[Bug libstdc++/103305] Cannot build libstdc++ with newlib on aarch64-none-elf or bfin-elf with new version of newlib

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103305

--- Comment #23 from Jonathan Wakely <redi at gcc dot gnu.org> ---
We should revert it. Could you do that (after checking the reverted libstdc++
code works with the latest newlib code) please?