What does "USG" mean?

[r.peterson]

>From article <1677 at ctisbv.cti-software.nl>, by pim at cti-software.nl (Pim Zandbergen):
> This may be a silly question, but I could not find the answer elsewhere:
> 
> Lots of software wants me to #define USG to indicate
> I am compiling on a SYSV box (or on a SYSIII box,
> for that matter). What does USG mean?

Holdover from old System III days - Unified (or United) Systems Group.
-- 
One makes strong assumptions delving	       Roe Peterson
into the beginning of the universe...	       {uunet,mcgill-vision}!sobeco!roe
	- Stephen Hawking, Cambridge