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,
60 perl.c:incpush() and lib/lib.pm will automatically search in
61 $sitelib/.. for older directories back to the limit specified
62 by these api_ variables. This is only useful if you have a
63 perl library directory tree structured like the default one.
64 See INSTALL for how this works. The versioned site_perl
65 directory was introduced in 5.005, so that is the lowest
66 possible value. The version list appropriate for the current
67 system is determined in inc_version_list.U.
68 XXX To do: Since compatibility can depend on compile time
69 options (such as bincompat, longlong, etc.) it should
70 (perhaps) be set by Configure, but currently it isn't.
71 Currently, we read a hard-wired value from patchlevel.h.
72 Perhaps what we ought to do is take the hard-wired value from
73 patchlevel.h but then modify it if the current Configure
74 options warrant. patchlevel.h then would use an #ifdef guard.
76 api_subversion (patchlevel.U):
77 The three variables, api_revision, api_version, and
78 api_subversion, specify the version of the oldest perl binary
79 compatible with the present perl. In a full version string
80 such as '5.6.1', api_subversion is the '1'. See api_revision for
83 api_version (patchlevel.U):
84 The three variables, api_revision, api_version, and
85 api_subversion, specify the version of the oldest perl binary
86 compatible with the present perl. In a full version string
87 such as '5.6.1', api_version is the '6'. See api_revision for
88 full details. As a special case, 5.5.0 is rendered in the
89 old-style as 5.005. (In the 5.005_0x maintenance series,
90 this was the only versioned directory in $sitelib.)
92 api_versionstring (patchlevel.U):
93 This variable combines api_revision, api_version, and
94 api_subversion in a format such as 5.6.1 (or 5_6_1) suitable
95 for use as a directory name. This is filesystem dependent.
98 This variable is used internally by Configure to determine the
99 full pathname (if any) of the ar program. After Configure runs,
100 the value is reset to a plain "ar" and is not useful.
103 This variable holds the name of the directory in which the user wants
104 to put architecture-dependent public library files for $package.
105 It is most often a local directory such as /usr/local/lib.
106 Programs using this variable must be prepared to deal
107 with filename expansion.
109 archlibexp (archlib.U):
110 This variable is the same as the archlib variable, but is
111 filename expanded at configuration time, for convenient use.
113 archname64 (use64bits.U):
114 This variable is used for the 64-bitness part of $archname.
116 archname (archname.U):
117 This variable is a short name to characterize the current
118 architecture. It is used mainly to construct the default archlib.
121 This variable defines any additional objects that must be linked
122 in with the program on this architecture. On unix, it is usually
123 empty. It is typically used to include emulations of unix calls
124 or other facilities. For perl on OS/2, for example, this would
127 asctime_r_proto (d_asctime_r.U):
128 This variable encodes the prototype of asctime_r.
129 It is zero if d_asctime_r is undef, and one of the
130 REENTRANT_PROTO_T_ABC macros of reentr.h if d_asctime_r
134 This variable is used internally by Configure to determine the
135 full pathname (if any) of the awk program. After Configure runs,
136 the value is reset to a plain "awk" and is not useful.
139 The base revision level of this package, from the .package file.
142 This variable is defined but not used by Configure.
143 The value is a plain '' and is not useful.
146 This variable holds the name of the directory in which the user wants
147 to put publicly executable images for the package in question. It
148 is most often a local directory such as /usr/local/bin. Programs using
149 this variable must be prepared to deal with ~name substitution.
152 This is the same as the bin variable, but is filename expanded at
153 configuration time, for use in your makefiles.
156 This variable is used internally by Configure to determine the
157 full pathname (if any) of the bison program. After Configure runs,
158 the value is reset to a plain "bison" and is not useful.
161 This variable is used internally by Configure to determine the
162 full pathname (if any) of the byacc program. After Configure runs,
163 the value is reset to a plain "byacc" and is not useful.
165 byteorder (byteorder.U):
166 This variable holds the byte order in a UV. In the following,
167 larger digits indicate more significance. The variable byteorder
168 is either 4321 on a big-endian machine, or 1234 on a little-endian,
169 or 87654321 on a Cray ... or 3412 with weird order !
172 This variable contains the \c string if that is what causes the echo
173 command to suppress newline. Otherwise it is null. Correct usage is
174 $echo $n "prompt for a question: $c".
176 castflags (d_castneg.U):
177 This variable contains a flag that precise difficulties the
178 compiler has casting odd floating values to unsigned long:
180 1 = couldn't cast < 0
181 2 = couldn't cast >= 0x80000000
182 4 = couldn't cast in argument expression list
185 This variable is used internally by Configure to determine the
186 full pathname (if any) of the cat program. After Configure runs,
187 the value is reset to a plain "cat" and is not useful.
190 This variable holds the name of a command to execute a C compiler which
191 can resolve multiple global references that happen to have the same
192 name. Usual values are 'cc' and 'gcc'.
193 Fervent ANSI compilers may be called 'c89'. AIX has xlc.
195 cccdlflags (dlsrc.U):
196 This variable contains any special flags that might need to be
197 passed with 'cc -c' to compile modules to be used to create a shared
198 library that will be used for dynamic loading. For hpux, this
199 should be +z. It is up to the makefile to use it.
202 This variable contains any special flags that might need to be
203 passed to cc to link with a shared library for dynamic loading.
204 It is up to the makefile to use it. For sunos 4.1, it should
208 This variable contains any additional C compiler flags desired by
209 the user. It is up to the Makefile to use this.
211 ccflags_uselargefiles (uselfs.U):
212 This variable contains the compiler flags needed by large file builds
213 and added to ccflags by hints files.
216 This can set either by hints files or by Configure. If using
217 gcc, this is gcc, and if not, usually equal to cc, unimpressive, no?
218 Some platforms, however, make good use of this by storing the
219 flavor of the C compiler being used here. For example if using
220 the Sun WorkShop suite, ccname will be 'workshop'.
222 ccsymbols (Cppsym.U):
223 The variable contains the symbols defined by the C compiler alone.
224 The symbols defined by cpp or by cc when it calls cpp are not in
225 this list, see cppsymbols and cppccsymbols.
226 The list is a space-separated list of symbol=value tokens.
228 ccversion (Checkcc.U):
229 This can set either by hints files or by Configure. If using
230 a (non-gcc) vendor cc, this variable may contain a version for
234 Login name of the person who ran the Configure script and answered the
235 questions. This is used to tag both config.sh and config_h.SH.
237 cf_email (cf_email.U):
238 Electronic mail address of the person who ran Configure. This can be
239 used by units that require the user's e-mail, like MailList.U.
242 Holds the output of the "date" command when the configuration file was
243 produced. This is used to tag both config.sh and config_h.SH.
245 charsize (charsize.U):
246 This variable contains the value of the CHARSIZE symbol, which
247 indicates to the C program how many bytes there are in a character.
250 This variable is defined but not used by Configure.
251 The value is a plain '' and is not useful.
254 This variable is used internally by Configure to determine the
255 full pathname (if any) of the chmod program. After Configure runs,
256 the value is reset to a plain "chmod" and is not useful.
259 This variable is defined but not used by Configure.
260 The value is a plain '' and is not useful.
262 clocktype (d_times.U):
263 This variable holds the type returned by times(). It can be long,
264 or clock_t on BSD sites (in which case <sys/types.h> should be
268 This variable is used internally by Configure to determine the
269 full pathname (if any) of the comm program. After Configure runs,
270 the value is reset to a plain "comm" and is not useful.
273 This variable is defined but not used by Configure.
274 The value is a plain '' and is not useful.
276 contains (contains.U):
277 This variable holds the command to do a grep with a proper return
278 status. On most sane systems it is simply "grep". On insane systems
279 it is a grep followed by a cat followed by a test. This variable
280 is primarily for the use of other Configure units.
283 This variable is used internally by Configure to determine the
284 full pathname (if any) of the cp program. After Configure runs,
285 the value is reset to a plain "cp" and is not useful.
288 This variable is defined but not used by Configure.
289 The value is a plain '' and is not useful.
292 This variable is used internally by Configure to determine the
293 full pathname (if any) of the cpp program. After Configure runs,
294 the value is reset to a plain "cpp" and is not useful.
296 cpp_stuff (cpp_stuff.U):
297 This variable contains an identification of the catenation mechanism
298 used by the C preprocessor.
300 cppccsymbols (Cppsym.U):
301 The variable contains the symbols defined by the C compiler
302 when it calls cpp. The symbols defined by the cc alone or cpp
303 alone are not in this list, see ccsymbols and cppsymbols.
304 The list is a space-separated list of symbol=value tokens.
306 cppflags (ccflags.U):
307 This variable holds the flags that will be passed to the C pre-
308 processor. It is up to the Makefile to use it.
310 cpplast (cppstdin.U):
311 This variable has the same functionality as cppminus, only it applies
312 to cpprun and not cppstdin.
314 cppminus (cppstdin.U):
315 This variable contains the second part of the string which will invoke
316 the C preprocessor on the standard input and produce to standard
317 output. This variable will have the value "-" if cppstdin needs
318 a minus to specify standard input, otherwise the value is "".
321 This variable contains the command which will invoke a C preprocessor
322 on standard input and put the output to stdout. It is guaranteed not
323 to be a wrapper and may be a null string if no preprocessor can be
324 made directly available. This preprocessor might be different from the
325 one used by the C compiler. Don't forget to append cpplast after the
326 preprocessor options.
328 cppstdin (cppstdin.U):
329 This variable contains the command which will invoke the C
330 preprocessor on standard input and put the output to stdout.
331 It is primarily used by other Configure units that ask about
332 preprocessor symbols.
334 cppsymbols (Cppsym.U):
335 The variable contains the symbols defined by the C preprocessor
336 alone. The symbols defined by cc or by cc when it calls cpp are
337 not in this list, see ccsymbols and cppccsymbols.
338 The list is a space-separated list of symbol=value tokens.
340 crypt_r_proto (d_crypt_r.U):
341 This variable encodes the prototype of crypt_r.
342 It is zero if d_crypt_r is undef, and one of the
343 REENTRANT_PROTO_T_ABC macros of reentr.h if d_crypt_r
346 cryptlib (d_crypt.U):
347 This variable holds -lcrypt or the path to a libcrypt.a archive if
348 the crypt() function is not defined in the standard C library. It is
349 up to the Makefile to use this.
352 This variable is used internally by Configure to determine the
353 full pathname (if any) of the csh program. After Configure runs,
354 the value is reset to a plain "csh" and is not useful.
356 ctermid_r_proto (d_ctermid_r.U):
357 This variable encodes the prototype of ctermid_r.
358 It is zero if d_ctermid_r is undef, and one of the
359 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ctermid_r
362 ctime_r_proto (d_ctime_r.U):
363 This variable encodes the prototype of ctime_r.
364 It is zero if d_ctime_r is undef, and one of the
365 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ctime_r
368 d__fwalk (d__fwalk.U):
369 This variable conditionally defines HAS__FWALK if _fwalk() is
370 available to apply a function to all the file handles.
372 d_access (d_access.U):
373 This variable conditionally defines HAS_ACCESS if the access() system
374 call is available to check for access permissions using real IDs.
376 d_accessx (d_accessx.U):
377 This variable conditionally defines the HAS_ACCESSX symbol, which
378 indicates to the C program that the accessx() routine is available.
381 This variable conditionally defines the HAS_ALARM symbol, which
382 indicates to the C program that the alarm() routine is available.
384 d_archlib (archlib.U):
385 This variable conditionally defines ARCHLIB to hold the pathname
386 of architecture-dependent library files for $package. If
387 $archlib is the same as $privlib, then this is set to undef.
389 d_asctime_r (d_asctime_r.U):
390 This variable conditionally defines the HAS_ASCTIME_R symbol,
391 which indicates to the C program that the asctime_r()
392 routine is available.
395 This variable conditionally defines the HAS_ATOLF symbol, which
396 indicates to the C program that the atolf() routine is available.
399 This variable conditionally defines the HAS_ATOLL symbol, which
400 indicates to the C program that the atoll() routine is available.
402 d_attribut (d_attribut.U):
403 This variable conditionally defines HASATTRIBUTE, which
404 indicates the C compiler can check for function attributes,
405 such as printf formats.
408 This variable conditionally defines the HAS_BCMP symbol if
409 the bcmp() routine is available to compare strings.
412 This variable conditionally defines the HAS_BCOPY symbol if
413 the bcopy() routine is available to copy strings.
416 This symbol conditionally defines the symbol BSD when running on a
419 d_bsdgetpgrp (d_getpgrp.U):
420 This variable conditionally defines USE_BSD_GETPGRP if
421 getpgrp needs one arguments whereas USG one needs none.
423 d_bsdsetpgrp (d_setpgrp.U):
424 This variable conditionally defines USE_BSD_SETPGRP if
425 setpgrp needs two arguments whereas USG one needs none.
426 See also d_setpgid for a POSIX interface.
429 This variable conditionally defines the HAS_BZERO symbol if
430 the bzero() routine is available to set memory to 0.
432 d_casti32 (d_casti32.U):
433 This variable conditionally defines CASTI32, which indicates
434 whether the C compiler can cast large floats to 32-bit ints.
436 d_castneg (d_castneg.U):
437 This variable conditionally defines CASTNEG, which indicates
438 wether the C compiler can cast negative float to unsigned.
440 d_charvspr (d_vprintf.U):
441 This variable conditionally defines CHARVSPRINTF if this system
442 has vsprintf returning type (char*). The trend seems to be to
443 declare it as "int vsprintf()".
446 This variable conditionally defines the HAS_CHOWN symbol, which
447 indicates to the C program that the chown() routine is available.
449 d_chroot (d_chroot.U):
450 This variable conditionally defines the HAS_CHROOT symbol, which
451 indicates to the C program that the chroot() routine is available.
453 d_chsize (d_chsize.U):
454 This variable conditionally defines the CHSIZE symbol, which
455 indicates to the C program that the chsize() routine is available
456 to truncate files. You might need a -lx to get this routine.
459 This variable conditionally defines the HAS_CLASS symbol, which
460 indicates to the C program that the class() routine is available.
462 d_closedir (d_closedir.U):
463 This variable conditionally defines HAS_CLOSEDIR if closedir() is
466 d_cmsghdr_s (d_cmsghdr_s.U):
467 This variable conditionally defines the HAS_STRUCT_CMSGHDR symbol,
468 which indicates that the struct cmsghdr is supported.
471 This variable conditionally defines the HASCONST symbol, which
472 indicates to the C program that this C compiler knows about the
476 This variable conditionally defines the CRYPT symbol, which
477 indicates to the C program that the crypt() routine is available
478 to encrypt passwords and the like.
480 d_crypt_r (d_crypt_r.U):
481 This variable conditionally defines the HAS_CRYPT_R symbol,
482 which indicates to the C program that the crypt_r()
483 routine is available.
486 This variable conditionally defines the CSH symbol, which
487 indicates to the C program that the C-shell exists.
489 d_ctermid_r (d_ctermid_r.U):
490 This variable conditionally defines the HAS_CTERMID_R symbol,
491 which indicates to the C program that the ctermid_r()
492 routine is available.
494 d_ctime_r (d_ctime_r.U):
495 This variable conditionally defines the HAS_CTIME_R symbol,
496 which indicates to the C program that the ctime_r()
497 routine is available.
499 d_cuserid (d_cuserid.U):
500 This variable conditionally defines the HAS_CUSERID symbol, which
501 indicates to the C program that the cuserid() routine is available
502 to get character login names.
504 d_dbl_dig (d_dbl_dig.U):
505 This variable conditionally defines d_dbl_dig if this system's
506 header files provide DBL_DIG, which is the number of significant
507 digits in a double precision number.
509 d_dbminitproto (d_dbminitproto.U):
510 This variable conditionally defines the HAS_DBMINIT_PROTO symbol,
511 which indicates to the C program that the system provides
512 a prototype for the dbminit() function. Otherwise, it is
513 up to the program to supply one.
515 d_difftime (d_difftime.U):
516 This variable conditionally defines the HAS_DIFFTIME symbol, which
517 indicates to the C program that the difftime() routine is available.
520 This variable conditionally defines the HAS_DIRFD constant,
521 which indicates to the C program that dirfd() is available
522 to return the file descriptor of a directory stream.
524 d_dirnamlen (i_dirent.U):
525 This variable conditionally defines DIRNAMLEN, which indicates
526 to the C program that the length of directory entry names is
527 provided by a d_namelen field.
529 d_dlerror (d_dlerror.U):
530 This variable conditionally defines the HAS_DLERROR symbol, which
531 indicates to the C program that the dlerror() routine is available.
533 d_dlopen (d_dlopen.U):
534 This variable conditionally defines the HAS_DLOPEN symbol, which
535 indicates to the C program that the dlopen() routine is available.
537 d_dlsymun (d_dlsymun.U):
538 This variable conditionally defines DLSYM_NEEDS_UNDERSCORE, which
539 indicates that we need to prepend an underscore to the symbol
540 name before calling dlsym().
542 d_dosuid (d_dosuid.U):
543 This variable conditionally defines the symbol DOSUID, which
544 tells the C program that it should insert setuid emulation code
545 on hosts which have setuid #! scripts disabled.
547 d_drand48_r (d_drand48_r.U):
548 This variable conditionally defines the HAS_DRAND48_R symbol,
549 which indicates to the C program that the drand48_r()
550 routine is available.
552 d_drand48proto (d_drand48proto.U):
553 This variable conditionally defines the HAS_DRAND48_PROTO symbol,
554 which indicates to the C program that the system provides
555 a prototype for the drand48() function. Otherwise, it is
556 up to the program to supply one.
559 This variable conditionally defines HAS_DUP2 if dup2() is
560 available to duplicate file descriptors.
562 d_eaccess (d_eaccess.U):
563 This variable conditionally defines the HAS_EACCESS symbol, which
564 indicates to the C program that the eaccess() routine is available.
566 d_endgrent (d_endgrent.U):
567 This variable conditionally defines the HAS_ENDGRENT symbol, which
568 indicates to the C program that the endgrent() routine is available
569 for sequential access of the group database.
571 d_endgrent_r (d_endgrent_r.U):
572 This variable conditionally defines the HAS_ENDGRENT_R symbol,
573 which indicates to the C program that the endgrent_r()
574 routine is available.
576 d_endhent (d_endhent.U):
577 This variable conditionally defines HAS_ENDHOSTENT if endhostent() is
578 available to close whatever was being used for host queries.
580 d_endhostent_r (d_endhostent_r.U):
581 This variable conditionally defines the HAS_ENDHOSTENT_R symbol,
582 which indicates to the C program that the endhostent_r()
583 routine is available.
585 d_endnent (d_endnent.U):
586 This variable conditionally defines HAS_ENDNETENT if endnetent() is
587 available to close whatever was being used for network queries.
589 d_endnetent_r (d_endnetent_r.U):
590 This variable conditionally defines the HAS_ENDNETENT_R symbol,
591 which indicates to the C program that the endnetent_r()
592 routine is available.
594 d_endpent (d_endpent.U):
595 This variable conditionally defines HAS_ENDPROTOENT if endprotoent() is
596 available to close whatever was being used for protocol queries.
598 d_endprotoent_r (d_endprotoent_r.U):
599 This variable conditionally defines the HAS_ENDPROTOENT_R symbol,
600 which indicates to the C program that the endprotoent_r()
601 routine is available.
603 d_endpwent (d_endpwent.U):
604 This variable conditionally defines the HAS_ENDPWENT symbol, which
605 indicates to the C program that the endpwent() routine is available
606 for sequential access of the passwd database.
608 d_endpwent_r (d_endpwent_r.U):
609 This variable conditionally defines the HAS_ENDPWENT_R symbol,
610 which indicates to the C program that the endpwent_r()
611 routine is available.
613 d_endsent (d_endsent.U):
614 This variable conditionally defines HAS_ENDSERVENT if endservent() is
615 available to close whatever was being used for service queries.
617 d_endservent_r (d_endservent_r.U):
618 This variable conditionally defines the HAS_ENDSERVENT_R symbol,
619 which indicates to the C program that the endservent_r()
620 routine is available.
622 d_eofnblk (nblock_io.U):
623 This variable conditionally defines EOF_NONBLOCK if EOF can be seen
624 when reading from a non-blocking I/O source.
627 This variable conditionally defines the symbols EUNICE and VAX, which
628 alerts the C program that it must deal with ideosyncracies of VMS.
630 d_fchdir (d_fchdir.U):
631 This variable conditionally defines the HAS_FCHDIR symbol, which
632 indicates to the C program that the fchdir() routine is available.
634 d_fchmod (d_fchmod.U):
635 This variable conditionally defines the HAS_FCHMOD symbol, which
636 indicates to the C program that the fchmod() routine is available
637 to change mode of opened files.
639 d_fchown (d_fchown.U):
640 This variable conditionally defines the HAS_FCHOWN symbol, which
641 indicates to the C program that the fchown() routine is available
642 to change ownership of opened files.
645 This variable conditionally defines the HAS_FCNTL symbol, and indicates
646 whether the fcntl() function exists
648 d_fcntl_can_lock (d_fcntl_can_lock.U):
649 This variable conditionally defines the FCNTL_CAN_LOCK symbol
650 and indicates whether file locking with fcntl() works.
652 d_fd_macros (d_fd_set.U):
653 This variable contains the eventual value of the HAS_FD_MACROS symbol,
654 which indicates if your C compiler knows about the macros which
655 manipulate an fd_set.
657 d_fd_set (d_fd_set.U):
658 This variable contains the eventual value of the HAS_FD_SET symbol,
659 which indicates if your C compiler knows about the fd_set typedef.
