| /* Miscellaneous global declarations and portability cruft for GNU Make. |
| Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999, |
| 2002 Free Software Foundation, Inc. |
| This file is part of GNU Make. |
| |
| GNU Make is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Make is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Make; see the file COPYING. If not, write to |
| the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| /* We use <config.h> instead of "config.h" so that a compilation |
| using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h |
| (which it would do because make.h was found in $srcdir). */ |
| #include <config.h> |
| #undef HAVE_CONFIG_H |
| #define HAVE_CONFIG_H 1 |
| |
| /* AIX requires this to be the first thing in the file. */ |
| #ifndef __GNUC__ |
| # if HAVE_ALLOCA_H |
| # include <alloca.h> |
| # else |
| # ifdef _AIX |
| #pragma alloca |
| # else |
| # ifndef alloca /* predefined by HP cc +Olibcalls */ |
| char *alloca (); |
| # endif |
| # endif |
| # endif |
| #endif |
| |
| |
| /* Use prototypes if available. */ |
| #if defined (__cplusplus) || (defined (__STDC__) && __STDC__) |
| # undef PARAMS |
| # define PARAMS(protos) protos |
| #else /* Not C++ or ANSI C. */ |
| # undef PARAMS |
| # define PARAMS(protos) () |
| #endif /* C++ or ANSI C. */ |
| |
| /* Specify we want GNU source code. This must be defined before any |
| system headers are included. */ |
| |
| #define _GNU_SOURCE 1 |
| |
| |
| #ifdef CRAY |
| /* This must happen before #include <signal.h> so |
| that the declaration therein is changed. */ |
| # define signal bsdsignal |
| #endif |
| |
| /* If we're compiling for the dmalloc debugger, turn off string inlining. */ |
| #if defined(HAVE_DMALLOC_H) && defined(__GNUC__) |
| # define __NO_STRING_INLINES |
| #endif |
| |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <signal.h> |
| #include <stdio.h> |
| #include <ctype.h> |
| #ifdef HAVE_SYS_TIMEB_H |
| /* SCO 3.2 "devsys 4.2" has a prototype for `ftime' in <time.h> that bombs |
| unless <sys/timeb.h> has been included first. Does every system have a |
| <sys/timeb.h>? If any does not, configure should check for it. */ |
| # include <sys/timeb.h> |
| #endif |
| |
| #if TIME_WITH_SYS_TIME |
| # include <sys/time.h> |
| # include <time.h> |
| #else |
| # if HAVE_SYS_TIME_H |
| # include <sys/time.h> |
| # else |
| # include <time.h> |
| # endif |
| #endif |
| |
| #include <errno.h> |
| |
| #ifndef errno |
| extern int errno; |
| #endif |
| |
| #ifndef isblank |
| # define isblank(c) ((c) == ' ' || (c) == '\t') |
| #endif |
| |
| #ifdef HAVE_UNISTD_H |
| # include <unistd.h> |
| /* Ultrix's unistd.h always defines _POSIX_VERSION, but you only get |
| POSIX.1 behavior with `cc -YPOSIX', which predefines POSIX itself! */ |
| # if defined (_POSIX_VERSION) && !defined (ultrix) && !defined (VMS) |
| # define POSIX 1 |
| # endif |
| #endif |
| |
| /* Some systems define _POSIX_VERSION but are not really POSIX.1. */ |
| #if (defined (butterfly) || defined (__arm) || (defined (__mips) && defined (_SYSTYPE_SVR3)) || (defined (sequent) && defined (i386))) |
| # undef POSIX |
| #endif |
| |
| #if !defined (POSIX) && defined (_AIX) && defined (_POSIX_SOURCE) |
| # define POSIX 1 |
| #endif |
| |
| #ifndef RETSIGTYPE |
| # define RETSIGTYPE void |
| #endif |
| |
| #ifndef sigmask |
| # define sigmask(sig) (1 << ((sig) - 1)) |
| #endif |
| |
