cmake CMAKE_HAVE_PTHREAD_CREATE examples

rxseger/rx_tools cmake/FindThreads.cmake :140 

CHECK_LIBRARY_EXISTS(pthread pthread_create "" CMAKE_HAVE_PTHREAD_CREATE)

CatxFish/obs-virtual-cam cmake/Modules/FindThreads.cmake :131 

check_library_exists(pthread pthread_create "" CMAKE_HAVE_PTHREAD_CREATE)