websocketpp: Add new package, version 0.4.0.

Required as a dependency of the Tomahawk music player.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>

pkgs/development/libraries/websocket++/default.nix

@@ -0,0 +1,21 @@
+{ stdenv, fetchFromGitHub, cmake }:
+
+stdenv.mkDerivation rec {
+  name = "websocket++-${version}";
+  version = "0.4.0";
+
+  src = fetchFromGitHub {
+    owner = "zaphoyd";
+    repo = "websocketpp";
+    rev = version;
+    sha256 = "1n6j0dh3qpis0f7crd49a2nhxd5459h0blch408z3kwlasx2g0i5";
+  };
+
+  buildInputs = [ cmake ];
+
+  meta = {
+    homepage = "http://www.zaphoyd.com/websocketpp/";
+    description = "C++/Boost Asio based websocket client/server library";
+    license = stdenv.lib.licenses.BSD3;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -7000,6 +7000,8 @@ let
     enableIntrospection = false;
   };
 
+  websocketpp = callPackage ../development/libraries/websocket++ { };
+
   wildmidi = callPackage ../development/libraries/wildmidi { };
 
   wvstreams = callPackage ../development/libraries/wvstreams { };