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 This variable holds a list of extra modules to install.
2543 fflushall (fflushall.U):
2544 This symbol, if defined, tells that to flush
2545 all pending stdio output one must loop through all
2546 the stdio file handles stored in an array and fflush them.
2547 Note that if fflushNULL is defined, fflushall will not
2548 even be probed for and will be left undefined.
2550 fflushNULL (fflushall.U):
2551 This symbol, if defined, tells that fflush(NULL) does flush
2552 all pending stdio output.
2555 This variable is defined but not used by Configure.
2556 The value is a plain '' and is not useful.
2558 firstmakefile (Unix.U):
2559 This variable defines the first file searched by make. On unix,
2560 it is makefile (then Makefile). On case-insensitive systems,
2561 it might be something else. This is only used to deal with
2562 convoluted make depend tricks.
2565 This variable is defined but not used by Configure.
2566 The value is a plain '' and is not useful.
2568 fpossize (fpossize.U):
2569 This variable contains the size of a fpostype in bytes.
2571 fpostype (fpostype.U):
2572 This variable defines Fpos_t to be something like fpos_t, long,
2573 uint, or whatever type is used to declare file positions in libc.
2575 freetype (mallocsrc.U):
2576 This variable contains the return type of free(). It is usually
2577 void, but occasionally int.
2580 This variable contains the command used by Configure
2581 to copy files from the target host. Useful and available
2582 only during Perl build.
2583 The string ':' if not cross-compiling.
2586 This variable contains the full pathname to 'ar', whether or
2587 not the user has specified 'portability'. This is only used
2591 This variable contains the full pathname to 'csh', whether or
2592 not the user has specified 'portability'. This is only used
2593 in the compiled C program, and we assume that all systems which
2594 can share this executable will have the same full pathname to
2597 full_sed (Loc_sed.U):
2598 This variable contains the full pathname to 'sed', whether or
2599 not the user has specified 'portability'. This is only used
2600 in the compiled C program, and we assume that all systems which
2601 can share this executable will have the same full pathname to
2604 gccansipedantic (gccvers.U):
2605 If GNU cc (gcc) is used, this variable will enable (if set) the
2606 -ansi and -pedantic ccflags for building core files (through
2607 cflags script). (See Porting/pumpkin.pod for full description).
2609 gccosandvers (gccvers.U):
2610 If GNU cc (gcc) is used, this variable holds the operating system
2611 and version used to compile gcc. It is set to '' if not gcc,
2612 or if nothing useful can be parsed as the os version.
2614 gccversion (gccvers.U):
2615 If GNU cc (gcc) is used, this variable holds '1' or '2' to
2616 indicate whether the compiler is version 1 or 2. This is used in
2617 setting some of the default cflags. It is set to '' if not gcc.
2619 getgrent_r_proto (d_getgrent_r.U):
2620 This variable encodes the prototype of getgrent_r.
2621 It is zero if d_getgrent_r is undef, and one of the
2622 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrent_r
2625 getgrgid_r_proto (d_getgrgid_r.U):
2626 This variable encodes the prototype of getgrgid_r.
2627 It is zero if d_getgrgid_r is undef, and one of the
2628 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrgid_r
2631 getgrnam_r_proto (d_getgrnam_r.U):
2632 This variable encodes the prototype of getgrnam_r.
2633 It is zero if d_getgrnam_r is undef, and one of the
2634 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrnam_r
2637 gethostbyaddr_r_proto (d_gethostbyaddr_r.U):
2638 This variable encodes the prototype of gethostbyaddr_r.
2639 It is zero if d_gethostbyaddr_r is undef, and one of the
2640 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyaddr_r
2643 gethostbyname_r_proto (d_gethostbyname_r.U):
2644 This variable encodes the prototype of gethostbyname_r.
2645 It is zero if d_gethostbyname_r is undef, and one of the
2646 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyname_r
2649 gethostent_r_proto (d_gethostent_r.U):
2650 This variable encodes the prototype of gethostent_r.
2651 It is zero if d_gethostent_r is undef, and one of the
2652 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostent_r
2655 getlogin_r_proto (d_getlogin_r.U):
2656 This variable encodes the prototype of getlogin_r.
2657 It is zero if d_getlogin_r is undef, and one of the
2658 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getlogin_r
2661 getnetbyaddr_r_proto (d_getnetbyaddr_r.U):
2662 This variable encodes the prototype of getnetbyaddr_r.
2663 It is zero if d_getnetbyaddr_r is undef, and one of the
2664 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyaddr_r
2667 getnetbyname_r_proto (d_getnetbyname_r.U):
2668 This variable encodes the prototype of getnetbyname_r.
2669 It is zero if d_getnetbyname_r is undef, and one of the
2670 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyname_r
2673 getnetent_r_proto (d_getnetent_r.U):
2674 This variable encodes the prototype of getnetent_r.
2675 It is zero if d_getnetent_r is undef, and one of the
2676 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetent_r
2679 getprotobyname_r_proto (d_getprotobyname_r.U):
2680 This variable encodes the prototype of getprotobyname_r.
2681 It is zero if d_getprotobyname_r is undef, and one of the
2682 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobyname_r
2685 getprotobynumber_r_proto (d_getprotobynumber_r.U):
2686 This variable encodes the prototype of getprotobynumber_r.
2687 It is zero if d_getprotobynumber_r is undef, and one of the
2688 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobynumber_r
2691 getprotoent_r_proto (d_getprotoent_r.U):
2692 This variable encodes the prototype of getprotoent_r.
2693 It is zero if d_getprotoent_r is undef, and one of the
2694 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotoent_r
2697 getpwent_r_proto (d_getpwent_r.U):
2698 This variable encodes the prototype of getpwent_r.
2699 It is zero if d_getpwent_r is undef, and one of the
2700 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwent_r
2703 getpwnam_r_proto (d_getpwnam_r.U):
2704 This variable encodes the prototype of getpwnam_r.
2705 It is zero if d_getpwnam_r is undef, and one of the
2706 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwnam_r
2709 getpwuid_r_proto (d_getpwuid_r.U):
2710 This variable encodes the prototype of getpwuid_r.
2711 It is zero if d_getpwuid_r is undef, and one of the
2712 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwuid_r
2715 getservbyname_r_proto (d_getservbyname_r.U):
2716 This variable encodes the prototype of getservbyname_r.
2717 It is zero if d_getservbyname_r is undef, and one of the
2718 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyname_r
2721 getservbyport_r_proto (d_getservbyport_r.U):
2722 This variable encodes the prototype of getservbyport_r.
2723 It is zero if d_getservbyport_r is undef, and one of the
2724 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyport_r
2727 getservent_r_proto (d_getservent_r.U):
2728 This variable encodes the prototype of getservent_r.
2729 It is zero if d_getservent_r is undef, and one of the
2730 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservent_r
2733 getspnam_r_proto (d_getspnam_r.U):
2734 This variable encodes the prototype of getspnam_r.
2735 It is zero if d_getspnam_r is undef, and one of the
2736 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getspnam_r
2740 This variable contains the format string used for printing a Gid_t.
2742 gidsign (gidsign.U):
2743 This variable contains the signedness of a gidtype.
2744 1 for unsigned, -1 for signed.
2746 gidsize (gidsize.U):
2747 This variable contains the size of a gidtype in bytes.
2749 gidtype (gidtype.U):
2750 This variable defines Gid_t to be something like gid_t, int,
2751 ushort, or whatever type is used to declare the return type
2752 of getgid(). Typically, it is the type of group ids in the kernel.
2755 This variable holds the general path (space-separated) used to
2756 find libraries. It may contain directories that do not exist on
2757 this platform, libpth is the cleaned-up version.
2760 This variable is used internally by Configure to determine the
2761 full pathname (if any) of the gmake program. After Configure runs,
2762 the value is reset to a plain "gmake" and is not useful.
2764 gmtime_r_proto (d_gmtime_r.U):
2765 This variable encodes the prototype of gmtime_r.
2766 It is zero if d_gmtime_r is undef, and one of the
2767 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gmtime_r
2770 gnulibc_version (d_gnulibc.U):
2771 This variable contains the version number of the GNU C library.
2772 It is usually something like '2.2.5'. It is a plain '' if this
2773 is not the GNU C library, or if the version is unknown.
2776 This variable is used internally by Configure to determine the
2777 full pathname (if any) of the grep program. After Configure runs,
2778 the value is reset to a plain "grep" and is not useful.
2781 This variable contains a command that produces the text of the
2782 /etc/group file. This is normally "cat /etc/group", but can be
2783 "ypcat group" when NIS is used.
2784 On some systems, such as os390, there may be no equivalent
2785 command, in which case this variable is unset.
2787 groupstype (groupstype.U):
2788 This variable defines Groups_t to be something like gid_t, int,
2789 ushort, or whatever type is used for the second argument to
2790 getgroups() and setgroups(). Usually, this is the same as
2791 gidtype (gid_t), but sometimes it isn't.
2794 This variable is used internally by Configure to determine the
2795 full pathname (if any) of the gzip program. After Configure runs,
2796 the value is reset to a plain "gzip" and is not useful.
2798 h_fcntl (h_fcntl.U):
2799 This is variable gets set in various places to tell i_fcntl that
2800 <fcntl.h> should be included.
2802 h_sysfile (h_sysfile.U):
2803 This is variable gets set in various places to tell i_sys_file that
2804 <sys/file.h> should be included.
2807 Gives the type of hints used for previous answers. May be one of
2808 "default", "recommended" or "previous".
2811 This variable contains a command that produces the text of the
2812 /etc/hosts file. This is normally "cat /etc/hosts", but can be
2813 "ypcat hosts" when NIS is used.
2814 On some systems, such as os390, there may be no equivalent
2815 command, in which case this variable is unset.
2817 html1dir (html1dir.U):
2818 This variable contains the name of the directory in which html
2819 source pages are to be put. This directory is for pages
2820 that describe whole programs, not libraries or modules. It
2821 is intended to correspond roughly to section 1 of the Unix
2824 html1direxp (html1dir.U):
2825 This variable is the same as the html1dir variable, but is filename
2826 expanded at configuration time, for convenient use in makefiles.
2828 html3dir (html3dir.U):
2829 This variable contains the name of the directory in which html
2830 source pages are to be put. This directory is for pages
2831 that describe libraries or modules. It is intended to
2832 correspond roughly to section 3 of the Unix manuals.
2834 html3direxp (html3dir.U):
2835 This variable is the same as the html3dir variable, but is filename
2836 expanded at configuration time, for convenient use in makefiles.
2839 This variable is the size of an I16 in bytes.
2842 This variable contains the C type used for Perl's I16.
2845 This variable is the size of an I32 in bytes.
2848 This variable contains the C type used for Perl's I32.
2851 This variable is the size of an I64 in bytes.
2854 This variable contains the C type used for Perl's I64.
2857 This variable is the size of an I8 in bytes.
2860 This variable contains the C type used for Perl's I8.
2862 i_arpainet (i_arpainet.U):
2863 This variable conditionally defines the I_ARPA_INET symbol,
2864 and indicates whether a C program should include <arpa/inet.h>.
2866 i_assert (i_assert.U):
2867 This variable conditionally defines the I_ASSERT symbol, which
2868 indicates to the C program that <assert.h> exists and could be
2871 i_bsdioctl (i_sysioctl.U):
2872 This variable conditionally defines the I_SYS_BSDIOCTL symbol, which
2873 indicates to the C program that <sys/bsdioctl.h> exists and should
2876 i_crypt (i_crypt.U):
2877 This variable conditionally defines the I_CRYPT symbol, and indicates
2878 whether a C program should include <crypt.h>.
2881 This variable conditionally defines the I_DB symbol, and indicates
2882 whether a C program may include Berkeley's DB include file <db.h>.
2885 This variable conditionally defines the I_DBM symbol, which
2886 indicates to the C program that <dbm.h> exists and should
2889 i_dirent (i_dirent.U):
2890 This variable conditionally defines I_DIRENT, which indicates
2891 to the C program that it should include <dirent.h>.
2894 This variable conditionally defines the I_DLD symbol, which
2895 indicates to the C program that <dld.h> (GNU dynamic loading)
2896 exists and should be included.
2898 i_dlfcn (i_dlfcn.U):
2899 This variable conditionally defines the I_DLFCN symbol, which
2900 indicates to the C program that <dlfcn.h> exists and should
2903 i_fcntl (i_fcntl.U):
2904 This variable controls the value of I_FCNTL (which tells
2905 the C program to include <fcntl.h>).
