Feature #2014 ยป 0033-gnulib-common.m4-Update-to-serial-118.patch
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# gnulib-common.m4
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# serial 116
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# serial 118
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dnl Copyright (C) 2007-2026 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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# endif
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#endif
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/* _GL_ATTRIBUTE_COUNTED_BY (C) declares that the number of elements of
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the field is given by C, which must be another field in the same struct.
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The programmer is responsible for guaranteeing some invariants; see
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<https://gcc.gnu.org/onlinedocs/gcc/Common-Attributes.html> for details. */
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/* Applies to struct fields of type array or pointer (to data). */
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#ifndef _GL_ATTRIBUTE_COUNTED_BY
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/* This attributes is supported
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- for fields of array type: by gcc >= 16, clang >= 18,
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- for fields of pointer type: by gcc when <https://gcc.gnu.org/PR125072>
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will be fixed, clang >= 19. */
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# if defined __clang__ && __clang_major__ >= 19
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# define _GL_ATTRIBUTE_COUNTED_BY(c) __attribute__ ((__counted_by__ (c)))
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# else
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# define _GL_ATTRIBUTE_COUNTED_BY(c)
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# endif
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#endif
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/* _GL_ATTRIBUTE_DEALLOC (F, I) declares that the function returns pointers
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that can be freed by passing them as the Ith argument to the
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function F.
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])
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# AC_C_RESTRICT
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# This definition is copied from post-2.70 Autoconf and overrides the
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# AC_C_RESTRICT macro from autoconf 2.60..2.70.
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m4_version_prereq([2.70.1], [], [
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# This definition is copied from post-2.73 Autoconf and overrides the
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# AC_C_RESTRICT macro from autoconf 2.60..2.73.
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m4_version_prereq([2.73.1], [], [
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AC_DEFUN([AC_C_RESTRICT],
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[AC_CACHE_CHECK([for C/C++ restrict keyword], [ac_cv_c_restrict],
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[ac_cv_c_restrict=no
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AH_VERBATIM([restrict],
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[/* Define to the equivalent of the C99 'restrict' keyword, or to
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nothing if this is not supported. Do not define if restrict is
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supported only directly. */
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supported directly. */
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#if ! (defined __STDC_VERSION__ && 199901L <= __STDC_VERSION__)
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#undef restrict
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#endif
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/* Work around a bug in older versions of Sun C++, which did not
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#define __restrict__ or support _Restrict or __restrict__
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even though the corresponding Sun C compiler ended up with
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