1 /* Synchronous subprocess invocation for GNU Emacs.
2 Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994, 1995, 1999, 2000, 2001,
3 2002, 2003, 2004, 2005, 2006, 2007, 2008
4 Free Software Foundation, Inc.
6 This file is part of GNU Emacs.
8 GNU Emacs is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3, or (at your option)
13 GNU Emacs is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs; see the file COPYING. If not, write to
20 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 Boston, MA 02110-1301, USA. */
33 /* Define SIGCHLD as an alias for SIGCLD. */
35 #if !defined (SIGCHLD) && defined (SIGCLD)
36 #define SIGCHLD SIGCLD
39 #include <sys/types.h>
47 #define INCLUDED_FCNTL
54 #include <stdlib.h> /* for proper declaration of environ */
57 #define _P_NOWAIT 1 /* from process.h */
60 #ifdef MSDOS /* Demacs 1.1.1 91/10/16 HIRANO Satoshi */
61 #define INCLUDED_FCNTL
64 #include <sys/param.h>
82 #include "composite.h"
85 #include "syssignal.h"
87 #include "blockinput.h"
89 #include "termhooks.h"
96 extern noshare
char **environ
;
99 extern char **environ
;
104 #if !defined (USG) || defined (BSD_PGRPS)
106 #define setpgrp setpgid
110 Lisp_Object Vexec_path
, Vexec_directory
, Vexec_suffixes
;
111 Lisp_Object Vdata_directory
, Vdoc_directory
;
112 Lisp_Object Vconfigure_info_directory
, Vshared_game_score_directory
;
113 Lisp_Object Vtemp_file_name_pattern
;
115 Lisp_Object Vshell_file_name
;
117 Lisp_Object Vprocess_environment
, Vinitial_environment
;
120 Lisp_Object Qbuffer_file_type
;
123 /* True if we are about to fork off a synchronous process or if we
124 are waiting for it. */
125 int synch_process_alive
;
127 /* Nonzero => this is a string explaining death of synchronous subprocess. */
128 char *synch_process_death
;
130 /* Nonzero => this is the signal number that terminated the subprocess. */
131 int synch_process_termsig
;
133 /* If synch_process_death is zero,
134 this is exit code of synchronous subprocess. */
135 int synch_process_retcode
;
138 /* Clean up when exiting Fcall_process.
139 On MSDOS, delete the temporary file on any kind of termination.
140 On Unix, kill the process and any children on termination by signal. */
142 /* Nonzero if this is termination due to exit. */
143 static int call_process_exited
;
145 EXFUN (Fgetenv_internal
, 2);
147 #ifndef VMS /* VMS version is in vmsproc.c. */
150 call_process_kill (fdpid
)
153 emacs_close (XFASTINT (Fcar (fdpid
)));
154 EMACS_KILLPG (XFASTINT (Fcdr (fdpid
)), SIGKILL
);
155 synch_process_alive
= 0;
160 call_process_cleanup (fdpid
)
164 /* for MSDOS fdpid is really (fd . tempfile) */
165 register Lisp_Object file
;
167 emacs_close (XFASTINT (Fcar (fdpid
)));
168 if (strcmp (SDATA (file
), NULL_DEVICE
) != 0)
169 unlink (SDATA (file
));
170 #else /* not MSDOS */
171 register int pid
= XFASTINT (Fcdr (fdpid
));
173 if (call_process_exited
)
175 emacs_close (XFASTINT (Fcar (fdpid
)));
179 if (EMACS_KILLPG (pid
, SIGINT
) == 0)
181 int count
= SPECPDL_INDEX ();
182 record_unwind_protect (call_process_kill
, fdpid
);
183 message1 ("Waiting for process to die...(type C-g again to kill it instantly)");
186 wait_for_termination (pid
);
188 specpdl_ptr
= specpdl
+ count
; /* Discard the unwind protect. */
189 message1 ("Waiting for process to die...done");
191 synch_process_alive
= 0;
192 emacs_close (XFASTINT (Fcar (fdpid
)));
193 #endif /* not MSDOS */
197 DEFUN ("call-process", Fcall_process
, Scall_process
, 1, MANY
, 0,
198 doc
: /* Call PROGRAM synchronously in separate process.
199 The remaining arguments are optional.
200 The program's input comes from file INFILE (nil means `/dev/null').
201 Insert output in BUFFER before point; t means current buffer;
202 nil for BUFFER means discard it; 0 means discard and don't wait.
203 BUFFER can also have the form (REAL-BUFFER STDERR-FILE); in that case,
204 REAL-BUFFER says what to do with standard output, as above,
205 while STDERR-FILE says what to do with standard error in the child.
206 STDERR-FILE may be nil (discard standard error output),
207 t (mix it with ordinary output), or a file name string.
209 Fourth arg DISPLAY non-nil means redisplay buffer as output is inserted.
210 Remaining arguments are strings passed as command arguments to PROGRAM.
212 If executable PROGRAM can't be found as an executable, `call-process'
213 signals a Lisp error. `call-process' reports errors in execution of
214 the program only through its return and output.
216 If BUFFER is 0, `call-process' returns immediately with value nil.
217 Otherwise it waits for PROGRAM to terminate
218 and returns a numeric exit status or a signal description string.
219 If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.
221 usage: (call-process PROGRAM &optional INFILE BUFFER DISPLAY &rest ARGS) */)
224 register Lisp_Object
*args
;
226 Lisp_Object infile
, buffer
, current_dir
, path
;
231 #define CALLPROC_BUFFER_SIZE_MIN (16 * 1024)
232 #define CALLPROC_BUFFER_SIZE_MAX (4 * CALLPROC_BUFFER_SIZE_MIN)
233 char buf
[CALLPROC_BUFFER_SIZE_MAX
];
234 int bufsize
= CALLPROC_BUFFER_SIZE_MIN
;
235 int count
= SPECPDL_INDEX ();
237 register const unsigned char **new_argv
238 = (const unsigned char **) alloca ((max (2, nargs
- 2)) * sizeof (char *));
239 struct buffer
*old
= current_buffer
;
240 /* File to use for stderr in the child.
