From 1b05dff080fe50937a02cfde661db58ace21c553 Mon Sep 17 00:00:00 2001
From: grim-trigger <36375872+grim-trigger@users.noreply.github.com>
Date: Tue, 7 May 2019 00:17:33 +0000
Subject: [PATCH] Fix portability issue with pthreads

This change resolves the following issue:
https://github.com/bitcoin/bitcoin/issues/15951

Only tested on OpenBSD 6.5/amd64
---
 src/util/threadnames.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/util/threadnames.cpp b/src/util/threadnames.cpp
index 7b0d744aeca..b221b0c975a 100644
--- a/src/util/threadnames.cpp
+++ b/src/util/threadnames.cpp
@@ -9,6 +9,11 @@
 #include <atomic>
 #include <thread>
 
+#if (defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__DragonFly__))
+#include <pthread.h>
+#include <pthread_np.h>
+#endif
+
 #include <util/threadnames.h>
 
 #ifdef HAVE_SYS_PRCTL_H