post_install() {
cat << EOF
==> DATA FILES
To play Quake 2, you need the following files from the disc:
copy <cdromdir>/Install/Data/baseq2/pak0.pak to /opt/quake2/baseq2/
copy <cdromdir>/Install/Data/baseq2/video/ to /opt/quake2/baseq2/

To play The Reckoning, you need the following files from the disc:
copy <cdromdir>/Data/all/pak0.pak to /opt/quake2/xatrix/
copy <cdromdir>/Data/max/xatrix/video/ to /opt/quake2/xatrix/

To play Ground Zero, you need the following files from the disc:
copy <cdromdir>/Data/all/pak0.pak to /opt/quake2/rogue/
copy <cdromdir>/Data/max/Rogue/video/ to /opt/quake2/rogue/ (optional)

==> QUAKE2 BINARY
You can control switch between the quake2 and sdlquake2 binaries by changing 
the q2 symlink.  If you want to use sdlquake2, then as root type:
# ln -sf ./sdlquake2 /opt/quake2/q2

sdlquake2 uses sdl for audio, and quake2 uses oss for audio.  Alsa does not 
work well in the current version, so it is not built.
EOF
  /bin/true
}


op=$1
shift
$op $*