1 /* Argument parsing and main program of GNU Make.
2 Copyright (C) 1988, 1989, 1990, 1991, 1994, 1995, 1996, 1997, 1998, 1999,
3 2002 Free Software Foundation, Inc.
4 This file is part of GNU Make.
6 GNU Make 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)
11 GNU Make 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.
16 You should have received a copy of the GNU General Public License
17 along with GNU Make; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
19 MA 02111-1307, USA. */
34 # include <proto/dos.h>
38 #include "pathstuff.h"
41 # include <sys/types.h>
42 # include <sys/wait.h>
44 #if defined(MAKE_JOBSERVER) && defined(HAVE_FCNTL_H)
49 int __stack
= 20000; /* Make sure we have 20K of stack space */
52 extern void init_dir
PARAMS ((void));
53 extern void remote_setup
PARAMS ((void));
54 extern void remote_cleanup
PARAMS ((void));
55 extern RETSIGTYPE fatal_error_signal
PARAMS ((int sig
));
57 extern void print_variable_data_base
PARAMS ((void));
58 extern void print_dir_data_base
PARAMS ((void));
59 extern void print_rule_data_base
PARAMS ((void));
60 extern void print_file_data_base
PARAMS ((void));
61 extern void print_vpath_data_base
PARAMS ((void));
63 #if defined HAVE_WAITPID || defined HAVE_WAIT3
64 # define HAVE_WAIT_NOHANG
71 # ifndef sun /* Sun has an incorrect decl in a header. */
72 extern void exit
PARAMS ((int)) __attribute__ ((noreturn
));
74 extern double atof ();
77 static void print_data_base
PARAMS ((void));
78 static void print_version
PARAMS ((void));
79 static void decode_switches
PARAMS ((int argc
, char **argv
, int env
));
80 static void decode_env_switches
PARAMS ((char *envar
, unsigned int len
));
81 static void define_makeflags
PARAMS ((int all
, int makefile
));
82 static char *quote_for_env
PARAMS ((char *out
, char *in
));
83 static void initialize_global_hash_tables
PARAMS ((void));
86 /* The structure that describes an accepted command switch. */
90 int c
; /* The switch character. */
92 enum /* Type of the value. */
94 flag
, /* Turn int flag on. */
95 flag_off
, /* Turn int flag off. */
96 string
, /* One string per switch. */
97 positive_int
, /* A positive integer. */
98 floating
, /* A floating-point number (double). */
102 char *value_ptr
; /* Pointer to the value-holding variable. */
104 unsigned int env
:1; /* Can come from MAKEFLAGS. */
105 unsigned int toenv
:1; /* Should be put in MAKEFLAGS. */
106 unsigned int no_makefile
:1; /* Don't propagate when remaking makefiles. */
108 char *noarg_value
; /* Pointer to value used if no argument is given. */
109 char *default_value
;/* Pointer to default value. */
111 char *long_name
; /* Long option name. */
114 /* True if C is a switch value that corresponds to a short option. */
116 #define short_option(c) ((c) <= CHAR_MAX)
118 /* The structure used to hold the list of strings given
119 in command switches of a type that takes string arguments. */
123 char **list
; /* Nil-terminated list of strings. */
124 unsigned int idx
; /* Index into above. */
125 unsigned int max
; /* Number of pointers allocated. */
129 /* The recognized command switches. */
131 /* Nonzero means do not print commands to be executed (-s). */
135 /* Nonzero means just touch the files
136 that would appear to need remaking (-t) */
140 /* Nonzero means just print what commands would need to be executed,
141 don't actually execute them (-n). */
145 /* Print debugging info (--debug). */
147 static struct stringlist
*db_flags
;
148 static int debug_flag
= 0;
153 /* Suspend make in main for a short time to allow debugger to attach */
155 int suspend_flag
= 0;
158 /* Environment variables override makefile definitions. */
160 int env_overrides
= 0;
162 /* Nonzero means ignore status codes returned by commands
163 executed to remake files. Just treat them all as successful (-i). */
165 int ignore_errors_flag
= 0;
167 /* Nonzero means don't remake anything, just print the data base
168 that results from reading the makefile (-p). */
170 int print_data_base_flag
= 0;
172 /* Nonzero means don't remake anything; just return a nonzero status
173 if the specified targets are not up to date (-q). */
175 int question_flag
= 0;
177 /* Nonzero means do not use any of the builtin rules (-r) / variables (-R). */
179 int no_builtin_rules_flag
= 0;
180 int no_builtin_variables_flag
= 0;
182 /* Nonzero means keep going even if remaking some file fails (-k). */
185 int default_keep_going_flag
= 0;
187 /* Nonzero means print directory before starting and when done (-w). */
189 int print_directory_flag
= 0;
191 /* Nonzero means ignore print_directory_flag and never print the directory.
192 This is necessary because print_directory_flag is set implicitly. */
194 int inhibit_print_directory_flag
= 0;
196 /* Nonzero means print version information. */
198 int print_version_flag
= 0;
200 /* List of makefiles given with -f switches. */
202 static struct stringlist
*makefiles
= 0;
204 /* Number of job slots (commands that can be run at once). */
206 unsigned int job_slots
= 1;
207 unsigned int default_job_slots
= 1;
209 /* Value of job_slots that means no limit. */
211 static unsigned int inf_jobs
= 0;
213 /* File descriptors for the jobs pipe. */
215 static struct stringlist
*jobserver_fds
= 0;
217 int job_fds
[2] = { -1, -1 };
220 /* Maximum load average at which multiple jobs will be run.
221 Negative values mean unlimited, while zero means limit to
222 zero load (which could be useful to start infinite jobs remotely
223 but one at a time locally). */
225 double max_load_average
= -1.0;
226 double default_load_average
= -1.0;
228 int max_load_average
= -1;
229 int default_load_average
= -1;
232 /* List of directories given with -C switches. */
234 static struct stringlist
*directories
= 0;
236 /* List of include directories given with -I switches. */
238 static struct stringlist
*include_directories
= 0;
240 /* List of files given with -o switches. */
242 static struct stringlist
*old_files
= 0;
244 /* List of files given with -W switches. */
246 static struct stringlist
*new_files
= 0;
248 /* If nonzero, we should just print usage and exit. */
250 static int print_usage_flag
= 0;
252 /* If nonzero, we should print a warning message
253 for each reference to an undefined variable. */
255 int warn_undefined_variables_flag
;
257 /* If nonzero, always build all targets, regardless of whether
258 they appear out of date or not. */
260 int always_make_flag
= 0;
262 /* The usage output. We write it this way to make life easier for the
263 translators, especially those trying to translate to right-to-left
264 languages like Hebrew. */
266 static const char *const usage
[] =
270 -b, -m Ignored for compatibility.\n"),
272 -B, --always-make Unconditionally make all targets.\n"),
274 -C DIRECTORY, --directory=DIRECTORY\n\
275 Change to DIRECTORY before doing anything.\n"),
277 -d Print lots of debugging information.\n"),
279 --debug[=FLAGS] Print various types of debugging information.\n"),
281 -e, --environment-overrides\n\
282 Environment variables override makefiles.\n"),
284 -f FILE, --file=FILE, --makefile=FILE\n\
285 Read FILE as a makefile.\n"),
287 -h, --help Print this message and exit.\n"),
289 -i, --ignore-errors Ignore errors from commands.\n"),
291 -I DIRECTORY, --include-dir=DIRECTORY\n\
292 Search DIRECTORY for included makefiles.\n"),
294 -j [N], --jobs[=N] Allow N jobs at once; infinite jobs with no arg.\n"),
296 -k, --keep-going Keep going when some targets can't be made.\n"),
298 -l [N], --load-average[=N], --max-load[=N]\n\
299 Don't start multiple jobs unless load is below N.\n"),
301 -n, --just-print, --dry-run, --recon\n\
302 Don't actually run any commands; just print them.\n"),
304 -o FILE, --old-file=FILE, --assume-old=FILE\n\
305 Consider FILE to be very old and don't remake it.\n"),
307 -p, --print-data-base Print make's internal database.\n"),
309 -q, --question Run no commands; exit status says if up to date.\n"),
311 -r, --no-builtin-rules Disable the built-in implicit rules.\n"),
313 -R, --no-builtin-variables Disable the built-in variable settings.\n"),
315 -s, --silent, --quiet Don't echo commands.\n"),
317 -S, --no-keep-going, --stop\n\
320 -t, --touch Touch targets instead of remaking them.\n"),
322 -v, --version Print the version number of make and exit.\n"),
324 -w, --print-directory Print the current directory.\n"),
326 --no-print-directory Turn off -w, even if it was turned on implicitly.\n"),
328 -W FILE, --what-if=FILE, --new-file=FILE, --assume-new=FILE\n\
329 Consider FILE to be infinitely new.\n"),
331 --warn-undefined-variables Warn when an undefined variable is referenced.\n"),
335 /* The table of command switches. */
337 static const struct command_switch switches
[] =
339 { 'b', ignore
, 0, 0, 0, 0, 0, 0, 0 },
340 { 'B', flag
, (char *) &always_make_flag
, 1, 1, 0, 0, 0, "always-make" },
