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. 4 5This file is part of GNU Emacs. 6 7GNU Emacs is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 2, or (at your option) 10any later version. 11 12GNU Emacs is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with GNU Emacs; see the file COPYING. If not, write to 19the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 20Boston, MA 02110-1301, USA. */ 21 22 23/* 24 * Define symbols to identify the version of Unix this is. 25 * Define all the symbols that apply correctly. 26 */ 27 28/* #define UNIPLUS */ 29/* #define USG5 */ 30/* #define USG */ 31/* #define HPUX */ 32/* #define UMAX */ 33/* #define BSD4_1 */ 34#define BSD4_2 35/* BSD4_3 and BSD4_4 are already defined in sys/param.h */ 36/* #define BSD4_3 */ 37/* #define BSD4_4 */ 38/* sigpause is POSIX, undef BSD_SYSTEM??*/ 39#define BSD_SYSTEM 40/* #define VMS */ 41 42#if 0 /* Don't define DARWIN on Mac OS X because CoreFoundation.h uses 43 it to distinguish Mac OS X from bare Darwin. */ 44#ifndef DARWIN 45#define DARWIN 1 46#endif 47#endif 48 49/* MAC_OS is used to conditionally compile code common to both MAC_OS8 50 and MAC_OSX. */ 51#ifdef MAC_OSX 52#ifdef HAVE_CARBON 53#define MAC_OS 54#endif 55#endif 56 57/* SYSTEM_TYPE should indicate the kind of system you are using. 58 It sets the Lisp variable system-type. */ 59 60#define SYSTEM_TYPE "darwin" 61 62/* NOMULTIPLEJOBS should be defined if your system's shell 63 does not have "job control" (the ability to stop a program, 64 run some other program, then continue the first one). */ 65 66/* #define NOMULTIPLEJOBS */ 67 68/* Emacs can read input using SIGIO and buffering characters itself, 69 or using CBREAK mode and making C-g cause SIGINT. 70 The choice is controlled by the variable interrupt_input. 71 72 Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO) 73 74 Emacs uses the presence or absence of the SIGIO and BROKEN_SIGIO macros 75 to indicate whether or not signal-driven I/O is possible. It uses 76 INTERRUPT_INPUT to decide whether to use it by default. 77 78 SIGIO can be used only on systems that implement it (4.2 and 4.3). 79 CBREAK mode has two disadvantages 80 1) At least in 4.2, it is impossible to handle the Meta key properly. 81 I hear that in system V this problem does not exist. 82 2) Control-G causes output to be discarded. 83 I do not know whether this can be fixed in system V. 84 85 Another method of doing input is planned but not implemented. 86 It would have Emacs fork off a separate process 87 to read the input and send it to the true Emacs process 88 through a pipe. */ 89 90#define INTERRUPT_INPUT 91 92/* Letter to use in finding device name of first pty, 93 if system supports pty's. 'a' means it is /dev/ptya0 */ 94 95#define FIRST_PTY_LETTER 'p' 96 97/* 98 * Define HAVE_TERMIOS if the system provides POSIX-style 99 * functions and macros for terminal control. 100 * 101 * Define HAVE_TERMIO if the system provides sysV-style ioctls 102 * for terminal control. 103 * 104 * Do not define both. HAVE_TERMIOS is preferred, if it is 105 * supported on your system. 106 */ 107 108#define HAVE_TERMIOS 109/* #define HAVE_TERMIO */ 110 111#define NO_TERMIO 112 113/* 114 * Define HAVE_PTYS if the system supports pty devices. 115 * Note: PTYs are broken on darwin <6. Use at your own risk. 116 */ 117 118#define HAVE_PTYS 119 120/** 121 * PTYs only work correctly on Darwin 7 or higher. So make the 122 * default for process-connection-type dependent on the kernel 123 * version. 124 */ 125#define MIN_PTY_KERNEL_VERSION '7' 126 127/* 128 * Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate 129 * The 4.2 opendir, etc., library functions. 130 */ 131 132/* #define NONSYSTEM_DIR_LIBRARY */ 133 134/* Define this symbol if your system has the functions bcopy, etc. */ 135 136#define BSTRING 137 138/* subprocesses should be defined if you want to 139 have code for asynchronous subprocesses 140 (as used in M-x compile and M-x shell). 