From 56c4a9c7607ef6b21ef334c0446bec0c99ee0c7a Mon Sep 17 00:00:00 2001
From: Yueh-Hsuan Chiang <yhchiang@fb.com>
Date: Fri, 13 Mar 2015 18:09:01 -0700
Subject: [PATCH] Fix compile warning in thread_status_util.h on Mac

Summary:
Fix compile warning in thread_status_util.h on Mac

Test Plan:
make dbg -j32
---
 util/thread_status_util.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/util/thread_status_util.h b/util/thread_status_util.h
index 769144e61..1bfc80ba2 100644
--- a/util/thread_status_util.h
+++ b/util/thread_status_util.h
@@ -116,8 +116,10 @@ class AutoThreadOperationStageUpdater {
       ThreadStatus::OperationStage stage);
   ~AutoThreadOperationStageUpdater();
 
+#if ROCKSDB_USING_THREAD_STATUS
  private:
   ThreadStatus::OperationStage prev_stage_;
+#endif
 };
 
 }  // namespace rocksdb