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 a plain '' 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 is the same as the bin variable, but is filename expanded at
155 configuration time, for use in your makefiles.
158 This variable is used internally by Configure to determine the
159 full pathname (if any) of the bison program. After Configure runs,
160 the value is reset to a plain "bison" and is not useful.
163 This variable is used internally by Configure to determine the
164 full pathname (if any) of the byacc program. After Configure runs,
165 the value is reset to a plain "byacc" and is not useful.
167 byteorder (byteorder.U):
168 This variable holds the byte order in a UV. In the following,
169 larger digits indicate more significance. The variable byteorder
170 is either 4321 on a big-endian machine, or 1234 on a little-endian,
171 or 87654321 on a Cray ... or 3412 with weird order !
174 This variable contains the \c string if that is what causes the echo
175 command to suppress newline. Otherwise it is null. Correct usage is
176 $echo $n "prompt for a question: $c".
178 castflags (d_castneg.U):
179 This variable contains a flag that precise difficulties the
180 compiler has casting odd floating values to unsigned long:
182 1 = couldn't cast < 0
183 2 = couldn't cast >= 0x80000000
184 4 = couldn't cast in argument expression list
187 This variable is used internally by Configure to determine the
188 full pathname (if any) of the cat program. After Configure runs,
189 the value is reset to a plain "cat" and is not useful.
192 This variable holds the name of a command to execute a C compiler which
193 can resolve multiple global references that happen to have the same
194 name. Usual values are 'cc' and 'gcc'.
195 Fervent ANSI compilers may be called 'c89'. AIX has xlc.
197 cccdlflags (dlsrc.U):
198 This variable contains any special flags that might need to be
199 passed with 'cc -c' to compile modules to be used to create a shared
200 library that will be used for dynamic loading. For hpux, this
201 should be +z. It is up to the makefile to use it.
204 This variable contains any special flags that might need to be
205 passed to cc to link with a shared library for dynamic loading.
206 It is up to the makefile to use it. For sunos 4.1, it should
210 This variable contains any additional C compiler flags desired by
211 the user. It is up to the Makefile to use this.
213 ccflags_uselargefiles (uselfs.U):
214 This variable contains the compiler flags needed by large file builds
215 and added to ccflags by hints files.
218 This can set either by hints files or by Configure. If using
219 gcc, this is gcc, and if not, usually equal to cc, unimpressive, no?
220 Some platforms, however, make good use of this by storing the
221 flavor of the C compiler being used here. For example if using
222 the Sun WorkShop suite, ccname will be 'workshop'.
224 ccsymbols (Cppsym.U):
225 The variable contains the symbols defined by the C compiler alone.
226 The symbols defined by cpp or by cc when it calls cpp are not in
227 this list, see cppsymbols and cppccsymbols.
228 The list is a space-separated list of symbol=value tokens.
230 ccversion (Checkcc.U):
231 This can set either by hints files or by Configure. If using
232 a (non-gcc) vendor cc, this variable may contain a version for
236 Login name of the person who ran the Configure script and answered the
237 questions. This is used to tag both config.sh and config_h.SH.
239 cf_email (cf_email.U):
240 Electronic mail address of the person who ran Configure. This can be
241 used by units that require the user's e-mail, like MailList.U.
244 Holds the output of the "date" command when the configuration file was
245 produced. This is used to tag both config.sh and config_h.SH.
248 This variable is defined but not used by Configure.
249 The value is a plain '' and is not useful.
252 This variable is used internally by Configure to determine the
253 full pathname (if any) of the chmod program. After Configure runs,
254 the value is reset to a plain "chmod" and is not useful.
257 This variable is defined but not used by Configure.
258 The value is a plain '' and is not useful.
260 clocktype (d_times.U):
261 This variable holds the type returned by times(). It can be long,
262 or clock_t on BSD sites (in which case <sys/types.h> should be
266 This variable is used internally by Configure to determine the
267 full pathname (if any) of the comm program. After Configure runs,
268 the value is reset to a plain "comm" and is not useful.
271 This variable is defined but not used by Configure.
272 The value is a plain '' and is not useful.
274 contains (contains.U):
275 This variable holds the command to do a grep with a proper return
276 status. On most sane systems it is simply "grep". On insane systems
277 it is a grep followed by a cat followed by a test. This variable
278 is primarily for the use of other Configure units.
281 This variable is used internally by Configure to determine the
282 full pathname (if any) of the cp program. After Configure runs,
283 the value is reset to a plain "cp" and is not useful.
286 This variable is defined but not used by Configure.
287 The value is a plain '' and is not useful.
290 This variable is used internally by Configure to determine the
291 full pathname (if any) of the cpp program. After Configure runs,
292 the value is reset to a plain "cpp" and is not useful.
294 cpp_stuff (cpp_stuff.U):
295 This variable contains an identification of the concatenation mechanism
296 used by the C preprocessor.
298 cppccsymbols (Cppsym.U):
299 The variable contains the symbols defined by the C compiler
300 when it calls cpp. The symbols defined by the cc alone or cpp
301 alone are not in this list, see ccsymbols and cppsymbols.
302 The list is a space-separated list of symbol=value tokens.
304 cppflags (ccflags.U):
305 This variable holds the flags that will be passed to the C pre-
306 processor. It is up to the Makefile to use it.
308 cpplast (cppstdin.U):
309 This variable has the same functionality as cppminus, only it applies
310 to cpprun and not cppstdin.
312 cppminus (cppstdin.U):
313 This variable contains the second part of the string which will invoke
314 the C preprocessor on the standard input and produce to standard
315 output. This variable will have the value "-" if cppstdin needs
316 a minus to specify standard input, otherwise the value is "".
319 This variable contains the command which will invoke a C preprocessor
320 on standard input and put the output to stdout. It is guaranteed not
321 to be a wrapper and may be a null string if no preprocessor can be
322 made directly available. This preprocessor might be different from the
323 one used by the C compiler. Don't forget to append cpplast after the
324 preprocessor options.
326 cppstdin (cppstdin.U):
327 This variable contains the command which will invoke the C
328 preprocessor on standard input and put the output to stdout.
329 It is primarily used by other Configure units that ask about
330 preprocessor symbols.
332 cppsymbols (Cppsym.U):
333 The variable contains the symbols defined by the C preprocessor
334 alone. The symbols defined by cc or by cc when it calls cpp are
335 not in this list, see ccsymbols and cppccsymbols.
336 The list is a space-separated list of symbol=value tokens.
338 crypt_r_proto (d_crypt_r.U):
339 This variable encodes the prototype of crypt_r.
340 It is zero if d_crypt_r is undef, and one of the
341 REENTRANT_PROTO_T_ABC macros of reentr.h if d_crypt_r
344 cryptlib (d_crypt.U):
345 This variable holds -lcrypt or the path to a libcrypt.a archive if
346 the crypt() function is not defined in the standard C library. It is
347 up to the Makefile to use this.
350 This variable is used internally by Configure to determine the
351 full pathname (if any) of the csh program. After Configure runs,
352 the value is reset to a plain "csh" and is not useful.
354 ctermid_r_proto (d_ctermid_r.U):
355 This variable encodes the prototype of ctermid_r.
356 It is zero if d_ctermid_r is undef, and one of the
357 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ctermid_r
360 ctime_r_proto (d_ctime_r.U):
361 This variable encodes the prototype of ctime_r.
362 It is zero if d_ctime_r is undef, and one of the
363 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ctime_r
366 d__fwalk (d__fwalk.U):
367 This variable conditionally defines HAS__FWALK if _fwalk() is
368 available to apply a function to all the file handles.
370 d_access (d_access.U):
371 This variable conditionally defines HAS_ACCESS if the access() system
372 call is available to check for access permissions using real IDs.
374 d_accessx (d_accessx.U):
375 This variable conditionally defines the HAS_ACCESSX symbol, which
376 indicates to the C program that the accessx() routine is available.
379 This variable conditionally defines the HAS_AINTL symbol, which
380 indicates to the C program that the aintl() routine is available.
381 If copysignl is also present we can emulate modfl.
384 This variable conditionally defines the HAS_ALARM symbol, which
385 indicates to the C program that the alarm() routine is available.
387 d_archlib (archlib.U):
388 This variable conditionally defines ARCHLIB to hold the pathname
389 of architecture-dependent library files for $package. If
390 $archlib is the same as $privlib, then this is set to undef.
392 d_asctime64 (d_timefuncs64.U):
393 This variable conditionally defines the HAS_ASCTIME64 symbol, which
394 indicates to the C program that the asctime64 () routine is available.
396 d_asctime_r (d_asctime_r.U):
397 This variable conditionally defines the HAS_ASCTIME_R symbol,
398 which indicates to the C program that the asctime_r()
399 routine is available.
402 This variable conditionally defines the HAS_ATOLF symbol, which
403 indicates to the C program that the atolf() routine is available.
406 This variable conditionally defines the HAS_ATOLL symbol, which
407 indicates to the C program that the atoll() routine is available.
409 d_attribute_format (d_attribut.U):
410 This variable conditionally defines HASATTRIBUTE_FORMAT, which
411 indicates the C compiler can check for printf-like formats.
413 d_attribute_malloc (d_attribut.U):
414 This variable conditionally defines HASATTRIBUTE_MALLOC, which
415 indicates the C compiler can understand functions as having
416 malloc-like semantics.
418 d_attribute_nonnull (d_attribut.U):
419 This variable conditionally defines HASATTRIBUTE_NONNULL, which
420 indicates that the C compiler can know that certain arguments
421 must not be NULL, and will check accordingly at compile time.
423 d_attribute_noreturn (d_attribut.U):
424 This variable conditionally defines HASATTRIBUTE_NORETURN, which
425 indicates that the C compiler can know that certain functions
426 are guaranteed never to return.
428 d_attribute_pure (d_attribut.U):
429 This variable conditionally defines HASATTRIBUTE_PURE, which
430 indicates that the C compiler can know that certain functions
431 are "pure" functions, meaning that they have no side effects, and
432 only rely on function input and/or global data for their results.
434 d_attribute_unused (d_attribut.U):
435 This variable conditionally defines HASATTRIBUTE_UNUSED, which
436 indicates that the C compiler can know that certain variables
437 and arguments may not always be used, and to not throw warnings
438 if they don't get used.
440 d_attribute_warn_unused_result (d_attribut.U):
441 This variable conditionally defines
442 HASATTRIBUTE_WARN_UNUSED_RESULT, which indicates that the C
443 compiler can know that certain functions have a return values
444 that must not be ignored, such as malloc() or open().
447 This variable conditionally defines the HAS_BCMP symbol if
448 the bcmp() routine is available to compare strings.
451 This variable conditionally defines the HAS_BCOPY symbol if
452 the bcopy() routine is available to copy strings.
455 This symbol conditionally defines the symbol BSD when running on a
458 d_bsdgetpgrp (d_getpgrp.U):
459 This variable conditionally defines USE_BSD_GETPGRP if
460 getpgrp needs one arguments whereas USG one needs none.
462 d_bsdsetpgrp (d_setpgrp.U):
463 This variable conditionally defines USE_BSD_SETPGRP if
464 setpgrp needs two arguments whereas USG one needs none.
465 See also d_setpgid for a POSIX interface.
467 d_builtin_choose_expr (d_builtin.U):
468 This conditionally defines HAS_BUILTIN_CHOOSE_EXPR, which
469 indicates that the compiler supports __builtin_choose_expr(x,y,z).
470 This built-in function is analogous to the "x?y:z" operator in C,
471 except that the expression returned has its type unaltered by
472 promotion rules. Also, the built-in function does not evaluate
473 the expression that was not chosen.
475 d_builtin_expect (d_builtin.U):
476 This conditionally defines HAS_BUILTIN_EXPECT, which indicates
477 that the compiler supports __builtin_expect(exp,c). You may use
478 __builtin_expect to provide the compiler with branch prediction
482 This variable conditionally defines the HAS_BZERO symbol if
483 the bzero() routine is available to set memory to 0.
485 d_c99_variadic_macros (d_c99_variadic.U):
486 This variable conditionally defines the HAS_C99_VARIADIC_MACROS
487 symbol, which indicates to the C program that C99 variadic macros
490 d_casti32 (d_casti32.U):
491 This variable conditionally defines CASTI32, which indicates
492 whether the C compiler can cast large floats to 32-bit ints.
494 d_castneg (d_castneg.U):
495 This variable conditionally defines CASTNEG, which indicates
496 wether the C compiler can cast negative float to unsigned.
498 d_charvspr (d_vprintf.U):
499 This variable conditionally defines CHARVSPRINTF if this system
500 has vsprintf returning type (char*). The trend seems to be to
501 declare it as "int vsprintf()".
504 This variable conditionally defines the HAS_CHOWN symbol, which
505 indicates to the C program that the chown() routine is available.
507 d_chroot (d_chroot.U):
508 This variable conditionally defines the HAS_CHROOT symbol, which
509 indicates to the C program that the chroot() routine is available.
511 d_chsize (d_chsize.U):
512 This variable conditionally defines the CHSIZE symbol, which
513 indicates to the C program that the chsize() routine is available
514 to truncate files. You might need a -lx to get this routine.
517 This variable conditionally defines the HAS_CLASS symbol, which
518 indicates to the C program that the class() routine is available.
520 d_clearenv (d_clearenv.U):
521 This variable conditionally defines the HAS_CLEARENV symbol, which
522 indicates to the C program that the clearenv () routine is available.
524 d_closedir (d_closedir.U):
525 This variable conditionally defines HAS_CLOSEDIR if closedir() is
528 d_cmsghdr_s (d_cmsghdr_s.U):
529 This variable conditionally defines the HAS_STRUCT_CMSGHDR symbol,
530 which indicates that the struct cmsghdr is supported.
533 This variable conditionally defines the HASCONST symbol, which
534 indicates to the C program that this C compiler knows about the
537 d_copysignl (d_copysignl.U):
538 This variable conditionally defines the HAS_COPYSIGNL symbol, which
539 indicates to the C program that the copysignl() routine is available.
540 If aintl is also present we can emulate modfl.
542 d_cplusplus (d_cplusplus.U):
543 This variable conditionally defines the USE_CPLUSPLUS symbol, which
544 indicates that a C++ compiler was used to compiled Perl and will be
545 used to compile extensions.
548 This variable conditionally defines the CRYPT symbol, which
549 indicates to the C program that the crypt() routine is available
550 to encrypt passwords and the like.
552 d_crypt_r (d_crypt_r.U):
553 This variable conditionally defines the HAS_CRYPT_R symbol,
554 which indicates to the C program that the crypt_r()
555 routine is available.
558 This variable conditionally defines the CSH symbol, which
559 indicates to the C program that the C-shell exists.
561 d_ctermid (d_ctermid.U):
562 This variable conditionally defines CTERMID if ctermid() is
563 available to generate filename for terminal.
565 d_ctermid_r (d_ctermid_r.U):
566 This variable conditionally defines the HAS_CTERMID_R symbol,
567 which indicates to the C program that the ctermid_r()
568 routine is available.
570 d_ctime64 (d_timefuncs64.U):
571 This variable conditionally defines the HAS_CTIME64 symbol, which
572 indicates to the C program that the ctime64 () routine is available.
574 d_ctime_r (d_ctime_r.U):
575 This variable conditionally defines the HAS_CTIME_R symbol,
576 which indicates to the C program that the ctime_r()
577 routine is available.
579 d_cuserid (d_cuserid.U):
580 This variable conditionally defines the HAS_CUSERID symbol, which
581 indicates to the C program that the cuserid() routine is available
582 to get character login names.
584 d_dbl_dig (d_dbl_dig.U):
585 This variable conditionally defines d_dbl_dig if this system's
586 header files provide DBL_DIG, which is the number of significant
587 digits in a double precision number.
589 d_dbminitproto (d_dbminitproto.U):
590 This variable conditionally defines the HAS_DBMINIT_PROTO symbol,
591 which indicates to the C program that the system provides
592 a prototype for the dbminit() function. Otherwise, it is
593 up to the program to supply one.
595 d_difftime (d_difftime.U):
596 This variable conditionally defines the HAS_DIFFTIME symbol, which
597 indicates to the C program that the difftime() routine is available.
599 d_difftime64 (d_timefuncs64.U):
600 This variable conditionally defines the HAS_DIFFTIME64 symbol, which
601 indicates to the C program that the difftime64 () routine is available.
603 d_dir_dd_fd (d_dir_dd_fd.U):
604 This variable conditionally defines the HAS_DIR_DD_FD symbol, which
605 indicates that the DIR directory stream type contains a member
606 variable called dd_fd.
609 This variable conditionally defines the HAS_DIRFD constant,
610 which indicates to the C program that dirfd() is available
611 to return the file descriptor of a directory stream.
613 d_dirnamlen (i_dirent.U):
614 This variable conditionally defines DIRNAMLEN, which indicates
615 to the C program that the length of directory entry names is
616 provided by a d_namelen field.
618 d_dlerror (d_dlerror.U):
619 This variable conditionally defines the HAS_DLERROR symbol, which
620 indicates to the C program that the dlerror() routine is available.
622 d_dlopen (d_dlopen.U):
623 This variable conditionally defines the HAS_DLOPEN symbol, which
624 indicates to the C program that the dlopen() routine is available.
626 d_dlsymun (d_dlsymun.U):
627 This variable conditionally defines DLSYM_NEEDS_UNDERSCORE, which
628 indicates that we need to prepend an underscore to the symbol
629 name before calling dlsym().
631 d_dosuid (d_dosuid.U):
632 This variable conditionally defines the symbol DOSUID, which
633 tells the C program that it should insert setuid emulation code
634 on hosts which have setuid #! scripts disabled.
636 d_drand48_r (d_drand48_r.U):
637 This variable conditionally defines the HAS_DRAND48_R symbol,
638 which indicates to the C program that the drand48_r()
639 routine is available.
641 d_drand48proto (d_drand48proto.U):
642 This variable conditionally defines the HAS_DRAND48_PROTO symbol,
643 which indicates to the C program that the system provides
644 a prototype for the drand48() function. Otherwise, it is
645 up to the program to supply one.
648 This variable conditionally defines HAS_DUP2 if dup2() is
649 available to duplicate file descriptors.
651 d_eaccess (d_eaccess.U):
652 This variable conditionally defines the HAS_EACCESS symbol, which
653 indicates to the C program that the eaccess() routine is available.
655 d_endgrent (d_endgrent.U):
656 This variable conditionally defines the HAS_ENDGRENT symbol, which
657 indicates to the C program that the endgrent() routine is available
658 for sequential access of the group database.
660 d_endgrent_r (d_endgrent_r.U):
661 This variable conditionally defines the HAS_ENDGRENT_R symbol,
662 which indicates to the C program that the endgrent_r()
663 routine is available.
665 d_endhent (d_endhent.U):
666 This variable conditionally defines HAS_ENDHOSTENT if endhostent() is
667 available to close whatever was being used for host queries.
669 d_endhostent_r (d_endhostent_r.U):
670 This variable conditionally defines the HAS_ENDHOSTENT_R symbol,
671 which indicates to the C program that the endhostent_r()
672 routine is available.
674 d_endnent (d_endnent.U):
675 This variable conditionally defines HAS_ENDNETENT if endnetent() is
676 available to close whatever was being used for network queries.
678 d_endnetent_r (d_endnetent_r.U):
679 This variable conditionally defines the HAS_ENDNETENT_R symbol,
680 which indicates to the C program that the endnetent_r()
681 routine is available.
683 d_endpent (d_endpent.U):
684 This variable conditionally defines HAS_ENDPROTOENT if endprotoent() is
685 available to close whatever was being used for protocol queries.
687 d_endprotoent_r (d_endprotoent_r.U):
688 This variable conditionally defines the HAS_ENDPROTOENT_R symbol,
689 which indicates to the C program that the endprotoent_r()
690 routine is available.
692 d_endpwent (d_endpwent.U):
693 This variable conditionally defines the HAS_ENDPWENT symbol, which
694 indicates to the C program that the endpwent() routine is available
695 for sequential access of the passwd database.
697 d_endpwent_r (d_endpwent_r.U):
698 This variable conditionally defines the HAS_ENDPWENT_R symbol,
699 which indicates to the C program that the endpwent_r()
700 routine is available.
702 d_endsent (d_endsent.U):
703 This variable conditionally defines HAS_ENDSERVENT if endservent() is
704 available to close whatever was being used for service queries.
706 d_endservent_r (d_endservent_r.U):
707 This variable conditionally defines the HAS_ENDSERVENT_R symbol,
708 which indicates to the C program that the endservent_r()
709 routine is available.
711 d_eofnblk (nblock_io.U):
712 This variable conditionally defines EOF_NONBLOCK if EOF can be seen
713 when reading from a non-blocking I/O source.
716 This variable conditionally defines the symbols EUNICE and VAX, which
717 alerts the C program that it must deal with ideosyncracies of VMS.
719 d_faststdio (d_faststdio.U):
720 This variable conditionally defines the HAS_FAST_STDIO symbol,
721 which indicates to the C program that the "fast stdio" is available
722 to manipulate the stdio buffers directly.
724 d_fchdir (d_fchdir.U):
725 This variable conditionally defines the HAS_FCHDIR symbol, which
726 indicates to the C program that the fchdir() routine is available.
728 d_fchmod (d_fchmod.U):
729 This variable conditionally defines the HAS_FCHMOD symbol, which
730 indicates to the C program that the fchmod() routine is available
731 to change mode of opened files.
733 d_fchown (d_fchown.U):
734 This variable conditionally defines the HAS_FCHOWN symbol, which
735 indicates to the C program that the fchown() routine is available
736 to change ownership of opened files.
739 This variable conditionally defines the HAS_FCNTL symbol, and indicates
740 whether the fcntl() function exists
742 d_fcntl_can_lock (d_fcntl_can_lock.U):
743 This variable conditionally defines the FCNTL_CAN_LOCK symbol
744 and indicates whether file locking with fcntl() works.
746 d_fd_macros (d_fd_set.U):
747 This variable contains the eventual value of the HAS_FD_MACROS symbol,
748 which indicates if your C compiler knows about the macros which
749 manipulate an fd_set.
751 d_fd_set (d_fd_set.U):
752 This variable contains the eventual value of the HAS_FD_SET symbol,
753 which indicates if your C compiler knows about the fd_set typedef.
755 d_fds_bits (d_fd_set.U):
756 This variable contains the eventual value of the HAS_FDS_BITS symbol,
757 which indicates if your fd_set typedef contains the fds_bits member.
758 If you have an fd_set typedef, but the dweebs who installed it did
759 a half-fast job and neglected to provide the macros to manipulate
760 an fd_set, HAS_FDS_BITS will let us know how to fix the gaffe.
762 d_fgetpos (d_fgetpos.U):
763 This variable conditionally defines HAS_FGETPOS if fgetpos() is
764 available to get the file position indicator.
766 d_finite (d_finite.U):
767 This variable conditionally defines the HAS_FINITE symbol, which
768 indicates to the C program that the finite() routine is available.
770 d_finitel (d_finitel.U):
771 This variable conditionally defines the HAS_FINITEL symbol, which
772 indicates to the C program that the finitel() routine is available.
774 d_flexfnam (d_flexfnam.U):
775 This variable conditionally defines the FLEXFILENAMES symbol, which
776 indicates that the system supports filenames longer than 14 characters.
779 This variable conditionally defines HAS_FLOCK if flock() is
780 available to do file locking.
782 d_flockproto (d_flockproto.U):
783 This variable conditionally defines the HAS_FLOCK_PROTO symbol,
784 which indicates to the C program that the system provides
785 a prototype for the flock() function. Otherwise, it is
786 up to the program to supply one.
789 This variable conditionally defines the HAS_FORK symbol, which
790 indicates to the C program that the fork() routine is available.
792 d_fp_class (d_fp_class.U):
793 This variable conditionally defines the HAS_FP_CLASS symbol, which
794 indicates to the C program that the fp_class() routine is available.
796 d_fpathconf (d_pathconf.U):
797 This variable conditionally defines the HAS_FPATHCONF symbol, which
798 indicates to the C program that the pathconf() routine is available
799 to determine file-system related limits and options associated
800 with a given open file descriptor.
802 d_fpclass (d_fpclass.U):
803 This variable conditionally defines the HAS_FPCLASS symbol, which
804 indicates to the C program that the fpclass() routine is available.
