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From: baron@transys.UUCP
Newsgroups: net.micro.pc
Subject: Re: Xenix S5 286 Stack Problem
Message-ID: <187@transys.UUCP>
Date: Thu, 27-Mar-86 18:16:03 EST
Article-I.D.: transys.187
Posted: Thu Mar 27 18:16:03 1986
Date-Received: Tue, 1-Apr-86 04:43:36 EST
References: <948@rlgvax.UUCP> <177@transys.UUCP> <316@omen.UUCP>
Organization: TransSystems Inc. Bellevue, WA
Lines: 52

In article <316@omen.UUCP> the author writes:

> In article <177@transys.UUCP> baron@transys.UUCP (Joe Portman) writes:
> >In <948@rlgvax.UUCP> Dennis Bednar writes:
> >
> >> It does not seem possible to tell the Xenix SV compiler/loader for
> >> the IBM PC/AT (286 CPU)to build an a.out with a large enough stack
> >> segment in some cases.
> >I have run across this exact problem, notably with compiling and setting up
> >the usenet software.
> >
> >I solved it by:
> >
> >1.	using the -M2l and -s -i flags of the compiler. This sets the compiler 
> >	to LARGE memory model and enables 286 code generation. It also allows
> >	multiple data segments. The -s strips the symbol table and the
> >	-i says SEPARATE instruction and data space. This is implied in
> >	middle, large and huge models, but MUST be specified in the default
> >	model (small).


> That implies you have a C compiler with a working large model.  I have yet
> to see a Xenix large model that can compile the average non trivial program
> without an extreme amount of hacking to avoid compiler bugs.  I eagerly
> await such a Xenix compiler, but am not holding my breath.

I will probably get flames for this, but here goes:

I have been using the C compiler from SCO for since October 1985, (first
release date ). I have had NO problems with it IF I follow standard
conventions: IE, do not have a cavalier attitude toward pointers and
integers.

So far, none of the programs ported by me have had any major surgery,
except you MUST watch your declarations. That's it. I can gripe about the
compiler being slow :-), but I cannot say it does not work.

As for a non-trivial program, how about vnews. Over 100k compiled.

-- 
          ****************************************************
          *        These are my own opinions, not those of   *
          *            my employer (self), or any one        *
          *           connected with the company (mine)      *
          ****************************************************

Joe Portman (SA)                                USPS: TransSystems Incorporated
AT&T: 1-206-453-5560                                  1280 116th Avenue NE
                                                      Bellevue WA 98009
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