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

Calculating dependencies ... done!
Dependency resolution took 0.97 s (backtrack: 0/20).

[ebuild  N     ] dev-build/netsurf-buildsystem-1.10::gentoo  39 KiB
[ebuild  N     ] media-libs/libnsbmp-0.1.7:0/0.1.7::gentoo  456 KiB

Total: 2 packages (2 new), Size of downloads: 494 KiB