Add missing wcsdup() prototype to <wchar.h>.

This allows C++ programs to access this function at all.

Reported-by: Pierre Abbat <phma@phma.optus.nu>

diff --git a/include/wchar.h b/include/wchar.h
index a02f98d..770332b 100644 (file)
--- a/include/wchar.h
+++ b/include/wchar.h
@@ -205,6 +205,10 @@ int        vswscanf(const wchar_t * __restrict, const wchar_t * __restrict,
                 __va_list);
 int    vwscanf(const wchar_t * __restrict, __va_list);
 #endif
+
+#if __POSIX_VISIBLE >= 200809 || __BSD_VISIBLE
+wchar_t        *wcsdup(const wchar_t *);
+#endif
 __END_DECLS
 
 #define getwc(f) fgetwc(f)