241 t means use same as standard output. */
242 Lisp_Object error_file
;
243 #ifdef MSDOS /* Demacs 1.1.1 91/10/16 HIRANO Satoshi */
244 char *outf
, *tempfile
;
250 struct coding_system process_coding
; /* coding-system of process output */
251 struct coding_system argument_coding
; /* coding-system of arguments */
252 /* Set to the return value of Ffind_operation_coding_system. */
253 Lisp_Object coding_systems
;
255 /* Qt denotes that Ffind_operation_coding_system is not yet called. */
258 CHECK_STRING (args
[0]);
263 /* Without asynchronous processes we cannot have BUFFER == 0. */
265 && (INTEGERP (CONSP (args
[2]) ? XCAR (args
[2]) : args
[2])))
266 error ("Operating system cannot handle asynchronous subprocesses");
267 #endif /* subprocesses */
269 /* Decide the coding-system for giving arguments. */
271 Lisp_Object val
, *args2
;
274 /* If arguments are supplied, we may have to encode them. */
279 for (i
= 4; i
< nargs
; i
++)
280 CHECK_STRING (args
[i
]);
282 for (i
= 4; i
< nargs
; i
++)
283 if (STRING_MULTIBYTE (args
[i
]))
286 if (!NILP (Vcoding_system_for_write
))
287 val
= Vcoding_system_for_write
;
288 else if (! must_encode
)
292 args2
= (Lisp_Object
*) alloca ((nargs
+ 1) * sizeof *args2
);
293 args2
[0] = Qcall_process
;
294 for (i
= 0; i
< nargs
; i
++) args2
[i
+ 1] = args
[i
];
295 coding_systems
= Ffind_operation_coding_system (nargs
+ 1, args2
);
296 if (CONSP (coding_systems
))
297 val
= XCDR (coding_systems
);
298 else if (CONSP (Vdefault_process_coding_system
))
299 val
= XCDR (Vdefault_process_coding_system
);
303 setup_coding_system (Fcheck_coding_system (val
), &argument_coding
);
304 if (argument_coding
.common_flags
& CODING_ASCII_INCOMPATIBLE_MASK
)
305 setup_coding_system (Qraw_text
, &argument_coding
);
306 if (argument_coding
.eol_type
== CODING_EOL_UNDECIDED
)
307 argument_coding
.eol_type
= system_eol_type
;
311 if (nargs
>= 2 && ! NILP (args
[1]))
313 infile
= Fexpand_file_name (args
[1], current_buffer
->directory
);
314 CHECK_STRING (infile
);
317 infile
= build_string (NULL_DEVICE
);
323 /* If BUFFER is a list, its meaning is
324 (BUFFER-FOR-STDOUT FILE-FOR-STDERR). */
327 if (CONSP (XCDR (buffer
)))
329 Lisp_Object stderr_file
;
330 stderr_file
= XCAR (XCDR (buffer
));
332 if (NILP (stderr_file
) || EQ (Qt
, stderr_file
))
333 error_file
= stderr_file
;
335 error_file
= Fexpand_file_name (stderr_file
, Qnil
);
338 buffer
= XCAR (buffer
);
341 if (!(EQ (buffer
, Qnil
)
343 || INTEGERP (buffer
)))
345 Lisp_Object spec_buffer
;
346 spec_buffer
= buffer
;
347 buffer
= Fget_buffer_create (buffer
);
348 /* Mention the buffer name for a better error message. */
350 CHECK_BUFFER (spec_buffer
);
351 CHECK_BUFFER (buffer
);
357 /* Make sure that the child will be able to chdir to the current
358 buffer's current directory, or its unhandled equivalent. We
359 can't just have the child check for an error when it does the
360 chdir, since it's in a vfork.
362 We have to GCPRO around this because Fexpand_file_name,
363 Funhandled_file_name_directory, and Ffile_accessible_directory_p
364 might call a file name handling function. The argument list is
365 protected by the caller, so all we really have to worry about is
368 struct gcpro gcpro1
, gcpro2
, gcpro3
, gcpro4
;
370 current_dir
= current_buffer
->directory
;
372 GCPRO4 (infile
, buffer
, current_dir
, error_file
);
375 = expand_and_dir_to_file (Funhandled_file_name_directory (current_dir
),
377 if (NILP (Ffile_accessible_directory_p (current_dir
)))
378 report_file_error ("Setting current directory",
379 Fcons (current_buffer
->directory
, Qnil
));
381 if (STRING_MULTIBYTE (infile
))
382 infile
= ENCODE_FILE (infile
);
383 if (STRING_MULTIBYTE (current_dir
))
384 current_dir
= ENCODE_FILE (current_dir
);
385 if (STRINGP (error_file
) && STRING_MULTIBYTE (error_file
))
386 error_file
= ENCODE_FILE (error_file
);
390 display_p
= INTERACTIVE
&& nargs
>= 4 && !NILP (args
[3]);
392 filefd
= emacs_open (SDATA (infile
), O_RDONLY
, 0);
395 infile
= DECODE_FILE (infile
);
396 report_file_error ("Opening process input file", Fcons (infile
, Qnil
));
398 /* Search for program; barf if not found. */
402 GCPRO1 (current_dir
);
403 openp (Vexec_path
, args
[0], Vexec_suffixes
, &path
, make_number (X_OK
));
408 emacs_close (filefd
);
409 report_file_error ("Searching for program", Fcons (args
[0], Qnil
));
412 /* If program file name starts with /: for quoting a magic name,
414 if (SBYTES (path
) > 2 && SREF (path
, 0) == '/'
415 && SREF (path
, 1) == ':')
416 path
= Fsubstring (path
, make_number (2), Qnil
);
418 new_argv
[0] = SDATA (path
);
422 struct gcpro gcpro1
, gcpro2
, gcpro3
;
424 GCPRO3 (infile
, buffer
, current_dir
);
425 argument_coding
.dst_multibyte
= 0;
426 for (i
= 4; i
< nargs
; i
++)
428 argument_coding
.src_multibyte
= STRING_MULTIBYTE (args
[i
]);
429 if (CODING_REQUIRE_ENCODING (&argument_coding
))
431 /* We must encode this argument. */
432 args
[i
] = encode_coding_string (args
[i
], &argument_coding
, 1);
433 if (argument_coding
.type
== coding_type_ccl
)
434 setup_ccl_program (&(argument_coding
.spec
.ccl
.encoder
), Qnil
);
436 new_argv
[i
- 3] = SDATA (args
[i
]);
439 new_argv
[nargs
- 3] = 0;
444 #ifdef MSDOS /* MW, July 1993 */
445 if ((outf
= egetenv ("TMPDIR")))
446 strcpy (tempfile
= alloca (strlen (outf
) + 20), outf
);
449 tempfile
= alloca (20);
452 dostounix_filename (tempfile
);
453 if (*tempfile
== '\0' || tempfile
[strlen (tempfile
) - 1] != '/')
454 strcat (tempfile
, "/");
455 strcat (tempfile
, "detmp.XXX");
458 outfilefd
= creat (tempfile
, S_IREAD
| S_IWRITE
);
461 emacs_close (filefd
);
462 report_file_error ("Opening process output file",
463 Fcons (build_string (tempfile
), Qnil
));
469 if (INTEGERP (buffer
))
470 fd
[1] = emacs_open (NULL_DEVICE
, O_WRONLY
, 0), fd
[0] = -1;
477 emacs_close (filefd
);
478 report_file_error ("Creating process pipe", Qnil
);
482 /* Replaced by close_process_descs */
483 set_exclusive_use (fd
[0]);
488 /* child_setup must clobber environ in systems with true vfork.
