From: Sam Ravnborg <sam@ravnborg.org>
Date: Thu, 04 Aug 2005 19:28:38 GMT
Subject: Re: bisect gives strange answer
Message-ID: <20050804192838.GB26714@mars.ravnborg.org>
In-Reply-To: <E1E0jiv-0003c4-00@skye.ra.phy.cam.ac.uk>

> 
> 1. The kernel Makefiles ar do not understand every subtle dependency.
>    So they might get confused by updating to different tree states (as
>    the bisect progresses) because those updates change Makefiles and
>    include files.  In other words, I should have done 'make clean' or
>    'make mrproper' before each kernel compile.

If you see any sort of evidence that this would hold true I really like
to know.
The current build system is only known to fail if a changed file gets a
timestamp that is not equal to 'now'. Some braindead SCM uses the
timestamp of the chekin.

There has been put a tremendous effort in tracking each and every subtle
dependeny - and if something is missing then it ought to be fixed.

	Sam