strxfrm_l
size_t strxfrm_l(char * __restrict, const char * __restrict, size_t,
__weak_alias(strxfrm_l, _strxfrm_l)
strxfrm_l(char *dst, const char *src, size_t n, locale_t loc)
return strxfrm_l(dst, src, n, _current_locale());