Hello, Hackage accepts source packages only anyway. Why would anyone upload propertiary code and risk it being stolen? Noone uploads non-free software to Hackage, it's safe to assume noone will ever do (except perhaps as an act of trolling, and such packages could be just flat out removed), so why fix it when it isn't broken? Also, as it was already pointed out by Mike Meyer, a list of pre-approved licenses doesn't solve the problem of compatibility and permission to actually build and distribute binaries at all, and it would be better solved by providing some tools to view and check licenses of the transitive closure of dependencies of a package (which would, incidentally, make it easy to weed out non-free packages too, for anyone who desires so) Best regards, Marcin Mrotek