| #ifndef HAVE_SA_RESTART |
| # define SA_RESTART 0 |
| #endif |
| |
| #ifdef HAVE_LIMITS_H |
| # include <limits.h> |
| #endif |
| #ifdef HAVE_SYS_PARAM_H |
| # include <sys/param.h> |
| #endif |
| |
| #ifndef PATH_MAX |
| # ifndef POSIX |
| # define PATH_MAX MAXPATHLEN |
| # endif |
| #endif |
| #ifndef MAXPATHLEN |
| # define MAXPATHLEN 1024 |
| #endif |
| |
| #ifdef PATH_MAX |
| # define GET_PATH_MAX PATH_MAX |
| # define PATH_VAR(var) char var[PATH_MAX] |
| #else |
| # define NEED_GET_PATH_MAX 1 |
| # define GET_PATH_MAX (get_path_max ()) |
| # define PATH_VAR(var) char *var = (char *) alloca (GET_PATH_MAX) |
| extern unsigned int get_path_max PARAMS ((void)); |
| #endif |
| |
| #ifndef CHAR_BIT |
| # define CHAR_BIT 8 |
| #endif |
| |
| /* Nonzero if the integer type T is signed. */ |
| #define INTEGER_TYPE_SIGNED(t) ((t) -1 < 0) |
| |
| /* The minimum and maximum values for the integer type T. |
| Use ~ (t) 0, not -1, for portability to 1's complement hosts. */ |
| #define INTEGER_TYPE_MINIMUM(t) \ |
| (! INTEGER_TYPE_SIGNED (t) ? (t) 0 : ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1)) |
| #define INTEGER_TYPE_MAXIMUM(t) (~ (t) 0 - INTEGER_TYPE_MINIMUM (t)) |
| |
| #ifndef CHAR_MAX |
| # define CHAR_MAX INTEGER_TYPE_MAXIMUM (char) |
| #endif |
| |
| #ifdef STAT_MACROS_BROKEN |
| # ifdef S_ISREG |
| # undef S_ISREG |
| # endif |
| # ifdef S_ISDIR |
| # undef S_ISDIR |
| # endif |
| #endif /* STAT_MACROS_BROKEN. */ |
| |
| #ifndef S_ISREG |
| # define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG) |
| #endif |
| #ifndef S_ISDIR |
| # define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR) |
| #endif |
| |
| #ifdef VMS |
| # include <types.h> |
| # include <unixlib.h> |
| # include <unixio.h> |
| # include <perror.h> |
| /* Needed to use alloca on VMS. */ |
| # include <builtins.h> |
| #endif |
| |
| #ifndef __attribute__ |
| /* This feature is available in gcc versions 2.5 and later. */ |
| # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__ |
| # define __attribute__(x) |
| # endif |
| /* The __-protected variants of `format' and `printf' attributes |
| are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */ |
| # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7) |
| # define __format__ format |
| # define __printf__ printf |
| # endif |
| #endif |
| |
| #if defined (STDC_HEADERS) || defined (__GNU_LIBRARY__) |
| # include <stdlib.h> |
| # include <string.h> |
| # define ANSI_STRING 1 |
| #else /* No standard headers. */ |
| # ifdef HAVE_STRING_H |
| # include <string.h> |
| # define ANSI_STRING 1 |
| # else |
| # include <strings.h> |
| # endif |
| # ifdef HAVE_MEMORY_H |
| # include <memory.h> |
| # endif |
| # ifdef HAVE_STDLIB_H |
| # include <stdlib.h> |
| # else |
| extern char *malloc PARAMS ((int)); |
| extern char *realloc PARAMS ((char *, int)); |
| extern void free PARAMS ((char *)); |
| |
| extern void abort PARAMS ((void)) __attribute__ ((noreturn)); |
| extern void exit PARAMS ((int)) __attribute__ ((noreturn)); |
| # endif /* HAVE_STDLIB_H. */ |
| |
| #endif /* Standard headers. */ |
| |
| /* These should be in stdlib.h. Make sure we have them. */ |
| #ifndef EXIT_SUCCESS |
| # define EXIT_SUCCESS 0 |
| #endif |
| #ifndef EXIT_FAILURE |
| # define EXIT_FAILURE 0 |
| #endif |
| |
| #ifdef ANSI_STRING |
| |
| # ifndef bcmp |
| # define bcmp(s1, s2, n) memcmp ((s1), (s2), (n)) |
| # endif |
| # ifndef bzero |
