anchor.diff:    nativeBuildInputs = [ extra-cmake-modules kdoctools ];
     buildInputs = [
       boost fontconfig ibus libcanberra_kde libpulseaudio libXcursor libXft xorgserver
  -    libxkbfile phonon xf86inputevdev xf86inputsynaptics xinput xkeyboard_config
  +    libxkbfile phonon xf86inputlibinput xf86inputevdev xf86inputsynaptics xinput
  +    xkeyboard_config
   
       accounts-qt qtdeclarative qtquickcontrols qtquickcontrols2 qtsvg qtx11extras
   
  
positive.code:   patches = [
      ./hwclock-path.patch
      ./tzdir.patch
    ];
    postPatch = ''
      sed '1i#include <cmath>' -i kcms/touchpad/backends/x11/synapticstouchpad.cpp
  
negative.code: {
    mkDerivation, lib, fetchpatch,
    extra-cmake-modules, kdoctools,
  
    boost, fontconfig, ibus, libXcursor, libXft, libcanberra_kde, libpulseaudio,
  