Manpages of glibc-doc in Debian experimental

• pthread_atfork(3)
• pthread_cond_broadcast(3)
• pthread_cond_destroy(3)
• pthread_cond_init(3)
• pthread_cond_signal(3)
• pthread_cond_timedwait(3)
• pthread_cond_wait(3)
• pthread_condattr_destroy(3)
• pthread_condattr_init(3)
• pthread_getspecific(3)
• pthread_key_create(3)
• pthread_key_delete(3)
• pthread_mutex_destroy(3)
• pthread_mutex_init(3)
• pthread_mutex_lock(3)
• pthread_mutex_trylock(3)
• pthread_mutex_unlock(3)
• pthread_mutexattr_destroy(3)
• pthread_mutexattr_getkind_np(3)
• pthread_mutexattr_gettype(3)
• pthread_mutexattr_init(3)
• pthread_mutexattr_setkind_np(3)
• pthread_mutexattr_settype(3)
• pthread_once(3)
• pthread_setspecific(3)