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/os-specific/darwin/skhd/default.nix

@@ -0,0 +1,31 @@
+{ lib, stdenv, fetchFromGitHub, Carbon }:
+
+stdenv.mkDerivation rec {
+  pname = "skhd";
+  version = "0.3.5";
+
+  src = fetchFromGitHub {
+    owner = "koekeishiya";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "0x099979kgpim18r0vi9vd821qnv0rl3rkj0nd1nx3wljxgf7mrg";
+  };
+
+  buildInputs = [ Carbon ];
+
+  makeFlags = [ "BUILD_PATH=$(out)/bin" ];
+
+  postInstall = ''
+    mkdir -p $out/Library/LaunchDaemons
+    cp ${./org.nixos.skhd.plist} $out/Library/LaunchDaemons/org.nixos.skhd.plist
+    substituteInPlace $out/Library/LaunchDaemons/org.nixos.skhd.plist --subst-var out
+  '';
+
+  meta = with lib; {
+    description = "Simple hotkey daemon for macOS";
+    homepage = "https://github.com/koekeishiya/skhd";
+    platforms = platforms.darwin;
+    maintainers = with maintainers; [ cmacrae lnl7 periklis ];
+    license = licenses.mit;
+  };
+}