/* Miscellaneous global declarations and portability cruft for GNU Make. Copyright (C) 1988,89,90,91,92,93,94,95,96,97,99 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. */ /* AIX requires this to be the first thing in the file. */ #if defined (_AIX) && !defined (__GNUC__) #pragma alloca #endif /* We use 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 #undef HAVE_CONFIG_H #define HAVE_CONFIG_H 1 /* 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. */ #include "gettext.h" #define _(Text) gettext (Text) #define N_(Text) gettext_noop (Text) #if !HAVE_SETLOCALE # define setlocale(Category, Locale) /* empty */ #endif #ifdef CRAY /* This must happen before #include 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 #define _GNU_SOURCE 1 #include #include #include #include #include #ifdef HAVE_SYS_TIMEB_H /* SCO 3.2 "devsys 4.2" has a prototype for `ftime' in that bombs unless has been included first. Does every system have a ? If any does not, configure should check for it. */ # include #endif #include #include #ifndef errno extern int errno; #endif /* A shortcut for EINTR checking. Note you should be careful when negating this! That might not mean what you want if EINTR is not available. */ #ifdef EINTR # define EINTR_SET (errno == EINTR) #else # define EINTR_SET (0) #endif #ifndef isblank # define isblank(c) ((c) == ' ' || (c) == '\t') #endif #ifdef HAVE_UNISTD_H # include /* 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 #ifdef HAVE_LIMITS_H # include #endif #ifdef HAVE_SYS_PARAM_H # include #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 # include # include # include #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 # include # define ANSI_STRING 1 #else /* No standard headers. */ # ifdef HAVE_STRING_H # include # define ANSI_STRING 1 # else # include # endif # ifdef HAVE_MEMORY_H # include # endif # ifdef HAVE_STDLIB_H # include # 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. */ #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 . */ #undef strerror #if !defined(ANSI_STRING) && !defined(__DECC) extern char *strerror PARAMS ((int errnum)); #endif #ifdef __GNUC__ # undef alloca # define alloca(n) __builtin_alloca (n) #else /* Not GCC. */ # ifdef HAVE_ALLOCA_H # include # else /* Not HAVE_ALLOCA_H. */ # ifndef _AIX extern char *alloca (); # endif /* Not AIX. */ # endif /* HAVE_ALLOCA_H. */ #endif /* GCC. */ #ifdef ST_MTIM_NSEC # if HAVE_INTTYPES_H # include # endif # define FILE_TIMESTAMP uintmax_t #else # define FILE_TIMESTAMP time_t #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 /* Add to VAR the hashing value of C, one character in a name. */ #define HASH(var, c) \ ((var += (c)), (var = ((var) << 7) + ((var) >> 20))) #ifdef HAVE_CASE_INSENSITIVE_FS /* Fold filenames */ # define HASHI(var, c) \ ((var += tolower((unsigned char)(c))), (var = ((var) << 7) + ((var) >> 20))) #else # define HASHI(var, c) HASH(var,c) #endif #if defined(__GNUC__) || defined(ENUM_BITFIELDS) # define ENUM_BITFIELD(bits) :bits #else # define ENUM_BITFIELD(bits) #endif #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 # include # 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) /* 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 ((char *)) __attribute__ ((noreturn)); extern void perror_with_name PARAMS ((char *, char *)); extern char *savestring PARAMS ((const char *, unsigned int)); extern char *concat PARAMS ((char *, char *, 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 ((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 *, char *, 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 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 #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; 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 # ifndef EXIT_FAILURE # define EXIT_FAILURE 3 # endif # ifndef EXIT_SUCCESS # define EXIT_SUCCESS 1 # endif # ifndef EXIT_TROUBLE # define EXIT_TROUBLE 2 # endif #else # ifndef EXIT_FAILURE # define EXIT_FAILURE 2 # endif # ifndef EXIT_SUCCESS # define EXIT_SUCCESS 0 # endif # ifndef EXIT_TROUBLE # define EXIT_TROUBLE 1 # endif #endif /* Set up heap debugging library dmalloc. */ #ifdef HAVE_DMALLOC_H #include #endif