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_attribut (d_attribut.U):
410 This variable conditionally defines HASATTRIBUTE, which
411 indicates the C compiler can check for function attributes,
412 such as printf formats.
415 This variable conditionally defines the HAS_BCMP symbol if
416 the bcmp() routine is available to compare strings.
419 This variable conditionally defines the HAS_BCOPY symbol if
420 the bcopy() routine is available to copy strings.
423 This symbol conditionally defines the symbol BSD when running on a
426 d_bsdgetpgrp (d_getpgrp.U):
427 This variable conditionally defines USE_BSD_GETPGRP if
428 getpgrp needs one arguments whereas USG one needs none.
430 d_bsdsetpgrp (d_setpgrp.U):
431 This variable conditionally defines USE_BSD_SETPGRP if
432 setpgrp needs two arguments whereas USG one needs none.
433 See also d_setpgid for a POSIX interface.
436 This variable conditionally defines the HAS_BZERO symbol if
437 the bzero() routine is available to set memory to 0.
439 d_casti32 (d_casti32.U):
440 This variable conditionally defines CASTI32, which indicates
441 whether the C compiler can cast large floats to 32-bit ints.
443 d_castneg (d_castneg.U):
444 This variable conditionally defines CASTNEG, which indicates
445 wether the C compiler can cast negative float to unsigned.
447 d_charvspr (d_vprintf.U):
448 This variable conditionally defines CHARVSPRINTF if this system
449 has vsprintf returning type (char*). The trend seems to be to
450 declare it as "int vsprintf()".
453 This variable conditionally defines the HAS_CHOWN symbol, which
454 indicates to the C program that the chown() routine is available.
456 d_chroot (d_chroot.U):
457 This variable conditionally defines the HAS_CHROOT symbol, which
458 indicates to the C program that the chroot() routine is available.
460 d_chsize (d_chsize.U):
461 This variable conditionally defines the CHSIZE symbol, which
462 indicates to the C program that the chsize() routine is available
463 to truncate files. You might need a -lx to get this routine.
466 This variable conditionally defines the HAS_CLASS symbol, which
467 indicates to the C program that the class() routine is available.
469 d_closedir (d_closedir.U):
470 This variable conditionally defines HAS_CLOSEDIR if closedir() is
473 d_cmsghdr_s (d_cmsghdr_s.U):
474 This variable conditionally defines the HAS_STRUCT_CMSGHDR symbol,
475 which indicates that the struct cmsghdr is supported.
478 This variable conditionally defines the HASCONST symbol, which
479 indicates to the C program that this C compiler knows about the
482 d_copysignl (d_copysignl.U):
483 This variable conditionally defines the HAS_COPYSIGNL symbol, which
484 indicates to the C program that the copysignl() routine is available.
485 If aintl is also present we can emulate modfl.
488 This variable conditionally defines the CRYPT symbol, which
489 indicates to the C program that the crypt() routine is available
490 to encrypt passwords and the like.
492 d_crypt_r (d_crypt_r.U):
493 This variable conditionally defines the HAS_CRYPT_R symbol,
494 which indicates to the C program that the crypt_r()
495 routine is available.
498 This variable conditionally defines the CSH symbol, which
499 indicates to the C program that the C-shell exists.
501 d_ctermid_r (d_ctermid_r.U):
502 This variable conditionally defines the HAS_CTERMID_R symbol,
503 which indicates to the C program that the ctermid_r()
504 routine is available.
506 d_ctime_r (d_ctime_r.U):
507 This variable conditionally defines the HAS_CTIME_R symbol,
508 which indicates to the C program that the ctime_r()
509 routine is available.
511 d_cuserid (d_cuserid.U):
512 This variable conditionally defines the HAS_CUSERID symbol, which
513 indicates to the C program that the cuserid() routine is available
514 to get character login names.
516 d_dbl_dig (d_dbl_dig.U):
517 This variable conditionally defines d_dbl_dig if this system's
518 header files provide DBL_DIG, which is the number of significant
519 digits in a double precision number.
521 d_dbminitproto (d_dbminitproto.U):
522 This variable conditionally defines the HAS_DBMINIT_PROTO symbol,
523 which indicates to the C program that the system provides
524 a prototype for the dbminit() function. Otherwise, it is
525 up to the program to supply one.
527 d_difftime (d_difftime.U):
528 This variable conditionally defines the HAS_DIFFTIME symbol, which
529 indicates to the C program that the difftime() routine is available.
532 This variable conditionally defines the HAS_DIRFD constant,
533 which indicates to the C program that dirfd() is available
534 to return the file descriptor of a directory stream.
536 d_dirnamlen (i_dirent.U):
537 This variable conditionally defines DIRNAMLEN, which indicates
538 to the C program that the length of directory entry names is
539 provided by a d_namelen field.
541 d_dlerror (d_dlerror.U):
542 This variable conditionally defines the HAS_DLERROR symbol, which
543 indicates to the C program that the dlerror() routine is available.
545 d_dlopen (d_dlopen.U):
546 This variable conditionally defines the HAS_DLOPEN symbol, which
547 indicates to the C program that the dlopen() routine is available.
549 d_dlsymun (d_dlsymun.U):
550 This variable conditionally defines DLSYM_NEEDS_UNDERSCORE, which
551 indicates that we need to prepend an underscore to the symbol
552 name before calling dlsym().
554 d_dosuid (d_dosuid.U):
555 This variable conditionally defines the symbol DOSUID, which
556 tells the C program that it should insert setuid emulation code
557 on hosts which have setuid #! scripts disabled.
559 d_drand48_r (d_drand48_r.U):
560 This variable conditionally defines the HAS_DRAND48_R symbol,
561 which indicates to the C program that the drand48_r()
562 routine is available.
564 d_drand48proto (d_drand48proto.U):
565 This variable conditionally defines the HAS_DRAND48_PROTO symbol,
566 which indicates to the C program that the system provides
567 a prototype for the drand48() function. Otherwise, it is
568 up to the program to supply one.
571 This variable conditionally defines HAS_DUP2 if dup2() is
572 available to duplicate file descriptors.
574 d_eaccess (d_eaccess.U):
575 This variable conditionally defines the HAS_EACCESS symbol, which
576 indicates to the C program that the eaccess() routine is available.
578 d_endgrent (d_endgrent.U):
579 This variable conditionally defines the HAS_ENDGRENT symbol, which
580 indicates to the C program that the endgrent() routine is available
581 for sequential access of the group database.
583 d_endgrent_r (d_endgrent_r.U):
584 This variable conditionally defines the HAS_ENDGRENT_R symbol,
585 which indicates to the C program that the endgrent_r()
586 routine is available.
588 d_endhent (d_endhent.U):
589 This variable conditionally defines HAS_ENDHOSTENT if endhostent() is
590 available to close whatever was being used for host queries.
592 d_endhostent_r (d_endhostent_r.U):
593 This variable conditionally defines the HAS_ENDHOSTENT_R symbol,
594 which indicates to the C program that the endhostent_r()
595 routine is available.
597 d_endnent (d_endnent.U):
598 This variable conditionally defines HAS_ENDNETENT if endnetent() is
599 available to close whatever was being used for network queries.
601 d_endnetent_r (d_endnetent_r.U):
602 This variable conditionally defines the HAS_ENDNETENT_R symbol,
603 which indicates to the C program that the endnetent_r()
604 routine is available.
606 d_endpent (d_endpent.U):
607 This variable conditionally defines HAS_ENDPROTOENT if endprotoent() is
608 available to close whatever was being used for protocol queries.
610 d_endprotoent_r (d_endprotoent_r.U):
611 This variable conditionally defines the HAS_ENDPROTOENT_R symbol,
612 which indicates to the C program that the endprotoent_r()
613 routine is available.
615 d_endpwent (d_endpwent.U):
616 This variable conditionally defines the HAS_ENDPWENT symbol, which
617 indicates to the C program that the endpwent() routine is available
618 for sequential access of the passwd database.
620 d_endpwent_r (d_endpwent_r.U):
621 This variable conditionally defines the HAS_ENDPWENT_R symbol,
622 which indicates to the C program that the endpwent_r()
623 routine is available.
625 d_endsent (d_endsent.U):
626 This variable conditionally defines HAS_ENDSERVENT if endservent() is
627 available to close whatever was being used for service queries.
629 d_endservent_r (d_endservent_r.U):
630 This variable conditionally defines the HAS_ENDSERVENT_R symbol,
631 which indicates to the C program that the endservent_r()
632 routine is available.
634 d_eofnblk (nblock_io.U):
635 This variable conditionally defines EOF_NONBLOCK if EOF can be seen
636 when reading from a non-blocking I/O source.
639 This variable conditionally defines the symbols EUNICE and VAX, which
640 alerts the C program that it must deal with ideosyncracies of VMS.
642 d_faststdio (d_faststdio.U):
643 This variable conditionally defines the HAS_FAST_STDIO symbol,
644 which indicates to the C program that the "fast stdio" is available
645 to manipulate the stdio buffers directly.
647 d_fchdir (d_fchdir.U):
648 This variable conditionally defines the HAS_FCHDIR symbol, which
649 indicates to the C program that the fchdir() routine is available.
651 d_fchmod (d_fchmod.U):
652 This variable conditionally defines the HAS_FCHMOD symbol, which
653 indicates to the C program that the fchmod() routine is available
654 to change mode of opened files.
656 d_fchown (d_fchown.U):
657 This variable conditionally defines the HAS_FCHOWN symbol, which
658 indicates to the C program that the fchown() routine is available
659 to change ownership of opened files.
662 This variable conditionally defines the HAS_FCNTL symbol, and indicates
663 whether the fcntl() function exists
665 d_fcntl_can_lock (d_fcntl_can_lock.U):
666 This variable conditionally defines the FCNTL_CAN_LOCK symbol
667 and indicates whether file locking with fcntl() works.
669 d_fd_macros (d_fd_set.U):
670 This variable contains the eventual value of the HAS_FD_MACROS symbol,
671 which indicates if your C compiler knows about the macros which
672 manipulate an fd_set.
674 d_fd_set (d_fd_set.U):
675 This variable contains the eventual value of the HAS_FD_SET symbol,
676 which indicates if your C compiler knows about the fd_set typedef.
678 d_fds_bits (d_fd_set.U):
679 This variable contains the eventual value of the HAS_FDS_BITS symbol,
680 which indicates if your fd_set typedef contains the fds_bits member.
681 If you have an fd_set typedef, but the dweebs who installed it did
682 a half-fast job and neglected to provide the macros to manipulate
683 an fd_set, HAS_FDS_BITS will let us know how to fix the gaffe.
685 d_fgetpos (d_fgetpos.U):
686 This variable conditionally defines HAS_FGETPOS if fgetpos() is
687 available to get the file position indicator.
689 d_finite (d_finite.U):
690 This variable conditionally defines the HAS_FINITE symbol, which
691 indicates to the C program that the finite() routine is available.
693 d_finitel (d_finitel.U):
694 This variable conditionally defines the HAS_FINITEL symbol, which
695 indicates to the C program that the finitel() routine is available.
697 d_flexfnam (d_flexfnam.U):
698 This variable conditionally defines the FLEXFILENAMES symbol, which
699 indicates that the system supports filenames longer than 14 characters.
702 This variable conditionally defines HAS_FLOCK if flock() is
703 available to do file locking.
705 d_flockproto (d_flockproto.U):
706 This variable conditionally defines the HAS_FLOCK_PROTO symbol,
707 which indicates to the C program that the system provides
708 a prototype for the flock() function. Otherwise, it is
709 up to the program to supply one.
712 This variable conditionally defines the HAS_FORK symbol, which
713 indicates to the C program that the fork() routine is available.
715 d_fp_class (d_fp_class.U):
716 This variable conditionally defines the HAS_FP_CLASS symbol, which
717 indicates to the C program that the fp_class() routine is available.
719 d_fpathconf (d_pathconf.U):
720 This variable conditionally defines the HAS_FPATHCONF symbol, which
721 indicates to the C program that the pathconf() routine is available
722 to determine file-system related limits and options associated
723 with a given open file descriptor.
725 d_fpclass (d_fpclass.U):
726 This variable conditionally defines the HAS_FPCLASS symbol, which
727 indicates to the C program that the fpclass() routine is available.
729 d_fpclassify (d_fpclassify.U):
730 This variable conditionally defines the HAS_FPCLASSIFY symbol, which
731 indicates to the C program that the fpclassify() routine is available.
733 d_fpclassl (d_fpclassl.U):
734 This variable conditionally defines the HAS_FPCLASSL symbol, which
735 indicates to the C program that the fpclassl() routine is available.
737 d_fpos64_t (d_fpos64_t.U):
738 This symbol will be defined if the C compiler supports fpos64_t.
740 d_frexpl (d_frexpl.U):
741 This variable conditionally defines the HAS_FREXPL symbol, which
742 indicates to the C program that the frexpl() routine is available.
744 d_fs_data_s (d_fs_data_s.U):
745 This variable conditionally defines the HAS_STRUCT_FS_DATA symbol,
746 which indicates that the struct fs_data is supported.
748 d_fseeko (d_fseeko.U):
749 This variable conditionally defines the HAS_FSEEKO symbol, which
750 indicates to the C program that the fseeko() routine is available.
752 d_fsetpos (d_fsetpos.U):
753 This variable conditionally defines HAS_FSETPOS if fsetpos() is
754 available to set the file position indicator.
756 d_fstatfs (d_fstatfs.U):
757 This variable conditionally defines the HAS_FSTATFS symbol, which
758 indicates to the C program that the fstatfs() routine is available.
760 d_fstatvfs (d_statvfs.U):
761 This variable conditionally defines the HAS_FSTATVFS symbol, which
762 indicates to the C program that the fstatvfs() routine is available.
765 This variable conditionally defines the HAS_FSYNC symbol, which
766 indicates to the C program that the fsync() routine is available.
768 d_ftello (d_ftello.U):
769 This variable conditionally defines the HAS_FTELLO symbol, which
770 indicates to the C program that the ftello() routine is available.
773 This variable conditionally defines the HAS_FTIME symbol, which indicates
774 that the ftime() routine exists. The ftime() routine is basically
775 a sub-second accuracy clock.
777 d_Gconvert (d_gconvert.U):
778 This variable holds what Gconvert is defined as to convert
779 floating point numbers into strings. By default, Configure
780 sets this macro to use the first of gconvert, gcvt, or sprintf
781 that pass sprintf-%g-like behaviour tests. If perl is using
782 long doubles, the macro uses the first of the following
783 functions that pass Configure's tests: qgcvt, sprintf (if
784 Configure knows how to make sprintf format long doubles--see
785 sPRIgldbl), gconvert, gcvt, and sprintf (casting to double).
786 The gconvert_preference and gconvert_ld_preference variables
787 can be used to alter Configure's preferences, for doubles and
788 long doubles, respectively. If present, they contain a
789 space-separated list of one or more of the above function
790 names in the order they should be tried.
792 d_Gconvert may be set to override Configure with a platform-
793 specific function. If this function expects a double, a
794 different value may need to be set by the uselongdouble.cbu
795 call-back unit so that long doubles can be formatted without
798 d_getcwd (d_getcwd.U):
799 This variable conditionally defines the HAS_GETCWD symbol, which
800 indicates to the C program that the getcwd() routine is available
801 to get the current working directory.
803 d_getespwnam (d_getespwnam.U):
804 This variable conditionally defines HAS_GETESPWNAM if getespwnam() is
805 available to retrieve enchanced (shadow) password entries by name.
807 d_getfsstat (d_getfsstat.U):
808 This variable conditionally defines the HAS_GETFSSTAT symbol, which
809 indicates to the C program that the getfsstat() routine is available.
811 d_getgrent (d_getgrent.U):
812 This variable conditionally defines the HAS_GETGRENT symbol, which
813 indicates to the C program that the getgrent() routine is available
814 for sequential access of the group database.
816 d_getgrent_r (d_getgrent_r.U):
817 This variable conditionally defines the HAS_GETGRENT_R symbol,
818 which indicates to the C program that the getgrent_r()
819 routine is available.
821 d_getgrgid_r (d_getgrgid_r.U):
822 This variable conditionally defines the HAS_GETGRGID_R symbol,
823 which indicates to the C program that the getgrgid_r()
824 routine is available.
826 d_getgrnam_r (d_getgrnam_r.U):
827 This variable conditionally defines the HAS_GETGRNAM_R symbol,
828 which indicates to the C program that the getgrnam_r()
829 routine is available.
831 d_getgrps (d_getgrps.U):
832 This variable conditionally defines the HAS_GETGROUPS symbol, which
833 indicates to the C program that the getgroups() routine is available
834 to get the list of process groups.
836 d_gethbyaddr (d_gethbyad.U):
837 This variable conditionally defines the HAS_GETHOSTBYADDR symbol, which
838 indicates to the C program that the gethostbyaddr() routine is available
839 to look up hosts by their IP addresses.
841 d_gethbyname (d_gethbynm.U):
842 This variable conditionally defines the HAS_GETHOSTBYNAME symbol, which
843 indicates to the C program that the gethostbyname() routine is available
844 to look up host names in some data base or other.
846 d_gethent (d_gethent.U):
847 This variable conditionally defines HAS_GETHOSTENT if gethostent() is
848 available to look up host names in some data base or another.
850 d_gethname (d_gethname.U):
851 This variable conditionally defines the HAS_GETHOSTNAME symbol, which
852 indicates to the C program that the gethostname() routine may be
853 used to derive the host name.
855 d_gethostbyaddr_r (d_gethostbyaddr_r.U):
856 This variable conditionally defines the HAS_GETHOSTBYADDR_R symbol,
857 which indicates to the C program that the gethostbyaddr_r()
858 routine is available.
860 d_gethostbyname_r (d_gethostbyname_r.U):
861 This variable conditionally defines the HAS_GETHOSTBYNAME_R symbol,
862 which indicates to the C program that the gethostbyname_r()
863 routine is available.
865 d_gethostent_r (d_gethostent_r.U):
866 This variable conditionally defines the HAS_GETHOSTENT_R symbol,
867 which indicates to the C program that the gethostent_r()
868 routine is available.
870 d_gethostprotos (d_gethostprotos.U):
871 This variable conditionally defines the HAS_GETHOST_PROTOS symbol,
872 which indicates to the C program that <netdb.h> supplies
873 prototypes for the various gethost*() functions.
874 See also netdbtype.U for probing for various netdb types.
876 d_getitimer (d_getitimer.U):
877 This variable conditionally defines the HAS_GETITIMER symbol, which
878 indicates to the C program that the getitimer() routine is available.
880 d_getlogin (d_getlogin.U):
881 This variable conditionally defines the HAS_GETLOGIN symbol, which
882 indicates to the C program that the getlogin() routine is available
883 to get the login name.
885 d_getlogin_r (d_getlogin_r.U):
886 This variable conditionally defines the HAS_GETLOGIN_R symbol,
887 which indicates to the C program that the getlogin_r()
888 routine is available.
890 d_getmnt (d_getmnt.U):
891 This variable conditionally defines the HAS_GETMNT symbol, which
892 indicates to the C program that the getmnt() routine is available
893 to retrieve one or more mount info blocks by filename.
895 d_getmntent (d_getmntent.U):
896 This variable conditionally defines the HAS_GETMNTENT symbol, which
897 indicates to the C program that the getmntent() routine is available
898 to iterate through mounted files to get their mount info.
900 d_getnbyaddr (d_getnbyad.U):
901 This variable conditionally defines the HAS_GETNETBYADDR symbol, which
902 indicates to the C program that the getnetbyaddr() routine is available
903 to look up networks by their IP addresses.
905 d_getnbyname (d_getnbynm.U):
906 This variable conditionally defines the HAS_GETNETBYNAME symbol, which
907 indicates to the C program that the getnetbyname() routine is available
908 to look up networks by their names.
910 d_getnent (d_getnent.U):
911 This variable conditionally defines HAS_GETNETENT if getnetent() is
912 available to look up network names in some data base or another.
914 d_getnetbyaddr_r (d_getnetbyaddr_r.U):
915 This variable conditionally defines the HAS_GETNETBYADDR_R symbol,
916 which indicates to the C program that the getnetbyaddr_r()
917 routine is available.
919 d_getnetbyname_r (d_getnetbyname_r.U):
920 This variable conditionally defines the HAS_GETNETBYNAME_R symbol,
921 which indicates to the C program that the getnetbyname_r()
922 routine is available.
924 d_getnetent_r (d_getnetent_r.U):
925 This variable conditionally defines the HAS_GETNETENT_R symbol,
926 which indicates to the C program that the getnetent_r()
927 routine is available.
929 d_getnetprotos (d_getnetprotos.U):
930 This variable conditionally defines the HAS_GETNET_PROTOS symbol,
931 which indicates to the C program that <netdb.h> supplies
932 prototypes for the various getnet*() functions.
933 See also netdbtype.U for probing for various netdb types.
935 d_getpagsz (d_getpagsz.U):
936 This variable conditionally defines HAS_GETPAGESIZE if getpagesize()
937 is available to get the system page size.
939 d_getpbyname (d_getprotby.U):
940 This variable conditionally defines the HAS_GETPROTOBYNAME
941 symbol, which indicates to the C program that the
942 getprotobyname() routine is available to look up protocols
945 d_getpbynumber (d_getprotby.U):
946 This variable conditionally defines the HAS_GETPROTOBYNUMBER
947 symbol, which indicates to the C program that the
948 getprotobynumber() routine is available to look up protocols
951 d_getpent (d_getpent.U):
952 This variable conditionally defines HAS_GETPROTOENT if getprotoent() is
953 available to look up protocols in some data base or another.
