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-rw-r--r--innobase/include/os0file.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/innobase/include/os0file.h b/innobase/include/os0file.h
index 362e3552411..adbc4afafd2 100644
--- a/innobase/include/os0file.h
+++ b/innobase/include/os0file.h
@@ -19,7 +19,9 @@ Created 10/21/1995 Heikki Tuuri
typedef struct fil_node_struct fil_node_t;
+#ifdef UNIV_DO_FLUSH
extern ibool os_do_not_call_flush_at_each_write;
+#endif /* UNIV_DO_FLUSH */
extern ibool os_has_said_disk_full;
extern ibool os_aio_print_debug;