gupnp-dlna: clean up & add updateScript

pkgs/development/libraries/gupnp-dlna/default.nix

@@ -1,18 +1,40 @@
-{ stdenv, fetchurl, pkgconfig, gobject-introspection, vala, gtk-doc, docbook_xsl, docbook_xml_dtd_412, gupnp, gst_all_1 }:
+{ stdenv
+, fetchurl
+, pkgconfig
+, gobject-introspection
+, vala
+, gtk-doc
+, docbook_xsl
+, docbook_xml_dtd_412
+, libxml2
+, gst_all_1
+, gnome3
+}:
 
 stdenv.mkDerivation rec {
-  name = "gupnp-dlna-${version}";
+  pname = "gupnp-dlna";
   version = "0.10.5";
 
   outputs = [ "out" "dev" "devdoc" ];
 
   src = fetchurl {
-    url = "mirror://gnome/sources/gupnp-dlna/${stdenv.lib.versions.majorMinor version}/${name}.tar.xz";
+    url = "mirror://gnome/sources/${pname}/${stdenv.lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
     sha256 = "0spzd2saax7w776p5laixdam6d7smyynr9qszhbmq7f14y13cghj";
   };
 
-  nativeBuildInputs = [ pkgconfig gobject-introspection vala gtk-doc docbook_xsl docbook_xml_dtd_412 ];
-  buildInputs = [ gupnp gst_all_1.gst-plugins-base ];
+  nativeBuildInputs = [
+    pkgconfig
+    gobject-introspection
+    vala
+    gtk-doc
+    docbook_xsl
+    docbook_xml_dtd_412
+  ];
+
+  buildInputs = [
+    libxml2
+    gst_all_1.gst-plugins-base
+  ];
 
   configureFlags = [
     "--enable-gtk-doc"
@@ -25,6 +47,12 @@ stdenv.mkDerivation rec {
     patchShebangs tests/test-discoverer.sh.in
   '';
 
+  passthru = {
+    updateScript = gnome3.updateScript {
+      packageName = pname;
+    };
+  };
+
   meta = with stdenv.lib; {
     homepage = https://wiki.gnome.org/Projects/GUPnP/;
     description = "Library to ease DLNA-related bits for applications using GUPnP";