141 This is generally OS dependent, and not supported 142 under most USG systems. */ 143 144#define subprocesses 145 146/* If your system uses COFF (Common Object File Format) then define the 147 preprocessor symbol "COFF". */ 148 149/* #define COFF */ 150 151/* define MAIL_USE_FLOCK if the mailer uses flock 152 to interlock access to /usr/spool/mail/$USER. 153 The alternative is that a lock file named 154 /usr/spool/mail/$USER.lock. */ 155 156#define MAIL_USE_FLOCK 157 158/* Define CLASH_DETECTION if you want lock files to be written 159 so that Emacs can tell instantly when you try to modify 160 a file that someone else has modified in his Emacs. */ 161 162#define CLASH_DETECTION 163 164/* Define this if your operating system declares signal handlers to 165 have a type other than the usual. `The usual' is `void' for ANSI C 166 systems (i.e. when the __STDC__ macro is defined), and `int' for 167 pre-ANSI systems. If you're using GCC on an older system, __STDC__ 168 will be defined, but the system's include files will still say that 169 signal returns int or whatever; in situations like that, define 170 this to be what the system's include files want. */ 171/* #define SIGTYPE int */ 172 173/* If the character used to separate elements of the executable path 174 is not ':', #define this to be the appropriate character constant. */ 175/* #define SEPCHAR ':' */ 176 177/* Define this if the system can use mmap for buffer text allocation. */ 178/* #define USE_MMAP_FOR_BUFFERS 1 */ 179 180/* ============================================================ */ 181 182/* Here, add any special hacks needed 183 to make Emacs work on this system. For example, 184 you might define certain system call names that don't 185 exist on your system, or that do different things on 186 your system and must be used only through an encapsulation 187 (Which you should place, by convention, in sysdep.c). */ 188 189/* Some compilers tend to put everything declared static 190 into the initialized data area, which becomes pure after dumping Emacs. 191 On these systems, you must #define static as nothing to foil this. 192 Note that emacs carefully avoids static vars inside functions. */ 193 194/* #define static */ 195 196/* If the system's imake configuration file defines `NeedWidePrototypes' 197 as `NO', we must define NARROWPROTO manually. Such a define is 198 generated in the Makefile generated by `xmkmf'. If we don't 199 define NARROWPROTO, we will see the wrong function prototypes 200 for X functions taking float or double parameters. */ 201 202/* #define NARROWPROTO 1 */ 203 204/* ============================================================ */ 205 206/* After adding support for a new system, modify the large case 207 statement in the `configure' script to recognize reasonable 208 configuration names, and add a description of the system to 209 `etc/MACHINES'. 210 211 If you've just fixed a problem in an existing configuration file, 212 you should also check `etc/MACHINES' to make sure its descriptions 213 of known problems in that configuration should be updated. */ 214 215 216/* Avoid the use of the name init_process (process.c) because it is 217 also the name of a Mach system call. */ 218#define init_process emacs_init_process 219 220/* Used in dispnew.c. Copied from freebsd.h. */ 221#define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_p - (FILE)->_bf._base) 222 223/* System uses OXTABS instead of the expected TAB3. (Copied from 224 bsd386.h.) */ 225#define TAB3 OXTABS 226 227/* Darwin ld insists on the use of malloc routines in the System 228 framework. */ 229#define SYSTEM_MALLOC 230 231/* Define HAVE_SOCKETS if system supports 4.2-compatible sockets. */ 232#define HAVE_SOCKETS 233 234/* In