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 Perl 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 archname64 (use64bits.U):
116 This variable is used for the 64-bitness part of $archname.
118 archname (archname.U):
119 This variable is a short name to characterize the current
120 architecture. It is used mainly to construct the default archlib.
123 This variable defines any additional objects that must be linked
124 in with the program on this architecture. On unix, it is usually
125 empty. It is typically used to include emulations of unix calls
126 or other facilities. For perl on OS/2, for example, this would
129 asctime_r_proto (d_asctime_r.U):
130 This variable encodes the prototype of asctime_r.
131 It is zero if d_asctime_r is undef, and one of the
132 REENTRANT_PROTO_T_ABC macros of reentr.h if d_asctime_r
136 This variable is used internally by Configure to determine the
137 full pathname (if any) of the awk program. After Configure runs,
138 the value is reset to a plain "awk" and is not useful.
141 The base revision level of this package, from the .package file.
144 This variable is defined but not used by Configure.
145 The value is a plain '' and is not useful.
148 This variable holds the name of the directory in which the user wants
149 to put publicly executable images for the package in question. It
150 is most often a local directory such as /usr/local/bin. Programs using
151 this variable must be prepared to deal with ~name substitution.
154 This is the same as the bin variable, but is filename expanded at
155 configuration time, for use in your makefiles.
158 This variable is used internally by Configure to determine the
159 full pathname (if any) of the bison program. After Configure runs,
160 the value is reset to a plain "bison" and is not useful.
163 This variable is used internally by Configure to determine the
164 full pathname (if any) of the byacc program. After Configure runs,
165 the value is reset to a plain "byacc" and is not useful.
167 byteorder (byteorder.U):
168 This variable holds the byte order in a UV. In the following,
169 larger digits indicate more significance. The variable byteorder
170 is either 4321 on a big-endian machine, or 1234 on a little-endian,
171 or 87654321 on a Cray ... or 3412 with weird order !
174 This variable contains the \c string if that is what causes the echo
175 command to suppress newline. Otherwise it is null. Correct usage is
176 $echo $n "prompt for a question: $c".
178 castflags (d_castneg.U):
179 This variable contains a flag that precise difficulties the
180 compiler has casting odd floating values to unsigned long:
182 1 = couldn't cast < 0
183 2 = couldn't cast >= 0x80000000
184 4 = couldn't cast in argument expression list
187 This variable is used internally by Configure to determine the
188 full pathname (if any) of the cat program. After Configure runs,
189 the value is reset to a plain "cat" and is not useful.
192 This variable holds the name of a command to execute a C compiler which
193 can resolve multiple global references that happen to have the same
194 name. Usual values are 'cc' and 'gcc'.
195 Fervent ANSI compilers may be called 'c89'. AIX has xlc.
197 cccdlflags (dlsrc.U):
198 This variable contains any special flags that might need to be
199 passed with 'cc -c' to compile modules to be used to create a shared
200 library that will be used for dynamic loading. For hpux, this
201 should be +z. It is up to the makefile to use it.
204 This variable contains any special flags that might need to be
205 passed to cc to link with a shared library for dynamic loading.
206 It is up to the makefile to use it. For sunos 4.1, it should
210 This variable contains any additional C compiler flags desired by
211 the user. It is up to the Makefile to use this.
213 ccflags_uselargefiles (uselfs.U):
214 This variable contains the compiler flags needed by large file builds
215 and added to ccflags by hints files.
218 This can set either by hints files or by Configure. If using
219 gcc, this is gcc, and if not, usually equal to cc, unimpressive, no?
220 Some platforms, however, make good use of this by storing the
221 flavor of the C compiler being used here. For example if using
222 the Sun WorkShop suite, ccname will be 'workshop'.
224 ccsymbols (Cppsym.U):
225 The variable contains the symbols defined by the C compiler alone.
226 The symbols defined by cpp or by cc when it calls cpp are not in
227 this list, see cppsymbols and cppccsymbols.
228 The list is a space-separated list of symbol=value tokens.
230 ccversion (Checkcc.U):
231 This can set either by hints files or by Configure. If using
232 a (non-gcc) vendor cc, this variable may contain a version for
236 Login name of the person who ran the Configure script and answered the
237 questions. This is used to tag both config.sh and config_h.SH.
239 cf_email (cf_email.U):
240 Electronic mail address of the person who ran Configure. This can be
241 used by units that require the user's e-mail, like MailList.U.
244 Holds the output of the "date" command when the configuration file was
245 produced. This is used to tag both config.sh and config_h.SH.
247 charsize (charsize.U):
248 This variable contains the value of the CHARSIZE symbol, which
249 indicates to the C program how many bytes there are in a character.
252 This variable is defined but not used by Configure.
253 The value is a plain '' and is not useful.
256 This variable is used internally by Configure to determine the
257 full pathname (if any) of the chmod program. After Configure runs,
258 the value is reset to a plain "chmod" and is not useful.
261 This variable is defined but not used by Configure.
262 The value is a plain '' and is not useful.
264 clocktype (d_times.U):
265 This variable holds the type returned by times(). It can be long,
266 or clock_t on BSD sites (in which case <sys/types.h> should be
270 This variable is used internally by Configure to determine the
271 full pathname (if any) of the comm program. After Configure runs,
272 the value is reset to a plain "comm" and is not useful.
275 This variable is defined but not used by Configure.
276 The value is a plain '' and is not useful.
278 contains (contains.U):
279 This variable holds the command to do a grep with a proper return
280 status. On most sane systems it is simply "grep". On insane systems
281 it is a grep followed by a cat followed by a test. This variable
282 is primarily for the use of other Configure units.
285 This variable is used internally by Configure to determine the
286 full pathname (if any) of the cp program. After Configure runs,
287 the value is reset to a plain "cp" and is not useful.
290 This variable is defined but not used by Configure.
291 The value is a plain '' and is not useful.
294 This variable is used internally by Configure to determine the
295 full pathname (if any) of the cpp program. After Configure runs,
296 the value is reset to a plain "cpp" and is not useful.
298 cpp_stuff (cpp_stuff.U):
299 This variable contains an identification of the concatenation mechanism
300 used by the C preprocessor.
302 cppccsymbols (Cppsym.U):
303 The variable contains the symbols defined by the C compiler
304 when it calls cpp. The symbols defined by the cc alone or cpp
305 alone are not in this list, see ccsymbols and cppsymbols.
306 The list is a space-separated list of symbol=value tokens.
308 cppflags (ccflags.U):
309 This variable holds the flags that will be passed to the C pre-
310 processor. It is up to the Makefile to use it.
312 cpplast (cppstdin.U):
313 This variable has the same functionality as cppminus, only it applies
314 to cpprun and not cppstdin.
316 cppminus (cppstdin.U):
317 This variable contains the second part of the string which will invoke
318 the C preprocessor on the standard input and produce to standard
319 output. This variable will have the value "-" if cppstdin needs
320 a minus to specify standard input, otherwise the value is "".
323 This variable contains the command which will invoke a C preprocessor
324 on standard input and put the output to stdout. It is guaranteed not
325 to be a wrapper and may be a null string if no preprocessor can be
326 made directly available. This preprocessor might be different from the
327 one used by the C compiler. Don't forget to append cpplast after the
328 preprocessor options.
330 cppstdin (cppstdin.U):
331 This variable contains the command which will invoke the C
332 preprocessor on standard input and put the output to stdout.
333 It is primarily used by other Configure units that ask about
334 preprocessor symbols.
336 cppsymbols (Cppsym.U):
337 The variable contains the symbols defined by the C preprocessor
338 alone. The symbols defined by cc or by cc when it calls cpp are
339 not in this list, see ccsymbols and cppccsymbols.
340 The list is a space-separated list of symbol=value tokens.
342 crypt_r_proto (d_crypt_r.U):
343 This variable encodes the prototype of crypt_r.
344 It is zero if d_crypt_r is undef, and one of the
345 REENTRANT_PROTO_T_ABC macros of reentr.h if d_crypt_r
348 cryptlib (d_crypt.U):
349 This variable holds -lcrypt or the path to a libcrypt.a archive if
350 the crypt() function is not defined in the standard C library. It is
351 up to the Makefile to use this.
354 This variable is used internally by Configure to determine the
355 full pathname (if any) of the csh program. After Configure runs,
356 the value is reset to a plain "csh" and is not useful.
358 ctermid_r_proto (d_ctermid_r.U):
359 This variable encodes the prototype of ctermid_r.
360 It is zero if d_ctermid_r is undef, and one of the
361 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ctermid_r
364 ctime_r_proto (d_ctime_r.U):
365 This variable encodes the prototype of ctime_r.
366 It is zero if d_ctime_r is undef, and one of the
367 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ctime_r
370 d__fwalk (d__fwalk.U):
371 This variable conditionally defines HAS__FWALK if _fwalk() is
372 available to apply a function to all the file handles.
374 d_access (d_access.U):
375 This variable conditionally defines HAS_ACCESS if the access() system
376 call is available to check for access permissions using real IDs.
378 d_accessx (d_accessx.U):
379 This variable conditionally defines the HAS_ACCESSX symbol, which
380 indicates to the C program that the accessx() routine is available.
383 This variable conditionally defines the HAS_AINTL symbol, which
384 indicates to the C program that the aintl() routine is available.
385 If copysignl is also present we can emulate modfl.
388 This variable conditionally defines the HAS_ALARM symbol, which
389 indicates to the C program that the alarm() routine is available.
391 d_archlib (archlib.U):
392 This variable conditionally defines ARCHLIB to hold the pathname
393 of architecture-dependent library files for $package. If
394 $archlib is the same as $privlib, then this is set to undef.
396 d_asctime_r (d_asctime_r.U):
397 This variable conditionally defines the HAS_ASCTIME_R symbol,
398 which indicates to the C program that the asctime_r()
399 routine is available.
402 This variable conditionally defines the HAS_ATOLF symbol, which
403 indicates to the C program that the atolf() routine is available.
406 This variable conditionally defines the HAS_ATOLL symbol, which
407 indicates to the C program that the atoll() routine is available.
409 d_attribute_format (d_attribut_format.U):
410 This variable conditionally defines HASATTRIBUTE_FORMAT, which
411 indicates the C compiler can check for printf-like formats.
413 d_attribute_malloc (d_attribute_malloc.U):
414 This variable conditionally defines HASATTRIBUTE_MALLOC, which
415 indicates the C compiler can understand functions as having
416 malloc-like semantics.
418 d_attribute_nonnull (d_attribute_nonnull.U):
419 This variable conditionally defines HASATTRIBUTE_NONNULL, which
420 indicates that the C compiler can know that certain arguments
421 must not be NULL, and will check accordingly at compile time.
423 d_attribute_noreturn (d_attribute_noreturn.U):
424 This variable conditionally defines HASATTRIBUTE_NORETURN, which
425 indicates that the C compiler can know that certain functions
426 are guaranteed never to return.
428 d_attribute_pure (d_attribute_pure.U):
429 This variable conditionally defines HASATTRIBUTE_PURE, which
430 indicates that the C compiler can know that certain functions
431 are "pure" functions, meaning that they have no side effects, and
432 only rely on function input and/or global data for their results.
434 d_attribute_unused (d_attribute_unused.U):
435 This variable conditionally defines HASATTRIBUTE_UNUSED, which
436 indicates that the C compiler can know that certain variables
437 and arguments may not always be used, and to not throw warnings
438 if they don't get used.
440 d_attribute_warn_unused_result (d_attribute_warn_unused_result.U):
441 This variable conditionally defines
442 HASATTRIBUTE_WARN_UNUSED_RESULT, which indicates that the C
443 compiler can know that certain functions have a return values
444 that must not be ignored, such as malloc() or open().
447 This variable conditionally defines the HAS_BCMP symbol if
448 the bcmp() routine is available to compare strings.
451 This variable conditionally defines the HAS_BCOPY symbol if
452 the bcopy() routine is available to copy strings.
455 This symbol conditionally defines the symbol BSD when running on a
458 d_bsdgetpgrp (d_getpgrp.U):
459 This variable conditionally defines USE_BSD_GETPGRP if
460 getpgrp needs one arguments whereas USG one needs none.
462 d_bsdsetpgrp (d_setpgrp.U):
463 This variable conditionally defines USE_BSD_SETPGRP if
464 setpgrp needs two arguments whereas USG one needs none.
465 See also d_setpgid for a POSIX interface.
468 This variable conditionally defines the HAS_BZERO symbol if
469 the bzero() routine is available to set memory to 0.
471 d_casti32 (d_casti32.U):
472 This variable conditionally defines CASTI32, which indicates
473 whether the C compiler can cast large floats to 32-bit ints.
475 d_castneg (d_castneg.U):
476 This variable conditionally defines CASTNEG, which indicates
477 wether the C compiler can cast negative float to unsigned.
479 d_charvspr (d_vprintf.U):
480 This variable conditionally defines CHARVSPRINTF if this system
481 has vsprintf returning type (char*). The trend seems to be to
482 declare it as "int vsprintf()".
485 This variable conditionally defines the HAS_CHOWN symbol, which
486 indicates to the C program that the chown() routine is available.
488 d_chroot (d_chroot.U):
489 This variable conditionally defines the HAS_CHROOT symbol, which
490 indicates to the C program that the chroot() routine is available.
492 d_chsize (d_chsize.U):
493 This variable conditionally defines the CHSIZE symbol, which
494 indicates to the C program that the chsize() routine is available
495 to truncate files. You might need a -lx to get this routine.
498 This variable conditionally defines the HAS_CLASS symbol, which
499 indicates to the C program that the class() routine is available.
501 d_closedir (d_closedir.U):
502 This variable conditionally defines HAS_CLOSEDIR if closedir() is
505 d_cmsghdr_s (d_cmsghdr_s.U):
506 This variable conditionally defines the HAS_STRUCT_CMSGHDR symbol,
507 which indicates that the struct cmsghdr is supported.
510 This variable conditionally defines the HASCONST symbol, which
511 indicates to the C program that this C compiler knows about the
514 d_copysignl (d_copysignl.U):
515 This variable conditionally defines the HAS_COPYSIGNL symbol, which
516 indicates to the C program that the copysignl() routine is available.
517 If aintl is also present we can emulate modfl.
520 This variable conditionally defines the CRYPT symbol, which
521 indicates to the C program that the crypt() routine is available
522 to encrypt passwords and the like.
524 d_crypt_r (d_crypt_r.U):
525 This variable conditionally defines the HAS_CRYPT_R symbol,
526 which indicates to the C program that the crypt_r()
527 routine is available.
530 This variable conditionally defines the CSH symbol, which
531 indicates to the C program that the C-shell exists.
533 d_ctermid_r (d_ctermid_r.U):
534 This variable conditionally defines the HAS_CTERMID_R symbol,
535 which indicates to the C program that the ctermid_r()
536 routine is available.
538 d_ctime_r (d_ctime_r.U):
539 This variable conditionally defines the HAS_CTIME_R symbol,
540 which indicates to the C program that the ctime_r()
541 routine is available.
543 d_cuserid (d_cuserid.U):
544 This variable conditionally defines the HAS_CUSERID symbol, which
545 indicates to the C program that the cuserid() routine is available
546 to get character login names.
548 d_dbl_dig (d_dbl_dig.U):
549 This variable conditionally defines d_dbl_dig if this system's
550 header files provide DBL_DIG, which is the number of significant
551 digits in a double precision number.
553 d_dbminitproto (d_dbminitproto.U):
554 This variable conditionally defines the HAS_DBMINIT_PROTO symbol,
555 which indicates to the C program that the system provides
556 a prototype for the dbminit() function. Otherwise, it is
557 up to the program to supply one.
559 d_difftime (d_difftime.U):
560 This variable conditionally defines the HAS_DIFFTIME symbol, which
561 indicates to the C program that the difftime() routine is available.
564 This variable conditionally defines the HAS_DIRFD constant,
565 which indicates to the C program that dirfd() is available
566 to return the file descriptor of a directory stream.
568 d_dirnamlen (i_dirent.U):
569 This variable conditionally defines DIRNAMLEN, which indicates
570 to the C program that the length of directory entry names is
571 provided by a d_namelen field.
573 d_dlerror (d_dlerror.U):
574 This variable conditionally defines the HAS_DLERROR symbol, which
575 indicates to the C program that the dlerror() routine is available.
577 d_dlopen (d_dlopen.U):
578 This variable conditionally defines the HAS_DLOPEN symbol, which
579 indicates to the C program that the dlopen() routine is available.
581 d_dlsymun (d_dlsymun.U):
582 This variable conditionally defines DLSYM_NEEDS_UNDERSCORE, which
583 indicates that we need to prepend an underscore to the symbol
584 name before calling dlsym().
586 d_dosuid (d_dosuid.U):
587 This variable conditionally defines the symbol DOSUID, which
588 tells the C program that it should insert setuid emulation code
589 on hosts which have setuid #! scripts disabled.
591 d_drand48_r (d_drand48_r.U):
592 This variable conditionally defines the HAS_DRAND48_R symbol,
593 which indicates to the C program that the drand48_r()
594 routine is available.
596 d_drand48proto (d_drand48proto.U):
597 This variable conditionally defines the HAS_DRAND48_PROTO symbol,
598 which indicates to the C program that the system provides
599 a prototype for the drand48() function. Otherwise, it is
600 up to the program to supply one.
603 This variable conditionally defines HAS_DUP2 if dup2() is
604 available to duplicate file descriptors.
606 d_eaccess (d_eaccess.U):
607 This variable conditionally defines the HAS_EACCESS symbol, which
608 indicates to the C program that the eaccess() routine is available.
610 d_endgrent (d_endgrent.U):
611 This variable conditionally defines the HAS_ENDGRENT symbol, which
612 indicates to the C program that the endgrent() routine is available
613 for sequential access of the group database.
615 d_endgrent_r (d_endgrent_r.U):
616 This variable conditionally defines the HAS_ENDGRENT_R symbol,
617 which indicates to the C program that the endgrent_r()
618 routine is available.
620 d_endhent (d_endhent.U):
621 This variable conditionally defines HAS_ENDHOSTENT if endhostent() is
622 available to close whatever was being used for host queries.
624 d_endhostent_r (d_endhostent_r.U):
625 This variable conditionally defines the HAS_ENDHOSTENT_R symbol,
626 which indicates to the C program that the endhostent_r()
627 routine is available.
629 d_endnent (d_endnent.U):
630 This variable conditionally defines HAS_ENDNETENT if endnetent() is
631 available to close whatever was being used for network queries.
633 d_endnetent_r (d_endnetent_r.U):
634 This variable conditionally defines the HAS_ENDNETENT_R symbol,
635 which indicates to the C program that the endnetent_r()
636 routine is available.
638 d_endpent (d_endpent.U):
639 This variable conditionally defines HAS_ENDPROTOENT if endprotoent() is
640 available to close whatever was being used for protocol queries.
642 d_endprotoent_r (d_endprotoent_r.U):
643 This variable conditionally defines the HAS_ENDPROTOENT_R symbol,
644 which indicates to the C program that the endprotoent_r()
645 routine is available.
647 d_endpwent (d_endpwent.U):
648 This variable conditionally defines the HAS_ENDPWENT symbol, which
649 indicates to the C program that the endpwent() routine is available
650 for sequential access of the passwd database.
652 d_endpwent_r (d_endpwent_r.U):
653 This variable conditionally defines the HAS_ENDPWENT_R symbol,
654 which indicates to the C program that the endpwent_r()
655 routine is available.
657 d_endsent (d_endsent.U):
658 This variable conditionally defines HAS_ENDSERVENT if endservent() is
659 available to close whatever was being used for service queries.
661 d_endservent_r (d_endservent_r.U):
662 This variable conditionally defines the HAS_ENDSERVENT_R symbol,
663 which indicates to the C program that the endservent_r()
664 routine is available.
666 d_eofnblk (nblock_io.U):
667 This variable conditionally defines EOF_NONBLOCK if EOF can be seen
668 when reading from a non-blocking I/O source.
671 This variable conditionally defines the symbols EUNICE and VAX, which
672 alerts the C program that it must deal with ideosyncracies of VMS.
674 d_faststdio (d_faststdio.U):
675 This variable conditionally defines the HAS_FAST_STDIO symbol,
676 which indicates to the C program that the "fast stdio" is available
677 to manipulate the stdio buffers directly.
679 d_fchdir (d_fchdir.U):
680 This variable conditionally defines the HAS_FCHDIR symbol, which
681 indicates to the C program that the fchdir() routine is available.
683 d_fchmod (d_fchmod.U):
684 This variable conditionally defines the HAS_FCHMOD symbol, which
685 indicates to the C program that the fchmod() routine is available
686 to change mode of opened files.
688 d_fchown (d_fchown.U):
689 This variable conditionally defines the HAS_FCHOWN symbol, which
690 indicates to the C program that the fchown() routine is available
691 to change ownership of opened files.
694 This variable conditionally defines the HAS_FCNTL symbol, and indicates
695 whether the fcntl() function exists
697 d_fcntl_can_lock (d_fcntl_can_lock.U):
698 This variable conditionally defines the FCNTL_CAN_LOCK symbol
699 and indicates whether file locking with fcntl() works.
701 d_fd_macros (d_fd_set.U):
702 This variable contains the eventual value of the HAS_FD_MACROS symbol,
703 which indicates if your C compiler knows about the macros which
704 manipulate an fd_set.
706 d_fd_set (d_fd_set.U):
707 This variable contains the eventual value of the HAS_FD_SET symbol,
708 which indicates if your C compiler knows about the fd_set typedef.
710 d_fds_bits (d_fd_set.U):
711 This variable contains the eventual value of the HAS_FDS_BITS symbol,
712 which indicates if your fd_set typedef contains the fds_bits member.
713 If you have an fd_set typedef, but the dweebs who installed it did
714 a half-fast job and neglected to provide the macros to manipulate
715 an fd_set, HAS_FDS_BITS will let us know how to fix the gaffe.
717 d_fgetpos (d_fgetpos.U):
718 This variable conditionally defines HAS_FGETPOS if fgetpos() is
719 available to get the file position indicator.
721 d_finite (d_finite.U):
722 This variable conditionally defines the HAS_FINITE symbol, which
723 indicates to the C program that the finite() routine is available.
725 d_finitel (d_finitel.U):
726 This variable conditionally defines the HAS_FINITEL symbol, which
727 indicates to the C program that the finitel() routine is available.
729 d_flexfnam (d_flexfnam.U):
730 This variable conditionally defines the FLEXFILENAMES symbol, which
731 indicates that the system supports filenames longer than 14 characters.
734 This variable conditionally defines HAS_FLOCK if flock() is
735 available to do file locking.
737 d_flockproto (d_flockproto.U):
738 This variable conditionally defines the HAS_FLOCK_PROTO symbol,
739 which indicates to the C program that the system provides
740 a prototype for the flock() function. Otherwise, it is
741 up to the program to supply one.
744 This variable conditionally defines the HAS_FORK symbol, which
745 indicates to the C program that the fork() routine is available.
747 d_fp_class (d_fp_class.U):
748 This variable conditionally defines the HAS_FP_CLASS symbol, which
749 indicates to the C program that the fp_class() routine is available.
