>>> Emerging : portage://sci-mathematics/topcom-0.17.8-r3:run?{[]}

These are the packages that would be merged, in order:

Calculating dependencies... done!

 └─step  1─┤ download  portage://sci-libs/cddlib-094n
             │           └─ file ─┤ 1.32 Mb  	 cddlib-0.94n.tar.gz
             │ download  portage://sci-mathematics/topcom-0.17.8-r3
             │           └─ file ─┤ 8.58 Mb  	 TOPCOM-0_17_8.tgz
             │                    │ 18.80 Kb  	 TOPCOM-manual.html

 └─step  2─┤ install   portage://sci-libs/cddlib-094n
             │           └─ conf ─┤ USE = "-doc -examples -static-libs -tools"

 └─step  3─┤ run       portage://sci-libs/cddlib-094n

 └─step  4─┤ install   portage://sci-mathematics/topcom-0.17.8-r3
             │           └─ conf ─┤ USE = "-examples"

 └─step  5─┤ run     portage://sci-mathematics/topcom-0.17.8-r3

Total: 6 actions (2 downloads, 2 installs, 2 runs), grouped into 5 steps.
       9.91 Mb to be downloaded.