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

Calculating dependencies ... done!
Dependency resolution took 0.99 s (backtrack: 0/20).

[ebuild  N     ] dev-perl/Tie-Cache-0.210.0-r2::gentoo  USE="-examples -test" PERL_FEATURES="ithreads (-debug) -quadmath" 11 KiB
[ebuild  N     ] dev-perl/MLDBM-2.50.0-r1::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 13 KiB
[ebuild  N     ] dev-perl/MLDBM-Sync-0.300.0-r2::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 22 KiB

Total: 3 packages (3 new), Size of downloads: 46 KiB