2 !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
3 This file is built by metaconfig.
5 This file contains a description of all the shell variables whose value is
6 determined by the Configure script. Variables intended for use in C
7 programs (e.g. I_UNISTD) are already described in config_h.SH. [`configpm'
8 generates pod documentation for Config.pm from this file--please try to keep
9 the formatting regular.]
12 This variable defines the extension used for ordinary library files.
13 For unix, it is '.a'. The '.' is included. Other possible
14 values include '.lib'.
17 This variable defines the extension used for executable files.
18 DJGPP, Cygwin and OS/2 use '.exe'. Stratus VOS uses '.pm'.
19 On operating systems which do not require a specific extension
20 for executable files, this variable is empty.
23 This variable defines the extension used for object files.
24 For unix, it is '.o'. The '.' is included. Other possible
25 values include '.obj'.
28 This variable is set to 'true' if AFS (Andrew File System) is used
29 on the system, 'false' otherwise. It is possible to override this
30 with a hint value or command line option, but you'd better know
34 This variable is by default set to '/afs'. In the unlikely case
35 this is not the correct root, it is possible to override this with
36 a hint value or command line option. This will be used in subsequent
37 tests for AFSness in the configure and test process.
39 alignbytes (alignbytes.U):
40 This variable holds the number of bytes required to align a
41 double-- or a long double when applicable. Usual values are
42 2, 4 and 8. The default is eight, for safety.
44 ansi2knr (ansi2knr.U):
45 This variable is set if the user needs to run ansi2knr.
46 Currently, this is not supported, so we just abort.
48 aphostname (d_gethname.U):
49 This variable contains the command which can be used to compute the
50 host name. The command is fully qualified by its absolute path, to make
51 it safe when used by a process with super-user privileges.
53 api_revision (patchlevel.U):
54 The three variables, api_revision, api_version, and
55 api_subversion, specify the version of the oldest perl binary
56 compatible with the present perl. In a full version string
57 such as '5.6.1', api_revision is the '5'.
58 Prior to 5.5.640, the format was a floating point number,
61 perl.c:incpush() and lib/lib.pm will automatically search in
62 $sitelib/.. for older directories back to the limit specified
63 by these api_ variables. This is only useful if you have a
64 perl library directory tree structured like the default one.
65 See INSTALL for how this works. The versioned site_perl
66 directory was introduced in 5.005, so that is the lowest
67 possible value. The version list appropriate for the current
68 system is determined in inc_version_list.U.
70 XXX To do: Since compatibility can depend on compile time
71 options (such as bincompat, longlong, etc.) it should
72 (perhaps) be set by Configure, but currently it isn't.
73 Currently, we read a hard-wired value from patchlevel.h.
74 Perhaps what we ought to do is take the hard-wired value from
75 patchlevel.h but then modify it if the current Configure
76 options warrant. patchlevel.h then would use an #ifdef guard.
78 api_subversion (patchlevel.U):
79 The three variables, api_revision, api_version, and
80 api_subversion, specify the version of the oldest perl binary
81 compatible with the present perl. In a full version string
82 such as '5.6.1', api_subversion is the '1'. See api_revision for
85 api_version (patchlevel.U):
86 The three variables, api_revision, api_version, and
87 api_subversion, specify the version of the oldest perl binary
88 compatible with the present perl. In a full version string
89 such as '5.6.1', api_version is the '6'. See api_revision for
90 full details. As a special case, 5.5.0 is rendered in the
91 old-style as 5.005. (In the 5.005_0x maintenance series,
92 this was the only versioned directory in $sitelib.)
94 api_versionstring (patchlevel.U):
95 This variable combines api_revision, api_version, and
96 api_subversion in a format such as 5.6.1 (or 5_6_1) suitable
97 for use as a directory name. This is filesystem dependent.
100 This variable is used internally by Configure to determine the
101 full pathname (if any) of the ar program. After Configure runs,
102 the value is reset to a plain "ar" and is not useful.
105 This variable holds the name of the directory in which the user wants
106 to put architecture-dependent public library files for $package.
107 It is most often a local directory such as /usr/local/lib.
108 Programs using this variable must be prepared to deal
109 with filename expansion.
111 archlibexp (archlib.U):
112 This variable is the same as the archlib variable, but is
113 filename expanded at configuration time, for convenient use.
115 archname (archname.U):
116 This variable is a short name to characterize the current
117 architecture. It is used mainly to construct the default archlib.
119 archname64 (use64bits.U):
120 This variable is used for the 64-bitness part of $archname.
123 This variable defines any additional objects that must be linked
124 in with the program on this architecture. On unix, it is usually
125 empty. It is typically used to include emulations of unix calls
126 or other facilities. For perl on OS/2, for example, this would
129 asctime_r_proto (d_asctime_r.U):
130 This variable encodes the prototype of asctime_r.
131 It is zero if d_asctime_r is undef, and one of the
132 REENTRANT_PROTO_T_ABC macros of reentr.h if d_asctime_r
136 This variable is used internally by Configure to determine the
137 full pathname (if any) of the awk program. After Configure runs,
138 the value is reset to a plain "awk" and is not useful.
141 The base revision level of this package, from the .package file.
144 This variable is defined but not used by Configure.
145 The value is the empty string and is not useful.
148 This variable holds the name of the directory in which the user wants
149 to put publicly executable images for the package in question. It
150 is most often a local directory such as /usr/local/bin. Programs using
151 this variable must be prepared to deal with ~name substitution.
154 This variable saves the result from configure if generated binaries
155 are in ELF format. Only set to defined when the test has actually
156 been performed, and the result was positive.
159 This is the same as the bin variable, but is filename expanded at
160 configuration time, for use in your makefiles.
163 This variable is used internally by Configure to determine the
164 full pathname (if any) of the bison program. After Configure runs,
165 the value is reset to a plain "bison" and is not useful.
168 This variable is used internally by Configure to determine the
169 full pathname (if any) of the byacc program. After Configure runs,
170 the value is reset to a plain "byacc" and is not useful.
172 byteorder (byteorder.U):
173 This variable holds the byte order in a UV. In the following,
174 larger digits indicate more significance. The variable byteorder
175 is either 4321 on a big-endian machine, or 1234 on a little-endian,
176 or 87654321 on a Cray ... or 3412 with weird order !
179 This variable contains the \c string if that is what causes the echo
180 command to suppress newline. Otherwise it is null. Correct usage is
181 $echo $n "prompt for a question: $c".
183 castflags (d_castneg.U):
184 This variable contains a flag that precise difficulties the
185 compiler has casting odd floating values to unsigned long:
187 1 = couldn't cast < 0
188 2 = couldn't cast >= 0x80000000
189 4 = couldn't cast in argument expression list
192 This variable is used internally by Configure to determine the
193 full pathname (if any) of the cat program. After Configure runs,
194 the value is reset to a plain "cat" and is not useful.
197 This variable holds the name of a command to execute a C compiler which
198 can resolve multiple global references that happen to have the same
199 name. Usual values are 'cc' and 'gcc'.
200 Fervent ANSI compilers may be called 'c89'. AIX has xlc.
202 cccdlflags (dlsrc.U):
203 This variable contains any special flags that might need to be
204 passed with 'cc -c' to compile modules to be used to create a shared
205 library that will be used for dynamic loading. For hpux, this
206 should be +z. It is up to the makefile to use it.
209 This variable contains any special flags that might need to be
210 passed to cc to link with a shared library for dynamic loading.
211 It is up to the makefile to use it. For sunos 4.1, it should
215 This variable contains any additional C compiler flags desired by
216 the user. It is up to the Makefile to use this.
218 ccflags_uselargefiles (uselfs.U):
219 This variable contains the compiler flags needed by large file builds
220 and added to ccflags by hints files.
223 This can set either by hints files or by Configure. If using
224 gcc, this is gcc, and if not, usually equal to cc, unimpressive, no?
225 Some platforms, however, make good use of this by storing the
226 flavor of the C compiler being used here. For example if using
227 the Sun WorkShop suite, ccname will be 'workshop'.
229 ccsymbols (Cppsym.U):
230 The variable contains the symbols defined by the C compiler alone.
231 The symbols defined by cpp or by cc when it calls cpp are not in
232 this list, see cppsymbols and cppccsymbols.
233 The list is a space-separated list of symbol=value tokens.
235 ccversion (Checkcc.U):
236 This can set either by hints files or by Configure. If using
237 a (non-gcc) vendor cc, this variable may contain a version for
241 Login name of the person who ran the Configure script and answered the
242 questions. This is used to tag both config.sh and config_h.SH.
244 cf_email (cf_email.U):
245 Electronic mail address of the person who ran Configure. This can be
246 used by units that require the user's e-mail, like MailList.U.
249 Holds the output of the "date" command when the configuration file was
250 produced. This is used to tag both config.sh and config_h.SH.
252 charbits (charsize.U):
253 This variable contains the value of the CHARBITS symbol, which
254 indicates to the C program how many bits there are in a character.
256 charsize (charsize.U):
257 This variable contains the value of the CHARSIZE symbol, which
258 indicates to the C program how many bytes there are in a character.
261 This variable is defined but not used by Configure.
262 The value is the empty string and is not useful.
265 This variable is used internally by Configure to determine the
266 full pathname (if any) of the chmod program. After Configure runs,
267 the value is reset to a plain "chmod" and is not useful.
270 This variable is defined but not used by Configure.
271 The value is the empty string and is not useful.
273 clocktype (d_times.U):
274 This variable holds the type returned by times(). It can be long,
275 or clock_t on BSD sites (in which case <sys/types.h> should be
279 This variable is used internally by Configure to determine the
280 full pathname (if any) of the comm program. After Configure runs,
281 the value is reset to a plain "comm" and is not useful.
284 This variable is defined but not used by Configure.
285 The value is the empty string and is not useful.
287 config_arg0 (Options.U):
288 This variable contains the string used to invoke the Configure
289 command, as reported by the shell in the $0 variable.
291 config_argc (Options.U):
292 This variable countains the number of command-line arguments
293 passed to Configure, as reported by the shell in the $# variable.
294 The individual arguments are stored as variables config_argc1,
297 config_args (Options.U):
298 This variable contains a single string giving the command-line
299 arguments passed to Configure. Spaces within arguments,
300 quotes, and escaped characters are not correctly preserved.
301 To reconstruct the command line, you must assemble the individual
302 command line pieces, given in config_arg[0-9]*.
304 contains (contains.U):
305 This variable holds the command to do a grep with a proper return
306 status. On most sane systems it is simply "grep". On insane systems
307 it is a grep followed by a cat followed by a test. This variable
308 is primarily for the use of other Configure units.
311 This variable is used internally by Configure to determine the
312 full pathname (if any) of the cp program. After Configure runs,
313 the value is reset to a plain "cp" and is not useful.
316 This variable is defined but not used by Configure.
317 The value is the empty string and is not useful.
320 This variable is used internally by Configure to determine the
321 full pathname (if any) of the cpp program. After Configure runs,
322 the value is reset to a plain "cpp" and is not useful.
324 cpp_stuff (cpp_stuff.U):
325 This variable contains an identification of the concatenation mechanism
326 used by the C preprocessor.
328 cppccsymbols (Cppsym.U):
329 The variable contains the symbols defined by the C compiler
330 when it calls cpp. The symbols defined by the cc alone or cpp
331 alone are not in this list, see ccsymbols and cppsymbols.
332 The list is a space-separated list of symbol=value tokens.
334 cppflags (ccflags.U):
335 This variable holds the flags that will be passed to the C pre-
336 processor. It is up to the Makefile to use it.
338 cpplast (cppstdin.U):
339 This variable has the same functionality as cppminus, only it applies
340 to cpprun and not cppstdin.
342 cppminus (cppstdin.U):
343 This variable contains the second part of the string which will invoke
344 the C preprocessor on the standard input and produce to standard
345 output. This variable will have the value "-" if cppstdin needs
346 a minus to specify standard input, otherwise the value is "".
349 This variable contains the command which will invoke a C preprocessor
350 on standard input and put the output to stdout. It is guaranteed not
351 to be a wrapper and may be a null string if no preprocessor can be
352 made directly available. This preprocessor might be different from the
353 one used by the C compiler. Don't forget to append cpplast after the
354 preprocessor options.
356 cppstdin (cppstdin.U):
357 This variable contains the command which will invoke the C
358 preprocessor on standard input and put the output to stdout.
359 It is primarily used by other Configure units that ask about
360 preprocessor symbols.
362 cppsymbols (Cppsym.U):
363 The variable contains the symbols defined by the C preprocessor
364 alone. The symbols defined by cc or by cc when it calls cpp are
365 not in this list, see ccsymbols and cppccsymbols.
366 The list is a space-separated list of symbol=value tokens.
368 crypt_r_proto (d_crypt_r.U):
369 This variable encodes the prototype of crypt_r.
370 It is zero if d_crypt_r is undef, and one of the
371 REENTRANT_PROTO_T_ABC macros of reentr.h if d_crypt_r
374 cryptlib (d_crypt.U):
375 This variable holds -lcrypt or the path to a libcrypt.a archive if
376 the crypt() function is not defined in the standard C library. It is
377 up to the Makefile to use this.
380 This variable is used internally by Configure to determine the
381 full pathname (if any) of the csh program. After Configure runs,
382 the value is reset to a plain "csh" and is not useful.
384 ctermid_r_proto (d_ctermid_r.U):
385 This variable encodes the prototype of ctermid_r.
386 It is zero if d_ctermid_r is undef, and one of the
387 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ctermid_r
390 ctime_r_proto (d_ctime_r.U):
391 This variable encodes the prototype of ctime_r.
392 It is zero if d_ctime_r is undef, and one of the
393 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ctime_r
396 d__fwalk (d__fwalk.U):
397 This variable conditionally defines HAS__FWALK if _fwalk() is
398 available to apply a function to all the file handles.
400 d_access (d_access.U):
401 This variable conditionally defines HAS_ACCESS if the access() system
402 call is available to check for access permissions using real IDs.
404 d_accessx (d_accessx.U):
405 This variable conditionally defines the HAS_ACCESSX symbol, which
406 indicates to the C program that the accessx() routine is available.
409 This variable conditionally defines the HAS_AINTL symbol, which
410 indicates to the C program that the aintl() routine is available.
411 If copysignl is also present we can emulate modfl.
414 This variable conditionally defines the HAS_ALARM symbol, which
415 indicates to the C program that the alarm() routine is available.
417 d_archlib (archlib.U):
418 This variable conditionally defines ARCHLIB to hold the pathname
419 of architecture-dependent library files for $package. If
420 $archlib is the same as $privlib, then this is set to undef.
422 d_asctime64 (d_timefuncs64.U):
423 This variable conditionally defines the HAS_ASCTIME64 symbol, which
424 indicates to the C program that the asctime64 () routine is available.
426 d_asctime_r (d_asctime_r.U):
427 This variable conditionally defines the HAS_ASCTIME_R symbol,
428 which indicates to the C program that the asctime_r()
429 routine is available.
432 This variable conditionally defines the HAS_ATOLF symbol, which
433 indicates to the C program that the atolf() routine is available.
436 This variable conditionally defines the HAS_ATOLL symbol, which
437 indicates to the C program that the atoll() routine is available.
439 d_attribute_deprecated (d_attribut.U):
440 This variable conditionally defines HASATTRIBUTE_DEPRECATED, which
441 indicates that GCC can handle the attribute for marking deprecated
444 d_attribute_format (d_attribut.U):
445 This variable conditionally defines HASATTRIBUTE_FORMAT, which
446 indicates the C compiler can check for printf-like formats.
448 d_attribute_malloc (d_attribut.U):
449 This variable conditionally defines HASATTRIBUTE_MALLOC, which
450 indicates the C compiler can understand functions as having
451 malloc-like semantics.
453 d_attribute_nonnull (d_attribut.U):
454 This variable conditionally defines HASATTRIBUTE_NONNULL, which
455 indicates that the C compiler can know that certain arguments
456 must not be NULL, and will check accordingly at compile time.
458 d_attribute_noreturn (d_attribut.U):
459 This variable conditionally defines HASATTRIBUTE_NORETURN, which
460 indicates that the C compiler can know that certain functions
461 are guaranteed never to return.
463 d_attribute_pure (d_attribut.U):
464 This variable conditionally defines HASATTRIBUTE_PURE, which
465 indicates that the C compiler can know that certain functions
466 are "pure" functions, meaning that they have no side effects, and
467 only rely on function input and/or global data for their results.
469 d_attribute_unused (d_attribut.U):
470 This variable conditionally defines HASATTRIBUTE_UNUSED, which
471 indicates that the C compiler can know that certain variables
472 and arguments may not always be used, and to not throw warnings
473 if they don't get used.
475 d_attribute_warn_unused_result (d_attribut.U):
476 This variable conditionally defines
477 HASATTRIBUTE_WARN_UNUSED_RESULT, which indicates that the C
478 compiler can know that certain functions have a return values
479 that must not be ignored, such as malloc() or open().
482 This variable conditionally defines the HAS_BCMP symbol if
483 the bcmp() routine is available to compare strings.
486 This variable conditionally defines the HAS_BCOPY symbol if
487 the bcopy() routine is available to copy strings.
490 This symbol conditionally defines the symbol BSD when running on a
493 d_bsdgetpgrp (d_getpgrp.U):
494 This variable conditionally defines USE_BSD_GETPGRP if
495 getpgrp needs one arguments whereas USG one needs none.
497 d_bsdsetpgrp (d_setpgrp.U):
498 This variable conditionally defines USE_BSD_SETPGRP if
499 setpgrp needs two arguments whereas USG one needs none.
500 See also d_setpgid for a POSIX interface.
502 d_builtin_choose_expr (d_builtin.U):
503 This conditionally defines HAS_BUILTIN_CHOOSE_EXPR, which
504 indicates that the compiler supports __builtin_choose_expr(x,y,z).
505 This built-in function is analogous to the "x?y:z" operator in C,
506 except that the expression returned has its type unaltered by
507 promotion rules. Also, the built-in function does not evaluate
508 the expression that was not chosen.
510 d_builtin_expect (d_builtin.U):
511 This conditionally defines HAS_BUILTIN_EXPECT, which indicates
512 that the compiler supports __builtin_expect(exp,c). You may use
513 __builtin_expect to provide the compiler with branch prediction
517 This variable conditionally defines the HAS_BZERO symbol if
518 the bzero() routine is available to set memory to 0.
520 d_c99_variadic_macros (d_c99_variadic.U):
521 This variable conditionally defines the HAS_C99_VARIADIC_MACROS
522 symbol, which indicates to the C program that C99 variadic macros
525 d_casti32 (d_casti32.U):
526 This variable conditionally defines CASTI32, which indicates
527 whether the C compiler can cast large floats to 32-bit ints.
529 d_castneg (d_castneg.U):
530 This variable conditionally defines CASTNEG, which indicates
531 wether the C compiler can cast negative float to unsigned.
533 d_charvspr (d_vprintf.U):
534 This variable conditionally defines CHARVSPRINTF if this system
535 has vsprintf returning type (char*). The trend seems to be to
536 declare it as "int vsprintf()".
539 This variable conditionally defines the HAS_CHOWN symbol, which
540 indicates to the C program that the chown() routine is available.
542 d_chroot (d_chroot.U):
543 This variable conditionally defines the HAS_CHROOT symbol, which
544 indicates to the C program that the chroot() routine is available.
546 d_chsize (d_chsize.U):
547 This variable conditionally defines the CHSIZE symbol, which
548 indicates to the C program that the chsize() routine is available
549 to truncate files. You might need a -lx to get this routine.
552 This variable conditionally defines the HAS_CLASS symbol, which
553 indicates to the C program that the class() routine is available.
555 d_clearenv (d_clearenv.U):
556 This variable conditionally defines the HAS_CLEARENV symbol, which
557 indicates to the C program that the clearenv () routine is available.
559 d_closedir (d_closedir.U):
560 This variable conditionally defines HAS_CLOSEDIR if closedir() is
563 d_cmsghdr_s (d_cmsghdr_s.U):
564 This variable conditionally defines the HAS_STRUCT_CMSGHDR symbol,
565 which indicates that the struct cmsghdr is supported.
568 This variable conditionally defines the HASCONST symbol, which
569 indicates to the C program that this C compiler knows about the
572 d_copysignl (d_copysignl.U):
573 This variable conditionally defines the HAS_COPYSIGNL symbol, which
574 indicates to the C program that the copysignl() routine is available.
575 If aintl is also present we can emulate modfl.
577 d_cplusplus (d_cplusplus.U):
578 This variable conditionally defines the USE_CPLUSPLUS symbol, which
579 indicates that a C++ compiler was used to compiled Perl and will be
580 used to compile extensions.
583 This variable conditionally defines the CRYPT symbol, which
584 indicates to the C program that the crypt() routine is available
585 to encrypt passwords and the like.
587 d_crypt_r (d_crypt_r.U):
588 This variable conditionally defines the HAS_CRYPT_R symbol,
589 which indicates to the C program that the crypt_r()
590 routine is available.
593 This variable conditionally defines the CSH symbol, which
594 indicates to the C program that the C-shell exists.
596 d_ctermid (d_ctermid.U):
597 This variable conditionally defines CTERMID if ctermid() is
598 available to generate filename for terminal.
600 d_ctermid_r (d_ctermid_r.U):
601 This variable conditionally defines the HAS_CTERMID_R symbol,
602 which indicates to the C program that the ctermid_r()
603 routine is available.
605 d_ctime64 (d_timefuncs64.U):
606 This variable conditionally defines the HAS_CTIME64 symbol, which
607 indicates to the C program that the ctime64 () routine is available.
609 d_ctime_r (d_ctime_r.U):
610 This variable conditionally defines the HAS_CTIME_R symbol,
611 which indicates to the C program that the ctime_r()
612 routine is available.
614 d_cuserid (d_cuserid.U):
615 This variable conditionally defines the HAS_CUSERID symbol, which
616 indicates to the C program that the cuserid() routine is available
617 to get character login names.
619 d_dbl_dig (d_dbl_dig.U):
620 This variable conditionally defines d_dbl_dig if this system's
621 header files provide DBL_DIG, which is the number of significant
622 digits in a double precision number.
624 d_dbminitproto (d_dbminitproto.U):
625 This variable conditionally defines the HAS_DBMINIT_PROTO symbol,
626 which indicates to the C program that the system provides
627 a prototype for the dbminit() function. Otherwise, it is
628 up to the program to supply one.
630 d_difftime (d_difftime.U):
631 This variable conditionally defines the HAS_DIFFTIME symbol, which
632 indicates to the C program that the difftime() routine is available.
634 d_difftime64 (d_timefuncs64.U):
635 This variable conditionally defines the HAS_DIFFTIME64 symbol, which
636 indicates to the C program that the difftime64 () routine is available.
638 d_dir_dd_fd (d_dir_dd_fd.U):
639 This variable conditionally defines the HAS_DIR_DD_FD symbol, which
640 indicates that the DIR directory stream type contains a member
641 variable called dd_fd.
644 This variable conditionally defines the HAS_DIRFD constant,
645 which indicates to the C program that dirfd() is available
646 to return the file descriptor of a directory stream.
648 d_dirnamlen (i_dirent.U):
649 This variable conditionally defines DIRNAMLEN, which indicates
650 to the C program that the length of directory entry names is
651 provided by a d_namelen field.
653 d_dlerror (d_dlerror.U):
654 This variable conditionally defines the HAS_DLERROR symbol, which
655 indicates to the C program that the dlerror() routine is available.
657 d_dlopen (d_dlopen.U):
658 This variable conditionally defines the HAS_DLOPEN symbol, which
659 indicates to the C program that the dlopen() routine is available.
661 d_dlsymun (d_dlsymun.U):
662 This variable conditionally defines DLSYM_NEEDS_UNDERSCORE, which
663 indicates that we need to prepend an underscore to the symbol
664 name before calling dlsym().
666 d_dosuid (d_dosuid.U):
667 This variable conditionally defines the symbol DOSUID, which
668 tells the C program that it should insert setuid emulation code
669 on hosts which have setuid #! scripts disabled.
671 d_drand48_r (d_drand48_r.U):
672 This variable conditionally defines the HAS_DRAND48_R symbol,
673 which indicates to the C program that the drand48_r()
674 routine is available.
676 d_drand48proto (d_drand48proto.U):
677 This variable conditionally defines the HAS_DRAND48_PROTO symbol,
678 which indicates to the C program that the system provides
679 a prototype for the drand48() function. Otherwise, it is
680 up to the program to supply one.
683 This variable conditionally defines HAS_DUP2 if dup2() is
684 available to duplicate file descriptors.
686 d_eaccess (d_eaccess.U):
687 This variable conditionally defines the HAS_EACCESS symbol, which
688 indicates to the C program that the eaccess() routine is available.
690 d_endgrent (d_endgrent.U):
691 This variable conditionally defines the HAS_ENDGRENT symbol, which
692 indicates to the C program that the endgrent() routine is available
693 for sequential access of the group database.
695 d_endgrent_r (d_endgrent_r.U):
696 This variable conditionally defines the HAS_ENDGRENT_R symbol,
697 which indicates to the C program that the endgrent_r()
698 routine is available.
700 d_endhent (d_endhent.U):
701 This variable conditionally defines HAS_ENDHOSTENT if endhostent() is
702 available to close whatever was being used for host queries.
704 d_endhostent_r (d_endhostent_r.U):
705 This variable conditionally defines the HAS_ENDHOSTENT_R symbol,
706 which indicates to the C program that the endhostent_r()
707 routine is available.
