make.h

   1 /* Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993
   2         Free Software Foundation, Inc.
   3 This file is part of GNU Make.
   4
   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)
   8 any later version.
   9
  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.
  14
  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, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  18
  19 /* AIX requires this to be the first thing in the file.  */
  20 #if defined (_AIX) && !defined (__GNUC__)
  21  #pragma alloca
  22 #endif
  23
  24 /* We use <config.h> instead of "config.h" so that a compilation
  25    using -I. -I$srcdir will use ./config.h rather than $srcdir/config.h
  26    (which it would do because make.h was found in $srcdir).  */
  27 #include <config.h>
  28 #undef  HAVE_CONFIG_H
  29 #define HAVE_CONFIG_H
  30
  31 #ifdef  CRAY
  32 /* This must happen before #include <signal.h> so
  33    that the declaration therein is changed.  */
  34 #define signal  bsdsignal
  35 #endif
  36
  37 #define _GNU_SOURCE
  38 #include <sys/types.h>
  39 #include <sys/stat.h>
  40 #include <signal.h>
  41 #include <stdio.h>
  42 #include <ctype.h>
  43 #include <time.h>
  44 #include <errno.h>
  45
  46 #ifndef errno
  47 extern int errno;
  48 #endif
  49
  50 #ifndef isblank
  51 #define isblank(c)      ((c) == ' ' || (c) == '\t')
  52 #endif
  53
  54 #ifdef  HAVE_UNISTD_H
  55 #include <unistd.h>
  56 #ifdef  _POSIX_VERSION
  57 #define POSIX
  58 #endif
  59 #endif
  60
  61 /* Some systems define _POSIX_VERSION but are not really POSIX.1.  */
  62 #if (defined (butterfly) || \
  63      (defined (__mips) && defined (_SYSTYPE_SVR3)) || \
  64      (defined (sequent) && defined (i386)))
  65 #undef POSIX
  66 #endif
  67
  68 #if !defined (HAVE_SYS_SIGLIST) && defined (HAVE__SYS_SIGLIST)
  69 #define sys_siglist     _sys_siglist
  70 #define HAVE_SYS_SIGLIST        /* Now we have it.  */
  71
  72 /* It was declared in <signal.h>, with who knows what type.
  73    Don't declare it again and risk conflicting.  */
  74 #define SYS_SIGLIST_DECLARED
  75 #endif
  76
  77 #ifdef HAVE_SYS_SIGLIST
  78 #ifndef SYS_SIGLIST_DECLARED
  79 extern char *sys_siglist[];
  80 #endif
  81 #else
  82 #include "signame.h"
  83 #endif
  84
  85 /* Some systems do not define NSIG in <signal.h>.  */
  86 #ifndef NSIG
  87 #ifdef  _NSIG
  88 #define NSIG    _NSIG
  89 #else
  90 #define NSIG    32
  91 #endif
  92 #endif
  93
  94 #ifndef RETSIGTYPE
  95 #define RETSIGTYPE      void
  96 #endif
  97
  98 #ifndef sigmask
  99 #define sigmask(sig)    (1 << ((sig) - 1))
 100 #endif
 101
 102 #ifdef  HAVE_LIMITS_H
 103 #include <limits.h>
 104 #endif
 105 #ifdef  HAVE_SYS_PARAM_H
 106 #include <sys/param.h>
 107 #endif
 108
 109 #ifndef PATH_MAX
 110 #ifndef POSIX
 111 #define PATH_MAX        MAXPATHLEN
 112 #endif  /* Not POSIX.  */
 113 #endif  /* No PATH_MAX.  */
 114 #ifndef MAXPATHLEN
 115 #define MAXPATHLEN 1024
 116 #endif  /* No MAXPATHLEN.  */
 117
 118 #ifdef  PATH_MAX
 119 #define GET_PATH_MAX    PATH_MAX
 120 #define PATH_VAR(var)   char var[PATH_MAX]
 121 #else
 122 #define NEED_GET_PATH_MAX
 123 extern unsigned int get_path_max ();
 124 #define GET_PATH_MAX    (get_path_max ())
 125 #define PATH_VAR(var)   char *var = (char *) alloca (GET_PATH_MAX)
 126 #endif
 127
 128 #ifdef  STAT_MACROS_BROKEN
 129 #ifdef  S_ISREG
 130 #undef  S_ISREG
 131 #endif
 132 #ifdef  S_ISDIR
 133 #undef  S_ISDIR
 134 #endif
 135 #endif  /* STAT_MACROS_BROKEN.  */
 136
 137 #ifndef S_ISREG
 138 #define S_ISREG(mode)   (((mode) & S_IFMT) == S_IFREG)
 139 #endif
 140 #ifndef S_ISDIR
 141 #define S_ISDIR(mode)   (((mode) & S_IFMT) == S_IFDIR)
 142 #endif
 143
 144
 145 #if     (defined (STDC_HEADERS) || defined (__GNU_LIBRARY__))
 146 #include <stdlib.h>
 147 #include <string.h>
 148 #define ANSI_STRING
 149 #else   /* No standard headers.  */
 150
 151 #ifdef HAVE_STRING_H
 152 #include <string.h>
 153 #define ANSI_STRING
 154 #else
 155 #include <strings.h>
 156 #endif
 157 #ifdef  HAVE_MEMORY_H
 158 #include <memory.h>
 159 #endif
 160
 161 extern char *malloc (), *realloc ();
 162 extern void free ();
 163
 164 extern void qsort ();
 165 extern void abort (), exit ();
 166
 167 #endif  /* Standard headers.  */
 168
 169 #ifdef  ANSI_STRING
 170
 171 #ifndef index
 172 #define index(s, c)     strchr((s), (c))
 173 #endif
 174 #ifndef rindex
 175 #define rindex(s, c)    strrchr((s), (c))
 176 #endif
 177
 178 #ifndef bcmp
