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haskellPackages.llvm-hs doesn't pick up llvm-hs-pure dependency #26226

Open spacekitteh opened 7 years ago

spacekitteh commented 7 years ago

Issue description

Configuring llvm-hs-4.1.0.0...
Setup: Encountered missing dependencies:
llvm-hs-pure ==4.1.0.0
builder for ‘/nix/store/wsx1h3prp03hgf32knbyq4wkhxnw86mb-llvm-hs-4.1.0.0.drv’ failed with exit code 1

Steps to reproduce

Try to make a haskell environment with llvm-hs.

Technical details

spacekitteh commented 7 years ago

Does the cabal2nix tool support cabal projects, yet?

ccing @peti

peti commented 7 years ago

If you look at the generated expression for llvm-hs in pkgs/development/haskell-modules/hackage-packages.nix, you'll find that it does include llvm-hs-pure as a dependency. I suppose the build fails because we use version 4.0.0.0 of that package by default, not 4.1.0.0. It appears that llvm-hs-pure is a part of LTS Haskell, but llvm-hs is not, otherwise this mismatch would not occur.

Ekleog commented 6 years ago

(triage) Reading from https://github.com/llvm-hs/llvm-hs/issues/116#issuecomment-318258390, I would think this likely no longer is an issue… @spacekitteh, can you confirm or infirm this statement?

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