diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 24bd69561..c703056b3 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,7 @@
+2008-07-22  Corinna Vinschen  <corinna@vinschen.de>
+
+	* include/ctype.h: Declare __ctype_ptr__ to keep newlib build happy.
+
 2008-07-21  Corinna Vinschen  <corinna@vinschen.de>
 
 	* Makefile.in (cygcheck.exe): Link against ntdll.
diff --git a/winsup/cygwin/include/ctype.h b/winsup/cygwin/include/ctype.h
index 05c950322..343bafbd5 100644
--- a/winsup/cygwin/include/ctype.h
+++ b/winsup/cygwin/include/ctype.h
@@ -40,6 +40,9 @@ int __cdecl _toupper(int);
 
 #if defined (__INSIDE_CYGWIN__) || defined (_COMPILING_NEWLIB)
 extern const char _ctype_[];
+#ifdef _COMPILING_NEWLIB
+extern const char *__ctype_ptr__;
+#endif
 #else
 extern const __declspec(dllimport) char _ctype_[];
 #endif