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/preprocess-cancellation/default.nix

@@ -0,0 +1,61 @@
+{ lib
+, buildPythonPackage
+, pythonOlder
+, fetchFromGitHub
+, poetry-core
+, shapely
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "preprocess-cancellation";
+  version = "0.2.0";
+  disabled = pythonOlder "3.6"; # >= 3.6
+  format = "pyproject";
+
+  # No tests in PyPI
+  src = fetchFromGitHub {
+    owner = "kageurufu";
+    repo = "cancelobject-preprocessor";
+    rev = version;
+    hash = "sha256-mn3/etXA5dkL+IsyxwD4/XjU/t4/roYFVyqQxlLOoOI=";
+  };
+
+  patches = [
+    ./pep-621.patch
+  ];
+
+  postPatch = ''
+    sed -i "/^addopts/d" pyproject.toml
+
+    # setuptools 61 compatibility
+    # error: Multiple top-level packages discovered in a flat-layout: ['STLs', 'GCode'].
+    mkdir tests
+    mv GCode STLs test_* tests
+    substituteInPlace tests/test_preprocessor.py \
+      --replace "./GCode" "./tests/GCode"
+    substituteInPlace tests/test_preprocessor_with_shapely.py \
+      --replace "./GCode" "./tests/GCode"
+  '';
+
+  nativeBuildInputs = [
+    poetry-core
+  ];
+
+  propagatedBuildInputs = [
+    shapely
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [ "preprocess_cancellation" ];
+
+  meta = with lib; {
+    description = "Klipper GCode Preprocessor for Object Cancellation";
+    homepage = "https://github.com/kageurufu/cancelobject-preprocessor";
+    license = licenses.gpl3Only;
+    maintainers = with maintainers; [ zhaofengli ];
+  };
+}