806 d_fpclassify (d_fpclassify.U):
807 This variable conditionally defines the HAS_FPCLASSIFY symbol, which
808 indicates to the C program that the fpclassify() routine is available.
810 d_fpclassl (d_fpclassl.U):
811 This variable conditionally defines the HAS_FPCLASSL symbol, which
812 indicates to the C program that the fpclassl() routine is available.
814 d_fpos64_t (d_fpos64_t.U):
815 This symbol will be defined if the C compiler supports fpos64_t.
817 d_frexpl (d_frexpl.U):
818 This variable conditionally defines the HAS_FREXPL symbol, which
819 indicates to the C program that the frexpl() routine is available.
821 d_fs_data_s (d_fs_data_s.U):
822 This variable conditionally defines the HAS_STRUCT_FS_DATA symbol,
823 which indicates that the struct fs_data is supported.
825 d_fseeko (d_fseeko.U):
826 This variable conditionally defines the HAS_FSEEKO symbol, which
827 indicates to the C program that the fseeko() routine is available.
829 d_fsetpos (d_fsetpos.U):
830 This variable conditionally defines HAS_FSETPOS if fsetpos() is
831 available to set the file position indicator.
833 d_fstatfs (d_fstatfs.U):
834 This variable conditionally defines the HAS_FSTATFS symbol, which
835 indicates to the C program that the fstatfs() routine is available.
837 d_fstatvfs (d_statvfs.U):
838 This variable conditionally defines the HAS_FSTATVFS symbol, which
839 indicates to the C program that the fstatvfs() routine is available.
842 This variable conditionally defines the HAS_FSYNC symbol, which
843 indicates to the C program that the fsync() routine is available.
845 d_ftello (d_ftello.U):
846 This variable conditionally defines the HAS_FTELLO symbol, which
847 indicates to the C program that the ftello() routine is available.
850 This variable conditionally defines the HAS_FTIME symbol, which indicates
851 that the ftime() routine exists. The ftime() routine is basically
852 a sub-second accuracy clock.
854 d_futimes (d_futimes.U):
855 This variable conditionally defines the HAS_FUTIMES symbol, which
856 indicates to the C program that the futimes() routine is available.
858 d_Gconvert (d_gconvert.U):
859 This variable holds what Gconvert is defined as to convert
860 floating point numbers into strings. By default, Configure
861 sets this macro to use the first of gconvert, gcvt, or sprintf
862 that pass sprintf-%g-like behaviour tests. If perl is using
863 long doubles, the macro uses the first of the following
864 functions that pass Configure's tests: qgcvt, sprintf (if
865 Configure knows how to make sprintf format long doubles--see
866 sPRIgldbl), gconvert, gcvt, and sprintf (casting to double).
867 The gconvert_preference and gconvert_ld_preference variables
868 can be used to alter Configure's preferences, for doubles and
869 long doubles, respectively. If present, they contain a
870 space-separated list of one or more of the above function
871 names in the order they should be tried.
873 d_Gconvert may be set to override Configure with a platform-
874 specific function. If this function expects a double, a
875 different value may need to be set by the uselongdouble.cbu
876 call-back unit so that long doubles can be formatted without
879 d_getcwd (d_getcwd.U):
880 This variable conditionally defines the HAS_GETCWD symbol, which
881 indicates to the C program that the getcwd() routine is available
882 to get the current working directory.
884 d_getespwnam (d_getespwnam.U):
885 This variable conditionally defines HAS_GETESPWNAM if getespwnam() is
886 available to retrieve enchanced (shadow) password entries by name.
888 d_getfsstat (d_getfsstat.U):
889 This variable conditionally defines the HAS_GETFSSTAT symbol, which
890 indicates to the C program that the getfsstat() routine is available.
892 d_getgrent (d_getgrent.U):
893 This variable conditionally defines the HAS_GETGRENT symbol, which
894 indicates to the C program that the getgrent() routine is available
895 for sequential access of the group database.
897 d_getgrent_r (d_getgrent_r.U):
898 This variable conditionally defines the HAS_GETGRENT_R symbol,
899 which indicates to the C program that the getgrent_r()
900 routine is available.
902 d_getgrgid_r (d_getgrgid_r.U):
903 This variable conditionally defines the HAS_GETGRGID_R symbol,
904 which indicates to the C program that the getgrgid_r()
905 routine is available.
907 d_getgrnam_r (d_getgrnam_r.U):
908 This variable conditionally defines the HAS_GETGRNAM_R symbol,
909 which indicates to the C program that the getgrnam_r()
910 routine is available.
912 d_getgrps (d_getgrps.U):
913 This variable conditionally defines the HAS_GETGROUPS symbol, which
914 indicates to the C program that the getgroups() routine is available
915 to get the list of process groups.
917 d_gethbyaddr (d_gethbyad.U):
918 This variable conditionally defines the HAS_GETHOSTBYADDR symbol, which
919 indicates to the C program that the gethostbyaddr() routine is available
920 to look up hosts by their IP addresses.
922 d_gethbyname (d_gethbynm.U):
923 This variable conditionally defines the HAS_GETHOSTBYNAME symbol, which
924 indicates to the C program that the gethostbyname() routine is available
925 to look up host names in some data base or other.
927 d_gethent (d_gethent.U):
928 This variable conditionally defines HAS_GETHOSTENT if gethostent() is
929 available to look up host names in some data base or another.
931 d_gethname (d_gethname.U):
932 This variable conditionally defines the HAS_GETHOSTNAME symbol, which
933 indicates to the C program that the gethostname() routine may be
934 used to derive the host name.
936 d_gethostbyaddr_r (d_gethostbyaddr_r.U):
937 This variable conditionally defines the HAS_GETHOSTBYADDR_R symbol,
938 which indicates to the C program that the gethostbyaddr_r()
939 routine is available.
941 d_gethostbyname_r (d_gethostbyname_r.U):
942 This variable conditionally defines the HAS_GETHOSTBYNAME_R symbol,
943 which indicates to the C program that the gethostbyname_r()
944 routine is available.
946 d_gethostent_r (d_gethostent_r.U):
947 This variable conditionally defines the HAS_GETHOSTENT_R symbol,
948 which indicates to the C program that the gethostent_r()
949 routine is available.
951 d_gethostprotos (d_gethostprotos.U):
952 This variable conditionally defines the HAS_GETHOST_PROTOS symbol,
953 which indicates to the C program that <netdb.h> supplies
954 prototypes for the various gethost*() functions.
955 See also netdbtype.U for probing for various netdb types.
957 d_getitimer (d_getitimer.U):
958 This variable conditionally defines the HAS_GETITIMER symbol, which
959 indicates to the C program that the getitimer() routine is available.
961 d_getlogin (d_getlogin.U):
962 This variable conditionally defines the HAS_GETLOGIN symbol, which
963 indicates to the C program that the getlogin() routine is available
964 to get the login name.
966 d_getlogin_r (d_getlogin_r.U):
967 This variable conditionally defines the HAS_GETLOGIN_R symbol,
968 which indicates to the C program that the getlogin_r()
969 routine is available.
971 d_getmnt (d_getmnt.U):
972 This variable conditionally defines the HAS_GETMNT symbol, which
973 indicates to the C program that the getmnt() routine is available
974 to retrieve one or more mount info blocks by filename.
976 d_getmntent (d_getmntent.U):
977 This variable conditionally defines the HAS_GETMNTENT symbol, which
978 indicates to the C program that the getmntent() routine is available
979 to iterate through mounted files to get their mount info.
981 d_getnbyaddr (d_getnbyad.U):
982 This variable conditionally defines the HAS_GETNETBYADDR symbol, which
983 indicates to the C program that the getnetbyaddr() routine is available
984 to look up networks by their IP addresses.
986 d_getnbyname (d_getnbynm.U):
987 This variable conditionally defines the HAS_GETNETBYNAME symbol, which
988 indicates to the C program that the getnetbyname() routine is available
989 to look up networks by their names.
991 d_getnent (d_getnent.U):
992 This variable conditionally defines HAS_GETNETENT if getnetent() is
993 available to look up network names in some data base or another.
995 d_getnetbyaddr_r (d_getnetbyaddr_r.U):
996 This variable conditionally defines the HAS_GETNETBYADDR_R symbol,
997 which indicates to the C program that the getnetbyaddr_r()
998 routine is available.
1000 d_getnetbyname_r (d_getnetbyname_r.U):
1001 This variable conditionally defines the HAS_GETNETBYNAME_R symbol,
1002 which indicates to the C program that the getnetbyname_r()
1003 routine is available.
1005 d_getnetent_r (d_getnetent_r.U):
1006 This variable conditionally defines the HAS_GETNETENT_R symbol,
1007 which indicates to the C program that the getnetent_r()
1008 routine is available.
1010 d_getnetprotos (d_getnetprotos.U):
1011 This variable conditionally defines the HAS_GETNET_PROTOS symbol,
1012 which indicates to the C program that <netdb.h> supplies
1013 prototypes for the various getnet*() functions.
1014 See also netdbtype.U for probing for various netdb types.
1016 d_getpagsz (d_getpagsz.U):
1017 This variable conditionally defines HAS_GETPAGESIZE if getpagesize()
1018 is available to get the system page size.
1020 d_getpbyname (d_getprotby.U):
1021 This variable conditionally defines the HAS_GETPROTOBYNAME
1022 symbol, which indicates to the C program that the
1023 getprotobyname() routine is available to look up protocols
1026 d_getpbynumber (d_getprotby.U):
1027 This variable conditionally defines the HAS_GETPROTOBYNUMBER
1028 symbol, which indicates to the C program that the
1029 getprotobynumber() routine is available to look up protocols
1032 d_getpent (d_getpent.U):
1033 This variable conditionally defines HAS_GETPROTOENT if getprotoent() is
1034 available to look up protocols in some data base or another.
1036 d_getpgid (d_getpgid.U):
1037 This variable conditionally defines the HAS_GETPGID symbol, which
1038 indicates to the C program that the getpgid(pid) function
1039 is available to get the process group id.
1041 d_getpgrp (d_getpgrp.U):
1042 This variable conditionally defines HAS_GETPGRP if getpgrp() is
1043 available to get the current process group.
1045 d_getpgrp2 (d_getpgrp2.U):
1046 This variable conditionally defines the HAS_GETPGRP2 symbol, which
1047 indicates to the C program that the getpgrp2() (as in DG/UX) routine
1048 is available to get the current process group.
1050 d_getppid (d_getppid.U):
1051 This variable conditionally defines the HAS_GETPPID symbol, which
1052 indicates to the C program that the getppid() routine is available
1053 to get the parent process ID.
1055 d_getprior (d_getprior.U):
1056 This variable conditionally defines HAS_GETPRIORITY if getpriority()
1057 is available to get a process's priority.
1059 d_getprotobyname_r (d_getprotobyname_r.U):
1060 This variable conditionally defines the HAS_GETPROTOBYNAME_R symbol,
1061 which indicates to the C program that the getprotobyname_r()
1062 routine is available.
1064 d_getprotobynumber_r (d_getprotobynumber_r.U):
1065 This variable conditionally defines the HAS_GETPROTOBYNUMBER_R symbol,
1066 which indicates to the C program that the getprotobynumber_r()
1067 routine is available.
1069 d_getprotoent_r (d_getprotoent_r.U):
1070 This variable conditionally defines the HAS_GETPROTOENT_R symbol,
1071 which indicates to the C program that the getprotoent_r()
1072 routine is available.
1074 d_getprotoprotos (d_getprotoprotos.U):
1075 This variable conditionally defines the HAS_GETPROTO_PROTOS symbol,
1076 which indicates to the C program that <netdb.h> supplies
1077 prototypes for the various getproto*() functions.
1078 See also netdbtype.U for probing for various netdb types.
1080 d_getprpwnam (d_getprpwnam.U):
1081 This variable conditionally defines HAS_GETPRPWNAM if getprpwnam() is
1082 available to retrieve protected (shadow) password entries by name.
1084 d_getpwent (d_getpwent.U):
1085 This variable conditionally defines the HAS_GETPWENT symbol, which
1086 indicates to the C program that the getpwent() routine is available
1087 for sequential access of the passwd database.
1089 d_getpwent_r (d_getpwent_r.U):
1090 This variable conditionally defines the HAS_GETPWENT_R symbol,
1091 which indicates to the C program that the getpwent_r()
1092 routine is available.
1094 d_getpwnam_r (d_getpwnam_r.U):
1095 This variable conditionally defines the HAS_GETPWNAM_R symbol,
1096 which indicates to the C program that the getpwnam_r()
1097 routine is available.
1099 d_getpwuid_r (d_getpwuid_r.U):
1100 This variable conditionally defines the HAS_GETPWUID_R symbol,
1101 which indicates to the C program that the getpwuid_r()
1102 routine is available.
1104 d_getsbyname (d_getsrvby.U):
1105 This variable conditionally defines the HAS_GETSERVBYNAME
1106 symbol, which indicates to the C program that the
1107 getservbyname() routine is available to look up services
1110 d_getsbyport (d_getsrvby.U):
1111 This variable conditionally defines the HAS_GETSERVBYPORT
1112 symbol, which indicates to the C program that the
1113 getservbyport() routine is available to look up services
1116 d_getsent (d_getsent.U):
1117 This variable conditionally defines HAS_GETSERVENT if getservent() is
1118 available to look up network services in some data base or another.
1120 d_getservbyname_r (d_getservbyname_r.U):
1121 This variable conditionally defines the HAS_GETSERVBYNAME_R symbol,
1122 which indicates to the C program that the getservbyname_r()
1123 routine is available.
1125 d_getservbyport_r (d_getservbyport_r.U):
1126 This variable conditionally defines the HAS_GETSERVBYPORT_R symbol,
1127 which indicates to the C program that the getservbyport_r()
1128 routine is available.
1130 d_getservent_r (d_getservent_r.U):
1131 This variable conditionally defines the HAS_GETSERVENT_R symbol,
1132 which indicates to the C program that the getservent_r()
1133 routine is available.
1135 d_getservprotos (d_getservprotos.U):
1136 This variable conditionally defines the HAS_GETSERV_PROTOS symbol,
1137 which indicates to the C program that <netdb.h> supplies
1138 prototypes for the various getserv*() functions.
1139 See also netdbtype.U for probing for various netdb types.
1141 d_getspnam (d_getspnam.U):
1142 This variable conditionally defines HAS_GETSPNAM if getspnam() is
1143 available to retrieve SysV shadow password entries by name.
1145 d_getspnam_r (d_getspnam_r.U):
1146 This variable conditionally defines the HAS_GETSPNAM_R symbol,
1147 which indicates to the C program that the getspnam_r()
1148 routine is available.
1150 d_gettimeod (d_ftime.U):
1151 This variable conditionally defines the HAS_GETTIMEOFDAY symbol, which
1152 indicates that the gettimeofday() system call exists (to obtain a
1153 sub-second accuracy clock). You should probably include <sys/resource.h>.
1155 d_gmtime64 (d_timefuncs64.U):
1156 This variable conditionally defines the HAS_GMTIME64 symbol, which
1157 indicates to the C program that the gmtime64 () routine is available.
1159 d_gmtime_r (d_gmtime_r.U):
1160 This variable conditionally defines the HAS_GMTIME_R symbol,
1161 which indicates to the C program that the gmtime_r()
1162 routine is available.
1164 d_gnulibc (d_gnulibc.U):
1165 Defined if we're dealing with the GNU C Library.
1167 d_grpasswd (i_grp.U):
1168 This variable conditionally defines GRPASSWD, which indicates
1169 that struct group in <grp.h> contains gr_passwd.
1171 d_hasmntopt (d_hasmntopt.U):
1172 This variable conditionally defines the HAS_HASMNTOPT symbol, which
1173 indicates to the C program that the hasmntopt() routine is available
1174 to query the mount options of file systems.
1176 d_htonl (d_htonl.U):
1177 This variable conditionally defines HAS_HTONL if htonl() and its
1178 friends are available to do network order byte swapping.
1180 d_ilogbl (d_ilogbl.U):
1181 This variable conditionally defines the HAS_ILOGBL symbol, which
1182 indicates to the C program that the ilogbl() routine is available.
1183 If scalbnl is also present we can emulate frexpl.
1185 d_inc_version_list (inc_version_list.U):
1186 This variable conditionally defines PERL_INC_VERSION_LIST.
1187 It is set to undef when PERL_INC_VERSION_LIST is empty.
1189 d_index (d_strchr.U):
1190 This variable conditionally defines HAS_INDEX if index() and
1191 rindex() are available for string searching.
1193 d_inetaton (d_inetaton.U):
1194 This variable conditionally defines the HAS_INET_ATON symbol, which
1195 indicates to the C program that the inet_aton() function is available
1196 to parse IP address "dotted-quad" strings.
1198 d_int64_t (d_int64_t.U):
1199 This symbol will be defined if the C compiler supports int64_t.
1201 d_isascii (d_isascii.U):
1202 This variable conditionally defines the HAS_ISASCII constant,
1203 which indicates to the C program that isascii() is available.
1205 d_isfinite (d_isfinite.U):
1206 This variable conditionally defines the HAS_ISFINITE symbol, which
1207 indicates to the C program that the isfinite() routine is available.
1209 d_isinf (d_isinf.U):
1210 This variable conditionally defines the HAS_ISINF symbol, which
1211 indicates to the C program that the isinf() routine is available.
1213 d_isnan (d_isnan.U):
1214 This variable conditionally defines the HAS_ISNAN symbol, which
1215 indicates to the C program that the isnan() routine is available.
1217 d_isnanl (d_isnanl.U):
1218 This variable conditionally defines the HAS_ISNANL symbol, which
1219 indicates to the C program that the isnanl() routine is available.
1221 d_killpg (d_killpg.U):
1222 This variable conditionally defines the HAS_KILLPG symbol, which
1223 indicates to the C program that the killpg() routine is available
1224 to kill process groups.
1226 d_lchown (d_lchown.U):
1227 This variable conditionally defines the HAS_LCHOWN symbol, which
1228 indicates to the C program that the lchown() routine is available
1229 to operate on a symbolic link (instead of following the link).
1231 d_ldbl_dig (d_ldbl_dig.U):
1232 This variable conditionally defines d_ldbl_dig if this system's
1233 header files provide LDBL_DIG, which is the number of significant
1234 digits in a long double precision number.
1236 d_libm_lib_version (d_libm_lib_version.U):
1237 This variable conditionally defines the LIBM_LIB_VERSION symbol,
1238 which indicates to the C program that math.h defines _LIB_VERSION
1239 being available in libm
1242 This variable conditionally defines HAS_LINK if link() is
1243 available to create hard links.
1245 d_localtime64 (d_timefuncs64.U):
1246 This variable conditionally defines the HAS_LOCALTIME64 symbol, which
1247 indicates to the C program that the localtime64 () routine is available.
1249 d_localtime_r (d_localtime_r.U):
1250 This variable conditionally defines the HAS_LOCALTIME_R symbol,
1251 which indicates to the C program that the localtime_r()
1252 routine is available.
1254 d_localtime_r_needs_tzset (d_localtime_r.U):
1255 This variable conditionally defines the LOCALTIME_R_NEEDS_TZSET
1256 symbol, which makes us call tzset before localtime_r()
1258 d_locconv (d_locconv.U):
1259 This variable conditionally defines HAS_LOCALECONV if localeconv() is
1260 available for numeric and monetary formatting conventions.
1262 d_lockf (d_lockf.U):
1263 This variable conditionally defines HAS_LOCKF if lockf() is
1264 available to do file locking.
1266 d_longdbl (d_longdbl.U):
1267 This variable conditionally defines HAS_LONG_DOUBLE if
1268 the long double type is supported.
1270 d_longlong (d_longlong.U):
1271 This variable conditionally defines HAS_LONG_LONG if
1272 the long long type is supported.
1274 d_lseekproto (d_lseekproto.U):
1275 This variable conditionally defines the HAS_LSEEK_PROTO symbol,
1276 which indicates to the C program that the system provides
1277 a prototype for the lseek() function. Otherwise, it is
1278 up to the program to supply one.
1280 d_lstat (d_lstat.U):
1281 This variable conditionally defines HAS_LSTAT if lstat() is
1282 available to do file stats on symbolic links.
1284 d_madvise (d_madvise.U):
1285 This variable conditionally defines HAS_MADVISE if madvise() is
1286 available to map a file into memory.
1288 d_malloc_good_size (d_malloc_size.U):
1289 This symbol, if defined, indicates that the malloc_good_size
1290 routine is available for use.
1292 d_malloc_size (d_malloc_size.U):
1293 This symbol, if defined, indicates that the malloc_size
1294 routine is available for use.
1296 d_mblen (d_mblen.U):
1297 This variable conditionally defines the HAS_MBLEN symbol, which
1298 indicates to the C program that the mblen() routine is available
1299 to find the number of bytes in a multibye character.
1301 d_mbstowcs (d_mbstowcs.U):
1302 This variable conditionally defines the HAS_MBSTOWCS symbol, which
1303 indicates to the C program that the mbstowcs() routine is available
1304 to convert a multibyte string into a wide character string.
1306 d_mbtowc (d_mbtowc.U):
1307 This variable conditionally defines the HAS_MBTOWC symbol, which
1308 indicates to the C program that the mbtowc() routine is available
1309 to convert multibyte to a wide character.
1311 d_memchr (d_memchr.U):
1312 This variable conditionally defines the HAS_MEMCHR symbol, which
1313 indicates to the C program that the memchr() routine is available
1314 to locate characters within a C string.
1316 d_memcmp (d_memcmp.U):
1317 This variable conditionally defines the HAS_MEMCMP symbol, which
1318 indicates to the C program that the memcmp() routine is available
1319 to compare blocks of memory.
1321 d_memcpy (d_memcpy.U):
1322 This variable conditionally defines the HAS_MEMCPY symbol, which
1323 indicates to the C program that the memcpy() routine is available
1324 to copy blocks of memory.
1326 d_memmove (d_memmove.U):
1327 This variable conditionally defines the HAS_MEMMOVE symbol, which
1328 indicates to the C program that the memmove() routine is available
1329 to copy potentatially overlapping blocks of memory.
1331 d_memset (d_memset.U):
1332 This variable conditionally defines the HAS_MEMSET symbol, which
1333 indicates to the C program that the memset() routine is available
1334 to set blocks of memory.
1336 d_mkdir (d_mkdir.U):
1337 This variable conditionally defines the HAS_MKDIR symbol, which
1338 indicates to the C program that the mkdir() routine is available
1339 to create directories..
1341 d_mkdtemp (d_mkdtemp.U):
1342 This variable conditionally defines the HAS_MKDTEMP symbol, which
1343 indicates to the C program that the mkdtemp() routine is available
1344 to exclusively create a uniquely named temporary directory.
1346 d_mkfifo (d_mkfifo.U):
1347 This variable conditionally defines the HAS_MKFIFO symbol, which
1348 indicates to the C program that the mkfifo() routine is available.
1350 d_mkstemp (d_mkstemp.U):
1351 This variable conditionally defines the HAS_MKSTEMP symbol, which
1352 indicates to the C program that the mkstemp() routine is available
1353 to exclusively create and open a uniquely named temporary file.
1355 d_mkstemps (d_mkstemps.U):
1356 This variable conditionally defines the HAS_MKSTEMPS symbol, which
1357 indicates to the C program that the mkstemps() routine is available
1358 to exclusively create and open a uniquely named (with a suffix)
1361 d_mktime (d_mktime.U):
1362 This variable conditionally defines the HAS_MKTIME symbol, which
1363 indicates to the C program that the mktime() routine is available.
1365 d_mktime64 (d_timefuncs64.U):
1366 This variable conditionally defines the HAS_MKTIME64 symbol, which
1367 indicates to the C program that the mktime64 () routine is available.
1370 This variable conditionally defines HAS_MMAP if mmap() is
1371 available to map a file into memory.
1373 d_modfl (d_modfl.U):
1374 This variable conditionally defines the HAS_MODFL symbol, which
1375 indicates to the C program that the modfl() routine is available.
1377 d_modfl_pow32_bug (d_modfl.U):
1378 This variable conditionally defines the HAS_MODFL_POW32_BUG symbol,
1379 which indicates that modfl() is broken for long doubles >= pow(2, 32).
