add_users won't?!

[Craig Treleaven]

Hi:

I'm trying to add a user (with a new group) and I can't get it to 
work.  Below are the relevant bits from the portfile.

set mythtvuser		${name}user
set mythtvgroup		myth
set mythtvhomedir	${prefix}/var/${mythtvuser}
add_users ${mythtvuser} group=${mythtvgroup} home=${mythtvhomedir} \
     passwd=mythtv realname=MythTV_User

There doesn't seem to be an error message from the add_users line but 
when I use xinstall in the pre-activate phase, it complains there is 
no such group.  Also, in System Preferences->Accounts, my user 
doesn't show up.  (It should, right?)

If you want to see the full Portfile (with these bits commented-out), go to:
http://dl.dropbox.com/u/26787680/Portfile.MythTV.2012May16

I notice that other ports, like couchdb and dbus use separate 
addgroup and adduser functions.  Are these deprecated?

Craig