[Bug libstdc++/100146] __cpp_lib_to_chars not defined

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100146

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 50626
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50626&action=edit
gcc11-pr100146.patch

So do we want something like this patch then?