Hi lists, I recently read Simon Peyton Jones' proposal: http://hackage.haskell.org/trac/ghc/wiki/GhcPackages and disagreed with some of the design decisions. (To be fair, the aspects I disagree with are shared with most or all of the other proposals) So I've put an alternative proposal here: http://hackage.haskell.org/trac/ghc/wiki/PackageMounting Discussion is welcome (but only on the libraries@ list, please). Hopefully we can weigh the benefits of each proposal, and reach an agreement and write up a more formal specification within the next few months or so provided that people decide that this is an extension we want to implement. Cheers, Frederik P.S. (I'm sorry that I missed Sven's earlier package mounting thread in July. But I hope the above article covers what my response would have been) -- http://ofb.net/~frederik/