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_PRId64 (quadfio.U):
1621 This variable conditionally defines the PERL_PRId64 symbol, which
1622 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1624 d_PRIeldbl (longdblfio.U):
1625 This variable conditionally defines the PERL_PRIfldbl symbol, which
1626 indiciates that stdio has a symbol to print long doubles.
1628 d_PRIEUldbl (longdblfio.U):
1629 This variable conditionally defines the PERL_PRIfldbl symbol, which
1630 indiciates that stdio has a symbol to print long doubles.
1631 The 'U' in the name is to separate this from d_PRIeldbl so that even
1632 case-blind systems can see the difference.
1634 d_PRIfldbl (longdblfio.U):
1635 This variable conditionally defines the PERL_PRIfldbl symbol, which
1636 indiciates that stdio has a symbol to print long doubles.
1638 d_PRIFUldbl (longdblfio.U):
1639 This variable conditionally defines the PERL_PRIfldbl symbol, which
1640 indiciates that stdio has a symbol to print long doubles.
1641 The 'U' in the name is to separate this from d_PRIfldbl so that even
1642 case-blind systems can see the difference.
1644 d_PRIgldbl (longdblfio.U):
1645 This variable conditionally defines the PERL_PRIfldbl symbol, which
1646 indiciates that stdio has a symbol to print long doubles.
1648 d_PRIGUldbl (longdblfio.U):
1649 This variable conditionally defines the PERL_PRIfldbl symbol, which
1650 indiciates that stdio has a symbol to print long doubles.
1651 The 'U' in the name is to separate this from d_PRIgldbl so that even
1652 case-blind systems can see the difference.
1654 d_PRIi64 (quadfio.U):
1655 This variable conditionally defines the PERL_PRIi64 symbol, which
1656 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1658 d_printf_format_null (d_attribut.U):
1659 This variable conditionally defines PRINTF_FORMAT_NULL_OK, which
1660 indicates the C compiler allows printf-like formats to be null.
1662 d_PRIo64 (quadfio.U):
1663 This variable conditionally defines the PERL_PRIo64 symbol, which
1664 indiciates that stdio has a symbol to print 64-bit octal numbers.
1666 d_PRIu64 (quadfio.U):
1667 This variable conditionally defines the PERL_PRIu64 symbol, which
1668 indiciates that stdio has a symbol to print 64-bit unsigned decimal
1671 d_PRIx64 (quadfio.U):
1672 This variable conditionally defines the PERL_PRIx64 symbol, which
1673 indiciates that stdio has a symbol to print 64-bit hexadecimal numbers.
1675 d_PRIXU64 (quadfio.U):
1676 This variable conditionally defines the PERL_PRIXU64 symbol, which
1677 indiciates that stdio has a symbol to print 64-bit hExADECimAl numbers.
1678 The 'U' in the name is to separate this from d_PRIx64 so that even
1679 case-blind systems can see the difference.
1681 d_procselfexe (d_procselfexe.U):
1682 Defined if $procselfexe is symlink to the absolute
1683 pathname of the executing program.
1685 d_pseudofork (d_vfork.U):
1686 This variable conditionally defines the HAS_PSEUDOFORK symbol,
1687 which indicates that an emulation of the fork routine is available.
1689 d_pthread_atfork (d_pthread_atfork.U):
1690 This variable conditionally defines the HAS_PTHREAD_ATFORK symbol,
1691 which indicates to the C program that the pthread_atfork()
1692 routine is available.
1694 d_pthread_attr_setscope (d_pthread_attr_ss.U):
1695 This variable conditionally defines HAS_PTHREAD_ATTR_SETSCOPE if
1696 pthread_attr_setscope() is available to set the contention scope
1697 attribute of a thread attribute object.
1699 d_pthread_yield (d_pthread_y.U):
1700 This variable conditionally defines the HAS_PTHREAD_YIELD
1701 symbol if the pthread_yield routine is available to yield
1702 the execution of the current thread.
1705 This variable conditionally defines PWAGE, which indicates
1706 that struct passwd contains pw_age.
1708 d_pwchange (i_pwd.U):
1709 This variable conditionally defines PWCHANGE, which indicates
1710 that struct passwd contains pw_change.
1712 d_pwclass (i_pwd.U):
1713 This variable conditionally defines PWCLASS, which indicates
1714 that struct passwd contains pw_class.
1716 d_pwcomment (i_pwd.U):
1717 This variable conditionally defines PWCOMMENT, which indicates
1718 that struct passwd contains pw_comment.
1720 d_pwexpire (i_pwd.U):
1721 This variable conditionally defines PWEXPIRE, which indicates
1722 that struct passwd contains pw_expire.
1724 d_pwgecos (i_pwd.U):
1725 This variable conditionally defines PWGECOS, which indicates
1726 that struct passwd contains pw_gecos.
1728 d_pwpasswd (i_pwd.U):
1729 This variable conditionally defines PWPASSWD, which indicates
1730 that struct passwd contains pw_passwd.
1732 d_pwquota (i_pwd.U):
1733 This variable conditionally defines PWQUOTA, which indicates
1734 that struct passwd contains pw_quota.
1736 d_qgcvt (d_qgcvt.U):
1737 This variable conditionally defines the HAS_QGCVT symbol, which
1738 indicates to the C program that the qgcvt() routine is available.
1740 d_quad (quadtype.U):
1741 This variable, if defined, tells that there's a 64-bit integer type,
1744 d_random_r (d_random_r.U):
1745 This variable conditionally defines the HAS_RANDOM_R symbol,
1746 which indicates to the C program that the random_r()
1747 routine is available.
1749 d_readdir (d_readdir.U):
1750 This variable conditionally defines HAS_READDIR if readdir() is
1751 available to read directory entries.
1753 d_readdir64_r (d_readdir64_r.U):
1754 This variable conditionally defines the HAS_READDIR64_R symbol,
1755 which indicates to the C program that the readdir64_r()
1756 routine is available.
1758 d_readdir_r (d_readdir_r.U):
1759 This variable conditionally defines the HAS_READDIR_R symbol,
1760 which indicates to the C program that the readdir_r()
1761 routine is available.
1763 d_readlink (d_readlink.U):
1764 This variable conditionally defines the HAS_READLINK symbol, which
1765 indicates to the C program that the readlink() routine is available
1766 to read the value of a symbolic link.
1768 d_readv (d_readv.U):
1769 This variable conditionally defines the HAS_READV symbol, which
1770 indicates to the C program that the readv() routine is available.
1772 d_recvmsg (d_recvmsg.U):
1773 This variable conditionally defines the HAS_RECVMSG symbol, which
1774 indicates to the C program that the recvmsg() routine is available.
1776 d_rename (d_rename.U):
1777 This variable conditionally defines the HAS_RENAME symbol, which
1778 indicates to the C program that the rename() routine is available
1781 d_rewinddir (d_readdir.U):
1782 This variable conditionally defines HAS_REWINDDIR if rewinddir() is
1785 d_rmdir (d_rmdir.U):
1786 This variable conditionally defines HAS_RMDIR if rmdir() is
1787 available to remove directories.
1789 d_safebcpy (d_safebcpy.U):
1790 This variable conditionally defines the HAS_SAFE_BCOPY symbol if
1791 the bcopy() routine can do overlapping copies. Normally, you
1792 should probably use memmove().
1794 d_safemcpy (d_safemcpy.U):
1795 This variable conditionally defines the HAS_SAFE_MEMCPY symbol if
1796 the memcpy() routine can do overlapping copies.
1797 For overlapping copies, memmove() should be used, if available.
1799 d_sanemcmp (d_sanemcmp.U):
1800 This variable conditionally defines the HAS_SANE_MEMCMP symbol if
1801 the memcpy() routine is available and can be used to compare relative
1802 magnitudes of chars with their high bits set.
1804 d_sbrkproto (d_sbrkproto.U):
1805 This variable conditionally defines the HAS_SBRK_PROTO symbol,
1806 which indicates to the C program that the system provides
1807 a prototype for the sbrk() function. Otherwise, it is
1808 up to the program to supply one.
1810 d_scalbnl (d_scalbnl.U):
1811 This variable conditionally defines the HAS_SCALBNL symbol, which
1812 indicates to the C program that the scalbnl() routine is available.
1813 If ilogbl is also present we can emulate frexpl.
1815 d_sched_yield (d_pthread_y.U):
1816 This variable conditionally defines the HAS_SCHED_YIELD
1817 symbol if the sched_yield routine is available to yield
1818 the execution of the current thread.
1820 d_scm_rights (d_socket.U):
1821 This variable conditionally defines the HAS_SCM_RIGHTS symbol,
1822 which indicates that the SCM_RIGHTS is available. #ifdef is
1823 not enough because it may be an enum, glibc has been known to do this.
1825 d_SCNfldbl (longdblfio.U):
1826 This variable conditionally defines the PERL_PRIfldbl symbol, which
1827 indiciates that stdio has a symbol to scan long doubles.
1829 d_seekdir (d_readdir.U):
1830 This variable conditionally defines HAS_SEEKDIR if seekdir() is
1833 d_select (d_select.U):
1834 This variable conditionally defines HAS_SELECT if select() is
1835 available to select active file descriptors. A <sys/time.h>
1836 inclusion may be necessary for the timeout field.
1839 This variable conditionally defines the HAS_SEM symbol, which
1840 indicates that the entire sem*(2) library is present.
1842 d_semctl (d_semctl.U):
1843 This variable conditionally defines the HAS_SEMCTL symbol, which
1844 indicates to the C program that the semctl() routine is available.
1846 d_semctl_semid_ds (d_union_semun.U):
1847 This variable conditionally defines USE_SEMCTL_SEMID_DS, which
1848 indicates that struct semid_ds * is to be used for semctl IPC_STAT.
1850 d_semctl_semun (d_union_semun.U):
1851 This variable conditionally defines USE_SEMCTL_SEMUN, which
1852 indicates that union semun is to be used for semctl IPC_STAT.
1854 d_semget (d_semget.U):
1855 This variable conditionally defines the HAS_SEMGET symbol, which
1856 indicates to the C program that the semget() routine is available.
1858 d_semop (d_semop.U):
1859 This variable conditionally defines the HAS_SEMOP symbol, which
1860 indicates to the C program that the semop() routine is available.
1862 d_sendmsg (d_sendmsg.U):
1863 This variable conditionally defines the HAS_SENDMSG symbol, which
1864 indicates to the C program that the sendmsg() routine is available.
1866 d_setegid (d_setegid.U):
1867 This variable conditionally defines the HAS_SETEGID symbol, which
1868 indicates to the C program that the setegid() routine is available
1869 to change the effective gid of the current program.
1871 d_seteuid (d_seteuid.U):
1872 This variable conditionally defines the HAS_SETEUID symbol, which
1873 indicates to the C program that the seteuid() routine is available
1874 to change the effective uid of the current program.
1876 d_setgrent (d_setgrent.U):
1877 This variable conditionally defines the HAS_SETGRENT symbol, which
1878 indicates to the C program that the setgrent() routine is available
1879 for initializing sequential access to the group database.
1881 d_setgrent_r (d_setgrent_r.U):
1882 This variable conditionally defines the HAS_SETGRENT_R symbol,
1883 which indicates to the C program that the setgrent_r()
1884 routine is available.
1886 d_setgrps (d_setgrps.U):
1887 This variable conditionally defines the HAS_SETGROUPS symbol, which
1888 indicates to the C program that the setgroups() routine is available
1889 to set the list of process groups.
1891 d_sethent (d_sethent.U):
1892 This variable conditionally defines HAS_SETHOSTENT if sethostent() is
1895 d_sethostent_r (d_sethostent_r.U):
1896 This variable conditionally defines the HAS_SETHOSTENT_R symbol,
1897 which indicates to the C program that the sethostent_r()
1898 routine is available.
1900 d_setitimer (d_setitimer.U):
1901 This variable conditionally defines the HAS_SETITIMER symbol, which
1902 indicates to the C program that the setitimer() routine is available.
1904 d_setlinebuf (d_setlnbuf.U):
1905 This variable conditionally defines the HAS_SETLINEBUF symbol, which
1906 indicates to the C program that the setlinebuf() routine is available
1907 to change stderr or stdout from block-buffered or unbuffered to a
1910 d_setlocale (d_setlocale.U):
1911 This variable conditionally defines HAS_SETLOCALE if setlocale() is
1912 available to handle locale-specific ctype implementations.
1914 d_setlocale_r (d_setlocale_r.U):
1915 This variable conditionally defines the HAS_SETLOCALE_R symbol,
1916 which indicates to the C program that the setlocale_r()
1917 routine is available.
1919 d_setnent (d_setnent.U):
1920 This variable conditionally defines HAS_SETNETENT if setnetent() is
1923 d_setnetent_r (d_setnetent_r.U):
1924 This variable conditionally defines the HAS_SETNETENT_R symbol,
1925 which indicates to the C program that the setnetent_r()
1926 routine is available.
1928 d_setpent (d_setpent.U):
1929 This variable conditionally defines HAS_SETPROTOENT if setprotoent() is
1932 d_setpgid (d_setpgid.U):
1933 This variable conditionally defines the HAS_SETPGID symbol if the
1934 setpgid(pid, gpid) function is available to set process group ID.
1936 d_setpgrp (d_setpgrp.U):
1937 This variable conditionally defines HAS_SETPGRP if setpgrp() is
1938 available to set the current process group.
1940 d_setpgrp2 (d_setpgrp2.U):
1941 This variable conditionally defines the HAS_SETPGRP2 symbol, which
1942 indicates to the C program that the setpgrp2() (as in DG/UX) routine
1943 is available to set the current process group.
1945 d_setprior (d_setprior.U):
1946 This variable conditionally defines HAS_SETPRIORITY if setpriority()
1947 is available to set a process's priority.
1949 d_setproctitle (d_setproctitle.U):
1950 This variable conditionally defines the HAS_SETPROCTITLE symbol,
1951 which indicates to the C program that the setproctitle() routine
1954 d_setprotoent_r (d_setprotoent_r.U):
1955 This variable conditionally defines the HAS_SETPROTOENT_R symbol,
1956 which indicates to the C program that the setprotoent_r()
1957 routine is available.
1959 d_setpwent (d_setpwent.U):
1960 This variable conditionally defines the HAS_SETPWENT symbol, which
1961 indicates to the C program that the setpwent() routine is available
1962 for initializing sequential access to the passwd database.
1964 d_setpwent_r (d_setpwent_r.U):
1965 This variable conditionally defines the HAS_SETPWENT_R symbol,
1966 which indicates to the C program that the setpwent_r()
1967 routine is available.
1969 d_setregid (d_setregid.U):
1970 This variable conditionally defines HAS_SETREGID if setregid() is
1971 available to change the real and effective gid of the current
1974 d_setresgid (d_setregid.U):
1975 This variable conditionally defines HAS_SETRESGID if setresgid() is
1976 available to change the real, effective and saved gid of the current
1979 d_setresuid (d_setreuid.U):
1980 This variable conditionally defines HAS_SETREUID if setresuid() is
1981 available to change the real, effective and saved uid of the current
1984 d_setreuid (d_setreuid.U):
1985 This variable conditionally defines HAS_SETREUID if setreuid() is
1986 available to change the real and effective uid of the current
1989 d_setrgid (d_setrgid.U):
1990 This variable conditionally defines the HAS_SETRGID symbol, which
1991 indicates to the C program that the setrgid() routine is available
1992 to change the real gid of the current program.
1994 d_setruid (d_setruid.U):
1995 This variable conditionally defines the HAS_SETRUID symbol, which
1996 indicates to the C program that the setruid() routine is available
1997 to change the real uid of the current program.
1999 d_setsent (d_setsent.U):
2000 This variable conditionally defines HAS_SETSERVENT if setservent() is
2003 d_setservent_r (d_setservent_r.U):
2004 This variable conditionally defines the HAS_SETSERVENT_R symbol,
2005 which indicates to the C program that the setservent_r()
2006 routine is available.
2008 d_setsid (d_setsid.U):
2009 This variable conditionally defines HAS_SETSID if setsid() is
2010 available to set the process group ID.
2012 d_setvbuf (d_setvbuf.U):
2013 This variable conditionally defines the HAS_SETVBUF symbol, which
2014 indicates to the C program that the setvbuf() routine is available
2015 to change buffering on an open stdio stream.
2018 This variable conditionally defines the USE_SFIO symbol,
2019 and indicates whether sfio is available (and should be used).
2022 This variable conditionally defines the HAS_SHM symbol, which
2023 indicates that the entire shm*(2) library is present.
2025 d_shmat (d_shmat.U):
2026 This variable conditionally defines the HAS_SHMAT symbol, which
2027 indicates to the C program that the shmat() routine is available.
2029 d_shmatprototype (d_shmat.U):
2030 This variable conditionally defines the HAS_SHMAT_PROTOTYPE
2031 symbol, which indicates that sys/shm.h has a prototype for
2034 d_shmctl (d_shmctl.U):
2035 This variable conditionally defines the HAS_SHMCTL symbol, which
2036 indicates to the C program that the shmctl() routine is available.
2038 d_shmdt (d_shmdt.U):
2039 This variable conditionally defines the HAS_SHMDT symbol, which
2040 indicates to the C program that the shmdt() routine is available.
2042 d_shmget (d_shmget.U):
2043 This variable conditionally defines the HAS_SHMGET symbol, which
2044 indicates to the C program that the shmget() routine is available.
