>> you probably are calling alsa from a shared object -- try
>>
>> dlopen ("libasound.so", RTLD_LAZY | RTLD_GLOBAL);
>>
>> in your module's init function.
>
>The need for RTLD_GLOBAL is somewhat ugly, usually one wants to load
>plugins with RTLD_LOCAL.
the suggestion is not that *your* plugin should use RTLD_GLOBAL, but
that RTLD_GLOBAL needs to be used when alsa-lib is linked into the
address space.
if you don't use RTLD_GLOBAL, then the symbols in libasound are not
availble for subsequently-loaded dynamically linked code.
>Is there any reason ALSA can't do something like
>
> if (name == NULL) {
> Dl_info dlinfo;
> static int dummy;
> dladdr((void *) &dummy, &dlinfo);
> name = dlinfo.dli_fname;
> }
perhaps because this implementation of dlopen is platform specific?
the dladdr function and the dlinfo structure are not present in
my version of glibc, at least not as far as i can tell.
--p
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