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-rw-r--r--db2/include/txn_ext.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/db2/include/txn_ext.h b/db2/include/txn_ext.h
index 9b617bb68c..7d694f070d 100644
--- a/db2/include/txn_ext.h
+++ b/db2/include/txn_ext.h
@@ -1,4 +1,6 @@
 /* DO NOT EDIT: automatically built by dist/distrib. */
+#ifndef _txn_ext_h_
+#define _txn_ext_h_
 int __txn_regop_log
     __P((DB_LOG *, DB_TXN *, DB_LSN *, u_int32_t,
     u_int32_t));
@@ -16,3 +18,4 @@ int __txn_init_recover __P((DB_ENV *));
 int __txn_regop_recover
     __P((DB_LOG *, DBT *, DB_LSN *, int, void *));
 int __txn_ckp_recover __P((DB_LOG *, DBT *, DB_LSN *, int, void *));
+#endif /* _txn_ext_h_ */