From db0691d2362465720845a16d3ec96c1e60359893 Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Sun, 27 Jun 2021 08:24:59 -0600
Subject: [PATCH] macOS: fix compilation warnings on macOS versions where
 clock_gettime() is finally implemented

---
 libs/pbd/microseconds.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libs/pbd/microseconds.cc b/libs/pbd/microseconds.cc
index 49d91c253f..462a3054f6 100644
--- a/libs/pbd/microseconds.cc
+++ b/libs/pbd/microseconds.cc
@@ -38,9 +38,10 @@ static double timer_rate_usecs = 0.0;
  */
 
 #ifdef __MACH__
+#include <mach/mach_time.h>
+#ifndef CLOCK_REALTIME
 /* Thanks Apple for not implementing this basic SUSv2, POSIX.1-2001 function
  */
-#include <mach/mach_time.h>
 #define CLOCK_REALTIME 0
 #define CLOCK_MONOTONIC 0
 int
@@ -61,6 +62,7 @@ clock_gettime (int /*clk_id*/, struct timespec* t)
 	return 0;
 }
 #endif
+#endif
 
 void
 PBD::microsecond_timer_init ()