ghc --make and memory

[Simon Marlow]

> I am finding that very large compilations fall over with ghc=20
> --make because ghc --make
> runs out of heap space.  However if I restart them they=20
> manage to continue.  Is there a
> way of making ghc --make use memory more efficiently?

Bashing on GHC's memory use is something we want to do, but it'll be
after the 5.02 release.  Retainer and lag-drag-void profiling is going
in post-5.02 too, which should help us track down any space leaks.

Meanwhile, memory is cheap at the moment!

Cheers,
	Simon