From owner-freebsd-current  Tue Jan 27 18:54:55 1998
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Date: Tue, 27 Jan 1998 18:56:25 -0800 (PST)
From: Alex <garbanzo@hooked.net>
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To: Julian Elischer <julian@whistle.com>
cc: current <current@FreeBSD.ORG>
Subject: Re: PATCH: if_de.c #ifdef based version encoding
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On Tue, 27 Jan 1998, Julian Elischer wrote:

> David Greenman wrote:
> > 
> > >The value of the manifest constant __FreeBSD__ is derived from the
> > >compiler tools and not from the kernel being built.
> > >
> > >In other words, the value of __FreeBSD__ comes from the version of the
> > >OS the tools were built on, not from the OS that's running or the one
> > >that is being targeted.
> > >
> > >This means that if I build a v3 kernel using a v2 system's tools, the
> > >"#if __FreeBSD__ >= 3" and "#if defined(__FreeBSD__) && __FreeBSD__ >= 3"
> > >will not test true, even though that is, in fact, what I am building.
> > >
> > >
> > >Version information should not be encoded in #ifdef's; that is what
> > >branch tags are for.  If I can check this code out, implicitly, I am
> > >building a 3+ system.  The "#if" tests are bogus.
> > >
> > >This patch allows people to compile v3 kernels containing if_de.c on v2
> > >systems.


What about osreldate.h??  Doesn't that include a versionish number of
sorts for the kernel/tools being built?

Linux: The Microsoft Windows(tm) of the Unix(tm) world.

- alex