Stack profiling

[Simon Marlow]

> > In the CVS version there's a -xt RTS flag that enables inclusion of
> > thread stacks in a heap profile.  It's crude, because thread stacks=20
> > grow
> > by doubling their size every time they run out of space,=20
> but it should
> > be enough to show the difference between O(n) stack usage and O(1).
>=20
> Hmm. That sounds like what I need, I think. Is it in HEAD or in the=20
> 5.04 (now 5.04.3?) branch?

It's only in the HEAD.

Cheers,
	Simon