9852 enable ld(1) guidance and deflib assertions for the illumos build

@@ -22,12 +22,10 @@
 /*
  * Copyright (c) 2001 by Sun Microsystems, Inc.
  * All rights reserved.
  */
 
-#pragma ident   "%Z%%M% %I%     %E% SMI"
-
 /* LINTLIBRARY */
 /* PROTOLIB1 */
 
 /*
  * Set up the UNIX98 compilation environment.

@@ -40,5 +38,6 @@
  */
 #include <sys/socket.h>
 #include <arpa/inet.h>
 #include <netinet/in.h>
 #include <netdb.h>
+#include <net/if.h>