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From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no>
To: Doug Barton <dougb@FreeBSD.org>
References: <200912161717.nBGHHeQZ005541@svn.freebsd.org>
	<200912161541.53834.jhb@freebsd.org> <868wd0cyjd.fsf@ds4.des.no>
	<4B2C127A.8060509@FreeBSD.org>
Date: Mon, 21 Dec 2009 12:05:39 +0100
In-Reply-To: <4B2C127A.8060509@FreeBSD.org> (Doug Barton's message of "Fri, 18
	Dec 2009 15:38:34 -0800")
Message-ID: <86aaxcsi2k.fsf@ds4.des.no>
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Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org,
	src-committers@freebsd.org, Warner Losh <imp@freebsd.org>,
	John Baldwin <jhb@freebsd.org>
Subject: Re: svn commit: r200606 - in head/sys: compat/freebsd32 sys
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Doug Barton <dougb@FreeBSD.org> writes:
> Trying to look at this from the user perspective, it's kind of silly
> that if what I want is COMPAT5 I also need to add COMPAT<somethingelse>.
>
> I don't know the issues in the code so I don't know what the solution
> should be on the back end, but on the front end what needs to work is
> that I specify the compat level I want in my kernel config, then the
> code does what's necessary to make that work.

So basically

#ifdef FREEBSD_COMPAT4
#ifndef FREEBSD_COMPAT5
#define FREEBSD_COMPAT5
#endif
#endif

#ifdef FREEBSD_COMPAT5
#ifndef FREEBSD_COMPAT6
#define FREEBSD_COMPAT6
#endif
#endif

#ifdef FREEBSD_COMPAT6
#ifndef FREEBSD_COMPAT7
#define FREEBSD_COMPAT7
#endif
#endif

etc.

DES
--=20
Dag-Erling Sm=C3=B8rgrav - des@des.no