anchor.diff:        packageSetConfig = nixpkgs.callPackage (nixpkgs.path + "/pkgs/development/haskell-modules/configuration-ghcjs.nix") { inherit haskellLib; };
         inherit haskellLib;
       };
  -#    TODO: Figure out why this approach doesn't work; it doesn't seem to evaluate our overridden ghc at all
  -#    ghcjsPackages = nixpkgs.haskell.packages.ghcjs.override {
  -#      ghc = builtins.trace "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX" ghc.ghcjs;
  -#    };
     ghc = ghc8_4_2;
  -  ghcjs = (extendHaskellPackages ghcjsPackages).override {
  +  ghcjs8_2_2 = (extendHaskellPackages ghcjs8_2_2Packages).override {
       overrides = nixpkgs.lib.foldr nixpkgs.lib.composeExtensions (_: _: {}) [
         (optionalExtension enableExposeAllUnfoldings haskellOverlays.exposeAllUnfoldings)
         haskellOverlays.ghcjs
  
positive.code:       inherit (nixpkgs) lib;
        androidActivity = hackGet ./android-activity;
      };
      ghcjsPackages = nixpkgs.callPackage (nixpkgs.path + "/pkgs/development/haskell-modules") {
        ghc = ghc.ghcjs;
        buildHaskellPackages = ghc.ghcjs.bootPkgs;
        compilerConfig = nixpkgs.callPackage (nixpkgs.path + "/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix") { inherit haskellLib; };
        packageSetConfig = nixpkgs.callPackage (nixpkgs.path + "/pkgs/development/haskell-modules/configuration-ghcjs.nix") { inherit haskellLib; };
        inherit haskellLib;
  
negative.code:       (optionalExtension useTextJSString haskellOverlays.textJSString)
      ];
    };
    ghcjs = ghcjs8_4_2;
    ghcHEAD = (extendHaskellPackages nixpkgs.pkgs.haskell.packages.ghcHEAD).override {
      overrides = nixpkgs.lib.foldr nixpkgs.lib.composeExtensions (_: _: {}) [
        (optionalExtension enableExposeAllUnfoldings haskellOverlays.exposeAllUnfoldings)
  