portage-ng --merge
>>> Emerging : portage://sci-libs/lis-2.1.3:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://sci-libs/lis-2.1.3
│ └─ file ─┤ 3.82 Mb lis-2.1.3.zip
└─step 2─┤ install portage://virtual/fortran-0-r1
│ └─ conf ─┤ USE = "openmp"
└─step 3─┤ run portage://virtual/fortran-0-r1
└─step 4─┤ install portage://sci-libs/lis-2.1.3
│ └─ conf ─┤ USE = "openmp -doc -fortran -mpi -quad -saamg -static-libs"
│ │ CPU_FLAGS_X86 = "fma3 sse2* -fma4"
└─step 5─┤ run portage://sci-libs/lis-2.1.3
Total: 5 actions (1 download, 2 installs, 2 runs), grouped into 5 steps.
3.82 Mb to be downloaded.