anchor.diff:    preFixup = with gnome3; ''
       wrapProgram $out/bin/gnome-control-center \
         --set GDK_PIXBUF_MODULE_FILE "$GDK_PIXBUF_MODULE_FILE" \
  -      --prefix XDG_DATA_DIRS : "${gnome3.gnome_themes_standard}/share:${gnome_settings_daemon}/share:${glib}/share:${gtk}/share:${colord}/share:$out/share:$out/share/gnome-control-center:$XDG_ICON_DIRS:$GSETTINGS_SCHEMAS_PATH"
  +      --prefix XDG_DATA_DIRS : "${gnome3.gnome_themes_standard}/share:$out/share:$out/share/gnome-control-center:$XDG_ICON_DIRS:$GSETTINGS_SCHEMAS_PATH"
       for i in $out/share/applications/*; do
         substituteInPlace $i --replace "gnome-control-center" "$out/bin/gnome-control-center"
       done
  
positive.code:       libxml2 gnome_desktop gnome_settings_daemon polkit libxslt libgtop gnome-menus
        gnome_online_accounts libsoup colord pulseaudio fontconfig colord-gtk libpwquality
        accountservice krb5 networkmanagerapplet libwacom samba libnotify libxkbfile
        shared_mime_info icu libtool docbook_xsl docbook_xsl_ns 
        networkmanager modemmanager makeWrapper  ];
  
    preBuild = ''
  
negative.code: , libxml2, polkit, libxslt, libgtop, libsoup, colord, colord-gtk
  , cracklib, python, krb5, networkmanagerapplet, networkmanager
  , libwacom, samba, shared_mime_info, tzdata, icu, libtool
  , docbook_xsl, docbook_xsl_ns, modemmanager, clutter, clutter_gtk }:
  
  # http://ftp.gnome.org/pub/GNOME/teams/releng/3.10.2/gnome-suites-core-3.10.2.modules
  # TODO: bluetooth, wacom, smbclient, printers
  
  stdenv.mkDerivation rec {
    name = "gnome-control-center-3.12.1";
  
    src = fetchurl {
      url = "mirror://gnome/sources/gnome-control-center/3.12/${name}.tar.xz";
      sha256 = "5297d448eff0ec58f6c0ad9fbd1b94bed0a850496df0ee65571c0622b49c1582";
    };
  
    propagatedUserEnvPkgs = [ gnome3.gnome_themes_standard gnome3.libgnomekbd ];
  
    enableParallelBuilding = true;
  
  