re PR target/43888 (FAIL: gcc.dg/alias-7.c execution test)

	PR target/43888
	* config/i386/winnt.c (i386_pe_binds_local_p): Tweak weak symbol
	handling to still return true for x64 targets.

From-SVN: r159111

gcc/ChangeLog

+2010-05-06  Dave Korn  <dave.korn.cygwin@gmail.com>
+
+	PR target/43888
+	* config/i386/winnt.c (i386_pe_binds_local_p): Tweak weak symbol
+	handling to still return true for x64 targets.
+
 2010-05-06  Maxim Kuvyrkov  <maxim@codesourcery.com>
 
 	* config/m68k/uclinux.h (LIB_SPEC): Bring in sync with config/linux.h.

gcc/config/i386/winnt.c

@@ -324,7 +324,10 @@ i386_pe_binds_local_p (const_tree exp)
   /* Or a weak one, now that they are supported.  */
   if ((TREE_CODE (exp) == VAR_DECL || TREE_CODE (exp) == FUNCTION_DECL)
       && DECL_WEAK (exp))
-    return false;
+    /* But x64 gets confused and attempts to use unsupported GOTPCREL
+       relocations if we tell it the truth, so we still return true in
+       that case until the deeper problem can be fixed.  */
+    return (TARGET_64BIT && DEFAULT_ABI == MS_ABI);
 
   return true;
 }