2046 d_sigaction (d_sigaction.U):
2047 This variable conditionally defines the HAS_SIGACTION symbol, which
2048 indicates that the Vr4 sigaction() routine is available.
2050 d_signbit (d_signbit.U):
2051 This variable conditionally defines the HAS_SIGNBIT symbol, which
2052 indicates to the C program that the signbit() routine is available
2053 and safe to use with perl's intern NV type.
2055 d_sigprocmask (d_sigprocmask.U):
2056 This variable conditionally defines HAS_SIGPROCMASK
2057 if sigprocmask() is available to examine or change the signal mask
2058 of the calling process.
2060 d_sigsetjmp (d_sigsetjmp.U):
2061 This variable conditionally defines the HAS_SIGSETJMP symbol,
2062 which indicates that the sigsetjmp() routine is available to
2063 call setjmp() and optionally save the process's signal mask.
2065 d_sitearch (sitearch.U):
2066 This variable conditionally defines SITEARCH to hold the pathname
2067 of architecture-dependent library files for $package. If
2068 $sitearch is the same as $archlib, then this is set to undef.
2070 d_snprintf (d_snprintf.U):
2071 This variable conditionally defines the HAS_SNPRINTF symbol, which
2072 indicates to the C program that the snprintf () library function
2075 d_sockatmark (d_sockatmark.U):
2076 This variable conditionally defines the HAS_SOCKATMARK symbol, which
2077 indicates to the C program that the sockatmark() routine is available.
2079 d_sockatmarkproto (d_sockatmarkproto.U):
2080 This variable conditionally defines the HAS_SOCKATMARK_PROTO symbol,
2081 which indicates to the C program that the system provides
2082 a prototype for the sockatmark() function. Otherwise, it is
2083 up to the program to supply one.
2085 d_socket (d_socket.U):
2086 This variable conditionally defines HAS_SOCKET, which indicates
2087 that the BSD socket interface is supported.
2089 d_socklen_t (d_socklen_t.U):
2090 This symbol will be defined if the C compiler supports socklen_t.
2092 d_sockpair (d_socket.U):
2093 This variable conditionally defines the HAS_SOCKETPAIR symbol, which
2094 indicates that the BSD socketpair() is supported.
2096 d_socks5_init (d_socks5_init.U):
2097 This variable conditionally defines the HAS_SOCKS5_INIT symbol, which
2098 indicates to the C program that the socks5_init() routine is available.
2100 d_sprintf_returns_strlen (d_sprintf_len.U):
2101 This variable defines whether sprintf returns the length of the string
2102 (as per the ANSI spec). Some C libraries retain compatibility with
2103 pre-ANSI C and return a pointer to the passed in buffer; for these
2104 this variable will be undef.
2106 d_sqrtl (d_sqrtl.U):
2107 This variable conditionally defines the HAS_SQRTL symbol, which
2108 indicates to the C program that the sqrtl() routine is available.
2110 d_srand48_r (d_srand48_r.U):
2111 This variable conditionally defines the HAS_SRAND48_R symbol,
2112 which indicates to the C program that the srand48_r()
2113 routine is available.
2115 d_srandom_r (d_srandom_r.U):
2116 This variable conditionally defines the HAS_SRANDOM_R symbol,
2117 which indicates to the C program that the srandom_r()
2118 routine is available.
2120 d_sresgproto (d_sresgproto.U):
2121 This variable conditionally defines the HAS_SETRESGID_PROTO symbol,
2122 which indicates to the C program that the system provides
2123 a prototype for the setresgid() function. Otherwise, it is
2124 up to the program to supply one.
2126 d_sresuproto (d_sresuproto.U):
2127 This variable conditionally defines the HAS_SETRESUID_PROTO symbol,
2128 which indicates to the C program that the system provides
2129 a prototype for the setresuid() function. Otherwise, it is
2130 up to the program to supply one.
2132 d_statblks (d_statblks.U):
2133 This variable conditionally defines USE_STAT_BLOCKS
2134 if this system has a stat structure declaring
2135 st_blksize and st_blocks.
2137 d_statfs_f_flags (d_statfs_f_flags.U):
2138 This variable conditionally defines the HAS_STRUCT_STATFS_F_FLAGS
2139 symbol, which indicates to struct statfs from has f_flags member.
2140 This kind of struct statfs is coming from sys/mount.h (BSD),
2141 not from sys/statfs.h (SYSV).
2143 d_statfs_s (d_statfs_s.U):
2144 This variable conditionally defines the HAS_STRUCT_STATFS symbol,
2145 which indicates that the struct statfs is supported.
2147 d_statvfs (d_statvfs.U):
2148 This variable conditionally defines the HAS_STATVFS symbol, which
2149 indicates to the C program that the statvfs() routine is available.
2151 d_stdio_cnt_lval (d_stdstdio.U):
2152 This variable conditionally defines STDIO_CNT_LVALUE if the
2153 FILE_cnt macro can be used as an lvalue.
2155 d_stdio_ptr_lval (d_stdstdio.U):
2156 This variable conditionally defines STDIO_PTR_LVALUE if the
2157 FILE_ptr macro can be used as an lvalue.
2159 d_stdio_ptr_lval_nochange_cnt (d_stdstdio.U):
2160 This symbol is defined if using the FILE_ptr macro as an lvalue
2161 to increase the pointer by n leaves File_cnt(fp) unchanged.
2163 d_stdio_ptr_lval_sets_cnt (d_stdstdio.U):
2164 This symbol is defined if using the FILE_ptr macro as an lvalue
2165 to increase the pointer by n has the side effect of decreasing the
2166 value of File_cnt(fp) by n.
2168 d_stdio_stream_array (stdio_streams.U):
2169 This variable tells whether there is an array holding
2172 d_stdiobase (d_stdstdio.U):
2173 This variable conditionally defines USE_STDIO_BASE if this system
2174 has a FILE structure declaring a usable _base field (or equivalent)
2177 d_stdstdio (d_stdstdio.U):
2178 This variable conditionally defines USE_STDIO_PTR if this system
2179 has a FILE structure declaring usable _ptr and _cnt fields (or
2180 equivalent) in stdio.h.
2182 d_strchr (d_strchr.U):
2183 This variable conditionally defines HAS_STRCHR if strchr() and
2184 strrchr() are available for string searching.
2186 d_strcoll (d_strcoll.U):
2187 This variable conditionally defines HAS_STRCOLL if strcoll() is
2188 available to compare strings using collating information.
2190 d_strctcpy (d_strctcpy.U):
2191 This variable conditionally defines the USE_STRUCT_COPY symbol, which
2192 indicates to the C program that this C compiler knows how to copy
2195 d_strerrm (d_strerror.U):
2196 This variable holds what Strerrr is defined as to translate an error
2197 code condition into an error message string. It could be 'strerror'
2198 or a more complex macro emulating strrror with sys_errlist[], or the
2199 "unknown" string when both strerror and sys_errlist are missing.
2201 d_strerror (d_strerror.U):
2202 This variable conditionally defines HAS_STRERROR if strerror() is
2203 available to translate error numbers to strings.
2205 d_strerror_r (d_strerror_r.U):
2206 This variable conditionally defines the HAS_STRERROR_R symbol,
2207 which indicates to the C program that the strerror_r()
2208 routine is available.
2210 d_strftime (d_strftime.U):
2211 This variable conditionally defines the HAS_STRFTIME symbol, which
2212 indicates to the C program that the strftime() routine is available.
2214 d_strlcat (d_strlcat.U):
2215 This variable conditionally defines the HAS_STRLCAT symbol, which
2216 indicates to the C program that the strlcat () routine is available.
2218 d_strlcpy (d_strlcpy.U):
2219 This variable conditionally defines the HAS_STRLCPY symbol, which
2220 indicates to the C program that the strlcpy () routine is available.
2222 d_strtod (d_strtod.U):
2223 This variable conditionally defines the HAS_STRTOD symbol, which
2224 indicates to the C program that the strtod() routine is available
2225 to provide better numeric string conversion than atof().
2227 d_strtol (d_strtol.U):
2228 This variable conditionally defines the HAS_STRTOL symbol, which
2229 indicates to the C program that the strtol() routine is available
2230 to provide better numeric string conversion than atoi() and friends.
2232 d_strtold (d_strtold.U):
2233 This variable conditionally defines the HAS_STRTOLD symbol, which
2234 indicates to the C program that the strtold() routine is available.
2236 d_strtoll (d_strtoll.U):
2237 This variable conditionally defines the HAS_STRTOLL symbol, which
2238 indicates to the C program that the strtoll() routine is available.
2240 d_strtoq (d_strtoq.U):
2241 This variable conditionally defines the HAS_STRTOQ symbol, which
2242 indicates to the C program that the strtoq() routine is available.
2244 d_strtoul (d_strtoul.U):
2245 This variable conditionally defines the HAS_STRTOUL symbol, which
2246 indicates to the C program that the strtoul() routine is available
2247 to provide conversion of strings to unsigned long.
2249 d_strtoull (d_strtoull.U):
2250 This variable conditionally defines the HAS_STRTOULL symbol, which
2251 indicates to the C program that the strtoull() routine is available.
2253 d_strtouq (d_strtouq.U):
2254 This variable conditionally defines the HAS_STRTOUQ symbol, which
2255 indicates to the C program that the strtouq() routine is available.
2257 d_strxfrm (d_strxfrm.U):
2258 This variable conditionally defines HAS_STRXFRM if strxfrm() is
2259 available to transform strings.
2261 d_suidsafe (d_dosuid.U):
2262 This variable conditionally defines SETUID_SCRIPTS_ARE_SECURE_NOW
2263 if setuid scripts can be secure. This test looks in /dev/fd/.
2265 d_symlink (d_symlink.U):
2266 This variable conditionally defines the HAS_SYMLINK symbol, which
2267 indicates to the C program that the symlink() routine is available
2268 to create symbolic links.
2270 d_syscall (d_syscall.U):
2271 This variable conditionally defines HAS_SYSCALL if syscall() is
2272 available call arbitrary system calls.
2274 d_syscallproto (d_syscallproto.U):
2275 This variable conditionally defines the HAS_SYSCALL_PROTO symbol,
2276 which indicates to the C program that the system provides
2277 a prototype for the syscall() function. Otherwise, it is
2278 up to the program to supply one.
2280 d_sysconf (d_sysconf.U):
2281 This variable conditionally defines the HAS_SYSCONF symbol, which
2282 indicates to the C program that the sysconf() routine is available
2283 to determine system related limits and options.
2285 d_sysernlst (d_strerror.U):
2286 This variable conditionally defines HAS_SYS_ERRNOLIST if sys_errnolist[]
2287 is available to translate error numbers to the symbolic name.
2289 d_syserrlst (d_strerror.U):
2290 This variable conditionally defines HAS_SYS_ERRLIST if sys_errlist[] is
2291 available to translate error numbers to strings.
2293 d_system (d_system.U):
2294 This variable conditionally defines HAS_SYSTEM if system() is
2295 available to issue a shell command.
2297 d_tcgetpgrp (d_tcgtpgrp.U):
2298 This variable conditionally defines the HAS_TCGETPGRP symbol, which
2299 indicates to the C program that the tcgetpgrp() routine is available.
2300 to get foreground process group ID.
2302 d_tcsetpgrp (d_tcstpgrp.U):
2303 This variable conditionally defines the HAS_TCSETPGRP symbol, which
2304 indicates to the C program that the tcsetpgrp() routine is available
2305 to set foreground process group ID.
2307 d_telldir (d_readdir.U):
2308 This variable conditionally defines HAS_TELLDIR if telldir() is
2311 d_telldirproto (d_telldirproto.U):
2312 This variable conditionally defines the HAS_TELLDIR_PROTO symbol,
2313 which indicates to the C program that the system provides
2314 a prototype for the telldir() function. Otherwise, it is
2315 up to the program to supply one.
2318 This variable conditionally defines the HAS_TIME symbol, which indicates
2319 that the time() routine exists. The time() routine is normaly
2320 provided on UNIX systems.
2322 d_timegm (d_timegm.U):
2323 This variable conditionally defines the HAS_TIMEGM symbol, which
2324 indicates to the C program that the timegm () routine is available.
2326 d_times (d_times.U):
2327 This variable conditionally defines the HAS_TIMES symbol, which indicates
2328 that the times() routine exists. The times() routine is normaly
2329 provided on UNIX systems. You may have to include <sys/times.h>.
2331 d_tm_tm_gmtoff (i_time.U):
2332 This variable conditionally defines HAS_TM_TM_GMTOFF, which indicates
2333 indicates to the C program that the struct tm has the tm_gmtoff field.
2335 d_tm_tm_zone (i_time.U):
2336 This variable conditionally defines HAS_TM_TM_ZONE, which indicates
2337 indicates to the C program that the struct tm has the tm_zone field.
2339 d_tmpnam_r (d_tmpnam_r.U):
2340 This variable conditionally defines the HAS_TMPNAM_R symbol,
2341 which indicates to the C program that the tmpnam_r()
2342 routine is available.
2344 d_truncate (d_truncate.U):
2345 This variable conditionally defines HAS_TRUNCATE if truncate() is
2346 available to truncate files.
2348 d_ttyname_r (d_ttyname_r.U):
2349 This variable conditionally defines the HAS_TTYNAME_R symbol,
2350 which indicates to the C program that the ttyname_r()
2351 routine is available.
2353 d_tzname (d_tzname.U):
2354 This variable conditionally defines HAS_TZNAME if tzname[] is
2355 available to access timezone names.
2357 d_u32align (d_u32align.U):
2358 This variable tells whether you must access character data
2359 through U32-aligned pointers.
2361 d_ualarm (d_ualarm.U):
2362 This variable conditionally defines the HAS_UALARM symbol, which
2363 indicates to the C program that the ualarm() routine is available.
2365 d_umask (d_umask.U):
2366 This variable conditionally defines the HAS_UMASK symbol, which
2367 indicates to the C program that the umask() routine is available.
2368 to set and get the value of the file creation mask.
2370 d_uname (d_gethname.U):
2371 This variable conditionally defines the HAS_UNAME symbol, which
2372 indicates to the C program that the uname() routine may be
2373 used to derive the host name.
2375 d_union_semun (d_union_semun.U):
2376 This variable conditionally defines HAS_UNION_SEMUN if the
2377 union semun is defined by including <sys/sem.h>.
2379 d_unordered (d_unordered.U):
2380 This variable conditionally defines the HAS_UNORDERED symbol, which
2381 indicates to the C program that the unordered() routine is available.
2383 d_unsetenv (d_unsetenv.U):
2384 This variable conditionally defines the HAS_UNSETENV symbol, which
2385 indicates to the C program that the unsetenv () routine is available.
2387 d_usleep (d_usleep.U):
2388 This variable conditionally defines HAS_USLEEP if usleep() is
2389 available to do high granularity sleeps.
2391 d_usleepproto (d_usleepproto.U):
2392 This variable conditionally defines the HAS_USLEEP_PROTO symbol,
2393 which indicates to the C program that the system provides
2394 a prototype for the usleep() function. Otherwise, it is
2395 up to the program to supply one.
2397 d_ustat (d_ustat.U):
2398 This variable conditionally defines HAS_USTAT if ustat() is
2399 available to query file system statistics by dev_t.
2401 d_vendorarch (vendorarch.U):
2402 This variable conditionally defined PERL_VENDORARCH.
2404 d_vendorbin (vendorbin.U):
2405 This variable conditionally defines PERL_VENDORBIN.
2407 d_vendorlib (vendorlib.U):
2408 This variable conditionally defines PERL_VENDORLIB.
2410 d_vendorscript (vendorscript.U):
2411 This variable conditionally defines PERL_VENDORSCRIPT.
2413 d_vfork (d_vfork.U):
2414 This variable conditionally defines the HAS_VFORK symbol, which
2415 indicates the vfork() routine is available.
2417 d_void_closedir (d_closedir.U):
2418 This variable conditionally defines VOID_CLOSEDIR if closedir()
2419 does not return a value.
2421 d_voidsig (d_voidsig.U):
2422 This variable conditionally defines VOIDSIG if this system
2423 declares "void (*signal(...))()" in signal.h. The old way was to
2424 declare it as "int (*signal(...))()".
2426 d_voidtty (i_sysioctl.U):
2427 This variable conditionally defines USE_IOCNOTTY to indicate that the
2428 ioctl() call with TIOCNOTTY should be used to void tty association.
2429 Otherwise (on USG probably), it is enough to close the standard file
2430 decriptors and do a setpgrp().
2432 d_volatile (d_volatile.U):
2433 This variable conditionally defines the HASVOLATILE symbol, which
2434 indicates to the C program that this C compiler knows about the
2435 volatile declaration.
2437 d_vprintf (d_vprintf.U):
2438 This variable conditionally defines the HAS_VPRINTF symbol, which
2439 indicates to the C program that the vprintf() routine is available
2440 to printf with a pointer to an argument list.
2442 d_vsnprintf (d_snprintf.U):
2443 This variable conditionally defines the HAS_VSNPRINTF symbol, which
2444 indicates to the C program that the vsnprintf () library function
2447 d_wait4 (d_wait4.U):
2448 This variable conditionally defines the HAS_WAIT4 symbol, which
2449 indicates the wait4() routine is available.
2451 d_waitpid (d_waitpid.U):
2452 This variable conditionally defines HAS_WAITPID if waitpid() is
2453 available to wait for child process.
2455 d_wcstombs (d_wcstombs.U):
2456 This variable conditionally defines the HAS_WCSTOMBS symbol, which
2457 indicates to the C program that the wcstombs() routine is available
2458 to convert wide character strings to multibyte strings.
