_thr_mutexattr_init
[PJT_MUTEXATTR_INIT] = {DUAL_ENTRY(_thr_mutexattr_init)},
__weak_reference(_thr_mutexattr_init, pthread_mutexattr_init);
__weak_reference(_thr_mutexattr_init, _pthread_mutexattr_init);
int _thr_mutexattr_init(pthread_mutexattr_t *);