From 20c5672ca62ad9f0e62c154a5b8bb2bdd72cd23a Mon Sep 17 00:00:00 2001
From: Bob Halley <source@isc.org>
Date: Thu, 11 Mar 1999 20:00:13 +0000
Subject: [PATCH] include unistd.h to get getopt

---
 bin/tests/rbt_test.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/bin/tests/rbt_test.c b/bin/tests/rbt_test.c
index fcf8c1e804..bd5286d803 100644
--- a/bin/tests/rbt_test.c
+++ b/bin/tests/rbt_test.c
@@ -19,6 +19,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
+#include <unistd.h>
 
 #include <isc/boolean.h>