(decl_attributes): Chain multiple attributes correctly.

From-SVN: r11942

gcc/c-common.c

@@ -322,6 +322,8 @@ decl_attributes (node, attributes, prefix_attributes)
 	  if (! valid_machine_attribute (name, args, decl, type))
 	    warning ("`%s' attribute directive ignored",
 		     IDENTIFIER_POINTER (name));
+	  else if (decl != 0)
+	    type = TREE_TYPE (decl);
 	  continue;
 	}
       else if (attrtab[i].decl_req && decl == 0)