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>
49 #if defined(HAVE_SYS_RESOURCE_H) && defined(HAVE_GETRLIMIT) && defined(HAVE_SETRLIMIT)
50 # define SET_STACK_SIZE
54 # include <sys/resource.h>
58 int __stack
= 20000; /* Make sure we have 20K of stack space */
61 extern void init_dir
PARAMS ((void));
62 extern void remote_setup
PARAMS ((void));
63 extern void remote_cleanup
PARAMS ((void));
64 extern RETSIGTYPE fatal_error_signal
PARAMS ((int sig
));
66 extern void print_variable_data_base
PARAMS ((void));
67 extern void print_dir_data_base
PARAMS ((void));
68 extern void print_rule_data_base
PARAMS ((void));
69 extern void print_file_data_base
PARAMS ((void));
70 extern void print_vpath_data_base
PARAMS ((void));
72 #if defined HAVE_WAITPID || defined HAVE_WAIT3
73 # define HAVE_WAIT_NOHANG
80 # ifndef sun /* Sun has an incorrect decl in a header. */
81 extern void exit
PARAMS ((int)) __attribute__ ((noreturn
));
83 extern double atof ();
86 static void print_data_base
PARAMS ((void));
87 static void print_version
PARAMS ((void));
88 static void decode_switches
PARAMS ((int argc
, char **argv
, int env
));
89 static void decode_env_switches
PARAMS ((char *envar
, unsigned int len
));
90 static void define_makeflags
PARAMS ((int all
, int makefile
));
91 static char *quote_for_env
PARAMS ((char *out
, char *in
));
92 static void initialize_global_hash_tables
PARAMS ((void));
95 /* The structure that describes an accepted command switch. */
99 int c
; /* The switch character. */
101 enum /* Type of the value. */
103 flag
, /* Turn int flag on. */
104 flag_off
, /* Turn int flag off. */
105 string
, /* One string per switch. */
106 positive_int
, /* A positive integer. */
107 floating
, /* A floating-point number (double). */
108 ignore
/* Ignored. */
111 char *value_ptr
; /* Pointer to the value-holding variable. */
113 unsigned int env
:1; /* Can come from MAKEFLAGS. */
114 unsigned int toenv
:1; /* Should be put in MAKEFLAGS. */
115 unsigned int no_makefile
:1; /* Don't propagate when remaking makefiles. */
117 char *noarg_value
; /* Pointer to value used if no argument is given. */
118 char *default_value
;/* Pointer to default value. */
120 char *long_name
; /* Long option name. */
123 /* True if C is a switch value that corresponds to a short option. */
125 #define short_option(c) ((c) <= CHAR_MAX)
127 /* The structure used to hold the list of strings given
128 in command switches of a type that takes string arguments. */
132 char **list
; /* Nil-terminated list of strings. */
133 unsigned int idx
; /* Index into above. */
134 unsigned int max
; /* Number of pointers allocated. */
138 /* The recognized command switches. */
140 /* Nonzero means do not print commands to be executed (-s). */
144 /* Nonzero means just touch the files
145 that would appear to need remaking (-t) */
149 /* Nonzero means just print what commands would need to be executed,
150 don't actually execute them (-n). */
154 /* Print debugging info (--debug). */
156 static struct stringlist
*db_flags
;
157 static int debug_flag
= 0;
162 /* Suspend make in main for a short time to allow debugger to attach */
164 int suspend_flag
= 0;
167 /* Environment variables override makefile definitions. */
169 int env_overrides
= 0;
171 /* Nonzero means ignore status codes returned by commands
172 executed to remake files. Just treat them all as successful (-i). */
174 int ignore_errors_flag
= 0;
176 /* Nonzero means don't remake anything, just print the data base
177 that results from reading the makefile (-p). */
179 int print_data_base_flag
= 0;
181 /* Nonzero means don't remake anything; just return a nonzero status
182 if the specified targets are not up to date (-q). */
184 int question_flag
= 0;
186 /* Nonzero means do not use any of the builtin rules (-r) / variables (-R). */
188 int no_builtin_rules_flag
= 0;
189 int no_builtin_variables_flag
= 0;
191 /* Nonzero means keep going even if remaking some file fails (-k). */
194 int default_keep_going_flag
= 0;
196 /* Nonzero means print directory before starting and when done (-w). */
198 int print_directory_flag
= 0;
200 /* Nonzero means ignore print_directory_flag and never print the directory.
201 This is necessary because print_directory_flag is set implicitly. */
203 int inhibit_print_directory_flag
= 0;
205 /* Nonzero means print version information. */
207 int print_version_flag
= 0;
209 /* List of makefiles given with -f switches. */
211 static struct stringlist
*makefiles
= 0;
213 /* Number of job slots (commands that can be run at once). */
215 unsigned int job_slots
= 1;
216 unsigned int default_job_slots
= 1;
218 /* Value of job_slots that means no limit. */
220 static unsigned int inf_jobs
= 0;
222 /* File descriptors for the jobs pipe. */
224 static struct stringlist
*jobserver_fds
= 0;
226 int job_fds
[2] = { -1, -1 };
229 /* Maximum load average at which multiple jobs will be run.
230 Negative values mean unlimited, while zero means limit to
231 zero load (which could be useful to start infinite jobs remotely
232 but one at a time locally). */
234 double max_load_average
= -1.0;
235 double default_load_average
= -1.0;
237 int max_load_average
= -1;
238 int default_load_average
= -1;
241 /* List of directories given with -C switches. */
243 static struct stringlist
*directories
= 0;
245 /* List of include directories given with -I switches. */
247 static struct stringlist
*include_directories
= 0;
249 /* List of files given with -o switches. */
251 static struct stringlist
*old_files
= 0;
253 /* List of files given with -W switches. */
255 static struct stringlist
*new_files
= 0;
257 /* If nonzero, we should just print usage and exit. */
259 static int print_usage_flag
= 0;
261 /* If nonzero, we should print a warning message
262 for each reference to an undefined variable. */
264 int warn_undefined_variables_flag
;
266 /* If nonzero, always build all targets, regardless of whether
267 they appear out of date or not. */
269 int always_make_flag
= 0;
271 /* If nonzero, we're in the "try to rebuild makefiles" phase. */
273 int rebuilding_makefiles
= 0;
275 /* Remember the original value of the SHELL variable, from the environment. */
277 struct variable shell_var
;
280 /* The usage output. We write it this way to make life easier for the
281 translators, especially those trying to translate to right-to-left
282 languages like Hebrew. */
284 static const char *const usage
[] =
288 -b, -m Ignored for compatibility.\n"),
290 -B, --always-make Unconditionally make all targets.\n"),
292 -C DIRECTORY, --directory=DIRECTORY\n\
293 Change to DIRECTORY before doing anything.\n"),
295 -d Print lots of debugging information.\n"),
297 --debug[=FLAGS] Print various types of debugging information.\n"),
299 -e, --environment-overrides\n\
300 Environment variables override makefiles.\n"),
302 -f FILE, --file=FILE, --makefile=FILE\n\
303 Read FILE as a makefile.\n"),
305 -h, --help Print this message and exit.\n"),
307 -i, --ignore-errors Ignore errors from commands.\n"),
309 -I DIRECTORY, --include-dir=DIRECTORY\n\
310 Search DIRECTORY for included makefiles.\n"),
312 -j [N], --jobs[=N] Allow N jobs at once; infinite jobs with no arg.\n"),
314 -k, --keep-going Keep going when some targets can't be made.\n"),
316 -l [N], --load-average[=N], --max-load[=N]\n\
317 Don't start multiple jobs unless load is below N.\n"),
319 -n, --just-print, --dry-run, --recon\n\
320 Don't actually run any commands; just print them.\n"),
322 -o FILE, --old-file=FILE, --assume-old=FILE\n\
323 Consider FILE to be very old and don't remake it.\n"),
325 -p, --print-data-base Print make's internal database.\n"),
327 -q, --question Run no commands; exit status says if up to date.\n"),
329 -r, --no-builtin-rules Disable the built-in implicit rules.\n"),
331 -R, --no-builtin-variables Disable the built-in variable settings.\n"),
333 -s, --silent, --quiet Don't echo commands.\n"),
335 -S, --no-keep-going, --stop\n\
338 -t, --touch Touch targets instead of remaking them.\n"),
340 -v, --version Print the version number of make and exit.\n"),
342 -w, --print-directory Print the current directory.\n"),
344 --no-print-directory Turn off -w, even if it was turned on implicitly.\n"),
346 -W FILE, --what-if=FILE, --new-file=FILE, --assume-new=FILE\n\
347 Consider FILE to be infinitely new.\n"),
349 --warn-undefined-variables Warn when an undefined variable is referenced.\n"),
353 /* The table of command switches. */
355 static const struct command_switch switches
[] =
357 { 'b', ignore
, 0, 0, 0, 0, 0, 0, 0 },
358 { 'B', flag
, (char *) &always_make_flag
, 1, 1, 0, 0, 0, "always-make" },
359 { 'C', string
, (char *) &directories
, 0, 0, 0, 0, 0, "directory" },
360 { 'd', flag
, (char *) &debug_flag
, 1, 1, 0, 0, 0, 0 },
361 { CHAR_MAX
+1, string
, (char *) &db_flags
, 1, 1, 0, "basic", 0, "debug" },
