2 !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
3 This file is built by metaconfig.
5 This file contains a description of all the shell variables whose value is
6 determined by the Configure script. Variables intended for use in C
7 programs (e.g. I_UNISTD) are already described in config_h.SH. [`configpm'
8 generates pod documentation for Config.pm from this file--please try to keep
9 the formatting regular.]
12 This variable defines the extension used for ordinary library files.
13 For unix, it is '.a'. The '.' is included. Other possible
14 values include '.lib'.
17 This variable defines the extension used for executable files.
18 DJGPP, Cygwin and OS/2 use '.exe'. Stratus VOS uses '.pm'.
19 On operating systems which do not require a specific extension
20 for executable files, this variable is empty.
23 This variable defines the extension used for object files.
24 For unix, it is '.o'. The '.' is included. Other possible
25 values include '.obj'.
28 This variable is set to 'true' if AFS (Andrew File System) is used
29 on the system, 'false' otherwise. It is possible to override this
30 with a hint value or command line option, but you'd better know
34 This variable is by default set to '/afs'. In the unlikely case
35 this is not the correct root, it is possible to override this with
36 a hint value or command line option. This will be used in subsequent
37 tests for AFSness in the configure and test process.
39 alignbytes (alignbytes.U):
40 This variable holds the number of bytes required to align a
41 double-- or a long double when applicable. Usual values are
42 2, 4 and 8. The default is eight, for safety.
44 ansi2knr (ansi2knr.U):
45 This variable is set if the user needs to run ansi2knr.
46 Currently, this is not supported, so we just abort.
48 aphostname (d_gethname.U):
49 This variable contains the command which can be used to compute the
50 host name. The command is fully qualified by its absolute path, to make
51 it safe when used by a process with super-user privileges.
53 api_revision (patchlevel.U):
54 The three variables, api_revision, api_version, and
55 api_subversion, specify the version of the oldest perl binary
56 compatible with the present perl. In a full version string
57 such as '5.6.1', api_revision is the '5'.
58 Prior to 5.5.640, the format was a floating point number,
61 perl.c:incpush() and lib/lib.pm will automatically search in
62 $sitelib/.. for older directories back to the limit specified
63 by these api_ variables. This is only useful if you have a
64 perl library directory tree structured like the default one.
65 See INSTALL for how this works. The versioned site_perl
66 directory was introduced in 5.005, so that is the lowest
67 possible value. The version list appropriate for the current
68 system is determined in inc_version_list.U.
70 XXX To do: Since compatibility can depend on compile time
71 options (such as bincompat, longlong, etc.) it should
72 (perhaps) be set by Configure, but currently it isn't.
73 Currently, we read a hard-wired value from patchlevel.h.
74 Perhaps what we ought to do is take the hard-wired value from
75 patchlevel.h but then modify it if the current Configure
76 options warrant. patchlevel.h then would use an #ifdef guard.
78 api_subversion (patchlevel.U):
79 The three variables, api_revision, api_version, and
80 api_subversion, specify the version of the oldest perl binary
81 compatible with the present perl. In a full version string
82 such as '5.6.1', api_subversion is the '1'. See api_revision for
85 api_version (patchlevel.U):
86 The three variables, api_revision, api_version, and
87 api_subversion, specify the version of the oldest perl binary
88 compatible with the present perl. In a full version string
89 such as '5.6.1', api_version is the '6'. See api_revision for
90 full details. As a special case, 5.5.0 is rendered in the
91 old-style as 5.005. (In the 5.005_0x maintenance series,
92 this was the only versioned directory in $sitelib.)
94 api_versionstring (patchlevel.U):
95 This variable combines api_revision, api_version, and
96 api_subversion in a format such as 5.6.1 (or 5_6_1) suitable
97 for use as a directory name. This is filesystem dependent.
100 This variable is used internally by Configure to determine the
101 full pathname (if any) of the ar program. After Configure runs,
102 the value is reset to a plain "ar" and is not useful.
105 This variable holds the name of the directory in which the user wants
106 to put architecture-dependent public library files for $package.
107 It is most often a local directory such as /usr/local/lib.
108 Programs using this variable must be prepared to deal
109 with filename expansion.
111 archlibexp (archlib.U):
112 This variable is the same as the archlib variable, but is
113 filename expanded at configuration time, for convenient use.
115 archname (archname.U):
116 This variable is a short name to characterize the current
117 architecture. It is used mainly to construct the default archlib.
119 archname64 (use64bits.U):
120 This variable is used for the 64-bitness part of $archname.
123 This variable defines any additional objects that must be linked
124 in with the program on this architecture. On unix, it is usually
125 empty. It is typically used to include emulations of unix calls
126 or other facilities. For perl on OS/2, for example, this would
129 asctime_r_proto (d_asctime_r.U):
130 This variable encodes the prototype of asctime_r.
131 It is zero if d_asctime_r is undef, and one of the
132 REENTRANT_PROTO_T_ABC macros of reentr.h if d_asctime_r
136 This variable is used internally by Configure to determine the
137 full pathname (if any) of the awk program. After Configure runs,
138 the value is reset to a plain "awk" and is not useful.
141 The base revision level of this package, from the .package file.
144 This variable is defined but not used by Configure.
145 The value is the empty string and is not useful.
148 This variable holds the name of the directory in which the user wants
149 to put publicly executable images for the package in question. It
150 is most often a local directory such as /usr/local/bin. Programs using
151 this variable must be prepared to deal with ~name substitution.
154 This 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 the empty string 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 the empty string 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 the empty string 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 the empty string 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_deprecated (d_attribut.U):
410 This variable conditionally defines HASATTRIBUTE_DEPRECATED, which
411 indicates that GCC can handle the attribute for marking deprecated
414 d_attribute_format (d_attribut.U):
415 This variable conditionally defines HASATTRIBUTE_FORMAT, which
416 indicates the C compiler can check for printf-like formats.
418 d_attribute_malloc (d_attribut.U):
419 This variable conditionally defines HASATTRIBUTE_MALLOC, which
420 indicates the C compiler can understand functions as having
421 malloc-like semantics.
423 d_attribute_nonnull (d_attribut.U):
424 This variable conditionally defines HASATTRIBUTE_NONNULL, which
425 indicates that the C compiler can know that certain arguments
426 must not be NULL, and will check accordingly at compile time.
428 d_attribute_noreturn (d_attribut.U):
429 This variable conditionally defines HASATTRIBUTE_NORETURN, which
430 indicates that the C compiler can know that certain functions
431 are guaranteed never to return.
433 d_attribute_pure (d_attribut.U):
434 This variable conditionally defines HASATTRIBUTE_PURE, which
435 indicates that the C compiler can know that certain functions
436 are "pure" functions, meaning that they have no side effects, and
437 only rely on function input and/or global data for their results.
439 d_attribute_unused (d_attribut.U):
440 This variable conditionally defines HASATTRIBUTE_UNUSED, which
441 indicates that the C compiler can know that certain variables
442 and arguments may not always be used, and to not throw warnings
443 if they don't get used.
445 d_attribute_warn_unused_result (d_attribut.U):
446 This variable conditionally defines
447 HASATTRIBUTE_WARN_UNUSED_RESULT, which indicates that the C
448 compiler can know that certain functions have a return values
449 that must not be ignored, such as malloc() or open().
452 This variable conditionally defines the HAS_BCMP symbol if
453 the bcmp() routine is available to compare strings.
456 This variable conditionally defines the HAS_BCOPY symbol if
457 the bcopy() routine is available to copy strings.
460 This symbol conditionally defines the symbol BSD when running on a
463 d_bsdgetpgrp (d_getpgrp.U):
464 This variable conditionally defines USE_BSD_GETPGRP if
465 getpgrp needs one arguments whereas USG one needs none.
467 d_bsdsetpgrp (d_setpgrp.U):
468 This variable conditionally defines USE_BSD_SETPGRP if
469 setpgrp needs two arguments whereas USG one needs none.
470 See also d_setpgid for a POSIX interface.
472 d_builtin_choose_expr (d_builtin.U):
473 This conditionally defines HAS_BUILTIN_CHOOSE_EXPR, which
474 indicates that the compiler supports __builtin_choose_expr(x,y,z).
475 This built-in function is analogous to the "x?y:z" operator in C,
476 except that the expression returned has its type unaltered by
477 promotion rules. Also, the built-in function does not evaluate
478 the expression that was not chosen.
480 d_builtin_expect (d_builtin.U):
481 This conditionally defines HAS_BUILTIN_EXPECT, which indicates
482 that the compiler supports __builtin_expect(exp,c). You may use
483 __builtin_expect to provide the compiler with branch prediction
487 This variable conditionally defines the HAS_BZERO symbol if
488 the bzero() routine is available to set memory to 0.
490 d_c99_variadic_macros (d_c99_variadic.U):
491 This variable conditionally defines the HAS_C99_VARIADIC_MACROS
492 symbol, which indicates to the C program that C99 variadic macros
495 d_casti32 (d_casti32.U):
496 This variable conditionally defines CASTI32, which indicates
497 whether the C compiler can cast large floats to 32-bit ints.
499 d_castneg (d_castneg.U):
500 This variable conditionally defines CASTNEG, which indicates
501 wether the C compiler can cast negative float to unsigned.
503 d_charvspr (d_vprintf.U):
504 This variable conditionally defines CHARVSPRINTF if this system
505 has vsprintf returning type (char*). The trend seems to be to
506 declare it as "int vsprintf()".
509 This variable conditionally defines the HAS_CHOWN symbol, which
510 indicates to the C program that the chown() routine is available.
512 d_chroot (d_chroot.U):
513 This variable conditionally defines the HAS_CHROOT symbol, which
514 indicates to the C program that the chroot() routine is available.
516 d_chsize (d_chsize.U):
517 This variable conditionally defines the CHSIZE symbol, which
518 indicates to the C program that the chsize() routine is available
519 to truncate files. You might need a -lx to get this routine.
522 This variable conditionally defines the HAS_CLASS symbol, which
523 indicates to the C program that the class() routine is available.
525 d_clearenv (d_clearenv.U):
526 This variable conditionally defines the HAS_CLEARENV symbol, which
527 indicates to the C program that the clearenv () routine is available.
529 d_closedir (d_closedir.U):
530 This variable conditionally defines HAS_CLOSEDIR if closedir() is
533 d_cmsghdr_s (d_cmsghdr_s.U):
534 This variable conditionally defines the HAS_STRUCT_CMSGHDR symbol,
535 which indicates that the struct cmsghdr is supported.
538 This variable conditionally defines the HASCONST symbol, which
539 indicates to the C program that this C compiler knows about the
542 d_copysignl (d_copysignl.U):
543 This variable conditionally defines the HAS_COPYSIGNL symbol, which
544 indicates to the C program that the copysignl() routine is available.
545 If aintl is also present we can emulate modfl.
547 d_cplusplus (d_cplusplus.U):
548 This variable conditionally defines the USE_CPLUSPLUS symbol, which
549 indicates that a C++ compiler was used to compiled Perl and will be
550 used to compile extensions.
553 This variable conditionally defines the CRYPT symbol, which
554 indicates to the C program that the crypt() routine is available
555 to encrypt passwords and the like.
557 d_crypt_r (d_crypt_r.U):
558 This variable conditionally defines the HAS_CRYPT_R symbol,
559 which indicates to the C program that the crypt_r()
560 routine is available.
563 This variable conditionally defines the CSH symbol, which
564 indicates to the C program that the C-shell exists.
566 d_ctermid (d_ctermid.U):
567 This variable conditionally defines CTERMID if ctermid() is
568 available to generate filename for terminal.
570 d_ctermid_r (d_ctermid_r.U):
571 This variable conditionally defines the HAS_CTERMID_R symbol,
572 which indicates to the C program that the ctermid_r()
573 routine is available.
575 d_ctime64 (d_timefuncs64.U):
576 This variable conditionally defines the HAS_CTIME64 symbol, which
577 indicates to the C program that the ctime64 () routine is available.
579 d_ctime_r (d_ctime_r.U):
580 This variable conditionally defines the HAS_CTIME_R symbol,
581 which indicates to the C program that the ctime_r()
582 routine is available.
584 d_cuserid (d_cuserid.U):
585 This variable conditionally defines the HAS_CUSERID symbol, which
586 indicates to the C program that the cuserid() routine is available
587 to get character login names.
589 d_dbl_dig (d_dbl_dig.U):
590 This variable conditionally defines d_dbl_dig if this system's
591 header files provide DBL_DIG, which is the number of significant
592 digits in a double precision number.
594 d_dbminitproto (d_dbminitproto.U):
595 This variable conditionally defines the HAS_DBMINIT_PROTO symbol,
596 which indicates to the C program that the system provides
597 a prototype for the dbminit() function. Otherwise, it is
598 up to the program to supply one.
600 d_difftime (d_difftime.U):
601 This variable conditionally defines the HAS_DIFFTIME symbol, which
602 indicates to the C program that the difftime() routine is available.
604 d_difftime64 (d_timefuncs64.U):
605 This variable conditionally defines the HAS_DIFFTIME64 symbol, which
606 indicates to the C program that the difftime64 () routine is available.
608 d_dir_dd_fd (d_dir_dd_fd.U):
609 This variable conditionally defines the HAS_DIR_DD_FD symbol, which
610 indicates that the DIR directory stream type contains a member
611 variable called dd_fd.
614 This variable conditionally defines the HAS_DIRFD constant,
615 which indicates to the C program that dirfd() is available
616 to return the file descriptor of a directory stream.
618 d_dirnamlen (i_dirent.U):
619 This variable conditionally defines DIRNAMLEN, which indicates
620 to the C program that the length of directory entry names is
621 provided by a d_namelen field.
623 d_dlerror (d_dlerror.U):
624 This variable conditionally defines the HAS_DLERROR symbol, which
625 indicates to the C program that the dlerror() routine is available.
627 d_dlopen (d_dlopen.U):
628 This variable conditionally defines the HAS_DLOPEN symbol, which
629 indicates to the C program that the dlopen() routine is available.
631 d_dlsymun (d_dlsymun.U):
632 This variable conditionally defines DLSYM_NEEDS_UNDERSCORE, which
633 indicates that we need to prepend an underscore to the symbol
634 name before calling dlsym().
636 d_dosuid (d_dosuid.U):
637 This variable conditionally defines the symbol DOSUID, which
638 tells the C program that it should insert setuid emulation code
639 on hosts which have setuid #! scripts disabled.
641 d_drand48_r (d_drand48_r.U):
642 This variable conditionally defines the HAS_DRAND48_R symbol,
643 which indicates to the C program that the drand48_r()
644 routine is available.
646 d_drand48proto (d_drand48proto.U):
647 This variable conditionally defines the HAS_DRAND48_PROTO symbol,
648 which indicates to the C program that the system provides
649 a prototype for the drand48() function. Otherwise, it is
650 up to the program to supply one.
653 This variable conditionally defines HAS_DUP2 if dup2() is
654 available to duplicate file descriptors.
656 d_eaccess (d_eaccess.U):
657 This variable conditionally defines the HAS_EACCESS symbol, which
658 indicates to the C program that the eaccess() routine is available.
660 d_endgrent (d_endgrent.U):
661 This variable conditionally defines the HAS_ENDGRENT symbol, which
662 indicates to the C program that the endgrent() routine is available
663 for sequential access of the group database.
665 d_endgrent_r (d_endgrent_r.U):
666 This variable conditionally defines the HAS_ENDGRENT_R symbol,
667 which indicates to the C program that the endgrent_r()
668 routine is available.
670 d_endhent (d_endhent.U):
671 This variable conditionally defines HAS_ENDHOSTENT if endhostent() is
672 available to close whatever was being used for host queries.
674 d_endhostent_r (d_endhostent_r.U):
675 This variable conditionally defines the HAS_ENDHOSTENT_R symbol,
676 which indicates to the C program that the endhostent_r()
677 routine is available.
679 d_endnent (d_endnent.U):
680 This variable conditionally defines HAS_ENDNETENT if endnetent() is
681 available to close whatever was being used for network queries.
683 d_endnetent_r (d_endnetent_r.U):
684 This variable conditionally defines the HAS_ENDNETENT_R symbol,
685 which indicates to the C program that the endnetent_r()
686 routine is available.
688 d_endpent (d_endpent.U):
689 This variable conditionally defines HAS_ENDPROTOENT if endprotoent() is
690 available to close whatever was being used for protocol queries.
692 d_endprotoent_r (d_endprotoent_r.U):
693 This variable conditionally defines the HAS_ENDPROTOENT_R symbol,
694 which indicates to the C program that the endprotoent_r()
695 routine is available.
697 d_endpwent (d_endpwent.U):
698 This variable conditionally defines the HAS_ENDPWENT symbol, which
699 indicates to the C program that the endpwent() routine is available
700 for sequential access of the passwd database.
702 d_endpwent_r (d_endpwent_r.U):
703 This variable conditionally defines the HAS_ENDPWENT_R symbol,
704 which indicates to the C program that the endpwent_r()
705 routine is available.
707 d_endsent (d_endsent.U):
708 This variable conditionally defines HAS_ENDSERVENT if endservent() is
709 available to close whatever was being used for service queries.
711 d_endservent_r (d_endservent_r.U):
712 This variable conditionally defines the HAS_ENDSERVENT_R symbol,
713 which indicates to the C program that the endservent_r()
714 routine is available.
716 d_eofnblk (nblock_io.U):
717 This variable conditionally defines EOF_NONBLOCK if EOF can be seen
718 when reading from a non-blocking I/O source.
721 This variable conditionally defines the symbols EUNICE and VAX, which
722 alerts the C program that it must deal with ideosyncracies of VMS.
724 d_faststdio (d_faststdio.U):
725 This variable conditionally defines the HAS_FAST_STDIO symbol,
726 which indicates to the C program that the "fast stdio" is available
727 to manipulate the stdio buffers directly.
729 d_fchdir (d_fchdir.U):
730 This variable conditionally defines the HAS_FCHDIR symbol, which
731 indicates to the C program that the fchdir() routine is available.
733 d_fchmod (d_fchmod.U):
734 This variable conditionally defines the HAS_FCHMOD symbol, which
735 indicates to the C program that the fchmod() routine is available
736 to change mode of opened files.
738 d_fchown (d_fchown.U):
739 This variable conditionally defines the HAS_FCHOWN symbol, which
740 indicates to the C program that the fchown() routine is available
741 to change ownership of opened files.
744 This variable conditionally defines the HAS_FCNTL symbol, and indicates
745 whether the fcntl() function exists
747 d_fcntl_can_lock (d_fcntl_can_lock.U):
748 This variable conditionally defines the FCNTL_CAN_LOCK symbol
749 and indicates whether file locking with fcntl() works.
751 d_fd_macros (d_fd_set.U):
752 This variable contains the eventual value of the HAS_FD_MACROS symbol,
753 which indicates if your C compiler knows about the macros which
754 manipulate an fd_set.
756 d_fd_set (d_fd_set.U):
757 This variable contains the eventual value of the HAS_FD_SET symbol,
758 which indicates if your C compiler knows about the fd_set typedef.
760 d_fds_bits (d_fd_set.U):
761 This variable contains the eventual value of the HAS_FDS_BITS symbol,
762 which indicates if your fd_set typedef contains the fds_bits member.
763 If you have an fd_set typedef, but the dweebs who installed it did
764 a half-fast job and neglected to provide the macros to manipulate
765 an fd_set, HAS_FDS_BITS will let us know how to fix the gaffe.
767 d_fgetpos (d_fgetpos.U):
768 This variable conditionally defines HAS_FGETPOS if fgetpos() is
769 available to get the file position indicator.
771 d_finite (d_finite.U):
772 This variable conditionally defines the HAS_FINITE symbol, which
773 indicates to the C program that the finite() routine is available.
775 d_finitel (d_finitel.U):
776 This variable conditionally defines the HAS_FINITEL symbol, which
777 indicates to the C program that the finitel() routine is available.
779 d_flexfnam (d_flexfnam.U):
780 This variable conditionally defines the FLEXFILENAMES symbol, which
781 indicates that the system supports filenames longer than 14 characters.
784 This variable conditionally defines HAS_FLOCK if flock() is
785 available to do file locking.
787 d_flockproto (d_flockproto.U):
788 This variable conditionally defines the HAS_FLOCK_PROTO symbol,
789 which indicates to the C program that the system provides
790 a prototype for the flock() function. Otherwise, it is
791 up to the program to supply one.
794 This variable conditionally defines the HAS_FORK symbol, which
795 indicates to the C program that the fork() routine is available.
797 d_fp_class (d_fp_class.U):
798 This variable conditionally defines the HAS_FP_CLASS symbol, which
799 indicates to the C program that the fp_class() routine is available.
801 d_fpathconf (d_pathconf.U):
802 This variable conditionally defines the HAS_FPATHCONF symbol, which
803 indicates to the C program that the pathconf() routine is available
804 to determine file-system related limits and options associated
805 with a given open file descriptor.
807 d_fpclass (d_fpclass.U):
808 This variable conditionally defines the HAS_FPCLASS symbol, which
809 indicates to the C program that the fpclass() routine is available.
811 d_fpclassify (d_fpclassify.U):
812 This variable conditionally defines the HAS_FPCLASSIFY symbol, which
813 indicates to the C program that the fpclassify() routine is available.
815 d_fpclassl (d_fpclassl.U):
816 This variable conditionally defines the HAS_FPCLASSL symbol, which
817 indicates to the C program that the fpclassl() routine is available.
819 d_fpos64_t (d_fpos64_t.U):
820 This symbol will be defined if the C compiler supports fpos64_t.
822 d_frexpl (d_frexpl.U):
823 This variable conditionally defines the HAS_FREXPL symbol, which
824 indicates to the C program that the frexpl() routine is available.
826 d_fs_data_s (d_fs_data_s.U):
827 This variable conditionally defines the HAS_STRUCT_FS_DATA symbol,
828 which indicates that the struct fs_data is supported.
830 d_fseeko (d_fseeko.U):
831 This variable conditionally defines the HAS_FSEEKO symbol, which
832 indicates to the C program that the fseeko() routine is available.
834 d_fsetpos (d_fsetpos.U):
835 This variable conditionally defines HAS_FSETPOS if fsetpos() is
836 available to set the file position indicator.
838 d_fstatfs (d_fstatfs.U):
839 This variable conditionally defines the HAS_FSTATFS symbol, which
840 indicates to the C program that the fstatfs() routine is available.
842 d_fstatvfs (d_statvfs.U):
843 This variable conditionally defines the HAS_FSTATVFS symbol, which
844 indicates to the C program that the fstatvfs() routine is available.
847 This variable conditionally defines the HAS_FSYNC symbol, which
848 indicates to the C program that the fsync() routine is available.
850 d_ftello (d_ftello.U):
851 This variable conditionally defines the HAS_FTELLO symbol, which
852 indicates to the C program that the ftello() routine is available.
855 This variable conditionally defines the HAS_FTIME symbol, which indicates
856 that the ftime() routine exists. The ftime() routine is basically
857 a sub-second accuracy clock.
859 d_futimes (d_futimes.U):
860 This variable conditionally defines the HAS_FUTIMES symbol, which
861 indicates to the C program that the futimes() routine is available.
863 d_Gconvert (d_gconvert.U):
864 This variable holds what Gconvert is defined as to convert
865 floating point numbers into strings. By default, Configure
866 sets this macro to use the first of gconvert, gcvt, or sprintf
867 that pass sprintf-%g-like behaviour tests. If perl is using
868 long doubles, the macro uses the first of the following
869 functions that pass Configure's tests: qgcvt, sprintf (if
870 Configure knows how to make sprintf format long doubles--see
871 sPRIgldbl), gconvert, gcvt, and sprintf (casting to double).
872 The gconvert_preference and gconvert_ld_preference variables
873 can be used to alter Configure's preferences, for doubles and
874 long doubles, respectively. If present, they contain a
875 space-separated list of one or more of the above function
876 names in the order they should be tried.
