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-rw-r--r--src/core/ngx_connection.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/core/ngx_connection.h b/src/core/ngx_connection.h
index 171078b23..cc6a92989 100644
--- a/src/core/ngx_connection.h
+++ b/src/core/ngx_connection.h
@@ -56,6 +56,10 @@ struct ngx_listening_s {
unsigned shared:1; /* shared between threads or processes */
unsigned addr_ntop:1;
+#if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
+ unsigned ipv6only:2;
+#endif
+
#if (NGX_HAVE_DEFERRED_ACCEPT)
unsigned deferred_accept:1;
unsigned delete_deferred:1;