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/sonic-0.2.0_p20260314:0/0.3.0::gentoo  USE="-fftw -test" 5238 KiB

Total: 1 package (1 new), Size of downloads: 5238 KiB