2 !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
3 This file is built by metaconfig.
5 This file contains a description of all the shell variables whose value is
6 determined by the Configure script. Variables intended for use in C
7 programs (e.g. I_UNISTD) are already described in config_h.SH. [`configpm'
8 generates pod documentation for Config.pm from this file--please try to keep
9 the formatting regular.]
12 This variable defines the extension used for ordinary library files.
13 For unix, it is '.a'. The '.' is included. Other possible
14 values include '.lib'.
17 This variable defines the extension used for executable files.
18 DJGPP, Cygwin and OS/2 use '.exe'. Stratus VOS uses '.pm'.
19 On operating systems which do not require a specific extension
20 for executable files, this variable is empty.
23 This variable defines the extension used for object files.
24 For unix, it is '.o'. The '.' is included. Other possible
25 values include '.obj'.
28 This variable is set to 'true' if AFS (Andrew File System) is used
29 on the system, 'false' otherwise. It is possible to override this
30 with a hint value or command line option, but you'd better know
34 This variable is by default set to '/afs'. In the unlikely case
35 this is not the correct root, it is possible to override this with
36 a hint value or command line option. This will be used in subsequent
37 tests for AFSness in the Perl configure and test process.
39 alignbytes (alignbytes.U):
40 This variable holds the number of bytes required to align a
41 double-- or a long double when applicable. Usual values are
42 2, 4 and 8. The default is eight, for safety.
44 ansi2knr (ansi2knr.U):
45 This variable is set if the user needs to run ansi2knr.
46 Currently, this is not supported, so we just abort.
48 aphostname (d_gethname.U):
49 This variable contains the command which can be used to compute the
50 host name. The command is fully qualified by its absolute path, to make
51 it safe when used by a process with super-user privileges.
53 api_revision (patchlevel.U):
54 The three variables, api_revision, api_version, and
55 api_subversion, specify the version of the oldest perl binary
56 compatible with the present perl. In a full version string
57 such as '5.6.1', api_revision is the '5'.
58 Prior to 5.5.640, the format was a floating point number,
61 perl.c:incpush() and lib/lib.pm will automatically search in
62 $sitelib/.. for older directories back to the limit specified
63 by these api_ variables. This is only useful if you have a
64 perl library directory tree structured like the default one.
65 See INSTALL for how this works. The versioned site_perl
66 directory was introduced in 5.005, so that is the lowest
67 possible value. The version list appropriate for the current
68 system is determined in inc_version_list.U.
70 XXX To do: Since compatibility can depend on compile time
71 options (such as bincompat, longlong, etc.) it should
72 (perhaps) be set by Configure, but currently it isn't.
73 Currently, we read a hard-wired value from patchlevel.h.
74 Perhaps what we ought to do is take the hard-wired value from
75 patchlevel.h but then modify it if the current Configure
76 options warrant. patchlevel.h then would use an #ifdef guard.
78 api_subversion (patchlevel.U):
79 The three variables, api_revision, api_version, and
80 api_subversion, specify the version of the oldest perl binary
81 compatible with the present perl. In a full version string
82 such as '5.6.1', api_subversion is the '1'. See api_revision for
85 api_version (patchlevel.U):
86 The three variables, api_revision, api_version, and
87 api_subversion, specify the version of the oldest perl binary
88 compatible with the present perl. In a full version string
89 such as '5.6.1', api_version is the '6'. See api_revision for
90 full details. As a special case, 5.5.0 is rendered in the
91 old-style as 5.005. (In the 5.005_0x maintenance series,
92 this was the only versioned directory in $sitelib.)
94 api_versionstring (patchlevel.U):
95 This variable combines api_revision, api_version, and
96 api_subversion in a format such as 5.6.1 (or 5_6_1) suitable
97 for use as a directory name. This is filesystem dependent.
100 This variable is used internally by Configure to determine the
101 full pathname (if any) of the ar program. After Configure runs,
102 the value is reset to a plain "ar" and is not useful.
105 This variable holds the name of the directory in which the user wants
106 to put architecture-dependent public library files for $package.
107 It is most often a local directory such as /usr/local/lib.
108 Programs using this variable must be prepared to deal
109 with filename expansion.
111 archlibexp (archlib.U):
112 This variable is the same as the archlib variable, but is
113 filename expanded at configuration time, for convenient use.
115 archname64 (use64bits.U):
116 This variable is used for the 64-bitness part of $archname.
118 archname (archname.U):
119 This variable is a short name to characterize the current
120 architecture. It is used mainly to construct the default archlib.
123 This variable defines any additional objects that must be linked
124 in with the program on this architecture. On unix, it is usually
125 empty. It is typically used to include emulations of unix calls
126 or other facilities. For perl on OS/2, for example, this would
129 asctime_r_proto (d_asctime_r.U):
130 This variable encodes the prototype of asctime_r.
131 It is zero if d_asctime_r is undef, and one of the
132 REENTRANT_PROTO_T_ABC macros of reentr.h if d_asctime_r
136 This variable is used internally by Configure to determine the
137 full pathname (if any) of the awk program. After Configure runs,
138 the value is reset to a plain "awk" and is not useful.
141 The base revision level of this package, from the .package file.
144 This variable is defined but not used by Configure.
145 The value is a plain '' and is not useful.
148 This variable holds the name of the directory in which the user wants
149 to put publicly executable images for the package in question. It
150 is most often a local directory such as /usr/local/bin. Programs using
151 this variable must be prepared to deal with ~name substitution.
154 This is the same as the bin variable, but is filename expanded at
155 configuration time, for use in your makefiles.
158 This variable is used internally by Configure to determine the
159 full pathname (if any) of the bison program. After Configure runs,
160 the value is reset to a plain "bison" and is not useful.
163 This variable is used internally by Configure to determine the
164 full pathname (if any) of the byacc program. After Configure runs,
165 the value is reset to a plain "byacc" and is not useful.
167 byteorder (byteorder.U):
168 This variable holds the byte order in a UV. In the following,
169 larger digits indicate more significance. The variable byteorder
170 is either 4321 on a big-endian machine, or 1234 on a little-endian,
171 or 87654321 on a Cray ... or 3412 with weird order !
174 This variable contains the \c string if that is what causes the echo
175 command to suppress newline. Otherwise it is null. Correct usage is
176 $echo $n "prompt for a question: $c".
178 castflags (d_castneg.U):
179 This variable contains a flag that precise difficulties the
180 compiler has casting odd floating values to unsigned long:
182 1 = couldn't cast < 0
183 2 = couldn't cast >= 0x80000000
184 4 = couldn't cast in argument expression list
187 This variable is used internally by Configure to determine the
188 full pathname (if any) of the cat program. After Configure runs,
189 the value is reset to a plain "cat" and is not useful.
192 This variable holds the name of a command to execute a C compiler which
193 can resolve multiple global references that happen to have the same
194 name. Usual values are 'cc' and 'gcc'.
195 Fervent ANSI compilers may be called 'c89'. AIX has xlc.
197 cccdlflags (dlsrc.U):
198 This variable contains any special flags that might need to be
199 passed with 'cc -c' to compile modules to be used to create a shared
200 library that will be used for dynamic loading. For hpux, this
201 should be +z. It is up to the makefile to use it.
204 This variable contains any special flags that might need to be
205 passed to cc to link with a shared library for dynamic loading.
206 It is up to the makefile to use it. For sunos 4.1, it should
210 This variable contains any additional C compiler flags desired by
211 the user. It is up to the Makefile to use this.
213 ccflags_uselargefiles (uselfs.U):
214 This variable contains the compiler flags needed by large file builds
215 and added to ccflags by hints files.
218 This can set either by hints files or by Configure. If using
219 gcc, this is gcc, and if not, usually equal to cc, unimpressive, no?
220 Some platforms, however, make good use of this by storing the
221 flavor of the C compiler being used here. For example if using
222 the Sun WorkShop suite, ccname will be 'workshop'.
224 ccsymbols (Cppsym.U):
225 The variable contains the symbols defined by the C compiler alone.
226 The symbols defined by cpp or by cc when it calls cpp are not in
227 this list, see cppsymbols and cppccsymbols.
228 The list is a space-separated list of symbol=value tokens.
230 ccversion (Checkcc.U):
231 This can set either by hints files or by Configure. If using
232 a (non-gcc) vendor cc, this variable may contain a version for
236 Login name of the person who ran the Configure script and answered the
237 questions. This is used to tag both config.sh and config_h.SH.
239 cf_email (cf_email.U):
240 Electronic mail address of the person who ran Configure. This can be
241 used by units that require the user's e-mail, like MailList.U.
244 Holds the output of the "date" command when the configuration file was
245 produced. This is used to tag both config.sh and config_h.SH.
247 charsize (charsize.U):
248 This variable contains the value of the CHARSIZE symbol, which
249 indicates to the C program how many bytes there are in a character.
252 This variable is defined but not used by Configure.
253 The value is a plain '' and is not useful.
256 This variable is used internally by Configure to determine the
257 full pathname (if any) of the chmod program. After Configure runs,
258 the value is reset to a plain "chmod" and is not useful.
261 This variable is defined but not used by Configure.
262 The value is a plain '' and is not useful.
264 clocktype (d_times.U):
265 This variable holds the type returned by times(). It can be long,
266 or clock_t on BSD sites (in which case <sys/types.h> should be
270 This variable is used internally by Configure to determine the
271 full pathname (if any) of the comm program. After Configure runs,
272 the value is reset to a plain "comm" and is not useful.
275 This variable is defined but not used by Configure.
276 The value is a plain '' and is not useful.
278 contains (contains.U):
279 This variable holds the command to do a grep with a proper return
280 status. On most sane systems it is simply "grep". On insane systems
281 it is a grep followed by a cat followed by a test. This variable
282 is primarily for the use of other Configure units.
285 This variable is used internally by Configure to determine the
286 full pathname (if any) of the cp program. After Configure runs,
287 the value is reset to a plain "cp" and is not useful.
290 This variable is defined but not used by Configure.
291 The value is a plain '' and is not useful.
294 This variable is used internally by Configure to determine the
295 full pathname (if any) of the cpp program. After Configure runs,
296 the value is reset to a plain "cpp" and is not useful.
298 cpp_stuff (cpp_stuff.U):
299 This variable contains an identification of the concatenation mechanism
300 used by the C preprocessor.
302 cppccsymbols (Cppsym.U):
303 The variable contains the symbols defined by the C compiler
304 when it calls cpp. The symbols defined by the cc alone or cpp
305 alone are not in this list, see ccsymbols and cppsymbols.
306 The list is a space-separated list of symbol=value tokens.
308 cppflags (ccflags.U):
309 This variable holds the flags that will be passed to the C pre-
310 processor. It is up to the Makefile to use it.
312 cpplast (cppstdin.U):
313 This variable has the same functionality as cppminus, only it applies
314 to cpprun and not cppstdin.
316 cppminus (cppstdin.U):
317 This variable contains the second part of the string which will invoke
318 the C preprocessor on the standard input and produce to standard
319 output. This variable will have the value "-" if cppstdin needs
320 a minus to specify standard input, otherwise the value is "".
323 This variable contains the command which will invoke a C preprocessor
324 on standard input and put the output to stdout. It is guaranteed not
325 to be a wrapper and may be a null string if no preprocessor can be
326 made directly available. This preprocessor might be different from the
327 one used by the C compiler. Don't forget to append cpplast after the
328 preprocessor options.
330 cppstdin (cppstdin.U):
331 This variable contains the command which will invoke the C
332 preprocessor on standard input and put the output to stdout.
333 It is primarily used by other Configure units that ask about
334 preprocessor symbols.
336 cppsymbols (Cppsym.U):
337 The variable contains the symbols defined by the C preprocessor
338 alone. The symbols defined by cc or by cc when it calls cpp are
339 not in this list, see ccsymbols and cppccsymbols.
340 The list is a space-separated list of symbol=value tokens.
342 crypt_r_proto (d_crypt_r.U):
343 This variable encodes the prototype of crypt_r.
344 It is zero if d_crypt_r is undef, and one of the
345 REENTRANT_PROTO_T_ABC macros of reentr.h if d_crypt_r
348 cryptlib (d_crypt.U):
349 This variable holds -lcrypt or the path to a libcrypt.a archive if
350 the crypt() function is not defined in the standard C library. It is
351 up to the Makefile to use this.
354 This variable is used internally by Configure to determine the
355 full pathname (if any) of the csh program. After Configure runs,
356 the value is reset to a plain "csh" and is not useful.
358 ctermid_r_proto (d_ctermid_r.U):
359 This variable encodes the prototype of ctermid_r.
360 It is zero if d_ctermid_r is undef, and one of the
361 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ctermid_r
364 ctime_r_proto (d_ctime_r.U):
365 This variable encodes the prototype of ctime_r.
366 It is zero if d_ctime_r is undef, and one of the
367 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ctime_r
370 d__fwalk (d__fwalk.U):
371 This variable conditionally defines HAS__FWALK if _fwalk() is
372 available to apply a function to all the file handles.
374 d_access (d_access.U):
375 This variable conditionally defines HAS_ACCESS if the access() system
376 call is available to check for access permissions using real IDs.
378 d_accessx (d_accessx.U):
379 This variable conditionally defines the HAS_ACCESSX symbol, which
380 indicates to the C program that the accessx() routine is available.
383 This variable conditionally defines the HAS_AINTL symbol, which
384 indicates to the C program that the aintl() routine is available.
385 If copysignl is also present we can emulate modfl.
388 This variable conditionally defines the HAS_ALARM symbol, which
389 indicates to the C program that the alarm() routine is available.
391 d_archlib (archlib.U):
392 This variable conditionally defines ARCHLIB to hold the pathname
393 of architecture-dependent library files for $package. If
394 $archlib is the same as $privlib, then this is set to undef.
396 d_asctime_r (d_asctime_r.U):
397 This variable conditionally defines the HAS_ASCTIME_R symbol,
398 which indicates to the C program that the asctime_r()
399 routine is available.
402 This variable conditionally defines the HAS_ATOLF symbol, which
403 indicates to the C program that the atolf() routine is available.
406 This variable conditionally defines the HAS_ATOLL symbol, which
407 indicates to the C program that the atoll() routine is available.
409 d_attribute_format (d_attribut_format.U):
410 This variable conditionally defines HASATTRIBUTE_FORMAT, which
411 indicates the C compiler can check for printf-like formats.
413 d_attribute_malloc (d_attribute_malloc.U):
414 This variable conditionally defines HASATTRIBUTE_MALLOC, which
415 indicates the C compiler can understand functions as having
416 malloc-like semantics.
418 d_attribute_nonnull (d_attribute_nonnull.U):
419 This variable conditionally defines HASATTRIBUTE_NONNULL, which
420 indicates that the C compiler can know that certain arguments
421 must not be NULL, and will check accordingly at compile time.
423 d_attribute_noreturn (d_attribute_noreturn.U):
424 This variable conditionally defines HASATTRIBUTE_NORETURN, which
425 indicates that the C compiler can know that certain functions
426 are guaranteed never to return.
428 d_attribute_pure (d_attribute_pure.U):
429 This variable conditionally defines HASATTRIBUTE_PURE, which
430 indicates that the C compiler can know that certain functions
431 are "pure" functions, meaning that they have no side effects, and
432 only rely on function input and/or global data for their results.
434 d_attribute_unused (d_attribute_unused.U):
435 This variable conditionally defines HASATTRIBUTE_UNUSED, which
436 indicates that the C compiler can know that certain variables
437 and arguments may not always be used, and to not throw warnings
438 if they don't get used.
440 d_attribute_warn_unused_result (d_attribute_warn_unused_result.U):
441 This variable conditionally defines
442 HASATTRIBUTE_WARN_UNUSED_RESULT, which indicates that the C
443 compiler can know that certain functions have a return values
444 that must not be ignored, such as malloc() or open().
447 This variable conditionally defines the HAS_BCMP symbol if
448 the bcmp() routine is available to compare strings.
451 This variable conditionally defines the HAS_BCOPY symbol if
452 the bcopy() routine is available to copy strings.
455 This symbol conditionally defines the symbol BSD when running on a
458 d_bsdgetpgrp (d_getpgrp.U):
459 This variable conditionally defines USE_BSD_GETPGRP if
460 getpgrp needs one arguments whereas USG one needs none.
462 d_bsdsetpgrp (d_setpgrp.U):
463 This variable conditionally defines USE_BSD_SETPGRP if
464 setpgrp needs two arguments whereas USG one needs none.
465 See also d_setpgid for a POSIX interface.
468 This variable conditionally defines the HAS_BZERO symbol if
469 the bzero() routine is available to set memory to 0.
471 d_casti32 (d_casti32.U):
472 This variable conditionally defines CASTI32, which indicates
473 whether the C compiler can cast large floats to 32-bit ints.
475 d_castneg (d_castneg.U):
476 This variable conditionally defines CASTNEG, which indicates
477 wether the C compiler can cast negative float to unsigned.
479 d_charvspr (d_vprintf.U):
480 This variable conditionally defines CHARVSPRINTF if this system
481 has vsprintf returning type (char*). The trend seems to be to
482 declare it as "int vsprintf()".
485 This variable conditionally defines the HAS_CHOWN symbol, which
486 indicates to the C program that the chown() routine is available.
488 d_chroot (d_chroot.U):
489 This variable conditionally defines the HAS_CHROOT symbol, which
490 indicates to the C program that the chroot() routine is available.
492 d_chsize (d_chsize.U):
493 This variable conditionally defines the CHSIZE symbol, which
494 indicates to the C program that the chsize() routine is available
495 to truncate files. You might need a -lx to get this routine.
498 This variable conditionally defines the HAS_CLASS symbol, which
499 indicates to the C program that the class() routine is available.
501 d_clearenv (d_clearenv.U):
502 This variable conditionally defines the HAS_CLEARENV symbol, which
503 indicates to the C program that the clearenv () routine is available.
505 d_closedir (d_closedir.U):
506 This variable conditionally defines HAS_CLOSEDIR if closedir() is
509 d_cmsghdr_s (d_cmsghdr_s.U):
510 This variable conditionally defines the HAS_STRUCT_CMSGHDR symbol,
511 which indicates that the struct cmsghdr is supported.
514 This variable conditionally defines the HASCONST symbol, which
515 indicates to the C program that this C compiler knows about the
518 d_copysignl (d_copysignl.U):
519 This variable conditionally defines the HAS_COPYSIGNL symbol, which
520 indicates to the C program that the copysignl() routine is available.
521 If aintl is also present we can emulate modfl.
524 This variable conditionally defines the CRYPT symbol, which
525 indicates to the C program that the crypt() routine is available
526 to encrypt passwords and the like.
528 d_crypt_r (d_crypt_r.U):
529 This variable conditionally defines the HAS_CRYPT_R symbol,
530 which indicates to the C program that the crypt_r()
531 routine is available.
534 This variable conditionally defines the CSH symbol, which
535 indicates to the C program that the C-shell exists.
537 d_ctermid_r (d_ctermid_r.U):
538 This variable conditionally defines the HAS_CTERMID_R symbol,
539 which indicates to the C program that the ctermid_r()
540 routine is available.
542 d_ctime_r (d_ctime_r.U):
543 This variable conditionally defines the HAS_CTIME_R symbol,
544 which indicates to the C program that the ctime_r()
545 routine is available.
547 d_cuserid (d_cuserid.U):
548 This variable conditionally defines the HAS_CUSERID symbol, which
549 indicates to the C program that the cuserid() routine is available
550 to get character login names.
552 d_dbl_dig (d_dbl_dig.U):
553 This variable conditionally defines d_dbl_dig if this system's
554 header files provide DBL_DIG, which is the number of significant
555 digits in a double precision number.
557 d_dbminitproto (d_dbminitproto.U):
558 This variable conditionally defines the HAS_DBMINIT_PROTO symbol,
559 which indicates to the C program that the system provides
560 a prototype for the dbminit() function. Otherwise, it is
561 up to the program to supply one.
563 d_difftime (d_difftime.U):
564 This variable conditionally defines the HAS_DIFFTIME symbol, which
565 indicates to the C program that the difftime() routine is available.
568 This variable conditionally defines the HAS_DIRFD constant,
569 which indicates to the C program that dirfd() is available
570 to return the file descriptor of a directory stream.
572 d_dirnamlen (i_dirent.U):
573 This variable conditionally defines DIRNAMLEN, which indicates
574 to the C program that the length of directory entry names is
575 provided by a d_namelen field.
577 d_dlerror (d_dlerror.U):
578 This variable conditionally defines the HAS_DLERROR symbol, which
579 indicates to the C program that the dlerror() routine is available.
581 d_dlopen (d_dlopen.U):
582 This variable conditionally defines the HAS_DLOPEN symbol, which
583 indicates to the C program that the dlopen() routine is available.
585 d_dlsymun (d_dlsymun.U):
586 This variable conditionally defines DLSYM_NEEDS_UNDERSCORE, which
587 indicates that we need to prepend an underscore to the symbol
588 name before calling dlsym().
590 d_dosuid (d_dosuid.U):
591 This variable conditionally defines the symbol DOSUID, which
592 tells the C program that it should insert setuid emulation code
593 on hosts which have setuid #! scripts disabled.
595 d_drand48_r (d_drand48_r.U):
596 This variable conditionally defines the HAS_DRAND48_R symbol,
597 which indicates to the C program that the drand48_r()
598 routine is available.
600 d_drand48proto (d_drand48proto.U):
601 This variable conditionally defines the HAS_DRAND48_PROTO symbol,
602 which indicates to the C program that the system provides
603 a prototype for the drand48() function. Otherwise, it is
604 up to the program to supply one.
607 This variable conditionally defines HAS_DUP2 if dup2() is
608 available to duplicate file descriptors.
610 d_eaccess (d_eaccess.U):
611 This variable conditionally defines the HAS_EACCESS symbol, which
612 indicates to the C program that the eaccess() routine is available.
614 d_endgrent (d_endgrent.U):
615 This variable conditionally defines the HAS_ENDGRENT symbol, which
616 indicates to the C program that the endgrent() routine is available
617 for sequential access of the group database.
619 d_endgrent_r (d_endgrent_r.U):
620 This variable conditionally defines the HAS_ENDGRENT_R symbol,
621 which indicates to the C program that the endgrent_r()
622 routine is available.
624 d_endhent (d_endhent.U):
625 This variable conditionally defines HAS_ENDHOSTENT if endhostent() is
626 available to close whatever was being used for host queries.
628 d_endhostent_r (d_endhostent_r.U):
629 This variable conditionally defines the HAS_ENDHOSTENT_R symbol,
630 which indicates to the C program that the endhostent_r()
631 routine is available.
633 d_endnent (d_endnent.U):
634 This variable conditionally defines HAS_ENDNETENT if endnetent() is
635 available to close whatever was being used for network queries.
637 d_endnetent_r (d_endnetent_r.U):
638 This variable conditionally defines the HAS_ENDNETENT_R symbol,
639 which indicates to the C program that the endnetent_r()
640 routine is available.
642 d_endpent (d_endpent.U):
643 This variable conditionally defines HAS_ENDPROTOENT if endprotoent() is
644 available to close whatever was being used for protocol queries.
646 d_endprotoent_r (d_endprotoent_r.U):
647 This variable conditionally defines the HAS_ENDPROTOENT_R symbol,
648 which indicates to the C program that the endprotoent_r()
649 routine is available.
651 d_endpwent (d_endpwent.U):
652 This variable conditionally defines the HAS_ENDPWENT symbol, which
653 indicates to the C program that the endpwent() routine is available
654 for sequential access of the passwd database.
656 d_endpwent_r (d_endpwent_r.U):
657 This variable conditionally defines the HAS_ENDPWENT_R symbol,
658 which indicates to the C program that the endpwent_r()
659 routine is available.
