* Package:    dev-libs/libsass-3.6.6:0/1
 * Repository: gentoo
 * Maintainer: nowa@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux
 * FEATURES:   network-sandbox preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
>>> Unpacking 'libsass-3.6.6.tar.gz' to /var/tmp/portage/dev-libs/libsass-3.6.6/work
>>> Source unpacked in /var/tmp/portage/dev-libs/libsass-3.6.6/work
>>> Preparing source in /var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6 ...
 * Running eautoreconf in '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6' ...
  [ ok ]
  [ ok ]
  [ ok ]
  [ ok ]
  [ ok ]
 * Running elibtoolize in: libsass-3.6.6/
 *   Applying clang-runtime/2.5.0 patch ...
 * Running elibtoolize in: libsass-3.6.6/script/
 *   Applying portage/1.2.0 patch ...
 *   Applying sed/1.5.6 patch ...
 *   Applying as-needed/2.5.0 patch ...
 *   Applying verbose-pic/2.4.7 patch ...
 *   Applying clang-runtime-ltmain/2.4.7 patch ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6 ...
 * econf: updating libsass-3.6.6/config.guess with /usr/share/gnuconfig/config.guess
 * econf: updating libsass-3.6.6/script/config.guess with /usr/share/gnuconfig/config.guess
 * econf: updating libsass-3.6.6/script/config.sub with /usr/share/gnuconfig/config.sub
 * econf: updating libsass-3.6.6/config.sub with /usr/share/gnuconfig/config.sub
./configure --prefix=/usr --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --datarootdir=/usr/share --disable-dependency-tracking --disable-silent-rules --disable-static --docdir=/usr/share/doc/libsass-3.6.6 --htmldir=/usr/share/doc/libsass-3.6.6/html --with-sysroot=/ --libdir=/usr/lib64 --enable-shared
checking for a BSD-compatible install... /var/tmp/portage/._portage_reinstall_.xp84rp8r/bin/ebuild-helpers/xattr/install -c
checking whether sleep supports fractional seconds... yes
checking filesystem timestamp resolution... 0.01
checking whether build environment is sane... yes
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checking if the linker (/usr/x86_64-pc-linux-gnu/bin/ld) is GNU ld... yes
checking for BSD- or MS-compatible name lister (nm)... /usr/bin/x86_64-pc-linux-gnu-nm -B
checking the name lister (/usr/bin/x86_64-pc-linux-gnu-nm -B) interface... BSD nm
checking whether ln -s works... yes
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checking how to convert x86_64-pc-linux-gnu file names to x86_64-pc-linux-gnu format... func_convert_file_noop
checking how to convert x86_64-pc-linux-gnu file names to toolchain format... func_convert_file_noop
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checking command to parse /usr/bin/x86_64-pc-linux-gnu-nm -B output from x86_64-pc-linux-gnu-gcc object... ok
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checking if x86_64-pc-linux-gnu-gcc supports -fno-rtti -fno-exceptions... no
checking for x86_64-pc-linux-gnu-gcc option to produce PIC... -fPIC -DPIC
checking if x86_64-pc-linux-gnu-gcc PIC flag -fPIC -DPIC works... yes
checking if x86_64-pc-linux-gnu-gcc static flag -static works... yes
checking if x86_64-pc-linux-gnu-gcc supports -c -o file.o... yes
checking if x86_64-pc-linux-gnu-gcc supports -c -o file.o... (cached) yes
checking whether the x86_64-pc-linux-gnu-gcc linker (/usr/x86_64-pc-linux-gnu/bin/ld -m elf_x86_64) supports shared libraries... yes
checking whether -lc should be explicitly linked in... no
checking dynamic linker characteristics... GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
checking for shl_load... no
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checking how to run the C++ preprocessor... x86_64-pc-linux-gnu-g++ -E
checking for ld used by x86_64-pc-linux-gnu-g++... /usr/x86_64-pc-linux-gnu/bin/ld -m elf_x86_64
checking if the linker (/usr/x86_64-pc-linux-gnu/bin/ld -m elf_x86_64) is GNU ld... yes
checking whether the x86_64-pc-linux-gnu-g++ linker (/usr/x86_64-pc-linux-gnu/bin/ld -m elf_x86_64) supports shared libraries... yes
checking for x86_64-pc-linux-gnu-g++ option to produce PIC... -fPIC -DPIC
checking if x86_64-pc-linux-gnu-g++ PIC flag -fPIC -DPIC works... yes
checking if x86_64-pc-linux-gnu-g++ static flag -static works... yes
checking if x86_64-pc-linux-gnu-g++ supports -c -o file.o... yes
checking if x86_64-pc-linux-gnu-g++ supports -c -o file.o... (cached) yes
checking whether the x86_64-pc-linux-gnu-g++ linker (/usr/x86_64-pc-linux-gnu/bin/ld -m elf_x86_64) supports shared libraries... yes
checking dynamic linker characteristics... (cached) GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
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checking for floor... yes
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checking for strtol... yes
checking for library containing dlopen... none required
configure: Building libsass (3.6.6)
checking that generated files are newer than configure... done
configure: creating ./config.status
config.status: creating include/sass/version.h
config.status: creating GNUmakefile
config.status: creating src/GNUmakefile
config.status: creating src/support/libsass.pc
config.status: creating src/config.h
config.status: executing depfiles commands
config.status: executing libtool commands
>>> Source configured.
