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_getcwd (d_getcwd.U):
903 This variable conditionally defines the HAS_GETCWD symbol, which
904 indicates to the C program that the getcwd() routine is available
905 to get the current working directory.
907 d_getespwnam (d_getespwnam.U):
908 This variable conditionally defines HAS_GETESPWNAM if getespwnam() is
909 available to retrieve enchanced (shadow) password entries by name.
911 d_getfsstat (d_getfsstat.U):
912 This variable conditionally defines the HAS_GETFSSTAT symbol, which
913 indicates to the C program that the getfsstat() routine is available.
915 d_getgrent (d_getgrent.U):
916 This variable conditionally defines the HAS_GETGRENT symbol, which
917 indicates to the C program that the getgrent() routine is available
918 for sequential access of the group database.
920 d_getgrent_r (d_getgrent_r.U):
921 This variable conditionally defines the HAS_GETGRENT_R symbol,
922 which indicates to the C program that the getgrent_r()
923 routine is available.
925 d_getgrgid_r (d_getgrgid_r.U):
926 This variable conditionally defines the HAS_GETGRGID_R symbol,
927 which indicates to the C program that the getgrgid_r()
928 routine is available.
930 d_getgrnam_r (d_getgrnam_r.U):
931 This variable conditionally defines the HAS_GETGRNAM_R symbol,
932 which indicates to the C program that the getgrnam_r()
933 routine is available.
935 d_getgrps (d_getgrps.U):
936 This variable conditionally defines the HAS_GETGROUPS symbol, which
937 indicates to the C program that the getgroups() routine is available
938 to get the list of process groups.
940 d_gethbyaddr (d_gethbyad.U):
941 This variable conditionally defines the HAS_GETHOSTBYADDR symbol, which
942 indicates to the C program that the gethostbyaddr() routine is available
943 to look up hosts by their IP addresses.
945 d_gethbyname (d_gethbynm.U):
946 This variable conditionally defines the HAS_GETHOSTBYNAME symbol, which
947 indicates to the C program that the gethostbyname() routine is available
948 to look up host names in some data base or other.
950 d_gethent (d_gethent.U):
951 This variable conditionally defines HAS_GETHOSTENT if gethostent() is
952 available to look up host names in some data base or another.
954 d_gethname (d_gethname.U):
955 This variable conditionally defines the HAS_GETHOSTNAME symbol, which
956 indicates to the C program that the gethostname() routine may be
957 used to derive the host name.
959 d_gethostbyaddr_r (d_gethostbyaddr_r.U):
960 This variable conditionally defines the HAS_GETHOSTBYADDR_R symbol,
961 which indicates to the C program that the gethostbyaddr_r()
962 routine is available.
964 d_gethostbyname_r (d_gethostbyname_r.U):
965 This variable conditionally defines the HAS_GETHOSTBYNAME_R symbol,
966 which indicates to the C program that the gethostbyname_r()
967 routine is available.
969 d_gethostent_r (d_gethostent_r.U):
970 This variable conditionally defines the HAS_GETHOSTENT_R symbol,
971 which indicates to the C program that the gethostent_r()
972 routine is available.
974 d_gethostprotos (d_gethostprotos.U):
975 This variable conditionally defines the HAS_GETHOST_PROTOS symbol,
976 which indicates to the C program that <netdb.h> supplies
977 prototypes for the various gethost*() functions.
978 See also netdbtype.U for probing for various netdb types.
980 d_getitimer (d_getitimer.U):
981 This variable conditionally defines the HAS_GETITIMER symbol, which
982 indicates to the C program that the getitimer() routine is available.
984 d_getlogin (d_getlogin.U):
985 This variable conditionally defines the HAS_GETLOGIN symbol, which
986 indicates to the C program that the getlogin() routine is available
987 to get the login name.
989 d_getlogin_r (d_getlogin_r.U):
990 This variable conditionally defines the HAS_GETLOGIN_R symbol,
991 which indicates to the C program that the getlogin_r()
992 routine is available.
994 d_getmnt (d_getmnt.U):
995 This variable conditionally defines the HAS_GETMNT symbol, which
996 indicates to the C program that the getmnt() routine is available
997 to retrieve one or more mount info blocks by filename.
999 d_getmntent (d_getmntent.U):
1000 This variable conditionally defines the HAS_GETMNTENT symbol, which
1001 indicates to the C program that the getmntent() routine is available
1002 to iterate through mounted files to get their mount info.
1004 d_getnbyaddr (d_getnbyad.U):
1005 This variable conditionally defines the HAS_GETNETBYADDR symbol, which
1006 indicates to the C program that the getnetbyaddr() routine is available
1007 to look up networks by their IP addresses.
1009 d_getnbyname (d_getnbynm.U):
1010 This variable conditionally defines the HAS_GETNETBYNAME symbol, which
1011 indicates to the C program that the getnetbyname() routine is available
1012 to look up networks by their names.
1014 d_getnent (d_getnent.U):
1015 This variable conditionally defines HAS_GETNETENT if getnetent() is
1016 available to look up network names in some data base or another.
1018 d_getnetbyaddr_r (d_getnetbyaddr_r.U):
1019 This variable conditionally defines the HAS_GETNETBYADDR_R symbol,
1020 which indicates to the C program that the getnetbyaddr_r()
1021 routine is available.
1023 d_getnetbyname_r (d_getnetbyname_r.U):
1024 This variable conditionally defines the HAS_GETNETBYNAME_R symbol,
1025 which indicates to the C program that the getnetbyname_r()
1026 routine is available.
1028 d_getnetent_r (d_getnetent_r.U):
1029 This variable conditionally defines the HAS_GETNETENT_R symbol,
1030 which indicates to the C program that the getnetent_r()
1031 routine is available.
1033 d_getnetprotos (d_getnetprotos.U):
1034 This variable conditionally defines the HAS_GETNET_PROTOS symbol,
1035 which indicates to the C program that <netdb.h> supplies
1036 prototypes for the various getnet*() functions.
1037 See also netdbtype.U for probing for various netdb types.
1039 d_getpagsz (d_getpagsz.U):
1040 This variable conditionally defines HAS_GETPAGESIZE if getpagesize()
1041 is available to get the system page size.
1043 d_getpbyname (d_getprotby.U):
1044 This variable conditionally defines the HAS_GETPROTOBYNAME
1045 symbol, which indicates to the C program that the
1046 getprotobyname() routine is available to look up protocols
1049 d_getpbynumber (d_getprotby.U):
1050 This variable conditionally defines the HAS_GETPROTOBYNUMBER
1051 symbol, which indicates to the C program that the
1052 getprotobynumber() routine is available to look up protocols
1055 d_getpent (d_getpent.U):
1056 This variable conditionally defines HAS_GETPROTOENT if getprotoent() is
1057 available to look up protocols in some data base or another.
1059 d_getpgid (d_getpgid.U):
1060 This variable conditionally defines the HAS_GETPGID symbol, which
1061 indicates to the C program that the getpgid(pid) function
1062 is available to get the process group id.
1064 d_getpgrp (d_getpgrp.U):
1065 This variable conditionally defines HAS_GETPGRP if getpgrp() is
1066 available to get the current process group.
1068 d_getpgrp2 (d_getpgrp2.U):
1069 This variable conditionally defines the HAS_GETPGRP2 symbol, which
1070 indicates to the C program that the getpgrp2() (as in DG/UX) routine
1071 is available to get the current process group.
1073 d_getppid (d_getppid.U):
1074 This variable conditionally defines the HAS_GETPPID symbol, which
1075 indicates to the C program that the getppid() routine is available
1076 to get the parent process ID.
1078 d_getprior (d_getprior.U):
1079 This variable conditionally defines HAS_GETPRIORITY if getpriority()
1080 is available to get a process's priority.
1082 d_getprotobyname_r (d_getprotobyname_r.U):
1083 This variable conditionally defines the HAS_GETPROTOBYNAME_R symbol,
1084 which indicates to the C program that the getprotobyname_r()
1085 routine is available.
1087 d_getprotobynumber_r (d_getprotobynumber_r.U):
1088 This variable conditionally defines the HAS_GETPROTOBYNUMBER_R symbol,
1089 which indicates to the C program that the getprotobynumber_r()
1090 routine is available.
1092 d_getprotoent_r (d_getprotoent_r.U):
1093 This variable conditionally defines the HAS_GETPROTOENT_R symbol,
1094 which indicates to the C program that the getprotoent_r()
1095 routine is available.
1097 d_getprotoprotos (d_getprotoprotos.U):
1098 This variable conditionally defines the HAS_GETPROTO_PROTOS symbol,
1099 which indicates to the C program that <netdb.h> supplies
1100 prototypes for the various getproto*() functions.
1101 See also netdbtype.U for probing for various netdb types.
1103 d_getprpwnam (d_getprpwnam.U):
1104 This variable conditionally defines HAS_GETPRPWNAM if getprpwnam() is
1105 available to retrieve protected (shadow) password entries by name.
1107 d_getpwent (d_getpwent.U):
1108 This variable conditionally defines the HAS_GETPWENT symbol, which
1109 indicates to the C program that the getpwent() routine is available
1110 for sequential access of the passwd database.
1112 d_getpwent_r (d_getpwent_r.U):
1113 This variable conditionally defines the HAS_GETPWENT_R symbol,
1114 which indicates to the C program that the getpwent_r()
1115 routine is available.
1117 d_getpwnam_r (d_getpwnam_r.U):
1118 This variable conditionally defines the HAS_GETPWNAM_R symbol,
1119 which indicates to the C program that the getpwnam_r()
1120 routine is available.
1122 d_getpwuid_r (d_getpwuid_r.U):
1123 This variable conditionally defines the HAS_GETPWUID_R symbol,
1124 which indicates to the C program that the getpwuid_r()
1125 routine is available.
1127 d_getsbyname (d_getsrvby.U):
1128 This variable conditionally defines the HAS_GETSERVBYNAME
1129 symbol, which indicates to the C program that the
1130 getservbyname() routine is available to look up services
1133 d_getsbyport (d_getsrvby.U):
1134 This variable conditionally defines the HAS_GETSERVBYPORT
1135 symbol, which indicates to the C program that the
1136 getservbyport() routine is available to look up services
1139 d_getsent (d_getsent.U):
1140 This variable conditionally defines HAS_GETSERVENT if getservent() is
1141 available to look up network services in some data base or another.
1143 d_getservbyname_r (d_getservbyname_r.U):
1144 This variable conditionally defines the HAS_GETSERVBYNAME_R symbol,
1145 which indicates to the C program that the getservbyname_r()
1146 routine is available.
1148 d_getservbyport_r (d_getservbyport_r.U):
1149 This variable conditionally defines the HAS_GETSERVBYPORT_R symbol,
1150 which indicates to the C program that the getservbyport_r()
1151 routine is available.
1153 d_getservent_r (d_getservent_r.U):
1154 This variable conditionally defines the HAS_GETSERVENT_R symbol,
1155 which indicates to the C program that the getservent_r()
1156 routine is available.
1158 d_getservprotos (d_getservprotos.U):
1159 This variable conditionally defines the HAS_GETSERV_PROTOS symbol,
1160 which indicates to the C program that <netdb.h> supplies
1161 prototypes for the various getserv*() functions.
1162 See also netdbtype.U for probing for various netdb types.
1164 d_getspnam (d_getspnam.U):
1165 This variable conditionally defines HAS_GETSPNAM if getspnam() is
1166 available to retrieve SysV shadow password entries by name.
1168 d_getspnam_r (d_getspnam_r.U):
1169 This variable conditionally defines the HAS_GETSPNAM_R symbol,
1170 which indicates to the C program that the getspnam_r()
1171 routine is available.
1173 d_gettimeod (d_ftime.U):
1174 This variable conditionally defines the HAS_GETTIMEOFDAY symbol, which
1175 indicates that the gettimeofday() system call exists (to obtain a
1176 sub-second accuracy clock). You should probably include <sys/resource.h>.
1178 d_gmtime64 (d_timefuncs64.U):
1179 This variable conditionally defines the HAS_GMTIME64 symbol, which
1180 indicates to the C program that the gmtime64 () routine is available.
1182 d_gmtime_r (d_gmtime_r.U):
1183 This variable conditionally defines the HAS_GMTIME_R symbol,
1184 which indicates to the C program that the gmtime_r()
1185 routine is available.
1187 d_gnulibc (d_gnulibc.U):
1188 Defined if we're dealing with the GNU C Library.
1190 d_grpasswd (i_grp.U):
1191 This variable conditionally defines GRPASSWD, which indicates
1192 that struct group in <grp.h> contains gr_passwd.
1194 d_hasmntopt (d_hasmntopt.U):
1195 This variable conditionally defines the HAS_HASMNTOPT symbol, which
1196 indicates to the C program that the hasmntopt() routine is available
1197 to query the mount options of file systems.
1199 d_htonl (d_htonl.U):
1200 This variable conditionally defines HAS_HTONL if htonl() and its
1201 friends are available to do network order byte swapping.
1203 d_ilogbl (d_ilogbl.U):
1204 This variable conditionally defines the HAS_ILOGBL symbol, which
1205 indicates to the C program that the ilogbl() routine is available.
1206 If scalbnl is also present we can emulate frexpl.
1208 d_inc_version_list (inc_version_list.U):
1209 This variable conditionally defines PERL_INC_VERSION_LIST.
1210 It is set to undef when PERL_INC_VERSION_LIST is empty.
1212 d_index (d_strchr.U):
1213 This variable conditionally defines HAS_INDEX if index() and
1214 rindex() are available for string searching.
1216 d_inetaton (d_inetaton.U):
1217 This variable conditionally defines the HAS_INET_ATON symbol, which
1218 indicates to the C program that the inet_aton() function is available
1219 to parse IP address "dotted-quad" strings.
1221 d_int64_t (d_int64_t.U):
1222 This symbol will be defined if the C compiler supports int64_t.
1224 d_isascii (d_isascii.U):
1225 This variable conditionally defines the HAS_ISASCII constant,
1226 which indicates to the C program that isascii() is available.
1228 d_isfinite (d_isfinite.U):
1229 This variable conditionally defines the HAS_ISFINITE symbol, which
1230 indicates to the C program that the isfinite() routine is available.
1232 d_isinf (d_isinf.U):
1233 This variable conditionally defines the HAS_ISINF symbol, which
1234 indicates to the C program that the isinf() routine is available.
1236 d_isnan (d_isnan.U):
1237 This variable conditionally defines the HAS_ISNAN symbol, which
1238 indicates to the C program that the isnan() routine is available.
1240 d_isnanl (d_isnanl.U):
1241 This variable conditionally defines the HAS_ISNANL symbol, which
1242 indicates to the C program that the isnanl() routine is available.
1244 d_killpg (d_killpg.U):
1245 This variable conditionally defines the HAS_KILLPG symbol, which
1246 indicates to the C program that the killpg() routine is available
1247 to kill process groups.
1249 d_lchown (d_lchown.U):
1250 This variable conditionally defines the HAS_LCHOWN symbol, which
1251 indicates to the C program that the lchown() routine is available
1252 to operate on a symbolic link (instead of following the link).
1254 d_ldbl_dig (d_ldbl_dig.U):
1255 This variable conditionally defines d_ldbl_dig if this system's
1256 header files provide LDBL_DIG, which is the number of significant
1257 digits in a long double precision number.
1259 d_libm_lib_version (d_libm_lib_version.U):
1260 This variable conditionally defines the LIBM_LIB_VERSION symbol,
1261 which indicates to the C program that math.h defines _LIB_VERSION
1262 being available in libm
1265 This variable conditionally defines HAS_LINK if link() is
1266 available to create hard links.
1268 d_localtime64 (d_timefuncs64.U):
1269 This variable conditionally defines the HAS_LOCALTIME64 symbol, which
1270 indicates to the C program that the localtime64 () routine is available.
1272 d_localtime_r (d_localtime_r.U):
1273 This variable conditionally defines the HAS_LOCALTIME_R symbol,
1274 which indicates to the C program that the localtime_r()
1275 routine is available.
1277 d_localtime_r_needs_tzset (d_localtime_r.U):
1278 This variable conditionally defines the LOCALTIME_R_NEEDS_TZSET
1279 symbol, which makes us call tzset before localtime_r()
1281 d_locconv (d_locconv.U):
1282 This variable conditionally defines HAS_LOCALECONV if localeconv() is
1283 available for numeric and monetary formatting conventions.
1285 d_lockf (d_lockf.U):
1286 This variable conditionally defines HAS_LOCKF if lockf() is
1287 available to do file locking.
1289 d_longdbl (d_longdbl.U):
1290 This variable conditionally defines HAS_LONG_DOUBLE if
1291 the long double type is supported.
1293 d_longlong (d_longlong.U):
1294 This variable conditionally defines HAS_LONG_LONG if
1295 the long long type is supported.
1297 d_lseekproto (d_lseekproto.U):
1298 This variable conditionally defines the HAS_LSEEK_PROTO symbol,
1299 which indicates to the C program that the system provides
1300 a prototype for the lseek() function. Otherwise, it is
1301 up to the program to supply one.
1303 d_lstat (d_lstat.U):
1304 This variable conditionally defines HAS_LSTAT if lstat() is
1305 available to do file stats on symbolic links.
1307 d_madvise (d_madvise.U):
1308 This variable conditionally defines HAS_MADVISE if madvise() is
1309 available to map a file into memory.
1311 d_malloc_good_size (d_malloc_size.U):
1312 This symbol, if defined, indicates that the malloc_good_size
1313 routine is available for use.
1315 d_malloc_size (d_malloc_size.U):
1316 This symbol, if defined, indicates that the malloc_size
1317 routine is available for use.
1319 d_mblen (d_mblen.U):
1320 This variable conditionally defines the HAS_MBLEN symbol, which
1321 indicates to the C program that the mblen() routine is available
1322 to find the number of bytes in a multibye character.
1324 d_mbstowcs (d_mbstowcs.U):
1325 This variable conditionally defines the HAS_MBSTOWCS symbol, which
1326 indicates to the C program that the mbstowcs() routine is available
1327 to convert a multibyte string into a wide character string.
1329 d_mbtowc (d_mbtowc.U):
1330 This variable conditionally defines the HAS_MBTOWC symbol, which
1331 indicates to the C program that the mbtowc() routine is available
1332 to convert multibyte to a wide character.
1334 d_memchr (d_memchr.U):
1335 This variable conditionally defines the HAS_MEMCHR symbol, which
1336 indicates to the C program that the memchr() routine is available
1337 to locate characters within a C string.
1339 d_memcmp (d_memcmp.U):
1340 This variable conditionally defines the HAS_MEMCMP symbol, which
1341 indicates to the C program that the memcmp() routine is available
1342 to compare blocks of memory.
1344 d_memcpy (d_memcpy.U):
1345 This variable conditionally defines the HAS_MEMCPY symbol, which
1346 indicates to the C program that the memcpy() routine is available
1347 to copy blocks of memory.
1349 d_memmove (d_memmove.U):
1350 This variable conditionally defines the HAS_MEMMOVE symbol, which
1351 indicates to the C program that the memmove() routine is available
1352 to copy potentatially overlapping blocks of memory.
1354 d_memset (d_memset.U):
1355 This variable conditionally defines the HAS_MEMSET symbol, which
1356 indicates to the C program that the memset() routine is available
1357 to set blocks of memory.
1359 d_mkdir (d_mkdir.U):
1360 This variable conditionally defines the HAS_MKDIR symbol, which
1361 indicates to the C program that the mkdir() routine is available
1362 to create directories..
1364 d_mkdtemp (d_mkdtemp.U):
1365 This variable conditionally defines the HAS_MKDTEMP symbol, which
1366 indicates to the C program that the mkdtemp() routine is available
1367 to exclusively create a uniquely named temporary directory.
1369 d_mkfifo (d_mkfifo.U):
1370 This variable conditionally defines the HAS_MKFIFO symbol, which
1371 indicates to the C program that the mkfifo() routine is available.
1373 d_mkstemp (d_mkstemp.U):
1374 This variable conditionally defines the HAS_MKSTEMP symbol, which
1375 indicates to the C program that the mkstemp() routine is available
1376 to exclusively create and open a uniquely named temporary file.
1378 d_mkstemps (d_mkstemps.U):
1379 This variable conditionally defines the HAS_MKSTEMPS symbol, which
1380 indicates to the C program that the mkstemps() routine is available
1381 to exclusively create and open a uniquely named (with a suffix)
1384 d_mktime (d_mktime.U):
1385 This variable conditionally defines the HAS_MKTIME symbol, which
1386 indicates to the C program that the mktime() routine is available.
1388 d_mktime64 (d_timefuncs64.U):
1389 This variable conditionally defines the HAS_MKTIME64 symbol, which
1390 indicates to the C program that the mktime64 () routine is available.
1393 This variable conditionally defines HAS_MMAP if mmap() is
1394 available to map a file into memory.
