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.
1342 d_nanosleep (d_nanosleep.U):
1343 This variable conditionally defines HAS_NANOSLEEP
1344 if nanosleep() is available to sleep with 1E-9 sec accuracy.
1347 This variable conditionally defines the HAS_NICE symbol, which
1348 indicates to the C program that the nice() routine is available.
1350 d_nl_langinfo (d_nl_langinfo.U):
1351 This variable conditionally defines the HAS_NL_LANGINFO symbol, which
1352 indicates to the C program that the nl_langinfo() routine is available.
1354 d_nv_preserves_uv (perlxv.U):
1355 This variable indicates whether a variable of type nvtype
1356 can preserve all the bits a variable of type uvtype.
1358 d_off64_t (d_off64_t.U):
1359 This symbol will be defined if the C compiler supports off64_t.
1361 d_old_pthread_create_joinable (d_pthrattrj.U):
1362 This variable conditionally defines pthread_create_joinable.
1363 undef if pthread.h defines PTHREAD_CREATE_JOINABLE.
1365 d_oldpthreads (usethreads.U):
1366 This variable conditionally defines the OLD_PTHREADS_API symbol,
1367 and indicates that Perl should be built to use the old
1368 draft POSIX threads API. This is only potentially meaningful if
1371 d_oldsock (d_socket.U):
1372 This variable conditionally defines the OLDSOCKET symbol, which
1373 indicates that the BSD socket interface is based on 4.1c and not 4.2.
1375 d_open3 (d_open3.U):
1376 This variable conditionally defines the HAS_OPEN3 manifest constant,
1377 which indicates to the C program that the 3 argument version of
1378 the open(2) function is available.
1380 d_pathconf (d_pathconf.U):
1381 This variable conditionally defines the HAS_PATHCONF symbol, which
1382 indicates to the C program that the pathconf() routine is available
1383 to determine file-system related limits and options associated
1384 with a given filename.
1386 d_pause (d_pause.U):
1387 This variable conditionally defines the HAS_PAUSE symbol, which
1388 indicates to the C program that the pause() routine is available
1389 to suspend a process until a signal is received.
1391 d_perl_otherlibdirs (otherlibdirs.U):
1392 This variable conditionally defines PERL_OTHERLIBDIRS, which
1393 contains a colon-separated set of paths for the perl binary to
1394 include in @INC. See also otherlibdirs.
1396 d_phostname (d_gethname.U):
1397 This variable conditionally defines the HAS_PHOSTNAME symbol, which
1398 contains the shell command which, when fed to popen(), may be
1399 used to derive the host name.
1402 This variable conditionally defines the HAS_PIPE symbol, which
1403 indicates to the C program that the pipe() routine is available
1404 to create an inter-process channel.
1407 This variable conditionally defines the HAS_POLL symbol, which
1408 indicates to the C program that the poll() routine is available
1409 to poll active file descriptors.
1411 d_portable (d_portable.U):
1412 This variable conditionally defines the PORTABLE symbol, which
1413 indicates to the C program that it should not assume that it is
1414 running on the machine it was compiled on.
1416 d_PRId64 (quadfio.U):
1417 This variable conditionally defines the PERL_PRId64 symbol, which
1418 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1420 d_PRIeldbl (longdblfio.U):
1421 This variable conditionally defines the PERL_PRIfldbl symbol, which
1422 indiciates that stdio has a symbol to print long doubles.
1424 d_PRIEUldbl (longdblfio.U):
1425 This variable conditionally defines the PERL_PRIfldbl symbol, which
1426 indiciates that stdio has a symbol to print long doubles.
1427 The 'U' in the name is to separate this from d_PRIeldbl so that even
1428 case-blind systems can see the difference.
1430 d_PRIfldbl (longdblfio.U):
1431 This variable conditionally defines the PERL_PRIfldbl symbol, which
1432 indiciates that stdio has a symbol to print long doubles.
1434 d_PRIFUldbl (longdblfio.U):
1435 This variable conditionally defines the PERL_PRIfldbl symbol, which
1436 indiciates that stdio has a symbol to print long doubles.
1437 The 'U' in the name is to separate this from d_PRIfldbl so that even
1438 case-blind systems can see the difference.
1440 d_PRIgldbl (longdblfio.U):
1441 This variable conditionally defines the PERL_PRIfldbl symbol, which
1442 indiciates that stdio has a symbol to print long doubles.
1444 d_PRIGUldbl (longdblfio.U):
1445 This variable conditionally defines the PERL_PRIfldbl symbol, which
1446 indiciates that stdio has a symbol to print long doubles.
1447 The 'U' in the name is to separate this from d_PRIgldbl so that even
1448 case-blind systems can see the difference.
1450 d_PRIi64 (quadfio.U):
1451 This variable conditionally defines the PERL_PRIi64 symbol, which
1452 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1454 d_PRIo64 (quadfio.U):
1455 This variable conditionally defines the PERL_PRIo64 symbol, which
1456 indiciates that stdio has a symbol to print 64-bit octal numbers.
1458 d_PRIu64 (quadfio.U):
1459 This variable conditionally defines the PERL_PRIu64 symbol, which
1460 indiciates that stdio has a symbol to print 64-bit unsigned decimal
1463 d_PRIx64 (quadfio.U):
1464 This variable conditionally defines the PERL_PRIx64 symbol, which
1465 indiciates that stdio has a symbol to print 64-bit hexadecimal numbers.
1467 d_PRIXU64 (quadfio.U):
1468 This variable conditionally defines the PERL_PRIXU64 symbol, which
1469 indiciates that stdio has a symbol to print 64-bit hExADECimAl numbers.
1470 The 'U' in the name is to separate this from d_PRIx64 so that even
1471 case-blind systems can see the difference.
1473 d_procselfexe (d_procselfexe.U):
1474 Defined if $procselfexe is symlink to the absolute
1475 pathname of the executing program.
1477 d_pthread_atfork (d_pthread_atfork.U):
1478 This variable conditionally defines the HAS_PTHREAD_ATFORK symbol,
1479 which indicates to the C program that the pthread_atfork()
1480 routine is available.
1482 d_pthread_attr_setscope (d_pthread_attr_ss.U):
1483 This variable conditionally defines HAS_PTHREAD_ATTR_SETSCOPE if
1484 pthread_attr_setscope() is available to set the contention scope
1485 attribute of a thread attribute object.
1487 d_pthread_yield (d_pthread_y.U):
1488 This variable conditionally defines the HAS_PTHREAD_YIELD
1489 symbol if the pthread_yield routine is available to yield
1490 the execution of the current thread.
1493 This variable conditionally defines PWAGE, which indicates
1494 that struct passwd contains pw_age.
1496 d_pwchange (i_pwd.U):
1497 This variable conditionally defines PWCHANGE, which indicates
1498 that struct passwd contains pw_change.
1500 d_pwclass (i_pwd.U):
1501 This variable conditionally defines PWCLASS, which indicates
1502 that struct passwd contains pw_class.
1504 d_pwcomment (i_pwd.U):
1505 This variable conditionally defines PWCOMMENT, which indicates
1506 that struct passwd contains pw_comment.
1508 d_pwexpire (i_pwd.U):
1509 This variable conditionally defines PWEXPIRE, which indicates
1510 that struct passwd contains pw_expire.
1512 d_pwgecos (i_pwd.U):
1513 This variable conditionally defines PWGECOS, which indicates
1514 that struct passwd contains pw_gecos.
1516 d_pwpasswd (i_pwd.U):
1517 This variable conditionally defines PWPASSWD, which indicates
1518 that struct passwd contains pw_passwd.
1520 d_pwquota (i_pwd.U):
1521 This variable conditionally defines PWQUOTA, which indicates
1522 that struct passwd contains pw_quota.
1524 d_qgcvt (d_qgcvt.U):
1525 This variable conditionally defines the HAS_QGCVT symbol, which
1526 indicates to the C program that the qgcvt() routine is available.
1528 d_quad (quadtype.U):
1529 This variable, if defined, tells that there's a 64-bit integer type,
1532 d_random_r (d_random_r.U):
1533 This variable conditionally defines the HAS_RANDOM_R symbol,
1534 which indicates to the C program that the random_r()
1535 routine is available.
1537 d_readdir64_r (d_readdir64_r.U):
1538 This variable conditionally defines the HAS_READDIR64_R symbol,
1539 which indicates to the C program that the readdir64_r()
1540 routine is available.
1542 d_readdir (d_readdir.U):
1543 This variable conditionally defines HAS_READDIR if readdir() is
1544 available to read directory entries.
1546 d_readdir_r (d_readdir_r.U):
1547 This variable conditionally defines the HAS_READDIR_R symbol,
1548 which indicates to the C program that the readdir_r()
1549 routine is available.
1551 d_readlink (d_readlink.U):
1552 This variable conditionally defines the HAS_READLINK symbol, which
1553 indicates to the C program that the readlink() routine is available
1554 to read the value of a symbolic link.
1556 d_readv (d_readv.U):
1557 This variable conditionally defines the HAS_READV symbol, which
1558 indicates to the C program that the readv() routine is available.
1560 d_recvmsg (d_recvmsg.U):
1561 This variable conditionally defines the HAS_RECVMSG symbol, which
1562 indicates to the C program that the recvmsg() routine is available.
1564 d_rename (d_rename.U):
1565 This variable conditionally defines the HAS_RENAME symbol, which
1566 indicates to the C program that the rename() routine is available
1569 d_rewinddir (d_readdir.U):
1570 This variable conditionally defines HAS_REWINDDIR if rewinddir() is
1573 d_rmdir (d_rmdir.U):
1574 This variable conditionally defines HAS_RMDIR if rmdir() is
1575 available to remove directories.
1577 d_safebcpy (d_safebcpy.U):
1578 This variable conditionally defines the HAS_SAFE_BCOPY symbol if
1579 the bcopy() routine can do overlapping copies. Normally, you
1580 should probably use memmove().
1582 d_safemcpy (d_safemcpy.U):
1583 This variable conditionally defines the HAS_SAFE_MEMCPY symbol if
1584 the memcpy() routine can do overlapping copies.
1585 For overlapping copies, memmove() should be used, if available.
1587 d_sanemcmp (d_sanemcmp.U):
1588 This variable conditionally defines the HAS_SANE_MEMCMP symbol if
1589 the memcpy() routine is available and can be used to compare relative
1590 magnitudes of chars with their high bits set.
1592 d_sbrkproto (d_sbrkproto.U):
1593 This variable conditionally defines the HAS_SBRK_PROTO symbol,
1594 which indicates to the C program that the system provides
1595 a prototype for the sbrk() function. Otherwise, it is
1596 up to the program to supply one.
