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

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

[ebuild  N     ] dev-libs/sltdl-0.5.1::gentoo  USE="-verify-sig" 35 KiB

Total: 1 package (1 new), Size of downloads: 35 KiB