portage-ng --merge
>>> Emerging : portage://sci-astronomy/swarp-2.41.5:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://sci-astronomy/swarp-2.41.5
│ └─ file ─┤ 433.63 Kb swarp-2.41.5.tar.gz
└─step 2─┤ install portage://sci-astronomy/swarp-2.41.5
│ └─ conf ─┤ USE = "threads* -cfitsio -doc"
└─step 3─┤ run portage://sci-astronomy/swarp-2.41.5
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
433.63 Kb to be downloaded.