2907 i_float (i_float.U):
2908 This variable conditionally defines the I_FLOAT symbol, and indicates
2909 whether a C program may include <float.h> to get symbols like DBL_MAX
2910 or DBL_MIN, i.e. machine dependent floating point values.
2913 This variable conditionally defines the I_FP symbol, and indicates
2914 whether a C program should include <fp.h>.
2916 i_fp_class (i_fp_class.U):
2917 This variable conditionally defines the I_FP_CLASS symbol, and indicates
2918 whether a C program should include <fp_class.h>.
2921 This variable conditionally defines the I_GDBM symbol, which
2922 indicates to the C program that <gdbm.h> exists and should
2925 i_gdbm_ndbm (i_ndbm.U):
2926 This variable conditionally defines the I_GDBM_NDBM symbol, which
2927 indicates to the C program that <gdbm-ndbm.h> exists and should
2928 be included. This is the location of the ndbm.h compatibility file
2931 i_gdbmndbm (i_ndbm.U):
2932 This variable conditionally defines the I_GDBMNDBM symbol, which
2933 indicates to the C program that <gdbm/ndbm.h> exists and should
2934 be included. This was the location of the ndbm.h compatibility file
2938 This variable conditionally defines the I_GRP symbol, and indicates
2939 whether a C program should include <grp.h>.
2941 i_ieeefp (i_ieeefp.U):
2942 This variable conditionally defines the I_IEEEFP symbol, and indicates
2943 whether a C program should include <ieeefp.h>.
2945 i_inttypes (i_inttypes.U):
2946 This variable conditionally defines the I_INTTYPES symbol,
2947 and indicates whether a C program should include <inttypes.h>.
2949 i_langinfo (i_langinfo.U):
2950 This variable conditionally defines the I_LANGINFO symbol,
2951 and indicates whether a C program should include <langinfo.h>.
2953 i_libutil (i_libutil.U):
2954 This variable conditionally defines the I_LIBUTIL symbol, and indicates
2955 whether a C program should include <libutil.h>.
2957 i_limits (i_limits.U):
2958 This variable conditionally defines the I_LIMITS symbol, and indicates
2959 whether a C program may include <limits.h> to get symbols like WORD_BIT
2962 i_locale (i_locale.U):
2963 This variable conditionally defines the I_LOCALE symbol,
2964 and indicates whether a C program should include <locale.h>.
2966 i_machcthr (i_machcthr.U):
2967 This variable conditionally defines the I_MACH_CTHREADS symbol,
2968 and indicates whether a C program should include <mach/cthreads.h>.
2970 i_malloc (i_malloc.U):
2971 This variable conditionally defines the I_MALLOC symbol, and indicates
2972 whether a C program should include <malloc.h>.
2974 i_mallocmalloc (i_mallocmalloc.U):
2975 This variable conditionally defines the I_MALLOCMALLOC symbol,
2976 and indicates whether a C program should include <malloc/malloc.h>.
2979 This variable conditionally defines the I_MATH symbol, and indicates
2980 whether a C program may include <math.h>.
2982 i_memory (i_memory.U):
2983 This variable conditionally defines the I_MEMORY symbol, and indicates
2984 whether a C program should include <memory.h>.
2986 i_mntent (i_mntent.U):
2987 This variable conditionally defines the I_MNTENT symbol, and indicates
2988 whether a C program should include <mntent.h>.
2991 This variable conditionally defines the I_NDBM symbol, which
2992 indicates to the C program that <ndbm.h> exists and should
2995 i_netdb (i_netdb.U):
2996 This variable conditionally defines the I_NETDB symbol, and indicates
2997 whether a C program should include <netdb.h>.
2999 i_neterrno (i_neterrno.U):
3000 This variable conditionally defines the I_NET_ERRNO symbol, which
3001 indicates to the C program that <net/errno.h> exists and should
3004 i_netinettcp (i_netinettcp.U):
3005 This variable conditionally defines the I_NETINET_TCP symbol,
3006 and indicates whether a C program should include <netinet/tcp.h>.
3009 This variable conditionally defines I_NETINET_IN, which indicates
3010 to the C program that it should include <netinet/in.h>. Otherwise,
3011 you may try <sys/in.h>.
3014 This variable conditionally defines the I_POLL symbol, and indicates
3015 whether a C program should include <poll.h>.
3018 This variable conditionally defines the I_PROT symbol, and indicates
3019 whether a C program should include <prot.h>.
3021 i_pthread (i_pthread.U):
3022 This variable conditionally defines the I_PTHREAD symbol,
3023 and indicates whether a C program should include <pthread.h>.
3026 This variable conditionally defines I_PWD, which indicates
3027 to the C program that it should include <pwd.h>.
3029 i_rpcsvcdbm (i_dbm.U):
3030 This variable conditionally defines the I_RPCSVC_DBM symbol, which
3031 indicates to the C program that <rpcsvc/dbm.h> exists and should
3032 be included. Some System V systems might need this instead of <dbm.h>.
3035 This variable conditionally defines the I_SFIO symbol,
3036 and indicates whether a C program should include <sfio.h>.
3038 i_sgtty (i_termio.U):
3039 This variable conditionally defines the I_SGTTY symbol, which
3040 indicates to the C program that it should include <sgtty.h> rather
3043 i_shadow (i_shadow.U):
3044 This variable conditionally defines the I_SHADOW symbol, and indicates
3045 whether a C program should include <shadow.h>.
3047 i_socks (i_socks.U):
3048 This variable conditionally defines the I_SOCKS symbol, and indicates
3049 whether a C program should include <socks.h>.
3051 i_stdarg (i_varhdr.U):
3052 This variable conditionally defines the I_STDARG symbol, which
3053 indicates to the C program that <stdarg.h> exists and should
3056 i_stddef (i_stddef.U):
3057 This variable conditionally defines the I_STDDEF symbol, which
3058 indicates to the C program that <stddef.h> exists and should
3061 i_stdlib (i_stdlib.U):
3062 This variable conditionally defines the I_STDLIB symbol, which
3063 indicates to the C program that <stdlib.h> exists and should
3066 i_string (i_string.U):
3067 This variable conditionally defines the I_STRING symbol, which
3068 indicates that <string.h> should be included rather than <strings.h>.
3070 i_sunmath (i_sunmath.U):
3071 This variable conditionally defines the I_SUNMATH symbol, and indicates
3072 whether a C program should include <sunmath.h>.
3074 i_sysaccess (i_sysaccess.U):
3075 This variable conditionally defines the I_SYS_ACCESS symbol,
3076 and indicates whether a C program should include <sys/access.h>.
3078 i_sysdir (i_sysdir.U):
3079 This variable conditionally defines the I_SYS_DIR symbol, and indicates
3080 whether a C program should include <sys/dir.h>.
3082 i_sysfile (i_sysfile.U):
3083 This variable conditionally defines the I_SYS_FILE symbol, and indicates
3084 whether a C program should include <sys/file.h> to get R_OK and friends.
3086 i_sysfilio (i_sysioctl.U):
3087 This variable conditionally defines the I_SYS_FILIO symbol, which
3088 indicates to the C program that <sys/filio.h> exists and should
3089 be included in preference to <sys/ioctl.h>.
3092 This variable conditionally defines I_SYS_IN, which indicates
3093 to the C program that it should include <sys/in.h> instead of
3096 i_sysioctl (i_sysioctl.U):
3097 This variable conditionally defines the I_SYS_IOCTL symbol, which
3098 indicates to the C program that <sys/ioctl.h> exists and should
3101 i_syslog (i_syslog.U):
3102 This variable conditionally defines the I_SYSLOG symbol,
3103 and indicates whether a C program should include <syslog.h>.
3105 i_sysmman (i_sysmman.U):
3106 This variable conditionally defines the I_SYS_MMAN symbol, and
3107 indicates whether a C program should include <sys/mman.h>.
3109 i_sysmode (i_sysmode.U):
3110 This variable conditionally defines the I_SYSMODE symbol,
3111 and indicates whether a C program should include <sys/mode.h>.
3113 i_sysmount (i_sysmount.U):
3114 This variable conditionally defines the I_SYSMOUNT symbol,
3115 and indicates whether a C program should include <sys/mount.h>.
3117 i_sysndir (i_sysndir.U):
3118 This variable conditionally defines the I_SYS_NDIR symbol, and indicates
3119 whether a C program should include <sys/ndir.h>.
3121 i_sysparam (i_sysparam.U):
3122 This variable conditionally defines the I_SYS_PARAM symbol, and indicates
3123 whether a C program should include <sys/param.h>.
3125 i_syspoll (i_syspoll.U):
3126 This variable conditionally defines the I_SYS_POLL symbol, which
3127 indicates to the C program that it should include <sys/poll.h>.
3129 i_sysresrc (i_sysresrc.U):
3130 This variable conditionally defines the I_SYS_RESOURCE symbol,
3131 and indicates whether a C program should include <sys/resource.h>.
3133 i_syssecrt (i_syssecrt.U):
3134 This variable conditionally defines the I_SYS_SECURITY symbol,
3135 and indicates whether a C program should include <sys/security.h>.
3137 i_sysselct (i_sysselct.U):
3138 This variable conditionally defines I_SYS_SELECT, which indicates
3139 to the C program that it should include <sys/select.h> in order to
3140 get the definition of struct timeval.
3142 i_syssockio (i_sysioctl.U):
3143 This variable conditionally defines I_SYS_SOCKIO to indicate to the
3144 C program that socket ioctl codes may be found in <sys/sockio.h>
3145 instead of <sys/ioctl.h>.
3147 i_sysstat (i_sysstat.U):
3148 This variable conditionally defines the I_SYS_STAT symbol,
3149 and indicates whether a C program should include <sys/stat.h>.
3151 i_sysstatfs (i_sysstatfs.U):
3152 This variable conditionally defines the I_SYSSTATFS symbol,
3153 and indicates whether a C program should include <sys/statfs.h>.
3155 i_sysstatvfs (i_sysstatvfs.U):
3156 This variable conditionally defines the I_SYSSTATVFS symbol,
3157 and indicates whether a C program should include <sys/statvfs.h>.
3159 i_systime (i_time.U):
3160 This variable conditionally defines I_SYS_TIME, which indicates
3161 to the C program that it should include <sys/time.h>.
3163 i_systimek (i_time.U):
3164 This variable conditionally defines I_SYS_TIME_KERNEL, which
3165 indicates to the C program that it should include <sys/time.h>
3166 with KERNEL defined.
3168 i_systimes (i_systimes.U):
3169 This variable conditionally defines the I_SYS_TIMES symbol, and indicates
3170 whether a C program should include <sys/times.h>.
3172 i_systypes (i_systypes.U):
3173 This variable conditionally defines the I_SYS_TYPES symbol,
3174 and indicates whether a C program should include <sys/types.h>.
3176 i_sysuio (i_sysuio.U):
3177 This variable conditionally defines the I_SYSUIO symbol, and indicates
3178 whether a C program should include <sys/uio.h>.
3180 i_sysun (i_sysun.U):
3181 This variable conditionally defines I_SYS_UN, which indicates
3182 to the C program that it should include <sys/un.h> to get UNIX
3183 domain socket definitions.
3185 i_sysutsname (i_sysutsname.U):
3186 This variable conditionally defines the I_SYSUTSNAME symbol,
3187 and indicates whether a C program should include <sys/utsname.h>.
3189 i_sysvfs (i_sysvfs.U):
3190 This variable conditionally defines the I_SYSVFS symbol,
3191 and indicates whether a C program should include <sys/vfs.h>.
3193 i_syswait (i_syswait.U):
3194 This variable conditionally defines I_SYS_WAIT, which indicates
3195 to the C program that it should include <sys/wait.h>.
3197 i_termio (i_termio.U):
3198 This variable conditionally defines the I_TERMIO symbol, which
3199 indicates to the C program that it should include <termio.h> rather
3202 i_termios (i_termio.U):
3203 This variable conditionally defines the I_TERMIOS symbol, which
3204 indicates to the C program that the POSIX <termios.h> file is
3208 This variable conditionally defines I_TIME, which indicates
3209 to the C program that it should include <time.h>.
3211 i_unistd (i_unistd.U):
3212 This variable conditionally defines the I_UNISTD symbol, and indicates
3213 whether a C program should include <unistd.h>.
3215 i_ustat (i_ustat.U):
3216 This variable conditionally defines the I_USTAT symbol, and indicates
3217 whether a C program should include <ustat.h>.
