diff --git a/bind-dyndb-ldap-fix-clang-atomic.patch b/bind-dyndb-ldap-fix-clang-atomic.patch
new file mode 100644
index 0000000000000000000000000000000000000000..7d54a802f40dc6fac150993243fb7acc94febe26
--- /dev/null
+++ b/bind-dyndb-ldap-fix-clang-atomic.patch
@@ -0,0 +1,95 @@
+diff -u -r bind-dyndb-ldap-11.10/src/ldap_driver.c bind-dyndb-ldap-11.10/src/ldap_driver.c
+--- bind-dyndb-ldap-11.10/src/ldap_driver.c	2022-06-21 14:59:52.000000000 +0800
++++ bind-dyndb-ldap-11.10/src/ldap_driver.c	2023-05-08 11:35:51.000000000 +0800
+@@ -69,7 +69,7 @@
+ 
+ struct ldapdb {
+ 	dns_db_t			common;
+-	isc_refcount_t			refs;
++	_Atomic unsigned long refs;
+ 	ldap_instance_t			*ldap_inst;
+ 
+ 	/**
+@@ -134,10 +134,10 @@
+ 
+ 	REQUIRE(VALID_LDAPDB(ldapdb));
+ 
+-#if LIBDNS_VERSION_MAJOR < 1600
+-	isc_refcount_increment(&ldapdb->refs, NULL);
++	#if LIBDNS_VERSION_MAJOR < 1600
++    atomic_fetch_add_explicit(&ldapdb->refs, 1, memory_order_relaxed);
+ #else
+-	isc_refcount_increment(&ldapdb->refs);
++    atomic_fetch_add_explicit(&ldapdb->refs, 1, memory_order_relaxed);
+ #endif
+ 	*targetp = source;
+ }
+diff -u -r bind-dyndb-ldap-11.10/src/ldap_helper.c bind-dyndb-ldap-11.10/src/ldap_helper.c
+--- bind-dyndb-ldap-11.10/src/ldap_helper.c	2022-06-21 14:59:52.000000000 +0800
++++ bind-dyndb-ldap-11.10/src/ldap_helper.c	2023-05-08 11:36:52.000000000 +0800
+@@ -166,7 +166,7 @@
+ 	isc_thread_t		watcher;
+ 	bool		exiting;
+ 	/* Non-zero if this instance is 'tainted' by an unrecoverable problem. */
+-	isc_refcount_t		errors;
++	_Atomic unsigned long errors;
+ 
+ 	/* Settings. */
+ 	settings_set_t		*local_settings;
+diff -u -r bind-dyndb-ldap-11.10/src/mldap.c bind-dyndb-ldap-11.10/src/mldap.c
+--- bind-dyndb-ldap-11.10/src/mldap.c	2022-06-21 14:59:52.000000000 +0800
++++ bind-dyndb-ldap-11.10/src/mldap.c	2023-05-08 11:30:40.000000000 +0800
+@@ -65,7 +65,7 @@
+ struct mldapdb {
+ 	isc_mem_t	*mctx;
+ 	metadb_t	*mdb;
+-	isc_refcount_t	generation;
++	_Atomic unsigned long generation;
+ };
+ 
+ 
+@@ -80,7 +80,7 @@
+ 	ZERO_PTR(mldap);
+ 	isc_mem_attach(mctx, &mldap->mctx);
+ 
+-	isc_refcount_init(&mldap->generation, 0);
++	atomic_init(&mldap->generation, 0);
+ 	CHECK(metadb_new(mctx, &mldap->mdb));
+ 
+ 	*mldapp = mldap;
+diff -u -r bind-dyndb-ldap-11.10/src/syncrepl.c bind-dyndb-ldap-11.10/src/syncrepl.c
+--- bind-dyndb-ldap-11.10/src/syncrepl.c	2022-06-21 14:59:52.000000000 +0800
++++ bind-dyndb-ldap-11.10/src/syncrepl.c	2023-05-08 22:41:58.000000000 +0800
+@@ -87,7 +87,7 @@
+  * @see ldap_sync_search_entry()
+  */
+ struct sync_ctx {
+-	isc_refcount_t			task_cnt; /**< provides atomic access */
++	_Atomic unsigned long task_cnt; /**< provides atomic access */
+ 	isc_mem_t			*mctx;
+ 	/** limit number of unprocessed LDAP events in queue
+ 	 *  (memory consumption is one of problems) */
+@@ -211,9 +211,9 @@
+ 
+ 	bev = (sync_barrierev_t *)event;
+ #if LIBDNS_VERSION_MAJOR < 1600
+-	isc_refcount_decrement(&bev->sctx->task_cnt, &cnt);
++    cnt = atomic_fetch_sub_explicit(&bev->sctx->task_cnt, 1, memory_order_acq_rel);
+ #else
+-	cnt = isc_refcount_decrement(&bev->sctx->task_cnt);
++    cnt = atomic_fetch_sub_explicit(&bev->sctx->task_cnt, 1, memory_order_acq_rel);
+ #endif
+ 	if (cnt == REFCOUNT_FLOOR) {
+ 		sync_barrierev_t *fev = NULL;
+@@ -336,9 +336,9 @@
+ 		UNLINK(sctx->tasks, taskel, link);
+ 		isc_task_detach(&taskel->task);
+ #if LIBDNS_VERSION_MAJOR < 1600
+-		isc_refcount_decrement(&sctx->task_cnt, NULL);
++    (void)atomic_fetch_sub_explicit(&sctx->task_cnt, 1, memory_order_acq_rel);
+ #else
+-		(void)isc_refcount_decrement(&sctx->task_cnt);
++    (void)atomic_fetch_sub_explicit(&sctx->task_cnt, 1, memory_order_acq_rel);
+ #endif
+ 		SAFE_MEM_PUT_PTR(sctx->mctx, taskel);
+ 	}
diff --git a/bind-dyndb-ldap.spec b/bind-dyndb-ldap.spec
index d001e0d45c31fb8a9082902341f82b42eb80d6aa..a2de4b6cd5b64268a6c532005f7fe9021ae9d05c 100644
--- a/bind-dyndb-ldap.spec
+++ b/bind-dyndb-ldap.spec
@@ -5,7 +5,7 @@
 
 Name:           bind-dyndb-ldap
 Version:        11.10
-Release:        3
+Release:        4
 Summary:        LDAP back-end plug-in for BIND
 License:        GPLv2+
 URL:            https://releases.pagure.org/bind-dyndb-ldap
@@ -21,6 +21,10 @@ Patch6:         backport-bind-dyndb-ldap-11.10-bind-9.18.19.patch
 Patch7:         backport-bind-dyndb-ldap-11.10-dns_name_init.patch
 Patch8:         backport-bind-dyndb-ldap-bind-9.18.24.patch
 
+%if "%toolchain" == "clang"
+Patch9000:         bind-dyndb-ldap-fix-clang-atomic.patch
+%endif
+
 BuildRequires:  bind-devel >= %{bind_version}
 BuildRequires:  krb5-devel
 BuildRequires:  openldap-devel
@@ -101,6 +105,10 @@ sed -i.bak -e "$SEDSCRIPT" /etc/named.conf
 
 
 %changelog
+* Fri Mar 22 2024 yoo <sunyuechi@iscas.ac.cn> - 11.10-4
+- fix clang build error: Atomic
+- Signed-off-by: shafeipaozi <sunbo.oerv@isrc.iscas.ac.cn>
+
 * Wed Mar 20 2024 xinghe <xinghe2@h-partners.com> - 11.10-3
 - Type:bugfix
 - CVE:NA