| # define bzero(s, n) memset ((s), 0, (n)) |
| # endif |
| # if defined(HAVE_MEMMOVE) && !defined(bcopy) |
| # define bcopy(s, d, n) memmove ((d), (s), (n)) |
| # endif |
| |
| #else /* Not ANSI_STRING. */ |
| |
| # ifndef HAVE_STRCHR |
| # define strchr(s, c) index((s), (c)) |
| # define strrchr(s, c) rindex((s), (c)) |
| # endif |
| |
| # ifndef bcmp |
| extern int bcmp PARAMS ((const char *, const char *, int)); |
| # endif |
| # ifndef bzero |
| extern void bzero PARAMS ((char *, int)); |
| #endif |
| # ifndef bcopy |
| extern void bcopy PARAMS ((const char *b1, char *b2, int)); |
| # endif |
| |
| #endif /* ANSI_STRING. */ |
| #undef ANSI_STRING |
| |
| /* SCO Xenix has a buggy macro definition in <string.h>. */ |
| #undef strerror |
| |
| #if !defined(ANSI_STRING) && !defined(__DECC) |
| extern char *strerror PARAMS ((int errnum)); |
| #endif |
| |
| #if HAVE_INTTYPES_H |
| # include <inttypes.h> |
| #endif |
| #define FILE_TIMESTAMP uintmax_t |
| |
| #if !defined(HAVE_STRSIGNAL) |
| extern char *strsignal PARAMS ((int signum)); |
| #endif |
| |
| /* ISDIGIT offers the following features: |
| - Its arg may be any int or unsigned int; it need not be an unsigned char. |
| - It's guaranteed to evaluate its argument exactly once. |
| NOTE! Make relies on this behavior, don't change it! |
| - It's typically faster. |
| POSIX 1003.2-1992 section 2.5.2.1 page 50 lines 1556-1558 says that |
| only '0' through '9' are digits. Prefer ISDIGIT to isdigit() unless |
| it's important to use the locale's definition of `digit' even when the |
| host does not conform to POSIX. */ |
| #define ISDIGIT(c) ((unsigned) (c) - '0' <= 9) |
| |
| #ifndef iAPX286 |
| # define streq(a, b) \ |
| ((a) == (b) || \ |
| (*(a) == *(b) && (*(a) == '\0' || !strcmp ((a) + 1, (b) + 1)))) |
| # ifdef HAVE_CASE_INSENSITIVE_FS |
| /* This is only used on Windows/DOS platforms, so we assume strcmpi(). */ |
| # define strieq(a, b) \ |
| ((a) == (b) \ |
| || (tolower((unsigned char)*(a)) == tolower((unsigned char)*(b)) \ |
| && (*(a) == '\0' || !strcmpi ((a) + 1, (b) + 1)))) |
| # else |
| # define strieq(a, b) streq(a, b) |
| # endif |
| #else |
| /* Buggy compiler can't handle this. */ |
| # define streq(a, b) (strcmp ((a), (b)) == 0) |
| # define strieq(a, b) (strcmp ((a), (b)) == 0) |
| #endif |
| #define strneq(a, b, l) (strncmp ((a), (b), (l)) == 0) |
| #ifdef VMS |
| extern int strcmpi (const char *,const char *); |
| #endif |
| |
| #if defined(__GNUC__) || defined(ENUM_BITFIELDS) |
| # define ENUM_BITFIELD(bits) :bits |
| #else |
| # define ENUM_BITFIELD(bits) |
| #endif |
| |
| /* Handle gettext and locales. */ |
| |
| #if HAVE_LOCALE_H |
| # include <locale.h> |
| #else |
| # define setlocale(category, locale) |
| #endif |
| |
| #include <gettext.h> |
| |
| #define _(msgid) gettext (msgid) |
| #define N_(msgid) gettext_noop (msgid) |
| #define S_(msg1,msg2,num) ngettext (msg1,msg2,num) |
| |
| /* Handle other OSs. */ |
| |
| #if defined(__MSDOS__) || defined(WINDOWS32) |
| # define PATH_SEPARATOR_CHAR ';' |
| #else |
| # if defined(VMS) |
| # define PATH_SEPARATOR_CHAR ',' |
| # else |
| # define PATH_SEPARATOR_CHAR ':' |
| # endif |
| #endif |
| |
| #ifdef WINDOWS32 |
| # include <fcntl.h> |
| # include <malloc.h> |
| # define pipe(p) _pipe(p, 512, O_BINARY) |
| # define kill(pid,sig) w32_kill(pid,sig) |
| |
| extern void sync_Path_environment(void); |
| extern int kill(int pid, int sig); |
