#!/bin/sh -e

case "$1" in
  upgrade) ;;
  failed-upgrade)
    if dpkg --compare-versions "$2" '<<' "4-6" ; then
     update-alternatives --remove x-window-manager /usr/bin/X11/wm2
     update-alternatives --remove x-window-manager /usr/X11R6/bin/wm2
    fi
    ;;
  remove)
    update-alternatives --remove x-window-manager /usr/bin/wm2
    ;;
esac

#DEBHELPER#
