src/s/template.h

   1 /* Template for system description header files.
   2    This file describes the parameters that system description files
   3    should define or not.
   4    Copyright (C) 1985, 1986, 1992, 1999, 2001, 2002, 2003, 2004, 2005,
   5                  2006, 2007, 2008, 2009, 2010, 2011  Free Software Foundation, Inc.
   6
   7 This file is part of GNU Emacs.
   8
   9 GNU Emacs is free software: you can redistribute it and/or modify
  10 it under the terms of the GNU General Public License as published by
  11 the Free Software Foundation, either version 3 of the License, or
  12 (at your option) any later version.
  13
  14 GNU Emacs is distributed in the hope that it will be useful,
  15 but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 GNU General Public License for more details.
  18
  19 You should have received a copy of the GNU General Public License
  20 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  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 USG5 */
  29 /* #define USG */
  30 /* #define HPUX */
  31 /* #define BSD4_2 */
  32 /* #define BSD4_3 */
  33 /* #define BSD_SYSTEM */
  34
  35 /* SYSTEM_TYPE should indicate the kind of system you are using.
  36  It sets the Lisp variable system-type.  */
  37
  38 #define SYSTEM_TYPE "berkeley-unix"
  39
  40 /* NOMULTIPLEJOBS should be defined if your system's shell
  41  does not have "job control" (the ability to stop a program,
  42  run some other program, then continue the first one).  */
  43
  44 /* #define NOMULTIPLEJOBS */
  45
  46 /* Emacs can read input using SIGIO and buffering characters itself,
  47    or using CBREAK mode and making C-g cause SIGINT.
  48    The choice is controlled by the variable interrupt_input.
  49
  50    Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
  51
  52    Emacs uses the presence or absence of the SIGIO and BROKEN_SIGIO macros
  53    to indicate whether or not signal-driven I/O is possible.  It uses
  54    INTERRUPT_INPUT to decide whether to use it by default.
  55
  56    SIGIO can be used only on systems that implement it (4.2 and 4.3).
  57    CBREAK mode has two disadvantages
  58      1) At least in 4.2, it is impossible to handle the Meta key properly.
  59         I hear that in system V this problem does not exist.
  60      2) Control-G causes output to be discarded.
  61         I do not know whether this can be fixed in system V.
  62
  63    Another method of doing input is planned but not implemented.
  64    It would have Emacs fork off a separate process
  65    to read the input and send it to the true Emacs process
  66    through a pipe. */
  67
  68 #define INTERRUPT_INPUT
  69
  70 /* Letter to use in finding device name of first pty,
  71   if system supports pty's.  'a' means it is /dev/ptya0  */
  72
  73 #define FIRST_PTY_LETTER 'a'
  74
  75 /*
  76  *      Define HAVE_TERMIOS if the system provides POSIX-style
  77  *      functions and macros for terminal control.
  78  *
  79  *      Define HAVE_TERMIO if the system provides sysV-style ioctls
  80  *      for terminal control.
  81  *
  82  *      Do not define both.  HAVE_TERMIOS is preferred, if it is
  83  *      supported on your system.
  84  */
  85
  86 #define HAVE_TERMIOS
  87 /* #define HAVE_TERMIO */
  88
  89 /*
  90  *      Define HAVE_PTYS if the system supports pty devices.
  91  */
  92
  93 #define HAVE_PTYS
  94
  95 /* Define this symbol if your system has the functions bcopy, etc. */
  96
  97 #define BSTRING
  98
  99 /* subprocesses should be undefined if you do NOT want to
 100    have code for asynchronous subprocesses
 101    (as used in M-x compile and M-x shell).
 102    Currently only MSDOS does not support this. */
 103
 104 /* #undef subprocesses */
 105
 106 /* If your system uses COFF (Common Object File Format) then define the
 107    preprocessor symbol "COFF". */
 108
 109 /* #define COFF */
 110
 111 /* define MAIL_USE_FLOCK if the mailer uses flock
 112    to interlock access to /usr/spool/mail/$USER.
 113    The alternative is that a lock file named
 114    /usr/spool/mail/$USER.lock.  */
 115
 116 #define MAIL_USE_FLOCK
 117
 118 /* Define CLASH_DETECTION if you want lock files to be written
 119    so that Emacs can tell instantly when you try to modify
 120    a file that someone else has modified in his Emacs.  */
 121
 122 #define CLASH_DETECTION
 123
 124 /* Define this if your operating system declares signal handlers to
 125    have a type other than the usual.  `The usual' is `void' for ANSI C
 126    systems (i.e. when the __STDC__ macro is defined), and `int' for
 127    pre-ANSI systems.  If you're using GCC on an older system, __STDC__
 128    will be defined, but the system's include files will still say that
 129    signal returns int or whatever; in situations like that, define
 130    this to be what the system's include files want.  */
 131 /* #define SIGTYPE int */
 132
 133 /* If the character used to separate elements of the executable path
 134    is not ':', #define this to be the appropriate character constant.  */
 135 /* #define SEPCHAR ':' */
 136
 137 /* Define this if the system can use mmap for buffer text allocation.  */
 138 /* #define USE_MMAP_FOR_BUFFERS 1 */
 139
 140 /* ============================================================ */
 141
 142 /* Here, add any special hacks needed
 143    to make Emacs work on this system.  For example,
 144    you might define certain system call names that don't
 145    exist on your system, or that do different things on
 146    your system and must be used only through an encapsulation
 147    (Which you should place, by convention, in sysdep.c).  */
 148
 149 /* If the system's imake configuration file defines `NeedWidePrototypes'
 150    as `NO', we must define NARROWPROTO manually.  Such a define is
 151    generated in the Makefile generated by `xmkmf'.  If we don't
 152    define NARROWPROTO, we will see the wrong function prototypes
 153    for X functions taking float or double parameters.  */
 154
 155 /*  #define NARROWPROTO 1 */
 156
 157 /* ============================================================ */
 158
 159 /* After adding support for a new system, modify the large case
 160    statement in the `configure' script to recognize reasonable
 161    configuration names, and add a description of the system to
 162    `etc/MACHINES'.
 163
 164    If you've just fixed a problem in an existing configuration file,
 165    you should also check `etc/MACHINES' to make sure its descriptions
 166    of known problems in that configuration should be updated.  */
 167
 168 /* arch-tag: 4b426b11-cb2e-4c0e-a488-e663f76a0515
 169    (do not change this comment) */