Comment # 1 on bug 1116889 from Ralf Habacker

This issue is still present: 
> zypper packages | grep mingw32-cross-gcc-c++
i | windows:mingw:win32 | mingw32-cross-gcc-c++ | 9.2.0-6.3 | x86_64

> find /usr/lib64/gcc/i686-w64-mingw32/9.2.0/  -size +100M -ls
2252029 168964 -rwxr-xr-x   1 root     root     173014024 Apr 20 14:56
/usr/lib64/gcc/i686-w64-mingw32/9.2.0/lto1
2253607 176944 -rwxr-xr-x   1 root     root     181185600 Apr 20 14:55
/usr/lib64/gcc/i686-w64-mingw32/9.2.0/cc1
2232079 186940 -rwxr-xr-x   1 root     root     191422064 Apr 20 14:56
/usr/lib64/gcc/i686-w64-mingw32/9.2.0/cc1plus