portage-ng --merge
>>> Emerging : portage://sci-libs/kissfft-131.2.0:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://sci-libs/kissfft-131.2.0
│ └─ file ─┤ 51.25 Kb kissfft-131.2.0.tar.gz
└─step 2─┤ install portage://sci-libs/kissfft-131.2.0
│ └─ conf ─┤ USE = "openmp -alloca -double -int16 -int32 -test -tools"
│ │ CPU_FLAGS_X86 = "sse*"
└─step 3─┤ run portage://sci-libs/kissfft-131.2.0
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
51.25 Kb to be downloaded.