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From: "David E. O'Brien" <obrien>
Message-Id: <199701092158.NAA23863@freefall.freebsd.org>
Subject: Re: Niklas Hallqvist: archivers/hpack.non-usa.only
To: chuckr@Glue.umd.edu (Chuck Robey)
Date: Thu, 9 Jan 1997 13:58:31 -0800 (PST)
Cc: imp@village.org, ache@nagual.ru, asami@cs.berkeley.edu,
        obrien@cs.ucdavis.edu, m230761@ingenieria.ingsala.unal.edu.co,
        ports@freebsd.org
Reply-To: obrien@cs.ucdavis.edu (David O'Brien)
In-Reply-To: <Pine.OSF.3.95.970109120824.7826A-100000@packet.eng.umd.edu> from "Chuck Robey" at Jan 9, 97 12:10:55 pm
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> > I still haven't seen any comments on the
> > 
> > #if defined( unix ) || defined( __unix__ )
> > #include <sys/param.h>
> > #endif
> > 
> > code that I posted which should work and be correct on most systems.
> 
> I don't know ... does sys/param.h exist on _every_ last system that has
> unix or __unix__ defined?  If not, the code above is a fatal error, and no
> good.  If it's guaranteed true, it's fine, and I'd use it.

I'm not really sure that older sysVr3 has it, nor SCO.  So unless we have
enought systems to make a cursory check, I don't like this solution.
 
> Can you make that guarantee?  If not, did you see the thing about using
> .if exists ?

Yes.  But as stated, ".if exists" is BSD make.  Now how many non-4.3Tahoe+
systems have our make???
 
-- David