1396 d_modfl (d_modfl.U):
1397 This variable conditionally defines the HAS_MODFL symbol, which
1398 indicates to the C program that the modfl() routine is available.
1400 d_modfl_pow32_bug (d_modfl.U):
1401 This variable conditionally defines the HAS_MODFL_POW32_BUG symbol,
1402 which indicates that modfl() is broken for long doubles >= pow(2, 32).
1403 For example from 4294967303.150000 one would get 4294967302.000000
1404 and 1.150000. The bug has been seen in certain versions of glibc,
1405 release 2.2.2 is known to be okay.
1407 d_modflproto (d_modfl.U):
1408 This symbol, if defined, indicates that the system provides
1409 a prototype for the modfl() function. Otherwise, it is up
1410 to the program to supply one. C99 says it should be
1411 long double modfl(long double, long double *);
1413 d_mprotect (d_mprotect.U):
1414 This variable conditionally defines HAS_MPROTECT if mprotect() is
1415 available to modify the access protection of a memory mapped file.
1418 This variable conditionally defines the HAS_MSG symbol, which
1419 indicates that the entire msg*(2) library is present.
1421 d_msg_ctrunc (d_socket.U):
1422 This variable conditionally defines the HAS_MSG_CTRUNC symbol,
1423 which indicates that the MSG_CTRUNC is available. #ifdef is
1424 not enough because it may be an enum, glibc has been known to do this.
1426 d_msg_dontroute (d_socket.U):
1427 This variable conditionally defines the HAS_MSG_DONTROUTE symbol,
1428 which indicates that the MSG_DONTROUTE is available. #ifdef is
1429 not enough because it may be an enum, glibc has been known to do this.
1431 d_msg_oob (d_socket.U):
1432 This variable conditionally defines the HAS_MSG_OOB symbol,
1433 which indicates that the MSG_OOB is available. #ifdef is
1434 not enough because it may be an enum, glibc has been known to do this.
1436 d_msg_peek (d_socket.U):
1437 This variable conditionally defines the HAS_MSG_PEEK symbol,
1438 which indicates that the MSG_PEEK is available. #ifdef is
1439 not enough because it may be an enum, glibc has been known to do this.
1441 d_msg_proxy (d_socket.U):
1442 This variable conditionally defines the HAS_MSG_PROXY symbol,
1443 which indicates that the MSG_PROXY is available. #ifdef is
1444 not enough because it may be an enum, glibc has been known to do this.
1446 d_msgctl (d_msgctl.U):
1447 This variable conditionally defines the HAS_MSGCTL symbol, which
1448 indicates to the C program that the msgctl() routine is available.
1450 d_msgget (d_msgget.U):
1451 This variable conditionally defines the HAS_MSGGET symbol, which
1452 indicates to the C program that the msgget() routine is available.
1454 d_msghdr_s (d_msghdr_s.U):
1455 This variable conditionally defines the HAS_STRUCT_MSGHDR symbol,
1456 which indicates that the struct msghdr is supported.
1458 d_msgrcv (d_msgrcv.U):
1459 This variable conditionally defines the HAS_MSGRCV symbol, which
1460 indicates to the C program that the msgrcv() routine is available.
1462 d_msgsnd (d_msgsnd.U):
1463 This variable conditionally defines the HAS_MSGSND symbol, which
1464 indicates to the C program that the msgsnd() routine is available.
1466 d_msync (d_msync.U):
1467 This variable conditionally defines HAS_MSYNC if msync() is
1468 available to synchronize a mapped file.
1470 d_munmap (d_munmap.U):
1471 This variable conditionally defines HAS_MUNMAP if munmap() is
1472 available to unmap a region mapped by mmap().
1474 d_mymalloc (mallocsrc.U):
1475 This variable conditionally defines MYMALLOC in case other parts
1476 of the source want to take special action if MYMALLOC is used.
1477 This may include different sorts of profiling or error detection.
1480 This variable conditionally defines the HAS_NDBM symbol, which
1481 indicates that both the ndbm.h include file and an appropriate ndbm
1482 library exist. Consult the different i_*ndbm variables
1483 to find out the actual include location. Sometimes, a system has the
1484 header file but not the library. This variable will only be set if
1485 the system has both.
1487 d_ndbm_h_uses_prototypes (i_ndbm.U):
1488 This variable conditionally defines the NDBM_H_USES_PROTOTYPES symbol,
1489 which indicates that the ndbm.h include file uses real ANSI C
1490 prototypes instead of K&R style function declarations. K&R style
1491 declarations are unsupported in C++, so the include file requires
1492 special handling when using a C++ compiler and this variable is
1493 undefined. Consult the different d_*ndbm_h_uses_prototypes variables
1494 to get the same information for alternative ndbm.h include files.
1497 This variable conditionally defines the HAS_NICE symbol, which
1498 indicates to the C program that the nice() routine is available.
1500 d_nl_langinfo (d_nl_langinfo.U):
1501 This variable conditionally defines the HAS_NL_LANGINFO symbol, which
1502 indicates to the C program that the nl_langinfo() routine is available.
1504 d_nv_preserves_uv (perlxv.U):
1505 This variable indicates whether a variable of type nvtype
1506 can preserve all the bits a variable of type uvtype.
1508 d_nv_zero_is_allbits_zero (perlxv.U):
1509 This variable indicates whether a variable of type nvtype
1510 stores 0.0 in memory as all bits zero.
1512 d_off64_t (d_off64_t.U):
1513 This symbol will be defined if the C compiler supports off64_t.
1515 d_old_pthread_create_joinable (d_pthrattrj.U):
1516 This variable conditionally defines pthread_create_joinable.
1517 undef if pthread.h defines PTHREAD_CREATE_JOINABLE.
1519 d_oldpthreads (usethreads.U):
1520 This variable conditionally defines the OLD_PTHREADS_API symbol,
1521 and indicates that Perl should be built to use the old
1522 draft POSIX threads API. This is only potentially meaningful if
1525 d_oldsock (d_socket.U):
1526 This variable conditionally defines the OLDSOCKET symbol, which
1527 indicates that the BSD socket interface is based on 4.1c and not 4.2.
1529 d_open3 (d_open3.U):
1530 This variable conditionally defines the HAS_OPEN3 manifest constant,
1531 which indicates to the C program that the 3 argument version of
1532 the open(2) function is available.
1534 d_pathconf (d_pathconf.U):
1535 This variable conditionally defines the HAS_PATHCONF symbol, which
1536 indicates to the C program that the pathconf() routine is available
1537 to determine file-system related limits and options associated
1538 with a given filename.
1540 d_pause (d_pause.U):
1541 This variable conditionally defines the HAS_PAUSE symbol, which
1542 indicates to the C program that the pause() routine is available
1543 to suspend a process until a signal is received.
1545 d_perl_otherlibdirs (otherlibdirs.U):
1546 This variable conditionally defines PERL_OTHERLIBDIRS, which
1547 contains a colon-separated set of paths for the perl binary to
1548 include in @INC. See also otherlibdirs.
1550 d_phostname (d_gethname.U):
1551 This variable conditionally defines the HAS_PHOSTNAME symbol, which
1552 contains the shell command which, when fed to popen(), may be
1553 used to derive the host name.
1556 This variable conditionally defines the HAS_PIPE symbol, which
1557 indicates to the C program that the pipe() routine is available
1558 to create an inter-process channel.
1561 This variable conditionally defines the HAS_POLL symbol, which
1562 indicates to the C program that the poll() routine is available
1563 to poll active file descriptors.
1565 d_portable (d_portable.U):
1566 This variable conditionally defines the PORTABLE symbol, which
1567 indicates to the C program that it should not assume that it is
1568 running on the machine it was compiled on.
1570 d_PRId64 (quadfio.U):
1571 This variable conditionally defines the PERL_PRId64 symbol, which
1572 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1574 d_PRIeldbl (longdblfio.U):
1575 This variable conditionally defines the PERL_PRIfldbl symbol, which
1576 indiciates that stdio has a symbol to print long doubles.
1578 d_PRIEUldbl (longdblfio.U):
1579 This variable conditionally defines the PERL_PRIfldbl symbol, which
1580 indiciates that stdio has a symbol to print long doubles.
1581 The 'U' in the name is to separate this from d_PRIeldbl so that even
1582 case-blind systems can see the difference.
1584 d_PRIfldbl (longdblfio.U):
1585 This variable conditionally defines the PERL_PRIfldbl symbol, which
1586 indiciates that stdio has a symbol to print long doubles.
1588 d_PRIFUldbl (longdblfio.U):
1589 This variable conditionally defines the PERL_PRIfldbl symbol, which
1590 indiciates that stdio has a symbol to print long doubles.
1591 The 'U' in the name is to separate this from d_PRIfldbl so that even
1592 case-blind systems can see the difference.
1594 d_PRIgldbl (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_PRIGUldbl (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_PRIgldbl so that even
1602 case-blind systems can see the difference.
1604 d_PRIi64 (quadfio.U):
1605 This variable conditionally defines the PERL_PRIi64 symbol, which
1606 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1608 d_printf_format_null (d_attribut.U):
1609 This variable conditionally defines PRINTF_FORMAT_NULL_OK, which
1610 indicates the C compiler allows printf-like formats to be null.
1612 d_PRIo64 (quadfio.U):
1613 This variable conditionally defines the PERL_PRIo64 symbol, which
1614 indiciates that stdio has a symbol to print 64-bit octal numbers.
1616 d_PRIu64 (quadfio.U):
1617 This variable conditionally defines the PERL_PRIu64 symbol, which
1618 indiciates that stdio has a symbol to print 64-bit unsigned decimal
1621 d_PRIx64 (quadfio.U):
1622 This variable conditionally defines the PERL_PRIx64 symbol, which
1623 indiciates that stdio has a symbol to print 64-bit hexadecimal numbers.
1625 d_PRIXU64 (quadfio.U):
1626 This variable conditionally defines the PERL_PRIXU64 symbol, which
1627 indiciates that stdio has a symbol to print 64-bit hExADECimAl numbers.
1628 The 'U' in the name is to separate this from d_PRIx64 so that even
1629 case-blind systems can see the difference.
1631 d_procselfexe (d_procselfexe.U):
1632 Defined if $procselfexe is symlink to the absolute
1633 pathname of the executing program.
1635 d_pseudofork (d_vfork.U):
1636 This variable conditionally defines the HAS_PSEUDOFORK symbol,
1637 which indicates that an emulation of the fork routine is available.
1639 d_pthread_atfork (d_pthread_atfork.U):
1640 This variable conditionally defines the HAS_PTHREAD_ATFORK symbol,
1641 which indicates to the C program that the pthread_atfork()
1642 routine is available.
1644 d_pthread_attr_setscope (d_pthread_attr_ss.U):
1645 This variable conditionally defines HAS_PTHREAD_ATTR_SETSCOPE if
1646 pthread_attr_setscope() is available to set the contention scope
1647 attribute of a thread attribute object.
1649 d_pthread_yield (d_pthread_y.U):
1650 This variable conditionally defines the HAS_PTHREAD_YIELD
1651 symbol if the pthread_yield routine is available to yield
1652 the execution of the current thread.
1655 This variable conditionally defines PWAGE, which indicates
1656 that struct passwd contains pw_age.
1658 d_pwchange (i_pwd.U):
1659 This variable conditionally defines PWCHANGE, which indicates
1660 that struct passwd contains pw_change.
1662 d_pwclass (i_pwd.U):
1663 This variable conditionally defines PWCLASS, which indicates
1664 that struct passwd contains pw_class.
1666 d_pwcomment (i_pwd.U):
1667 This variable conditionally defines PWCOMMENT, which indicates
1668 that struct passwd contains pw_comment.
1670 d_pwexpire (i_pwd.U):
1671 This variable conditionally defines PWEXPIRE, which indicates
1672 that struct passwd contains pw_expire.
1674 d_pwgecos (i_pwd.U):
1675 This variable conditionally defines PWGECOS, which indicates
1676 that struct passwd contains pw_gecos.
1678 d_pwpasswd (i_pwd.U):
1679 This variable conditionally defines PWPASSWD, which indicates
1680 that struct passwd contains pw_passwd.
1682 d_pwquota (i_pwd.U):
1683 This variable conditionally defines PWQUOTA, which indicates
1684 that struct passwd contains pw_quota.
1686 d_qgcvt (d_qgcvt.U):
1687 This variable conditionally defines the HAS_QGCVT symbol, which
1688 indicates to the C program that the qgcvt() routine is available.
1690 d_quad (quadtype.U):
1691 This variable, if defined, tells that there's a 64-bit integer type,
1694 d_random_r (d_random_r.U):
1695 This variable conditionally defines the HAS_RANDOM_R symbol,
1696 which indicates to the C program that the random_r()
1697 routine is available.
1699 d_readdir (d_readdir.U):
1700 This variable conditionally defines HAS_READDIR if readdir() is
1701 available to read directory entries.
1703 d_readdir64_r (d_readdir64_r.U):
1704 This variable conditionally defines the HAS_READDIR64_R symbol,
1705 which indicates to the C program that the readdir64_r()
1706 routine is available.
1708 d_readdir_r (d_readdir_r.U):
1709 This variable conditionally defines the HAS_READDIR_R symbol,
1710 which indicates to the C program that the readdir_r()
1711 routine is available.
1713 d_readlink (d_readlink.U):
1714 This variable conditionally defines the HAS_READLINK symbol, which
1715 indicates to the C program that the readlink() routine is available
1716 to read the value of a symbolic link.
1718 d_readv (d_readv.U):
1719 This variable conditionally defines the HAS_READV symbol, which
1720 indicates to the C program that the readv() routine is available.
1722 d_recvmsg (d_recvmsg.U):
1723 This variable conditionally defines the HAS_RECVMSG symbol, which
1724 indicates to the C program that the recvmsg() routine is available.
1726 d_rename (d_rename.U):
1727 This variable conditionally defines the HAS_RENAME symbol, which
1728 indicates to the C program that the rename() routine is available
1731 d_rewinddir (d_readdir.U):
1732 This variable conditionally defines HAS_REWINDDIR if rewinddir() is
1735 d_rmdir (d_rmdir.U):
1736 This variable conditionally defines HAS_RMDIR if rmdir() is
1737 available to remove directories.
1739 d_safebcpy (d_safebcpy.U):
1740 This variable conditionally defines the HAS_SAFE_BCOPY symbol if
1741 the bcopy() routine can do overlapping copies. Normally, you
1742 should probably use memmove().
1744 d_safemcpy (d_safemcpy.U):
1745 This variable conditionally defines the HAS_SAFE_MEMCPY symbol if
1746 the memcpy() routine can do overlapping copies.
1747 For overlapping copies, memmove() should be used, if available.
1749 d_sanemcmp (d_sanemcmp.U):
1750 This variable conditionally defines the HAS_SANE_MEMCMP symbol if
1751 the memcpy() routine is available and can be used to compare relative
1752 magnitudes of chars with their high bits set.
1754 d_sbrkproto (d_sbrkproto.U):
1755 This variable conditionally defines the HAS_SBRK_PROTO symbol,
1756 which indicates to the C program that the system provides
1757 a prototype for the sbrk() function. Otherwise, it is
1758 up to the program to supply one.
1760 d_scalbnl (d_scalbnl.U):
1761 This variable conditionally defines the HAS_SCALBNL symbol, which
1762 indicates to the C program that the scalbnl() routine is available.
1763 If ilogbl is also present we can emulate frexpl.
1765 d_sched_yield (d_pthread_y.U):
1766 This variable conditionally defines the HAS_SCHED_YIELD
1767 symbol if the sched_yield routine is available to yield
1768 the execution of the current thread.
1770 d_scm_rights (d_socket.U):
1771 This variable conditionally defines the HAS_SCM_RIGHTS symbol,
1772 which indicates that the SCM_RIGHTS is available. #ifdef is
1773 not enough because it may be an enum, glibc has been known to do this.
1775 d_SCNfldbl (longdblfio.U):
1776 This variable conditionally defines the PERL_PRIfldbl symbol, which
1777 indiciates that stdio has a symbol to scan long doubles.
1779 d_seekdir (d_readdir.U):
1780 This variable conditionally defines HAS_SEEKDIR if seekdir() is
1783 d_select (d_select.U):
1784 This variable conditionally defines HAS_SELECT if select() is
1785 available to select active file descriptors. A <sys/time.h>
1786 inclusion may be necessary for the timeout field.
1789 This variable conditionally defines the HAS_SEM symbol, which
1790 indicates that the entire sem*(2) library is present.
1792 d_semctl (d_semctl.U):
1793 This variable conditionally defines the HAS_SEMCTL symbol, which
1794 indicates to the C program that the semctl() routine is available.
1796 d_semctl_semid_ds (d_union_semun.U):
1797 This variable conditionally defines USE_SEMCTL_SEMID_DS, which
1798 indicates that struct semid_ds * is to be used for semctl IPC_STAT.
1800 d_semctl_semun (d_union_semun.U):
1801 This variable conditionally defines USE_SEMCTL_SEMUN, which
1802 indicates that union semun is to be used for semctl IPC_STAT.
1804 d_semget (d_semget.U):
1805 This variable conditionally defines the HAS_SEMGET symbol, which
1806 indicates to the C program that the semget() routine is available.
1808 d_semop (d_semop.U):
1809 This variable conditionally defines the HAS_SEMOP symbol, which
1810 indicates to the C program that the semop() routine is available.
1812 d_sendmsg (d_sendmsg.U):
1813 This variable conditionally defines the HAS_SENDMSG symbol, which
1814 indicates to the C program that the sendmsg() routine is available.
1816 d_setegid (d_setegid.U):
1817 This variable conditionally defines the HAS_SETEGID symbol, which
1818 indicates to the C program that the setegid() routine is available
1819 to change the effective gid of the current program.
1821 d_seteuid (d_seteuid.U):
1822 This variable conditionally defines the HAS_SETEUID symbol, which
1823 indicates to the C program that the seteuid() routine is available
1824 to change the effective uid of the current program.
1826 d_setgrent (d_setgrent.U):
1827 This variable conditionally defines the HAS_SETGRENT symbol, which
1828 indicates to the C program that the setgrent() routine is available
1829 for initializing sequential access to the group database.
1831 d_setgrent_r (d_setgrent_r.U):
1832 This variable conditionally defines the HAS_SETGRENT_R symbol,
1833 which indicates to the C program that the setgrent_r()
1834 routine is available.
1836 d_setgrps (d_setgrps.U):
1837 This variable conditionally defines the HAS_SETGROUPS symbol, which
1838 indicates to the C program that the setgroups() routine is available
1839 to set the list of process groups.
1841 d_sethent (d_sethent.U):
1842 This variable conditionally defines HAS_SETHOSTENT if sethostent() is
1845 d_sethostent_r (d_sethostent_r.U):
1846 This variable conditionally defines the HAS_SETHOSTENT_R symbol,
1847 which indicates to the C program that the sethostent_r()
1848 routine is available.
1850 d_setitimer (d_setitimer.U):
1851 This variable conditionally defines the HAS_SETITIMER symbol, which
1852 indicates to the C program that the setitimer() routine is available.
1854 d_setlinebuf (d_setlnbuf.U):
1855 This variable conditionally defines the HAS_SETLINEBUF symbol, which
1856 indicates to the C program that the setlinebuf() routine is available
1857 to change stderr or stdout from block-buffered or unbuffered to a
1860 d_setlocale (d_setlocale.U):
1861 This variable conditionally defines HAS_SETLOCALE if setlocale() is
1862 available to handle locale-specific ctype implementations.
1864 d_setlocale_r (d_setlocale_r.U):
1865 This variable conditionally defines the HAS_SETLOCALE_R symbol,
1866 which indicates to the C program that the setlocale_r()
1867 routine is available.
1869 d_setnent (d_setnent.U):
1870 This variable conditionally defines HAS_SETNETENT if setnetent() is
1873 d_setnetent_r (d_setnetent_r.U):
1874 This variable conditionally defines the HAS_SETNETENT_R symbol,
1875 which indicates to the C program that the setnetent_r()
1876 routine is available.
1878 d_setpent (d_setpent.U):
1879 This variable conditionally defines HAS_SETPROTOENT if setprotoent() is
1882 d_setpgid (d_setpgid.U):
1883 This variable conditionally defines the HAS_SETPGID symbol if the
1884 setpgid(pid, gpid) function is available to set process group ID.
1886 d_setpgrp (d_setpgrp.U):
1887 This variable conditionally defines HAS_SETPGRP if setpgrp() is
1888 available to set the current process group.
1890 d_setpgrp2 (d_setpgrp2.U):
1891 This variable conditionally defines the HAS_SETPGRP2 symbol, which
1892 indicates to the C program that the setpgrp2() (as in DG/UX) routine
1893 is available to set the current process group.
1895 d_setprior (d_setprior.U):
1896 This variable conditionally defines HAS_SETPRIORITY if setpriority()
1897 is available to set a process's priority.
