diff -ruN udev-016.orig/logging.h udev-016/logging.h
--- udev-016.orig/logging.h	2004-02-02 10:34:49.000000000 +0100
+++ udev-016/logging.h	2004-02-03 22:27:43.000000000 +0100
@@ -32,6 +32,7 @@
 #ifdef LOG
 #include <stdarg.h>
 #include <syslog.h>
+#include <unistd.h>
 
 #undef info
 #define info(format, arg...)								\