fixincludes/system.h

   1 /* Get common system includes and various definitions and declarations based
   2    on autoconf macros.
   3    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004
   4    Free Software Foundation, Inc.
   5
   6 This file is part of libcpp (aka cpplib).
   7
   8 GCC is free software; you can redistribute it and/or modify it under
   9 the terms of the GNU General Public License as published by the Free
  10 Software Foundation; either version 2, or (at your option) any later
  11 version.
  12
  13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16 for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING.  If not, write to the Free
  20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  21 02111-1307, USA.  */
  22
  23
  24 #ifndef FIXINC_SYSTEM_H
  25 #define FIXINC_SYSTEM_H
  26
  27 /* We must include stdarg.h before stdio.h.  */
  28 #include <stdarg.h>
  29
  30 #ifdef HAVE_STDDEF_H
  31 # include <stddef.h>
  32 #endif
  33
  34 #include <stdio.h>
  35
  36 /* Define a generic NULL if one hasn't already been defined.  */
  37 #ifndef NULL
  38 #define NULL 0
  39 #endif
  40
  41 /* fixincludes is not a multi-threaded application and therefore we
  42    do not have to use the locking functions.  In fact, using the locking
  43    functions can cause the compiler to be significantly slower under
  44    I/O bound conditions (such as -g -O0 on very large source files).
  45
  46    HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio
  47    code is multi-thread safe by default.  If it is set to 0, then do
  48    not worry about using the _unlocked functions.
  49
  50    fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are
  51    extensions and need to be prototyped by hand (since we do not
  52    define _GNU_SOURCE).  */
  53
  54 #if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED
  55
  56 # ifdef HAVE_PUTC_UNLOCKED
  57 #  undef putc
  58 #  define putc(C, Stream) putc_unlocked (C, Stream)
  59 # endif
  60 # ifdef HAVE_PUTCHAR_UNLOCKED
  61 #  undef putchar
  62 #  define putchar(C) putchar_unlocked (C)
  63 # endif
  64 # ifdef HAVE_GETC_UNLOCKED
  65 #  undef getc
  66 #  define getc(Stream) getc_unlocked (Stream)
  67 # endif
  68 # ifdef HAVE_GETCHAR_UNLOCKED
  69 #  undef getchar
  70 #  define getchar() getchar_unlocked ()
  71 # endif
  72 # ifdef HAVE_FPUTC_UNLOCKED
  73 #  undef fputc
  74 #  define fputc(C, Stream) fputc_unlocked (C, Stream)
  75 # endif
  76
  77 # ifdef HAVE_CLEARERR_UNLOCKED
  78 #  undef clearerr
  79 #  define clearerr(Stream) clearerr_unlocked (Stream)
  80 #  if defined (HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED
  81 extern void clearerr_unlocked (FILE *);
  82 #  endif
  83 # endif
  84 # ifdef HAVE_FEOF_UNLOCKED
  85 #  undef feof
  86 #  define feof(Stream) feof_unlocked (Stream)
  87 #  if defined (HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED
  88 extern int feof_unlocked (FILE *);
  89 #  endif
  90 # endif
  91 # ifdef HAVE_FILENO_UNLOCKED
  92 #  undef fileno
  93 #  define fileno(Stream) fileno_unlocked (Stream)
  94 #  if defined (HAVE_DECL_FILENO_UNLOCKED) && !HAVE_DECL_FILENO_UNLOCKED
  95 extern int fileno_unlocked (FILE *);
  96 #  endif
  97 # endif
  98 # ifdef HAVE_FFLUSH_UNLOCKED
  99 #  undef fflush
 100 #  define fflush(Stream) fflush_unlocked (Stream)
 101 #  if defined (HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED
 102 extern int fflush_unlocked (FILE *);
 103 #  endif
 104 # endif
 105 # ifdef HAVE_FGETC_UNLOCKED
 106 #  undef fgetc
 107 #  define fgetc(Stream) fgetc_unlocked (Stream)
 108 #  if defined (HAVE_DECL_FGETC_UNLOCKED) && !HAVE_DECL_FGETC_UNLOCKED