661 d_endsent (d_endsent.U):
662 This variable conditionally defines HAS_ENDSERVENT if endservent() is
663 available to close whatever was being used for service queries.
665 d_endservent_r (d_endservent_r.U):
666 This variable conditionally defines the HAS_ENDSERVENT_R symbol,
667 which indicates to the C program that the endservent_r()
668 routine is available.
670 d_eofnblk (nblock_io.U):
671 This variable conditionally defines EOF_NONBLOCK if EOF can be seen
672 when reading from a non-blocking I/O source.
675 This variable conditionally defines the symbols EUNICE and VAX, which
676 alerts the C program that it must deal with ideosyncracies of VMS.
678 d_faststdio (d_faststdio.U):
679 This variable conditionally defines the HAS_FAST_STDIO symbol,
680 which indicates to the C program that the "fast stdio" is available
681 to manipulate the stdio buffers directly.
683 d_fchdir (d_fchdir.U):
684 This variable conditionally defines the HAS_FCHDIR symbol, which
685 indicates to the C program that the fchdir() routine is available.
687 d_fchmod (d_fchmod.U):
688 This variable conditionally defines the HAS_FCHMOD symbol, which
689 indicates to the C program that the fchmod() routine is available
690 to change mode of opened files.
692 d_fchown (d_fchown.U):
693 This variable conditionally defines the HAS_FCHOWN symbol, which
694 indicates to the C program that the fchown() routine is available
695 to change ownership of opened files.
698 This variable conditionally defines the HAS_FCNTL symbol, and indicates
699 whether the fcntl() function exists
701 d_fcntl_can_lock (d_fcntl_can_lock.U):
702 This variable conditionally defines the FCNTL_CAN_LOCK symbol
703 and indicates whether file locking with fcntl() works.
705 d_fd_macros (d_fd_set.U):
706 This variable contains the eventual value of the HAS_FD_MACROS symbol,
707 which indicates if your C compiler knows about the macros which
708 manipulate an fd_set.
710 d_fd_set (d_fd_set.U):
711 This variable contains the eventual value of the HAS_FD_SET symbol,
712 which indicates if your C compiler knows about the fd_set typedef.
714 d_fds_bits (d_fd_set.U):
715 This variable contains the eventual value of the HAS_FDS_BITS symbol,
716 which indicates if your fd_set typedef contains the fds_bits member.
717 If you have an fd_set typedef, but the dweebs who installed it did
718 a half-fast job and neglected to provide the macros to manipulate
719 an fd_set, HAS_FDS_BITS will let us know how to fix the gaffe.
721 d_fgetpos (d_fgetpos.U):
722 This variable conditionally defines HAS_FGETPOS if fgetpos() is
723 available to get the file position indicator.
725 d_finite (d_finite.U):
726 This variable conditionally defines the HAS_FINITE symbol, which
727 indicates to the C program that the finite() routine is available.
729 d_finitel (d_finitel.U):
730 This variable conditionally defines the HAS_FINITEL symbol, which
731 indicates to the C program that the finitel() routine is available.
733 d_flexfnam (d_flexfnam.U):
734 This variable conditionally defines the FLEXFILENAMES symbol, which
735 indicates that the system supports filenames longer than 14 characters.
738 This variable conditionally defines HAS_FLOCK if flock() is
739 available to do file locking.
741 d_flockproto (d_flockproto.U):
742 This variable conditionally defines the HAS_FLOCK_PROTO symbol,
743 which indicates to the C program that the system provides
744 a prototype for the flock() function. Otherwise, it is
745 up to the program to supply one.
748 This variable conditionally defines the HAS_FORK symbol, which
749 indicates to the C program that the fork() routine is available.
751 d_fp_class (d_fp_class.U):
752 This variable conditionally defines the HAS_FP_CLASS symbol, which
753 indicates to the C program that the fp_class() routine is available.
755 d_fpathconf (d_pathconf.U):
756 This variable conditionally defines the HAS_FPATHCONF symbol, which
757 indicates to the C program that the pathconf() routine is available
758 to determine file-system related limits and options associated
759 with a given open file descriptor.
761 d_fpclass (d_fpclass.U):
762 This variable conditionally defines the HAS_FPCLASS symbol, which
763 indicates to the C program that the fpclass() routine is available.
765 d_fpclassify (d_fpclassify.U):
766 This variable conditionally defines the HAS_FPCLASSIFY symbol, which
767 indicates to the C program that the fpclassify() routine is available.
769 d_fpclassl (d_fpclassl.U):
770 This variable conditionally defines the HAS_FPCLASSL symbol, which
771 indicates to the C program that the fpclassl() routine is available.
773 d_fpos64_t (d_fpos64_t.U):
774 This symbol will be defined if the C compiler supports fpos64_t.
776 d_frexpl (d_frexpl.U):
777 This variable conditionally defines the HAS_FREXPL symbol, which
778 indicates to the C program that the frexpl() routine is available.
780 d_fs_data_s (d_fs_data_s.U):
781 This variable conditionally defines the HAS_STRUCT_FS_DATA symbol,
782 which indicates that the struct fs_data is supported.
784 d_fseeko (d_fseeko.U):
785 This variable conditionally defines the HAS_FSEEKO symbol, which
786 indicates to the C program that the fseeko() routine is available.
788 d_fsetpos (d_fsetpos.U):
789 This variable conditionally defines HAS_FSETPOS if fsetpos() is
790 available to set the file position indicator.
792 d_fstatfs (d_fstatfs.U):
793 This variable conditionally defines the HAS_FSTATFS symbol, which
794 indicates to the C program that the fstatfs() routine is available.
796 d_fstatvfs (d_statvfs.U):
797 This variable conditionally defines the HAS_FSTATVFS symbol, which
798 indicates to the C program that the fstatvfs() routine is available.
801 This variable conditionally defines the HAS_FSYNC symbol, which
802 indicates to the C program that the fsync() routine is available.
804 d_ftello (d_ftello.U):
805 This variable conditionally defines the HAS_FTELLO symbol, which
806 indicates to the C program that the ftello() routine is available.
809 This variable conditionally defines the HAS_FTIME symbol, which indicates
810 that the ftime() routine exists. The ftime() routine is basically
811 a sub-second accuracy clock.
813 d_Gconvert (d_gconvert.U):
814 This variable holds what Gconvert is defined as to convert
815 floating point numbers into strings. By default, Configure
816 sets this macro to use the first of gconvert, gcvt, or sprintf
817 that pass sprintf-%g-like behaviour tests. If perl is using
818 long doubles, the macro uses the first of the following
819 functions that pass Configure's tests: qgcvt, sprintf (if
820 Configure knows how to make sprintf format long doubles--see
821 sPRIgldbl), gconvert, gcvt, and sprintf (casting to double).
822 The gconvert_preference and gconvert_ld_preference variables
823 can be used to alter Configure's preferences, for doubles and
824 long doubles, respectively. If present, they contain a
825 space-separated list of one or more of the above function
826 names in the order they should be tried.
828 d_Gconvert may be set to override Configure with a platform-
829 specific function. If this function expects a double, a
830 different value may need to be set by the uselongdouble.cbu
831 call-back unit so that long doubles can be formatted without
834 d_getcwd (d_getcwd.U):
835 This variable conditionally defines the HAS_GETCWD symbol, which
836 indicates to the C program that the getcwd() routine is available
837 to get the current working directory.
839 d_getespwnam (d_getespwnam.U):
840 This variable conditionally defines HAS_GETESPWNAM if getespwnam() is
841 available to retrieve enchanced (shadow) password entries by name.
843 d_getfsstat (d_getfsstat.U):
844 This variable conditionally defines the HAS_GETFSSTAT symbol, which
845 indicates to the C program that the getfsstat() routine is available.
847 d_getgrent (d_getgrent.U):
848 This variable conditionally defines the HAS_GETGRENT symbol, which
849 indicates to the C program that the getgrent() routine is available
850 for sequential access of the group database.
852 d_getgrent_r (d_getgrent_r.U):
853 This variable conditionally defines the HAS_GETGRENT_R symbol,
854 which indicates to the C program that the getgrent_r()
855 routine is available.
857 d_getgrgid_r (d_getgrgid_r.U):
858 This variable conditionally defines the HAS_GETGRGID_R symbol,
859 which indicates to the C program that the getgrgid_r()
860 routine is available.
862 d_getgrnam_r (d_getgrnam_r.U):
863 This variable conditionally defines the HAS_GETGRNAM_R symbol,
864 which indicates to the C program that the getgrnam_r()
865 routine is available.
867 d_getgrps (d_getgrps.U):
868 This variable conditionally defines the HAS_GETGROUPS symbol, which
869 indicates to the C program that the getgroups() routine is available
870 to get the list of process groups.
872 d_gethbyaddr (d_gethbyad.U):
873 This variable conditionally defines the HAS_GETHOSTBYADDR symbol, which
874 indicates to the C program that the gethostbyaddr() routine is available
875 to look up hosts by their IP addresses.
877 d_gethbyname (d_gethbynm.U):
878 This variable conditionally defines the HAS_GETHOSTBYNAME symbol, which
879 indicates to the C program that the gethostbyname() routine is available
880 to look up host names in some data base or other.
882 d_gethent (d_gethent.U):
883 This variable conditionally defines HAS_GETHOSTENT if gethostent() is
884 available to look up host names in some data base or another.
886 d_gethname (d_gethname.U):
887 This variable conditionally defines the HAS_GETHOSTNAME symbol, which
888 indicates to the C program that the gethostname() routine may be
889 used to derive the host name.
891 d_gethostbyaddr_r (d_gethostbyaddr_r.U):
892 This variable conditionally defines the HAS_GETHOSTBYADDR_R symbol,
893 which indicates to the C program that the gethostbyaddr_r()
894 routine is available.
896 d_gethostbyname_r (d_gethostbyname_r.U):
897 This variable conditionally defines the HAS_GETHOSTBYNAME_R symbol,
898 which indicates to the C program that the gethostbyname_r()
899 routine is available.
901 d_gethostent_r (d_gethostent_r.U):
902 This variable conditionally defines the HAS_GETHOSTENT_R symbol,
903 which indicates to the C program that the gethostent_r()
904 routine is available.
906 d_gethostprotos (d_gethostprotos.U):
907 This variable conditionally defines the HAS_GETHOST_PROTOS symbol,
908 which indicates to the C program that <netdb.h> supplies
909 prototypes for the various gethost*() functions.
910 See also netdbtype.U for probing for various netdb types.
912 d_getitimer (d_getitimer.U):
913 This variable conditionally defines the HAS_GETITIMER symbol, which
914 indicates to the C program that the getitimer() routine is available.
916 d_getlogin (d_getlogin.U):
917 This variable conditionally defines the HAS_GETLOGIN symbol, which
918 indicates to the C program that the getlogin() routine is available
919 to get the login name.
921 d_getlogin_r (d_getlogin_r.U):
922 This variable conditionally defines the HAS_GETLOGIN_R symbol,
923 which indicates to the C program that the getlogin_r()
924 routine is available.
926 d_getmnt (d_getmnt.U):
927 This variable conditionally defines the HAS_GETMNT symbol, which
928 indicates to the C program that the getmnt() routine is available
929 to retrieve one or more mount info blocks by filename.
931 d_getmntent (d_getmntent.U):
932 This variable conditionally defines the HAS_GETMNTENT symbol, which
933 indicates to the C program that the getmntent() routine is available
934 to iterate through mounted files to get their mount info.
936 d_getnbyaddr (d_getnbyad.U):
937 This variable conditionally defines the HAS_GETNETBYADDR symbol, which
938 indicates to the C program that the getnetbyaddr() routine is available
939 to look up networks by their IP addresses.
941 d_getnbyname (d_getnbynm.U):
942 This variable conditionally defines the HAS_GETNETBYNAME symbol, which
943 indicates to the C program that the getnetbyname() routine is available
944 to look up networks by their names.
946 d_getnent (d_getnent.U):
947 This variable conditionally defines HAS_GETNETENT if getnetent() is
948 available to look up network names in some data base or another.
950 d_getnetbyaddr_r (d_getnetbyaddr_r.U):
951 This variable conditionally defines the HAS_GETNETBYADDR_R symbol,
952 which indicates to the C program that the getnetbyaddr_r()
953 routine is available.
955 d_getnetbyname_r (d_getnetbyname_r.U):
956 This variable conditionally defines the HAS_GETNETBYNAME_R symbol,
957 which indicates to the C program that the getnetbyname_r()
958 routine is available.
960 d_getnetent_r (d_getnetent_r.U):
961 This variable conditionally defines the HAS_GETNETENT_R symbol,
962 which indicates to the C program that the getnetent_r()
963 routine is available.
965 d_getnetprotos (d_getnetprotos.U):
966 This variable conditionally defines the HAS_GETNET_PROTOS symbol,
967 which indicates to the C program that <netdb.h> supplies
968 prototypes for the various getnet*() functions.
969 See also netdbtype.U for probing for various netdb types.
971 d_getpagsz (d_getpagsz.U):
972 This variable conditionally defines HAS_GETPAGESIZE if getpagesize()
973 is available to get the system page size.
975 d_getpbyname (d_getprotby.U):
976 This variable conditionally defines the HAS_GETPROTOBYNAME
977 symbol, which indicates to the C program that the
978 getprotobyname() routine is available to look up protocols
981 d_getpbynumber (d_getprotby.U):
982 This variable conditionally defines the HAS_GETPROTOBYNUMBER
983 symbol, which indicates to the C program that the
984 getprotobynumber() routine is available to look up protocols
987 d_getpent (d_getpent.U):
988 This variable conditionally defines HAS_GETPROTOENT if getprotoent() is
989 available to look up protocols in some data base or another.
991 d_getpgid (d_getpgid.U):
992 This variable conditionally defines the HAS_GETPGID symbol, which
993 indicates to the C program that the getpgid(pid) function
994 is available to get the process group id.
996 d_getpgrp2 (d_getpgrp2.U):
997 This variable conditionally defines the HAS_GETPGRP2 symbol, which
998 indicates to the C program that the getpgrp2() (as in DG/UX) routine
999 is available to get the current process group.
1001 d_getpgrp (d_getpgrp.U):
1002 This variable conditionally defines HAS_GETPGRP if getpgrp() is
1003 available to get the current process group.
1005 d_getppid (d_getppid.U):
1006 This variable conditionally defines the HAS_GETPPID symbol, which
1007 indicates to the C program that the getppid() routine is available
1008 to get the parent process ID.
1010 d_getprior (d_getprior.U):
1011 This variable conditionally defines HAS_GETPRIORITY if getpriority()
1012 is available to get a process's priority.
1014 d_getprotobyname_r (d_getprotobyname_r.U):
1015 This variable conditionally defines the HAS_GETPROTOBYNAME_R symbol,
1016 which indicates to the C program that the getprotobyname_r()
1017 routine is available.
1019 d_getprotobynumber_r (d_getprotobynumber_r.U):
1020 This variable conditionally defines the HAS_GETPROTOBYNUMBER_R symbol,
1021 which indicates to the C program that the getprotobynumber_r()
1022 routine is available.
1024 d_getprotoent_r (d_getprotoent_r.U):
1025 This variable conditionally defines the HAS_GETPROTOENT_R symbol,
1026 which indicates to the C program that the getprotoent_r()
1027 routine is available.
1029 d_getprotoprotos (d_getprotoprotos.U):
1030 This variable conditionally defines the HAS_GETPROTO_PROTOS symbol,
1031 which indicates to the C program that <netdb.h> supplies
1032 prototypes for the various getproto*() functions.
1033 See also netdbtype.U for probing for various netdb types.
1035 d_getprpwnam (d_getprpwnam.U):
1036 This variable conditionally defines HAS_GETPRPWNAM if getprpwnam() is
1037 available to retrieve protected (shadow) password entries by name.
1039 d_getpwent (d_getpwent.U):
1040 This variable conditionally defines the HAS_GETPWENT symbol, which
1041 indicates to the C program that the getpwent() routine is available
1042 for sequential access of the passwd database.
1044 d_getpwent_r (d_getpwent_r.U):
1045 This variable conditionally defines the HAS_GETPWENT_R symbol,
1046 which indicates to the C program that the getpwent_r()
1047 routine is available.
1049 d_getpwnam_r (d_getpwnam_r.U):
1050 This variable conditionally defines the HAS_GETPWNAM_R symbol,
1051 which indicates to the C program that the getpwnam_r()
1052 routine is available.
1054 d_getpwuid_r (d_getpwuid_r.U):
1055 This variable conditionally defines the HAS_GETPWUID_R symbol,
1056 which indicates to the C program that the getpwuid_r()
1057 routine is available.
1059 d_getsbyname (d_getsrvby.U):
1060 This variable conditionally defines the HAS_GETSERVBYNAME
1061 symbol, which indicates to the C program that the
1062 getservbyname() routine is available to look up services
1065 d_getsbyport (d_getsrvby.U):
1066 This variable conditionally defines the HAS_GETSERVBYPORT
1067 symbol, which indicates to the C program that the
1068 getservbyport() routine is available to look up services
1071 d_getsent (d_getsent.U):
1072 This variable conditionally defines HAS_GETSERVENT if getservent() is
1073 available to look up network services in some data base or another.
1075 d_getservbyname_r (d_getservbyname_r.U):
1076 This variable conditionally defines the HAS_GETSERVBYNAME_R symbol,
1077 which indicates to the C program that the getservbyname_r()
1078 routine is available.
1080 d_getservbyport_r (d_getservbyport_r.U):
1081 This variable conditionally defines the HAS_GETSERVBYPORT_R symbol,
1082 which indicates to the C program that the getservbyport_r()
1083 routine is available.
1085 d_getservent_r (d_getservent_r.U):
1086 This variable conditionally defines the HAS_GETSERVENT_R symbol,
1087 which indicates to the C program that the getservent_r()
1088 routine is available.
1090 d_getservprotos (d_getservprotos.U):
1091 This variable conditionally defines the HAS_GETSERV_PROTOS symbol,
1092 which indicates to the C program that <netdb.h> supplies
1093 prototypes for the various getserv*() functions.
1094 See also netdbtype.U for probing for various netdb types.
1096 d_getspnam (d_getspnam.U):
1097 This variable conditionally defines HAS_GETSPNAM if getspnam() is
1098 available to retrieve SysV shadow password entries by name.
1100 d_getspnam_r (d_getspnam_r.U):
1101 This variable conditionally defines the HAS_GETSPNAM_R symbol,
1102 which indicates to the C program that the getspnam_r()
1103 routine is available.
1105 d_gettimeod (d_ftime.U):
1106 This variable conditionally defines the HAS_GETTIMEOFDAY symbol, which
1107 indicates that the gettimeofday() system call exists (to obtain a
1108 sub-second accuracy clock). You should probably include <sys/resource.h>.
1110 d_gmtime_r (d_gmtime_r.U):
1111 This variable conditionally defines the HAS_GMTIME_R symbol,
1112 which indicates to the C program that the gmtime_r()
1113 routine is available.
1115 d_gnulibc (d_gnulibc.U):
1116 Defined if we're dealing with the GNU C Library.
1118 d_grpasswd (i_grp.U):
1119 This variable conditionally defines GRPASSWD, which indicates
1120 that struct group in <grp.h> contains gr_passwd.
1122 d_hasmntopt (d_hasmntopt.U):
1123 This variable conditionally defines the HAS_HASMNTOPT symbol, which
1124 indicates to the C program that the hasmntopt() routine is available
1125 to query the mount options of file systems.
1127 d_htonl (d_htonl.U):
1128 This variable conditionally defines HAS_HTONL if htonl() and its
1129 friends are available to do network order byte swapping.
1131 d_ilogbl (d_ilogbl.U):
1132 This variable conditionally defines the HAS_ILOGBL symbol, which
1133 indicates to the C program that the ilogbl() routine is available.
1134 If scalbnl is also present we can emulate frexpl.
1136 d_index (d_strchr.U):
1137 This variable conditionally defines HAS_INDEX if index() and
1138 rindex() are available for string searching.
1140 d_inetaton (d_inetaton.U):
1141 This variable conditionally defines the HAS_INET_ATON symbol, which
1142 indicates to the C program that the inet_aton() function is available
1143 to parse IP address "dotted-quad" strings.
1145 d_int64_t (d_int64_t.U):
1146 This symbol will be defined if the C compiler supports int64_t.
1148 d_isascii (d_isascii.U):
1149 This variable conditionally defines the HAS_ISASCII constant,
1150 which indicates to the C program that isascii() is available.
1152 d_isfinite (d_isfinite.U):
1153 This variable conditionally defines the HAS_ISFINITE symbol, which
1154 indicates to the C program that the isfinite() routine is available.
1156 d_isinf (d_isinf.U):
1157 This variable conditionally defines the HAS_ISINF symbol, which
1158 indicates to the C program that the isinf() routine is available.
1160 d_isnan (d_isnan.U):
1161 This variable conditionally defines the HAS_ISNAN symbol, which
1162 indicates to the C program that the isnan() routine is available.
1164 d_isnanl (d_isnanl.U):
1165 This variable conditionally defines the HAS_ISNANL symbol, which
1166 indicates to the C program that the isnanl() routine is available.
1168 d_killpg (d_killpg.U):
1169 This variable conditionally defines the HAS_KILLPG symbol, which
1170 indicates to the C program that the killpg() routine is available
1171 to kill process groups.
1173 d_lchown (d_lchown.U):
1174 This variable conditionally defines the HAS_LCHOWN symbol, which
1175 indicates to the C program that the lchown() routine is available
1176 to operate on a symbolic link (instead of following the link).
1178 d_ldbl_dig (d_ldbl_dig.U):
1179 This variable conditionally defines d_ldbl_dig if this system's
1180 header files provide LDBL_DIG, which is the number of significant
1181 digits in a long double precision number.
1184 This variable conditionally defines HAS_LINK if link() is
1185 available to create hard links.
1187 d_localtime_r (d_localtime_r.U):
1188 This variable conditionally defines the HAS_LOCALTIME_R symbol,
1189 which indicates to the C program that the localtime_r()
1190 routine is available.
1192 d_locconv (d_locconv.U):
1193 This variable conditionally defines HAS_LOCALECONV if localeconv() is
1194 available for numeric and monetary formatting conventions.
1196 d_lockf (d_lockf.U):
1197 This variable conditionally defines HAS_LOCKF if lockf() is
1198 available to do file locking.
1200 d_longdbl (d_longdbl.U):
1201 This variable conditionally defines HAS_LONG_DOUBLE if
1202 the long double type is supported.
1204 d_longlong (d_longlong.U):
1205 This variable conditionally defines HAS_LONG_LONG if
1206 the long long type is supported.
1208 d_lseekproto (d_lseekproto.U):
1209 This variable conditionally defines the HAS_LSEEK_PROTO symbol,
1210 which indicates to the C program that the system provides
1211 a prototype for the lseek() function. Otherwise, it is
1212 up to the program to supply one.
1214 d_lstat (d_lstat.U):
1215 This variable conditionally defines HAS_LSTAT if lstat() is
1216 available to do file stats on symbolic links.
1218 d_madvise (d_madvise.U):
1219 This variable conditionally defines HAS_MADVISE if madvise() is
1220 available to map a file into memory.
1222 d_malloc_size (d_malloc_size.U):
1223 This symbol, if defined, indicates that the malloc_size
1224 routine is available for use.
1226 d_malloc_good_size (d_malloc_good_size.U):
1227 This symbol, if defined, indicates that the malloc_good_size
1228 routine is available for use.
1230 d_mblen (d_mblen.U):
1231 This variable conditionally defines the HAS_MBLEN symbol, which
1232 indicates to the C program that the mblen() routine is available
1233 to find the number of bytes in a multibye character.
