Determining if the pthread_create exist failed with the following output:
Change Dir: /usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/gmake" "cmTC_c4ec3/fast"
gmake[1]: Entering directory `/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp'
/usr/bin/gmake -f CMakeFiles/cmTC_c4ec3.dir/build.make CMakeFiles/cmTC_c4ec3.dir/build
gmake[2]: Entering directory `/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_c4ec3.dir/CheckSymbolExists.c.o
/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/host/bin/x86_64-ctng_locales-linux-gnu-gcc --sysroot=/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/host/x86_64-buildroot-linux-gnu/sysroot   -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os   -DNDEBUG   -o CMakeFiles/cmTC_c4ec3.dir/CheckSymbolExists.c.o   -c /usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp/CheckSymbolExists.c
Linking C executable cmTC_c4ec3
/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/host/bin/cmake -E cmake_link_script CMakeFiles/cmTC_c4ec3.dir/link.txt --verbose=1
/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/host/bin/x86_64-ctng_locales-linux-gnu-gcc --sysroot=/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/host/x86_64-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os   -DNDEBUG    -rdynamic CMakeFiles/cmTC_c4ec3.dir/CheckSymbolExists.c.o  -o cmTC_c4ec3 
CMakeFiles/cmTC_c4ec3.dir/CheckSymbolExists.c.o: In function `main':
CheckSymbolExists.c:(.text.startup+0x6): undefined reference to `pthread_create'
collect2: error: ld returned 1 exit status
gmake[2]: *** [cmTC_c4ec3] Error 1
gmake[2]: Leaving directory `/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp'
gmake[1]: *** [cmTC_c4ec3/fast] Error 2
gmake[1]: Leaving directory `/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp'

File /usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp/CheckSymbolExists.c:
/* */
#include <pthread.h>

int main(int argc, char** argv)
{
  (void)argv;
#ifndef pthread_create
  return ((int*)(&pthread_create))[argc];
#else
  (void)argc;
  return 0;
#endif
}

Determining if the function pthread_create exists in the pthreads failed with the following output:
Change Dir: /usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/gmake" "cmTC_4722d/fast"
gmake[1]: Entering directory `/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp'
/usr/bin/gmake -f CMakeFiles/cmTC_4722d.dir/build.make CMakeFiles/cmTC_4722d.dir/build
gmake[2]: Entering directory `/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_4722d.dir/CheckFunctionExists.c.o
/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/host/bin/x86_64-ctng_locales-linux-gnu-gcc --sysroot=/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/host/x86_64-buildroot-linux-gnu/sysroot   -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -DCHECK_FUNCTION_EXISTS=pthread_create  -DNDEBUG   -o CMakeFiles/cmTC_4722d.dir/CheckFunctionExists.c.o   -c /usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/host/share/cmake-3.8/Modules/CheckFunctionExists.c
Linking C executable cmTC_4722d
/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/host/bin/cmake -E cmake_link_script CMakeFiles/cmTC_4722d.dir/link.txt --verbose=1
/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/host/bin/x86_64-ctng_locales-linux-gnu-gcc --sysroot=/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/host/x86_64-buildroot-linux-gnu/sysroot -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -DCHECK_FUNCTION_EXISTS=pthread_create  -DNDEBUG    -rdynamic CMakeFiles/cmTC_4722d.dir/CheckFunctionExists.c.o  -o cmTC_4722d -lpthreads 
/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/host/opt/ext-toolchain/bin/../lib/gcc/x86_64-ctng_locales-linux-gnu/4.8.2/../../../../x86_64-ctng_locales-linux-gnu/bin/ld: cannot find -lpthreads
collect2: error: ld returned 1 exit status
gmake[2]: *** [cmTC_4722d] Error 1
gmake[2]: Leaving directory `/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp'
gmake[1]: *** [cmTC_4722d/fast] Error 2
gmake[1]: Leaving directory `/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp'


Performing C++ SOURCE FILE Test HAVE_MACH_ABSOLUTE_TIME failed with the following output:
Change Dir: /usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/gmake" "cmTC_66429/fast"
gmake[1]: Entering directory `/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp'
/usr/bin/gmake -f CMakeFiles/cmTC_66429.dir/build.make CMakeFiles/cmTC_66429.dir/build
gmake[2]: Entering directory `/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp'
Building CXX object CMakeFiles/cmTC_66429.dir/src.cxx.o
/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/host/bin/x86_64-ctng_locales-linux-gnu-g++ --sysroot=/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/host/x86_64-buildroot-linux-gnu/sysroot    -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -DHAVE_MACH_ABSOLUTE_TIME  -DNDEBUG   -o CMakeFiles/cmTC_66429.dir/src.cxx.o -c /usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp/src.cxx
/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp/src.cxx:2:32: fatal error: mach/mach_time.h: No such file or directory
     #include <mach/mach_time.h>
                                ^
compilation terminated.
gmake[2]: *** [CMakeFiles/cmTC_66429.dir/src.cxx.o] Error 1
gmake[2]: Leaving directory `/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp'
gmake[1]: *** [cmTC_66429/fast] Error 2
gmake[1]: Leaving directory `/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp'

Source file was:

    #include <mach/mach_time.h>
    int main(){
        mach_timebase_info_data_t info;
        mach_timebase_info(&info);
        mach_absolute_time();
        return 0;
    }
    
Performing C++ SOURCE FILE Test HAVE_QUERY_PERFORMANCE_COUNTER failed with the following output:
Change Dir: /usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/gmake" "cmTC_f779d/fast"
gmake[1]: Entering directory `/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp'
/usr/bin/gmake -f CMakeFiles/cmTC_f779d.dir/build.make CMakeFiles/cmTC_f779d.dir/build
gmake[2]: Entering directory `/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp'
Building CXX object CMakeFiles/cmTC_f779d.dir/src.cxx.o
/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/host/bin/x86_64-ctng_locales-linux-gnu-g++ --sysroot=/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/host/x86_64-buildroot-linux-gnu/sysroot    -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -DHAVE_QUERY_PERFORMANCE_COUNTER  -DNDEBUG   -o CMakeFiles/cmTC_f779d.dir/src.cxx.o -c /usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp/src.cxx
/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp/src.cxx:2:25: fatal error: Windows.h: No such file or directory
     #include <Windows.h>
                         ^
compilation terminated.
gmake[2]: *** [CMakeFiles/cmTC_f779d.dir/src.cxx.o] Error 1
gmake[2]: Leaving directory `/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp'
gmake[1]: *** [cmTC_f779d/fast] Error 2
gmake[1]: Leaving directory `/usr/lfs/v0/rc-buildroot-test/scripts/instance-2/output/build/gr-osmosdr-164a09fc11cec2d8b15b38e8b512fa542d6cecc7/buildroot-build/CMakeFiles/CMakeTmp'

Source file was:

    #include <Windows.h>
    int main(){
        LARGE_INTEGER value;
        QueryPerformanceCounter(&value);
        QueryPerformanceFrequency(&value);
        return 0;
    }