Date: Wed, 3 Jul 2002 10:56:10 -0700 (PDT) From: Matthew Dillon <dillon@apollo.backplane.com> To: Dag-Erling Smorgrav <des@ofug.org> Cc: Garance A Drosihn <drosih@rpi.edu>, Adrian Penisoara <ady@freebsd.ady.ro>, freebsd-stable@FreeBSD.ORG, bde@FreeBSD.ORG, obrien@FreeBSD.ORG, dillon@FreeBSD.ORG Subject: Re: __FBSDID breaks buildworld upgrading Message-ID: <200207031756.g63HuAlp013423@apollo.backplane.com> References: <Pine.BSF.4.10.10207031724160.48299-100000@ady.warpnet.ro> <xzpk7oc6dlz.fsf@flood.ping.uio.no> <p05111722b948d5ee54eb@[128.113.24.47]> <xzppty44tdi.fsf@flood.ping.uio.no>
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You beat me to it, I was just about to comment that a better way would
be to do the equivalent #define __FBSDID() to empty on the command line
as part of the build process.
__FBSDID() exists in part to avoid having to have #ifdef's all over the
place.
-Matt
Matthew Dillon
<dillon@backplane.com>
:Garance A Drosihn <drosih@rpi.edu> writes:
:> We talk about providing support for older releases of FreeBSD, but
:> here we are moving to a world where EVERY SINGLE SOURCE FILE in
:> the systsem will need some kind of futzing around with to compile
:> it on systems which are just 9 months old (as it looks like __FBSDID
:> was MFC'ed into -stable on Sept 28, 2001).
:
:Actually, no. I've backed out my commit and made a different commit
:to bsd.sys.mk that solves this in a generic way.
:
:> I really do not mean this as an insult to anyone, but I think we
:> are so fascinated with the few real advantages of __FBSDID (such
:> as getting the RCS-ids into a separate ELF section) that we are
:> sinking far too much effort into trying to make it work. Are
:> the benefits really worth all that effort?
:
:Yes. Amongst other things, it allows people to easily determine what
:sources a particular binary or library was built from, which again
:allows admins to make much more informed decisions about potential
:security vulnerabilities in their systems. It also helps debug
:problems reported by inexperienced users.
:
:DES
:--
:Dag-Erling Smorgrav - des@ofug.org
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