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