709 d_endnent (d_endnent.U):
710 This variable conditionally defines HAS_ENDNETENT if endnetent() is
711 available to close whatever was being used for network queries.
713 d_endnetent_r (d_endnetent_r.U):
714 This variable conditionally defines the HAS_ENDNETENT_R symbol,
715 which indicates to the C program that the endnetent_r()
716 routine is available.
718 d_endpent (d_endpent.U):
719 This variable conditionally defines HAS_ENDPROTOENT if endprotoent() is
720 available to close whatever was being used for protocol queries.
722 d_endprotoent_r (d_endprotoent_r.U):
723 This variable conditionally defines the HAS_ENDPROTOENT_R symbol,
724 which indicates to the C program that the endprotoent_r()
725 routine is available.
727 d_endpwent (d_endpwent.U):
728 This variable conditionally defines the HAS_ENDPWENT symbol, which
729 indicates to the C program that the endpwent() routine is available
730 for sequential access of the passwd database.
732 d_endpwent_r (d_endpwent_r.U):
733 This variable conditionally defines the HAS_ENDPWENT_R symbol,
734 which indicates to the C program that the endpwent_r()
735 routine is available.
737 d_endsent (d_endsent.U):
738 This variable conditionally defines HAS_ENDSERVENT if endservent() is
739 available to close whatever was being used for service queries.
741 d_endservent_r (d_endservent_r.U):
742 This variable conditionally defines the HAS_ENDSERVENT_R symbol,
743 which indicates to the C program that the endservent_r()
744 routine is available.
746 d_eofnblk (nblock_io.U):
747 This variable conditionally defines EOF_NONBLOCK if EOF can be seen
748 when reading from a non-blocking I/O source.
751 This variable conditionally defines the symbols EUNICE and VAX, which
752 alerts the C program that it must deal with ideosyncracies of VMS.
754 d_faststdio (d_faststdio.U):
755 This variable conditionally defines the HAS_FAST_STDIO symbol,
756 which indicates to the C program that the "fast stdio" is available
757 to manipulate the stdio buffers directly.
759 d_fchdir (d_fchdir.U):
760 This variable conditionally defines the HAS_FCHDIR symbol, which
761 indicates to the C program that the fchdir() routine is available.
763 d_fchmod (d_fchmod.U):
764 This variable conditionally defines the HAS_FCHMOD symbol, which
765 indicates to the C program that the fchmod() routine is available
766 to change mode of opened files.
768 d_fchown (d_fchown.U):
769 This variable conditionally defines the HAS_FCHOWN symbol, which
770 indicates to the C program that the fchown() routine is available
771 to change ownership of opened files.
774 This variable conditionally defines the HAS_FCNTL symbol, and indicates
775 whether the fcntl() function exists
777 d_fcntl_can_lock (d_fcntl_can_lock.U):
778 This variable conditionally defines the FCNTL_CAN_LOCK symbol
779 and indicates whether file locking with fcntl() works.
781 d_fd_macros (d_fd_set.U):
782 This variable contains the eventual value of the HAS_FD_MACROS symbol,
783 which indicates if your C compiler knows about the macros which
784 manipulate an fd_set.
786 d_fd_set (d_fd_set.U):
787 This variable contains the eventual value of the HAS_FD_SET symbol,
788 which indicates if your C compiler knows about the fd_set typedef.
790 d_fds_bits (d_fd_set.U):
791 This variable contains the eventual value of the HAS_FDS_BITS symbol,
792 which indicates if your fd_set typedef contains the fds_bits member.
793 If you have an fd_set typedef, but the dweebs who installed it did
794 a half-fast job and neglected to provide the macros to manipulate
795 an fd_set, HAS_FDS_BITS will let us know how to fix the gaffe.
797 d_fgetpos (d_fgetpos.U):
798 This variable conditionally defines HAS_FGETPOS if fgetpos() is
799 available to get the file position indicator.
801 d_finite (d_finite.U):
802 This variable conditionally defines the HAS_FINITE symbol, which
803 indicates to the C program that the finite() routine is available.
805 d_finitel (d_finitel.U):
806 This variable conditionally defines the HAS_FINITEL symbol, which
807 indicates to the C program that the finitel() routine is available.
809 d_flexfnam (d_flexfnam.U):
810 This variable conditionally defines the FLEXFILENAMES symbol, which
811 indicates that the system supports filenames longer than 14 characters.
814 This variable conditionally defines HAS_FLOCK if flock() is
815 available to do file locking.
817 d_flockproto (d_flockproto.U):
818 This variable conditionally defines the HAS_FLOCK_PROTO symbol,
819 which indicates to the C program that the system provides
820 a prototype for the flock() function. Otherwise, it is
821 up to the program to supply one.
824 This variable conditionally defines the HAS_FORK symbol, which
825 indicates to the C program that the fork() routine is available.
827 d_fp_class (d_fp_class.U):
828 This variable conditionally defines the HAS_FP_CLASS symbol, which
829 indicates to the C program that the fp_class() routine is available.
831 d_fpathconf (d_pathconf.U):
832 This variable conditionally defines the HAS_FPATHCONF symbol, which
833 indicates to the C program that the pathconf() routine is available
834 to determine file-system related limits and options associated
835 with a given open file descriptor.
837 d_fpclass (d_fpclass.U):
838 This variable conditionally defines the HAS_FPCLASS symbol, which
839 indicates to the C program that the fpclass() routine is available.
841 d_fpclassify (d_fpclassify.U):
842 This variable conditionally defines the HAS_FPCLASSIFY symbol, which
843 indicates to the C program that the fpclassify() routine is available.
845 d_fpclassl (d_fpclassl.U):
846 This variable conditionally defines the HAS_FPCLASSL symbol, which
847 indicates to the C program that the fpclassl() routine is available.
849 d_fpos64_t (d_fpos64_t.U):
850 This symbol will be defined if the C compiler supports fpos64_t.
852 d_frexpl (d_frexpl.U):
853 This variable conditionally defines the HAS_FREXPL symbol, which
854 indicates to the C program that the frexpl() routine is available.
856 d_fs_data_s (d_fs_data_s.U):
857 This variable conditionally defines the HAS_STRUCT_FS_DATA symbol,
858 which indicates that the struct fs_data is supported.
860 d_fseeko (d_fseeko.U):
861 This variable conditionally defines the HAS_FSEEKO symbol, which
862 indicates to the C program that the fseeko() routine is available.
864 d_fsetpos (d_fsetpos.U):
865 This variable conditionally defines HAS_FSETPOS if fsetpos() is
866 available to set the file position indicator.
868 d_fstatfs (d_fstatfs.U):
869 This variable conditionally defines the HAS_FSTATFS symbol, which
870 indicates to the C program that the fstatfs() routine is available.
872 d_fstatvfs (d_statvfs.U):
873 This variable conditionally defines the HAS_FSTATVFS symbol, which
874 indicates to the C program that the fstatvfs() routine is available.
877 This variable conditionally defines the HAS_FSYNC symbol, which
878 indicates to the C program that the fsync() routine is available.
880 d_ftello (d_ftello.U):
881 This variable conditionally defines the HAS_FTELLO symbol, which
882 indicates to the C program that the ftello() routine is available.
885 This variable conditionally defines the HAS_FTIME symbol, which indicates
886 that the ftime() routine exists. The ftime() routine is basically
887 a sub-second accuracy clock.
889 d_futimes (d_futimes.U):
890 This variable conditionally defines the HAS_FUTIMES symbol, which
891 indicates to the C program that the futimes() routine is available.
893 d_Gconvert (d_gconvert.U):
894 This variable holds what Gconvert is defined as to convert
895 floating point numbers into strings. By default, Configure
896 sets this macro to use the first of gconvert, gcvt, or sprintf
897 that pass sprintf-%g-like behaviour tests. If perl is using
898 long doubles, the macro uses the first of the following
899 functions that pass Configure's tests: qgcvt, sprintf (if
900 Configure knows how to make sprintf format long doubles--see
901 sPRIgldbl), gconvert, gcvt, and sprintf (casting to double).
902 The gconvert_preference and gconvert_ld_preference variables
903 can be used to alter Configure's preferences, for doubles and
904 long doubles, respectively. If present, they contain a
905 space-separated list of one or more of the above function
906 names in the order they should be tried.
908 d_Gconvert may be set to override Configure with a platform-
909 specific function. If this function expects a double, a
910 different value may need to be set by the uselongdouble.cbu
911 call-back unit so that long doubles can be formatted without
914 d_gdbm_ndbm_h_uses_prototypes (i_ndbm.U):
915 This variable conditionally defines the NDBM_H_USES_PROTOTYPES symbol,
916 which indicates that the gdbm-ndbm.h include file uses real ANSI C
917 prototypes instead of K&R style function declarations. K&R style
918 declarations are unsupported in C++, so the include file requires
919 special handling when using a C++ compiler and this variable is
920 undefined. Consult the different d_*ndbm_h_uses_prototypes variables
921 to get the same information for alternative ndbm.h include files.
923 d_gdbmndbm_h_uses_prototypes (i_ndbm.U):
924 This variable conditionally defines the NDBM_H_USES_PROTOTYPES symbol,
925 which indicates that the gdbm/ndbm.h include file uses real ANSI C
926 prototypes instead of K&R style function declarations. K&R style
927 declarations are unsupported in C++, so the include file requires
928 special handling when using a C++ compiler and this variable is
929 undefined. Consult the different d_*ndbm_h_uses_prototypes variables
930 to get the same information for alternative ndbm.h include files.
932 d_getaddrinfo (d_getaddrinfo.U):
933 This variable conditionally defines the HAS_GETADDRINFO symbol,
934 which indicates to the C program that the getaddrinfo() function
937 d_getcwd (d_getcwd.U):
938 This variable conditionally defines the HAS_GETCWD symbol, which
939 indicates to the C program that the getcwd() routine is available
940 to get the current working directory.
942 d_getespwnam (d_getespwnam.U):
943 This variable conditionally defines HAS_GETESPWNAM if getespwnam() is
944 available to retrieve enchanced (shadow) password entries by name.
946 d_getfsstat (d_getfsstat.U):
947 This variable conditionally defines the HAS_GETFSSTAT symbol, which
948 indicates to the C program that the getfsstat() routine is available.
950 d_getgrent (d_getgrent.U):
951 This variable conditionally defines the HAS_GETGRENT symbol, which
952 indicates to the C program that the getgrent() routine is available
953 for sequential access of the group database.
955 d_getgrent_r (d_getgrent_r.U):
956 This variable conditionally defines the HAS_GETGRENT_R symbol,
957 which indicates to the C program that the getgrent_r()
958 routine is available.
960 d_getgrgid_r (d_getgrgid_r.U):
961 This variable conditionally defines the HAS_GETGRGID_R symbol,
962 which indicates to the C program that the getgrgid_r()
963 routine is available.
965 d_getgrnam_r (d_getgrnam_r.U):
966 This variable conditionally defines the HAS_GETGRNAM_R symbol,
967 which indicates to the C program that the getgrnam_r()
968 routine is available.
970 d_getgrps (d_getgrps.U):
971 This variable conditionally defines the HAS_GETGROUPS symbol, which
972 indicates to the C program that the getgroups() routine is available
973 to get the list of process groups.
975 d_gethbyaddr (d_gethbyad.U):
976 This variable conditionally defines the HAS_GETHOSTBYADDR symbol, which
977 indicates to the C program that the gethostbyaddr() routine is available
978 to look up hosts by their IP addresses.
980 d_gethbyname (d_gethbynm.U):
981 This variable conditionally defines the HAS_GETHOSTBYNAME symbol, which
982 indicates to the C program that the gethostbyname() routine is available
983 to look up host names in some data base or other.
985 d_gethent (d_gethent.U):
986 This variable conditionally defines HAS_GETHOSTENT if gethostent() is
987 available to look up host names in some data base or another.
989 d_gethname (d_gethname.U):
990 This variable conditionally defines the HAS_GETHOSTNAME symbol, which
991 indicates to the C program that the gethostname() routine may be
992 used to derive the host name.
994 d_gethostbyaddr_r (d_gethostbyaddr_r.U):
995 This variable conditionally defines the HAS_GETHOSTBYADDR_R symbol,
996 which indicates to the C program that the gethostbyaddr_r()
997 routine is available.
999 d_gethostbyname_r (d_gethostbyname_r.U):
1000 This variable conditionally defines the HAS_GETHOSTBYNAME_R symbol,
1001 which indicates to the C program that the gethostbyname_r()
1002 routine is available.
1004 d_gethostent_r (d_gethostent_r.U):
1005 This variable conditionally defines the HAS_GETHOSTENT_R symbol,
1006 which indicates to the C program that the gethostent_r()
1007 routine is available.
1009 d_gethostprotos (d_gethostprotos.U):
1010 This variable conditionally defines the HAS_GETHOST_PROTOS symbol,
1011 which indicates to the C program that <netdb.h> supplies
1012 prototypes for the various gethost*() functions.
1013 See also netdbtype.U for probing for various netdb types.
1015 d_getitimer (d_getitimer.U):
1016 This variable conditionally defines the HAS_GETITIMER symbol, which
1017 indicates to the C program that the getitimer() routine is available.
1019 d_getlogin (d_getlogin.U):
1020 This variable conditionally defines the HAS_GETLOGIN symbol, which
1021 indicates to the C program that the getlogin() routine is available
1022 to get the login name.
1024 d_getlogin_r (d_getlogin_r.U):
1025 This variable conditionally defines the HAS_GETLOGIN_R symbol,
1026 which indicates to the C program that the getlogin_r()
1027 routine is available.
1029 d_getmnt (d_getmnt.U):
1030 This variable conditionally defines the HAS_GETMNT symbol, which
1031 indicates to the C program that the getmnt() routine is available
1032 to retrieve one or more mount info blocks by filename.
1034 d_getmntent (d_getmntent.U):
1035 This variable conditionally defines the HAS_GETMNTENT symbol, which
1036 indicates to the C program that the getmntent() routine is available
1037 to iterate through mounted files to get their mount info.
1039 d_getnameinfo (d_getnameinfo.U):
1040 This variable conditionally defines the HAS_GETNAMEINFO symbol,
1041 which indicates to the C program that the getnameinfo() function
1044 d_getnbyaddr (d_getnbyad.U):
1045 This variable conditionally defines the HAS_GETNETBYADDR symbol, which
1046 indicates to the C program that the getnetbyaddr() routine is available
1047 to look up networks by their IP addresses.
1049 d_getnbyname (d_getnbynm.U):
1050 This variable conditionally defines the HAS_GETNETBYNAME symbol, which
1051 indicates to the C program that the getnetbyname() routine is available
1052 to look up networks by their names.
1054 d_getnent (d_getnent.U):
1055 This variable conditionally defines HAS_GETNETENT if getnetent() is
1056 available to look up network names in some data base or another.
1058 d_getnetbyaddr_r (d_getnetbyaddr_r.U):
1059 This variable conditionally defines the HAS_GETNETBYADDR_R symbol,
1060 which indicates to the C program that the getnetbyaddr_r()
1061 routine is available.
1063 d_getnetbyname_r (d_getnetbyname_r.U):
1064 This variable conditionally defines the HAS_GETNETBYNAME_R symbol,
1065 which indicates to the C program that the getnetbyname_r()
1066 routine is available.
1068 d_getnetent_r (d_getnetent_r.U):
1069 This variable conditionally defines the HAS_GETNETENT_R symbol,
1070 which indicates to the C program that the getnetent_r()
1071 routine is available.
1073 d_getnetprotos (d_getnetprotos.U):
1074 This variable conditionally defines the HAS_GETNET_PROTOS symbol,
1075 which indicates to the C program that <netdb.h> supplies
1076 prototypes for the various getnet*() functions.
1077 See also netdbtype.U for probing for various netdb types.
1079 d_getpagsz (d_getpagsz.U):
1080 This variable conditionally defines HAS_GETPAGESIZE if getpagesize()
1081 is available to get the system page size.
1083 d_getpbyname (d_getprotby.U):
1084 This variable conditionally defines the HAS_GETPROTOBYNAME
1085 symbol, which indicates to the C program that the
1086 getprotobyname() routine is available to look up protocols
1089 d_getpbynumber (d_getprotby.U):
1090 This variable conditionally defines the HAS_GETPROTOBYNUMBER
1091 symbol, which indicates to the C program that the
1092 getprotobynumber() routine is available to look up protocols
1095 d_getpent (d_getpent.U):
1096 This variable conditionally defines HAS_GETPROTOENT if getprotoent() is
1097 available to look up protocols in some data base or another.
1099 d_getpgid (d_getpgid.U):
1100 This variable conditionally defines the HAS_GETPGID symbol, which
1101 indicates to the C program that the getpgid(pid) function
1102 is available to get the process group id.
1104 d_getpgrp (d_getpgrp.U):
1105 This variable conditionally defines HAS_GETPGRP if getpgrp() is
1106 available to get the current process group.
1108 d_getpgrp2 (d_getpgrp2.U):
1109 This variable conditionally defines the HAS_GETPGRP2 symbol, which
1110 indicates to the C program that the getpgrp2() (as in DG/UX) routine
1111 is available to get the current process group.
1113 d_getppid (d_getppid.U):
1114 This variable conditionally defines the HAS_GETPPID symbol, which
1115 indicates to the C program that the getppid() routine is available
1116 to get the parent process ID.
1118 d_getprior (d_getprior.U):
1119 This variable conditionally defines HAS_GETPRIORITY if getpriority()
1120 is available to get a process's priority.
1122 d_getprotobyname_r (d_getprotobyname_r.U):
1123 This variable conditionally defines the HAS_GETPROTOBYNAME_R symbol,
1124 which indicates to the C program that the getprotobyname_r()
1125 routine is available.
1127 d_getprotobynumber_r (d_getprotobynumber_r.U):
1128 This variable conditionally defines the HAS_GETPROTOBYNUMBER_R symbol,
1129 which indicates to the C program that the getprotobynumber_r()
1130 routine is available.
1132 d_getprotoent_r (d_getprotoent_r.U):
1133 This variable conditionally defines the HAS_GETPROTOENT_R symbol,
1134 which indicates to the C program that the getprotoent_r()
1135 routine is available.
1137 d_getprotoprotos (d_getprotoprotos.U):
1138 This variable conditionally defines the HAS_GETPROTO_PROTOS symbol,
1139 which indicates to the C program that <netdb.h> supplies
1140 prototypes for the various getproto*() functions.
1141 See also netdbtype.U for probing for various netdb types.
1143 d_getprpwnam (d_getprpwnam.U):
1144 This variable conditionally defines HAS_GETPRPWNAM if getprpwnam() is
1145 available to retrieve protected (shadow) password entries by name.
1147 d_getpwent (d_getpwent.U):
1148 This variable conditionally defines the HAS_GETPWENT symbol, which
1149 indicates to the C program that the getpwent() routine is available
1150 for sequential access of the passwd database.
1152 d_getpwent_r (d_getpwent_r.U):
1153 This variable conditionally defines the HAS_GETPWENT_R symbol,
1154 which indicates to the C program that the getpwent_r()
1155 routine is available.
1157 d_getpwnam_r (d_getpwnam_r.U):
1158 This variable conditionally defines the HAS_GETPWNAM_R symbol,
1159 which indicates to the C program that the getpwnam_r()
1160 routine is available.
1162 d_getpwuid_r (d_getpwuid_r.U):
1163 This variable conditionally defines the HAS_GETPWUID_R symbol,
1164 which indicates to the C program that the getpwuid_r()
1165 routine is available.
1167 d_getsbyname (d_getsrvby.U):
1168 This variable conditionally defines the HAS_GETSERVBYNAME
1169 symbol, which indicates to the C program that the
1170 getservbyname() routine is available to look up services
1173 d_getsbyport (d_getsrvby.U):
1174 This variable conditionally defines the HAS_GETSERVBYPORT
1175 symbol, which indicates to the C program that the
1176 getservbyport() routine is available to look up services
1179 d_getsent (d_getsent.U):
1180 This variable conditionally defines HAS_GETSERVENT if getservent() is
1181 available to look up network services in some data base or another.
1183 d_getservbyname_r (d_getservbyname_r.U):
1184 This variable conditionally defines the HAS_GETSERVBYNAME_R symbol,
1185 which indicates to the C program that the getservbyname_r()
1186 routine is available.
1188 d_getservbyport_r (d_getservbyport_r.U):
1189 This variable conditionally defines the HAS_GETSERVBYPORT_R symbol,
1190 which indicates to the C program that the getservbyport_r()
1191 routine is available.
1193 d_getservent_r (d_getservent_r.U):
1194 This variable conditionally defines the HAS_GETSERVENT_R symbol,
1195 which indicates to the C program that the getservent_r()
1196 routine is available.
1198 d_getservprotos (d_getservprotos.U):
1199 This variable conditionally defines the HAS_GETSERV_PROTOS symbol,
1200 which indicates to the C program that <netdb.h> supplies
1201 prototypes for the various getserv*() functions.
1202 See also netdbtype.U for probing for various netdb types.
1204 d_getspnam (d_getspnam.U):
1205 This variable conditionally defines HAS_GETSPNAM if getspnam() is
1206 available to retrieve SysV shadow password entries by name.
1208 d_getspnam_r (d_getspnam_r.U):
1209 This variable conditionally defines the HAS_GETSPNAM_R symbol,
1210 which indicates to the C program that the getspnam_r()
1211 routine is available.
1213 d_gettimeod (d_ftime.U):
1214 This variable conditionally defines the HAS_GETTIMEOFDAY symbol, which
1215 indicates that the gettimeofday() system call exists (to obtain a
1216 sub-second accuracy clock). You should probably include <sys/resource.h>.
1218 d_gmtime64 (d_timefuncs64.U):
1219 This variable conditionally defines the HAS_GMTIME64 symbol, which
1220 indicates to the C program that the gmtime64 () routine is available.
1222 d_gmtime_r (d_gmtime_r.U):
1223 This variable conditionally defines the HAS_GMTIME_R symbol,
1224 which indicates to the C program that the gmtime_r()
1225 routine is available.
1227 d_gnulibc (d_gnulibc.U):
1228 Defined if we're dealing with the GNU C Library.
1230 d_grpasswd (i_grp.U):
1231 This variable conditionally defines GRPASSWD, which indicates
1232 that struct group in <grp.h> contains gr_passwd.
1234 d_hasmntopt (d_hasmntopt.U):
1235 This variable conditionally defines the HAS_HASMNTOPT symbol, which
1236 indicates to the C program that the hasmntopt() routine is available
1237 to query the mount options of file systems.
1239 d_htonl (d_htonl.U):
1240 This variable conditionally defines HAS_HTONL if htonl() and its
1241 friends are available to do network order byte swapping.
1243 d_ilogbl (d_ilogbl.U):
1244 This variable conditionally defines the HAS_ILOGBL symbol, which
1245 indicates to the C program that the ilogbl() routine is available.
1246 If scalbnl is also present we can emulate frexpl.
1248 d_inc_version_list (inc_version_list.U):
1249 This variable conditionally defines PERL_INC_VERSION_LIST.
1250 It is set to undef when PERL_INC_VERSION_LIST is empty.
1252 d_index (d_strchr.U):
1253 This variable conditionally defines HAS_INDEX if index() and
1254 rindex() are available for string searching.
1256 d_inetaton (d_inetaton.U):
1257 This variable conditionally defines the HAS_INET_ATON symbol, which
1258 indicates to the C program that the inet_aton() function is available
1259 to parse IP address "dotted-quad" strings.
1261 d_inetntop (d_inetntop.U):
1262 This variable conditionally defines the HAS_INETNTOP symbol,
1263 which indicates to the C program that the inet_ntop() function
1266 d_inetpton (d_inetpton.U):
1267 This variable conditionally defines the HAS_INETPTON symbol,
1268 which indicates to the C program that the inet_pton() function
1271 d_int64_t (d_int64_t.U):
1272 This symbol will be defined if the C compiler supports int64_t.
1274 d_isascii (d_isascii.U):
1275 This variable conditionally defines the HAS_ISASCII constant,
1276 which indicates to the C program that isascii() is available.
1278 d_isfinite (d_isfinite.U):
1279 This variable conditionally defines the HAS_ISFINITE symbol, which
1280 indicates to the C program that the isfinite() routine is available.
1282 d_isinf (d_isinf.U):
1283 This variable conditionally defines the HAS_ISINF symbol, which
1284 indicates to the C program that the isinf() routine is available.
1286 d_isnan (d_isnan.U):
1287 This variable conditionally defines the HAS_ISNAN symbol, which
1288 indicates to the C program that the isnan() routine is available.
1290 d_isnanl (d_isnanl.U):
1291 This variable conditionally defines the HAS_ISNANL symbol, which
1292 indicates to the C program that the isnanl() routine is available.
1294 d_killpg (d_killpg.U):
1295 This variable conditionally defines the HAS_KILLPG symbol, which
1296 indicates to the C program that the killpg() routine is available
1297 to kill process groups.
1299 d_lchown (d_lchown.U):
1300 This variable conditionally defines the HAS_LCHOWN symbol, which
1301 indicates to the C program that the lchown() routine is available
1302 to operate on a symbolic link (instead of following the link).
1304 d_ldbl_dig (d_ldbl_dig.U):
1305 This variable conditionally defines d_ldbl_dig if this system's
1306 header files provide LDBL_DIG, which is the number of significant
1307 digits in a long double precision number.
