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

Calculating dependencies ... done!
Dependency resolution took 1.69 s (backtrack: 0/20).

[ebuild  N     ] sys-libs/mtdev-1.1.7::gentoo  295 KiB
[ebuild  NS    ] app-text/docbook-xml-dtd-4.3-r2:4.3::gentoo [4.1.2-r7:4.1.2::gentoo, 4.2-r3:4.2::gentoo, 4.4-r3:4.4::gentoo, 4.5-r2:4.5::gentoo] 82 KiB
[ebuild  N     ] dev-libs/libevdev-1.13.7::gentoo  USE="-doc -test" 462 KiB
[ebuild  N     ] x11-libs/gdk-pixbuf-2.44.8:2::gentoo  USE="gif jpeg tiff -gtk-doc -introspection -test" 5897 KiB
[ebuild  N     ] dev-libs/libinput-1.32.0:0/10::gentoo  USE="-doc -lua -test" INPUT_DEVICES="-wacom" LUA_SINGLE_TARGET="lua5-4" 944 KiB
[ebuild  N     ] app-laptop/tiny-dfr-0.3.3::gentoo  USE="-debug" 42124 KiB

Total: 6 packages (5 new, 1 in new slot), Size of downloads: 49802 KiB