661 d_fds_bits (d_fd_set.U):
662 This variable contains the eventual value of the HAS_FDS_BITS symbol,
663 which indicates if your fd_set typedef contains the fds_bits member.
664 If you have an fd_set typedef, but the dweebs who installed it did
665 a half-fast job and neglected to provide the macros to manipulate
666 an fd_set, HAS_FDS_BITS will let us know how to fix the gaffe.
668 d_fgetpos (d_fgetpos.U):
669 This variable conditionally defines HAS_FGETPOS if fgetpos() is
670 available to get the file position indicator.
672 d_finite (d_finite.U):
673 This variable conditionally defines the HAS_FINITE symbol, which
674 indicates to the C program that the finite() routine is available.
676 d_finitel (d_finitel.U):
677 This variable conditionally defines the HAS_FINITEL symbol, which
678 indicates to the C program that the finitel() routine is available.
680 d_flexfnam (d_flexfnam.U):
681 This variable conditionally defines the FLEXFILENAMES symbol, which
682 indicates that the system supports filenames longer than 14 characters.
685 This variable conditionally defines HAS_FLOCK if flock() is
686 available to do file locking.
688 d_flockproto (d_flockproto.U):
689 This variable conditionally defines the HAS_FLOCK_PROTO symbol,
690 which indicates to the C program that the system provides
691 a prototype for the flock() function. Otherwise, it is
692 up to the program to supply one.
695 This variable conditionally defines the HAS_FORK symbol, which
696 indicates to the C program that the fork() routine is available.
698 d_fp_class (d_fp_class.U):
699 This variable conditionally defines the HAS_FP_CLASS symbol, which
700 indicates to the C program that the fp_class() routine is available.
702 d_fpathconf (d_pathconf.U):
703 This variable conditionally defines the HAS_FPATHCONF symbol, which
704 indicates to the C program that the pathconf() routine is available
705 to determine file-system related limits and options associated
706 with a given open file descriptor.
708 d_fpclass (d_fpclass.U):
709 This variable conditionally defines the HAS_FPCLASS symbol, which
710 indicates to the C program that the fpclass() routine is available.
712 d_fpclassify (d_fpclassify.U):
713 This variable conditionally defines the HAS_FPCLASSIFY symbol, which
714 indicates to the C program that the fpclassify() routine is available.
716 d_fpclassl (d_fpclassl.U):
717 This variable conditionally defines the HAS_FPCLASSL symbol, which
718 indicates to the C program that the fpclassl() routine is available.
720 d_fpos64_t (d_fpos64_t.U):
721 This symbol will be defined if the C compiler supports fpos64_t.
723 d_frexpl (d_frexpl.U):
724 This variable conditionally defines the HAS_FREXPL symbol, which
725 indicates to the C program that the frexpl() routine is available.
727 d_fs_data_s (d_fs_data_s.U):
728 This variable conditionally defines the HAS_STRUCT_FS_DATA symbol,
729 which indicates that the struct fs_data is supported.
731 d_fseeko (d_fseeko.U):
732 This variable conditionally defines the HAS_FSEEKO symbol, which
733 indicates to the C program that the fseeko() routine is available.
735 d_fsetpos (d_fsetpos.U):
736 This variable conditionally defines HAS_FSETPOS if fsetpos() is
737 available to set the file position indicator.
739 d_fstatfs (d_fstatfs.U):
740 This variable conditionally defines the HAS_FSTATFS symbol, which
741 indicates to the C program that the fstatfs() routine is available.
743 d_fstatvfs (d_statvfs.U):
744 This variable conditionally defines the HAS_FSTATVFS symbol, which
745 indicates to the C program that the fstatvfs() routine is available.
748 This variable conditionally defines the HAS_FSYNC symbol, which
749 indicates to the C program that the fsync() routine is available.
751 d_ftello (d_ftello.U):
752 This variable conditionally defines the HAS_FTELLO symbol, which
753 indicates to the C program that the ftello() routine is available.
756 This variable conditionally defines the HAS_FTIME symbol, which indicates
757 that the ftime() routine exists. The ftime() routine is basically
758 a sub-second accuracy clock.
760 d_Gconvert (d_gconvert.U):
761 This variable holds what Gconvert is defined as to convert
762 floating point numbers into strings. By default, Configure
763 sets this macro to use the first of gconvert, gcvt, or sprintf
764 that pass sprintf-%g-like behaviour tests. If perl is using
765 long doubles, the macro uses the first of the following
766 functions that pass Configure's tests: qgcvt, sprintf (if
767 Configure knows how to make sprintf format long doubles--see
768 sPRIgldbl), gconvert, gcvt, and sprintf (casting to double).
769 The gconvert_preference and gconvert_ld_preference variables
770 can be used to alter Configure's preferences, for doubles and
771 long doubles, respectively. If present, they contain a
772 space-separated list of one or more of the above function
773 names in the order they should be tried.
774 d_Gconvert may be set to override Configure with a platform-
775 specific function. If this function expects a double, a
776 different value may need to be set by the uselongdouble.cbu
777 call-back unit so that long doubles can be formatted without
780 d_getcwd (d_getcwd.U):
781 This variable conditionally defines the HAS_GETCWD symbol, which
782 indicates to the C program that the getcwd() routine is available
783 to get the current working directory.
785 d_getespwnam (d_getespwnam.U):
786 This variable conditionally defines HAS_GETESPWNAM if getespwnam() is
787 available to retrieve enchanced (shadow) password entries by name.
789 d_getfsstat (d_getfsstat.U):
790 This variable conditionally defines the HAS_GETFSSTAT symbol, which
791 indicates to the C program that the getfsstat() routine is available.
793 d_getgrent (d_getgrent.U):
794 This variable conditionally defines the HAS_GETGRENT symbol, which
795 indicates to the C program that the getgrent() routine is available
796 for sequential access of the group database.
798 d_getgrent_r (d_getgrent_r.U):
799 This variable conditionally defines the HAS_GETGRENT_R symbol,
800 which indicates to the C program that the getgrent_r()
801 routine is available.
803 d_getgrgid_r (d_getgrgid_r.U):
804 This variable conditionally defines the HAS_GETGRGID_R symbol,
805 which indicates to the C program that the getgrgid_r()
806 routine is available.
808 d_getgrnam_r (d_getgrnam_r.U):
809 This variable conditionally defines the HAS_GETGRNAM_R symbol,
810 which indicates to the C program that the getgrnam_r()
811 routine is available.
813 d_getgrps (d_getgrps.U):
814 This variable conditionally defines the HAS_GETGROUPS symbol, which
815 indicates to the C program that the getgroups() routine is available
816 to get the list of process groups.
818 d_gethbyaddr (d_gethbyad.U):
819 This variable conditionally defines the HAS_GETHOSTBYADDR symbol, which
820 indicates to the C program that the gethostbyaddr() routine is available
821 to look up hosts by their IP addresses.
823 d_gethbyname (d_gethbynm.U):
824 This variable conditionally defines the HAS_GETHOSTBYNAME symbol, which
825 indicates to the C program that the gethostbyname() routine is available
826 to look up host names in some data base or other.
828 d_gethent (d_gethent.U):
829 This variable conditionally defines HAS_GETHOSTENT if gethostent() is
830 available to look up host names in some data base or another.
832 d_gethname (d_gethname.U):
833 This variable conditionally defines the HAS_GETHOSTNAME symbol, which
834 indicates to the C program that the gethostname() routine may be
835 used to derive the host name.
837 d_gethostbyaddr_r (d_gethostbyaddr_r.U):
838 This variable conditionally defines the HAS_GETHOSTBYADDR_R symbol,
839 which indicates to the C program that the gethostbyaddr_r()
840 routine is available.
842 d_gethostbyname_r (d_gethostbyname_r.U):
843 This variable conditionally defines the HAS_GETHOSTBYNAME_R symbol,
844 which indicates to the C program that the gethostbyname_r()
845 routine is available.
847 d_gethostent_r (d_gethostent_r.U):
848 This variable conditionally defines the HAS_GETHOSTENT_R symbol,
849 which indicates to the C program that the gethostent_r()
850 routine is available.
852 d_gethostprotos (d_gethostprotos.U):
853 This variable conditionally defines the HAS_GETHOST_PROTOS symbol,
854 which indicates to the C program that <netdb.h> supplies
855 prototypes for the various gethost*() functions.
856 See also netdbtype.U for probing for various netdb types.
858 d_getitimer (d_getitimer.U):
859 This variable conditionally defines the HAS_GETITIMER symbol, which
860 indicates to the C program that the getitimer() routine is available.
862 d_getlogin (d_getlogin.U):
863 This variable conditionally defines the HAS_GETLOGIN symbol, which
864 indicates to the C program that the getlogin() routine is available
865 to get the login name.
867 d_getlogin_r (d_getlogin_r.U):
868 This variable conditionally defines the HAS_GETLOGIN_R symbol,
869 which indicates to the C program that the getlogin_r()
870 routine is available.
872 d_getmnt (d_getmnt.U):
873 This variable conditionally defines the HAS_GETMNT symbol, which
874 indicates to the C program that the getmnt() routine is available
875 to retrieve one or more mount info blocks by filename.
877 d_getmntent (d_getmntent.U):
878 This variable conditionally defines the HAS_GETMNTENT symbol, which
879 indicates to the C program that the getmntent() routine is available
880 to iterate through mounted files to get their mount info.
882 d_getnbyaddr (d_getnbyad.U):
883 This variable conditionally defines the HAS_GETNETBYADDR symbol, which
884 indicates to the C program that the getnetbyaddr() routine is available
885 to look up networks by their IP addresses.
887 d_getnbyname (d_getnbynm.U):
888 This variable conditionally defines the HAS_GETNETBYNAME symbol, which
889 indicates to the C program that the getnetbyname() routine is available
890 to look up networks by their names.
892 d_getnent (d_getnent.U):
893 This variable conditionally defines HAS_GETNETENT if getnetent() is
894 available to look up network names in some data base or another.
896 d_getnetbyaddr_r (d_getnetbyaddr_r.U):
897 This variable conditionally defines the HAS_GETNETBYADDR_R symbol,
898 which indicates to the C program that the getnetbyaddr_r()
899 routine is available.
901 d_getnetbyname_r (d_getnetbyname_r.U):
902 This variable conditionally defines the HAS_GETNETBYNAME_R symbol,
903 which indicates to the C program that the getnetbyname_r()
904 routine is available.
906 d_getnetent_r (d_getnetent_r.U):
907 This variable conditionally defines the HAS_GETNETENT_R symbol,
908 which indicates to the C program that the getnetent_r()
909 routine is available.
911 d_getnetprotos (d_getnetprotos.U):
912 This variable conditionally defines the HAS_GETNET_PROTOS symbol,
913 which indicates to the C program that <netdb.h> supplies
914 prototypes for the various getnet*() functions.
915 See also netdbtype.U for probing for various netdb types.
917 d_getpagsz (d_getpagsz.U):
918 This variable conditionally defines HAS_GETPAGESIZE if getpagesize()
919 is available to get the system page size.
921 d_getpbyname (d_getprotby.U):
922 This variable conditionally defines the HAS_GETPROTOBYNAME
923 symbol, which indicates to the C program that the
924 getprotobyname() routine is available to look up protocols
927 d_getpbynumber (d_getprotby.U):
928 This variable conditionally defines the HAS_GETPROTOBYNUMBER
929 symbol, which indicates to the C program that the
930 getprotobynumber() routine is available to look up protocols
933 d_getpent (d_getpent.U):
934 This variable conditionally defines HAS_GETPROTOENT if getprotoent() is
935 available to look up protocols in some data base or another.
937 d_getpgid (d_getpgid.U):
938 This variable conditionally defines the HAS_GETPGID symbol, which
939 indicates to the C program that the getpgid(pid) function
940 is available to get the process group id.
942 d_getpgrp2 (d_getpgrp2.U):
943 This variable conditionally defines the HAS_GETPGRP2 symbol, which
944 indicates to the C program that the getpgrp2() (as in DG/UX) routine
945 is available to get the current process group.
947 d_getpgrp (d_getpgrp.U):
948 This variable conditionally defines HAS_GETPGRP if getpgrp() is
949 available to get the current process group.
951 d_getppid (d_getppid.U):
952 This variable conditionally defines the HAS_GETPPID symbol, which
953 indicates to the C program that the getppid() routine is available
954 to get the parent process ID.
956 d_getprior (d_getprior.U):
957 This variable conditionally defines HAS_GETPRIORITY if getpriority()
958 is available to get a process's priority.
960 d_getprotobyname_r (d_getprotobyname_r.U):
961 This variable conditionally defines the HAS_GETPROTOBYNAME_R symbol,
962 which indicates to the C program that the getprotobyname_r()
963 routine is available.
965 d_getprotobynumber_r (d_getprotobynumber_r.U):
966 This variable conditionally defines the HAS_GETPROTOBYNUMBER_R symbol,
967 which indicates to the C program that the getprotobynumber_r()
968 routine is available.
970 d_getprotoent_r (d_getprotoent_r.U):
971 This variable conditionally defines the HAS_GETPROTOENT_R symbol,
972 which indicates to the C program that the getprotoent_r()
973 routine is available.
975 d_getprotoprotos (d_getprotoprotos.U):
976 This variable conditionally defines the HAS_GETPROTO_PROTOS symbol,
977 which indicates to the C program that <netdb.h> supplies
978 prototypes for the various getproto*() functions.
979 See also netdbtype.U for probing for various netdb types.
981 d_getprpwnam (d_getprpwnam.U):
982 This variable conditionally defines HAS_GETPRPWNAM if getprpwnam() is
983 available to retrieve protected (shadow) password entries by name.
985 d_getpwent (d_getpwent.U):
986 This variable conditionally defines the HAS_GETPWENT symbol, which
987 indicates to the C program that the getpwent() routine is available
988 for sequential access of the passwd database.
990 d_getpwent_r (d_getpwent_r.U):
991 This variable conditionally defines the HAS_GETPWENT_R symbol,
992 which indicates to the C program that the getpwent_r()
993 routine is available.
995 d_getpwnam_r (d_getpwnam_r.U):
996 This variable conditionally defines the HAS_GETPWNAM_R symbol,
997 which indicates to the C program that the getpwnam_r()
998 routine is available.
1000 d_getpwuid_r (d_getpwuid_r.U):
1001 This variable conditionally defines the HAS_GETPWUID_R symbol,
1002 which indicates to the C program that the getpwuid_r()
1003 routine is available.
1005 d_getsbyname (d_getsrvby.U):
1006 This variable conditionally defines the HAS_GETSERVBYNAME
1007 symbol, which indicates to the C program that the
1008 getservbyname() routine is available to look up services
1011 d_getsbyport (d_getsrvby.U):
1012 This variable conditionally defines the HAS_GETSERVBYPORT
1013 symbol, which indicates to the C program that the
1014 getservbyport() routine is available to look up services
1017 d_getsent (d_getsent.U):
1018 This variable conditionally defines HAS_GETSERVENT if getservent() is
1019 available to look up network services in some data base or another.
1021 d_getservbyname_r (d_getservbyname_r.U):
1022 This variable conditionally defines the HAS_GETSERVBYNAME_R symbol,
1023 which indicates to the C program that the getservbyname_r()
1024 routine is available.
1026 d_getservbyport_r (d_getservbyport_r.U):
1027 This variable conditionally defines the HAS_GETSERVBYPORT_R symbol,
1028 which indicates to the C program that the getservbyport_r()
1029 routine is available.
1031 d_getservent_r (d_getservent_r.U):
1032 This variable conditionally defines the HAS_GETSERVENT_R symbol,
1033 which indicates to the C program that the getservent_r()
1034 routine is available.
1036 d_getservprotos (d_getservprotos.U):
1037 This variable conditionally defines the HAS_GETSERV_PROTOS symbol,
1038 which indicates to the C program that <netdb.h> supplies
1039 prototypes for the various getserv*() functions.
1040 See also netdbtype.U for probing for various netdb types.
1042 d_getspnam (d_getspnam.U):
1043 This variable conditionally defines HAS_GETSPNAM if getspnam() is
1044 available to retrieve SysV shadow password entries by name.
1046 d_getspnam_r (d_getspnam_r.U):
1047 This variable conditionally defines the HAS_GETSPNAM_R symbol,
1048 which indicates to the C program that the getspnam_r()
1049 routine is available.
1051 d_gettimeod (d_ftime.U):
1052 This variable conditionally defines the HAS_GETTIMEOFDAY symbol, which
1053 indicates that the gettimeofday() system call exists (to obtain a
1054 sub-second accuracy clock). You should probably include <sys/resource.h>.
1056 d_gmtime_r (d_gmtime_r.U):
1057 This variable conditionally defines the HAS_GMTIME_R symbol,
1058 which indicates to the C program that the gmtime_r()
1059 routine is available.
1061 d_gnulibc (d_gnulibc.U):
1062 Defined if we're dealing with the GNU C Library.
1064 d_grpasswd (i_grp.U):
1065 This variable conditionally defines GRPASSWD, which indicates
1066 that struct group in <grp.h> contains gr_passwd.
1068 d_hasmntopt (d_hasmntopt.U):
1069 This variable conditionally defines the HAS_HASMNTOPT symbol, which
1070 indicates to the C program that the hasmntopt() routine is available
1071 to query the mount options of file systems.
1073 d_htonl (d_htonl.U):
1074 This variable conditionally defines HAS_HTONL if htonl() and its
1075 friends are available to do network order byte swapping.
1077 d_index (d_strchr.U):
1078 This variable conditionally defines HAS_INDEX if index() and
1079 rindex() are available for string searching.
1081 d_inetaton (d_inetaton.U):
1082 This variable conditionally defines the HAS_INET_ATON symbol, which
1083 indicates to the C program that the inet_aton() function is available
1084 to parse IP address "dotted-quad" strings.
1086 d_int64_t (d_int64_t.U):
1087 This symbol will be defined if the C compiler supports int64_t.
1089 d_isascii (d_isascii.U):
1090 This variable conditionally defines the HAS_ISASCII constant,
1091 which indicates to the C program that isascii() is available.
1093 d_isfinite (d_isfinite.U):
1094 This variable conditionally defines the HAS_ISFINITE symbol, which
1095 indicates to the C program that the isfinite() routine is available.
1097 d_isinf (d_isinf.U):
1098 This variable conditionally defines the HAS_ISINF symbol, which
1099 indicates to the C program that the isinf() routine is available.
1101 d_isnan (d_isnan.U):
1102 This variable conditionally defines the HAS_ISNAN symbol, which
1103 indicates to the C program that the isnan() routine is available.
1105 d_isnanl (d_isnanl.U):
1106 This variable conditionally defines the HAS_ISNANL symbol, which
1107 indicates to the C program that the isnanl() routine is available.
1109 d_killpg (d_killpg.U):
1110 This variable conditionally defines the HAS_KILLPG symbol, which
1111 indicates to the C program that the killpg() routine is available
1112 to kill process groups.
1114 d_lchown (d_lchown.U):
1115 This variable conditionally defines the HAS_LCHOWN symbol, which
1116 indicates to the C program that the lchown() routine is available
1117 to operate on a symbolic link (instead of following the link).
1119 d_ldbl_dig (d_ldbl_dig.U):
1120 This variable conditionally defines d_ldbl_dig if this system's
1121 header files provide LDBL_DIG, which is the number of significant
1122 digits in a long double precision number.
1125 This variable conditionally defines HAS_LINK if link() is
1126 available to create hard links.
1128 d_localtime_r (d_localtime_r.U):
1129 This variable conditionally defines the HAS_LOCALTIME_R symbol,
1130 which indicates to the C program that the localtime_r()
1131 routine is available.
1133 d_locconv (d_locconv.U):
1134 This variable conditionally defines HAS_LOCALECONV if localeconv() is
1135 available for numeric and monetary formatting conventions.
1137 d_lockf (d_lockf.U):
1138 This variable conditionally defines HAS_LOCKF if lockf() is
1139 available to do file locking.
1141 d_longdbl (d_longdbl.U):
1142 This variable conditionally defines HAS_LONG_DOUBLE if
1143 the long double type is supported.
1145 d_longlong (d_longlong.U):
1146 This variable conditionally defines HAS_LONG_LONG if
1147 the long long type is supported.
1149 d_lseekproto (d_lseekproto.U):
1150 This variable conditionally defines the HAS_LSEEK_PROTO symbol,
1151 which indicates to the C program that the system provides
1152 a prototype for the lseek() function. Otherwise, it is
1153 up to the program to supply one.
1155 d_lstat (d_lstat.U):
1156 This variable conditionally defines HAS_LSTAT if lstat() is
1157 available to do file stats on symbolic links.
1159 d_madvise (d_madvise.U):
1160 This variable conditionally defines HAS_MADVISE if madvise() is
1161 available to map a file into memory.
1163 d_mblen (d_mblen.U):
1164 This variable conditionally defines the HAS_MBLEN symbol, which
1165 indicates to the C program that the mblen() routine is available
1166 to find the number of bytes in a multibye character.
1168 d_mbstowcs (d_mbstowcs.U):
1169 This variable conditionally defines the HAS_MBSTOWCS symbol, which
1170 indicates to the C program that the mbstowcs() routine is available
1171 to convert a multibyte string into a wide character string.
1173 d_mbtowc (d_mbtowc.U):
1174 This variable conditionally defines the HAS_MBTOWC symbol, which
1175 indicates to the C program that the mbtowc() routine is available
1176 to convert multibyte to a wide character.
1178 d_memchr (d_memchr.U):
1179 This variable conditionally defines the HAS_MEMCHR symbol, which
1180 indicates to the C program that the memchr() routine is available
1181 to locate characters within a C string.