489 Protect it from permanent change. */
490 register char **save_environ
= environ
;
491 register int fd1
= fd
[1];
494 #if 0 /* Some systems don't have sigblock. */
495 mask
= sigblock (sigmask (SIGCHLD
));
498 /* Record that we're about to create a synchronous process. */
499 synch_process_alive
= 1;
501 /* These vars record information from process termination.
502 Clear them now before process can possibly terminate,
503 to avoid timing error if process terminates soon. */
504 synch_process_death
= 0;
505 synch_process_retcode
= 0;
506 synch_process_termsig
= 0;
508 if (NILP (error_file
))
509 fd_error
= emacs_open (NULL_DEVICE
, O_WRONLY
, 0);
510 else if (STRINGP (error_file
))
513 fd_error
= emacs_open (SDATA (error_file
),
514 O_WRONLY
| O_TRUNC
| O_CREAT
| O_TEXT
,
516 #else /* not DOS_NT */
517 fd_error
= creat (SDATA (error_file
), 0666);
518 #endif /* not DOS_NT */
523 emacs_close (filefd
);
531 if (NILP (error_file
))
532 error_file
= build_string (NULL_DEVICE
);
533 else if (STRINGP (error_file
))
534 error_file
= DECODE_FILE (error_file
);
535 report_file_error ("Cannot redirect stderr", Fcons (error_file
, Qnil
));
538 #ifdef MSDOS /* MW, July 1993 */
539 /* Note that on MSDOS `child_setup' actually returns the child process
540 exit status, not its PID, so we assign it to `synch_process_retcode'
542 pid
= child_setup (filefd
, outfilefd
, fd_error
, (char **) new_argv
,
545 /* Record that the synchronous process exited and note its
546 termination status. */
547 synch_process_alive
= 0;
548 synch_process_retcode
= pid
;
549 if (synch_process_retcode
< 0) /* means it couldn't be exec'ed */
551 synchronize_system_messages_locale ();
552 synch_process_death
= strerror (errno
);
555 emacs_close (outfilefd
);
556 if (fd_error
!= outfilefd
)
557 emacs_close (fd_error
);
558 fd1
= -1; /* No harm in closing that one! */
559 /* Since CRLF is converted to LF within `decode_coding', we can
560 always open a file with binary mode. */
561 fd
[0] = emacs_open (tempfile
, O_RDONLY
| O_BINARY
, 0);
565 emacs_close (filefd
);
566 report_file_error ("Cannot re-open temporary file", Qnil
);
568 #else /* not MSDOS */
570 pid
= child_setup (filefd
, fd1
, fd_error
, (char **) new_argv
,
572 #else /* not WINDOWSNT */
584 #if defined (USG) && !defined (BSD_PGRPS)
589 child_setup (filefd
, fd1
, fd_error
, (char **) new_argv
,
594 #endif /* not WINDOWSNT */
596 /* The MSDOS case did this already. */
598 emacs_close (fd_error
);
599 #endif /* not MSDOS */
601 environ
= save_environ
;
603 /* Close most of our fd's, but not fd[0]
604 since we will use that to read input from. */
605 emacs_close (filefd
);
606 if (fd1
>= 0 && fd1
!= fd_error
)
614 report_file_error ("Doing vfork", Qnil
);
617 if (INTEGERP (buffer
))
622 /* If Emacs has been built with asynchronous subprocess support,
623 we don't need to do this, I think because it will then have
624 the facilities for handling SIGCHLD. */
625 wait_without_blocking ();
626 #endif /* subprocesses */
630 /* Enable sending signal if user quits below. */
631 call_process_exited
= 0;
634 /* MSDOS needs different cleanup information. */
635 record_unwind_protect (call_process_cleanup
,
636 Fcons (make_number (fd
[0]), build_string (tempfile
)));
638 record_unwind_protect (call_process_cleanup
,
639 Fcons (make_number (fd
[0]), make_number (pid
)));
640 #endif /* not MSDOS */
643 if (BUFFERP (buffer
))
644 Fset_buffer (buffer
);
648 /* If BUFFER is nil, we must read process output once and then
649 discard it, so setup coding system but with nil. */
650 setup_coding_system (Qnil
, &process_coding
);
654 Lisp_Object val
, *args2
;
657 if (!NILP (Vcoding_system_for_read
))
658 val
= Vcoding_system_for_read
;
661 if (EQ (coding_systems
, Qt
))
665 args2
= (Lisp_Object
*) alloca ((nargs
+ 1) * sizeof *args2
);
666 args2
[0] = Qcall_process
;
667 for (i
= 0; i
< nargs
; i
++) args2
[i
+ 1] = args
[i
];
669 = Ffind_operation_coding_system (nargs
+ 1, args2
);
671 if (CONSP (coding_systems
))
672 val
= XCAR (coding_systems
);
673 else if (CONSP (Vdefault_process_coding_system
))
674 val
= XCAR (Vdefault_process_coding_system
);
678 setup_coding_system (Fcheck_coding_system (val
), &process_coding
);
679 /* In unibyte mode, character code conversion should not take
680 place but EOL conversion should. So, setup raw-text or one
681 of the subsidiary according to the information just setup. */
682 if (NILP (current_buffer
->enable_multibyte_characters
)
684 setup_raw_text_coding_system (&process_coding
);
686 process_coding
.src_multibyte
= 0;
687 process_coding
.dst_multibyte
689 ? ! NILP (XBUFFER (buffer
)->enable_multibyte_characters
)
690 : ! NILP (current_buffer
->enable_multibyte_characters
));
700 int display_on_the_fly
= display_p
;
701 struct coding_system saved_coding
;
702 int pt_orig
= PT
, pt_byte_orig
= PT_BYTE
;
705 saved_coding
= process_coding
;
706 if (process_coding
.composing
!= COMPOSITION_DISABLED
)
707 coding_allocate_composition_data (&process_coding
, PT
);
710 /* Repeatedly read until we've filled as much as possible
711 of the buffer size we have. But don't read
712 less than 1024--save that for the next bufferful. */
714 while (nread
< bufsize
- 1024)
716 int this_read
= emacs_read (fd
[0], buf
+ nread
,
724 process_coding
.mode
|= CODING_MODE_LAST_BLOCK
;
729 total_read
+= this_read
;
731 if (display_on_the_fly
)
735 /* Now NREAD is the total amount of data in the buffer. */
740 if (! CODING_MAY_REQUIRE_DECODING (&process_coding
))
741 insert_1_both (buf
, nread
, nread
, 0, 1, 0);
743 { /* We have to decode the input. */
748 size
= decoding_buffer_size (&process_coding
, nread
);
749 decoding_buf
= (char *) xmalloc (size
);
751 /* We can't use the macro CODING_REQUIRE_DETECTION
752 because it always returns nonzero if the coding
