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

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

[ebuild  N     ] sys-libs/libraw1394-2.1.2-r1::gentoo  USE="-valgrind" 306 KiB
[ebuild  N     ] sys-libs/libavc1394-0.5.4-r2::gentoo  334 KiB

Total: 2 packages (2 new), Size of downloads: 640 KiB