184 #define	rwlock_init(l, a)	__libc_rwlock_init((l), (a))  argument
185 #define	rwlock_rdlock(l)	__libc_rwlock_rdlock((l))  argument
186 #define	rwlock_wrlock(l)	__libc_rwlock_wrlock((l))  argument
187 #define	rwlock_tryrdlock(l)	__libc_rwlock_tryrdlock((l))  argument
188 #define	rwlock_trywrlock(l)	__libc_rwlock_trywrlock((l))  argument
189 #define	rwlock_unlock(l)	__libc_rwlock_unlock((l))  argument
190 #define	rwlock_destroy(l)	__libc_rwlock_destroy((l))  argument
247 #define	rwlock_init(l, a)
248 #define	rwlock_rdlock(l)
249 #define	rwlock_wrlock(l)
250 #define	rwlock_tryrdlock(l)
251 #define	rwlock_trywrlock(l)
252 #define	rwlock_unlock(l)
253 #define	rwlock_destroy(l)