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1 /* This file is the configuration file for the GNU/Linux operating system,
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2 prior to version 1.1.56.
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3 Copyright (C) 1985, 1986, 1992, 1994 Free Software Foundation, Inc.
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4
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5 This file is part of GNU Emacs.
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6
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7 GNU Emacs is free software; you can redistribute it and/or modify
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8 it under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 2, or (at your option)
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10 any later version.
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11
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12 GNU Emacs is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: FSF 19.31 (called, ahem ... lignux.h in FSF). */
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23
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24 /* This file was put together by Michael K. Johnson and Rik Faith. */
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25
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26
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27 /*
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28 * Define symbols to identify the version of Unix this is.
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29 * Define all the symbols that apply correctly.
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30 */
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31
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32 /* #define UNIPLUS */
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33 /* #define USG5 */
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34 #define USG
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35 /* #define BSD */
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36 #define LINUX
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37
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38 /* SYSTEM_TYPE should indicate the kind of system you are using.
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39 It sets the Lisp variable system-type. */
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40
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41 #define SYSTEM_TYPE "linux" /* All the best software is free. */
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42
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43 /* Letter to use in finding device name of first pty,
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44 if system supports pty's. 'p' means it is /dev/ptyp0 */
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45
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46 #define FIRST_PTY_LETTER 'p'
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47
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48 /*
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49 * Define HAVE_PTYS if the system supports pty devices.
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50 */
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51
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52 #define HAVE_PTYS
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53
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54 /* define MAIL_USE_FLOCK if the mailer uses flock
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55 to interlock access to /usr/spool/mail/$USER.
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56 The alternative is that a lock file named
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57 /usr/spool/mail/$USER.lock. */
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58
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59 /* Both are used in Linux by different mail programs. I assume that most
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60 people are using newer mailers that have heard of flock. Change this
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61 if you need to. */
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62
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24
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63 /*#define MAIL_USE_FLOCK*/
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0
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64
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65 /* Here, on a separate page, add any special hacks needed
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66 to make Emacs work on this system. For example,
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67 you might define certain system call names that don't
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68 exist on your system, or that do different things on
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69 your system and must be used only through an encapsulation
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70 (Which you should place, by convention, in sysdep.c). */
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71
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72 /* On POSIX systems the system calls are interruptible by signals
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73 that the user program has elected to catch. Thus the system call
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74 must be retried in these cases. To handle this without massive
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75 changes in the source code, we remap the standard system call names
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76 to names for our own functions in sysdep.c that do the system call
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77 with retries. */
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78
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79 #define INTERRUPTIBLE_OPEN
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80 #define INTERRUPTIBLE_CLOSE
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81 #define INTERRUPTIBLE_IO
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82
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83 /* If you mount the proc file system somewhere other than /proc
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84 you will have to uncomment the following and make the proper
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85 changes */
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86
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87 /* #define LINUX_LDAV_FILE "/proc/loadavg" */
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88
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89 /* XEmacs change: The realpath() in linux's libc (4.6.27) sometimes
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90 * fails with ELOOP erroneously. For example, create a file
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91 * thirty-five or so directories deep and call realpath on it. You
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92 * get ELOOP even if no symlinks at all are involved.
