Performing C SOURCE FILE Test HAVE_ST_BIRTHTIME failed with the following output:
Change Dir: /home/dawncrow/buildroot-test/scripts/instance-0/output/build/taskd-1.1.0/CMakeFiles/CMakeTmp

Run Build Command:"/usr/bin/make" "cmTC_cfff0/fast"
make[1]: Entering directory `/home/dawncrow/buildroot-test/scripts/instance-0/output/build/taskd-1.1.0/CMakeFiles/CMakeTmp'
/usr/bin/make -f CMakeFiles/cmTC_cfff0.dir/build.make CMakeFiles/cmTC_cfff0.dir/build
make[2]: Entering directory `/home/dawncrow/buildroot-test/scripts/instance-0/output/build/taskd-1.1.0/CMakeFiles/CMakeTmp'
Building C object CMakeFiles/cmTC_cfff0.dir/src.c.o
/home/dawncrow/buildroot-test/scripts/instance-0/output/host/bin/x86_64-linux-gcc --sysroot=/home/dawncrow/buildroot-test/scripts/instance-0/output/host/x86_64-buildroot-linux-uclibc/sysroot  -I/home/dawncrow/buildroot-test/scripts/instance-0/output/host/x86_64-buildroot-linux-uclibc/sysroot/usr/include/uuid  -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -DHAVE_ST_BIRTHTIME  -DNDEBUG   -o CMakeFiles/cmTC_cfff0.dir/src.c.o   -c /home/dawncrow/buildroot-test/scripts/instance-0/output/build/taskd-1.1.0/CMakeFiles/CMakeTmp/src.c
/home/dawncrow/buildroot-test/scripts/instance-0/output/build/taskd-1.1.0/CMakeFiles/CMakeTmp/src.c: In function 'main':
/home/dawncrow/buildroot-test/scripts/instance-0/output/build/taskd-1.1.0/CMakeFiles/CMakeTmp/src.c:7:35: error: 'struct stat' has no member named 'st_birthtime'; did you mean 'st_blksize'?
    (void)sizeof(((struct stat *)0)->st_birthtime);
                                   ^~
make[2]: *** [CMakeFiles/cmTC_cfff0.dir/src.c.o] Error 1
make[2]: Leaving directory `/home/dawncrow/buildroot-test/scripts/instance-0/output/build/taskd-1.1.0/CMakeFiles/CMakeTmp'
make[1]: *** [cmTC_cfff0/fast] Error 2
make[1]: Leaving directory `/home/dawncrow/buildroot-test/scripts/instance-0/output/build/taskd-1.1.0/CMakeFiles/CMakeTmp'

Source file was:

#include <sys/types.h>
#include <sys/stat.h>

int main()
{
   (void)sizeof(((struct stat *)0)->st_birthtime);
   return 0;
}