From ced17409cbe8ffab2f479cf4a6d6b5a4e24c54c8 Mon Sep 17 00:00:00 2001
From: H William Welliver <william@welliver.org>
Date: Thu, 17 Dec 2020 18:11:29 -0500
Subject: [PATCH] configure: add stdlib.h to nonblocking test (if we have it).

Hopefully fixes configuration failure on latest darwin due to implicit definition of exit()
---
 src/fd_control.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/fd_control.c b/src/fd_control.c
index 14c014daa5..8c2a8eb6cf 100644
--- a/src/fd_control.c
+++ b/src/fd_control.c
@@ -38,6 +38,9 @@
 #include <sys/socket.h>
 #endif
 
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
 #include <errno.h>
 
 #ifdef HAVE_SYS_ERRNO_H
-- 
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