1309 d_libm_lib_version (d_libm_lib_version.U):
1310 This variable conditionally defines the LIBM_LIB_VERSION symbol,
1311 which indicates to the C program that math.h defines _LIB_VERSION
1312 being available in libm
1315 This variable conditionally defines HAS_LINK if link() is
1316 available to create hard links.
1318 d_localtime64 (d_timefuncs64.U):
1319 This variable conditionally defines the HAS_LOCALTIME64 symbol, which
1320 indicates to the C program that the localtime64 () routine is available.
1322 d_localtime_r (d_localtime_r.U):
1323 This variable conditionally defines the HAS_LOCALTIME_R symbol,
1324 which indicates to the C program that the localtime_r()
1325 routine is available.
1327 d_localtime_r_needs_tzset (d_localtime_r.U):
1328 This variable conditionally defines the LOCALTIME_R_NEEDS_TZSET
1329 symbol, which makes us call tzset before localtime_r()
1331 d_locconv (d_locconv.U):
1332 This variable conditionally defines HAS_LOCALECONV if localeconv() is
1333 available for numeric and monetary formatting conventions.
1335 d_lockf (d_lockf.U):
1336 This variable conditionally defines HAS_LOCKF if lockf() is
1337 available to do file locking.
1339 d_longdbl (d_longdbl.U):
1340 This variable conditionally defines HAS_LONG_DOUBLE if
1341 the long double type is supported.
1343 d_longlong (d_longlong.U):
1344 This variable conditionally defines HAS_LONG_LONG if
1345 the long long type is supported.
1347 d_lseekproto (d_lseekproto.U):
1348 This variable conditionally defines the HAS_LSEEK_PROTO symbol,
1349 which indicates to the C program that the system provides
1350 a prototype for the lseek() function. Otherwise, it is
1351 up to the program to supply one.
1353 d_lstat (d_lstat.U):
1354 This variable conditionally defines HAS_LSTAT if lstat() is
1355 available to do file stats on symbolic links.
1357 d_madvise (d_madvise.U):
1358 This variable conditionally defines HAS_MADVISE if madvise() is
1359 available to map a file into memory.
1361 d_malloc_good_size (d_malloc_size.U):
1362 This symbol, if defined, indicates that the malloc_good_size
1363 routine is available for use.
1365 d_malloc_size (d_malloc_size.U):
1366 This symbol, if defined, indicates that the malloc_size
1367 routine is available for use.
1369 d_mblen (d_mblen.U):
1370 This variable conditionally defines the HAS_MBLEN symbol, which
1371 indicates to the C program that the mblen() routine is available
1372 to find the number of bytes in a multibye character.
1374 d_mbstowcs (d_mbstowcs.U):
1375 This variable conditionally defines the HAS_MBSTOWCS symbol, which
1376 indicates to the C program that the mbstowcs() routine is available
1377 to convert a multibyte string into a wide character string.
1379 d_mbtowc (d_mbtowc.U):
1380 This variable conditionally defines the HAS_MBTOWC symbol, which
1381 indicates to the C program that the mbtowc() routine is available
1382 to convert multibyte to a wide character.
1384 d_memchr (d_memchr.U):
1385 This variable conditionally defines the HAS_MEMCHR symbol, which
1386 indicates to the C program that the memchr() routine is available
1387 to locate characters within a C string.
1389 d_memcmp (d_memcmp.U):
1390 This variable conditionally defines the HAS_MEMCMP symbol, which
1391 indicates to the C program that the memcmp() routine is available
1392 to compare blocks of memory.
1394 d_memcpy (d_memcpy.U):
1395 This variable conditionally defines the HAS_MEMCPY symbol, which
1396 indicates to the C program that the memcpy() routine is available
1397 to copy blocks of memory.
1399 d_memmove (d_memmove.U):
1400 This variable conditionally defines the HAS_MEMMOVE symbol, which
1401 indicates to the C program that the memmove() routine is available
1402 to copy potentatially overlapping blocks of memory.
1404 d_memset (d_memset.U):
1405 This variable conditionally defines the HAS_MEMSET symbol, which
1406 indicates to the C program that the memset() routine is available
1407 to set blocks of memory.
1409 d_mkdir (d_mkdir.U):
1410 This variable conditionally defines the HAS_MKDIR symbol, which
1411 indicates to the C program that the mkdir() routine is available
1412 to create directories..
1414 d_mkdtemp (d_mkdtemp.U):
1415 This variable conditionally defines the HAS_MKDTEMP symbol, which
1416 indicates to the C program that the mkdtemp() routine is available
1417 to exclusively create a uniquely named temporary directory.
1419 d_mkfifo (d_mkfifo.U):
1420 This variable conditionally defines the HAS_MKFIFO symbol, which
1421 indicates to the C program that the mkfifo() routine is available.
1423 d_mkstemp (d_mkstemp.U):
1424 This variable conditionally defines the HAS_MKSTEMP symbol, which
1425 indicates to the C program that the mkstemp() routine is available
1426 to exclusively create and open a uniquely named temporary file.
1428 d_mkstemps (d_mkstemps.U):
1429 This variable conditionally defines the HAS_MKSTEMPS symbol, which
1430 indicates to the C program that the mkstemps() routine is available
1431 to exclusively create and open a uniquely named (with a suffix)
1434 d_mktime (d_mktime.U):
1435 This variable conditionally defines the HAS_MKTIME symbol, which
1436 indicates to the C program that the mktime() routine is available.
1438 d_mktime64 (d_timefuncs64.U):
1439 This variable conditionally defines the HAS_MKTIME64 symbol, which
1440 indicates to the C program that the mktime64 () routine is available.
1443 This variable conditionally defines HAS_MMAP if mmap() is
1444 available to map a file into memory.
1446 d_modfl (d_modfl.U):
1447 This variable conditionally defines the HAS_MODFL symbol, which
1448 indicates to the C program that the modfl() routine is available.
1450 d_modfl_pow32_bug (d_modfl.U):
1451 This variable conditionally defines the HAS_MODFL_POW32_BUG symbol,
1452 which indicates that modfl() is broken for long doubles >= pow(2, 32).
1453 For example from 4294967303.150000 one would get 4294967302.000000
1454 and 1.150000. The bug has been seen in certain versions of glibc,
1455 release 2.2.2 is known to be okay.
1457 d_modflproto (d_modfl.U):
1458 This symbol, if defined, indicates that the system provides
1459 a prototype for the modfl() function. Otherwise, it is up
1460 to the program to supply one. C99 says it should be
1461 long double modfl(long double, long double *);
1463 d_mprotect (d_mprotect.U):
1464 This variable conditionally defines HAS_MPROTECT if mprotect() is
1465 available to modify the access protection of a memory mapped file.
1468 This variable conditionally defines the HAS_MSG symbol, which
1469 indicates that the entire msg*(2) library is present.
1471 d_msg_ctrunc (d_socket.U):
1472 This variable conditionally defines the HAS_MSG_CTRUNC symbol,
1473 which indicates that the MSG_CTRUNC is available. #ifdef is
1474 not enough because it may be an enum, glibc has been known to do this.
1476 d_msg_dontroute (d_socket.U):
1477 This variable conditionally defines the HAS_MSG_DONTROUTE symbol,
1478 which indicates that the MSG_DONTROUTE is available. #ifdef is
1479 not enough because it may be an enum, glibc has been known to do this.
1481 d_msg_oob (d_socket.U):
1482 This variable conditionally defines the HAS_MSG_OOB symbol,
1483 which indicates that the MSG_OOB is available. #ifdef is
1484 not enough because it may be an enum, glibc has been known to do this.
1486 d_msg_peek (d_socket.U):
1487 This variable conditionally defines the HAS_MSG_PEEK symbol,
1488 which indicates that the MSG_PEEK is available. #ifdef is
1489 not enough because it may be an enum, glibc has been known to do this.
1491 d_msg_proxy (d_socket.U):
1492 This variable conditionally defines the HAS_MSG_PROXY symbol,
1493 which indicates that the MSG_PROXY is available. #ifdef is
1494 not enough because it may be an enum, glibc has been known to do this.
1496 d_msgctl (d_msgctl.U):
1497 This variable conditionally defines the HAS_MSGCTL symbol, which
1498 indicates to the C program that the msgctl() routine is available.
1500 d_msgget (d_msgget.U):
1501 This variable conditionally defines the HAS_MSGGET symbol, which
1502 indicates to the C program that the msgget() routine is available.
1504 d_msghdr_s (d_msghdr_s.U):
1505 This variable conditionally defines the HAS_STRUCT_MSGHDR symbol,
1506 which indicates that the struct msghdr is supported.
1508 d_msgrcv (d_msgrcv.U):
1509 This variable conditionally defines the HAS_MSGRCV symbol, which
1510 indicates to the C program that the msgrcv() routine is available.
1512 d_msgsnd (d_msgsnd.U):
1513 This variable conditionally defines the HAS_MSGSND symbol, which
1514 indicates to the C program that the msgsnd() routine is available.
1516 d_msync (d_msync.U):
1517 This variable conditionally defines HAS_MSYNC if msync() is
1518 available to synchronize a mapped file.
1520 d_munmap (d_munmap.U):
1521 This variable conditionally defines HAS_MUNMAP if munmap() is
1522 available to unmap a region mapped by mmap().
1524 d_mymalloc (mallocsrc.U):
1525 This variable conditionally defines MYMALLOC in case other parts
1526 of the source want to take special action if MYMALLOC is used.
1527 This may include different sorts of profiling or error detection.
1530 This variable conditionally defines the HAS_NDBM symbol, which
1531 indicates that both the ndbm.h include file and an appropriate ndbm
1532 library exist. Consult the different i_*ndbm variables
1533 to find out the actual include location. Sometimes, a system has the
1534 header file but not the library. This variable will only be set if
1535 the system has both.
1537 d_ndbm_h_uses_prototypes (i_ndbm.U):
1538 This variable conditionally defines the NDBM_H_USES_PROTOTYPES symbol,
1539 which indicates that the ndbm.h include file uses real ANSI C
1540 prototypes instead of K&R style function declarations. K&R style
1541 declarations are unsupported in C++, so the include file requires
1542 special handling when using a C++ compiler and this variable is
1543 undefined. Consult the different d_*ndbm_h_uses_prototypes variables
1544 to get the same information for alternative ndbm.h include files.
1547 This variable conditionally defines the HAS_NICE symbol, which
1548 indicates to the C program that the nice() routine is available.
1550 d_nl_langinfo (d_nl_langinfo.U):
1551 This variable conditionally defines the HAS_NL_LANGINFO symbol, which
1552 indicates to the C program that the nl_langinfo() routine is available.
1554 d_nv_preserves_uv (perlxv.U):
1555 This variable indicates whether a variable of type nvtype
1556 can preserve all the bits a variable of type uvtype.
1558 d_nv_zero_is_allbits_zero (perlxv.U):
1559 This variable indicates whether a variable of type nvtype
1560 stores 0.0 in memory as all bits zero.
1562 d_off64_t (d_off64_t.U):
1563 This symbol will be defined if the C compiler supports off64_t.
1565 d_old_pthread_create_joinable (d_pthrattrj.U):
1566 This variable conditionally defines pthread_create_joinable.
1567 undef if pthread.h defines PTHREAD_CREATE_JOINABLE.
1569 d_oldpthreads (usethreads.U):
1570 This variable conditionally defines the OLD_PTHREADS_API symbol,
1571 and indicates that Perl should be built to use the old
1572 draft POSIX threads API. This is only potentially meaningful if
1575 d_oldsock (d_socket.U):
1576 This variable conditionally defines the OLDSOCKET symbol, which
1577 indicates that the BSD socket interface is based on 4.1c and not 4.2.
1579 d_open3 (d_open3.U):
1580 This variable conditionally defines the HAS_OPEN3 manifest constant,
1581 which indicates to the C program that the 3 argument version of
1582 the open(2) function is available.
1584 d_pathconf (d_pathconf.U):
1585 This variable conditionally defines the HAS_PATHCONF symbol, which
1586 indicates to the C program that the pathconf() routine is available
1587 to determine file-system related limits and options associated
1588 with a given filename.
1590 d_pause (d_pause.U):
1591 This variable conditionally defines the HAS_PAUSE symbol, which
1592 indicates to the C program that the pause() routine is available
1593 to suspend a process until a signal is received.
1595 d_perl_otherlibdirs (otherlibdirs.U):
1596 This variable conditionally defines PERL_OTHERLIBDIRS, which
1597 contains a colon-separated set of paths for the perl binary to
1598 include in @INC. See also otherlibdirs.
1600 d_phostname (d_gethname.U):
1601 This variable conditionally defines the HAS_PHOSTNAME symbol, which
1602 contains the shell command which, when fed to popen(), may be
1603 used to derive the host name.
1606 This variable conditionally defines the HAS_PIPE symbol, which
1607 indicates to the C program that the pipe() routine is available
1608 to create an inter-process channel.
1611 This variable conditionally defines the HAS_POLL symbol, which
1612 indicates to the C program that the poll() routine is available
1613 to poll active file descriptors.
1615 d_portable (d_portable.U):
1616 This variable conditionally defines the PORTABLE symbol, which
1617 indicates to the C program that it should not assume that it is
1618 running on the machine it was compiled on.
1620 d_prctl (d_prctl.U):
1621 This variable conditionally defines the HAS_PRCTL symbol, which
1622 indicates to the C program that the prctl() routine is available.
1624 d_prctl_set_name (d_prctl.U):
1625 This variable conditionally defines the HAS_PRCTL_SET_NAME symbol,
1626 which indicates to the C program that the prctl() routine supports
1627 the PR_SET_NAME option.
1629 d_PRId64 (quadfio.U):
1630 This variable conditionally defines the PERL_PRId64 symbol, which
1631 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1633 d_PRIeldbl (longdblfio.U):
1634 This variable conditionally defines the PERL_PRIfldbl symbol, which
1635 indiciates that stdio has a symbol to print long doubles.
1637 d_PRIEUldbl (longdblfio.U):
1638 This variable conditionally defines the PERL_PRIfldbl symbol, which
1639 indiciates that stdio has a symbol to print long doubles.
1640 The 'U' in the name is to separate this from d_PRIeldbl so that even
1641 case-blind systems can see the difference.
1643 d_PRIfldbl (longdblfio.U):
1644 This variable conditionally defines the PERL_PRIfldbl symbol, which
1645 indiciates that stdio has a symbol to print long doubles.
1647 d_PRIFUldbl (longdblfio.U):
1648 This variable conditionally defines the PERL_PRIfldbl symbol, which
1649 indiciates that stdio has a symbol to print long doubles.
1650 The 'U' in the name is to separate this from d_PRIfldbl so that even
1651 case-blind systems can see the difference.
1653 d_PRIgldbl (longdblfio.U):
1654 This variable conditionally defines the PERL_PRIfldbl symbol, which
1655 indiciates that stdio has a symbol to print long doubles.
1657 d_PRIGUldbl (longdblfio.U):
1658 This variable conditionally defines the PERL_PRIfldbl symbol, which
1659 indiciates that stdio has a symbol to print long doubles.
1660 The 'U' in the name is to separate this from d_PRIgldbl so that even
1661 case-blind systems can see the difference.
1663 d_PRIi64 (quadfio.U):
1664 This variable conditionally defines the PERL_PRIi64 symbol, which
1665 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1667 d_printf_format_null (d_attribut.U):
1668 This variable conditionally defines PRINTF_FORMAT_NULL_OK, which
1669 indicates the C compiler allows printf-like formats to be null.
1671 d_PRIo64 (quadfio.U):
1672 This variable conditionally defines the PERL_PRIo64 symbol, which
1673 indiciates that stdio has a symbol to print 64-bit octal numbers.
1675 d_PRIu64 (quadfio.U):
1676 This variable conditionally defines the PERL_PRIu64 symbol, which
1677 indiciates that stdio has a symbol to print 64-bit unsigned decimal
1680 d_PRIx64 (quadfio.U):
1681 This variable conditionally defines the PERL_PRIx64 symbol, which
1682 indiciates that stdio has a symbol to print 64-bit hexadecimal numbers.
1684 d_PRIXU64 (quadfio.U):
1685 This variable conditionally defines the PERL_PRIXU64 symbol, which
1686 indiciates that stdio has a symbol to print 64-bit hExADECimAl numbers.
1687 The 'U' in the name is to separate this from d_PRIx64 so that even
1688 case-blind systems can see the difference.
1690 d_procselfexe (d_procselfexe.U):
1691 Defined if $procselfexe is symlink to the absolute
1692 pathname of the executing program.
1694 d_pseudofork (d_vfork.U):
1695 This variable conditionally defines the HAS_PSEUDOFORK symbol,
1696 which indicates that an emulation of the fork routine is available.
1698 d_pthread_atfork (d_pthread_atfork.U):
1699 This variable conditionally defines the HAS_PTHREAD_ATFORK symbol,
1700 which indicates to the C program that the pthread_atfork()
1701 routine is available.
1703 d_pthread_attr_setscope (d_pthread_attr_ss.U):
1704 This variable conditionally defines HAS_PTHREAD_ATTR_SETSCOPE if
1705 pthread_attr_setscope() is available to set the contention scope
1706 attribute of a thread attribute object.
1708 d_pthread_yield (d_pthread_y.U):
1709 This variable conditionally defines the HAS_PTHREAD_YIELD
1710 symbol if the pthread_yield routine is available to yield
1711 the execution of the current thread.
1714 This variable conditionally defines PWAGE, which indicates
1715 that struct passwd contains pw_age.
1717 d_pwchange (i_pwd.U):
1718 This variable conditionally defines PWCHANGE, which indicates
1719 that struct passwd contains pw_change.
1721 d_pwclass (i_pwd.U):
1722 This variable conditionally defines PWCLASS, which indicates
1723 that struct passwd contains pw_class.
1725 d_pwcomment (i_pwd.U):
1726 This variable conditionally defines PWCOMMENT, which indicates
1727 that struct passwd contains pw_comment.
1729 d_pwexpire (i_pwd.U):
1730 This variable conditionally defines PWEXPIRE, which indicates
1731 that struct passwd contains pw_expire.
1733 d_pwgecos (i_pwd.U):
1734 This variable conditionally defines PWGECOS, which indicates
1735 that struct passwd contains pw_gecos.
1737 d_pwpasswd (i_pwd.U):
1738 This variable conditionally defines PWPASSWD, which indicates
1739 that struct passwd contains pw_passwd.
1741 d_pwquota (i_pwd.U):
1742 This variable conditionally defines PWQUOTA, which indicates
1743 that struct passwd contains pw_quota.
1745 d_qgcvt (d_qgcvt.U):
1746 This variable conditionally defines the HAS_QGCVT symbol, which
1747 indicates to the C program that the qgcvt() routine is available.
1749 d_quad (quadtype.U):
1750 This variable, if defined, tells that there's a 64-bit integer type,
1753 d_random_r (d_random_r.U):
1754 This variable conditionally defines the HAS_RANDOM_R symbol,
1755 which indicates to the C program that the random_r()
1756 routine is available.
1758 d_readdir (d_readdir.U):
1759 This variable conditionally defines HAS_READDIR if readdir() is
1760 available to read directory entries.
1762 d_readdir64_r (d_readdir64_r.U):
1763 This variable conditionally defines the HAS_READDIR64_R symbol,
1764 which indicates to the C program that the readdir64_r()
1765 routine is available.
1767 d_readdir_r (d_readdir_r.U):
1768 This variable conditionally defines the HAS_READDIR_R symbol,
1769 which indicates to the C program that the readdir_r()
1770 routine is available.
1772 d_readlink (d_readlink.U):
1773 This variable conditionally defines the HAS_READLINK symbol, which
1774 indicates to the C program that the readlink() routine is available
1775 to read the value of a symbolic link.
1777 d_readv (d_readv.U):
1778 This variable conditionally defines the HAS_READV symbol, which
1779 indicates to the C program that the readv() routine is available.
1781 d_recvmsg (d_recvmsg.U):
1782 This variable conditionally defines the HAS_RECVMSG symbol, which
1783 indicates to the C program that the recvmsg() routine is available.
1785 d_rename (d_rename.U):
1786 This variable conditionally defines the HAS_RENAME symbol, which
1787 indicates to the C program that the rename() routine is available
1790 d_rewinddir (d_readdir.U):
1791 This variable conditionally defines HAS_REWINDDIR if rewinddir() is
1794 d_rmdir (d_rmdir.U):
1795 This variable conditionally defines HAS_RMDIR if rmdir() is
1796 available to remove directories.
1798 d_safebcpy (d_safebcpy.U):
1799 This variable conditionally defines the HAS_SAFE_BCOPY symbol if
1800 the bcopy() routine can do overlapping copies. Normally, you
1801 should probably use memmove().
1803 d_safemcpy (d_safemcpy.U):
1804 This variable conditionally defines the HAS_SAFE_MEMCPY symbol if
1805 the memcpy() routine can do overlapping copies.
1806 For overlapping copies, memmove() should be used, if available.
1808 d_sanemcmp (d_sanemcmp.U):
1809 This variable conditionally defines the HAS_SANE_MEMCMP symbol if
1810 the memcpy() routine is available and can be used to compare relative
1811 magnitudes of chars with their high bits set.
1813 d_sbrkproto (d_sbrkproto.U):
1814 This variable conditionally defines the HAS_SBRK_PROTO symbol,
1815 which indicates to the C program that the system provides
1816 a prototype for the sbrk() function. Otherwise, it is
1817 up to the program to supply one.
1819 d_scalbnl (d_scalbnl.U):
1820 This variable conditionally defines the HAS_SCALBNL symbol, which
1821 indicates to the C program that the scalbnl() routine is available.
1822 If ilogbl is also present we can emulate frexpl.
1824 d_sched_yield (d_pthread_y.U):
1825 This variable conditionally defines the HAS_SCHED_YIELD
1826 symbol if the sched_yield routine is available to yield
1827 the execution of the current thread.
1829 d_scm_rights (d_socket.U):
1830 This variable conditionally defines the HAS_SCM_RIGHTS symbol,
1831 which indicates that the SCM_RIGHTS is available. #ifdef is
1832 not enough because it may be an enum, glibc has been known to do this.
1834 d_SCNfldbl (longdblfio.U):
1835 This variable conditionally defines the PERL_PRIfldbl symbol, which
1836 indiciates that stdio has a symbol to scan long doubles.
1838 d_seekdir (d_readdir.U):
1839 This variable conditionally defines HAS_SEEKDIR if seekdir() is
1842 d_select (d_select.U):
1843 This variable conditionally defines HAS_SELECT if select() is
1844 available to select active file descriptors. A <sys/time.h>
1845 inclusion may be necessary for the timeout field.
1848 This variable conditionally defines the HAS_SEM symbol, which
1849 indicates that the entire sem*(2) library is present.
1851 d_semctl (d_semctl.U):
1852 This variable conditionally defines the HAS_SEMCTL symbol, which
1853 indicates to the C program that the semctl() routine is available.
1855 d_semctl_semid_ds (d_union_semun.U):
1856 This variable conditionally defines USE_SEMCTL_SEMID_DS, which
1857 indicates that struct semid_ds * is to be used for semctl IPC_STAT.
1859 d_semctl_semun (d_union_semun.U):
1860 This variable conditionally defines USE_SEMCTL_SEMUN, which
1861 indicates that union semun is to be used for semctl IPC_STAT.
1863 d_semget (d_semget.U):
1864 This variable conditionally defines the HAS_SEMGET symbol, which
1865 indicates to the C program that the semget() routine is available.
1867 d_semop (d_semop.U):
1868 This variable conditionally defines the HAS_SEMOP symbol, which
1869 indicates to the C program that the semop() routine is available.
1871 d_sendmsg (d_sendmsg.U):
1872 This variable conditionally defines the HAS_SENDMSG symbol, which
1873 indicates to the C program that the sendmsg() routine is available.
1875 d_setegid (d_setegid.U):
1876 This variable conditionally defines the HAS_SETEGID symbol, which
1877 indicates to the C program that the setegid() routine is available
1878 to change the effective gid of the current program.
1880 d_seteuid (d_seteuid.U):
1881 This variable conditionally defines the HAS_SETEUID symbol, which
1882 indicates to the C program that the seteuid() routine is available
1883 to change the effective uid of the current program.
1885 d_setgrent (d_setgrent.U):
1886 This variable conditionally defines the HAS_SETGRENT symbol, which
1887 indicates to the C program that the setgrent() routine is available
1888 for initializing sequential access to the group database.
1890 d_setgrent_r (d_setgrent_r.U):
1891 This variable conditionally defines the HAS_SETGRENT_R symbol,
1892 which indicates to the C program that the setgrent_r()
1893 routine is available.
1895 d_setgrps (d_setgrps.U):
1896 This variable conditionally defines the HAS_SETGROUPS symbol, which
1897 indicates to the C program that the setgroups() routine is available
1898 to set the list of process groups.
1900 d_sethent (d_sethent.U):
1901 This variable conditionally defines HAS_SETHOSTENT if sethostent() is
1904 d_sethostent_r (d_sethostent_r.U):
1905 This variable conditionally defines the HAS_SETHOSTENT_R symbol,
1906 which indicates to the C program that the sethostent_r()
1907 routine is available.
1909 d_setitimer (d_setitimer.U):
1910 This variable conditionally defines the HAS_SETITIMER symbol, which
1911 indicates to the C program that the setitimer() routine is available.
