1 /* Argument parsing and main program of GNU Make.
2 Copyright (C) 1988, 1989, 1990, 1991, 1994, 1995, 1996, 1997, 1998, 1999,
3 2002, 2003 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>
39 #include "pathstuff.h"
42 # include <sys/types.h>
43 # include <sys/wait.h>
50 int __stack
= 20000; /* Make sure we have 20K of stack space */
53 extern void init_dir
PARAMS ((void));
54 extern void remote_setup
PARAMS ((void));
55 extern void remote_cleanup
PARAMS ((void));
56 extern RETSIGTYPE fatal_error_signal
PARAMS ((int sig
));
58 extern void print_variable_data_base
PARAMS ((void));
59 extern void print_dir_data_base
PARAMS ((void));
60 extern void print_rule_data_base
PARAMS ((void));
61 extern void print_file_data_base
PARAMS ((void));
62 extern void print_vpath_data_base
PARAMS ((void));
64 #if defined HAVE_WAITPID || defined HAVE_WAIT3
65 # define HAVE_WAIT_NOHANG
72 # ifndef sun /* Sun has an incorrect decl in a header. */
73 extern void exit
PARAMS ((int)) __attribute__ ((noreturn
));
75 extern double atof ();
78 static void print_data_base
PARAMS ((void));
79 static void print_version
PARAMS ((void));
80 static void decode_switches
PARAMS ((int argc
, char **argv
, int env
));
81 static void decode_env_switches
PARAMS ((char *envar
, unsigned int len
));
82 static void define_makeflags
PARAMS ((int all
, int makefile
));
83 static char *quote_for_env
PARAMS ((char *out
, char *in
));
84 static void initialize_global_hash_tables
PARAMS ((void));
87 /* The structure that describes an accepted command switch. */
91 int c
; /* The switch character. */
93 enum /* Type of the value. */
95 flag
, /* Turn int flag on. */
96 flag_off
, /* Turn int flag off. */
97 string
, /* One string per switch. */
98 positive_int
, /* A positive integer. */
99 floating
, /* A floating-point number (double). */
100 ignore
/* Ignored. */
103 char *value_ptr
; /* Pointer to the value-holding variable. */
105 unsigned int env
:1; /* Can come from MAKEFLAGS. */
106 unsigned int toenv
:1; /* Should be put in MAKEFLAGS. */
107 unsigned int no_makefile
:1; /* Don't propagate when remaking makefiles. */
109 char *noarg_value
; /* Pointer to value used if no argument is given. */
110 char *default_value
;/* Pointer to default value. */
112 char *long_name
; /* Long option name. */
115 /* True if C is a switch value that corresponds to a short option. */
117 #define short_option(c) ((c) <= CHAR_MAX)
119 /* The structure used to hold the list of strings given
120 in command switches of a type that takes string arguments. */
124 char **list
; /* Nil-terminated list of strings. */
125 unsigned int idx
; /* Index into above. */
126 unsigned int max
; /* Number of pointers allocated. */
130 /* The recognized command switches. */
132 /* Nonzero means do not print commands to be executed (-s). */
136 /* Nonzero means just touch the files
137 that would appear to need remaking (-t) */
141 /* Nonzero means just print what commands would need to be executed,
142 don't actually execute them (-n). */
146 /* Print debugging info (--debug). */
148 static struct stringlist
*db_flags
;
149 static int debug_flag
= 0;
154 /* Suspend make in main for a short time to allow debugger to attach */
156 int suspend_flag
= 0;
159 /* Environment variables override makefile definitions. */
161 int env_overrides
= 0;
163 /* Nonzero means ignore status codes returned by commands
164 executed to remake files. Just treat them all as successful (-i). */
166 int ignore_errors_flag
= 0;
168 /* Nonzero means don't remake anything, just print the data base
169 that results from reading the makefile (-p). */
171 int print_data_base_flag
= 0;
173 /* Nonzero means don't remake anything; just return a nonzero status
174 if the specified targets are not up to date (-q). */
176 int question_flag
= 0;
178 /* Nonzero means do not use any of the builtin rules (-r) / variables (-R). */
180 int no_builtin_rules_flag
= 0;
181 int no_builtin_variables_flag
= 0;
183 /* Nonzero means keep going even if remaking some file fails (-k). */
186 int default_keep_going_flag
= 0;
188 /* Nonzero means print directory before starting and when done (-w). */
190 int print_directory_flag
= 0;
192 /* Nonzero means ignore print_directory_flag and never print the directory.
193 This is necessary because print_directory_flag is set implicitly. */
195 int inhibit_print_directory_flag
= 0;
197 /* Nonzero means print version information. */
199 int print_version_flag
= 0;
201 /* List of makefiles given with -f switches. */
203 static struct stringlist
*makefiles
= 0;
205 /* Number of job slots (commands that can be run at once). */
207 unsigned int job_slots
= 1;
208 unsigned int default_job_slots
= 1;
210 /* Value of job_slots that means no limit. */
212 static unsigned int inf_jobs
= 0;
214 /* File descriptors for the jobs pipe. */
216 static struct stringlist
*jobserver_fds
= 0;
218 int job_fds
[2] = { -1, -1 };
221 /* Maximum load average at which multiple jobs will be run.
222 Negative values mean unlimited, while zero means limit to
223 zero load (which could be useful to start infinite jobs remotely
224 but one at a time locally). */
226 double max_load_average
= -1.0;
227 double default_load_average
= -1.0;
229 int max_load_average
= -1;
230 int default_load_average
= -1;
233 /* List of directories given with -C switches. */
235 static struct stringlist
*directories
= 0;
237 /* List of include directories given with -I switches. */
239 static struct stringlist
*include_directories
= 0;
241 /* List of files given with -o switches. */
243 static struct stringlist
*old_files
= 0;
245 /* List of files given with -W switches. */
247 static struct stringlist
*new_files
= 0;
249 /* If nonzero, we should just print usage and exit. */
251 static int print_usage_flag
= 0;
253 /* If nonzero, we should print a warning message
254 for each reference to an undefined variable. */
256 int warn_undefined_variables_flag
;
258 /* If nonzero, always build all targets, regardless of whether
259 they appear out of date or not. */
261 int always_make_flag
= 0;
263 /* If nonzero, we're in the "try to rebuild makefiles" phase. */
265 int rebuilding_makefiles
= 0;
267 /* Remember the original value of the SHELL variable, from the environment. */
269 const char *env_shell
= 0;
272 /* The usage output. We write it this way to make life easier for the
273 translators, especially those trying to translate to right-to-left
274 languages like Hebrew. */
276 static const char *const usage
[] =
280 -b, -m Ignored for compatibility.\n"),
282 -B, --always-make Unconditionally make all targets.\n"),
284 -C DIRECTORY, --directory=DIRECTORY\n\
285 Change to DIRECTORY before doing anything.\n"),
287 -d Print lots of debugging information.\n"),
289 --debug[=FLAGS] Print various types of debugging information.\n"),
291 -e, --environment-overrides\n\
292 Environment variables override makefiles.\n"),
294 -f FILE, --file=FILE, --makefile=FILE\n\
295 Read FILE as a makefile.\n"),
297 -h, --help Print this message and exit.\n"),
299 -i, --ignore-errors Ignore errors from commands.\n"),
301 -I DIRECTORY, --include-dir=DIRECTORY\n\
302 Search DIRECTORY for included makefiles.\n"),
304 -j [N], --jobs[=N] Allow N jobs at once; infinite jobs with no arg.\n"),
306 -k, --keep-going Keep going when some targets can't be made.\n"),
308 -l [N], --load-average[=N], --max-load[=N]\n\
309 Don't start multiple jobs unless load is below N.\n"),
311 -n, --just-print, --dry-run, --recon\n\
312 Don't actually run any commands; just print them.\n"),
314 -o FILE, --old-file=FILE, --assume-old=FILE\n\
315 Consider FILE to be very old and don't remake it.\n"),
317 -p, --print-data-base Print make's internal database.\n"),
319 -q, --question Run no commands; exit status says if up to date.\n"),
321 -r, --no-builtin-rules Disable the built-in implicit rules.\n"),
323 -R, --no-builtin-variables Disable the built-in variable settings.\n"),
325 -s, --silent, --quiet Don't echo commands.\n"),
327 -S, --no-keep-going, --stop\n\
330 -t, --touch Touch targets instead of remaking them.\n"),
332 -v, --version Print the version number of make and exit.\n"),
334 -w, --print-directory Print the current directory.\n"),
336 --no-print-directory Turn off -w, even if it was turned on implicitly.\n"),
338 -W FILE, --what-if=FILE, --new-file=FILE, --assume-new=FILE\n\
339 Consider FILE to be infinitely new.\n"),
341 --warn-undefined-variables Warn when an undefined variable is referenced.\n"),
345 /* The table of command switches. */
347 static const struct command_switch switches
[] =
349 { 'b', ignore
, 0, 0, 0, 0, 0, 0, 0 },
350 { 'B', flag
, (char *) &always_make_flag
, 1, 1, 0, 0, 0, "always-make" },
351 { 'C', string
, (char *) &directories
, 0, 0, 0, 0, 0, "directory" },
