(check_format_info): When we have INTEGER_TYPEs...

(check_format_info): When we have INTEGER_TYPEs, save result of
signed_type or unsigned_type for later comparison with the various
forms of char types.

From-SVN: r6146

gcc/c-common.c

@@ -901,8 +901,8 @@ check_format_info (info, params)
 	  && !(TREE_CODE (wanted_type) == INTEGER_TYPE
 	       && TREE_CODE (cur_type) == INTEGER_TYPE
 	       && (TREE_UNSIGNED (wanted_type)
-		   ? wanted_type == unsigned_type (cur_type)
-		   : wanted_type == signed_type (cur_type)))
+		   ? wanted_type == (cur_type = unsigned_type (cur_type))
+		   : wanted_type == (cur_type = signed_type (cur_type))))
 	  /* Likewise, "signed char", "unsigned char" and "char" are
 	     equivalent but the above test won't consider them equivalent.  */
 	  && ! (wanted_type == char_type_node