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

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

[ebuild  N     ] dev-build/bmake-20260508::gentoo  USE="-test" LUA_SINGLE_TARGET="lua5-1 -lua5-3 -lua5-4 -luajit" 985 KiB

Total: 1 package (1 new), Size of downloads: 985 KiB