Bugfix

* libmailutils/sockaddr/fromnode.c [!MAILUTILS_IPV6] Handle
AF_UNSPEC same way as AF_INET.
Do not bail out if service is not given, assume port = 0 instead.
* mailutils/base/version.c (mu_conf_option): Reflect IPv6 support.

@@ -37,6 +37,9 @@ static struct mu_conf_option mu_conf_option[] = {
   { "MAILSPOOLDIR=" MU_PATH_MAILDIR, N_("Default mail spool directory") },
   { "SCHEME=" MU_DEFAULT_SCHEME, N_("Default mailbox type") },
   { "LOG_FACILITY=" LOG_FACILITY_STRING, N_("Default syslog facility") },
+#ifdef MAILUTILS_IPV6
+  { "IPV6", N_("IPv6 support") },
+#endif
 #ifdef USE_LIBPAM
   { "USE_LIBPAM", N_("PAM support") },
 #endif

@@ -162,7 +162,7 @@ mu_sockaddr_from_node (struct mu_sockaddr **retval, const char *node,
       freeaddrinfo (res);
     }
 #else
-  if (mh->family == AF_INET)
+  if (mh->family == AF_INET || mh->family == AF_UNSPEC)
     {
       short port;
       struct hostent *hp;
@@ -200,8 +200,8 @@ mu_sockaddr_from_node (struct mu_sockaddr **retval, const char *node,
       else if (mh->port)
 	port = htons (mh->port);
       else
-	return MU_ERR_NONAME;
-
+	port = 0;
+      
       if (!node)
 	{
 	  struct sockaddr_in s_in;