751 d_fpathconf (d_pathconf.U):
752 This variable conditionally defines the HAS_FPATHCONF symbol, which
753 indicates to the C program that the pathconf() routine is available
754 to determine file-system related limits and options associated
755 with a given open file descriptor.
757 d_fpclass (d_fpclass.U):
758 This variable conditionally defines the HAS_FPCLASS symbol, which
759 indicates to the C program that the fpclass() routine is available.
761 d_fpclassify (d_fpclassify.U):
762 This variable conditionally defines the HAS_FPCLASSIFY symbol, which
763 indicates to the C program that the fpclassify() routine is available.
765 d_fpclassl (d_fpclassl.U):
766 This variable conditionally defines the HAS_FPCLASSL symbol, which
767 indicates to the C program that the fpclassl() routine is available.
769 d_fpos64_t (d_fpos64_t.U):
770 This symbol will be defined if the C compiler supports fpos64_t.
772 d_frexpl (d_frexpl.U):
773 This variable conditionally defines the HAS_FREXPL symbol, which
774 indicates to the C program that the frexpl() routine is available.
776 d_fs_data_s (d_fs_data_s.U):
777 This variable conditionally defines the HAS_STRUCT_FS_DATA symbol,
778 which indicates that the struct fs_data is supported.
780 d_fseeko (d_fseeko.U):
781 This variable conditionally defines the HAS_FSEEKO symbol, which
782 indicates to the C program that the fseeko() routine is available.
784 d_fsetpos (d_fsetpos.U):
785 This variable conditionally defines HAS_FSETPOS if fsetpos() is
786 available to set the file position indicator.
788 d_fstatfs (d_fstatfs.U):
789 This variable conditionally defines the HAS_FSTATFS symbol, which
790 indicates to the C program that the fstatfs() routine is available.
792 d_fstatvfs (d_statvfs.U):
793 This variable conditionally defines the HAS_FSTATVFS symbol, which
794 indicates to the C program that the fstatvfs() routine is available.
797 This variable conditionally defines the HAS_FSYNC symbol, which
798 indicates to the C program that the fsync() routine is available.
800 d_ftello (d_ftello.U):
801 This variable conditionally defines the HAS_FTELLO symbol, which
802 indicates to the C program that the ftello() routine is available.
805 This variable conditionally defines the HAS_FTIME symbol, which indicates
806 that the ftime() routine exists. The ftime() routine is basically
807 a sub-second accuracy clock.
809 d_Gconvert (d_gconvert.U):
810 This variable holds what Gconvert is defined as to convert
811 floating point numbers into strings. By default, Configure
812 sets this macro to use the first of gconvert, gcvt, or sprintf
813 that pass sprintf-%g-like behaviour tests. If perl is using
814 long doubles, the macro uses the first of the following
815 functions that pass Configure's tests: qgcvt, sprintf (if
816 Configure knows how to make sprintf format long doubles--see
817 sPRIgldbl), gconvert, gcvt, and sprintf (casting to double).
818 The gconvert_preference and gconvert_ld_preference variables
819 can be used to alter Configure's preferences, for doubles and
820 long doubles, respectively. If present, they contain a
821 space-separated list of one or more of the above function
822 names in the order they should be tried.
824 d_Gconvert may be set to override Configure with a platform-
825 specific function. If this function expects a double, a
826 different value may need to be set by the uselongdouble.cbu
827 call-back unit so that long doubles can be formatted without
830 d_getcwd (d_getcwd.U):
831 This variable conditionally defines the HAS_GETCWD symbol, which
832 indicates to the C program that the getcwd() routine is available
833 to get the current working directory.
835 d_getespwnam (d_getespwnam.U):
836 This variable conditionally defines HAS_GETESPWNAM if getespwnam() is
837 available to retrieve enchanced (shadow) password entries by name.
839 d_getfsstat (d_getfsstat.U):
840 This variable conditionally defines the HAS_GETFSSTAT symbol, which
841 indicates to the C program that the getfsstat() routine is available.
843 d_getgrent (d_getgrent.U):
844 This variable conditionally defines the HAS_GETGRENT symbol, which
845 indicates to the C program that the getgrent() routine is available
846 for sequential access of the group database.
848 d_getgrent_r (d_getgrent_r.U):
849 This variable conditionally defines the HAS_GETGRENT_R symbol,
850 which indicates to the C program that the getgrent_r()
851 routine is available.
853 d_getgrgid_r (d_getgrgid_r.U):
854 This variable conditionally defines the HAS_GETGRGID_R symbol,
855 which indicates to the C program that the getgrgid_r()
856 routine is available.
858 d_getgrnam_r (d_getgrnam_r.U):
859 This variable conditionally defines the HAS_GETGRNAM_R symbol,
860 which indicates to the C program that the getgrnam_r()
861 routine is available.
863 d_getgrps (d_getgrps.U):
864 This variable conditionally defines the HAS_GETGROUPS symbol, which
865 indicates to the C program that the getgroups() routine is available
866 to get the list of process groups.
868 d_gethbyaddr (d_gethbyad.U):
869 This variable conditionally defines the HAS_GETHOSTBYADDR symbol, which
870 indicates to the C program that the gethostbyaddr() routine is available
871 to look up hosts by their IP addresses.
873 d_gethbyname (d_gethbynm.U):
874 This variable conditionally defines the HAS_GETHOSTBYNAME symbol, which
875 indicates to the C program that the gethostbyname() routine is available
876 to look up host names in some data base or other.
878 d_gethent (d_gethent.U):
879 This variable conditionally defines HAS_GETHOSTENT if gethostent() is
880 available to look up host names in some data base or another.
882 d_gethname (d_gethname.U):
883 This variable conditionally defines the HAS_GETHOSTNAME symbol, which
884 indicates to the C program that the gethostname() routine may be
885 used to derive the host name.
887 d_gethostbyaddr_r (d_gethostbyaddr_r.U):
888 This variable conditionally defines the HAS_GETHOSTBYADDR_R symbol,
889 which indicates to the C program that the gethostbyaddr_r()
890 routine is available.
892 d_gethostbyname_r (d_gethostbyname_r.U):
893 This variable conditionally defines the HAS_GETHOSTBYNAME_R symbol,
894 which indicates to the C program that the gethostbyname_r()
895 routine is available.
897 d_gethostent_r (d_gethostent_r.U):
898 This variable conditionally defines the HAS_GETHOSTENT_R symbol,
899 which indicates to the C program that the gethostent_r()
900 routine is available.
902 d_gethostprotos (d_gethostprotos.U):
903 This variable conditionally defines the HAS_GETHOST_PROTOS symbol,
904 which indicates to the C program that <netdb.h> supplies
905 prototypes for the various gethost*() functions.
906 See also netdbtype.U for probing for various netdb types.
908 d_getitimer (d_getitimer.U):
909 This variable conditionally defines the HAS_GETITIMER symbol, which
910 indicates to the C program that the getitimer() routine is available.
912 d_getlogin (d_getlogin.U):
913 This variable conditionally defines the HAS_GETLOGIN symbol, which
914 indicates to the C program that the getlogin() routine is available
915 to get the login name.
917 d_getlogin_r (d_getlogin_r.U):
918 This variable conditionally defines the HAS_GETLOGIN_R symbol,
919 which indicates to the C program that the getlogin_r()
920 routine is available.
922 d_getmnt (d_getmnt.U):
923 This variable conditionally defines the HAS_GETMNT symbol, which
924 indicates to the C program that the getmnt() routine is available
925 to retrieve one or more mount info blocks by filename.
927 d_getmntent (d_getmntent.U):
928 This variable conditionally defines the HAS_GETMNTENT symbol, which
929 indicates to the C program that the getmntent() routine is available
930 to iterate through mounted files to get their mount info.
932 d_getnbyaddr (d_getnbyad.U):
933 This variable conditionally defines the HAS_GETNETBYADDR symbol, which
934 indicates to the C program that the getnetbyaddr() routine is available
935 to look up networks by their IP addresses.
937 d_getnbyname (d_getnbynm.U):
938 This variable conditionally defines the HAS_GETNETBYNAME symbol, which
939 indicates to the C program that the getnetbyname() routine is available
940 to look up networks by their names.
942 d_getnent (d_getnent.U):
943 This variable conditionally defines HAS_GETNETENT if getnetent() is
944 available to look up network names in some data base or another.
946 d_getnetbyaddr_r (d_getnetbyaddr_r.U):
947 This variable conditionally defines the HAS_GETNETBYADDR_R symbol,
948 which indicates to the C program that the getnetbyaddr_r()
949 routine is available.
951 d_getnetbyname_r (d_getnetbyname_r.U):
952 This variable conditionally defines the HAS_GETNETBYNAME_R symbol,
953 which indicates to the C program that the getnetbyname_r()
954 routine is available.
956 d_getnetent_r (d_getnetent_r.U):
957 This variable conditionally defines the HAS_GETNETENT_R symbol,
958 which indicates to the C program that the getnetent_r()
959 routine is available.
961 d_getnetprotos (d_getnetprotos.U):
962 This variable conditionally defines the HAS_GETNET_PROTOS symbol,
963 which indicates to the C program that <netdb.h> supplies
964 prototypes for the various getnet*() functions.
965 See also netdbtype.U for probing for various netdb types.
967 d_getpagsz (d_getpagsz.U):
968 This variable conditionally defines HAS_GETPAGESIZE if getpagesize()
969 is available to get the system page size.
971 d_getpbyname (d_getprotby.U):
972 This variable conditionally defines the HAS_GETPROTOBYNAME
973 symbol, which indicates to the C program that the
974 getprotobyname() routine is available to look up protocols
977 d_getpbynumber (d_getprotby.U):
978 This variable conditionally defines the HAS_GETPROTOBYNUMBER
979 symbol, which indicates to the C program that the
980 getprotobynumber() routine is available to look up protocols
983 d_getpent (d_getpent.U):
984 This variable conditionally defines HAS_GETPROTOENT if getprotoent() is
985 available to look up protocols in some data base or another.
987 d_getpgid (d_getpgid.U):
988 This variable conditionally defines the HAS_GETPGID symbol, which
989 indicates to the C program that the getpgid(pid) function
990 is available to get the process group id.
992 d_getpgrp2 (d_getpgrp2.U):
993 This variable conditionally defines the HAS_GETPGRP2 symbol, which
994 indicates to the C program that the getpgrp2() (as in DG/UX) routine
995 is available to get the current process group.
997 d_getpgrp (d_getpgrp.U):
998 This variable conditionally defines HAS_GETPGRP if getpgrp() is
999 available to get the current process group.
1001 d_getppid (d_getppid.U):
1002 This variable conditionally defines the HAS_GETPPID symbol, which
1003 indicates to the C program that the getppid() routine is available
1004 to get the parent process ID.
1006 d_getprior (d_getprior.U):
1007 This variable conditionally defines HAS_GETPRIORITY if getpriority()
1008 is available to get a process's priority.
1010 d_getprotobyname_r (d_getprotobyname_r.U):
1011 This variable conditionally defines the HAS_GETPROTOBYNAME_R symbol,
1012 which indicates to the C program that the getprotobyname_r()
1013 routine is available.
1015 d_getprotobynumber_r (d_getprotobynumber_r.U):
1016 This variable conditionally defines the HAS_GETPROTOBYNUMBER_R symbol,
1017 which indicates to the C program that the getprotobynumber_r()
1018 routine is available.
1020 d_getprotoent_r (d_getprotoent_r.U):
1021 This variable conditionally defines the HAS_GETPROTOENT_R symbol,
1022 which indicates to the C program that the getprotoent_r()
1023 routine is available.
1025 d_getprotoprotos (d_getprotoprotos.U):
1026 This variable conditionally defines the HAS_GETPROTO_PROTOS symbol,
1027 which indicates to the C program that <netdb.h> supplies
1028 prototypes for the various getproto*() functions.
1029 See also netdbtype.U for probing for various netdb types.
1031 d_getprpwnam (d_getprpwnam.U):
1032 This variable conditionally defines HAS_GETPRPWNAM if getprpwnam() is
1033 available to retrieve protected (shadow) password entries by name.
1035 d_getpwent (d_getpwent.U):
1036 This variable conditionally defines the HAS_GETPWENT symbol, which
1037 indicates to the C program that the getpwent() routine is available
1038 for sequential access of the passwd database.
1040 d_getpwent_r (d_getpwent_r.U):
1041 This variable conditionally defines the HAS_GETPWENT_R symbol,
1042 which indicates to the C program that the getpwent_r()
1043 routine is available.
1045 d_getpwnam_r (d_getpwnam_r.U):
1046 This variable conditionally defines the HAS_GETPWNAM_R symbol,
1047 which indicates to the C program that the getpwnam_r()
1048 routine is available.
1050 d_getpwuid_r (d_getpwuid_r.U):
1051 This variable conditionally defines the HAS_GETPWUID_R symbol,
1052 which indicates to the C program that the getpwuid_r()
1053 routine is available.
1055 d_getsbyname (d_getsrvby.U):
1056 This variable conditionally defines the HAS_GETSERVBYNAME
1057 symbol, which indicates to the C program that the
1058 getservbyname() routine is available to look up services
1061 d_getsbyport (d_getsrvby.U):
1062 This variable conditionally defines the HAS_GETSERVBYPORT
1063 symbol, which indicates to the C program that the
1064 getservbyport() routine is available to look up services
1067 d_getsent (d_getsent.U):
1068 This variable conditionally defines HAS_GETSERVENT if getservent() is
1069 available to look up network services in some data base or another.
1071 d_getservbyname_r (d_getservbyname_r.U):
1072 This variable conditionally defines the HAS_GETSERVBYNAME_R symbol,
1073 which indicates to the C program that the getservbyname_r()
1074 routine is available.
1076 d_getservbyport_r (d_getservbyport_r.U):
1077 This variable conditionally defines the HAS_GETSERVBYPORT_R symbol,
1078 which indicates to the C program that the getservbyport_r()
1079 routine is available.
1081 d_getservent_r (d_getservent_r.U):
1082 This variable conditionally defines the HAS_GETSERVENT_R symbol,
1083 which indicates to the C program that the getservent_r()
1084 routine is available.
1086 d_getservprotos (d_getservprotos.U):
1087 This variable conditionally defines the HAS_GETSERV_PROTOS symbol,
1088 which indicates to the C program that <netdb.h> supplies
1089 prototypes for the various getserv*() functions.
1090 See also netdbtype.U for probing for various netdb types.
1092 d_getspnam (d_getspnam.U):
1093 This variable conditionally defines HAS_GETSPNAM if getspnam() is
1094 available to retrieve SysV shadow password entries by name.
1096 d_getspnam_r (d_getspnam_r.U):
1097 This variable conditionally defines the HAS_GETSPNAM_R symbol,
1098 which indicates to the C program that the getspnam_r()
1099 routine is available.
1101 d_gettimeod (d_ftime.U):
1102 This variable conditionally defines the HAS_GETTIMEOFDAY symbol, which
1103 indicates that the gettimeofday() system call exists (to obtain a
1104 sub-second accuracy clock). You should probably include <sys/resource.h>.
1106 d_gmtime_r (d_gmtime_r.U):
1107 This variable conditionally defines the HAS_GMTIME_R symbol,
1108 which indicates to the C program that the gmtime_r()
1109 routine is available.
1111 d_gnulibc (d_gnulibc.U):
1112 Defined if we're dealing with the GNU C Library.
1114 d_grpasswd (i_grp.U):
1115 This variable conditionally defines GRPASSWD, which indicates
1116 that struct group in <grp.h> contains gr_passwd.
1118 d_hasmntopt (d_hasmntopt.U):
1119 This variable conditionally defines the HAS_HASMNTOPT symbol, which
1120 indicates to the C program that the hasmntopt() routine is available
1121 to query the mount options of file systems.
1123 d_htonl (d_htonl.U):
1124 This variable conditionally defines HAS_HTONL if htonl() and its
1125 friends are available to do network order byte swapping.
1127 d_ilogbl (d_ilogbl.U):
1128 This variable conditionally defines the HAS_ILOGBL symbol, which
1129 indicates to the C program that the ilogbl() routine is available.
1130 If scalbnl is also present we can emulate frexpl.
1132 d_index (d_strchr.U):
1133 This variable conditionally defines HAS_INDEX if index() and
1134 rindex() are available for string searching.
1136 d_inetaton (d_inetaton.U):
1137 This variable conditionally defines the HAS_INET_ATON symbol, which
1138 indicates to the C program that the inet_aton() function is available
1139 to parse IP address "dotted-quad" strings.
1141 d_int64_t (d_int64_t.U):
1142 This symbol will be defined if the C compiler supports int64_t.
1144 d_isascii (d_isascii.U):
1145 This variable conditionally defines the HAS_ISASCII constant,
1146 which indicates to the C program that isascii() is available.
1148 d_isfinite (d_isfinite.U):
1149 This variable conditionally defines the HAS_ISFINITE symbol, which
1150 indicates to the C program that the isfinite() routine is available.
1152 d_isinf (d_isinf.U):
1153 This variable conditionally defines the HAS_ISINF symbol, which
1154 indicates to the C program that the isinf() routine is available.
1156 d_isnan (d_isnan.U):
1157 This variable conditionally defines the HAS_ISNAN symbol, which
1158 indicates to the C program that the isnan() routine is available.
1160 d_isnanl (d_isnanl.U):
1161 This variable conditionally defines the HAS_ISNANL symbol, which
1162 indicates to the C program that the isnanl() routine is available.
1164 d_killpg (d_killpg.U):
1165 This variable conditionally defines the HAS_KILLPG symbol, which
1166 indicates to the C program that the killpg() routine is available
1167 to kill process groups.
1169 d_lchown (d_lchown.U):
1170 This variable conditionally defines the HAS_LCHOWN symbol, which
1171 indicates to the C program that the lchown() routine is available
1172 to operate on a symbolic link (instead of following the link).
1174 d_ldbl_dig (d_ldbl_dig.U):
1175 This variable conditionally defines d_ldbl_dig if this system's
1176 header files provide LDBL_DIG, which is the number of significant
1177 digits in a long double precision number.
1180 This variable conditionally defines HAS_LINK if link() is
1181 available to create hard links.
1183 d_localtime_r (d_localtime_r.U):
1184 This variable conditionally defines the HAS_LOCALTIME_R symbol,
1185 which indicates to the C program that the localtime_r()
1186 routine is available.
1188 d_locconv (d_locconv.U):
1189 This variable conditionally defines HAS_LOCALECONV if localeconv() is
1190 available for numeric and monetary formatting conventions.
1192 d_lockf (d_lockf.U):
1193 This variable conditionally defines HAS_LOCKF if lockf() is
1194 available to do file locking.
1196 d_longdbl (d_longdbl.U):
1197 This variable conditionally defines HAS_LONG_DOUBLE if
1198 the long double type is supported.
1200 d_longlong (d_longlong.U):
1201 This variable conditionally defines HAS_LONG_LONG if
1202 the long long type is supported.
1204 d_lseekproto (d_lseekproto.U):
1205 This variable conditionally defines the HAS_LSEEK_PROTO symbol,
1206 which indicates to the C program that the system provides
1207 a prototype for the lseek() function. Otherwise, it is
1208 up to the program to supply one.
1210 d_lstat (d_lstat.U):
1211 This variable conditionally defines HAS_LSTAT if lstat() is
1212 available to do file stats on symbolic links.
1214 d_madvise (d_madvise.U):
1215 This variable conditionally defines HAS_MADVISE if madvise() is
1216 available to map a file into memory.
1218 d_malloc_size (d_malloc_size.U):
1219 This symbol, if defined, indicates that the malloc_size
1220 routine is available for use.
1222 d_malloc_good_size (d_malloc_good_size.U):
1223 This symbol, if defined, indicates that the malloc_good_size
1224 routine is available for use.
1226 d_mblen (d_mblen.U):
1227 This variable conditionally defines the HAS_MBLEN symbol, which
1228 indicates to the C program that the mblen() routine is available
1229 to find the number of bytes in a multibye character.
1231 d_mbstowcs (d_mbstowcs.U):
1232 This variable conditionally defines the HAS_MBSTOWCS symbol, which
1233 indicates to the C program that the mbstowcs() routine is available
1234 to convert a multibyte string into a wide character string.
1236 d_mbtowc (d_mbtowc.U):
1237 This variable conditionally defines the HAS_MBTOWC symbol, which
1238 indicates to the C program that the mbtowc() routine is available
1239 to convert multibyte to a wide character.
1241 d_memchr (d_memchr.U):
1242 This variable conditionally defines the HAS_MEMCHR symbol, which
1243 indicates to the C program that the memchr() routine is available
1244 to locate characters within a C string.
1246 d_memcmp (d_memcmp.U):
1247 This variable conditionally defines the HAS_MEMCMP symbol, which
1248 indicates to the C program that the memcmp() routine is available
1249 to compare blocks of memory.
1251 d_memcpy (d_memcpy.U):
1252 This variable conditionally defines the HAS_MEMCPY symbol, which
1253 indicates to the C program that the memcpy() routine is available
1254 to copy blocks of memory.
1256 d_memmove (d_memmove.U):
1257 This variable conditionally defines the HAS_MEMMOVE symbol, which
1258 indicates to the C program that the memmove() routine is available
1259 to copy potentatially overlapping blocks of memory.
1261 d_memset (d_memset.U):
1262 This variable conditionally defines the HAS_MEMSET symbol, which
1263 indicates to the C program that the memset() routine is available
1264 to set blocks of memory.
1266 d_mkdir (d_mkdir.U):
1267 This variable conditionally defines the HAS_MKDIR symbol, which
1268 indicates to the C program that the mkdir() routine is available
1269 to create directories..
1271 d_mkdtemp (d_mkdtemp.U):
1272 This variable conditionally defines the HAS_MKDTEMP symbol, which
1273 indicates to the C program that the mkdtemp() routine is available
1274 to exclusively create a uniquely named temporary directory.
1276 d_mkfifo (d_mkfifo.U):
1277 This variable conditionally defines the HAS_MKFIFO symbol, which
1278 indicates to the C program that the mkfifo() routine is available.
1280 d_mkstemp (d_mkstemp.U):
1281 This variable conditionally defines the HAS_MKSTEMP symbol, which
1282 indicates to the C program that the mkstemp() routine is available
1283 to exclusively create and open a uniquely named temporary file.
1285 d_mkstemps (d_mkstemps.U):
1286 This variable conditionally defines the HAS_MKSTEMPS symbol, which
1287 indicates to the C program that the mkstemps() routine is available
1288 to exclusively create and open a uniquely named (with a suffix)
1291 d_mktime (d_mktime.U):
1292 This variable conditionally defines the HAS_MKTIME symbol, which
1293 indicates to the C program that the mktime() routine is available.
1296 This variable conditionally defines HAS_MMAP if mmap() is
1297 available to map a file into memory.
1299 d_modfl (d_modfl.U):
1300 This variable conditionally defines the HAS_MODFL symbol, which
1301 indicates to the C program that the modfl() routine is available.
1303 d_modfl_pow32_bug (d_modfl.U):
1304 This variable conditionally defines the HAS_MODFL_POW32_BUG symbol,
1305 which indicates that modfl() is broken for long doubles >= pow(2, 32).
