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/libqtav/default.nix

@@ -0,0 +1,70 @@
+{ mkDerivation
+, lib
+, fetchFromGitHub
+, extra-cmake-modules
+, qtbase
+, qtmultimedia
+, qtquick1
+, qttools
+, libGL
+, libX11
+, libass
+, openal
+, ffmpeg
+, libuchardet
+, alsa-lib
+, libpulseaudio
+, libva
+}:
+
+with lib;
+
+mkDerivation rec {
+  pname = "libqtav";
+  version = "unstable-2020-09-10";
+
+  nativeBuildInputs = [ extra-cmake-modules qttools ];
+  buildInputs = [
+    qtbase
+    qtmultimedia
+    qtquick1
+    libGL
+    libX11
+    libass
+    openal
+    ffmpeg
+    libuchardet
+    alsa-lib
+    libpulseaudio
+    libva
+  ];
+
+  src = fetchFromGitHub {
+    sha256 = "0qwrk40dihkbwmm7krz6qaqyn9v3qdjnd2k9b4s3a67x4403pib3";
+    rev = "2a470d2a8d2fe22fae969bee5d594909a07b350a";
+    repo = "QtAV";
+    owner = "wang-bin";
+    fetchSubmodules = true;
+  };
+
+  # Make sure libqtav finds its libGL dependency at both link and run time
+  # by adding libGL to rpath. Not sure why it wasn't done automatically like
+  # the other libraries as `libGL` is part of our `buildInputs`.
+  NIX_CFLAGS_LINK = "-Wl,-rpath,${libGL}/lib";
+
+  preFixup = ''
+    mkdir -p "$out/bin"
+    cp -a "./bin/"* "$out/bin"
+  '';
+
+  stripDebugList = [ "lib" "libexec" "bin" "qml" ];
+
+  meta = {
+    description = "A multimedia playback framework based on Qt + FFmpeg";
+    #license = licenses.lgpl21; # For the libraries / headers only.
+    license = licenses.gpl3; # With the examples (under bin) and most likely some of the optional dependencies used.
+    homepage = "http://www.qtav.org/";
+    maintainers = [ maintainers.jraygauthier ];
+    platforms = platforms.linux;
+  };
+}