https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64401
Georg-Johann Lay <gjl at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |WAITING Last reconfirmed| |2015-07-21 CC| |gjl at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from Georg-Johann Lay <gjl at gcc dot gnu.org> --- I cannot find objects built from crtstuff in any of my avr-builds, so the question is why it tries to generate this modules in the first place. ./libgcc/config.host reads: case ${host} in [...] *-*-elf) extra_parts="crtbegin.o crtend.o" ;; esac so presumably the build system is confused by your *-elf configuration. Is there a specific reason for why you are not configuring --target=avr ?