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/pytest-flakes/default.nix

@@ -0,0 +1,35 @@
+{ lib, buildPythonPackage, fetchPypi, pythonOlder
+, pytest
+, pyflakes
+}:
+
+buildPythonPackage rec {
+  # upstream has abandoned project in favor of pytest-flake8
+  # retaining package to not break other packages
+  pname = "pytest-flakes";
+  version = "4.0.5";
+  disabled = pythonOlder "3.5";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "953134e97215ae31f6879fbd7368c18d43f709dc2fab5b7777db2bb2bac3a924";
+  };
+
+  buildInputs = [ pytest ];
+  propagatedBuildInputs = [ pyflakes ];
+  checkInputs = [ pytest ];
+
+  # no longer passes
+  doCheck = false;
+  pythonImportsCheck = [ "pytest_flakes" ];
+  # disable one test case that looks broken
+  checkPhase = ''
+    py.test test_flakes.py -k 'not test_syntax_error'
+  '';
+
+  meta = with lib; {
+    license = licenses.mit;
+    homepage = "https://pypi.python.org/pypi/pytest-flakes";
+    description = "pytest plugin to check source code with pyflakes";
+  };
+}