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

Calculating dependencies ... done!
Dependency resolution took 0.96 s (backtrack: 0/20).

[ebuild  N     ] mail-filter/bmf-0.9.4-r4::gentoo  USE="-berkdb -mysql" 36 KiB

Total: 1 package (1 new), Size of downloads: 36 KiB