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

Calculating dependencies ... done!
Dependency resolution took 1.13 s (backtrack: 0/20).

[ebuild  N     ] acct-group/nagios-0-r3::gentoo  0 KiB
[ebuild  N     ] acct-user/nagios-0-r3::gentoo  0 KiB
[ebuild  N     ] net-mail/mailutils-3.21::gentoo  USE="clients gdbm nls pam python (split-usr) ssl threads -berkdb -bidi -emacs -guile -kerberos -kyotocabinet -ldap -mysql -postgres -sasl -servers -static-libs -tcpd -test -tokyocabinet" GUILE_SINGLE_TARGET="3-0 -2-2" PYTHON_SINGLE_TARGET="python3_14 -python3_12 -python3_13" 3302 KiB
[ebuild  N     ] virtual/mailx-4::gentoo  0 KiB
[ebuild  N     ] net-analyzer/nagios-core-4.5.13::gentoo  USE="web -apache2 -classicui -lighttpd -vim-syntax" 2570 KiB

Total: 5 packages (5 new), Size of downloads: 5872 KiB