--- VirtualBox-1.6.0_OSE/src/VBox/Additions/x11/Makefile.kmk.orig	2008-04-30 16:06:03.000000000 +0200
+++ VirtualBox-1.6.0_OSE/src/VBox/Additions/x11/Makefile.kmk	2008-05-05 21:33:16.000000000 +0200
@@ -24,7 +24,6 @@
 
 # Include sub-makefiles.
 if1of ($(BUILD_TARGET), freebsd l4 linux solaris)
- include $(PATH_SUB_CURRENT)/xclient/Makefile.kmk
  include $(PATH_SUB_CURRENT)/xgraphics/Makefile.kmk
  include $(PATH_SUB_CURRENT)/xmouse/Makefile.kmk
 endif