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From: mef@dbrus.uucp (Marv Fenner)
Newsgroups: comp.sys.sequent
Subject: Re: Xenix vs. UNIX
Message-ID: <7523h7s@Unify.Com>
Date: 13 Jul 90 20:36:39 GMT
References: <3304@crash.cts.com> <4716@thebes.Thalatta.COM> <1990Jun27.232700.3046@virtech.uucp> <1990Jun29..185@rdk386.uucp> <99@raysnec.UUCP> <23002@megaron.cs.arizona.edu>
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In article <23002@megaron.cs.arizona.edu> bakken@cs.arizona.edu (Dave Bakken) writes:
>In article <99@raysnec.UUCP> shwake@raysnec.UUCP (Ray Shwake) writes:
> >In article <1990Jun29..185@rdk386.uucp> ron@rdk386.UUCP (Ron Kuris) writes:
> >>
--- stuff about gcc deleted ----
> >
> >	Morale: GNU CC... It *might* work for you.
>
>Your problem here is not GCC but rather is DYNIX's retarded dual universes,
>which IMO is just a way of avoiding the task of integrating the two worlds,
>like virtually every other Unix vendor has done.  Vendors have been providing
>this for many years, so much so that a lot of sources in comp.sources

As little as three years ago, no major Unix vendors (that I'm aware of) 
provided a truly merged SYSV/BSD environment. Dynix was one of several
implementations designed to bridge the gap by offering the "best of both
worlds" (others which come to mind are Pyramid, Harris, Siemens, Apollo).

For its time, dual universality offered a way to develop portable
software for a Unix community which consisted of everything from hard-core
SYSV-forget-the-csh machines to pure BSD environments. 

Now that Sun, UI and OSF have done their thing, the trend toward
integrated Unix has made (IMO) the dual-universe concept *obsolete*
(s;dual universe;exception directories named 5bin, etc..;).

>assume routines from both universes.  These things compile with
>no problems, in general, on most systems, but it is a pain on DYNIX.
>This has been a pain for us when doing development work for our
>distributed programming language, SR, on a Sequent Symmetry running 
>DYNIX.
>-- 
I have worked with Dynix for two years, and overall, have found it to 
be an excellent development/maintenance environment. However, the "pain"
you mentioned has plagued me also - in the form of kludgy build
environments. ( One ex: -I/usr/include -I/usr/.include. Hey Sequent, 
are these headers mutually exclusive? )

>Dave Bakken                     Internet: bakken@cs.arizona.edu 
>Dept. of Comp. Sci.; U.of Ariz. UUCP:     uunet!arizona!bakken
>Tucson, AZ 85721; USA           Bitnet:   bakken%cs.arizona.edu@Arizrvax
>AT&T: +1 602 621 4098           FAX:      +1 602 621 4246

Marv Fenner    (916)920-9092        | Opinions are mine; The terminal
Unify Corp.    Sacramento, CA       | belongs to Unify
mef@unify.UUCP  ...!{csusac,pyramid}!unify!mef
Marv Fenner    (916)920-9092        | Opinions are mine; The terminal
Unify Corp.    Sacramento, CA       | belongs to Unify
mef@unify.UUCP  ...!{csusac,pyramid}!unify!mef