Simon Marlow wrote:
Isaac Jones wrote:
I think that, as far as Hackage (not cabal-install) is concerned, the main usibility points are:
1) getting more packages into it 2) making sure that all the packages build together, and 3) searching
Ah yes, there was the idea of freezing a collection of packages that build together too.
One related problem is that .cabal files don't allow you to describe the dependencies well enough. For example, many packages currently in Hackage have fps as a dependency. This is no good with base 2.0, which includes what used to be fps. But removing the fps dep will break building with base 1.0 + fps. Some possible solutions: - Allow boolean expressions not only of versions, but of packages as well. E.g.: Build-depends: base >= 2.0 || (base < 2.0 && fps >= 0.7) - Have one Hackage repository for each Haskell implementation version, where the dependencies make sense together. - Configurations? /Björn