diff -urN radvd-0.7.3.old/scanner.l radvd-0.7.3/scanner.l
--- radvd-1.2.orig/scanner.l	2008-10-14 13:34:09.000000000 +0200
+++ radvd-1.2/scanner.l	2009-05-30 17:06:39.028934539 +0200
@@ -21,6 +21,8 @@
 
 extern char *conf_file;
 
+int yywrap(void) { return 1; }
+
 int num_lines = 1;
 %}