[Bug libstdc++/112997] _Unwind_Exception conflicts with void*. failed to build with clang

[unlvsur at live dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112997

--- Comment #4 from cqwrteur <unlvsur at live dot com> ---
(In reply to Andrew Pinski from comment #1)
> Why are you building libstdc++ sources with clang? I doubt that is supported.

GCC does not support WebAssembly backend