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e0f712ba | 1 | /* System description header file for Darwin (Mac OS X). |
4b158629 GM |
2 | Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
3 | 2008 Free Software Foundation, Inc. | |
e0f712ba AC |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
4b158629 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
e0f712ba | 8 | it under the terms of the GNU General Public License as published by |
4b158629 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
e0f712ba AC |
11 | |
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. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
4b158629 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
e0f712ba AC |
19 | |
20 | ||
21 | /* | |
22 | * Define symbols to identify the version of Unix this is. | |
23 | * Define all the symbols that apply correctly. | |
24 | */ | |
25 | ||
e0f712ba AC |
26 | #define BSD4_2 |
27 | /* BSD4_3 and BSD4_4 are already defined in sys/param.h */ | |
e0f712ba AC |
28 | #define BSD_SYSTEM |
29 | /* #define VMS */ | |
30 | ||
31 | /* MAC_OS is used to conditionally compile code common to both MAC_OS8 | |
32 | and MAC_OSX. */ | |
33 | #ifdef MAC_OSX | |
9794a8cd | 34 | #ifdef HAVE_CARBON |
e0f712ba | 35 | #define MAC_OS |
80ca7302 DN |
36 | /* We need a little extra space, see ../../lisp/loadup.el. */ |
37 | #define SYSTEM_PURESIZE_EXTRA 30000 | |
b7ea0894 | 38 | |
caf49fb0 DN |
39 | #endif |
40 | #endif | |
80ca7302 | 41 | |
e0f712ba AC |
42 | /* SYSTEM_TYPE should indicate the kind of system you are using. |
43 | It sets the Lisp variable system-type. */ | |
44 | ||
45 | #define SYSTEM_TYPE "darwin" | |
46 | ||
e0f712ba AC |
47 | /* Emacs can read input using SIGIO and buffering characters itself, |
48 | or using CBREAK mode and making C-g cause SIGINT. | |
49 | The choice is controlled by the variable interrupt_input. | |
50 | ||
51 | Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO) | |
52 | ||
53 | Emacs uses the presence or absence of the SIGIO and BROKEN_SIGIO macros | |
54 | to indicate whether or not signal-driven I/O is possible. It uses | |
55 | INTERRUPT_INPUT to decide whether to use it by default. | |
56 | ||
57 | SIGIO can be used only on systems that implement it (4.2 and 4.3). | |
58 | CBREAK mode has two disadvantages | |
59 | 1) At least in 4.2, it is impossible to handle the Meta key properly. | |
60 | I hear that in system V this problem does not exist. | |
61 | 2) Control-G causes output to be discarded. | |
62 | I do not know whether this can be fixed in system V. | |
63 | ||
64 | Another method of doing input is planned but not implemented. | |
65 | It would have Emacs fork off a separate process | |
66 | to read the input and send it to the true Emacs process | |
67 | through a pipe. */ | |
68 | ||
69 | #define INTERRUPT_INPUT | |
70 | ||
71 | /* Letter to use in finding device name of first pty, | |
72 | if system supports pty's. 'a' means it is /dev/ptya0 */ | |
73 | ||
74 | #define FIRST_PTY_LETTER 'p' | |
75 | ||
76 | /* | |
77 | * Define HAVE_TERMIOS if the system provides POSIX-style | |
78 | * functions and macros for terminal control. | |
79 | * | |
80 | * Define HAVE_TERMIO if the system provides sysV-style ioctls | |
81 | * for terminal control. | |
82 | * | |
83 | * Do not define both. HAVE_TERMIOS is preferred, if it is | |
84 | * supported on your system. | |
85 | */ | |
86 | ||
