_Tthr_mutex_consistent
[PJT_MUTEX_CONSISTENT] = {DUAL_ENTRY(_Tthr_mutex_consistent)},
__weak_reference(_Tthr_mutex_consistent, pthread_mutex_consistent);
__weak_reference(_Tthr_mutex_consistent, _pthread_mutex_consistent);
__strong_reference(_Tthr_mutex_consistent, __pthread_mutex_consistent);
int _Tthr_mutex_consistent(pthread_mutex_t *);