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-rw-r--r--src/core/ngx_resolver.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/core/ngx_resolver.h b/src/core/ngx_resolver.h
index d27c2042d..264c8c42b 100644
--- a/src/core/ngx_resolver.h
+++ b/src/core/ngx_resolver.h
@@ -123,6 +123,7 @@ typedef struct {
ngx_queue_t addr_expire_queue;
#if (NGX_HAVE_INET6)
+ ngx_uint_t ipv6; /* unsigned ipv6:1; */
ngx_rbtree_t addr6_rbtree;
ngx_rbtree_node_t addr6_sentinel;
ngx_queue_t addr6_resend_queue;