portage-ng --merge
>>> Emerging : portage://sci-mathematics/gp2c-0.0.14:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://sci-mathematics/gp2c-0.0.14
│ └─ file ─┤ 882.56 Kb gp2c-0.0.14.tar.gz
│ download portage://sci-mathematics/pari-2.17.4
│ └─ file ─┤ 5.09 Mb pari-2.17.4.tar.gz
└─step 2─┤ install portage://sci-mathematics/pari-2.17.4
│ └─ conf ─┤ USE = "X* threads* -data -doc -examples -fltk -test"
│ │ SLOT = "0/9"
└─step 3─┤ run portage://sci-mathematics/pari-2.17.4
└─step 4─┤ install portage://sci-mathematics/gp2c-0.0.14
│ └─ conf ─┤ USE = "-test"
└─step 5─┤ run portage://sci-mathematics/gp2c-0.0.14
Total: 6 actions (2 downloads, 2 installs, 2 runs), grouped into 5 steps.
5.95 Mb to be downloaded.