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, 2005 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 check symlink mtimes. */
198 int check_symlink_flag
= 0;
200 /* Nonzero means print directory before starting and when done (-w). */
202 int print_directory_flag
= 0;
204 /* Nonzero means ignore print_directory_flag and never print the directory.
205 This is necessary because print_directory_flag is set implicitly. */
207 int inhibit_print_directory_flag
= 0;
209 /* Nonzero means print version information. */
211 int print_version_flag
= 0;
213 /* List of makefiles given with -f switches. */
215 static struct stringlist
*makefiles
= 0;
217 /* Number of job slots (commands that can be run at once). */
219 unsigned int job_slots
= 1;
220 unsigned int default_job_slots
= 1;
222 /* Value of job_slots that means no limit. */
224 static unsigned int inf_jobs
= 0;
226 /* File descriptors for the jobs pipe. */
228 static struct stringlist
*jobserver_fds
= 0;
230 int job_fds
[2] = { -1, -1 };
233 /* Maximum load average at which multiple jobs will be run.
234 Negative values mean unlimited, while zero means limit to
235 zero load (which could be useful to start infinite jobs remotely
236 but one at a time locally). */
238 double max_load_average
= -1.0;
239 double default_load_average
= -1.0;
241 int max_load_average
= -1;
242 int default_load_average
= -1;
245 /* List of directories given with -C switches. */
247 static struct stringlist
*directories
= 0;
249 /* List of include directories given with -I switches. */
251 static struct stringlist
*include_directories
= 0;
253 /* List of files given with -o switches. */
255 static struct stringlist
*old_files
= 0;
257 /* List of files given with -W switches. */
259 static struct stringlist
*new_files
= 0;
261 /* If nonzero, we should just print usage and exit. */
263 static int print_usage_flag
= 0;
265 /* If nonzero, we should print a warning message
266 for each reference to an undefined variable. */
268 int warn_undefined_variables_flag
;
270 /* If nonzero, always build all targets, regardless of whether
271 they appear out of date or not. */
273 int always_make_flag
= 0;
275 /* If nonzero, we're in the "try to rebuild makefiles" phase. */
277 int rebuilding_makefiles
= 0;
279 /* Remember the original value of the SHELL variable, from the environment. */
281 struct variable shell_var
;
284 /* The usage output. We write it this way to make life easier for the
285 translators, especially those trying to translate to right-to-left
286 languages like Hebrew. */
288 static const char *const usage
[] =
292 -b, -m Ignored for compatibility.\n"),
294 -B, --always-make Unconditionally make all targets.\n"),
296 -C DIRECTORY, --directory=DIRECTORY\n\
297 Change to DIRECTORY before doing anything.\n"),
299 -d Print lots of debugging information.\n"),
301 --debug[=FLAGS] Print various types of debugging information.\n"),
303 -e, --environment-overrides\n\
304 Environment variables override makefiles.\n"),
306 -f FILE, --file=FILE, --makefile=FILE\n\
307 Read FILE as a makefile.\n"),
309 -h, --help Print this message and exit.\n"),
311 -i, --ignore-errors Ignore errors from commands.\n"),
313 -I DIRECTORY, --include-dir=DIRECTORY\n\
314 Search DIRECTORY for included makefiles.\n"),
316 -j [N], --jobs[=N] Allow N jobs at once; infinite jobs with no arg.\n"),
318 -k, --keep-going Keep going when some targets can't be made.\n"),
320 -l [N], --load-average[=N], --max-load[=N]\n\
321 Don't start multiple jobs unless load is below N.\n"),
323 -L, --check-symlink-times Use the latest mtime between symlinks and target.\n"),
325 -n, --just-print, --dry-run, --recon\n\
326 Don't actually run any commands; just print them.\n"),
328 -o FILE, --old-file=FILE, --assume-old=FILE\n\
329 Consider FILE to be very old and don't remake it.\n"),
331 -p, --print-data-base Print make's internal database.\n"),
333 -q, --question Run no commands; exit status says if up to date.\n"),
335 -r, --no-builtin-rules Disable the built-in implicit rules.\n"),
337 -R, --no-builtin-variables Disable the built-in variable settings.\n"),
339 -s, --silent, --quiet Don't echo commands.\n"),
341 -S, --no-keep-going, --stop\n\
344 -t, --touch Touch targets instead of remaking them.\n"),
346 -v, --version Print the version number of make and exit.\n"),
348 -w, --print-directory Print the current directory.\n"),
350 --no-print-directory Turn off -w, even if it was turned on implicitly.\n"),
352 -W FILE, --what-if=FILE, --new-file=FILE, --assume-new=FILE\n\
353 Consider FILE to be infinitely new.\n"),
355 --warn-undefined-variables Warn when an undefined variable is referenced.\n"),
359 /* The table of command switches. */
361 static const struct command_switch switches
[] =
363 { 'b', ignore
, 0, 0, 0, 0, 0, 0, 0 },
364 { 'B', flag
, (char *) &always_make_flag
, 1, 1, 0, 0, 0, "always-make" },
365 { 'C', string
, (char *) &directories
, 0, 0, 0, 0, 0, "directory" },
366 { 'd', flag
, (char *) &debug_flag
, 1, 1, 0, 0, 0, 0 },
367 { CHAR_MAX
+1, string
, (char *) &db_flags
, 1, 1, 0, "basic", 0, "debug" },
369 { 'D', flag
, (char *) &suspend_flag
, 1, 1, 0, 0, 0, "suspend-for-debug" },
371 { 'e', flag
, (char *) &env_overrides
, 1, 1, 0, 0, 0,
372 "environment-overrides", },
373 { 'f', string
, (char *) &makefiles
, 0, 0, 0, 0, 0, "file" },
374 { 'h', flag
, (char *) &print_usage_flag
, 0, 0, 0, 0, 0, "help" },
375 { 'i', flag
, (char *) &ignore_errors_flag
, 1, 1, 0, 0, 0,
377 { 'I', string
, (char *) &include_directories
, 1, 1, 0, 0, 0,
379 { 'j', positive_int
, (char *) &job_slots
, 1, 1, 0, (char *) &inf_jobs
,
380 (char *) &default_job_slots
, "jobs" },
381 { CHAR_MAX
+2, string
, (char *) &jobserver_fds
, 1, 1, 0, 0, 0,
383 { 'k', flag
, (char *) &keep_going_flag
, 1, 1, 0, 0,
384 (char *) &default_keep_going_flag
, "keep-going" },
386 { 'l', floating
, (char *) &max_load_average
, 1, 1, 0,
387 (char *) &default_load_average
, (char *) &default_load_average
,
390 { 'l', positive_int
, (char *) &max_load_average
, 1, 1, 0,
391 (char *) &default_load_average
, (char *) &default_load_average
,
394 { 'L', flag
, (char *) &check_symlink_flag
, 1, 1, 0, 0, 0,
395 "check-symlink-times" },
396 { 'm', ignore
, 0, 0, 0, 0, 0, 0, 0 },
397 { 'n', flag
, (char *) &just_print_flag
, 1, 1, 1, 0, 0, "just-print" },
398 { 'o', string
, (char *) &old_files
, 0, 0, 0, 0, 0, "old-file" },
399 { 'p', flag
, (char *) &print_data_base_flag
, 1, 1, 0, 0, 0,
401 { 'q', flag
, (char *) &question_flag
, 1, 1, 1, 0, 0, "question" },
402 { 'r', flag
, (char *) &no_builtin_rules_flag
, 1, 1, 0, 0, 0,
403 "no-builtin-rules" },
404 { 'R', flag
, (char *) &no_builtin_variables_flag
, 1, 1, 0, 0, 0,
405 "no-builtin-variables" },
406 { 's', flag
, (char *) &silent_flag
, 1, 1, 0, 0, 0, "silent" },
407 { 'S', flag_off
, (char *) &keep_going_flag
, 1, 1, 0, 0,
408 (char *) &default_keep_going_flag
, "no-keep-going" },
409 { 't', flag
, (char *) &touch_flag
, 1, 1, 1, 0, 0, "touch" },
410 { 'v', flag
, (char *) &print_version_flag
, 1, 1, 0, 0, 0, "version" },
411 { 'w', flag
, (char *) &print_directory_flag
, 1, 1, 0, 0, 0,
413 { CHAR_MAX
+3, flag
, (char *) &inhibit_print_directory_flag
, 1, 1, 0, 0, 0,
414 "no-print-directory" },
415 { 'W', string
, (char *) &new_files
, 0, 0, 0, 0, 0, "what-if" },
416 { CHAR_MAX
+4, flag
, (char *) &warn_undefined_variables_flag
, 1, 1, 0, 0, 0,
417 "warn-undefined-variables" },
421 /* Secondary long names for options. */
423 static struct option long_option_aliases
[] =
425 { "quiet", no_argument
, 0, 's' },
426 { "stop", no_argument
, 0, 'S' },
427 { "new-file", required_argument
, 0, 'W' },
428 { "assume-new", required_argument
, 0, 'W' },
429 { "assume-old", required_argument
, 0, 'o' },
430 { "max-load", optional_argument
, 0, 'l' },
431 { "dry-run", no_argument
, 0, 'n' },
432 { "recon", no_argument
, 0, 'n' },
433 { "makefile", required_argument
, 0, 'f' },
436 /* List of goal targets. */
438 static struct dep
*goals
, *lastgoal
;
440 /* List of variables which were defined on the command line
441 (or, equivalently, in MAKEFLAGS). */
443 struct command_variable
445 struct command_variable
*next
;
446 struct variable
*variable
;
448 static struct command_variable
*command_variables
;
450 /* The name we were invoked with. */
454 /* Our current directory before processing any -C options. */
456 char *directory_before_chdir
;
458 /* Our current directory after processing all -C options. */
460 char *starting_directory
;
462 /* Value of the MAKELEVEL variable at startup (or 0). */
464 unsigned int makelevel
;
466 /* First file defined in the makefile whose name does not
467 start with `.'. This is the default to remake if the
468 command line does not specify. */
470 struct file
*default_goal_file
;
472 /* Pointer to the value of the .DEFAULT_TARGET special
474 char ** default_target_name
;
476 /* Pointer to structure for the file .DEFAULT
477 whose commands are used for any file that has none of its own.
