https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116447
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
libsupc++.a (fundamental_type_info.o) (also included in libstdc++.a and
libstdc++.so.6)
should provide those symbols since r13-4722 if the target supports
_Float{16,32,64,128} or __bf16. Are you sure you're linking against GCC 13+
libstdc++.a?
On x86_64 I certainly see
nm fundamental_type_info.o | grep ZTIDF
0000000000000000 V _ZTIDF128_
0000000000000000 V _ZTIDF16_
0000000000000000 V _ZTIDF16b
0000000000000000 V _ZTIDF32_
0000000000000000 V _ZTIDF32x
0000000000000000 V _ZTIDF64_
0000000000000000 V _ZTIDF64x