1899 d_setproctitle (d_setproctitle.U):
1900 This variable conditionally defines the HAS_SETPROCTITLE symbol,
1901 which indicates to the C program that the setproctitle() routine
1904 d_setprotoent_r (d_setprotoent_r.U):
1905 This variable conditionally defines the HAS_SETPROTOENT_R symbol,
1906 which indicates to the C program that the setprotoent_r()
1907 routine is available.
1909 d_setpwent (d_setpwent.U):
1910 This variable conditionally defines the HAS_SETPWENT symbol, which
1911 indicates to the C program that the setpwent() routine is available
1912 for initializing sequential access to the passwd database.
1914 d_setpwent_r (d_setpwent_r.U):
1915 This variable conditionally defines the HAS_SETPWENT_R symbol,
1916 which indicates to the C program that the setpwent_r()
1917 routine is available.
1919 d_setregid (d_setregid.U):
1920 This variable conditionally defines HAS_SETREGID if setregid() is
1921 available to change the real and effective gid of the current
1924 d_setresgid (d_setregid.U):
1925 This variable conditionally defines HAS_SETRESGID if setresgid() is
1926 available to change the real, effective and saved gid of the current
1929 d_setresuid (d_setreuid.U):
1930 This variable conditionally defines HAS_SETREUID if setresuid() is
1931 available to change the real, effective and saved uid of the current
1934 d_setreuid (d_setreuid.U):
1935 This variable conditionally defines HAS_SETREUID if setreuid() is
1936 available to change the real and effective uid of the current
1939 d_setrgid (d_setrgid.U):
1940 This variable conditionally defines the HAS_SETRGID symbol, which
1941 indicates to the C program that the setrgid() routine is available
1942 to change the real gid of the current program.
1944 d_setruid (d_setruid.U):
1945 This variable conditionally defines the HAS_SETRUID symbol, which
1946 indicates to the C program that the setruid() routine is available
1947 to change the real uid of the current program.
1949 d_setsent (d_setsent.U):
1950 This variable conditionally defines HAS_SETSERVENT if setservent() is
1953 d_setservent_r (d_setservent_r.U):
1954 This variable conditionally defines the HAS_SETSERVENT_R symbol,
1955 which indicates to the C program that the setservent_r()
1956 routine is available.
1958 d_setsid (d_setsid.U):
1959 This variable conditionally defines HAS_SETSID if setsid() is
1960 available to set the process group ID.
1962 d_setvbuf (d_setvbuf.U):
1963 This variable conditionally defines the HAS_SETVBUF symbol, which
1964 indicates to the C program that the setvbuf() routine is available
1965 to change buffering on an open stdio stream.
1968 This variable conditionally defines the USE_SFIO symbol,
1969 and indicates whether sfio is available (and should be used).
1972 This variable conditionally defines the HAS_SHM symbol, which
1973 indicates that the entire shm*(2) library is present.
1975 d_shmat (d_shmat.U):
1976 This variable conditionally defines the HAS_SHMAT symbol, which
1977 indicates to the C program that the shmat() routine is available.
1979 d_shmatprototype (d_shmat.U):
1980 This variable conditionally defines the HAS_SHMAT_PROTOTYPE
1981 symbol, which indicates that sys/shm.h has a prototype for
1984 d_shmctl (d_shmctl.U):
1985 This variable conditionally defines the HAS_SHMCTL symbol, which
1986 indicates to the C program that the shmctl() routine is available.
1988 d_shmdt (d_shmdt.U):
1989 This variable conditionally defines the HAS_SHMDT symbol, which
1990 indicates to the C program that the shmdt() routine is available.
1992 d_shmget (d_shmget.U):
1993 This variable conditionally defines the HAS_SHMGET symbol, which
1994 indicates to the C program that the shmget() routine is available.
1996 d_sigaction (d_sigaction.U):
1997 This variable conditionally defines the HAS_SIGACTION symbol, which
1998 indicates that the Vr4 sigaction() routine is available.
2000 d_signbit (d_signbit.U):
2001 This variable conditionally defines the HAS_SIGNBIT symbol, which
2002 indicates to the C program that the signbit() routine is available
2003 and safe to use with perl's intern NV type.
2005 d_sigprocmask (d_sigprocmask.U):
2006 This variable conditionally defines HAS_SIGPROCMASK
2007 if sigprocmask() is available to examine or change the signal mask
2008 of the calling process.
2010 d_sigsetjmp (d_sigsetjmp.U):
2011 This variable conditionally defines the HAS_SIGSETJMP symbol,
2012 which indicates that the sigsetjmp() routine is available to
2013 call setjmp() and optionally save the process's signal mask.
2015 d_sitearch (sitearch.U):
2016 This variable conditionally defines SITEARCH to hold the pathname
2017 of architecture-dependent library files for $package. If
2018 $sitearch is the same as $archlib, then this is set to undef.
2020 d_snprintf (d_snprintf.U):
2021 This variable conditionally defines the HAS_SNPRINTF symbol, which
2022 indicates to the C program that the snprintf () library function
2025 d_sockatmark (d_sockatmark.U):
2026 This variable conditionally defines the HAS_SOCKATMARK symbol, which
2027 indicates to the C program that the sockatmark() routine is available.
2029 d_sockatmarkproto (d_sockatmarkproto.U):
2030 This variable conditionally defines the HAS_SOCKATMARK_PROTO symbol,
2031 which indicates to the C program that the system provides
2032 a prototype for the sockatmark() function. Otherwise, it is
2033 up to the program to supply one.
2035 d_socket (d_socket.U):
2036 This variable conditionally defines HAS_SOCKET, which indicates
2037 that the BSD socket interface is supported.
2039 d_socklen_t (d_socklen_t.U):
2040 This symbol will be defined if the C compiler supports socklen_t.
2042 d_sockpair (d_socket.U):
2043 This variable conditionally defines the HAS_SOCKETPAIR symbol, which
2044 indicates that the BSD socketpair() is supported.
2046 d_socks5_init (d_socks5_init.U):
2047 This variable conditionally defines the HAS_SOCKS5_INIT symbol, which
2048 indicates to the C program that the socks5_init() routine is available.
2050 d_sprintf_returns_strlen (d_sprintf_len.U):
2051 This variable defines whether sprintf returns the length of the string
2052 (as per the ANSI spec). Some C libraries retain compatibility with
2053 pre-ANSI C and return a pointer to the passed in buffer; for these
2054 this variable will be undef.
2056 d_sqrtl (d_sqrtl.U):
2057 This variable conditionally defines the HAS_SQRTL symbol, which
2058 indicates to the C program that the sqrtl() routine is available.
2060 d_srand48_r (d_srand48_r.U):
2061 This variable conditionally defines the HAS_SRAND48_R symbol,
2062 which indicates to the C program that the srand48_r()
2063 routine is available.
2065 d_srandom_r (d_srandom_r.U):
2066 This variable conditionally defines the HAS_SRANDOM_R symbol,
2067 which indicates to the C program that the srandom_r()
2068 routine is available.
2070 d_sresgproto (d_sresgproto.U):
2071 This variable conditionally defines the HAS_SETRESGID_PROTO symbol,
2072 which indicates to the C program that the system provides
2073 a prototype for the setresgid() function. Otherwise, it is
2074 up to the program to supply one.
2076 d_sresuproto (d_sresuproto.U):
2077 This variable conditionally defines the HAS_SETRESUID_PROTO symbol,
2078 which indicates to the C program that the system provides
2079 a prototype for the setresuid() function. Otherwise, it is
2080 up to the program to supply one.
2082 d_statblks (d_statblks.U):
2083 This variable conditionally defines USE_STAT_BLOCKS
2084 if this system has a stat structure declaring
2085 st_blksize and st_blocks.
2087 d_statfs_f_flags (d_statfs_f_flags.U):
2088 This variable conditionally defines the HAS_STRUCT_STATFS_F_FLAGS
2089 symbol, which indicates to struct statfs from has f_flags member.
2090 This kind of struct statfs is coming from sys/mount.h (BSD),
2091 not from sys/statfs.h (SYSV).
2093 d_statfs_s (d_statfs_s.U):
2094 This variable conditionally defines the HAS_STRUCT_STATFS symbol,
2095 which indicates that the struct statfs is supported.
2097 d_statvfs (d_statvfs.U):
2098 This variable conditionally defines the HAS_STATVFS symbol, which
2099 indicates to the C program that the statvfs() routine is available.
2101 d_stdio_cnt_lval (d_stdstdio.U):
2102 This variable conditionally defines STDIO_CNT_LVALUE if the
2103 FILE_cnt macro can be used as an lvalue.
2105 d_stdio_ptr_lval (d_stdstdio.U):
2106 This variable conditionally defines STDIO_PTR_LVALUE if the
2107 FILE_ptr macro can be used as an lvalue.
2109 d_stdio_ptr_lval_nochange_cnt (d_stdstdio.U):
2110 This symbol is defined if using the FILE_ptr macro as an lvalue
2111 to increase the pointer by n leaves File_cnt(fp) unchanged.
2113 d_stdio_ptr_lval_sets_cnt (d_stdstdio.U):
2114 This symbol is defined if using the FILE_ptr macro as an lvalue
2115 to increase the pointer by n has the side effect of decreasing the
2116 value of File_cnt(fp) by n.
2118 d_stdio_stream_array (stdio_streams.U):
2119 This variable tells whether there is an array holding
2122 d_stdiobase (d_stdstdio.U):
2123 This variable conditionally defines USE_STDIO_BASE if this system
2124 has a FILE structure declaring a usable _base field (or equivalent)
2127 d_stdstdio (d_stdstdio.U):
2128 This variable conditionally defines USE_STDIO_PTR if this system
2129 has a FILE structure declaring usable _ptr and _cnt fields (or
2130 equivalent) in stdio.h.
2132 d_strchr (d_strchr.U):
2133 This variable conditionally defines HAS_STRCHR if strchr() and
2134 strrchr() are available for string searching.
2136 d_strcoll (d_strcoll.U):
2137 This variable conditionally defines HAS_STRCOLL if strcoll() is
2138 available to compare strings using collating information.
2140 d_strctcpy (d_strctcpy.U):
2141 This variable conditionally defines the USE_STRUCT_COPY symbol, which
2142 indicates to the C program that this C compiler knows how to copy
2145 d_strerrm (d_strerror.U):
2146 This variable holds what Strerrr is defined as to translate an error
2147 code condition into an error message string. It could be 'strerror'
2148 or a more complex macro emulating strrror with sys_errlist[], or the
2149 "unknown" string when both strerror and sys_errlist are missing.
2151 d_strerror (d_strerror.U):
2152 This variable conditionally defines HAS_STRERROR if strerror() is
2153 available to translate error numbers to strings.
2155 d_strerror_r (d_strerror_r.U):
2156 This variable conditionally defines the HAS_STRERROR_R symbol,
2157 which indicates to the C program that the strerror_r()
2158 routine is available.
2160 d_strftime (d_strftime.U):
2161 This variable conditionally defines the HAS_STRFTIME symbol, which
2162 indicates to the C program that the strftime() routine is available.
2164 d_strlcat (d_strlcat.U):
2165 This variable conditionally defines the HAS_STRLCAT symbol, which
2166 indicates to the C program that the strlcat () routine is available.
2168 d_strlcpy (d_strlcpy.U):
2169 This variable conditionally defines the HAS_STRLCPY symbol, which
2170 indicates to the C program that the strlcpy () routine is available.
2172 d_strtod (d_strtod.U):
2173 This variable conditionally defines the HAS_STRTOD symbol, which
2174 indicates to the C program that the strtod() routine is available
2175 to provide better numeric string conversion than atof().
2177 d_strtol (d_strtol.U):
2178 This variable conditionally defines the HAS_STRTOL symbol, which
2179 indicates to the C program that the strtol() routine is available
2180 to provide better numeric string conversion than atoi() and friends.
2182 d_strtold (d_strtold.U):
2183 This variable conditionally defines the HAS_STRTOLD symbol, which
2184 indicates to the C program that the strtold() routine is available.
2186 d_strtoll (d_strtoll.U):
2187 This variable conditionally defines the HAS_STRTOLL symbol, which
2188 indicates to the C program that the strtoll() routine is available.
2190 d_strtoq (d_strtoq.U):
2191 This variable conditionally defines the HAS_STRTOQ symbol, which
2192 indicates to the C program that the strtoq() routine is available.
2194 d_strtoul (d_strtoul.U):
2195 This variable conditionally defines the HAS_STRTOUL symbol, which
2196 indicates to the C program that the strtoul() routine is available
2197 to provide conversion of strings to unsigned long.
2199 d_strtoull (d_strtoull.U):
2200 This variable conditionally defines the HAS_STRTOULL symbol, which
2201 indicates to the C program that the strtoull() routine is available.
2203 d_strtouq (d_strtouq.U):
2204 This variable conditionally defines the HAS_STRTOUQ symbol, which
2205 indicates to the C program that the strtouq() routine is available.
2207 d_strxfrm (d_strxfrm.U):
2208 This variable conditionally defines HAS_STRXFRM if strxfrm() is
2209 available to transform strings.
2211 d_suidsafe (d_dosuid.U):
2212 This variable conditionally defines SETUID_SCRIPTS_ARE_SECURE_NOW
2213 if setuid scripts can be secure. This test looks in /dev/fd/.
2215 d_symlink (d_symlink.U):
2216 This variable conditionally defines the HAS_SYMLINK symbol, which
2217 indicates to the C program that the symlink() routine is available
2218 to create symbolic links.
2220 d_syscall (d_syscall.U):
2221 This variable conditionally defines HAS_SYSCALL if syscall() is
2222 available call arbitrary system calls.
2224 d_syscallproto (d_syscallproto.U):
2225 This variable conditionally defines the HAS_SYSCALL_PROTO symbol,
2226 which indicates to the C program that the system provides
2227 a prototype for the syscall() function. Otherwise, it is
2228 up to the program to supply one.
2230 d_sysconf (d_sysconf.U):
2231 This variable conditionally defines the HAS_SYSCONF symbol, which
2232 indicates to the C program that the sysconf() routine is available
2233 to determine system related limits and options.
2235 d_sysernlst (d_strerror.U):
2236 This variable conditionally defines HAS_SYS_ERRNOLIST if sys_errnolist[]
2237 is available to translate error numbers to the symbolic name.
2239 d_syserrlst (d_strerror.U):
2240 This variable conditionally defines HAS_SYS_ERRLIST if sys_errlist[] is
2241 available to translate error numbers to strings.
2243 d_system (d_system.U):
2244 This variable conditionally defines HAS_SYSTEM if system() is
2245 available to issue a shell command.
2247 d_tcgetpgrp (d_tcgtpgrp.U):
2248 This variable conditionally defines the HAS_TCGETPGRP symbol, which
2249 indicates to the C program that the tcgetpgrp() routine is available.
2250 to get foreground process group ID.
2252 d_tcsetpgrp (d_tcstpgrp.U):
2253 This variable conditionally defines the HAS_TCSETPGRP symbol, which
2254 indicates to the C program that the tcsetpgrp() routine is available
2255 to set foreground process group ID.
2257 d_telldir (d_readdir.U):
2258 This variable conditionally defines HAS_TELLDIR if telldir() is
2261 d_telldirproto (d_telldirproto.U):
2262 This variable conditionally defines the HAS_TELLDIR_PROTO symbol,
2263 which indicates to the C program that the system provides
2264 a prototype for the telldir() function. Otherwise, it is
2265 up to the program to supply one.
2268 This variable conditionally defines the HAS_TIME symbol, which indicates
2269 that the time() routine exists. The time() routine is normaly
2270 provided on UNIX systems.
2272 d_timegm (d_timegm.U):
2273 This variable conditionally defines the HAS_TIMEGM symbol, which
2274 indicates to the C program that the timegm () routine is available.
2276 d_times (d_times.U):
2277 This variable conditionally defines the HAS_TIMES symbol, which indicates
2278 that the times() routine exists. The times() routine is normaly
2279 provided on UNIX systems. You may have to include <sys/times.h>.
2281 d_tm_tm_gmtoff (i_time.U):
2282 This variable conditionally defines HAS_TM_TM_GMTOFF, which indicates
2283 indicates to the C program that the struct tm has the tm_gmtoff field.
2285 d_tm_tm_zone (i_time.U):
2286 This variable conditionally defines HAS_TM_TM_ZONE, which indicates
2287 indicates to the C program that the struct tm has the tm_zone field.
2289 d_tmpnam_r (d_tmpnam_r.U):
2290 This variable conditionally defines the HAS_TMPNAM_R symbol,
2291 which indicates to the C program that the tmpnam_r()
2292 routine is available.
2294 d_truncate (d_truncate.U):
2295 This variable conditionally defines HAS_TRUNCATE if truncate() is
2296 available to truncate files.
2298 d_ttyname_r (d_ttyname_r.U):
2299 This variable conditionally defines the HAS_TTYNAME_R symbol,
2300 which indicates to the C program that the ttyname_r()
2301 routine is available.
2303 d_tzname (d_tzname.U):
2304 This variable conditionally defines HAS_TZNAME if tzname[] is
2305 available to access timezone names.
2307 d_u32align (d_u32align.U):
2308 This variable tells whether you must access character data
2309 through U32-aligned pointers.
2311 d_ualarm (d_ualarm.U):
2312 This variable conditionally defines the HAS_UALARM symbol, which
2313 indicates to the C program that the ualarm() routine is available.
2315 d_umask (d_umask.U):
2316 This variable conditionally defines the HAS_UMASK symbol, which
2317 indicates to the C program that the umask() routine is available.
2318 to set and get the value of the file creation mask.
2320 d_uname (d_gethname.U):
2321 This variable conditionally defines the HAS_UNAME symbol, which
2322 indicates to the C program that the uname() routine may be
2323 used to derive the host name.
2325 d_union_semun (d_union_semun.U):
2326 This variable conditionally defines HAS_UNION_SEMUN if the
2327 union semun is defined by including <sys/sem.h>.
2329 d_unordered (d_unordered.U):
2330 This variable conditionally defines the HAS_UNORDERED symbol, which
2331 indicates to the C program that the unordered() routine is available.
2333 d_unsetenv (d_unsetenv.U):
2334 This variable conditionally defines the HAS_UNSETENV symbol, which
2335 indicates to the C program that the unsetenv () routine is available.
2337 d_usleep (d_usleep.U):
2338 This variable conditionally defines HAS_USLEEP if usleep() is
2339 available to do high granularity sleeps.
2341 d_usleepproto (d_usleepproto.U):
2342 This variable conditionally defines the HAS_USLEEP_PROTO symbol,
2343 which indicates to the C program that the system provides
2344 a prototype for the usleep() function. Otherwise, it is
2345 up to the program to supply one.
2347 d_ustat (d_ustat.U):
2348 This variable conditionally defines HAS_USTAT if ustat() is
2349 available to query file system statistics by dev_t.
2351 d_vendorarch (vendorarch.U):
2352 This variable conditionally defined PERL_VENDORARCH.
2354 d_vendorbin (vendorbin.U):
2355 This variable conditionally defines PERL_VENDORBIN.
2357 d_vendorlib (vendorlib.U):
2358 This variable conditionally defines PERL_VENDORLIB.
2360 d_vendorscript (vendorscript.U):
2361 This variable conditionally defines PERL_VENDORSCRIPT.
2363 d_vfork (d_vfork.U):
2364 This variable conditionally defines the HAS_VFORK symbol, which
2365 indicates the vfork() routine is available.
2367 d_void_closedir (d_closedir.U):
2368 This variable conditionally defines VOID_CLOSEDIR if closedir()
2369 does not return a value.
2371 d_voidsig (d_voidsig.U):
2372 This variable conditionally defines VOIDSIG if this system
2373 declares "void (*signal(...))()" in signal.h. The old way was to
2374 declare it as "int (*signal(...))()".
2376 d_voidtty (i_sysioctl.U):
2377 This variable conditionally defines USE_IOCNOTTY to indicate that the
2378 ioctl() call with TIOCNOTTY should be used to void tty association.
2379 Otherwise (on USG probably), it is enough to close the standard file
2380 decriptors and do a setpgrp().
2382 d_volatile (d_volatile.U):
2383 This variable conditionally defines the HASVOLATILE symbol, which
2384 indicates to the C program that this C compiler knows about the
2385 volatile declaration.
2387 d_vprintf (d_vprintf.U):
2388 This variable conditionally defines the HAS_VPRINTF symbol, which
2389 indicates to the C program that the vprintf() routine is available
2390 to printf with a pointer to an argument list.
2392 d_vsnprintf (d_snprintf.U):
2393 This variable conditionally defines the HAS_VSNPRINTF symbol, which
2394 indicates to the C program that the vsnprintf () library function
2397 d_wait4 (d_wait4.U):
2398 This variable conditionally defines the HAS_WAIT4 symbol, which
2399 indicates the wait4() routine is available.
2401 d_waitpid (d_waitpid.U):
2402 This variable conditionally defines HAS_WAITPID if waitpid() is
2403 available to wait for child process.
