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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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68 lines
2.6 KiB
68 lines
2.6 KiB
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/* getopt (basic, portable features) gnulib wrapper header.
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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_PFX_CORE_H
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#define _GETOPT_PFX_CORE_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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/* Standalone applications should #define __GETOPT_PREFIX to an
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identifier that prefixes the external functions and variables
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defined in getopt-core.h and getopt-ext.h. Systematically
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rename identifiers so that they do not collide with the system
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functions and variables. Renaming avoids problems with some
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compilers and linkers. */
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#ifdef __GETOPT_PREFIX
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# ifndef __GETOPT_ID
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# define __GETOPT_CONCAT(x, y) x ## y
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# define __GETOPT_XCONCAT(x, y) __GETOPT_CONCAT (x, y)
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# define __GETOPT_ID(y) __GETOPT_XCONCAT (__GETOPT_PREFIX, y)
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# endif
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# undef getopt
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# undef optarg
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# undef opterr
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# undef optind
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# undef optopt
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# define getopt __GETOPT_ID (getopt)
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# define optarg __GETOPT_ID (optarg)
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# define opterr __GETOPT_ID (opterr)
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# define optind __GETOPT_ID (optind)
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# define optopt __GETOPT_ID (optopt)
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/* Work around a problem on macOS, which declares getopt with a
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trailing __DARWIN_ALIAS(getopt) that would expand to something like
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__asm("_" "rpl_getopt" "$UNIX2003") were it not for the following
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hack to suppress the macOS declaration <https://bugs.gnu.org/40205>. */
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# ifdef __APPLE__
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# define _GETOPT
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# endif
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/* The system's getopt.h may have already included getopt-core.h to
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declare the unprefixed identifiers. Undef _GETOPT_CORE_H so that
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getopt-core.h declares them with prefixes. */
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# undef _GETOPT_CORE_H
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#endif
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#include <getopt-core.h>
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#endif /* _GETOPT_PFX_CORE_H */
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