portage-ng --merge
>>> Emerging : portage://dev-perl/perl-headers-0.0.2:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://dev-perl/perl-headers-0.0.2
│ └─ file ─┤ 2.10 Kb perl-headers-0.0.2.tar.gz
└─step 2─┤ install portage://dev-perl/perl-headers-0.0.2
│ └─ conf ─┤ USE = "debug sizeof-warning"
└─step 3─┤ run portage://dev-perl/perl-headers-0.0.2
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
2.10 Kb to be downloaded.