>>> Emerging : portage://sci-libs/matio-1.5.23:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ download  portage://sci-libs/matio-1.5.23
             │           └─ file ─┤ 9.65 Mb  	 matio-1.5.23.tar.gz

 └─step  2─┤ install   portage://sci-libs/matio-1.5.23
             │           └─ conf ─┤ USE = "-doc -examples -hdf5 -sparse"
             │                    │ SLOT = "0/11"

 └─step  3─┤ run     portage://sci-libs/matio-1.5.23

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