cmake HAVE_POSIX_SEMAPHORES examples

SsageParuders/Android_Native_Surface my_android_opencv/3rdparty/openexr/CMakeLists.txt :50 

check_include_file(semaphore.h HAVE_POSIX_SEMAPHORES)

joachimBurket/esp32-opencv 3rdparty/openexr/CMakeLists.txt :50 

check_include_file(semaphore.h HAVE_POSIX_SEMAPHORES)

plumonito/dtslam 3rdparty/opencv-git/3rdparty/openexr/CMakeLists.txt :11 

check_include_file(semaphore.h HAVE_POSIX_SEMAPHORES)