From 03af971f8edadd51e3f1ec3c7bb4f6bdbf622854 Mon Sep 17 00:00:00 2001
From: Paul Licameli <paul.licameli@audacityteam.org>
Date: Tue, 13 Nov 2018 08:26:12 -0500
Subject: [PATCH] lib-src/portmidi/porttime: fix warning about macro
 redefinition...

... there is a difference in the type, not the value, of the constant defined
by the two versions of the macro.  See clock_types.h in the Mac SDK:

define NSEC_PER_MSEC   1000000ull      /* nanoseconds per millisecond */
---
 lib-src/portmidi/porttime/ptmacosx_mach.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib-src/portmidi/porttime/ptmacosx_mach.c b/lib-src/portmidi/porttime/ptmacosx_mach.c
index c23210e4d..510964b3e 100644
--- a/lib-src/portmidi/porttime/ptmacosx_mach.c
+++ b/lib-src/portmidi/porttime/ptmacosx_mach.c
@@ -14,6 +14,7 @@
 #include "sys/time.h"
 #include "pthread.h"
 
+#undef NSEC_PER_MSEC
 #define NSEC_PER_MSEC 1000000
 #define THREAD_IMPORTANCE 30