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, 2002, 2003, 2004,
   5                  2005, 2006 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 2, or (at your option)
  12 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; see the file COPYING.  If not, write to
  21 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  22 Boston, MA 02110-1301, USA.  */
  23
  24
  25 /*
  26  *      Define symbols to identify the version of Unix this is.
  27  *      Define all the symbols that apply correctly.
  28  */
  29
  30 /* #define UNIPLUS */
  31 /* #define USG5 */
  32 /* #define USG */
  33 /* #define HPUX */
  34 /* #define UMAX */
  35 /* #define BSD4_1 */
  36 /* #define BSD4_2 */
  37 /* #define BSD4_3 */
  38 /* #define BSD_SYSTEM */
  39 /* #define VMS */
  40
  41 /* SYSTEM_TYPE should indicate the kind of system you are using.
  42  It sets the Lisp variable system-type.  */
  43
  44 #define SYSTEM_TYPE "berkeley-unix"
  45
  46 /* NOMULTIPLEJOBS should be defined if your system's shell
  47  does not have "job control" (the ability to stop a program,
  48  run some other program, then continue the first one).  */
  49
  50 /* #define NOMULTIPLEJOBS */
  51
  52 /* Emacs can read input using SIGIO and buffering characters itself,
  53    or using CBREAK mode and making C-g cause SIGINT.
  54    The choice is controlled by the variable interrupt_input.
  55
  56    Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
  57
  58    Emacs uses the presence or absence of the SIGIO and BROKEN_SIGIO macros
  59    to indicate whether or not signal-driven I/O is possible.  It uses
  60    INTERRUPT_INPUT to decide whether to use it by default.
  61
  62    SIGIO can be used only on systems that implement it (4.2 and 4.3).
  63    CBREAK mode has two disadvantages
  64      1) At least in 4.2, it is impossible to handle the Meta key properly.
  65         I hear that in system V this problem does not exist.
  66      2) Control-G causes output to be discarded.
  67         I do not know whether this can be fixed in system V.
  68
  69    Another method of doing input is planned but not implemented.
  70    It would have Emacs fork off a separate process
  71    to read the input and send it to the true Emacs process
  72    through a pipe. */
  73
  74 #define INTERRUPT_INPUT
  75
  76 /* Letter to use in finding device name of first pty,
  77   if system supports pty's.  'a' means it is /dev/ptya0  */
  78
  79 #define FIRST_PTY_LETTER 'a'
  80
  81 /*
  82  *      Define HAVE_TERMIOS if the system provides POSIX-style
  83  *      functions and macros for terminal control.
  84  *
  85  *      Define HAVE_TERMIO if the system provides sysV-style ioctls
  86  *      for terminal control.
  87  *
  88  *      Do not define both.  HAVE_TERMIOS is preferred, if it is
  89  *      supported on your system.
  90  */
  91
  92 #define HAVE_TERMIOS
  93 /* #define HAVE_TERMIO */
  94
  95 /*
  96  *      Define HAVE_PTYS if the system supports pty devices.
  97  */
  98
  99 #define HAVE_PTYS
 100
 101 /*
 102  *      Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
 103  *      The 4.2 opendir, etc., library functions.
 104  */
 105
 106 #define NONSYSTEM_DIR_LIBRARY
 107
 108 /* Define this symbol if your system has the functions bcopy, etc. */
 109
 110 #define BSTRING
 111
 112 /* subprocesses should be defined if you want to
 113    have code for asynchronous subprocesses
 114    (as used in M-x compile and M-x shell).
 115    This is generally OS dependent, and not supported
 116    under most USG systems. */
 117
 118 #define subprocesses
 119
 120 /* If your system uses COFF (Common Object File Format) then define the
 121    preprocessor symbol "COFF". */
 122
 123 /* #define COFF */
 124
 125 /* define MAIL_USE_FLOCK if the mailer uses flock
 126    to interlock access to /usr/spool/mail/$USER.
 127    The alternative is that a lock file named
 128    /usr/spool/mail/$USER.lock.  */
 129
 130 #define MAIL_USE_FLOCK
 131
 132 /* Define CLASH_DETECTION if you want lock files to be written
 133    so that Emacs can tell instantly when you try to modify
 134    a file that someone else has modified in his Emacs.  */
 135
 136 #define CLASH_DETECTION
 137
 138 /* Define this if your operating system declares signal handlers to
 139    have a type other than the usual.  `The usual' is `void' for ANSI C
 140    systems (i.e. when the __STDC__ macro is defined), and `int' for
 141    pre-ANSI systems.  If you're using GCC on an older system, __STDC__
 142    will be defined, but the system's include files will still say that
 143    signal returns int or whatever; in situations like that, define
 144    this to be what the system's include files want.  */
 145 /* #define SIGTYPE int */
 146
 147 /* If the character used to separate elements of the executable path
 148    is not ':', #define this to be the appropriate character constant.  */
 149 /* #define SEPCHAR ':' */
 150
 151 /* Define this if the system can use mmap for buffer text allocation.  */
 152 /* #define USE_MMAP_FOR_BUFFERS 1 */
 153
 154 /* ============================================================ */
 155
 156 /* Here, add any special hacks needed
 157    to make Emacs work on this system.  For example,
 158    you might define certain system call names that don't
 159    exist on your system, or that do different things on
 160    your system and must be used only through an encapsulation
 161    (Which you should place, by convention, in sysdep.c).  */
 162
 163 /* Some compilers tend to put everything declared static
 164    into the initialized data area, which becomes pure after dumping Emacs.
 165    On these systems, you must #define static as nothing to foil this.
 166    Note that emacs carefully avoids static vars inside functions.  */
 167
 168 /* #define static */
 169
 170 /* If the system's imake configuration file defines `NeedWidePrototypes'
 171    as `NO', we must define NARROWPROTO manually.  Such a define is
 172    generated in the Makefile generated by `xmkmf'.  If we don't
 173    define NARROWPROTO, we will see the wrong function prototypes
 174    for X functions taking float or double parameters.  */
 175
 176 /*  #define NARROWPROTO 1 */
 177
 178 /* ============================================================ */
 179
 180 /* After adding support for a new system, modify the large case
 181    statement in the `configure' script to recognize reasonable
 182    configuration names, and add a description of the system to
 183    `etc/MACHINES'.
 184
 185    If you've just fixed a problem in an existing configuration file,
 186    you should also check `etc/MACHINES' to make sure its descriptions
 187    of known problems in that configuration should be updated.  */
 188
 189 /* arch-tag: 4b426b11-cb2e-4c0e-a488-e663f76a0515
 190    (do not change this comment) */