appleseed: init at 1.9.0-beta, osl: init at 1.9.9, seexpr: init at 2.11

pkgs/development/compilers/seexpr/default.nix

@@ -0,0 +1,23 @@
+{ stdenv, fetchFromGitHub, cmake, libpng, zlib, qt4,
+bison, flex, mesa_glu, pythonPackages
+}:
+
+stdenv.mkDerivation rec {
+  name = "seexpr-${version}";
+  version = "2.11";
+  src = fetchFromGitHub {
+    owner  = "wdas";
+    repo   = "SeExpr";
+    rev    = "v2.11";
+    sha256 = "0a44k56jf6dl36fwgg4zpc252wq5lf9cblg74mp73k82hxw439l4";
+  };
+
+  buildInputs = [ cmake mesa_glu libpng zlib qt4 pythonPackages.pyqt4 bison flex ];
+  meta = with stdenv.lib; {
+    description = "Embeddable expression evaluation engine from Disney Animation";
+    homepage = https://www.disneyanimation.com/technology/seexpr.html;
+    maintainers = with maintainers; [ hodapp ];
+    license = licenses.asl20;
+    platforms = platforms.linux;
+  };
+}