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

Calculating dependencies ... done!
Dependency resolution took 0.97 s (backtrack: 0/20).

[ebuild  N     ] dev-ada/gprconfig_kb-25.0.0-r3::gentoo  ADA_TARGET="gcc_15 -gcc_12 -gcc_13 -gcc_14 (-gcc_16)" 44 KiB

Total: 1 package (1 new), Size of downloads: 44 KiB