Performing C++ SOURCE FILE Test HAVE_FLAG_-Wheader-guard failed with the following output:
Change Dir: /var/tmp/portage/dev-libs/stp-2.3.3/work/stp-2.3.3_build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_2d3b2 && [1/2] Building CXX object CMakeFiles/cmTC_2d3b2.dir/src.cxx.o
FAILED: CMakeFiles/cmTC_2d3b2.dir/src.cxx.o 
/usr/bin/x86_64-pc-linux-gnu-g++    -O2 -pipe -march=native -fno-diagnostics-color  -falign-functions=32:25:16 -Wall -Wextra -Wunused -pedantic -Wsign-compare -fno-omit-frame-pointer -Wtype-limits -Wuninitialized -Wno-deprecated -Wstrict-aliasing -Wpointer-arith    -DHAVE_FLAG_-Wheader-guard -Wheader-guard -o CMakeFiles/cmTC_2d3b2.dir/src.cxx.o -c src.cxx
x86_64-pc-linux-gnu-g++: error: unrecognized command-line option '-Wheader-guard'
ninja: build stopped: subcommand failed.


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