nixpkgs/pkgs/misc/sane-backends/builder.sh

source $stdenv/setup

postInstall() {
  if test "$hotplugSupport" = "1" ; then
    ensureDir $out/etc/hotplug/usb/
    cp tools/hotplug/* $out/etc/hotplug/usb/
  fi
}

postInstall=postInstall

genericBuild