1235 d_mbstowcs (d_mbstowcs.U):
1236 This variable conditionally defines the HAS_MBSTOWCS symbol, which
1237 indicates to the C program that the mbstowcs() routine is available
1238 to convert a multibyte string into a wide character string.
1240 d_mbtowc (d_mbtowc.U):
1241 This variable conditionally defines the HAS_MBTOWC symbol, which
1242 indicates to the C program that the mbtowc() routine is available
1243 to convert multibyte to a wide character.
1245 d_memchr (d_memchr.U):
1246 This variable conditionally defines the HAS_MEMCHR symbol, which
1247 indicates to the C program that the memchr() routine is available
1248 to locate characters within a C string.
1250 d_memcmp (d_memcmp.U):
1251 This variable conditionally defines the HAS_MEMCMP symbol, which
1252 indicates to the C program that the memcmp() routine is available
1253 to compare blocks of memory.
1255 d_memcpy (d_memcpy.U):
1256 This variable conditionally defines the HAS_MEMCPY symbol, which
1257 indicates to the C program that the memcpy() routine is available
1258 to copy blocks of memory.
1260 d_memmove (d_memmove.U):
1261 This variable conditionally defines the HAS_MEMMOVE symbol, which
1262 indicates to the C program that the memmove() routine is available
1263 to copy potentatially overlapping blocks of memory.
1265 d_memset (d_memset.U):
1266 This variable conditionally defines the HAS_MEMSET symbol, which
1267 indicates to the C program that the memset() routine is available
1268 to set blocks of memory.
1270 d_mkdir (d_mkdir.U):
1271 This variable conditionally defines the HAS_MKDIR symbol, which
1272 indicates to the C program that the mkdir() routine is available
1273 to create directories..
1275 d_mkdtemp (d_mkdtemp.U):
1276 This variable conditionally defines the HAS_MKDTEMP symbol, which
1277 indicates to the C program that the mkdtemp() routine is available
1278 to exclusively create a uniquely named temporary directory.
1280 d_mkfifo (d_mkfifo.U):
1281 This variable conditionally defines the HAS_MKFIFO symbol, which
1282 indicates to the C program that the mkfifo() routine is available.
1284 d_mkstemp (d_mkstemp.U):
1285 This variable conditionally defines the HAS_MKSTEMP symbol, which
1286 indicates to the C program that the mkstemp() routine is available
1287 to exclusively create and open a uniquely named temporary file.
1289 d_mkstemps (d_mkstemps.U):
1290 This variable conditionally defines the HAS_MKSTEMPS symbol, which
1291 indicates to the C program that the mkstemps() routine is available
1292 to exclusively create and open a uniquely named (with a suffix)
1295 d_mktime (d_mktime.U):
1296 This variable conditionally defines the HAS_MKTIME symbol, which
1297 indicates to the C program that the mktime() routine is available.
1300 This variable conditionally defines HAS_MMAP if mmap() is
1301 available to map a file into memory.
1303 d_modfl (d_modfl.U):
1304 This variable conditionally defines the HAS_MODFL symbol, which
1305 indicates to the C program that the modfl() routine is available.
1307 d_modfl_pow32_bug (d_modfl.U):
1308 This variable conditionally defines the HAS_MODFL_POW32_BUG symbol,
1309 which indicates that modfl() is broken for long doubles >= pow(2, 32).
1310 For example from 4294967303.150000 one would get 4294967302.000000
1311 and 1.150000. The bug has been seen in certain versions of glibc,
1312 release 2.2.2 is known to be okay.
1314 d_modflproto (d_modfl.U):
1315 This symbol, if defined, indicates that the system provides
1316 a prototype for the modfl() function. Otherwise, it is up
1317 to the program to supply one. C99 says it should be
1318 long double modfl(long double, long double *);
1320 d_mprotect (d_mprotect.U):
1321 This variable conditionally defines HAS_MPROTECT if mprotect() is
1322 available to modify the access protection of a memory mapped file.
1325 This variable conditionally defines the HAS_MSG symbol, which
1326 indicates that the entire msg*(2) library is present.
1328 d_msg_ctrunc (d_socket.U):
1329 This variable conditionally defines the HAS_MSG_CTRUNC symbol,
1330 which indicates that the MSG_CTRUNC is available. #ifdef is
1331 not enough because it may be an enum, glibc has been known to do this.
1333 d_msg_dontroute (d_socket.U):
1334 This variable conditionally defines the HAS_MSG_DONTROUTE symbol,
1335 which indicates that the MSG_DONTROUTE is available. #ifdef is
1336 not enough because it may be an enum, glibc has been known to do this.
1338 d_msg_oob (d_socket.U):
1339 This variable conditionally defines the HAS_MSG_OOB symbol,
1340 which indicates that the MSG_OOB is available. #ifdef is
1341 not enough because it may be an enum, glibc has been known to do this.
1343 d_msg_peek (d_socket.U):
1344 This variable conditionally defines the HAS_MSG_PEEK symbol,
1345 which indicates that the MSG_PEEK is available. #ifdef is
1346 not enough because it may be an enum, glibc has been known to do this.
1348 d_msg_proxy (d_socket.U):
1349 This variable conditionally defines the HAS_MSG_PROXY symbol,
1350 which indicates that the MSG_PROXY is available. #ifdef is
1351 not enough because it may be an enum, glibc has been known to do this.
1353 d_msgctl (d_msgctl.U):
1354 This variable conditionally defines the HAS_MSGCTL symbol, which
1355 indicates to the C program that the msgctl() routine is available.
1357 d_msgget (d_msgget.U):
1358 This variable conditionally defines the HAS_MSGGET symbol, which
1359 indicates to the C program that the msgget() routine is available.
1361 d_msghdr_s (d_msghdr_s.U):
1362 This variable conditionally defines the HAS_STRUCT_MSGHDR symbol,
1363 which indicates that the struct msghdr is supported.
1365 d_msgrcv (d_msgrcv.U):
1366 This variable conditionally defines the HAS_MSGRCV symbol, which
1367 indicates to the C program that the msgrcv() routine is available.
1369 d_msgsnd (d_msgsnd.U):
1370 This variable conditionally defines the HAS_MSGSND symbol, which
1371 indicates to the C program that the msgsnd() routine is available.
1373 d_msync (d_msync.U):
1374 This variable conditionally defines HAS_MSYNC if msync() is
1375 available to synchronize a mapped file.
1377 d_munmap (d_munmap.U):
1378 This variable conditionally defines HAS_MUNMAP if munmap() is
1379 available to unmap a region mapped by mmap().
1381 d_mymalloc (mallocsrc.U):
1382 This variable conditionally defines MYMALLOC in case other parts
1383 of the source want to take special action if MYMALLOC is used.
1384 This may include different sorts of profiling or error detection.
1387 This variable conditionally defines the HAS_NICE symbol, which
1388 indicates to the C program that the nice() routine is available.
1390 d_nl_langinfo (d_nl_langinfo.U):
1391 This variable conditionally defines the HAS_NL_LANGINFO symbol, which
1392 indicates to the C program that the nl_langinfo() routine is available.
1394 d_nv_preserves_uv (perlxv.U):
1395 This variable indicates whether a variable of type nvtype
1396 can preserve all the bits a variable of type uvtype.
1398 d_nv_zero_is_allbits_zero (perlxv.U):
1399 This variable indicates whether a variable of type nvtype
1400 stores 0.0 in memory as all bits zero.
1402 d_off64_t (d_off64_t.U):
1403 This symbol will be defined if the C compiler supports off64_t.
1405 d_old_pthread_create_joinable (d_pthrattrj.U):
1406 This variable conditionally defines pthread_create_joinable.
1407 undef if pthread.h defines PTHREAD_CREATE_JOINABLE.
1409 d_oldpthreads (usethreads.U):
1410 This variable conditionally defines the OLD_PTHREADS_API symbol,
1411 and indicates that Perl should be built to use the old
1412 draft POSIX threads API. This is only potentially meaningful if
1415 d_oldsock (d_socket.U):
1416 This variable conditionally defines the OLDSOCKET symbol, which
1417 indicates that the BSD socket interface is based on 4.1c and not 4.2.
1419 d_open3 (d_open3.U):
1420 This variable conditionally defines the HAS_OPEN3 manifest constant,
1421 which indicates to the C program that the 3 argument version of
1422 the open(2) function is available.
1424 d_pathconf (d_pathconf.U):
1425 This variable conditionally defines the HAS_PATHCONF symbol, which
1426 indicates to the C program that the pathconf() routine is available
1427 to determine file-system related limits and options associated
1428 with a given filename.
1430 d_pause (d_pause.U):
1431 This variable conditionally defines the HAS_PAUSE symbol, which
1432 indicates to the C program that the pause() routine is available
1433 to suspend a process until a signal is received.
1435 d_perl_otherlibdirs (otherlibdirs.U):
1436 This variable conditionally defines PERL_OTHERLIBDIRS, which
1437 contains a colon-separated set of paths for the perl binary to
1438 include in @INC. See also otherlibdirs.
1440 d_phostname (d_gethname.U):
1441 This variable conditionally defines the HAS_PHOSTNAME symbol, which
1442 contains the shell command which, when fed to popen(), may be
1443 used to derive the host name.
1446 This variable conditionally defines the HAS_PIPE symbol, which
1447 indicates to the C program that the pipe() routine is available
1448 to create an inter-process channel.
1451 This variable conditionally defines the HAS_POLL symbol, which
1452 indicates to the C program that the poll() routine is available
1453 to poll active file descriptors.
1455 d_portable (d_portable.U):
1456 This variable conditionally defines the PORTABLE symbol, which
1457 indicates to the C program that it should not assume that it is
1458 running on the machine it was compiled on.
1460 d_PRId64 (quadfio.U):
1461 This variable conditionally defines the PERL_PRId64 symbol, which
1462 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1464 d_PRIeldbl (longdblfio.U):
1465 This variable conditionally defines the PERL_PRIfldbl symbol, which
1466 indiciates that stdio has a symbol to print long doubles.
1468 d_PRIEUldbl (longdblfio.U):
1469 This variable conditionally defines the PERL_PRIfldbl symbol, which
1470 indiciates that stdio has a symbol to print long doubles.
1471 The 'U' in the name is to separate this from d_PRIeldbl so that even
1472 case-blind systems can see the difference.
1474 d_PRIfldbl (longdblfio.U):
1475 This variable conditionally defines the PERL_PRIfldbl symbol, which
1476 indiciates that stdio has a symbol to print long doubles.
1478 d_PRIFUldbl (longdblfio.U):
1479 This variable conditionally defines the PERL_PRIfldbl symbol, which
1480 indiciates that stdio has a symbol to print long doubles.
1481 The 'U' in the name is to separate this from d_PRIfldbl so that even
1482 case-blind systems can see the difference.
1484 d_PRIgldbl (longdblfio.U):
1485 This variable conditionally defines the PERL_PRIfldbl symbol, which
1486 indiciates that stdio has a symbol to print long doubles.
1488 d_PRIGUldbl (longdblfio.U):
1489 This variable conditionally defines the PERL_PRIfldbl symbol, which
1490 indiciates that stdio has a symbol to print long doubles.
1491 The 'U' in the name is to separate this from d_PRIgldbl so that even
1492 case-blind systems can see the difference.
1494 d_PRIi64 (quadfio.U):
1495 This variable conditionally defines the PERL_PRIi64 symbol, which
1496 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1498 d_PRIo64 (quadfio.U):
1499 This variable conditionally defines the PERL_PRIo64 symbol, which
1500 indiciates that stdio has a symbol to print 64-bit octal numbers.
1502 d_PRIu64 (quadfio.U):
1503 This variable conditionally defines the PERL_PRIu64 symbol, which
1504 indiciates that stdio has a symbol to print 64-bit unsigned decimal
1507 d_PRIx64 (quadfio.U):
1508 This variable conditionally defines the PERL_PRIx64 symbol, which
1509 indiciates that stdio has a symbol to print 64-bit hexadecimal numbers.
1511 d_PRIXU64 (quadfio.U):
1512 This variable conditionally defines the PERL_PRIXU64 symbol, which
1513 indiciates that stdio has a symbol to print 64-bit hExADECimAl numbers.
1514 The 'U' in the name is to separate this from d_PRIx64 so that even
1515 case-blind systems can see the difference.
1517 d_procselfexe (d_procselfexe.U):
1518 Defined if $procselfexe is symlink to the absolute
1519 pathname of the executing program.
1521 d_pthread_atfork (d_pthread_atfork.U):
1522 This variable conditionally defines the HAS_PTHREAD_ATFORK symbol,
1523 which indicates to the C program that the pthread_atfork()
1524 routine is available.
1526 d_pthread_attr_setscope (d_pthread_attr_ss.U):
1527 This variable conditionally defines HAS_PTHREAD_ATTR_SETSCOPE if
1528 pthread_attr_setscope() is available to set the contention scope
1529 attribute of a thread attribute object.
1531 d_pthread_yield (d_pthread_y.U):
1532 This variable conditionally defines the HAS_PTHREAD_YIELD
1533 symbol if the pthread_yield routine is available to yield
1534 the execution of the current thread.
1537 This variable conditionally defines PWAGE, which indicates
1538 that struct passwd contains pw_age.
1540 d_pwchange (i_pwd.U):
1541 This variable conditionally defines PWCHANGE, which indicates
1542 that struct passwd contains pw_change.
1544 d_pwclass (i_pwd.U):
1545 This variable conditionally defines PWCLASS, which indicates
1546 that struct passwd contains pw_class.
1548 d_pwcomment (i_pwd.U):
1549 This variable conditionally defines PWCOMMENT, which indicates
1550 that struct passwd contains pw_comment.
1552 d_pwexpire (i_pwd.U):
1553 This variable conditionally defines PWEXPIRE, which indicates
1554 that struct passwd contains pw_expire.
1556 d_pwgecos (i_pwd.U):
1557 This variable conditionally defines PWGECOS, which indicates
1558 that struct passwd contains pw_gecos.
1560 d_pwpasswd (i_pwd.U):
1561 This variable conditionally defines PWPASSWD, which indicates
1562 that struct passwd contains pw_passwd.
1564 d_pwquota (i_pwd.U):
1565 This variable conditionally defines PWQUOTA, which indicates
1566 that struct passwd contains pw_quota.
1568 d_qgcvt (d_qgcvt.U):
1569 This variable conditionally defines the HAS_QGCVT symbol, which
1570 indicates to the C program that the qgcvt() routine is available.
1572 d_quad (quadtype.U):
1573 This variable, if defined, tells that there's a 64-bit integer type,
1576 d_random_r (d_random_r.U):
1577 This variable conditionally defines the HAS_RANDOM_R symbol,
1578 which indicates to the C program that the random_r()
1579 routine is available.
1581 d_readdir64_r (d_readdir64_r.U):
1582 This variable conditionally defines the HAS_READDIR64_R symbol,
1583 which indicates to the C program that the readdir64_r()
1584 routine is available.
1586 d_readdir (d_readdir.U):
1587 This variable conditionally defines HAS_READDIR if readdir() is
1588 available to read directory entries.
1590 d_readdir_r (d_readdir_r.U):
1591 This variable conditionally defines the HAS_READDIR_R symbol,
1592 which indicates to the C program that the readdir_r()
1593 routine is available.
1595 d_readlink (d_readlink.U):
1596 This variable conditionally defines the HAS_READLINK symbol, which
1597 indicates to the C program that the readlink() routine is available
1598 to read the value of a symbolic link.
1600 d_readv (d_readv.U):
1601 This variable conditionally defines the HAS_READV symbol, which
1602 indicates to the C program that the readv() routine is available.
1604 d_recvmsg (d_recvmsg.U):
1605 This variable conditionally defines the HAS_RECVMSG symbol, which
1606 indicates to the C program that the recvmsg() routine is available.
1608 d_rename (d_rename.U):
1609 This variable conditionally defines the HAS_RENAME symbol, which
1610 indicates to the C program that the rename() routine is available
1613 d_rewinddir (d_readdir.U):
1614 This variable conditionally defines HAS_REWINDDIR if rewinddir() is
1617 d_rmdir (d_rmdir.U):
1618 This variable conditionally defines HAS_RMDIR if rmdir() is
1619 available to remove directories.
1621 d_safebcpy (d_safebcpy.U):
1622 This variable conditionally defines the HAS_SAFE_BCOPY symbol if
1623 the bcopy() routine can do overlapping copies. Normally, you
1624 should probably use memmove().
1626 d_safemcpy (d_safemcpy.U):
1627 This variable conditionally defines the HAS_SAFE_MEMCPY symbol if
1628 the memcpy() routine can do overlapping copies.
1629 For overlapping copies, memmove() should be used, if available.
1631 d_sanemcmp (d_sanemcmp.U):
1632 This variable conditionally defines the HAS_SANE_MEMCMP symbol if
1633 the memcpy() routine is available and can be used to compare relative
1634 magnitudes of chars with their high bits set.
1636 d_sbrkproto (d_sbrkproto.U):
1637 This variable conditionally defines the HAS_SBRK_PROTO symbol,
1638 which indicates to the C program that the system provides
1639 a prototype for the sbrk() function. Otherwise, it is
1640 up to the program to supply one.
1642 d_scalbnl (d_scalbnl.U):
1643 This variable conditionally defines the HAS_SCALBNL symbol, which
1644 indicates to the C program that the scalbnl() routine is available.
1645 If ilogbl is also present we can emulate frexpl.
1647 d_sched_yield (d_pthread_y.U):
1648 This variable conditionally defines the HAS_SCHED_YIELD
1649 symbol if the sched_yield routine is available to yield
1650 the execution of the current thread.
1652 d_scm_rights (d_socket.U):
1653 This variable conditionally defines the HAS_SCM_RIGHTS symbol,
1654 which indicates that the SCM_RIGHTS is available. #ifdef is
1655 not enough because it may be an enum, glibc has been known to do this.
1657 d_SCNfldbl (longdblfio.U):
1658 This variable conditionally defines the PERL_PRIfldbl symbol, which
1659 indiciates that stdio has a symbol to scan long doubles.
1661 d_seekdir (d_readdir.U):
1662 This variable conditionally defines HAS_SEEKDIR if seekdir() is
1665 d_select (d_select.U):
1666 This variable conditionally defines HAS_SELECT if select() is
1667 available to select active file descriptors. A <sys/time.h>
1668 inclusion may be necessary for the timeout field.
1671 This variable conditionally defines the HAS_SEM symbol, which
1672 indicates that the entire sem*(2) library is present.
1674 d_semctl (d_semctl.U):
1675 This variable conditionally defines the HAS_SEMCTL symbol, which
1676 indicates to the C program that the semctl() routine is available.
1678 d_semctl_semid_ds (d_union_semun.U):
1679 This variable conditionally defines USE_SEMCTL_SEMID_DS, which
1680 indicates that struct semid_ds * is to be used for semctl IPC_STAT.
1682 d_semctl_semun (d_union_semun.U):
1683 This variable conditionally defines USE_SEMCTL_SEMUN, which
1684 indicates that union semun is to be used for semctl IPC_STAT.
1686 d_semget (d_semget.U):
1687 This variable conditionally defines the HAS_SEMGET symbol, which
1688 indicates to the C program that the semget() routine is available.
1690 d_semop (d_semop.U):
1691 This variable conditionally defines the HAS_SEMOP symbol, which
1692 indicates to the C program that the semop() routine is available.
1694 d_sendmsg (d_sendmsg.U):
1695 This variable conditionally defines the HAS_SENDMSG symbol, which
1696 indicates to the C program that the sendmsg() routine is available.
1698 d_setegid (d_setegid.U):
1699 This variable conditionally defines the HAS_SETEGID symbol, which
1700 indicates to the C program that the setegid() routine is available
1701 to change the effective gid of the current program.
1703 d_seteuid (d_seteuid.U):
1704 This variable conditionally defines the HAS_SETEUID symbol, which
1705 indicates to the C program that the seteuid() routine is available
1706 to change the effective uid of the current program.
1708 d_setgrent (d_setgrent.U):
1709 This variable conditionally defines the HAS_SETGRENT symbol, which
1710 indicates to the C program that the setgrent() routine is available
1711 for initializing sequential access to the group database.
1713 d_setgrent_r (d_setgrent_r.U):
1714 This variable conditionally defines the HAS_SETGRENT_R symbol,
1715 which indicates to the C program that the setgrent_r()
1716 routine is available.
1718 d_setgrps (d_setgrps.U):
1719 This variable conditionally defines the HAS_SETGROUPS symbol, which
1720 indicates to the C program that the setgroups() routine is available
1721 to set the list of process groups.
1723 d_sethent (d_sethent.U):
1724 This variable conditionally defines HAS_SETHOSTENT if sethostent() is
1727 d_sethostent_r (d_sethostent_r.U):
1728 This variable conditionally defines the HAS_SETHOSTENT_R symbol,
1729 which indicates to the C program that the sethostent_r()
1730 routine is available.
1732 d_setitimer (d_setitimer.U):
1733 This variable conditionally defines the HAS_SETITIMER symbol, which
1734 indicates to the C program that the setitimer() routine is available.
1736 d_setlinebuf (d_setlnbuf.U):
1737 This variable conditionally defines the HAS_SETLINEBUF symbol, which
1738 indicates to the C program that the setlinebuf() routine is available
1739 to change stderr or stdout from block-buffered or unbuffered to a
1742 d_setlocale (d_setlocale.U):
1743 This variable conditionally defines HAS_SETLOCALE if setlocale() is
1744 available to handle locale-specific ctype implementations.
1746 d_setlocale_r (d_setlocale_r.U):
1747 This variable conditionally defines the HAS_SETLOCALE_R symbol,
1748 which indicates to the C program that the setlocale_r()
1749 routine is available.
1751 d_setnent (d_setnent.U):
1752 This variable conditionally defines HAS_SETNETENT if setnetent() is
1755 d_setnetent_r (d_setnetent_r.U):
1756 This variable conditionally defines the HAS_SETNETENT_R symbol,
1757 which indicates to the C program that the setnetent_r()
1758 routine is available.
1760 d_setpent (d_setpent.U):
1761 This variable conditionally defines HAS_SETPROTOENT if setprotoent() is
1764 d_setpgid (d_setpgid.U):
1765 This variable conditionally defines the HAS_SETPGID symbol if the
1766 setpgid(pid, gpid) function is available to set process group ID.
1768 d_setpgrp2 (d_setpgrp2.U):
1769 This variable conditionally defines the HAS_SETPGRP2 symbol, which
1770 indicates to the C program that the setpgrp2() (as in DG/UX) routine
1771 is available to set the current process group.
1773 d_setpgrp (d_setpgrp.U):
1774 This variable conditionally defines HAS_SETPGRP if setpgrp() is
1775 available to set the current process group.
1777 d_setprior (d_setprior.U):
1778 This variable conditionally defines HAS_SETPRIORITY if setpriority()
1779 is available to set a process's priority.
1781 d_setproctitle (d_setproctitle.U):
1782 This variable conditionally defines the HAS_SETPROCTITLE symbol,
1783 which indicates to the C program that the setproctitle() routine
1786 d_setprotoent_r (d_setprotoent_r.U):
1787 This variable conditionally defines the HAS_SETPROTOENT_R symbol,
1788 which indicates to the C program that the setprotoent_r()
1789 routine is available.
1791 d_setpwent (d_setpwent.U):
1792 This variable conditionally defines the HAS_SETPWENT symbol, which
1793 indicates to the C program that the setpwent() routine is available
1794 for initializing sequential access to the passwd database.
1796 d_setpwent_r (d_setpwent_r.U):
1797 This variable conditionally defines the HAS_SETPWENT_R symbol,
1798 which indicates to the C program that the setpwent_r()
1799 routine is available.
