re: toolchain/58411: GCC/x86_64 10.5 and 12.4 miscompile GCC/sh3 12.4

[matthew green <mrg%eterna23.net@localhost>]

>  That reminded me about a bug I once stubled into:
>  
>    https://github.com/virtio-win/kvm-guest-drivers-windows/issues/87
>  
>  Given that gcc is now written, afaik, in a mix of C and C++, it makes
>  me wonder...

all of GCC proper compiles with a c++ compiler, except for the
things like libiberty and libgmp etc.  between gcc 10 and 12
they finally renamed all the .c files to .cc, meaning a minor
hack for us could be removed :)


.mrg.