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

Calculating dependencies ... done!
Dependency resolution took 1.02 s (backtrack: 0/20).

[ebuild  N     ] dev-db/m17n-db-1.8.15::gentoo  2475 KiB
[ebuild  N     ] dev-libs/m17n-lib-1.8.7::gentoo  USE="X fontconfig -anthy -athena -bidi -gd -libotf -libxml2 -spell -xft" 1094 KiB

Total: 2 packages (2 new), Size of downloads: 3568 KiB