341 { 'C', string
, (char *) &directories
, 0, 0, 0, 0, 0, "directory" },
342 { 'd', flag
, (char *) &debug_flag
, 1, 1, 0, 0, 0, 0 },
343 { CHAR_MAX
+1, string
, (char *) &db_flags
, 1, 1, 0, "basic", 0, "debug" },
345 { 'D', flag
, (char *) &suspend_flag
, 1, 1, 0, 0, 0, "suspend-for-debug" },
347 { 'e', flag
, (char *) &env_overrides
, 1, 1, 0, 0, 0,
348 "environment-overrides", },
349 { 'f', string
, (char *) &makefiles
, 0, 0, 0, 0, 0, "file" },
350 { 'h', flag
, (char *) &print_usage_flag
, 0, 0, 0, 0, 0, "help" },
351 { 'i', flag
, (char *) &ignore_errors_flag
, 1, 1, 0, 0, 0,
353 { 'I', string
, (char *) &include_directories
, 1, 1, 0, 0, 0,
355 { 'j', positive_int
, (char *) &job_slots
, 1, 1, 0, (char *) &inf_jobs
,
356 (char *) &default_job_slots
, "jobs" },
357 { CHAR_MAX
+2, string
, (char *) &jobserver_fds
, 1, 1, 0, 0, 0,
359 { 'k', flag
, (char *) &keep_going_flag
, 1, 1, 0, 0,
360 (char *) &default_keep_going_flag
, "keep-going" },
362 { 'l', floating
, (char *) &max_load_average
, 1, 1, 0,
363 (char *) &default_load_average
, (char *) &default_load_average
,
366 { 'l', positive_int
, (char *) &max_load_average
, 1, 1, 0,
367 (char *) &default_load_average
, (char *) &default_load_average
,
370 { 'm', ignore
, 0, 0, 0, 0, 0, 0, 0 },
371 { 'n', flag
, (char *) &just_print_flag
, 1, 1, 1, 0, 0, "just-print" },
372 { 'o', string
, (char *) &old_files
, 0, 0, 0, 0, 0, "old-file" },
373 { 'p', flag
, (char *) &print_data_base_flag
, 1, 1, 0, 0, 0,
375 { 'q', flag
, (char *) &question_flag
, 1, 1, 1, 0, 0, "question" },
376 { 'r', flag
, (char *) &no_builtin_rules_flag
, 1, 1, 0, 0, 0,
377 "no-builtin-rules" },
378 { 'R', flag
, (char *) &no_builtin_variables_flag
, 1, 1, 0, 0, 0,
379 "no-builtin-variables" },
380 { 's', flag
, (char *) &silent_flag
, 1, 1, 0, 0, 0, "silent" },
381 { 'S', flag_off
, (char *) &keep_going_flag
, 1, 1, 0, 0,
382 (char *) &default_keep_going_flag
, "no-keep-going" },
383 { 't', flag
, (char *) &touch_flag
, 1, 1, 1, 0, 0, "touch" },
384 { 'v', flag
, (char *) &print_version_flag
, 1, 1, 0, 0, 0, "version" },
385 { 'w', flag
, (char *) &print_directory_flag
, 1, 1, 0, 0, 0,
387 { CHAR_MAX
+3, flag
, (char *) &inhibit_print_directory_flag
, 1, 1, 0, 0, 0,
388 "no-print-directory" },
389 { 'W', string
, (char *) &new_files
, 0, 0, 0, 0, 0, "what-if" },
390 { CHAR_MAX
+4, flag
, (char *) &warn_undefined_variables_flag
, 1, 1, 0, 0, 0,
391 "warn-undefined-variables" },
395 /* Secondary long names for options. */
397 static struct option long_option_aliases
[] =
399 { "quiet", no_argument
, 0, 's' },
400 { "stop", no_argument
, 0, 'S' },
401 { "new-file", required_argument
, 0, 'W' },
402 { "assume-new", required_argument
, 0, 'W' },
403 { "assume-old", required_argument
, 0, 'o' },
404 { "max-load", optional_argument
, 0, 'l' },
405 { "dry-run", no_argument
, 0, 'n' },
406 { "recon", no_argument
, 0, 'n' },
407 { "makefile", required_argument
, 0, 'f' },
410 /* List of goal targets. */
412 static struct dep
*goals
, *lastgoal
;
414 /* List of variables which were defined on the command line
415 (or, equivalently, in MAKEFLAGS). */
417 struct command_variable
419 struct command_variable
*next
;
420 struct variable
*variable
;
422 static struct command_variable
*command_variables
;
424 /* The name we were invoked with. */
428 /* Our current directory before processing any -C options. */
430 char *directory_before_chdir
;
432 /* Our current directory after processing all -C options. */
434 char *starting_directory
;
436 /* Value of the MAKELEVEL variable at startup (or 0). */
438 unsigned int makelevel
;
440 /* First file defined in the makefile whose name does not
441 start with `.'. This is the default to remake if the
442 command line does not specify. */
444 struct file
*default_goal_file
;
446 /* Pointer to structure for the file .DEFAULT
447 whose commands are used for any file that has none of its own.
448 This is zero if the makefiles do not define .DEFAULT. */
450 struct file
*default_file
;
452 /* Nonzero if we have seen the magic `.POSIX' target.
453 This turns on pedantic compliance with POSIX.2. */
457 /* Nonzero if we have seen the `.NOTPARALLEL' target.
458 This turns off parallel builds for this invocation of make. */
462 /* Nonzero if some rule detected clock skew; we keep track so (a) we only
463 print one warning about it during the run, and (b) we can print a final
464 warning at the end of the run. */
466 int clock_skew_detected
;
468 /* Mask of signals that are being caught with fatal_error_signal. */
471 sigset_t fatal_signal_set
;
473 # ifdef HAVE_SIGSETMASK
474 int fatal_signal_mask
;
478 #if !defined HAVE_BSD_SIGNAL && !defined bsd_signal
479 # if !defined HAVE_SIGACTION
480 # define bsd_signal signal
482 typedef RETSIGTYPE (*bsd_signal_ret_t
) ();
484 static bsd_signal_ret_t
485 bsd_signal (int sig
, bsd_signal_ret_t func
)
487 struct sigaction act
, oact
;
488 act
.sa_handler
= func
;
489 act
.sa_flags
= SA_RESTART
;
490 sigemptyset (&act
.sa_mask
);
491 sigaddset (&act
.sa_mask
, sig
);
492 if (sigaction (sig
, &act
, &oact
) != 0)
494 return oact
.sa_handler
;
500 initialize_global_hash_tables (void)
502 init_hash_global_variable_set ();
504 hash_init_directories ();
505 hash_init_function_table ();
509 enter_command_line_file (char *name
)
512 fatal (NILF
, _("empty string invalid as file name"));
516 char *expanded
= tilde_expand (name
);
518 name
= expanded
; /* Memory leak; I don't care. */
521 /* This is also done in parse_file_seq, so this is redundant
522 for names read from makefiles. It is here for names passed
523 on the command line. */
524 while (name
[0] == '.' && name
[1] == '/' && name
[2] != '\0')
528 /* Skip following slashes: ".//foo" is "foo", not "/foo". */
534 /* It was all slashes! Move back to the dot and truncate
535 it after the first slash, so it becomes just "./". */
538 while (name
[0] != '.');
542 return enter_file (xstrdup (name
));
545 /* Toggle -d on receipt of SIGUSR1. */
548 debug_signal_handler (int sig
)
550 db_level
= db_level
? DB_NONE
: DB_BASIC
;
554 decode_debug_flags (void)
564 for (pp
=db_flags
->list
; *pp
; ++pp
)
570 switch (tolower (p
[0]))
576 db_level
|= DB_BASIC
;
579 db_level
|= DB_BASIC
| DB_IMPLICIT
;
585 db_level
|= DB_BASIC
| DB_MAKEFILES
;
588 db_level
|= DB_BASIC
| DB_VERBOSE
;
591 fatal (NILF
, _("unknown debug level specification `%s'"), p
);
594 while (*(++p
) != '\0')
595 if (*p
== ',' || *p
== ' ')
608 * HANDLE runtime exceptions by avoiding a requestor on the GUI. Capture
609 * exception and print it to stderr instead.
611 * If ! DB_VERBOSE, just print a simple message and exit.
612 * If DB_VERBOSE, print a more verbose message.
613 * If compiled for DEBUG, let exception pass through to GUI so that
614 * debuggers can attach.
617 handle_runtime_exceptions( struct _EXCEPTION_POINTERS
*exinfo
)
619 PEXCEPTION_RECORD exrec
= exinfo
->ExceptionRecord
;
620 LPSTR cmdline
= GetCommandLine();
621 LPSTR prg
= strtok(cmdline
, " ");
625 LPTSTR lpszStrings
[1];
628 if (! ISDB (DB_VERBOSE
))
631 _("%s: Interrupt/Exception caught (code = 0x%x, addr = 0x%x)\n"),
632 prg
, exrec
->ExceptionCode
, exrec
->ExceptionAddress
);
633 fprintf(stderr
, errmsg
);
638 _("\nUnhandled exception filter called from program %s\nExceptionCode = %x\nExceptionFlags = %x\nExceptionAddress = %x\n"),
639 prg
, exrec
->ExceptionCode
, exrec
->ExceptionFlags
,
640 exrec
->ExceptionAddress
);
642 if (exrec
->ExceptionCode
== EXCEPTION_ACCESS_VIOLATION
643 && exrec
->NumberParameters
>= 2)
644 sprintf(&errmsg
[strlen(errmsg
)],
645 (exrec
->ExceptionInformation
[0]
646 ? _("Access violation: write operation at address %x\n")
647 : _("Access violation: read operation at address %x\n")),
648 exrec
->ExceptionInformation
[1]);
650 /* turn this on if we want to put stuff in the event log too */
652 hEventSource
= RegisterEventSource(NULL
, "GNU Make");
653 lpszStrings
[0] = errmsg
;
655 if (hEventSource
!= NULL
)
657 ReportEvent(hEventSource
, /* handle of event source */
658 EVENTLOG_ERROR_TYPE
, /* event type */
659 0, /* event category */
661 NULL
, /* current user's SID */
662 1, /* strings in lpszStrings */
663 0, /* no bytes of raw data */
664 lpszStrings
, /* array of error strings */
665 NULL
); /* no raw data */
667 (VOID
) DeregisterEventSource(hEventSource
);
671 /* Write the error to stderr too */
672 fprintf(stderr
, errmsg
);
675 return EXCEPTION_CONTINUE_SEARCH
;
678 return (255); /* not reached */
683 * On WIN32 systems we don't have the luxury of a /bin directory that
684 * is mapped globally to every drive mounted to the system. Since make could
685 * be invoked from any drive, and we don't want to propogate /bin/sh
686 * to every single drive. Allow ourselves a chance to search for
687 * a value for default shell here (if the default path does not exist).
