gnu/usr.bin/rcs/lib/conf.h

   1 /*      $NetBSD: conf.h,v 1.11 1997/03/25 13:56:36 lukem Exp $  */
   2
   3 /* example RCS compile-time configuration */
   4
   5 /* Id: conf.heg,v 1.17 1995/06/02 18:19:00 eggert Exp */
   6
   7 /*
   8  * This example RCS compile-time configuration describes a host that conforms
   9  * to Standard C (1990) and to Posix 1003.1b-1993 with Memory Mapped Files,
  10  * and has GNU diffutils 2.7 or later.  If you can't get conf.sh to work,
  11  * copy this file to conf.h and edit conf.h by hand; see ../INSTALL.RCS.
  12  */
  13
  14 #define exitmain(n) return n /* how to exit from main() */
  15 /* #define _POSIX_C_SOURCE 2147483647L */ /* if strict C + Posix 1003.1b-1993 or later */
  16 /* #define _POSIX_SOURCE */ /* if strict C + Posix 1003.1-1990 */
  17
  18 #include <errno.h>
  19 #include <stdio.h>
  20 #include <time.h>
  21
  22 /* Comment out #include lines below that do not work.  */
  23 #include <sys/types.h>
  24 #include <sys/stat.h>
  25 #include <dirent.h>
  26 #include <fcntl.h>
  27 #include <limits.h>
  28 /* #include <mach/mach.h> */
  29 /* #include <net/errno.h> */
  30 #include <pwd.h>
  31 /* #include <siginfo.h> */
  32 #include <signal.h>
  33 #include <stdlib.h>
  34 #include <string.h>
  35 #include <sys/mman.h>
  36 #include <sys/wait.h>
  37 /* #include <ucontext.h> */
  38 #include <unistd.h>
  39 #include <utime.h>
  40 /* #include <vfork.h> */
  41
  42 /* Define boolean symbols to be 0 (false, the default), or 1 (true).  */
  43 #define has_sys_param_h 1 /* Does #include <sys/param.h> work?  */
  44 /* extern int errno; */ /* Uncomment if <errno.h> doesn't declare errno.  */
  45 #define has_readlink 1 /* Does readlink() work?  */
  46 #define readlink_isreg_errno EINVAL /* errno after readlink on regular file */
  47
  48 #if has_readlink && !defined(MAXSYMLINKS)
  49 #       if has_sys_param_h
  50 #               include <sys/param.h>
  51 #       endif
  52 #       ifndef MAXSYMLINKS
  53 #               define MAXSYMLINKS 20 /* BSD; not standard yet */
  54 #       endif
  55 #endif
  56
  57 /* Comment out the typedefs below if the types are already declared.  */
  58 /* Fix any uncommented typedefs that are wrong.  */
  59 /* typedef int mode_t; */
  60 /* typedef long off_t; */
  61 /* typedef int pid_t; */
  62 /* typedef int sig_atomic_t; */
  63 /* typedef unsigned size_t; */
  64 /* typedef int ssize_t; */
  65 /* typedef long time_t; */
  66 /* typedef int uid_t; */
  67
  68 /* Comment out the keyword definitions below if the keywords work.  */
  69 /* #define const */
  70 /* #define volatile */
  71
  72 /* Define boolean symbols to be 0 (false, the default), or 1 (true).  */
  73 #define has_prototypes 1 /* Do function prototypes work?  */
  74 #define has_stdarg 1 /* Does <stdarg.h> work?  */
  75 /* #define has_varargs ? */ /* Does <varargs.h> work?  */
  76 #define va_start_args 2 /* How many args does va_start() take?  */
  77
  78 #if O_BINARY
  79         /* Text and binary i/o behave differently.  */
  80         /* This is incompatible with Posix and Unix.  */
  81 #       define FOPEN_RB "rb"
  82 #       define FOPEN_R_WORK (Expand==BINARY_EXPAND ? "r" : "rb")
  83 #       define FOPEN_WB "wb"
  84 #       define FOPEN_W_WORK (Expand==BINARY_EXPAND ? "w" : "wb")
  85 #       define FOPEN_WPLUS_WORK (Expand==BINARY_EXPAND ? "w+" : "w+b")
  86 #       define OPEN_O_BINARY O_BINARY
  87 #else
  88         /*
  89         * Text and binary i/o behave the same.