955 d_getpgid (d_getpgid.U):
956 This variable conditionally defines the HAS_GETPGID symbol, which
957 indicates to the C program that the getpgid(pid) function
958 is available to get the process group id.
960 d_getpgrp2 (d_getpgrp2.U):
961 This variable conditionally defines the HAS_GETPGRP2 symbol, which
962 indicates to the C program that the getpgrp2() (as in DG/UX) routine
963 is available to get the current process group.
965 d_getpgrp (d_getpgrp.U):
966 This variable conditionally defines HAS_GETPGRP if getpgrp() is
967 available to get the current process group.
969 d_getppid (d_getppid.U):
970 This variable conditionally defines the HAS_GETPPID symbol, which
971 indicates to the C program that the getppid() routine is available
972 to get the parent process ID.
974 d_getprior (d_getprior.U):
975 This variable conditionally defines HAS_GETPRIORITY if getpriority()
976 is available to get a process's priority.
978 d_getprotobyname_r (d_getprotobyname_r.U):
979 This variable conditionally defines the HAS_GETPROTOBYNAME_R symbol,
980 which indicates to the C program that the getprotobyname_r()
981 routine is available.
983 d_getprotobynumber_r (d_getprotobynumber_r.U):
984 This variable conditionally defines the HAS_GETPROTOBYNUMBER_R symbol,
985 which indicates to the C program that the getprotobynumber_r()
986 routine is available.
988 d_getprotoent_r (d_getprotoent_r.U):
989 This variable conditionally defines the HAS_GETPROTOENT_R symbol,
990 which indicates to the C program that the getprotoent_r()
991 routine is available.
993 d_getprotoprotos (d_getprotoprotos.U):
994 This variable conditionally defines the HAS_GETPROTO_PROTOS symbol,
995 which indicates to the C program that <netdb.h> supplies
996 prototypes for the various getproto*() functions.
997 See also netdbtype.U for probing for various netdb types.
999 d_getprpwnam (d_getprpwnam.U):
1000 This variable conditionally defines HAS_GETPRPWNAM if getprpwnam() is
1001 available to retrieve protected (shadow) password entries by name.
1003 d_getpwent (d_getpwent.U):
1004 This variable conditionally defines the HAS_GETPWENT symbol, which
1005 indicates to the C program that the getpwent() routine is available
1006 for sequential access of the passwd database.
1008 d_getpwent_r (d_getpwent_r.U):
1009 This variable conditionally defines the HAS_GETPWENT_R symbol,
1010 which indicates to the C program that the getpwent_r()
1011 routine is available.
1013 d_getpwnam_r (d_getpwnam_r.U):
1014 This variable conditionally defines the HAS_GETPWNAM_R symbol,
1015 which indicates to the C program that the getpwnam_r()
1016 routine is available.
1018 d_getpwuid_r (d_getpwuid_r.U):
1019 This variable conditionally defines the HAS_GETPWUID_R symbol,
1020 which indicates to the C program that the getpwuid_r()
1021 routine is available.
1023 d_getsbyname (d_getsrvby.U):
1024 This variable conditionally defines the HAS_GETSERVBYNAME
1025 symbol, which indicates to the C program that the
1026 getservbyname() routine is available to look up services
1029 d_getsbyport (d_getsrvby.U):
1030 This variable conditionally defines the HAS_GETSERVBYPORT
1031 symbol, which indicates to the C program that the
1032 getservbyport() routine is available to look up services
1035 d_getsent (d_getsent.U):
1036 This variable conditionally defines HAS_GETSERVENT if getservent() is
1037 available to look up network services in some data base or another.
1039 d_getservbyname_r (d_getservbyname_r.U):
1040 This variable conditionally defines the HAS_GETSERVBYNAME_R symbol,
1041 which indicates to the C program that the getservbyname_r()
1042 routine is available.
1044 d_getservbyport_r (d_getservbyport_r.U):
1045 This variable conditionally defines the HAS_GETSERVBYPORT_R symbol,
1046 which indicates to the C program that the getservbyport_r()
1047 routine is available.
1049 d_getservent_r (d_getservent_r.U):
1050 This variable conditionally defines the HAS_GETSERVENT_R symbol,
1051 which indicates to the C program that the getservent_r()
1052 routine is available.
1054 d_getservprotos (d_getservprotos.U):
1055 This variable conditionally defines the HAS_GETSERV_PROTOS symbol,
1056 which indicates to the C program that <netdb.h> supplies
1057 prototypes for the various getserv*() functions.
1058 See also netdbtype.U for probing for various netdb types.
1060 d_getspnam (d_getspnam.U):
1061 This variable conditionally defines HAS_GETSPNAM if getspnam() is
1062 available to retrieve SysV shadow password entries by name.
1064 d_getspnam_r (d_getspnam_r.U):
1065 This variable conditionally defines the HAS_GETSPNAM_R symbol,
1066 which indicates to the C program that the getspnam_r()
1067 routine is available.
1069 d_gettimeod (d_ftime.U):
1070 This variable conditionally defines the HAS_GETTIMEOFDAY symbol, which
1071 indicates that the gettimeofday() system call exists (to obtain a
1072 sub-second accuracy clock). You should probably include <sys/resource.h>.
1074 d_gmtime_r (d_gmtime_r.U):
1075 This variable conditionally defines the HAS_GMTIME_R symbol,
1076 which indicates to the C program that the gmtime_r()
1077 routine is available.
1079 d_gnulibc (d_gnulibc.U):
1080 Defined if we're dealing with the GNU C Library.
1082 d_grpasswd (i_grp.U):
1083 This variable conditionally defines GRPASSWD, which indicates
1084 that struct group in <grp.h> contains gr_passwd.
1086 d_hasmntopt (d_hasmntopt.U):
1087 This variable conditionally defines the HAS_HASMNTOPT symbol, which
1088 indicates to the C program that the hasmntopt() routine is available
1089 to query the mount options of file systems.
1091 d_htonl (d_htonl.U):
1092 This variable conditionally defines HAS_HTONL if htonl() and its
1093 friends are available to do network order byte swapping.
1095 d_ilogbl (d_ilogbl.U):
1096 This variable conditionally defines the HAS_ILOGBL symbol, which
1097 indicates to the C program that the ilogbl() routine is available.
1098 If scalbnl is also present we can emulate frexpl.
1100 d_index (d_strchr.U):
1101 This variable conditionally defines HAS_INDEX if index() and
1102 rindex() are available for string searching.
1104 d_inetaton (d_inetaton.U):
1105 This variable conditionally defines the HAS_INET_ATON symbol, which
1106 indicates to the C program that the inet_aton() function is available
1107 to parse IP address "dotted-quad" strings.
1109 d_int64_t (d_int64_t.U):
1110 This symbol will be defined if the C compiler supports int64_t.
1112 d_isascii (d_isascii.U):
1113 This variable conditionally defines the HAS_ISASCII constant,
1114 which indicates to the C program that isascii() is available.
1116 d_isfinite (d_isfinite.U):
1117 This variable conditionally defines the HAS_ISFINITE symbol, which
1118 indicates to the C program that the isfinite() routine is available.
1120 d_isinf (d_isinf.U):
1121 This variable conditionally defines the HAS_ISINF symbol, which
1122 indicates to the C program that the isinf() routine is available.
1124 d_isnan (d_isnan.U):
1125 This variable conditionally defines the HAS_ISNAN symbol, which
1126 indicates to the C program that the isnan() routine is available.
1128 d_isnanl (d_isnanl.U):
1129 This variable conditionally defines the HAS_ISNANL symbol, which
1130 indicates to the C program that the isnanl() routine is available.
1132 d_killpg (d_killpg.U):
1133 This variable conditionally defines the HAS_KILLPG symbol, which
1134 indicates to the C program that the killpg() routine is available
1135 to kill process groups.
1137 d_lchown (d_lchown.U):
1138 This variable conditionally defines the HAS_LCHOWN symbol, which
1139 indicates to the C program that the lchown() routine is available
1140 to operate on a symbolic link (instead of following the link).
1142 d_ldbl_dig (d_ldbl_dig.U):
1143 This variable conditionally defines d_ldbl_dig if this system's
1144 header files provide LDBL_DIG, which is the number of significant
1145 digits in a long double precision number.
1148 This variable conditionally defines HAS_LINK if link() is
1149 available to create hard links.
1151 d_localtime_r (d_localtime_r.U):
1152 This variable conditionally defines the HAS_LOCALTIME_R symbol,
1153 which indicates to the C program that the localtime_r()
1154 routine is available.
1156 d_locconv (d_locconv.U):
1157 This variable conditionally defines HAS_LOCALECONV if localeconv() is
1158 available for numeric and monetary formatting conventions.
1160 d_lockf (d_lockf.U):
1161 This variable conditionally defines HAS_LOCKF if lockf() is
1162 available to do file locking.
1164 d_longdbl (d_longdbl.U):
1165 This variable conditionally defines HAS_LONG_DOUBLE if
1166 the long double type is supported.
1168 d_longlong (d_longlong.U):
1169 This variable conditionally defines HAS_LONG_LONG if
1170 the long long type is supported.
1172 d_lseekproto (d_lseekproto.U):
1173 This variable conditionally defines the HAS_LSEEK_PROTO symbol,
1174 which indicates to the C program that the system provides
1175 a prototype for the lseek() function. Otherwise, it is
1176 up to the program to supply one.
1178 d_lstat (d_lstat.U):
1179 This variable conditionally defines HAS_LSTAT if lstat() is
1180 available to do file stats on symbolic links.
1182 d_madvise (d_madvise.U):
1183 This variable conditionally defines HAS_MADVISE if madvise() is
1184 available to map a file into memory.
1186 d_mblen (d_mblen.U):
1187 This variable conditionally defines the HAS_MBLEN symbol, which
1188 indicates to the C program that the mblen() routine is available
1189 to find the number of bytes in a multibye character.
1191 d_mbstowcs (d_mbstowcs.U):
1192 This variable conditionally defines the HAS_MBSTOWCS symbol, which
1193 indicates to the C program that the mbstowcs() routine is available
1194 to convert a multibyte string into a wide character string.
1196 d_mbtowc (d_mbtowc.U):
1197 This variable conditionally defines the HAS_MBTOWC symbol, which
1198 indicates to the C program that the mbtowc() routine is available
1199 to convert multibyte to a wide character.
1201 d_memchr (d_memchr.U):
1202 This variable conditionally defines the HAS_MEMCHR symbol, which
1203 indicates to the C program that the memchr() routine is available
1204 to locate characters within a C string.
1206 d_memcmp (d_memcmp.U):
1207 This variable conditionally defines the HAS_MEMCMP symbol, which
1208 indicates to the C program that the memcmp() routine is available
1209 to compare blocks of memory.
1211 d_memcpy (d_memcpy.U):
1212 This variable conditionally defines the HAS_MEMCPY symbol, which
1213 indicates to the C program that the memcpy() routine is available
1214 to copy blocks of memory.
1216 d_memmove (d_memmove.U):
1217 This variable conditionally defines the HAS_MEMMOVE symbol, which
1218 indicates to the C program that the memmove() routine is available
1219 to copy potentatially overlapping blocks of memory.
1221 d_memset (d_memset.U):
1222 This variable conditionally defines the HAS_MEMSET symbol, which
1223 indicates to the C program that the memset() routine is available
1224 to set blocks of memory.
1226 d_mkdir (d_mkdir.U):
1227 This variable conditionally defines the HAS_MKDIR symbol, which
1228 indicates to the C program that the mkdir() routine is available
1229 to create directories..
1231 d_mkdtemp (d_mkdtemp.U):
1232 This variable conditionally defines the HAS_MKDTEMP symbol, which
1233 indicates to the C program that the mkdtemp() routine is available
1234 to exclusively create a uniquely named temporary directory.
1236 d_mkfifo (d_mkfifo.U):
1237 This variable conditionally defines the HAS_MKFIFO symbol, which
1238 indicates to the C program that the mkfifo() routine is available.
1240 d_mkstemp (d_mkstemp.U):
1241 This variable conditionally defines the HAS_MKSTEMP symbol, which
1242 indicates to the C program that the mkstemp() routine is available
1243 to exclusively create and open a uniquely named temporary file.
1245 d_mkstemps (d_mkstemps.U):
1246 This variable conditionally defines the HAS_MKSTEMPS symbol, which
1247 indicates to the C program that the mkstemps() routine is available
1248 to exclusively create and open a uniquely named (with a suffix)
1251 d_mktime (d_mktime.U):
1252 This variable conditionally defines the HAS_MKTIME symbol, which
1253 indicates to the C program that the mktime() routine is available.
1256 This variable conditionally defines HAS_MMAP if mmap() is
1257 available to map a file into memory.
1259 d_modfl (d_modfl.U):
1260 This variable conditionally defines the HAS_MODFL symbol, which
1261 indicates to the C program that the modfl() routine is available.
1263 d_modfl_pow32_bug (d_modfl.U):
1264 This variable conditionally defines the HAS_MODFL_POW32_BUG symbol,
1265 which indicates that modfl() is broken for long doubles >= pow(2, 32).
1266 For example from 4294967303.150000 one would get 4294967302.000000
1267 and 1.150000. The bug has been seen in certain versions of glibc,
1268 release 2.2.2 is known to be okay.
1270 d_modflproto (d_modfl.U):
1271 This symbol, if defined, indicates that the system provides
1272 a prototype for the modfl() function. Otherwise, it is up
1273 to the program to supply one. C99 says it should be
1274 long double modfl(long double, long double *);
1276 d_mprotect (d_mprotect.U):
1277 This variable conditionally defines HAS_MPROTECT if mprotect() is
1278 available to modify the access protection of a memory mapped file.
1281 This variable conditionally defines the HAS_MSG symbol, which
1282 indicates that the entire msg*(2) library is present.
1284 d_msg_ctrunc (d_socket.U):
1285 This variable conditionally defines the HAS_MSG_CTRUNC symbol,
1286 which indicates that the MSG_CTRUNC is available. #ifdef is
1287 not enough because it may be an enum, glibc has been known to do this.
1289 d_msg_dontroute (d_socket.U):
1290 This variable conditionally defines the HAS_MSG_DONTROUTE symbol,
1291 which indicates that the MSG_DONTROUTE is available. #ifdef is
1292 not enough because it may be an enum, glibc has been known to do this.
1294 d_msg_oob (d_socket.U):
1295 This variable conditionally defines the HAS_MSG_OOB symbol,
1296 which indicates that the MSG_OOB is available. #ifdef is
1297 not enough because it may be an enum, glibc has been known to do this.
1299 d_msg_peek (d_socket.U):
1300 This variable conditionally defines the HAS_MSG_PEEK symbol,
1301 which indicates that the MSG_PEEK is available. #ifdef is
1302 not enough because it may be an enum, glibc has been known to do this.
1304 d_msg_proxy (d_socket.U):
1305 This variable conditionally defines the HAS_MSG_PROXY symbol,
1306 which indicates that the MSG_PROXY is available. #ifdef is
1307 not enough because it may be an enum, glibc has been known to do this.
1309 d_msgctl (d_msgctl.U):
1310 This variable conditionally defines the HAS_MSGCTL symbol, which
1311 indicates to the C program that the msgctl() routine is available.
1313 d_msgget (d_msgget.U):
1314 This variable conditionally defines the HAS_MSGGET symbol, which
1315 indicates to the C program that the msgget() routine is available.
1317 d_msghdr_s (d_msghdr_s.U):
1318 This variable conditionally defines the HAS_STRUCT_MSGHDR symbol,
1319 which indicates that the struct msghdr is supported.
1321 d_msgrcv (d_msgrcv.U):
1322 This variable conditionally defines the HAS_MSGRCV symbol, which
1323 indicates to the C program that the msgrcv() routine is available.
1325 d_msgsnd (d_msgsnd.U):
1326 This variable conditionally defines the HAS_MSGSND symbol, which
1327 indicates to the C program that the msgsnd() routine is available.
1329 d_msync (d_msync.U):
1330 This variable conditionally defines HAS_MSYNC if msync() is
1331 available to synchronize a mapped file.
1333 d_munmap (d_munmap.U):
1334 This variable conditionally defines HAS_MUNMAP if munmap() is
1335 available to unmap a region mapped by mmap().
1337 d_mymalloc (mallocsrc.U):
1338 This variable conditionally defines MYMALLOC in case other parts
1339 of the source want to take special action if MYMALLOC is used.
1340 This may include different sorts of profiling or error detection.
1343 This variable conditionally defines the HAS_NICE symbol, which
1344 indicates to the C program that the nice() routine is available.
1346 d_nl_langinfo (d_nl_langinfo.U):
1347 This variable conditionally defines the HAS_NL_LANGINFO symbol, which
1348 indicates to the C program that the nl_langinfo() routine is available.
1350 d_nv_preserves_uv (perlxv.U):
1351 This variable indicates whether a variable of type nvtype
1352 can preserve all the bits a variable of type uvtype.
1354 d_off64_t (d_off64_t.U):
1355 This symbol will be defined if the C compiler supports off64_t.
1357 d_old_pthread_create_joinable (d_pthrattrj.U):
1358 This variable conditionally defines pthread_create_joinable.
1359 undef if pthread.h defines PTHREAD_CREATE_JOINABLE.
1361 d_oldpthreads (usethreads.U):
1362 This variable conditionally defines the OLD_PTHREADS_API symbol,
1363 and indicates that Perl should be built to use the old
1364 draft POSIX threads API. This is only potentially meaningful if
1367 d_oldsock (d_socket.U):
1368 This variable conditionally defines the OLDSOCKET symbol, which
1369 indicates that the BSD socket interface is based on 4.1c and not 4.2.
1371 d_open3 (d_open3.U):
1372 This variable conditionally defines the HAS_OPEN3 manifest constant,
1373 which indicates to the C program that the 3 argument version of
1374 the open(2) function is available.
1376 d_pathconf (d_pathconf.U):
1377 This variable conditionally defines the HAS_PATHCONF symbol, which
1378 indicates to the C program that the pathconf() routine is available
1379 to determine file-system related limits and options associated
1380 with a given filename.
1382 d_pause (d_pause.U):
1383 This variable conditionally defines the HAS_PAUSE symbol, which
1384 indicates to the C program that the pause() routine is available
1385 to suspend a process until a signal is received.
1387 d_perl_otherlibdirs (otherlibdirs.U):
1388 This variable conditionally defines PERL_OTHERLIBDIRS, which
1389 contains a colon-separated set of paths for the perl binary to
1390 include in @INC. See also otherlibdirs.
1392 d_phostname (d_gethname.U):
1393 This variable conditionally defines the HAS_PHOSTNAME symbol, which
1394 contains the shell command which, when fed to popen(), may be
1395 used to derive the host name.
1398 This variable conditionally defines the HAS_PIPE symbol, which
1399 indicates to the C program that the pipe() routine is available
1400 to create an inter-process channel.
1403 This variable conditionally defines the HAS_POLL symbol, which
1404 indicates to the C program that the poll() routine is available
1405 to poll active file descriptors.
1407 d_portable (d_portable.U):
1408 This variable conditionally defines the PORTABLE symbol, which
1409 indicates to the C program that it should not assume that it is
1410 running on the machine it was compiled on.
1412 d_PRId64 (quadfio.U):
1413 This variable conditionally defines the PERL_PRId64 symbol, which
1414 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1416 d_PRIeldbl (longdblfio.U):
1417 This variable conditionally defines the PERL_PRIfldbl symbol, which
1418 indiciates that stdio has a symbol to print long doubles.
1420 d_PRIEUldbl (longdblfio.U):
1421 This variable conditionally defines the PERL_PRIfldbl symbol, which
1422 indiciates that stdio has a symbol to print long doubles.
1423 The 'U' in the name is to separate this from d_PRIeldbl so that even
1424 case-blind systems can see the difference.
1426 d_PRIfldbl (longdblfio.U):
1427 This variable conditionally defines the PERL_PRIfldbl symbol, which
1428 indiciates that stdio has a symbol to print long doubles.
1430 d_PRIFUldbl (longdblfio.U):
1431 This variable conditionally defines the PERL_PRIfldbl symbol, which
1432 indiciates that stdio has a symbol to print long doubles.
1433 The 'U' in the name is to separate this from d_PRIfldbl so that even
1434 case-blind systems can see the difference.
1436 d_PRIgldbl (longdblfio.U):
1437 This variable conditionally defines the PERL_PRIfldbl symbol, which
1438 indiciates that stdio has a symbol to print long doubles.
1440 d_PRIGUldbl (longdblfio.U):
1441 This variable conditionally defines the PERL_PRIfldbl symbol, which
1442 indiciates that stdio has a symbol to print long doubles.
1443 The 'U' in the name is to separate this from d_PRIgldbl so that even
1444 case-blind systems can see the difference.
1446 d_PRIi64 (quadfio.U):
1447 This variable conditionally defines the PERL_PRIi64 symbol, which
1448 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1450 d_PRIo64 (quadfio.U):
1451 This variable conditionally defines the PERL_PRIo64 symbol, which
1452 indiciates that stdio has a symbol to print 64-bit octal numbers.
1454 d_PRIu64 (quadfio.U):
1455 This variable conditionally defines the PERL_PRIu64 symbol, which
1456 indiciates that stdio has a symbol to print 64-bit unsigned decimal
1459 d_PRIx64 (quadfio.U):
1460 This variable conditionally defines the PERL_PRIx64 symbol, which
1461 indiciates that stdio has a symbol to print 64-bit hexadecimal numbers.