878 d_Gconvert may be set to override Configure with a platform-
879 specific function. If this function expects a double, a
880 different value may need to be set by the uselongdouble.cbu
881 call-back unit so that long doubles can be formatted without
884 d_gdbm_ndbm_h_uses_prototypes (i_ndbm.U):
885 This variable conditionally defines the NDBM_H_USES_PROTOTYPES symbol,
886 which indicates that the gdbm-ndbm.h include file uses real ANSI C
887 prototypes instead of K&R style function declarations. K&R style
888 declarations are unsupported in C++, so the include file requires
889 special handling when using a C++ compiler and this variable is
890 undefined. Consult the different d_*ndbm_h_uses_prototypes variables
891 to get the same information for alternative ndbm.h include files.
893 d_gdbmndbm_h_uses_prototypes (i_ndbm.U):
894 This variable conditionally defines the NDBM_H_USES_PROTOTYPES symbol,
895 which indicates that the gdbm/ndbm.h include file uses real ANSI C
896 prototypes instead of K&R style function declarations. K&R style
897 declarations are unsupported in C++, so the include file requires
898 special handling when using a C++ compiler and this variable is
899 undefined. Consult the different d_*ndbm_h_uses_prototypes variables
900 to get the same information for alternative ndbm.h include files.
902 d_getaddrinfo (d_getaddrinfo.U):
903 This variable conditionally defines the HAS_GETADDRINFO symbol,
904 which indicates to the C program that the getaddrinfo() function
907 d_getcwd (d_getcwd.U):
908 This variable conditionally defines the HAS_GETCWD symbol, which
909 indicates to the C program that the getcwd() routine is available
910 to get the current working directory.
912 d_getespwnam (d_getespwnam.U):
913 This variable conditionally defines HAS_GETESPWNAM if getespwnam() is
914 available to retrieve enchanced (shadow) password entries by name.
916 d_getfsstat (d_getfsstat.U):
917 This variable conditionally defines the HAS_GETFSSTAT symbol, which
918 indicates to the C program that the getfsstat() routine is available.
920 d_getgrent (d_getgrent.U):
921 This variable conditionally defines the HAS_GETGRENT symbol, which
922 indicates to the C program that the getgrent() routine is available
923 for sequential access of the group database.
925 d_getgrent_r (d_getgrent_r.U):
926 This variable conditionally defines the HAS_GETGRENT_R symbol,
927 which indicates to the C program that the getgrent_r()
928 routine is available.
930 d_getgrgid_r (d_getgrgid_r.U):
931 This variable conditionally defines the HAS_GETGRGID_R symbol,
932 which indicates to the C program that the getgrgid_r()
933 routine is available.
935 d_getgrnam_r (d_getgrnam_r.U):
936 This variable conditionally defines the HAS_GETGRNAM_R symbol,
937 which indicates to the C program that the getgrnam_r()
938 routine is available.
940 d_getgrps (d_getgrps.U):
941 This variable conditionally defines the HAS_GETGROUPS symbol, which
942 indicates to the C program that the getgroups() routine is available
943 to get the list of process groups.
945 d_gethbyaddr (d_gethbyad.U):
946 This variable conditionally defines the HAS_GETHOSTBYADDR symbol, which
947 indicates to the C program that the gethostbyaddr() routine is available
948 to look up hosts by their IP addresses.
950 d_gethbyname (d_gethbynm.U):
951 This variable conditionally defines the HAS_GETHOSTBYNAME symbol, which
952 indicates to the C program that the gethostbyname() routine is available
953 to look up host names in some data base or other.
955 d_gethent (d_gethent.U):
956 This variable conditionally defines HAS_GETHOSTENT if gethostent() is
957 available to look up host names in some data base or another.
959 d_gethname (d_gethname.U):
960 This variable conditionally defines the HAS_GETHOSTNAME symbol, which
961 indicates to the C program that the gethostname() routine may be
962 used to derive the host name.
964 d_gethostbyaddr_r (d_gethostbyaddr_r.U):
965 This variable conditionally defines the HAS_GETHOSTBYADDR_R symbol,
966 which indicates to the C program that the gethostbyaddr_r()
967 routine is available.
969 d_gethostbyname_r (d_gethostbyname_r.U):
970 This variable conditionally defines the HAS_GETHOSTBYNAME_R symbol,
971 which indicates to the C program that the gethostbyname_r()
972 routine is available.
974 d_gethostent_r (d_gethostent_r.U):
975 This variable conditionally defines the HAS_GETHOSTENT_R symbol,
976 which indicates to the C program that the gethostent_r()
977 routine is available.
979 d_gethostprotos (d_gethostprotos.U):
980 This variable conditionally defines the HAS_GETHOST_PROTOS symbol,
981 which indicates to the C program that <netdb.h> supplies
982 prototypes for the various gethost*() functions.
983 See also netdbtype.U for probing for various netdb types.
985 d_getitimer (d_getitimer.U):
986 This variable conditionally defines the HAS_GETITIMER symbol, which
987 indicates to the C program that the getitimer() routine is available.
989 d_getlogin (d_getlogin.U):
990 This variable conditionally defines the HAS_GETLOGIN symbol, which
991 indicates to the C program that the getlogin() routine is available
992 to get the login name.
994 d_getlogin_r (d_getlogin_r.U):
995 This variable conditionally defines the HAS_GETLOGIN_R symbol,
996 which indicates to the C program that the getlogin_r()
997 routine is available.
999 d_getmnt (d_getmnt.U):
1000 This variable conditionally defines the HAS_GETMNT symbol, which
1001 indicates to the C program that the getmnt() routine is available
1002 to retrieve one or more mount info blocks by filename.
1004 d_getmntent (d_getmntent.U):
1005 This variable conditionally defines the HAS_GETMNTENT symbol, which
1006 indicates to the C program that the getmntent() routine is available
1007 to iterate through mounted files to get their mount info.
1009 d_getnameinfo (d_getnameinfo.U):
1010 This variable conditionally defines the HAS_GETNAMEINFO symbol,
1011 which indicates to the C program that the getnameinfo() function
1014 d_getnbyaddr (d_getnbyad.U):
1015 This variable conditionally defines the HAS_GETNETBYADDR symbol, which
1016 indicates to the C program that the getnetbyaddr() routine is available
1017 to look up networks by their IP addresses.
1019 d_getnbyname (d_getnbynm.U):
1020 This variable conditionally defines the HAS_GETNETBYNAME symbol, which
1021 indicates to the C program that the getnetbyname() routine is available
1022 to look up networks by their names.
1024 d_getnent (d_getnent.U):
1025 This variable conditionally defines HAS_GETNETENT if getnetent() is
1026 available to look up network names in some data base or another.
1028 d_getnetbyaddr_r (d_getnetbyaddr_r.U):
1029 This variable conditionally defines the HAS_GETNETBYADDR_R symbol,
1030 which indicates to the C program that the getnetbyaddr_r()
1031 routine is available.
1033 d_getnetbyname_r (d_getnetbyname_r.U):
1034 This variable conditionally defines the HAS_GETNETBYNAME_R symbol,
1035 which indicates to the C program that the getnetbyname_r()
1036 routine is available.
1038 d_getnetent_r (d_getnetent_r.U):
1039 This variable conditionally defines the HAS_GETNETENT_R symbol,
1040 which indicates to the C program that the getnetent_r()
1041 routine is available.
1043 d_getnetprotos (d_getnetprotos.U):
1044 This variable conditionally defines the HAS_GETNET_PROTOS symbol,
1045 which indicates to the C program that <netdb.h> supplies
1046 prototypes for the various getnet*() functions.
1047 See also netdbtype.U for probing for various netdb types.
1049 d_getpagsz (d_getpagsz.U):
1050 This variable conditionally defines HAS_GETPAGESIZE if getpagesize()
1051 is available to get the system page size.
1053 d_getpbyname (d_getprotby.U):
1054 This variable conditionally defines the HAS_GETPROTOBYNAME
1055 symbol, which indicates to the C program that the
1056 getprotobyname() routine is available to look up protocols
1059 d_getpbynumber (d_getprotby.U):
1060 This variable conditionally defines the HAS_GETPROTOBYNUMBER
1061 symbol, which indicates to the C program that the
1062 getprotobynumber() routine is available to look up protocols
1065 d_getpent (d_getpent.U):
1066 This variable conditionally defines HAS_GETPROTOENT if getprotoent() is
1067 available to look up protocols in some data base or another.
1069 d_getpgid (d_getpgid.U):
1070 This variable conditionally defines the HAS_GETPGID symbol, which
1071 indicates to the C program that the getpgid(pid) function
1072 is available to get the process group id.
1074 d_getpgrp (d_getpgrp.U):
1075 This variable conditionally defines HAS_GETPGRP if getpgrp() is
1076 available to get the current process group.
1078 d_getpgrp2 (d_getpgrp2.U):
1079 This variable conditionally defines the HAS_GETPGRP2 symbol, which
1080 indicates to the C program that the getpgrp2() (as in DG/UX) routine
1081 is available to get the current process group.
1083 d_getppid (d_getppid.U):
1084 This variable conditionally defines the HAS_GETPPID symbol, which
1085 indicates to the C program that the getppid() routine is available
1086 to get the parent process ID.
1088 d_getprior (d_getprior.U):
1089 This variable conditionally defines HAS_GETPRIORITY if getpriority()
1090 is available to get a process's priority.
1092 d_getprotobyname_r (d_getprotobyname_r.U):
1093 This variable conditionally defines the HAS_GETPROTOBYNAME_R symbol,
1094 which indicates to the C program that the getprotobyname_r()
1095 routine is available.
1097 d_getprotobynumber_r (d_getprotobynumber_r.U):
1098 This variable conditionally defines the HAS_GETPROTOBYNUMBER_R symbol,
1099 which indicates to the C program that the getprotobynumber_r()
1100 routine is available.
1102 d_getprotoent_r (d_getprotoent_r.U):
1103 This variable conditionally defines the HAS_GETPROTOENT_R symbol,
1104 which indicates to the C program that the getprotoent_r()
1105 routine is available.
1107 d_getprotoprotos (d_getprotoprotos.U):
1108 This variable conditionally defines the HAS_GETPROTO_PROTOS symbol,
1109 which indicates to the C program that <netdb.h> supplies
1110 prototypes for the various getproto*() functions.
1111 See also netdbtype.U for probing for various netdb types.
1113 d_getprpwnam (d_getprpwnam.U):
1114 This variable conditionally defines HAS_GETPRPWNAM if getprpwnam() is
1115 available to retrieve protected (shadow) password entries by name.
1117 d_getpwent (d_getpwent.U):
1118 This variable conditionally defines the HAS_GETPWENT symbol, which
1119 indicates to the C program that the getpwent() routine is available
1120 for sequential access of the passwd database.
1122 d_getpwent_r (d_getpwent_r.U):
1123 This variable conditionally defines the HAS_GETPWENT_R symbol,
1124 which indicates to the C program that the getpwent_r()
1125 routine is available.
1127 d_getpwnam_r (d_getpwnam_r.U):
1128 This variable conditionally defines the HAS_GETPWNAM_R symbol,
1129 which indicates to the C program that the getpwnam_r()
1130 routine is available.
1132 d_getpwuid_r (d_getpwuid_r.U):
1133 This variable conditionally defines the HAS_GETPWUID_R symbol,
1134 which indicates to the C program that the getpwuid_r()
1135 routine is available.
1137 d_getsbyname (d_getsrvby.U):
1138 This variable conditionally defines the HAS_GETSERVBYNAME
1139 symbol, which indicates to the C program that the
1140 getservbyname() routine is available to look up services
1143 d_getsbyport (d_getsrvby.U):
1144 This variable conditionally defines the HAS_GETSERVBYPORT
1145 symbol, which indicates to the C program that the
1146 getservbyport() routine is available to look up services
1149 d_getsent (d_getsent.U):
1150 This variable conditionally defines HAS_GETSERVENT if getservent() is
1151 available to look up network services in some data base or another.
1153 d_getservbyname_r (d_getservbyname_r.U):
1154 This variable conditionally defines the HAS_GETSERVBYNAME_R symbol,
1155 which indicates to the C program that the getservbyname_r()
1156 routine is available.
1158 d_getservbyport_r (d_getservbyport_r.U):
1159 This variable conditionally defines the HAS_GETSERVBYPORT_R symbol,
1160 which indicates to the C program that the getservbyport_r()
1161 routine is available.
1163 d_getservent_r (d_getservent_r.U):
1164 This variable conditionally defines the HAS_GETSERVENT_R symbol,
1165 which indicates to the C program that the getservent_r()
1166 routine is available.
1168 d_getservprotos (d_getservprotos.U):
1169 This variable conditionally defines the HAS_GETSERV_PROTOS symbol,
1170 which indicates to the C program that <netdb.h> supplies
1171 prototypes for the various getserv*() functions.
1172 See also netdbtype.U for probing for various netdb types.
1174 d_getspnam (d_getspnam.U):
1175 This variable conditionally defines HAS_GETSPNAM if getspnam() is
1176 available to retrieve SysV shadow password entries by name.
1178 d_getspnam_r (d_getspnam_r.U):
1179 This variable conditionally defines the HAS_GETSPNAM_R symbol,
1180 which indicates to the C program that the getspnam_r()
1181 routine is available.
1183 d_gettimeod (d_ftime.U):
1184 This variable conditionally defines the HAS_GETTIMEOFDAY symbol, which
1185 indicates that the gettimeofday() system call exists (to obtain a
1186 sub-second accuracy clock). You should probably include <sys/resource.h>.
1188 d_gmtime64 (d_timefuncs64.U):
1189 This variable conditionally defines the HAS_GMTIME64 symbol, which
1190 indicates to the C program that the gmtime64 () routine is available.
1192 d_gmtime_r (d_gmtime_r.U):
1193 This variable conditionally defines the HAS_GMTIME_R symbol,
1194 which indicates to the C program that the gmtime_r()
1195 routine is available.
1197 d_gnulibc (d_gnulibc.U):
1198 Defined if we're dealing with the GNU C Library.
1200 d_grpasswd (i_grp.U):
1201 This variable conditionally defines GRPASSWD, which indicates
1202 that struct group in <grp.h> contains gr_passwd.
1204 d_hasmntopt (d_hasmntopt.U):
1205 This variable conditionally defines the HAS_HASMNTOPT symbol, which
1206 indicates to the C program that the hasmntopt() routine is available
1207 to query the mount options of file systems.
1209 d_htonl (d_htonl.U):
1210 This variable conditionally defines HAS_HTONL if htonl() and its
1211 friends are available to do network order byte swapping.
1213 d_ilogbl (d_ilogbl.U):
1214 This variable conditionally defines the HAS_ILOGBL symbol, which
1215 indicates to the C program that the ilogbl() routine is available.
1216 If scalbnl is also present we can emulate frexpl.
1218 d_inc_version_list (inc_version_list.U):
1219 This variable conditionally defines PERL_INC_VERSION_LIST.
1220 It is set to undef when PERL_INC_VERSION_LIST is empty.
1222 d_index (d_strchr.U):
1223 This variable conditionally defines HAS_INDEX if index() and
1224 rindex() are available for string searching.
1226 d_inetaton (d_inetaton.U):
1227 This variable conditionally defines the HAS_INET_ATON symbol, which
1228 indicates to the C program that the inet_aton() function is available
1229 to parse IP address "dotted-quad" strings.
1231 d_inetntop (d_inetntop.U):
1232 This variable conditionally defines the HAS_INETNTOP symbol,
1233 which indicates to the C program that the inet_ntop() function
1236 d_inetpton (d_inetpton.U):
1237 This variable conditionally defines the HAS_INETPTON symbol,
1238 which indicates to the C program that the inet_pton() function
1241 d_int64_t (d_int64_t.U):
1242 This symbol will be defined if the C compiler supports int64_t.
1244 d_isascii (d_isascii.U):
1245 This variable conditionally defines the HAS_ISASCII constant,
1246 which indicates to the C program that isascii() is available.
1248 d_isfinite (d_isfinite.U):
1249 This variable conditionally defines the HAS_ISFINITE symbol, which
1250 indicates to the C program that the isfinite() routine is available.
1252 d_isinf (d_isinf.U):
1253 This variable conditionally defines the HAS_ISINF symbol, which
1254 indicates to the C program that the isinf() routine is available.
1256 d_isnan (d_isnan.U):
1257 This variable conditionally defines the HAS_ISNAN symbol, which
1258 indicates to the C program that the isnan() routine is available.
1260 d_isnanl (d_isnanl.U):
1261 This variable conditionally defines the HAS_ISNANL symbol, which
1262 indicates to the C program that the isnanl() routine is available.
1264 d_killpg (d_killpg.U):
1265 This variable conditionally defines the HAS_KILLPG symbol, which
1266 indicates to the C program that the killpg() routine is available
1267 to kill process groups.
1269 d_lchown (d_lchown.U):
1270 This variable conditionally defines the HAS_LCHOWN symbol, which
1271 indicates to the C program that the lchown() routine is available
1272 to operate on a symbolic link (instead of following the link).
1274 d_ldbl_dig (d_ldbl_dig.U):
1275 This variable conditionally defines d_ldbl_dig if this system's
1276 header files provide LDBL_DIG, which is the number of significant
1277 digits in a long double precision number.
1279 d_libm_lib_version (d_libm_lib_version.U):
1280 This variable conditionally defines the LIBM_LIB_VERSION symbol,
1281 which indicates to the C program that math.h defines _LIB_VERSION
1282 being available in libm
1285 This variable conditionally defines HAS_LINK if link() is
1286 available to create hard links.
1288 d_localtime64 (d_timefuncs64.U):
1289 This variable conditionally defines the HAS_LOCALTIME64 symbol, which
1290 indicates to the C program that the localtime64 () routine is available.
1292 d_localtime_r (d_localtime_r.U):
1293 This variable conditionally defines the HAS_LOCALTIME_R symbol,
1294 which indicates to the C program that the localtime_r()
1295 routine is available.
1297 d_localtime_r_needs_tzset (d_localtime_r.U):
1298 This variable conditionally defines the LOCALTIME_R_NEEDS_TZSET
1299 symbol, which makes us call tzset before localtime_r()
1301 d_locconv (d_locconv.U):
1302 This variable conditionally defines HAS_LOCALECONV if localeconv() is
1303 available for numeric and monetary formatting conventions.
1305 d_lockf (d_lockf.U):
1306 This variable conditionally defines HAS_LOCKF if lockf() is
1307 available to do file locking.
1309 d_longdbl (d_longdbl.U):
1310 This variable conditionally defines HAS_LONG_DOUBLE if
1311 the long double type is supported.
1313 d_longlong (d_longlong.U):
1314 This variable conditionally defines HAS_LONG_LONG if
1315 the long long type is supported.
1317 d_lseekproto (d_lseekproto.U):
1318 This variable conditionally defines the HAS_LSEEK_PROTO symbol,
1319 which indicates to the C program that the system provides
1320 a prototype for the lseek() function. Otherwise, it is
1321 up to the program to supply one.
1323 d_lstat (d_lstat.U):
1324 This variable conditionally defines HAS_LSTAT if lstat() is
1325 available to do file stats on symbolic links.
1327 d_madvise (d_madvise.U):
1328 This variable conditionally defines HAS_MADVISE if madvise() is
1329 available to map a file into memory.
1331 d_malloc_good_size (d_malloc_size.U):
1332 This symbol, if defined, indicates that the malloc_good_size
1333 routine is available for use.
1335 d_malloc_size (d_malloc_size.U):
1336 This symbol, if defined, indicates that the malloc_size
1337 routine is available for use.
1339 d_mblen (d_mblen.U):
1340 This variable conditionally defines the HAS_MBLEN symbol, which
1341 indicates to the C program that the mblen() routine is available
1342 to find the number of bytes in a multibye character.
1344 d_mbstowcs (d_mbstowcs.U):
1345 This variable conditionally defines the HAS_MBSTOWCS symbol, which
1346 indicates to the C program that the mbstowcs() routine is available
1347 to convert a multibyte string into a wide character string.
1349 d_mbtowc (d_mbtowc.U):
1350 This variable conditionally defines the HAS_MBTOWC symbol, which
1351 indicates to the C program that the mbtowc() routine is available
1352 to convert multibyte to a wide character.
1354 d_memchr (d_memchr.U):
1355 This variable conditionally defines the HAS_MEMCHR symbol, which
1356 indicates to the C program that the memchr() routine is available
1357 to locate characters within a C string.
1359 d_memcmp (d_memcmp.U):
1360 This variable conditionally defines the HAS_MEMCMP symbol, which
1361 indicates to the C program that the memcmp() routine is available
1362 to compare blocks of memory.
1364 d_memcpy (d_memcpy.U):
1365 This variable conditionally defines the HAS_MEMCPY symbol, which
1366 indicates to the C program that the memcpy() routine is available
1367 to copy blocks of memory.
1369 d_memmove (d_memmove.U):
1370 This variable conditionally defines the HAS_MEMMOVE symbol, which
1371 indicates to the C program that the memmove() routine is available
1372 to copy potentatially overlapping blocks of memory.
1374 d_memset (d_memset.U):
1375 This variable conditionally defines the HAS_MEMSET symbol, which
1376 indicates to the C program that the memset() routine is available
1377 to set blocks of memory.
1379 d_mkdir (d_mkdir.U):
1380 This variable conditionally defines the HAS_MKDIR symbol, which
1381 indicates to the C program that the mkdir() routine is available
1382 to create directories..
1384 d_mkdtemp (d_mkdtemp.U):
1385 This variable conditionally defines the HAS_MKDTEMP symbol, which
1386 indicates to the C program that the mkdtemp() routine is available
1387 to exclusively create a uniquely named temporary directory.
1389 d_mkfifo (d_mkfifo.U):
1390 This variable conditionally defines the HAS_MKFIFO symbol, which
1391 indicates to the C program that the mkfifo() routine is available.
1393 d_mkstemp (d_mkstemp.U):
1394 This variable conditionally defines the HAS_MKSTEMP symbol, which
1395 indicates to the C program that the mkstemp() routine is available
1396 to exclusively create and open a uniquely named temporary file.
1398 d_mkstemps (d_mkstemps.U):
1399 This variable conditionally defines the HAS_MKSTEMPS symbol, which
1400 indicates to the C program that the mkstemps() routine is available
1401 to exclusively create and open a uniquely named (with a suffix)
1404 d_mktime (d_mktime.U):
1405 This variable conditionally defines the HAS_MKTIME symbol, which
1406 indicates to the C program that the mktime() routine is available.
1408 d_mktime64 (d_timefuncs64.U):
1409 This variable conditionally defines the HAS_MKTIME64 symbol, which
1410 indicates to the C program that the mktime64 () routine is available.
1413 This variable conditionally defines HAS_MMAP if mmap() is
1414 available to map a file into memory.
1416 d_modfl (d_modfl.U):
1417 This variable conditionally defines the HAS_MODFL symbol, which
1418 indicates to the C program that the modfl() routine is available.
1420 d_modfl_pow32_bug (d_modfl.U):
1421 This variable conditionally defines the HAS_MODFL_POW32_BUG symbol,
1422 which indicates that modfl() is broken for long doubles >= pow(2, 32).
1423 For example from 4294967303.150000 one would get 4294967302.000000
1424 and 1.150000. The bug has been seen in certain versions of glibc,
1425 release 2.2.2 is known to be okay.
1427 d_modflproto (d_modfl.U):
1428 This symbol, if defined, indicates that the system provides
1429 a prototype for the modfl() function. Otherwise, it is up
1430 to the program to supply one. C99 says it should be
1431 long double modfl(long double, long double *);
1433 d_mprotect (d_mprotect.U):
1434 This variable conditionally defines HAS_MPROTECT if mprotect() is
1435 available to modify the access protection of a memory mapped file.
1438 This variable conditionally defines the HAS_MSG symbol, which
1439 indicates that the entire msg*(2) library is present.
1441 d_msg_ctrunc (d_socket.U):
1442 This variable conditionally defines the HAS_MSG_CTRUNC symbol,
1443 which indicates that the MSG_CTRUNC is available. #ifdef is
1444 not enough because it may be an enum, glibc has been known to do this.
1446 d_msg_dontroute (d_socket.U):
1447 This variable conditionally defines the HAS_MSG_DONTROUTE symbol,
1448 which indicates that the MSG_DONTROUTE is available. #ifdef is
1449 not enough because it may be an enum, glibc has been known to do this.
