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/mask-rcnn/default.nix

@@ -0,0 +1,68 @@
+{ buildPythonPackage
+, cython
+, fetchFromGitHub
+, fetchpatch
+, h5py
+, imgaug
+, ipython
+, keras
+, lib
+, matplotlib
+, numpy
+, opencv3
+, pillow
+, scikitimage
+, scipy
+, tensorflow
+}:
+
+buildPythonPackage rec {
+  pname = "mask-rcnn";
+  version = "2.1";
+
+  src = fetchFromGitHub {
+    owner = "matterport";
+    repo = "Mask_RCNN";
+    rev = "3deaec5d902d16e1daf56b62d5971d428dc920bc";
+    sha256 = "13s3q9yh2q9m9vyksd269mww3bni4q2w7q5l419q70ca075qp8zp";
+  };
+
+  patches = [
+    # Fix for TF2:
+    # https://github.com/matterport/Mask_RCNN/issues/2734
+    (fetchpatch {
+      url = "https://github.com/BupyeongHealer/Mask_RCNN_tf_2.x/commit/7957839fe2b248f2f22c7e991ead12068ddc6cfc.diff";
+      excludes = [ "mrcnn/model.py" ];
+      sha256 = "sha256-70BGrx6X1uJDA2025f0YTlreT2uB3n35yIzuhf+ypVc=";
+    })
+  ];
+
+  # Fix for recent Keras
+  postPatch = ''
+    substituteInPlace mrcnn/model.py \
+      --replace "KE." "KL."
+  '';
+
+  nativeBuildInputs = [ cython ];
+
+  propagatedBuildInputs = [
+    h5py
+    imgaug
+    ipython
+    keras
+    matplotlib
+    numpy
+    opencv3
+    pillow
+    scikitimage
+    scipy
+    tensorflow
+  ];
+
+  meta = with lib; {
+    description = "Mask R-CNN for object detection and instance segmentation on Keras and TensorFlow";
+    homepage = "https://github.com/matterport/Mask_RCNN";
+    license = licenses.mit;
+    maintainers = with maintainers; [ rakesh4g ];
+  };
+}