anchor.diff: -{ mkXfceDerivation, makeWrapper, tzdata, exo, garcon, gtk2, gtk3, gettext, glib-networking, libxfce4ui, libxfce4util, libwnck3, xfconf }:
  +{ mkXfceDerivation, tzdata, exo, garcon, gtk2, gtk3, glib, gettext, glib-networking, libxfce4ui, libxfce4util, libwnck3, xfconf }:
   
   mkXfceDerivation rec {
     category = "xfce";
  
positive.code: 
    sha256 = "1v3f2xjz9gwa8maqqvv9w2dh1cgy03v89a9ny7nrv0cjsxwwrr15";
  
    nativeBuildInputs = [ makeWrapper ];
    buildInputs = [ exo garcon gtk2 gtk3 libxfce4ui libxfce4util libwnck3 xfconf ];
  
    patches = [ ../../xfce/core/xfce4-panel-datadir.patch ];
    patchFlags = "-p1";
  
negative.code: 
    configureFlags = [ "--enable-gtk3" ];
  
    meta =  {
      description = "Xfce's panel";
    };
  