352 { 'd', flag
, (char *) &debug_flag
, 1, 1, 0, 0, 0, 0 },
353 { CHAR_MAX
+1, string
, (char *) &db_flags
, 1, 1, 0, "basic", 0, "debug" },
355 { 'D', flag
, (char *) &suspend_flag
, 1, 1, 0, 0, 0, "suspend-for-debug" },
357 { 'e', flag
, (char *) &env_overrides
, 1, 1, 0, 0, 0,
358 "environment-overrides", },
359 { 'f', string
, (char *) &makefiles
, 0, 0, 0, 0, 0, "file" },
360 { 'h', flag
, (char *) &print_usage_flag
, 0, 0, 0, 0, 0, "help" },
361 { 'i', flag
, (char *) &ignore_errors_flag
, 1, 1, 0, 0, 0,
363 { 'I', string
, (char *) &include_directories
, 1, 1, 0, 0, 0,
365 { 'j', positive_int
, (char *) &job_slots
, 1, 1, 0, (char *) &inf_jobs
,
366 (char *) &default_job_slots
, "jobs" },
367 { CHAR_MAX
+2, string
, (char *) &jobserver_fds
, 1, 1, 0, 0, 0,
369 { 'k', flag
, (char *) &keep_going_flag
, 1, 1, 0, 0,
370 (char *) &default_keep_going_flag
, "keep-going" },
372 { 'l', floating
, (char *) &max_load_average
, 1, 1, 0,
373 (char *) &default_load_average
, (char *) &default_load_average
,
376 { 'l', positive_int
, (char *) &max_load_average
, 1, 1, 0,
377 (char *) &default_load_average
, (char *) &default_load_average
,
380 { 'm', ignore
, 0, 0, 0, 0, 0, 0, 0 },
381 { 'n', flag
, (char *) &just_print_flag
, 1, 1, 1, 0, 0, "just-print" },
382 { 'o', string
, (char *) &old_files
, 0, 0, 0, 0, 0, "old-file" },
383 { 'p', flag
, (char *) &print_data_base_flag
, 1, 1, 0, 0, 0,
385 { 'q', flag
, (char *) &question_flag
, 1, 1, 1, 0, 0, "question" },
386 { 'r', flag
, (char *) &no_builtin_rules_flag
, 1, 1, 0, 0, 0,
387 "no-builtin-rules" },
388 { 'R', flag
, (char *) &no_builtin_variables_flag
, 1, 1, 0, 0, 0,
389 "no-builtin-variables" },
390 { 's', flag
, (char *) &silent_flag
, 1, 1, 0, 0, 0, "silent" },
391 { 'S', flag_off
, (char *) &keep_going_flag
, 1, 1, 0, 0,
392 (char *) &default_keep_going_flag
, "no-keep-going" },
393 { 't', flag
, (char *) &touch_flag
, 1, 1, 1, 0, 0, "touch" },
394 { 'v', flag
, (char *) &print_version_flag
, 1, 1, 0, 0, 0, "version" },
395 { 'w', flag
, (char *) &print_directory_flag
, 1, 1, 0, 0, 0,
397 { CHAR_MAX
+3, flag
, (char *) &inhibit_print_directory_flag
, 1, 1, 0, 0, 0,
398 "no-print-directory" },
399 { 'W', string
, (char *) &new_files
, 0, 0, 0, 0, 0, "what-if" },
400 { CHAR_MAX
+4, flag
, (char *) &warn_undefined_variables_flag
, 1, 1, 0, 0, 0,
401 "warn-undefined-variables" },
405 /* Secondary long names for options. */
407 static struct option long_option_aliases
[] =
409 { "quiet", no_argument
, 0, 's' },
410 { "stop", no_argument
, 0, 'S' },
411 { "new-file", required_argument
, 0, 'W' },
412 { "assume-new", required_argument
, 0, 'W' },
413 { "assume-old", required_argument
, 0, 'o' },
414 { "max-load", optional_argument
, 0, 'l' },
415 { "dry-run", no_argument
, 0, 'n' },
416 { "recon", no_argument
, 0, 'n' },
417 { "makefile", required_argument
, 0, 'f' },
420 /* List of goal targets. */
422 static struct dep
*goals
, *lastgoal
;
424 /* List of variables which were defined on the command line
425 (or, equivalently, in MAKEFLAGS). */
427 struct command_variable
429 struct command_variable
*next
;
430 struct variable
*variable
;
432 static struct command_variable
*command_variables
;
434 /* The name we were invoked with. */
438 /* Our current directory before processing any -C options. */
440 char *directory_before_chdir
;
442 /* Our current directory after processing all -C options. */
444 char *starting_directory
;
446 /* Value of the MAKELEVEL variable at startup (or 0). */
448 unsigned int makelevel
;
450 /* First file defined in the makefile whose name does not
451 start with `.'. This is the default to remake if the
452 command line does not specify. */
454 struct file
*default_goal_file
;
456 /* Pointer to structure for the file .DEFAULT
457 whose commands are used for any file that has none of its own.
458 This is zero if the makefiles do not define .DEFAULT. */
460 struct file
*default_file
;
462 /* Nonzero if we have seen the magic `.POSIX' target.
463 This turns on pedantic compliance with POSIX.2. */
467 /* Nonzero if we have seen the `.NOTPARALLEL' target.
468 This turns off parallel builds for this invocation of make. */
472 /* Nonzero if some rule detected clock skew; we keep track so (a) we only
473 print one warning about it during the run, and (b) we can print a final
474 warning at the end of the run. */
476 int clock_skew_detected
;
478 /* Mask of signals that are being caught with fatal_error_signal. */
481 sigset_t fatal_signal_set
;
483 # ifdef HAVE_SIGSETMASK
484 int fatal_signal_mask
;
488 #if !defined HAVE_BSD_SIGNAL && !defined bsd_signal
489 # if !defined HAVE_SIGACTION
490 # define bsd_signal signal
492 typedef RETSIGTYPE (*bsd_signal_ret_t
) ();
494 static bsd_signal_ret_t
495 bsd_signal (int sig
, bsd_signal_ret_t func
)
497 struct sigaction act
, oact
;
498 act
.sa_handler
= func
;
499 act
.sa_flags
= SA_RESTART
;
500 sigemptyset (&act
.sa_mask
);
501 sigaddset (&act
.sa_mask
, sig
);
502 if (sigaction (sig
, &act
, &oact
) != 0)
504 return oact
.sa_handler
;
510 initialize_global_hash_tables (void)
512 init_hash_global_variable_set ();
514 hash_init_directories ();
515 hash_init_function_table ();
519 enter_command_line_file (char *name
)
522 fatal (NILF
, _("empty string invalid as file name"));
526 char *expanded
= tilde_expand (name
);
528 name
= expanded
; /* Memory leak; I don't care. */
531 /* This is also done in parse_file_seq, so this is redundant
532 for names read from makefiles. It is here for names passed
533 on the command line. */
534 while (name
[0] == '.' && name
[1] == '/' && name
[2] != '\0')
538 /* Skip following slashes: ".//foo" is "foo", not "/foo". */
544 /* It was all slashes! Move back to the dot and truncate
545 it after the first slash, so it becomes just "./". */
548 while (name
[0] != '.');
552 return enter_file (xstrdup (name
));
555 /* Toggle -d on receipt of SIGUSR1. */
559 debug_signal_handler (int sig UNUSED
)
561 db_level
= db_level
? DB_NONE
: DB_BASIC
;
566 decode_debug_flags (void)
576 for (pp
=db_flags
->list
; *pp
; ++pp
)
582 switch (tolower (p
[0]))
588 db_level
|= DB_BASIC
;
591 db_level
|= DB_BASIC
| DB_IMPLICIT
;
597 db_level
|= DB_BASIC
| DB_MAKEFILES
;
600 db_level
|= DB_BASIC
| DB_VERBOSE
;
603 fatal (NILF
, _("unknown debug level specification `%s'"), p
);
606 while (*(++p
) != '\0')
607 if (*p
== ',' || *p
== ' ')
620 * HANDLE runtime exceptions by avoiding a requestor on the GUI. Capture
621 * exception and print it to stderr instead.
623 * If ! DB_VERBOSE, just print a simple message and exit.
624 * If DB_VERBOSE, print a more verbose message.
625 * If compiled for DEBUG, let exception pass through to GUI so that
626 * debuggers can attach.
629 handle_runtime_exceptions( struct _EXCEPTION_POINTERS
*exinfo
)
631 PEXCEPTION_RECORD exrec
= exinfo
->ExceptionRecord
;
632 LPSTR cmdline
= GetCommandLine();
633 LPSTR prg
= strtok(cmdline
, " ");
637 LPTSTR lpszStrings
[1];
640 if (! ISDB (DB_VERBOSE
))
643 _("%s: Interrupt/Exception caught (code = 0x%x, addr = 0x%x)\n"),
644 prg
, exrec
->ExceptionCode
, exrec
->ExceptionAddress
);
645 fprintf(stderr
, errmsg
);
650 _("\nUnhandled exception filter called from program %s\nExceptionCode = %x\nExceptionFlags = %x\nExceptionAddress = %x\n"),
651 prg
, exrec
->ExceptionCode
, exrec
->ExceptionFlags
,
652 exrec
->ExceptionAddress
);
654 if (exrec
->ExceptionCode
== EXCEPTION_ACCESS_VIOLATION
655 && exrec
->NumberParameters
>= 2)
656 sprintf(&errmsg
[strlen(errmsg
)],
657 (exrec
->ExceptionInformation
[0]
658 ? _("Access violation: write operation at address %x\n")
659 : _("Access violation: read operation at address %x\n")),
660 exrec
->ExceptionInformation
[1]);
662 /* turn this on if we want to put stuff in the event log too */
664 hEventSource
= RegisterEventSource(NULL
, "GNU Make");
665 lpszStrings
[0] = errmsg
;
667 if (hEventSource
!= NULL
)
669 ReportEvent(hEventSource
, /* handle of event source */
670 EVENTLOG_ERROR_TYPE
, /* event type */
671 0, /* event category */
673 NULL
, /* current user's SID */
674 1, /* strings in lpszStrings */
675 0, /* no bytes of raw data */
676 lpszStrings
, /* array of error strings */
677 NULL
); /* no raw data */
679 (VOID
) DeregisterEventSource(hEventSource
);
683 /* Write the error to stderr too */
684 fprintf(stderr
, errmsg
);
687 return EXCEPTION_CONTINUE_SEARCH
;
690 return (255); /* not reached */
695 * On WIN32 systems we don't have the luxury of a /bin directory that
696 * is mapped globally to every drive mounted to the system. Since make could
697 * be invoked from any drive, and we don't want to propogate /bin/sh
698 * to every single drive. Allow ourselves a chance to search for
699 * a value for default shell here (if the default path does not exist).
