From: "Adam J. Richter" <adam@yggdrasil.com>
Date: Mon, 24 Feb 2003 22:33:39 -0800
Message-Id: <200302250633.WAA06979@adam.yggdrasil.com>
To: linux-kernel@vger.kernel.org
Subject: Replacement for "make SUBDIRS=...." in 2.5.63?
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1465
Lines: 30

	I see that if I do something like "make SUBDIRS=net/ipv4 modules",
I get warnings like:

*** Warning: Overriding SUBDIRS on the command line can cause inconsistencies
*** Uh-oh, you have stale module entries. You messed with SUBDIRS

	What is the proper way to rebuild just one subdirectory?  How
about for building externally provided modules?  Is this is a new
limitation of kbuild?  If so, I think it will reduce my productivity,
and probably developer productivity on average.  I need to rebuild
small sets of modules or core kernel subdirectories frequently.  I'd
like to know what benefits I get from this so that I can measure
whether this really saves me time somehow.

	I suspect that this was added to support putting module
dependencies into the ".ko" files, which might be underlying issue
that needs a cost/benefit review, but perhaps there is some other
factor that I'm just unaware of.

	Any answers to these questions would be appreciated.

Adam J. Richter     __     ______________   575 Oroville Road
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