config-bot.h

   1 /* config-bot.h */
   2 /* modify settings or make new ones based on what autoconf tells us. */
   3
   4 /* Copyright (C) 1989-2007 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 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    Bash 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 along
  19    with Bash; see the file COPYING.  If not, write to the Free Software
  20    Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
  21
  22 /*********************************************************/
  23 /* Modify or set defines based on the configure results. */
  24 /*********************************************************/
  25
  26 #if !defined (HAVE_VPRINTF) && defined (HAVE_DOPRNT)
  27 #  define USE_VFPRINTF_EMULATION
  28 #  define HAVE_VPRINTF
  29 #endif
  30
  31 #if defined (HAVE_SYS_RESOURCE_H) && defined (HAVE_GETRLIMIT)
  32 #  define HAVE_RESOURCE
  33 #endif
  34
  35 #if !defined (GETPGRP_VOID)
  36 #  define HAVE_BSD_PGRP
  37 #endif
  38
  39 /* Try this without testing __STDC__ for the time being. */
  40 #if defined (HAVE_STDARG_H)
  41 #  define PREFER_STDARG
  42 #  define USE_VARARGS
  43 #else
  44 #  if defined (HAVE_VARARGS_H)
  45 #    define PREFER_VARARGS
  46 #    define USE_VARARGS
  47 #  endif
  48 #endif
  49
  50 #if defined (HAVE_SYS_SOCKET_H) && defined (HAVE_GETPEERNAME) && defined (HAVE_NETINET_IN_H)
  51 #  define HAVE_NETWORK
  52 #endif
  53
  54 #if defined (HAVE_REGEX_H) && defined (HAVE_REGCOMP) && defined (HAVE_REGEXEC)
  55 #  define HAVE_POSIX_REGEXP
  56 #endif
  57
  58 /* backwards compatibility between different autoconf versions */
  59 #if HAVE_DECL_SYS_SIGLIST && !defined (SYS_SIGLIST_DECLARED)
  60 #  define SYS_SIGLIST_DECLARED
  61 #endif
  62
  63 /***********************************************************************/
  64 /* Unset defines based on what configure reports as missing or broken. */
  65 /***********************************************************************/
  66
  67 /* Ultrix botches type-ahead when switching from canonical to
  68    non-canonical mode, at least through version 4.3 */
  69 #if !defined (HAVE_TERMIOS_H) || !defined (HAVE_TCGETATTR) || defined (ultrix)
  70 #  define TERMIOS_MISSING
  71 #endif
  72
  73 /* If we have a getcwd(3), but one that does not dynamically allocate memory,
  74    #undef HAVE_GETCWD so the replacement in getcwd.c will be built.  We do
  75    not do this on Solaris, because their implementation of loopback mounts
  76    breaks the traditional file system assumptions that getcwd uses. */
  77 #if defined (HAVE_GETCWD) && defined (GETCWD_BROKEN) && !defined (SOLARIS)
  78 #  undef HAVE_GETCWD
  79 #endif
  80
  81 #if !defined (HAVE_DEV_FD) && defined (NAMED_PIPES_MISSING)
  82 #  undef PROCESS_SUBSTITUTION
  83 #endif
  84
  85 #if defined (JOB_CONTROL_MISSING)
  86 #  undef JOB_CONTROL
  87 #endif
  88
  89 #if defined (STRCOLL_BROKEN)
  90 #  undef HAVE_STRCOLL
  91 #endif
  92
  93 #if !defined (HAVE_POSIX_REGEXP)
  94 #  undef COND_REGEXP
  95 #endif
  96
  97 /* If the shell is called by this name, it will become restricted. */
  98 #if defined (RESTRICTED_SHELL)
  99 #  define RESTRICTED_SHELL_NAME "rbash"
 100 #endif
 101
 102 /***********************************************************/
 103 /* Make sure feature defines have necessary prerequisites. */
 104 /***********************************************************/
 105