1451 d_msg_oob (d_socket.U):
1452 This variable conditionally defines the HAS_MSG_OOB symbol,
1453 which indicates that the MSG_OOB is available. #ifdef is
1454 not enough because it may be an enum, glibc has been known to do this.
1456 d_msg_peek (d_socket.U):
1457 This variable conditionally defines the HAS_MSG_PEEK symbol,
1458 which indicates that the MSG_PEEK is available. #ifdef is
1459 not enough because it may be an enum, glibc has been known to do this.
1461 d_msg_proxy (d_socket.U):
1462 This variable conditionally defines the HAS_MSG_PROXY symbol,
1463 which indicates that the MSG_PROXY is available. #ifdef is
1464 not enough because it may be an enum, glibc has been known to do this.
1466 d_msgctl (d_msgctl.U):
1467 This variable conditionally defines the HAS_MSGCTL symbol, which
1468 indicates to the C program that the msgctl() routine is available.
1470 d_msgget (d_msgget.U):
1471 This variable conditionally defines the HAS_MSGGET symbol, which
1472 indicates to the C program that the msgget() routine is available.
1474 d_msghdr_s (d_msghdr_s.U):
1475 This variable conditionally defines the HAS_STRUCT_MSGHDR symbol,
1476 which indicates that the struct msghdr is supported.
1478 d_msgrcv (d_msgrcv.U):
1479 This variable conditionally defines the HAS_MSGRCV symbol, which
1480 indicates to the C program that the msgrcv() routine is available.
1482 d_msgsnd (d_msgsnd.U):
1483 This variable conditionally defines the HAS_MSGSND symbol, which
1484 indicates to the C program that the msgsnd() routine is available.
1486 d_msync (d_msync.U):
1487 This variable conditionally defines HAS_MSYNC if msync() is
1488 available to synchronize a mapped file.
1490 d_munmap (d_munmap.U):
1491 This variable conditionally defines HAS_MUNMAP if munmap() is
1492 available to unmap a region mapped by mmap().
1494 d_mymalloc (mallocsrc.U):
1495 This variable conditionally defines MYMALLOC in case other parts
1496 of the source want to take special action if MYMALLOC is used.
1497 This may include different sorts of profiling or error detection.
1500 This variable conditionally defines the HAS_NDBM symbol, which
1501 indicates that both the ndbm.h include file and an appropriate ndbm
1502 library exist. Consult the different i_*ndbm variables
1503 to find out the actual include location. Sometimes, a system has the
1504 header file but not the library. This variable will only be set if
1505 the system has both.
1507 d_ndbm_h_uses_prototypes (i_ndbm.U):
1508 This variable conditionally defines the NDBM_H_USES_PROTOTYPES symbol,
1509 which indicates that the ndbm.h include file uses real ANSI C
1510 prototypes instead of K&R style function declarations. K&R style
1511 declarations are unsupported in C++, so the include file requires
1512 special handling when using a C++ compiler and this variable is
1513 undefined. Consult the different d_*ndbm_h_uses_prototypes variables
1514 to get the same information for alternative ndbm.h include files.
1517 This variable conditionally defines the HAS_NICE symbol, which
1518 indicates to the C program that the nice() routine is available.
1520 d_nl_langinfo (d_nl_langinfo.U):
1521 This variable conditionally defines the HAS_NL_LANGINFO symbol, which
1522 indicates to the C program that the nl_langinfo() routine is available.
1524 d_nv_preserves_uv (perlxv.U):
1525 This variable indicates whether a variable of type nvtype
1526 can preserve all the bits a variable of type uvtype.
1528 d_nv_zero_is_allbits_zero (perlxv.U):
1529 This variable indicates whether a variable of type nvtype
1530 stores 0.0 in memory as all bits zero.
1532 d_off64_t (d_off64_t.U):
1533 This symbol will be defined if the C compiler supports off64_t.
1535 d_old_pthread_create_joinable (d_pthrattrj.U):
1536 This variable conditionally defines pthread_create_joinable.
1537 undef if pthread.h defines PTHREAD_CREATE_JOINABLE.
1539 d_oldpthreads (usethreads.U):
1540 This variable conditionally defines the OLD_PTHREADS_API symbol,
1541 and indicates that Perl should be built to use the old
1542 draft POSIX threads API. This is only potentially meaningful if
1545 d_oldsock (d_socket.U):
1546 This variable conditionally defines the OLDSOCKET symbol, which
1547 indicates that the BSD socket interface is based on 4.1c and not 4.2.
1549 d_open3 (d_open3.U):
1550 This variable conditionally defines the HAS_OPEN3 manifest constant,
1551 which indicates to the C program that the 3 argument version of
1552 the open(2) function is available.
1554 d_pathconf (d_pathconf.U):
1555 This variable conditionally defines the HAS_PATHCONF symbol, which
1556 indicates to the C program that the pathconf() routine is available
1557 to determine file-system related limits and options associated
1558 with a given filename.
1560 d_pause (d_pause.U):
1561 This variable conditionally defines the HAS_PAUSE symbol, which
1562 indicates to the C program that the pause() routine is available
1563 to suspend a process until a signal is received.
1565 d_perl_otherlibdirs (otherlibdirs.U):
1566 This variable conditionally defines PERL_OTHERLIBDIRS, which
1567 contains a colon-separated set of paths for the perl binary to
1568 include in @INC. See also otherlibdirs.
1570 d_phostname (d_gethname.U):
1571 This variable conditionally defines the HAS_PHOSTNAME symbol, which
1572 contains the shell command which, when fed to popen(), may be
1573 used to derive the host name.
1576 This variable conditionally defines the HAS_PIPE symbol, which
1577 indicates to the C program that the pipe() routine is available
1578 to create an inter-process channel.
1581 This variable conditionally defines the HAS_POLL symbol, which
1582 indicates to the C program that the poll() routine is available
1583 to poll active file descriptors.
1585 d_portable (d_portable.U):
1586 This variable conditionally defines the PORTABLE symbol, which
1587 indicates to the C program that it should not assume that it is
1588 running on the machine it was compiled on.
1590 d_PRId64 (quadfio.U):
1591 This variable conditionally defines the PERL_PRId64 symbol, which
1592 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1594 d_PRIeldbl (longdblfio.U):
1595 This variable conditionally defines the PERL_PRIfldbl symbol, which
1596 indiciates that stdio has a symbol to print long doubles.
1598 d_PRIEUldbl (longdblfio.U):
1599 This variable conditionally defines the PERL_PRIfldbl symbol, which
1600 indiciates that stdio has a symbol to print long doubles.
1601 The 'U' in the name is to separate this from d_PRIeldbl so that even
1602 case-blind systems can see the difference.
1604 d_PRIfldbl (longdblfio.U):
1605 This variable conditionally defines the PERL_PRIfldbl symbol, which
1606 indiciates that stdio has a symbol to print long doubles.
1608 d_PRIFUldbl (longdblfio.U):
1609 This variable conditionally defines the PERL_PRIfldbl symbol, which
1610 indiciates that stdio has a symbol to print long doubles.
1611 The 'U' in the name is to separate this from d_PRIfldbl so that even
1612 case-blind systems can see the difference.
1614 d_PRIgldbl (longdblfio.U):
1615 This variable conditionally defines the PERL_PRIfldbl symbol, which
1616 indiciates that stdio has a symbol to print long doubles.
1618 d_PRIGUldbl (longdblfio.U):
1619 This variable conditionally defines the PERL_PRIfldbl symbol, which
1620 indiciates that stdio has a symbol to print long doubles.
1621 The 'U' in the name is to separate this from d_PRIgldbl so that even
1622 case-blind systems can see the difference.
1624 d_PRIi64 (quadfio.U):
1625 This variable conditionally defines the PERL_PRIi64 symbol, which
1626 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1628 d_printf_format_null (d_attribut.U):
1629 This variable conditionally defines PRINTF_FORMAT_NULL_OK, which
1630 indicates the C compiler allows printf-like formats to be null.
1632 d_PRIo64 (quadfio.U):
1633 This variable conditionally defines the PERL_PRIo64 symbol, which
1634 indiciates that stdio has a symbol to print 64-bit octal numbers.
1636 d_PRIu64 (quadfio.U):
1637 This variable conditionally defines the PERL_PRIu64 symbol, which
1638 indiciates that stdio has a symbol to print 64-bit unsigned decimal
1641 d_PRIx64 (quadfio.U):
1642 This variable conditionally defines the PERL_PRIx64 symbol, which
1643 indiciates that stdio has a symbol to print 64-bit hexadecimal numbers.
1645 d_PRIXU64 (quadfio.U):
1646 This variable conditionally defines the PERL_PRIXU64 symbol, which
1647 indiciates that stdio has a symbol to print 64-bit hExADECimAl numbers.
1648 The 'U' in the name is to separate this from d_PRIx64 so that even
1649 case-blind systems can see the difference.
1651 d_procselfexe (d_procselfexe.U):
1652 Defined if $procselfexe is symlink to the absolute
1653 pathname of the executing program.
1655 d_pseudofork (d_vfork.U):
1656 This variable conditionally defines the HAS_PSEUDOFORK symbol,
1657 which indicates that an emulation of the fork routine is available.
1659 d_pthread_atfork (d_pthread_atfork.U):
1660 This variable conditionally defines the HAS_PTHREAD_ATFORK symbol,
1661 which indicates to the C program that the pthread_atfork()
1662 routine is available.
1664 d_pthread_attr_setscope (d_pthread_attr_ss.U):
1665 This variable conditionally defines HAS_PTHREAD_ATTR_SETSCOPE if
1666 pthread_attr_setscope() is available to set the contention scope
1667 attribute of a thread attribute object.
1669 d_pthread_yield (d_pthread_y.U):
1670 This variable conditionally defines the HAS_PTHREAD_YIELD
1671 symbol if the pthread_yield routine is available to yield
1672 the execution of the current thread.
1675 This variable conditionally defines PWAGE, which indicates
1676 that struct passwd contains pw_age.
1678 d_pwchange (i_pwd.U):
1679 This variable conditionally defines PWCHANGE, which indicates
1680 that struct passwd contains pw_change.
1682 d_pwclass (i_pwd.U):
1683 This variable conditionally defines PWCLASS, which indicates
1684 that struct passwd contains pw_class.
1686 d_pwcomment (i_pwd.U):
1687 This variable conditionally defines PWCOMMENT, which indicates
1688 that struct passwd contains pw_comment.
1690 d_pwexpire (i_pwd.U):
1691 This variable conditionally defines PWEXPIRE, which indicates
1692 that struct passwd contains pw_expire.
1694 d_pwgecos (i_pwd.U):
1695 This variable conditionally defines PWGECOS, which indicates
1696 that struct passwd contains pw_gecos.
1698 d_pwpasswd (i_pwd.U):
1699 This variable conditionally defines PWPASSWD, which indicates
1700 that struct passwd contains pw_passwd.
1702 d_pwquota (i_pwd.U):
1703 This variable conditionally defines PWQUOTA, which indicates
1704 that struct passwd contains pw_quota.
1706 d_qgcvt (d_qgcvt.U):
1707 This variable conditionally defines the HAS_QGCVT symbol, which
1708 indicates to the C program that the qgcvt() routine is available.
1710 d_quad (quadtype.U):
1711 This variable, if defined, tells that there's a 64-bit integer type,
1714 d_random_r (d_random_r.U):
1715 This variable conditionally defines the HAS_RANDOM_R symbol,
1716 which indicates to the C program that the random_r()
1717 routine is available.
1719 d_readdir (d_readdir.U):
1720 This variable conditionally defines HAS_READDIR if readdir() is
1721 available to read directory entries.
1723 d_readdir64_r (d_readdir64_r.U):
1724 This variable conditionally defines the HAS_READDIR64_R symbol,
1725 which indicates to the C program that the readdir64_r()
1726 routine is available.
1728 d_readdir_r (d_readdir_r.U):
1729 This variable conditionally defines the HAS_READDIR_R symbol,
1730 which indicates to the C program that the readdir_r()
1731 routine is available.
1733 d_readlink (d_readlink.U):
1734 This variable conditionally defines the HAS_READLINK symbol, which
1735 indicates to the C program that the readlink() routine is available
1736 to read the value of a symbolic link.
1738 d_readv (d_readv.U):
1739 This variable conditionally defines the HAS_READV symbol, which
1740 indicates to the C program that the readv() routine is available.
1742 d_recvmsg (d_recvmsg.U):
1743 This variable conditionally defines the HAS_RECVMSG symbol, which
1744 indicates to the C program that the recvmsg() routine is available.
1746 d_rename (d_rename.U):
1747 This variable conditionally defines the HAS_RENAME symbol, which
1748 indicates to the C program that the rename() routine is available
1751 d_rewinddir (d_readdir.U):
1752 This variable conditionally defines HAS_REWINDDIR if rewinddir() is
1755 d_rmdir (d_rmdir.U):
1756 This variable conditionally defines HAS_RMDIR if rmdir() is
1757 available to remove directories.
1759 d_safebcpy (d_safebcpy.U):
1760 This variable conditionally defines the HAS_SAFE_BCOPY symbol if
1761 the bcopy() routine can do overlapping copies. Normally, you
1762 should probably use memmove().
1764 d_safemcpy (d_safemcpy.U):
1765 This variable conditionally defines the HAS_SAFE_MEMCPY symbol if
1766 the memcpy() routine can do overlapping copies.
1767 For overlapping copies, memmove() should be used, if available.
1769 d_sanemcmp (d_sanemcmp.U):
1770 This variable conditionally defines the HAS_SANE_MEMCMP symbol if
1771 the memcpy() routine is available and can be used to compare relative
1772 magnitudes of chars with their high bits set.
1774 d_sbrkproto (d_sbrkproto.U):
1775 This variable conditionally defines the HAS_SBRK_PROTO symbol,
1776 which indicates to the C program that the system provides
1777 a prototype for the sbrk() function. Otherwise, it is
1778 up to the program to supply one.
1780 d_scalbnl (d_scalbnl.U):
1781 This variable conditionally defines the HAS_SCALBNL symbol, which
1782 indicates to the C program that the scalbnl() routine is available.
1783 If ilogbl is also present we can emulate frexpl.
1785 d_sched_yield (d_pthread_y.U):
1786 This variable conditionally defines the HAS_SCHED_YIELD
1787 symbol if the sched_yield routine is available to yield
1788 the execution of the current thread.
1790 d_scm_rights (d_socket.U):
1791 This variable conditionally defines the HAS_SCM_RIGHTS symbol,
1792 which indicates that the SCM_RIGHTS is available. #ifdef is
1793 not enough because it may be an enum, glibc has been known to do this.
1795 d_SCNfldbl (longdblfio.U):
1796 This variable conditionally defines the PERL_PRIfldbl symbol, which
1797 indiciates that stdio has a symbol to scan long doubles.
1799 d_seekdir (d_readdir.U):
1800 This variable conditionally defines HAS_SEEKDIR if seekdir() is
1803 d_select (d_select.U):
1804 This variable conditionally defines HAS_SELECT if select() is
1805 available to select active file descriptors. A <sys/time.h>
1806 inclusion may be necessary for the timeout field.
1809 This variable conditionally defines the HAS_SEM symbol, which
1810 indicates that the entire sem*(2) library is present.
1812 d_semctl (d_semctl.U):
1813 This variable conditionally defines the HAS_SEMCTL symbol, which
1814 indicates to the C program that the semctl() routine is available.
1816 d_semctl_semid_ds (d_union_semun.U):
1817 This variable conditionally defines USE_SEMCTL_SEMID_DS, which
1818 indicates that struct semid_ds * is to be used for semctl IPC_STAT.
1820 d_semctl_semun (d_union_semun.U):
1821 This variable conditionally defines USE_SEMCTL_SEMUN, which
1822 indicates that union semun is to be used for semctl IPC_STAT.
1824 d_semget (d_semget.U):
1825 This variable conditionally defines the HAS_SEMGET symbol, which
1826 indicates to the C program that the semget() routine is available.
1828 d_semop (d_semop.U):
1829 This variable conditionally defines the HAS_SEMOP symbol, which
1830 indicates to the C program that the semop() routine is available.
1832 d_sendmsg (d_sendmsg.U):
1833 This variable conditionally defines the HAS_SENDMSG symbol, which
1834 indicates to the C program that the sendmsg() routine is available.
1836 d_setegid (d_setegid.U):
1837 This variable conditionally defines the HAS_SETEGID symbol, which
1838 indicates to the C program that the setegid() routine is available
1839 to change the effective gid of the current program.
1841 d_seteuid (d_seteuid.U):
1842 This variable conditionally defines the HAS_SETEUID symbol, which
1843 indicates to the C program that the seteuid() routine is available
1844 to change the effective uid of the current program.
1846 d_setgrent (d_setgrent.U):
1847 This variable conditionally defines the HAS_SETGRENT symbol, which
1848 indicates to the C program that the setgrent() routine is available
1849 for initializing sequential access to the group database.
1851 d_setgrent_r (d_setgrent_r.U):
1852 This variable conditionally defines the HAS_SETGRENT_R symbol,
1853 which indicates to the C program that the setgrent_r()
1854 routine is available.
1856 d_setgrps (d_setgrps.U):
1857 This variable conditionally defines the HAS_SETGROUPS symbol, which
1858 indicates to the C program that the setgroups() routine is available
1859 to set the list of process groups.
1861 d_sethent (d_sethent.U):
1862 This variable conditionally defines HAS_SETHOSTENT if sethostent() is
1865 d_sethostent_r (d_sethostent_r.U):
1866 This variable conditionally defines the HAS_SETHOSTENT_R symbol,
1867 which indicates to the C program that the sethostent_r()
1868 routine is available.
1870 d_setitimer (d_setitimer.U):
1871 This variable conditionally defines the HAS_SETITIMER symbol, which
1872 indicates to the C program that the setitimer() routine is available.
1874 d_setlinebuf (d_setlnbuf.U):
1875 This variable conditionally defines the HAS_SETLINEBUF symbol, which
1876 indicates to the C program that the setlinebuf() routine is available
1877 to change stderr or stdout from block-buffered or unbuffered to a
1880 d_setlocale (d_setlocale.U):
1881 This variable conditionally defines HAS_SETLOCALE if setlocale() is
1882 available to handle locale-specific ctype implementations.
1884 d_setlocale_r (d_setlocale_r.U):
1885 This variable conditionally defines the HAS_SETLOCALE_R symbol,
1886 which indicates to the C program that the setlocale_r()
1887 routine is available.
1889 d_setnent (d_setnent.U):
1890 This variable conditionally defines HAS_SETNETENT if setnetent() is
1893 d_setnetent_r (d_setnetent_r.U):
1894 This variable conditionally defines the HAS_SETNETENT_R symbol,
1895 which indicates to the C program that the setnetent_r()
1896 routine is available.
1898 d_setpent (d_setpent.U):
1899 This variable conditionally defines HAS_SETPROTOENT if setprotoent() is
1902 d_setpgid (d_setpgid.U):
1903 This variable conditionally defines the HAS_SETPGID symbol if the
1904 setpgid(pid, gpid) function is available to set process group ID.
1906 d_setpgrp (d_setpgrp.U):
1907 This variable conditionally defines HAS_SETPGRP if setpgrp() is
1908 available to set the current process group.
1910 d_setpgrp2 (d_setpgrp2.U):
1911 This variable conditionally defines the HAS_SETPGRP2 symbol, which
1912 indicates to the C program that the setpgrp2() (as in DG/UX) routine
1913 is available to set the current process group.
1915 d_setprior (d_setprior.U):
1916 This variable conditionally defines HAS_SETPRIORITY if setpriority()
1917 is available to set a process's priority.
1919 d_setproctitle (d_setproctitle.U):
1920 This variable conditionally defines the HAS_SETPROCTITLE symbol,
1921 which indicates to the C program that the setproctitle() routine
1924 d_setprotoent_r (d_setprotoent_r.U):
1925 This variable conditionally defines the HAS_SETPROTOENT_R symbol,
1926 which indicates to the C program that the setprotoent_r()
1927 routine is available.
1929 d_setpwent (d_setpwent.U):
1930 This variable conditionally defines the HAS_SETPWENT symbol, which
1931 indicates to the C program that the setpwent() routine is available
1932 for initializing sequential access to the passwd database.
1934 d_setpwent_r (d_setpwent_r.U):
1935 This variable conditionally defines the HAS_SETPWENT_R symbol,
1936 which indicates to the C program that the setpwent_r()
1937 routine is available.
1939 d_setregid (d_setregid.U):
1940 This variable conditionally defines HAS_SETREGID if setregid() is
1941 available to change the real and effective gid of the current
1944 d_setresgid (d_setregid.U):
1945 This variable conditionally defines HAS_SETRESGID if setresgid() is
1946 available to change the real, effective and saved gid of the current
1949 d_setresuid (d_setreuid.U):
1950 This variable conditionally defines HAS_SETREUID if setresuid() is
1951 available to change the real, effective and saved uid of the current
1954 d_setreuid (d_setreuid.U):
1955 This variable conditionally defines HAS_SETREUID if setreuid() is
1956 available to change the real and effective uid of the current
1959 d_setrgid (d_setrgid.U):
1960 This variable conditionally defines the HAS_SETRGID symbol, which
1961 indicates to the C program that the setrgid() routine is available
1962 to change the real gid of the current program.
1964 d_setruid (d_setruid.U):
1965 This variable conditionally defines the HAS_SETRUID symbol, which
1966 indicates to the C program that the setruid() routine is available
1967 to change the real uid of the current program.
1969 d_setsent (d_setsent.U):
1970 This variable conditionally defines HAS_SETSERVENT if setservent() is
1973 d_setservent_r (d_setservent_r.U):
1974 This variable conditionally defines the HAS_SETSERVENT_R symbol,
1975 which indicates to the C program that the setservent_r()
1976 routine is available.
1978 d_setsid (d_setsid.U):
1979 This variable conditionally defines HAS_SETSID if setsid() is
1980 available to set the process group ID.
1982 d_setvbuf (d_setvbuf.U):
1983 This variable conditionally defines the HAS_SETVBUF symbol, which
1984 indicates to the C program that the setvbuf() routine is available
1985 to change buffering on an open stdio stream.
1988 This variable conditionally defines the USE_SFIO symbol,
1989 and indicates whether sfio is available (and should be used).
1992 This variable conditionally defines the HAS_SHM symbol, which
1993 indicates that the entire shm*(2) library is present.
1995 d_shmat (d_shmat.U):
1996 This variable conditionally defines the HAS_SHMAT symbol, which
1997 indicates to the C program that the shmat() routine is available.
1999 d_shmatprototype (d_shmat.U):
2000 This variable conditionally defines the HAS_SHMAT_PROTOTYPE
2001 symbol, which indicates that sys/shm.h has a prototype for
2004 d_shmctl (d_shmctl.U):
2005 This variable conditionally defines the HAS_SHMCTL symbol, which
2006 indicates to the C program that the shmctl() routine is available.
2008 d_shmdt (d_shmdt.U):
2009 This variable conditionally defines the HAS_SHMDT symbol, which
2010 indicates to the C program that the shmdt() routine is available.
2012 d_shmget (d_shmget.U):
2013 This variable conditionally defines the HAS_SHMGET symbol, which
2014 indicates to the C program that the shmget() routine is available.
2016 d_sigaction (d_sigaction.U):
2017 This variable conditionally defines the HAS_SIGACTION symbol, which
2018 indicates that the Vr4 sigaction() routine is available.
2020 d_signbit (d_signbit.U):
2021 This variable conditionally defines the HAS_SIGNBIT symbol, which
2022 indicates to the C program that the signbit() routine is available
2023 and safe to use with perl's intern NV type.
2025 d_sigprocmask (d_sigprocmask.U):
2026 This variable conditionally defines HAS_SIGPROCMASK
2027 if sigprocmask() is available to examine or change the signal mask
2028 of the calling process.
2030 d_sigsetjmp (d_sigsetjmp.U):
2031 This variable conditionally defines the HAS_SIGSETJMP symbol,
2032 which indicates that the sigsetjmp() routine is available to
2033 call setjmp() and optionally save the process's signal mask.