691 find_and_set_default_shell (char *token
)
696 extern char *default_shell
;
699 search_token
= default_shell
;
701 search_token
= token
;
703 if (!no_default_sh_exe
&&
704 (token
== NULL
|| !strcmp(search_token
, default_shell
))) {
705 /* no new information, path already set or known */
707 } else if (file_exists_p(search_token
)) {
708 /* search token path was found */
709 sprintf(sh_path
, "%s", search_token
);
710 default_shell
= xstrdup(w32ify(sh_path
,0));
712 (_("find_and_set_shell setting default_shell = %s\n"), default_shell
));
716 struct variable
*v
= lookup_variable ("Path", 4);
719 * Search Path for shell
725 ep
= strchr(p
, PATH_SEPARATOR_CHAR
);
730 if (dir_file_exists_p(p
, search_token
)) {
731 sprintf(sh_path
, "%s/%s", p
, search_token
);
732 default_shell
= xstrdup(w32ify(sh_path
,0));
734 *ep
= PATH_SEPARATOR_CHAR
;
739 *ep
= PATH_SEPARATOR_CHAR
;
743 ep
= strchr(p
, PATH_SEPARATOR_CHAR
);
746 /* be sure to check last element of Path */
747 if (p
&& *p
&& dir_file_exists_p(p
, search_token
)) {
748 sprintf(sh_path
, "%s/%s", p
, search_token
);
749 default_shell
= xstrdup(w32ify(sh_path
,0));
755 (_("find_and_set_shell path search set default_shell = %s\n"),
761 if (!unixy_shell
&& sh_found
&&
762 (strstr(default_shell
, "sh") || strstr(default_shell
, "SH"))) {
764 batch_mode_shell
= 0;
767 #ifdef BATCH_MODE_ONLY_SHELL
768 batch_mode_shell
= 1;
773 #endif /* WINDOWS32 */
778 msdos_return_to_initial_directory (void)
780 if (directory_before_chdir
)
781 chdir (directory_before_chdir
);
785 extern char *mktemp
PARAMS ((char *template));
786 extern int mkstemp
PARAMS ((char *template));
789 open_tmpfile(char **name
, const char *template)
793 #if defined HAVE_MKSTEMP || defined HAVE_MKTEMP
794 # define TEMPLATE_LEN strlen (template)
796 # define TEMPLATE_LEN L_tmpnam
798 *name
= xmalloc (TEMPLATE_LEN
+ 1);
799 strcpy (*name
, template);
801 #if defined HAVE_MKSTEMP && defined HAVE_FDOPEN
802 /* It's safest to use mkstemp(), if we can. */
803 fd
= mkstemp (*name
);
806 return fdopen (fd
, "w");
809 (void) mktemp (*name
);
811 (void) tmpnam (*name
);
815 /* Can't use mkstemp(), but guard against a race condition. */
816 fd
= open (*name
, O_CREAT
|O_EXCL
|O_WRONLY
, 0600);
819 return fdopen (fd
, "w");
821 /* Not secure, but what can we do? */
822 return fopen (*name
, "w");
830 main (int argc
, char **argv
)
833 main (int argc
, char **argv
, char **envp
)
836 static char *stdin_nm
= 0;
837 register struct file
*f
;
838 register unsigned int i
;
840 struct dep
*read_makefiles
;
841 PATH_VAR (current_directory
);
843 char *unix_path
= NULL
;
844 char *windows32_path
= NULL
;
846 SetUnhandledExceptionFilter(handle_runtime_exceptions
);
848 /* start off assuming we have no shell */
850 no_default_sh_exe
= 1;
853 /* Needed for OS/2 */
854 initialize_main(&argc
, &argv
);
856 default_goal_file
= 0;
859 #if defined (__MSDOS__) && !defined (_POSIX_SOURCE)
860 /* Request the most powerful version of `system', to
861 make up for the dumb default shell. */
862 __system_flags
= (__system_redirect
864 | __system_allow_multiple_cmds
865 | __system_allow_long_cmds
866 | __system_handle_null_commands
867 | __system_emulate_chdir
);
871 /* Set up gettext/internationalization support. */
872 setlocale (LC_ALL
, "");
873 bindtextdomain (PACKAGE
, LOCALEDIR
);
874 textdomain (PACKAGE
);
877 sigemptyset (&fatal_signal_set
);
878 #define ADD_SIG(sig) sigaddset (&fatal_signal_set, sig)
880 #ifdef HAVE_SIGSETMASK
881 fatal_signal_mask
= 0;
882 #define ADD_SIG(sig) fatal_signal_mask |= sigmask (sig)
888 #define FATAL_SIG(sig) \
889 if (bsd_signal (sig, fatal_error_signal) == SIG_IGN) \
890 bsd_signal (sig, SIG_IGN); \
904 /* Windows 9X delivers FP exceptions in child programs to their
905 parent! We don't want Make to die when a child divides by zero,
906 so we work around that lossage by catching SIGFPE. */
911 FATAL_SIG (SIGDANGER
);
922 /* Do not ignore the child-death signal. This must be done before
923 any children could possibly be created; otherwise, the wait
924 functions won't work on systems with the SVR4 ECHILD brain
925 damage, if our invoker is ignoring this signal. */
927 #ifdef HAVE_WAIT_NOHANG
929 (void) bsd_signal (SIGCHLD
, SIG_DFL
);
931 # if defined SIGCLD && SIGCLD != SIGCHLD
932 (void) bsd_signal (SIGCLD
, SIG_DFL
);
936 /* Make sure stdout is line-buffered. */
939 # ifdef SETVBUF_REVERSED
940 setvbuf (stdout
, _IOLBF
, xmalloc (BUFSIZ
), BUFSIZ
);
941 # else /* setvbuf not reversed. */
942 /* Some buggy systems lose if we pass 0 instead of allocating ourselves. */
943 setvbuf (stdout
, (char *) 0, _IOLBF
, BUFSIZ
);
944 # endif /* setvbuf reversed. */
945 #elif HAVE_SETLINEBUF
947 #endif /* setlinebuf missing. */
949 /* Figure out where this program lives. */
953 if (argv
[0][0] == '\0')
958 program
= strrchr (argv
[0], ']');
960 program
= strrchr (argv
[0], '/');
962 #if defined(__MSDOS__) || defined(__EMX__)
964 program
= strrchr (argv
[0], '\\');
967 /* Some weird environments might pass us argv[0] with
968 both kinds of slashes; we must find the rightmost. */
969 char *p
= strrchr (argv
[0], '\\');
970 if (p
&& p
> program
)
973 if (program
== 0 && argv
[0][1] == ':')
974 program
= argv
[0] + 1;
982 /* Set up to access user data (files). */
985 initialize_global_hash_tables ();
987 /* Figure out where we are. */
990 if (getcwd_fs (current_directory
, GET_PATH_MAX
) == 0)
992 if (getcwd (current_directory
, GET_PATH_MAX
) == 0)
996 perror_with_name ("getcwd: ", "");
998 error (NILF
, "getwd: %s", current_directory
);
1000 current_directory
[0] = '\0';
1001 directory_before_chdir
= 0;
1004 directory_before_chdir
= xstrdup (current_directory
);
1006 /* Make sure we will return to the initial directory, come what may. */
1007 atexit (msdos_return_to_initial_directory
);
1010 /* Initialize the special variables. */
1011 define_variable (".VARIABLES", 10, "", o_default
, 0)->special
= 1;
1012 /* define_variable (".TARGETS", 8, "", o_default, 0); */
1014 /* Read in variables from the environment. It is important that this be
1015 done before $(MAKE) is figured out so its definitions will not be
1016 from the environment. */
1019 for (i
= 0; envp
[i
] != 0; ++i
)
1022 register char *ep
= envp
[i
];
1024 /* by default, everything gets defined and exported */
1030 if (!unix_path
&& strneq(envp
[i
], "PATH=", 5))
1032 else if (!windows32_path
&& !strnicmp(envp
[i
], "Path=", 5)) {
1033 do_not_define
= 1; /* it gets defined after loop exits */
1034 windows32_path
= ep
+1;
1037 /* The result of pointer arithmetic is cast to unsigned int for
1038 machines where ptrdiff_t is a different size that doesn't widen
1041 define_variable (envp
[i
], (unsigned int) (ep
- envp
[i
]),
1043 /* Force exportation of every variable culled from the environment.
1044 We used to rely on target_environment's v_default code to do this.
1045 But that does not work for the case where an environment variable
1046 is redefined in a makefile with `override'; it should then still
1047 be exported, because it was originally in the environment. */
1048 ->export
= v_export
;
1052 * Make sure that this particular spelling of 'Path' is available
1055 define_variable("Path", 4, windows32_path
, o_env
, 1)->export
= v_export
;
1057 define_variable("Path", 4, unix_path
, o_env
, 1)->export
= v_export
;
1059 define_variable("Path", 4, "", o_env
, 1)->export
= v_export
;
1062 * PATH defaults to Path iff PATH not found and Path is found.