2405 d_wcstombs (d_wcstombs.U):
2406 This variable conditionally defines the HAS_WCSTOMBS symbol, which
2407 indicates to the C program that the wcstombs() routine is available
2408 to convert wide character strings to multibyte strings.
2410 d_wctomb (d_wctomb.U):
2411 This variable conditionally defines the HAS_WCTOMB symbol, which
2412 indicates to the C program that the wctomb() routine is available
2413 to convert a wide character to a multibyte.
2415 d_writev (d_writev.U):
2416 This variable conditionally defines the HAS_WRITEV symbol, which
2417 indicates to the C program that the writev() routine is available.
2420 This variable conditionally defines the symbol XENIX, which alerts
2421 the C program that it runs under Xenix.
2424 This variable is used internally by Configure to determine the
2425 full pathname (if any) of the date program. After Configure runs,
2426 the value is reset to a plain "date" and is not useful.
2428 db_hashtype (i_db.U):
2429 This variable contains the type of the hash structure element
2430 in the <db.h> header file. In older versions of DB, it was
2431 int, while in newer ones it is u_int32_t.
2433 db_prefixtype (i_db.U):
2434 This variable contains the type of the prefix structure element
2435 in the <db.h> header file. In older versions of DB, it was
2436 int, while in newer ones it is size_t.
2438 db_version_major (i_db.U):
2439 This variable contains the major version number of
2440 Berkeley DB found in the <db.h> header file.
2442 db_version_minor (i_db.U):
2443 This variable contains the minor version number of
2444 Berkeley DB found in the <db.h> header file.
2445 For DB version 1 this is always 0.
2447 db_version_patch (i_db.U):
2448 This variable contains the patch version number of
2449 Berkeley DB found in the <db.h> header file.
2450 For DB version 1 this is always 0.
2452 defvoidused (voidflags.U):
2453 This variable contains the default value of the VOIDUSED symbol (15).
2455 direntrytype (i_dirent.U):
2456 This symbol is set to 'struct direct' or 'struct dirent' depending on
2457 whether dirent is available or not. You should use this pseudo type to
2458 portably declare your directory entries.
2461 This variable contains the extension that is to be used for the
2462 dynamically loaded modules that perl generaties.
2465 This variable contains the name of the dynamic loading file that
2466 will be used with the package.
2468 doublesize (doublesize.U):
2469 This variable contains the value of the DOUBLESIZE symbol, which
2470 indicates to the C program how many bytes there are in a double.
2472 drand01 (randfunc.U):
2473 Indicates the macro to be used to generate normalized
2474 random numbers. Uses randfunc, often divided by
2475 (double) (((unsigned long) 1 << randbits)) in order to
2476 normalize the result.
2477 In C programs, the macro 'Drand01' is mapped to drand01.
2479 drand48_r_proto (d_drand48_r.U):
2480 This variable encodes the prototype of drand48_r.
2481 It is zero if d_drand48_r is undef, and one of the
2482 REENTRANT_PROTO_T_ABC macros of reentr.h if d_drand48_r
2485 dtrace (usedtrace.U):
2486 This variable holds the location of the dtrace executable.
2488 dynamic_ext (Extensions.U):
2489 This variable holds a list of XS extension files we want to
2490 link dynamically into the package. It is used by Makefile.
2492 eagain (nblock_io.U):
2493 This variable bears the symbolic errno code set by read() when no
2494 data is present on the file and non-blocking I/O was enabled (otherwise,
2495 read() blocks naturally).
2498 This variable conditionally defines EBCDIC if this
2499 system uses EBCDIC encoding. Among other things, this
2500 means that the character ranges are not contiguous.
2504 This variable is used internally by Configure to determine the
2505 full pathname (if any) of the echo program. After Configure runs,
2506 the value is reset to a plain "echo" and is not useful.
2509 This variable is used internally by Configure to determine the
2510 full pathname (if any) of the egrep program. After Configure runs,
2511 the value is reset to a plain "egrep" and is not useful.
2514 This variable is defined but not used by Configure.
2515 The value is the empty string and is not useful.
2517 endgrent_r_proto (d_endgrent_r.U):
2518 This variable encodes the prototype of endgrent_r.
2519 It is zero if d_endgrent_r is undef, and one of the
2520 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endgrent_r
2523 endhostent_r_proto (d_endhostent_r.U):
2524 This variable encodes the prototype of endhostent_r.
2525 It is zero if d_endhostent_r is undef, and one of the
2526 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endhostent_r
2529 endnetent_r_proto (d_endnetent_r.U):
2530 This variable encodes the prototype of endnetent_r.
2531 It is zero if d_endnetent_r is undef, and one of the
2532 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endnetent_r
2535 endprotoent_r_proto (d_endprotoent_r.U):
2536 This variable encodes the prototype of endprotoent_r.
2537 It is zero if d_endprotoent_r is undef, and one of the
2538 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endprotoent_r
2541 endpwent_r_proto (d_endpwent_r.U):
2542 This variable encodes the prototype of endpwent_r.
2543 It is zero if d_endpwent_r is undef, and one of the
2544 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endpwent_r
2547 endservent_r_proto (d_endservent_r.U):
2548 This variable encodes the prototype of endservent_r.
2549 It is zero if d_endservent_r is undef, and one of the
2550 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endservent_r
2554 When running under Eunice this variable contains a command which will
2555 convert a shell script to the proper form of text file for it to be
2556 executable by the shell. On other systems it is a no-op.
2559 This is an old synonym for _exe.
2562 This variable is used internally by Configure to determine the
2563 full pathname (if any) of the expr program. After Configure runs,
2564 the value is reset to a plain "expr" and is not useful.
2566 extensions (Extensions.U):
2567 This variable holds a list of all extension files (both XS and
2568 non-xs linked into the package. It is propagated to Config.pm
2569 and is typically used to test whether a particular extesion
2573 ANSI C requires 'extern' where C++ requires 'extern "C"'. This
2574 variable can be used in Configure to do the right thing.
2577 This variable holds a list of extra modules to install.
2579 fflushall (fflushall.U):
2580 This symbol, if defined, tells that to flush
2581 all pending stdio output one must loop through all
2582 the stdio file handles stored in an array and fflush them.
2583 Note that if fflushNULL is defined, fflushall will not
2584 even be probed for and will be left undefined.
2586 fflushNULL (fflushall.U):
2587 This symbol, if defined, tells that fflush(NULL) does flush
2588 all pending stdio output.
2591 This variable is defined but not used by Configure.
2592 The value is the empty string and is not useful.
2594 firstmakefile (Unix.U):
2595 This variable defines the first file searched by make. On unix,
2596 it is makefile (then Makefile). On case-insensitive systems,
2597 it might be something else. This is only used to deal with
2598 convoluted make depend tricks.
2601 This variable is defined but not used by Configure.
2602 The value is the empty string and is not useful.
2604 fpossize (fpossize.U):
2605 This variable contains the size of a fpostype in bytes.
2607 fpostype (fpostype.U):
2608 This variable defines Fpos_t to be something like fpos_t, long,
2609 uint, or whatever type is used to declare file positions in libc.
2611 freetype (mallocsrc.U):
2612 This variable contains the return type of free(). It is usually
2613 void, but occasionally int.
2616 This variable contains the command used by Configure
2617 to copy files from the target host. Useful and available
2618 only during Perl build.
2619 The string ':' if not cross-compiling.
2622 This variable contains the full pathname to 'ar', whether or
2623 not the user has specified 'portability'. This is only used
2627 This variable contains the full pathname to 'csh', whether or
2628 not the user has specified 'portability'. This is only used
2629 in the compiled C program, and we assume that all systems which
2630 can share this executable will have the same full pathname to
2633 full_sed (Loc_sed.U):
2634 This variable contains the full pathname to 'sed', whether or
2635 not the user has specified 'portability'. This is only used
2636 in the compiled C program, and we assume that all systems which
2637 can share this executable will have the same full pathname to
2640 gccansipedantic (gccvers.U):
2641 If GNU cc (gcc) is used, this variable will enable (if set) the
2642 -ansi and -pedantic ccflags for building core files (through
2643 cflags script). (See Porting/pumpkin.pod for full description).
2645 gccosandvers (gccvers.U):
2646 If GNU cc (gcc) is used, this variable holds the operating system
2647 and version used to compile gcc. It is set to '' if not gcc,
2648 or if nothing useful can be parsed as the os version.
2650 gccversion (gccvers.U):
2651 If GNU cc (gcc) is used, this variable holds '1' or '2' to
2652 indicate whether the compiler is version 1 or 2. This is used in
2653 setting some of the default cflags. It is set to '' if not gcc.
2655 getgrent_r_proto (d_getgrent_r.U):
2656 This variable encodes the prototype of getgrent_r.
2657 It is zero if d_getgrent_r is undef, and one of the
2658 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrent_r
2661 getgrgid_r_proto (d_getgrgid_r.U):
2662 This variable encodes the prototype of getgrgid_r.
2663 It is zero if d_getgrgid_r is undef, and one of the
2664 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrgid_r
2667 getgrnam_r_proto (d_getgrnam_r.U):
2668 This variable encodes the prototype of getgrnam_r.
2669 It is zero if d_getgrnam_r is undef, and one of the
2670 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrnam_r
2673 gethostbyaddr_r_proto (d_gethostbyaddr_r.U):
2674 This variable encodes the prototype of gethostbyaddr_r.
2675 It is zero if d_gethostbyaddr_r is undef, and one of the
2676 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyaddr_r
2679 gethostbyname_r_proto (d_gethostbyname_r.U):
2680 This variable encodes the prototype of gethostbyname_r.
2681 It is zero if d_gethostbyname_r is undef, and one of the
2682 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyname_r
2685 gethostent_r_proto (d_gethostent_r.U):
2686 This variable encodes the prototype of gethostent_r.
2687 It is zero if d_gethostent_r is undef, and one of the
2688 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostent_r
2691 getlogin_r_proto (d_getlogin_r.U):
2692 This variable encodes the prototype of getlogin_r.
2693 It is zero if d_getlogin_r is undef, and one of the
2694 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getlogin_r
2697 getnetbyaddr_r_proto (d_getnetbyaddr_r.U):
2698 This variable encodes the prototype of getnetbyaddr_r.
2699 It is zero if d_getnetbyaddr_r is undef, and one of the
2700 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyaddr_r
2703 getnetbyname_r_proto (d_getnetbyname_r.U):
2704 This variable encodes the prototype of getnetbyname_r.
2705 It is zero if d_getnetbyname_r is undef, and one of the
2706 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyname_r
2709 getnetent_r_proto (d_getnetent_r.U):
2710 This variable encodes the prototype of getnetent_r.
2711 It is zero if d_getnetent_r is undef, and one of the
2712 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetent_r
2715 getprotobyname_r_proto (d_getprotobyname_r.U):
2716 This variable encodes the prototype of getprotobyname_r.
2717 It is zero if d_getprotobyname_r is undef, and one of the
2718 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobyname_r
2721 getprotobynumber_r_proto (d_getprotobynumber_r.U):
2722 This variable encodes the prototype of getprotobynumber_r.
2723 It is zero if d_getprotobynumber_r is undef, and one of the
2724 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobynumber_r
2727 getprotoent_r_proto (d_getprotoent_r.U):
2728 This variable encodes the prototype of getprotoent_r.
2729 It is zero if d_getprotoent_r is undef, and one of the
2730 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotoent_r
2733 getpwent_r_proto (d_getpwent_r.U):
2734 This variable encodes the prototype of getpwent_r.
2735 It is zero if d_getpwent_r is undef, and one of the
2736 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwent_r
2739 getpwnam_r_proto (d_getpwnam_r.U):
2740 This variable encodes the prototype of getpwnam_r.
2741 It is zero if d_getpwnam_r is undef, and one of the
2742 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwnam_r
2745 getpwuid_r_proto (d_getpwuid_r.U):
2746 This variable encodes the prototype of getpwuid_r.
2747 It is zero if d_getpwuid_r is undef, and one of the
2748 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwuid_r
2751 getservbyname_r_proto (d_getservbyname_r.U):
2752 This variable encodes the prototype of getservbyname_r.
2753 It is zero if d_getservbyname_r is undef, and one of the
2754 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyname_r
2757 getservbyport_r_proto (d_getservbyport_r.U):
2758 This variable encodes the prototype of getservbyport_r.
2759 It is zero if d_getservbyport_r is undef, and one of the
2760 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyport_r
2763 getservent_r_proto (d_getservent_r.U):
2764 This variable encodes the prototype of getservent_r.
2765 It is zero if d_getservent_r is undef, and one of the
2766 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservent_r
2769 getspnam_r_proto (d_getspnam_r.U):
2770 This variable encodes the prototype of getspnam_r.
2771 It is zero if d_getspnam_r is undef, and one of the
2772 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getspnam_r
2776 This variable contains the format string used for printing a Gid_t.
2778 gidsign (gidsign.U):
2779 This variable contains the signedness of a gidtype.
2780 1 for unsigned, -1 for signed.
2782 gidsize (gidsize.U):
2783 This variable contains the size of a gidtype in bytes.
2785 gidtype (gidtype.U):
2786 This variable defines Gid_t to be something like gid_t, int,
2787 ushort, or whatever type is used to declare the return type
2788 of getgid(). Typically, it is the type of group ids in the kernel.
2791 This variable holds the general path (space-separated) used to
2792 find libraries. It may contain directories that do not exist on
2793 this platform, libpth is the cleaned-up version.
2796 This variable is used internally by Configure to determine the
2797 full pathname (if any) of the gmake program. After Configure runs,
2798 the value is reset to a plain "gmake" and is not useful.
2800 gmtime_r_proto (d_gmtime_r.U):
2801 This variable encodes the prototype of gmtime_r.
2802 It is zero if d_gmtime_r is undef, and one of the
2803 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gmtime_r
2806 gnulibc_version (d_gnulibc.U):
2807 This variable contains the version number of the GNU C library.
2808 It is usually something like '2.2.5'. It is a plain '' if this
2809 is not the GNU C library, or if the version is unknown.
2812 This variable is used internally by Configure to determine the
2813 full pathname (if any) of the grep program. After Configure runs,
2814 the value is reset to a plain "grep" and is not useful.
2817 This variable contains a command that produces the text of the
2818 /etc/group file. This is normally "cat /etc/group", but can be
2819 "ypcat group" when NIS is used.
2820 On some systems, such as os390, there may be no equivalent
2821 command, in which case this variable is unset.
2823 groupstype (groupstype.U):
2824 This variable defines Groups_t to be something like gid_t, int,
2825 ushort, or whatever type is used for the second argument to
2826 getgroups() and setgroups(). Usually, this is the same as
2827 gidtype (gid_t), but sometimes it isn't.
2830 This variable is used internally by Configure to determine the
2831 full pathname (if any) of the gzip program. After Configure runs,
2832 the value is reset to a plain "gzip" and is not useful.
2834 h_fcntl (h_fcntl.U):
2835 This is variable gets set in various places to tell i_fcntl that
2836 <fcntl.h> should be included.
2838 h_sysfile (h_sysfile.U):
2839 This is variable gets set in various places to tell i_sys_file that
2840 <sys/file.h> should be included.
2843 Gives the type of hints used for previous answers. May be one of
2844 "default", "recommended" or "previous".
2847 This variable contains a command that produces the text of the
2848 /etc/hosts file. This is normally "cat /etc/hosts", but can be
2849 "ypcat hosts" when NIS is used.
2850 On some systems, such as os390, there may be no equivalent
2851 command, in which case this variable is unset.
2853 html1dir (html1dir.U):
2854 This variable contains the name of the directory in which html
2855 source pages are to be put. This directory is for pages
2856 that describe whole programs, not libraries or modules. It
2857 is intended to correspond roughly to section 1 of the Unix
2860 html1direxp (html1dir.U):
2861 This variable is the same as the html1dir variable, but is filename
2862 expanded at configuration time, for convenient use in makefiles.
2864 html3dir (html3dir.U):
2865 This variable contains the name of the directory in which html
2866 source pages are to be put. This directory is for pages
2867 that describe libraries or modules. It is intended to
2868 correspond roughly to section 3 of the Unix manuals.
2870 html3direxp (html3dir.U):
2871 This variable is the same as the html3dir variable, but is filename
2872 expanded at configuration time, for convenient use in makefiles.
2875 This variable is the size of an I16 in bytes.
2878 This variable contains the C type used for Perl's I16.
2881 This variable is the size of an I32 in bytes.
2884 This variable contains the C type used for Perl's I32.
2887 This variable is the size of an I64 in bytes.
2890 This variable contains the C type used for Perl's I64.
2893 This variable is the size of an I8 in bytes.
2896 This variable contains the C type used for Perl's I8.
2898 i_arpainet (i_arpainet.U):
2899 This variable conditionally defines the I_ARPA_INET symbol,
2900 and indicates whether a C program should include <arpa/inet.h>.
2902 i_assert (i_assert.U):
2903 This variable conditionally defines the I_ASSERT symbol, which
2904 indicates to the C program that <assert.h> exists and could be
2907 i_bsdioctl (i_sysioctl.U):
2908 This variable conditionally defines the I_SYS_BSDIOCTL symbol, which
2909 indicates to the C program that <sys/bsdioctl.h> exists and should
2912 i_crypt (i_crypt.U):
2913 This variable conditionally defines the I_CRYPT symbol, and indicates
2914 whether a C program should include <crypt.h>.
2917 This variable conditionally defines the I_DB symbol, and indicates
2918 whether a C program may include Berkeley's DB include file <db.h>.
2921 This variable conditionally defines the I_DBM symbol, which
2922 indicates to the C program that <dbm.h> exists and should
2925 i_dirent (i_dirent.U):
2926 This variable conditionally defines I_DIRENT, which indicates
2927 to the C program that it should include <dirent.h>.
2930 This variable conditionally defines the I_DLD symbol, which
2931 indicates to the C program that <dld.h> (GNU dynamic loading)
2932 exists and should be included.
2934 i_dlfcn (i_dlfcn.U):
2935 This variable conditionally defines the I_DLFCN symbol, which
2936 indicates to the C program that <dlfcn.h> exists and should
2939 i_fcntl (i_fcntl.U):
2940 This variable controls the value of I_FCNTL (which tells
2941 the C program to include <fcntl.h>).
2943 i_float (i_float.U):
2944 This variable conditionally defines the I_FLOAT symbol, and indicates
2945 whether a C program may include <float.h> to get symbols like DBL_MAX
2946 or DBL_MIN, i.e. machine dependent floating point values.
2949 This variable conditionally defines the I_FP symbol, and indicates
2950 whether a C program should include <fp.h>.
2952 i_fp_class (i_fp_class.U):
2953 This variable conditionally defines the I_FP_CLASS symbol, and indicates
2954 whether a C program should include <fp_class.h>.
2957 This variable conditionally defines the I_GDBM symbol, which
2958 indicates to the C program that <gdbm.h> exists and should
2961 i_gdbm_ndbm (i_ndbm.U):
2962 This variable conditionally defines the I_GDBM_NDBM symbol, which
2963 indicates to the C program that <gdbm-ndbm.h> exists and should
2964 be included. This is the location of the ndbm.h compatibility file
2967 i_gdbmndbm (i_ndbm.U):
2968 This variable conditionally defines the I_GDBMNDBM symbol, which
2969 indicates to the C program that <gdbm/ndbm.h> exists and should
2970 be included. This was the location of the ndbm.h compatibility file
2974 This variable conditionally defines the I_GRP symbol, and indicates
2975 whether a C program should include <grp.h>.
2977 i_ieeefp (i_ieeefp.U):
2978 This variable conditionally defines the I_IEEEFP symbol, and indicates
2979 whether a C program should include <ieeefp.h>.
2981 i_inttypes (i_inttypes.U):
2982 This variable conditionally defines the I_INTTYPES symbol,
2983 and indicates whether a C program should include <inttypes.h>.
2985 i_langinfo (i_langinfo.U):
2986 This variable conditionally defines the I_LANGINFO symbol,
2987 and indicates whether a C program should include <langinfo.h>.
2989 i_libutil (i_libutil.U):
2990 This variable conditionally defines the I_LIBUTIL symbol, and indicates
2991 whether a C program should include <libutil.h>.
2993 i_limits (i_limits.U):
2994 This variable conditionally defines the I_LIMITS symbol, and indicates
2995 whether a C program may include <limits.h> to get symbols like WORD_BIT
2998 i_locale (i_locale.U):
2999 This variable conditionally defines the I_LOCALE symbol,
3000 and indicates whether a C program should include <locale.h>.
3002 i_machcthr (i_machcthr.U):
3003 This variable conditionally defines the I_MACH_CTHREADS symbol,
3004 and indicates whether a C program should include <mach/cthreads.h>.
3006 i_malloc (i_malloc.U):
3007 This variable conditionally defines the I_MALLOC symbol, and indicates
3008 whether a C program should include <malloc.h>.
