uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/python-modules/rethinkdb/default.nix

@@ -0,0 +1,28 @@
+{ lib
+, buildPythonPackage
+, fetchPypi
+, six
+, setuptools
+}:
+
+buildPythonPackage rec {
+  pname = "rethinkdb";
+  version = "2.4.9";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-dV8I9xdTWlXAUSj2vmwoJI+pr/JningWqrh+H59YFcE=";
+  };
+
+  propagatedBuildInputs = [ six setuptools ];
+
+  doCheck = false;
+  pythonImportsCheck = [ "rethinkdb" ];
+
+  meta = with lib; {
+    description = "Python driver library for the RethinkDB database server";
+    homepage = "https://pypi.python.org/pypi/rethinkdb";
+    license = licenses.asl20;
+  };
+
+}