3219 i_utime (i_utime.U):
3220 This variable conditionally defines the I_UTIME symbol, and indicates
3221 whether a C program should include <utime.h>.
3223 i_values (i_values.U):
3224 This variable conditionally defines the I_VALUES symbol, and indicates
3225 whether a C program may include <values.h> to get symbols like MAXLONG
3228 i_varargs (i_varhdr.U):
3229 This variable conditionally defines I_VARARGS, which indicates
3230 to the C program that it should include <varargs.h>.
3232 i_varhdr (i_varhdr.U):
3233 Contains the name of the header to be included to get va_dcl definition.
3234 Typically one of varargs.h or stdarg.h.
3236 i_vfork (i_vfork.U):
3237 This variable conditionally defines the I_VFORK symbol, and indicates
3238 whether a C program should include vfork.h.
3240 ignore_versioned_solibs (libs.U):
3241 This variable should be non-empty if non-versioned shared
3242 libraries (libfoo.so.x.y) are to be ignored (because they
3243 cannot be linked against).
3245 inc_version_list (inc_version_list.U):
3246 This variable specifies the list of subdirectories in over
3247 which perl.c:incpush() and lib/lib.pm will automatically
3248 search when adding directories to @INC. The elements in
3249 the list are separated by spaces. This is only useful
3250 if you have a perl library directory tree structured like the
3251 default one. See INSTALL for how this works. The versioned
3252 site_perl directory was introduced in 5.005, so that is the
3253 lowest possible value.
3255 This list includes architecture-dependent directories back to
3256 version $api_versionstring (e.g. 5.5.640) and
3257 architecture-independent directories all the way back to
3260 inc_version_list_init (inc_version_list.U):
3261 This variable holds the same list as inc_version_list, but
3262 each item is enclosed in double quotes and separated by commas,
3263 suitable for use in the PERL_INC_VERSION_LIST initialization.
3266 This variable must preceed the normal include path to get hte
3267 right one, as in "$incpath/usr/include" or "$incpath/usr/lib".
3268 Value can be "" or "/bsd43" on mips.
3271 This variable is defined but not used by Configure.
3272 The value is a plain '' and is not useful.
3274 initialinstalllocation (bin.U):
3275 When userelocatableinc is true, this variable holds the location
3276 that make install should copy the perl binary to, with all the
3277 run-time relocatable paths calculated from this at install time.
3278 When used, it is initialised to the original value of binexp, and
3279 then binexp is set to '.../', as the other binaries are found
3280 relative to the perl binary.
3282 installarchlib (archlib.U):
3283 This variable is really the same as archlibexp but may differ on
3284 those systems using AFS. For extra portability, only this variable
3285 should be used in makefiles.
3288 This variable is the same as binexp unless AFS is running in which case
3289 the user is explicitely prompted for it. This variable should always
3290 be used in your makefiles for maximum portability.
3292 installhtml1dir (html1dir.U):
3293 This variable is really the same as html1direxp, unless you are
3294 using a different installprefix. For extra portability, you
3295 should only use this variable within your makefiles.
3297 installhtml3dir (html3dir.U):
3298 This variable is really the same as html3direxp, unless you are
3299 using a different installprefix. For extra portability, you
3300 should only use this variable within your makefiles.
3302 installman1dir (man1dir.U):
3303 This variable is really the same as man1direxp, unless you are using
3304 AFS in which case it points to the read/write location whereas
3305 man1direxp only points to the read-only access location. For extra
3306 portability, you should only use this variable within your makefiles.
3308 installman3dir (man3dir.U):
3309 This variable is really the same as man3direxp, unless you are using
3310 AFS in which case it points to the read/write location whereas
3311 man3direxp only points to the read-only access location. For extra
3312 portability, you should only use this variable within your makefiles.
3314 installprefix (installprefix.U):
3315 This variable holds the name of the directory below which
3316 "make install" will install the package. For most users, this
3317 is the same as prefix. However, it is useful for
3318 installing the software into a different (usually temporary)
3319 location after which it can be bundled up and moved somehow
3320 to the final location specified by prefix.
3322 installprefixexp (installprefix.U):
3323 This variable holds the full absolute path of installprefix
3324 with all ~-expansion done.
3326 installprivlib (privlib.U):
3327 This variable is really the same as privlibexp but may differ on
3328 those systems using AFS. For extra portability, only this variable
3329 should be used in makefiles.
3331 installscript (scriptdir.U):
3332 This variable is usually the same as scriptdirexp, unless you are on
3333 a system running AFS, in which case they may differ slightly. You
3334 should always use this variable within your makefiles for portability.
3336 installsitearch (sitearch.U):
3337 This variable is really the same as sitearchexp but may differ on
3338 those systems using AFS. For extra portability, only this variable
3339 should be used in makefiles.
3341 installsitebin (sitebin.U):
3342 This variable is usually the same as sitebinexp, unless you are on
3343 a system running AFS, in which case they may differ slightly. You
3344 should always use this variable within your makefiles for portability.
3346 installsitehtml1dir (sitehtml1dir.U):
3347 This variable is really the same as sitehtml1direxp, unless you are using
3348 AFS in which case it points to the read/write location whereas
3349 html1direxp only points to the read-only access location. For extra
3350 portability, you should only use this variable within your makefiles.
3352 installsitehtml3dir (sitehtml3dir.U):
3353 This variable is really the same as sitehtml3direxp, unless you are using
3354 AFS in which case it points to the read/write location whereas
3355 html3direxp only points to the read-only access location. For extra
3356 portability, you should only use this variable within your makefiles.
3358 installsitelib (sitelib.U):
3359 This variable is really the same as sitelibexp but may differ on
3360 those systems using AFS. For extra portability, only this variable
3361 should be used in makefiles.
3363 installsiteman1dir (siteman1dir.U):
3364 This variable is really the same as siteman1direxp, unless you are using
3365 AFS in which case it points to the read/write location whereas
3366 man1direxp only points to the read-only access location. For extra
3367 portability, you should only use this variable within your makefiles.
3369 installsiteman3dir (siteman3dir.U):
3370 This variable is really the same as siteman3direxp, unless you are using
3371 AFS in which case it points to the read/write location whereas
3372 man3direxp only points to the read-only access location. For extra
3373 portability, you should only use this variable within your makefiles.
3375 installsitescript (sitescript.U):
3376 This variable is usually the same as sitescriptexp, unless you are on
3377 a system running AFS, in which case they may differ slightly. You
3378 should always use this variable within your makefiles for portability.
3380 installstyle (installstyle.U):
3381 This variable describes the "style" of the perl installation.
3382 This is intended to be useful for tools that need to
3383 manipulate entire perl distributions. Perl itself doesn't use
3384 this to find its libraries -- the library directories are
3385 stored directly in Config.pm. Currently, there are only two
3386 styles: "lib" and "lib/perl5". The default library locations
3387 (e.g. privlib, sitelib) are either $prefix/lib or
3388 $prefix/lib/perl5. The former is useful if $prefix is a
3389 directory dedicated to perl (e.g. /opt/perl), while the latter
3390 is useful if $prefix is shared by many packages, e.g. if
3393 Unfortunately, while this "style" variable is used to set
3394 defaults for all three directory hierarchies (core, vendor, and
3395 site), there is no guarantee that the same style is actually
3396 appropriate for all those directories. For example, $prefix
3397 might be /opt/perl, but $siteprefix might be /usr/local.
3398 (Perhaps, in retrospect, the "lib" style should never have been
3399 supported, but it did seem like a nice idea at the time.)
3401 The situation is even less clear for tools such as MakeMaker
3402 that can be used to install additional modules into
3403 non-standard places. For example, if a user intends to install
3404 a module into a private directory (perhaps by setting PREFIX on
3405 the Makefile.PL command line), then there is no reason to
3406 assume that the Configure-time $installstyle setting will be
3407 relevant for that PREFIX.
3409 This may later be extended to include other information, so
3410 be careful with pattern-matching on the results.
3412 For compatibility with perl5.005 and earlier, the default
3413 setting is based on whether or not $prefix contains the string
3416 installusrbinperl (instubperl.U):
3417 This variable tells whether Perl should be installed also as
3418 /usr/bin/perl in addition to
3421 installvendorarch (vendorarch.U):
3422 This variable is really the same as vendorarchexp but may differ on
3423 those systems using AFS. For extra portability, only this variable
3424 should be used in makefiles.
3426 installvendorbin (vendorbin.U):
3427 This variable is really the same as vendorbinexp but may differ on
3428 those systems using AFS. For extra portability, only this variable
3429 should be used in makefiles.
3431 installvendorhtml1dir (vendorhtml1dir.U):
3432 This variable is really the same as vendorhtml1direxp but may differ on
3433 those systems using AFS. For extra portability, only this variable
3434 should be used in makefiles.
3436 installvendorhtml3dir (vendorhtml3dir.U):
3437 This variable is really the same as vendorhtml3direxp but may differ on
3438 those systems using AFS. For extra portability, only this variable
3439 should be used in makefiles.
3441 installvendorlib (vendorlib.U):
3442 This variable is really the same as vendorlibexp but may differ on
3443 those systems using AFS. For extra portability, only this variable
3444 should be used in makefiles.
3446 installvendorman1dir (vendorman1dir.U):
3447 This variable is really the same as vendorman1direxp but may differ on
3448 those systems using AFS. For extra portability, only this variable
3449 should be used in makefiles.
3451 installvendorman3dir (vendorman3dir.U):
3452 This variable is really the same as vendorman3direxp but may differ on
3453 those systems using AFS. For extra portability, only this variable
3454 should be used in makefiles.
3456 installvendorscript (vendorscript.U):
3457 This variable is really the same as vendorscriptexp but may differ on
3458 those systems using AFS. For extra portability, only this variable
3459 should be used in makefiles.
3461 intsize (intsize.U):
3462 This variable contains the value of the INTSIZE symbol, which
3463 indicates to the C program how many bytes there are in an int.
3465 issymlink (issymlink.U):
3466 This variable holds the test command to test for a symbolic link
3467 (if they are supported). Typical values include 'test -h' and
3470 ivdformat (perlxvf.U):
3471 This variable contains the format string used for printing
3472 a Perl IV as a signed decimal integer.
3475 This variable is the size of an IV in bytes.
3478 This variable contains the C type used for Perl's IV.
3480 known_extensions (Extensions.U):
3481 This variable holds a list of all XS extensions included in
3485 This variable is defined but not used by Configure.
3486 The value is a plain '' and is not useful.
3489 This variable indicates the program to be used to link
3490 libraries for dynamic loading. On some systems, it is 'ld'.
3491 On ELF systems, it should be $cc. Mostly, we'll try to respect
3492 the hint file setting.
3494 lddlflags (dlsrc.U):
3495 This variable contains any special flags that might need to be
3496 passed to $ld to create a shared library suitable for dynamic
3497 loading. It is up to the makefile to use it. For hpux, it
3498 should be '-b'. For sunos 4.1, it is empty.
3500 ldflags (ccflags.U):
3501 This variable contains any additional C loader flags desired by
3502 the user. It is up to the Makefile to use this.
3504 ldflags_uselargefiles (uselfs.U):
3505 This variable contains the loader flags needed by large file builds
3506 and added to ldflags by hints files.
3508 ldlibpthname (libperl.U):
3509 This variable holds the name of the shared library
3510 search path, often LD_LIBRARY_PATH. To get an empty
3511 string, the hints file must set this to 'none'.
3514 This variable is used internally by Configure to determine the
3515 full pathname (if any) of the less program. After Configure runs,
3516 the value is reset to a plain "less" and is not useful.
3519 This is an old synonym for _a.
3522 This variable contains the location of the C library.
3524 libperl (libperl.U):
3525 The perl executable is obtained by linking perlmain.c with
3526 libperl, any static extensions (usually just DynaLoader),
3527 and any other libraries needed on this system. libperl
3528 is usually libperl.a, but can also be libperl.so.xxx if
3529 the user wishes to build a perl executable with a shared
3533 This variable holds the general path (space-separated) used to find
3534 libraries. It is intended to be used by other units.
3537 This variable holds the additional libraries we want to use.
3538 It is up to the Makefile to deal with it. The list can be empty.
3541 This variable holds the directory names aka dirnames of the libraries
3542 we found and accepted, duplicates are removed.
3545 This variable holds the filenames aka basenames of the libraries
3546 we found and accepted.
