include/stdc.h

   1 /* stdc.h -- macros to make source compile on both ANSI C and K&R C
   2    compilers. */
   3
   4 /* Copyright (C) 1993 Free Software Foundation, Inc.
   5
   6    This file is part of GNU Bash, the Bourne Again SHell.
   7
   8    Bash is free software: you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation, either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    Bash is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with Bash.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #if !defined (_STDC_H_)
  23 #define _STDC_H_
  24
  25 /* Adapted from BSD /usr/include/sys/cdefs.h. */
  26
  27 /* A function can be defined using prototypes and compile on both ANSI C
  28    and traditional C compilers with something like this:
  29         extern char *func __P((char *, char *, int)); */
  30
  31 #if !defined (__P)
  32 #  if defined (__STDC__) || defined (__GNUC__) || defined (__cplusplus) || defined (PROTOTYPES)
  33 #    define __P(protos) protos
  34 #  else
  35 #    define __P(protos) ()
  36 #  endif
  37 #endif
  38
  39 #if defined (HAVE_STRINGIZE)
  40 #  define __STRING(x) #x
  41 #else
  42 #  define __STRING(x) "x"
  43 #endif
  44
  45 #if !defined (__STDC__)
  46
  47 #if defined (__GNUC__)          /* gcc with -traditional */
  48 #  if !defined (signed)
  49 #    define signed __signed
  50 #  endif
  51 #  if !defined (volatile)
  52 #    define volatile __volatile
  53 #  endif
  54 #else /* !__GNUC__ */
  55 #  if !defined (inline)
  56 #    define inline
  57 #  endif
  58 #  if !defined (signed)
  59 #    define signed
  60 #  endif
  61 #  if !defined (volatile)
  62 #    define volatile
  63 #  endif
  64 #endif /* !__GNUC__ */
  65
  66 #endif /* !__STDC__ */
  67
  68 #ifndef __attribute__
  69 #  if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8)
  70 #    define __attribute__(x)
  71 #  endif
  72 #endif
  73
  74 /* For those situations when gcc handles inlining a particular function but
  75    other compilers complain. */
  76 #ifdef __GNUC__
  77 #  define INLINE inline
  78 #else
  79 #  define INLINE
  80 #endif
  81
  82 #if defined (PREFER_STDARG)
  83 #  define SH_VA_START(va, arg)  va_start(va, arg)
  84 #else
  85 #  define SH_VA_START(va, arg)  va_start(va)
  86 #endif
  87
  88 #endif /* !_STDC_H_ */