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-rw-r--r--sql/mysqld.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/sql/mysqld.h b/sql/mysqld.h
index 44b0491f138..00e1894cbf9 100644
--- a/sql/mysqld.h
+++ b/sql/mysqld.h
@@ -318,6 +318,10 @@ extern PSI_rwlock_key key_rwlock_LOCK_grant, key_rwlock_LOCK_logger,
key_rwlock_LOCK_sys_init_connect, key_rwlock_LOCK_sys_init_slave,
key_rwlock_LOCK_system_variables_hash, key_rwlock_query_cache_query_lock;
+#ifdef HAVE_REPLICATION
+extern PSI_mutex_key key_LOCK_alter_safety;
+#endif
+
#ifdef HAVE_MMAP
extern PSI_cond_key key_PAGE_cond, key_COND_active, key_COND_pool;
#endif /* HAVE_MMAP */