2035 d_sitearch (sitearch.U):
2036 This variable conditionally defines SITEARCH to hold the pathname
2037 of architecture-dependent library files for $package. If
2038 $sitearch is the same as $archlib, then this is set to undef.
2040 d_snprintf (d_snprintf.U):
2041 This variable conditionally defines the HAS_SNPRINTF symbol, which
2042 indicates to the C program that the snprintf () library function
2045 d_sockatmark (d_sockatmark.U):
2046 This variable conditionally defines the HAS_SOCKATMARK symbol, which
2047 indicates to the C program that the sockatmark() routine is available.
2049 d_sockatmarkproto (d_sockatmarkproto.U):
2050 This variable conditionally defines the HAS_SOCKATMARK_PROTO symbol,
2051 which indicates to the C program that the system provides
2052 a prototype for the sockatmark() function. Otherwise, it is
2053 up to the program to supply one.
2055 d_socket (d_socket.U):
2056 This variable conditionally defines HAS_SOCKET, which indicates
2057 that the BSD socket interface is supported.
2059 d_socklen_t (d_socklen_t.U):
2060 This symbol will be defined if the C compiler supports socklen_t.
2062 d_sockpair (d_socket.U):
2063 This variable conditionally defines the HAS_SOCKETPAIR symbol, which
2064 indicates that the BSD socketpair() is supported.
2066 d_socks5_init (d_socks5_init.U):
2067 This variable conditionally defines the HAS_SOCKS5_INIT symbol, which
2068 indicates to the C program that the socks5_init() routine is available.
2070 d_sprintf_returns_strlen (d_sprintf_len.U):
2071 This variable defines whether sprintf returns the length of the string
2072 (as per the ANSI spec). Some C libraries retain compatibility with
2073 pre-ANSI C and return a pointer to the passed in buffer; for these
2074 this variable will be undef.
2076 d_sqrtl (d_sqrtl.U):
2077 This variable conditionally defines the HAS_SQRTL symbol, which
2078 indicates to the C program that the sqrtl() routine is available.
2080 d_srand48_r (d_srand48_r.U):
2081 This variable conditionally defines the HAS_SRAND48_R symbol,
2082 which indicates to the C program that the srand48_r()
2083 routine is available.
2085 d_srandom_r (d_srandom_r.U):
2086 This variable conditionally defines the HAS_SRANDOM_R symbol,
2087 which indicates to the C program that the srandom_r()
2088 routine is available.
2090 d_sresgproto (d_sresgproto.U):
2091 This variable conditionally defines the HAS_SETRESGID_PROTO symbol,
2092 which indicates to the C program that the system provides
2093 a prototype for the setresgid() function. Otherwise, it is
2094 up to the program to supply one.
2096 d_sresuproto (d_sresuproto.U):
2097 This variable conditionally defines the HAS_SETRESUID_PROTO symbol,
2098 which indicates to the C program that the system provides
2099 a prototype for the setresuid() function. Otherwise, it is
2100 up to the program to supply one.
2102 d_statblks (d_statblks.U):
2103 This variable conditionally defines USE_STAT_BLOCKS
2104 if this system has a stat structure declaring
2105 st_blksize and st_blocks.
2107 d_statfs_f_flags (d_statfs_f_flags.U):
2108 This variable conditionally defines the HAS_STRUCT_STATFS_F_FLAGS
2109 symbol, which indicates to struct statfs from has f_flags member.
2110 This kind of struct statfs is coming from sys/mount.h (BSD),
2111 not from sys/statfs.h (SYSV).
2113 d_statfs_s (d_statfs_s.U):
2114 This variable conditionally defines the HAS_STRUCT_STATFS symbol,
2115 which indicates that the struct statfs is supported.
2117 d_statvfs (d_statvfs.U):
2118 This variable conditionally defines the HAS_STATVFS symbol, which
2119 indicates to the C program that the statvfs() routine is available.
2121 d_stdio_cnt_lval (d_stdstdio.U):
2122 This variable conditionally defines STDIO_CNT_LVALUE if the
2123 FILE_cnt macro can be used as an lvalue.
2125 d_stdio_ptr_lval (d_stdstdio.U):
2126 This variable conditionally defines STDIO_PTR_LVALUE if the
2127 FILE_ptr macro can be used as an lvalue.
2129 d_stdio_ptr_lval_nochange_cnt (d_stdstdio.U):
2130 This symbol is defined if using the FILE_ptr macro as an lvalue
2131 to increase the pointer by n leaves File_cnt(fp) unchanged.
2133 d_stdio_ptr_lval_sets_cnt (d_stdstdio.U):
2134 This symbol is defined if using the FILE_ptr macro as an lvalue
2135 to increase the pointer by n has the side effect of decreasing the
2136 value of File_cnt(fp) by n.
2138 d_stdio_stream_array (stdio_streams.U):
2139 This variable tells whether there is an array holding
2142 d_stdiobase (d_stdstdio.U):
2143 This variable conditionally defines USE_STDIO_BASE if this system
2144 has a FILE structure declaring a usable _base field (or equivalent)
2147 d_stdstdio (d_stdstdio.U):
2148 This variable conditionally defines USE_STDIO_PTR if this system
2149 has a FILE structure declaring usable _ptr and _cnt fields (or
2150 equivalent) in stdio.h.
2152 d_strchr (d_strchr.U):
2153 This variable conditionally defines HAS_STRCHR if strchr() and
2154 strrchr() are available for string searching.
2156 d_strcoll (d_strcoll.U):
2157 This variable conditionally defines HAS_STRCOLL if strcoll() is
2158 available to compare strings using collating information.
2160 d_strctcpy (d_strctcpy.U):
2161 This variable conditionally defines the USE_STRUCT_COPY symbol, which
2162 indicates to the C program that this C compiler knows how to copy
2165 d_strerrm (d_strerror.U):
2166 This variable holds what Strerrr is defined as to translate an error
2167 code condition into an error message string. It could be 'strerror'
2168 or a more complex macro emulating strrror with sys_errlist[], or the
2169 "unknown" string when both strerror and sys_errlist are missing.
2171 d_strerror (d_strerror.U):
2172 This variable conditionally defines HAS_STRERROR if strerror() is
2173 available to translate error numbers to strings.
2175 d_strerror_r (d_strerror_r.U):
2176 This variable conditionally defines the HAS_STRERROR_R symbol,
2177 which indicates to the C program that the strerror_r()
2178 routine is available.
2180 d_strftime (d_strftime.U):
2181 This variable conditionally defines the HAS_STRFTIME symbol, which
2182 indicates to the C program that the strftime() routine is available.
2184 d_strlcat (d_strlcat.U):
2185 This variable conditionally defines the HAS_STRLCAT symbol, which
2186 indicates to the C program that the strlcat () routine is available.
2188 d_strlcpy (d_strlcpy.U):
2189 This variable conditionally defines the HAS_STRLCPY symbol, which
2190 indicates to the C program that the strlcpy () routine is available.
2192 d_strtod (d_strtod.U):
2193 This variable conditionally defines the HAS_STRTOD symbol, which
2194 indicates to the C program that the strtod() routine is available
2195 to provide better numeric string conversion than atof().
2197 d_strtol (d_strtol.U):
2198 This variable conditionally defines the HAS_STRTOL symbol, which
2199 indicates to the C program that the strtol() routine is available
2200 to provide better numeric string conversion than atoi() and friends.
2202 d_strtold (d_strtold.U):
2203 This variable conditionally defines the HAS_STRTOLD symbol, which
2204 indicates to the C program that the strtold() routine is available.
2206 d_strtoll (d_strtoll.U):
2207 This variable conditionally defines the HAS_STRTOLL symbol, which
2208 indicates to the C program that the strtoll() routine is available.
2210 d_strtoq (d_strtoq.U):
2211 This variable conditionally defines the HAS_STRTOQ symbol, which
2212 indicates to the C program that the strtoq() routine is available.
2214 d_strtoul (d_strtoul.U):
2215 This variable conditionally defines the HAS_STRTOUL symbol, which
2216 indicates to the C program that the strtoul() routine is available
2217 to provide conversion of strings to unsigned long.
2219 d_strtoull (d_strtoull.U):
2220 This variable conditionally defines the HAS_STRTOULL symbol, which
2221 indicates to the C program that the strtoull() routine is available.
2223 d_strtouq (d_strtouq.U):
2224 This variable conditionally defines the HAS_STRTOUQ symbol, which
2225 indicates to the C program that the strtouq() routine is available.
2227 d_strxfrm (d_strxfrm.U):
2228 This variable conditionally defines HAS_STRXFRM if strxfrm() is
2229 available to transform strings.
2231 d_suidsafe (d_dosuid.U):
2232 This variable conditionally defines SETUID_SCRIPTS_ARE_SECURE_NOW
2233 if setuid scripts can be secure. This test looks in /dev/fd/.
2235 d_symlink (d_symlink.U):
2236 This variable conditionally defines the HAS_SYMLINK symbol, which
2237 indicates to the C program that the symlink() routine is available
2238 to create symbolic links.
2240 d_syscall (d_syscall.U):
2241 This variable conditionally defines HAS_SYSCALL if syscall() is
2242 available call arbitrary system calls.
2244 d_syscallproto (d_syscallproto.U):
2245 This variable conditionally defines the HAS_SYSCALL_PROTO symbol,
2246 which indicates to the C program that the system provides
2247 a prototype for the syscall() function. Otherwise, it is
2248 up to the program to supply one.
2250 d_sysconf (d_sysconf.U):
2251 This variable conditionally defines the HAS_SYSCONF symbol, which
2252 indicates to the C program that the sysconf() routine is available
2253 to determine system related limits and options.
2255 d_sysernlst (d_strerror.U):
2256 This variable conditionally defines HAS_SYS_ERRNOLIST if sys_errnolist[]
2257 is available to translate error numbers to the symbolic name.
2259 d_syserrlst (d_strerror.U):
2260 This variable conditionally defines HAS_SYS_ERRLIST if sys_errlist[] is
2261 available to translate error numbers to strings.
2263 d_system (d_system.U):
2264 This variable conditionally defines HAS_SYSTEM if system() is
2265 available to issue a shell command.
2267 d_tcgetpgrp (d_tcgtpgrp.U):
2268 This variable conditionally defines the HAS_TCGETPGRP symbol, which
2269 indicates to the C program that the tcgetpgrp() routine is available.
2270 to get foreground process group ID.
2272 d_tcsetpgrp (d_tcstpgrp.U):
2273 This variable conditionally defines the HAS_TCSETPGRP symbol, which
2274 indicates to the C program that the tcsetpgrp() routine is available
2275 to set foreground process group ID.
2277 d_telldir (d_readdir.U):
2278 This variable conditionally defines HAS_TELLDIR if telldir() is
2281 d_telldirproto (d_telldirproto.U):
2282 This variable conditionally defines the HAS_TELLDIR_PROTO symbol,
2283 which indicates to the C program that the system provides
2284 a prototype for the telldir() function. Otherwise, it is
2285 up to the program to supply one.
2288 This variable conditionally defines the HAS_TIME symbol, which indicates
2289 that the time() routine exists. The time() routine is normaly
2290 provided on UNIX systems.
2292 d_timegm (d_timegm.U):
2293 This variable conditionally defines the HAS_TIMEGM symbol, which
2294 indicates to the C program that the timegm () routine is available.
2296 d_times (d_times.U):
2297 This variable conditionally defines the HAS_TIMES symbol, which indicates
2298 that the times() routine exists. The times() routine is normaly
2299 provided on UNIX systems. You may have to include <sys/times.h>.
2301 d_tm_tm_gmtoff (i_time.U):
2302 This variable conditionally defines HAS_TM_TM_GMTOFF, which indicates
2303 indicates to the C program that the struct tm has the tm_gmtoff field.
2305 d_tm_tm_zone (i_time.U):
2306 This variable conditionally defines HAS_TM_TM_ZONE, which indicates
2307 indicates to the C program that the struct tm has the tm_zone field.
2309 d_tmpnam_r (d_tmpnam_r.U):
2310 This variable conditionally defines the HAS_TMPNAM_R symbol,
2311 which indicates to the C program that the tmpnam_r()
2312 routine is available.
2314 d_truncate (d_truncate.U):
2315 This variable conditionally defines HAS_TRUNCATE if truncate() is
2316 available to truncate files.
2318 d_ttyname_r (d_ttyname_r.U):
2319 This variable conditionally defines the HAS_TTYNAME_R symbol,
2320 which indicates to the C program that the ttyname_r()
2321 routine is available.
2323 d_tzname (d_tzname.U):
2324 This variable conditionally defines HAS_TZNAME if tzname[] is
2325 available to access timezone names.
2327 d_u32align (d_u32align.U):
2328 This variable tells whether you must access character data
2329 through U32-aligned pointers.
2331 d_ualarm (d_ualarm.U):
2332 This variable conditionally defines the HAS_UALARM symbol, which
2333 indicates to the C program that the ualarm() routine is available.
2335 d_umask (d_umask.U):
2336 This variable conditionally defines the HAS_UMASK symbol, which
2337 indicates to the C program that the umask() routine is available.
2338 to set and get the value of the file creation mask.
2340 d_uname (d_gethname.U):
2341 This variable conditionally defines the HAS_UNAME symbol, which
2342 indicates to the C program that the uname() routine may be
2343 used to derive the host name.
2345 d_union_semun (d_union_semun.U):
2346 This variable conditionally defines HAS_UNION_SEMUN if the
2347 union semun is defined by including <sys/sem.h>.
2349 d_unordered (d_unordered.U):
2350 This variable conditionally defines the HAS_UNORDERED symbol, which
2351 indicates to the C program that the unordered() routine is available.
2353 d_unsetenv (d_unsetenv.U):
2354 This variable conditionally defines the HAS_UNSETENV symbol, which
2355 indicates to the C program that the unsetenv () routine is available.
2357 d_usleep (d_usleep.U):
2358 This variable conditionally defines HAS_USLEEP if usleep() is
2359 available to do high granularity sleeps.
2361 d_usleepproto (d_usleepproto.U):
2362 This variable conditionally defines the HAS_USLEEP_PROTO symbol,
2363 which indicates to the C program that the system provides
2364 a prototype for the usleep() function. Otherwise, it is
2365 up to the program to supply one.
2367 d_ustat (d_ustat.U):
2368 This variable conditionally defines HAS_USTAT if ustat() is
2369 available to query file system statistics by dev_t.
2371 d_vendorarch (vendorarch.U):
2372 This variable conditionally defined PERL_VENDORARCH.
2374 d_vendorbin (vendorbin.U):
2375 This variable conditionally defines PERL_VENDORBIN.
2377 d_vendorlib (vendorlib.U):
2378 This variable conditionally defines PERL_VENDORLIB.
2380 d_vendorscript (vendorscript.U):
2381 This variable conditionally defines PERL_VENDORSCRIPT.
2383 d_vfork (d_vfork.U):
2384 This variable conditionally defines the HAS_VFORK symbol, which
2385 indicates the vfork() routine is available.
2387 d_void_closedir (d_closedir.U):
2388 This variable conditionally defines VOID_CLOSEDIR if closedir()
2389 does not return a value.
2391 d_voidsig (d_voidsig.U):
2392 This variable conditionally defines VOIDSIG if this system
2393 declares "void (*signal(...))()" in signal.h. The old way was to
2394 declare it as "int (*signal(...))()".
2396 d_voidtty (i_sysioctl.U):
2397 This variable conditionally defines USE_IOCNOTTY to indicate that the
2398 ioctl() call with TIOCNOTTY should be used to void tty association.
2399 Otherwise (on USG probably), it is enough to close the standard file
2400 decriptors and do a setpgrp().
2402 d_volatile (d_volatile.U):
2403 This variable conditionally defines the HASVOLATILE symbol, which
2404 indicates to the C program that this C compiler knows about the
2405 volatile declaration.
2407 d_vprintf (d_vprintf.U):
2408 This variable conditionally defines the HAS_VPRINTF symbol, which
2409 indicates to the C program that the vprintf() routine is available
2410 to printf with a pointer to an argument list.
2412 d_vsnprintf (d_snprintf.U):
2413 This variable conditionally defines the HAS_VSNPRINTF symbol, which
2414 indicates to the C program that the vsnprintf () library function
2417 d_wait4 (d_wait4.U):
2418 This variable conditionally defines the HAS_WAIT4 symbol, which
2419 indicates the wait4() routine is available.
2421 d_waitpid (d_waitpid.U):
2422 This variable conditionally defines HAS_WAITPID if waitpid() is
2423 available to wait for child process.
2425 d_wcstombs (d_wcstombs.U):
2426 This variable conditionally defines the HAS_WCSTOMBS symbol, which
2427 indicates to the C program that the wcstombs() routine is available
2428 to convert wide character strings to multibyte strings.
2430 d_wctomb (d_wctomb.U):
2431 This variable conditionally defines the HAS_WCTOMB symbol, which
2432 indicates to the C program that the wctomb() routine is available
2433 to convert a wide character to a multibyte.
2435 d_writev (d_writev.U):
2436 This variable conditionally defines the HAS_WRITEV symbol, which
2437 indicates to the C program that the writev() routine is available.
2440 This variable conditionally defines the symbol XENIX, which alerts
2441 the C program that it runs under Xenix.
2444 This variable is used internally by Configure to determine the
2445 full pathname (if any) of the date program. After Configure runs,
2446 the value is reset to a plain "date" and is not useful.
2448 db_hashtype (i_db.U):
2449 This variable contains the type of the hash structure element
2450 in the <db.h> header file. In older versions of DB, it was
2451 int, while in newer ones it is u_int32_t.
2453 db_prefixtype (i_db.U):
2454 This variable contains the type of the prefix structure element
2455 in the <db.h> header file. In older versions of DB, it was
2456 int, while in newer ones it is size_t.
2458 db_version_major (i_db.U):
2459 This variable contains the major version number of
2460 Berkeley DB found in the <db.h> header file.
2462 db_version_minor (i_db.U):
2463 This variable contains the minor version number of
2464 Berkeley DB found in the <db.h> header file.
2465 For DB version 1 this is always 0.
2467 db_version_patch (i_db.U):
2468 This variable contains the patch version number of
2469 Berkeley DB found in the <db.h> header file.
2470 For DB version 1 this is always 0.
2472 defvoidused (voidflags.U):
2473 This variable contains the default value of the VOIDUSED symbol (15).
2475 direntrytype (i_dirent.U):
2476 This symbol is set to 'struct direct' or 'struct dirent' depending on
2477 whether dirent is available or not. You should use this pseudo type to
2478 portably declare your directory entries.
2481 This variable contains the extension that is to be used for the
2482 dynamically loaded modules that perl generaties.
2485 This variable contains the name of the dynamic loading file that
2486 will be used with the package.
2488 doublesize (doublesize.U):
2489 This variable contains the value of the DOUBLESIZE symbol, which
2490 indicates to the C program how many bytes there are in a double.
2492 drand01 (randfunc.U):
2493 Indicates the macro to be used to generate normalized
2494 random numbers. Uses randfunc, often divided by
2495 (double) (((unsigned long) 1 << randbits)) in order to
2496 normalize the result.
2497 In C programs, the macro 'Drand01' is mapped to drand01.
2499 drand48_r_proto (d_drand48_r.U):
2500 This variable encodes the prototype of drand48_r.
2501 It is zero if d_drand48_r is undef, and one of the
2502 REENTRANT_PROTO_T_ABC macros of reentr.h if d_drand48_r
2505 dtrace (usedtrace.U):
2506 This variable holds the location of the dtrace executable.
2508 dynamic_ext (Extensions.U):
2509 This variable holds a list of XS extension files we want to
2510 link dynamically into the package. It is used by Makefile.
2512 eagain (nblock_io.U):
2513 This variable bears the symbolic errno code set by read() when no
2514 data is present on the file and non-blocking I/O was enabled (otherwise,
2515 read() blocks naturally).
2518 This variable conditionally defines EBCDIC if this
2519 system uses EBCDIC encoding. Among other things, this
2520 means that the character ranges are not contiguous.
2524 This variable is used internally by Configure to determine the
2525 full pathname (if any) of the echo program. After Configure runs,
2526 the value is reset to a plain "echo" and is not useful.
2529 This variable is used internally by Configure to determine the
2530 full pathname (if any) of the egrep program. After Configure runs,
2531 the value is reset to a plain "egrep" and is not useful.
2534 This variable is defined but not used by Configure.
2535 The value is the empty string and is not useful.
2537 endgrent_r_proto (d_endgrent_r.U):
2538 This variable encodes the prototype of endgrent_r.
2539 It is zero if d_endgrent_r is undef, and one of the
2540 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endgrent_r
2543 endhostent_r_proto (d_endhostent_r.U):
2544 This variable encodes the prototype of endhostent_r.
2545 It is zero if d_endhostent_r is undef, and one of the
2546 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endhostent_r
2549 endnetent_r_proto (d_endnetent_r.U):
2550 This variable encodes the prototype of endnetent_r.
2551 It is zero if d_endnetent_r is undef, and one of the
2552 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endnetent_r
2555 endprotoent_r_proto (d_endprotoent_r.U):
2556 This variable encodes the prototype of endprotoent_r.
2557 It is zero if d_endprotoent_r is undef, and one of the
2558 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endprotoent_r
2561 endpwent_r_proto (d_endpwent_r.U):
2562 This variable encodes the prototype of endpwent_r.
2563 It is zero if d_endpwent_r is undef, and one of the
2564 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endpwent_r
2567 endservent_r_proto (d_endservent_r.U):
2568 This variable encodes the prototype of endservent_r.
2569 It is zero if d_endservent_r is undef, and one of the
2570 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endservent_r
2574 When running under Eunice this variable contains a command which will
2575 convert a shell script to the proper form of text file for it to be
2576 executable by the shell. On other systems it is a no-op.
2579 This is an old synonym for _exe.
2582 This variable is used internally by Configure to determine the
2583 full pathname (if any) of the expr program. After Configure runs,
2584 the value is reset to a plain "expr" and is not useful.
2586 extensions (Extensions.U):
2587 This variable holds a list of all extension files (both XS and
2588 non-xs linked into the package. It is propagated to Config.pm
2589 and is typically used to test whether a particular extesion
2593 ANSI C requires 'extern' where C++ requires 'extern "C"'. This
2594 variable can be used in Configure to do the right thing.
2597 This variable holds a list of extra modules to install.
2599 fflushall (fflushall.U):
2600 This symbol, if defined, tells that to flush
2601 all pending stdio output one must loop through all
2602 the stdio file handles stored in an array and fflush them.
2603 Note that if fflushNULL is defined, fflushall will not
2604 even be probed for and will be left undefined.
2606 fflushNULL (fflushall.U):
2607 This symbol, if defined, tells that fflush(NULL) does flush
2608 all pending stdio output.
2611 This variable is defined but not used by Configure.
2612 The value is the empty string and is not useful.
2614 firstmakefile (Unix.U):
2615 This variable defines the first file searched by make. On unix,
2616 it is makefile (then Makefile). On case-insensitive systems,
2617 it might be something else. This is only used to deal with
2618 convoluted make depend tricks.
2621 This variable is defined but not used by Configure.
2622 The value is the empty string and is not useful.
2624 fpossize (fpossize.U):
2625 This variable contains the size of a fpostype in bytes.
2627 fpostype (fpostype.U):
2628 This variable defines Fpos_t to be something like fpos_t, long,
2629 uint, or whatever type is used to declare file positions in libc.
2631 freetype (mallocsrc.U):
2632 This variable contains the return type of free(). It is usually
2633 void, but occasionally int.
2636 This variable contains the command used by Configure
2637 to copy files from the target host. Useful and available
2638 only during Perl build.
2639 The string ':' if not cross-compiling.
2642 This variable contains the full pathname to 'ar', whether or
2643 not the user has specified 'portability'. This is only used
2647 This variable contains the full pathname to 'csh', whether or
2648 not the user has specified 'portability'. This is only used
2649 in the compiled C program, and we assume that all systems which
2650 can share this executable will have the same full pathname to
2653 full_sed (Loc_sed.U):
2654 This variable contains the full pathname to 'sed', whether or
2655 not the user has specified 'portability'. This is only used
2656 in the compiled C program, and we assume that all systems which
2657 can share this executable will have the same full pathname to
2660 gccansipedantic (gccvers.U):
2661 If GNU cc (gcc) is used, this variable will enable (if set) the
2662 -ansi and -pedantic ccflags for building core files (through
2663 cflags script). (See Porting/pumpkin.pod for full description).
