1. man make.conf 2. /varable Reproducible: Always
Thanks, this is fixed in git now: http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=9d9429b205a91400d61bd32b2ea63f1b6f9ea765
This is in 2.2_rc68, but I'll leave this bug open until it's in an unmasked version.
This is fixed in 2.1.9.