portage-ng --merge
>>> Emerging : portage://app-text/qpdf-12.4.2:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://app-text/qpdf-12.4.2
│ └─ file ─┤ 18.81 Mb qpdf-12.4.2.tar.gz
└─step 2─┤ install portage://app-text/qpdf-12.4.2
│ └─ conf ─┤ USE = "-doc -examples -gnutls -test -verify-sig -zopfli"
│ │ SLOT = "0/12.1"
└─step 3─┤ run portage://app-text/qpdf-12.4.2
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
18.81 Mb to be downloaded.