packageOverrides = super: let self = super.pkgs; in
  {

     myHaskell =
     self.haskellPackages.ghcWithPackages # ghcWithHoogle
        (haskellPackages: with haskellPackages; [

    random alex cabal-install cpphs happy ghc-paths
    aeson async base bytestring
    containers data-default deepseq Earley either exceptions
    filepath free haskell-src-meta # lens interpolatedstring-perl6
    language-python mtl parallel process QuickCheck semigroups
    split template-haskell text time transformers vinyl wai warp
    wl-pprint-text

    ]);
  };

}