2460 d_wctomb (d_wctomb.U):
2461 This variable conditionally defines the HAS_WCTOMB symbol, which
2462 indicates to the C program that the wctomb() routine is available
2463 to convert a wide character to a multibyte.
2465 d_writev (d_writev.U):
2466 This variable conditionally defines the HAS_WRITEV symbol, which
2467 indicates to the C program that the writev() routine is available.
2470 This variable conditionally defines the symbol XENIX, which alerts
2471 the C program that it runs under Xenix.
2474 This variable is used internally by Configure to determine the
2475 full pathname (if any) of the date program. After Configure runs,
2476 the value is reset to a plain "date" and is not useful.
2478 db_hashtype (i_db.U):
2479 This variable contains the type of the hash structure element
2480 in the <db.h> header file. In older versions of DB, it was
2481 int, while in newer ones it is u_int32_t.
2483 db_prefixtype (i_db.U):
2484 This variable contains the type of the prefix structure element
2485 in the <db.h> header file. In older versions of DB, it was
2486 int, while in newer ones it is size_t.
2488 db_version_major (i_db.U):
2489 This variable contains the major version number of
2490 Berkeley DB found in the <db.h> header file.
2492 db_version_minor (i_db.U):
2493 This variable contains the minor version number of
2494 Berkeley DB found in the <db.h> header file.
2495 For DB version 1 this is always 0.
2497 db_version_patch (i_db.U):
2498 This variable contains the patch version number of
2499 Berkeley DB found in the <db.h> header file.
2500 For DB version 1 this is always 0.
2502 defvoidused (voidflags.U):
2503 This variable contains the default value of the VOIDUSED symbol (15).
2505 direntrytype (i_dirent.U):
2506 This symbol is set to 'struct direct' or 'struct dirent' depending on
2507 whether dirent is available or not. You should use this pseudo type to
2508 portably declare your directory entries.
2511 This variable contains the extension that is to be used for the
2512 dynamically loaded modules that perl generaties.
2515 This variable contains the name of the dynamic loading file that
2516 will be used with the package.
2518 doublesize (doublesize.U):
2519 This variable contains the value of the DOUBLESIZE symbol, which
2520 indicates to the C program how many bytes there are in a double.
2522 drand01 (randfunc.U):
2523 Indicates the macro to be used to generate normalized
2524 random numbers. Uses randfunc, often divided by
2525 (double) (((unsigned long) 1 << randbits)) in order to
2526 normalize the result.
2527 In C programs, the macro 'Drand01' is mapped to drand01.
2529 drand48_r_proto (d_drand48_r.U):
2530 This variable encodes the prototype of drand48_r.
2531 It is zero if d_drand48_r is undef, and one of the
2532 REENTRANT_PROTO_T_ABC macros of reentr.h if d_drand48_r
2535 dtrace (usedtrace.U):
2536 This variable holds the location of the dtrace executable.
2538 dynamic_ext (Extensions.U):
2539 This variable holds a list of XS extension files we want to
2540 link dynamically into the package. It is used by Makefile.
2542 eagain (nblock_io.U):
2543 This variable bears the symbolic errno code set by read() when no
2544 data is present on the file and non-blocking I/O was enabled (otherwise,
2545 read() blocks naturally).
2548 This variable conditionally defines EBCDIC if this
2549 system uses EBCDIC encoding. Among other things, this
2550 means that the character ranges are not contiguous.
2554 This variable is used internally by Configure to determine the
2555 full pathname (if any) of the echo program. After Configure runs,
2556 the value is reset to a plain "echo" and is not useful.
2559 This variable is used internally by Configure to determine the
2560 full pathname (if any) of the egrep program. After Configure runs,
2561 the value is reset to a plain "egrep" and is not useful.
2564 This variable is defined but not used by Configure.
2565 The value is the empty string and is not useful.
2567 endgrent_r_proto (d_endgrent_r.U):
2568 This variable encodes the prototype of endgrent_r.
2569 It is zero if d_endgrent_r is undef, and one of the
2570 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endgrent_r
2573 endhostent_r_proto (d_endhostent_r.U):
2574 This variable encodes the prototype of endhostent_r.
2575 It is zero if d_endhostent_r is undef, and one of the
2576 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endhostent_r
2579 endnetent_r_proto (d_endnetent_r.U):
2580 This variable encodes the prototype of endnetent_r.
2581 It is zero if d_endnetent_r is undef, and one of the
2582 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endnetent_r
2585 endprotoent_r_proto (d_endprotoent_r.U):
2586 This variable encodes the prototype of endprotoent_r.
2587 It is zero if d_endprotoent_r is undef, and one of the
2588 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endprotoent_r
2591 endpwent_r_proto (d_endpwent_r.U):
2592 This variable encodes the prototype of endpwent_r.
2593 It is zero if d_endpwent_r is undef, and one of the
2594 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endpwent_r
2597 endservent_r_proto (d_endservent_r.U):
2598 This variable encodes the prototype of endservent_r.
2599 It is zero if d_endservent_r is undef, and one of the
2600 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endservent_r
2604 When running under Eunice this variable contains a command which will
2605 convert a shell script to the proper form of text file for it to be
2606 executable by the shell. On other systems it is a no-op.
2609 This is an old synonym for _exe.
2612 This variable is used internally by Configure to determine the
2613 full pathname (if any) of the expr program. After Configure runs,
2614 the value is reset to a plain "expr" and is not useful.
2616 extensions (Extensions.U):
2617 This variable holds a list of all extension files (both XS and
2618 non-xs linked into the package. It is propagated to Config.pm
2619 and is typically used to test whether a particular extesion
2623 ANSI C requires 'extern' where C++ requires 'extern "C"'. This
2624 variable can be used in Configure to do the right thing.
2627 This variable holds a list of extra modules to install.
2629 fflushall (fflushall.U):
2630 This symbol, if defined, tells that to flush
2631 all pending stdio output one must loop through all
2632 the stdio file handles stored in an array and fflush them.
2633 Note that if fflushNULL is defined, fflushall will not
2634 even be probed for and will be left undefined.
2636 fflushNULL (fflushall.U):
2637 This symbol, if defined, tells that fflush(NULL) does flush
2638 all pending stdio output.
2641 This variable is defined but not used by Configure.
2642 The value is the empty string and is not useful.
2644 firstmakefile (Unix.U):
2645 This variable defines the first file searched by make. On unix,
2646 it is makefile (then Makefile). On case-insensitive systems,
2647 it might be something else. This is only used to deal with
2648 convoluted make depend tricks.
2651 This variable is defined but not used by Configure.
2652 The value is the empty string and is not useful.
2654 fpossize (fpossize.U):
2655 This variable contains the size of a fpostype in bytes.
2657 fpostype (fpostype.U):
2658 This variable defines Fpos_t to be something like fpos_t, long,
2659 uint, or whatever type is used to declare file positions in libc.
2661 freetype (mallocsrc.U):
2662 This variable contains the return type of free(). It is usually
2663 void, but occasionally int.
2666 This variable contains the command used by Configure
2667 to copy files from the target host. Useful and available
2668 only during Perl build.
2669 The string ':' if not cross-compiling.
2672 This variable contains the full pathname to 'ar', whether or
2673 not the user has specified 'portability'. This is only used
2677 This variable contains the full pathname to 'csh', whether or
2678 not the user has specified 'portability'. This is only used
2679 in the compiled C program, and we assume that all systems which
2680 can share this executable will have the same full pathname to
2683 full_sed (Loc_sed.U):
2684 This variable contains the full pathname to 'sed', whether or
2685 not the user has specified 'portability'. This is only used
2686 in the compiled C program, and we assume that all systems which
2687 can share this executable will have the same full pathname to
2690 gccansipedantic (gccvers.U):
2691 If GNU cc (gcc) is used, this variable will enable (if set) the
2692 -ansi and -pedantic ccflags for building core files (through
2693 cflags script). (See Porting/pumpkin.pod for full description).
2695 gccosandvers (gccvers.U):
2696 If GNU cc (gcc) is used, this variable holds the operating system
2697 and version used to compile gcc. It is set to '' if not gcc,
2698 or if nothing useful can be parsed as the os version.
2700 gccversion (gccvers.U):
2701 If GNU cc (gcc) is used, this variable holds '1' or '2' to
2702 indicate whether the compiler is version 1 or 2. This is used in
2703 setting some of the default cflags. It is set to '' if not gcc.
2705 getgrent_r_proto (d_getgrent_r.U):
2706 This variable encodes the prototype of getgrent_r.
2707 It is zero if d_getgrent_r is undef, and one of the
2708 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrent_r
2711 getgrgid_r_proto (d_getgrgid_r.U):
2712 This variable encodes the prototype of getgrgid_r.
2713 It is zero if d_getgrgid_r is undef, and one of the
2714 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrgid_r
2717 getgrnam_r_proto (d_getgrnam_r.U):
2718 This variable encodes the prototype of getgrnam_r.
2719 It is zero if d_getgrnam_r is undef, and one of the
2720 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrnam_r
2723 gethostbyaddr_r_proto (d_gethostbyaddr_r.U):
2724 This variable encodes the prototype of gethostbyaddr_r.
2725 It is zero if d_gethostbyaddr_r is undef, and one of the
2726 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyaddr_r
2729 gethostbyname_r_proto (d_gethostbyname_r.U):
2730 This variable encodes the prototype of gethostbyname_r.
2731 It is zero if d_gethostbyname_r is undef, and one of the
2732 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyname_r
2735 gethostent_r_proto (d_gethostent_r.U):
2736 This variable encodes the prototype of gethostent_r.
2737 It is zero if d_gethostent_r is undef, and one of the
2738 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostent_r
2741 getlogin_r_proto (d_getlogin_r.U):
2742 This variable encodes the prototype of getlogin_r.
2743 It is zero if d_getlogin_r is undef, and one of the
2744 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getlogin_r
2747 getnetbyaddr_r_proto (d_getnetbyaddr_r.U):
2748 This variable encodes the prototype of getnetbyaddr_r.
2749 It is zero if d_getnetbyaddr_r is undef, and one of the
2750 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyaddr_r
2753 getnetbyname_r_proto (d_getnetbyname_r.U):
2754 This variable encodes the prototype of getnetbyname_r.
2755 It is zero if d_getnetbyname_r is undef, and one of the
2756 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyname_r
2759 getnetent_r_proto (d_getnetent_r.U):
2760 This variable encodes the prototype of getnetent_r.
2761 It is zero if d_getnetent_r is undef, and one of the
2762 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetent_r
2765 getprotobyname_r_proto (d_getprotobyname_r.U):
2766 This variable encodes the prototype of getprotobyname_r.
2767 It is zero if d_getprotobyname_r is undef, and one of the
2768 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobyname_r
2771 getprotobynumber_r_proto (d_getprotobynumber_r.U):
2772 This variable encodes the prototype of getprotobynumber_r.
2773 It is zero if d_getprotobynumber_r is undef, and one of the
2774 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobynumber_r
2777 getprotoent_r_proto (d_getprotoent_r.U):
2778 This variable encodes the prototype of getprotoent_r.
2779 It is zero if d_getprotoent_r is undef, and one of the
2780 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotoent_r
2783 getpwent_r_proto (d_getpwent_r.U):
2784 This variable encodes the prototype of getpwent_r.
2785 It is zero if d_getpwent_r is undef, and one of the
2786 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwent_r
2789 getpwnam_r_proto (d_getpwnam_r.U):
2790 This variable encodes the prototype of getpwnam_r.
2791 It is zero if d_getpwnam_r is undef, and one of the
2792 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwnam_r
2795 getpwuid_r_proto (d_getpwuid_r.U):
2796 This variable encodes the prototype of getpwuid_r.
2797 It is zero if d_getpwuid_r is undef, and one of the
2798 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwuid_r
2801 getservbyname_r_proto (d_getservbyname_r.U):
2802 This variable encodes the prototype of getservbyname_r.
2803 It is zero if d_getservbyname_r is undef, and one of the
2804 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyname_r
2807 getservbyport_r_proto (d_getservbyport_r.U):
2808 This variable encodes the prototype of getservbyport_r.
2809 It is zero if d_getservbyport_r is undef, and one of the
2810 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyport_r
2813 getservent_r_proto (d_getservent_r.U):
2814 This variable encodes the prototype of getservent_r.
2815 It is zero if d_getservent_r is undef, and one of the
2816 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservent_r
2819 getspnam_r_proto (d_getspnam_r.U):
2820 This variable encodes the prototype of getspnam_r.
2821 It is zero if d_getspnam_r is undef, and one of the
2822 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getspnam_r
2826 This variable contains the format string used for printing a Gid_t.
2828 gidsign (gidsign.U):
2829 This variable contains the signedness of a gidtype.
2830 1 for unsigned, -1 for signed.
2832 gidsize (gidsize.U):
2833 This variable contains the size of a gidtype in bytes.
2835 gidtype (gidtype.U):
2836 This variable defines Gid_t to be something like gid_t, int,
2837 ushort, or whatever type is used to declare the return type
2838 of getgid(). Typically, it is the type of group ids in the kernel.
2841 This variable holds the general path (space-separated) used to
2842 find libraries. It may contain directories that do not exist on
2843 this platform, libpth is the cleaned-up version.
2846 This variable is used internally by Configure to determine the
2847 full pathname (if any) of the gmake program. After Configure runs,
2848 the value is reset to a plain "gmake" and is not useful.
2850 gmtime_r_proto (d_gmtime_r.U):
2851 This variable encodes the prototype of gmtime_r.
2852 It is zero if d_gmtime_r is undef, and one of the
2853 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gmtime_r
2856 gnulibc_version (d_gnulibc.U):
2857 This variable contains the version number of the GNU C library.
2858 It is usually something like '2.2.5'. It is a plain '' if this
2859 is not the GNU C library, or if the version is unknown.
2862 This variable is used internally by Configure to determine the
2863 full pathname (if any) of the grep program. After Configure runs,
2864 the value is reset to a plain "grep" and is not useful.
2867 This variable contains a command that produces the text of the
2868 /etc/group file. This is normally "cat /etc/group", but can be
2869 "ypcat group" when NIS is used.
2870 On some systems, such as os390, there may be no equivalent
2871 command, in which case this variable is unset.
2873 groupstype (groupstype.U):
2874 This variable defines Groups_t to be something like gid_t, int,
2875 ushort, or whatever type is used for the second argument to
2876 getgroups() and setgroups(). Usually, this is the same as
2877 gidtype (gid_t), but sometimes it isn't.
2880 This variable is used internally by Configure to determine the
2881 full pathname (if any) of the gzip program. After Configure runs,
2882 the value is reset to a plain "gzip" and is not useful.
2884 h_fcntl (h_fcntl.U):
2885 This is variable gets set in various places to tell i_fcntl that
2886 <fcntl.h> should be included.
2888 h_sysfile (h_sysfile.U):
2889 This is variable gets set in various places to tell i_sys_file that
2890 <sys/file.h> should be included.
2893 Gives the type of hints used for previous answers. May be one of
2894 "default", "recommended" or "previous".
2897 This variable contains a command that produces the text of the
2898 /etc/hosts file. This is normally "cat /etc/hosts", but can be
2899 "ypcat hosts" when NIS is used.
2900 On some systems, such as os390, there may be no equivalent
2901 command, in which case this variable is unset.
2903 html1dir (html1dir.U):
2904 This variable contains the name of the directory in which html
2905 source pages are to be put. This directory is for pages
2906 that describe whole programs, not libraries or modules. It
2907 is intended to correspond roughly to section 1 of the Unix
2910 html1direxp (html1dir.U):
2911 This variable is the same as the html1dir variable, but is filename
2912 expanded at configuration time, for convenient use in makefiles.
2914 html3dir (html3dir.U):
2915 This variable contains the name of the directory in which html
2916 source pages are to be put. This directory is for pages
2917 that describe libraries or modules. It is intended to
2918 correspond roughly to section 3 of the Unix manuals.
2920 html3direxp (html3dir.U):
2921 This variable is the same as the html3dir variable, but is filename
2922 expanded at configuration time, for convenient use in makefiles.
2925 This variable is the size of an I16 in bytes.
2928 This variable contains the C type used for Perl's I16.
2931 This variable is the size of an I32 in bytes.
2934 This variable contains the C type used for Perl's I32.
2937 This variable is the size of an I64 in bytes.
2940 This variable contains the C type used for Perl's I64.
2943 This variable is the size of an I8 in bytes.
2946 This variable contains the C type used for Perl's I8.
2948 i_arpainet (i_arpainet.U):
2949 This variable conditionally defines the I_ARPA_INET symbol,
2950 and indicates whether a C program should include <arpa/inet.h>.
2952 i_assert (i_assert.U):
2953 This variable conditionally defines the I_ASSERT symbol, which
2954 indicates to the C program that <assert.h> exists and could be
2957 i_bsdioctl (i_sysioctl.U):
2958 This variable conditionally defines the I_SYS_BSDIOCTL symbol, which
2959 indicates to the C program that <sys/bsdioctl.h> exists and should
2962 i_crypt (i_crypt.U):
2963 This variable conditionally defines the I_CRYPT symbol, and indicates
2964 whether a C program should include <crypt.h>.
2967 This variable conditionally defines the I_DB symbol, and indicates
2968 whether a C program may include Berkeley's DB include file <db.h>.
