--- a/Makefile	Sun Mar 26 21:13:16 2006 +0000
+++ b/Makefile	Sun Mar 26 21:15:09 2006 +0000
@@ -670,6 +670,7 @@
 SRCS += openttd.c
 SRCS += order_cmd.c
 SRCS += order_gui.c
+SRCS += os_timer.c
 SRCS += pathfind.c
 SRCS += player_gui.c
 SRCS += players.c