Re: Build error; sound/built-in.o:(.data+0x388): undefined reference to `snd_pcm_lib_ioctl'

[Takashi Iwai <tiwai@suse.de>]

At Mon, 28 Apr 2008 01:20:08 +0200,
Jesper Juhl wrote:
> 
> FYI
> 
> With the attached .config I'm getting the following build error :
> ...
>   GEN     .version
>   CHK     include/linux/compile.h
>   UPD     include/linux/compile.h
>   CC      init/version.o
>   LD      init/built-in.o
>   LD      .tmp_vmlinux1
> sound/built-in.o: In function `pcsp_suspend':
> /home/juhl/kernel/linux-2.6/sound/drivers/pcsp/pcsp.c:201: undefined
> reference to `snd_pcm_suspend_all'
> sound/built-in.o: In function `snd_pcsp_playback_hw_free':
> /home/juhl/kernel/linux-2.6/sound/drivers/pcsp/pcsp_lib.c:221:
> undefined reference to `snd_pcm_lib_free_pages'
> sound/built-in.o: In function `snd_pcsp_playback_hw_params':
> /home/juhl/kernel/linux-2.6/sound/drivers/pcsp/pcsp_lib.c:209:
> undefined reference to `snd_pcm_lib_malloc_pages'
> sound/built-in.o: In function `snd_pcm_stream_lock':
> /home/juhl/kernel/linux-2.6/include/sound/pcm.h:569: undefined
> reference to `snd_pcm_link_rwlock'
> sound/built-in.o: In function `snd_pcm_stream_unlock':
> /home/juhl/kernel/linux-2.6/include/sound/pcm.h:576: undefined
> reference to `snd_pcm_link_rwlock'
> /home/juhl/kernel/linux-2.6/include/sound/pcm.h:576: undefined
> reference to `snd_pcm_link_rwlock'
> sound/built-in.o: In function `pcsp_do_timer':
> /home/juhl/kernel/linux-2.6/sound/drivers/pcsp/pcsp_lib.c:130:
> undefined reference to `snd_pcm_period_elapsed'
> sound/built-in.o: In function `snd_pcsp_new_pcm':
> /home/juhl/kernel/linux-2.6/sound/drivers/pcsp/pcsp_lib.c:320:
> undefined reference to `snd_pcm_new'
> /home/juhl/kernel/linux-2.6/sound/drivers/pcsp/pcsp_lib.c:324:
> undefined reference to `snd_pcm_set_ops'
> /home/juhl/kernel/linux-2.6/sound/drivers/pcsp/pcsp_lib.c:331:
> undefined reference to `snd_pcm_lib_preallocate_pages_for_all'
> sound/built-in.o:(.data+0x388): undefined reference to `snd_pcm_lib_ioctl'
> make: *** [.tmp_vmlinux1] Error 1

Does the patch below fix the problem?


thanks,

Takashi

---
diff --git a/sound/drivers/Kconfig b/sound/drivers/Kconfig
index fe85af1..a78a8d0 100644
--- a/sound/drivers/Kconfig
+++ b/sound/drivers/Kconfig
@@ -8,6 +8,8 @@ config SND_PCSP
 	tristate "Internal PC speaker support"
 	depends on X86_PC && HIGH_RES_TIMERS
 	depends on INPUT
+	depends on SND
+	select SND_PCM
 	help
 	  If you don't have a sound card in your computer, you can include a
 	  driver for the PC speaker which allows it to act like a primitive