It's be good to have epatch_user at the end of src_prepare(). User patches are possible for gcc and binutils already. Adding and testing patches would make things much easier. Reproducible: Always
Which ebuild?
Ah, sorry. =avr-libc-1.8.0
should be all set now in the tree; thanks for the report! Commit message: Call epatch_user http://sources.gentoo.org/dev-embedded/avr-libc/avr-libc-1.8.0.ebuild?r1=1.4&r2=1.5