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SubjectRe: [PATCH] Permanently fix kernel configuration include mess
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On Tue, 2005-09-13 at 15:10 -0400, Brian Gerst wrote:
> Russell King wrote:
> > On Tue, Sep 13, 2005 at 05:59:54PM +0100, Joern Engel wrote:
> >
> >>On Tue, 13 September 2005 15:50:12 +0100, Russell King wrote:
> >>
> >>>Subject: [KBUILD] Permanently fix kernel configuration include mess.
> >>>
> >>>Include autoconf.h into every kernel compilation via the gcc
> >>>command line using -imacros. This ensures that we have the
> >>>kernel configuration included from the start, rather than
> >>>relying on each file having #include <linux/config.h> as
> >>>appropriate. History has shown that this is something which
> >>>is difficult to get right.
> >>>
> >>>Since we now include the kernel configuration automatically,
> >>>make configcheck becomes meaningless, so remove it.
> >>>
> >>>Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
> >>
> >>If it helps:
> >>Signed-off-by: Joern Engel <joern@wh.fh-wedel.de>
> >
> >
> > Might help more if I copied (or sent this to) akpm. 8)
> >
> > diff --git a/Makefile b/Makefile
> > --- a/Makefile
> > +++ b/Makefile
> > @@ -346,7 +346,8 @@ AFLAGS_KERNEL =
> > # Use LINUXINCLUDE when you must reference the include/ directory.
> > # Needed to be compatible with the O= option
> > LINUXINCLUDE := -Iinclude \
> > - $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include)
> > + $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \
> > + -imacros include/linux/autoconf.h
> >
> > CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE)
> >
> > @@ -1247,11 +1248,6 @@ tags: FORCE
> > # Scripts to check various things for consistency
> > # ---------------------------------------------------------------------------
> >
> > -configcheck:
> > - find * $(RCS_FIND_IGNORE) \
> > - -name '*.[hcS]' -type f -print | sort \
> > - | xargs $(PERL) -w scripts/checkconfig.pl
> > -
> > includecheck:
> > find * $(RCS_FIND_IGNORE) \
> > -name '*.[hcS]' -type f -print | sort \
> >
> >
>
> The patch should also remove the checkconfig.pl script.

That could probably be done in a later cleanup patch that removes all
"#include <linux/config.h>" statements as well. Sounds like a job for
the kernel janitors project.

josh

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