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

Calculating dependencies ... done!
Dependency resolution took 1.02 s (backtrack: 0/20).

[ebuild  N     ] dev-perl/Text-Unidecode-1.300.0-r1::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 135 KiB
[ebuild  N     ] dev-perl/libintl-perl-1.370.0::gentoo  USE="-examples -minimal -test" PERL_FEATURES="ithreads (-debug) -quadmath" 571 KiB
[ebuild  N     ] dev-perl/Unicode-EastAsianWidth-12.0.0::gentoo  USE="-test" PERL_FEATURES="ithreads (-debug) -quadmath" 52 KiB
[ebuild  N     ] app-text/texi2html-5.0-r1::gentoo  USE="unicode" 15037 KiB

Total: 4 packages (4 new), Size of downloads: 15793 KiB