portage-ng --merge
>>> Emerging : portage://sci-mathematics/unuran-1.9.0:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://sci-mathematics/rngstreams-1.0.1
│ └─ file ─┤ 490.68 Kb rngstreams-1.0.1.tar.gz
│ download portage://sci-mathematics/unuran-1.9.0
│ └─ file ─┤ 3.63 Mb unuran-1.9.0.tar.gz
└─step 2─┤ install portage://sci-mathematics/rngstreams-1.0.1
│ └─ conf ─┤ USE = "-doc -examples"
└─step 3─┤ run portage://sci-mathematics/rngstreams-1.0.1
└─step 4─┤ install portage://sci-mathematics/unuran-1.9.0
│ └─ conf ─┤ USE = "rngstreams -doc -examples -gsl -prng"
└─step 5─┤ run portage://sci-mathematics/unuran-1.9.0
Total: 6 actions (2 downloads, 2 installs, 2 runs), grouped into 5 steps.
4.11 Mb to be downloaded.