#include int main(void) { int retval = 0; sem_t *id; id = sem_open(TEST_PATH, O_CREAT, 0777, 1); if (id == SEM_FAILED) { perror("sem_open"); return 1; } sem_close(id); if (sem_unlink(TEST_PATH) < 0) { perror("sem_unlink"); return 1; } retval = sem_open_should_fail(TEST_PATH, O_RDONLY, 0777, 1, ENOENT); return retval; }