[Nix-dev] Haskell NG

[Charles Strahan]

Wow, very exciting! Hopefully we can get GHCJS ready as a first-class
citizen by then.

Cheers!
-Charles

On Tue, Dec 30, 2014 at 4:58 AM, Peter Simons <simons at cryp.to> wrote:

> Hi Charles,
>
>  > How much work remains before we can flip the switch?
>
> the 'haskell-ng' branch in [1] is pretty stable by now. According to [2],
> we
> can build approximately 50% of Hackage. There's more work to be done in
> cabal2nix, improving the generated package list to get that percentage up
> some more, but IMHO the major challenges have been solved. Anyone who wants
> to look at the code, can check out [3].
>
> Also, everyone is welcome to try out the new Haskell environment: get the
> 'haskell-ng' branch, add the attribute
>
>   provideOldHaskellAttributeNames = true;
>
> to your ~/.nixpkgs/config.nix file, and then your normal configuration
> should work just like it did before -- unless, if your configuration was
> based on the ghc-wrapper. Then you'll have to convert to ghcWithPackages,
> because the wrapper is gone.
>
> It will be 2-3 more weeks until I'll open a PR, asking for review before
> merging to 'master'.
>
> Best regards,
> Peter
>
>
> [1] https://github.com/peti/nixpkgs
> [2] http://hydra.nixos.org/jobset/nixpkgs/haskell-updates
> [3]
> https://github.com/peti/nixpkgs/blob/haskell-ng/pkgs/development/haskell-modules
>
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