>>> Emerging : portage://sci-libs/alglib-3.20.0:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ download  portage://sci-libs/alglib-3.20.0
             │           └─ file ─┤ 3.17 Mb  	 alglib-3.20.0.cpp.gpl.tgz

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