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

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

[ebuild  N     ] net-misc/ptpd-2.3.1-r2::gentoo  USE="pcap statistics -debug -experimental -slave-only -snmp" 864 KiB

Total: 1 package (1 new), Size of downloads: 864 KiB