87 | #define HAVE_TERMIOS | |
88 | /* #define HAVE_TERMIO */ | |
89 | ||
90 | #define NO_TERMIO | |
91 | ||
92 | /* | |
93 | * Define HAVE_PTYS if the system supports pty devices. | |
d9e7c622 | 94 | * Note: PTYs are broken on darwin <6. Use at your own risk. |
e0f712ba AC |
95 | */ |
96 | ||
97 | #define HAVE_PTYS | |
98 | ||
d9e7c622 ST |
99 | /** |
100 | * PTYs only work correctly on Darwin 7 or higher. So make the | |
101 | * default for process-connection-type dependent on the kernel | |
102 | * version. | |
a15252fd | 103 | */ |
bb4c0e89 | 104 | #define MIN_PTY_KERNEL_VERSION '7' |
a15252fd | 105 | |
e0f712ba AC |
106 | /* Define this symbol if your system has the functions bcopy, etc. */ |
107 | ||
108 | #define BSTRING | |
109 | ||
110 | /* subprocesses should be defined if you want to | |
111 | have code for asynchronous subprocesses | |
112 | (as used in M-x compile and M-x shell). | |
113 | This is generally OS dependent, and not supported | |
114 | under most USG systems. */ | |
115 | ||
116 | #define subprocesses | |
117 | ||
e0f712ba AC |
118 | /* define MAIL_USE_FLOCK if the mailer uses flock |
119 | to interlock access to /usr/spool/mail/$USER. | |
120 | The alternative is that a lock file named | |
121 | /usr/spool/mail/$USER.lock. */ | |
122 | ||
123 | #define MAIL_USE_FLOCK | |
124 | ||
125 | /* Define CLASH_DETECTION if you want lock files to be written | |
126 | so that Emacs can tell instantly when you try to modify | |
127 | a file that someone else has modified in his Emacs. */ | |
128 | ||
129 | #define CLASH_DETECTION | |
130 | ||
e0f712ba AC |
131 | /* ============================================================ */ |
132 | ||
133 | /* Here, add any special hacks needed | |
134 | to make Emacs work on this system. For example, | |
135 | you might define certain system call names that don't | |
136 | exist on your system, or that do different things on | |
137 | your system and must be used only through an encapsulation | |
138 | (Which you should place, by convention, in sysdep.c). */ | |
139 | ||
e0f712ba AC |
140 | /* ============================================================ */ |
141 | ||
142 | /* After adding support for a new system, modify the large case | |
143 | statement in the `configure' script to recognize reasonable | |
144 | configuration names, and add a description of the system to | |
145 | `etc/MACHINES'. | |
146 | ||
147 | If you've just fixed a problem in an existing configuration file, | |
148 | you should also check `etc/MACHINES' to make sure its descriptions | |
149 | of known problems in that configuration should be updated. */ | |
150 | ||
151 | ||
152 | /* Avoid the use of the name init_process (process.c) because it is | |
153 | also the name of a Mach system call. */ | |
154 | #define init_process emacs_init_process | |
155 | ||
e0f712ba AC |
156 | /* Used in dispnew.c. Copied from freebsd.h. */ |
157 | #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_p - (FILE)->_bf._base) | |
158 | ||
e0f712ba AC |
159 | /* System uses OXTABS instead of the expected TAB3. (Copied from |
160 | bsd386.h.) */ | |
161 | #define TAB3 OXTABS | |
162 | ||
163 | /* Darwin ld insists on the use of malloc routines in the System | |
164 | framework. */ | |
165 | #define SYSTEM_MALLOC | |
166 | ||
167 | /* Define HAVE_SOCKETS if system supports 4.2-compatible sockets. */ | |
168 | #define HAVE_SOCKETS | |
169 | ||
