Index: libpgm-5.1.118-1~dfsg/openpgm/pgm/configure.ac
===================================================================
--- libpgm-5.1.118-1~dfsg.orig/openpgm/pgm/configure.ac	2011-09-27 17:59:08.000000000 +0000
+++ libpgm-5.1.118-1~dfsg/openpgm/pgm/configure.ac	2012-06-06 20:21:04.407905323 +0000
@@ -184,8 +184,8 @@
 AC_COMPILE_IFELSE(
 	[AC_LANG_PROGRAM([[#include <sys/types.h>
 #include <ifaddrs.h>]],
-		[[struct ifaddrs ifa;
-ifa.ifa_netmask = (struct sockaddr*)0;]])],
+		[[struct ifreq ifr;
+ifr.ifr_netmask = (struct sockaddr*)0;]])],
 	[AC_MSG_RESULT([yes])
 		CFLAGS="$CFLAGS -DCONFIG_HAVE_IFR_NETMASK"],
 	[AC_MSG_RESULT([no])])