code.delx.au - gnu-emacs/blob - 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
   5 Copyright (C) 1985, 1986, 1992, 1999, 2001, 2002, 2003, 2004, 2005,
   6                  2006, 2007, 2008, 2009, 2010, 2011  Free Software Foundation, Inc.
   7
   8 This file is part of GNU Emacs.
   9
  10 GNU Emacs is free software: you can redistribute it and/or modify
  11 it under the terms of the GNU General Public License as published by
  12 the Free Software Foundation, either version 3 of the License, or
  13 (at your option) any later version.
  14
  15 GNU Emacs is distributed in the hope that it will be useful,
  16 but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 GNU General Public License for more details.
  19
  20 You should have received a copy of the GNU General Public License
  21 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  22
  23
  24 /* Define symbols to identify the version of Unix this is.
  25    Define all the symbols that apply correctly.  */
  26
  27 /* #define USG5 */
  28 /* #define USG */
  29 /* #define HPUX */
  30 /* #define BSD4_2 */
  31 /* #define BSD4_3 */
  32 /* #define BSD_SYSTEM */
  33
  34 /* SYSTEM_TYPE should indicate the kind of system you are using.
  35    It sets the Lisp variable system-type.  */
  36
  37 #define SYSTEM_TYPE "berkeley-unix"
  38
  39 /* Emacs can read input using SIGIO and buffering characters itself,
  40    or using CBREAK mode and making C-g cause SIGINT.
  41    The choice is controlled by the variable interrupt_input.
  42
  43    Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
  44
  45    Emacs uses the presence or absence of the SIGIO and BROKEN_SIGIO macros
  46    to indicate whether or not signal-driven I/O is possible.  It uses
  47    INTERRUPT_INPUT to decide whether to use it by default.
  48
  49    SIGIO can be used only on systems that implement it (4.2 and 4.3).
  50    CBREAK mode has two disadvantages
  51      1) At least in 4.2, it is impossible to handle the Meta key properly.
  52         I hear that in system V this problem does not exist.
  53      2) Control-G causes output to be discarded.
  54         I do not know whether this can be fixed in system V.
  55
  56    Another method of doing input is planned but not implemented.
  57    It would have Emacs fork off a separate process
  58    to read the input and send it to the true Emacs process
  59    through a pipe.  */
  60 #define INTERRUPT_INPUT
  61
  62 /* Letter to use in finding device name of first pty,
  63    if system supports pty's.  'a' means it is /dev/ptya0.  */
  64 #define FIRST_PTY_LETTER 'a'
  65
  66 /* Define HAVE_PTYS if the system supports pty devices.  */
  67 #define HAVE_PTYS
  68
  69 /* subprocesses should be undefined if you do NOT want to
  70    have code for asynchronous subprocesses
  71    (as used in M-x compile and M-x shell).
  72    Currently only MSDOS does not support this.  */
  73
  74 /* #undef subprocesses */
  75
  76 /* Define CLASH_DETECTION if you want lock files to be written
  77    so that Emacs can tell instantly when you try to modify
  78    a file that someone else has modified in his Emacs.  */
  79 #define CLASH_DETECTION
  80
  81 /* Define this if your operating system declares signal handlers to
  82    have a type other than the usual.  `The usual' is `void' for ANSI C
  83    systems (i.e. when the __STDC__ macro is defined), and `int' for
  84    pre-ANSI systems.  If you're using GCC on an older system, __STDC__
  85    will be defined, but the system's include files will still say that
  86    signal returns int or whatever; in situations like that, define
  87    this to be what the system's include files want.  */
  88 /* #define SIGTYPE int */
  89
  90 /* If the character used to separate elements of the executable path
  91    is not ':', #define this to be the appropriate character constant.  */
  92 /* #define SEPCHAR ':' */
  93
  94 /* ============================================================ */
  95
  96 /* Here, add any special hacks needed to make Emacs work on this
  97    system.  For example, you might define certain system call names
  98    that don't exist on your system, or that do different things on
  99    your system and must be used only through an encapsulation (which
 100    you should place, by convention, in sysdep.c).  */
 101
 102 /* If the system's imake configuration file defines `NeedWidePrototypes'
 103    as `NO', we must define NARROWPROTO manually.  Such a define is
 104    generated in the Makefile generated by `xmkmf'.  If we don't
 105    define NARROWPROTO, we will see the wrong function prototypes
 106    for X functions taking float or double parameters.  */
 107
 108 /*  #define NARROWPROTO 1 */
 109
 110 /* ============================================================ */
 111
 112 /* After adding support for a new system, modify the large case
 113    statement in configure.in to recognize reasonable
 114    configuration names, and add a description of the system to
 115    `etc/MACHINES'.
 116
 117    Check for any tests of $opsys in configure.in, and add an entry
 118    for the new system if needed.
 119
 120    If you've just fixed a problem in an existing configuration file,
 121    you should also check `etc/MACHINES' to make sure its descriptions
 122    of known problems in that configuration should be updated.  */
 123
 124 /* arch-tag: 4b426b11-cb2e-4c0e-a488-e663f76a0515
 125    (do not change this comment) */