On Wed, Feb 15, 2012 at 09:55:32PM +0000, James Fisher wrote:
I guess another thing I don't understand is: why is there both a version number and a hash? I'm told by Hackage that "Re-uploading a package with the same version number is not permitted" ( http://hackage.haskell.org/packages/upload.html), so how could I have a package with two different hashes? Unless one or both came from somewhere other than Hackage, perhaps?
Yet another thing I don't properly understand is the relationship between all these Haskell packaging organizations and programs. cabal seems to have some pseudo-official relationship with Hackage. And how do cabal and ghc-pkg interact? Where are things on my system apart from in ~/.cabal?
For answers to all these questions (and more), see http://www.vex.net/~trebla/haskell/sicp.xhtml -Brent