478 This is zero if the makefiles do not define .DEFAULT. */
480 struct file
*default_file
;
482 /* Nonzero if we have seen the magic `.POSIX' target.
483 This turns on pedantic compliance with POSIX.2. */
487 /* Nonzero if we have seen the `.NOTPARALLEL' target.
488 This turns off parallel builds for this invocation of make. */
492 /* Nonzero if some rule detected clock skew; we keep track so (a) we only
493 print one warning about it during the run, and (b) we can print a final
494 warning at the end of the run. */
496 int clock_skew_detected
;
498 /* Mask of signals that are being caught with fatal_error_signal. */
501 sigset_t fatal_signal_set
;
503 # ifdef HAVE_SIGSETMASK
504 int fatal_signal_mask
;
508 #if !defined HAVE_BSD_SIGNAL && !defined bsd_signal
509 # if !defined HAVE_SIGACTION
510 # define bsd_signal signal
512 typedef RETSIGTYPE (*bsd_signal_ret_t
) ();
514 static bsd_signal_ret_t
515 bsd_signal (int sig
, bsd_signal_ret_t func
)
517 struct sigaction act
, oact
;
518 act
.sa_handler
= func
;
519 act
.sa_flags
= SA_RESTART
;
520 sigemptyset (&act
.sa_mask
);
521 sigaddset (&act
.sa_mask
, sig
);
522 if (sigaction (sig
, &act
, &oact
) != 0)
524 return oact
.sa_handler
;
530 initialize_global_hash_tables (void)
532 init_hash_global_variable_set ();
534 hash_init_directories ();
535 hash_init_function_table ();
539 enter_command_line_file (char *name
)
542 fatal (NILF
, _("empty string invalid as file name"));
546 char *expanded
= tilde_expand (name
);
548 name
= expanded
; /* Memory leak; I don't care. */
551 /* This is also done in parse_file_seq, so this is redundant
552 for names read from makefiles. It is here for names passed
553 on the command line. */
554 while (name
[0] == '.' && name
[1] == '/' && name
[2] != '\0')
558 /* Skip following slashes: ".//foo" is "foo", not "/foo". */
564 /* It was all slashes! Move back to the dot and truncate
565 it after the first slash, so it becomes just "./". */
568 while (name
[0] != '.');
572 return enter_file (xstrdup (name
));
575 /* Toggle -d on receipt of SIGUSR1. */
579 debug_signal_handler (int sig UNUSED
)
581 db_level
= db_level
? DB_NONE
: DB_BASIC
;
586 decode_debug_flags (void)
596 for (pp
=db_flags
->list
; *pp
; ++pp
)
602 switch (tolower (p
[0]))
608 db_level
|= DB_BASIC
;
611 db_level
|= DB_BASIC
| DB_IMPLICIT
;
617 db_level
|= DB_BASIC
| DB_MAKEFILES
;
620 db_level
|= DB_BASIC
| DB_VERBOSE
;
623 fatal (NILF
, _("unknown debug level specification `%s'"), p
);
626 while (*(++p
) != '\0')
627 if (*p
== ',' || *p
== ' ')
640 * HANDLE runtime exceptions by avoiding a requestor on the GUI. Capture
641 * exception and print it to stderr instead.
643 * If ! DB_VERBOSE, just print a simple message and exit.
644 * If DB_VERBOSE, print a more verbose message.
645 * If compiled for DEBUG, let exception pass through to GUI so that
646 * debuggers can attach.
649 handle_runtime_exceptions( struct _EXCEPTION_POINTERS
*exinfo
)
651 PEXCEPTION_RECORD exrec
= exinfo
->ExceptionRecord
;
652 LPSTR cmdline
= GetCommandLine();
653 LPSTR prg
= strtok(cmdline
, " ");
657 LPTSTR lpszStrings
[1];
660 if (! ISDB (DB_VERBOSE
))
663 _("%s: Interrupt/Exception caught (code = 0x%x, addr = 0x%x)\n"),
664 prg
, exrec
->ExceptionCode
, exrec
->ExceptionAddress
);
665 fprintf(stderr
, errmsg
);
670 _("\nUnhandled exception filter called from program %s\nExceptionCode = %x\nExceptionFlags = %x\nExceptionAddress = %x\n"),
671 prg
, exrec
->ExceptionCode
, exrec
->ExceptionFlags
,
672 exrec
->ExceptionAddress
);
674 if (exrec
->ExceptionCode
== EXCEPTION_ACCESS_VIOLATION
675 && exrec
->NumberParameters
>= 2)
676 sprintf(&errmsg
[strlen(errmsg
)],
677 (exrec
->ExceptionInformation
[0]
678 ? _("Access violation: write operation at address %x\n")
679 : _("Access violation: read operation at address %x\n")),
680 exrec
->ExceptionInformation
[1]);
682 /* turn this on if we want to put stuff in the event log too */
684 hEventSource
= RegisterEventSource(NULL
, "GNU Make");
685 lpszStrings
[0] = errmsg
;
687 if (hEventSource
!= NULL
)
689 ReportEvent(hEventSource
, /* handle of event source */
690 EVENTLOG_ERROR_TYPE
, /* event type */
691 0, /* event category */
693 NULL
, /* current user's SID */
694 1, /* strings in lpszStrings */
695 0, /* no bytes of raw data */
696 lpszStrings
, /* array of error strings */
697 NULL
); /* no raw data */
699 (VOID
) DeregisterEventSource(hEventSource
);
703 /* Write the error to stderr too */
704 fprintf(stderr
, errmsg
);
707 return EXCEPTION_CONTINUE_SEARCH
;
710 return (255); /* not reached */
715 * On WIN32 systems we don't have the luxury of a /bin directory that
716 * is mapped globally to every drive mounted to the system. Since make could
717 * be invoked from any drive, and we don't want to propogate /bin/sh
718 * to every single drive. Allow ourselves a chance to search for
719 * a value for default shell here (if the default path does not exist).
723 find_and_set_default_shell (char *token
)
729 extern char *default_shell
;
732 search_token
= default_shell
;
734 search_token
= token
;
737 /* If the user explicitly requests the DOS cmd shell, obey that request.
738 However, make sure that's what they really want by requiring the value
739 of SHELL either equal, or have a final path element of, "cmd" or
740 "cmd.exe" case-insensitive. */
741 tokend
= search_token
+ strlen (search_token
) - 3;
742 if (((tokend
== search_token
743 || (tokend
> search_token
744 && (tokend
[-1] == '/' || tokend
[-1] == '\\')))
745 && !strcmpi (tokend
, "cmd"))
746 || ((tokend
- 4 == search_token
747 || (tokend
- 4 > search_token
748 && (tokend
[-5] == '/' || tokend
[-5] == '\\')))
749 && !strcmpi (tokend
- 4, "cmd.exe"))) {
750 batch_mode_shell
= 1;
753 } else if (!no_default_sh_exe
&&
754 (token
== NULL
|| !strcmp (search_token
, default_shell
))) {
755 /* no new information, path already set or known */
757 } else if (file_exists_p(search_token
)) {
758 /* search token path was found */
759 sprintf(sh_path
, "%s", search_token
);
760 default_shell
= xstrdup(w32ify(sh_path
,0));
762 (_("find_and_set_shell setting default_shell = %s\n"), default_shell
));
766 struct variable
*v
= lookup_variable ("PATH", 4);
768 /* Search Path for shell */
773 ep
= strchr(p
, PATH_SEPARATOR_CHAR
);
778 if (dir_file_exists_p(p
, search_token
)) {
779 sprintf(sh_path
, "%s/%s", p
, search_token
);
780 default_shell
= xstrdup(w32ify(sh_path
,0));
782 *ep
= PATH_SEPARATOR_CHAR
;
787 *ep
= PATH_SEPARATOR_CHAR
;
791 ep
= strchr(p
, PATH_SEPARATOR_CHAR
);
794 /* be sure to check last element of Path */
795 if (p
&& *p
&& dir_file_exists_p(p
, search_token
)) {
796 sprintf(sh_path
, "%s/%s", p
, search_token
);
797 default_shell
= xstrdup(w32ify(sh_path
,0));
803 (_("find_and_set_shell path search set default_shell = %s\n"),
809 if (!unixy_shell
&& sh_found
&&
810 (strstr(default_shell
, "sh") || strstr(default_shell
, "SH"))) {
812 batch_mode_shell
= 0;
815 #ifdef BATCH_MODE_ONLY_SHELL
816 batch_mode_shell
= 1;
821 #endif /* WINDOWS32 */
826 msdos_return_to_initial_directory (void)
828 if (directory_before_chdir
)
829 chdir (directory_before_chdir
);
833 extern char *mktemp
PARAMS ((char *template));
834 extern int mkstemp
PARAMS ((char *template));
837 open_tmpfile(char **name
, const char *template)
841 #if defined HAVE_MKSTEMP || defined HAVE_MKTEMP
842 # define TEMPLATE_LEN strlen (template)
844 # define TEMPLATE_LEN L_tmpnam
846 *name
= xmalloc (TEMPLATE_LEN
+ 1);
847 strcpy (*name
, template);
849 #if defined HAVE_MKSTEMP && defined HAVE_FDOPEN
850 /* It's safest to use mkstemp(), if we can. */
851 fd
= mkstemp (*name
);
854 return fdopen (fd
, "w");
857 (void) mktemp (*name
);
859 (void) tmpnam (*name
);
863 /* Can't use mkstemp(), but guard against a race condition. */
864 fd
= open (*name