363 { 'D', flag
, (char *) &suspend_flag
, 1, 1, 0, 0, 0, "suspend-for-debug" },
365 { 'e', flag
, (char *) &env_overrides
, 1, 1, 0, 0, 0,
366 "environment-overrides", },
367 { 'f', string
, (char *) &makefiles
, 0, 0, 0, 0, 0, "file" },
368 { 'h', flag
, (char *) &print_usage_flag
, 0, 0, 0, 0, 0, "help" },
369 { 'i', flag
, (char *) &ignore_errors_flag
, 1, 1, 0, 0, 0,
371 { 'I', string
, (char *) &include_directories
, 1, 1, 0, 0, 0,
373 { 'j', positive_int
, (char *) &job_slots
, 1, 1, 0, (char *) &inf_jobs
,
374 (char *) &default_job_slots
, "jobs" },
375 { CHAR_MAX
+2, string
, (char *) &jobserver_fds
, 1, 1, 0, 0, 0,
377 { 'k', flag
, (char *) &keep_going_flag
, 1, 1, 0, 0,
378 (char *) &default_keep_going_flag
, "keep-going" },
380 { 'l', floating
, (char *) &max_load_average
, 1, 1, 0,
381 (char *) &default_load_average
, (char *) &default_load_average
,
384 { 'l', positive_int
, (char *) &max_load_average
, 1, 1, 0,
385 (char *) &default_load_average
, (char *) &default_load_average
,
388 { 'm', ignore
, 0, 0, 0, 0, 0, 0, 0 },
389 { 'n', flag
, (char *) &just_print_flag
, 1, 1, 1, 0, 0, "just-print" },
390 { 'o', string
, (char *) &old_files
, 0, 0, 0, 0, 0, "old-file" },
391 { 'p', flag
, (char *) &print_data_base_flag
, 1, 1, 0, 0, 0,
393 { 'q', flag
, (char *) &question_flag
, 1, 1, 1, 0, 0, "question" },
394 { 'r', flag
, (char *) &no_builtin_rules_flag
, 1, 1, 0, 0, 0,
395 "no-builtin-rules" },
396 { 'R', flag
, (char *) &no_builtin_variables_flag
, 1, 1, 0, 0, 0,
397 "no-builtin-variables" },
398 { 's', flag
, (char *) &silent_flag
, 1, 1, 0, 0, 0, "silent" },
399 { 'S', flag_off
, (char *) &keep_going_flag
, 1, 1, 0, 0,
400 (char *) &default_keep_going_flag
, "no-keep-going" },
401 { 't', flag
, (char *) &touch_flag
, 1, 1, 1, 0, 0, "touch" },
402 { 'v', flag
, (char *) &print_version_flag
, 1, 1, 0, 0, 0, "version" },
403 { 'w', flag
, (char *) &print_directory_flag
, 1, 1, 0, 0, 0,
405 { CHAR_MAX
+3, flag
, (char *) &inhibit_print_directory_flag
, 1, 1, 0, 0, 0,
406 "no-print-directory" },
407 { 'W', string
, (char *) &new_files
, 0, 0, 0, 0, 0, "what-if" },
408 { CHAR_MAX
+4, flag
, (char *) &warn_undefined_variables_flag
, 1, 1, 0, 0, 0,
409 "warn-undefined-variables" },
413 /* Secondary long names for options. */
415 static struct option long_option_aliases
[] =
417 { "quiet", no_argument
, 0, 's' },
418 { "stop", no_argument
, 0, 'S' },
419 { "new-file", required_argument
, 0, 'W' },
420 { "assume-new", required_argument
, 0, 'W' },
421 { "assume-old", required_argument
, 0, 'o' },
422 { "max-load", optional_argument
, 0, 'l' },
423 { "dry-run", no_argument
, 0, 'n' },
424 { "recon", no_argument
, 0, 'n' },
425 { "makefile", required_argument
, 0, 'f' },
428 /* List of goal targets. */
430 static struct dep
*goals
, *lastgoal
;
432 /* List of variables which were defined on the command line
433 (or, equivalently, in MAKEFLAGS). */
435 struct command_variable
437 struct command_variable
*next
;
438 struct variable
*variable
;
440 static struct command_variable
*command_variables
;
442 /* The name we were invoked with. */
446 /* Our current directory before processing any -C options. */
448 char *directory_before_chdir
;
450 /* Our current directory after processing all -C options. */
452 char *starting_directory
;
454 /* Value of the MAKELEVEL variable at startup (or 0). */
456 unsigned int makelevel
;
458 /* First file defined in the makefile whose name does not
459 start with `.'. This is the default to remake if the
460 command line does not specify. */
462 struct file
*default_goal_file
;
464 /* Pointer to structure for the file .DEFAULT
465 whose commands are used for any file that has none of its own.
466 This is zero if the makefiles do not define .DEFAULT. */
468 struct file
*default_file
;
470 /* Nonzero if we have seen the magic `.POSIX' target.
471 This turns on pedantic compliance with POSIX.2. */
475 /* Nonzero if we have seen the `.NOTPARALLEL' target.
476 This turns off parallel builds for this invocation of make. */
480 /* Nonzero if some rule detected clock skew; we keep track so (a) we only
481 print one warning about it during the run, and (b) we can print a final
482 warning at the end of the run. */
484 int clock_skew_detected
;
486 /* Mask of signals that are being caught with fatal_error_signal. */
489 sigset_t fatal_signal_set
;
491 # ifdef HAVE_SIGSETMASK
492 int fatal_signal_mask
;
496 #if !defined HAVE_BSD_SIGNAL && !defined bsd_signal
497 # if !defined HAVE_SIGACTION
498 # define bsd_signal signal
500 typedef RETSIGTYPE (*bsd_signal_ret_t
) ();
502 static bsd_signal_ret_t
503 bsd_signal (int sig
, bsd_signal_ret_t func
)
505 struct sigaction act
, oact
;
506 act
.sa_handler
= func
;
507 act
.sa_flags
= SA_RESTART
;
508 sigemptyset (&act
.sa_mask
);
509 sigaddset (&act
.sa_mask
, sig
);
510 if (sigaction (sig
, &act
, &oact
) != 0)
512 return oact
.sa_handler
;
518 initialize_global_hash_tables (void)
520 init_hash_global_variable_set ();
522 hash_init_directories ();
523 hash_init_function_table ();
527 enter_command_line_file (char *name
)
530 fatal (NILF
, _("empty string invalid as file name"));
534 char *expanded
= tilde_expand (name
);
536 name
= expanded
; /* Memory leak; I don't care. */
539 /* This is also done in parse_file_seq, so this is redundant
540 for names read from makefiles. It is here for names passed
541 on the command line. */
542 while (name
[0] == '.' && name
[1] == '/' && name
[2] != '\0')
546 /* Skip following slashes: ".//foo" is "foo", not "/foo". */
552 /* It was all slashes! Move back to the dot and truncate
553 it after the first slash, so it becomes just "./". */
556 while (name
[0] != '.');
560 return enter_file (xstrdup (name
));
563 /* Toggle -d on receipt of SIGUSR1. */
567 debug_signal_handler (int sig UNUSED
)
569 db_level
= db_level
? DB_NONE
: DB_BASIC
;
574 decode_debug_flags (void)
584 for (pp
=db_flags
->list
; *pp
; ++pp
)
590 switch (tolower (p
[0]))
596 db_level
|= DB_BASIC
;
599 db_level
|= DB_BASIC
| DB_IMPLICIT
;
605 db_level
|= DB_BASIC
| DB_MAKEFILES
;
608 db_level
|= DB_BASIC
| DB_VERBOSE
;
611 fatal (NILF
, _("unknown debug level specification `%s'"), p
);
614 while (*(++p
) != '\0')
615 if (*p
== ',' || *p
== ' ')
628 * HANDLE runtime exceptions by avoiding a requestor on the GUI. Capture
629 * exception and print it to stderr instead.
631 * If ! DB_VERBOSE, just print a simple message and exit.
632 * If DB_VERBOSE, print a more verbose message.
633 * If compiled for DEBUG, let exception pass through to GUI so that
634 * debuggers can attach.
637 handle_runtime_exceptions( struct _EXCEPTION_POINTERS
*exinfo
)
639 PEXCEPTION_RECORD exrec
= exinfo
->ExceptionRecord
;
640 LPSTR cmdline
= GetCommandLine();
641 LPSTR prg
= strtok(cmdline
, " ");
645 LPTSTR lpszStrings
[1];
648 if (! ISDB (DB_VERBOSE
))
651 _("%s: Interrupt/Exception caught (code = 0x%x, addr = 0x%x)\n"),
652 prg
, exrec
->ExceptionCode
, exrec
->ExceptionAddress
);
653 fprintf(stderr
, errmsg
);
658 _("\nUnhandled exception filter called from program %s\nExceptionCode = %x\nExceptionFlags = %x\nExceptionAddress = %x\n"),
659 prg
, exrec
->ExceptionCode
, exrec
->ExceptionFlags
,
660 exrec
->ExceptionAddress
);
662 if (exrec
->ExceptionCode
== EXCEPTION_ACCESS_VIOLATION
663 && exrec
->NumberParameters
>= 2)
664 sprintf(&errmsg
[strlen(errmsg
)],
665 (exrec
->ExceptionInformation
[0]
666 ? _("Access violation: write operation at address %x\n")
667 : _("Access violation: read operation at address %x\n")),
668 exrec
->ExceptionInformation
[1]);
670 /* turn this on if we want to put stuff in the event log too */
672 hEventSource
= RegisterEventSource(NULL
, "GNU Make");
673 lpszStrings
[0] = errmsg
;
675 if (hEventSource
!= NULL
)
677 ReportEvent(hEventSource
, /* handle of event source */
678 EVENTLOG_ERROR_TYPE
, /* event type */
679 0, /* event category */
681 NULL
, /* current user's SID */
682 1, /* strings in lpszStrings */
683 0, /* no bytes of raw data */
684 lpszStrings
, /* array of error strings */
685 NULL
); /* no raw data */
687 (VOID
) DeregisterEventSource(hEventSource
);
691 /* Write the error to stderr too */
692 fprintf(stderr
, errmsg
);
695 return EXCEPTION_CONTINUE_SEARCH
;
698 return (255); /* not reached */
703 * On WIN32 systems we don't have the luxury of a /bin directory that
704 * is mapped globally to every drive mounted to the system. Since make could
705 * be invoked from any drive, and we don't want to propogate /bin/sh
706 * to every single drive. Allow ourselves a chance to search for
707 * a value for default shell here (if the default path does not exist).
711 find_and_set_default_shell (char *token
)
717 extern char *default_shell
;
720 search_token
= default_shell
;
722 search_token
= token
;
725 /* If the user explicitly requests the DOS cmd shell, obey that request.
