mac/inc/s-mac.h

   1 /* Handcrafted s-mac.h file for building GNU Emacs on Mac OS 9.
   2    Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004,
   3       2005, 2006, 2007  Free Software Foundation, Inc.
   4
   5 This file is part of GNU Emacs.
   6
   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)
  10 any later version.
  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
  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.  */
  21
  22 /* Contributed by Andrew Choi (akochoi@mac.com).  */
  23
  24 /*
  25  *      Define symbols to identify the version of Unix this is.
  26  *      Define all the symbols that apply correctly.
  27  */
  28
  29 /* #define UNIPLUS */
  30 /* #define USG5 */
  31 /* #define USG */
  32 /* #define HPUX */
  33 /* #define UMAX */
  34 /* #define BSD4_1 */
  35 /* #define BSD4_2 */
  36 /* #define BSD4_3 */
  37 /* #define BSD_SYSTEM */
  38 /* #define VMS */
  39
  40 /* SYSTEM_TYPE should indicate the kind of system you are using.
  41  It sets the Lisp variable system-type.  */
  42
  43 #define SYSTEM_TYPE "macos"
  44
  45 /* NOMULTIPLEJOBS should be defined if your system's shell
  46  does not have "job control" (the ability to stop a program,
  47  run some other program, then continue the first one).  */
  48
  49 #define NOMULTIPLEJOBS
  50
  51 /* Emacs can read input using SIGIO and buffering characters itself,
  52    or using CBREAK mode and making C-g cause SIGINT.
  53    The choice is controlled by the variable interrupt_input.
  54
  55    Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
  56
  57    Emacs uses the presence or absence of the SIGIO and BROKEN_SIGIO macros
  58    to indicate whether or not signal-driven I/O is possible.  It uses
  59    INTERRUPT_INPUT to decide whether to use it by default.
  60
  61    SIGIO can be used only on systems that implement it (4.2 and 4.3).
  62    CBREAK mode has two disadvantages
  63      1) At least in 4.2, it is impossible to handle the Meta key properly.
  64         I hear that in system V this problem does not exist.
  65      2) Control-G causes output to be discarded.
  66         I do not know whether this can be fixed in system V.
  67
  68    Another method of doing input is planned but not implemented.
  69    It would have Emacs fork off a separate process
  70    to read the input and send it to the true Emacs process
  71    through a pipe. */
  72
  73 /* #define INTERRUPT_INPUT */
  74
  75 /* Letter to use in finding device name of first pty,
  76   if system supports pty's.  'a' means it is /dev/ptya0  */
  77
  78 /* #define FIRST_PTY_LETTER 'a' */
  79
  80 /*
  81  *      Define HAVE_TERMIOS if the system provides POSIX-style
  82  *      functions and macros for terminal control.
  83  *
  84  *      Define HAVE_TERMIO if the system provides sysV-style ioctls
  85  *      for terminal control.
  86  *
  87  *      Do not define both.  HAVE_TERMIOS is preferred, if it is
  88  *      supported on your system.
  89  */
  90
  91 /* #define HAVE_TERMIOS */
  92 #define HAVE_TERMIO
  93
  94 /*
  95  *      Define HAVE_PTYS if the system supports pty devices.
  96  */
  97
  98 /* #define HAVE_PTYS */
  99
 100 /*
 101  *      Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
 102  *      The 4.2 opendir, etc., library functions.
 103  */
 104
 105 /* #define NONSYSTEM_DIR_LIBRARY */
 106
 107 /* Define this symbol if your system has the functions bcopy, etc. */
 108
 109 /* #define BSTRING */
 110
 111 /* subprocesses should be defined if you want to
 112    have code for asynchronous subprocesses
 113    (as used in M-x compile and M-x shell).
 114    This is generally OS dependent, and not supported
 115    under most USG systems. */
 116
 117 /* #define subprocesses */
 118
 119 /* If your system uses COFF (Common Object File Format) then define the
 120    preprocessor symbol "COFF". */
 121
 122 /* #define COFF */
 123
 124 /* define MAIL_USE_FLOCK if the mailer uses flock
 125    to interlock access to /usr/spool/mail/$USER.
 126    The alternative is that a lock file named
 127    /usr/spool/mail/$USER.lock.  */
 128
 129 /* #define MAIL_USE_FLOCK */
 130
 131 /* Define CLASH_DETECTION if you want lock files to be written
 132    so that Emacs can tell instantly when you try to modify
 133    a file that someone else has modified in his Emacs.  */
 134
 135 /* #define CLASH_DETECTION */
 136
 137 /* Define this if your operating system declares signal handlers to
 138    have a type other than the usual.  `The usual' is `void' for ANSI C
 139    systems (i.e. when the __STDC__ macro is defined), and `int' for
 140    pre-ANSI systems.  If you're using GCC on an older system, __STDC__
 141    will be defined, but the system's include files will still say that
 142    signal returns int or whatever; in situations like that, define
 143    this to be what the system's include files want.  */
 144 /* #define SIGTYPE int */
 145
 146 /* If the character used to separate elements of the executable path
 147    is not ':', #define this to be the appropriate character constant.  */
 148 /* #define SEPCHAR ':' */
 149
 150 /* Define this if the system can use mmap for buffer text allocation.  */
 151 /* #define USE_MMAP_FOR_BUFFERS 1 */
 152
 153 /* ============================================================ */
 154
 155 /* Here, add any special hacks needed
 156    to make Emacs work on this system.  For example,
 157    you might define certain system call names that don't
 158    exist on your system, or that do different things on
 159    your system and must be used only through an encapsulation
 160    (Which you should place, by convention, in sysdep.c).  */
 161
 162 /* Some compilers tend to put everything declared static
 163    into the initialized data area, which becomes pure after dumping Emacs.
