From 9f0f533bc8f491e1612b2e6eaf10215aba54023b Mon Sep 17 00:00:00 2001
From: Binbin <binloveplay1314@qq.com>
Date: Tue, 2 Aug 2022 23:00:11 +0800
Subject: [PATCH] Solve usleep compilation warning in keyspace_events.c
 (#11073)
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There is a -Wimplicit-function-declaration warning in here:
```
keyspace_events.c: In function ‘KeySpace_NotificationGeneric’:
keyspace_events.c:67:9: warning: implicit declaration of function ‘usleep’; did you mean ‘sleep’? [-Wimplicit-function-declaration]
   67 |         usleep(1);
      |         ^~~~~~
      |         sleep
```
---
 tests/modules/keyspace_events.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tests/modules/keyspace_events.c b/tests/modules/keyspace_events.c
index c0f79bf37..d394786b3 100644
--- a/tests/modules/keyspace_events.c
+++ b/tests/modules/keyspace_events.c
@@ -30,6 +30,7 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#define _BSD_SOURCE
 #define _DEFAULT_SOURCE /* For usleep */
 
 #include "redismodule.h"