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

Calculating dependencies ... done!
Dependency resolution took 1.13 s (backtrack: 0/20).

[ebuild  N     ] net-libs/wvstreams-4.6.1_p14-r3::gentoo  USE="dbus pam -boost -debug -doc" 1113 KiB

Total: 1 package (1 new), Size of downloads: 1113 KiB