X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fcomponents%2Fng_library%2FnCicLibrary.ml;h=0620a6233dcdff5279e11b31e5b3762ad873ce68;hb=4738096e93f997fb36d35dd723b87682a2f6de90;hp=b63fe6a71263ec1e31e1bd7f555bc10fed89ab66;hpb=cbd81dcc1ca77e8bbd0ca5262ffbb1a09d2a5508;p=helm.git

diff --git a/matita/components/ng_library/nCicLibrary.ml b/matita/components/ng_library/nCicLibrary.ml
index b63fe6a71..0620a6233 100644
--- a/matita/components/ng_library/nCicLibrary.ml
+++ b/matita/components/ng_library/nCicLibrary.ml
@@ -260,7 +260,9 @@ module Serializer(D: sig type dumpable_s = private #dumpable_status end) =
    let ch = open_out (ng_path_of_baseuri baseuri) in
    Marshal.to_channel ch (magic,(status#dump.dependencies,status#dump.objs)) [];
    close_out ch;
+(*
    remove_objects ~baseuri; (* FG: we remove the old objects before putting the new ones*)
+*)
    List.iter
     (function 
      | `Obj (uri,obj) ->
@@ -370,7 +372,7 @@ let add_obj status ((u,_,_,_,_) as orig_obj) =
   status#set_timestamp (!storage,!local_aliases)
 ;;
 
-let add_constraint status u1 u2 = 
+let add_constraint status ~acyclic u1 u2 = 
   if
    List.exists
     (function `Constr (u1',u2') when u1=u1' && u2=u2' -> true | _ -> false)
@@ -378,7 +380,7 @@ let add_constraint status u1 u2 =
   then
    (*CSC: raise an exception here! *)
    (prerr_endline "CANNOT ADD A CONSTRAINT TWICE"; assert false);
-  NCicEnvironment.add_lt_constraint u1 u2;
+  NCicEnvironment.add_lt_constraint ~acyclic u1 u2;
   storage := (`Constr (u1,u2)) :: !storage;
   status#set_timestamp (!storage,!local_aliases)
 ;;