1598 d_scalbnl (d_scalbnl.U):
1599 This variable conditionally defines the HAS_SCALBNL symbol, which
1600 indicates to the C program that the scalbnl() routine is available.
1601 If ilogbl is also present we can emulate frexpl.
1603 d_sched_yield (d_pthread_y.U):
1604 This variable conditionally defines the HAS_SCHED_YIELD
1605 symbol if the sched_yield routine is available to yield
1606 the execution of the current thread.
1608 d_scm_rights (d_socket.U):
1609 This variable conditionally defines the HAS_SCM_RIGHTS symbol,
1610 which indicates that the SCM_RIGHTS is available. #ifdef is
1611 not enough because it may be an enum, glibc has been known to do this.
1613 d_SCNfldbl (longdblfio.U):
1614 This variable conditionally defines the PERL_PRIfldbl symbol, which
1615 indiciates that stdio has a symbol to scan long doubles.
1617 d_seekdir (d_readdir.U):
1618 This variable conditionally defines HAS_SEEKDIR if seekdir() is
1621 d_select (d_select.U):
1622 This variable conditionally defines HAS_SELECT if select() is
1623 available to select active file descriptors. A <sys/time.h>
1624 inclusion may be necessary for the timeout field.
1627 This variable conditionally defines the HAS_SEM symbol, which
1628 indicates that the entire sem*(2) library is present.
1630 d_semctl (d_semctl.U):
1631 This variable conditionally defines the HAS_SEMCTL symbol, which
1632 indicates to the C program that the semctl() routine is available.
1634 d_semctl_semid_ds (d_union_semun.U):
1635 This variable conditionally defines USE_SEMCTL_SEMID_DS, which
1636 indicates that struct semid_ds * is to be used for semctl IPC_STAT.
1638 d_semctl_semun (d_union_semun.U):
1639 This variable conditionally defines USE_SEMCTL_SEMUN, which
1640 indicates that union semun is to be used for semctl IPC_STAT.
1642 d_semget (d_semget.U):
1643 This variable conditionally defines the HAS_SEMGET symbol, which
1644 indicates to the C program that the semget() routine is available.
1646 d_semop (d_semop.U):
1647 This variable conditionally defines the HAS_SEMOP symbol, which
1648 indicates to the C program that the semop() routine is available.
1650 d_sendmsg (d_sendmsg.U):
1651 This variable conditionally defines the HAS_SENDMSG symbol, which
1652 indicates to the C program that the sendmsg() routine is available.
1654 d_setegid (d_setegid.U):
1655 This variable conditionally defines the HAS_SETEGID symbol, which
1656 indicates to the C program that the setegid() routine is available
1657 to change the effective gid of the current program.
1659 d_seteuid (d_seteuid.U):
1660 This variable conditionally defines the HAS_SETEUID symbol, which
1661 indicates to the C program that the seteuid() routine is available
1662 to change the effective uid of the current program.
1664 d_setgrent (d_setgrent.U):
1665 This variable conditionally defines the HAS_SETGRENT symbol, which
1666 indicates to the C program that the setgrent() routine is available
1667 for initializing sequential access to the group database.
1669 d_setgrent_r (d_setgrent_r.U):
1670 This variable conditionally defines the HAS_SETGRENT_R symbol,
1671 which indicates to the C program that the setgrent_r()
1672 routine is available.
1674 d_setgrps (d_setgrps.U):
1675 This variable conditionally defines the HAS_SETGROUPS symbol, which
1676 indicates to the C program that the setgroups() routine is available
1677 to set the list of process groups.
1679 d_sethent (d_sethent.U):
1680 This variable conditionally defines HAS_SETHOSTENT if sethostent() is
1683 d_sethostent_r (d_sethostent_r.U):
1684 This variable conditionally defines the HAS_SETHOSTENT_R symbol,
1685 which indicates to the C program that the sethostent_r()
1686 routine is available.
1688 d_setitimer (d_setitimer.U):
1689 This variable conditionally defines the HAS_SETITIMER symbol, which
1690 indicates to the C program that the setitimer() routine is available.
1692 d_setlinebuf (d_setlnbuf.U):
1693 This variable conditionally defines the HAS_SETLINEBUF symbol, which
1694 indicates to the C program that the setlinebuf() routine is available
1695 to change stderr or stdout from block-buffered or unbuffered to a
1698 d_setlocale (d_setlocale.U):
1699 This variable conditionally defines HAS_SETLOCALE if setlocale() is
1700 available to handle locale-specific ctype implementations.
1702 d_setlocale_r (d_setlocale_r.U):
1703 This variable conditionally defines the HAS_SETLOCALE_R symbol,
1704 which indicates to the C program that the setlocale_r()
1705 routine is available.
1707 d_setnent (d_setnent.U):
1708 This variable conditionally defines HAS_SETNETENT if setnetent() is
1711 d_setnetent_r (d_setnetent_r.U):
1712 This variable conditionally defines the HAS_SETNETENT_R symbol,
1713 which indicates to the C program that the setnetent_r()
1714 routine is available.
1716 d_setpent (d_setpent.U):
1717 This variable conditionally defines HAS_SETPROTOENT if setprotoent() is
1720 d_setpgid (d_setpgid.U):
1721 This variable conditionally defines the HAS_SETPGID symbol if the
1722 setpgid(pid, gpid) function is available to set process group ID.
1724 d_setpgrp2 (d_setpgrp2.U):
1725 This variable conditionally defines the HAS_SETPGRP2 symbol, which
1726 indicates to the C program that the setpgrp2() (as in DG/UX) routine
1727 is available to set the current process group.
1729 d_setpgrp (d_setpgrp.U):
1730 This variable conditionally defines HAS_SETPGRP if setpgrp() is
1731 available to set the current process group.
1733 d_setprior (d_setprior.U):
1734 This variable conditionally defines HAS_SETPRIORITY if setpriority()
1735 is available to set a process's priority.
1737 d_setproctitle (d_setproctitle.U):
1738 This variable conditionally defines the HAS_SETPROCTITLE symbol,
1739 which indicates to the C program that the setproctitle() routine
1742 d_setprotoent_r (d_setprotoent_r.U):
1743 This variable conditionally defines the HAS_SETPROTOENT_R symbol,
1744 which indicates to the C program that the setprotoent_r()
1745 routine is available.
1747 d_setpwent (d_setpwent.U):
1748 This variable conditionally defines the HAS_SETPWENT symbol, which
1749 indicates to the C program that the setpwent() routine is available
1750 for initializing sequential access to the passwd database.
1752 d_setpwent_r (d_setpwent_r.U):
1753 This variable conditionally defines the HAS_SETPWENT_R symbol,
1754 which indicates to the C program that the setpwent_r()
1755 routine is available.
1757 d_setregid (d_setregid.U):
1758 This variable conditionally defines HAS_SETREGID if setregid() is
1759 available to change the real and effective gid of the current
1762 d_setresgid (d_setregid.U):
1763 This variable conditionally defines HAS_SETRESGID if setresgid() is
1764 available to change the real, effective and saved gid of the current
1767 d_setresuid (d_setreuid.U):
1768 This variable conditionally defines HAS_SETREUID if setresuid() is
1769 available to change the real, effective and saved uid of the current
1772 d_setreuid (d_setreuid.U):
1773 This variable conditionally defines HAS_SETREUID if setreuid() is
1774 available to change the real and effective uid of the current
1777 d_setrgid (d_setrgid.U):
1778 This variable conditionally defines the HAS_SETRGID symbol, which
1779 indicates to the C program that the setrgid() routine is available
1780 to change the real gid of the current program.
1782 d_setruid (d_setruid.U):
1783 This variable conditionally defines the HAS_SETRUID symbol, which
1784 indicates to the C program that the setruid() routine is available
1785 to change the real uid of the current program.
1787 d_setsent (d_setsent.U):
1788 This variable conditionally defines HAS_SETSERVENT if setservent() is
1791 d_setservent_r (d_setservent_r.U):
1792 This variable conditionally defines the HAS_SETSERVENT_R symbol,
1793 which indicates to the C program that the setservent_r()
1794 routine is available.
1796 d_setsid (d_setsid.U):
1797 This variable conditionally defines HAS_SETSID if setsid() is
1798 available to set the process group ID.
1800 d_setvbuf (d_setvbuf.U):
1801 This variable conditionally defines the HAS_SETVBUF symbol, which
1802 indicates to the C program that the setvbuf() routine is available
1803 to change buffering on an open stdio stream.
1806 This variable conditionally defines the USE_SFIO symbol,
1807 and indicates whether sfio is available (and should be used).
1810 This variable conditionally defines the HAS_SHM symbol, which
1811 indicates that the entire shm*(2) library is present.
1813 d_shmat (d_shmat.U):
1814 This variable conditionally defines the HAS_SHMAT symbol, which
1815 indicates to the C program that the shmat() routine is available.
1817 d_shmatprototype (d_shmat.U):
1818 This variable conditionally defines the HAS_SHMAT_PROTOTYPE
1819 symbol, which indicates that sys/shm.h has a prototype for
1822 d_shmctl (d_shmctl.U):
1823 This variable conditionally defines the HAS_SHMCTL symbol, which
1824 indicates to the C program that the shmctl() routine is available.
1826 d_shmdt (d_shmdt.U):
1827 This variable conditionally defines the HAS_SHMDT symbol, which
1828 indicates to the C program that the shmdt() routine is available.
1830 d_shmget (d_shmget.U):
1831 This variable conditionally defines the HAS_SHMGET symbol, which
1832 indicates to the C program that the shmget() routine is available.
1834 d_sigaction (d_sigaction.U):
1835 This variable conditionally defines the HAS_SIGACTION symbol, which
1836 indicates that the Vr4 sigaction() routine is available.
1838 d_sigprocmask (d_sigprocmask.U):
1839 This variable conditionally defines HAS_SIGPROCMASK
1840 if sigprocmask() is available to examine or change the signal mask
1841 of the calling process.
1843 d_sigsetjmp (d_sigsetjmp.U):
1844 This variable conditionally defines the HAS_SIGSETJMP symbol,
1845 which indicates that the sigsetjmp() routine is available to
1846 call setjmp() and optionally save the process's signal mask.
1848 d_sockatmark (d_sockatmark.U):
1849 This variable conditionally defines the HAS_SOCKATMARK symbol, which
1850 indicates to the C program that the sockatmark() routine is available.
1852 d_sockatmarkproto (d_sockatmarkproto.U):
1853 This variable conditionally defines the HAS_SOCKATMARK_PROTO symbol,
1854 which indicates to the C program that the system provides
1855 a prototype for the sockatmark() function. Otherwise, it is
1856 up to the program to supply one.