1380 For example from 4294967303.150000 one would get 4294967302.000000
1381 and 1.150000. The bug has been seen in certain versions of glibc,
1382 release 2.2.2 is known to be okay.
1384 d_modflproto (d_modfl.U):
1385 This symbol, if defined, indicates that the system provides
1386 a prototype for the modfl() function. Otherwise, it is up
1387 to the program to supply one. C99 says it should be
1388 long double modfl(long double, long double *);
1390 d_mprotect (d_mprotect.U):
1391 This variable conditionally defines HAS_MPROTECT if mprotect() is
1392 available to modify the access protection of a memory mapped file.
1395 This variable conditionally defines the HAS_MSG symbol, which
1396 indicates that the entire msg*(2) library is present.
1398 d_msg_ctrunc (d_socket.U):
1399 This variable conditionally defines the HAS_MSG_CTRUNC symbol,
1400 which indicates that the MSG_CTRUNC is available. #ifdef is
1401 not enough because it may be an enum, glibc has been known to do this.
1403 d_msg_dontroute (d_socket.U):
1404 This variable conditionally defines the HAS_MSG_DONTROUTE symbol,
1405 which indicates that the MSG_DONTROUTE is available. #ifdef is
1406 not enough because it may be an enum, glibc has been known to do this.
1408 d_msg_oob (d_socket.U):
1409 This variable conditionally defines the HAS_MSG_OOB symbol,
1410 which indicates that the MSG_OOB is available. #ifdef is
1411 not enough because it may be an enum, glibc has been known to do this.
1413 d_msg_peek (d_socket.U):
1414 This variable conditionally defines the HAS_MSG_PEEK symbol,
1415 which indicates that the MSG_PEEK is available. #ifdef is
1416 not enough because it may be an enum, glibc has been known to do this.
1418 d_msg_proxy (d_socket.U):
1419 This variable conditionally defines the HAS_MSG_PROXY symbol,
1420 which indicates that the MSG_PROXY is available. #ifdef is
1421 not enough because it may be an enum, glibc has been known to do this.
1423 d_msgctl (d_msgctl.U):
1424 This variable conditionally defines the HAS_MSGCTL symbol, which
1425 indicates to the C program that the msgctl() routine is available.
1427 d_msgget (d_msgget.U):
1428 This variable conditionally defines the HAS_MSGGET symbol, which
1429 indicates to the C program that the msgget() routine is available.
1431 d_msghdr_s (d_msghdr_s.U):
1432 This variable conditionally defines the HAS_STRUCT_MSGHDR symbol,
1433 which indicates that the struct msghdr is supported.
1435 d_msgrcv (d_msgrcv.U):
1436 This variable conditionally defines the HAS_MSGRCV symbol, which
1437 indicates to the C program that the msgrcv() routine is available.
1439 d_msgsnd (d_msgsnd.U):
1440 This variable conditionally defines the HAS_MSGSND symbol, which
1441 indicates to the C program that the msgsnd() routine is available.
1443 d_msync (d_msync.U):
1444 This variable conditionally defines HAS_MSYNC if msync() is
1445 available to synchronize a mapped file.
1447 d_munmap (d_munmap.U):
1448 This variable conditionally defines HAS_MUNMAP if munmap() is
1449 available to unmap a region mapped by mmap().
1451 d_mymalloc (mallocsrc.U):
1452 This variable conditionally defines MYMALLOC in case other parts
1453 of the source want to take special action if MYMALLOC is used.
1454 This may include different sorts of profiling or error detection.
1457 This variable conditionally defines the HAS_NDBM symbol, which
1458 indicates that both the ndbm.h include file and an appropriate ndbm
1459 library exist. Consult the different i_*ndbm variables
1460 to find out the actual include location. Sometimes, a system has the
1461 header file but not the library. This variable will only be set if
1462 the system has both.
1465 This variable conditionally defines the HAS_NICE symbol, which
1466 indicates to the C program that the nice() routine is available.
1468 d_nl_langinfo (d_nl_langinfo.U):
1469 This variable conditionally defines the HAS_NL_LANGINFO symbol, which
1470 indicates to the C program that the nl_langinfo() routine is available.
1472 d_nv_preserves_uv (perlxv.U):
1473 This variable indicates whether a variable of type nvtype
1474 can preserve all the bits a variable of type uvtype.
1476 d_nv_zero_is_allbits_zero (perlxv.U):
1477 This variable indicates whether a variable of type nvtype
1478 stores 0.0 in memory as all bits zero.
1480 d_off64_t (d_off64_t.U):
1481 This symbol will be defined if the C compiler supports off64_t.
1483 d_old_pthread_create_joinable (d_pthrattrj.U):
1484 This variable conditionally defines pthread_create_joinable.
1485 undef if pthread.h defines PTHREAD_CREATE_JOINABLE.
1487 d_oldpthreads (usethreads.U):
1488 This variable conditionally defines the OLD_PTHREADS_API symbol,
1489 and indicates that Perl should be built to use the old
1490 draft POSIX threads API. This is only potentially meaningful if
1493 d_oldsock (d_socket.U):
1494 This variable conditionally defines the OLDSOCKET symbol, which
1495 indicates that the BSD socket interface is based on 4.1c and not 4.2.
1497 d_open3 (d_open3.U):
1498 This variable conditionally defines the HAS_OPEN3 manifest constant,
1499 which indicates to the C program that the 3 argument version of
1500 the open(2) function is available.
1502 d_pathconf (d_pathconf.U):
1503 This variable conditionally defines the HAS_PATHCONF symbol, which
1504 indicates to the C program that the pathconf() routine is available
1505 to determine file-system related limits and options associated
1506 with a given filename.
1508 d_pause (d_pause.U):
1509 This variable conditionally defines the HAS_PAUSE symbol, which
1510 indicates to the C program that the pause() routine is available
1511 to suspend a process until a signal is received.
1513 d_perl_otherlibdirs (otherlibdirs.U):
1514 This variable conditionally defines PERL_OTHERLIBDIRS, which
1515 contains a colon-separated set of paths for the perl binary to
1516 include in @INC. See also otherlibdirs.
1518 d_phostname (d_gethname.U):
1519 This variable conditionally defines the HAS_PHOSTNAME symbol, which
1520 contains the shell command which, when fed to popen(), may be
1521 used to derive the host name.
1524 This variable conditionally defines the HAS_PIPE symbol, which
1525 indicates to the C program that the pipe() routine is available
1526 to create an inter-process channel.
1529 This variable conditionally defines the HAS_POLL symbol, which
1530 indicates to the C program that the poll() routine is available
1531 to poll active file descriptors.
1533 d_portable (d_portable.U):
1534 This variable conditionally defines the PORTABLE symbol, which
1535 indicates to the C program that it should not assume that it is
1536 running on the machine it was compiled on.
1538 d_PRId64 (quadfio.U):
1539 This variable conditionally defines the PERL_PRId64 symbol, which
1540 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1542 d_PRIeldbl (longdblfio.U):
1543 This variable conditionally defines the PERL_PRIfldbl symbol, which
1544 indiciates that stdio has a symbol to print long doubles.
1546 d_PRIEUldbl (longdblfio.U):
1547 This variable conditionally defines the PERL_PRIfldbl symbol, which
1548 indiciates that stdio has a symbol to print long doubles.
1549 The 'U' in the name is to separate this from d_PRIeldbl so that even
1550 case-blind systems can see the difference.
1552 d_PRIfldbl (longdblfio.U):
1553 This variable conditionally defines the PERL_PRIfldbl symbol, which
1554 indiciates that stdio has a symbol to print long doubles.
1556 d_PRIFUldbl (longdblfio.U):
1557 This variable conditionally defines the PERL_PRIfldbl symbol, which
1558 indiciates that stdio has a symbol to print long doubles.
1559 The 'U' in the name is to separate this from d_PRIfldbl so that even
1560 case-blind systems can see the difference.
1562 d_PRIgldbl (longdblfio.U):
1563 This variable conditionally defines the PERL_PRIfldbl symbol, which
1564 indiciates that stdio has a symbol to print long doubles.
1566 d_PRIGUldbl (longdblfio.U):
1567 This variable conditionally defines the PERL_PRIfldbl symbol, which
1568 indiciates that stdio has a symbol to print long doubles.
1569 The 'U' in the name is to separate this from d_PRIgldbl so that even
1570 case-blind systems can see the difference.
1572 d_PRIi64 (quadfio.U):
1573 This variable conditionally defines the PERL_PRIi64 symbol, which
1574 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1576 d_printf_format_null (d_attribut.U):
1577 This variable conditionally defines PRINTF_FORMAT_NULL_OK, which
1578 indicates the C compiler allows printf-like formats to be null.
1580 d_PRIo64 (quadfio.U):
1581 This variable conditionally defines the PERL_PRIo64 symbol, which
1582 indiciates that stdio has a symbol to print 64-bit octal numbers.
1584 d_PRIu64 (quadfio.U):
1585 This variable conditionally defines the PERL_PRIu64 symbol, which
1586 indiciates that stdio has a symbol to print 64-bit unsigned decimal
1589 d_PRIx64 (quadfio.U):
1590 This variable conditionally defines the PERL_PRIx64 symbol, which
1591 indiciates that stdio has a symbol to print 64-bit hexadecimal numbers.
1593 d_PRIXU64 (quadfio.U):
1594 This variable conditionally defines the PERL_PRIXU64 symbol, which
1595 indiciates that stdio has a symbol to print 64-bit hExADECimAl numbers.
1596 The 'U' in the name is to separate this from d_PRIx64 so that even
1597 case-blind systems can see the difference.
1599 d_procselfexe (d_procselfexe.U):
1600 Defined if $procselfexe is symlink to the absolute
1601 pathname of the executing program.
1603 d_pseudofork (d_vfork.U):
1604 This variable conditionally defines the HAS_PSEUDOFORK symbol,
1605 which indicates that an emulation of the fork routine is available.
1607 d_pthread_atfork (d_pthread_atfork.U):
1608 This variable conditionally defines the HAS_PTHREAD_ATFORK symbol,
1609 which indicates to the C program that the pthread_atfork()
1610 routine is available.
1612 d_pthread_attr_setscope (d_pthread_attr_ss.U):
1613 This variable conditionally defines HAS_PTHREAD_ATTR_SETSCOPE if
1614 pthread_attr_setscope() is available to set the contention scope
1615 attribute of a thread attribute object.
1617 d_pthread_yield (d_pthread_y.U):
1618 This variable conditionally defines the HAS_PTHREAD_YIELD
1619 symbol if the pthread_yield routine is available to yield
1620 the execution of the current thread.
1623 This variable conditionally defines PWAGE, which indicates
1624 that struct passwd contains pw_age.
1626 d_pwchange (i_pwd.U):
1627 This variable conditionally defines PWCHANGE, which indicates
1628 that struct passwd contains pw_change.
1630 d_pwclass (i_pwd.U):
1631 This variable conditionally defines PWCLASS, which indicates
1632 that struct passwd contains pw_class.
1634 d_pwcomment (i_pwd.U):
1635 This variable conditionally defines PWCOMMENT, which indicates
1636 that struct passwd contains pw_comment.
1638 d_pwexpire (i_pwd.U):
1639 This variable conditionally defines PWEXPIRE, which indicates
1640 that struct passwd contains pw_expire.
1642 d_pwgecos (i_pwd.U):
1643 This variable conditionally defines PWGECOS, which indicates
1644 that struct passwd contains pw_gecos.
1646 d_pwpasswd (i_pwd.U):
1647 This variable conditionally defines PWPASSWD, which indicates
1648 that struct passwd contains pw_passwd.
1650 d_pwquota (i_pwd.U):
1651 This variable conditionally defines PWQUOTA, which indicates
1652 that struct passwd contains pw_quota.
1654 d_qgcvt (d_qgcvt.U):
1655 This variable conditionally defines the HAS_QGCVT symbol, which
1656 indicates to the C program that the qgcvt() routine is available.
1658 d_quad (quadtype.U):
1659 This variable, if defined, tells that there's a 64-bit integer type,
1662 d_random_r (d_random_r.U):
1663 This variable conditionally defines the HAS_RANDOM_R symbol,
1664 which indicates to the C program that the random_r()
1665 routine is available.
1667 d_readdir (d_readdir.U):
1668 This variable conditionally defines HAS_READDIR if readdir() is
1669 available to read directory entries.
1671 d_readdir64_r (d_readdir64_r.U):
1672 This variable conditionally defines the HAS_READDIR64_R symbol,
1673 which indicates to the C program that the readdir64_r()
1674 routine is available.
1676 d_readdir_r (d_readdir_r.U):
1677 This variable conditionally defines the HAS_READDIR_R symbol,
1678 which indicates to the C program that the readdir_r()
1679 routine is available.
1681 d_readlink (d_readlink.U):
1682 This variable conditionally defines the HAS_READLINK symbol, which
1683 indicates to the C program that the readlink() routine is available
1684 to read the value of a symbolic link.
1686 d_readv (d_readv.U):
1687 This variable conditionally defines the HAS_READV symbol, which
1688 indicates to the C program that the readv() routine is available.
1690 d_recvmsg (d_recvmsg.U):
1691 This variable conditionally defines the HAS_RECVMSG symbol, which
1692 indicates to the C program that the recvmsg() routine is available.
1694 d_rename (d_rename.U):
1695 This variable conditionally defines the HAS_RENAME symbol, which
1696 indicates to the C program that the rename() routine is available
1699 d_rewinddir (d_readdir.U):
1700 This variable conditionally defines HAS_REWINDDIR if rewinddir() is
1703 d_rmdir (d_rmdir.U):
1704 This variable conditionally defines HAS_RMDIR if rmdir() is
1705 available to remove directories.
1707 d_safebcpy (d_safebcpy.U):
1708 This variable conditionally defines the HAS_SAFE_BCOPY symbol if
1709 the bcopy() routine can do overlapping copies. Normally, you
1710 should probably use memmove().
1712 d_safemcpy (d_safemcpy.U):
1713 This variable conditionally defines the HAS_SAFE_MEMCPY symbol if
1714 the memcpy() routine can do overlapping copies.
1715 For overlapping copies, memmove() should be used, if available.
1717 d_sanemcmp (d_sanemcmp.U):
1718 This variable conditionally defines the HAS_SANE_MEMCMP symbol if
1719 the memcpy() routine is available and can be used to compare relative
1720 magnitudes of chars with their high bits set.
1722 d_sbrkproto (d_sbrkproto.U):
1723 This variable conditionally defines the HAS_SBRK_PROTO symbol,
1724 which indicates to the C program that the system provides
1725 a prototype for the sbrk() function. Otherwise, it is
1726 up to the program to supply one.
1728 d_scalbnl (d_scalbnl.U):
1729 This variable conditionally defines the HAS_SCALBNL symbol, which
1730 indicates to the C program that the scalbnl() routine is available.
1731 If ilogbl is also present we can emulate frexpl.
1733 d_sched_yield (d_pthread_y.U):
1734 This variable conditionally defines the HAS_SCHED_YIELD
1735 symbol if the sched_yield routine is available to yield
1736 the execution of the current thread.
1738 d_scm_rights (d_socket.U):
1739 This variable conditionally defines the HAS_SCM_RIGHTS symbol,
1740 which indicates that the SCM_RIGHTS is available. #ifdef is
1741 not enough because it may be an enum, glibc has been known to do this.
1743 d_SCNfldbl (longdblfio.U):
1744 This variable conditionally defines the PERL_PRIfldbl symbol, which
1745 indiciates that stdio has a symbol to scan long doubles.
1747 d_seekdir (d_readdir.U):
1748 This variable conditionally defines HAS_SEEKDIR if seekdir() is
1751 d_select (d_select.U):
1752 This variable conditionally defines HAS_SELECT if select() is
1753 available to select active file descriptors. A <sys/time.h>
1754 inclusion may be necessary for the timeout field.
1757 This variable conditionally defines the HAS_SEM symbol, which
1758 indicates that the entire sem*(2) library is present.
1760 d_semctl (d_semctl.U):
1761 This variable conditionally defines the HAS_SEMCTL symbol, which
1762 indicates to the C program that the semctl() routine is available.
1764 d_semctl_semid_ds (d_union_semun.U):
1765 This variable conditionally defines USE_SEMCTL_SEMID_DS, which
1766 indicates that struct semid_ds * is to be used for semctl IPC_STAT.
1768 d_semctl_semun (d_union_semun.U):
1769 This variable conditionally defines USE_SEMCTL_SEMUN, which
1770 indicates that union semun is to be used for semctl IPC_STAT.
1772 d_semget (d_semget.U):
1773 This variable conditionally defines the HAS_SEMGET symbol, which
1774 indicates to the C program that the semget() routine is available.
1776 d_semop (d_semop.U):
1777 This variable conditionally defines the HAS_SEMOP symbol, which
1778 indicates to the C program that the semop() routine is available.
1780 d_sendmsg (d_sendmsg.U):
1781 This variable conditionally defines the HAS_SENDMSG symbol, which
1782 indicates to the C program that the sendmsg() routine is available.
1784 d_setegid (d_setegid.U):
1785 This variable conditionally defines the HAS_SETEGID symbol, which
1786 indicates to the C program that the setegid() routine is available
1787 to change the effective gid of the current program.
1789 d_seteuid (d_seteuid.U):
1790 This variable conditionally defines the HAS_SETEUID symbol, which
1791 indicates to the C program that the seteuid() routine is available
1792 to change the effective uid of the current program.
1794 d_setgrent (d_setgrent.U):
1795 This variable conditionally defines the HAS_SETGRENT symbol, which
1796 indicates to the C program that the setgrent() routine is available
1797 for initializing sequential access to the group database.
1799 d_setgrent_r (d_setgrent_r.U):
1800 This variable conditionally defines the HAS_SETGRENT_R symbol,
1801 which indicates to the C program that the setgrent_r()
1802 routine is available.
1804 d_setgrps (d_setgrps.U):
1805 This variable conditionally defines the HAS_SETGROUPS symbol, which
1806 indicates to the C program that the setgroups() routine is available
1807 to set the list of process groups.
1809 d_sethent (d_sethent.U):
1810 This variable conditionally defines HAS_SETHOSTENT if sethostent() is
1813 d_sethostent_r (d_sethostent_r.U):
1814 This variable conditionally defines the HAS_SETHOSTENT_R symbol,
1815 which indicates to the C program that the sethostent_r()
1816 routine is available.
1818 d_setitimer (d_setitimer.U):
1819 This variable conditionally defines the HAS_SETITIMER symbol, which
1820 indicates to the C program that the setitimer() routine is available.
1822 d_setlinebuf (d_setlnbuf.U):
1823 This variable conditionally defines the HAS_SETLINEBUF symbol, which
1824 indicates to the C program that the setlinebuf() routine is available
1825 to change stderr or stdout from block-buffered or unbuffered to a
1828 d_setlocale (d_setlocale.U):
1829 This variable conditionally defines HAS_SETLOCALE if setlocale() is
1830 available to handle locale-specific ctype implementations.
1832 d_setlocale_r (d_setlocale_r.U):
1833 This variable conditionally defines the HAS_SETLOCALE_R symbol,
1834 which indicates to the C program that the setlocale_r()
1835 routine is available.
1837 d_setnent (d_setnent.U):
1838 This variable conditionally defines HAS_SETNETENT if setnetent() is
1841 d_setnetent_r (d_setnetent_r.U):
1842 This variable conditionally defines the HAS_SETNETENT_R symbol,
1843 which indicates to the C program that the setnetent_r()
1844 routine is available.
1846 d_setpent (d_setpent.U):
1847 This variable conditionally defines HAS_SETPROTOENT if setprotoent() is
1850 d_setpgid (d_setpgid.U):
1851 This variable conditionally defines the HAS_SETPGID symbol if the
1852 setpgid(pid, gpid) function is available to set process group ID.
1854 d_setpgrp (d_setpgrp.U):
1855 This variable conditionally defines HAS_SETPGRP if setpgrp() is
1856 available to set the current process group.
1858 d_setpgrp2 (d_setpgrp2.U):
1859 This variable conditionally defines the HAS_SETPGRP2 symbol, which
1860 indicates to the C program that the setpgrp2() (as in DG/UX) routine
1861 is available to set the current process group.
1863 d_setprior (d_setprior.U):
1864 This variable conditionally defines HAS_SETPRIORITY if setpriority()
1865 is available to set a process's priority.
1867 d_setproctitle (d_setproctitle.U):
1868 This variable conditionally defines the HAS_SETPROCTITLE symbol,
1869 which indicates to the C program that the setproctitle() routine
1872 d_setprotoent_r (d_setprotoent_r.U):
1873 This variable conditionally defines the HAS_SETPROTOENT_R symbol,
1874 which indicates to the C program that the setprotoent_r()
1875 routine is available.
1877 d_setpwent (d_setpwent.U):
1878 This variable conditionally defines the HAS_SETPWENT symbol, which
1879 indicates to the C program that the setpwent() routine is available
1880 for initializing sequential access to the passwd database.
1882 d_setpwent_r (d_setpwent_r.U):
1883 This variable conditionally defines the HAS_SETPWENT_R symbol,
1884 which indicates to the C program that the setpwent_r()
1885 routine is available.
1887 d_setregid (d_setregid.U):
1888 This variable conditionally defines HAS_SETREGID if setregid() is
1889 available to change the real and effective gid of the current
1892 d_setresgid (d_setregid.U):
1893 This variable conditionally defines HAS_SETRESGID if setresgid() is
1894 available to change the real, effective and saved gid of the current
1897 d_setresuid (d_setreuid.U):
1898 This variable conditionally defines HAS_SETREUID if setresuid() is
1899 available to change the real, effective and saved uid of the current
1902 d_setreuid (d_setreuid.U):
1903 This variable conditionally defines HAS_SETREUID if setreuid() is
1904 available to change the real and effective uid of the current
1907 d_setrgid (d_setrgid.U):
1908 This variable conditionally defines the HAS_SETRGID symbol, which
1909 indicates to the C program that the setrgid() routine is available
1910 to change the real gid of the current program.
1912 d_setruid (d_setruid.U):
1913 This variable conditionally defines the HAS_SETRUID symbol, which
1914 indicates to the C program that the setruid() routine is available
1915 to change the real uid of the current program.
1917 d_setsent (d_setsent.U):
1918 This variable conditionally defines HAS_SETSERVENT if setservent() is
1921 d_setservent_r (d_setservent_r.U):
1922 This variable conditionally defines the HAS_SETSERVENT_R symbol,
1923 which indicates to the C program that the setservent_r()
1924 routine is available.
1926 d_setsid (d_setsid.U):
1927 This variable conditionally defines HAS_SETSID if setsid() is
1928 available to set the process group ID.
1930 d_setvbuf (d_setvbuf.U):
1931 This variable conditionally defines the HAS_SETVBUF symbol, which
1932 indicates to the C program that the setvbuf() routine is available
1933 to change buffering on an open stdio stream.
1936 This variable conditionally defines the USE_SFIO symbol,
1937 and indicates whether sfio is available (and should be used).
1940 This variable conditionally defines the HAS_SHM symbol, which
1941 indicates that the entire shm*(2) library is present.
1943 d_shmat (d_shmat.U):
1944 This variable conditionally defines the HAS_SHMAT symbol, which
1945 indicates to the C program that the shmat() routine is available.
1947 d_shmatprototype (d_shmat.U):
1948 This variable conditionally defines the HAS_SHMAT_PROTOTYPE
1949 symbol, which indicates that sys/shm.h has a prototype for
1952 d_shmctl (d_shmctl.U):
1953 This variable conditionally defines the HAS_SHMCTL symbol, which
1954 indicates to the C program that the shmctl() routine is available.
1956 d_shmdt (d_shmdt.U):
1957 This variable conditionally defines the HAS_SHMDT symbol, which
1958 indicates to the C program that the shmdt() routine is available.
1960 d_shmget (d_shmget.U):
1961 This variable conditionally defines the HAS_SHMGET symbol, which
1962 indicates to the C program that the shmget() routine is available.
1964 d_sigaction (d_sigaction.U):
1965 This variable conditionally defines the HAS_SIGACTION symbol, which
1966 indicates that the Vr4 sigaction() routine is available.
1968 d_signbit (d_signbit.U):
1969 This variable conditionally defines the HAS_SIGNBIT symbol, which
1970 indicates to the C program that the signbit() routine is available
1971 and safe to use with perl's intern NV type.
