Add Weston 1.0.2.

Currently doesn't build. I have to further investigate but there seems to be a
missing file from the tarball.

pkgs/applications/window-managers/weston/default.nix

@@ -0,0 +1,24 @@
+{ stdenv, fetchurl, pkgconfig, wayland, mesa90x, libxkbcommon, pixman
+, cairo, libxcb, libXcursor, x11, udev, libdrm2_4_39, mtdev
+, libjpeg, pam }:
+
+let version = "1.0.2"; in
+
+stdenv.mkDerivation rec {
+  name = "weston-${version}";
+
+  src = fetchurl {
+    url = "http://wayland.freedesktop.org/releases/${name}.tar.xz";
+    sha256 = "1496l8hmpxx7pivdpp14pv0hi30q18dmnaxz471v9jiqsnnrr11k";
+  };
+
+  buildInputs = [ pkgconfig wayland mesa90x libxkbcommon pixman
+    cairo libxcb libXcursor x11 udev libdrm2_4_39 mtdev
+    libjpeg pam ];
+
+  meta = {
+    description = "Reference implementation of a Wayland compositor";
+    homepage = http://wayland.freedesktop.org/;
+    license = stdenv.lib.licenses.mit;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -7969,6 +7969,13 @@ let
 
   weechat = callPackage ../applications/networking/irc/weechat { };
 
+  weston = callPackage ../applications/window-managers/weston {
+    cairo = cairo.override {
+      xcbSupport = true;
+      glSupport = true;
+    };
+  };
+
   wings = callPackage ../applications/graphics/wings { };
 
   wmname = callPackage ../applications/misc/wmname { };