https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94437
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Component|c++ |target Target| |Avr --- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- GCC 7.x is no longer supported, can you try gcc 8.5.0 or 9.3.0 (or later)?