1973 d_sigprocmask (d_sigprocmask.U):
1974 This variable conditionally defines HAS_SIGPROCMASK
1975 if sigprocmask() is available to examine or change the signal mask
1976 of the calling process.
1978 d_sigsetjmp (d_sigsetjmp.U):
1979 This variable conditionally defines the HAS_SIGSETJMP symbol,
1980 which indicates that the sigsetjmp() routine is available to
1981 call setjmp() and optionally save the process's signal mask.
1983 d_sitearch (sitearch.U):
1984 This variable conditionally defines SITEARCH to hold the pathname
1985 of architecture-dependent library files for $package. If
1986 $sitearch is the same as $archlib, then this is set to undef.
1988 d_snprintf (d_snprintf.U):
1989 This variable conditionally defines the HAS_SNPRINTF symbol, which
1990 indicates to the C program that the snprintf () library function
1993 d_sockatmark (d_sockatmark.U):
1994 This variable conditionally defines the HAS_SOCKATMARK symbol, which
1995 indicates to the C program that the sockatmark() routine is available.
1997 d_sockatmarkproto (d_sockatmarkproto.U):
1998 This variable conditionally defines the HAS_SOCKATMARK_PROTO symbol,
1999 which indicates to the C program that the system provides
2000 a prototype for the sockatmark() function. Otherwise, it is
2001 up to the program to supply one.
2003 d_socket (d_socket.U):
2004 This variable conditionally defines HAS_SOCKET, which indicates
2005 that the BSD socket interface is supported.
2007 d_socklen_t (d_socklen_t.U):
2008 This symbol will be defined if the C compiler supports socklen_t.
2010 d_sockpair (d_socket.U):
2011 This variable conditionally defines the HAS_SOCKETPAIR symbol, which
2012 indicates that the BSD socketpair() is supported.
2014 d_socks5_init (d_socks5_init.U):
2015 This variable conditionally defines the HAS_SOCKS5_INIT symbol, which
2016 indicates to the C program that the socks5_init() routine is available.
2018 d_sprintf_returns_strlen (d_sprintf_len.U):
2019 This variable defines whether sprintf returns the length of the string
2020 (as per the ANSI spec). Some C libraries retain compatibility with
2021 pre-ANSI C and return a pointer to the passed in buffer; for these
2022 this variable will be undef.
2024 d_sqrtl (d_sqrtl.U):
2025 This variable conditionally defines the HAS_SQRTL symbol, which
2026 indicates to the C program that the sqrtl() routine is available.
2028 d_srand48_r (d_srand48_r.U):
2029 This variable conditionally defines the HAS_SRAND48_R symbol,
2030 which indicates to the C program that the srand48_r()
2031 routine is available.
2033 d_srandom_r (d_srandom_r.U):
2034 This variable conditionally defines the HAS_SRANDOM_R symbol,
2035 which indicates to the C program that the srandom_r()
2036 routine is available.
2038 d_sresgproto (d_sresgproto.U):
2039 This variable conditionally defines the HAS_SETRESGID_PROTO symbol,
2040 which indicates to the C program that the system provides
2041 a prototype for the setresgid() function. Otherwise, it is
2042 up to the program to supply one.
2044 d_sresuproto (d_sresuproto.U):
2045 This variable conditionally defines the HAS_SETRESUID_PROTO symbol,
2046 which indicates to the C program that the system provides
2047 a prototype for the setresuid() function. Otherwise, it is
2048 up to the program to supply one.
2050 d_statblks (d_statblks.U):
2051 This variable conditionally defines USE_STAT_BLOCKS
2052 if this system has a stat structure declaring
2053 st_blksize and st_blocks.
2055 d_statfs_f_flags (d_statfs_f_flags.U):
2056 This variable conditionally defines the HAS_STRUCT_STATFS_F_FLAGS
2057 symbol, which indicates to struct statfs from has f_flags member.
2058 This kind of struct statfs is coming from sys/mount.h (BSD),
2059 not from sys/statfs.h (SYSV).
2061 d_statfs_s (d_statfs_s.U):
2062 This variable conditionally defines the HAS_STRUCT_STATFS symbol,
2063 which indicates that the struct statfs is supported.
2065 d_statvfs (d_statvfs.U):
2066 This variable conditionally defines the HAS_STATVFS symbol, which
2067 indicates to the C program that the statvfs() routine is available.
2069 d_stdio_cnt_lval (d_stdstdio.U):
2070 This variable conditionally defines STDIO_CNT_LVALUE if the
2071 FILE_cnt macro can be used as an lvalue.
2073 d_stdio_ptr_lval (d_stdstdio.U):
2074 This variable conditionally defines STDIO_PTR_LVALUE if the
2075 FILE_ptr macro can be used as an lvalue.
2077 d_stdio_ptr_lval_nochange_cnt (d_stdstdio.U):
2078 This symbol is defined if using the FILE_ptr macro as an lvalue
2079 to increase the pointer by n leaves File_cnt(fp) unchanged.
2081 d_stdio_ptr_lval_sets_cnt (d_stdstdio.U):
2082 This symbol is defined if using the FILE_ptr macro as an lvalue
2083 to increase the pointer by n has the side effect of decreasing the
2084 value of File_cnt(fp) by n.
2086 d_stdio_stream_array (stdio_streams.U):
2087 This variable tells whether there is an array holding
2090 d_stdiobase (d_stdstdio.U):
2091 This variable conditionally defines USE_STDIO_BASE if this system
2092 has a FILE structure declaring a usable _base field (or equivalent)
2095 d_stdstdio (d_stdstdio.U):
2096 This variable conditionally defines USE_STDIO_PTR if this system
2097 has a FILE structure declaring usable _ptr and _cnt fields (or
2098 equivalent) in stdio.h.
2100 d_strchr (d_strchr.U):
2101 This variable conditionally defines HAS_STRCHR if strchr() and
2102 strrchr() are available for string searching.
2104 d_strcoll (d_strcoll.U):
2105 This variable conditionally defines HAS_STRCOLL if strcoll() is
2106 available to compare strings using collating information.
2108 d_strctcpy (d_strctcpy.U):
2109 This variable conditionally defines the USE_STRUCT_COPY symbol, which
2110 indicates to the C program that this C compiler knows how to copy
2113 d_strerrm (d_strerror.U):
2114 This variable holds what Strerrr is defined as to translate an error
2115 code condition into an error message string. It could be 'strerror'
2116 or a more complex macro emulating strrror with sys_errlist[], or the
2117 "unknown" string when both strerror and sys_errlist are missing.
2119 d_strerror (d_strerror.U):
2120 This variable conditionally defines HAS_STRERROR if strerror() is
2121 available to translate error numbers to strings.
2123 d_strerror_r (d_strerror_r.U):
2124 This variable conditionally defines the HAS_STRERROR_R symbol,
2125 which indicates to the C program that the strerror_r()
2126 routine is available.
2128 d_strftime (d_strftime.U):
2129 This variable conditionally defines the HAS_STRFTIME symbol, which
2130 indicates to the C program that the strftime() routine is available.
2132 d_strlcat (d_strlcat.U):
2133 This variable conditionally defines the HAS_STRLCAT symbol, which
2134 indicates to the C program that the strlcat () routine is available.
2136 d_strlcpy (d_strlcpy.U):
2137 This variable conditionally defines the HAS_STRLCPY symbol, which
2138 indicates to the C program that the strlcpy () routine is available.
2140 d_strtod (d_strtod.U):
2141 This variable conditionally defines the HAS_STRTOD symbol, which
2142 indicates to the C program that the strtod() routine is available
2143 to provide better numeric string conversion than atof().
2145 d_strtol (d_strtol.U):
2146 This variable conditionally defines the HAS_STRTOL symbol, which
2147 indicates to the C program that the strtol() routine is available
2148 to provide better numeric string conversion than atoi() and friends.
2150 d_strtold (d_strtold.U):
2151 This variable conditionally defines the HAS_STRTOLD symbol, which
2152 indicates to the C program that the strtold() routine is available.
2154 d_strtoll (d_strtoll.U):
2155 This variable conditionally defines the HAS_STRTOLL symbol, which
2156 indicates to the C program that the strtoll() routine is available.
2158 d_strtoq (d_strtoq.U):
2159 This variable conditionally defines the HAS_STRTOQ symbol, which
2160 indicates to the C program that the strtoq() routine is available.
2162 d_strtoul (d_strtoul.U):
2163 This variable conditionally defines the HAS_STRTOUL symbol, which
2164 indicates to the C program that the strtoul() routine is available
2165 to provide conversion of strings to unsigned long.
2167 d_strtoull (d_strtoull.U):
2168 This variable conditionally defines the HAS_STRTOULL symbol, which
2169 indicates to the C program that the strtoull() routine is available.
2171 d_strtouq (d_strtouq.U):
2172 This variable conditionally defines the HAS_STRTOUQ symbol, which
2173 indicates to the C program that the strtouq() routine is available.
2175 d_strxfrm (d_strxfrm.U):
2176 This variable conditionally defines HAS_STRXFRM if strxfrm() is
2177 available to transform strings.
2179 d_suidsafe (d_dosuid.U):
2180 This variable conditionally defines SETUID_SCRIPTS_ARE_SECURE_NOW
2181 if setuid scripts can be secure. This test looks in /dev/fd/.
2183 d_symlink (d_symlink.U):
2184 This variable conditionally defines the HAS_SYMLINK symbol, which
2185 indicates to the C program that the symlink() routine is available
2186 to create symbolic links.
2188 d_syscall (d_syscall.U):
2189 This variable conditionally defines HAS_SYSCALL if syscall() is
2190 available call arbitrary system calls.
2192 d_syscallproto (d_syscallproto.U):
2193 This variable conditionally defines the HAS_SYSCALL_PROTO symbol,
2194 which indicates to the C program that the system provides
2195 a prototype for the syscall() function. Otherwise, it is
2196 up to the program to supply one.
2198 d_sysconf (d_sysconf.U):
2199 This variable conditionally defines the HAS_SYSCONF symbol, which
2200 indicates to the C program that the sysconf() routine is available
2201 to determine system related limits and options.
2203 d_sysernlst (d_strerror.U):
2204 This variable conditionally defines HAS_SYS_ERRNOLIST if sys_errnolist[]
2205 is available to translate error numbers to the symbolic name.
2207 d_syserrlst (d_strerror.U):
2208 This variable conditionally defines HAS_SYS_ERRLIST if sys_errlist[] is
2209 available to translate error numbers to strings.
2211 d_system (d_system.U):
2212 This variable conditionally defines HAS_SYSTEM if system() is
2213 available to issue a shell command.
2215 d_tcgetpgrp (d_tcgtpgrp.U):
2216 This variable conditionally defines the HAS_TCGETPGRP symbol, which
2217 indicates to the C program that the tcgetpgrp() routine is available.
2218 to get foreground process group ID.
2220 d_tcsetpgrp (d_tcstpgrp.U):
2221 This variable conditionally defines the HAS_TCSETPGRP symbol, which
2222 indicates to the C program that the tcsetpgrp() routine is available
2223 to set foreground process group ID.
2225 d_telldir (d_readdir.U):
2226 This variable conditionally defines HAS_TELLDIR if telldir() is
2229 d_telldirproto (d_telldirproto.U):
2230 This variable conditionally defines the HAS_TELLDIR_PROTO symbol,
2231 which indicates to the C program that the system provides
2232 a prototype for the telldir() function. Otherwise, it is
2233 up to the program to supply one.
2236 This variable conditionally defines the HAS_TIME symbol, which indicates
2237 that the time() routine exists. The time() routine is normaly
2238 provided on UNIX systems.
2240 d_timegm (d_timegm.U):
2241 This variable conditionally defines the HAS_TIMEGM symbol, which
2242 indicates to the C program that the timegm () routine is available.
2244 d_times (d_times.U):
2245 This variable conditionally defines the HAS_TIMES symbol, which indicates
2246 that the times() routine exists. The times() routine is normaly
2247 provided on UNIX systems. You may have to include <sys/times.h>.
2249 d_tm_tm_gmtoff (i_time.U):
2250 This variable conditionally defines HAS_TM_TM_GMTOFF, which indicates
2251 indicates to the C program that the struct tm has the tm_gmtoff field.
2253 d_tm_tm_zone (i_time.U):
2254 This variable conditionally defines HAS_TM_TM_ZONE, which indicates
2255 indicates to the C program that the struct tm has the tm_zone field.
2257 d_tmpnam_r (d_tmpnam_r.U):
2258 This variable conditionally defines the HAS_TMPNAM_R symbol,
2259 which indicates to the C program that the tmpnam_r()
2260 routine is available.
2262 d_truncate (d_truncate.U):
2263 This variable conditionally defines HAS_TRUNCATE if truncate() is
2264 available to truncate files.
2266 d_ttyname_r (d_ttyname_r.U):
2267 This variable conditionally defines the HAS_TTYNAME_R symbol,
2268 which indicates to the C program that the ttyname_r()
2269 routine is available.
2271 d_tzname (d_tzname.U):
2272 This variable conditionally defines HAS_TZNAME if tzname[] is
2273 available to access timezone names.
2275 d_u32align (d_u32align.U):
2276 This variable tells whether you must access character data
2277 through U32-aligned pointers.
2279 d_ualarm (d_ualarm.U):
2280 This variable conditionally defines the HAS_UALARM symbol, which
2281 indicates to the C program that the ualarm() routine is available.
2283 d_umask (d_umask.U):
2284 This variable conditionally defines the HAS_UMASK symbol, which
2285 indicates to the C program that the umask() routine is available.
2286 to set and get the value of the file creation mask.
2288 d_uname (d_gethname.U):
2289 This variable conditionally defines the HAS_UNAME symbol, which
2290 indicates to the C program that the uname() routine may be
2291 used to derive the host name.
2293 d_union_semun (d_union_semun.U):
2294 This variable conditionally defines HAS_UNION_SEMUN if the
2295 union semun is defined by including <sys/sem.h>.
2297 d_unordered (d_unordered.U):
2298 This variable conditionally defines the HAS_UNORDERED symbol, which
2299 indicates to the C program that the unordered() routine is available.
2301 d_unsetenv (d_unsetenv.U):
2302 This variable conditionally defines the HAS_UNSETENV symbol, which
2303 indicates to the C program that the unsetenv () routine is available.
2305 d_usleep (d_usleep.U):
2306 This variable conditionally defines HAS_USLEEP if usleep() is
2307 available to do high granularity sleeps.
2309 d_usleepproto (d_usleepproto.U):
2310 This variable conditionally defines the HAS_USLEEP_PROTO symbol,
2311 which indicates to the C program that the system provides
2312 a prototype for the usleep() function. Otherwise, it is
2313 up to the program to supply one.
2315 d_ustat (d_ustat.U):
2316 This variable conditionally defines HAS_USTAT if ustat() is
2317 available to query file system statistics by dev_t.
2319 d_vendorarch (vendorarch.U):
2320 This variable conditionally defined PERL_VENDORARCH.
2322 d_vendorbin (vendorbin.U):
2323 This variable conditionally defines PERL_VENDORBIN.
2325 d_vendorlib (vendorlib.U):
2326 This variable conditionally defines PERL_VENDORLIB.
2328 d_vendorscript (vendorscript.U):
2329 This variable conditionally defines PERL_VENDORSCRIPT.
2331 d_vfork (d_vfork.U):
2332 This variable conditionally defines the HAS_VFORK symbol, which
2333 indicates the vfork() routine is available.
2335 d_void_closedir (d_closedir.U):
2336 This variable conditionally defines VOID_CLOSEDIR if closedir()
2337 does not return a value.
2339 d_voidsig (d_voidsig.U):
2340 This variable conditionally defines VOIDSIG if this system
2341 declares "void (*signal(...))()" in signal.h. The old way was to
2342 declare it as "int (*signal(...))()".
2344 d_voidtty (i_sysioctl.U):
2345 This variable conditionally defines USE_IOCNOTTY to indicate that the
2346 ioctl() call with TIOCNOTTY should be used to void tty association.
2347 Otherwise (on USG probably), it is enough to close the standard file
2348 decriptors and do a setpgrp().
2350 d_volatile (d_volatile.U):
2351 This variable conditionally defines the HASVOLATILE symbol, which
2352 indicates to the C program that this C compiler knows about the
2353 volatile declaration.
2355 d_vprintf (d_vprintf.U):
2356 This variable conditionally defines the HAS_VPRINTF symbol, which
2357 indicates to the C program that the vprintf() routine is available
2358 to printf with a pointer to an argument list.
2360 d_vsnprintf (d_snprintf.U):
2361 This variable conditionally defines the HAS_VSNPRINTF symbol, which
2362 indicates to the C program that the vsnprintf () library function
2365 d_wait4 (d_wait4.U):
2366 This variable conditionally defines the HAS_WAIT4 symbol, which
2367 indicates the wait4() routine is available.
2369 d_waitpid (d_waitpid.U):
2370 This variable conditionally defines HAS_WAITPID if waitpid() is
2371 available to wait for child process.
2373 d_wcstombs (d_wcstombs.U):
2374 This variable conditionally defines the HAS_WCSTOMBS symbol, which
2375 indicates to the C program that the wcstombs() routine is available
2376 to convert wide character strings to multibyte strings.
2378 d_wctomb (d_wctomb.U):
2379 This variable conditionally defines the HAS_WCTOMB symbol, which
2380 indicates to the C program that the wctomb() routine is available
2381 to convert a wide character to a multibyte.
2383 d_writev (d_writev.U):
2384 This variable conditionally defines the HAS_WRITEV symbol, which
2385 indicates to the C program that the writev() routine is available.
2388 This variable conditionally defines the symbol XENIX, which alerts
2389 the C program that it runs under Xenix.
2392 This variable is used internally by Configure to determine the
2393 full pathname (if any) of the date program. After Configure runs,
2394 the value is reset to a plain "date" and is not useful.
2396 db_hashtype (i_db.U):
2397 This variable contains the type of the hash structure element
2398 in the <db.h> header file. In older versions of DB, it was
2399 int, while in newer ones it is u_int32_t.
2401 db_prefixtype (i_db.U):
2402 This variable contains the type of the prefix structure element
2403 in the <db.h> header file. In older versions of DB, it was
2404 int, while in newer ones it is size_t.
2406 db_version_major (i_db.U):
2407 This variable contains the major version number of
2408 Berkeley DB found in the <db.h> header file.
2410 db_version_minor (i_db.U):
2411 This variable contains the minor version number of
2412 Berkeley DB found in the <db.h> header file.
2413 For DB version 1 this is always 0.
2415 db_version_patch (i_db.U):
2416 This variable contains the patch version number of
2417 Berkeley DB found in the <db.h> header file.
2418 For DB version 1 this is always 0.
2420 defvoidused (voidflags.U):
2421 This variable contains the default value of the VOIDUSED symbol (15).
2423 direntrytype (i_dirent.U):
2424 This symbol is set to 'struct direct' or 'struct dirent' depending on
2425 whether dirent is available or not. You should use this pseudo type to
2426 portably declare your directory entries.
2429 This variable contains the extension that is to be used for the
2430 dynamically loaded modules that perl generaties.
2433 This variable contains the name of the dynamic loading file that
2434 will be used with the package.
2436 doublesize (doublesize.U):
2437 This variable contains the value of the DOUBLESIZE symbol, which
2438 indicates to the C program how many bytes there are in a double.
2440 drand01 (randfunc.U):
2441 Indicates the macro to be used to generate normalized
2442 random numbers. Uses randfunc, often divided by
2443 (double) (((unsigned long) 1 << randbits)) in order to
2444 normalize the result.
2445 In C programs, the macro 'Drand01' is mapped to drand01.
2447 drand48_r_proto (d_drand48_r.U):
2448 This variable encodes the prototype of drand48_r.
2449 It is zero if d_drand48_r is undef, and one of the
2450 REENTRANT_PROTO_T_ABC macros of reentr.h if d_drand48_r
2453 dtrace (usedtrace.U):
2454 This variable holds the location of the dtrace executable.
2456 dynamic_ext (Extensions.U):
2457 This variable holds a list of XS extension files we want to
2458 link dynamically into the package. It is used by Makefile.
2460 eagain (nblock_io.U):
2461 This variable bears the symbolic errno code set by read() when no
2462 data is present on the file and non-blocking I/O was enabled (otherwise,
2463 read() blocks naturally).
2466 This variable conditionally defines EBCDIC if this
2467 system uses EBCDIC encoding. Among other things, this
2468 means that the character ranges are not contiguous.
2472 This variable is used internally by Configure to determine the
2473 full pathname (if any) of the echo program. After Configure runs,
2474 the value is reset to a plain "echo" and is not useful.
2477 This variable is used internally by Configure to determine the
2478 full pathname (if any) of the egrep program. After Configure runs,
2479 the value is reset to a plain "egrep" and is not useful.
2482 This variable is defined but not used by Configure.
2483 The value is a plain '' and is not useful.
2485 endgrent_r_proto (d_endgrent_r.U):
2486 This variable encodes the prototype of endgrent_r.
2487 It is zero if d_endgrent_r is undef, and one of the
2488 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endgrent_r
2491 endhostent_r_proto (d_endhostent_r.U):
2492 This variable encodes the prototype of endhostent_r.
2493 It is zero if d_endhostent_r is undef, and one of the
2494 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endhostent_r
2497 endnetent_r_proto (d_endnetent_r.U):
2498 This variable encodes the prototype of endnetent_r.
2499 It is zero if d_endnetent_r is undef, and one of the
2500 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endnetent_r
2503 endprotoent_r_proto (d_endprotoent_r.U):
2504 This variable encodes the prototype of endprotoent_r.
2505 It is zero if d_endprotoent_r is undef, and one of the
2506 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endprotoent_r
2509 endpwent_r_proto (d_endpwent_r.U):
2510 This variable encodes the prototype of endpwent_r.
2511 It is zero if d_endpwent_r is undef, and one of the
2512 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endpwent_r
2515 endservent_r_proto (d_endservent_r.U):
2516 This variable encodes the prototype of endservent_r.
2517 It is zero if d_endservent_r is undef, and one of the
2518 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endservent_r
2522 When running under Eunice this variable contains a command which will
2523 convert a shell script to the proper form of text file for it to be
2524 executable by the shell. On other systems it is a no-op.
2527 This is an old synonym for _exe.
2530 This variable is used internally by Configure to determine the
2531 full pathname (if any) of the expr program. After Configure runs,
2532 the value is reset to a plain "expr" and is not useful.
2534 extensions (Extensions.U):
2535 This variable holds a list of all extension files (both XS and
2536 non-xs linked into the package. It is propagated to Config.pm
2537 and is typically used to test whether a particular extesion
2541 ANSI C requires 'extern' where C++ requires 'extern "C"'. This
2542 variable can be used in Configure to do the right thing.
2545 This variable holds a list of extra modules to install.
2547 fflushall (fflushall.U):
2548 This symbol, if defined, tells that to flush
2549 all pending stdio output one must loop through all
2550 the stdio file handles stored in an array and fflush them.
2551 Note that if fflushNULL is defined, fflushall will not
2552 even be probed for and will be left undefined.
2554 fflushNULL (fflushall.U):
2555 This symbol, if defined, tells that fflush(NULL) does flush
2556 all pending stdio output.
2559 This variable is defined but not used by Configure.
2560 The value is a plain '' and is not useful.
2562 firstmakefile (Unix.U):
2563 This variable defines the first file searched by make. On unix,
2564 it is makefile (then Makefile). On case-insensitive systems,
2565 it might be something else. This is only used to deal with
2566 convoluted make depend tricks.
2569 This variable is defined but not used by Configure.
2570 The value is a plain '' and is not useful.
2572 fpossize (fpossize.U):
2573 This variable contains the size of a fpostype in bytes.
2575 fpostype (fpostype.U):
2576 This variable defines Fpos_t to be something like fpos_t, long,
2577 uint, or whatever type is used to declare file positions in libc.
2579 freetype (mallocsrc.U):
2580 This variable contains the return type of free(). It is usually
2581 void, but occasionally int.
2584 This variable contains the command used by Configure
2585 to copy files from the target host. Useful and available
2586 only during Perl build.
