From: Keith Owens <kaos@ocs.com.au>
To: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Cc: Jun Sun <jsun@mvista.com>, linux-mips@linux-mips.org
Subject: Re: IDE module problem
Date: Thu, 12 Dec 2002 13:56:37 +1100 [thread overview]
Message-ID: <25550.1039661797@kao2.melbourne.sgi.com> (raw)
In-Reply-To: Your message of "Wed, 11 Dec 2002 18:20:30 BST." <Pine.GSO.3.96.1021211181032.22157L-100000@delta.ds2.pg.gda.pl>
On Wed, 11 Dec 2002 18:20:30 +0100 (MET),
"Maciej W. Rozycki" <macro@ds2.pg.gda.pl> wrote:
>On Wed, 11 Dec 2002, Jun Sun wrote:
>
>> > > This is because arch/mips/lib/Makefile says:
>> > >
>> > > obj-$(CONFIG_IDE) += ide-std.o ide-no.o
>> > [...]
>> > > 3) use some smart trick in Makefile so that we include those
>> > > two files only if CONFIG_IDE is 'y' or 'm'. (How?)
>> >
>> > obj-$(CONFIG_IDE_MODULE)
>>
>> This does not work. Apparently, CONFIG_IDE_MODULE is not created
>> for makefile part.
>
> Indeed -- my fault. Variables such as $(CONFIG_IDE) are four-state and
>for the module case they are simply set to "m". But then you can use
>"ifeq ($(CONFIG_IDE),m)". Another approach is to invent an additional
>variable automatically set to "y" whenever CONFIG_IDE is enabled.
obj-$(subst m,y,$(CONFIG_IDE)) += ide-std.o ide-no.o
ide-std.o ide-no.o are built in if CONFIG_IDE is m or y.
next prev parent reply other threads:[~2002-12-12 2:57 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-09 19:58 IDE module problem Jun Sun
2002-12-11 13:21 ` Maciej W. Rozycki
2002-12-11 16:49 ` Jun Sun
2002-12-11 17:20 ` Maciej W. Rozycki
2002-12-12 2:56 ` Keith Owens [this message]
2002-12-17 2:20 ` Jun Sun
2002-12-17 2:25 ` Keith Owens
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