portage-ng --merge
>>> Emerging : portage://media-libs/game-music-emu-0.6.4:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://media-libs/game-music-emu-0.6.4
│ └─ file ─┤ 335.63 Kb libgme-0.6.4-src.tar.gz
└─step 2─┤ install portage://media-libs/game-music-emu-0.6.4
│ └─ conf ─┤ USE = "-test"
└─step 3─┤ run portage://media-libs/game-music-emu-0.6.4
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
335.63 Kb to be downloaded.