portage-ng --merge
>>> Emerging : portage://media-video/xvattr-1.3-r4:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://media-video/xvattr-1.3-r4
│ └─ file ─┤ 80.33 Kb xvattr-1.3.tar.gz
│ download portage://x11-libs/libXv-1.0.13
│ └─ file ─┤ 274.86 Kb libXv-1.0.13.tar.xz
└─step 2─┤ install portage://x11-libs/libXv-1.0.13
│ └─ conf ─┤ USE = "-doc"
└─step 3─┤ run portage://x11-libs/libXv-1.0.13
└─step 4─┤ install portage://media-video/xvattr-1.3-r4
│ └─ conf ─┤ USE = "-gtk"
└─step 5─┤ run portage://media-video/xvattr-1.3-r4
Total: 6 actions (2 downloads, 2 installs, 2 runs), grouped into 5 steps.
355.20 Kb to be downloaded.