1183 d_memcmp (d_memcmp.U):
1184 This variable conditionally defines the HAS_MEMCMP symbol, which
1185 indicates to the C program that the memcmp() routine is available
1186 to compare blocks of memory.
1188 d_memcpy (d_memcpy.U):
1189 This variable conditionally defines the HAS_MEMCPY symbol, which
1190 indicates to the C program that the memcpy() routine is available
1191 to copy blocks of memory.
1193 d_memmove (d_memmove.U):
1194 This variable conditionally defines the HAS_MEMMOVE symbol, which
1195 indicates to the C program that the memmove() routine is available
1196 to copy potentatially overlapping blocks of memory.
1198 d_memset (d_memset.U):
1199 This variable conditionally defines the HAS_MEMSET symbol, which
1200 indicates to the C program that the memset() routine is available
1201 to set blocks of memory.
1203 d_mkdir (d_mkdir.U):
1204 This variable conditionally defines the HAS_MKDIR symbol, which
1205 indicates to the C program that the mkdir() routine is available
1206 to create directories..
1208 d_mkdtemp (d_mkdtemp.U):
1209 This variable conditionally defines the HAS_MKDTEMP symbol, which
1210 indicates to the C program that the mkdtemp() routine is available
1211 to exclusively create a uniquely named temporary directory.
1213 d_mkfifo (d_mkfifo.U):
1214 This variable conditionally defines the HAS_MKFIFO symbol, which
1215 indicates to the C program that the mkfifo() routine is available.
1217 d_mkstemp (d_mkstemp.U):
1218 This variable conditionally defines the HAS_MKSTEMP symbol, which
1219 indicates to the C program that the mkstemp() routine is available
1220 to exclusively create and open a uniquely named temporary file.
1222 d_mkstemps (d_mkstemps.U):
1223 This variable conditionally defines the HAS_MKSTEMPS symbol, which
1224 indicates to the C program that the mkstemps() routine is available
1225 to exclusively create and open a uniquely named (with a suffix)
1228 d_mktime (d_mktime.U):
1229 This variable conditionally defines the HAS_MKTIME symbol, which
1230 indicates to the C program that the mktime() routine is available.
1233 This variable conditionally defines HAS_MMAP if mmap() is
1234 available to map a file into memory.
1236 d_modfl (d_modfl.U):
1237 This variable conditionally defines the HAS_MODFL symbol, which
1238 indicates to the C program that the modfl() routine is available.
1240 d_modfl_pow32_bug (d_modfl.U):
1241 This variable conditionally defines the HAS_MODFL_POW32_BUG symbol,
1242 which indicates that modfl() is broken for long doubles >= pow(2, 32).
1243 For example from 4294967303.150000 one would get 4294967302.000000
1244 and 1.150000. The bug has been seen in certain versions of glibc,
1245 release 2.2.2 is known to be okay.
1247 d_mprotect (d_mprotect.U):
1248 This variable conditionally defines HAS_MPROTECT if mprotect() is
1249 available to modify the access protection of a memory mapped file.
1252 This variable conditionally defines the HAS_MSG symbol, which
1253 indicates that the entire msg*(2) library is present.
1255 d_msg_ctrunc (d_socket.U):
1256 This variable conditionally defines the HAS_MSG_CTRUNC symbol,
1257 which indicates that the MSG_CTRUNC is available. #ifdef is
1258 not enough because it may be an enum, glibc has been known to do this.
1260 d_msg_dontroute (d_socket.U):
1261 This variable conditionally defines the HAS_MSG_DONTROUTE symbol,
1262 which indicates that the MSG_DONTROUTE is available. #ifdef is
1263 not enough because it may be an enum, glibc has been known to do this.
1265 d_msg_oob (d_socket.U):
1266 This variable conditionally defines the HAS_MSG_OOB symbol,
1267 which indicates that the MSG_OOB is available. #ifdef is
1268 not enough because it may be an enum, glibc has been known to do this.
1270 d_msg_peek (d_socket.U):
1271 This variable conditionally defines the HAS_MSG_PEEK symbol,
1272 which indicates that the MSG_PEEK is available. #ifdef is
1273 not enough because it may be an enum, glibc has been known to do this.
1275 d_msg_proxy (d_socket.U):
1276 This variable conditionally defines the HAS_MSG_PROXY symbol,
1277 which indicates that the MSG_PROXY is available. #ifdef is
1278 not enough because it may be an enum, glibc has been known to do this.
1280 d_msgctl (d_msgctl.U):
1281 This variable conditionally defines the HAS_MSGCTL symbol, which
1282 indicates to the C program that the msgctl() routine is available.
1284 d_msgget (d_msgget.U):
1285 This variable conditionally defines the HAS_MSGGET symbol, which
1286 indicates to the C program that the msgget() routine is available.
1288 d_msghdr_s (d_msghdr_s.U):
1289 This variable conditionally defines the HAS_STRUCT_MSGHDR symbol,
1290 which indicates that the struct msghdr is supported.
1292 d_msgrcv (d_msgrcv.U):
1293 This variable conditionally defines the HAS_MSGRCV symbol, which
1294 indicates to the C program that the msgrcv() routine is available.
1296 d_msgsnd (d_msgsnd.U):
1297 This variable conditionally defines the HAS_MSGSND symbol, which
1298 indicates to the C program that the msgsnd() routine is available.
1300 d_msync (d_msync.U):
1301 This variable conditionally defines HAS_MSYNC if msync() is
1302 available to synchronize a mapped file.
1304 d_munmap (d_munmap.U):
1305 This variable conditionally defines HAS_MUNMAP if munmap() is
1306 available to unmap a region mapped by mmap().
1308 d_mymalloc (mallocsrc.U):
1309 This variable conditionally defines MYMALLOC in case other parts
1310 of the source want to take special action if MYMALLOC is used.
1311 This may include different sorts of profiling or error detection.
1314 This variable conditionally defines the HAS_NICE symbol, which
1315 indicates to the C program that the nice() routine is available.
1317 d_nl_langinfo (d_nl_langinfo.U):
1318 This variable conditionally defines the HAS_NL_LANGINFO symbol, which
1319 indicates to the C program that the nl_langinfo() routine is available.
1321 d_nv_preserves_uv (perlxv.U):
1322 This variable indicates whether a variable of type nvtype
1323 can preserve all the bits a variable of type uvtype.
1325 d_off64_t (d_off64_t.U):
1326 This symbol will be defined if the C compiler supports off64_t.
1328 d_old_pthread_create_joinable (d_pthrattrj.U):
1329 This variable conditionally defines pthread_create_joinable.
1330 undef if pthread.h defines PTHREAD_CREATE_JOINABLE.
1332 d_oldpthreads (usethreads.U):
1333 This variable conditionally defines the OLD_PTHREADS_API symbol,
1334 and indicates that Perl should be built to use the old
1335 draft POSIX threads API. This is only potentially meaningful if
1338 d_oldsock (d_socket.U):
1339 This variable conditionally defines the OLDSOCKET symbol, which
1340 indicates that the BSD socket interface is based on 4.1c and not 4.2.
1342 d_open3 (d_open3.U):
1343 This variable conditionally defines the HAS_OPEN3 manifest constant,
1344 which indicates to the C program that the 3 argument version of
1345 the open(2) function is available.
1347 d_pathconf (d_pathconf.U):
1348 This variable conditionally defines the HAS_PATHCONF symbol, which
1349 indicates to the C program that the pathconf() routine is available
1350 to determine file-system related limits and options associated
1351 with a given filename.
1353 d_pause (d_pause.U):
1354 This variable conditionally defines the HAS_PAUSE symbol, which
1355 indicates to the C program that the pause() routine is available
1356 to suspend a process until a signal is received.
1358 d_perl_otherlibdirs (otherlibdirs.U):
1359 This variable conditionally defines PERL_OTHERLIBDIRS, which
1360 contains a colon-separated set of paths for the perl binary to
1361 include in @INC. See also otherlibdirs.
1363 d_phostname (d_gethname.U):
1364 This variable conditionally defines the HAS_PHOSTNAME symbol, which
1365 contains the shell command which, when fed to popen(), may be
1366 used to derive the host name.
1369 This variable conditionally defines the HAS_PIPE symbol, which
1370 indicates to the C program that the pipe() routine is available
1371 to create an inter-process channel.
1374 This variable conditionally defines the HAS_POLL symbol, which
1375 indicates to the C program that the poll() routine is available
1376 to poll active file descriptors.
1378 d_portable (d_portable.U):
1379 This variable conditionally defines the PORTABLE symbol, which
1380 indicates to the C program that it should not assume that it is
1381 running on the machine it was compiled on.
1383 d_PRId64 (quadfio.U):
1384 This variable conditionally defines the PERL_PRId64 symbol, which
1385 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1387 d_PRIeldbl (longdblfio.U):
1388 This variable conditionally defines the PERL_PRIfldbl symbol, which
1389 indiciates that stdio has a symbol to print long doubles.
1391 d_PRIEUldbl (longdblfio.U):
1392 This variable conditionally defines the PERL_PRIfldbl symbol, which
1393 indiciates that stdio has a symbol to print long doubles.
1394 The 'U' in the name is to separate this from d_PRIeldbl so that even
1395 case-blind systems can see the difference.
1397 d_PRIfldbl (longdblfio.U):
1398 This variable conditionally defines the PERL_PRIfldbl symbol, which
1399 indiciates that stdio has a symbol to print long doubles.
1401 d_PRIFUldbl (longdblfio.U):
1402 This variable conditionally defines the PERL_PRIfldbl symbol, which
1403 indiciates that stdio has a symbol to print long doubles.
1404 The 'U' in the name is to separate this from d_PRIfldbl so that even
1405 case-blind systems can see the difference.
1407 d_PRIgldbl (longdblfio.U):
1408 This variable conditionally defines the PERL_PRIfldbl symbol, which
1409 indiciates that stdio has a symbol to print long doubles.
1411 d_PRIGUldbl (longdblfio.U):
1412 This variable conditionally defines the PERL_PRIfldbl symbol, which
1413 indiciates that stdio has a symbol to print long doubles.
1414 The 'U' in the name is to separate this from d_PRIgldbl so that even
1415 case-blind systems can see the difference.
1417 d_PRIi64 (quadfio.U):
1418 This variable conditionally defines the PERL_PRIi64 symbol, which
1419 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1421 d_PRIo64 (quadfio.U):
1422 This variable conditionally defines the PERL_PRIo64 symbol, which
1423 indiciates that stdio has a symbol to print 64-bit octal numbers.
1425 d_PRIu64 (quadfio.U):
1426 This variable conditionally defines the PERL_PRIu64 symbol, which
1427 indiciates that stdio has a symbol to print 64-bit unsigned decimal
1430 d_PRIx64 (quadfio.U):
1431 This variable conditionally defines the PERL_PRIx64 symbol, which
1432 indiciates that stdio has a symbol to print 64-bit hexadecimal numbers.
1434 d_PRIXU64 (quadfio.U):
1435 This variable conditionally defines the PERL_PRIXU64 symbol, which
1436 indiciates that stdio has a symbol to print 64-bit hExADECimAl numbers.
1437 The 'U' in the name is to separate this from d_PRIx64 so that even
1438 case-blind systems can see the difference.
1440 d_procselfexe (d_procselfexe.U):
1441 Defined if $procselfexe is symlink to the absolute
1442 pathname of the executing program.
1444 d_pthread_atfork (d_pthread_atfork.U):
1445 This variable conditionally defines the HAS_PTHREAD_ATFORK symbol,
1446 which indicates to the C program that the pthread_atfork()
1447 routine is available.
1449 d_pthread_yield (d_pthread_y.U):
1450 This variable conditionally defines the HAS_PTHREAD_YIELD
1451 symbol if the pthread_yield routine is available to yield
1452 the execution of the current thread.
1455 This variable conditionally defines PWAGE, which indicates
1456 that struct passwd contains pw_age.
1458 d_pwchange (i_pwd.U):
1459 This variable conditionally defines PWCHANGE, which indicates
1460 that struct passwd contains pw_change.
1462 d_pwclass (i_pwd.U):
1463 This variable conditionally defines PWCLASS, which indicates
1464 that struct passwd contains pw_class.
1466 d_pwcomment (i_pwd.U):
1467 This variable conditionally defines PWCOMMENT, which indicates
1468 that struct passwd contains pw_comment.
1470 d_pwexpire (i_pwd.U):
1471 This variable conditionally defines PWEXPIRE, which indicates
1472 that struct passwd contains pw_expire.
1474 d_pwgecos (i_pwd.U):
1475 This variable conditionally defines PWGECOS, which indicates
1476 that struct passwd contains pw_gecos.
1478 d_pwpasswd (i_pwd.U):
1479 This variable conditionally defines PWPASSWD, which indicates
1480 that struct passwd contains pw_passwd.
1482 d_pwquota (i_pwd.U):
1483 This variable conditionally defines PWQUOTA, which indicates
1484 that struct passwd contains pw_quota.
1486 d_qgcvt (d_qgcvt.U):
1487 This variable conditionally defines the HAS_QGCVT symbol, which
1488 indicates to the C program that the qgcvt() routine is available.
1490 d_quad (quadtype.U):
1491 This variable, if defined, tells that there's a 64-bit integer type,
1494 d_random_r (d_random_r.U):
1495 This variable conditionally defines the HAS_RANDOM_R symbol,
1496 which indicates to the C program that the random_r()
1497 routine is available.
1499 d_readdir64_r (d_readdir64_r.U):
1500 This variable conditionally defines the HAS_READDIR64_R symbol,
1501 which indicates to the C program that the readdir64_r()
1502 routine is available.
1504 d_readdir (d_readdir.U):
1505 This variable conditionally defines HAS_READDIR if readdir() is
1506 available to read directory entries.
1508 d_readdir_r (d_readdir_r.U):
1509 This variable conditionally defines the HAS_READDIR_R symbol,
1510 which indicates to the C program that the readdir_r()
1511 routine is available.
1513 d_readlink (d_readlink.U):
1514 This variable conditionally defines the HAS_READLINK symbol, which
1515 indicates to the C program that the readlink() routine is available
1516 to read the value of a symbolic link.
1518 d_readv (d_readv.U):
1519 This variable conditionally defines the HAS_READV symbol, which
1520 indicates to the C program that the readv() routine is available.
1522 d_recvmsg (d_recvmsg.U):
1523 This variable conditionally defines the HAS_RECVMSG symbol, which
1524 indicates to the C program that the recvmsg() routine is available.
1526 d_rename (d_rename.U):
1527 This variable conditionally defines the HAS_RENAME symbol, which
1528 indicates to the C program that the rename() routine is available
1531 d_rewinddir (d_readdir.U):
1532 This variable conditionally defines HAS_REWINDDIR if rewinddir() is
1535 d_rmdir (d_rmdir.U):
1536 This variable conditionally defines HAS_RMDIR if rmdir() is
1537 available to remove directories.
1539 d_safebcpy (d_safebcpy.U):
1540 This variable conditionally defines the HAS_SAFE_BCOPY symbol if
1541 the bcopy() routine can do overlapping copies. Normally, you
1542 should probably use memmove().
1544 d_safemcpy (d_safemcpy.U):
1545 This variable conditionally defines the HAS_SAFE_MEMCPY symbol if
1546 the memcpy() routine can do overlapping copies.
1547 For overlapping copies, memmove() should be used, if available.
1549 d_sanemcmp (d_sanemcmp.U):
1550 This variable conditionally defines the HAS_SANE_MEMCMP symbol if
1551 the memcpy() routine is available and can be used to compare relative
1552 magnitudes of chars with their high bits set.
1554 d_sbrkproto (d_sbrkproto.U):
1555 This variable conditionally defines the HAS_SBRK_PROTO symbol,
1556 which indicates to the C program that the system provides
1557 a prototype for the sbrk() function. Otherwise, it is
1558 up to the program to supply one.
1560 d_sched_yield (d_pthread_y.U):
1561 This variable conditionally defines the HAS_SCHED_YIELD
1562 symbol if the sched_yield routine is available to yield
1563 the execution of the current thread.
1565 d_scm_rights (d_socket.U):
1566 This variable conditionally defines the HAS_SCM_RIGHTS symbol,
1567 which indicates that the SCM_RIGHTS is available. #ifdef is
1568 not enough because it may be an enum, glibc has been known to do this.
1570 d_SCNfldbl (longdblfio.U):
1571 This variable conditionally defines the PERL_PRIfldbl symbol, which
1572 indiciates that stdio has a symbol to scan long doubles.
1574 d_seekdir (d_readdir.U):
1575 This variable conditionally defines HAS_SEEKDIR if seekdir() is
1578 d_select (d_select.U):
1579 This variable conditionally defines HAS_SELECT if select() is
1580 available to select active file descriptors. A <sys/time.h>
1581 inclusion may be necessary for the timeout field.
1584 This variable conditionally defines the HAS_SEM symbol, which
1585 indicates that the entire sem*(2) library is present.
1587 d_semctl (d_semctl.U):
1588 This variable conditionally defines the HAS_SEMCTL symbol, which
1589 indicates to the C program that the semctl() routine is available.
1591 d_semctl_semid_ds (d_union_semun.U):
1592 This variable conditionally defines USE_SEMCTL_SEMID_DS, which
1593 indicates that struct semid_ds * is to be used for semctl IPC_STAT.
1595 d_semctl_semun (d_union_semun.U):
1596 This variable conditionally defines USE_SEMCTL_SEMUN, which
1597 indicates that union semun is to be used for semctl IPC_STAT.
1599 d_semget (d_semget.U):
1600 This variable conditionally defines the HAS_SEMGET symbol, which
1601 indicates to the C program that the semget() routine is available.
1603 d_semop (d_semop.U):
1604 This variable conditionally defines the HAS_SEMOP symbol, which
1605 indicates to the C program that the semop() routine is available.
1607 d_sendmsg (d_sendmsg.U):
1608 This variable conditionally defines the HAS_SENDMSG symbol, which
1609 indicates to the C program that the sendmsg() routine is available.
1611 d_setegid (d_setegid.U):
1612 This variable conditionally defines the HAS_SETEGID symbol, which
1613 indicates to the C program that the setegid() routine is available
1614 to change the effective gid of the current program.
1616 d_seteuid (d_seteuid.U):
1617 This variable conditionally defines the HAS_SETEUID symbol, which
1618 indicates to the C program that the seteuid() routine is available
1619 to change the effective uid of the current program.
1621 d_setgrent (d_setgrent.U):
1622 This variable conditionally defines the HAS_SETGRENT symbol, which
1623 indicates to the C program that the setgrent() routine is available
1624 for initializing sequential access to the group database.
1626 d_setgrent_r (d_setgrent_r.U):
1627 This variable conditionally defines the HAS_SETGRENT_R symbol,
1628 which indicates to the C program that the setgrent_r()
1629 routine is available.
1631 d_setgrps (d_setgrps.U):
1632 This variable conditionally defines the HAS_SETGROUPS symbol, which
1633 indicates to the C program that the setgroups() routine is available
1634 to set the list of process groups.
1636 d_sethent (d_sethent.U):
1637 This variable conditionally defines HAS_SETHOSTENT if sethostent() is
1640 d_sethostent_r (d_sethostent_r.U):
1641 This variable conditionally defines the HAS_SETHOSTENT_R symbol,
1642 which indicates to the C program that the sethostent_r()
1643 routine is available.
1645 d_setitimer (d_setitimer.U):
1646 This variable conditionally defines the HAS_SETITIMER symbol, which
1647 indicates to the C program that the setitimer() routine is available.
1649 d_setlinebuf (d_setlnbuf.U):
1650 This variable conditionally defines the HAS_SETLINEBUF symbol, which
1651 indicates to the C program that the setlinebuf() routine is available
1652 to change stderr or stdout from block-buffered or unbuffered to a
1655 d_setlocale (d_setlocale.U):
1656 This variable conditionally defines HAS_SETLOCALE if setlocale() is
1657 available to handle locale-specific ctype implementations.
1659 d_setlocale_r (d_setlocale_r.U):
1660 This variable conditionally defines the HAS_SETLOCALE_R symbol,
1661 which indicates to the C program that the setlocale_r()
1662 routine is available.
1664 d_setnent (d_setnent.U):
1665 This variable conditionally defines HAS_SETNETENT if setnetent() is
1668 d_setnetent_r (d_setnetent_r.U):
1669 This variable conditionally defines the HAS_SETNETENT_R symbol,
1670 which indicates to the C program that the setnetent_r()
1671 routine is available.
1673 d_setpent (d_setpent.U):
1674 This variable conditionally defines HAS_SETPROTOENT if setprotoent() is
1677 d_setpgid (d_setpgid.U):
1678 This variable conditionally defines the HAS_SETPGID symbol if the
1679 setpgid(pid, gpid) function is available to set process group ID.
1681 d_setpgrp2 (d_setpgrp2.U):
1682 This variable conditionally defines the HAS_SETPGRP2 symbol, which
1683 indicates to the C program that the setpgrp2() (as in DG/UX) routine
1684 is available to set the current process group.
1686 d_setpgrp (d_setpgrp.U):
1687 This variable conditionally defines HAS_SETPGRP if setpgrp() is
1688 available to set the current process group.
1690 d_setprior (d_setprior.U):
1691 This variable conditionally defines HAS_SETPRIORITY if setpriority()
1692 is available to set a process's priority.
1694 d_setproctitle (d_setproctitle.U):
1695 This variable conditionally defines the HAS_SETPROCTITLE symbol,
1696 which indicates to the C program that the setproctitle() routine
1699 d_setprotoent_r (d_setprotoent_r.U):
1700 This variable conditionally defines the HAS_SETPROTOENT_R symbol,
1701 which indicates to the C program that the setprotoent_r()
1702 routine is available.
