post_install() {
    echo ">>> If you use software mixing on your sound card, uncomment the"
    echo ">>>   first export statement in /usr/bin/nwn to make that work"
    echo ">>>"
    echo ">>> Some of the additional modules create .ini files the first time"
    echo ">>>   they start. You may have to restart nwn a few times for it"
    echo ">>>   load successfully. This is normal. Run 'nwn' from a terminal the"
    echo ">>>   first few times until the game starts running correctly."
    echo ">>>"
    echo ">>> If something throws an error saying it cannot create the .ini file, "
    echo ">>>   try modifying the export LD_PRELOAD line in /usr/bin/nwn to"
    echo ">>>   include just one additional library at a time. For example:"
    echo ">>>"
    echo ">>>      export LD_PRELOAD=./nwuser.so  (start nwn)"
    echo ">>>      export LD_PRELOAD=./nwuser.so:./nwmouse.so (start nwn)"
    echo ">>>      export LD_PRELOAD=./nwuser.so:./nwmouse.so:./nwmovies.so (start nwn)"
    echo ">>>      ... etc"
    echo ">>>"
    echo ">>>   Now when you start NWN again, all the extra modules should load successfully."
}

post_upgrade() {
    post_install $1
}

pre_remove() {
    /bin/true
}

op=$1
shift

$op $*