>>> Compiling source in /var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6 ...
make -j2 
Making all in src
make  all-am
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CC   --mode=compile x86_64-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o cencode.lo cencode.c
libtool: compile:  x86_64-pc-linux-gnu-gcc -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c cencode.c  -fPIC -DPIC -o .libs/cencode.o
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o ast.lo ast.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c ast.cpp  -fPIC -DPIC -o .libs/ast.o
In file included from ast.cpp:5:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o ast_values.lo ast_values.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c ast_values.cpp  -fPIC -DPIC -o .libs/ast_values.o
In file included from ast_values.cpp:4:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o ast_supports.lo ast_supports.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c ast_supports.cpp  -fPIC -DPIC -o .libs/ast_supports.o
In file included from ast_supports.cpp:4:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o ast_sel_cmp.lo ast_sel_cmp.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c ast_sel_cmp.cpp  -fPIC -DPIC -o .libs/ast_sel_cmp.o
In file included from ast_selectors.hpp:7,
                 from ast_sel_cmp.cpp:5:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o ast_sel_unify.lo ast_sel_unify.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c ast_sel_unify.cpp  -fPIC -DPIC -o .libs/ast_sel_unify.o
In file included from ast_sel_unify.cpp:5:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o ast_sel_super.lo ast_sel_super.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c ast_sel_super.cpp  -fPIC -DPIC -o .libs/ast_sel_super.o
In file included from ast_sel_super.cpp:4:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o ast_sel_weave.lo ast_sel_weave.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c ast_sel_weave.cpp  -fPIC -DPIC -o .libs/ast_sel_weave.o
In file included from ast_sel_weave.cpp:5:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o ast_selectors.lo ast_selectors.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c ast_selectors.cpp  -fPIC -DPIC -o .libs/ast_selectors.o
In file included from ast_selectors.cpp:5:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o constants.lo constants.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c constants.cpp  -fPIC -DPIC -o .libs/constants.o
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o context.lo context.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c context.cpp  -fPIC -DPIC -o .libs/context.o
In file included from context.cpp:4:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:18:
operation.hpp:206:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SelectorCombinator*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  206 |     T operator()(SelectorCombinator* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
In file included from expand.hpp:7,
                 from context.cpp:17:
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:194:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameters*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  194 |     T operator()(Parameters* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:193:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameter*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  193 |     T operator()(Parameter* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:183:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsCondition*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  183 |     T operator()(SupportsCondition* x)     { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:176:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Color*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  176 |     T operator()(Color* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:173:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Error*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  173 |     T operator()(Custom_Error* x)           { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:172:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Warning*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  172 |     T operator()(Custom_Warning* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:168:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Function*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  168 |     T operator()(Function* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:163:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Mixin_Call*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  163 |     T operator()(Mixin_Call* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:162:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Definition*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  162 |     T operator()(Definition* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:161:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::ExtendRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  161 |     T operator()(ExtendRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:160:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Content*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  160 |     T operator()(Content* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:150:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Import_Stub*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  150 |     T operator()(Import_Stub* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:149:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Import*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  149 |     T operator()(Import* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:147:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Declaration*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  147 |     T operator()(Declaration* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:146:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Keyframe_Rule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  146 |     T operator()(Keyframe_Rule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:145:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  145 |     T operator()(AtRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:144:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRootRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  144 |     T operator()(AtRootRule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:143:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaQuery*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  143 |     T operator()(CssMediaQuery* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:142:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  142 |     T operator()(CssMediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:141:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::MediaRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  141 |     T operator()(MediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:140:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  140 |     T operator()(SupportsRule* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:139:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Trace*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  139 |     T operator()(Trace* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:138:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Bubble*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  138 |     T operator()(Bubble* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:137:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::StyleRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  137 |     T operator()(StyleRule* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:134:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AST_Node*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  134 |     T operator()(AST_Node* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o fn_utils.lo fn_utils.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c fn_utils.cpp  -fPIC -DPIC -o .libs/fn_utils.o
In file included from parser.hpp:11,
                 from fn_utils.cpp:5:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o fn_miscs.lo fn_miscs.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c fn_miscs.cpp  -fPIC -DPIC -o .libs/fn_miscs.o
In file included from fn_miscs.cpp:1:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:18:
operation.hpp:206:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SelectorCombinator*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  206 |     T operator()(SelectorCombinator* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
In file included from expand.hpp:7,
                 from fn_miscs.cpp:2:
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:194:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameters*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  194 |     T operator()(Parameters* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:193:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameter*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  193 |     T operator()(Parameter* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:183:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsCondition*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  183 |     T operator()(SupportsCondition* x)     { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:176:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Color*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  176 |     T operator()(Color* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:173:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Error*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  173 |     T operator()(Custom_Error* x)           { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:172:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Warning*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  172 |     T operator()(Custom_Warning* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:168:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Function*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  168 |     T operator()(Function* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:163:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Mixin_Call*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  163 |     T operator()(Mixin_Call* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:162:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Definition*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  