, O_CREAT
|O_EXCL
|O_WRONLY
, 0600);
867 return fdopen (fd
, "w");
869 /* Not secure, but what can we do? */
870 return fopen (*name
, "w");
878 main (int argc
, char **argv
)
881 main (int argc
, char **argv
, char **envp
)
884 static char *stdin_nm
= 0;
887 int makefile_status
= MAKE_SUCCESS
;
889 struct dep
*read_makefiles
;
890 PATH_VAR (current_directory
);
892 char *unix_path
= NULL
;
893 char *windows32_path
= NULL
;
895 SetUnhandledExceptionFilter(handle_runtime_exceptions
);
897 /* start off assuming we have no shell */
899 no_default_sh_exe
= 1;
902 #ifdef SET_STACK_SIZE
903 /* Get rid of any avoidable limit on stack size. */
907 /* Set the stack limit huge so that alloca does not fail. */
908 if (getrlimit (RLIMIT_STACK
, &rlim
) == 0)
910 rlim
.rlim_cur
= rlim
.rlim_max
;
911 setrlimit (RLIMIT_STACK
, &rlim
);
916 /* Needed for OS/2 */
917 initialize_main(&argc
, &argv
);
919 default_goal_file
= 0;
922 #if defined (__MSDOS__) && !defined (_POSIX_SOURCE)
923 /* Request the most powerful version of `system', to
924 make up for the dumb default shell. */
925 __system_flags
= (__system_redirect
927 | __system_allow_multiple_cmds
928 | __system_allow_long_cmds
929 | __system_handle_null_commands
930 | __system_emulate_chdir
);
934 /* Set up gettext/internationalization support. */
935 setlocale (LC_ALL
, "");
936 bindtextdomain (PACKAGE
, LOCALEDIR
);
937 textdomain (PACKAGE
);
940 sigemptyset (&fatal_signal_set
);
941 #define ADD_SIG(sig) sigaddset (&fatal_signal_set, sig)
943 #ifdef HAVE_SIGSETMASK
944 fatal_signal_mask
= 0;
945 #define ADD_SIG(sig) fatal_signal_mask |= sigmask (sig)
951 #define FATAL_SIG(sig) \
952 if (bsd_signal (sig, fatal_error_signal) == SIG_IGN) \
953 bsd_signal (sig, SIG_IGN); \
967 /* Windows 9X delivers FP exceptions in child programs to their
968 parent! We don't want Make to die when a child divides by zero,
969 so we work around that lossage by catching SIGFPE. */
974 FATAL_SIG (SIGDANGER
);
985 /* Do not ignore the child-death signal. This must be done before
986 any children could possibly be created; otherwise, the wait
987 functions won't work on systems with the SVR4 ECHILD brain
988 damage, if our invoker is ignoring this signal. */
990 #ifdef HAVE_WAIT_NOHANG
992 (void) bsd_signal (SIGCHLD
, SIG_DFL
);
994 # if defined SIGCLD && SIGCLD != SIGCHLD
995 (void) bsd_signal (SIGCLD
, SIG_DFL
);
999 /* Make sure stdout is line-buffered. */
1002 # ifdef SETVBUF_REVERSED
1003 setvbuf (stdout
, _IOLBF
, xmalloc (BUFSIZ
), BUFSIZ
);
1004 # else /* setvbuf not reversed. */
1005 /* Some buggy systems lose if we pass 0 instead of allocating ourselves. */
1006 setvbuf (stdout
, (char *) 0, _IOLBF
, BUFSIZ
);
1007 # endif /* setvbuf reversed. */
1008 #elif HAVE_SETLINEBUF
1009 setlinebuf (stdout
);
1010 #endif /* setlinebuf missing. */
1012 /* Figure out where this program lives. */
1016 if (argv
[0][0] == '\0')
1021 program
= strrchr (argv
[0], ']');
1023 program
= strrchr (argv
[0], '/');
1025 #if defined(__MSDOS__) || defined(__EMX__)
1027 program
= strrchr (argv
[0], '\\');
1030 /* Some weird environments might pass us argv[0] with
1031 both kinds of slashes; we must find the rightmost. */
1032 char *p
= strrchr (argv
[0], '\\');
1033 if (p
&& p
> program
)
1036 if (program
== 0 && argv
[0][1] == ':')
1037 program
= argv
[0] + 1;
1042 /* Extract program from full path */
1044 char *p
= strrchr (argv
[0], '\\');
1047 argv0_len
= strlen(p
);
1049 && streq (&p
[argv0_len
- 4], ".exe"))
1051 /* Remove .exe extension */
1052 p
[argv0_len
- 4] = '\0';
1053 /* Increment past the initial '\' */
1064 /* Set up to access user data (files). */
1067 initialize_global_hash_tables ();
1069 /* Figure out where we are. */
1072 if (getcwd_fs (current_directory
, GET_PATH_MAX
) == 0)
1074 if (getcwd (current_directory
, GET_PATH_MAX
) == 0)
1078 perror_with_name ("getcwd: ", "");
1080 error (NILF
, "getwd: %s", current_directory
);
1082 current_directory
[0] = '\0';
1083 directory_before_chdir
= 0;
1086 directory_before_chdir
= xstrdup (current_directory
);
1088 /* Make sure we will return to the initial directory, come what may. */
1089 atexit (msdos_return_to_initial_directory
);
1092 /* Initialize the special variables. */
1093 define_variable (".VARIABLES", 10, "", o_default
, 0)->special
= 1;
1094 /* define_variable (".TARGETS", 8, "", o_default, 0)->special = 1; */
1096 /* Set up .FEATURES */
1097 define_variable (".FEATURES", 9,
1098 "target-specific order-only second-expansion",
1100 #ifdef MAKE_JOBSERVER
1101 do_variable_definition (NILF
, ".FEATURES", "jobserver",
1102 o_default
, f_append
, 0);
1104 #ifdef MAKE_SYMLINKS
1105 do_variable_definition (NILF
, ".FEATURES", "check-symlink",
1106 o_default
, f_append
, 0);
1109 /* Read in variables from the environment. It is important that this be
1110 done before $(MAKE) is figured out so its definitions will not be
1111 from the environment. */
1114 for (i
= 0; envp
[i
] != 0; ++i
)
1116 int do_not_define
= 0;
1122 if (!unix_path
&& strneq(envp
[i
], "PATH=", 5))
1124 else if (!strnicmp(envp
[i
], "Path=", 5)) {
1125 do_not_define
= 1; /* it gets defined after loop exits */
1126 if (!windows32_path
)
1127 windows32_path
= ep
+1;
1130 /* The result of pointer arithmetic is cast to unsigned int for
1131 machines where ptrdiff_t is a different size that doesn't widen
1137 v
= define_variable (envp
[i
], (unsigned int) (ep
- envp
[i
]),
1139 /* Force exportation of every variable culled from the environment.
1140 We used to rely on target_environment's v_default code to do this.
1141 But that does not work for the case where an environment variable
1142 is redefined in a makefile with `override'; it should then still
1143 be exported, because it was originally in the environment. */
1144 v
->export
= v_export
;
1146 /* Another wrinkle is that POSIX says the value of SHELL set in the
1147 makefile should not change the value of SHELL given to
1148 subprocesses, which seems silly to me but... */
1149 if (strncmp (envp
[i
], "SHELL=", 6) == 0)
1152 v
->export
= v_noexport
;
1154 shell_var
.name
= "SHELL";
1155 shell_var
.value
= xstrdup (ep
+ 1);
1160 /* If we didn't find a correctly spelled PATH we define PATH as
1161 * either the first mispelled value or an empty string
1164 define_variable("PATH", 4,
1165 windows32_path
? windows32_path
: "",
1166 o_env
, 1)->export
= v_export
;
1168 #else /* For Amiga, read the ENV: device, ignoring all dirs */
1170 BPTR env
, file
, old
;
1173 __aligned
struct FileInfoBlock fib
;
1175 env
= Lock ("ENV:", ACCESS_READ
);
1178 old
= CurrentDir (DupLock(env
));
1179 Examine (env
, &fib
);
1181 while (ExNext (env
, &fib
))
1183 if (fib
.fib_DirEntryType
< 0) /* File */
1185 /* Define an empty variable. It will be filled in
1186 variable_lookup(). Makes startup quite a bit
1188 define_variable (fib
.fib_FileName
,
1189 strlen (fib
.fib_FileName
),
1190 "", o_env
, 1)->export
= v_export
;
1194 UnLock(CurrentDir(old
));
1199 /* Decode the switches. */
1201 decode_env_switches ("MAKEFLAGS", 9);
1203 /* People write things like:
1204 MFLAGS="CC=gcc -pipe" "CFLAGS=-g"
1205 and we set the -p, -i and -e switches. Doesn't seem quite right. */
1206 decode_env_switches ("MFLAGS", 6);
1208 decode_switches (argc
, argv
, 0);
1211 fprintf(stderr
, "%s (pid = %d)\n", argv
[0], GetCurrentProcessId());
1212 fprintf(stderr
, _("%s is suspending for 30 seconds..."), argv
[0]);
1214 fprintf(stderr
, _("done sleep(30). Continuing.\n"));
1218 decode_debug_flags ();
1220 /* Print version information. */
1222 if (print_version_flag
|| print_data_base_flag
|| db_level
)
1225 /* `make --version' is supposed to just print the version and exit. */
1226 if (print_version_flag
)
1230 /* Set the "MAKE_COMMAND" variable to the name we were invoked with.