1463 d_PRIXU64 (quadfio.U):
1464 This variable conditionally defines the PERL_PRIXU64 symbol, which
1465 indiciates that stdio has a symbol to print 64-bit hExADECimAl numbers.
1466 The 'U' in the name is to separate this from d_PRIx64 so that even
1467 case-blind systems can see the difference.
1469 d_procselfexe (d_procselfexe.U):
1470 Defined if $procselfexe is symlink to the absolute
1471 pathname of the executing program.
1473 d_pthread_atfork (d_pthread_atfork.U):
1474 This variable conditionally defines the HAS_PTHREAD_ATFORK symbol,
1475 which indicates to the C program that the pthread_atfork()
1476 routine is available.
1478 d_pthread_attr_setscope (d_pthread_attr_ss.U):
1479 This variable conditionally defines HAS_PTHREAD_ATTR_SETSCOPE if
1480 pthread_attr_setscope() is available to set the contention scope
1481 attribute of a thread attribute object.
1483 d_pthread_yield (d_pthread_y.U):
1484 This variable conditionally defines the HAS_PTHREAD_YIELD
1485 symbol if the pthread_yield routine is available to yield
1486 the execution of the current thread.
1489 This variable conditionally defines PWAGE, which indicates
1490 that struct passwd contains pw_age.
1492 d_pwchange (i_pwd.U):
1493 This variable conditionally defines PWCHANGE, which indicates
1494 that struct passwd contains pw_change.
1496 d_pwclass (i_pwd.U):
1497 This variable conditionally defines PWCLASS, which indicates
1498 that struct passwd contains pw_class.
1500 d_pwcomment (i_pwd.U):
1501 This variable conditionally defines PWCOMMENT, which indicates
1502 that struct passwd contains pw_comment.
1504 d_pwexpire (i_pwd.U):
1505 This variable conditionally defines PWEXPIRE, which indicates
1506 that struct passwd contains pw_expire.
1508 d_pwgecos (i_pwd.U):
1509 This variable conditionally defines PWGECOS, which indicates
1510 that struct passwd contains pw_gecos.
1512 d_pwpasswd (i_pwd.U):
1513 This variable conditionally defines PWPASSWD, which indicates
1514 that struct passwd contains pw_passwd.
1516 d_pwquota (i_pwd.U):
1517 This variable conditionally defines PWQUOTA, which indicates
1518 that struct passwd contains pw_quota.
1520 d_qgcvt (d_qgcvt.U):
1521 This variable conditionally defines the HAS_QGCVT symbol, which
1522 indicates to the C program that the qgcvt() routine is available.
1524 d_quad (quadtype.U):
1525 This variable, if defined, tells that there's a 64-bit integer type,
1528 d_random_r (d_random_r.U):
1529 This variable conditionally defines the HAS_RANDOM_R symbol,
1530 which indicates to the C program that the random_r()
1531 routine is available.
1533 d_readdir64_r (d_readdir64_r.U):
1534 This variable conditionally defines the HAS_READDIR64_R symbol,
1535 which indicates to the C program that the readdir64_r()
1536 routine is available.
1538 d_readdir (d_readdir.U):
1539 This variable conditionally defines HAS_READDIR if readdir() is
1540 available to read directory entries.
1542 d_readdir_r (d_readdir_r.U):
1543 This variable conditionally defines the HAS_READDIR_R symbol,
1544 which indicates to the C program that the readdir_r()
1545 routine is available.
1547 d_readlink (d_readlink.U):
1548 This variable conditionally defines the HAS_READLINK symbol, which
1549 indicates to the C program that the readlink() routine is available
1550 to read the value of a symbolic link.
1552 d_readv (d_readv.U):
1553 This variable conditionally defines the HAS_READV symbol, which
1554 indicates to the C program that the readv() routine is available.
1556 d_recvmsg (d_recvmsg.U):
1557 This variable conditionally defines the HAS_RECVMSG symbol, which
1558 indicates to the C program that the recvmsg() routine is available.
1560 d_rename (d_rename.U):
1561 This variable conditionally defines the HAS_RENAME symbol, which
1562 indicates to the C program that the rename() routine is available
1565 d_rewinddir (d_readdir.U):
1566 This variable conditionally defines HAS_REWINDDIR if rewinddir() is
1569 d_rmdir (d_rmdir.U):
1570 This variable conditionally defines HAS_RMDIR if rmdir() is
1571 available to remove directories.
1573 d_safebcpy (d_safebcpy.U):
1574 This variable conditionally defines the HAS_SAFE_BCOPY symbol if
1575 the bcopy() routine can do overlapping copies. Normally, you
1576 should probably use memmove().
1578 d_safemcpy (d_safemcpy.U):
1579 This variable conditionally defines the HAS_SAFE_MEMCPY symbol if
1580 the memcpy() routine can do overlapping copies.
1581 For overlapping copies, memmove() should be used, if available.
1583 d_sanemcmp (d_sanemcmp.U):
1584 This variable conditionally defines the HAS_SANE_MEMCMP symbol if
1585 the memcpy() routine is available and can be used to compare relative
1586 magnitudes of chars with their high bits set.
1588 d_sbrkproto (d_sbrkproto.U):
1589 This variable conditionally defines the HAS_SBRK_PROTO symbol,
1590 which indicates to the C program that the system provides
1591 a prototype for the sbrk() function. Otherwise, it is
1592 up to the program to supply one.
1594 d_scalbnl (d_scalbnl.U):
1595 This variable conditionally defines the HAS_SCALBNL symbol, which
1596 indicates to the C program that the scalbnl() routine is available.
1597 If ilogbl is also present we can emulate frexpl.
1599 d_sched_yield (d_pthread_y.U):
1600 This variable conditionally defines the HAS_SCHED_YIELD
1601 symbol if the sched_yield routine is available to yield
1602 the execution of the current thread.
1604 d_scm_rights (d_socket.U):
1605 This variable conditionally defines the HAS_SCM_RIGHTS symbol,
1606 which indicates that the SCM_RIGHTS is available. #ifdef is
1607 not enough because it may be an enum, glibc has been known to do this.
1609 d_SCNfldbl (longdblfio.U):
1610 This variable conditionally defines the PERL_PRIfldbl symbol, which
1611 indiciates that stdio has a symbol to scan long doubles.
1613 d_seekdir (d_readdir.U):
1614 This variable conditionally defines HAS_SEEKDIR if seekdir() is
1617 d_select (d_select.U):
1618 This variable conditionally defines HAS_SELECT if select() is
1619 available to select active file descriptors. A <sys/time.h>
1620 inclusion may be necessary for the timeout field.
1623 This variable conditionally defines the HAS_SEM symbol, which
1624 indicates that the entire sem*(2) library is present.
1626 d_semctl (d_semctl.U):
1627 This variable conditionally defines the HAS_SEMCTL symbol, which
1628 indicates to the C program that the semctl() routine is available.
1630 d_semctl_semid_ds (d_union_semun.U):
1631 This variable conditionally defines USE_SEMCTL_SEMID_DS, which
1632 indicates that struct semid_ds * is to be used for semctl IPC_STAT.
1634 d_semctl_semun (d_union_semun.U):
1635 This variable conditionally defines USE_SEMCTL_SEMUN, which
1636 indicates that union semun is to be used for semctl IPC_STAT.
1638 d_semget (d_semget.U):
1639 This variable conditionally defines the HAS_SEMGET symbol, which
1640 indicates to the C program that the semget() routine is available.
1642 d_semop (d_semop.U):
1643 This variable conditionally defines the HAS_SEMOP symbol, which
1644 indicates to the C program that the semop() routine is available.
1646 d_sendmsg (d_sendmsg.U):
1647 This variable conditionally defines the HAS_SENDMSG symbol, which
1648 indicates to the C program that the sendmsg() routine is available.
1650 d_setegid (d_setegid.U):
1651 This variable conditionally defines the HAS_SETEGID symbol, which
1652 indicates to the C program that the setegid() routine is available
1653 to change the effective gid of the current program.
1655 d_seteuid (d_seteuid.U):
1656 This variable conditionally defines the HAS_SETEUID symbol, which
1657 indicates to the C program that the seteuid() routine is available
1658 to change the effective uid of the current program.
1660 d_setgrent (d_setgrent.U):
1661 This variable conditionally defines the HAS_SETGRENT symbol, which
1662 indicates to the C program that the setgrent() routine is available
1663 for initializing sequential access to the group database.
1665 d_setgrent_r (d_setgrent_r.U):
1666 This variable conditionally defines the HAS_SETGRENT_R symbol,
1667 which indicates to the C program that the setgrent_r()
1668 routine is available.
1670 d_setgrps (d_setgrps.U):
1671 This variable conditionally defines the HAS_SETGROUPS symbol, which
1672 indicates to the C program that the setgroups() routine is available
1673 to set the list of process groups.
1675 d_sethent (d_sethent.U):
1676 This variable conditionally defines HAS_SETHOSTENT if sethostent() is
1679 d_sethostent_r (d_sethostent_r.U):
1680 This variable conditionally defines the HAS_SETHOSTENT_R symbol,
1681 which indicates to the C program that the sethostent_r()
1682 routine is available.
1684 d_setitimer (d_setitimer.U):
1685 This variable conditionally defines the HAS_SETITIMER symbol, which
1686 indicates to the C program that the setitimer() routine is available.
1688 d_setlinebuf (d_setlnbuf.U):
1689 This variable conditionally defines the HAS_SETLINEBUF symbol, which
1690 indicates to the C program that the setlinebuf() routine is available
1691 to change stderr or stdout from block-buffered or unbuffered to a
1694 d_setlocale (d_setlocale.U):
1695 This variable conditionally defines HAS_SETLOCALE if setlocale() is
1696 available to handle locale-specific ctype implementations.
1698 d_setlocale_r (d_setlocale_r.U):
1699 This variable conditionally defines the HAS_SETLOCALE_R symbol,
1700 which indicates to the C program that the setlocale_r()
1701 routine is available.
1703 d_setnent (d_setnent.U):
1704 This variable conditionally defines HAS_SETNETENT if setnetent() is
1707 d_setnetent_r (d_setnetent_r.U):
1708 This variable conditionally defines the HAS_SETNETENT_R symbol,
1709 which indicates to the C program that the setnetent_r()
1710 routine is available.
1712 d_setpent (d_setpent.U):
1713 This variable conditionally defines HAS_SETPROTOENT if setprotoent() is
1716 d_setpgid (d_setpgid.U):
1717 This variable conditionally defines the HAS_SETPGID symbol if the
1718 setpgid(pid, gpid) function is available to set process group ID.
1720 d_setpgrp2 (d_setpgrp2.U):
1721 This variable conditionally defines the HAS_SETPGRP2 symbol, which
1722 indicates to the C program that the setpgrp2() (as in DG/UX) routine
1723 is available to set the current process group.
1725 d_setpgrp (d_setpgrp.U):
1726 This variable conditionally defines HAS_SETPGRP if setpgrp() is
1727 available to set the current process group.
1729 d_setprior (d_setprior.U):
1730 This variable conditionally defines HAS_SETPRIORITY if setpriority()
1731 is available to set a process's priority.
1733 d_setproctitle (d_setproctitle.U):
1734 This variable conditionally defines the HAS_SETPROCTITLE symbol,
1735 which indicates to the C program that the setproctitle() routine
1738 d_setprotoent_r (d_setprotoent_r.U):
1739 This variable conditionally defines the HAS_SETPROTOENT_R symbol,
1740 which indicates to the C program that the setprotoent_r()
1741 routine is available.
1743 d_setpwent (d_setpwent.U):
1744 This variable conditionally defines the HAS_SETPWENT symbol, which
1745 indicates to the C program that the setpwent() routine is available
1746 for initializing sequential access to the passwd database.
1748 d_setpwent_r (d_setpwent_r.U):
1749 This variable conditionally defines the HAS_SETPWENT_R symbol,
1750 which indicates to the C program that the setpwent_r()
1751 routine is available.
1753 d_setregid (d_setregid.U):
1754 This variable conditionally defines HAS_SETREGID if setregid() is
1755 available to change the real and effective gid of the current
1758 d_setresgid (d_setregid.U):
1759 This variable conditionally defines HAS_SETRESGID if setresgid() is
1760 available to change the real, effective and saved gid of the current
1763 d_setresuid (d_setreuid.U):
1764 This variable conditionally defines HAS_SETREUID if setresuid() is
1765 available to change the real, effective and saved uid of the current
1768 d_setreuid (d_setreuid.U):
1769 This variable conditionally defines HAS_SETREUID if setreuid() is
1770 available to change the real and effective uid of the current
1773 d_setrgid (d_setrgid.U):
1774 This variable conditionally defines the HAS_SETRGID symbol, which
1775 indicates to the C program that the setrgid() routine is available
1776 to change the real gid of the current program.
1778 d_setruid (d_setruid.U):
1779 This variable conditionally defines the HAS_SETRUID symbol, which
1780 indicates to the C program that the setruid() routine is available
1781 to change the real uid of the current program.
1783 d_setsent (d_setsent.U):
1784 This variable conditionally defines HAS_SETSERVENT if setservent() is
1787 d_setservent_r (d_setservent_r.U):
1788 This variable conditionally defines the HAS_SETSERVENT_R symbol,
1789 which indicates to the C program that the setservent_r()
1790 routine is available.
1792 d_setsid (d_setsid.U):
1793 This variable conditionally defines HAS_SETSID if setsid() is
1794 available to set the process group ID.
1796 d_setvbuf (d_setvbuf.U):
1797 This variable conditionally defines the HAS_SETVBUF symbol, which
1798 indicates to the C program that the setvbuf() routine is available
1799 to change buffering on an open stdio stream.
1802 This variable conditionally defines the USE_SFIO symbol,
1803 and indicates whether sfio is available (and should be used).
1806 This variable conditionally defines the HAS_SHM symbol, which
1807 indicates that the entire shm*(2) library is present.
1809 d_shmat (d_shmat.U):
1810 This variable conditionally defines the HAS_SHMAT symbol, which
1811 indicates to the C program that the shmat() routine is available.
1813 d_shmatprototype (d_shmat.U):
1814 This variable conditionally defines the HAS_SHMAT_PROTOTYPE
1815 symbol, which indicates that sys/shm.h has a prototype for
1818 d_shmctl (d_shmctl.U):
1819 This variable conditionally defines the HAS_SHMCTL symbol, which
1820 indicates to the C program that the shmctl() routine is available.
1822 d_shmdt (d_shmdt.U):
1823 This variable conditionally defines the HAS_SHMDT symbol, which
1824 indicates to the C program that the shmdt() routine is available.
1826 d_shmget (d_shmget.U):
1827 This variable conditionally defines the HAS_SHMGET symbol, which
1828 indicates to the C program that the shmget() routine is available.
1830 d_sigaction (d_sigaction.U):
1831 This variable conditionally defines the HAS_SIGACTION symbol, which
1832 indicates that the Vr4 sigaction() routine is available.
1834 d_sigprocmask (d_sigprocmask.U):
1835 This variable conditionally defines HAS_SIGPROCMASK
1836 if sigprocmask() is available to examine or change the signal mask
1837 of the calling process.
1839 d_sigsetjmp (d_sigsetjmp.U):
1840 This variable conditionally defines the HAS_SIGSETJMP symbol,
1841 which indicates that the sigsetjmp() routine is available to
1842 call setjmp() and optionally save the process's signal mask.
1844 d_sockatmark (d_sockatmark.U):
1845 This variable conditionally defines the HAS_SOCKATMARK symbol, which
1846 indicates to the C program that the sockatmark() routine is available.
1848 d_sockatmarkproto (d_sockatmarkproto.U):
1849 This variable conditionally defines the HAS_SOCKATMARK_PROTO symbol,
1850 which indicates to the C program that the system provides
1851 a prototype for the sockatmark() function. Otherwise, it is
1852 up to the program to supply one.
1854 d_socket (d_socket.U):
1855 This variable conditionally defines HAS_SOCKET, which indicates
1856 that the BSD socket interface is supported.
1858 d_socklen_t (d_socklen_t.U):
1859 This symbol will be defined if the C compiler supports socklen_t.
1861 d_sockpair (d_socket.U):
1862 This variable conditionally defines the HAS_SOCKETPAIR symbol, which
1863 indicates that the BSD socketpair() is supported.
1865 d_socks5_init (d_socks5_init.U):
1866 This variable conditionally defines the HAS_SOCKS5_INIT symbol, which
1867 indicates to the C program that the socks5_init() routine is available.
1869 d_sqrtl (d_sqrtl.U):
1870 This variable conditionally defines the HAS_SQRTL symbol, which
1871 indicates to the C program that the sqrtl() routine is available.
1873 d_srand48_r (d_srand48_r.U):
1874 This variable conditionally defines the HAS_SRAND48_R symbol,
1875 which indicates to the C program that the srand48_r()
1876 routine is available.
1878 d_srandom_r (d_srandom_r.U):
1879 This variable conditionally defines the HAS_SRANDOM_R symbol,
1880 which indicates to the C program that the srandom_r()
1881 routine is available.
1883 d_sresgproto (d_sresgproto.U):
1884 This variable conditionally defines the HAS_SETRESGID_PROTO symbol,
1885 which indicates to the C program that the system provides
1886 a prototype for the setresgid() function. Otherwise, it is
1887 up to the program to supply one.
1889 d_sresuproto (d_sresuproto.U):
1890 This variable conditionally defines the HAS_SETRESUID_PROTO symbol,
1891 which indicates to the C program that the system provides
1892 a prototype for the setresuid() function. Otherwise, it is
1893 up to the program to supply one.
1895 d_statblks (d_statblks.U):
1896 This variable conditionally defines USE_STAT_BLOCKS
1897 if this system has a stat structure declaring
1898 st_blksize and st_blocks.
1900 d_statfs_f_flags (d_statfs_f_flags.U):
1901 This variable conditionally defines the HAS_STRUCT_STATFS_F_FLAGS
1902 symbol, which indicates to struct statfs from has f_flags member.
1903 This kind of struct statfs is coming from sys/mount.h (BSD),
1904 not from sys/statfs.h (SYSV).
1906 d_statfs_s (d_statfs_s.U):
1907 This variable conditionally defines the HAS_STRUCT_STATFS symbol,
1908 which indicates that the struct statfs is supported.
1910 d_statvfs (d_statvfs.U):
1911 This variable conditionally defines the HAS_STATVFS symbol, which
1912 indicates to the C program that the statvfs() routine is available.
1914 d_stdio_cnt_lval (d_stdstdio.U):
1915 This variable conditionally defines STDIO_CNT_LVALUE if the
1916 FILE_cnt macro can be used as an lvalue.
1918 d_stdio_ptr_lval (d_stdstdio.U):
1919 This variable conditionally defines STDIO_PTR_LVALUE if the
1920 FILE_ptr macro can be used as an lvalue.
1922 d_stdio_ptr_lval_nochange_cnt (d_stdstdio.U):
1923 This symbol is defined if using the FILE_ptr macro as an lvalue
1924 to increase the pointer by n leaves File_cnt(fp) unchanged.
1926 d_stdio_ptr_lval_sets_cnt (d_stdstdio.U):
1927 This symbol is defined if using the FILE_ptr macro as an lvalue
1928 to increase the pointer by n has the side effect of decreasing the
1929 value of File_cnt(fp) by n.
1931 d_stdio_stream_array (stdio_streams.U):
1932 This variable tells whether there is an array holding
1935 d_stdiobase (d_stdstdio.U):
1936 This variable conditionally defines USE_STDIO_BASE if this system
1937 has a FILE structure declaring a usable _base field (or equivalent)
1940 d_stdstdio (d_stdstdio.U):
1941 This variable conditionally defines USE_STDIO_PTR if this system
1942 has a FILE structure declaring usable _ptr and _cnt fields (or
1943 equivalent) in stdio.h.
1945 d_strchr (d_strchr.U):
1946 This variable conditionally defines HAS_STRCHR if strchr() and
1947 strrchr() are available for string searching.
1949 d_strcoll (d_strcoll.U):
1950 This variable conditionally defines HAS_STRCOLL if strcoll() is
1951 available to compare strings using collating information.
1953 d_strctcpy (d_strctcpy.U):
1954 This variable conditionally defines the USE_STRUCT_COPY symbol, which
1955 indicates to the C program that this C compiler knows how to copy
1958 d_strerrm (d_strerror.U):
1959 This variable holds what Strerrr is defined as to translate an error
1960 code condition into an error message string. It could be 'strerror'
1961 or a more complex macro emulating strrror with sys_errlist[], or the
1962 "unknown" string when both strerror and sys_errlist are missing.
1964 d_strerror (d_strerror.U):
1965 This variable conditionally defines HAS_STRERROR if strerror() is
1966 available to translate error numbers to strings.
1968 d_strerror_r (d_strerror_r.U):
1969 This variable conditionally defines the HAS_STRERROR_R symbol,
1970 which indicates to the C program that the strerror_r()
1971 routine is available.
1973 d_strftime (d_strftime.U):
1974 This variable conditionally defines the HAS_STRFTIME symbol, which
1975 indicates to the C program that the strftime() routine is available.
1977 d_strtod (d_strtod.U):
1978 This variable conditionally defines the HAS_STRTOD symbol, which
1979 indicates to the C program that the strtod() routine is available
1980 to provide better numeric string conversion than atof().
1982 d_strtol (d_strtol.U):
1983 This variable conditionally defines the HAS_STRTOL symbol, which
1984 indicates to the C program that the strtol() routine is available
1985 to provide better numeric string conversion than atoi() and friends.
1987 d_strtold (d_strtold.U):
1988 This variable conditionally defines the HAS_STRTOLD symbol, which
1989 indicates to the C program that the strtold() routine is available.
