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Feature #681 » 0022-gnulib-common.m4-Update-to-serial-95.patch

Marko Lindqvist, 05/31/2024 08:59 AM

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dependencies/m4/gnulib-common.m4
# gnulib-common.m4
# serial 93
# serial 95
dnl Copyright (C) 2007-2024 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
......
# define _GL_ATTR_nothrow _GL_GNUC_PREREQ (3, 3)
# define _GL_ATTR_packed _GL_GNUC_PREREQ (2, 7)
# define _GL_ATTR_pure _GL_GNUC_PREREQ (2, 96)
# define _GL_ATTR_reproducible 0 /* not yet supported, as of GCC 14 */
# define _GL_ATTR_returns_nonnull _GL_GNUC_PREREQ (4, 9)
# define _GL_ATTR_sentinel _GL_GNUC_PREREQ (4, 0)
# define _GL_ATTR_unsequenced 0 /* not yet supported, as of GCC 14 */
# define _GL_ATTR_unused _GL_GNUC_PREREQ (2, 7)
# define _GL_ATTR_warn_unused_result _GL_GNUC_PREREQ (3, 4)
# endif
......
_GL_ATTRIBUTE_ALLOC_SIZE ((M, N)) declares that the Mth argument multiplied
by the Nth argument of the function is the size of the returned memory block.
*/
/* Applies to: function, pointer to function, function types. */
/* Applies to: functions, pointer to functions, function types. */
#ifndef _GL_ATTRIBUTE_ALLOC_SIZE
# if _GL_HAS_ATTRIBUTE (alloc_size)
# define _GL_ATTRIBUTE_ALLOC_SIZE(args) __attribute__ ((__alloc_size__ args))
......
/* _GL_ATTRIBUTE_ALWAYS_INLINE tells that the compiler should always inline the
function and report an error if it cannot do so. */
/* Applies to: function. */
/* Applies to: functions. */
#ifndef _GL_ATTRIBUTE_ALWAYS_INLINE
# if _GL_HAS_ATTRIBUTE (always_inline)
# define _GL_ATTRIBUTE_ALWAYS_INLINE __attribute__ ((__always_inline__))
......
/* _GL_ATTRIBUTE_ARTIFICIAL declares that the function is not important to show
in stack traces when debugging. The compiler should omit the function from
stack traces. */
/* Applies to: function. */
/* Applies to: functions. */
#ifndef _GL_ATTRIBUTE_ARTIFICIAL
# if _GL_HAS_ATTRIBUTE (artificial)
# define _GL_ATTRIBUTE_ARTIFICIAL __attribute__ ((__artificial__))
......
# endif
#endif
/* _GL_ATTRIBUTE_CONST declares that it is OK for a compiler to omit duplicate
calls to the function with the same arguments.
This attribute is safe for a function that neither depends on nor affects
observable state, and always returns exactly once - e.g., does not loop
forever, and does not call longjmp.
(This attribute is stricter than _GL_ATTRIBUTE_PURE.) */
/* _GL_ATTRIBUTE_CONST declares:
It is OK for a compiler to move calls to the function and to omit
calls to the function if another call has the same arguments or the
result is not used.
This attribute is safe for a function that neither depends on
nor affects state, and always returns exactly once -
e.g., does not raise an exception, call longjmp, or loop forever.
(This attribute is stricter than _GL_ATTRIBUTE_PURE because the
function cannot observe state. It is stricter than
_GL_ATTRIBUTE_UNSEQUENCED because the function must return exactly
once and cannot depend on state addressed by its arguments.) */
/* Applies to: functions. */
#ifndef _GL_ATTRIBUTE_CONST
# if _GL_HAS_ATTRIBUTE (const)
# define _GL_ATTRIBUTE_CONST __attribute__ ((__const__))
# else
# define _GL_ATTRIBUTE_CONST
# define _GL_ATTRIBUTE_CONST _GL_ATTRIBUTE_UNSEQUENCED
# endif
#endif
......
minimizing the memory required. */
/* Applies to: struct members, struct, union,
in C++ also: class. */
#ifndef _GL_ATTRIBUTE_PACKED
/* Oracle Studio 12.6 miscompiles code with __attribute__ ((__packed__)) despite
__has_attribute OK. */
#ifndef _GL_ATTRIBUTE_PACKED
# if _GL_HAS_ATTRIBUTE (packed) && !defined __SUNPRO_C
# define _GL_ATTRIBUTE_PACKED __attribute__ ((__packed__))
# else
......
