portage-ng --merge
>>> Emerging : portage://dev-libs/boehm-gc-8.2.8:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://dev-libs/boehm-gc-8.2.8
│ └─ file ─┤ 1.16 Mb gc-8.2.8.tar.gz
│ download portage://dev-libs/libatomic_ops-7.10.0
│ └─ file ─┤ 530.58 Kb libatomic_ops-7.10.0.tar.gz
└─step 2─┤ install portage://dev-libs/libatomic_ops-7.10.0
└─step 3─┤ run portage://dev-libs/libatomic_ops-7.10.0
└─step 4─┤ install portage://dev-libs/boehm-gc-8.2.8
│ └─ conf ─┤ USE = "threads* large -cxx -static-libs"
└─step 5─┤ run portage://dev-libs/boehm-gc-8.2.8
Total: 6 actions (2 downloads, 2 installs, 2 runs), grouped into 5 steps.
1.68 Mb to be downloaded.