 164    On these systems, you must #define static as nothing to foil this.
 165    Note that emacs carefully avoids static vars inside functions.  */
 166
 167 /* #define static */
 168
 169 /* If the system's imake configuration file defines `NeedWidePrototypes'
 170    as `NO', we must define NARROWPROTO manually.  Such a define is
 171    generated in the Makefile generated by `xmkmf'.  If we don't
 172    define NARROWPROTO, we will see the wrong function prototypes
 173    for X functions taking float or double parameters.  */
 174
 175 /*  #define NARROWPROTO 1 */
 176
 177 /* ============================================================ */
 178
 179 /* After adding support for a new system, modify the large case
 180    statement in the `configure' script to recognize reasonable
 181    configuration names, and add a description of the system to
 182    `etc/MACHINES'.
 183
 184    If you've just fixed a problem in an existing configuration file,
 185    you should also check `etc/MACHINES' to make sure its descriptions
 186    of known problems in that configuration should be updated.  */
 187
 188 #ifdef __MRC__
 189 /* MrC predefines signal numbers as powers of 2.  */
 190 #define sigmask(no) (((no) & (no) - 1) ? 1L << ((no) - 1) : (no))
 191 #define __signal_max 8        /* There's enough room for the following
 192                                  signals between 8 and 16, and the
 193                                  maximum predefined one (32) is less
 194                                  than 8th power of 2.  */
 195 #endif
 196
 197 #define SIGHUP (__signal_max+1)
 198 #define SIGQUIT (__signal_max+2)
 199 #define SIGTRAP (__signal_max+3)
 200 #define SIGKILL (__signal_max+4)
 201 #define SIGALRM (__signal_max+5)
 202 #define SIGPIPE (__signal_max+6)
 203
 204 #ifdef __MRC__
 205 #define NSIG SIGTERM  /* largest one in signal.h */
 206 #else
 207 #define NSIG (__signal_max+6)
 208 #endif
 209
 210 #ifdef __MRC__
 211 #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_ptr - (FILE)->_base)
 212 #elif __MWERKS__
 213 #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->buffer_ptr - (FILE)->buffer)
 214 #endif
 215
 216 #ifdef __MWERKS__
 217 #include <errno.h>
 218 #ifndef ENOENT
 219 #define ENOENT 100
 220 #endif
 221 #ifndef EXDEV
 222 #define EXDEV 101
 223 #endif
 224 #ifndef EEXIST
 225 #define EEXIST 102
 226 #endif
 227 #ifndef EINTR
 228 #define EINTR 102
 229 #endif
 230 #ifndef EACCES
 231 #define EACCES 103
 232 #endif
 233 #ifndef ENOTDIR
 234 #define ENOTDIR 104
 235 #endif
 236 #ifndef EIO
 237 #define EIO 105
 238 #endif
 239 #ifndef EBADF
 240 #define EBADF 106
 241 #endif
 242 #endif
 243
 244 #define SYSTEM_PURESIZE_EXTRA (200*1024)
 245
 246 /* don't know what this will do, but sysdep.c needs it */
 247 #define DATA_START 0
 248
 249 /* Limited by CW's 32K limit on local data! */
 250 #define READ_BUF_SIZE (8 << 10)
 251
 252 #include <utsname.h>
 253
 254 #define SYSV_SYSTEM_DIR
 255
 256 #define SYSTEM_MALLOC
 257
 258 #define _setjmp setjmp
 259 #define _longjmp longjmp
 260
 261 #define _exit exit
 262
 263 #define main emacs_main
 264
 265 /* Include this here so it won't be include again when #include in emacs
 266    sources.  Then undefine the macro definitions in it for unlink, read,
 267    write, access, and rmdir.  */
 268 #ifdef __MWERKS__
 269 #include <unistd.h>
 270 #endif
 271
 272 #ifndef X_OK
 273 #define X_OK 01
 274 #endif
 275
 276 #undef unlink
 277 #define unlink sys_unlink
 278 #undef read
 279 #define read sys_read
 280 #undef write
 281 #define write sys_write
 282 #undef access
 283 #define access sys_access
 284 #undef rmdir
 285 #define rmdir sys_rmdir
 286
 287 #define open sys_open
 288 #define creat sys_creat
 289
 290 #define rename sys_rename
 291 #define fopen sys_fopen
 292 #define signal sys_signal
 293
 294 #define gmtime sys_gmtime
 295 #define localtime sys_localtime
 296 #define ctime sys_ctime
 297 #define time sys_time
 298
 299 #define index strchr
 300 #define rindex strrchr
 301
 302 #define PTR POINTER_TYPE *      /* For strftime.c.  */
 303
 304 #define SYMS_SYSTEM syms_of_mac()
 305
 306 #ifdef USE_LSB_TAG
 307 #ifdef __MRC__
 308 #define DECL_ALIGN(type, var) type var
 309 #endif
 310 #endif
 311
 312 /* Use the GC_MAKE_GCPROS_NOOPS (see lisp.h) method for marking the
 313    stack.  */
 314 #define GC_MARK_STACK   GC_MAKE_GCPROS_NOOPS
 315
 316 /* arch-tag: 6a941c4b-a419-4d25-80ac-9335053e58b2
 317    (do not change this comment) */