703 find_and_set_default_shell (char *token
)
709 extern char *default_shell
;
712 search_token
= default_shell
;
714 search_token
= token
;
717 /* If the user explicitly requests the DOS cmd shell, obey that request.
718 However, make sure that's what they really want by requiring the value
719 of SHELL either equal, or have a final path element of, "cmd" or
720 "cmd.exe" case-insensitive. */
721 tokend
= search_token
+ strlen (search_token
) - 3;
722 if (((tokend
== search_token
723 || (tokend
> search_token
724 && (tokend
[-1] == '/' || tokend
[-1] == '\\')))
725 && !strcmpi (tokend
, "cmd"))
726 || ((tokend
- 4 == search_token
727 || (tokend
- 4 > search_token
728 && (tokend
[-5] == '/' || tokend
[-5] == '\\')))
729 && !strcmpi (tokend
- 4, "cmd.exe"))) {
730 batch_mode_shell
= 1;
733 } else if (!no_default_sh_exe
&&
734 (token
== NULL
|| !strcmp (search_token
, default_shell
))) {
735 /* no new information, path already set or known */
737 } else if (file_exists_p(search_token
)) {
738 /* search token path was found */
739 sprintf(sh_path
, "%s", search_token
);
740 default_shell
= xstrdup(w32ify(sh_path
,0));
742 (_("find_and_set_shell setting default_shell = %s\n"), default_shell
));
746 struct variable
*v
= lookup_variable ("Path", 4);
749 * Search Path for shell
755 ep
= strchr(p
, PATH_SEPARATOR_CHAR
);
760 if (dir_file_exists_p(p
, search_token
)) {
761 sprintf(sh_path
, "%s/%s", p
, search_token
);
762 default_shell
= xstrdup(w32ify(sh_path
,0));
764 *ep
= PATH_SEPARATOR_CHAR
;
769 *ep
= PATH_SEPARATOR_CHAR
;
773 ep
= strchr(p
, PATH_SEPARATOR_CHAR
);
776 /* be sure to check last element of Path */
777 if (p
&& *p
&& dir_file_exists_p(p
, search_token
)) {
778 sprintf(sh_path
, "%s/%s", p
, search_token
);
779 default_shell
= xstrdup(w32ify(sh_path
,0));
785 (_("find_and_set_shell path search set default_shell = %s\n"),
791 if (!unixy_shell
&& sh_found
&&
792 (strstr(default_shell
, "sh") || strstr(default_shell
, "SH"))) {
794 batch_mode_shell
= 0;
797 #ifdef BATCH_MODE_ONLY_SHELL
798 batch_mode_shell
= 1;
803 #endif /* WINDOWS32 */
808 msdos_return_to_initial_directory (void)
810 if (directory_before_chdir
)
811 chdir (directory_before_chdir
);
815 extern char *mktemp
PARAMS ((char *template));
816 extern int mkstemp
PARAMS ((char *template));
819 open_tmpfile(char **name
, const char *template)
823 #if defined HAVE_MKSTEMP || defined HAVE_MKTEMP
824 # define TEMPLATE_LEN strlen (template)
826 # define TEMPLATE_LEN L_tmpnam
828 *name
= xmalloc (TEMPLATE_LEN
+ 1);
829 strcpy (*name
, template);
831 #if defined HAVE_MKSTEMP && defined HAVE_FDOPEN
832 /* It's safest to use mkstemp(), if we can. */
833 fd
= mkstemp (*name
);
836 return fdopen (fd
, "w");
839 (void) mktemp (*name
);
841 (void) tmpnam (*name
);
845 /* Can't use mkstemp(), but guard against a race condition. */
846 fd
= open (*name
, O_CREAT
|O_EXCL
|O_WRONLY
, 0600);
849 return fdopen (fd
, "w");
851 /* Not secure, but what can we do? */
852 return fopen (*name
, "w");
860 main (int argc
, char **argv
)
863 main (int argc
, char **argv
, char **envp
)
866 static char *stdin_nm
= 0;
869 int makefile_status
= MAKE_SUCCESS
;
871 struct dep
*read_makefiles
;
872 PATH_VAR (current_directory
);
874 char *unix_path
= NULL
;
875 char *windows32_path
= NULL
;
877 SetUnhandledExceptionFilter(handle_runtime_exceptions
);
879 /* start off assuming we have no shell */
881 no_default_sh_exe
= 1;
884 /* Needed for OS/2 */
885 initialize_main(&argc
, &argv
);
887 default_goal_file
= 0;
890 #if defined (__MSDOS__) && !defined (_POSIX_SOURCE)
891 /* Request the most powerful version of `system', to
892 make up for the dumb default shell. */
893 __system_flags
= (__system_redirect
895 | __system_allow_multiple_cmds
896 | __system_allow_long_cmds
897 | __system_handle_null_commands
898 | __system_emulate_chdir
);
902 /* Set up gettext/internationalization support. */
903 setlocale (LC_ALL
, "");
904 bindtextdomain (PACKAGE
, LOCALEDIR
);
905 textdomain (PACKAGE
);
908 sigemptyset (&fatal_signal_set
);
909 #define ADD_SIG(sig) sigaddset (&fatal_signal_set, sig)
911 #ifdef HAVE_SIGSETMASK
912 fatal_signal_mask
= 0;
913 #define ADD_SIG(sig) fatal_signal_mask |= sigmask (sig)
919 #define FATAL_SIG(sig) \
920 if (bsd_signal (sig, fatal_error_signal) == SIG_IGN) \
921 bsd_signal (sig, SIG_IGN); \
935 /* Windows 9X delivers FP exceptions in child programs to their
936 parent! We don't want Make to die when a child divides by zero,
937 so we work around that lossage by catching SIGFPE. */
942 FATAL_SIG (SIGDANGER
);
953 /* Do not ignore the child-death signal. This must be done before
954 any children could possibly be created; otherwise, the wait
955 functions won't work on systems with the SVR4 ECHILD brain
956 damage, if our invoker is ignoring this signal. */
958 #ifdef HAVE_WAIT_NOHANG
960 (void) bsd_signal (SIGCHLD
, SIG_DFL
);
962 # if defined SIGCLD && SIGCLD != SIGCHLD
963 (void) bsd_signal (SIGCLD
, SIG_DFL
);
967 /* Make sure stdout is line-buffered. */
970 # ifdef SETVBUF_REVERSED
971 setvbuf (stdout
, _IOLBF
, xmalloc (BUFSIZ
), BUFSIZ
);
972 # else /* setvbuf not reversed. */
973 /* Some buggy systems lose if we pass 0 instead of allocating ourselves. */
974 setvbuf (stdout
, (char *) 0, _IOLBF
, BUFSIZ
);
975 # endif /* setvbuf reversed. */
976 #elif HAVE_SETLINEBUF
978 #endif /* setlinebuf missing. */
980 /* Figure out where this program lives. */
984 if (argv
[0][0] == '\0')
989 program
= strrchr (argv
[0], ']');
991 program
= strrchr (argv
[0], '/');
993 #if defined(__MSDOS__) || defined(__EMX__)
995 program
= strrchr (argv
[0], '\\');
998 /* Some weird environments might pass us argv[0] with
999 both kinds of slashes; we must find the rightmost. */
1000 char *p
= strrchr (argv
[0], '\\');
1001 if (p
&& p
> program
)
1004 if (program
== 0 && argv
[0][1] == ':')
1005 program
= argv
[0] + 1;
1013 /* Set up to access user data (files). */
1016 initialize_global_hash_tables ();
1018 /* Figure out where we are. */
1021 if (getcwd_fs (current_directory
, GET_PATH_MAX
) == 0)
1023 if (getcwd (current_directory
, GET_PATH_MAX
) == 0)
1027 perror_with_name ("getcwd: ", "");
1029 error (NILF
, "getwd: %s", current_directory
);
1031 current_directory
[0] = '\0';
1032 directory_before_chdir
= 0;
1035 directory_before_chdir
= xstrdup (current_directory
);
1037 /* Make sure we will return to the initial directory, come what may. */
1038 atexit (msdos_return_to_initial_directory
);
1041 /* Initialize the special variables. */
1042 define_variable (".VARIABLES", 10, "", o_default
, 0)->special
= 1;
1043 /* define_variable (".TARGETS", 8, "", o_default, 0); */
1045 /* Read in variables from the environment. It is important that this be
1046 done before $(MAKE) is figured out so its definitions will not be
1047 from the environment. */
1050 for (i
= 0; envp
[i
] != 0; ++i
)
1052 int do_not_define
= 0;
1058 if (!unix_path
&& strneq(envp
[i
], "PATH=", 5))
1060 else if (!windows32_path
&& !strnicmp(envp
[i
], "Path=", 5)) {
1061 do_not_define
= 1; /* it gets defined after loop exits */
1062 windows32_path
= ep
+1;
1065 /* The result of pointer arithmetic is cast to unsigned int for
1066 machines where ptrdiff_t is a different size that doesn't widen
1072 v
= define_variable (envp
[i
], (unsigned int) (ep
- envp
[i
]),
1074 /* Force exportation of every variable culled from the environment.
1075 We used to rely on target_environment's v_default code to do this.
1076 But that does not work for the case where an environment variable
1077 is redefined in a makefile with `override'; it should then still
1078 be exported, because it was originally in the environment. */
1079 v
->export
= v_export
;
1081 /* Another wrinkle is that POSIX says the value of SHELL set in the
1082 makefile should not change the value of SHELL given to
1083 subprocesses, which seems silly to me but... */
1084 if (strncmp (envp
[i
], "SHELL=", 6) == 0)
1086 v
->export
= v_noexport
;
1087 env_shell
= xstrdup (ep
+ 1);
1093 * Make sure that this particular spelling of 'Path' is available
1096 define_variable("Path", 4, windows32_path
, o_env
, 1)->export
= v_export
;
1098 define_variable("Path", 4, unix_path
, o_env
, 1)->export
= v_export
;
1100 define_variable("Path", 4, "", o_env
, 1)->export
= v_export
;
1103 * PATH defaults to Path iff PATH not found and Path is found.
