[Samba] acl_xattr.so

[jimc]

HI. village idiot here.

I have tried to set up Samba4 servers on several distros that have it 
preinstalled. this week. Mint, OpenSuse, and Ubuntu server all fail 
during domain provisioning with the message 'error loading 
...acl_xattr.so: cannot open...No such file or directory.

I have changed etc/fstab to include user_xattr and acl.

What in the wild, wild world of sports is going on?