anchor.diff:        categories = "GNOME;GTK;Utility;TextEditor;Development;";
       };
   
  -    buildInputs = [ unzip ];
  +    buildInputs = if stdenv.system == "x86_64-darwin"
  +      then [ unzip ]
  +      else [ ];
   
       installPhase = ''
         mkdir -p $out/lib/vscode $out/bin
  
positive.code: { stdenv, lib, callPackage, fetchurl, unzip, atomEnv, makeDesktopItem }:
  
  let
    version = "1.4.0";
    rev = "6276dcb0ae497766056b4c09ea75be1d76a8b679";
  
    sha256 = if stdenv.system == "i686-linux"    then "1k228kv1v2765qnz6zw41h79fddwx5pcy9v9jyhsrwyla83fx4ar"
        else if stdenv.system == "x86_64-linux"  then "1v0am0xpgnlwb3k35v7wxlv22035444ii3v5gv6hf1xbnybsa7lm"
        else if stdenv.system == "x86_64-darwin" then "0395wnq8wi9x382l51wf8wiaclx7bjf5p0j39gq8y6j2ww8y2z7n"
        else throw "Unsupported system: ${stdenv.system}";
  
    urlMod = if stdenv.system == "i686-linux" then "linux-ia32"
        else if stdenv.system == "x86_64-linux" then "linux-x64"
        else if stdenv.system == "x86_64-darwin" then "darwin"
        else throw "Unsupported system: ${stdenv.system}";
  in
    stdenv.mkDerivation rec {
  
negative.code:     inherit version;
  
      src = fetchurl {
        url = urlStr;
        inherit sha256;
      };
  
  