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Merge pull request #15989 from mboes/stack-builder-tweaks

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haskell.lib.buildStackProject: allow passing in a custom GHC version.
This commit is contained in:
Peter Simons 2016-06-13 12:15:11 +02:00 committed by GitHub
commit 52edff8689
2 changed files with 20 additions and 2 deletions
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17
doc/languages-frameworks/haskell.md
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@ -378,6 +378,23 @@ special options turned on:
buildInputs = [ R zeromq zlib ];
}
You can select a particular GHC version to compile with by setting the
`ghc` attribute as an argument to `buildStackProject`. Better yet, let
Stack choose what GHC version it wants based on the snapshot specified
in `stack.yaml` (only works with Stack >= 1.1.3):
{nixpkgs ? import <nixpkgs> { }, ghc ? nixpkgs.ghc}
with nixpkgs;
let R = pkgs.R.override { enableStrictBarrier = true; };
in
haskell.lib.buildStackProject {
name = "HaskellR";
buildInputs = [ R zeromq zlib ];
inherit ghc;
}
[stack-nix-doc]: http://docs.haskellstack.org/en/stable/nix_integration.html
### How to create ad hoc environments for `nix-shell`

5
pkgs/development/haskell-modules/generic-stack-builder.nix
View File

@ -4,7 +4,8 @@ with stdenv.lib;
{ buildInputs ? []
, extraArgs ? []
, LD_LIBRARY_PATH ? ""
, LD_LIBRARY_PATH ? []
, ghc ? ghc
, ...
}@args:
@ -22,7 +23,7 @@ stdenv.mkDerivation (args // {
extraArgs;
# XXX: workaround for https://ghc.haskell.org/trac/ghc/ticket/11042.
LD_LIBRARY_PATH = "${makeLibraryPath buildInputs}:${LD_LIBRARY_PATH}";
LD_LIBRARY_PATH = makeLibraryPath (LD_LIBRARY_PATH ++ buildInputs);
preferLocalBuild = true;