3549 This variable holds the full pathnames of the libraries
3550 we found and accepted.
3553 This variable holds the directory names probed for libraries.
3555 libswanted (Myinit.U):
3556 This variable holds a list of all the libraries we want to
3557 search. The order is chosen to pick up the c library
3558 ahead of ucb or bsd libraries for SVR4.
3560 libswanted_uselargefiles (uselfs.U):
3561 This variable contains the libraries needed by large file builds
3562 and added to ldflags by hints files. It is a space separated list
3563 of the library names without the "lib" prefix or any suffix, just
3567 This variable is defined but not used by Configure.
3568 The value is a plain '' and is not useful.
3571 This variable is defined but not used by Configure.
3572 The value is a plain '' and is not useful.
3574 lkflags (ccflags.U):
3575 This variable contains any additional C partial linker flags desired by
3576 the user. It is up to the Makefile to use this.
3579 This variable is used internally by Configure to determine the
3580 full pathname (if any) of the ln program. After Configure runs,
3581 the value is reset to a plain "ln" and is not useful.
3584 This variable holds the name of the command to make
3585 symbolic links (if they are supported). It can be used
3586 in the Makefile. It is either 'ln -s' or 'ln'
3588 localtime_r_proto (d_localtime_r.U):
3589 This variable encodes the prototype of localtime_r.
3590 It is zero if d_localtime_r is undef, and one of the
3591 REENTRANT_PROTO_T_ABC macros of reentr.h if d_localtime_r
3594 locincpth (ccflags.U):
3595 This variable contains a list of additional directories to be
3596 searched by the compiler. The appropriate '-I' directives will
3597 be added to ccflags. This is intended to simplify setting
3598 local directories from the Configure command line.
3599 It's not much, but it parallels the loclibpth stuff in libpth.U.
3601 loclibpth (libpth.U):
3602 This variable holds the paths (space-separated) used to find local
3603 libraries. It is prepended to libpth, and is intended to be easily
3604 set from the command line.
3606 longdblsize (d_longdbl.U):
3607 This variable contains the value of the LONG_DOUBLESIZE symbol, which
3608 indicates to the C program how many bytes there are in a long double,
3609 if this system supports long doubles.
3611 longlongsize (d_longlong.U):
3612 This variable contains the value of the LONGLONGSIZE symbol, which
3613 indicates to the C program how many bytes there are in a long long,
3614 if this system supports long long.
3616 longsize (intsize.U):
3617 This variable contains the value of the LONGSIZE symbol, which
3618 indicates to the C program how many bytes there are in a long.
3621 This variable is defined but not used by Configure.
3622 The value is a plain '' and is not useful.
3625 This variable is defined but not used by Configure.
3626 The value is a plain '' and is not useful.
3629 This variable is used internally by Configure to determine the
3630 full pathname (if any) of the ls program. After Configure runs,
3631 the value is reset to a plain "ls" and is not useful.
3633 lseeksize (lseektype.U):
3634 This variable defines lseektype to be something like off_t, long,
3635 or whatever type is used to declare lseek offset's type in the
3636 kernel (which also appears to be lseek's return type).
3638 lseektype (lseektype.U):
3639 This variable defines lseektype to be something like off_t, long,
3640 or whatever type is used to declare lseek offset's type in the
3641 kernel (which also appears to be lseek's return type).
3644 This variable indicates that the Misc Attribute Definition code is to
3648 If the Misc Attribute Decoration is to be compiled, this variable is
3649 set to the name of the extra header files to be used, else it is ''
3652 If the Misc Attribute Decoration is to be compiled, this variable is
3653 set to the name of the extra object 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 C source files to be used, else it is ''
3660 This variable is defined but not used by Configure.
3661 The value is a plain '' and is not useful.
3664 This variable is defined but not used by Configure.
3665 The value is a plain '' and is not useful.
3668 This variable is used internally by Configure to determine the
3669 full pathname (if any) of the make program. After Configure runs,
3670 the value is reset to a plain "make" and is not useful.
3672 make_set_make (make.U):
3673 Some versions of 'make' set the variable MAKE. Others do not.
3674 This variable contains the string to be included in Makefile.SH
3675 so that MAKE is set if needed, and not if not needed.
3676 Possible values are:
3678 make_set_make='#' # If your make program handles this for you,
3680 make_set_make="MAKE=$make" # if it doesn't.
3682 This uses a comment character so that we can distinguish a
3683 'set' value (from a previous config.sh or Configure '-D' option)
3684 from an uncomputed value.
3686 mallocobj (mallocsrc.U):
3687 This variable contains the name of the malloc.o that this package
3688 generates, if that malloc.o is preferred over the system malloc.
3689 Otherwise the value is null. This variable is intended for generating
3690 Makefiles. See mallocsrc.
3692 mallocsrc (mallocsrc.U):
3693 This variable contains the name of the malloc.c that comes with
3694 the package, if that malloc.c is preferred over the system malloc.
3695 Otherwise the value is null. This variable is intended for generating
3698 malloctype (mallocsrc.U):
3699 This variable contains the kind of ptr returned by malloc and realloc.
3701 man1dir (man1dir.U):
3702 This variable contains the name of the directory in which manual
3703 source pages are to be put. It is the responsibility of the
3704 Makefile.SH to get the value of this into the proper command.
3705 You must be prepared to do the ~name expansion yourself.
3707 man1direxp (man1dir.U):
3708 This variable is the same as the man1dir variable, but is filename
3709 expanded at configuration time, for convenient use in makefiles.
3711 man1ext (man1dir.U):
3712 This variable contains the extension that the manual page should
3713 have: one of 'n', 'l', or '1'. The Makefile must supply the '.'.
3716 man3dir (man3dir.U):
3717 This variable contains the name of the directory in which manual
3718 source pages are to be put. It is the responsibility of the
3719 Makefile.SH to get the value of this into the proper command.
3720 You must be prepared to do the ~name expansion yourself.
3722 man3direxp (man3dir.U):
3723 This variable is the same as the man3dir variable, but is filename
3724 expanded at configuration time, for convenient use in makefiles.
3726 man3ext (man3dir.U):
3727 This variable contains the extension that the manual page should
3728 have: one of 'n', 'l', or '3'. The Makefile must supply the '.'.
3731 mips_type (usrinc.U):
3732 This variable holds the environment type for the mips system.
3733 Possible values are "BSD 4.3" and "System V".
3735 mistrustnm (Csym.U):
3736 This variable can be used to establish a fallthrough for the cases
3737 where nm fails to find a symbol. If usenm is false or usenm is true
3738 and mistrustnm is false, this variable has no effect. If usenm is true
3739 and mistrustnm is "compile", a test program will be compiled to try to
3740 find any symbol that can't be located via nm lookup. If mistrustnm is
3741 "run", the test program will be run as well as being compiled.
3744 This variable is used internally by Configure to determine the
3745 full pathname (if any) of the mkdir program. After Configure runs,
3746 the value is reset to a plain "mkdir" and is not useful.
3748 mmaptype (d_mmap.U):
3749 This symbol contains the type of pointer returned by mmap()
3750 (and simultaneously the type of the first argument).
3751 It can be 'void *' or 'caddr_t'.
3753 modetype (modetype.U):
3754 This variable defines modetype to be something like mode_t,
3755 int, unsigned short, or whatever type is used to declare file
3756 modes for system calls.
3759 This variable is used internally by Configure to determine the
3760 full pathname (if any) of the more program. After Configure runs,
3761 the value is reset to a plain "more" and is not useful.
3763 multiarch (multiarch.U):
3764 This variable conditionally defines the MULTIARCH symbol
3765 which signifies the presence of multiplatform files.
3766 This is normally set by hints files.
3769 This variable is defined but not used by Configure.
3770 The value is a plain '' and is not useful.
3772 myarchname (archname.U):
3773 This variable holds the architecture name computed by Configure in
3774 a previous run. It is not intended to be perused by any user and
3775 should never be set in a hint file.
3777 mydomain (myhostname.U):
3778 This variable contains the eventual value of the MYDOMAIN symbol,
3779 which is the domain of the host the program is going to run on.
3780 The domain must be appended to myhostname to form a complete host name.
3781 The dot comes with mydomain, and need not be supplied by the program.
3783 myhostname (myhostname.U):
3784 This variable contains the eventual value of the MYHOSTNAME symbol,
3785 which is the name of the host the program is going to run on.
3786 The domain is not kept with hostname, but must be gotten from mydomain.
3787 The dot comes with mydomain, and need not be supplied by the program.
3789 myuname (Oldconfig.U):
3790 The output of 'uname -a' if available, otherwise the hostname. On Xenix,
3791 pseudo variables assignments in the output are stripped, thank you. The
3792 whole thing is then lower-cased.
3795 This variable contains the '-n' flag if that is what causes the echo
3796 command to suppress newline. Otherwise it is null. Correct usage is
3797 $echo $n "prompt for a question: $c".
3799 need_va_copy (need_va_copy.U):
3800 This symbol, if defined, indicates that the system stores
3801 the variable argument list datatype, va_list, in a format
3802 that cannot be copied by simple assignment, so that some
3803 other means must be used when copying is required.
3804 As such systems vary in their provision (or non-provision)
3805 of copying mechanisms, handy.h defines a platform-
3806 independent macro, Perl_va_copy(src, dst), to do the job.
3808 netdb_hlen_type (netdbtype.U):
3809 This variable holds the type used for the 2nd argument to
3810 gethostbyaddr(). Usually, this is int or size_t or unsigned.
3811 This is only useful if you have gethostbyaddr(), naturally.
3813 netdb_host_type (netdbtype.U):
3814 This variable holds the type used for the 1st argument to
3815 gethostbyaddr(). Usually, this is char * or void *, possibly
3816 with or without a const prefix.
3817 This is only useful if you have gethostbyaddr(), naturally.
3819 netdb_name_type (netdbtype.U):
3820 This variable holds the type used for the argument to
3821 gethostbyname(). Usually, this is char * or const char *.
3822 This is only useful if you have gethostbyname(), naturally.
3824 netdb_net_type (netdbtype.U):
3825 This variable holds the type used for the 1st argument to
3826 getnetbyaddr(). Usually, this is int or long.
3827 This is only useful if you have getnetbyaddr(), naturally.
3830 This variable is used internally by Configure to determine the
3831 full pathname (if any) of the nm program. After Configure runs,
3832 the value is reset to a plain "nm" and is not useful.
3835 This variable holds the options that may be necessary for nm.
3837 nm_so_opt (usenm.U):
3838 This variable holds the options that may be necessary for nm
3839 to work on a shared library but that can not be used on an
3840 archive library. Currently, this is only used by Linux, where
3841 nm --dynamic is *required* to get symbols from an ELF library which
3842 has been stripped, but nm --dynamic is *fatal* on an archive library.
3843 Maybe Linux should just always set usenm=false.
3845 nonxs_ext (Extensions.U):
3846 This variable holds a list of all non-xs extensions included
3847 in the package. All of them will be built.
3850 This variable is used internally by Configure to determine the
3851 full pathname (if any) of the nroff program. After Configure runs,
3852 the value is reset to a plain "nroff" and is not useful.
3854 nv_overflows_integers_at (perlxv.U):
3855 This variable gives the largest integer value that NVs can hold
3856 as a constant floating point expression.
3857 If it could not be determined, it holds the value 0.
3859 nv_preserves_uv_bits (perlxv.U):
3860 This variable indicates how many of bits type uvtype
3861 a variable nvtype can preserve.
3863 nveformat (perlxvf.U):
3864 This variable contains the format string used for printing
3865 a Perl NV using %e-ish floating point format.
3867 nvEUformat (perlxvf.U):
3868 This variable contains the format string used for printing
3869 a Perl NV using %E-ish floating point format.
3871 nvfformat (perlxvf.U):
3872 This variable confains the format string used for printing
3873 a Perl NV using %f-ish floating point format.
3875 nvFUformat (perlxvf.U):
3876 This variable confains the format string used for printing
3877 a Perl NV using %F-ish floating point format.
3879 nvgformat (perlxvf.U):
3880 This variable contains the format string used for printing
3881 a Perl NV using %g-ish floating point format.
3883 nvGUformat (perlxvf.U):
3884 This variable contains the format string used for printing
3885 a Perl NV using %G-ish floating point format.
3888 This variable is the size of an NV in bytes.
3891 This variable contains the C type used for Perl's NV.
3893 o_nonblock (nblock_io.U):
3894 This variable bears the symbol value to be used during open() or fcntl()
3895 to turn on non-blocking I/O for a file descriptor. If you wish to switch
3896 between blocking and non-blocking, you may try ioctl(FIOSNBIO) instead,
3897 but that is only supported by some devices.