3010 i_mallocmalloc (i_mallocmalloc.U):
3011 This variable conditionally defines the I_MALLOCMALLOC symbol,
3012 and indicates whether a C program should include <malloc/malloc.h>.
3015 This variable conditionally defines the I_MATH symbol, and indicates
3016 whether a C program may include <math.h>.
3018 i_memory (i_memory.U):
3019 This variable conditionally defines the I_MEMORY symbol, and indicates
3020 whether a C program should include <memory.h>.
3022 i_mntent (i_mntent.U):
3023 This variable conditionally defines the I_MNTENT symbol, and indicates
3024 whether a C program should include <mntent.h>.
3027 This variable conditionally defines the I_NDBM symbol, which
3028 indicates to the C program that <ndbm.h> exists and should
3031 i_netdb (i_netdb.U):
3032 This variable conditionally defines the I_NETDB symbol, and indicates
3033 whether a C program should include <netdb.h>.
3035 i_neterrno (i_neterrno.U):
3036 This variable conditionally defines the I_NET_ERRNO symbol, which
3037 indicates to the C program that <net/errno.h> exists and should
3040 i_netinettcp (i_netinettcp.U):
3041 This variable conditionally defines the I_NETINET_TCP symbol,
3042 and indicates whether a C program should include <netinet/tcp.h>.
3045 This variable conditionally defines I_NETINET_IN, which indicates
3046 to the C program that it should include <netinet/in.h>. Otherwise,
3047 you may try <sys/in.h>.
3050 This variable conditionally defines the I_POLL symbol, and indicates
3051 whether a C program should include <poll.h>.
3054 This variable conditionally defines the I_PROT symbol, and indicates
3055 whether a C program should include <prot.h>.
3057 i_pthread (i_pthread.U):
3058 This variable conditionally defines the I_PTHREAD symbol,
3059 and indicates whether a C program should include <pthread.h>.
3062 This variable conditionally defines I_PWD, which indicates
3063 to the C program that it should include <pwd.h>.
3065 i_rpcsvcdbm (i_dbm.U):
3066 This variable conditionally defines the I_RPCSVC_DBM symbol, which
3067 indicates to the C program that <rpcsvc/dbm.h> exists and should
3068 be included. Some System V systems might need this instead of <dbm.h>.
3071 This variable conditionally defines the I_SFIO symbol,
3072 and indicates whether a C program should include <sfio.h>.
3074 i_sgtty (i_termio.U):
3075 This variable conditionally defines the I_SGTTY symbol, which
3076 indicates to the C program that it should include <sgtty.h> rather
3079 i_shadow (i_shadow.U):
3080 This variable conditionally defines the I_SHADOW symbol, and indicates
3081 whether a C program should include <shadow.h>.
3083 i_socks (i_socks.U):
3084 This variable conditionally defines the I_SOCKS symbol, and indicates
3085 whether a C program should include <socks.h>.
3087 i_stdarg (i_varhdr.U):
3088 This variable conditionally defines the I_STDARG symbol, which
3089 indicates to the C program that <stdarg.h> exists and should
3092 i_stddef (i_stddef.U):
3093 This variable conditionally defines the I_STDDEF symbol, which
3094 indicates to the C program that <stddef.h> exists and should
3097 i_stdlib (i_stdlib.U):
3098 This variable conditionally defines the I_STDLIB symbol, which
3099 indicates to the C program that <stdlib.h> exists and should
3102 i_string (i_string.U):
3103 This variable conditionally defines the I_STRING symbol, which
3104 indicates that <string.h> should be included rather than <strings.h>.
3106 i_sunmath (i_sunmath.U):
3107 This variable conditionally defines the I_SUNMATH symbol, and indicates
3108 whether a C program should include <sunmath.h>.
3110 i_sysaccess (i_sysaccess.U):
3111 This variable conditionally defines the I_SYS_ACCESS symbol,
3112 and indicates whether a C program should include <sys/access.h>.
3114 i_sysdir (i_sysdir.U):
3115 This variable conditionally defines the I_SYS_DIR symbol, and indicates
3116 whether a C program should include <sys/dir.h>.
3118 i_sysfile (i_sysfile.U):
3119 This variable conditionally defines the I_SYS_FILE symbol, and indicates
3120 whether a C program should include <sys/file.h> to get R_OK and friends.
3122 i_sysfilio (i_sysioctl.U):
3123 This variable conditionally defines the I_SYS_FILIO symbol, which
3124 indicates to the C program that <sys/filio.h> exists and should
3125 be included in preference to <sys/ioctl.h>.
3128 This variable conditionally defines I_SYS_IN, which indicates
3129 to the C program that it should include <sys/in.h> instead of
3132 i_sysioctl (i_sysioctl.U):
3133 This variable conditionally defines the I_SYS_IOCTL symbol, which
3134 indicates to the C program that <sys/ioctl.h> exists and should
3137 i_syslog (i_syslog.U):
3138 This variable conditionally defines the I_SYSLOG symbol,
3139 and indicates whether a C program should include <syslog.h>.
3141 i_sysmman (i_sysmman.U):
3142 This variable conditionally defines the I_SYS_MMAN symbol, and
3143 indicates whether a C program should include <sys/mman.h>.
3145 i_sysmode (i_sysmode.U):
3146 This variable conditionally defines the I_SYSMODE symbol,
3147 and indicates whether a C program should include <sys/mode.h>.
3149 i_sysmount (i_sysmount.U):
3150 This variable conditionally defines the I_SYSMOUNT symbol,
3151 and indicates whether a C program should include <sys/mount.h>.
3153 i_sysndir (i_sysndir.U):
3154 This variable conditionally defines the I_SYS_NDIR symbol, and indicates
3155 whether a C program should include <sys/ndir.h>.
3157 i_sysparam (i_sysparam.U):
3158 This variable conditionally defines the I_SYS_PARAM symbol, and indicates
3159 whether a C program should include <sys/param.h>.
3161 i_syspoll (i_syspoll.U):
3162 This variable conditionally defines the I_SYS_POLL symbol, which
3163 indicates to the C program that it should include <sys/poll.h>.
3165 i_sysresrc (i_sysresrc.U):
3166 This variable conditionally defines the I_SYS_RESOURCE symbol,
3167 and indicates whether a C program should include <sys/resource.h>.
3169 i_syssecrt (i_syssecrt.U):
3170 This variable conditionally defines the I_SYS_SECURITY symbol,
3171 and indicates whether a C program should include <sys/security.h>.
3173 i_sysselct (i_sysselct.U):
3174 This variable conditionally defines I_SYS_SELECT, which indicates
3175 to the C program that it should include <sys/select.h> in order to
3176 get the definition of struct timeval.
3178 i_syssockio (i_sysioctl.U):
3179 This variable conditionally defines I_SYS_SOCKIO to indicate to the
3180 C program that socket ioctl codes may be found in <sys/sockio.h>
3181 instead of <sys/ioctl.h>.
3183 i_sysstat (i_sysstat.U):
3184 This variable conditionally defines the I_SYS_STAT symbol,
3185 and indicates whether a C program should include <sys/stat.h>.
3187 i_sysstatfs (i_sysstatfs.U):
3188 This variable conditionally defines the I_SYSSTATFS symbol,
3189 and indicates whether a C program should include <sys/statfs.h>.
3191 i_sysstatvfs (i_sysstatvfs.U):
3192 This variable conditionally defines the I_SYSSTATVFS symbol,
3193 and indicates whether a C program should include <sys/statvfs.h>.
3195 i_systime (i_time.U):
3196 This variable conditionally defines I_SYS_TIME, which indicates
3197 to the C program that it should include <sys/time.h>.
3199 i_systimek (i_time.U):
3200 This variable conditionally defines I_SYS_TIME_KERNEL, which
3201 indicates to the C program that it should include <sys/time.h>
3202 with KERNEL defined.
3204 i_systimes (i_systimes.U):
3205 This variable conditionally defines the I_SYS_TIMES symbol, and indicates
3206 whether a C program should include <sys/times.h>.
3208 i_systypes (i_systypes.U):
3209 This variable conditionally defines the I_SYS_TYPES symbol,
3210 and indicates whether a C program should include <sys/types.h>.
3212 i_sysuio (i_sysuio.U):
3213 This variable conditionally defines the I_SYSUIO symbol, and indicates
3214 whether a C program should include <sys/uio.h>.
3216 i_sysun (i_sysun.U):
3217 This variable conditionally defines I_SYS_UN, which indicates
3218 to the C program that it should include <sys/un.h> to get UNIX
3219 domain socket definitions.
3221 i_sysutsname (i_sysutsname.U):
3222 This variable conditionally defines the I_SYSUTSNAME symbol,
3223 and indicates whether a C program should include <sys/utsname.h>.
3225 i_sysvfs (i_sysvfs.U):
3226 This variable conditionally defines the I_SYSVFS symbol,
3227 and indicates whether a C program should include <sys/vfs.h>.
3229 i_syswait (i_syswait.U):
3230 This variable conditionally defines I_SYS_WAIT, which indicates
3231 to the C program that it should include <sys/wait.h>.
3233 i_termio (i_termio.U):
3234 This variable conditionally defines the I_TERMIO symbol, which
3235 indicates to the C program that it should include <termio.h> rather
3238 i_termios (i_termio.U):
3239 This variable conditionally defines the I_TERMIOS symbol, which
3240 indicates to the C program that the POSIX <termios.h> file is
3244 This variable conditionally defines I_TIME, which indicates
3245 to the C program that it should include <time.h>.
3247 i_unistd (i_unistd.U):
3248 This variable conditionally defines the I_UNISTD symbol, and indicates
3249 whether a C program should include <unistd.h>.
3251 i_ustat (i_ustat.U):
3252 This variable conditionally defines the I_USTAT symbol, and indicates
3253 whether a C program should include <ustat.h>.
3255 i_utime (i_utime.U):
3256 This variable conditionally defines the I_UTIME symbol, and indicates
3257 whether a C program should include <utime.h>.
3259 i_values (i_values.U):
3260 This variable conditionally defines the I_VALUES symbol, and indicates
3261 whether a C program may include <values.h> to get symbols like MAXLONG
3264 i_varargs (i_varhdr.U):
3265 This variable conditionally defines I_VARARGS, which indicates
3266 to the C program that it should include <varargs.h>.
3268 i_varhdr (i_varhdr.U):
3269 Contains the name of the header to be included to get va_dcl definition.
3270 Typically one of varargs.h or stdarg.h.
3272 i_vfork (i_vfork.U):
3273 This variable conditionally defines the I_VFORK symbol, and indicates
3274 whether a C program should include vfork.h.
3276 ignore_versioned_solibs (libs.U):
3277 This variable should be non-empty if non-versioned shared
3278 libraries (libfoo.so.x.y) are to be ignored (because they
3279 cannot be linked against).
3281 inc_version_list (inc_version_list.U):
3282 This variable specifies the list of subdirectories in over
3283 which perl.c:incpush() and lib/lib.pm will automatically
3284 search when adding directories to @INC. The elements in
3285 the list are separated by spaces. This is only useful
3286 if you have a perl library directory tree structured like the
3287 default one. See INSTALL for how this works. The versioned
3288 site_perl directory was introduced in 5.005, so that is the
3289 lowest possible value.
3291 This list includes architecture-dependent directories back to
3292 version $api_versionstring (e.g. 5.5.640) and
3293 architecture-independent directories all the way back to
3296 inc_version_list_init (inc_version_list.U):
3297 This variable holds the same list as inc_version_list, but
3298 each item is enclosed in double quotes and separated by commas,
3299 suitable for use in the PERL_INC_VERSION_LIST initialization.
3302 This variable must preceed the normal include path to get hte
3303 right one, as in "$incpath/usr/include" or "$incpath/usr/lib".
3304 Value can be "" or "/bsd43" on mips.
3307 This variable is defined but not used by Configure.
3308 The value is the empty string and is not useful.
3310 initialinstalllocation (bin.U):
3311 When userelocatableinc is true, this variable holds the location
3312 that make install should copy the perl binary to, with all the
3313 run-time relocatable paths calculated from this at install time.
3314 When used, it is initialised to the original value of binexp, and
3315 then binexp is set to '.../', as the other binaries are found
3316 relative to the perl binary.
3318 installarchlib (archlib.U):
3319 This variable is really the same as archlibexp but may differ on
3320 those systems using AFS. For extra portability, only this variable
3321 should be used in makefiles.
3324 This variable is the same as binexp unless AFS is running in which case
3325 the user is explicitely prompted for it. This variable should always
3326 be used in your makefiles for maximum portability.
3328 installhtml1dir (html1dir.U):
3329 This variable is really the same as html1direxp, unless you are
3330 using a different installprefix. For extra portability, you
3331 should only use this variable within your makefiles.
3333 installhtml3dir (html3dir.U):
3334 This variable is really the same as html3direxp, unless you are
3335 using a different installprefix. For extra portability, you
3336 should only use this variable within your makefiles.
3338 installman1dir (man1dir.U):
3339 This variable is really the same as man1direxp, unless you are using
3340 AFS in which case it points to the read/write location whereas
3341 man1direxp only points to the read-only access location. For extra
3342 portability, you should only use this variable within your makefiles.
3344 installman3dir (man3dir.U):
3345 This variable is really the same as man3direxp, unless you are using
3346 AFS in which case it points to the read/write location whereas
3347 man3direxp only points to the read-only access location. For extra
3348 portability, you should only use this variable within your makefiles.
3350 installprefix (installprefix.U):
3351 This variable holds the name of the directory below which
3352 "make install" will install the package. For most users, this
3353 is the same as prefix. However, it is useful for
3354 installing the software into a different (usually temporary)
3355 location after which it can be bundled up and moved somehow
3356 to the final location specified by prefix.
3358 installprefixexp (installprefix.U):
3359 This variable holds the full absolute path of installprefix
3360 with all ~-expansion done.
3362 installprivlib (privlib.U):
3363 This variable is really the same as privlibexp but may differ on
3364 those systems using AFS. For extra portability, only this variable
3365 should be used in makefiles.
3367 installscript (scriptdir.U):
3368 This variable is usually the same as scriptdirexp, unless you are on
3369 a system running AFS, in which case they may differ slightly. You
3370 should always use this variable within your makefiles for portability.
3372 installsitearch (sitearch.U):
3373 This variable is really the same as sitearchexp but may differ on
3374 those systems using AFS. For extra portability, only this variable
3375 should be used in makefiles.
3377 installsitebin (sitebin.U):
3378 This variable is usually the same as sitebinexp, unless you are on
3379 a system running AFS, in which case they may differ slightly. You
3380 should always use this variable within your makefiles for portability.
3382 installsitehtml1dir (sitehtml1dir.U):
3383 This variable is really the same as sitehtml1direxp, unless you are using
3384 AFS in which case it points to the read/write location whereas
3385 html1direxp only points to the read-only access location. For extra
3386 portability, you should only use this variable within your makefiles.
3388 installsitehtml3dir (sitehtml3dir.U):
3389 This variable is really the same as sitehtml3direxp, unless you are using
3390 AFS in which case it points to the read/write location whereas
3391 html3direxp only points to the read-only access location. For extra
3392 portability, you should only use this variable within your makefiles.
3394 installsitelib (sitelib.U):
3395 This variable is really the same as sitelibexp but may differ on
3396 those systems using AFS. For extra portability, only this variable
3397 should be used in makefiles.
3399 installsiteman1dir (siteman1dir.U):
3400 This variable is really the same as siteman1direxp, unless you are using
3401 AFS in which case it points to the read/write location whereas
3402 man1direxp only points to the read-only access location. For extra
3403 portability, you should only use this variable within your makefiles.
3405 installsiteman3dir (siteman3dir.U):
3406 This variable is really the same as siteman3direxp, unless you are using
3407 AFS in which case it points to the read/write location whereas
3408 man3direxp only points to the read-only access location. For extra
3409 portability, you should only use this variable within your makefiles.
3411 installsitescript (sitescript.U):
3412 This variable is usually the same as sitescriptexp, unless you are on
3413 a system running AFS, in which case they may differ slightly. You
3414 should always use this variable within your makefiles for portability.
3416 installstyle (installstyle.U):
3417 This variable describes the "style" of the perl installation.
3418 This is intended to be useful for tools that need to
3419 manipulate entire perl distributions. Perl itself doesn't use
3420 this to find its libraries -- the library directories are
3421 stored directly in Config.pm. Currently, there are only two
3422 styles: "lib" and "lib/perl5". The default library locations
3423 (e.g. privlib, sitelib) are either $prefix/lib or
3424 $prefix/lib/perl5. The former is useful if $prefix is a
3425 directory dedicated to perl (e.g. /opt/perl), while the latter
3426 is useful if $prefix is shared by many packages, e.g. if
3429 Unfortunately, while this "style" variable is used to set
3430 defaults for all three directory hierarchies (core, vendor, and
3431 site), there is no guarantee that the same style is actually
3432 appropriate for all those directories. For example, $prefix
3433 might be /opt/perl, but $siteprefix might be /usr/local.
3434 (Perhaps, in retrospect, the "lib" style should never have been
3435 supported, but it did seem like a nice idea at the time.)
3437 The situation is even less clear for tools such as MakeMaker
3438 that can be used to install additional modules into
3439 non-standard places. For example, if a user intends to install
3440 a module into a private directory (perhaps by setting PREFIX on
3441 the Makefile.PL command line), then there is no reason to
3442 assume that the Configure-time $installstyle setting will be
3443 relevant for that PREFIX.
3445 This may later be extended to include other information, so
3446 be careful with pattern-matching on the results.
3448 For compatibility with perl5.005 and earlier, the default
3449 setting is based on whether or not $prefix contains the string
3452 installusrbinperl (instubperl.U):
3453 This variable tells whether Perl should be installed also as
3454 /usr/bin/perl in addition to
3457 installvendorarch (vendorarch.U):
3458 This variable is really the same as vendorarchexp but may differ on
3459 those systems using AFS. For extra portability, only this variable
3460 should be used in makefiles.
3462 installvendorbin (vendorbin.U):
3463 This variable is really the same as vendorbinexp but may differ on
3464 those systems using AFS. For extra portability, only this variable
3465 should be used in makefiles.
3467 installvendorhtml1dir (vendorhtml1dir.U):
3468 This variable is really the same as vendorhtml1direxp but may differ on
3469 those systems using AFS. For extra portability, only this variable
3470 should be used in makefiles.
3472 installvendorhtml3dir (vendorhtml3dir.U):
3473 This variable is really the same as vendorhtml3direxp but may differ on
3474 those systems using AFS. For extra portability, only this variable
3475 should be used in makefiles.
3477 installvendorlib (vendorlib.U):
3478 This variable is really the same as vendorlibexp but may differ on
3479 those systems using AFS. For extra portability, only this variable
3480 should be used in makefiles.
3482 installvendorman1dir (vendorman1dir.U):
3483 This variable is really the same as vendorman1direxp but may differ on
3484 those systems using AFS. For extra portability, only this variable
3485 should be used in makefiles.
3487 installvendorman3dir (vendorman3dir.U):
3488 This variable is really the same as vendorman3direxp but may differ on
3489 those systems using AFS. For extra portability, only this variable
3490 should be used in makefiles.
3492 installvendorscript (vendorscript.U):
3493 This variable is really the same as vendorscriptexp but may differ on
3494 those systems using AFS. For extra portability, only this variable
3495 should be used in makefiles.
3497 intsize (intsize.U):
3498 This variable contains the value of the INTSIZE symbol, which
3499 indicates to the C program how many bytes there are in an int.
3501 issymlink (issymlink.U):
3502 This variable holds the test command to test for a symbolic link
3503 (if they are supported). Typical values include 'test -h' and
3506 ivdformat (perlxvf.U):
3507 This variable contains the format string used for printing
3508 a Perl IV as a signed decimal integer.
3511 This variable is the size of an IV in bytes.
3514 This variable contains the C type used for Perl's IV.
3516 known_extensions (Extensions.U):
3517 This variable holds a list of all XS extensions included in
3521 This variable is defined but not used by Configure.
3522 The value is the empty string and is not useful.
3525 This variable indicates the program to be used to link
3526 libraries for dynamic loading. On some systems, it is 'ld'.
3527 On ELF systems, it should be $cc. Mostly, we'll try to respect
3528 the hint file setting.
3530 lddlflags (dlsrc.U):
3531 This variable contains any special flags that might need to be
3532 passed to $ld to create a shared library suitable for dynamic
3533 loading. It is up to the makefile to use it. For hpux, it
3534 should be '-b'. For sunos 4.1, it is empty.
3536 ldflags (ccflags.U):
3537 This variable contains any additional C loader flags desired by
3538 the user. It is up to the Makefile to use this.
3540 ldflags_uselargefiles (uselfs.U):
3541 This variable contains the loader flags needed by large file builds
3542 and added to ldflags by hints files.
3544 ldlibpthname (libperl.U):
3545 This variable holds the name of the shared library
3546 search path, often LD_LIBRARY_PATH. To get an empty
3547 string, the hints file must set this to 'none'.
