-int _GBK_init(_RuneLocale *);
-size_t _GBK_mbrtowc(wchar_t * __restrict, const char * __restrict, size_t,
- mbstate_t * __restrict);
-int _GBK_mbsinit(const mbstate_t *);
-size_t _GBK_wcrtomb(char * __restrict, wchar_t, mbstate_t * __restrict);
+static size_t _GBK_mbrtowc(wchar_t * __restrict, const char * __restrict,
+ size_t, mbstate_t * __restrict, locale_t);
+static int _GBK_mbsinit(const mbstate_t *, locale_t);
+static size_t _GBK_wcrtomb(char * __restrict, wchar_t,
+ mbstate_t * __restrict, locale_t);