2587 The string ':' if not cross-compiling.
2590 This variable contains the full pathname to 'ar', whether or
2591 not the user has specified 'portability'. This is only used
2595 This variable contains the full pathname to 'csh', whether or
2596 not the user has specified 'portability'. This is only used
2597 in the compiled C program, and we assume that all systems which
2598 can share this executable will have the same full pathname to
2601 full_sed (Loc_sed.U):
2602 This variable contains the full pathname to 'sed', whether or
2603 not the user has specified 'portability'. This is only used
2604 in the compiled C program, and we assume that all systems which
2605 can share this executable will have the same full pathname to
2608 gccansipedantic (gccvers.U):
2609 If GNU cc (gcc) is used, this variable will enable (if set) the
2610 -ansi and -pedantic ccflags for building core files (through
2611 cflags script). (See Porting/pumpkin.pod for full description).
2613 gccosandvers (gccvers.U):
2614 If GNU cc (gcc) is used, this variable holds the operating system
2615 and version used to compile gcc. It is set to '' if not gcc,
2616 or if nothing useful can be parsed as the os version.
2618 gccversion (gccvers.U):
2619 If GNU cc (gcc) is used, this variable holds '1' or '2' to
2620 indicate whether the compiler is version 1 or 2. This is used in
2621 setting some of the default cflags. It is set to '' if not gcc.
2623 getgrent_r_proto (d_getgrent_r.U):
2624 This variable encodes the prototype of getgrent_r.
2625 It is zero if d_getgrent_r is undef, and one of the
2626 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrent_r
2629 getgrgid_r_proto (d_getgrgid_r.U):
2630 This variable encodes the prototype of getgrgid_r.
2631 It is zero if d_getgrgid_r is undef, and one of the
2632 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrgid_r
2635 getgrnam_r_proto (d_getgrnam_r.U):
2636 This variable encodes the prototype of getgrnam_r.
2637 It is zero if d_getgrnam_r is undef, and one of the
2638 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrnam_r
2641 gethostbyaddr_r_proto (d_gethostbyaddr_r.U):
2642 This variable encodes the prototype of gethostbyaddr_r.
2643 It is zero if d_gethostbyaddr_r is undef, and one of the
2644 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyaddr_r
2647 gethostbyname_r_proto (d_gethostbyname_r.U):
2648 This variable encodes the prototype of gethostbyname_r.
2649 It is zero if d_gethostbyname_r is undef, and one of the
2650 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyname_r
2653 gethostent_r_proto (d_gethostent_r.U):
2654 This variable encodes the prototype of gethostent_r.
2655 It is zero if d_gethostent_r is undef, and one of the
2656 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostent_r
2659 getlogin_r_proto (d_getlogin_r.U):
2660 This variable encodes the prototype of getlogin_r.
2661 It is zero if d_getlogin_r is undef, and one of the
2662 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getlogin_r
2665 getnetbyaddr_r_proto (d_getnetbyaddr_r.U):
2666 This variable encodes the prototype of getnetbyaddr_r.
2667 It is zero if d_getnetbyaddr_r is undef, and one of the
2668 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyaddr_r
2671 getnetbyname_r_proto (d_getnetbyname_r.U):
2672 This variable encodes the prototype of getnetbyname_r.
2673 It is zero if d_getnetbyname_r is undef, and one of the
2674 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyname_r
2677 getnetent_r_proto (d_getnetent_r.U):
2678 This variable encodes the prototype of getnetent_r.
2679 It is zero if d_getnetent_r is undef, and one of the
2680 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetent_r
2683 getprotobyname_r_proto (d_getprotobyname_r.U):
2684 This variable encodes the prototype of getprotobyname_r.
2685 It is zero if d_getprotobyname_r is undef, and one of the
2686 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobyname_r
2689 getprotobynumber_r_proto (d_getprotobynumber_r.U):
2690 This variable encodes the prototype of getprotobynumber_r.
2691 It is zero if d_getprotobynumber_r is undef, and one of the
2692 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobynumber_r
2695 getprotoent_r_proto (d_getprotoent_r.U):
2696 This variable encodes the prototype of getprotoent_r.
2697 It is zero if d_getprotoent_r is undef, and one of the
2698 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotoent_r
2701 getpwent_r_proto (d_getpwent_r.U):
2702 This variable encodes the prototype of getpwent_r.
2703 It is zero if d_getpwent_r is undef, and one of the
2704 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwent_r
2707 getpwnam_r_proto (d_getpwnam_r.U):
2708 This variable encodes the prototype of getpwnam_r.
2709 It is zero if d_getpwnam_r is undef, and one of the
2710 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwnam_r
2713 getpwuid_r_proto (d_getpwuid_r.U):
2714 This variable encodes the prototype of getpwuid_r.
2715 It is zero if d_getpwuid_r is undef, and one of the
2716 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwuid_r
2719 getservbyname_r_proto (d_getservbyname_r.U):
2720 This variable encodes the prototype of getservbyname_r.
2721 It is zero if d_getservbyname_r is undef, and one of the
2722 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyname_r
2725 getservbyport_r_proto (d_getservbyport_r.U):
2726 This variable encodes the prototype of getservbyport_r.
2727 It is zero if d_getservbyport_r is undef, and one of the
2728 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyport_r
2731 getservent_r_proto (d_getservent_r.U):
2732 This variable encodes the prototype of getservent_r.
2733 It is zero if d_getservent_r is undef, and one of the
2734 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservent_r
2737 getspnam_r_proto (d_getspnam_r.U):
2738 This variable encodes the prototype of getspnam_r.
2739 It is zero if d_getspnam_r is undef, and one of the
2740 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getspnam_r
2744 This variable contains the format string used for printing a Gid_t.
2746 gidsign (gidsign.U):
2747 This variable contains the signedness of a gidtype.
2748 1 for unsigned, -1 for signed.
2750 gidsize (gidsize.U):
2751 This variable contains the size of a gidtype in bytes.
2753 gidtype (gidtype.U):
2754 This variable defines Gid_t to be something like gid_t, int,
2755 ushort, or whatever type is used to declare the return type
2756 of getgid(). Typically, it is the type of group ids in the kernel.
2759 This variable holds the general path (space-separated) used to
2760 find libraries. It may contain directories that do not exist on
2761 this platform, libpth is the cleaned-up version.
2764 This variable is used internally by Configure to determine the
2765 full pathname (if any) of the gmake program. After Configure runs,
2766 the value is reset to a plain "gmake" and is not useful.
2768 gmtime_r_proto (d_gmtime_r.U):
2769 This variable encodes the prototype of gmtime_r.
2770 It is zero if d_gmtime_r is undef, and one of the
2771 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gmtime_r
2774 gnulibc_version (d_gnulibc.U):
2775 This variable contains the version number of the GNU C library.
2776 It is usually something like '2.2.5'. It is a plain '' if this
2777 is not the GNU C library, or if the version is unknown.
2780 This variable is used internally by Configure to determine the
2781 full pathname (if any) of the grep program. After Configure runs,
2782 the value is reset to a plain "grep" and is not useful.
2785 This variable contains a command that produces the text of the
2786 /etc/group file. This is normally "cat /etc/group", but can be
2787 "ypcat group" when NIS is used.
2788 On some systems, such as os390, there may be no equivalent
2789 command, in which case this variable is unset.
2791 groupstype (groupstype.U):
2792 This variable defines Groups_t to be something like gid_t, int,
2793 ushort, or whatever type is used for the second argument to
2794 getgroups() and setgroups(). Usually, this is the same as
2795 gidtype (gid_t), but sometimes it isn't.
2798 This variable is used internally by Configure to determine the
2799 full pathname (if any) of the gzip program. After Configure runs,
2800 the value is reset to a plain "gzip" and is not useful.
2802 h_fcntl (h_fcntl.U):
2803 This is variable gets set in various places to tell i_fcntl that
2804 <fcntl.h> should be included.
2806 h_sysfile (h_sysfile.U):
2807 This is variable gets set in various places to tell i_sys_file that
2808 <sys/file.h> should be included.
2811 Gives the type of hints used for previous answers. May be one of
2812 "default", "recommended" or "previous".
2815 This variable contains a command that produces the text of the
2816 /etc/hosts file. This is normally "cat /etc/hosts", but can be
2817 "ypcat hosts" when NIS is used.
2818 On some systems, such as os390, there may be no equivalent
2819 command, in which case this variable is unset.
2821 html1dir (html1dir.U):
2822 This variable contains the name of the directory in which html
2823 source pages are to be put. This directory is for pages
2824 that describe whole programs, not libraries or modules. It
2825 is intended to correspond roughly to section 1 of the Unix
2828 html1direxp (html1dir.U):
2829 This variable is the same as the html1dir variable, but is filename
2830 expanded at configuration time, for convenient use in makefiles.
2832 html3dir (html3dir.U):
2833 This variable contains the name of the directory in which html
2834 source pages are to be put. This directory is for pages
2835 that describe libraries or modules. It is intended to
2836 correspond roughly to section 3 of the Unix manuals.
2838 html3direxp (html3dir.U):
2839 This variable is the same as the html3dir variable, but is filename
2840 expanded at configuration time, for convenient use in makefiles.
2843 This variable is the size of an I16 in bytes.
2846 This variable contains the C type used for Perl's I16.
2849 This variable is the size of an I32 in bytes.
2852 This variable contains the C type used for Perl's I32.
2855 This variable is the size of an I64 in bytes.
2858 This variable contains the C type used for Perl's I64.
2861 This variable is the size of an I8 in bytes.
2864 This variable contains the C type used for Perl's I8.
2866 i_arpainet (i_arpainet.U):
2867 This variable conditionally defines the I_ARPA_INET symbol,
2868 and indicates whether a C program should include <arpa/inet.h>.
2870 i_assert (i_assert.U):
2871 This variable conditionally defines the I_ASSERT symbol, which
2872 indicates to the C program that <assert.h> exists and could be
2875 i_bsdioctl (i_sysioctl.U):
2876 This variable conditionally defines the I_SYS_BSDIOCTL symbol, which
2877 indicates to the C program that <sys/bsdioctl.h> exists and should
2880 i_crypt (i_crypt.U):
2881 This variable conditionally defines the I_CRYPT symbol, and indicates
2882 whether a C program should include <crypt.h>.
2885 This variable conditionally defines the I_DB symbol, and indicates
2886 whether a C program may include Berkeley's DB include file <db.h>.
2889 This variable conditionally defines the I_DBM symbol, which
2890 indicates to the C program that <dbm.h> exists and should
2893 i_dirent (i_dirent.U):
2894 This variable conditionally defines I_DIRENT, which indicates
2895 to the C program that it should include <dirent.h>.
2898 This variable conditionally defines the I_DLD symbol, which
2899 indicates to the C program that <dld.h> (GNU dynamic loading)
2900 exists and should be included.
2902 i_dlfcn (i_dlfcn.U):
2903 This variable conditionally defines the I_DLFCN symbol, which
2904 indicates to the C program that <dlfcn.h> exists and should
2907 i_fcntl (i_fcntl.U):
2908 This variable controls the value of I_FCNTL (which tells
2909 the C program to include <fcntl.h>).
2911 i_float (i_float.U):
2912 This variable conditionally defines the I_FLOAT symbol, and indicates
2913 whether a C program may include <float.h> to get symbols like DBL_MAX
2914 or DBL_MIN, i.e. machine dependent floating point values.
2917 This variable conditionally defines the I_FP symbol, and indicates
2918 whether a C program should include <fp.h>.
2920 i_fp_class (i_fp_class.U):
2921 This variable conditionally defines the I_FP_CLASS symbol, and indicates
2922 whether a C program should include <fp_class.h>.
2925 This variable conditionally defines the I_GDBM symbol, which
2926 indicates to the C program that <gdbm.h> exists and should
2929 i_gdbm_ndbm (i_ndbm.U):
2930 This variable conditionally defines the I_GDBM_NDBM symbol, which
2931 indicates to the C program that <gdbm-ndbm.h> exists and should
2932 be included. This is the location of the ndbm.h compatibility file
2935 i_gdbmndbm (i_ndbm.U):
2936 This variable conditionally defines the I_GDBMNDBM symbol, which
2937 indicates to the C program that <gdbm/ndbm.h> exists and should
2938 be included. This was the location of the ndbm.h compatibility file
2942 This variable conditionally defines the I_GRP symbol, and indicates
2943 whether a C program should include <grp.h>.
2945 i_ieeefp (i_ieeefp.U):
2946 This variable conditionally defines the I_IEEEFP symbol, and indicates
2947 whether a C program should include <ieeefp.h>.
2949 i_inttypes (i_inttypes.U):
2950 This variable conditionally defines the I_INTTYPES symbol,
2951 and indicates whether a C program should include <inttypes.h>.
2953 i_langinfo (i_langinfo.U):
2954 This variable conditionally defines the I_LANGINFO symbol,
2955 and indicates whether a C program should include <langinfo.h>.
2957 i_libutil (i_libutil.U):
2958 This variable conditionally defines the I_LIBUTIL symbol, and indicates
2959 whether a C program should include <libutil.h>.
2961 i_limits (i_limits.U):
2962 This variable conditionally defines the I_LIMITS symbol, and indicates
2963 whether a C program may include <limits.h> to get symbols like WORD_BIT
2966 i_locale (i_locale.U):
2967 This variable conditionally defines the I_LOCALE symbol,
2968 and indicates whether a C program should include <locale.h>.
2970 i_machcthr (i_machcthr.U):
2971 This variable conditionally defines the I_MACH_CTHREADS symbol,
2972 and indicates whether a C program should include <mach/cthreads.h>.
2974 i_malloc (i_malloc.U):
2975 This variable conditionally defines the I_MALLOC symbol, and indicates
2976 whether a C program should include <malloc.h>.
2978 i_mallocmalloc (i_mallocmalloc.U):
2979 This variable conditionally defines the I_MALLOCMALLOC symbol,
2980 and indicates whether a C program should include <malloc/malloc.h>.
2983 This variable conditionally defines the I_MATH symbol, and indicates
2984 whether a C program may include <math.h>.
2986 i_memory (i_memory.U):
2987 This variable conditionally defines the I_MEMORY symbol, and indicates
2988 whether a C program should include <memory.h>.
2990 i_mntent (i_mntent.U):
2991 This variable conditionally defines the I_MNTENT symbol, and indicates
2992 whether a C program should include <mntent.h>.
2995 This variable conditionally defines the I_NDBM symbol, which
2996 indicates to the C program that <ndbm.h> exists and should
2999 i_netdb (i_netdb.U):
3000 This variable conditionally defines the I_NETDB symbol, and indicates
3001 whether a C program should include <netdb.h>.
3003 i_neterrno (i_neterrno.U):
3004 This variable conditionally defines the I_NET_ERRNO symbol, which
3005 indicates to the C program that <net/errno.h> exists and should
3008 i_netinettcp (i_netinettcp.U):
3009 This variable conditionally defines the I_NETINET_TCP symbol,
3010 and indicates whether a C program should include <netinet/tcp.h>.
3013 This variable conditionally defines I_NETINET_IN, which indicates
3014 to the C program that it should include <netinet/in.h>. Otherwise,
3015 you may try <sys/in.h>.
3018 This variable conditionally defines the I_POLL symbol, and indicates
3019 whether a C program should include <poll.h>.
3022 This variable conditionally defines the I_PROT symbol, and indicates
3023 whether a C program should include <prot.h>.
3025 i_pthread (i_pthread.U):
3026 This variable conditionally defines the I_PTHREAD symbol,
3027 and indicates whether a C program should include <pthread.h>.
3030 This variable conditionally defines I_PWD, which indicates
3031 to the C program that it should include <pwd.h>.
3033 i_rpcsvcdbm (i_dbm.U):
3034 This variable conditionally defines the I_RPCSVC_DBM symbol, which
3035 indicates to the C program that <rpcsvc/dbm.h> exists and should
3036 be included. Some System V systems might need this instead of <dbm.h>.
3039 This variable conditionally defines the I_SFIO symbol,
3040 and indicates whether a C program should include <sfio.h>.
3042 i_sgtty (i_termio.U):
3043 This variable conditionally defines the I_SGTTY symbol, which
3044 indicates to the C program that it should include <sgtty.h> rather
3047 i_shadow (i_shadow.U):
3048 This variable conditionally defines the I_SHADOW symbol, and indicates
3049 whether a C program should include <shadow.h>.
3051 i_socks (i_socks.U):
3052 This variable conditionally defines the I_SOCKS symbol, and indicates
3053 whether a C program should include <socks.h>.
3055 i_stdarg (i_varhdr.U):
3056 This variable conditionally defines the I_STDARG symbol, which
3057 indicates to the C program that <stdarg.h> exists and should
3060 i_stddef (i_stddef.U):
3061 This variable conditionally defines the I_STDDEF symbol, which
3062 indicates to the C program that <stddef.h> exists and should
3065 i_stdlib (i_stdlib.U):
3066 This variable conditionally defines the I_STDLIB symbol, which
3067 indicates to the C program that <stdlib.h> exists and should
3070 i_string (i_string.U):
3071 This variable conditionally defines the I_STRING symbol, which
3072 indicates that <string.h> should be included rather than <strings.h>.
3074 i_sunmath (i_sunmath.U):
3075 This variable conditionally defines the I_SUNMATH symbol, and indicates
3076 whether a C program should include <sunmath.h>.
3078 i_sysaccess (i_sysaccess.U):
3079 This variable conditionally defines the I_SYS_ACCESS symbol,
3080 and indicates whether a C program should include <sys/access.h>.
3082 i_sysdir (i_sysdir.U):
3083 This variable conditionally defines the I_SYS_DIR symbol, and indicates
3084 whether a C program should include <sys/dir.h>.
3086 i_sysfile (i_sysfile.U):
3087 This variable conditionally defines the I_SYS_FILE symbol, and indicates
3088 whether a C program should include <sys/file.h> to get R_OK and friends.
3090 i_sysfilio (i_sysioctl.U):
3091 This variable conditionally defines the I_SYS_FILIO symbol, which
3092 indicates to the C program that <sys/filio.h> exists and should
3093 be included in preference to <sys/ioctl.h>.
3096 This variable conditionally defines I_SYS_IN, which indicates
3097 to the C program that it should include <sys/in.h> instead of
3100 i_sysioctl (i_sysioctl.U):
3101 This variable conditionally defines the I_SYS_IOCTL symbol, which
3102 indicates to the C program that <sys/ioctl.h> exists and should
3105 i_syslog (i_syslog.U):
3106 This variable conditionally defines the I_SYSLOG symbol,
3107 and indicates whether a C program should include <syslog.h>.
3109 i_sysmman (i_sysmman.U):
3110 This variable conditionally defines the I_SYS_MMAN symbol, and
3111 indicates whether a C program should include <sys/mman.h>.
3113 i_sysmode (i_sysmode.U):
3114 This variable conditionally defines the I_SYSMODE symbol,
3115 and indicates whether a C program should include <sys/mode.h>.
3117 i_sysmount (i_sysmount.U):
3118 This variable conditionally defines the I_SYSMOUNT symbol,
3119 and indicates whether a C program should include <sys/mount.h>.
3121 i_sysndir (i_sysndir.U):
3122 This variable conditionally defines the I_SYS_NDIR symbol, and indicates
3123 whether a C program should include <sys/ndir.h>.
3125 i_sysparam (i_sysparam.U):
3126 This variable conditionally defines the I_SYS_PARAM symbol, and indicates
3127 whether a C program should include <sys/param.h>.
3129 i_syspoll (i_syspoll.U):
3130 This variable conditionally defines the I_SYS_POLL symbol, which
3131 indicates to the C program that it should include <sys/poll.h>.
3133 i_sysresrc (i_sysresrc.U):
3134 This variable conditionally defines the I_SYS_RESOURCE symbol,
3135 and indicates whether a C program should include <sys/resource.h>.
3137 i_syssecrt (i_syssecrt.U):
3138 This variable conditionally defines the I_SYS_SECURITY symbol,
3139 and indicates whether a C program should include <sys/security.h>.
3141 i_sysselct (i_sysselct.U):
3142 This variable conditionally defines I_SYS_SELECT, which indicates
3143 to the C program that it should include <sys/select.h> in order to
3144 get the definition of struct timeval.
3146 i_syssockio (i_sysioctl.U):
3147 This variable conditionally defines I_SYS_SOCKIO to indicate to the
3148 C program that socket ioctl codes may be found in <sys/sockio.h>
3149 instead of <sys/ioctl.h>.
3151 i_sysstat (i_sysstat.U):
3152 This variable conditionally defines the I_SYS_STAT symbol,
3153 and indicates whether a C program should include <sys/stat.h>.
3155 i_sysstatfs (i_sysstatfs.U):
3156 This variable conditionally defines the I_SYSSTATFS symbol,
3157 and indicates whether a C program should include <sys/statfs.h>.
3159 i_sysstatvfs (i_sysstatvfs.U):
3160 This variable conditionally defines the I_SYSSTATVFS symbol,
3161 and indicates whether a C program should include <sys/statvfs.h>.
3163 i_systime (i_time.U):
3164 This variable conditionally defines I_SYS_TIME, which indicates
3165 to the C program that it should include <sys/time.h>.
3167 i_systimek (i_time.U):
3168 This variable conditionally defines I_SYS_TIME_KERNEL, which
3169 indicates to the C program that it should include <sys/time.h>
3170 with KERNEL defined.
3172 i_systimes (i_systimes.U):
3173 This variable conditionally defines the I_SYS_TIMES symbol, and indicates
3174 whether a C program should include <sys/times.h>.
3176 i_systypes (i_systypes.U):
3177 This variable conditionally defines the I_SYS_TYPES symbol,
3178 and indicates whether a C program should include <sys/types.h>.
3180 i_sysuio (i_sysuio.U):
3181 This variable conditionally defines the I_SYSUIO symbol, and indicates
3182 whether a C program should include <sys/uio.h>.
3184 i_sysun (i_sysun.U):
3185 This variable conditionally defines I_SYS_UN, which indicates
3186 to the C program that it should include <sys/un.h> to get UNIX
3187 domain socket definitions.
3189 i_sysutsname (i_sysutsname.U):
3190 This variable conditionally defines the I_SYSUTSNAME symbol,
3191 and indicates whether a C program should include <sys/utsname.h>.
3193 i_sysvfs (i_sysvfs.U):
3194 This variable conditionally defines the I_SYSVFS symbol,
3195 and indicates whether a C program should include <sys/vfs.h>.
3197 i_syswait (i_syswait.U):
3198 This variable conditionally defines I_SYS_WAIT, which indicates
3199 to the C program that it should include <sys/wait.h>.
3201 i_termio (i_termio.U):
3202 This variable conditionally defines the I_TERMIO symbol, which
3203 indicates to the C program that it should include <termio.h> rather
3206 i_termios (i_termio.U):
3207 This variable conditionally defines the I_TERMIOS symbol, which
3208 indicates to the C program that the POSIX <termios.h> file is
3212 This variable conditionally defines I_TIME, which indicates
3213 to the C program that it should include <time.h>.
3215 i_unistd (i_unistd.U):
3216 This variable conditionally defines the I_UNISTD symbol, and indicates
3217 whether a C program should include <unistd.h>.
3219 i_ustat (i_ustat.U):
3220 This variable conditionally defines the I_USTAT symbol, and indicates
3221 whether a C program should include <ustat.h>.
3223 i_utime (i_utime.U):
3224 This variable conditionally defines the I_UTIME symbol, and indicates
3225 whether a C program should include <utime.h>.
3227 i_values (i_values.U):
3228 This variable conditionally defines the I_VALUES symbol, and indicates
3229 whether a C program may include <values.h> to get symbols like MAXLONG
3232 i_varargs (i_varhdr.U):
3233 This variable conditionally defines I_VARARGS, which indicates
3234 to the C program that it should include <varargs.h>.
3236 i_varhdr (i_varhdr.U):
3237 Contains the name of the header to be included to get va_dcl definition.
3238 Typically one of varargs.h or stdarg.h.
3240 i_vfork (i_vfork.U):
3241 This variable conditionally defines the I_VFORK symbol, and indicates
3242 whether a C program should include vfork.h.
3244 ignore_versioned_solibs (libs.U):
3245 This variable should be non-empty if non-versioned shared
3246 libraries (libfoo.so.x.y) are to be ignored (because they
3247 cannot be linked against).
