Require {DECLARE,DEFAULT}_DEBUG_CHANNEL statements to end in a ;

diff --git a/windows/timer.c b/windows/timer.c
index 126ef16..e9f2b79 100644
--- a/windows/timer.c
+++ b/windows/timer.c
@@ -15,7 +15,7 @@
 #include "message.h"
 #include "debugtools.h"
 
-DEFAULT_DEBUG_CHANNEL(timer)
+DEFAULT_DEBUG_CHANNEL(timer);
 
 
 typedef struct tagTIMER