https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86590
--- Comment #22 from Pedro Alves <palves at redhat dot com> ---
clueless suggestion triggered by you saying "throwing": does marking
__constant_string_p noexcept, like:
...
__constant_string_p(const _CharT* __s) noexcept
...
make any difference?
