portage-ng --fetchonly
>>> Emerging : portage://sci-physics/reduze-2.4-r1:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://sci-libs/cln-1.3.7
│ └─ file ─┤ 1.28 Mb cln-1.3.7.tar.bz2
│ download portage://sci-mathematics/ginac-1.8.10
│ └─ file ─┤ 1.45 Mb ginac-1.8.10.tar.bz2
│ download portage://sci-physics/reduze-2.4-r1
│ └─ file ─┤ 656.04 Kb reduze-2.4.tar.gz
Total: 3 actions (3 downloads), grouped into 1 step.
3.36 Mb to be downloaded.