percona/percona-server
extra/curl/curl-8.14.1/CMake/OtherTests.cmake
:125
check_c_source_compiles("${_source_epilogue}
int main(void)
{
#if defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200809L)
#elif defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE >= 700)
#else
#error force compilation error
#endif
return 0;
}" HAVE_H_ERRNO_SBS_ISSUE_7)