1105 if (!unix_path
&& windows32_path
)
1106 define_variable("PATH", 4, windows32_path
, o_env
, 1)->export
= v_export
;
1108 #else /* For Amiga, read the ENV: device, ignoring all dirs */
1110 BPTR env
, file
, old
;
1113 __aligned
struct FileInfoBlock fib
;
1115 env
= Lock ("ENV:", ACCESS_READ
);
1118 old
= CurrentDir (DupLock(env
));
1119 Examine (env
, &fib
);
1121 while (ExNext (env
, &fib
))
1123 if (fib
.fib_DirEntryType
< 0) /* File */
1125 /* Define an empty variable. It will be filled in
1126 variable_lookup(). Makes startup quite a bit
1128 define_variable (fib
.fib_FileName
,
1129 strlen (fib
.fib_FileName
),
1130 "", o_env
, 1)->export
= v_export
;
1134 UnLock(CurrentDir(old
));
1139 /* Decode the switches. */
1141 decode_env_switches ("MAKEFLAGS", 9);
1143 /* People write things like:
1144 MFLAGS="CC=gcc -pipe" "CFLAGS=-g"
1145 and we set the -p, -i and -e switches. Doesn't seem quite right. */
1146 decode_env_switches ("MFLAGS", 6);
1148 decode_switches (argc
, argv
, 0);
1151 fprintf(stderr
, "%s (pid = %d)\n", argv
[0], GetCurrentProcessId());
1152 fprintf(stderr
, _("%s is suspending for 30 seconds..."), argv
[0]);
1154 fprintf(stderr
, _("done sleep(30). Continuing.\n"));
1158 decode_debug_flags ();
1160 /* Print version information. */
1162 if (print_version_flag
|| print_data_base_flag
|| db_level
)
1165 /* `make --version' is supposed to just print the version and exit. */
1166 if (print_version_flag
)
1170 /* Set the "MAKE_COMMAND" variable to the name we were invoked with.
1171 (If it is a relative pathname with a slash, prepend our directory name
1172 so the result will run the same program regardless of the current dir.
1173 If it is a name with no slash, we can only hope that PATH did not
1174 find it in the current directory.) */
1177 * Convert from backslashes to forward slashes for
1178 * programs like sh which don't like them. Shouldn't
1179 * matter if the path is one way or the other for
1182 if (strpbrk(argv
[0], "/:\\") ||
1183 strstr(argv
[0], "..") ||
1184 strneq(argv
[0], "//", 2))
1185 argv
[0] = xstrdup(w32ify(argv
[0],1));
1186 #else /* WINDOWS32 */
1187 #if defined (__MSDOS__) || defined (__EMX__)
1188 if (strchr (argv
[0], '\\'))
1192 argv
[0] = xstrdup (argv
[0]);
1193 for (p
= argv
[0]; *p
; p
++)
1197 /* If argv[0] is not in absolute form, prepend the current
1198 directory. This can happen when Make is invoked by another DJGPP
1199 program that uses a non-absolute name. */
1200 if (current_directory
[0] != '\0'
1202 && (argv
[0][0] != '/' && (argv
[0][0] == '\0' || argv
[0][1] != ':'))
1204 /* do not prepend cwd if argv[0] contains no '/', e.g. "make" */
1205 && (strchr (argv
[0], '/') != 0 || strchr (argv
[0], '\\') != 0)
1208 argv
[0] = concat (current_directory
, "/", argv
[0]);
1209 #else /* !__MSDOS__ */
1210 if (current_directory
[0] != '\0'
1211 && argv
[0] != 0 && argv
[0][0] != '/' && strchr (argv
[0], '/') != 0)
1212 argv
[0] = concat (current_directory
, "/", argv
[0]);
1213 #endif /* !__MSDOS__ */
1214 #endif /* WINDOWS32 */
1217 /* The extra indirection through $(MAKE_COMMAND) is done
1218 for hysterical raisins. */
1219 (void) define_variable ("MAKE_COMMAND", 12, argv
[0], o_default
, 0);
1220 (void) define_variable ("MAKE", 4, "$(MAKE_COMMAND)", o_default
, 1);
1222 if (command_variables
!= 0)
1224 struct command_variable
*cv
;
1226 unsigned int len
= 0;
1229 /* Figure out how much space will be taken up by the command-line
1230 variable definitions. */
1231 for (cv
= command_variables
; cv
!= 0; cv
= cv
->next
)
1234 len
+= 2 * strlen (v
->name
);
1238 len
+= 2 * strlen (v
->value
);
1242 /* Now allocate a buffer big enough and fill it. */
1243 p
= value
= (char *) alloca (len
);
1244 for (cv
= command_variables
; cv
!= 0; cv
= cv
->next
)
1247 p
= quote_for_env (p
, v
->name
);
1251 p
= quote_for_env (p
, v
->value
);
1254 p
[-1] = '\0'; /* Kill the final space and terminate. */
1256 /* Define an unchangeable variable with a name that no POSIX.2
1257 makefile could validly use for its own variable. */
1258 (void) define_variable ("-*-command-variables-*-", 23,
1259 value
, o_automatic
, 0);
1261 /* Define the variable; this will not override any user definition.
1262 Normally a reference to this variable is written into the value of
1263 MAKEFLAGS, allowing the user to override this value to affect the
1264 exported value of MAKEFLAGS. In POSIX-pedantic mode, we cannot
1265 allow the user's setting of MAKEOVERRIDES to affect MAKEFLAGS, so
1266 a reference to this hidden variable is written instead. */
1267 (void) define_variable ("MAKEOVERRIDES", 13,
1268 "${-*-command-variables-*-}", o_env
, 1);
1271 /* If there were -C flags, move ourselves about. */
1272 if (directories
!= 0)
1273 for (i
= 0; directories
->list
[i
] != 0; ++i
)
1275 char *dir
= directories
->list
[i
];
1279 expanded
= tilde_expand (dir
);
1284 /* WINDOWS32 chdir() doesn't work if the directory has a trailing '/'
1285 But allow -C/ just in case someone wants that. */
1287 char *p
= dir
+ strlen (dir
) - 1;
1288 while (p
> dir
&& (p
[0] == '/' || p
[0] == '\\'))
1293 if (chdir (dir
) < 0)
1294 pfatal_with_name (dir
);
1301 * THIS BLOCK OF CODE MUST COME AFTER chdir() CALL ABOVE IN ORDER
1302 * TO NOT CONFUSE THE DEPENDENCY CHECKING CODE IN implicit.c.
1304 * The functions in dir.c can incorrectly cache information for "."
1305 * before we have changed directory and this can cause file
1306 * lookups to fail because the current directory (.) was pointing
1307 * at the wrong place when it was first evaluated.
1309 no_default_sh_exe
= !find_and_set_default_shell(NULL
);
1311 #endif /* WINDOWS32 */
1312 /* Figure out the level of recursion. */
1314 struct variable
*v
= lookup_variable (MAKELEVEL_NAME
, MAKELEVEL_LENGTH
);
1315 if (v
!= 0 && v
->value
[0] != '\0' && v
->value
[0] != '-')
1316 makelevel
= (unsigned int) atoi (v
->value
);
1321 /* Except under -s, always do -w in sub-makes and under -C. */
1322 if (!silent_flag
&& (directories
!= 0 || makelevel
> 0))
1323 print_directory_flag
= 1;
1325 /* Let the user disable that with --no-print-directory. */
1326 if (inhibit_print_directory_flag
)
1327 print_directory_flag
= 0;
1329 /* If -R was given, set -r too (doesn't make sense otherwise!) */
1330 if (no_builtin_variables_flag
)
1331 no_builtin_rules_flag
= 1;
1333 /* Construct the list of include directories to search. */
1335 construct_include_path (include_directories
== 0 ? (char **) 0
1336 : include_directories
->list
);
1338 /* Figure out where we are now, after chdir'ing. */
1339 if (directories
== 0)
1340 /* We didn't move, so we're still in the same place. */
1341 starting_directory
= current_directory
;
1345 if (getcwd_fs (current_directory
, GET_PATH_MAX
) == 0)
1347 if (getcwd (current_directory
, GET_PATH_MAX
) == 0)
1351 perror_with_name ("getcwd: ", "");
1353 error (NILF
, "getwd: %s", current_directory
);
1355 starting_directory
= 0;
1358 starting_directory
= current_directory
;
1361 (void) define_variable ("CURDIR", 6, current_directory
, o_default
, 0);
1363 /* Read any stdin makefiles into temporary files. */
1367 register unsigned int i
;
1368 for (i
= 0; i
< makefiles
->idx
; ++i
)
1369 if (makefiles
->list
[i
][0] == '-' && makefiles
->list
[i
][1] == '\0')
1371 /* This makefile is standard input. Since we may re-exec
1372 and thus re-read the makefiles, we read standard input
1373 into a temporary file and read from that. */
1375 char *template, *tmpdir
;
1378 fatal (NILF
, _("Makefile from standard input specified twice."));
1381 # define DEFAULT_TMPDIR "sys$scratch:"
1384 # define DEFAULT_TMPDIR P_tmpdir
1386 # define DEFAULT_TMPDIR "/tmp"
1389 #define DEFAULT_TMPFILE "GmXXXXXX"
1391 if (((tmpdir
= getenv ("TMPDIR")) == NULL
|| *tmpdir
== '\0')
1392 #if defined (__MSDOS__) || defined (WINDOWS32) || defined (__EMX__)
1393 /* These are also used commonly on these platforms. */
1394 && ((tmpdir
= getenv ("TEMP")) == NULL
|| *tmpdir
== '\0')
1395 && ((tmpdir
= getenv ("TMP")) == NULL
|| *tmpdir
== '\0')
1398 tmpdir
= DEFAULT_TMPDIR
;
1400 template = (char *) alloca (strlen (tmpdir
)
1401 + sizeof (DEFAULT_TMPFILE
) + 1);
1402 strcpy (template, tmpdir
);
1404 #ifdef HAVE_DOS_PATHS
1405 if (strchr ("/\\", template[strlen (template) - 1]) == NULL
)
1406 strcat (template, "/");
1409 if (template[strlen (template) - 1] != '/')
1410 strcat (template, "/");
1412 #endif /* !HAVE_DOS_PATHS */
1414 strcat (template, DEFAULT_TMPFILE
);
1415 outfile
= open_tmpfile (&stdin_nm
, template);
1417 pfatal_with_name (_("fopen (temporary file)"));
1418 while (!feof (stdin
))
1421 unsigned int n
= fread (buf
, 1, sizeof (buf
), stdin
);
1422 if (n
> 0 && fwrite (buf
, 1, n
, outfile
) != n
)
1423 pfatal_with_name (_("fwrite (temporary file)"));
1425 (void) fclose (outfile
);
1427 /* Replace the name that read_all_makefiles will
1428 see with the name of the temporary file. */
1429 makefiles
->list
[i
] = xstrdup (stdin_nm
);
1431 /* Make sure the temporary file will not be remade. */
1432 f
= enter_file (stdin_nm
);
1434 f
->update_status
= 0;
1435 f
->command_state
= cs_finished
;
1436 /* Can't be intermediate, or it'll be removed too early for
1438 f
->intermediate
= 0;
1443 #ifndef __EMX__ /* Don't use a SIGCHLD handler for OS/2 */
1444 #if defined(MAKE_JOBSERVER) || !defined(HAVE_WAIT_NOHANG)
1445 /* Set up to handle children dying. This must be done before
1446 reading in the makefiles so that `shell' function calls will work.
