I noticed I don't have printers panel in gnome-control-center because looks like it requires samba (!?), will need to review this in the near future
Even with samba installed the printer panel fails to build.
The samba ebuild doesn't install the pkgconfig files (gnome-control-center needs smbclient.pc)
see also https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1129110
+*gnome-control-center-126.96.36.199 (12 May 2013)
+ 12 May 2013; Pacho Ramos <email@example.com>
+ +gnome-control-center-188.8.131.52.ebuild, metadata.xml:
+ Version bump, prevent false positives with configure options checking, make
+ modemmanager optional (#463852 by Evgeny Bobkin and poncho), smbclient needed
+ for printers panel (#463762), fix bash-completion dir to Gentoo path (#465094
+ by poncho).