On Sun, 16 Jun 2013 14:57:32 -0700 Zac Medico wrote: > It's actually not bad, since all of the subslot rebuilds are triggered > in a single backtracking run. Anyway, I welcome having people work on > competing package managers, trying to do all of this stuff more > efficiently. :-) I'm starting to think we're all doing this wrong by going for a naive "single choice then backtrack" model, fully consistent or otherwise. Perhaps we're going to have to bite the bullet and go for stronger propagation models and one of the many better alternatives to backtracking... -- Ciaran McCreesh