1 /* Miscellaneous global declarations and portability cruft for GNU Make.
2 Copyright (C) 1988,89,90,91,92,93,94,95,96,97,99 Free Software Foundation, Inc.
3 This file is part of GNU Make.
5 GNU Make is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2, or (at your option)
10 GNU Make is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNU Make; see the file COPYING. If not, write to
17 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
20 /* We use <config.h> instead of "config.h" so that a compilation
21 using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
22 (which it would do because make.h was found in $srcdir). */
25 #define HAVE_CONFIG_H 1
27 /* AIX requires this to be the first thing in the file. */
35 # ifndef alloca /* predefined by HP cc +Olibcalls */
43 /* Use prototypes if available. */
44 #if defined (__cplusplus) || (defined (__STDC__) && __STDC__)
46 # define PARAMS(protos) protos
47 #else /* Not C++ or ANSI C. */
49 # define PARAMS(protos) ()
50 #endif /* C++ or ANSI C. */
52 /* Specify we want GNU source code. This must be defined before any
53 system headers are included. */
59 /* This must happen before #include <signal.h> so
60 that the declaration therein is changed. */
61 # define signal bsdsignal
64 /* If we're compiling for the dmalloc debugger, turn off string inlining. */
65 #if defined(HAVE_DMALLOC_H) && defined(__GNUC__)
66 # define __NO_STRING_INLINES
69 #include <sys/types.h>
74 #ifdef HAVE_SYS_TIMEB_H
75 /* SCO 3.2 "devsys 4.2" has a prototype for `ftime' in <time.h> that bombs
76 unless <sys/timeb.h> has been included first. Does every system have a
77 <sys/timeb.h>? If any does not, configure should check for it. */
78 # include <sys/timeb.h>
81 #if TIME_WITH_SYS_TIME
82 # include <sys/time.h>
86 # include <sys/time.h>
99 # define isblank(c) ((c) == ' ' || (c) == '\t')
104 /* Ultrix's unistd.h always defines _POSIX_VERSION, but you only get
105 POSIX.1 behavior with `cc -YPOSIX', which predefines POSIX itself! */
106 # if defined (_POSIX_VERSION) && !defined (ultrix) && !defined (VMS)
111 /* Some systems define _POSIX_VERSION but are not really POSIX.1. */
112 #if (defined (butterfly) || defined (__arm) || (defined (__mips) && defined (_SYSTYPE_SVR3)) || (defined (sequent) && defined (i386)))
116 #if !defined (POSIX) && defined (_AIX) && defined (_POSIX_SOURCE)
121 # define RETSIGTYPE void
125 # define sigmask(sig) (1 << ((sig) - 1))
128 #ifndef HAVE_SA_RESTART
129 # define SA_RESTART 0
135 #ifdef HAVE_SYS_PARAM_H
136 # include <sys/param.h>
141 # define PATH_MAX MAXPATHLEN
145 # define MAXPATHLEN 1024
149 # define GET_PATH_MAX PATH_MAX
150 # define PATH_VAR(var) char var[PATH_MAX]
152 # define NEED_GET_PATH_MAX 1
153 # define GET_PATH_MAX (get_path_max ())
154 # define PATH_VAR(var) char *var = (char *) alloca (GET_PATH_MAX)
155 extern unsigned int get_path_max
PARAMS ((void));
162 /* Nonzero if the integer type T is signed. */
163 #define INTEGER_TYPE_SIGNED(t) ((t) -1 < 0)
165 /* The minimum and maximum values for the integer type T.
