The ALSA use case manager is a fairly recent addition, so make sure the ALSA modules can be used on systems that have an older version of ALSA.
e55f4ed alsa: Support ALSA without a use case manager
configure.ac | 13 ++++++++--
src/modules/alsa/alsa-ucm.c | 58 +++++++++++++++++++++++++++++++++++++++++++
src/modules/alsa/alsa-ucm.h | 4 +++
3 files changed, 73 insertions(+), 2 deletions(-)
Upstream: cgit.freedesktop.org