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