portage-ng --merge
>>> Emerging : portage://sci-mathematics/frobby-0.9.0-r4:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://sci-mathematics/frobby-0.9.0-r4
│ └─ file ─┤ 832.54 Kb frobby_v0.9.0.tar.gz
└─step 2─┤ install portage://sci-mathematics/frobby-0.9.0-r4
│ └─ conf ─┤ USE = "-doc"
└─step 3─┤ run portage://sci-mathematics/frobby-0.9.0-r4
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
832.54 Kb to be downloaded.