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/python_openzwave/default.nix

@@ -0,0 +1,42 @@
+{ lib, buildPythonPackage, fetchPypi, isPy3k
+, pkg-config
+, systemd, libyaml, openzwave, cython, pyserial
+, six, pydispatcher, urwid }:
+
+buildPythonPackage rec {
+  pname = "python_openzwave";
+  version = "0.4.19";
+
+  disabled = !isPy3k;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "6b40c7711383eeb3535cf5504f1cf47cc1ac7018eb820f299642a5a2795aef84";
+    extension = "zip";
+  };
+
+  nativeBuildInputs = [ pkg-config ];
+  buildInputs = [ systemd libyaml openzwave cython ];
+  propagatedBuildInputs = [ six urwid pydispatcher pyserial ];
+
+  # primary location for the .xml files is in /etc/openzwave so we override the
+  # /usr/local/etc lookup instead as that allows us to dump new .xml files into
+  # /etc/openzwave if needed
+  postPatch = ''
+    substituteInPlace src-lib/libopenzwave/libopenzwave.pyx \
+      --replace /usr/local/etc/openzwave ${openzwave}/etc/openzwave
+  '';
+
+  patches = [ ./cython.patch ];
+
+  # no tests available
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Python wrapper for the OpenZWave C++ library";
+    homepage = "https://github.com/OpenZWave/python-openzwave";
+    license = licenses.gpl3Plus;
+    maintainers = with maintainers; [ etu ];
+    inherit (openzwave.meta) platforms;
+  };
+}