These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.01 s (backtrack: 0/20).

[ebuild  N     ] net-mail/tpop3d-1.5.5-r5::gentoo  USE="gdbm pam sha1 ssl -authexternal -debug -flatfile -ldap -maildir -mbox -mysql -offensive -passwd -perl -postgres -shadow -tcpd" 279 KiB

Total: 1 package (1 new), Size of downloads: 279 KiB