Fix prev change; test of _STDDEF_H was backwards.

From-SVN: r2775

Fix prev change; test of _STDDEF_H was backwards.
From-SVN: r2775
3418a1da · Richard Stallman · 637c5064 · 3418a1da
Commit 3418a1da authored Nov 22, 1992 by Richard Stallman
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gcc/ginclude/stddef.h
+3 -2

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--- 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
+#ifdef _STDDEF_H /* This is a kludge.
-		     is when obstack.h wants just ptrdiff_t.  */
+		    _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