From 0dc14b83818f6166d60e939ce2cc1c4806d39c4a Mon Sep 17 00:00:00 2001
From: Harry Sintonen <sintonen@iki.fi>
Date: Thu, 10 Oct 2019 12:52:51 +0300
Subject: socketpair: fix include and define for older TCP header systems

fixed build for systems that need netinet/in.h for IPPROTO_TCP and are
missing INADDR_LOOPBACK

Closes #4480
---
 lib/socketpair.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'lib/socketpair.c')

diff --git a/lib/socketpair.c b/lib/socketpair.c
index ffdfdad7f..1f0e2e4a4 100644
--- a/lib/socketpair.c
+++ b/lib/socketpair.c
@@ -37,6 +37,12 @@
 #ifdef HAVE_NETDB_H
 #include <netdb.h>
 #endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h> /* IPPROTO_TCP */
+#endif
+#ifndef INADDR_LOOPBACK
+#define INADDR_LOOPBACK 0x7f000001
+#endif /* !INADDR_LOOPBACK */
 #endif /* !WIN32 */
 
 /* The last 3 #include files should be in this order */
-- 
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