--- a/gfx.c	Tue Nov 15 11:46:49 2005 +0000
+++ b/gfx.c	Wed Nov 16 08:35:26 2005 +0000
@@ -13,6 +13,10 @@
 #include "hal.h"
 #include "variables.h"
 
+#ifdef _DEBUG
+bool _dbg_screen_rect;
+#endif
+
 Colour _cur_palette[256];
 
 static void GfxMainBlitter(const Sprite *sprite, int x, int y, int mode);

--- a/gfx.h	Tue Nov 15 11:46:49 2005 +0000
+++ b/gfx.h	Wed Nov 16 08:35:26 2005 +0000
@@ -124,4 +124,8 @@
 	IS_PALETTE_COLOR = 0x100, // color value is already a real palette color index, not an index of a StringColor
 } StringColorFlags;
 
+#ifdef _DEBUG
+extern bool _dbg_screen_rect;
+#endif
+
 #endif /* GFX_H */

--- a/hal.h	Tue Nov 15 11:46:49 2005 +0000
+++ b/hal.h	Wed Nov 16 08:35:26 2005 +0000
@@ -43,7 +43,6 @@
 };
 
 extern void GameLoop(void);
-extern bool _dbg_screen_rect;
 
 
 // Deals with finding savegames

--- a/openttd.c	Tue Nov 15 11:46:49 2005 +0000
+++ b/openttd.c	Wed Nov 16 08:35:26 2005 +0000
@@ -61,8 +61,6 @@
 extern void DoStartupNewPlayer(bool is_ai);
 extern void ShowOSErrorBox(const char *buf);
 
-bool _dbg_screen_rect;
-
 /* TODO: usrerror() for errors which are not of an internal nature but
  * caused by the user, i.e. missing files or fatal configuration errors.
  * Post-0.4.0 since Celestar doesn't want this in SVN before. --pasky */