1801 d_setregid (d_setregid.U):
1802 This variable conditionally defines HAS_SETREGID if setregid() is
1803 available to change the real and effective gid of the current
1806 d_setresgid (d_setregid.U):
1807 This variable conditionally defines HAS_SETRESGID if setresgid() is
1808 available to change the real, effective and saved gid of the current
1811 d_setresuid (d_setreuid.U):
1812 This variable conditionally defines HAS_SETREUID if setresuid() is
1813 available to change the real, effective and saved uid of the current
1816 d_setreuid (d_setreuid.U):
1817 This variable conditionally defines HAS_SETREUID if setreuid() is
1818 available to change the real and effective uid of the current
1821 d_setrgid (d_setrgid.U):
1822 This variable conditionally defines the HAS_SETRGID symbol, which
1823 indicates to the C program that the setrgid() routine is available
1824 to change the real gid of the current program.
1826 d_setruid (d_setruid.U):
1827 This variable conditionally defines the HAS_SETRUID symbol, which
1828 indicates to the C program that the setruid() routine is available
1829 to change the real uid of the current program.
1831 d_setsent (d_setsent.U):
1832 This variable conditionally defines HAS_SETSERVENT if setservent() is
1835 d_setservent_r (d_setservent_r.U):
1836 This variable conditionally defines the HAS_SETSERVENT_R symbol,
1837 which indicates to the C program that the setservent_r()
1838 routine is available.
1840 d_setsid (d_setsid.U):
1841 This variable conditionally defines HAS_SETSID if setsid() is
1842 available to set the process group ID.
1844 d_setvbuf (d_setvbuf.U):
1845 This variable conditionally defines the HAS_SETVBUF symbol, which
1846 indicates to the C program that the setvbuf() routine is available
1847 to change buffering on an open stdio stream.
1850 This variable conditionally defines the USE_SFIO symbol,
1851 and indicates whether sfio is available (and should be used).
1854 This variable conditionally defines the HAS_SHM symbol, which
1855 indicates that the entire shm*(2) library is present.
1857 d_shmat (d_shmat.U):
1858 This variable conditionally defines the HAS_SHMAT symbol, which
1859 indicates to the C program that the shmat() routine is available.
1861 d_shmatprototype (d_shmat.U):
1862 This variable conditionally defines the HAS_SHMAT_PROTOTYPE
1863 symbol, which indicates that sys/shm.h has a prototype for
1866 d_shmctl (d_shmctl.U):
1867 This variable conditionally defines the HAS_SHMCTL symbol, which
1868 indicates to the C program that the shmctl() routine is available.
1870 d_shmdt (d_shmdt.U):
1871 This variable conditionally defines the HAS_SHMDT symbol, which
1872 indicates to the C program that the shmdt() routine is available.
1874 d_shmget (d_shmget.U):
1875 This variable conditionally defines the HAS_SHMGET symbol, which
1876 indicates to the C program that the shmget() routine is available.
1878 d_sigaction (d_sigaction.U):
1879 This variable conditionally defines the HAS_SIGACTION symbol, which
1880 indicates that the Vr4 sigaction() routine is available.
1882 d_sigprocmask (d_sigprocmask.U):
1883 This variable conditionally defines HAS_SIGPROCMASK
1884 if sigprocmask() is available to examine or change the signal mask
1885 of the calling process.
1887 d_sigsetjmp (d_sigsetjmp.U):
1888 This variable conditionally defines the HAS_SIGSETJMP symbol,
1889 which indicates that the sigsetjmp() routine is available to
1890 call setjmp() and optionally save the process's signal mask.
1892 d_sockatmark (d_sockatmark.U):
1893 This variable conditionally defines the HAS_SOCKATMARK symbol, which
1894 indicates to the C program that the sockatmark() routine is available.
1896 d_sockatmarkproto (d_sockatmarkproto.U):
1897 This variable conditionally defines the HAS_SOCKATMARK_PROTO symbol,
1898 which indicates to the C program that the system provides
1899 a prototype for the sockatmark() function. Otherwise, it is
1900 up to the program to supply one.
1902 d_socket (d_socket.U):
1903 This variable conditionally defines HAS_SOCKET, which indicates
1904 that the BSD socket interface is supported.
1906 d_socklen_t (d_socklen_t.U):
1907 This symbol will be defined if the C compiler supports socklen_t.
1909 d_sockpair (d_socket.U):
1910 This variable conditionally defines the HAS_SOCKETPAIR symbol, which
1911 indicates that the BSD socketpair() is supported.
1913 d_socks5_init (d_socks5_init.U):
1914 This variable conditionally defines the HAS_SOCKS5_INIT symbol, which
1915 indicates to the C program that the socks5_init() routine is available.
1917 d_sqrtl (d_sqrtl.U):
1918 This variable conditionally defines the HAS_SQRTL symbol, which
1919 indicates to the C program that the sqrtl() routine is available.
1921 d_srand48_r (d_srand48_r.U):
1922 This variable conditionally defines the HAS_SRAND48_R symbol,
1923 which indicates to the C program that the srand48_r()
1924 routine is available.
1926 d_srandom_r (d_srandom_r.U):
1927 This variable conditionally defines the HAS_SRANDOM_R symbol,
1928 which indicates to the C program that the srandom_r()
1929 routine is available.
1931 d_sresgproto (d_sresgproto.U):
1932 This variable conditionally defines the HAS_SETRESGID_PROTO symbol,
1933 which indicates to the C program that the system provides
1934 a prototype for the setresgid() function. Otherwise, it is
1935 up to the program to supply one.
1937 d_sresuproto (d_sresuproto.U):
1938 This variable conditionally defines the HAS_SETRESUID_PROTO symbol,
1939 which indicates to the C program that the system provides
1940 a prototype for the setresuid() function. Otherwise, it is
1941 up to the program to supply one.
1943 d_statblks (d_statblks.U):
1944 This variable conditionally defines USE_STAT_BLOCKS
1945 if this system has a stat structure declaring
1946 st_blksize and st_blocks.
1948 d_statfs_f_flags (d_statfs_f_flags.U):
1949 This variable conditionally defines the HAS_STRUCT_STATFS_F_FLAGS
1950 symbol, which indicates to struct statfs from has f_flags member.
1951 This kind of struct statfs is coming from sys/mount.h (BSD),
1952 not from sys/statfs.h (SYSV).
1954 d_statfs_s (d_statfs_s.U):
1955 This variable conditionally defines the HAS_STRUCT_STATFS symbol,
1956 which indicates that the struct statfs is supported.
1958 d_statvfs (d_statvfs.U):
1959 This variable conditionally defines the HAS_STATVFS symbol, which
1960 indicates to the C program that the statvfs() routine is available.
1962 d_stdio_cnt_lval (d_stdstdio.U):
1963 This variable conditionally defines STDIO_CNT_LVALUE if the
1964 FILE_cnt macro can be used as an lvalue.
1966 d_stdio_ptr_lval (d_stdstdio.U):
1967 This variable conditionally defines STDIO_PTR_LVALUE if the
1968 FILE_ptr macro can be used as an lvalue.
1970 d_stdio_ptr_lval_nochange_cnt (d_stdstdio.U):
1971 This symbol is defined if using the FILE_ptr macro as an lvalue
1972 to increase the pointer by n leaves File_cnt(fp) unchanged.
1974 d_stdio_ptr_lval_sets_cnt (d_stdstdio.U):
1975 This symbol is defined if using the FILE_ptr macro as an lvalue
1976 to increase the pointer by n has the side effect of decreasing the
1977 value of File_cnt(fp) by n.
1979 d_stdio_stream_array (stdio_streams.U):
1980 This variable tells whether there is an array holding
1983 d_stdiobase (d_stdstdio.U):
1984 This variable conditionally defines USE_STDIO_BASE if this system
1985 has a FILE structure declaring a usable _base field (or equivalent)
1988 d_stdstdio (d_stdstdio.U):
1989 This variable conditionally defines USE_STDIO_PTR if this system
1990 has a FILE structure declaring usable _ptr and _cnt fields (or
1991 equivalent) in stdio.h.
1993 d_strchr (d_strchr.U):
1994 This variable conditionally defines HAS_STRCHR if strchr() and
1995 strrchr() are available for string searching.
1997 d_strcoll (d_strcoll.U):
1998 This variable conditionally defines HAS_STRCOLL if strcoll() is
1999 available to compare strings using collating information.
2001 d_strctcpy (d_strctcpy.U):
2002 This variable conditionally defines the USE_STRUCT_COPY symbol, which
2003 indicates to the C program that this C compiler knows how to copy
2006 d_strerrm (d_strerror.U):
2007 This variable holds what Strerrr is defined as to translate an error
2008 code condition into an error message string. It could be 'strerror'
2009 or a more complex macro emulating strrror with sys_errlist[], or the
2010 "unknown" string when both strerror and sys_errlist are missing.
2012 d_strerror (d_strerror.U):
2013 This variable conditionally defines HAS_STRERROR if strerror() is
2014 available to translate error numbers to strings.
2016 d_strerror_r (d_strerror_r.U):
2017 This variable conditionally defines the HAS_STRERROR_R symbol,
2018 which indicates to the C program that the strerror_r()
2019 routine is available.
2021 d_strftime (d_strftime.U):
2022 This variable conditionally defines the HAS_STRFTIME symbol, which
2023 indicates to the C program that the strftime() routine is available.
2025 d_strlcat (d_strlcat.U):
2026 This variable conditionally defines the HAS_STRLCAT symbol, which
2027 indicates to the C program that the strlcat () routine is available.
2029 d_strlcpy (d_strlcpy.U):
2030 This variable conditionally defines the HAS_STRLCPY symbol, which
2031 indicates to the C program that the strlcpy () routine is available.
2033 d_strtod (d_strtod.U):
2034 This variable conditionally defines the HAS_STRTOD symbol, which
2035 indicates to the C program that the strtod() routine is available
2036 to provide better numeric string conversion than atof().
2038 d_strtol (d_strtol.U):
2039 This variable conditionally defines the HAS_STRTOL symbol, which
2040 indicates to the C program that the strtol() routine is available
2041 to provide better numeric string conversion than atoi() and friends.
2043 d_strtold (d_strtold.U):
2044 This variable conditionally defines the HAS_STRTOLD symbol, which
2045 indicates to the C program that the strtold() routine is available.
2047 d_strtoll (d_strtoll.U):
2048 This variable conditionally defines the HAS_STRTOLL symbol, which
2049 indicates to the C program that the strtoll() routine is available.
2051 d_strtoq (d_strtoq.U):
2052 This variable conditionally defines the HAS_STRTOQ symbol, which
2053 indicates to the C program that the strtoq() routine is available.
2055 d_strtoul (d_strtoul.U):
2056 This variable conditionally defines the HAS_STRTOUL symbol, which
2057 indicates to the C program that the strtoul() routine is available
2058 to provide conversion of strings to unsigned long.
2060 d_strtoull (d_strtoull.U):
2061 This variable conditionally defines the HAS_STRTOULL symbol, which
2062 indicates to the C program that the strtoull() routine is available.
2064 d_strtouq (d_strtouq.U):
2065 This variable conditionally defines the HAS_STRTOUQ symbol, which
2066 indicates to the C program that the strtouq() routine is available.
2068 d_strxfrm (d_strxfrm.U):
2069 This variable conditionally defines HAS_STRXFRM if strxfrm() is
2070 available to transform strings.
2072 d_suidsafe (d_dosuid.U):
2073 This variable conditionally defines SETUID_SCRIPTS_ARE_SECURE_NOW
2074 if setuid scripts can be secure. This test looks in /dev/fd/.
2076 d_symlink (d_symlink.U):
2077 This variable conditionally defines the HAS_SYMLINK symbol, which
2078 indicates to the C program that the symlink() routine is available
2079 to create symbolic links.
2081 d_syscall (d_syscall.U):
2082 This variable conditionally defines HAS_SYSCALL if syscall() is
2083 available call arbitrary system calls.
2085 d_syscallproto (d_syscallproto.U):
2086 This variable conditionally defines the HAS_SYSCALL_PROTO symbol,
2087 which indicates to the C program that the system provides
2088 a prototype for the syscall() function. Otherwise, it is
2089 up to the program to supply one.
2091 d_sysconf (d_sysconf.U):
2092 This variable conditionally defines the HAS_SYSCONF symbol, which
2093 indicates to the C program that the sysconf() routine is available
2094 to determine system related limits and options.
2096 d_sysernlst (d_strerror.U):
2097 This variable conditionally defines HAS_SYS_ERRNOLIST if sys_errnolist[]
2098 is available to translate error numbers to the symbolic name.
2100 d_syserrlst (d_strerror.U):
2101 This variable conditionally defines HAS_SYS_ERRLIST if sys_errlist[] is
2102 available to translate error numbers to strings.
2104 d_system (d_system.U):
2105 This variable conditionally defines HAS_SYSTEM if system() is
2106 available to issue a shell command.
2108 d_tcgetpgrp (d_tcgtpgrp.U):
2109 This variable conditionally defines the HAS_TCGETPGRP symbol, which
2110 indicates to the C program that the tcgetpgrp() routine is available.
2111 to get foreground process group ID.
2113 d_tcsetpgrp (d_tcstpgrp.U):
2114 This variable conditionally defines the HAS_TCSETPGRP symbol, which
2115 indicates to the C program that the tcsetpgrp() routine is available
2116 to set foreground process group ID.
2118 d_telldir (d_readdir.U):
2119 This variable conditionally defines HAS_TELLDIR if telldir() is
2122 d_telldirproto (d_telldirproto.U):
2123 This variable conditionally defines the HAS_TELLDIR_PROTO symbol,
2124 which indicates to the C program that the system provides
2125 a prototype for the telldir() function. Otherwise, it is
2126 up to the program to supply one.
2129 This variable conditionally defines the HAS_TIME symbol, which indicates
2130 that the time() routine exists. The time() routine is normaly
2131 provided on UNIX systems.
2133 d_times (d_times.U):
2134 This variable conditionally defines the HAS_TIMES symbol, which indicates
2135 that the times() routine exists. The times() routine is normaly
2136 provided on UNIX systems. You may have to include <sys/times.h>.
2138 d_tm_tm_gmtoff (i_time.U):
2139 This variable conditionally defines HAS_TM_TM_GMTOFF, which indicates
2140 indicates to the C program that the struct tm has the tm_gmtoff field.
2142 d_tm_tm_zone (i_time.U):
2143 This variable conditionally defines HAS_TM_TM_ZONE, which indicates
2144 indicates to the C program that the struct tm has the tm_zone field.
2146 d_tmpnam_r (d_tmpnam_r.U):
2147 This variable conditionally defines the HAS_TMPNAM_R symbol,
2148 which indicates to the C program that the tmpnam_r()
2149 routine is available.
2151 d_truncate (d_truncate.U):
2152 This variable conditionally defines HAS_TRUNCATE if truncate() is
2153 available to truncate files.
2155 d_ttyname_r (d_ttyname_r.U):
2156 This variable conditionally defines the HAS_TTYNAME_R symbol,
2157 which indicates to the C program that the ttyname_r()
2158 routine is available.
2160 d_tzname (d_tzname.U):
2161 This variable conditionally defines HAS_TZNAME if tzname[] is
2162 available to access timezone names.
2164 d_u32align (d_u32align.U):
2165 This variable tells whether you must access character data
2166 through U32-aligned pointers.
2168 d_ualarm (d_ualarm.U):
2169 This variable conditionally defines the HAS_UALARM symbol, which
2170 indicates to the C program that the ualarm() routine is available.
2172 d_umask (d_umask.U):
2173 This variable conditionally defines the HAS_UMASK symbol, which
2174 indicates to the C program that the umask() routine is available.
2175 to set and get the value of the file creation mask.
2177 d_uname (d_gethname.U):
2178 This variable conditionally defines the HAS_UNAME symbol, which
2179 indicates to the C program that the uname() routine may be
2180 used to derive the host name.
2182 d_union_semun (d_union_semun.U):
2183 This variable conditionally defines HAS_UNION_SEMUN if the
2184 union semun is defined by including <sys/sem.h>.
2186 d_unordered (d_unordered.U):
2187 This variable conditionally defines the HAS_UNORDERED symbol, which
2188 indicates to the C program that the unordered() routine is available.
2190 d_unsetenv (d_unsetenv.U):
2191 This variable conditionally defines the HAS_UNSETENV symbol, which
2192 indicates to the C program that the unsetenv () routine is available.
2194 d_usleep (d_usleep.U):
2195 This variable conditionally defines HAS_USLEEP if usleep() is
2196 available to do high granularity sleeps.
2198 d_usleepproto (d_usleepproto.U):
2199 This variable conditionally defines the HAS_USLEEP_PROTO symbol,
2200 which indicates to the C program that the system provides
2201 a prototype for the usleep() function. Otherwise, it is
2202 up to the program to supply one.
2204 d_ustat (d_ustat.U):
2205 This variable conditionally defines HAS_USTAT if ustat() is
2206 available to query file system statistics by dev_t.
2208 d_vendorarch (vendorarch.U):
2209 This variable conditionally defined PERL_VENDORARCH.
2211 d_vendorbin (vendorbin.U):
2212 This variable conditionally defines PERL_VENDORBIN.
2214 d_vendorlib (vendorlib.U):
2215 This variable conditionally defines PERL_VENDORLIB.
2217 d_vendorscript (vendorscript.U):
2218 This variable conditionally defines PERL_VENDORSCRIPT.
2220 d_vfork (d_vfork.U):
2221 This variable conditionally defines the HAS_VFORK symbol, which
2222 indicates the vfork() routine is available.
2224 d_void_closedir (d_closedir.U):
2225 This variable conditionally defines VOID_CLOSEDIR if closedir()
2226 does not return a value.
2228 d_voidsig (d_voidsig.U):
2229 This variable conditionally defines VOIDSIG if this system
2230 declares "void (*signal(...))()" in signal.h. The old way was to
2231 declare it as "int (*signal(...))()".
2233 d_voidtty (i_sysioctl.U):
2234 This variable conditionally defines USE_IOCNOTTY to indicate that the
2235 ioctl() call with TIOCNOTTY should be used to void tty association.
2236 Otherwise (on USG probably), it is enough to close the standard file
2237 decriptors and do a setpgrp().
2239 d_volatile (d_volatile.U):
2240 This variable conditionally defines the HASVOLATILE symbol, which
2241 indicates to the C program that this C compiler knows about the
2242 volatile declaration.
2244 d_vprintf (d_vprintf.U):
2245 This variable conditionally defines the HAS_VPRINTF symbol, which
2246 indicates to the C program that the vprintf() routine is available
2247 to printf with a pointer to an argument list.
2249 d_wait4 (d_wait4.U):
2250 This variable conditionally defines the HAS_WAIT4 symbol, which
2251 indicates the wait4() routine is available.
2253 d_waitpid (d_waitpid.U):
2254 This variable conditionally defines HAS_WAITPID if waitpid() is
2255 available to wait for child process.
2257 d_wcstombs (d_wcstombs.U):
2258 This variable conditionally defines the HAS_WCSTOMBS symbol, which
2259 indicates to the C program that the wcstombs() routine is available
2260 to convert wide character strings to multibyte strings.
2262 d_wctomb (d_wctomb.U):
2263 This variable conditionally defines the HAS_WCTOMB symbol, which
2264 indicates to the C program that the wctomb() routine is available
2265 to convert a wide character to a multibyte.
2267 d_writev (d_writev.U):
2268 This variable conditionally defines the HAS_WRITEV symbol, which
2269 indicates to the C program that the writev() routine is available.
2272 This variable conditionally defines the symbol XENIX, which alerts
2273 the C program that it runs under Xenix.
2276 This variable is used internally by Configure to determine the
2277 full pathname (if any) of the date program. After Configure runs,
2278 the value is reset to a plain "date" and is not useful.
2280 db_hashtype (i_db.U):
2281 This variable contains the type of the hash structure element
2282 in the <db.h> header file. In older versions of DB, it was
2283 int, while in newer ones it is u_int32_t.
2285 db_prefixtype (i_db.U):
2286 This variable contains the type of the prefix structure element
2287 in the <db.h> header file. In older versions of DB, it was
2288 int, while in newer ones it is size_t.
2290 db_version_major (i_db.U):
2291 This variable contains the major version number of
2292 Berkeley DB found in the <db.h> header file.
2294 db_version_minor (i_db.U):
2295 This variable contains the minor version number of
2296 Berkeley DB found in the <db.h> header file.
2297 For DB version 1 this is always 0.
2299 db_version_patch (i_db.U):
2300 This variable contains the patch version number of
2301 Berkeley DB found in the <db.h> header file.
2302 For DB version 1 this is always 0.
2304 defvoidused (voidflags.U):
2305 This variable contains the default value of the VOIDUSED symbol (15).
2307 direntrytype (i_dirent.U):
2308 This symbol is set to 'struct direct' or 'struct dirent' depending on
2309 whether dirent is available or not. You should use this pseudo type to
2310 portably declare your directory entries.
2313 This variable contains the extension that is to be used for the
2314 dynamically loaded modules that perl generaties.
2317 This variable contains the name of the dynamic loading file that
2318 will be used with the package.
2320 doublesize (doublesize.U):
2321 This variable contains the value of the DOUBLESIZE symbol, which
2322 indicates to the C program how many bytes there are in a double.
2324 drand01 (randfunc.U):
2325 Indicates the macro to be used to generate normalized
2326 random numbers. Uses randfunc, often divided by
2327 (double) (((unsigned long) 1 << randbits)) in order to
2328 normalize the result.
2329 In C programs, the macro 'Drand01' is mapped to drand01.
2331 drand48_r_proto (d_drand48_r.U):
2332 This variable encodes the prototype of drand48_r.
2333 It is zero if d_drand48_r is undef, and one of the
2334 REENTRANT_PROTO_T_ABC macros of reentr.h if d_drand48_r
2337 dynamic_ext (Extensions.U):
2338 This variable holds a list of XS extension files we want to
2339 link dynamically into the package. It is used by Makefile.
2341 eagain (nblock_io.U):
2342 This variable bears the symbolic errno code set by read() when no
2343 data is present on the file and non-blocking I/O was enabled (otherwise,
2344 read() blocks naturally).
2347 This variable conditionally defines EBCDIC if this
2348 system uses EBCDIC encoding. Among other things, this
2349 means that the character ranges are not contiguous.
2353 This variable is used internally by Configure to determine the
2354 full pathname (if any) of the echo program. After Configure runs,
2355 the value is reset to a plain "echo" and is not useful.
2358 This variable is used internally by Configure to determine the
2359 full pathname (if any) of the egrep program. After Configure runs,
2360 the value is reset to a plain "egrep" and is not useful.
2363 This variable is defined but not used by Configure.
2364 The value is a plain '' and is not useful.
2366 endgrent_r_proto (d_endgrent_r.U):
2367 This variable encodes the prototype of endgrent_r.
2368 It is zero if d_endgrent_r is undef, and one of the
2369 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endgrent_r
2372 endhostent_r_proto (d_endhostent_r.U):
2373 This variable encodes the prototype of endhostent_r.
2374 It is zero if d_endhostent_r is undef, and one of the
2375 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endhostent_r
2378 endnetent_r_proto (d_endnetent_r.U):
2379 This variable encodes the prototype of endnetent_r.
2380 It is zero if d_endnetent_r is undef, and one of the
2381 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endnetent_r
2384 endprotoent_r_proto (d_endprotoent_r.U):
2385 This variable encodes the prototype of endprotoent_r.
2386 It is zero if d_endprotoent_r is undef, and one of the
2387 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endprotoent_r
2390 endpwent_r_proto (d_endpwent_r.U):
2391 This variable encodes the prototype of endpwent_r.
2392 It is zero if d_endpwent_r is undef, and one of the
2393 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endpwent_r
2396 endservent_r_proto (d_endservent_r.U):
2397 This variable encodes the prototype of endservent_r.
2398 It is zero if d_endservent_r is undef, and one of the
2399 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endservent_r
2403 When running under Eunice this variable contains a command which will
2404 convert a shell script to the proper form of text file for it to be
2405 executable by the shell. On other systems it is a no-op.