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93 * -dkindred@cs.cmu.edu */
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94 #undef HAVE_REALPATH
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95
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96 /* This is needed for dispnew.c:update_frame */
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97
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98 #ifdef emacs
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99 #include <stdio.h> /* Get the definition of _IO_STDIO_H. */
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100 #if defined(_IO_STDIO_H) || defined(_STDIO_USES_IOSTREAM)
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101 /* new C libio names */
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102 #define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \
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103 ((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)
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104 #else /* !_IO_STDIO_H */
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105 /* old C++ iostream names */
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106 #define GNU_LIBRARY_PENDING_OUTPUT_COUNT(FILE) \
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107 ((FILE)->_pptr - (FILE)->_pbase)
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108 #endif /* !_IO_STDIO_H */
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109 #endif /* emacs */
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110
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111 /* Ask GCC where to find libgcc.a. */
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112 #define LIB_GCC `$(CC) $(C_SWITCH_X_SITE) -print-libgcc-file-name`
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113
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114 #ifndef __ELF__
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115 /* Linux has crt0.o in a non-standard place */
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116 #define START_FILES pre-crt0.o /usr/lib/crt0.o
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117 #else
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118 #define START_FILES pre-crt0.o /usr/lib/crt1.o /usr/lib/crti.o
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119 #endif
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120
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121 /* Check the version number of Linux--if it is at least 1.1.56,
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122 it is safe to use SIGIO. If we can't find version.h (could happen
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123 if the user did a `make distclean' or something similar on the
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124 kernel distribution) just assume that SIGIO works, because nearly
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125 everybody should be running Linux 1.2 or later by now. */
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126 #ifndef NOT_C_CODE
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127 #ifdef emacs
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128 #ifdef HAVE_LINUX_VERSION_H
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129 #include <linux/version.h>
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130
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131 #if LINUX_VERSION_CODE < 0x10138
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132 #define BROKEN_SIGIO
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133 #endif /* LINUX_VERSION_CODE < 0x10138 */
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134 #endif /* HAVE_LINUX_VERSION_H */
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135 #endif /* emacs */
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136 #endif /* NOT_C_CODE */
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137
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138 /* This is needed for sysdep.c */
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139
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140 #define NO_SIOCTL_H /* don't have sioctl.h */
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141
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142 #define HAVE_SYS_SIGLIST
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143 #define HAVE_WAIT_HEADER
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144
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145 #define POSIX /* affects getpagesize.h and systty.h */
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146
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147 /* Best not to include -lg, unless it is last on the command line */
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148 #define LIBS_DEBUG
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149 #ifndef HAVE_NCURSES /* XEmacs change */
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150 #define LIBS_TERMCAP -ltermcap -lcurses /* save some space with shared libs*/
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151 #endif
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152 #ifndef __ELF__
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153 #define LIB_STANDARD -lc /* avoid -lPW */
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154 #else
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155 #undef LIB_GCC
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156 #define LIB_GCC
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157 #define LIB_STANDARD -lgcc -lc -lgcc /usr/lib/crtn.o
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158 #endif
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159
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160 /* Don't use -g in test compiles in configure.
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161 This is so we will use the same shared libs for that linking
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162 that are used when linking temacs. */
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163 #ifdef THIS_IS_CONFIGURE
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164 #define C_DEBUG_SWITCH
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165 #endif
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166
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167 /* Let's try this out, just in case.
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168 Nah. Rik Faith <faith@cs.unc.edu> says it doesn't work well. */
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169 /* #define SIGNALS_VIA_CHARACTERS */
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170
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171 #ifdef TERM
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172 #define LIBS_SYSTEM -lclient
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173 #define C_SWITCH_SYSTEM -D_BSD_SOURCE -I/usr/src/term
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174 #else
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175 /* alane@wozzle.linet.org says that -lipc is not a separate library,
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176 since libc-4.4.1. So -lipc was deleted. */
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177 #define LIBS_SYSTEM
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178
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179 /* XFree86 is built with -DFUNCPROTO=11 -DNARROWPROTO so we better build
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180 XEmacs with these switches too so that X functions get called correctly.
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181 At least XawScrollbarSetThumb needs this. */
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182 #define C_SWITCH_SYSTEM -DFUNCPROTO=11 -DNARROWPROTO -D_BSD_SOURCE
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183 #endif
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184
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185 /* Paul Abrahams <abrahams@equinox.shaysnet.com> says this is needed. */
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186 #define LIB_MOTIF -lXm -lXpm
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187
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188 /* XEmacs change: configure doesn't find this because math.h aliases
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189 rint to __rint so that it's not found. */
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190 #define HAVE_RINT 1
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191
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192 #ifdef __ELF__
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193 #define UNEXEC unexelf.o
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194 #define UNEXEC_USE_MAP_PRIVATE
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195 #endif
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196
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197 #ifdef LINUX_QMAGIC
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198
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199 #define HAVE_TEXT_START
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200 #define UNEXEC unexsunos4.o
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201 #define N_PAGSIZ(x) PAGE_SIZE
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202
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203 #else /* not LINUX_QMAGIC */
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204
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205 #define A_TEXT_OFFSET(hdr) (N_MAGIC(hdr) == QMAGIC ? sizeof (struct exec) : 0)
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206 #define A_TEXT_SEEK(hdr) (N_TXTOFF(hdr) + A_TEXT_OFFSET(hdr))
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207 #define ADJUST_EXEC_HEADER \
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208 unexec_text_start = N_TXTADDR(ohdr) + A_TEXT_OFFSET(ohdr)
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209
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210 #endif /* not LINUX_QMAGIC */
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211
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212 #if 0
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213 /* In 19.23 and 19.24, configure sometimes fails to define these.
