anchor.diff:    easytest_0_3 = markBroken super.easytest_0_3;
     haskell-src = markBrokenVersion "1.0.3.0" super.haskell-src;
   
  -  # use latest version to fix the build
  -  hackage-db = self.hackage-db_2_1_0;
  -  lens = self.lens_4_18_1;
  -  memory = self.memory_0_15_0;
  -  microlens = self.microlens_0_4_11_2;
  -  regex-pcre-builtin = self.regex-pcre-builtin_0_95_0_8_8_35;
  -  shelly = self.shelly_1_9_0;
  -  string-qq = self.string-qq_0_0_4;
  -  tls = self.tls_1_5_1;
  -  xmonad-contrib = self.xmonad-contrib_0_16;
  -
   }
  
positive.code:   async = doJailbreak super.async;
    cabal-install = doJailbreak super.cabal-install;
    ChasingBottoms = doJailbreak super.ChasingBottoms;
    cryptohash-sha256 = doJailbreak super.cryptohash-sha256;
    Diff = dontCheck super.Diff;
    doctest = doJailbreak super.doctest;
  
negative.code:     sha256 = "1v40gmnw4lqyk271wngdwz8whpfdhmza58srbkka8icwwwrck3l5";
    });
  
    # https://github.com/sol/hpack/issues/371
    hpack = appendPatch super.hpack (pkgs.fetchpatch {
      url = "https://gitlab.haskell.org/ghc/head.hackage/raw/master/patches/hpack-0.32.0.patch";
  