2408 This is an old synonym for _exe.
2411 This variable is used internally by Configure to determine the
2412 full pathname (if any) of the expr program. After Configure runs,
2413 the value is reset to a plain "expr" and is not useful.
2415 extensions (Extensions.U):
2416 This variable holds a list of all extension files (both XS and
2417 non-xs linked into the package. It is propagated to Config.pm
2418 and is typically used to test whether a particular extesion
2422 This variable holds a list of extra modules to install.
2424 fflushall (fflushall.U):
2425 This symbol, if defined, tells that to flush
2426 all pending stdio output one must loop through all
2427 the stdio file handles stored in an array and fflush them.
2428 Note that if fflushNULL is defined, fflushall will not
2429 even be probed for and will be left undefined.
2431 fflushNULL (fflushall.U):
2432 This symbol, if defined, tells that fflush(NULL) does flush
2433 all pending stdio output.
2436 This variable is defined but not used by Configure.
2437 The value is a plain '' and is not useful.
2439 firstmakefile (Unix.U):
2440 This variable defines the first file searched by make. On unix,
2441 it is makefile (then Makefile). On case-insensitive systems,
2442 it might be something else. This is only used to deal with
2443 convoluted make depend tricks.
2446 This variable is defined but not used by Configure.
2447 The value is a plain '' and is not useful.
2449 fpossize (fpossize.U):
2450 This variable contains the size of a fpostype in bytes.
2452 fpostype (fpostype.U):
2453 This variable defines Fpos_t to be something like fpos_t, long,
2454 uint, or whatever type is used to declare file positions in libc.
2456 freetype (mallocsrc.U):
2457 This variable contains the return type of free(). It is usually
2458 void, but occasionally int.
2461 This variable contains the command used by Configure
2462 to copy files from the target host. Useful and available
2463 only during Perl build.
2464 The string ':' if not cross-compiling.
2467 This variable contains the full pathname to 'ar', whether or
2468 not the user has specified 'portability'. This is only used
2472 This variable contains the full pathname to 'csh', whether or
2473 not the user has specified 'portability'. This is only used
2474 in the compiled C program, and we assume that all systems which
2475 can share this executable will have the same full pathname to
2478 full_sed (Loc_sed.U):
2479 This variable contains the full pathname to 'sed', whether or
2480 not the user has specified 'portability'. This is only used
2481 in the compiled C program, and we assume that all systems which
2482 can share this executable will have the same full pathname to
2485 gccansipedantic (gccvers.U):
2486 If GNU cc (gcc) is used, this variable will enable (if set) the
2487 -ansi and -pedantic ccflags for building core files (through
2488 cflags script). (See Porting/pumpkin.pod for full description).
2490 gccosandvers (gccvers.U):
2491 If GNU cc (gcc) is used, this variable holds the operating system
2492 and version used to compile gcc. It is set to '' if not gcc,
2493 or if nothing useful can be parsed as the os version.
2495 gccversion (gccvers.U):
2496 If GNU cc (gcc) is used, this variable holds '1' or '2' to
2497 indicate whether the compiler is version 1 or 2. This is used in
2498 setting some of the default cflags. It is set to '' if not gcc.
2500 getgrent_r_proto (d_getgrent_r.U):
2501 This variable encodes the prototype of getgrent_r.
2502 It is zero if d_getgrent_r is undef, and one of the
2503 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrent_r
2506 getgrgid_r_proto (d_getgrgid_r.U):
2507 This variable encodes the prototype of getgrgid_r.
2508 It is zero if d_getgrgid_r is undef, and one of the
2509 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrgid_r
2512 getgrnam_r_proto (d_getgrnam_r.U):
2513 This variable encodes the prototype of getgrnam_r.
2514 It is zero if d_getgrnam_r is undef, and one of the
2515 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrnam_r
2518 gethostbyaddr_r_proto (d_gethostbyaddr_r.U):
2519 This variable encodes the prototype of gethostbyaddr_r.
2520 It is zero if d_gethostbyaddr_r is undef, and one of the
2521 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyaddr_r
2524 gethostbyname_r_proto (d_gethostbyname_r.U):
2525 This variable encodes the prototype of gethostbyname_r.
2526 It is zero if d_gethostbyname_r is undef, and one of the
2527 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyname_r
2530 gethostent_r_proto (d_gethostent_r.U):
2531 This variable encodes the prototype of gethostent_r.
2532 It is zero if d_gethostent_r is undef, and one of the
2533 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostent_r
2536 getlogin_r_proto (d_getlogin_r.U):
2537 This variable encodes the prototype of getlogin_r.
2538 It is zero if d_getlogin_r is undef, and one of the
2539 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getlogin_r
2542 getnetbyaddr_r_proto (d_getnetbyaddr_r.U):
2543 This variable encodes the prototype of getnetbyaddr_r.
2544 It is zero if d_getnetbyaddr_r is undef, and one of the
2545 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyaddr_r
2548 getnetbyname_r_proto (d_getnetbyname_r.U):
2549 This variable encodes the prototype of getnetbyname_r.
2550 It is zero if d_getnetbyname_r is undef, and one of the
2551 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyname_r
2554 getnetent_r_proto (d_getnetent_r.U):
2555 This variable encodes the prototype of getnetent_r.
2556 It is zero if d_getnetent_r is undef, and one of the
2557 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetent_r
2560 getprotobyname_r_proto (d_getprotobyname_r.U):
2561 This variable encodes the prototype of getprotobyname_r.
2562 It is zero if d_getprotobyname_r is undef, and one of the
2563 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobyname_r
2566 getprotobynumber_r_proto (d_getprotobynumber_r.U):
2567 This variable encodes the prototype of getprotobynumber_r.
2568 It is zero if d_getprotobynumber_r is undef, and one of the
2569 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobynumber_r
2572 getprotoent_r_proto (d_getprotoent_r.U):
2573 This variable encodes the prototype of getprotoent_r.
2574 It is zero if d_getprotoent_r is undef, and one of the
2575 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotoent_r
2578 getpwent_r_proto (d_getpwent_r.U):
2579 This variable encodes the prototype of getpwent_r.
2580 It is zero if d_getpwent_r is undef, and one of the
2581 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwent_r
2584 getpwnam_r_proto (d_getpwnam_r.U):
2585 This variable encodes the prototype of getpwnam_r.
2586 It is zero if d_getpwnam_r is undef, and one of the
2587 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwnam_r
2590 getpwuid_r_proto (d_getpwuid_r.U):
2591 This variable encodes the prototype of getpwuid_r.
2592 It is zero if d_getpwuid_r is undef, and one of the
2593 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwuid_r
2596 getservbyname_r_proto (d_getservbyname_r.U):
2597 This variable encodes the prototype of getservbyname_r.
2598 It is zero if d_getservbyname_r is undef, and one of the
2599 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyname_r
2602 getservbyport_r_proto (d_getservbyport_r.U):
2603 This variable encodes the prototype of getservbyport_r.
2604 It is zero if d_getservbyport_r is undef, and one of the
2605 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyport_r
2608 getservent_r_proto (d_getservent_r.U):
2609 This variable encodes the prototype of getservent_r.
2610 It is zero if d_getservent_r is undef, and one of the
2611 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservent_r
2614 getspnam_r_proto (d_getspnam_r.U):
2615 This variable encodes the prototype of getspnam_r.
2616 It is zero if d_getspnam_r is undef, and one of the
2617 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getspnam_r
2621 This variable contains the format string used for printing a Gid_t.
2623 gidsign (gidsign.U):
2624 This variable contains the signedness of a gidtype.
2625 1 for unsigned, -1 for signed.
2627 gidsize (gidsize.U):
2628 This variable contains the size of a gidtype in bytes.
2630 gidtype (gidtype.U):
2631 This variable defines Gid_t to be something like gid_t, int,
2632 ushort, or whatever type is used to declare the return type
2633 of getgid(). Typically, it is the type of group ids in the kernel.
2636 This variable holds the general path (space-separated) used to
2637 find libraries. It may contain directories that do not exist on
2638 this platform, libpth is the cleaned-up version.
2641 This variable is used internally by Configure to determine the
2642 full pathname (if any) of the gmake program. After Configure runs,
2643 the value is reset to a plain "gmake" and is not useful.
2645 gmtime_r_proto (d_gmtime_r.U):
2646 This variable encodes the prototype of gmtime_r.
2647 It is zero if d_gmtime_r is undef, and one of the
2648 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gmtime_r
2651 gnulibc_version (d_gnulibc.U):
2652 This variable contains the version number of the GNU C library.
2653 It is usually something like '2.2.5'. It is a plain '' if this
2654 is not the GNU C library, or if the version is unknown.
2657 This variable is used internally by Configure to determine the
2658 full pathname (if any) of the grep program. After Configure runs,
2659 the value is reset to a plain "grep" and is not useful.
2662 This variable contains a command that produces the text of the
2663 /etc/group file. This is normally "cat /etc/group", but can be
2664 "ypcat group" when NIS is used.
2665 On some systems, such as os390, there may be no equivalent
2666 command, in which case this variable is unset.
2668 groupstype (groupstype.U):
2669 This variable defines Groups_t to be something like gid_t, int,
2670 ushort, or whatever type is used for the second argument to
2671 getgroups() and setgroups(). Usually, this is the same as
2672 gidtype (gid_t), but sometimes it isn't.
2675 This variable is used internally by Configure to determine the
2676 full pathname (if any) of the gzip program. After Configure runs,
2677 the value is reset to a plain "gzip" and is not useful.
2679 h_fcntl (h_fcntl.U):
2680 This is variable gets set in various places to tell i_fcntl that
2681 <fcntl.h> should be included.
2683 h_sysfile (h_sysfile.U):
2684 This is variable gets set in various places to tell i_sys_file that
2685 <sys/file.h> should be included.
2688 Gives the type of hints used for previous answers. May be one of
2689 "default", "recommended" or "previous".
2692 This variable contains a command that produces the text of the
2693 /etc/hosts file. This is normally "cat /etc/hosts", but can be
2694 "ypcat hosts" when NIS is used.
2695 On some systems, such as os390, there may be no equivalent
2696 command, in which case this variable is unset.
2698 html1dir (html1dir.U):
2699 This variable contains the name of the directory in which html
2700 source pages are to be put. This directory is for pages
2701 that describe whole programs, not libraries or modules. It
2702 is intended to correspond roughly to section 1 of the Unix
2705 html1direxp (html1dir.U):
2706 This variable is the same as the html1dir variable, but is filename
2707 expanded at configuration time, for convenient use in makefiles.
2709 html3dir (html3dir.U):
2710 This variable contains the name of the directory in which html
2711 source pages are to be put. This directory is for pages
2712 that describe libraries or modules. It is intended to
2713 correspond roughly to section 3 of the Unix manuals.
2715 html3direxp (html3dir.U):
2716 This variable is the same as the html3dir variable, but is filename
2717 expanded at configuration time, for convenient use in makefiles.
2720 This variable is the size of an I16 in bytes.
2723 This variable contains the C type used for Perl's I16.
2726 This variable is the size of an I32 in bytes.
2729 This variable contains the C type used for Perl's I32.
2732 This variable is the size of an I64 in bytes.
2735 This variable contains the C type used for Perl's I64.
2738 This variable is the size of an I8 in bytes.
2741 This variable contains the C type used for Perl's I8.
2743 i_arpainet (i_arpainet.U):
2744 This variable conditionally defines the I_ARPA_INET symbol,
2745 and indicates whether a C program should include <arpa/inet.h>.
2747 i_bsdioctl (i_sysioctl.U):
2748 This variable conditionally defines the I_SYS_BSDIOCTL symbol, which
2749 indicates to the C program that <sys/bsdioctl.h> exists and should
2752 i_crypt (i_crypt.U):
2753 This variable conditionally defines the I_CRYPT symbol, and indicates
2754 whether a C program should include <crypt.h>.
2757 This variable conditionally defines the I_DB symbol, and indicates
2758 whether a C program may include Berkeley's DB include file <db.h>.
2761 This variable conditionally defines the I_DBM symbol, which
2762 indicates to the C program that <dbm.h> exists and should
2765 i_dirent (i_dirent.U):
2766 This variable conditionally defines I_DIRENT, which indicates
2767 to the C program that it should include <dirent.h>.
2770 This variable conditionally defines the I_DLD symbol, which
2771 indicates to the C program that <dld.h> (GNU dynamic loading)
2772 exists and should be included.
2774 i_dlfcn (i_dlfcn.U):
2775 This variable conditionally defines the I_DLFCN symbol, which
2776 indicates to the C program that <dlfcn.h> exists and should
2779 i_fcntl (i_fcntl.U):
2780 This variable controls the value of I_FCNTL (which tells
2781 the C program to include <fcntl.h>).
2783 i_float (i_float.U):
2784 This variable conditionally defines the I_FLOAT symbol, and indicates
2785 whether a C program may include <float.h> to get symbols like DBL_MAX
2786 or DBL_MIN, i.e. machine dependent floating point values.
2789 This variable conditionally defines the I_FP symbol, and indicates
2790 whether a C program should include <fp.h>.
2792 i_fp_class (i_fp_class.U):
2793 This variable conditionally defines the I_FP_CLASS symbol, and indicates
2794 whether a C program should include <fp_class.h>.
2797 This variable conditionally defines the I_GDBM symbol, which
2798 indicates to the C program that <gdbm.h> exists and should
2802 This variable conditionally defines the I_GRP symbol, and indicates
2803 whether a C program should include <grp.h>.
2805 i_ieeefp (i_ieeefp.U):
2806 This variable conditionally defines the I_IEEEFP symbol, and indicates
2807 whether a C program should include <ieeefp.h>.
2809 i_inttypes (i_inttypes.U):
2810 This variable conditionally defines the I_INTTYPES symbol,
2811 and indicates whether a C program should include <inttypes.h>.
2813 i_langinfo (i_langinfo.U):
2814 This variable conditionally defines the I_LANGINFO symbol,
2815 and indicates whether a C program should include <langinfo.h>.
2817 i_libutil (i_libutil.U):
2818 This variable conditionally defines the I_LIBUTIL symbol, and indicates
2819 whether a C program should include <libutil.h>.
2821 i_limits (i_limits.U):
2822 This variable conditionally defines the I_LIMITS symbol, and indicates
2823 whether a C program may include <limits.h> to get symbols like WORD_BIT
2826 i_locale (i_locale.U):
2827 This variable conditionally defines the I_LOCALE symbol,
2828 and indicates whether a C program should include <locale.h>.
2830 i_machcthr (i_machcthr.U):
2831 This variable conditionally defines the I_MACH_CTHREADS symbol,
2832 and indicates whether a C program should include <mach/cthreads.h>.
2834 i_malloc (i_malloc.U):
2835 This variable conditionally defines the I_MALLOC symbol, and indicates
2836 whether a C program should include <malloc.h>.
2839 This variable conditionally defines the I_MATH symbol, and indicates
2840 whether a C program may include <math.h>.
2842 i_memory (i_memory.U):
2843 This variable conditionally defines the I_MEMORY symbol, and indicates
2844 whether a C program should include <memory.h>.
2846 i_mntent (i_mntent.U):
2847 This variable conditionally defines the I_MNTENT symbol, and indicates
2848 whether a C program should include <mntent.h>.
2851 This variable conditionally defines the I_NDBM symbol, which
2852 indicates to the C program that <ndbm.h> exists and should
2855 i_netdb (i_netdb.U):
2856 This variable conditionally defines the I_NETDB symbol, and indicates
2857 whether a C program should include <netdb.h>.
2859 i_neterrno (i_neterrno.U):
2860 This variable conditionally defines the I_NET_ERRNO symbol, which
2861 indicates to the C program that <net/errno.h> exists and should
2864 i_netinettcp (i_netinettcp.U):
2865 This variable conditionally defines the I_NETINET_TCP symbol,
2866 and indicates whether a C program should include <netinet/tcp.h>.
2869 This variable conditionally defines I_NETINET_IN, which indicates
2870 to the C program that it should include <netinet/in.h>. Otherwise,
2871 you may try <sys/in.h>.
2874 This variable conditionally defines the I_POLL symbol, and indicates
2875 whether a C program should include <poll.h>.
2878 This variable conditionally defines the I_PROT symbol, and indicates
2879 whether a C program should include <prot.h>.
2881 i_pthread (i_pthread.U):
2882 This variable conditionally defines the I_PTHREAD symbol,
2883 and indicates whether a C program should include <pthread.h>.
2886 This variable conditionally defines I_PWD, which indicates
2887 to the C program that it should include <pwd.h>.
2889 i_rpcsvcdbm (i_dbm.U):
2890 This variable conditionally defines the I_RPCSVC_DBM symbol, which
2891 indicates to the C program that <rpcsvc/dbm.h> exists and should
2892 be included. Some System V systems might need this instead of <dbm.h>.
2895 This variable conditionally defines the I_SFIO symbol,
2896 and indicates whether a C program should include <sfio.h>.
2898 i_sgtty (i_termio.U):
2899 This variable conditionally defines the I_SGTTY symbol, which
2900 indicates to the C program that it should include <sgtty.h> rather
2903 i_shadow (i_shadow.U):
2904 This variable conditionally defines the I_SHADOW symbol, and indicates
2905 whether a C program should include <shadow.h>.
2907 i_socks (i_socks.U):
2908 This variable conditionally defines the I_SOCKS symbol, and indicates
2909 whether a C program should include <socks.h>.
2911 i_stdarg (i_varhdr.U):
2912 This variable conditionally defines the I_STDARG symbol, which
2913 indicates to the C program that <stdarg.h> exists and should
2916 i_stddef (i_stddef.U):
2917 This variable conditionally defines the I_STDDEF symbol, which
2918 indicates to the C program that <stddef.h> exists and should
2921 i_stdlib (i_stdlib.U):
2922 This variable conditionally defines the I_STDLIB symbol, which
2923 indicates to the C program that <stdlib.h> exists and should
2926 i_string (i_string.U):
2927 This variable conditionally defines the I_STRING symbol, which
2928 indicates that <string.h> should be included rather than <strings.h>.
2930 i_sunmath (i_sunmath.U):
2931 This variable conditionally defines the I_SUNMATH symbol, and indicates
2932 whether a C program should include <sunmath.h>.
2934 i_sysaccess (i_sysaccess.U):
2935 This variable conditionally defines the I_SYS_ACCESS symbol,
2936 and indicates whether a C program should include <sys/access.h>.
2938 i_sysdir (i_sysdir.U):
2939 This variable conditionally defines the I_SYS_DIR symbol, and indicates
2940 whether a C program should include <sys/dir.h>.
2942 i_sysfile (i_sysfile.U):
2943 This variable conditionally defines the I_SYS_FILE symbol, and indicates
2944 whether a C program should include <sys/file.h> to get R_OK and friends.
2946 i_sysfilio (i_sysioctl.U):
2947 This variable conditionally defines the I_SYS_FILIO symbol, which
2948 indicates to the C program that <sys/filio.h> exists and should
2949 be included in preference to <sys/ioctl.h>.
2952 This variable conditionally defines I_SYS_IN, which indicates
2953 to the C program that it should include <sys/in.h> instead of
2956 i_sysioctl (i_sysioctl.U):
2957 This variable conditionally defines the I_SYS_IOCTL symbol, which
2958 indicates to the C program that <sys/ioctl.h> exists and should
2961 i_syslog (i_syslog.U):
2962 This variable conditionally defines the I_SYSLOG symbol,
2963 and indicates whether a C program should include <syslog.h>.
2965 i_sysmman (i_sysmman.U):
2966 This variable conditionally defines the I_SYS_MMAN symbol, and
2967 indicates whether a C program should include <sys/mman.h>.
2969 i_sysmode (i_sysmode.U):
2970 This variable conditionally defines the I_SYSMODE symbol,
2971 and indicates whether a C program should include <sys/mode.h>.
2973 i_sysmount (i_sysmount.U):
2974 This variable conditionally defines the I_SYSMOUNT symbol,
2975 and indicates whether a C program should include <sys/mount.h>.
2977 i_sysndir (i_sysndir.U):
2978 This variable conditionally defines the I_SYS_NDIR symbol, and indicates
2979 whether a C program should include <sys/ndir.h>.
2981 i_sysparam (i_sysparam.U):
2982 This variable conditionally defines the I_SYS_PARAM symbol, and indicates
2983 whether a C program should include <sys/param.h>.
2985 i_sysresrc (i_sysresrc.U):
2986 This variable conditionally defines the I_SYS_RESOURCE symbol,
2987 and indicates whether a C program should include <sys/resource.h>.
2989 i_syssecrt (i_syssecrt.U):
2990 This variable conditionally defines the I_SYS_SECURITY symbol,
2991 and indicates whether a C program should include <sys/security.h>.
2993 i_sysselct (i_sysselct.U):
2994 This variable conditionally defines I_SYS_SELECT, which indicates
2995 to the C program that it should include <sys/select.h> in order to
2996 get the definition of struct timeval.
2998 i_syssockio (i_sysioctl.U):
2999 This variable conditionally defines I_SYS_SOCKIO to indicate to the
3000 C program that socket ioctl codes may be found in <sys/sockio.h>
3001 instead of <sys/ioctl.h>.
3003 i_sysstat (i_sysstat.U):
3004 This variable conditionally defines the I_SYS_STAT symbol,
3005 and indicates whether a C program should include <sys/stat.h>.
3007 i_sysstatfs (i_sysstatfs.U):
3008 This variable conditionally defines the I_SYSSTATFS symbol,
3009 and indicates whether a C program should include <sys/statfs.h>.
3011 i_sysstatvfs (i_sysstatvfs.U):
3012 This variable conditionally defines the I_SYSSTATVFS symbol,
3013 and indicates whether a C program should include <sys/statvfs.h>.
3015 i_systime (i_time.U):
3016 This variable conditionally defines I_SYS_TIME, which indicates
3017 to the C program that it should include <sys/time.h>.
3019 i_systimek (i_time.U):
3020 This variable conditionally defines I_SYS_TIME_KERNEL, which
3021 indicates to the C program that it should include <sys/time.h>
3022 with KERNEL defined.
3024 i_systimes (i_systimes.U):
3025 This variable conditionally defines the I_SYS_TIMES symbol, and indicates
3026 whether a C program should include <sys/times.h>.
3028 i_systypes (i_systypes.U):
3029 This variable conditionally defines the I_SYS_TYPES symbol,
3030 and indicates whether a C program should include <sys/types.h>.
3032 i_sysuio (i_sysuio.U):
3033 This variable conditionally defines the I_SYSUIO symbol, and indicates
3034 whether a C program should include <sys/uio.h>.
3036 i_sysun (i_sysun.U):
3037 This variable conditionally defines I_SYS_UN, which indicates
3038 to the C program that it should include <sys/un.h> to get UNIX
3039 domain socket definitions.
3041 i_sysutsname (i_sysutsname.U):
3042 This variable conditionally defines the I_SYSUTSNAME symbol,
3043 and indicates whether a C program should include <sys/utsname.h>.
3045 i_sysvfs (i_sysvfs.U):
3046 This variable conditionally defines the I_SYSVFS symbol,
3047 and indicates whether a C program should include <sys/vfs.h>.
3049 i_syswait (i_syswait.U):
3050 This variable conditionally defines I_SYS_WAIT, which indicates
3051 to the C program that it should include <sys/wait.h>.
