udp was removed when sockets made it into the Tcl/Tk core. You'll have
to drop back to something like tcl7.5 or tcl7.6 and scotty 2.0.7 if you
want to use udp stuff. At least, that's if I recall correctly. It's
been a year or so since udp was in there.
I'm not sure what you mean by update without tk?
The SunOS4 stuff has sort of stagnated. The porting notes are for
an older version of tcl (something like 7.5 or 7.6) and an older version
of scotty (something like 2.1.5) and an older version of bind (like
4.9.3 or 4.9.4)
One person here did manage to get it ported a while back and posted back
the results here. You might check the mailing list archive from a few
months ago concerning his success. He had to change a few things since the
porting notes are a bit stale.
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