753 system requires EOL detection. Here, we have to
754 check only whether or not the coding system
755 requires text-encoding detection. */
756 if (process_coding
.type
== coding_type_undecided
)
758 detect_coding (&process_coding
, buf
, nread
);
759 if (process_coding
.composing
!= COMPOSITION_DISABLED
)
760 /* We have not yet allocated the composition
761 data because the coding type was undecided. */
762 coding_allocate_composition_data (&process_coding
, PT
);
764 if (process_coding
.cmp_data
)
765 process_coding
.cmp_data
->char_offset
= PT
;
767 decode_coding (&process_coding
, buf
, decoding_buf
,
770 if (display_on_the_fly
771 && saved_coding
.type
== coding_type_undecided
772 && process_coding
.type
!= coding_type_undecided
)
774 /* We have detected some coding system. But,
775 there's a possibility that the detection was
776 done by insufficient data. So, we try the code
777 detection again with more data. */
778 xfree (decoding_buf
);
779 display_on_the_fly
= 0;
780 process_coding
= saved_coding
;
782 /* This is to make the above condition always
783 fails in the future. */
784 saved_coding
.type
= coding_type_no_conversion
;
788 if (process_coding
.produced
> 0)
789 insert_1_both (decoding_buf
, process_coding
.produced_char
,
790 process_coding
.produced
, 0, 1, 0);
791 xfree (decoding_buf
);
793 if (process_coding
.result
== CODING_FINISH_INCONSISTENT_EOL
)
795 Lisp_Object eol_type
, coding
;
797 if (process_coding
.eol_type
== CODING_EOL_CR
)
799 /* CRs have been replaced with LFs. Undo
800 that in the text inserted above. */
803 move_gap_both (PT
, PT_BYTE
);
805 p
= BYTE_POS_ADDR (pt_byte_orig
);
806 for (; p
< GPT_ADDR
; ++p
)
810 else if (process_coding
.eol_type
== CODING_EOL_CRLF
)
812 /* CR LFs have been replaced with LFs. Undo
813 that by inserting CRs in front of LFs in
814 the text inserted above. */
815 EMACS_INT bytepos
, old_pt
, old_pt_byte
, nCR
;
818 old_pt_byte
= PT_BYTE
;
821 for (bytepos
= PT_BYTE
- 1;
822 bytepos
>= pt_byte_orig
;
824 if (FETCH_BYTE (bytepos
) == '\n')
826 EMACS_INT charpos
= BYTE_TO_CHAR (bytepos
);
827 TEMP_SET_PT_BOTH (charpos
, bytepos
);
828 insert_1_both ("\r", 1, 1, 0, 1, 0);
832 TEMP_SET_PT_BOTH (old_pt
+ nCR
, old_pt_byte
+ nCR
);
835 /* Set the coding system symbol to that for
837 eol_type
= Fget (saved_coding
.symbol
, Qeol_type
);
838 if (VECTORP (eol_type
)
839 && ASIZE (eol_type
) == 3
840 && SYMBOLP (AREF (eol_type
, CODING_EOL_LF
)))
841 coding
= AREF (eol_type
, CODING_EOL_LF
);
843 coding
= saved_coding
.symbol
;
845 process_coding
.symbol
= coding
;
846 process_coding
.eol_type
= CODING_EOL_LF
;
848 &= ~CODING_MODE_INHIBIT_INCONSISTENT_EOL
;
851 nread
-= process_coding
.consumed
;
854 /* As CARRYOVER should not be that large, we had
855 better avoid overhead of bcopy. */
856 BCOPY_SHORT (buf
+ process_coding
.consumed
, buf
,
858 if (process_coding
.result
== CODING_FINISH_INSUFFICIENT_CMP
)
860 /* The decoding ended because of insufficient data
861 area to record information about composition.
862 We must try decoding with additional data area
863 before reading more output for the process. */
864 coding_allocate_composition_data (&process_coding
, PT
);
865 goto repeat_decoding
;
870 if (process_coding
.mode
& CODING_MODE_LAST_BLOCK
)
873 #if (CALLPROC_BUFFER_SIZE_MIN != CALLPROC_BUFFER_SIZE_MAX)
874 /* Make the buffer bigger as we continue to read more data,
875 but not past CALLPROC_BUFFER_SIZE_MAX. */
876 if (bufsize
< CALLPROC_BUFFER_SIZE_MAX
&& total_read
> 32 * bufsize
)
877 if ((bufsize
*= 2) > CALLPROC_BUFFER_SIZE_MAX
)
878 bufsize
= CALLPROC_BUFFER_SIZE_MAX
;
884 prepare_menu_bars ();
886 redisplay_preserve_echo_area (1);
887 /* This variable might have been set to 0 for code
888 detection. In that case, we set it back to 1 because
889 we should have already detected a coding system. */
890 display_on_the_fly
= 1;
898 && process_coding
.cmp_data
)
900 coding_restore_composition (&process_coding
, Fcurrent_buffer ());
901 coding_free_composition_data (&process_coding
);
905 int post_read_count
= SPECPDL_INDEX ();
907 record_unwind_protect (save_excursion_restore
, save_excursion_save ());
908 inserted
= PT
- pt_orig
;
909 TEMP_SET_PT_BOTH (pt_orig
, pt_byte_orig
);
910 if (SYMBOLP (process_coding
.post_read_conversion
)
911 && !NILP (Ffboundp (process_coding
.post_read_conversion
)))
912 call1 (process_coding
.post_read_conversion
, make_number (inserted
));
914 Vlast_coding_system_used
= process_coding
.symbol
;
916 /* If the caller required, let the buffer inherit the
917 coding-system used to decode the process output. */
918 if (inherit_process_coding_system
)
919 call1 (intern ("after-insert-file-set-buffer-file-coding-system"),
920 make_number (total_read
));
922 unbind_to (post_read_count
, Qnil
);
926 /* Wait for it to terminate, unless it already has. */
927 wait_for_termination (pid
);
931 set_buffer_internal (old
);
933 /* Don't kill any children that the subprocess may have left behind
935 call_process_exited
= 1;
937 unbind_to (count
, Qnil
);
939 if (synch_process_termsig
)
943 synchronize_system_messages_locale ();
944 signame
= strsignal (synch_process_termsig
);
949 synch_process_death
= signame
;
952 if (synch_process_death
)
953 return code_convert_string_norecord (build_string (synch_process_death
),
954 Vlocale_coding_system
, 0);
955 return make_number (synch_process_retcode
);
960 delete_temp_file (name
)
963 /* Suppress jka-compr handling, etc. */
964 int count
= SPECPDL_INDEX ();
965 specbind (intern ("file-name-handler-alist"), Qnil
);
966 internal_delete_file (name
);
967 unbind_to (count
, Qnil
);
971 DEFUN ("call-process-region", Fcall_process_region
, Scall_process_region
,
973 doc
: /* Send text from START to END to a synchronous process running PROGRAM.