3053 i_termio (i_termio.U):
3054 This variable conditionally defines the I_TERMIO symbol, which
3055 indicates to the C program that it should include <termio.h> rather
3058 i_termios (i_termio.U):
3059 This variable conditionally defines the I_TERMIOS symbol, which
3060 indicates to the C program that the POSIX <termios.h> file is
3064 This variable conditionally defines I_TIME, which indicates
3065 to the C program that it should include <time.h>.
3067 i_unistd (i_unistd.U):
3068 This variable conditionally defines the I_UNISTD symbol, and indicates
3069 whether a C program should include <unistd.h>.
3071 i_ustat (i_ustat.U):
3072 This variable conditionally defines the I_USTAT symbol, and indicates
3073 whether a C program should include <ustat.h>.
3075 i_utime (i_utime.U):
3076 This variable conditionally defines the I_UTIME symbol, and indicates
3077 whether a C program should include <utime.h>.
3079 i_values (i_values.U):
3080 This variable conditionally defines the I_VALUES symbol, and indicates
3081 whether a C program may include <values.h> to get symbols like MAXLONG
3084 i_varargs (i_varhdr.U):
3085 This variable conditionally defines I_VARARGS, which indicates
3086 to the C program that it should include <varargs.h>.
3088 i_varhdr (i_varhdr.U):
3089 Contains the name of the header to be included to get va_dcl definition.
3090 Typically one of varargs.h or stdarg.h.
3092 i_vfork (i_vfork.U):
3093 This variable conditionally defines the I_VFORK symbol, and indicates
3094 whether a C program should include vfork.h.
3096 ignore_versioned_solibs (libs.U):
3097 This variable should be non-empty if non-versioned shared
3098 libraries (libfoo.so.x.y) are to be ignored (because they
3099 cannot be linked against).
3101 inc_version_list (inc_version_list.U):
3102 This variable specifies the list of subdirectories in over
3103 which perl.c:incpush() and lib/lib.pm will automatically
3104 search when adding directories to @INC. The elements in
3105 the list are separated by spaces. This is only useful
3106 if you have a perl library directory tree structured like the
3107 default one. See INSTALL for how this works. The versioned
3108 site_perl directory was introduced in 5.005, so that is the
3109 lowest possible value.
3111 inc_version_list_init (inc_version_list.U):
3112 This variable holds the same list as inc_version_list, but
3113 each item is enclosed in double quotes and separated by commas,
3114 suitable for use in the PERL_INC_VERSION_LIST initialization.
3117 This variable must preceed the normal include path to get hte
3118 right one, as in "$incpath/usr/include" or "$incpath/usr/lib".
3119 Value can be "" or "/bsd43" on mips.
3122 This variable is defined but not used by Configure.
3123 The value is a plain '' and is not useful.
3125 installarchlib (archlib.U):
3126 This variable is really the same as archlibexp but may differ on
3127 those systems using AFS. For extra portability, only this variable
3128 should be used in makefiles.
3131 This variable is the same as binexp unless AFS is running in which case
3132 the user is explicitely prompted for it. This variable should always
3133 be used in your makefiles for maximum portability.
3135 installhtml1dir (html1dir.U):
3136 This variable is really the same as html1direxp, unless you are
3137 using a different installprefix. For extra portability, you
3138 should only use this variable within your makefiles.
3140 installhtml3dir (html3dir.U):
3141 This variable is really the same as html3direxp, unless you are
3142 using a different installprefix. For extra portability, you
3143 should only use this variable within your makefiles.
3145 installman1dir (man1dir.U):
3146 This variable is really the same as man1direxp, unless you are using
3147 AFS in which case it points to the read/write location whereas
3148 man1direxp only points to the read-only access location. For extra
3149 portability, you should only use this variable within your makefiles.
3151 installman3dir (man3dir.U):
3152 This variable is really the same as man3direxp, unless you are using
3153 AFS in which case it points to the read/write location whereas
3154 man3direxp only points to the read-only access location. For extra
3155 portability, you should only use this variable within your makefiles.
3157 installprefix (installprefix.U):
3158 This variable holds the name of the directory below which
3159 "make install" will install the package. For most users, this
3160 is the same as prefix. However, it is useful for
3161 installing the software into a different (usually temporary)
3162 location after which it can be bundled up and moved somehow
3163 to the final location specified by prefix.
3165 installprefixexp (installprefix.U):
3166 This variable holds the full absolute path of installprefix
3167 with all ~-expansion done.
3169 installprivlib (privlib.U):
3170 This variable is really the same as privlibexp but may differ on
3171 those systems using AFS. For extra portability, only this variable
3172 should be used in makefiles.
3174 installscript (scriptdir.U):
3175 This variable is usually the same as scriptdirexp, unless you are on
3176 a system running AFS, in which case they may differ slightly. You
3177 should always use this variable within your makefiles for portability.
3179 installsitearch (sitearch.U):
3180 This variable is really the same as sitearchexp but may differ on
3181 those systems using AFS. For extra portability, only this variable
3182 should be used in makefiles.
3184 installsitebin (sitebin.U):
3185 This variable is usually the same as sitebinexp, unless you are on
3186 a system running AFS, in which case they may differ slightly. You
3187 should always use this variable within your makefiles for portability.
3189 installsitehtml1dir (sitehtml1dir.U):
3190 This variable is really the same as sitehtml1direxp, unless you are using
3191 AFS in which case it points to the read/write location whereas
3192 html1direxp only points to the read-only access location. For extra
3193 portability, you should only use this variable within your makefiles.
3195 installsitehtml3dir (sitehtml3dir.U):
3196 This variable is really the same as sitehtml3direxp, unless you are using
3197 AFS in which case it points to the read/write location whereas
3198 html3direxp only points to the read-only access location. For extra
3199 portability, you should only use this variable within your makefiles.
3201 installsitelib (sitelib.U):
3202 This variable is really the same as sitelibexp but may differ on
3203 those systems using AFS. For extra portability, only this variable
3204 should be used in makefiles.
3206 installsiteman1dir (siteman1dir.U):
3207 This variable is really the same as siteman1direxp, unless you are using
3208 AFS in which case it points to the read/write location whereas
3209 man1direxp only points to the read-only access location. For extra
3210 portability, you should only use this variable within your makefiles.
3212 installsiteman3dir (siteman3dir.U):
3213 This variable is really the same as siteman3direxp, unless you are using
3214 AFS in which case it points to the read/write location whereas
3215 man3direxp only points to the read-only access location. For extra
3216 portability, you should only use this variable within your makefiles.
3218 installsitescript (sitescript.U):
3219 This variable is usually the same as sitescriptexp, unless you are on
3220 a system running AFS, in which case they may differ slightly. You
3221 should always use this variable within your makefiles for portability.
3223 installstyle (installstyle.U):
3224 This variable describes the "style" of the perl installation.
3225 This is intended to be useful for tools that need to
3226 manipulate entire perl distributions. Perl itself doesn't use
3227 this to find its libraries -- the library directories are
3228 stored directly in Config.pm. Currently, there are only two
3229 styles: "lib" and "lib/perl5". The default library locations
3230 (e.g. privlib, sitelib) are either $prefix/lib or
3231 $prefix/lib/perl5. The former is useful if $prefix is a
3232 directory dedicated to perl (e.g. /opt/perl), while the latter
3233 is useful if $prefix is shared by many packages, e.g. if
3236 Unfortunately, while this "style" variable is used to set
3237 defaults for all three directory hierarchies (core, vendor, and
3238 site), there is no guarantee that the same style is actually
3239 appropriate for all those directories. For example, $prefix
3240 might be /opt/perl, but $siteprefix might be /usr/local.
3241 (Perhaps, in retrospect, the "lib" style should never have been
3242 supported, but it did seem like a nice idea at the time.)
3244 The situation is even less clear for tools such as MakeMaker
3245 that can be used to install additional modules into
3246 non-standard places. For example, if a user intends to install
3247 a module into a private directory (perhaps by setting PREFIX on
3248 the Makefile.PL command line), then there is no reason to
3249 assume that the Configure-time $installstyle setting will be
3250 relevant for that PREFIX.
3252 This may later be extended to include other information, so
3253 be careful with pattern-matching on the results.
3255 For compatibility with perl5.005 and earlier, the default
3256 setting is based on whether or not $prefix contains the string
3259 installusrbinperl (instubperl.U):
3260 This variable tells whether Perl should be installed also as
3261 /usr/bin/perl in addition to
3264 installvendorarch (vendorarch.U):
3265 This variable is really the same as vendorarchexp but may differ on
3266 those systems using AFS. For extra portability, only this variable
3267 should be used in makefiles.
3269 installvendorbin (vendorbin.U):
3270 This variable is really the same as vendorbinexp but may differ on
3271 those systems using AFS. For extra portability, only this variable
3272 should be used in makefiles.
3274 installvendorhtml1dir (vendorhtml1dir.U):
3275 This variable is really the same as vendorhtml1direxp but may differ on
3276 those systems using AFS. For extra portability, only this variable
3277 should be used in makefiles.
3279 installvendorhtml3dir (vendorhtml3dir.U):
3280 This variable is really the same as vendorhtml3direxp but may differ on
3281 those systems using AFS. For extra portability, only this variable
3282 should be used in makefiles.
3284 installvendorlib (vendorlib.U):
3285 This variable is really the same as vendorlibexp but may differ on
3286 those systems using AFS. For extra portability, only this variable
3287 should be used in makefiles.
3289 installvendorman1dir (vendorman1dir.U):
3290 This variable is really the same as vendorman1direxp but may differ on
3291 those systems using AFS. For extra portability, only this variable
3292 should be used in makefiles.
3294 installvendorman3dir (vendorman3dir.U):
3295 This variable is really the same as vendorman3direxp but may differ on
3296 those systems using AFS. For extra portability, only this variable
3297 should be used in makefiles.
3299 installvendorscript (vendorscript.U):
3300 This variable is really the same as vendorscriptexp but may differ on
3301 those systems using AFS. For extra portability, only this variable
3302 should be used in makefiles.
3304 intsize (intsize.U):
3305 This variable contains the value of the INTSIZE symbol, which
3306 indicates to the C program how many bytes there are in an int.
3308 issymlink (issymlink.U):
3309 This variable holds the test command to test for a symbolic link
3310 (if they are supported). Typical values include 'test -h' and
3313 ivdformat (perlxvf.U):
3314 This variable contains the format string used for printing
3315 a Perl IV as a signed decimal integer.
3318 This variable is the size of an IV in bytes.
3321 This variable contains the C type used for Perl's IV.
3323 known_extensions (Extensions.U):
3324 This variable holds a list of all XS extensions included in
3328 This variable is defined but not used by Configure.
3329 The value is a plain '' and is not useful.
3332 This variable indicates the program to be used to link
3333 libraries for dynamic loading. On some systems, it is 'ld'.
3334 On ELF systems, it should be $cc. Mostly, we'll try to respect
3335 the hint file setting.
3337 lddlflags (dlsrc.U):
3338 This variable contains any special flags that might need to be
3339 passed to $ld to create a shared library suitable for dynamic
3340 loading. It is up to the makefile to use it. For hpux, it
3341 should be '-b'. For sunos 4.1, it is empty.
3343 ldflags (ccflags.U):
3344 This variable contains any additional C loader flags desired by
3345 the user. It is up to the Makefile to use this.
3347 ldflags_uselargefiles (uselfs.U):
3348 This variable contains the loader flags needed by large file builds
3349 and added to ldflags by hints files.
3351 ldlibpthname (libperl.U):
3352 This variable holds the name of the shared library
3353 search path, often LD_LIBRARY_PATH. To get an empty
3354 string, the hints file must set this to 'none'.
3357 This variable is used internally by Configure to determine the
3358 full pathname (if any) of the less program. After Configure runs,
3359 the value is reset to a plain "less" and is not useful.
3362 This is an old synonym for _a.
3365 This variable contains the location of the C library.
3367 libperl (libperl.U):
3368 The perl executable is obtained by linking perlmain.c with
3369 libperl, any static extensions (usually just DynaLoader),
3370 and any other libraries needed on this system. libperl
3371 is usually libperl.a, but can also be libperl.so.xxx if
3372 the user wishes to build a perl executable with a shared
3376 This variable holds the general path (space-separated) used to find
3377 libraries. It is intended to be used by other units.
3380 This variable holds the additional libraries we want to use.
3381 It is up to the Makefile to deal with it. The list can be empty.
3384 This variable holds the directory names aka dirnames of the libraries
3385 we found and accepted, duplicates are removed.
3388 This variable holds the filenames aka basenames of the libraries
3389 we found and accepted.
3392 This variable holds the full pathnames of the libraries
3393 we found and accepted.
3396 This variable holds the directory names probed for libraries.
3398 libswanted (Myinit.U):
3399 This variable holds a list of all the libraries we want to
3400 search. The order is chosen to pick up the c library
3401 ahead of ucb or bsd libraries for SVR4.
3403 libswanted_uselargefiles (uselfs.U):
3404 This variable contains the libraries needed by large file builds
3405 and added to ldflags by hints files. It is a space separated list
3406 of the library names without the "lib" prefix or any suffix, just
3410 This variable is defined but not used by Configure.
3411 The value is a plain '' and is not useful.
3414 This variable is defined but not used by Configure.
3415 The value is a plain '' and is not useful.
3417 lkflags (ccflags.U):
3418 This variable contains any additional C partial linker flags desired by
3419 the user. It is up to the Makefile to use this.
3422 This variable is used internally by Configure to determine the
3423 full pathname (if any) of the ln program. After Configure runs,
3424 the value is reset to a plain "ln" and is not useful.
3427 This variable holds the name of the command to make
3428 symbolic links (if they are supported). It can be used
3429 in the Makefile. It is either 'ln -s' or 'ln'
3431 localtime_r_proto (d_localtime_r.U):
3432 This variable encodes the prototype of localtime_r.
3433 It is zero if d_localtime_r is undef, and one of the
3434 REENTRANT_PROTO_T_ABC macros of reentr.h if d_localtime_r
3437 locincpth (ccflags.U):
3438 This variable contains a list of additional directories to be
3439 searched by the compiler. The appropriate '-I' directives will
3440 be added to ccflags. This is intended to simplify setting
3441 local directories from the Configure command line.
3442 It's not much, but it parallels the loclibpth stuff in libpth.U.
3444 loclibpth (libpth.U):
3445 This variable holds the paths (space-separated) used to find local
3446 libraries. It is prepended to libpth, and is intended to be easily
3447 set from the command line.
3449 longdblsize (d_longdbl.U):
3450 This variable contains the value of the LONG_DOUBLESIZE symbol, which
3451 indicates to the C program how many bytes there are in a long double,
3452 if this system supports long doubles.
3454 longlongsize (d_longlong.U):
3455 This variable contains the value of the LONGLONGSIZE symbol, which
3456 indicates to the C program how many bytes there are in a long long,
3457 if this system supports long long.
3459 longsize (intsize.U):
3460 This variable contains the value of the LONGSIZE symbol, which
3461 indicates to the C program how many bytes there are in a long.
3464 This variable is defined but not used by Configure.
3465 The value is a plain '' and is not useful.
3468 This variable is defined but not used by Configure.
3469 The value is a plain '' and is not useful.
3472 This variable is used internally by Configure to determine the
3473 full pathname (if any) of the ls program. After Configure runs,
3474 the value is reset to a plain "ls" and is not useful.
3476 lseeksize (lseektype.U):
3477 This variable defines lseektype to be something like off_t, long,
3478 or whatever type is used to declare lseek offset's type in the
3479 kernel (which also appears to be lseek's return type).
3481 lseektype (lseektype.U):
3482 This variable defines lseektype to be something like off_t, long,
3483 or whatever type is used to declare lseek offset's type in the
3484 kernel (which also appears to be lseek's return type).
3487 This variable is defined but not used by Configure.
3488 The value is a plain '' and is not useful.
3491 This variable is defined but not used by Configure.
3492 The value is a plain '' and is not useful.
3495 This variable is used internally by Configure to determine the
3496 full pathname (if any) of the make program. After Configure runs,
3497 the value is reset to a plain "make" and is not useful.
3499 make_set_make (make.U):
3500 Some versions of 'make' set the variable MAKE. Others do not.
3501 This variable contains the string to be included in Makefile.SH
3502 so that MAKE is set if needed, and not if not needed.
3503 Possible values are:
3505 make_set_make='#' # If your make program handles this for you,
3507 make_set_make="MAKE=$make" # if it doesn't.
3509 This uses a comment character to distinguish a
3510 'set' value (from a previous config.sh or Configure '-D' option)
3511 from an uncomputed value.
3513 mallocobj (mallocsrc.U):
3514 This variable contains the name of the malloc.o that this package
3515 generates, if that malloc.o is preferred over the system malloc.
3516 Otherwise the value is null. This variable is intended for generating
3517 Makefiles. See mallocsrc.
3519 mallocsrc (mallocsrc.U):
3520 This variable contains the name of the malloc.c that comes with
3521 the package, if that malloc.c is preferred over the system malloc.
3522 Otherwise the value is null. This variable is intended for generating
3525 malloctype (mallocsrc.U):
3526 This variable contains the kind of ptr returned by malloc and realloc.
3528 man1dir (man1dir.U):
3529 This variable contains the name of the directory in which manual
3530 source pages are to be put. It is the responsibility of the
3531 Makefile.SH to get the value of this into the proper command.
3532 You must be prepared to do the ~name expansion yourself.
3534 man1direxp (man1dir.U):
3535 This variable is the same as the man1dir variable, but is filename
3536 expanded at configuration time, for convenient use in makefiles.
3538 man1ext (man1dir.U):
3539 This variable contains the extension that the manual page should
3540 have: one of 'n', 'l', or '1'. The Makefile must supply the '.'.
3543 man3dir (man3dir.U):
3544 This variable contains the name of the directory in which manual
3545 source pages are to be put. It is the responsibility of the
3546 Makefile.SH to get the value of this into the proper command.
3547 You must be prepared to do the ~name expansion yourself.
3549 man3direxp (man3dir.U):
3550 This variable is the same as the man3dir variable, but is filename
3551 expanded at configuration time, for convenient use in makefiles.
3553 man3ext (man3dir.U):
3554 This variable contains the extension that the manual page should
3555 have: one of 'n', 'l', or '3'. The Makefile must supply the '.'.
3559 This variable is used internally by Configure to determine the
3560 full pathname (if any) of the Mcc program. After Configure runs,
3561 the value is reset to a plain "Mcc" and is not useful.
3563 mips_type (usrinc.U):
3564 This variable holds the environment type for the mips system.
3565 Possible values are "BSD 4.3" and "System V".
3567 mistrustnm (Csym.U):
3568 This variable can be used to establish a fallthrough for the cases
3569 where nm fails to find a symbol. If usenm is false or usenm is true
3570 and mistrustnm is false, this variable has no effect. If usenm is true
3571 and mistrustnm is "compile", a test program will be compiled to try to
3572 find any symbol that can't be located via nm lookup. If mistrustnm is
3573 "run", the test program will be run as well as being compiled.
3576 This variable is used internally by Configure to determine the
3577 full pathname (if any) of the mkdir program. After Configure runs,
3578 the value is reset to a plain "mkdir" and is not useful.
3580 mmaptype (d_mmap.U):
3581 This symbol contains the type of pointer returned by mmap()
3582 (and simultaneously the type of the first argument).
3583 It can be 'void *' or 'caddr_t'.
3585 modetype (modetype.U):
3586 This variable defines modetype to be something like mode_t,
3587 int, unsigned short, or whatever type is used to declare file
3588 modes for system calls.
3591 This variable is used internally by Configure to determine the
3592 full pathname (if any) of the more program. After Configure runs,
3593 the value is reset to a plain "more" and is not useful.
3595 multiarch (multiarch.U):
3596 This variable conditionally defines the MULTIARCH symbol
3597 which signifies the presence of multiplatform files.
3598 This is normally set by hints files.
3601 This variable is defined but not used by Configure.
3602 The value is a plain '' and is not useful.
3604 myarchname (archname.U):
3605 This variable holds the architecture name computed by Configure in
3606 a previous run. It is not intended to be perused by any user and
3607 should never be set in a hint file.
3609 mydomain (myhostname.U):
3610 This variable contains the eventual value of the MYDOMAIN symbol,
3611 which is the domain of the host the program is going to run on.
3612 The domain must be appended to myhostname to form a complete host name.
3613 The dot comes with mydomain, and need not be supplied by the program.
3615 myhostname (myhostname.U):
3616 This variable contains the eventual value of the MYHOSTNAME symbol,
3617 which is the name of the host the program is going to run on.
3618 The domain is not kept with hostname, but must be gotten from mydomain.
3619 The dot comes with mydomain, and need not be supplied by the program.
3621 myuname (Oldconfig.U):
3622 The output of 'uname -a' if available, otherwise the hostname. On Xenix,
3623 pseudo variables assignments in the output are stripped, thank you. The
3624 whole thing is then lower-cased.
3627 This variable contains the '-n' flag if that is what causes the echo
3628 command to suppress newline. Otherwise it is null. Correct usage is
3629 $echo $n "prompt for a question: $c".
3631 need_va_copy (need_va_copy.U):
3632 This symbol, if defined, indicates that the system stores
3633 the variable argument list datatype, va_list, in a format
3634 that cannot be copied by simple assignment, so that some
3635 other means must be used when copying is required.
3636 As such systems vary in their provision (or non-provision)
3637 of copying mechanisms, handy.h defines a platform-
3638 independent macro, Perl_va_copy(src, dst), to do the job.
3640 netdb_hlen_type (netdbtype.U):
3641 This variable holds the type used for the 2nd argument to
3642 gethostbyaddr(). Usually, this is int or size_t or unsigned.
3643 This is only useful if you have gethostbyaddr(), naturally.
3645 netdb_host_type (netdbtype.U):
3646 This variable holds the type used for the 1st argument to
3647 gethostbyaddr(). Usually, this is char * or void *, possibly
3648 with or without a const prefix.
3649 This is only useful if you have gethostbyaddr(), naturally.
3651 netdb_name_type (netdbtype.U):
3652 This variable holds the type used for the argument to
3653 gethostbyname(). Usually, this is char * or const char *.
3654 This is only useful if you have gethostbyname(), naturally.
3656 netdb_net_type (netdbtype.U):
3657 This variable holds the type used for the 1st argument to
3658 getnetbyaddr(). Usually, this is int or long.
3659 This is only useful if you have getnetbyaddr(), naturally.
3662 This variable is used internally by Configure to determine the
3663 full pathname (if any) of the nm program. After Configure runs,
3664 the value is reset to a plain "nm" and is not useful.
3667 This variable holds the options that may be necessary for nm.
3669 nm_so_opt (usenm.U):
3670 This variable holds the options that may be necessary for nm
3671 to work on a shared library but that can not be used on an
3672 archive library. Currently, this is only used by Linux, where
3673 nm --dynamic is *required* to get symbols from an ELF library which
3674 has been stripped, but nm --dynamic is *fatal* on an archive library.
3675 Maybe Linux should just always set usenm=false.
3677 nonxs_ext (Extensions.U):
3678 This variable holds a list of all non-xs extensions included
3679 in the package. All of them will be built.
3682 This variable is used internally by Configure to determine the
3683 full pathname (if any) of the nroff program. After Configure runs,
3684 the value is reset to a plain "nroff" and is not useful.
3686 nv_preserves_uv_bits (perlxv.U):
3687 This variable indicates how many of bits type uvtype
3688 a variable nvtype can preserve.
3690 nveformat (perlxvf.U):
3691 This variable contains the format string used for printing
3692 a Perl NV using %e-ish floating point format.
3694 nvEUformat (perlxvf.U):
3695 This variable contains the format string used for printing
3696 a Perl NV using %E-ish floating point format.
3698 nvfformat (perlxvf.U):
3699 This variable confains the format string used for printing
3700 a Perl NV using %f-ish floating point format.
