mac/inc/s-mac.h

   1 /* Handcrafted s-mac.h file for building GNU Emacs on the Macintosh.
   2    Copyright (C) 1999, 2000 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Emacs.
   5
   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)
   9 any later version.
  10
  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.
  15
  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.  */
  20
  21 /* Contributed by Andrew Choi (akochoi@users.sourceforge.net).  */
  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 /* #define BSD4_3 */
  36 /* #define BSD_SYSTEM */
  37 /* #define VMS */
  38
  39 /* SYSTEM_TYPE should indicate the kind of system you are using.
  40  It sets the Lisp variable system-type.  */
  41
  42 #define SYSTEM_TYPE "macos"
  43
  44 /* NOMULTIPLEJOBS should be defined if your system's shell
  45  does not have "job control" (the ability to stop a program,
  46  run some other program, then continue the first one).  */
  47
  48 #define NOMULTIPLEJOBS
  49
  50 /* Emacs can read input using SIGIO and buffering characters itself,
  51    or using CBREAK mode and making C-g cause SIGINT.
  52    The choice is controlled by the variable interrupt_input.
  53
  54    Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
  55
  56    Emacs uses the presence or absence of the SIGIO macro to indicate
  57    whether or not signal-driven I/O is possible.  It uses
  58    INTERRUPT_INPUT to decide whether to use it by default.
  59
  60    SIGIO can be used only on systems that implement it (4.2 and 4.3).
  61    CBREAK mode has two disadvantages
  62      1) At least in 4.2, it is impossible to handle the Meta key properly.
  63         I hear that in system V this problem does not exist.
  64      2) Control-G causes output to be discarded.
  65         I do not know whether this can be fixed in system V.
  66
  67    Another method of doing input is planned but not implemented.
  68    It would have Emacs fork off a separate process
  69    to read the input and send it to the true Emacs process
  70    through a pipe. */
  71
  72 /* #define INTERRUPT_INPUT */
  73
  74 /* Letter to use in finding device name of first pty,
  75   if system supports pty's.  'a' means it is /dev/ptya0  */
  76
  77 /* #define FIRST_PTY_LETTER 'a' */
  78
  79 /*
  80  *      Define HAVE_TERMIOS if the system provides POSIX-style
  81  *      functions and macros for terminal control.
  82  *
  83  *      Define HAVE_TERMIO if the system provides sysV-style ioctls
  84  *      for terminal control.
  85  *
  86  *      Do not define both.  HAVE_TERMIOS is preferred, if it is
  87  *      supported on your system.
  88  */
  89
  90 /* #define HAVE_TERMIOS */
  91 #define HAVE_TERMIO
  92
  93 /*
  94  *      Define HAVE_PTYS if the system supports pty devices.
  95  */
  96
  97 /* #define HAVE_PTYS */
  98
  99 /*
 100  *      Define NONSYSTEM_DIR_LIBRARY to make Emacs emulate
 101  *      The 4.2 opendir, etc., library functions.
 102  */
 103
 104 /* #define NONSYSTEM_DIR_LIBRARY */
 105
 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
 118 /* If your system uses COFF (Common Object File Format) then define the
 119    preprocessor symbol "COFF". */
 120
 121 /* #define COFF */
 122
 123 /* define MAIL_USE_FLOCK if the mailer uses flock
 124    to interlock access to /usr/spool/mail/$USER.
 125    The alternative is that a lock file named
 126    /usr/spool/mail/$USER.lock.  */
 127
 128 /* #define MAIL_USE_FLOCK */
 129
 130 /* Define CLASH_DETECTION if you want lock files to be written
 131    so that Emacs can tell instantly when you try to modify
 132    a file that someone else has modified in his Emacs.  */
 133
 134 /* #define CLASH_DETECTION */
 135
 136 /* Define this if your operating system declares signal handlers to
 137    have a type other than the usual.  `The usual' is `void' for ANSI C
 138    systems (i.e. when the __STDC__ macro is defined), and `int' for
 139    pre-ANSI systems.  If you're using GCC on an older system, __STDC__
 140    will be defined, but the system's include files will still say that
 141    signal returns int or whatever; in situations like that, define
 142    this to be what the system's include files want.  */
 143 /* #define SIGTYPE int */
 144
 145 /* If the character used to separate elements of the executable path
 146    is not ':', #define this to be the appropriate character constant.  */
 147 /* #define SEPCHAR ':' */
 148
 149 /* ============================================================ */
 150
 151 /* Here, add any special hacks needed
 152    to make Emacs work on this system.  For example,
 153    you might define certain system call names that don't
 154    exist on your system, or that do different things on
 155    your system and must be used only through an encapsulation
 156    (Which you should place, by convention, in sysdep.c).  */
 157
 158 /* Some compilers tend to put everything declared static
 159    into the initialized data area, which becomes pure after dumping Emacs.
 160    On these systems, you must #define static as nothing to foil this.
 161    Note that emacs carefully avoids static vars inside functions.  */
 162
 163 /* #define static */
 164
 165 /* ============================================================ */
 166
 167 /* After adding support for a new system, modify the large case
 168    statement in the `configure' script to recognize reasonable
 169    configuration names, and add a description of the system to
 170    `etc/MACHINES'.