 106 /* BANG_HISTORY requires HISTORY. */
 107 #if defined (BANG_HISTORY) && !defined (HISTORY)
 108 #  define HISTORY
 109 #endif /* BANG_HISTORY && !HISTORY */
 110
 111 #if defined (READLINE) && !defined (HISTORY)
 112 #  define HISTORY
 113 #endif
 114
 115 #if defined (PROGRAMMABLE_COMPLETION) && !defined (READLINE)
 116 #  undef PROGRAMMABLE_COMPLETION
 117 #endif
 118
 119 #if !defined (V9_ECHO)
 120 #  undef DEFAULT_ECHO_TO_XPG
 121 #endif
 122
 123 #if !defined (PROMPT_STRING_DECODE)
 124 #  undef PPROMPT
 125 #  define PPROMPT "$ "
 126 #endif
 127
 128 /************************************************/
 129 /* check multibyte capability for I18N code     */
 130 /************************************************/
 131
 132 /* For platforms which support the ISO C amendement 1 functionality we
 133    support user defined character classes.  */
 134 /* Solaris 2.5 has a bug: <wchar.h> must be included before <wctype.h>.  */
 135 #if defined (HAVE_WCTYPE_H) && defined (HAVE_WCHAR_H) && defined (HAVE_LOCALE_H)
 136 #  include <wchar.h>
 137 #  include <wctype.h>
 138 #  if defined (HAVE_ISWCTYPE) && \
 139       defined (HAVE_ISWLOWER) && \
 140       defined (HAVE_ISWUPPER) && \
 141       defined (HAVE_MBSRTOWCS) && \
 142       defined (HAVE_MBRTOWC) && \
 143       defined (HAVE_MBRLEN) && \
 144       defined (HAVE_TOWLOWER) && \
 145       defined (HAVE_TOWUPPER) && \
 146       defined (HAVE_WCHAR_T) && \
 147       defined (HAVE_WCTYPE_T) && \
 148       defined (HAVE_WINT_T) && \
 149       defined (HAVE_WCWIDTH) && \
 150       defined (HAVE_WCTYPE)
 151      /* system is supposed to support XPG5 */
 152 #    define HANDLE_MULTIBYTE      1
 153 #  endif
 154 #endif
 155
 156 /* If we don't want multibyte chars even on a system that supports them, let
 157    the configuring user turn multibyte support off. */
 158 #if defined (NO_MULTIBYTE_SUPPORT)
 159 #  undef HANDLE_MULTIBYTE
 160 #endif
 161
 162 /* Some systems, like BeOS, have multibyte encodings but lack mbstate_t.  */
 163 #if HANDLE_MULTIBYTE && !defined (HAVE_MBSTATE_T)
 164 #  define wcsrtombs(dest, src, len, ps) (wcsrtombs) (dest, src, len, 0)
 165 #  define mbsrtowcs(dest, src, len, ps) (mbsrtowcs) (dest, src, len, 0)
 166 #  define wcrtomb(s, wc, ps) (wcrtomb) (s, wc, 0)
 167 #  define mbrtowc(pwc, s, n, ps) (mbrtowc) (pwc, s, n, 0)
 168 #  define mbrlen(s, n, ps) (mbrlen) (s, n, 0)
 169 #  define mbstate_t int
 170 #endif
 171
 172 /* Make sure MB_LEN_MAX is at least 16 (some systems define
 173    MB_LEN_MAX as 1) */
 174 #ifdef HANDLE_MULTIBYTE
 175 #  include <limits.h>
 176 #  if defined(MB_LEN_MAX) && (MB_LEN_MAX < 16)
 177 #    undef MB_LEN_MAX
 178 #  endif
 179 #  if !defined (MB_LEN_MAX)
 180 #    define MB_LEN_MAX 16
 181 #  endif
 182 #endif
 183
 184 /************************************************/
 185 /* end of multibyte capability checks for I18N  */
 186 /************************************************/
 187
 188 /******************************************************************/
 189 /* Placeholder for builders to #undef any unwanted features from  */
 190 /* config-top.h or created by configure (such as the default mail */
 191 /* file for mail checking).                                       */
 192 /******************************************************************/
 193
 194 /* If you don't want bash to provide a default mail file to check. */
 195 /* #undef DEFAULT_MAIL_DIRECTORY */