# https://trac.macports.org/ticket/68213

--- a/src/clock.hpp	2023-08-27 04:19:35.000000000 +0700
+++ b/src/clock.hpp	2023-09-24 23:52:51.000000000 +0700
@@ -7,14 +7,6 @@
 #include "stdint.hpp"
 
 #if defined ZMQ_HAVE_OSX
-// TODO this is not required in this file, but condition_variable.hpp includes
-// clock.hpp to get these definitions
-#ifndef CLOCK_REALTIME
-#define CLOCK_REALTIME 0
-#endif
-#ifndef HAVE_CLOCK_GETTIME
-#define HAVE_CLOCK_GETTIME
-#endif
 
 #include <mach/clock.h>
 #include <mach/mach.h>
