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Re:Building a Better Custom Haskell Prelude by mcbuilder on Friday April 08, 2016 @12:28PM (#11455897)
That was a problem commonly called 'cabal hell'. You can alternatively use the stack build tool, https://github.com/commercialhaskell/stack, which works by fixing package versions against stackage snapshots.

Before using stack I was always afraid to come back to a Haskell project after a few months, since using stack that's not a problem. Also, you don't have to worry about different machines, because stack is ensuring that you have the pretty much same build environment (at least the Haskell packages will have the exact same version).

Stack also recently added support for using Nix to solve the problem fixing non-Haskell dependencies for a project.

Re:Building a Better Custom Haskell Prelude by baldfat on Friday April 08, 2016 @01:53PM (#11456530)
Well after the love affair I have with Racket wears off I just might try to start back up in Haskell. Thanks! Love the idea of using nix.
Re:Building a Better Custom Haskell Prelude by rspeer on Friday April 08, 2016 @02:23PM (#11456763)
This looks so much better than Cabal.

Why have I never heard about it in all the guides and StackOverflow answers I've had to search through when trying to escape Cabal hell?

Re:Building a Better Custom Haskell Prelude by koloron on Friday April 08, 2016 @02:44PM (#11456895)
The project has existed only since last summer.