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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/148 Servers

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21 Jul 2025
@magic_rb:matrix.redalder.orgmagic_rb im benchmarking a thing i wrote and im making a nix package out of a cabal file using cabal2nix, however if i change the source cabal file and remove -fllvm, -O2, or -fexpose-all-unfoldings the performance measurements dont seem to change even though im positive they should. Is nixpkgs overwriting my flags somehow? 09:41:41
@magic_rb:matrix.redalder.orgmagic_rbim now trying the same bench but build outside of nixpkgs09:45:07
@maralorn:maralorn.demaralorn magic_rb: None of those should be overriden, I think. 10:02:32

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