Added missing <sys/types.h>.

diff --git a/multimedia/mcicda.c b/multimedia/mcicda.c
index acae7c6..ca6ef58 100644
--- a/multimedia/mcicda.c
+++ b/multimedia/mcicda.c
@@ -6,6 +6,7 @@
  * Copyright 1998-99 Eric Pouech
  */
 
+#include <sys/types.h>
 #include "winuser.h"
 #include "driver.h"
 #include "multimedia.h"