Performing C++ SOURCE FILE Test HAVE_CXX_FLAG_WSHORTEN_64_TO_32 failed with the following output:
Change Dir: /var/tmp/portage/media-sound/mixxx-2.3.1/work/mixxx-2.3.1_build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_a00aa && [1/2] Building CXX object CMakeFiles/cmTC_a00aa.dir/src.cxx.o
FAILED: CMakeFiles/cmTC_a00aa.dir/src.cxx.o 
/usr/bin/x86_64-pc-linux-gnu-g++ -DHAVE_CXX_FLAG_WSHORTEN_64_TO_32   -O2 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0  -std=c++11  -Wall  -Wextra  -Wshadow  -Wshorten-64-to-32   -Wshorten-64-to-32 -o CMakeFiles/cmTC_a00aa.dir/src.cxx.o -c /var/tmp/portage/media-sound/mixxx-2.3.1/work/mixxx-2.3.1_build/CMakeFiles/CMakeTmp/src.cxx
x86_64-pc-linux-gnu-g++: error: unrecognized command-line option '-Wshorten-64-to-32'
x86_64-pc-linux-gnu-g++: error: unrecognized command-line option '-Wshorten-64-to-32'
ninja: build stopped: subcommand failed.


Source file was:
int main() { return 0; }
Performing C++ SOURCE FILE Test HAVE_CXX_FLAG_WD654 failed with the following output:
Change Dir: /var/tmp/portage/media-sound/mixxx-2.3.1/work/mixxx-2.3.1_build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_91c52 && [1/2] Building CXX object CMakeFiles/cmTC_91c52.dir/src.cxx.o
FAILED: CMakeFiles/cmTC_91c52.dir/src.cxx.o 
/usr/bin/x86_64-pc-linux-gnu-g++ -DHAVE_CXX_FLAG_WD654   -O2 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0  -std=c++11  -Wall  -Wextra  -Wshadow  -fstrict-aliasing  -Wno-deprecated-declarations  -Wstrict-aliasing  -wd654   -wd654 -o CMakeFiles/cmTC_91c52.dir/src.cxx.o -c /var/tmp/portage/media-sound/mixxx-2.3.1/work/mixxx-2.3.1_build/CMakeFiles/CMakeTmp/src.cxx
x86_64-pc-linux-gnu-g++: error: unrecognized command-line option '-wd654'
x86_64-pc-linux-gnu-g++: error: unrecognized command-line option '-wd654'
ninja: build stopped: subcommand failed.


Source file was:
int main() { return 0; }
Performing C++ SOURCE FILE Test HAVE_CXX_FLAG_WTHREAD_SAFETY failed with the following output:
Change Dir: /var/tmp/portage/media-sound/mixxx-2.3.1/work/mixxx-2.3.1_build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_93b1f && [1/2] Building CXX object CMakeFiles/cmTC_93b1f.dir/src.cxx.o
FAILED: CMakeFiles/cmTC_93b1f.dir/src.cxx.o 
/usr/bin/x86_64-pc-linux-gnu-g++ -DHAVE_CXX_FLAG_WTHREAD_SAFETY   -O2 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0  -std=c++11  -Wall  -Wextra  -Wshadow  -fstrict-aliasing  -Wno-deprecated-declarations  -Wstrict-aliasing  -Wthread-safety   -Wthread-safety -o CMakeFiles/cmTC_93b1f.dir/src.cxx.o -c /var/tmp/portage/media-sound/mixxx-2.3.1/work/mixxx-2.3.1_build/CMakeFiles/CMakeTmp/src.cxx
x86_64-pc-linux-gnu-g++: error: unrecognized command-line option '-Wthread-safety'
x86_64-pc-linux-gnu-g++: error: unrecognized command-line option '-Wthread-safety'
ninja: build stopped: subcommand failed.


Source file was:
int main() { return 0; }