1858 d_socket (d_socket.U):
1859 This variable conditionally defines HAS_SOCKET, which indicates
1860 that the BSD socket interface is supported.
1862 d_socklen_t (d_socklen_t.U):
1863 This symbol will be defined if the C compiler supports socklen_t.
1865 d_sockpair (d_socket.U):
1866 This variable conditionally defines the HAS_SOCKETPAIR symbol, which
1867 indicates that the BSD socketpair() is supported.
1869 d_socks5_init (d_socks5_init.U):
1870 This variable conditionally defines the HAS_SOCKS5_INIT symbol, which
1871 indicates to the C program that the socks5_init() routine is available.
1873 d_sqrtl (d_sqrtl.U):
1874 This variable conditionally defines the HAS_SQRTL symbol, which
1875 indicates to the C program that the sqrtl() routine is available.
1877 d_srand48_r (d_srand48_r.U):
1878 This variable conditionally defines the HAS_SRAND48_R symbol,
1879 which indicates to the C program that the srand48_r()
1880 routine is available.
1882 d_srandom_r (d_srandom_r.U):
1883 This variable conditionally defines the HAS_SRANDOM_R symbol,
1884 which indicates to the C program that the srandom_r()
1885 routine is available.
1887 d_sresgproto (d_sresgproto.U):
1888 This variable conditionally defines the HAS_SETRESGID_PROTO symbol,
1889 which indicates to the C program that the system provides
1890 a prototype for the setresgid() function. Otherwise, it is
1891 up to the program to supply one.
1893 d_sresuproto (d_sresuproto.U):
1894 This variable conditionally defines the HAS_SETRESUID_PROTO symbol,
1895 which indicates to the C program that the system provides
1896 a prototype for the setresuid() function. Otherwise, it is
1897 up to the program to supply one.
1899 d_statblks (d_statblks.U):
1900 This variable conditionally defines USE_STAT_BLOCKS
1901 if this system has a stat structure declaring
1902 st_blksize and st_blocks.
1904 d_statfs_f_flags (d_statfs_f_flags.U):
1905 This variable conditionally defines the HAS_STRUCT_STATFS_F_FLAGS
1906 symbol, which indicates to struct statfs from has f_flags member.
1907 This kind of struct statfs is coming from sys/mount.h (BSD),
1908 not from sys/statfs.h (SYSV).
1910 d_statfs_s (d_statfs_s.U):
1911 This variable conditionally defines the HAS_STRUCT_STATFS symbol,
1912 which indicates that the struct statfs is supported.
1914 d_statvfs (d_statvfs.U):
1915 This variable conditionally defines the HAS_STATVFS symbol, which
1916 indicates to the C program that the statvfs() routine is available.
1918 d_stdio_cnt_lval (d_stdstdio.U):
1919 This variable conditionally defines STDIO_CNT_LVALUE if the
1920 FILE_cnt macro can be used as an lvalue.
1922 d_stdio_ptr_lval (d_stdstdio.U):
1923 This variable conditionally defines STDIO_PTR_LVALUE if the
1924 FILE_ptr macro can be used as an lvalue.
1926 d_stdio_ptr_lval_nochange_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 leaves File_cnt(fp) unchanged.
1930 d_stdio_ptr_lval_sets_cnt (d_stdstdio.U):
1931 This symbol is defined if using the FILE_ptr macro as an lvalue
1932 to increase the pointer by n has the side effect of decreasing the
1933 value of File_cnt(fp) by n.
1935 d_stdio_stream_array (stdio_streams.U):
1936 This variable tells whether there is an array holding
1939 d_stdiobase (d_stdstdio.U):
1940 This variable conditionally defines USE_STDIO_BASE if this system
1941 has a FILE structure declaring a usable _base field (or equivalent)
1944 d_stdstdio (d_stdstdio.U):
1945 This variable conditionally defines USE_STDIO_PTR if this system
1946 has a FILE structure declaring usable _ptr and _cnt fields (or
1947 equivalent) in stdio.h.
1949 d_strchr (d_strchr.U):
1950 This variable conditionally defines HAS_STRCHR if strchr() and
1951 strrchr() are available for string searching.
1953 d_strcoll (d_strcoll.U):
1954 This variable conditionally defines HAS_STRCOLL if strcoll() is
1955 available to compare strings using collating information.
1957 d_strctcpy (d_strctcpy.U):
1958 This variable conditionally defines the USE_STRUCT_COPY symbol, which
1959 indicates to the C program that this C compiler knows how to copy
1962 d_strerrm (d_strerror.U):
1963 This variable holds what Strerrr is defined as to translate an error
1964 code condition into an error message string. It could be 'strerror'
1965 or a more complex macro emulating strrror with sys_errlist[], or the
1966 "unknown" string when both strerror and sys_errlist are missing.
1968 d_strerror (d_strerror.U):
1969 This variable conditionally defines HAS_STRERROR if strerror() is
1970 available to translate error numbers to strings.
1972 d_strerror_r (d_strerror_r.U):
1973 This variable conditionally defines the HAS_STRERROR_R symbol,
1974 which indicates to the C program that the strerror_r()
1975 routine is available.
1977 d_strftime (d_strftime.U):
1978 This variable conditionally defines the HAS_STRFTIME symbol, which
1979 indicates to the C program that the strftime() routine is available.
1981 d_strtod (d_strtod.U):
1982 This variable conditionally defines the HAS_STRTOD symbol, which
1983 indicates to the C program that the strtod() routine is available
1984 to provide better numeric string conversion than atof().
1986 d_strtol (d_strtol.U):
1987 This variable conditionally defines the HAS_STRTOL symbol, which
1988 indicates to the C program that the strtol() routine is available
1989 to provide better numeric string conversion than atoi() and friends.
1991 d_strtold (d_strtold.U):
1992 This variable conditionally defines the HAS_STRTOLD symbol, which
1993 indicates to the C program that the strtold() routine is available.
1995 d_strtoll (d_strtoll.U):
1996 This variable conditionally defines the HAS_STRTOLL symbol, which
1997 indicates to the C program that the strtoll() routine is available.
1999 d_strtoq (d_strtoq.U):
2000 This variable conditionally defines the HAS_STRTOQ symbol, which
2001 indicates to the C program that the strtoq() routine is available.
2003 d_strtoul (d_strtoul.U):
2004 This variable conditionally defines the HAS_STRTOUL symbol, which
2005 indicates to the C program that the strtoul() routine is available
2006 to provide conversion of strings to unsigned long.
2008 d_strtoull (d_strtoull.U):
2009 This variable conditionally defines the HAS_STRTOULL symbol, which
2010 indicates to the C program that the strtoull() routine is available.
2012 d_strtouq (d_strtouq.U):
2013 This variable conditionally defines the HAS_STRTOUQ symbol, which
2014 indicates to the C program that the strtouq() routine is available.
2016 d_strxfrm (d_strxfrm.U):
2017 This variable conditionally defines HAS_STRXFRM if strxfrm() is
2018 available to transform strings.
2020 d_suidsafe (d_dosuid.U):
2021 This variable conditionally defines SETUID_SCRIPTS_ARE_SECURE_NOW
2022 if setuid scripts can be secure. This test looks in /dev/fd/.
2024 d_symlink (d_symlink.U):
2025 This variable conditionally defines the HAS_SYMLINK symbol, which
2026 indicates to the C program that the symlink() routine is available
2027 to create symbolic links.
2029 d_syscall (d_syscall.U):
2030 This variable conditionally defines HAS_SYSCALL if syscall() is
2031 available call arbitrary system calls.
2033 d_syscallproto (d_syscallproto.U):
2034 This variable conditionally defines the HAS_SYSCALL_PROTO symbol,
2035 which indicates to the C program that the system provides
2036 a prototype for the syscall() function. Otherwise, it is
2037 up to the program to supply one.
2039 d_sysconf (d_sysconf.U):
2040 This variable conditionally defines the HAS_SYSCONF symbol, which
2041 indicates to the C program that the sysconf() routine is available
2042 to determine system related limits and options.
2044 d_sysernlst (d_strerror.U):
2045 This variable conditionally defines HAS_SYS_ERRNOLIST if sys_errnolist[]
2046 is available to translate error numbers to the symbolic name.
2048 d_syserrlst (d_strerror.U):
2049 This variable conditionally defines HAS_SYS_ERRLIST if sys_errlist[] is
2050 available to translate error numbers to strings.
2052 d_system (d_system.U):
2053 This variable conditionally defines HAS_SYSTEM if system() is
2054 available to issue a shell command.
2056 d_tcgetpgrp (d_tcgtpgrp.U):
2057 This variable conditionally defines the HAS_TCGETPGRP symbol, which
2058 indicates to the C program that the tcgetpgrp() routine is available.
2059 to get foreground process group ID.
2061 d_tcsetpgrp (d_tcstpgrp.U):
2062 This variable conditionally defines the HAS_TCSETPGRP symbol, which
2063 indicates to the C program that the tcsetpgrp() routine is available
2064 to set foreground process group ID.
2066 d_telldir (d_readdir.U):
2067 This variable conditionally defines HAS_TELLDIR if telldir() is
2070 d_telldirproto (d_telldirproto.U):
2071 This variable conditionally defines the HAS_TELLDIR_PROTO symbol,
2072 which indicates to the C program that the system provides
2073 a prototype for the telldir() function. Otherwise, it is
2074 up to the program to supply one.
2077 This variable conditionally defines the HAS_TIME symbol, which indicates
2078 that the time() routine exists. The time() routine is normaly
2079 provided on UNIX systems.
2081 d_times (d_times.U):
2082 This variable conditionally defines the HAS_TIMES symbol, which indicates
2083 that the times() routine exists. The times() routine is normaly
2084 provided on UNIX systems. You may have to include <sys/times.h>.
2086 d_tm_tm_gmtoff (i_time.U):
2087 This variable conditionally defines HAS_TM_TM_GMTOFF, which indicates
2088 indicates to the C program that the struct tm has the tm_gmtoff field.
2090 d_tm_tm_zone (i_time.U):
2091 This variable conditionally defines HAS_TM_TM_ZONE, which indicates
2092 indicates to the C program that the struct tm has the tm_zone field.
2094 d_tmpnam_r (d_tmpnam_r.U):
2095 This variable conditionally defines the HAS_TMPNAM_R symbol,
2096 which indicates to the C program that the tmpnam_r()
2097 routine is available.
2099 d_truncate (d_truncate.U):
2100 This variable conditionally defines HAS_TRUNCATE if truncate() is
2101 available to truncate files.