1704 d_setpwent (d_setpwent.U):
1705 This variable conditionally defines the HAS_SETPWENT symbol, which
1706 indicates to the C program that the setpwent() routine is available
1707 for initializing sequential access to the passwd database.
1709 d_setpwent_r (d_setpwent_r.U):
1710 This variable conditionally defines the HAS_SETPWENT_R symbol,
1711 which indicates to the C program that the setpwent_r()
1712 routine is available.
1714 d_setregid (d_setregid.U):
1715 This variable conditionally defines HAS_SETREGID if setregid() is
1716 available to change the real and effective gid of the current
1719 d_setresgid (d_setregid.U):
1720 This variable conditionally defines HAS_SETRESGID if setresgid() is
1721 available to change the real, effective and saved gid of the current
1724 d_setresuid (d_setreuid.U):
1725 This variable conditionally defines HAS_SETREUID if setresuid() is
1726 available to change the real, effective and saved uid of the current
1729 d_setreuid (d_setreuid.U):
1730 This variable conditionally defines HAS_SETREUID if setreuid() is
1731 available to change the real and effective uid of the current
1734 d_setrgid (d_setrgid.U):
1735 This variable conditionally defines the HAS_SETRGID symbol, which
1736 indicates to the C program that the setrgid() routine is available
1737 to change the real gid of the current program.
1739 d_setruid (d_setruid.U):
1740 This variable conditionally defines the HAS_SETRUID symbol, which
1741 indicates to the C program that the setruid() routine is available
1742 to change the real uid of the current program.
1744 d_setsent (d_setsent.U):
1745 This variable conditionally defines HAS_SETSERVENT if setservent() is
1748 d_setservent_r (d_setservent_r.U):
1749 This variable conditionally defines the HAS_SETSERVENT_R symbol,
1750 which indicates to the C program that the setservent_r()
1751 routine is available.
1753 d_setsid (d_setsid.U):
1754 This variable conditionally defines HAS_SETSID if setsid() is
1755 available to set the process group ID.
1757 d_setvbuf (d_setvbuf.U):
1758 This variable conditionally defines the HAS_SETVBUF symbol, which
1759 indicates to the C program that the setvbuf() routine is available
1760 to change buffering on an open stdio stream.
1763 This variable conditionally defines the USE_SFIO symbol,
1764 and indicates whether sfio is available (and should be used).
1767 This variable conditionally defines the HAS_SHM symbol, which
1768 indicates that the entire shm*(2) library is present.
1770 d_shmat (d_shmat.U):
1771 This variable conditionally defines the HAS_SHMAT symbol, which
1772 indicates to the C program that the shmat() routine is available.
1774 d_shmatprototype (d_shmat.U):
1775 This variable conditionally defines the HAS_SHMAT_PROTOTYPE
1776 symbol, which indicates that sys/shm.h has a prototype for
1779 d_shmctl (d_shmctl.U):
1780 This variable conditionally defines the HAS_SHMCTL symbol, which
1781 indicates to the C program that the shmctl() routine is available.
1783 d_shmdt (d_shmdt.U):
1784 This variable conditionally defines the HAS_SHMDT symbol, which
1785 indicates to the C program that the shmdt() routine is available.
1787 d_shmget (d_shmget.U):
1788 This variable conditionally defines the HAS_SHMGET symbol, which
1789 indicates to the C program that the shmget() routine is available.
1791 d_sigaction (d_sigaction.U):
1792 This variable conditionally defines the HAS_SIGACTION symbol, which
1793 indicates that the Vr4 sigaction() routine is available.
1795 d_sigprocmask (d_sigprocmask.U):
1796 This variable conditionally defines HAS_SIGPROCMASK
1797 if sigprocmask() is available to examine or change the signal mask
1798 of the calling process.
1800 d_sigsetjmp (d_sigsetjmp.U):
1801 This variable conditionally defines the HAS_SIGSETJMP symbol,
1802 which indicates that the sigsetjmp() routine is available to
1803 call setjmp() and optionally save the process's signal mask.
1805 d_sockatmark (d_sockatmark.U):
1806 This variable conditionally defines the HAS_SOCKATMARK symbol, which
1807 indicates to the C program that the sockatmark() routine is available.
1809 d_sockatmarkproto (d_sockatmarkproto.U):
1810 This variable conditionally defines the HAS_SOCKATMARK_PROTO symbol,
1811 which indicates to the C program that the system provides
1812 a prototype for the sockatmark() function. Otherwise, it is
1813 up to the program to supply one.
1815 d_socket (d_socket.U):
1816 This variable conditionally defines HAS_SOCKET, which indicates
1817 that the BSD socket interface is supported.
1819 d_socklen_t (d_socklen_t.U):
1820 This symbol will be defined if the C compiler supports socklen_t.
1822 d_sockpair (d_socket.U):
1823 This variable conditionally defines the HAS_SOCKETPAIR symbol, which
1824 indicates that the BSD socketpair() is supported.
1826 d_socks5_init (d_socks5_init.U):
1827 This variable conditionally defines the HAS_SOCKS5_INIT symbol, which
1828 indicates to the C program that the socks5_init() routine is available.
1830 d_sqrtl (d_sqrtl.U):
1831 This variable conditionally defines the HAS_SQRTL symbol, which
1832 indicates to the C program that the sqrtl() routine is available.
1834 d_srand48_r (d_srand48_r.U):
1835 This variable conditionally defines the HAS_SRAND48_R symbol,
1836 which indicates to the C program that the srand48_r()
1837 routine is available.
1839 d_srandom_r (d_srandom_r.U):
1840 This variable conditionally defines the HAS_SRANDOM_R symbol,
1841 which indicates to the C program that the srandom_r()
1842 routine is available.
1844 d_sresgproto (d_sresgproto.U):
1845 This variable conditionally defines the HAS_SETRESGID_PROTO symbol,
1846 which indicates to the C program that the system provides
1847 a prototype for the setresgid() function. Otherwise, it is
1848 up to the program to supply one.
1850 d_sresuproto (d_sresuproto.U):
1851 This variable conditionally defines the HAS_SETRESUID_PROTO symbol,
1852 which indicates to the C program that the system provides
1853 a prototype for the setresuid() function. Otherwise, it is
1854 up to the program to supply one.
1856 d_statblks (d_statblks.U):
1857 This variable conditionally defines USE_STAT_BLOCKS
1858 if this system has a stat structure declaring
1859 st_blksize and st_blocks.
1861 d_statfs_f_flags (d_statfs_f_flags.U):
1862 This variable conditionally defines the HAS_STRUCT_STATFS_F_FLAGS
1863 symbol, which indicates to struct statfs from has f_flags member.
1864 This kind of struct statfs is coming from sys/mount.h (BSD),
1865 not from sys/statfs.h (SYSV).
1867 d_statfs_s (d_statfs_s.U):
1868 This variable conditionally defines the HAS_STRUCT_STATFS symbol,
1869 which indicates that the struct statfs is supported.
1871 d_statvfs (d_statvfs.U):
1872 This variable conditionally defines the HAS_STATVFS symbol, which
1873 indicates to the C program that the statvfs() routine is available.
1875 d_stdio_cnt_lval (d_stdstdio.U):
1876 This variable conditionally defines STDIO_CNT_LVALUE if the
1877 FILE_cnt macro can be used as an lvalue.
1879 d_stdio_ptr_lval (d_stdstdio.U):
1880 This variable conditionally defines STDIO_PTR_LVALUE if the
1881 FILE_ptr macro can be used as an lvalue.
1883 d_stdio_ptr_lval_nochange_cnt (d_stdstdio.U):
1884 This symbol is defined if using the FILE_ptr macro as an lvalue
1885 to increase the pointer by n leaves File_cnt(fp) unchanged.
1887 d_stdio_ptr_lval_sets_cnt (d_stdstdio.U):
1888 This symbol is defined if using the FILE_ptr macro as an lvalue
1889 to increase the pointer by n has the side effect of decreasing the
1890 value of File_cnt(fp) by n.
1892 d_stdio_stream_array (stdio_streams.U):
1893 This variable tells whether there is an array holding
1896 d_stdiobase (d_stdstdio.U):
1897 This variable conditionally defines USE_STDIO_BASE if this system
1898 has a FILE structure declaring a usable _base field (or equivalent)
1901 d_stdstdio (d_stdstdio.U):
1902 This variable conditionally defines USE_STDIO_PTR if this system
1903 has a FILE structure declaring usable _ptr and _cnt fields (or
1904 equivalent) in stdio.h.
1906 d_strchr (d_strchr.U):
1907 This variable conditionally defines HAS_STRCHR if strchr() and
1908 strrchr() are available for string searching.
1910 d_strcoll (d_strcoll.U):
1911 This variable conditionally defines HAS_STRCOLL if strcoll() is
1912 available to compare strings using collating information.
1914 d_strctcpy (d_strctcpy.U):
1915 This variable conditionally defines the USE_STRUCT_COPY symbol, which
1916 indicates to the C program that this C compiler knows how to copy
1919 d_strerrm (d_strerror.U):
1920 This variable holds what Strerrr is defined as to translate an error
1921 code condition into an error message string. It could be 'strerror'
1922 or a more complex macro emulating strrror with sys_errlist[], or the
1923 "unknown" string when both strerror and sys_errlist are missing.
1925 d_strerror (d_strerror.U):
1926 This variable conditionally defines HAS_STRERROR if strerror() is
1927 available to translate error numbers to strings.
1929 d_strerror_r (d_strerror_r.U):
1930 This variable conditionally defines the HAS_STRERROR_R symbol,
1931 which indicates to the C program that the strerror_r()
1932 routine is available.
1934 d_strftime (d_strftime.U):
1935 This variable conditionally defines the HAS_STRFTIME symbol, which
1936 indicates to the C program that the strftime() routine is available.
1938 d_strtod (d_strtod.U):
1939 This variable conditionally defines the HAS_STRTOD symbol, which
1940 indicates to the C program that the strtod() routine is available
1941 to provide better numeric string conversion than atof().
1943 d_strtol (d_strtol.U):
1944 This variable conditionally defines the HAS_STRTOL symbol, which
1945 indicates to the C program that the strtol() routine is available
1946 to provide better numeric string conversion than atoi() and friends.
1948 d_strtold (d_strtold.U):
1949 This variable conditionally defines the HAS_STRTOLD symbol, which
1950 indicates to the C program that the strtold() routine is available.
1952 d_strtoll (d_strtoll.U):
1953 This variable conditionally defines the HAS_STRTOLL symbol, which
1954 indicates to the C program that the strtoll() routine is available.
1956 d_strtoq (d_strtoq.U):
1957 This variable conditionally defines the HAS_STRTOQ symbol, which
1958 indicates to the C program that the strtoq() routine is available.
1960 d_strtoul (d_strtoul.U):
1961 This variable conditionally defines the HAS_STRTOUL symbol, which
1962 indicates to the C program that the strtoul() routine is available
1963 to provide conversion of strings to unsigned long.
1965 d_strtoull (d_strtoull.U):
1966 This variable conditionally defines the HAS_STRTOULL symbol, which
1967 indicates to the C program that the strtoull() routine is available.
1969 d_strtouq (d_strtouq.U):
1970 This variable conditionally defines the HAS_STRTOUQ symbol, which
1971 indicates to the C program that the strtouq() routine is available.
1973 d_strxfrm (d_strxfrm.U):
1974 This variable conditionally defines HAS_STRXFRM if strxfrm() is
1975 available to transform strings.
1977 d_suidsafe (d_dosuid.U):
1978 This variable conditionally defines SETUID_SCRIPTS_ARE_SECURE_NOW
1979 if setuid scripts can be secure. This test looks in /dev/fd/.
1981 d_symlink (d_symlink.U):
1982 This variable conditionally defines the HAS_SYMLINK symbol, which
1983 indicates to the C program that the symlink() routine is available
1984 to create symbolic links.
1986 d_syscall (d_syscall.U):
1987 This variable conditionally defines HAS_SYSCALL if syscall() is
1988 available call arbitrary system calls.
1990 d_syscallproto (d_syscallproto.U):
1991 This variable conditionally defines the HAS_SYSCALL_PROTO symbol,
1992 which indicates to the C program that the system provides
1993 a prototype for the syscall() function. Otherwise, it is
1994 up to the program to supply one.
1996 d_sysconf (d_sysconf.U):
1997 This variable conditionally defines the HAS_SYSCONF symbol, which
1998 indicates to the C program that the sysconf() routine is available
1999 to determine system related limits and options.
2001 d_sysernlst (d_strerror.U):
2002 This variable conditionally defines HAS_SYS_ERRNOLIST if sys_errnolist[]
2003 is available to translate error numbers to the symbolic name.
2005 d_syserrlst (d_strerror.U):
2006 This variable conditionally defines HAS_SYS_ERRLIST if sys_errlist[] is
2007 available to translate error numbers to strings.
2009 d_system (d_system.U):
2010 This variable conditionally defines HAS_SYSTEM if system() is
2011 available to issue a shell command.
2013 d_tcgetpgrp (d_tcgtpgrp.U):
2014 This variable conditionally defines the HAS_TCGETPGRP symbol, which
2015 indicates to the C program that the tcgetpgrp() routine is available.
2016 to get foreground process group ID.
2018 d_tcsetpgrp (d_tcstpgrp.U):
2019 This variable conditionally defines the HAS_TCSETPGRP symbol, which
2020 indicates to the C program that the tcsetpgrp() routine is available
2021 to set foreground process group ID.
2023 d_telldir (d_readdir.U):
2024 This variable conditionally defines HAS_TELLDIR if telldir() is
2027 d_telldirproto (d_telldirproto.U):
2028 This variable conditionally defines the HAS_TELLDIR_PROTO symbol,
2029 which indicates to the C program that the system provides
2030 a prototype for the telldir() function. Otherwise, it is
2031 up to the program to supply one.
2034 This variable conditionally defines the HAS_TIME symbol, which indicates
2035 that the time() routine exists. The time() routine is normaly
2036 provided on UNIX systems.
2038 d_times (d_times.U):
2039 This variable conditionally defines the HAS_TIMES symbol, which indicates
2040 that the times() routine exists. The times() routine is normaly
2041 provided on UNIX systems. You may have to include <sys/times.h>.
2043 d_tm_tm_gmtoff (i_time.U):
2044 This variable conditionally defines HAS_TM_TM_GMTOFF, which indicates
2045 indicates to the C program that the struct tm has the tm_gmtoff field.
2047 d_tm_tm_zone (i_time.U):
2048 This variable conditionally defines HAS_TM_TM_ZONE, which indicates
2049 indicates to the C program that the struct tm has the tm_zone field.
2051 d_tmpnam_r (d_tmpnam_r.U):
2052 This variable conditionally defines the HAS_TMPNAM_R symbol,
2053 which indicates to the C program that the tmpnam_r()
2054 routine is available.
2056 d_truncate (d_truncate.U):
2057 This variable conditionally defines HAS_TRUNCATE if truncate() is
2058 available to truncate files.
2060 d_ttyname_r (d_ttyname_r.U):
2061 This variable conditionally defines the HAS_TTYNAME_R symbol,
2062 which indicates to the C program that the ttyname_r()
2063 routine is available.
2065 d_tzname (d_tzname.U):
2066 This variable conditionally defines HAS_TZNAME if tzname[] is
2067 available to access timezone names.
2069 d_u32align (d_u32align.U):
2070 This variable tells whether you must access character data
2071 through U32-aligned pointers.
2073 d_ualarm (d_ualarm.U):
2074 This variable conditionally defines the HAS_UALARM symbol, which
2075 indicates to the C program that the ualarm() routine is available.
2077 d_umask (d_umask.U):
2078 This variable conditionally defines the HAS_UMASK symbol, which
2079 indicates to the C program that the umask() routine is available.
2080 to set and get the value of the file creation mask.
2082 d_uname (d_gethname.U):
2083 This variable conditionally defines the HAS_UNAME symbol, which
2084 indicates to the C program that the uname() routine may be
2085 used to derive the host name.
2087 d_union_semun (d_union_semun.U):
2088 This variable conditionally defines HAS_UNION_SEMUN if the
2089 union semun is defined by including <sys/sem.h>.
2091 d_unordered (d_unordered.U):
2092 This variable conditionally defines the HAS_UNORDERED symbol, which
2093 indicates to the C program that the unordered() routine is available.
2095 d_usleep (d_usleep.U):
2096 This variable conditionally defines HAS_USLEEP if usleep() is
2097 available to do high granularity sleeps.
2099 d_usleepproto (d_usleepproto.U):
2100 This variable conditionally defines the HAS_USLEEP_PROTO symbol,
2101 which indicates to the C program that the system provides
2102 a prototype for the usleep() function. Otherwise, it is
2103 up to the program to supply one.
2105 d_ustat (d_ustat.U):
2106 This variable conditionally defines HAS_USTAT if ustat() is
2107 available to query file system statistics by dev_t.
2109 d_vendorarch (vendorarch.U):
2110 This variable conditionally defined PERL_VENDORARCH.
2112 d_vendorbin (vendorbin.U):
2113 This variable conditionally defines PERL_VENDORBIN.
2115 d_vendorlib (vendorlib.U):
2116 This variable conditionally defines PERL_VENDORLIB.
2118 d_vfork (d_vfork.U):
2119 This variable conditionally defines the HAS_VFORK symbol, which
2120 indicates the vfork() routine is available.
2122 d_void_closedir (d_closedir.U):
2123 This variable conditionally defines VOID_CLOSEDIR if closedir()
2124 does not return a value.
2126 d_voidsig (d_voidsig.U):
2127 This variable conditionally defines VOIDSIG if this system
2128 declares "void (*signal(...))()" in signal.h. The old way was to
2129 declare it as "int (*signal(...))()".
2131 d_voidtty (i_sysioctl.U):
2132 This variable conditionally defines USE_IOCNOTTY to indicate that the
2133 ioctl() call with TIOCNOTTY should be used to void tty association.
2134 Otherwise (on USG probably), it is enough to close the standard file
2135 decriptors and do a setpgrp().
2137 d_volatile (d_volatile.U):
2138 This variable conditionally defines the HASVOLATILE symbol, which
2139 indicates to the C program that this C compiler knows about the
2140 volatile declaration.
2142 d_vprintf (d_vprintf.U):
2143 This variable conditionally defines the HAS_VPRINTF symbol, which
2144 indicates to the C program that the vprintf() routine is available
2145 to printf with a pointer to an argument list.
2147 d_wait4 (d_wait4.U):
2148 This variable conditionally defines the HAS_WAIT4 symbol, which
2149 indicates the wait4() routine is available.
2151 d_waitpid (d_waitpid.U):
2152 This variable conditionally defines HAS_WAITPID if waitpid() is
2153 available to wait for child process.
2155 d_wcstombs (d_wcstombs.U):
2156 This variable conditionally defines the HAS_WCSTOMBS symbol, which
2157 indicates to the C program that the wcstombs() routine is available
2158 to convert wide character strings to multibyte strings.
2160 d_wctomb (d_wctomb.U):
2161 This variable conditionally defines the HAS_WCTOMB symbol, which
2162 indicates to the C program that the wctomb() routine is available
2163 to convert a wide character to a multibyte.
2165 d_writev (d_writev.U):
2166 This variable conditionally defines the HAS_WRITEV symbol, which
2167 indicates to the C program that the writev() routine is available.
2170 This variable conditionally defines the symbol XENIX, which alerts
2171 the C program that it runs under Xenix.
2174 This variable is used internally by Configure to determine the
2175 full pathname (if any) of the date program. After Configure runs,
2176 the value is reset to a plain "date" and is not useful.
2178 db_hashtype (i_db.U):
2179 This variable contains the type of the hash structure element
2180 in the <db.h> header file. In older versions of DB, it was
2181 int, while in newer ones it is u_int32_t.
2183 db_prefixtype (i_db.U):
2184 This variable contains the type of the prefix structure element
2185 in the <db.h> header file. In older versions of DB, it was
2186 int, while in newer ones it is size_t.
2188 db_version_major (i_db.U):
2189 This variable contains the major version number of
2190 Berkeley DB found in the <db.h> header file.
2192 db_version_minor (i_db.U):
2193 This variable contains the minor version number of
2194 Berkeley DB found in the <db.h> header file.
2195 For DB version 1 this is always 0.
2197 db_version_patch (i_db.U):
2198 This variable contains the patch version number of
2199 Berkeley DB found in the <db.h> header file.
2200 For DB version 1 this is always 0.
2202 defvoidused (voidflags.U):
2203 This variable contains the default value of the VOIDUSED symbol (15).
2205 direntrytype (i_dirent.U):
2206 This symbol is set to 'struct direct' or 'struct dirent' depending on
2207 whether dirent is available or not. You should use this pseudo type to
2208 portably declare your directory entries.
2211 This variable contains the extension that is to be used for the
2212 dynamically loaded modules that perl generaties.
2215 This variable contains the name of the dynamic loading file that
2216 will be used with the package.
2218 doublesize (doublesize.U):
2219 This variable contains the value of the DOUBLESIZE symbol, which
2220 indicates to the C program how many bytes there are in a double.
2222 drand01 (randfunc.U):
2223 Indicates the macro to be used to generate normalized
2224 random numbers. Uses randfunc, often divided by
2225 (double) (((unsigned long) 1 << randbits)) in order to
2226 normalize the result.
2227 In C programs, the macro 'Drand01' is mapped to drand01.
2229 drand48_r_proto (d_drand48_r.U):
2230 This variable encodes the prototype of drand48_r.
2231 It is zero if d_drand48_r is undef, and one of the
2232 REENTRANT_PROTO_T_ABC macros of reentr.h if d_drand48_r
2235 dynamic_ext (Extensions.U):
2236 This variable holds a list of XS extension files we want to
2237 link dynamically into the package. It is used by Makefile.
