portage-ng --merge
>>> Emerging : portage://net-misc/bird-3.1.6:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://net-misc/bird-3.1.6
│ └─ file ─┤ 2.61 Mb bird-3.1.6.tar.gz
└─step 2─┤ install portage://acct-group/bird-0-r2
└─step 3─┤ run portage://acct-group/bird-0-r2
└─step 4─┤ install portage://acct-user/bird-0-r2
└─step 5─┤ run portage://acct-user/bird-0-r2
└─step 6─┤ install portage://net-misc/bird-3.1.6
│ └─ conf ─┤ USE = "client filecaps -custom-cflags -debug -libssh"
└─step 7─┤ run portage://net-misc/bird-3.1.6
Total: 7 actions (1 download, 3 installs, 3 runs), grouped into 7 steps.
2.61 Mb to be downloaded.