From owner-freebsd-hackers@FreeBSD.ORG  Sat Mar  6 23:04:10 2004
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Date: Sat, 6 Mar 2004 23:04:09 -0800
From: Marcel Moolenaar <marcel@xcllnt.net>
To: Tim Kientzle <tim@kientzle.com>
Message-ID: <20040307070409.GB2045@dhcp01.pn.xcllnt.net>
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cc: hackers@freebsd.org
Subject: Re: Style(9) and portability
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On Sat, Mar 06, 2004 at 12:18:21PM -0800, Tim Kientzle wrote:
> One of the recommendations in style(9) is
> inherently non-portable.  I'm trying
> to ensure that the new code I'm writing
> for FreeBSD is portable to other systems,
> so I've been scratching my head over
> how to deal with the version ID code
> that is supposed to apear as the first
> two lines of any FreeBSD source file:
> 
> #include <sys/cdefs.h>
> __FBSDID("$FreeBSD$");
> 
> Clearly, I cannot reasonably assume that all
> platforms define a __FBSDID macro in
> sys/cdefs.h.

Our compiler defines __FreeBSD__. You might be able to do:

#ifdef __FreeBSD__
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#endif

The advantage of something like this is that you don't spam the
library on non-FreeBSD systems. Just a thought...

-- 
 Marcel Moolenaar	  USPA: A-39004		 marcel@xcllnt.net