fc7a70cc ST |
170 | /* In Carbon, asynchronous I/O (using SIGIO) can't be used for window |
171 | events because they don't come from sockets, even though it works | |
172 | fine on tty's. */ | |
edfda783 AR |
173 | /* This seems to help in Ctrl-G detection under Cocoa, however at the cost |
174 | of some quirks that may or may not bother a given user. */ | |
175 | #if defined (HAVE_CARBON) || defined (COCOA_EXPERIMENTAL_CTRL_G) | |
fc7a70cc ST |
176 | #define NO_SOCK_SIGIO |
177 | #endif | |
178 | ||
e0f712ba | 179 | /* Extra initialization calls in main for Mac OS X system type. */ |
9794a8cd | 180 | #ifdef HAVE_CARBON |
e0f712ba | 181 | #define SYMS_SYSTEM syms_of_mac() |
9794a8cd | 182 | #endif |
e0f712ba AC |
183 | |
184 | /* Definitions for how to dump. Copied from nextstep.h. */ | |
185 | ||
186 | #define UNEXEC unexmacosx.o | |
187 | ||
188 | #define START_FILES pre-crt0.o | |
189 | ||
190 | /* start_of_text isn't actually used, so make it compile without error. */ | |
191 | #define TEXT_START (0) | |
192 | ||
193 | /* This seems to be right for end_of_text, but it may not be used anyway. */ | |
194 | #define TEXT_END get_etext() | |
195 | ||
196 | /* This seems to be right for end_of_data, but it may not be used anyway. */ | |
197 | #define DATA_END get_edata() | |
198 | ||
199 | /* Definitions for how to compile & link. */ | |
200 | ||
edfda783 AR |
201 | /* This is for the Carbon port. Under the NeXTstep port, this is still picked |
202 | up during preprocessing, but is undone in config.in. */ | |
203 | #ifndef HAVE_NS | |
bb4c0e89 | 204 | #define C_SWITCH_SYSTEM -fpascal-strings -DMAC_OSX |
edfda783 AR |
205 | #endif |
206 | ||
207 | /* Link in the Carbon or AppKit lib. */ | |
208 | #ifdef HAVE_NS | |
209 | /* PENDING: lresolv is here because configure when testing #undefs res_init, | |
210 | a macro in /usr/include/resolv.h for res_9_init, not in stdc lib. */ | |
211 | #define LIBS_MACGUI -framework AppKit -lresolv | |
212 | #define SYSTEM_PURESIZE_EXTRA 200000 | |
213 | #define HEADERPAD_EXTRA 6C8 | |
214 | #else | |
215 | #define HEADERPAD_EXTRA 690 | |
e0f712ba | 216 | |
50eff40f YM |
217 | #ifdef HAVE_CARBON |
218 | ||
219 | #ifdef HAVE_AVAILABILITYMACROS_H | |
220 | #include <AvailabilityMacros.h> | |
221 | #endif | |
222 | ||
223 | /* Whether to use the Image I/O framework for reading images. */ | |
224 | #ifndef USE_MAC_IMAGE_IO | |
225 | #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040 && (MAC_OS_X_VERSION_MIN_REQUIRED >= 1040 || MAC_OS_X_VERSION_MIN_REQUIRED < 1020) | |
226 | #define USE_MAC_IMAGE_IO 1 | |
227 | #endif | |
228 | #endif | |
229 | ||
230 | /* If the Image I/O framework is not used, fall back on QuickTime. */ | |
231 | #if USE_MAC_IMAGE_IO | |
232 | #define LIBS_IMAGE | |
233 | #else | |
234 | #define LIBS_IMAGE -framework QuickTime | |
235 | #endif | |
236 | ||
237 | #endif /* HAVE_CARBON */ | |
238 | ||
640a0770 ST |
239 | /* Link in the Carbon lib. */ |
240 | #ifdef HAVE_CARBON | |
edfda783 | 241 | #define LIBS_MACGUI -framework Carbon LIBS_IMAGE |
640a0770 | 242 | #else |
edfda783 AR |
243 | #define LIBS_MACGUI |
244 | #endif /* !HAVE_CARBON */ | |
245 | #endif /* !HAVE_NS */ | |
640a0770 ST |
246 | |
247 | /* The -headerpad option tells ld (see man page) to leave room at the | |
248 | end of the header for adding load commands. Needed for dumping. | |
249 | 0x690 is the total size of 30 segment load commands (at 56 | |