974 The remaining arguments are optional.
975 Delete the text if fourth arg DELETE is non-nil.
977 Insert output in BUFFER before point; t means current buffer;
978 nil for BUFFER means discard it; 0 means discard and don't wait.
979 BUFFER can also have the form (REAL-BUFFER STDERR-FILE); in that case,
980 REAL-BUFFER says what to do with standard output, as above,
981 while STDERR-FILE says what to do with standard error in the child.
982 STDERR-FILE may be nil (discard standard error output),
983 t (mix it with ordinary output), or a file name string.
985 Sixth arg DISPLAY non-nil means redisplay buffer as output is inserted.
986 Remaining args are passed to PROGRAM at startup as command args.
988 If BUFFER is 0, `call-process-region' returns immediately with value nil.
989 Otherwise it waits for PROGRAM to terminate
990 and returns a numeric exit status or a signal description string.
991 If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.
993 usage: (call-process-region START END PROGRAM &optional DELETE BUFFER DISPLAY &rest ARGS) */)
996 register Lisp_Object
*args
;
999 Lisp_Object filename_string
;
1000 register Lisp_Object start
, end
;
1001 int count
= SPECPDL_INDEX ();
1002 /* Qt denotes we have not yet called Ffind_operation_coding_system. */
1003 Lisp_Object coding_systems
;
1004 Lisp_Object val
, *args2
;
1010 if ((outf
= egetenv ("TMPDIR"))
1011 || (outf
= egetenv ("TMP"))
1012 || (outf
= egetenv ("TEMP")))
1013 strcpy (tempfile
= alloca (strlen (outf
) + 20), outf
);
1016 tempfile
= alloca (20);
1019 if (!IS_DIRECTORY_SEP (tempfile
[strlen (tempfile
) - 1]))
1020 strcat (tempfile
, "/");
1021 if ('/' == DIRECTORY_SEP
)
1022 dostounix_filename (tempfile
);
1024 unixtodos_filename (tempfile
);
1026 strcat (tempfile
, "emXXXXXX");
1028 strcat (tempfile
, "detmp.XXX");
1030 #else /* not DOS_NT */
1031 char *tempfile
= (char *) alloca (SBYTES (Vtemp_file_name_pattern
) + 1);
1032 bcopy (SDATA (Vtemp_file_name_pattern
), tempfile
,
1033 SBYTES (Vtemp_file_name_pattern
) + 1);
1034 #endif /* not DOS_NT */
1036 coding_systems
= Qt
;
1043 fd
= mkstemp (tempfile
);
1046 report_file_error ("Failed to open temporary file",
1047 Fcons (Vtemp_file_name_pattern
, Qnil
));
1055 filename_string
= build_string (tempfile
);
1056 GCPRO1 (filename_string
);
1059 /* Decide coding-system of the contents of the temporary file. */
1060 if (!NILP (Vcoding_system_for_write
))
1061 val
= Vcoding_system_for_write
;
1062 else if (NILP (current_buffer
->enable_multibyte_characters
))
1066 args2
= (Lisp_Object
*) alloca ((nargs
+ 1) * sizeof *args2
);
1067 args2
[0] = Qcall_process_region
;
1068 for (i
= 0; i
< nargs
; i
++) args2
[i
+ 1] = args
[i
];
1069 coding_systems
= Ffind_operation_coding_system (nargs
+ 1, args2
);
1070 if (CONSP (coding_systems
))
1071 val
= XCDR (coding_systems
);
1072 else if (CONSP (Vdefault_process_coding_system
))
1073 val
= XCDR (Vdefault_process_coding_system
);
1079 int count1
= SPECPDL_INDEX ();
1081 specbind (intern ("coding-system-for-write"), val
);
1082 /* POSIX lets mk[s]temp use "."; don't invoke jka-compr if we
1083 happen to get a ".Z" suffix. */
1084 specbind (intern ("file-name-handler-alist"), Qnil
);
1085 Fwrite_region (start
, end
, filename_string
, Qnil
, Qlambda
, Qnil
, Qnil
);
1087 unbind_to (count1
, Qnil
);
1090 /* Note that Fcall_process takes care of binding
1091 coding-system-for-read. */
1093 record_unwind_protect (delete_temp_file
, filename_string
);
1095 if (nargs
> 3 && !NILP (args
[3]))
1096 Fdelete_region (start
, end
);
1108 args
[1] = filename_string
;
1110 RETURN_UNGCPRO (unbind_to (count
, Fcall_process (nargs
, args
)));
1113 #ifndef VMS /* VMS version is in vmsproc.c. */
1115 static int relocate_fd ();
1118 add_env (char **env
, char **new_env
, char *string
)
1125 /* See if this string duplicates any string already in the env.
1126 If so, don't put it in.
1127 When an env var has multiple definitions,
1128 we keep the definition that comes first in process-environment. */
1129 for (ep
= env
; ok
&& ep
!= new_env
; ep
++)
1131 char *p
= *ep
, *q
= string
;
1137 /* The string is a lone variable name; keep it for now, we
1138 will remove it later. It is a placeholder for a
1139 variable that is not to be included in the environment. */
1147 *new_env
++ = string
;
1151 /* This is the last thing run in a newly forked inferior
1152 either synchronous or asynchronous.
1153 Copy descriptors IN, OUT and ERR as descriptors 0, 1 and 2.
1154 Initialize inferior's priority, pgrp, connected dir and environment.
1155 then exec another program based on new_argv.
