[Bug bootstrap/98412] libcody does not compile with older GCC versions

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98412

--- Comment #6 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> Can you try this?  I guess we're finding the limitations of 'requires C++11'

Yes, this fixes all the compilation failures, thanks!