3249 inc_version_list (inc_version_list.U):
3250 This variable specifies the list of subdirectories in over
3251 which perl.c:incpush() and lib/lib.pm will automatically
3252 search when adding directories to @INC. The elements in
3253 the list are separated by spaces. This is only useful
3254 if you have a perl library directory tree structured like the
3255 default one. See INSTALL for how this works. The versioned
3256 site_perl directory was introduced in 5.005, so that is the
3257 lowest possible value.
3259 This list includes architecture-dependent directories back to
3260 version $api_versionstring (e.g. 5.5.640) and
3261 architecture-independent directories all the way back to
3264 inc_version_list_init (inc_version_list.U):
3265 This variable holds the same list as inc_version_list, but
3266 each item is enclosed in double quotes and separated by commas,
3267 suitable for use in the PERL_INC_VERSION_LIST initialization.
3270 This variable must preceed the normal include path to get hte
3271 right one, as in "$incpath/usr/include" or "$incpath/usr/lib".
3272 Value can be "" or "/bsd43" on mips.
3275 This variable is defined but not used by Configure.
3276 The value is a plain '' and is not useful.
3278 initialinstalllocation (bin.U):
3279 When userelocatableinc is true, this variable holds the location
3280 that make install should copy the perl binary to, with all the
3281 run-time relocatable paths calculated from this at install time.
3282 When used, it is initialised to the original value of binexp, and
3283 then binexp is set to '.../', as the other binaries are found
3284 relative to the perl binary.
3286 installarchlib (archlib.U):
3287 This variable is really the same as archlibexp but may differ on
3288 those systems using AFS. For extra portability, only this variable
3289 should be used in makefiles.
3292 This variable is the same as binexp unless AFS is running in which case
3293 the user is explicitely prompted for it. This variable should always
3294 be used in your makefiles for maximum portability.
3296 installhtml1dir (html1dir.U):
3297 This variable is really the same as html1direxp, unless you are
3298 using a different installprefix. For extra portability, you
3299 should only use this variable within your makefiles.
3301 installhtml3dir (html3dir.U):
3302 This variable is really the same as html3direxp, unless you are
3303 using a different installprefix. For extra portability, you
3304 should only use this variable within your makefiles.
3306 installman1dir (man1dir.U):
3307 This variable is really the same as man1direxp, unless you are using
3308 AFS in which case it points to the read/write location whereas
3309 man1direxp only points to the read-only access location. For extra
3310 portability, you should only use this variable within your makefiles.
3312 installman3dir (man3dir.U):
3313 This variable is really the same as man3direxp, unless you are using
3314 AFS in which case it points to the read/write location whereas
3315 man3direxp only points to the read-only access location. For extra
3316 portability, you should only use this variable within your makefiles.
3318 installprefix (installprefix.U):
3319 This variable holds the name of the directory below which
3320 "make install" will install the package. For most users, this
3321 is the same as prefix. However, it is useful for
3322 installing the software into a different (usually temporary)
3323 location after which it can be bundled up and moved somehow
3324 to the final location specified by prefix.
3326 installprefixexp (installprefix.U):
3327 This variable holds the full absolute path of installprefix
3328 with all ~-expansion done.
3330 installprivlib (privlib.U):
3331 This variable is really the same as privlibexp but may differ on
3332 those systems using AFS. For extra portability, only this variable
3333 should be used in makefiles.
3335 installscript (scriptdir.U):
3336 This variable is usually the same as scriptdirexp, unless you are on
3337 a system running AFS, in which case they may differ slightly. You
3338 should always use this variable within your makefiles for portability.
3340 installsitearch (sitearch.U):
3341 This variable is really the same as sitearchexp but may differ on
3342 those systems using AFS. For extra portability, only this variable
3343 should be used in makefiles.
3345 installsitebin (sitebin.U):
3346 This variable is usually the same as sitebinexp, unless you are on
3347 a system running AFS, in which case they may differ slightly. You
3348 should always use this variable within your makefiles for portability.
3350 installsitehtml1dir (sitehtml1dir.U):
3351 This variable is really the same as sitehtml1direxp, unless you are using
3352 AFS in which case it points to the read/write location whereas
3353 html1direxp only points to the read-only access location. For extra
3354 portability, you should only use this variable within your makefiles.
3356 installsitehtml3dir (sitehtml3dir.U):
3357 This variable is really the same as sitehtml3direxp, unless you are using
3358 AFS in which case it points to the read/write location whereas
3359 html3direxp only points to the read-only access location. For extra
3360 portability, you should only use this variable within your makefiles.
3362 installsitelib (sitelib.U):
3363 This variable is really the same as sitelibexp but may differ on
3364 those systems using AFS. For extra portability, only this variable
3365 should be used in makefiles.
3367 installsiteman1dir (siteman1dir.U):
3368 This variable is really the same as siteman1direxp, unless you are using
3369 AFS in which case it points to the read/write location whereas
3370 man1direxp only points to the read-only access location. For extra
3371 portability, you should only use this variable within your makefiles.
3373 installsiteman3dir (siteman3dir.U):
3374 This variable is really the same as siteman3direxp, unless you are using
3375 AFS in which case it points to the read/write location whereas
3376 man3direxp only points to the read-only access location. For extra
3377 portability, you should only use this variable within your makefiles.
3379 installsitescript (sitescript.U):
3380 This variable is usually the same as sitescriptexp, unless you are on
3381 a system running AFS, in which case they may differ slightly. You
3382 should always use this variable within your makefiles for portability.
3384 installstyle (installstyle.U):
3385 This variable describes the "style" of the perl installation.
3386 This is intended to be useful for tools that need to
3387 manipulate entire perl distributions. Perl itself doesn't use
3388 this to find its libraries -- the library directories are
3389 stored directly in Config.pm. Currently, there are only two
3390 styles: "lib" and "lib/perl5". The default library locations
3391 (e.g. privlib, sitelib) are either $prefix/lib or
3392 $prefix/lib/perl5. The former is useful if $prefix is a
3393 directory dedicated to perl (e.g. /opt/perl), while the latter
3394 is useful if $prefix is shared by many packages, e.g. if
3397 Unfortunately, while this "style" variable is used to set
3398 defaults for all three directory hierarchies (core, vendor, and
3399 site), there is no guarantee that the same style is actually
3400 appropriate for all those directories. For example, $prefix
3401 might be /opt/perl, but $siteprefix might be /usr/local.
3402 (Perhaps, in retrospect, the "lib" style should never have been
3403 supported, but it did seem like a nice idea at the time.)
3405 The situation is even less clear for tools such as MakeMaker
3406 that can be used to install additional modules into
3407 non-standard places. For example, if a user intends to install
3408 a module into a private directory (perhaps by setting PREFIX on
3409 the Makefile.PL command line), then there is no reason to
3410 assume that the Configure-time $installstyle setting will be
3411 relevant for that PREFIX.
3413 This may later be extended to include other information, so
3414 be careful with pattern-matching on the results.
3416 For compatibility with perl5.005 and earlier, the default
3417 setting is based on whether or not $prefix contains the string
3420 installusrbinperl (instubperl.U):
3421 This variable tells whether Perl should be installed also as
3422 /usr/bin/perl in addition to
3425 installvendorarch (vendorarch.U):
3426 This variable is really the same as vendorarchexp but may differ on
3427 those systems using AFS. For extra portability, only this variable
3428 should be used in makefiles.
3430 installvendorbin (vendorbin.U):
3431 This variable is really the same as vendorbinexp but may differ on
3432 those systems using AFS. For extra portability, only this variable
3433 should be used in makefiles.
3435 installvendorhtml1dir (vendorhtml1dir.U):
3436 This variable is really the same as vendorhtml1direxp but may differ on
3437 those systems using AFS. For extra portability, only this variable
3438 should be used in makefiles.
3440 installvendorhtml3dir (vendorhtml3dir.U):
3441 This variable is really the same as vendorhtml3direxp but may differ on
3442 those systems using AFS. For extra portability, only this variable
3443 should be used in makefiles.
3445 installvendorlib (vendorlib.U):
3446 This variable is really the same as vendorlibexp but may differ on
3447 those systems using AFS. For extra portability, only this variable
3448 should be used in makefiles.
3450 installvendorman1dir (vendorman1dir.U):
3451 This variable is really the same as vendorman1direxp but may differ on
3452 those systems using AFS. For extra portability, only this variable
3453 should be used in makefiles.
3455 installvendorman3dir (vendorman3dir.U):
3456 This variable is really the same as vendorman3direxp but may differ on
3457 those systems using AFS. For extra portability, only this variable
3458 should be used in makefiles.
3460 installvendorscript (vendorscript.U):
3461 This variable is really the same as vendorscriptexp but may differ on
3462 those systems using AFS. For extra portability, only this variable
3463 should be used in makefiles.
3465 intsize (intsize.U):
3466 This variable contains the value of the INTSIZE symbol, which
3467 indicates to the C program how many bytes there are in an int.
3469 issymlink (issymlink.U):
3470 This variable holds the test command to test for a symbolic link
3471 (if they are supported). Typical values include 'test -h' and
3474 ivdformat (perlxvf.U):
3475 This variable contains the format string used for printing
3476 a Perl IV as a signed decimal integer.
3479 This variable is the size of an IV in bytes.
3482 This variable contains the C type used for Perl's IV.
3484 known_extensions (Extensions.U):
3485 This variable holds a list of all XS extensions included in
3489 This variable is defined but not used by Configure.
3490 The value is a plain '' and is not useful.
3493 This variable indicates the program to be used to link
3494 libraries for dynamic loading. On some systems, it is 'ld'.
3495 On ELF systems, it should be $cc. Mostly, we'll try to respect
3496 the hint file setting.
3498 lddlflags (dlsrc.U):
3499 This variable contains any special flags that might need to be
3500 passed to $ld to create a shared library suitable for dynamic
3501 loading. It is up to the makefile to use it. For hpux, it
3502 should be '-b'. For sunos 4.1, it is empty.
3504 ldflags (ccflags.U):
3505 This variable contains any additional C loader flags desired by
3506 the user. It is up to the Makefile to use this.
3508 ldflags_uselargefiles (uselfs.U):
3509 This variable contains the loader flags needed by large file builds
3510 and added to ldflags by hints files.
3512 ldlibpthname (libperl.U):
3513 This variable holds the name of the shared library
3514 search path, often LD_LIBRARY_PATH. To get an empty
3515 string, the hints file must set this to 'none'.
3518 This variable is used internally by Configure to determine the
3519 full pathname (if any) of the less program. After Configure runs,
3520 the value is reset to a plain "less" and is not useful.
3523 This is an old synonym for _a.
3526 This variable contains the location of the C library.
3528 libperl (libperl.U):
3529 The perl executable is obtained by linking perlmain.c with
3530 libperl, any static extensions (usually just DynaLoader),
3531 and any other libraries needed on this system. libperl
3532 is usually libperl.a, but can also be libperl.so.xxx if
3533 the user wishes to build a perl executable with a shared
3537 This variable holds the general path (space-separated) used to find
3538 libraries. It is intended to be used by other units.
3541 This variable holds the additional libraries we want to use.
3542 It is up to the Makefile to deal with it. The list can be empty.
3545 This variable holds the directory names aka dirnames of the libraries
3546 we found and accepted, duplicates are removed.
3549 This variable holds the filenames aka basenames of the libraries
3550 we found and accepted.
3553 This variable holds the full pathnames of the libraries
3554 we found and accepted.
3557 This variable holds the directory names probed for libraries.
3559 libswanted (Myinit.U):
3560 This variable holds a list of all the libraries we want to
3561 search. The order is chosen to pick up the c library
3562 ahead of ucb or bsd libraries for SVR4.
3564 libswanted_uselargefiles (uselfs.U):
3565 This variable contains the libraries needed by large file builds
3566 and added to ldflags by hints files. It is a space separated list
3567 of the library names without the "lib" prefix or any suffix, just
3571 This variable is defined but not used by Configure.
3572 The value is a plain '' and is not useful.
3575 This variable is defined but not used by Configure.
3576 The value is a plain '' and is not useful.
3578 lkflags (ccflags.U):
3579 This variable contains any additional C partial linker flags desired by
3580 the user. It is up to the Makefile to use this.
3583 This variable is used internally by Configure to determine the
3584 full pathname (if any) of the ln program. After Configure runs,
3585 the value is reset to a plain "ln" and is not useful.
3588 This variable holds the name of the command to make
3589 symbolic links (if they are supported). It can be used
3590 in the Makefile. It is either 'ln -s' or 'ln'
3592 localtime_r_proto (d_localtime_r.U):
3593 This variable encodes the prototype of localtime_r.
3594 It is zero if d_localtime_r is undef, and one of the
3595 REENTRANT_PROTO_T_ABC macros of reentr.h if d_localtime_r
3598 locincpth (ccflags.U):
3599 This variable contains a list of additional directories to be
3600 searched by the compiler. The appropriate '-I' directives will
3601 be added to ccflags. This is intended to simplify setting
3602 local directories from the Configure command line.
3603 It's not much, but it parallels the loclibpth stuff in libpth.U.
3605 loclibpth (libpth.U):
3606 This variable holds the paths (space-separated) used to find local
3607 libraries. It is prepended to libpth, and is intended to be easily
3608 set from the command line.
3610 longdblsize (d_longdbl.U):
3611 This variable contains the value of the LONG_DOUBLESIZE symbol, which
3612 indicates to the C program how many bytes there are in a long double,
3613 if this system supports long doubles.
3615 longlongsize (d_longlong.U):
3616 This variable contains the value of the LONGLONGSIZE symbol, which
3617 indicates to the C program how many bytes there are in a long long,
3618 if this system supports long long.
3620 longsize (intsize.U):
3621 This variable contains the value of the LONGSIZE symbol, which
3622 indicates to the C program how many bytes there are in a long.
3625 This variable is defined but not used by Configure.
3626 The value is a plain '' and is not useful.
3629 This variable is defined but not used by Configure.
3630 The value is a plain '' and is not useful.
3633 This variable is used internally by Configure to determine the
3634 full pathname (if any) of the ls program. After Configure runs,
3635 the value is reset to a plain "ls" and is not useful.
3637 lseeksize (lseektype.U):
3638 This variable defines lseektype to be something like off_t, long,
3639 or whatever type is used to declare lseek offset's type in the
3640 kernel (which also appears to be lseek's return type).
3642 lseektype (lseektype.U):
3643 This variable defines lseektype to be something like off_t, long,
3644 or whatever type is used to declare lseek offset's type in the
3645 kernel (which also appears to be lseek's return type).
3648 This variable indicates that the Misc Attribute Definition code is to
3652 If the Misc Attribute Decoration is to be compiled, this variable is
3653 set to the name of the extra header files to be used, else it is ''
3656 If the Misc Attribute Decoration is to be compiled, this variable is
3657 set to the name of the extra object files to be used, else it is ''
3660 If the Misc Attribute Decoration is to be compiled, this variable is
3661 set to the name of the extra C source files to be used, else it is ''
3664 This variable is defined but not used by Configure.
3665 The value is a plain '' and is not useful.
3668 This variable is defined but not used by Configure.
3669 The value is a plain '' and is not useful.
3672 This variable is used internally by Configure to determine the
3673 full pathname (if any) of the make program. After Configure runs,
3674 the value is reset to a plain "make" and is not useful.
3676 make_set_make (make.U):
3677 Some versions of 'make' set the variable MAKE. Others do not.
3678 This variable contains the string to be included in Makefile.SH
3679 so that MAKE is set if needed, and not if not needed.
3680 Possible values are:
3682 make_set_make='#' # If your make program handles this for you,
3684 make_set_make="MAKE=$make" # if it doesn't.
3686 This uses a comment character so that we can distinguish a
3687 'set' value (from a previous config.sh or Configure '-D' option)
3688 from an uncomputed value.
3690 mallocobj (mallocsrc.U):
3691 This variable contains the name of the malloc.o that this package
3692 generates, if that malloc.o is preferred over the system malloc.
3693 Otherwise the value is null. This variable is intended for generating
3694 Makefiles. See mallocsrc.
3696 mallocsrc (mallocsrc.U):
3697 This variable contains the name of the malloc.c that comes with
3698 the package, if that malloc.c is preferred over the system malloc.
3699 Otherwise the value is null. This variable is intended for generating
3702 malloctype (mallocsrc.U):
3703 This variable contains the kind of ptr returned by malloc and realloc.
3705 man1dir (man1dir.U):
3706 This variable contains the name of the directory in which manual
3707 source pages are to be put. It is the responsibility of the
3708 Makefile.SH to get the value of this into the proper command.
3709 You must be prepared to do the ~name expansion yourself.
3711 man1direxp (man1dir.U):
3712 This variable is the same as the man1dir variable, but is filename
3713 expanded at configuration time, for convenient use in makefiles.
3715 man1ext (man1dir.U):
3716 This variable contains the extension that the manual page should
3717 have: one of 'n', 'l', or '1'. The Makefile must supply the '.'.
3720 man3dir (man3dir.U):
3721 This variable contains the name of the directory in which manual
3722 source pages are to be put. It is the responsibility of the
3723 Makefile.SH to get the value of this into the proper command.
3724 You must be prepared to do the ~name expansion yourself.
3726 man3direxp (man3dir.U):
3727 This variable is the same as the man3dir variable, but is filename
3728 expanded at configuration time, for convenient use in makefiles.
3730 man3ext (man3dir.U):
3731 This variable contains the extension that the manual page should
3732 have: one of 'n', 'l', or '3'. The Makefile must supply the '.'.
3735 mips_type (usrinc.U):
3736 This variable holds the environment type for the mips system.
3737 Possible values are "BSD 4.3" and "System V".
3739 mistrustnm (Csym.U):
3740 This variable can be used to establish a fallthrough for the cases
3741 where nm fails to find a symbol. If usenm is false or usenm is true
3742 and mistrustnm is false, this variable has no effect. If usenm is true
3743 and mistrustnm is "compile", a test program will be compiled to try to
3744 find any symbol that can't be located via nm lookup. If mistrustnm is
3745 "run", the test program will be run as well as being compiled.
3748 This variable is used internally by Configure to determine the
3749 full pathname (if any) of the mkdir program. After Configure runs,
3750 the value is reset to a plain "mkdir" and is not useful.
3752 mmaptype (d_mmap.U):
3753 This symbol contains the type of pointer returned by mmap()
3754 (and simultaneously the type of the first argument).
3755 It can be 'void *' or 'caddr_t'.
3757 modetype (modetype.U):
3758 This variable defines modetype to be something like mode_t,
3759 int, unsigned short, or whatever type is used to declare file
3760 modes for system calls.
3763 This variable is used internally by Configure to determine the
3764 full pathname (if any) of the more program. After Configure runs,
3765 the value is reset to a plain "more" and is not useful.
3767 multiarch (multiarch.U):
3768 This variable conditionally defines the MULTIARCH symbol
3769 which signifies the presence of multiplatform files.
3770 This is normally set by hints files.
3773 This variable is defined but not used by Configure.
3774 The value is a plain '' and is not useful.
3776 myarchname (archname.U):
3777 This variable holds the architecture name computed by Configure in
3778 a previous run. It is not intended to be perused by any user and
3779 should never be set in a hint file.
3781 mydomain (myhostname.U):
3782 This variable contains the eventual value of the MYDOMAIN symbol,
3783 which is the domain of the host the program is going to run on.
3784 The domain must be appended to myhostname to form a complete host name.
3785 The dot comes with mydomain, and need not be supplied by the program.
3787 myhostname (myhostname.U):
3788 This variable contains the eventual value of the MYHOSTNAME symbol,
3789 which is the name of the host the program is going to run on.
3790 The domain is not kept with hostname, but must be gotten from mydomain.
3791 The dot comes with mydomain, and need not be supplied by the program.
3793 myuname (Oldconfig.U):
3794 The output of 'uname -a' if available, otherwise the hostname. On Xenix,
3795 pseudo variables assignments in the output are stripped, thank you. The
3796 whole thing is then lower-cased.
3799 This variable contains the '-n' flag if that is what causes the echo
3800 command to suppress newline. Otherwise it is null. Correct usage is
3801 $echo $n "prompt for a question: $c".
3803 need_va_copy (need_va_copy.U):
3804 This symbol, if defined, indicates that the system stores
3805 the variable argument list datatype, va_list, in a format
3806 that cannot be copied by simple assignment, so that some
3807 other means must be used when copying is required.
3808 As such systems vary in their provision (or non-provision)
3809 of copying mechanisms, handy.h defines a platform-
3810 independent macro, Perl_va_copy(src, dst), to do the job.
3812 netdb_hlen_type (netdbtype.U):
3813 This variable holds the type used for the 2nd argument to
3814 gethostbyaddr(). Usually, this is int or size_t or unsigned.
3815 This is only useful if you have gethostbyaddr(), naturally.
3817 netdb_host_type (netdbtype.U):
3818 This variable holds the type used for the 1st argument to
3819 gethostbyaddr(). Usually, this is char * or void *, possibly
3820 with or without a const prefix.
3821 This is only useful if you have gethostbyaddr(), naturally.
3823 netdb_name_type (netdbtype.U):
3824 This variable holds the type used for the argument to
3825 gethostbyname(). Usually, this is char * or const char *.
3826 This is only useful if you have gethostbyname(), naturally.
3828 netdb_net_type (netdbtype.U):
3829 This variable holds the type used for the 1st argument to
3830 getnetbyaddr(). Usually, this is int or long.
3831 This is only useful if you have getnetbyaddr(), naturally.
3834 This variable is used internally by Configure to determine the
3835 full pathname (if any) of the nm program. After Configure runs,
3836 the value is reset to a plain "nm" and is not useful.
3839 This variable holds the options that may be necessary for nm.
3841 nm_so_opt (usenm.U):
3842 This variable holds the options that may be necessary for nm
3843 to work on a shared library but that can not be used on an
3844 archive library. Currently, this is only used by Linux, where
3845 nm --dynamic is *required* to get symbols from an ELF library which
3846 has been stripped, but nm --dynamic is *fatal* on an archive library.
3847 Maybe Linux should just always set usenm=false.
3849 nonxs_ext (Extensions.U):
3850 This variable holds a list of all non-xs extensions included
3851 in the package. All of them will be built.
3854 This variable is used internally by Configure to determine the
3855 full pathname (if any) of the nroff program. After Configure runs,
3856 the value is reset to a plain "nroff" and is not useful.
3858 nv_overflows_integers_at (perlxv.U):
3859 This variable gives the largest integer value that NVs can hold
3860 as a constant floating point expression.
3861 If it could not be determined, it holds the value 0.
3863 nv_preserves_uv_bits (perlxv.U):
3864 This variable indicates how many of bits type uvtype
3865 a variable nvtype can preserve.
3867 nveformat (perlxvf.U):
3868 This variable contains the format string used for printing
3869 a Perl NV using %e-ish floating point format.
3871 nvEUformat (perlxvf.U):
3872 This variable contains the format string used for printing
3873 a Perl NV using %E-ish floating point format.
3875 nvfformat (perlxvf.U):
3876 This variable confains the format string used for printing
3877 a Perl NV using %f-ish floating point format.
3879 nvFUformat (perlxvf.U):
3880 This variable confains the format string used for printing
3881 a Perl NV using %F-ish floating point format.
3883 nvgformat (perlxvf.U):
3884 This variable contains the format string used for printing
3885 a Perl NV using %g-ish floating point format.
3887 nvGUformat (perlxvf.U):
3888 This variable contains the format string used for printing
3889 a Perl NV using %G-ish floating point format.
3892 This variable is the size of an NV in bytes.
3895 This variable contains the C type used for Perl's NV.
3897 o_nonblock (nblock_io.U):
3898 This variable bears the symbol value to be used during open() or fcntl()
3899 to turn on non-blocking I/O for a file descriptor. If you wish to switch
3900 between blocking and non-blocking, you may try ioctl(FIOSNBIO) instead,
3901 but that is only supported by some devices.
3904 This is an old synonym for _o.
3906 old_pthread_create_joinable (d_pthrattrj.U):
3907 This variable defines the constant to use for creating joinable
3908 (aka undetached) pthreads. Unused if pthread.h defines
3909 PTHREAD_CREATE_JOINABLE. If used, possible values are
3910 PTHREAD_CREATE_UNDETACHED and __UNDETACHED.
3912 optimize (ccflags.U):
3913 This variable contains any optimizer/debugger flag that should be used.
3914 It is up to the Makefile to use it.
3916 orderlib (orderlib.U):
3917 This variable is "true" if the components of libraries must be ordered
3918 (with `lorder $* | tsort`) before placing them in an archive. Set to
3919 "false" if ranlib or ar can generate random libraries.
