_thr_cond_broadcast
__weak_reference(_thr_cond_broadcast, pthread_cond_broadcast);
__weak_reference(_thr_cond_broadcast, _pthread_cond_broadcast);
[PJT_COND_BROADCAST] = {DUAL_ENTRY(_thr_cond_broadcast)},
int _thr_cond_broadcast(pthread_cond_t * cond);