# endif
#endif
/* _GL_ATTRIBUTE_PURE declares that It is OK for a compiler to omit duplicate
calls to the function with the same arguments if observable state is not
changed between calls.
This attribute is safe for a function that does not affect
observable state, and always returns exactly once.
(This attribute is looser than _GL_ATTRIBUTE_CONST.) */
/* _GL_ATTRIBUTE_PURE declares:
It is OK for a compiler to move calls to the function and to omit
calls to the function if another call has the same arguments or the
result is not used, and if observable state is the same.
This attribute is safe for a function that does not affect observable state
and always returns exactly once.
(This attribute is looser than _GL_ATTRIBUTE_CONST because the function
can depend on observable state. It is stricter than
_GL_ATTRIBUTE_REPRODUCIBLE because the function must return exactly
once and cannot affect state addressed by its arguments.) */
/* Applies to: functions. */
#ifndef _GL_ATTRIBUTE_PURE
# if _GL_HAS_ATTRIBUTE (pure)
# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
# else
# define _GL_ATTRIBUTE_PURE
# define _GL_ATTRIBUTE_PURE _GL_ATTRIBUTE_REPRODUCIBLE
# endif
#endif
/* _GL_ATTRIBUTE_REPRODUCIBLE declares:
It is OK for a compiler to move calls to the function and to omit duplicate
calls to the function with the same arguments, so long as the state
addressed by its arguments is the same and is updated in time for
the rest of the program.
This attribute is safe for a function that is effectless and idempotent; see
ISO C 23 § 6.7.12.7 for a definition of these terms.
(This attribute is looser than _GL_ATTRIBUTE_UNSEQUENCED because
the function need not be stateless and idempotent. It is looser
than _GL_ATTRIBUTE_PURE because the function need not return
exactly once and can affect state addressed by its arguments.)
See also <https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2956.htm> and
<https://stackoverflow.com/questions/76847905/>. */
/* Applies to: functions, pointer to functions, function types. */
#ifndef _GL_ATTRIBUTE_REPRODUCIBLE
/* This may be revisited when gcc and clang support [[reproducible]] or possibly
__attribute__ ((__reproducible__)). */
# ifndef _GL_BRACKET_BEFORE_ATTRIBUTE
# if _GL_HAS_ATTRIBUTE (reproducible)
# define _GL_ATTRIBUTE_REPRODUCIBLE [[reproducible]]
# endif
# endif
# ifndef _GL_ATTRIBUTE_REPRODUCIBLE
# define _GL_ATTRIBUTE_REPRODUCIBLE
# endif
#endif
......
# endif
#endif
/* _GL_ATTRIBUTE_UNSEQUENCED declares:
It is OK for a compiler to move calls to the function and to omit duplicate
calls to the function with the same arguments, so long as the state
addressed by its arguments is the same.
This attribute is safe for a function that is effectless, idempotent,
stateless, and independent; see ISO C 23 § 6.7.12.7 for a definition of
these terms.
(This attribute is stricter than _GL_ATTRIBUTE_REPRODUCIBLE because
the function must be stateless and independent. It is looser than
_GL_ATTRIBUTE_CONST because the function need not return exactly
once and can depend on state addressed by its arguments.)
See also <https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2956.htm> and
<https://stackoverflow.com/questions/76847905/>. */
/* Applies to: functions, pointer to functions, function types. */
#ifndef _GL_ATTRIBUTE_UNSEQUENCED
/* This may be revisited when gcc and clang support [[unsequenced]] or possibly
__attribute__ ((__unsequenced__)). */
# ifndef _GL_BRACKET_BEFORE_ATTRIBUTE
# if _GL_HAS_ATTRIBUTE (unsequenced)
# define _GL_ATTRIBUTE_UNSEQUENCED [[unsequenced]]
# endif
# endif
# ifndef _GL_ATTRIBUTE_UNSEQUENCED
# define _GL_ATTRIBUTE_UNSEQUENCED
# endif
#endif
/* A helper macro. Don't use it directly. */
#ifndef _GL_ATTRIBUTE_UNUSED
# if _GL_HAS_ATTRIBUTE (unused)
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