  90         * Omit "b", since some nonstandard hosts reject it.
  91         */
  92 #       define FOPEN_RB "r"
  93 #       define FOPEN_R_WORK "r"
  94 #       define FOPEN_WB "w"
  95 #       define FOPEN_W_WORK "w"
  96 #       define FOPEN_WPLUS_WORK "w+"
  97 #       define OPEN_O_BINARY 0
  98 #endif
  99
 100 /* This may need changing on non-Unix systems (notably DOS).  */
 101 #define OPEN_CREAT_READONLY (S_IRUSR|S_IRGRP|S_IROTH) /* lock file mode */
 102 #define OPEN_O_LOCK 0 /* extra open flags for creating lock file */
 103 #define OPEN_O_WRONLY O_WRONLY /* main open flag for creating a lock file */
 104
 105 /* Define or comment out the following symbols as needed.  */
 106 #if has_prototypes
 107 #       define P(params) params
 108 #else
 109 #       define P(params) ()
 110 #endif
 111 #if has_stdarg
 112 #       include <stdarg.h>
 113 #else
 114 #       if has_varargs
 115 #               include <varargs.h>
 116 #       else
 117                 typedef char *va_list;
 118 #               define va_dcl int va_alist;
 119 #               define va_start(ap) ((ap) = (va_list)&va_alist)
 120 #               define va_arg(ap,t) (((t*) ((ap)+=sizeof(t)))  [-1])
 121 #               define va_end(ap)
 122 #       endif
 123 #endif
 124 #if va_start_args == 2
 125 #       define vararg_start va_start
 126 #else
 127 #       define vararg_start(ap,p) va_start(ap)
 128 #endif
 129 #define bad_chmod_close 0 /* Can chmod() close file descriptors?  */
 130 #define bad_creat0 0 /* Do writes fail after creat(f,0)?  */
 131 #define bad_fopen_wplus 0 /* Does fopen(f,"w+") fail to truncate f?  */
 132 #define getlogin_is_secure 0 /* Is getlogin() secure?  Usually it's not.  */
 133 #define has_attribute_noreturn 1 /* Does __attribute__((noreturn)) work?  */
 134 #if has_attribute_noreturn
 135 #       define exiting __attribute__((noreturn))
 136 #else
 137 #       define exiting
 138 #endif
 139 #define has_dirent 1 /* Do opendir(), readdir(), closedir() work?  */
 140 #define void_closedir 0 /* Does closedir() yield void?  */
 141 #define has_fchmod 1 /* Does fchmod() work?  */
 142 #define has_fflush_input 0 /* Does fflush() work on input files?  */
 143 #define has_fputs 1 /* Does fputs() work?  */
 144 #define has_ftruncate 1 /* Does ftruncate() work?  */
 145 #define has_getuid 1 /* Does getuid() work?  */
 146 #define has_getpwuid 1 /* Does getpwuid() work?  */
 147 #define has_memcmp 1 /* Does memcmp() work?  */
 148 #define has_memcpy 1 /* Does memcpy() work?  */
 149 #define has_memmove 1 /* Does memmove() work?  */
 150 #define has_map_fd 0 /* Does map_fd() work?  */
 151 #define has_mmap 1 /* Does mmap() work on regular files?  */
 152 #define has_madvise 0 /* Does madvise() work?  */
 153 #define mmap_signal SIGBUS /* signal received if you reference nonexistent part of mmapped file */
 154 #define has_rename 1 /* Does rename() work?  */
 155 #define bad_a_rename 0 /* Does rename(A,B) fail if A is unwritable?  */
 156 #define bad_b_rename 0 /* Does rename(A,B) fail if B is unwritable?  */
 157 #define bad_NFS_rename 0 /* Can rename(A,B) falsely report success?  */
 158 /* typedef int void; */ /* Some ancient compilers need this.  */
