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

Calculating dependencies ... done!
Dependency resolution took 1.01 s (backtrack: 0/20).

[ebuild  N     ] media-libs/tiff-compat-4.4.0-r4:4::gentoo  USE="cxx jpeg zlib -jbig -lerc -lzma -test -verify-sig -webp -zstd" 1885 KiB

Total: 1 package (1 new), Size of downloads: 1885 KiB