portage-ng --merge
>>> Emerging : portage://dev-util/tkdiff-5.7:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://dev-lang/tk-8.6.17
│ └─ file ─┤ 4.38 Mb tk8.6.17-src.tar.gz
│ download portage://dev-util/tkdiff-5.7
│ └─ file ─┤ 283.36 Kb tkdiff-5-7.zip
└─step 2─┤ install portage://dev-lang/tk-8.6.17
│ └─ conf ─┤ USE = "threads* truetype* -debug -test -xscreensaver"
│ │ SLOT = "0/8.6"
└─step 3─┤ run portage://dev-lang/tk-8.6.17
└─step 4─┤ install portage://dev-util/tkdiff-5.7
└─step 5─┤ run portage://dev-util/tkdiff-5.7
Total: 6 actions (2 downloads, 2 installs, 2 runs), grouped into 5 steps.
4.66 Mb to be downloaded.