1448 If we don't have a hanging wait we have to fall back to old, broken
1449 functionality here and rely on the signal handler and counting
1452 If we're using the jobs pipe we need a signal handler so that
1453 SIGCHLD is not ignored; we need it to interrupt the read(2) of the
1454 jobserver pipe in job.c if we're waiting for a token.
1456 If none of these are true, we don't need a signal handler at all. */
1458 extern RETSIGTYPE child_handler
PARAMS ((int sig
));
1459 # if defined SIGCHLD
1460 bsd_signal (SIGCHLD
, child_handler
);
1462 # if defined SIGCLD && SIGCLD != SIGCHLD
1463 bsd_signal (SIGCLD
, child_handler
);
1469 /* Let the user send us SIGUSR1 to toggle the -d flag during the run. */
1471 bsd_signal (SIGUSR1
, debug_signal_handler
);
1474 /* Define the initial list of suffixes for old-style rules. */
1476 set_default_suffixes ();
1478 /* Define the file rules for the built-in suffix rules. These will later
1479 be converted into pattern rules. We used to do this in
1480 install_default_implicit_rules, but since that happens after reading
1481 makefiles, it results in the built-in pattern rules taking precedence
1482 over makefile-specified suffix rules, which is wrong. */
1484 install_default_suffix_rules ();
1486 /* Define some internal and special variables. */
1488 define_automatic_variables ();
1490 /* Set up the MAKEFLAGS and MFLAGS variables
1491 so makefiles can look at them. */
1493 define_makeflags (0, 0);
1495 /* Define the default variables. */
1496 define_default_variables ();
1498 /* Read all the makefiles. */
1500 default_file
= enter_file (".DEFAULT");
1503 = read_all_makefiles (makefiles
== 0 ? (char **) 0 : makefiles
->list
);
1506 /* look one last time after reading all Makefiles */
1507 if (no_default_sh_exe
)
1508 no_default_sh_exe
= !find_and_set_default_shell(NULL
);
1510 if (no_default_sh_exe
&& job_slots
!= 1) {
1511 error (NILF
, _("Do not specify -j or --jobs if sh.exe is not available."));
1512 error (NILF
, _("Resetting make for single job mode."));
1515 #endif /* WINDOWS32 */
1517 #if defined (__MSDOS__) || defined (__EMX__)
1518 /* We need to know what kind of shell we will be using. */
1520 extern int _is_unixy_shell (const char *_path
);
1521 struct variable
*shv
= lookup_variable ("SHELL", 5);
1522 extern int unixy_shell
;
1523 extern char *default_shell
;
1525 if (shv
&& *shv
->value
)
1527 char *shell_path
= recursively_expand(shv
);
1529 if (shell_path
&& _is_unixy_shell (shell_path
))
1534 default_shell
= shell_path
;
1537 #endif /* __MSDOS__ || __EMX__ */
1539 /* Decode switches again, in case the variables were set by the makefile. */
1540 decode_env_switches ("MAKEFLAGS", 9);
1542 decode_env_switches ("MFLAGS", 6);
1545 #if defined (__MSDOS__) || defined (__EMX__)
1548 && _osmode
!= OS2_MODE
/* turn off -j if we are in DOS mode */
1553 _("Parallel jobs (-j) are not supported on this platform."));
1554 error (NILF
, _("Resetting to single job (-j1) mode."));
1559 #ifdef MAKE_JOBSERVER
1560 /* If the jobserver-fds option is seen, make sure that -j is reasonable. */
1567 for (ui
=1; ui
< jobserver_fds
->idx
; ++ui
)
1568 if (!streq (jobserver_fds
->list
[0], jobserver_fds
->list
[ui
]))
1569 fatal (NILF
, _("internal error: multiple --jobserver-fds options"));
1571 /* Now parse the fds string and make sure it has the proper format. */
1573 cp
= jobserver_fds
->list
[0];
1575 if (sscanf (cp
, "%d,%d", &job_fds
[0], &job_fds
[1]) != 2)
1577 _("internal error: invalid --jobserver-fds string `%s'"), cp
);
1579 /* The combination of a pipe + !job_slots means we're using the
1580 jobserver. If !job_slots and we don't have a pipe, we can start
1581 infinite jobs. If we see both a pipe and job_slots >0 that means the
1582 user set -j explicitly. This is broken; in this case obey the user
1583 (ignore the jobserver pipe for this make) but print a message. */
1587 _("warning: -jN forced in submake: disabling jobserver mode."));
1589 /* Create a duplicate pipe, that will be closed in the SIGCHLD
1590 handler. If this fails with EBADF, the parent has closed the pipe
1591 on us because it didn't think we were a submake. If so, print a
1592 warning then default to -j1. */
1594 else if ((job_rfd
= dup (job_fds
[0])) < 0)
1597 pfatal_with_name (_("dup jobserver"));
1600 _("warning: jobserver unavailable: using -j1. Add `+' to parent make rule."));
1608 job_fds
[0] = job_fds
[1] = -1;
1609 free (jobserver_fds
->list
);
1610 free (jobserver_fds
);
1615 /* If we have >1 slot but no jobserver-fds, then we're a top-level make.
1616 Set up the pipe and install the fds option for our children. */
1622 if (pipe (job_fds
) < 0 || (job_rfd
= dup (job_fds
[0])) < 0)
1623 pfatal_with_name (_("creating jobs pipe"));
1625 /* Every make assumes that it always has one job it can run. For the
1626 submakes it's the token they were given by their parent. For the
1627 top make, we just subtract one from the number the user wants. We
1628 want job_slots to be 0 to indicate we're using the jobserver. */
1634 EINTRLOOP (r
, write (job_fds
[1], &c
, 1));
1636 pfatal_with_name (_("init jobserver pipe"));
1639 /* Fill in the jobserver_fds struct for our children. */
1641 jobserver_fds
= (struct stringlist
*)
1642 xmalloc (sizeof (struct stringlist
));
1643 jobserver_fds
->list
= (char **) xmalloc (sizeof (char *));
1644 jobserver_fds
->list
[0] = xmalloc ((sizeof ("1024")*2)+1);
1646 sprintf (jobserver_fds
->list
[0], "%d,%d", job_fds
[0], job_fds
[1]);
1647 jobserver_fds
->idx
= 1;
1648 jobserver_fds
->max
= 1;
1652 /* Set up MAKEFLAGS and MFLAGS again, so they will be right. */
1654 define_makeflags (1, 0);
1656 /* Make each `struct dep' point at the `struct file' for the file
1657 depended on. Also do magic for special targets. */
1661 /* Convert old-style suffix rules to pattern rules. It is important to
1662 do this before installing the built-in pattern rules below, so that
1663 makefile-specified suffix rules take precedence over built-in pattern
1666 convert_to_pattern ();
1668 /* Install the default implicit pattern rules.
1669 This used to be done before reading the makefiles.
1670 But in that case, built-in pattern rules were in the chain
1671 before user-defined ones, so they matched first. */
1673 install_default_implicit_rules ();
1675 /* Compute implicit rule limits. */
1677 count_implicit_rule_limits ();
1679 /* Construct the listings of directories in VPATH lists. */
1681 build_vpath_lists ();
1683 /* Mark files given with -o flags as very old
1684 and as having been updated already, and files given with -W flags as
1685 brand new (time-stamp as far as possible into the future). */
1688 for (p
= old_files
->list
; *p
!= 0; ++p
)
1690 f
= enter_command_line_file (*p
);
1691 f
->last_mtime
= f
->mtime_before_update
= OLD_MTIME
;
1693 f
->update_status
= 0;
1694 f
->command_state
= cs_finished
;
1699 for (p
= new_files
->list
; *p
!= 0; ++p
)
1701 f
= enter_command_line_file (*p
);
1702 f
->last_mtime
= f
->mtime_before_update
= NEW_MTIME
;
1706 /* Initialize the remote job module. */
1709 if (read_makefiles
!= 0)
1711 /* Update any makefiles if necessary. */
1713 FILE_TIMESTAMP
*makefile_mtimes
= 0;
1714 unsigned int mm_idx
= 0;
1715 char **nargv
= argv
;
1717 int orig_db_level
= db_level
;
1720 if (! ISDB (DB_MAKEFILES
))
1723 DB (DB_BASIC
, (_("Updating makefiles....\n")));
1725 /* Remove any makefiles we don't want to try to update.
