>
[ebuild R ] media-gfx/exiv2-0.26_p20171104-r1 USE="nls png xmp -doc -exampl
es -webready" ABI_X86="32 (64) (-x32)"
Anyway i think you're not with 1.2ß kits.
If You're with 1.1, i think that you can upgrade your system to 1.2ß ....
To make it possible, You can use the howto ^^
I reccomend >=gentoo-sources [experimental] 4.16.8 to have a patched kernel vs "Meltdown" & "Spectre" without graphical troubles if you'll use GNome3 desktop.