From accf58d965cfde5075a2d38819ea6d8b7525fa30 Mon Sep 17 00:00:00 2001
From: Abtin Keshavarzian <abtink@google.com>
Date: Thu, 6 Sep 2018 10:15:38 -0700
Subject: [PATCH] [posix-app] include <util.h> on darwin target for forkpty
 (#3030)

---
 src/posix/platform/radio_spinel.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/posix/platform/radio_spinel.cpp b/src/posix/platform/radio_spinel.cpp
index 0625afd3d..e2757faa0 100644
--- a/src/posix/platform/radio_spinel.cpp
+++ b/src/posix/platform/radio_spinel.cpp
@@ -39,8 +39,12 @@
 #include <errno.h>
 #include <fcntl.h>
 #if OPENTHREAD_CONFIG_POSIX_APP_ENABLE_PTY_DEVICE
+#ifdef OPENTHREAD_TARGET_DARWIN
+#include <util.h>
+#else
 #include <pty.h>
 #endif
+#endif
 #include <stdarg.h>
 #include <stdlib.h>
 #include <sys/resource.h>