https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112997
--- Comment #7 from cqwrteur <unlvsur at live dot com> --- (In reply to Andrew Pinski from comment #5) > (In reply to cqwrteur from comment #4) > > (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 > > Then libstdc++ has not been ported . Or you implement add a WebAssembly > backend to GCC. i do not know whether binutils has implemented wasm. Or i would like to implement a wasm backend to GCC tbh.