 109 extern int fgetc_unlocked (FILE *);
 110 #  endif
 111 # endif
 112 # ifdef HAVE_FGETS_UNLOCKED
 113 #  undef fgets
 114 #  define fgets(S, n, Stream) fgets_unlocked (S, n, Stream)
 115 #  if defined (HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED
 116 extern char *fgets_unlocked (char *, int, FILE *);
 117 #  endif
 118 # endif
 119 # ifdef HAVE_FPUTS_UNLOCKED
 120 #  undef fputs
 121 #  define fputs(String, Stream) fputs_unlocked (String, Stream)
 122 #  if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED
 123 extern int fputs_unlocked (const char *, FILE *);
 124 #  endif
 125 # endif
 126 # ifdef HAVE_FERROR_UNLOCKED
 127 #  undef ferror
 128 #  define ferror(Stream) ferror_unlocked (Stream)
 129 #  if defined (HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED
 130 extern int ferror_unlocked (FILE *);
 131 #  endif
 132 # endif
 133 # ifdef HAVE_FREAD_UNLOCKED
 134 #  undef fread
 135 #  define fread(Ptr, Size, N, Stream) fread_unlocked (Ptr, Size, N, Stream)
 136 #  if defined (HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED
 137 extern size_t fread_unlocked (void *, size_t, size_t, FILE *);
 138 #  endif
 139 # endif
 140 # ifdef HAVE_FWRITE_UNLOCKED
 141 #  undef fwrite
 142 #  define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream)
 143 #  if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED
 144 extern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *);
 145 #  endif
 146 # endif
 147 # ifdef HAVE_FPRINTF_UNLOCKED
 148 #  undef fprintf
 149 /* We can't use a function-like macro here because we don't know if
 150    we have varargs macros.  */
 151 #  define fprintf fprintf_unlocked
 152 #  if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED
 153 extern int fprintf_unlocked (FILE *, const char *, ...);
 154 #  endif
 155 # endif
 156
 157 #endif
 158
 159 /* ??? Glibc's fwrite/fread_unlocked macros cause
 160    "warning: signed and unsigned type in conditional expression".  */
 161 #undef fread_unlocked
 162 #undef fwrite_unlocked
 163
 164 #include <sys/types.h>
 165 #include <errno.h>
 166
 167 #if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO
 168 extern int errno;
 169 #endif
 170
 171 /* Some of glibc's string inlines cause warnings.  Plus we'd rather
 172    rely on (and therefore test) GCC's string builtins.  */
 173 #define __NO_STRING_INLINES
 174
 175 #ifdef HAVE_STRING_H
 176 # include <string.h>
 177 #else
 178 # ifdef HAVE_STRINGS_H
 179 #  include <strings.h>
 180 # endif
 181 #endif
 182
 183 #ifdef HAVE_STDLIB_H
 184 # include <stdlib.h>
 185 #endif
 186
 187 #ifdef HAVE_UNISTD_H
 188 # include <unistd.h>
 189 #endif
 190
 191 #ifdef HAVE_FCNTL_H
 192 # include <fcntl.h>
 193 #else
 194 # ifdef HAVE_SYS_FILE_H
 195 #  include <sys/file.h>
 196 # endif
 197 #endif
 198
 199 /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1.  If they
 200    are defined to 0 then we must provide the relevant declaration
 201    here.  These checks will be in the undefined state while configure
 202    is running so be careful to test "defined (HAVE_DECL_*)".  */
 203
 204 #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
 205 extern void abort (void);
 206 #endif
 207
 208 #if HAVE_SYS_STAT_H
 209 # include <sys/stat.h>
 210 #endif
 211
 212 /* Test if something is a normal file.  */
 213 #ifndef S_ISREG
 214 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
 215 #endif
 216
 217 /* Filename handling macros.  */
 218 #include "filenames.h"
 219
 220 /* Get libiberty declarations.  */
 221 #include "libiberty.h"
 222 #include "safe-ctype.h"
 223
 224 #endif /* ! FIXINC_SYSTEM_H */