Index: configure.ac
==================================================================
--- configure.ac
+++ configure.ac
@@ -1405,11 +1405,11 @@
 		AC_DEFINE(OF_HAVE_NETINET_TCP_H, 1,
 			[Whether we have netinet/tcp.h])
 	])
 	AC_CHECK_HEADERS([arpa/inet.h netdb.h])
 	AC_CHECK_HEADERS([net/if.h net/if_arp.h net/if_dl.h net/if_types.h])
-	AC_CHECK_FUNCS([if_indextoname if_nametoindex])
+	AC_CHECK_FUNCS([if_indextoname if_nametoindex if_nameindex])
 	AC_CHECK_TYPES([struct sockaddr_dl], [], [], [
 		#ifdef HAVAE_SYS_TYPES_H
 		# include <sys/types.h>
 		#endif
 		#ifdef HAVE_NET_IF_DL_H
@@ -1754,13 +1754,10 @@
 				"OFSelectKernelEventObserver.m")
 		])
 		;;
 	esac
 
-	AC_CHECK_HEADERS(net/if.h)
-	AC_CHECK_FUNCS(if_nameindex)
-
 	AC_ARG_WITH(tls,
 		AS_HELP_STRING([--with-tls], [
 			enable TLS support using the specified library
 			(yes, openssl, gnutls, securetransport or no)]))
 	AS_IF([test x"$with_tls" = x""], [with_tls="yes"])