From 162f322d6b2e624d3988df8c80a218c8616e45eb Mon Sep 17 00:00:00 2001
From: Rosen Penev <rosenp@gmail.com>
Date: Fri, 23 Aug 2019 13:35:28 -0700
Subject: [PATCH] Replace usleep with sleep

usleep was deprecated with POSIX 2008 and optionally unavailable with
uClibc-ng.
---
 src/thread_base.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/thread_base.cc b/src/thread_base.cc
index 081791d4c..81f7ec635 100644
--- a/src/thread_base.cc
+++ b/src/thread_base.cc
@@ -66,7 +66,7 @@ class lt_cacheline_aligned thread_queue_hack {
 
   thread_queue_hack() { std::memset(this, 0, sizeof(thread_queue_hack)); }
 
-  void     lock()   { while (!__sync_bool_compare_and_swap(&m_lock, 0, 1)) usleep(0); }
+  void     lock()   { while (!__sync_bool_compare_and_swap(&m_lock, 0, 1)) sleep(0); }
   void     unlock() { __sync_bool_compare_and_swap(&m_lock, 1, 0); }
 
   iterator begin() { return m_queue; }