GDC on Windows

[Jason House]

I needed to generate a windows version of my project and discovered today
that I crash dmd when compiling my source.  Given the time crunch, I
figured it'd be easy to use GDC instead.  Boy was I wrong!

The gdc package for cygwin is way out of date, and the build steps are not
all too clear.  I don't have a windows box, but mgen on #d.tango was
extremely kind and tried very hard to get a functional gdc under windows. 
I believe the install steps were missing packages and there's some kind of
problem working with autogen with no easy workaround.

How can this process be fixed?  Is it a matter of better instructions? 
Should users just assume they can't use gdc on windows?  More frequent
releases from the gdc team?