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

Calculating dependencies ... done!
Dependency resolution took 0.98 s (backtrack: 0/20).

[ebuild  N     ] sci-libs/arprec-2.2.20::gentoo  USE="-fortran -qd" CPU_FLAGS_X86="fma3 -fma4" 802 KiB

Total: 1 package (1 new), Size of downloads: 802 KiB