Re: [PATCH] kconfig/menuconfig: use TAILQ instead of CIRCLEQ

From: Tetsuo Handa
Date: Sat Oct 20 2012 - 10:44:02 EST


Michal Marek wrote:
> On 19.10.2012 14:10, Tetsuo Handa wrote:
> > Yann E. MORIN wrote:
> >> So, switch to using TAILQ instead, which are more portable.
> [...]
> > Excuse me, but your patch does not solve my problem because kconfig started
> > using macros which does not exist in "@(#)queue.h 8.3 (Berkeley) 12/13/93".
> > Kconfig still fails after applying your patch:
> >
> > HOSTCC scripts/kconfig/mconf.o
> > scripts/kconfig/mconf.c: In function `update_text':
> > scripts/kconfig/mconf.c:326: warning: implicit declaration of function `TAILQ_FOREACH'
> [...]
> > scripts/kconfig/mconf.c:378: warning: implicit declaration of function `TAILQ_HEAD_INITIALIZER'
> >
> > So, would you add something which looks like "sed -e 's/CIRCLEQ/TAILQ/g'" upon
> > https://lkml.org/lkml/2012/10/16/274 ?
>
> Could you reduce that patch to not copy all of queue.h?
> TAILQ_HEAD_INITIALIZER can be replaced by a TAILQ_INIT() call after
> variable definitions, and we do not need stuff like
> TAILQ_FOREACH_REVERSE. The other option is to reimplement the needed
> operations under a different name, so that people don't accidentally use
> other macros that are missing in old queue.h revisions.
>
> Michal
>

I'm fine to manually add missing macros to /usr/include/sys/queue.h of
"@(#)queue.h 8.3 (Berkeley) 12/13/93" in my environment instead of adding
define-as-needed lines to scripts/kconfig/expr.h, for missing macros are
available with that of "@(#)queue.h 8.5 (Berkeley) 8/20/94".
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