--- gcc/c-decl.c~	2006-01-19 23:48:07.000000000 +0000
+++ gcc/c-decl.c	2006-08-15 21:43:43.000000000 +0100
@@ -1660,6 +1660,25 @@ merge_decls (tree newdecl, tree olddecl,
   if (TREE_DEPRECATED (newdecl))
     TREE_DEPRECATED (olddecl) = 1;
 
+  if (TREE_CODE (newdecl) == FUNCTION_DECL)
+    {
+      struct cgraph_node *n = cgraph_node (newdecl);
+      if (n->local.externally_visible)
+	{
+	   struct cgraph_node *o = cgraph_node (olddecl);
+	   o->local.externally_visible = 1;
+	}
+    }
+  else if (TREE_CODE (newdecl) == VAR_DECL)
+    {
+      struct cgraph_varpool_node *n = cgraph_varpool_node (newdecl);
+      if (n->externally_visible)
+	{
+	  struct cgraph_varpool_node *o = cgraph_varpool_node (olddecl);
+	  o->externally_visible = true;
+	}
+    }
+
   /* Keep source location of definition rather than declaration and of
      prototype rather than non-prototype unless that prototype is
      built-in.  */