2103 d_ttyname_r (d_ttyname_r.U):
2104 This variable conditionally defines the HAS_TTYNAME_R symbol,
2105 which indicates to the C program that the ttyname_r()
2106 routine is available.
2108 d_tzname (d_tzname.U):
2109 This variable conditionally defines HAS_TZNAME if tzname[] is
2110 available to access timezone names.
2112 d_u32align (d_u32align.U):
2113 This variable tells whether you must access character data
2114 through U32-aligned pointers.
2116 d_ualarm (d_ualarm.U):
2117 This variable conditionally defines the HAS_UALARM symbol, which
2118 indicates to the C program that the ualarm() routine is available.
2120 d_umask (d_umask.U):
2121 This variable conditionally defines the HAS_UMASK symbol, which
2122 indicates to the C program that the umask() routine is available.
2123 to set and get the value of the file creation mask.
2125 d_uname (d_gethname.U):
2126 This variable conditionally defines the HAS_UNAME symbol, which
2127 indicates to the C program that the uname() routine may be
2128 used to derive the host name.
2130 d_union_semun (d_union_semun.U):
2131 This variable conditionally defines HAS_UNION_SEMUN if the
2132 union semun is defined by including <sys/sem.h>.
2134 d_unordered (d_unordered.U):
2135 This variable conditionally defines the HAS_UNORDERED symbol, which
2136 indicates to the C program that the unordered() routine is available.
2138 d_usleep (d_usleep.U):
2139 This variable conditionally defines HAS_USLEEP if usleep() is
2140 available to do high granularity sleeps.
2142 d_usleepproto (d_usleepproto.U):
2143 This variable conditionally defines the HAS_USLEEP_PROTO symbol,
2144 which indicates to the C program that the system provides
2145 a prototype for the usleep() function. Otherwise, it is
2146 up to the program to supply one.
2148 d_ustat (d_ustat.U):
2149 This variable conditionally defines HAS_USTAT if ustat() is
2150 available to query file system statistics by dev_t.
2152 d_vendorarch (vendorarch.U):
2153 This variable conditionally defined PERL_VENDORARCH.
2155 d_vendorbin (vendorbin.U):
2156 This variable conditionally defines PERL_VENDORBIN.
2158 d_vendorlib (vendorlib.U):
2159 This variable conditionally defines PERL_VENDORLIB.
2161 d_vendorscript (vendorscript.U):
2162 This variable conditionally defines PERL_VENDORSCRIPT.
2164 d_vfork (d_vfork.U):
2165 This variable conditionally defines the HAS_VFORK symbol, which
2166 indicates the vfork() routine is available.
2168 d_void_closedir (d_closedir.U):
2169 This variable conditionally defines VOID_CLOSEDIR if closedir()
2170 does not return a value.
2172 d_voidsig (d_voidsig.U):
2173 This variable conditionally defines VOIDSIG if this system
2174 declares "void (*signal(...))()" in signal.h. The old way was to
2175 declare it as "int (*signal(...))()".
2177 d_voidtty (i_sysioctl.U):
2178 This variable conditionally defines USE_IOCNOTTY to indicate that the
2179 ioctl() call with TIOCNOTTY should be used to void tty association.
2180 Otherwise (on USG probably), it is enough to close the standard file
2181 decriptors and do a setpgrp().
2183 d_volatile (d_volatile.U):
2184 This variable conditionally defines the HASVOLATILE symbol, which
2185 indicates to the C program that this C compiler knows about the
2186 volatile declaration.
2188 d_vprintf (d_vprintf.U):
2189 This variable conditionally defines the HAS_VPRINTF symbol, which
2190 indicates to the C program that the vprintf() routine is available
2191 to printf with a pointer to an argument list.
2193 d_wait4 (d_wait4.U):
2194 This variable conditionally defines the HAS_WAIT4 symbol, which
2195 indicates the wait4() routine is available.
2197 d_waitpid (d_waitpid.U):
2198 This variable conditionally defines HAS_WAITPID if waitpid() is
2199 available to wait for child process.
2201 d_wcstombs (d_wcstombs.U):
2202 This variable conditionally defines the HAS_WCSTOMBS symbol, which
2203 indicates to the C program that the wcstombs() routine is available
2204 to convert wide character strings to multibyte strings.
2206 d_wctomb (d_wctomb.U):
2207 This variable conditionally defines the HAS_WCTOMB symbol, which
2208 indicates to the C program that the wctomb() routine is available
2209 to convert a wide character to a multibyte.
2211 d_writev (d_writev.U):
2212 This variable conditionally defines the HAS_WRITEV symbol, which
2213 indicates to the C program that the writev() routine is available.
2216 This variable conditionally defines the symbol XENIX, which alerts
2217 the C program that it runs under Xenix.
2220 This variable is used internally by Configure to determine the
2221 full pathname (if any) of the date program. After Configure runs,
2222 the value is reset to a plain "date" and is not useful.
2224 db_hashtype (i_db.U):
2225 This variable contains the type of the hash structure element
2226 in the <db.h> header file. In older versions of DB, it was
2227 int, while in newer ones it is u_int32_t.
2229 db_prefixtype (i_db.U):
2230 This variable contains the type of the prefix structure element
2231 in the <db.h> header file. In older versions of DB, it was
2232 int, while in newer ones it is size_t.
2234 db_version_major (i_db.U):
2235 This variable contains the major version number of
2236 Berkeley DB found in the <db.h> header file.
2238 db_version_minor (i_db.U):
2239 This variable contains the minor version number of
2240 Berkeley DB found in the <db.h> header file.
2241 For DB version 1 this is always 0.
2243 db_version_patch (i_db.U):
2244 This variable contains the patch version number of
2245 Berkeley DB found in the <db.h> header file.
2246 For DB version 1 this is always 0.
2248 defvoidused (voidflags.U):
2249 This variable contains the default value of the VOIDUSED symbol (15).
2251 direntrytype (i_dirent.U):
2252 This symbol is set to 'struct direct' or 'struct dirent' depending on
2253 whether dirent is available or not. You should use this pseudo type to
2254 portably declare your directory entries.
2257 This variable contains the extension that is to be used for the
2258 dynamically loaded modules that perl generaties.
2261 This variable contains the name of the dynamic loading file that
2262 will be used with the package.
2264 doublesize (doublesize.U):
2265 This variable contains the value of the DOUBLESIZE symbol, which
2266 indicates to the C program how many bytes there are in a double.
2268 drand01 (randfunc.U):
2269 Indicates the macro to be used to generate normalized
2270 random numbers. Uses randfunc, often divided by
2271 (double) (((unsigned long) 1 << randbits)) in order to
2272 normalize the result.
2273 In C programs, the macro 'Drand01' is mapped to drand01.
2275 drand48_r_proto (d_drand48_r.U):
2276 This variable encodes the prototype of drand48_r.
2277 It is zero if d_drand48_r is undef, and one of the
2278 REENTRANT_PROTO_T_ABC macros of reentr.h if d_drand48_r
2281 dynamic_ext (Extensions.U):
2282 This variable holds a list of XS extension files we want to
2283 link dynamically into the package. It is used by Makefile.
2285 eagain (nblock_io.U):
2286 This variable bears the symbolic errno code set by read() when no
2287 data is present on the file and non-blocking I/O was enabled (otherwise,
2288 read() blocks naturally).
2291 This variable conditionally defines EBCDIC if this
2292 system uses EBCDIC encoding. Among other things, this
2293 means that the character ranges are not contiguous.
2297 This variable is used internally by Configure to determine the
2298 full pathname (if any) of the echo program. After Configure runs,
2299 the value is reset to a plain "echo" and is not useful.
2302 This variable is used internally by Configure to determine the
2303 full pathname (if any) of the egrep program. After Configure runs,
2304 the value is reset to a plain "egrep" and is not useful.
2307 This variable is defined but not used by Configure.
2308 The value is a plain '' and is not useful.
2310 endgrent_r_proto (d_endgrent_r.U):
2311 This variable encodes the prototype of endgrent_r.
2312 It is zero if d_endgrent_r is undef, and one of the
2313 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endgrent_r
2316 endhostent_r_proto (d_endhostent_r.U):
2317 This variable encodes the prototype of endhostent_r.
2318 It is zero if d_endhostent_r is undef, and one of the
2319 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endhostent_r
2322 endnetent_r_proto (d_endnetent_r.U):
2323 This variable encodes the prototype of endnetent_r.
2324 It is zero if d_endnetent_r is undef, and one of the
2325 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endnetent_r
2328 endprotoent_r_proto (d_endprotoent_r.U):
2329 This variable encodes the prototype of endprotoent_r.
2330 It is zero if d_endprotoent_r is undef, and one of the
2331 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endprotoent_r
2334 endpwent_r_proto (d_endpwent_r.U):
2335 This variable encodes the prototype of endpwent_r.
2336 It is zero if d_endpwent_r is undef, and one of the
2337 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endpwent_r
2340 endservent_r_proto (d_endservent_r.U):
2341 This variable encodes the prototype of endservent_r.
2342 It is zero if d_endservent_r is undef, and one of the
2343 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endservent_r
2347 When running under Eunice this variable contains a command which will
2348 convert a shell script to the proper form of text file for it to be
2349 executable by the shell. On other systems it is a no-op.
2352 This is an old synonym for _exe.
2355 This variable is used internally by Configure to determine the
2356 full pathname (if any) of the expr program. After Configure runs,
2357 the value is reset to a plain "expr" and is not useful.
2359 extensions (Extensions.U):
2360 This variable holds a list of all extension files (both XS and
2361 non-xs linked into the package. It is propagated to Config.pm
2362 and is typically used to test whether a particular extesion
2366 This variable holds a list of extra modules to install.
2368 fflushall (fflushall.U):
2369 This symbol, if defined, tells that to flush
2370 all pending stdio output one must loop through all
2371 the stdio file handles stored in an array and fflush them.
2372 Note that if fflushNULL is defined, fflushall will not
2373 even be probed for and will be left undefined.
2375 fflushNULL (fflushall.U):
2376 This symbol, if defined, tells that fflush(NULL) does flush
2377 all pending stdio output.
2380 This variable is defined but not used by Configure.
2381 The value is a plain '' and is not useful.
2383 firstmakefile (Unix.U):
2384 This variable defines the first file searched by make. On unix,
2385 it is makefile (then Makefile). On case-insensitive systems,
2386 it might be something else. This is only used to deal with
2387 convoluted make depend tricks.
