anchor.diff:      "--disable-video"
       "--without-gtk"
       "--without-qt"
  -  ];
  -
  -  makeFlags = [
  -    "pyexecdir=${placeholder "py"}/${python.sitePackages}"
  -    "pythondir=${placeholder "py"}/${python.sitePackages}"
     ];
   
     meta = with lib; {
  
positive.code: 
    buildInputs = [
      imagemagickBig
      python
      pygtk
      perl
      libX11
    ] ++ lib.optionals enableDbus [
  
negative.code: , enableDbus ? stdenv.isLinux
  }:
  
  stdenv.mkDerivation rec {
    pname = "zbar";
    version = "0.23";
  
    outputs = [ "out" "lib" "dev" "doc" "man" ];
  
    src = fetchFromGitHub {
      owner = "mchehab";
  