portage-ng --merge
>>> Emerging : portage://net-libs/libupnpp-1.0.4:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://net-libs/libnpupnp-6.3.0
│ └─ file ─┤ 454.54 Kb libnpupnp-6.3.0.tar.gz
│ download portage://net-libs/libupnpp-1.0.4
│ └─ file ─┤ 128.66 Kb libupnpp-1.0.4.tar.gz
└─step 2─┤ install portage://net-libs/libnpupnp-6.3.0
└─step 3─┤ run portage://net-libs/libnpupnp-6.3.0
└─step 4─┤ install portage://net-libs/libupnpp-1.0.4
└─step 5─┤ run portage://net-libs/libupnpp-1.0.4
Total: 6 actions (2 downloads, 2 installs, 2 runs), grouped into 5 steps.
583.20 Kb to be downloaded.