cmake HAVE_PTHREAD_GETCPUCLOCKID examples

SWI-Prolog/swipl-devel cmake/Config.cmake :307 

check_function_exists(pthread_getcpuclockid HAVE_PTHREAD_GETCPUCLOCKID)

alibaba/AliSQL configure.cmake :556 

CHECK_FUNCTION_EXISTS (pthread_getcpuclockid HAVE_PTHREAD_GETCPUCLOCKID)