3550 This variable is used internally by Configure to determine the
3551 full pathname (if any) of the less program. After Configure runs,
3552 the value is reset to a plain "less" and is not useful.
3555 This is an old synonym for _a.
3558 This variable contains the location of the C library.
3560 libperl (libperl.U):
3561 The perl executable is obtained by linking perlmain.c with
3562 libperl, any static extensions (usually just DynaLoader),
3563 and any other libraries needed on this system. libperl
3564 is usually libperl.a, but can also be libperl.so.xxx if
3565 the user wishes to build a perl executable with a shared
3569 This variable holds the general path (space-separated) used to find
3570 libraries. It is intended to be used by other units.
3573 This variable holds the additional libraries we want to use.
3574 It is up to the Makefile to deal with it. The list can be empty.
3577 This variable holds the directory names aka dirnames of the libraries
3578 we found and accepted, duplicates are removed.
3581 This variable holds the filenames aka basenames of the libraries
3582 we found and accepted.
3585 This variable holds the full pathnames of the libraries
3586 we found and accepted.
3589 This variable holds the directory names probed for libraries.
3591 libswanted (Myinit.U):
3592 This variable holds a list of all the libraries we want to
3593 search. The order is chosen to pick up the c library
3594 ahead of ucb or bsd libraries for SVR4.
3596 libswanted_uselargefiles (uselfs.U):
3597 This variable contains the libraries needed by large file builds
3598 and added to ldflags by hints files. It is a space separated list
3599 of the library names without the "lib" prefix or any suffix, just
3603 This variable is defined but not used by Configure.
3604 The value is the empty string and is not useful.
3607 This variable is defined but not used by Configure.
3608 The value is the empty string and is not useful.
3610 lkflags (ccflags.U):
3611 This variable contains any additional C partial linker flags desired by
3612 the user. It is up to the Makefile to use this.
3615 This variable is used internally by Configure to determine the
3616 full pathname (if any) of the ln program. After Configure runs,
3617 the value is reset to a plain "ln" and is not useful.
3620 This variable holds the name of the command to make
3621 symbolic links (if they are supported). It can be used
3622 in the Makefile. It is either 'ln -s' or 'ln'
3624 localtime_r_proto (d_localtime_r.U):
3625 This variable encodes the prototype of localtime_r.
3626 It is zero if d_localtime_r is undef, and one of the
3627 REENTRANT_PROTO_T_ABC macros of reentr.h if d_localtime_r
3630 locincpth (ccflags.U):
3631 This variable contains a list of additional directories to be
3632 searched by the compiler. The appropriate '-I' directives will
3633 be added to ccflags. This is intended to simplify setting
3634 local directories from the Configure command line.
3635 It's not much, but it parallels the loclibpth stuff in libpth.U.
3637 loclibpth (libpth.U):
3638 This variable holds the paths (space-separated) used to find local
3639 libraries. It is prepended to libpth, and is intended to be easily
3640 set from the command line.
3642 longdblsize (d_longdbl.U):
3643 This variable contains the value of the LONG_DOUBLESIZE symbol, which
3644 indicates to the C program how many bytes there are in a long double,
3645 if this system supports long doubles.
3647 longlongsize (d_longlong.U):
3648 This variable contains the value of the LONGLONGSIZE symbol, which
3649 indicates to the C program how many bytes there are in a long long,
3650 if this system supports long long.
3652 longsize (intsize.U):
3653 This variable contains the value of the LONGSIZE symbol, which
3654 indicates to the C program how many bytes there are in a long.
3657 This variable is defined but not used by Configure.
3658 The value is the empty string and is not useful.
3661 This variable is defined but not used by Configure.
3662 The value is the empty string and is not useful.
3665 This variable is used internally by Configure to determine the
3666 full pathname (if any) of the ls program. After Configure runs,
3667 the value is reset to a plain "ls" and is not useful.
3669 lseeksize (lseektype.U):
3670 This variable defines lseektype to be something like off_t, long,
3671 or whatever type is used to declare lseek offset's type in the
3672 kernel (which also appears to be lseek's return type).
3674 lseektype (lseektype.U):
3675 This variable defines lseektype to be something like off_t, long,
3676 or whatever type is used to declare lseek offset's type in the
3677 kernel (which also appears to be lseek's return type).
3680 This variable indicates that the Misc Attribute Definition code is to
3684 If the Misc Attribute Decoration is to be compiled, this variable is
3685 set to the name of the extra header files to be used, else it is ''
3688 If the Misc Attribute Decoration is to be compiled, this variable is
3689 set to the name of the extra object files to be used, else it is ''
3692 If the Misc Attribute Decoration is to be compiled, this variable is
3693 set to the name of the extra C source files to be used, else it is ''
3696 This variable is defined but not used by Configure.
3697 The value is the empty string and is not useful.
3700 This variable is defined but not used by Configure.
3701 The value is the empty string and is not useful.
3704 This variable is used internally by Configure to determine the
3705 full pathname (if any) of the make program. After Configure runs,
3706 the value is reset to a plain "make" and is not useful.
3708 make_set_make (make.U):
3709 Some versions of 'make' set the variable MAKE. Others do not.
3710 This variable contains the string to be included in Makefile.SH
3711 so that MAKE is set if needed, and not if not needed.
3712 Possible values are:
3714 make_set_make='#' # If your make program handles this for you,
3716 make_set_make="MAKE=$make" # if it doesn't.
3718 This uses a comment character so that we can distinguish a
3719 'set' value (from a previous config.sh or Configure '-D' option)
3720 from an uncomputed value.
3722 mallocobj (mallocsrc.U):
3723 This variable contains the name of the malloc.o that this package
3724 generates, if that malloc.o is preferred over the system malloc.
3725 Otherwise the value is null. This variable is intended for generating
3726 Makefiles. See mallocsrc.
3728 mallocsrc (mallocsrc.U):
3729 This variable contains the name of the malloc.c that comes with
3730 the package, if that malloc.c is preferred over the system malloc.
3731 Otherwise the value is null. This variable is intended for generating
3734 malloctype (mallocsrc.U):
3735 This variable contains the kind of ptr returned by malloc and realloc.
3737 man1dir (man1dir.U):
3738 This variable contains the name of the directory in which manual
3739 source pages are to be put. It is the responsibility of the
3740 Makefile.SH to get the value of this into the proper command.
3741 You must be prepared to do the ~name expansion yourself.
3743 man1direxp (man1dir.U):
3744 This variable is the same as the man1dir variable, but is filename
3745 expanded at configuration time, for convenient use in makefiles.
3747 man1ext (man1dir.U):
3748 This variable contains the extension that the manual page should
3749 have: one of 'n', 'l', or '1'. The Makefile must supply the '.'.
3752 man3dir (man3dir.U):
3753 This variable contains the name of the directory in which manual
3754 source pages are to be put. It is the responsibility of the
3755 Makefile.SH to get the value of this into the proper command.
3756 You must be prepared to do the ~name expansion yourself.
3758 man3direxp (man3dir.U):
3759 This variable is the same as the man3dir variable, but is filename
3760 expanded at configuration time, for convenient use in makefiles.
3762 man3ext (man3dir.U):
3763 This variable contains the extension that the manual page should
3764 have: one of 'n', 'l', or '3'. The Makefile must supply the '.'.
3767 mips_type (usrinc.U):
3768 This variable holds the environment type for the mips system.
3769 Possible values are "BSD 4.3" and "System V".
3771 mistrustnm (Csym.U):
3772 This variable can be used to establish a fallthrough for the cases
3773 where nm fails to find a symbol. If usenm is false or usenm is true
3774 and mistrustnm is false, this variable has no effect. If usenm is true
3775 and mistrustnm is "compile", a test program will be compiled to try to
3776 find any symbol that can't be located via nm lookup. If mistrustnm is
3777 "run", the test program will be run as well as being compiled.
3780 This variable is used internally by Configure to determine the
3781 full pathname (if any) of the mkdir program. After Configure runs,
3782 the value is reset to a plain "mkdir" and is not useful.
3784 mmaptype (d_mmap.U):
3785 This symbol contains the type of pointer returned by mmap()
3786 (and simultaneously the type of the first argument).
3787 It can be 'void *' or 'caddr_t'.
3789 modetype (modetype.U):
3790 This variable defines modetype to be something like mode_t,
3791 int, unsigned short, or whatever type is used to declare file
3792 modes for system calls.
3795 This variable is used internally by Configure to determine the
3796 full pathname (if any) of the more program. After Configure runs,
3797 the value is reset to a plain "more" and is not useful.
3799 multiarch (multiarch.U):
3800 This variable conditionally defines the MULTIARCH symbol
3801 which signifies the presence of multiplatform files.
3802 This is normally set by hints files.
3805 This variable is defined but not used by Configure.
3806 The value is the empty string and is not useful.
3808 myarchname (archname.U):
3809 This variable holds the architecture name computed by Configure in
3810 a previous run. It is not intended to be perused by any user and
3811 should never be set in a hint file.
3813 mydomain (myhostname.U):
3814 This variable contains the eventual value of the MYDOMAIN symbol,
3815 which is the domain of the host the program is going to run on.
3816 The domain must be appended to myhostname to form a complete host name.
3817 The dot comes with mydomain, and need not be supplied by the program.
3819 myhostname (myhostname.U):
3820 This variable contains the eventual value of the MYHOSTNAME symbol,
3821 which is the name of the host the program is going to run on.
3822 The domain is not kept with hostname, but must be gotten from mydomain.
3823 The dot comes with mydomain, and need not be supplied by the program.
3825 myuname (Oldconfig.U):
3826 The output of 'uname -a' if available, otherwise the hostname. On Xenix,
3827 pseudo variables assignments in the output are stripped, thank you. The
3828 whole thing is then lower-cased.
3831 This variable contains the '-n' flag if that is what causes the echo
3832 command to suppress newline. Otherwise it is null. Correct usage is
3833 $echo $n "prompt for a question: $c".
3835 need_va_copy (need_va_copy.U):
3836 This symbol, if defined, indicates that the system stores
3837 the variable argument list datatype, va_list, in a format
3838 that cannot be copied by simple assignment, so that some
3839 other means must be used when copying is required.
3840 As such systems vary in their provision (or non-provision)
3841 of copying mechanisms, handy.h defines a platform-
3842 independent macro, Perl_va_copy(src, dst), to do the job.
3844 netdb_hlen_type (netdbtype.U):
3845 This variable holds the type used for the 2nd argument to
3846 gethostbyaddr(). Usually, this is int or size_t or unsigned.
3847 This is only useful if you have gethostbyaddr(), naturally.
3849 netdb_host_type (netdbtype.U):
3850 This variable holds the type used for the 1st argument to
3851 gethostbyaddr(). Usually, this is char * or void *, possibly
3852 with or without a const prefix.
3853 This is only useful if you have gethostbyaddr(), naturally.
3855 netdb_name_type (netdbtype.U):
3856 This variable holds the type used for the argument to
3857 gethostbyname(). Usually, this is char * or const char *.
3858 This is only useful if you have gethostbyname(), naturally.
3860 netdb_net_type (netdbtype.U):
3861 This variable holds the type used for the 1st argument to
3862 getnetbyaddr(). Usually, this is int or long.
3863 This is only useful if you have getnetbyaddr(), naturally.
3866 This variable is used internally by Configure to determine the
3867 full pathname (if any) of the nm program. After Configure runs,
3868 the value is reset to a plain "nm" and is not useful.
3871 This variable holds the options that may be necessary for nm.
3873 nm_so_opt (usenm.U):
3874 This variable holds the options that may be necessary for nm
3875 to work on a shared library but that can not be used on an
3876 archive library. Currently, this is only used by Linux, where
3877 nm --dynamic is *required* to get symbols from an ELF library which
3878 has been stripped, but nm --dynamic is *fatal* on an archive library.
3879 Maybe Linux should just always set usenm=false.
3881 nonxs_ext (Extensions.U):
3882 This variable holds a list of all non-xs extensions included
3883 in the package. All of them will be built.
3886 This variable is used internally by Configure to determine the
3887 full pathname (if any) of the nroff program. After Configure runs,
3888 the value is reset to a plain "nroff" and is not useful.
3890 nv_overflows_integers_at (perlxv.U):
3891 This variable gives the largest integer value that NVs can hold
3892 as a constant floating point expression.
3893 If it could not be determined, it holds the value 0.
3895 nv_preserves_uv_bits (perlxv.U):
3896 This variable indicates how many of bits type uvtype
3897 a variable nvtype can preserve.
3899 nveformat (perlxvf.U):
3900 This variable contains the format string used for printing
3901 a Perl NV using %e-ish floating point format.
3903 nvEUformat (perlxvf.U):
3904 This variable contains the format string used for printing
3905 a Perl NV using %E-ish floating point format.
3907 nvfformat (perlxvf.U):
3908 This variable confains the format string used for printing
3909 a Perl NV using %f-ish floating point format.
3911 nvFUformat (perlxvf.U):
3912 This variable confains the format string used for printing
3913 a Perl NV using %F-ish floating point format.
3915 nvgformat (perlxvf.U):
3916 This variable contains the format string used for printing
3917 a Perl NV using %g-ish floating point format.
3919 nvGUformat (perlxvf.U):
3920 This variable contains the format string used for printing
3921 a Perl NV using %G-ish floating point format.
3924 This variable is the size of an NV in bytes.
3927 This variable contains the C type used for Perl's NV.
3929 o_nonblock (nblock_io.U):
3930 This variable bears the symbol value to be used during open() or fcntl()
3931 to turn on non-blocking I/O for a file descriptor. If you wish to switch
3932 between blocking and non-blocking, you may try ioctl(FIOSNBIO) instead,
3933 but that is only supported by some devices.
3936 This is an old synonym for _o.
3938 old_pthread_create_joinable (d_pthrattrj.U):
3939 This variable defines the constant to use for creating joinable
3940 (aka undetached) pthreads. Unused if pthread.h defines
3941 PTHREAD_CREATE_JOINABLE. If used, possible values are
3942 PTHREAD_CREATE_UNDETACHED and __UNDETACHED.
3944 optimize (ccflags.U):
3945 This variable contains any optimizer/debugger flag that should be used.
3946 It is up to the Makefile to use it.
3948 orderlib (orderlib.U):
3949 This variable is "true" if the components of libraries must be ordered
3950 (with `lorder $* | tsort`) before placing them in an archive. Set to
3951 "false" if ranlib or ar can generate random libraries.
3953 osname (Oldconfig.U):
3954 This variable contains the operating system name (e.g. sunos,
3955 solaris, hpux, etc.). It can be useful later on for setting
3956 defaults. Any spaces are replaced with underscores. It is set
3957 to a null string if we can't figure it out.
3959 osvers (Oldconfig.U):
3960 This variable contains the operating system version (e.g.
3961 4.1.3, 5.2, etc.). It is primarily used for helping select
3962 an appropriate hints file, but might be useful elsewhere for
3963 setting defaults. It is set to '' if we can't figure it out.
3964 We try to be flexible about how much of the version number
3965 to keep, e.g. if 4.1.1, 4.1.2, and 4.1.3 are essentially the
3966 same for this package, hints files might just be os_4.0 or
3967 os_4.1, etc., not keeping separate files for each little release.
3969 otherlibdirs (otherlibdirs.U):
3970 This variable contains a colon-separated set of paths for the perl
3971 binary to search for additional library files or modules.
3972 These directories will be tacked to the end of @INC.
3973 Perl will automatically search below each path for version-
3974 and architecture-specific directories. See inc_version_list
3976 A value of ' ' means 'none' and is used to preserve this value
3977 for the next run through Configure.
3979 package (package.U):
3980 This variable contains the name of the package being constructed.
3981 It is primarily intended for the use of later Configure units.
3984 This variable contains the name of the preferred pager on the system.
3985 Usual values are (the full pathnames of) more, less, pg, or cat.
3988 This variable contains a command that produces the text of the
3989 /etc/passwd file. This is normally "cat /etc/passwd", but can be
3990 "ypcat passwd" when NIS is used.
3991 On some systems, such as os390, there may be no equivalent
3992 command, in which case this variable is unset.
3994 patchlevel (patchlevel.U):
3995 The patchlevel level of this package.
3996 The value of patchlevel comes from the patchlevel.h file.
3997 In a version number such as 5.6.1, this is the "6".
3998 In patchlevel.h, this is referred to as "PERL_VERSION".
4001 This is an old synonym for p_ in Head.U, the character
4002 used to separate elements in the command shell search PATH.
4005 This variable is defined but not used by Configure.
4006 The value is the empty string and is not useful.
4009 This variable contains the full path (if any) to a previously
4010 installed perl5.005 or later suitable for running the script
4011 to determine inc_version_list.
4013 PERL_API_REVISION (patchlevel.h):
4014 This number describes the earliest compatible PERL_REVISION of
4015 Perl ("compatibility" here being defined as sufficient binary/API
4016 compatibility to run XS code built with the older version).
4017 Normally this does not change across maintenance releases.
4018 Please read the comment in patchlevel.h.
4020 PERL_API_SUBVERSION (patchlevel.h):
4021 This number describes the earliest compatible PERL_SUBVERSION of
4022 Perl ("compatibility" here being defined as sufficient binary/API
4023 compatibility to run XS code built with the older version).
4024 Normally this does not change across maintenance releases.
4025 Please read the comment in patchlevel.h.
4027 PERL_API_VERSION (patchlevel.h):
4028 This number describes the earliest compatible PERL_VERSION of
4029 Perl ("compatibility" here being defined as sufficient binary/API
4030 compatibility to run XS code built with the older version).
4031 Normally this does not change across maintenance releases.
4032 Please read the comment in patchlevel.h.
4034 PERL_CONFIG_SH (Oldsyms.U):
4035 This is set to 'true' in config.sh so that a shell script
4036 sourcing config.sh can tell if it has been sourced already.
4038 PERL_PATCHLEVEL (Oldsyms.U):
4039 This symbol reflects the patchlevel, if available. Will usually
4040 come from the .patch file, which is available when the perl
4041 source tree was fetched with rsync.
4043 perl_patchlevel (patchlevel.U):
4044 This is the Perl patch level, a numeric change identifier,
4045 as defined by whichever source code maintenance system
4046 is used to maintain the patches; currently Perforce.
4047 It does not correlate with the Perl version numbers or
4048 the maintenance versus development dichotomy except
4049 by also being increasing.
4051 PERL_REVISION (Oldsyms.U):
4052 In a Perl version number such as 5.6.2, this is the 5.
4053 This value is manually set in patchlevel.h
4055 PERL_SUBVERSION (Oldsyms.U):
4056 In a Perl version number such as 5.6.2, this is the 2.
4057 Values greater than 50 represent potentially unstable
4058 development subversions.
4059 This value is manually set in patchlevel.h
4061 PERL_VERSION (Oldsyms.U):
4062 In a Perl version number such as 5.6.2, this is the 6.
4063 This value is manually set in patchlevel.h
4065 perladmin (perladmin.U):
4066 Electronic mail address of the perl5 administrator.
4069 The list of libraries needed by Perl only (any libraries needed
4070 by extensions only will by dropped, if using dynamic loading).
4072 perlpath (perlpath.U):
4073 This variable contains the eventual value of the PERLPATH symbol,
4074 which contains the name of the perl interpreter to be used in
4075 shell scripts and in the "eval 'exec'" idiom. This variable is
4076 not necessarily the pathname of the file containing the perl
4077 interpreter; you must append the executable extension (_exe) if
4078 it is not already present. Note that Perl code that runs during
4079 the Perl build process cannot reference this variable, as Perl
4080 may not have been installed, or even if installed, may be a
4081 different version of Perl.
4084 This variable is used internally by Configure to determine the
4085 full pathname (if any) of the pg program. After Configure runs,
4086 the value is reset to a plain "pg" and is not useful.
4088 phostname (myhostname.U):
4089 This variable contains the eventual value of the PHOSTNAME symbol,
4090 which is a command that can be fed to popen() to get the host name.
4091 The program should probably not presume that the domain is or isn't
4094 pidtype (pidtype.U):
4095 This variable defines PIDTYPE to be something like pid_t, int,
4096 ushort, or whatever type is used to declare process ids in the kernel.
4099 Holds the private path used by Configure to find out the libraries.
4100 Its value is prepend to libpth. This variable takes care of special
4101 machines, like the mips. Usually, it should be empty.
4104 This variable is defined but not used by Configure.
4105 The value is the empty string and is not useful.
4108 This variable is defined but not used by Configure.
4109 The value is the empty string and is not useful.
4112 This variable holds the name of the directory below which the
4113 user will install the package. Usually, this is /usr/local, and
4114 executables go in /usr/local/bin, library stuff in /usr/local/lib,
4115 man pages in /usr/local/man, etc. It is only used to set defaults
4116 for things in bin.U, mansrc.U, privlib.U, or scriptdir.U.
4118 prefixexp (prefix.U):
4119 This variable holds the full absolute path of the directory below
4120 which the user will install the package. Derived from prefix.
