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

Calculating dependencies ... done!
Dependency resolution took 1.02 s (backtrack: 0/20).

[ebuild  N     ] x11-wm/jwm-2.4.3::gentoo  USE="iconv jpeg nls png truetype -debug -pango -svg -xinerama -xpm" 310 KiB

Total: 1 package (1 new), Size of downloads: 310 KiB