1913 d_setlinebuf (d_setlnbuf.U):
1914 This variable conditionally defines the HAS_SETLINEBUF symbol, which
1915 indicates to the C program that the setlinebuf() routine is available
1916 to change stderr or stdout from block-buffered or unbuffered to a
1919 d_setlocale (d_setlocale.U):
1920 This variable conditionally defines HAS_SETLOCALE if setlocale() is
1921 available to handle locale-specific ctype implementations.
1923 d_setlocale_r (d_setlocale_r.U):
1924 This variable conditionally defines the HAS_SETLOCALE_R symbol,
1925 which indicates to the C program that the setlocale_r()
1926 routine is available.
1928 d_setnent (d_setnent.U):
1929 This variable conditionally defines HAS_SETNETENT if setnetent() is
1932 d_setnetent_r (d_setnetent_r.U):
1933 This variable conditionally defines the HAS_SETNETENT_R symbol,
1934 which indicates to the C program that the setnetent_r()
1935 routine is available.
1937 d_setpent (d_setpent.U):
1938 This variable conditionally defines HAS_SETPROTOENT if setprotoent() is
1941 d_setpgid (d_setpgid.U):
1942 This variable conditionally defines the HAS_SETPGID symbol if the
1943 setpgid(pid, gpid) function is available to set process group ID.
1945 d_setpgrp (d_setpgrp.U):
1946 This variable conditionally defines HAS_SETPGRP if setpgrp() is
1947 available to set the current process group.
1949 d_setpgrp2 (d_setpgrp2.U):
1950 This variable conditionally defines the HAS_SETPGRP2 symbol, which
1951 indicates to the C program that the setpgrp2() (as in DG/UX) routine
1952 is available to set the current process group.
1954 d_setprior (d_setprior.U):
1955 This variable conditionally defines HAS_SETPRIORITY if setpriority()
1956 is available to set a process's priority.
1958 d_setproctitle (d_setproctitle.U):
1959 This variable conditionally defines the HAS_SETPROCTITLE symbol,
1960 which indicates to the C program that the setproctitle() routine
1963 d_setprotoent_r (d_setprotoent_r.U):
1964 This variable conditionally defines the HAS_SETPROTOENT_R symbol,
1965 which indicates to the C program that the setprotoent_r()
1966 routine is available.
1968 d_setpwent (d_setpwent.U):
1969 This variable conditionally defines the HAS_SETPWENT symbol, which
1970 indicates to the C program that the setpwent() routine is available
1971 for initializing sequential access to the passwd database.
1973 d_setpwent_r (d_setpwent_r.U):
1974 This variable conditionally defines the HAS_SETPWENT_R symbol,
1975 which indicates to the C program that the setpwent_r()
1976 routine is available.
1978 d_setregid (d_setregid.U):
1979 This variable conditionally defines HAS_SETREGID if setregid() is
1980 available to change the real and effective gid of the current
1983 d_setresgid (d_setregid.U):
1984 This variable conditionally defines HAS_SETRESGID if setresgid() is
1985 available to change the real, effective and saved gid of the current
1988 d_setresuid (d_setreuid.U):
1989 This variable conditionally defines HAS_SETREUID if setresuid() is
1990 available to change the real, effective and saved uid of the current
1993 d_setreuid (d_setreuid.U):
1994 This variable conditionally defines HAS_SETREUID if setreuid() is
1995 available to change the real and effective uid of the current
1998 d_setrgid (d_setrgid.U):
1999 This variable conditionally defines the HAS_SETRGID symbol, which
2000 indicates to the C program that the setrgid() routine is available
2001 to change the real gid of the current program.
2003 d_setruid (d_setruid.U):
2004 This variable conditionally defines the HAS_SETRUID symbol, which
2005 indicates to the C program that the setruid() routine is available
2006 to change the real uid of the current program.
2008 d_setsent (d_setsent.U):
2009 This variable conditionally defines HAS_SETSERVENT if setservent() is
2012 d_setservent_r (d_setservent_r.U):
2013 This variable conditionally defines the HAS_SETSERVENT_R symbol,
2014 which indicates to the C program that the setservent_r()
2015 routine is available.
2017 d_setsid (d_setsid.U):
2018 This variable conditionally defines HAS_SETSID if setsid() is
2019 available to set the process group ID.
2021 d_setvbuf (d_setvbuf.U):
2022 This variable conditionally defines the HAS_SETVBUF symbol, which
2023 indicates to the C program that the setvbuf() routine is available
2024 to change buffering on an open stdio stream.
2027 This variable conditionally defines the USE_SFIO symbol,
2028 and indicates whether sfio is available (and should be used).
2031 This variable conditionally defines the HAS_SHM symbol, which
2032 indicates that the entire shm*(2) library is present.
2034 d_shmat (d_shmat.U):
2035 This variable conditionally defines the HAS_SHMAT symbol, which
2036 indicates to the C program that the shmat() routine is available.
2038 d_shmatprototype (d_shmat.U):
2039 This variable conditionally defines the HAS_SHMAT_PROTOTYPE
2040 symbol, which indicates that sys/shm.h has a prototype for
2043 d_shmctl (d_shmctl.U):
2044 This variable conditionally defines the HAS_SHMCTL symbol, which
2045 indicates to the C program that the shmctl() routine is available.
2047 d_shmdt (d_shmdt.U):
2048 This variable conditionally defines the HAS_SHMDT symbol, which
2049 indicates to the C program that the shmdt() routine is available.
2051 d_shmget (d_shmget.U):
2052 This variable conditionally defines the HAS_SHMGET symbol, which
2053 indicates to the C program that the shmget() routine is available.
2055 d_sigaction (d_sigaction.U):
2056 This variable conditionally defines the HAS_SIGACTION symbol, which
2057 indicates that the Vr4 sigaction() routine is available.
2059 d_signbit (d_signbit.U):
2060 This variable conditionally defines the HAS_SIGNBIT symbol, which
2061 indicates to the C program that the signbit() routine is available
2062 and safe to use with perl's intern NV type.
2064 d_sigprocmask (d_sigprocmask.U):
2065 This variable conditionally defines HAS_SIGPROCMASK
2066 if sigprocmask() is available to examine or change the signal mask
2067 of the calling process.
2069 d_sigsetjmp (d_sigsetjmp.U):
2070 This variable conditionally defines the HAS_SIGSETJMP symbol,
2071 which indicates that the sigsetjmp() routine is available to
2072 call setjmp() and optionally save the process's signal mask.
2074 d_sitearch (sitearch.U):
2075 This variable conditionally defines SITEARCH to hold the pathname
2076 of architecture-dependent library files for $package. If
2077 $sitearch is the same as $archlib, then this is set to undef.
2079 d_snprintf (d_snprintf.U):
2080 This variable conditionally defines the HAS_SNPRINTF symbol, which
2081 indicates to the C program that the snprintf () library function
2084 d_sockatmark (d_sockatmark.U):
2085 This variable conditionally defines the HAS_SOCKATMARK symbol, which
2086 indicates to the C program that the sockatmark() routine is available.
2088 d_sockatmarkproto (d_sockatmarkproto.U):
2089 This variable conditionally defines the HAS_SOCKATMARK_PROTO symbol,
2090 which indicates to the C program that the system provides
2091 a prototype for the sockatmark() function. Otherwise, it is
2092 up to the program to supply one.
2094 d_socket (d_socket.U):
2095 This variable conditionally defines HAS_SOCKET, which indicates
2096 that the BSD socket interface is supported.
2098 d_socklen_t (d_socklen_t.U):
2099 This symbol will be defined if the C compiler supports socklen_t.
2101 d_sockpair (d_socket.U):
2102 This variable conditionally defines the HAS_SOCKETPAIR symbol, which
2103 indicates that the BSD socketpair() is supported.
2105 d_socks5_init (d_socks5_init.U):
2106 This variable conditionally defines the HAS_SOCKS5_INIT symbol, which
2107 indicates to the C program that the socks5_init() routine is available.
2109 d_sprintf_returns_strlen (d_sprintf_len.U):
2110 This variable defines whether sprintf returns the length of the string
2111 (as per the ANSI spec). Some C libraries retain compatibility with
2112 pre-ANSI C and return a pointer to the passed in buffer; for these
2113 this variable will be undef.
2115 d_sqrtl (d_sqrtl.U):
2116 This variable conditionally defines the HAS_SQRTL symbol, which
2117 indicates to the C program that the sqrtl() routine is available.
2119 d_srand48_r (d_srand48_r.U):
2120 This variable conditionally defines the HAS_SRAND48_R symbol,
2121 which indicates to the C program that the srand48_r()
2122 routine is available.
2124 d_srandom_r (d_srandom_r.U):
2125 This variable conditionally defines the HAS_SRANDOM_R symbol,
2126 which indicates to the C program that the srandom_r()
2127 routine is available.
2129 d_sresgproto (d_sresgproto.U):
2130 This variable conditionally defines the HAS_SETRESGID_PROTO symbol,
2131 which indicates to the C program that the system provides
2132 a prototype for the setresgid() function. Otherwise, it is
2133 up to the program to supply one.
2135 d_sresuproto (d_sresuproto.U):
2136 This variable conditionally defines the HAS_SETRESUID_PROTO symbol,
2137 which indicates to the C program that the system provides
2138 a prototype for the setresuid() function. Otherwise, it is
2139 up to the program to supply one.
2141 d_statblks (d_statblks.U):
2142 This variable conditionally defines USE_STAT_BLOCKS
2143 if this system has a stat structure declaring
2144 st_blksize and st_blocks.
2146 d_statfs_f_flags (d_statfs_f_flags.U):
2147 This variable conditionally defines the HAS_STRUCT_STATFS_F_FLAGS
2148 symbol, which indicates to struct statfs from has f_flags member.
2149 This kind of struct statfs is coming from sys/mount.h (BSD),
2150 not from sys/statfs.h (SYSV).
2152 d_statfs_s (d_statfs_s.U):
2153 This variable conditionally defines the HAS_STRUCT_STATFS symbol,
2154 which indicates that the struct statfs is supported.
2156 d_statvfs (d_statvfs.U):
2157 This variable conditionally defines the HAS_STATVFS symbol, which
2158 indicates to the C program that the statvfs() routine is available.
2160 d_stdio_cnt_lval (d_stdstdio.U):
2161 This variable conditionally defines STDIO_CNT_LVALUE if the
2162 FILE_cnt macro can be used as an lvalue.
2164 d_stdio_ptr_lval (d_stdstdio.U):
2165 This variable conditionally defines STDIO_PTR_LVALUE if the
2166 FILE_ptr macro can be used as an lvalue.
2168 d_stdio_ptr_lval_nochange_cnt (d_stdstdio.U):
2169 This symbol is defined if using the FILE_ptr macro as an lvalue
2170 to increase the pointer by n leaves File_cnt(fp) unchanged.
2172 d_stdio_ptr_lval_sets_cnt (d_stdstdio.U):
2173 This symbol is defined if using the FILE_ptr macro as an lvalue
2174 to increase the pointer by n has the side effect of decreasing the
2175 value of File_cnt(fp) by n.
2177 d_stdio_stream_array (stdio_streams.U):
2178 This variable tells whether there is an array holding
2181 d_stdiobase (d_stdstdio.U):
2182 This variable conditionally defines USE_STDIO_BASE if this system
2183 has a FILE structure declaring a usable _base field (or equivalent)
2186 d_stdstdio (d_stdstdio.U):
2187 This variable conditionally defines USE_STDIO_PTR if this system
2188 has a FILE structure declaring usable _ptr and _cnt fields (or
2189 equivalent) in stdio.h.
2191 d_strchr (d_strchr.U):
2192 This variable conditionally defines HAS_STRCHR if strchr() and
2193 strrchr() are available for string searching.
2195 d_strcoll (d_strcoll.U):
2196 This variable conditionally defines HAS_STRCOLL if strcoll() is
2197 available to compare strings using collating information.
2199 d_strctcpy (d_strctcpy.U):
2200 This variable conditionally defines the USE_STRUCT_COPY symbol, which
2201 indicates to the C program that this C compiler knows how to copy
2204 d_strerrm (d_strerror.U):
2205 This variable holds what Strerrr is defined as to translate an error
2206 code condition into an error message string. It could be 'strerror'
2207 or a more complex macro emulating strrror with sys_errlist[], or the
2208 "unknown" string when both strerror and sys_errlist are missing.
2210 d_strerror (d_strerror.U):
2211 This variable conditionally defines HAS_STRERROR if strerror() is
2212 available to translate error numbers to strings.
2214 d_strerror_r (d_strerror_r.U):
2215 This variable conditionally defines the HAS_STRERROR_R symbol,
2216 which indicates to the C program that the strerror_r()
2217 routine is available.
2219 d_strftime (d_strftime.U):
2220 This variable conditionally defines the HAS_STRFTIME symbol, which
2221 indicates to the C program that the strftime() routine is available.
2223 d_strlcat (d_strlcat.U):
2224 This variable conditionally defines the HAS_STRLCAT symbol, which
2225 indicates to the C program that the strlcat () routine is available.
2227 d_strlcpy (d_strlcpy.U):
2228 This variable conditionally defines the HAS_STRLCPY symbol, which
2229 indicates to the C program that the strlcpy () routine is available.
2231 d_strtod (d_strtod.U):
2232 This variable conditionally defines the HAS_STRTOD symbol, which
2233 indicates to the C program that the strtod() routine is available
2234 to provide better numeric string conversion than atof().
2236 d_strtol (d_strtol.U):
2237 This variable conditionally defines the HAS_STRTOL symbol, which
2238 indicates to the C program that the strtol() routine is available
2239 to provide better numeric string conversion than atoi() and friends.
2241 d_strtold (d_strtold.U):
2242 This variable conditionally defines the HAS_STRTOLD symbol, which
2243 indicates to the C program that the strtold() routine is available.
2245 d_strtoll (d_strtoll.U):
2246 This variable conditionally defines the HAS_STRTOLL symbol, which
2247 indicates to the C program that the strtoll() routine is available.
2249 d_strtoq (d_strtoq.U):
2250 This variable conditionally defines the HAS_STRTOQ symbol, which
2251 indicates to the C program that the strtoq() routine is available.
2253 d_strtoul (d_strtoul.U):
2254 This variable conditionally defines the HAS_STRTOUL symbol, which
2255 indicates to the C program that the strtoul() routine is available
2256 to provide conversion of strings to unsigned long.
2258 d_strtoull (d_strtoull.U):
2259 This variable conditionally defines the HAS_STRTOULL symbol, which
2260 indicates to the C program that the strtoull() routine is available.
2262 d_strtouq (d_strtouq.U):
2263 This variable conditionally defines the HAS_STRTOUQ symbol, which
2264 indicates to the C program that the strtouq() routine is available.
2266 d_strxfrm (d_strxfrm.U):
2267 This variable conditionally defines HAS_STRXFRM if strxfrm() is
2268 available to transform strings.
2270 d_suidsafe (d_dosuid.U):
2271 This variable conditionally defines SETUID_SCRIPTS_ARE_SECURE_NOW
2272 if setuid scripts can be secure. This test looks in /dev/fd/.
2274 d_symlink (d_symlink.U):
2275 This variable conditionally defines the HAS_SYMLINK symbol, which
2276 indicates to the C program that the symlink() routine is available
2277 to create symbolic links.
2279 d_syscall (d_syscall.U):
2280 This variable conditionally defines HAS_SYSCALL if syscall() is
2281 available call arbitrary system calls.
2283 d_syscallproto (d_syscallproto.U):
2284 This variable conditionally defines the HAS_SYSCALL_PROTO symbol,
2285 which indicates to the C program that the system provides
2286 a prototype for the syscall() function. Otherwise, it is
2287 up to the program to supply one.
2289 d_sysconf (d_sysconf.U):
2290 This variable conditionally defines the HAS_SYSCONF symbol, which
2291 indicates to the C program that the sysconf() routine is available
2292 to determine system related limits and options.
2294 d_sysernlst (d_strerror.U):
2295 This variable conditionally defines HAS_SYS_ERRNOLIST if sys_errnolist[]
2296 is available to translate error numbers to the symbolic name.
2298 d_syserrlst (d_strerror.U):
2299 This variable conditionally defines HAS_SYS_ERRLIST if sys_errlist[] is
2300 available to translate error numbers to strings.
2302 d_system (d_system.U):
2303 This variable conditionally defines HAS_SYSTEM if system() is
2304 available to issue a shell command.
2306 d_tcgetpgrp (d_tcgtpgrp.U):
2307 This variable conditionally defines the HAS_TCGETPGRP symbol, which
2308 indicates to the C program that the tcgetpgrp() routine is available.
2309 to get foreground process group ID.
2311 d_tcsetpgrp (d_tcstpgrp.U):
2312 This variable conditionally defines the HAS_TCSETPGRP symbol, which
2313 indicates to the C program that the tcsetpgrp() routine is available
2314 to set foreground process group ID.
2316 d_telldir (d_readdir.U):
2317 This variable conditionally defines HAS_TELLDIR if telldir() is
2320 d_telldirproto (d_telldirproto.U):
2321 This variable conditionally defines the HAS_TELLDIR_PROTO symbol,
2322 which indicates to the C program that the system provides
2323 a prototype for the telldir() function. Otherwise, it is
2324 up to the program to supply one.
2327 This variable conditionally defines the HAS_TIME symbol, which indicates
2328 that the time() routine exists. The time() routine is normaly
2329 provided on UNIX systems.
2331 d_timegm (d_timegm.U):
2332 This variable conditionally defines the HAS_TIMEGM symbol, which
2333 indicates to the C program that the timegm () routine is available.
2335 d_times (d_times.U):
2336 This variable conditionally defines the HAS_TIMES symbol, which indicates
2337 that the times() routine exists. The times() routine is normaly
2338 provided on UNIX systems. You may have to include <sys/times.h>.
2340 d_tm_tm_gmtoff (i_time.U):
2341 This variable conditionally defines HAS_TM_TM_GMTOFF, which indicates
2342 indicates to the C program that the struct tm has the tm_gmtoff field.
2344 d_tm_tm_zone (i_time.U):
2345 This variable conditionally defines HAS_TM_TM_ZONE, which indicates
2346 indicates to the C program that the struct tm has the tm_zone field.
2348 d_tmpnam_r (d_tmpnam_r.U):
2349 This variable conditionally defines the HAS_TMPNAM_R symbol,
2350 which indicates to the C program that the tmpnam_r()
2351 routine is available.
2353 d_truncate (d_truncate.U):
2354 This variable conditionally defines HAS_TRUNCATE if truncate() is
2355 available to truncate files.
2357 d_ttyname_r (d_ttyname_r.U):
2358 This variable conditionally defines the HAS_TTYNAME_R symbol,
2359 which indicates to the C program that the ttyname_r()
2360 routine is available.
2362 d_tzname (d_tzname.U):
2363 This variable conditionally defines HAS_TZNAME if tzname[] is
2364 available to access timezone names.
2366 d_u32align (d_u32align.U):
2367 This variable tells whether you must access character data
2368 through U32-aligned pointers.
2370 d_ualarm (d_ualarm.U):
2371 This variable conditionally defines the HAS_UALARM symbol, which
2372 indicates to the C program that the ualarm() routine is available.
2374 d_umask (d_umask.U):
2375 This variable conditionally defines the HAS_UMASK symbol, which
2376 indicates to the C program that the umask() routine is available.
2377 to set and get the value of the file creation mask.
2379 d_uname (d_gethname.U):
2380 This variable conditionally defines the HAS_UNAME symbol, which
2381 indicates to the C program that the uname() routine may be
2382 used to derive the host name.
2384 d_union_semun (d_union_semun.U):
2385 This variable conditionally defines HAS_UNION_SEMUN if the
2386 union semun is defined by including <sys/sem.h>.
2388 d_unordered (d_unordered.U):
2389 This variable conditionally defines the HAS_UNORDERED symbol, which
2390 indicates to the C program that the unordered() routine is available.
2392 d_unsetenv (d_unsetenv.U):
2393 This variable conditionally defines the HAS_UNSETENV symbol, which
2394 indicates to the C program that the unsetenv () routine is available.
2396 d_usleep (d_usleep.U):
2397 This variable conditionally defines HAS_USLEEP if usleep() is
2398 available to do high granularity sleeps.
2400 d_usleepproto (d_usleepproto.U):
2401 This variable conditionally defines the HAS_USLEEP_PROTO symbol,
2402 which indicates to the C program that the system provides
2403 a prototype for the usleep() function. Otherwise, it is
2404 up to the program to supply one.
2406 d_ustat (d_ustat.U):
2407 This variable conditionally defines HAS_USTAT if ustat() is
2408 available to query file system statistics by dev_t.
2410 d_vendorarch (vendorarch.U):
2411 This variable conditionally defined PERL_VENDORARCH.
2413 d_vendorbin (vendorbin.U):
2414 This variable conditionally defines PERL_VENDORBIN.
2416 d_vendorlib (vendorlib.U):
2417 This variable conditionally defines PERL_VENDORLIB.
2419 d_vendorscript (vendorscript.U):
2420 This variable conditionally defines PERL_VENDORSCRIPT.
2422 d_vfork (d_vfork.U):
2423 This variable conditionally defines the HAS_VFORK symbol, which
2424 indicates the vfork() routine is available.
2426 d_void_closedir (d_closedir.U):
2427 This variable conditionally defines VOID_CLOSEDIR if closedir()
2428 does not return a value.
2430 d_voidsig (d_voidsig.U):
2431 This variable conditionally defines VOIDSIG if this system
2432 declares "void (*signal(...))()" in signal.h. The old way was to
2433 declare it as "int (*signal(...))()".
2435 d_voidtty (i_sysioctl.U):
2436 This variable conditionally defines USE_IOCNOTTY to indicate that the
2437 ioctl() call with TIOCNOTTY should be used to void tty association.
2438 Otherwise (on USG probably), it is enough to close the standard file
2439 decriptors and do a setpgrp().
2441 d_volatile (d_volatile.U):
2442 This variable conditionally defines the HASVOLATILE symbol, which
2443 indicates to the C program that this C compiler knows about the
2444 volatile declaration.
2446 d_vprintf (d_vprintf.U):
2447 This variable conditionally defines the HAS_VPRINTF symbol, which
2448 indicates to the C program that the vprintf() routine is available
2449 to printf with a pointer to an argument list.
2451 d_vsnprintf (d_snprintf.U):
2452 This variable conditionally defines the HAS_VSNPRINTF symbol, which
2453 indicates to the C program that the vsnprintf () library function
2456 d_wait4 (d_wait4.U):
2457 This variable conditionally defines the HAS_WAIT4 symbol, which
2458 indicates the wait4() routine is available.
2460 d_waitpid (d_waitpid.U):
2461 This variable conditionally defines HAS_WAITPID if waitpid() is
2462 available to wait for child process.
2464 d_wcstombs (d_wcstombs.U):
2465 This variable conditionally defines the HAS_WCSTOMBS symbol, which
2466 indicates to the C program that the wcstombs() routine is available
2467 to convert wide character strings to multibyte strings.
2469 d_wctomb (d_wctomb.U):
2470 This variable conditionally defines the HAS_WCTOMB symbol, which
2471 indicates to the C program that the wctomb() routine is available
2472 to convert a wide character to a multibyte.
2474 d_writev (d_writev.U):
2475 This variable conditionally defines the HAS_WRITEV symbol, which
2476 indicates to the C program that the writev() routine is available.
2479 This variable conditionally defines the symbol XENIX, which alerts
2480 the C program that it runs under Xenix.
2483 This variable is used internally by Configure to determine the
2484 full pathname (if any) of the date program. After Configure runs,
2485 the value is reset to a plain "date" and is not useful.
2487 db_hashtype (i_db.U):
2488 This variable contains the type of the hash structure element
2489 in the <db.h> header file. In older versions of DB, it was
2490 int, while in newer ones it is u_int32_t.
2492 db_prefixtype (i_db.U):
2493 This variable contains the type of the prefix structure element
2494 in the <db.h> header file. In older versions of DB, it was
2495 int, while in newer ones it is size_t.
2497 db_version_major (i_db.U):
2498 This variable contains the major version number of
2499 Berkeley DB found in the <db.h> header file.
2501 db_version_minor (i_db.U):
2502 This variable contains the minor version number of
2503 Berkeley DB found in the <db.h> header file.
2504 For DB version 1 this is always 0.
2506 db_version_patch (i_db.U):
2507 This variable contains the patch version number of
2508 Berkeley DB found in the <db.h> header file.
2509 For DB version 1 this is always 0.
2511 defvoidused (voidflags.U):
2512 This variable contains the default value of the VOIDUSED symbol (15).
2514 direntrytype (i_dirent.U):
2515 This symbol is set to 'struct direct' or 'struct dirent' depending on
2516 whether dirent is available or not. You should use this pseudo type to
2517 portably declare your directory entries.
2520 This variable contains the extension that is to be used for the
2521 dynamically loaded modules that perl generaties.
2524 This variable contains the name of the dynamic loading file that
2525 will be used with the package.
2527 doublesize (doublesize.U):
2528 This variable contains the value of the DOUBLESIZE symbol, which
2529 indicates to the C program how many bytes there are in a double.
2531 drand01 (randfunc.U):
2532 Indicates the macro to be used to generate normalized
2533 random numbers. Uses randfunc, often divided by
2534 (double) (((unsigned long) 1 << randbits)) in order to
2535 normalize the result.
