HGL ang GHC on Win32

[Simon Marlow]

> I'm hoping that a GHC honcho will say=20
>=20
>   "Well of course that happens with 5.02.2 - you should=20
> upgrade to 5.03 right away."
>=20
> or some such.

I'm afraid not :-)  But there *is* a bug in the native code generator in
5.02.2, namly in the FFI support for passing floating point arguments to
ccalls, which I fixed yesterday and could potentially cause this kind of
problem.  Make sure the graphics library has been compiled with -fvia-C
or -O to work around it (and if this helps, please let us know).

Cheers,
	Simon