GDM is installed.

Please note the following:
- This port has been tested on 5.0-CURRENT and 4.4-STABLE. It only works
  with XFree86-3.3.x. It will not work on 3.x.
- You should append these lines to your /etc/pam.conf, otherwise
  GDM will refuse all logins:

# gdm config
gdm     auth            requisite       pam_unix.so     try_first_pass
gdm     account         requisite       pam_unix.so     try_first_pass
gdm     session         required        pam_permit.so

- To enable GDM after booting, edit your /etc/ttys(5), and change the line
  for ttyv8 to

ttyv8   "/usr/X11R6/bin/gdm -nodaemon"  xterm   on

These notes were written by:  Yukihiro Nakai <nakai@FreeBSD.org>
and updated by: Stijn Hoop <stijn@win.tue.nl>