missing prototype for wcscoll (stub)
diff --git a/include/wchar.h b/include/wchar.h
index 74f830d..f536210 100644
--- a/include/wchar.h
+++ b/include/wchar.h
@@ -47,6 +47,7 @@
 int wcscmp (const wchar_t *, const wchar_t *);
 int wcsncmp (const wchar_t *, const wchar_t *, size_t);
 
+int wcscoll(const wchar_t *, const wchar_t *);
 size_t wcsxfrm (wchar_t *, const wchar_t *, size_t n);
 
 wchar_t *wcschr (const wchar_t *, wchar_t);