2971 This variable conditionally defines the I_DBM symbol, which
2972 indicates to the C program that <dbm.h> exists and should
2975 i_dirent (i_dirent.U):
2976 This variable conditionally defines I_DIRENT, which indicates
2977 to the C program that it should include <dirent.h>.
2980 This variable conditionally defines the I_DLD symbol, which
2981 indicates to the C program that <dld.h> (GNU dynamic loading)
2982 exists and should be included.
2984 i_dlfcn (i_dlfcn.U):
2985 This variable conditionally defines the I_DLFCN symbol, which
2986 indicates to the C program that <dlfcn.h> exists and should
2989 i_fcntl (i_fcntl.U):
2990 This variable controls the value of I_FCNTL (which tells
2991 the C program to include <fcntl.h>).
2993 i_float (i_float.U):
2994 This variable conditionally defines the I_FLOAT symbol, and indicates
2995 whether a C program may include <float.h> to get symbols like DBL_MAX
2996 or DBL_MIN, i.e. machine dependent floating point values.
2999 This variable conditionally defines the I_FP symbol, and indicates
3000 whether a C program should include <fp.h>.
3002 i_fp_class (i_fp_class.U):
3003 This variable conditionally defines the I_FP_CLASS symbol, and indicates
3004 whether a C program should include <fp_class.h>.
3007 This variable conditionally defines the I_GDBM symbol, which
3008 indicates to the C program that <gdbm.h> exists and should
3011 i_gdbm_ndbm (i_ndbm.U):
3012 This variable conditionally defines the I_GDBM_NDBM symbol, which
3013 indicates to the C program that <gdbm-ndbm.h> exists and should
3014 be included. This is the location of the ndbm.h compatibility file
3017 i_gdbmndbm (i_ndbm.U):
3018 This variable conditionally defines the I_GDBMNDBM symbol, which
3019 indicates to the C program that <gdbm/ndbm.h> exists and should
3020 be included. This was the location of the ndbm.h compatibility file
3024 This variable conditionally defines the I_GRP symbol, and indicates
3025 whether a C program should include <grp.h>.
3027 i_ieeefp (i_ieeefp.U):
3028 This variable conditionally defines the I_IEEEFP symbol, and indicates
3029 whether a C program should include <ieeefp.h>.
3031 i_inttypes (i_inttypes.U):
3032 This variable conditionally defines the I_INTTYPES symbol,
3033 and indicates whether a C program should include <inttypes.h>.
3035 i_langinfo (i_langinfo.U):
3036 This variable conditionally defines the I_LANGINFO symbol,
3037 and indicates whether a C program should include <langinfo.h>.
3039 i_libutil (i_libutil.U):
3040 This variable conditionally defines the I_LIBUTIL symbol, and indicates
3041 whether a C program should include <libutil.h>.
3043 i_limits (i_limits.U):
3044 This variable conditionally defines the I_LIMITS symbol, and indicates
3045 whether a C program may include <limits.h> to get symbols like WORD_BIT
3048 i_locale (i_locale.U):
3049 This variable conditionally defines the I_LOCALE symbol,
3050 and indicates whether a C program should include <locale.h>.
3052 i_machcthr (i_machcthr.U):
3053 This variable conditionally defines the I_MACH_CTHREADS symbol,
3054 and indicates whether a C program should include <mach/cthreads.h>.
3056 i_malloc (i_malloc.U):
3057 This variable conditionally defines the I_MALLOC symbol, and indicates
3058 whether a C program should include <malloc.h>.
3060 i_mallocmalloc (i_mallocmalloc.U):
3061 This variable conditionally defines the I_MALLOCMALLOC symbol,
3062 and indicates whether a C program should include <malloc/malloc.h>.
3065 This variable conditionally defines the I_MATH symbol, and indicates
3066 whether a C program may include <math.h>.
3068 i_memory (i_memory.U):
3069 This variable conditionally defines the I_MEMORY symbol, and indicates
3070 whether a C program should include <memory.h>.
3072 i_mntent (i_mntent.U):
3073 This variable conditionally defines the I_MNTENT symbol, and indicates
3074 whether a C program should include <mntent.h>.
3077 This variable conditionally defines the I_NDBM symbol, which
3078 indicates to the C program that <ndbm.h> exists and should
3081 i_netdb (i_netdb.U):
3082 This variable conditionally defines the I_NETDB symbol, and indicates
3083 whether a C program should include <netdb.h>.
3085 i_neterrno (i_neterrno.U):
3086 This variable conditionally defines the I_NET_ERRNO symbol, which
3087 indicates to the C program that <net/errno.h> exists and should
3090 i_netinettcp (i_netinettcp.U):
3091 This variable conditionally defines the I_NETINET_TCP symbol,
3092 and indicates whether a C program should include <netinet/tcp.h>.
3095 This variable conditionally defines I_NETINET_IN, which indicates
3096 to the C program that it should include <netinet/in.h>. Otherwise,
3097 you may try <sys/in.h>.
3100 This variable conditionally defines the I_POLL symbol, and indicates
3101 whether a C program should include <poll.h>.
3104 This variable conditionally defines the I_PROT symbol, and indicates
3105 whether a C program should include <prot.h>.
3107 i_pthread (i_pthread.U):
3108 This variable conditionally defines the I_PTHREAD symbol,
3109 and indicates whether a C program should include <pthread.h>.
3112 This variable conditionally defines I_PWD, which indicates
3113 to the C program that it should include <pwd.h>.
3115 i_rpcsvcdbm (i_dbm.U):
3116 This variable conditionally defines the I_RPCSVC_DBM symbol, which
3117 indicates to the C program that <rpcsvc/dbm.h> exists and should
3118 be included. Some System V systems might need this instead of <dbm.h>.
3121 This variable conditionally defines the I_SFIO symbol,
3122 and indicates whether a C program should include <sfio.h>.
3124 i_sgtty (i_termio.U):
3125 This variable conditionally defines the I_SGTTY symbol, which
3126 indicates to the C program that it should include <sgtty.h> rather
3129 i_shadow (i_shadow.U):
3130 This variable conditionally defines the I_SHADOW symbol, and indicates
3131 whether a C program should include <shadow.h>.
3133 i_socks (i_socks.U):
3134 This variable conditionally defines the I_SOCKS symbol, and indicates
3135 whether a C program should include <socks.h>.
3137 i_stdarg (i_varhdr.U):
3138 This variable conditionally defines the I_STDARG symbol, which
3139 indicates to the C program that <stdarg.h> exists and should
3142 i_stddef (i_stddef.U):
3143 This variable conditionally defines the I_STDDEF symbol, which
3144 indicates to the C program that <stddef.h> exists and should
3147 i_stdlib (i_stdlib.U):
3148 This variable conditionally defines the I_STDLIB symbol, which
3149 indicates to the C program that <stdlib.h> exists and should
3152 i_string (i_string.U):
3153 This variable conditionally defines the I_STRING symbol, which
3154 indicates that <string.h> should be included rather than <strings.h>.
3156 i_sunmath (i_sunmath.U):
3157 This variable conditionally defines the I_SUNMATH symbol, and indicates
3158 whether a C program should include <sunmath.h>.
3160 i_sysaccess (i_sysaccess.U):
3161 This variable conditionally defines the I_SYS_ACCESS symbol,
3162 and indicates whether a C program should include <sys/access.h>.
3164 i_sysdir (i_sysdir.U):
3165 This variable conditionally defines the I_SYS_DIR symbol, and indicates
3166 whether a C program should include <sys/dir.h>.
3168 i_sysfile (i_sysfile.U):
3169 This variable conditionally defines the I_SYS_FILE symbol, and indicates
3170 whether a C program should include <sys/file.h> to get R_OK and friends.
3172 i_sysfilio (i_sysioctl.U):
3173 This variable conditionally defines the I_SYS_FILIO symbol, which
3174 indicates to the C program that <sys/filio.h> exists and should
3175 be included in preference to <sys/ioctl.h>.
3178 This variable conditionally defines I_SYS_IN, which indicates
3179 to the C program that it should include <sys/in.h> instead of
3182 i_sysioctl (i_sysioctl.U):
3183 This variable conditionally defines the I_SYS_IOCTL symbol, which
3184 indicates to the C program that <sys/ioctl.h> exists and should
3187 i_syslog (i_syslog.U):
3188 This variable conditionally defines the I_SYSLOG symbol,
3189 and indicates whether a C program should include <syslog.h>.
3191 i_sysmman (i_sysmman.U):
3192 This variable conditionally defines the I_SYS_MMAN symbol, and
3193 indicates whether a C program should include <sys/mman.h>.
3195 i_sysmode (i_sysmode.U):
3196 This variable conditionally defines the I_SYSMODE symbol,
3197 and indicates whether a C program should include <sys/mode.h>.
3199 i_sysmount (i_sysmount.U):
3200 This variable conditionally defines the I_SYSMOUNT symbol,
3201 and indicates whether a C program should include <sys/mount.h>.
3203 i_sysndir (i_sysndir.U):
3204 This variable conditionally defines the I_SYS_NDIR symbol, and indicates
3205 whether a C program should include <sys/ndir.h>.
3207 i_sysparam (i_sysparam.U):
3208 This variable conditionally defines the I_SYS_PARAM symbol, and indicates
3209 whether a C program should include <sys/param.h>.
3211 i_syspoll (i_syspoll.U):
3212 This variable conditionally defines the I_SYS_POLL symbol, which
3213 indicates to the C program that it should include <sys/poll.h>.
3215 i_sysresrc (i_sysresrc.U):
3216 This variable conditionally defines the I_SYS_RESOURCE symbol,
3217 and indicates whether a C program should include <sys/resource.h>.
3219 i_syssecrt (i_syssecrt.U):
3220 This variable conditionally defines the I_SYS_SECURITY symbol,
3221 and indicates whether a C program should include <sys/security.h>.
3223 i_sysselct (i_sysselct.U):
3224 This variable conditionally defines I_SYS_SELECT, which indicates
3225 to the C program that it should include <sys/select.h> in order to
3226 get the definition of struct timeval.
3228 i_syssockio (i_sysioctl.U):
3229 This variable conditionally defines I_SYS_SOCKIO to indicate to the
3230 C program that socket ioctl codes may be found in <sys/sockio.h>
3231 instead of <sys/ioctl.h>.
3233 i_sysstat (i_sysstat.U):
3234 This variable conditionally defines the I_SYS_STAT symbol,
3235 and indicates whether a C program should include <sys/stat.h>.
3237 i_sysstatfs (i_sysstatfs.U):
3238 This variable conditionally defines the I_SYSSTATFS symbol,
3239 and indicates whether a C program should include <sys/statfs.h>.
3241 i_sysstatvfs (i_sysstatvfs.U):
3242 This variable conditionally defines the I_SYSSTATVFS symbol,
3243 and indicates whether a C program should include <sys/statvfs.h>.
3245 i_systime (i_time.U):
3246 This variable conditionally defines I_SYS_TIME, which indicates
3247 to the C program that it should include <sys/time.h>.
3249 i_systimek (i_time.U):
3250 This variable conditionally defines I_SYS_TIME_KERNEL, which
3251 indicates to the C program that it should include <sys/time.h>
3252 with KERNEL defined.
3254 i_systimes (i_systimes.U):
3255 This variable conditionally defines the I_SYS_TIMES symbol, and indicates
3256 whether a C program should include <sys/times.h>.
3258 i_systypes (i_systypes.U):
3259 This variable conditionally defines the I_SYS_TYPES symbol,
3260 and indicates whether a C program should include <sys/types.h>.
3262 i_sysuio (i_sysuio.U):
3263 This variable conditionally defines the I_SYSUIO symbol, and indicates
3264 whether a C program should include <sys/uio.h>.
3266 i_sysun (i_sysun.U):
3267 This variable conditionally defines I_SYS_UN, which indicates
3268 to the C program that it should include <sys/un.h> to get UNIX
3269 domain socket definitions.
3271 i_sysutsname (i_sysutsname.U):
3272 This variable conditionally defines the I_SYSUTSNAME symbol,
3273 and indicates whether a C program should include <sys/utsname.h>.
3275 i_sysvfs (i_sysvfs.U):
3276 This variable conditionally defines the I_SYSVFS symbol,
3277 and indicates whether a C program should include <sys/vfs.h>.
3279 i_syswait (i_syswait.U):
3280 This variable conditionally defines I_SYS_WAIT, which indicates
3281 to the C program that it should include <sys/wait.h>.
3283 i_termio (i_termio.U):
3284 This variable conditionally defines the I_TERMIO symbol, which
3285 indicates to the C program that it should include <termio.h> rather
3288 i_termios (i_termio.U):
3289 This variable conditionally defines the I_TERMIOS symbol, which
3290 indicates to the C program that the POSIX <termios.h> file is
3294 This variable conditionally defines I_TIME, which indicates
3295 to the C program that it should include <time.h>.
3297 i_unistd (i_unistd.U):
3298 This variable conditionally defines the I_UNISTD symbol, and indicates
3299 whether a C program should include <unistd.h>.
3301 i_ustat (i_ustat.U):
3302 This variable conditionally defines the I_USTAT symbol, and indicates
3303 whether a C program should include <ustat.h>.
3305 i_utime (i_utime.U):
3306 This variable conditionally defines the I_UTIME symbol, and indicates
3307 whether a C program should include <utime.h>.
3309 i_values (i_values.U):
3310 This variable conditionally defines the I_VALUES symbol, and indicates
3311 whether a C program may include <values.h> to get symbols like MAXLONG
3314 i_varargs (i_varhdr.U):
3315 This variable conditionally defines I_VARARGS, which indicates
3316 to the C program that it should include <varargs.h>.
3318 i_varhdr (i_varhdr.U):
3319 Contains the name of the header to be included to get va_dcl definition.
3320 Typically one of varargs.h or stdarg.h.
3322 i_vfork (i_vfork.U):
3323 This variable conditionally defines the I_VFORK symbol, and indicates
3324 whether a C program should include vfork.h.
3326 ignore_versioned_solibs (libs.U):
3327 This variable should be non-empty if non-versioned shared
3328 libraries (libfoo.so.x.y) are to be ignored (because they
3329 cannot be linked against).
3331 inc_version_list (inc_version_list.U):
3332 This variable specifies the list of subdirectories in over
3333 which perl.c:incpush() and lib/lib.pm will automatically
3334 search when adding directories to @INC. The elements in
3335 the list are separated by spaces. This is only useful
3336 if you have a perl library directory tree structured like the
3337 default one. See INSTALL for how this works. The versioned
3338 site_perl directory was introduced in 5.005, so that is the
3339 lowest possible value.
3341 This list includes architecture-dependent directories back to
3342 version $api_versionstring (e.g. 5.5.640) and
3343 architecture-independent directories all the way back to
3346 inc_version_list_init (inc_version_list.U):
3347 This variable holds the same list as inc_version_list, but
3348 each item is enclosed in double quotes and separated by commas,
3349 suitable for use in the PERL_INC_VERSION_LIST initialization.
3352 This variable must preceed the normal include path to get hte
3353 right one, as in "$incpath/usr/include" or "$incpath/usr/lib".
3354 Value can be "" or "/bsd43" on mips.
3357 This variable is defined but not used by Configure.
3358 The value is the empty string and is not useful.
3360 initialinstalllocation (bin.U):
3361 When userelocatableinc is true, this variable holds the location
3362 that make install should copy the perl binary to, with all the
3363 run-time relocatable paths calculated from this at install time.
3364 When used, it is initialised to the original value of binexp, and
3365 then binexp is set to '.../', as the other binaries are found
3366 relative to the perl binary.
3368 installarchlib (archlib.U):
3369 This variable is really the same as archlibexp but may differ on
3370 those systems using AFS. For extra portability, only this variable
3371 should be used in makefiles.
3374 This variable is the same as binexp unless AFS is running in which case
3375 the user is explicitely prompted for it. This variable should always
3376 be used in your makefiles for maximum portability.
3378 installhtml1dir (html1dir.U):
3379 This variable is really the same as html1direxp, unless you are
3380 using a different installprefix. For extra portability, you
3381 should only use this variable within your makefiles.
3383 installhtml3dir (html3dir.U):
3384 This variable is really the same as html3direxp, unless you are
3385 using a different installprefix. For extra portability, you
3386 should only use this variable within your makefiles.
3388 installman1dir (man1dir.U):
3389 This variable is really the same as man1direxp, unless you are using
3390 AFS in which case it points to the read/write location whereas
3391 man1direxp only points to the read-only access location. For extra
3392 portability, you should only use this variable within your makefiles.
3394 installman3dir (man3dir.U):
3395 This variable is really the same as man3direxp, unless you are using
3396 AFS in which case it points to the read/write location whereas
3397 man3direxp only points to the read-only access location. For extra
3398 portability, you should only use this variable within your makefiles.
3400 installprefix (installprefix.U):
3401 This variable holds the name of the directory below which
3402 "make install" will install the package. For most users, this
3403 is the same as prefix. However, it is useful for
3404 installing the software into a different (usually temporary)
3405 location after which it can be bundled up and moved somehow
3406 to the final location specified by prefix.
3408 installprefixexp (installprefix.U):
3409 This variable holds the full absolute path of installprefix
3410 with all ~-expansion done.
3412 installprivlib (privlib.U):
3413 This variable is really the same as privlibexp but may differ on
3414 those systems using AFS. For extra portability, only this variable
3415 should be used in makefiles.
3417 installscript (scriptdir.U):
3418 This variable is usually the same as scriptdirexp, unless you are on
3419 a system running AFS, in which case they may differ slightly. You
3420 should always use this variable within your makefiles for portability.
