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XZ Utils is free general-purpose data compression software with a high compression ratio
https://tukaani.org/xz/
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72 lines
2.2 KiB
72 lines
2.2 KiB
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/* getopt-on-non-glibc compatibility macros.
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Copyright (C) 1989-2023 Free Software Foundation, Inc.
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This file is part of gnulib.
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Unlike most of the getopt implementation, it is NOT shared
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with the GNU C Library.
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This file is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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This file is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#ifndef _GETOPT_CDEFS_H
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#define _GETOPT_CDEFS_H 1
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/* This header should not be used directly; include getopt.h or
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unistd.h instead. It does not have a protective #error, because
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the guard macro for getopt.h in gnulib is not fixed. */
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/* getopt-core.h and getopt-ext.h are shared with GNU libc, and expect
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a number of the internal macros supplied to GNU libc's headers by
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sys/cdefs.h. Provide fallback definitions for all of them. */
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#ifdef HAVE_SYS_CDEFS_H
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# include <sys/cdefs.h>
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#endif
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#ifndef __BEGIN_DECLS
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# ifdef __cplusplus
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# define __BEGIN_DECLS extern "C" {
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# else
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# define __BEGIN_DECLS /* nothing */
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# endif
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#endif
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#ifndef __END_DECLS
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# ifdef __cplusplus
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# define __END_DECLS }
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# else
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# define __END_DECLS /* nothing */
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# endif
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#endif
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#ifndef __GNUC_PREREQ
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# if defined __GNUC__ && defined __GNUC_VERSION__
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# define __GNUC_PREREQ(maj, min) \
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((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
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# else
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# define __GNUC_PREREQ(maj, min) 0
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# endif
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#endif
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#ifndef __THROW
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# if defined __cplusplus && (__GNUC_PREREQ (2,8) || __clang_major__ >= 4)
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# if __cplusplus >= 201103L
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# define __THROW noexcept (true)
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# else
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# define __THROW throw ()
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# endif
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# else
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# define __THROW
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# endif
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#endif
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#endif /* _GETOPT_CDEFS_H */
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