2665 gccosandvers (gccvers.U):
2666 If GNU cc (gcc) is used, this variable holds the operating system
2667 and version used to compile gcc. It is set to '' if not gcc,
2668 or if nothing useful can be parsed as the os version.
2670 gccversion (gccvers.U):
2671 If GNU cc (gcc) is used, this variable holds '1' or '2' to
2672 indicate whether the compiler is version 1 or 2. This is used in
2673 setting some of the default cflags. It is set to '' if not gcc.
2675 getgrent_r_proto (d_getgrent_r.U):
2676 This variable encodes the prototype of getgrent_r.
2677 It is zero if d_getgrent_r is undef, and one of the
2678 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrent_r
2681 getgrgid_r_proto (d_getgrgid_r.U):
2682 This variable encodes the prototype of getgrgid_r.
2683 It is zero if d_getgrgid_r is undef, and one of the
2684 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrgid_r
2687 getgrnam_r_proto (d_getgrnam_r.U):
2688 This variable encodes the prototype of getgrnam_r.
2689 It is zero if d_getgrnam_r is undef, and one of the
2690 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrnam_r
2693 gethostbyaddr_r_proto (d_gethostbyaddr_r.U):
2694 This variable encodes the prototype of gethostbyaddr_r.
2695 It is zero if d_gethostbyaddr_r is undef, and one of the
2696 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyaddr_r
2699 gethostbyname_r_proto (d_gethostbyname_r.U):
2700 This variable encodes the prototype of gethostbyname_r.
2701 It is zero if d_gethostbyname_r is undef, and one of the
2702 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyname_r
2705 gethostent_r_proto (d_gethostent_r.U):
2706 This variable encodes the prototype of gethostent_r.
2707 It is zero if d_gethostent_r is undef, and one of the
2708 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostent_r
2711 getlogin_r_proto (d_getlogin_r.U):
2712 This variable encodes the prototype of getlogin_r.
2713 It is zero if d_getlogin_r is undef, and one of the
2714 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getlogin_r
2717 getnetbyaddr_r_proto (d_getnetbyaddr_r.U):
2718 This variable encodes the prototype of getnetbyaddr_r.
2719 It is zero if d_getnetbyaddr_r is undef, and one of the
2720 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyaddr_r
2723 getnetbyname_r_proto (d_getnetbyname_r.U):
2724 This variable encodes the prototype of getnetbyname_r.
2725 It is zero if d_getnetbyname_r is undef, and one of the
2726 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyname_r
2729 getnetent_r_proto (d_getnetent_r.U):
2730 This variable encodes the prototype of getnetent_r.
2731 It is zero if d_getnetent_r is undef, and one of the
2732 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetent_r
2735 getprotobyname_r_proto (d_getprotobyname_r.U):
2736 This variable encodes the prototype of getprotobyname_r.
2737 It is zero if d_getprotobyname_r is undef, and one of the
2738 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobyname_r
2741 getprotobynumber_r_proto (d_getprotobynumber_r.U):
2742 This variable encodes the prototype of getprotobynumber_r.
2743 It is zero if d_getprotobynumber_r is undef, and one of the
2744 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobynumber_r
2747 getprotoent_r_proto (d_getprotoent_r.U):
2748 This variable encodes the prototype of getprotoent_r.
2749 It is zero if d_getprotoent_r is undef, and one of the
2750 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotoent_r
2753 getpwent_r_proto (d_getpwent_r.U):
2754 This variable encodes the prototype of getpwent_r.
2755 It is zero if d_getpwent_r is undef, and one of the
2756 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwent_r
2759 getpwnam_r_proto (d_getpwnam_r.U):
2760 This variable encodes the prototype of getpwnam_r.
2761 It is zero if d_getpwnam_r is undef, and one of the
2762 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwnam_r
2765 getpwuid_r_proto (d_getpwuid_r.U):
2766 This variable encodes the prototype of getpwuid_r.
2767 It is zero if d_getpwuid_r is undef, and one of the
2768 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwuid_r
2771 getservbyname_r_proto (d_getservbyname_r.U):
2772 This variable encodes the prototype of getservbyname_r.
2773 It is zero if d_getservbyname_r is undef, and one of the
2774 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyname_r
2777 getservbyport_r_proto (d_getservbyport_r.U):
2778 This variable encodes the prototype of getservbyport_r.
2779 It is zero if d_getservbyport_r is undef, and one of the
2780 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyport_r
2783 getservent_r_proto (d_getservent_r.U):
2784 This variable encodes the prototype of getservent_r.
2785 It is zero if d_getservent_r is undef, and one of the
2786 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservent_r
2789 getspnam_r_proto (d_getspnam_r.U):
2790 This variable encodes the prototype of getspnam_r.
2791 It is zero if d_getspnam_r is undef, and one of the
2792 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getspnam_r
2796 This variable contains the format string used for printing a Gid_t.
2798 gidsign (gidsign.U):
2799 This variable contains the signedness of a gidtype.
2800 1 for unsigned, -1 for signed.
2802 gidsize (gidsize.U):
2803 This variable contains the size of a gidtype in bytes.
2805 gidtype (gidtype.U):
2806 This variable defines Gid_t to be something like gid_t, int,
2807 ushort, or whatever type is used to declare the return type
2808 of getgid(). Typically, it is the type of group ids in the kernel.
2811 This variable holds the general path (space-separated) used to
2812 find libraries. It may contain directories that do not exist on
2813 this platform, libpth is the cleaned-up version.
2816 This variable is used internally by Configure to determine the
2817 full pathname (if any) of the gmake program. After Configure runs,
2818 the value is reset to a plain "gmake" and is not useful.
2820 gmtime_r_proto (d_gmtime_r.U):
2821 This variable encodes the prototype of gmtime_r.
2822 It is zero if d_gmtime_r is undef, and one of the
2823 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gmtime_r
2826 gnulibc_version (d_gnulibc.U):
2827 This variable contains the version number of the GNU C library.
2828 It is usually something like '2.2.5'. It is a plain '' if this
2829 is not the GNU C library, or if the version is unknown.
2832 This variable is used internally by Configure to determine the
2833 full pathname (if any) of the grep program. After Configure runs,
2834 the value is reset to a plain "grep" and is not useful.
2837 This variable contains a command that produces the text of the
2838 /etc/group file. This is normally "cat /etc/group", but can be
2839 "ypcat group" when NIS is used.
2840 On some systems, such as os390, there may be no equivalent
2841 command, in which case this variable is unset.
2843 groupstype (groupstype.U):
2844 This variable defines Groups_t to be something like gid_t, int,
2845 ushort, or whatever type is used for the second argument to
2846 getgroups() and setgroups(). Usually, this is the same as
2847 gidtype (gid_t), but sometimes it isn't.
2850 This variable is used internally by Configure to determine the
2851 full pathname (if any) of the gzip program. After Configure runs,
2852 the value is reset to a plain "gzip" and is not useful.
2854 h_fcntl (h_fcntl.U):
2855 This is variable gets set in various places to tell i_fcntl that
2856 <fcntl.h> should be included.
2858 h_sysfile (h_sysfile.U):
2859 This is variable gets set in various places to tell i_sys_file that
2860 <sys/file.h> should be included.
2863 Gives the type of hints used for previous answers. May be one of
2864 "default", "recommended" or "previous".
2867 This variable contains a command that produces the text of the
2868 /etc/hosts file. This is normally "cat /etc/hosts", but can be
2869 "ypcat hosts" when NIS is used.
2870 On some systems, such as os390, there may be no equivalent
2871 command, in which case this variable is unset.
2873 html1dir (html1dir.U):
2874 This variable contains the name of the directory in which html
2875 source pages are to be put. This directory is for pages
2876 that describe whole programs, not libraries or modules. It
2877 is intended to correspond roughly to section 1 of the Unix
2880 html1direxp (html1dir.U):
2881 This variable is the same as the html1dir variable, but is filename
2882 expanded at configuration time, for convenient use in makefiles.
2884 html3dir (html3dir.U):
2885 This variable contains the name of the directory in which html
2886 source pages are to be put. This directory is for pages
2887 that describe libraries or modules. It is intended to
2888 correspond roughly to section 3 of the Unix manuals.
2890 html3direxp (html3dir.U):
2891 This variable is the same as the html3dir variable, but is filename
2892 expanded at configuration time, for convenient use in makefiles.
2895 This variable is the size of an I16 in bytes.
2898 This variable contains the C type used for Perl's I16.
2901 This variable is the size of an I32 in bytes.
2904 This variable contains the C type used for Perl's I32.
2907 This variable is the size of an I64 in bytes.
2910 This variable contains the C type used for Perl's I64.
2913 This variable is the size of an I8 in bytes.
2916 This variable contains the C type used for Perl's I8.
2918 i_arpainet (i_arpainet.U):
2919 This variable conditionally defines the I_ARPA_INET symbol,
2920 and indicates whether a C program should include <arpa/inet.h>.
2922 i_assert (i_assert.U):
2923 This variable conditionally defines the I_ASSERT symbol, which
2924 indicates to the C program that <assert.h> exists and could be
2927 i_bsdioctl (i_sysioctl.U):
2928 This variable conditionally defines the I_SYS_BSDIOCTL symbol, which
2929 indicates to the C program that <sys/bsdioctl.h> exists and should
2932 i_crypt (i_crypt.U):
2933 This variable conditionally defines the I_CRYPT symbol, and indicates
2934 whether a C program should include <crypt.h>.
2937 This variable conditionally defines the I_DB symbol, and indicates
2938 whether a C program may include Berkeley's DB include file <db.h>.
2941 This variable conditionally defines the I_DBM symbol, which
2942 indicates to the C program that <dbm.h> exists and should
2945 i_dirent (i_dirent.U):
2946 This variable conditionally defines I_DIRENT, which indicates
2947 to the C program that it should include <dirent.h>.
2950 This variable conditionally defines the I_DLD symbol, which
2951 indicates to the C program that <dld.h> (GNU dynamic loading)
2952 exists and should be included.
2954 i_dlfcn (i_dlfcn.U):
2955 This variable conditionally defines the I_DLFCN symbol, which
2956 indicates to the C program that <dlfcn.h> exists and should
2959 i_fcntl (i_fcntl.U):
2960 This variable controls the value of I_FCNTL (which tells
2961 the C program to include <fcntl.h>).
2963 i_float (i_float.U):
2964 This variable conditionally defines the I_FLOAT symbol, and indicates
2965 whether a C program may include <float.h> to get symbols like DBL_MAX
2966 or DBL_MIN, i.e. machine dependent floating point values.
2969 This variable conditionally defines the I_FP symbol, and indicates
2970 whether a C program should include <fp.h>.
2972 i_fp_class (i_fp_class.U):
2973 This variable conditionally defines the I_FP_CLASS symbol, and indicates
2974 whether a C program should include <fp_class.h>.
2977 This variable conditionally defines the I_GDBM symbol, which
2978 indicates to the C program that <gdbm.h> exists and should
2981 i_gdbm_ndbm (i_ndbm.U):
2982 This variable conditionally defines the I_GDBM_NDBM symbol, which
2983 indicates to the C program that <gdbm-ndbm.h> exists and should
2984 be included. This is the location of the ndbm.h compatibility file
2987 i_gdbmndbm (i_ndbm.U):
2988 This variable conditionally defines the I_GDBMNDBM symbol, which
2989 indicates to the C program that <gdbm/ndbm.h> exists and should
2990 be included. This was the location of the ndbm.h compatibility file
2994 This variable conditionally defines the I_GRP symbol, and indicates
2995 whether a C program should include <grp.h>.
2997 i_ieeefp (i_ieeefp.U):
2998 This variable conditionally defines the I_IEEEFP symbol, and indicates
2999 whether a C program should include <ieeefp.h>.
3001 i_inttypes (i_inttypes.U):
3002 This variable conditionally defines the I_INTTYPES symbol,
3003 and indicates whether a C program should include <inttypes.h>.
3005 i_langinfo (i_langinfo.U):
3006 This variable conditionally defines the I_LANGINFO symbol,
3007 and indicates whether a C program should include <langinfo.h>.
3009 i_libutil (i_libutil.U):
3010 This variable conditionally defines the I_LIBUTIL symbol, and indicates
3011 whether a C program should include <libutil.h>.
3013 i_limits (i_limits.U):
3014 This variable conditionally defines the I_LIMITS symbol, and indicates
3015 whether a C program may include <limits.h> to get symbols like WORD_BIT
3018 i_locale (i_locale.U):
3019 This variable conditionally defines the I_LOCALE symbol,
3020 and indicates whether a C program should include <locale.h>.
3022 i_machcthr (i_machcthr.U):
3023 This variable conditionally defines the I_MACH_CTHREADS symbol,
3024 and indicates whether a C program should include <mach/cthreads.h>.
3026 i_malloc (i_malloc.U):
3027 This variable conditionally defines the I_MALLOC symbol, and indicates
3028 whether a C program should include <malloc.h>.
3030 i_mallocmalloc (i_mallocmalloc.U):
3031 This variable conditionally defines the I_MALLOCMALLOC symbol,
3032 and indicates whether a C program should include <malloc/malloc.h>.
3035 This variable conditionally defines the I_MATH symbol, and indicates
3036 whether a C program may include <math.h>.
3038 i_memory (i_memory.U):
3039 This variable conditionally defines the I_MEMORY symbol, and indicates
3040 whether a C program should include <memory.h>.
3042 i_mntent (i_mntent.U):
3043 This variable conditionally defines the I_MNTENT symbol, and indicates
3044 whether a C program should include <mntent.h>.
3047 This variable conditionally defines the I_NDBM symbol, which
3048 indicates to the C program that <ndbm.h> exists and should
3051 i_netdb (i_netdb.U):
3052 This variable conditionally defines the I_NETDB symbol, and indicates
3053 whether a C program should include <netdb.h>.
3055 i_neterrno (i_neterrno.U):
3056 This variable conditionally defines the I_NET_ERRNO symbol, which
3057 indicates to the C program that <net/errno.h> exists and should
3060 i_netinettcp (i_netinettcp.U):
3061 This variable conditionally defines the I_NETINET_TCP symbol,
3062 and indicates whether a C program should include <netinet/tcp.h>.
3065 This variable conditionally defines I_NETINET_IN, which indicates
3066 to the C program that it should include <netinet/in.h>. Otherwise,
3067 you may try <sys/in.h>.
3070 This variable conditionally defines the I_POLL symbol, and indicates
3071 whether a C program should include <poll.h>.
3074 This variable conditionally defines the I_PROT symbol, and indicates
3075 whether a C program should include <prot.h>.
3077 i_pthread (i_pthread.U):
3078 This variable conditionally defines the I_PTHREAD symbol,
3079 and indicates whether a C program should include <pthread.h>.
3082 This variable conditionally defines I_PWD, which indicates
3083 to the C program that it should include <pwd.h>.
3085 i_rpcsvcdbm (i_dbm.U):
3086 This variable conditionally defines the I_RPCSVC_DBM symbol, which
3087 indicates to the C program that <rpcsvc/dbm.h> exists and should
3088 be included. Some System V systems might need this instead of <dbm.h>.
3091 This variable conditionally defines the I_SFIO symbol,
3092 and indicates whether a C program should include <sfio.h>.
3094 i_sgtty (i_termio.U):
3095 This variable conditionally defines the I_SGTTY symbol, which
3096 indicates to the C program that it should include <sgtty.h> rather
3099 i_shadow (i_shadow.U):
3100 This variable conditionally defines the I_SHADOW symbol, and indicates
3101 whether a C program should include <shadow.h>.
3103 i_socks (i_socks.U):
3104 This variable conditionally defines the I_SOCKS symbol, and indicates
3105 whether a C program should include <socks.h>.
3107 i_stdarg (i_varhdr.U):
3108 This variable conditionally defines the I_STDARG symbol, which
3109 indicates to the C program that <stdarg.h> exists and should
3112 i_stddef (i_stddef.U):
3113 This variable conditionally defines the I_STDDEF symbol, which
3114 indicates to the C program that <stddef.h> exists and should
3117 i_stdlib (i_stdlib.U):
3118 This variable conditionally defines the I_STDLIB symbol, which
3119 indicates to the C program that <stdlib.h> exists and should
3122 i_string (i_string.U):
3123 This variable conditionally defines the I_STRING symbol, which
3124 indicates that <string.h> should be included rather than <strings.h>.
3126 i_sunmath (i_sunmath.U):
3127 This variable conditionally defines the I_SUNMATH symbol, and indicates
3128 whether a C program should include <sunmath.h>.
3130 i_sysaccess (i_sysaccess.U):
3131 This variable conditionally defines the I_SYS_ACCESS symbol,
3132 and indicates whether a C program should include <sys/access.h>.
3134 i_sysdir (i_sysdir.U):
3135 This variable conditionally defines the I_SYS_DIR symbol, and indicates
3136 whether a C program should include <sys/dir.h>.
3138 i_sysfile (i_sysfile.U):
3139 This variable conditionally defines the I_SYS_FILE symbol, and indicates
3140 whether a C program should include <sys/file.h> to get R_OK and friends.
3142 i_sysfilio (i_sysioctl.U):
3143 This variable conditionally defines the I_SYS_FILIO symbol, which
3144 indicates to the C program that <sys/filio.h> exists and should
3145 be included in preference to <sys/ioctl.h>.
3148 This variable conditionally defines I_SYS_IN, which indicates
3149 to the C program that it should include <sys/in.h> instead of
3152 i_sysioctl (i_sysioctl.U):
3153 This variable conditionally defines the I_SYS_IOCTL symbol, which
3154 indicates to the C program that <sys/ioctl.h> exists and should
3157 i_syslog (i_syslog.U):
3158 This variable conditionally defines the I_SYSLOG symbol,
3159 and indicates whether a C program should include <syslog.h>.
3161 i_sysmman (i_sysmman.U):
3162 This variable conditionally defines the I_SYS_MMAN symbol, and
3163 indicates whether a C program should include <sys/mman.h>.
3165 i_sysmode (i_sysmode.U):
3166 This variable conditionally defines the I_SYSMODE symbol,
3167 and indicates whether a C program should include <sys/mode.h>.
3169 i_sysmount (i_sysmount.U):
3170 This variable conditionally defines the I_SYSMOUNT symbol,
3171 and indicates whether a C program should include <sys/mount.h>.
3173 i_sysndir (i_sysndir.U):
3174 This variable conditionally defines the I_SYS_NDIR symbol, and indicates
3175 whether a C program should include <sys/ndir.h>.
3177 i_sysparam (i_sysparam.U):
3178 This variable conditionally defines the I_SYS_PARAM symbol, and indicates
3179 whether a C program should include <sys/param.h>.
3181 i_syspoll (i_syspoll.U):
3182 This variable conditionally defines the I_SYS_POLL symbol, which
3183 indicates to the C program that it should include <sys/poll.h>.
3185 i_sysresrc (i_sysresrc.U):
3186 This variable conditionally defines the I_SYS_RESOURCE symbol,
3187 and indicates whether a C program should include <sys/resource.h>.
3189 i_syssecrt (i_syssecrt.U):
3190 This variable conditionally defines the I_SYS_SECURITY symbol,
3191 and indicates whether a C program should include <sys/security.h>.
3193 i_sysselct (i_sysselct.U):
3194 This variable conditionally defines I_SYS_SELECT, which indicates
3195 to the C program that it should include <sys/select.h> in order to
3196 get the definition of struct timeval.
3198 i_syssockio (i_sysioctl.U):
3199 This variable conditionally defines I_SYS_SOCKIO to indicate to the
3200 C program that socket ioctl codes may be found in <sys/sockio.h>
3201 instead of <sys/ioctl.h>.
3203 i_sysstat (i_sysstat.U):
3204 This variable conditionally defines the I_SYS_STAT symbol,
3205 and indicates whether a C program should include <sys/stat.h>.
3207 i_sysstatfs (i_sysstatfs.U):
3208 This variable conditionally defines the I_SYSSTATFS symbol,
3209 and indicates whether a C program should include <sys/statfs.h>.
3211 i_sysstatvfs (i_sysstatvfs.U):
3212 This variable conditionally defines the I_SYSSTATVFS symbol,
3213 and indicates whether a C program should include <sys/statvfs.h>.
3215 i_systime (i_time.U):
3216 This variable conditionally defines I_SYS_TIME, which indicates
3217 to the C program that it should include <sys/time.h>.
3219 i_systimek (i_time.U):
3220 This variable conditionally defines I_SYS_TIME_KERNEL, which
3221 indicates to the C program that it should include <sys/time.h>
3222 with KERNEL defined.
3224 i_systimes (i_systimes.U):
3225 This variable conditionally defines the I_SYS_TIMES symbol, and indicates
3226 whether a C program should include <sys/times.h>.
3228 i_systypes (i_systypes.U):
3229 This variable conditionally defines the I_SYS_TYPES symbol,
3230 and indicates whether a C program should include <sys/types.h>.
3232 i_sysuio (i_sysuio.U):
3233 This variable conditionally defines the I_SYSUIO symbol, and indicates
3234 whether a C program should include <sys/uio.h>.
3236 i_sysun (i_sysun.U):
3237 This variable conditionally defines I_SYS_UN, which indicates
3238 to the C program that it should include <sys/un.h> to get UNIX
3239 domain socket definitions.
3241 i_sysutsname (i_sysutsname.U):
3242 This variable conditionally defines the I_SYSUTSNAME symbol,
3243 and indicates whether a C program should include <sys/utsname.h>.
3245 i_sysvfs (i_sysvfs.U):
3246 This variable conditionally defines the I_SYSVFS symbol,
3247 and indicates whether a C program should include <sys/vfs.h>.
3249 i_syswait (i_syswait.U):
3250 This variable conditionally defines I_SYS_WAIT, which indicates
3251 to the C program that it should include <sys/wait.h>.
3253 i_termio (i_termio.U):
3254 This variable conditionally defines the I_TERMIO symbol, which
3255 indicates to the C program that it should include <termio.h> rather
3258 i_termios (i_termio.U):
3259 This variable conditionally defines the I_TERMIOS symbol, which
3260 indicates to the C program that the POSIX <termios.h> file is
3264 This variable conditionally defines I_TIME, which indicates
3265 to the C program that it should include <time.h>.
3267 i_unistd (i_unistd.U):
3268 This variable conditionally defines the I_UNISTD symbol, and indicates
3269 whether a C program should include <unistd.h>.
3271 i_ustat (i_ustat.U):
3272 This variable conditionally defines the I_USTAT symbol, and indicates
3273 whether a C program should include <ustat.h>.
3275 i_utime (i_utime.U):
3276 This variable conditionally defines the I_UTIME symbol, and indicates
3277 whether a C program should include <utime.h>.
3279 i_values (i_values.U):
3280 This variable conditionally defines the I_VALUES symbol, and indicates
3281 whether a C program may include <values.h> to get symbols like MAXLONG
3284 i_varargs (i_varhdr.U):
3285 This variable conditionally defines I_VARARGS, which indicates
3286 to the C program that it should include <varargs.h>.
3288 i_varhdr (i_varhdr.U):
3289 Contains the name of the header to be included to get va_dcl definition.
3290 Typically one of varargs.h or stdarg.h.
3292 i_vfork (i_vfork.U):
3293 This variable conditionally defines the I_VFORK symbol, and indicates
3294 whether a C program should include vfork.h.
3296 ignore_versioned_solibs (libs.U):
3297 This variable should be non-empty if non-versioned shared
3298 libraries (libfoo.so.x.y) are to be ignored (because they
3299 cannot be linked against).
3301 inc_version_list (inc_version_list.U):
3302 This variable specifies the list of subdirectories in over
3303 which perl.c:incpush() and lib/lib.pm will automatically
3304 search when adding directories to @INC. The elements in
3305 the list are separated by spaces. This is only useful
3306 if you have a perl library directory tree structured like the
3307 default one. See INSTALL for how this works. The versioned
3308 site_perl directory was introduced in 5.005, so that is the
3309 lowest possible value.
