fix testsuite/48506

Submitted by Mike Stump on April 9, 2011, midnight


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State New
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Mike Stump April 9, 2011, midnight
I've checked in this to avoid problems with ports that default to -fno-common.  I've also checked it into 4.6.x.
PR testsuite/48506
	* gcc.dg/tree-ssa/ssa-ccp-17.c: Robustify against ports that
	default to fno-common.

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Index: gcc.dg/tree-ssa/ssa-ccp-17.c
--- gcc.dg/tree-ssa/ssa-ccp-17.c	(revision 172125)
+++ gcc.dg/tree-ssa/ssa-ccp-17.c	(working copy)
@@ -18,7 +18,7 @@ 
   return ((struct Foo *)p)->i;
-const struct Foo g;
+extern const struct Foo g;
 int foobar(void)