I just tried installing alsa-driver-0.5.11 with
--with-debug=basic
for no particular reason, on linux x86 with a stock kernel.org 2.2.19 kernel.
They compiled OK, but "depmod" reported undefined symbols
_snd_magic_kcalloc
_snd_magic_kfree
in all the snd*.o modules.
After some digging, it turned out that the condition
for calling _snd_magic_kcalloc (in include/sndmagic.h) is
#ifdef CONFIG_SND_DEBUG
while the condition for defining it (in kernel/memory.h) is
#ifdef CONFIG_SND_DEBUG_MEMORY
I'm not sure what the right fix would be; should the top
few paragraphs of include/sndmagic.h (down to #define snd_magic_kfree ...)
be wrapped in #ifdef CONFIG_SND_DEBUG_MEMORY?
Of course the workaround is just to avoid --with-debug=basic,
but this misdependency is probably simple for an ALSA developer to fix.
When I omitted the --with-debug, everything worked nicely. It probably
would have worked with --with-debug=full too.
(I'm not subscribed to alsa-user and am not awaiting a response,
just posting this as a bug report.)
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