726 However, make sure that's what they really want by requiring the value
727 of SHELL either equal, or have a final path element of, "cmd" or
728 "cmd.exe" case-insensitive. */
729 tokend
= search_token
+ strlen (search_token
) - 3;
730 if (((tokend
== search_token
731 || (tokend
> search_token
732 && (tokend
[-1] == '/' || tokend
[-1] == '\\')))
733 && !strcmpi (tokend
, "cmd"))
734 || ((tokend
- 4 == search_token
735 || (tokend
- 4 > search_token
736 && (tokend
[-5] == '/' || tokend
[-5] == '\\')))
737 && !strcmpi (tokend
- 4, "cmd.exe"))) {
738 batch_mode_shell
= 1;
741 } else if (!no_default_sh_exe
&&
742 (token
== NULL
|| !strcmp (search_token
, default_shell
))) {
743 /* no new information, path already set or known */
745 } else if (file_exists_p(search_token
)) {
746 /* search token path was found */
747 sprintf(sh_path
, "%s", search_token
);
748 default_shell
= xstrdup(w32ify(sh_path
,0));
750 (_("find_and_set_shell setting default_shell = %s\n"), default_shell
));
754 struct variable
*v
= lookup_variable ("Path", 4);
757 * Search Path for shell
763 ep
= strchr(p
, PATH_SEPARATOR_CHAR
);
768 if (dir_file_exists_p(p
, search_token
)) {
769 sprintf(sh_path
, "%s/%s", p
, search_token
);
770 default_shell
= xstrdup(w32ify(sh_path
,0));
772 *ep
= PATH_SEPARATOR_CHAR
;
777 *ep
= PATH_SEPARATOR_CHAR
;
781 ep
= strchr(p
, PATH_SEPARATOR_CHAR
);
784 /* be sure to check last element of Path */
785 if (p
&& *p
&& dir_file_exists_p(p
, search_token
)) {
786 sprintf(sh_path
, "%s/%s", p
, search_token
);
787 default_shell
= xstrdup(w32ify(sh_path
,0));
793 (_("find_and_set_shell path search set default_shell = %s\n"),
799 if (!unixy_shell
&& sh_found
&&
800 (strstr(default_shell
, "sh") || strstr(default_shell
, "SH"))) {
802 batch_mode_shell
= 0;
805 #ifdef BATCH_MODE_ONLY_SHELL
806 batch_mode_shell
= 1;
811 #endif /* WINDOWS32 */
816 msdos_return_to_initial_directory (void)
818 if (directory_before_chdir
)
819 chdir (directory_before_chdir
);
823 extern char *mktemp
PARAMS ((char *template));
824 extern int mkstemp
PARAMS ((char *template));
827 open_tmpfile(char **name
, const char *template)
831 #if defined HAVE_MKSTEMP || defined HAVE_MKTEMP
832 # define TEMPLATE_LEN strlen (template)
834 # define TEMPLATE_LEN L_tmpnam
836 *name
= xmalloc (TEMPLATE_LEN
+ 1);
837 strcpy (*name
, template);
839 #if defined HAVE_MKSTEMP && defined HAVE_FDOPEN
840 /* It's safest to use mkstemp(), if we can. */
841 fd
= mkstemp (*name
);
844 return fdopen (fd
, "w");
847 (void) mktemp (*name
);
849 (void) tmpnam (*name
);
853 /* Can't use mkstemp(), but guard against a race condition. */
854 fd
= open (*name
, O_CREAT
|O_EXCL
|O_WRONLY
, 0600);
857 return fdopen (fd
, "w");
859 /* Not secure, but what can we do? */
860 return fopen (*name
, "w");
868 main (int argc
, char **argv
)
871 main (int argc
, char **argv
, char **envp
)
874 static char *stdin_nm
= 0;
877 int makefile_status
= MAKE_SUCCESS
;
879 struct dep
*read_makefiles
;
880 PATH_VAR (current_directory
);
882 char *unix_path
= NULL
;
883 char *windows32_path
= NULL
;
885 SetUnhandledExceptionFilter(handle_runtime_exceptions
);
887 /* start off assuming we have no shell */
889 no_default_sh_exe
= 1;
892 #ifdef SET_STACK_SIZE
893 /* Get rid of any avoidable limit on stack size. */
897 /* Set the stack limit huge so that alloca does not fail. */
898 if (getrlimit (RLIMIT_STACK
, &rlim
) == 0)
900 rlim
.rlim_cur
= rlim
.rlim_max
;
901 setrlimit (RLIMIT_STACK
, &rlim
);
906 /* Needed for OS/2 */
907 initialize_main(&argc
, &argv
);
909 default_goal_file
= 0;
912 #if defined (__MSDOS__) && !defined (_POSIX_SOURCE)
913 /* Request the most powerful version of `system', to
914 make up for the dumb default shell. */
915 __system_flags
= (__system_redirect
917 | __system_allow_multiple_cmds
918 | __system_allow_long_cmds
919 | __system_handle_null_commands
920 | __system_emulate_chdir
);
924 /* Set up gettext/internationalization support. */
925 setlocale (LC_ALL
, "");
926 bindtextdomain (PACKAGE
, LOCALEDIR
);
927 textdomain (PACKAGE
);
930 sigemptyset (&fatal_signal_set
);
931 #define ADD_SIG(sig) sigaddset (&fatal_signal_set, sig)
933 #ifdef HAVE_SIGSETMASK
934 fatal_signal_mask
= 0;
935 #define ADD_SIG(sig) fatal_signal_mask |= sigmask (sig)
941 #define FATAL_SIG(sig) \
942 if (bsd_signal (sig, fatal_error_signal) == SIG_IGN) \
943 bsd_signal (sig, SIG_IGN); \
957 /* Windows 9X delivers FP exceptions in child programs to their
958 parent! We don't want Make to die when a child divides by zero,
959 so we work around that lossage by catching SIGFPE. */
964 FATAL_SIG (SIGDANGER
);
975 /* Do not ignore the child-death signal. This must be done before
976 any children could possibly be created; otherwise, the wait
977 functions won't work on systems with the SVR4 ECHILD brain
978 damage, if our invoker is ignoring this signal. */
980 #ifdef HAVE_WAIT_NOHANG
982 (void) bsd_signal (SIGCHLD
, SIG_DFL
);
984 # if defined SIGCLD && SIGCLD != SIGCHLD
985 (void) bsd_signal (SIGCLD
, SIG_DFL
);
989 /* Make sure stdout is line-buffered. */
992 # ifdef SETVBUF_REVERSED
993 setvbuf (stdout
, _IOLBF
, xmalloc (BUFSIZ
), BUFSIZ
);
994 # else /* setvbuf not reversed. */
995 /* Some buggy systems lose if we pass 0 instead of allocating ourselves. */
996 setvbuf (stdout
, (char *) 0, _IOLBF
, BUFSIZ
);
997 # endif /* setvbuf reversed. */
998 #elif HAVE_SETLINEBUF
1000 #endif /* setlinebuf missing. */
1002 /* Figure out where this program lives. */
1006 if (argv
[0][0] == '\0')
1011 program
= strrchr (argv
[0], ']');
1013 program
= strrchr (argv
[0], '/');
1015 #if defined(__MSDOS__) || defined(__EMX__)
1017 program
= strrchr (argv
[0], '\\');
1020 /* Some weird environments might pass us argv[0] with
1021 both kinds of slashes; we must find the rightmost. */
1022 char *p
= strrchr (argv
[0], '\\');
1023 if (p
&& p
> program
)
1026 if (program
== 0 && argv
[0][1] == ':')
1027 program
= argv
[0] + 1;
1032 /* Extract program from full path */
1034 char *p
= strrchr (argv
[0], '\\');
1037 argv0_len
= strlen(p
);
1039 && streq (&p
[argv0_len
- 4], ".exe"))
1041 /* Remove .exe extension */
1042 p
[argv0_len
- 4] = '\0';
1043 /* Increment past the initial '\' */
1054 /* Set up to access user data (files). */
1057 initialize_global_hash_tables ();
1059 /* Figure out where we are. */
1062 if (getcwd_fs (current_directory
, GET_PATH_MAX
) == 0)
1064 if (getcwd (current_directory
, GET_PATH_MAX
) == 0)
1068 perror_with_name ("getcwd: ", "");
1070 error (NILF
, "getwd: %s", current_directory
);
1072 current_directory
[0] = '\0';
1073 directory_before_chdir
= 0;
1076 directory_before_chdir
= xstrdup (current_directory
);
1078 /* Make sure we will return to the initial directory, come what may. */
1079 atexit (msdos_return_to_initial_directory
);
1082 /* Initialize the special variables. */
1083 define_variable (".VARIABLES", 10, "", o_default
, 0)->special
= 1;
1084 /* define_variable (".TARGETS", 8, "", o_default, 0); */
1086 /* Read in variables from the environment. It is important that this be
1087 done before $(MAKE) is figured out so its definitions will not be
1088 from the environment. */
1091 for (i
= 0; envp
[i
] != 0; ++i
)
1093 int do_not_define
= 0;
1099 if (!unix_path
&& strneq(envp
[i
], "PATH=", 5))
1101 else if (!windows32_path
&& !strnicmp(envp
[i
], "Path=", 5)) {
1102 do_not_define
= 1; /* it gets defined after loop exits */
1103 windows32_path
= ep
+1;
1106 /* The result of pointer arithmetic is cast to unsigned int for
1107 machines where ptrdiff_t is a different size that doesn't widen
1113 v
= define_variable (envp
[i
], (unsigned int) (ep
- envp
[i
]),
1115 /* Force exportation of every variable culled from the environment.
