From 76a9e6f27bb0c7b547989c3b80cf8cc0a148064d Mon Sep 17 00:00:00 2001
From: Nicholas Marriott <nicholas.marriott@gmail.com>
Date: Wed, 12 Oct 2016 10:52:04 +0100
Subject: [PATCH] NetBSD needs _OPENBSD_SOURCE for reallocarray.

---
 Makefile.am | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Makefile.am b/Makefile.am
index 81dc4c71..1685c3dc 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -63,6 +63,11 @@ if IS_AIX
 DEFS += -D_LINUX_SOURCE_COMPAT=1
 endif
 
+# Set flags for NetBSD.
+if IS_NETBSD
+CPPFLAGS += -D_OPENBSD_SOURCE
+endif
+
 # List of sources.
 dist_tmux_SOURCES = \
 	alerts.c \