>>> Emerging : portage://sci-libs/fftw-3.3.10-r1:run?{[]}

These are the packages that would be merged, in order:

Calculating dependencies... done!

 └─step  1─┤ download  portage://sci-libs/fftw-3.3.10-r1
             │           └─ file ─┤ 3.95 Mb  	 fftw-3.3.10.tar.gz

 └─step  2─┤ 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"

 └─step  3─┤ run     portage://sci-libs/fftw-3.3.10-r1

Total: 3 actions (1 download, 1 install, 1 run), grouped into 3 steps.
       3.95 Mb to be downloaded.