Fix expansion to no-op

include/vlc_messages.h

@@ -364,10 +364,10 @@ VLC_EXPORT( void, __stats_ComputeGlobalStats, (vlc_object_t*,global_stats_t*));
 #define stats_TimerDump(a,b) __stats_TimerDump( VLC_OBJECT(a), b )
 #define stats_TimersDumpAll(a) __stats_TimersDumpAll( VLC_OBJECT(a) )
 #else
-#define stats_TimerStart(a,b,c) {}
-#define stats_TimerStop(a,b) {}
-#define stats_TimerDump(a,b) {}
-#define stats_TimersDumpAll(a) {}
+#define stats_TimerStart(a,b,c) (void)0
+#define stats_TimerStop(a,b) (void)0
+#define stats_TimerDump(a,b) (void)0
+#define stats_TimersDumpAll(a) (void)0
 #endif
 VLC_EXPORT( void,__stats_TimerStart, (vlc_object_t*, const char *, unsigned int ) );
 VLC_EXPORT( void,__stats_TimerStop, (vlc_object_t*, unsigned int) );