During a discussion on usenet, found out that the ossp package (unless
specifically selected) is only installed if the windowmaker desktop environment
is installed on Mageia 6 systems. Haven't checked cauldron, but expect it's the
same.

As per the comments in /etc/modprobe.d/snd-oss.conf from the sound-scripts
package, the snd-oss modules are blacklisted in order to allow providing oss
support via the osspd deamon.

While the sound-scripts package is installed on all Mageia systems by default,
the ossp package is not.

Easiest way to fix this would be to add the ossp package as a requires in the
pulseaudio and likely also in one of the alsaplayer packages.

Workaround is to manually install the ossp package for people running programs
that need oss sound support.