[src/trunk]: src/include add max_align_t. C11 defines this and GCC 5.3 reall...

[mrg <mrg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/98c947d7c3f1
branches:  trunk
changeset: 344211:98c947d7c3f1
user:      mrg <mrg%NetBSD.org@localhost>
date:      Thu Mar 17 00:03:38 2016 +0000

description:
add max_align_t.  C11 defines this and GCC 5.3 really wants it.

XXX: language laywers, please feel free to fix this as necessary.

diffstat:

 include/stddef.h |  8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diffs (21 lines):

diff -r 638269827054 -r 98c947d7c3f1 include/stddef.h
--- a/include/stddef.h  Thu Mar 17 00:00:44 2016 +0000
+++ b/include/stddef.h  Thu Mar 17 00:03:38 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: stddef.h,v 1.17 2013/12/12 17:53:03 matt Exp $ */
+/*     $NetBSD: stddef.h,v 1.18 2016/03/17 00:03:38 mrg Exp $  */
 
 /*-
  * Copyright (c) 1990, 1993
@@ -66,5 +66,11 @@
 #define        offsetof(type, member) __offsetof__((reinterpret_cast<size_t> \
     (&reinterpret_cast<const volatile char &>(static_cast<type *>(0)->member))))
 #endif  
+
+typedef union {
+       char *_c;
+       long double _ld;
+       long long int _ll;
+} max_align_t;
  
 #endif /* _STDDEF_H_ */