Hi,
I could finally make it work: - The library corruption problem was due to a faulty symbolic link to an outdated library. - I could fix the linker problem by including "/usr/lib/libasound.so.2" in my link options - I still got an error sometimes on "snd_async_add_pcm_handler" but I replaced it by a second thread that fills the pcm buffer when needed. - The only remaining problem is "snd_device_name_hints" that crashes inexplicably one out of 5, but I'm working on it.
Thanks for your help!
Olivier
I wrote:
Thank you very much for your answer! I agree, it's definitely a link problem.
If my main module sends the addresses of the ALSA functions to the shared library, the test works. It then means that the shared library by itself doesn't know the right location of the functions, and that there is a problem during the run-time link.
It has then nothing to do with ALSA, but in my way of managing libraries. :) I have 15 years of experience in C, but only a couple of months on Linux, and sometimes I'm a bit lost.
To make ALSA work in my projects (I'm using Code:Blocks), I added to the link section all the .so libraries I found in /usr/lib/alsa-lib. Apparently it worked for stand-alone programs, but not for shared libraries.
Could you please tell me what I should add to my project (I'm using Code:Blocks) to make my programs use the current ALSA shared library in the system? I tried to build the static lib (./configure --enable-makeshared=no -- enable-static=yes) then the shared lib (./configure --enable-makeshared=no -- enable-static=yes) but it seems to have corrupted my system. My already compiled old programs don't work anymore, saying that "snd_async_add_pcm_handler" is not implemented.
Sorry if my request is out of the topic of this mailing-list. Please do not hesitate to tell me if so.