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/python2-modules/futures/default.nix

@@ -0,0 +1,27 @@
+{ lib, buildPythonPackage, fetchPypi, isPy3k, python, stdenv }:
+
+buildPythonPackage rec {
+  pname = "futures";
+  version = "3.3.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "7e033af76a5e35f58e56da7a91e687706faf4e7bdfb2cbc3f2cca6b9bcda9794";
+  };
+
+  # This module is for backporting functionality to Python 2.x, it's builtin in py3k
+  disabled = isPy3k;
+
+  checkPhase = ''
+    ${python.interpreter} test_futures.py
+  '';
+
+  doCheck = !stdenv.isDarwin;
+
+  meta = with lib; {
+    description = "Backport of the concurrent.futures package from Python 3.2";
+    homepage = "https://github.com/agronholm/pythonfutures";
+    license = licenses.bsd2;
+    maintainers = with maintainers; [  ];
+  };
+}