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/libraries/oneDNN/default.nix

@@ -0,0 +1,44 @@
+{ stdenv, lib, fetchFromGitHub, cmake }:
+
+# This was originally called mkl-dnn, then it was renamed to dnnl, and it has
+# just recently been renamed again to oneDNN. See here for details:
+# https://github.com/oneapi-src/oneDNN#oneapi-deep-neural-network-library-onednn
+stdenv.mkDerivation rec {
+  pname = "oneDNN";
+  version = "2.3.2";
+
+  src = fetchFromGitHub {
+    owner = "oneapi-src";
+    repo = "oneDNN";
+    rev = "v${version}";
+    sha256 = "sha256-sfTcBthrnt7m9AnzdwWl9yLu1jRpwUp8i9s9DlA3IJo=";
+  };
+
+  outputs = [ "out" "dev" "doc" ];
+
+  nativeBuildInputs = [ cmake ];
+
+  # Tests fail on some Hydra builders, because they do not support SSE4.2.
+  doCheck = false;
+
+  # The test driver doesn't add an RPath to the build libdir
+  preCheck = ''
+    export LD_LIBRARY_PATH=$LD_LIBRARY_PATH''${LD_LIBRARY_PATH:+:}$PWD/src
+    export DYLD_LIBRARY_PATH=$DYLD_LIBRARY_PATH''${DYLD_LIBRARY_PATH:+:}$PWD/src
+  '';
+
+  # The cmake install gets tripped up and installs a nix tree into $out, in
+  # addition to the correct install; clean it up.
+  postInstall = ''
+    rm -r $out/nix
+  '';
+
+  meta = with lib; {
+    description = "oneAPI Deep Neural Network Library (oneDNN)";
+    homepage = "https://01.org/oneDNN";
+    changelog = "https://github.com/oneapi-src/oneDNN/releases/tag/v${version}";
+    license = licenses.asl20;
+    platforms = platforms.all;
+    maintainers = with maintainers; [ alexarice bhipple ];
+  };
+}