2390 This variable is defined but not used by Configure.
2391 The value is a plain '' and is not useful.
2393 fpossize (fpossize.U):
2394 This variable contains the size of a fpostype in bytes.
2396 fpostype (fpostype.U):
2397 This variable defines Fpos_t to be something like fpos_t, long,
2398 uint, or whatever type is used to declare file positions in libc.
2400 freetype (mallocsrc.U):
2401 This variable contains the return type of free(). It is usually
2402 void, but occasionally int.
2405 This variable contains the command used by Configure
2406 to copy files from the target host. Useful and available
2407 only during Perl build.
2408 The string ':' if not cross-compiling.
2411 This variable contains the full pathname to 'ar', whether or
2412 not the user has specified 'portability'. This is only used
2416 This variable contains the full pathname to 'csh', whether or
2417 not the user has specified 'portability'. This is only used
2418 in the compiled C program, and we assume that all systems which
2419 can share this executable will have the same full pathname to
2422 full_sed (Loc_sed.U):
2423 This variable contains the full pathname to 'sed', whether or
2424 not the user has specified 'portability'. This is only used
2425 in the compiled C program, and we assume that all systems which
2426 can share this executable will have the same full pathname to
2429 gccansipedantic (gccvers.U):
2430 If GNU cc (gcc) is used, this variable will enable (if set) the
2431 -ansi and -pedantic ccflags for building core files (through
2432 cflags script). (See Porting/pumpkin.pod for full description).
2434 gccosandvers (gccvers.U):
2435 If GNU cc (gcc) is used, this variable holds the operating system
2436 and version used to compile gcc. It is set to '' if not gcc,
2437 or if nothing useful can be parsed as the os version.
2439 gccversion (gccvers.U):
2440 If GNU cc (gcc) is used, this variable holds '1' or '2' to
2441 indicate whether the compiler is version 1 or 2. This is used in
2442 setting some of the default cflags. It is set to '' if not gcc.
2444 getgrent_r_proto (d_getgrent_r.U):
2445 This variable encodes the prototype of getgrent_r.
2446 It is zero if d_getgrent_r is undef, and one of the
2447 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrent_r
2450 getgrgid_r_proto (d_getgrgid_r.U):
2451 This variable encodes the prototype of getgrgid_r.
2452 It is zero if d_getgrgid_r is undef, and one of the
2453 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrgid_r
2456 getgrnam_r_proto (d_getgrnam_r.U):
2457 This variable encodes the prototype of getgrnam_r.
2458 It is zero if d_getgrnam_r is undef, and one of the
2459 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrnam_r
2462 gethostbyaddr_r_proto (d_gethostbyaddr_r.U):
2463 This variable encodes the prototype of gethostbyaddr_r.
2464 It is zero if d_gethostbyaddr_r is undef, and one of the
2465 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyaddr_r
2468 gethostbyname_r_proto (d_gethostbyname_r.U):
2469 This variable encodes the prototype of gethostbyname_r.
2470 It is zero if d_gethostbyname_r is undef, and one of the
2471 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyname_r
2474 gethostent_r_proto (d_gethostent_r.U):
2475 This variable encodes the prototype of gethostent_r.
2476 It is zero if d_gethostent_r is undef, and one of the
2477 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostent_r
2480 getlogin_r_proto (d_getlogin_r.U):
2481 This variable encodes the prototype of getlogin_r.
2482 It is zero if d_getlogin_r is undef, and one of the
2483 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getlogin_r
2486 getnetbyaddr_r_proto (d_getnetbyaddr_r.U):
2487 This variable encodes the prototype of getnetbyaddr_r.
2488 It is zero if d_getnetbyaddr_r is undef, and one of the
2489 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyaddr_r
2492 getnetbyname_r_proto (d_getnetbyname_r.U):
2493 This variable encodes the prototype of getnetbyname_r.
2494 It is zero if d_getnetbyname_r is undef, and one of the
2495 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyname_r
2498 getnetent_r_proto (d_getnetent_r.U):
2499 This variable encodes the prototype of getnetent_r.
2500 It is zero if d_getnetent_r is undef, and one of the
2501 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetent_r
2504 getprotobyname_r_proto (d_getprotobyname_r.U):
2505 This variable encodes the prototype of getprotobyname_r.
2506 It is zero if d_getprotobyname_r is undef, and one of the
2507 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobyname_r
2510 getprotobynumber_r_proto (d_getprotobynumber_r.U):
2511 This variable encodes the prototype of getprotobynumber_r.
2512 It is zero if d_getprotobynumber_r is undef, and one of the
2513 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobynumber_r
2516 getprotoent_r_proto (d_getprotoent_r.U):
2517 This variable encodes the prototype of getprotoent_r.
2518 It is zero if d_getprotoent_r is undef, and one of the
2519 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotoent_r
2522 getpwent_r_proto (d_getpwent_r.U):
2523 This variable encodes the prototype of getpwent_r.
2524 It is zero if d_getpwent_r is undef, and one of the
2525 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwent_r
2528 getpwnam_r_proto (d_getpwnam_r.U):
2529 This variable encodes the prototype of getpwnam_r.
2530 It is zero if d_getpwnam_r is undef, and one of the
2531 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwnam_r
2534 getpwuid_r_proto (d_getpwuid_r.U):
2535 This variable encodes the prototype of getpwuid_r.
2536 It is zero if d_getpwuid_r is undef, and one of the
2537 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwuid_r
2540 getservbyname_r_proto (d_getservbyname_r.U):
2541 This variable encodes the prototype of getservbyname_r.
2542 It is zero if d_getservbyname_r is undef, and one of the
2543 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyname_r
2546 getservbyport_r_proto (d_getservbyport_r.U):
2547 This variable encodes the prototype of getservbyport_r.
2548 It is zero if d_getservbyport_r is undef, and one of the
2549 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyport_r
2552 getservent_r_proto (d_getservent_r.U):
2553 This variable encodes the prototype of getservent_r.
2554 It is zero if d_getservent_r is undef, and one of the
2555 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservent_r
2558 getspnam_r_proto (d_getspnam_r.U):
2559 This variable encodes the prototype of getspnam_r.
2560 It is zero if d_getspnam_r is undef, and one of the
2561 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getspnam_r
2565 This variable contains the format string used for printing a Gid_t.
2567 gidsign (gidsign.U):
2568 This variable contains the signedness of a gidtype.
2569 1 for unsigned, -1 for signed.
2571 gidsize (gidsize.U):
2572 This variable contains the size of a gidtype in bytes.
2574 gidtype (gidtype.U):
2575 This variable defines Gid_t to be something like gid_t, int,
2576 ushort, or whatever type is used to declare the return type
2577 of getgid(). Typically, it is the type of group ids in the kernel.
2580 This variable holds the general path (space-separated) used to
2581 find libraries. It may contain directories that do not exist on
2582 this platform, libpth is the cleaned-up version.
2585 This variable is used internally by Configure to determine the
2586 full pathname (if any) of the gmake program. After Configure runs,
2587 the value is reset to a plain "gmake" and is not useful.
2589 gmtime_r_proto (d_gmtime_r.U):
2590 This variable encodes the prototype of gmtime_r.
2591 It is zero if d_gmtime_r is undef, and one of the
2592 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gmtime_r
2595 gnulibc_version (d_gnulibc.U):
2596 This variable contains the version number of the GNU C library.
2597 It is usually something like '2.2.5'. It is a plain '' if this
2598 is not the GNU C library, or if the version is unknown.
2601 This variable is used internally by Configure to determine the
2602 full pathname (if any) of the grep program. After Configure runs,
2603 the value is reset to a plain "grep" and is not useful.
2606 This variable contains a command that produces the text of the
2607 /etc/group file. This is normally "cat /etc/group", but can be
2608 "ypcat group" when NIS is used.
2609 On some systems, such as os390, there may be no equivalent
2610 command, in which case this variable is unset.
2612 groupstype (groupstype.U):
2613 This variable defines Groups_t to be something like gid_t, int,
2614 ushort, or whatever type is used for the second argument to
2615 getgroups() and setgroups(). Usually, this is the same as
2616 gidtype (gid_t), but sometimes it isn't.
2619 This variable is used internally by Configure to determine the
2620 full pathname (if any) of the gzip program. After Configure runs,
2621 the value is reset to a plain "gzip" and is not useful.
2623 h_fcntl (h_fcntl.U):
2624 This is variable gets set in various places to tell i_fcntl that
2625 <fcntl.h> should be included.
2627 h_sysfile (h_sysfile.U):
2628 This is variable gets set in various places to tell i_sys_file that
2629 <sys/file.h> should be included.
2632 Gives the type of hints used for previous answers. May be one of
2633 "default", "recommended" or "previous".
2636 This variable contains a command that produces the text of the
2637 /etc/hosts file. This is normally "cat /etc/hosts", but can be
2638 "ypcat hosts" when NIS is used.
2639 On some systems, such as os390, there may be no equivalent
2640 command, in which case this variable is unset.
2642 html1dir (html1dir.U):
2643 This variable contains the name of the directory in which html
2644 source pages are to be put. This directory is for pages
2645 that describe whole programs, not libraries or modules. It
2646 is intended to correspond roughly to section 1 of the Unix
2649 html1direxp (html1dir.U):
2650 This variable is the same as the html1dir variable, but is filename
2651 expanded at configuration time, for convenient use in makefiles.
2653 html3dir (html3dir.U):
2654 This variable contains the name of the directory in which html
2655 source pages are to be put. This directory is for pages
2656 that describe libraries or modules. It is intended to
2657 correspond roughly to section 3 of the Unix manuals.
2659 html3direxp (html3dir.U):
2660 This variable is the same as the html3dir variable, but is filename
2661 expanded at configuration time, for convenient use in makefiles.
2664 This variable is the size of an I16 in bytes.
2667 This variable contains the C type used for Perl's I16.
2670 This variable is the size of an I32 in bytes.
2673 This variable contains the C type used for Perl's I32.
2676 This variable is the size of an I64 in bytes.
2679 This variable contains the C type used for Perl's I64.
2682 This variable is the size of an I8 in bytes.
2685 This variable contains the C type used for Perl's I8.
2687 i_arpainet (i_arpainet.U):
2688 This variable conditionally defines the I_ARPA_INET symbol,
2689 and indicates whether a C program should include <arpa/inet.h>.
2691 i_bsdioctl (i_sysioctl.U):
2692 This variable conditionally defines the I_SYS_BSDIOCTL symbol, which
2693 indicates to the C program that <sys/bsdioctl.h> exists and should
2696 i_crypt (i_crypt.U):
2697 This variable conditionally defines the I_CRYPT symbol, and indicates
2698 whether a C program should include <crypt.h>.