1116 We used to rely on target_environment's v_default code to do this.
1117 But that does not work for the case where an environment variable
1118 is redefined in a makefile with `override'; it should then still
1119 be exported, because it was originally in the environment. */
1120 v
->export
= v_export
;
1122 /* Another wrinkle is that POSIX says the value of SHELL set in the
1123 makefile should not change the value of SHELL given to
1124 subprocesses, which seems silly to me but... */
1125 if (strncmp (envp
[i
], "SHELL=", 6) == 0)
1127 v
->export
= v_noexport
;
1128 shell_var
.name
= "SHELL";
1129 shell_var
.value
= xstrdup (ep
+ 1);
1135 * Make sure that this particular spelling of 'Path' is available
1138 define_variable("Path", 4, windows32_path
, o_env
, 1)->export
= v_export
;
1140 define_variable("Path", 4, unix_path
, o_env
, 1)->export
= v_export
;
1142 define_variable("Path", 4, "", o_env
, 1)->export
= v_export
;
1145 * PATH defaults to Path iff PATH not found and Path is found.
1147 if (!unix_path
&& windows32_path
)
1148 define_variable("PATH", 4, windows32_path
, o_env
, 1)->export
= v_export
;
1150 #else /* For Amiga, read the ENV: device, ignoring all dirs */
1152 BPTR env
, file
, old
;
1155 __aligned
struct FileInfoBlock fib
;
1157 env
= Lock ("ENV:", ACCESS_READ
);
1160 old
= CurrentDir (DupLock(env
));
1161 Examine (env
, &fib
);
1163 while (ExNext (env
, &fib
))
1165 if (fib
.fib_DirEntryType
< 0) /* File */
1167 /* Define an empty variable. It will be filled in
1168 variable_lookup(). Makes startup quite a bit
1170 define_variable (fib
.fib_FileName
,
1171 strlen (fib
.fib_FileName
),
1172 "", o_env
, 1)->export
= v_export
;
1176 UnLock(CurrentDir(old
));
1181 /* Decode the switches. */
1183 decode_env_switches ("MAKEFLAGS", 9);
1185 /* People write things like:
1186 MFLAGS="CC=gcc -pipe" "CFLAGS=-g"
1187 and we set the -p, -i and -e switches. Doesn't seem quite right. */
1188 decode_env_switches ("MFLAGS", 6);
1190 decode_switches (argc
, argv
, 0);
1193 fprintf(stderr
, "%s (pid = %d)\n", argv
[0], GetCurrentProcessId());
1194 fprintf(stderr
, _("%s is suspending for 30 seconds..."), argv
[0]);
1196 fprintf(stderr
, _("done sleep(30). Continuing.\n"));
1200 decode_debug_flags ();
1202 /* Print version information. */
1204 if (print_version_flag
|| print_data_base_flag
|| db_level
)
1207 /* `make --version' is supposed to just print the version and exit. */
1208 if (print_version_flag
)
1212 /* Set the "MAKE_COMMAND" variable to the name we were invoked with.
1213 (If it is a relative pathname with a slash, prepend our directory name
1214 so the result will run the same program regardless of the current dir.
1215 If it is a name with no slash, we can only hope that PATH did not
1216 find it in the current directory.) */
1219 * Convert from backslashes to forward slashes for
1220 * programs like sh which don't like them. Shouldn't
1221 * matter if the path is one way or the other for
1224 if (strpbrk(argv
[0], "/:\\") ||
1225 strstr(argv
[0], "..") ||
1226 strneq(argv
[0], "//", 2))
1227 argv
[0] = xstrdup(w32ify(argv
[0],1));
1228 #else /* WINDOWS32 */
1229 #if defined (__MSDOS__) || defined (__EMX__)
1230 if (strchr (argv
[0], '\\'))
1234 argv
[0] = xstrdup (argv
[0]);
1235 for (p
= argv
[0]; *p
; p
++)
1239 /* If argv[0] is not in absolute form, prepend the current
1240 directory. This can happen when Make is invoked by another DJGPP
1241 program that uses a non-absolute name. */
1242 if (current_directory
[0] != '\0'
1244 && (argv
[0][0] != '/' && (argv
[0][0] == '\0' || argv
[0][1] != ':'))
1246 /* do not prepend cwd if argv[0] contains no '/', e.g. "make" */
1247 && (strchr (argv
[0], '/') != 0 || strchr (argv
[0], '\\') != 0)
1250 argv
[0] = concat (current_directory
, "/", argv
[0]);
1251 #else /* !__MSDOS__ */
1252 if (current_directory
[0] != '\0'
1253 && argv
[0] != 0 && argv
[0][0] != '/' && strchr (argv
[0], '/') != 0)
1254 argv
[0] = concat (current_directory
, "/", argv
[0]);
1255 #endif /* !__MSDOS__ */
1256 #endif /* WINDOWS32 */
1259 /* The extra indirection through $(MAKE_COMMAND) is done
1260 for hysterical raisins. */
1261 (void) define_variable ("MAKE_COMMAND", 12, argv
[0], o_default
, 0);
1262 (void) define_variable ("MAKE", 4, "$(MAKE_COMMAND)", o_default
, 1);
1264 if (command_variables
!= 0)
1266 struct command_variable
*cv
;
1268 unsigned int len
= 0;
1271 /* Figure out how much space will be taken up by the command-line
1272 variable definitions. */
1273 for (cv
= command_variables
; cv
!= 0; cv
= cv
->next
)
1276 len
+= 2 * strlen (v
->name
);
1280 len
+= 2 * strlen (v
->value
);
1284 /* Now allocate a buffer big enough and fill it. */
1285 p
= value
= (char *) alloca (len
);
1286 for (cv
= command_variables
; cv
!= 0; cv
= cv
->next
)
1289 p
= quote_for_env (p
, v
->name
);
1293 p
= quote_for_env (p
, v
->value
);
1296 p
[-1] = '\0'; /* Kill the final space and terminate. */
1298 /* Define an unchangeable variable with a name that no POSIX.2
1299 makefile could validly use for its own variable. */
1300 (void) define_variable ("-*-command-variables-*-", 23,
1301 value
, o_automatic
, 0);
1303 /* Define the variable; this will not override any user definition.
1304 Normally a reference to this variable is written into the value of
1305 MAKEFLAGS, allowing the user to override this value to affect the
1306 exported value of MAKEFLAGS. In POSIX-pedantic mode, we cannot
1307 allow the user's setting of MAKEOVERRIDES to affect MAKEFLAGS, so
1308 a reference to this hidden variable is written instead. */
1309 (void) define_variable ("MAKEOVERRIDES", 13,
1310 "${-*-command-variables-*-}", o_env
, 1);
1313 /* If there were -C flags, move ourselves about. */
1314 if (directories
!= 0)
1315 for (i
= 0; directories
->list
[i
] != 0; ++i
)
1317 char *dir
= directories
->list
[i
];
1321 expanded
= tilde_expand (dir
);
1326 /* WINDOWS32 chdir() doesn't work if the directory has a trailing '/'
1327 But allow -C/ just in case someone wants that. */
1329 char *p
= dir
+ strlen (dir
) - 1;
1330 while (p
> dir
&& (p
[0] == '/' || p
[0] == '\\'))
1335 if (chdir (dir
) < 0)
1336 pfatal_with_name (dir
);
1343 * THIS BLOCK OF CODE MUST COME AFTER chdir() CALL ABOVE IN ORDER
1344 * TO NOT CONFUSE THE DEPENDENCY CHECKING CODE IN implicit.c.
1346 * The functions in dir.c can incorrectly cache information for "."
1347 * before we have changed directory and this can cause file
1348 * lookups to fail because the current directory (.) was pointing
1349 * at the wrong place when it was first evaluated.
1351 no_default_sh_exe
= !find_and_set_default_shell(NULL
);
1353 #endif /* WINDOWS32 */
1354 /* Figure out the level of recursion. */
1356 struct variable
*v
= lookup_variable (MAKELEVEL_NAME
, MAKELEVEL_LENGTH
);
1357 if (v
!= 0 && v
->value
[0] != '\0' && v
->value
[0] != '-')
1358 makelevel
= (unsigned int) atoi (v
->value
);
1363 /* Except under -s, always do -w in sub-makes and under -C. */
1364 if (!silent_flag
&& (directories
!= 0 || makelevel
> 0))
1365 print_directory_flag
= 1;
1367 /* Let the user disable that with --no-print-directory. */
1368 if (inhibit_print_directory_flag
)
1369 print_directory_flag
= 0;
1371 /* If -R was given, set -r too (doesn't make sense otherwise!) */
1372 if (no_builtin_variables_flag
)
1373 no_builtin_rules_flag
= 1;
1375 /* Construct the list of include directories to search. */
1377 construct_include_path (include_directories
== 0 ? (char **) 0
1378 : include_directories
->list
);
1380 /* Figure out where we are now, after chdir'ing. */
1381 if (directories
== 0)
1382 /* We didn't move, so we're still in the same place. */
1383 starting_directory
= current_directory
;
1387 if (getcwd_fs (current_directory
, GET_PATH_MAX
) == 0)
1389 if (getcwd (current_directory
, GET_PATH_MAX
) == 0)
1393 perror_with_name ("getcwd: ", "");
1395 error (NILF
, "getwd: %s", current_directory
);
1397 starting_directory
= 0;
1400 starting_directory
= current_directory
;
1403 (void) define_variable ("CURDIR", 6, current_directory
, o_default
, 0);
1405 /* Read any stdin makefiles into temporary files. */
1409 register unsigned int i
;
1410 for (i
= 0; i
< makefiles
->idx
; ++i
)
1411 if (makefiles
->list
[i
][0] == '-' && makefiles
->list
[i
][1] == '\0')
1413 /* This makefile is standard input. Since we may re-exec
1414 and thus re-read the makefiles, we read standard input
1415 into a temporary file and read from that. */
1417 char *template, *tmpdir
;
1420 fatal (NILF
, _("Makefile from standard input specified twice."));
1423 # define DEFAULT_TMPDIR "sys$scratch:"
1426 # define DEFAULT_TMPDIR P_tmpdir
1428 # define DEFAULT_TMPDIR "/tmp"
1431 #define DEFAULT_TMPFILE "GmXXXXXX"
1433 if (((tmpdir
= getenv ("TMPDIR")) == NULL
|| *tmpdir
== '\0')
1434 #if defined (__MSDOS__) || defined (WINDOWS32) || defined (__EMX__)
1435 /* These are also used commonly on these platforms. */
1436 && ((tmpdir
= getenv ("TEMP")) == NULL
|| *tmpdir
== '\0')
1437 && ((tmpdir
= getenv ("TMP")) == NULL
|| *tmpdir
== '\0')
1440 tmpdir
= DEFAULT_TMPDIR
;
1442 template = (char *) alloca (strlen (tmpdir
)
1443 + sizeof (DEFAULT_TMPFILE
) + 1);
1444 strcpy (template, tmpdir
);
1446 #ifdef HAVE_DOS_PATHS
1447 if (strchr ("/\\", template[strlen (template) - 1]) == NULL
)
1448 strcat (template, "/");
1451 if (template[strlen (template) - 1] != '/')
1452 strcat (template, "/");
1454 #endif /* !HAVE_DOS_PATHS */
1456 strcat (template, DEFAULT_TMPFILE
);
1457 outfile
= open_tmpfile (&stdin_nm
, template);
1459 pfatal_with_name (_("fopen (temporary file)"));
1460 while (!feof (stdin
))
1463 unsigned int n
= fread (buf
, 1, sizeof (buf
), stdin
);
1464 if (n
> 0 && fwrite (buf
, 1, n
, outfile
) != n
)
1465 pfatal_with_name (_("fwrite (temporary file)"));
1467 (void) fclose (outfile
);
1469 /* Replace the name that read_all_makefiles will
1470 see with the name of the temporary file. */
1471 makefiles
->list
[i
] = xstrdup (stdin_nm
);
1473 /* Make sure the temporary file will not be remade. */
1474 f
= enter_file (stdin_nm
);
1476 f
->update_status
= 0;
1477 f
->command_state
= cs_finished
;
1478 /* Can't be intermediate, or it'll be removed too early for
1480 f
->intermediate
= 0;
1485 #ifndef __EMX__ /* Don't use a SIGCHLD handler for OS/2 */
1486 #if defined(MAKE_JOBSERVER) || !defined(HAVE_WAIT_NOHANG)
1487 /* Set up to handle children dying. This must be done before
1488 reading in the makefiles so that `shell' function calls will work.
