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Hello,
I'm one of the ALSA Debian maintainers, and some weeks ago I looked into updating our ALSA packages to 1.2.1.
I quickly noticed there's been some fundamental change to libasound2, one that appears to break ABI and should have warranted an soname bump at least.
With the split of the snd_tplg API to the new libatopology2, libasound2 has been left missing that part of the API that was part of the asound.h header, etc. This could have been a somewhat lesser issue if libasound2 linked to libatopology, but unfortunately this goes in the other direction, so the ABI and API breakage is not avoided.
I cannot update alsa-lib in this state. I could hack around and patch it to reinstate the missing api in libasound, but this sounds like pain and suffering for everyone involved. How should we move forward with this?
I am sorry I only come up with this 2 months after the release when I had identified the problem many weeks ago, I've been extremely busy.
Thanks, Jordi