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, 5 2005, 2006, 2007 Free Software Foundation, Inc. 6 7This file is part of GNU Emacs. 8 9GNU Emacs is free software; you can redistribute it and/or modify 10it under the terms of the GNU General Public License as published by 11the Free Software Foundation; either version 2, or (at your option) 12any later version. 13 14GNU Emacs is distributed in the hope that it will be useful, 15but WITHOUT ANY WARRANTY; without even the implied warranty of 16MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17GNU General Public License for more details. 18 19You should have received a copy of the GNU General Public License 20along with GNU Emacs; see the file COPYING. If not, write to 21the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 22Boston, 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) */ 191