gcc/gansidecl.h

   1 /* ANSI and traditional C compatibility macros.
   2    Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
   3
   4 This file is part of GNU CC.
   5
   6 GNU CC is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU CC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU CC; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21 /* This file mimics some of the support provided by include/ansidecl.h
  22    in binutils and gdb releases.
  23    ??? Over time the two should be merged into one.  */
  24
  25 #ifndef __GANSIDECL_H__
  26 #define __GANSIDECL_H__
  27
  28 #include "ansidecl.h"
  29
  30 /* Undef ansidecl.h's "obsolete" version. */
  31 #undef PROTO
  32 /* These macros are deprecated, use ansidecl.h's PARAMS style instead. */
  33 #define PROTO(ARGS) PARAMS(ARGS)
  34 #define VPROTO(ARGS) VPARAMS(ARGS)
  35 #define PVPROTO(ARGS) PARAMS(ARGS)
  36
  37 /* Autoconf will possibly define the `inline' or `const' keywords as
  38    macros, however this is only valid for the stage1 compiler.  If we
  39    detect a modern version of gcc, unconditionally reset the values.
  40    This makes sure the right thing happens in stage2 and later.  We
  41    need to do this very early; i.e. before any systems header files or
  42    gcc header files in case they use these keywords.  Otherwise
  43    conflicts might occur. */
  44 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
  45 # undef const
  46 # undef inline
  47 # define inline __inline__  /* Modern gcc can use `__inline__' freely. */
  48 #endif /* GCC >= 2.7 */
  49
  50 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
  51 # define __attribute__(x)
  52 #endif
  53
  54 #ifndef ATTRIBUTE_UNUSED_LABEL
  55 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 93)
  56 #  define ATTRIBUTE_UNUSED_LABEL
  57 # else
  58 #  define ATTRIBUTE_UNUSED_LABEL ATTRIBUTE_UNUSED
  59 # endif /* GNUC < 2.93 */
  60 #endif /* ATTRIBUTE_UNUSED_LABEL */
  61
  62 #ifndef ATTRIBUTE_UNUSED
  63 #define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
  64 #endif /* ATTRIBUTE_UNUSED */
  65
  66 #ifndef ATTRIBUTE_NORETURN
  67 #define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
  68 #endif /* ATTRIBUTE_NORETURN */
  69
  70 #ifndef ATTRIBUTE_PRINTF
  71 #define ATTRIBUTE_PRINTF(m, n) __attribute__ ((format (__printf__, m, n)))
  72 #define ATTRIBUTE_PRINTF_1 ATTRIBUTE_PRINTF(1, 2)
  73 #define ATTRIBUTE_PRINTF_2 ATTRIBUTE_PRINTF(2, 3)
  74 #define ATTRIBUTE_PRINTF_3 ATTRIBUTE_PRINTF(3, 4)
  75 #define ATTRIBUTE_PRINTF_4 ATTRIBUTE_PRINTF(4, 5)
  76 #define ATTRIBUTE_PRINTF_5 ATTRIBUTE_PRINTF(5, 6)
  77 #endif /* ATTRIBUTE_PRINTF */
  78
  79 #define GENERIC_PTR PTR
  80
  81 #ifndef NULL_PTR
  82 #define NULL_PTR ((PTR) 0)
  83 #endif
  84
  85 #endif /* __GANSIDECL_H__ */