ANN: Overlay Hackage Package Index for GHC HEAD

[Ben Gamari]

Matthew Pickering <matthewtpickering at gmail.com> writes:

> Something like this is definitely useful for testing.
>
> When building GHC HEAD I override the ghcHEAD derivation on nixpkgs to
> the right commit I want to use and then can similarly specify which
> patches and versions of packages to use by modifying the
> 'configuration-ghc-head.nix' file.
> This is quite a bit more flexible than just patch files as I can point
> to specific commits in git repos etc.
>
This sounds amazing. I think you may have finally sold me on Nix.

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