I update CUPS to net-print/cups-1.1.13-r1
Got a lot of errors:
lpadmin: add-printer failed: server-error-internal-error
and from the emerge log:
>>> Merging net-print/cups-1.1.13-r1 to /
>>> Safely unmerging already-installed instance...
<<< dir /var/spool/cups/tmp
<<< dir /var/spool/cups
--- !empty dir /var/spool
<<< dir /var/log/cups
--- !empty dir /var/log
Then CUPS can't work and no logs in /var/log/cups :-(
this is a known "feature" that may be addressed in future versions of portage.
Most of the time, this actually ends up being a good thing. I've tweaked the
cups ebuild (1.1.13-r2, now on cvs) so this problem should now be fixed.