1231 (If it is a relative pathname with a slash, prepend our directory name
1232 so the result will run the same program regardless of the current dir.
1233 If it is a name with no slash, we can only hope that PATH did not
1234 find it in the current directory.) */
1237 * Convert from backslashes to forward slashes for
1238 * programs like sh which don't like them. Shouldn't
1239 * matter if the path is one way or the other for
1242 if (strpbrk(argv
[0], "/:\\") ||
1243 strstr(argv
[0], "..") ||
1244 strneq(argv
[0], "//", 2))
1245 argv
[0] = xstrdup(w32ify(argv
[0],1));
1246 #else /* WINDOWS32 */
1247 #if defined (__MSDOS__) || defined (__EMX__)
1248 if (strchr (argv
[0], '\\'))
1252 argv
[0] = xstrdup (argv
[0]);
1253 for (p
= argv
[0]; *p
; p
++)
1257 /* If argv[0] is not in absolute form, prepend the current
1258 directory. This can happen when Make is invoked by another DJGPP
1259 program that uses a non-absolute name. */
1260 if (current_directory
[0] != '\0'
1262 && (argv
[0][0] != '/' && (argv
[0][0] == '\0' || argv
[0][1] != ':'))
1264 /* do not prepend cwd if argv[0] contains no '/', e.g. "make" */
1265 && (strchr (argv
[0], '/') != 0 || strchr (argv
[0], '\\') != 0)
1268 argv
[0] = concat (current_directory
, "/", argv
[0]);
1269 #else /* !__MSDOS__ */
1270 if (current_directory
[0] != '\0'
1271 && argv
[0] != 0 && argv
[0][0] != '/' && strchr (argv
[0], '/') != 0)
1272 argv
[0] = concat (current_directory
, "/", argv
[0]);
1273 #endif /* !__MSDOS__ */
1274 #endif /* WINDOWS32 */
1277 /* The extra indirection through $(MAKE_COMMAND) is done
1278 for hysterical raisins. */
1279 (void) define_variable ("MAKE_COMMAND", 12, argv
[0], o_default
, 0);
1280 (void) define_variable ("MAKE", 4, "$(MAKE_COMMAND)", o_default
, 1);
1282 if (command_variables
!= 0)
1284 struct command_variable
*cv
;
1286 unsigned int len
= 0;
1289 /* Figure out how much space will be taken up by the command-line
1290 variable definitions. */
1291 for (cv
= command_variables
; cv
!= 0; cv
= cv
->next
)
1294 len
+= 2 * strlen (v
->name
);
1298 len
+= 2 * strlen (v
->value
);
1302 /* Now allocate a buffer big enough and fill it. */
1303 p
= value
= (char *) alloca (len
);
1304 for (cv
= command_variables
; cv
!= 0; cv
= cv
->next
)
1307 p
= quote_for_env (p
, v
->name
);
1311 p
= quote_for_env (p
, v
->value
);
1314 p
[-1] = '\0'; /* Kill the final space and terminate. */
1316 /* Define an unchangeable variable with a name that no POSIX.2
1317 makefile could validly use for its own variable. */
1318 (void) define_variable ("-*-command-variables-*-", 23,
1319 value
, o_automatic
, 0);
1321 /* Define the variable; this will not override any user definition.
1322 Normally a reference to this variable is written into the value of
1323 MAKEFLAGS, allowing the user to override this value to affect the
1324 exported value of MAKEFLAGS. In POSIX-pedantic mode, we cannot
1325 allow the user's setting of MAKEOVERRIDES to affect MAKEFLAGS, so
1326 a reference to this hidden variable is written instead. */
1327 (void) define_variable ("MAKEOVERRIDES", 13,
1328 "${-*-command-variables-*-}", o_env
, 1);
1331 /* If there were -C flags, move ourselves about. */
1332 if (directories
!= 0)
1333 for (i
= 0; directories
->list
[i
] != 0; ++i
)
1335 char *dir
= directories
->list
[i
];
1339 expanded
= tilde_expand (dir
);
1344 /* WINDOWS32 chdir() doesn't work if the directory has a trailing '/'
1345 But allow -C/ just in case someone wants that. */
1347 char *p
= dir
+ strlen (dir
) - 1;
1348 while (p
> dir
&& (p
[0] == '/' || p
[0] == '\\'))
1353 if (chdir (dir
) < 0)
1354 pfatal_with_name (dir
);
1361 * THIS BLOCK OF CODE MUST COME AFTER chdir() CALL ABOVE IN ORDER
1362 * TO NOT CONFUSE THE DEPENDENCY CHECKING CODE IN implicit.c.
1364 * The functions in dir.c can incorrectly cache information for "."
1365 * before we have changed directory and this can cause file
1366 * lookups to fail because the current directory (.) was pointing
1367 * at the wrong place when it was first evaluated.
1369 no_default_sh_exe
= !find_and_set_default_shell(NULL
);
1371 #endif /* WINDOWS32 */
1372 /* Figure out the level of recursion. */
1374 struct variable
*v
= lookup_variable (MAKELEVEL_NAME
, MAKELEVEL_LENGTH
);
1375 if (v
!= 0 && v
->value
[0] != '\0' && v
->value
[0] != '-')
1376 makelevel
= (unsigned int) atoi (v
->value
);
1381 /* Except under -s, always do -w in sub-makes and under -C. */
1382 if (!silent_flag
&& (directories
!= 0 || makelevel
> 0))
1383 print_directory_flag
= 1;
1385 /* Let the user disable that with --no-print-directory. */
1386 if (inhibit_print_directory_flag
)
1387 print_directory_flag
= 0;
1389 /* If -R was given, set -r too (doesn't make sense otherwise!) */
1390 if (no_builtin_variables_flag
)
1391 no_builtin_rules_flag
= 1;
1393 /* Construct the list of include directories to search. */
1395 construct_include_path (include_directories
== 0 ? (char **) 0
1396 : include_directories
->list
);
1398 /* Figure out where we are now, after chdir'ing. */
1399 if (directories
== 0)
1400 /* We didn't move, so we're still in the same place. */
1401 starting_directory
= current_directory
;
1405 if (getcwd_fs (current_directory
, GET_PATH_MAX
) == 0)
1407 if (getcwd (current_directory
, GET_PATH_MAX
) == 0)
1411 perror_with_name ("getcwd: ", "");
1413 error (NILF
, "getwd: %s", current_directory
);
1415 starting_directory
= 0;
1418 starting_directory
= current_directory
;
1421 (void) define_variable ("CURDIR", 6, current_directory
, o_default
, 0);
1423 /* Read any stdin makefiles into temporary files. */
1427 register unsigned int i
;
1428 for (i
= 0; i
< makefiles
->idx
; ++i
)
1429 if (makefiles
->list
[i
][0] == '-' && makefiles
->list
[i
][1] == '\0')
1431 /* This makefile is standard input. Since we may re-exec
1432 and thus re-read the makefiles, we read standard input
1433 into a temporary file and read from that. */
1435 char *template, *tmpdir
;
1438 fatal (NILF
, _("Makefile from standard input specified twice."));
1441 # define DEFAULT_TMPDIR "sys$scratch:"
1444 # define DEFAULT_TMPDIR P_tmpdir
1446 # define DEFAULT_TMPDIR "/tmp"
1449 #define DEFAULT_TMPFILE "GmXXXXXX"
1451 if (((tmpdir
= getenv ("TMPDIR")) == NULL
|| *tmpdir
== '\0')
1452 #if defined (__MSDOS__) || defined (WINDOWS32) || defined (__EMX__)
1453 /* These are also used commonly on these platforms. */
1454 && ((tmpdir
= getenv ("TEMP")) == NULL
|| *tmpdir
== '\0')
1455 && ((tmpdir
= getenv ("TMP")) == NULL
|| *tmpdir
== '\0')
1458 tmpdir
= DEFAULT_TMPDIR
;
1460 template = (char *) alloca (strlen (tmpdir
)
1461 + sizeof (DEFAULT_TMPFILE
) + 1);
1462 strcpy (template, tmpdir
);
1464 #ifdef HAVE_DOS_PATHS
1465 if (strchr ("/\\", template[strlen (template) - 1]) == NULL
)
1466 strcat (template, "/");
1469 if (template[strlen (template) - 1] != '/')
1470 strcat (template, "/");
1472 #endif /* !HAVE_DOS_PATHS */
1474 strcat (template, DEFAULT_TMPFILE
);
1475 outfile
= open_tmpfile (&stdin_nm
, template);
1477 pfatal_with_name (_("fopen (temporary file)"));
1478 while (!feof (stdin
) && ! ferror (stdin
))
1481 unsigned int n
= fread (buf
, 1, sizeof (buf
), stdin
);
1482 if (n
> 0 && fwrite (buf
, 1, n
, outfile
) != n
)
1483 pfatal_with_name (_("fwrite (temporary file)"));
1485 (void) fclose (outfile
);
1487 /* Replace the name that read_all_makefiles will
1488 see with the name of the temporary file. */
1489 makefiles
->list
[i
] = xstrdup (stdin_nm
);
1491 /* Make sure the temporary file will not be remade. */
1492 f
= enter_file (stdin_nm
);
1494 f
->update_status
= 0;
1495 f
->command_state
= cs_finished
;
1496 /* Can't be intermediate, or it'll be removed too early for
1498 f
->intermediate
= 0;
1503 #ifndef __EMX__ /* Don't use a SIGCHLD handler for OS/2 */
1504 #if defined(MAKE_JOBSERVER) || !defined(HAVE_WAIT_NOHANG)
1505 /* Set up to handle children dying. This must be done before
1506 reading in the makefiles so that `shell' function calls will work.
