With some recent change in alsa upstream, the build stuff changed
and pulseaudio stopped picking these up, which resulted in
successful compilation but failed load of module-alsa-card.so,
which resulted in a loss of sound.
Reference: https://lists.opensuse.org/opensuse-factory/2019-04/msg00293.html
Cherry-picking the appropriate fix from upstream fixed the module.
Unfortunately, because of changed configure.ac, it is necessary
to rebuild the autotools definitions, which made it pick up some
extra host dependencies.
[ci skip]
f57bc7af6a