Carbon, asynchronous I/O (using SIGIO) can't be used for window 235 events because they don't come from sockets, even though it works 236 fine on tty's. */ 237#ifdef HAVE_CARBON 238#define NO_SOCK_SIGIO 239#endif 240 241/* Extra initialization calls in main for Mac OS X system type. */ 242#ifdef HAVE_CARBON 243#define SYMS_SYSTEM syms_of_mac() 244#endif 245 246/* Definitions for how to dump. Copied from nextstep.h. */ 247 248#define UNEXEC unexmacosx.o 249 250#define START_FILES pre-crt0.o 251 252/* start_of_text isn't actually used, so make it compile without error. */ 253#define TEXT_START (0) 254 255/* This seems to be right for end_of_text, but it may not be used anyway. */ 256#define TEXT_END get_etext() 257 258/* This seems to be right for end_of_data, but it may not be used anyway. */ 259#define DATA_END get_edata() 260 261/* Definitions for how to compile & link. */ 262 263/* Indicate that we are compiling for Mac OS X. */ 264#define C_SWITCH_SYSTEM -DMAC_OSX 265 266/* Link in the Carbon lib. */ 267#ifdef HAVE_CARBON 268#define LIBS_CARBON -framework Carbon -framework QuickTime -framework CoreFoundation 269#else 270#define LIBS_CARBON 271#endif 272 273/* The -headerpad option tells ld (see man page) to leave room at the 274 end of the header for adding load commands. Needed for dumping. 275 0x690 is the total size of 30 segment load commands (at 56 276 each). */ 277/* headerpad now set in encompassing Makefile */ 278#define LD_SWITCH_SYSTEM_TEMACS -prebind LIBS_CARBON 279 280#define C_SWITCH_SYSTEM_TEMACS -Dtemacs 281 282/* The ncurses library has been moved out of the System framework in 283 Mac OS X 10.2. So if ./configure detects it, set the command-line 284 option to use it. */ 285#ifdef HAVE_LIBNCURSES 286#define LIBS_TERMCAP -lncurses 287/* This prevents crashes when running Emacs in Terminal.app under 288 10.2. */ 289#define TERMINFO 290#endif 291 292/* Link this program just by running cc. */ 293#define ORDINARY_LINK 294 295/* We don't have a g library, so override the -lg LIBS_DEBUG switch. */ 296#define LIBS_DEBUG 297 298/* Adding -lm confuses the dynamic linker, so omit it. */ 299#define LIB_MATH 300 301/* Tell src/Makefile.in to create files in the Mac OS X application 302 bundle mac/Emacs.app. */ 303#ifdef HAVE_CARBON 304#define OTHER_FILES macosx-app 305#endif 306 307 308/* Define the following so emacs symbols will not conflict with those 309 in the System framework. Otherwise -prebind will not work. */ 310 311/* Do not define abort in emacs.c. */ 312#define NO_ABORT 313 314/* Do not define matherr in floatfns.c. */ 315#define NO_MATHERR 316 317 318/* The following solves the problem that Emacs hangs when evaluating 319 (make-comint "test0" "/nodir/nofile" nil "") when /nodir/nofile 320 does not exist. */ 321#undef HAVE_WORKING_VFORK 322#define vfork fork 323 324/* Don't close pty in process.c to make it as controlling terminal. 325 It is already a controlling terminal of subprocess, because we did 326 ioctl TIOCSCTTY. */ 327#define DONT_REOPEN_PTY 328 329#ifdef temacs 330#define malloc unexec_malloc 331#define realloc unexec_realloc 332#define free unexec_free 333#endif 334 335/* This makes create_process in process.c save and restore signal 336 handlers correctly. Suggested by Nozomu Ando.*/ 337#define POSIX_SIGNALS 338 339/* Reroute calls to SELECT to the version defined in mac.c to fix the 340 problem of Emacs requiring an extra return to be typed to start 341 working when started from the command line. */ 342#if defined (HAVE_CARBON) && (defined (emacs) || defined (temacs)) 343#define select sys_select 344#endif 345 346/* Use the GC_MAKE_GCPROS_NOOPS (see lisp.h) method for marking the 347 stack. */ 348#define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS 349 350/* arch-tag: 481d443d-4f89-43ea-b5fb-49706d95fa41 351 (do not change this comment) */ 352