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-rw-r--r--macros/texinfo/texinfo/tp/Texinfo/XS/gnulib/lib/stddef.in.h59
1 files changed, 46 insertions, 13 deletions
diff --git a/macros/texinfo/texinfo/tp/Texinfo/XS/gnulib/lib/stddef.in.h b/macros/texinfo/texinfo/tp/Texinfo/XS/gnulib/lib/stddef.in.h
index 5aad1210df..d878b9d883 100644
--- a/macros/texinfo/texinfo/tp/Texinfo/XS/gnulib/lib/stddef.in.h
+++ b/macros/texinfo/texinfo/tp/Texinfo/XS/gnulib/lib/stddef.in.h
@@ -1,6 +1,6 @@
/* A substitute for POSIX 2008 <stddef.h>, for platforms that have issues.
- Copyright (C) 2009-2019 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
@@ -19,7 +19,7 @@
/*
* POSIX 2008 <stddef.h> for platforms that have issues.
- * <http://www.opengroup.org/susv3xbd/stddef.h.html>
+ * <https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/stddef.h.html>
*/
#if __GNUC__ >= 3
@@ -42,6 +42,13 @@
# define _GL_STDDEF_WINT_T
# endif
# @INCLUDE_NEXT@ @NEXT_STDDEF_H@
+ /* On TinyCC, make sure that the macros that indicate the special invocation
+ convention get undefined. */
+# undef __need_wchar_t
+# undef __need_size_t
+# undef __need_ptrdiff_t
+# undef __need_NULL
+# undef __need_wint_t
# endif
#else
@@ -49,6 +56,23 @@
# 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 __LP64__
+# 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@
@@ -83,20 +107,28 @@
/* Some platforms lack max_align_t. The check for _GCC_MAX_ALIGN_T is
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
+ 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).
+ 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 && !defined __clang__))
+# 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
+# if defined __GNUC__ || (__clang_major__ >= 4)
+# define _GL_STDDEF_ALIGNAS(type) \
+ __attribute__ ((__aligned__ (__alignof__ (type))))
+# else
+# define _GL_STDDEF_ALIGNAS(type) /* */
+# endif
typedef union
{
char *__p _GL_STDDEF_ALIGNAS (char *);
@@ -104,8 +136,9 @@ typedef union
long double __ld _GL_STDDEF_ALIGNAS (long double);
long int __i _GL_STDDEF_ALIGNAS (long int);
} rpl_max_align_t;
-# define max_align_t rpl_max_align_t
-# define GNULIB_defined_max_align_t 1
+# define max_align_t rpl_max_align_t
+# define GNULIB_defined_max_align_t 1
+# endif
# endif
#endif