-#elif defined(USE_APPLE_MACH)
- /* The version that should be used, if it was cancelable */
- pthread_once(&mtime_timebase_info_once, mtime_init_timebase);
- uint64_t mach_time = date * 1000 * mtime_timebase_info.denom / mtime_timebase_info.numer;
- mach_wait_until(mach_time);
-