{cabal, fetchurl, GLUT, HTTP, HUnit, OpenGL, QuickCheck, async, cgi, fgl,
 haskellSrc, html, network, parallel, parsec, primitive,
 regexBase, regexCompat, regexPosix,
 split, stm, syb, deepseq, text, transformers, mtl, vector, xhtml, zlib, random,
 cabalInstall, alex, happy, ghc}:

# This is just a meta-package. Because upstream fails to provide proper versioned
# release tarballs that can be used for the purpose of verifying this package, we
# just create it on the fly from a simple Setup.hs file and a .cabal file that we
# store directly in the nixpkgs repository.

cabal.mkDerivation (self : {
  pname = "haskell-platform";
  version = "2012.4.0.0";
  cabalFile = ./haskell-platform-2012.4.0.0.cabal;
  setupFile = ./Setup.hs;
  src = null;
  isLibrary = false;
  propagatedBuildInputs = [
    GLUT HTTP HUnit OpenGL QuickCheck async cgi fgl
    haskellSrc html network parallel parsec primitive
    regexBase regexCompat regexPosix
    split stm syb deepseq text transformers mtl vector xhtml zlib random
    cabalInstall alex happy ghc
  ];
  unpackPhase = ''
    sourceRoot=haskell-platform
    mkdir $sourceRoot
    cp ${self.cabalFile} $sourceRoot/${self.pname}.cabal
    cp ${self.setupFile} $sourceRoot/Setup.hs
    touch $sourceRoot/LICENSE
  '';
  noHaddock = true;
  meta = {
    homepage = "http://haskell.org/platform";
    description = "Haskell Platform meta package";
    license = self.stdenv.lib.licenses.bsd3;
    platforms = self.ghc.meta.platforms;
    maintainers = with self.stdenv.lib.maintainers; [andres simons];
  };
})