re PR middle-end/34973 (Wno-strict-aliasing is not working)

2008-05-03  Richard Guenther  <rguenther@suse.de>

	PR middle-end/34973
	* opts.c (set_Wstrict_aliasing): Handle the turn-off case.

From-SVN: r134903

gcc/ChangeLog

+2008-05-03  Richard Guenther  <rguenther@suse.de>
+
+	PR middle-end/34973
+	* opts.c (set_Wstrict_aliasing): Handle the turn-off case.
+
 2008-05-02  David S. Miller  <davem@davemloft.net>
 
 	* config.gcc (need_64bit_hwint): Document libcpp dependency.

gcc/opts.c

@@ -1982,6 +1982,8 @@ set_Wstrict_aliasing (int onoff)
   gcc_assert (onoff == 0 || onoff == 1);
   if (onoff != 0)
     warn_strict_aliasing = 3;
+  else
+    warn_strict_aliasing = 0;
 }
 
 /* The following routines are useful in setting all the flags that