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214 It has to do with the fact that configure uses CFLAGS when linking
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215 while Makefile.in.in (erroneously) fails to do so when linking temacs. */
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216 #ifndef HAVE_GETTIMEOFDAY
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217 #define HAVE_GETTIMEOFDAY
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218 #endif
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219 #ifndef HAVE_MKDIR
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220 #define HAVE_MKDIR
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221 #endif
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222 #ifndef HAVE_RMDIR
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223 #define HAVE_RMDIR
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224 #endif
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225 #ifndef HAVE_XSCREENNUMBEROFSCREEN
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226 #define HAVE_XSCREENNUMBEROFSCREEN
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227 #endif
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228 #endif /* 0 */
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229
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230 /* This is to work around mysterious gcc failures in some system versions.
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231 It is unlikely that Emacs changes will work around this problem;
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232 therefore, this should remain permanently. */
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233 #ifndef HAVE_XRMSETDATABASE
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234 #define HAVE_XRMSETDATABASE
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235 #endif
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236
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237 /* XEmacs addition: */
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238 /* Linux defines these in <values.h>, but they can't be used in #if's
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239 Include values.h now so that we don't get complaints if it's included
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240 later. This loses with glibc-2 (libc-6) */
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241
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242 /* # include <features.h> */
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243 #if 0
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244 #if !(defined (__GLIBC__) && (__GLIBC__ >= 2))
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0
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245
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246 #include <values.h>
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247 #undef SHORTBITS
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248 #undef INTBITS
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249 #undef LONGBITS
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250
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30
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251 #endif
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252 #endif
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0
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253 /* The regex.o routines are a part of the GNU C-library used with Linux. */
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254 /* However, sometimes they disagree with the src/regex.h that comes with Emacs,
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255 and that can make trouble in etags.c because it gets the regex.h from Emacs
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256 and the function definitions in libc. So turn this off. */
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257 /* XEmacs: in any case, Mule uses different regex routines. */
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258 /* #define REGEXP_IN_LIBC */
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259
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260 /* XEmacs change: the standard linux libc includes regex routines in
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261 it. We have to use our own and have to avoid name conflicts. */
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262
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263 #define re_compile_pattern sys_re_compile_pattern
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264 #define re_search sys_re_search
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265 #define re_search_2 sys_re_search_2
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266 #define re_match_2 sys_re_match_2
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267 #define re_max_failures sys_re_max_failures
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268 #define re_set_syntax sys_re_set_syntax
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269 #define re_set_registers sys_re_set_registers
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270 #define re_compile_fastmap sys_re_compile_fastmap
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271 #define re_match sys_re_match
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272 #define regcomp sys_regcomp
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273 #define regexec sys_regexec
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274 #define regerror sys_regerror
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275 #define regfree sys_regfree
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276
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277 /* XEmacs: Damon Lipparelli says that he incorrectly gets this
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278 defined on his system */
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279 #undef GETTIMEOFDAY_ONE_ARGUMENT
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280
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281 /* Use BSD process groups, but use setpgid() instead of setpgrp() to
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282 actually set a process group. */
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283
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284 /* Formerly "BSD_PGRPS" */
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285
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286 #if 0 /* XEmacs (ben): I'm not convinced this is necessary and it has
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287 lots of possibility of fuckup. */
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288 #define SIGIO_REQUIRES_SEPARATE_PROCESS_GROUP
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289 #endif
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290 /* XEmacs: removed setpgrp() definition because we use setpgid() when
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291 it's available, and autodetect it. */
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44
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292
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293 /* glibc fuckage */
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294 #if defined __GLIBC__ && ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || __GLIBC__ > 2)
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295 # define GETPGRP_NEEDS_ARG
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296 #endif
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