3422 installsitearch (sitearch.U):
3423 This variable is really the same as sitearchexp but may differ on
3424 those systems using AFS. For extra portability, only this variable
3425 should be used in makefiles.
3427 installsitebin (sitebin.U):
3428 This variable is usually the same as sitebinexp, unless you are on
3429 a system running AFS, in which case they may differ slightly. You
3430 should always use this variable within your makefiles for portability.
3432 installsitehtml1dir (sitehtml1dir.U):
3433 This variable is really the same as sitehtml1direxp, unless you are using
3434 AFS in which case it points to the read/write location whereas
3435 html1direxp only points to the read-only access location. For extra
3436 portability, you should only use this variable within your makefiles.
3438 installsitehtml3dir (sitehtml3dir.U):
3439 This variable is really the same as sitehtml3direxp, unless you are using
3440 AFS in which case it points to the read/write location whereas
3441 html3direxp only points to the read-only access location. For extra
3442 portability, you should only use this variable within your makefiles.
3444 installsitelib (sitelib.U):
3445 This variable is really the same as sitelibexp but may differ on
3446 those systems using AFS. For extra portability, only this variable
3447 should be used in makefiles.
3449 installsiteman1dir (siteman1dir.U):
3450 This variable is really the same as siteman1direxp, unless you are using
3451 AFS in which case it points to the read/write location whereas
3452 man1direxp only points to the read-only access location. For extra
3453 portability, you should only use this variable within your makefiles.
3455 installsiteman3dir (siteman3dir.U):
3456 This variable is really the same as siteman3direxp, unless you are using
3457 AFS in which case it points to the read/write location whereas
3458 man3direxp only points to the read-only access location. For extra
3459 portability, you should only use this variable within your makefiles.
3461 installsitescript (sitescript.U):
3462 This variable is usually the same as sitescriptexp, unless you are on
3463 a system running AFS, in which case they may differ slightly. You
3464 should always use this variable within your makefiles for portability.
3466 installstyle (installstyle.U):
3467 This variable describes the "style" of the perl installation.
3468 This is intended to be useful for tools that need to
3469 manipulate entire perl distributions. Perl itself doesn't use
3470 this to find its libraries -- the library directories are
3471 stored directly in Config.pm. Currently, there are only two
3472 styles: "lib" and "lib/perl5". The default library locations
3473 (e.g. privlib, sitelib) are either $prefix/lib or
3474 $prefix/lib/perl5. The former is useful if $prefix is a
3475 directory dedicated to perl (e.g. /opt/perl), while the latter
3476 is useful if $prefix is shared by many packages, e.g. if
3479 Unfortunately, while this "style" variable is used to set
3480 defaults for all three directory hierarchies (core, vendor, and
3481 site), there is no guarantee that the same style is actually
3482 appropriate for all those directories. For example, $prefix
3483 might be /opt/perl, but $siteprefix might be /usr/local.
3484 (Perhaps, in retrospect, the "lib" style should never have been
3485 supported, but it did seem like a nice idea at the time.)
3487 The situation is even less clear for tools such as MakeMaker
3488 that can be used to install additional modules into
3489 non-standard places. For example, if a user intends to install
3490 a module into a private directory (perhaps by setting PREFIX on
3491 the Makefile.PL command line), then there is no reason to
3492 assume that the Configure-time $installstyle setting will be
3493 relevant for that PREFIX.
3495 This may later be extended to include other information, so
3496 be careful with pattern-matching on the results.
3498 For compatibility with perl5.005 and earlier, the default
3499 setting is based on whether or not $prefix contains the string
3502 installusrbinperl (instubperl.U):
3503 This variable tells whether Perl should be installed also as
3504 /usr/bin/perl in addition to
3507 installvendorarch (vendorarch.U):
3508 This variable is really the same as vendorarchexp but may differ on
3509 those systems using AFS. For extra portability, only this variable
3510 should be used in makefiles.
3512 installvendorbin (vendorbin.U):
3513 This variable is really the same as vendorbinexp but may differ on
3514 those systems using AFS. For extra portability, only this variable
3515 should be used in makefiles.
3517 installvendorhtml1dir (vendorhtml1dir.U):
3518 This variable is really the same as vendorhtml1direxp but may differ on
3519 those systems using AFS. For extra portability, only this variable
3520 should be used in makefiles.
3522 installvendorhtml3dir (vendorhtml3dir.U):
3523 This variable is really the same as vendorhtml3direxp but may differ on
3524 those systems using AFS. For extra portability, only this variable
3525 should be used in makefiles.
3527 installvendorlib (vendorlib.U):
3528 This variable is really the same as vendorlibexp but may differ on
3529 those systems using AFS. For extra portability, only this variable
3530 should be used in makefiles.
3532 installvendorman1dir (vendorman1dir.U):
3533 This variable is really the same as vendorman1direxp but may differ on
3534 those systems using AFS. For extra portability, only this variable
3535 should be used in makefiles.
3537 installvendorman3dir (vendorman3dir.U):
3538 This variable is really the same as vendorman3direxp but may differ on
3539 those systems using AFS. For extra portability, only this variable
3540 should be used in makefiles.
3542 installvendorscript (vendorscript.U):
3543 This variable is really the same as vendorscriptexp but may differ on
3544 those systems using AFS. For extra portability, only this variable
3545 should be used in makefiles.
3547 intsize (intsize.U):
3548 This variable contains the value of the INTSIZE symbol, which
3549 indicates to the C program how many bytes there are in an int.
3551 issymlink (issymlink.U):
3552 This variable holds the test command to test for a symbolic link
3553 (if they are supported). Typical values include 'test -h' and
3556 ivdformat (perlxvf.U):
3557 This variable contains the format string used for printing
3558 a Perl IV as a signed decimal integer.
3561 This variable is the size of an IV in bytes.
3564 This variable contains the C type used for Perl's IV.
3566 known_extensions (Extensions.U):
3567 This variable holds a list of all XS extensions included in
3571 This variable is defined but not used by Configure.
3572 The value is the empty string and is not useful.
3575 This variable indicates the program to be used to link
3576 libraries for dynamic loading. On some systems, it is 'ld'.
3577 On ELF systems, it should be $cc. Mostly, we'll try to respect
3578 the hint file setting.
3580 lddlflags (dlsrc.U):
3581 This variable contains any special flags that might need to be
3582 passed to $ld to create a shared library suitable for dynamic
3583 loading. It is up to the makefile to use it. For hpux, it
3584 should be '-b'. For sunos 4.1, it is empty.
3586 ldflags (ccflags.U):
3587 This variable contains any additional C loader flags desired by
3588 the user. It is up to the Makefile to use this.
3590 ldflags_uselargefiles (uselfs.U):
3591 This variable contains the loader flags needed by large file builds
3592 and added to ldflags by hints files.
3594 ldlibpthname (libperl.U):
3595 This variable holds the name of the shared library
3596 search path, often LD_LIBRARY_PATH. To get an empty
3597 string, the hints file must set this to 'none'.
3600 This variable is used internally by Configure to determine the
3601 full pathname (if any) of the less program. After Configure runs,
3602 the value is reset to a plain "less" and is not useful.
3605 This is an old synonym for _a.
3608 This variable contains the location of the C library.
3610 libperl (libperl.U):
3611 The perl executable is obtained by linking perlmain.c with
3612 libperl, any static extensions (usually just DynaLoader),
3613 and any other libraries needed on this system. libperl
3614 is usually libperl.a, but can also be libperl.so.xxx if
3615 the user wishes to build a perl executable with a shared
3619 This variable holds the general path (space-separated) used to find
3620 libraries. It is intended to be used by other units.
3623 This variable holds the additional libraries we want to use.
3624 It is up to the Makefile to deal with it. The list can be empty.
3627 This variable holds the directory names aka dirnames of the libraries
3628 we found and accepted, duplicates are removed.
3631 This variable holds the filenames aka basenames of the libraries
3632 we found and accepted.
3635 This variable holds the full pathnames of the libraries
3636 we found and accepted.
3639 This variable holds the directory names probed for libraries.
3641 libswanted (Myinit.U):
3642 This variable holds a list of all the libraries we want to
3643 search. The order is chosen to pick up the c library
3644 ahead of ucb or bsd libraries for SVR4.
3646 libswanted_uselargefiles (uselfs.U):
3647 This variable contains the libraries needed by large file builds
3648 and added to ldflags by hints files. It is a space separated list
3649 of the library names without the "lib" prefix or any suffix, just
3653 This variable is defined but not used by Configure.
3654 The value is the empty string and is not useful.
3657 This variable is defined but not used by Configure.
3658 The value is the empty string and is not useful.
3660 lkflags (ccflags.U):
3661 This variable contains any additional C partial linker flags desired by
3662 the user. It is up to the Makefile to use this.
3665 This variable is used internally by Configure to determine the
3666 full pathname (if any) of the ln program. After Configure runs,
3667 the value is reset to a plain "ln" and is not useful.
3670 This variable holds the name of the command to make
3671 symbolic links (if they are supported). It can be used
3672 in the Makefile. It is either 'ln -s' or 'ln'
3674 localtime_r_proto (d_localtime_r.U):
3675 This variable encodes the prototype of localtime_r.
3676 It is zero if d_localtime_r is undef, and one of the
3677 REENTRANT_PROTO_T_ABC macros of reentr.h if d_localtime_r
3680 locincpth (ccflags.U):
3681 This variable contains a list of additional directories to be
3682 searched by the compiler. The appropriate '-I' directives will
3683 be added to ccflags. This is intended to simplify setting
3684 local directories from the Configure command line.
3685 It's not much, but it parallels the loclibpth stuff in libpth.U.
3687 loclibpth (libpth.U):
3688 This variable holds the paths (space-separated) used to find local
3689 libraries. It is prepended to libpth, and is intended to be easily
3690 set from the command line.
3692 longdblsize (d_longdbl.U):
3693 This variable contains the value of the LONG_DOUBLESIZE symbol, which
3694 indicates to the C program how many bytes there are in a long double,
3695 if this system supports long doubles.
3697 longlongsize (d_longlong.U):
3698 This variable contains the value of the LONGLONGSIZE symbol, which
3699 indicates to the C program how many bytes there are in a long long,
3700 if this system supports long long.
3702 longsize (intsize.U):
3703 This variable contains the value of the LONGSIZE symbol, which
3704 indicates to the C program how many bytes there are in a long.
3707 This variable is defined but not used by Configure.
3708 The value is the empty string and is not useful.
3711 This variable is defined but not used by Configure.
3712 The value is the empty string and is not useful.
3715 This variable is used internally by Configure to determine the
3716 full pathname (if any) of the ls program. After Configure runs,
3717 the value is reset to a plain "ls" and is not useful.
3719 lseeksize (lseektype.U):
3720 This variable defines lseektype to be something like off_t, long,
3721 or whatever type is used to declare lseek offset's type in the
3722 kernel (which also appears to be lseek's return type).
3724 lseektype (lseektype.U):
3725 This variable defines lseektype to be something like off_t, long,
3726 or whatever type is used to declare lseek offset's type in the
3727 kernel (which also appears to be lseek's return type).
3730 This variable indicates that the Misc Attribute Definition code is to
3734 If the Misc Attribute Decoration is to be compiled, this variable is
3735 set to the name of the extra header files to be used, else it is ''
3738 If the Misc Attribute Decoration is to be compiled, this variable is
3739 set to the name of the extra object files to be used, else it is ''
3742 If the Misc Attribute Decoration is to be compiled, this variable is
3743 set to the name of the extra C source files to be used, else it is ''
3746 This variable is defined but not used by Configure.
3747 The value is the empty string and is not useful.
3750 This variable is defined but not used by Configure.
3751 The value is the empty string and is not useful.
3754 This variable is used internally by Configure to determine the
3755 full pathname (if any) of the make program. After Configure runs,
3756 the value is reset to a plain "make" and is not useful.
3758 make_set_make (make.U):
3759 Some versions of 'make' set the variable MAKE. Others do not.
3760 This variable contains the string to be included in Makefile.SH
3761 so that MAKE is set if needed, and not if not needed.
3762 Possible values are:
3764 make_set_make='#' # If your make program handles this for you,
3766 make_set_make="MAKE=$make" # if it doesn't.
3768 This uses a comment character so that we can distinguish a
3769 'set' value (from a previous config.sh or Configure '-D' option)
3770 from an uncomputed value.
3772 mallocobj (mallocsrc.U):
3773 This variable contains the name of the malloc.o that this package
3774 generates, if that malloc.o is preferred over the system malloc.
3775 Otherwise the value is null. This variable is intended for generating
3776 Makefiles. See mallocsrc.
3778 mallocsrc (mallocsrc.U):
3779 This variable contains the name of the malloc.c that comes with
3780 the package, if that malloc.c is preferred over the system malloc.
3781 Otherwise the value is null. This variable is intended for generating
3784 malloctype (mallocsrc.U):
3785 This variable contains the kind of ptr returned by malloc and realloc.
3787 man1dir (man1dir.U):
3788 This variable contains the name of the directory in which manual
3789 source pages are to be put. It is the responsibility of the
3790 Makefile.SH to get the value of this into the proper command.
3791 You must be prepared to do the ~name expansion yourself.
3793 man1direxp (man1dir.U):
3794 This variable is the same as the man1dir variable, but is filename
3795 expanded at configuration time, for convenient use in makefiles.
3797 man1ext (man1dir.U):
3798 This variable contains the extension that the manual page should
3799 have: one of 'n', 'l', or '1'. The Makefile must supply the '.'.
3802 man3dir (man3dir.U):
3803 This variable contains the name of the directory in which manual
3804 source pages are to be put. It is the responsibility of the
3805 Makefile.SH to get the value of this into the proper command.
3806 You must be prepared to do the ~name expansion yourself.
3808 man3direxp (man3dir.U):
3809 This variable is the same as the man3dir variable, but is filename
3810 expanded at configuration time, for convenient use in makefiles.
3812 man3ext (man3dir.U):
3813 This variable contains the extension that the manual page should
3814 have: one of 'n', 'l', or '3'. The Makefile must supply the '.'.
3817 mips_type (usrinc.U):
3818 This variable holds the environment type for the mips system.
3819 Possible values are "BSD 4.3" and "System V".
3821 mistrustnm (Csym.U):
3822 This variable can be used to establish a fallthrough for the cases
3823 where nm fails to find a symbol. If usenm is false or usenm is true
3824 and mistrustnm is false, this variable has no effect. If usenm is true
3825 and mistrustnm is "compile", a test program will be compiled to try to
3826 find any symbol that can't be located via nm lookup. If mistrustnm is
3827 "run", the test program will be run as well as being compiled.
3830 This variable is used internally by Configure to determine the
3831 full pathname (if any) of the mkdir program. After Configure runs,
3832 the value is reset to a plain "mkdir" and is not useful.
3834 mmaptype (d_mmap.U):
3835 This symbol contains the type of pointer returned by mmap()
3836 (and simultaneously the type of the first argument).
3837 It can be 'void *' or 'caddr_t'.
3839 modetype (modetype.U):
3840 This variable defines modetype to be something like mode_t,
3841 int, unsigned short, or whatever type is used to declare file
3842 modes for system calls.
3845 This variable is used internally by Configure to determine the
3846 full pathname (if any) of the more program. After Configure runs,
3847 the value is reset to a plain "more" and is not useful.
3849 multiarch (multiarch.U):
3850 This variable conditionally defines the MULTIARCH symbol
3851 which signifies the presence of multiplatform files.
3852 This is normally set by hints files.
3855 This variable is defined but not used by Configure.
3856 The value is the empty string and is not useful.
3858 myarchname (archname.U):
3859 This variable holds the architecture name computed by Configure in
3860 a previous run. It is not intended to be perused by any user and
3861 should never be set in a hint file.
3863 mydomain (myhostname.U):
3864 This variable contains the eventual value of the MYDOMAIN symbol,
3865 which is the domain of the host the program is going to run on.
3866 The domain must be appended to myhostname to form a complete host name.
3867 The dot comes with mydomain, and need not be supplied by the program.
3869 myhostname (myhostname.U):
3870 This variable contains the eventual value of the MYHOSTNAME symbol,
3871 which is the name of the host the program is going to run on.
3872 The domain is not kept with hostname, but must be gotten from mydomain.
3873 The dot comes with mydomain, and need not be supplied by the program.
3875 myuname (Oldconfig.U):
3876 The output of 'uname -a' if available, otherwise the hostname. On Xenix,
3877 pseudo variables assignments in the output are stripped, thank you. The
3878 whole thing is then lower-cased.
3881 This variable contains the '-n' flag if that is what causes the echo
3882 command to suppress newline. Otherwise it is null. Correct usage is
3883 $echo $n "prompt for a question: $c".
3885 need_va_copy (need_va_copy.U):
3886 This symbol, if defined, indicates that the system stores
3887 the variable argument list datatype, va_list, in a format
3888 that cannot be copied by simple assignment, so that some
3889 other means must be used when copying is required.
3890 As such systems vary in their provision (or non-provision)
3891 of copying mechanisms, handy.h defines a platform-
3892 independent macro, Perl_va_copy(src, dst), to do the job.
3894 netdb_hlen_type (netdbtype.U):
3895 This variable holds the type used for the 2nd argument to
3896 gethostbyaddr(). Usually, this is int or size_t or unsigned.
3897 This is only useful if you have gethostbyaddr(), naturally.
3899 netdb_host_type (netdbtype.U):
3900 This variable holds the type used for the 1st argument to
3901 gethostbyaddr(). Usually, this is char * or void *, possibly
3902 with or without a const prefix.
