public static int pthread_mutex_init(out pthread_mutex_t m, ref pthread_mutexattr_t ma) { return(0); }
public static int pthread_mutexattr_settype(ref pthread_mutexattr_t a, PTHREAD_MUTEX t) { return(0); }
public static int pthread_mutexattr_destroy(ref pthread_mutexattr_t a) { return(0); }
public static int pthread_mutexattr_init(ref pthread_mutexattr_t a) { return(0); }