| extern int safe_stat(char *file, struct stat *sb); |
| extern char *end_of_token_w32(char *s, char stopchar); |
| extern int find_and_set_default_shell(char *token); |
| |
| /* indicates whether or not we have Bourne shell */ |
| extern int no_default_sh_exe; |
| |
| /* is default_shell unixy? */ |
| extern int unixy_shell; |
| #endif /* WINDOWS32 */ |
| |
| struct floc |
| { |
| char *filenm; |
| unsigned long lineno; |
| }; |
| #define NILF ((struct floc *)0) |
| |
| #define STRING_SIZE_TUPLE(_s) (_s), (sizeof (_s)-1) |
| |
| |
| /* Fancy processing for variadic functions in both ANSI and pre-ANSI |
| compilers. */ |
| #if defined __STDC__ && __STDC__ |
| extern void message (int prefix, const char *fmt, ...) |
| __attribute__ ((__format__ (__printf__, 2, 3))); |
| extern void error (const struct floc *flocp, const char *fmt, ...) |
| __attribute__ ((__format__ (__printf__, 2, 3))); |
| extern void fatal (const struct floc *flocp, const char *fmt, ...) |
| __attribute__ ((noreturn, __format__ (__printf__, 2, 3))); |
| #else |
| extern void message (); |
| extern void error (); |
| extern void fatal (); |
| #endif |
| |
| extern void die PARAMS ((int)) __attribute__ ((noreturn)); |
| extern void log_working_directory PARAMS ((int)); |
| extern void pfatal_with_name PARAMS ((const char *)) __attribute__ ((noreturn)); |
| extern void perror_with_name PARAMS ((const char *, const char *)); |
| extern char *savestring PARAMS ((const char *, unsigned int)); |
| extern char *concat PARAMS ((const char *, const char *, const char *)); |
| extern char *xmalloc PARAMS ((unsigned int)); |
| extern char *xrealloc PARAMS ((char *, unsigned int)); |
| extern char *xstrdup PARAMS ((const char *)); |
| extern char *find_next_token PARAMS ((char **, unsigned int *)); |
| extern char *next_token PARAMS ((const char *)); |
| extern char *end_of_token PARAMS ((char *)); |
| extern void collapse_continuations PARAMS ((char *)); |
| extern void remove_comments PARAMS((char *)); |
| extern char *sindex PARAMS ((const char *, unsigned int, \ |
| const char *, unsigned int)); |
| extern char *lindex PARAMS ((const char *, const char *, int)); |
| extern int alpha_compare PARAMS ((const void *, const void *)); |
| extern void print_spaces PARAMS ((unsigned int)); |
| extern char *find_char_unquote PARAMS ((char *, int, int, int)); |
| extern char *find_percent PARAMS ((char *)); |
| extern FILE *open_tmpfile PARAMS ((char **, const char *)); |
| |
| #ifndef NO_ARCHIVES |
| extern int ar_name PARAMS ((char *)); |
| extern void ar_parse_name PARAMS ((char *, char **, char **)); |
| extern int ar_touch PARAMS ((char *)); |
| extern time_t ar_member_date PARAMS ((char *)); |
| #endif |
| |
| extern int dir_file_exists_p PARAMS ((char *, char *)); |
| extern int file_exists_p PARAMS ((char *)); |
| extern int file_impossible_p PARAMS ((char *)); |
| extern void file_impossible PARAMS ((char *)); |
| extern char *dir_name PARAMS ((char *)); |
| extern void hash_init_directories PARAMS ((void)); |
| |
| extern void define_default_variables PARAMS ((void)); |
| extern void set_default_suffixes PARAMS ((void)); |
| extern void install_default_suffix_rules PARAMS ((void)); |
| extern void install_default_implicit_rules PARAMS ((void)); |
| |
| extern void build_vpath_lists PARAMS ((void)); |
| extern void construct_vpath_list PARAMS ((char *pattern, char *dirpath)); |