3900 This is an old synonym for _o.
3902 old_pthread_create_joinable (d_pthrattrj.U):
3903 This variable defines the constant to use for creating joinable
3904 (aka undetached) pthreads. Unused if pthread.h defines
3905 PTHREAD_CREATE_JOINABLE. If used, possible values are
3906 PTHREAD_CREATE_UNDETACHED and __UNDETACHED.
3908 optimize (ccflags.U):
3909 This variable contains any optimizer/debugger flag that should be used.
3910 It is up to the Makefile to use it.
3912 orderlib (orderlib.U):
3913 This variable is "true" if the components of libraries must be ordered
3914 (with `lorder $* | tsort`) before placing them in an archive. Set to
3915 "false" if ranlib or ar can generate random libraries.
3917 osname (Oldconfig.U):
3918 This variable contains the operating system name (e.g. sunos,
3919 solaris, hpux, etc.). It can be useful later on for setting
3920 defaults. Any spaces are replaced with underscores. It is set
3921 to a null string if we can't figure it out.
3923 osvers (Oldconfig.U):
3924 This variable contains the operating system version (e.g.
3925 4.1.3, 5.2, etc.). It is primarily used for helping select
3926 an appropriate hints file, but might be useful elsewhere for
3927 setting defaults. It is set to '' if we can't figure it out.
3928 We try to be flexible about how much of the version number
3929 to keep, e.g. if 4.1.1, 4.1.2, and 4.1.3 are essentially the
3930 same for this package, hints files might just be os_4.0 or
3931 os_4.1, etc., not keeping separate files for each little release.
3933 otherlibdirs (otherlibdirs.U):
3934 This variable contains a colon-separated set of paths for the perl
3935 binary to search for additional library files or modules.
3936 These directories will be tacked to the end of @INC.
3937 Perl will automatically search below each path for version-
3938 and architecture-specific directories. See inc_version_list
3940 A value of ' ' means 'none' and is used to preserve this value
3941 for the next run through Configure.
3943 package (package.U):
3944 This variable contains the name of the package being constructed.
3945 It is primarily intended for the use of later Configure units.
3948 This variable contains the name of the preferred pager on the system.
3949 Usual values are (the full pathnames of) more, less, pg, or cat.
3952 This variable contains a command that produces the text of the
3953 /etc/passwd file. This is normally "cat /etc/passwd", but can be
3954 "ypcat passwd" when NIS is used.
3955 On some systems, such as os390, there may be no equivalent
3956 command, in which case this variable is unset.
3958 patchlevel (patchlevel.U):
3959 The patchlevel level of this package.
3960 The value of patchlevel comes from the patchlevel.h file.
3961 In a version number such as 5.6.1, this is the "6".
3962 In patchlevel.h, this is referred to as "PERL_VERSION".
3965 This is an old synonym for p_ in Head.U, the character
3966 used to separate elements in the command shell search PATH.
3969 This variable is defined but not used by Configure.
3970 The value is a plain '' and is not useful.
3973 This variable contains the full path (if any) to a previously
3974 installed perl5.005 or later suitable for running the script
3975 to determine inc_version_list.
3977 PERL_API_REVISION (patchlevel.h):
3978 This number describes the earliest compatible PERL_REVISION of
3979 Perl ("compatibility" here being defined as sufficient binary/API
3980 compatibility to run XS code built with the older version).
3981 Normally this does not change across maintenance releases.
3982 Please read the comment in patchlevel.h.
3984 PERL_API_SUBVERSION (patchlevel.h):
3985 This number describes the earliest compatible PERL_SUBVERSION of
3986 Perl ("compatibility" here being defined as sufficient binary/API
3987 compatibility to run XS code built with the older version).
3988 Normally this does not change across maintenance releases.
3989 Please read the comment in patchlevel.h.
3991 PERL_API_VERSION (patchlevel.h):
3992 This number describes the earliest compatible PERL_VERSION of
3993 Perl ("compatibility" here being defined as sufficient binary/API
3994 compatibility to run XS code built with the older version).
3995 Normally this does not change across maintenance releases.
3996 Please read the comment in patchlevel.h.
3998 PERL_CONFIG_SH (Oldsyms.U):
3999 This is set to 'true' in config.sh so that a shell script
4000 sourcing config.sh can tell if it has been sourced already.
4002 PERL_PATCHLEVEL (Oldsyms.U):
4003 This symbol reflects the patchlevel, if available. Will usually
4004 come from the .patch file, which is available when the perl
4005 source tree was fetched with rsync.
4007 perl_patchlevel (patchlevel.U):
4008 This is the Perl patch level, a numeric change identifier,
4009 as defined by whichever source code maintenance system
4010 is used to maintain the patches; currently Perforce.
4011 It does not correlate with the Perl version numbers or
4012 the maintenance versus development dichotomy except
4013 by also being increasing.
4015 PERL_REVISION (Oldsyms.U):
4016 In a Perl version number such as 5.6.2, this is the 5.
4017 This value is manually set in patchlevel.h
4019 PERL_SUBVERSION (Oldsyms.U):
4020 In a Perl version number such as 5.6.2, this is the 2.
4021 Values greater than 50 represent potentially unstable
4022 development subversions.
4023 This value is manually set in patchlevel.h
4025 PERL_VERSION (Oldsyms.U):
4026 In a Perl version number such as 5.6.2, this is the 6.
4027 This value is manually set in patchlevel.h
4029 perladmin (perladmin.U):
4030 Electronic mail address of the perl5 administrator.
4033 The list of libraries needed by Perl only (any libraries needed
4034 by extensions only will by dropped, if using dynamic loading).
4036 perlpath (perlpath.U):
4037 This variable contains the eventual value of the PERLPATH symbol,
4038 which contains the name of the perl interpreter to be used in
4039 shell scripts and in the "eval 'exec'" idiom. This variable is
4040 not necessarily the pathname of the file containing the perl
4041 interpreter; you must append the executable extension (_exe) if
4042 it is not already present. Note that Perl code that runs during
4043 the Perl build process cannot reference this variable, as Perl
4044 may not have been installed, or even if installed, may be a
4045 different version of Perl.
4048 This variable is used internally by Configure to determine the
4049 full pathname (if any) of the pg program. After Configure runs,
4050 the value is reset to a plain "pg" and is not useful.
4052 phostname (myhostname.U):
4053 This variable contains the eventual value of the PHOSTNAME symbol,
4054 which is a command that can be fed to popen() to get the host name.
4055 The program should probably not presume that the domain is or isn't
4058 pidtype (pidtype.U):
4059 This variable defines PIDTYPE to be something like pid_t, int,
4060 ushort, or whatever type is used to declare process ids in the kernel.
4063 Holds the private path used by Configure to find out the libraries.
4064 Its value is prepend to libpth. This variable takes care of special
4065 machines, like the mips. Usually, it should be empty.
4068 This variable is defined but not used by Configure.
4069 The value is a plain '' and is not useful.
4072 This variable is defined but not used by Configure.
4073 The value is a plain '' and is not useful.
4076 This variable holds the name of the directory below which the
4077 user will install the package. Usually, this is /usr/local, and
4078 executables go in /usr/local/bin, library stuff in /usr/local/lib,
4079 man pages in /usr/local/man, etc. It is only used to set defaults
4080 for things in bin.U, mansrc.U, privlib.U, or scriptdir.U.
4082 prefixexp (prefix.U):
4083 This variable holds the full absolute path of the directory below
4084 which the user will install the package. Derived from prefix.
4086 privlib (privlib.U):
4087 This variable contains the eventual value of the PRIVLIB symbol,
4088 which is the name of the private library for this package. It may
4089 have a ~ on the front. It is up to the makefile to eventually create
4090 this directory while performing installation (with ~ substitution).
4092 privlibexp (privlib.U):
4093 This variable is the ~name expanded version of privlib, so that you
4094 may use it directly in Makefiles or shell scripts.
4096 procselfexe (d_procselfexe.U):
4097 If d_procselfexe is defined, $procselfexe is the filename
4098 of the symbolic link pointing to the absolute pathname of
4099 the executing program.
4101 prototype (prototype.U):
4102 This variable holds the eventual value of CAN_PROTOTYPE, which
4103 indicates the C compiler can handle funciton prototypes.
4105 ptrsize (ptrsize.U):
4106 This variable contains the value of the PTRSIZE symbol, which
4107 indicates to the C program how many bytes there are in a pointer.
4109 quadkind (quadtype.U):
4110 This variable, if defined, encodes the type of a quad:
4111 1 = int, 2 = long, 3 = long long, 4 = int64_t.
4113 quadtype (quadtype.U):
4114 This variable defines Quad_t to be something like long, int,
4115 long long, int64_t, or whatever type is used for 64-bit integers.
4117 randbits (randfunc.U):
4118 Indicates how many bits are produced by the function used to
4119 generate normalized random numbers.
4121 randfunc (randfunc.U):
4122 Indicates the name of the random number function to use.
4123 Values include drand48, random, and rand. In C programs,
4124 the 'Drand01' macro is defined to generate uniformly distributed
4125 random numbers over the range [0., 1.[ (see drand01 and nrand).
4127 random_r_proto (d_random_r.U):
4128 This variable encodes the prototype of random_r.
4129 It is zero if d_random_r is undef, and one of the
4130 REENTRANT_PROTO_T_ABC macros of reentr.h if d_random_r
4133 randseedtype (randfunc.U):
4134 Indicates the type of the argument of the seedfunc.
4136 ranlib (orderlib.U):
4137 This variable is set to the pathname of the ranlib program, if it is
4138 needed to generate random libraries. Set to ":" if ar can generate
4139 random libraries or if random libraries are not supported
4141 rd_nodata (nblock_io.U):
4142 This variable holds the return code from read() when no data is
4143 present. It should be -1, but some systems return 0 when O_NDELAY is
4144 used, which is a shame because you cannot make the difference between
4145 no data and an EOF.. Sigh!
4147 readdir64_r_proto (d_readdir64_r.U):
4148 This variable encodes the prototype of readdir64_r.
4149 It is zero if d_readdir64_r is undef, and one of the
4150 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir64_r
4153 readdir_r_proto (d_readdir_r.U):
4154 This variable encodes the prototype of readdir_r.
4155 It is zero if d_readdir_r is undef, and one of the
4156 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir_r
4159 revision (patchlevel.U):
4160 The value of revision comes from the patchlevel.h file.
4161 In a version number such as 5.6.1, this is the "5".
4162 In patchlevel.h, this is referred to as "PERL_REVISION".
4165 This variable is used internally by Configure to determine the
4166 full pathname (if any) of the rm program. After Configure runs,
4167 the value is reset to a plain "rm" and is not useful.
4170 This is a cleanup variable for try test programs.
4171 Internal Configure use only.
4174 This variable is defined but not used by Configure.
4175 The value is a plain '' and is not useful.
4178 This variable contains the command used by Configure
4179 to copy and execute a cross-compiled executable in the
4180 target host. Useful and available only during Perl build.
4181 Empty string '' if not cross-compiling.
4184 This variable contains 'true' or 'false' depending whether the
4185 nm extraction should be performed or not, according to the value
4186 of usenm and the flags on the Configure command line.
4188 sched_yield (d_pthread_y.U):
4189 This variable defines the way to yield the execution
4190 of the current thread.
4192 scriptdir (scriptdir.U):
4193 This variable holds the name of the directory in which the user wants
4194 to put publicly scripts for the package in question. It is either
4195 the same directory as for binaries, or a special one that can be
4196 mounted across different architectures, like /usr/share. Programs
4197 must be prepared to deal with ~name expansion.
4199 scriptdirexp (scriptdir.U):
4200 This variable is the same as scriptdir, but is filename expanded
4201 at configuration time, for programs not wanting to bother with it.
4204 This variable is used internally by Configure to determine the
4205 full pathname (if any) of the sed program. After Configure runs,
4206 the value is reset to a plain "sed" and is not useful.
4208 seedfunc (randfunc.U):
4209 Indicates the random number generating seed function.
4210 Values include srand48, srandom, and srand.
4212 selectminbits (selectminbits.U):
4213 This variable holds the minimum number of bits operated by select.
4214 That is, if you do select(n, ...), how many bits at least will be
4215 cleared in the masks if some activity is detected. Usually this
4216 is either n or 32*ceil(n/32), especially many little-endians do
4217 the latter. This is only useful if you have select(), naturally.
