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/Number-Compare-0.30.0-r2::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 3 KiB
[ebuild  N     ] dev-perl/Text-Glob-0.110.0-r1::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 5 KiB
[ebuild  N     ] dev-perl/File-Find-Rule-0.350.0::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 16 KiB
[ebuild  N     ] dev-perl/Devel-CheckOS-2.40.0::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 41 KiB

Total: 4 packages (4 new), Size of downloads: 64 KiB