1490 If we don't have a hanging wait we have to fall back to old, broken
1491 functionality here and rely on the signal handler and counting
1494 If we're using the jobs pipe we need a signal handler so that
1495 SIGCHLD is not ignored; we need it to interrupt the read(2) of the
1496 jobserver pipe in job.c if we're waiting for a token.
1498 If none of these are true, we don't need a signal handler at all. */
1500 extern RETSIGTYPE child_handler
PARAMS ((int sig
));
1501 # if defined SIGCHLD
1502 bsd_signal (SIGCHLD
, child_handler
);
1504 # if defined SIGCLD && SIGCLD != SIGCHLD
1505 bsd_signal (SIGCLD
, child_handler
);
1511 /* Let the user send us SIGUSR1 to toggle the -d flag during the run. */
1513 bsd_signal (SIGUSR1
, debug_signal_handler
);
1516 /* Define the initial list of suffixes for old-style rules. */
1518 set_default_suffixes ();
1520 /* Define the file rules for the built-in suffix rules. These will later
1521 be converted into pattern rules. We used to do this in
1522 install_default_implicit_rules, but since that happens after reading
1523 makefiles, it results in the built-in pattern rules taking precedence
1524 over makefile-specified suffix rules, which is wrong. */
1526 install_default_suffix_rules ();
1528 /* Define some internal and special variables. */
1530 define_automatic_variables ();
1532 /* Set up the MAKEFLAGS and MFLAGS variables
1533 so makefiles can look at them. */
1535 define_makeflags (0, 0);
1537 /* Define the default variables. */
1538 define_default_variables ();
1540 /* Read all the makefiles. */
1542 default_file
= enter_file (".DEFAULT");
1545 = read_all_makefiles (makefiles
== 0 ? (char **) 0 : makefiles
->list
);
1548 /* look one last time after reading all Makefiles */
1549 if (no_default_sh_exe
)
1550 no_default_sh_exe
= !find_and_set_default_shell(NULL
);
1552 if (no_default_sh_exe
&& job_slots
!= 1) {
1553 error (NILF
, _("Do not specify -j or --jobs if sh.exe is not available."));
1554 error (NILF
, _("Resetting make for single job mode."));
1557 #endif /* WINDOWS32 */
1559 #if defined (__MSDOS__) || defined (__EMX__)
1560 /* We need to know what kind of shell we will be using. */
1562 extern int _is_unixy_shell (const char *_path
);
1563 struct variable
*shv
= lookup_variable ("SHELL", 5);
1564 extern int unixy_shell
;
1565 extern char *default_shell
;
1567 if (shv
&& *shv
->value
)
1569 char *shell_path
= recursively_expand(shv
);
1571 if (shell_path
&& _is_unixy_shell (shell_path
))
1576 default_shell
= shell_path
;
1579 #endif /* __MSDOS__ || __EMX__ */
1581 /* Decode switches again, in case the variables were set by the makefile. */
1582 decode_env_switches ("MAKEFLAGS", 9);
1584 decode_env_switches ("MFLAGS", 6);
1587 #if defined (__MSDOS__) || defined (__EMX__)
1590 && _osmode
!= OS2_MODE
/* turn off -j if we are in DOS mode */
1595 _("Parallel jobs (-j) are not supported on this platform."));
1596 error (NILF
, _("Resetting to single job (-j1) mode."));
1601 #ifdef MAKE_JOBSERVER
1602 /* If the jobserver-fds option is seen, make sure that -j is reasonable. */
1609 for (ui
=1; ui
< jobserver_fds
->idx
; ++ui
)
1610 if (!streq (jobserver_fds
->list
[0], jobserver_fds
->list
[ui
]))
1611 fatal (NILF
, _("internal error: multiple --jobserver-fds options"));
1613 /* Now parse the fds string and make sure it has the proper format. */
1615 cp
= jobserver_fds
->list
[0];
1617 if (sscanf (cp
, "%d,%d", &job_fds
[0], &job_fds
[1]) != 2)
1619 _("internal error: invalid --jobserver-fds string `%s'"), cp
);
1621 /* The combination of a pipe + !job_slots means we're using the
1622 jobserver. If !job_slots and we don't have a pipe, we can start
1623 infinite jobs. If we see both a pipe and job_slots >0 that means the
1624 user set -j explicitly. This is broken; in this case obey the user
1625 (ignore the jobserver pipe for this make) but print a message. */
1629 _("warning: -jN forced in submake: disabling jobserver mode."));
1631 /* Create a duplicate pipe, that will be closed in the SIGCHLD
1632 handler. If this fails with EBADF, the parent has closed the pipe
1633 on us because it didn't think we were a submake. If so, print a
1634 warning then default to -j1. */
1636 else if ((job_rfd
= dup (job_fds
[0])) < 0)
1639 pfatal_with_name (_("dup jobserver"));
1642 _("warning: jobserver unavailable: using -j1. Add `+' to parent make rule."));
1650 job_fds
[0] = job_fds
[1] = -1;
1651 free (jobserver_fds
->list
);
1652 free (jobserver_fds
);
1657 /* If we have >1 slot but no jobserver-fds, then we're a top-level make.
1658 Set up the pipe and install the fds option for our children. */
1664 if (pipe (job_fds
) < 0 || (job_rfd
= dup (job_fds
[0])) < 0)
1665 pfatal_with_name (_("creating jobs pipe"));
1667 /* Every make assumes that it always has one job it can run. For the
1668 submakes it's the token they were given by their parent. For the
1669 top make, we just subtract one from the number the user wants. We
1670 want job_slots to be 0 to indicate we're using the jobserver. */
1676 EINTRLOOP (r
, write (job_fds
[1], &c
, 1));
1678 pfatal_with_name (_("init jobserver pipe"));
1681 /* Fill in the jobserver_fds struct for our children. */
1683 jobserver_fds
= (struct stringlist
*)
1684 xmalloc (sizeof (struct stringlist
));
1685 jobserver_fds
->list
= (char **) xmalloc (sizeof (char *));
1686 jobserver_fds
->list
[0] = xmalloc ((sizeof ("1024")*2)+1);
1688 sprintf (jobserver_fds
->list
[0], "%d,%d", job_fds
[0], job_fds
[1]);
1689 jobserver_fds
->idx
= 1;
1690 jobserver_fds
->max
= 1;
1694 /* Set up MAKEFLAGS and MFLAGS again, so they will be right. */
1696 define_makeflags (1, 0);
1698 /* Make each `struct dep' point at the `struct file' for the file
1699 depended on. Also do magic for special targets. */
1703 /* Convert old-style suffix rules to pattern rules. It is important to
1704 do this before installing the built-in pattern rules below, so that
1705 makefile-specified suffix rules take precedence over built-in pattern
1708 convert_to_pattern ();
1710 /* Install the default implicit pattern rules.
1711 This used to be done before reading the makefiles.
1712 But in that case, built-in pattern rules were in the chain
1713 before user-defined ones, so they matched first. */
1715 install_default_implicit_rules ();
1717 /* Compute implicit rule limits. */
1719 count_implicit_rule_limits ();
1721 /* Construct the listings of directories in VPATH lists. */
1723 build_vpath_lists ();
1725 /* Mark files given with -o flags as very old
1726 and as having been updated already, and files given with -W flags as
1727 brand new (time-stamp as far as possible into the future). */
1730 for (p
= old_files
->list
; *p
!= 0; ++p
)
1732 f
= enter_command_line_file (*p
);
1733 f
->last_mtime
= f
->mtime_before_update
= OLD_MTIME
;
1735 f
->update_status
= 0;
1736 f
->command_state
= cs_finished
;
1741 for (p
= new_files
->list
; *p
!= 0; ++p
)
1743 f
= enter_command_line_file (*p
);
1744 f
->last_mtime
= f
->mtime_before_update
= NEW_MTIME
;
1748 /* Initialize the remote job module. */
1751 if (read_makefiles
!= 0)
1753 /* Update any makefiles if necessary. */
1755 FILE_TIMESTAMP
*makefile_mtimes
= 0;
1756 unsigned int mm_idx
= 0;
1757 char **nargv
= argv
;
1759 int orig_db_level
= db_level
;
1762 if (! ISDB (DB_MAKEFILES
))
1765 DB (DB_BASIC
, (_("Updating makefiles....\n")));
1767 /* Remove any makefiles we don't want to try to update.
