portage-ng --merge
>>> Emerging : portage://sci-libs/ginkgo-1.10.0:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://sci-libs/ginkgo-1.10.0
│ └─ file ─┤ 12.69 Mb ginkgo-1.10.0.tar.gz
└─step 2─┤ install portage://sci-libs/ginkgo-1.10.0
│ └─ conf ─┤ USE = "openmp -cuda -hwloc"
└─step 3─┤ run portage://sci-libs/ginkgo-1.10.0
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
12.69 Mb to be downloaded.