1306 For example from 4294967303.150000 one would get 4294967302.000000
1307 and 1.150000. The bug has been seen in certain versions of glibc,
1308 release 2.2.2 is known to be okay.
1310 d_modflproto (d_modfl.U):
1311 This symbol, if defined, indicates that the system provides
1312 a prototype for the modfl() function. Otherwise, it is up
1313 to the program to supply one. C99 says it should be
1314 long double modfl(long double, long double *);
1316 d_mprotect (d_mprotect.U):
1317 This variable conditionally defines HAS_MPROTECT if mprotect() is
1318 available to modify the access protection of a memory mapped file.
1321 This variable conditionally defines the HAS_MSG symbol, which
1322 indicates that the entire msg*(2) library is present.
1324 d_msg_ctrunc (d_socket.U):
1325 This variable conditionally defines the HAS_MSG_CTRUNC symbol,
1326 which indicates that the MSG_CTRUNC is available. #ifdef is
1327 not enough because it may be an enum, glibc has been known to do this.
1329 d_msg_dontroute (d_socket.U):
1330 This variable conditionally defines the HAS_MSG_DONTROUTE symbol,
1331 which indicates that the MSG_DONTROUTE is available. #ifdef is
1332 not enough because it may be an enum, glibc has been known to do this.
1334 d_msg_oob (d_socket.U):
1335 This variable conditionally defines the HAS_MSG_OOB symbol,
1336 which indicates that the MSG_OOB is available. #ifdef is
1337 not enough because it may be an enum, glibc has been known to do this.
1339 d_msg_peek (d_socket.U):
1340 This variable conditionally defines the HAS_MSG_PEEK symbol,
1341 which indicates that the MSG_PEEK is available. #ifdef is
1342 not enough because it may be an enum, glibc has been known to do this.
1344 d_msg_proxy (d_socket.U):
1345 This variable conditionally defines the HAS_MSG_PROXY symbol,
1346 which indicates that the MSG_PROXY is available. #ifdef is
1347 not enough because it may be an enum, glibc has been known to do this.
1349 d_msgctl (d_msgctl.U):
1350 This variable conditionally defines the HAS_MSGCTL symbol, which
1351 indicates to the C program that the msgctl() routine is available.
1353 d_msgget (d_msgget.U):
1354 This variable conditionally defines the HAS_MSGGET symbol, which
1355 indicates to the C program that the msgget() routine is available.
1357 d_msghdr_s (d_msghdr_s.U):
1358 This variable conditionally defines the HAS_STRUCT_MSGHDR symbol,
1359 which indicates that the struct msghdr is supported.
1361 d_msgrcv (d_msgrcv.U):
1362 This variable conditionally defines the HAS_MSGRCV symbol, which
1363 indicates to the C program that the msgrcv() routine is available.
1365 d_msgsnd (d_msgsnd.U):
1366 This variable conditionally defines the HAS_MSGSND symbol, which
1367 indicates to the C program that the msgsnd() routine is available.
1369 d_msync (d_msync.U):
1370 This variable conditionally defines HAS_MSYNC if msync() is
1371 available to synchronize a mapped file.
1373 d_munmap (d_munmap.U):
1374 This variable conditionally defines HAS_MUNMAP if munmap() is
1375 available to unmap a region mapped by mmap().
1377 d_mymalloc (mallocsrc.U):
1378 This variable conditionally defines MYMALLOC in case other parts
1379 of the source want to take special action if MYMALLOC is used.
1380 This may include different sorts of profiling or error detection.
1383 This variable conditionally defines the HAS_NICE symbol, which
1384 indicates to the C program that the nice() routine is available.
1386 d_nl_langinfo (d_nl_langinfo.U):
1387 This variable conditionally defines the HAS_NL_LANGINFO symbol, which
1388 indicates to the C program that the nl_langinfo() routine is available.
1390 d_nv_preserves_uv (perlxv.U):
1391 This variable indicates whether a variable of type nvtype
1392 can preserve all the bits a variable of type uvtype.
1394 d_nv_zero_is_allbits_zero (perlxv.U):
1395 This variable indicates whether a variable of type nvtype
1396 stores 0.0 in memory as all bits zero.
1398 d_off64_t (d_off64_t.U):
1399 This symbol will be defined if the C compiler supports off64_t.
1401 d_old_pthread_create_joinable (d_pthrattrj.U):
1402 This variable conditionally defines pthread_create_joinable.
1403 undef if pthread.h defines PTHREAD_CREATE_JOINABLE.
1405 d_oldpthreads (usethreads.U):
1406 This variable conditionally defines the OLD_PTHREADS_API symbol,
1407 and indicates that Perl should be built to use the old
1408 draft POSIX threads API. This is only potentially meaningful if
1411 d_oldsock (d_socket.U):
1412 This variable conditionally defines the OLDSOCKET symbol, which
1413 indicates that the BSD socket interface is based on 4.1c and not 4.2.
1415 d_open3 (d_open3.U):
1416 This variable conditionally defines the HAS_OPEN3 manifest constant,
1417 which indicates to the C program that the 3 argument version of
1418 the open(2) function is available.
1420 d_pathconf (d_pathconf.U):
1421 This variable conditionally defines the HAS_PATHCONF symbol, which
1422 indicates to the C program that the pathconf() routine is available
1423 to determine file-system related limits and options associated
1424 with a given filename.
1426 d_pause (d_pause.U):
1427 This variable conditionally defines the HAS_PAUSE symbol, which
1428 indicates to the C program that the pause() routine is available
1429 to suspend a process until a signal is received.
1431 d_perl_otherlibdirs (otherlibdirs.U):
1432 This variable conditionally defines PERL_OTHERLIBDIRS, which
1433 contains a colon-separated set of paths for the perl binary to
1434 include in @INC. See also otherlibdirs.
1436 d_phostname (d_gethname.U):
1437 This variable conditionally defines the HAS_PHOSTNAME symbol, which
1438 contains the shell command which, when fed to popen(), may be
1439 used to derive the host name.
1442 This variable conditionally defines the HAS_PIPE symbol, which
1443 indicates to the C program that the pipe() routine is available
1444 to create an inter-process channel.
1447 This variable conditionally defines the HAS_POLL symbol, which
1448 indicates to the C program that the poll() routine is available
1449 to poll active file descriptors.
1451 d_portable (d_portable.U):
1452 This variable conditionally defines the PORTABLE symbol, which
1453 indicates to the C program that it should not assume that it is
1454 running on the machine it was compiled on.
1456 d_PRId64 (quadfio.U):
1457 This variable conditionally defines the PERL_PRId64 symbol, which
1458 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1460 d_PRIeldbl (longdblfio.U):
1461 This variable conditionally defines the PERL_PRIfldbl symbol, which
1462 indiciates that stdio has a symbol to print long doubles.
1464 d_PRIEUldbl (longdblfio.U):
1465 This variable conditionally defines the PERL_PRIfldbl symbol, which
1466 indiciates that stdio has a symbol to print long doubles.
1467 The 'U' in the name is to separate this from d_PRIeldbl so that even
1468 case-blind systems can see the difference.
1470 d_PRIfldbl (longdblfio.U):
1471 This variable conditionally defines the PERL_PRIfldbl symbol, which
1472 indiciates that stdio has a symbol to print long doubles.
1474 d_PRIFUldbl (longdblfio.U):
1475 This variable conditionally defines the PERL_PRIfldbl symbol, which
1476 indiciates that stdio has a symbol to print long doubles.
1477 The 'U' in the name is to separate this from d_PRIfldbl so that even
1478 case-blind systems can see the difference.
1480 d_PRIgldbl (longdblfio.U):
1481 This variable conditionally defines the PERL_PRIfldbl symbol, which
1482 indiciates that stdio has a symbol to print long doubles.
1484 d_PRIGUldbl (longdblfio.U):
1485 This variable conditionally defines the PERL_PRIfldbl symbol, which
1486 indiciates that stdio has a symbol to print long doubles.
1487 The 'U' in the name is to separate this from d_PRIgldbl so that even
1488 case-blind systems can see the difference.
1490 d_PRIi64 (quadfio.U):
1491 This variable conditionally defines the PERL_PRIi64 symbol, which
1492 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1494 d_PRIo64 (quadfio.U):
1495 This variable conditionally defines the PERL_PRIo64 symbol, which
1496 indiciates that stdio has a symbol to print 64-bit octal numbers.
1498 d_PRIu64 (quadfio.U):
1499 This variable conditionally defines the PERL_PRIu64 symbol, which
1500 indiciates that stdio has a symbol to print 64-bit unsigned decimal
1503 d_PRIx64 (quadfio.U):
1504 This variable conditionally defines the PERL_PRIx64 symbol, which
1505 indiciates that stdio has a symbol to print 64-bit hexadecimal numbers.
1507 d_PRIXU64 (quadfio.U):
1508 This variable conditionally defines the PERL_PRIXU64 symbol, which
1509 indiciates that stdio has a symbol to print 64-bit hExADECimAl numbers.
1510 The 'U' in the name is to separate this from d_PRIx64 so that even
1511 case-blind systems can see the difference.
1513 d_procselfexe (d_procselfexe.U):
1514 Defined if $procselfexe is symlink to the absolute
1515 pathname of the executing program.
1517 d_pthread_atfork (d_pthread_atfork.U):
1518 This variable conditionally defines the HAS_PTHREAD_ATFORK symbol,
1519 which indicates to the C program that the pthread_atfork()
1520 routine is available.
1522 d_pthread_attr_setscope (d_pthread_attr_ss.U):
1523 This variable conditionally defines HAS_PTHREAD_ATTR_SETSCOPE if
1524 pthread_attr_setscope() is available to set the contention scope
1525 attribute of a thread attribute object.
1527 d_pthread_yield (d_pthread_y.U):
1528 This variable conditionally defines the HAS_PTHREAD_YIELD
1529 symbol if the pthread_yield routine is available to yield
1530 the execution of the current thread.
1533 This variable conditionally defines PWAGE, which indicates
1534 that struct passwd contains pw_age.
1536 d_pwchange (i_pwd.U):
1537 This variable conditionally defines PWCHANGE, which indicates
1538 that struct passwd contains pw_change.
1540 d_pwclass (i_pwd.U):
1541 This variable conditionally defines PWCLASS, which indicates
1542 that struct passwd contains pw_class.
1544 d_pwcomment (i_pwd.U):
1545 This variable conditionally defines PWCOMMENT, which indicates
1546 that struct passwd contains pw_comment.
1548 d_pwexpire (i_pwd.U):
1549 This variable conditionally defines PWEXPIRE, which indicates
1550 that struct passwd contains pw_expire.
1552 d_pwgecos (i_pwd.U):
1553 This variable conditionally defines PWGECOS, which indicates
1554 that struct passwd contains pw_gecos.
1556 d_pwpasswd (i_pwd.U):
1557 This variable conditionally defines PWPASSWD, which indicates
1558 that struct passwd contains pw_passwd.
1560 d_pwquota (i_pwd.U):
1561 This variable conditionally defines PWQUOTA, which indicates
1562 that struct passwd contains pw_quota.
1564 d_qgcvt (d_qgcvt.U):
1565 This variable conditionally defines the HAS_QGCVT symbol, which
1566 indicates to the C program that the qgcvt() routine is available.
1568 d_quad (quadtype.U):
1569 This variable, if defined, tells that there's a 64-bit integer type,
1572 d_random_r (d_random_r.U):
1573 This variable conditionally defines the HAS_RANDOM_R symbol,
1574 which indicates to the C program that the random_r()
1575 routine is available.
1577 d_readdir64_r (d_readdir64_r.U):
1578 This variable conditionally defines the HAS_READDIR64_R symbol,
1579 which indicates to the C program that the readdir64_r()
1580 routine is available.
1582 d_readdir (d_readdir.U):
1583 This variable conditionally defines HAS_READDIR if readdir() is
1584 available to read directory entries.
1586 d_readdir_r (d_readdir_r.U):
1587 This variable conditionally defines the HAS_READDIR_R symbol,
1588 which indicates to the C program that the readdir_r()
1589 routine is available.
1591 d_readlink (d_readlink.U):
1592 This variable conditionally defines the HAS_READLINK symbol, which
1593 indicates to the C program that the readlink() routine is available
1594 to read the value of a symbolic link.
1596 d_readv (d_readv.U):
1597 This variable conditionally defines the HAS_READV symbol, which
1598 indicates to the C program that the readv() routine is available.
1600 d_recvmsg (d_recvmsg.U):
1601 This variable conditionally defines the HAS_RECVMSG symbol, which
1602 indicates to the C program that the recvmsg() routine is available.
1604 d_rename (d_rename.U):
1605 This variable conditionally defines the HAS_RENAME symbol, which
1606 indicates to the C program that the rename() routine is available
1609 d_rewinddir (d_readdir.U):
1610 This variable conditionally defines HAS_REWINDDIR if rewinddir() is
1613 d_rmdir (d_rmdir.U):
1614 This variable conditionally defines HAS_RMDIR if rmdir() is
1615 available to remove directories.
1617 d_safebcpy (d_safebcpy.U):
1618 This variable conditionally defines the HAS_SAFE_BCOPY symbol if
1619 the bcopy() routine can do overlapping copies. Normally, you
1620 should probably use memmove().
1622 d_safemcpy (d_safemcpy.U):
1623 This variable conditionally defines the HAS_SAFE_MEMCPY symbol if
1624 the memcpy() routine can do overlapping copies.
1625 For overlapping copies, memmove() should be used, if available.
1627 d_sanemcmp (d_sanemcmp.U):
1628 This variable conditionally defines the HAS_SANE_MEMCMP symbol if
1629 the memcpy() routine is available and can be used to compare relative
1630 magnitudes of chars with their high bits set.
1632 d_sbrkproto (d_sbrkproto.U):
1633 This variable conditionally defines the HAS_SBRK_PROTO symbol,
1634 which indicates to the C program that the system provides
1635 a prototype for the sbrk() function. Otherwise, it is
1636 up to the program to supply one.
1638 d_scalbnl (d_scalbnl.U):
1639 This variable conditionally defines the HAS_SCALBNL symbol, which
1640 indicates to the C program that the scalbnl() routine is available.
1641 If ilogbl is also present we can emulate frexpl.
1643 d_sched_yield (d_pthread_y.U):
1644 This variable conditionally defines the HAS_SCHED_YIELD
1645 symbol if the sched_yield routine is available to yield
1646 the execution of the current thread.
1648 d_scm_rights (d_socket.U):
1649 This variable conditionally defines the HAS_SCM_RIGHTS symbol,
1650 which indicates that the SCM_RIGHTS is available. #ifdef is
1651 not enough because it may be an enum, glibc has been known to do this.
1653 d_SCNfldbl (longdblfio.U):
1654 This variable conditionally defines the PERL_PRIfldbl symbol, which
1655 indiciates that stdio has a symbol to scan long doubles.
1657 d_seekdir (d_readdir.U):
1658 This variable conditionally defines HAS_SEEKDIR if seekdir() is
1661 d_select (d_select.U):
1662 This variable conditionally defines HAS_SELECT if select() is
1663 available to select active file descriptors. A <sys/time.h>
1664 inclusion may be necessary for the timeout field.
1667 This variable conditionally defines the HAS_SEM symbol, which
1668 indicates that the entire sem*(2) library is present.
1670 d_semctl (d_semctl.U):
1671 This variable conditionally defines the HAS_SEMCTL symbol, which
1672 indicates to the C program that the semctl() routine is available.
1674 d_semctl_semid_ds (d_union_semun.U):
1675 This variable conditionally defines USE_SEMCTL_SEMID_DS, which
1676 indicates that struct semid_ds * is to be used for semctl IPC_STAT.
1678 d_semctl_semun (d_union_semun.U):
1679 This variable conditionally defines USE_SEMCTL_SEMUN, which
1680 indicates that union semun is to be used for semctl IPC_STAT.
1682 d_semget (d_semget.U):
1683 This variable conditionally defines the HAS_SEMGET symbol, which
1684 indicates to the C program that the semget() routine is available.
1686 d_semop (d_semop.U):
1687 This variable conditionally defines the HAS_SEMOP symbol, which
1688 indicates to the C program that the semop() routine is available.
1690 d_sendmsg (d_sendmsg.U):
1691 This variable conditionally defines the HAS_SENDMSG symbol, which
1692 indicates to the C program that the sendmsg() routine is available.
1694 d_setegid (d_setegid.U):
1695 This variable conditionally defines the HAS_SETEGID symbol, which
1696 indicates to the C program that the setegid() routine is available
1697 to change the effective gid of the current program.
1699 d_seteuid (d_seteuid.U):
1700 This variable conditionally defines the HAS_SETEUID symbol, which
1701 indicates to the C program that the seteuid() routine is available
1702 to change the effective uid of the current program.
1704 d_setgrent (d_setgrent.U):
1705 This variable conditionally defines the HAS_SETGRENT symbol, which
1706 indicates to the C program that the setgrent() routine is available
1707 for initializing sequential access to the group database.
1709 d_setgrent_r (d_setgrent_r.U):
1710 This variable conditionally defines the HAS_SETGRENT_R symbol,
1711 which indicates to the C program that the setgrent_r()
1712 routine is available.
1714 d_setgrps (d_setgrps.U):
1715 This variable conditionally defines the HAS_SETGROUPS symbol, which
1716 indicates to the C program that the setgroups() routine is available
1717 to set the list of process groups.
1719 d_sethent (d_sethent.U):
1720 This variable conditionally defines HAS_SETHOSTENT if sethostent() is
1723 d_sethostent_r (d_sethostent_r.U):
1724 This variable conditionally defines the HAS_SETHOSTENT_R symbol,
1725 which indicates to the C program that the sethostent_r()
1726 routine is available.
1728 d_setitimer (d_setitimer.U):
1729 This variable conditionally defines the HAS_SETITIMER symbol, which
1730 indicates to the C program that the setitimer() routine is available.
1732 d_setlinebuf (d_setlnbuf.U):
1733 This variable conditionally defines the HAS_SETLINEBUF symbol, which
1734 indicates to the C program that the setlinebuf() routine is available
1735 to change stderr or stdout from block-buffered or unbuffered to a
1738 d_setlocale (d_setlocale.U):
1739 This variable conditionally defines HAS_SETLOCALE if setlocale() is
1740 available to handle locale-specific ctype implementations.
1742 d_setlocale_r (d_setlocale_r.U):
1743 This variable conditionally defines the HAS_SETLOCALE_R symbol,
1744 which indicates to the C program that the setlocale_r()
1745 routine is available.
1747 d_setnent (d_setnent.U):
1748 This variable conditionally defines HAS_SETNETENT if setnetent() is
1751 d_setnetent_r (d_setnetent_r.U):
1752 This variable conditionally defines the HAS_SETNETENT_R symbol,
1753 which indicates to the C program that the setnetent_r()
1754 routine is available.
1756 d_setpent (d_setpent.U):
1757 This variable conditionally defines HAS_SETPROTOENT if setprotoent() is
1760 d_setpgid (d_setpgid.U):
1761 This variable conditionally defines the HAS_SETPGID symbol if the
1762 setpgid(pid, gpid) function is available to set process group ID.
1764 d_setpgrp2 (d_setpgrp2.U):
1765 This variable conditionally defines the HAS_SETPGRP2 symbol, which
1766 indicates to the C program that the setpgrp2() (as in DG/UX) routine
1767 is available to set the current process group.
1769 d_setpgrp (d_setpgrp.U):
1770 This variable conditionally defines HAS_SETPGRP if setpgrp() is
1771 available to set the current process group.
1773 d_setprior (d_setprior.U):
1774 This variable conditionally defines HAS_SETPRIORITY if setpriority()
1775 is available to set a process's priority.
1777 d_setproctitle (d_setproctitle.U):
1778 This variable conditionally defines the HAS_SETPROCTITLE symbol,
1779 which indicates to the C program that the setproctitle() routine
1782 d_setprotoent_r (d_setprotoent_r.U):
1783 This variable conditionally defines the HAS_SETPROTOENT_R symbol,
1784 which indicates to the C program that the setprotoent_r()
1785 routine is available.
1787 d_setpwent (d_setpwent.U):
1788 This variable conditionally defines the HAS_SETPWENT symbol, which
1789 indicates to the C program that the setpwent() routine is available
1790 for initializing sequential access to the passwd database.
1792 d_setpwent_r (d_setpwent_r.U):
1793 This variable conditionally defines the HAS_SETPWENT_R symbol,
1794 which indicates to the C program that the setpwent_r()
1795 routine is available.
1797 d_setregid (d_setregid.U):
1798 This variable conditionally defines HAS_SETREGID if setregid() is
1799 available to change the real and effective gid of the current
1802 d_setresgid (d_setregid.U):
1803 This variable conditionally defines HAS_SETRESGID if setresgid() is
1804 available to change the real, effective and saved gid of the current
1807 d_setresuid (d_setreuid.U):
1808 This variable conditionally defines HAS_SETREUID if setresuid() is
1809 available to change the real, effective and saved uid of the current
1812 d_setreuid (d_setreuid.U):
1813 This variable conditionally defines HAS_SETREUID if setreuid() is
1814 available to change the real and effective uid of the current
1817 d_setrgid (d_setrgid.U):
1818 This variable conditionally defines the HAS_SETRGID symbol, which
1819 indicates to the C program that the setrgid() routine is available
1820 to change the real gid of the current program.
1822 d_setruid (d_setruid.U):
1823 This variable conditionally defines the HAS_SETRUID symbol, which
1824 indicates to the C program that the setruid() routine is available
1825 to change the real uid of the current program.
1827 d_setsent (d_setsent.U):
1828 This variable conditionally defines HAS_SETSERVENT if setservent() is
1831 d_setservent_r (d_setservent_r.U):
1832 This variable conditionally defines the HAS_SETSERVENT_R symbol,
1833 which indicates to the C program that the setservent_r()
1834 routine is available.
1836 d_setsid (d_setsid.U):
1837 This variable conditionally defines HAS_SETSID if setsid() is
1838 available to set the process group ID.
1840 d_setvbuf (d_setvbuf.U):
1841 This variable conditionally defines the HAS_SETVBUF symbol, which
1842 indicates to the C program that the setvbuf() routine is available
1843 to change buffering on an open stdio stream.
1846 This variable conditionally defines the USE_SFIO symbol,
1847 and indicates whether sfio is available (and should be used).
1850 This variable conditionally defines the HAS_SHM symbol, which
1851 indicates that the entire shm*(2) library is present.
1853 d_shmat (d_shmat.U):
1854 This variable conditionally defines the HAS_SHMAT symbol, which
1855 indicates to the C program that the shmat() routine is available.
1857 d_shmatprototype (d_shmat.U):
1858 This variable conditionally defines the HAS_SHMAT_PROTOTYPE
1859 symbol, which indicates that sys/shm.h has a prototype for
1862 d_shmctl (d_shmctl.U):
1863 This variable conditionally defines the HAS_SHMCTL symbol, which
1864 indicates to the C program that the shmctl() routine is available.
1866 d_shmdt (d_shmdt.U):
1867 This variable conditionally defines the HAS_SHMDT symbol, which
1868 indicates to the C program that the shmdt() routine is available.
