--- embedaddon/mtr/asn.h	2013/07/21 23:43:42	1.1.1.1
+++ embedaddon/mtr/asn.h	2016/11/01 09:33:48	1.1.1.2
@@ -16,6 +16,18 @@
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
+// The autoconf system provides us with the NO_IPINFO define. 
+// Littering the code with #ifndef NO_IPINFO (double negative)
+// does not benefit readabilty. So here we invert the sense of the
+// define. 
+//
+// Similarly, this include file should be included unconditially. 
+// It will evaluate to nothing if we don't need it. 
+
+#ifndef NO_IPINFO
+#define IPINFO
+
+
 extern int ipinfo_no;
 extern int ipinfo_max;
 extern int iiwidth_len;
@@ -26,3 +38,4 @@ char *fmt_ipinfo(ip_t *addr);
 int get_iiwidth(void);
 int is_printii(void);
 
+#endif