166 Use ~ (t) 0, not -1, for portability to 1's complement hosts. */
167 #define INTEGER_TYPE_MINIMUM(t) \
168 (! INTEGER_TYPE_SIGNED (t) ? (t) 0 : ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))
169 #define INTEGER_TYPE_MAXIMUM(t) (~ (t) 0 - INTEGER_TYPE_MINIMUM (t))
172 # define CHAR_MAX INTEGER_TYPE_MAXIMUM (char)
175 #ifdef STAT_MACROS_BROKEN
182 #endif /* STAT_MACROS_BROKEN. */
185 # define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)
188 # define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
193 # include <unixlib.h>
198 #ifndef __attribute__
199 /* This feature is available in gcc versions 2.5 and later. */
200 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
201 # define __attribute__(x)
203 /* The __-protected variants of `format' and `printf' attributes
204 are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
205 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
206 # define __format__ format
207 # define __printf__ printf
211 #if defined (STDC_HEADERS) || defined (__GNU_LIBRARY__)
214 # define ANSI_STRING 1
215 #else /* No standard headers. */
216 # ifdef HAVE_STRING_H
218 # define ANSI_STRING 1
220 # include <strings.h>
222 # ifdef HAVE_MEMORY_H
225 # ifdef HAVE_STDLIB_H
228 extern char *malloc
PARAMS ((int));
229 extern char *realloc
PARAMS ((char *, int));
230 extern void free
PARAMS ((char *));
232 extern void abort
PARAMS ((void)) __attribute__ ((noreturn
));
233 extern void exit
PARAMS ((int)) __attribute__ ((noreturn
));
234 # endif /* HAVE_STDLIB_H. */
236 #endif /* Standard headers. */
238 /* These should be in stdlib.h. Make sure we have them. */
240 # define EXIT_SUCCESS 0
243 # define EXIT_FAILURE 0
249 # define bcmp(s1, s2, n) memcmp ((s1), (s2), (n))
252 # define bzero(s, n) memset ((s), 0, (n))
254 # if defined(HAVE_MEMMOVE) && !defined(bcopy)
255 # define bcopy(s, d, n) memmove ((d), (s), (n))
258 #else /* Not ANSI_STRING. */
261 # define strchr(s, c) index((s), (c))
262 # define strrchr(s, c) rindex((s), (c))
266 extern int bcmp
PARAMS ((const char *, const char *, int));
269 extern void bzero
PARAMS ((char *, int));
272 extern void bcopy
PARAMS ((const char *b1
, char *b2
, int));
275 #endif /* ANSI_STRING. */
278 /* SCO Xenix has a buggy macro definition in <string.h>. */
281 #if !defined(ANSI_STRING) && !defined(__DECC)
282 extern char *strerror
PARAMS ((int errnum
));
286 # include <inttypes.h>
288 #define FILE_TIMESTAMP uintmax_t
290 #if !defined(HAVE_STRSIGNAL)
291 extern char *strsignal
PARAMS ((int signum
));
294 /* ISDIGIT offers the following features:
295 - Its arg may be any int or unsigned int; it need not be an unsigned char.
296 - It's guaranteed to evaluate its argument exactly once.
297 NOTE! Make relies on this behavior, don't change it!
298 - It's typically faster.