2536 In C programs, the macro 'Drand01' is mapped to drand01.
2538 drand48_r_proto (d_drand48_r.U):
2539 This variable encodes the prototype of drand48_r.
2540 It is zero if d_drand48_r is undef, and one of the
2541 REENTRANT_PROTO_T_ABC macros of reentr.h if d_drand48_r
2544 dtrace (usedtrace.U):
2545 This variable holds the location of the dtrace executable.
2547 dynamic_ext (Extensions.U):
2548 This variable holds a list of XS extension files we want to
2549 link dynamically into the package. It is used by Makefile.
2551 eagain (nblock_io.U):
2552 This variable bears the symbolic errno code set by read() when no
2553 data is present on the file and non-blocking I/O was enabled (otherwise,
2554 read() blocks naturally).
2557 This variable conditionally defines EBCDIC if this
2558 system uses EBCDIC encoding. Among other things, this
2559 means that the character ranges are not contiguous.
2563 This variable is used internally by Configure to determine the
2564 full pathname (if any) of the echo program. After Configure runs,
2565 the value is reset to a plain "echo" and is not useful.
2568 This variable is used internally by Configure to determine the
2569 full pathname (if any) of the egrep program. After Configure runs,
2570 the value is reset to a plain "egrep" and is not useful.
2573 This variable is defined but not used by Configure.
2574 The value is the empty string and is not useful.
2576 endgrent_r_proto (d_endgrent_r.U):
2577 This variable encodes the prototype of endgrent_r.
2578 It is zero if d_endgrent_r is undef, and one of the
2579 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endgrent_r
2582 endhostent_r_proto (d_endhostent_r.U):
2583 This variable encodes the prototype of endhostent_r.
2584 It is zero if d_endhostent_r is undef, and one of the
2585 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endhostent_r
2588 endnetent_r_proto (d_endnetent_r.U):
2589 This variable encodes the prototype of endnetent_r.
2590 It is zero if d_endnetent_r is undef, and one of the
2591 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endnetent_r
2594 endprotoent_r_proto (d_endprotoent_r.U):
2595 This variable encodes the prototype of endprotoent_r.
2596 It is zero if d_endprotoent_r is undef, and one of the
2597 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endprotoent_r
2600 endpwent_r_proto (d_endpwent_r.U):
2601 This variable encodes the prototype of endpwent_r.
2602 It is zero if d_endpwent_r is undef, and one of the
2603 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endpwent_r
2606 endservent_r_proto (d_endservent_r.U):
2607 This variable encodes the prototype of endservent_r.
2608 It is zero if d_endservent_r is undef, and one of the
2609 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endservent_r
2613 When running under Eunice this variable contains a command which will
2614 convert a shell script to the proper form of text file for it to be
2615 executable by the shell. On other systems it is a no-op.
2618 This is an old synonym for _exe.
2621 This variable is used internally by Configure to determine the
2622 full pathname (if any) of the expr program. After Configure runs,
2623 the value is reset to a plain "expr" and is not useful.
2625 extensions (Extensions.U):
2626 This variable holds a list of all extension files (both XS and
2627 non-xs linked into the package. It is propagated to Config.pm
2628 and is typically used to test whether a particular extesion
2632 ANSI C requires 'extern' where C++ requires 'extern "C"'. This
2633 variable can be used in Configure to do the right thing.
2636 This variable holds a list of extra modules to install.
2638 fflushall (fflushall.U):
2639 This symbol, if defined, tells that to flush
2640 all pending stdio output one must loop through all
2641 the stdio file handles stored in an array and fflush them.
2642 Note that if fflushNULL is defined, fflushall will not
2643 even be probed for and will be left undefined.
2645 fflushNULL (fflushall.U):
2646 This symbol, if defined, tells that fflush(NULL) does flush
2647 all pending stdio output.
2650 This variable is defined but not used by Configure.
2651 The value is the empty string and is not useful.
2653 firstmakefile (Unix.U):
2654 This variable defines the first file searched by make. On unix,
2655 it is makefile (then Makefile). On case-insensitive systems,
2656 it might be something else. This is only used to deal with
2657 convoluted make depend tricks.
2660 This variable is defined but not used by Configure.
2661 The value is the empty string and is not useful.
2663 fpossize (fpossize.U):
2664 This variable contains the size of a fpostype in bytes.
2666 fpostype (fpostype.U):
2667 This variable defines Fpos_t to be something like fpos_t, long,
2668 uint, or whatever type is used to declare file positions in libc.
2670 freetype (mallocsrc.U):
2671 This variable contains the return type of free(). It is usually
2672 void, but occasionally int.
2675 This variable contains the command used by Configure
2676 to copy files from the target host. Useful and available
2677 only during Perl build.
2678 The string ':' if not cross-compiling.
2681 This variable contains the full pathname to 'ar', whether or
2682 not the user has specified 'portability'. This is only used
2686 This variable contains the full pathname to 'csh', whether or
2687 not the user has specified 'portability'. This is only used
2688 in the compiled C program, and we assume that all systems which
2689 can share this executable will have the same full pathname to
2692 full_sed (Loc_sed.U):
2693 This variable contains the full pathname to 'sed', whether or
2694 not the user has specified 'portability'. This is only used
2695 in the compiled C program, and we assume that all systems which
2696 can share this executable will have the same full pathname to
2699 gccansipedantic (gccvers.U):
2700 If GNU cc (gcc) is used, this variable will enable (if set) the
2701 -ansi and -pedantic ccflags for building core files (through
2702 cflags script). (See Porting/pumpkin.pod for full description).
2704 gccosandvers (gccvers.U):
2705 If GNU cc (gcc) is used, this variable holds the operating system
2706 and version used to compile gcc. It is set to '' if not gcc,
2707 or if nothing useful can be parsed as the os version.
2709 gccversion (gccvers.U):
2710 If GNU cc (gcc) is used, this variable holds '1' or '2' to
2711 indicate whether the compiler is version 1 or 2. This is used in
2712 setting some of the default cflags. It is set to '' if not gcc.
2714 getgrent_r_proto (d_getgrent_r.U):
2715 This variable encodes the prototype of getgrent_r.
2716 It is zero if d_getgrent_r is undef, and one of the
2717 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrent_r
2720 getgrgid_r_proto (d_getgrgid_r.U):
2721 This variable encodes the prototype of getgrgid_r.
2722 It is zero if d_getgrgid_r is undef, and one of the
2723 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrgid_r
2726 getgrnam_r_proto (d_getgrnam_r.U):
2727 This variable encodes the prototype of getgrnam_r.
2728 It is zero if d_getgrnam_r is undef, and one of the
2729 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrnam_r
2732 gethostbyaddr_r_proto (d_gethostbyaddr_r.U):
2733 This variable encodes the prototype of gethostbyaddr_r.
2734 It is zero if d_gethostbyaddr_r is undef, and one of the
2735 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyaddr_r
2738 gethostbyname_r_proto (d_gethostbyname_r.U):
2739 This variable encodes the prototype of gethostbyname_r.
2740 It is zero if d_gethostbyname_r is undef, and one of the
2741 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyname_r
2744 gethostent_r_proto (d_gethostent_r.U):
2745 This variable encodes the prototype of gethostent_r.
2746 It is zero if d_gethostent_r is undef, and one of the
2747 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostent_r
2750 getlogin_r_proto (d_getlogin_r.U):
2751 This variable encodes the prototype of getlogin_r.
2752 It is zero if d_getlogin_r is undef, and one of the
2753 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getlogin_r
2756 getnetbyaddr_r_proto (d_getnetbyaddr_r.U):
2757 This variable encodes the prototype of getnetbyaddr_r.
2758 It is zero if d_getnetbyaddr_r is undef, and one of the
2759 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyaddr_r
2762 getnetbyname_r_proto (d_getnetbyname_r.U):
2763 This variable encodes the prototype of getnetbyname_r.
2764 It is zero if d_getnetbyname_r is undef, and one of the
2765 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyname_r
2768 getnetent_r_proto (d_getnetent_r.U):
2769 This variable encodes the prototype of getnetent_r.
2770 It is zero if d_getnetent_r is undef, and one of the
2771 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetent_r
2774 getprotobyname_r_proto (d_getprotobyname_r.U):
2775 This variable encodes the prototype of getprotobyname_r.
2776 It is zero if d_getprotobyname_r is undef, and one of the
2777 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobyname_r
2780 getprotobynumber_r_proto (d_getprotobynumber_r.U):
2781 This variable encodes the prototype of getprotobynumber_r.
2782 It is zero if d_getprotobynumber_r is undef, and one of the
2783 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobynumber_r
2786 getprotoent_r_proto (d_getprotoent_r.U):
2787 This variable encodes the prototype of getprotoent_r.
2788 It is zero if d_getprotoent_r is undef, and one of the
2789 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotoent_r
2792 getpwent_r_proto (d_getpwent_r.U):
2793 This variable encodes the prototype of getpwent_r.
2794 It is zero if d_getpwent_r is undef, and one of the
2795 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwent_r
2798 getpwnam_r_proto (d_getpwnam_r.U):
2799 This variable encodes the prototype of getpwnam_r.
2800 It is zero if d_getpwnam_r is undef, and one of the
2801 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwnam_r
2804 getpwuid_r_proto (d_getpwuid_r.U):
2805 This variable encodes the prototype of getpwuid_r.
2806 It is zero if d_getpwuid_r is undef, and one of the
2807 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwuid_r
2810 getservbyname_r_proto (d_getservbyname_r.U):
2811 This variable encodes the prototype of getservbyname_r.
2812 It is zero if d_getservbyname_r is undef, and one of the
2813 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyname_r
2816 getservbyport_r_proto (d_getservbyport_r.U):
2817 This variable encodes the prototype of getservbyport_r.
2818 It is zero if d_getservbyport_r is undef, and one of the
2819 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyport_r
2822 getservent_r_proto (d_getservent_r.U):
2823 This variable encodes the prototype of getservent_r.
2824 It is zero if d_getservent_r is undef, and one of the
2825 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservent_r
2828 getspnam_r_proto (d_getspnam_r.U):
2829 This variable encodes the prototype of getspnam_r.
2830 It is zero if d_getspnam_r is undef, and one of the
2831 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getspnam_r
2835 This variable contains the format string used for printing a Gid_t.
2837 gidsign (gidsign.U):
2838 This variable contains the signedness of a gidtype.
2839 1 for unsigned, -1 for signed.
2841 gidsize (gidsize.U):
2842 This variable contains the size of a gidtype in bytes.
2844 gidtype (gidtype.U):
2845 This variable defines Gid_t to be something like gid_t, int,
2846 ushort, or whatever type is used to declare the return type
2847 of getgid(). Typically, it is the type of group ids in the kernel.
2850 This variable holds the general path (space-separated) used to
2851 find libraries. It may contain directories that do not exist on
2852 this platform, libpth is the cleaned-up version.
2855 This variable is used internally by Configure to determine the
2856 full pathname (if any) of the gmake program. After Configure runs,
2857 the value is reset to a plain "gmake" and is not useful.
2859 gmtime_r_proto (d_gmtime_r.U):
2860 This variable encodes the prototype of gmtime_r.
2861 It is zero if d_gmtime_r is undef, and one of the
2862 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gmtime_r
2865 gnulibc_version (d_gnulibc.U):
2866 This variable contains the version number of the GNU C library.
2867 It is usually something like '2.2.5'. It is a plain '' if this
2868 is not the GNU C library, or if the version is unknown.
2871 This variable is used internally by Configure to determine the
2872 full pathname (if any) of the grep program. After Configure runs,
2873 the value is reset to a plain "grep" and is not useful.
2876 This variable contains a command that produces the text of the
2877 /etc/group file. This is normally "cat /etc/group", but can be
2878 "ypcat group" when NIS is used.
2879 On some systems, such as os390, there may be no equivalent
2880 command, in which case this variable is unset.
2882 groupstype (groupstype.U):
2883 This variable defines Groups_t to be something like gid_t, int,
2884 ushort, or whatever type is used for the second argument to
2885 getgroups() and setgroups(). Usually, this is the same as
2886 gidtype (gid_t), but sometimes it isn't.
2889 This variable is used internally by Configure to determine the
2890 full pathname (if any) of the gzip program. After Configure runs,
2891 the value is reset to a plain "gzip" and is not useful.
2893 h_fcntl (h_fcntl.U):
2894 This is variable gets set in various places to tell i_fcntl that
2895 <fcntl.h> should be included.
2897 h_sysfile (h_sysfile.U):
2898 This is variable gets set in various places to tell i_sys_file that
2899 <sys/file.h> should be included.
2902 Gives the type of hints used for previous answers. May be one of
2903 "default", "recommended" or "previous".
2906 This variable contains a command that produces the text of the
2907 /etc/hosts file. This is normally "cat /etc/hosts", but can be
2908 "ypcat hosts" when NIS is used.
2909 On some systems, such as os390, there may be no equivalent
2910 command, in which case this variable is unset.
2912 html1dir (html1dir.U):
2913 This variable contains the name of the directory in which html
2914 source pages are to be put. This directory is for pages
2915 that describe whole programs, not libraries or modules. It
2916 is intended to correspond roughly to section 1 of the Unix
2919 html1direxp (html1dir.U):
2920 This variable is the same as the html1dir variable, but is filename
2921 expanded at configuration time, for convenient use in makefiles.
2923 html3dir (html3dir.U):
2924 This variable contains the name of the directory in which html
2925 source pages are to be put. This directory is for pages
2926 that describe libraries or modules. It is intended to
2927 correspond roughly to section 3 of the Unix manuals.
2929 html3direxp (html3dir.U):
2930 This variable is the same as the html3dir variable, but is filename
2931 expanded at configuration time, for convenient use in makefiles.
2934 This variable is the size of an I16 in bytes.
2937 This variable contains the C type used for Perl's I16.
2940 This variable is the size of an I32 in bytes.
2943 This variable contains the C type used for Perl's I32.
2946 This variable is the size of an I64 in bytes.
2949 This variable contains the C type used for Perl's I64.
2952 This variable is the size of an I8 in bytes.
2955 This variable contains the C type used for Perl's I8.
2957 i_arpainet (i_arpainet.U):
2958 This variable conditionally defines the I_ARPA_INET symbol,
2959 and indicates whether a C program should include <arpa/inet.h>.
2961 i_assert (i_assert.U):
2962 This variable conditionally defines the I_ASSERT symbol, which
2963 indicates to the C program that <assert.h> exists and could be
2966 i_bsdioctl (i_sysioctl.U):
2967 This variable conditionally defines the I_SYS_BSDIOCTL symbol, which
2968 indicates to the C program that <sys/bsdioctl.h> exists and should
2971 i_crypt (i_crypt.U):
2972 This variable conditionally defines the I_CRYPT symbol, and indicates
2973 whether a C program should include <crypt.h>.
2976 This variable conditionally defines the I_DB symbol, and indicates
2977 whether a C program may include Berkeley's DB include file <db.h>.
2980 This variable conditionally defines the I_DBM symbol, which
2981 indicates to the C program that <dbm.h> exists and should
2984 i_dirent (i_dirent.U):
2985 This variable conditionally defines I_DIRENT, which indicates
2986 to the C program that it should include <dirent.h>.
2989 This variable conditionally defines the I_DLD symbol, which
2990 indicates to the C program that <dld.h> (GNU dynamic loading)
2991 exists and should be included.
2993 i_dlfcn (i_dlfcn.U):
2994 This variable conditionally defines the I_DLFCN symbol, which
2995 indicates to the C program that <dlfcn.h> exists and should
2998 i_fcntl (i_fcntl.U):
2999 This variable controls the value of I_FCNTL (which tells
3000 the C program to include <fcntl.h>).
3002 i_float (i_float.U):
3003 This variable conditionally defines the I_FLOAT symbol, and indicates
3004 whether a C program may include <float.h> to get symbols like DBL_MAX
3005 or DBL_MIN, i.e. machine dependent floating point values.
3008 This variable conditionally defines the I_FP symbol, and indicates
3009 whether a C program should include <fp.h>.
3011 i_fp_class (i_fp_class.U):
3012 This variable conditionally defines the I_FP_CLASS symbol, and indicates
3013 whether a C program should include <fp_class.h>.
3016 This variable conditionally defines the I_GDBM symbol, which
3017 indicates to the C program that <gdbm.h> exists and should
3020 i_gdbm_ndbm (i_ndbm.U):
3021 This variable conditionally defines the I_GDBM_NDBM symbol, which
3022 indicates to the C program that <gdbm-ndbm.h> exists and should
3023 be included. This is the location of the ndbm.h compatibility file
3026 i_gdbmndbm (i_ndbm.U):
3027 This variable conditionally defines the I_GDBMNDBM symbol, which
3028 indicates to the C program that <gdbm/ndbm.h> exists and should
3029 be included. This was the location of the ndbm.h compatibility file
3033 This variable conditionally defines the I_GRP symbol, and indicates
3034 whether a C program should include <grp.h>.
3036 i_ieeefp (i_ieeefp.U):
3037 This variable conditionally defines the I_IEEEFP symbol, and indicates
3038 whether a C program should include <ieeefp.h>.
3040 i_inttypes (i_inttypes.U):
3041 This variable conditionally defines the I_INTTYPES symbol,
3042 and indicates whether a C program should include <inttypes.h>.
3044 i_langinfo (i_langinfo.U):
3045 This variable conditionally defines the I_LANGINFO symbol,
3046 and indicates whether a C program should include <langinfo.h>.
3048 i_libutil (i_libutil.U):
3049 This variable conditionally defines the I_LIBUTIL symbol, and indicates
3050 whether a C program should include <libutil.h>.
3052 i_limits (i_limits.U):
3053 This variable conditionally defines the I_LIMITS symbol, and indicates
3054 whether a C program may include <limits.h> to get symbols like WORD_BIT
3057 i_locale (i_locale.U):
3058 This variable conditionally defines the I_LOCALE symbol,
3059 and indicates whether a C program should include <locale.h>.
3061 i_machcthr (i_machcthr.U):
3062 This variable conditionally defines the I_MACH_CTHREADS symbol,
3063 and indicates whether a C program should include <mach/cthreads.h>.
3065 i_malloc (i_malloc.U):
3066 This variable conditionally defines the I_MALLOC symbol, and indicates
3067 whether a C program should include <malloc.h>.
3069 i_mallocmalloc (i_mallocmalloc.U):
3070 This variable conditionally defines the I_MALLOCMALLOC symbol,
3071 and indicates whether a C program should include <malloc/malloc.h>.
3074 This variable conditionally defines the I_MATH symbol, and indicates
3075 whether a C program may include <math.h>.
3077 i_memory (i_memory.U):
3078 This variable conditionally defines the I_MEMORY symbol, and indicates
3079 whether a C program should include <memory.h>.
3081 i_mntent (i_mntent.U):
3082 This variable conditionally defines the I_MNTENT symbol, and indicates
3083 whether a C program should include <mntent.h>.
3086 This variable conditionally defines the I_NDBM symbol, which
3087 indicates to the C program that <ndbm.h> exists and should
3090 i_netdb (i_netdb.U):
3091 This variable conditionally defines the I_NETDB symbol, and indicates
3092 whether a C program should include <netdb.h>.
3094 i_neterrno (i_neterrno.U):
3095 This variable conditionally defines the I_NET_ERRNO symbol, which
3096 indicates to the C program that <net/errno.h> exists and should
3099 i_netinettcp (i_netinettcp.U):
3100 This variable conditionally defines the I_NETINET_TCP symbol,
3101 and indicates whether a C program should include <netinet/tcp.h>.
3104 This variable conditionally defines I_NETINET_IN, which indicates
3105 to the C program that it should include <netinet/in.h>. Otherwise,
3106 you may try <sys/in.h>.
3109 This variable conditionally defines the I_POLL symbol, and indicates
3110 whether a C program should include <poll.h>.
3113 This variable conditionally defines the I_PROT symbol, and indicates
3114 whether a C program should include <prot.h>.
3116 i_pthread (i_pthread.U):
3117 This variable conditionally defines the I_PTHREAD symbol,
3118 and indicates whether a C program should include <pthread.h>.
3121 This variable conditionally defines I_PWD, which indicates
3122 to the C program that it should include <pwd.h>.
3124 i_rpcsvcdbm (i_dbm.U):
3125 This variable conditionally defines the I_RPCSVC_DBM symbol, which
3126 indicates to the C program that <rpcsvc/dbm.h> exists and should
3127 be included. Some System V systems might need this instead of <dbm.h>.
3130 This variable conditionally defines the I_SFIO symbol,
3131 and indicates whether a C program should include <sfio.h>.
3133 i_sgtty (i_termio.U):
3134 This variable conditionally defines the I_SGTTY symbol, which
3135 indicates to the C program that it should include <sgtty.h> rather
3138 i_shadow (i_shadow.U):
3139 This variable conditionally defines the I_SHADOW symbol, and indicates
3140 whether a C program should include <shadow.h>.
3142 i_socks (i_socks.U):
3143 This variable conditionally defines the I_SOCKS symbol, and indicates
3144 whether a C program should include <socks.h>.
3146 i_stdarg (i_varhdr.U):
3147 This variable conditionally defines the I_STDARG symbol, which
3148 indicates to the C program that <stdarg.h> exists and should
3151 i_stddef (i_stddef.U):
3152 This variable conditionally defines the I_STDDEF symbol, which
3153 indicates to the C program that <stddef.h> exists and should
3156 i_stdlib (i_stdlib.U):
3157 This variable conditionally defines the I_STDLIB symbol, which
3158 indicates to the C program that <stdlib.h> exists and should
3161 i_string (i_string.U):
3162 This variable conditionally defines the I_STRING symbol, which
3163 indicates that <string.h> should be included rather than <strings.h>.
3165 i_sunmath (i_sunmath.U):
3166 This variable conditionally defines the I_SUNMATH symbol, and indicates
3167 whether a C program should include <sunmath.h>.
3169 i_sysaccess (i_sysaccess.U):
3170 This variable conditionally defines the I_SYS_ACCESS symbol,
3171 and indicates whether a C program should include <sys/access.h>.
3173 i_sysdir (i_sysdir.U):
3174 This variable conditionally defines the I_SYS_DIR symbol, and indicates
3175 whether a C program should include <sys/dir.h>.
3177 i_sysfile (i_sysfile.U):
3178 This variable conditionally defines the I_SYS_FILE symbol, and indicates
3179 whether a C program should include <sys/file.h> to get R_OK and friends.
3181 i_sysfilio (i_sysioctl.U):
3182 This variable conditionally defines the I_SYS_FILIO symbol, which
3183 indicates to the C program that <sys/filio.h> exists and should
3184 be included in preference to <sys/ioctl.h>.
3187 This variable conditionally defines I_SYS_IN, which indicates
3188 to the C program that it should include <sys/in.h> instead of
3191 i_sysioctl (i_sysioctl.U):
3192 This variable conditionally defines the I_SYS_IOCTL symbol, which
3193 indicates to the C program that <sys/ioctl.h> exists and should
3196 i_syslog (i_syslog.U):
3197 This variable conditionally defines the I_SYSLOG symbol,
3198 and indicates whether a C program should include <syslog.h>.
3200 i_sysmman (i_sysmman.U):
3201 This variable conditionally defines the I_SYS_MMAN symbol, and
3202 indicates whether a C program should include <sys/mman.h>.
3204 i_sysmode (i_sysmode.U):
3205 This variable conditionally defines the I_SYSMODE symbol,
3206 and indicates whether a C program should include <sys/mode.h>.
3208 i_sysmount (i_sysmount.U):
3209 This variable conditionally defines the I_SYSMOUNT symbol,
3210 and indicates whether a C program should include <sys/mount.h>.
3212 i_sysndir (i_sysndir.U):
3213 This variable conditionally defines the I_SYS_NDIR symbol, and indicates
3214 whether a C program should include <sys/ndir.h>.
3216 i_sysparam (i_sysparam.U):
3217 This variable conditionally defines the I_SYS_PARAM symbol, and indicates
3218 whether a C program should include <sys/param.h>.
3220 i_syspoll (i_syspoll.U):
3221 This variable conditionally defines the I_SYS_POLL symbol, which
3222 indicates to the C program that it should include <sys/poll.h>.
3224 i_sysresrc (i_sysresrc.U):
3225 This variable conditionally defines the I_SYS_RESOURCE symbol,
3226 and indicates whether a C program should include <sys/resource.h>.
3228 i_syssecrt (i_syssecrt.U):
3229 This variable conditionally defines the I_SYS_SECURITY symbol,
3230 and indicates whether a C program should include <sys/security.h>.
3232 i_sysselct (i_sysselct.U):
3233 This variable conditionally defines I_SYS_SELECT, which indicates
3234 to the C program that it should include <sys/select.h> in order to
3235 get the definition of struct timeval.
3237 i_syssockio (i_sysioctl.U):
3238 This variable conditionally defines I_SYS_SOCKIO to indicate to the
3239 C program that socket ioctl codes may be found in <sys/sockio.h>
3240 instead of <sys/ioctl.h>.
3242 i_sysstat (i_sysstat.U):
3243 This variable conditionally defines the I_SYS_STAT symbol,
3244 and indicates whether a C program should include <sys/stat.h>.
3246 i_sysstatfs (i_sysstatfs.U):
3247 This variable conditionally defines the I_SYSSTATFS symbol,
3248 and indicates whether a C program should include <sys/statfs.h>.
3250 i_sysstatvfs (i_sysstatvfs.U):
3251 This variable conditionally defines the I_SYSSTATVFS symbol,
3252 and indicates whether a C program should include <sys/statvfs.h>.
3254 i_systime (i_time.U):
3255 This variable conditionally defines I_SYS_TIME, which indicates
3256 to the C program that it should include <sys/time.h>.
