[MiNT] gcc 4.2.2 native

[Alan Hourihane <alanh@fairlite.demon.co.uk>]

I've managed to compile gcc 4.2.2 for the native host on my Linux PC.

Now, those binaries work fine on my Falcon too.

So, the next step was to build binutils 2.18. I can see that this
doesn't have all the patches from the previous binutils.

So they'll need adding. I've stopped at this point, as I suspect Vincent
will get this done pretty soon anyway.

Alan.