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/pynvim/default.nix

@@ -0,0 +1,38 @@
+{ buildPythonPackage
+, fetchPypi
+, lib
+, msgpack
+, greenlet
+, pythonOlder
+, isPyPy
+, pytest-runner
+}:
+
+buildPythonPackage rec {
+  pname = "pynvim";
+  version = "0.4.3";
+  disabled = pythonOlder "3.4";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-OnlTeL3l6AkvvrOhqZvpxhPSaFVC8dsOXG/UZ+7Vbf8=";
+  };
+
+  nativeBuildInputs = [
+    pytest-runner
+  ];
+
+  # Tests require pkgs.neovim,
+  # which we cannot add because of circular dependency.
+  doCheck = false;
+
+  propagatedBuildInputs = [ msgpack ]
+    ++ lib.optional (!isPyPy) greenlet;
+
+  meta = {
+    description = "Python client for Neovim";
+    homepage = "https://github.com/neovim/python-client";
+    license = lib.licenses.asl20;
+    maintainers = with lib.maintainers; [ ];
+  };
+}