1 /* System description header file for Darwin (Mac OS X).
2 Copyright (C) 2001, 2002, 2003, 2004, 2005,
3 2006, 2007 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
24 * Define symbols to identify the version of Unix this is.
25 * Define all the symbols that apply correctly.
35 /* BSD4_3 and BSD4_4 are already defined in sys/param.h */
41 #if 0 /* Don't define DARWIN on Mac OS X because CoreFoundation.h uses
42 it to distinguish Mac OS X from bare Darwin. */
48 /* MAC_OS is used to conditionally compile code common to both MAC_OS8
56 /* We need a little extra space, see ../../lisp/loadup.el. */
57 #define SYSTEM_PURESIZE_EXTRA 30000
60 /* SYSTEM_TYPE should indicate the kind of system you are using.
61 It sets the Lisp variable system-type. */
63 #define SYSTEM_TYPE "darwin"
65 /* NOMULTIPLEJOBS should be defined if your system's shell
66 does not have "job control" (the ability to stop a program,
67 run some other program, then continue the first one). */
69 /* #define NOMULTIPLEJOBS */
71 /* Emacs can read input using SIGIO and buffering characters itself,
72 or using CBREAK mode and making C-g cause SIGINT.
73 The choice is controlled by the variable interrupt_input.
75 Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
77 Emacs uses the presence or absence of the SIGIO and BROKEN_SIGIO macros
78 to indicate whether or not signal-driven I/O is possible. It uses
79 INTERRUPT_INPUT to decide whether to use it by default.
81 SIGIO can be used only on systems that implement it (4.2 and 4.3).
82 CBREAK mode has two disadvantages
83 1) At least in 4.2, it is impossible to handle the Meta key properly.
84 I hear that in system V this problem does not exist.
85 2) Control-G causes output to be discarded.
86 I do not know whether this can be fixed in system V.
88 Another method of doing input is planned but not implemented.
89 It would have Emacs fork off a separate process
90 to read the input and send it to the true Emacs process
93 #define INTERRUPT_INPUT
95 /* Letter to use in finding device name of first pty,
96 if system supports pty's. 'a' means it is /dev/ptya0 */
98 #define FIRST_PTY_LETTER 'p'
101 * Define HAVE_TERMIOS if the system provides POSIX-style
102 * functions and macros for terminal control.
104 * Define HAVE_TERMIO if the system provides sysV-style ioctls
105 * for terminal control.
107 * Do not define both. HAVE_TERMIOS is preferred, if it is
108 * supported on your system.
112 /* #define HAVE_TERMIO */
117 * Define HAVE_PTYS if the system supports pty devices.
118 * Note: PTYs are broken on darwin <6. Use at your own risk.
124 * PTYs only work correctly on Darwin 7 or higher. So make the
125 * default for process-connection-type dependent on the kernel
128 #define MIN_PTY_KERNEL_VERSION '7'
131 * Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
132 * The 4.2 opendir, etc., library functions.
135 /* #define NONSYSTEM_DIR_LIBRARY */
137 /* Define this symbol if your system has the functions bcopy, etc. */
141 /* subprocesses should be defined if you want to
142 have code for asynchronous subprocesses
143 (as used in M-x compile and M-x shell).
144 This is generally OS dependent, and not supported
145 under most USG systems. */
149 /* If your system uses COFF (Common Object File Format) then define the
150 preprocessor symbol "COFF". */
154 /* define MAIL_USE_FLOCK if the mailer uses flock
155 to interlock access to /usr/spool/mail/$USER.
156 The alternative is that a lock file named
157 /usr/spool/mail/$USER.lock. */
159 #define MAIL_USE_FLOCK
161 /* Define CLASH_DETECTION if you want lock files to be written
162 so that Emacs can tell instantly when you try to modify
163 a file that someone else has modified in his Emacs. */
165 #define CLASH_DETECTION
167 /* Define this if your operating system declares signal handlers to
168 have a type other than the usual. `The usual' is `void' for ANSI C
169 systems (i.e. when the __STDC__ macro is defined), and `int' for
170 pre-ANSI systems. If you're using GCC on an older system, __STDC__
171 will be defined, but the system's include files will still say that
172 signal returns int or whatever; in situations like that, define
173 this to be what the system's include files want. */
174 /* #define SIGTYPE int */
176 /* If the character used to separate elements of the executable path
177 is not ':', #define this to be the appropriate character constant. */
178 /* #define SEPCHAR ':' */
180 /* Define this if the system can use mmap for buffer text allocation. */
181 /* #define USE_MMAP_FOR_BUFFERS 1 */
183 /* ============================================================ */
185 /* Here, add any special hacks needed
186 to make Emacs work on this system. For example,
187 you might define certain system call names that don't
188 exist on your system, or that do different things on
189 your system and must be used only through an encapsulation
190 (Which you should place, by convention, in sysdep.c). */
192 /* Some compilers tend to put everything declared static
193 into the initialized data area, which becomes pure after dumping Emacs.
