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/tools/X11/xkeysnail/default.nix

@@ -0,0 +1,42 @@
+{ lib, fetchFromGitHub, makeWrapper, python3Packages }:
+
+python3Packages.buildPythonApplication rec {
+  pname = "xkeysnail";
+  version = "0.4.0";
+
+  src = fetchFromGitHub {
+    owner = "mooz";
+    repo = pname;
+    rev = "bf3c93b4fe6efd42893db4e6588e5ef1c4909cfb";
+    sha256 = "0plcpb4ndzfsd5hj32m0g32swnhyph9sd759cdhhzmjvlq3j8q6p";
+  };
+
+  nativeBuildInputs = [ makeWrapper ];
+  propagatedBuildInputs = with python3Packages; [
+    evdev
+    xlib
+    inotify-simple
+    appdirs
+  ];
+
+  doCheck = false;
+
+  postInstall = ''
+    mkdir -p $out/share
+    cp ./example/config.py $out/share/example.py
+    cp ${./browser-emacs-bindings.py} $out/share/browser.py
+
+    makeWrapper $out/bin/xkeysnail $out/bin/xkeysnail-example \
+      --add-flags "-q" --add-flags "$out/share/example.py"
+    makeWrapper $out/bin/xkeysnail $out/bin/xkeysnail-browser \
+      --add-flags "-q" --add-flags "$out/share/browser.py"
+  '';
+
+  meta = with lib; {
+    description = "Yet another keyboard remapping tool for X environment";
+    homepage = "https://github.com/mooz/xkeysnail";
+    platforms = platforms.linux;
+    license = licenses.gpl1Only;
+    maintainers = with maintainers; [ bb2020 ];
+  };
+}