1991 d_strtoll (d_strtoll.U):
1992 This variable conditionally defines the HAS_STRTOLL symbol, which
1993 indicates to the C program that the strtoll() routine is available.
1995 d_strtoq (d_strtoq.U):
1996 This variable conditionally defines the HAS_STRTOQ symbol, which
1997 indicates to the C program that the strtoq() routine is available.
1999 d_strtoul (d_strtoul.U):
2000 This variable conditionally defines the HAS_STRTOUL symbol, which
2001 indicates to the C program that the strtoul() routine is available
2002 to provide conversion of strings to unsigned long.
2004 d_strtoull (d_strtoull.U):
2005 This variable conditionally defines the HAS_STRTOULL symbol, which
2006 indicates to the C program that the strtoull() routine is available.
2008 d_strtouq (d_strtouq.U):
2009 This variable conditionally defines the HAS_STRTOUQ symbol, which
2010 indicates to the C program that the strtouq() routine is available.
2012 d_strxfrm (d_strxfrm.U):
2013 This variable conditionally defines HAS_STRXFRM if strxfrm() is
2014 available to transform strings.
2016 d_suidsafe (d_dosuid.U):
2017 This variable conditionally defines SETUID_SCRIPTS_ARE_SECURE_NOW
2018 if setuid scripts can be secure. This test looks in /dev/fd/.
2020 d_symlink (d_symlink.U):
2021 This variable conditionally defines the HAS_SYMLINK symbol, which
2022 indicates to the C program that the symlink() routine is available
2023 to create symbolic links.
2025 d_syscall (d_syscall.U):
2026 This variable conditionally defines HAS_SYSCALL if syscall() is
2027 available call arbitrary system calls.
2029 d_syscallproto (d_syscallproto.U):
2030 This variable conditionally defines the HAS_SYSCALL_PROTO symbol,
2031 which indicates to the C program that the system provides
2032 a prototype for the syscall() function. Otherwise, it is
2033 up to the program to supply one.
2035 d_sysconf (d_sysconf.U):
2036 This variable conditionally defines the HAS_SYSCONF symbol, which
2037 indicates to the C program that the sysconf() routine is available
2038 to determine system related limits and options.
2040 d_sysernlst (d_strerror.U):
2041 This variable conditionally defines HAS_SYS_ERRNOLIST if sys_errnolist[]
2042 is available to translate error numbers to the symbolic name.
2044 d_syserrlst (d_strerror.U):
2045 This variable conditionally defines HAS_SYS_ERRLIST if sys_errlist[] is
2046 available to translate error numbers to strings.
2048 d_system (d_system.U):
2049 This variable conditionally defines HAS_SYSTEM if system() is
2050 available to issue a shell command.
2052 d_tcgetpgrp (d_tcgtpgrp.U):
2053 This variable conditionally defines the HAS_TCGETPGRP symbol, which
2054 indicates to the C program that the tcgetpgrp() routine is available.
2055 to get foreground process group ID.
2057 d_tcsetpgrp (d_tcstpgrp.U):
2058 This variable conditionally defines the HAS_TCSETPGRP symbol, which
2059 indicates to the C program that the tcsetpgrp() routine is available
2060 to set foreground process group ID.
2062 d_telldir (d_readdir.U):
2063 This variable conditionally defines HAS_TELLDIR if telldir() is
2066 d_telldirproto (d_telldirproto.U):
2067 This variable conditionally defines the HAS_TELLDIR_PROTO symbol,
2068 which indicates to the C program that the system provides
2069 a prototype for the telldir() function. Otherwise, it is
2070 up to the program to supply one.
2073 This variable conditionally defines the HAS_TIME symbol, which indicates
2074 that the time() routine exists. The time() routine is normaly
2075 provided on UNIX systems.
2077 d_times (d_times.U):
2078 This variable conditionally defines the HAS_TIMES symbol, which indicates
2079 that the times() routine exists. The times() routine is normaly
2080 provided on UNIX systems. You may have to include <sys/times.h>.
2082 d_tm_tm_gmtoff (i_time.U):
2083 This variable conditionally defines HAS_TM_TM_GMTOFF, which indicates
2084 indicates to the C program that the struct tm has the tm_gmtoff field.
2086 d_tm_tm_zone (i_time.U):
2087 This variable conditionally defines HAS_TM_TM_ZONE, which indicates
2088 indicates to the C program that the struct tm has the tm_zone field.
2090 d_tmpnam_r (d_tmpnam_r.U):
2091 This variable conditionally defines the HAS_TMPNAM_R symbol,
2092 which indicates to the C program that the tmpnam_r()
2093 routine is available.
2095 d_truncate (d_truncate.U):
2096 This variable conditionally defines HAS_TRUNCATE if truncate() is
2097 available to truncate files.
2099 d_ttyname_r (d_ttyname_r.U):
2100 This variable conditionally defines the HAS_TTYNAME_R symbol,
2101 which indicates to the C program that the ttyname_r()
2102 routine is available.
2104 d_tzname (d_tzname.U):
2105 This variable conditionally defines HAS_TZNAME if tzname[] is
2106 available to access timezone names.
2108 d_u32align (d_u32align.U):
2109 This variable tells whether you must access character data
2110 through U32-aligned pointers.
2112 d_ualarm (d_ualarm.U):
2113 This variable conditionally defines the HAS_UALARM symbol, which
2114 indicates to the C program that the ualarm() routine is available.
2116 d_umask (d_umask.U):
2117 This variable conditionally defines the HAS_UMASK symbol, which
2118 indicates to the C program that the umask() routine is available.
2119 to set and get the value of the file creation mask.
2121 d_uname (d_gethname.U):
2122 This variable conditionally defines the HAS_UNAME symbol, which
2123 indicates to the C program that the uname() routine may be
2124 used to derive the host name.
2126 d_union_semun (d_union_semun.U):
2127 This variable conditionally defines HAS_UNION_SEMUN if the
2128 union semun is defined by including <sys/sem.h>.
2130 d_unordered (d_unordered.U):
2131 This variable conditionally defines the HAS_UNORDERED symbol, which
2132 indicates to the C program that the unordered() routine is available.
2134 d_usleep (d_usleep.U):
2135 This variable conditionally defines HAS_USLEEP if usleep() is
2136 available to do high granularity sleeps.
2138 d_usleepproto (d_usleepproto.U):
2139 This variable conditionally defines the HAS_USLEEP_PROTO symbol,
2140 which indicates to the C program that the system provides
2141 a prototype for the usleep() function. Otherwise, it is
2142 up to the program to supply one.
2144 d_ustat (d_ustat.U):
2145 This variable conditionally defines HAS_USTAT if ustat() is
2146 available to query file system statistics by dev_t.
2148 d_vendorarch (vendorarch.U):
2149 This variable conditionally defined PERL_VENDORARCH.
2151 d_vendorbin (vendorbin.U):
2152 This variable conditionally defines PERL_VENDORBIN.
2154 d_vendorlib (vendorlib.U):
2155 This variable conditionally defines PERL_VENDORLIB.
2157 d_vendorscript (vendorscript.U):
2158 This variable conditionally defines PERL_VENDORSCRIPT.
2160 d_vfork (d_vfork.U):
2161 This variable conditionally defines the HAS_VFORK symbol, which
2162 indicates the vfork() routine is available.
2164 d_void_closedir (d_closedir.U):
2165 This variable conditionally defines VOID_CLOSEDIR if closedir()
2166 does not return a value.
2168 d_voidsig (d_voidsig.U):
2169 This variable conditionally defines VOIDSIG if this system
2170 declares "void (*signal(...))()" in signal.h. The old way was to
2171 declare it as "int (*signal(...))()".
2173 d_voidtty (i_sysioctl.U):
2174 This variable conditionally defines USE_IOCNOTTY to indicate that the
2175 ioctl() call with TIOCNOTTY should be used to void tty association.
2176 Otherwise (on USG probably), it is enough to close the standard file
2177 decriptors and do a setpgrp().
2179 d_volatile (d_volatile.U):
2180 This variable conditionally defines the HASVOLATILE symbol, which
2181 indicates to the C program that this C compiler knows about the
2182 volatile declaration.
2184 d_vprintf (d_vprintf.U):
2185 This variable conditionally defines the HAS_VPRINTF symbol, which
2186 indicates to the C program that the vprintf() routine is available
2187 to printf with a pointer to an argument list.
2189 d_wait4 (d_wait4.U):
2190 This variable conditionally defines the HAS_WAIT4 symbol, which
2191 indicates the wait4() routine is available.
2193 d_waitpid (d_waitpid.U):
2194 This variable conditionally defines HAS_WAITPID if waitpid() is
2195 available to wait for child process.
2197 d_wcstombs (d_wcstombs.U):
2198 This variable conditionally defines the HAS_WCSTOMBS symbol, which
2199 indicates to the C program that the wcstombs() routine is available
2200 to convert wide character strings to multibyte strings.
2202 d_wctomb (d_wctomb.U):
2203 This variable conditionally defines the HAS_WCTOMB symbol, which
2204 indicates to the C program that the wctomb() routine is available
2205 to convert a wide character to a multibyte.
2207 d_writev (d_writev.U):
2208 This variable conditionally defines the HAS_WRITEV symbol, which
2209 indicates to the C program that the writev() routine is available.
2212 This variable conditionally defines the symbol XENIX, which alerts
2213 the C program that it runs under Xenix.
2216 This variable is used internally by Configure to determine the
2217 full pathname (if any) of the date program. After Configure runs,
2218 the value is reset to a plain "date" and is not useful.
2220 db_hashtype (i_db.U):
2221 This variable contains the type of the hash structure element
2222 in the <db.h> header file. In older versions of DB, it was
2223 int, while in newer ones it is u_int32_t.
2225 db_prefixtype (i_db.U):
2226 This variable contains the type of the prefix structure element
2227 in the <db.h> header file. In older versions of DB, it was
2228 int, while in newer ones it is size_t.
2230 db_version_major (i_db.U):
2231 This variable contains the major version number of
2232 Berkeley DB found in the <db.h> header file.
2234 db_version_minor (i_db.U):
2235 This variable contains the minor version number of
2236 Berkeley DB found in the <db.h> header file.
2237 For DB version 1 this is always 0.
2239 db_version_patch (i_db.U):
2240 This variable contains the patch version number of
2241 Berkeley DB found in the <db.h> header file.
2242 For DB version 1 this is always 0.
2244 defvoidused (voidflags.U):
2245 This variable contains the default value of the VOIDUSED symbol (15).
2247 direntrytype (i_dirent.U):
2248 This symbol is set to 'struct direct' or 'struct dirent' depending on
2249 whether dirent is available or not. You should use this pseudo type to
2250 portably declare your directory entries.
2253 This variable contains the extension that is to be used for the
2254 dynamically loaded modules that perl generaties.
2257 This variable contains the name of the dynamic loading file that
2258 will be used with the package.
2260 doublesize (doublesize.U):
2261 This variable contains the value of the DOUBLESIZE symbol, which
2262 indicates to the C program how many bytes there are in a double.
2264 drand01 (randfunc.U):
2265 Indicates the macro to be used to generate normalized
2266 random numbers. Uses randfunc, often divided by
2267 (double) (((unsigned long) 1 << randbits)) in order to
2268 normalize the result.
2269 In C programs, the macro 'Drand01' is mapped to drand01.
2271 drand48_r_proto (d_drand48_r.U):
2272 This variable encodes the prototype of drand48_r.
2273 It is zero if d_drand48_r is undef, and one of the
2274 REENTRANT_PROTO_T_ABC macros of reentr.h if d_drand48_r
2277 dynamic_ext (Extensions.U):
2278 This variable holds a list of XS extension files we want to
2279 link dynamically into the package. It is used by Makefile.
2281 eagain (nblock_io.U):
2282 This variable bears the symbolic errno code set by read() when no
2283 data is present on the file and non-blocking I/O was enabled (otherwise,
2284 read() blocks naturally).
2287 This variable conditionally defines EBCDIC if this
2288 system uses EBCDIC encoding. Among other things, this
2289 means that the character ranges are not contiguous.
2293 This variable is used internally by Configure to determine the
2294 full pathname (if any) of the echo program. After Configure runs,
2295 the value is reset to a plain "echo" and is not useful.
2298 This variable is used internally by Configure to determine the
2299 full pathname (if any) of the egrep program. After Configure runs,
2300 the value is reset to a plain "egrep" and is not useful.
2303 This variable is defined but not used by Configure.
2304 The value is a plain '' and is not useful.
2306 endgrent_r_proto (d_endgrent_r.U):
2307 This variable encodes the prototype of endgrent_r.
2308 It is zero if d_endgrent_r is undef, and one of the
2309 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endgrent_r
2312 endhostent_r_proto (d_endhostent_r.U):
2313 This variable encodes the prototype of endhostent_r.
2314 It is zero if d_endhostent_r is undef, and one of the
2315 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endhostent_r
2318 endnetent_r_proto (d_endnetent_r.U):
2319 This variable encodes the prototype of endnetent_r.
2320 It is zero if d_endnetent_r is undef, and one of the
2321 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endnetent_r
2324 endprotoent_r_proto (d_endprotoent_r.U):
2325 This variable encodes the prototype of endprotoent_r.
2326 It is zero if d_endprotoent_r is undef, and one of the
2327 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endprotoent_r
2330 endpwent_r_proto (d_endpwent_r.U):
2331 This variable encodes the prototype of endpwent_r.
2332 It is zero if d_endpwent_r is undef, and one of the
2333 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endpwent_r
2336 endservent_r_proto (d_endservent_r.U):
2337 This variable encodes the prototype of endservent_r.
2338 It is zero if d_endservent_r is undef, and one of the
2339 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endservent_r
2343 When running under Eunice this variable contains a command which will
2344 convert a shell script to the proper form of text file for it to be
2345 executable by the shell. On other systems it is a no-op.
2348 This is an old synonym for _exe.
2351 This variable is used internally by Configure to determine the
2352 full pathname (if any) of the expr program. After Configure runs,
2353 the value is reset to a plain "expr" and is not useful.
2355 extensions (Extensions.U):
2356 This variable holds a list of all extension files (both XS and
2357 non-xs linked into the package. It is propagated to Config.pm
2358 and is typically used to test whether a particular extesion
2362 This variable holds a list of extra modules to install.
2364 fflushall (fflushall.U):
2365 This symbol, if defined, tells that to flush
2366 all pending stdio output one must loop through all
2367 the stdio file handles stored in an array and fflush them.
2368 Note that if fflushNULL is defined, fflushall will not
2369 even be probed for and will be left undefined.
2371 fflushNULL (fflushall.U):
2372 This symbol, if defined, tells that fflush(NULL) does flush
2373 all pending stdio output.
2376 This variable is defined but not used by Configure.
2377 The value is a plain '' and is not useful.
2379 firstmakefile (Unix.U):
2380 This variable defines the first file searched by make. On unix,
2381 it is makefile (then Makefile). On case-insensitive systems,
2382 it might be something else. This is only used to deal with
2383 convoluted make depend tricks.
2386 This variable is defined but not used by Configure.
2387 The value is a plain '' and is not useful.
2389 fpossize (fpossize.U):
2390 This variable contains the size of a fpostype in bytes.
2392 fpostype (fpostype.U):
2393 This variable defines Fpos_t to be something like fpos_t, long,
2394 uint, or whatever type is used to declare file positions in libc.
2396 freetype (mallocsrc.U):
2397 This variable contains the return type of free(). It is usually
2398 void, but occasionally int.
2401 This variable contains the command used by Configure
2402 to copy files from the target host. Useful and available
2403 only during Perl build.
2404 The string ':' if not cross-compiling.
2407 This variable contains the full pathname to 'ar', whether or
2408 not the user has specified 'portability'. This is only used
2412 This variable contains the full pathname to 'csh', whether or
2413 not the user has specified 'portability'. This is only used
2414 in the compiled C program, and we assume that all systems which
2415 can share this executable will have the same full pathname to
2418 full_sed (Loc_sed.U):
2419 This variable contains the full pathname to 'sed', whether or
2420 not the user has specified 'portability'. This is only used
2421 in the compiled C program, and we assume that all systems which
2422 can share this executable will have the same full pathname to
2425 gccansipedantic (gccvers.U):
2426 If GNU cc (gcc) is used, this variable will enable (if set) the
2427 -ansi and -pedantic ccflags for building core files (through
2428 cflags script). (See Porting/pumpkin.pod for full description).
2430 gccosandvers (gccvers.U):
2431 If GNU cc (gcc) is used, this variable holds the operating system
2432 and version used to compile gcc. It is set to '' if not gcc,
2433 or if nothing useful can be parsed as the os version.
2435 gccversion (gccvers.U):
2436 If GNU cc (gcc) is used, this variable holds '1' or '2' to
2437 indicate whether the compiler is version 1 or 2. This is used in
2438 setting some of the default cflags. It is set to '' if not gcc.
2440 getgrent_r_proto (d_getgrent_r.U):
2441 This variable encodes the prototype of getgrent_r.
2442 It is zero if d_getgrent_r is undef, and one of the
2443 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrent_r
2446 getgrgid_r_proto (d_getgrgid_r.U):
2447 This variable encodes the prototype of getgrgid_r.
2448 It is zero if d_getgrgid_r is undef, and one of the
2449 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrgid_r
2452 getgrnam_r_proto (d_getgrnam_r.U):
2453 This variable encodes the prototype of getgrnam_r.
2454 It is zero if d_getgrnam_r is undef, and one of the
2455 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrnam_r
2458 gethostbyaddr_r_proto (d_gethostbyaddr_r.U):
2459 This variable encodes the prototype of gethostbyaddr_r.
2460 It is zero if d_gethostbyaddr_r is undef, and one of the
2461 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyaddr_r
2464 gethostbyname_r_proto (d_gethostbyname_r.U):
2465 This variable encodes the prototype of gethostbyname_r.
2466 It is zero if d_gethostbyname_r is undef, and one of the
2467 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyname_r
2470 gethostent_r_proto (d_gethostent_r.U):
2471 This variable encodes the prototype of gethostent_r.
2472 It is zero if d_gethostent_r is undef, and one of the
2473 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostent_r
2476 getlogin_r_proto (d_getlogin_r.U):
2477 This variable encodes the prototype of getlogin_r.
2478 It is zero if d_getlogin_r is undef, and one of the
2479 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getlogin_r
2482 getnetbyaddr_r_proto (d_getnetbyaddr_r.U):
2483 This variable encodes the prototype of getnetbyaddr_r.
2484 It is zero if d_getnetbyaddr_r is undef, and one of the
2485 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyaddr_r
2488 getnetbyname_r_proto (d_getnetbyname_r.U):
2489 This variable encodes the prototype of getnetbyname_r.
2490 It is zero if d_getnetbyname_r is undef, and one of the
2491 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyname_r
2494 getnetent_r_proto (d_getnetent_r.U):
2495 This variable encodes the prototype of getnetent_r.
2496 It is zero if d_getnetent_r is undef, and one of the
2497 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetent_r
2500 getprotobyname_r_proto (d_getprotobyname_r.U):
2501 This variable encodes the prototype of getprotobyname_r.
2502 It is zero if d_getprotobyname_r is undef, and one of the
2503 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobyname_r
2506 getprotobynumber_r_proto (d_getprotobynumber_r.U):
2507 This variable encodes the prototype of getprotobynumber_r.
2508 It is zero if d_getprotobynumber_r is undef, and one of the
2509 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobynumber_r
2512 getprotoent_r_proto (d_getprotoent_r.U):
2513 This variable encodes the prototype of getprotoent_r.
2514 It is zero if d_getprotoent_r is undef, and one of the
2515 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotoent_r
2518 getpwent_r_proto (d_getpwent_r.U):
2519 This variable encodes the prototype of getpwent_r.
2520 It is zero if d_getpwent_r is undef, and one of the
2521 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwent_r
2524 getpwnam_r_proto (d_getpwnam_r.U):
2525 This variable encodes the prototype of getpwnam_r.
2526 It is zero if d_getpwnam_r is undef, and one of the
2527 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwnam_r
2530 getpwuid_r_proto (d_getpwuid_r.U):
2531 This variable encodes the prototype of getpwuid_r.
2532 It is zero if d_getpwuid_r is undef, and one of the
2533 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwuid_r
2536 getservbyname_r_proto (d_getservbyname_r.U):
2537 This variable encodes the prototype of getservbyname_r.
2538 It is zero if d_getservbyname_r is undef, and one of the
2539 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyname_r
2542 getservbyport_r_proto (d_getservbyport_r.U):
2543 This variable encodes the prototype of getservbyport_r.
2544 It is zero if d_getservbyport_r is undef, and one of the
2545 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyport_r
2548 getservent_r_proto (d_getservent_r.U):
2549 This variable encodes the prototype of getservent_r.
2550 It is zero if d_getservent_r is undef, and one of the
2551 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservent_r
2554 getspnam_r_proto (d_getspnam_r.U):
2555 This variable encodes the prototype of getspnam_r.
2556 It is zero if d_getspnam_r is undef, and one of the
2557 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getspnam_r
2561 This variable contains the format string used for printing a Gid_t.
2563 gidsign (gidsign.U):
2564 This variable contains the signedness of a gidtype.
2565 1 for unsigned, -1 for signed.
2567 gidsize (gidsize.U):
2568 This variable contains the size of a gidtype in bytes.
2570 gidtype (gidtype.U):
2571 This variable defines Gid_t to be something like gid_t, int,
2572 ushort, or whatever type is used to declare the return type
2573 of getgid(). Typically, it is the type of group ids in the kernel.
