From owner-freebsd-hackers  Mon Nov  5 11:41:45 2001
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Date: Mon, 5 Nov 2001 14:33:23 -0500 (EST)
From: Matthew Emmerton <matt@gsicomp.on.ca>
To: "David O'Brien" <obrien@FreeBSD.ORG>
Cc: Poul-Henning Kamp <phk@FreeBSD.ORG>, hackers@FreeBSD.ORG
Subject: Re: Idea for project:  Make cpp do unifdef service...
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I looked into this over the weekend.  Although it's fairly trivial to make
it understand things like '#if defined(FOO)', it's somewhat more tricky to
understand something like '#if ((!defined(FOO) && defined(BAR)) ||
defined(FUBAR))', which I believe was the functionality that phk wanted,
and why he requested it of cpp rather than unifdef.

-- 
Matthew Emmerton      || matt@gsicomp.on.ca
GSI Computer Services || http://www.gsicomp.on.ca

On Mon, 5 Nov 2001, David O'Brien wrote:

> On Sat, Nov 03, 2001 at 10:15:00AM +0100, Poul-Henning Kamp wrote:
> > In particular it doesn't understand lines like:
> > 	#if defined(foo) || defined(bar)
> > 
> > Is there a volunteer who would attempt to add the unifdef functionality
> > to cpp ?
> 
> Concidering that cpp is vendor software, there would need to be a strong
> case for it.  What is wrong with just fixing unifdef(1) itself?
> 
> -- 
> -- David  (obrien@FreeBSD.org)
> 
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