-if(NOT HAVE_CLOCK_GETTIME)
- check_library_exists(rt clock_gettime "time.h" HAVE_CLOCK_GETTIME_RT)
- if(NOT HAVE_CLOCK_GETTIME_RT)
- check_library_exists(c clock_get_time "mach/time.h" HAVE_CLOCK_GET_TIME)
- if(NOT HAVE_CLOCK_GET_TIME)
- message(FATAL_ERROR "Didn't find clock_gettime() or clock_get_time!")
- endif()
- else()
- set(LIBRARIES ${LIBRARIES} rt)
- endif()
-endif()