3702 nvFUformat (perlxvf.U):
3703 This variable confains the format string used for printing
3704 a Perl NV using %F-ish floating point format.
3706 nvgformat (perlxvf.U):
3707 This variable contains the format string used for printing
3708 a Perl NV using %g-ish floating point format.
3710 nvGUformat (perlxvf.U):
3711 This variable contains the format string used for printing
3712 a Perl NV using %G-ish floating point format.
3715 This variable is the size of an NV in bytes.
3718 This variable contains the C type used for Perl's NV.
3720 o_nonblock (nblock_io.U):
3721 This variable bears the symbol value to be used during open() or fcntl()
3722 to turn on non-blocking I/O for a file descriptor. If you wish to switch
3723 between blocking and non-blocking, you may try ioctl(FIOSNBIO) instead,
3724 but that is only supported by some devices.
3727 This is an old synonym for _o.
3729 old_pthread_create_joinable (d_pthrattrj.U):
3730 This variable defines the constant to use for creating joinable
3731 (aka undetached) pthreads. Unused if pthread.h defines
3732 PTHREAD_CREATE_JOINABLE. If used, possible values are
3733 PTHREAD_CREATE_UNDETACHED and __UNDETACHED.
3735 optimize (ccflags.U):
3736 This variable contains any optimizer/debugger flag that should be used.
3737 It is up to the Makefile to use it.
3739 orderlib (orderlib.U):
3740 This variable is "true" if the components of libraries must be ordered
3741 (with `lorder $* | tsort`) before placing them in an archive. Set to
3742 "false" if ranlib or ar can generate random libraries.
3744 osname (Oldconfig.U):
3745 This variable contains the operating system name (e.g. sunos,
3746 solaris, hpux, etc.). It can be useful later on for setting
3747 defaults. Any spaces are replaced with underscores. It is set
3748 to a null string if we can't figure it out.
3750 osvers (Oldconfig.U):
3751 This variable contains the operating system version (e.g.
3752 4.1.3, 5.2, etc.). It is primarily used for helping select
3753 an appropriate hints file, but might be useful elsewhere for
3754 setting defaults. It is set to '' if we can't figure it out.
3755 We try to be flexible about how much of the version number
3756 to keep, e.g. if 4.1.1, 4.1.2, and 4.1.3 are essentially the
3757 same for this package, hints files might just be os_4.0 or
3758 os_4.1, etc., not keeping separate files for each little release.
3760 otherlibdirs (otherlibdirs.U):
3761 This variable contains a colon-separated set of paths for the perl
3762 binary to search for additional library files or modules.
3763 These directories will be tacked to the end of @INC.
3764 Perl will automatically search below each path for version-
3765 and architecture-specific directories. See inc_version_list
3767 A value of ' ' means 'none' and is used to preserve this value
3768 for the next run through Configure.
3770 package (package.U):
3771 This variable contains the name of the package being constructed.
3772 It is primarily intended for the use of later Configure units.
3775 This variable contains the name of the preferred pager on the system.
3776 Usual values are (the full pathnames of) more, less, pg, or cat.
3779 This variable contains a command that produces the text of the
3780 /etc/passwd file. This is normally "cat /etc/passwd", but can be
3781 "ypcat passwd" when NIS is used.
3782 On some systems, such as os390, there may be no equivalent
3783 command, in which case this variable is unset.
3785 patchlevel (patchlevel.U):
3786 The patchlevel level of this package.
3787 The value of patchlevel comes from the patchlevel.h file.
3788 In a version number such as 5.6.1, this is the "6".
3789 In patchlevel.h, this is referred to as "PERL_VERSION".
3792 This is an old synonym for p_ in Head.U, the character
3793 used to separate elements in the command shell search PATH.
3796 This variable contains the full path (if any) to a previously
3797 installed perl5.005 or later suitable for running the script
3798 to determine inc_version_list.
3801 This variable is defined but not used by Configure.
3802 The value is a plain '' and is not useful.
3804 perl_patchlevel (patchlevel.U):
3805 This is the Perl patch level, a numeric change identifier,
3806 as defined by whichever source code maintenance system
3807 is used to maintain the patches; currently Perforce.
3808 It does not correlate with the Perl version numbers or
3809 the maintenance versus development dichotomy except
3810 by also being increasing.
3812 PERL_REVISION (Oldsyms.U):
3813 In a Perl version number such as 5.6.2, this is the 5.
3814 This value is manually set in patchlevel.h
3816 PERL_SUBVERSION (Oldsyms.U):
3817 In a Perl version number such as 5.6.2, this is the 2.
3818 Values greater than 50 represent potentially unstable
3819 development subversions.
3820 This value is manually set in patchlevel.h
3822 PERL_VERSION (Oldsyms.U):
3823 In a Perl version number such as 5.6.2, this is the 6.
3824 This value is manually set in patchlevel.h
3826 perladmin (perladmin.U):
3827 Electronic mail address of the perl5 administrator.
3830 The list of libraries needed by Perl only (any libraries needed
3831 by extensions only will by dropped, if using dynamic loading).
3833 perlpath (perlpath.U):
3834 This variable contains the eventual value of the PERLPATH symbol,
3835 which contains the name of the perl interpreter to be used in
3836 shell scripts and in the "eval 'exec'" idiom. This variable is
3837 not necessarily the pathname of the file containing the perl
3838 interpreter; you must append the executable extension (_exe) if
3839 it is not already present. Note that Perl code that runs during
3840 the Perl build process cannot reference this variable, as Perl
3841 may not have been installed, or even if installed, may be a
3842 different version of Perl.
3845 This variable is used internally by Configure to determine the
3846 full pathname (if any) of the pg program. After Configure runs,
3847 the value is reset to a plain "pg" and is not useful.
3849 phostname (myhostname.U):
3850 This variable contains the eventual value of the PHOSTNAME symbol,
3851 which is a command that can be fed to popen() to get the host name.
3852 The program should probably not presume that the domain is or isn't
3855 pidtype (pidtype.U):
3856 This variable defines PIDTYPE to be something like pid_t, int,
3857 ushort, or whatever type is used to declare process ids in the kernel.
3860 Holds the private path used by Configure to find out the libraries.
3861 Its value is prepend to libpth. This variable takes care of special
3862 machines, like the mips. Usually, it should be empty.
3865 This variable is defined but not used by Configure.
3866 The value is a plain '' and is not useful.
3869 This variable is defined but not used by Configure.
3870 The value is a plain '' and is not useful.
3873 This variable holds the name of the directory below which the
3874 user will install the package. Usually, this is /usr/local, and
3875 executables go in /usr/local/bin, library stuff in /usr/local/lib,
3876 man pages in /usr/local/man, etc. It is only used to set defaults
3877 for things in bin.U, mansrc.U, privlib.U, or scriptdir.U.
3879 prefixexp (prefix.U):
3880 This variable holds the full absolute path of the directory below
3881 which the user will install the package. Derived from prefix.
3883 privlib (privlib.U):
3884 This variable contains the eventual value of the PRIVLIB symbol,
3885 which is the name of the private library for this package. It may
3886 have a ~ on the front. It is up to the makefile to eventually create
3887 this directory while performing installation (with ~ substitution).
3889 privlibexp (privlib.U):
3890 This variable is the ~name expanded version of privlib, so that you
3891 may use it directly in Makefiles or shell scripts.
3893 procselfexe (d_procselfexe.U):
3894 If d_procselfexe is defined, $procselfexe is the filename
3895 of the symbolic link pointing to the absolute pathname of
3896 the executing program.
3898 prototype (prototype.U):
3899 This variable holds the eventual value of CAN_PROTOTYPE, which
3900 indicates the C compiler can handle funciton prototypes.
3902 ptrsize (ptrsize.U):
3903 This variable contains the value of the PTRSIZE symbol, which
3904 indicates to the C program how many bytes there are in a pointer.
3906 quadkind (quadtype.U):
3907 This variable, if defined, encodes the type of a quad:
3908 1 = int, 2 = long, 3 = long long, 4 = int64_t.
3910 quadtype (quadtype.U):
3911 This variable defines Quad_t to be something like long, int,
3912 long long, int64_t, or whatever type is used for 64-bit integers.
3914 randbits (randfunc.U):
3915 Indicates how many bits are produced by the function used to
3916 generate normalized random numbers.
3918 randfunc (randfunc.U):
3919 Indicates the name of the random number function to use.
3920 Values include drand48, random, and rand. In C programs,
3921 the 'Drand01' macro is defined to generate uniformly distributed
3922 random numbers over the range [0., 1.[ (see drand01 and nrand).
3924 random_r_proto (d_random_r.U):
3925 This variable encodes the prototype of random_r.
3926 It is zero if d_random_r is undef, and one of the
3927 REENTRANT_PROTO_T_ABC macros of reentr.h if d_random_r
3930 randseedtype (randfunc.U):
3931 Indicates the type of the argument of the seedfunc.
3933 ranlib (orderlib.U):
3934 This variable is set to the pathname of the ranlib program, if it is
3935 needed to generate random libraries. Set to ":" if ar can generate
3936 random libraries or if random libraries are not supported
3938 rd_nodata (nblock_io.U):
3939 This variable holds the return code from read() when no data is
3940 present. It should be -1, but some systems return 0 when O_NDELAY is
3941 used, which is a shame because you cannot make the difference between
3942 no data and an EOF.. Sigh!
3944 readdir64_r_proto (d_readdir64_r.U):
3945 This variable encodes the prototype of readdir64_r.
3946 It is zero if d_readdir64_r is undef, and one of the
3947 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir64_r
3950 readdir_r_proto (d_readdir_r.U):
3951 This variable encodes the prototype of readdir_r.
3952 It is zero if d_readdir_r is undef, and one of the
3953 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir_r
3956 revision (patchlevel.U):
3957 The value of revision comes from the patchlevel.h file.
3958 In a version number such as 5.6.1, this is the "5".
3959 In patchlevel.h, this is referred to as "PERL_REVISION".
3962 This variable is used internally by Configure to determine the
3963 full pathname (if any) of the rm program. After Configure runs,
3964 the value is reset to a plain "rm" and is not useful.
3967 This variable is defined but not used by Configure.
3968 The value is a plain '' and is not useful.
3971 This variable contains the command used by Configure
3972 to copy and execute a cross-compiled executable in the
3973 target host. Useful and available only during Perl build.
3974 Empty string '' if not cross-compiling.
3977 This variable contains 'true' or 'false' depending whether the
3978 nm extraction should be performed or not, according to the value
3979 of usenm and the flags on the Configure command line.
3981 sched_yield (d_pthread_y.U):
3982 This variable defines the way to yield the execution
3983 of the current thread.
3985 scriptdir (scriptdir.U):
3986 This variable holds the name of the directory in which the user wants
3987 to put publicly scripts for the package in question. It is either
3988 the same directory as for binaries, or a special one that can be
3989 mounted across different architectures, like /usr/share. Programs
3990 must be prepared to deal with ~name expansion.
3992 scriptdirexp (scriptdir.U):
3993 This variable is the same as scriptdir, but is filename expanded
3994 at configuration time, for programs not wanting to bother with it.
3997 This variable is used internally by Configure to determine the
3998 full pathname (if any) of the sed program. After Configure runs,
3999 the value is reset to a plain "sed" and is not useful.
4001 seedfunc (randfunc.U):
4002 Indicates the random number generating seed function.
4003 Values include srand48, srandom, and srand.
4005 selectminbits (selectminbits.U):
4006 This variable holds the minimum number of bits operated by select.
4007 That is, if you do select(n, ...), how many bits at least will be
4008 cleared in the masks if some activity is detected. Usually this
4009 is either n or 32*ceil(n/32), especially many little-endians do
4010 the latter. This is only useful if you have select(), naturally.
4012 selecttype (selecttype.U):
4013 This variable holds the type used for the 2nd, 3rd, and 4th
4014 arguments to select. Usually, this is 'fd_set *', if HAS_FD_SET
4015 is defined, and 'int *' otherwise. This is only useful if you
4016 have select(), naturally.
4019 This variable is defined but not used by Configure.
4020 The value is a plain '' and is not useful.
4022 setgrent_r_proto (d_setgrent_r.U):
4023 This variable encodes the prototype of setgrent_r.
4024 It is zero if d_setgrent_r is undef, and one of the
4025 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setgrent_r
4028 sethostent_r_proto (d_sethostent_r.U):
4029 This variable encodes the prototype of sethostent_r.
4030 It is zero if d_sethostent_r is undef, and one of the
4031 REENTRANT_PROTO_T_ABC macros of reentr.h if d_sethostent_r
4034 setlocale_r_proto (d_setlocale_r.U):
4035 This variable encodes the prototype of setlocale_r.
4036 It is zero if d_setlocale_r is undef, and one of the
4037 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setlocale_r
4040 setnetent_r_proto (d_setnetent_r.U):
4041 This variable encodes the prototype of setnetent_r.
4042 It is zero if d_setnetent_r is undef, and one of the
4043 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setnetent_r
4046 setprotoent_r_proto (d_setprotoent_r.U):
4047 This variable encodes the prototype of setprotoent_r.
4048 It is zero if d_setprotoent_r is undef, and one of the
4049 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setprotoent_r
4052 setpwent_r_proto (d_setpwent_r.U):
4053 This variable encodes the prototype of setpwent_r.
4054 It is zero if d_setpwent_r is undef, and one of the
4055 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setpwent_r
4058 setservent_r_proto (d_setservent_r.U):
4059 This variable encodes the prototype of setservent_r.
4060 It is zero if d_setservent_r is undef, and one of the
4061 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setservent_r
4065 This variable contains the full pathname of the shell used
4066 on this system to execute Bourne shell scripts. Usually, this will be
4067 /bin/sh, though it's possible that some systems will have /bin/ksh,
4068 /bin/pdksh, /bin/ash, /bin/bash, or even something such as
4070 This unit comes before Options.U, so you can't set sh with a '-D'
4071 option, though you can override this (and startsh)
4072 with '-O -Dsh=/bin/whatever -Dstartsh=whatever'
4075 This variable is defined but not used by Configure.
4076 The value is a plain '' and is not useful.
4078 sharpbang (spitshell.U):
4079 This variable contains the string #! if this system supports that
4082 shmattype (d_shmat.U):
4083 This symbol contains the type of pointer returned by shmat().
4084 It can be 'void *' or 'char *'.
4086 shortsize (intsize.U):
4087 This variable contains the value of the SHORTSIZE symbol which
4088 indicates to the C program how many bytes there are in a short.
4090 shrpenv (libperl.U):
4091 If the user builds a shared libperl.so, then we need to tell the
4092 'perl' executable where it will be able to find the installed libperl.so.
4093 One way to do this on some systems is to set the environment variable
4094 LD_RUN_PATH to the directory that will be the final location of the
4095 shared libperl.so. The makefile can use this with something like
4096 $shrpenv $(CC) -o perl perlmain.o $libperl $libs
4098 shrpenv="env LD_RUN_PATH=$archlibexp/CORE"
4101 See the main perl Makefile.SH for actual working usage.
4102 Alternatively, we might be able to use a command line option such
4103 as -R $archlibexp/CORE (Solaris) or -Wl,-rpath
4104 $archlibexp/CORE (Linux).
4106 shsharp (spitshell.U):
4107 This variable tells further Configure units whether your sh can
4110 sig_count (sig_name.U):
4111 This variable holds a number larger than the largest valid
4112 signal number. This is usually the same as the NSIG macro.
4114 sig_name (sig_name.U):
4115 This variable holds the signal names, space separated. The leading
4116 SIG in signal name is removed. A ZERO is prepended to the list.
4117 This is currently not used, sig_name_init is used instead.
4119 sig_name_init (sig_name.U):
4120 This variable holds the signal names, enclosed in double quotes and
4121 separated by commas, suitable for use in the SIG_NAME definition
4122 below. A "ZERO" is prepended to the list, and the list is
4123 terminated with a plain 0. The leading SIG in signal names
4124 is removed. See sig_num.
4126 sig_num (sig_name.U):
4127 This variable holds the signal numbers, space separated. A ZERO is
4128 prepended to the list (corresponding to the fake SIGZERO).
4129 Those numbers correspond to the value of the signal listed
4130 in the same place within the sig_name list.
4131 This is currently not used, sig_num_init is used instead.
4133 sig_num_init (sig_name.U):
4134 This variable holds the signal numbers, enclosed in double quotes and
4135 separated by commas, suitable for use in the SIG_NUM definition
4136 below. A "ZERO" is prepended to the list, and the list is
4137 terminated with a plain 0.
4139 sig_size (sig_name.U):
4140 This variable contains the number of elements of the sig_name
4143 signal_t (d_voidsig.U):
4144 This variable holds the type of the signal handler (void or int).
4146 sitearch (sitearch.U):
4147 This variable contains the eventual value of the SITEARCH symbol,
4148 which is the name of the private library for this package. It may
4149 have a ~ on the front. It is up to the makefile to eventually create
4150 this directory while performing installation (with ~ substitution).
4151 The standard distribution will put nothing in this directory.
4152 After perl has been installed, users may install their own local
4153 architecture-dependent modules in this directory with
4154 MakeMaker Makefile.PL
4155 or equivalent. See INSTALL for details.
4157 sitearchexp (sitearch.U):
4158 This variable is the ~name expanded version of sitearch, so that you
4159 may use it directly in Makefiles or shell scripts.
4161 sitebin (sitebin.U):
4162 This variable holds the name of the directory in which the user wants
4163 to put add-on publicly executable files for the package in question. It
4164 is most often a local directory such as /usr/local/bin. Programs using
4165 this variable must be prepared to deal with ~name substitution.
4166 The standard distribution will put nothing in this directory.
4167 After perl has been installed, users may install their own local
4168 executables in this directory with
4169 MakeMaker Makefile.PL
4170 or equivalent. See INSTALL for details.
4172 sitebinexp (sitebin.U):
4173 This is the same as the sitebin variable, but is filename expanded at
4174 configuration time, for use in your makefiles.
4176 sitehtml1dir (sitehtml1dir.U):
4177 This variable contains the name of the directory in which site-specific
4178 html source pages are to be put. It is the responsibility of the
4179 Makefile.SH to get the value of this into the proper command.
4180 You must be prepared to do the ~name expansion yourself.
4181 The standard distribution will put nothing in this directory.
4182 After perl has been installed, users may install their own local
4183 html pages in this directory with
4184 MakeMaker Makefile.PL
4185 or equivalent. See INSTALL for details.
4187 sitehtml1direxp (sitehtml1dir.U):
4188 This variable is the same as the sitehtml1dir variable, but is filename
4189 expanded at configuration time, for convenient use in makefiles.
4191 sitehtml3dir (sitehtml3dir.U):
4192 This variable contains the name of the directory in which site-specific
4193 library html source pages are to be put. It is the responsibility of the
4194 Makefile.SH to get the value of this into the proper command.
4195 You must be prepared to do the ~name expansion yourself.
4196 The standard distribution will put nothing in this directory.
4197 After perl has been installed, users may install their own local
4198 library html pages in this directory with
4199 MakeMaker Makefile.PL
4200 or equivalent. See INSTALL for details.
4202 sitehtml3direxp (sitehtml3dir.U):
4203 This variable is the same as the sitehtml3dir variable, but is filename
4204 expanded at configuration time, for convenient use in makefiles.
4206 sitelib (sitelib.U):
4207 This variable contains the eventual value of the SITELIB symbol,
4208 which is the name of the private library for this package. It may
4209 have a ~ on the front. It is up to the makefile to eventually create
4210 this directory while performing installation (with ~ substitution).
4211 The standard distribution will put nothing in this directory.
4212 After perl has been installed, users may install their own local
4213 architecture-independent modules in this directory with
4214 MakeMaker Makefile.PL
4215 or equivalent. See INSTALL for details.
4217 sitelib_stem (sitelib.U):
4218 This variable is $sitelibexp with any trailing version-specific component
4219 removed. The elements in inc_version_list (inc_version_list.U) can
4220 be tacked onto this variable to generate a list of directories to search.
4222 sitelibexp (sitelib.U):
4223 This variable is the ~name expanded version of sitelib, so that you
4224 may use it directly in Makefiles or shell scripts.
4226 siteman1dir (siteman1dir.U):
4227 This variable contains the name of the directory in which site-specific
4228 manual source pages are to be put. It is the responsibility of the
4229 Makefile.SH to get the value of this into the proper command.
4230 You must be prepared to do the ~name expansion yourself.
4231 The standard distribution will put nothing in this directory.
4232 After perl has been installed, users may install their own local
4233 man1 pages in this directory with
4234 MakeMaker Makefile.PL
4235 or equivalent. See INSTALL for details.
4237 siteman1direxp (siteman1dir.U):
4238 This variable is the same as the siteman1dir variable, but is filename
4239 expanded at configuration time, for convenient use in makefiles.
4241 siteman3dir (siteman3dir.U):
4242 This variable contains the name of the directory in which site-specific
4243 library man source pages are to be put. It is the responsibility of the
4244 Makefile.SH to get the value of this into the proper command.
4245 You must be prepared to do the ~name expansion yourself.
4246 The standard distribution will put nothing in this directory.
4247 After perl has been installed, users may install their own local
4248 man3 pages in this directory with
4249 MakeMaker Makefile.PL
4250 or equivalent. See INSTALL for details.
4252 siteman3direxp (siteman3dir.U):
4253 This variable is the same as the siteman3dir variable, but is filename
4254 expanded at configuration time, for convenient use in makefiles.
4256 siteprefix (siteprefix.U):
4257 This variable holds the full absolute path of the directory below
4258 which the user will install add-on packages.
4259 See INSTALL for usage and examples.
4261 siteprefixexp (siteprefix.U):
4262 This variable holds the full absolute path of the directory below
4263 which the user will install add-on packages. Derived from siteprefix.
4265 sitescript (sitescript.U):
4266 This variable holds the name of the directory in which the user wants
4267 to put add-on publicly executable files for the package in question. It
4268 is most often a local directory such as /usr/local/bin. Programs using
4269 this variable must be prepared to deal with ~name substitution.
4270 The standard distribution will put nothing in this directory.
4271 After perl has been installed, users may install their own local
4272 scripts in this directory with
4273 MakeMaker Makefile.PL
4274 or equivalent. See INSTALL for details.
4276 sitescriptexp (sitescript.U):
4277 This is the same as the sitescript variable, but is filename expanded at
4278 configuration time, for use in your makefiles.
4280 sizesize (sizesize.U):
4281 This variable contains the size of a sizetype in bytes.
4283 sizetype (sizetype.U):
4284 This variable defines sizetype to be something like size_t,
4285 unsigned long, or whatever type is used to declare length
4286 parameters for string functions.
4289 This variable is defined but not used by Configure.
4290 The value is a plain '' and is not useful.
4293 This variable is defined but not used by Configure.
4294 The value is a plain '' and is not useful.
4297 This variable holds the extension used to identify shared libraries
4298 (also known as shared objects) on the system. Usually set to 'so'.
4300 sockethdr (d_socket.U):
4301 This variable has any cpp '-I' flags needed for socket support.
4303 socketlib (d_socket.U):
4304 This variable has the names of any libraries needed for socket support.
4306 socksizetype (socksizetype.U):
4307 This variable holds the type used for the size argument
4308 for various socket calls like accept. Usual values include
4309 socklen_t, size_t, and int.
4312 This variable is used internally by Configure to determine the
4313 full pathname (if any) of the sort program. After Configure runs,
4314 the value is reset to a plain "sort" and is not useful.
4316 spackage (package.U):
4317 This variable contains the name of the package being constructed,
4318 with the first letter uppercased, i.e. suitable for starting
4321 spitshell (spitshell.U):
4322 This variable contains the command necessary to spit out a runnable
4323 shell on this system. It is either cat or a grep '-v' for # comments.
