anchor.diff:      aeson base bytestring Cabal containers deepseq-generics directory
       filepath hackage-db lens monad-par monad-par-extras mtl pretty
       process regex-posix SHA split transformers utf8-string cartel
  +    optparse-applicative
     ];
     testDepends = [
       aeson base bytestring Cabal containers deepseq deepseq-generics
  
positive.code:     install -D $out/bin/cabal2nix $exe
      rm -rf $out/{bin,lib,share}
      makeWrapper $exe $out/bin/cabal2nix --prefix PATH ":" "${nix-prefetch-scripts}/bin"
    '';
    homepage = "http://github.com/NixOS/cabal2nix/";
    description = "Convert Cabal files into Nix build instructions";
  
negative.code: , deepseq, deepseq-generics, directory, doctest, filepath, gitMinimal
  , hackage-db, hspec, lens, monad-par, monad-par-extras, mtl, pretty
  , process, QuickCheck, regex-posix, SHA, split, stdenv, transformers
  , utf8-string, cartel, nix-prefetch-scripts, optparse-applicative
  , makeWrapper
  }:
  
  mkDerivation rec {
    pname = "cabal2nix";
    version = "20150531";
    src = fetchgit {
      url = "http://github.com/NixOS/cabal2nix.git";
      rev = "513a5fce6cfabe0b062424f6deb191a12f7e2187";
      sha256 = "1j4x85cqj823d9swi473b4i9rz9wlm9m7c1il73h02dq5i67wida";
      deepClone = true;
    };
    isExecutable = true;
  