libasound_module_ctl_empty.so - the phantom DLL

After today's upgrades I get: Quote:

[AO_ALSA] alsa-lib: dlmisc.c:226:(snd_dlsym_verify) unable to verify version for symbol snd_func_private_integer [AO_ALSA] alsa-lib: conf.c:4733:(_snd_config_evaluate) symbol snd_func_private_integer is not defined inside (null) [AO_ALSA] alsa-lib: conf.c:5233:(snd_config_expand) Evaluate error: No such device or address [AO_ALSA] alsa-lib: conf.c:3917:(snd_config_hook_load) Unable to expand filenames in the pre-load section [AO_ALSA] alsa-lib: conf.c:3739:(snd_config_hooks_call) function snd_config_hook_load_for_all_cards returned error: No such device or address [AO_ALSA] alsa-lib: control.c:1360:(snd_ctl_open_conf) Invalid type for CTL default definition [AO_ALSA] Mixer attach default error: Invalid argument [AO_ALSA] alsa-lib: dlmisc.c:339:(snd_dlobj_cache_get0) Cannot open shared library libasound_module_ctl_empty.so (/usr/lib64/alsa-lib/libasound_module_ctl_empty.so: cannot open shared object file: No such file or directory)

when I run mplayer. I can't find libasound_module_ctl_empty.so in any package. ldd reports no relevant unfound dependencies. mplayer works. A search of the Internet turns up no hits for libasound_module_ctl_empty.so .