4122 privlib (privlib.U):
4123 This variable contains the eventual value of the PRIVLIB symbol,
4124 which is the name of the private library for this package. It may
4125 have a ~ on the front. It is up to the makefile to eventually create
4126 this directory while performing installation (with ~ substitution).
4128 privlibexp (privlib.U):
4129 This variable is the ~name expanded version of privlib, so that you
4130 may use it directly in Makefiles or shell scripts.
4132 procselfexe (d_procselfexe.U):
4133 If d_procselfexe is defined, $procselfexe is the filename
4134 of the symbolic link pointing to the absolute pathname of
4135 the executing program.
4137 prototype (prototype.U):
4138 This variable holds the eventual value of CAN_PROTOTYPE, which
4139 indicates the C compiler can handle funciton prototypes.
4141 ptrsize (ptrsize.U):
4142 This variable contains the value of the PTRSIZE symbol, which
4143 indicates to the C program how many bytes there are in a pointer.
4145 quadkind (quadtype.U):
4146 This variable, if defined, encodes the type of a quad:
4147 1 = int, 2 = long, 3 = long long, 4 = int64_t.
4149 quadtype (quadtype.U):
4150 This variable defines Quad_t to be something like long, int,
4151 long long, int64_t, or whatever type is used for 64-bit integers.
4153 randbits (randfunc.U):
4154 Indicates how many bits are produced by the function used to
4155 generate normalized random numbers.
4157 randfunc (randfunc.U):
4158 Indicates the name of the random number function to use.
4159 Values include drand48, random, and rand. In C programs,
4160 the 'Drand01' macro is defined to generate uniformly distributed
4161 random numbers over the range [0., 1.[ (see drand01 and nrand).
4163 random_r_proto (d_random_r.U):
4164 This variable encodes the prototype of random_r.
4165 It is zero if d_random_r is undef, and one of the
4166 REENTRANT_PROTO_T_ABC macros of reentr.h if d_random_r
4169 randseedtype (randfunc.U):
4170 Indicates the type of the argument of the seedfunc.
4172 ranlib (orderlib.U):
4173 This variable is set to the pathname of the ranlib program, if it is
4174 needed to generate random libraries. Set to ":" if ar can generate
4175 random libraries or if random libraries are not supported
4177 rd_nodata (nblock_io.U):
4178 This variable holds the return code from read() when no data is
4179 present. It should be -1, but some systems return 0 when O_NDELAY is
4180 used, which is a shame because you cannot make the difference between
4181 no data and an EOF.. Sigh!
4183 readdir64_r_proto (d_readdir64_r.U):
4184 This variable encodes the prototype of readdir64_r.
4185 It is zero if d_readdir64_r is undef, and one of the
4186 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir64_r
4189 readdir_r_proto (d_readdir_r.U):
4190 This variable encodes the prototype of readdir_r.
4191 It is zero if d_readdir_r is undef, and one of the
4192 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir_r
4195 revision (patchlevel.U):
4196 The value of revision comes from the patchlevel.h file.
4197 In a version number such as 5.6.1, this is the "5".
4198 In patchlevel.h, this is referred to as "PERL_REVISION".
4201 This variable is used internally by Configure to determine the
4202 full pathname (if any) of the rm program. After Configure runs,
4203 the value is reset to a plain "rm" and is not useful.
4206 This is a cleanup variable for try test programs.
4207 Internal Configure use only.
4210 This variable is defined but not used by Configure.
4211 The value is the empty string and is not useful.
4214 This variable contains the command used by Configure
4215 to copy and execute a cross-compiled executable in the
4216 target host. Useful and available only during Perl build.
4217 Empty string '' if not cross-compiling.
4220 This variable contains 'true' or 'false' depending whether the
4221 nm extraction should be performed or not, according to the value
4222 of usenm and the flags on the Configure command line.
4224 sched_yield (d_pthread_y.U):
4225 This variable defines the way to yield the execution
4226 of the current thread.
4228 scriptdir (scriptdir.U):
4229 This variable holds the name of the directory in which the user wants
4230 to put publicly scripts for the package in question. It is either
4231 the same directory as for binaries, or a special one that can be
4232 mounted across different architectures, like /usr/share. Programs
4233 must be prepared to deal with ~name expansion.
4235 scriptdirexp (scriptdir.U):
4236 This variable is the same as scriptdir, but is filename expanded
4237 at configuration time, for programs not wanting to bother with it.
4240 This variable is used internally by Configure to determine the
4241 full pathname (if any) of the sed program. After Configure runs,
4242 the value is reset to a plain "sed" and is not useful.
4244 seedfunc (randfunc.U):
4245 Indicates the random number generating seed function.
4246 Values include srand48, srandom, and srand.
4248 selectminbits (selectminbits.U):
4249 This variable holds the minimum number of bits operated by select.
4250 That is, if you do select(n, ...), how many bits at least will be
4251 cleared in the masks if some activity is detected. Usually this
4252 is either n or 32*ceil(n/32), especially many little-endians do
4253 the latter. This is only useful if you have select(), naturally.
4255 selecttype (selecttype.U):
4256 This variable holds the type used for the 2nd, 3rd, and 4th
4257 arguments to select. Usually, this is 'fd_set *', if HAS_FD_SET
4258 is defined, and 'int *' otherwise. This is only useful if you
4259 have select(), naturally.
4262 This variable is defined but not used by Configure.
4263 The value is the empty string and is not useful.
4265 setgrent_r_proto (d_setgrent_r.U):
4266 This variable encodes the prototype of setgrent_r.
4267 It is zero if d_setgrent_r is undef, and one of the
4268 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setgrent_r
4271 sethostent_r_proto (d_sethostent_r.U):
4272 This variable encodes the prototype of sethostent_r.
4273 It is zero if d_sethostent_r is undef, and one of the
4274 REENTRANT_PROTO_T_ABC macros of reentr.h if d_sethostent_r
4277 setlocale_r_proto (d_setlocale_r.U):
4278 This variable encodes the prototype of setlocale_r.
4279 It is zero if d_setlocale_r is undef, and one of the
4280 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setlocale_r
4283 setnetent_r_proto (d_setnetent_r.U):
4284 This variable encodes the prototype of setnetent_r.
4285 It is zero if d_setnetent_r is undef, and one of the
4286 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setnetent_r
4289 setprotoent_r_proto (d_setprotoent_r.U):
4290 This variable encodes the prototype of setprotoent_r.
4291 It is zero if d_setprotoent_r is undef, and one of the
4292 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setprotoent_r
4295 setpwent_r_proto (d_setpwent_r.U):
4296 This variable encodes the prototype of setpwent_r.
4297 It is zero if d_setpwent_r is undef, and one of the
4298 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setpwent_r
4301 setservent_r_proto (d_setservent_r.U):
4302 This variable encodes the prototype of setservent_r.
4303 It is zero if d_setservent_r is undef, and one of the
4304 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setservent_r
4307 sGMTIME_max (time_size.U):
4308 This variable defines the maximum value of the time_t offset that
4309 the system function gmtime () accepts
4311 sGMTIME_min (time_size.U):
4312 This variable defines the minimum value of the time_t offset that
4313 the system function gmtime () accepts
4316 This variable contains the full pathname of the shell used
4317 on this system to execute Bourne shell scripts. Usually, this will be
4318 /bin/sh, though it's possible that some systems will have /bin/ksh,
4319 /bin/pdksh, /bin/ash, /bin/bash, or even something such as
4321 This unit comes before Options.U, so you can't set sh with a '-D'
4322 option, though you can override this (and startsh)
4323 with '-O -Dsh=/bin/whatever -Dstartsh=whatever'
4326 This variable is defined but not used by Configure.
4327 The value is the empty string and is not useful.
4329 sharpbang (spitshell.U):
4330 This variable contains the string #! if this system supports that
4333 shmattype (d_shmat.U):
4334 This symbol contains the type of pointer returned by shmat().
4335 It can be 'void *' or 'char *'.
4337 shortsize (intsize.U):
4338 This variable contains the value of the SHORTSIZE symbol which
4339 indicates to the C program how many bytes there are in a short.
4341 shrpenv (libperl.U):
4342 If the user builds a shared libperl.so, then we need to tell the
4343 'perl' executable where it will be able to find the installed libperl.so.
4344 One way to do this on some systems is to set the environment variable
4345 LD_RUN_PATH to the directory that will be the final location of the
4346 shared libperl.so. The makefile can use this with something like
4347 $shrpenv $(CC) -o perl perlmain.o $libperl $libs
4349 shrpenv="env LD_RUN_PATH=$archlibexp/CORE"
4352 See the main perl Makefile.SH for actual working usage.
4353 Alternatively, we might be able to use a command line option such
4354 as -R $archlibexp/CORE (Solaris) or -Wl,-rpath
4355 $archlibexp/CORE (Linux).
4357 shsharp (spitshell.U):
4358 This variable tells further Configure units whether your sh can
4361 sig_count (sig_name.U):
4362 This variable holds a number larger than the largest valid
4363 signal number. This is usually the same as the NSIG macro.
4365 sig_name (sig_name.U):
4366 This variable holds the signal names, space separated. The leading
4367 SIG in signal name is removed. A ZERO is prepended to the list.
4368 This is currently not used, sig_name_init is used instead.
4370 sig_name_init (sig_name.U):
4371 This variable holds the signal names, enclosed in double quotes and
4372 separated by commas, suitable for use in the SIG_NAME definition
4373 below. A "ZERO" is prepended to the list, and the list is
4374 terminated with a plain 0. The leading SIG in signal names
4375 is removed. See sig_num.
4377 sig_num (sig_name.U):
4378 This variable holds the signal numbers, space separated. A ZERO is
4379 prepended to the list (corresponding to the fake SIGZERO).
4380 Those numbers correspond to the value of the signal listed
4381 in the same place within the sig_name list.
4382 This is currently not used, sig_num_init is used instead.
4384 sig_num_init (sig_name.U):
4385 This variable holds the signal numbers, enclosed in double quotes and
4386 separated by commas, suitable for use in the SIG_NUM definition
4387 below. A "ZERO" is prepended to the list, and the list is
4388 terminated with a plain 0.
4390 sig_size (sig_name.U):
4391 This variable contains the number of elements of the sig_name
4394 signal_t (d_voidsig.U):
4395 This variable holds the type of the signal handler (void or int).
4397 sitearch (sitearch.U):
4398 This variable contains the eventual value of the SITEARCH symbol,
4399 which is the name of the private library for this package. It may
4400 have a ~ on the front. It is up to the makefile to eventually create
4401 this directory while performing installation (with ~ substitution).
4402 The standard distribution will put nothing in this directory.
4403 After perl has been installed, users may install their own local
4404 architecture-dependent modules in this directory with
4405 MakeMaker Makefile.PL
4406 or equivalent. See INSTALL for details.
4408 sitearchexp (sitearch.U):
4409 This variable is the ~name expanded version of sitearch, so that you
4410 may use it directly in Makefiles or shell scripts.
4412 sitebin (sitebin.U):
4413 This variable holds the name of the directory in which the user wants
4414 to put add-on publicly executable files for the package in question. It
4415 is most often a local directory such as /usr/local/bin. Programs using
4416 this variable must be prepared to deal with ~name substitution.
4417 The standard distribution will put nothing in this directory.
4418 After perl has been installed, users may install their own local
4419 executables in this directory with
4420 MakeMaker Makefile.PL
4421 or equivalent. See INSTALL for details.
4423 sitebinexp (sitebin.U):
4424 This is the same as the sitebin variable, but is filename expanded at
4425 configuration time, for use in your makefiles.
4427 sitehtml1dir (sitehtml1dir.U):
4428 This variable contains the name of the directory in which site-specific
4429 html source pages are to be put. It is the responsibility of the
4430 Makefile.SH to get the value of this into the proper command.
4431 You must be prepared to do the ~name expansion yourself.
4432 The standard distribution will put nothing in this directory.
4433 After perl has been installed, users may install their own local
4434 html pages in this directory with
4435 MakeMaker Makefile.PL
4436 or equivalent. See INSTALL for details.
4438 sitehtml1direxp (sitehtml1dir.U):
4439 This variable is the same as the sitehtml1dir variable, but is filename
4440 expanded at configuration time, for convenient use in makefiles.
4442 sitehtml3dir (sitehtml3dir.U):
4443 This variable contains the name of the directory in which site-specific
4444 library html source pages are to be put. It is the responsibility of the
4445 Makefile.SH to get the value of this into the proper command.
4446 You must be prepared to do the ~name expansion yourself.
4447 The standard distribution will put nothing in this directory.
4448 After perl has been installed, users may install their own local
4449 library html pages in this directory with
4450 MakeMaker Makefile.PL
4451 or equivalent. See INSTALL for details.
4453 sitehtml3direxp (sitehtml3dir.U):
4454 This variable is the same as the sitehtml3dir variable, but is filename
4455 expanded at configuration time, for convenient use in makefiles.
4457 sitelib (sitelib.U):
4458 This variable contains the eventual value of the SITELIB symbol,
4459 which is the name of the private library for this package. It may
4460 have a ~ on the front. It is up to the makefile to eventually create
4461 this directory while performing installation (with ~ substitution).
4462 The standard distribution will put nothing in this directory.
4463 After perl has been installed, users may install their own local
4464 architecture-independent modules in this directory with
4465 MakeMaker Makefile.PL
4466 or equivalent. See INSTALL for details.
4468 sitelib_stem (sitelib.U):
4469 This variable is $sitelibexp with any trailing version-specific component
4470 removed. The elements in inc_version_list (inc_version_list.U) can
4471 be tacked onto this variable to generate a list of directories to search.
4473 sitelibexp (sitelib.U):
4474 This variable is the ~name expanded version of sitelib, so that you
4475 may use it directly in Makefiles or shell scripts.
4477 siteman1dir (siteman1dir.U):
4478 This variable contains the name of the directory in which site-specific
4479 manual source pages are to be put. It is the responsibility of the
4480 Makefile.SH to get the value of this into the proper command.
4481 You must be prepared to do the ~name expansion yourself.
4482 The standard distribution will put nothing in this directory.
4483 After perl has been installed, users may install their own local
4484 man1 pages in this directory with
4485 MakeMaker Makefile.PL
4486 or equivalent. See INSTALL for details.
4488 siteman1direxp (siteman1dir.U):
4489 This variable is the same as the siteman1dir variable, but is filename
4490 expanded at configuration time, for convenient use in makefiles.
4492 siteman3dir (siteman3dir.U):
4493 This variable contains the name of the directory in which site-specific
4494 library man source pages are to be put. It is the responsibility of the
4495 Makefile.SH to get the value of this into the proper command.
4496 You must be prepared to do the ~name expansion yourself.
4497 The standard distribution will put nothing in this directory.
4498 After perl has been installed, users may install their own local
4499 man3 pages in this directory with
4500 MakeMaker Makefile.PL
4501 or equivalent. See INSTALL for details.
4503 siteman3direxp (siteman3dir.U):
4504 This variable is the same as the siteman3dir variable, but is filename
4505 expanded at configuration time, for convenient use in makefiles.
4507 siteprefix (siteprefix.U):
4508 This variable holds the full absolute path of the directory below
4509 which the user will install add-on packages.
4510 See INSTALL for usage and examples.
4512 siteprefixexp (siteprefix.U):
4513 This variable holds the full absolute path of the directory below
4514 which the user will install add-on packages. Derived from siteprefix.
4516 sitescript (sitescript.U):
4517 This variable holds the name of the directory in which the user wants
4518 to put add-on publicly executable files for the package in question. It
4519 is most often a local directory such as /usr/local/bin. Programs using
4520 this variable must be prepared to deal with ~name substitution.
4521 The standard distribution will put nothing in this directory.
4522 After perl has been installed, users may install their own local
4523 scripts in this directory with
4524 MakeMaker Makefile.PL
4525 or equivalent. See INSTALL for details.
4527 sitescriptexp (sitescript.U):
4528 This is the same as the sitescript variable, but is filename expanded at
4529 configuration time, for use in your makefiles.
4531 sizesize (sizesize.U):
4532 This variable contains the size of a sizetype in bytes.
4534 sizetype (sizetype.U):
4535 This variable defines sizetype to be something like size_t,
4536 unsigned long, or whatever type is used to declare length
4537 parameters for string functions.
4540 This variable is defined but not used by Configure.
4541 The value is the empty string and is not useful.
4543 sLOCALTIME_max (time_size.U):
4544 This variable defines the maximum value of the time_t offset that
4545 the system function localtime () accepts
4547 sLOCALTIME_min (time_size.U):
4548 This variable defines the minimum value of the time_t offset that
4549 the system function localtime () accepts
4552 This variable is defined but not used by Configure.
4553 The value is the empty string and is not useful.
4556 This variable holds the extension used to identify shared libraries
4557 (also known as shared objects) on the system. Usually set to 'so'.
4559 sockethdr (d_socket.U):
4560 This variable has any cpp '-I' flags needed for socket support.
4562 socketlib (d_socket.U):
4563 This variable has the names of any libraries needed for socket support.
4565 socksizetype (socksizetype.U):
4566 This variable holds the type used for the size argument
4567 for various socket calls like accept. Usual values include
4568 socklen_t, size_t, and int.
4571 This variable is used internally by Configure to determine the
4572 full pathname (if any) of the sort program. After Configure runs,
4573 the value is reset to a plain "sort" and is not useful.
4575 spackage (package.U):
4576 This variable contains the name of the package being constructed,
4577 with the first letter uppercased, i.e. suitable for starting
4580 spitshell (spitshell.U):
4581 This variable contains the command necessary to spit out a runnable
4582 shell on this system. It is either cat or a grep '-v' for # comments.
4584 sPRId64 (quadfio.U):
4585 This variable, if defined, contains the string used by stdio to
4586 format 64-bit decimal numbers (format 'd') for output.
4588 sPRIeldbl (longdblfio.U):
4589 This variable, if defined, contains the string used by stdio to
4590 format long doubles (format 'e') for output.
4592 sPRIEUldbl (longdblfio.U):
4593 This variable, if defined, contains the string used by stdio to
4594 format long doubles (format 'E') for output.
4595 The 'U' in the name is to separate this from sPRIeldbl so that even
4596 case-blind systems can see the difference.
4598 sPRIfldbl (longdblfio.U):
4599 This variable, if defined, contains the string used by stdio to
4600 format long doubles (format 'f') for output.
4602 sPRIFUldbl (longdblfio.U):
4603 This variable, if defined, contains the string used by stdio to
4604 format long doubles (format 'F') for output.
4605 The 'U' in the name is to separate this from sPRIfldbl so that even
4606 case-blind systems can see the difference.
4608 sPRIgldbl (longdblfio.U):
4609 This variable, if defined, contains the string used by stdio to
4610 format long doubles (format 'g') for output.
4612 sPRIGUldbl (longdblfio.U):
4613 This variable, if defined, contains the string used by stdio to
4614 format long doubles (format 'G') for output.
4615 The 'U' in the name is to separate this from sPRIgldbl so that even
4616 case-blind systems can see the difference.
4618 sPRIi64 (quadfio.U):
4619 This variable, if defined, contains the string used by stdio to
4620 format 64-bit decimal numbers (format 'i') for output.
4622 sPRIo64 (quadfio.U):
4623 This variable, if defined, contains the string used by stdio to
4624 format 64-bit octal numbers (format 'o') for output.
4626 sPRIu64 (quadfio.U):
4627 This variable, if defined, contains the string used by stdio to
4628 format 64-bit unsigned decimal numbers (format 'u') for output.
4630 sPRIx64 (quadfio.U):
4631 This variable, if defined, contains the string used by stdio to
4632 format 64-bit hexadecimal numbers (format 'x') for output.
4634 sPRIXU64 (quadfio.U):
4635 This variable, if defined, contains the string used by stdio to
4636 format 64-bit hExADECimAl numbers (format 'X') for output.
4637 The 'U' in the name is to separate this from sPRIx64 so that even
4638 case-blind systems can see the difference.
4640 srand48_r_proto (d_srand48_r.U):
4641 This variable encodes the prototype of srand48_r.
4642 It is zero if d_srand48_r is undef, and one of the
4643 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srand48_r
4646 srandom_r_proto (d_srandom_r.U):
4647 This variable encodes the prototype of srandom_r.
4648 It is zero if d_srandom_r is undef, and one of the
4649 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srandom_r
4653 This variable holds the (possibly relative) path of the package source.
4654 It is up to the Makefile to use this variable and set VPATH accordingly
4655 to find the sources remotely. Use $pkgsrc to have an absolute path.
4657 sSCNfldbl (longdblfio.U):
4658 This variable, if defined, contains the string used by stdio to
4659 format long doubles (format 'f') for input.
4661 ssizetype (ssizetype.U):
4662 This variable defines ssizetype to be something like ssize_t,
4663 long or int. It is used by functions that return a count
4664 of bytes or an error condition. It must be a signed type.
