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/zita-resampler-1.11.2:0/1::gentoo  USE="-tools" CPU_FLAGS_X86="sse2" 121 KiB

Total: 1 package (1 new), Size of downloads: 121 KiB