[v3] atomics

[Andreas Schwab]

Benjamin Kosnik <bkoz@redhat.com> writes:

> I added a configure-time check for standard layout support, in
> GLIBCXX_CHECK_STANDARD_LAYOUT and the associated

This will always fail, even when gcc grows support for it, because it
redefines main.

Committed as obvious.

Andreas.

2008-09-09  Andreas Schwab  <schwab@suse.de>

	* acinclude.m4 (GLIBCXX_CHECK_STANDARD_LAYOUT): Fix compile check
	not to redefine main.
        * configure: Regenerate.

Index: libstdc++-v3/acinclude.m4
===================================================================
--- libstdc++-v3/acinclude.m4	(revision 140137)
+++ libstdc++-v3/acinclude.m4	(working copy)
@@ -1664,14 +1664,9 @@ AC_DEFUN([GLIBCXX_CHECK_STANDARD_LAYOUT]
 		    private:	    
   		    b& operator=(const b&);
   		    b(const b&);
-		    };
-
-		    int main()
-		    {
-		      b tst1 = { false };
-		       return 0;
-		    }],,
-             [ac_standard_layout=yes], [ac_standard_layout=no])
+		    };],
+		 [b tst1 = { false };],
+		 [ac_standard_layout=yes], [ac_standard_layout=no])
 
   CXXFLAGS="$ac_save_CXXFLAGS"
   AC_LANG_RESTORE

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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