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/torchvision/default.nix

@@ -0,0 +1,68 @@
+{ lib
+, symlinkJoin
+, buildPythonPackage
+, fetchFromGitHub
+, ninja
+, which
+, libjpeg_turbo
+, libpng
+, numpy
+, scipy
+, pillow
+, pytorch
+, pytest
+, cudaSupport ? pytorch.cudaSupport or false # by default uses the value from pytorch
+}:
+
+let
+  inherit (pytorch.cudaPackages) cudatoolkit cudnn;
+
+  cudatoolkit_joined = symlinkJoin {
+    name = "${cudatoolkit.name}-unsplit";
+    paths = [ cudatoolkit.out cudatoolkit.lib ];
+  };
+  cudaArchStr = lib.optionalString cudaSupport lib.strings.concatStringsSep ";" pytorch.cudaArchList;
+in buildPythonPackage rec {
+  pname = "torchvision";
+  version = "0.11.3";
+
+  src = fetchFromGitHub {
+    owner = "pytorch";
+    repo = "vision";
+    rev = "v${version}";
+    sha256 = "sha256-nJV0Jr6Uc+ALodAiekM6YpM6IbmIb4w+Jlc3bJRqayI=";
+  };
+
+  nativeBuildInputs = [ libpng ninja which ]
+    ++ lib.optionals cudaSupport [ cudatoolkit_joined ];
+
+  TORCHVISION_INCLUDE = "${libjpeg_turbo.dev}/include/";
+  TORCHVISION_LIBRARY = "${libjpeg_turbo}/lib/";
+
+  buildInputs = [ libjpeg_turbo libpng ]
+    ++ lib.optionals cudaSupport [ cudnn ];
+
+  propagatedBuildInputs = [ numpy pillow pytorch scipy ];
+
+  preBuild = lib.optionalString cudaSupport ''
+    export TORCH_CUDA_ARCH_LIST="${cudaArchStr}"
+    export FORCE_CUDA=1
+  '';
+
+  # tries to download many datasets for tests
+  doCheck = false;
+
+  checkPhase = ''
+    HOME=$TMPDIR py.test test --ignore=test/test_datasets_download.py
+  '';
+
+  checkInputs = [ pytest ];
+
+  meta = with lib; {
+    description = "PyTorch vision library";
+    homepage = "https://pytorch.org/";
+    license = licenses.bsd3;
+    platforms = with platforms; linux ++ lib.optionals (!cudaSupport) darwin;
+    maintainers = with maintainers; [ ericsagnes ];
+  };
+}