https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116447
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> --- I certainly get the _ZTIDF16_ symbol when (admittedly cross-)compiling fundamental_type_info.C with -mthumb -mcpu=cortex-m55 -mfloat-abi=hard -mfpu=auto Anyway, if this doesn't work with the --with-multilib-list= you're using, then maybe there is some bug in how those multilibs are specified or matched. I know nothing about that and would prefer not to learn anything about those, so will defer that to the ARM maintainers.