3921 osname (Oldconfig.U):
3922 This variable contains the operating system name (e.g. sunos,
3923 solaris, hpux, etc.). It can be useful later on for setting
3924 defaults. Any spaces are replaced with underscores. It is set
3925 to a null string if we can't figure it out.
3927 osvers (Oldconfig.U):
3928 This variable contains the operating system version (e.g.
3929 4.1.3, 5.2, etc.). It is primarily used for helping select
3930 an appropriate hints file, but might be useful elsewhere for
3931 setting defaults. It is set to '' if we can't figure it out.
3932 We try to be flexible about how much of the version number
3933 to keep, e.g. if 4.1.1, 4.1.2, and 4.1.3 are essentially the
3934 same for this package, hints files might just be os_4.0 or
3935 os_4.1, etc., not keeping separate files for each little release.
3937 otherlibdirs (otherlibdirs.U):
3938 This variable contains a colon-separated set of paths for the perl
3939 binary to search for additional library files or modules.
3940 These directories will be tacked to the end of @INC.
3941 Perl will automatically search below each path for version-
3942 and architecture-specific directories. See inc_version_list
3944 A value of ' ' means 'none' and is used to preserve this value
3945 for the next run through Configure.
3947 package (package.U):
3948 This variable contains the name of the package being constructed.
3949 It is primarily intended for the use of later Configure units.
3952 This variable contains the name of the preferred pager on the system.
3953 Usual values are (the full pathnames of) more, less, pg, or cat.
3956 This variable contains a command that produces the text of the
3957 /etc/passwd file. This is normally "cat /etc/passwd", but can be
3958 "ypcat passwd" when NIS is used.
3959 On some systems, such as os390, there may be no equivalent
3960 command, in which case this variable is unset.
3962 patchlevel (patchlevel.U):
3963 The patchlevel level of this package.
3964 The value of patchlevel comes from the patchlevel.h file.
3965 In a version number such as 5.6.1, this is the "6".
3966 In patchlevel.h, this is referred to as "PERL_VERSION".
3969 This is an old synonym for p_ in Head.U, the character
3970 used to separate elements in the command shell search PATH.
3973 This variable is defined but not used by Configure.
3974 The value is a plain '' and is not useful.
3977 This variable contains the full path (if any) to a previously
3978 installed perl5.005 or later suitable for running the script
3979 to determine inc_version_list.
3981 PERL_API_REVISION (patchlevel.h):
3982 This number describes the earliest compatible PERL_REVISION of
3983 Perl ("compatibility" here being defined as sufficient binary/API
3984 compatibility to run XS code built with the older version).
3985 Normally this does not change across maintenance releases.
3986 Please read the comment in patchlevel.h.
3988 PERL_API_SUBVERSION (patchlevel.h):
3989 This number describes the earliest compatible PERL_SUBVERSION of
3990 Perl ("compatibility" here being defined as sufficient binary/API
3991 compatibility to run XS code built with the older version).
3992 Normally this does not change across maintenance releases.
3993 Please read the comment in patchlevel.h.
3995 PERL_API_VERSION (patchlevel.h):
3996 This number describes the earliest compatible PERL_VERSION of
3997 Perl ("compatibility" here being defined as sufficient binary/API
3998 compatibility to run XS code built with the older version).
3999 Normally this does not change across maintenance releases.
4000 Please read the comment in patchlevel.h.
4002 PERL_CONFIG_SH (Oldsyms.U):
4003 This is set to 'true' in config.sh so that a shell script
4004 sourcing config.sh can tell if it has been sourced already.
4006 PERL_PATCHLEVEL (Oldsyms.U):
4007 This symbol reflects the patchlevel, if available. Will usually
4008 come from the .patch file, which is available when the perl
4009 source tree was fetched with rsync.
4011 perl_patchlevel (patchlevel.U):
4012 This is the Perl patch level, a numeric change identifier,
4013 as defined by whichever source code maintenance system
4014 is used to maintain the patches; currently Perforce.
4015 It does not correlate with the Perl version numbers or
4016 the maintenance versus development dichotomy except
4017 by also being increasing.
4019 PERL_REVISION (Oldsyms.U):
4020 In a Perl version number such as 5.6.2, this is the 5.
4021 This value is manually set in patchlevel.h
4023 PERL_SUBVERSION (Oldsyms.U):
4024 In a Perl version number such as 5.6.2, this is the 2.
4025 Values greater than 50 represent potentially unstable
4026 development subversions.
4027 This value is manually set in patchlevel.h
4029 PERL_VERSION (Oldsyms.U):
4030 In a Perl version number such as 5.6.2, this is the 6.
4031 This value is manually set in patchlevel.h
4033 perladmin (perladmin.U):
4034 Electronic mail address of the perl5 administrator.
4037 The list of libraries needed by Perl only (any libraries needed
4038 by extensions only will by dropped, if using dynamic loading).
4040 perlpath (perlpath.U):
4041 This variable contains the eventual value of the PERLPATH symbol,
4042 which contains the name of the perl interpreter to be used in
4043 shell scripts and in the "eval 'exec'" idiom. This variable is
4044 not necessarily the pathname of the file containing the perl
4045 interpreter; you must append the executable extension (_exe) if
4046 it is not already present. Note that Perl code that runs during
4047 the Perl build process cannot reference this variable, as Perl
4048 may not have been installed, or even if installed, may be a
4049 different version of Perl.
4052 This variable is used internally by Configure to determine the
4053 full pathname (if any) of the pg program. After Configure runs,
4054 the value is reset to a plain "pg" and is not useful.
4056 phostname (myhostname.U):
4057 This variable contains the eventual value of the PHOSTNAME symbol,
4058 which is a command that can be fed to popen() to get the host name.
4059 The program should probably not presume that the domain is or isn't
4062 pidtype (pidtype.U):
4063 This variable defines PIDTYPE to be something like pid_t, int,
4064 ushort, or whatever type is used to declare process ids in the kernel.
4067 Holds the private path used by Configure to find out the libraries.
4068 Its value is prepend to libpth. This variable takes care of special
4069 machines, like the mips. Usually, it should be empty.
4072 This variable is defined but not used by Configure.
4073 The value is a plain '' and is not useful.
4076 This variable is defined but not used by Configure.
4077 The value is a plain '' and is not useful.
4080 This variable holds the name of the directory below which the
4081 user will install the package. Usually, this is /usr/local, and
4082 executables go in /usr/local/bin, library stuff in /usr/local/lib,
4083 man pages in /usr/local/man, etc. It is only used to set defaults
4084 for things in bin.U, mansrc.U, privlib.U, or scriptdir.U.
4086 prefixexp (prefix.U):
4087 This variable holds the full absolute path of the directory below
4088 which the user will install the package. Derived from prefix.
4090 privlib (privlib.U):
4091 This variable contains the eventual value of the PRIVLIB symbol,
4092 which is the name of the private library for this package. It may
4093 have a ~ on the front. It is up to the makefile to eventually create
4094 this directory while performing installation (with ~ substitution).
4096 privlibexp (privlib.U):
4097 This variable is the ~name expanded version of privlib, so that you
4098 may use it directly in Makefiles or shell scripts.
4100 procselfexe (d_procselfexe.U):
4101 If d_procselfexe is defined, $procselfexe is the filename
4102 of the symbolic link pointing to the absolute pathname of
4103 the executing program.
4105 prototype (prototype.U):
4106 This variable holds the eventual value of CAN_PROTOTYPE, which
4107 indicates the C compiler can handle funciton prototypes.
4109 ptrsize (ptrsize.U):
4110 This variable contains the value of the PTRSIZE symbol, which
4111 indicates to the C program how many bytes there are in a pointer.
4113 quadkind (quadtype.U):
4114 This variable, if defined, encodes the type of a quad:
4115 1 = int, 2 = long, 3 = long long, 4 = int64_t.
4117 quadtype (quadtype.U):
4118 This variable defines Quad_t to be something like long, int,
4119 long long, int64_t, or whatever type is used for 64-bit integers.
4121 randbits (randfunc.U):
4122 Indicates how many bits are produced by the function used to
4123 generate normalized random numbers.
4125 randfunc (randfunc.U):
4126 Indicates the name of the random number function to use.
4127 Values include drand48, random, and rand. In C programs,
4128 the 'Drand01' macro is defined to generate uniformly distributed
4129 random numbers over the range [0., 1.[ (see drand01 and nrand).
4131 random_r_proto (d_random_r.U):
4132 This variable encodes the prototype of random_r.
4133 It is zero if d_random_r is undef, and one of the
4134 REENTRANT_PROTO_T_ABC macros of reentr.h if d_random_r
4137 randseedtype (randfunc.U):
4138 Indicates the type of the argument of the seedfunc.
4140 ranlib (orderlib.U):
4141 This variable is set to the pathname of the ranlib program, if it is
4142 needed to generate random libraries. Set to ":" if ar can generate
4143 random libraries or if random libraries are not supported
4145 rd_nodata (nblock_io.U):
4146 This variable holds the return code from read() when no data is
4147 present. It should be -1, but some systems return 0 when O_NDELAY is
4148 used, which is a shame because you cannot make the difference between
4149 no data and an EOF.. Sigh!
4151 readdir64_r_proto (d_readdir64_r.U):
4152 This variable encodes the prototype of readdir64_r.
4153 It is zero if d_readdir64_r is undef, and one of the
4154 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir64_r
4157 readdir_r_proto (d_readdir_r.U):
4158 This variable encodes the prototype of readdir_r.
4159 It is zero if d_readdir_r is undef, and one of the
4160 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir_r
4163 revision (patchlevel.U):
4164 The value of revision comes from the patchlevel.h file.
4165 In a version number such as 5.6.1, this is the "5".
4166 In patchlevel.h, this is referred to as "PERL_REVISION".
4169 This variable is used internally by Configure to determine the
4170 full pathname (if any) of the rm program. After Configure runs,
4171 the value is reset to a plain "rm" and is not useful.
4174 This is a cleanup variable for try test programs.
4175 Internal Configure use only.
4178 This variable is defined but not used by Configure.
4179 The value is a plain '' and is not useful.
4182 This variable contains the command used by Configure
4183 to copy and execute a cross-compiled executable in the
4184 target host. Useful and available only during Perl build.
4185 Empty string '' if not cross-compiling.
4188 This variable contains 'true' or 'false' depending whether the
4189 nm extraction should be performed or not, according to the value
4190 of usenm and the flags on the Configure command line.
4192 sched_yield (d_pthread_y.U):
4193 This variable defines the way to yield the execution
4194 of the current thread.
4196 scriptdir (scriptdir.U):
4197 This variable holds the name of the directory in which the user wants
4198 to put publicly scripts for the package in question. It is either
4199 the same directory as for binaries, or a special one that can be
4200 mounted across different architectures, like /usr/share. Programs
4201 must be prepared to deal with ~name expansion.
4203 scriptdirexp (scriptdir.U):
4204 This variable is the same as scriptdir, but is filename expanded
4205 at configuration time, for programs not wanting to bother with it.
4208 This variable is used internally by Configure to determine the
4209 full pathname (if any) of the sed program. After Configure runs,
4210 the value is reset to a plain "sed" and is not useful.
4212 seedfunc (randfunc.U):
4213 Indicates the random number generating seed function.
4214 Values include srand48, srandom, and srand.
4216 selectminbits (selectminbits.U):
4217 This variable holds the minimum number of bits operated by select.
4218 That is, if you do select(n, ...), how many bits at least will be
4219 cleared in the masks if some activity is detected. Usually this
4220 is either n or 32*ceil(n/32), especially many little-endians do
4221 the latter. This is only useful if you have select(), naturally.
4223 selecttype (selecttype.U):
4224 This variable holds the type used for the 2nd, 3rd, and 4th
4225 arguments to select. Usually, this is 'fd_set *', if HAS_FD_SET
4226 is defined, and 'int *' otherwise. This is only useful if you
4227 have select(), naturally.
4230 This variable is defined but not used by Configure.
4231 The value is a plain '' and is not useful.
4233 setgrent_r_proto (d_setgrent_r.U):
4234 This variable encodes the prototype of setgrent_r.
4235 It is zero if d_setgrent_r is undef, and one of the
4236 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setgrent_r
4239 sethostent_r_proto (d_sethostent_r.U):
4240 This variable encodes the prototype of sethostent_r.
4241 It is zero if d_sethostent_r is undef, and one of the
4242 REENTRANT_PROTO_T_ABC macros of reentr.h if d_sethostent_r
4245 setlocale_r_proto (d_setlocale_r.U):
4246 This variable encodes the prototype of setlocale_r.
4247 It is zero if d_setlocale_r is undef, and one of the
4248 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setlocale_r
4251 setnetent_r_proto (d_setnetent_r.U):
4252 This variable encodes the prototype of setnetent_r.
4253 It is zero if d_setnetent_r is undef, and one of the
4254 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setnetent_r
4257 setprotoent_r_proto (d_setprotoent_r.U):
4258 This variable encodes the prototype of setprotoent_r.
4259 It is zero if d_setprotoent_r is undef, and one of the
4260 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setprotoent_r
4263 setpwent_r_proto (d_setpwent_r.U):
4264 This variable encodes the prototype of setpwent_r.
4265 It is zero if d_setpwent_r is undef, and one of the
4266 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setpwent_r
4269 setservent_r_proto (d_setservent_r.U):
4270 This variable encodes the prototype of setservent_r.
4271 It is zero if d_setservent_r is undef, and one of the
4272 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setservent_r
4275 sGMTIME_max (time_size.U):
4276 This variable defines the maximum value of the time_t offset that
4277 the system function gmtime () accepts
4279 sGMTIME_min (time_size.U):
4280 This variable defines the minimum value of the time_t offset that
4281 the system function gmtime () accepts
4284 This variable contains the full pathname of the shell used
4285 on this system to execute Bourne shell scripts. Usually, this will be
4286 /bin/sh, though it's possible that some systems will have /bin/ksh,
4287 /bin/pdksh, /bin/ash, /bin/bash, or even something such as
4289 This unit comes before Options.U, so you can't set sh with a '-D'
4290 option, though you can override this (and startsh)
4291 with '-O -Dsh=/bin/whatever -Dstartsh=whatever'
4294 This variable is defined but not used by Configure.
4295 The value is a plain '' and is not useful.
4297 sharpbang (spitshell.U):
4298 This variable contains the string #! if this system supports that
4301 shmattype (d_shmat.U):
4302 This symbol contains the type of pointer returned by shmat().
4303 It can be 'void *' or 'char *'.
4305 shortsize (intsize.U):
4306 This variable contains the value of the SHORTSIZE symbol which
4307 indicates to the C program how many bytes there are in a short.
4309 shrpenv (libperl.U):
4310 If the user builds a shared libperl.so, then we need to tell the
4311 'perl' executable where it will be able to find the installed libperl.so.
4312 One way to do this on some systems is to set the environment variable
4313 LD_RUN_PATH to the directory that will be the final location of the
4314 shared libperl.so. The makefile can use this with something like
4315 $shrpenv $(CC) -o perl perlmain.o $libperl $libs
4317 shrpenv="env LD_RUN_PATH=$archlibexp/CORE"
4320 See the main perl Makefile.SH for actual working usage.
4321 Alternatively, we might be able to use a command line option such
4322 as -R $archlibexp/CORE (Solaris) or -Wl,-rpath
4323 $archlibexp/CORE (Linux).
4325 shsharp (spitshell.U):
4326 This variable tells further Configure units whether your sh can
4329 sig_count (sig_name.U):
4330 This variable holds a number larger than the largest valid
4331 signal number. This is usually the same as the NSIG macro.
4333 sig_name (sig_name.U):
4334 This variable holds the signal names, space separated. The leading
4335 SIG in signal name is removed. A ZERO is prepended to the list.
4336 This is currently not used, sig_name_init is used instead.
4338 sig_name_init (sig_name.U):
4339 This variable holds the signal names, enclosed in double quotes and
4340 separated by commas, suitable for use in the SIG_NAME definition
4341 below. A "ZERO" is prepended to the list, and the list is
4342 terminated with a plain 0. The leading SIG in signal names
4343 is removed. See sig_num.
4345 sig_num (sig_name.U):
4346 This variable holds the signal numbers, space separated. A ZERO is
4347 prepended to the list (corresponding to the fake SIGZERO).
4348 Those numbers correspond to the value of the signal listed
4349 in the same place within the sig_name list.
4350 This is currently not used, sig_num_init is used instead.
4352 sig_num_init (sig_name.U):
4353 This variable holds the signal numbers, enclosed in double quotes and
4354 separated by commas, suitable for use in the SIG_NUM definition
4355 below. A "ZERO" is prepended to the list, and the list is
4356 terminated with a plain 0.
4358 sig_size (sig_name.U):
4359 This variable contains the number of elements of the sig_name
4362 signal_t (d_voidsig.U):
4363 This variable holds the type of the signal handler (void or int).
4365 sitearch (sitearch.U):
4366 This variable contains the eventual value of the SITEARCH symbol,
4367 which is the name of the private library for this package. It may
4368 have a ~ on the front. It is up to the makefile to eventually create
4369 this directory while performing installation (with ~ substitution).
4370 The standard distribution will put nothing in this directory.
4371 After perl has been installed, users may install their own local
4372 architecture-dependent modules in this directory with
4373 MakeMaker Makefile.PL
4374 or equivalent. See INSTALL for details.
4376 sitearchexp (sitearch.U):
4377 This variable is the ~name expanded version of sitearch, so that you
4378 may use it directly in Makefiles or shell scripts.
4380 sitebin (sitebin.U):
4381 This variable holds the name of the directory in which the user wants
4382 to put add-on publicly executable files for the package in question. It
4383 is most often a local directory such as /usr/local/bin. Programs using
4384 this variable must be prepared to deal with ~name substitution.
4385 The standard distribution will put nothing in this directory.
4386 After perl has been installed, users may install their own local
4387 executables in this directory with
4388 MakeMaker Makefile.PL
4389 or equivalent. See INSTALL for details.
4391 sitebinexp (sitebin.U):
4392 This is the same as the sitebin variable, but is filename expanded at
4393 configuration time, for use in your makefiles.
4395 sitehtml1dir (sitehtml1dir.U):
4396 This variable contains the name of the directory in which site-specific
4397 html source pages are to be put. It is the responsibility of the
4398 Makefile.SH to get the value of this into the proper command.
4399 You must be prepared to do the ~name expansion yourself.
4400 The standard distribution will put nothing in this directory.
4401 After perl has been installed, users may install their own local
4402 html pages in this directory with
4403 MakeMaker Makefile.PL
4404 or equivalent. See INSTALL for details.
4406 sitehtml1direxp (sitehtml1dir.U):
4407 This variable is the same as the sitehtml1dir variable, but is filename
4408 expanded at configuration time, for convenient use in makefiles.
4410 sitehtml3dir (sitehtml3dir.U):
4411 This variable contains the name of the directory in which site-specific
4412 library html source pages are to be put. It is the responsibility of the
4413 Makefile.SH to get the value of this into the proper command.
4414 You must be prepared to do the ~name expansion yourself.
4415 The standard distribution will put nothing in this directory.
4416 After perl has been installed, users may install their own local
4417 library html pages in this directory with
4418 MakeMaker Makefile.PL
4419 or equivalent. See INSTALL for details.
4421 sitehtml3direxp (sitehtml3dir.U):
4422 This variable is the same as the sitehtml3dir variable, but is filename
4423 expanded at configuration time, for convenient use in makefiles.
4425 sitelib (sitelib.U):
4426 This variable contains the eventual value of the SITELIB symbol,
4427 which is the name of the private library for this package. It may
4428 have a ~ on the front. It is up to the makefile to eventually create
4429 this directory while performing installation (with ~ substitution).
4430 The standard distribution will put nothing in this directory.
4431 After perl has been installed, users may install their own local
4432 architecture-independent modules in this directory with
4433 MakeMaker Makefile.PL
4434 or equivalent. See INSTALL for details.
4436 sitelib_stem (sitelib.U):
4437 This variable is $sitelibexp with any trailing version-specific component
4438 removed. The elements in inc_version_list (inc_version_list.U) can
4439 be tacked onto this variable to generate a list of directories to search.
4441 sitelibexp (sitelib.U):
4442 This variable is the ~name expanded version of sitelib, so that you
4443 may use it directly in Makefiles or shell scripts.
4445 siteman1dir (siteman1dir.U):
4446 This variable contains the name of the directory in which site-specific
4447 manual source pages are to be put. It is the responsibility of the
4448 Makefile.SH to get the value of this into the proper command.
4449 You must be prepared to do the ~name expansion yourself.
4450 The standard distribution will put nothing in this directory.
4451 After perl has been installed, users may install their own local
4452 man1 pages in this directory with
4453 MakeMaker Makefile.PL
4454 or equivalent. See INSTALL for details.
4456 siteman1direxp (siteman1dir.U):
4457 This variable is the same as the siteman1dir variable, but is filename
4458 expanded at configuration time, for convenient use in makefiles.
4460 siteman3dir (siteman3dir.U):
4461 This variable contains the name of the directory in which site-specific
4462 library man source pages are to be put. It is the responsibility of the
4463 Makefile.SH to get the value of this into the proper command.
4464 You must be prepared to do the ~name expansion yourself.
4465 The standard distribution will put nothing in this directory.
4466 After perl has been installed, users may install their own local
4467 man3 pages in this directory with
4468 MakeMaker Makefile.PL
4469 or equivalent. See INSTALL for details.
4471 siteman3direxp (siteman3dir.U):
4472 This variable is the same as the siteman3dir variable, but is filename
4473 expanded at configuration time, for convenient use in makefiles.
4475 siteprefix (siteprefix.U):
4476 This variable holds the full absolute path of the directory below
4477 which the user will install add-on packages.
4478 See INSTALL for usage and examples.
4480 siteprefixexp (siteprefix.U):
4481 This variable holds the full absolute path of the directory below
4482 which the user will install add-on packages. Derived from siteprefix.
4484 sitescript (sitescript.U):
4485 This variable holds the name of the directory in which the user wants
4486 to put add-on publicly executable files for the package in question. It
4487 is most often a local directory such as /usr/local/bin. Programs using
4488 this variable must be prepared to deal with ~name substitution.
4489 The standard distribution will put nothing in this directory.
4490 After perl has been installed, users may install their own local
4491 scripts in this directory with
4492 MakeMaker Makefile.PL
4493 or equivalent. See INSTALL for details.
4495 sitescriptexp (sitescript.U):
4496 This is the same as the sitescript variable, but is filename expanded at
4497 configuration time, for use in your makefiles.
4499 sizesize (sizesize.U):
4500 This variable contains the size of a sizetype in bytes.
4502 sizetype (sizetype.U):
4503 This variable defines sizetype to be something like size_t,
4504 unsigned long, or whatever type is used to declare length
4505 parameters for string functions.
4508 This variable is defined but not used by Configure.
4509 The value is a plain '' and is not useful.
4511 sLOCALTIME_max (time_size.U):
4512 This variable defines the maximum value of the time_t offset that
4513 the system function localtime () accepts
4515 sLOCALTIME_min (time_size.U):
4516 This variable defines the minimum value of the time_t offset that
4517 the system function localtime () accepts
4520 This variable is defined but not used by Configure.
4521 The value is a plain '' and is not useful.
4524 This variable holds the extension used to identify shared libraries
4525 (also known as shared objects) on the system. Usually set to 'so'.
4527 sockethdr (d_socket.U):
4528 This variable has any cpp '-I' flags needed for socket support.
4530 socketlib (d_socket.U):
4531 This variable has the names of any libraries needed for socket support.
4533 socksizetype (socksizetype.U):
4534 This variable holds the type used for the size argument
4535 for various socket calls like accept. Usual values include
4536 socklen_t, size_t, and int.
4539 This variable is used internally by Configure to determine the
4540 full pathname (if any) of the sort program. After Configure runs,
4541 the value is reset to a plain "sort" and is not useful.
4543 spackage (package.U):
4544 This variable contains the name of the package being constructed,
4545 with the first letter uppercased, i.e. suitable for starting
4548 spitshell (spitshell.U):
4549 This variable contains the command necessary to spit out a runnable
4550 shell on this system. It is either cat or a grep '-v' for # comments.
