From 66a2c4993bb9685d009a2e98e82cb7f84975fbe9 Mon Sep 17 00:00:00 2001
From: sheldonlyr <sheldon.lee@qq.com>
Date: Sat, 24 Jun 2017 15:38:18 +0800
Subject: [PATCH] More meaningful thread id for OSX

---
 include/spdlog/details/os.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/spdlog/details/os.h b/include/spdlog/details/os.h
index 76aacf6d..735f6014 100644
--- a/include/spdlog/details/os.h
+++ b/include/spdlog/details/os.h
@@ -330,7 +330,11 @@ inline size_t _thread_id()
     long tid;
     thr_self(&tid);
     return static_cast<size_t>(tid);
-#else //Default to standard C++11 (OSX and other Unix)
+#elif __APPLE__
+    uint64_t tid;
+    pthread_threadid_np(nullptr, &tid);
+    return static_cast<size_t>(tid);
+#else //Default to standard C++11 (other Unix)
     return static_cast<size_t>(std::hash<std::thread::id>()(std::this_thread::get_id()));
 #endif
 }