diff --git a/libc/include/wchar.h b/libc/include/wchar.h
index d2d022a..3dadc98 100644
--- a/libc/include/wchar.h
+++ b/libc/include/wchar.h
@@ -144,6 +144,11 @@
 extern int               wprintf(const wchar_t *, ...);
 extern int               wscanf(const wchar_t *, ...);
 
+/* No really supported.  These are just for making libstdc++-v3 happy.  */
+typedef void *wctrans_t;
+extern wint_t		 towctrans(wint_t, wctrans_t);
+extern wctrans_t	 wctrans (const char *);
+
 __END_DECLS
 
 #endif /* _WCHAR_H_ */