-#if defined(SWITCH_OPTION_OSLOCK_DEPRESS) && !(TARGET_IPHONE_SIMULATOR && \
- IPHONE_SIMULATOR_HOST_MIN_VERSION_REQUIRED < 1090)
-#define OS_YIELD_THREAD_SWITCH_OPTION SWITCH_OPTION_OSLOCK_DEPRESS
-#else
-#define OS_YIELD_THREAD_SWITCH_OPTION SWITCH_OPTION_DEPRESS
-#endif