--- bridge-utils-1.0.4/libbridge/libbridge_private.h~	2004-05-28 21:38:38.000000000 +0100
+++ bridge-utils-1.0.4/libbridge/libbridge_private.h	2004-07-01 11:24:21.000000000 +0100
@@ -22,6 +22,7 @@
 #include "config.h"
 
 #include <linux/sockios.h>
+#include <unistd.h>
 #include <sys/time.h>
 #include <sys/ioctl.h>
 #include <linux/if_bridge.h>