3311 This list includes architecture-dependent directories back to
3312 version $api_versionstring (e.g. 5.5.640) and
3313 architecture-independent directories all the way back to
3316 inc_version_list_init (inc_version_list.U):
3317 This variable holds the same list as inc_version_list, but
3318 each item is enclosed in double quotes and separated by commas,
3319 suitable for use in the PERL_INC_VERSION_LIST initialization.
3322 This variable must preceed the normal include path to get hte
3323 right one, as in "$incpath/usr/include" or "$incpath/usr/lib".
3324 Value can be "" or "/bsd43" on mips.
3327 This variable is defined but not used by Configure.
3328 The value is the empty string and is not useful.
3330 initialinstalllocation (bin.U):
3331 When userelocatableinc is true, this variable holds the location
3332 that make install should copy the perl binary to, with all the
3333 run-time relocatable paths calculated from this at install time.
3334 When used, it is initialised to the original value of binexp, and
3335 then binexp is set to '.../', as the other binaries are found
3336 relative to the perl binary.
3338 installarchlib (archlib.U):
3339 This variable is really the same as archlibexp but may differ on
3340 those systems using AFS. For extra portability, only this variable
3341 should be used in makefiles.
3344 This variable is the same as binexp unless AFS is running in which case
3345 the user is explicitely prompted for it. This variable should always
3346 be used in your makefiles for maximum portability.
3348 installhtml1dir (html1dir.U):
3349 This variable is really the same as html1direxp, unless you are
3350 using a different installprefix. For extra portability, you
3351 should only use this variable within your makefiles.
3353 installhtml3dir (html3dir.U):
3354 This variable is really the same as html3direxp, unless you are
3355 using a different installprefix. For extra portability, you
3356 should only use this variable within your makefiles.
3358 installman1dir (man1dir.U):
3359 This variable is really the same as man1direxp, unless you are using
3360 AFS in which case it points to the read/write location whereas
3361 man1direxp only points to the read-only access location. For extra
3362 portability, you should only use this variable within your makefiles.
3364 installman3dir (man3dir.U):
3365 This variable is really the same as man3direxp, unless you are using
3366 AFS in which case it points to the read/write location whereas
3367 man3direxp only points to the read-only access location. For extra
3368 portability, you should only use this variable within your makefiles.
3370 installprefix (installprefix.U):
3371 This variable holds the name of the directory below which
3372 "make install" will install the package. For most users, this
3373 is the same as prefix. However, it is useful for
3374 installing the software into a different (usually temporary)
3375 location after which it can be bundled up and moved somehow
3376 to the final location specified by prefix.
3378 installprefixexp (installprefix.U):
3379 This variable holds the full absolute path of installprefix
3380 with all ~-expansion done.
3382 installprivlib (privlib.U):
3383 This variable is really the same as privlibexp but may differ on
3384 those systems using AFS. For extra portability, only this variable
3385 should be used in makefiles.
3387 installscript (scriptdir.U):
3388 This variable is usually the same as scriptdirexp, unless you are on
3389 a system running AFS, in which case they may differ slightly. You
3390 should always use this variable within your makefiles for portability.
3392 installsitearch (sitearch.U):
3393 This variable is really the same as sitearchexp but may differ on
3394 those systems using AFS. For extra portability, only this variable
3395 should be used in makefiles.
3397 installsitebin (sitebin.U):
3398 This variable is usually the same as sitebinexp, unless you are on
3399 a system running AFS, in which case they may differ slightly. You
3400 should always use this variable within your makefiles for portability.
3402 installsitehtml1dir (sitehtml1dir.U):
3403 This variable is really the same as sitehtml1direxp, unless you are using
3404 AFS in which case it points to the read/write location whereas
3405 html1direxp only points to the read-only access location. For extra
3406 portability, you should only use this variable within your makefiles.
3408 installsitehtml3dir (sitehtml3dir.U):
3409 This variable is really the same as sitehtml3direxp, unless you are using
3410 AFS in which case it points to the read/write location whereas
3411 html3direxp only points to the read-only access location. For extra
3412 portability, you should only use this variable within your makefiles.
3414 installsitelib (sitelib.U):
3415 This variable is really the same as sitelibexp but may differ on
3416 those systems using AFS. For extra portability, only this variable
3417 should be used in makefiles.
3419 installsiteman1dir (siteman1dir.U):
3420 This variable is really the same as siteman1direxp, unless you are using
3421 AFS in which case it points to the read/write location whereas
3422 man1direxp only points to the read-only access location. For extra
3423 portability, you should only use this variable within your makefiles.
3425 installsiteman3dir (siteman3dir.U):
3426 This variable is really the same as siteman3direxp, unless you are using
3427 AFS in which case it points to the read/write location whereas
3428 man3direxp only points to the read-only access location. For extra
3429 portability, you should only use this variable within your makefiles.
3431 installsitescript (sitescript.U):
3432 This variable is usually the same as sitescriptexp, unless you are on
3433 a system running AFS, in which case they may differ slightly. You
3434 should always use this variable within your makefiles for portability.
3436 installstyle (installstyle.U):
3437 This variable describes the "style" of the perl installation.
3438 This is intended to be useful for tools that need to
3439 manipulate entire perl distributions. Perl itself doesn't use
3440 this to find its libraries -- the library directories are
3441 stored directly in Config.pm. Currently, there are only two
3442 styles: "lib" and "lib/perl5". The default library locations
3443 (e.g. privlib, sitelib) are either $prefix/lib or
3444 $prefix/lib/perl5. The former is useful if $prefix is a
3445 directory dedicated to perl (e.g. /opt/perl), while the latter
3446 is useful if $prefix is shared by many packages, e.g. if
3449 Unfortunately, while this "style" variable is used to set
3450 defaults for all three directory hierarchies (core, vendor, and
3451 site), there is no guarantee that the same style is actually
3452 appropriate for all those directories. For example, $prefix
3453 might be /opt/perl, but $siteprefix might be /usr/local.
3454 (Perhaps, in retrospect, the "lib" style should never have been
3455 supported, but it did seem like a nice idea at the time.)
3457 The situation is even less clear for tools such as MakeMaker
3458 that can be used to install additional modules into
3459 non-standard places. For example, if a user intends to install
3460 a module into a private directory (perhaps by setting PREFIX on
3461 the Makefile.PL command line), then there is no reason to
3462 assume that the Configure-time $installstyle setting will be
3463 relevant for that PREFIX.
3465 This may later be extended to include other information, so
3466 be careful with pattern-matching on the results.
3468 For compatibility with perl5.005 and earlier, the default
3469 setting is based on whether or not $prefix contains the string
3472 installusrbinperl (instubperl.U):
3473 This variable tells whether Perl should be installed also as
3474 /usr/bin/perl in addition to
3477 installvendorarch (vendorarch.U):
3478 This variable is really the same as vendorarchexp but may differ on
3479 those systems using AFS. For extra portability, only this variable
3480 should be used in makefiles.
3482 installvendorbin (vendorbin.U):
3483 This variable is really the same as vendorbinexp but may differ on
3484 those systems using AFS. For extra portability, only this variable
3485 should be used in makefiles.
3487 installvendorhtml1dir (vendorhtml1dir.U):
3488 This variable is really the same as vendorhtml1direxp but may differ on
3489 those systems using AFS. For extra portability, only this variable
3490 should be used in makefiles.
3492 installvendorhtml3dir (vendorhtml3dir.U):
3493 This variable is really the same as vendorhtml3direxp but may differ on
3494 those systems using AFS. For extra portability, only this variable
3495 should be used in makefiles.
3497 installvendorlib (vendorlib.U):
3498 This variable is really the same as vendorlibexp but may differ on
3499 those systems using AFS. For extra portability, only this variable
3500 should be used in makefiles.
3502 installvendorman1dir (vendorman1dir.U):
3503 This variable is really the same as vendorman1direxp but may differ on
3504 those systems using AFS. For extra portability, only this variable
3505 should be used in makefiles.
3507 installvendorman3dir (vendorman3dir.U):
3508 This variable is really the same as vendorman3direxp but may differ on
3509 those systems using AFS. For extra portability, only this variable
3510 should be used in makefiles.
3512 installvendorscript (vendorscript.U):
3513 This variable is really the same as vendorscriptexp but may differ on
3514 those systems using AFS. For extra portability, only this variable
3515 should be used in makefiles.
3517 intsize (intsize.U):
3518 This variable contains the value of the INTSIZE symbol, which
3519 indicates to the C program how many bytes there are in an int.
3521 issymlink (issymlink.U):
3522 This variable holds the test command to test for a symbolic link
3523 (if they are supported). Typical values include 'test -h' and
3526 ivdformat (perlxvf.U):
3527 This variable contains the format string used for printing
3528 a Perl IV as a signed decimal integer.
3531 This variable is the size of an IV in bytes.
3534 This variable contains the C type used for Perl's IV.
3536 known_extensions (Extensions.U):
3537 This variable holds a list of all XS extensions included in
3541 This variable is defined but not used by Configure.
3542 The value is the empty string and is not useful.
3545 This variable indicates the program to be used to link
3546 libraries for dynamic loading. On some systems, it is 'ld'.
3547 On ELF systems, it should be $cc. Mostly, we'll try to respect
3548 the hint file setting.
3550 lddlflags (dlsrc.U):
3551 This variable contains any special flags that might need to be
3552 passed to $ld to create a shared library suitable for dynamic
3553 loading. It is up to the makefile to use it. For hpux, it
3554 should be '-b'. For sunos 4.1, it is empty.
3556 ldflags (ccflags.U):
3557 This variable contains any additional C loader flags desired by
3558 the user. It is up to the Makefile to use this.
3560 ldflags_uselargefiles (uselfs.U):
3561 This variable contains the loader flags needed by large file builds
3562 and added to ldflags by hints files.
3564 ldlibpthname (libperl.U):
3565 This variable holds the name of the shared library
3566 search path, often LD_LIBRARY_PATH. To get an empty
3567 string, the hints file must set this to 'none'.
3570 This variable is used internally by Configure to determine the
3571 full pathname (if any) of the less program. After Configure runs,
3572 the value is reset to a plain "less" and is not useful.
3575 This is an old synonym for _a.
3578 This variable contains the location of the C library.
3580 libperl (libperl.U):
3581 The perl executable is obtained by linking perlmain.c with
3582 libperl, any static extensions (usually just DynaLoader),
3583 and any other libraries needed on this system. libperl
3584 is usually libperl.a, but can also be libperl.so.xxx if
3585 the user wishes to build a perl executable with a shared
3589 This variable holds the general path (space-separated) used to find
3590 libraries. It is intended to be used by other units.
3593 This variable holds the additional libraries we want to use.
3594 It is up to the Makefile to deal with it. The list can be empty.
3597 This variable holds the directory names aka dirnames of the libraries
3598 we found and accepted, duplicates are removed.
3601 This variable holds the filenames aka basenames of the libraries
3602 we found and accepted.
3605 This variable holds the full pathnames of the libraries
3606 we found and accepted.
3609 This variable holds the directory names probed for libraries.
3611 libswanted (Myinit.U):
3612 This variable holds a list of all the libraries we want to
3613 search. The order is chosen to pick up the c library
3614 ahead of ucb or bsd libraries for SVR4.
3616 libswanted_uselargefiles (uselfs.U):
3617 This variable contains the libraries needed by large file builds
3618 and added to ldflags by hints files. It is a space separated list
3619 of the library names without the "lib" prefix or any suffix, just
3623 This variable is defined but not used by Configure.
3624 The value is the empty string and is not useful.
3627 This variable is defined but not used by Configure.
3628 The value is the empty string and is not useful.
3630 lkflags (ccflags.U):
3631 This variable contains any additional C partial linker flags desired by
3632 the user. It is up to the Makefile to use this.
3635 This variable is used internally by Configure to determine the
3636 full pathname (if any) of the ln program. After Configure runs,
3637 the value is reset to a plain "ln" and is not useful.
3640 This variable holds the name of the command to make
3641 symbolic links (if they are supported). It can be used
3642 in the Makefile. It is either 'ln -s' or 'ln'
3644 localtime_r_proto (d_localtime_r.U):
3645 This variable encodes the prototype of localtime_r.
3646 It is zero if d_localtime_r is undef, and one of the
3647 REENTRANT_PROTO_T_ABC macros of reentr.h if d_localtime_r
3650 locincpth (ccflags.U):
3651 This variable contains a list of additional directories to be
3652 searched by the compiler. The appropriate '-I' directives will
3653 be added to ccflags. This is intended to simplify setting
3654 local directories from the Configure command line.
3655 It's not much, but it parallels the loclibpth stuff in libpth.U.
3657 loclibpth (libpth.U):
3658 This variable holds the paths (space-separated) used to find local
3659 libraries. It is prepended to libpth, and is intended to be easily
3660 set from the command line.
3662 longdblsize (d_longdbl.U):
3663 This variable contains the value of the LONG_DOUBLESIZE symbol, which
3664 indicates to the C program how many bytes there are in a long double,
3665 if this system supports long doubles.
3667 longlongsize (d_longlong.U):
3668 This variable contains the value of the LONGLONGSIZE symbol, which
3669 indicates to the C program how many bytes there are in a long long,
3670 if this system supports long long.
3672 longsize (intsize.U):
3673 This variable contains the value of the LONGSIZE symbol, which
3674 indicates to the C program how many bytes there are in a long.
3677 This variable is defined but not used by Configure.
3678 The value is the empty string and is not useful.
3681 This variable is defined but not used by Configure.
3682 The value is the empty string and is not useful.
3685 This variable is used internally by Configure to determine the
3686 full pathname (if any) of the ls program. After Configure runs,
3687 the value is reset to a plain "ls" and is not useful.
3689 lseeksize (lseektype.U):
3690 This variable defines lseektype to be something like off_t, long,
3691 or whatever type is used to declare lseek offset's type in the
3692 kernel (which also appears to be lseek's return type).
3694 lseektype (lseektype.U):
3695 This variable defines lseektype to be something like off_t, long,
3696 or whatever type is used to declare lseek offset's type in the
3697 kernel (which also appears to be lseek's return type).
3700 This variable indicates that the Misc Attribute Definition code is to
3704 If the Misc Attribute Decoration is to be compiled, this variable is
3705 set to the name of the extra header files to be used, else it is ''
3708 If the Misc Attribute Decoration is to be compiled, this variable is
3709 set to the name of the extra object files to be used, else it is ''
3712 If the Misc Attribute Decoration is to be compiled, this variable is
3713 set to the name of the extra C source files to be used, else it is ''
3716 This variable is defined but not used by Configure.
3717 The value is the empty string and is not useful.
3720 This variable is defined but not used by Configure.
3721 The value is the empty string and is not useful.
3724 This variable is used internally by Configure to determine the
3725 full pathname (if any) of the make program. After Configure runs,
3726 the value is reset to a plain "make" and is not useful.
3728 make_set_make (make.U):
3729 Some versions of 'make' set the variable MAKE. Others do not.
3730 This variable contains the string to be included in Makefile.SH
3731 so that MAKE is set if needed, and not if not needed.
3732 Possible values are:
3734 make_set_make='#' # If your make program handles this for you,
3736 make_set_make="MAKE=$make" # if it doesn't.
3738 This uses a comment character so that we can distinguish a
3739 'set' value (from a previous config.sh or Configure '-D' option)
3740 from an uncomputed value.
3742 mallocobj (mallocsrc.U):
3743 This variable contains the name of the malloc.o that this package
3744 generates, if that malloc.o is preferred over the system malloc.
3745 Otherwise the value is null. This variable is intended for generating
3746 Makefiles. See mallocsrc.
3748 mallocsrc (mallocsrc.U):
3749 This variable contains the name of the malloc.c that comes with
3750 the package, if that malloc.c is preferred over the system malloc.
3751 Otherwise the value is null. This variable is intended for generating
3754 malloctype (mallocsrc.U):
3755 This variable contains the kind of ptr returned by malloc and realloc.
3757 man1dir (man1dir.U):
3758 This variable contains the name of the directory in which manual
3759 source pages are to be put. It is the responsibility of the
3760 Makefile.SH to get the value of this into the proper command.
3761 You must be prepared to do the ~name expansion yourself.
3763 man1direxp (man1dir.U):
3764 This variable is the same as the man1dir variable, but is filename
3765 expanded at configuration time, for convenient use in makefiles.
3767 man1ext (man1dir.U):
3768 This variable contains the extension that the manual page should
3769 have: one of 'n', 'l', or '1'. The Makefile must supply the '.'.
3772 man3dir (man3dir.U):
3773 This variable contains the name of the directory in which manual
3774 source pages are to be put. It is the responsibility of the
3775 Makefile.SH to get the value of this into the proper command.
3776 You must be prepared to do the ~name expansion yourself.
3778 man3direxp (man3dir.U):
3779 This variable is the same as the man3dir variable, but is filename
3780 expanded at configuration time, for convenient use in makefiles.
3782 man3ext (man3dir.U):
3783 This variable contains the extension that the manual page should
3784 have: one of 'n', 'l', or '3'. The Makefile must supply the '.'.
3787 mips_type (usrinc.U):
3788 This variable holds the environment type for the mips system.
3789 Possible values are "BSD 4.3" and "System V".
3791 mistrustnm (Csym.U):
3792 This variable can be used to establish a fallthrough for the cases
3793 where nm fails to find a symbol. If usenm is false or usenm is true
3794 and mistrustnm is false, this variable has no effect. If usenm is true
3795 and mistrustnm is "compile", a test program will be compiled to try to
3796 find any symbol that can't be located via nm lookup. If mistrustnm is
3797 "run", the test program will be run as well as being compiled.
3800 This variable is used internally by Configure to determine the
3801 full pathname (if any) of the mkdir program. After Configure runs,
3802 the value is reset to a plain "mkdir" and is not useful.
3804 mmaptype (d_mmap.U):
3805 This symbol contains the type of pointer returned by mmap()
3806 (and simultaneously the type of the first argument).
3807 It can be 'void *' or 'caddr_t'.
3809 modetype (modetype.U):
3810 This variable defines modetype to be something like mode_t,
3811 int, unsigned short, or whatever type is used to declare file
3812 modes for system calls.
3815 This variable is used internally by Configure to determine the
3816 full pathname (if any) of the more program. After Configure runs,
3817 the value is reset to a plain "more" and is not useful.
3819 multiarch (multiarch.U):
3820 This variable conditionally defines the MULTIARCH symbol
3821 which signifies the presence of multiplatform files.
3822 This is normally set by hints files.
3825 This variable is defined but not used by Configure.
3826 The value is the empty string and is not useful.
3828 myarchname (archname.U):
3829 This variable holds the architecture name computed by Configure in
3830 a previous run. It is not intended to be perused by any user and
3831 should never be set in a hint file.
3833 mydomain (myhostname.U):
3834 This variable contains the eventual value of the MYDOMAIN symbol,
3835 which is the domain of the host the program is going to run on.
3836 The domain must be appended to myhostname to form a complete host name.
3837 The dot comes with mydomain, and need not be supplied by the program.
3839 myhostname (myhostname.U):
3840 This variable contains the eventual value of the MYHOSTNAME symbol,
3841 which is the name of the host the program is going to run on.
3842 The domain is not kept with hostname, but must be gotten from mydomain.
3843 The dot comes with mydomain, and need not be supplied by the program.
3845 myuname (Oldconfig.U):
3846 The output of 'uname -a' if available, otherwise the hostname. On Xenix,
3847 pseudo variables assignments in the output are stripped, thank you. The
3848 whole thing is then lower-cased.
3851 This variable contains the '-n' flag if that is what causes the echo
3852 command to suppress newline. Otherwise it is null. Correct usage is
3853 $echo $n "prompt for a question: $c".
3855 need_va_copy (need_va_copy.U):
3856 This symbol, if defined, indicates that the system stores
3857 the variable argument list datatype, va_list, in a format
3858 that cannot be copied by simple assignment, so that some
3859 other means must be used when copying is required.
3860 As such systems vary in their provision (or non-provision)
3861 of copying mechanisms, handy.h defines a platform-
3862 independent macro, Perl_va_copy(src, dst), to do the job.
3864 netdb_hlen_type (netdbtype.U):
3865 This variable holds the type used for the 2nd argument to
3866 gethostbyaddr(). Usually, this is int or size_t or unsigned.
3867 This is only useful if you have gethostbyaddr(), naturally.
3869 netdb_host_type (netdbtype.U):
3870 This variable holds the type used for the 1st argument to
3871 gethostbyaddr(). Usually, this is char * or void *, possibly
3872 with or without a const prefix.
3873 This is only useful if you have gethostbyaddr(), naturally.
3875 netdb_name_type (netdbtype.U):
3876 This variable holds the type used for the argument to
3877 gethostbyname(). Usually, this is char * or const char *.
3878 This is only useful if you have gethostbyname(), naturally.
3880 netdb_net_type (netdbtype.U):
3881 This variable holds the type used for the 1st argument to
3882 getnetbyaddr(). Usually, this is int or long.
3883 This is only useful if you have getnetbyaddr(), naturally.
3886 This variable is used internally by Configure to determine the
3887 full pathname (if any) of the nm program. After Configure runs,
3888 the value is reset to a plain "nm" and is not useful.
3891 This variable holds the options that may be necessary for nm.
3893 nm_so_opt (usenm.U):
3894 This variable holds the options that may be necessary for nm
3895 to work on a shared library but that can not be used on an
3896 archive library. Currently, this is only used by Linux, where
3897 nm --dynamic is *required* to get symbols from an ELF library which
3898 has been stripped, but nm --dynamic is *fatal* on an archive library.
3899 Maybe Linux should just always set usenm=false.
3901 nonxs_ext (Extensions.U):
3902 This variable holds a list of all non-xs extensions included
3903 in the package. All of them will be built.
3906 This variable is used internally by Configure to determine the
3907 full pathname (if any) of the nroff program. After Configure runs,
3908 the value is reset to a plain "nroff" and is not useful.
3910 nv_overflows_integers_at (perlxv.U):
3911 This variable gives the largest integer value that NVs can hold
3912 as a constant floating point expression.
3913 If it could not be determined, it holds the value 0.
3915 nv_preserves_uv_bits (perlxv.U):
3916 This variable indicates how many of bits type uvtype
3917 a variable nvtype can preserve.
3919 nveformat (perlxvf.U):
3920 This variable contains the format string used for printing
3921 a Perl NV using %e-ish floating point format.
3923 nvEUformat (perlxvf.U):
3924 This variable contains the format string used for printing
3925 a Perl NV using %E-ish floating point format.
3927 nvfformat (perlxvf.U):
3928 This variable confains the format string used for printing
3929 a Perl NV using %f-ish floating point format.
3931 nvFUformat (perlxvf.U):
3932 This variable confains the format string used for printing
3933 a Perl NV using %F-ish floating point format.
3935 nvgformat (perlxvf.U):
3936 This variable contains the format string used for printing
3937 a Perl NV using %g-ish floating point format.
3939 nvGUformat (perlxvf.U):
3940 This variable contains the format string used for printing
3941 a Perl NV using %G-ish floating point format.
3944 This variable is the size of an NV in bytes.
3947 This variable contains the C type used for Perl's NV.
3949 o_nonblock (nblock_io.U):
3950 This variable bears the symbol value to be used during open() or fcntl()
3951 to turn on non-blocking I/O for a file descriptor. If you wish to switch
3952 between blocking and non-blocking, you may try ioctl(FIOSNBIO) instead,
3953 but that is only supported by some devices.
3956 This is an old synonym for _o.
3958 old_pthread_create_joinable (d_pthrattrj.U):
3959 This variable defines the constant to use for creating joinable
3960 (aka undetached) pthreads. Unused if pthread.h defines
3961 PTHREAD_CREATE_JOINABLE. If used, possible values are
3962 PTHREAD_CREATE_UNDETACHED and __UNDETACHED.
3964 optimize (ccflags.U):
3965 This variable contains any optimizer/debugger flag that should be used.
3966 It is up to the Makefile to use it.
3968 orderlib (orderlib.U):
3969 This variable is "true" if the components of libraries must be ordered
3970 (with `lorder $* | tsort`) before placing them in an archive. Set to
3971 "false" if ranlib or ar can generate random libraries.
