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

Calculating dependencies ... done!
Dependency resolution took 1.01 s (backtrack: 0/20).

[ebuild  N     ] app-crypt/mhash-0.9.9.9-r4::gentoo  USE="-static-libs" 910 KiB
[ebuild  N     ] app-crypt/shash-0.2.6-r4::gentoo  USE="-static" 104 KiB

Total: 2 packages (2 new), Size of downloads: 1013 KiB