>>> Emerging : portage://dev-lang/nprolog-5.18:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ download  portage://dev-lang/nprolog-5.18
             │           └─ file ─┤ 5.13 Mb  	 nprolog-5.18.gh.tar.gz

 └─step  2─┤ install   portage://dev-lang/nprolog-5.18
             │           └─ conf ─┤ USE = "-doc"

 └─step  3─┤ run     portage://dev-lang/nprolog-5.18

Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
       5.13 Mb to be downloaded.