1726 Also record the current modtimes so we can compare them later. */
1728 register struct dep
*d
, *last
;
1733 register struct file
*f
= d
->file
;
1734 if (f
->double_colon
)
1735 for (f
= f
->double_colon
; f
!= NULL
; f
= f
->prev
)
1737 if (f
->deps
== 0 && f
->cmds
!= 0)
1739 /* This makefile is a :: target with commands, but
1740 no dependencies. So, it will always be remade.
1741 This might well cause an infinite loop, so don't
1742 try to remake it. (This will only happen if
1743 your makefiles are written exceptionally
1744 stupidly; but if you work for Athena, that's how
1745 you write your makefiles.) */
1748 (_("Makefile `%s' might loop; not remaking it.\n"),
1752 read_makefiles
= d
->next
;
1754 last
->next
= d
->next
;
1756 /* Free the storage. */
1759 d
= last
== 0 ? read_makefiles
: last
->next
;
1764 if (f
== NULL
|| !f
->double_colon
)
1766 makefile_mtimes
= (FILE_TIMESTAMP
*)
1767 xrealloc ((char *) makefile_mtimes
,
1768 (mm_idx
+ 1) * sizeof (FILE_TIMESTAMP
));
1769 makefile_mtimes
[mm_idx
++] = file_mtime_no_search (d
->file
);
1776 /* Set up `MAKEFLAGS' specially while remaking makefiles. */
1777 define_makeflags (1, 1);
1779 rebuilding_makefiles
= 1;
1780 status
= update_goal_chain (read_makefiles
);
1781 rebuilding_makefiles
= 0;
1786 /* The only way this can happen is if the user specified -q and asked
1787 * for one of the makefiles to be remade as a target on the command
1788 * line. Since we're not actually updating anything with -q we can
1789 * treat this as "did nothing".
1797 /* Failed to update. Figure out if we care. */
1799 /* Nonzero if any makefile was successfully remade. */
1801 /* Nonzero if any makefile we care about failed
1802 in updating or could not be found at all. */
1807 for (i
= 0, d
= read_makefiles
; d
!= 0; ++i
, d
= d
->next
)
1809 /* Reset the considered flag; we may need to look at the file
1810 again to print an error. */
1811 d
->file
->considered
= 0;
1813 if (d
->file
->updated
)
1815 /* This makefile was updated. */
1816 if (d
->file
->update_status
== 0)
1818 /* It was successfully updated. */
1819 any_remade
|= (file_mtime_no_search (d
->file
)
1820 != makefile_mtimes
[i
]);
1822 else if (! (d
->changed
& RM_DONTCARE
))
1824 FILE_TIMESTAMP mtime
;
1825 /* The update failed and this makefile was not
1826 from the MAKEFILES variable, so we care. */
1827 error (NILF
, _("Failed to remake makefile `%s'."),
1829 mtime
= file_mtime_no_search (d
->file
);
1830 any_remade
|= (mtime
!= NONEXISTENT_MTIME
1831 && mtime
!= makefile_mtimes
[i
]);
1832 makefile_status
= MAKE_FAILURE
;
1836 /* This makefile was not found at all. */
1837 if (! (d
->changed
& RM_DONTCARE
))
1839 /* This is a makefile we care about. See how much. */
1840 if (d
->changed
& RM_INCLUDED
)
1841 /* An included makefile. We don't need
1842 to die, but we do want to complain. */
1844 _("Included makefile `%s' was not found."),
1848 /* A normal makefile. We must die later. */
1849 error (NILF
, _("Makefile `%s' was not found"),
1855 /* Reset this to empty so we get the right error message below. */
1867 /* Updated successfully. Re-exec ourselves. */
1869 remove_intermediates (0);
1871 if (print_data_base_flag
)
1874 log_working_directory (0);
1878 /* These names might have changed. */
1880 for (i
= 1; i
< argc
; ++i
)
1881 if (strneq (argv
[i
], "-f", 2)) /* XXX */
1883 char *p
= &argv
[i
][2];
1885 argv
[++i
] = makefiles
->list
[j
];
1887 argv
[i
] = concat ("-f", makefiles
->list
[j
], "");
1892 /* Add -o option for the stdin temporary file, if necessary. */
1895 nargv
= (char **) xmalloc ((nargc
+ 2) * sizeof (char *));
1896 bcopy ((char *) argv
, (char *) nargv
, argc
* sizeof (char *));
1897 nargv
[nargc
++] = concat ("-o", stdin_nm
, "");
1901 if (directories
!= 0 && directories
->idx
> 0)
1904 if (directory_before_chdir
!= 0)
1906 if (chdir (directory_before_chdir
) < 0)
1908 perror_with_name ("chdir", "");
1917 fatal (NILF
, _("Couldn't change back to original directory."));
1921 for (p
= environ
; *p
!= 0; ++p
)
1922 if ((*p
)[MAKELEVEL_LENGTH
] == '='
1923 && strneq (*p
, MAKELEVEL_NAME
, MAKELEVEL_LENGTH
))
1925 /* The SGI compiler apparently can't understand
1926 the concept of storing the result of a function
1927 in something other than a local variable. */
1929 sgi_loses
= (char *) alloca (40);
1931 sprintf (*p
, "%s=%u", MAKELEVEL_NAME
, makelevel
);
1939 len
= GetVar (MAKELEVEL_NAME
, buffer
, sizeof (buffer
), GVF_GLOBAL_ONLY
);
1943 sprintf (buffer
, "%u", makelevel
);
1944 SetVar (MAKELEVEL_NAME
, buffer
, -1, GVF_GLOBAL_ONLY
);
1949 if (ISDB (DB_BASIC
))
1952 fputs (_("Re-executing:"), stdout
);
1953 for (p
= nargv
; *p
!= 0; ++p
)
1961 /* Close the dup'd jobserver pipe if we opened one. */
1966 exec_command (nargv
);
1968 #elif defined (__EMX__)
1970 /* It is not possible to use execve() here because this
1971 would cause the parent process to be terminated with
1972 exit code 0 before the child process has been terminated.
1973 Therefore it may be the best solution simply to spawn the
1974 child process including all file handles and to wait for its
1978 pid
= child_execute_job (0, 1, nargv
, environ
);
1980 /* is this loop really necessary? */
1982 pid
= wait (&status
);
1984 /* use the exit code of the child process */
1985 exit (WIFEXITED(status
) ? WEXITSTATUS(status
) : EXIT_FAILURE
);
1988 exec_command (nargv
, environ
);
1993 #define BOGUS_UPDATE_STATUS 0
1994 assert (BOGUS_UPDATE_STATUS
);
1998 db_level
= orig_db_level
;
2000 /* Free the makefile mtimes (if we allocated any). */
2001 if (makefile_mtimes
)
2002 free ((char *) makefile_mtimes
);
2005 /* Set up `MAKEFLAGS' again for the normal targets. */
2006 define_makeflags (1, 0);
2008 /* If there is a temp file from reading a makefile from stdin, get rid of
2010 if (stdin_nm
&& unlink (stdin_nm
) < 0 && errno
!= ENOENT
)
2011 perror_with_name (_("unlink (temporary file): "), stdin_nm
);
2016 /* If there were no command-line goals, use the default. */
2019 if (default_goal_file
!= 0)
2021 goals
= (struct dep
*) xmalloc (sizeof (struct dep
));
2024 goals
->ignore_mtime
= 0;
2025 goals
->file
= default_goal_file
;
2033 if (read_makefiles
== 0)
2034 fatal (NILF
, _("No targets specified and no makefile found"));
2036 fatal (NILF
, _("No targets"));
2039 /* Update the goals. */
2041 DB (DB_BASIC
, (_("Updating goal targets....\n")));
2043 switch (update_goal_chain (goals
))
2046 /* Nothing happened. */
2048 /* Updated successfully. */
2049 status
= makefile_status
;
2052 /* We are under -q and would run some commands. */
2053 status
= MAKE_TROUBLE
;
2056 /* Updating failed. POSIX.2 specifies exit status >1 for this;
2057 but in VMS, there is only success and failure. */
2058 status
= MAKE_FAILURE
;
2064 /* If we detected some clock skew, generate one last warning */
2065 if (clock_skew_detected
)
2067 _("warning: Clock skew detected. Your build may be incomplete."));
2076 /* Parsing of arguments, decoding of switches. */
2078 static char options
[1 + sizeof (switches
) / sizeof (switches
[0]) * 3];
2079 static struct option long_options
[(sizeof (switches
) / sizeof (switches
[0])) +
2080 (sizeof (long_option_aliases
) /
2081 sizeof (long_option_aliases
[0]))];
2083 /* Fill in the string and vector for getopt. */
2085 init_switches (void)
2091 if (options
[0] != '\0')
2097 /* Return switch and non-switch args in order, regardless of
2098 POSIXLY_CORRECT. Non-switch args are returned as option 1. */
2101 for (i
= 0; switches
[i
].c
!= '\0'; ++i
)
2103 long_options
[i
].name
= (switches
[i
].long_name
== 0 ? "" :
2104 switches
[i
].long_name
);
2105 long_options
[i
].flag
= 0;
2106 long_options
[i
].val
= switches
[i
].c
;
2107 if (short_option (switches
[i
].c
))
2108 *p
++ = switches
[i
].c
;
2109 switch (switches
[i
].type
)
2114 long_options
[i
].has_arg
= no_argument
;
2120 if (short_option (switches
[i
].c
))
2122 if (switches
[i
].noarg_value
!= 0)
2124 if (short_option (switches
[i
].c
