$NetBSD$

--- nucleo/image/sink/nserverImageSink.H.orig	2007-06-12 15:02:21.000000000 +0000
+++ nucleo/image/sink/nserverImageSink.H
@@ -24,6 +24,7 @@
 #include <stdexcept>
 
 #include <sys/socket.h>
+#include <unistd.h>
 
 namespace nucleo {
 
