Ben.Dependencies
val get_dep_graph :
(Package.source, Package.source Package.t) Package.Map.t ->
(Package.binary, Package.source Package.Name.t) Package.Map.t ->
(Package.source, Package.source Package.Set.t) Package.Map.t
val topo_split :
(Package.source, Package.source Package.Set.t) Package.Map.t ->
Package.source Package.Name.t list list