portage-ng --merge
>>> Emerging : portage://acct-user/apache-0-r4:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ install portage://acct-group/apache-0-r3
└─step 2─┤ run portage://acct-group/apache-0-r3
└─step 3─┤ install portage://acct-user/apache-0-r4
│ └─ conf ─┤ USE = "-icingaweb2 -mgraph"
└─step 4─┤ run portage://acct-user/apache-0-r4
Total: 4 actions (2 installs, 2 runs), grouped into 4 steps.
0.00 Kb to be downloaded.