Rene Herman wrote:
> Hi Kai, Sam.
>
> I have a single file foo.c that I want to generate two (ALSA) modules
> from, snd-foo2000.ko and snd-foo2001.ko, by compiling with either
> FOO2000 or FOO2001 defined.
>
> I can do this, and ALSA does this a few times, by providing dummy
> foo2000.c and foo2001.c files, like:
>
> === foo2000.c
> #define FOO2000
> #include "foo.c"
> ===
>
> and a regular Makefile
>
> ===
> foo2000-objs := foo2000.o
> foo2001-objs := foo2001.o
>
> obj-$(CONFIG_SND_FOO2000) += snd-foo2000.o
> obj-$(CONFIG_SND_F002001) += snd-foo2001.o
> ===
>
> That #include is a little lame though. Is there a nicer way? I noticed
> the per-file CFLAGS, but given that it's one source file for both, that
> doesn't fit.
>
The stub source file is usually considered a good way to do this.
-hpa
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