 159 #define VOID (void) /* 'VOID e;' discards the value of an expression 'e'.  */
 160 #define has_seteuid 1 /* Does seteuid() work?  See ../INSTALL.RCS.  */
 161 #define has_setreuid 0 /* Does setreuid() work?  See ../INSTALL.RCS.  */
 162 #define has_setuid 1 /* Does setuid() exist?  */
 163 #define has_sigaction 1 /* Does struct sigaction work?  */
 164 #define has_sa_sigaction 1 /* Does struct sigaction have sa_sigaction?  */
 165 #define has_signal 1 /* Does signal() work?  */
 166 #define signal_type void /* type returned by signal handlers */
 167 #define sig_zaps_handler 0 /* Must a signal handler reinvoke signal()?  */
 168 /* #define has_sigblock ? */ /* Does sigblock() work?  */
 169 /* #define sigmask(s) (1 << ((s)-1)) */ /* Yield mask for signal number.  */
 170 typedef size_t fread_type; /* type returned by fread() and fwrite() */
 171 typedef size_t freadarg_type; /* type of their size arguments */
 172 typedef void *malloc_type; /* type returned by malloc() */
 173 #define has_getcwd 1 /* Does getcwd() work?  */
 174 /* #define has_getwd ? */ /* Does getwd() work?  */
 175 #define needs_getabsname 0 /* Must we define getabsname?  */
 176 #define has_mktemp 1 /* Does mktemp() work?  */
 177 #define has_mkstemp 1 /* Does mkstemp() work? (needs has_mktemp=1 too) */
 178 #define has_NFS 1 /* Might NFS be used?  */
 179 #define has_psiginfo 0 /* Does psiginfo() work?  */
 180 #define has_psignal 1 /* Does psignal() work?  */
 181 /* #define has_si_errno ? */ /* Does siginfo_t have si_errno?  */
 182 /* #define has_sys_siglist ? */ /* Does sys_siglist[] work?  */
 183 /* #define strchr index */ /* Use old-fashioned name for strchr()?  */
 184 /* #define strrchr rindex */ /* Use old-fashioned name for strrchr()?  */
 185 #define bad_unlink 0 /* Does unlink() fail on unwritable files?  */
 186 #define has_vfork 1 /* Does vfork() work?  */
 187 #define has_fork 1 /* Does fork() work?  */
 188 #define has_spawn 0 /* Does spawn*() work?  */
 189 #define has_waitpid 1 /* Does waitpid() work?  */
 190 #define bad_wait_if_SIGCHLD_ignored 0 /* Does ignoring SIGCHLD break wait()?  */
 191 #define RCS_SHELL "/bin/sh" /* shell to run RCS subprograms */
 192 #define has_printf_dot 1 /* Does "%.2d" print leading 0?  */
 193 #define has_vfprintf 1 /* Does vfprintf() work?  */
 194 #define has_attribute_format_printf 1 /* Does __attribute__((format(printf,N,N+1))) work?  */
 195 #if has_attribute_format_printf
 196 #       define printf_string(m, n) __attribute__((format(printf, m, n)))
 197 #else
 198 #       define printf_string(m, n)
 199 #endif
 200 #if has_attribute_format_printf && has_attribute_noreturn
 201         /* Work around a bug in GCC 2.5.x.  */
 202 #       define printf_string_exiting(m, n) __attribute__((format(printf, m, n), noreturn))
 203 #else
 204 #       define printf_string_exiting(m, n) printf_string(m, n) exiting
 205 #endif
 206 /* #define has__doprintf ? */ /* Does _doprintf() work?  */
 207 /* #define has__doprnt ? */ /* Does _doprnt() work?  */
 208 /* #undef EXIT_FAILURE */ /* Uncomment this if EXIT_FAILURE is broken.  */
 209 #define large_memory 1 /* Can main memory hold entire RCS files?  */
 210 #ifndef LONG_MAX
 211 #define LONG_MAX 2147483647L /* long maximum */
