It's deprecated in favor of people using mono-env.eclass to get common vars needed by dotnet stuff and stop doing ugly changes in libdir behavior. Would be nice if repoman could warn to prevent its usage in newer ebuilds Thanks Reproducible: Always
This is fixed in git: http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=aa026d95ddcad54da1baa22155ff583d7d1f5171
This is fixed in 2.1.12.3 and 2.2.0_alpha178.