#include <sys/mx.h>

[Guy Harris]

> 	Code that uses mpx has to be rewritten using messages on System V.

Or to use sockets in 4.2BSD; Berkeley canned multiplexed files as well.

	Guy Harris
	{seismo,ihnp4,allegra}!rlgvax!guy

P.S.  It takes about a day's work (at most) to get System V message queues up
under 4.2BSD, and they're a bit faster than UNIX-domain stream sockets.
Unfortunately, the UNIX domain doesn't have "reliably delivered messages",
so I couldn't benchmark them against messages.