2239 eagain (nblock_io.U):
2240 This variable bears the symbolic errno code set by read() when no
2241 data is present on the file and non-blocking I/O was enabled (otherwise,
2242 read() blocks naturally).
2245 This variable conditionally defines EBCDIC if this
2246 system uses EBCDIC encoding. Among other things, this
2247 means that the character ranges are not contiguous.
2251 This variable is used internally by Configure to determine the
2252 full pathname (if any) of the echo program. After Configure runs,
2253 the value is reset to a plain "echo" and is not useful.
2256 This variable is used internally by Configure to determine the
2257 full pathname (if any) of the egrep program. After Configure runs,
2258 the value is reset to a plain "egrep" and is not useful.
2261 This variable is defined but not used by Configure.
2262 The value is a plain '' and is not useful.
2264 endgrent_r_proto (d_endgrent_r.U):
2265 This variable encodes the prototype of endgrent_r.
2266 It is zero if d_endgrent_r is undef, and one of the
2267 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endgrent_r
2270 endhostent_r_proto (d_endhostent_r.U):
2271 This variable encodes the prototype of endhostent_r.
2272 It is zero if d_endhostent_r is undef, and one of the
2273 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endhostent_r
2276 endnetent_r_proto (d_endnetent_r.U):
2277 This variable encodes the prototype of endnetent_r.
2278 It is zero if d_endnetent_r is undef, and one of the
2279 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endnetent_r
2282 endprotoent_r_proto (d_endprotoent_r.U):
2283 This variable encodes the prototype of endprotoent_r.
2284 It is zero if d_endprotoent_r is undef, and one of the
2285 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endprotoent_r
2288 endpwent_r_proto (d_endpwent_r.U):
2289 This variable encodes the prototype of endpwent_r.
2290 It is zero if d_endpwent_r is undef, and one of the
2291 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endpwent_r
2294 endservent_r_proto (d_endservent_r.U):
2295 This variable encodes the prototype of endservent_r.
2296 It is zero if d_endservent_r is undef, and one of the
2297 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endservent_r
2301 When running under Eunice this variable contains a command which will
2302 convert a shell script to the proper form of text file for it to be
2303 executable by the shell. On other systems it is a no-op.
2306 This is an old synonym for _exe.
2309 This variable is used internally by Configure to determine the
2310 full pathname (if any) of the expr program. After Configure runs,
2311 the value is reset to a plain "expr" and is not useful.
2313 extensions (Extensions.U):
2314 This variable holds a list of all extension files (both XS and
2315 non-xs linked into the package. It is propagated to Config.pm
2316 and is typically used to test whether a particular extesion
2320 This variable holds a list of extra modules to install.
2322 fflushall (fflushall.U):
2323 This symbol, if defined, tells that to flush
2324 all pending stdio output one must loop through all
2325 the stdio file handles stored in an array and fflush them.
2326 Note that if fflushNULL is defined, fflushall will not
2327 even be probed for and will be left undefined.
2329 fflushNULL (fflushall.U):
2330 This symbol, if defined, tells that fflush(NULL) does flush
2331 all pending stdio output.
2334 This variable is defined but not used by Configure.
2335 The value is a plain '' and is not useful.
2337 firstmakefile (Unix.U):
2338 This variable defines the first file searched by make. On unix,
2339 it is makefile (then Makefile). On case-insensitive systems,
2340 it might be something else. This is only used to deal with
2341 convoluted make depend tricks.
2344 This variable is defined but not used by Configure.
2345 The value is a plain '' and is not useful.
2347 fpossize (fpossize.U):
2348 This variable contains the size of a fpostype in bytes.
2350 fpostype (fpostype.U):
2351 This variable defines Fpos_t to be something like fpos_t, long,
2352 uint, or whatever type is used to declare file positions in libc.
2354 freetype (mallocsrc.U):
2355 This variable contains the return type of free(). It is usually
2356 void, but occasionally int.
2359 This variable contains the command used by Configure
2360 to copy files from the target host. Useful and available
2361 only during Perl build.
2362 The string ':' if not cross-compiling.
2365 This variable contains the full pathname to 'ar', whether or
2366 not the user has specified 'portability'. This is only used
2370 This variable contains the full pathname to 'csh', whether or
2371 not the user has specified 'portability'. This is only used
2372 in the compiled C program, and we assume that all systems which
2373 can share this executable will have the same full pathname to
2376 full_sed (Loc_sed.U):
2377 This variable contains the full pathname to 'sed', whether or
2378 not the user has specified 'portability'. This is only used
2379 in the compiled C program, and we assume that all systems which
2380 can share this executable will have the same full pathname to
2383 gccosandvers (gccvers.U):
2384 If GNU cc (gcc) is used, this variable the operating system and
2385 version used to compile the gcc. It is set to '' if not gcc,
2386 or if nothing useful can be parsed as the os version.
2388 gccversion (gccvers.U):
2389 If GNU cc (gcc) is used, this variable holds '1' or '2' to
2390 indicate whether the compiler is version 1 or 2. This is used in
2391 setting some of the default cflags. It is set to '' if not gcc.
2393 getgrent_r_proto (d_getgrent_r.U):
2394 This variable encodes the prototype of getgrent_r.
2395 It is zero if d_getgrent_r is undef, and one of the
2396 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrent_r
2399 getgrgid_r_proto (d_getgrgid_r.U):
2400 This variable encodes the prototype of getgrgid_r.
2401 It is zero if d_getgrgid_r is undef, and one of the
2402 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrgid_r
2405 getgrnam_r_proto (d_getgrnam_r.U):
2406 This variable encodes the prototype of getgrnam_r.
2407 It is zero if d_getgrnam_r is undef, and one of the
2408 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrnam_r
2411 gethostbyaddr_r_proto (d_gethostbyaddr_r.U):
2412 This variable encodes the prototype of gethostbyaddr_r.
2413 It is zero if d_gethostbyaddr_r is undef, and one of the
2414 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyaddr_r
2417 gethostbyname_r_proto (d_gethostbyname_r.U):
2418 This variable encodes the prototype of gethostbyname_r.
2419 It is zero if d_gethostbyname_r is undef, and one of the
2420 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyname_r
2423 gethostent_r_proto (d_gethostent_r.U):
2424 This variable encodes the prototype of gethostent_r.
2425 It is zero if d_gethostent_r is undef, and one of the
2426 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostent_r
2429 getlogin_r_proto (d_getlogin_r.U):
2430 This variable encodes the prototype of getlogin_r.
2431 It is zero if d_getlogin_r is undef, and one of the
2432 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getlogin_r
2435 getnetbyaddr_r_proto (d_getnetbyaddr_r.U):
2436 This variable encodes the prototype of getnetbyaddr_r.
2437 It is zero if d_getnetbyaddr_r is undef, and one of the
2438 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyaddr_r
2441 getnetbyname_r_proto (d_getnetbyname_r.U):
2442 This variable encodes the prototype of getnetbyname_r.
2443 It is zero if d_getnetbyname_r is undef, and one of the
2444 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyname_r
2447 getnetent_r_proto (d_getnetent_r.U):
2448 This variable encodes the prototype of getnetent_r.
2449 It is zero if d_getnetent_r is undef, and one of the
2450 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetent_r
2453 getprotobyname_r_proto (d_getprotobyname_r.U):
2454 This variable encodes the prototype of getprotobyname_r.
2455 It is zero if d_getprotobyname_r is undef, and one of the
2456 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobyname_r
2459 getprotobynumber_r_proto (d_getprotobynumber_r.U):
2460 This variable encodes the prototype of getprotobynumber_r.
2461 It is zero if d_getprotobynumber_r is undef, and one of the
2462 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobynumber_r
2465 getprotoent_r_proto (d_getprotoent_r.U):
2466 This variable encodes the prototype of getprotoent_r.
2467 It is zero if d_getprotoent_r is undef, and one of the
2468 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotoent_r
2471 getpwent_r_proto (d_getpwent_r.U):
2472 This variable encodes the prototype of getpwent_r.
2473 It is zero if d_getpwent_r is undef, and one of the
2474 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwent_r
2477 getpwnam_r_proto (d_getpwnam_r.U):
2478 This variable encodes the prototype of getpwnam_r.
2479 It is zero if d_getpwnam_r is undef, and one of the
2480 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwnam_r
2483 getpwuid_r_proto (d_getpwuid_r.U):
2484 This variable encodes the prototype of getpwuid_r.
2485 It is zero if d_getpwuid_r is undef, and one of the
2486 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwuid_r
2489 getservbyname_r_proto (d_getservbyname_r.U):
2490 This variable encodes the prototype of getservbyname_r.
2491 It is zero if d_getservbyname_r is undef, and one of the
2492 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyname_r
2495 getservbyport_r_proto (d_getservbyport_r.U):
2496 This variable encodes the prototype of getservbyport_r.
2497 It is zero if d_getservbyport_r is undef, and one of the
2498 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyport_r
2501 getservent_r_proto (d_getservent_r.U):
2502 This variable encodes the prototype of getservent_r.
2503 It is zero if d_getservent_r is undef, and one of the
2504 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservent_r
2507 getspnam_r_proto (d_getspnam_r.U):
2508 This variable encodes the prototype of getspnam_r.
2509 It is zero if d_getspnam_r is undef, and one of the
2510 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getspnam_r
2514 This variable contains the format string used for printing a Gid_t.
2516 gidsign (gidsign.U):
2517 This variable contains the signedness of a gidtype.
2518 1 for unsigned, -1 for signed.
2520 gidsize (gidsize.U):
2521 This variable contains the size of a gidtype in bytes.
2523 gidtype (gidtype.U):
2524 This variable defines Gid_t to be something like gid_t, int,
2525 ushort, or whatever type is used to declare the return type
2526 of getgid(). Typically, it is the type of group ids in the kernel.
2529 This variable holds the general path (space-separated) used to
2530 find libraries. It may contain directories that do not exist on
2531 this platform, libpth is the cleaned-up version.
2534 This variable is used internally by Configure to determine the
2535 full pathname (if any) of the gmake program. After Configure runs,
2536 the value is reset to a plain "gmake" and is not useful.
2538 gmtime_r_proto (d_gmtime_r.U):
2539 This variable encodes the prototype of gmtime_r.
2540 It is zero if d_gmtime_r is undef, and one of the
2541 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gmtime_r
2544 gnulibc_version (d_gnulibc.U):
2545 This variable contains the version number of the GNU C library.
2546 It is usually something like '2.2.5'. It is a plain '' if this
2547 is not the GNU C library, or if the version is unknown.
2550 This variable is used internally by Configure to determine the
2551 full pathname (if any) of the grep program. After Configure runs,
2552 the value is reset to a plain "grep" and is not useful.
2555 This variable contains a command that produces the text of the
2556 /etc/group file. This is normally "cat /etc/group", but can be
2557 "ypcat group" when NIS is used.
2558 On some systems, such as os390, there may be no equivalent
2559 command, in which case this variable is unset.
2561 groupstype (groupstype.U):
2562 This variable defines Groups_t to be something like gid_t, int,
2563 ushort, or whatever type is used for the second argument to
2564 getgroups() and setgroups(). Usually, this is the same as
2565 gidtype (gid_t), but sometimes it isn't.
2568 This variable is used internally by Configure to determine the
2569 full pathname (if any) of the gzip program. After Configure runs,
2570 the value is reset to a plain "gzip" and is not useful.
2572 h_fcntl (h_fcntl.U):
2573 This is variable gets set in various places to tell i_fcntl that
2574 <fcntl.h> should be included.
2576 h_sysfile (h_sysfile.U):
2577 This is variable gets set in various places to tell i_sys_file that
2578 <sys/file.h> should be included.
2581 Gives the type of hints used for previous answers. May be one of
2582 "default", "recommended" or "previous".
2585 This variable contains a command that produces the text of the
2586 /etc/hosts file. This is normally "cat /etc/hosts", but can be
2587 "ypcat hosts" when NIS is used.
2588 On some systems, such as os390, there may be no equivalent
2589 command, in which case this variable is unset.
2592 This variable is the size of an I16 in bytes.
2595 This variable contains the C type used for Perl's I16.
2598 This variable is the size of an I32 in bytes.
2601 This variable contains the C type used for Perl's I32.
2604 This variable is the size of an I64 in bytes.
2607 This variable contains the C type used for Perl's I64.
2610 This variable is the size of an I8 in bytes.
2613 This variable contains the C type used for Perl's I8.
2615 i_arpainet (i_arpainet.U):
2616 This variable conditionally defines the I_ARPA_INET symbol,
2617 and indicates whether a C program should include <arpa/inet.h>.
2619 i_bsdioctl (i_sysioctl.U):
2620 This variable conditionally defines the I_SYS_BSDIOCTL symbol, which
2621 indicates to the C program that <sys/bsdioctl.h> exists and should
2624 i_crypt (i_crypt.U):
2625 This variable conditionally defines the I_CRYPT symbol, and indicates
2626 whether a C program should include <crypt.h>.
2629 This variable conditionally defines the I_DB symbol, and indicates
2630 whether a C program may include Berkeley's DB include file <db.h>.
2633 This variable conditionally defines the I_DBM symbol, which
2634 indicates to the C program that <dbm.h> exists and should
2637 i_dirent (i_dirent.U):
2638 This variable conditionally defines I_DIRENT, which indicates
2639 to the C program that it should include <dirent.h>.
2642 This variable conditionally defines the I_DLD symbol, which
2643 indicates to the C program that <dld.h> (GNU dynamic loading)
2644 exists and should be included.
2646 i_dlfcn (i_dlfcn.U):
2647 This variable conditionally defines the I_DLFCN symbol, which
2648 indicates to the C program that <dlfcn.h> exists and should
2651 i_fcntl (i_fcntl.U):
2652 This variable controls the value of I_FCNTL (which tells
2653 the C program to include <fcntl.h>).
2655 i_float (i_float.U):
2656 This variable conditionally defines the I_FLOAT symbol, and indicates
2657 whether a C program may include <float.h> to get symbols like DBL_MAX
2658 or DBL_MIN, i.e. machine dependent floating point values.
2661 This variable conditionally defines the I_FP symbol, and indicates
2662 whether a C program should include <fp.h>.
2664 i_fp_class (i_fp_class.U):
2665 This variable conditionally defines the I_FP_CLASS symbol, and indicates
2666 whether a C program should include <fp_class.h>.
2669 This variable conditionally defines the I_GDBM symbol, which
2670 indicates to the C program that <gdbm.h> exists and should
2674 This variable conditionally defines the I_GRP symbol, and indicates
2675 whether a C program should include <grp.h>.
2677 i_ieeefp (i_ieeefp.U):
2678 This variable conditionally defines the I_IEEEFP symbol, and indicates
2679 whether a C program should include <ieeefp.h>.
2681 i_inttypes (i_inttypes.U):
2682 This variable conditionally defines the I_INTTYPES symbol,
2683 and indicates whether a C program should include <inttypes.h>.
2685 i_langinfo (i_langinfo.U):
2686 This variable conditionally defines the I_LANGINFO symbol,
2687 and indicates whether a C program should include <langinfo.h>.
2689 i_libutil (i_libutil.U):
2690 This variable conditionally defines the I_LIBUTIL symbol, and indicates
2691 whether a C program should include <libutil.h>.
2693 i_limits (i_limits.U):
2694 This variable conditionally defines the I_LIMITS symbol, and indicates
2695 whether a C program may include <limits.h> to get symbols like WORD_BIT
2698 i_locale (i_locale.U):
2699 This variable conditionally defines the I_LOCALE symbol,
2700 and indicates whether a C program should include <locale.h>.
2702 i_machcthr (i_machcthr.U):
2703 This variable conditionally defines the I_MACH_CTHREADS symbol,
2704 and indicates whether a C program should include <mach/cthreads.h>.
2706 i_malloc (i_malloc.U):
2707 This variable conditionally defines the I_MALLOC symbol, and indicates
2708 whether a C program should include <malloc.h>.
2711 This variable conditionally defines the I_MATH symbol, and indicates
2712 whether a C program may include <math.h>.
2714 i_memory (i_memory.U):
2715 This variable conditionally defines the I_MEMORY symbol, and indicates
2716 whether a C program should include <memory.h>.
2718 i_mntent (i_mntent.U):
2719 This variable conditionally defines the I_MNTENT symbol, and indicates
2720 whether a C program should include <mntent.h>.
2723 This variable conditionally defines the I_NDBM symbol, which
2724 indicates to the C program that <ndbm.h> exists and should
2727 i_netdb (i_netdb.U):
2728 This variable conditionally defines the I_NETDB symbol, and indicates
2729 whether a C program should include <netdb.h>.
2731 i_neterrno (i_neterrno.U):
2732 This variable conditionally defines the I_NET_ERRNO symbol, which
2733 indicates to the C program that <net/errno.h> exists and should
2736 i_netinettcp (i_netinettcp.U):
2737 This variable conditionally defines the I_NETINET_TCP symbol,
2738 and indicates whether a C program should include <netinet/tcp.h>.
2741 This variable conditionally defines I_NETINET_IN, which indicates
2742 to the C program that it should include <netinet/in.h>. Otherwise,
2743 you may try <sys/in.h>.
2746 This variable conditionally defines the I_POLL symbol, and indicates
2747 whether a C program should include <poll.h>.
2750 This variable conditionally defines the I_PROT symbol, and indicates
2751 whether a C program should include <prot.h>.
2753 i_pthread (i_pthread.U):
2754 This variable conditionally defines the I_PTHREAD symbol,
2755 and indicates whether a C program should include <pthread.h>.
2758 This variable conditionally defines I_PWD, which indicates
2759 to the C program that it should include <pwd.h>.
2761 i_rpcsvcdbm (i_dbm.U):
2762 This variable conditionally defines the I_RPCSVC_DBM symbol, which
2763 indicates to the C program that <rpcsvc/dbm.h> exists and should
2764 be included. Some System V systems might need this instead of <dbm.h>.
2767 This variable conditionally defines the I_SFIO symbol,
2768 and indicates whether a C program should include <sfio.h>.
2770 i_sgtty (i_termio.U):
2771 This variable conditionally defines the I_SGTTY symbol, which
2772 indicates to the C program that it should include <sgtty.h> rather
2775 i_shadow (i_shadow.U):
2776 This variable conditionally defines the I_SHADOW symbol, and indicates
2777 whether a C program should include <shadow.h>.
2779 i_socks (i_socks.U):
2780 This variable conditionally defines the I_SOCKS symbol, and indicates
2781 whether a C program should include <socks.h>.
2783 i_stdarg (i_varhdr.U):
2784 This variable conditionally defines the I_STDARG symbol, which
2785 indicates to the C program that <stdarg.h> exists and should
2788 i_stddef (i_stddef.U):
2789 This variable conditionally defines the I_STDDEF symbol, which
2790 indicates to the C program that <stddef.h> exists and should
2793 i_stdlib (i_stdlib.U):
2794 This variable conditionally defines the I_STDLIB symbol, which
2795 indicates to the C program that <stdlib.h> exists and should
2798 i_string (i_string.U):
2799 This variable conditionally defines the I_STRING symbol, which
2800 indicates that <string.h> should be included rather than <strings.h>.
2802 i_sunmath (i_sunmath.U):
2803 This variable conditionally defines the I_SUNMATH symbol, and indicates
2804 whether a C program should include <sunmath.h>.
2806 i_sysaccess (i_sysaccess.U):
2807 This variable conditionally defines the I_SYS_ACCESS symbol,
2808 and indicates whether a C program should include <sys/access.h>.
2810 i_sysdir (i_sysdir.U):
2811 This variable conditionally defines the I_SYS_DIR symbol, and indicates
2812 whether a C program should include <sys/dir.h>.
2814 i_sysfile (i_sysfile.U):
2815 This variable conditionally defines the I_SYS_FILE symbol, and indicates
2816 whether a C program should include <sys/file.h> to get R_OK and friends.
2818 i_sysfilio (i_sysioctl.U):
2819 This variable conditionally defines the I_SYS_FILIO symbol, which
2820 indicates to the C program that <sys/filio.h> exists and should
2821 be included in preference to <sys/ioctl.h>.
2824 This variable conditionally defines I_SYS_IN, which indicates
2825 to the C program that it should include <sys/in.h> instead of
2828 i_sysioctl (i_sysioctl.U):
2829 This variable conditionally defines the I_SYS_IOCTL symbol, which
2830 indicates to the C program that <sys/ioctl.h> exists and should
2833 i_syslog (i_syslog.U):
2834 This variable conditionally defines the I_SYSLOG symbol,
2835 and indicates whether a C program should include <syslog.h>.
2837 i_sysmman (i_sysmman.U):
2838 This variable conditionally defines the I_SYS_MMAN symbol, and
2839 indicates whether a C program should include <sys/mman.h>.
2841 i_sysmode (i_sysmode.U):
2842 This variable conditionally defines the I_SYSMODE symbol,
2843 and indicates whether a C program should include <sys/mode.h>.
2845 i_sysmount (i_sysmount.U):
2846 This variable conditionally defines the I_SYSMOUNT symbol,
2847 and indicates whether a C program should include <sys/mount.h>.
2849 i_sysndir (i_sysndir.U):
2850 This variable conditionally defines the I_SYS_NDIR symbol, and indicates
2851 whether a C program should include <sys/ndir.h>.
2853 i_sysparam (i_sysparam.U):
2854 This variable conditionally defines the I_SYS_PARAM symbol, and indicates
2855 whether a C program should include <sys/param.h>.
