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/rstcheck/default.nix

@@ -0,0 +1,55 @@
+{ lib
+, buildPythonPackage
+, docutils
+, fetchFromGitHub
+, poetry-core
+, pytestCheckHook
+, pythonOlder
+, types-docutils
+, typing-extensions
+}:
+
+buildPythonPackage rec {
+  pname = "rstcheck";
+  version = "5.0.0";
+  format = "pyproject";
+
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "myint";
+    repo = pname;
+    rev = "v${version}";
+    hash = "sha256-vTUa/eP6/flxRLBuzdHoNoPoGAg6XWwu922az8tLgJM=";
+  };
+
+  nativeBuildInputs = [
+    poetry-core
+  ];
+
+  propagatedBuildInputs = [
+    docutils
+    types-docutils
+    typing-extensions
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [
+    "rstcheck"
+  ];
+
+  preCheck = ''
+    # The tests need to find and call the rstcheck executable
+    export PATH="$PATH:$out/bin";
+  '';
+
+  meta = with lib; {
+    description = "Checks syntax of reStructuredText and code blocks nested within it";
+    homepage = "https://github.com/myint/rstcheck";
+    license = licenses.mit;
+    maintainers = with maintainers; [ staccato ];
+  };
+}