3258 i_systimek (i_time.U):
3259 This variable conditionally defines I_SYS_TIME_KERNEL, which
3260 indicates to the C program that it should include <sys/time.h>
3261 with KERNEL defined.
3263 i_systimes (i_systimes.U):
3264 This variable conditionally defines the I_SYS_TIMES symbol, and indicates
3265 whether a C program should include <sys/times.h>.
3267 i_systypes (i_systypes.U):
3268 This variable conditionally defines the I_SYS_TYPES symbol,
3269 and indicates whether a C program should include <sys/types.h>.
3271 i_sysuio (i_sysuio.U):
3272 This variable conditionally defines the I_SYSUIO symbol, and indicates
3273 whether a C program should include <sys/uio.h>.
3275 i_sysun (i_sysun.U):
3276 This variable conditionally defines I_SYS_UN, which indicates
3277 to the C program that it should include <sys/un.h> to get UNIX
3278 domain socket definitions.
3280 i_sysutsname (i_sysutsname.U):
3281 This variable conditionally defines the I_SYSUTSNAME symbol,
3282 and indicates whether a C program should include <sys/utsname.h>.
3284 i_sysvfs (i_sysvfs.U):
3285 This variable conditionally defines the I_SYSVFS symbol,
3286 and indicates whether a C program should include <sys/vfs.h>.
3288 i_syswait (i_syswait.U):
3289 This variable conditionally defines I_SYS_WAIT, which indicates
3290 to the C program that it should include <sys/wait.h>.
3292 i_termio (i_termio.U):
3293 This variable conditionally defines the I_TERMIO symbol, which
3294 indicates to the C program that it should include <termio.h> rather
3297 i_termios (i_termio.U):
3298 This variable conditionally defines the I_TERMIOS symbol, which
3299 indicates to the C program that the POSIX <termios.h> file is
3303 This variable conditionally defines I_TIME, which indicates
3304 to the C program that it should include <time.h>.
3306 i_unistd (i_unistd.U):
3307 This variable conditionally defines the I_UNISTD symbol, and indicates
3308 whether a C program should include <unistd.h>.
3310 i_ustat (i_ustat.U):
3311 This variable conditionally defines the I_USTAT symbol, and indicates
3312 whether a C program should include <ustat.h>.
3314 i_utime (i_utime.U):
3315 This variable conditionally defines the I_UTIME symbol, and indicates
3316 whether a C program should include <utime.h>.
3318 i_values (i_values.U):
3319 This variable conditionally defines the I_VALUES symbol, and indicates
3320 whether a C program may include <values.h> to get symbols like MAXLONG
3323 i_varargs (i_varhdr.U):
3324 This variable conditionally defines I_VARARGS, which indicates
3325 to the C program that it should include <varargs.h>.
3327 i_varhdr (i_varhdr.U):
3328 Contains the name of the header to be included to get va_dcl definition.
3329 Typically one of varargs.h or stdarg.h.
3331 i_vfork (i_vfork.U):
3332 This variable conditionally defines the I_VFORK symbol, and indicates
3333 whether a C program should include vfork.h.
3335 ignore_versioned_solibs (libs.U):
3336 This variable should be non-empty if non-versioned shared
3337 libraries (libfoo.so.x.y) are to be ignored (because they
3338 cannot be linked against).
3340 inc_version_list (inc_version_list.U):
3341 This variable specifies the list of subdirectories in over
3342 which perl.c:incpush() and lib/lib.pm will automatically
3343 search when adding directories to @INC. The elements in
3344 the list are separated by spaces. This is only useful
3345 if you have a perl library directory tree structured like the
3346 default one. See INSTALL for how this works. The versioned
3347 site_perl directory was introduced in 5.005, so that is the
3348 lowest possible value.
3350 This list includes architecture-dependent directories back to
3351 version $api_versionstring (e.g. 5.5.640) and
3352 architecture-independent directories all the way back to
3355 inc_version_list_init (inc_version_list.U):
3356 This variable holds the same list as inc_version_list, but
3357 each item is enclosed in double quotes and separated by commas,
3358 suitable for use in the PERL_INC_VERSION_LIST initialization.
3361 This variable must preceed the normal include path to get hte
3362 right one, as in "$incpath/usr/include" or "$incpath/usr/lib".
3363 Value can be "" or "/bsd43" on mips.
3366 This variable is defined but not used by Configure.
3367 The value is the empty string and is not useful.
3369 initialinstalllocation (bin.U):
3370 When userelocatableinc is true, this variable holds the location
3371 that make install should copy the perl binary to, with all the
3372 run-time relocatable paths calculated from this at install time.
3373 When used, it is initialised to the original value of binexp, and
3374 then binexp is set to '.../', as the other binaries are found
3375 relative to the perl binary.
3377 installarchlib (archlib.U):
3378 This variable is really the same as archlibexp but may differ on
3379 those systems using AFS. For extra portability, only this variable
3380 should be used in makefiles.
3383 This variable is the same as binexp unless AFS is running in which case
3384 the user is explicitely prompted for it. This variable should always
3385 be used in your makefiles for maximum portability.
3387 installhtml1dir (html1dir.U):
3388 This variable is really the same as html1direxp, unless you are
3389 using a different installprefix. For extra portability, you
3390 should only use this variable within your makefiles.
3392 installhtml3dir (html3dir.U):
3393 This variable is really the same as html3direxp, unless you are
3394 using a different installprefix. For extra portability, you
3395 should only use this variable within your makefiles.
3397 installman1dir (man1dir.U):
3398 This variable is really the same as man1direxp, unless you are using
3399 AFS in which case it points to the read/write location whereas
3400 man1direxp only points to the read-only access location. For extra
3401 portability, you should only use this variable within your makefiles.
3403 installman3dir (man3dir.U):
3404 This variable is really the same as man3direxp, unless you are using
3405 AFS in which case it points to the read/write location whereas
3406 man3direxp only points to the read-only access location. For extra
3407 portability, you should only use this variable within your makefiles.
3409 installprefix (installprefix.U):
3410 This variable holds the name of the directory below which
3411 "make install" will install the package. For most users, this
3412 is the same as prefix. However, it is useful for
3413 installing the software into a different (usually temporary)
3414 location after which it can be bundled up and moved somehow
3415 to the final location specified by prefix.
3417 installprefixexp (installprefix.U):
3418 This variable holds the full absolute path of installprefix
3419 with all ~-expansion done.
3421 installprivlib (privlib.U):
3422 This variable is really the same as privlibexp but may differ on
3423 those systems using AFS. For extra portability, only this variable
3424 should be used in makefiles.
3426 installscript (scriptdir.U):
3427 This variable is usually the same as scriptdirexp, unless you are on
3428 a system running AFS, in which case they may differ slightly. You
3429 should always use this variable within your makefiles for portability.
3431 installsitearch (sitearch.U):
3432 This variable is really the same as sitearchexp but may differ on
3433 those systems using AFS. For extra portability, only this variable
3434 should be used in makefiles.
3436 installsitebin (sitebin.U):
3437 This variable is usually the same as sitebinexp, unless you are on
3438 a system running AFS, in which case they may differ slightly. You
3439 should always use this variable within your makefiles for portability.
3441 installsitehtml1dir (sitehtml1dir.U):
3442 This variable is really the same as sitehtml1direxp, unless you are using
3443 AFS in which case it points to the read/write location whereas
3444 html1direxp only points to the read-only access location. For extra
3445 portability, you should only use this variable within your makefiles.
3447 installsitehtml3dir (sitehtml3dir.U):
3448 This variable is really the same as sitehtml3direxp, unless you are using
3449 AFS in which case it points to the read/write location whereas
3450 html3direxp only points to the read-only access location. For extra
3451 portability, you should only use this variable within your makefiles.
3453 installsitelib (sitelib.U):
3454 This variable is really the same as sitelibexp but may differ on
3455 those systems using AFS. For extra portability, only this variable
3456 should be used in makefiles.
3458 installsiteman1dir (siteman1dir.U):
3459 This variable is really the same as siteman1direxp, unless you are using
3460 AFS in which case it points to the read/write location whereas
3461 man1direxp only points to the read-only access location. For extra
3462 portability, you should only use this variable within your makefiles.
3464 installsiteman3dir (siteman3dir.U):
3465 This variable is really the same as siteman3direxp, unless you are using
3466 AFS in which case it points to the read/write location whereas
3467 man3direxp only points to the read-only access location. For extra
3468 portability, you should only use this variable within your makefiles.
3470 installsitescript (sitescript.U):
3471 This variable is usually the same as sitescriptexp, unless you are on
3472 a system running AFS, in which case they may differ slightly. You
3473 should always use this variable within your makefiles for portability.
3475 installstyle (installstyle.U):
3476 This variable describes the "style" of the perl installation.
3477 This is intended to be useful for tools that need to
3478 manipulate entire perl distributions. Perl itself doesn't use
3479 this to find its libraries -- the library directories are
3480 stored directly in Config.pm. Currently, there are only two
3481 styles: "lib" and "lib/perl5". The default library locations
3482 (e.g. privlib, sitelib) are either $prefix/lib or
3483 $prefix/lib/perl5. The former is useful if $prefix is a
3484 directory dedicated to perl (e.g. /opt/perl), while the latter
3485 is useful if $prefix is shared by many packages, e.g. if
3488 Unfortunately, while this "style" variable is used to set
3489 defaults for all three directory hierarchies (core, vendor, and
3490 site), there is no guarantee that the same style is actually
3491 appropriate for all those directories. For example, $prefix
3492 might be /opt/perl, but $siteprefix might be /usr/local.
3493 (Perhaps, in retrospect, the "lib" style should never have been
3494 supported, but it did seem like a nice idea at the time.)
3496 The situation is even less clear for tools such as MakeMaker
3497 that can be used to install additional modules into
3498 non-standard places. For example, if a user intends to install
3499 a module into a private directory (perhaps by setting PREFIX on
3500 the Makefile.PL command line), then there is no reason to
3501 assume that the Configure-time $installstyle setting will be
3502 relevant for that PREFIX.
3504 This may later be extended to include other information, so
3505 be careful with pattern-matching on the results.
3507 For compatibility with perl5.005 and earlier, the default
3508 setting is based on whether or not $prefix contains the string
3511 installusrbinperl (instubperl.U):
3512 This variable tells whether Perl should be installed also as
3513 /usr/bin/perl in addition to
3516 installvendorarch (vendorarch.U):
3517 This variable is really the same as vendorarchexp but may differ on
3518 those systems using AFS. For extra portability, only this variable
3519 should be used in makefiles.
3521 installvendorbin (vendorbin.U):
3522 This variable is really the same as vendorbinexp but may differ on
3523 those systems using AFS. For extra portability, only this variable
3524 should be used in makefiles.
3526 installvendorhtml1dir (vendorhtml1dir.U):
3527 This variable is really the same as vendorhtml1direxp but may differ on
3528 those systems using AFS. For extra portability, only this variable
3529 should be used in makefiles.
3531 installvendorhtml3dir (vendorhtml3dir.U):
3532 This variable is really the same as vendorhtml3direxp but may differ on
3533 those systems using AFS. For extra portability, only this variable
3534 should be used in makefiles.
3536 installvendorlib (vendorlib.U):
3537 This variable is really the same as vendorlibexp but may differ on
3538 those systems using AFS. For extra portability, only this variable
3539 should be used in makefiles.
3541 installvendorman1dir (vendorman1dir.U):
3542 This variable is really the same as vendorman1direxp but may differ on
3543 those systems using AFS. For extra portability, only this variable
3544 should be used in makefiles.
3546 installvendorman3dir (vendorman3dir.U):
3547 This variable is really the same as vendorman3direxp but may differ on
3548 those systems using AFS. For extra portability, only this variable
3549 should be used in makefiles.
3551 installvendorscript (vendorscript.U):
3552 This variable is really the same as vendorscriptexp but may differ on
3553 those systems using AFS. For extra portability, only this variable
3554 should be used in makefiles.
3556 intsize (intsize.U):
3557 This variable contains the value of the INTSIZE symbol, which
3558 indicates to the C program how many bytes there are in an int.
3560 issymlink (issymlink.U):
3561 This variable holds the test command to test for a symbolic link
3562 (if they are supported). Typical values include 'test -h' and
3565 ivdformat (perlxvf.U):
3566 This variable contains the format string used for printing
3567 a Perl IV as a signed decimal integer.
3570 This variable is the size of an IV in bytes.
3573 This variable contains the C type used for Perl's IV.
3575 known_extensions (Extensions.U):
3576 This variable holds a list of all XS extensions included in
3580 This variable is defined but not used by Configure.
3581 The value is the empty string and is not useful.
3584 This variable indicates the program to be used to link
3585 libraries for dynamic loading. On some systems, it is 'ld'.
3586 On ELF systems, it should be $cc. Mostly, we'll try to respect
3587 the hint file setting.
3589 lddlflags (dlsrc.U):
3590 This variable contains any special flags that might need to be
3591 passed to $ld to create a shared library suitable for dynamic
3592 loading. It is up to the makefile to use it. For hpux, it
3593 should be '-b'. For sunos 4.1, it is empty.
3595 ldflags (ccflags.U):
3596 This variable contains any additional C loader flags desired by
3597 the user. It is up to the Makefile to use this.
3599 ldflags_uselargefiles (uselfs.U):
3600 This variable contains the loader flags needed by large file builds
3601 and added to ldflags by hints files.
3603 ldlibpthname (libperl.U):
3604 This variable holds the name of the shared library
3605 search path, often LD_LIBRARY_PATH. To get an empty
3606 string, the hints file must set this to 'none'.
3609 This variable is used internally by Configure to determine the
3610 full pathname (if any) of the less program. After Configure runs,
3611 the value is reset to a plain "less" and is not useful.
3614 This is an old synonym for _a.
3617 This variable contains the location of the C library.
3619 libperl (libperl.U):
3620 The perl executable is obtained by linking perlmain.c with
3621 libperl, any static extensions (usually just DynaLoader),
3622 and any other libraries needed on this system. libperl
3623 is usually libperl.a, but can also be libperl.so.xxx if
3624 the user wishes to build a perl executable with a shared
3628 This variable holds the general path (space-separated) used to find
3629 libraries. It is intended to be used by other units.
3632 This variable holds the additional libraries we want to use.
3633 It is up to the Makefile to deal with it. The list can be empty.
3636 This variable holds the directory names aka dirnames of the libraries
3637 we found and accepted, duplicates are removed.
3640 This variable holds the filenames aka basenames of the libraries
3641 we found and accepted.
3644 This variable holds the full pathnames of the libraries
3645 we found and accepted.
3648 This variable holds the directory names probed for libraries.
3650 libswanted (Myinit.U):
3651 This variable holds a list of all the libraries we want to
3652 search. The order is chosen to pick up the c library
3653 ahead of ucb or bsd libraries for SVR4.
3655 libswanted_uselargefiles (uselfs.U):
3656 This variable contains the libraries needed by large file builds
3657 and added to ldflags by hints files. It is a space separated list
3658 of the library names without the "lib" prefix or any suffix, just
3662 This variable is defined but not used by Configure.
3663 The value is the empty string and is not useful.
3666 This variable is defined but not used by Configure.
3667 The value is the empty string and is not useful.
3669 lkflags (ccflags.U):
3670 This variable contains any additional C partial linker flags desired by
3671 the user. It is up to the Makefile to use this.
3674 This variable is used internally by Configure to determine the
3675 full pathname (if any) of the ln program. After Configure runs,
3676 the value is reset to a plain "ln" and is not useful.
3679 This variable holds the name of the command to make
3680 symbolic links (if they are supported). It can be used
3681 in the Makefile. It is either 'ln -s' or 'ln'
3683 localtime_r_proto (d_localtime_r.U):
3684 This variable encodes the prototype of localtime_r.
3685 It is zero if d_localtime_r is undef, and one of the
3686 REENTRANT_PROTO_T_ABC macros of reentr.h if d_localtime_r
3689 locincpth (ccflags.U):
3690 This variable contains a list of additional directories to be
3691 searched by the compiler. The appropriate '-I' directives will
3692 be added to ccflags. This is intended to simplify setting
3693 local directories from the Configure command line.
3694 It's not much, but it parallels the loclibpth stuff in libpth.U.
3696 loclibpth (libpth.U):
3697 This variable holds the paths (space-separated) used to find local
3698 libraries. It is prepended to libpth, and is intended to be easily
3699 set from the command line.
3701 longdblsize (d_longdbl.U):
3702 This variable contains the value of the LONG_DOUBLESIZE symbol, which
3703 indicates to the C program how many bytes there are in a long double,
3704 if this system supports long doubles.
3706 longlongsize (d_longlong.U):
3707 This variable contains the value of the LONGLONGSIZE symbol, which
3708 indicates to the C program how many bytes there are in a long long,
3709 if this system supports long long.
3711 longsize (intsize.U):
3712 This variable contains the value of the LONGSIZE symbol, which
3713 indicates to the C program how many bytes there are in a long.
3716 This variable is defined but not used by Configure.
3717 The value is the empty string and is not useful.
3720 This variable is defined but not used by Configure.
3721 The value is the empty string and is not useful.
3724 This variable is used internally by Configure to determine the
3725 full pathname (if any) of the ls program. After Configure runs,
3726 the value is reset to a plain "ls" and is not useful.
3728 lseeksize (lseektype.U):
3729 This variable defines lseektype to be something like off_t, long,
3730 or whatever type is used to declare lseek offset's type in the
3731 kernel (which also appears to be lseek's return type).
3733 lseektype (lseektype.U):
3734 This variable defines lseektype to be something like off_t, long,
3735 or whatever type is used to declare lseek offset's type in the
3736 kernel (which also appears to be lseek's return type).
3739 This variable indicates that the Misc Attribute Definition code is to
3743 If the Misc Attribute Decoration is to be compiled, this variable is
3744 set to the name of the extra header files to be used, else it is ''
3747 If the Misc Attribute Decoration is to be compiled, this variable is
3748 set to the name of the extra object files to be used, else it is ''
3751 If the Misc Attribute Decoration is to be compiled, this variable is
3752 set to the name of the extra C source files to be used, else it is ''
3755 This variable is defined but not used by Configure.
3756 The value is the empty string and is not useful.
3759 This variable is defined but not used by Configure.
3760 The value is the empty string and is not useful.
3763 This variable is used internally by Configure to determine the
3764 full pathname (if any) of the make program. After Configure runs,
3765 the value is reset to a plain "make" and is not useful.
3767 make_set_make (make.U):
3768 Some versions of 'make' set the variable MAKE. Others do not.
3769 This variable contains the string to be included in Makefile.SH
3770 so that MAKE is set if needed, and not if not needed.
3771 Possible values are:
3773 make_set_make='#' # If your make program handles this for you,
3775 make_set_make="MAKE=$make" # if it doesn't.
3777 This uses a comment character so that we can distinguish a
3778 'set' value (from a previous config.sh or Configure '-D' option)
3779 from an uncomputed value.
3781 mallocobj (mallocsrc.U):
3782 This variable contains the name of the malloc.o that this package
3783 generates, if that malloc.o is preferred over the system malloc.
3784 Otherwise the value is null. This variable is intended for generating
3785 Makefiles. See mallocsrc.
3787 mallocsrc (mallocsrc.U):
3788 This variable contains the name of the malloc.c that comes with
3789 the package, if that malloc.c is preferred over the system malloc.
3790 Otherwise the value is null. This variable is intended for generating
3793 malloctype (mallocsrc.U):
3794 This variable contains the kind of ptr returned by malloc and realloc.
3796 man1dir (man1dir.U):
3797 This variable contains the name of the directory in which manual
3798 source pages are to be put. It is the responsibility of the
3799 Makefile.SH to get the value of this into the proper command.
3800 You must be prepared to do the ~name expansion yourself.
3802 man1direxp (man1dir.U):
3803 This variable is the same as the man1dir variable, but is filename
3804 expanded at configuration time, for convenient use in makefiles.
3806 man1ext (man1dir.U):
3807 This variable contains the extension that the manual page should
3808 have: one of 'n', 'l', or '1'. The Makefile must supply the '.'.
3811 man3dir (man3dir.U):
3812 This variable contains the name of the directory in which manual
3813 source pages are to be put. It is the responsibility of the
3814 Makefile.SH to get the value of this into the proper command.
3815 You must be prepared to do the ~name expansion yourself.
3817 man3direxp (man3dir.U):
3818 This variable is the same as the man3dir variable, but is filename
3819 expanded at configuration time, for convenient use in makefiles.
3821 man3ext (man3dir.U):
3822 This variable contains the extension that the manual page should
3823 have: one of 'n', 'l', or '3'. The Makefile must supply the '.'.
3826 mips_type (usrinc.U):
3827 This variable holds the environment type for the mips system.
3828 Possible values are "BSD 4.3" and "System V".
3830 mistrustnm (Csym.U):
3831 This variable can be used to establish a fallthrough for the cases
3832 where nm fails to find a symbol. If usenm is false or usenm is true
3833 and mistrustnm is false, this variable has no effect. If usenm is true
3834 and mistrustnm is "compile", a test program will be compiled to try to
3835 find any symbol that can't be located via nm lookup. If mistrustnm is
3836 "run", the test program will be run as well as being compiled.
3839 This variable is used internally by Configure to determine the
3840 full pathname (if any) of the mkdir program. After Configure runs,
3841 the value is reset to a plain "mkdir" and is not useful.
3843 mmaptype (d_mmap.U):
3844 This symbol contains the type of pointer returned by mmap()
3845 (and simultaneously the type of the first argument).
3846 It can be 'void *' or 'caddr_t'.
3848 modetype (modetype.U):
3849 This variable defines modetype to be something like mode_t,
3850 int, unsigned short, or whatever type is used to declare file
3851 modes for system calls.
3854 This variable is used internally by Configure to determine the
3855 full pathname (if any) of the more program. After Configure runs,
3856 the value is reset to a plain "more" and is not useful.
3858 multiarch (multiarch.U):
3859 This variable conditionally defines the MULTIARCH symbol
3860 which signifies the presence of multiplatform files.
3861 This is normally set by hints files.
3864 This variable is defined but not used by Configure.
3865 The value is the empty string and is not useful.
3867 myarchname (archname.U):
3868 This variable holds the architecture name computed by Configure in
3869 a previous run. It is not intended to be perused by any user and
3870 should never be set in a hint file.
3872 mydomain (myhostname.U):
3873 This variable contains the eventual value of the MYDOMAIN symbol,
3874 which is the domain of the host the program is going to run on.
3875 The domain must be appended to myhostname to form a complete host name.
3876 The dot comes with mydomain, and need not be supplied by the program.
3878 myhostname (myhostname.U):
3879 This variable contains the eventual value of the MYHOSTNAME symbol,
3880 which is the name of the host the program is going to run on.
3881 The domain is not kept with hostname, but must be gotten from mydomain.
3882 The dot comes with mydomain, and need not be supplied by the program.
3884 myuname (Oldconfig.U):
3885 The output of 'uname -a' if available, otherwise the hostname. On Xenix,
3886 pseudo variables assignments in the output are stripped, thank you. The
3887 whole thing is then lower-cased.
3890 This variable contains the '-n' flag if that is what causes the echo
3891 command to suppress newline. Otherwise it is null. Correct usage is
3892 $echo $n "prompt for a question: $c".
3894 need_va_copy (need_va_copy.U):
3895 This symbol, if defined, indicates that the system stores
3896 the variable argument list datatype, va_list, in a format
3897 that cannot be copied by simple assignment, so that some
3898 other means must be used when copying is required.
3899 As such systems vary in their provision (or non-provision)
3900 of copying mechanisms, handy.h defines a platform-
3901 independent macro, Perl_va_copy(src, dst), to do the job.
3903 netdb_hlen_type (netdbtype.U):
3904 This variable holds the type used for the 2nd argument to
3905 gethostbyaddr(). Usually, this is int or size_t or unsigned.
3906 This is only useful if you have gethostbyaddr(), naturally.
3908 netdb_host_type (netdbtype.U):
3909 This variable holds the type used for the 1st argument to
3910 gethostbyaddr(). Usually, this is char * or void *, possibly
3911 with or without a const prefix.
3912 This is only useful if you have gethostbyaddr(), naturally.
3914 netdb_name_type (netdbtype.U):
3915 This variable holds the type used for the argument to
3916 gethostbyname(). Usually, this is char * or const char *.
3917 This is only useful if you have gethostbyname(), naturally.
3919 netdb_net_type (netdbtype.U):
3920 This variable holds the type used for the 1st argument to
3921 getnetbyaddr(). Usually, this is int or long.
3922 This is only useful if you have getnetbyaddr(), naturally.
3925 This variable is used internally by Configure to determine the
3926 full pathname (if any) of the nm program. After Configure runs,
3927 the value is reset to a plain "nm" and is not useful.
3930 This variable holds the options that may be necessary for nm.
3932 nm_so_opt (usenm.U):
3933 This variable holds the options that may be necessary for nm
3934 to work on a shared library but that can not be used on an
3935 archive library. Currently, this is only used by Linux, where
3936 nm --dynamic is *required* to get symbols from an ELF library which
3937 has been stripped, but nm --dynamic is *fatal* on an archive library.
3938 Maybe Linux should just always set usenm=false.
3940 nonxs_ext (Extensions.U):
3941 This variable holds a list of all non-xs extensions included
3942 in the package. All of them will be built.
3945 This variable is used internally by Configure to determine the
3946 full pathname (if any) of the nroff program. After Configure runs,
3947 the value is reset to a plain "nroff" and is not useful.
