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

Calculating dependencies ... done!
Dependency resolution took 1.07 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/libtecla-1.6.3-r1::gentoo  520 KiB
[ebuild  N     ] virtual/fortran-0-r1::gentoo  USE="openmp" 0 KiB
[ebuild  N     ] sci-libs/buddy-2.4-r1::gentoo  USE="-doc -examples" 749 KiB
[ebuild  N     ] dev-lang/maude-3.4::gentoo  USE="-doc -examples" 2599 KiB

Total: 4 packages (4 new), Size of downloads: 3867 KiB