1508 If we don't have a hanging wait we have to fall back to old, broken
1509 functionality here and rely on the signal handler and counting
1512 If we're using the jobs pipe we need a signal handler so that
1513 SIGCHLD is not ignored; we need it to interrupt the read(2) of the
1514 jobserver pipe in job.c if we're waiting for a token.
1516 If none of these are true, we don't need a signal handler at all. */
1518 extern RETSIGTYPE child_handler
PARAMS ((int sig
));
1519 # if defined SIGCHLD
1520 bsd_signal (SIGCHLD
, child_handler
);
1522 # if defined SIGCLD && SIGCLD != SIGCHLD
1523 bsd_signal (SIGCLD
, child_handler
);
1529 /* Let the user send us SIGUSR1 to toggle the -d flag during the run. */
1531 bsd_signal (SIGUSR1
, debug_signal_handler
);
1534 /* Define the initial list of suffixes for old-style rules. */
1536 set_default_suffixes ();
1538 /* Define the file rules for the built-in suffix rules. These will later
1539 be converted into pattern rules. We used to do this in
1540 install_default_implicit_rules, but since that happens after reading
1541 makefiles, it results in the built-in pattern rules taking precedence
1542 over makefile-specified suffix rules, which is wrong. */
1544 install_default_suffix_rules ();
1546 /* Define some internal and special variables. */
1548 define_automatic_variables ();
1550 /* Set up the MAKEFLAGS and MFLAGS variables
1551 so makefiles can look at them. */
1553 define_makeflags (0, 0);
1555 /* Define the default variables. */
1556 define_default_variables ();
1558 default_file
= enter_file (".DEFAULT");
1561 struct variable
*v
= define_variable (
1562 ".DEFAULT_TARGET", 15, "", o_file
, 0);
1564 default_target_name
= &v
->value
;
1567 /* Read all the makefiles. */
1570 = read_all_makefiles (makefiles
== 0 ? (char **) 0 : makefiles
->list
);
1573 /* look one last time after reading all Makefiles */
1574 if (no_default_sh_exe
)
1575 no_default_sh_exe
= !find_and_set_default_shell(NULL
);
1577 if (no_default_sh_exe
&& job_slots
!= 1) {
1578 error (NILF
, _("Do not specify -j or --jobs if sh.exe is not available."));
1579 error (NILF
, _("Resetting make for single job mode."));
1582 #endif /* WINDOWS32 */
1584 #if defined (__MSDOS__) || defined (__EMX__)
1585 /* We need to know what kind of shell we will be using. */
1587 extern int _is_unixy_shell (const char *_path
);
1588 struct variable
*shv
= lookup_variable ("SHELL", 5);
1589 extern int unixy_shell
;
1590 extern char *default_shell
;
1592 if (shv
&& *shv
->value
)
1594 char *shell_path
= recursively_expand(shv
);
1596 if (shell_path
&& _is_unixy_shell (shell_path
))
1601 default_shell
= shell_path
;
1604 #endif /* __MSDOS__ || __EMX__ */
1606 /* Decode switches again, in case the variables were set by the makefile. */
1607 decode_env_switches ("MAKEFLAGS", 9);
1609 decode_env_switches ("MFLAGS", 6);
1612 #if defined (__MSDOS__) || defined (__EMX__)
1615 && _osmode
!= OS2_MODE
/* turn off -j if we are in DOS mode */
1620 _("Parallel jobs (-j) are not supported on this platform."));
1621 error (NILF
, _("Resetting to single job (-j1) mode."));
1626 #ifdef MAKE_JOBSERVER
1627 /* If the jobserver-fds option is seen, make sure that -j is reasonable. */
1634 for (ui
=1; ui
< jobserver_fds
->idx
; ++ui
)
1635 if (!streq (jobserver_fds
->list
[0], jobserver_fds
->list
[ui
]))
1636 fatal (NILF
, _("internal error: multiple --jobserver-fds options"));
1638 /* Now parse the fds string and make sure it has the proper format. */
1640 cp
= jobserver_fds
->list
[0];
1642 if (sscanf (cp
, "%d,%d", &job_fds
[0], &job_fds
[1]) != 2)
1644 _("internal error: invalid --jobserver-fds string `%s'"), cp
);
1646 /* The combination of a pipe + !job_slots means we're using the
1647 jobserver. If !job_slots and we don't have a pipe, we can start
1648 infinite jobs. If we see both a pipe and job_slots >0 that means the
1649 user set -j explicitly. This is broken; in this case obey the user
1650 (ignore the jobserver pipe for this make) but print a message. */
1654 _("warning: -jN forced in submake: disabling jobserver mode."));
1656 /* Create a duplicate pipe, that will be closed in the SIGCHLD
1657 handler. If this fails with EBADF, the parent has closed the pipe
1658 on us because it didn't think we were a submake. If so, print a
1659 warning then default to -j1. */
1661 else if ((job_rfd
= dup (job_fds
[0])) < 0)
1664 pfatal_with_name (_("dup jobserver"));
1667 _("warning: jobserver unavailable: using -j1. Add `+' to parent make rule."));
1675 job_fds
[0] = job_fds
[1] = -1;
1676 free (jobserver_fds
->list
);
1677 free (jobserver_fds
);
1682 /* If we have >1 slot but no jobserver-fds, then we're a top-level make.
1683 Set up the pipe and install the fds option for our children. */
1689 if (pipe (job_fds
) < 0 || (job_rfd
= dup (job_fds
[0])) < 0)
1690 pfatal_with_name (_("creating jobs pipe"));
1692 /* Every make assumes that it always has one job it can run. For the
1693 submakes it's the token they were given by their parent. For the
1694 top make, we just subtract one from the number the user wants. We
1695 want job_slots to be 0 to indicate we're using the jobserver. */
1701 EINTRLOOP (r
, write (job_fds
[1], &c
, 1));
1703 pfatal_with_name (_("init jobserver pipe"));
1706 /* Fill in the jobserver_fds struct for our children. */
1708 jobserver_fds
= (struct stringlist
*)
1709 xmalloc (sizeof (struct stringlist
));
1710 jobserver_fds
->list
= (char **) xmalloc (sizeof (char *));
1711 jobserver_fds
->list
[0] = xmalloc ((sizeof ("1024")*2)+1);
1713 sprintf (jobserver_fds
->list
[0], "%d,%d", job_fds
[0], job_fds
[1]);
1714 jobserver_fds
->idx
= 1;
1715 jobserver_fds
->max
= 1;
1719 #ifndef MAKE_SYMLINKS
1720 if (check_symlink_flag
)
1722 error (NILF
, _("Symbolic links not supported: disabling -L."));
1723 check_symlink_flag
= 0;
1727 /* Set up MAKEFLAGS and MFLAGS again, so they will be right. */
1729 define_makeflags (1, 0);
1731 /* Make each `struct dep' point at the `struct file' for the file
1732 depended on. Also do magic for special targets. */
1736 /* Convert old-style suffix rules to pattern rules. It is important to
1737 do this before installing the built-in pattern rules below, so that
1738 makefile-specified suffix rules take precedence over built-in pattern
1741 convert_to_pattern ();
1743 /* Install the default implicit pattern rules.
1744 This used to be done before reading the makefiles.
1745 But in that case, built-in pattern rules were in the chain
1746 before user-defined ones, so they matched first. */
1748 install_default_implicit_rules ();
1750 /* Compute implicit rule limits. */
1752 count_implicit_rule_limits ();
1754 /* Construct the listings of directories in VPATH lists. */
1756 build_vpath_lists ();
1758 /* Mark files given with -o flags as very old
1759 and as having been updated already, and files given with -W flags as
1760 brand new (time-stamp as far as possible into the future). */
1763 for (p
= old_files
->list
; *p
!= 0; ++p
)
1765 f
= enter_command_line_file (*p
);
1766 f
->last_mtime
= f
->mtime_before_update
= OLD_MTIME
;
1768 f
->update_status
= 0;
1769 f
->command_state
= cs_finished
;
1774 for (p
= new_files
->list
; *p
!= 0; ++p
)
1776 f
= enter_command_line_file (*p
);
1777 f
->last_mtime
= f
->mtime_before_update
= NEW_MTIME
;
1781 /* Initialize the remote job module. */
1784 if (read_makefiles
!= 0)
1786 /* Update any makefiles if necessary. */
1788 FILE_TIMESTAMP
*makefile_mtimes
= 0;
1789 unsigned int mm_idx
= 0;
1790 char **nargv
= argv
;
1792 int orig_db_level
= db_level
;
1795 if (! ISDB (DB_MAKEFILES
))
1798 DB (DB_BASIC
, (_("Updating makefiles....\n")));
1800 /* Remove any makefiles we don't want to try to update.
1801 Also record the current modtimes so we can compare them later. */
1803 register struct dep
*d
, *last
;
1808 register struct file
*f
= d
->file
;
1809 if (f
->double_colon
)
1810 for (f
= f
->double_colon
; f
!= NULL
; f
= f
->prev
)
1812 if (f
->deps
== 0 && f
->cmds
!= 0)
1814 /* This makefile is a :: target with commands, but
1815 no dependencies. So, it will always be remade.