194 On these systems, you must #define static as nothing to foil this.
195 Note that emacs carefully avoids static vars inside functions. */
199 /* If the system's imake configuration file defines `NeedWidePrototypes'
200 as `NO', we must define NARROWPROTO manually. Such a define is
201 generated in the Makefile generated by `xmkmf'. If we don't
202 define NARROWPROTO, we will see the wrong function prototypes
203 for X functions taking float or double parameters. */
205 /* #define NARROWPROTO 1 */
207 /* ============================================================ */
209 /* After adding support for a new system, modify the large case
210 statement in the `configure' script to recognize reasonable
211 configuration names, and add a description of the system to
214 If you've just fixed a problem in an existing configuration file,
215 you should also check `etc/MACHINES' to make sure its descriptions
216 of known problems in that configuration should be updated. */
219 /* Avoid the use of the name init_process (process.c) because it is
220 also the name of a Mach system call. */
221 #define init_process emacs_init_process
223 /* Used in dispnew.c. Copied from freebsd.h. */
224 #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_p - (FILE)->_bf._base)
226 /* System uses OXTABS instead of the expected TAB3. (Copied from
230 /* Darwin ld insists on the use of malloc routines in the System
232 #define SYSTEM_MALLOC
234 /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets. */
237 /* In Carbon, asynchronous I/O (using SIGIO) can't be used for window
238 events because they don't come from sockets, even though it works
241 #define NO_SOCK_SIGIO
244 /* Extra initialization calls in main for Mac OS X system type. */
246 #define SYMS_SYSTEM syms_of_mac()
249 /* Definitions for how to dump. Copied from nextstep.h. */
251 #define UNEXEC unexmacosx.o
253 #define START_FILES pre-crt0.o
255 /* start_of_text isn't actually used, so make it compile without error. */
256 #define TEXT_START (0)
258 /* This seems to be right for end_of_text, but it may not be used anyway. */
259 #define TEXT_END get_etext()
261 /* This seems to be right for end_of_data, but it may not be used anyway. */
262 #define DATA_END get_edata()
264 /* Definitions for how to compile & link. */
266 /* Indicate that we are compiling for Mac OS X. */
267 #define C_SWITCH_SYSTEM -fpascal-strings -DMAC_OSX
269 /* Link in the Carbon lib. */
271 #define LIBS_CARBON -framework Carbon -framework QuickTime
276 /* The -headerpad option tells ld (see man page) to leave room at the
277 end of the header for adding load commands. Needed for dumping.
278 0x690 is the total size of 30 segment load commands (at 56
280 #define LD_SWITCH_SYSTEM_TEMACS -prebind LIBS_CARBON -Xlinker -headerpad -Xlinker 690
282 #define C_SWITCH_SYSTEM_TEMACS -Dtemacs
284 /* The ncurses library has been moved out of the System framework in
285 Mac OS X 10.2. So if ./configure detects it, set the command-line
287 #ifdef HAVE_LIBNCURSES
288 #define LIBS_TERMCAP -lncurses
289 /* This prevents crashes when running Emacs in Terminal.app under
294 /* Link this program just by running cc. */
295 #define ORDINARY_LINK
297 /* We don't have a g library, so override the -lg LIBS_DEBUG switch. */
300 /* Adding -lm confuses the dynamic linker, so omit it. */
303 /* Tell src/Makefile.in to create files in the Mac OS X application
304 bundle mac/Emacs.app. */
306 #define OTHER_FILES macosx-app
310 /* Define the following so emacs symbols will not conflict with those
311 in the System framework. Otherwise -prebind will not work. */
313 /* Do not define abort in emacs.c. */
316 /* Do not define matherr in floatfns.c. */
320 /* The following solves the problem that Emacs hangs when evaluating
321 (make-comint "test0" "/nodir/nofile" nil "") when /nodir/nofile
323 #undef HAVE_WORKING_VFORK
326 /* Don't close pty in process.c to make it as controlling terminal.
327 It is already a controlling terminal of subprocess, because we did
329 #define DONT_REOPEN_PTY
332 #define malloc unexec_malloc
333 #define realloc unexec_realloc
334 #define free unexec_free
337 /* This makes create_process in process.c save and restore signal
338 handlers correctly. Suggested by Nozomu Ando.*/
339 #define POSIX_SIGNALS
341 /* Reroute calls to SELECT to the version defined in mac.c to fix the
342 problem of Emacs requiring an extra return to be typed to start
343 working when started from the command line. */
344 #if defined (HAVE_CARBON) && (defined (emacs) || defined (temacs))
345 #define select sys_select
348 /* Use the GC_MAKE_GCPROS_NOOPS (see lisp.h) method for marking the
350 #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
352 /* arch-tag: 481d443d-4f89-43ea-b5fb-49706d95fa41
353 (do not change this comment) */