cmake CMAKE_HAVE_SPROC_H examples

rxseger/rx_tools cmake/FindThreads.cmake :59 

CHECK_INCLUDE_FILES("sys/types.h;sys/prctl.h"  CMAKE_HAVE_SPROC_H)

CatxFish/obs-virtual-cam cmake/Modules/FindThreads.cmake :60 

check_include_files("sys/types.h;sys/prctl.h"  CMAKE_HAVE_SPROC_H)