portage-ng --merge
>>> Emerging : portage://media-libs/devil-1.7.8-r6:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://media-libs/devil-1.7.8-r6
│ └─ file ─┤ 1.96 Mb DevIL-1.7.8.tar.gz
│ download portage://media-libs/giflib-6.1.3
│ └─ file ─┤ 459.55 Kb giflib-6.1.3.tar.gz
└─step 2─┤ install portage://media-libs/giflib-6.1.3
│ └─ conf ─┤ USE = "-doc -static-libs"
│ │ SLOT = "0/7"
└─step 3─┤ run portage://media-libs/giflib-6.1.3
└─step 4─┤ install portage://media-libs/devil-1.7.8-r6
│ └─ conf ─┤ USE = "X* gif* jpeg* opengl* png* tiff* -allegro -glut -mng -sdl -static-libs -xpm"
│ │ CPU_FLAGS_X86 = "sse* sse2* sse3*"
└─step 5─┤ run portage://media-libs/devil-1.7.8-r6
Total: 6 actions (2 downloads, 2 installs, 2 runs), grouped into 5 steps.
2.41 Mb to be downloaded.