Fix last changes related to w32 and Cygwin.

 src/image.c: Restore mistakenly removed inclusion of w32.h.  Without
 it, GCC doesn't see prototypes of w32_delayed_load, and complains
 about implicit conversions from integer to pointer.

src/ChangeLog

+2012-09-01  Eli Zaretskii  <eliz@gnu.org>
+
+	* image.c: Restore mistakenly removed inclusion of w32.h.  Without
+	it, GCC doesn't see prototypes of w32_delayed_load, and complains
+	about implicit conversions from integer to pointer.
+
 2012-09-01  Daniel Colascione  <dancol@dancol.org>
 	* w32fns.c (x_display_info_for_name): Prevent crash if w32 window

src/image.c

@@ -76,6 +76,7 @@ typedef struct x_bitmap_record Bitmap_Record;
 #endif /* HAVE_X_WINDOWS */
 
 #ifdef HAVE_NTGUI
+#include "w32.h"
 /* W32_TODO : Color tables on W32.  */
 #undef COLOR_TABLE_SUPPORT