Performing C SOURCE FILE Test CC_HAS_OMINIMAL failed with the following output:
Change Dir: /home/buildroot/autobuild/instance-2/output-1/build/libmdbx-0.11.12/buildroot-build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/make -f Makefile cmTC_8da22/fast && make[1]: Entering directory '/home/buildroot/autobuild/instance-2/output-1/build/libmdbx-0.11.12/buildroot-build/CMakeFiles/CMakeTmp'
/usr/bin/make  -f CMakeFiles/cmTC_8da22.dir/build.make CMakeFiles/cmTC_8da22.dir/build
make[2]: Entering directory '/home/buildroot/autobuild/instance-2/output-1/build/libmdbx-0.11.12/buildroot-build/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_8da22.dir/src.c.o
/home/buildroot/autobuild/instance-2/output-1/host/bin/x86_64-buildroot-linux-uclibc-gcc --sysroot=/home/buildroot/autobuild/instance-2/output-1/host/x86_64-buildroot-linux-uclibc/sysroot -DCC_HAS_OMINIMAL  -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O3 -g0   -DNDEBUG   -Ominimal -o CMakeFiles/cmTC_8da22.dir/src.c.o -c /home/buildroot/autobuild/instance-2/output-1/build/libmdbx-0.11.12/buildroot-build/CMakeFiles/CMakeTmp/src.c
cc1: error: argument to '-O' should be a non-negative integer, 'g', 's' or 'fast'
CMakeFiles/cmTC_8da22.dir/build.make:77: recipe for target 'CMakeFiles/cmTC_8da22.dir/src.c.o' failed
make[2]: *** [CMakeFiles/cmTC_8da22.dir/src.c.o] Error 1
make[2]: Leaving directory '/home/buildroot/autobuild/instance-2/output-1/build/libmdbx-0.11.12/buildroot-build/CMakeFiles/CMakeTmp'
Makefile:127: recipe for target 'cmTC_8da22/fast' failed
make[1]: *** [cmTC_8da22/fast] Error 2
make[1]: Leaving directory '/home/buildroot/autobuild/instance-2/output-1/build/libmdbx-0.11.12/buildroot-build/CMakeFiles/CMakeTmp'


Source file was:
int main(void) { return 0; }
Performing C SOURCE FILE Test HAVE_OPENMP failed with the following output:
Change Dir: /home/buildroot/autobuild/instance-2/output-1/build/libmdbx-0.11.12/buildroot-build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/make -f Makefile cmTC_460bc/fast && make[1]: Entering directory '/home/buildroot/autobuild/instance-2/output-1/build/libmdbx-0.11.12/buildroot-build/CMakeFiles/CMakeTmp'
/usr/bin/make  -f CMakeFiles/cmTC_460bc.dir/build.make CMakeFiles/cmTC_460bc.dir/build
make[2]: Entering directory '/home/buildroot/autobuild/instance-2/output-1/build/libmdbx-0.11.12/buildroot-build/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_460bc.dir/src.c.o
/home/buildroot/autobuild/instance-2/output-1/host/bin/x86_64-buildroot-linux-uclibc-gcc --sysroot=/home/buildroot/autobuild/instance-2/output-1/host/x86_64-buildroot-linux-uclibc/sysroot -DHAVE_OPENMP  -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -O3 -g0 -fopenmp -Werror  -DNDEBUG -o CMakeFiles/cmTC_460bc.dir/src.c.o -c /home/buildroot/autobuild/instance-2/output-1/build/libmdbx-0.11.12/buildroot-build/CMakeFiles/CMakeTmp/src.c
/home/buildroot/autobuild/instance-2/output-1/build/libmdbx-0.11.12/buildroot-build/CMakeFiles/CMakeTmp/src.c: In function 'main':
/home/buildroot/autobuild/instance-2/output-1/build/libmdbx-0.11.12/buildroot-build/CMakeFiles/CMakeTmp/src.c:3:14: error: invalid branch to/from OpenMP structured block
    3 |       return 0;
      |              ^
CMakeFiles/cmTC_460bc.dir/build.make:77: recipe for target 'CMakeFiles/cmTC_460bc.dir/src.c.o' failed
make[2]: *** [CMakeFiles/cmTC_460bc.dir/src.c.o] Error 1
make[2]: Leaving directory '/home/buildroot/autobuild/instance-2/output-1/build/libmdbx-0.11.12/buildroot-build/CMakeFiles/CMakeTmp'
Makefile:127: recipe for target 'cmTC_460bc/fast' failed
make[1]: *** [cmTC_460bc/fast] Error 2
make[1]: Leaving directory '/home/buildroot/autobuild/instance-2/output-1/build/libmdbx-0.11.12/buildroot-build/CMakeFiles/CMakeTmp'


Source file was:
int main(void) {
      #pragma omp parallel
      return 0;
      }