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 1, 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_TIMEVAL if the system supports the BSD style clock values.
  59  *      Look in <sys/time.h> for a timeval structure.
  60  */
  61
  62 #define HAVE_TIMEVAL
  63
  64 /* `utime' system call doesn't understand timevals.  */
  65
  66 #define IRIS_UTIME
  67
  68 /*
  69  *      Define HAVE_SELECT if the system supports the `select' system call.
  70  */
  71
  72 #define HAVE_SELECT
  73
  74 /*
  75  *      Define HAVE_PTYS if the system supports pty devices.
  76  */
  77
  78 #define HAVE_PTYS
  79
  80 /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets.  */
  81
  82 #define HAVE_SOCKETS
  83
  84 /*
  85  *      Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
  86  *      The 4.2 opendir, etc., library functions.
  87  */
  88
  89 /* #define NONSYSTEM_DIR_LIBRARY */
  90
  91 /* Define this symbol if your system has the functions bcopy, etc. */
  92
  93 #define BSTRING
  94
  95 /* subprocesses should be defined if you want to
  96    have code for asynchronous subprocesses
  97    (as used in M-x compile and M-x shell).
  98    This is generally OS dependent, and not supported
  99    under most USG systems. */
 100
 101 #define subprocesses
 102
 103 /* If your system uses COFF (Common Object File Format) then define the
 104    preprocessor symbol "COFF". */
 105
 106 /* #define COFF */
 107
 108 /* define MAIL_USE_FLOCK if the mailer uses flock
 109    to interlock access to /usr/spool/mail/$USER.
 110    The alternative is that a lock file named
 111    /usr/spool/mail/$USER.lock.  */
 112
 113 /* #define MAIL_USE_FLOCK */
 114
 115 /* Define CLASH_DETECTION if you want lock files to be written
 116    so that Emacs can tell instantly when you try to modify
 117    a file that someone else has modified in his Emacs.  */
 118
 119 /* #define CLASH_DETECTION */
 120
 121 /* We use the Berkeley (and usg5.2.2) interface to nlist.  */
 122
 123 #define NLIST_STRUCT
 124
 125 /* The file containing the kernel's symbol table is called /vmunix.  */
 126
 127 #define KERNEL_FILE "/vmunix"
 128
 129 /* The symbol in the kernel where the load average is found
 130    is named _avenrun.  */
 131
 132 #define LDAV_SYMBOL "_avenrun"
 133
 134 \f
 135 /* Special hacks needed to make Emacs run on this system.  */
 136
 137 /*
 138  *      Make the sigsetmask function go away.  Don't know what the
 139  *      ramifications of this are, but doesn't seem possible to
 140  *      emulate it properly anyway at this point.
 141  */
 142
 143 #define sigsetmask(mask)        /* Null expansion */
 144 #define sigblock(x) x
 145
 146 /* The IRIS defines SIGIO in signal.h, but doesn't implement it. */
 147 #undef SIGIO
 148
 149 #define LIBS_MACHINE -lbsd -ldbm -lPW
 150 #define C_SWITCH_MACHINE -I/usr/include/bsd
 151
 152 /* setjmp and longjmp can safely replace _setjmp and _longjmp,
 153    but they will run slower.  */
 154
 155 #define _setjmp setjmp
 156 #define _longjmp longjmp
 157
 158 /* On USG systems the system calls are interruptable by signals
 159  that the user program has elected to catch.  Thus the system call
 160  must be retried in these cases.  To handle this without massive
 161  changes in the source code, we remap the standard system call names
 162  to names for our own functions in sysdep.c that do the system call
 163  with retries. */
 164
 165 #define read sys_read
 166 #define open sys_open
 167 #define write sys_write
 168
 169 #define INTERRUPTIBLE_OPEN
 170 #define INTERRUPTIBLE_IO
 171
 172 /* On USG systems these have different names */
 173
 174 #define index strchr
 175 #define rindex strrchr
 176
 177 /* USG systems tend to put everything declared static
 178    into the initialized data area, which becomes pure after dumping Emacs.
 179    Foil this.  Emacs carefully avoids static vars inside functions.  */
 180
 181 /* #define static */
 182
 183 /* Compiler bug bites on many systems when default ADDR_CORRECT is used.  */
 184
 185 #define ADDR_CORRECT(x) (int)((char *)(x) - (char*)0)
 186
 187 /* some errno.h's don't actually allocate the variable itself */
 188
 189 #define NEED_ERRNO
 190
 191 /* This is how to get the device name of the tty end of a pty.  */
 192 #define PTY_TTY_NAME_SPRINTF \
 193             sprintf (ptyname, "/dev/ttyq%d", minor (stb.st_rdev));
 194
 195 /* The C library does have the getwd function.  */
 196 #define HAVE_GETWD