4219 selecttype (selecttype.U):
4220 This variable holds the type used for the 2nd, 3rd, and 4th
4221 arguments to select. Usually, this is 'fd_set *', if HAS_FD_SET
4222 is defined, and 'int *' otherwise. This is only useful if you
4223 have select(), naturally.
4226 This variable is defined but not used by Configure.
4227 The value is a plain '' and is not useful.
4229 setgrent_r_proto (d_setgrent_r.U):
4230 This variable encodes the prototype of setgrent_r.
4231 It is zero if d_setgrent_r is undef, and one of the
4232 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setgrent_r
4235 sethostent_r_proto (d_sethostent_r.U):
4236 This variable encodes the prototype of sethostent_r.
4237 It is zero if d_sethostent_r is undef, and one of the
4238 REENTRANT_PROTO_T_ABC macros of reentr.h if d_sethostent_r
4241 setlocale_r_proto (d_setlocale_r.U):
4242 This variable encodes the prototype of setlocale_r.
4243 It is zero if d_setlocale_r is undef, and one of the
4244 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setlocale_r
4247 setnetent_r_proto (d_setnetent_r.U):
4248 This variable encodes the prototype of setnetent_r.
4249 It is zero if d_setnetent_r is undef, and one of the
4250 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setnetent_r
4253 setprotoent_r_proto (d_setprotoent_r.U):
4254 This variable encodes the prototype of setprotoent_r.
4255 It is zero if d_setprotoent_r is undef, and one of the
4256 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setprotoent_r
4259 setpwent_r_proto (d_setpwent_r.U):
4260 This variable encodes the prototype of setpwent_r.
4261 It is zero if d_setpwent_r is undef, and one of the
4262 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setpwent_r
4265 setservent_r_proto (d_setservent_r.U):
4266 This variable encodes the prototype of setservent_r.
4267 It is zero if d_setservent_r is undef, and one of the
4268 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setservent_r
4271 sGMTIME_max (time_size.U):
4272 This variable defines the maximum value of the time_t offset that
4273 the system function gmtime () accepts
4275 sGMTIME_min (time_size.U):
4276 This variable defines the minimum value of the time_t offset that
4277 the system function gmtime () accepts
4280 This variable contains the full pathname of the shell used
4281 on this system to execute Bourne shell scripts. Usually, this will be
4282 /bin/sh, though it's possible that some systems will have /bin/ksh,
4283 /bin/pdksh, /bin/ash, /bin/bash, or even something such as
4285 This unit comes before Options.U, so you can't set sh with a '-D'
4286 option, though you can override this (and startsh)
4287 with '-O -Dsh=/bin/whatever -Dstartsh=whatever'
4290 This variable is defined but not used by Configure.
4291 The value is a plain '' and is not useful.
4293 sharpbang (spitshell.U):
4294 This variable contains the string #! if this system supports that
4297 shmattype (d_shmat.U):
4298 This symbol contains the type of pointer returned by shmat().
4299 It can be 'void *' or 'char *'.
4301 shortsize (intsize.U):
4302 This variable contains the value of the SHORTSIZE symbol which
4303 indicates to the C program how many bytes there are in a short.
4305 shrpenv (libperl.U):
4306 If the user builds a shared libperl.so, then we need to tell the
4307 'perl' executable where it will be able to find the installed libperl.so.
4308 One way to do this on some systems is to set the environment variable
4309 LD_RUN_PATH to the directory that will be the final location of the
4310 shared libperl.so. The makefile can use this with something like
4311 $shrpenv $(CC) -o perl perlmain.o $libperl $libs
4313 shrpenv="env LD_RUN_PATH=$archlibexp/CORE"
4316 See the main perl Makefile.SH for actual working usage.
4317 Alternatively, we might be able to use a command line option such
4318 as -R $archlibexp/CORE (Solaris) or -Wl,-rpath
4319 $archlibexp/CORE (Linux).
4321 shsharp (spitshell.U):
4322 This variable tells further Configure units whether your sh can
4325 sig_count (sig_name.U):
4326 This variable holds a number larger than the largest valid
4327 signal number. This is usually the same as the NSIG macro.
4329 sig_name (sig_name.U):
4330 This variable holds the signal names, space separated. The leading
4331 SIG in signal name is removed. A ZERO is prepended to the list.
4332 This is currently not used, sig_name_init is used instead.
4334 sig_name_init (sig_name.U):
4335 This variable holds the signal names, enclosed in double quotes and
4336 separated by commas, suitable for use in the SIG_NAME definition
4337 below. A "ZERO" is prepended to the list, and the list is
4338 terminated with a plain 0. The leading SIG in signal names
4339 is removed. See sig_num.
4341 sig_num (sig_name.U):
4342 This variable holds the signal numbers, space separated. A ZERO is
4343 prepended to the list (corresponding to the fake SIGZERO).
4344 Those numbers correspond to the value of the signal listed
4345 in the same place within the sig_name list.
4346 This is currently not used, sig_num_init is used instead.
4348 sig_num_init (sig_name.U):
4349 This variable holds the signal numbers, enclosed in double quotes and
4350 separated by commas, suitable for use in the SIG_NUM definition
4351 below. A "ZERO" is prepended to the list, and the list is
4352 terminated with a plain 0.
4354 sig_size (sig_name.U):
4355 This variable contains the number of elements of the sig_name
4358 signal_t (d_voidsig.U):
4359 This variable holds the type of the signal handler (void or int).
4361 sitearch (sitearch.U):
4362 This variable contains the eventual value of the SITEARCH symbol,
4363 which is the name of the private library for this package. It may
4364 have a ~ on the front. It is up to the makefile to eventually create
4365 this directory while performing installation (with ~ substitution).
4366 The standard distribution will put nothing in this directory.
4367 After perl has been installed, users may install their own local
4368 architecture-dependent modules in this directory with
4369 MakeMaker Makefile.PL
4370 or equivalent. See INSTALL for details.
4372 sitearchexp (sitearch.U):
4373 This variable is the ~name expanded version of sitearch, so that you
4374 may use it directly in Makefiles or shell scripts.
4376 sitebin (sitebin.U):
4377 This variable holds the name of the directory in which the user wants
4378 to put add-on publicly executable files for the package in question. It
4379 is most often a local directory such as /usr/local/bin. Programs using
4380 this variable must be prepared to deal with ~name substitution.
4381 The standard distribution will put nothing in this directory.
4382 After perl has been installed, users may install their own local
4383 executables in this directory with
4384 MakeMaker Makefile.PL
4385 or equivalent. See INSTALL for details.
4387 sitebinexp (sitebin.U):
4388 This is the same as the sitebin variable, but is filename expanded at
4389 configuration time, for use in your makefiles.
4391 sitehtml1dir (sitehtml1dir.U):
4392 This variable contains the name of the directory in which site-specific
4393 html source pages are to be put. It is the responsibility of the
4394 Makefile.SH to get the value of this into the proper command.
4395 You must be prepared to do the ~name expansion yourself.
4396 The standard distribution will put nothing in this directory.
4397 After perl has been installed, users may install their own local
4398 html pages in this directory with
4399 MakeMaker Makefile.PL
4400 or equivalent. See INSTALL for details.
4402 sitehtml1direxp (sitehtml1dir.U):
4403 This variable is the same as the sitehtml1dir variable, but is filename
4404 expanded at configuration time, for convenient use in makefiles.
4406 sitehtml3dir (sitehtml3dir.U):
4407 This variable contains the name of the directory in which site-specific
4408 library html source pages are to be put. It is the responsibility of the
4409 Makefile.SH to get the value of this into the proper command.
4410 You must be prepared to do the ~name expansion yourself.
4411 The standard distribution will put nothing in this directory.
4412 After perl has been installed, users may install their own local
4413 library html pages in this directory with
4414 MakeMaker Makefile.PL
4415 or equivalent. See INSTALL for details.
4417 sitehtml3direxp (sitehtml3dir.U):
4418 This variable is the same as the sitehtml3dir variable, but is filename
4419 expanded at configuration time, for convenient use in makefiles.
4421 sitelib (sitelib.U):
4422 This variable contains the eventual value of the SITELIB symbol,
4423 which is the name of the private library for this package. It may
4424 have a ~ on the front. It is up to the makefile to eventually create
4425 this directory while performing installation (with ~ substitution).
4426 The standard distribution will put nothing in this directory.
4427 After perl has been installed, users may install their own local
4428 architecture-independent modules in this directory with
4429 MakeMaker Makefile.PL
4430 or equivalent. See INSTALL for details.
4432 sitelib_stem (sitelib.U):
4433 This variable is $sitelibexp with any trailing version-specific component
4434 removed. The elements in inc_version_list (inc_version_list.U) can
4435 be tacked onto this variable to generate a list of directories to search.
4437 sitelibexp (sitelib.U):
4438 This variable is the ~name expanded version of sitelib, so that you
4439 may use it directly in Makefiles or shell scripts.
4441 siteman1dir (siteman1dir.U):
4442 This variable contains the name of the directory in which site-specific
4443 manual source pages are to be put. It is the responsibility of the
4444 Makefile.SH to get the value of this into the proper command.
4445 You must be prepared to do the ~name expansion yourself.
4446 The standard distribution will put nothing in this directory.
4447 After perl has been installed, users may install their own local
4448 man1 pages in this directory with
4449 MakeMaker Makefile.PL
4450 or equivalent. See INSTALL for details.
4452 siteman1direxp (siteman1dir.U):
4453 This variable is the same as the siteman1dir variable, but is filename
4454 expanded at configuration time, for convenient use in makefiles.
4456 siteman3dir (siteman3dir.U):
4457 This variable contains the name of the directory in which site-specific
4458 library man source pages are to be put. It is the responsibility of the
4459 Makefile.SH to get the value of this into the proper command.
4460 You must be prepared to do the ~name expansion yourself.
4461 The standard distribution will put nothing in this directory.
4462 After perl has been installed, users may install their own local
4463 man3 pages in this directory with
4464 MakeMaker Makefile.PL
4465 or equivalent. See INSTALL for details.
4467 siteman3direxp (siteman3dir.U):
4468 This variable is the same as the siteman3dir variable, but is filename
4469 expanded at configuration time, for convenient use in makefiles.
4471 siteprefix (siteprefix.U):
4472 This variable holds the full absolute path of the directory below
4473 which the user will install add-on packages.
4474 See INSTALL for usage and examples.
4476 siteprefixexp (siteprefix.U):
4477 This variable holds the full absolute path of the directory below
4478 which the user will install add-on packages. Derived from siteprefix.
4480 sitescript (sitescript.U):
4481 This variable holds the name of the directory in which the user wants
4482 to put add-on publicly executable files for the package in question. It
4483 is most often a local directory such as /usr/local/bin. Programs using
4484 this variable must be prepared to deal with ~name substitution.
4485 The standard distribution will put nothing in this directory.
4486 After perl has been installed, users may install their own local
4487 scripts in this directory with
4488 MakeMaker Makefile.PL
4489 or equivalent. See INSTALL for details.
4491 sitescriptexp (sitescript.U):
4492 This is the same as the sitescript variable, but is filename expanded at
4493 configuration time, for use in your makefiles.
4495 sizesize (sizesize.U):
4496 This variable contains the size of a sizetype in bytes.
4498 sizetype (sizetype.U):
4499 This variable defines sizetype to be something like size_t,
4500 unsigned long, or whatever type is used to declare length
4501 parameters for string functions.
4504 This variable is defined but not used by Configure.
4505 The value is a plain '' and is not useful.
4507 sLOCALTIME_max (time_size.U):
4508 This variable defines the maximum value of the time_t offset that
4509 the system function localtime () accepts
4511 sLOCALTIME_min (time_size.U):
4512 This variable defines the minimum value of the time_t offset that
4513 the system function localtime () accepts
4516 This variable is defined but not used by Configure.
4517 The value is a plain '' and is not useful.
4520 This variable holds the extension used to identify shared libraries
4521 (also known as shared objects) on the system. Usually set to 'so'.
4523 sockethdr (d_socket.U):
4524 This variable has any cpp '-I' flags needed for socket support.
4526 socketlib (d_socket.U):
4527 This variable has the names of any libraries needed for socket support.
4529 socksizetype (socksizetype.U):
4530 This variable holds the type used for the size argument
4531 for various socket calls like accept. Usual values include
4532 socklen_t, size_t, and int.