1870 d_shmget (d_shmget.U):
1871 This variable conditionally defines the HAS_SHMGET symbol, which
1872 indicates to the C program that the shmget() routine is available.
1874 d_sigaction (d_sigaction.U):
1875 This variable conditionally defines the HAS_SIGACTION symbol, which
1876 indicates that the Vr4 sigaction() routine is available.
1878 d_sigprocmask (d_sigprocmask.U):
1879 This variable conditionally defines HAS_SIGPROCMASK
1880 if sigprocmask() is available to examine or change the signal mask
1881 of the calling process.
1883 d_sigsetjmp (d_sigsetjmp.U):
1884 This variable conditionally defines the HAS_SIGSETJMP symbol,
1885 which indicates that the sigsetjmp() routine is available to
1886 call setjmp() and optionally save the process's signal mask.
1888 d_sockatmark (d_sockatmark.U):
1889 This variable conditionally defines the HAS_SOCKATMARK symbol, which
1890 indicates to the C program that the sockatmark() routine is available.
1892 d_sockatmarkproto (d_sockatmarkproto.U):
1893 This variable conditionally defines the HAS_SOCKATMARK_PROTO symbol,
1894 which indicates to the C program that the system provides
1895 a prototype for the sockatmark() function. Otherwise, it is
1896 up to the program to supply one.
1898 d_socket (d_socket.U):
1899 This variable conditionally defines HAS_SOCKET, which indicates
1900 that the BSD socket interface is supported.
1902 d_socklen_t (d_socklen_t.U):
1903 This symbol will be defined if the C compiler supports socklen_t.
1905 d_sockpair (d_socket.U):
1906 This variable conditionally defines the HAS_SOCKETPAIR symbol, which
1907 indicates that the BSD socketpair() is supported.
1909 d_socks5_init (d_socks5_init.U):
1910 This variable conditionally defines the HAS_SOCKS5_INIT symbol, which
1911 indicates to the C program that the socks5_init() routine is available.
1913 d_sqrtl (d_sqrtl.U):
1914 This variable conditionally defines the HAS_SQRTL symbol, which
1915 indicates to the C program that the sqrtl() routine is available.
1917 d_srand48_r (d_srand48_r.U):
1918 This variable conditionally defines the HAS_SRAND48_R symbol,
1919 which indicates to the C program that the srand48_r()
1920 routine is available.
1922 d_srandom_r (d_srandom_r.U):
1923 This variable conditionally defines the HAS_SRANDOM_R symbol,
1924 which indicates to the C program that the srandom_r()
1925 routine is available.
1927 d_sresgproto (d_sresgproto.U):
1928 This variable conditionally defines the HAS_SETRESGID_PROTO symbol,
1929 which indicates to the C program that the system provides
1930 a prototype for the setresgid() function. Otherwise, it is
1931 up to the program to supply one.
1933 d_sresuproto (d_sresuproto.U):
1934 This variable conditionally defines the HAS_SETRESUID_PROTO symbol,
1935 which indicates to the C program that the system provides
1936 a prototype for the setresuid() function. Otherwise, it is
1937 up to the program to supply one.
1939 d_statblks (d_statblks.U):
1940 This variable conditionally defines USE_STAT_BLOCKS
1941 if this system has a stat structure declaring
1942 st_blksize and st_blocks.
1944 d_statfs_f_flags (d_statfs_f_flags.U):
1945 This variable conditionally defines the HAS_STRUCT_STATFS_F_FLAGS
1946 symbol, which indicates to struct statfs from has f_flags member.
1947 This kind of struct statfs is coming from sys/mount.h (BSD),
1948 not from sys/statfs.h (SYSV).
1950 d_statfs_s (d_statfs_s.U):
1951 This variable conditionally defines the HAS_STRUCT_STATFS symbol,
1952 which indicates that the struct statfs is supported.
1954 d_statvfs (d_statvfs.U):
1955 This variable conditionally defines the HAS_STATVFS symbol, which
1956 indicates to the C program that the statvfs() routine is available.
1958 d_stdio_cnt_lval (d_stdstdio.U):
1959 This variable conditionally defines STDIO_CNT_LVALUE if the
1960 FILE_cnt macro can be used as an lvalue.
1962 d_stdio_ptr_lval (d_stdstdio.U):
1963 This variable conditionally defines STDIO_PTR_LVALUE if the
1964 FILE_ptr macro can be used as an lvalue.
1966 d_stdio_ptr_lval_nochange_cnt (d_stdstdio.U):
1967 This symbol is defined if using the FILE_ptr macro as an lvalue
1968 to increase the pointer by n leaves File_cnt(fp) unchanged.
1970 d_stdio_ptr_lval_sets_cnt (d_stdstdio.U):
1971 This symbol is defined if using the FILE_ptr macro as an lvalue
1972 to increase the pointer by n has the side effect of decreasing the
1973 value of File_cnt(fp) by n.
1975 d_stdio_stream_array (stdio_streams.U):
1976 This variable tells whether there is an array holding
1979 d_stdiobase (d_stdstdio.U):
1980 This variable conditionally defines USE_STDIO_BASE if this system
1981 has a FILE structure declaring a usable _base field (or equivalent)
1984 d_stdstdio (d_stdstdio.U):
1985 This variable conditionally defines USE_STDIO_PTR if this system
1986 has a FILE structure declaring usable _ptr and _cnt fields (or
1987 equivalent) in stdio.h.
1989 d_strchr (d_strchr.U):
1990 This variable conditionally defines HAS_STRCHR if strchr() and
1991 strrchr() are available for string searching.
1993 d_strcoll (d_strcoll.U):
1994 This variable conditionally defines HAS_STRCOLL if strcoll() is
1995 available to compare strings using collating information.
1997 d_strctcpy (d_strctcpy.U):
1998 This variable conditionally defines the USE_STRUCT_COPY symbol, which
1999 indicates to the C program that this C compiler knows how to copy
2002 d_strerrm (d_strerror.U):
2003 This variable holds what Strerrr is defined as to translate an error
2004 code condition into an error message string. It could be 'strerror'
2005 or a more complex macro emulating strrror with sys_errlist[], or the
2006 "unknown" string when both strerror and sys_errlist are missing.
2008 d_strerror (d_strerror.U):
2009 This variable conditionally defines HAS_STRERROR if strerror() is
2010 available to translate error numbers to strings.
2012 d_strerror_r (d_strerror_r.U):
2013 This variable conditionally defines the HAS_STRERROR_R symbol,
2014 which indicates to the C program that the strerror_r()
2015 routine is available.
2017 d_strftime (d_strftime.U):
2018 This variable conditionally defines the HAS_STRFTIME symbol, which
2019 indicates to the C program that the strftime() routine is available.
2021 d_strlcat (d_strlcat.U):
2022 This variable conditionally defines the HAS_STRLCAT symbol, which
2023 indicates to the C program that the strlcat () routine is available.
2025 d_strlcpy (d_strlcpy.U):
2026 This variable conditionally defines the HAS_STRLCPY symbol, which
2027 indicates to the C program that the strlcpy () routine is available.
2029 d_strtod (d_strtod.U):
2030 This variable conditionally defines the HAS_STRTOD symbol, which
2031 indicates to the C program that the strtod() routine is available
2032 to provide better numeric string conversion than atof().
2034 d_strtol (d_strtol.U):
2035 This variable conditionally defines the HAS_STRTOL symbol, which
2036 indicates to the C program that the strtol() routine is available
2037 to provide better numeric string conversion than atoi() and friends.
2039 d_strtold (d_strtold.U):
2040 This variable conditionally defines the HAS_STRTOLD symbol, which
2041 indicates to the C program that the strtold() routine is available.
2043 d_strtoll (d_strtoll.U):
2044 This variable conditionally defines the HAS_STRTOLL symbol, which
2045 indicates to the C program that the strtoll() routine is available.
2047 d_strtoq (d_strtoq.U):
2048 This variable conditionally defines the HAS_STRTOQ symbol, which
2049 indicates to the C program that the strtoq() routine is available.
2051 d_strtoul (d_strtoul.U):
2052 This variable conditionally defines the HAS_STRTOUL symbol, which
2053 indicates to the C program that the strtoul() routine is available
2054 to provide conversion of strings to unsigned long.
2056 d_strtoull (d_strtoull.U):
2057 This variable conditionally defines the HAS_STRTOULL symbol, which
2058 indicates to the C program that the strtoull() routine is available.
2060 d_strtouq (d_strtouq.U):
2061 This variable conditionally defines the HAS_STRTOUQ symbol, which
2062 indicates to the C program that the strtouq() routine is available.
2064 d_strxfrm (d_strxfrm.U):
2065 This variable conditionally defines HAS_STRXFRM if strxfrm() is
2066 available to transform strings.
2068 d_suidsafe (d_dosuid.U):
2069 This variable conditionally defines SETUID_SCRIPTS_ARE_SECURE_NOW
2070 if setuid scripts can be secure. This test looks in /dev/fd/.
2072 d_symlink (d_symlink.U):
2073 This variable conditionally defines the HAS_SYMLINK symbol, which
2074 indicates to the C program that the symlink() routine is available
2075 to create symbolic links.
2077 d_syscall (d_syscall.U):
2078 This variable conditionally defines HAS_SYSCALL if syscall() is
2079 available call arbitrary system calls.
2081 d_syscallproto (d_syscallproto.U):
2082 This variable conditionally defines the HAS_SYSCALL_PROTO symbol,
2083 which indicates to the C program that the system provides
2084 a prototype for the syscall() function. Otherwise, it is
2085 up to the program to supply one.
2087 d_sysconf (d_sysconf.U):
2088 This variable conditionally defines the HAS_SYSCONF symbol, which
2089 indicates to the C program that the sysconf() routine is available
2090 to determine system related limits and options.
2092 d_sysernlst (d_strerror.U):
2093 This variable conditionally defines HAS_SYS_ERRNOLIST if sys_errnolist[]
2094 is available to translate error numbers to the symbolic name.
2096 d_syserrlst (d_strerror.U):
2097 This variable conditionally defines HAS_SYS_ERRLIST if sys_errlist[] is
2098 available to translate error numbers to strings.
2100 d_system (d_system.U):
2101 This variable conditionally defines HAS_SYSTEM if system() is
2102 available to issue a shell command.
2104 d_tcgetpgrp (d_tcgtpgrp.U):
2105 This variable conditionally defines the HAS_TCGETPGRP symbol, which
2106 indicates to the C program that the tcgetpgrp() routine is available.
2107 to get foreground process group ID.
2109 d_tcsetpgrp (d_tcstpgrp.U):
2110 This variable conditionally defines the HAS_TCSETPGRP symbol, which
2111 indicates to the C program that the tcsetpgrp() routine is available
2112 to set foreground process group ID.
2114 d_telldir (d_readdir.U):
2115 This variable conditionally defines HAS_TELLDIR if telldir() is
2118 d_telldirproto (d_telldirproto.U):
2119 This variable conditionally defines the HAS_TELLDIR_PROTO symbol,
2120 which indicates to the C program that the system provides
2121 a prototype for the telldir() function. Otherwise, it is
2122 up to the program to supply one.
2125 This variable conditionally defines the HAS_TIME symbol, which indicates
2126 that the time() routine exists. The time() routine is normaly
2127 provided on UNIX systems.
2129 d_times (d_times.U):
2130 This variable conditionally defines the HAS_TIMES symbol, which indicates
2131 that the times() routine exists. The times() routine is normaly
2132 provided on UNIX systems. You may have to include <sys/times.h>.
2134 d_tm_tm_gmtoff (i_time.U):
2135 This variable conditionally defines HAS_TM_TM_GMTOFF, which indicates
2136 indicates to the C program that the struct tm has the tm_gmtoff field.
2138 d_tm_tm_zone (i_time.U):
2139 This variable conditionally defines HAS_TM_TM_ZONE, which indicates
2140 indicates to the C program that the struct tm has the tm_zone field.
2142 d_tmpnam_r (d_tmpnam_r.U):
2143 This variable conditionally defines the HAS_TMPNAM_R symbol,
2144 which indicates to the C program that the tmpnam_r()
2145 routine is available.
2147 d_truncate (d_truncate.U):
2148 This variable conditionally defines HAS_TRUNCATE if truncate() is
2149 available to truncate files.
2151 d_ttyname_r (d_ttyname_r.U):
2152 This variable conditionally defines the HAS_TTYNAME_R symbol,
2153 which indicates to the C program that the ttyname_r()
2154 routine is available.
2156 d_tzname (d_tzname.U):
2157 This variable conditionally defines HAS_TZNAME if tzname[] is
2158 available to access timezone names.
2160 d_u32align (d_u32align.U):
2161 This variable tells whether you must access character data
2162 through U32-aligned pointers.
2164 d_ualarm (d_ualarm.U):
2165 This variable conditionally defines the HAS_UALARM symbol, which
2166 indicates to the C program that the ualarm() routine is available.
2168 d_umask (d_umask.U):
2169 This variable conditionally defines the HAS_UMASK symbol, which
2170 indicates to the C program that the umask() routine is available.
2171 to set and get the value of the file creation mask.
2173 d_uname (d_gethname.U):
2174 This variable conditionally defines the HAS_UNAME symbol, which
2175 indicates to the C program that the uname() routine may be
2176 used to derive the host name.
2178 d_union_semun (d_union_semun.U):
2179 This variable conditionally defines HAS_UNION_SEMUN if the
2180 union semun is defined by including <sys/sem.h>.
2182 d_unordered (d_unordered.U):
2183 This variable conditionally defines the HAS_UNORDERED symbol, which
2184 indicates to the C program that the unordered() routine is available.
2186 d_usleep (d_usleep.U):
2187 This variable conditionally defines HAS_USLEEP if usleep() is
2188 available to do high granularity sleeps.
2190 d_usleepproto (d_usleepproto.U):
2191 This variable conditionally defines the HAS_USLEEP_PROTO symbol,
2192 which indicates to the C program that the system provides
2193 a prototype for the usleep() function. Otherwise, it is
2194 up to the program to supply one.
2196 d_ustat (d_ustat.U):
2197 This variable conditionally defines HAS_USTAT if ustat() is
2198 available to query file system statistics by dev_t.
2200 d_vendorarch (vendorarch.U):
2201 This variable conditionally defined PERL_VENDORARCH.
2203 d_vendorbin (vendorbin.U):
2204 This variable conditionally defines PERL_VENDORBIN.
2206 d_vendorlib (vendorlib.U):
2207 This variable conditionally defines PERL_VENDORLIB.
2209 d_vendorscript (vendorscript.U):
2210 This variable conditionally defines PERL_VENDORSCRIPT.
2212 d_vfork (d_vfork.U):
2213 This variable conditionally defines the HAS_VFORK symbol, which
2214 indicates the vfork() routine is available.
2216 d_void_closedir (d_closedir.U):
2217 This variable conditionally defines VOID_CLOSEDIR if closedir()
2218 does not return a value.
2220 d_voidsig (d_voidsig.U):
2221 This variable conditionally defines VOIDSIG if this system
2222 declares "void (*signal(...))()" in signal.h. The old way was to
2223 declare it as "int (*signal(...))()".
2225 d_voidtty (i_sysioctl.U):
2226 This variable conditionally defines USE_IOCNOTTY to indicate that the
2227 ioctl() call with TIOCNOTTY should be used to void tty association.
2228 Otherwise (on USG probably), it is enough to close the standard file
2229 decriptors and do a setpgrp().
2231 d_volatile (d_volatile.U):
2232 This variable conditionally defines the HASVOLATILE symbol, which
2233 indicates to the C program that this C compiler knows about the
2234 volatile declaration.
2236 d_vprintf (d_vprintf.U):
2237 This variable conditionally defines the HAS_VPRINTF symbol, which
2238 indicates to the C program that the vprintf() routine is available
2239 to printf with a pointer to an argument list.
2241 d_wait4 (d_wait4.U):
2242 This variable conditionally defines the HAS_WAIT4 symbol, which
2243 indicates the wait4() routine is available.
2245 d_waitpid (d_waitpid.U):
2246 This variable conditionally defines HAS_WAITPID if waitpid() is
2247 available to wait for child process.
2249 d_wcstombs (d_wcstombs.U):
2250 This variable conditionally defines the HAS_WCSTOMBS symbol, which
2251 indicates to the C program that the wcstombs() routine is available
2252 to convert wide character strings to multibyte strings.
2254 d_wctomb (d_wctomb.U):
2255 This variable conditionally defines the HAS_WCTOMB symbol, which
2256 indicates to the C program that the wctomb() routine is available
2257 to convert a wide character to a multibyte.
2259 d_writev (d_writev.U):
2260 This variable conditionally defines the HAS_WRITEV symbol, which
2261 indicates to the C program that the writev() routine is available.
2264 This variable conditionally defines the symbol XENIX, which alerts
2265 the C program that it runs under Xenix.
2268 This variable is used internally by Configure to determine the
2269 full pathname (if any) of the date program. After Configure runs,
2270 the value is reset to a plain "date" and is not useful.
2272 db_hashtype (i_db.U):
2273 This variable contains the type of the hash structure element
2274 in the <db.h> header file. In older versions of DB, it was
2275 int, while in newer ones it is u_int32_t.
2277 db_prefixtype (i_db.U):
2278 This variable contains the type of the prefix structure element
2279 in the <db.h> header file. In older versions of DB, it was
2280 int, while in newer ones it is size_t.
2282 db_version_major (i_db.U):
2283 This variable contains the major version number of
2284 Berkeley DB found in the <db.h> header file.
2286 db_version_minor (i_db.U):
2287 This variable contains the minor version number of
2288 Berkeley DB found in the <db.h> header file.
2289 For DB version 1 this is always 0.
2291 db_version_patch (i_db.U):
2292 This variable contains the patch version number of
2293 Berkeley DB found in the <db.h> header file.
2294 For DB version 1 this is always 0.
2296 defvoidused (voidflags.U):
2297 This variable contains the default value of the VOIDUSED symbol (15).
2299 direntrytype (i_dirent.U):
2300 This symbol is set to 'struct direct' or 'struct dirent' depending on
2301 whether dirent is available or not. You should use this pseudo type to
2302 portably declare your directory entries.
2305 This variable contains the extension that is to be used for the
2306 dynamically loaded modules that perl generaties.
2309 This variable contains the name of the dynamic loading file that
2310 will be used with the package.
2312 doublesize (doublesize.U):
2313 This variable contains the value of the DOUBLESIZE symbol, which
2314 indicates to the C program how many bytes there are in a double.
2316 drand01 (randfunc.U):
2317 Indicates the macro to be used to generate normalized
2318 random numbers. Uses randfunc, often divided by
2319 (double) (((unsigned long) 1 << randbits)) in order to
2320 normalize the result.
2321 In C programs, the macro 'Drand01' is mapped to drand01.
2323 drand48_r_proto (d_drand48_r.U):
2324 This variable encodes the prototype of drand48_r.
2325 It is zero if d_drand48_r is undef, and one of the
2326 REENTRANT_PROTO_T_ABC macros of reentr.h if d_drand48_r
2329 dynamic_ext (Extensions.U):
2330 This variable holds a list of XS extension files we want to
2331 link dynamically into the package. It is used by Makefile.
2333 eagain (nblock_io.U):
2334 This variable bears the symbolic errno code set by read() when no
2335 data is present on the file and non-blocking I/O was enabled (otherwise,
2336 read() blocks naturally).
2339 This variable conditionally defines EBCDIC if this
2340 system uses EBCDIC encoding. Among other things, this
2341 means that the character ranges are not contiguous.
2345 This variable is used internally by Configure to determine the
2346 full pathname (if any) of the echo program. After Configure runs,
2347 the value is reset to a plain "echo" and is not useful.
2350 This variable is used internally by Configure to determine the
2351 full pathname (if any) of the egrep program. After Configure runs,
2352 the value is reset to a plain "egrep" and is not useful.
2355 This variable is defined but not used by Configure.
2356 The value is a plain '' and is not useful.
2358 endgrent_r_proto (d_endgrent_r.U):
2359 This variable encodes the prototype of endgrent_r.
2360 It is zero if d_endgrent_r is undef, and one of the
2361 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endgrent_r
2364 endhostent_r_proto (d_endhostent_r.U):
2365 This variable encodes the prototype of endhostent_r.
2366 It is zero if d_endhostent_r is undef, and one of the
2367 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endhostent_r
2370 endnetent_r_proto (d_endnetent_r.U):
2371 This variable encodes the prototype of endnetent_r.
2372 It is zero if d_endnetent_r is undef, and one of the
2373 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endnetent_r
2376 endprotoent_r_proto (d_endprotoent_r.U):
2377 This variable encodes the prototype of endprotoent_r.
2378 It is zero if d_endprotoent_r is undef, and one of the
2379 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endprotoent_r
2382 endpwent_r_proto (d_endpwent_r.U):
2383 This variable encodes the prototype of endpwent_r.
2384 It is zero if d_endpwent_r is undef, and one of the
2385 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endpwent_r
2388 endservent_r_proto (d_endservent_r.U):
2389 This variable encodes the prototype of endservent_r.
2390 It is zero if d_endservent_r is undef, and one of the
2391 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endservent_r
2395 When running under Eunice this variable contains a command which will
2396 convert a shell script to the proper form of text file for it to be
2397 executable by the shell. On other systems it is a no-op.
2400 This is an old synonym for _exe.
2403 This variable is used internally by Configure to determine the
2404 full pathname (if any) of the expr program. After Configure runs,
2405 the value is reset to a plain "expr" and is not useful.
2407 extensions (Extensions.U):
2408 This variable holds a list of all extension files (both XS and
2409 non-xs linked into the package. It is propagated to Config.pm
2410 and is typically used to test whether a particular extesion
2414 This variable holds a list of extra modules to install.
2416 fflushall (fflushall.U):
2417 This symbol, if defined, tells that to flush
2418 all pending stdio output one must loop through all
2419 the stdio file handles stored in an array and fflush them.
2420 Note that if fflushNULL is defined, fflushall will not
2421 even be probed for and will be left undefined.
2423 fflushNULL (fflushall.U):
2424 This symbol, if defined, tells that fflush(NULL) does flush
2425 all pending stdio output.
2428 This variable is defined but not used by Configure.
2429 The value is a plain '' and is not useful.
2431 firstmakefile (Unix.U):
2432 This variable defines the first file searched by make. On unix,
2433 it is makefile (then Makefile). On case-insensitive systems,
2434 it might be something else. This is only used to deal with
2435 convoluted make depend tricks.
2438 This variable is defined but not used by Configure.
2439 The value is a plain '' and is not useful.
2441 fpossize (fpossize.U):
2442 This variable contains the size of a fpostype in bytes.
2444 fpostype (fpostype.U):
2445 This variable defines Fpos_t to be something like fpos_t, long,
2446 uint, or whatever type is used to declare file positions in libc.
2448 freetype (mallocsrc.U):
2449 This variable contains the return type of free(). It is usually
2450 void, but occasionally int.
2453 This variable contains the command used by Configure
2454 to copy files from the target host. Useful and available
2455 only during Perl build.
