xdm and listen=tcp

hi,
the short version:
	i start the X11 via the following line in /etc/ttys:
		ttyv8	“/usr/local/bin/xdm -nodaemon” xterm on secure

this worked great since forever, but now(*) the default of Xorg is not to accept tcp connection,
is there a simple way to fix this, apart of recompiling Xorg and somehow changing the default behavior?

*: now probably is a few years, since i have not uograded my WS for a while - why change if it’s working,
   but mow it just went belly up :-(

thanks,
	danny