1064 if (!unix_path
&& windows32_path
)
1065 define_variable("PATH", 4, windows32_path
, o_env
, 1)->export
= v_export
;
1067 #else /* For Amiga, read the ENV: device, ignoring all dirs */
1069 BPTR env
, file
, old
;
1072 __aligned
struct FileInfoBlock fib
;
1074 env
= Lock ("ENV:", ACCESS_READ
);
1077 old
= CurrentDir (DupLock(env
));
1078 Examine (env
, &fib
);
1080 while (ExNext (env
, &fib
))
1082 if (fib
.fib_DirEntryType
< 0) /* File */
1084 /* Define an empty variable. It will be filled in
1085 variable_lookup(). Makes startup quite a bit
1087 define_variable (fib
.fib_FileName
,
1088 strlen (fib
.fib_FileName
),
1089 "", o_env
, 1)->export
= v_export
;
1093 UnLock(CurrentDir(old
));
1098 /* Decode the switches. */
1100 decode_env_switches ("MAKEFLAGS", 9);
1102 /* People write things like:
1103 MFLAGS="CC=gcc -pipe" "CFLAGS=-g"
1104 and we set the -p, -i and -e switches. Doesn't seem quite right. */
1105 decode_env_switches ("MFLAGS", 6);
1107 decode_switches (argc
, argv
, 0);
1110 fprintf(stderr
, "%s (pid = %d)\n", argv
[0], GetCurrentProcessId());
1111 fprintf(stderr
, _("%s is suspending for 30 seconds..."), argv
[0]);
1113 fprintf(stderr
, _("done sleep(30). Continuing.\n"));
1117 decode_debug_flags ();
1119 /* Print version information. */
1121 if (print_version_flag
|| print_data_base_flag
|| db_level
)
1124 /* `make --version' is supposed to just print the version and exit. */
1125 if (print_version_flag
)
1129 /* Set the "MAKE_COMMAND" variable to the name we were invoked with.
1130 (If it is a relative pathname with a slash, prepend our directory name
1131 so the result will run the same program regardless of the current dir.
1132 If it is a name with no slash, we can only hope that PATH did not
1133 find it in the current directory.) */
1136 * Convert from backslashes to forward slashes for
1137 * programs like sh which don't like them. Shouldn't
1138 * matter if the path is one way or the other for
1141 if (strpbrk(argv
[0], "/:\\") ||
1142 strstr(argv
[0], "..") ||
1143 strneq(argv
[0], "//", 2))
1144 argv
[0] = xstrdup(w32ify(argv
[0],1));
1145 #else /* WINDOWS32 */
1146 #if defined (__MSDOS__) || defined (__EMX__)
1147 if (strchr (argv
[0], '\\'))
1151 argv
[0] = xstrdup (argv
[0]);
1152 for (p
= argv
[0]; *p
; p
++)
1156 /* If argv[0] is not in absolute form, prepend the current
1157 directory. This can happen when Make is invoked by another DJGPP
1158 program that uses a non-absolute name. */
1159 if (current_directory
[0] != '\0'
1161 && (argv
[0][0] != '/' && (argv
[0][0] == '\0' || argv
[0][1] != ':')))
1162 argv
[0] = concat (current_directory
, "/", argv
[0]);
1163 #else /* !__MSDOS__ */
1164 if (current_directory
[0] != '\0'
1165 && argv
[0] != 0 && argv
[0][0] != '/' && strchr (argv
[0], '/') != 0)
1166 argv
[0] = concat (current_directory
, "/", argv
[0]);
1167 #endif /* !__MSDOS__ */
1168 #endif /* WINDOWS32 */
1171 /* The extra indirection through $(MAKE_COMMAND) is done
1172 for hysterical raisins. */
1173 (void) define_variable ("MAKE_COMMAND", 12, argv
[0], o_default
, 0);
1174 (void) define_variable ("MAKE", 4, "$(MAKE_COMMAND)", o_default
, 1);
1176 if (command_variables
!= 0)
1178 struct command_variable
*cv
;
1180 unsigned int len
= 0;
1183 /* Figure out how much space will be taken up by the command-line
1184 variable definitions. */
1185 for (cv
= command_variables
; cv
!= 0; cv
= cv
->next
)
1188 len
+= 2 * strlen (v
->name
);
1192 len
+= 2 * strlen (v
->value
);
1196 /* Now allocate a buffer big enough and fill it. */
1197 p
= value
= (char *) alloca (len
);
1198 for (cv
= command_variables
; cv
!= 0; cv
= cv
->next
)
1201 p
= quote_for_env (p
, v
->name
);
1205 p
= quote_for_env (p
, v
->value
);
1208 p
[-1] = '\0'; /* Kill the final space and terminate. */
1210 /* Define an unchangeable variable with a name that no POSIX.2
1211 makefile could validly use for its own variable. */
1212 (void) define_variable ("-*-command-variables-*-", 23,
1213 value
, o_automatic
, 0);
1215 /* Define the variable; this will not override any user definition.
1216 Normally a reference to this variable is written into the value of
1217 MAKEFLAGS, allowing the user to override this value to affect the
1218 exported value of MAKEFLAGS. In POSIX-pedantic mode, we cannot
1219 allow the user's setting of MAKEOVERRIDES to affect MAKEFLAGS, so
1220 a reference to this hidden variable is written instead. */
1221 (void) define_variable ("MAKEOVERRIDES", 13,
1222 "${-*-command-variables-*-}", o_env
, 1);
1225 /* If there were -C flags, move ourselves about. */
1226 if (directories
!= 0)
1227 for (i
= 0; directories
->list
[i
] != 0; ++i
)
1229 char *dir
= directories
->list
[i
];
1232 char *expanded
= tilde_expand (dir
);
1236 if (chdir (dir
) < 0)
1237 pfatal_with_name (dir
);
1238 if (dir
!= directories
->list
[i
])
1244 * THIS BLOCK OF CODE MUST COME AFTER chdir() CALL ABOVE IN ORDER
1245 * TO NOT CONFUSE THE DEPENDENCY CHECKING CODE IN implicit.c.
1247 * The functions in dir.c can incorrectly cache information for "."
1248 * before we have changed directory and this can cause file
1249 * lookups to fail because the current directory (.) was pointing
1250 * at the wrong place when it was first evaluated.
1252 no_default_sh_exe
= !find_and_set_default_shell(NULL
);
1254 #endif /* WINDOWS32 */
1255 /* Figure out the level of recursion. */
1257 struct variable
*v
= lookup_variable (MAKELEVEL_NAME
, MAKELEVEL_LENGTH
);
1258 if (v
!= 0 && v
->value
[0] != '\0' && v
->value
[0] != '-')
1259 makelevel
= (unsigned int) atoi (v
->value
);
1264 /* Except under -s, always do -w in sub-makes and under -C. */
1265 if (!silent_flag
&& (directories
!= 0 || makelevel
> 0))
1266 print_directory_flag
= 1;
1268 /* Let the user disable that with --no-print-directory. */
1269 if (inhibit_print_directory_flag
)
1270 print_directory_flag
= 0;
1272 /* If -R was given, set -r too (doesn't make sense otherwise!) */
1273 if (no_builtin_variables_flag
)
1274 no_builtin_rules_flag
= 1;
1276 /* Construct the list of include directories to search. */
1278 construct_include_path (include_directories
== 0 ? (char **) 0
1279 : include_directories
->list
);
1281 /* Figure out where we are now, after chdir'ing. */
1282 if (directories
== 0)
1283 /* We didn't move, so we're still in the same place. */
1284 starting_directory
= current_directory
;
1288 if (getcwd_fs (current_directory
, GET_PATH_MAX
) == 0)
1290 if (getcwd (current_directory
, GET_PATH_MAX
) == 0)
1294 perror_with_name ("getcwd: ", "");
1296 error (NILF
, "getwd: %s", current_directory
);
1298 starting_directory
= 0;
1301 starting_directory
= current_directory
;
1304 (void) define_variable ("CURDIR", 6, current_directory
, o_default
, 0);
1306 /* Read any stdin makefiles into temporary files. */
1310 register unsigned int i
;
1311 for (i
= 0; i
< makefiles
->idx
; ++i
)
1312 if (makefiles
->list
[i
][0] == '-' && makefiles
->list
[i
][1] == '\0')
1314 /* This makefile is standard input. Since we may re-exec
1315 and thus re-read the makefiles, we read standard input
1316 into a temporary file and read from that. */
1318 char *template, *tmpdir
;
1321 fatal (NILF
, _("Makefile from standard input specified twice."));
1324 # define DEFAULT_TMPDIR "sys$scratch:"
1327 # define DEFAULT_TMPDIR P_tmpdir
1329 # define DEFAULT_TMPDIR "/tmp"
1332 #define DEFAULT_TMPFILE "GmXXXXXX"
1334 if (((tmpdir
= getenv ("TMPDIR")) == NULL
|| *tmpdir
== '\0')
1335 #if defined (__MSDOS__) || defined (WINDOWS32) || defined (__EMX__)
1336 /* These are also used commonly on these platforms. */
1337 && ((tmpdir
= getenv ("TEMP")) == NULL
|| *tmpdir
== '\0')
1338 && ((tmpdir
= getenv ("TMP")) == NULL
|| *tmpdir
== '\0')
1341 tmpdir
= DEFAULT_TMPDIR
;
1343 template = (char *) alloca (strlen (tmpdir
)
1344 + sizeof (DEFAULT_TMPFILE
) + 1);
1345 strcpy (template, tmpdir
);
1347 #ifdef HAVE_DOS_PATHS
1348 if (strchr ("/\\", template[strlen (template) - 1]) == NULL
)
1349 strcat (template, "/");
1352 if (template[strlen (template) - 1] != '/')
1353 strcat (template, "/");
1355 #endif /* !HAVE_DOS_PATHS */
1357 strcat (template, DEFAULT_TMPFILE
);
1358 outfile
= open_tmpfile (&stdin_nm
, template);
1360 pfatal_with_name (_("fopen (temporary file)"));
1361 while (!feof (stdin
))
1364 unsigned int n
= fread (buf
, 1, sizeof (buf
), stdin
);
1365 if (n
> 0 && fwrite (buf
, 1, n
, outfile
) != n
)
1366 pfatal_with_name (_("fwrite (temporary file)"));
1368 (void) fclose (outfile
);
1370 /* Replace the name that read_all_makefiles will
1371 see with the name of the temporary file. */
1372 makefiles
->list
[i
] = xstrdup (stdin_nm
);
1374 /* Make sure the temporary file will not be remade. */
1375 f
= enter_file (stdin_nm
);
1377 f
->update_status
= 0;
1378 f
->command_state
= cs_finished
;
1379 /* Can't be intermediate, or it'll be removed too early for
1381 f
->intermediate
= 0;
1386 #ifndef __EMX__ /* Don't use a SIGCHLD handler for OS/2 */
1387 #if defined(MAKE_JOBSERVER) || !defined(HAVE_WAIT_NOHANG)
1388 /* Set up to handle children dying. This must be done before
1389 reading in the makefiles so that `shell' function calls will work.