2456 The string ':' if not cross-compiling.
2459 This variable contains the full pathname to 'ar', whether or
2460 not the user has specified 'portability'. This is only used
2464 This variable contains the full pathname to 'csh', whether or
2465 not the user has specified 'portability'. This is only used
2466 in the compiled C program, and we assume that all systems which
2467 can share this executable will have the same full pathname to
2470 full_sed (Loc_sed.U):
2471 This variable contains the full pathname to 'sed', whether or
2472 not the user has specified 'portability'. This is only used
2473 in the compiled C program, and we assume that all systems which
2474 can share this executable will have the same full pathname to
2477 gccansipedantic (gccvers.U):
2478 If GNU cc (gcc) is used, this variable will enable (if set) the
2479 -ansi and -pedantic ccflags for building core files (through
2480 cflags script). (See Porting/pumpkin.pod for full description).
2482 gccosandvers (gccvers.U):
2483 If GNU cc (gcc) is used, this variable holds the operating system
2484 and version used to compile gcc. It is set to '' if not gcc,
2485 or if nothing useful can be parsed as the os version.
2487 gccversion (gccvers.U):
2488 If GNU cc (gcc) is used, this variable holds '1' or '2' to
2489 indicate whether the compiler is version 1 or 2. This is used in
2490 setting some of the default cflags. It is set to '' if not gcc.
2492 getgrent_r_proto (d_getgrent_r.U):
2493 This variable encodes the prototype of getgrent_r.
2494 It is zero if d_getgrent_r is undef, and one of the
2495 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrent_r
2498 getgrgid_r_proto (d_getgrgid_r.U):
2499 This variable encodes the prototype of getgrgid_r.
2500 It is zero if d_getgrgid_r is undef, and one of the
2501 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrgid_r
2504 getgrnam_r_proto (d_getgrnam_r.U):
2505 This variable encodes the prototype of getgrnam_r.
2506 It is zero if d_getgrnam_r is undef, and one of the
2507 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrnam_r
2510 gethostbyaddr_r_proto (d_gethostbyaddr_r.U):
2511 This variable encodes the prototype of gethostbyaddr_r.
2512 It is zero if d_gethostbyaddr_r is undef, and one of the
2513 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyaddr_r
2516 gethostbyname_r_proto (d_gethostbyname_r.U):
2517 This variable encodes the prototype of gethostbyname_r.
2518 It is zero if d_gethostbyname_r is undef, and one of the
2519 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyname_r
2522 gethostent_r_proto (d_gethostent_r.U):
2523 This variable encodes the prototype of gethostent_r.
2524 It is zero if d_gethostent_r is undef, and one of the
2525 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostent_r
2528 getlogin_r_proto (d_getlogin_r.U):
2529 This variable encodes the prototype of getlogin_r.
2530 It is zero if d_getlogin_r is undef, and one of the
2531 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getlogin_r
2534 getnetbyaddr_r_proto (d_getnetbyaddr_r.U):
2535 This variable encodes the prototype of getnetbyaddr_r.
2536 It is zero if d_getnetbyaddr_r is undef, and one of the
2537 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyaddr_r
2540 getnetbyname_r_proto (d_getnetbyname_r.U):
2541 This variable encodes the prototype of getnetbyname_r.
2542 It is zero if d_getnetbyname_r is undef, and one of the
2543 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyname_r
2546 getnetent_r_proto (d_getnetent_r.U):
2547 This variable encodes the prototype of getnetent_r.
2548 It is zero if d_getnetent_r is undef, and one of the
2549 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetent_r
2552 getprotobyname_r_proto (d_getprotobyname_r.U):
2553 This variable encodes the prototype of getprotobyname_r.
2554 It is zero if d_getprotobyname_r is undef, and one of the
2555 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobyname_r
2558 getprotobynumber_r_proto (d_getprotobynumber_r.U):
2559 This variable encodes the prototype of getprotobynumber_r.
2560 It is zero if d_getprotobynumber_r is undef, and one of the
2561 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobynumber_r
2564 getprotoent_r_proto (d_getprotoent_r.U):
2565 This variable encodes the prototype of getprotoent_r.
2566 It is zero if d_getprotoent_r is undef, and one of the
2567 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotoent_r
2570 getpwent_r_proto (d_getpwent_r.U):
2571 This variable encodes the prototype of getpwent_r.
2572 It is zero if d_getpwent_r is undef, and one of the
2573 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwent_r
2576 getpwnam_r_proto (d_getpwnam_r.U):
2577 This variable encodes the prototype of getpwnam_r.
2578 It is zero if d_getpwnam_r is undef, and one of the
2579 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwnam_r
2582 getpwuid_r_proto (d_getpwuid_r.U):
2583 This variable encodes the prototype of getpwuid_r.
2584 It is zero if d_getpwuid_r is undef, and one of the
2585 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwuid_r
2588 getservbyname_r_proto (d_getservbyname_r.U):
2589 This variable encodes the prototype of getservbyname_r.
2590 It is zero if d_getservbyname_r is undef, and one of the
2591 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyname_r
2594 getservbyport_r_proto (d_getservbyport_r.U):
2595 This variable encodes the prototype of getservbyport_r.
2596 It is zero if d_getservbyport_r is undef, and one of the
2597 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyport_r
2600 getservent_r_proto (d_getservent_r.U):
2601 This variable encodes the prototype of getservent_r.
2602 It is zero if d_getservent_r is undef, and one of the
2603 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservent_r
2606 getspnam_r_proto (d_getspnam_r.U):
2607 This variable encodes the prototype of getspnam_r.
2608 It is zero if d_getspnam_r is undef, and one of the
2609 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getspnam_r
2613 This variable contains the format string used for printing a Gid_t.
2615 gidsign (gidsign.U):
2616 This variable contains the signedness of a gidtype.
2617 1 for unsigned, -1 for signed.
2619 gidsize (gidsize.U):
2620 This variable contains the size of a gidtype in bytes.
2622 gidtype (gidtype.U):
2623 This variable defines Gid_t to be something like gid_t, int,
2624 ushort, or whatever type is used to declare the return type
2625 of getgid(). Typically, it is the type of group ids in the kernel.
2628 This variable holds the general path (space-separated) used to
2629 find libraries. It may contain directories that do not exist on
2630 this platform, libpth is the cleaned-up version.
2633 This variable is used internally by Configure to determine the
2634 full pathname (if any) of the gmake program. After Configure runs,
2635 the value is reset to a plain "gmake" and is not useful.
2637 gmtime_r_proto (d_gmtime_r.U):
2638 This variable encodes the prototype of gmtime_r.
2639 It is zero if d_gmtime_r is undef, and one of the
2640 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gmtime_r
2643 gnulibc_version (d_gnulibc.U):
2644 This variable contains the version number of the GNU C library.
2645 It is usually something like '2.2.5'. It is a plain '' if this
2646 is not the GNU C library, or if the version is unknown.
2649 This variable is used internally by Configure to determine the
2650 full pathname (if any) of the grep program. After Configure runs,
2651 the value is reset to a plain "grep" and is not useful.
2654 This variable contains a command that produces the text of the
2655 /etc/group file. This is normally "cat /etc/group", but can be
2656 "ypcat group" when NIS is used.
2657 On some systems, such as os390, there may be no equivalent
2658 command, in which case this variable is unset.
2660 groupstype (groupstype.U):
2661 This variable defines Groups_t to be something like gid_t, int,
2662 ushort, or whatever type is used for the second argument to
2663 getgroups() and setgroups(). Usually, this is the same as
2664 gidtype (gid_t), but sometimes it isn't.
2667 This variable is used internally by Configure to determine the
2668 full pathname (if any) of the gzip program. After Configure runs,
2669 the value is reset to a plain "gzip" and is not useful.
2671 h_fcntl (h_fcntl.U):
2672 This is variable gets set in various places to tell i_fcntl that
2673 <fcntl.h> should be included.
2675 h_sysfile (h_sysfile.U):
2676 This is variable gets set in various places to tell i_sys_file that
2677 <sys/file.h> should be included.
2680 Gives the type of hints used for previous answers. May be one of
2681 "default", "recommended" or "previous".
2684 This variable contains a command that produces the text of the
2685 /etc/hosts file. This is normally "cat /etc/hosts", but can be
2686 "ypcat hosts" when NIS is used.
2687 On some systems, such as os390, there may be no equivalent
2688 command, in which case this variable is unset.
2690 html1dir (html1dir.U):
2691 This variable contains the name of the directory in which html
2692 source pages are to be put. This directory is for pages
2693 that describe whole programs, not libraries or modules. It
2694 is intended to correspond roughly to section 1 of the Unix
2697 html1direxp (html1dir.U):
2698 This variable is the same as the html1dir variable, but is filename
2699 expanded at configuration time, for convenient use in makefiles.
2701 html3dir (html3dir.U):
2702 This variable contains the name of the directory in which html
2703 source pages are to be put. This directory is for pages
2704 that describe libraries or modules. It is intended to
2705 correspond roughly to section 3 of the Unix manuals.
2707 html3direxp (html3dir.U):
2708 This variable is the same as the html3dir variable, but is filename
2709 expanded at configuration time, for convenient use in makefiles.
2712 This variable is the size of an I16 in bytes.
2715 This variable contains the C type used for Perl's I16.
2718 This variable is the size of an I32 in bytes.
2721 This variable contains the C type used for Perl's I32.
2724 This variable is the size of an I64 in bytes.
2727 This variable contains the C type used for Perl's I64.
2730 This variable is the size of an I8 in bytes.
2733 This variable contains the C type used for Perl's I8.
2735 i_arpainet (i_arpainet.U):
2736 This variable conditionally defines the I_ARPA_INET symbol,
2737 and indicates whether a C program should include <arpa/inet.h>.
2739 i_bsdioctl (i_sysioctl.U):
2740 This variable conditionally defines the I_SYS_BSDIOCTL symbol, which
2741 indicates to the C program that <sys/bsdioctl.h> exists and should
2744 i_crypt (i_crypt.U):
2745 This variable conditionally defines the I_CRYPT symbol, and indicates
2746 whether a C program should include <crypt.h>.
2749 This variable conditionally defines the I_DB symbol, and indicates
2750 whether a C program may include Berkeley's DB include file <db.h>.
2753 This variable conditionally defines the I_DBM symbol, which
2754 indicates to the C program that <dbm.h> exists and should
2757 i_dirent (i_dirent.U):
2758 This variable conditionally defines I_DIRENT, which indicates
2759 to the C program that it should include <dirent.h>.
2762 This variable conditionally defines the I_DLD symbol, which
2763 indicates to the C program that <dld.h> (GNU dynamic loading)
2764 exists and should be included.
2766 i_dlfcn (i_dlfcn.U):
2767 This variable conditionally defines the I_DLFCN symbol, which
2768 indicates to the C program that <dlfcn.h> exists and should
2771 i_fcntl (i_fcntl.U):
2772 This variable controls the value of I_FCNTL (which tells
2773 the C program to include <fcntl.h>).
2775 i_float (i_float.U):
2776 This variable conditionally defines the I_FLOAT symbol, and indicates
2777 whether a C program may include <float.h> to get symbols like DBL_MAX
2778 or DBL_MIN, i.e. machine dependent floating point values.
2781 This variable conditionally defines the I_FP symbol, and indicates
2782 whether a C program should include <fp.h>.
2784 i_fp_class (i_fp_class.U):
2785 This variable conditionally defines the I_FP_CLASS symbol, and indicates
2786 whether a C program should include <fp_class.h>.
2789 This variable conditionally defines the I_GDBM symbol, which
2790 indicates to the C program that <gdbm.h> exists and should
2794 This variable conditionally defines the I_GRP symbol, and indicates
2795 whether a C program should include <grp.h>.
2797 i_ieeefp (i_ieeefp.U):
2798 This variable conditionally defines the I_IEEEFP symbol, and indicates
2799 whether a C program should include <ieeefp.h>.
2801 i_inttypes (i_inttypes.U):
2802 This variable conditionally defines the I_INTTYPES symbol,
2803 and indicates whether a C program should include <inttypes.h>.
2805 i_langinfo (i_langinfo.U):
2806 This variable conditionally defines the I_LANGINFO symbol,
2807 and indicates whether a C program should include <langinfo.h>.
2809 i_libutil (i_libutil.U):
2810 This variable conditionally defines the I_LIBUTIL symbol, and indicates
2811 whether a C program should include <libutil.h>.
2813 i_limits (i_limits.U):
2814 This variable conditionally defines the I_LIMITS symbol, and indicates
2815 whether a C program may include <limits.h> to get symbols like WORD_BIT
2818 i_locale (i_locale.U):
2819 This variable conditionally defines the I_LOCALE symbol,
2820 and indicates whether a C program should include <locale.h>.
2822 i_machcthr (i_machcthr.U):
2823 This variable conditionally defines the I_MACH_CTHREADS symbol,
2824 and indicates whether a C program should include <mach/cthreads.h>.
2826 i_malloc (i_malloc.U):
2827 This variable conditionally defines the I_MALLOC symbol, and indicates
2828 whether a C program should include <malloc.h>.
2831 This variable conditionally defines the I_MATH symbol, and indicates
2832 whether a C program may include <math.h>.
2834 i_memory (i_memory.U):
2835 This variable conditionally defines the I_MEMORY symbol, and indicates
2836 whether a C program should include <memory.h>.
2838 i_mntent (i_mntent.U):
2839 This variable conditionally defines the I_MNTENT symbol, and indicates
2840 whether a C program should include <mntent.h>.
2843 This variable conditionally defines the I_NDBM symbol, which
2844 indicates to the C program that <ndbm.h> exists and should
2847 i_netdb (i_netdb.U):
2848 This variable conditionally defines the I_NETDB symbol, and indicates
2849 whether a C program should include <netdb.h>.
2851 i_neterrno (i_neterrno.U):
2852 This variable conditionally defines the I_NET_ERRNO symbol, which
2853 indicates to the C program that <net/errno.h> exists and should
2856 i_netinettcp (i_netinettcp.U):
2857 This variable conditionally defines the I_NETINET_TCP symbol,
2858 and indicates whether a C program should include <netinet/tcp.h>.
2861 This variable conditionally defines I_NETINET_IN, which indicates
2862 to the C program that it should include <netinet/in.h>. Otherwise,
2863 you may try <sys/in.h>.
2866 This variable conditionally defines the I_POLL symbol, and indicates
2867 whether a C program should include <poll.h>.
2870 This variable conditionally defines the I_PROT symbol, and indicates
2871 whether a C program should include <prot.h>.
2873 i_pthread (i_pthread.U):
2874 This variable conditionally defines the I_PTHREAD symbol,
2875 and indicates whether a C program should include <pthread.h>.
2878 This variable conditionally defines I_PWD, which indicates
2879 to the C program that it should include <pwd.h>.
2881 i_rpcsvcdbm (i_dbm.U):
2882 This variable conditionally defines the I_RPCSVC_DBM symbol, which
2883 indicates to the C program that <rpcsvc/dbm.h> exists and should
2884 be included. Some System V systems might need this instead of <dbm.h>.
2887 This variable conditionally defines the I_SFIO symbol,
2888 and indicates whether a C program should include <sfio.h>.
2890 i_sgtty (i_termio.U):
2891 This variable conditionally defines the I_SGTTY symbol, which
2892 indicates to the C program that it should include <sgtty.h> rather
2895 i_shadow (i_shadow.U):
2896 This variable conditionally defines the I_SHADOW symbol, and indicates
2897 whether a C program should include <shadow.h>.
2899 i_socks (i_socks.U):
2900 This variable conditionally defines the I_SOCKS symbol, and indicates
2901 whether a C program should include <socks.h>.
2903 i_stdarg (i_varhdr.U):
2904 This variable conditionally defines the I_STDARG symbol, which
2905 indicates to the C program that <stdarg.h> exists and should
2908 i_stddef (i_stddef.U):
2909 This variable conditionally defines the I_STDDEF symbol, which
2910 indicates to the C program that <stddef.h> exists and should
2913 i_stdlib (i_stdlib.U):
2914 This variable conditionally defines the I_STDLIB symbol, which
2915 indicates to the C program that <stdlib.h> exists and should
2918 i_string (i_string.U):
2919 This variable conditionally defines the I_STRING symbol, which
2920 indicates that <string.h> should be included rather than <strings.h>.
2922 i_sunmath (i_sunmath.U):
2923 This variable conditionally defines the I_SUNMATH symbol, and indicates
2924 whether a C program should include <sunmath.h>.
2926 i_sysaccess (i_sysaccess.U):
2927 This variable conditionally defines the I_SYS_ACCESS symbol,
2928 and indicates whether a C program should include <sys/access.h>.
2930 i_sysdir (i_sysdir.U):
2931 This variable conditionally defines the I_SYS_DIR symbol, and indicates
2932 whether a C program should include <sys/dir.h>.
2934 i_sysfile (i_sysfile.U):
2935 This variable conditionally defines the I_SYS_FILE symbol, and indicates
2936 whether a C program should include <sys/file.h> to get R_OK and friends.
2938 i_sysfilio (i_sysioctl.U):
2939 This variable conditionally defines the I_SYS_FILIO symbol, which
2940 indicates to the C program that <sys/filio.h> exists and should
2941 be included in preference to <sys/ioctl.h>.
2944 This variable conditionally defines I_SYS_IN, which indicates
2945 to the C program that it should include <sys/in.h> instead of
2948 i_sysioctl (i_sysioctl.U):
2949 This variable conditionally defines the I_SYS_IOCTL symbol, which
2950 indicates to the C program that <sys/ioctl.h> exists and should
2953 i_syslog (i_syslog.U):
2954 This variable conditionally defines the I_SYSLOG symbol,
2955 and indicates whether a C program should include <syslog.h>.
2957 i_sysmman (i_sysmman.U):
2958 This variable conditionally defines the I_SYS_MMAN symbol, and
2959 indicates whether a C program should include <sys/mman.h>.
2961 i_sysmode (i_sysmode.U):
2962 This variable conditionally defines the I_SYSMODE symbol,
2963 and indicates whether a C program should include <sys/mode.h>.
2965 i_sysmount (i_sysmount.U):
2966 This variable conditionally defines the I_SYSMOUNT symbol,
2967 and indicates whether a C program should include <sys/mount.h>.
2969 i_sysndir (i_sysndir.U):
2970 This variable conditionally defines the I_SYS_NDIR symbol, and indicates
2971 whether a C program should include <sys/ndir.h>.
2973 i_sysparam (i_sysparam.U):
2974 This variable conditionally defines the I_SYS_PARAM symbol, and indicates
2975 whether a C program should include <sys/param.h>.
2977 i_sysresrc (i_sysresrc.U):
2978 This variable conditionally defines the I_SYS_RESOURCE symbol,
2979 and indicates whether a C program should include <sys/resource.h>.
2981 i_syssecrt (i_syssecrt.U):
2982 This variable conditionally defines the I_SYS_SECURITY symbol,
2983 and indicates whether a C program should include <sys/security.h>.
2985 i_sysselct (i_sysselct.U):
2986 This variable conditionally defines I_SYS_SELECT, which indicates
2987 to the C program that it should include <sys/select.h> in order to
2988 get the definition of struct timeval.
2990 i_syssockio (i_sysioctl.U):
2991 This variable conditionally defines I_SYS_SOCKIO to indicate to the
2992 C program that socket ioctl codes may be found in <sys/sockio.h>
2993 instead of <sys/ioctl.h>.
2995 i_sysstat (i_sysstat.U):
2996 This variable conditionally defines the I_SYS_STAT symbol,
2997 and indicates whether a C program should include <sys/stat.h>.
2999 i_sysstatfs (i_sysstatfs.U):
3000 This variable conditionally defines the I_SYSSTATFS symbol,
3001 and indicates whether a C program should include <sys/statfs.h>.
3003 i_sysstatvfs (i_sysstatvfs.U):
3004 This variable conditionally defines the I_SYSSTATVFS symbol,
3005 and indicates whether a C program should include <sys/statvfs.h>.
3007 i_systime (i_time.U):
3008 This variable conditionally defines I_SYS_TIME, which indicates
3009 to the C program that it should include <sys/time.h>.
3011 i_systimek (i_time.U):
3012 This variable conditionally defines I_SYS_TIME_KERNEL, which
3013 indicates to the C program that it should include <sys/time.h>
3014 with KERNEL defined.
3016 i_systimes (i_systimes.U):
3017 This variable conditionally defines the I_SYS_TIMES symbol, and indicates
3018 whether a C program should include <sys/times.h>.
3020 i_systypes (i_systypes.U):
3021 This variable conditionally defines the I_SYS_TYPES symbol,
3022 and indicates whether a C program should include <sys/types.h>.
3024 i_sysuio (i_sysuio.U):
3025 This variable conditionally defines the I_SYSUIO symbol, and indicates
3026 whether a C program should include <sys/uio.h>.
3028 i_sysun (i_sysun.U):
3029 This variable conditionally defines I_SYS_UN, which indicates
3030 to the C program that it should include <sys/un.h> to get UNIX
3031 domain socket definitions.
3033 i_sysutsname (i_sysutsname.U):
3034 This variable conditionally defines the I_SYSUTSNAME symbol,
3035 and indicates whether a C program should include <sys/utsname.h>.
3037 i_sysvfs (i_sysvfs.U):
3038 This variable conditionally defines the I_SYSVFS symbol,
3039 and indicates whether a C program should include <sys/vfs.h>.
3041 i_syswait (i_syswait.U):
3042 This variable conditionally defines I_SYS_WAIT, which indicates
3043 to the C program that it should include <sys/wait.h>.
3045 i_termio (i_termio.U):
3046 This variable conditionally defines the I_TERMIO symbol, which
3047 indicates to the C program that it should include <termio.h> rather
3050 i_termios (i_termio.U):
3051 This variable conditionally defines the I_TERMIOS symbol, which
3052 indicates to the C program that the POSIX <termios.h> file is
3056 This variable conditionally defines I_TIME, which indicates
3057 to the C program that it should include <time.h>.
3059 i_unistd (i_unistd.U):
3060 This variable conditionally defines the I_UNISTD symbol, and indicates
3061 whether a C program should include <unistd.h>.
3063 i_ustat (i_ustat.U):
3064 This variable conditionally defines the I_USTAT symbol, and indicates
3065 whether a C program should include <ustat.h>.
3067 i_utime (i_utime.U):
3068 This variable conditionally defines the I_UTIME symbol, and indicates
3069 whether a C program should include <utime.h>.
3071 i_values (i_values.U):
3072 This variable conditionally defines the I_VALUES symbol, and indicates
3073 whether a C program may include <values.h> to get symbols like MAXLONG
3076 i_varargs (i_varhdr.U):
3077 This variable conditionally defines I_VARARGS, which indicates
3078 to the C program that it should include <varargs.h>.
3080 i_varhdr (i_varhdr.U):
3081 Contains the name of the header to be included to get va_dcl definition.
3082 Typically one of varargs.h or stdarg.h.
3084 i_vfork (i_vfork.U):
3085 This variable conditionally defines the I_VFORK symbol, and indicates
3086 whether a C program should include vfork.h.
3088 ignore_versioned_solibs (libs.U):
3089 This variable should be non-empty if non-versioned shared
3090 libraries (libfoo.so.x.y) are to be ignored (because they
3091 cannot be linked against).
