portage-ng --merge
>>> Emerging : portage://dev-libs/jsoncpp-1.9.8:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://dev-libs/jsoncpp-1.9.8
│ └─ file ─┤ 214.91 Kb jsoncpp-1.9.8.tar.gz
└─step 2─┤ update portage://dev-libs/jsoncpp-1.9.8 (replaces pkg://dev-libs/jsoncpp-1.9.6-r2)
│ └─ conf ─┤ USE = "-doc -test"
│ │ SLOT = "0/27"
└─step 3─┤ run portage://dev-libs/jsoncpp-1.9.8
Total: 3 actions (1 download, 1 update, 1 run), grouped into 3 steps.
214.91 Kb to be downloaded.