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

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

[ebuild  N     ] net-libs/wandio-4.2.3_p1-r2:0/6::gentoo  USE="bzip2 http zlib -lz4 -lzma -lzo -test -zstd" 15058 KiB

Total: 1 package (1 new), Size of downloads: 15058 KiB