From bd3cf55b5416a717563e85b0babe202183c98e91 Mon Sep 17 00:00:00 2001
From: sin <sin@2f30.org>
Date: Mon, 17 Nov 2014 14:50:12 +0000
Subject: [PATCH] Define HOST_NAME_MAX if necessary

Some systems do not provide this, namely FreeBSD and NetBSD.
---
 util.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/util.h b/util.h
index 0b94152..b152ffd 100644
--- a/util.h
+++ b/util.h
@@ -1,9 +1,14 @@
 /* See LICENSE file for copyright and license details. */
+#include <sys/types.h>
+#include <limits.h>
 #include <regex.h>
 #include <stddef.h>
-#include <sys/types.h>
 #include "arg.h"
 
+#ifndef HOST_NAME_MAX
+#define HOST_NAME_MAX _POSIX_HOST_NAME_MAX
+#endif
+
 #define UTF8_POINT(c) (((c) & 0xc0) != 0x80)
 
 #undef MIN