162 |     T operator()(Definition* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:161:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::ExtendRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  161 |     T operator()(ExtendRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:160:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Content*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  160 |     T operator()(Content* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:150:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Import_Stub*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  150 |     T operator()(Import_Stub* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:149:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Import*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  149 |     T operator()(Import* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:147:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Declaration*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  147 |     T operator()(Declaration* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:146:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Keyframe_Rule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  146 |     T operator()(Keyframe_Rule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:145:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  145 |     T operator()(AtRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:144:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRootRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  144 |     T operator()(AtRootRule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:143:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaQuery*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  143 |     T operator()(CssMediaQuery* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:142:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  142 |     T operator()(CssMediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:141:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::MediaRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  141 |     T operator()(MediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:140:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  140 |     T operator()(SupportsRule* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:139:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Trace*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  139 |     T operator()(Trace* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:138:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Bubble*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  138 |     T operator()(Bubble* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:137:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::StyleRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  137 |     T operator()(StyleRule* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:134:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AST_Node*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  134 |     T operator()(AST_Node* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o fn_maps.lo fn_maps.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c fn_maps.cpp  -fPIC -DPIC -o .libs/fn_maps.o
In file included from values.hpp:4,
                 from operators.hpp:4,
                 from fn_maps.cpp:1:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o fn_lists.lo fn_lists.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c fn_lists.cpp  -fPIC -DPIC -o .libs/fn_lists.o
In file included from values.hpp:4,
                 from operators.hpp:4,
                 from fn_lists.cpp:6:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from operation.hpp:15,
                 from listize.hpp:9,
                 from fn_lists.cpp:5:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o fn_colors.lo fn_colors.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c fn_colors.cpp  -fPIC -DPIC -o .libs/fn_colors.o
In file included from fn_colors.cpp:6:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o fn_numbers.lo fn_numbers.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c fn_numbers.cpp  -fPIC -DPIC -o .libs/fn_numbers.o
In file included from fn_numbers.cpp:15:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o fn_strings.lo fn_strings.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c fn_strings.cpp  -fPIC -DPIC -o .libs/fn_strings.o
In file included from fn_strings.cpp:6:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o fn_selectors.lo fn_selectors.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c fn_selectors.cpp  -fPIC -DPIC -o .libs/fn_selectors.o
In file included from parser.hpp:11,
                 from fn_selectors.cpp:3:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o color_maps.lo color_maps.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c color_maps.cpp  -fPIC -DPIC -o .libs/color_maps.o
In file included from color_maps.cpp:5:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o environment.lo environment.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c environment.cpp  -fPIC -DPIC -o .libs/environment.o
In file included from environment.cpp:2:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o ast_fwd_decl.lo ast_fwd_decl.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c ast_fwd_decl.cpp  -fPIC -DPIC -o .libs/ast_fwd_decl.o
In file included from ast_fwd_decl.cpp:1:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o bind.lo bind.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c bind.cpp  -fPIC -DPIC -o .libs/bind.o
In file included from bind.cpp:3:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from environment.hpp:11,
                 from bind.hpp:6,
                 from bind.cpp:2:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:18:
operation.hpp:206:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SelectorCombinator*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  206 |     T operator()(SelectorCombinator* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
In file included from expand.hpp:7,
                 from bind.cpp:6:
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:194:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameters*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  194 |     T operator()(Parameters* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:193:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameter*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  193 |     T operator()(Parameter* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:183:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsCondition*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  183 |     T operator()(SupportsCondition* x)     { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:176:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Color*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  176 |     T operator()(Color* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:173:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Error*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  173 |     T operator()(Custom_Error* x)           { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:172:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Warning*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  172 |     T operator()(Custom_Warning* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:168:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Function*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  168 |     T operator()(Function* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:163:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Mixin_Call*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  163 |     T operator()(Mixin_Call* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:162:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Definition*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  162 |     T operator()(Definition* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:161:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::ExtendRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  161 |     T operator()(ExtendRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:160:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Content*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  160 |     T operator()(Content* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:150:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Import_Stub*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  150 |     T operator()(Import_Stub* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:149:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Import*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  149 |     T operator()(Import* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:147:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Declaration*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  147 |     T operator()(Declaration* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:146:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Keyframe_Rule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  146 |     T operator()(Keyframe_Rule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:145:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  145 |     T operator()(AtRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:144:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRootRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  144 |     T operator()(AtRootRule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:143:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaQuery*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  143 |     T operator()(CssMediaQuery* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:142:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  142 |     T operator()(CssMediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:141:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::MediaRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  141 |     T operator()(MediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:140:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  140 |     T operator()(SupportsRule* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:139:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Trace*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  139 |     T operator()(Trace* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:138:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Bubble*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  138 |     T operator()(Bubble* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:137:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::StyleRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  137 |     T operator()(StyleRule* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:134:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AST_Node*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  134 |     T operator()(AST_Node* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o file.lo file.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c file.cpp  -fPIC -DPIC -o .libs/file.o