1768 Also record the current modtimes so we can compare them later. */
1770 register struct dep
*d
, *last
;
1775 register struct file
*f
= d
->file
;
1776 if (f
->double_colon
)
1777 for (f
= f
->double_colon
; f
!= NULL
; f
= f
->prev
)
1779 if (f
->deps
== 0 && f
->cmds
!= 0)
1781 /* This makefile is a :: target with commands, but
1782 no dependencies. So, it will always be remade.
1783 This might well cause an infinite loop, so don't
1784 try to remake it. (This will only happen if
1785 your makefiles are written exceptionally
1786 stupidly; but if you work for Athena, that's how
1787 you write your makefiles.) */
1790 (_("Makefile `%s' might loop; not remaking it.\n"),
1794 read_makefiles
= d
->next
;
1796 last
->next
= d
->next
;
1798 /* Free the storage. */
1801 d
= last
== 0 ? read_makefiles
: last
->next
;
1806 if (f
== NULL
|| !f
->double_colon
)
1808 makefile_mtimes
= (FILE_TIMESTAMP
*)
1809 xrealloc ((char *) makefile_mtimes
,
1810 (mm_idx
+ 1) * sizeof (FILE_TIMESTAMP
));
1811 makefile_mtimes
[mm_idx
++] = file_mtime_no_search (d
->file
);
1818 /* Set up `MAKEFLAGS' specially while remaking makefiles. */
1819 define_makeflags (1, 1);
1821 rebuilding_makefiles
= 1;
1822 status
= update_goal_chain (read_makefiles
);
1823 rebuilding_makefiles
= 0;
1828 /* The only way this can happen is if the user specified -q and asked
1829 * for one of the makefiles to be remade as a target on the command
1830 * line. Since we're not actually updating anything with -q we can
1831 * treat this as "did nothing".
1839 /* Failed to update. Figure out if we care. */
1841 /* Nonzero if any makefile was successfully remade. */
1843 /* Nonzero if any makefile we care about failed
1844 in updating or could not be found at all. */
1849 for (i
= 0, d
= read_makefiles
; d
!= 0; ++i
, d
= d
->next
)
1851 /* Reset the considered flag; we may need to look at the file
1852 again to print an error. */
1853 d
->file
->considered
= 0;
1855 if (d
->file
->updated
)
1857 /* This makefile was updated. */
1858 if (d
->file
->update_status
== 0)
1860 /* It was successfully updated. */
1861 any_remade
|= (file_mtime_no_search (d
->file
)
1862 != makefile_mtimes
[i
]);
1864 else if (! (d
->changed
& RM_DONTCARE
))
1866 FILE_TIMESTAMP mtime
;
1867 /* The update failed and this makefile was not
1868 from the MAKEFILES variable, so we care. */
1869 error (NILF
, _("Failed to remake makefile `%s'."),
1871 mtime
= file_mtime_no_search (d
->file
);
1872 any_remade
|= (mtime
!= NONEXISTENT_MTIME
1873 && mtime
!= makefile_mtimes
[i
]);
1874 makefile_status
= MAKE_FAILURE
;
1878 /* This makefile was not found at all. */
1879 if (! (d
->changed
& RM_DONTCARE
))
1881 /* This is a makefile we care about. See how much. */
1882 if (d
->changed
& RM_INCLUDED
)
1883 /* An included makefile. We don't need
1884 to die, but we do want to complain. */
1886 _("Included makefile `%s' was not found."),
1890 /* A normal makefile. We must die later. */
1891 error (NILF
, _("Makefile `%s' was not found"),
1897 /* Reset this to empty so we get the right error message below. */
1909 /* Updated successfully. Re-exec ourselves. */
1911 remove_intermediates (0);
1913 if (print_data_base_flag
)
1916 log_working_directory (0);
1920 /* These names might have changed. */
1922 for (i
= 1; i
< argc
; ++i
)
1923 if (strneq (argv
[i
], "-f", 2)) /* XXX */
1925 char *p
= &argv
[i
][2];
1927 argv
[++i
] = makefiles
->list
[j
];
1929 argv
[i
] = concat ("-f", makefiles
->list
[j
], "");
1934 /* Add -o option for the stdin temporary file, if necessary. */
1937 nargv
= (char **) xmalloc ((nargc
+ 2) * sizeof (char *));
1938 bcopy ((char *) argv
, (char *) nargv
, argc
* sizeof (char *));
1939 nargv
[nargc
++] = concat ("-o", stdin_nm
, "");
1943 if (directories
!= 0 && directories
->idx
> 0)
1946 if (directory_before_chdir
!= 0)
1948 if (chdir (directory_before_chdir
) < 0)
1950 perror_with_name ("chdir", "");
1959 fatal (NILF
, _("Couldn't change back to original directory."));
1963 for (p
= environ
; *p
!= 0; ++p
)
1964 if (strneq (*p
, MAKELEVEL_NAME
, MAKELEVEL_LENGTH
)
1965 && (*p
)[MAKELEVEL_LENGTH
] == '=')
1967 /* The SGI compiler apparently can't understand
1968 the concept of storing the result of a function
1969 in something other than a local variable. */
1971 sgi_loses
= (char *) alloca (40);
1973 sprintf (*p
, "%s=%u", MAKELEVEL_NAME
, makelevel
);
1981 len
= GetVar (MAKELEVEL_NAME
, buffer
, sizeof (buffer
), GVF_GLOBAL_ONLY
);
1985 sprintf (buffer
, "%u", makelevel
);
1986 SetVar (MAKELEVEL_NAME
, buffer
, -1, GVF_GLOBAL_ONLY
);
1991 if (ISDB (DB_BASIC
))
1994 fputs (_("Re-executing:"), stdout
);
1995 for (p
= nargv
; *p
!= 0; ++p
)
2003 /* Close the dup'd jobserver pipe if we opened one. */
2008 exec_command (nargv
);
2010 #elif defined (__EMX__)
2012 /* It is not possible to use execve() here because this
2013 would cause the parent process to be terminated with
2014 exit code 0 before the child process has been terminated.
2015 Therefore it may be the best solution simply to spawn the
2016 child process including all file handles and to wait for its
2020 pid
= child_execute_job (0, 1, nargv
, environ
);
2022 /* is this loop really necessary? */
2024 pid
= wait (&status
);
2026 /* use the exit code of the child process */
2027 exit (WIFEXITED(status
) ? WEXITSTATUS(status
) : EXIT_FAILURE
);
2030 exec_command (nargv
, environ
);
2035 #define BOGUS_UPDATE_STATUS 0
2036 assert (BOGUS_UPDATE_STATUS
);
2040 db_level
= orig_db_level
;
2042 /* Free the makefile mtimes (if we allocated any). */
2043 if (makefile_mtimes
)
2044 free ((char *) makefile_mtimes
);
2047 /* Set up `MAKEFLAGS' again for the normal targets. */
2048 define_makeflags (1, 0);
2050 /* If there is a temp file from reading a makefile from stdin, get rid of
2052 if (stdin_nm
&& unlink (stdin_nm
) < 0 && errno
!= ENOENT
)
2053 perror_with_name (_("unlink (temporary file): "), stdin_nm
);
2058 /* If there were no command-line goals, use the default. */
2061 if (default_goal_file
!= 0)
2063 goals
= (struct dep
*) xmalloc (sizeof (struct dep
));
2066 goals
->ignore_mtime
= 0;
2067 goals
->file
= default_goal_file
;
2075 if (read_makefiles
== 0)
2076 fatal (NILF
, _("No targets specified and no makefile found"));
2078 fatal (NILF
, _("No targets"));
2081 /* Update the goals. */
2083 DB (DB_BASIC
, (_("Updating goal targets....\n")));
2085 switch (update_goal_chain (goals
))
2088 /* Nothing happened. */
2090 /* Updated successfully. */
2091 status
= makefile_status
;
2094 /* We are under -q and would run some commands. */
2095 status
= MAKE_TROUBLE
;
2098 /* Updating failed. POSIX.2 specifies exit status >1 for this;
2099 but in VMS, there is only success and failure. */
2100 status
= MAKE_FAILURE
;
2106 /* If we detected some clock skew, generate one last warning */
2107 if (clock_skew_detected
)
2109 _("warning: Clock skew detected. Your build may be incomplete."));
2118 /* Parsing of arguments, decoding of switches. */
2120 static char options
[1 + sizeof (switches
) / sizeof (switches
[0]) * 3];
2121 static struct option long_options
[(sizeof (switches
) / sizeof (switches
[0])) +
2122 (sizeof (long_option_aliases
) /
2123 sizeof (long_option_aliases
[0]))];
2125 /* Fill in the string and vector for getopt. */
2127 init_switches (void)
2133 if (options
[0] != '\0')
2139 /* Return switch and non-switch args in order, regardless of
2140 POSIXLY_CORRECT. Non-switch args are returned as option 1. */
2143 for (i
= 0; switches
[i
].c
!= '\0'; ++i
)
2145 long_options
[i
].name
= (switches
[i
].long_name
== 0 ? "" :
2146 switches
[i
].long_name
);
2147 long_options
[i
].flag
= 0;
2148 long_options
[i
].val
= switches
[i
].c
;
2149 if (short_option (switches
[i
].c
))
2150 *p
++ = switches
[i
].c
;
2151 switch (switches
[i
].type
)
2156 long_options
[i
].has_arg
= no_argument
;
2162 if (short_option (switches
[i
].c
))
2164 if (switches
[i
].noarg_value
!= 0)
2166 if (short_option (switches
[i
].c
))
2168 long_options
[i
].has_arg
= optional_argument
;
2171 long_options
