portage-ng --merge
>>> Emerging : portage://dev-lang/mercury-22.01.1-r1:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://dev-lang/mercury-22.01.1-r1
│ └─ file ─┤ 4.86 Kb mercury-22.01.1-gentoo-patchset-2.tar.gz
│ │ 46.69 Mb mercury-srcdist-22.01.1.tar.gz
└─step 2─┤ install portage://dev-lang/mercury-22.01.1-r1
│ └─ conf ─┤ USE = "readline threads* -debug -doc -emacs -examples -java -mono -profile -test -trail"
└─step 3─┤ run portage://dev-lang/mercury-22.01.1-r1
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
46.69 Mb to be downloaded.