299 Posix 1003.2-1992 section 2.5.2.1 page 50 lines 1556-1558 says that
300 only '0' through '9' are digits. Prefer ISDIGIT to isdigit() unless
301 it's important to use the locale's definition of `digit' even when the
302 host does not conform to Posix. */
303 #define ISDIGIT(c) ((unsigned) (c) - '0' <= 9)
306 # define streq(a, b) \
308 (*(a) == *(b) && (*(a) == '\0' || !strcmp ((a) + 1, (b) + 1))))
309 # ifdef HAVE_CASE_INSENSITIVE_FS
310 /* This is only used on Windows/DOS platforms, so we assume strcmpi(). */
311 # define strieq(a, b) \
313 || (tolower((unsigned char)*(a)) == tolower((unsigned char)*(b)) \
314 && (*(a) == '\0' || !strcmpi ((a) + 1, (b) + 1))))
316 # define strieq(a, b) streq(a, b)
319 /* Buggy compiler can't handle this. */
320 # define streq(a, b) (strcmp ((a), (b)) == 0)
321 # define strieq(a, b) (strcmp ((a), (b)) == 0)
323 #define strneq(a, b, l) (strncmp ((a), (b), (l)) == 0)
325 extern int strcmpi (const char *,const char *);
328 /* Add to VAR the hashing value of C, one character in a name. */
329 #define HASH(var, c) \
330 ((var += (c)), (var = ((var) << 7) + ((var) >> 20)))
331 #ifdef HAVE_CASE_INSENSITIVE_FS /* Fold filenames */
332 # define HASHI(var, c) \
333 ((var += tolower((unsigned char)(c))), (var = ((var) << 7) + ((var) >> 20)))
335 # define HASHI(var, c) HASH(var,c)
338 #if defined(__GNUC__) || defined(ENUM_BITFIELDS)
339 # define ENUM_BITFIELD(bits) :bits
341 # define ENUM_BITFIELD(bits)
344 /* Handle gettext and locales. */
349 # define setlocale(category, locale)
354 #define _(msgid) gettext (msgid)
355 #define N_(msgid) gettext_noop (msgid)
356 #define S_(msg1,msg2,num) ngettext (msg1,msg2,num)
358 /* Handle other OSs. */
360 #if defined(__MSDOS__) || defined(WINDOWS32)
361 # define PATH_SEPARATOR_CHAR ';'
364 # define PATH_SEPARATOR_CHAR ','
366 # define PATH_SEPARATOR_CHAR ':'
373 # define pipe(p) _pipe(p, 512, O_BINARY)
374 # define kill(pid,sig) w32_kill(pid,sig)
376 extern void sync_Path_environment(void);
377 extern int kill(int pid
, int sig
);
378 extern int safe_stat(char *file
, struct stat
*sb
);
379 extern char *end_of_token_w32(char *s
, char stopchar
);
380 extern int find_and_set_default_shell(char *token
);
382 /* indicates whether or not we have Bourne shell */
383 extern int no_default_sh_exe
;
385 /* is default_shell unixy? */
386 extern int unixy_shell
;
387 #endif /* WINDOWS32 */
392 unsigned long lineno
;
394 #define NILF ((struct floc *)0)
396 #define STRING_SIZE_TUPLE(_s) (_s), (sizeof (_s)-1)
399 /* Fancy processing for variadic functions in both ANSI and pre-ANSI
401 #if defined __STDC__ && __STDC__
402 extern void message (int prefix
, const char *fmt
, ...)
403 __attribute__ ((__format__ (__printf__
, 2, 3)));
404 extern void error (const struct floc
*flocp
, const char *fmt
, ...)
405 __attribute__ ((__format__ (__printf__
, 2, 3)));
406 extern void fatal (const struct floc
*flocp
, const char *fmt
, ...)
407 __attribute__ ((noreturn
, __format__ (__printf__
, 2, 3)));
409 extern void message ();
410 extern void error ();
411 extern void fatal ();
414 extern void die
PARAMS ((int)) __attribute__ ((noreturn
));
415 extern void log_working_directory
PARAMS ((int));
416 extern void pfatal_with_name
PARAMS ((const char *)) __attribute__ ((noreturn
));
417 extern void perror_with_name
PARAMS ((const char *, const char *));
418 extern char *savestring
PARAMS ((const char *, unsigned int));
419 extern char *concat
PARAMS ((const char *, const char *, const char *));
420 extern char *xmalloc
PARAMS ((unsigned int));
421 extern char *xrealloc
PARAMS ((char *, unsigned int));
422 extern char *xstrdup
PARAMS ((const char *));
423 extern char *find_next_token