 212 #endif
 213 /* Do struct stat s and t describe the same file?  Answer d if unknown.  */
 214 #define same_file(s,t,d) ((s).st_ino==(t).st_ino && (s).st_dev==(t).st_dev)
 215 #define has_utimbuf 1 /* Does struct utimbuf work?  */
 216 #define CO "/usr/bin/co" /* name of 'co' program */
 217 #define COMPAT2 0 /* Are version 2 files supported?  */
 218 #define DIFF "/usr/bin/diff" /* name of 'diff' program */
 219 #define DIFF3 "/usr/bin/diff3" /* name of 'diff3' program */
 220 #define DIFF3_BIN 1 /* Is diff3 user-visible (not the /usr/lib auxiliary)?  */
 221 #define DIFFFLAGS "-an" /* Make diff output suitable for RCS.  */
 222 #define DIFF_L 1 /* Does diff -L work?  */
 223 #define DIFF_SUCCESS 0 /* DIFF status if no differences are found */
 224 #define DIFF_FAILURE 1 /* DIFF status if differences are found */
 225 #define DIFF_TROUBLE 2 /* DIFF status if trouble */
 226 #define ED "/bin/ed" /* name of 'ed' program (used only if !DIFF3_BIN) */
 227 #define MERGE "/usr/bin/merge" /* name of 'merge' program */
 228 #define TMPDIR "/tmp" /* default directory for temporary files */
 229 #define SLASH '/' /* principal filename separator */
 230 #define SLASHes '/' /* `case SLASHes:' labels all filename separators */
 231 #define isSLASH(c) ((c) == SLASH) /* Is arg a filename separator?  */
 232 #define ROOTPATH(p) isSLASH((p)[0]) /* Is p an absolute pathname?  */
 233 #define X_DEFAULT ",v/" /* default value for -x option */
 234 #define SLASHSLASH_is_SLASH 1 /* Are // and / the same directory?  */
 235 #define ALL_ABSOLUTE 1 /* Do all subprograms satisfy ROOTPATH?  */
 236 #define DIFF_ABSOLUTE 1 /* Is ROOTPATH(DIFF) true?  */
 237 #define SENDMAIL "/usr/bin/mail" /* how to send mail */
 238 #define TZ_must_be_set 0 /* Must TZ be set for gmtime() to work?  */
 239
 240
 241
 242 /* Adjust the following declarations as needed.  */
 243
 244
 245 /* The rest is for the benefit of non-standard, traditional hosts.  */
 246 /* Don't bother to declare functions that in traditional hosts do not appear, */
 247 /* or are declared in .h files, or return int or void.  */
 248
 249
 250 /* traditional BSD */
 251
 252 #if has_sys_siglist && !defined(sys_siglist)
 253         extern char const * const sys_siglist[];
 254 #endif
 255
 256
 257 /* Posix (ISO/IEC 9945-1: 1990 / IEEE Std 1003.1-1990) */
 258
 259 /* <fcntl.h> */
 260 #ifdef O_CREAT
 261 #       define open_can_creat 1
 262 #else
 263 #       define open_can_creat 0
 264 #       define O_RDONLY 0
 265 #       define O_WRONLY 1
 266 #       define O_RDWR 2
 267 #       define O_CREAT 01000
 268 #       define O_TRUNC 02000
 269 #endif
 270 #ifndef O_EXCL
 271 #define O_EXCL 0
 272 #endif
 273
 274 /* <sys/stat.h> */
 275 #ifndef S_IRUSR
 276 #       ifdef S_IREAD
 277 #               define S_IRUSR S_IREAD
 278 #       else
 279 #               define S_IRUSR 0400
 280 #       endif
 281 #       ifdef S_IWRITE
 282 #               define S_IWUSR S_IWRITE
 283 #       else
 284 #               define S_IWUSR (S_IRUSR/2)
 285 #       endif
 286 #endif
 287 #ifndef S_IRGRP
 288 #       if has_getuid
 289 #               define S_IRGRP (S_IRUSR / 0010)
 290 #               define S_IWGRP (S_IWUSR / 0010)
