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

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

[ebuild  N     ] sci-biology/hmmer-3.1_beta2-r1::gentoo  USE="-gsl -mpi -test" CPU_FLAGS_X86="sse" 5826 KiB

Total: 1 package (1 new), Size of downloads: 5826 KiB