anchor.diff:      updateScript = gnome3.updateScript { packageName = "gcr"; attrPath = "gnome3.gcr"; };
     };
   
  +  postPatch = ''
  +    patchShebangs .
  +  '';
  +
     outputs = [ "out" "dev" ];
   
     nativeBuildInputs = [ pkgconfig intltool gobjectIntrospection libxslt makeWrapper vala ];
  
positive.code: 
    propagatedBuildInputs = [ glib gtk p11-kit ];
  
    #doCheck = true;
  
    #enableParallelBuilding = true; issues on hydra
  
  
negative.code: { stdenv, fetchurl, pkgconfig, intltool, gnupg, p11-kit, glib
  , libgcrypt, libtasn1, dbus-glib, gtk, pango, gdk_pixbuf, atk
  , gobjectIntrospection, makeWrapper, libxslt, vala, gnome3
  , python2 }:
  
  stdenv.mkDerivation rec {
    name = "gcr-${version}";
  