cmake WINPR_HAVE_PTHREAD_MUTEX_TIMEDLOCK_LIBS examples

FreeRDP/FreeRDP winpr/CMakeLists.txt :256 

check_library_exists(pthreads pthread_mutex_timedlock "" WINPR_HAVE_PTHREAD_MUTEX_TIMEDLOCK_LIBS)

FreeRDP/FreeRDP winpr/CMakeLists.txt :270 

endif(WINPR_HAVE_PTHREAD_MUTEX_TIMEDLOCK_SYMBOL OR WINPR_HAVE_PTHREAD_MUTEX_TIMEDLOCK_LIB
        OR WINPR_HAVE_PTHREAD_MUTEX_TIMEDLOCK_LIBS
  )