diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index c120788c8..3dfcf904d 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,7 @@
+2002-08-30  Corinna Vinschen  <corinna@vinschen.de>
+
+	* cygwin.din: Add more prototypes for new wchar functions in newlib.
+
 2002-08-30  Corinna Vinschen  <corinna@vinschen.de>
 
 	* cygwin.din: Add prototypes for new wchar functions in newlib.
diff --git a/winsup/cygwin/cygwin.din b/winsup/cygwin/cygwin.din
index e5b1b0619..9f9cd7f9b 100644
--- a/winsup/cygwin/cygwin.din
+++ b/winsup/cygwin/cygwin.din
@@ -1067,6 +1067,20 @@ wmemmove
 _wmemmove = wmemmove
 wmemset
 _wmemset = wmemset
+btowc
+_btowc = btowc
+wctob
+_wctob = wctob
+mbsinit
+_mbsinit = mbsinit
+mbrlen
+_mbrlen = mbrlen
+mbrtowc
+_mbrtowc = mbrtowc
+wcrtomb
+_wcrtomb = wcrtomb
+wcsrtombs
+_wcsrtombs = wcsrtombs
 wprintf
 _wprintf = wprintf
 memccpy