_pthread_create
#define pthread_create _pthread_create
return (&_pthread_create != NULL);
ret = _pthread_create(&tn->tn_thread, &sigev_default_attr,
ret = _pthread_create(&td, &sn->sn_attr, worker_routine, sn);
__weak_reference(_pthread_create, pthread_create);
STATIC_LIB_REQUIRE(_pthread_create);