GCC ships with DG/UX.

-Matt

> > I think the current implementation of GCC stdarg.h is over engineered.
> > (I've never seen XD88K or DG-UX native compiler implementation.  Is it
> > a GreenHill?).  The stack convention for "some args on registers" is
> > not much different from what MIPS processor's so-called o32.  If
> > compiler can provide layout alignment value on the fly for arbitrary
> > data types;
> 
> The cc shipped with Motorola SVR(III/IV) on MVME88k (Delta88) was
> definitely GreenHills.