2576 This variable holds the general path (space-separated) used to
2577 find libraries. It may contain directories that do not exist on
2578 this platform, libpth is the cleaned-up version.
2581 This variable is used internally by Configure to determine the
2582 full pathname (if any) of the gmake program. After Configure runs,
2583 the value is reset to a plain "gmake" and is not useful.
2585 gmtime_r_proto (d_gmtime_r.U):
2586 This variable encodes the prototype of gmtime_r.
2587 It is zero if d_gmtime_r is undef, and one of the
2588 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gmtime_r
2591 gnulibc_version (d_gnulibc.U):
2592 This variable contains the version number of the GNU C library.
2593 It is usually something like '2.2.5'. It is a plain '' if this
2594 is not the GNU C library, or if the version is unknown.
2597 This variable is used internally by Configure to determine the
2598 full pathname (if any) of the grep program. After Configure runs,
2599 the value is reset to a plain "grep" and is not useful.
2602 This variable contains a command that produces the text of the
2603 /etc/group file. This is normally "cat /etc/group", but can be
2604 "ypcat group" when NIS is used.
2605 On some systems, such as os390, there may be no equivalent
2606 command, in which case this variable is unset.
2608 groupstype (groupstype.U):
2609 This variable defines Groups_t to be something like gid_t, int,
2610 ushort, or whatever type is used for the second argument to
2611 getgroups() and setgroups(). Usually, this is the same as
2612 gidtype (gid_t), but sometimes it isn't.
2615 This variable is used internally by Configure to determine the
2616 full pathname (if any) of the gzip program. After Configure runs,
2617 the value is reset to a plain "gzip" and is not useful.
2619 h_fcntl (h_fcntl.U):
2620 This is variable gets set in various places to tell i_fcntl that
2621 <fcntl.h> should be included.
2623 h_sysfile (h_sysfile.U):
2624 This is variable gets set in various places to tell i_sys_file that
2625 <sys/file.h> should be included.
2628 Gives the type of hints used for previous answers. May be one of
2629 "default", "recommended" or "previous".
2632 This variable contains a command that produces the text of the
2633 /etc/hosts file. This is normally "cat /etc/hosts", but can be
2634 "ypcat hosts" when NIS is used.
2635 On some systems, such as os390, there may be no equivalent
2636 command, in which case this variable is unset.
2638 html1dir (html1dir.U):
2639 This variable contains the name of the directory in which html
2640 source pages are to be put. This directory is for pages
2641 that describe whole programs, not libraries or modules. It
2642 is intended to correspond roughly to section 1 of the Unix
2645 html1direxp (html1dir.U):
2646 This variable is the same as the html1dir variable, but is filename
2647 expanded at configuration time, for convenient use in makefiles.
2649 html3dir (html3dir.U):
2650 This variable contains the name of the directory in which html
2651 source pages are to be put. This directory is for pages
2652 that describe libraries or modules. It is intended to
2653 correspond roughly to section 3 of the Unix manuals.
2655 html3direxp (html3dir.U):
2656 This variable is the same as the html3dir variable, but is filename
2657 expanded at configuration time, for convenient use in makefiles.
2660 This variable is the size of an I16 in bytes.
2663 This variable contains the C type used for Perl's I16.
2666 This variable is the size of an I32 in bytes.
2669 This variable contains the C type used for Perl's I32.
2672 This variable is the size of an I64 in bytes.
2675 This variable contains the C type used for Perl's I64.
2678 This variable is the size of an I8 in bytes.
2681 This variable contains the C type used for Perl's I8.
2683 i_arpainet (i_arpainet.U):
2684 This variable conditionally defines the I_ARPA_INET symbol,
2685 and indicates whether a C program should include <arpa/inet.h>.
2687 i_bsdioctl (i_sysioctl.U):
2688 This variable conditionally defines the I_SYS_BSDIOCTL symbol, which
2689 indicates to the C program that <sys/bsdioctl.h> exists and should
2692 i_crypt (i_crypt.U):
2693 This variable conditionally defines the I_CRYPT symbol, and indicates
2694 whether a C program should include <crypt.h>.
2697 This variable conditionally defines the I_DB symbol, and indicates
2698 whether a C program may include Berkeley's DB include file <db.h>.
2701 This variable conditionally defines the I_DBM symbol, which
2702 indicates to the C program that <dbm.h> exists and should
2705 i_dirent (i_dirent.U):
2706 This variable conditionally defines I_DIRENT, which indicates
2707 to the C program that it should include <dirent.h>.
2710 This variable conditionally defines the I_DLD symbol, which
2711 indicates to the C program that <dld.h> (GNU dynamic loading)
2712 exists and should be included.
2714 i_dlfcn (i_dlfcn.U):
2715 This variable conditionally defines the I_DLFCN symbol, which
2716 indicates to the C program that <dlfcn.h> exists and should
2719 i_fcntl (i_fcntl.U):
2720 This variable controls the value of I_FCNTL (which tells
2721 the C program to include <fcntl.h>).
2723 i_float (i_float.U):
2724 This variable conditionally defines the I_FLOAT symbol, and indicates
2725 whether a C program may include <float.h> to get symbols like DBL_MAX
2726 or DBL_MIN, i.e. machine dependent floating point values.
2729 This variable conditionally defines the I_FP symbol, and indicates
2730 whether a C program should include <fp.h>.
2732 i_fp_class (i_fp_class.U):
2733 This variable conditionally defines the I_FP_CLASS symbol, and indicates
2734 whether a C program should include <fp_class.h>.
2737 This variable conditionally defines the I_GDBM symbol, which
2738 indicates to the C program that <gdbm.h> exists and should
2742 This variable conditionally defines the I_GRP symbol, and indicates
2743 whether a C program should include <grp.h>.
2745 i_ieeefp (i_ieeefp.U):
2746 This variable conditionally defines the I_IEEEFP symbol, and indicates
2747 whether a C program should include <ieeefp.h>.
2749 i_inttypes (i_inttypes.U):
2750 This variable conditionally defines the I_INTTYPES symbol,
2751 and indicates whether a C program should include <inttypes.h>.
2753 i_langinfo (i_langinfo.U):
2754 This variable conditionally defines the I_LANGINFO symbol,
2755 and indicates whether a C program should include <langinfo.h>.
2757 i_libutil (i_libutil.U):
2758 This variable conditionally defines the I_LIBUTIL symbol, and indicates
2759 whether a C program should include <libutil.h>.
2761 i_limits (i_limits.U):
2762 This variable conditionally defines the I_LIMITS symbol, and indicates
2763 whether a C program may include <limits.h> to get symbols like WORD_BIT
2766 i_locale (i_locale.U):
2767 This variable conditionally defines the I_LOCALE symbol,
2768 and indicates whether a C program should include <locale.h>.
2770 i_machcthr (i_machcthr.U):
2771 This variable conditionally defines the I_MACH_CTHREADS symbol,
2772 and indicates whether a C program should include <mach/cthreads.h>.
2774 i_malloc (i_malloc.U):
2775 This variable conditionally defines the I_MALLOC symbol, and indicates
2776 whether a C program should include <malloc.h>.
2779 This variable conditionally defines the I_MATH symbol, and indicates
2780 whether a C program may include <math.h>.
2782 i_memory (i_memory.U):
2783 This variable conditionally defines the I_MEMORY symbol, and indicates
2784 whether a C program should include <memory.h>.
2786 i_mntent (i_mntent.U):
2787 This variable conditionally defines the I_MNTENT symbol, and indicates
2788 whether a C program should include <mntent.h>.
2791 This variable conditionally defines the I_NDBM symbol, which
2792 indicates to the C program that <ndbm.h> exists and should
2795 i_netdb (i_netdb.U):
2796 This variable conditionally defines the I_NETDB symbol, and indicates
2797 whether a C program should include <netdb.h>.
2799 i_neterrno (i_neterrno.U):
2800 This variable conditionally defines the I_NET_ERRNO symbol, which
2801 indicates to the C program that <net/errno.h> exists and should
2804 i_netinettcp (i_netinettcp.U):
2805 This variable conditionally defines the I_NETINET_TCP symbol,
2806 and indicates whether a C program should include <netinet/tcp.h>.
2809 This variable conditionally defines I_NETINET_IN, which indicates
2810 to the C program that it should include <netinet/in.h>. Otherwise,
2811 you may try <sys/in.h>.
2814 This variable conditionally defines the I_POLL symbol, and indicates
2815 whether a C program should include <poll.h>.
2818 This variable conditionally defines the I_PROT symbol, and indicates
2819 whether a C program should include <prot.h>.
2821 i_pthread (i_pthread.U):
2822 This variable conditionally defines the I_PTHREAD symbol,
2823 and indicates whether a C program should include <pthread.h>.
2826 This variable conditionally defines I_PWD, which indicates
2827 to the C program that it should include <pwd.h>.
2829 i_rpcsvcdbm (i_dbm.U):
2830 This variable conditionally defines the I_RPCSVC_DBM symbol, which
2831 indicates to the C program that <rpcsvc/dbm.h> exists and should
2832 be included. Some System V systems might need this instead of <dbm.h>.
2835 This variable conditionally defines the I_SFIO symbol,
2836 and indicates whether a C program should include <sfio.h>.
2838 i_sgtty (i_termio.U):
2839 This variable conditionally defines the I_SGTTY symbol, which
2840 indicates to the C program that it should include <sgtty.h> rather
2843 i_shadow (i_shadow.U):
2844 This variable conditionally defines the I_SHADOW symbol, and indicates
2845 whether a C program should include <shadow.h>.
2847 i_socks (i_socks.U):
2848 This variable conditionally defines the I_SOCKS symbol, and indicates
2849 whether a C program should include <socks.h>.
2851 i_stdarg (i_varhdr.U):
2852 This variable conditionally defines the I_STDARG symbol, which
2853 indicates to the C program that <stdarg.h> exists and should
2856 i_stddef (i_stddef.U):
2857 This variable conditionally defines the I_STDDEF symbol, which
2858 indicates to the C program that <stddef.h> exists and should
2861 i_stdlib (i_stdlib.U):
2862 This variable conditionally defines the I_STDLIB symbol, which
2863 indicates to the C program that <stdlib.h> exists and should
2866 i_string (i_string.U):
2867 This variable conditionally defines the I_STRING symbol, which
2868 indicates that <string.h> should be included rather than <strings.h>.
2870 i_sunmath (i_sunmath.U):
2871 This variable conditionally defines the I_SUNMATH symbol, and indicates
2872 whether a C program should include <sunmath.h>.
2874 i_sysaccess (i_sysaccess.U):
2875 This variable conditionally defines the I_SYS_ACCESS symbol,
2876 and indicates whether a C program should include <sys/access.h>.
2878 i_sysdir (i_sysdir.U):
2879 This variable conditionally defines the I_SYS_DIR symbol, and indicates
2880 whether a C program should include <sys/dir.h>.
2882 i_sysfile (i_sysfile.U):
2883 This variable conditionally defines the I_SYS_FILE symbol, and indicates
2884 whether a C program should include <sys/file.h> to get R_OK and friends.
2886 i_sysfilio (i_sysioctl.U):
2887 This variable conditionally defines the I_SYS_FILIO symbol, which
2888 indicates to the C program that <sys/filio.h> exists and should
2889 be included in preference to <sys/ioctl.h>.
2892 This variable conditionally defines I_SYS_IN, which indicates
2893 to the C program that it should include <sys/in.h> instead of
2896 i_sysioctl (i_sysioctl.U):
2897 This variable conditionally defines the I_SYS_IOCTL symbol, which
2898 indicates to the C program that <sys/ioctl.h> exists and should
2901 i_syslog (i_syslog.U):
2902 This variable conditionally defines the I_SYSLOG symbol,
2903 and indicates whether a C program should include <syslog.h>.
2905 i_sysmman (i_sysmman.U):
2906 This variable conditionally defines the I_SYS_MMAN symbol, and
2907 indicates whether a C program should include <sys/mman.h>.
2909 i_sysmode (i_sysmode.U):
2910 This variable conditionally defines the I_SYSMODE symbol,
2911 and indicates whether a C program should include <sys/mode.h>.
2913 i_sysmount (i_sysmount.U):
2914 This variable conditionally defines the I_SYSMOUNT symbol,
2915 and indicates whether a C program should include <sys/mount.h>.
2917 i_sysndir (i_sysndir.U):
2918 This variable conditionally defines the I_SYS_NDIR symbol, and indicates
2919 whether a C program should include <sys/ndir.h>.
2921 i_sysparam (i_sysparam.U):
2922 This variable conditionally defines the I_SYS_PARAM symbol, and indicates
2923 whether a C program should include <sys/param.h>.
2925 i_sysresrc (i_sysresrc.U):
2926 This variable conditionally defines the I_SYS_RESOURCE symbol,
2927 and indicates whether a C program should include <sys/resource.h>.
2929 i_syssecrt (i_syssecrt.U):
2930 This variable conditionally defines the I_SYS_SECURITY symbol,
2931 and indicates whether a C program should include <sys/security.h>.
2933 i_sysselct (i_sysselct.U):
2934 This variable conditionally defines I_SYS_SELECT, which indicates
2935 to the C program that it should include <sys/select.h> in order to
2936 get the definition of struct timeval.
2938 i_syssockio (i_sysioctl.U):
2939 This variable conditionally defines I_SYS_SOCKIO to indicate to the
2940 C program that socket ioctl codes may be found in <sys/sockio.h>
2941 instead of <sys/ioctl.h>.
2943 i_sysstat (i_sysstat.U):
2944 This variable conditionally defines the I_SYS_STAT symbol,
2945 and indicates whether a C program should include <sys/stat.h>.
2947 i_sysstatfs (i_sysstatfs.U):
2948 This variable conditionally defines the I_SYSSTATFS symbol,
2949 and indicates whether a C program should include <sys/statfs.h>.
2951 i_sysstatvfs (i_sysstatvfs.U):
2952 This variable conditionally defines the I_SYSSTATVFS symbol,
2953 and indicates whether a C program should include <sys/statvfs.h>.
2955 i_systime (i_time.U):
2956 This variable conditionally defines I_SYS_TIME, which indicates
2957 to the C program that it should include <sys/time.h>.
2959 i_systimek (i_time.U):
2960 This variable conditionally defines I_SYS_TIME_KERNEL, which
2961 indicates to the C program that it should include <sys/time.h>
2962 with KERNEL defined.
2964 i_systimes (i_systimes.U):
2965 This variable conditionally defines the I_SYS_TIMES symbol, and indicates
2966 whether a C program should include <sys/times.h>.
2968 i_systypes (i_systypes.U):
2969 This variable conditionally defines the I_SYS_TYPES symbol,
2970 and indicates whether a C program should include <sys/types.h>.
2972 i_sysuio (i_sysuio.U):
2973 This variable conditionally defines the I_SYSUIO symbol, and indicates
2974 whether a C program should include <sys/uio.h>.
2976 i_sysun (i_sysun.U):
2977 This variable conditionally defines I_SYS_UN, which indicates
2978 to the C program that it should include <sys/un.h> to get UNIX
2979 domain socket definitions.
2981 i_sysutsname (i_sysutsname.U):
2982 This variable conditionally defines the I_SYSUTSNAME symbol,
2983 and indicates whether a C program should include <sys/utsname.h>.
2985 i_sysvfs (i_sysvfs.U):
2986 This variable conditionally defines the I_SYSVFS symbol,
2987 and indicates whether a C program should include <sys/vfs.h>.
2989 i_syswait (i_syswait.U):
2990 This variable conditionally defines I_SYS_WAIT, which indicates
2991 to the C program that it should include <sys/wait.h>.
2993 i_termio (i_termio.U):
2994 This variable conditionally defines the I_TERMIO symbol, which
2995 indicates to the C program that it should include <termio.h> rather
2998 i_termios (i_termio.U):
2999 This variable conditionally defines the I_TERMIOS symbol, which
3000 indicates to the C program that the POSIX <termios.h> file is
3004 This variable conditionally defines I_TIME, which indicates
3005 to the C program that it should include <time.h>.
3007 i_unistd (i_unistd.U):
3008 This variable conditionally defines the I_UNISTD symbol, and indicates
3009 whether a C program should include <unistd.h>.
3011 i_ustat (i_ustat.U):
3012 This variable conditionally defines the I_USTAT symbol, and indicates
3013 whether a C program should include <ustat.h>.
3015 i_utime (i_utime.U):
3016 This variable conditionally defines the I_UTIME symbol, and indicates
3017 whether a C program should include <utime.h>.
3019 i_values (i_values.U):
3020 This variable conditionally defines the I_VALUES symbol, and indicates
3021 whether a C program may include <values.h> to get symbols like MAXLONG
3024 i_varargs (i_varhdr.U):
3025 This variable conditionally defines I_VARARGS, which indicates
3026 to the C program that it should include <varargs.h>.
3028 i_varhdr (i_varhdr.U):
3029 Contains the name of the header to be included to get va_dcl definition.
3030 Typically one of varargs.h or stdarg.h.
3032 i_vfork (i_vfork.U):
3033 This variable conditionally defines the I_VFORK symbol, and indicates
3034 whether a C program should include vfork.h.
3036 ignore_versioned_solibs (libs.U):
3037 This variable should be non-empty if non-versioned shared
3038 libraries (libfoo.so.x.y) are to be ignored (because they
3039 cannot be linked against).
3041 inc_version_list (inc_version_list.U):
3042 This variable specifies the list of subdirectories in over
3043 which perl.c:incpush() and lib/lib.pm will automatically
3044 search when adding directories to @INC. The elements in
3045 the list are separated by spaces. This is only useful
3046 if you have a perl library directory tree structured like the
3047 default one. See INSTALL for how this works. The versioned
3048 site_perl directory was introduced in 5.005, so that is the
3049 lowest possible value.
3051 inc_version_list_init (inc_version_list.U):
3052 This variable holds the same list as inc_version_list, but
3053 each item is enclosed in double quotes and separated by commas,
3054 suitable for use in the PERL_INC_VERSION_LIST initialization.
3057 This variable must preceed the normal include path to get hte
3058 right one, as in "$incpath/usr/include" or "$incpath/usr/lib".
3059 Value can be "" or "/bsd43" on mips.
3062 This variable is defined but not used by Configure.
3063 The value is a plain '' and is not useful.
3065 installarchlib (archlib.U):
3066 This variable is really the same as archlibexp but may differ on
3067 those systems using AFS. For extra portability, only this variable
3068 should be used in makefiles.
3071 This variable is the same as binexp unless AFS is running in which case
3072 the user is explicitely prompted for it. This variable should always
3073 be used in your makefiles for maximum portability.
3075 installhtml1dir (html1dir.U):
3076 This variable is really the same as html1direxp, unless you are
3077 using a different installprefix. For extra portability, you
3078 should only use this variable within your makefiles.
3080 installhtml3dir (html3dir.U):
3081 This variable is really the same as html3direxp, unless you are
3082 using a different installprefix. For extra portability, you
3083 should only use this variable within your makefiles.
3085 installman1dir (man1dir.U):
3086 This variable is really the same as man1direxp, unless you are using
3087 AFS in which case it points to the read/write location whereas
3088 man1direxp only points to the read-only access location. For extra
3089 portability, you should only use this variable within your makefiles.
3091 installman3dir (man3dir.U):
3092 This variable is really the same as man3direxp, unless you are using
3093 AFS in which case it points to the read/write location whereas
3094 man3direxp only points to the read-only access location. For extra
3095 portability, you should only use this variable within your makefiles.
3097 installprefix (installprefix.U):
3098 This variable holds the name of the directory below which
3099 "make install" will install the package. For most users, this
3100 is the same as prefix. However, it is useful for
3101 installing the software into a different (usually temporary)
3102 location after which it can be bundled up and moved somehow
3103 to the final location specified by prefix.
3105 installprefixexp (installprefix.U):
3106 This variable holds the full absolute path of installprefix
3107 with all ~-expansion done.
3109 installprivlib (privlib.U):
3110 This variable is really the same as privlibexp but may differ on
3111 those systems using AFS. For extra portability, only this variable
3112 should be used in makefiles.
3114 installscript (scriptdir.U):
3115 This variable is usually the same as scriptdirexp, unless you are on
3116 a system running AFS, in which case they may differ slightly. You
3117 should always use this variable within your makefiles for portability.
3119 installsitearch (sitearch.U):
3120 This variable is really the same as sitearchexp but may differ on
3121 those systems using AFS. For extra portability, only this variable
3122 should be used in makefiles.
3124 installsitebin (sitebin.U):
3125 This variable is usually the same as sitebinexp, unless you are on
3126 a system running AFS, in which case they may differ slightly. You
3127 should always use this variable within your makefiles for portability.
3129 installsitehtml1dir (sitehtml1dir.U):
3130 This variable is really the same as sitehtml1direxp, unless you are using
3131 AFS in which case it points to the read/write location whereas
3132 html1direxp only points to the read-only access location. For extra
3133 portability, you should only use this variable within your makefiles.
3135 installsitehtml3dir (sitehtml3dir.U):
3136 This variable is really the same as sitehtml3direxp, unless you are using
3137 AFS in which case it points to the read/write location whereas
3138 html3direxp only points to the read-only access location. For extra
3139 portability, you should only use this variable within your makefiles.
3141 installsitelib (sitelib.U):
3142 This variable is really the same as sitelibexp but may differ on
3143 those systems using AFS. For extra portability, only this variable
3144 should be used in makefiles.