3093 inc_version_list (inc_version_list.U):
3094 This variable specifies the list of subdirectories in over
3095 which perl.c:incpush() and lib/lib.pm will automatically
3096 search when adding directories to @INC. The elements in
3097 the list are separated by spaces. This is only useful
3098 if you have a perl library directory tree structured like the
3099 default one. See INSTALL for how this works. The versioned
3100 site_perl directory was introduced in 5.005, so that is the
3101 lowest possible value.
3103 inc_version_list_init (inc_version_list.U):
3104 This variable holds the same list as inc_version_list, but
3105 each item is enclosed in double quotes and separated by commas,
3106 suitable for use in the PERL_INC_VERSION_LIST initialization.
3109 This variable must preceed the normal include path to get hte
3110 right one, as in "$incpath/usr/include" or "$incpath/usr/lib".
3111 Value can be "" or "/bsd43" on mips.
3114 This variable is defined but not used by Configure.
3115 The value is a plain '' and is not useful.
3117 installarchlib (archlib.U):
3118 This variable is really the same as archlibexp but may differ on
3119 those systems using AFS. For extra portability, only this variable
3120 should be used in makefiles.
3123 This variable is the same as binexp unless AFS is running in which case
3124 the user is explicitely prompted for it. This variable should always
3125 be used in your makefiles for maximum portability.
3127 installhtml1dir (html1dir.U):
3128 This variable is really the same as html1direxp, unless you are
3129 using a different installprefix. For extra portability, you
3130 should only use this variable within your makefiles.
3132 installhtml3dir (html3dir.U):
3133 This variable is really the same as html3direxp, unless you are
3134 using a different installprefix. For extra portability, you
3135 should only use this variable within your makefiles.
3137 installman1dir (man1dir.U):
3138 This variable is really the same as man1direxp, unless you are using
3139 AFS in which case it points to the read/write location whereas
3140 man1direxp only points to the read-only access location. For extra
3141 portability, you should only use this variable within your makefiles.
3143 installman3dir (man3dir.U):
3144 This variable is really the same as man3direxp, unless you are using
3145 AFS in which case it points to the read/write location whereas
3146 man3direxp only points to the read-only access location. For extra
3147 portability, you should only use this variable within your makefiles.
3149 installprefix (installprefix.U):
3150 This variable holds the name of the directory below which
3151 "make install" will install the package. For most users, this
3152 is the same as prefix. However, it is useful for
3153 installing the software into a different (usually temporary)
3154 location after which it can be bundled up and moved somehow
3155 to the final location specified by prefix.
3157 installprefixexp (installprefix.U):
3158 This variable holds the full absolute path of installprefix
3159 with all ~-expansion done.
3161 installprivlib (privlib.U):
3162 This variable is really the same as privlibexp but may differ on
3163 those systems using AFS. For extra portability, only this variable
3164 should be used in makefiles.
3166 installscript (scriptdir.U):
3167 This variable is usually the same as scriptdirexp, unless you are on
3168 a system running AFS, in which case they may differ slightly. You
3169 should always use this variable within your makefiles for portability.
3171 installsitearch (sitearch.U):
3172 This variable is really the same as sitearchexp but may differ on
3173 those systems using AFS. For extra portability, only this variable
3174 should be used in makefiles.
3176 installsitebin (sitebin.U):
3177 This variable is usually the same as sitebinexp, unless you are on
3178 a system running AFS, in which case they may differ slightly. You
3179 should always use this variable within your makefiles for portability.
3181 installsitehtml1dir (sitehtml1dir.U):
3182 This variable is really the same as sitehtml1direxp, unless you are using
3183 AFS in which case it points to the read/write location whereas
3184 html1direxp only points to the read-only access location. For extra
3185 portability, you should only use this variable within your makefiles.
3187 installsitehtml3dir (sitehtml3dir.U):
3188 This variable is really the same as sitehtml3direxp, unless you are using
3189 AFS in which case it points to the read/write location whereas
3190 html3direxp only points to the read-only access location. For extra
3191 portability, you should only use this variable within your makefiles.
3193 installsitelib (sitelib.U):
3194 This variable is really the same as sitelibexp but may differ on
3195 those systems using AFS. For extra portability, only this variable
3196 should be used in makefiles.
3198 installsiteman1dir (siteman1dir.U):
3199 This variable is really the same as siteman1direxp, unless you are using
3200 AFS in which case it points to the read/write location whereas
3201 man1direxp only points to the read-only access location. For extra
3202 portability, you should only use this variable within your makefiles.
3204 installsiteman3dir (siteman3dir.U):
3205 This variable is really the same as siteman3direxp, unless you are using
3206 AFS in which case it points to the read/write location whereas
3207 man3direxp only points to the read-only access location. For extra
3208 portability, you should only use this variable within your makefiles.
3210 installsitescript (sitescript.U):
3211 This variable is usually the same as sitescriptexp, unless you are on
3212 a system running AFS, in which case they may differ slightly. You
3213 should always use this variable within your makefiles for portability.
3215 installstyle (installstyle.U):
3216 This variable describes the "style" of the perl installation.
3217 This is intended to be useful for tools that need to
3218 manipulate entire perl distributions. Perl itself doesn't use
3219 this to find its libraries -- the library directories are
3220 stored directly in Config.pm. Currently, there are only two
3221 styles: "lib" and "lib/perl5". The default library locations
3222 (e.g. privlib, sitelib) are either $prefix/lib or
3223 $prefix/lib/perl5. The former is useful if $prefix is a
3224 directory dedicated to perl (e.g. /opt/perl), while the latter
3225 is useful if $prefix is shared by many packages, e.g. if
3228 Unfortunately, while this "style" variable is used to set
3229 defaults for all three directory hierarchies (core, vendor, and
3230 site), there is no guarantee that the same style is actually
3231 appropriate for all those directories. For example, $prefix
3232 might be /opt/perl, but $siteprefix might be /usr/local.
3233 (Perhaps, in retrospect, the "lib" style should never have been
3234 supported, but it did seem like a nice idea at the time.)
3236 The situation is even less clear for tools such as MakeMaker
3237 that can be used to install additional modules into
3238 non-standard places. For example, if a user intends to install
3239 a module into a private directory (perhaps by setting PREFIX on
3240 the Makefile.PL command line), then there is no reason to
3241 assume that the Configure-time $installstyle setting will be
3242 relevant for that PREFIX.
3244 This may later be extended to include other information, so
3245 be careful with pattern-matching on the results.
3247 For compatibility with perl5.005 and earlier, the default
3248 setting is based on whether or not $prefix contains the string
3251 installusrbinperl (instubperl.U):
3252 This variable tells whether Perl should be installed also as
3253 /usr/bin/perl in addition to
3256 installvendorarch (vendorarch.U):
3257 This variable is really the same as vendorarchexp but may differ on
3258 those systems using AFS. For extra portability, only this variable
3259 should be used in makefiles.
3261 installvendorbin (vendorbin.U):
3262 This variable is really the same as vendorbinexp but may differ on
3263 those systems using AFS. For extra portability, only this variable
3264 should be used in makefiles.
3266 installvendorhtml1dir (vendorhtml1dir.U):
3267 This variable is really the same as vendorhtml1direxp but may differ on
3268 those systems using AFS. For extra portability, only this variable
3269 should be used in makefiles.
3271 installvendorhtml3dir (vendorhtml3dir.U):
3272 This variable is really the same as vendorhtml3direxp but may differ on
3273 those systems using AFS. For extra portability, only this variable
3274 should be used in makefiles.
3276 installvendorlib (vendorlib.U):
3277 This variable is really the same as vendorlibexp but may differ on
3278 those systems using AFS. For extra portability, only this variable
3279 should be used in makefiles.
3281 installvendorman1dir (vendorman1dir.U):
3282 This variable is really the same as vendorman1direxp but may differ on
3283 those systems using AFS. For extra portability, only this variable
3284 should be used in makefiles.
3286 installvendorman3dir (vendorman3dir.U):
3287 This variable is really the same as vendorman3direxp but may differ on
3288 those systems using AFS. For extra portability, only this variable
3289 should be used in makefiles.
3291 installvendorscript (vendorscript.U):
3292 This variable is really the same as vendorscriptexp but may differ on
3293 those systems using AFS. For extra portability, only this variable
3294 should be used in makefiles.
3296 intsize (intsize.U):
3297 This variable contains the value of the INTSIZE symbol, which
3298 indicates to the C program how many bytes there are in an int.
3300 issymlink (issymlink.U):
3301 This variable holds the test command to test for a symbolic link
3302 (if they are supported). Typical values include 'test -h' and
3305 ivdformat (perlxvf.U):
3306 This variable contains the format string used for printing
3307 a Perl IV as a signed decimal integer.
3310 This variable is the size of an IV in bytes.
3313 This variable contains the C type used for Perl's IV.
3315 known_extensions (Extensions.U):
3316 This variable holds a list of all XS extensions included in
3320 This variable is defined but not used by Configure.
3321 The value is a plain '' and is not useful.
3324 This variable indicates the program to be used to link
3325 libraries for dynamic loading. On some systems, it is 'ld'.
3326 On ELF systems, it should be $cc. Mostly, we'll try to respect
3327 the hint file setting.
3329 lddlflags (dlsrc.U):
3330 This variable contains any special flags that might need to be
3331 passed to $ld to create a shared library suitable for dynamic
3332 loading. It is up to the makefile to use it. For hpux, it
3333 should be '-b'. For sunos 4.1, it is empty.
3335 ldflags (ccflags.U):
3336 This variable contains any additional C loader flags desired by
3337 the user. It is up to the Makefile to use this.
3339 ldflags_uselargefiles (uselfs.U):
3340 This variable contains the loader flags needed by large file builds
3341 and added to ldflags by hints files.
3343 ldlibpthname (libperl.U):
3344 This variable holds the name of the shared library
3345 search path, often LD_LIBRARY_PATH. To get an empty
3346 string, the hints file must set this to 'none'.
3349 This variable is used internally by Configure to determine the
3350 full pathname (if any) of the less program. After Configure runs,
3351 the value is reset to a plain "less" and is not useful.
3354 This is an old synonym for _a.
3357 This variable contains the location of the C library.
3359 libperl (libperl.U):
3360 The perl executable is obtained by linking perlmain.c with
3361 libperl, any static extensions (usually just DynaLoader),
3362 and any other libraries needed on this system. libperl
3363 is usually libperl.a, but can also be libperl.so.xxx if
3364 the user wishes to build a perl executable with a shared
3368 This variable holds the general path (space-separated) used to find
3369 libraries. It is intended to be used by other units.
3372 This variable holds the additional libraries we want to use.
3373 It is up to the Makefile to deal with it. The list can be empty.
3376 This variable holds the directory names aka dirnames of the libraries
3377 we found and accepted, duplicates are removed.
3380 This variable holds the filenames aka basenames of the libraries
3381 we found and accepted.
3384 This variable holds the full pathnames of the libraries
3385 we found and accepted.
3388 This variable holds the directory names probed for libraries.
3390 libswanted (Myinit.U):
3391 This variable holds a list of all the libraries we want to
3392 search. The order is chosen to pick up the c library
3393 ahead of ucb or bsd libraries for SVR4.
3395 libswanted_uselargefiles (uselfs.U):
3396 This variable contains the libraries needed by large file builds
3397 and added to ldflags by hints files. It is a space separated list
3398 of the library names without the "lib" prefix or any suffix, just
3402 This variable is defined but not used by Configure.
3403 The value is a plain '' and is not useful.
3406 This variable is defined but not used by Configure.
3407 The value is a plain '' and is not useful.
3409 lkflags (ccflags.U):
3410 This variable contains any additional C partial linker flags desired by
3411 the user. It is up to the Makefile to use this.
3414 This variable is used internally by Configure to determine the
3415 full pathname (if any) of the ln program. After Configure runs,
3416 the value is reset to a plain "ln" and is not useful.
3419 This variable holds the name of the command to make
3420 symbolic links (if they are supported). It can be used
3421 in the Makefile. It is either 'ln -s' or 'ln'
3423 localtime_r_proto (d_localtime_r.U):
3424 This variable encodes the prototype of localtime_r.
3425 It is zero if d_localtime_r is undef, and one of the
3426 REENTRANT_PROTO_T_ABC macros of reentr.h if d_localtime_r
3429 locincpth (ccflags.U):
3430 This variable contains a list of additional directories to be
3431 searched by the compiler. The appropriate '-I' directives will
3432 be added to ccflags. This is intended to simplify setting
3433 local directories from the Configure command line.
3434 It's not much, but it parallels the loclibpth stuff in libpth.U.
3436 loclibpth (libpth.U):
3437 This variable holds the paths (space-separated) used to find local
3438 libraries. It is prepended to libpth, and is intended to be easily
3439 set from the command line.
3441 longdblsize (d_longdbl.U):
3442 This variable contains the value of the LONG_DOUBLESIZE symbol, which
3443 indicates to the C program how many bytes there are in a long double,
3444 if this system supports long doubles.
3446 longlongsize (d_longlong.U):
3447 This variable contains the value of the LONGLONGSIZE symbol, which
3448 indicates to the C program how many bytes there are in a long long,
3449 if this system supports long long.
3451 longsize (intsize.U):
3452 This variable contains the value of the LONGSIZE symbol, which
3453 indicates to the C program how many bytes there are in a long.
3456 This variable is defined but not used by Configure.
3457 The value is a plain '' and is not useful.
3460 This variable is defined but not used by Configure.
3461 The value is a plain '' and is not useful.
3464 This variable is used internally by Configure to determine the
3465 full pathname (if any) of the ls program. After Configure runs,
3466 the value is reset to a plain "ls" and is not useful.
3468 lseeksize (lseektype.U):
3469 This variable defines lseektype to be something like off_t, long,
3470 or whatever type is used to declare lseek offset's type in the
3471 kernel (which also appears to be lseek's return type).
3473 lseektype (lseektype.U):
3474 This variable defines lseektype to be something like off_t, long,
3475 or whatever type is used to declare lseek offset's type in the
3476 kernel (which also appears to be lseek's return type).
3479 This variable is defined but not used by Configure.
3480 The value is a plain '' and is not useful.
3483 This variable is defined but not used by Configure.
3484 The value is a plain '' and is not useful.
3487 This variable is used internally by Configure to determine the
3488 full pathname (if any) of the make program. After Configure runs,
3489 the value is reset to a plain "make" and is not useful.
3491 make_set_make (make.U):
3492 Some versions of 'make' set the variable MAKE. Others do not.
3493 This variable contains the string to be included in Makefile.SH
3494 so that MAKE is set if needed, and not if not needed.
3495 Possible values are:
3497 make_set_make='#' # If your make program handles this for you,
3499 make_set_make="MAKE=$make" # if it doesn't.
3501 This uses a comment character to distinguish a
3502 'set' value (from a previous config.sh or Configure '-D' option)
3503 from an uncomputed value.
3505 mallocobj (mallocsrc.U):
3506 This variable contains the name of the malloc.o that this package
3507 generates, if that malloc.o is preferred over the system malloc.
3508 Otherwise the value is null. This variable is intended for generating
3509 Makefiles. See mallocsrc.
3511 mallocsrc (mallocsrc.U):
3512 This variable contains the name of the malloc.c that comes with
3513 the package, if that malloc.c is preferred over the system malloc.
3514 Otherwise the value is null. This variable is intended for generating
3517 malloctype (mallocsrc.U):
3518 This variable contains the kind of ptr returned by malloc and realloc.
3520 man1dir (man1dir.U):
3521 This variable contains the name of the directory in which manual
3522 source pages are to be put. It is the responsibility of the
3523 Makefile.SH to get the value of this into the proper command.
3524 You must be prepared to do the ~name expansion yourself.
3526 man1direxp (man1dir.U):
3527 This variable is the same as the man1dir variable, but is filename
3528 expanded at configuration time, for convenient use in makefiles.
3530 man1ext (man1dir.U):
3531 This variable contains the extension that the manual page should
3532 have: one of 'n', 'l', or '1'. The Makefile must supply the '.'.
3535 man3dir (man3dir.U):
3536 This variable contains the name of the directory in which manual
3537 source pages are to be put. It is the responsibility of the
3538 Makefile.SH to get the value of this into the proper command.
3539 You must be prepared to do the ~name expansion yourself.
3541 man3direxp (man3dir.U):
3542 This variable is the same as the man3dir variable, but is filename
3543 expanded at configuration time, for convenient use in makefiles.
3545 man3ext (man3dir.U):
3546 This variable contains the extension that the manual page should
3547 have: one of 'n', 'l', or '3'. The Makefile must supply the '.'.
3551 This variable is used internally by Configure to determine the
3552 full pathname (if any) of the Mcc program. After Configure runs,
3553 the value is reset to a plain "Mcc" and is not useful.
3555 mips_type (usrinc.U):
3556 This variable holds the environment type for the mips system.
3557 Possible values are "BSD 4.3" and "System V".
3559 mistrustnm (Csym.U):
3560 This variable can be used to establish a fallthrough for the cases
3561 where nm fails to find a symbol. If usenm is false or usenm is true
3562 and mistrustnm is false, this variable has no effect. If usenm is true
3563 and mistrustnm is "compile", a test program will be compiled to try to
3564 find any symbol that can't be located via nm lookup. If mistrustnm is
3565 "run", the test program will be run as well as being compiled.
3568 This variable is used internally by Configure to determine the
3569 full pathname (if any) of the mkdir program. After Configure runs,
3570 the value is reset to a plain "mkdir" and is not useful.
3572 mmaptype (d_mmap.U):
3573 This symbol contains the type of pointer returned by mmap()
3574 (and simultaneously the type of the first argument).
3575 It can be 'void *' or 'caddr_t'.
3577 modetype (modetype.U):
3578 This variable defines modetype to be something like mode_t,
3579 int, unsigned short, or whatever type is used to declare file
3580 modes for system calls.
3583 This variable is used internally by Configure to determine the
3584 full pathname (if any) of the more program. After Configure runs,
3585 the value is reset to a plain "more" and is not useful.
3587 multiarch (multiarch.U):
3588 This variable conditionally defines the MULTIARCH symbol
3589 which signifies the presence of multiplatform files.
3590 This is normally set by hints files.
3593 This variable is defined but not used by Configure.
3594 The value is a plain '' and is not useful.
3596 myarchname (archname.U):
3597 This variable holds the architecture name computed by Configure in
3598 a previous run. It is not intended to be perused by any user and
3599 should never be set in a hint file.
3601 mydomain (myhostname.U):
3602 This variable contains the eventual value of the MYDOMAIN symbol,
3603 which is the domain of the host the program is going to run on.
3604 The domain must be appended to myhostname to form a complete host name.
3605 The dot comes with mydomain, and need not be supplied by the program.
3607 myhostname (myhostname.U):
3608 This variable contains the eventual value of the MYHOSTNAME symbol,
3609 which is the name of the host the program is going to run on.
3610 The domain is not kept with hostname, but must be gotten from mydomain.
3611 The dot comes with mydomain, and need not be supplied by the program.
3613 myuname (Oldconfig.U):
3614 The output of 'uname -a' if available, otherwise the hostname. On Xenix,
3615 pseudo variables assignments in the output are stripped, thank you. The
3616 whole thing is then lower-cased.
3619 This variable contains the '-n' flag if that is what causes the echo
3620 command to suppress newline. Otherwise it is null. Correct usage is
3621 $echo $n "prompt for a question: $c".
3623 need_va_copy (need_va_copy.U):
3624 This symbol, if defined, indicates that the system stores
3625 the variable argument list datatype, va_list, in a format
3626 that cannot be copied by simple assignment, so that some
3627 other means must be used when copying is required.
3628 As such systems vary in their provision (or non-provision)
3629 of copying mechanisms, handy.h defines a platform-
3630 independent macro, Perl_va_copy(src, dst), to do the job.
3632 netdb_hlen_type (netdbtype.U):
3633 This variable holds the type used for the 2nd argument to
3634 gethostbyaddr(). Usually, this is int or size_t or unsigned.
3635 This is only useful if you have gethostbyaddr(), naturally.
3637 netdb_host_type (netdbtype.U):
3638 This variable holds the type used for the 1st argument to
3639 gethostbyaddr(). Usually, this is char * or void *, possibly
3640 with or without a const prefix.
3641 This is only useful if you have gethostbyaddr(), naturally.
3643 netdb_name_type (netdbtype.U):
3644 This variable holds the type used for the argument to
3645 gethostbyname(). Usually, this is char * or const char *.
3646 This is only useful if you have gethostbyname(), naturally.
3648 netdb_net_type (netdbtype.U):
3649 This variable holds the type used for the 1st argument to
3650 getnetbyaddr(). Usually, this is int or long.
3651 This is only useful if you have getnetbyaddr(), naturally.
3654 This variable is used internally by Configure to determine the
3655 full pathname (if any) of the nm program. After Configure runs,
3656 the value is reset to a plain "nm" and is not useful.
3659 This variable holds the options that may be necessary for nm.
3661 nm_so_opt (usenm.U):
3662 This variable holds the options that may be necessary for nm
3663 to work on a shared library but that can not be used on an
3664 archive library. Currently, this is only used by Linux, where
3665 nm --dynamic is *required* to get symbols from an ELF library which
3666 has been stripped, but nm --dynamic is *fatal* on an archive library.
3667 Maybe Linux should just always set usenm=false.
3669 nonxs_ext (Extensions.U):
3670 This variable holds a list of all non-xs extensions included
3671 in the package. All of them will be built.
3674 This variable is used internally by Configure to determine the
3675 full pathname (if any) of the nroff program. After Configure runs,
3676 the value is reset to a plain "nroff" and is not useful.
3678 nv_preserves_uv_bits (perlxv.U):
3679 This variable indicates how many of bits type uvtype
3680 a variable nvtype can preserve.
3682 nveformat (perlxvf.U):
3683 This variable contains the format string used for printing
3684 a Perl NV using %e-ish floating point format.
3686 nvEUformat (perlxvf.U):
3687 This variable contains the format string used for printing
3688 a Perl NV using %E-ish floating point format.
3690 nvfformat (perlxvf.U):
3691 This variable confains the format string used for printing
3692 a Perl NV using %f-ish floating point format.
3694 nvFUformat (perlxvf.U):
3695 This variable confains the format string used for printing
3696 a Perl NV using %F-ish floating point format.
3698 nvgformat (perlxvf.U):
3699 This variable contains the format string used for printing
3700 a Perl NV using %g-ish floating point format.
3702 nvGUformat (perlxvf.U):
3703 This variable contains the format string used for printing
3704 a Perl NV using %G-ish floating point format.
3707 This variable is the size of an NV in bytes.
3710 This variable contains the C type used for Perl's NV.
3712 o_nonblock (nblock_io.U):
3713 This variable bears the symbol value to be used during open() or fcntl()
3714 to turn on non-blocking I/O for a file descriptor. If you wish to switch
3715 between blocking and non-blocking, you may try ioctl(FIOSNBIO) instead,
3716 but that is only supported by some devices.
