portage-ng --merge
>>> Emerging : portage://app-misc/blink1-1.98-r3:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://app-misc/blink1-1.98-r3
│ └─ file ─┤ 28.08 Mb blink1-1.98.tar.gz
│ download portage://dev-libs/hidapi-0.15.0
│ └─ file ─┤ 355.31 Kb hidapi-0.15.0.tgz
│ download portage://dev-libs/libusb-1.0.30
│ └─ file ─┤ 640.73 Kb libusb-1.0.30.tar.bz2
└─step 2─┤ install portage://dev-libs/libusb-1.0.30
│ └─ conf ─┤ USE = "-debug -doc -examples -static-libs -test -udev -verify-sig"
│ │ SLOT = "1"
└─step 3─┤ run portage://dev-libs/libusb-1.0.30
└─step 4─┤ install portage://virtual/libusb-1-r2
│ └─ conf ─┤ USE = "-udev"
│ │ SLOT = "1"
└─step 5─┤ run portage://virtual/libusb-1-r2
└─step 6─┤ install portage://dev-libs/hidapi-0.15.0
│ └─ conf ─┤ USE = "-doc"
└─step 7─┤ run portage://dev-libs/hidapi-0.15.0
└─step 8─┤ install portage://app-misc/blink1-1.98-r3
│ └─ conf ─┤ USE = "tool -doc -examples -mini-tool -server"
└─step 9─┤ run portage://app-misc/blink1-1.98-r3
Total: 11 actions (3 downloads, 4 installs, 4 runs), grouped into 9 steps.
29.05 Mb to be downloaded.