--- radvd-2.5.orig/configure.ac	2014-08-04 02:23:05.000000000 +0200
+++ radvd-2.5/configure.ac	2014-08-12 08:44:04.000000000 +0200
@@ -157,7 +157,6 @@ AC_CHECK_HEADERS( \
 	net/if_types.h \
 	sys/param.h \
 	sys/sockio.h \
-	sys/sysctl.h \
 	sys/time.h \
 	time.h \
 )