From owner-freebsd-current  Thu Nov 21 14:48: 6 2002
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Date: Thu, 21 Nov 2002 14:48:01 -0800
From: David Schultz <dschultz@uclink.Berkeley.EDU>
To: Kris Kennaway <kris@obsecurity.org>
Cc: John Baldwin <jhb@FreeBSD.ORG>,
	Terry Lambert <tlambert2@mindspring.com>, current@FreeBSD.ORG,
	"M. Warner Losh" <imp@bsdimp.com>, Ruslan Ermilov <ru@FreeBSD.ORG>
Subject: Re: Why isn't NOCLEAN the default? (was: Re: Cross-Development with NetBSD)
Message-ID: <20021121224800.GD6062@HAL9000.homeunix.com>
Mail-Followup-To: Kris Kennaway <kris@obsecurity.org>,
	John Baldwin <jhb@FreeBSD.ORG>,
	Terry Lambert <tlambert2@mindspring.com>, current@FreeBSD.ORG,
	"M. Warner Losh" <imp@bsdimp.com>, Ruslan Ermilov <ru@FreeBSD.ORG>
References: <3DDD2CB8.7E080912@mindspring.com> <XFMail.20021121143119.jhb@FreeBSD.org> <20021121220220.GB6062@HAL9000.homeunix.com> <20021121223608.GA20967@rot13.obsecurity.org>
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Thus spake Kris Kennaway <kris@obsecurity.org>:
> > I have long wondered why NOCLEAN isn't the default.  There seem to
> > be a few cases where it doesn't DTRT for kernel builds, but it
> > seems a bit conservative to make incremental world builds require
> > that an undocumented variable be defined.  Any ideas?
> 
> It often causes problems during upgrades (but is usually fine when
> just rebuilding a non-updated tree)

Sounds reasonable.  Maybe it should be documented in build(7), though.

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