{ mkDerivation, base, bytestring, fetchurl, QuickCheck, tasty
, tasty-hunit, tasty-quickcheck, zlib
}:
mkDerivation {
  pname = "zlib";
  version = "0.6.1.2";
  src = fetchurl {
    url = "http://example.org/";
    sha256 = "abc";
  };
  libraryHaskellDepends = [ base bytestring ];
  librarySystemDepends = [ zlib ];
  testHaskellDepends = [
    base bytestring QuickCheck tasty tasty-hunit tasty-quickcheck
  ];
  description = "Compression and decompression in the gzip and zlib formats";
  license = stdenv.lib.licenses.bsd3;
}