3973 osname (Oldconfig.U):
3974 This variable contains the operating system name (e.g. sunos,
3975 solaris, hpux, etc.). It can be useful later on for setting
3976 defaults. Any spaces are replaced with underscores. It is set
3977 to a null string if we can't figure it out.
3979 osvers (Oldconfig.U):
3980 This variable contains the operating system version (e.g.
3981 4.1.3, 5.2, etc.). It is primarily used for helping select
3982 an appropriate hints file, but might be useful elsewhere for
3983 setting defaults. It is set to '' if we can't figure it out.
3984 We try to be flexible about how much of the version number
3985 to keep, e.g. if 4.1.1, 4.1.2, and 4.1.3 are essentially the
3986 same for this package, hints files might just be os_4.0 or
3987 os_4.1, etc., not keeping separate files for each little release.
3989 otherlibdirs (otherlibdirs.U):
3990 This variable contains a colon-separated set of paths for the perl
3991 binary to search for additional library files or modules.
3992 These directories will be tacked to the end of @INC.
3993 Perl will automatically search below each path for version-
3994 and architecture-specific directories. See inc_version_list
3996 A value of ' ' means 'none' and is used to preserve this value
3997 for the next run through Configure.
3999 package (package.U):
4000 This variable contains the name of the package being constructed.
4001 It is primarily intended for the use of later Configure units.
4004 This variable contains the name of the preferred pager on the system.
4005 Usual values are (the full pathnames of) more, less, pg, or cat.
4008 This variable contains a command that produces the text of the
4009 /etc/passwd file. This is normally "cat /etc/passwd", but can be
4010 "ypcat passwd" when NIS is used.
4011 On some systems, such as os390, there may be no equivalent
4012 command, in which case this variable is unset.
4014 patchlevel (patchlevel.U):
4015 The patchlevel level of this package.
4016 The value of patchlevel comes from the patchlevel.h file.
4017 In a version number such as 5.6.1, this is the "6".
4018 In patchlevel.h, this is referred to as "PERL_VERSION".
4021 This is an old synonym for p_ in Head.U, the character
4022 used to separate elements in the command shell search PATH.
4025 This variable is defined but not used by Configure.
4026 The value is the empty string and is not useful.
4029 This variable contains the full path (if any) to a previously
4030 installed perl5.005 or later suitable for running the script
4031 to determine inc_version_list.
4033 PERL_API_REVISION (patchlevel.h):
4034 This number describes the earliest compatible PERL_REVISION of
4035 Perl ("compatibility" here being defined as sufficient binary/API
4036 compatibility to run XS code built with the older version).
4037 Normally this does not change across maintenance releases.
4038 Please read the comment in patchlevel.h.
4040 PERL_API_SUBVERSION (patchlevel.h):
4041 This number describes the earliest compatible PERL_SUBVERSION of
4042 Perl ("compatibility" here being defined as sufficient binary/API
4043 compatibility to run XS code built with the older version).
4044 Normally this does not change across maintenance releases.
4045 Please read the comment in patchlevel.h.
4047 PERL_API_VERSION (patchlevel.h):
4048 This number describes the earliest compatible PERL_VERSION of
4049 Perl ("compatibility" here being defined as sufficient binary/API
4050 compatibility to run XS code built with the older version).
4051 Normally this does not change across maintenance releases.
4052 Please read the comment in patchlevel.h.
4054 PERL_CONFIG_SH (Oldsyms.U):
4055 This is set to 'true' in config.sh so that a shell script
4056 sourcing config.sh can tell if it has been sourced already.
4058 PERL_PATCHLEVEL (Oldsyms.U):
4059 This symbol reflects the patchlevel, if available. Will usually
4060 come from the .patch file, which is available when the perl
4061 source tree was fetched with rsync.
4063 perl_patchlevel (patchlevel.U):
4064 This is the Perl patch level, a numeric change identifier,
4065 as defined by whichever source code maintenance system
4066 is used to maintain the patches; currently Perforce.
4067 It does not correlate with the Perl version numbers or
4068 the maintenance versus development dichotomy except
4069 by also being increasing.
4071 PERL_REVISION (Oldsyms.U):
4072 In a Perl version number such as 5.6.2, this is the 5.
4073 This value is manually set in patchlevel.h
4075 PERL_SUBVERSION (Oldsyms.U):
4076 In a Perl version number such as 5.6.2, this is the 2.
4077 Values greater than 50 represent potentially unstable
4078 development subversions.
4079 This value is manually set in patchlevel.h
4081 PERL_VERSION (Oldsyms.U):
4082 In a Perl version number such as 5.6.2, this is the 6.
4083 This value is manually set in patchlevel.h
4085 perladmin (perladmin.U):
4086 Electronic mail address of the perl5 administrator.
4089 The list of libraries needed by Perl only (any libraries needed
4090 by extensions only will by dropped, if using dynamic loading).
4092 perlpath (perlpath.U):
4093 This variable contains the eventual value of the PERLPATH symbol,
4094 which contains the name of the perl interpreter to be used in
4095 shell scripts and in the "eval 'exec'" idiom. This variable is
4096 not necessarily the pathname of the file containing the perl
4097 interpreter; you must append the executable extension (_exe) if
4098 it is not already present. Note that Perl code that runs during
4099 the Perl build process cannot reference this variable, as Perl
4100 may not have been installed, or even if installed, may be a
4101 different version of Perl.
4104 This variable is used internally by Configure to determine the
4105 full pathname (if any) of the pg program. After Configure runs,
4106 the value is reset to a plain "pg" and is not useful.
4108 phostname (myhostname.U):
4109 This variable contains the eventual value of the PHOSTNAME symbol,
4110 which is a command that can be fed to popen() to get the host name.
4111 The program should probably not presume that the domain is or isn't
4114 pidtype (pidtype.U):
4115 This variable defines PIDTYPE to be something like pid_t, int,
4116 ushort, or whatever type is used to declare process ids in the kernel.
4119 Holds the private path used by Configure to find out the libraries.
4120 Its value is prepend to libpth. This variable takes care of special
4121 machines, like the mips. Usually, it should be empty.
4124 This variable is defined but not used by Configure.
4125 The value is the empty string and is not useful.
4128 This variable is defined but not used by Configure.
4129 The value is the empty string and is not useful.
4132 This variable holds the name of the directory below which the
4133 user will install the package. Usually, this is /usr/local, and
4134 executables go in /usr/local/bin, library stuff in /usr/local/lib,
4135 man pages in /usr/local/man, etc. It is only used to set defaults
4136 for things in bin.U, mansrc.U, privlib.U, or scriptdir.U.
4138 prefixexp (prefix.U):
4139 This variable holds the full absolute path of the directory below
4140 which the user will install the package. Derived from prefix.
4142 privlib (privlib.U):
4143 This variable contains the eventual value of the PRIVLIB symbol,
4144 which is the name of the private library for this package. It may
4145 have a ~ on the front. It is up to the makefile to eventually create
4146 this directory while performing installation (with ~ substitution).
4148 privlibexp (privlib.U):
4149 This variable is the ~name expanded version of privlib, so that you
4150 may use it directly in Makefiles or shell scripts.
4152 procselfexe (d_procselfexe.U):
4153 If d_procselfexe is defined, $procselfexe is the filename
4154 of the symbolic link pointing to the absolute pathname of
4155 the executing program.
4157 prototype (prototype.U):
4158 This variable holds the eventual value of CAN_PROTOTYPE, which
4159 indicates the C compiler can handle funciton prototypes.
4161 ptrsize (ptrsize.U):
4162 This variable contains the value of the PTRSIZE symbol, which
4163 indicates to the C program how many bytes there are in a pointer.
4165 quadkind (quadtype.U):
4166 This variable, if defined, encodes the type of a quad:
4167 1 = int, 2 = long, 3 = long long, 4 = int64_t.
4169 quadtype (quadtype.U):
4170 This variable defines Quad_t to be something like long, int,
4171 long long, int64_t, or whatever type is used for 64-bit integers.
4173 randbits (randfunc.U):
4174 Indicates how many bits are produced by the function used to
4175 generate normalized random numbers.
4177 randfunc (randfunc.U):
4178 Indicates the name of the random number function to use.
4179 Values include drand48, random, and rand. In C programs,
4180 the 'Drand01' macro is defined to generate uniformly distributed
4181 random numbers over the range [0., 1.[ (see drand01 and nrand).
4183 random_r_proto (d_random_r.U):
4184 This variable encodes the prototype of random_r.
4185 It is zero if d_random_r is undef, and one of the
4186 REENTRANT_PROTO_T_ABC macros of reentr.h if d_random_r
4189 randseedtype (randfunc.U):
4190 Indicates the type of the argument of the seedfunc.
4192 ranlib (orderlib.U):
4193 This variable is set to the pathname of the ranlib program, if it is
4194 needed to generate random libraries. Set to ":" if ar can generate
4195 random libraries or if random libraries are not supported
4197 rd_nodata (nblock_io.U):
4198 This variable holds the return code from read() when no data is
4199 present. It should be -1, but some systems return 0 when O_NDELAY is
4200 used, which is a shame because you cannot make the difference between
4201 no data and an EOF.. Sigh!
4203 readdir64_r_proto (d_readdir64_r.U):
4204 This variable encodes the prototype of readdir64_r.
4205 It is zero if d_readdir64_r is undef, and one of the
4206 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir64_r
4209 readdir_r_proto (d_readdir_r.U):
4210 This variable encodes the prototype of readdir_r.
4211 It is zero if d_readdir_r is undef, and one of the
4212 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir_r
4215 revision (patchlevel.U):
4216 The value of revision comes from the patchlevel.h file.
4217 In a version number such as 5.6.1, this is the "5".
4218 In patchlevel.h, this is referred to as "PERL_REVISION".
4221 This variable is used internally by Configure to determine the
4222 full pathname (if any) of the rm program. After Configure runs,
4223 the value is reset to a plain "rm" and is not useful.
4226 This is a cleanup variable for try test programs.
4227 Internal Configure use only.
4230 This variable is defined but not used by Configure.
4231 The value is the empty string and is not useful.
4234 This variable contains the command used by Configure
4235 to copy and execute a cross-compiled executable in the
4236 target host. Useful and available only during Perl build.
4237 Empty string '' if not cross-compiling.
4240 This variable contains 'true' or 'false' depending whether the
4241 nm extraction should be performed or not, according to the value
4242 of usenm and the flags on the Configure command line.
4244 sched_yield (d_pthread_y.U):
4245 This variable defines the way to yield the execution
4246 of the current thread.
4248 scriptdir (scriptdir.U):
4249 This variable holds the name of the directory in which the user wants
4250 to put publicly scripts for the package in question. It is either
4251 the same directory as for binaries, or a special one that can be
4252 mounted across different architectures, like /usr/share. Programs
4253 must be prepared to deal with ~name expansion.
4255 scriptdirexp (scriptdir.U):
4256 This variable is the same as scriptdir, but is filename expanded
4257 at configuration time, for programs not wanting to bother with it.
4260 This variable is used internally by Configure to determine the
4261 full pathname (if any) of the sed program. After Configure runs,
4262 the value is reset to a plain "sed" and is not useful.
4264 seedfunc (randfunc.U):
4265 Indicates the random number generating seed function.
4266 Values include srand48, srandom, and srand.
4268 selectminbits (selectminbits.U):
4269 This variable holds the minimum number of bits operated by select.
4270 That is, if you do select(n, ...), how many bits at least will be
4271 cleared in the masks if some activity is detected. Usually this
4272 is either n or 32*ceil(n/32), especially many little-endians do
4273 the latter. This is only useful if you have select(), naturally.
4275 selecttype (selecttype.U):
4276 This variable holds the type used for the 2nd, 3rd, and 4th
4277 arguments to select. Usually, this is 'fd_set *', if HAS_FD_SET
4278 is defined, and 'int *' otherwise. This is only useful if you
4279 have select(), naturally.
4282 This variable is defined but not used by Configure.
4283 The value is the empty string and is not useful.
4285 setgrent_r_proto (d_setgrent_r.U):
4286 This variable encodes the prototype of setgrent_r.
4287 It is zero if d_setgrent_r is undef, and one of the
4288 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setgrent_r
4291 sethostent_r_proto (d_sethostent_r.U):
4292 This variable encodes the prototype of sethostent_r.
4293 It is zero if d_sethostent_r is undef, and one of the
4294 REENTRANT_PROTO_T_ABC macros of reentr.h if d_sethostent_r
4297 setlocale_r_proto (d_setlocale_r.U):
4298 This variable encodes the prototype of setlocale_r.
4299 It is zero if d_setlocale_r is undef, and one of the
4300 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setlocale_r
4303 setnetent_r_proto (d_setnetent_r.U):
4304 This variable encodes the prototype of setnetent_r.
4305 It is zero if d_setnetent_r is undef, and one of the
4306 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setnetent_r
4309 setprotoent_r_proto (d_setprotoent_r.U):
4310 This variable encodes the prototype of setprotoent_r.
4311 It is zero if d_setprotoent_r is undef, and one of the
4312 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setprotoent_r
4315 setpwent_r_proto (d_setpwent_r.U):
4316 This variable encodes the prototype of setpwent_r.
4317 It is zero if d_setpwent_r is undef, and one of the
4318 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setpwent_r
4321 setservent_r_proto (d_setservent_r.U):
4322 This variable encodes the prototype of setservent_r.
4323 It is zero if d_setservent_r is undef, and one of the
4324 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setservent_r
4327 sGMTIME_max (time_size.U):
4328 This variable defines the maximum value of the time_t offset that
4329 the system function gmtime () accepts
4331 sGMTIME_min (time_size.U):
4332 This variable defines the minimum value of the time_t offset that
4333 the system function gmtime () accepts
4336 This variable contains the full pathname of the shell used
4337 on this system to execute Bourne shell scripts. Usually, this will be
4338 /bin/sh, though it's possible that some systems will have /bin/ksh,
4339 /bin/pdksh, /bin/ash, /bin/bash, or even something such as
4341 This unit comes before Options.U, so you can't set sh with a '-D'
4342 option, though you can override this (and startsh)
4343 with '-O -Dsh=/bin/whatever -Dstartsh=whatever'
4346 This variable is defined but not used by Configure.
4347 The value is the empty string and is not useful.
4349 sharpbang (spitshell.U):
4350 This variable contains the string #! if this system supports that
4353 shmattype (d_shmat.U):
4354 This symbol contains the type of pointer returned by shmat().
4355 It can be 'void *' or 'char *'.
4357 shortsize (intsize.U):
4358 This variable contains the value of the SHORTSIZE symbol which
4359 indicates to the C program how many bytes there are in a short.
4361 shrpenv (libperl.U):
4362 If the user builds a shared libperl.so, then we need to tell the
4363 'perl' executable where it will be able to find the installed libperl.so.
4364 One way to do this on some systems is to set the environment variable
4365 LD_RUN_PATH to the directory that will be the final location of the
4366 shared libperl.so. The makefile can use this with something like
4367 $shrpenv $(CC) -o perl perlmain.o $libperl $libs
4369 shrpenv="env LD_RUN_PATH=$archlibexp/CORE"
4372 See the main perl Makefile.SH for actual working usage.
4373 Alternatively, we might be able to use a command line option such
4374 as -R $archlibexp/CORE (Solaris) or -Wl,-rpath
4375 $archlibexp/CORE (Linux).
4377 shsharp (spitshell.U):
4378 This variable tells further Configure units whether your sh can
4381 sig_count (sig_name.U):
4382 This variable holds a number larger than the largest valid
4383 signal number. This is usually the same as the NSIG macro.
4385 sig_name (sig_name.U):
4386 This variable holds the signal names, space separated. The leading
4387 SIG in signal name is removed. A ZERO is prepended to the list.
4388 This is currently not used, sig_name_init is used instead.
4390 sig_name_init (sig_name.U):
4391 This variable holds the signal names, enclosed in double quotes and
4392 separated by commas, suitable for use in the SIG_NAME definition
4393 below. A "ZERO" is prepended to the list, and the list is
4394 terminated with a plain 0. The leading SIG in signal names
4395 is removed. See sig_num.
4397 sig_num (sig_name.U):
4398 This variable holds the signal numbers, space separated. A ZERO is
4399 prepended to the list (corresponding to the fake SIGZERO).
4400 Those numbers correspond to the value of the signal listed
4401 in the same place within the sig_name list.
4402 This is currently not used, sig_num_init is used instead.
4404 sig_num_init (sig_name.U):
4405 This variable holds the signal numbers, enclosed in double quotes and
4406 separated by commas, suitable for use in the SIG_NUM definition
4407 below. A "ZERO" is prepended to the list, and the list is
4408 terminated with a plain 0.
4410 sig_size (sig_name.U):
4411 This variable contains the number of elements of the sig_name
4414 signal_t (d_voidsig.U):
4415 This variable holds the type of the signal handler (void or int).
4417 sitearch (sitearch.U):
4418 This variable contains the eventual value of the SITEARCH symbol,
4419 which is the name of the private library for this package. It may
4420 have a ~ on the front. It is up to the makefile to eventually create
4421 this directory while performing installation (with ~ substitution).
4422 The standard distribution will put nothing in this directory.
4423 After perl has been installed, users may install their own local
4424 architecture-dependent modules in this directory with
4425 MakeMaker Makefile.PL
4426 or equivalent. See INSTALL for details.
4428 sitearchexp (sitearch.U):
4429 This variable is the ~name expanded version of sitearch, so that you
4430 may use it directly in Makefiles or shell scripts.
4432 sitebin (sitebin.U):
4433 This variable holds the name of the directory in which the user wants
4434 to put add-on publicly executable files for the package in question. It
4435 is most often a local directory such as /usr/local/bin. Programs using
4436 this variable must be prepared to deal with ~name substitution.
4437 The standard distribution will put nothing in this directory.
4438 After perl has been installed, users may install their own local
4439 executables in this directory with
4440 MakeMaker Makefile.PL
4441 or equivalent. See INSTALL for details.
4443 sitebinexp (sitebin.U):
4444 This is the same as the sitebin variable, but is filename expanded at
4445 configuration time, for use in your makefiles.
4447 sitehtml1dir (sitehtml1dir.U):
4448 This variable contains the name of the directory in which site-specific
4449 html source pages are to be put. It is the responsibility of the
4450 Makefile.SH to get the value of this into the proper command.
4451 You must be prepared to do the ~name expansion yourself.
4452 The standard distribution will put nothing in this directory.
4453 After perl has been installed, users may install their own local
4454 html pages in this directory with
4455 MakeMaker Makefile.PL
4456 or equivalent. See INSTALL for details.
4458 sitehtml1direxp (sitehtml1dir.U):
4459 This variable is the same as the sitehtml1dir variable, but is filename
4460 expanded at configuration time, for convenient use in makefiles.
4462 sitehtml3dir (sitehtml3dir.U):
4463 This variable contains the name of the directory in which site-specific
4464 library html source pages are to be put. It is the responsibility of the
4465 Makefile.SH to get the value of this into the proper command.
4466 You must be prepared to do the ~name expansion yourself.
4467 The standard distribution will put nothing in this directory.
4468 After perl has been installed, users may install their own local
4469 library html pages in this directory with
4470 MakeMaker Makefile.PL
4471 or equivalent. See INSTALL for details.
4473 sitehtml3direxp (sitehtml3dir.U):
4474 This variable is the same as the sitehtml3dir variable, but is filename
4475 expanded at configuration time, for convenient use in makefiles.
4477 sitelib (sitelib.U):
4478 This variable contains the eventual value of the SITELIB symbol,
4479 which is the name of the private library for this package. It may
4480 have a ~ on the front. It is up to the makefile to eventually create
4481 this directory while performing installation (with ~ substitution).
4482 The standard distribution will put nothing in this directory.
4483 After perl has been installed, users may install their own local
4484 architecture-independent modules in this directory with
4485 MakeMaker Makefile.PL
4486 or equivalent. See INSTALL for details.
4488 sitelib_stem (sitelib.U):
4489 This variable is $sitelibexp with any trailing version-specific component
4490 removed. The elements in inc_version_list (inc_version_list.U) can
4491 be tacked onto this variable to generate a list of directories to search.
4493 sitelibexp (sitelib.U):
4494 This variable is the ~name expanded version of sitelib, so that you
4495 may use it directly in Makefiles or shell scripts.
4497 siteman1dir (siteman1dir.U):
4498 This variable contains the name of the directory in which site-specific
4499 manual source pages are to be put. It is the responsibility of the
4500 Makefile.SH to get the value of this into the proper command.
4501 You must be prepared to do the ~name expansion yourself.
4502 The standard distribution will put nothing in this directory.
4503 After perl has been installed, users may install their own local
4504 man1 pages in this directory with
4505 MakeMaker Makefile.PL
4506 or equivalent. See INSTALL for details.
4508 siteman1direxp (siteman1dir.U):
4509 This variable is the same as the siteman1dir variable, but is filename
4510 expanded at configuration time, for convenient use in makefiles.
4512 siteman3dir (siteman3dir.U):
4513 This variable contains the name of the directory in which site-specific
4514 library man source pages are to be put. It is the responsibility of the
4515 Makefile.SH to get the value of this into the proper command.
4516 You must be prepared to do the ~name expansion yourself.
4517 The standard distribution will put nothing in this directory.
4518 After perl has been installed, users may install their own local
4519 man3 pages in this directory with
4520 MakeMaker Makefile.PL
4521 or equivalent. See INSTALL for details.
4523 siteman3direxp (siteman3dir.U):
4524 This variable is the same as the siteman3dir variable, but is filename
4525 expanded at configuration time, for convenient use in makefiles.
4527 siteprefix (siteprefix.U):
4528 This variable holds the full absolute path of the directory below
4529 which the user will install add-on packages.
4530 See INSTALL for usage and examples.
4532 siteprefixexp (siteprefix.U):
4533 This variable holds the full absolute path of the directory below
4534 which the user will install add-on packages. Derived from siteprefix.
4536 sitescript (sitescript.U):
4537 This variable holds the name of the directory in which the user wants
4538 to put add-on publicly executable files for the package in question. It
4539 is most often a local directory such as /usr/local/bin. Programs using
4540 this variable must be prepared to deal with ~name substitution.
4541 The standard distribution will put nothing in this directory.
4542 After perl has been installed, users may install their own local
4543 scripts in this directory with
4544 MakeMaker Makefile.PL
4545 or equivalent. See INSTALL for details.
4547 sitescriptexp (sitescript.U):
4548 This is the same as the sitescript variable, but is filename expanded at
4549 configuration time, for use in your makefiles.
4551 sizesize (sizesize.U):
4552 This variable contains the size of a sizetype in bytes.
4554 sizetype (sizetype.U):
4555 This variable defines sizetype to be something like size_t,
4556 unsigned long, or whatever type is used to declare length
4557 parameters for string functions.
4560 This variable is defined but not used by Configure.
4561 The value is the empty string and is not useful.
4563 sLOCALTIME_max (time_size.U):
4564 This variable defines the maximum value of the time_t offset that
4565 the system function localtime () accepts
4567 sLOCALTIME_min (time_size.U):
4568 This variable defines the minimum value of the time_t offset that
4569 the system function localtime () accepts
4572 This variable is defined but not used by Configure.
4573 The value is the empty string and is not useful.
4576 This variable holds the extension used to identify shared libraries
4577 (also known as shared objects) on the system. Usually set to 'so'.
4579 sockethdr (d_socket.U):
4580 This variable has any cpp '-I' flags needed for socket support.
4582 socketlib (d_socket.U):
4583 This variable has the names of any libraries needed for socket support.
4585 socksizetype (socksizetype.U):
4586 This variable holds the type used for the size argument
4587 for various socket calls like accept. Usual values include
4588 socklen_t, size_t, and int.
4591 This variable is used internally by Configure to determine the
4592 full pathname (if any) of the sort program. After Configure runs,
4593 the value is reset to a plain "sort" and is not useful.
4595 spackage (package.U):
4596 This variable contains the name of the package being constructed,
4597 with the first letter uppercased, i.e. suitable for starting
4600 spitshell (spitshell.U):
4601 This variable contains the command necessary to spit out a runnable
4602 shell on this system. It is either cat or a grep '-v' for # comments.
