--- a/src/signs.cpp	Sun Apr 15 00:17:57 2007 +0000
+++ b/src/signs.cpp	Sun Apr 15 00:23:24 2007 +0000
@@ -6,6 +6,7 @@
 #include "openttd.h"
 #include "table/strings.h"
 #include "functions.h"
+#include "landscape.h"
 #include "player.h"
 #include "signs.h"
 #include "saveload.h"