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/flask-seasurf/default.nix

@@ -0,0 +1,35 @@
+{ lib, fetchFromGitHub, buildPythonPackage, isPy3k, flask, mock, python }:
+
+buildPythonPackage rec {
+  pname = "Flask-SeaSurf";
+  version = "1.1.1";
+  disabled = !isPy3k;
+
+  src = fetchFromGitHub {
+    owner = "maxcountryman";
+    repo = "flask-seasurf";
+    rev = version;
+    sha256 = "sha256-L/ZUEqqHmsyXG5eShcITII36ttwQlZN5GBngo+GcCdw=";
+  };
+
+  propagatedBuildInputs = [ flask ];
+
+  checkInputs = [
+    mock
+  ];
+
+  checkPhase = ''
+    runHook preCheck
+    ${python.interpreter} -m unittest discover
+    runHook postCheck
+  '';
+
+  pythonImportsCheck = [ "flask_seasurf" ];
+
+  meta = with lib; {
+    description = "A Flask extension for preventing cross-site request forgery";
+    homepage = "https://github.com/maxcountryman/flask-seasurf";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ zhaofengli ];
+  };
+}