src/s/usg5-0.h

   1 /* Definitions file for GNU Emacs running on AT&T's System V.0
   2    Copyright (C) 1985, 1986, 1999, 2001, 2002, 2003, 2004,
   3                  2005, 2006, 2007, 2008  Free Software Foundation, Inc.
   4
   5 This file is part of GNU Emacs.
   6
   7 GNU Emacs is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 3, or (at your option)
  10 any later version.
  11
  12 GNU Emacs is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU Emacs; see the file COPYING.  If not, write to
  19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20 Boston, MA 02110-1301, USA.  */
  21
  22
  23 /*
  24  *      Define symbols to identify the version of Unix this is.
  25  *      Define all the symbols that apply correctly.
  26  */
  27
  28 #define USG                             /* System III, System V, etc */
  29
  30 #define USG5
  31 #define USG5_0
  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 "usg-unix-v"
  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.  'p' means it is /dev/ptyp0  */
  50
  51 #define FIRST_PTY_LETTER 'p'
  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_PTYS if the system supports pty devices.
  62  */
  63
  64 /* #define HAVE_PTYS */
  65
  66 /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets.  */
  67
  68 /* #define HAVE_SOCKETS */
  69
  70 /*
  71  *      Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
  72  *      The 4.2 opendir, etc., library functions.
  73  */
  74
  75 #define NONSYSTEM_DIR_LIBRARY
  76
  77 /* Define this symbol if your system has the functions bcopy, etc. */
  78
  79 /* #define BSTRING */
  80
  81 /* subprocesses should be defined if you want to
  82  have code for asynchronous subprocesses
  83  (as used in M-x compile and M-x shell).
  84  This is supposed to work now on system V release 2.  */
  85
  86 #define subprocesses
  87
  88 /* If your system uses COFF (Common Object File Format) then define the
  89    preprocessor symbol "COFF". */
  90
  91 #define COFF
  92
  93 /* define MAIL_USE_FLOCK if the mailer uses flock
  94    to interlock access to /usr/spool/mail/$USER.
  95    The alternative is that a lock file named
  96    /usr/spool/mail/$USER.lock.  */
  97
  98 /* #define MAIL_USE_FLOCK */
  99
 100 /* Define CLASH_DETECTION if you want lock files to be written
 101    so that Emacs can tell instantly when you try to modify
 102    a file that someone else has modified in his Emacs.  */
 103
 104 /* #define CLASH_DETECTION */
 105
 106 /* The file containing the kernel's symbol table is called /unix.  */
 107
 108 #define KERNEL_FILE "/unix"
 109
 110 /* The symbol in the kernel where the load average is found
 111    is named avenrun.  */
 112
 113 #define LDAV_SYMBOL "avenrun"
 114 \f
 115 /* Special hacks needed to make Emacs run on this system.  */
 116
 117 /*
 118  *      Make the sigsetmask function go away.  Don't know what the
 119  *      ramifications of this are, but doesn't seem possible to
 120  *      emulate it properly anyway at this point.
 121  */
 122
 123 #define sigsetmask(mask)        /* Null expansion */
 124
 125 /* setjmp and longjmp can safely replace _setjmp and _longjmp,
 126    but they will run slower.  */
 127
 128 #define _setjmp setjmp
 129 #define _longjmp longjmp
 130
 131 /* On USG systems these have different names */
 132
 133 #define index strchr
 134 #define rindex strrchr
 135
 136 /* USG systems tend to put everything declared static
 137    into the initialized data area, which becomes pure after dumping Emacs.
 138    Foil this.  Emacs carefully avoids static vars inside functions.  */
 139
 140 #define static
 141
 142 /* Compiler bug bites on many systems when default ADDR_CORRECT is used.  */
 143
 144 #define ADDR_CORRECT(x) (x)
 145
 146 /* Prevent -lg from being used for debugging.  Not implemented?  */
 147
 148 #define LIBS_DEBUG
 149
 150 /* arch-tag: a18bdba9-506d-40ed-9877-49fc27ce8cac
 151    (do not change this comment) */