3146 installsiteman1dir (siteman1dir.U):
3147 This variable is really the same as siteman1direxp, unless you are using
3148 AFS in which case it points to the read/write location whereas
3149 man1direxp only points to the read-only access location. For extra
3150 portability, you should only use this variable within your makefiles.
3152 installsiteman3dir (siteman3dir.U):
3153 This variable is really the same as siteman3direxp, unless you are using
3154 AFS in which case it points to the read/write location whereas
3155 man3direxp only points to the read-only access location. For extra
3156 portability, you should only use this variable within your makefiles.
3158 installsitescript (sitescript.U):
3159 This variable is usually the same as sitescriptexp, unless you are on
3160 a system running AFS, in which case they may differ slightly. You
3161 should always use this variable within your makefiles for portability.
3163 installstyle (installstyle.U):
3164 This variable describes the "style" of the perl installation.
3165 This is intended to be useful for tools that need to
3166 manipulate entire perl distributions. Perl itself doesn't use
3167 this to find its libraries -- the library directories are
3168 stored directly in Config.pm. Currently, there are only two
3169 styles: "lib" and "lib/perl5". The default library locations
3170 (e.g. privlib, sitelib) are either $prefix/lib or
3171 $prefix/lib/perl5. The former is useful if $prefix is a
3172 directory dedicated to perl (e.g. /opt/perl), while the latter
3173 is useful if $prefix is shared by many packages, e.g. if
3176 Unfortunately, while this "style" variable is used to set
3177 defaults for all three directory hierarchies (core, vendor, and
3178 site), there is no guarantee that the same style is actually
3179 appropriate for all those directories. For example, $prefix
3180 might be /opt/perl, but $siteprefix might be /usr/local.
3181 (Perhaps, in retrospect, the "lib" style should never have been
3182 supported, but it did seem like a nice idea at the time.)
3184 The situation is even less clear for tools such as MakeMaker
3185 that can be used to install additional modules into
3186 non-standard places. For example, if a user intends to install
3187 a module into a private directory (perhaps by setting PREFIX on
3188 the Makefile.PL command line), then there is no reason to
3189 assume that the Configure-time $installstyle setting will be
3190 relevant for that PREFIX.
3192 This may later be extended to include other information, so
3193 be careful with pattern-matching on the results.
3195 For compatibility with perl5.005 and earlier, the default
3196 setting is based on whether or not $prefix contains the string
3199 installusrbinperl (instubperl.U):
3200 This variable tells whether Perl should be installed also as
3201 /usr/bin/perl in addition to
3204 installvendorarch (vendorarch.U):
3205 This variable is really the same as vendorarchexp but may differ on
3206 those systems using AFS. For extra portability, only this variable
3207 should be used in makefiles.
3209 installvendorbin (vendorbin.U):
3210 This variable is really the same as vendorbinexp but may differ on
3211 those systems using AFS. For extra portability, only this variable
3212 should be used in makefiles.
3214 installvendorhtml1dir (vendorhtml1dir.U):
3215 This variable is really the same as vendorhtml1direxp but may differ on
3216 those systems using AFS. For extra portability, only this variable
3217 should be used in makefiles.
3219 installvendorhtml3dir (vendorhtml3dir.U):
3220 This variable is really the same as vendorhtml3direxp but may differ on
3221 those systems using AFS. For extra portability, only this variable
3222 should be used in makefiles.
3224 installvendorlib (vendorlib.U):
3225 This variable is really the same as vendorlibexp but may differ on
3226 those systems using AFS. For extra portability, only this variable
3227 should be used in makefiles.
3229 installvendorman1dir (vendorman1dir.U):
3230 This variable is really the same as vendorman1direxp but may differ on
3231 those systems using AFS. For extra portability, only this variable
3232 should be used in makefiles.
3234 installvendorman3dir (vendorman3dir.U):
3235 This variable is really the same as vendorman3direxp but may differ on
3236 those systems using AFS. For extra portability, only this variable
3237 should be used in makefiles.
3239 installvendorscript (vendorscript.U):
3240 This variable is really the same as vendorscriptexp but may differ on
3241 those systems using AFS. For extra portability, only this variable
3242 should be used in makefiles.
3244 intsize (intsize.U):
3245 This variable contains the value of the INTSIZE symbol, which
3246 indicates to the C program how many bytes there are in an int.
3248 issymlink (issymlink.U):
3249 This variable holds the test command to test for a symbolic link
3250 (if they are supported). Typical values include 'test -h' and
3253 ivdformat (perlxvf.U):
3254 This variable contains the format string used for printing
3255 a Perl IV as a signed decimal integer.
3258 This variable is the size of an IV in bytes.
3261 This variable contains the C type used for Perl's IV.
3263 known_extensions (Extensions.U):
3264 This variable holds a list of all XS extensions included in
3268 This variable is defined but not used by Configure.
3269 The value is a plain '' and is not useful.
3272 This variable indicates the program to be used to link
3273 libraries for dynamic loading. On some systems, it is 'ld'.
3274 On ELF systems, it should be $cc. Mostly, we'll try to respect
3275 the hint file setting.
3277 lddlflags (dlsrc.U):
3278 This variable contains any special flags that might need to be
3279 passed to $ld to create a shared library suitable for dynamic
3280 loading. It is up to the makefile to use it. For hpux, it
3281 should be '-b'. For sunos 4.1, it is empty.
3283 ldflags (ccflags.U):
3284 This variable contains any additional C loader flags desired by
3285 the user. It is up to the Makefile to use this.
3287 ldflags_uselargefiles (uselfs.U):
3288 This variable contains the loader flags needed by large file builds
3289 and added to ldflags by hints files.
3291 ldlibpthname (libperl.U):
3292 This variable holds the name of the shared library
3293 search path, often LD_LIBRARY_PATH. To get an empty
3294 string, the hints file must set this to 'none'.
3297 This variable is used internally by Configure to determine the
3298 full pathname (if any) of the less program. After Configure runs,
3299 the value is reset to a plain "less" and is not useful.
3302 This is an old synonym for _a.
3305 This variable contains the location of the C library.
3307 libperl (libperl.U):
3308 The perl executable is obtained by linking perlmain.c with
3309 libperl, any static extensions (usually just DynaLoader),
3310 and any other libraries needed on this system. libperl
3311 is usually libperl.a, but can also be libperl.so.xxx if
3312 the user wishes to build a perl executable with a shared
3316 This variable holds the general path (space-separated) used to find
3317 libraries. It is intended to be used by other units.
3320 This variable holds the additional libraries we want to use.
3321 It is up to the Makefile to deal with it. The list can be empty.
3324 This variable holds the directory names aka dirnames of the libraries
3325 we found and accepted, duplicates are removed.
3328 This variable holds the filenames aka basenames of the libraries
3329 we found and accepted.
3332 This variable holds the full pathnames of the libraries
3333 we found and accepted.
3336 This variable holds the directory names probed for libraries.
3338 libswanted (Myinit.U):
3339 This variable holds a list of all the libraries we want to
3340 search. The order is chosen to pick up the c library
3341 ahead of ucb or bsd libraries for SVR4.
3343 libswanted_uselargefiles (uselfs.U):
3344 This variable contains the libraries needed by large file builds
3345 and added to ldflags by hints files. It is a space separated list
3346 of the library names without the "lib" prefix or any suffix, just
3350 This variable is defined but not used by Configure.
3351 The value is a plain '' and is not useful.
3354 This variable is defined but not used by Configure.
3355 The value is a plain '' and is not useful.
3357 lkflags (ccflags.U):
3358 This variable contains any additional C partial linker flags desired by
3359 the user. It is up to the Makefile to use this.
3362 This variable is used internally by Configure to determine the
3363 full pathname (if any) of the ln program. After Configure runs,
3364 the value is reset to a plain "ln" and is not useful.
3367 This variable holds the name of the command to make
3368 symbolic links (if they are supported). It can be used
3369 in the Makefile. It is either 'ln -s' or 'ln'
3371 localtime_r_proto (d_localtime_r.U):
3372 This variable encodes the prototype of localtime_r.
3373 It is zero if d_localtime_r is undef, and one of the
3374 REENTRANT_PROTO_T_ABC macros of reentr.h if d_localtime_r
3377 locincpth (ccflags.U):
3378 This variable contains a list of additional directories to be
3379 searched by the compiler. The appropriate '-I' directives will
3380 be added to ccflags. This is intended to simplify setting
3381 local directories from the Configure command line.
3382 It's not much, but it parallels the loclibpth stuff in libpth.U.
3384 loclibpth (libpth.U):
3385 This variable holds the paths (space-separated) used to find local
3386 libraries. It is prepended to libpth, and is intended to be easily
3387 set from the command line.
3389 longdblsize (d_longdbl.U):
3390 This variable contains the value of the LONG_DOUBLESIZE symbol, which
3391 indicates to the C program how many bytes there are in a long double,
3392 if this system supports long doubles.
3394 longlongsize (d_longlong.U):
3395 This variable contains the value of the LONGLONGSIZE symbol, which
3396 indicates to the C program how many bytes there are in a long long,
3397 if this system supports long long.
3399 longsize (intsize.U):
3400 This variable contains the value of the LONGSIZE symbol, which
3401 indicates to the C program how many bytes there are in a long.
3404 This variable is defined but not used by Configure.
3405 The value is a plain '' and is not useful.
3408 This variable is defined but not used by Configure.
3409 The value is a plain '' and is not useful.
3412 This variable is used internally by Configure to determine the
3413 full pathname (if any) of the ls program. After Configure runs,
3414 the value is reset to a plain "ls" and is not useful.
3416 lseeksize (lseektype.U):
3417 This variable defines lseektype to be something like off_t, long,
3418 or whatever type is used to declare lseek offset's type in the
3419 kernel (which also appears to be lseek's return type).
3421 lseektype (lseektype.U):
3422 This variable defines lseektype to be something like off_t, long,
3423 or whatever type is used to declare lseek offset's type in the
3424 kernel (which also appears to be lseek's return type).
3427 This variable is defined but not used by Configure.
3428 The value is a plain '' and is not useful.
3431 This variable is defined but not used by Configure.
3432 The value is a plain '' and is not useful.
3435 This variable is used internally by Configure to determine the
3436 full pathname (if any) of the make program. After Configure runs,
3437 the value is reset to a plain "make" and is not useful.
3439 make_set_make (make.U):
3440 Some versions of 'make' set the variable MAKE. Others do not.
3441 This variable contains the string to be included in Makefile.SH
3442 so that MAKE is set if needed, and not if not needed.
3443 Possible values are:
3445 make_set_make='#' # If your make program handles this for you,
3447 make_set_make="MAKE=$make" # if it doesn't.
3449 This uses a comment character to distinguish a
3450 'set' value (from a previous config.sh or Configure '-D' option)
3451 from an uncomputed value.
3453 mallocobj (mallocsrc.U):
3454 This variable contains the name of the malloc.o that this package
3455 generates, if that malloc.o is preferred over the system malloc.
3456 Otherwise the value is null. This variable is intended for generating
3457 Makefiles. See mallocsrc.
3459 mallocsrc (mallocsrc.U):
3460 This variable contains the name of the malloc.c that comes with
3461 the package, if that malloc.c is preferred over the system malloc.
3462 Otherwise the value is null. This variable is intended for generating
3465 malloctype (mallocsrc.U):
3466 This variable contains the kind of ptr returned by malloc and realloc.
3468 man1dir (man1dir.U):
3469 This variable contains the name of the directory in which manual
3470 source pages are to be put. It is the responsibility of the
3471 Makefile.SH to get the value of this into the proper command.
3472 You must be prepared to do the ~name expansion yourself.
3474 man1direxp (man1dir.U):
3475 This variable is the same as the man1dir variable, but is filename
3476 expanded at configuration time, for convenient use in makefiles.
3478 man1ext (man1dir.U):
3479 This variable contains the extension that the manual page should
3480 have: one of 'n', 'l', or '1'. The Makefile must supply the '.'.
3483 man3dir (man3dir.U):
3484 This variable contains the name of the directory in which manual
3485 source pages are to be put. It is the responsibility of the
3486 Makefile.SH to get the value of this into the proper command.
3487 You must be prepared to do the ~name expansion yourself.
3489 man3direxp (man3dir.U):
3490 This variable is the same as the man3dir variable, but is filename
3491 expanded at configuration time, for convenient use in makefiles.
3493 man3ext (man3dir.U):
3494 This variable contains the extension that the manual page should
3495 have: one of 'n', 'l', or '3'. The Makefile must supply the '.'.
3499 This variable is used internally by Configure to determine the
3500 full pathname (if any) of the Mcc program. After Configure runs,
3501 the value is reset to a plain "Mcc" and is not useful.
3503 mips_type (usrinc.U):
3504 This variable holds the environment type for the mips system.
3505 Possible values are "BSD 4.3" and "System V".
3507 mistrustnm (Csym.U):
3508 This variable can be used to establish a fallthrough for the cases
3509 where nm fails to find a symbol. If usenm is false or usenm is true
3510 and mistrustnm is false, this variable has no effect. If usenm is true
3511 and mistrustnm is "compile", a test program will be compiled to try to
3512 find any symbol that can't be located via nm lookup. If mistrustnm is
3513 "run", the test program will be run as well as being compiled.
3516 This variable is used internally by Configure to determine the
3517 full pathname (if any) of the mkdir program. After Configure runs,
3518 the value is reset to a plain "mkdir" and is not useful.
3520 mmaptype (d_mmap.U):
3521 This symbol contains the type of pointer returned by mmap()
3522 (and simultaneously the type of the first argument).
3523 It can be 'void *' or 'caddr_t'.
3525 modetype (modetype.U):
3526 This variable defines modetype to be something like mode_t,
3527 int, unsigned short, or whatever type is used to declare file
3528 modes for system calls.
3531 This variable is used internally by Configure to determine the
3532 full pathname (if any) of the more program. After Configure runs,
3533 the value is reset to a plain "more" and is not useful.
3535 multiarch (multiarch.U):
3536 This variable conditionally defines the MULTIARCH symbol
3537 which signifies the presence of multiplatform files.
3538 This is normally set by hints files.
3541 This variable is defined but not used by Configure.
3542 The value is a plain '' and is not useful.
3544 myarchname (archname.U):
3545 This variable holds the architecture name computed by Configure in
3546 a previous run. It is not intended to be perused by any user and
3547 should never be set in a hint file.
3549 mydomain (myhostname.U):
3550 This variable contains the eventual value of the MYDOMAIN symbol,
3551 which is the domain of the host the program is going to run on.
3552 The domain must be appended to myhostname to form a complete host name.
3553 The dot comes with mydomain, and need not be supplied by the program.
3555 myhostname (myhostname.U):
3556 This variable contains the eventual value of the MYHOSTNAME symbol,
3557 which is the name of the host the program is going to run on.
3558 The domain is not kept with hostname, but must be gotten from mydomain.
3559 The dot comes with mydomain, and need not be supplied by the program.
3561 myuname (Oldconfig.U):
3562 The output of 'uname -a' if available, otherwise the hostname. On Xenix,
3563 pseudo variables assignments in the output are stripped, thank you. The
3564 whole thing is then lower-cased.
3567 This variable contains the '-n' flag if that is what causes the echo
3568 command to suppress newline. Otherwise it is null. Correct usage is
3569 $echo $n "prompt for a question: $c".
3571 need_va_copy (need_va_copy.U):
3572 This symbol, if defined, indicates that the system stores
3573 the variable argument list datatype, va_list, in a format
3574 that cannot be copied by simple assignment, so that some
3575 other means must be used when copying is required.
3576 As such systems vary in their provision (or non-provision)
3577 of copying mechanisms, handy.h defines a platform-
3578 independent macro, Perl_va_copy(src, dst), to do the job.
3580 netdb_hlen_type (netdbtype.U):
3581 This variable holds the type used for the 2nd argument to
3582 gethostbyaddr(). Usually, this is int or size_t or unsigned.
3583 This is only useful if you have gethostbyaddr(), naturally.
3585 netdb_host_type (netdbtype.U):
3586 This variable holds the type used for the 1st argument to
3587 gethostbyaddr(). Usually, this is char * or void *, possibly
3588 with or without a const prefix.
3589 This is only useful if you have gethostbyaddr(), naturally.
3591 netdb_name_type (netdbtype.U):
3592 This variable holds the type used for the argument to
3593 gethostbyname(). Usually, this is char * or const char *.
3594 This is only useful if you have gethostbyname(), naturally.
3596 netdb_net_type (netdbtype.U):
3597 This variable holds the type used for the 1st argument to
3598 getnetbyaddr(). Usually, this is int or long.
3599 This is only useful if you have getnetbyaddr(), naturally.
3602 This variable is used internally by Configure to determine the
3603 full pathname (if any) of the nm program. After Configure runs,
3604 the value is reset to a plain "nm" and is not useful.
3607 This variable holds the options that may be necessary for nm.
3609 nm_so_opt (usenm.U):
3610 This variable holds the options that may be necessary for nm
3611 to work on a shared library but that can not be used on an
3612 archive library. Currently, this is only used by Linux, where
3613 nm --dynamic is *required* to get symbols from an ELF library which
3614 has been stripped, but nm --dynamic is *fatal* on an archive library.
3615 Maybe Linux should just always set usenm=false.
3617 nonxs_ext (Extensions.U):
3618 This variable holds a list of all non-xs extensions included
3619 in the package. All of them will be built.
3622 This variable is used internally by Configure to determine the
3623 full pathname (if any) of the nroff program. After Configure runs,
3624 the value is reset to a plain "nroff" and is not useful.
3626 nv_preserves_uv_bits (perlxv.U):
3627 This variable indicates how many of bits type uvtype
3628 a variable nvtype can preserve.
3630 nveformat (perlxvf.U):
3631 This variable contains the format string used for printing
3632 a Perl NV using %e-ish floating point format.
3634 nvEUformat (perlxvf.U):
3635 This variable contains the format string used for printing
3636 a Perl NV using %E-ish floating point format.
3638 nvfformat (perlxvf.U):
3639 This variable confains the format string used for printing
3640 a Perl NV using %f-ish floating point format.
3642 nvFUformat (perlxvf.U):
3643 This variable confains the format string used for printing
3644 a Perl NV using %F-ish floating point format.
3646 nvgformat (perlxvf.U):
3647 This variable contains the format string used for printing
3648 a Perl NV using %g-ish floating point format.
3650 nvGUformat (perlxvf.U):
3651 This variable contains the format string used for printing
3652 a Perl NV using %G-ish floating point format.
3655 This variable is the size of an NV in bytes.
3658 This variable contains the C type used for Perl's NV.
3660 o_nonblock (nblock_io.U):
3661 This variable bears the symbol value to be used during open() or fcntl()
3662 to turn on non-blocking I/O for a file descriptor. If you wish to switch
3663 between blocking and non-blocking, you may try ioctl(FIOSNBIO) instead,
3664 but that is only supported by some devices.
3667 This is an old synonym for _o.
3669 old_pthread_create_joinable (d_pthrattrj.U):
3670 This variable defines the constant to use for creating joinable
3671 (aka undetached) pthreads. Unused if pthread.h defines
3672 PTHREAD_CREATE_JOINABLE. If used, possible values are
3673 PTHREAD_CREATE_UNDETACHED and __UNDETACHED.
3675 optimize (ccflags.U):
3676 This variable contains any optimizer/debugger flag that should be used.
3677 It is up to the Makefile to use it.
3679 orderlib (orderlib.U):
3680 This variable is "true" if the components of libraries must be ordered
3681 (with `lorder $* | tsort`) before placing them in an archive. Set to
3682 "false" if ranlib or ar can generate random libraries.
3684 osname (Oldconfig.U):
3685 This variable contains the operating system name (e.g. sunos,
3686 solaris, hpux, etc.). It can be useful later on for setting
3687 defaults. Any spaces are replaced with underscores. It is set
3688 to a null string if we can't figure it out.
3690 osvers (Oldconfig.U):
3691 This variable contains the operating system version (e.g.
3692 4.1.3, 5.2, etc.). It is primarily used for helping select
3693 an appropriate hints file, but might be useful elsewhere for
3694 setting defaults. It is set to '' if we can't figure it out.
3695 We try to be flexible about how much of the version number
3696 to keep, e.g. if 4.1.1, 4.1.2, and 4.1.3 are essentially the
3697 same for this package, hints files might just be os_4.0 or
3698 os_4.1, etc., not keeping separate files for each little release.
3700 otherlibdirs (otherlibdirs.U):
3701 This variable contains a colon-separated set of paths for the perl
3702 binary to search for additional library files or modules.
3703 These directories will be tacked to the end of @INC.
3704 Perl will automatically search below each path for version-
3705 and architecture-specific directories. See inc_version_list
3707 A value of ' ' means 'none' and is used to preserve this value
3708 for the next run through Configure.
3710 package (package.U):
3711 This variable contains the name of the package being constructed.
3712 It is primarily intended for the use of later Configure units.
3715 This variable contains the name of the preferred pager on the system.
3716 Usual values are (the full pathnames of) more, less, pg, or cat.
3719 This variable contains a command that produces the text of the
3720 /etc/passwd file. This is normally "cat /etc/passwd", but can be
3721 "ypcat passwd" when NIS is used.
3722 On some systems, such as os390, there may be no equivalent
3723 command, in which case this variable is unset.
3725 patchlevel (patchlevel.U):
3726 The patchlevel level of this package.
3727 The value of patchlevel comes from the patchlevel.h file.
3728 In a version number such as 5.6.1, this is the "6".
3729 In patchlevel.h, this is referred to as "PERL_VERSION".
3732 This is an old synonym for p_ in Head.U, the character
3733 used to separate elements in the command shell search PATH.
