diff options
Diffstat (limited to 'lib/stddef.in.h')
| -rw-r--r-- | lib/stddef.in.h | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/lib/stddef.in.h b/lib/stddef.in.h index 71aed49d..668af541 100644 --- a/lib/stddef.in.h +++ b/lib/stddef.in.h @@ -1,6 +1,6 @@ /* A substitute for POSIX 2008 <stddef.h>, for platforms that have issues. - Copyright (C) 2009-2016 Free Software Foundation, Inc. + Copyright (C) 2009-2017 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of either: @@ -22,7 +22,7 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License - along with this program; if not, see <http://www.gnu.org/licenses/>. */ + along with this program; if not, see <https://www.gnu.org/licenses/>. */ /* Written by Eric Blake. */ @@ -94,24 +94,28 @@ a hack in case the configure-time test was done with g++ even though we are currently compiling with gcc. */ #if ! (@HAVE_MAX_ALIGN_T@ || defined _GCC_MAX_ALIGN_T) +# if !GNULIB_defined_max_align_t /* On the x86, the maximum storage alignment of double, long, etc. is 4, but GCC's C11 ABI for x86 says that max_align_t has an alignment of 8, 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__ -# define _GL_STDDEF_ALIGNAS(type) \ - __attribute__ ((__aligned__ (__alignof__ (type)))) -# else -# define _GL_STDDEF_ALIGNAS(type) /* */ -# endif +# ifdef __GNUC__ +# define _GL_STDDEF_ALIGNAS(type) \ + __attribute__ ((__aligned__ (__alignof__ (type)))) +# else +# define _GL_STDDEF_ALIGNAS(type) /* */ +# endif typedef union { char *__p _GL_STDDEF_ALIGNAS (char *); double __d _GL_STDDEF_ALIGNAS (double); long double __ld _GL_STDDEF_ALIGNAS (long double); long int __i _GL_STDDEF_ALIGNAS (long int); -} max_align_t; +} rpl_max_align_t; +# define max_align_t rpl_max_align_t +# define GNULIB_defined_max_align_t 1 +# endif #endif # endif /* _@GUARD_PREFIX@_STDDEF_H */ |