[Bug middle-end/108300] `abort()` macro cause bootstrap failure on *-w64-mingw32

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108300

--- Comment #14 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Yes. Your mingw headers have changed, adding <msxml.h> which is incompatible
with the 'abort' macro in the GCC sources.