3903 This is only useful if you have gethostbyaddr(), naturally.
3905 netdb_name_type (netdbtype.U):
3906 This variable holds the type used for the argument to
3907 gethostbyname(). Usually, this is char * or const char *.
3908 This is only useful if you have gethostbyname(), naturally.
3910 netdb_net_type (netdbtype.U):
3911 This variable holds the type used for the 1st argument to
3912 getnetbyaddr(). Usually, this is int or long.
3913 This is only useful if you have getnetbyaddr(), naturally.
3916 This variable is used internally by Configure to determine the
3917 full pathname (if any) of the nm program. After Configure runs,
3918 the value is reset to a plain "nm" and is not useful.
3921 This variable holds the options that may be necessary for nm.
3923 nm_so_opt (usenm.U):
3924 This variable holds the options that may be necessary for nm
3925 to work on a shared library but that can not be used on an
3926 archive library. Currently, this is only used by Linux, where
3927 nm --dynamic is *required* to get symbols from an ELF library which
3928 has been stripped, but nm --dynamic is *fatal* on an archive library.
3929 Maybe Linux should just always set usenm=false.
3931 nonxs_ext (Extensions.U):
3932 This variable holds a list of all non-xs extensions included
3933 in the package. All of them will be built.
3936 This variable is used internally by Configure to determine the
3937 full pathname (if any) of the nroff program. After Configure runs,
3938 the value is reset to a plain "nroff" and is not useful.
3940 nv_overflows_integers_at (perlxv.U):
3941 This variable gives the largest integer value that NVs can hold
3942 as a constant floating point expression.
3943 If it could not be determined, it holds the value 0.
3945 nv_preserves_uv_bits (perlxv.U):
3946 This variable indicates how many of bits type uvtype
3947 a variable nvtype can preserve.
3949 nveformat (perlxvf.U):
3950 This variable contains the format string used for printing
3951 a Perl NV using %e-ish floating point format.
3953 nvEUformat (perlxvf.U):
3954 This variable contains the format string used for printing
3955 a Perl NV using %E-ish floating point format.
3957 nvfformat (perlxvf.U):
3958 This variable confains the format string used for printing
3959 a Perl NV using %f-ish floating point format.
3961 nvFUformat (perlxvf.U):
3962 This variable confains the format string used for printing
3963 a Perl NV using %F-ish floating point format.
3965 nvgformat (perlxvf.U):
3966 This variable contains the format string used for printing
3967 a Perl NV using %g-ish floating point format.
3969 nvGUformat (perlxvf.U):
3970 This variable contains the format string used for printing
3971 a Perl NV using %G-ish floating point format.
3974 This variable is the size of an NV in bytes.
3977 This variable contains the C type used for Perl's NV.
3979 o_nonblock (nblock_io.U):
3980 This variable bears the symbol value to be used during open() or fcntl()
3981 to turn on non-blocking I/O for a file descriptor. If you wish to switch
3982 between blocking and non-blocking, you may try ioctl(FIOSNBIO) instead,
3983 but that is only supported by some devices.
3986 This is an old synonym for _o.
3988 old_pthread_create_joinable (d_pthrattrj.U):
3989 This variable defines the constant to use for creating joinable
3990 (aka undetached) pthreads. Unused if pthread.h defines
3991 PTHREAD_CREATE_JOINABLE. If used, possible values are
3992 PTHREAD_CREATE_UNDETACHED and __UNDETACHED.
3994 optimize (ccflags.U):
3995 This variable contains any optimizer/debugger flag that should be used.
3996 It is up to the Makefile to use it.
3998 orderlib (orderlib.U):
3999 This variable is "true" if the components of libraries must be ordered
4000 (with `lorder $* | tsort`) before placing them in an archive. Set to
4001 "false" if ranlib or ar can generate random libraries.
4003 osname (Oldconfig.U):
4004 This variable contains the operating system name (e.g. sunos,
4005 solaris, hpux, etc.). It can be useful later on for setting
4006 defaults. Any spaces are replaced with underscores. It is set
4007 to a null string if we can't figure it out.
4009 osvers (Oldconfig.U):
4010 This variable contains the operating system version (e.g.
4011 4.1.3, 5.2, etc.). It is primarily used for helping select
4012 an appropriate hints file, but might be useful elsewhere for
4013 setting defaults. It is set to '' if we can't figure it out.
4014 We try to be flexible about how much of the version number
4015 to keep, e.g. if 4.1.1, 4.1.2, and 4.1.3 are essentially the
4016 same for this package, hints files might just be os_4.0 or
4017 os_4.1, etc., not keeping separate files for each little release.
4019 otherlibdirs (otherlibdirs.U):
4020 This variable contains a colon-separated set of paths for the perl
4021 binary to search for additional library files or modules.
4022 These directories will be tacked to the end of @INC.
4023 Perl will automatically search below each path for version-
4024 and architecture-specific directories. See inc_version_list
4026 A value of ' ' means 'none' and is used to preserve this value
4027 for the next run through Configure.
4029 package (package.U):
4030 This variable contains the name of the package being constructed.
4031 It is primarily intended for the use of later Configure units.
4034 This variable contains the name of the preferred pager on the system.
4035 Usual values are (the full pathnames of) more, less, pg, or cat.
4038 This variable contains a command that produces the text of the
4039 /etc/passwd file. This is normally "cat /etc/passwd", but can be
4040 "ypcat passwd" when NIS is used.
4041 On some systems, such as os390, there may be no equivalent
4042 command, in which case this variable is unset.
4044 patchlevel (patchlevel.U):
4045 The patchlevel level of this package.
4046 The value of patchlevel comes from the patchlevel.h file.
4047 In a version number such as 5.6.1, this is the "6".
4048 In patchlevel.h, this is referred to as "PERL_VERSION".
4051 This is an old synonym for p_ in Head.U, the character
4052 used to separate elements in the command shell search PATH.
4055 This variable is defined but not used by Configure.
4056 The value is the empty string and is not useful.
4059 This variable contains the full path (if any) to a previously
4060 installed perl5.005 or later suitable for running the script
4061 to determine inc_version_list.
4063 PERL_API_REVISION (patchlevel.h):
4064 This number describes the earliest compatible PERL_REVISION of
4065 Perl ("compatibility" here being defined as sufficient binary/API
4066 compatibility to run XS code built with the older version).
4067 Normally this does not change across maintenance releases.
4068 Please read the comment in patchlevel.h.
4070 PERL_API_SUBVERSION (patchlevel.h):
4071 This number describes the earliest compatible PERL_SUBVERSION of
4072 Perl ("compatibility" here being defined as sufficient binary/API
4073 compatibility to run XS code built with the older version).
4074 Normally this does not change across maintenance releases.
4075 Please read the comment in patchlevel.h.
4077 PERL_API_VERSION (patchlevel.h):
4078 This number describes the earliest compatible PERL_VERSION of
4079 Perl ("compatibility" here being defined as sufficient binary/API
4080 compatibility to run XS code built with the older version).
4081 Normally this does not change across maintenance releases.
4082 Please read the comment in patchlevel.h.
4084 PERL_CONFIG_SH (Oldsyms.U):
4085 This is set to 'true' in config.sh so that a shell script
4086 sourcing config.sh can tell if it has been sourced already.
4088 PERL_PATCHLEVEL (Oldsyms.U):
4089 This symbol reflects the patchlevel, if available. Will usually
4090 come from the .patch file, which is available when the perl
4091 source tree was fetched with rsync.
4093 perl_patchlevel (patchlevel.U):
4094 This is the Perl patch level, a numeric change identifier,
4095 as defined by whichever source code maintenance system
4096 is used to maintain the patches; currently Perforce.
4097 It does not correlate with the Perl version numbers or
4098 the maintenance versus development dichotomy except
4099 by also being increasing.
4101 PERL_REVISION (Oldsyms.U):
4102 In a Perl version number such as 5.6.2, this is the 5.
4103 This value is manually set in patchlevel.h
4105 PERL_SUBVERSION (Oldsyms.U):
4106 In a Perl version number such as 5.6.2, this is the 2.
4107 Values greater than 50 represent potentially unstable
4108 development subversions.
4109 This value is manually set in patchlevel.h
4111 PERL_VERSION (Oldsyms.U):
4112 In a Perl version number such as 5.6.2, this is the 6.
4113 This value is manually set in patchlevel.h
4115 perladmin (perladmin.U):
4116 Electronic mail address of the perl5 administrator.
4119 The list of libraries needed by Perl only (any libraries needed
4120 by extensions only will by dropped, if using dynamic loading).
4122 perlpath (perlpath.U):
4123 This variable contains the eventual value of the PERLPATH symbol,
4124 which contains the name of the perl interpreter to be used in
4125 shell scripts and in the "eval 'exec'" idiom. This variable is
4126 not necessarily the pathname of the file containing the perl
4127 interpreter; you must append the executable extension (_exe) if
4128 it is not already present. Note that Perl code that runs during
4129 the Perl build process cannot reference this variable, as Perl
4130 may not have been installed, or even if installed, may be a
4131 different version of Perl.
4134 This variable is used internally by Configure to determine the
4135 full pathname (if any) of the pg program. After Configure runs,
4136 the value is reset to a plain "pg" and is not useful.
4138 phostname (myhostname.U):
4139 This variable contains the eventual value of the PHOSTNAME symbol,
4140 which is a command that can be fed to popen() to get the host name.
4141 The program should probably not presume that the domain is or isn't
4144 pidtype (pidtype.U):
4145 This variable defines PIDTYPE to be something like pid_t, int,
4146 ushort, or whatever type is used to declare process ids in the kernel.
4149 Holds the private path used by Configure to find out the libraries.
4150 Its value is prepend to libpth. This variable takes care of special
4151 machines, like the mips. Usually, it should be empty.
4154 This variable is defined but not used by Configure.
4155 The value is the empty string and is not useful.
4158 This variable is defined but not used by Configure.
4159 The value is the empty string and is not useful.
4162 This variable holds the name of the directory below which the
4163 user will install the package. Usually, this is /usr/local, and
4164 executables go in /usr/local/bin, library stuff in /usr/local/lib,
4165 man pages in /usr/local/man, etc. It is only used to set defaults
4166 for things in bin.U, mansrc.U, privlib.U, or scriptdir.U.
4168 prefixexp (prefix.U):
4169 This variable holds the full absolute path of the directory below
4170 which the user will install the package. Derived from prefix.
4172 privlib (privlib.U):
4173 This variable contains the eventual value of the PRIVLIB symbol,
4174 which is the name of the private library for this package. It may
4175 have a ~ on the front. It is up to the makefile to eventually create
4176 this directory while performing installation (with ~ substitution).
4178 privlibexp (privlib.U):
4179 This variable is the ~name expanded version of privlib, so that you
4180 may use it directly in Makefiles or shell scripts.
4182 procselfexe (d_procselfexe.U):
4183 If d_procselfexe is defined, $procselfexe is the filename
4184 of the symbolic link pointing to the absolute pathname of
4185 the executing program.
4187 prototype (prototype.U):
4188 This variable holds the eventual value of CAN_PROTOTYPE, which
4189 indicates the C compiler can handle funciton prototypes.
4191 ptrsize (ptrsize.U):
4192 This variable contains the value of the PTRSIZE symbol, which
4193 indicates to the C program how many bytes there are in a pointer.
4195 quadkind (quadtype.U):
4196 This variable, if defined, encodes the type of a quad:
4197 1 = int, 2 = long, 3 = long long, 4 = int64_t.
4199 quadtype (quadtype.U):
4200 This variable defines Quad_t to be something like long, int,
4201 long long, int64_t, or whatever type is used for 64-bit integers.
4203 randbits (randfunc.U):
4204 Indicates how many bits are produced by the function used to
4205 generate normalized random numbers.
4207 randfunc (randfunc.U):
4208 Indicates the name of the random number function to use.
4209 Values include drand48, random, and rand. In C programs,
4210 the 'Drand01' macro is defined to generate uniformly distributed
4211 random numbers over the range [0., 1.[ (see drand01 and nrand).
4213 random_r_proto (d_random_r.U):
4214 This variable encodes the prototype of random_r.
4215 It is zero if d_random_r is undef, and one of the
4216 REENTRANT_PROTO_T_ABC macros of reentr.h if d_random_r
4219 randseedtype (randfunc.U):
4220 Indicates the type of the argument of the seedfunc.
4222 ranlib (orderlib.U):
4223 This variable is set to the pathname of the ranlib program, if it is
4224 needed to generate random libraries. Set to ":" if ar can generate
4225 random libraries or if random libraries are not supported
4227 rd_nodata (nblock_io.U):
4228 This variable holds the return code from read() when no data is
4229 present. It should be -1, but some systems return 0 when O_NDELAY is
4230 used, which is a shame because you cannot make the difference between
4231 no data and an EOF.. Sigh!
4233 readdir64_r_proto (d_readdir64_r.U):
4234 This variable encodes the prototype of readdir64_r.
4235 It is zero if d_readdir64_r is undef, and one of the
4236 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir64_r
4239 readdir_r_proto (d_readdir_r.U):
4240 This variable encodes the prototype of readdir_r.
4241 It is zero if d_readdir_r is undef, and one of the
4242 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir_r
4245 revision (patchlevel.U):
4246 The value of revision comes from the patchlevel.h file.
4247 In a version number such as 5.6.1, this is the "5".
4248 In patchlevel.h, this is referred to as "PERL_REVISION".
4251 This variable is used internally by Configure to determine the
4252 full pathname (if any) of the rm program. After Configure runs,
4253 the value is reset to a plain "rm" and is not useful.
4256 This is a cleanup variable for try test programs.
4257 Internal Configure use only.
4260 This variable is defined but not used by Configure.
4261 The value is the empty string and is not useful.
4264 This variable contains the command used by Configure
4265 to copy and execute a cross-compiled executable in the
4266 target host. Useful and available only during Perl build.
4267 Empty string '' if not cross-compiling.
4270 This variable contains 'true' or 'false' depending whether the
4271 nm extraction should be performed or not, according to the value
4272 of usenm and the flags on the Configure command line.
4274 sched_yield (d_pthread_y.U):
4275 This variable defines the way to yield the execution
4276 of the current thread.
4278 scriptdir (scriptdir.U):
4279 This variable holds the name of the directory in which the user wants
4280 to put publicly scripts for the package in question. It is either
4281 the same directory as for binaries, or a special one that can be
4282 mounted across different architectures, like /usr/share. Programs
4283 must be prepared to deal with ~name expansion.
4285 scriptdirexp (scriptdir.U):
4286 This variable is the same as scriptdir, but is filename expanded
4287 at configuration time, for programs not wanting to bother with it.
4290 This variable is used internally by Configure to determine the
4291 full pathname (if any) of the sed program. After Configure runs,
4292 the value is reset to a plain "sed" and is not useful.
4294 seedfunc (randfunc.U):
4295 Indicates the random number generating seed function.
4296 Values include srand48, srandom, and srand.
4298 selectminbits (selectminbits.U):
4299 This variable holds the minimum number of bits operated by select.
4300 That is, if you do select(n, ...), how many bits at least will be
4301 cleared in the masks if some activity is detected. Usually this
4302 is either n or 32*ceil(n/32), especially many little-endians do
4303 the latter. This is only useful if you have select(), naturally.
4305 selecttype (selecttype.U):
4306 This variable holds the type used for the 2nd, 3rd, and 4th
4307 arguments to select. Usually, this is 'fd_set *', if HAS_FD_SET
4308 is defined, and 'int *' otherwise. This is only useful if you
4309 have select(), naturally.
4312 This variable is defined but not used by Configure.
4313 The value is the empty string and is not useful.
4315 setgrent_r_proto (d_setgrent_r.U):
4316 This variable encodes the prototype of setgrent_r.
4317 It is zero if d_setgrent_r is undef, and one of the
4318 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setgrent_r
4321 sethostent_r_proto (d_sethostent_r.U):
4322 This variable encodes the prototype of sethostent_r.
4323 It is zero if d_sethostent_r is undef, and one of the
4324 REENTRANT_PROTO_T_ABC macros of reentr.h if d_sethostent_r
4327 setlocale_r_proto (d_setlocale_r.U):
4328 This variable encodes the prototype of setlocale_r.
4329 It is zero if d_setlocale_r is undef, and one of the
4330 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setlocale_r
4333 setnetent_r_proto (d_setnetent_r.U):
4334 This variable encodes the prototype of setnetent_r.
4335 It is zero if d_setnetent_r is undef, and one of the
4336 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setnetent_r
4339 setprotoent_r_proto (d_setprotoent_r.U):
4340 This variable encodes the prototype of setprotoent_r.
4341 It is zero if d_setprotoent_r is undef, and one of the
4342 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setprotoent_r
4345 setpwent_r_proto (d_setpwent_r.U):
4346 This variable encodes the prototype of setpwent_r.
4347 It is zero if d_setpwent_r is undef, and one of the
4348 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setpwent_r
4351 setservent_r_proto (d_setservent_r.U):
4352 This variable encodes the prototype of setservent_r.
4353 It is zero if d_setservent_r is undef, and one of the
4354 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setservent_r
4357 sGMTIME_max (time_size.U):
4358 This variable defines the maximum value of the time_t offset that
4359 the system function gmtime () accepts
4361 sGMTIME_min (time_size.U):
4362 This variable defines the minimum value of the time_t offset that
4363 the system function gmtime () accepts
4366 This variable contains the full pathname of the shell used
4367 on this system to execute Bourne shell scripts. Usually, this will be
4368 /bin/sh, though it's possible that some systems will have /bin/ksh,
4369 /bin/pdksh, /bin/ash, /bin/bash, or even something such as
4371 This unit comes before Options.U, so you can't set sh with a '-D'
4372 option, though you can override this (and startsh)
4373 with '-O -Dsh=/bin/whatever -Dstartsh=whatever'
4376 This variable is defined but not used by Configure.
4377 The value is the empty string and is not useful.
4379 sharpbang (spitshell.U):
4380 This variable contains the string #! if this system supports that
4383 shmattype (d_shmat.U):
4384 This symbol contains the type of pointer returned by shmat().
4385 It can be 'void *' or 'char *'.
4387 shortsize (intsize.U):
4388 This variable contains the value of the SHORTSIZE symbol which
4389 indicates to the C program how many bytes there are in a short.