PARAMS ((char **, unsigned int *));
424 extern char *next_token
PARAMS ((const char *));
425 extern char *end_of_token
PARAMS ((char *));
426 extern void collapse_continuations
PARAMS ((char *));
427 extern void remove_comments
PARAMS((char *));
428 extern char *sindex
PARAMS ((const char *, unsigned int, \
429 const char *, unsigned int));
430 extern char *lindex
PARAMS ((const char *, const char *, int));
431 extern int alpha_compare
PARAMS ((const void *, const void *));
432 extern void print_spaces
PARAMS ((unsigned int));
433 extern char *find_char_unquote
PARAMS ((char *, char *, int));
434 extern char *find_percent
PARAMS ((char *));
435 extern FILE *open_tmpfile
PARAMS ((char **, const char *));
438 extern int ar_name
PARAMS ((char *));
439 extern void ar_parse_name
PARAMS ((char *, char **, char **));
440 extern int ar_touch
PARAMS ((char *));
441 extern time_t ar_member_date
PARAMS ((char *));
444 extern int dir_file_exists_p
PARAMS ((char *, char *));
445 extern int file_exists_p
PARAMS ((char *));
446 extern int file_impossible_p
PARAMS ((char *));
447 extern void file_impossible
PARAMS ((char *));
448 extern char *dir_name
PARAMS ((char *));
450 extern void define_default_variables
PARAMS ((void));
451 extern void set_default_suffixes
PARAMS ((void));
452 extern void install_default_suffix_rules
PARAMS ((void));
453 extern void install_default_implicit_rules
PARAMS ((void));
455 extern void build_vpath_lists
PARAMS ((void));
456 extern void construct_vpath_list
PARAMS ((char *pattern
, char *dirpath
));
457 extern int vpath_search
PARAMS ((char **file
, FILE_TIMESTAMP
*mtime_ptr
));
458 extern int gpath_search
PARAMS ((char *file
, int len
));
460 extern void construct_include_path
PARAMS ((char **arg_dirs
));
462 extern void user_access
PARAMS ((void));
463 extern void make_access
PARAMS ((void));
464 extern void child_access
PARAMS ((void));
470 /* We omit these declarations on non-POSIX systems which define _POSIX_VERSION,
471 because such systems often declare them in header files anyway. */
473 #if !defined (__GNU_LIBRARY__) && !defined (POSIX) && !defined (_POSIX_VERSION) && !defined(WINDOWS32)
475 extern long int atol ();
477 extern long int lseek ();
480 #endif /* Not GNU C library or POSIX. */
483 # if !defined(VMS) && !defined(__DECC)
484 extern char *getcwd ();
487 extern char *getwd ();
488 # define getcwd(buf, len) getwd (buf)
491 extern const struct floc
*reading_file
;
493 extern char **environ
;
495 extern int just_print_flag
, silent_flag
, ignore_errors_flag
, keep_going_flag
;
496 extern int print_data_base_flag
, question_flag
, touch_flag
;
497 extern int env_overrides
, no_builtin_rules_flag
, no_builtin_variables_flag
;
498 extern int print_version_flag
, print_directory_flag
;
499 extern int warn_undefined_variables_flag
, posix_pedantic
, not_parallel
;
500 extern int clock_skew_detected
;
502 /* can we run commands via 'sh -c xxx' or must we use batch files? */
503 extern int batch_mode_shell
;
505 extern unsigned int job_slots
;
506 extern int job_fds
[2];
509 extern double max_load_average
;
511 extern int max_load_average
;
514 extern char *program
;
515 extern char *starting_directory
;
516 extern unsigned int makelevel
;
517 extern char *version_string
, *remote_description
;
519 extern unsigned int commands_started
;
521 extern int handling_fatal_signal
;
525 #define MIN(_a,_b) ((_a)<(_b)?(_a):(_b))
528 #define MAX(_a,_b) ((_a)>(_b)?(_a):(_b))
532 # define MAKE_SUCCESS 1
533 # define MAKE_TROUBLE 2
534 # define MAKE_FAILURE 3
536 # define MAKE_SUCCESS 0
537 # define MAKE_TROUBLE 1
538 # define MAKE_FAILURE 2
541 /* Set up heap debugging library dmalloc. */
543 #ifdef HAVE_DMALLOC_H