1816 This might well cause an infinite loop, so don't
1817 try to remake it. (This will only happen if
1818 your makefiles are written exceptionally
1819 stupidly; but if you work for Athena, that's how
1820 you write your makefiles.) */
1823 (_("Makefile `%s' might loop; not remaking it.\n"),
1827 read_makefiles
= d
->next
;
1829 last
->next
= d
->next
;
1831 /* Free the storage. */
1834 d
= last
== 0 ? read_makefiles
: last
->next
;
1839 if (f
== NULL
|| !f
->double_colon
)
1841 makefile_mtimes
= (FILE_TIMESTAMP
*)
1842 xrealloc ((char *) makefile_mtimes
,
1843 (mm_idx
+ 1) * sizeof (FILE_TIMESTAMP
));
1844 makefile_mtimes
[mm_idx
++] = file_mtime_no_search (d
->file
);
1851 /* Set up `MAKEFLAGS' specially while remaking makefiles. */
1852 define_makeflags (1, 1);
1854 rebuilding_makefiles
= 1;
1855 status
= update_goal_chain (read_makefiles
);
1856 rebuilding_makefiles
= 0;
1861 /* The only way this can happen is if the user specified -q and asked
1862 * for one of the makefiles to be remade as a target on the command
1863 * line. Since we're not actually updating anything with -q we can
1864 * treat this as "did nothing".
1872 /* Failed to update. Figure out if we care. */
1874 /* Nonzero if any makefile was successfully remade. */
1876 /* Nonzero if any makefile we care about failed
1877 in updating or could not be found at all. */
1882 for (i
= 0, d
= read_makefiles
; d
!= 0; ++i
, d
= d
->next
)
1884 /* Reset the considered flag; we may need to look at the file
1885 again to print an error. */
1886 d
->file
->considered
= 0;
1888 if (d
->file
->updated
)
1890 /* This makefile was updated. */
1891 if (d
->file
->update_status
== 0)
1893 /* It was successfully updated. */
1894 any_remade
|= (file_mtime_no_search (d
->file
)
1895 != makefile_mtimes
[i
]);
1897 else if (! (d
->changed
& RM_DONTCARE
))
1899 FILE_TIMESTAMP mtime
;
1900 /* The update failed and this makefile was not
1901 from the MAKEFILES variable, so we care. */
1902 error (NILF
, _("Failed to remake makefile `%s'."),
1904 mtime
= file_mtime_no_search (d
->file
);
1905 any_remade
|= (mtime
!= NONEXISTENT_MTIME
1906 && mtime
!= makefile_mtimes
[i
]);
1907 makefile_status
= MAKE_FAILURE
;
1911 /* This makefile was not found at all. */
1912 if (! (d
->changed
& RM_DONTCARE
))
1914 /* This is a makefile we care about. See how much. */
1915 if (d
->changed
& RM_INCLUDED
)
1916 /* An included makefile. We don't need
1917 to die, but we do want to complain. */
1919 _("Included makefile `%s' was not found."),
1923 /* A normal makefile. We must die later. */
1924 error (NILF
, _("Makefile `%s' was not found"),
1930 /* Reset this to empty so we get the right error message below. */
1942 /* Updated successfully. Re-exec ourselves. */
1944 remove_intermediates (0);
1946 if (print_data_base_flag
)
1949 log_working_directory (0);
1953 /* These names might have changed. */
1955 for (i
= 1; i
< argc
; ++i
)
1956 if (strneq (argv
[i
], "-f", 2)) /* XXX */
1958 char *p
= &argv
[i
][2];
1960 argv
[++i
] = makefiles
->list
[j
];
1962 argv
[i
] = concat ("-f", makefiles
->list
[j
], "");
1967 /* Add -o option for the stdin temporary file, if necessary. */
1970 nargv
= (char **) xmalloc ((nargc
+ 2) * sizeof (char *));
1971 bcopy ((char *) argv
, (char *) nargv
, argc
* sizeof (char *));
1972 nargv
[nargc
++] = concat ("-o", stdin_nm
, "");
1976 if (directories
!= 0 && directories
->idx
> 0)
1979 if (directory_before_chdir
!= 0)
1981 if (chdir (directory_before_chdir
) < 0)
1983 perror_with_name ("chdir", "");
1992 fatal (NILF
, _("Couldn't change back to original directory."));
1996 for (p
= environ
; *p
!= 0; ++p
)
1997 if (strneq (*p
, MAKELEVEL_NAME
, MAKELEVEL_LENGTH
)
1998 && (*p
)[MAKELEVEL_LENGTH
] == '=')
2000 /* The SGI compiler apparently can't understand
2001 the concept of storing the result of a function
2002 in something other than a local variable. */
2004 sgi_loses
= (char *) alloca (40);
2006 sprintf (*p
, "%s=%u", MAKELEVEL_NAME
, makelevel
);
2014 len
= GetVar (MAKELEVEL_NAME
, buffer
, sizeof (buffer
), GVF_GLOBAL_ONLY
);
2018 sprintf (buffer
, "%u", makelevel
);
2019 SetVar (MAKELEVEL_NAME
, buffer
, -1, GVF_GLOBAL_ONLY
);
2024 if (ISDB (DB_BASIC
))
2027 fputs (_("Re-executing:"), stdout
);
2028 for (p
= nargv
; *p
!= 0; ++p
)
2036 /* Close the dup'd jobserver pipe if we opened one. */
2041 exec_command (nargv
);
2043 #elif defined (__EMX__)
2045 /* It is not possible to use execve() here because this
2046 would cause the parent process to be terminated with
2047 exit code 0 before the child process has been terminated.
2048 Therefore it may be the best solution simply to spawn the
2049 child process including all file handles and to wait for its
2053 pid
= child_execute_job (0, 1, nargv
, environ
);
2055 /* is this loop really necessary? */
2057 pid
= wait (&status
);
2059 /* use the exit code of the child process */
2060 exit (WIFEXITED(status
) ? WEXITSTATUS(status
) : EXIT_FAILURE
);
2063 exec_command (nargv
, environ
);
2068 #define BOGUS_UPDATE_STATUS 0
2069 assert (BOGUS_UPDATE_STATUS
);
2073 db_level
= orig_db_level
;
2075 /* Free the makefile mtimes (if we allocated any). */
2076 if (makefile_mtimes
)
2077 free ((char *) makefile_mtimes
);
2080 /* Set up `MAKEFLAGS' again for the normal targets. */
2081 define_makeflags (1, 0);
2083 /* If there is a temp file from reading a makefile from stdin, get rid of
2085 if (stdin_nm
&& unlink (stdin_nm
) < 0 && errno
!= ENOENT
)
2086 perror_with_name (_("unlink (temporary file): "), stdin_nm
);
2091 /* If there were no command-line goals, use the default. */
2094 if (**default_target_name
!= '\0')
2096 if (default_goal_file
== 0 ||
2097 strcmp (*default_target_name
, default_goal_file
->name
) != 0)
2099 default_goal_file
= lookup_file (*default_target_name
);
2101 /* In case user set .DEFAULT_TARGET to a non-existent target
2102 name let's just enter this name into the table and let
2103 the standard logic sort it out. */
2104 if (default_goal_file
== 0)
2107 char *p
= *default_target_name
;
2110 parse_file_seq (&p
, '\0', sizeof (struct nameseq
), 1),
2111 sizeof (struct nameseq
));
2113 /* .DEFAULT_TARGET should contain one target. */
2115 fatal (NILF
, _(".DEFAULT_TARGET contains more than one target"));
2117 default_goal_file
= enter_file (ns
->name
);
2119 ns
->name
= 0; /* It was reused by enter_file(). */
2124 goals
= (struct dep
*) xmalloc (sizeof (struct dep
));
2127 goals
->ignore_mtime
= 0;
2128 goals
->file
= default_goal_file
;
2137 if (read_makefiles
== 0)
2138 fatal (NILF
, _("No targets specified and no makefile found"));
2140 fatal (NILF
, _("No targets"));
2143 /* Update the goals. */
2145 DB (DB_BASIC
, (_("Updating goal targets....\n")));
2147 switch (update_goal_chain (goals
))
2150 /* Nothing happened. */
2152 /* Updated successfully. */
2153 status
= makefile_status
;
2156 /* We are under -q and would run some commands. */
2157 status
= MAKE_TROUBLE
;
2160 /* Updating failed. POSIX.2 specifies exit status >1 for this;
2161 but in VMS, there is only success and failure. */
2162 status
= MAKE_FAILURE
;
2168 /* If we detected some clock skew, generate one last warning */
2169 if (clock_skew_detected
)
2171 _("warning: Clock skew detected. Your build may be incomplete."));
2180 /* Parsing of arguments, decoding of switches. */
2182 static char options
[1 + sizeof (switches
) / sizeof (switches
[0]) * 3];
2183 static struct option long_options
[(sizeof (switches
) / sizeof (switches
[0])) +
2184 (sizeof (long_option_aliases
) /
2185 sizeof (long_option_aliases
[0]))];
2187 /* Fill in the string and vector for getopt. */
2189 init_switches (void)
2195 if (options
[0] != '\0')
2201 /* Return switch and non-switch args in order, regardless of
2202 POSIXLY_CORRECT. Non-switch args are returned as option 1. */
2205 for (i
= 0; switches
[i
].c
!= '\0'; ++i
)
2207 long_options
[i
].name
= (switches
[i
].long_name
== 0 ? "" :
2208 switches
[i
].long_name
);
2209 long_options
[i
].flag
= 0;
2210 long_options
[i
].val
= switches
[i
].c
;
2211 if (short_option (switches
[i
].c
))
2212 *p
++ = switches
[i
].c
;
2213 switch (switches
[i
].type
)
2218 long_options
[i
].has_arg
= no_argument
;
2224 if (short_option (switches
[i
].c
))
2226 if (switches
[i
].noarg_value
!= 0)
2228 if (short_option (switches
[i
].c
))
2230 long_options
[i
].has_arg
= optional_argument
;
2233 long_options
[i
].has_arg
= required_argument
;
2238 for (c
= 0; c
< (sizeof (long_option_aliases
) /
2239 sizeof (long_option_aliases
[0]));
2241 long_options
[i
++] = long_option_aliases
[c
];
2242 long_options
[i
].name
= 0;
2246 handle_non_switch_argument (char *arg
, int env
)
2248 /* Non-option argument. It might be a variable definition. */
2250 if (arg
[0] == '-' && arg
[1] == '\0')
2251 /* Ignore plain `-' for compatibility. */
2253 v
= try_variable_definition (0, arg
, o_command
, 0);
2256 /* It is indeed a variable definition. If we don't already have this
2257 one, record a pointer to the variable for later use in
2258 define_makeflags. */
2259 struct command_variable
*cv
;
2261 for (cv
= command_variables
; cv
!= 0; cv
= cv
->next
)
2262 if (cv
->variable
== v
)
2266 cv
= (struct command_variable
*) xmalloc (sizeof (*cv
));
2268 cv
->next
= command_variables
;
2269 command_variables
= cv
;
2274 /* Not an option or variable definition; it must be a goal
2275 target! Enter it as a file and add it to the dep chain of
2277 struct file
*f
= enter_command_line_file (arg
);
2282 goals
= (struct dep
*) xmalloc (sizeof (struct dep
));
2287 lastgoal
->next
= (struct dep
*) xmalloc (sizeof (struct dep
));
2288 lastgoal
= lastgoal
->next
;
2292 lastgoal
->ignore_mtime
= 0;
2295 /* Add this target name to the MAKECMDGOALS variable. */
2299 v
= lookup_variable ("MAKECMDGOALS", 12);
2304 /* Paste the old and new values together */
2305 unsigned int oldlen
, newlen
;
2307 oldlen
= strlen (v
->value
);
2308 newlen
= strlen (f
->name
);
2309 value
= (char *) alloca (oldlen
+ 1 + newlen
+ 1);
2310 bcopy (v
->value
, value
, oldlen
);
2311 value
[oldlen
] = ' ';
2312 bcopy (f
->name
, &value
[oldlen
+ 1], newlen
+ 1);
2314 define_variable ("MAKECMDGOALS", 12, value
, o_default
, 0);
2319 /* Print a nice usage method. */
2322 print_usage (int bad
)
2324 const char *const *cpp
;
2327 if (print_version_flag
)
2330 usageto
= bad
? stderr
: stdout
;
2332 fprintf (usageto
, _("Usage: %s [options] [target] ...\n"), program
);
2334 for (cpp
= usage
; *cpp
; ++cpp
)
2335 fputs (_(*cpp
), usageto
);
2337 if (!remote_description
|| *remote_description
== '\0')
2338 fprintf (usageto
, _("\nThis program built for %s\n"), make_host
);
2340 fprintf (usageto
, _("\nThis program built for %s (%s)\n"),
2341 make_host
, remote_description
);
2343 fprintf (usageto
, _("Report bugs to <bug-make@gnu.org>\n"));
2346 /* Decode switches from ARGC and ARGV.