1391 If we don't have a hanging wait we have to fall back to old, broken
1392 functionality here and rely on the signal handler and counting
1395 If we're using the jobs pipe we need a signal handler so that
1396 SIGCHLD is not ignored; we need it to interrupt the read(2) of the
1397 jobserver pipe in job.c if we're waiting for a token.
1399 If none of these are true, we don't need a signal handler at all. */
1401 extern RETSIGTYPE child_handler
PARAMS ((int sig
));
1402 # if defined SIGCHLD
1403 bsd_signal (SIGCHLD
, child_handler
);
1405 # if defined SIGCLD && SIGCLD != SIGCHLD
1406 bsd_signal (SIGCLD
, child_handler
);
1412 /* Let the user send us SIGUSR1 to toggle the -d flag during the run. */
1414 bsd_signal (SIGUSR1
, debug_signal_handler
);
1417 /* Define the initial list of suffixes for old-style rules. */
1419 set_default_suffixes ();
1421 /* Define the file rules for the built-in suffix rules. These will later
1422 be converted into pattern rules. We used to do this in
1423 install_default_implicit_rules, but since that happens after reading
1424 makefiles, it results in the built-in pattern rules taking precedence
1425 over makefile-specified suffix rules, which is wrong. */
1427 install_default_suffix_rules ();
1429 /* Define some internal and special variables. */
1431 define_automatic_variables ();
1433 /* Set up the MAKEFLAGS and MFLAGS variables
1434 so makefiles can look at them. */
1436 define_makeflags (0, 0);
1438 /* Define the default variables. */
1439 define_default_variables ();
1441 /* Read all the makefiles. */
1443 default_file
= enter_file (".DEFAULT");
1446 = read_all_makefiles (makefiles
== 0 ? (char **) 0 : makefiles
->list
);
1449 /* look one last time after reading all Makefiles */
1450 if (no_default_sh_exe
)
1451 no_default_sh_exe
= !find_and_set_default_shell(NULL
);
1453 if (no_default_sh_exe
&& job_slots
!= 1) {
1454 error (NILF
, _("Do not specify -j or --jobs if sh.exe is not available."));
1455 error (NILF
, _("Resetting make for single job mode."));
1458 #endif /* WINDOWS32 */
1460 #if defined (__MSDOS__) || defined (__EMX__)
1461 /* We need to know what kind of shell we will be using. */
1463 extern int _is_unixy_shell (const char *_path
);
1464 struct variable
*shv
= lookup_variable ("SHELL", 5);
1465 extern int unixy_shell
;
1466 extern char *default_shell
;
1468 if (shv
&& *shv
->value
)
1470 char *shell_path
= recursively_expand(shv
);
1472 if (shell_path
&& _is_unixy_shell (shell_path
))
1477 default_shell
= shell_path
;
1480 #endif /* __MSDOS__ || __EMX__ */
1482 /* Decode switches again, in case the variables were set by the makefile. */
1483 decode_env_switches ("MAKEFLAGS", 9);
1485 decode_env_switches ("MFLAGS", 6);
1488 #if defined (__MSDOS__) || defined (__EMX__)
1491 && _osmode
!= OS2_MODE
/* turn off -j if we are in DOS mode */
1496 _("Parallel jobs (-j) are not supported on this platform."));
1497 error (NILF
, _("Resetting to single job (-j1) mode."));
1502 #ifdef MAKE_JOBSERVER
1503 /* If the jobserver-fds option is seen, make sure that -j is reasonable. */
1509 for (i
=1; i
< jobserver_fds
->idx
; ++i
)
1510 if (!streq (jobserver_fds
->list
[0], jobserver_fds
->list
[i
]))
1511 fatal (NILF
, _("internal error: multiple --jobserver-fds options"));
1513 /* Now parse the fds string and make sure it has the proper format. */
1515 cp
= jobserver_fds
->list
[0];
1517 if (sscanf (cp
, "%d,%d", &job_fds
[0], &job_fds
[1]) != 2)
1519 _("internal error: invalid --jobserver-fds string `%s'"), cp
);
1521 /* The combination of a pipe + !job_slots means we're using the
1522 jobserver. If !job_slots and we don't have a pipe, we can start
1523 infinite jobs. If we see both a pipe and job_slots >0 that means the
1524 user set -j explicitly. This is broken; in this case obey the user
1525 (ignore the jobserver pipe for this make) but print a message. */
1529 _("warning: -jN forced in submake: disabling jobserver mode."));
1531 /* Create a duplicate pipe, that will be closed in the SIGCHLD
1532 handler. If this fails with EBADF, the parent has closed the pipe
1533 on us because it didn't think we were a submake. If so, print a
1534 warning then default to -j1. */
1536 else if ((job_rfd
= dup (job_fds
[0])) < 0)
1539 pfatal_with_name (_("dup jobserver"));
1542 _("warning: jobserver unavailable: using -j1. Add `+' to parent make rule."));
1550 job_fds
[0] = job_fds
[1] = -1;
1551 free (jobserver_fds
->list
);
1552 free (jobserver_fds
);
1557 /* If we have >1 slot but no jobserver-fds, then we're a top-level make.
1558 Set up the pipe and install the fds option for our children. */
1564 if (pipe (job_fds
) < 0 || (job_rfd
= dup (job_fds
[0])) < 0)
1565 pfatal_with_name (_("creating jobs pipe"));
1567 /* Every make assumes that it always has one job it can run. For the
1568 submakes it's the token they were given by their parent. For the
1569 top make, we just subtract one from the number the user wants. We
1570 want job_slots to be 0 to indicate we're using the jobserver. */
1576 EINTRLOOP (r
, write (job_fds
[1], &c
, 1));
1578 pfatal_with_name (_("init jobserver pipe"));
1581 /* Fill in the jobserver_fds struct for our children. */
1583 jobserver_fds
= (struct stringlist
*)
1584 xmalloc (sizeof (struct stringlist
));
1585 jobserver_fds
->list
= (char **) xmalloc (sizeof (char *));
1586 jobserver_fds
->list
[0] = xmalloc ((sizeof ("1024")*2)+1);
1588 sprintf (jobserver_fds
->list
[0], "%d,%d", job_fds
[0], job_fds
[1]);
1589 jobserver_fds
->idx
= 1;
1590 jobserver_fds
->max
= 1;
1594 /* Set up MAKEFLAGS and MFLAGS again, so they will be right. */
1596 define_makeflags (1, 0);
1598 /* Make each `struct dep' point at the `struct file' for the file
1599 depended on. Also do magic for special targets. */
1603 /* Convert old-style suffix rules to pattern rules. It is important to
1604 do this before installing the built-in pattern rules below, so that
1605 makefile-specified suffix rules take precedence over built-in pattern
1608 convert_to_pattern ();
1610 /* Install the default implicit pattern rules.
1611 This used to be done before reading the makefiles.
1612 But in that case, built-in pattern rules were in the chain
1613 before user-defined ones, so they matched first. */
1615 install_default_implicit_rules ();
1617 /* Compute implicit rule limits. */
1619 count_implicit_rule_limits ();
1621 /* Construct the listings of directories in VPATH lists. */
1623 build_vpath_lists ();
1625 /* Mark files given with -o flags as very old
1626 and as having been updated already, and files given with -W flags as
1627 brand new (time-stamp as far as possible into the future). */
1630 for (p
= old_files
->list
; *p
!= 0; ++p
)
1632 f
= enter_command_line_file (*p
);
1633 f
->last_mtime
= f
->mtime_before_update
= OLD_MTIME
;
1635 f
->update_status
= 0;
1636 f
->command_state
= cs_finished
;
1641 for (p
= new_files
->list
; *p
!= 0; ++p
)
1643 f
= enter_command_line_file (*p
);
1644 f
->last_mtime
= f
->mtime_before_update
= NEW_MTIME
;
1648 /* Initialize the remote job module. */
1651 if (read_makefiles
!= 0)
1653 /* Update any makefiles if necessary. */
1655 FILE_TIMESTAMP
*makefile_mtimes
= 0;
1656 unsigned int mm_idx
= 0;
1657 char **nargv
= argv
;
1659 int orig_db_level
= db_level
;
1661 if (! ISDB (DB_MAKEFILES
))
1664 DB (DB_BASIC
, (_("Updating makefiles....\n")));
1666 /* Remove any makefiles we don't want to try to update.