4391 shrpenv (libperl.U):
4392 If the user builds a shared libperl.so, then we need to tell the
4393 'perl' executable where it will be able to find the installed libperl.so.
4394 One way to do this on some systems is to set the environment variable
4395 LD_RUN_PATH to the directory that will be the final location of the
4396 shared libperl.so. The makefile can use this with something like
4397 $shrpenv $(CC) -o perl perlmain.o $libperl $libs
4399 shrpenv="env LD_RUN_PATH=$archlibexp/CORE"
4402 See the main perl Makefile.SH for actual working usage.
4403 Alternatively, we might be able to use a command line option such
4404 as -R $archlibexp/CORE (Solaris) or -Wl,-rpath
4405 $archlibexp/CORE (Linux).
4407 shsharp (spitshell.U):
4408 This variable tells further Configure units whether your sh can
4411 sig_count (sig_name.U):
4412 This variable holds a number larger than the largest valid
4413 signal number. This is usually the same as the NSIG macro.
4415 sig_name (sig_name.U):
4416 This variable holds the signal names, space separated. The leading
4417 SIG in signal name is removed. A ZERO is prepended to the list.
4418 This is currently not used, sig_name_init is used instead.
4420 sig_name_init (sig_name.U):
4421 This variable holds the signal names, enclosed in double quotes and
4422 separated by commas, suitable for use in the SIG_NAME definition
4423 below. A "ZERO" is prepended to the list, and the list is
4424 terminated with a plain 0. The leading SIG in signal names
4425 is removed. See sig_num.
4427 sig_num (sig_name.U):
4428 This variable holds the signal numbers, space separated. A ZERO is
4429 prepended to the list (corresponding to the fake SIGZERO).
4430 Those numbers correspond to the value of the signal listed
4431 in the same place within the sig_name list.
4432 This is currently not used, sig_num_init is used instead.
4434 sig_num_init (sig_name.U):
4435 This variable holds the signal numbers, enclosed in double quotes and
4436 separated by commas, suitable for use in the SIG_NUM definition
4437 below. A "ZERO" is prepended to the list, and the list is
4438 terminated with a plain 0.
4440 sig_size (sig_name.U):
4441 This variable contains the number of elements of the sig_name
4444 signal_t (d_voidsig.U):
4445 This variable holds the type of the signal handler (void or int).
4447 sitearch (sitearch.U):
4448 This variable contains the eventual value of the SITEARCH symbol,
4449 which is the name of the private library for this package. It may
4450 have a ~ on the front. It is up to the makefile to eventually create
4451 this directory while performing installation (with ~ substitution).
4452 The standard distribution will put nothing in this directory.
4453 After perl has been installed, users may install their own local
4454 architecture-dependent modules in this directory with
4455 MakeMaker Makefile.PL
4456 or equivalent. See INSTALL for details.
4458 sitearchexp (sitearch.U):
4459 This variable is the ~name expanded version of sitearch, so that you
4460 may use it directly in Makefiles or shell scripts.
4462 sitebin (sitebin.U):
4463 This variable holds the name of the directory in which the user wants
4464 to put add-on publicly executable files for the package in question. It
4465 is most often a local directory such as /usr/local/bin. Programs using
4466 this variable must be prepared to deal with ~name substitution.
4467 The standard distribution will put nothing in this directory.
4468 After perl has been installed, users may install their own local
4469 executables in this directory with
4470 MakeMaker Makefile.PL
4471 or equivalent. See INSTALL for details.
4473 sitebinexp (sitebin.U):
4474 This is the same as the sitebin variable, but is filename expanded at
4475 configuration time, for use in your makefiles.
4477 sitehtml1dir (sitehtml1dir.U):
4478 This variable contains the name of the directory in which site-specific
4479 html source pages are to be put. It is the responsibility of the
4480 Makefile.SH to get the value of this into the proper command.
4481 You must be prepared to do the ~name expansion yourself.
4482 The standard distribution will put nothing in this directory.
4483 After perl has been installed, users may install their own local
4484 html pages in this directory with
4485 MakeMaker Makefile.PL
4486 or equivalent. See INSTALL for details.
4488 sitehtml1direxp (sitehtml1dir.U):
4489 This variable is the same as the sitehtml1dir variable, but is filename
4490 expanded at configuration time, for convenient use in makefiles.
4492 sitehtml3dir (sitehtml3dir.U):
4493 This variable contains the name of the directory in which site-specific
4494 library html source pages are to be put. It is the responsibility of the
4495 Makefile.SH to get the value of this into the proper command.
4496 You must be prepared to do the ~name expansion yourself.
4497 The standard distribution will put nothing in this directory.
4498 After perl has been installed, users may install their own local
4499 library html pages in this directory with
4500 MakeMaker Makefile.PL
4501 or equivalent. See INSTALL for details.
4503 sitehtml3direxp (sitehtml3dir.U):
4504 This variable is the same as the sitehtml3dir variable, but is filename
4505 expanded at configuration time, for convenient use in makefiles.
4507 sitelib (sitelib.U):
4508 This variable contains the eventual value of the SITELIB symbol,
4509 which is the name of the private library for this package. It may
4510 have a ~ on the front. It is up to the makefile to eventually create
4511 this directory while performing installation (with ~ substitution).
4512 The standard distribution will put nothing in this directory.
4513 After perl has been installed, users may install their own local
4514 architecture-independent modules in this directory with
4515 MakeMaker Makefile.PL
4516 or equivalent. See INSTALL for details.
4518 sitelib_stem (sitelib.U):
4519 This variable is $sitelibexp with any trailing version-specific component
4520 removed. The elements in inc_version_list (inc_version_list.U) can
4521 be tacked onto this variable to generate a list of directories to search.
4523 sitelibexp (sitelib.U):
4524 This variable is the ~name expanded version of sitelib, so that you
4525 may use it directly in Makefiles or shell scripts.
4527 siteman1dir (siteman1dir.U):
4528 This variable contains the name of the directory in which site-specific
4529 manual source pages are to be put. It is the responsibility of the
4530 Makefile.SH to get the value of this into the proper command.
4531 You must be prepared to do the ~name expansion yourself.
4532 The standard distribution will put nothing in this directory.
4533 After perl has been installed, users may install their own local
4534 man1 pages in this directory with
4535 MakeMaker Makefile.PL
4536 or equivalent. See INSTALL for details.
4538 siteman1direxp (siteman1dir.U):
4539 This variable is the same as the siteman1dir variable, but is filename
4540 expanded at configuration time, for convenient use in makefiles.
4542 siteman3dir (siteman3dir.U):
4543 This variable contains the name of the directory in which site-specific
4544 library man source pages are to be put. It is the responsibility of the
4545 Makefile.SH to get the value of this into the proper command.
4546 You must be prepared to do the ~name expansion yourself.
4547 The standard distribution will put nothing in this directory.
4548 After perl has been installed, users may install their own local
4549 man3 pages in this directory with
4550 MakeMaker Makefile.PL
4551 or equivalent. See INSTALL for details.
4553 siteman3direxp (siteman3dir.U):
4554 This variable is the same as the siteman3dir variable, but is filename
4555 expanded at configuration time, for convenient use in makefiles.
4557 siteprefix (siteprefix.U):
4558 This variable holds the full absolute path of the directory below
4559 which the user will install add-on packages.
4560 See INSTALL for usage and examples.
4562 siteprefixexp (siteprefix.U):
4563 This variable holds the full absolute path of the directory below
4564 which the user will install add-on packages. Derived from siteprefix.
4566 sitescript (sitescript.U):
4567 This variable holds the name of the directory in which the user wants
4568 to put add-on publicly executable files for the package in question. It
4569 is most often a local directory such as /usr/local/bin. Programs using
4570 this variable must be prepared to deal with ~name substitution.
4571 The standard distribution will put nothing in this directory.
4572 After perl has been installed, users may install their own local
4573 scripts in this directory with
4574 MakeMaker Makefile.PL
4575 or equivalent. See INSTALL for details.
4577 sitescriptexp (sitescript.U):
4578 This is the same as the sitescript variable, but is filename expanded at
4579 configuration time, for use in your makefiles.
4581 sizesize (sizesize.U):
4582 This variable contains the size of a sizetype in bytes.
4584 sizetype (sizetype.U):
4585 This variable defines sizetype to be something like size_t,
4586 unsigned long, or whatever type is used to declare length
4587 parameters for string functions.
4590 This variable is defined but not used by Configure.
4591 The value is the empty string and is not useful.
4593 sLOCALTIME_max (time_size.U):
4594 This variable defines the maximum value of the time_t offset that
4595 the system function localtime () accepts
4597 sLOCALTIME_min (time_size.U):
4598 This variable defines the minimum value of the time_t offset that
4599 the system function localtime () accepts
4602 This variable is defined but not used by Configure.
4603 The value is the empty string and is not useful.
4606 This variable holds the extension used to identify shared libraries
4607 (also known as shared objects) on the system. Usually set to 'so'.
4609 sockethdr (d_socket.U):
4610 This variable has any cpp '-I' flags needed for socket support.
4612 socketlib (d_socket.U):
4613 This variable has the names of any libraries needed for socket support.
4615 socksizetype (socksizetype.U):
4616 This variable holds the type used for the size argument
4617 for various socket calls like accept. Usual values include
4618 socklen_t, size_t, and int.
4621 This variable is used internally by Configure to determine the
4622 full pathname (if any) of the sort program. After Configure runs,
4623 the value is reset to a plain "sort" and is not useful.
4625 spackage (package.U):
4626 This variable contains the name of the package being constructed,
4627 with the first letter uppercased, i.e. suitable for starting
4630 spitshell (spitshell.U):
4631 This variable contains the command necessary to spit out a runnable
4632 shell on this system. It is either cat or a grep '-v' for # comments.
4634 sPRId64 (quadfio.U):
4635 This variable, if defined, contains the string used by stdio to
4636 format 64-bit decimal numbers (format 'd') for output.
4638 sPRIeldbl (longdblfio.U):
4639 This variable, if defined, contains the string used by stdio to
4640 format long doubles (format 'e') for output.
4642 sPRIEUldbl (longdblfio.U):
4643 This variable, if defined, contains the string used by stdio to
4644 format long doubles (format 'E') for output.
4645 The 'U' in the name is to separate this from sPRIeldbl so that even
4646 case-blind systems can see the difference.
4648 sPRIfldbl (longdblfio.U):
4649 This variable, if defined, contains the string used by stdio to
4650 format long doubles (format 'f') for output.
4652 sPRIFUldbl (longdblfio.U):
4653 This variable, if defined, contains the string used by stdio to
4654 format long doubles (format 'F') for output.
4655 The 'U' in the name is to separate this from sPRIfldbl so that even
4656 case-blind systems can see the difference.
4658 sPRIgldbl (longdblfio.U):
4659 This variable, if defined, contains the string used by stdio to
4660 format long doubles (format 'g') for output.
4662 sPRIGUldbl (longdblfio.U):
4663 This variable, if defined, contains the string used by stdio to
4664 format long doubles (format 'G') for output.
4665 The 'U' in the name is to separate this from sPRIgldbl so that even
4666 case-blind systems can see the difference.
4668 sPRIi64 (quadfio.U):
4669 This variable, if defined, contains the string used by stdio to
4670 format 64-bit decimal numbers (format 'i') for output.
4672 sPRIo64 (quadfio.U):
4673 This variable, if defined, contains the string used by stdio to
4674 format 64-bit octal numbers (format 'o') for output.
4676 sPRIu64 (quadfio.U):
4677 This variable, if defined, contains the string used by stdio to
4678 format 64-bit unsigned decimal numbers (format 'u') for output.
4680 sPRIx64 (quadfio.U):
4681 This variable, if defined, contains the string used by stdio to
4682 format 64-bit hexadecimal numbers (format 'x') for output.
4684 sPRIXU64 (quadfio.U):
4685 This variable, if defined, contains the string used by stdio to
4686 format 64-bit hExADECimAl numbers (format 'X') for output.
4687 The 'U' in the name is to separate this from sPRIx64 so that even
4688 case-blind systems can see the difference.
4690 srand48_r_proto (d_srand48_r.U):
4691 This variable encodes the prototype of srand48_r.
4692 It is zero if d_srand48_r is undef, and one of the
4693 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srand48_r
4696 srandom_r_proto (d_srandom_r.U):
4697 This variable encodes the prototype of srandom_r.
4698 It is zero if d_srandom_r is undef, and one of the
4699 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srandom_r
4703 This variable holds the (possibly relative) path of the package source.
4704 It is up to the Makefile to use this variable and set VPATH accordingly
4705 to find the sources remotely. Use $pkgsrc to have an absolute path.
4707 sSCNfldbl (longdblfio.U):
4708 This variable, if defined, contains the string used by stdio to
4709 format long doubles (format 'f') for input.
4711 ssizetype (ssizetype.U):
4712 This variable defines ssizetype to be something like ssize_t,
4713 long or int. It is used by functions that return a count
4714 of bytes or an error condition. It must be a signed type.
4715 We will pick a type such that sizeof(SSize_t) == sizeof(Size_t).
4717 startperl (startperl.U):
4718 This variable contains the string to put on the front of a perl
4719 script to make sure (hopefully) that it runs with perl and not some
4720 shell. Of course, that leading line must be followed by the classical
4722 eval 'exec perl -S $0 ${1+"$@"}'
4723 if $running_under_some_shell;
4724 to guarantee perl startup should the shell execute the script. Note
4725 that this magic incatation is not understood by csh.
4727 startsh (startsh.U):
4728 This variable contains the string to put on the front of a shell
4729 script to make sure (hopefully) that it runs with sh and not some
4732 static_ext (Extensions.U):
4733 This variable holds a list of XS extension files we want to
4734 link statically into the package. It is used by Makefile.
4736 stdchar (stdchar.U):
4737 This variable conditionally defines STDCHAR to be the type of char
4738 used in stdio.h. It has the values "unsigned char" or "char".
4740 stdio_base (d_stdstdio.U):
4741 This variable defines how, given a FILE pointer, fp, to access the
4742 _base field (or equivalent) of stdio.h's FILE structure. This will
4743 be used to define the macro FILE_base(fp).
4745 stdio_bufsiz (d_stdstdio.U):
4746 This variable defines how, given a FILE pointer, fp, to determine
4747 the number of bytes store in the I/O buffer pointer to by the
4748 _base field (or equivalent) of stdio.h's FILE structure. This will
4749 be used to define the macro FILE_bufsiz(fp).
4751 stdio_cnt (d_stdstdio.U):
4752 This variable defines how, given a FILE pointer, fp, to access the
4753 _cnt field (or equivalent) of stdio.h's FILE structure. This will
4754 be used to define the macro FILE_cnt(fp).
4756 stdio_filbuf (d_stdstdio.U):
4757 This variable defines how, given a FILE pointer, fp, to tell
4758 stdio to refill its internal buffers (?). This will
4759 be used to define the macro FILE_filbuf(fp).
4761 stdio_ptr (d_stdstdio.U):
4762 This variable defines how, given a FILE pointer, fp, to access the
4763 _ptr field (or equivalent) of stdio.h's FILE structure. This will
4764 be used to define the macro FILE_ptr(fp).
4766 stdio_stream_array (stdio_streams.U):
4767 This variable tells the name of the array holding the stdio streams.
4768 Usual values include _iob, __iob, and __sF.
4770 strerror_r_proto (d_strerror_r.U):
4771 This variable encodes the prototype of strerror_r.
4772 It is zero if d_strerror_r is undef, and one of the
4773 REENTRANT_PROTO_T_ABC macros of reentr.h if d_strerror_r
4776 strings (i_string.U):
4777 This variable holds the full path of the string header that will be
4778 used. Typically /usr/include/string.h or /usr/include/strings.h.
4781 This variable is defined but not used by Configure.
4782 The value is the empty string and is not useful.
4784 subversion (patchlevel.U):
4785 The subversion level of this package.
4786 The value of subversion comes from the patchlevel.h file.
4787 In a version number such as 5.6.1, this is the "1".
4788 In patchlevel.h, this is referred to as "PERL_SUBVERSION".
4789 This is unique to perl.
4792 This variable holds the place where the manual is located on this
4793 system. It is not the place where the user wants to put his manual
4794 pages. Rather it is the place where Configure may look to find manual
4795 for unix commands (section 1 of the manual usually). See mansrc.
