portage-ng --merge
>>> Emerging : portage://sci-astronomy/cpl-7.3.2:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://dev-lang/cfortran-20210827-r1
│ └─ file ─┤ 7.91 Kb cfortran_20210827-1.debian.tar.xz
│ │ 92.28 Kb cfortran_20210827.orig.tar.gz
│ download portage://sci-astronomy/cpl-7.3.2
│ └─ file ─┤ 3.28 Mb cpl-7.3.2.tar.gz
│ download portage://sci-astronomy/wcslib-8.3-r1
│ └─ file ─┤ 3.09 Mb wcslib-8.3.tar.bz2
│ download portage://sci-libs/cfitsio-4.7.0
│ └─ file ─┤ 2.06 Mb cfitsio-4.7.0.tar.gz
│ download portage://sci-libs/fftw-3.3.10-r1
│ └─ file ─┤ 3.95 Mb fftw-3.3.10.tar.gz
└─step 2─┤ install portage://sci-astronomy/wcslib-8.3-r1
│ └─ conf ─┤ USE = "tools -doc -fits -fortran -pgplot -static-libs"
│ │ SLOT = "0/8"
│ install portage://sci-libs/fftw-3.3.10-r1
│ └─ conf ─┤ USE = "openmp threads* (-zbus) -doc -fortran -mpi -test"
│ │ CPU_FLAGS_X86 = "avx avx2 fma3 sse* sse2* -fma4"
│ │ SLOT = "3.0/3"
│ install portage://virtual/fortran-0-r1
│ └─ conf ─┤ USE = "openmp"
│ install portage://dev-lang/cfortran-20210827-r1
│ └─ conf ─┤ USE = "-examples -test"
└─step 3─┤ run portage://sci-astronomy/wcslib-8.3-r1
│ run portage://sci-libs/fftw-3.3.10-r1
│ run portage://virtual/fortran-0-r1
└─step 4─┤ install portage://sci-libs/cfitsio-4.7.0
│ └─ conf ─┤ USE = "bzip2 -curl -test -tools"
│ │ SLOT = "0/10-r1"
└─step 5─┤ run portage://sci-libs/cfitsio-4.7.0
└─step 6─┤ install portage://sci-astronomy/cpl-7.3.2
│ └─ conf ─┤ USE = "threads* -doc -gasgano -static-libs"
│ │ SLOT = "0/26"
└─step 7─┤ run portage://sci-astronomy/cpl-7.3.2
Total: 16 actions (5 downloads, 6 installs, 5 runs), grouped into 7 steps.
12.49 Mb to be downloaded.