1157 This function may change environ for the superior process.
1158 Therefore, the superior process must save and restore the value
1159 of environ around the vfork and the call to this function.
1161 SET_PGRP is nonzero if we should put the subprocess into a separate
1164 CURRENT_DIR is an elisp string giving the path of the current
1165 directory the subprocess should have. Since we can't really signal
1166 a decent error from within the child, this should be verified as an
1167 executable directory by the parent. */
1170 child_setup (in
, out
, err
, new_argv
, set_pgrp
, current_dir
)
1172 register char **new_argv
;
1174 Lisp_Object current_dir
;
1181 #endif /* WINDOWSNT */
1183 int pid
= getpid ();
1185 #ifdef SET_EMACS_PRIORITY
1187 extern EMACS_INT emacs_priority
;
1189 if (emacs_priority
< 0)
1190 nice (- emacs_priority
);
1195 /* Close Emacs's descriptors that this process should not have. */
1196 close_process_descs ();
1198 /* DOS_NT isn't in a vfork, so if we are in the middle of load-file,
1199 we will lose if we call close_load_descs here. */
1201 close_load_descs ();
1204 /* Note that use of alloca is always safe here. It's obvious for systems
1205 that do not have true vfork or that have true (stack) alloca.
1206 If using vfork and C_ALLOCA (when Emacs used to include
1207 src/alloca.c) it is safe because that changes the superior's
1208 static variables as if the superior had done alloca and will be
1209 cleaned up in the usual way. */
1211 register char *temp
;
1214 i
= SBYTES (current_dir
);
1216 /* MSDOS must have all environment variables malloc'ed, because
1217 low-level libc functions that launch subsidiary processes rely
1219 pwd_var
= (char *) xmalloc (i
+ 6);
1221 pwd_var
= (char *) alloca (i
+ 6);
1224 bcopy ("PWD=", pwd_var
, 4);
1225 bcopy (SDATA (current_dir
), temp
, i
);
1226 if (!IS_DIRECTORY_SEP (temp
[i
- 1])) temp
[i
++] = DIRECTORY_SEP
;
1230 /* We can't signal an Elisp error here; we're in a vfork. Since
1231 the callers check the current directory before forking, this
1232 should only return an error if the directory's permissions
1233 are changed between the check and this chdir, but we should
1235 if (chdir (temp
) < 0)
1240 /* Get past the drive letter, so that d:/ is left alone. */
1241 if (i
> 2 && IS_DEVICE_SEP (temp
[1]) && IS_DIRECTORY_SEP (temp
[2]))
1248 /* Strip trailing slashes for PWD, but leave "/" and "//" alone. */
1249 while (i
> 2 && IS_DIRECTORY_SEP (temp
[i
- 1]))
1253 /* Set `env' to a vector of the strings in the environment. */
1255 register Lisp_Object tem
;
1256 register char **new_env
;
1258 register int new_length
;
1259 Lisp_Object display
= Qnil
;
1263 for (tem
= Vprocess_environment
;
1264 CONSP (tem
) && STRINGP (XCAR (tem
));
1267 if (strncmp (SDATA (XCAR (tem
)), "DISPLAY", 7) == 0
1268 && (SDATA (XCAR (tem
)) [7] == '\0'
1269 || SDATA (XCAR (tem
)) [7] == '='))
1270 /* DISPLAY is specified in process-environment. */
1275 /* If not provided yet, use the frame's DISPLAY. */
1278 Lisp_Object tmp
= Fframe_parameter (selected_frame
, Qdisplay
);
1279 if (!STRINGP (tmp
) && CONSP (Vinitial_environment
))
1280 /* If still not found, Look for DISPLAY in Vinitial_environment. */
1281 tmp
= Fgetenv_internal (build_string ("DISPLAY"),
1282 Vinitial_environment
);
1290 /* new_length + 2 to include PWD and terminating 0. */
1291 env
= new_env
= (char **) alloca ((new_length
+ 2) * sizeof (char *));
1292 /* If we have a PWD envvar, pass one down,
1293 but with corrected value. */
1294 if (egetenv ("PWD"))
1295 *new_env
++ = pwd_var
;
1297 if (STRINGP (display
))
1299 int vlen
= strlen ("DISPLAY=") + strlen (SDATA (display
)) + 1;
1300 char *vdata
= (char *) alloca (vlen
);
1301 strcpy (vdata
, "DISPLAY=");
1302 strcat (vdata
, SDATA (display
));
1303 new_env
= add_env (env
, new_env
, vdata
);
1307 for (tem
= Vprocess_environment
;
1308 CONSP (tem
) && STRINGP (XCAR (tem
));
1310 new_env
= add_env (env
, new_env
, SDATA (XCAR (tem
)));
1314 /* Remove variable names without values. */
1318 while (*q
!= 0 && strchr (*q
, '=') == NULL
)
1328 prepare_standard_handles (in
, out
, err
, handles
);
1329 set_process_dir (SDATA (current_dir
));
1330 #else /* not WINDOWSNT */
1331 /* Make sure that in, out, and err are not actually already in
1332 descriptors zero, one, or two; this could happen if Emacs is
1333 started with its standard in, out, or error closed, as might
1336 int oin
= in
, oout
= out
;
1338 /* We have to avoid relocating the same descriptor twice! */
1340 in
= relocate_fd (in
, 3);
1345 out
= relocate_fd (out
, 3);
1349 else if (err
== oout
)
1352 err
= relocate_fd (err
, 3);
1366 #endif /* not MSDOS */
1367 #endif /* not WINDOWSNT */
1369 #if defined(USG) && !defined(BSD_PGRPS)
1370 #ifndef SETPGRP_RELEASES_CTTY
1371 setpgrp (); /* No arguments but equivalent in this case */
1376 /* setpgrp_of_tty is incorrect here; it uses input_fd. */
1377 EMACS_SET_TTY_PGRP (0, &pid
);
1380 pid
= run_msdos_command (new_argv
, pwd_var
+ 4, in
, out
, err
, env
);
1383 /* An error occurred while trying to run the subprocess. */
1384 report_file_error ("Spawning child process", Qnil
);
1386 #else /* not MSDOS */
1388 /* Spawn the child. (See ntproc.c:Spawnve). */
1389 cpid
= spawnve (_P_NOWAIT
, new_argv
[0], new_argv
, env
);
1390 reset_standard_handles (in
, out
, err
, handles
);
1392 /* An error occurred while trying to spawn the process. */
1393 report_file_error ("Spawning child process", Qnil
);
1395 #else /* not WINDOWSNT */
1396 /* execvp does not accept an environment arg so the only way
1397 to pass this environment is to set environ. Our caller
1398 is responsible for restoring the ambient value of environ. */
1400 execvp (new_argv
[0], new_argv
);
1402 emacs_write (1, "Can't exec program: ", 20);
1403 emacs_write (1, new_argv
[0], strlen (new_argv
[0]));
1404 emacs_write (1, "\n", 1);
1406 #endif /* not WINDOWSNT */
1407 #endif /* not MSDOS */
1410 /* Move the file descriptor FD so that its number is not less than MINFD.
