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Re: Recursively propagate build-system 'arguments' to dependency package
From: |
Eric Bavier |
Subject: |
Re: Recursively propagate build-system 'arguments' to dependency packages? |
Date: |
Mon, 6 Feb 2017 20:19:36 -0600 |
On Mon, 06 Feb 2017 21:09:33 +0000
Myles English <address@hidden> wrote:
> Trying to define a package to be compiled by ghc-8, and I think all of
> its dependencies must also be compiled by ghc-8 rather than ghc (which
> is version 7). This is easy to do with one package, e.g..:
>
> (define-module (my-packages myhaskell)
> ...
> #:use-module ((gnu packages haskell) #:prefix haskellmain:))
>
> (define-public ghc-hunit8
> (package
> (inherit haskellmain:ghc-hunit)
> (arguments `(#:haskell ,ghc-8))))
>
> To do that recursively for all the dependencies seems Too Difficult so,
> is there a way to do something like --with-input=ghc=ghc-8 but with the
> build-system arguments? Perhaps doing the work in between the Bag and
> the Derivation?
You may take a look at the 'package-with-python2' procedure in
guix/build-system/python.scm, which seems like it could be adapted to
work with haskell/ghc packages.
`~Eric