portage-ng --merge
>>> Emerging : portage://dev-libs/OpenNI-1.5.7.10-r4:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://dev-libs/OpenNI-1.5.7.10-r4
│ └─ file ─┤ 22.30 Mb OpenNI-1.5.7.10.tar.gz
│ download portage://dev-libs/libusb-1.0.30
│ └─ file ─┤ 640.73 Kb libusb-1.0.30.tar.bz2
│ download portage://dev-libs/tinyxml-2.6.2-r5
│ └─ file ─┤ 205.20 Kb tinyxml_2_6_2.tar.gz
└─step 2─┤ install portage://dev-libs/tinyxml-2.6.2-r5
│ └─ conf ─┤ USE = "stl -debug -doc -static-libs"
│ 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
│ run portage://dev-libs/tinyxml-2.6.2-r5
└─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/OpenNI-1.5.7.10-r4
│ └─ conf ─┤ USE = "opengl* -doc -java"
└─step 7─┤ run portage://dev-libs/OpenNI-1.5.7.10-r4
Total: 11 actions (3 downloads, 4 installs, 4 runs), grouped into 7 steps.
23.12 Mb to be downloaded.