1411 If the file descriptor is moved at all, the original is freed. */
1413 relocate_fd (fd
, minfd
)
1423 char *message1
= "Error while setting up child: ";
1424 char *errmessage
= strerror (errno
);
1425 char *message2
= "\n";
1426 emacs_write (2, message1
, strlen (message1
));
1427 emacs_write (2, errmessage
, strlen (errmessage
));
1428 emacs_write (2, message2
, strlen (message2
));
1431 /* Note that we hold the original FD open while we recurse,
1432 to guarantee we'll get a new FD if we need it. */
1433 new = relocate_fd (new, minfd
);
1440 getenv_internal_1 (var
, varlen
, value
, valuelen
, env
)
1447 for (; CONSP (env
); env
= XCDR (env
))
1449 Lisp_Object entry
= XCAR (env
);
1451 && SBYTES (entry
) >= varlen
1453 /* NT environment variables are case insensitive. */
1454 && ! strnicmp (SDATA (entry
), var
, varlen
)
1455 #else /* not WINDOWSNT */
1456 && ! bcmp (SDATA (entry
), var
, varlen
)
1457 #endif /* not WINDOWSNT */
1460 if (SBYTES (entry
) > varlen
&& SREF (entry
, varlen
) == '=')
1462 *value
= (char *) SDATA (entry
) + (varlen
+ 1);
1463 *valuelen
= SBYTES (entry
) - (varlen
+ 1);
1466 else if (SBYTES (entry
) == varlen
)
1468 /* Lone variable names in Vprocess_environment mean that
1469 variable should be removed from the environment. */
1479 getenv_internal (var
, varlen
, value
, valuelen
, frame
)
1486 /* Try to find VAR in Vprocess_environment first. */
1487 if (getenv_internal_1 (var
, varlen
, value
, valuelen
,
1488 Vprocess_environment
))
1489 return *value
? 1 : 0;
1491 /* For DISPLAY try to get the values from the frame or the initial env. */
1492 if (strcmp (var
, "DISPLAY") == 0)
1495 = Fframe_parameter (NILP (frame
) ? selected_frame
: frame
, Qdisplay
);
1496 if (STRINGP (display
))
1498 *value
= (char *) SDATA (display
);
1499 *valuelen
= SBYTES (display
);
1502 /* If still not found, Look for DISPLAY in Vinitial_environment. */
1503 if (getenv_internal_1 (var
, varlen
, value
, valuelen
,
1504 Vinitial_environment
))
1505 return *value
? 1 : 0;
1511 DEFUN ("getenv-internal", Fgetenv_internal
, Sgetenv_internal
, 1, 2, 0,
1512 doc
: /* Get the value of environment variable VARIABLE.
1513 VARIABLE should be a string. Value is nil if VARIABLE is undefined in
1514 the environment. Otherwise, value is a string.
1516 This function searches `process-environment' for VARIABLE. If it is
1517 not found there, then it continues the search in the environment list
1518 of the selected frame.
1520 If optional parameter ENV is a list, then search this list instead of
1521 `process-environment', and return t when encountering a negative entry.
1523 If it is a frame, then this function will ignore `process-environment' and
1524 will simply look up the variable in that frame's environment. */)
1526 Lisp_Object variable
, env
;
1531 CHECK_STRING (variable
);
1534 if (getenv_internal_1 (SDATA (variable
), SBYTES (variable
),
1535 &value
, &valuelen
, env
))
1536 return value
? make_string (value
, valuelen
) : Qt
;
1540 else if (getenv_internal (SDATA (variable
), SBYTES (variable
),
1541 &value
, &valuelen
, env
))
1542 return make_string (value
, valuelen
);
1547 /* A version of getenv that consults the Lisp environment lists,
1548 easily callable from C. */
1556 if (getenv_internal (var
, strlen (var
), &value
, &valuelen
, Qnil
))
1562 #endif /* not VMS */
1564 /* This is run before init_cmdargs. */
1569 char *data_dir
= egetenv ("EMACSDATA");
1570 char *doc_dir
= egetenv ("EMACSDOC");
1573 = Ffile_name_as_directory (build_string (data_dir
? data_dir
1576 = Ffile_name_as_directory (build_string (doc_dir
? doc_dir
1579 /* Check the EMACSPATH environment variable, defaulting to the
1580 PATH_EXEC path from epaths.h. */
1581 Vexec_path
= decode_env_path ("EMACSPATH", PATH_EXEC
);
1582 Vexec_directory
= Ffile_name_as_directory (Fcar (Vexec_path
));
1583 Vexec_path
= nconc2 (decode_env_path ("PATH", ""), Vexec_path
);
1586 /* This is run after init_cmdargs, when Vinstallation_directory is valid. */
1591 char *data_dir
= egetenv ("EMACSDATA");
1594 Lisp_Object tempdir
;
1596 if (!NILP (Vinstallation_directory
))
1598 /* Add to the path the lib-src subdir of the installation dir. */
1600 tem
= Fexpand_file_name (build_string ("lib-src"),
1601 Vinstallation_directory
);
1603 /* MSDOS uses wrapped binaries, so don't do this. */
1604 if (NILP (Fmember (tem
, Vexec_path
)))
1606 Vexec_path
= decode_env_path ("EMACSPATH", PATH_EXEC
);
1607 Vexec_path
= Fcons (tem
, Vexec_path
);
1608 Vexec_path
= nconc2 (decode_env_path ("PATH", ""), Vexec_path
);
1611 Vexec_directory
= Ffile_name_as_directory (tem
);
1612 #endif /* not DOS_NT */
1614 /* Maybe use ../etc as well as ../lib-src. */
1617 tem
= Fexpand_file_name (build_string ("etc"),
1618 Vinstallation_directory
);
1619 Vdoc_directory
= Ffile_name_as_directory (tem
);
1623 /* Look for the files that should be in etc. We don't use
1624 Vinstallation_directory, because these files are never installed
1625 near the executable, and they are never in the build
1626 directory when that's different from the source directory.
