fonts.dir for TrueType fonts

[Robert Ames]

In the Handbook, under section "5.5.2. TrueType Fonts" it states:

> Once the files have been copied into this directory, use ttmkfdir
> to create a fonts.dir, so that the X font renderer knows that these
> new files have been installed. ttmkfdir is available from the FreeBSD
> Ports Collection as x11-fonts/ttmkfdir.
 
ttmkdir is not in the current Ports Collection.  So how does one 
create fonts.dir?

I'm assuming the Handbook is out of date so I guess what I'm really
asking is how does one add TrueType fonts?