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/applications/audio/qmidiarp/default.nix

@@ -0,0 +1,49 @@
+{ lib, stdenv
+, fetchgit
+, automake
+, autoreconfHook
+, lv2
+, pkg-config
+, qt5
+, alsa-lib
+, libjack2
+}:
+
+stdenv.mkDerivation rec {
+  pname = "qmidiarp";
+  version = "0.6.5";
+
+  src = fetchgit {
+    url = "https://git.code.sf.net/p/qmidiarp/code";
+    sha256 = "1g2143gzfbihqr2zi3k2v1yn1x3mwfbb2khmcd4m4cq3hcwhhlx9";
+    rev = "qmidiarp-${version}";
+  };
+
+  nativeBuildInputs = [
+    autoreconfHook
+    pkg-config
+    qt5.wrapQtAppsHook
+  ];
+
+  buildInputs = [
+    alsa-lib
+    lv2
+    libjack2
+  ] ++ (with qt5; [
+    qttools
+  ]);
+
+  meta = with lib; {
+    description = "An advanced MIDI arpeggiator";
+    longDescription = ''
+      An advanced MIDI arpeggiator, programmable step sequencer and LFO for Linux.
+      It can hold any number of arpeggiator, sequencer, or LFO modules running in
+      parallel.
+    '';
+
+    homepage = "http://qmidiarp.sourceforge.net";
+    license = licenses.gpl2;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ sjfloat ];
+  };
+}