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/dragonfly/default.nix

@@ -0,0 +1,77 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, decorator
+, packaging
+, pynput
+, regex
+, lark
+, enum34
+, pyperclip
+, six
+, requests
+, psutil
+, json-rpc
+, werkzeug
+, kaldi-active-grammar
+, sounddevice
+, webrtcvad
+, setuptools
+, xdotool
+, wmctrl
+, xorg
+}:
+
+buildPythonPackage rec {
+  pname = "dragonfly";
+  version = "0.35.0";
+
+  src = fetchFromGitHub {
+    owner = "dictation-toolbox";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-sqEEEr5/KG3cn4rmOGJt9zMNAjeLO6h3NJgg0EyewrM=";
+  };
+
+  postPatch = ''
+    substituteInPlace setup.py --replace 'lark-parser == 0.8.*' 'lark'
+    substituteInPlace dragonfly/actions/keyboard/_x11_xdotool.py \
+      --replace 'xdotool = "xdotool"'${" "}'xdotool = "${xdotool}/bin/xdotool"'
+    substituteInPlace dragonfly/windows/x11_window.py \
+      --replace 'xdotool = "xdotool"'${" "}'xdotool = "${xdotool}/bin/xdotool"' \
+      --replace 'xprop = "xprop"'${" "}'xprop = "${xorg.xprop}/bin/xprop"' \
+      --replace 'wmctrl = "wmctrl"'${" "}'wmctrl = "${wmctrl}/bin/wmctrl"'
+  '';
+
+  propagatedBuildInputs = [
+    decorator
+    packaging
+    pynput
+    regex
+    lark
+    enum34
+    pyperclip
+    six
+    requests
+    psutil
+    json-rpc
+    werkzeug
+    kaldi-active-grammar # for the Kaldi engine
+    sounddevice
+    webrtcvad
+    setuptools # needs pkg_resources at runtime
+  ];
+
+  # Too many tests fail because of the unusual environment or
+  # because of the missing dependencies for some of the engines.
+  doCheck = false;
+
+  pythonImportsCheck = [ "dragonfly" ];
+
+  meta = with lib; {
+    description = "Speech recognition framework allowing powerful Python-based scripting";
+    homepage = "https://github.com/dictation-toolbox/dragonfly";
+    license = licenses.lgpl3Plus;
+    maintainers = with maintainers; [ ckie ];
+  };
+}