gupnp-tools and releated packages: fix and update

pkgs/development/libraries/gupnp/default.nix

@@ -1,11 +1,12 @@
 { stdenv, fetchurl, pkgconfig, glib, libxml2, gssdp, libsoup, libuuid }:
  
 stdenv.mkDerivation {
-  name = "gupnp-0.18.4";
+  name = "gupnp";
+  version = "0.20.9";
 
   src = fetchurl {
-    url = mirror://gnome/sources/gupnp/0.18/gupnp-0.18.4.tar.xz;
-    sha256 = "18bqmy8r44fnga9wz9inlq6k2s0292bnnql0c0n2j4mj25bpshvb";
+    url = mirror://gnome/sources/gupnp/0.20/gupnp-0.20.9.tar.xz;
+    sha256 = "0vicydn3f72x1rqql7857ans85mg7dfap7n7h8xrfyb9whxhlrb1";
   };
 
   propagatedBuildInputs = [ libxml2 libsoup gssdp ];
@@ -13,7 +14,16 @@ stdenv.mkDerivation {
 
   nativeBuildInputs = [ pkgconfig ];
 
+  postInstall = '' 
+    cp -r ${libsoup}/include/libsoup-2.4/libsoup $out/include
+    cp -r ${gssdp}/include/gssdp-1.0/libgssdp $out/include
+    cp -r ${libxml2}/include/libxml2/libxml $out/include
+    '';
+
   meta = {
     homepage = http://www.gupnp.org/;
+    description = "GUPnP is an implementation of the UPnP specification.";
+    license = stdenv.lib.licenses.gpl2;
+    platforms = stdenv.lib.platforms.linux;
   };
 }