PTHREAD_MUTEX_ROBUST
#define PTHREAD_MUTEX_ROBUST_NP PTHREAD_MUTEX_ROBUST
(robust != PTHREAD_MUTEX_ROBUST && robust != PTHREAD_MUTEX_STALLED))
if (((type & PTHREAD_MUTEX_ROBUST) != 0) &&
static const int check_robust[] = { PTHREAD_MUTEX_STALLED, PTHREAD_MUTEX_ROBUST,