https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98616
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- -mloongson-mmi was added to gcc in r9-3891. While it was added to binutils in 2.32. Basically if you are going to bootstrap GCC 9 or 10 with -march=loongson2f you need a newer binutils than you currently have selected.