linux-kernel - separate objdir Makefile regression in 2.6.24-rc*

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Message-ID: <20071213134841.GA25103@basil.nowhere.org>
Date:	Thu, 13 Dec 2007 14:48:41 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	sam@...nborg.org
Cc:	linux-kernel@...r.kernel.org
Subject: separate objdir Makefile regression in 2.6.24-rc*


2.6.24-rc5 doesn't seem to create Makefiles in empty obj dirs anymore

With 2.6.24-rc5:

% mkdir obj-test
% cd obj-test/
% make -C ../linux O=$(pwd) allnoconfig >/dev/null
grep: /home/lsrc/quilt/obj-test/Makefile: No such file or directory
% make
make: *** No targets specified and no makefile found.  Stop.
% 

With 2.6.23 this worked:

% mkdir obj-test
% cd obj-test/
% make -C ../linux-2.6.23 O=$(pwd) allnoconfig >/dev/null
% make
make -C /home/lsrc/linux-2.6.23 O=/home/lsrc/obj-test
  GEN     /home/lsrc/obj-test/Makefile
scripts/kconfig/conf -s arch/x86_64/Kconfig
  Using /home/lsrc/linux-2.6.23 as source for kernel
...


-Andi
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