In file included from context.hpp:7,
                 from file.cpp:21:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o util_string.lo util_string.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c util_string.cpp  -fPIC -DPIC -o .libs/util_string.o
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o util.lo util.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c util.cpp  -fPIC -DPIC -o .libs/util.o
In file included from util.cpp:3:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o json.lo json.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c json.cpp  -fPIC -DPIC -o .libs/json.o
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o units.lo units.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c units.cpp  -fPIC -DPIC -o .libs/units.o
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o values.lo values.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c values.cpp  -fPIC -DPIC -o .libs/values.o
In file included from values.hpp:4,
                 from values.cpp:6:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
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libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c plugins.cpp  -fPIC -DPIC -o .libs/plugins.o
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libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c source.cpp  -fPIC -DPIC -o .libs/source.o
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libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c position.cpp  -fPIC -DPIC -o .libs/position.o
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libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c lexer.cpp  -fPIC -DPIC -o .libs/lexer.o
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/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o parser_selectors.lo parser_selectors.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c parser_selectors.cpp  -fPIC -DPIC -o .libs/parser_selectors.o
In file included from parser.hpp:11,
                 from parser_selectors.cpp:5:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o prelexer.lo prelexer.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c prelexer.cpp  -fPIC -DPIC -o .libs/prelexer.o
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o eval.lo eval.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c eval.cpp  -fPIC -DPIC -o .libs/eval.o
In file included from eval.hpp:7,
                 from eval.cpp:13:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:18:
operation.hpp:206:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SelectorCombinator*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  206 |     T operator()(SelectorCombinator* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:194:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameters*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  194 |     T operator()(Parameters* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:193:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameter*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  193 |     T operator()(Parameter* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:183:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsCondition*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  183 |     T operator()(SupportsCondition* x)     { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:176:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Color*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  176 |     T operator()(Color* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:173:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Error*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  173 |     T operator()(Custom_Error* x)           { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:172:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Warning*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  172 |     T operator()(Custom_Warning* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:168:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Function*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  168 |     T operator()(Function* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:163:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Mixin_Call*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  163 |     T operator()(Mixin_Call* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:162:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Definition*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  162 |     T operator()(Definition* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:161:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::ExtendRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  161 |     T operator()(ExtendRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:160:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Content*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  160 |     T operator()(Content* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:150:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Import_Stub*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  150 |     T operator()(Import_Stub* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:149:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Import*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  149 |     T operator()(Import* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:147:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Declaration*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  147 |     T operator()(Declaration* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:146:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Keyframe_Rule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  146 |     T operator()(Keyframe_Rule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:145:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  145 |     T operator()(AtRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:144:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRootRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  144 |     T operator()(AtRootRule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:143:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaQuery*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  143 |     T operator()(CssMediaQuery* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:142:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  142 |     T operator()(CssMediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:141:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::MediaRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  141 |     T operator()(MediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:140:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  140 |     T operator()(SupportsRule* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:139:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Trace*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  139 |     T operator()(Trace* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:138:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Bubble*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  138 |     T operator()(Bubble* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:137:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::StyleRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  137 |     T operator()(StyleRule* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:134:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AST_Node*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  134 |     T operator()(AST_Node* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o parser.lo parser.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c parser.cpp  -fPIC -DPIC -o .libs/parser.o
In file included from parser.hpp:11,
                 from parser.cpp:5:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o eval_selectors.lo eval_selectors.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c eval_selectors.cpp  -fPIC -DPIC -o .libs/eval_selectors.o
In file included from expand.hpp:6,
                 from eval_selectors.cpp:4:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:18:
operation.hpp:206:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SelectorCombinator*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  206 |     T operator()(SelectorCombinator* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
In file included from expand.hpp:7:
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:194:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameters*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  194 |     T operator()(Parameters* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:193:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameter*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  193 |     T operator()(Parameter* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:183:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsCondition*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  183 |     T operator()(SupportsCondition* x)     { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:176:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Color*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  176 |     T operator()(Color* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:173:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Error*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  173 |     T operator()(Custom_Error* x)           { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:172:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Warning*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  172 |     T operator()(Custom_Warning* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:168:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Function*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  168 |     T operator()(Function* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:163:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Mixin_Call*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  163 |     T operator()(Mixin_Call* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:162:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Definition*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  162 |     T operator()(Definition* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:161:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::ExtendRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  161 |     T operator()(ExtendRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:160:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Content*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  160 |     T operator()(Content* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:150:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Import_Stub*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  150 |     T operator()(Import_Stub* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:149:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Import*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  149 |     T operator()(Import* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:147:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Declaration*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  147 |     T operator()(Declaration* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:146:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Keyframe_Rule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  146 |     T operator()(Keyframe_Rule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:145:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  145 |     T operator()(AtRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:144:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRootRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  144 |     T operator()(AtRootRule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:143:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaQuery*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  143 |     T operator()(CssMediaQuery* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:142:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  142 |     T operator()(CssMediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:141:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::MediaRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  141 |     T operator()(MediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:140:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  140 |     T operator()(SupportsRule* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:139:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Trace*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  139 |     T operator()(Trace* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:138:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Bubble*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  138 |     T operator()(Bubble* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:137:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::StyleRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  137 |     T operator()(StyleRule* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:134:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AST_Node*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  134 |     T operator()(AST_Node* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o listize.lo listize.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c listize.cpp  -fPIC -DPIC -o .libs/listize.o
In file included from context.hpp:7,
                 from listize.cpp:10:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from operation.hpp:15,
                 from listize.hpp:9,
                 from listize.cpp:9:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o expand.lo expand.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c expand.cpp  -fPIC -DPIC -o .libs/expand.o
In file included from expand.cpp:8:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:18:
operation.hpp:206:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SelectorCombinator*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  206 |     T operator()(SelectorCombinator* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
In file included from expand.hpp:7,
                 from expand.cpp:9:
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:194:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameters*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  194 |     T operator()(Parameters* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:193:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameter*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  193 |     T operator()(Parameter* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:183:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsCondition*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  183 |     T operator()(SupportsCondition* x)     { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:176:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Color*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  176 |     T operator()(Color* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:173:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Error*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  173 |     T operator()(Custom_Error* x)           { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:172:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Warning*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  172 |     T operator()(Custom_Warning* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:168:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Function*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  168 |     T operator()(Function* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:163:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Mixin_Call*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  163 |     T operator()(Mixin_Call* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:162:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Definition*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  162 |     T operator()(Definition* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:161:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::ExtendRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  161 |     T operator()(ExtendRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:160:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Content*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  160 |     T operator()(Content* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:150:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Import_Stub*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  150 |     T operator()(Import_Stub* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:149:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Import*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  149 |     T operator()(Import* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:147:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Declaration*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  147 |     T operator()(Declaration* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:146:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Keyframe_Rule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  146 |     T operator()(Keyframe_Rule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:145:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  145 |     T operator()(AtRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:144:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRootRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  144 |     T operator()(AtRootRule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:143:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaQuery*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  143 |     T operator()(CssMediaQuery* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:142:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  142 |     T operator()(CssMediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:141:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::MediaRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  141 |     T operator()(MediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:140:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  140 |     T operator()(SupportsRule* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:139:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Trace*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  139 |     T operator()(Trace* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:138:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Bubble*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  138 |     T operator()(Bubble* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:137:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::StyleRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  137 |     T operator()(StyleRule* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:134:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AST_Node*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  134 |     T operator()(AST_Node* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o cssize.lo cssize.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c cssize.cpp  -fPIC -DPIC -o .libs/cssize.o
In file included from cssize.hpp:4,
                 from cssize.cpp:9:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o extension.lo extension.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c extension.cpp  -fPIC -DPIC -o .libs/extension.o
In file included from extension.cpp:7:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o stylesheet.lo stylesheet.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c stylesheet.cpp  -fPIC -DPIC -o .libs/stylesheet.o
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o extender.lo extender.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c extender.cpp  -fPIC -DPIC -o .libs/extender.o
In file included from extender.cpp:4:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o output.lo output.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c output.cpp  -fPIC -DPIC -o .libs/output.o
