anchor.diff:  , fetchurl
   , intltool
   , lib
  +, makeWrapper
   
   , glib
  +, gnome-themes-standard
   , gtk_2
  +, libx11
   , libxfce4ui
   , libxfce4util
   , perlPackages
  -, xorg
  +, shared-mime-info
  +, xproto
   }:
   
   let
  
positive.code: 
    nativeBuildInputs = [
      intltool
    ];
  
    buildInputs = [
      glib
      gtk_2
      libxfce4ui
      libxfce4util
      perlPackages.URI
      xorg.libX11
      xorg.xproto
    ];
  
    configureFlags = [
  
negative.code:     "--with-x"
    ];
  
    preFixup = ''
      wrapProgram $out/bin/exo-desktop-item-edit \
        --set 'GTK2_RC_FILES' \
            '${gnome-themes-standard}/share/themes/Adwaita/gtk-2.0/gtkrc' \
        --prefix 'XDG_DATA_DIRS' : "${shared-mime-info}/share"
      wrapProgram $out/bin/exo-preferred-applications \
        --set 'GTK2_RC_FILES' \
            '${gnome-themes-standard}/share/themes/Adwaita/gtk-2.0/gtkrc' \
        --prefix 'XDG_DATA_DIRS' : "${shared-mime-info}/share"
    '';
  
    meta = with lib; {
      description = "Extensions to Xfce by os-cillation";
      homepage = http://www.xfce.org/;
  