>>> Emerging : portage://dev-libs/mathjax-2.7.7-r1:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ download  portage://dev-libs/mathjax-2.7.7-r1
             │           └─ file ─┤ 24.17 Mb  	 mathjax-2.7.7.tar.gz

 └─step  2─┤ install   portage://dev-libs/mathjax-2.7.7-r1
             │           └─ conf ─┤ USE = "-doc -examples"

 └─step  3─┤ run     portage://dev-libs/mathjax-2.7.7-r1

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