__get_current_messages_locale
struct lc_messages_T *__get_current_messages_locale(locale_t);
ret = (char*) __get_current_messages_locale(loc)->yesexpr;
ret = (char*) __get_current_messages_locale(loc)->noexpr;
ret = (char*) __get_current_messages_locale(loc)->yesstr;
ret = (char*) __get_current_messages_locale(loc)->nostr;