4604 sPRId64 (quadfio.U):
4605 This variable, if defined, contains the string used by stdio to
4606 format 64-bit decimal numbers (format 'd') for output.
4608 sPRIeldbl (longdblfio.U):
4609 This variable, if defined, contains the string used by stdio to
4610 format long doubles (format 'e') for output.
4612 sPRIEUldbl (longdblfio.U):
4613 This variable, if defined, contains the string used by stdio to
4614 format long doubles (format 'E') for output.
4615 The 'U' in the name is to separate this from sPRIeldbl so that even
4616 case-blind systems can see the difference.
4618 sPRIfldbl (longdblfio.U):
4619 This variable, if defined, contains the string used by stdio to
4620 format long doubles (format 'f') for output.
4622 sPRIFUldbl (longdblfio.U):
4623 This variable, if defined, contains the string used by stdio to
4624 format long doubles (format 'F') for output.
4625 The 'U' in the name is to separate this from sPRIfldbl so that even
4626 case-blind systems can see the difference.
4628 sPRIgldbl (longdblfio.U):
4629 This variable, if defined, contains the string used by stdio to
4630 format long doubles (format 'g') for output.
4632 sPRIGUldbl (longdblfio.U):
4633 This variable, if defined, contains the string used by stdio to
4634 format long doubles (format 'G') for output.
4635 The 'U' in the name is to separate this from sPRIgldbl so that even
4636 case-blind systems can see the difference.
4638 sPRIi64 (quadfio.U):
4639 This variable, if defined, contains the string used by stdio to
4640 format 64-bit decimal numbers (format 'i') for output.
4642 sPRIo64 (quadfio.U):
4643 This variable, if defined, contains the string used by stdio to
4644 format 64-bit octal numbers (format 'o') for output.
4646 sPRIu64 (quadfio.U):
4647 This variable, if defined, contains the string used by stdio to
4648 format 64-bit unsigned decimal numbers (format 'u') for output.
4650 sPRIx64 (quadfio.U):
4651 This variable, if defined, contains the string used by stdio to
4652 format 64-bit hexadecimal numbers (format 'x') for output.
4654 sPRIXU64 (quadfio.U):
4655 This variable, if defined, contains the string used by stdio to
4656 format 64-bit hExADECimAl numbers (format 'X') for output.
4657 The 'U' in the name is to separate this from sPRIx64 so that even
4658 case-blind systems can see the difference.
4660 srand48_r_proto (d_srand48_r.U):
4661 This variable encodes the prototype of srand48_r.
4662 It is zero if d_srand48_r is undef, and one of the
4663 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srand48_r
4666 srandom_r_proto (d_srandom_r.U):
4667 This variable encodes the prototype of srandom_r.
4668 It is zero if d_srandom_r is undef, and one of the
4669 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srandom_r
4673 This variable holds the (possibly relative) path of the package source.
4674 It is up to the Makefile to use this variable and set VPATH accordingly
4675 to find the sources remotely. Use $pkgsrc to have an absolute path.
4677 sSCNfldbl (longdblfio.U):
4678 This variable, if defined, contains the string used by stdio to
4679 format long doubles (format 'f') for input.
4681 ssizetype (ssizetype.U):
4682 This variable defines ssizetype to be something like ssize_t,
4683 long or int. It is used by functions that return a count
4684 of bytes or an error condition. It must be a signed type.
4685 We will pick a type such that sizeof(SSize_t) == sizeof(Size_t).
4687 startperl (startperl.U):
4688 This variable contains the string to put on the front of a perl
4689 script to make sure (hopefully) that it runs with perl and not some
4690 shell. Of course, that leading line must be followed by the classical
4692 eval 'exec perl -S $0 ${1+"$@"}'
4693 if $running_under_some_shell;
4694 to guarantee perl startup should the shell execute the script. Note
4695 that this magic incatation is not understood by csh.
4697 startsh (startsh.U):
4698 This variable contains the string to put on the front of a shell
4699 script to make sure (hopefully) that it runs with sh and not some
4702 static_ext (Extensions.U):
4703 This variable holds a list of XS extension files we want to
4704 link statically into the package. It is used by Makefile.
4706 stdchar (stdchar.U):
4707 This variable conditionally defines STDCHAR to be the type of char
4708 used in stdio.h. It has the values "unsigned char" or "char".
4710 stdio_base (d_stdstdio.U):
4711 This variable defines how, given a FILE pointer, fp, to access the
4712 _base field (or equivalent) of stdio.h's FILE structure. This will
4713 be used to define the macro FILE_base(fp).
4715 stdio_bufsiz (d_stdstdio.U):
4716 This variable defines how, given a FILE pointer, fp, to determine
4717 the number of bytes store in the I/O buffer pointer to by the
4718 _base field (or equivalent) of stdio.h's FILE structure. This will
4719 be used to define the macro FILE_bufsiz(fp).
4721 stdio_cnt (d_stdstdio.U):
4722 This variable defines how, given a FILE pointer, fp, to access the
4723 _cnt field (or equivalent) of stdio.h's FILE structure. This will
4724 be used to define the macro FILE_cnt(fp).
4726 stdio_filbuf (d_stdstdio.U):
4727 This variable defines how, given a FILE pointer, fp, to tell
4728 stdio to refill its internal buffers (?). This will
4729 be used to define the macro FILE_filbuf(fp).
4731 stdio_ptr (d_stdstdio.U):
4732 This variable defines how, given a FILE pointer, fp, to access the
4733 _ptr field (or equivalent) of stdio.h's FILE structure. This will
4734 be used to define the macro FILE_ptr(fp).
4736 stdio_stream_array (stdio_streams.U):
4737 This variable tells the name of the array holding the stdio streams.
4738 Usual values include _iob, __iob, and __sF.
4740 strerror_r_proto (d_strerror_r.U):
4741 This variable encodes the prototype of strerror_r.
4742 It is zero if d_strerror_r is undef, and one of the
4743 REENTRANT_PROTO_T_ABC macros of reentr.h if d_strerror_r
4746 strings (i_string.U):
4747 This variable holds the full path of the string header that will be
4748 used. Typically /usr/include/string.h or /usr/include/strings.h.
4751 This variable is defined but not used by Configure.
4752 The value is the empty string and is not useful.
4754 subversion (patchlevel.U):
4755 The subversion level of this package.
4756 The value of subversion comes from the patchlevel.h file.
4757 In a version number such as 5.6.1, this is the "1".
4758 In patchlevel.h, this is referred to as "PERL_SUBVERSION".
4759 This is unique to perl.
4762 This variable holds the place where the manual is located on this
4763 system. It is not the place where the user wants to put his manual
4764 pages. Rather it is the place where Configure may look to find manual
4765 for unix commands (section 1 of the manual usually). See mansrc.
4768 This variable is defined but not used by Configure.
4769 The value is the empty string and is not useful.
4772 This variable is defined but not used by Configure.
4773 The value is the empty string and is not useful.
4775 targetarch (Cross.U):
4776 If cross-compiling, this variable contains the target architecture.
4777 If not, this will be empty.
4780 This variable is defined but not used by Configure.
4781 The value is the empty string and is not useful.
4784 This variable is defined but not used by Configure.
4785 The value is the empty string and is not useful.
4788 This variable is used internally by Configure to determine the
4789 full pathname (if any) of the test program. After Configure runs,
4790 the value is reset to a plain "test" and is not useful.
4792 timeincl (i_time.U):
4793 This variable holds the full path of the included time header(s).
4795 timetype (d_time.U):
4796 This variable holds the type returned by time(). It can be long,
4797 or time_t on BSD sites (in which case <sys/types.h> should be
4798 included). Anyway, the type Time_t should be used.
4800 tmpnam_r_proto (d_tmpnam_r.U):
4801 This variable encodes the prototype of tmpnam_r.
4802 It is zero if d_tmpnam_r is undef, and one of the
4803 REENTRANT_PROTO_T_ABC macros of reentr.h if d_tmpnam_r
4807 This variable contains the command used by Configure
4808 to copy to from the target host. Useful and available
4809 only during Perl build.
4810 The string ':' if not cross-compiling.
4813 This variable is used internally by Configure to determine the
4814 full pathname (if any) of the touch program. After Configure runs,
4815 the value is reset to a plain "touch" and is not useful.
4818 This variable is used internally by Configure to determine the
4819 full pathname (if any) of the tr program. After Configure runs,
4820 the value is reset to a plain "tr" and is not useful.
4823 This variable contains the value to be passed to the tr(1)
4824 command to transliterate a newline. Typical values are
4825 '\012' and '\n'. This is needed for EBCDIC systems where
4826 newline is not necessarily '\012'.
4829 This variable is defined but not used by Configure.
4830 The value is the empty string and is not useful.
4832 ttyname_r_proto (d_ttyname_r.U):
4833 This variable encodes the prototype of ttyname_r.
4834 It is zero if d_ttyname_r is undef, and one of the
4835 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ttyname_r
4839 This variable is the size of an U16 in bytes.
4842 This variable contains the C type used for Perl's U16.
4845 This variable is the size of an U32 in bytes.
4848 This variable contains the C type used for Perl's U32.
4851 This variable is the size of an U64 in bytes.
4854 This variable contains the C type used for Perl's U64.
4857 This variable is the size of an U8 in bytes.
4860 This variable contains the C type used for Perl's U8.
4863 This variable contains the format string used for printing a Uid_t.
4865 uidsign (uidsign.U):
4866 This variable contains the signedness of a uidtype.
4867 1 for unsigned, -1 for signed.
4869 uidsize (uidsize.U):
4870 This variable contains the size of a uidtype in bytes.
4872 uidtype (uidtype.U):
4873 This variable defines Uid_t to be something like uid_t, int,
4874 ushort, or whatever type is used to declare user ids in the kernel.
4877 This variable is used internally by Configure to determine the
4878 full pathname (if any) of the uname program. After Configure runs,
4879 the value is reset to a plain "uname" and is not useful.
4882 This variable is used internally by Configure to determine the
4883 full pathname (if any) of the uniq program. After Configure runs,
4884 the value is reset to a plain "uniq" and is not useful.
4886 uquadtype (quadtype.U):
4887 This variable defines Uquad_t to be something like unsigned long,
4888 unsigned int, unsigned long long, uint64_t, or whatever type is
4889 used for 64-bit integers.
4891 use5005threads (usethreads.U):
4892 This variable conditionally defines the USE_5005THREADS symbol,
4893 and indicates that Perl should be built to use the 5.005-based
4894 threading implementation. Only valid up to 5.8.x.
4896 use64bitall (use64bits.U):
4897 This variable conditionally defines the USE_64_BIT_ALL symbol,
4898 and indicates that 64-bit integer types should be used
4899 when available. The maximal possible
4900 64-bitness is employed: LP64 or ILP64, meaning that you will
4901 be able to use more than 2 gigabytes of memory. This mode is
4902 even more binary incompatible than USE_64_BIT_INT. You may not
4903 be able to run the resulting executable in a 32-bit CPU at all or
4904 you may need at least to reboot your OS to 64-bit mode.
4906 use64bitint (use64bits.U):
4907 This variable conditionally defines the USE_64_BIT_INT symbol,
4908 and indicates that 64-bit integer types should be used
4909 when available. The minimal possible 64-bitness
4910 is employed, just enough to get 64-bit integers into Perl.
4911 This may mean using for example "long longs", while your memory
4912 may still be limited to 2 gigabytes.
4914 usecrosscompile (Cross.U):
4915 This variable conditionally defines the USE_CROSS_COMPILE symbol,
4916 and indicates that Perl has been cross-compiled.
4919 This variable indicates that Perl was configured with development
4920 features enabled. This should not be done for production builds.
4923 This variable indicates if the system supports dynamic
4924 loading of some sort. See also dlsrc and dlobj.
4926 usedtrace (usedtrace.U):
4927 This variable indicates whether we are compiling with dtrace
4928 support. See also dtrace.
4930 usefaststdio (usefaststdio.U):
4931 This variable conditionally defines the USE_FAST_STDIO symbol,
4932 and indicates that Perl should be built to use 'fast stdio'.
4933 Defaults to define in Perls 5.8 and earlier, to undef later.
4935 useithreads (usethreads.U):
4936 This variable conditionally defines the USE_ITHREADS symbol,
4937 and indicates that Perl should be built to use the interpreter-based
4938 threading implementation.
4940 uselargefiles (uselfs.U):
4941 This variable conditionally defines the USE_LARGE_FILES symbol,
4942 and indicates that large file interfaces should be used when
4945 uselongdouble (uselongdbl.U):
4946 This variable conditionally defines the USE_LONG_DOUBLE symbol,
4947 and indicates that long doubles should be used when available.
4949 usemallocwrap (mallocsrc.U):
4950 This variable contains y if we are wrapping malloc to prevent
4951 integer overflow during size calculations.
4953 usemorebits (usemorebits.U):
4954 This variable conditionally defines the USE_MORE_BITS symbol,
4955 and indicates that explicit 64-bit interfaces and long doubles
4956 should be used when available.
4958 usemultiplicity (usemultiplicity.U):
4959 This variable conditionally defines the MULTIPLICITY symbol,
4960 and indicates that Perl should be built to use multiplicity.
4962 usemymalloc (mallocsrc.U):
4963 This variable contains y if the malloc that comes with this package
4964 is desired over the system's version of malloc. People often include
4965 special versions of malloc for effiency, but such versions are often
4966 less portable. See also mallocsrc and mallocobj.
4967 If this is 'y', then -lmalloc is removed from $libs.
4970 This variable contains 'true' or 'false' depending whether the
4971 nm extraction is wanted or not.
4973 useopcode (Extensions.U):
4974 This variable holds either 'true' or 'false' to indicate
4975 whether the Opcode extension should be used. The sole
4976 use for this currently is to allow an easy mechanism
4977 for users to skip the Opcode extension from the Configure
4980 useperlio (useperlio.U):
4981 This variable conditionally defines the USE_PERLIO symbol,
4982 and indicates that the PerlIO abstraction should be
4985 useposix (Extensions.U):
4986 This variable holds either 'true' or 'false' to indicate
4987 whether the POSIX extension should be used. The sole
4988 use for this currently is to allow an easy mechanism
4989 for hints files to indicate that POSIX will not compile
4990 on a particular system.
4992 usereentrant (usethreads.U):
4993 This variable conditionally defines the USE_REENTRANT_API symbol,
4994 which indicates that the thread code may try to use the various
4995 _r versions of library functions. This is only potentially
4996 meaningful if usethreads is set and is very experimental, it is
4997 not even prompted for.
4999 userelocatableinc (bin.U):
5000 This variable is set to true to indicate that perl should relocate
5001 @INC entries at runtime based on the path to the perl binary.
5002 Any @INC paths starting ".../" are relocated relative to the directory
5003 containing the perl binary, and a logical cleanup of the path is then
5004 made around the join point (removing "dir/../" pairs)
5007 This variable is set to true when the user agrees to use sfio.
5008 It is set to false when sfio is not available or when the user
5009 explicitely requests not to use sfio. It is here primarily so
5010 that command-line settings can override the auto-detection of
5011 d_sfio without running into a "WHOA THERE".
5013 useshrplib (libperl.U):
5014 This variable is set to 'true' if the user wishes
5015 to build a shared libperl, and 'false' otherwise.
5017 usesitecustomize (d_sitecustomize.U):
5018 This variable is set to true when the user requires a mechanism that
5019 allows the sysadmin to add entries to @INC at runtime. This variable
5020 being set, makes perl run '$sitelib/sitecustomize.pl' at startup.
5022 usesocks (usesocks.U):
5023 This variable conditionally defines the USE_SOCKS symbol,
5024 and indicates that Perl should be built to use SOCKS.
5026 usethreads (usethreads.U):
5027 This variable conditionally defines the USE_THREADS symbol,
5028 and indicates that Perl should be built to use threads.
5030 usevendorprefix (vendorprefix.U):
5031 This variable tells whether the vendorprefix
5032 and consequently other vendor* paths are in use.
5034 usevfork (d_vfork.U):
5035 This variable is set to true when the user accepts to use vfork.
5036 It is set to false when no vfork is available or when the user
5037 explicitely requests not to use vfork.
5040 This variable holds the path of the include files, which is
5041 usually /usr/include. It is mainly used by other Configure units.
5044 This variable is defined but not used by Configure.
5045 The value is the empty string and is not useful.
5047 uvoformat (perlxvf.U):
5048 This variable contains the format string used for printing
5049 a Perl UV as an unsigned octal integer.
5052 This variable is the size of a UV in bytes.
5055 This variable contains the C type used for Perl's UV.
5057 uvuformat (perlxvf.U):
5058 This variable contains the format string used for printing
5059 a Perl UV as an unsigned decimal integer.
5061 uvxformat (perlxvf.U):
5062 This variable contains the format string used for printing
5063 a Perl UV as an unsigned hexadecimal integer in lowercase abcdef.
5065 uvXUformat (perlxvf.U):
5066 This variable contains the format string used for printing
5067 a Perl UV as an unsigned hexadecimal integer in uppercase ABCDEF.
5069 vendorarch (vendorarch.U):
5070 This variable contains the value of the PERL_VENDORARCH symbol.
5071 It may have a ~ on the front.
5072 The standard distribution will put nothing in this directory.
5073 Vendors who distribute perl may wish to place their own
5074 architecture-dependent modules and extensions in this directory with
5075 MakeMaker Makefile.PL INSTALLDIRS=vendor
5076 or equivalent. See INSTALL for details.
5078 vendorarchexp (vendorarch.U):
5079 This variable is the ~name expanded version of vendorarch, so that you
5080 may use it directly in Makefiles or shell scripts.
5082 vendorbin (vendorbin.U):
5083 This variable contains the eventual value of the VENDORBIN symbol.
5084 It may have a ~ on the front.
5085 The standard distribution will put nothing in this directory.
5086 Vendors who distribute perl may wish to place additional
5087 binaries in this directory with
5088 MakeMaker Makefile.PL INSTALLDIRS=vendor
5089 or equivalent. See INSTALL for details.
5091 vendorbinexp (vendorbin.U):
5092 This variable is the ~name expanded version of vendorbin, so that you
5093 may use it directly in Makefiles or shell scripts.
5095 vendorhtml1dir (vendorhtml1dir.U):
5096 This variable contains the name of the directory for html
5097 pages. It may have a ~ on the front.
5098 The standard distribution will put nothing in this directory.
5099 Vendors who distribute perl may wish to place their own
5100 html pages in this directory with
5101 MakeMaker Makefile.PL INSTALLDIRS=vendor
5102 or equivalent. See INSTALL for details.
5104 vendorhtml1direxp (vendorhtml1dir.U):
5105 This variable is the ~name expanded version of vendorhtml1dir, so that you
5106 may use it directly in Makefiles or shell scripts.
5108 vendorhtml3dir (vendorhtml3dir.U):
5109 This variable contains the name of the directory for html
5110 library pages. It may have a ~ on the front.
5111 The standard distribution will put nothing in this directory.
5112 Vendors who distribute perl may wish to place their own
5113 html pages for modules and extensions in this directory with
5114 MakeMaker Makefile.PL INSTALLDIRS=vendor
5115 or equivalent. See INSTALL for details.
5117 vendorhtml3direxp (vendorhtml3dir.U):
5118 This variable is the ~name expanded version of vendorhtml3dir, so that you
5119 may use it directly in Makefiles or shell scripts.
5121 vendorlib (vendorlib.U):
5122 This variable contains the eventual value of the VENDORLIB symbol,
5123 which is the name of the private library for this package.
5124 The standard distribution will put nothing in this directory.
5125 Vendors who distribute perl may wish to place their own
5126 modules in this directory with
5127 MakeMaker Makefile.PL INSTALLDIRS=vendor
5128 or equivalent. See INSTALL for details.
5130 vendorlib_stem (vendorlib.U):
5131 This variable is $vendorlibexp with any trailing version-specific component
5132 removed. The elements in inc_version_list (inc_version_list.U) can
5133 be tacked onto this variable to generate a list of directories to search.
5135 vendorlibexp (vendorlib.U):
5136 This variable is the ~name expanded version of vendorlib, so that you
5137 may use it directly in Makefiles or shell scripts.
5139 vendorman1dir (vendorman1dir.U):
5140 This variable contains the name of the directory for man1
5141 pages. It may have a ~ on the front.
5142 The standard distribution will put nothing in this directory.
5143 Vendors who distribute perl may wish to place their own
5144 man1 pages in this directory with
5145 MakeMaker Makefile.PL INSTALLDIRS=vendor
5146 or equivalent. See INSTALL for details.
5148 vendorman1direxp (vendorman1dir.U):
5149 This variable is the ~name expanded version of vendorman1dir, so that you
5150 may use it directly in Makefiles or shell scripts.
5152 vendorman3dir (vendorman3dir.U):
5153 This variable contains the name of the directory for man3
5154 pages. It may have a ~ on the front.
5155 The standard distribution will put nothing in this directory.
5156 Vendors who distribute perl may wish to place their own
5157 man3 pages in this directory with
5158 MakeMaker Makefile.PL INSTALLDIRS=vendor
5159 or equivalent. See INSTALL for details.
5161 vendorman3direxp (vendorman3dir.U):
5162 This variable is the ~name expanded version of vendorman3dir, so that you
5163 may use it directly in Makefiles or shell scripts.
5165 vendorprefix (vendorprefix.U):
5166 This variable holds the full absolute path of the directory below
5167 which the vendor will install add-on packages.
5168 See INSTALL for usage and examples.
5170 vendorprefixexp (vendorprefix.U):
5171 This variable holds the full absolute path of the directory below
5172 which the vendor will install add-on packages. Derived from vendorprefix.
5174 vendorscript (vendorscript.U):
5175 This variable contains the eventual value of the VENDORSCRIPT symbol.
5176 It may have a ~ on the front.
5177 The standard distribution will put nothing in this directory.
5178 Vendors who distribute perl may wish to place additional
5179 executable scripts in this directory with
5180 MakeMaker Makefile.PL INSTALLDIRS=vendor
5181 or equivalent. See INSTALL for details.
5183 vendorscriptexp (vendorscript.U):
5184 This variable is the ~name expanded version of vendorscript, so that you
5185 may use it directly in Makefiles or shell scripts.
5187 version (patchlevel.U):
5188 The full version number of this package, such as 5.6.1 (or 5_6_1).
5189 This combines revision, patchlevel, and subversion to get the
5190 full version number, including any possible subversions.
5191 This is suitable for use as a directory name, and hence is
5192 filesystem dependent.
5194 version_patchlevel_string (patchlevel.U):
5195 This is a string combining version, subversion and
5196 perl_patchlevel (if perl_patchlevel is non-zero).
5197 It is typically something like
5198 'version 7 subversion 1' or
5199 'version 7 subversion 1 patchlevel 11224'
5200 It is computed here to avoid duplication of code in myconfig.SH
5203 versiononly (versiononly.U):
5204 If set, this symbol indicates that only the version-specific
5205 components of a perl installation should be installed.
5206 This may be useful for making a test installation of a new
5207 version without disturbing the existing installation.
5208 Setting versiononly is equivalent to setting installperl's -v option.
5209 In particular, the non-versioned scripts and programs such as
5210 a2p, c2ph, h2xs, pod2*, and perldoc are not installed
5211 (see INSTALL for a more complete list). Nor are the man
5213 Usually, this is undef.
5216 This variable is defined but not used by Configure.
5217 The value is the empty string and is not useful.
5219 voidflags (voidflags.U):
5220 This variable contains the eventual value of the VOIDFLAGS symbol,
5221 which indicates how much support of the void type is given by this
5222 compiler. See VOIDFLAGS for more info.
5225 This variable holds extra path (space-separated) used to find
5226 libraries on this platform, for example CPU-specific libraries
5227 (on multi-CPU platforms) may be listed here.
5230 This variable holds the name of the compiler compiler we
5231 want to use in the Makefile. It can be yacc, byacc, or bison -y.
5234 This variable contains any additional yacc flags desired by the
5235 user. It is up to the Makefile to use this.
5238 This variable is defined but not used by Configure.
5239 The value is the empty string and is not useful.
5242 This variable is used internally by Configure to determine the
5243 full pathname (if any) of the zip program. After Configure runs,
5244 the value is reset to a plain "zip" and is not useful.