--- lib/template/macros.c.orig	2024-04-07 10:46:50.064388000 +0300
+++ lib/template/macros.c	2024-04-07 10:47:47.402072000 +0300
@@ -277,12 +277,14 @@
     return 0;
   if (g_sockaddr_inet_check(msg->saddr))
     return 4;
+#if SYSLOG_NG_ENABLE_IPV6
   if (g_sockaddr_inet6_check(msg->saddr))
     {
       if (g_sockaddr_inet6_is_v4_mapped(msg->saddr))
         return 4;
       return 6;
     }
+#endif
   return 0;
 }