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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