Problems Compiling GTk2HS on Win32

Hi,

I'm trying to compile Gtk2Hs using Cygwin on windows 32.... It all starts to
work fine, then the "make install" crashes with:

c:/ghc/ghc-5.04.2/bin/hsc2hs -C -optc-fnative-struct
+RTS -H180m -M350m -RTS --l
flag=-lgtk-win32-2.0 --lflag=-lgdk-win32-2.0 --lflag=-latk-1.0 --lflag=-lpan
gowi
n32-1.0 --lflag=-lgdi32 --lflag=-lpango-1.0 --lflag=-lgdk_pixbuf-2.0 --lflag
=-lg
object-2.0 --lflag=-lgmodule-2.0 --lflag=-lglib-2.0 --lflag=-lintl --lflag=-
lico
nv --cc=c:/ghc/ghc-5.04.2/bin/ghc general/StockItems.hsc
general\StockItems.hsc:132: gtk/gtk.h: No such file or directory
general\StockItems.hsc:249: parse error
general\StockItems.hsc:327: parse error
general\StockItems.hsc:401: parse error
general\StockItems.hsc:249: parse error
general\StockItems.hsc:327: parse error
general\StockItems.hsc:401: parse error
general\StockItems.hsc:249: parse error
general\StockItems.hsc:327: parse error
general\StockItems.hsc:401: parse error
make: *** [general/StockItems.hs] Error 1

now obviously this is because c2hs cannot find the gtk.h file, which i have
installed in:
C:\cygwin\usr\include\gtk, C:\cygwin\usr\local\include and
C:\GTK\Dev-C++\include\gtk-2.0\gtk

the C:\cygwin ones were a port of gtk2 for cygwin, wheres the one in C:\gtk
is just  a win32 port of gtk2

Any suggestions would be greatly appreciated, i'm a bit of a newbie when it
comes to both bash-shells and haskell, and am totally stuck.
Thanks
Chris,