anchor.diff:  , libxml2
   , polkit
   , openldap
  -#, orbit
  +, orbit2
   }:
   
   with {
  
positive.code:     "--disable-gtk-doc-pdf"
      "--disable-documentation"
      "--enable-gtk"
      (enFlag "orbit" (gnome2.ORBit2 != null) null)
      (enFlag "defaults-service" (dbus_glib != null) null)
      "--enable-gsettings-backend"
      "--enable-nls"
  
negative.code:     gtk3
      libxml2
      openldap
      orbit2
      polkit
    ];
  
  