src/s/iris3-6.h

   1 /* Definitions file for GNU Emacs running on Silicon Graphics system 3.6.
   2    Copyright (C) 1987 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
  30 /* SYSTEM_TYPE should indicate the kind of system you are using.
  31  It sets the Lisp variable system-type.  */
  32
  33 #define SYSTEM_TYPE "irix"
  34
  35 /* nomultiplejobs should be defined if your system's shell
  36  does not have "job control" (the ability to stop a program,
  37  run some other program, then continue the first one).  */
  38
  39 #define NOMULTIPLEJOBS
  40
  41 /* Default is to set interrupt_input to 0: don't do input buffering within Emacs */
  42
  43 /* #define INTERRUPT_INPUT */
  44
  45 /* Letter to use in finding device name of first pty,
  46   if system supports pty's.  'a' means it is /dev/ptya0  */
  47
  48 #define FIRST_PTY_LETTER 'a'
  49
  50 /*
  51  *      Define HAVE_TERMIO if the system provides sysV-style ioctls
  52  *      for terminal control.
  53  */
  54
  55 #define HAVE_TERMIO
  56
  57 /*
  58  *      Define HAVE_PTYS if the system supports pty devices.
  59  */
  60
  61 #define HAVE_PTYS
  62
  63 /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets.  */
  64
  65 #define HAVE_SOCKETS
  66
  67 /*
  68  *      Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
  69  *      The 4.2 opendir, etc., library functions.
  70  */
  71
  72 /* #define NONSYSTEM_DIR_LIBRARY */
  73
  74 /* Define this symbol if your system has the functions bcopy, etc. */
  75
  76 #define BSTRING
  77
  78 /* subprocesses should be defined if you want to
  79    have code for asynchronous subprocesses
  80    (as used in M-x compile and M-x shell).
  81    This is generally OS dependent, and not supported
  82    under most USG systems. */
  83
  84 #define subprocesses
  85
  86 /* If your system uses COFF (Common Object File Format) then define the
  87    preprocessor symbol "COFF". */
  88
  89 /* #define COFF */
  90
  91 /* define MAIL_USE_FLOCK if the mailer uses flock
  92    to interlock access to /usr/spool/mail/$USER.
  93    The alternative is that a lock file named
  94    /usr/spool/mail/$USER.lock.  */
  95
  96 #define MAIL_USE_FLOCK
  97
  98 /* Define CLASH_DETECTION if you want lock files to be written
  99    so that Emacs can tell instantly when you try to modify
 100    a file that someone else has modified in his Emacs.  */
 101
 102 /* #define CLASH_DETECTION */
 103
 104 /* We use the Berkeley (and usg5.2.2) interface to nlist.  */
 105
 106 #define NLIST_STRUCT
 107
 108 /* The file containing the kernel's symbol table is called /vmunix.  */
 109
 110 #define KERNEL_FILE "/vmunix"
 111
 112 /* The symbol in the kernel where the load average is found
 113    is named _avenrun.  */
 114
 115 #define LDAV_SYMBOL "_avenrun"
 116
 117 \f
 118 /* Special hacks needed to make Emacs run on this system.  */
 119
 120 /*
 121  *      Make the sigsetmask function go away.  Don't know what the
 122  *      ramifications of this are, but doesn't seem possible to
 123  *      emulate it properly anyway at this point.
 124  */
 125
 126 #define sigsetmask(mask)        /* Null expansion */
 127 #define sigblock(x) x
 128
 129 /* The IRIS defines SIGIO in signal.h, but doesn't implement it. */
 130 #undef SIGIO
 131
 132 #define LIBS_MACHINE -lbsd -ldbm -lPW
 133 #define C_SWITCH_MACHINE -I/usr/include/bsd
 134
 135 /* setjmp and longjmp can safely replace _setjmp and _longjmp,
 136    but they will run slower.  */
 137
 138 #define _setjmp setjmp
 139 #define _longjmp longjmp
 140
 141 /* On USG systems the system calls are interruptible by signals
 142  that the user program has elected to catch.  Thus the system call
 143  must be retried in these cases.  To handle this without massive
 144  changes in the source code, we remap the standard system call names
 145  to names for our own functions in sysdep.c that do the system call
 146  with retries. */
 147
 148 #define read sys_read
 149 #define open sys_open
 150 #define write sys_write
 151
 152 #define INTERRUPTIBLE_OPEN
 153 #define INTERRUPTIBLE_IO
 154
 155 /* On USG systems these have different names */
 156
 157 #define index strchr
 158 #define rindex strrchr
 159
 160 /* USG systems tend to put everything declared static
 161    into the initialized data area, which becomes pure after dumping Emacs.
 162    Foil this.  Emacs carefully avoids static vars inside functions.  */
 163
 164 /* #define static */
 165
 166 /* Compiler bug bites on many systems when default ADDR_CORRECT is used.  */
 167
 168 #define ADDR_CORRECT(x) (int)((char *)(x) - (char*)0)
 169
 170 /* some errno.h's don't actually allocate the variable itself */
 171
 172 #define NEED_ERRNO
 173
 174 /* This is how to get the device name of the tty end of a pty.  */
 175 #define PTY_TTY_NAME_SPRINTF \
 176             sprintf (ptyname, "/dev/ttyq%d", minor (stb.st_rdev));
 177
 178 /* The C library does have the getwd function.  */
 179 #define HAVE_GETWD