On 2015-02-16 at 08:42, YCH <[email protected]> wrote:
> I've read quite many document. Wiki, nix pills, ... . But I'm confused about
> so many different ways doing similar things. And I'm worried about haskell-ng
> specific things. There is already 'haskellngPackages.hdevtools'. So I should
> override using ~/hdevtools. I'll attach my current setup information.
Nix certainly has an overwhelming number of options for similar things.
Here are two options for your situation:
1. Override hdevtools for all your builds, editing
~/.nixpkgs/config.nix, following the explanation in [1]. This is
probably the right thing; I expect you always want the patched
hdevtools. A complete config.nix:
2. Override hdevtools in your shell.nix, just for this build. This is
useful when you need a patched version of some Haskell library, rather
than a build tool. In this case, add to the let definitions (before
pkg)
hdevtools = haskellngPackages.callPackage ~/hdevtools {};
I think you'll need to replace the ~ with your homedir; ISTR Nix doesn't
interpret ~. Then change your buildTools line to refer to hdevtools,
not haskellngPackages.hdevtools.
cheers,
bergey
Footnotes:
[1] http://lists.science.uu.nl/pipermail/nix-dev/2015-January/015601.html
_______________________________________________
nix-dev mailing list
[email protected]
http://lists.science.uu.nl/mailman/listinfo/nix-dev