3719 This is an old synonym for _o.
3721 old_pthread_create_joinable (d_pthrattrj.U):
3722 This variable defines the constant to use for creating joinable
3723 (aka undetached) pthreads. Unused if pthread.h defines
3724 PTHREAD_CREATE_JOINABLE. If used, possible values are
3725 PTHREAD_CREATE_UNDETACHED and __UNDETACHED.
3727 optimize (ccflags.U):
3728 This variable contains any optimizer/debugger flag that should be used.
3729 It is up to the Makefile to use it.
3731 orderlib (orderlib.U):
3732 This variable is "true" if the components of libraries must be ordered
3733 (with `lorder $* | tsort`) before placing them in an archive. Set to
3734 "false" if ranlib or ar can generate random libraries.
3736 osname (Oldconfig.U):
3737 This variable contains the operating system name (e.g. sunos,
3738 solaris, hpux, etc.). It can be useful later on for setting
3739 defaults. Any spaces are replaced with underscores. It is set
3740 to a null string if we can't figure it out.
3742 osvers (Oldconfig.U):
3743 This variable contains the operating system version (e.g.
3744 4.1.3, 5.2, etc.). It is primarily used for helping select
3745 an appropriate hints file, but might be useful elsewhere for
3746 setting defaults. It is set to '' if we can't figure it out.
3747 We try to be flexible about how much of the version number
3748 to keep, e.g. if 4.1.1, 4.1.2, and 4.1.3 are essentially the
3749 same for this package, hints files might just be os_4.0 or
3750 os_4.1, etc., not keeping separate files for each little release.
3752 otherlibdirs (otherlibdirs.U):
3753 This variable contains a colon-separated set of paths for the perl
3754 binary to search for additional library files or modules.
3755 These directories will be tacked to the end of @INC.
3756 Perl will automatically search below each path for version-
3757 and architecture-specific directories. See inc_version_list
3759 A value of ' ' means 'none' and is used to preserve this value
3760 for the next run through Configure.
3762 package (package.U):
3763 This variable contains the name of the package being constructed.
3764 It is primarily intended for the use of later Configure units.
3767 This variable contains the name of the preferred pager on the system.
3768 Usual values are (the full pathnames of) more, less, pg, or cat.
3771 This variable contains a command that produces the text of the
3772 /etc/passwd file. This is normally "cat /etc/passwd", but can be
3773 "ypcat passwd" when NIS is used.
3774 On some systems, such as os390, there may be no equivalent
3775 command, in which case this variable is unset.
3777 patchlevel (patchlevel.U):
3778 The patchlevel level of this package.
3779 The value of patchlevel comes from the patchlevel.h file.
3780 In a version number such as 5.6.1, this is the "6".
3781 In patchlevel.h, this is referred to as "PERL_VERSION".
3784 This is an old synonym for p_ in Head.U, the character
3785 used to separate elements in the command shell search PATH.
3788 This variable contains the full path (if any) to a previously
3789 installed perl5.005 or later suitable for running the script
3790 to determine inc_version_list.
3793 This variable is defined but not used by Configure.
3794 The value is a plain '' and is not useful.
3796 perl_patchlevel (patchlevel.U):
3797 This is the Perl patch level, a numeric change identifier,
3798 as defined by whichever source code maintenance system
3799 is used to maintain the patches; currently Perforce.
3800 It does not correlate with the Perl version numbers or
3801 the maintenance versus development dichotomy except
3802 by also being increasing.
3804 PERL_REVISION (Oldsyms.U):
3805 In a Perl version number such as 5.6.2, this is the 5.
3806 This value is manually set in patchlevel.h
3808 PERL_SUBVERSION (Oldsyms.U):
3809 In a Perl version number such as 5.6.2, this is the 2.
3810 Values greater than 50 represent potentially unstable
3811 development subversions.
3812 This value is manually set in patchlevel.h
3814 PERL_VERSION (Oldsyms.U):
3815 In a Perl version number such as 5.6.2, this is the 6.
3816 This value is manually set in patchlevel.h
3818 perladmin (perladmin.U):
3819 Electronic mail address of the perl5 administrator.
3822 The list of libraries needed by Perl only (any libraries needed
3823 by extensions only will by dropped, if using dynamic loading).
3825 perlpath (perlpath.U):
3826 This variable contains the eventual value of the PERLPATH symbol,
3827 which contains the name of the perl interpreter to be used in
3828 shell scripts and in the "eval 'exec'" idiom. This variable is
3829 not necessarily the pathname of the file containing the perl
3830 interpreter; you must append the executable extension (_exe) if
3831 it is not already present. Note that Perl code that runs during
3832 the Perl build process cannot reference this variable, as Perl
3833 may not have been installed, or even if installed, may be a
3834 different version of Perl.
3837 This variable is used internally by Configure to determine the
3838 full pathname (if any) of the pg program. After Configure runs,
3839 the value is reset to a plain "pg" and is not useful.
3841 phostname (myhostname.U):
3842 This variable contains the eventual value of the PHOSTNAME symbol,
3843 which is a command that can be fed to popen() to get the host name.
3844 The program should probably not presume that the domain is or isn't
3847 pidtype (pidtype.U):
3848 This variable defines PIDTYPE to be something like pid_t, int,
3849 ushort, or whatever type is used to declare process ids in the kernel.
3852 Holds the private path used by Configure to find out the libraries.
3853 Its value is prepend to libpth. This variable takes care of special
3854 machines, like the mips. Usually, it should be empty.
3857 This variable is defined but not used by Configure.
3858 The value is a plain '' and is not useful.
3861 This variable is defined but not used by Configure.
3862 The value is a plain '' and is not useful.
3865 This variable holds the name of the directory below which the
3866 user will install the package. Usually, this is /usr/local, and
3867 executables go in /usr/local/bin, library stuff in /usr/local/lib,
3868 man pages in /usr/local/man, etc. It is only used to set defaults
3869 for things in bin.U, mansrc.U, privlib.U, or scriptdir.U.
3871 prefixexp (prefix.U):
3872 This variable holds the full absolute path of the directory below
3873 which the user will install the package. Derived from prefix.
3875 privlib (privlib.U):
3876 This variable contains the eventual value of the PRIVLIB symbol,
3877 which is the name of the private library for this package. It may
3878 have a ~ on the front. It is up to the makefile to eventually create
3879 this directory while performing installation (with ~ substitution).
3881 privlibexp (privlib.U):
3882 This variable is the ~name expanded version of privlib, so that you
3883 may use it directly in Makefiles or shell scripts.
3885 procselfexe (d_procselfexe.U):
3886 If d_procselfexe is defined, $procselfexe is the filename
3887 of the symbolic link pointing to the absolute pathname of
3888 the executing program.
3890 prototype (prototype.U):
3891 This variable holds the eventual value of CAN_PROTOTYPE, which
3892 indicates the C compiler can handle funciton prototypes.
3894 ptrsize (ptrsize.U):
3895 This variable contains the value of the PTRSIZE symbol, which
3896 indicates to the C program how many bytes there are in a pointer.
3898 quadkind (quadtype.U):
3899 This variable, if defined, encodes the type of a quad:
3900 1 = int, 2 = long, 3 = long long, 4 = int64_t.
3902 quadtype (quadtype.U):
3903 This variable defines Quad_t to be something like long, int,
3904 long long, int64_t, or whatever type is used for 64-bit integers.
3906 randbits (randfunc.U):
3907 Indicates how many bits are produced by the function used to
3908 generate normalized random numbers.
3910 randfunc (randfunc.U):
3911 Indicates the name of the random number function to use.
3912 Values include drand48, random, and rand. In C programs,
3913 the 'Drand01' macro is defined to generate uniformly distributed
3914 random numbers over the range [0., 1.[ (see drand01 and nrand).
3916 random_r_proto (d_random_r.U):
3917 This variable encodes the prototype of random_r.
3918 It is zero if d_random_r is undef, and one of the
3919 REENTRANT_PROTO_T_ABC macros of reentr.h if d_random_r
3922 randseedtype (randfunc.U):
3923 Indicates the type of the argument of the seedfunc.
3925 ranlib (orderlib.U):
3926 This variable is set to the pathname of the ranlib program, if it is
3927 needed to generate random libraries. Set to ":" if ar can generate
3928 random libraries or if random libraries are not supported
3930 rd_nodata (nblock_io.U):
3931 This variable holds the return code from read() when no data is
3932 present. It should be -1, but some systems return 0 when O_NDELAY is
3933 used, which is a shame because you cannot make the difference between
3934 no data and an EOF.. Sigh!
3936 readdir64_r_proto (d_readdir64_r.U):
3937 This variable encodes the prototype of readdir64_r.
3938 It is zero if d_readdir64_r is undef, and one of the
3939 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir64_r
3942 readdir_r_proto (d_readdir_r.U):
3943 This variable encodes the prototype of readdir_r.
3944 It is zero if d_readdir_r is undef, and one of the
3945 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir_r
3948 revision (patchlevel.U):
3949 The value of revision comes from the patchlevel.h file.
3950 In a version number such as 5.6.1, this is the "5".
3951 In patchlevel.h, this is referred to as "PERL_REVISION".
3954 This variable is used internally by Configure to determine the
3955 full pathname (if any) of the rm program. After Configure runs,
3956 the value is reset to a plain "rm" and is not useful.
3959 This variable is defined but not used by Configure.
3960 The value is a plain '' and is not useful.
3963 This variable contains the command used by Configure
3964 to copy and execute a cross-compiled executable in the
3965 target host. Useful and available only during Perl build.
3966 Empty string '' if not cross-compiling.
3969 This variable contains 'true' or 'false' depending whether the
3970 nm extraction should be performed or not, according to the value
3971 of usenm and the flags on the Configure command line.
3973 sched_yield (d_pthread_y.U):
3974 This variable defines the way to yield the execution
3975 of the current thread.
3977 scriptdir (scriptdir.U):
3978 This variable holds the name of the directory in which the user wants
3979 to put publicly scripts for the package in question. It is either
3980 the same directory as for binaries, or a special one that can be
3981 mounted across different architectures, like /usr/share. Programs
3982 must be prepared to deal with ~name expansion.
3984 scriptdirexp (scriptdir.U):
3985 This variable is the same as scriptdir, but is filename expanded
3986 at configuration time, for programs not wanting to bother with it.
3989 This variable is used internally by Configure to determine the
3990 full pathname (if any) of the sed program. After Configure runs,
3991 the value is reset to a plain "sed" and is not useful.
3993 seedfunc (randfunc.U):
3994 Indicates the random number generating seed function.
3995 Values include srand48, srandom, and srand.
3997 selectminbits (selectminbits.U):
3998 This variable holds the minimum number of bits operated by select.
3999 That is, if you do select(n, ...), how many bits at least will be
4000 cleared in the masks if some activity is detected. Usually this
4001 is either n or 32*ceil(n/32), especially many little-endians do
4002 the latter. This is only useful if you have select(), naturally.
4004 selecttype (selecttype.U):
4005 This variable holds the type used for the 2nd, 3rd, and 4th
4006 arguments to select. Usually, this is 'fd_set *', if HAS_FD_SET
4007 is defined, and 'int *' otherwise. This is only useful if you
4008 have select(), naturally.
4011 This variable is defined but not used by Configure.
4012 The value is a plain '' and is not useful.
4014 setgrent_r_proto (d_setgrent_r.U):
4015 This variable encodes the prototype of setgrent_r.
4016 It is zero if d_setgrent_r is undef, and one of the
4017 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setgrent_r
4020 sethostent_r_proto (d_sethostent_r.U):
4021 This variable encodes the prototype of sethostent_r.
4022 It is zero if d_sethostent_r is undef, and one of the
4023 REENTRANT_PROTO_T_ABC macros of reentr.h if d_sethostent_r
4026 setlocale_r_proto (d_setlocale_r.U):
4027 This variable encodes the prototype of setlocale_r.
4028 It is zero if d_setlocale_r is undef, and one of the
4029 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setlocale_r
4032 setnetent_r_proto (d_setnetent_r.U):
4033 This variable encodes the prototype of setnetent_r.
4034 It is zero if d_setnetent_r is undef, and one of the
4035 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setnetent_r
4038 setprotoent_r_proto (d_setprotoent_r.U):
4039 This variable encodes the prototype of setprotoent_r.
4040 It is zero if d_setprotoent_r is undef, and one of the
4041 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setprotoent_r
4044 setpwent_r_proto (d_setpwent_r.U):
4045 This variable encodes the prototype of setpwent_r.
4046 It is zero if d_setpwent_r is undef, and one of the
4047 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setpwent_r
4050 setservent_r_proto (d_setservent_r.U):
4051 This variable encodes the prototype of setservent_r.
4052 It is zero if d_setservent_r is undef, and one of the
4053 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setservent_r
4057 This variable contains the full pathname of the shell used
4058 on this system to execute Bourne shell scripts. Usually, this will be
4059 /bin/sh, though it's possible that some systems will have /bin/ksh,
4060 /bin/pdksh, /bin/ash, /bin/bash, or even something such as
4062 This unit comes before Options.U, so you can't set sh with a '-D'
4063 option, though you can override this (and startsh)
4064 with '-O -Dsh=/bin/whatever -Dstartsh=whatever'
4067 This variable is defined but not used by Configure.
4068 The value is a plain '' and is not useful.
4070 sharpbang (spitshell.U):
4071 This variable contains the string #! if this system supports that
4074 shmattype (d_shmat.U):
4075 This symbol contains the type of pointer returned by shmat().
4076 It can be 'void *' or 'char *'.
4078 shortsize (intsize.U):
4079 This variable contains the value of the SHORTSIZE symbol which
4080 indicates to the C program how many bytes there are in a short.
4082 shrpenv (libperl.U):
4083 If the user builds a shared libperl.so, then we need to tell the
4084 'perl' executable where it will be able to find the installed libperl.so.
4085 One way to do this on some systems is to set the environment variable
4086 LD_RUN_PATH to the directory that will be the final location of the
4087 shared libperl.so. The makefile can use this with something like
4088 $shrpenv $(CC) -o perl perlmain.o $libperl $libs
4090 shrpenv="env LD_RUN_PATH=$archlibexp/CORE"
4093 See the main perl Makefile.SH for actual working usage.
4094 Alternatively, we might be able to use a command line option such
4095 as -R $archlibexp/CORE (Solaris) or -Wl,-rpath
4096 $archlibexp/CORE (Linux).
4098 shsharp (spitshell.U):
4099 This variable tells further Configure units whether your sh can
4102 sig_count (sig_name.U):
4103 This variable holds a number larger than the largest valid
4104 signal number. This is usually the same as the NSIG macro.
4106 sig_name (sig_name.U):
4107 This variable holds the signal names, space separated. The leading
4108 SIG in signal name is removed. A ZERO is prepended to the list.
4109 This is currently not used, sig_name_init is used instead.
4111 sig_name_init (sig_name.U):
4112 This variable holds the signal names, enclosed in double quotes and
4113 separated by commas, suitable for use in the SIG_NAME definition
4114 below. A "ZERO" is prepended to the list, and the list is
4115 terminated with a plain 0. The leading SIG in signal names
4116 is removed. See sig_num.
4118 sig_num (sig_name.U):
4119 This variable holds the signal numbers, space separated. A ZERO is
4120 prepended to the list (corresponding to the fake SIGZERO).
4121 Those numbers correspond to the value of the signal listed
4122 in the same place within the sig_name list.
4123 This is currently not used, sig_num_init is used instead.
4125 sig_num_init (sig_name.U):
4126 This variable holds the signal numbers, enclosed in double quotes and
4127 separated by commas, suitable for use in the SIG_NUM definition
4128 below. A "ZERO" is prepended to the list, and the list is
4129 terminated with a plain 0.
4131 sig_size (sig_name.U):
4132 This variable contains the number of elements of the sig_name
4135 signal_t (d_voidsig.U):
4136 This variable holds the type of the signal handler (void or int).
4138 sitearch (sitearch.U):
4139 This variable contains the eventual value of the SITEARCH symbol,
4140 which is the name of the private library for this package. It may
4141 have a ~ on the front. It is up to the makefile to eventually create
4142 this directory while performing installation (with ~ substitution).
4143 The standard distribution will put nothing in this directory.
4144 After perl has been installed, users may install their own local
4145 architecture-dependent modules in this directory with
4146 MakeMaker Makefile.PL
4147 or equivalent. See INSTALL for details.
4149 sitearchexp (sitearch.U):
4150 This variable is the ~name expanded version of sitearch, so that you
4151 may use it directly in Makefiles or shell scripts.
4153 sitebin (sitebin.U):
4154 This variable holds the name of the directory in which the user wants
4155 to put add-on publicly executable files for the package in question. It
4156 is most often a local directory such as /usr/local/bin. Programs using
4157 this variable must be prepared to deal with ~name substitution.
4158 The standard distribution will put nothing in this directory.
4159 After perl has been installed, users may install their own local
4160 executables in this directory with
4161 MakeMaker Makefile.PL
4162 or equivalent. See INSTALL for details.
4164 sitebinexp (sitebin.U):
4165 This is the same as the sitebin variable, but is filename expanded at
4166 configuration time, for use in your makefiles.
4168 sitehtml1dir (sitehtml1dir.U):
4169 This variable contains the name of the directory in which site-specific
4170 html source pages are to be put. It is the responsibility of the
4171 Makefile.SH to get the value of this into the proper command.
4172 You must be prepared to do the ~name expansion yourself.
4173 The standard distribution will put nothing in this directory.
4174 After perl has been installed, users may install their own local
4175 html pages in this directory with
4176 MakeMaker Makefile.PL
4177 or equivalent. See INSTALL for details.
4179 sitehtml1direxp (sitehtml1dir.U):
4180 This variable is the same as the sitehtml1dir variable, but is filename
4181 expanded at configuration time, for convenient use in makefiles.
4183 sitehtml3dir (sitehtml3dir.U):
4184 This variable contains the name of the directory in which site-specific
4185 library html source pages are to be put. It is the responsibility of the
4186 Makefile.SH to get the value of this into the proper command.
4187 You must be prepared to do the ~name expansion yourself.
4188 The standard distribution will put nothing in this directory.
4189 After perl has been installed, users may install their own local
4190 library html pages in this directory with
4191 MakeMaker Makefile.PL
4192 or equivalent. See INSTALL for details.
4194 sitehtml3direxp (sitehtml3dir.U):
4195 This variable is the same as the sitehtml3dir variable, but is filename
4196 expanded at configuration time, for convenient use in makefiles.
4198 sitelib (sitelib.U):
4199 This variable contains the eventual value of the SITELIB symbol,
4200 which is the name of the private library for this package. It may
4201 have a ~ on the front. It is up to the makefile to eventually create
4202 this directory while performing installation (with ~ substitution).
4203 The standard distribution will put nothing in this directory.
4204 After perl has been installed, users may install their own local
4205 architecture-independent modules in this directory with
4206 MakeMaker Makefile.PL
4207 or equivalent. See INSTALL for details.
4209 sitelib_stem (sitelib.U):
4210 This variable is $sitelibexp with any trailing version-specific component
4211 removed. The elements in inc_version_list (inc_version_list.U) can
4212 be tacked onto this variable to generate a list of directories to search.
4214 sitelibexp (sitelib.U):
4215 This variable is the ~name expanded version of sitelib, so that you
4216 may use it directly in Makefiles or shell scripts.
4218 siteman1dir (siteman1dir.U):
4219 This variable contains the name of the directory in which site-specific
4220 manual source pages are to be put. It is the responsibility of the
4221 Makefile.SH to get the value of this into the proper command.
4222 You must be prepared to do the ~name expansion yourself.
4223 The standard distribution will put nothing in this directory.
4224 After perl has been installed, users may install their own local
4225 man1 pages in this directory with
4226 MakeMaker Makefile.PL
4227 or equivalent. See INSTALL for details.
4229 siteman1direxp (siteman1dir.U):
4230 This variable is the same as the siteman1dir variable, but is filename
4231 expanded at configuration time, for convenient use in makefiles.
4233 siteman3dir (siteman3dir.U):
4234 This variable contains the name of the directory in which site-specific
4235 library man source pages are to be put. It is the responsibility of the
4236 Makefile.SH to get the value of this into the proper command.
4237 You must be prepared to do the ~name expansion yourself.
4238 The standard distribution will put nothing in this directory.
4239 After perl has been installed, users may install their own local
4240 man3 pages in this directory with
4241 MakeMaker Makefile.PL
4242 or equivalent. See INSTALL for details.
4244 siteman3direxp (siteman3dir.U):
4245 This variable is the same as the siteman3dir variable, but is filename
4246 expanded at configuration time, for convenient use in makefiles.
4248 siteprefix (siteprefix.U):
4249 This variable holds the full absolute path of the directory below
4250 which the user will install add-on packages.
4251 See INSTALL for usage and examples.
4253 siteprefixexp (siteprefix.U):
4254 This variable holds the full absolute path of the directory below
4255 which the user will install add-on packages. Derived from siteprefix.
4257 sitescript (sitescript.U):
4258 This variable holds the name of the directory in which the user wants
4259 to put add-on publicly executable files for the package in question. It
4260 is most often a local directory such as /usr/local/bin. Programs using
4261 this variable must be prepared to deal with ~name substitution.
4262 The standard distribution will put nothing in this directory.
4263 After perl has been installed, users may install their own local
4264 scripts in this directory with
4265 MakeMaker Makefile.PL
4266 or equivalent. See INSTALL for details.
4268 sitescriptexp (sitescript.U):
4269 This is the same as the sitescript variable, but is filename expanded at
4270 configuration time, for use in your makefiles.
4272 sizesize (sizesize.U):
4273 This variable contains the size of a sizetype in bytes.
4275 sizetype (sizetype.U):
4276 This variable defines sizetype to be something like size_t,
4277 unsigned long, or whatever type is used to declare length
4278 parameters for string functions.
4281 This variable is defined but not used by Configure.
4282 The value is a plain '' and is not useful.
4285 This variable is defined but not used by Configure.
4286 The value is a plain '' and is not useful.
4289 This variable holds the extension used to identify shared libraries
4290 (also known as shared objects) on the system. Usually set to 'so'.
4292 sockethdr (d_socket.U):
4293 This variable has any cpp '-I' flags needed for socket support.
4295 socketlib (d_socket.U):
4296 This variable has the names of any libraries needed for socket support.
4298 socksizetype (socksizetype.U):
4299 This variable holds the type used for the size argument
4300 for various socket calls like accept. Usual values include
4301 socklen_t, size_t, and int.
4304 This variable is used internally by Configure to determine the
4305 full pathname (if any) of the sort program. After Configure runs,
4306 the value is reset to a plain "sort" and is not useful.
4308 spackage (package.U):
4309 This variable contains the name of the package being constructed,
4310 with the first letter uppercased, i.e. suitable for starting
4313 spitshell (spitshell.U):
4314 This variable contains the command necessary to spit out a runnable
4315 shell on this system. It is either cat or a grep '-v' for # comments.
4317 sPRId64 (quadfio.U):
4318 This variable, if defined, contains the string used by stdio to
4319 format 64-bit decimal numbers (format 'd') for output.
4321 sPRIeldbl (longdblfio.U):
4322 This variable, if defined, contains the string used by stdio to
4323 format long doubles (format 'e') for output.
4325 sPRIEUldbl (longdblfio.U):
4326 This variable, if defined, contains the string used by stdio to
4327 format long doubles (format 'E') for output.
4328 The 'U' in the name is to separate this from sPRIeldbl so that even
4329 case-blind systems can see the difference.
