anchor.diff:                else drv: drv;
           in {
   
  -        servant-auth-server = self.callHackage "servant-auth-server" "0.3.1.0" {};
  -        vector = doJailbreak super.vector;
  -        these = doJailbreak super.these;
  -        aeson-compat = doJailbreak super.aeson-compat;
  -        timezone-series = self.callCabal2nix "timezone-series" (fetchFromGitHub {
  -          owner = "ygale";
  -          repo = "timezone-series";
  -          rev = "9f42baf542c54ad554bd53582819eaa454ed633d";
  -          sha256 = "1axrx8lziwi6pixws4lq3yz871vxi81rib6cpdl62xb5bh9y03j6";
  -        }) {};
  -        timezone-olson = self.callCabal2nix "timezone-olson" (fetchFromGitHub {
  -          owner = "ygale";
  -          repo = "timezone-olson";
  -          rev = "aecec86be48580f23145ffb3bf12a4ae191d12d3";
  -          sha256 = "1xxbwb8z27qbcscbg5qdyzlc2czg5i3b0y04s9h36hfcb07hasnz";
  -        }) {};
  -        quickcheck-instances = doJailbreak super.quickcheck-instances;
  -
  -        gtk2hs-buildtools = doJailbreak super.gtk2hs-buildtools;
  -
  -        # hindent was overriden with a newer version of haskell-src-exts for some reason
  -        hindent = super.hindent.override { haskell-src-exts = self.haskell-src-exts; };
  -        # Not sure why these tests fail...
  -        hfmt = dontCheck super.hfmt;
  -
           ########################################################################
           # Reflex packages
           ########################################################################
  
positive.code: , iosSdkVersion ? "10.2"
  }:
  let iosSupport = system != "x86_64-darwin";
      globalOverlay = self: super: {
        all-cabal-hashes = fetchurl {
          url = https://github.com/commercialhaskell/all-cabal-hashes/archive/c7af4479644dd1657df956dd7575b070c1e30d83.tar.gz;
          sha256 = "1aw6lcyjlfcpk74al489gds4vr4709d0rpchrr0lysrpk7mk2a7g";
        };
      };
      appleLibiconvHack = self: super: {
        darwin = super.darwin // {
          libiconv =
  
negative.code:         reflex-dom-core = addReflexOptimizerFlag (dontCheck (dontHaddock reflexDom.reflex-dom-core));
          reflex-todomvc = self.callPackage (hackGet ./reflex-todomvc) {};
          reflex-aeson-orphans = self.callPackage (hackGet ./reflex-aeson-orphans) {};
  
          inherit (jsaddlePkgs) jsaddle jsaddle-warp jsaddle-clib
                                jsaddle-webkit2gtk jsaddle-webkitgtk
                                jsaddle-wkwebview;
  
          jsaddle-dom = self.callPackage (hackGet ./jsaddle-dom) {};
  
          inherit (ghcjsDom) ghcjs-dom-jsffi;
  
          inherit (gargoylePkgs) gargoyle gargoyle-postgresql;
  
          language-nix = dontCheck super.language-nix;
  
          ########################################################################
          # Packages not in hackage
  