diff -ru inetutils-1.5/configure.ac inetutils-1.5+iPhone/configure.ac
--- inetutils-1.5/configure.ac	2007-06-28 22:58:23.000000000 +0000
+++ inetutils-1.5+iPhone/configure.ac	2008-03-24 13:47:26.000000000 +0000
@@ -470,7 +470,8 @@
               [AC_DEFINE(HAVE_OSOCKADDR_H, 1,
                          [Define to one if you have <osockaddr.h>.])],
 	      [#include <sys/types.h>
-               #include <sys/socket.h> ])
+               #include <sys/socket.h>
+               #include <protocols/talkd.h> ])
 
 AC_CHECK_TYPES(struct if_nameindex, , ,
   [#include <sys/types.h>