In file included from output.cpp:5:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o emitter.lo emitter.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c emitter.cpp  -fPIC -DPIC -o .libs/emitter.o
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o inspect.lo inspect.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c inspect.cpp  -fPIC -DPIC -o .libs/inspect.o
In file included from inspect.cpp:12:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o check_nesting.lo check_nesting.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c check_nesting.cpp  -fPIC -DPIC -o .libs/check_nesting.o
In file included from check_nesting.cpp:4:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o remove_placeholders.lo remove_placeholders.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c remove_placeholders.cpp  -fPIC -DPIC -o .libs/remove_placeholders.o
In file included from remove_placeholders.cpp:4:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o sass.lo sass.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c sass.cpp  -fPIC -DPIC -o .libs/sass.o
In file included from context.hpp:7,
                 from sass.cpp:13:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o sass_values.lo sass_values.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c sass_values.cpp  -fPIC -DPIC -o .libs/sass_values.o
In file included from eval.hpp:7,
                 from sass_values.cpp:8:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:18:
operation.hpp:206:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SelectorCombinator*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  206 |     T operator()(SelectorCombinator* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:194:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameters*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  194 |     T operator()(Parameters* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:193:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Parameter*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  193 |     T operator()(Parameter* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:183:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsCondition*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  183 |     T operator()(SupportsCondition* x)     { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:176:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Color*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  176 |     T operator()(Color* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:173:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Error*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  173 |     T operator()(Custom_Error* x)           { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:172:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Custom_Warning*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  172 |     T operator()(Custom_Warning* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:168:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Function*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  168 |     T operator()(Function* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:163:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Mixin_Call*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  163 |     T operator()(Mixin_Call* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:162:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Definition*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  162 |     T operator()(Definition* x)             { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:161:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::ExtendRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  161 |     T operator()(ExtendRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:160:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Content*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  160 |     T operator()(Content* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:150:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Import_Stub*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  150 |     T operator()(Import_Stub* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:149:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Import*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  149 |     T operator()(Import* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:147:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Declaration*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  147 |     T operator()(Declaration* x)            { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:146:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Keyframe_Rule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  146 |     T operator()(Keyframe_Rule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:145:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  145 |     T operator()(AtRule* x)              { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:144:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AtRootRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  144 |     T operator()(AtRootRule* x)          { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:143:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaQuery*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  143 |     T operator()(CssMediaQuery* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:142:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::CssMediaRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  142 |     T operator()(CssMediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:141:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::MediaRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  141 |     T operator()(MediaRule* x) { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:140:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::SupportsRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  140 |     T operator()(SupportsRule* x)         { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:139:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Trace*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  139 |     T operator()(Trace* x)                  { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:138:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::Bubble*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  138 |     T operator()(Bubble* x)                 { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:137:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::StyleRule*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  137 |     T operator()(StyleRule* x)                { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
operation.hpp:134:7: warning: 'T Sass::Operation_CRTP<T, D>::operator()(Sass::AST_Node*) [with T = Sass::Expression*; D = Sass::Eval]' was hidden [-Woverloaded-virtual=]
  134 |     T operator()(AST_Node* x)               { return static_cast<D*>(this)->fallback(x); }
      |       ^~~~~~~~
eval.hpp:96:17: note:   by 'Sass::Eval::operator()'
   96 |     Expression* operator()(Parent_Reference*);
      |                 ^~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o sass_context.lo sass_context.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c sass_context.cpp  -fPIC -DPIC -o .libs/sass_context.o
In file included from sass_context.cpp:4:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o sass_functions.lo sass_functions.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c sass_functions.cpp  -fPIC -DPIC -o .libs/sass_functions.o
In file included from context.hpp:7,
                 from sass_functions.cpp:7:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o sass2scss.lo sass2scss.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c sass2scss.cpp  -fPIC -DPIC -o .libs/sass2scss.o
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o backtrace.lo backtrace.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c backtrace.cpp  -fPIC -DPIC -o .libs/backtrace.o
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o operators.lo operators.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c operators.cpp  -fPIC -DPIC -o .libs/operators.o
In file included from values.hpp:4,
                 from operators.hpp:4,
                 from operators.cpp:6:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o ast2c.lo ast2c.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c ast2c.cpp  -fPIC -DPIC -o .libs/ast2c.o
In file included from ast2c.cpp:6:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from operation.hpp:15,
                 from ast2c.hpp:5,
                 from ast2c.cpp:5:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o c2ast.lo c2ast.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c c2ast.cpp  -fPIC -DPIC -o .libs/c2ast.o
In file included from c2ast.cpp:1:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o to_value.lo to_value.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c to_value.cpp  -fPIC -DPIC -o .libs/to_value.o
In file included from to_value.cpp:5:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o source_map.lo source_map.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c source_map.cpp  -fPIC -DPIC -o .libs/source_map.o
In file included from source_map.cpp:10:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o allocator.lo `test -f 'memory/allocator.cpp' || echo './'`memory/allocator.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c memory/allocator.cpp  -fPIC -DPIC -o .libs/allocator.o
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o error_handling.lo error_handling.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c error_handling.cpp  -fPIC -DPIC -o .libs/error_handling.o
In file included from error_handling.cpp:5:
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:165:18: note:   by 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const'
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:167:17: note:   by 'bool Sass::Expression::operator!=(const Sass::Expression&) const'
  167 |     inline bool operator!=(const Expression& rhs) const { return !(rhs == *this); }
      |                 ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:908:10: note:   by 'bool Sass::CssMediaRule::operator==(const Sass::CssMediaRule&) const'
  908 |     bool operator== (const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:911:10: note:   by 'bool Sass::CssMediaRule::operator!=(const Sass::CssMediaRule&) const'
  911 |     bool operator!=(const CssMediaRule& rhs) const {
      |          ^~~~~~~~
