From 3418a1da8baf5d6c8d86d9853a5cecaefd734eb1 Mon Sep 17 00:00:00 2001
From: Richard Stallman <rms@gnu.org>
Date: Sun, 22 Nov 1992 22:04:25 +0000
Subject: [PATCH] Fix prev change; test of _STDDEF_H was backwards.

From-SVN: r2775
---
 gcc/ginclude/stddef.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/gcc/ginclude/stddef.h b/gcc/ginclude/stddef.h
index 774462cdbc2..4601547fcc2 100644
--- a/gcc/ginclude/stddef.h
+++ b/gcc/ginclude/stddef.h
@@ -170,8 +170,9 @@ typedef __WCHAR_TYPE__ wchar_t;
     header files do that.  */
 #ifdef _ANSI_H_
 #undef _PTRDIFF_T_
-#ifndef _STDDEF_H /* This is a kludge.  The case where this happens
-		     is when obstack.h wants just ptrdiff_t.  */
+#ifdef _STDDEF_H /* This is a kludge.
+		    _STDDEF_H is defined when we are using the whole file,
+		    undefined when obstack.h wants just ptrdiff_t.  */
 #undef _SIZE_T_
 #undef _WCHAR_T_
 #endif
-- 
2.30.2