[i
].has_arg
= required_argument
;
2176 for (c
= 0; c
< (sizeof (long_option_aliases
) /
2177 sizeof (long_option_aliases
[0]));
2179 long_options
[i
++] = long_option_aliases
[c
];
2180 long_options
[i
].name
= 0;
2184 handle_non_switch_argument (char *arg
, int env
)
2186 /* Non-option argument. It might be a variable definition. */
2188 if (arg
[0] == '-' && arg
[1] == '\0')
2189 /* Ignore plain `-' for compatibility. */
2191 v
= try_variable_definition (0, arg
, o_command
, 0);
2194 /* It is indeed a variable definition. If we don't already have this
2195 one, record a pointer to the variable for later use in
2196 define_makeflags. */
2197 struct command_variable
*cv
;
2199 for (cv
= command_variables
; cv
!= 0; cv
= cv
->next
)
2200 if (cv
->variable
== v
)
2204 cv
= (struct command_variable
*) xmalloc (sizeof (*cv
));
2206 cv
->next
= command_variables
;
2207 command_variables
= cv
;
2212 /* Not an option or variable definition; it must be a goal
2213 target! Enter it as a file and add it to the dep chain of
2215 struct file
*f
= enter_command_line_file (arg
);
2220 goals
= (struct dep
*) xmalloc (sizeof (struct dep
));
2225 lastgoal
->next
= (struct dep
*) xmalloc (sizeof (struct dep
));
2226 lastgoal
= lastgoal
->next
;
2230 lastgoal
->ignore_mtime
= 0;
2233 /* Add this target name to the MAKECMDGOALS variable. */
2237 v
= lookup_variable ("MAKECMDGOALS", 12);
2242 /* Paste the old and new values together */
2243 unsigned int oldlen
, newlen
;
2245 oldlen
= strlen (v
->value
);
2246 newlen
= strlen (f
->name
);
2247 value
= (char *) alloca (oldlen
+ 1 + newlen
+ 1);
2248 bcopy (v
->value
, value
, oldlen
);
2249 value
[oldlen
] = ' ';
2250 bcopy (f
->name
, &value
[oldlen
+ 1], newlen
+ 1);
2252 define_variable ("MAKECMDGOALS", 12, value
, o_default
, 0);
2257 /* Print a nice usage method. */
2260 print_usage (int bad
)
2262 const char *const *cpp
;
2265 if (print_version_flag
)
2268 usageto
= bad
? stderr
: stdout
;
2270 fprintf (usageto
, _("Usage: %s [options] [target] ...\n"), program
);
2272 for (cpp
= usage
; *cpp
; ++cpp
)
2273 fputs (_(*cpp
), usageto
);
2275 if (!remote_description
|| *remote_description
== '\0')
2276 fprintf (usageto
, _("\nThis program built for %s\n"), make_host
);
2278 fprintf (usageto
, _("\nThis program built for %s (%s)\n"),
2279 make_host
, remote_description
);
2281 fprintf (usageto
, _("Report bugs to <bug-make@gnu.org>\n"));
2284 /* Decode switches from ARGC and ARGV.
2285 They came from the environment if ENV is nonzero. */
2288 decode_switches (int argc
, char **argv
, int env
)
2291 register const struct command_switch
*cs
;
2292 register struct stringlist
*sl
;
2295 /* getopt does most of the parsing for us.
2296 First, get its vectors set up. */
2300 /* Let getopt produce error messages for the command line,
2301 but not for options from the environment. */
2303 /* Reset getopt's state. */
2306 while (optind
< argc
)
2308 /* Parse the next argument. */
2309 c
= getopt_long (argc
, argv
, options
, long_options
, (int *) 0);
2311 /* End of arguments, or "--" marker seen. */
2314 /* An argument not starting with a dash. */
2315 handle_non_switch_argument (optarg
, env
);
2317 /* Bad option. We will print a usage message and die later.
2318 But continue to parse the other options so the user can
2319 see all he did wrong. */
2322 for (cs
= switches
; cs
->c
!= '\0'; ++cs
)
2325 /* Whether or not we will actually do anything with
2326 this switch. We test this individually inside the
2327 switch below rather than just once outside it, so that
2328 options which are to be ignored still consume args. */
2329 int doit
= !env
|| cs
->env
;
2342 *(int *) cs
->value_ptr
= cs
->type
== flag
;
2350 optarg
= cs
->noarg_value
;
2351 else if (*optarg
== '\0')
2353 error (NILF
, _("the `-%c' option requires a non-empty string argument"),
2358 sl
= *(struct stringlist
**) cs
->value_ptr
;
2361 sl
= (struct stringlist
*)
2362 xmalloc (sizeof (struct stringlist
));
2365 sl
->list
= (char **) xmalloc (5 * sizeof (char *));
2366 *(struct stringlist
**) cs
->value_ptr
= sl
;
2368 else if (sl
->idx
== sl
->max
- 1)
2371 sl
->list
= (char **)
2372 xrealloc ((char *) sl
->list
,
2373 sl
->max
* sizeof (char *));
2375 sl
->list
[sl
->idx
++] = optarg
;
2376 sl
->list
[sl
->idx
] = 0;
2380 /* See if we have an option argument; if we do require that
2381 it's all digits, not something like "10foo". */
2382 if (optarg
== 0 && argc
> optind
)
2385 for (cp
=argv
[optind
]; ISDIGIT (cp
[0]); ++cp
)
2388 optarg
= argv
[optind
++];
2396 int i
= atoi (optarg
);
2399 /* Yes, I realize we're repeating this in some cases. */
2400 for (cp
= optarg
; ISDIGIT (cp
[0]); ++cp
)
2403 if (i
< 1 || cp
[0] != '\0')
2405 error (NILF
, _("the `-%c' option requires a positive integral argument"),
2410 *(unsigned int *) cs
->value_ptr
= i
;
2413 *(unsigned int *) cs
->value_ptr
2414 = *(unsigned int *) cs
->noarg_value
;
2419 if (optarg
== 0 && optind
< argc
2420 && (ISDIGIT (argv
[optind
][0]) || argv
[optind
][0] == '.'))
2421 optarg
= argv
[optind
++];
2424 *(double *) cs
->value_ptr
2425 = (optarg
!= 0 ? atof (optarg
)
2426 : *(double *) cs
->noarg_value
);
2432 /* We've found the switch. Stop looking. */
2437 /* There are no more options according to getting getopt, but there may
2438 be some arguments left. Since we have asked for non-option arguments
2439 to be returned in order, this only happens when there is a "--"
2440 argument to prevent later arguments from being options. */
2441 while (optind
< argc
)
2442 handle_non_switch_argument (argv
[optind
++], env
);
2445 if (!env
&& (bad
|| print_usage_flag
))
2452 /* Decode switches from environment variable ENVAR (which is LEN chars long).
2453 We do this by chopping the value into a vector of words, prepending a
2454 dash to the first word if it lacks one, and passing the vector to
2458 decode_env_switches (char *envar
, unsigned int len
)
2460 char *varref
= (char *) alloca (2 + len
+ 2);
2465 /* Get the variable's value. */
2468 bcopy (envar
, &varref
[2], len
);
2469 varref
[2 + len
] = ')';
2470 varref
[2 + len
+ 1] = '\0';
2471 value
= variable_expand (varref
);
2473 /* Skip whitespace, and check for an empty value. */
2474 value
= next_token (value
);
2475 len
= strlen (value
);
2479 /* Allocate a vector that is definitely big enough. */
2480 argv
= (char **) alloca ((1 + len
+ 1) * sizeof (char *));
2482 /* Allocate a buffer to copy the value into while we split it into words
2483 and unquote it. We must use permanent storage for this because
2484 decode_switches may store pointers into the passed argument words. */
2485 p
= (char *) xmalloc (2 * len
);
2487 /* getopt will look at the arguments starting at ARGV[1].
2488 Prepend a spacer word. */
2492 while (*value
!= '\0')
2494 if (*value
== '\\' && value
[1] != '\0')
2495 ++value
; /* Skip the backslash. */
2496 else if (isblank ((unsigned char)*value
))
2498 /* End of the word. */
2503 while (isblank ((unsigned char)*value
));
2511 if (argv
[1][0] != '-' && strchr (argv
[1], '=') == 0)
2512 /* The first word doesn't start with a dash and isn't a variable
2513 definition. Add a dash and pass it along to decode_switches. We
2514 need permanent storage for this in case decode_switches saves
2515 pointers into the value. */
2516 argv
[1] = concat ("-", argv
[1], "");
2518 /* Parse those words. */
2519 decode_switches (argc
, argv
, 1);
2522 /* Quote the string IN so that it will be interpreted as a single word with
2523 no magic by decode_env_switches; also double dollar signs to avoid
2524 variable expansion in make itself. Write the result into OUT, returning
2525 the address of the next character to be written.
2526 Allocating space for OUT twice the length of IN is always sufficient. */
2529 quote_for_env (char *out
, char *in
)
2535 else if (isblank ((unsigned char)*in
) || *in
== '\\')
2543 /* Define the MAKEFLAGS and MFLAGS variables to reflect the settings of the
2544 command switches. Include options with args if ALL is nonzero.
