[Bug bootstrap/90544] Build failure on MINGW for gcc-9.1.0

[master at a1983 dot com.cn]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90544

Kuang <master at a1983 dot com.cn> changed:

           What    |Removed                     |Added
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                 CC|                            |master at a1983 dot com.cn

--- Comment #2 from Kuang <master at a1983 dot com.cn> ---
Same problem when cross compiling for windows on Ubuntu with
x86_64-w64-mingw32-gcc (9.1.0)