 291 #               define S_IROTH (S_IRUSR / 0100)
 292 #               define S_IWOTH (S_IWUSR / 0100)
 293 #       else
 294                 /* single user OS -- not Posix or Unix */
 295 #               define S_IRGRP 0
 296 #               define S_IWGRP 0
 297 #               define S_IROTH 0
 298 #               define S_IWOTH 0
 299 #       endif
 300 #endif
 301 #ifndef S_ISREG
 302 #define S_ISREG(n) (((n) & S_IFMT) == S_IFREG)
 303 #endif
 304
 305 /* <sys/wait.h> */
 306 #ifndef WEXITSTATUS
 307 #define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8)
 308 #undef WIFEXITED /* Avoid 4.3BSD incompatibility with Posix.  */
 309 #endif
 310 #ifndef WIFEXITED
 311 #define WIFEXITED(stat_val) (((stat_val)  &  0377) == 0)
 312 #endif
 313 #ifndef WTERMSIG
 314 #define WTERMSIG(stat_val) ((stat_val) & 0177)
 315 #undef WIFSIGNALED /* Avoid 4.3BSD incompatibility with Posix.  */
 316 #endif
 317 #ifndef WIFSIGNALED
 318 #define WIFSIGNALED(stat_val) ((unsigned)(stat_val) - 1  <  0377)
 319 #endif
 320
 321 /* <unistd.h> */
 322 char *getlogin P((void));
 323 #ifndef STDIN_FILENO
 324 #       define STDIN_FILENO 0
 325 #       define STDOUT_FILENO 1
 326 #       define STDERR_FILENO 2
 327 #endif
 328 #if has_fork && !has_vfork
 329 #       undef vfork
 330 #       define vfork fork
 331 #endif
 332 #if has_getcwd || !has_getwd
 333         char *getcwd P((char*,size_t));
 334 #else
 335         char *getwd P((char*));
 336 #endif
 337 #if has_setuid && !has_seteuid
 338 #       undef seteuid
 339 #       define seteuid setuid
 340 #endif
 341 #if has_spawn
 342 #       if ALL_ABSOLUTE
 343 #               define spawn_RCS spawnv
 344 #       else
 345 #               define spawn_RCS spawnvp
 346 #       endif
 347 #else
 348 #       if ALL_ABSOLUTE
 349 #               define exec_RCS execv
 350 #       else
 351 #               define exec_RCS execvp
 352 #       endif
 353 #endif
 354
 355 /* utime.h */
 356 #if !has_utimbuf
 357         struct utimbuf { time_t actime, modtime; };
 358 #endif
 359
 360
 361 /* Standard C library */
 362
 363 /* <stdio.h> */
 364 #ifndef L_tmpnam
 365 #define L_tmpnam 32 /* power of 2 > sizeof("/usr/tmp/xxxxxxxxxxxxxxx") */
 366 #endif
 367 #ifndef SEEK_SET
 368 #define SEEK_SET 0
 369 #endif
 370 #ifndef SEEK_CUR
 371 #define SEEK_CUR 1
 372 #endif
 373 #if has_mktemp
 374         char *mktemp P((char*)); /* traditional */
 375 #else
 376         char *tmpnam P((char*));
 377 #endif
 378
 379 /* <stdlib.h> */
 380 char *getenv P((char const*));
 381 #ifndef __NetBSD__
 382 void _exit P((int)) exiting;
 383 void exit P((int)) exiting;
 384 #endif
 385 malloc_type malloc P((size_t));
 386 malloc_type realloc P((malloc_type,size_t));
 387 #ifndef EXIT_FAILURE
 388 #define EXIT_FAILURE 1
 389 #endif
 390 #ifndef EXIT_SUCCESS
 391 #define EXIT_SUCCESS 0
 392 #endif
 393
 394 /* <string.h> */
 395 char *strcpy P((char*,char const*));
 396 char *strchr P((char const*,int));
 397 char *strrchr P((char const*,int));
 398 void *memcpy P((void*,void const*,size_t));
 399 #if has_memmove
 400         void *memmove P((void*,void const*,size_t));
 401 #endif
 402
 403 /* <time.h> */
 404 time_t time P((time_t*));