 179 #define bcmp(s1, s2, n) memcmp ((s1), (s2), (n))
 180 #endif
 181 #ifndef bzero
 182 #define bzero(s, n)     memset ((s), 0, (n))
 183 #endif
 184 #ifndef bcopy
 185 #define bcopy(s, d, n)  memcpy ((d), (s), (n))
 186 #endif
 187
 188 #else   /* Not ANSI_STRING.  */
 189
 190 #ifndef bcmp
 191 extern int bcmp ();
 192 #endif
 193 #ifndef bzero
 194 extern void bzero ();
 195 #endif
 196 #ifndef bcopy
 197 extern void bcopy ();
 198 #endif
 199
 200 #endif  /* ANSI_STRING.  */
 201 #undef  ANSI_STRING
 202
 203
 204 #ifdef  __GNUC__
 205 #undef  alloca
 206 #define alloca(n)       __builtin_alloca (n)
 207 #else   /* Not GCC.  */
 208 #ifdef  HAVE_ALLOCA_H
 209 #include <alloca.h>
 210 #else   /* Not HAVE_ALLOCA_H.  */
 211 #ifndef _AIX
 212 extern char *alloca ();
 213 #endif  /* Not AIX.  */
 214 #endif  /* HAVE_ALLOCA_H.  */
 215 #endif  /* GCC.  */
 216
 217 #ifndef iAPX286
 218 #define streq(a, b) \
 219   ((a) == (b) || \
 220    (*(a) == *(b) && (*(a) == '\0' || !strcmp ((a) + 1, (b) + 1))))
 221 #else
 222 /* Buggy compiler can't handle this.  */
 223 #define streq(a, b) (strcmp ((a), (b)) == 0)
 224 #endif
 225
 226 /* Add to VAR the hashing value of C, one character in a name.  */
 227 #define HASH(var, c) \
 228   ((var += (c)), (var = ((var) << 7) + ((var) >> 20)))
 229
 230 #if defined(__GNUC__) || defined(ENUM_BITFIELDS)
 231 #define ENUM_BITFIELD(bits)     :bits
 232 #else
 233 #define ENUM_BITFIELD(bits)
 234 #endif
 235
 236 extern void die ();
 237 extern void message (), fatal (), error ();
 238 extern void makefile_error (), makefile_fatal ();
 239 extern void pfatal_with_name (), perror_with_name ();
 240 extern char *savestring (), *concat ();
 241 extern char *xmalloc (), *xrealloc ();
 242 extern char *find_next_token (), *next_token (), *end_of_token ();
 243 extern void collapse_continuations (), remove_comments ();
 244 extern char *sindex (), *lindex ();
 245 extern int alpha_compare ();
 246 extern void print_spaces ();
 247 extern struct dep *copy_dep_chain ();
 248 extern char *find_percent ();
 249
 250 #ifndef NO_ARCHIVES
 251 extern int ar_name ();
 252 extern void ar_parse_name ();
 253 extern int ar_touch ();
 254 extern time_t ar_member_date ();
 255 #endif
 256
 257 extern void dir_load ();
 258 extern int dir_file_exists_p (), file_exists_p (), file_impossible_p ();
 259 extern void file_impossible ();
 260 extern char *dir_name ();
 261
 262 extern void define_default_variables ();
 263 extern void set_default_suffixes (), install_default_implicit_rules ();
 264 extern void convert_to_pattern (), count_implicit_rule_limits ();
 265 extern void create_pattern_rule ();
 266
 267 extern void build_vpath_lists (), construct_vpath_list ();
 268 extern int vpath_search ();
 269
 270 extern void construct_include_path ();
 271 extern void uniquize_deps ();
 272
 273 extern int update_goal_chain ();
 274 extern void notice_finished_file ();
 275
 276 extern void user_access (), make_access (), child_access ();
 277
 278
 279 #ifdef  HAVE_VFORK_H
 280 #include <vfork.h>
 281 #endif
 282
 283 #if !defined (__GNU_LIBRARY__) && !defined (POSIX)
 284
 285 #ifdef  HAVE_SIGSETMASK
 286 extern int sigsetmask ();
 287 extern int sigblock ();
 288 #endif
 289 extern int kill ();
 290 extern int atoi ();
 291 extern long int atol ();
 292 extern int unlink (), stat (), fstat ();
 293 extern int pipe (), close (), read (), write (), open ();
 294 extern long int lseek ();
 295
 296 #endif  /* Not GNU C library or POSIX.  */
 297
 298 #ifdef  HAVE_GETCWD
 299 extern char *getcwd ();
 300 #else
 301 extern char *getwd ();
 302 #define getcwd(buf, len)        getwd (buf)
 303 #endif
 304
 305 extern char **environ;
 306
 307 extern char *reading_filename;
 308 extern unsigned int *reading_lineno_ptr;
 309
 310 extern int just_print_flag, silent_flag, ignore_errors_flag, keep_going_flag;
 311 extern int debug_flag, print_data_base_flag, question_flag, touch_flag;
 312 extern int env_overrides, no_builtin_rules_flag, print_version_flag;
 313 extern int print_directory_flag, warn_undefined_variables_flag;
 314
 315 extern unsigned int job_slots;
 316 extern double max_load_average;
 317
 318 extern char *program;
 319 extern char *starting_directory;
 320 extern unsigned int makelevel;
 321
 322 extern unsigned int commands_started;
 323
 324 extern int handling_fatal_signal;
 325
 326
 327 #define DEBUGPR(msg) \
 328   do if (debug_flag) { print_spaces (depth); printf (msg, file->name); \
 329                        fflush (stdout); } while (0)