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

Calculating dependencies ... done!
Dependency resolution took 1.10 s (backtrack: 0/20).

[ebuild  N     ] sci-biology/clustalw-2.1-r2:2::gentoo  343 KiB
[ebuild  N     ] sci-biology/phyml-2.4.5-r4::gentoo  90 KiB
[ebuild  N     ] sci-libs/libmuscle-3.7-r4::gentoo  USE="-doc -static-libs" 449 KiB
[ebuild  N     ] x11-libs/libXcursor-1.2.3::gentoo  USE="-doc" 286 KiB
[ebuild  N     ] x11-libs/libXinerama-1.1.6::gentoo  USE="-doc" 263 KiB
[ebuild  N     ] x11-libs/fltk-1.4.5:1/1.4::gentoo  USE="X cairo dbus opengl (static-libs) -doc -examples -test -wayland" 8267 KiB
[ebuild  N     ] sci-biology/seaview-4.6-r2::gentoo  USE="xft" 415 KiB

Total: 7 packages (7 new), Size of downloads: 10110 KiB