src/s/usg5-2-2.h

   1 /* Definitions file for GNU Emacs running on AT&T's System V Release 2.2
   2    Copyright (C) 1985, 1986, 1999 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, Inc., 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21
  22 /*
  23  *      Define symbols to identify the version of Unix this is.
  24  *      Define all the symbols that apply correctly.
  25  */
  26
  27 #define USG                             /* System III, System V, etc */
  28
  29 #define USG5
  30
  31 /* SYSTEM_TYPE should indicate the kind of system you are using.
  32  It sets the Lisp variable system-type.  */
  33
  34 #define SYSTEM_TYPE "usg-unix-v"
  35
  36 /* nomultiplejobs should be defined if your system's shell
  37  does not have "job control" (the ability to stop a program,
  38  run some other program, then continue the first one).  */
  39
  40 #define NOMULTIPLEJOBS
  41
  42 /* Default is to set interrupt_input to 0: don't do input buffering within Emacs */
  43
  44 /* #define INTERRUPT_INPUT */
  45
  46 /* Letter to use in finding device name of first pty,
  47   if system supports pty's.  'p' means it is /dev/ptyp0  */
  48
  49 #define FIRST_PTY_LETTER 'p'
  50
  51 /*
  52  *      Define HAVE_TERMIO if the system provides sysV-style ioctls
  53  *      for terminal control.
  54  */
  55
  56 #define HAVE_TERMIO
  57
  58 /*
  59  *      Define HAVE_PTYS if the system supports pty devices.
  60  */
  61
  62 /* #define HAVE_PTYS */
  63
  64 /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets.  */
  65
  66 /* #define HAVE_SOCKETS */
  67
  68 /*
  69  *      Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
  70  *      The 4.2 opendir, etc., library functions.
  71  */
  72
  73 #define NONSYSTEM_DIR_LIBRARY
  74
  75 /* Define this symbol if your system has the functions bcopy, etc. */
  76
  77 /* #define BSTRING */
  78
  79 /* subprocesses should be defined if you want to
  80  have code for asynchronous subprocesses
  81  (as used in M-x compile and M-x shell).
  82  This is supposed to work now on system V release 2.  */
  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 /* Define SHORTNAMES if the C compiler can distinguish only
 105    short names.  It means that the stuff in ../shortnames
 106    must be run to convert the long names to short ones.  */
 107
 108 /* #define SHORTNAMES */
 109
 110 /* The file containing the kernel's symbol table is called /unix.  */
 111
 112 #define KERNEL_FILE "/unix"
 113
 114 /* The symbol in the kernel where the load average is found
 115    is named avenrun.  */
 116
 117 #define LDAV_SYMBOL "avenrun"
 118 \f
 119 /* Special hacks needed to make Emacs run on this system.  */
 120
 121 /*
 122  *      Make the sigsetmask function go away.  Don't know what the
 123  *      ramifications of this are, but doesn't seem possible to
 124  *      emulate it properly anyway at this point.
 125  */
 126
 127 #define sigsetmask(mask)        /* Null expansion */
 128
 129 /* setjmp and longjmp can safely replace _setjmp and _longjmp,
 130    but they will run slower.  */
 131
 132 #define _setjmp setjmp
 133 #define _longjmp longjmp
 134
 135 /* On USG systems these have different names */
 136
 137 #define index strchr
 138 #define rindex strrchr
 139
 140 /* USG systems tend to put everything declared static
 141    into the initialized data area, which becomes pure after dumping Emacs.
 142    Foil this.  Emacs carefully avoids static vars inside functions.  */
 143
 144 #define static
 145
 146 /* Compiler bug bites on many systems when default ADDR_CORRECT is used.  */
 147
 148 #define ADDR_CORRECT(x) (x)
 149
 150 /* Prevent -lg from being used for debugging.  Not implemented?  */
 151
 152 #define LIBS_DEBUG
 153
 154 /* Use terminfo instead of termcap.  */
 155
 156 #define TERMINFO