2701 This variable conditionally defines the I_DB symbol, and indicates
2702 whether a C program may include Berkeley's DB include file <db.h>.
2705 This variable conditionally defines the I_DBM symbol, which
2706 indicates to the C program that <dbm.h> exists and should
2709 i_dirent (i_dirent.U):
2710 This variable conditionally defines I_DIRENT, which indicates
2711 to the C program that it should include <dirent.h>.
2714 This variable conditionally defines the I_DLD symbol, which
2715 indicates to the C program that <dld.h> (GNU dynamic loading)
2716 exists and should be included.
2718 i_dlfcn (i_dlfcn.U):
2719 This variable conditionally defines the I_DLFCN symbol, which
2720 indicates to the C program that <dlfcn.h> exists and should
2723 i_fcntl (i_fcntl.U):
2724 This variable controls the value of I_FCNTL (which tells
2725 the C program to include <fcntl.h>).
2727 i_float (i_float.U):
2728 This variable conditionally defines the I_FLOAT symbol, and indicates
2729 whether a C program may include <float.h> to get symbols like DBL_MAX
2730 or DBL_MIN, i.e. machine dependent floating point values.
2733 This variable conditionally defines the I_FP symbol, and indicates
2734 whether a C program should include <fp.h>.
2736 i_fp_class (i_fp_class.U):
2737 This variable conditionally defines the I_FP_CLASS symbol, and indicates
2738 whether a C program should include <fp_class.h>.
2741 This variable conditionally defines the I_GDBM symbol, which
2742 indicates to the C program that <gdbm.h> exists and should
2746 This variable conditionally defines the I_GRP symbol, and indicates
2747 whether a C program should include <grp.h>.
2749 i_ieeefp (i_ieeefp.U):
2750 This variable conditionally defines the I_IEEEFP symbol, and indicates
2751 whether a C program should include <ieeefp.h>.
2753 i_inttypes (i_inttypes.U):
2754 This variable conditionally defines the I_INTTYPES symbol,
2755 and indicates whether a C program should include <inttypes.h>.
2757 i_langinfo (i_langinfo.U):
2758 This variable conditionally defines the I_LANGINFO symbol,
2759 and indicates whether a C program should include <langinfo.h>.
2761 i_libutil (i_libutil.U):
2762 This variable conditionally defines the I_LIBUTIL symbol, and indicates
2763 whether a C program should include <libutil.h>.
2765 i_limits (i_limits.U):
2766 This variable conditionally defines the I_LIMITS symbol, and indicates
2767 whether a C program may include <limits.h> to get symbols like WORD_BIT
2770 i_locale (i_locale.U):
2771 This variable conditionally defines the I_LOCALE symbol,
2772 and indicates whether a C program should include <locale.h>.
2774 i_machcthr (i_machcthr.U):
2775 This variable conditionally defines the I_MACH_CTHREADS symbol,
2776 and indicates whether a C program should include <mach/cthreads.h>.
2778 i_malloc (i_malloc.U):
2779 This variable conditionally defines the I_MALLOC symbol, and indicates
2780 whether a C program should include <malloc.h>.
2783 This variable conditionally defines the I_MATH symbol, and indicates
2784 whether a C program may include <math.h>.
2786 i_memory (i_memory.U):
2787 This variable conditionally defines the I_MEMORY symbol, and indicates
2788 whether a C program should include <memory.h>.
2790 i_mntent (i_mntent.U):
2791 This variable conditionally defines the I_MNTENT symbol, and indicates
2792 whether a C program should include <mntent.h>.
2795 This variable conditionally defines the I_NDBM symbol, which
2796 indicates to the C program that <ndbm.h> exists and should
2799 i_netdb (i_netdb.U):
2800 This variable conditionally defines the I_NETDB symbol, and indicates
2801 whether a C program should include <netdb.h>.
2803 i_neterrno (i_neterrno.U):
2804 This variable conditionally defines the I_NET_ERRNO symbol, which
2805 indicates to the C program that <net/errno.h> exists and should
2808 i_netinettcp (i_netinettcp.U):
2809 This variable conditionally defines the I_NETINET_TCP symbol,
2810 and indicates whether a C program should include <netinet/tcp.h>.
2813 This variable conditionally defines I_NETINET_IN, which indicates
2814 to the C program that it should include <netinet/in.h>. Otherwise,
2815 you may try <sys/in.h>.
2818 This variable conditionally defines the I_POLL symbol, and indicates
2819 whether a C program should include <poll.h>.
2822 This variable conditionally defines the I_PROT symbol, and indicates
2823 whether a C program should include <prot.h>.
2825 i_pthread (i_pthread.U):
2826 This variable conditionally defines the I_PTHREAD symbol,
2827 and indicates whether a C program should include <pthread.h>.
2830 This variable conditionally defines I_PWD, which indicates
2831 to the C program that it should include <pwd.h>.
2833 i_rpcsvcdbm (i_dbm.U):
2834 This variable conditionally defines the I_RPCSVC_DBM symbol, which
2835 indicates to the C program that <rpcsvc/dbm.h> exists and should
2836 be included. Some System V systems might need this instead of <dbm.h>.
2839 This variable conditionally defines the I_SFIO symbol,
2840 and indicates whether a C program should include <sfio.h>.
2842 i_sgtty (i_termio.U):
2843 This variable conditionally defines the I_SGTTY symbol, which
2844 indicates to the C program that it should include <sgtty.h> rather
2847 i_shadow (i_shadow.U):
2848 This variable conditionally defines the I_SHADOW symbol, and indicates
2849 whether a C program should include <shadow.h>.
2851 i_socks (i_socks.U):
2852 This variable conditionally defines the I_SOCKS symbol, and indicates
2853 whether a C program should include <socks.h>.
2855 i_stdarg (i_varhdr.U):
2856 This variable conditionally defines the I_STDARG symbol, which
2857 indicates to the C program that <stdarg.h> exists and should
2860 i_stddef (i_stddef.U):
2861 This variable conditionally defines the I_STDDEF symbol, which
2862 indicates to the C program that <stddef.h> exists and should
2865 i_stdlib (i_stdlib.U):
2866 This variable conditionally defines the I_STDLIB symbol, which
2867 indicates to the C program that <stdlib.h> exists and should
2870 i_string (i_string.U):
2871 This variable conditionally defines the I_STRING symbol, which
2872 indicates that <string.h> should be included rather than <strings.h>.
2874 i_sunmath (i_sunmath.U):
2875 This variable conditionally defines the I_SUNMATH symbol, and indicates
2876 whether a C program should include <sunmath.h>.
2878 i_sysaccess (i_sysaccess.U):
2879 This variable conditionally defines the I_SYS_ACCESS symbol,
2880 and indicates whether a C program should include <sys/access.h>.
2882 i_sysdir (i_sysdir.U):
2883 This variable conditionally defines the I_SYS_DIR symbol, and indicates
2884 whether a C program should include <sys/dir.h>.
2886 i_sysfile (i_sysfile.U):
2887 This variable conditionally defines the I_SYS_FILE symbol, and indicates
2888 whether a C program should include <sys/file.h> to get R_OK and friends.
2890 i_sysfilio (i_sysioctl.U):
2891 This variable conditionally defines the I_SYS_FILIO symbol, which
2892 indicates to the C program that <sys/filio.h> exists and should
2893 be included in preference to <sys/ioctl.h>.
2896 This variable conditionally defines I_SYS_IN, which indicates
2897 to the C program that it should include <sys/in.h> instead of
2900 i_sysioctl (i_sysioctl.U):
2901 This variable conditionally defines the I_SYS_IOCTL symbol, which
2902 indicates to the C program that <sys/ioctl.h> exists and should
2905 i_syslog (i_syslog.U):
2906 This variable conditionally defines the I_SYSLOG symbol,
2907 and indicates whether a C program should include <syslog.h>.
2909 i_sysmman (i_sysmman.U):
2910 This variable conditionally defines the I_SYS_MMAN symbol, and
2911 indicates whether a C program should include <sys/mman.h>.
2913 i_sysmode (i_sysmode.U):
2914 This variable conditionally defines the I_SYSMODE symbol,
2915 and indicates whether a C program should include <sys/mode.h>.
2917 i_sysmount (i_sysmount.U):
2918 This variable conditionally defines the I_SYSMOUNT symbol,
2919 and indicates whether a C program should include <sys/mount.h>.
2921 i_sysndir (i_sysndir.U):
2922 This variable conditionally defines the I_SYS_NDIR symbol, and indicates
2923 whether a C program should include <sys/ndir.h>.
2925 i_sysparam (i_sysparam.U):
2926 This variable conditionally defines the I_SYS_PARAM symbol, and indicates
2927 whether a C program should include <sys/param.h>.
2929 i_sysresrc (i_sysresrc.U):
2930 This variable conditionally defines the I_SYS_RESOURCE symbol,
2931 and indicates whether a C program should include <sys/resource.h>.
2933 i_syssecrt (i_syssecrt.U):
2934 This variable conditionally defines the I_SYS_SECURITY symbol,
2935 and indicates whether a C program should include <sys/security.h>.
2937 i_sysselct (i_sysselct.U):
2938 This variable conditionally defines I_SYS_SELECT, which indicates
2939 to the C program that it should include <sys/select.h> in order to
2940 get the definition of struct timeval.
2942 i_syssockio (i_sysioctl.U):
2943 This variable conditionally defines I_SYS_SOCKIO to indicate to the
2944 C program that socket ioctl codes may be found in <sys/sockio.h>
2945 instead of <sys/ioctl.h>.
2947 i_sysstat (i_sysstat.U):
2948 This variable conditionally defines the I_SYS_STAT symbol,
2949 and indicates whether a C program should include <sys/stat.h>.
2951 i_sysstatfs (i_sysstatfs.U):
2952 This variable conditionally defines the I_SYSSTATFS symbol,
2953 and indicates whether a C program should include <sys/statfs.h>.
2955 i_sysstatvfs (i_sysstatvfs.U):
2956 This variable conditionally defines the I_SYSSTATVFS symbol,
2957 and indicates whether a C program should include <sys/statvfs.h>.
2959 i_systime (i_time.U):
2960 This variable conditionally defines I_SYS_TIME, which indicates
2961 to the C program that it should include <sys/time.h>.
2963 i_systimek (i_time.U):
2964 This variable conditionally defines I_SYS_TIME_KERNEL, which
2965 indicates to the C program that it should include <sys/time.h>
2966 with KERNEL defined.
2968 i_systimes (i_systimes.U):
2969 This variable conditionally defines the I_SYS_TIMES symbol, and indicates
2970 whether a C program should include <sys/times.h>.