3736 This variable contains the full path (if any) to a previously
3737 installed perl5.005 or later suitable for running the script
3738 to determine inc_version_list.
3741 This variable is defined but not used by Configure.
3742 The value is a plain '' and is not useful.
3744 perl_patchlevel (patchlevel.U):
3745 This is the Perl patch level, a numeric change identifier,
3746 as defined by whichever source code maintenance system
3747 is used to maintain the patches; currently Perforce.
3748 It does not correlate with the Perl version numbers or
3749 the maintenance versus development dichotomy except
3750 by also being increasing.
3752 PERL_REVISION (Oldsyms.U):
3753 In a Perl version number such as 5.6.2, this is the 5.
3754 This value is manually set in patchlevel.h
3756 PERL_SUBVERSION (Oldsyms.U):
3757 In a Perl version number such as 5.6.2, this is the 2.
3758 Values greater than 50 represent potentially unstable
3759 development subversions.
3760 This value is manually set in patchlevel.h
3762 PERL_VERSION (Oldsyms.U):
3763 In a Perl version number such as 5.6.2, this is the 6.
3764 This value is manually set in patchlevel.h
3766 perladmin (perladmin.U):
3767 Electronic mail address of the perl5 administrator.
3770 The list of libraries needed by Perl only (any libraries needed
3771 by extensions only will by dropped, if using dynamic loading).
3773 perlpath (perlpath.U):
3774 This variable contains the eventual value of the PERLPATH symbol,
3775 which contains the name of the perl interpreter to be used in
3776 shell scripts and in the "eval 'exec'" idiom. This variable is
3777 not necessarily the pathname of the file containing the perl
3778 interpreter; you must append the executable extension (_exe) if
3779 it is not already present. Note that Perl code that runs during
3780 the Perl build process cannot reference this variable, as Perl
3781 may not have been installed, or even if installed, may be a
3782 different version of Perl.
3785 This variable is used internally by Configure to determine the
3786 full pathname (if any) of the pg program. After Configure runs,
3787 the value is reset to a plain "pg" and is not useful.
3789 phostname (myhostname.U):
3790 This variable contains the eventual value of the PHOSTNAME symbol,
3791 which is a command that can be fed to popen() to get the host name.
3792 The program should probably not presume that the domain is or isn't
3795 pidtype (pidtype.U):
3796 This variable defines PIDTYPE to be something like pid_t, int,
3797 ushort, or whatever type is used to declare process ids in the kernel.
3800 Holds the private path used by Configure to find out the libraries.
3801 Its value is prepend to libpth. This variable takes care of special
3802 machines, like the mips. Usually, it should be empty.
3805 This variable is defined but not used by Configure.
3806 The value is a plain '' and is not useful.
3809 This variable is defined but not used by Configure.
3810 The value is a plain '' and is not useful.
3813 This variable holds the name of the directory below which the
3814 user will install the package. Usually, this is /usr/local, and
3815 executables go in /usr/local/bin, library stuff in /usr/local/lib,
3816 man pages in /usr/local/man, etc. It is only used to set defaults
3817 for things in bin.U, mansrc.U, privlib.U, or scriptdir.U.
3819 prefixexp (prefix.U):
3820 This variable holds the full absolute path of the directory below
3821 which the user will install the package. Derived from prefix.
3823 privlib (privlib.U):
3824 This variable contains the eventual value of the PRIVLIB symbol,
3825 which is the name of the private library for this package. It may
3826 have a ~ on the front. It is up to the makefile to eventually create
3827 this directory while performing installation (with ~ substitution).
3829 privlibexp (privlib.U):
3830 This variable is the ~name expanded version of privlib, so that you
3831 may use it directly in Makefiles or shell scripts.
3833 procselfexe (d_procselfexe.U):
3834 If d_procselfexe is defined, $procselfexe is the filename
3835 of the symbolic link pointing to the absolute pathname of
3836 the executing program.
3838 prototype (prototype.U):
3839 This variable holds the eventual value of CAN_PROTOTYPE, which
3840 indicates the C compiler can handle funciton prototypes.
3842 ptrsize (ptrsize.U):
3843 This variable contains the value of the PTRSIZE symbol, which
3844 indicates to the C program how many bytes there are in a pointer.
3846 quadkind (quadtype.U):
3847 This variable, if defined, encodes the type of a quad:
3848 1 = int, 2 = long, 3 = long long, 4 = int64_t.
3850 quadtype (quadtype.U):
3851 This variable defines Quad_t to be something like long, int,
3852 long long, int64_t, or whatever type is used for 64-bit integers.
3854 randbits (randfunc.U):
3855 Indicates how many bits are produced by the function used to
3856 generate normalized random numbers.
3858 randfunc (randfunc.U):
3859 Indicates the name of the random number function to use.
3860 Values include drand48, random, and rand. In C programs,
3861 the 'Drand01' macro is defined to generate uniformly distributed
3862 random numbers over the range [0., 1.[ (see drand01 and nrand).
3864 random_r_proto (d_random_r.U):
3865 This variable encodes the prototype of random_r.
3866 It is zero if d_random_r is undef, and one of the
3867 REENTRANT_PROTO_T_ABC macros of reentr.h if d_random_r
3870 randseedtype (randfunc.U):
3871 Indicates the type of the argument of the seedfunc.
3873 ranlib (orderlib.U):
3874 This variable is set to the pathname of the ranlib program, if it is
3875 needed to generate random libraries. Set to ":" if ar can generate
3876 random libraries or if random libraries are not supported
3878 rd_nodata (nblock_io.U):
3879 This variable holds the return code from read() when no data is
3880 present. It should be -1, but some systems return 0 when O_NDELAY is
3881 used, which is a shame because you cannot make the difference between
3882 no data and an EOF.. Sigh!
3884 readdir64_r_proto (d_readdir64_r.U):
3885 This variable encodes the prototype of readdir64_r.
3886 It is zero if d_readdir64_r is undef, and one of the
3887 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir64_r
3890 readdir_r_proto (d_readdir_r.U):
3891 This variable encodes the prototype of readdir_r.
3892 It is zero if d_readdir_r is undef, and one of the
3893 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir_r
3896 revision (patchlevel.U):
3897 The value of revision comes from the patchlevel.h file.
3898 In a version number such as 5.6.1, this is the "5".
3899 In patchlevel.h, this is referred to as "PERL_REVISION".
3902 This variable is used internally by Configure to determine the
3903 full pathname (if any) of the rm program. After Configure runs,
3904 the value is reset to a plain "rm" and is not useful.
3907 This variable is defined but not used by Configure.
3908 The value is a plain '' and is not useful.
3911 This variable contains the command used by Configure
3912 to copy and execute a cross-compiled executable in the
3913 target host. Useful and available only during Perl build.
3914 Empty string '' if not cross-compiling.
3917 This variable contains 'true' or 'false' depending whether the
3918 nm extraction should be performed or not, according to the value
3919 of usenm and the flags on the Configure command line.
3921 sched_yield (d_pthread_y.U):
3922 This variable defines the way to yield the execution
3923 of the current thread.
3925 scriptdir (scriptdir.U):
3926 This variable holds the name of the directory in which the user wants
3927 to put publicly scripts for the package in question. It is either
3928 the same directory as for binaries, or a special one that can be
3929 mounted across different architectures, like /usr/share. Programs
3930 must be prepared to deal with ~name expansion.
3932 scriptdirexp (scriptdir.U):
3933 This variable is the same as scriptdir, but is filename expanded
3934 at configuration time, for programs not wanting to bother with it.
3937 This variable is used internally by Configure to determine the
3938 full pathname (if any) of the sed program. After Configure runs,
3939 the value is reset to a plain "sed" and is not useful.
3941 seedfunc (randfunc.U):
3942 Indicates the random number generating seed function.
3943 Values include srand48, srandom, and srand.
3945 selectminbits (selectminbits.U):
3946 This variable holds the minimum number of bits operated by select.
3947 That is, if you do select(n, ...), how many bits at least will be
3948 cleared in the masks if some activity is detected. Usually this
3949 is either n or 32*ceil(n/32), especially many little-endians do
3950 the latter. This is only useful if you have select(), naturally.
3952 selecttype (selecttype.U):
3953 This variable holds the type used for the 2nd, 3rd, and 4th
3954 arguments to select. Usually, this is 'fd_set *', if HAS_FD_SET
3955 is defined, and 'int *' otherwise. This is only useful if you
3956 have select(), naturally.
3959 This variable is defined but not used by Configure.
3960 The value is a plain '' and is not useful.
3962 setgrent_r_proto (d_setgrent_r.U):
3963 This variable encodes the prototype of setgrent_r.
3964 It is zero if d_setgrent_r is undef, and one of the
3965 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setgrent_r
3968 sethostent_r_proto (d_sethostent_r.U):
3969 This variable encodes the prototype of sethostent_r.
3970 It is zero if d_sethostent_r is undef, and one of the
3971 REENTRANT_PROTO_T_ABC macros of reentr.h if d_sethostent_r
3974 setlocale_r_proto (d_setlocale_r.U):
3975 This variable encodes the prototype of setlocale_r.
3976 It is zero if d_setlocale_r is undef, and one of the
3977 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setlocale_r
3980 setnetent_r_proto (d_setnetent_r.U):
3981 This variable encodes the prototype of setnetent_r.
3982 It is zero if d_setnetent_r is undef, and one of the
3983 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setnetent_r
3986 setprotoent_r_proto (d_setprotoent_r.U):
3987 This variable encodes the prototype of setprotoent_r.
3988 It is zero if d_setprotoent_r is undef, and one of the
3989 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setprotoent_r
3992 setpwent_r_proto (d_setpwent_r.U):
3993 This variable encodes the prototype of setpwent_r.
3994 It is zero if d_setpwent_r is undef, and one of the
3995 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setpwent_r
3998 setservent_r_proto (d_setservent_r.U):
3999 This variable encodes the prototype of setservent_r.
4000 It is zero if d_setservent_r is undef, and one of the
4001 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setservent_r
4005 This variable contains the full pathname of the shell used
4006 on this system to execute Bourne shell scripts. Usually, this will be
4007 /bin/sh, though it's possible that some systems will have /bin/ksh,
4008 /bin/pdksh, /bin/ash, /bin/bash, or even something such as
4010 This unit comes before Options.U, so you can't set sh with a '-D'
4011 option, though you can override this (and startsh)
4012 with '-O -Dsh=/bin/whatever -Dstartsh=whatever'
4015 This variable is defined but not used by Configure.
4016 The value is a plain '' and is not useful.
4018 sharpbang (spitshell.U):
4019 This variable contains the string #! if this system supports that
4022 shmattype (d_shmat.U):
4023 This symbol contains the type of pointer returned by shmat().
4024 It can be 'void *' or 'char *'.
4026 shortsize (intsize.U):
4027 This variable contains the value of the SHORTSIZE symbol which
4028 indicates to the C program how many bytes there are in a short.
4030 shrpenv (libperl.U):
4031 If the user builds a shared libperl.so, then we need to tell the
4032 'perl' executable where it will be able to find the installed libperl.so.
4033 One way to do this on some systems is to set the environment variable
4034 LD_RUN_PATH to the directory that will be the final location of the
4035 shared libperl.so. The makefile can use this with something like
4036 $shrpenv $(CC) -o perl perlmain.o $libperl $libs
4038 shrpenv="env LD_RUN_PATH=$archlibexp/CORE"
4041 See the main perl Makefile.SH for actual working usage.
4042 Alternatively, we might be able to use a command line option such
4043 as -R $archlibexp/CORE (Solaris) or -Wl,-rpath
4044 $archlibexp/CORE (Linux).
4046 shsharp (spitshell.U):
4047 This variable tells further Configure units whether your sh can
4050 sig_count (sig_name.U):
4051 This variable holds a number larger than the largest valid
4052 signal number. This is usually the same as the NSIG macro.
4054 sig_name (sig_name.U):
4055 This variable holds the signal names, space separated. The leading
4056 SIG in signal name is removed. A ZERO is prepended to the list.
4057 This is currently not used, sig_name_init is used instead.
4059 sig_name_init (sig_name.U):
4060 This variable holds the signal names, enclosed in double quotes and
4061 separated by commas, suitable for use in the SIG_NAME definition
4062 below. A "ZERO" is prepended to the list, and the list is
4063 terminated with a plain 0. The leading SIG in signal names
4064 is removed. See sig_num.
4066 sig_num (sig_name.U):
4067 This variable holds the signal numbers, space separated. A ZERO is
4068 prepended to the list (corresponding to the fake SIGZERO).
4069 Those numbers correspond to the value of the signal listed
4070 in the same place within the sig_name list.
4071 This is currently not used, sig_num_init is used instead.
4073 sig_num_init (sig_name.U):
4074 This variable holds the signal numbers, enclosed in double quotes and
4075 separated by commas, suitable for use in the SIG_NUM definition
4076 below. A "ZERO" is prepended to the list, and the list is
4077 terminated with a plain 0.
4079 sig_size (sig_name.U):
4080 This variable contains the number of elements of the sig_name
4083 signal_t (d_voidsig.U):
4084 This variable holds the type of the signal handler (void or int).
4086 sitearch (sitearch.U):
4087 This variable contains the eventual value of the SITEARCH symbol,
4088 which is the name of the private library for this package. It may
4089 have a ~ on the front. It is up to the makefile to eventually create
4090 this directory while performing installation (with ~ substitution).
4091 The standard distribution will put nothing in this directory.
4092 After perl has been installed, users may install their own local
4093 architecture-dependent modules in this directory with
4094 MakeMaker Makefile.PL
4095 or equivalent. See INSTALL for details.
4097 sitearchexp (sitearch.U):
4098 This variable is the ~name expanded version of sitearch, so that you
4099 may use it directly in Makefiles or shell scripts.
4101 sitebin (sitebin.U):
4102 This variable holds the name of the directory in which the user wants
4103 to put add-on publicly executable files for the package in question. It
4104 is most often a local directory such as /usr/local/bin. Programs using
4105 this variable must be prepared to deal with ~name substitution.
4106 The standard distribution will put nothing in this directory.
4107 After perl has been installed, users may install their own local
4108 executables in this directory with
4109 MakeMaker Makefile.PL
4110 or equivalent. See INSTALL for details.
4112 sitebinexp (sitebin.U):
4113 This is the same as the sitebin variable, but is filename expanded at
4114 configuration time, for use in your makefiles.
4116 sitehtml1dir (sitehtml1dir.U):
4117 This variable contains the name of the directory in which site-specific
4118 html source pages are to be put. It is the responsibility of the
4119 Makefile.SH to get the value of this into the proper command.
4120 You must be prepared to do the ~name expansion yourself.
4121 The standard distribution will put nothing in this directory.
4122 After perl has been installed, users may install their own local
4123 html pages in this directory with
4124 MakeMaker Makefile.PL
4125 or equivalent. See INSTALL for details.
4127 sitehtml1direxp (sitehtml1dir.U):
4128 This variable is the same as the sitehtml1dir variable, but is filename
4129 expanded at configuration time, for convenient use in makefiles.
4131 sitehtml3dir (sitehtml3dir.U):
4132 This variable contains the name of the directory in which site-specific
4133 library html source pages are to be put. It is the responsibility of the
4134 Makefile.SH to get the value of this into the proper command.
4135 You must be prepared to do the ~name expansion yourself.
4136 The standard distribution will put nothing in this directory.
4137 After perl has been installed, users may install their own local
4138 library html pages in this directory with
4139 MakeMaker Makefile.PL
4140 or equivalent. See INSTALL for details.
4142 sitehtml3direxp (sitehtml3dir.U):
4143 This variable is the same as the sitehtml3dir variable, but is filename
4144 expanded at configuration time, for convenient use in makefiles.
4146 sitelib (sitelib.U):
4147 This variable contains the eventual value of the SITELIB 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-independent modules in this directory with
4154 MakeMaker Makefile.PL
4155 or equivalent. See INSTALL for details.
4157 sitelib_stem (sitelib.U):
4158 This variable is $sitelibexp with any trailing version-specific component
4159 removed. The elements in inc_version_list (inc_version_list.U) can
4160 be tacked onto this variable to generate a list of directories to search.
4162 sitelibexp (sitelib.U):
4163 This variable is the ~name expanded version of sitelib, so that you
4164 may use it directly in Makefiles or shell scripts.
4166 siteman1dir (siteman1dir.U):
4167 This variable contains the name of the directory in which site-specific
4168 manual source pages are to be put. It is the responsibility of the
4169 Makefile.SH to get the value of this into the proper command.
4170 You must be prepared to do the ~name expansion yourself.
4171 The standard distribution will put nothing in this directory.
4172 After perl has been installed, users may install their own local
4173 man1 pages in this directory with
4174 MakeMaker Makefile.PL
4175 or equivalent. See INSTALL for details.
4177 siteman1direxp (siteman1dir.U):
4178 This variable is the same as the siteman1dir variable, but is filename
4179 expanded at configuration time, for convenient use in makefiles.
4181 siteman3dir (siteman3dir.U):
4182 This variable contains the name of the directory in which site-specific
4183 library man source pages are to be put. It is the responsibility of the
4184 Makefile.SH to get the value of this into the proper command.
4185 You must be prepared to do the ~name expansion yourself.
4186 The standard distribution will put nothing in this directory.
4187 After perl has been installed, users may install their own local
4188 man3 pages in this directory with
4189 MakeMaker Makefile.PL
4190 or equivalent. See INSTALL for details.
4192 siteman3direxp (siteman3dir.U):
4193 This variable is the same as the siteman3dir variable, but is filename
4194 expanded at configuration time, for convenient use in makefiles.
4196 siteprefix (siteprefix.U):
4197 This variable holds the full absolute path of the directory below
4198 which the user will install add-on packages.
4199 See INSTALL for usage and examples.
4201 siteprefixexp (siteprefix.U):
4202 This variable holds the full absolute path of the directory below
4203 which the user will install add-on packages. Derived from siteprefix.
4205 sitescript (sitescript.U):
4206 This variable holds the name of the directory in which the user wants
4207 to put add-on publicly executable files for the package in question. It
4208 is most often a local directory such as /usr/local/bin. Programs using
4209 this variable must be prepared to deal with ~name substitution.
4210 The standard distribution will put nothing in this directory.
4211 After perl has been installed, users may install their own local
4212 scripts in this directory with
4213 MakeMaker Makefile.PL
4214 or equivalent. See INSTALL for details.
4216 sitescriptexp (sitescript.U):
4217 This is the same as the sitescript variable, but is filename expanded at
4218 configuration time, for use in your makefiles.
4220 sizesize (sizesize.U):
4221 This variable contains the size of a sizetype in bytes.
4223 sizetype (sizetype.U):
4224 This variable defines sizetype to be something like size_t,
4225 unsigned long, or whatever type is used to declare length
4226 parameters for string functions.
4229 This variable is defined but not used by Configure.
4230 The value is a plain '' and is not useful.
4233 This variable is defined but not used by Configure.
4234 The value is a plain '' and is not useful.
4237 This variable holds the extension used to identify shared libraries
4238 (also known as shared objects) on the system. Usually set to 'so'.
4240 sockethdr (d_socket.U):
4241 This variable has any cpp '-I' flags needed for socket support.
4243 socketlib (d_socket.U):
4244 This variable has the names of any libraries needed for socket support.
4246 socksizetype (socksizetype.U):
4247 This variable holds the type used for the size argument
4248 for various socket calls like accept. Usual values include
4249 socklen_t, size_t, and int.
4252 This variable is used internally by Configure to determine the
4253 full pathname (if any) of the sort program. After Configure runs,
4254 the value is reset to a plain "sort" and is not useful.
4256 spackage (package.U):
4257 This variable contains the name of the package being constructed,
4258 with the first letter uppercased, i.e. suitable for starting
4261 spitshell (spitshell.U):
4262 This variable contains the command necessary to spit out a runnable
4263 shell on this system. It is either cat or a grep '-v' for # comments.
4265 sPRId64 (quadfio.U):
4266 This variable, if defined, contains the string used by stdio to
4267 format 64-bit decimal numbers (format 'd') for output.
4269 sPRIeldbl (longdblfio.U):
4270 This variable, if defined, contains the string used by stdio to
4271 format long doubles (format 'e') for output.
4273 sPRIEUldbl (longdblfio.U):
4274 This variable, if defined, contains the string used by stdio to
4275 format long doubles (format 'E') for output.
4276 The 'U' in the name is to separate this from sPRIeldbl so that even
4277 case-blind systems can see the difference.
4279 sPRIfldbl (longdblfio.U):
4280 This variable, if defined, contains the string used by stdio to
4281 format long doubles (format 'f') for output.
4283 sPRIFUldbl (longdblfio.U):
4284 This variable, if defined, contains the string used by stdio to
4285 format long doubles (format 'F') for output.
4286 The 'U' in the name is to separate this from sPRIfldbl so that even
4287 case-blind systems can see the difference.
4289 sPRIgldbl (longdblfio.U):
4290 This variable, if defined, contains the string used by stdio to
4291 format long doubles (format 'g') for output.
4293 sPRIGUldbl (longdblfio.U):
4294 This variable, if defined, contains the string used by stdio to
4295 format long doubles (format 'G') for output.
4296 The 'U' in the name is to separate this from sPRIgldbl so that even
4297 case-blind systems can see the difference.
4299 sPRIi64 (quadfio.U):
4300 This variable, if defined, contains the string used by stdio to
4301 format 64-bit decimal numbers (format 'i') for output.
4303 sPRIo64 (quadfio.U):
4304 This variable, if defined, contains the string used by stdio to
4305 format 64-bit octal numbers (format 'o') for output.
