{ 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;
}

#stdenv.mkDerivation rec {