2857 i_sysresrc (i_sysresrc.U):
2858 This variable conditionally defines the I_SYS_RESOURCE symbol,
2859 and indicates whether a C program should include <sys/resource.h>.
2861 i_syssecrt (i_syssecrt.U):
2862 This variable conditionally defines the I_SYS_SECURITY symbol,
2863 and indicates whether a C program should include <sys/security.h>.
2865 i_sysselct (i_sysselct.U):
2866 This variable conditionally defines I_SYS_SELECT, which indicates
2867 to the C program that it should include <sys/select.h> in order to
2868 get the definition of struct timeval.
2870 i_syssockio (i_sysioctl.U):
2871 This variable conditionally defines I_SYS_SOCKIO to indicate to the
2872 C program that socket ioctl codes may be found in <sys/sockio.h>
2873 instead of <sys/ioctl.h>.
2875 i_sysstat (i_sysstat.U):
2876 This variable conditionally defines the I_SYS_STAT symbol,
2877 and indicates whether a C program should include <sys/stat.h>.
2879 i_sysstatfs (i_sysstatfs.U):
2880 This variable conditionally defines the I_SYSSTATFS symbol,
2881 and indicates whether a C program should include <sys/statfs.h>.
2883 i_sysstatvfs (i_sysstatvfs.U):
2884 This variable conditionally defines the I_SYSSTATVFS symbol,
2885 and indicates whether a C program should include <sys/statvfs.h>.
2887 i_systime (i_time.U):
2888 This variable conditionally defines I_SYS_TIME, which indicates
2889 to the C program that it should include <sys/time.h>.
2891 i_systimek (i_time.U):
2892 This variable conditionally defines I_SYS_TIME_KERNEL, which
2893 indicates to the C program that it should include <sys/time.h>
2894 with KERNEL defined.
2896 i_systimes (i_systimes.U):
2897 This variable conditionally defines the I_SYS_TIMES symbol, and indicates
2898 whether a C program should include <sys/times.h>.
2900 i_systypes (i_systypes.U):
2901 This variable conditionally defines the I_SYS_TYPES symbol,
2902 and indicates whether a C program should include <sys/types.h>.
2904 i_sysuio (i_sysuio.U):
2905 This variable conditionally defines the I_SYSUIO symbol, and indicates
2906 whether a C program should include <sys/uio.h>.
2908 i_sysun (i_sysun.U):
2909 This variable conditionally defines I_SYS_UN, which indicates
2910 to the C program that it should include <sys/un.h> to get UNIX
2911 domain socket definitions.
2913 i_sysutsname (i_sysutsname.U):
2914 This variable conditionally defines the I_SYSUTSNAME symbol,
2915 and indicates whether a C program should include <sys/utsname.h>.
2917 i_sysvfs (i_sysvfs.U):
2918 This variable conditionally defines the I_SYSVFS symbol,
2919 and indicates whether a C program should include <sys/vfs.h>.
2921 i_syswait (i_syswait.U):
2922 This variable conditionally defines I_SYS_WAIT, which indicates
2923 to the C program that it should include <sys/wait.h>.
2925 i_termio (i_termio.U):
2926 This variable conditionally defines the I_TERMIO symbol, which
2927 indicates to the C program that it should include <termio.h> rather
2930 i_termios (i_termio.U):
2931 This variable conditionally defines the I_TERMIOS symbol, which
2932 indicates to the C program that the POSIX <termios.h> file is
2936 This variable conditionally defines I_TIME, which indicates
2937 to the C program that it should include <time.h>.
2939 i_unistd (i_unistd.U):
2940 This variable conditionally defines the I_UNISTD symbol, and indicates
2941 whether a C program should include <unistd.h>.
2943 i_ustat (i_ustat.U):
2944 This variable conditionally defines the I_USTAT symbol, and indicates
2945 whether a C program should include <ustat.h>.
2947 i_utime (i_utime.U):
2948 This variable conditionally defines the I_UTIME symbol, and indicates
2949 whether a C program should include <utime.h>.
2951 i_values (i_values.U):
2952 This variable conditionally defines the I_VALUES symbol, and indicates
2953 whether a C program may include <values.h> to get symbols like MAXLONG
2956 i_varargs (i_varhdr.U):
2957 This variable conditionally defines I_VARARGS, which indicates
2958 to the C program that it should include <varargs.h>.
2960 i_varhdr (i_varhdr.U):
2961 Contains the name of the header to be included to get va_dcl definition.
2962 Typically one of varargs.h or stdarg.h.
2964 i_vfork (i_vfork.U):
2965 This variable conditionally defines the I_VFORK symbol, and indicates
2966 whether a C program should include vfork.h.
2968 ignore_versioned_solibs (libs.U):
2969 This variable should be non-empty if non-versioned shared
2970 libraries (libfoo.so.x.y) are to be ignored (because they
2971 cannot be linked against).
2973 inc_version_list (inc_version_list.U):
2974 This variable specifies the list of subdirectories in over
2975 which perl.c:incpush() and lib/lib.pm will automatically
2976 search when adding directories to @INC. The elements in
2977 the list are separated by spaces. This is only useful
2978 if you have a perl library directory tree structured like the
2979 default one. See INSTALL for how this works. The versioned
2980 site_perl directory was introduced in 5.005, so that is the
2981 lowest possible value.
2983 inc_version_list_init (inc_version_list.U):
2984 This variable holds the same list as inc_version_list, but
2985 each item is enclosed in double quotes and separated by commas,
2986 suitable for use in the PERL_INC_VERSION_LIST initialization.
2989 This variable must preceed the normal include path to get hte
2990 right one, as in "$incpath/usr/include" or "$incpath/usr/lib".
2991 Value can be "" or "/bsd43" on mips.
2994 This variable is defined but not used by Configure.
2995 The value is a plain '' and is not useful.
2997 installarchlib (archlib.U):
2998 This variable is really the same as archlibexp but may differ on
2999 those systems using AFS. For extra portability, only this variable
3000 should be used in makefiles.
3003 This variable is the same as binexp unless AFS is running in which case
3004 the user is explicitely prompted for it. This variable should always
3005 be used in your makefiles for maximum portability.
3007 installman1dir (man1dir.U):
3008 This variable is really the same as man1direxp, unless you are using
3009 AFS in which case it points to the read/write location whereas
3010 man1direxp only points to the read-only access location. For extra
3011 portability, you should only use this variable within your makefiles.
3013 installman3dir (man3dir.U):
3014 This variable is really the same as man3direxp, unless you are using
3015 AFS in which case it points to the read/write location whereas
3016 man3direxp only points to the read-only access location. For extra
3017 portability, you should only use this variable within your makefiles.
3019 installprefix (installprefix.U):
3020 This variable holds the name of the directory below which
3021 "make install" will install the package. For most users, this
3022 is the same as prefix. However, it is useful for
3023 installing the software into a different (usually temporary)
3024 location after which it can be bundled up and moved somehow
3025 to the final location specified by prefix.
3027 installprefixexp (installprefix.U):
3028 This variable holds the full absolute path of installprefix
3029 with all ~-expansion done.
3031 installprivlib (privlib.U):
3032 This variable is really the same as privlibexp but may differ on
3033 those systems using AFS. For extra portability, only this variable
3034 should be used in makefiles.
3036 installscript (scriptdir.U):
3037 This variable is usually the same as scriptdirexp, unless you are on
3038 a system running AFS, in which case they may differ slightly. You
3039 should always use this variable within your makefiles for portability.
3041 installsitearch (sitearch.U):
3042 This variable is really the same as sitearchexp but may differ on
3043 those systems using AFS. For extra portability, only this variable
3044 should be used in makefiles.
3046 installsitebin (sitebin.U):
3047 This variable is usually the same as sitebinexp, unless you are on
3048 a system running AFS, in which case they may differ slightly. You
3049 should always use this variable within your makefiles for portability.
3051 installsitelib (sitelib.U):
3052 This variable is really the same as sitelibexp but may differ on
3053 those systems using AFS. For extra portability, only this variable
3054 should be used in makefiles.
3056 installstyle (installstyle.U):
3057 This variable describes the "style" of the perl installation.
3058 This is intended to be useful for tools that need to
3059 manipulate entire perl distributions. Perl itself doesn't use
3060 this to find its libraries -- the library directories are
3061 stored directly in Config.pm. Currently, there are only two
3062 styles: "lib" and "lib/perl5". The default library locations
3063 (e.g. privlib, sitelib) are either $prefix/lib or
3064 $prefix/lib/perl5. The former is useful if $prefix is a
3065 directory dedicated to perl (e.g. /opt/perl), while the latter
3066 is useful if $prefix is shared by many packages, e.g. if
3068 This may later be extended to include other information, so
3069 be careful with pattern-matching on the results.
3070 For compatibility with perl5.005 and earlier, the default
3071 setting is based on whether or not $prefix contains the string
3074 installusrbinperl (instubperl.U):
3075 This variable tells whether Perl should be installed also as
3076 /usr/bin/perl in addition to
3079 installvendorarch (vendorarch.U):
3080 This variable is really the same as vendorarchexp but may differ on
3081 those systems using AFS. For extra portability, only this variable
3082 should be used in makefiles.
3084 installvendorbin (vendorbin.U):
3085 This variable is really the same as vendorbinexp but may differ on
3086 those systems using AFS. For extra portability, only this variable
3087 should be used in makefiles.
3089 installvendorlib (vendorlib.U):
3090 This variable is really the same as vendorlibexp but may differ on
3091 those systems using AFS. For extra portability, only this variable
3092 should be used in makefiles.
3094 intsize (intsize.U):
3095 This variable contains the value of the INTSIZE symbol, which
3096 indicates to the C program how many bytes there are in an int.
3098 issymlink (issymlink.U):
3099 This variable holds the test command to test for a symbolic link
3100 (if they are supported). Typical values include 'test -h' and
3103 ivdformat (perlxvf.U):
3104 This variable contains the format string used for printing
3105 a Perl IV as a signed decimal integer.
3108 This variable is the size of an IV in bytes.
3111 This variable contains the C type used for Perl's IV.
3113 known_extensions (Extensions.U):
3114 This variable holds a list of all XS extensions included in
3118 This variable is defined but not used by Configure.
3119 The value is a plain '' and is not useful.
3122 This variable indicates the program to be used to link
3123 libraries for dynamic loading. On some systems, it is 'ld'.
3124 On ELF systems, it should be $cc. Mostly, we'll try to respect
3125 the hint file setting.
3127 lddlflags (dlsrc.U):
3128 This variable contains any special flags that might need to be
3129 passed to $ld to create a shared library suitable for dynamic
3130 loading. It is up to the makefile to use it. For hpux, it
3131 should be '-b'. For sunos 4.1, it is empty.
3133 ldflags (ccflags.U):
3134 This variable contains any additional C loader flags desired by
3135 the user. It is up to the Makefile to use this.
3137 ldflags_uselargefiles (uselfs.U):
3138 This variable contains the loader flags needed by large file builds
3139 and added to ldflags by hints files.
3141 ldlibpthname (libperl.U):
3142 This variable holds the name of the shared library
3143 search path, often LD_LIBRARY_PATH. To get an empty
3144 string, the hints file must set this to 'none'.
3147 This variable is used internally by Configure to determine the
3148 full pathname (if any) of the less program. After Configure runs,
3149 the value is reset to a plain "less" and is not useful.
3152 This is an old synonym for _a.
3155 This variable contains the location of the C library.
3157 libperl (libperl.U):
3158 The perl executable is obtained by linking perlmain.c with
3159 libperl, any static extensions (usually just DynaLoader),
3160 and any other libraries needed on this system. libperl
3161 is usually libperl.a, but can also be libperl.so.xxx if
3162 the user wishes to build a perl executable with a shared
3166 This variable holds the general path (space-separated) used to find
3167 libraries. It is intended to be used by other units.
3170 This variable holds the additional libraries we want to use.
3171 It is up to the Makefile to deal with it. The list can be empty.
3174 This variable holds the directory names aka dirnames of the libraries
3175 we found and accepted, duplicates are removed.
3178 This variable holds the filenames aka basenames of the libraries
3179 we found and accepted.
3182 This variable holds the full pathnames of the libraries
3183 we found and accepted.
3186 This variable holds the directory names probed for libraries.
3188 libswanted (Myinit.U):
3189 This variable holds a list of all the libraries we want to
3190 search. The order is chosen to pick up the c library
3191 ahead of ucb or bsd libraries for SVR4.
3193 libswanted_uselargefiles (uselfs.U):
3194 This variable contains the libraries needed by large file builds
3195 and added to ldflags by hints files. It is a space separated list
3196 of the library names without the "lib" prefix or any suffix, just
3200 This variable is defined but not used by Configure.
3201 The value is a plain '' and is not useful.
3204 This variable is defined but not used by Configure.
3205 The value is a plain '' and is not useful.
3207 lkflags (ccflags.U):
3208 This variable contains any additional C partial linker flags desired by
3209 the user. It is up to the Makefile to use this.
3212 This variable is used internally by Configure to determine the
3213 full pathname (if any) of the ln program. After Configure runs,
3214 the value is reset to a plain "ln" and is not useful.
3217 This variable holds the name of the command to make
3218 symbolic links (if they are supported). It can be used
3219 in the Makefile. It is either 'ln -s' or 'ln'
3221 localtime_r_proto (d_localtime_r.U):
3222 This variable encodes the prototype of localtime_r.
3223 It is zero if d_localtime_r is undef, and one of the
3224 REENTRANT_PROTO_T_ABC macros of reentr.h if d_localtime_r
3227 locincpth (ccflags.U):
3228 This variable contains a list of additional directories to be
3229 searched by the compiler. The appropriate '-I' directives will
3230 be added to ccflags. This is intended to simplify setting
3231 local directories from the Configure command line.
3232 It's not much, but it parallels the loclibpth stuff in libpth.U.
3234 loclibpth (libpth.U):
3235 This variable holds the paths (space-separated) used to find local
3236 libraries. It is prepended to libpth, and is intended to be easily
3237 set from the command line.
3239 longdblsize (d_longdbl.U):
3240 This variable contains the value of the LONG_DOUBLESIZE symbol, which
3241 indicates to the C program how many bytes there are in a long double,
3242 if this system supports long doubles.
3244 longlongsize (d_longlong.U):
3245 This variable contains the value of the LONGLONGSIZE symbol, which
3246 indicates to the C program how many bytes there are in a long long,
3247 if this system supports long long.
3249 longsize (intsize.U):
3250 This variable contains the value of the LONGSIZE symbol, which
3251 indicates to the C program how many bytes there are in a long.
3254 This variable is defined but not used by Configure.
3255 The value is a plain '' and is not useful.
3258 This variable is defined but not used by Configure.
3259 The value is a plain '' and is not useful.
3262 This variable is used internally by Configure to determine the
3263 full pathname (if any) of the ls program. After Configure runs,
3264 the value is reset to a plain "ls" and is not useful.
3266 lseeksize (lseektype.U):
3267 This variable defines lseektype to be something like off_t, long,
3268 or whatever type is used to declare lseek offset's type in the
3269 kernel (which also appears to be lseek's return type).
3271 lseektype (lseektype.U):
3272 This variable defines lseektype to be something like off_t, long,
3273 or whatever type is used to declare lseek offset's type in the
3274 kernel (which also appears to be lseek's return type).
3277 This variable is defined but not used by Configure.
3278 The value is a plain '' and is not useful.
3281 This variable is defined but not used by Configure.
3282 The value is a plain '' and is not useful.
3285 This variable is used internally by Configure to determine the
3286 full pathname (if any) of the make program. After Configure runs,
3287 the value is reset to a plain "make" and is not useful.
3289 make_set_make (make.U):
3290 Some versions of 'make' set the variable MAKE. Others do not.
3291 This variable contains the string to be included in Makefile.SH
3292 so that MAKE is set if needed, and not if not needed.
3293 Possible values are:
3294 make_set_make='#' # If your make program handles this for you,
3295 make_set_make="MAKE=$make" # if it doesn't.
3296 I used a comment character so that we can distinguish a
3297 'set' value (from a previous config.sh or Configure '-D' option)
3298 from an uncomputed value.
3300 mallocobj (mallocsrc.U):
3301 This variable contains the name of the malloc.o that this package
3302 generates, if that malloc.o is preferred over the system malloc.
3303 Otherwise the value is null. This variable is intended for generating
3304 Makefiles. See mallocsrc.
3306 mallocsrc (mallocsrc.U):
3307 This variable contains the name of the malloc.c that comes with
3308 the package, if that malloc.c is preferred over the system malloc.
3309 Otherwise the value is null. This variable is intended for generating
3312 malloctype (mallocsrc.U):
3313 This variable contains the kind of ptr returned by malloc and realloc.
3315 man1dir (man1dir.U):
3316 This variable contains the name of the directory in which manual
3317 source pages are to be put. It is the responsibility of the
3318 Makefile.SH to get the value of this into the proper command.
3319 You must be prepared to do the ~name expansion yourself.
3321 man1direxp (man1dir.U):
3322 This variable is the same as the man1dir variable, but is filename
3323 expanded at configuration time, for convenient use in makefiles.
3325 man1ext (man1dir.U):
3326 This variable contains the extension that the manual page should
3327 have: one of 'n', 'l', or '1'. The Makefile must supply the '.'.
3330 man3dir (man3dir.U):
3331 This variable contains the name of the directory in which manual
3332 source pages are to be put. It is the responsibility of the
3333 Makefile.SH to get the value of this into the proper command.
3334 You must be prepared to do the ~name expansion yourself.
3336 man3direxp (man3dir.U):
3337 This variable is the same as the man3dir variable, but is filename
3338 expanded at configuration time, for convenient use in makefiles.
3340 man3ext (man3dir.U):
3341 This variable contains the extension that the manual page should
3342 have: one of 'n', 'l', or '3'. The Makefile must supply the '.'.
3346 This variable is used internally by Configure to determine the
3347 full pathname (if any) of the Mcc program. After Configure runs,
3348 the value is reset to a plain "Mcc" and is not useful.
3350 mips_type (usrinc.U):
3351 This variable holds the environment type for the mips system.
3352 Possible values are "BSD 4.3" and "System V".
3355 This variable is used internally by Configure to determine the
3356 full pathname (if any) of the mkdir program. After Configure runs,
3357 the value is reset to a plain "mkdir" and is not useful.
3359 mmaptype (d_mmap.U):
3360 This symbol contains the type of pointer returned by mmap()
3361 (and simultaneously the type of the first argument).
3362 It can be 'void *' or 'caddr_t'.
3364 modetype (modetype.U):
3365 This variable defines modetype to be something like mode_t,
3366 int, unsigned short, or whatever type is used to declare file
3367 modes for system calls.
3370 This variable is used internally by Configure to determine the
3371 full pathname (if any) of the more program. After Configure runs,
3372 the value is reset to a plain "more" and is not useful.
3374 multiarch (multiarch.U):
3375 This variable conditionally defines the MULTIARCH symbol
3376 which signifies the presence of multiplatform files.
3377 This is normally set by hints files.
3380 This variable is defined but not used by Configure.
3381 The value is a plain '' and is not useful.
3383 myarchname (archname.U):
3384 This variable holds the architecture name computed by Configure in
3385 a previous run. It is not intended to be perused by any user and
3386 should never be set in a hint file.
3388 mydomain (myhostname.U):
3389 This variable contains the eventual value of the MYDOMAIN symbol,
3390 which is the domain of the host the program is going to run on.
3391 The domain must be appended to myhostname to form a complete host name.
3392 The dot comes with mydomain, and need not be supplied by the program.
3394 myhostname (myhostname.U):
3395 This variable contains the eventual value of the MYHOSTNAME symbol,
3396 which is the name of the host the program is going to run on.
3397 The domain is not kept with hostname, but must be gotten from mydomain.
3398 The dot comes with mydomain, and need not be supplied by the program.
3400 myuname (Oldconfig.U):
3401 The output of 'uname -a' if available, otherwise the hostname. On Xenix,
3402 pseudo variables assignments in the output are stripped, thank you. The
3403 whole thing is then lower-cased.
3406 This variable contains the '-n' flag if that is what causes the echo
3407 command to suppress newline. Otherwise it is null. Correct usage is
3408 $echo $n "prompt for a question: $c".
3410 need_va_copy (need_va_copy.U):
3411 This symbol, if defined, indicates that the system stores
3412 the variable argument list datatype, va_list, in a format
3413 that cannot be copied by simple assignment, so that some
3414 other means must be used when copying is required.
3415 As such systems vary in their provision (or non-provision)
3416 of copying mechanisms, handy.h defines a platform-
3417 independent macro, Perl_va_copy(src, dst), to do the job.
3419 netdb_hlen_type (netdbtype.U):
3420 This variable holds the type used for the 2nd argument to
3421 gethostbyaddr(). Usually, this is int or size_t or unsigned.
3422 This is only useful if you have gethostbyaddr(), naturally.
3424 netdb_host_type (netdbtype.U):
3425 This variable holds the type used for the 1st argument to
3426 gethostbyaddr(). Usually, this is char * or void *, possibly
3427 with or without a const prefix.
3428 This is only useful if you have gethostbyaddr(), naturally.
3430 netdb_name_type (netdbtype.U):
3431 This variable holds the type used for the argument to
3432 gethostbyname(). Usually, this is char * or const char *.
3433 This is only useful if you have gethostbyname(), naturally.
3435 netdb_net_type (netdbtype.U):
3436 This variable holds the type used for the 1st argument to
3437 getnetbyaddr(). Usually, this is int or long.
3438 This is only useful if you have getnetbyaddr(), naturally.
3441 This variable is used internally by Configure to determine the
3442 full pathname (if any) of the nm program. After Configure runs,
3443 the value is reset to a plain "nm" and is not useful.