2972 i_systypes (i_systypes.U):
2973 This variable conditionally defines the I_SYS_TYPES symbol,
2974 and indicates whether a C program should include <sys/types.h>.
2976 i_sysuio (i_sysuio.U):
2977 This variable conditionally defines the I_SYSUIO symbol, and indicates
2978 whether a C program should include <sys/uio.h>.
2980 i_sysun (i_sysun.U):
2981 This variable conditionally defines I_SYS_UN, which indicates
2982 to the C program that it should include <sys/un.h> to get UNIX
2983 domain socket definitions.
2985 i_sysutsname (i_sysutsname.U):
2986 This variable conditionally defines the I_SYSUTSNAME symbol,
2987 and indicates whether a C program should include <sys/utsname.h>.
2989 i_sysvfs (i_sysvfs.U):
2990 This variable conditionally defines the I_SYSVFS symbol,
2991 and indicates whether a C program should include <sys/vfs.h>.
2993 i_syswait (i_syswait.U):
2994 This variable conditionally defines I_SYS_WAIT, which indicates
2995 to the C program that it should include <sys/wait.h>.
2997 i_termio (i_termio.U):
2998 This variable conditionally defines the I_TERMIO symbol, which
2999 indicates to the C program that it should include <termio.h> rather
3002 i_termios (i_termio.U):
3003 This variable conditionally defines the I_TERMIOS symbol, which
3004 indicates to the C program that the POSIX <termios.h> file is
3008 This variable conditionally defines I_TIME, which indicates
3009 to the C program that it should include <time.h>.
3011 i_unistd (i_unistd.U):
3012 This variable conditionally defines the I_UNISTD symbol, and indicates
3013 whether a C program should include <unistd.h>.
3015 i_ustat (i_ustat.U):
3016 This variable conditionally defines the I_USTAT symbol, and indicates
3017 whether a C program should include <ustat.h>.
3019 i_utime (i_utime.U):
3020 This variable conditionally defines the I_UTIME symbol, and indicates
3021 whether a C program should include <utime.h>.
3023 i_values (i_values.U):
3024 This variable conditionally defines the I_VALUES symbol, and indicates
3025 whether a C program may include <values.h> to get symbols like MAXLONG
3028 i_varargs (i_varhdr.U):
3029 This variable conditionally defines I_VARARGS, which indicates
3030 to the C program that it should include <varargs.h>.
3032 i_varhdr (i_varhdr.U):
3033 Contains the name of the header to be included to get va_dcl definition.
3034 Typically one of varargs.h or stdarg.h.
3036 i_vfork (i_vfork.U):
3037 This variable conditionally defines the I_VFORK symbol, and indicates
3038 whether a C program should include vfork.h.
3040 ignore_versioned_solibs (libs.U):
3041 This variable should be non-empty if non-versioned shared
3042 libraries (libfoo.so.x.y) are to be ignored (because they
3043 cannot be linked against).
3045 inc_version_list (inc_version_list.U):
3046 This variable specifies the list of subdirectories in over
3047 which perl.c:incpush() and lib/lib.pm will automatically
3048 search when adding directories to @INC. The elements in
3049 the list are separated by spaces. This is only useful
3050 if you have a perl library directory tree structured like the
3051 default one. See INSTALL for how this works. The versioned
3052 site_perl directory was introduced in 5.005, so that is the
3053 lowest possible value.
3055 inc_version_list_init (inc_version_list.U):
3056 This variable holds the same list as inc_version_list, but
3057 each item is enclosed in double quotes and separated by commas,
3058 suitable for use in the PERL_INC_VERSION_LIST initialization.
3061 This variable must preceed the normal include path to get hte
3062 right one, as in "$incpath/usr/include" or "$incpath/usr/lib".
3063 Value can be "" or "/bsd43" on mips.
3066 This variable is defined but not used by Configure.
3067 The value is a plain '' and is not useful.
3069 installarchlib (archlib.U):
3070 This variable is really the same as archlibexp but may differ on
3071 those systems using AFS. For extra portability, only this variable
3072 should be used in makefiles.
3075 This variable is the same as binexp unless AFS is running in which case
3076 the user is explicitely prompted for it. This variable should always
3077 be used in your makefiles for maximum portability.
3079 installhtml1dir (html1dir.U):
3080 This variable is really the same as html1direxp, unless you are
3081 using a different installprefix. For extra portability, you
3082 should only use this variable within your makefiles.
3084 installhtml3dir (html3dir.U):
3085 This variable is really the same as html3direxp, unless you are
3086 using a different installprefix. For extra portability, you
3087 should only use this variable within your makefiles.
3089 installman1dir (man1dir.U):
3090 This variable is really the same as man1direxp, unless you are using
3091 AFS in which case it points to the read/write location whereas
3092 man1direxp only points to the read-only access location. For extra
3093 portability, you should only use this variable within your makefiles.
3095 installman3dir (man3dir.U):
3096 This variable is really the same as man3direxp, unless you are using
3097 AFS in which case it points to the read/write location whereas
3098 man3direxp only points to the read-only access location. For extra
3099 portability, you should only use this variable within your makefiles.
3101 installprefix (installprefix.U):
3102 This variable holds the name of the directory below which
3103 "make install" will install the package. For most users, this
3104 is the same as prefix. However, it is useful for
3105 installing the software into a different (usually temporary)
3106 location after which it can be bundled up and moved somehow
3107 to the final location specified by prefix.
3109 installprefixexp (installprefix.U):
3110 This variable holds the full absolute path of installprefix
3111 with all ~-expansion done.
3113 installprivlib (privlib.U):
3114 This variable is really the same as privlibexp but may differ on
3115 those systems using AFS. For extra portability, only this variable
3116 should be used in makefiles.
3118 installscript (scriptdir.U):
3119 This variable is usually the same as scriptdirexp, unless you are on
3120 a system running AFS, in which case they may differ slightly. You
3121 should always use this variable within your makefiles for portability.
3123 installsitearch (sitearch.U):
3124 This variable is really the same as sitearchexp but may differ on
3125 those systems using AFS. For extra portability, only this variable
3126 should be used in makefiles.
3128 installsitebin (sitebin.U):
3129 This variable is usually the same as sitebinexp, unless you are on
3130 a system running AFS, in which case they may differ slightly. You
3131 should always use this variable within your makefiles for portability.
3133 installsitehtml1 (sitehtml1.U):
3134 This variable is really the same as sitehtml1exp, unless you are using
3135 AFS in which case it points to the read/write location whereas
3136 html1direxp only points to the read-only access location. For extra
3137 portability, you should only use this variable within your makefiles.
3139 installsitehtml3 (sitehtml3.U):
3140 This variable is really the same as sitehtml3exp, unless you are using
3141 AFS in which case it points to the read/write location whereas
3142 html3direxp only points to the read-only access location. For extra
3143 portability, you should only use this variable within your makefiles.
3145 installsitelib (sitelib.U):
3146 This variable is really the same as sitelibexp but may differ on
3147 those systems using AFS. For extra portability, only this variable
3148 should be used in makefiles.
3150 installsiteman1 (siteman1.U):
3151 This variable is really the same as siteman1exp, unless you are using
3152 AFS in which case it points to the read/write location whereas
3153 man1direxp only points to the read-only access location. For extra
3154 portability, you should only use this variable within your makefiles.
3156 installsiteman3 (siteman3.U):
3157 This variable is really the same as siteman3exp, unless you are using
3158 AFS in which case it points to the read/write location whereas
3159 man3direxp only points to the read-only access location. For extra
3160 portability, you should only use this variable within your makefiles.
3162 installsitescript (sitescript.U):
3163 This variable is usually the same as sitescriptexp, unless you are on
3164 a system running AFS, in which case they may differ slightly. You
3165 should always use this variable within your makefiles for portability.
3167 installstyle (installstyle.U):
3168 This variable describes the "style" of the perl installation.
3169 This is intended to be useful for tools that need to
3170 manipulate entire perl distributions. Perl itself doesn't use
3171 this to find its libraries -- the library directories are
3172 stored directly in Config.pm. Currently, there are only two
3173 styles: "lib" and "lib/perl5". The default library locations
3174 (e.g. privlib, sitelib) are either $prefix/lib or
3175 $prefix/lib/perl5. The former is useful if $prefix is a
3176 directory dedicated to perl (e.g. /opt/perl), while the latter
3177 is useful if $prefix is shared by many packages, e.g. if
3180 Unfortunately, while this "style" variable is used to set
3181 defaults for all three directory hierarchies (core, vendor, and
3182 site), there is no guarantee that the same style is actually
3183 appropriate for all those directories. For example, $prefix
3184 might be /opt/perl, but $siteprefix might be /usr/local.
3185 (Perhaps, in retrospect, the "lib" style should never have been
3186 supported, but it did seem like a nice idea at the time.)
3188 The situation is even less clear for tools such as MakeMaker
3189 that can be used to install additional modules into
3190 non-standard places. For example, if a user intends to install
3191 a module into a private directory (perhaps by setting PREFIX on
3192 the Makefile.PL command line), then there is no reason to
3193 assume that the Configure-time $installstyle setting will be
3194 relevant for that PREFIX.
3196 This may later be extended to include other information, so
3197 be careful with pattern-matching on the results.
3199 For compatibility with perl5.005 and earlier, the default
3200 setting is based on whether or not $prefix contains the string
3203 installusrbinperl (instubperl.U):
3204 This variable tells whether Perl should be installed also as
3205 /usr/bin/perl in addition to
3208 installvendorarch (vendorarch.U):
3209 This variable is really the same as vendorarchexp but may differ on
3210 those systems using AFS. For extra portability, only this variable
3211 should be used in makefiles.
3213 installvendorbin (vendorbin.U):
3214 This variable is really the same as vendorbinexp but may differ on
3215 those systems using AFS. For extra portability, only this variable
3216 should be used in makefiles.
3218 installvendorhtml1 (vendorhtml1.U):
3219 This variable is really the same as vendorhtml1exp but may differ on
3220 those systems using AFS. For extra portability, only this variable
3221 should be used in makefiles.
3223 installvendorhtml3 (vendorhtml3.U):
3224 This variable is really the same as vendorhtml3exp but may differ on
3225 those systems using AFS. For extra portability, only this variable
3226 should be used in makefiles.
3228 installvendorlib (vendorlib.U):
3229 This variable is really the same as vendorlibexp but may differ on
3230 those systems using AFS. For extra portability, only this variable
3231 should be used in makefiles.
3233 installvendorman1 (vendorman1.U):
3234 This variable is really the same as vendorman1exp but may differ on
3235 those systems using AFS. For extra portability, only this variable
3236 should be used in makefiles.
