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code.delx.au - gnu-emacs/blob - src/s/darwin.h
59f63f57189d0c09d6e1d2d66b340d285134aa25
1 /* System description header file for Darwin (Mac OS X).
2 Copyright (C) 2001, 2002 Free Software Foundation, Inc.
4 This file is part of GNU Emacs.
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)
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.
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. */
23 * Define symbols to identify the version of Unix this is.
24 * Define all the symbols that apply correctly.
34 /* BSD4_3 and BSD4_4 are already defined in sys/param.h */
40 /* MAC_OS is used to conditionally compile code common to both MAC_OS8
46 /* SYSTEM_TYPE should indicate the kind of system you are using.
47 It sets the Lisp variable system-type. */
49 #define SYSTEM_TYPE "darwin"
51 /* NOMULTIPLEJOBS should be defined if your system's shell
52 does not have "job control" (the ability to stop a program,
53 run some other program, then continue the first one). */
55 /* #define NOMULTIPLEJOBS */
57 /* Emacs can read input using SIGIO and buffering characters itself,
58 or using CBREAK mode and making C-g cause SIGINT.
59 The choice is controlled by the variable interrupt_input.
61 Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
63 Emacs uses the presence or absence of the SIGIO and BROKEN_SIGIO macros
64 to indicate whether or not signal-driven I/O is possible. It uses
65 INTERRUPT_INPUT to decide whether to use it by default.
67 SIGIO can be used only on systems that implement it (4.2 and 4.3).
68 CBREAK mode has two disadvantages
69 1) At least in 4.2, it is impossible to handle the Meta key properly.
70 I hear that in system V this problem does not exist.
71 2) Control-G causes output to be discarded.
72 I do not know whether this can be fixed in system V.
74 Another method of doing input is planned but not implemented.
75 It would have Emacs fork off a separate process
76 to read the input and send it to the true Emacs process
79 #define INTERRUPT_INPUT
81 /* Letter to use in finding device name of first pty,
82 if system supports pty's. 'a' means it is /dev/ptya0 */
84 #define FIRST_PTY_LETTER 'p'
87 * Define HAVE_TERMIOS if the system provides POSIX-style
88 * functions and macros for terminal control.
90 * Define HAVE_TERMIO if the system provides sysV-style ioctls
91 * for terminal control.
93 * Do not define both. HAVE_TERMIOS is preferred, if it is
94 * supported on your system.
98 /* #define HAVE_TERMIO */
103 * Define HAVE_PTYS if the system supports pty devices.
109 * Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
110 * The 4.2 opendir, etc., library functions.
113 /* #define NONSYSTEM_DIR_LIBRARY */
115 /* Define this symbol if your system has the functions bcopy, etc. */
119 /* subprocesses should be defined if you want to
120 have code for asynchronous subprocesses
121 (as used in M-x compile and M-x shell).
122 This is generally OS dependent, and not supported
123 under most USG systems. */
127 /* If your system uses COFF (Common Object File Format) then define the
128 preprocessor symbol "COFF". */
132 /* define MAIL_USE_FLOCK if the mailer uses flock
133 to interlock access to /usr/spool/mail/$USER.
134 The alternative is that a lock file named
135 /usr/spool/mail/$USER.lock. */
137 #define MAIL_USE_FLOCK
139 /* Define CLASH_DETECTION if you want lock files to be written
140 so that Emacs can tell instantly when you try to modify
141 a file that someone else has modified in his Emacs. */
143 #define CLASH_DETECTION
145 /* Define this if your operating system declares signal handlers to
146 have a type other than the usual. `The usual' is `void' for ANSI C
147 systems (i.e. when the __STDC__ macro is defined), and `int' for
148 pre-ANSI systems. If you're using GCC on an older system, __STDC__
149 will be defined, but the system's include files will still say that
150 signal returns int or whatever; in situations like that, define
151 this to be what the system's include files want. */
152 /* #define SIGTYPE int */
154 /* If the character used to separate elements of the executable path
155 is not ':', #define this to be the appropriate character constant. */
156 /* #define SEPCHAR ':' */
158 /* Define this if the system can use mmap for buffer text allocation. */
159 /* #define USE_MMAP_FOR_BUFFERS 1 */
161 /* ============================================================ */
163 /* Here, add any special hacks needed
164 to make Emacs work on this system. For example,
165 you might define certain system call names that don't
166 exist on your system, or that do different things on
167 your system and must be used only through an encapsulation
168 (Which you should place, by convention, in sysdep.c). */
170 /* Some compilers tend to put everything declared static
171 into the initialized data area, which becomes pure after dumping Emacs.
