__pthread_mutex_setspinloops_np
__weak_reference(__pthread_mutex_setspinloops_np, pthread_mutex_setspinloops_np);
__strong_reference(__pthread_mutex_setspinloops_np, _pthread_mutex_setspinloops_np);
int __pthread_mutex_setspinloops_np(pthread_mutex_t *mutex, int count);