sig
type package = {
installed : OpamCudf.Set.t;
removed : OpamCudf.Set.t;
reinstalled : OpamCudf.Set.t;
}
type universe = (Cudf_types.pkgname, OpamCudf.Diff.package) Hashtbl.t
val diff : Cudf.universe -> Cudf.universe -> OpamCudf.Diff.universe
end