diff options
Diffstat (limited to 'lib/stddef.in.h')
| -rw-r--r-- | lib/stddef.in.h | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/lib/stddef.in.h b/lib/stddef.in.h index ba7195a9102..0f506a5b18b 100644 --- a/lib/stddef.in.h +++ b/lib/stddef.in.h @@ -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@ @@ -86,8 +103,10 @@ we are currently compiling with gcc. On MSVC, max_align_t is defined only in C++ mode, after <cstddef> was included. Its definition is good since it has an alignment of 8 (on x86 - and x86_64). */ -#if defined _MSC_VER && defined __cplusplus + and x86_64). + Similarly on OS/2 kLIBC. */ +#if (defined _MSC_VER || (defined __KLIBC__ && !defined __LIBCN__)) \ + && defined __cplusplus # include <cstddef> #else # if ! (@HAVE_MAX_ALIGN_T@ || defined _GCC_MAX_ALIGN_T) |