ast.hpp:90:18: warning: 'virtual bool Sass::AST_Node::operator==(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   90 |     virtual bool operator== (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:939:10: note:   by 'bool Sass::CssMediaQuery::operator==(const Sass::CssMediaQuery&) const'
  939 |     bool operator== (const CssMediaQuery& rhs) const;
      |          ^~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast.hpp:940:10: note:   by 'bool Sass::CssMediaQuery::operator!=(const Sass::CssMediaQuery&) const'
  940 |     bool operator!=(const CssMediaQuery& rhs) const {
      |          ^~~~~~~~
ast.hpp:165:18: warning: 'virtual bool Sass::Expression::operator==(const Sass::Expression&) const' was hidden [-Woverloaded-virtual=]
  165 |     virtual bool operator== (const Expression& rhs) const { return false; }
      |                  ^~~~~~~~
In file included from ast.hpp:14:
ast_def_macros.hpp:105:16: note:   by 'virtual bool Sass::Selector::operator==(const Sass::Selector&) const'
  105 |   virtual bool operator==(const klass& rhs) const = 0; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast.hpp:96:18: warning: 'virtual bool Sass::AST_Node::operator!=(const Sass::AST_Node&) const' was hidden [-Woverloaded-virtual=]
   96 |     virtual bool operator!= (const AST_Node& rhs) const {
      |                  ^~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ast.hpp:1055:
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PlaceholderSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PlaceholderSelector::operator!=(const Sass::PlaceholderSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:157:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  157 |     ATTACH_CMP_OPERATIONS(PlaceholderSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::TypeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::TypeSelector::operator!=(const Sass::TypeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:174:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  174 |     ATTACH_CMP_OPERATIONS(TypeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::ClassSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ClassSelector::operator!=(const Sass::ClassSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:188:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  188 |     ATTACH_CMP_OPERATIONS(ClassSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::IDSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::IDSelector::operator!=(const Sass::IDSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:204:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  204 |     ATTACH_CMP_OPERATIONS(IDSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::AttributeSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::AttributeSelector::operator!=(const Sass::AttributeSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:223:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  223 |     ATTACH_CMP_OPERATIONS(AttributeSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:137:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::CompoundSelector&) const' was hidden [-Woverloaded-virtual=]
  137 |     virtual bool operator==(const CompoundSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:136:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::ComplexSelector&) const' was hidden [-Woverloaded-virtual=]
  136 |     virtual bool operator==(const ComplexSelector& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:135:18: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::SelectorList&) const' was hidden [-Woverloaded-virtual=]
  135 |     virtual bool operator==(const SelectorList& rhs) const;
      |                  ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_selectors.hpp:133:10: warning: 'virtual bool Sass::SimpleSelector::operator==(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  133 |     bool operator==(const Selector& rhs) const final override;
      |          ^~~~~~~~
ast_def_macros.hpp:109:16: note:   by 'Sass::PseudoSelector::operator=='
  109 |   virtual bool operator==(const klass& rhs) const; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SimpleSelector::operator!=(const Sass::SimpleSelector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:139:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  139 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SimpleSelector);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::PseudoSelector::operator!=(const Sass::PseudoSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:262:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  262 |     ATTACH_CMP_OPERATIONS(PseudoSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::ComplexSelector::operator!=(const Sass::ComplexSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:310:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  310 |     ATTACH_CMP_OPERATIONS(ComplexSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::Selector::operator!=(const Sass::Selector&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:56:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
   56 |     ATTACH_VIRTUAL_CMP_OPERATIONS(Selector)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: note:   by 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const'
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::SelectorCombinator::operator!=(const Sass::SelectorCombinator&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:407:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  407 |     ATTACH_CMP_OPERATIONS(SelectorCombinator)
      |     ^~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:106:16: warning: 'virtual bool Sass::SelectorComponent::operator!=(const Sass::SelectorComponent&) const' was hidden [-Woverloaded-virtual=]
  106 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:349:5: note: in expansion of macro 'ATTACH_VIRTUAL_CMP_OPERATIONS'
  349 |     ATTACH_VIRTUAL_CMP_OPERATIONS(SelectorComponent);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ast_def_macros.hpp:110:16: note:   by 'virtual bool Sass::CompoundSelector::operator!=(const Sass::CompoundSelector&) const'
  110 |   virtual bool operator!=(const klass& rhs) const { return !(*this == rhs); }; \
      |                ^~~~~~~~
ast_selectors.hpp:459:5: note: in expansion of macro 'ATTACH_CMP_OPERATIONS'
  459 |     ATTACH_CMP_OPERATIONS(CompoundSelector)
      |     ^~~~~~~~~~~~~~~~~~~~~
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o shared_ptr.lo `test -f 'memory/shared_ptr.cpp' || echo './'`memory/shared_ptr.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c memory/shared_ptr.cpp  -fPIC -DPIC -o .libs/shared_ptr.o
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o utf8_string.lo utf8_string.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c utf8_string.cpp  -fPIC -DPIC -o .libs/utf8_string.o
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=compile x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I.  -I../include  -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c -o base64vlq.lo base64vlq.cpp
libtool: compile:  x86_64-pc-linux-gnu-g++ -DHAVE_CONFIG_H -I. -I../include -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -c base64vlq.cpp  -fPIC -DPIC -o .libs/base64vlq.o
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
/bin/sh ../libtool  --tag=CXX   --mode=link x86_64-pc-linux-gnu-g++ -Wall -O2 -std=c++11 -O3 -march=native -mtune=native -fomit-frame-pointer -pipe -Wall -O2  -no-undefined -version-info 1:0:0 -Wl,-O1 -Wl,--as-needed -Wl,-z,pack-relative-relocs -o libsass.la -rpath /usr/lib64 cencode.lo ast.lo ast_values.lo ast_supports.lo ast_sel_cmp.lo ast_sel_unify.lo ast_sel_super.lo ast_sel_weave.lo ast_selectors.lo context.lo constants.lo fn_utils.lo fn_miscs.lo fn_maps.lo fn_lists.lo fn_colors.lo fn_numbers.lo fn_strings.lo fn_selectors.lo color_maps.lo environment.lo ast_fwd_decl.lo bind.lo file.lo util.lo util_string.lo json.lo units.lo values.lo plugins.lo source.lo position.lo lexer.lo parser.lo parser_selectors.lo prelexer.lo eval.lo eval_selectors.lo expand.lo listize.lo cssize.lo extender.lo extension.lo stylesheet.lo output.lo inspect.lo emitter.lo check_nesting.lo remove_placeholders.lo sass.lo sass_values.lo sass_context.lo sass_functions.lo sass2scss.lo backtrace.lo operators.lo ast2c.lo c2ast.lo to_value.lo source_map.lo error_handling.lo allocator.lo shared_ptr.lo utf8_string.lo base64vlq.lo  
libtool: link: x86_64-pc-linux-gnu-g++  -fPIC -DPIC -shared -nostdlib /usr/lib/gcc/x86_64-pc-linux-gnu/14/../../../../lib64/crti.o /usr/lib/gcc/x86_64-pc-linux-gnu/14/crtbeginS.o  .libs/cencode.o .libs/ast.o .libs/ast_values.o .libs/ast_supports.o .libs/ast_sel_cmp.o .libs/ast_sel_unify.o .libs/ast_sel_super.o .libs/ast_sel_weave.o .libs/ast_selectors.o .libs/context.o .libs/constants.o .libs/fn_utils.o .libs/fn_miscs.o .libs/fn_maps.o .libs/fn_lists.o .libs/fn_colors.o .libs/fn_numbers.o .libs/fn_strings.o .libs/fn_selectors.o .libs/color_maps.o .libs/environment.o .libs/ast_fwd_decl.o .libs/bind.o .libs/file.o .libs/util.o .libs/util_string.o .libs/json.o .libs/units.o .libs/values.o .libs/plugins.o .libs/source.o .libs/position.o .libs/lexer.o .libs/parser.o .libs/parser_selectors.o .libs/prelexer.o .libs/eval.o .libs/eval_selectors.o .libs/expand.o .libs/listize.o .libs/cssize.o .libs/extender.o .libs/extension.o .libs/stylesheet.o .libs/output.o .libs/inspect.o .libs/emitter.o .libs/check_nesting.o .libs/remove_placeholders.o .libs/sass.o .libs/sass_values.o .libs/sass_context.o .libs/sass_functions.o .libs/sass2scss.o .libs/backtrace.o .libs/operators.o .libs/ast2c.o .libs/c2ast.o .libs/to_value.o .libs/source_map.o .libs/error_handling.o .libs/allocator.o .libs/shared_ptr.o .libs/utf8_string.o .libs/base64vlq.o   -Wl,--as-needed -L/usr/lib/gcc/x86_64-pc-linux-gnu/14 -L/usr/lib/gcc/x86_64-pc-linux-gnu/14/../../../../lib64 -L/lib/../lib64 -L/usr/lib/../lib64 -L/usr/lib/gcc/x86_64-pc-linux-gnu/14/../../../../x86_64-pc-linux-gnu/lib -L/usr/lib/gcc/x86_64-pc-linux-gnu/14/../../.. -lstdc++ -lm -lc -lgcc_s /usr/lib/gcc/x86_64-pc-linux-gnu/14/crtendS.o /usr/lib/gcc/x86_64-pc-linux-gnu/14/../../../../lib64/crtn.o  -O2 -O3 -march=native -mtune=native -O2 -Wl,-O1 -Wl,-z -Wl,pack-relative-relocs   -Wl,-soname -Wl,libsass.so.1 -o .libs/libsass.so.1.0.0
libtool: link: (cd ".libs" && rm -f "libsass.so.1" && ln -s "libsass.so.1.0.0" "libsass.so.1")
libtool: link: (cd ".libs" && rm -f "libsass.so" && ln -s "libsass.so.1.0.0" "libsass.so")
libtool: link: ( cd ".libs" && rm -f "libsass.la" && ln -s "../libsass.la" "libsass.la" )
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[1]: Nothing to be done for 'all-am'.
