Added wxUSE_SPINCTRL,

Added various HAVE_XIM patches.
  Added forty's headers to list of installed files.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4853 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/defs.h

@@ -1790,6 +1790,10 @@ typedef struct _GdkWindow       GdkPixmap;
 typedef struct _GdkCursor       GdkCursor;
 typedef struct _GdkRegion       GdkRegion;
 typedef struct _GdkDragContext  GdkDragContext;
+#ifdef HAVE_XIM
+typedef struct _GdkIC           GdkIC;
+typedef struct _GdkICAttr       GdkICAttr;
+#endif
 
 /* Stand-ins for GTK types */
 typedef struct _GtkWidget         GtkWidget;