src/s/irix3-3.h

   1 /* Definitions file for GNU Emacs running on Silicon Graphics Irix system 3.3.
   2    Copyright (C) 1987,1990 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Emacs.
   5
   6 GNU Emacs 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 Emacs 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 Emacs; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20
  21 /*
  22  *      Define symbols to identify the version of Unix this is.
  23  *      Define all the symbols that apply correctly.
  24  */
  25
  26 #define USG
  27 #define USG5
  28 #define IRIS
  29 #ifndef IRIX
  30 #define IRIX
  31 #endif
  32
  33 /* SYSTEM_TYPE should indicate the kind of system you are using.
  34  It sets the Lisp variable system-type.  */
  35
  36 #define SYSTEM_TYPE "irix"
  37
  38 /* nomultiplejobs should be defined if your system's shell
  39  does not have "job control" (the ability to stop a program,
  40  run some other program, then continue the first one).  */
  41
  42 /* #define NOMULTIPLEJOBS */
  43
  44 /* Default is to set interrupt_input to 0: don't do input buffering within Emacs */
  45
  46 /* #define INTERRUPT_INPUT */
  47
  48 /* Letter to use in finding device name of first pty,
  49   if system supports pty's.  'a' means it is /dev/ptya0  */
  50
  51 #define FIRST_PTY_LETTER 'a'
  52
  53 /*
  54  *      Define HAVE_TERMIO if the system provides sysV-style ioctls
  55  *      for terminal control.
  56  */
  57
  58 #define HAVE_TERMIO
  59
  60 /*
  61  *      Define HAVE_TIMEVAL if the system supports the BSD style clock values.
  62  *      Look in <sys/time.h> for a timeval structure.
  63  */
  64
  65 #define HAVE_TIMEVAL
  66
  67 /* `utime' system call doesn't understand timevals.  */
  68
  69 #define IRIS_UTIME
  70
  71 /*
  72  *      Define HAVE_SELECT if the system supports the `select' system call.
  73  */
  74
  75 #define HAVE_SELECT
  76
  77 /*
  78  *      Define HAVE_PTYS if the system supports pty devices.
  79  */
  80
  81 #define HAVE_PTYS
  82
  83 /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets.  */
  84
  85 #define HAVE_SOCKETS
  86
  87 /*
  88  *      Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
  89  *      The 4.2 opendir, etc., library functions.
  90  */
  91
  92 /* #define NONSYSTEM_DIR_LIBRARY */
  93
  94 /* Define this symbol if your system has the functions bcopy, etc. */
  95
  96 #define BSTRING
  97
  98 /* subprocesses should be defined if you want to
  99    have code for asynchronous subprocesses
 100    (as used in M-x compile and M-x shell).
 101    This is generally OS dependent, and not supported
 102    under most USG systems. */
 103
 104 #define subprocesses
 105
 106 /* If your system uses COFF (Common Object File Format) then define the
 107    preprocessor symbol "COFF". */
 108
 109 /* #define COFF */
 110
 111 /* define MAIL_USE_FLOCK if the mailer uses flock
 112    to interlock access to /usr/spool/mail/$USER.
 113    The alternative is that a lock file named
 114    /usr/spool/mail/$USER.lock.  */
 115
 116 /* #define MAIL_USE_FLOCK */
 117
 118 /* Define CLASH_DETECTION if you want lock files to be written
 119    so that Emacs can tell instantly when you try to modify
 120    a file that someone else has modified in his Emacs.  */
 121
 122 /* #define CLASH_DETECTION */
 123
 124 /* We use the Berkeley (and usg5.2.2) interface to nlist.  */
 125
 126 #define NLIST_STRUCT
 127
 128 /* The file containing the kernel's symbol table is called /unix.  */
 129
 130 #define KERNEL_FILE "/unix"
 131
 132 /* The symbol in the kernel where the load average is found
 133    is named _avenrun.  */
 134
 135 #define LDAV_SYMBOL "avenrun"
 136
 137 \f
 138 /* setjmp and longjmp can safely replace _setjmp and _longjmp,
 139    but they will run slower.  */
 140
 141 #define _setjmp setjmp
 142 #define _longjmp longjmp
 143
 144 /* On USG systems the system calls are interruptible by signals
 145  that the user program has elected to catch.  Thus the system call
 146  must be retried in these cases.  To handle this without massive
 147  changes in the source code, we remap the standard system call names
 148  to names for our own functions in sysdep.c that do the system call
 149  with retries. */
 150
 151 #define read sys_read
 152 #define open sys_open
 153 #define write sys_write
 154
 155 #define INTERRUPTIBLE_OPEN
 156 #define INTERRUPTIBLE_IO
 157
 158 /* On USG systems these have different names */
 159
 160 #define index strchr
 161 #define rindex strrchr
 162
 163 /* USG systems tend to put everything declared static
 164    into the initialized data area, which becomes pure after dumping Emacs.
 165    Foil this.  Emacs carefully avoids static vars inside functions.  */
 166
 167 /* #define static */
 168
 169 /* This is how to get the device name of the tty end of a pty.  */
 170 #define PTY_TTY_NAME_SPRINTF \
 171             sprintf (ptyname, "/dev/ttyq%d", minor (stb.st_rdev));
 172
 173
 174 /* getwd is defined.  */
 175
 176 #define HAVE_GETWD
 177
 178 #define HAVE_SYSVIPC
 179
 180 /* sioctl.h should be included where appropriate.  */
 181
 182 #define NEED_SIOCTL
 183
 184 /* This affects child_setup.  */
 185
 186 #define SETPGRP_RELEASES_CTTY