1667 Also record the current modtimes so we can compare them later. */
1669 register struct dep
*d
, *last
;
1674 register struct file
*f
= d
->file
;
1675 if (f
->double_colon
)
1676 for (f
= f
->double_colon
; f
!= NULL
; f
= f
->prev
)
1678 if (f
->deps
== 0 && f
->cmds
!= 0)
1680 /* This makefile is a :: target with commands, but
1681 no dependencies. So, it will always be remade.
1682 This might well cause an infinite loop, so don't
1683 try to remake it. (This will only happen if
1684 your makefiles are written exceptionally
1685 stupidly; but if you work for Athena, that's how
1686 you write your makefiles.) */
1689 (_("Makefile `%s' might loop; not remaking it.\n"),
1693 read_makefiles
= d
->next
;
1695 last
->next
= d
->next
;
1697 /* Free the storage. */
1700 d
= last
== 0 ? read_makefiles
: last
->next
;
1705 if (f
== NULL
|| !f
->double_colon
)
1707 makefile_mtimes
= (FILE_TIMESTAMP
*)
1708 xrealloc ((char *) makefile_mtimes
,
1709 (mm_idx
+ 1) * sizeof (FILE_TIMESTAMP
));
1710 makefile_mtimes
[mm_idx
++] = file_mtime_no_search (d
->file
);
1717 /* Set up `MAKEFLAGS' specially while remaking makefiles. */
1718 define_makeflags (1, 1);
1720 switch (update_goal_chain (read_makefiles
, 1))
1723 /* The only way this can happen is if the user specified -q and asked
1724 * for one of the makefiles to be remade as a target on the command
1725 * line. Since we're not actually updating anything with -q we can
1726 * treat this as "did nothing".
1734 /* Failed to update. Figure out if we care. */
1736 /* Nonzero if any makefile was successfully remade. */
1738 /* Nonzero if any makefile we care about failed
1739 in updating or could not be found at all. */
1741 register unsigned int i
;
1744 for (i
= 0, d
= read_makefiles
; d
!= 0; ++i
, d
= d
->next
)
1746 /* Reset the considered flag; we may need to look at the file
1747 again to print an error. */
1748 d
->file
->considered
= 0;
1750 if (d
->file
->updated
)
1752 /* This makefile was updated. */
1753 if (d
->file
->update_status
== 0)
1755 /* It was successfully updated. */
1756 any_remade
|= (file_mtime_no_search (d
->file
)
1757 != makefile_mtimes
[i
]);
1759 else if (! (d
->changed
& RM_DONTCARE
))
1761 FILE_TIMESTAMP mtime
;
1762 /* The update failed and this makefile was not
1763 from the MAKEFILES variable, so we care. */
1764 error (NILF
, _("Failed to remake makefile `%s'."),
1766 mtime
= file_mtime_no_search (d
->file
);
1767 any_remade
|= (mtime
!= NONEXISTENT_MTIME
1768 && mtime
!= makefile_mtimes
[i
]);
1772 /* This makefile was not found at all. */
1773 if (! (d
->changed
& RM_DONTCARE
))
1775 /* This is a makefile we care about. See how much. */
1776 if (d
->changed
& RM_INCLUDED
)
1777 /* An included makefile. We don't need
1778 to die, but we do want to complain. */
1780 _("Included makefile `%s' was not found."),
1784 /* A normal makefile. We must die later. */
1785 error (NILF
, _("Makefile `%s' was not found"),
1791 /* Reset this to empty so we get the right error message below. */
1803 /* Updated successfully. Re-exec ourselves. */
1805 remove_intermediates (0);
1807 if (print_data_base_flag
)
1810 log_working_directory (0);
1814 /* These names might have changed. */
1815 register unsigned int i
, j
= 0;
1816 for (i
= 1; i
< argc
; ++i
)
1817 if (strneq (argv
[i
], "-f", 2)) /* XXX */
1819 char *p
= &argv
[i
][2];
1821 argv
[++i
] = makefiles
->list
[j
];
1823 argv
[i
] = concat ("-f", makefiles
->list
[j
], "");
1828 /* Add -o option for the stdin temporary file, if necessary. */
1831 nargv
= (char **) xmalloc ((nargc
+ 2) * sizeof (char *));
1832 bcopy ((char *) argv
, (char *) nargv
, argc
* sizeof (char *));
1833 nargv
[nargc
++] = concat ("-o", stdin_nm
, "");
1837 if (directories
!= 0 && directories
->idx
> 0)
1840 if (directory_before_chdir
!= 0)
1842 if (chdir (directory_before_chdir
) < 0)
1844 perror_with_name ("chdir", "");
1853 fatal (NILF
, _("Couldn't change back to original directory."));
1857 for (p
= environ
; *p
!= 0; ++p
)
1858 if ((*p
)[MAKELEVEL_LENGTH
] == '='
1859 && strneq (*p
, MAKELEVEL_NAME
, MAKELEVEL_LENGTH
))
1861 /* The SGI compiler apparently can't understand
1862 the concept of storing the result of a function
1863 in something other than a local variable. */
1865 sgi_loses
= (char *) alloca (40);
1867 sprintf (*p
, "%s=%u", MAKELEVEL_NAME
, makelevel
);
1875 len
= GetVar (MAKELEVEL_NAME
, buffer
, sizeof (buffer
), GVF_GLOBAL_ONLY
);
1879 sprintf (buffer
, "%u", makelevel
);
1880 SetVar (MAKELEVEL_NAME
, buffer
, -1, GVF_GLOBAL_ONLY
);
1885 if (ISDB (DB_BASIC
))
1888 fputs (_("Re-executing:"), stdout
);
1889 for (p
= nargv
; *p
!= 0; ++p
)
1897 /* Close the dup'd jobserver pipe if we opened one. */
1902 exec_command (nargv
);
1904 #elif defined (__EMX__)
1906 /* It is not possible to use execve() here because this
1907 would cause the parent process to be terminated with
1908 exit code 0 before the child process has been terminated.
1909 Therefore it may be the best solution simply to spawn the
1910 child process including all file handles and to wait for its
1914 pid
= child_execute_job(0, 1, nargv
, environ
);
1916 /* is this loop really necessary? */
1918 pid
= wait(&status
);
1920 /* use the exit code of the child process */
1921 exit(WIFEXITED(status
) ? WEXITSTATUS(status
) : EXIT_FAILURE
);
1924 exec_command (nargv
, environ
);
1929 #define BOGUS_UPDATE_STATUS 0
1930 assert (BOGUS_UPDATE_STATUS
);
1934 db_level
= orig_db_level
;
1937 /* Set up `MAKEFLAGS' again for the normal targets. */
1938 define_makeflags (1, 0);
1940 /* If there is a temp file from reading a makefile from stdin, get rid of
1942 if (stdin_nm
&& unlink (stdin_nm
) < 0 && errno
!= ENOENT
)
1943 perror_with_name (_("unlink (temporary file): "), stdin_nm
);
1948 /* If there were no command-line goals, use the default. */
1951 if (default_goal_file
!= 0)
1953 goals
= (struct dep
*) xmalloc (sizeof (struct dep
));
1956 goals
->ignore_mtime
= 0;
1957 goals
->file
= default_goal_file
;
1965 if (read_makefiles
== 0)
1966 fatal (NILF
, _("No targets specified and no makefile found"));
1968 fatal (NILF
, _("No targets"));
1971 /* Update the goals. */
1973 DB (DB_BASIC
, (_("Updating goal targets....\n")));
1975 switch (update_goal_chain (goals
, 0))
1978 /* Nothing happened. */
1980 /* Updated successfully. */
1981 status
= MAKE_SUCCESS
;
1984 /* We are under -q and would run some commands. */
1985 status
= MAKE_TROUBLE
;
1988 /* Updating failed. POSIX.2 specifies exit status >1 for this;
1989 but in VMS, there is only success and failure. */
1990 status
= MAKE_FAILURE
;
1996 /* If we detected some clock skew, generate one last warning */
1997 if (clock_skew_detected
)
1999 _("warning: Clock skew detected. Your build may be incomplete."));
2008 /* Parsing of arguments, decoding of switches. */
2010 static char options
[1 + sizeof (switches
) / sizeof (switches
[0]) * 3];
2011 static struct option long_options
[(sizeof (switches
) / sizeof (switches
[0])) +
2012 (sizeof (long_option_aliases
) /
2013 sizeof (long_option_aliases
[0]))];
2015 /* Fill in the string and vector for getopt. */
2017 init_switches (void)
2021 register unsigned int i
;
2023 if (options
[0] != '\0')
2029 /* Return switch and non-switch args in order, regardless of
2030 POSIXLY_CORRECT. Non-switch args are returned as option 1. */
2033 for (i
= 0; switches
[i
].c
!= '\0'; ++i
)
2035 long_options
[i
].name
= (switches
[i
].long_name
== 0 ? "" :
2036 switches
[i
].long_name
);
2037 long_options
[i
].flag
= 0;
2038 long_options
[i
].val
= switches
[i
].c
;
2039 if (short_option (switches
[i
].c
))
2040 *p
++ = switches
[i
].c
;
2041 switch (switches
[i
].type
)
2046 long_options
[i
].has_arg
= no_argument
;
2052 if (short_option (switches
[i
].c
))
2054 if (switches
[i
].noarg_value
!= 0)
2056 if (short_option (switches
[i
].c
))
2058 long_options