3949 nv_overflows_integers_at (perlxv.U):
3950 This variable gives the largest integer value that NVs can hold
3951 as a constant floating point expression.
3952 If it could not be determined, it holds the value 0.
3954 nv_preserves_uv_bits (perlxv.U):
3955 This variable indicates how many of bits type uvtype
3956 a variable nvtype can preserve.
3958 nveformat (perlxvf.U):
3959 This variable contains the format string used for printing
3960 a Perl NV using %e-ish floating point format.
3962 nvEUformat (perlxvf.U):
3963 This variable contains the format string used for printing
3964 a Perl NV using %E-ish floating point format.
3966 nvfformat (perlxvf.U):
3967 This variable confains the format string used for printing
3968 a Perl NV using %f-ish floating point format.
3970 nvFUformat (perlxvf.U):
3971 This variable confains the format string used for printing
3972 a Perl NV using %F-ish floating point format.
3974 nvgformat (perlxvf.U):
3975 This variable contains the format string used for printing
3976 a Perl NV using %g-ish floating point format.
3978 nvGUformat (perlxvf.U):
3979 This variable contains the format string used for printing
3980 a Perl NV using %G-ish floating point format.
3983 This variable is the size of an NV in bytes.
3986 This variable contains the C type used for Perl's NV.
3988 o_nonblock (nblock_io.U):
3989 This variable bears the symbol value to be used during open() or fcntl()
3990 to turn on non-blocking I/O for a file descriptor. If you wish to switch
3991 between blocking and non-blocking, you may try ioctl(FIOSNBIO) instead,
3992 but that is only supported by some devices.
3995 This is an old synonym for _o.
3997 old_pthread_create_joinable (d_pthrattrj.U):
3998 This variable defines the constant to use for creating joinable
3999 (aka undetached) pthreads. Unused if pthread.h defines
4000 PTHREAD_CREATE_JOINABLE. If used, possible values are
4001 PTHREAD_CREATE_UNDETACHED and __UNDETACHED.
4003 optimize (ccflags.U):
4004 This variable contains any optimizer/debugger flag that should be used.
4005 It is up to the Makefile to use it.
4007 orderlib (orderlib.U):
4008 This variable is "true" if the components of libraries must be ordered
4009 (with `lorder $* | tsort`) before placing them in an archive. Set to
4010 "false" if ranlib or ar can generate random libraries.
4012 osname (Oldconfig.U):
4013 This variable contains the operating system name (e.g. sunos,
4014 solaris, hpux, etc.). It can be useful later on for setting
4015 defaults. Any spaces are replaced with underscores. It is set
4016 to a null string if we can't figure it out.
4018 osvers (Oldconfig.U):
4019 This variable contains the operating system version (e.g.
4020 4.1.3, 5.2, etc.). It is primarily used for helping select
4021 an appropriate hints file, but might be useful elsewhere for
4022 setting defaults. It is set to '' if we can't figure it out.
4023 We try to be flexible about how much of the version number
4024 to keep, e.g. if 4.1.1, 4.1.2, and 4.1.3 are essentially the
4025 same for this package, hints files might just be os_4.0 or
4026 os_4.1, etc., not keeping separate files for each little release.
4028 otherlibdirs (otherlibdirs.U):
4029 This variable contains a colon-separated set of paths for the perl
4030 binary to search for additional library files or modules.
4031 These directories will be tacked to the end of @INC.
4032 Perl will automatically search below each path for version-
4033 and architecture-specific directories. See inc_version_list
4035 A value of ' ' means 'none' and is used to preserve this value
4036 for the next run through Configure.
4038 package (package.U):
4039 This variable contains the name of the package being constructed.
4040 It is primarily intended for the use of later Configure units.
4043 This variable contains the name of the preferred pager on the system.
4044 Usual values are (the full pathnames of) more, less, pg, or cat.
4047 This variable contains a command that produces the text of the
4048 /etc/passwd file. This is normally "cat /etc/passwd", but can be
4049 "ypcat passwd" when NIS is used.
4050 On some systems, such as os390, there may be no equivalent
4051 command, in which case this variable is unset.
4053 patchlevel (patchlevel.U):
4054 The patchlevel level of this package.
4055 The value of patchlevel comes from the patchlevel.h file.
4056 In a version number such as 5.6.1, this is the "6".
4057 In patchlevel.h, this is referred to as "PERL_VERSION".
4060 This is an old synonym for p_ in Head.U, the character
4061 used to separate elements in the command shell search PATH.
4064 This variable is defined but not used by Configure.
4065 The value is the empty string and is not useful.
4068 This variable contains the full path (if any) to a previously
4069 installed perl5.005 or later suitable for running the script
4070 to determine inc_version_list.
4072 PERL_API_REVISION (patchlevel.h):
4073 This number describes the earliest compatible PERL_REVISION of
4074 Perl ("compatibility" here being defined as sufficient binary/API
4075 compatibility to run XS code built with the older version).
4076 Normally this does not change across maintenance releases.
4077 Please read the comment in patchlevel.h.
4079 PERL_API_SUBVERSION (patchlevel.h):
4080 This number describes the earliest compatible PERL_SUBVERSION of
4081 Perl ("compatibility" here being defined as sufficient binary/API
4082 compatibility to run XS code built with the older version).
4083 Normally this does not change across maintenance releases.
4084 Please read the comment in patchlevel.h.
4086 PERL_API_VERSION (patchlevel.h):
4087 This number describes the earliest compatible PERL_VERSION of
4088 Perl ("compatibility" here being defined as sufficient binary/API
4089 compatibility to run XS code built with the older version).
4090 Normally this does not change across maintenance releases.
4091 Please read the comment in patchlevel.h.
4093 PERL_CONFIG_SH (Oldsyms.U):
4094 This is set to 'true' in config.sh so that a shell script
4095 sourcing config.sh can tell if it has been sourced already.
4097 PERL_PATCHLEVEL (Oldsyms.U):
4098 This symbol reflects the patchlevel, if available. Will usually
4099 come from the .patch file, which is available when the perl
4100 source tree was fetched with rsync.
4102 perl_patchlevel (patchlevel.U):
4103 This is the Perl patch level, a numeric change identifier,
4104 as defined by whichever source code maintenance system
4105 is used to maintain the patches; currently Perforce.
4106 It does not correlate with the Perl version numbers or
4107 the maintenance versus development dichotomy except
4108 by also being increasing.
4110 PERL_REVISION (Oldsyms.U):
4111 In a Perl version number such as 5.6.2, this is the 5.
4112 This value is manually set in patchlevel.h
4114 PERL_SUBVERSION (Oldsyms.U):
4115 In a Perl version number such as 5.6.2, this is the 2.
4116 Values greater than 50 represent potentially unstable
4117 development subversions.
4118 This value is manually set in patchlevel.h
4120 PERL_VERSION (Oldsyms.U):
4121 In a Perl version number such as 5.6.2, this is the 6.
4122 This value is manually set in patchlevel.h
4124 perladmin (perladmin.U):
4125 Electronic mail address of the perl5 administrator.
4128 The list of libraries needed by Perl only (any libraries needed
4129 by extensions only will by dropped, if using dynamic loading).
4131 perlpath (perlpath.U):
4132 This variable contains the eventual value of the PERLPATH symbol,
4133 which contains the name of the perl interpreter to be used in
4134 shell scripts and in the "eval 'exec'" idiom. This variable is
4135 not necessarily the pathname of the file containing the perl
4136 interpreter; you must append the executable extension (_exe) if
4137 it is not already present. Note that Perl code that runs during
4138 the Perl build process cannot reference this variable, as Perl
4139 may not have been installed, or even if installed, may be a
4140 different version of Perl.
4143 This variable is used internally by Configure to determine the
4144 full pathname (if any) of the pg program. After Configure runs,
4145 the value is reset to a plain "pg" and is not useful.
4147 phostname (myhostname.U):
4148 This variable contains the eventual value of the PHOSTNAME symbol,
4149 which is a command that can be fed to popen() to get the host name.
4150 The program should probably not presume that the domain is or isn't
4153 pidtype (pidtype.U):
4154 This variable defines PIDTYPE to be something like pid_t, int,
4155 ushort, or whatever type is used to declare process ids in the kernel.
4158 Holds the private path used by Configure to find out the libraries.
4159 Its value is prepend to libpth. This variable takes care of special
4160 machines, like the mips. Usually, it should be empty.
4163 This variable is defined but not used by Configure.
4164 The value is the empty string and is not useful.
4167 This variable is defined but not used by Configure.
4168 The value is the empty string and is not useful.
4171 This variable holds the name of the directory below which the
4172 user will install the package. Usually, this is /usr/local, and
4173 executables go in /usr/local/bin, library stuff in /usr/local/lib,
4174 man pages in /usr/local/man, etc. It is only used to set defaults
4175 for things in bin.U, mansrc.U, privlib.U, or scriptdir.U.
4177 prefixexp (prefix.U):
4178 This variable holds the full absolute path of the directory below
4179 which the user will install the package. Derived from prefix.
4181 privlib (privlib.U):
4182 This variable contains the eventual value of the PRIVLIB symbol,
4183 which is the name of the private library for this package. It may
4184 have a ~ on the front. It is up to the makefile to eventually create
4185 this directory while performing installation (with ~ substitution).
4187 privlibexp (privlib.U):
4188 This variable is the ~name expanded version of privlib, so that you
4189 may use it directly in Makefiles or shell scripts.
4191 procselfexe (d_procselfexe.U):
4192 If d_procselfexe is defined, $procselfexe is the filename
4193 of the symbolic link pointing to the absolute pathname of
4194 the executing program.
4196 prototype (prototype.U):
4197 This variable holds the eventual value of CAN_PROTOTYPE, which
4198 indicates the C compiler can handle funciton prototypes.
4200 ptrsize (ptrsize.U):
4201 This variable contains the value of the PTRSIZE symbol, which
4202 indicates to the C program how many bytes there are in a pointer.
4204 quadkind (quadtype.U):
4205 This variable, if defined, encodes the type of a quad:
4206 1 = int, 2 = long, 3 = long long, 4 = int64_t.
4208 quadtype (quadtype.U):
4209 This variable defines Quad_t to be something like long, int,
4210 long long, int64_t, or whatever type is used for 64-bit integers.
4212 randbits (randfunc.U):
4213 Indicates how many bits are produced by the function used to
4214 generate normalized random numbers.
4216 randfunc (randfunc.U):
4217 Indicates the name of the random number function to use.
4218 Values include drand48, random, and rand. In C programs,
4219 the 'Drand01' macro is defined to generate uniformly distributed
4220 random numbers over the range [0., 1.[ (see drand01 and nrand).
4222 random_r_proto (d_random_r.U):
4223 This variable encodes the prototype of random_r.
4224 It is zero if d_random_r is undef, and one of the
4225 REENTRANT_PROTO_T_ABC macros of reentr.h if d_random_r
4228 randseedtype (randfunc.U):
4229 Indicates the type of the argument of the seedfunc.
4231 ranlib (orderlib.U):
4232 This variable is set to the pathname of the ranlib program, if it is
4233 needed to generate random libraries. Set to ":" if ar can generate
4234 random libraries or if random libraries are not supported
4236 rd_nodata (nblock_io.U):
4237 This variable holds the return code from read() when no data is
4238 present. It should be -1, but some systems return 0 when O_NDELAY is
4239 used, which is a shame because you cannot make the difference between
4240 no data and an EOF.. Sigh!
4242 readdir64_r_proto (d_readdir64_r.U):
4243 This variable encodes the prototype of readdir64_r.
4244 It is zero if d_readdir64_r is undef, and one of the
4245 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir64_r
4248 readdir_r_proto (d_readdir_r.U):
4249 This variable encodes the prototype of readdir_r.
4250 It is zero if d_readdir_r is undef, and one of the
4251 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir_r
4254 revision (patchlevel.U):
4255 The value of revision comes from the patchlevel.h file.
4256 In a version number such as 5.6.1, this is the "5".
4257 In patchlevel.h, this is referred to as "PERL_REVISION".
4260 This variable is used internally by Configure to determine the
4261 full pathname (if any) of the rm program. After Configure runs,
4262 the value is reset to a plain "rm" and is not useful.
4265 This is a cleanup variable for try test programs.
4266 Internal Configure use only.
4269 This variable is defined but not used by Configure.
4270 The value is the empty string and is not useful.
4273 This variable contains the command used by Configure
4274 to copy and execute a cross-compiled executable in the
4275 target host. Useful and available only during Perl build.
4276 Empty string '' if not cross-compiling.
4279 This variable contains 'true' or 'false' depending whether the
4280 nm extraction should be performed or not, according to the value
4281 of usenm and the flags on the Configure command line.
4283 sched_yield (d_pthread_y.U):
4284 This variable defines the way to yield the execution
4285 of the current thread.
4287 scriptdir (scriptdir.U):
4288 This variable holds the name of the directory in which the user wants
4289 to put publicly scripts for the package in question. It is either
4290 the same directory as for binaries, or a special one that can be
4291 mounted across different architectures, like /usr/share. Programs
4292 must be prepared to deal with ~name expansion.
4294 scriptdirexp (scriptdir.U):
4295 This variable is the same as scriptdir, but is filename expanded
4296 at configuration time, for programs not wanting to bother with it.
4299 This variable is used internally by Configure to determine the
4300 full pathname (if any) of the sed program. After Configure runs,
4301 the value is reset to a plain "sed" and is not useful.
4303 seedfunc (randfunc.U):
4304 Indicates the random number generating seed function.
4305 Values include srand48, srandom, and srand.
4307 selectminbits (selectminbits.U):
4308 This variable holds the minimum number of bits operated by select.
4309 That is, if you do select(n, ...), how many bits at least will be
4310 cleared in the masks if some activity is detected. Usually this
4311 is either n or 32*ceil(n/32), especially many little-endians do
4312 the latter. This is only useful if you have select(), naturally.
4314 selecttype (selecttype.U):
4315 This variable holds the type used for the 2nd, 3rd, and 4th
4316 arguments to select. Usually, this is 'fd_set *', if HAS_FD_SET
4317 is defined, and 'int *' otherwise. This is only useful if you
4318 have select(), naturally.
4321 This variable is defined but not used by Configure.
4322 The value is the empty string and is not useful.
4324 setgrent_r_proto (d_setgrent_r.U):
4325 This variable encodes the prototype of setgrent_r.
4326 It is zero if d_setgrent_r is undef, and one of the
4327 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setgrent_r
4330 sethostent_r_proto (d_sethostent_r.U):
4331 This variable encodes the prototype of sethostent_r.
4332 It is zero if d_sethostent_r is undef, and one of the
4333 REENTRANT_PROTO_T_ABC macros of reentr.h if d_sethostent_r
4336 setlocale_r_proto (d_setlocale_r.U):
4337 This variable encodes the prototype of setlocale_r.
4338 It is zero if d_setlocale_r is undef, and one of the
4339 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setlocale_r
4342 setnetent_r_proto (d_setnetent_r.U):
4343 This variable encodes the prototype of setnetent_r.
4344 It is zero if d_setnetent_r is undef, and one of the
4345 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setnetent_r
4348 setprotoent_r_proto (d_setprotoent_r.U):
4349 This variable encodes the prototype of setprotoent_r.
4350 It is zero if d_setprotoent_r is undef, and one of the
4351 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setprotoent_r
4354 setpwent_r_proto (d_setpwent_r.U):
4355 This variable encodes the prototype of setpwent_r.
4356 It is zero if d_setpwent_r is undef, and one of the
4357 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setpwent_r
4360 setservent_r_proto (d_setservent_r.U):
4361 This variable encodes the prototype of setservent_r.
4362 It is zero if d_setservent_r is undef, and one of the
4363 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setservent_r
4366 sGMTIME_max (time_size.U):
4367 This variable defines the maximum value of the time_t offset that
4368 the system function gmtime () accepts
4370 sGMTIME_min (time_size.U):
4371 This variable defines the minimum value of the time_t offset that
4372 the system function gmtime () accepts
4375 This variable contains the full pathname of the shell used
4376 on this system to execute Bourne shell scripts. Usually, this will be
4377 /bin/sh, though it's possible that some systems will have /bin/ksh,
4378 /bin/pdksh, /bin/ash, /bin/bash, or even something such as
4380 This unit comes before Options.U, so you can't set sh with a '-D'
4381 option, though you can override this (and startsh)
4382 with '-O -Dsh=/bin/whatever -Dstartsh=whatever'
4385 This variable is defined but not used by Configure.
4386 The value is the empty string and is not useful.
4388 sharpbang (spitshell.U):
4389 This variable contains the string #! if this system supports that
4392 shmattype (d_shmat.U):
4393 This symbol contains the type of pointer returned by shmat().
4394 It can be 'void *' or 'char *'.
4396 shortsize (intsize.U):
4397 This variable contains the value of the SHORTSIZE symbol which
4398 indicates to the C program how many bytes there are in a short.
4400 shrpenv (libperl.U):
4401 If the user builds a shared libperl.so, then we need to tell the
4402 'perl' executable where it will be able to find the installed libperl.so.
4403 One way to do this on some systems is to set the environment variable
4404 LD_RUN_PATH to the directory that will be the final location of the
4405 shared libperl.so. The makefile can use this with something like
4406 $shrpenv $(CC) -o perl perlmain.o $libperl $libs
4408 shrpenv="env LD_RUN_PATH=$archlibexp/CORE"
4411 See the main perl Makefile.SH for actual working usage.
4412 Alternatively, we might be able to use a command line option such
4413 as -R $archlibexp/CORE (Solaris) or -Wl,-rpath
4414 $archlibexp/CORE (Linux).
4416 shsharp (spitshell.U):
4417 This variable tells further Configure units whether your sh can
4420 sig_count (sig_name.U):
4421 This variable holds a number larger than the largest valid
4422 signal number. This is usually the same as the NSIG macro.
4424 sig_name (sig_name.U):
4425 This variable holds the signal names, space separated. The leading
4426 SIG in signal name is removed. A ZERO is prepended to the list.
4427 This is currently not used, sig_name_init is used instead.
4429 sig_name_init (sig_name.U):
4430 This variable holds the signal names, enclosed in double quotes and
4431 separated by commas, suitable for use in the SIG_NAME definition
4432 below. A "ZERO" is prepended to the list, and the list is
4433 terminated with a plain 0. The leading SIG in signal names
4434 is removed. See sig_num.
4436 sig_num (sig_name.U):
4437 This variable holds the signal numbers, space separated. A ZERO is
4438 prepended to the list (corresponding to the fake SIGZERO).
4439 Those numbers correspond to the value of the signal listed
4440 in the same place within the sig_name list.
4441 This is currently not used, sig_num_init is used instead.
4443 sig_num_init (sig_name.U):
4444 This variable holds the signal numbers, enclosed in double quotes and
4445 separated by commas, suitable for use in the SIG_NUM definition
4446 below. A "ZERO" is prepended to the list, and the list is
4447 terminated with a plain 0.
4449 sig_size (sig_name.U):
4450 This variable contains the number of elements of the sig_name
4453 signal_t (d_voidsig.U):
4454 This variable holds the type of the signal handler (void or int).
4456 sitearch (sitearch.U):
4457 This variable contains the eventual value of the SITEARCH symbol,
4458 which is the name of the private library for this package. It may
4459 have a ~ on the front. It is up to the makefile to eventually create
4460 this directory while performing installation (with ~ substitution).
4461 The standard distribution will put nothing in this directory.
4462 After perl has been installed, users may install their own local
4463 architecture-dependent modules in this directory with
4464 MakeMaker Makefile.PL
4465 or equivalent. See INSTALL for details.
4467 sitearchexp (sitearch.U):
4468 This variable is the ~name expanded version of sitearch, so that you
4469 may use it directly in Makefiles or shell scripts.
4471 sitebin (sitebin.U):
4472 This variable holds the name of the directory in which the user wants
4473 to put add-on publicly executable files for the package in question. It
4474 is most often a local directory such as /usr/local/bin. Programs using
4475 this variable must be prepared to deal with ~name substitution.
4476 The standard distribution will put nothing in this directory.
4477 After perl has been installed, users may install their own local
4478 executables in this directory with
4479 MakeMaker Makefile.PL
4480 or equivalent. See INSTALL for details.
4482 sitebinexp (sitebin.U):
4483 This is the same as the sitebin variable, but is filename expanded at
4484 configuration time, for use in your makefiles.
4486 sitehtml1dir (sitehtml1dir.U):
4487 This variable contains the name of the directory in which site-specific
4488 html source pages are to be put. It is the responsibility of the
4489 Makefile.SH to get the value of this into the proper command.
4490 You must be prepared to do the ~name expansion yourself.
4491 The standard distribution will put nothing in this directory.
4492 After perl has been installed, users may install their own local
4493 html pages in this directory with
4494 MakeMaker Makefile.PL
4495 or equivalent. See INSTALL for details.
4497 sitehtml1direxp (sitehtml1dir.U):
4498 This variable is the same as the sitehtml1dir variable, but is filename
4499 expanded at configuration time, for convenient use in makefiles.
4501 sitehtml3dir (sitehtml3dir.U):
4502 This variable contains the name of the directory in which site-specific
4503 library html source pages are to be put. It is the responsibility of the
4504 Makefile.SH to get the value of this into the proper command.
4505 You must be prepared to do the ~name expansion yourself.
4506 The standard distribution will put nothing in this directory.
4507 After perl has been installed, users may install their own local
4508 library html pages in this directory with
4509 MakeMaker Makefile.PL
4510 or equivalent. See INSTALL for details.
4512 sitehtml3direxp (sitehtml3dir.U):
4513 This variable is the same as the sitehtml3dir variable, but is filename
4514 expanded at configuration time, for convenient use in makefiles.
4516 sitelib (sitelib.U):
4517 This variable contains the eventual value of the SITELIB symbol,
4518 which is the name of the private library for this package. It may
4519 have a ~ on the front. It is up to the makefile to eventually create
4520 this directory while performing installation (with ~ substitution).
4521 The standard distribution will put nothing in this directory.
4522 After perl has been installed, users may install their own local
4523 architecture-independent modules in this directory with
4524 MakeMaker Makefile.PL
4525 or equivalent. See INSTALL for details.
4527 sitelib_stem (sitelib.U):
4528 This variable is $sitelibexp with any trailing version-specific component
4529 removed. The elements in inc_version_list (inc_version_list.U) can
4530 be tacked onto this variable to generate a list of directories to search.
4532 sitelibexp (sitelib.U):
4533 This variable is the ~name expanded version of sitelib, so that you
4534 may use it directly in Makefiles or shell scripts.
4536 siteman1dir (siteman1dir.U):
4537 This variable contains the name of the directory in which site-specific
4538 manual source pages are to be put. It is the responsibility of the
4539 Makefile.SH to get the value of this into the proper command.
4540 You must be prepared to do the ~name expansion yourself.
4541 The standard distribution will put nothing in this directory.
4542 After perl has been installed, users may install their own local
4543 man1 pages in this directory with
4544 MakeMaker Makefile.PL
4545 or equivalent. See INSTALL for details.
4547 siteman1direxp (siteman1dir.U):
4548 This variable is the same as the siteman1dir variable, but is filename
4549 expanded at configuration time, for convenient use in makefiles.
4551 siteman3dir (siteman3dir.U):
4552 This variable contains the name of the directory in which site-specific
4553 library man source pages are to be put. It is the responsibility of the
4554 Makefile.SH to get the value of this into the proper command.
4555 You must be prepared to do the ~name expansion yourself.
4556 The standard distribution will put nothing in this directory.
4557 After perl has been installed, users may install their own local
4558 man3 pages in this directory with
4559 MakeMaker Makefile.PL
4560 or equivalent. See INSTALL for details.
4562 siteman3direxp (siteman3dir.U):
4563 This variable is the same as the siteman3dir variable, but is filename
4564 expanded at configuration time, for convenient use in makefiles.
4566 siteprefix (siteprefix.U):
4567 This variable holds the full absolute path of the directory below
4568 which the user will install add-on packages.
4569 See INSTALL for usage and examples.
4571 siteprefixexp (siteprefix.U):
4572 This variable holds the full absolute path of the directory below
4573 which the user will install add-on packages. Derived from siteprefix.
4575 sitescript (sitescript.U):
4576 This variable holds the name of the directory in which the user wants
4577 to put add-on publicly executable files for the package in question. It
4578 is most often a local directory such as /usr/local/bin. Programs using
4579 this variable must be prepared to deal with ~name substitution.
4580 The standard distribution will put nothing in this directory.
4581 After perl has been installed, users may install their own local
4582 scripts in this directory with
4583 MakeMaker Makefile.PL
4584 or equivalent. See INSTALL for details.
4586 sitescriptexp (sitescript.U):
4587 This is the same as the sitescript variable, but is filename expanded at
4588 configuration time, for use in your makefiles.
4590 sizesize (sizesize.U):
4591 This variable contains the size of a sizetype in bytes.
4593 sizetype (sizetype.U):
4594 This variable defines sizetype to be something like size_t,
4595 unsigned long, or whatever type is used to declare length
4596 parameters for string functions.
4599 This variable is defined but not used by Configure.
4600 The value is the empty string and is not useful.
4602 sLOCALTIME_max (time_size.U):
4603 This variable defines the maximum value of the time_t offset that
4604 the system function localtime () accepts
4606 sLOCALTIME_min (time_size.U):
4607 This variable defines the minimum value of the time_t offset that
4608 the system function localtime () accepts
4611 This variable is defined but not used by Configure.
4612 The value is the empty string and is not useful.
4615 This variable holds the extension used to identify shared libraries
4616 (also known as shared objects) on the system. Usually set to 'so'.