>>> Source compiled.
>>> Test phase [not enabled]: dev-libs/libsass-3.6.6

>>> Install dev-libs/libsass-3.6.6 into /var/tmp/portage/dev-libs/libsass-3.6.6/image
make -j2 DESTDIR=/var/tmp/portage/dev-libs/libsass-3.6.6/image install 
Making install in src
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
 /usr/bin/mkdir -p '/var/tmp/portage/dev-libs/libsass-3.6.6/image/usr/lib64'
 /bin/sh ../libtool   --mode=install /var/tmp/portage/._portage_reinstall_.xp84rp8r/bin/ebuild-helpers/xattr/install -c   libsass.la '/var/tmp/portage/dev-libs/libsass-3.6.6/image/usr/lib64'
libtool: install: /var/tmp/portage/._portage_reinstall_.xp84rp8r/bin/ebuild-helpers/xattr/install -c .libs/libsass.so.1.0.0 /var/tmp/portage/dev-libs/libsass-3.6.6/image/usr/lib64/libsass.so.1.0.0
libtool: install: (cd /var/tmp/portage/dev-libs/libsass-3.6.6/image/usr/lib64 && { ln -s -f libsass.so.1.0.0 libsass.so.1 || { rm -f libsass.so.1 && ln -s libsass.so.1.0.0 libsass.so.1; }; })
libtool: install: (cd /var/tmp/portage/dev-libs/libsass-3.6.6/image/usr/lib64 && { ln -s -f libsass.so.1.0.0 libsass.so || { rm -f libsass.so && ln -s libsass.so.1.0.0 libsass.so; }; })
libtool: install: /var/tmp/portage/._portage_reinstall_.xp84rp8r/bin/ebuild-helpers/xattr/install -c .libs/libsass.lai /var/tmp/portage/dev-libs/libsass-3.6.6/image/usr/lib64/libsass.la
libtool: warning: remember to run 'libtool --finish /usr/lib64'
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
 /usr/bin/mkdir -p '/var/tmp/portage/dev-libs/libsass-3.6.6/image/usr/include'
 /var/tmp/portage/._portage_reinstall_.xp84rp8r/bin/ebuild-helpers/xattr/install -c -m 644 ../include/sass.h ../include/sass2scss.h '/var/tmp/portage/dev-libs/libsass-3.6.6/image/usr/include'
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
 /usr/bin/mkdir -p '/var/tmp/portage/dev-libs/libsass-3.6.6/image/usr/lib64/pkgconfig'
 /var/tmp/portage/._portage_reinstall_.xp84rp8r/bin/ebuild-helpers/xattr/install -c -m 644 support/libsass.pc '/var/tmp/portage/dev-libs/libsass-3.6.6/image/usr/lib64/pkgconfig'
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Entering directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
 /usr/bin/mkdir -p '/var/tmp/portage/dev-libs/libsass-3.6.6/image/usr/include/sass'
 /var/tmp/portage/._portage_reinstall_.xp84rp8r/bin/ebuild-helpers/xattr/install -c -m 644 ../include/sass/base.h ../include/sass/values.h ../include/sass/version.h ../include/sass/context.h ../include/sass/functions.h '/var/tmp/portage/dev-libs/libsass-3.6.6/image/usr/include/sass'
make[2]: Leaving directory '/var/tmp/portage/dev-libs/libsass-3.6.6/work/libsass-3.6.6/src'
make[2]: Nothing to be done for 'install-exec-am'.
make[2]: Nothing to be done for 'install-data-am'.
>>> Completed installing dev-libs/libsass-3.6.6 into /var/tmp/portage/dev-libs/libsass-3.6.6/image

 * Final size of build directory: 17256 KiB (16.8 MiB)
 * Final size of installed tree:   3784 KiB ( 3.6 MiB)

strip: x86_64-pc-linux-gnu-strip --strip-unneeded -N __gentoo_check_ldflags__ -R .comment -R .GCC.command.line -R .note.gnu.gold-version
   /usr/lib64/libsass.so.1.0.0