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DateWed, 14 Sep 2005 19:04:33 +0200
FromSam Ravnborg <>
SubjectRe: [PATCH] Permanently fix kernel configuration include mess (was: Missing #include <config.h>)
On Wed, Sep 14, 2005 at 01:39:44AM -0700, Andrew Morton wrote:
> Russell King <rmk+lkml@arm.linux.org.uk> wrote:
> >
> > LINUXINCLUDE := -Iinclude \
> > - $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include)
> > + $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \
> > + -imacros include/linux/autoconf.h
>
> This means that over time the kernel will fail to compile correctly without
> `-imacros include/linux/autoconf.h'.
>
> That's OK for the kernel, but not for out-of-tree stuff. Those drivers
> will need to add the new gcc commandline option too.
Out-of-tree stuff are broken if they do not use kbuild.
And for 2.6 many out-of-tree modules has started doing this - especially
when they realised how easy it was (modulos backward compatibility
stuff).

Sam
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