diff options
Diffstat (limited to 'gnulib/import/stddef.in.h')
| -rw-r--r-- | gnulib/import/stddef.in.h | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/gnulib/import/stddef.in.h b/gnulib/import/stddef.in.h index 2e50a1f..3a0052d 100644 --- a/gnulib/import/stddef.in.h +++ b/gnulib/import/stddef.in.h @@ -1,6 +1,6 @@ /* A substitute for POSIX 2008 <stddef.h>, for platforms that have issues. - Copyright (C) 2009-2020 Free Software Foundation, Inc. + Copyright (C) 2009-2021 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -49,6 +49,23 @@ # ifndef _@GUARD_PREFIX@_STDDEF_H +/* On AIX 7.2, with xlc in 64-bit mode, <stddef.h> defines max_align_t to a + type with alignment 4, but 'long' has alignment 8. */ +# if defined _AIX && defined _ARCH_PPC64 +# if !GNULIB_defined_max_align_t +# ifdef _MAX_ALIGN_T +/* /usr/include/stddef.h has already defined max_align_t. Override it. */ +typedef long rpl_max_align_t; +# define max_align_t rpl_max_align_t +# else +/* Prevent /usr/include/stddef.h from defining max_align_t. */ +typedef long max_align_t; +# define _MAX_ALIGN_T +# endif +# define GNULIB_defined_max_align_t 1 +# endif +# endif + /* The include_next requires a split double-inclusion guard. */ # @INCLUDE_NEXT@ @NEXT_STDDEF_H@ @@ -97,7 +114,7 @@ and the C11 standard allows this. Work around this problem by using __alignof__ (which returns 8 for double) rather than _Alignof (which returns 4), and align each union member accordingly. */ -# ifdef __GNUC__ +# if defined __GNUC__ || (__clang_major__ >= 4) # define _GL_STDDEF_ALIGNAS(type) \ __attribute__ ((__aligned__ (__alignof__ (type)))) # else |