Add xf86-video-nested

This does not yet compile. I had a working version from an obsolete github repo, but then found the upstream repo. Perhaps it needs a newer Xorg.

pkgs/os-specific/linux/xf86-video-nested/default.nix

@@ -0,0 +1,26 @@
+{ stdenv, fetchgit, autoconf, automake, fontsproto, libX11, libXext
+, libtool, pkgconfig, renderproto, utilmacros, xorgserver
+}:
+
+stdenv.mkDerivation {
+  name = "xf86-video-nested-2012-06-15";
+
+  src = fetchgit {
+    url = git://anongit.freedesktop.org/xorg/driver/xf86-video-nested;
+    rev = "ad48dc6eb98776a8a886f26f31c0110352fa1da4";
+    sha256 = "43a102405acdcdb346ab197b33c8fa724d2140f33754f8ee3941a0eea152735c"; 
+  };
+
+  buildInputs = 
+    [ autoconf automake fontsproto libX11 libXext libtool pkgconfig
+      renderproto utilmacros xorgserver
+    ];
+
+  configureScript = "./autogen.sh";
+
+  meta = {
+    homepage = git://anongit.freedesktop.org/xorg/driver/xf86-video-nested;
+    description = "driver to run Xorg on top of Xorg or something else";
+    maintainers = [ stdenv.lib.maintainers.goibhniu ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -6150,6 +6150,10 @@ let
 
   xf86_input_wacom = callPackage ../os-specific/linux/xf86-input-wacom { };
 
+  xf86_video_nested = callPackage ../os-specific/linux/xf86-video-nested {
+    inherit (xorg) fontsproto renderproto utilmacros xorgserver xproto;
+  };
+
   xf86_video_nouveau = callPackage ../os-specific/linux/xf86-video-nouveau {
     inherit (xorg) xorgserver xproto fontsproto xf86driproto renderproto
       videoproto utilmacros;