This section shows you how to make a symbolic link which will make your port building
from CD-ROM much faster.
That said, I couldn't make this work. I think perhaps you
also need the port skeltons. But I'm not sure. Good luck You may wish to
refer to the FreeBSD Handbook to see how to install a port
from CD-ROM.
Changing /etc/make.conf
According to the documentation in the handbook (see the link above), I added the
following to /etc/make.conf: