* emacs.c (main): Call syms_of_frame unconditionally. When
[bpt/emacs.git] / src / emacs.c
1 /* Fully extensible Emacs, running on Unix, intended for GNU.
2 Copyright (C) 1985, 1986, 1987, 1992 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 1, 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
19
20
21 #include <signal.h>
22 #include <errno.h>
23
24 #include "config.h"
25 #include <stdio.h>
26
27 #include <sys/types.h>
28 #include <sys/file.h>
29
30 #ifdef VMS
31 #include <ssdef.h>
32 #endif
33
34 #ifdef USG5
35 #include <fcntl.h>
36 #endif
37
38 #ifdef BSD
39 #include <sys/ioctl.h>
40 #endif
41
42 #ifdef HAVE_TERMIOS
43 #include <termios.h>
44 #endif
45
46 #ifdef APOLLO
47 #ifndef APOLLO_SR10
48 #include <default_acl.h>
49 #endif
50 #endif
51
52 #include "lisp.h"
53 #include "commands.h"
54
55 #include "systerm.h"
56
57 #ifndef O_RDWR
58 #define O_RDWR 2
59 #endif
60
61 #define PRIO_PROCESS 0
62
63 /* Command line args from shell, as list of strings */
64 Lisp_Object Vcommand_line_args;
65
66 /* Hook run by `kill-emacs' before it does really anything. */
67 Lisp_Object Vkill_emacs_hook;
68
69 /* Set nonzero after Emacs has started up the first time.
70 Prevents reinitialization of the Lisp world and keymaps
71 on subsequent starts. */
72 int initialized;
73
74 /* Variable whose value is symbol giving operating system type */
75 Lisp_Object Vsystem_type;
76
77 /* If non-zero, emacs should not attempt to use an window-specific code,
78 but instead should use the virtual terminal under which it was started */
79 int inhibit_window_system;
80
81 #ifdef HAVE_X_WINDOWS
82 /* If non-zero, -d was specified, meaning we're using some window system. */
83 int display_arg;
84 #endif
85
86 /* An address near the bottom of the stack.
87 Tells GC how to save a copy of the stack. */
88 char *stack_bottom;
89
90 #ifdef HAVE_X_WINDOWS
91 extern Lisp_Object Vwindow_system;
92 #endif /* HAVE_X_WINDOWS */
93
94 #ifdef USG_SHARED_LIBRARIES
95 /* If nonzero, this is the place to put the end of the writable segment
96 at startup. */
97
98 unsigned int bss_end = 0;
99 #endif
100
101 /* Nonzero means running Emacs without interactive terminal. */
102
103 int noninteractive;
104
105 /* Value of Lisp variable `noninteractive'.
106 Normally same as C variable `noninteractive'
107 but nothing terrible happens if user sets this one. */
108
109 int noninteractive1;
110 \f
111 /* Signal code for the fatal signal that was received */
112 int fatal_error_code;
113
114 /* Nonzero if handling a fatal error already */
115 int fatal_error_in_progress;
116
117 /* Handle bus errors, illegal instruction, etc. */
118 SIGTYPE
119 fatal_error_signal (sig)
120 int sig;
121 {
122 fatal_error_code = sig;
123 signal (sig, SIG_DFL);
124
125 /* If fatal error occurs in code below, avoid infinite recursion. */
126 if (fatal_error_in_progress)
127 kill (getpid (), fatal_error_code);
128
129 fatal_error_in_progress = 1;
130
131 /* If we are controlling the terminal, reset terminal modes */
132 #ifdef EMACS_HAVE_TTY_PGRP
133 {
134 int tpgrp;
135 if (EMACS_GET_TTY_PGRP (0, &tpgrp) != -1
136 && tpgrp == getpgrp (0))
137 {
138 reset_sys_modes ();
139 if (sig != SIGTERM)
140 fprintf (stderr, "Fatal error (%d).", sig);
141 }
142 }
143 #endif /* uses pgrp */
144
145 /* Clean up */
146 kill_buffer_processes (Qnil);
147 Fdo_auto_save (Qt, Qnil);
148
149 #ifdef CLASH_DETECTION
150 unlock_all_files ();
151 #endif /* CLASH_DETECTION */
152
153 #ifdef VMS
154 kill_vms_processes ();
155 LIB$STOP (SS$_ABORT);
156 #else
157 /* Signal the same code; this time it will really be fatal. */
158 kill (getpid (), fatal_error_code);
159 #endif /* not VMS */
160 }
161 \f
162 /* Code for dealing with Lisp access to the Unix command line */
163
164 static
165 init_cmdargs (argc, argv, skip_args)
166 int argc;
167 char **argv;
168 int skip_args;
169 {
170 register int i;
171
172 Vcommand_line_args = Qnil;
173
174 for (i = argc - 1; i >= 0; i--)
175 {
176 if (i == 0 || i > skip_args)
177 Vcommand_line_args
178 = Fcons (build_string (argv[i]), Vcommand_line_args);
179 }
180 }
181 \f
182 #ifdef VMS
183 #ifdef LINK_CRTL_SHARE
184 #ifdef SHAREABLE_LIB_BUG
185 extern noshare char **environ;
186 #endif /* SHAREABLE_LIB_BUG */
187 #endif /* LINK_CRTL_SHARE */
188 #endif /* VMS */
189
190 /* ARGSUSED */
191 main (argc, argv, envp)
192 int argc;
193 char **argv;
194 char **envp;
195 {
196 char stack_bottom_variable;
197 int skip_args = 0;
198 extern int errno;
199 extern sys_nerr;
200 extern char *sys_errlist[];
201 extern void malloc_warning ();
202
203 /* Map in shared memory, if we are using that. */
204 #ifdef HAVE_SHM
205 if (argc > 1 && !strcmp (argv[1], "-nl"))
206 {
207 map_in_data (0);
208 /* The shared memory was just restored, which clobbered this. */
209 skip_args = 1;
210 }
211 else
212 {
213 map_in_data (1);
214 /* The shared memory was just restored, which clobbered this. */
215 skip_args = 0;
216 }
217 #endif
218
219 #ifdef HAVE_X_WINDOWS
220 /* Stupid kludge to catch command-line display spec. We can't
221 handle this argument entirely in window system dependent code
222 because we don't even know which window system dependent code
223 to run until we've recognized this argument. */
224 {
225 int i;
226
227 for (i = 1; (i < argc && ! display_arg); i++)
228 if (!strcmp (argv[i], "-d"))
229 display_arg = 1;
230 }
231 #endif
232
233 #ifdef VMS
234 /* If -map specified, map the data file in */
235 if (argc > 2 && ! strcmp (argv[1], "-map"))
236 {
237 skip_args = 2;
238 mapin_data (argv[2]);
239 }
240
241 #ifdef LINK_CRTL_SHARE
242 #ifdef SHAREABLE_LIB_BUG
243 /* Bletcherous shared libraries! */
244 if (!stdin)
245 stdin = fdopen (0, "r");
246 if (!stdout)
247 stdout = fdopen (1, "w");
248 if (!stderr)
249 stderr = fdopen (2, "w");
250 if (!environ)
251 environ = envp;
252 #endif /* SHAREABLE_LIB_BUG */
253 #endif /* LINK_CRTL_SHARE */
254 #endif /* VMS */
255
256 /* Record (approximately) where the stack begins. */
257 stack_bottom = &stack_bottom_variable;
258
259 #ifdef RUN_TIME_REMAP
260 if (initialized)
261 run_time_remap (argv[0]);
262 #endif
263
264 #ifdef USG_SHARED_LIBRARIES
265 if (bss_end)
266 brk (bss_end);
267 #endif
268
269 clearerr (stdin);
270 #ifdef BSD
271 setpgrp (0, getpid ());
272 #endif
273
274 #ifdef APOLLO
275 #ifndef APOLLO_SR10
276 /* If USE_DOMAIN_ACLS environment variable exists,
277 use ACLs rather than UNIX modes. */
278 if (egetenv ("USE_DOMAIN_ACLS"))
279 default_acl (USE_DEFACL);
280 #endif
281 #endif /* APOLLO */
282
283 #ifndef SYSTEM_MALLOC
284 if (! initialized)
285 malloc_init (0, malloc_warning);
286 #endif /* not SYSTEM_MALLOC */
287
288 #ifdef HIGHPRI
289 setpriority (PRIO_PROCESS, getpid (), HIGHPRI);
290 setuid (getuid ());
291 #endif /* HIGHPRI */
292
293 #ifdef BSD
294 /* interrupt_input has trouble if we aren't in a separate process group. */
295 setpgrp (getpid (), getpid ());
296 #endif
297
298 inhibit_window_system = 0;
299
300 /* Handle the -t switch, which specifies filename to use as terminal */
301 if (skip_args + 2 < argc && !strcmp (argv[skip_args + 1], "-t"))
302 {
303 int result;
304 skip_args += 2;
305 close (0);
306 close (1);
307 result = open (argv[skip_args], O_RDWR, 2 );
308 if (result < 0)
309 {
310 char *errstring;
311
312 if (errno >= 0 && errno < sys_nerr)
313 errstring = sys_errlist[errno];
314 else
315 errstring = "undocumented error code";
316 fprintf (stderr, "emacs: %s: %s\n", argv[skip_args], errstring);
317 exit (1);
318 }
319 dup (0);
320 if (! isatty (0))
321 {
322 fprintf (stderr, "emacs: %s: not a tty\n", argv[skip_args]);
323 exit (1);
324 }
325 fprintf (stderr, "Using %s\n", argv[skip_args]);
326 #ifdef HAVE_X_WINDOWS
327 inhibit_window_system = 1; /* -t => -nw */
328 #endif
329 }
330
331 if (skip_args + 1 < argc
332 && (!strcmp (argv[skip_args + 1], "-nw")))
333 {
334 skip_args += 1;
335 inhibit_window_system = 1;
336 }
337
338 /* Handle the -batch switch, which means don't do interactive display. */
339 noninteractive = 0;
340 if (skip_args + 1 < argc && !strcmp (argv[skip_args + 1], "-batch"))
341 {
342 skip_args += 1;
343 noninteractive = 1;
344 }
345
346 #ifdef POSIX_SIGNALS
347 init_signals ();
348 #endif
349
350 if (
351 #ifndef CANNOT_DUMP
352 ! noninteractive || initialized
353 #else
354 1
355 #endif
356 )
357 {
358 /* Don't catch these signals in batch mode if not initialized.
359 On some machines, this sets static data that would make
360 signal fail to work right when the dumped Emacs is run. */
361 signal (SIGHUP, fatal_error_signal);
362 signal (SIGQUIT, fatal_error_signal);
363 signal (SIGILL, fatal_error_signal);
364 signal (SIGTRAP, fatal_error_signal);
365 signal (SIGIOT, fatal_error_signal);
366 #ifdef SIGEMT
367 signal (SIGEMT, fatal_error_signal);
368 #endif
369 signal (SIGFPE, fatal_error_signal);
370 signal (SIGBUS, fatal_error_signal);
371 signal (SIGSEGV, fatal_error_signal);
372 signal (SIGSYS, fatal_error_signal);
373 signal (SIGTERM, fatal_error_signal);
374 #ifdef SIGXCPU
375 signal (SIGXCPU, fatal_error_signal);
376 #endif
377 #ifdef SIGXFSZ
378 signal (SIGXFSZ, fatal_error_signal);
379 #endif /* SIGXFSZ */
380
381 #ifdef AIX
382 signal (SIGDANGER, fatal_error_signal);
383 signal (20, fatal_error_signal);
384 signal (21, fatal_error_signal);
385 signal (22, fatal_error_signal);
386 signal (23, fatal_error_signal);
387 signal (24, fatal_error_signal);
388 #ifdef SIGIO
389 signal (SIGAIO, fatal_error_signal);
390 signal (SIGPTY, fatal_error_signal);
391 #endif
392 signal (SIGIOINT, fatal_error_signal);
393 signal (SIGGRANT, fatal_error_signal);
394 signal (SIGRETRACT, fatal_error_signal);
395 signal (SIGSOUND, fatal_error_signal);
396 signal (SIGMSG, fatal_error_signal);
397 #endif /* AIX */
398 }
399
400 noninteractive1 = noninteractive;
401
402 /* Perform basic initializations (not merely interning symbols) */
403
404 if (!initialized)
405 {
406 init_alloc_once ();
407 init_obarray ();
408 init_eval_once ();
409 init_syntax_once (); /* Create standard syntax table. */
410 /* Must be done before init_buffer */
411 init_casetab_once ();
412 init_buffer_once (); /* Create buffer table and some buffers */
413 init_minibuf_once (); /* Create list of minibuffers */
414 /* Must precede init_window_once */
415 init_window_once (); /* Init the window system */
416 }
417
418 init_alloc ();
419 init_eval ();
420 init_data ();
421 init_lread ();
422
423 init_cmdargs (argc, argv, skip_args); /* Create list Vcommand_line_args */
424 init_buffer (); /* Init default directory of main buffer */
425 if (!noninteractive)
426 {
427 #ifdef VMS
428 init_vms_input ();/* init_display calls get_frame_size, that needs this */
429 #endif /* VMS */
430 init_display (); /* Determine terminal type. init_sys_modes uses results */
431 }
432 init_keyboard (); /* This too must precede init_sys_modes */
433 init_callproc (); /* And this too. */
434 #ifdef VMS
435 init_vmsproc (); /* And this too. */
436 #endif /* VMS */
437 init_sys_modes (); /* Init system terminal modes (RAW or CBREAK, etc.) */
438 init_xdisp ();
439 init_macros ();
440 init_editfns ();
441 #ifdef LISP_FLOAT_TYPE
442 init_floatfns ();
443 #endif
444 #ifdef VMS
445 init_vmsfns ();
446 #endif /* VMS */
447 init_process ();
448 #ifdef CLASH_DETECTION
449 init_filelock ();
450 #endif /* CLASH_DETECTION */
451
452 /* Intern the names of all standard functions and variables; define standard keys */
453
454 if (!initialized)
455 {
456 /* The basic levels of Lisp must come first */
457 /* And data must come first of all
458 for the sake of symbols like error-message */
459 syms_of_data ();
460 syms_of_alloc ();
461 syms_of_lread ();
462 syms_of_print ();
463 syms_of_eval ();
464 syms_of_fns ();
465 #ifdef LISP_FLOAT_TYPE
466 syms_of_floatfns ();
467 #endif
468
469 syms_of_abbrev ();
470 syms_of_buffer ();
471 syms_of_bytecode ();
472 syms_of_callint ();
473 syms_of_casefiddle ();
474 syms_of_casetab ();
475 syms_of_callproc ();
476 syms_of_cmds ();
477 #ifndef NO_DIR_LIBRARY
478 syms_of_dired ();
479 #endif /* not NO_DIR_LIBRARY */
480 syms_of_display ();
481 syms_of_doc ();
482 syms_of_editfns ();
483 syms_of_emacs ();
484 syms_of_fileio ();
485 #ifdef CLASH_DETECTION
486 syms_of_filelock ();
487 #endif /* CLASH_DETECTION */
488 syms_of_indent ();
489 syms_of_keyboard ();
490 syms_of_keymap ();
491 syms_of_macros ();
492 syms_of_marker ();
493 syms_of_minibuf ();
494 syms_of_mocklisp ();
495 syms_of_process ();
496 syms_of_search ();
497 syms_of_frame ();
498 syms_of_syntax ();
499 syms_of_undo ();
500 #ifdef VMS
501 syms_of_vmsproc ();
502 #endif /* VMS */
503 syms_of_window ();
504 syms_of_xdisp ();
505 #ifdef HAVE_X_WINDOWS
506 syms_of_xterm ();
507 syms_of_xfns ();
508 #ifdef HAVE_X11
509 syms_of_xselect ();
510 #endif
511 #ifdef HAVE_X_MENU
512 syms_of_xmenu ();
513 #endif /* HAVE_X_MENU */
514 #endif /* HAVE_X_WINDOWS */
515
516 #ifdef SYMS_SYSTEM
517 SYMS_SYSTEM;
518 #endif
519
520 #ifdef SYMS_MACHINE
521 SYMS_MACHINE;
522 #endif
523
524 keys_of_casefiddle ();
525 keys_of_cmds ();
526 keys_of_buffer ();
527 keys_of_keyboard ();
528 keys_of_keymap ();
529 keys_of_macros ();
530 keys_of_minibuf ();
531 keys_of_window ();
532 }
533
534 if (!initialized)
535 {
536 /* Handle -l loadup-and-dump, args passed by Makefile. */
537 if (argc > 2 + skip_args && !strcmp (argv[1 + skip_args], "-l"))
538 Vtop_level = Fcons (intern ("load"),
539 Fcons (build_string (argv[2 + skip_args]), Qnil));
540 #ifdef CANNOT_DUMP
541 /* Unless next switch is -nl, load "loadup.el" first thing. */
542 if (!(argc > 1 + skip_args && !strcmp (argv[1 + skip_args], "-nl")))
543 Vtop_level = Fcons (intern ("load"),
544 Fcons (build_string ("loadup.el"), Qnil));
545 #endif /* CANNOT_DUMP */
546 }
547
548 initialized = 1;
549
550 #ifdef sun
551 /* sun's localtime() has a bug. it caches the value of the time
552 zone rather than looking it up every time. Since localtime() is
553 called to bolt the undumping time into the undumped emacs, this
554 results in localtime() ignoring the TZ environment variable.
555 This flushes the new TZ value into localtime(). */
556 tzset();
557 #endif /* sun */
558
559 /* Enter editor command loop. This never returns. */
560 Frecursive_edit ();
561 /* NOTREACHED */
562 }
563 \f
564 DEFUN ("kill-emacs", Fkill_emacs, Skill_emacs, 0, 1, "P",
565 "Exit the Emacs job and kill it. Ask for confirmation, without argument.\n\
566 If ARG is an integer, return ARG as the exit program code.\n\
567 If ARG is a string, stuff it as keyboard input.\n\n\
568 The value of `kill-emacs-hook', if not void,\n\
569 is a list of functions (of no args),\n\
570 all of which are called before Emacs is actually killed.")
571 (arg)
572 Lisp_Object arg;
573 {
574 Lisp_Object hook, hook1;
575 int i;
576 struct gcpro gcpro1;
577
578 GCPRO1 (arg);
579
580 if (feof (stdin))
581 arg = Qt;
582
583 if (!NILP (Vrun_hooks) && !noninteractive)
584 call1 (Vrun_hooks, intern ("kill-emacs-hook"));
585
586 kill_buffer_processes (Qnil);
587
588 #ifdef VMS
589 kill_vms_processes ();
590 #endif /* VMS */
591
592 Fdo_auto_save (Qt, Qnil);
593
594 #ifdef CLASH_DETECTION
595 unlock_all_files ();
596 #endif /* CLASH_DETECTION */
597
598 fflush (stdout);
599 reset_sys_modes ();
600
601 #ifdef HAVE_X_WINDOWS
602 if (!noninteractive && EQ (Vwindow_system, intern ("x")))
603 Fx_close_current_connection ();
604 #endif /* HAVE_X_WINDOWS */
605
606 UNGCPRO;
607
608 /* Is it really necessary to do this deassign
609 when we are going to exit anyway? */
610 /* #ifdef VMS
611 stop_vms_input ();
612 #endif */
613 stuff_buffered_input (arg);
614 #ifdef SIGIO
615 /* There is a tendency for a SIGIO signal to arrive within exit,
616 and cause a SIGHUP because the input descriptor is already closed. */
617 unrequest_sigio ();
618 signal (SIGIO, SIG_IGN);
619 #endif
620 exit ((XTYPE (arg) == Lisp_Int) ? XINT (arg)
621 #ifdef VMS
622 : 1
623 #else
624 : 0
625 #endif
626 );
627 /* NOTREACHED */
628 }
629 \f
630 #ifndef CANNOT_DUMP
631 /* Nothing like this can be implemented on an Apollo.
632 What a loss! */
633
634 #ifdef HAVE_SHM
635
636 DEFUN ("dump-emacs-data", Fdump_emacs_data, Sdump_emacs_data, 1, 1, 0,
637 "Dump current state of Emacs into data file FILENAME.\n\
638 This function exists on systems that use HAVE_SHM.")
639 (intoname)
640 Lisp_Object intoname;
641 {
642 extern int my_edata;
643 Lisp_Object tem;
644 extern void malloc_warning ();
645
646 CHECK_STRING (intoname, 0);
647 intoname = Fexpand_file_name (intoname, Qnil);
648
649 tem = Vpurify_flag;
650 Vpurify_flag = Qnil;
651
652 fflush (stdout);
653 /* Tell malloc where start of impure now is */
654 /* Also arrange for warnings when nearly out of space. */
655 #ifndef SYSTEM_MALLOC
656 malloc_init (&my_edata, malloc_warning);
657 #endif
658 map_out_data (XSTRING (intoname)->data);
659
660 Vpurify_flag = tem;
661
662 return Qnil;
663 }
664
665 #else /* not HAVE_SHM */
666
667 DEFUN ("dump-emacs", Fdump_emacs, Sdump_emacs, 2, 2, 0,
668 "Dump current state of Emacs into executable file FILENAME.\n\
669 Take symbols from SYMFILE (presumably the file you executed to run Emacs).\n\
670 This is used in the file `loadup.el' when building Emacs.\n\
671 \n\
672 Bind `command-line-processed' to nil before dumping,\n\
673 if you want the dumped Emacs to process its command line\n\
674 and announce itself normally when it is run.")
675 (intoname, symname)
676 Lisp_Object intoname, symname;
677 {
678 extern int my_edata;
679 Lisp_Object tem;
680 extern void malloc_warning ();
681
682 CHECK_STRING (intoname, 0);
683 intoname = Fexpand_file_name (intoname, Qnil);
684 if (!NILP (symname))
685 {
686 CHECK_STRING (symname, 0);
687 if (XSTRING (symname)->size)
688 symname = Fexpand_file_name (symname, Qnil);
689 }
690
691 tem = Vpurify_flag;
692 Vpurify_flag = Qnil;
693
694 fflush (stdout);
695 #ifdef VMS
696 mapout_data (XSTRING (intoname)->data);
697 #else
698 /* Tell malloc where start of impure now is */
699 /* Also arrange for warnings when nearly out of space. */
700 #ifndef SYSTEM_MALLOC
701 malloc_init (&my_edata, malloc_warning);
702 #endif
703 unexec (XSTRING (intoname)->data,
704 !NILP (symname) ? XSTRING (symname)->data : 0, &my_edata, 0, 0);
705 #endif /* not VMS */
706
707 Vpurify_flag = tem;
708
709 return Qnil;
710 }
711
712 #endif /* not HAVE_SHM */
713
714 #endif /* not CANNOT_DUMP */
715 \f
716 #ifdef VMS
717 #define SEPCHAR ','
718 #else
719 #define SEPCHAR ':'
720 #endif
721
722 Lisp_Object
723 decode_env_path (evarname, defalt)
724 char *evarname, *defalt;
725 {
726 register char *path, *p;
727 extern char *index ();
728
729 Lisp_Object lpath;
730
731 /* It's okay to use getenv here, because this function is only used
732 to initialize variables when Emacs starts up, and isn't called
733 after that. */
734 if (evarname != 0)
735 path = (char *) getenv (evarname);
736 else
737 path = 0;
738 if (!path)
739 path = defalt;
740 lpath = Qnil;
741 while (1)
742 {
743 p = index (path, SEPCHAR);
744 if (!p) p = path + strlen (path);
745 lpath = Fcons (p - path ? make_string (path, p - path) : Qnil,
746 lpath);
747 if (*p)
748 path = p + 1;
749 else
750 break;
751 }
752 return Fnreverse (lpath);
753 }
754
755 syms_of_emacs ()
756 {
757 #ifdef HAVE_SHM
758 defsubr (&Sdump_emacs_data);
759 #else
760 defsubr (&Sdump_emacs);
761 #endif
762
763 defsubr (&Skill_emacs);
764
765 DEFVAR_LISP ("command-line-args", &Vcommand_line_args,
766 "Args passed by shell to Emacs, as a list of strings.");
767
768 DEFVAR_LISP ("system-type", &Vsystem_type,
769 "Value is symbol indicating type of operating system you are using.");
770 Vsystem_type = intern (SYSTEM_TYPE);
771
772 DEFVAR_BOOL ("noninteractive", &noninteractive1,
773 "Non-nil means Emacs is running without interactive terminal.");
774
775 Vkill_emacs_hook = Qnil;
776
777 DEFVAR_LISP ("kill-emacs-hook", &Vkill_emacs_hook,
778 "Hook to be run whenever kill-emacs is called.");
779 }