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1 /* stdc.h -- macros to make source compile on both ANSI C and K&R C compilers. */
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2
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3 /* Copyright (C) 1993-2009 Free Software Foundation, Inc.
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4
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5 This file is part of the GNU Readline Library (Readline), a library
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6 for reading lines of text with interactive input and history editing.
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7
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8 Readline is free software: you can redistribute it and/or modify
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9 it under the terms of the GNU General Public License as published by
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10 the Free Software Foundation, either version 3 of the License, or
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11 (at your option) any later version.
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12
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13 Readline is distributed in the hope that it will be useful,
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14 but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 GNU General Public License for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with Readline. If not, see <http://www.gnu.org/licenses/>.
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20 */
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21
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22 #if !defined (_RL_STDC_H_)
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23 #define _RL_STDC_H_
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24
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25 /* Adapted from BSD /usr/include/sys/cdefs.h. */
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26
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27 /* A function can be defined using prototypes and compile on both ANSI C
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28 and traditional C compilers with something like this:
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29 extern char *func PARAMS((char *, char *, int)); */
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30
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31 #if !defined (PARAMS)
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32 # if defined (__STDC__) || defined (__GNUC__) || defined (__cplusplus)
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33 # define PARAMS(protos) protos
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34 # else
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35 # define PARAMS(protos) ()
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36 # endif
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37 #endif
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38
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39 #ifndef __attribute__
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40 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8)
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41 # define __attribute__(x)
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42 # endif
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43 #endif
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44
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45 /* Moved from config.h.in because readline.h:rl_message depends on these
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46 defines. */
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47 #if defined (__STDC__) && defined (HAVE_STDARG_H)
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48 # define PREFER_STDARG
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49 # define USE_VARARGS
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50 #else
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51 # if defined (HAVE_VARARGS_H)
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52 # define PREFER_VARARGS
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53 # define USE_VARARGS
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54 # endif
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55 #endif
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56
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57 #endif /* !_RL_STDC_H_ */
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