edfda783 AR |
250 | each); under Cocoa 31 commands are required. */ |
251 | #define LD_SWITCH_SYSTEM_TEMACS -prebind LIBS_MACGUI -Xlinker -headerpad -Xlinker HEADERPAD_EXTRA | |
e0f712ba AC |
252 | |
253 | #define C_SWITCH_SYSTEM_TEMACS -Dtemacs | |
254 | ||
f00691a3 AC |
255 | /* The ncurses library has been moved out of the System framework in |
256 | Mac OS X 10.2. So if ./configure detects it, set the command-line | |
257 | option to use it. */ | |
258 | #ifdef HAVE_LIBNCURSES | |
259 | #define LIBS_TERMCAP -lncurses | |
ad8d730c AC |
260 | /* This prevents crashes when running Emacs in Terminal.app under |
261 | 10.2. */ | |
262 | #define TERMINFO | |
f00691a3 AC |
263 | #endif |
264 | ||
e0f712ba AC |
265 | /* Link this program just by running cc. */ |
266 | #define ORDINARY_LINK | |
267 | ||
268 | /* We don't have a g library, so override the -lg LIBS_DEBUG switch. */ | |
269 | #define LIBS_DEBUG | |
270 | ||
271 | /* Adding -lm confuses the dynamic linker, so omit it. */ | |
272 | #define LIB_MATH | |
273 | ||
274 | /* Tell src/Makefile.in to create files in the Mac OS X application | |
275 | bundle mac/Emacs.app. */ | |
9794a8cd | 276 | #ifdef HAVE_CARBON |
e0f712ba | 277 | #define OTHER_FILES macosx-app |
9794a8cd | 278 | #endif |
e0f712ba | 279 | |
edfda783 AR |
280 | /* PENDING: can this target be specified in a clearer way? */ |
281 | #ifdef HAVE_NS | |
282 | #define OTHER_FILES ns-app | |
283 | #endif | |
284 | ||
e0f712ba AC |
285 | |
286 | /* Define the following so emacs symbols will not conflict with those | |
287 | in the System framework. Otherwise -prebind will not work. */ | |
288 | ||
289 | /* Do not define abort in emacs.c. */ | |
290 | #define NO_ABORT | |
291 | ||
292 | /* Do not define matherr in floatfns.c. */ | |
293 | #define NO_MATHERR | |
294 | ||
295 | ||
511ca371 AC |
296 | /* The following solves the problem that Emacs hangs when evaluating |
297 | (make-comint "test0" "/nodir/nofile" nil "") when /nodir/nofile | |
298 | does not exist. */ | |
299 | #undef HAVE_WORKING_VFORK | |
300 | #define vfork fork | |
a7a4eb95 YM |
301 | |
302 | /* Don't close pty in process.c to make it as controlling terminal. | |
303 | It is already a controlling terminal of subprocess, because we did | |
304 | ioctl TIOCSCTTY. */ | |
5cb724f0 | 305 | #define DONT_REOPEN_PTY |
09740ad8 | 306 | |
e0f712ba AC |
307 | #ifdef temacs |
308 | #define malloc unexec_malloc | |
309 | #define realloc unexec_realloc | |
310 | #define free unexec_free | |
311 | #endif | |
8030369c | 312 | |
7a262394 SM |
313 | /* This makes create_process in process.c save and restore signal |
314 | handlers correctly. Suggested by Nozomu Ando.*/ | |
315 | #define POSIX_SIGNALS | |
316 | ||
8030369c AC |
317 | /* Reroute calls to SELECT to the version defined in mac.c to fix the |
318 | problem of Emacs requiring an extra return to be typed to start | |
319 | working when started from the command line. */ | |
a6311b2f | 320 | #if defined (HAVE_CARBON) && (defined (emacs) || defined (temacs)) |
8030369c AC |
321 | #define select sys_select |
322 | #endif | |
ab5796a9 | 323 | |
3f080e4e AC |
324 | /* Use the GC_MAKE_GCPROS_NOOPS (see lisp.h) method for marking the |
325 | stack. */ | |
326 | #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS | |
327 | ||
ab5796a9 MB |
328 | /* arch-tag: 481d443d-4f89-43ea-b5fb-49706d95fa41 |
329 | (do not change this comment) */ |