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Message-ID: <alpine.LNX.1.10.0809101610210.11310@fbirervta.pbzchgretzou.qr>
Date: Wed, 10 Sep 2008 16:15:17 -0400 (EDT)
From: Jan Engelhardt <jengelh@...ozas.de>
To: sam@...nborg.org
cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: kbuild: Unnecessary recompiles on path change
Hi,
I notice that my kernels get needlessy recompiled if I access the source
tree through a different directory. In other words, /lo/linux is the
kernel tree, and `mount --bind /lo /home/jengelh/lo` is in effect.
I see the absolute path being stored in .*.o.cmd files, which seems like
all the explanation I need. I do remember that I left a comment
when something like that was afloating:
http://www.nabble.com/-RFC-PATCH-3-6--kbuild:-convert-include-and-source-paths-td17064364.html
As of v2.6.27-rc4-263-g5697a99, there's no gcov in (at least there is no
such thing in my .config when bulit with ARCH=um), but the issue with
absolute paths exists.
Jan
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