[Bug target/103635] size_t and uintptr_t have wrong sizes with x86_64-w64-mingw32-g++ -mabi=sysv

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103635

--- Comment #12 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Arguably sysv ABI on Windows is a distinct target, and you need to provide your
own libc for it.