debug exc

C/init.c

@@ -165,8 +165,10 @@ The following is the list of the declarations of the predefined operators:
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 :-op(1200,fx,['?-', ':-']).
 :-op(1200,xfx,[':-','-->']).
-:-op(1150,fx,[block,dynamic,mode,public,multifile,meta_predicate,
-              sequential,table,initialization]).
+:-op(1150,fx,[block,
+	discontiguous,dynamic,
+        initialization,mode,multifile,meta_predicate,
+              public,sequential,table]).
 :-op(1100,xfy,[';','|']).
 :-op(1050,xfy,->).
 :-op(1000,xfy,',').