From bfd8c1fdd2218c0c4d965338291b084a9ff52ec9 Mon Sep 17 00:00:00 2001
From: Daniel Dai <764122422@qq.com>
Date: Wed, 20 Nov 2019 20:18:00 -0500
Subject: [PATCH] macro fix

macro fix
---
 src/bio.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/bio.h b/src/bio.h
index 4b15d1c4d..6c2155941 100644
--- a/src/bio.h
+++ b/src/bio.h
@@ -27,6 +27,9 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifndef __BIO_H
+#define __BIO_H
+
 /* Exported API */
 void bioInit(void);
 void bioCreateBackgroundJob(int type, void *arg1, void *arg2, void *arg3);
@@ -40,3 +43,5 @@ void bioKillThreads(void);
 #define BIO_AOF_FSYNC     1 /* Deferred AOF fsync. */
 #define BIO_LAZY_FREE     2 /* Deferred objects freeing. */
 #define BIO_NUM_OPS       3
+
+#endif