#include "pthread_impl.h"
#include <threads.h>

int __pthread_mutex_unlock(pthread_mutex_t *);

int (mtx_unlock)(mtx_t *mtx) {
	/* In the best of all worlds this is a tail call. */
	int ret = __pthread_mutex_unlock(mtx);
	/* In case of UB may also return EPERM. */
	return ret ? thrd_error : thrd_success;
}