1628 Instead, if these files are not in the nominal place, we try the
1629 source directory. */
1632 Lisp_Object tem
, tem1
, srcdir
;
1634 srcdir
= Fexpand_file_name (build_string ("../src/"),
1635 build_string (PATH_DUMPLOADSEARCH
));
1636 tem
= Fexpand_file_name (build_string ("GNU"), Vdata_directory
);
1637 tem1
= Ffile_exists_p (tem
);
1638 if (!NILP (Fequal (srcdir
, Vinvocation_directory
)) || NILP (tem1
))
1641 newdir
= Fexpand_file_name (build_string ("../etc/"),
1642 build_string (PATH_DUMPLOADSEARCH
));
1643 tem
= Fexpand_file_name (build_string ("GNU"), newdir
);
1644 tem1
= Ffile_exists_p (tem
);
1646 Vdata_directory
= newdir
;
1654 tempdir
= Fdirectory_file_name (Vexec_directory
);
1655 if (access (SDATA (tempdir
), 0) < 0)
1656 dir_warning ("Warning: arch-dependent data dir (%s) does not exist.\n",
1660 tempdir
= Fdirectory_file_name (Vdata_directory
);
1661 if (access (SDATA (tempdir
), 0) < 0)
1662 dir_warning ("Warning: arch-independent data dir (%s) does not exist.\n",
1666 Vshell_file_name
= build_string ("*dcl*");
1668 sh
= (char *) getenv ("SHELL");
1669 Vshell_file_name
= build_string (sh
? sh
: "/bin/sh");
1673 Vtemp_file_name_pattern
= build_string ("tmp:emacsXXXXXX.");
1675 if (getenv ("TMPDIR"))
1677 char *dir
= getenv ("TMPDIR");
1678 Vtemp_file_name_pattern
1679 = Fexpand_file_name (build_string ("emacsXXXXXX"),
1680 build_string (dir
));
1683 Vtemp_file_name_pattern
= build_string ("/tmp/emacsXXXXXX");
1687 Vshared_game_score_directory
= Qnil
;
1689 Vshared_game_score_directory
= build_string (PATH_GAME
);
1690 if (NILP (Ffile_directory_p (Vshared_game_score_directory
)))
1691 Vshared_game_score_directory
= Qnil
;
1696 set_initial_environment ()
1698 register char **envp
;
1703 for (envp
= environ
; *envp
; envp
++)
1704 Vprocess_environment
= Fcons (build_string (*envp
),
1705 Vprocess_environment
);
1706 /* Ideally, the `copy' shouldn't be necessary, but it seems it's frequent
1707 to use `delete' and friends on process-environment. */
1708 Vinitial_environment
= Fcopy_sequence (Vprocess_environment
);
1716 Qbuffer_file_type
= intern ("buffer-file-type");
1717 staticpro (&Qbuffer_file_type
);
1720 DEFVAR_LISP ("shell-file-name", &Vshell_file_name
,
1721 doc
: /* *File name to load inferior shells from.
1722 Initialized from the SHELL environment variable, or to a system-dependent
1723 default if SHELL is not set. */);
1725 DEFVAR_LISP ("exec-path", &Vexec_path
,
1726 doc
: /* *List of directories to search programs to run in subprocesses.
1727 Each element is a string (directory name) or nil (try default directory). */);
1729 DEFVAR_LISP ("exec-suffixes", &Vexec_suffixes
,
1730 doc
: /* *List of suffixes to try to find executable file names.
1731 Each element is a string. */);
1732 Vexec_suffixes
= Qnil
;
1734 DEFVAR_LISP ("exec-directory", &Vexec_directory
,
1735 doc
: /* Directory for executables for Emacs to invoke.
1736 More generally, this includes any architecture-dependent files
1737 that are built and installed from the Emacs distribution. */);
1739 DEFVAR_LISP ("data-directory", &Vdata_directory
,
1740 doc
: /* Directory of machine-independent files that come with GNU Emacs.
1741 These are files intended for Emacs to use while it runs. */);
1743 DEFVAR_LISP ("doc-directory", &Vdoc_directory
,
1744 doc
: /* Directory containing the DOC file that comes with GNU Emacs.
1745 This is usually the same as `data-directory'. */);
1747 DEFVAR_LISP ("configure-info-directory", &Vconfigure_info_directory
,
1748 doc
: /* For internal use by the build procedure only.
1749 This is the name of the directory in which the build procedure installed
1750 Emacs's info files; the default value for `Info-default-directory-list'
1752 Vconfigure_info_directory
= build_string (PATH_INFO
);
1754 DEFVAR_LISP ("shared-game-score-directory", &Vshared_game_score_directory
,
1755 doc
: /* Directory of score files for games which come with GNU Emacs.
1756 If this variable is nil, then Emacs is unable to use a shared directory. */);
1758 Vshared_game_score_directory
= Qnil
;
1760 Vshared_game_score_directory
= build_string (PATH_GAME
);
1763 DEFVAR_LISP ("temp-file-name-pattern", &Vtemp_file_name_pattern
,
1764 doc
: /* Pattern for making names for temporary files.
1765 This is used by `call-process-region'. */);
1766 /* This variable is initialized in init_callproc. */
1768 DEFVAR_LISP ("initial-environment", &Vinitial_environment
,
1769 doc
: /* List of environment variables inherited from the parent process.
1770 Each element should be a string of the form ENVVARNAME=VALUE.
1771 The elements must normally be decoded (using `locale-coding-system') for use. */);
1772 Vinitial_environment
= Qnil
;
1774 DEFVAR_LISP ("process-environment", &Vprocess_environment
,
1775 doc
: /* List of overridden environment variables for subprocesses to inherit.
1776 Each element should be a string of the form ENVVARNAME=VALUE.
1778 Entries in this list take precedence to those in the frame-local
1779 environments. Therefore, let-binding `process-environment' is an easy
1780 way to temporarily change the value of an environment variable,
1781 irrespective of where it comes from. To use `process-environment' to
1782 remove an environment variable, include only its name in the list,
1785 This variable is set to nil when Emacs starts.
1787 If multiple entries define the same variable, the first one always
1790 Non-ASCII characters are encoded according to the initial value of
1791 `locale-coding-system', i.e. the elements must normally be decoded for
1794 See `setenv' and `getenv'. */);
1795 Vprocess_environment
= Qnil
;
1798 defsubr (&Scall_process
);
1799 defsubr (&Sgetenv_internal
);
1801 defsubr (&Scall_process_region
);
1804 /* arch-tag: 769b8045-1df7-4d2b-8968-e3fb49017f95
1805 (do not change this comment) */