qsortp
qsortp(XPptrv(w), (size_t) nwords, xstrcmp);
qsortp(XPptrv(*wp) + oldsize, (size_t)(XPsize(*wp) - oldsize),
qsortp((void **) &argv[go.optind], (size_t) (i - go.optind),
void qsortp(void **, size_t, int (*)(const void *, const void *));
qsortp((void**)p, (size_t)i, tnamecmp);