4307 sPRIu64 (quadfio.U):
4308 This variable, if defined, contains the string used by stdio to
4309 format 64-bit unsigned decimal numbers (format 'u') for output.
4311 sPRIx64 (quadfio.U):
4312 This variable, if defined, contains the string used by stdio to
4313 format 64-bit hexadecimal numbers (format 'x') for output.
4315 sPRIXU64 (quadfio.U):
4316 This variable, if defined, contains the string used by stdio to
4317 format 64-bit hExADECimAl numbers (format 'X') for output.
4318 The 'U' in the name is to separate this from sPRIx64 so that even
4319 case-blind systems can see the difference.
4321 srand48_r_proto (d_srand48_r.U):
4322 This variable encodes the prototype of srand48_r.
4323 It is zero if d_srand48_r is undef, and one of the
4324 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srand48_r
4327 srandom_r_proto (d_srandom_r.U):
4328 This variable encodes the prototype of srandom_r.
4329 It is zero if d_srandom_r is undef, and one of the
4330 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srandom_r
4334 This variable holds the path to the package source. It is up to
4335 the Makefile to use this variable and set VPATH accordingly to
4336 find the sources remotely.
4338 sSCNfldbl (longdblfio.U):
4339 This variable, if defined, contains the string used by stdio to
4340 format long doubles (format 'f') for input.
4342 ssizetype (ssizetype.U):
4343 This variable defines ssizetype to be something like ssize_t,
4344 long or int. It is used by functions that return a count
4345 of bytes or an error condition. It must be a signed type.
4346 We will pick a type such that sizeof(SSize_t) == sizeof(Size_t).
4348 startperl (startperl.U):
4349 This variable contains the string to put on the front of a perl
4350 script to make sure (hopefully) that it runs with perl and not some
4351 shell. Of course, that leading line must be followed by the classical
4353 eval 'exec perl -S $0 ${1+"$@"}'
4354 if $running_under_some_shell;
4355 to guarantee perl startup should the shell execute the script. Note
4356 that this magic incatation is not understood by csh.
4358 startsh (startsh.U):
4359 This variable contains the string to put on the front of a shell
4360 script to make sure (hopefully) that it runs with sh and not some
4363 static_ext (Extensions.U):
4364 This variable holds a list of XS extension files we want to
4365 link statically into the package. It is used by Makefile.
4367 stdchar (stdchar.U):
4368 This variable conditionally defines STDCHAR to be the type of char
4369 used in stdio.h. It has the values "unsigned char" or "char".
4371 stdio_base (d_stdstdio.U):
4372 This variable defines how, given a FILE pointer, fp, to access the
4373 _base field (or equivalent) of stdio.h's FILE structure. This will
4374 be used to define the macro FILE_base(fp).
4376 stdio_bufsiz (d_stdstdio.U):
4377 This variable defines how, given a FILE pointer, fp, to determine
4378 the number of bytes store in the I/O buffer pointer to by the
4379 _base field (or equivalent) of stdio.h's FILE structure. This will
4380 be used to define the macro FILE_bufsiz(fp).
4382 stdio_cnt (d_stdstdio.U):
4383 This variable defines how, given a FILE pointer, fp, to access the
4384 _cnt field (or equivalent) of stdio.h's FILE structure. This will
4385 be used to define the macro FILE_cnt(fp).
4387 stdio_filbuf (d_stdstdio.U):
4388 This variable defines how, given a FILE pointer, fp, to tell
4389 stdio to refill its internal buffers (?). This will
4390 be used to define the macro FILE_filbuf(fp).
4392 stdio_ptr (d_stdstdio.U):
4393 This variable defines how, given a FILE pointer, fp, to access the
4394 _ptr field (or equivalent) of stdio.h's FILE structure. This will
4395 be used to define the macro FILE_ptr(fp).
4397 stdio_stream_array (stdio_streams.U):
4398 This variable tells the name of the array holding the stdio streams.
4399 Usual values include _iob, __iob, and __sF.
4401 strerror_r_proto (d_strerror_r.U):
4402 This variable encodes the prototype of strerror_r.
4403 It is zero if d_strerror_r is undef, and one of the
4404 REENTRANT_PROTO_T_ABC macros of reentr.h if d_strerror_r
4407 strings (i_string.U):
4408 This variable holds the full path of the string header that will be
4409 used. Typically /usr/include/string.h or /usr/include/strings.h.
4412 This variable is defined but not used by Configure.
4413 The value is a plain '' and is not useful.
4415 subversion (patchlevel.U):
4416 The subversion level of this package.
4417 The value of subversion comes from the patchlevel.h file.
4418 In a version number such as 5.6.1, this is the "1".
4419 In patchlevel.h, this is referred to as "PERL_SUBVERSION".
4420 This is unique to perl.
4423 This variable holds the place where the manual is located on this
4424 system. It is not the place where the user wants to put his manual
4425 pages. Rather it is the place where Configure may look to find manual
4426 for unix commands (section 1 of the manual usually). See mansrc.
4429 This variable is defined but not used by Configure.
4430 The value is a plain '' and is not useful.
4433 This variable is defined but not used by Configure.
4434 The value is a plain '' and is not useful.
4436 targetarch (Cross.U):
4437 If cross-compiling, this variable contains the target architecture.
4438 If not, this will be empty.
4441 This variable is defined but not used by Configure.
4442 The value is a plain '' and is not useful.
4445 This variable is defined but not used by Configure.
4446 The value is a plain '' and is not useful.
4449 This variable is used internally by Configure to determine the
4450 full pathname (if any) of the test program. After Configure runs,
4451 the value is reset to a plain "test" and is not useful.
4453 timeincl (i_time.U):
4454 This variable holds the full path of the included time header(s).
4456 timetype (d_time.U):
4457 This variable holds the type returned by time(). It can be long,
4458 or time_t on BSD sites (in which case <sys/types.h> should be
4459 included). Anyway, the type Time_t should be used.
4461 tmpnam_r_proto (d_tmpnam_r.U):
4462 This variable encodes the prototype of tmpnam_r.
4463 It is zero if d_tmpnam_r is undef, and one of the
4464 REENTRANT_PROTO_T_ABC macros of reentr.h if d_tmpnam_r
4468 This variable contains the command used by Configure
4469 to copy to from the target host. Useful and available
4470 only during Perl build.
4471 The string ':' if not cross-compiling.
4474 This variable is used internally by Configure to determine the
4475 full pathname (if any) of the touch program. After Configure runs,
4476 the value is reset to a plain "touch" and is not useful.
4479 This variable is used internally by Configure to determine the
4480 full pathname (if any) of the tr program. After Configure runs,
4481 the value is reset to a plain "tr" and is not useful.
4484 This variable contains the value to be passed to the tr(1)
4485 command to transliterate a newline. Typical values are
4486 '\012' and '\n'. This is needed for EBCDIC systems where
4487 newline is not necessarily '\012'.
4490 This variable is defined but not used by Configure.
4491 The value is a plain '' and is not useful.
4493 ttyname_r_proto (d_ttyname_r.U):
4494 This variable encodes the prototype of ttyname_r.
4495 It is zero if d_ttyname_r is undef, and one of the
4496 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ttyname_r
4500 This variable is the size of an U16 in bytes.
4503 This variable contains the C type used for Perl's U16.
4506 This variable is the size of an U32 in bytes.
4509 This variable contains the C type used for Perl's U32.
4512 This variable is the size of an U64 in bytes.
4515 This variable contains the C type used for Perl's U64.
4518 This variable is the size of an U8 in bytes.
4521 This variable contains the C type used for Perl's U8.
4524 This variable contains the format string used for printing a Uid_t.
4526 uidsign (uidsign.U):
4527 This variable contains the signedness of a uidtype.
4528 1 for unsigned, -1 for signed.
4530 uidsize (uidsize.U):
4531 This variable contains the size of a uidtype in bytes.
4533 uidtype (uidtype.U):
4534 This variable defines Uid_t to be something like uid_t, int,
4535 ushort, or whatever type is used to declare user ids in the kernel.
4538 This variable is used internally by Configure to determine the
4539 full pathname (if any) of the uname program. After Configure runs,
4540 the value is reset to a plain "uname" and is not useful.
4543 This variable is used internally by Configure to determine the
4544 full pathname (if any) of the uniq program. After Configure runs,
4545 the value is reset to a plain "uniq" and is not useful.
4547 uquadtype (quadtype.U):
4548 This variable defines Uquad_t to be something like unsigned long,
4549 unsigned int, unsigned long long, uint64_t, or whatever type is
4550 used for 64-bit integers.
4552 use5005threads (usethreads.U):
4553 This variable conditionally defines the USE_5005THREADS symbol,
4554 and indicates that Perl should be built to use the 5.005-based
4555 threading implementation.
4557 use64bitall (use64bits.U):
4558 This variable conditionally defines the USE_64_BIT_ALL symbol,
4559 and indicates that 64-bit integer types should be used
4560 when available. The maximal possible
4561 64-bitness is employed: LP64 or ILP64, meaning that you will
4562 be able to use more than 2 gigabytes of memory. This mode is
4563 even more binary incompatible than USE_64_BIT_INT. You may not
4564 be able to run the resulting executable in a 32-bit CPU at all or
4565 you may need at least to reboot your OS to 64-bit mode.
4567 use64bitint (use64bits.U):
4568 This variable conditionally defines the USE_64_BIT_INT symbol,
4569 and indicates that 64-bit integer types should be used
4570 when available. The minimal possible 64-bitness
4571 is employed, just enough to get 64-bit integers into Perl.
4572 This may mean using for example "long longs", while your memory
4573 may still be limited to 2 gigabytes.
4575 usecrosscompile (Cross.U):
4576 This variable conditionally defines the USE_CROSS_COMPILE symbol,
4577 and indicates that Perl has been cross-compiled.
4580 This variable indicates if the system supports dynamic
4581 loading of some sort. See also dlsrc and dlobj.
4583 usefaststdio (usefaststdio.U):
4584 This variable conditionally defines the USE_FAST_STDIO symbol,
4585 and indicates that Perl should be built to use 'fast stdio'.
4586 Defaults to define in Perls 5.8 and earlier, to undef later.
4588 useithreads (usethreads.U):
4589 This variable conditionally defines the USE_ITHREADS symbol,
4590 and indicates that Perl should be built to use the interpreter-based
4591 threading implementation.
4593 uselargefiles (uselfs.U):
4594 This variable conditionally defines the USE_LARGE_FILES symbol,
4595 and indicates that large file interfaces should be used when
4598 uselongdouble (uselongdbl.U):
4599 This variable conditionally defines the USE_LONG_DOUBLE symbol,
4600 and indicates that long doubles should be used when available.
4602 usemorebits (usemorebits.U):
4603 This variable conditionally defines the USE_MORE_BITS symbol,
4604 and indicates that explicit 64-bit interfaces and long doubles
4605 should be used when available.
4607 usemultiplicity (usemultiplicity.U):
4608 This variable conditionally defines the MULTIPLICITY symbol,
4609 and indicates that Perl should be built to use multiplicity.
4611 usemymalloc (mallocsrc.U):
4612 This variable contains y if the malloc that comes with this package
4613 is desired over the system's version of malloc. People often include
4614 special versions of malloc for effiency, but such versions are often
4615 less portable. See also mallocsrc and mallocobj.
4616 If this is 'y', then -lmalloc is removed from $libs.
4619 This variable contains 'true' or 'false' depending whether the
4620 nm extraction is wanted or not.
4622 useopcode (Extensions.U):
4623 This variable holds either 'true' or 'false' to indicate
4624 whether the Opcode extension should be used. The sole
4625 use for this currently is to allow an easy mechanism
4626 for users to skip the Opcode extension from the Configure
4629 useperlio (useperlio.U):
4630 This variable conditionally defines the USE_PERLIO symbol,
4631 and indicates that the PerlIO abstraction should be
4634 useposix (Extensions.U):
4635 This variable holds either 'true' or 'false' to indicate
4636 whether the POSIX extension should be used. The sole
4637 use for this currently is to allow an easy mechanism
4638 for hints files to indicate that POSIX will not compile
4639 on a particular system.
4641 usereentrant (usethreads.U):
4642 This variable conditionally defines the USE_REENTRANT_API symbol,
4643 which indicates that the thread code may try to use the various
4644 _r versions of library functions. This is only potentially
4645 meaningful if usethreads is set and is very experimental, it is
4646 not even prompted for.
4649 This variable is set to true when the user agrees to use sfio.
4650 It is set to false when sfio is not available or when the user
4651 explicitely requests not to use sfio. It is here primarily so
4652 that command-line settings can override the auto-detection of
4653 d_sfio without running into a "WHOA THERE".
4655 useshrplib (libperl.U):
4656 This variable is set to 'true' if the user wishes
4657 to build a shared libperl, and 'false' otherwise.
4659 usesocks (usesocks.U):
4660 This variable conditionally defines the USE_SOCKS symbol,
4661 and indicates that Perl should be built to use SOCKS.
4663 usethreads (usethreads.U):
4664 This variable conditionally defines the USE_THREADS symbol,
4665 and indicates that Perl should be built to use threads.
4667 usevendorprefix (vendorprefix.U):
4668 This variable tells whether the vendorprefix
4669 and consequently other vendor* paths are in use.
4671 usevfork (d_vfork.U):
4672 This variable is set to true when the user accepts to use vfork.
4673 It is set to false when no vfork is available or when the user
4674 explicitely requests not to use vfork.
4677 This variable holds the path of the include files, which is
4678 usually /usr/include. It is mainly used by other Configure units.
4681 This variable is defined but not used by Configure.
4682 The value is a plain '' and is not useful.
4684 uvoformat (perlxvf.U):
4685 This variable contains the format string used for printing
4686 a Perl UV as an unsigned octal integer.
4689 This variable is the size of a UV in bytes.
4692 This variable contains the C type used for Perl's UV.
4694 uvuformat (perlxvf.U):
4695 This variable contains the format string used for printing
4696 a Perl UV as an unsigned decimal integer.
4698 uvxformat (perlxvf.U):
4699 This variable contains the format string used for printing
4700 a Perl UV as an unsigned hexadecimal integer in lowercase abcdef.
4702 uvXUformat (perlxvf.U):
4703 This variable contains the format string used for printing
4704 a Perl UV as an unsigned hexadecimal integer in uppercase ABCDEF.
4706 vendorarch (vendorarch.U):
4707 This variable contains the value of the PERL_VENDORARCH symbol.
4708 It may have a ~ on the front.
4709 The standard distribution will put nothing in this directory.
4710 Vendors who distribute perl may wish to place their own
4711 architecture-dependent modules and extensions in this directory with
4712 MakeMaker Makefile.PL INSTALLDIRS=vendor
4713 or equivalent. See INSTALL for details.
4715 vendorarchexp (vendorarch.U):
4716 This variable is the ~name expanded version of vendorarch, so that you
4717 may use it directly in Makefiles or shell scripts.
4719 vendorbin (vendorbin.U):
4720 This variable contains the eventual value of the VENDORBIN symbol.
4721 It may have a ~ on the front.
4722 The standard distribution will put nothing in this directory.
4723 Vendors who distribute perl may wish to place additional
4724 binaries in this directory with
4725 MakeMaker Makefile.PL INSTALLDIRS=vendor
4726 or equivalent. See INSTALL for details.
4728 vendorbinexp (vendorbin.U):
4729 This variable is the ~name expanded version of vendorbin, so that you
4730 may use it directly in Makefiles or shell scripts.
4732 vendorhtml1dir (vendorhtml1dir.U):
4733 This variable contains the name of the directory for html
4734 pages. It may have a ~ on the front.
4735 The standard distribution will put nothing in this directory.
4736 Vendors who distribute perl may wish to place their own
4737 html pages in this directory with
4738 MakeMaker Makefile.PL INSTALLDIRS=vendor
4739 or equivalent. See INSTALL for details.
4741 vendorhtml1direxp (vendorhtml1dir.U):
4742 This variable is the ~name expanded version of vendorhtml1dir, so that you
4743 may use it directly in Makefiles or shell scripts.
4745 vendorhtml3dir (vendorhtml3dir.U):
4746 This variable contains the name of the directory for html
4747 library pages. It may have a ~ on the front.
4748 The standard distribution will put nothing in this directory.
4749 Vendors who distribute perl may wish to place their own
4750 html pages for modules and extensions in this directory with
4751 MakeMaker Makefile.PL INSTALLDIRS=vendor
4752 or equivalent. See INSTALL for details.
4754 vendorhtml3direxp (vendorhtml3dir.U):
4755 This variable is the ~name expanded version of vendorhtml3dir, so that you
4756 may use it directly in Makefiles or shell scripts.
4758 vendorlib (vendorlib.U):
4759 This variable contains the eventual value of the VENDORLIB symbol,
4760 which is the name of the private library for this package.
4761 The standard distribution will put nothing in this directory.
4762 Vendors who distribute perl may wish to place their own
4763 modules in this directory with
4764 MakeMaker Makefile.PL INSTALLDIRS=vendor
4765 or equivalent. See INSTALL for details.
4767 vendorlib_stem (vendorlib.U):
4768 This variable is $vendorlibexp with any trailing version-specific component
4769 removed. The elements in inc_version_list (inc_version_list.U) can
4770 be tacked onto this variable to generate a list of directories to search.
4772 vendorlibexp (vendorlib.U):
4773 This variable is the ~name expanded version of vendorlib, so that you
4774 may use it directly in Makefiles or shell scripts.
4776 vendorman1dir (vendorman1dir.U):
4777 This variable contains the name of the directory for man1
4778 pages. It may have a ~ on the front.
4779 The standard distribution will put nothing in this directory.
4780 Vendors who distribute perl may wish to place their own
4781 man1 pages in this directory with
4782 MakeMaker Makefile.PL INSTALLDIRS=vendor
4783 or equivalent. See INSTALL for details.
4785 vendorman1direxp (vendorman1dir.U):
4786 This variable is the ~name expanded version of vendorman1dir, so that you
4787 may use it directly in Makefiles or shell scripts.
4789 vendorman3dir (vendorman3dir.U):
4790 This variable contains the name of the directory for man3
4791 pages. It may have a ~ on the front.
4792 The standard distribution will put nothing in this directory.
4793 Vendors who distribute perl may wish to place their own
4794 man3 pages in this directory with
4795 MakeMaker Makefile.PL INSTALLDIRS=vendor
4796 or equivalent. See INSTALL for details.
4798 vendorman3direxp (vendorman3dir.U):
4799 This variable is the ~name expanded version of vendorman3dir, so that you
4800 may use it directly in Makefiles or shell scripts.
4802 vendorprefix (vendorprefix.U):
4803 This variable holds the full absolute path of the directory below
4804 which the vendor will install add-on packages.
4805 See INSTALL for usage and examples.
4807 vendorprefixexp (vendorprefix.U):
4808 This variable holds the full absolute path of the directory below
4809 which the vendor will install add-on packages. Derived from vendorprefix.
4811 vendorscript (vendorscript.U):
4812 This variable contains the eventual value of the VENDORSCRIPT symbol.
4813 It may have a ~ on the front.
4814 The standard distribution will put nothing in this directory.
4815 Vendors who distribute perl may wish to place additional
4816 executable scripts in this directory with
4817 MakeMaker Makefile.PL INSTALLDIRS=vendor
4818 or equivalent. See INSTALL for details.
4820 vendorscriptexp (vendorscript.U):
4821 This variable is the ~name expanded version of vendorscript, so that you
4822 may use it directly in Makefiles or shell scripts.
4824 version (patchlevel.U):
4825 The full version number of this package, such as 5.6.1 (or 5_6_1).
4826 This combines revision, patchlevel, and subversion to get the
4827 full version number, including any possible subversions.
4828 This is suitable for use as a directory name, and hence is
4829 filesystem dependent.
4831 version_patchlevel_string (patchlevel.U):
4832 This is a string combining version, subversion and
4833 perl_patchlevel (if perl_patchlevel is non-zero).
4834 It is typically something like
4835 'version 7 subversion 1' or
4836 'version 7 subversion 1 patchlevel 11224'
4837 It is computed here to avoid duplication of code in myconfig.SH
4840 versiononly (versiononly.U):
4841 If set, this symbol indicates that only the version-specific
4842 components of a perl installation should be installed.
4843 This may be useful for making a test installation of a new
4844 version without disturbing the existing installation.
4845 Setting versiononly is equivalent to setting installperl's -v option.
4846 In particular, the non-versioned scripts and programs such as
4847 a2p, c2ph, h2xs, pod2*, and perldoc are not installed
4848 (see INSTALL for a more complete list). Nor are the man
4850 Usually, this is undef.
4853 This variable is defined but not used by Configure.
4854 The value is a plain '' and is not useful.
4856 voidflags (voidflags.U):
4857 This variable contains the eventual value of the VOIDFLAGS symbol,
4858 which indicates how much support of the void type is given by this
4859 compiler. See VOIDFLAGS for more info.
4862 This variable holds extra path (space-separated) used to find
4863 libraries on this platform, for example CPU-specific libraries
4864 (on multi-CPU platforms) may be listed here.
4867 This variable holds the name of the compiler compiler we
4868 want to use in the Makefile. It can be yacc, byacc, or bison -y.
4871 This variable contains any additional yacc flags desired by the
4872 user. It is up to the Makefile to use this.
4875 This variable is defined but not used by Configure.
4876 The value is a plain '' and is not useful.
4879 This variable is used internally by Configure to determine the
4880 full pathname (if any) of the zip program. After Configure runs,
4881 the value is reset to a plain "zip" and is not useful.