portage-ng --merge
>>> Emerging : portage://dev-lang/perl-5.42.2:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://dev-lang/perl-5.42.2
│ └─ file ─┤ 16.71 Kb perl-5.42.0-patches-1.tar.xz
│ │ 13.81 Mb perl-5.42.2.tar.xz
│ │ 116.70 Kb perl-cross-1.6.4.tar.gz
└─step 2─┤ update portage://dev-lang/perl-5.42.2 (replaces pkg://dev-lang/perl-5.42.0-r1)
│ └─ conf ─┤ USE = "gdbm* -berkdb* -doc -minimal"
│ │ PERL_FEATURES = "ithreads -quadmath"
│ │ SLOT = "0/5.42"
└─step 3─┤ run portage://dev-lang/perl-5.42.2
Total: 3 actions (1 download, 1 update, 1 run), grouped into 3 steps.
13.94 Mb to be downloaded.