[ODE] svn trunk commits

[David Walters]

> I can add a switch, but is there already consensus on how we
> want this?
>
> --without-trimesh
> --with-trimesh=opcde
> --with-trimesh=gimpact
>
> or:
>
> --enable-opcode
> --enable-trimesh
>

I'd say the first makes seems more logical as opcode and gimpact are
in some ways competing collision libraries, and should probaby have
their mutual exclusivity enforced here.

Just my take on it.

Regards,
David