3446 This variable holds the options that may be necessary for nm.
3448 nm_so_opt (usenm.U):
3449 This variable holds the options that may be necessary for nm
3450 to work on a shared library but that can not be used on an
3451 archive library. Currently, this is only used by Linux, where
3452 nm --dynamic is *required* to get symbols from an ELF library which
3453 has been stripped, but nm --dynamic is *fatal* on an archive library.
3454 Maybe Linux should just always set usenm=false.
3456 nonxs_ext (Extensions.U):
3457 This variable holds a list of all non-xs extensions included
3458 in the package. All of them will be built.
3461 This variable is used internally by Configure to determine the
3462 full pathname (if any) of the nroff program. After Configure runs,
3463 the value is reset to a plain "nroff" and is not useful.
3465 nv_preserves_uv_bits (perlxv.U):
3466 This variable indicates how many of bits type uvtype
3467 a variable nvtype can preserve.
3469 nveformat (perlxvf.U):
3470 This variable contains the format string used for printing
3471 a Perl NV using %e-ish floating point format.
3473 nvEUformat (perlxvf.U):
3474 This variable contains the format string used for printing
3475 a Perl NV using %E-ish floating point format.
3477 nvfformat (perlxvf.U):
3478 This variable confains the format string used for printing
3479 a Perl NV using %f-ish floating point format.
3481 nvFUformat (perlxvf.U):
3482 This variable confains the format string used for printing
3483 a Perl NV using %F-ish floating point format.
3485 nvgformat (perlxvf.U):
3486 This variable contains the format string used for printing
3487 a Perl NV using %g-ish floating point format.
3489 nvGUformat (perlxvf.U):
3490 This variable contains the format string used for printing
3491 a Perl NV using %G-ish floating point format.
3494 This variable is the size of an NV in bytes.
3497 This variable contains the C type used for Perl's NV.
3499 o_nonblock (nblock_io.U):
3500 This variable bears the symbol value to be used during open() or fcntl()
3501 to turn on non-blocking I/O for a file descriptor. If you wish to switch
3502 between blocking and non-blocking, you may try ioctl(FIOSNBIO) instead,
3503 but that is only supported by some devices.
3506 This is an old synonym for _o.
3508 old_pthread_create_joinable (d_pthrattrj.U):
3509 This variable defines the constant to use for creating joinable
3510 (aka undetached) pthreads. Unused if pthread.h defines
3511 PTHREAD_CREATE_JOINABLE. If used, possible values are
3512 PTHREAD_CREATE_UNDETACHED and __UNDETACHED.
3514 optimize (ccflags.U):
3515 This variable contains any optimizer/debugger flag that should be used.
3516 It is up to the Makefile to use it.
3518 orderlib (orderlib.U):
3519 This variable is "true" if the components of libraries must be ordered
3520 (with `lorder $* | tsort`) before placing them in an archive. Set to
3521 "false" if ranlib or ar can generate random libraries.
3523 osname (Oldconfig.U):
3524 This variable contains the operating system name (e.g. sunos,
3525 solaris, hpux, etc.). It can be useful later on for setting
3526 defaults. Any spaces are replaced with underscores. It is set
3527 to a null string if we can't figure it out.
3529 osvers (Oldconfig.U):
3530 This variable contains the operating system version (e.g.
3531 4.1.3, 5.2, etc.). It is primarily used for helping select
3532 an appropriate hints file, but might be useful elsewhere for
3533 setting defaults. It is set to '' if we can't figure it out.
3534 We try to be flexible about how much of the version number
3535 to keep, e.g. if 4.1.1, 4.1.2, and 4.1.3 are essentially the
3536 same for this package, hints files might just be os_4.0 or
3537 os_4.1, etc., not keeping separate files for each little release.
3539 otherlibdirs (otherlibdirs.U):
3540 This variable contains a colon-separated set of paths for the perl
3541 binary to search for additional library files or modules.
3542 These directories will be tacked to the end of @INC.
3543 Perl will automatically search below each path for version-
3544 and architecture-specific directories. See inc_version_list
3546 A value of ' ' means 'none' and is used to preserve this value
3547 for the next run through Configure.
3549 package (package.U):
3550 This variable contains the name of the package being constructed.
3551 It is primarily intended for the use of later Configure units.
3554 This variable contains the name of the preferred pager on the system.
3555 Usual values are (the full pathnames of) more, less, pg, or cat.
3558 This variable contains a command that produces the text of the
3559 /etc/passwd file. This is normally "cat /etc/passwd", but can be
3560 "ypcat passwd" when NIS is used.
3561 On some systems, such as os390, there may be no equivalent
3562 command, in which case this variable is unset.
3564 patchlevel (patchlevel.U):
3565 The patchlevel level of this package.
3566 The value of patchlevel comes from the patchlevel.h file.
3567 In a version number such as 5.6.1, this is the "6".
3568 In patchlevel.h, this is referred to as "PERL_VERSION".
3571 This is an old synonym for p_ in Head.U, the character
3572 used to separate elements in the command shell search PATH.
3575 This variable contains the full path (if any) to a previously
3576 installed perl5.005 or later suitable for running the script
3577 to determine inc_version_list.
3580 This variable contains the full path (if any) to a previously
3581 installed perl5.005 or later suitable for running the script
3582 to determine inc_version_list.
3585 This variable is defined but not used by Configure.
3586 The value is a plain '' and is not useful.
3588 perl_patchlevel (patchlevel.U):
3589 This is the Perl patch level, a numeric change identifier,
3590 as defined by whichever source code maintenance system
3591 is used to maintain the patches; currently Perforce.
3592 It does not correlate with the Perl version numbers or
3593 the maintenance versus development dichotomy except
3594 by also being increasing.
3596 PERL_REVISION (Oldsyms.U):
3597 In a Perl version number such as 5.6.2, this is the 5.
3598 This value is manually set in patchlevel.h
3600 PERL_SUBVERSION (Oldsyms.U):
3601 In a Perl version number such as 5.6.2, this is the 2.
3602 Values greater than 50 represent potentially unstable
3603 development subversions.
3604 This value is manually set in patchlevel.h
3606 PERL_VERSION (Oldsyms.U):
3607 In a Perl version number such as 5.6.2, this is the 6.
3608 This value is manually set in patchlevel.h
3610 perladmin (perladmin.U):
3611 Electronic mail address of the perl5 administrator.
3614 The list of libraries needed by Perl only (any libraries needed
3615 by extensions only will by dropped, if using dynamic loading).
3617 perlpath (perlpath.U):
3618 This variable contains the eventual value of the PERLPATH symbol,
3619 which contains the name of the perl interpreter to be used in
3620 shell scripts and in the "eval 'exec'" idiom. This variable is
3621 not necessarily the pathname of the file containing the perl
3622 interpreter; you must append the executable extension (_exe) if
3623 it is not already present. Note that Perl code that runs during
3624 the Perl build process cannot reference this variable, as Perl
3625 may not have been installed, or even if installed, may be a
3626 different version of Perl.
3629 This variable is used internally by Configure to determine the
3630 full pathname (if any) of the pg program. After Configure runs,
3631 the value is reset to a plain "pg" and is not useful.
3633 phostname (myhostname.U):
3634 This variable contains the eventual value of the PHOSTNAME symbol,
3635 which is a command that can be fed to popen() to get the host name.
3636 The program should probably not presume that the domain is or isn't
3639 pidtype (pidtype.U):
3640 This variable defines PIDTYPE to be something like pid_t, int,
3641 ushort, or whatever type is used to declare process ids in the kernel.
3644 Holds the private path used by Configure to find out the libraries.
3645 Its value is prepend to libpth. This variable takes care of special
3646 machines, like the mips. Usually, it should be empty.
3648 pm_apiversion (xs_apiversion.U):
3649 This variable contains the version of the oldest perl
3650 compatible with the present perl. (That is, pure perl modules
3651 written for $pm_apiversion will still work for the current
3652 version). perl.c:incpush() and lib/lib.pm will automatically
3653 search in $sitelib for older directories across major versions
3654 back to pm_apiversion. This is only useful if you have a perl
3655 library directory tree structured like the default one. The
3656 versioned site_perl library was introduced in 5.005, so that's
3657 the default setting for this variable. It's hard to imagine
3658 it changing before Perl6. It is included here for symmetry
3659 with xs_apiveprsion -- the searching algorithms will
3660 (presumably) be similar.
3661 See the INSTALL file for how this works.
3664 This variable is defined but not used by Configure.
3665 The value is a plain '' and is not useful.
3668 This variable is defined but not used by Configure.
3669 The value is a plain '' and is not useful.
3672 This variable holds the name of the directory below which the
3673 user will install the package. Usually, this is /usr/local, and
3674 executables go in /usr/local/bin, library stuff in /usr/local/lib,
3675 man pages in /usr/local/man, etc. It is only used to set defaults
3676 for things in bin.U, mansrc.U, privlib.U, or scriptdir.U.
3678 prefixexp (prefix.U):
3679 This variable holds the full absolute path of the directory below
3680 which the user will install the package. Derived from prefix.
3682 privlib (privlib.U):
3683 This variable contains the eventual value of the PRIVLIB symbol,
3684 which is the name of the private library for this package. It may
3685 have a ~ on the front. It is up to the makefile to eventually create
3686 this directory while performing installation (with ~ substitution).
3688 privlibexp (privlib.U):
3689 This variable is the ~name expanded version of privlib, so that you
3690 may use it directly in Makefiles or shell scripts.
3692 procselfexe (d_procselfexe.U):
3693 If d_procselfexe is defined, $procselfexe is the filename
3694 of the symbolic link pointing to the absolute pathname of
3695 the executing program.
3697 prototype (prototype.U):
3698 This variable holds the eventual value of CAN_PROTOTYPE, which
3699 indicates the C compiler can handle funciton prototypes.
3701 ptrsize (ptrsize.U):
3702 This variable contains the value of the PTRSIZE symbol, which
3703 indicates to the C program how many bytes there are in a pointer.
3705 quadkind (quadtype.U):
3706 This variable, if defined, encodes the type of a quad:
3707 1 = int, 2 = long, 3 = long long, 4 = int64_t.
3709 quadtype (quadtype.U):
3710 This variable defines Quad_t to be something like long, int,
3711 long long, int64_t, or whatever type is used for 64-bit integers.
3713 randbits (randfunc.U):
3714 Indicates how many bits are produced by the function used to
3715 generate normalized random numbers.
3717 randfunc (randfunc.U):
3718 Indicates the name of the random number function to use.
3719 Values include drand48, random, and rand. In C programs,
3720 the 'Drand01' macro is defined to generate uniformly distributed
3721 random numbers over the range [0., 1.[ (see drand01 and nrand).
3723 random_r_proto (d_random_r.U):
3724 This variable encodes the prototype of random_r.
3725 It is zero if d_random_r is undef, and one of the
3726 REENTRANT_PROTO_T_ABC macros of reentr.h if d_random_r
3729 randseedtype (randfunc.U):
3730 Indicates the type of the argument of the seedfunc.
3732 ranlib (orderlib.U):
3733 This variable is set to the pathname of the ranlib program, if it is
3734 needed to generate random libraries. Set to ":" if ar can generate
3735 random libraries or if random libraries are not supported
3737 rd_nodata (nblock_io.U):
3738 This variable holds the return code from read() when no data is
3739 present. It should be -1, but some systems return 0 when O_NDELAY is
3740 used, which is a shame because you cannot make the difference between
3741 no data and an EOF.. Sigh!
3743 readdir64_r_proto (d_readdir64_r.U):
3744 This variable encodes the prototype of readdir64_r.
3745 It is zero if d_readdir64_r is undef, and one of the
3746 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir64_r
3749 readdir_r_proto (d_readdir_r.U):
3750 This variable encodes the prototype of readdir_r.
3751 It is zero if d_readdir_r is undef, and one of the
3752 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir_r
3755 revision (patchlevel.U):
3756 The value of revision comes from the patchlevel.h file.
3757 In a version number such as 5.6.1, this is the "5".
3758 In patchlevel.h, this is referred to as "PERL_REVISION".
3761 This variable is used internally by Configure to determine the
3762 full pathname (if any) of the rm program. After Configure runs,
3763 the value is reset to a plain "rm" and is not useful.
3766 This variable is defined but not used by Configure.
3767 The value is a plain '' and is not useful.
3770 This variable contains the command used by Configure
3771 to copy and execute a cross-compiled executable in the
3772 target host. Useful and available only during Perl build.
3773 Empty string '' if not cross-compiling.
3776 This variable contains 'true' or 'false' depending whether the
3777 nm extraction should be performed or not, according to the value
3778 of usenm and the flags on the Configure command line.
3780 sched_yield (d_pthread_y.U):
3781 This variable defines the way to yield the execution
3782 of the current thread.
3784 scriptdir (scriptdir.U):
3785 This variable holds the name of the directory in which the user wants
3786 to put publicly scripts for the package in question. It is either
3787 the same directory as for binaries, or a special one that can be
3788 mounted across different architectures, like /usr/share. Programs
3789 must be prepared to deal with ~name expansion.
3791 scriptdirexp (scriptdir.U):
3792 This variable is the same as scriptdir, but is filename expanded
3793 at configuration time, for programs not wanting to bother with it.
3796 This variable is used internally by Configure to determine the
3797 full pathname (if any) of the sed program. After Configure runs,
3798 the value is reset to a plain "sed" and is not useful.
3800 seedfunc (randfunc.U):
3801 Indicates the random number generating seed function.
3802 Values include srand48, srandom, and srand.
3804 selectminbits (selectminbits.U):
3805 This variable holds the minimum number of bits operated by select.
3806 That is, if you do select(n, ...), how many bits at least will be
3807 cleared in the masks if some activity is detected. Usually this
3808 is either n or 32*ceil(n/32), especially many little-endians do
3809 the latter. This is only useful if you have select(), naturally.
3811 selecttype (selecttype.U):
3812 This variable holds the type used for the 2nd, 3rd, and 4th
3813 arguments to select. Usually, this is 'fd_set *', if HAS_FD_SET
3814 is defined, and 'int *' otherwise. This is only useful if you
3815 have select(), naturally.
3818 This variable is defined but not used by Configure.
3819 The value is a plain '' and is not useful.
3821 setgrent_r_proto (d_setgrent_r.U):
3822 This variable encodes the prototype of setgrent_r.
3823 It is zero if d_setgrent_r is undef, and one of the
3824 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setgrent_r
3827 sethostent_r_proto (d_sethostent_r.U):
3828 This variable encodes the prototype of sethostent_r.
3829 It is zero if d_sethostent_r is undef, and one of the
3830 REENTRANT_PROTO_T_ABC macros of reentr.h if d_sethostent_r
3833 setlocale_r_proto (d_setlocale_r.U):
3834 This variable encodes the prototype of setlocale_r.
3835 It is zero if d_setlocale_r is undef, and one of the
3836 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setlocale_r
3839 setnetent_r_proto (d_setnetent_r.U):
3840 This variable encodes the prototype of setnetent_r.
3841 It is zero if d_setnetent_r is undef, and one of the
3842 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setnetent_r
3845 setprotoent_r_proto (d_setprotoent_r.U):
3846 This variable encodes the prototype of setprotoent_r.
3847 It is zero if d_setprotoent_r is undef, and one of the
3848 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setprotoent_r
3851 setpwent_r_proto (d_setpwent_r.U):
3852 This variable encodes the prototype of setpwent_r.
3853 It is zero if d_setpwent_r is undef, and one of the
3854 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setpwent_r
3857 setservent_r_proto (d_setservent_r.U):
3858 This variable encodes the prototype of setservent_r.
3859 It is zero if d_setservent_r is undef, and one of the
3860 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setservent_r
3864 This variable contains the full pathname of the shell used
3865 on this system to execute Bourne shell scripts. Usually, this will be
3866 /bin/sh, though it's possible that some systems will have /bin/ksh,
3867 /bin/pdksh, /bin/ash, /bin/bash, or even something such as
3869 This unit comes before Options.U, so you can't set sh with a '-D'
3870 option, though you can override this (and startsh)
3871 with '-O -Dsh=/bin/whatever -Dstartsh=whatever'
3874 This variable is defined but not used by Configure.
3875 The value is a plain '' and is not useful.
3877 sharpbang (spitshell.U):
3878 This variable contains the string #! if this system supports that
3881 shmattype (d_shmat.U):
3882 This symbol contains the type of pointer returned by shmat().
3883 It can be 'void *' or 'char *'.
3885 shortsize (intsize.U):
3886 This variable contains the value of the SHORTSIZE symbol which
3887 indicates to the C program how many bytes there are in a short.
3889 shrpenv (libperl.U):
3890 If the user builds a shared libperl.so, then we need to tell the
3891 'perl' executable where it will be able to find the installed libperl.so.
3892 One way to do this on some systems is to set the environment variable
3893 LD_RUN_PATH to the directory that will be the final location of the
3894 shared libperl.so. The makefile can use this with something like
3895 $shrpenv $(CC) -o perl perlmain.o $libperl $libs
3897 shrpenv="env LD_RUN_PATH=$archlibexp/CORE"
3900 See the main perl Makefile.SH for actual working usage.
3901 Alternatively, we might be able to use a command line option such
3902 as -R $archlibexp/CORE (Solaris) or -Wl,-rpath
3903 $archlibexp/CORE (Linux).
3905 shsharp (spitshell.U):
3906 This variable tells further Configure units whether your sh can
3909 sig_count (sig_name.U):
3910 This variable holds a number larger than the largest valid
3911 signal number. This is usually the same as the NSIG macro.
3913 sig_name (sig_name.U):
3914 This variable holds the signal names, space separated. The leading
3915 SIG in signal name is removed. A ZERO is prepended to the
3916 list. This is currently not used.
3918 sig_name_init (sig_name.U):
3919 This variable holds the signal names, enclosed in double quotes and
3920 separated by commas, suitable for use in the SIG_NAME definition
3921 below. A "ZERO" is prepended to the list, and the list is
3922 terminated with a plain 0. The leading SIG in signal names
3923 is removed. See sig_num.
3925 sig_num (sig_name.U):
3926 This variable holds the signal numbers, space separated. A ZERO is
3927 prepended to the list (corresponding to the fake SIGZERO), and
3928 the list is terminated with a 0. Those numbers correspond to
3929 the value of the signal listed in the same place within the
3932 sig_num_init (sig_name.U):
3933 This variable holds the signal numbers, enclosed in double quotes and
3934 separated by commas, suitable for use in the SIG_NUM definition
3935 below. A "ZERO" is prepended to the list, and the list is
3936 terminated with a plain 0.
3938 sig_size (sig_name.U):
3939 This variable contains the number of elements of the sig_name
3940 and sig_num arrays, excluding the final NULL entry.
3942 signal_t (d_voidsig.U):
3943 This variable holds the type of the signal handler (void or int).
3945 sitearch (sitearch.U):
3946 This variable contains the eventual value of the SITEARCH symbol,
3947 which is the name of the private library for this package. It may
3948 have a ~ on the front. It is up to the makefile to eventually create
3949 this directory while performing installation (with ~ substitution).
3950 The standard distribution will put nothing in this directory.
3951 After perl has been installed, users may install their own local
3952 architecture-dependent modules in this directory with
3953 MakeMaker Makefile.PL
3954 or equivalent. See INSTALL for details.
3956 sitearchexp (sitearch.U):
3957 This variable is the ~name expanded version of sitearch, so that you
3958 may use it directly in Makefiles or shell scripts.
3960 sitebin (sitebin.U):
3961 This variable holds the name of the directory in which the user wants
3962 to put add-on publicly executable files for the package in question. It
3963 is most often a local directory such as /usr/local/bin. Programs using
3964 this variable must be prepared to deal with ~name substitution.
3965 The standard distribution will put nothing in this directory.
3966 After perl has been installed, users may install their own local
3967 executables in this directory with
3968 MakeMaker Makefile.PL
3969 or equivalent. See INSTALL for details.
3971 sitebinexp (sitebin.U):
3972 This is the same as the sitebin variable, but is filename expanded at
3973 configuration time, for use in your makefiles.
3975 sitelib (sitelib.U):
3976 This variable contains the eventual value of the SITELIB symbol,
3977 which is the name of the private library for this package. It may
3978 have a ~ on the front. It is up to the makefile to eventually create
3979 this directory while performing installation (with ~ substitution).
3980 The standard distribution will put nothing in this directory.
3981 After perl has been installed, users may install their own local
3982 architecture-independent modules in this directory with
3983 MakeMaker Makefile.PL
3984 or equivalent. See INSTALL for details.
3986 sitelib_stem (sitelib.U):
3987 This variable is $sitelibexp with any trailing version-specific component
3988 removed. The elements in inc_version_list (inc_version_list.U) can
3989 be tacked onto this variable to generate a list of directories to search.
3991 sitelibexp (sitelib.U):
3992 This variable is the ~name expanded version of sitelib, so that you
3993 may use it directly in Makefiles or shell scripts.
3995 siteprefix (siteprefix.U):
3996 This variable holds the full absolute path of the directory below
3997 which the user will install add-on packages.
3998 See INSTALL for usage and examples.
4000 siteprefixexp (siteprefix.U):
4001 This variable holds the full absolute path of the directory below
4002 which the user will install add-on packages. Derived from siteprefix.
4004 sizesize (sizesize.U):
4005 This variable contains the size of a sizetype in bytes.
4007 sizetype (sizetype.U):
4008 This variable defines sizetype to be something like size_t,
4009 unsigned long, or whatever type is used to declare length
4010 parameters for string functions.
