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Date:      Tue, 1 Oct 2002 17:03:31 -0400 (EDT)
From:      John Mills <jmmills@telocity.com>
To:        "Gary W. Swearingen" <swear@attbi.com>
Cc:        Giorgos Keramidas <keramida@ceid.upatras.gr>, John Mills <john.m.mills@alum.mit.edu>, FreeBSD-questions <freebsd-questions@FreeBSD.ORG>
Subject:   Re: Q: continuing interrupted 'make buildworld'
Message-ID:  <Pine.LNX.4.21.0210011659120.5173-100000@otter.mills-atl.com>
In-Reply-To: <adofadx4uk.fad@localhost.localdomain>

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Gary -

On 1 Oct 2002, Gary W. Swearingen wrote:

> IIRC, when I've done "make buildkernel" (maybe "buildworld") a second
> time (eg, to do benchmarks with two BIOS settings), the thing rebuilt
> the whole kernel again.  I've always wondered why.  I thought "make" 
> was supposed to use old files when possible.

I suspect the target 'buildworld' has as a condition the target 'clean' or
something similar. I started looking for the target definitions, but
didn't find them.

Like, in a high-level 'Makefile':
...
buildworld: clean [...]

...

as it may also have:
...
installkernel: buildkernel [...]

...

 - John Mills


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