))
2126 long_options
[i
].has_arg
= optional_argument
;
2129 long_options
[i
].has_arg
= required_argument
;
2134 for (c
= 0; c
< (sizeof (long_option_aliases
) /
2135 sizeof (long_option_aliases
[0]));
2137 long_options
[i
++] = long_option_aliases
[c
];
2138 long_options
[i
].name
= 0;
2142 handle_non_switch_argument (char *arg
, int env
)
2144 /* Non-option argument. It might be a variable definition. */
2146 if (arg
[0] == '-' && arg
[1] == '\0')
2147 /* Ignore plain `-' for compatibility. */
2149 v
= try_variable_definition (0, arg
, o_command
, 0);
2152 /* It is indeed a variable definition. Record a pointer to
2153 the variable for later use in define_makeflags. */
2154 struct command_variable
*cv
2155 = (struct command_variable
*) xmalloc (sizeof (*cv
));
2157 cv
->next
= command_variables
;
2158 command_variables
= cv
;
2162 /* Not an option or variable definition; it must be a goal
2163 target! Enter it as a file and add it to the dep chain of
2165 struct file
*f
= enter_command_line_file (arg
);
2170 goals
= (struct dep
*) xmalloc (sizeof (struct dep
));
2175 lastgoal
->next
= (struct dep
*) xmalloc (sizeof (struct dep
));
2176 lastgoal
= lastgoal
->next
;
2180 lastgoal
->ignore_mtime
= 0;
2183 /* Add this target name to the MAKECMDGOALS variable. */
2187 v
= lookup_variable ("MAKECMDGOALS", 12);
2192 /* Paste the old and new values together */
2193 unsigned int oldlen
, newlen
;
2195 oldlen
= strlen (v
->value
);
2196 newlen
= strlen (f
->name
);
2197 value
= (char *) alloca (oldlen
+ 1 + newlen
+ 1);
2198 bcopy (v
->value
, value
, oldlen
);
2199 value
[oldlen
] = ' ';
2200 bcopy (f
->name
, &value
[oldlen
+ 1], newlen
+ 1);
2202 define_variable ("MAKECMDGOALS", 12, value
, o_default
, 0);
2207 /* Print a nice usage method. */
2210 print_usage (int bad
)
2212 const char *const *cpp
;
2215 if (print_version_flag
)
2218 usageto
= bad
? stderr
: stdout
;
2220 fprintf (usageto
, _("Usage: %s [options] [target] ...\n"), program
);
2222 for (cpp
= usage
; *cpp
; ++cpp
)
2223 fputs (_(*cpp
), usageto
);
2225 if (!remote_description
|| *remote_description
== '\0')
2226 fprintf (usageto
, _("\nThis program built for %s\n"), make_host
);
2228 fprintf (usageto
, _("\nThis program built for %s (%s)\n"),
2229 make_host
, remote_description
);
2231 fprintf (usageto
, _("Report bugs to <bug-make@gnu.org>\n"));
2234 /* Decode switches from ARGC and ARGV.
2235 They came from the environment if ENV is nonzero. */
2238 decode_switches (int argc
, char **argv
, int env
)
2241 register const struct command_switch
*cs
;
2242 register struct stringlist
*sl
;
2245 /* getopt does most of the parsing for us.
2246 First, get its vectors set up. */
2250 /* Let getopt produce error messages for the command line,
2251 but not for options from the environment. */
2253 /* Reset getopt's state. */
2256 while (optind
< argc
)
2258 /* Parse the next argument. */
2259 c
= getopt_long (argc
, argv
, options
, long_options
, (int *) 0);
2261 /* End of arguments, or "--" marker seen. */
2264 /* An argument not starting with a dash. */
2265 handle_non_switch_argument (optarg
, env
);
2267 /* Bad option. We will print a usage message and die later.
2268 But continue to parse the other options so the user can
2269 see all he did wrong. */
2272 for (cs
= switches
; cs
->c
!= '\0'; ++cs
)
2275 /* Whether or not we will actually do anything with
2276 this switch. We test this individually inside the
2277 switch below rather than just once outside it, so that
2278 options which are to be ignored still consume args. */
2279 int doit
= !env
|| cs
->env
;
2292 *(int *) cs
->value_ptr
= cs
->type
== flag
;
2300 optarg
= cs
->noarg_value
;
2301 else if (*optarg
== '\0')
2303 error (NILF
, _("the `-%c' option requires a non-empty string argument"),
2308 sl
= *(struct stringlist
**) cs
->value_ptr
;
2311 sl
= (struct stringlist
*)
2312 xmalloc (sizeof (struct stringlist
));
2315 sl
->list
= (char **) xmalloc (5 * sizeof (char *));
2316 *(struct stringlist
**) cs
->value_ptr
= sl
;
2318 else if (sl
->idx
== sl
->max
- 1)
2321 sl
->list
= (char **)
2322 xrealloc ((char *) sl
->list
,
2323 sl
->max
* sizeof (char *));
2325 sl
->list
[sl
->idx
++] = optarg
;
2326 sl
->list
[sl
->idx
] = 0;
2330 /* See if we have an option argument; if we do require that
2331 it's all digits, not something like "10foo". */
2332 if (optarg
== 0 && argc
> optind
)
2335 for (cp
=argv
[optind
]; ISDIGIT (cp
[0]); ++cp
)
2338 optarg
= argv
[optind
++];
2346 int i
= atoi (optarg
);
2349 /* Yes, I realize we're repeating this in some cases. */
2350 for (cp
= optarg
; ISDIGIT (cp
[0]); ++cp
)
2353 if (i
< 1 || cp
[0] != '\0')
2355 error (NILF
, _("the `-%c' option requires a positive integral argument"),
2360 *(unsigned int *) cs
->value_ptr
= i
;
2363 *(unsigned int *) cs
->value_ptr
2364 = *(unsigned int *) cs
->noarg_value
;
2369 if (optarg
== 0 && optind
< argc
2370 && (ISDIGIT (argv
[optind
][0]) || argv
[optind
][0] == '.'))
2371 optarg
= argv
[optind
++];
2374 *(double *) cs
->value_ptr
2375 = (optarg
!= 0 ? atof (optarg
)
2376 : *(double *) cs
->noarg_value
);
2382 /* We've found the switch. Stop looking. */
2387 /* There are no more options according to getting getopt, but there may
2388 be some arguments left. Since we have asked for non-option arguments
2389 to be returned in order, this only happens when there is a "--"
2390 argument to prevent later arguments from being options. */
2391 while (optind
< argc
)
2392 handle_non_switch_argument (argv
[optind
++], env
);
2395 if (!env
&& (bad
|| print_usage_flag
))
2402 /* Decode switches from environment variable ENVAR (which is LEN chars long).
2403 We do this by chopping the value into a vector of words, prepending a
2404 dash to the first word if it lacks one, and passing the vector to
2408 decode_env_switches (char *envar
, unsigned int len
)
2410 char *varref
= (char *) alloca (2 + len
+ 2);
2415 /* Get the variable's value. */
2418 bcopy (envar
, &varref
[2], len
);
2419 varref
[2 + len
] = ')';
2420 varref
[2 + len
+ 1] = '\0';
2421 value
= variable_expand (varref
);
2423 /* Skip whitespace, and check for an empty value. */
2424 value
= next_token (value
);
2425 len
= strlen (value
);
2429 /* Allocate a vector that is definitely big enough. */
2430 argv
= (char **) alloca ((1 + len
+ 1) * sizeof (char *));
2432 /* Allocate a buffer to copy the value into while we split it into words
2433 and unquote it. We must use permanent storage for this because
2434 decode_switches may store pointers into the passed argument words. */
2435 p
= (char *) xmalloc (2 * len
);
2437 /* getopt will look at the arguments starting at ARGV[1].
2438 Prepend a spacer word. */
2442 while (*value
!= '\0')
2444 if (*value
== '\\' && value
[1] != '\0')
2445 ++value
; /* Skip the backslash. */
2446 else if (isblank ((unsigned char)*value
))
2448 /* End of the word. */
2453 while (isblank ((unsigned char)*value
));
2461 if (argv
[1][0] != '-' && strchr (argv
[1], '=') == 0)
2462 /* The first word doesn't start with a dash and isn't a variable
2463 definition. Add a dash and pass it along to decode_switches. We
2464 need permanent storage for this in case decode_switches saves
2465 pointers into the value. */
2466 argv
[1] = concat ("-", argv
[1], "");
2468 /* Parse those words. */
2469 decode_switches (argc
, argv
, 1);
2472 /* Quote the string IN so that it will be interpreted as a single word with
2473 no magic by decode_env_switches; also double dollar signs to avoid
2474 variable expansion in make itself. Write the result into OUT, returning
2475 the address of the next character to be written.
2476 Allocating space for OUT twice the length of IN is always sufficient. */
2479 quote_for_env (char *out
, char *in
)
2485 else if (isblank ((unsigned char)*in
) || *in
== '\\')
2493 /* Define the MAKEFLAGS and MFLAGS variables to reflect the settings of the
2494 command switches. Include options with args if ALL is nonzero.
