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-ethtool/default.nix

@@ -0,0 +1,34 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pkg-config
+, libnl
+, nettools
+}:
+
+buildPythonPackage rec {
+  pname = "python-ethtool";
+  version = "0.15";
+
+  src = fetchFromGitHub {
+    owner = "fedora-python";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "0arkcfq64a4fl88vjjsx4gd3mhcpa7mpq6sblpkgs4k4m9mccz6i";
+  };
+
+  postPatch = ''
+    substituteInPlace tests/parse_ifconfig.py --replace "Popen('ifconfig'," "Popen('${nettools}/bin/ifconfig',"
+  '';
+
+  buildInputs = [ libnl ];
+  nativeBuildInputs = [ pkg-config ];
+  pythonImportsCheck = [ "ethtool" ];
+
+  meta = with lib; {
+    description = "Python bindings for the ethtool kernel interface";
+    homepage = "https://github.com/fedora-python/python-ethtool";
+    license = licenses.gpl2Plus;
+    maintainers = with maintainers; [ elohmeier ];
+  };
+}