https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108011
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> --- The header file you have does: #ifdef __x86_64__ ... #else #error unimplemented for this target #endif Maybe multilib was never working before. This cannot be a GCC bug. Use --disable-multilib if the header files you have installed don't support 32bit.