2495 Don't include options with the `no_makefile' flag set if MAKEFILE. */
2498 define_makeflags (int all
, int makefile
)
2500 static const char ref
[] = "$(MAKEOVERRIDES)";
2501 static const char posixref
[] = "$(-*-command-variables-*-)";
2502 register const struct command_switch
*cs
;
2508 /* We will construct a linked list of `struct flag's describing
2509 all the flags which need to go in MAKEFLAGS. Then, once we
2510 know how many there are and their lengths, we can put them all
2511 together in a string. */
2516 const struct command_switch
*cs
;
2519 struct flag
*flags
= 0;
2520 unsigned int flagslen
= 0;
2521 #define ADD_FLAG(ARG, LEN) \
2523 struct flag *new = (struct flag *) alloca (sizeof (struct flag)); \
2526 new->next = flags; \
2528 if (new->arg == 0) \
2529 ++flagslen; /* Just a single flag letter. */ \
2531 flagslen += 1 + 1 + 1 + 1 + 3 * (LEN); /* " -x foo" */ \
2532 if (!short_option (cs->c)) \
2533 /* This switch has no single-letter version, so we use the long. */ \
2534 flagslen += 2 + strlen (cs->long_name); \
2537 for (cs
= switches
; cs
->c
!= '\0'; ++cs
)
2538 if (cs
->toenv
&& (!makefile
|| !cs
->no_makefile
))
2549 if (!*(int *) cs
->value_ptr
== (cs
->type
== flag_off
)
2550 && (cs
->default_value
== 0
2551 || *(int *) cs
->value_ptr
!= *(int *) cs
->default_value
))
2558 if ((cs
->default_value
!= 0
2559 && (*(unsigned int *) cs
->value_ptr
2560 == *(unsigned int *) cs
->default_value
)))
2562 else if (cs
->noarg_value
!= 0
2563 && (*(unsigned int *) cs
->value_ptr
==
2564 *(unsigned int *) cs
->noarg_value
))
2565 ADD_FLAG ("", 0); /* Optional value omitted; see below. */
2566 else if (cs
->c
== 'j')
2567 /* Special case for `-j'. */
2571 char *buf
= (char *) alloca (30);
2572 sprintf (buf
, "%u", *(unsigned int *) cs
->value_ptr
);
2573 ADD_FLAG (buf
, strlen (buf
));
2582 if (cs
->default_value
!= 0
2583 && (*(double *) cs
->value_ptr
2584 == *(double *) cs
->default_value
))
2586 else if (cs
->noarg_value
!= 0
2587 && (*(double *) cs
->value_ptr
2588 == *(double *) cs
->noarg_value
))
2589 ADD_FLAG ("", 0); /* Optional value omitted; see below. */
2592 char *buf
= (char *) alloca (100);
2593 sprintf (buf
, "%g", *(double *) cs
->value_ptr
);
2594 ADD_FLAG (buf
, strlen (buf
));
2603 struct stringlist
*sl
= *(struct stringlist
**) cs
->value_ptr
;
2606 /* Add the elements in reverse order, because
2607 all the flags get reversed below; and the order
2608 matters for some switches (like -I). */
2609 register unsigned int i
= sl
->idx
;
2611 ADD_FLAG (sl
->list
[i
], strlen (sl
->list
[i
]));
2617 flagslen
+= 4 + sizeof posixref
; /* Four more for the possible " -- ". */
2621 /* Construct the value in FLAGSTRING.
2622 We allocate enough space for a preceding dash and trailing null. */
2623 flagstring
= (char *) alloca (1 + flagslen
+ 1);
2624 bzero (flagstring
, 1 + flagslen
+ 1);
2630 /* Add the flag letter or name to the string. */
2631 if (short_option (flags
->cs
->c
))
2632 *p
++ = flags
->cs
->c
;
2641 strcpy (p
, flags
->cs
->long_name
);
2644 if (flags
->arg
!= 0)
2646 /* A flag that takes an optional argument which in this case is
2647 omitted is specified by ARG being "". We must distinguish
2648 because a following flag appended without an intervening " -"
2649 is considered the arg for the first. */
2650 if (flags
->arg
[0] != '\0')
2652 /* Add its argument too. */
2653 *p
++ = !short_option (flags
->cs
->c
) ? '=' : ' ';
2654 p
= quote_for_env (p
, flags
->arg
);
2657 /* Write a following space and dash, for the next flag. */
2661 else if (!short_option (flags
->cs
->c
))
2664 /* Long options must each go in their own word,
2665 so we write the following space and dash. */
2669 flags
= flags
->next
;
2672 /* Define MFLAGS before appending variable definitions. */
2674 if (p
== &flagstring
[1])
2676 flagstring
[0] = '\0';
2677 else if (p
[-1] == '-')
2679 /* Kill the final space and dash. */
2684 /* Terminate the string. */
2687 /* Since MFLAGS is not parsed for flags, there is no reason to
2688 override any makefile redefinition. */
2689 (void) define_variable ("MFLAGS", 6, flagstring
, o_env
, 1);
2691 if (all
&& command_variables
!= 0)
2693 /* Now write a reference to $(MAKEOVERRIDES), which contains all the
2694 command-line variable definitions. */
2696 if (p
== &flagstring
[1])
2697 /* No flags written, so elide the leading dash already written. */
2701 /* Separate the variables from the switches with a "--" arg. */
2704 /* We did not already write a trailing " -". */
2708 /* There is a trailing " -"; fill it out to " -- ". */
2713 /* Copy in the string. */
2716 bcopy (posixref
, p
, sizeof posixref
- 1);
2717 p
+= sizeof posixref
- 1;
2721 bcopy (ref
, p
, sizeof ref
- 1);
2722 p
+= sizeof ref
- 1;
2725 else if (p
== &flagstring
[1])
2730 else if (p
[-1] == '-')
2731 /* Kill the final space and dash. */
2733 /* Terminate the string. */
2736 v
= define_variable ("MAKEFLAGS", 9,
2737 /* If there are switches, omit the leading dash
2738 unless it is a single long option with two
2740 &flagstring
[(flagstring
[0] == '-'
2741 && flagstring
[1] != '-')
2743 /* This used to use o_env, but that lost when a
2744 makefile defined MAKEFLAGS. Makefiles set
2745 MAKEFLAGS to add switches, but we still want
2746 to redefine its value with the full set of
2747 switches. Of course, an override or command
2748 definition will still take precedence. */
2751 /* The first time we are called, set MAKEFLAGS to always be exported.
2752 We should not do this again on the second call, because that is
2753 after reading makefiles which might have done `unexport MAKEFLAGS'. */
2754 v
->export
= v_export
;
2757 /* Print version information. */
2760 print_version (void)
2762 static int printed_version
= 0;
2764 char *precede
= print_data_base_flag
? "# " : "";
2766 if (printed_version
)
2767 /* Do it only once. */
2770 /* Print this untranslated. The coding standards recommend translating the
2771 (C) to the copyright symbol, but this string is going to change every
2772 year, and none of the rest of it should be translated (including the
2773 word "Copyright", so it hardly seems worth it. */
2775 printf ("%sGNU Make %s\n\
2776 %sCopyright (C) 2003 Free Software Foundation, Inc.\n",
2777 precede
, version_string
, precede
);
2779 printf (_("%sThis is free software; see the source for copying conditions.\n\
2780 %sThere is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A\n\
2781 %sPARTICULAR PURPOSE.\n"),
2782 precede
, precede
, precede
);
2784 if (!remote_description
|| *remote_description
== '\0')
2785 printf (_("\n%sThis program built for %s\n"), precede
, make_host
);
2787 printf (_("\n%sThis program built for %s (%s)\n"),
2788 precede
, make_host
, remote_description
);
2790 printed_version
= 1;
2792 /* Flush stdout so the user doesn't have to wait to see the
2793 version information while things are thought about. */
2797 /* Print a bunch of information about this and that. */
2800 print_data_base (void)
2804 when
= time ((time_t *) 0);
2805 printf (_("\n# Make data base, printed on %s"), ctime (&when
));
2807 print_variable_data_base ();
2808 print_dir_data_base ();
2809 print_rule_data_base ();
2810 print_file_data_base ();
2811 print_vpath_data_base ();
2813 when
= time ((time_t *) 0);
2814 printf (_("\n# Finished Make data base on %s\n"), ctime (&when
));
2817 /* Exit with STATUS, cleaning up as necessary. */
2822 static char dying
= 0;
2830 if (print_version_flag
)
2833 /* Wait for children to die. */
2834 for (err
= (status
!= 0); job_slots_used
> 0; err
= 0)
2835 reap_children (1, err
);
2837 /* Let the remote job module clean up its state. */
2840 /* Remove the intermediate files. */
2841 remove_intermediates (0);
2843 if (print_data_base_flag
)
2846 /* Try to move back to the original directory. This is essential on
2847 MS-DOS (where there is really only one process), and on Unix it
2848 puts core files in the original directory instead of the -C
2849 directory. Must wait until after remove_intermediates(), or unlinks
2850 of relative pathnames fail. */
2851 if (directory_before_chdir
!= 0)
2852 chdir (directory_before_chdir
);
2854 log_working_directory (0);
2860 /* Write a message indicating that we've just entered or
2861 left (according to ENTERING) the current directory. */
2864 log_working_directory (int entering
)
2866 static int entered
= 0;
2868 /* Print nothing without the flag. Don't print the entering message
2869 again if we already have. Don't print the leaving message if we
2870 haven't printed the entering message. */
2871 if (! print_directory_flag
|| entering
== entered
)
2876 if (print_data_base_flag
)
2877 fputs ("# ", stdout
);
2879 /* Use entire sentences to give the translators a fighting chance. */
2882 if (starting_directory
== 0)
2884 printf (_("%s: Entering an unknown directory\n"), program
);
2886 printf (_("%s: Leaving an unknown directory\n"), program
);
2889 printf (_("%s: Entering directory `%s'\n"),
2890 program
, starting_directory
);
2892 printf (_("%s: Leaving directory `%s'\n"),
2893 program
, starting_directory
);
2895 if (starting_directory
== 0)
2897 printf (_("%s[%u]: Entering an unknown directory\n"),
2898 program
, makelevel
);
2900 printf (_("%s[%u]: Leaving an unknown directory\n"),
2901 program
, makelevel
);
2904 printf (_("%s[%u]: Entering directory `%s'\n"),
2905 program
, makelevel
, starting_directory
);
2907 printf (_("%s[%u]: Leaving directory `%s'\n"),
2908 program
, makelevel
, starting_directory
);