portage-ng --fetchonly
>>> Emerging : portage://sci-libs/med-4.1.1-r4: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
│ download portage://sci-libs/med-4.1.1-r4
│ └─ file ─┤ 48.17 Mb med-4.1.1.tar.gz
Total: 3 actions (1 useflag, 2 downloads), grouped into 2 steps.
88.35 Mb to be downloaded.
>>> Assumptions taken during proving & planning:
USE flag change (1 package):
Add to /etc/portage/package.use:
sci-libs/hdf5 -hl