anchor.diff:  let unwrapped = stdenv.mkDerivation rec {
     pname = "pidgin";
     majorVersion = "2";
  -  version = "${majorVersion}.13.0";
  +  version = "${majorVersion}.14.6";
   
     src = fetchurl {
       url = "mirror://sourceforge/pidgin/${pname}-${version}.tar.bz2";
  -    sha256 = "13vdqj70315p9rzgnbxjp9c51mdzf1l4jg1kvnylc4bidw61air7";
  +    sha256 = "bb45f7c032f9efd6922a5dbf2840995775e5584771b23992d04f6eff7dff5336";
     };
   
     inherit nss ncurses;
  
positive.code:   NIX_CFLAGS_COMPILE = "-I${gst_all_1.gst-plugins-base.dev}/include/gstreamer-1.0";
  
    buildInputs = let
      python-with-dbus = python.withPackages (pp: with pp; [ dbus-python ]);
    in [
      aspell startupnotification
      gst_all_1.gstreamer gst_all_1.gst-plugins-base gst_all_1.gst-plugins-good
  
negative.code:     "--disable-meanwhile"
      "--disable-nm"
      "--disable-tcl"
      "--disable-gevolution"
    ]
    ++ (lib.optionals (cyrus_sasl != null) [ "--enable-cyrus-sasl=yes" ])
    ++ (lib.optionals (gnutls != null) ["--enable-gnutls=yes" "--enable-nss=no"])
  