post_install() {
  echo "Put your heretic(1).wad (and additional wads) in '/usr/share/games/heretic/'."
  echo "You can put custom mp3/ogg music in '/usr/share/games/heretic/music', a recreated version"
  echo "of the original sound track is available freely here:"
  echo "http://sycraft.org/content/audio/heretic.shtml"
}

post_upgrade() {
  post_install
}