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

Calculating dependencies ... done!
Dependency resolution took 1.00 s (backtrack: 0/20).

[ebuild  N     ] acct-group/inspircd-0-r3::gentoo  0 KiB
[ebuild  N     ] acct-user/inspircd-0-r3::gentoo  0 KiB
[ebuild  N     ] net-irc/inspircd-4.12.0-r1::gentoo  USE="sqlite ssl -argon2 -debug -gnutls -ldap -log-json -maxminddb -mysql -pcre2 -postgres -re2 -regex-posix -sslrehashsignal -syslog -tre" 993 KiB

Total: 3 packages (3 new), Size of downloads: 993 KiB