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/python-rtmidi/default.nix

@@ -0,0 +1,49 @@
+{ lib
+, stdenv
+, buildPythonPackage
+, fetchPypi
+, isPy27
+, pkg-config
+, alsa-lib
+, libjack2
+, tox
+, flake8
+, alabaster
+, CoreAudio
+, CoreMIDI
+, CoreServices
+}:
+
+buildPythonPackage rec {
+  pname = "python-rtmidi";
+  version = "1.4.9";
+  disabled = isPy27;
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "bfeb4ed99d0cccf6fa2837566907652ded7adc1c03b69f2160c9de4082301302";
+  };
+
+  nativeBuildInputs = [ pkg-config ];
+  buildInputs = [
+    libjack2
+  ] ++ lib.optionals stdenv.isLinux [
+    alsa-lib
+  ] ++ lib.optionals stdenv.isDarwin [
+    CoreAudio
+    CoreMIDI
+    CoreServices
+  ];
+  checkInputs = [
+    tox
+    flake8
+    alabaster
+  ];
+
+  meta = with lib; {
+    description = "A Python binding for the RtMidi C++ library implemented using Cython";
+    homepage = "https://chrisarndt.de/projects/python-rtmidi/";
+    license = licenses.mit;
+    maintainers = with maintainers; [ hexa ];
+  };
+}