$NetBSD$

--- extra/pdb/creadpdb.cc.orig	2006-01-08 06:47:57.000000000 +0100
+++ extra/pdb/creadpdb.cc
@@ -21,6 +21,7 @@
 #include <sys/types.h>
 #include <unistd.h>
 #include <fcntl.h>
+#include <unistd.h>
 
 #define BUFLEN 80
 
