Re: SysV IPC

[Roland McGrath <roland@frob.com>]

I would not go so far as to say it's really worthwhile to implement the
SysV IPC interfaces (I wouldn't bother), but I certainly would not
discourage you from doing so.
 
If you change some program that uses msg*, I would not suggest porting it
to native Mach IPC, since so few people ever use that, and the Hurd might
not even use it forever.  Probably whatever it does could be done perfectly
well with unix-domain sockets (perhaps SOCK_DGRAM type).