portage-ng --merge
>>> Emerging : portage://games-board/gnugo-3.9.1-r2:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://games-board/gnugo-3.9.1-r2
│ └─ file ─┤ 3.06 Mb gnugo-3.9.1.tar.gz
└─step 2─┤ install portage://games-board/gnugo-3.9.1-r2
│ └─ conf ─┤ USE = "readline"
└─step 3─┤ run portage://games-board/gnugo-3.9.1-r2
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
3.06 Mb to be downloaded.