anchor.diff:  
         It provides a GLib-based library, libnice and a Glib-free library,
         libstun as well as GStreamer elements.'';
  +    homepage = "https://nice.freedesktop.org/wiki/";
       platforms = platforms.linux;
       license = with licenses; [ lgpl21 mpl11 ];
     };
  
positive.code:   ];
  
    nativeBuildInputs = [
      meson ninja pkgconfig python3 gobject-introspection
      gtk-doc
      # Without these, enabling the 'gtk_doc' gives us `FAILED: meson-install`
      docbook_xsl docbook_xml_dtd_412
    ];
    buildInputs = [ gst_all_1.gstreamer gst_all_1.gst-plugins-base gnutls ];
    propagatedBuildInputs = [ glib gupnp-igd ];
  
    mesonFlags = [
      # Enables all features, so that we know when new dependencies are necessary.
      "-Dauto_features=enabled"
      "-Dgtk_doc=enabled" # Disabled by default as of libnice-0.1.15
      "-Dexamples=disabled" # requires many dependencies and probably not useful for our users
    ];
  
    # TODO; see #53293 etc.
    #doCheck = true;
  
    meta = with stdenv.lib; {
      homepage = https://nice.freedesktop.org/wiki/;
      description = "The GLib ICE implementation";
      longDescription = ''
        Libnice is an implementation of the IETF's Interactice Connectivity
        Establishment (ICE) standard (RFC 5245) and the Session Traversal
  
negative.code: { stdenv
  , fetchurl
  , fetchpatch
  , meson
  , ninja
  , pkgconfig
  , python3
  , gobject-introspection
  , gtk-doc
  , docbook_xsl
  , docbook_xml_dtd_412
  , glib
  , gupnp-igd
  , gst_all_1
  , gnutls
  }:
  
  stdenv.mkDerivation rec {
    name = "libnice-0.1.16";
  