[i
].has_arg
= optional_argument
;
2061 long_options
[i
].has_arg
= required_argument
;
2066 for (c
= 0; c
< (sizeof (long_option_aliases
) /
2067 sizeof (long_option_aliases
[0]));
2069 long_options
[i
++] = long_option_aliases
[c
];
2070 long_options
[i
].name
= 0;
2074 handle_non_switch_argument (char *arg
, int env
)
2076 /* Non-option argument. It might be a variable definition. */
2078 if (arg
[0] == '-' && arg
[1] == '\0')
2079 /* Ignore plain `-' for compatibility. */
2081 v
= try_variable_definition (0, arg
, o_command
, 0);
2084 /* It is indeed a variable definition. Record a pointer to
2085 the variable for later use in define_makeflags. */
2086 struct command_variable
*cv
2087 = (struct command_variable
*) xmalloc (sizeof (*cv
));
2089 cv
->next
= command_variables
;
2090 command_variables
= cv
;
2094 /* Not an option or variable definition; it must be a goal
2095 target! Enter it as a file and add it to the dep chain of
2097 struct file
*f
= enter_command_line_file (arg
);
2102 goals
= (struct dep
*) xmalloc (sizeof (struct dep
));
2107 lastgoal
->next
= (struct dep
*) xmalloc (sizeof (struct dep
));
2108 lastgoal
= lastgoal
->next
;
2112 lastgoal
->ignore_mtime
= 0;
2115 /* Add this target name to the MAKECMDGOALS variable. */
2119 v
= lookup_variable ("MAKECMDGOALS", 12);
2124 /* Paste the old and new values together */
2125 unsigned int oldlen
, newlen
;
2127 oldlen
= strlen (v
->value
);
2128 newlen
= strlen (f
->name
);
2129 value
= (char *) alloca (oldlen
+ 1 + newlen
+ 1);
2130 bcopy (v
->value
, value
, oldlen
);
2131 value
[oldlen
] = ' ';
2132 bcopy (f
->name
, &value
[oldlen
+ 1], newlen
+ 1);
2134 define_variable ("MAKECMDGOALS", 12, value
, o_default
, 0);
2139 /* Print a nice usage method. */
2142 print_usage (int bad
)
2144 extern char *make_host
;
2145 const char *const *cpp
;
2148 if (print_version_flag
)
2151 usageto
= bad
? stderr
: stdout
;
2153 fprintf (usageto
, _("Usage: %s [options] [target] ...\n"), program
);
2155 for (cpp
= usage
; *cpp
; ++cpp
)
2156 fputs (_(*cpp
), usageto
);
2158 if (!remote_description
|| *remote_description
== '\0')
2159 fprintf (usageto
, _("\nThis program built for %s\n"), make_host
);
2161 fprintf (usageto
, _("\nThis program built for %s (%s)\n"),
2162 make_host
, remote_description
);
2164 fprintf (usageto
, _("Report bugs to <bug-make@gnu.org>\n"));
2167 /* Decode switches from ARGC and ARGV.
2168 They came from the environment if ENV is nonzero. */
2171 decode_switches (int argc
, char **argv
, int env
)
2174 register const struct command_switch
*cs
;
2175 register struct stringlist
*sl
;
2178 /* getopt does most of the parsing for us.
2179 First, get its vectors set up. */
2183 /* Let getopt produce error messages for the command line,
2184 but not for options from the environment. */
2186 /* Reset getopt's state. */
2189 while (optind
< argc
)
2191 /* Parse the next argument. */
2192 c
= getopt_long (argc
, argv
, options
, long_options
, (int *) 0);
2194 /* End of arguments, or "--" marker seen. */
2197 /* An argument not starting with a dash. */
2198 handle_non_switch_argument (optarg
, env
);
2200 /* Bad option. We will print a usage message and die later.
2201 But continue to parse the other options so the user can
2202 see all he did wrong. */
2205 for (cs
= switches
; cs
->c
!= '\0'; ++cs
)
2208 /* Whether or not we will actually do anything with
2209 this switch. We test this individually inside the
2210 switch below rather than just once outside it, so that
2211 options which are to be ignored still consume args. */
2212 int doit
= !env
|| cs
->env
;
2225 *(int *) cs
->value_ptr
= cs
->type
== flag
;
2233 optarg
= cs
->noarg_value
;
2235 sl
= *(struct stringlist
**) cs
->value_ptr
;
2238 sl
= (struct stringlist
*)
2239 xmalloc (sizeof (struct stringlist
));
2242 sl
->list
= (char **) xmalloc (5 * sizeof (char *));
2243 *(struct stringlist
**) cs
->value_ptr
= sl
;
2245 else if (sl
->idx
== sl
->max
- 1)
2248 sl
->list
= (char **)
2249 xrealloc ((char *) sl
->list
,
2250 sl
->max
* sizeof (char *));
2252 sl
->list
[sl
->idx
++] = optarg
;
2253 sl
->list
[sl
->idx
] = 0;
2257 /* See if we have an option argument; if we do require that
2258 it's all digits, not something like "10foo". */
2259 if (optarg
== 0 && argc
> optind
)
2262 for (cp
=argv
[optind
]; ISDIGIT (cp
[0]); ++cp
)
2265 optarg
= argv
[optind
++];
2273 int i
= atoi (optarg
);
2276 /* Yes, I realize we're repeating this in some cases. */
2277 for (cp
= optarg
; ISDIGIT (cp
[0]); ++cp
)
2280 if (i
< 1 || cp
[0] != '\0')
2282 error (NILF
, _("the `-%c' option requires a positive integral argument"),
2287 *(unsigned int *) cs
->value_ptr
= i
;
2290 *(unsigned int *) cs
->value_ptr
2291 = *(unsigned int *) cs
->noarg_value
;
2296 if (optarg
== 0 && optind
< argc
2297 && (ISDIGIT (argv
[optind
][0]) || argv
[optind
][0] == '.'))
2298 optarg
= argv
[optind
++];
2301 *(double *) cs
->value_ptr
2302 = (optarg
!= 0 ? atof (optarg
)
2303 : *(double *) cs
->noarg_value
);
2309 /* We've found the switch. Stop looking. */
2314 /* There are no more options according to getting getopt, but there may
2315 be some arguments left. Since we have asked for non-option arguments
2316 to be returned in order, this only happens when there is a "--"
2317 argument to prevent later arguments from being options. */
2318 while (optind
< argc
)
2319 handle_non_switch_argument (argv
[optind
++], env
);
2322 if (!env
&& (bad
|| print_usage_flag
))
2329 /* Decode switches from environment variable ENVAR (which is LEN chars long).
2330 We do this by chopping the value into a vector of words, prepending a
2331 dash to the first word if it lacks one, and passing the vector to
2335 decode_env_switches (char *envar
, unsigned int len
)
2337 char *varref
= (char *) alloca (2 + len
+ 2);
2342 /* Get the variable's value. */
2345 bcopy (envar
, &varref
[2], len
);
2346 varref
[2 + len
] = ')';
2347 varref
[2 + len
+ 1] = '\0';
2348 value
= variable_expand (varref
);
2350 /* Skip whitespace, and check for an empty value. */
2351 value
= next_token (value
);
2352 len
= strlen (value
);
2356 /* Allocate a vector that is definitely big enough. */
2357 argv
= (char **) alloca ((1 + len
+ 1) * sizeof (char *));
2359 /* Allocate a buffer to copy the value into while we split it into words
2360 and unquote it. We must use permanent storage for this because
2361 decode_switches may store pointers into the passed argument words. */
2362 p
= (char *) xmalloc (2 * len
);
2364 /* getopt will look at the arguments starting at ARGV[1].
2365 Prepend a spacer word. */
2369 while (*value
!= '\0')
2371 if (*value
== '\\' && value
[1] != '\0')
2372 ++value
; /* Skip the backslash. */
2373 else if (isblank ((unsigned char)*value
))
2375 /* End of the word. */
2380 while (isblank ((unsigned char)*value
));
2388 if (argv
[1][0] != '-' && strchr (argv
[1], '=') == 0)
2389 /* The first word doesn't start with a dash and isn't a variable
2390 definition. Add a dash and pass it along to decode_switches. We
2391 need permanent storage for this in case decode_switches saves
2392 pointers into the value. */
2393 argv
[1] = concat ("-", argv
[1], "");
2395 /* Parse those words. */
2396 decode_switches (argc
, argv
, 1);
2399 /* Quote the string IN so that it will be interpreted as a single word with
2400 no magic by decode_env_switches; also double dollar signs to avoid
2401 variable expansion in make itself. Write the result into OUT, returning
2402 the address of the next character to be written.
2403 Allocating space for OUT twice the length of IN is always sufficient. */
2406 quote_for_env (char *out
, char *in
)
2412 else if (isblank ((unsigned char)*in
) || *in
== '\\')
2420 /* Define the MAKEFLAGS and MFLAGS variables to reflect the settings of the
2421 command switches. Include options with args if ALL is nonzero.
