Index: include/stdalign.h
===================================================================
RCS file: include/stdalign.h
diff -N include/stdalign.h
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ include/stdalign.h	2 Oct 2016 13:42:54 -0000
@@ -0,0 +1,55 @@
+/*	$NetBSD$	*/
+
+/*-
+ * Copyright (c) 2016 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Kamil Rytarowski.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _STDALIGN_H_
+#define _STDALIGN_H_
+
+/*-
+ * ISO/IEC 9899:201x 7.15 Alignment <stdalign.h>
+ * ISO/IEC N3242=11-0012 (C++11)
+ * ISO/IEC N3797 (C++14)
+ */
+
+#ifndef __alignas_is_defined
+#if ((__cplusplus - 0) < 201103L)
+#define alignas	_Alignas
+#endif
+#define __alignas_is_defined 1
+#endif /* __alignas_is_defined */
+
+#ifndef __alignof_is_defined
+#if ((__cplusplus - 0) < 201103L)
+#define alignof	_Alignof
+#endif
+#define __alignof_is_defined 1
+#endif /* __alignof_is_defined */
+
+#endif