From 7a71965e9761f80aa4508472c5b1e3ab03ba018a Mon Sep 17 00:00:00 2001
From: Harry Sintonen <sintonen@iki.fi>
Date: Mon, 30 Mar 2020 16:52:43 +0300
Subject: build: fixed build for systems with select() in unistd.h

Closes #5169
---
 acinclude.m4 | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'acinclude.m4')

diff --git a/acinclude.m4 b/acinclude.m4
index 3ad55c388..089449bac 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -1887,6 +1887,8 @@ struct Library *SocketBase = NULL;
 #endif
 #ifdef HAVE_SYS_SELECT_H
 #include <sys/select.h>
+#elif defined(HAVE_UNISTD_H)
+#include <unistd.h>
 #endif
 #ifdef HAVE_SYS_SOCKET_H
 #include <sys/socket.h>
@@ -1950,6 +1952,8 @@ struct Library *SocketBase = NULL;
 #endif
 #ifdef HAVE_SYS_SELECT_H
 #include <sys/select.h>
+#elif defined(HAVE_UNISTD_H)
+#include <unistd.h>
 #endif
 #ifdef HAVE_SYS_SOCKET_H
 #include <sys/socket.h>
-- 
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