portage-ng --merge
>>> Emerging : portage://media-libs/libvisual-0.4.1:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://media-libs/libvisual-0.4.1
│ └─ file ─┤ 547.73 Kb libvisual-0.4.1.tar.bz2
└─step 2─┤ install portage://media-libs/libvisual-0.4.1
│ └─ conf ─┤ USE = "nls threads* -debug"
│ │ SLOT = "0.4"
└─step 3─┤ run portage://media-libs/libvisual-0.4.1
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
547.73 Kb to be downloaded.