4618 sockethdr (d_socket.U):
4619 This variable has any cpp '-I' flags needed for socket support.
4621 socketlib (d_socket.U):
4622 This variable has the names of any libraries needed for socket support.
4624 socksizetype (socksizetype.U):
4625 This variable holds the type used for the size argument
4626 for various socket calls like accept. Usual values include
4627 socklen_t, size_t, and int.
4630 This variable is used internally by Configure to determine the
4631 full pathname (if any) of the sort program. After Configure runs,
4632 the value is reset to a plain "sort" and is not useful.
4634 spackage (package.U):
4635 This variable contains the name of the package being constructed,
4636 with the first letter uppercased, i.e. suitable for starting
4639 spitshell (spitshell.U):
4640 This variable contains the command necessary to spit out a runnable
4641 shell on this system. It is either cat or a grep '-v' for # comments.
4643 sPRId64 (quadfio.U):
4644 This variable, if defined, contains the string used by stdio to
4645 format 64-bit decimal numbers (format 'd') for output.
4647 sPRIeldbl (longdblfio.U):
4648 This variable, if defined, contains the string used by stdio to
4649 format long doubles (format 'e') for output.
4651 sPRIEUldbl (longdblfio.U):
4652 This variable, if defined, contains the string used by stdio to
4653 format long doubles (format 'E') for output.
4654 The 'U' in the name is to separate this from sPRIeldbl so that even
4655 case-blind systems can see the difference.
4657 sPRIfldbl (longdblfio.U):
4658 This variable, if defined, contains the string used by stdio to
4659 format long doubles (format 'f') for output.
4661 sPRIFUldbl (longdblfio.U):
4662 This variable, if defined, contains the string used by stdio to
4663 format long doubles (format 'F') for output.
4664 The 'U' in the name is to separate this from sPRIfldbl so that even
4665 case-blind systems can see the difference.
4667 sPRIgldbl (longdblfio.U):
4668 This variable, if defined, contains the string used by stdio to
4669 format long doubles (format 'g') for output.
4671 sPRIGUldbl (longdblfio.U):
4672 This variable, if defined, contains the string used by stdio to
4673 format long doubles (format 'G') for output.
4674 The 'U' in the name is to separate this from sPRIgldbl so that even
4675 case-blind systems can see the difference.
4677 sPRIi64 (quadfio.U):
4678 This variable, if defined, contains the string used by stdio to
4679 format 64-bit decimal numbers (format 'i') for output.
4681 sPRIo64 (quadfio.U):
4682 This variable, if defined, contains the string used by stdio to
4683 format 64-bit octal numbers (format 'o') for output.
4685 sPRIu64 (quadfio.U):
4686 This variable, if defined, contains the string used by stdio to
4687 format 64-bit unsigned decimal numbers (format 'u') for output.
4689 sPRIx64 (quadfio.U):
4690 This variable, if defined, contains the string used by stdio to
4691 format 64-bit hexadecimal numbers (format 'x') for output.
4693 sPRIXU64 (quadfio.U):
4694 This variable, if defined, contains the string used by stdio to
4695 format 64-bit hExADECimAl numbers (format 'X') for output.
4696 The 'U' in the name is to separate this from sPRIx64 so that even
4697 case-blind systems can see the difference.
4699 srand48_r_proto (d_srand48_r.U):
4700 This variable encodes the prototype of srand48_r.
4701 It is zero if d_srand48_r is undef, and one of the
4702 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srand48_r
4705 srandom_r_proto (d_srandom_r.U):
4706 This variable encodes the prototype of srandom_r.
4707 It is zero if d_srandom_r is undef, and one of the
4708 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srandom_r
4712 This variable holds the (possibly relative) path of the package source.
4713 It is up to the Makefile to use this variable and set VPATH accordingly
4714 to find the sources remotely. Use $pkgsrc to have an absolute path.
4716 sSCNfldbl (longdblfio.U):
4717 This variable, if defined, contains the string used by stdio to
4718 format long doubles (format 'f') for input.
4720 ssizetype (ssizetype.U):
4721 This variable defines ssizetype to be something like ssize_t,
4722 long or int. It is used by functions that return a count
4723 of bytes or an error condition. It must be a signed type.
4724 We will pick a type such that sizeof(SSize_t) == sizeof(Size_t).
4726 startperl (startperl.U):
4727 This variable contains the string to put on the front of a perl
4728 script to make sure (hopefully) that it runs with perl and not some
4729 shell. Of course, that leading line must be followed by the classical
4731 eval 'exec perl -S $0 ${1+"$@"}'
4732 if $running_under_some_shell;
4733 to guarantee perl startup should the shell execute the script. Note
4734 that this magic incatation is not understood by csh.
4736 startsh (startsh.U):
4737 This variable contains the string to put on the front of a shell
4738 script to make sure (hopefully) that it runs with sh and not some
4741 static_ext (Extensions.U):
4742 This variable holds a list of XS extension files we want to
4743 link statically into the package. It is used by Makefile.
4745 stdchar (stdchar.U):
4746 This variable conditionally defines STDCHAR to be the type of char
4747 used in stdio.h. It has the values "unsigned char" or "char".
4749 stdio_base (d_stdstdio.U):
4750 This variable defines how, given a FILE pointer, fp, to access the
4751 _base field (or equivalent) of stdio.h's FILE structure. This will
4752 be used to define the macro FILE_base(fp).
4754 stdio_bufsiz (d_stdstdio.U):
4755 This variable defines how, given a FILE pointer, fp, to determine
4756 the number of bytes store in the I/O buffer pointer to by the
4757 _base field (or equivalent) of stdio.h's FILE structure. This will
4758 be used to define the macro FILE_bufsiz(fp).
4760 stdio_cnt (d_stdstdio.U):
4761 This variable defines how, given a FILE pointer, fp, to access the
4762 _cnt field (or equivalent) of stdio.h's FILE structure. This will
4763 be used to define the macro FILE_cnt(fp).
4765 stdio_filbuf (d_stdstdio.U):
4766 This variable defines how, given a FILE pointer, fp, to tell
4767 stdio to refill its internal buffers (?). This will
4768 be used to define the macro FILE_filbuf(fp).
4770 stdio_ptr (d_stdstdio.U):
4771 This variable defines how, given a FILE pointer, fp, to access the
4772 _ptr field (or equivalent) of stdio.h's FILE structure. This will
4773 be used to define the macro FILE_ptr(fp).
4775 stdio_stream_array (stdio_streams.U):
4776 This variable tells the name of the array holding the stdio streams.
4777 Usual values include _iob, __iob, and __sF.
4779 strerror_r_proto (d_strerror_r.U):
4780 This variable encodes the prototype of strerror_r.
4781 It is zero if d_strerror_r is undef, and one of the
4782 REENTRANT_PROTO_T_ABC macros of reentr.h if d_strerror_r
4785 strings (i_string.U):
4786 This variable holds the full path of the string header that will be
4787 used. Typically /usr/include/string.h or /usr/include/strings.h.
4790 This variable is defined but not used by Configure.
4791 The value is the empty string and is not useful.
4793 subversion (patchlevel.U):
4794 The subversion level of this package.
4795 The value of subversion comes from the patchlevel.h file.
4796 In a version number such as 5.6.1, this is the "1".
4797 In patchlevel.h, this is referred to as "PERL_SUBVERSION".
4798 This is unique to perl.
4801 This variable holds the place where the manual is located on this
4802 system. It is not the place where the user wants to put his manual
4803 pages. Rather it is the place where Configure may look to find manual
4804 for unix commands (section 1 of the manual usually). See mansrc.
4807 This variable is defined but not used by Configure.
4808 The value is the empty string and is not useful.
4811 This variable is defined but not used by Configure.
4812 The value is the empty string and is not useful.
4814 targetarch (Cross.U):
4815 If cross-compiling, this variable contains the target architecture.
4816 If not, this will be empty.
4819 This variable is defined but not used by Configure.
4820 The value is the empty string and is not useful.
4823 This variable is defined but not used by Configure.
4824 The value is the empty string and is not useful.
4827 This variable is used internally by Configure to determine the
4828 full pathname (if any) of the test program. After Configure runs,
4829 the value is reset to a plain "test" and is not useful.
4831 timeincl (i_time.U):
4832 This variable holds the full path of the included time header(s).
4834 timetype (d_time.U):
4835 This variable holds the type returned by time(). It can be long,
4836 or time_t on BSD sites (in which case <sys/types.h> should be
4837 included). Anyway, the type Time_t should be used.
4839 tmpnam_r_proto (d_tmpnam_r.U):
4840 This variable encodes the prototype of tmpnam_r.
4841 It is zero if d_tmpnam_r is undef, and one of the
4842 REENTRANT_PROTO_T_ABC macros of reentr.h if d_tmpnam_r
4846 This variable contains the command used by Configure
4847 to copy to from the target host. Useful and available
4848 only during Perl build.
4849 The string ':' if not cross-compiling.
4852 This variable is used internally by Configure to determine the
4853 full pathname (if any) of the touch program. After Configure runs,
4854 the value is reset to a plain "touch" and is not useful.
4857 This variable is used internally by Configure to determine the
4858 full pathname (if any) of the tr program. After Configure runs,
4859 the value is reset to a plain "tr" and is not useful.
4862 This variable contains the value to be passed to the tr(1)
4863 command to transliterate a newline. Typical values are
4864 '\012' and '\n'. This is needed for EBCDIC systems where
4865 newline is not necessarily '\012'.
4868 This variable is defined but not used by Configure.
4869 The value is the empty string and is not useful.
4871 ttyname_r_proto (d_ttyname_r.U):
4872 This variable encodes the prototype of ttyname_r.
4873 It is zero if d_ttyname_r is undef, and one of the
4874 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ttyname_r
4878 This variable is the size of an U16 in bytes.
4881 This variable contains the C type used for Perl's U16.
4884 This variable is the size of an U32 in bytes.
4887 This variable contains the C type used for Perl's U32.
4890 This variable is the size of an U64 in bytes.
4893 This variable contains the C type used for Perl's U64.
4896 This variable is the size of an U8 in bytes.
4899 This variable contains the C type used for Perl's U8.
4902 This variable contains the format string used for printing a Uid_t.
4904 uidsign (uidsign.U):
4905 This variable contains the signedness of a uidtype.
4906 1 for unsigned, -1 for signed.
4908 uidsize (uidsize.U):
4909 This variable contains the size of a uidtype in bytes.
4911 uidtype (uidtype.U):
4912 This variable defines Uid_t to be something like uid_t, int,
4913 ushort, or whatever type is used to declare user ids in the kernel.
4916 This variable is used internally by Configure to determine the
4917 full pathname (if any) of the uname program. After Configure runs,
4918 the value is reset to a plain "uname" and is not useful.
4921 This variable is used internally by Configure to determine the
4922 full pathname (if any) of the uniq program. After Configure runs,
4923 the value is reset to a plain "uniq" and is not useful.
4925 uquadtype (quadtype.U):
4926 This variable defines Uquad_t to be something like unsigned long,
4927 unsigned int, unsigned long long, uint64_t, or whatever type is
4928 used for 64-bit integers.
4930 use5005threads (usethreads.U):
4931 This variable conditionally defines the USE_5005THREADS symbol,
4932 and indicates that Perl should be built to use the 5.005-based
4933 threading implementation. Only valid up to 5.8.x.
4935 use64bitall (use64bits.U):
4936 This variable conditionally defines the USE_64_BIT_ALL symbol,
4937 and indicates that 64-bit integer types should be used
4938 when available. The maximal possible
4939 64-bitness is employed: LP64 or ILP64, meaning that you will
4940 be able to use more than 2 gigabytes of memory. This mode is
4941 even more binary incompatible than USE_64_BIT_INT. You may not
4942 be able to run the resulting executable in a 32-bit CPU at all or
4943 you may need at least to reboot your OS to 64-bit mode.
4945 use64bitint (use64bits.U):
4946 This variable conditionally defines the USE_64_BIT_INT symbol,
4947 and indicates that 64-bit integer types should be used
4948 when available. The minimal possible 64-bitness
4949 is employed, just enough to get 64-bit integers into Perl.
4950 This may mean using for example "long longs", while your memory
4951 may still be limited to 2 gigabytes.
4953 usecrosscompile (Cross.U):
4954 This variable conditionally defines the USE_CROSS_COMPILE symbol,
4955 and indicates that Perl has been cross-compiled.
4958 This variable indicates that Perl was configured with development
4959 features enabled. This should not be done for production builds.
4962 This variable indicates if the system supports dynamic
4963 loading of some sort. See also dlsrc and dlobj.
4965 usedtrace (usedtrace.U):
4966 This variable indicates whether we are compiling with dtrace
4967 support. See also dtrace.
4969 usefaststdio (usefaststdio.U):
4970 This variable conditionally defines the USE_FAST_STDIO symbol,
4971 and indicates that Perl should be built to use 'fast stdio'.
4972 Defaults to define in Perls 5.8 and earlier, to undef later.
4974 useithreads (usethreads.U):
4975 This variable conditionally defines the USE_ITHREADS symbol,
4976 and indicates that Perl should be built to use the interpreter-based
4977 threading implementation.
4979 uselargefiles (uselfs.U):
4980 This variable conditionally defines the USE_LARGE_FILES symbol,
4981 and indicates that large file interfaces should be used when
4984 uselongdouble (uselongdbl.U):
4985 This variable conditionally defines the USE_LONG_DOUBLE symbol,
4986 and indicates that long doubles should be used when available.
4988 usemallocwrap (mallocsrc.U):
4989 This variable contains y if we are wrapping malloc to prevent
4990 integer overflow during size calculations.
4992 usemorebits (usemorebits.U):
4993 This variable conditionally defines the USE_MORE_BITS symbol,
4994 and indicates that explicit 64-bit interfaces and long doubles
4995 should be used when available.
4997 usemultiplicity (usemultiplicity.U):
4998 This variable conditionally defines the MULTIPLICITY symbol,
4999 and indicates that Perl should be built to use multiplicity.
5001 usemymalloc (mallocsrc.U):
5002 This variable contains y if the malloc that comes with this package
5003 is desired over the system's version of malloc. People often include
5004 special versions of malloc for effiency, but such versions are often
5005 less portable. See also mallocsrc and mallocobj.
5006 If this is 'y', then -lmalloc is removed from $libs.
5009 This variable contains 'true' or 'false' depending whether the
5010 nm extraction is wanted or not.
5012 useopcode (Extensions.U):
5013 This variable holds either 'true' or 'false' to indicate
5014 whether the Opcode extension should be used. The sole
5015 use for this currently is to allow an easy mechanism
5016 for users to skip the Opcode extension from the Configure
5019 useperlio (useperlio.U):
5020 This variable conditionally defines the USE_PERLIO symbol,
5021 and indicates that the PerlIO abstraction should be
5024 useposix (Extensions.U):
5025 This variable holds either 'true' or 'false' to indicate
5026 whether the POSIX extension should be used. The sole
5027 use for this currently is to allow an easy mechanism
5028 for hints files to indicate that POSIX will not compile
5029 on a particular system.
5031 usereentrant (usethreads.U):
5032 This variable conditionally defines the USE_REENTRANT_API symbol,
5033 which indicates that the thread code may try to use the various
5034 _r versions of library functions. This is only potentially
5035 meaningful if usethreads is set and is very experimental, it is
5036 not even prompted for.
5038 userelocatableinc (bin.U):
5039 This variable is set to true to indicate that perl should relocate
5040 @INC entries at runtime based on the path to the perl binary.
5041 Any @INC paths starting ".../" are relocated relative to the directory
5042 containing the perl binary, and a logical cleanup of the path is then
5043 made around the join point (removing "dir/../" pairs)
5046 This variable is set to true when the user agrees to use sfio.
5047 It is set to false when sfio is not available or when the user
5048 explicitely requests not to use sfio. It is here primarily so
5049 that command-line settings can override the auto-detection of
5050 d_sfio without running into a "WHOA THERE".
5052 useshrplib (libperl.U):
5053 This variable is set to 'true' if the user wishes
5054 to build a shared libperl, and 'false' otherwise.
5056 usesitecustomize (d_sitecustomize.U):
5057 This variable is set to true when the user requires a mechanism that
5058 allows the sysadmin to add entries to @INC at runtime. This variable
5059 being set, makes perl run '$sitelib/sitecustomize.pl' at startup.
5061 usesocks (usesocks.U):
5062 This variable conditionally defines the USE_SOCKS symbol,
5063 and indicates that Perl should be built to use SOCKS.
5065 usethreads (usethreads.U):
5066 This variable conditionally defines the USE_THREADS symbol,
5067 and indicates that Perl should be built to use threads.
5069 usevendorprefix (vendorprefix.U):
5070 This variable tells whether the vendorprefix
5071 and consequently other vendor* paths are in use.
5073 usevfork (d_vfork.U):
5074 This variable is set to true when the user accepts to use vfork.
5075 It is set to false when no vfork is available or when the user
5076 explicitely requests not to use vfork.
5079 This variable holds the path of the include files, which is
5080 usually /usr/include. It is mainly used by other Configure units.
5083 This variable is defined but not used by Configure.
5084 The value is the empty string and is not useful.
5086 uvoformat (perlxvf.U):
5087 This variable contains the format string used for printing
5088 a Perl UV as an unsigned octal integer.
5091 This variable is the size of a UV in bytes.
5094 This variable contains the C type used for Perl's UV.
5096 uvuformat (perlxvf.U):
5097 This variable contains the format string used for printing
5098 a Perl UV as an unsigned decimal integer.
5100 uvxformat (perlxvf.U):
5101 This variable contains the format string used for printing
5102 a Perl UV as an unsigned hexadecimal integer in lowercase abcdef.
5104 uvXUformat (perlxvf.U):
5105 This variable contains the format string used for printing
5106 a Perl UV as an unsigned hexadecimal integer in uppercase ABCDEF.
5108 vaproto (vaproto.U):
5109 This variable conditionally defines CAN_VAPROTO on systems supporting
5110 prototype declaration of functions with a variable number of
5111 arguments. See also prototype.
5113 vendorarch (vendorarch.U):
5114 This variable contains the value of the PERL_VENDORARCH symbol.
5115 It may have a ~ on the front.
5116 The standard distribution will put nothing in this directory.
5117 Vendors who distribute perl may wish to place their own
5118 architecture-dependent modules and extensions in this directory with
5119 MakeMaker Makefile.PL INSTALLDIRS=vendor
5120 or equivalent. See INSTALL for details.
5122 vendorarchexp (vendorarch.U):
5123 This variable is the ~name expanded version of vendorarch, so that you
5124 may use it directly in Makefiles or shell scripts.
5126 vendorbin (vendorbin.U):
5127 This variable contains the eventual value of the VENDORBIN symbol.
5128 It may have a ~ on the front.
5129 The standard distribution will put nothing in this directory.
5130 Vendors who distribute perl may wish to place additional
5131 binaries in this directory with
5132 MakeMaker Makefile.PL INSTALLDIRS=vendor
5133 or equivalent. See INSTALL for details.
5135 vendorbinexp (vendorbin.U):
5136 This variable is the ~name expanded version of vendorbin, so that you
5137 may use it directly in Makefiles or shell scripts.
5139 vendorhtml1dir (vendorhtml1dir.U):
5140 This variable contains the name of the directory for html
5141 pages. It may have a ~ on the front.
5142 The standard distribution will put nothing in this directory.
5143 Vendors who distribute perl may wish to place their own
5144 html pages in this directory with
5145 MakeMaker Makefile.PL INSTALLDIRS=vendor
5146 or equivalent. See INSTALL for details.
5148 vendorhtml1direxp (vendorhtml1dir.U):
5149 This variable is the ~name expanded version of vendorhtml1dir, so that you
5150 may use it directly in Makefiles or shell scripts.
5152 vendorhtml3dir (vendorhtml3dir.U):
5153 This variable contains the name of the directory for html
5154 library pages. It may have a ~ on the front.
5155 The standard distribution will put nothing in this directory.
5156 Vendors who distribute perl may wish to place their own
5157 html pages for modules and extensions in this directory with
5158 MakeMaker Makefile.PL INSTALLDIRS=vendor
5159 or equivalent. See INSTALL for details.
5161 vendorhtml3direxp (vendorhtml3dir.U):
5162 This variable is the ~name expanded version of vendorhtml3dir, so that you
5163 may use it directly in Makefiles or shell scripts.
5165 vendorlib (vendorlib.U):
5166 This variable contains the eventual value of the VENDORLIB symbol,
5167 which is the name of the private library for this package.
5168 The standard distribution will put nothing in this directory.
5169 Vendors who distribute perl may wish to place their own
5170 modules in this directory with
5171 MakeMaker Makefile.PL INSTALLDIRS=vendor
5172 or equivalent. See INSTALL for details.
5174 vendorlib_stem (vendorlib.U):
5175 This variable is $vendorlibexp with any trailing version-specific component
5176 removed. The elements in inc_version_list (inc_version_list.U) can
5177 be tacked onto this variable to generate a list of directories to search.
5179 vendorlibexp (vendorlib.U):
5180 This variable is the ~name expanded version of vendorlib, so that you
5181 may use it directly in Makefiles or shell scripts.
5183 vendorman1dir (vendorman1dir.U):
5184 This variable contains the name of the directory for man1
5185 pages. It may have a ~ on the front.
5186 The standard distribution will put nothing in this directory.
5187 Vendors who distribute perl may wish to place their own
5188 man1 pages in this directory with
5189 MakeMaker Makefile.PL INSTALLDIRS=vendor
5190 or equivalent. See INSTALL for details.
5192 vendorman1direxp (vendorman1dir.U):
5193 This variable is the ~name expanded version of vendorman1dir, so that you
5194 may use it directly in Makefiles or shell scripts.
5196 vendorman3dir (vendorman3dir.U):
5197 This variable contains the name of the directory for man3
5198 pages. It may have a ~ on the front.
5199 The standard distribution will put nothing in this directory.
5200 Vendors who distribute perl may wish to place their own
5201 man3 pages in this directory with
5202 MakeMaker Makefile.PL INSTALLDIRS=vendor
5203 or equivalent. See INSTALL for details.
5205 vendorman3direxp (vendorman3dir.U):
5206 This variable is the ~name expanded version of vendorman3dir, so that you
5207 may use it directly in Makefiles or shell scripts.
5209 vendorprefix (vendorprefix.U):
5210 This variable holds the full absolute path of the directory below
5211 which the vendor will install add-on packages.
5212 See INSTALL for usage and examples.
5214 vendorprefixexp (vendorprefix.U):
5215 This variable holds the full absolute path of the directory below
5216 which the vendor will install add-on packages. Derived from vendorprefix.
5218 vendorscript (vendorscript.U):
5219 This variable contains the eventual value of the VENDORSCRIPT symbol.
5220 It may have a ~ on the front.
5221 The standard distribution will put nothing in this directory.
5222 Vendors who distribute perl may wish to place additional
5223 executable scripts in this directory with
5224 MakeMaker Makefile.PL INSTALLDIRS=vendor
5225 or equivalent. See INSTALL for details.
5227 vendorscriptexp (vendorscript.U):
5228 This variable is the ~name expanded version of vendorscript, so that you
5229 may use it directly in Makefiles or shell scripts.
5231 version (patchlevel.U):
5232 The full version number of this package, such as 5.6.1 (or 5_6_1).
5233 This combines revision, patchlevel, and subversion to get the
5234 full version number, including any possible subversions.
5235 This is suitable for use as a directory name, and hence is
5236 filesystem dependent.
5238 version_patchlevel_string (patchlevel.U):
5239 This is a string combining version, subversion and
5240 perl_patchlevel (if perl_patchlevel is non-zero).
5241 It is typically something like
5242 'version 7 subversion 1' or
5243 'version 7 subversion 1 patchlevel 11224'
5244 It is computed here to avoid duplication of code in myconfig.SH
5247 versiononly (versiononly.U):
5248 If set, this symbol indicates that only the version-specific
5249 components of a perl installation should be installed.
5250 This may be useful for making a test installation of a new
5251 version without disturbing the existing installation.
5252 Setting versiononly is equivalent to setting installperl's -v option.
5253 In particular, the non-versioned scripts and programs such as
5254 a2p, c2ph, h2xs, pod2*, and perldoc are not installed
5255 (see INSTALL for a more complete list). Nor are the man
5257 Usually, this is undef.
5260 This variable is defined but not used by Configure.
5261 The value is the empty string and is not useful.
5263 voidflags (voidflags.U):
5264 This variable contains the eventual value of the VOIDFLAGS symbol,
5265 which indicates how much support of the void type is given by this
5266 compiler. See VOIDFLAGS for more info.
5269 This variable holds extra path (space-separated) used to find
5270 libraries on this platform, for example CPU-specific libraries
5271 (on multi-CPU platforms) may be listed here.
5274 This variable holds the name of the compiler compiler we
5275 want to use in the Makefile. It can be yacc, byacc, or bison -y.
5278 This variable contains any additional yacc flags desired by the
5279 user. It is up to the Makefile to use this.
5282 This variable is defined but not used by Configure.
5283 The value is the empty string and is not useful.
5286 This variable is used internally by Configure to determine the
5287 full pathname (if any) of the zip program. After Configure runs,
5288 the value is reset to a plain "zip" and is not useful.