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/audio/rtaudio/default.nix

@@ -0,0 +1,49 @@
+{ stdenv
+, lib
+, config
+, fetchFromGitHub
+, cmake
+, pkg-config
+, alsaSupport ? stdenv.hostPlatform.isLinux
+, alsa-lib
+, pulseaudioSupport ? config.pulseaudio or stdenv.hostPlatform.isLinux
+, libpulseaudio
+, jackSupport ? true
+, jack
+, coreaudioSupport ? stdenv.hostPlatform.isDarwin
+, CoreAudio
+}:
+
+stdenv.mkDerivation rec {
+  pname = "rtaudio";
+  version = "5.2.0";
+
+  src = fetchFromGitHub {
+    owner = "thestk";
+    repo = "rtaudio";
+    rev = version;
+    sha256 = "0xvahlfj3ysgsjsp53q81hayzw7f99n1g214gh7dwdr52kv2l987";
+  };
+
+  nativeBuildInputs = [ cmake pkg-config ];
+
+  buildInputs = lib.optional alsaSupport alsa-lib
+    ++ lib.optional pulseaudioSupport libpulseaudio
+    ++ lib.optional jackSupport jack
+    ++ lib.optional coreaudioSupport CoreAudio;
+
+  cmakeFlags = [
+    "-DRTAUDIO_API_ALSA=${if alsaSupport then "ON" else "OFF"}"
+    "-DRTAUDIO_API_PULSE=${if pulseaudioSupport then "ON" else "OFF"}"
+    "-DRTAUDIO_API_JACK=${if jackSupport then "ON" else "OFF"}"
+    "-DRTAUDIO_API_CORE=${if coreaudioSupport then "ON" else "OFF"}"
+  ];
+
+  meta = with lib; {
+    description = "A set of C++ classes that provide a cross platform API for realtime audio input/output";
+    homepage = "https://www.music.mcgill.ca/~gary/rtaudio/";
+    license = licenses.mit;
+    maintainers = with maintainers; [ magnetophon ];
+    platforms = platforms.unix;
+  };
+}