test_run
test_run(0, NULL, NULL, NULL);
extern void test_run(int nthr, test_func_t, void *arg, const char *, ...);
test_run(NUMTHR, testlocale_thr_one, NULL, "newlocale_threaded");
test_run(NUMTHR, test_wcsrtombs_thr_work, NULL, "wcsrtombs_threaded");