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 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 #define USG5_0
  31
  32 /* SYSTEM_TYPE should indicate the kind of system you are using.
  33  It sets the Lisp variable system-type.  */
  34
  35 #define SYSTEM_TYPE "usg-unix-v"
  36
  37 /* nomultiplejobs should be defined if your system's shell
  38  does not have "job control" (the ability to stop a program,
  39  run some other program, then continue the first one).  */
  40
  41 #define NOMULTIPLEJOBS
  42
  43 /* Default is to set interrupt_input to 0: don't do input buffering within Emacs */
  44
  45 /* #define INTERRUPT_INPUT */
  46
  47 /* Letter to use in finding device name of first pty,
  48   if system supports pty's.  'p' means it is /dev/ptyp0  */
  49
  50 #define FIRST_PTY_LETTER 'p'
  51
  52 /*
  53  *      Define HAVE_TERMIO if the system provides sysV-style ioctls
  54  *      for terminal control.
  55  */
  56
  57 #define HAVE_TERMIO
  58
  59 /*
  60  *      Define HAVE_PTYS if the system supports pty devices.
  61  */
  62
  63 /* #define HAVE_PTYS */
  64
  65 /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets.  */
  66
  67 /* #define HAVE_SOCKETS */
  68
  69 /*
  70  *      Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
  71  *      The 4.2 opendir, etc., library functions.
  72  */
  73
  74 #define NONSYSTEM_DIR_LIBRARY
  75
  76 /* Define this symbol if your system has the functions bcopy, etc. */
  77
  78 /* #define BSTRING */
  79
  80 /* subprocesses should be defined if you want to
  81  have code for asynchronous subprocesses
  82  (as used in M-x compile and M-x shell).
  83  This is supposed to work now on system V release 2.  */
  84
  85 #define subprocesses
  86
  87 /* If your system uses COFF (Common Object File Format) then define the
  88    preprocessor symbol "COFF". */
  89
  90 #define COFF
  91
  92 /* define MAIL_USE_FLOCK if the mailer uses flock
  93    to interlock access to /usr/spool/mail/$USER.
  94    The alternative is that a lock file named
  95    /usr/spool/mail/$USER.lock.  */
  96
  97 /* #define MAIL_USE_FLOCK */
  98
  99 /* Define CLASH_DETECTION if you want lock files to be written
 100    so that Emacs can tell instantly when you try to modify
 101    a file that someone else has modified in his Emacs.  */
 102
 103 /* #define CLASH_DETECTION */
 104
 105 /* Define SHORTNAMES if the C compiler can distinguish only
 106    short names.  It means that the stuff in ../shortnames
 107    must be run to convert the long names to short ones.  */
 108
 109 #define SHORTNAMES
 110
 111 /* The file containing the kernel's symbol table is called /unix.  */
 112
 113 #define KERNEL_FILE "/unix"
 114
 115 /* The symbol in the kernel where the load average is found
 116    is named avenrun.  */
 117
 118 #define LDAV_SYMBOL "avenrun"
 119 \f
 120 /* Special hacks needed to make Emacs run on this system.  */
 121
 122 /*
 123  *      Make the sigsetmask function go away.  Don't know what the
 124  *      ramifications of this are, but doesn't seem possible to
 125  *      emulate it properly anyway at this point.
 126  */
 127
 128 #define sigsetmask(mask)        /* Null expansion */
 129
 130 /* setjmp and longjmp can safely replace _setjmp and _longjmp,
 131    but they will run slower.  */
 132
 133 #define _setjmp setjmp
 134 #define _longjmp longjmp
 135
 136 /* On USG systems these have different names */
 137
 138 #define index strchr
 139 #define rindex strrchr
 140
 141 /* USG systems tend to put everything declared static
 142    into the initialized data area, which becomes pure after dumping Emacs.
 143    Foil this.  Emacs carefully avoids static vars inside functions.  */
 144
 145 #define static
 146
 147 /* Compiler bug bites on many systems when default ADDR_CORRECT is used.  */
 148
 149 #define ADDR_CORRECT(x) (x)
 150
 151 /* Prevent -lg from being used for debugging.  Not implemented?  */
 152
 153 #define LIBS_DEBUG