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

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

[ebuild  N     ] virtual/jpeg-100-r1::gentoo  USE="-static-libs" 0 KiB
[ebuild  N     ] x11-libs/xforms-1.2.4-r1::gentoo  USE="opengl -doc" 1405 KiB
[ebuild  N     ] sci-chemistry/elem-1.0.3-r3::gentoo  57 KiB

Total: 3 packages (3 new), Size of downloads: 1462 KiB