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/sentencepiece/default.nix

@@ -0,0 +1,34 @@
+{ lib
+, fetchFromGitHub
+, stdenv
+, cmake
+, gperftools
+
+, withGPerfTools ? true
+}:
+
+stdenv.mkDerivation rec {
+  pname = "sentencepiece";
+  version = "0.1.96";
+
+  src = fetchFromGitHub {
+    owner = "google";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-jo8XlQJsnWpeeezDjNNhh6T473XMqe8fsApUr82Y3BU=";
+  };
+
+  nativeBuildInputs = [ cmake ];
+
+  buildInputs = lib.optionals withGPerfTools [ gperftools ];
+
+  outputs = [ "bin" "dev" "out" ];
+
+  meta = with lib; {
+    homepage = "https://github.com/google/sentencepiece";
+    description = "Unsupervised text tokenizer for Neural Network-based text generation";
+    license = licenses.asl20;
+    platforms = platforms.unix;
+    maintainers = with maintainers; [ pashashocky ];
+  };
+}