| extern int vpath_search PARAMS ((char **file, FILE_TIMESTAMP *mtime_ptr)); |
| extern int gpath_search PARAMS ((char *file, int len)); |
| |
| extern void construct_include_path PARAMS ((char **arg_dirs)); |
| |
| extern void user_access PARAMS ((void)); |
| extern void make_access PARAMS ((void)); |
| extern void child_access PARAMS ((void)); |
| |
| #ifdef HAVE_VFORK_H |
| # include <vfork.h> |
| #endif |
| |
| /* We omit these declarations on non-POSIX systems which define _POSIX_VERSION, |
| because such systems often declare them in header files anyway. */ |
| |
| #if !defined (__GNU_LIBRARY__) && !defined (POSIX) && !defined (_POSIX_VERSION) && !defined(WINDOWS32) |
| |
| extern long int atol (); |
| # ifndef VMS |
| extern long int lseek (); |
| # endif |
| |
| #endif /* Not GNU C library or POSIX. */ |
| |
| #ifdef HAVE_GETCWD |
| # if !defined(VMS) && !defined(__DECC) |
| extern char *getcwd (); |
| #endif |
| #else |
| extern char *getwd (); |
| # define getcwd(buf, len) getwd (buf) |
| #endif |
| |
| extern const struct floc *reading_file; |
| |
| extern char **environ; |
| |
| extern int just_print_flag, silent_flag, ignore_errors_flag, keep_going_flag; |
| extern int print_data_base_flag, question_flag, touch_flag, always_make_flag; |
| extern int env_overrides, no_builtin_rules_flag, no_builtin_variables_flag; |
| extern int print_version_flag, print_directory_flag; |
| extern int warn_undefined_variables_flag, posix_pedantic, not_parallel; |
| extern int clock_skew_detected; |
| |
| /* can we run commands via 'sh -c xxx' or must we use batch files? */ |
| extern int batch_mode_shell; |
| |
| extern unsigned int job_slots; |
| extern int job_fds[2]; |
| extern int job_rfd; |
| #ifndef NO_FLOAT |
| extern double max_load_average; |
| #else |
| extern int max_load_average; |
| #endif |
| |
| extern char *program; |
| extern char *starting_directory; |
| extern unsigned int makelevel; |
| extern char *version_string, *remote_description; |
| |
| extern unsigned int commands_started; |
| |
| extern int handling_fatal_signal; |
| |
| |
| #ifndef MIN |
| #define MIN(_a,_b) ((_a)<(_b)?(_a):(_b)) |
| #endif |
| #ifndef MAX |
| #define MAX(_a,_b) ((_a)>(_b)?(_a):(_b)) |
| #endif |
| |
| #ifdef VMS |
| # define MAKE_SUCCESS 1 |
| # define MAKE_TROUBLE 2 |
| # define MAKE_FAILURE 3 |
| #else |
| # define MAKE_SUCCESS 0 |
| # define MAKE_TROUBLE 1 |
| # define MAKE_FAILURE 2 |
| #endif |
| |
| /* Set up heap debugging library dmalloc. */ |
| |
| #ifdef HAVE_DMALLOC_H |
| #include <dmalloc.h> |
| #endif |
| |
| |
| /* If we have broken SA_RESTART support, then wrap stat() and readdir() with |
| versions that handle EINTR. Note that there are still plenty of system |
| calls that can fail with EINTR but this, reportedly, gets the vast |
| majority of failure cases. If you still experience failures you'll need |
| to either get a system where SA_RESTART works, or you need to avoid -j. */ |
| |
| #ifdef HAVE_BROKEN_RESTART |
| |
| /* Here we make an assumption that a system with a broken SA_RESTART has |
| dirent.h. Right now the only system I know of in this category is PTX, and |
| it does have dirent.h. |
| */ |
| #include <dirent.h> |
| |
| #define stat(_f,_b) atomic_stat ((_f), (_b)) |
| #define readdir(_d) atomic_readdir (_d) |
| |
| extern int atomic_stat PARAMS ((const char *file, struct stat *buf)); |
| extern struct dirent *atomic_readdir PARAMS ((DIR *dir)); |
| |
| #endif |