4325 sPRId64 (quadfio.U):
4326 This variable, if defined, contains the string used by stdio to
4327 format 64-bit decimal numbers (format 'd') for output.
4329 sPRIeldbl (longdblfio.U):
4330 This variable, if defined, contains the string used by stdio to
4331 format long doubles (format 'e') for output.
4333 sPRIEUldbl (longdblfio.U):
4334 This variable, if defined, contains the string used by stdio to
4335 format long doubles (format 'E') for output.
4336 The 'U' in the name is to separate this from sPRIeldbl so that even
4337 case-blind systems can see the difference.
4339 sPRIfldbl (longdblfio.U):
4340 This variable, if defined, contains the string used by stdio to
4341 format long doubles (format 'f') for output.
4343 sPRIFUldbl (longdblfio.U):
4344 This variable, if defined, contains the string used by stdio to
4345 format long doubles (format 'F') for output.
4346 The 'U' in the name is to separate this from sPRIfldbl so that even
4347 case-blind systems can see the difference.
4349 sPRIgldbl (longdblfio.U):
4350 This variable, if defined, contains the string used by stdio to
4351 format long doubles (format 'g') for output.
4353 sPRIGUldbl (longdblfio.U):
4354 This variable, if defined, contains the string used by stdio to
4355 format long doubles (format 'G') for output.
4356 The 'U' in the name is to separate this from sPRIgldbl so that even
4357 case-blind systems can see the difference.
4359 sPRIi64 (quadfio.U):
4360 This variable, if defined, contains the string used by stdio to
4361 format 64-bit decimal numbers (format 'i') for output.
4363 sPRIo64 (quadfio.U):
4364 This variable, if defined, contains the string used by stdio to
4365 format 64-bit octal numbers (format 'o') for output.
4367 sPRIu64 (quadfio.U):
4368 This variable, if defined, contains the string used by stdio to
4369 format 64-bit unsigned decimal numbers (format 'u') for output.
4371 sPRIx64 (quadfio.U):
4372 This variable, if defined, contains the string used by stdio to
4373 format 64-bit hexadecimal numbers (format 'x') for output.
4375 sPRIXU64 (quadfio.U):
4376 This variable, if defined, contains the string used by stdio to
4377 format 64-bit hExADECimAl numbers (format 'X') for output.
4378 The 'U' in the name is to separate this from sPRIx64 so that even
4379 case-blind systems can see the difference.
4381 srand48_r_proto (d_srand48_r.U):
4382 This variable encodes the prototype of srand48_r.
4383 It is zero if d_srand48_r is undef, and one of the
4384 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srand48_r
4387 srandom_r_proto (d_srandom_r.U):
4388 This variable encodes the prototype of srandom_r.
4389 It is zero if d_srandom_r is undef, and one of the
4390 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srandom_r
4394 This variable holds the path to the package source. It is up to
4395 the Makefile to use this variable and set VPATH accordingly to
4396 find the sources remotely.
4398 sSCNfldbl (longdblfio.U):
4399 This variable, if defined, contains the string used by stdio to
4400 format long doubles (format 'f') for input.
4402 ssizetype (ssizetype.U):
4403 This variable defines ssizetype to be something like ssize_t,
4404 long or int. It is used by functions that return a count
4405 of bytes or an error condition. It must be a signed type.
4406 We will pick a type such that sizeof(SSize_t) == sizeof(Size_t).
4408 startperl (startperl.U):
4409 This variable contains the string to put on the front of a perl
4410 script to make sure (hopefully) that it runs with perl and not some
4411 shell. Of course, that leading line must be followed by the classical
4413 eval 'exec perl -S $0 ${1+"$@"}'
4414 if $running_under_some_shell;
4415 to guarantee perl startup should the shell execute the script. Note
4416 that this magic incatation is not understood by csh.
4418 startsh (startsh.U):
4419 This variable contains the string to put on the front of a shell
4420 script to make sure (hopefully) that it runs with sh and not some
4423 static_ext (Extensions.U):
4424 This variable holds a list of XS extension files we want to
4425 link statically into the package. It is used by Makefile.
4427 stdchar (stdchar.U):
4428 This variable conditionally defines STDCHAR to be the type of char
4429 used in stdio.h. It has the values "unsigned char" or "char".
4431 stdio_base (d_stdstdio.U):
4432 This variable defines how, given a FILE pointer, fp, to access the
4433 _base field (or equivalent) of stdio.h's FILE structure. This will
4434 be used to define the macro FILE_base(fp).
4436 stdio_bufsiz (d_stdstdio.U):
4437 This variable defines how, given a FILE pointer, fp, to determine
4438 the number of bytes store in the I/O buffer pointer to by the
4439 _base field (or equivalent) of stdio.h's FILE structure. This will
4440 be used to define the macro FILE_bufsiz(fp).
4442 stdio_cnt (d_stdstdio.U):
4443 This variable defines how, given a FILE pointer, fp, to access the
4444 _cnt field (or equivalent) of stdio.h's FILE structure. This will
4445 be used to define the macro FILE_cnt(fp).
4447 stdio_filbuf (d_stdstdio.U):
4448 This variable defines how, given a FILE pointer, fp, to tell
4449 stdio to refill its internal buffers (?). This will
4450 be used to define the macro FILE_filbuf(fp).
4452 stdio_ptr (d_stdstdio.U):
4453 This variable defines how, given a FILE pointer, fp, to access the
4454 _ptr field (or equivalent) of stdio.h's FILE structure. This will
4455 be used to define the macro FILE_ptr(fp).
4457 stdio_stream_array (stdio_streams.U):
4458 This variable tells the name of the array holding the stdio streams.
4459 Usual values include _iob, __iob, and __sF.
4461 strerror_r_proto (d_strerror_r.U):
4462 This variable encodes the prototype of strerror_r.
4463 It is zero if d_strerror_r is undef, and one of the
4464 REENTRANT_PROTO_T_ABC macros of reentr.h if d_strerror_r
4467 strings (i_string.U):
4468 This variable holds the full path of the string header that will be
4469 used. Typically /usr/include/string.h or /usr/include/strings.h.
4472 This variable is defined but not used by Configure.
4473 The value is a plain '' and is not useful.
4475 subversion (patchlevel.U):
4476 The subversion level of this package.
4477 The value of subversion comes from the patchlevel.h file.
4478 In a version number such as 5.6.1, this is the "1".
4479 In patchlevel.h, this is referred to as "PERL_SUBVERSION".
4480 This is unique to perl.
4483 This variable holds the place where the manual is located on this
4484 system. It is not the place where the user wants to put his manual
4485 pages. Rather it is the place where Configure may look to find manual
4486 for unix commands (section 1 of the manual usually). See mansrc.
4489 This variable is defined but not used by Configure.
4490 The value is a plain '' and is not useful.
4493 This variable is defined but not used by Configure.
4494 The value is a plain '' and is not useful.
4496 targetarch (Cross.U):
4497 If cross-compiling, this variable contains the target architecture.
4498 If not, this will be empty.
4501 This variable is defined but not used by Configure.
4502 The value is a plain '' and is not useful.
4505 This variable is defined but not used by Configure.
4506 The value is a plain '' and is not useful.
4509 This variable is used internally by Configure to determine the
4510 full pathname (if any) of the test program. After Configure runs,
4511 the value is reset to a plain "test" and is not useful.
4513 timeincl (i_time.U):
4514 This variable holds the full path of the included time header(s).
4516 timetype (d_time.U):
4517 This variable holds the type returned by time(). It can be long,
4518 or time_t on BSD sites (in which case <sys/types.h> should be
4519 included). Anyway, the type Time_t should be used.
4521 tmpnam_r_proto (d_tmpnam_r.U):
4522 This variable encodes the prototype of tmpnam_r.
4523 It is zero if d_tmpnam_r is undef, and one of the
4524 REENTRANT_PROTO_T_ABC macros of reentr.h if d_tmpnam_r
4528 This variable contains the command used by Configure
4529 to copy to from the target host. Useful and available
4530 only during Perl build.
4531 The string ':' if not cross-compiling.
4534 This variable is used internally by Configure to determine the
4535 full pathname (if any) of the touch program. After Configure runs,
4536 the value is reset to a plain "touch" and is not useful.
4539 This variable is used internally by Configure to determine the
4540 full pathname (if any) of the tr program. After Configure runs,
4541 the value is reset to a plain "tr" and is not useful.
4544 This variable contains the value to be passed to the tr(1)
4545 command to transliterate a newline. Typical values are
4546 '\012' and '\n'. This is needed for EBCDIC systems where
4547 newline is not necessarily '\012'.
4550 This variable is defined but not used by Configure.
4551 The value is a plain '' and is not useful.
4553 ttyname_r_proto (d_ttyname_r.U):
4554 This variable encodes the prototype of ttyname_r.
4555 It is zero if d_ttyname_r is undef, and one of the
4556 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ttyname_r
4560 This variable is the size of an U16 in bytes.
4563 This variable contains the C type used for Perl's U16.
4566 This variable is the size of an U32 in bytes.
4569 This variable contains the C type used for Perl's U32.
4572 This variable is the size of an U64 in bytes.
4575 This variable contains the C type used for Perl's U64.
4578 This variable is the size of an U8 in bytes.
4581 This variable contains the C type used for Perl's U8.
4584 This variable contains the format string used for printing a Uid_t.
4586 uidsign (uidsign.U):
4587 This variable contains the signedness of a uidtype.
4588 1 for unsigned, -1 for signed.
4590 uidsize (uidsize.U):
4591 This variable contains the size of a uidtype in bytes.
4593 uidtype (uidtype.U):
4594 This variable defines Uid_t to be something like uid_t, int,
4595 ushort, or whatever type is used to declare user ids in the kernel.
4598 This variable is used internally by Configure to determine the
4599 full pathname (if any) of the uname program. After Configure runs,
4600 the value is reset to a plain "uname" and is not useful.
4603 This variable is used internally by Configure to determine the
4604 full pathname (if any) of the uniq program. After Configure runs,
4605 the value is reset to a plain "uniq" and is not useful.
4607 uquadtype (quadtype.U):
4608 This variable defines Uquad_t to be something like unsigned long,
4609 unsigned int, unsigned long long, uint64_t, or whatever type is
4610 used for 64-bit integers.
4612 use5005threads (usethreads.U):
4613 This variable conditionally defines the USE_5005THREADS symbol,
4614 and indicates that Perl should be built to use the 5.005-based
4615 threading implementation.
4617 use64bitall (use64bits.U):
4618 This variable conditionally defines the USE_64_BIT_ALL symbol,
4619 and indicates that 64-bit integer types should be used
4620 when available. The maximal possible
4621 64-bitness is employed: LP64 or ILP64, meaning that you will
4622 be able to use more than 2 gigabytes of memory. This mode is
4623 even more binary incompatible than USE_64_BIT_INT. You may not
4624 be able to run the resulting executable in a 32-bit CPU at all or
4625 you may need at least to reboot your OS to 64-bit mode.
4627 use64bitint (use64bits.U):
4628 This variable conditionally defines the USE_64_BIT_INT symbol,
4629 and indicates that 64-bit integer types should be used
4630 when available. The minimal possible 64-bitness
4631 is employed, just enough to get 64-bit integers into Perl.
4632 This may mean using for example "long longs", while your memory
4633 may still be limited to 2 gigabytes.
4635 usecrosscompile (Cross.U):
4636 This variable conditionally defines the USE_CROSS_COMPILE symbol,
4637 and indicates that Perl has been cross-compiled.
4640 This variable indicates if the system supports dynamic
4641 loading of some sort. See also dlsrc and dlobj.
4643 usefaststdio (usefaststdio.U):
4644 This variable conditionally defines the USE_FAST_STDIO symbol,
4645 and indicates that Perl should be built to use 'fast stdio'.
4646 Defaults to define in Perls 5.8 and earlier, to undef later.
4648 useithreads (usethreads.U):
4649 This variable conditionally defines the USE_ITHREADS symbol,
4650 and indicates that Perl should be built to use the interpreter-based
4651 threading implementation.
4653 uselargefiles (uselfs.U):
4654 This variable conditionally defines the USE_LARGE_FILES symbol,
4655 and indicates that large file interfaces should be used when
4658 uselongdouble (uselongdbl.U):
4659 This variable conditionally defines the USE_LONG_DOUBLE symbol,
4660 and indicates that long doubles should be used when available.
4662 usemallocwrap (mallocsrc.U):
4663 This variable contains y if we are wrapping malloc to prevent
4664 integer overflow during size calculations.
4666 usemorebits (usemorebits.U):
4667 This variable conditionally defines the USE_MORE_BITS symbol,
4668 and indicates that explicit 64-bit interfaces and long doubles
4669 should be used when available.
4671 usemultiplicity (usemultiplicity.U):
4672 This variable conditionally defines the MULTIPLICITY symbol,
4673 and indicates that Perl should be built to use multiplicity.
4675 usemymalloc (mallocsrc.U):
4676 This variable contains y if the malloc that comes with this package
4677 is desired over the system's version of malloc. People often include
4678 special versions of malloc for effiency, but such versions are often
4679 less portable. See also mallocsrc and mallocobj.
4680 If this is 'y', then -lmalloc is removed from $libs.
4683 This variable contains 'true' or 'false' depending whether the
4684 nm extraction is wanted or not.
4686 useopcode (Extensions.U):
4687 This variable holds either 'true' or 'false' to indicate
4688 whether the Opcode extension should be used. The sole
4689 use for this currently is to allow an easy mechanism
4690 for users to skip the Opcode extension from the Configure
4693 useperlio (useperlio.U):
4694 This variable conditionally defines the USE_PERLIO symbol,
4695 and indicates that the PerlIO abstraction should be
4698 useposix (Extensions.U):
4699 This variable holds either 'true' or 'false' to indicate
4700 whether the POSIX extension should be used. The sole
4701 use for this currently is to allow an easy mechanism
4702 for hints files to indicate that POSIX will not compile
4703 on a particular system.
4705 usereentrant (usethreads.U):
4706 This variable conditionally defines the USE_REENTRANT_API symbol,
4707 which indicates that the thread code may try to use the various
4708 _r versions of library functions. This is only potentially
4709 meaningful if usethreads is set and is very experimental, it is
4710 not even prompted for.
4712 userelocatableinc (XXX.U):
4713 This variable is set to true to indicate that perl should relocate
4714 @INC entries at runtime based on the path to the perl binary.
4715 Any @INC paths starting ".../" are relocated relative to the directory
4716 containing the perl binary, and a logical cleanup of the path is then
4717 made around the join point (removing "dir/../" pairs)
4720 This variable is set to true when the user agrees to use sfio.
4721 It is set to false when sfio is not available or when the user
4722 explicitely requests not to use sfio. It is here primarily so
4723 that command-line settings can override the auto-detection of
4724 d_sfio without running into a "WHOA THERE".
4726 useshrplib (libperl.U):
4727 This variable is set to 'true' if the user wishes
4728 to build a shared libperl, and 'false' otherwise.
4730 usesocks (usesocks.U):
4731 This variable conditionally defines the USE_SOCKS symbol,
4732 and indicates that Perl should be built to use SOCKS.
4734 usethreads (usethreads.U):
4735 This variable conditionally defines the USE_THREADS symbol,
4736 and indicates that Perl should be built to use threads.
4738 usevendorprefix (vendorprefix.U):
4739 This variable tells whether the vendorprefix
4740 and consequently other vendor* paths are in use.
4742 usevfork (d_vfork.U):
4743 This variable is set to true when the user accepts to use vfork.
4744 It is set to false when no vfork is available or when the user
4745 explicitely requests not to use vfork.
4748 This variable holds the path of the include files, which is
4749 usually /usr/include. It is mainly used by other Configure units.
4752 This variable is defined but not used by Configure.
4753 The value is a plain '' and is not useful.
4755 uvoformat (perlxvf.U):
4756 This variable contains the format string used for printing
4757 a Perl UV as an unsigned octal integer.
4760 This variable is the size of a UV in bytes.
4763 This variable contains the C type used for Perl's UV.
4765 uvuformat (perlxvf.U):
4766 This variable contains the format string used for printing
4767 a Perl UV as an unsigned decimal integer.
4769 uvxformat (perlxvf.U):
4770 This variable contains the format string used for printing
4771 a Perl UV as an unsigned hexadecimal integer in lowercase abcdef.
4773 uvXUformat (perlxvf.U):
4774 This variable contains the format string used for printing
4775 a Perl UV as an unsigned hexadecimal integer in uppercase ABCDEF.
4777 vendorarch (vendorarch.U):
4778 This variable contains the value of the PERL_VENDORARCH symbol.
4779 It may have a ~ on the front.
4780 The standard distribution will put nothing in this directory.
4781 Vendors who distribute perl may wish to place their own
4782 architecture-dependent modules and extensions in this directory with
4783 MakeMaker Makefile.PL INSTALLDIRS=vendor
4784 or equivalent. See INSTALL for details.
4786 vendorarchexp (vendorarch.U):
4787 This variable is the ~name expanded version of vendorarch, so that you
4788 may use it directly in Makefiles or shell scripts.
4790 vendorbin (vendorbin.U):
4791 This variable contains the eventual value of the VENDORBIN symbol.
4792 It may have a ~ on the front.
4793 The standard distribution will put nothing in this directory.
4794 Vendors who distribute perl may wish to place additional
4795 binaries in this directory with
4796 MakeMaker Makefile.PL INSTALLDIRS=vendor
4797 or equivalent. See INSTALL for details.
4799 vendorbinexp (vendorbin.U):
4800 This variable is the ~name expanded version of vendorbin, so that you
4801 may use it directly in Makefiles or shell scripts.
4803 vendorhtml1dir (vendorhtml1dir.U):
4804 This variable contains the name of the directory for html
4805 pages. It may have a ~ on the front.
4806 The standard distribution will put nothing in this directory.
4807 Vendors who distribute perl may wish to place their own
4808 html pages in this directory with
4809 MakeMaker Makefile.PL INSTALLDIRS=vendor
4810 or equivalent. See INSTALL for details.
4812 vendorhtml1direxp (vendorhtml1dir.U):
4813 This variable is the ~name expanded version of vendorhtml1dir, so that you
4814 may use it directly in Makefiles or shell scripts.
4816 vendorhtml3dir (vendorhtml3dir.U):
4817 This variable contains the name of the directory for html
4818 library pages. It may have a ~ on the front.
4819 The standard distribution will put nothing in this directory.
4820 Vendors who distribute perl may wish to place their own
4821 html pages for modules and extensions in this directory with
4822 MakeMaker Makefile.PL INSTALLDIRS=vendor
4823 or equivalent. See INSTALL for details.
4825 vendorhtml3direxp (vendorhtml3dir.U):
4826 This variable is the ~name expanded version of vendorhtml3dir, so that you
4827 may use it directly in Makefiles or shell scripts.
4829 vendorlib (vendorlib.U):
4830 This variable contains the eventual value of the VENDORLIB symbol,
4831 which is the name of the private library for this package.
4832 The standard distribution will put nothing in this directory.
4833 Vendors who distribute perl may wish to place their own
4834 modules in this directory with
4835 MakeMaker Makefile.PL INSTALLDIRS=vendor
4836 or equivalent. See INSTALL for details.
4838 vendorlib_stem (vendorlib.U):
4839 This variable is $vendorlibexp with any trailing version-specific component
4840 removed. The elements in inc_version_list (inc_version_list.U) can
4841 be tacked onto this variable to generate a list of directories to search.
4843 vendorlibexp (vendorlib.U):
4844 This variable is the ~name expanded version of vendorlib, so that you
4845 may use it directly in Makefiles or shell scripts.
4847 vendorman1dir (vendorman1dir.U):
4848 This variable contains the name of the directory for man1
4849 pages. It may have a ~ on the front.
4850 The standard distribution will put nothing in this directory.
4851 Vendors who distribute perl may wish to place their own
4852 man1 pages in this directory with
4853 MakeMaker Makefile.PL INSTALLDIRS=vendor
4854 or equivalent. See INSTALL for details.
4856 vendorman1direxp (vendorman1dir.U):
4857 This variable is the ~name expanded version of vendorman1dir, so that you
4858 may use it directly in Makefiles or shell scripts.
4860 vendorman3dir (vendorman3dir.U):
4861 This variable contains the name of the directory for man3
4862 pages. It may have a ~ on the front.
4863 The standard distribution will put nothing in this directory.
4864 Vendors who distribute perl may wish to place their own
4865 man3 pages in this directory with
4866 MakeMaker Makefile.PL INSTALLDIRS=vendor
4867 or equivalent. See INSTALL for details.
4869 vendorman3direxp (vendorman3dir.U):
4870 This variable is the ~name expanded version of vendorman3dir, so that you
4871 may use it directly in Makefiles or shell scripts.
4873 vendorprefix (vendorprefix.U):
4874 This variable holds the full absolute path of the directory below
4875 which the vendor will install add-on packages.
4876 See INSTALL for usage and examples.
4878 vendorprefixexp (vendorprefix.U):
4879 This variable holds the full absolute path of the directory below
4880 which the vendor will install add-on packages. Derived from vendorprefix.
4882 vendorscript (vendorscript.U):
4883 This variable contains the eventual value of the VENDORSCRIPT symbol.
4884 It may have a ~ on the front.
4885 The standard distribution will put nothing in this directory.
4886 Vendors who distribute perl may wish to place additional
4887 executable scripts in this directory with
4888 MakeMaker Makefile.PL INSTALLDIRS=vendor
4889 or equivalent. See INSTALL for details.
4891 vendorscriptexp (vendorscript.U):
4892 This variable is the ~name expanded version of vendorscript, so that you
4893 may use it directly in Makefiles or shell scripts.
4895 version (patchlevel.U):
4896 The full version number of this package, such as 5.6.1 (or 5_6_1).
4897 This combines revision, patchlevel, and subversion to get the
4898 full version number, including any possible subversions.
4899 This is suitable for use as a directory name, and hence is
4900 filesystem dependent.
4902 version_patchlevel_string (patchlevel.U):
4903 This is a string combining version, subversion and
4904 perl_patchlevel (if perl_patchlevel is non-zero).
4905 It is typically something like
4906 'version 7 subversion 1' or
4907 'version 7 subversion 1 patchlevel 11224'
4908 It is computed here to avoid duplication of code in myconfig.SH
4911 versiononly (versiononly.U):
4912 If set, this symbol indicates that only the version-specific
4913 components of a perl installation should be installed.
4914 This may be useful for making a test installation of a new
4915 version without disturbing the existing installation.
4916 Setting versiononly is equivalent to setting installperl's -v option.
4917 In particular, the non-versioned scripts and programs such as
4918 a2p, c2ph, h2xs, pod2*, and perldoc are not installed
4919 (see INSTALL for a more complete list). Nor are the man
4921 Usually, this is undef.
4924 This variable is defined but not used by Configure.
4925 The value is a plain '' and is not useful.
4927 voidflags (voidflags.U):
4928 This variable contains the eventual value of the VOIDFLAGS symbol,
4929 which indicates how much support of the void type is given by this
4930 compiler. See VOIDFLAGS for more info.
4933 This variable holds extra path (space-separated) used to find
4934 libraries on this platform, for example CPU-specific libraries
4935 (on multi-CPU platforms) may be listed here.
4938 This variable holds the name of the compiler compiler we
4939 want to use in the Makefile. It can be yacc, byacc, or bison -y.
4942 This variable contains any additional yacc flags desired by the
4943 user. It is up to the Makefile to use this.
4946 This variable is defined but not used by Configure.
4947 The value is a plain '' and is not useful.
4950 This variable is used internally by Configure to determine the
4951 full pathname (if any) of the zip program. After Configure runs,
4952 the value is reset to a plain "zip" and is not useful.