4798 This variable is defined but not used by Configure.
4799 The value is the empty string and is not useful.
4802 This variable is defined but not used by Configure.
4803 The value is the empty string and is not useful.
4805 targetarch (Cross.U):
4806 If cross-compiling, this variable contains the target architecture.
4807 If not, this will be empty.
4810 This variable is defined but not used by Configure.
4811 The value is the empty string and is not useful.
4814 This variable is defined but not used by Configure.
4815 The value is the empty string and is not useful.
4818 This variable is used internally by Configure to determine the
4819 full pathname (if any) of the test program. After Configure runs,
4820 the value is reset to a plain "test" and is not useful.
4822 timeincl (i_time.U):
4823 This variable holds the full path of the included time header(s).
4825 timetype (d_time.U):
4826 This variable holds the type returned by time(). It can be long,
4827 or time_t on BSD sites (in which case <sys/types.h> should be
4828 included). Anyway, the type Time_t should be used.
4830 tmpnam_r_proto (d_tmpnam_r.U):
4831 This variable encodes the prototype of tmpnam_r.
4832 It is zero if d_tmpnam_r is undef, and one of the
4833 REENTRANT_PROTO_T_ABC macros of reentr.h if d_tmpnam_r
4837 This variable contains the command used by Configure
4838 to copy to from the target host. Useful and available
4839 only during Perl build.
4840 The string ':' if not cross-compiling.
4843 This variable is used internally by Configure to determine the
4844 full pathname (if any) of the touch program. After Configure runs,
4845 the value is reset to a plain "touch" and is not useful.
4848 This variable is used internally by Configure to determine the
4849 full pathname (if any) of the tr program. After Configure runs,
4850 the value is reset to a plain "tr" and is not useful.
4853 This variable contains the value to be passed to the tr(1)
4854 command to transliterate a newline. Typical values are
4855 '\012' and '\n'. This is needed for EBCDIC systems where
4856 newline is not necessarily '\012'.
4859 This variable is defined but not used by Configure.
4860 The value is the empty string and is not useful.
4862 ttyname_r_proto (d_ttyname_r.U):
4863 This variable encodes the prototype of ttyname_r.
4864 It is zero if d_ttyname_r is undef, and one of the
4865 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ttyname_r
4869 This variable is the size of an U16 in bytes.
4872 This variable contains the C type used for Perl's U16.
4875 This variable is the size of an U32 in bytes.
4878 This variable contains the C type used for Perl's U32.
4881 This variable is the size of an U64 in bytes.
4884 This variable contains the C type used for Perl's U64.
4887 This variable is the size of an U8 in bytes.
4890 This variable contains the C type used for Perl's U8.
4893 This variable contains the format string used for printing a Uid_t.
4895 uidsign (uidsign.U):
4896 This variable contains the signedness of a uidtype.
4897 1 for unsigned, -1 for signed.
4899 uidsize (uidsize.U):
4900 This variable contains the size of a uidtype in bytes.
4902 uidtype (uidtype.U):
4903 This variable defines Uid_t to be something like uid_t, int,
4904 ushort, or whatever type is used to declare user ids in the kernel.
4907 This variable is used internally by Configure to determine the
4908 full pathname (if any) of the uname program. After Configure runs,
4909 the value is reset to a plain "uname" and is not useful.
4912 This variable is used internally by Configure to determine the
4913 full pathname (if any) of the uniq program. After Configure runs,
4914 the value is reset to a plain "uniq" and is not useful.
4916 uquadtype (quadtype.U):
4917 This variable defines Uquad_t to be something like unsigned long,
4918 unsigned int, unsigned long long, uint64_t, or whatever type is
4919 used for 64-bit integers.
4921 use5005threads (usethreads.U):
4922 This variable conditionally defines the USE_5005THREADS symbol,
4923 and indicates that Perl should be built to use the 5.005-based
4924 threading implementation. Only valid up to 5.8.x.
4926 use64bitall (use64bits.U):
4927 This variable conditionally defines the USE_64_BIT_ALL symbol,
4928 and indicates that 64-bit integer types should be used
4929 when available. The maximal possible
4930 64-bitness is employed: LP64 or ILP64, meaning that you will
4931 be able to use more than 2 gigabytes of memory. This mode is
4932 even more binary incompatible than USE_64_BIT_INT. You may not
4933 be able to run the resulting executable in a 32-bit CPU at all or
4934 you may need at least to reboot your OS to 64-bit mode.
4936 use64bitint (use64bits.U):
4937 This variable conditionally defines the USE_64_BIT_INT symbol,
4938 and indicates that 64-bit integer types should be used
4939 when available. The minimal possible 64-bitness
4940 is employed, just enough to get 64-bit integers into Perl.
4941 This may mean using for example "long longs", while your memory
4942 may still be limited to 2 gigabytes.
4944 usecrosscompile (Cross.U):
4945 This variable conditionally defines the USE_CROSS_COMPILE symbol,
4946 and indicates that Perl has been cross-compiled.
4949 This variable indicates that Perl was configured with development
4950 features enabled. This should not be done for production builds.
4953 This variable indicates if the system supports dynamic
4954 loading of some sort. See also dlsrc and dlobj.
4956 usedtrace (usedtrace.U):
4957 This variable indicates whether we are compiling with dtrace
4958 support. See also dtrace.
4960 usefaststdio (usefaststdio.U):
4961 This variable conditionally defines the USE_FAST_STDIO symbol,
4962 and indicates that Perl should be built to use 'fast stdio'.
4963 Defaults to define in Perls 5.8 and earlier, to undef later.
4965 useithreads (usethreads.U):
4966 This variable conditionally defines the USE_ITHREADS symbol,
4967 and indicates that Perl should be built to use the interpreter-based
4968 threading implementation.
4970 uselargefiles (uselfs.U):
4971 This variable conditionally defines the USE_LARGE_FILES symbol,
4972 and indicates that large file interfaces should be used when
4975 uselongdouble (uselongdbl.U):
4976 This variable conditionally defines the USE_LONG_DOUBLE symbol,
4977 and indicates that long doubles should be used when available.
4979 usemallocwrap (mallocsrc.U):
4980 This variable contains y if we are wrapping malloc to prevent
4981 integer overflow during size calculations.
4983 usemorebits (usemorebits.U):
4984 This variable conditionally defines the USE_MORE_BITS symbol,
4985 and indicates that explicit 64-bit interfaces and long doubles
4986 should be used when available.
4988 usemultiplicity (usemultiplicity.U):
4989 This variable conditionally defines the MULTIPLICITY symbol,
4990 and indicates that Perl should be built to use multiplicity.
4992 usemymalloc (mallocsrc.U):
4993 This variable contains y if the malloc that comes with this package
4994 is desired over the system's version of malloc. People often include
4995 special versions of malloc for effiency, but such versions are often
4996 less portable. See also mallocsrc and mallocobj.
4997 If this is 'y', then -lmalloc is removed from $libs.
5000 This variable contains 'true' or 'false' depending whether the
5001 nm extraction is wanted or not.
5003 useopcode (Extensions.U):
5004 This variable holds either 'true' or 'false' to indicate
5005 whether the Opcode extension should be used. The sole
5006 use for this currently is to allow an easy mechanism
5007 for users to skip the Opcode extension from the Configure
5010 useperlio (useperlio.U):
5011 This variable conditionally defines the USE_PERLIO symbol,
5012 and indicates that the PerlIO abstraction should be
5015 useposix (Extensions.U):
5016 This variable holds either 'true' or 'false' to indicate
5017 whether the POSIX extension should be used. The sole
5018 use for this currently is to allow an easy mechanism
5019 for hints files to indicate that POSIX will not compile
5020 on a particular system.
5022 usereentrant (usethreads.U):
5023 This variable conditionally defines the USE_REENTRANT_API symbol,
5024 which indicates that the thread code may try to use the various
5025 _r versions of library functions. This is only potentially
5026 meaningful if usethreads is set and is very experimental, it is
5027 not even prompted for.
5029 userelocatableinc (bin.U):
5030 This variable is set to true to indicate that perl should relocate
5031 @INC entries at runtime based on the path to the perl binary.
5032 Any @INC paths starting ".../" are relocated relative to the directory
5033 containing the perl binary, and a logical cleanup of the path is then
5034 made around the join point (removing "dir/../" pairs)
5037 This variable is set to true when the user agrees to use sfio.
5038 It is set to false when sfio is not available or when the user
5039 explicitely requests not to use sfio. It is here primarily so
5040 that command-line settings can override the auto-detection of
5041 d_sfio without running into a "WHOA THERE".
5043 useshrplib (libperl.U):
5044 This variable is set to 'true' if the user wishes
5045 to build a shared libperl, and 'false' otherwise.
5047 usesitecustomize (d_sitecustomize.U):
5048 This variable is set to true when the user requires a mechanism that
5049 allows the sysadmin to add entries to @INC at runtime. This variable
5050 being set, makes perl run '$sitelib/sitecustomize.pl' at startup.
5052 usesocks (usesocks.U):
5053 This variable conditionally defines the USE_SOCKS symbol,
5054 and indicates that Perl should be built to use SOCKS.
5056 usethreads (usethreads.U):
5057 This variable conditionally defines the USE_THREADS symbol,
5058 and indicates that Perl should be built to use threads.
5060 usevendorprefix (vendorprefix.U):
5061 This variable tells whether the vendorprefix
5062 and consequently other vendor* paths are in use.
5064 usevfork (d_vfork.U):
5065 This variable is set to true when the user accepts to use vfork.
5066 It is set to false when no vfork is available or when the user
5067 explicitely requests not to use vfork.
5070 This variable holds the path of the include files, which is
5071 usually /usr/include. It is mainly used by other Configure units.
5074 This variable is defined but not used by Configure.
5075 The value is the empty string and is not useful.
5077 uvoformat (perlxvf.U):
5078 This variable contains the format string used for printing
5079 a Perl UV as an unsigned octal integer.
5082 This variable is the size of a UV in bytes.
5085 This variable contains the C type used for Perl's UV.
5087 uvuformat (perlxvf.U):
5088 This variable contains the format string used for printing
5089 a Perl UV as an unsigned decimal integer.
5091 uvxformat (perlxvf.U):
5092 This variable contains the format string used for printing
5093 a Perl UV as an unsigned hexadecimal integer in lowercase abcdef.
5095 uvXUformat (perlxvf.U):
5096 This variable contains the format string used for printing
5097 a Perl UV as an unsigned hexadecimal integer in uppercase ABCDEF.
5099 vendorarch (vendorarch.U):
5100 This variable contains the value of the PERL_VENDORARCH symbol.
5101 It may have a ~ on the front.
5102 The standard distribution will put nothing in this directory.
5103 Vendors who distribute perl may wish to place their own
5104 architecture-dependent modules and extensions in this directory with
5105 MakeMaker Makefile.PL INSTALLDIRS=vendor
5106 or equivalent. See INSTALL for details.
5108 vendorarchexp (vendorarch.U):
5109 This variable is the ~name expanded version of vendorarch, so that you
5110 may use it directly in Makefiles or shell scripts.
5112 vendorbin (vendorbin.U):
5113 This variable contains the eventual value of the VENDORBIN symbol.
5114 It may have a ~ on the front.
5115 The standard distribution will put nothing in this directory.
5116 Vendors who distribute perl may wish to place additional
5117 binaries in this directory with
5118 MakeMaker Makefile.PL INSTALLDIRS=vendor
5119 or equivalent. See INSTALL for details.
5121 vendorbinexp (vendorbin.U):
5122 This variable is the ~name expanded version of vendorbin, so that you
5123 may use it directly in Makefiles or shell scripts.
5125 vendorhtml1dir (vendorhtml1dir.U):
5126 This variable contains the name of the directory for html
5127 pages. It may have a ~ on the front.
5128 The standard distribution will put nothing in this directory.
5129 Vendors who distribute perl may wish to place their own
5130 html pages in this directory with
5131 MakeMaker Makefile.PL INSTALLDIRS=vendor
5132 or equivalent. See INSTALL for details.
5134 vendorhtml1direxp (vendorhtml1dir.U):
5135 This variable is the ~name expanded version of vendorhtml1dir, so that you
5136 may use it directly in Makefiles or shell scripts.
5138 vendorhtml3dir (vendorhtml3dir.U):
5139 This variable contains the name of the directory for html
5140 library pages. It may have a ~ on the front.
5141 The standard distribution will put nothing in this directory.
5142 Vendors who distribute perl may wish to place their own
5143 html pages for modules and extensions in this directory with
5144 MakeMaker Makefile.PL INSTALLDIRS=vendor
5145 or equivalent. See INSTALL for details.
5147 vendorhtml3direxp (vendorhtml3dir.U):
5148 This variable is the ~name expanded version of vendorhtml3dir, so that you
5149 may use it directly in Makefiles or shell scripts.
5151 vendorlib (vendorlib.U):
5152 This variable contains the eventual value of the VENDORLIB symbol,
5153 which is the name of the private library for this package.
5154 The standard distribution will put nothing in this directory.
5155 Vendors who distribute perl may wish to place their own
5156 modules in this directory with
5157 MakeMaker Makefile.PL INSTALLDIRS=vendor
5158 or equivalent. See INSTALL for details.
5160 vendorlib_stem (vendorlib.U):
5161 This variable is $vendorlibexp with any trailing version-specific component
5162 removed. The elements in inc_version_list (inc_version_list.U) can
5163 be tacked onto this variable to generate a list of directories to search.
5165 vendorlibexp (vendorlib.U):
5166 This variable is the ~name expanded version of vendorlib, so that you
5167 may use it directly in Makefiles or shell scripts.
5169 vendorman1dir (vendorman1dir.U):
5170 This variable contains the name of the directory for man1
5171 pages. It may have a ~ on the front.
5172 The standard distribution will put nothing in this directory.
5173 Vendors who distribute perl may wish to place their own
5174 man1 pages in this directory with
5175 MakeMaker Makefile.PL INSTALLDIRS=vendor
5176 or equivalent. See INSTALL for details.
5178 vendorman1direxp (vendorman1dir.U):
5179 This variable is the ~name expanded version of vendorman1dir, so that you
5180 may use it directly in Makefiles or shell scripts.
5182 vendorman3dir (vendorman3dir.U):
5183 This variable contains the name of the directory for man3
5184 pages. It may have a ~ on the front.
5185 The standard distribution will put nothing in this directory.
5186 Vendors who distribute perl may wish to place their own
5187 man3 pages in this directory with
5188 MakeMaker Makefile.PL INSTALLDIRS=vendor
5189 or equivalent. See INSTALL for details.
5191 vendorman3direxp (vendorman3dir.U):
5192 This variable is the ~name expanded version of vendorman3dir, so that you
5193 may use it directly in Makefiles or shell scripts.
5195 vendorprefix (vendorprefix.U):
5196 This variable holds the full absolute path of the directory below
5197 which the vendor will install add-on packages.
5198 See INSTALL for usage and examples.
5200 vendorprefixexp (vendorprefix.U):
5201 This variable holds the full absolute path of the directory below
5202 which the vendor will install add-on packages. Derived from vendorprefix.
5204 vendorscript (vendorscript.U):
5205 This variable contains the eventual value of the VENDORSCRIPT symbol.
5206 It may have a ~ on the front.
5207 The standard distribution will put nothing in this directory.
5208 Vendors who distribute perl may wish to place additional
5209 executable scripts in this directory with
5210 MakeMaker Makefile.PL INSTALLDIRS=vendor
5211 or equivalent. See INSTALL for details.
5213 vendorscriptexp (vendorscript.U):
5214 This variable is the ~name expanded version of vendorscript, so that you
5215 may use it directly in Makefiles or shell scripts.
5217 version (patchlevel.U):
5218 The full version number of this package, such as 5.6.1 (or 5_6_1).
5219 This combines revision, patchlevel, and subversion to get the
5220 full version number, including any possible subversions.
5221 This is suitable for use as a directory name, and hence is
5222 filesystem dependent.
5224 version_patchlevel_string (patchlevel.U):
5225 This is a string combining version, subversion and
5226 perl_patchlevel (if perl_patchlevel is non-zero).
5227 It is typically something like
5228 'version 7 subversion 1' or
5229 'version 7 subversion 1 patchlevel 11224'
5230 It is computed here to avoid duplication of code in myconfig.SH
5233 versiononly (versiononly.U):
5234 If set, this symbol indicates that only the version-specific
5235 components of a perl installation should be installed.
5236 This may be useful for making a test installation of a new
5237 version without disturbing the existing installation.
5238 Setting versiononly is equivalent to setting installperl's -v option.
5239 In particular, the non-versioned scripts and programs such as
5240 a2p, c2ph, h2xs, pod2*, and perldoc are not installed
5241 (see INSTALL for a more complete list). Nor are the man
5243 Usually, this is undef.
5246 This variable is defined but not used by Configure.
5247 The value is the empty string and is not useful.
5249 voidflags (voidflags.U):
5250 This variable contains the eventual value of the VOIDFLAGS symbol,
5251 which indicates how much support of the void type is given by this
5252 compiler. See VOIDFLAGS for more info.
5255 This variable holds extra path (space-separated) used to find
5256 libraries on this platform, for example CPU-specific libraries
5257 (on multi-CPU platforms) may be listed here.
5260 This variable holds the name of the compiler compiler we
5261 want to use in the Makefile. It can be yacc, byacc, or bison -y.
5264 This variable contains any additional yacc flags desired by the
5265 user. It is up to the Makefile to use this.
5268 This variable is defined but not used by Configure.
5269 The value is the empty string and is not useful.
5272 This variable is used internally by Configure to determine the
5273 full pathname (if any) of the zip program. After Configure runs,
5274 the value is reset to a plain "zip" and is not useful.