From eac1bbd06872c273f16ac0f9976b0aef026b701b Mon Sep 17 00:00:00 2001
From: Darren Tucker <dtucker@zip.com.au>
Date: Mon, 18 Jul 2016 17:12:22 +1000
Subject: [PATCH] Conditionally include err.h.

---
 regress/modpipe.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/regress/modpipe.c b/regress/modpipe.c
index c43e9cba1..5f4824b51 100755
--- a/regress/modpipe.c
+++ b/regress/modpipe.c
@@ -25,6 +25,9 @@
 #include <stdarg.h>
 #include <stdlib.h>
 #include <errno.h>
+#ifdef HAVE_ERR_H
+# include <err.h>
+#endif
 #include "openbsd-compat/getopt_long.c"
 
 static void