4013 This variable is defined but not used by Configure.
4014 The value is a plain '' and is not useful.
4017 This variable is defined but not used by Configure.
4018 The value is a plain '' and is not useful.
4021 This variable holds the extension used to identify shared libraries
4022 (also known as shared objects) on the system. Usually set to 'so'.
4024 sockethdr (d_socket.U):
4025 This variable has any cpp '-I' flags needed for socket support.
4027 socketlib (d_socket.U):
4028 This variable has the names of any libraries needed for socket support.
4030 socksizetype (socksizetype.U):
4031 This variable holds the type used for the size argument
4032 for various socket calls like accept. Usual values include
4033 socklen_t, size_t, and int.
4036 This variable is used internally by Configure to determine the
4037 full pathname (if any) of the sort program. After Configure runs,
4038 the value is reset to a plain "sort" and is not useful.
4040 spackage (package.U):
4041 This variable contains the name of the package being constructed,
4042 with the first letter uppercased, i.e. suitable for starting
4045 spitshell (spitshell.U):
4046 This variable contains the command necessary to spit out a runnable
4047 shell on this system. It is either cat or a grep '-v' for # comments.
4049 sPRId64 (quadfio.U):
4050 This variable, if defined, contains the string used by stdio to
4051 format 64-bit decimal numbers (format 'd') for output.
4053 sPRIeldbl (longdblfio.U):
4054 This variable, if defined, contains the string used by stdio to
4055 format long doubles (format 'e') for output.
4057 sPRIEUldbl (longdblfio.U):
4058 This variable, if defined, contains the string used by stdio to
4059 format long doubles (format 'E') for output.
4060 The 'U' in the name is to separate this from sPRIeldbl so that even
4061 case-blind systems can see the difference.
4063 sPRIfldbl (longdblfio.U):
4064 This variable, if defined, contains the string used by stdio to
4065 format long doubles (format 'f') for output.
4067 sPRIFUldbl (longdblfio.U):
4068 This variable, if defined, contains the string used by stdio to
4069 format long doubles (format 'F') for output.
4070 The 'U' in the name is to separate this from sPRIfldbl so that even
4071 case-blind systems can see the difference.
4073 sPRIgldbl (longdblfio.U):
4074 This variable, if defined, contains the string used by stdio to
4075 format long doubles (format 'g') for output.
4077 sPRIGUldbl (longdblfio.U):
4078 This variable, if defined, contains the string used by stdio to
4079 format long doubles (format 'G') for output.
4080 The 'U' in the name is to separate this from sPRIgldbl so that even
4081 case-blind systems can see the difference.
4083 sPRIi64 (quadfio.U):
4084 This variable, if defined, contains the string used by stdio to
4085 format 64-bit decimal numbers (format 'i') for output.
4087 sPRIo64 (quadfio.U):
4088 This variable, if defined, contains the string used by stdio to
4089 format 64-bit octal numbers (format 'o') for output.
4091 sPRIu64 (quadfio.U):
4092 This variable, if defined, contains the string used by stdio to
4093 format 64-bit unsigned decimal numbers (format 'u') for output.
4095 sPRIx64 (quadfio.U):
4096 This variable, if defined, contains the string used by stdio to
4097 format 64-bit hexadecimal numbers (format 'x') for output.
4099 sPRIXU64 (quadfio.U):
4100 This variable, if defined, contains the string used by stdio to
4101 format 64-bit hExADECimAl numbers (format 'X') for output.
4102 The 'U' in the name is to separate this from sPRIx64 so that even
4103 case-blind systems can see the difference.
4105 srand48_r_proto (d_srand48_r.U):
4106 This variable encodes the prototype of srand48_r.
4107 It is zero if d_srand48_r is undef, and one of the
4108 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srand48_r
4111 srandom_r_proto (d_srandom_r.U):
4112 This variable encodes the prototype of srandom_r.
4113 It is zero if d_srandom_r is undef, and one of the
4114 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srandom_r
4118 This variable holds the path to the package source. It is up to
4119 the Makefile to use this variable and set VPATH accordingly to
4120 find the sources remotely.
4122 sSCNfldbl (longdblfio.U):
4123 This variable, if defined, contains the string used by stdio to
4124 format long doubles (format 'f') for input.
4126 ssizetype (ssizetype.U):
4127 This variable defines ssizetype to be something like ssize_t,
4128 long or int. It is used by functions that return a count
4129 of bytes or an error condition. It must be a signed type.
4130 We will pick a type such that sizeof(SSize_t) == sizeof(Size_t).
4132 startperl (startperl.U):
4133 This variable contains the string to put on the front of a perl
4134 script to make sure (hopefully) that it runs with perl and not some
4135 shell. Of course, that leading line must be followed by the classical
4137 eval 'exec perl -S $0 ${1+"$@"}'
4138 if $running_under_some_shell;
4139 to guarantee perl startup should the shell execute the script. Note
4140 that this magic incatation is not understood by csh.
4142 startsh (startsh.U):
4143 This variable contains the string to put on the front of a shell
4144 script to make sure (hopefully) that it runs with sh and not some
4147 static_ext (Extensions.U):
4148 This variable holds a list of XS extension files we want to
4149 link statically into the package. It is used by Makefile.
4151 stdchar (stdchar.U):
4152 This variable conditionally defines STDCHAR to be the type of char
4153 used in stdio.h. It has the values "unsigned char" or "char".
4155 stdio_base (d_stdstdio.U):
4156 This variable defines how, given a FILE pointer, fp, to access the
4157 _base field (or equivalent) of stdio.h's FILE structure. This will
4158 be used to define the macro FILE_base(fp).
4160 stdio_bufsiz (d_stdstdio.U):
4161 This variable defines how, given a FILE pointer, fp, to determine
4162 the number of bytes store in the I/O buffer pointer to by the
4163 _base field (or equivalent) of stdio.h's FILE structure. This will
4164 be used to define the macro FILE_bufsiz(fp).
4166 stdio_cnt (d_stdstdio.U):
4167 This variable defines how, given a FILE pointer, fp, to access the
4168 _cnt field (or equivalent) of stdio.h's FILE structure. This will
4169 be used to define the macro FILE_cnt(fp).
4171 stdio_filbuf (d_stdstdio.U):
4172 This variable defines how, given a FILE pointer, fp, to tell
4173 stdio to refill its internal buffers (?). This will
4174 be used to define the macro FILE_filbuf(fp).
4176 stdio_ptr (d_stdstdio.U):
4177 This variable defines how, given a FILE pointer, fp, to access the
4178 _ptr field (or equivalent) of stdio.h's FILE structure. This will
4179 be used to define the macro FILE_ptr(fp).
4181 stdio_stream_array (stdio_streams.U):
4182 This variable tells the name of the array holding the stdio streams.
4183 Usual values include _iob, __iob, and __sF.
4185 strerror_r_proto (d_strerror_r.U):
4186 This variable encodes the prototype of strerror_r.
4187 It is zero if d_strerror_r is undef, and one of the
4188 REENTRANT_PROTO_T_ABC macros of reentr.h if d_strerror_r
4191 strings (i_string.U):
4192 This variable holds the full path of the string header that will be
4193 used. Typically /usr/include/string.h or /usr/include/strings.h.
4196 This variable is defined but not used by Configure.
4197 The value is a plain '' and is not useful.
4199 subversion (patchlevel.U):
4200 The subversion level of this package.
4201 The value of subversion comes from the patchlevel.h file.
4202 In a version number such as 5.6.1, this is the "1".
4203 In patchlevel.h, this is referred to as "PERL_SUBVERSION".
4204 This is unique to perl.
4207 This variable holds the place where the manual is located on this
4208 system. It is not the place where the user wants to put his manual
4209 pages. Rather it is the place where Configure may look to find manual
4210 for unix commands (section 1 of the manual usually). See mansrc.
4213 This variable is defined but not used by Configure.
4214 The value is a plain '' and is not useful.
4217 This variable is defined but not used by Configure.
4218 The value is a plain '' and is not useful.
4220 targetarch (Cross.U):
4221 If cross-compiling, this variable contains the target architecture.
4222 If not, this will be empty.
4225 This variable is defined but not used by Configure.
4226 The value is a plain '' and is not useful.
4229 This variable is defined but not used by Configure.
4230 The value is a plain '' and is not useful.
4233 This variable is used internally by Configure to determine the
4234 full pathname (if any) of the test program. After Configure runs,
4235 the value is reset to a plain "test" and is not useful.
4237 timeincl (i_time.U):
4238 This variable holds the full path of the included time header(s).
4240 timetype (d_time.U):
4241 This variable holds the type returned by time(). It can be long,
4242 or time_t on BSD sites (in which case <sys/types.h> should be
4243 included). Anyway, the type Time_t should be used.
4245 tmpnam_r_proto (d_tmpnam_r.U):
4246 This variable encodes the prototype of tmpnam_r.
4247 It is zero if d_tmpnam_r is undef, and one of the
4248 REENTRANT_PROTO_T_ABC macros of reentr.h if d_tmpnam_r
4252 This variable contains the command used by Configure
4253 to copy to from the target host. Useful and available
4254 only during Perl build.
4255 The string ':' if not cross-compiling.
4258 This variable is used internally by Configure to determine the
4259 full pathname (if any) of the touch program. After Configure runs,
4260 the value is reset to a plain "touch" and is not useful.
4263 This variable is used internally by Configure to determine the
4264 full pathname (if any) of the tr program. After Configure runs,
4265 the value is reset to a plain "tr" and is not useful.
4268 This variable contains the value to be passed to the tr(1)
4269 command to transliterate a newline. Typical values are
4270 '\012' and '\n'. This is needed for EBCDIC systems where
4271 newline is not necessarily '\012'.
4274 This variable is defined but not used by Configure.
4275 The value is a plain '' and is not useful.
4277 ttyname_r_proto (d_ttyname_r.U):
4278 This variable encodes the prototype of ttyname_r.
4279 It is zero if d_ttyname_r is undef, and one of the
4280 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ttyname_r
4284 This variable is the size of an U16 in bytes.
4287 This variable contains the C type used for Perl's U16.
4290 This variable is the size of an U32 in bytes.
4293 This variable contains the C type used for Perl's U32.
4296 This variable is the size of an U64 in bytes.
4299 This variable contains the C type used for Perl's U64.
4302 This variable is the size of an U8 in bytes.
4305 This variable contains the C type used for Perl's U8.
4308 This variable contains the format string used for printing a Uid_t.
4310 uidsign (uidsign.U):
4311 This variable contains the signedness of a uidtype.
4312 1 for unsigned, -1 for signed.
4314 uidsize (uidsize.U):
4315 This variable contains the size of a uidtype in bytes.
4317 uidtype (uidtype.U):
4318 This variable defines Uid_t to be something like uid_t, int,
4319 ushort, or whatever type is used to declare user ids in the kernel.
4322 This variable is used internally by Configure to determine the
4323 full pathname (if any) of the uname program. After Configure runs,
4324 the value is reset to a plain "uname" and is not useful.
4327 This variable is used internally by Configure to determine the
4328 full pathname (if any) of the uniq program. After Configure runs,
4329 the value is reset to a plain "uniq" and is not useful.
4331 uquadtype (quadtype.U):
4332 This variable defines Uquad_t to be something like unsigned long,
4333 unsigned int, unsigned long long, uint64_t, or whatever type is
4334 used for 64-bit integers.
4336 use5005threads (usethreads.U):
4337 This variable conditionally defines the USE_5005THREADS symbol,
4338 and indicates that Perl should be built to use the 5.005-based
4339 threading implementation.
4341 use64bitall (use64bits.U):
4342 This variable conditionally defines the USE_64_BIT_ALL symbol,
4343 and indicates that 64-bit integer types should be used
4344 when available. The maximal possible
4345 64-bitness is employed: LP64 or ILP64, meaning that you will
4346 be able to use more than 2 gigabytes of memory. This mode is
4347 even more binary incompatible than USE_64_BIT_INT. You may not
4348 be able to run the resulting executable in a 32-bit CPU at all or
4349 you may need at least to reboot your OS to 64-bit mode.
4351 use64bitint (use64bits.U):
4352 This variable conditionally defines the USE_64_BIT_INT symbol,
4353 and indicates that 64-bit integer types should be used
4354 when available. The minimal possible 64-bitness
4355 is employed, just enough to get 64-bit integers into Perl.
4356 This may mean using for example "long longs", while your memory
4357 may still be limited to 2 gigabytes.
4359 usecrosscompile (Cross.U):
4360 This variable conditionally defines the USE_CROSS_COMPILE symbol,
4361 and indicates that Perl has been cross-compiled.
4364 This variable indicates if the system supports dynamic
4365 loading of some sort. See also dlsrc and dlobj.
4367 useithreads (usethreads.U):
4368 This variable conditionally defines the USE_ITHREADS symbol,
4369 and indicates that Perl should be built to use the interpreter-based
4370 threading implementation.
4372 uselargefiles (uselfs.U):
4373 This variable conditionally defines the USE_LARGE_FILES symbol,
4374 and indicates that large file interfaces should be used when
4377 uselongdouble (uselongdbl.U):
4378 This variable conditionally defines the USE_LONG_DOUBLE symbol,
4379 and indicates that long doubles should be used when available.
4381 usemorebits (usemorebits.U):
4382 This variable conditionally defines the USE_MORE_BITS symbol,
4383 and indicates that explicit 64-bit interfaces and long doubles
4384 should be used when available.
4386 usemultiplicity (usemultiplicity.U):
4387 This variable conditionally defines the MULTIPLICITY symbol,
4388 and indicates that Perl should be built to use multiplicity.
4390 usemymalloc (mallocsrc.U):
4391 This variable contains y if the malloc that comes with this package
4392 is desired over the system's version of malloc. People often include
4393 special versions of malloc for effiency, but such versions are often
4394 less portable. See also mallocsrc and mallocobj.
4395 If this is 'y', then -lmalloc is removed from $libs.
4398 This variable contains 'true' or 'false' depending whether the
4399 nm extraction is wanted or not.
4401 useopcode (Extensions.U):
4402 This variable holds either 'true' or 'false' to indicate
4403 whether the Opcode extension should be used. The sole
4404 use for this currently is to allow an easy mechanism
4405 for users to skip the Opcode extension from the Configure
4408 useperlio (useperlio.U):
4409 This variable conditionally defines the USE_PERLIO symbol,
4410 and indicates that the PerlIO abstraction should be
4413 useposix (Extensions.U):
4414 This variable holds either 'true' or 'false' to indicate
4415 whether the POSIX extension should be used. The sole
4416 use for this currently is to allow an easy mechanism
4417 for hints files to indicate that POSIX will not compile
4418 on a particular system.
4420 usereentrant (usethreads.U):
4421 This variable conditionally defines the USE_REENTRANT_API symbol,
4422 which indicates that the thread code may try to use the various
4423 _r versions of library functions. This is only potentially
4424 meaningful if usethreads is set and is very experimental, it is
4425 not even prompted for.
4428 This variable is set to true when the user agrees to use sfio.
4429 It is set to false when sfio is not available or when the user
4430 explicitely requests not to use sfio. It is here primarily so
4431 that command-line settings can override the auto-detection of
4432 d_sfio without running into a "WHOA THERE".
4434 useshrplib (libperl.U):
4435 This variable is set to 'yes' if the user wishes
4436 to build a shared libperl, and 'no' otherwise.
4438 usesocks (usesocks.U):
4439 This variable conditionally defines the USE_SOCKS symbol,
4440 and indicates that Perl should be built to use SOCKS.
4442 usethreads (usethreads.U):
4443 This variable conditionally defines the USE_THREADS symbol,
4444 and indicates that Perl should be built to use threads.
4446 usevendorprefix (vendorprefix.U):
4447 This variable tells whether the vendorprefix
4448 and consequently other vendor* paths are in use.
4450 usevfork (d_vfork.U):
4451 This variable is set to true when the user accepts to use vfork.
4452 It is set to false when no vfork is available or when the user
4453 explicitely requests not to use vfork.
4456 This variable holds the path of the include files, which is
4457 usually /usr/include. It is mainly used by other Configure units.
4460 This variable is defined but not used by Configure.
4461 The value is a plain '' and is not useful.
4463 uvoformat (perlxvf.U):
4464 This variable contains the format string used for printing
4465 a Perl UV as an unsigned octal integer.
4468 This variable is the size of a UV in bytes.
4471 This variable contains the C type used for Perl's UV.
4473 uvuformat (perlxvf.U):
4474 This variable contains the format string used for printing
4475 a Perl UV as an unsigned decimal integer.
4477 uvxformat (perlxvf.U):
4478 This variable contains the format string used for printing
4479 a Perl UV as an unsigned hexadecimal integer in lowercase abcdef.
4481 uvXUformat (perlxvf.U):
4482 This variable contains the format string used for printing
4483 a Perl UV as an unsigned hexadecimal integer in uppercase ABCDEF.
4485 vendorarch (vendorarch.U):
4486 This variable contains the value of the PERL_VENDORARCH symbol.
4487 It may have a ~ on the front.
4488 The standard distribution will put nothing in this directory.
4489 Vendors who distribute perl may wish to place their own
4490 architecture-dependent modules and extensions in this directory with
4491 MakeMaker Makefile.PL INSTALLDIRS=vendor
4492 or equivalent. See INSTALL for details.
4494 vendorarchexp (vendorarch.U):
4495 This variable is the ~name expanded version of vendorarch, so that you
4496 may use it directly in Makefiles or shell scripts.
4498 vendorbin (vendorbin.U):
4499 This variable contains the eventual value of the VENDORBIN symbol.
4500 It may have a ~ on the front.
4501 The standard distribution will put nothing in this directory.
4502 Vendors who distribute perl may wish to place additional
4503 binaries in this directory with
4504 MakeMaker Makefile.PL INSTALLDIRS=vendor
4505 or equivalent. See INSTALL for details.
4507 vendorbinexp (vendorbin.U):
4508 This variable is the ~name expanded version of vendorbin, so that you
4509 may use it directly in Makefiles or shell scripts.
4511 vendorlib (vendorlib.U):
4512 This variable contains the eventual value of the VENDORLIB symbol,
4513 which is the name of the private library for this package.
4514 The standard distribution will put nothing in this directory.
4515 Vendors who distribute perl may wish to place their own
4516 modules in this directory with
4517 MakeMaker Makefile.PL INSTALLDIRS=vendor
4518 or equivalent. See INSTALL for details.
4520 vendorlib_stem (vendorlib.U):
4521 This variable is $vendorlibexp with any trailing version-specific component
4522 removed. The elements in inc_version_list (inc_version_list.U) can
4523 be tacked onto this variable to generate a list of directories to search.
4525 vendorlibexp (vendorlib.U):
4526 This variable is the ~name expanded version of vendorlib, so that you
4527 may use it directly in Makefiles or shell scripts.
4529 vendorprefix (vendorprefix.U):
4530 This variable holds the full absolute path of the directory below
4531 which the vendor will install add-on packages.
4532 See INSTALL for usage and examples.
4534 vendorprefixexp (vendorprefix.U):
4535 This variable holds the full absolute path of the directory below
4536 which the vendor will install add-on packages. Derived from vendorprefix.
4538 version (patchlevel.U):
4539 The full version number of this package, such as 5.6.1 (or 5_6_1).
4540 This combines revision, patchlevel, and subversion to get the
4541 full version number, including any possible subversions.
4542 This is suitable for use as a directory name, and hence is
4543 filesystem dependent.
4545 version_patchlevel_string (patchlevel.U):
4546 This is a string combining version, subversion and
4547 perl_patchlevel (if perl_patchlevel is non-zero).
4548 It is typically something like
4549 'version 7 subversion 1' or
4550 'version 7 subversion 1 patchlevel 11224'
4551 It is computed here to avoid duplication of code in myconfig.SH
4554 versiononly (versiononly.U):
4555 If set, this symbol indicates that only the version-specific
4556 components of a perl installation should be installed.
4557 This may be useful for making a test installation of a new
4558 version without disturbing the existing installation.
4559 Setting versiononly is equivalent to setting installperl's -v option.
4560 In particular, the non-versioned scripts and programs such as
4561 a2p, c2ph, h2xs, pod2*, and perldoc are not installed
4562 (see INSTALL for a more complete list). Nor are the man
4564 Usually, this is undef.
4567 This variable is defined but not used by Configure.
4568 The value is a plain '' and is not useful.
4570 voidflags (voidflags.U):
4571 This variable contains the eventual value of the VOIDFLAGS symbol,
4572 which indicates how much support of the void type is given by this
4573 compiler. See VOIDFLAGS for more info.
4576 This variable holds extra path (space-separated) used to find
4577 libraries on this platform, for example CPU-specific libraries
4578 (on multi-CPU platforms) may be listed here.
4580 xs_apiversion (xs_apiversion.U):
4581 This variable contains the version of the oldest perl binary
4582 compatible with the present perl. perl.c:incpush() and
4583 lib/lib.pm will automatically search in $sitearch for older
4584 directories across major versions back to xs_apiversion.
4585 This is only useful if you have a perl library directory tree
4586 structured like the default one.
4587 See INSTALL for how this works.
4588 The versioned site_perl directory was introduced in 5.005,
4589 so that is the lowest possible value.
4590 Since this can depend on compile time options
4591 it is set by Configure. Other non-default sources
4592 of potential incompatibility, such as multiplicity, threads,
4593 debugging, 64bits, sfio, etc., are not checked for currently,
4594 though in principle we could go snooping around in old
4598 This variable contains any additional yacc flags desired by the
4599 user. It is up to the Makefile to use this.
4602 This variable is defined but not used by Configure.
4603 The value is a plain '' and is not useful.
4606 This variable is used internally by Configure to determine the
4607 full pathname (if any) of the zip program. After Configure runs,
4608 the value is reset to a plain "zip" and is not useful.