2545 Don't include options with the `no_makefile' flag set if MAKEFILE. */
2548 define_makeflags (int all
, int makefile
)
2550 static const char ref
[] = "$(MAKEOVERRIDES)";
2551 static const char posixref
[] = "$(-*-command-variables-*-)";
2552 register const struct command_switch
*cs
;
2558 /* We will construct a linked list of `struct flag's describing
2559 all the flags which need to go in MAKEFLAGS. Then, once we
2560 know how many there are and their lengths, we can put them all
2561 together in a string. */
2566 const struct command_switch
*cs
;
2569 struct flag
*flags
= 0;
2570 unsigned int flagslen
= 0;
2571 #define ADD_FLAG(ARG, LEN) \
2573 struct flag *new = (struct flag *) alloca (sizeof (struct flag)); \
2576 new->next = flags; \
2578 if (new->arg == 0) \
2579 ++flagslen; /* Just a single flag letter. */ \
2581 flagslen += 1 + 1 + 1 + 1 + 3 * (LEN); /* " -x foo" */ \
2582 if (!short_option (cs->c)) \
2583 /* This switch has no single-letter version, so we use the long. */ \
2584 flagslen += 2 + strlen (cs->long_name); \
2587 for (cs
= switches
; cs
->c
!= '\0'; ++cs
)
2588 if (cs
->toenv
&& (!makefile
|| !cs
->no_makefile
))
2599 if (!*(int *) cs
->value_ptr
== (cs
->type
== flag_off
)
2600 && (cs
->default_value
== 0
2601 || *(int *) cs
->value_ptr
!= *(int *) cs
->default_value
))
2608 if ((cs
->default_value
!= 0
2609 && (*(unsigned int *) cs
->value_ptr
2610 == *(unsigned int *) cs
->default_value
)))
2612 else if (cs
->noarg_value
!= 0
2613 && (*(unsigned int *) cs
->value_ptr
==
2614 *(unsigned int *) cs
->noarg_value
))
2615 ADD_FLAG ("", 0); /* Optional value omitted; see below. */
2616 else if (cs
->c
== 'j')
2617 /* Special case for `-j'. */
2621 char *buf
= (char *) alloca (30);
2622 sprintf (buf
, "%u", *(unsigned int *) cs
->value_ptr
);
2623 ADD_FLAG (buf
, strlen (buf
));
2632 if (cs
->default_value
!= 0
2633 && (*(double *) cs
->value_ptr
2634 == *(double *) cs
->default_value
))
2636 else if (cs
->noarg_value
!= 0
2637 && (*(double *) cs
->value_ptr
2638 == *(double *) cs
->noarg_value
))
2639 ADD_FLAG ("", 0); /* Optional value omitted; see below. */
2642 char *buf
= (char *) alloca (100);
2643 sprintf (buf
, "%g", *(double *) cs
->value_ptr
);
2644 ADD_FLAG (buf
, strlen (buf
));
2653 struct stringlist
*sl
= *(struct stringlist
**) cs
->value_ptr
;
2656 /* Add the elements in reverse order, because
2657 all the flags get reversed below; and the order
2658 matters for some switches (like -I). */
2659 register unsigned int i
= sl
->idx
;
2661 ADD_FLAG (sl
->list
[i
], strlen (sl
->list
[i
]));
2667 flagslen
+= 4 + sizeof posixref
; /* Four more for the possible " -- ". */
2671 /* Construct the value in FLAGSTRING.
2672 We allocate enough space for a preceding dash and trailing null. */
2673 flagstring
= (char *) alloca (1 + flagslen
+ 1);
2674 bzero (flagstring
, 1 + flagslen
+ 1);
2680 /* Add the flag letter or name to the string. */
2681 if (short_option (flags
->cs
->c
))
2682 *p
++ = flags
->cs
->c
;
2691 strcpy (p
, flags
->cs
->long_name
);
2694 if (flags
->arg
!= 0)
2696 /* A flag that takes an optional argument which in this case is
2697 omitted is specified by ARG being "". We must distinguish
2698 because a following flag appended without an intervening " -"
2699 is considered the arg for the first. */
2700 if (flags
->arg
[0] != '\0')
2702 /* Add its argument too. */
2703 *p
++ = !short_option (flags
->cs
->c
) ? '=' : ' ';
2704 p
= quote_for_env (p
, flags
->arg
);
2707 /* Write a following space and dash, for the next flag. */
2711 else if (!short_option (flags
->cs
->c
))
2714 /* Long options must each go in their own word,
2715 so we write the following space and dash. */
2719 flags
= flags
->next
;
2722 /* Define MFLAGS before appending variable definitions. */
2724 if (p
== &flagstring
[1])
2726 flagstring
[0] = '\0';
2727 else if (p
[-1] == '-')
2729 /* Kill the final space and dash. */
2734 /* Terminate the string. */
2737 /* Since MFLAGS is not parsed for flags, there is no reason to
2738 override any makefile redefinition. */
2739 (void) define_variable ("MFLAGS", 6, flagstring
, o_env
, 1);
2741 if (all
&& command_variables
!= 0)
2743 /* Now write a reference to $(MAKEOVERRIDES), which contains all the
2744 command-line variable definitions. */
2746 if (p
== &flagstring
[1])
2747 /* No flags written, so elide the leading dash already written. */
2751 /* Separate the variables from the switches with a "--" arg. */
2754 /* We did not already write a trailing " -". */
2758 /* There is a trailing " -"; fill it out to " -- ". */
2763 /* Copy in the string. */
2766 bcopy (posixref
, p
, sizeof posixref
- 1);
2767 p
+= sizeof posixref
- 1;
2771 bcopy (ref
, p
, sizeof ref
- 1);
2772 p
+= sizeof ref
- 1;
2775 else if (p
== &flagstring
[1])
2780 else if (p
[-1] == '-')
2781 /* Kill the final space and dash. */
2783 /* Terminate the string. */
2786 v
= define_variable ("MAKEFLAGS", 9,
2787 /* If there are switches, omit the leading dash
2788 unless it is a single long option with two
2790 &flagstring
[(flagstring
[0] == '-'
2791 && flagstring
[1] != '-')
2793 /* This used to use o_env, but that lost when a
2794 makefile defined MAKEFLAGS. Makefiles set
2795 MAKEFLAGS to add switches, but we still want
2796 to redefine its value with the full set of
2797 switches. Of course, an override or command
2798 definition will still take precedence. */
2801 /* The first time we are called, set MAKEFLAGS to always be exported.
2802 We should not do this again on the second call, because that is
2803 after reading makefiles which might have done `unexport MAKEFLAGS'. */
2804 v
->export
= v_export
;
2807 /* Print version information. */
2810 print_version (void)
2812 static int printed_version
= 0;
2814 char *precede
= print_data_base_flag
? "# " : "";
2816 if (printed_version
)
2817 /* Do it only once. */
2820 /* Print this untranslated. The coding standards recommend translating the
2821 (C) to the copyright symbol, but this string is going to change every
2822 year, and none of the rest of it should be translated (including the
2823 word "Copyright", so it hardly seems worth it. */
2825 printf ("%sGNU Make %s\n\
2826 %sCopyright (C) 2003 Free Software Foundation, Inc.\n",
2827 precede
, version_string
, precede
);
2829 printf (_("%sThis is free software; see the source for copying conditions.\n\
2830 %sThere is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A\n\
2831 %sPARTICULAR PURPOSE.\n"),
2832 precede
, precede
, precede
);
2834 if (!remote_description
|| *remote_description
== '\0')
2835 printf (_("\n%sThis program built for %s\n"), precede
, make_host
);
2837 printf (_("\n%sThis program built for %s (%s)\n"),
2838 precede
, make_host
, remote_description
);
2840 printed_version
= 1;
2842 /* Flush stdout so the user doesn't have to wait to see the
2843 version information while things are thought about. */
2847 /* Print a bunch of information about this and that. */
2850 print_data_base (void)
2854 when
= time ((time_t *) 0);
2855 printf (_("\n# Make data base, printed on %s"), ctime (&when
));
2857 print_variable_data_base ();
2858 print_dir_data_base ();
2859 print_rule_data_base ();
2860 print_file_data_base ();
2861 print_vpath_data_base ();
2863 when
= time ((time_t *) 0);
2864 printf (_("\n# Finished Make data base on %s\n"), ctime (&when
));
2867 /* Exit with STATUS, cleaning up as necessary. */
2872 static char dying
= 0;
2880 if (print_version_flag
)
2883 /* Wait for children to die. */
2884 for (err
= (status
!= 0); job_slots_used
> 0; err
= 0)
2885 reap_children (1, err
);
2887 /* Let the remote job module clean up its state. */
2890 /* Remove the intermediate files. */
2891 remove_intermediates (0);
2893 if (print_data_base_flag
)
2896 /* Try to move back to the original directory. This is essential on
2897 MS-DOS (where there is really only one process), and on Unix it
2898 puts core files in the original directory instead of the -C
2899 directory. Must wait until after remove_intermediates(), or unlinks
2900 of relative pathnames fail. */
2901 if (directory_before_chdir
!= 0)
2902 chdir (directory_before_chdir
);
2904 log_working_directory (0);
2910 /* Write a message indicating that we've just entered or
2911 left (according to ENTERING) the current directory. */
2914 log_working_directory (int entering
)
2916 static int entered
= 0;
2918 /* Print nothing without the flag. Don't print the entering message
2919 again if we already have. Don't print the leaving message if we
2920 haven't printed the entering message. */
2921 if (! print_directory_flag
|| entering
== entered
)
2926 if (print_data_base_flag
)
2927 fputs ("# ", stdout
);
2929 /* Use entire sentences to give the translators a fighting chance. */
2932 if (starting_directory
== 0)
2934 printf (_("%s: Entering an unknown directory\n"), program
);
2936 printf (_("%s: Leaving an unknown directory\n"), program
);
2939 printf (_("%s: Entering directory `%s'\n"),
2940 program
, starting_directory
);
2942 printf (_("%s: Leaving directory `%s'\n"),
2943 program
, starting_directory
);
2945 if (starting_directory
== 0)
2947 printf (_("%s[%u]: Entering an unknown directory\n"),
2948 program
, makelevel
);
2950 printf (_("%s[%u]: Leaving an unknown directory\n"),
2951 program
, makelevel
);
2954 printf (_("%s[%u]: Entering directory `%s'\n"),
2955 program
, makelevel
, starting_directory
);
2957 printf (_("%s[%u]: Leaving directory `%s'\n"),
2958 program
, makelevel
, starting_directory
);
2960 /* Flush stdout to be sure this comes before any stderr output. */