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/misc/k40-whisperer/default.nix

@@ -0,0 +1,74 @@
+{ stdenv
+, makeWrapper
+, writeText
+, python3
+, fetchzip
+, inkscape
+, lib
+, udevGroup ? "k40"
+}:
+
+let
+  pythonEnv = python3.withPackages (ps: with ps; [
+    lxml
+    pyusb
+    pillow
+    pyclipper
+    tkinter
+  ]);
+
+  udevRule = writeText "k40-whisperer.rules" ''
+    SUBSYSTEM=="usb", ATTRS{idVendor}=="1a86", ATTRS{idProduct}=="5512", ENV{DEVTYPE}=="usb_device", MODE="0664", GROUP="${udevGroup}"
+  '';
+
+in stdenv.mkDerivation rec {
+  pname = "k40-whisperer";
+  version = "0.59";
+
+  src = fetchzip {
+    url = "https://www.scorchworks.com/K40whisperer/K40_Whisperer-${version}_src.zip";
+    stripRoot = true;
+    sha256 = "0r8rhaksk87l44pwwpvrfnck2lyic3lgcbh3pi7ib6mrwbsyhlni";
+  };
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  patchPhase = ''
+    substituteInPlace svg_reader.py \
+      --replace '"/usr/bin/inkscape"' '"${inkscape}/bin/inkscape"'
+  '';
+
+  buildPhase = "";
+
+  installPhase = ''
+    mkdir -p $out
+    cp -p * $out
+
+    mkdir -p $out/bin
+    mkdir -p $out/lib/udev/rules.d
+
+    ln -s ${udevRule} $out/lib/udev/rules.d/97-k40-whisperer.rules
+
+    makeWrapper '${pythonEnv.interpreter}' $out/bin/k40-whisperer \
+      --add-flags $out/k40_whisperer.py \
+      --prefix PYTHONPATH : $out
+  '';
+
+  meta = with lib; {
+    description = ''
+      Control software for the stock K40 Laser controller
+    '';
+    mainProgram = "k40-whisperer";
+    longDescription = ''
+      K40 Whisperer is an alternative to the the Laser Draw (LaserDRW) program that comes with the cheap Chinese laser cutters available on E-Bay and Amazon.
+      K40 Whisperer reads SVG and DXF files, interprets the data and sends commands to the K40 controller to move the laser head and control the laser accordingly.
+      K40 Whisperer does not require a USB key (dongle) to function.
+    '';
+    homepage = "https://www.scorchworks.com/K40whisperer/k40whisperer.html";
+    downloadPage = "https://www.scorchworks.com/K40whisperer/k40whisperer.html#download";
+    license = licenses.gpl3;
+    maintainers = with maintainers; [ fooker ];
+    platforms = platforms.all;
+  };
+}
+