>>> Emerging : portage://sci-libs/hdf5-2.2.0:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ useflag portage://sci-libs/hdf5-2.2.0 (-hl)

 └─step  2─┤ download  portage://sci-libs/hdf5-2.2.0
             │           └─ file ─┤ 40.18 Mb  	 hdf5-2.2.0.tar.gz

Total: 2 actions (1 useflag, 1 download), grouped into 2 steps.
       40.18 Mb to be downloaded.


>>> Assumptions taken during proving & planning:

  USE flag change (1 package):
  Add to /etc/portage/package.use:
    sci-libs/hdf5 -hl