post_install() {
  echo "You will need the original Hexen II data files from either the demo,"
  echo "  retail version or "Portal of Praevus" add-on."

  echo "Copy the needed .pak files with lowercase file names to '~/.hexen2/data1'"
  echo "  and patch them with 'h2patch', if needed."
}

post_upgrade() {
  post_install $1
}