2347 They came from the environment if ENV is nonzero. */
2350 decode_switches (int argc
, char **argv
, int env
)
2353 register const struct command_switch
*cs
;
2354 register struct stringlist
*sl
;
2357 /* getopt does most of the parsing for us.
2358 First, get its vectors set up. */
2362 /* Let getopt produce error messages for the command line,
2363 but not for options from the environment. */
2365 /* Reset getopt's state. */
2368 while (optind
< argc
)
2370 /* Parse the next argument. */
2371 c
= getopt_long (argc
, argv
, options
, long_options
, (int *) 0);
2373 /* End of arguments, or "--" marker seen. */
2376 /* An argument not starting with a dash. */
2377 handle_non_switch_argument (optarg
, env
);
2379 /* Bad option. We will print a usage message and die later.
2380 But continue to parse the other options so the user can
2381 see all he did wrong. */
2384 for (cs
= switches
; cs
->c
!= '\0'; ++cs
)
2387 /* Whether or not we will actually do anything with
2388 this switch. We test this individually inside the
2389 switch below rather than just once outside it, so that
2390 options which are to be ignored still consume args. */
2391 int doit
= !env
|| cs
->env
;
2404 *(int *) cs
->value_ptr
= cs
->type
== flag
;
2412 optarg
= cs
->noarg_value
;
2413 else if (*optarg
== '\0')
2415 error (NILF
, _("the `-%c' option requires a non-empty string argument"),
2420 sl
= *(struct stringlist
**) cs
->value_ptr
;
2423 sl
= (struct stringlist
*)
2424 xmalloc (sizeof (struct stringlist
));
2427 sl
->list
= (char **) xmalloc (5 * sizeof (char *));
2428 *(struct stringlist
**) cs
->value_ptr
= sl
;
2430 else if (sl
->idx
== sl
->max
- 1)
2433 sl
->list
= (char **)
2434 xrealloc ((char *) sl
->list
,
2435 sl
->max
* sizeof (char *));
2437 sl
->list
[sl
->idx
++] = optarg
;
2438 sl
->list
[sl
->idx
] = 0;
2442 /* See if we have an option argument; if we do require that
2443 it's all digits, not something like "10foo". */
2444 if (optarg
== 0 && argc
> optind
)
2447 for (cp
=argv
[optind
]; ISDIGIT (cp
[0]); ++cp
)
2450 optarg
= argv
[optind
++];
2458 int i
= atoi (optarg
);
2461 /* Yes, I realize we're repeating this in some cases. */
2462 for (cp
= optarg
; ISDIGIT (cp
[0]); ++cp
)
2465 if (i
< 1 || cp
[0] != '\0')
2467 error (NILF
, _("the `-%c' option requires a positive integral argument"),
2472 *(unsigned int *) cs
->value_ptr
= i
;
2475 *(unsigned int *) cs
->value_ptr
2476 = *(unsigned int *) cs
->noarg_value
;
2481 if (optarg
== 0 && optind
< argc
2482 && (ISDIGIT (argv
[optind
][0]) || argv
[optind
][0] == '.'))
2483 optarg
= argv
[optind
++];
2486 *(double *) cs
->value_ptr
2487 = (optarg
!= 0 ? atof (optarg
)
2488 : *(double *) cs
->noarg_value
);
2494 /* We've found the switch. Stop looking. */
2499 /* There are no more options according to getting getopt, but there may
2500 be some arguments left. Since we have asked for non-option arguments
2501 to be returned in order, this only happens when there is a "--"
2502 argument to prevent later arguments from being options. */
2503 while (optind
< argc
)
2504 handle_non_switch_argument (argv
[optind
++], env
);
2507 if (!env
&& (bad
|| print_usage_flag
))
2514 /* Decode switches from environment variable ENVAR (which is LEN chars long).
2515 We do this by chopping the value into a vector of words, prepending a
2516 dash to the first word if it lacks one, and passing the vector to
2520 decode_env_switches (char *envar
, unsigned int len
)
2522 char *varref
= (char *) alloca (2 + len
+ 2);
2527 /* Get the variable's value. */
2530 bcopy (envar
, &varref
[2], len
);
2531 varref
[2 + len
] = ')';
2532 varref
[2 + len
+ 1] = '\0';
2533 value
= variable_expand (varref
);
2535 /* Skip whitespace, and check for an empty value. */
2536 value
= next_token (value
);
2537 len
= strlen (value
);
2541 /* Allocate a vector that is definitely big enough. */
2542 argv
= (char **) alloca ((1 + len
+ 1) * sizeof (char *));
2544 /* Allocate a buffer to copy the value into while we split it into words
2545 and unquote it. We must use permanent storage for this because
2546 decode_switches may store pointers into the passed argument words. */
2547 p
= (char *) xmalloc (2 * len
);
2549 /* getopt will look at the arguments starting at ARGV[1].
2550 Prepend a spacer word. */
2554 while (*value
!= '\0')
2556 if (*value
== '\\' && value
[1] != '\0')
2557 ++value
; /* Skip the backslash. */
2558 else if (isblank ((unsigned char)*value
))
2560 /* End of the word. */
2565 while (isblank ((unsigned char)*value
));
2573 if (argv
[1][0] != '-' && strchr (argv
[1], '=') == 0)
2574 /* The first word doesn't start with a dash and isn't a variable
2575 definition. Add a dash and pass it along to decode_switches. We
2576 need permanent storage for this in case decode_switches saves
2577 pointers into the value. */
2578 argv
[1] = concat ("-", argv
[1], "");
2580 /* Parse those words. */
2581 decode_switches (argc
, argv
, 1);
2584 /* Quote the string IN so that it will be interpreted as a single word with
2585 no magic by decode_env_switches; also double dollar signs to avoid
2586 variable expansion in make itself. Write the result into OUT, returning
2587 the address of the next character to be written.
2588 Allocating space for OUT twice the length of IN is always sufficient. */
2591 quote_for_env (char *out
, char *in
)
2597 else if (isblank ((unsigned char)*in
) || *in
== '\\')
2605 /* Define the MAKEFLAGS and MFLAGS variables to reflect the settings of the
2606 command switches. Include options with args if ALL is nonzero.
