anchor.diff:  
   stdenv.mkDerivation rec {
     pname = "telepathy-mission-control";
  -  version = "5.16.5";
  +  version = "5.16.6";
   
     outputs = [ "out" "lib" "dev" ];
   
     src = fetchurl {
       url = "https://telepathy.freedesktop.org/releases/${pname}/${pname}-${version}.tar.gz";
  -    sha256 = "00xxv38cfdirnfvgyd56m60j0nkmsv5fz6p2ydyzsychicxl6ssc";
  +    sha256 = "0ibs575pfr0wmhfcw6ln6iz7gw2y45l3bah11rksf6g9jlwsxy1d";
     };
  -
  -  patches = [
  -    # Fix property name (new GLib is stricter)
  -    # https://github.com/NixOS/nixpkgs/pull/81626#issuecomment-601494939
  -    # https://gitlab.gnome.org/GNOME/polari/-/merge_requests/141
  -    (fetchpatch {
  -      url = "https://github.com/TelepathyIM/telepathy-mission-control/commit/d8dab08fe8db137c6bbd8bbdc3d9b01d98c48910.patch";
  -      sha256 = "1rchl0lyfj5c3yhl63spzvx9b6ny3967dlq4hgp9qhqn0zjra3sb";
  -    })
  -  ];
   
     buildInputs = [
       python3
     ]; # ToDo: optional stuff missing
   
     nativeBuildInputs = [
  -    pkgconfig
  +    pkg-config
       libxslt
       makeWrapper
     ];
  
positive.code: { stdenv
  , fetchurl
  , fetchpatch
  , pkgconfig
  , dconf
  , telepathy-glib
  , python3
  
negative.code:   meta = with stdenv.lib; {
      description = "An account manager and channel dispatcher for the Telepathy framework";
      homepage = "https://telepathy.freedesktop.org/components/telepathy-mission-control/";
      license = licenses.lgpl21Only;
      maintainers = with maintainers; [ jtojnar ];
      platforms = platforms.unix;
    };
  