Mingw64 build failure

[Alexander Fedotov]

I had the same issue with GDB12 build using mingw32 on f32 and f35.

But after some trials this configuration works for me:
"'--host=i686-w64-mingw32' '--target=i686-w64-mingw32'
'--disable-binutils' '--disable-gas' '--disable-gold'
'--disable-gprof' '--disable-ld' '--disable-guile'
'--disable-source-highlight' '--without-debuginfod' 'LDFLAGS=-lssp'
'--disable-sim' '--disable-gprofng' 'host_alias=i686-w64-mingw32'
'target_alias=i686-w64-mingw32'"

Alex