Coordination mishap: these are defined just below for all platforms.

Author: millenomi

CoreFoundation/Base.subproj/CFInternal.h

@@ -576,12 +576,10 @@ typedef pthread_mutex_t * os_unfair_lock_t;
 CF_INLINE void os_unfair_lock_lock(os_unfair_lock_t lock) { pthread_mutex_lock(lock); }
 CF_INLINE void os_unfair_lock_unlock(os_unfair_lock_t lock) { pthread_mutex_unlock(lock); }
 #elif defined(_WIN32)
-#define OS_UNFAIR_LOCK_DATA_SYNCHRONIZATION 0
 #define OS_UNFAIR_LOCK_INIT CFLockInit
 #define os_unfair_lock CFLock_t
 #define os_unfair_lock_t CFLock_t *
 #define os_unfair_lock_lock __CFLock
-#define os_unfair_lock_lock_with_options(lock, options) __CFLock(lock)
 #define os_unfair_lock_unlock __CFUnlock
 #endif // __has_include(<os/lock.h>)