4331 sPRIfldbl (longdblfio.U):
4332 This variable, if defined, contains the string used by stdio to
4333 format long doubles (format 'f') for output.
4335 sPRIFUldbl (longdblfio.U):
4336 This variable, if defined, contains the string used by stdio to
4337 format long doubles (format 'F') for output.
4338 The 'U' in the name is to separate this from sPRIfldbl so that even
4339 case-blind systems can see the difference.
4341 sPRIgldbl (longdblfio.U):
4342 This variable, if defined, contains the string used by stdio to
4343 format long doubles (format 'g') for output.
4345 sPRIGUldbl (longdblfio.U):
4346 This variable, if defined, contains the string used by stdio to
4347 format long doubles (format 'G') for output.
4348 The 'U' in the name is to separate this from sPRIgldbl so that even
4349 case-blind systems can see the difference.
4351 sPRIi64 (quadfio.U):
4352 This variable, if defined, contains the string used by stdio to
4353 format 64-bit decimal numbers (format 'i') for output.
4355 sPRIo64 (quadfio.U):
4356 This variable, if defined, contains the string used by stdio to
4357 format 64-bit octal numbers (format 'o') for output.
4359 sPRIu64 (quadfio.U):
4360 This variable, if defined, contains the string used by stdio to
4361 format 64-bit unsigned decimal numbers (format 'u') for output.
4363 sPRIx64 (quadfio.U):
4364 This variable, if defined, contains the string used by stdio to
4365 format 64-bit hexadecimal numbers (format 'x') for output.
4367 sPRIXU64 (quadfio.U):
4368 This variable, if defined, contains the string used by stdio to
4369 format 64-bit hExADECimAl numbers (format 'X') for output.
4370 The 'U' in the name is to separate this from sPRIx64 so that even
4371 case-blind systems can see the difference.
4373 srand48_r_proto (d_srand48_r.U):
4374 This variable encodes the prototype of srand48_r.
4375 It is zero if d_srand48_r is undef, and one of the
4376 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srand48_r
4379 srandom_r_proto (d_srandom_r.U):
4380 This variable encodes the prototype of srandom_r.
4381 It is zero if d_srandom_r is undef, and one of the
4382 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srandom_r
4386 This variable holds the path to the package source. It is up to
4387 the Makefile to use this variable and set VPATH accordingly to
4388 find the sources remotely.
4390 sSCNfldbl (longdblfio.U):
4391 This variable, if defined, contains the string used by stdio to
4392 format long doubles (format 'f') for input.
4394 ssizetype (ssizetype.U):
4395 This variable defines ssizetype to be something like ssize_t,
4396 long or int. It is used by functions that return a count
4397 of bytes or an error condition. It must be a signed type.
4398 We will pick a type such that sizeof(SSize_t) == sizeof(Size_t).
4400 startperl (startperl.U):
4401 This variable contains the string to put on the front of a perl
4402 script to make sure (hopefully) that it runs with perl and not some
4403 shell. Of course, that leading line must be followed by the classical
4405 eval 'exec perl -S $0 ${1+"$@"}'
4406 if $running_under_some_shell;
4407 to guarantee perl startup should the shell execute the script. Note
4408 that this magic incatation is not understood by csh.
4410 startsh (startsh.U):
4411 This variable contains the string to put on the front of a shell
4412 script to make sure (hopefully) that it runs with sh and not some
4415 static_ext (Extensions.U):
4416 This variable holds a list of XS extension files we want to
4417 link statically into the package. It is used by Makefile.
4419 stdchar (stdchar.U):
4420 This variable conditionally defines STDCHAR to be the type of char
4421 used in stdio.h. It has the values "unsigned char" or "char".
4423 stdio_base (d_stdstdio.U):
4424 This variable defines how, given a FILE pointer, fp, to access the
4425 _base field (or equivalent) of stdio.h's FILE structure. This will
4426 be used to define the macro FILE_base(fp).
4428 stdio_bufsiz (d_stdstdio.U):
4429 This variable defines how, given a FILE pointer, fp, to determine
4430 the number of bytes store in the I/O buffer pointer to by the
4431 _base field (or equivalent) of stdio.h's FILE structure. This will
4432 be used to define the macro FILE_bufsiz(fp).
4434 stdio_cnt (d_stdstdio.U):
4435 This variable defines how, given a FILE pointer, fp, to access the
4436 _cnt field (or equivalent) of stdio.h's FILE structure. This will
4437 be used to define the macro FILE_cnt(fp).
4439 stdio_filbuf (d_stdstdio.U):
4440 This variable defines how, given a FILE pointer, fp, to tell
4441 stdio to refill its internal buffers (?). This will
4442 be used to define the macro FILE_filbuf(fp).
4444 stdio_ptr (d_stdstdio.U):
4445 This variable defines how, given a FILE pointer, fp, to access the
4446 _ptr field (or equivalent) of stdio.h's FILE structure. This will
4447 be used to define the macro FILE_ptr(fp).
4449 stdio_stream_array (stdio_streams.U):
4450 This variable tells the name of the array holding the stdio streams.
4451 Usual values include _iob, __iob, and __sF.
4453 strerror_r_proto (d_strerror_r.U):
4454 This variable encodes the prototype of strerror_r.
4455 It is zero if d_strerror_r is undef, and one of the
4456 REENTRANT_PROTO_T_ABC macros of reentr.h if d_strerror_r
4459 strings (i_string.U):
4460 This variable holds the full path of the string header that will be
4461 used. Typically /usr/include/string.h or /usr/include/strings.h.
4464 This variable is defined but not used by Configure.
4465 The value is a plain '' and is not useful.
4467 subversion (patchlevel.U):
4468 The subversion level of this package.
4469 The value of subversion comes from the patchlevel.h file.
4470 In a version number such as 5.6.1, this is the "1".
4471 In patchlevel.h, this is referred to as "PERL_SUBVERSION".
4472 This is unique to perl.
4475 This variable holds the place where the manual is located on this
4476 system. It is not the place where the user wants to put his manual
4477 pages. Rather it is the place where Configure may look to find manual
4478 for unix commands (section 1 of the manual usually). See mansrc.
4481 This variable is defined but not used by Configure.
4482 The value is a plain '' and is not useful.
4485 This variable is defined but not used by Configure.
4486 The value is a plain '' and is not useful.
4488 targetarch (Cross.U):
4489 If cross-compiling, this variable contains the target architecture.
4490 If not, this will be empty.
4493 This variable is defined but not used by Configure.
4494 The value is a plain '' and is not useful.
4497 This variable is defined but not used by Configure.
4498 The value is a plain '' and is not useful.
4501 This variable is used internally by Configure to determine the
4502 full pathname (if any) of the test program. After Configure runs,
4503 the value is reset to a plain "test" and is not useful.
4505 timeincl (i_time.U):
4506 This variable holds the full path of the included time header(s).
4508 timetype (d_time.U):
4509 This variable holds the type returned by time(). It can be long,
4510 or time_t on BSD sites (in which case <sys/types.h> should be
4511 included). Anyway, the type Time_t should be used.
4513 tmpnam_r_proto (d_tmpnam_r.U):
4514 This variable encodes the prototype of tmpnam_r.
4515 It is zero if d_tmpnam_r is undef, and one of the
4516 REENTRANT_PROTO_T_ABC macros of reentr.h if d_tmpnam_r
4520 This variable contains the command used by Configure
4521 to copy to from the target host. Useful and available
4522 only during Perl build.
4523 The string ':' if not cross-compiling.
4526 This variable is used internally by Configure to determine the
4527 full pathname (if any) of the touch program. After Configure runs,
4528 the value is reset to a plain "touch" and is not useful.
4531 This variable is used internally by Configure to determine the
4532 full pathname (if any) of the tr program. After Configure runs,
4533 the value is reset to a plain "tr" and is not useful.
4536 This variable contains the value to be passed to the tr(1)
4537 command to transliterate a newline. Typical values are
4538 '\012' and '\n'. This is needed for EBCDIC systems where
4539 newline is not necessarily '\012'.
4542 This variable is defined but not used by Configure.
4543 The value is a plain '' and is not useful.
4545 ttyname_r_proto (d_ttyname_r.U):
4546 This variable encodes the prototype of ttyname_r.
4547 It is zero if d_ttyname_r is undef, and one of the
4548 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ttyname_r
4552 This variable is the size of an U16 in bytes.
4555 This variable contains the C type used for Perl's U16.
4558 This variable is the size of an U32 in bytes.
4561 This variable contains the C type used for Perl's U32.
4564 This variable is the size of an U64 in bytes.
4567 This variable contains the C type used for Perl's U64.
4570 This variable is the size of an U8 in bytes.
4573 This variable contains the C type used for Perl's U8.
4576 This variable contains the format string used for printing a Uid_t.
4578 uidsign (uidsign.U):
4579 This variable contains the signedness of a uidtype.
4580 1 for unsigned, -1 for signed.
4582 uidsize (uidsize.U):
4583 This variable contains the size of a uidtype in bytes.
4585 uidtype (uidtype.U):
4586 This variable defines Uid_t to be something like uid_t, int,
4587 ushort, or whatever type is used to declare user ids in the kernel.
4590 This variable is used internally by Configure to determine the
4591 full pathname (if any) of the uname program. After Configure runs,
4592 the value is reset to a plain "uname" and is not useful.
4595 This variable is used internally by Configure to determine the
4596 full pathname (if any) of the uniq program. After Configure runs,
4597 the value is reset to a plain "uniq" and is not useful.
4599 uquadtype (quadtype.U):
4600 This variable defines Uquad_t to be something like unsigned long,
4601 unsigned int, unsigned long long, uint64_t, or whatever type is
4602 used for 64-bit integers.
4604 use5005threads (usethreads.U):
4605 This variable conditionally defines the USE_5005THREADS symbol,
4606 and indicates that Perl should be built to use the 5.005-based
4607 threading implementation.
4609 use64bitall (use64bits.U):
4610 This variable conditionally defines the USE_64_BIT_ALL symbol,
4611 and indicates that 64-bit integer types should be used
4612 when available. The maximal possible
4613 64-bitness is employed: LP64 or ILP64, meaning that you will
4614 be able to use more than 2 gigabytes of memory. This mode is
4615 even more binary incompatible than USE_64_BIT_INT. You may not
4616 be able to run the resulting executable in a 32-bit CPU at all or
4617 you may need at least to reboot your OS to 64-bit mode.
4619 use64bitint (use64bits.U):
4620 This variable conditionally defines the USE_64_BIT_INT symbol,
4621 and indicates that 64-bit integer types should be used
4622 when available. The minimal possible 64-bitness
4623 is employed, just enough to get 64-bit integers into Perl.
4624 This may mean using for example "long longs", while your memory
4625 may still be limited to 2 gigabytes.
4627 usecrosscompile (Cross.U):
4628 This variable conditionally defines the USE_CROSS_COMPILE symbol,
4629 and indicates that Perl has been cross-compiled.
4632 This variable indicates if the system supports dynamic
4633 loading of some sort. See also dlsrc and dlobj.
4635 usefaststdio (usefaststdio.U):
4636 This variable conditionally defines the USE_FAST_STDIO symbol,
4637 and indicates that Perl should be built to use 'fast stdio'.
4638 Defaults to define in Perls 5.8 and earlier, to undef later.
4640 useithreads (usethreads.U):
4641 This variable conditionally defines the USE_ITHREADS symbol,
4642 and indicates that Perl should be built to use the interpreter-based
4643 threading implementation.
4645 uselargefiles (uselfs.U):
4646 This variable conditionally defines the USE_LARGE_FILES symbol,
4647 and indicates that large file interfaces should be used when
4650 uselongdouble (uselongdbl.U):
4651 This variable conditionally defines the USE_LONG_DOUBLE symbol,
4652 and indicates that long doubles should be used when available.
4654 usemallocwrap (mallocsrc.U):
4655 This variable contains y if we are wrapping malloc to prevent
4656 integer overflow during size calculations.
4658 usemorebits (usemorebits.U):
4659 This variable conditionally defines the USE_MORE_BITS symbol,
4660 and indicates that explicit 64-bit interfaces and long doubles
4661 should be used when available.
4663 usemultiplicity (usemultiplicity.U):
4664 This variable conditionally defines the MULTIPLICITY symbol,
4665 and indicates that Perl should be built to use multiplicity.
4667 usemymalloc (mallocsrc.U):
4668 This variable contains y if the malloc that comes with this package
4669 is desired over the system's version of malloc. People often include
4670 special versions of malloc for effiency, but such versions are often
4671 less portable. See also mallocsrc and mallocobj.
4672 If this is 'y', then -lmalloc is removed from $libs.
4675 This variable contains 'true' or 'false' depending whether the
4676 nm extraction is wanted or not.
4678 useopcode (Extensions.U):
4679 This variable holds either 'true' or 'false' to indicate
4680 whether the Opcode extension should be used. The sole
4681 use for this currently is to allow an easy mechanism
4682 for users to skip the Opcode extension from the Configure
4685 useperlio (useperlio.U):
4686 This variable conditionally defines the USE_PERLIO symbol,
4687 and indicates that the PerlIO abstraction should be
4690 useposix (Extensions.U):
4691 This variable holds either 'true' or 'false' to indicate
4692 whether the POSIX extension should be used. The sole
4693 use for this currently is to allow an easy mechanism
4694 for hints files to indicate that POSIX will not compile
4695 on a particular system.
4697 usereentrant (usethreads.U):
4698 This variable conditionally defines the USE_REENTRANT_API symbol,
4699 which indicates that the thread code may try to use the various
4700 _r versions of library functions. This is only potentially
4701 meaningful if usethreads is set and is very experimental, it is
4702 not even prompted for.
4704 userelocatableinc (XXX.U):
4705 This variable is set to true to indicate that perl should relocate
4706 @INC entries at runtime based on the path to the perl binary.
4707 Any @INC paths starting ".../" are relocated relative to the directory
4708 containing the perl binary, and a logical cleanup of the path is then
4709 made around the join point (removing "dir/../" pairs)
4712 This variable is set to true when the user agrees to use sfio.
4713 It is set to false when sfio is not available or when the user
4714 explicitely requests not to use sfio. It is here primarily so
4715 that command-line settings can override the auto-detection of
4716 d_sfio without running into a "WHOA THERE".
4718 useshrplib (libperl.U):
4719 This variable is set to 'true' if the user wishes
4720 to build a shared libperl, and 'false' otherwise.
4722 usesocks (usesocks.U):
4723 This variable conditionally defines the USE_SOCKS symbol,
4724 and indicates that Perl should be built to use SOCKS.
4726 usethreads (usethreads.U):
4727 This variable conditionally defines the USE_THREADS symbol,
4728 and indicates that Perl should be built to use threads.
4730 usevendorprefix (vendorprefix.U):
4731 This variable tells whether the vendorprefix
4732 and consequently other vendor* paths are in use.
4734 usevfork (d_vfork.U):
4735 This variable is set to true when the user accepts to use vfork.
4736 It is set to false when no vfork is available or when the user
4737 explicitely requests not to use vfork.
4740 This variable holds the path of the include files, which is
4741 usually /usr/include. It is mainly used by other Configure units.
4744 This variable is defined but not used by Configure.
4745 The value is a plain '' and is not useful.
4747 uvoformat (perlxvf.U):
4748 This variable contains the format string used for printing
4749 a Perl UV as an unsigned octal integer.
4752 This variable is the size of a UV in bytes.
4755 This variable contains the C type used for Perl's UV.
4757 uvuformat (perlxvf.U):
4758 This variable contains the format string used for printing
4759 a Perl UV as an unsigned decimal integer.
4761 uvxformat (perlxvf.U):
4762 This variable contains the format string used for printing
4763 a Perl UV as an unsigned hexadecimal integer in lowercase abcdef.
4765 uvXUformat (perlxvf.U):
4766 This variable contains the format string used for printing
4767 a Perl UV as an unsigned hexadecimal integer in uppercase ABCDEF.
4769 vendorarch (vendorarch.U):
4770 This variable contains the value of the PERL_VENDORARCH symbol.
4771 It may have a ~ on the front.
4772 The standard distribution will put nothing in this directory.
4773 Vendors who distribute perl may wish to place their own
4774 architecture-dependent modules and extensions in this directory with
4775 MakeMaker Makefile.PL INSTALLDIRS=vendor
4776 or equivalent. See INSTALL for details.
4778 vendorarchexp (vendorarch.U):
4779 This variable is the ~name expanded version of vendorarch, so that you
4780 may use it directly in Makefiles or shell scripts.
4782 vendorbin (vendorbin.U):
4783 This variable contains the eventual value of the VENDORBIN symbol.
4784 It may have a ~ on the front.
4785 The standard distribution will put nothing in this directory.
4786 Vendors who distribute perl may wish to place additional
4787 binaries in this directory with
4788 MakeMaker Makefile.PL INSTALLDIRS=vendor
4789 or equivalent. See INSTALL for details.
4791 vendorbinexp (vendorbin.U):
4792 This variable is the ~name expanded version of vendorbin, so that you
4793 may use it directly in Makefiles or shell scripts.
4795 vendorhtml1dir (vendorhtml1dir.U):
4796 This variable contains the name of the directory for html
4797 pages. It may have a ~ on the front.
4798 The standard distribution will put nothing in this directory.
4799 Vendors who distribute perl may wish to place their own
4800 html pages in this directory with
4801 MakeMaker Makefile.PL INSTALLDIRS=vendor
4802 or equivalent. See INSTALL for details.
4804 vendorhtml1direxp (vendorhtml1dir.U):
4805 This variable is the ~name expanded version of vendorhtml1dir, so that you
4806 may use it directly in Makefiles or shell scripts.
4808 vendorhtml3dir (vendorhtml3dir.U):
4809 This variable contains the name of the directory for html
4810 library pages. It may have a ~ on the front.
4811 The standard distribution will put nothing in this directory.
4812 Vendors who distribute perl may wish to place their own
4813 html pages for modules and extensions in this directory with
4814 MakeMaker Makefile.PL INSTALLDIRS=vendor
4815 or equivalent. See INSTALL for details.
4817 vendorhtml3direxp (vendorhtml3dir.U):
4818 This variable is the ~name expanded version of vendorhtml3dir, so that you
4819 may use it directly in Makefiles or shell scripts.
4821 vendorlib (vendorlib.U):
4822 This variable contains the eventual value of the VENDORLIB symbol,
4823 which is the name of the private library for this package.
4824 The standard distribution will put nothing in this directory.
4825 Vendors who distribute perl may wish to place their own
4826 modules in this directory with
4827 MakeMaker Makefile.PL INSTALLDIRS=vendor
4828 or equivalent. See INSTALL for details.
4830 vendorlib_stem (vendorlib.U):
4831 This variable is $vendorlibexp with any trailing version-specific component
4832 removed. The elements in inc_version_list (inc_version_list.U) can
4833 be tacked onto this variable to generate a list of directories to search.
4835 vendorlibexp (vendorlib.U):
4836 This variable is the ~name expanded version of vendorlib, so that you
4837 may use it directly in Makefiles or shell scripts.
4839 vendorman1dir (vendorman1dir.U):
4840 This variable contains the name of the directory for man1
4841 pages. It may have a ~ on the front.
4842 The standard distribution will put nothing in this directory.
4843 Vendors who distribute perl may wish to place their own
4844 man1 pages in this directory with
4845 MakeMaker Makefile.PL INSTALLDIRS=vendor
4846 or equivalent. See INSTALL for details.
4848 vendorman1direxp (vendorman1dir.U):
4849 This variable is the ~name expanded version of vendorman1dir, so that you
4850 may use it directly in Makefiles or shell scripts.
4852 vendorman3dir (vendorman3dir.U):
4853 This variable contains the name of the directory for man3
4854 pages. It may have a ~ on the front.
4855 The standard distribution will put nothing in this directory.
4856 Vendors who distribute perl may wish to place their own
4857 man3 pages in this directory with
4858 MakeMaker Makefile.PL INSTALLDIRS=vendor
4859 or equivalent. See INSTALL for details.
4861 vendorman3direxp (vendorman3dir.U):
4862 This variable is the ~name expanded version of vendorman3dir, so that you
4863 may use it directly in Makefiles or shell scripts.
4865 vendorprefix (vendorprefix.U):
4866 This variable holds the full absolute path of the directory below
4867 which the vendor will install add-on packages.
4868 See INSTALL for usage and examples.
4870 vendorprefixexp (vendorprefix.U):
4871 This variable holds the full absolute path of the directory below
4872 which the vendor will install add-on packages. Derived from vendorprefix.
4874 vendorscript (vendorscript.U):
4875 This variable contains the eventual value of the VENDORSCRIPT symbol.
4876 It may have a ~ on the front.
4877 The standard distribution will put nothing in this directory.
4878 Vendors who distribute perl may wish to place additional
4879 executable scripts in this directory with
4880 MakeMaker Makefile.PL INSTALLDIRS=vendor
4881 or equivalent. See INSTALL for details.
4883 vendorscriptexp (vendorscript.U):
4884 This variable is the ~name expanded version of vendorscript, so that you
4885 may use it directly in Makefiles or shell scripts.
4887 version (patchlevel.U):
4888 The full version number of this package, such as 5.6.1 (or 5_6_1).
4889 This combines revision, patchlevel, and subversion to get the
4890 full version number, including any possible subversions.
4891 This is suitable for use as a directory name, and hence is
4892 filesystem dependent.
4894 version_patchlevel_string (patchlevel.U):
4895 This is a string combining version, subversion and
4896 perl_patchlevel (if perl_patchlevel is non-zero).
4897 It is typically something like
4898 'version 7 subversion 1' or
4899 'version 7 subversion 1 patchlevel 11224'
4900 It is computed here to avoid duplication of code in myconfig.SH
4903 versiononly (versiononly.U):
4904 If set, this symbol indicates that only the version-specific
4905 components of a perl installation should be installed.
4906 This may be useful for making a test installation of a new
4907 version without disturbing the existing installation.
4908 Setting versiononly is equivalent to setting installperl's -v option.
4909 In particular, the non-versioned scripts and programs such as
4910 a2p, c2ph, h2xs, pod2*, and perldoc are not installed
4911 (see INSTALL for a more complete list). Nor are the man
4913 Usually, this is undef.
4916 This variable is defined but not used by Configure.
4917 The value is a plain '' and is not useful.
4919 voidflags (voidflags.U):
4920 This variable contains the eventual value of the VOIDFLAGS symbol,
4921 which indicates how much support of the void type is given by this
4922 compiler. See VOIDFLAGS for more info.
4925 This variable holds extra path (space-separated) used to find
4926 libraries on this platform, for example CPU-specific libraries
4927 (on multi-CPU platforms) may be listed here.
4930 This variable holds the name of the compiler compiler we
4931 want to use in the Makefile. It can be yacc, byacc, or bison -y.
4934 This variable contains any additional yacc flags desired by the
4935 user. It is up to the Makefile to use this.
4938 This variable is defined but not used by Configure.
4939 The value is a plain '' and is not useful.
4942 This variable is used internally by Configure to determine the
4943 full pathname (if any) of the zip program. After Configure runs,
4944 the value is reset to a plain "zip" and is not useful.