4665 We will pick a type such that sizeof(SSize_t) == sizeof(Size_t).
4667 startperl (startperl.U):
4668 This variable contains the string to put on the front of a perl
4669 script to make sure (hopefully) that it runs with perl and not some
4670 shell. Of course, that leading line must be followed by the classical
4672 eval 'exec perl -S $0 ${1+"$@"}'
4673 if $running_under_some_shell;
4674 to guarantee perl startup should the shell execute the script. Note
4675 that this magic incatation is not understood by csh.
4677 startsh (startsh.U):
4678 This variable contains the string to put on the front of a shell
4679 script to make sure (hopefully) that it runs with sh and not some
4682 static_ext (Extensions.U):
4683 This variable holds a list of XS extension files we want to
4684 link statically into the package. It is used by Makefile.
4686 stdchar (stdchar.U):
4687 This variable conditionally defines STDCHAR to be the type of char
4688 used in stdio.h. It has the values "unsigned char" or "char".
4690 stdio_base (d_stdstdio.U):
4691 This variable defines how, given a FILE pointer, fp, to access the
4692 _base field (or equivalent) of stdio.h's FILE structure. This will
4693 be used to define the macro FILE_base(fp).
4695 stdio_bufsiz (d_stdstdio.U):
4696 This variable defines how, given a FILE pointer, fp, to determine
4697 the number of bytes store in the I/O buffer pointer to by the
4698 _base field (or equivalent) of stdio.h's FILE structure. This will
4699 be used to define the macro FILE_bufsiz(fp).
4701 stdio_cnt (d_stdstdio.U):
4702 This variable defines how, given a FILE pointer, fp, to access the
4703 _cnt field (or equivalent) of stdio.h's FILE structure. This will
4704 be used to define the macro FILE_cnt(fp).
4706 stdio_filbuf (d_stdstdio.U):
4707 This variable defines how, given a FILE pointer, fp, to tell
4708 stdio to refill its internal buffers (?). This will
4709 be used to define the macro FILE_filbuf(fp).
4711 stdio_ptr (d_stdstdio.U):
4712 This variable defines how, given a FILE pointer, fp, to access the
4713 _ptr field (or equivalent) of stdio.h's FILE structure. This will
4714 be used to define the macro FILE_ptr(fp).
4716 stdio_stream_array (stdio_streams.U):
4717 This variable tells the name of the array holding the stdio streams.
4718 Usual values include _iob, __iob, and __sF.
4720 strerror_r_proto (d_strerror_r.U):
4721 This variable encodes the prototype of strerror_r.
4722 It is zero if d_strerror_r is undef, and one of the
4723 REENTRANT_PROTO_T_ABC macros of reentr.h if d_strerror_r
4726 strings (i_string.U):
4727 This variable holds the full path of the string header that will be
4728 used. Typically /usr/include/string.h or /usr/include/strings.h.
4731 This variable is defined but not used by Configure.
4732 The value is the empty string and is not useful.
4734 subversion (patchlevel.U):
4735 The subversion level of this package.
4736 The value of subversion comes from the patchlevel.h file.
4737 In a version number such as 5.6.1, this is the "1".
4738 In patchlevel.h, this is referred to as "PERL_SUBVERSION".
4739 This is unique to perl.
4742 This variable holds the place where the manual is located on this
4743 system. It is not the place where the user wants to put his manual
4744 pages. Rather it is the place where Configure may look to find manual
4745 for unix commands (section 1 of the manual usually). See mansrc.
4748 This variable is defined but not used by Configure.
4749 The value is the empty string and is not useful.
4752 This variable is defined but not used by Configure.
4753 The value is the empty string and is not useful.
4755 targetarch (Cross.U):
4756 If cross-compiling, this variable contains the target architecture.
4757 If not, this will be empty.
4760 This variable is defined but not used by Configure.
4761 The value is the empty string and is not useful.
4764 This variable is defined but not used by Configure.
4765 The value is the empty string and is not useful.
4768 This variable is used internally by Configure to determine the
4769 full pathname (if any) of the test program. After Configure runs,
4770 the value is reset to a plain "test" and is not useful.
4772 timeincl (i_time.U):
4773 This variable holds the full path of the included time header(s).
4775 timetype (d_time.U):
4776 This variable holds the type returned by time(). It can be long,
4777 or time_t on BSD sites (in which case <sys/types.h> should be
4778 included). Anyway, the type Time_t should be used.
4780 tmpnam_r_proto (d_tmpnam_r.U):
4781 This variable encodes the prototype of tmpnam_r.
4782 It is zero if d_tmpnam_r is undef, and one of the
4783 REENTRANT_PROTO_T_ABC macros of reentr.h if d_tmpnam_r
4787 This variable contains the command used by Configure
4788 to copy to from the target host. Useful and available
4789 only during Perl build.
4790 The string ':' if not cross-compiling.
4793 This variable is used internally by Configure to determine the
4794 full pathname (if any) of the touch program. After Configure runs,
4795 the value is reset to a plain "touch" and is not useful.
4798 This variable is used internally by Configure to determine the
4799 full pathname (if any) of the tr program. After Configure runs,
4800 the value is reset to a plain "tr" and is not useful.
4803 This variable contains the value to be passed to the tr(1)
4804 command to transliterate a newline. Typical values are
4805 '\012' and '\n'. This is needed for EBCDIC systems where
4806 newline is not necessarily '\012'.
4809 This variable is defined but not used by Configure.
4810 The value is the empty string and is not useful.
4812 ttyname_r_proto (d_ttyname_r.U):
4813 This variable encodes the prototype of ttyname_r.
4814 It is zero if d_ttyname_r is undef, and one of the
4815 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ttyname_r
4819 This variable is the size of an U16 in bytes.
4822 This variable contains the C type used for Perl's U16.
4825 This variable is the size of an U32 in bytes.
4828 This variable contains the C type used for Perl's U32.
4831 This variable is the size of an U64 in bytes.
4834 This variable contains the C type used for Perl's U64.
4837 This variable is the size of an U8 in bytes.
4840 This variable contains the C type used for Perl's U8.
4843 This variable contains the format string used for printing a Uid_t.
4845 uidsign (uidsign.U):
4846 This variable contains the signedness of a uidtype.
4847 1 for unsigned, -1 for signed.
4849 uidsize (uidsize.U):
4850 This variable contains the size of a uidtype in bytes.
4852 uidtype (uidtype.U):
4853 This variable defines Uid_t to be something like uid_t, int,
4854 ushort, or whatever type is used to declare user ids in the kernel.
4857 This variable is used internally by Configure to determine the
4858 full pathname (if any) of the uname program. After Configure runs,
4859 the value is reset to a plain "uname" and is not useful.
4862 This variable is used internally by Configure to determine the
4863 full pathname (if any) of the uniq program. After Configure runs,
4864 the value is reset to a plain "uniq" and is not useful.
4866 uquadtype (quadtype.U):
4867 This variable defines Uquad_t to be something like unsigned long,
4868 unsigned int, unsigned long long, uint64_t, or whatever type is
4869 used for 64-bit integers.
4871 use5005threads (usethreads.U):
4872 This variable conditionally defines the USE_5005THREADS symbol,
4873 and indicates that Perl should be built to use the 5.005-based
4874 threading implementation. Only valid up to 5.8.x.
4876 use64bitall (use64bits.U):
4877 This variable conditionally defines the USE_64_BIT_ALL symbol,
4878 and indicates that 64-bit integer types should be used
4879 when available. The maximal possible
4880 64-bitness is employed: LP64 or ILP64, meaning that you will
4881 be able to use more than 2 gigabytes of memory. This mode is
4882 even more binary incompatible than USE_64_BIT_INT. You may not
4883 be able to run the resulting executable in a 32-bit CPU at all or
4884 you may need at least to reboot your OS to 64-bit mode.
4886 use64bitint (use64bits.U):
4887 This variable conditionally defines the USE_64_BIT_INT symbol,
4888 and indicates that 64-bit integer types should be used
4889 when available. The minimal possible 64-bitness
4890 is employed, just enough to get 64-bit integers into Perl.
4891 This may mean using for example "long longs", while your memory
4892 may still be limited to 2 gigabytes.
4894 usecrosscompile (Cross.U):
4895 This variable conditionally defines the USE_CROSS_COMPILE symbol,
4896 and indicates that Perl has been cross-compiled.
4899 This variable indicates that Perl was configured with development
4900 features enabled. This should not be done for production builds.
4903 This variable indicates if the system supports dynamic
4904 loading of some sort. See also dlsrc and dlobj.
4906 usedtrace (usedtrace.U):
4907 This variable indicates whether we are compiling with dtrace
4908 support. See also dtrace.
4910 usefaststdio (usefaststdio.U):
4911 This variable conditionally defines the USE_FAST_STDIO symbol,
4912 and indicates that Perl should be built to use 'fast stdio'.
4913 Defaults to define in Perls 5.8 and earlier, to undef later.
4915 useithreads (usethreads.U):
4916 This variable conditionally defines the USE_ITHREADS symbol,
4917 and indicates that Perl should be built to use the interpreter-based
4918 threading implementation.
4920 uselargefiles (uselfs.U):
4921 This variable conditionally defines the USE_LARGE_FILES symbol,
4922 and indicates that large file interfaces should be used when
4925 uselongdouble (uselongdbl.U):
4926 This variable conditionally defines the USE_LONG_DOUBLE symbol,
4927 and indicates that long doubles should be used when available.
4929 usemallocwrap (mallocsrc.U):
4930 This variable contains y if we are wrapping malloc to prevent
4931 integer overflow during size calculations.
4933 usemorebits (usemorebits.U):
4934 This variable conditionally defines the USE_MORE_BITS symbol,
4935 and indicates that explicit 64-bit interfaces and long doubles
4936 should be used when available.
4938 usemultiplicity (usemultiplicity.U):
4939 This variable conditionally defines the MULTIPLICITY symbol,
4940 and indicates that Perl should be built to use multiplicity.
4942 usemymalloc (mallocsrc.U):
4943 This variable contains y if the malloc that comes with this package
4944 is desired over the system's version of malloc. People often include
4945 special versions of malloc for effiency, but such versions are often
4946 less portable. See also mallocsrc and mallocobj.
4947 If this is 'y', then -lmalloc is removed from $libs.
4950 This variable contains 'true' or 'false' depending whether the
4951 nm extraction is wanted or not.
4953 useopcode (Extensions.U):
4954 This variable holds either 'true' or 'false' to indicate
4955 whether the Opcode extension should be used. The sole
4956 use for this currently is to allow an easy mechanism
4957 for users to skip the Opcode extension from the Configure
4960 useperlio (useperlio.U):
4961 This variable conditionally defines the USE_PERLIO symbol,
4962 and indicates that the PerlIO abstraction should be
4965 useposix (Extensions.U):
4966 This variable holds either 'true' or 'false' to indicate
4967 whether the POSIX extension should be used. The sole
4968 use for this currently is to allow an easy mechanism
4969 for hints files to indicate that POSIX will not compile
4970 on a particular system.
4972 usereentrant (usethreads.U):
4973 This variable conditionally defines the USE_REENTRANT_API symbol,
4974 which indicates that the thread code may try to use the various
4975 _r versions of library functions. This is only potentially
4976 meaningful if usethreads is set and is very experimental, it is
4977 not even prompted for.
4979 userelocatableinc (bin.U):
4980 This variable is set to true to indicate that perl should relocate
4981 @INC entries at runtime based on the path to the perl binary.
4982 Any @INC paths starting ".../" are relocated relative to the directory
4983 containing the perl binary, and a logical cleanup of the path is then
4984 made around the join point (removing "dir/../" pairs)
4987 This variable is set to true when the user agrees to use sfio.
4988 It is set to false when sfio is not available or when the user
4989 explicitely requests not to use sfio. It is here primarily so
4990 that command-line settings can override the auto-detection of
4991 d_sfio without running into a "WHOA THERE".
4993 useshrplib (libperl.U):
4994 This variable is set to 'true' if the user wishes
4995 to build a shared libperl, and 'false' otherwise.
4997 usesitecustomize (d_sitecustomize.U):
4998 This variable is set to true when the user requires a mechanism that
4999 allows the sysadmin to add entries to @INC at runtime. This variable
5000 being set, makes perl run '$sitelib/sitecustomize.pl' at startup.
5002 usesocks (usesocks.U):
5003 This variable conditionally defines the USE_SOCKS symbol,
5004 and indicates that Perl should be built to use SOCKS.
5006 usethreads (usethreads.U):
5007 This variable conditionally defines the USE_THREADS symbol,
5008 and indicates that Perl should be built to use threads.
5010 usevendorprefix (vendorprefix.U):
5011 This variable tells whether the vendorprefix
5012 and consequently other vendor* paths are in use.
5014 usevfork (d_vfork.U):
5015 This variable is set to true when the user accepts to use vfork.
5016 It is set to false when no vfork is available or when the user
5017 explicitely requests not to use vfork.
5020 This variable holds the path of the include files, which is
5021 usually /usr/include. It is mainly used by other Configure units.
5024 This variable is defined but not used by Configure.
5025 The value is the empty string and is not useful.
5027 uvoformat (perlxvf.U):
5028 This variable contains the format string used for printing
5029 a Perl UV as an unsigned octal integer.
5032 This variable is the size of a UV in bytes.
5035 This variable contains the C type used for Perl's UV.
5037 uvuformat (perlxvf.U):
5038 This variable contains the format string used for printing
5039 a Perl UV as an unsigned decimal integer.
5041 uvxformat (perlxvf.U):
5042 This variable contains the format string used for printing
5043 a Perl UV as an unsigned hexadecimal integer in lowercase abcdef.
5045 uvXUformat (perlxvf.U):
5046 This variable contains the format string used for printing
5047 a Perl UV as an unsigned hexadecimal integer in uppercase ABCDEF.
5049 vendorarch (vendorarch.U):
5050 This variable contains the value of the PERL_VENDORARCH symbol.
5051 It may have a ~ on the front.
5052 The standard distribution will put nothing in this directory.
5053 Vendors who distribute perl may wish to place their own
5054 architecture-dependent modules and extensions in this directory with
5055 MakeMaker Makefile.PL INSTALLDIRS=vendor
5056 or equivalent. See INSTALL for details.
5058 vendorarchexp (vendorarch.U):
5059 This variable is the ~name expanded version of vendorarch, so that you
5060 may use it directly in Makefiles or shell scripts.
5062 vendorbin (vendorbin.U):
5063 This variable contains the eventual value of the VENDORBIN symbol.
5064 It may have a ~ on the front.
5065 The standard distribution will put nothing in this directory.
5066 Vendors who distribute perl may wish to place additional
5067 binaries in this directory with
5068 MakeMaker Makefile.PL INSTALLDIRS=vendor
5069 or equivalent. See INSTALL for details.
5071 vendorbinexp (vendorbin.U):
5072 This variable is the ~name expanded version of vendorbin, so that you
5073 may use it directly in Makefiles or shell scripts.
5075 vendorhtml1dir (vendorhtml1dir.U):
5076 This variable contains the name of the directory for html
5077 pages. It may have a ~ on the front.
5078 The standard distribution will put nothing in this directory.
5079 Vendors who distribute perl may wish to place their own
5080 html pages in this directory with
5081 MakeMaker Makefile.PL INSTALLDIRS=vendor
5082 or equivalent. See INSTALL for details.
5084 vendorhtml1direxp (vendorhtml1dir.U):
5085 This variable is the ~name expanded version of vendorhtml1dir, so that you
5086 may use it directly in Makefiles or shell scripts.
5088 vendorhtml3dir (vendorhtml3dir.U):
5089 This variable contains the name of the directory for html
5090 library pages. It may have a ~ on the front.
5091 The standard distribution will put nothing in this directory.
5092 Vendors who distribute perl may wish to place their own
5093 html pages for modules and extensions in this directory with
5094 MakeMaker Makefile.PL INSTALLDIRS=vendor
5095 or equivalent. See INSTALL for details.
5097 vendorhtml3direxp (vendorhtml3dir.U):
5098 This variable is the ~name expanded version of vendorhtml3dir, so that you
5099 may use it directly in Makefiles or shell scripts.
5101 vendorlib (vendorlib.U):
5102 This variable contains the eventual value of the VENDORLIB symbol,
5103 which is the name of the private library for this package.
5104 The standard distribution will put nothing in this directory.
5105 Vendors who distribute perl may wish to place their own
5106 modules in this directory with
5107 MakeMaker Makefile.PL INSTALLDIRS=vendor
5108 or equivalent. See INSTALL for details.
5110 vendorlib_stem (vendorlib.U):
5111 This variable is $vendorlibexp with any trailing version-specific component
5112 removed. The elements in inc_version_list (inc_version_list.U) can
5113 be tacked onto this variable to generate a list of directories to search.
5115 vendorlibexp (vendorlib.U):
5116 This variable is the ~name expanded version of vendorlib, so that you
5117 may use it directly in Makefiles or shell scripts.
5119 vendorman1dir (vendorman1dir.U):
5120 This variable contains the name of the directory for man1
5121 pages. It may have a ~ on the front.
5122 The standard distribution will put nothing in this directory.
5123 Vendors who distribute perl may wish to place their own
5124 man1 pages in this directory with
5125 MakeMaker Makefile.PL INSTALLDIRS=vendor
5126 or equivalent. See INSTALL for details.
5128 vendorman1direxp (vendorman1dir.U):
5129 This variable is the ~name expanded version of vendorman1dir, so that you
5130 may use it directly in Makefiles or shell scripts.
5132 vendorman3dir (vendorman3dir.U):
5133 This variable contains the name of the directory for man3
5134 pages. It may have a ~ on the front.
5135 The standard distribution will put nothing in this directory.
5136 Vendors who distribute perl may wish to place their own
5137 man3 pages in this directory with
5138 MakeMaker Makefile.PL INSTALLDIRS=vendor
5139 or equivalent. See INSTALL for details.
5141 vendorman3direxp (vendorman3dir.U):
5142 This variable is the ~name expanded version of vendorman3dir, so that you
5143 may use it directly in Makefiles or shell scripts.
5145 vendorprefix (vendorprefix.U):
5146 This variable holds the full absolute path of the directory below
5147 which the vendor will install add-on packages.
5148 See INSTALL for usage and examples.
5150 vendorprefixexp (vendorprefix.U):
5151 This variable holds the full absolute path of the directory below
5152 which the vendor will install add-on packages. Derived from vendorprefix.
5154 vendorscript (vendorscript.U):
5155 This variable contains the eventual value of the VENDORSCRIPT symbol.
5156 It may have a ~ on the front.
5157 The standard distribution will put nothing in this directory.
5158 Vendors who distribute perl may wish to place additional
5159 executable scripts in this directory with
5160 MakeMaker Makefile.PL INSTALLDIRS=vendor
5161 or equivalent. See INSTALL for details.
5163 vendorscriptexp (vendorscript.U):
5164 This variable is the ~name expanded version of vendorscript, so that you
5165 may use it directly in Makefiles or shell scripts.
5167 version (patchlevel.U):
5168 The full version number of this package, such as 5.6.1 (or 5_6_1).
5169 This combines revision, patchlevel, and subversion to get the
5170 full version number, including any possible subversions.
5171 This is suitable for use as a directory name, and hence is
5172 filesystem dependent.
5174 version_patchlevel_string (patchlevel.U):
5175 This is a string combining version, subversion and
5176 perl_patchlevel (if perl_patchlevel is non-zero).
5177 It is typically something like
5178 'version 7 subversion 1' or
5179 'version 7 subversion 1 patchlevel 11224'
5180 It is computed here to avoid duplication of code in myconfig.SH
5183 versiononly (versiononly.U):
5184 If set, this symbol indicates that only the version-specific
5185 components of a perl installation should be installed.
5186 This may be useful for making a test installation of a new
5187 version without disturbing the existing installation.
5188 Setting versiononly is equivalent to setting installperl's -v option.
5189 In particular, the non-versioned scripts and programs such as
5190 a2p, c2ph, h2xs, pod2*, and perldoc are not installed
5191 (see INSTALL for a more complete list). Nor are the man
5193 Usually, this is undef.
5196 This variable is defined but not used by Configure.
5197 The value is the empty string and is not useful.
5199 voidflags (voidflags.U):
5200 This variable contains the eventual value of the VOIDFLAGS symbol,
5201 which indicates how much support of the void type is given by this
5202 compiler. See VOIDFLAGS for more info.
5205 This variable holds extra path (space-separated) used to find
5206 libraries on this platform, for example CPU-specific libraries
5207 (on multi-CPU platforms) may be listed here.
5210 This variable holds the name of the compiler compiler we
5211 want to use in the Makefile. It can be yacc, byacc, or bison -y.
5214 This variable contains any additional yacc flags desired by the
5215 user. It is up to the Makefile to use this.
5218 This variable is defined but not used by Configure.
5219 The value is the empty string and is not useful.
5222 This variable is used internally by Configure to determine the
5223 full pathname (if any) of the zip program. After Configure runs,
5224 the value is reset to a plain "zip" and is not useful.