4535 This variable is used internally by Configure to determine the
4536 full pathname (if any) of the sort program. After Configure runs,
4537 the value is reset to a plain "sort" and is not useful.
4539 spackage (package.U):
4540 This variable contains the name of the package being constructed,
4541 with the first letter uppercased, i.e. suitable for starting
4544 spitshell (spitshell.U):
4545 This variable contains the command necessary to spit out a runnable
4546 shell on this system. It is either cat or a grep '-v' for # comments.
4548 sPRId64 (quadfio.U):
4549 This variable, if defined, contains the string used by stdio to
4550 format 64-bit decimal numbers (format 'd') for output.
4552 sPRIeldbl (longdblfio.U):
4553 This variable, if defined, contains the string used by stdio to
4554 format long doubles (format 'e') for output.
4556 sPRIEUldbl (longdblfio.U):
4557 This variable, if defined, contains the string used by stdio to
4558 format long doubles (format 'E') for output.
4559 The 'U' in the name is to separate this from sPRIeldbl so that even
4560 case-blind systems can see the difference.
4562 sPRIfldbl (longdblfio.U):
4563 This variable, if defined, contains the string used by stdio to
4564 format long doubles (format 'f') for output.
4566 sPRIFUldbl (longdblfio.U):
4567 This variable, if defined, contains the string used by stdio to
4568 format long doubles (format 'F') for output.
4569 The 'U' in the name is to separate this from sPRIfldbl so that even
4570 case-blind systems can see the difference.
4572 sPRIgldbl (longdblfio.U):
4573 This variable, if defined, contains the string used by stdio to
4574 format long doubles (format 'g') for output.
4576 sPRIGUldbl (longdblfio.U):
4577 This variable, if defined, contains the string used by stdio to
4578 format long doubles (format 'G') for output.
4579 The 'U' in the name is to separate this from sPRIgldbl so that even
4580 case-blind systems can see the difference.
4582 sPRIi64 (quadfio.U):
4583 This variable, if defined, contains the string used by stdio to
4584 format 64-bit decimal numbers (format 'i') for output.
4586 sPRIo64 (quadfio.U):
4587 This variable, if defined, contains the string used by stdio to
4588 format 64-bit octal numbers (format 'o') for output.
4590 sPRIu64 (quadfio.U):
4591 This variable, if defined, contains the string used by stdio to
4592 format 64-bit unsigned decimal numbers (format 'u') for output.
4594 sPRIx64 (quadfio.U):
4595 This variable, if defined, contains the string used by stdio to
4596 format 64-bit hexadecimal numbers (format 'x') for output.
4598 sPRIXU64 (quadfio.U):
4599 This variable, if defined, contains the string used by stdio to
4600 format 64-bit hExADECimAl numbers (format 'X') for output.
4601 The 'U' in the name is to separate this from sPRIx64 so that even
4602 case-blind systems can see the difference.
4604 srand48_r_proto (d_srand48_r.U):
4605 This variable encodes the prototype of srand48_r.
4606 It is zero if d_srand48_r is undef, and one of the
4607 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srand48_r
4610 srandom_r_proto (d_srandom_r.U):
4611 This variable encodes the prototype of srandom_r.
4612 It is zero if d_srandom_r is undef, and one of the
4613 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srandom_r
4617 This variable holds the (possibly relative) path of the package source.
4618 It is up to the Makefile to use this variable and set VPATH accordingly
4619 to find the sources remotely. Use $pkgsrc to have an absolute path.
4621 sSCNfldbl (longdblfio.U):
4622 This variable, if defined, contains the string used by stdio to
4623 format long doubles (format 'f') for input.
4625 ssizetype (ssizetype.U):
4626 This variable defines ssizetype to be something like ssize_t,
4627 long or int. It is used by functions that return a count
4628 of bytes or an error condition. It must be a signed type.
4629 We will pick a type such that sizeof(SSize_t) == sizeof(Size_t).
4631 startperl (startperl.U):
4632 This variable contains the string to put on the front of a perl
4633 script to make sure (hopefully) that it runs with perl and not some
4634 shell. Of course, that leading line must be followed by the classical
4636 eval 'exec perl -S $0 ${1+"$@"}'
4637 if $running_under_some_shell;
4638 to guarantee perl startup should the shell execute the script. Note
4639 that this magic incatation is not understood by csh.
4641 startsh (startsh.U):
4642 This variable contains the string to put on the front of a shell
4643 script to make sure (hopefully) that it runs with sh and not some
4646 static_ext (Extensions.U):
4647 This variable holds a list of XS extension files we want to
4648 link statically into the package. It is used by Makefile.
4650 stdchar (stdchar.U):
4651 This variable conditionally defines STDCHAR to be the type of char
4652 used in stdio.h. It has the values "unsigned char" or "char".
4654 stdio_base (d_stdstdio.U):
4655 This variable defines how, given a FILE pointer, fp, to access the
4656 _base field (or equivalent) of stdio.h's FILE structure. This will
4657 be used to define the macro FILE_base(fp).
4659 stdio_bufsiz (d_stdstdio.U):
4660 This variable defines how, given a FILE pointer, fp, to determine
4661 the number of bytes store in the I/O buffer pointer to by the
4662 _base field (or equivalent) of stdio.h's FILE structure. This will
4663 be used to define the macro FILE_bufsiz(fp).
4665 stdio_cnt (d_stdstdio.U):
4666 This variable defines how, given a FILE pointer, fp, to access the
4667 _cnt field (or equivalent) of stdio.h's FILE structure. This will
4668 be used to define the macro FILE_cnt(fp).
4670 stdio_filbuf (d_stdstdio.U):
4671 This variable defines how, given a FILE pointer, fp, to tell
4672 stdio to refill its internal buffers (?). This will
4673 be used to define the macro FILE_filbuf(fp).
4675 stdio_ptr (d_stdstdio.U):
4676 This variable defines how, given a FILE pointer, fp, to access the
4677 _ptr field (or equivalent) of stdio.h's FILE structure. This will
4678 be used to define the macro FILE_ptr(fp).
4680 stdio_stream_array (stdio_streams.U):
4681 This variable tells the name of the array holding the stdio streams.
4682 Usual values include _iob, __iob, and __sF.
4684 strerror_r_proto (d_strerror_r.U):
4685 This variable encodes the prototype of strerror_r.
4686 It is zero if d_strerror_r is undef, and one of the
4687 REENTRANT_PROTO_T_ABC macros of reentr.h if d_strerror_r
4690 strings (i_string.U):
4691 This variable holds the full path of the string header that will be
4692 used. Typically /usr/include/string.h or /usr/include/strings.h.
4695 This variable is defined but not used by Configure.
4696 The value is a plain '' and is not useful.
4698 subversion (patchlevel.U):
4699 The subversion level of this package.
4700 The value of subversion comes from the patchlevel.h file.
4701 In a version number such as 5.6.1, this is the "1".
4702 In patchlevel.h, this is referred to as "PERL_SUBVERSION".
4703 This is unique to perl.
4706 This variable holds the place where the manual is located on this
4707 system. It is not the place where the user wants to put his manual
4708 pages. Rather it is the place where Configure may look to find manual
4709 for unix commands (section 1 of the manual usually). See mansrc.
4712 This variable is defined but not used by Configure.
4713 The value is a plain '' and is not useful.
4716 This variable is defined but not used by Configure.
4717 The value is a plain '' and is not useful.
4719 targetarch (Cross.U):
4720 If cross-compiling, this variable contains the target architecture.
4721 If not, this will be empty.
4724 This variable is defined but not used by Configure.
4725 The value is a plain '' and is not useful.
4728 This variable is defined but not used by Configure.
4729 The value is a plain '' and is not useful.
4732 This variable is used internally by Configure to determine the
4733 full pathname (if any) of the test program. After Configure runs,
4734 the value is reset to a plain "test" and is not useful.
4736 timeincl (i_time.U):
4737 This variable holds the full path of the included time header(s).
4739 timetype (d_time.U):
4740 This variable holds the type returned by time(). It can be long,
4741 or time_t on BSD sites (in which case <sys/types.h> should be
4742 included). Anyway, the type Time_t should be used.
4744 tmpnam_r_proto (d_tmpnam_r.U):
4745 This variable encodes the prototype of tmpnam_r.
4746 It is zero if d_tmpnam_r is undef, and one of the
4747 REENTRANT_PROTO_T_ABC macros of reentr.h if d_tmpnam_r
4751 This variable contains the command used by Configure
4752 to copy to from the target host. Useful and available
4753 only during Perl build.
4754 The string ':' if not cross-compiling.
4757 This variable is used internally by Configure to determine the
4758 full pathname (if any) of the touch program. After Configure runs,
4759 the value is reset to a plain "touch" and is not useful.
4762 This variable is used internally by Configure to determine the
4763 full pathname (if any) of the tr program. After Configure runs,
4764 the value is reset to a plain "tr" and is not useful.
4767 This variable contains the value to be passed to the tr(1)
4768 command to transliterate a newline. Typical values are
4769 '\012' and '\n'. This is needed for EBCDIC systems where
4770 newline is not necessarily '\012'.
4773 This variable is defined but not used by Configure.
4774 The value is a plain '' and is not useful.
4776 ttyname_r_proto (d_ttyname_r.U):
4777 This variable encodes the prototype of ttyname_r.
4778 It is zero if d_ttyname_r is undef, and one of the
4779 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ttyname_r
4783 This variable is the size of an U16 in bytes.
4786 This variable contains the C type used for Perl's U16.
4789 This variable is the size of an U32 in bytes.
4792 This variable contains the C type used for Perl's U32.
4795 This variable is the size of an U64 in bytes.
4798 This variable contains the C type used for Perl's U64.
4801 This variable is the size of an U8 in bytes.
4804 This variable contains the C type used for Perl's U8.
4807 This variable contains the format string used for printing a Uid_t.
4809 uidsign (uidsign.U):
4810 This variable contains the signedness of a uidtype.
4811 1 for unsigned, -1 for signed.
4813 uidsize (uidsize.U):
4814 This variable contains the size of a uidtype in bytes.
4816 uidtype (uidtype.U):
4817 This variable defines Uid_t to be something like uid_t, int,
4818 ushort, or whatever type is used to declare user ids in the kernel.
4821 This variable is used internally by Configure to determine the
4822 full pathname (if any) of the uname program. After Configure runs,
4823 the value is reset to a plain "uname" and is not useful.
4826 This variable is used internally by Configure to determine the
4827 full pathname (if any) of the uniq program. After Configure runs,
4828 the value is reset to a plain "uniq" and is not useful.
4830 uquadtype (quadtype.U):
4831 This variable defines Uquad_t to be something like unsigned long,
4832 unsigned int, unsigned long long, uint64_t, or whatever type is
4833 used for 64-bit integers.
4835 use5005threads (usethreads.U):
4836 This variable conditionally defines the USE_5005THREADS symbol,
4837 and indicates that Perl should be built to use the 5.005-based
4838 threading implementation. Only valid up to 5.8.x.
4840 use64bitall (use64bits.U):
4841 This variable conditionally defines the USE_64_BIT_ALL symbol,
4842 and indicates that 64-bit integer types should be used
4843 when available. The maximal possible
4844 64-bitness is employed: LP64 or ILP64, meaning that you will
4845 be able to use more than 2 gigabytes of memory. This mode is
4846 even more binary incompatible than USE_64_BIT_INT. You may not
4847 be able to run the resulting executable in a 32-bit CPU at all or
4848 you may need at least to reboot your OS to 64-bit mode.
4850 use64bitint (use64bits.U):
4851 This variable conditionally defines the USE_64_BIT_INT symbol,
4852 and indicates that 64-bit integer types should be used
4853 when available. The minimal possible 64-bitness
4854 is employed, just enough to get 64-bit integers into Perl.
4855 This may mean using for example "long longs", while your memory
4856 may still be limited to 2 gigabytes.
4858 usecrosscompile (Cross.U):
4859 This variable conditionally defines the USE_CROSS_COMPILE symbol,
4860 and indicates that Perl has been cross-compiled.
4863 This variable indicates if the system supports dynamic
4864 loading of some sort. See also dlsrc and dlobj.
4866 usedtrace (usedtrace.U):
4867 This variable indicates whether we are compiling with dtrace
4868 support. See also dtrace.
4870 usefaststdio (usefaststdio.U):
4871 This variable conditionally defines the USE_FAST_STDIO symbol,
4872 and indicates that Perl should be built to use 'fast stdio'.
