portage-ng --merge
>>> Emerging : portage://sci-biology/fasttree-2.1.11:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://sci-biology/fasttree-2.1.11
│ └─ file ─┤ 386.27 Kb FastTree-2.1.11.c
│ │ 93.04 Kb FastTreeUPGMA-2.1.11.c
│ │ 13.21 Kb MOTreeComparison-2.1.11.tar.gz
└─step 2─┤ install portage://sci-biology/fasttree-2.1.11
│ └─ conf ─┤ USE = "openmp -double-precision"
│ │ CPU_FLAGS_X86 = "sse3*"
└─step 3─┤ run portage://sci-biology/fasttree-2.1.11
Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
492.52 Kb to be downloaded.