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

Calculating dependencies ... done!
Dependency resolution took 1.01 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/libnfc-1.8.0-r1::gentoo  USE="readline -doc -pcsc-lite -usb" 541 KiB
[ebuild  N     ] net-wireless/mfoc-0.10.7-r1::gentoo  31 KiB

Total: 2 packages (2 new), Size of downloads: 572 KiB