--- a/src/variables.h	Wed Sep 26 17:33:32 2007 +0000
+++ b/src/variables.h	Wed Sep 26 19:27:29 2007 +0000
@@ -339,6 +339,8 @@
 
 extern const TileTypeProcs * const _tile_type_procs[16];
 
+extern bool _draw_bounding_boxes;
+
 /* misc */
 VARDEF char _screenshot_name[128];
 VARDEF byte _vehicle_design_names;