From fe8b0105d29ef9f4addd1ced9cb28729b85ef554 Mon Sep 17 00:00:00 2001
From: Isaac Connor <iconnor@IsaacsiMac.home.connortechnology.com>
Date: Wed, 14 Jun 2017 10:57:40 -0400
Subject: [PATCH] add apple-specific way of getting the thread id

---
 src/zm_timer.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/zm_timer.h b/src/zm_timer.h
index 221aec222..582badccb 100644
--- a/src/zm_timer.h
+++ b/src/zm_timer.h
@@ -43,6 +43,10 @@ private:
 #else
   #ifdef __FreeBSD_kernel__
     if ( (syscall(SYS_thr_self, &tid)) < 0 ) // Thread/Process id
+  #elif defined(__APPLE__) && defined(__MACH__)
+    uint64_t tid64;
+    pthread_threadid_np(NULL, &tid64);
+    tid = (pid_t)tid64;
   #else
     tid=syscall(SYS_gettid);
   #endif