--- sml/trunk/ckit/src/parser/group.cm 2001/03/22 19:08:43 802 +++ sml/trunk/ckit/src/parser/group.cm 2001/03/22 19:30:19 803 @@ -33,6 +33,8 @@ (* pretty printer library *) pp-lib.cm #endif +#else +#error new CM required #endif (* configuration *)