portage-ng / portage / virtual / fortran / 0-r1
emerge -vp

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

Calculating dependencies ... done!
Dependency resolution took 1.00 s (backtrack: 0/20).

[ebuild  N     ] virtual/fortran-0-r1::gentoo  USE="openmp" 0 KiB

Total: 1 package (1 new), Size of downloads: 0 KiB

Wall time
1.965 s vs. 0.015 s for portage-ng