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Haskell in Nixpkgs/NixOS

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For discussions and questions about Haskell with Nix, cabal2nix and haskellPackages in nixpkgs | Current Docs: https://haskell4nix.readthedocs.io/143 Servers

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10 Oct 2025
@robert:funklause.dedotlambda
In reply to @maralorn:maralorn.de
Are you currently trying to fix a build error?
Yes. Try building haskellPackages.hledger_1_50. It fails because it needs hledger-lib_1_50.
21:26:22
@maralorn:maralorn.demaralornYeah, makes sense.21:26:37
@maralorn:maralorn.demaralornYeah, you would need to manually override hledger to use the correct hledger-lib version. Belongs into configuration-common.nix. Would be fine to open against master.21:27:40
@maralorn:maralorn.demaralornAlternatively you remove the stackage pinning from hledger. Which by the issue I linked has been requested multiple times.21:28:13
@robert:funklause.dedotlambda
In reply to @maralorn:maralorn.de
Alternatively you remove the stackage pinning from hledger. Which by the issue I linked has been requested multiple times.
That might break something that depends on hledger, not sure
21:28:53
@maralorn:maralorn.demaralornYeah, totally.21:29:19
@maralorn:maralorn.demaralornJust a suggestion. Do whatever you prefer.21:30:24
@robert:funklause.dedotlambdaHow would I remove the pinning?21:33:33
@robert:funklause.dedotlambda I guess I add it to update-stackage.sh 21:33:58
@maralorn:maralorn.demaralornYes, exactly.21:34:42

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