 171
 172    If you've just fixed a problem in an existing configuration file,
 173    you should also check `etc/MACHINES' to make sure its descriptions
 174    of known problems in that configuration should be updated.  */
 175
 176 #ifdef __MRC__
 177 #define __signal_max SIGTERM /* largest one in signal.h */
 178 #endif
 179
 180 #define SIGHUP (__signal_max+1)
 181 #define SIGQUIT (__signal_max+2)
 182 #define SIGTRAP (__signal_max+3)
 183 #define SIGKILL (__signal_max+4)
 184 #define SIGALRM (__signal_max+5)
 185 #define SIGPIPE (__signal_max+6)
 186 #define NSIG (__signal_max+6)
 187
 188 #ifdef __MRC__
 189 #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_ptr - (FILE)->_base)
 190 #elif __MWERKS__
 191 #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->buffer_ptr - (FILE)->buffer)
 192 #endif
 193
 194 #ifdef __MWERKS__
 195 #include <errno.h>
 196 #ifndef ENOENT
 197 #define ENOENT 100
 198 #endif
 199 #ifndef EXDEV
 200 #define EXDEV 101
 201 #endif
 202 #ifndef EEXIST
 203 #define EEXIST 102
 204 #endif
 205 #ifndef EINTR
 206 #define EINTR 102
 207 #endif
 208 #ifndef EACCES
 209 #define EACCES 103
 210 #endif
 211 #ifndef ENOTDIR
 212 #define ENOTDIR 104
 213 #endif
 214 #ifndef EIO
 215 #define EIO 105
 216 #endif
 217 #ifndef EBADF
 218 #define EBADF 106
 219 #endif
 220 #endif
 221
 222 #define SYSTEM_PURESIZE_EXTRA (200*1024)
 223
 224 /* don't know what this will do, but sysdep.c needs it */
 225 #define DATA_START 0
 226
 227 /* Limited by CW's 32K limit on local data! */
 228 #define READ_BUF_SIZE (8 << 10)
 229
 230 #include <utsname.h>
 231 void read_input_waiting ();
 232
 233 /* #define GETTIMEOFDAY_ONE_ARGUMENT */
 234
 235 #define SYSV_SYSTEM_DIR
 236
 237 #define SYSTEM_MALLOC
 238
 239 /* Constants such as O_RDONLY are defined in fcntl.h.  Best solution is
 240    really to patch individual files to include it: callproc.c, doc.c,
 241    fileio.c, getloadavg.c, lread.c, and termcap.c.  */
 242 #include <fcntl.h>
 243
 244 #define _setjmp setjmp
 245 #define _longjmp longjmp
 246
 247 #define _exit exit
 248
 249 #define main emacs_main
 250
 251 /* Include this here so it won't be include again when #include in emacs
 252    sources.  Then undefine the macro definitions in it for unlink, read,
 253    write, access, and rmdir.  */
 254 #ifdef __MWERKS__
 255 #include <unistd.h>
 256 #endif
 257
 258 #undef unlink
 259 #define unlink sys_unlink
 260 #undef read
 261 #define read sys_read
 262 #undef write
 263 #define write sys_write
 264 #undef access
 265 #define access sys_access
 266 #undef rmdir
 267 #define rmdir sys_rmdir
 268
 269 #define open sys_open
 270 #define creat sys_creat
 271
 272 #define rename sys_rename
 273 #define fopen sys_fopen
 274 #define signal sys_signal
 275
 276 #define gmtime sys_gmtime
 277 #define localtime sys_localtime
 278 #define ctime sys_ctime
 279 #define time sys_time
 280
 281 #ifndef bcmp
 282 #define bcmp(s1, s2, n) memcmp ((s1), (s2), (n))
 283 #endif
 284 #ifndef bcopy
 285 #define bcopy(s, d, n)  memcpy ((d), (s), (n))
 286 #endif
 287 #ifndef bzero
 288 #define bzero(s, n)     memset ((s), 0, (n))
 289 #endif
 290
 291 extern char *index (const char *, int);
 292
 293 /* MPW strftime broken for "%p" format */
 294 #ifdef __MRC__
 295 #define strftime sys_strftime
 296 #endif
 297
 298 #include <time.h>
 299 /* Editfns.c includes types.h which indirectly includes time.h before config.h.
 300    So gmtime (localtime) is defined and not sys_gmtime (sys_localtime).  Define
 301    here explicitly.  */
 302 extern struct tm *sys_gmtime (const time_t *);
 303 extern struct tm *sys_localtime (const time_t *);
 304 extern char *sys_ctime (const time_t *);
 305 extern time_t sys_time (time_t *);
 306
 307 /* Emacs.c includes signal.h before config.h.  Define this to make it happy.  */
 308 #ifdef __MRC__
 309 #include <signal.h>
 310 extern __sigfun sys_signal (int signal_num, __sigfun signal_func);
 311 #elif __MWERKS__
 312 #include <signal.h>
 313 extern __signal_func_ptr sys_signal (int signal_num, __signal_func_ptr signal_func);
 314 #endif
 315
 316 extern double atof (const char *);
 317
 318 #define volatile
 319
 320 #define SYMS_SYSTEM syms_of_mac()