anchor.diff:      spice-gtk spice-protocol libcap gdbm
       gst_all_1.gst-plugins-base gst_all_1.gst-plugins-good
     ];
  -
  -  postInstall = ''
  -    for f in "$out"/bin/*; do
  -        wrapProgram "$f" \
  -          --prefix XDG_DATA_DIRS : "$GSETTINGS_SCHEMAS_PATH" \
  -          --prefix GST_PLUGIN_SYSTEM_PATH_1_0 : "$GST_PLUGIN_SYSTEM_PATH_1_0"
  -    done
  -  '';
   
     meta = {
       description = "A viewer for remote virtual machines";
  
positive.code:     sha256 = "00y9vi69sja4pkrfnvrkwsscm41bqrjzvp8aijb20pvg6ymczhj7";
    };
  
    nativeBuildInputs = [ pkgconfig intltool ];
    buildInputs = [
      glib libxml2 gtk3 gtk-vnc gmp libgcrypt gnupg cyrus_sasl shared-mime-info
      libvirt yajl gsettings-desktop-schemas makeWrapper libvirt-glib
      libcap_ng numactl libapparmor
    ] ++ optionals stdenv.isx86_64 [
      xen
  
negative.code: { stdenv, fetchurl, pkgconfig, intltool, glib, libxml2, gtk3, gtk-vnc, gmp
  , libgcrypt, gnupg, cyrus_sasl, shared-mime-info, libvirt, yajl, xen
  , gsettings-desktop-schemas, wrapGAppsHook, libvirt-glib, libcap_ng, numactl
  , libapparmor, gst_all_1
  , spiceSupport ? true
  , spice-gtk ? null, spice-protocol ? null, libcap ? null, gdbm ? null
  