172 On these systems, you must #define static as nothing to foil this.
173 Note that emacs carefully avoids static vars inside functions. */
177 /* If the system's imake configuration file defines `NeedWidePrototypes'
178 as `NO', we must define NARROWPROTO manually. Such a define is
179 generated in the Makefile generated by `xmkmf'. If we don't
180 define NARROWPROTO, we will see the wrong function prototypes
181 for X functions taking float or double parameters. */
183 /* #define NARROWPROTO 1 */
185 /* ============================================================ */
187 /* After adding support for a new system, modify the large case
188 statement in the `configure' script to recognize reasonable
189 configuration names, and add a description of the system to
192 If you've just fixed a problem in an existing configuration file,
193 you should also check `etc/MACHINES' to make sure its descriptions
194 of known problems in that configuration should be updated. */
197 /* Avoid the use of the name init_process (process.c) because it is
198 also the name of a Mach system call. */
199 #define init_process emacs_init_process
201 /* Fix compilation problem for regex.c. */
204 /* Fix compilation problem for md5.c. */
205 #define __attribute__(x)
207 /* Used in dispnew.c. Copied from freebsd.h. */
208 #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_p - (FILE)->_bf._base)
210 /* Darwin provides POSIX-style getpgrp. */
211 #define GETPGRP_NO_ARG
213 /* System uses OXTABS instead of the expected TAB3. (Copied from
217 /* Darwin ld insists on the use of malloc routines in the System
219 #define SYSTEM_MALLOC
221 /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets. */
224 /* Extra initialization calls in main for Mac OS X system type. */
225 #define SYMS_SYSTEM syms_of_mac()
227 /* Definitions for how to dump. Copied from nextstep.h. */
229 #define UNEXEC unexmacosx.o
231 #define START_FILES pre-crt0.o
233 /* start_of_text isn't actually used, so make it compile without error. */
234 #define TEXT_START (0)
236 /* This seems to be right for end_of_text, but it may not be used anyway. */
237 #define TEXT_END get_etext()
239 /* This seems to be right for end_of_data, but it may not be used anyway. */
240 #define DATA_END get_edata()
242 /* Definitions for how to compile & link. */
244 /* Indicate that we are compiling for Mac OS X and where to find Mac
246 #define C_SWITCH_SYSTEM -fpascal-strings -fno-common -DMAC_OSX -I../mac/src
248 /* Link in the Carbon lib. The -headerpad option tells ld (see man
249 page) to leave room at the end of the header for adding load
250 commands. Needed for dumping. 0x690 is the total size of 30
251 segment load commands (at 56 each). */
252 #define LD_SWITCH_SYSTEM_TEMACS -prebind -framework Carbon -lstdc++ -Xlinker -headerpad -Xlinker 690
254 #define C_SWITCH_SYSTEM_TEMACS -Dtemacs
256 /* The ncurses library has been moved out of the System framework in
257 Mac OS X 10.2. So if ./configure detects it, set the command-line
259 #ifdef HAVE_LIBNCURSES
260 #define LIBS_TERMCAP -lncurses
263 /* Link this program just by running cc. */
264 #define ORDINARY_LINK
266 /* We don't have a g library, so override the -lg LIBS_DEBUG switch. */
269 /* Adding -lm confuses the dynamic linker, so omit it. */
272 /* Tell src/Makefile.in to create files in the Mac OS X application
273 bundle mac/Emacs.app. */
274 #define OTHER_FILES macosx-app
277 /* Define the following so emacs symbols will not conflict with those
278 in the System framework. Otherwise -prebind will not work. */
280 /* Do not define abort in emacs.c. */
283 /* Do not define matherr in floatfns.c. */
287 /* This prevents a compilation error in xfaces.c: struct kboard * is
288 used in a function protocol the first time this type appears in the
289 file, since MULTI_KBOARD is undefined for the Mac OS X build. */
295 /* This makes create_process in process.c save and restore signal
296 handlers correctly. Suggested by Nozomu Ando.*/
297 #define POSIX_SIGNALS
301 #define malloc unexec_malloc
302 #define realloc unexec_realloc
303 #define free unexec_free