portage-ng --merge
>>> Emerging : portage://dev-libs/libevent-2.1.13:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://dev-libs/libevent-2.1.13
│ └─ file ─┤ 1.07 Mb libevent-2.1.13-stable.tar.gz
└─step 2─┤ update portage://dev-libs/libevent-2.1.13 (replaces pkg://dev-libs/libevent-2.1.12-r1)
│ └─ conf ─┤ USE = "ssl clock-gettime -debug -malloc-replacement -static-libs -test -verbose-debug -verify-sig"
│ │ SLOT = "0/2.1-7"
└─step 3─┤ run portage://dev-libs/libevent-2.1.13
Total: 3 actions (1 download, 1 update, 1 run), grouped into 3 steps.
1.07 Mb to be downloaded.