4552 sPRId64 (quadfio.U):
4553 This variable, if defined, contains the string used by stdio to
4554 format 64-bit decimal numbers (format 'd') for output.
4556 sPRIeldbl (longdblfio.U):
4557 This variable, if defined, contains the string used by stdio to
4558 format long doubles (format 'e') for output.
4560 sPRIEUldbl (longdblfio.U):
4561 This variable, if defined, contains the string used by stdio to
4562 format long doubles (format 'E') for output.
4563 The 'U' in the name is to separate this from sPRIeldbl so that even
4564 case-blind systems can see the difference.
4566 sPRIfldbl (longdblfio.U):
4567 This variable, if defined, contains the string used by stdio to
4568 format long doubles (format 'f') for output.
4570 sPRIFUldbl (longdblfio.U):
4571 This variable, if defined, contains the string used by stdio to
4572 format long doubles (format 'F') for output.
4573 The 'U' in the name is to separate this from sPRIfldbl so that even
4574 case-blind systems can see the difference.
4576 sPRIgldbl (longdblfio.U):
4577 This variable, if defined, contains the string used by stdio to
4578 format long doubles (format 'g') for output.
4580 sPRIGUldbl (longdblfio.U):
4581 This variable, if defined, contains the string used by stdio to
4582 format long doubles (format 'G') for output.
4583 The 'U' in the name is to separate this from sPRIgldbl so that even
4584 case-blind systems can see the difference.
4586 sPRIi64 (quadfio.U):
4587 This variable, if defined, contains the string used by stdio to
4588 format 64-bit decimal numbers (format 'i') for output.
4590 sPRIo64 (quadfio.U):
4591 This variable, if defined, contains the string used by stdio to
4592 format 64-bit octal numbers (format 'o') for output.
4594 sPRIu64 (quadfio.U):
4595 This variable, if defined, contains the string used by stdio to
4596 format 64-bit unsigned decimal numbers (format 'u') for output.
4598 sPRIx64 (quadfio.U):
4599 This variable, if defined, contains the string used by stdio to
4600 format 64-bit hexadecimal numbers (format 'x') for output.
4602 sPRIXU64 (quadfio.U):
4603 This variable, if defined, contains the string used by stdio to
4604 format 64-bit hExADECimAl numbers (format 'X') for output.
4605 The 'U' in the name is to separate this from sPRIx64 so that even
4606 case-blind systems can see the difference.
4608 srand48_r_proto (d_srand48_r.U):
4609 This variable encodes the prototype of srand48_r.
4610 It is zero if d_srand48_r is undef, and one of the
4611 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srand48_r
4614 srandom_r_proto (d_srandom_r.U):
4615 This variable encodes the prototype of srandom_r.
4616 It is zero if d_srandom_r is undef, and one of the
4617 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srandom_r
4621 This variable holds the (possibly relative) path of the package source.
4622 It is up to the Makefile to use this variable and set VPATH accordingly
4623 to find the sources remotely. Use $pkgsrc to have an absolute path.
4625 sSCNfldbl (longdblfio.U):
4626 This variable, if defined, contains the string used by stdio to
4627 format long doubles (format 'f') for input.
4629 ssizetype (ssizetype.U):
4630 This variable defines ssizetype to be something like ssize_t,
4631 long or int. It is used by functions that return a count
4632 of bytes or an error condition. It must be a signed type.
4633 We will pick a type such that sizeof(SSize_t) == sizeof(Size_t).
4635 startperl (startperl.U):
4636 This variable contains the string to put on the front of a perl
4637 script to make sure (hopefully) that it runs with perl and not some
4638 shell. Of course, that leading line must be followed by the classical
4640 eval 'exec perl -S $0 ${1+"$@"}'
4641 if $running_under_some_shell;
4642 to guarantee perl startup should the shell execute the script. Note
4643 that this magic incatation is not understood by csh.
4645 startsh (startsh.U):
4646 This variable contains the string to put on the front of a shell
4647 script to make sure (hopefully) that it runs with sh and not some
4650 static_ext (Extensions.U):
4651 This variable holds a list of XS extension files we want to
4652 link statically into the package. It is used by Makefile.
4654 stdchar (stdchar.U):
4655 This variable conditionally defines STDCHAR to be the type of char
4656 used in stdio.h. It has the values "unsigned char" or "char".
4658 stdio_base (d_stdstdio.U):
4659 This variable defines how, given a FILE pointer, fp, to access the
4660 _base field (or equivalent) of stdio.h's FILE structure. This will
4661 be used to define the macro FILE_base(fp).
4663 stdio_bufsiz (d_stdstdio.U):
4664 This variable defines how, given a FILE pointer, fp, to determine
4665 the number of bytes store in the I/O buffer pointer to by the
4666 _base field (or equivalent) of stdio.h's FILE structure. This will
4667 be used to define the macro FILE_bufsiz(fp).
4669 stdio_cnt (d_stdstdio.U):
4670 This variable defines how, given a FILE pointer, fp, to access the
4671 _cnt field (or equivalent) of stdio.h's FILE structure. This will
4672 be used to define the macro FILE_cnt(fp).
4674 stdio_filbuf (d_stdstdio.U):
4675 This variable defines how, given a FILE pointer, fp, to tell
4676 stdio to refill its internal buffers (?). This will
4677 be used to define the macro FILE_filbuf(fp).
4679 stdio_ptr (d_stdstdio.U):
4680 This variable defines how, given a FILE pointer, fp, to access the
4681 _ptr field (or equivalent) of stdio.h's FILE structure. This will
4682 be used to define the macro FILE_ptr(fp).
4684 stdio_stream_array (stdio_streams.U):
4685 This variable tells the name of the array holding the stdio streams.
4686 Usual values include _iob, __iob, and __sF.
4688 strerror_r_proto (d_strerror_r.U):
4689 This variable encodes the prototype of strerror_r.
4690 It is zero if d_strerror_r is undef, and one of the
4691 REENTRANT_PROTO_T_ABC macros of reentr.h if d_strerror_r
4694 strings (i_string.U):
4695 This variable holds the full path of the string header that will be
4696 used. Typically /usr/include/string.h or /usr/include/strings.h.
4699 This variable is defined but not used by Configure.
4700 The value is a plain '' and is not useful.
4702 subversion (patchlevel.U):
4703 The subversion level of this package.
4704 The value of subversion comes from the patchlevel.h file.
4705 In a version number such as 5.6.1, this is the "1".
4706 In patchlevel.h, this is referred to as "PERL_SUBVERSION".
4707 This is unique to perl.
4710 This variable holds the place where the manual is located on this
4711 system. It is not the place where the user wants to put his manual
4712 pages. Rather it is the place where Configure may look to find manual
4713 for unix commands (section 1 of the manual usually). See mansrc.
4716 This variable is defined but not used by Configure.
4717 The value is a plain '' and is not useful.
4720 This variable is defined but not used by Configure.
4721 The value is a plain '' and is not useful.
4723 targetarch (Cross.U):
4724 If cross-compiling, this variable contains the target architecture.
4725 If not, this will be empty.
4728 This variable is defined but not used by Configure.
4729 The value is a plain '' and is not useful.
4732 This variable is defined but not used by Configure.
4733 The value is a plain '' and is not useful.
4736 This variable is used internally by Configure to determine the
4737 full pathname (if any) of the test program. After Configure runs,
4738 the value is reset to a plain "test" and is not useful.
4740 timeincl (i_time.U):
4741 This variable holds the full path of the included time header(s).
4743 timetype (d_time.U):
4744 This variable holds the type returned by time(). It can be long,
4745 or time_t on BSD sites (in which case <sys/types.h> should be
4746 included). Anyway, the type Time_t should be used.
4748 tmpnam_r_proto (d_tmpnam_r.U):
4749 This variable encodes the prototype of tmpnam_r.
4750 It is zero if d_tmpnam_r is undef, and one of the
4751 REENTRANT_PROTO_T_ABC macros of reentr.h if d_tmpnam_r
4755 This variable contains the command used by Configure
4756 to copy to from the target host. Useful and available
4757 only during Perl build.
4758 The string ':' if not cross-compiling.
4761 This variable is used internally by Configure to determine the
4762 full pathname (if any) of the touch program. After Configure runs,
4763 the value is reset to a plain "touch" and is not useful.
4766 This variable is used internally by Configure to determine the
4767 full pathname (if any) of the tr program. After Configure runs,
4768 the value is reset to a plain "tr" and is not useful.
4771 This variable contains the value to be passed to the tr(1)
4772 command to transliterate a newline. Typical values are
4773 '\012' and '\n'. This is needed for EBCDIC systems where
4774 newline is not necessarily '\012'.
4777 This variable is defined but not used by Configure.
4778 The value is a plain '' and is not useful.
4780 ttyname_r_proto (d_ttyname_r.U):
4781 This variable encodes the prototype of ttyname_r.
4782 It is zero if d_ttyname_r is undef, and one of the
4783 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ttyname_r
4787 This variable is the size of an U16 in bytes.
4790 This variable contains the C type used for Perl's U16.
4793 This variable is the size of an U32 in bytes.
4796 This variable contains the C type used for Perl's U32.
4799 This variable is the size of an U64 in bytes.
4802 This variable contains the C type used for Perl's U64.
4805 This variable is the size of an U8 in bytes.
4808 This variable contains the C type used for Perl's U8.
4811 This variable contains the format string used for printing a Uid_t.
4813 uidsign (uidsign.U):
4814 This variable contains the signedness of a uidtype.
4815 1 for unsigned, -1 for signed.
4817 uidsize (uidsize.U):
4818 This variable contains the size of a uidtype in bytes.
4820 uidtype (uidtype.U):
4821 This variable defines Uid_t to be something like uid_t, int,
4822 ushort, or whatever type is used to declare user ids in the kernel.
4825 This variable is used internally by Configure to determine the
4826 full pathname (if any) of the uname program. After Configure runs,
4827 the value is reset to a plain "uname" and is not useful.
4830 This variable is used internally by Configure to determine the
4831 full pathname (if any) of the uniq program. After Configure runs,
4832 the value is reset to a plain "uniq" and is not useful.
4834 uquadtype (quadtype.U):
4835 This variable defines Uquad_t to be something like unsigned long,
4836 unsigned int, unsigned long long, uint64_t, or whatever type is
4837 used for 64-bit integers.
4839 use5005threads (usethreads.U):
4840 This variable conditionally defines the USE_5005THREADS symbol,
4841 and indicates that Perl should be built to use the 5.005-based
4842 threading implementation. Only valid up to 5.8.x.
4844 use64bitall (use64bits.U):
4845 This variable conditionally defines the USE_64_BIT_ALL symbol,
4846 and indicates that 64-bit integer types should be used
4847 when available. The maximal possible
4848 64-bitness is employed: LP64 or ILP64, meaning that you will
4849 be able to use more than 2 gigabytes of memory. This mode is
4850 even more binary incompatible than USE_64_BIT_INT. You may not
4851 be able to run the resulting executable in a 32-bit CPU at all or
4852 you may need at least to reboot your OS to 64-bit mode.
4854 use64bitint (use64bits.U):
4855 This variable conditionally defines the USE_64_BIT_INT symbol,
4856 and indicates that 64-bit integer types should be used
4857 when available. The minimal possible 64-bitness
4858 is employed, just enough to get 64-bit integers into Perl.
4859 This may mean using for example "long longs", while your memory
4860 may still be limited to 2 gigabytes.
4862 usecrosscompile (Cross.U):
4863 This variable conditionally defines the USE_CROSS_COMPILE symbol,
4864 and indicates that Perl has been cross-compiled.
4867 This variable indicates if the system supports dynamic
4868 loading of some sort. See also dlsrc and dlobj.
4870 usedtrace (usedtrace.U):
4871 This variable indicates whether we are compiling with dtrace
4872 support. See also dtrace.
4874 usefaststdio (usefaststdio.U):
4875 This variable conditionally defines the USE_FAST_STDIO symbol,
4876 and indicates that Perl should be built to use 'fast stdio'.
4877 Defaults to define in Perls 5.8 and earlier, to undef later.
4879 useithreads (usethreads.U):
4880 This variable conditionally defines the USE_ITHREADS symbol,
4881 and indicates that Perl should be built to use the interpreter-based
4882 threading implementation.
4884 uselargefiles (uselfs.U):
4885 This variable conditionally defines the USE_LARGE_FILES symbol,
4886 and indicates that large file interfaces should be used when
4889 uselongdouble (uselongdbl.U):
4890 This variable conditionally defines the USE_LONG_DOUBLE symbol,
4891 and indicates that long doubles should be used when available.
4893 usemallocwrap (mallocsrc.U):
4894 This variable contains y if we are wrapping malloc to prevent
4895 integer overflow during size calculations.
4897 usemorebits (usemorebits.U):
4898 This variable conditionally defines the USE_MORE_BITS symbol,
4899 and indicates that explicit 64-bit interfaces and long doubles
4900 should be used when available.
4902 usemultiplicity (usemultiplicity.U):
4903 This variable conditionally defines the MULTIPLICITY symbol,
4904 and indicates that Perl should be built to use multiplicity.
4906 usemymalloc (mallocsrc.U):
4907 This variable contains y if the malloc that comes with this package
4908 is desired over the system's version of malloc. People often include
4909 special versions of malloc for effiency, but such versions are often
4910 less portable. See also mallocsrc and mallocobj.
4911 If this is 'y', then -lmalloc is removed from $libs.
4914 This variable contains 'true' or 'false' depending whether the
4915 nm extraction is wanted or not.
4917 useopcode (Extensions.U):
4918 This variable holds either 'true' or 'false' to indicate
4919 whether the Opcode extension should be used. The sole
4920 use for this currently is to allow an easy mechanism
4921 for users to skip the Opcode extension from the Configure
4924 useperlio (useperlio.U):
4925 This variable conditionally defines the USE_PERLIO symbol,
4926 and indicates that the PerlIO abstraction should be
4929 useposix (Extensions.U):
4930 This variable holds either 'true' or 'false' to indicate
4931 whether the POSIX extension should be used. The sole
4932 use for this currently is to allow an easy mechanism
4933 for hints files to indicate that POSIX will not compile
4934 on a particular system.
4936 usereentrant (usethreads.U):
4937 This variable conditionally defines the USE_REENTRANT_API symbol,
4938 which indicates that the thread code may try to use the various
4939 _r versions of library functions. This is only potentially
4940 meaningful if usethreads is set and is very experimental, it is
4941 not even prompted for.
4943 userelocatableinc (bin.U):
4944 This variable is set to true to indicate that perl should relocate
4945 @INC entries at runtime based on the path to the perl binary.
4946 Any @INC paths starting ".../" are relocated relative to the directory
4947 containing the perl binary, and a logical cleanup of the path is then
4948 made around the join point (removing "dir/../" pairs)
4951 This variable is set to true when the user agrees to use sfio.
4952 It is set to false when sfio is not available or when the user
4953 explicitely requests not to use sfio. It is here primarily so
4954 that command-line settings can override the auto-detection of
4955 d_sfio without running into a "WHOA THERE".
4957 useshrplib (libperl.U):
4958 This variable is set to 'true' if the user wishes
4959 to build a shared libperl, and 'false' otherwise.
4961 usesitecustomize (d_sitecustomize.U):
4962 This variable is set to true when the user requires a mechanism that
4963 allows the sysadmin to add entries to @INC at runtime. This variable
4964 being set, makes perl run '$sitelib/sitecustomize.pl' at startup.
4966 usesocks (usesocks.U):
4967 This variable conditionally defines the USE_SOCKS symbol,
4968 and indicates that Perl should be built to use SOCKS.
4970 usethreads (usethreads.U):
4971 This variable conditionally defines the USE_THREADS symbol,
4972 and indicates that Perl should be built to use threads.
4974 usevendorprefix (vendorprefix.U):
4975 This variable tells whether the vendorprefix
4976 and consequently other vendor* paths are in use.
4978 usevfork (d_vfork.U):
4979 This variable is set to true when the user accepts to use vfork.
4980 It is set to false when no vfork is available or when the user
4981 explicitely requests not to use vfork.
4984 This variable holds the path of the include files, which is
4985 usually /usr/include. It is mainly used by other Configure units.
4988 This variable is defined but not used by Configure.
4989 The value is a plain '' and is not useful.
4991 uvoformat (perlxvf.U):
4992 This variable contains the format string used for printing
4993 a Perl UV as an unsigned octal integer.
4996 This variable is the size of a UV in bytes.
4999 This variable contains the C type used for Perl's UV.
5001 uvuformat (perlxvf.U):
5002 This variable contains the format string used for printing
5003 a Perl UV as an unsigned decimal integer.
5005 uvxformat (perlxvf.U):
5006 This variable contains the format string used for printing
5007 a Perl UV as an unsigned hexadecimal integer in lowercase abcdef.
5009 uvXUformat (perlxvf.U):
5010 This variable contains the format string used for printing
5011 a Perl UV as an unsigned hexadecimal integer in uppercase ABCDEF.
5013 vendorarch (vendorarch.U):
5014 This variable contains the value of the PERL_VENDORARCH symbol.
5015 It may have a ~ on the front.
5016 The standard distribution will put nothing in this directory.
5017 Vendors who distribute perl may wish to place their own
5018 architecture-dependent modules and extensions in this directory with
5019 MakeMaker Makefile.PL INSTALLDIRS=vendor
5020 or equivalent. See INSTALL for details.
5022 vendorarchexp (vendorarch.U):
5023 This variable is the ~name expanded version of vendorarch, so that you
5024 may use it directly in Makefiles or shell scripts.
5026 vendorbin (vendorbin.U):
5027 This variable contains the eventual value of the VENDORBIN symbol.
5028 It may have a ~ on the front.
5029 The standard distribution will put nothing in this directory.
5030 Vendors who distribute perl may wish to place additional
5031 binaries in this directory with
5032 MakeMaker Makefile.PL INSTALLDIRS=vendor
5033 or equivalent. See INSTALL for details.
5035 vendorbinexp (vendorbin.U):
5036 This variable is the ~name expanded version of vendorbin, so that you
5037 may use it directly in Makefiles or shell scripts.
5039 vendorhtml1dir (vendorhtml1dir.U):
5040 This variable contains the name of the directory for html
5041 pages. It may have a ~ on the front.
5042 The standard distribution will put nothing in this directory.
5043 Vendors who distribute perl may wish to place their own
5044 html pages in this directory with
5045 MakeMaker Makefile.PL INSTALLDIRS=vendor
5046 or equivalent. See INSTALL for details.
5048 vendorhtml1direxp (vendorhtml1dir.U):
5049 This variable is the ~name expanded version of vendorhtml1dir, so that you
5050 may use it directly in Makefiles or shell scripts.
5052 vendorhtml3dir (vendorhtml3dir.U):
5053 This variable contains the name of the directory for html
5054 library pages. It may have a ~ on the front.
5055 The standard distribution will put nothing in this directory.
5056 Vendors who distribute perl may wish to place their own
5057 html pages for modules and extensions in this directory with
5058 MakeMaker Makefile.PL INSTALLDIRS=vendor
5059 or equivalent. See INSTALL for details.
5061 vendorhtml3direxp (vendorhtml3dir.U):
5062 This variable is the ~name expanded version of vendorhtml3dir, so that you
5063 may use it directly in Makefiles or shell scripts.
5065 vendorlib (vendorlib.U):
5066 This variable contains the eventual value of the VENDORLIB symbol,
5067 which is the name of the private library for this package.
5068 The standard distribution will put nothing in this directory.
5069 Vendors who distribute perl may wish to place their own
5070 modules in this directory with
5071 MakeMaker Makefile.PL INSTALLDIRS=vendor
5072 or equivalent. See INSTALL for details.
5074 vendorlib_stem (vendorlib.U):
5075 This variable is $vendorlibexp with any trailing version-specific component
5076 removed. The elements in inc_version_list (inc_version_list.U) can
5077 be tacked onto this variable to generate a list of directories to search.
5079 vendorlibexp (vendorlib.U):
5080 This variable is the ~name expanded version of vendorlib, so that you
5081 may use it directly in Makefiles or shell scripts.
5083 vendorman1dir (vendorman1dir.U):
5084 This variable contains the name of the directory for man1
5085 pages. It may have a ~ on the front.
5086 The standard distribution will put nothing in this directory.
5087 Vendors who distribute perl may wish to place their own
5088 man1 pages in this directory with
5089 MakeMaker Makefile.PL INSTALLDIRS=vendor
5090 or equivalent. See INSTALL for details.
5092 vendorman1direxp (vendorman1dir.U):
5093 This variable is the ~name expanded version of vendorman1dir, so that you
5094 may use it directly in Makefiles or shell scripts.
5096 vendorman3dir (vendorman3dir.U):
5097 This variable contains the name of the directory for man3
5098 pages. It may have a ~ on the front.
5099 The standard distribution will put nothing in this directory.
5100 Vendors who distribute perl may wish to place their own
5101 man3 pages in this directory with
5102 MakeMaker Makefile.PL INSTALLDIRS=vendor
5103 or equivalent. See INSTALL for details.
5105 vendorman3direxp (vendorman3dir.U):
5106 This variable is the ~name expanded version of vendorman3dir, so that you
5107 may use it directly in Makefiles or shell scripts.
5109 vendorprefix (vendorprefix.U):
5110 This variable holds the full absolute path of the directory below
5111 which the vendor will install add-on packages.
5112 See INSTALL for usage and examples.
5114 vendorprefixexp (vendorprefix.U):
5115 This variable holds the full absolute path of the directory below
5116 which the vendor will install add-on packages. Derived from vendorprefix.
5118 vendorscript (vendorscript.U):
5119 This variable contains the eventual value of the VENDORSCRIPT symbol.
5120 It may have a ~ on the front.
5121 The standard distribution will put nothing in this directory.
5122 Vendors who distribute perl may wish to place additional
5123 executable scripts in this directory with
5124 MakeMaker Makefile.PL INSTALLDIRS=vendor
5125 or equivalent. See INSTALL for details.
5127 vendorscriptexp (vendorscript.U):
5128 This variable is the ~name expanded version of vendorscript, so that you
5129 may use it directly in Makefiles or shell scripts.
5131 version (patchlevel.U):
5132 The full version number of this package, such as 5.6.1 (or 5_6_1).
5133 This combines revision, patchlevel, and subversion to get the
5134 full version number, including any possible subversions.
5135 This is suitable for use as a directory name, and hence is
5136 filesystem dependent.
5138 version_patchlevel_string (patchlevel.U):
5139 This is a string combining version, subversion and
5140 perl_patchlevel (if perl_patchlevel is non-zero).
5141 It is typically something like
5142 'version 7 subversion 1' or
5143 'version 7 subversion 1 patchlevel 11224'
5144 It is computed here to avoid duplication of code in myconfig.SH
5147 versiononly (versiononly.U):
5148 If set, this symbol indicates that only the version-specific
5149 components of a perl installation should be installed.
5150 This may be useful for making a test installation of a new
5151 version without disturbing the existing installation.
5152 Setting versiononly is equivalent to setting installperl's -v option.
5153 In particular, the non-versioned scripts and programs such as
5154 a2p, c2ph, h2xs, pod2*, and perldoc are not installed
5155 (see INSTALL for a more complete list). Nor are the man
5157 Usually, this is undef.
5160 This variable is defined but not used by Configure.
5161 The value is a plain '' and is not useful.
5163 voidflags (voidflags.U):
5164 This variable contains the eventual value of the VOIDFLAGS symbol,
5165 which indicates how much support of the void type is given by this
5166 compiler. See VOIDFLAGS for more info.
5169 This variable holds extra path (space-separated) used to find
5170 libraries on this platform, for example CPU-specific libraries
5171 (on multi-CPU platforms) may be listed here.
5174 This variable holds the name of the compiler compiler we
5175 want to use in the Makefile. It can be yacc, byacc, or bison -y.
5178 This variable contains any additional yacc flags desired by the
5179 user. It is up to the Makefile to use this.
5182 This variable is defined but not used by Configure.
5183 The value is a plain '' and is not useful.
5186 This variable is used internally by Configure to determine the
5187 full pathname (if any) of the zip program. After Configure runs,
5188 the value is reset to a plain "zip" and is not useful.