From 82146e291b8fb7d283fcae2f084556f8e06a681c Mon Sep 17 00:00:00 2001
From: Job Snijders <job@sobornost.net>
Date: Tue, 17 Aug 2021 12:14:07 +0000
Subject: [PATCH] Add _null.h from OpenBSD

---
 include/sys/_null.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 include/sys/_null.h

diff --git a/include/sys/_null.h b/include/sys/_null.h
new file mode 100644
index 0000000..5d15401
--- /dev/null
+++ b/include/sys/_null.h
@@ -0,0 +1,18 @@
+/*	$OpenBSD: _null.h,v 1.2 2016/09/09 22:07:58 millert Exp $	*/
+
+/*
+ * Written by Todd C. Miller, September 9, 2016
+ * Public domain.
+ */
+
+#ifndef NULL
+#if !defined(__cplusplus)
+#define	NULL	((void *)0)
+#elif __cplusplus >= 201103L
+#define	NULL	nullptr
+#elif defined(__GNUG__)
+#define	NULL	__null
+#else
+#define	NULL	0L
+#endif
+#endif