2607 Don't include options with the `no_makefile' flag set if MAKEFILE. */
2610 define_makeflags (int all
, int makefile
)
2612 static const char ref
[] = "$(MAKEOVERRIDES)";
2613 static const char posixref
[] = "$(-*-command-variables-*-)";
2614 register const struct command_switch
*cs
;
2620 /* We will construct a linked list of `struct flag's describing
2621 all the flags which need to go in MAKEFLAGS. Then, once we
2622 know how many there are and their lengths, we can put them all
2623 together in a string. */
2628 const struct command_switch
*cs
;
2631 struct flag
*flags
= 0;
2632 unsigned int flagslen
= 0;
2633 #define ADD_FLAG(ARG, LEN) \
2635 struct flag *new = (struct flag *) alloca (sizeof (struct flag)); \
2638 new->next = flags; \
2640 if (new->arg == 0) \
2641 ++flagslen; /* Just a single flag letter. */ \
2643 flagslen += 1 + 1 + 1 + 1 + 3 * (LEN); /* " -x foo" */ \
2644 if (!short_option (cs->c)) \
2645 /* This switch has no single-letter version, so we use the long. */ \
2646 flagslen += 2 + strlen (cs->long_name); \
2649 for (cs
= switches
; cs
->c
!= '\0'; ++cs
)
2650 if (cs
->toenv
&& (!makefile
|| !cs
->no_makefile
))
2661 if (!*(int *) cs
->value_ptr
== (cs
->type
== flag_off
)
2662 && (cs
->default_value
== 0
2663 || *(int *) cs
->value_ptr
!= *(int *) cs
->default_value
))
2670 if ((cs
->default_value
!= 0
2671 && (*(unsigned int *) cs
->value_ptr
2672 == *(unsigned int *) cs
->default_value
)))
2674 else if (cs
->noarg_value
!= 0
2675 && (*(unsigned int *) cs
->value_ptr
==
2676 *(unsigned int *) cs
->noarg_value
))
2677 ADD_FLAG ("", 0); /* Optional value omitted; see below. */
2678 else if (cs
->c
== 'j')
2679 /* Special case for `-j'. */
2683 char *buf
= (char *) alloca (30);
2684 sprintf (buf
, "%u", *(unsigned int *) cs
->value_ptr
);
2685 ADD_FLAG (buf
, strlen (buf
));
2694 if (cs
->default_value
!= 0
2695 && (*(double *) cs
->value_ptr
2696 == *(double *) cs
->default_value
))
2698 else if (cs
->noarg_value
!= 0
2699 && (*(double *) cs
->value_ptr
2700 == *(double *) cs
->noarg_value
))
2701 ADD_FLAG ("", 0); /* Optional value omitted; see below. */
2704 char *buf
= (char *) alloca (100);
2705 sprintf (buf
, "%g", *(double *) cs
->value_ptr
);
2706 ADD_FLAG (buf
, strlen (buf
));
2715 struct stringlist
*sl
= *(struct stringlist
**) cs
->value_ptr
;
2718 /* Add the elements in reverse order, because
2719 all the flags get reversed below; and the order
2720 matters for some switches (like -I). */
2721 register unsigned int i
= sl
->idx
;
2723 ADD_FLAG (sl
->list
[i
], strlen (sl
->list
[i
]));
2729 flagslen
+= 4 + sizeof posixref
; /* Four more for the possible " -- ". */
2733 /* Construct the value in FLAGSTRING.
2734 We allocate enough space for a preceding dash and trailing null. */
2735 flagstring
= (char *) alloca (1 + flagslen
+ 1);
2736 bzero (flagstring
, 1 + flagslen
+ 1);
2742 /* Add the flag letter or name to the string. */
2743 if (short_option (flags
->cs
->c
))
2744 *p
++ = flags
->cs
->c
;
2753 strcpy (p
, flags
->cs
->long_name
);
2756 if (flags
->arg
!= 0)
2758 /* A flag that takes an optional argument which in this case is
2759 omitted is specified by ARG being "". We must distinguish
2760 because a following flag appended without an intervening " -"
2761 is considered the arg for the first. */
2762 if (flags
->arg
[0] != '\0')
2764 /* Add its argument too. */
2765 *p
++ = !short_option (flags
->cs
->c
) ? '=' : ' ';
2766 p
= quote_for_env (p
, flags
->arg
);
2769 /* Write a following space and dash, for the next flag. */
2773 else if (!short_option (flags
->cs
->c
))
2776 /* Long options must each go in their own word,
2777 so we write the following space and dash. */
2781 flags
= flags
->next
;
2784 /* Define MFLAGS before appending variable definitions. */
2786 if (p
== &flagstring
[1])
2788 flagstring
[0] = '\0';
2789 else if (p
[-1] == '-')
2791 /* Kill the final space and dash. */
2796 /* Terminate the string. */
2799 /* Since MFLAGS is not parsed for flags, there is no reason to
2800 override any makefile redefinition. */
2801 (void) define_variable ("MFLAGS", 6, flagstring
, o_env
, 1);
2803 if (all
&& command_variables
!= 0)
2805 /* Now write a reference to $(MAKEOVERRIDES), which contains all the
2806 command-line variable definitions. */
2808 if (p
== &flagstring
[1])
2809 /* No flags written, so elide the leading dash already written. */
2813 /* Separate the variables from the switches with a "--" arg. */
2816 /* We did not already write a trailing " -". */
2820 /* There is a trailing " -"; fill it out to " -- ". */
2825 /* Copy in the string. */
2828 bcopy (posixref
, p
, sizeof posixref
- 1);
2829 p
+= sizeof posixref
- 1;
2833 bcopy (ref
, p
, sizeof ref
- 1);
2834 p
+= sizeof ref
- 1;
2837 else if (p
== &flagstring
[1])
2842 else if (p
[-1] == '-')
2843 /* Kill the final space and dash. */
2845 /* Terminate the string. */
2848 v
= define_variable ("MAKEFLAGS", 9,
2849 /* If there are switches, omit the leading dash
2850 unless it is a single long option with two
2852 &flagstring
[(flagstring
[0] == '-'
2853 && flagstring
[1] != '-')
2855 /* This used to use o_env, but that lost when a
2856 makefile defined MAKEFLAGS. Makefiles set
2857 MAKEFLAGS to add switches, but we still want
2858 to redefine its value with the full set of
2859 switches. Of course, an override or command
2860 definition will still take precedence. */
2863 /* The first time we are called, set MAKEFLAGS to always be exported.
2864 We should not do this again on the second call, because that is
2865 after reading makefiles which might have done `unexport MAKEFLAGS'. */
2866 v
->export
= v_export
;
2869 /* Print version information. */
2872 print_version (void)
2874 static int printed_version
= 0;
2876 char *precede
= print_data_base_flag
? "# " : "";
2878 if (printed_version
)
2879 /* Do it only once. */
2882 /* Print this untranslated. The coding standards recommend translating the
2883 (C) to the copyright symbol, but this string is going to change every
2884 year, and none of the rest of it should be translated (including the
2885 word "Copyright", so it hardly seems worth it. */
2887 printf ("%sGNU Make %s\n\
2888 %sCopyright (C) 2003 Free Software Foundation, Inc.\n",
2889 precede
, version_string
, precede
);
2891 printf (_("%sThis is free software; see the source for copying conditions.\n\
2892 %sThere is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A\n\
2893 %sPARTICULAR PURPOSE.\n"),
2894 precede
, precede
, precede
);
2896 if (!remote_description
|| *remote_description
== '\0')
2897 printf (_("\n%sThis program built for %s\n"), precede
, make_host
);
2899 printf (_("\n%sThis program built for %s (%s)\n"),
2900 precede
, make_host
, remote_description
);
2902 printed_version
= 1;
2904 /* Flush stdout so the user doesn't have to wait to see the
2905 version information while things are thought about. */
2909 /* Print a bunch of information about this and that. */
2912 print_data_base (void)
2916 when
= time ((time_t *) 0);
2917 printf (_("\n# Make data base, printed on %s"), ctime (&when
));
2919 print_variable_data_base ();
2920 print_dir_data_base ();
2921 print_rule_data_base ();
2922 print_file_data_base ();
2923 print_vpath_data_base ();
2925 when
= time ((time_t *) 0);
2926 printf (_("\n# Finished Make data base on %s\n"), ctime (&when
));
2929 /* Exit with STATUS, cleaning up as necessary. */
2934 static char dying
= 0;
2942 if (print_version_flag
)
2945 /* Wait for children to die. */
2946 for (err
= (status
!= 0); job_slots_used
> 0; err
= 0)
2947 reap_children (1, err
);
2949 /* Let the remote job module clean up its state. */
2952 /* Remove the intermediate files. */
2953 remove_intermediates (0);
2955 if (print_data_base_flag
)
2958 /* Try to move back to the original directory. This is essential on
2959 MS-DOS (where there is really only one process), and on Unix it
2960 puts core files in the original directory instead of the -C
2961 directory. Must wait until after remove_intermediates(), or unlinks
2962 of relative pathnames fail. */
2963 if (directory_before_chdir
!= 0)
2964 chdir (directory_before_chdir
);
2966 log_working_directory (0);
2972 /* Write a message indicating that we've just entered or
2973 left (according to ENTERING) the current directory. */
2976 log_working_directory (int entering
)
2978 static int entered
= 0;
2980 /* Print nothing without the flag. Don't print the entering message
2981 again if we already have. Don't print the leaving message if we
2982 haven't printed the entering message. */
2983 if (! print_directory_flag
|| entering
== entered
)
2988 if (print_data_base_flag
)
2989 fputs ("# ", stdout
);
2991 /* Use entire sentences to give the translators a fighting chance. */
2994 if (starting_directory
== 0)
2996 printf (_("%s: Entering an unknown directory\n"), program
);
2998 printf (_("%s: Leaving an unknown directory\n"), program
);
3001 printf (_("%s: Entering directory `%s'\n"),
3002 program
, starting_directory
);
3004 printf (_("%s: Leaving directory `%s'\n"),
3005 program
, starting_directory
);
3007 if (starting_directory
== 0)
3009 printf (_("%s[%u]: Entering an unknown directory\n"),
3010 program
, makelevel
);
3012 printf (_("%s[%u]: Leaving an unknown directory\n"),
3013 program
, makelevel
);
3016 printf (_("%s[%u]: Entering directory `%s'\n"),
3017 program
, makelevel
, starting_directory
);
3019 printf (_("%s[%u]: Leaving directory `%s'\n"),
3020 program
, makelevel
, starting_directory
);
3022 /* Flush stdout to be sure this comes before any stderr output. */