net-analyzer/tcpdump has a strong warning about samba printing support. As the 4.* versions already use eapis greater than 0, why don't you set the samba use-flag to disabled by default. IUSE="-samba" That way, most users would get the sane default of samba support disabled, and those who need it can still enable it via /etc/portage/package.use
Thank you for suggestion Matthias. Done in 4.0.1_pre20090709.