_ARC4_UNLOCK
#define _ARC4_UNLOCK() do {} while (0)
#define _ARC4_UNLOCK() \
#define _ARC4_UNLOCK() pthread_mutex_unlock(&arc4random_mtx)
#define _ARC4_UNLOCK() pthread_mutex_unlock(&arc4random_mtx)
#define _ARC4_UNLOCK() pthread_mutex_unlock(&arc4random_mtx)
#define _ARC4_UNLOCK() pthread_mutex_unlock(&arc4random_mtx)
#define _ARC4_UNLOCK() pthread_mutex_unlock(&arc4random_mtx)
#define _ARC4_UNLOCK() pthread_mutex_unlock(&arc4random_mtx)
#define _ARC4_UNLOCK() pthread_mutex_unlock(&arc4random_mtx)
#define _ARC4_UNLOCK() ReleaseMutex(arc4random_mtx)