Index: configure.ac
==================================================================
--- configure.ac
+++ configure.ac
@@ -1536,12 +1536,12 @@
 		AC_DEFINE(OF_HAVE_NETIPX_IPX_H, 1,
 			[Whether we have netipx/ipx.h])
 	])
 	AC_CHECK_MEMBER(struct sockaddr_ipx.sipx_network, [], [
 		AC_CHECK_MEMBER(struct sockaddr_ipx.sa_netnum, [], [
-			AC_CHECK_MEMBER(struct sockaddr_ipx.sipx_addr.x_port, [
-			], [], [
+			AC_CHECK_MEMBER(struct sockaddr_ipx.sipx_addr.x_port,
+			[], [], [
 				#ifdef HAVE_SYS_TYPES_H
 				# include <sys/types.h>
 				#endif
 
 				#ifdef OF_HAVE_NETIPX_IPX_H