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

Calculating dependencies ... done!
Dependency resolution took 1.00 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/libical-3.0.20-r2:0/3::gentoo  USE="glib -doc -examples -introspection -static-libs -test -vala" 952 KiB

Total: 1 package (1 new), Size of downloads: 952 KiB