2422 Don't include options with the `no_makefile' flag set if MAKEFILE. */
2425 define_makeflags (int all
, int makefile
)
2427 static const char ref
[] = "$(MAKEOVERRIDES)";
2428 static const char posixref
[] = "$(-*-command-variables-*-)";
2429 register const struct command_switch
*cs
;
2435 /* We will construct a linked list of `struct flag's describing
2436 all the flags which need to go in MAKEFLAGS. Then, once we
2437 know how many there are and their lengths, we can put them all
2438 together in a string. */
2443 const struct command_switch
*cs
;
2446 struct flag
*flags
= 0;
2447 unsigned int flagslen
= 0;
2448 #define ADD_FLAG(ARG, LEN) \
2450 struct flag *new = (struct flag *) alloca (sizeof (struct flag)); \
2453 new->next = flags; \
2455 if (new->arg == 0) \
2456 ++flagslen; /* Just a single flag letter. */ \
2458 flagslen += 1 + 1 + 1 + 1 + 3 * (LEN); /* " -x foo" */ \
2459 if (!short_option (cs->c)) \
2460 /* This switch has no single-letter version, so we use the long. */ \
2461 flagslen += 2 + strlen (cs->long_name); \
2464 for (cs
= switches
; cs
->c
!= '\0'; ++cs
)
2465 if (cs
->toenv
&& (!makefile
|| !cs
->no_makefile
))
2476 if (!*(int *) cs
->value_ptr
== (cs
->type
== flag_off
)
2477 && (cs
->default_value
== 0
2478 || *(int *) cs
->value_ptr
!= *(int *) cs
->default_value
))
2485 if ((cs
->default_value
!= 0
2486 && (*(unsigned int *) cs
->value_ptr
2487 == *(unsigned int *) cs
->default_value
)))
2489 else if (cs
->noarg_value
!= 0
2490 && (*(unsigned int *) cs
->value_ptr
==
2491 *(unsigned int *) cs
->noarg_value
))
2492 ADD_FLAG ("", 0); /* Optional value omitted; see below. */
2493 else if (cs
->c
== 'j')
2494 /* Special case for `-j'. */
2498 char *buf
= (char *) alloca (30);
2499 sprintf (buf
, "%u", *(unsigned int *) cs
->value_ptr
);
2500 ADD_FLAG (buf
, strlen (buf
));
2509 if (cs
->default_value
!= 0
2510 && (*(double *) cs
->value_ptr
2511 == *(double *) cs
->default_value
))
2513 else if (cs
->noarg_value
!= 0
2514 && (*(double *) cs
->value_ptr
2515 == *(double *) cs
->noarg_value
))
2516 ADD_FLAG ("", 0); /* Optional value omitted; see below. */
2519 char *buf
= (char *) alloca (100);
2520 sprintf (buf
, "%g", *(double *) cs
->value_ptr
);
2521 ADD_FLAG (buf
, strlen (buf
));
2530 struct stringlist
*sl
= *(struct stringlist
**) cs
->value_ptr
;
2533 /* Add the elements in reverse order, because
2534 all the flags get reversed below; and the order
2535 matters for some switches (like -I). */
2536 register unsigned int i
= sl
->idx
;
2538 ADD_FLAG (sl
->list
[i
], strlen (sl
->list
[i
]));
2544 flagslen
+= 4 + sizeof posixref
; /* Four more for the possible " -- ". */
2548 /* Construct the value in FLAGSTRING.
2549 We allocate enough space for a preceding dash and trailing null. */
2550 flagstring
= (char *) alloca (1 + flagslen
+ 1);
2551 bzero (flagstring
, 1 + flagslen
+ 1);
2557 /* Add the flag letter or name to the string. */
2558 if (short_option (flags
->cs
->c
))
2559 *p
++ = flags
->cs
->c
;
2568 strcpy (p
, flags
->cs
->long_name
);
2571 if (flags
->arg
!= 0)
2573 /* A flag that takes an optional argument which in this case is
2574 omitted is specified by ARG being "". We must distinguish
2575 because a following flag appended without an intervening " -"
2576 is considered the arg for the first. */
2577 if (flags
->arg
[0] != '\0')
2579 /* Add its argument too. */
2580 *p
++ = !short_option (flags
->cs
->c
) ? '=' : ' ';
2581 p
= quote_for_env (p
, flags
->arg
);
2584 /* Write a following space and dash, for the next flag. */
2588 else if (!short_option (flags
->cs
->c
))
2591 /* Long options must each go in their own word,
2592 so we write the following space and dash. */
2596 flags
= flags
->next
;
2599 /* Define MFLAGS before appending variable definitions. */
2601 if (p
== &flagstring
[1])
2603 flagstring
[0] = '\0';
2604 else if (p
[-1] == '-')
2606 /* Kill the final space and dash. */
2611 /* Terminate the string. */
2614 /* Since MFLAGS is not parsed for flags, there is no reason to
2615 override any makefile redefinition. */
2616 (void) define_variable ("MFLAGS", 6, flagstring
, o_env
, 1);
2618 if (all
&& command_variables
!= 0)
2620 /* Now write a reference to $(MAKEOVERRIDES), which contains all the
2621 command-line variable definitions. */
2623 if (p
== &flagstring
[1])
2624 /* No flags written, so elide the leading dash already written. */
2628 /* Separate the variables from the switches with a "--" arg. */
2631 /* We did not already write a trailing " -". */
2635 /* There is a trailing " -"; fill it out to " -- ". */
2640 /* Copy in the string. */
2643 bcopy (posixref
, p
, sizeof posixref
- 1);
2644 p
+= sizeof posixref
- 1;
2648 bcopy (ref
, p
, sizeof ref
- 1);
2649 p
+= sizeof ref
- 1;
2652 else if (p
== &flagstring
[1])
2657 else if (p
[-1] == '-')
2658 /* Kill the final space and dash. */
2660 /* Terminate the string. */
2663 v
= define_variable ("MAKEFLAGS", 9,
2664 /* If there are switches, omit the leading dash
2665 unless it is a single long option with two
2667 &flagstring
[(flagstring
[0] == '-'
2668 && flagstring
[1] != '-')
2670 /* This used to use o_env, but that lost when a
2671 makefile defined MAKEFLAGS. Makefiles set
2672 MAKEFLAGS to add switches, but we still want
2673 to redefine its value with the full set of
2674 switches. Of course, an override or command
2675 definition will still take precedence. */
2678 /* The first time we are called, set MAKEFLAGS to always be exported.
2679 We should not do this again on the second call, because that is
2680 after reading makefiles which might have done `unexport MAKEFLAGS'. */
2681 v
->export
= v_export
;
2684 /* Print version information. */
2687 print_version (void)
2689 static int printed_version
= 0;
2691 char *precede
= print_data_base_flag
? "# " : "";
2693 if (printed_version
)
2694 /* Do it only once. */
2697 /* Print this untranslated. The coding standards recommend translating the
2698 (C) to the copyright symbol, but this string is going to change every
2699 year, and none of the rest of it should be translated (including the
2700 word "Copyright", so it hardly seems worth it. */
2702 printf ("%sGNU Make %s\n\
2703 %sCopyright (C) 2002 Free Software Foundation, Inc.\n",
2704 precede
, version_string
, precede
);
2706 printf (_("%sThis is free software; see the source for copying conditions.\n\
2707 %sThere is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A\n\
2708 %sPARTICULAR PURPOSE.\n"),
2709 precede
, precede
, precede
);
2711 printed_version
= 1;
2713 /* Flush stdout so the user doesn't have to wait to see the
2714 version information while things are thought about. */
2718 /* Print a bunch of information about this and that. */
2721 print_data_base (void)
2725 when
= time ((time_t *) 0);
2726 printf (_("\n# Make data base, printed on %s"), ctime (&when
));
2728 print_variable_data_base ();
2729 print_dir_data_base ();
2730 print_rule_data_base ();
2731 print_file_data_base ();
2732 print_vpath_data_base ();
2734 when
= time ((time_t *) 0);
2735 printf (_("\n# Finished Make data base on %s\n"), ctime (&when
));
2738 /* Exit with STATUS, cleaning up as necessary. */
2743 static char dying
= 0;
2751 if (print_version_flag
)
2754 /* Wait for children to die. */
2755 for (err
= (status
!= 0); job_slots_used
> 0; err
= 0)
2756 reap_children (1, err
);
2758 /* Let the remote job module clean up its state. */
2761 /* Remove the intermediate files. */
2762 remove_intermediates (0);
2764 if (print_data_base_flag
)
2767 /* Try to move back to the original directory. This is essential on
2768 MS-DOS (where there is really only one process), and on Unix it
2769 puts core files in the original directory instead of the -C
2770 directory. Must wait until after remove_intermediates(), or unlinks
2771 of relative pathnames fail. */
2772 if (directory_before_chdir
!= 0)
2773 chdir (directory_before_chdir
);
2775 log_working_directory (0);
2781 /* Write a message indicating that we've just entered or
2782 left (according to ENTERING) the current directory. */
2785 log_working_directory (int entering
)
2787 static int entered
= 0;
2789 /* Print nothing without the flag. Don't print the entering message
2790 again if we already have. Don't print the leaving message if we
2791 haven't printed the entering message. */
2792 if (! print_directory_flag
|| entering
== entered
)
2797 if (print_data_base_flag
)
2798 fputs ("# ", stdout
);
2800 /* Use entire sentences to give the translators a fighting chance. */
2803 if (starting_directory
== 0)
2805 printf (_("%s: Entering an unknown directory"), program
);
2807 printf (_("%s: Leaving an unknown directory"), program
);
2810 printf (_("%s: Entering directory `%s'\n"),
2811 program
, starting_directory
);
2813 printf (_("%s: Leaving directory `%s'\n"),
2814 program
, starting_directory
);
2816 if (starting_directory
== 0)
2818 printf (_("%s[%u]: Entering an unknown directory"),
2819 program
, makelevel
);
2821 printf (_("%s[%u]: Leaving an unknown directory"),
2822 program
, makelevel
);
2825 printf (_("%s[%u]: Entering directory `%s'\n"),
2826 program
, makelevel
, starting_directory
);
2828 printf (_("%s[%u]: Leaving directory `%s'\n"),
2829 program
, makelevel
, starting_directory
);