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

Calculating dependencies ... done!
Dependency resolution took 0.96 s (backtrack: 0/20).

[ebuild  N     ] media-libs/iir1-1.9.5::gentoo  USE="-test" 2067 KiB

Total: 1 package (1 new), Size of downloads: 2067 KiB