4873 Defaults to define in Perls 5.8 and earlier, to undef later.
4875 useithreads (usethreads.U):
4876 This variable conditionally defines the USE_ITHREADS symbol,
4877 and indicates that Perl should be built to use the interpreter-based
4878 threading implementation.
4880 uselargefiles (uselfs.U):
4881 This variable conditionally defines the USE_LARGE_FILES symbol,
4882 and indicates that large file interfaces should be used when
4885 uselongdouble (uselongdbl.U):
4886 This variable conditionally defines the USE_LONG_DOUBLE symbol,
4887 and indicates that long doubles should be used when available.
4889 usemallocwrap (mallocsrc.U):
4890 This variable contains y if we are wrapping malloc to prevent
4891 integer overflow during size calculations.
4893 usemorebits (usemorebits.U):
4894 This variable conditionally defines the USE_MORE_BITS symbol,
4895 and indicates that explicit 64-bit interfaces and long doubles
4896 should be used when available.
4898 usemultiplicity (usemultiplicity.U):
4899 This variable conditionally defines the MULTIPLICITY symbol,
4900 and indicates that Perl should be built to use multiplicity.
4902 usemymalloc (mallocsrc.U):
4903 This variable contains y if the malloc that comes with this package
4904 is desired over the system's version of malloc. People often include
4905 special versions of malloc for effiency, but such versions are often
4906 less portable. See also mallocsrc and mallocobj.
4907 If this is 'y', then -lmalloc is removed from $libs.
4910 This variable contains 'true' or 'false' depending whether the
4911 nm extraction is wanted or not.
4913 useopcode (Extensions.U):
4914 This variable holds either 'true' or 'false' to indicate
4915 whether the Opcode extension should be used. The sole
4916 use for this currently is to allow an easy mechanism
4917 for users to skip the Opcode extension from the Configure
4920 useperlio (useperlio.U):
4921 This variable conditionally defines the USE_PERLIO symbol,
4922 and indicates that the PerlIO abstraction should be
4925 useposix (Extensions.U):
4926 This variable holds either 'true' or 'false' to indicate
4927 whether the POSIX extension should be used. The sole
4928 use for this currently is to allow an easy mechanism
4929 for hints files to indicate that POSIX will not compile
4930 on a particular system.
4932 usereentrant (usethreads.U):
4933 This variable conditionally defines the USE_REENTRANT_API symbol,
4934 which indicates that the thread code may try to use the various
4935 _r versions of library functions. This is only potentially
4936 meaningful if usethreads is set and is very experimental, it is
4937 not even prompted for.
4939 userelocatableinc (bin.U):
4940 This variable is set to true to indicate that perl should relocate
4941 @INC entries at runtime based on the path to the perl binary.
4942 Any @INC paths starting ".../" are relocated relative to the directory
4943 containing the perl binary, and a logical cleanup of the path is then
4944 made around the join point (removing "dir/../" pairs)
4947 This variable is set to true when the user agrees to use sfio.
4948 It is set to false when sfio is not available or when the user
4949 explicitely requests not to use sfio. It is here primarily so
4950 that command-line settings can override the auto-detection of
4951 d_sfio without running into a "WHOA THERE".
4953 useshrplib (libperl.U):
4954 This variable is set to 'true' if the user wishes
4955 to build a shared libperl, and 'false' otherwise.
4957 usesitecustomize (d_sitecustomize.U):
4958 This variable is set to true when the user requires a mechanism that
4959 allows the sysadmin to add entries to @INC at runtime. This variable
4960 being set, makes perl run '$sitelib/sitecustomize.pl' at startup.
4962 usesocks (usesocks.U):
4963 This variable conditionally defines the USE_SOCKS symbol,
4964 and indicates that Perl should be built to use SOCKS.
4966 usethreads (usethreads.U):
4967 This variable conditionally defines the USE_THREADS symbol,
4968 and indicates that Perl should be built to use threads.
4970 usevendorprefix (vendorprefix.U):
4971 This variable tells whether the vendorprefix
4972 and consequently other vendor* paths are in use.
4974 usevfork (d_vfork.U):
4975 This variable is set to true when the user accepts to use vfork.
4976 It is set to false when no vfork is available or when the user
4977 explicitely requests not to use vfork.
4980 This variable holds the path of the include files, which is
4981 usually /usr/include. It is mainly used by other Configure units.
4984 This variable is defined but not used by Configure.
4985 The value is a plain '' and is not useful.
4987 uvoformat (perlxvf.U):
4988 This variable contains the format string used for printing
4989 a Perl UV as an unsigned octal integer.
4992 This variable is the size of a UV in bytes.
4995 This variable contains the C type used for Perl's UV.
4997 uvuformat (perlxvf.U):
4998 This variable contains the format string used for printing
4999 a Perl UV as an unsigned decimal integer.
5001 uvxformat (perlxvf.U):
5002 This variable contains the format string used for printing
5003 a Perl UV as an unsigned hexadecimal integer in lowercase abcdef.
5005 uvXUformat (perlxvf.U):
5006 This variable contains the format string used for printing
5007 a Perl UV as an unsigned hexadecimal integer in uppercase ABCDEF.
5009 vendorarch (vendorarch.U):
5010 This variable contains the value of the PERL_VENDORARCH symbol.
5011 It may have a ~ on the front.
5012 The standard distribution will put nothing in this directory.
5013 Vendors who distribute perl may wish to place their own
5014 architecture-dependent modules and extensions in this directory with
5015 MakeMaker Makefile.PL INSTALLDIRS=vendor
5016 or equivalent. See INSTALL for details.
5018 vendorarchexp (vendorarch.U):
5019 This variable is the ~name expanded version of vendorarch, so that you
5020 may use it directly in Makefiles or shell scripts.
5022 vendorbin (vendorbin.U):
5023 This variable contains the eventual value of the VENDORBIN symbol.
5024 It may have a ~ on the front.
5025 The standard distribution will put nothing in this directory.
5026 Vendors who distribute perl may wish to place additional
5027 binaries in this directory with
5028 MakeMaker Makefile.PL INSTALLDIRS=vendor
5029 or equivalent. See INSTALL for details.
5031 vendorbinexp (vendorbin.U):
5032 This variable is the ~name expanded version of vendorbin, so that you
5033 may use it directly in Makefiles or shell scripts.
5035 vendorhtml1dir (vendorhtml1dir.U):
5036 This variable contains the name of the directory for html
5037 pages. It may have a ~ on the front.
5038 The standard distribution will put nothing in this directory.
5039 Vendors who distribute perl may wish to place their own
5040 html pages in this directory with
5041 MakeMaker Makefile.PL INSTALLDIRS=vendor
5042 or equivalent. See INSTALL for details.
5044 vendorhtml1direxp (vendorhtml1dir.U):
5045 This variable is the ~name expanded version of vendorhtml1dir, so that you
5046 may use it directly in Makefiles or shell scripts.
5048 vendorhtml3dir (vendorhtml3dir.U):
5049 This variable contains the name of the directory for html
5050 library pages. It may have a ~ on the front.
5051 The standard distribution will put nothing in this directory.
5052 Vendors who distribute perl may wish to place their own
5053 html pages for modules and extensions in this directory with
5054 MakeMaker Makefile.PL INSTALLDIRS=vendor
5055 or equivalent. See INSTALL for details.
5057 vendorhtml3direxp (vendorhtml3dir.U):
5058 This variable is the ~name expanded version of vendorhtml3dir, so that you
5059 may use it directly in Makefiles or shell scripts.
5061 vendorlib (vendorlib.U):
5062 This variable contains the eventual value of the VENDORLIB symbol,
5063 which is the name of the private library for this package.
5064 The standard distribution will put nothing in this directory.
5065 Vendors who distribute perl may wish to place their own
5066 modules in this directory with
5067 MakeMaker Makefile.PL INSTALLDIRS=vendor
5068 or equivalent. See INSTALL for details.
5070 vendorlib_stem (vendorlib.U):
5071 This variable is $vendorlibexp with any trailing version-specific component
5072 removed. The elements in inc_version_list (inc_version_list.U) can
5073 be tacked onto this variable to generate a list of directories to search.
5075 vendorlibexp (vendorlib.U):
5076 This variable is the ~name expanded version of vendorlib, so that you
5077 may use it directly in Makefiles or shell scripts.
5079 vendorman1dir (vendorman1dir.U):
5080 This variable contains the name of the directory for man1
5081 pages. It may have a ~ on the front.
5082 The standard distribution will put nothing in this directory.
5083 Vendors who distribute perl may wish to place their own
5084 man1 pages in this directory with
5085 MakeMaker Makefile.PL INSTALLDIRS=vendor
5086 or equivalent. See INSTALL for details.
5088 vendorman1direxp (vendorman1dir.U):
5089 This variable is the ~name expanded version of vendorman1dir, so that you
5090 may use it directly in Makefiles or shell scripts.
5092 vendorman3dir (vendorman3dir.U):
5093 This variable contains the name of the directory for man3
5094 pages. It may have a ~ on the front.
5095 The standard distribution will put nothing in this directory.
5096 Vendors who distribute perl may wish to place their own
5097 man3 pages in this directory with
5098 MakeMaker Makefile.PL INSTALLDIRS=vendor
5099 or equivalent. See INSTALL for details.
5101 vendorman3direxp (vendorman3dir.U):
5102 This variable is the ~name expanded version of vendorman3dir, so that you
5103 may use it directly in Makefiles or shell scripts.
5105 vendorprefix (vendorprefix.U):
5106 This variable holds the full absolute path of the directory below
5107 which the vendor will install add-on packages.
5108 See INSTALL for usage and examples.
5110 vendorprefixexp (vendorprefix.U):
5111 This variable holds the full absolute path of the directory below
5112 which the vendor will install add-on packages. Derived from vendorprefix.
5114 vendorscript (vendorscript.U):
5115 This variable contains the eventual value of the VENDORSCRIPT symbol.
5116 It may have a ~ on the front.
5117 The standard distribution will put nothing in this directory.
5118 Vendors who distribute perl may wish to place additional
5119 executable scripts in this directory with
5120 MakeMaker Makefile.PL INSTALLDIRS=vendor
5121 or equivalent. See INSTALL for details.
5123 vendorscriptexp (vendorscript.U):
5124 This variable is the ~name expanded version of vendorscript, so that you
5125 may use it directly in Makefiles or shell scripts.
5127 version (patchlevel.U):
5128 The full version number of this package, such as 5.6.1 (or 5_6_1).
5129 This combines revision, patchlevel, and subversion to get the
5130 full version number, including any possible subversions.
5131 This is suitable for use as a directory name, and hence is
5132 filesystem dependent.
5134 version_patchlevel_string (patchlevel.U):
5135 This is a string combining version, subversion and
5136 perl_patchlevel (if perl_patchlevel is non-zero).
5137 It is typically something like
5138 'version 7 subversion 1' or
5139 'version 7 subversion 1 patchlevel 11224'
5140 It is computed here to avoid duplication of code in myconfig.SH
5143 versiononly (versiononly.U):
5144 If set, this symbol indicates that only the version-specific
5145 components of a perl installation should be installed.
5146 This may be useful for making a test installation of a new
5147 version without disturbing the existing installation.
5148 Setting versiononly is equivalent to setting installperl's -v option.
5149 In particular, the non-versioned scripts and programs such as
5150 a2p, c2ph, h2xs, pod2*, and perldoc are not installed
5151 (see INSTALL for a more complete list). Nor are the man
5153 Usually, this is undef.
5156 This variable is defined but not used by Configure.
5157 The value is a plain '' and is not useful.
5159 voidflags (voidflags.U):
5160 This variable contains the eventual value of the VOIDFLAGS symbol,
5161 which indicates how much support of the void type is given by this
5162 compiler. See VOIDFLAGS for more info.
5165 This variable holds extra path (space-separated) used to find
5166 libraries on this platform, for example CPU-specific libraries
5167 (on multi-CPU platforms) may be listed here.
5170 This variable holds the name of the compiler compiler we
5171 want to use in the Makefile. It can be yacc, byacc, or bison -y.
5174 This variable contains any additional yacc flags desired by the
5175 user. It is up to the Makefile to use this.
5178 This variable is defined but not used by Configure.
5179 The value is a plain '' and is not useful.
5182 This variable is used internally by Configure to determine the
5183 full pathname (if any) of the zip program. After Configure runs,
5184 the value is reset to a plain "zip" and is not useful.