[Bug bootstrap/110385] Build of MinGW g++ 13.1.0 fails due to absence of a header file.

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110385

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
>--build=i686-w64-mingw32 --host=i686-w64-mingw32

But your build env is cygwin ...

What is the output of "gcc -v"