>>> Emerging : portage://sci-mathematics/otter-3.3-r4:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ download  portage://sci-mathematics/otter-3.3-r4
             │           └─ file ─┤ 2.68 Mb  	 otter-3.3.tar.gz

Total: 1 action (1 download), grouped into 1 step.
       2.68 Mb to be downloaded.