| 1 | /* getopt-on-non-glibc compatibility macros.
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| 2 | Copyright (C) 1989-2021 Free Software Foundation, Inc.
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| 3 | This file is part of gnulib.
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| 4 | Unlike most of the getopt implementation, it is NOT shared
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| 5 | with the GNU C Library.
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| 6 |
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| 7 | This file is free software: you can redistribute it and/or modify
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| 8 | it under the terms of the GNU Lesser General Public License as
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| 9 | published by the Free Software Foundation; either version 2.1 of the
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| 10 | License, or (at your option) any later version.
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| 11 |
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| 12 | This file is distributed in the hope that it will be useful,
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| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | GNU Lesser General Public License for more details.
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| 16 |
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| 17 | You should have received a copy of the GNU Lesser General Public License
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| 18 | along with this program. If not, see <https://www.gnu.org/licenses/>. */
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| 19 |
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| 20 | #ifndef _GETOPT_CDEFS_H
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| 21 | #define _GETOPT_CDEFS_H 1
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| 22 |
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| 23 | /* This header should not be used directly; include getopt.h or
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| 24 | unistd.h instead. It does not have a protective #error, because
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| 25 | the guard macro for getopt.h in gnulib is not fixed. */
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| 26 |
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| 27 | /* getopt-core.h and getopt-ext.h are shared with GNU libc, and expect
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| 28 | a number of the internal macros supplied to GNU libc's headers by
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| 29 | sys/cdefs.h. Provide fallback definitions for all of them. */
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| 30 | #if @HAVE_SYS_CDEFS_H@
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| 31 | # include <sys/cdefs.h>
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| 32 | #endif
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| 33 |
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| 34 | #ifndef __BEGIN_DECLS
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| 35 | # ifdef __cplusplus
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| 36 | # define __BEGIN_DECLS extern "C" {
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| 37 | # else
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| 38 | # define __BEGIN_DECLS /* nothing */
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| 39 | # endif
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| 40 | #endif
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| 41 | #ifndef __END_DECLS
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| 42 | # ifdef __cplusplus
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| 43 | # define __END_DECLS }
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| 44 | # else
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| 45 | # define __END_DECLS /* nothing */
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| 46 | # endif
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| 47 | #endif
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| 48 |
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| 49 | #ifndef __GNUC_PREREQ
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| 50 | # if defined __GNUC__ && defined __GNUC_VERSION__
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| 51 | # define __GNUC_PREREQ(maj, min) \
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| 52 | ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
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| 53 | # else
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| 54 | # define __GNUC_PREREQ(maj, min) 0
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| 55 | # endif
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| 56 | #endif
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| 57 |
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| 58 | #ifndef __THROW
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| 59 | # if defined __cplusplus && (__GNUC_PREREQ (2,8) || __clang_major__ >= 4)
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| 60 | # define __THROW throw ()
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| 61 | # else
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| 62 | # define __THROW
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| 63 | # endif
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| 64 | #endif
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| 65 |
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| 66 | #endif /* _GETOPT_CDEFS_H */
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