Deactivate definition of ss_family and ss_len. Fixes bug #440486.
diff --git a/configure.in b/configure.in
index bcdbc67..c6b7a55 100644
--- a/configure.in
+++ b/configure.in
@@ -385,7 +385,8 @@
 fi
 
 # Check for enable-ipv6
-OPT="$OPT -Dss_family=__ss_family -Dss_len=__ss_len"
+# XXX definition of ss_family disabled until author clarifies rationale.
+# DEFS="$DEFS -Dss_family=__ss_family -Dss_len=__ss_len"
 AC_MSG_CHECKING([whether to enable ipv6])
 AC_ARG_ENABLE(ipv6,
 [  --enable-ipv6                   Enable ipv6 (with ipv4) support