portage-ng --merge
>>> Emerging : portage://dev-lang/mlton-20180207:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://dev-lang/mlton-20180207
└─step 2─┤ install portage://dev-lang/mlton-20180207
│ └─ conf ─┤ USE = "-binary -bootstrap-smlnj -doc -pax-kernel -stage3"
│ │ SLOT = "0/20180207"
└─step 3─┤ run portage://dev-lang/mlton-20180207
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
0.00 Kb to be downloaded.