3238 installvendorman3 (vendorman3.U):
3239 This variable is really the same as vendorman3exp but may differ on
3240 those systems using AFS. For extra portability, only this variable
3241 should be used in makefiles.
3243 installvendorscript (vendorscript.U):
3244 This variable is really the same as vendorscriptexp but may differ on
3245 those systems using AFS. For extra portability, only this variable
3246 should be used in makefiles.
3248 intsize (intsize.U):
3249 This variable contains the value of the INTSIZE symbol, which
3250 indicates to the C program how many bytes there are in an int.
3252 issymlink (issymlink.U):
3253 This variable holds the test command to test for a symbolic link
3254 (if they are supported). Typical values include 'test -h' and
3257 ivdformat (perlxvf.U):
3258 This variable contains the format string used for printing
3259 a Perl IV as a signed decimal integer.
3262 This variable is the size of an IV in bytes.
3265 This variable contains the C type used for Perl's IV.
3267 known_extensions (Extensions.U):
3268 This variable holds a list of all XS extensions included in
3272 This variable is defined but not used by Configure.
3273 The value is a plain '' and is not useful.
3276 This variable indicates the program to be used to link
3277 libraries for dynamic loading. On some systems, it is 'ld'.
3278 On ELF systems, it should be $cc. Mostly, we'll try to respect
3279 the hint file setting.
3281 lddlflags (dlsrc.U):
3282 This variable contains any special flags that might need to be
3283 passed to $ld to create a shared library suitable for dynamic
3284 loading. It is up to the makefile to use it. For hpux, it
3285 should be '-b'. For sunos 4.1, it is empty.
3287 ldflags (ccflags.U):
3288 This variable contains any additional C loader flags desired by
3289 the user. It is up to the Makefile to use this.
3291 ldflags_uselargefiles (uselfs.U):
3292 This variable contains the loader flags needed by large file builds
3293 and added to ldflags by hints files.
3295 ldlibpthname (libperl.U):
3296 This variable holds the name of the shared library
3297 search path, often LD_LIBRARY_PATH. To get an empty
3298 string, the hints file must set this to 'none'.
3301 This variable is used internally by Configure to determine the
3302 full pathname (if any) of the less program. After Configure runs,
3303 the value is reset to a plain "less" and is not useful.
3306 This is an old synonym for _a.
3309 This variable contains the location of the C library.
3311 libperl (libperl.U):
3312 The perl executable is obtained by linking perlmain.c with
3313 libperl, any static extensions (usually just DynaLoader),
3314 and any other libraries needed on this system. libperl
3315 is usually libperl.a, but can also be libperl.so.xxx if
3316 the user wishes to build a perl executable with a shared
3320 This variable holds the general path (space-separated) used to find
3321 libraries. It is intended to be used by other units.
3324 This variable holds the additional libraries we want to use.
3325 It is up to the Makefile to deal with it. The list can be empty.
3328 This variable holds the directory names aka dirnames of the libraries
3329 we found and accepted, duplicates are removed.
3332 This variable holds the filenames aka basenames of the libraries
3333 we found and accepted.
3336 This variable holds the full pathnames of the libraries
3337 we found and accepted.
3340 This variable holds the directory names probed for libraries.
3342 libswanted (Myinit.U):
3343 This variable holds a list of all the libraries we want to
3344 search. The order is chosen to pick up the c library
3345 ahead of ucb or bsd libraries for SVR4.
3347 libswanted_uselargefiles (uselfs.U):
3348 This variable contains the libraries needed by large file builds
3349 and added to ldflags by hints files. It is a space separated list
3350 of the library names without the "lib" prefix or any suffix, just
3354 This variable is defined but not used by Configure.
3355 The value is a plain '' and is not useful.
3358 This variable is defined but not used by Configure.
3359 The value is a plain '' and is not useful.
3361 lkflags (ccflags.U):
3362 This variable contains any additional C partial linker flags desired by
3363 the user. It is up to the Makefile to use this.
3366 This variable is used internally by Configure to determine the
3367 full pathname (if any) of the ln program. After Configure runs,
3368 the value is reset to a plain "ln" and is not useful.
3371 This variable holds the name of the command to make
3372 symbolic links (if they are supported). It can be used
3373 in the Makefile. It is either 'ln -s' or 'ln'
3375 localtime_r_proto (d_localtime_r.U):
3376 This variable encodes the prototype of localtime_r.
3377 It is zero if d_localtime_r is undef, and one of the
3378 REENTRANT_PROTO_T_ABC macros of reentr.h if d_localtime_r
3381 locincpth (ccflags.U):
3382 This variable contains a list of additional directories to be
3383 searched by the compiler. The appropriate '-I' directives will
3384 be added to ccflags. This is intended to simplify setting
3385 local directories from the Configure command line.
3386 It's not much, but it parallels the loclibpth stuff in libpth.U.
3388 loclibpth (libpth.U):
3389 This variable holds the paths (space-separated) used to find local
3390 libraries. It is prepended to libpth, and is intended to be easily
3391 set from the command line.
3393 longdblsize (d_longdbl.U):
3394 This variable contains the value of the LONG_DOUBLESIZE symbol, which
3395 indicates to the C program how many bytes there are in a long double,
3396 if this system supports long doubles.
3398 longlongsize (d_longlong.U):
3399 This variable contains the value of the LONGLONGSIZE symbol, which
3400 indicates to the C program how many bytes there are in a long long,
3401 if this system supports long long.
3403 longsize (intsize.U):
3404 This variable contains the value of the LONGSIZE symbol, which
3405 indicates to the C program how many bytes there are in a long.
3408 This variable is defined but not used by Configure.
3409 The value is a plain '' and is not useful.
3412 This variable is defined but not used by Configure.
3413 The value is a plain '' and is not useful.
3416 This variable is used internally by Configure to determine the
3417 full pathname (if any) of the ls program. After Configure runs,
3418 the value is reset to a plain "ls" and is not useful.
3420 lseeksize (lseektype.U):
3421 This variable defines lseektype to be something like off_t, long,
3422 or whatever type is used to declare lseek offset's type in the
3423 kernel (which also appears to be lseek's return type).
3425 lseektype (lseektype.U):
3426 This variable defines lseektype to be something like off_t, long,
3427 or whatever type is used to declare lseek offset's type in the
3428 kernel (which also appears to be lseek's return type).
3431 This variable is defined but not used by Configure.
3432 The value is a plain '' and is not useful.
3435 This variable is defined but not used by Configure.
3436 The value is a plain '' and is not useful.
3439 This variable is used internally by Configure to determine the
3440 full pathname (if any) of the make program. After Configure runs,
3441 the value is reset to a plain "make" and is not useful.
3443 make_set_make (make.U):
3444 Some versions of 'make' set the variable MAKE. Others do not.
3445 This variable contains the string to be included in Makefile.SH
3446 so that MAKE is set if needed, and not if not needed.
3447 Possible values are:
3449 make_set_make='#' # If your make program handles this for you,
3451 make_set_make="MAKE=$make" # if it doesn't.
3453 This uses a comment character to distinguish a
3454 'set' value (from a previous config.sh or Configure '-D' option)
3455 from an uncomputed value.
3457 mallocobj (mallocsrc.U):
3458 This variable contains the name of the malloc.o that this package
3459 generates, if that malloc.o is preferred over the system malloc.
3460 Otherwise the value is null. This variable is intended for generating
3461 Makefiles. See mallocsrc.
3463 mallocsrc (mallocsrc.U):
3464 This variable contains the name of the malloc.c that comes with
3465 the package, if that malloc.c is preferred over the system malloc.
3466 Otherwise the value is null. This variable is intended for generating
3469 malloctype (mallocsrc.U):
3470 This variable contains the kind of ptr returned by malloc and realloc.
3472 man1dir (man1dir.U):
3473 This variable contains the name of the directory in which manual
3474 source pages are to be put. It is the responsibility of the
3475 Makefile.SH to get the value of this into the proper command.
3476 You must be prepared to do the ~name expansion yourself.
3478 man1direxp (man1dir.U):
3479 This variable is the same as the man1dir variable, but is filename
3480 expanded at configuration time, for convenient use in makefiles.
3482 man1ext (man1dir.U):
3483 This variable contains the extension that the manual page should
3484 have: one of 'n', 'l', or '1'. The Makefile must supply the '.'.
3487 man3dir (man3dir.U):
3488 This variable contains the name of the directory in which manual
3489 source pages are to be put. It is the responsibility of the
3490 Makefile.SH to get the value of this into the proper command.
3491 You must be prepared to do the ~name expansion yourself.
3493 man3direxp (man3dir.U):
3494 This variable is the same as the man3dir variable, but is filename
3495 expanded at configuration time, for convenient use in makefiles.
3497 man3ext (man3dir.U):
3498 This variable contains the extension that the manual page should
3499 have: one of 'n', 'l', or '3'. The Makefile must supply the '.'.
3503 This variable is used internally by Configure to determine the
3504 full pathname (if any) of the Mcc program. After Configure runs,
3505 the value is reset to a plain "Mcc" and is not useful.
3507 mips_type (usrinc.U):
3508 This variable holds the environment type for the mips system.
3509 Possible values are "BSD 4.3" and "System V".
3511 mistrustnm (usenm.U):
3512 This variable can be used to establish a fallthrough for the cases
3513 where nm fails to find a symbol. If usenm is false or usenm is true
3514 and mistrustnm is false, this variable has no effect. If usenm is true
3515 and mistrustnm is "compile", a test program will be compiled to try to
3516 find any symbol that can't be located via nm lookup. If mistrustnm is
3517 "run", the test program will be run as well as being compiled.
3520 This variable is used internally by Configure to determine the
3521 full pathname (if any) of the mkdir program. After Configure runs,
3522 the value is reset to a plain "mkdir" and is not useful.
3524 mmaptype (d_mmap.U):
3525 This symbol contains the type of pointer returned by mmap()
3526 (and simultaneously the type of the first argument).
3527 It can be 'void *' or 'caddr_t'.
3529 modetype (modetype.U):
3530 This variable defines modetype to be something like mode_t,
3531 int, unsigned short, or whatever type is used to declare file
3532 modes for system calls.
3535 This variable is used internally by Configure to determine the
3536 full pathname (if any) of the more program. After Configure runs,
3537 the value is reset to a plain "more" and is not useful.
3539 multiarch (multiarch.U):
3540 This variable conditionally defines the MULTIARCH symbol
3541 which signifies the presence of multiplatform files.
3542 This is normally set by hints files.
3545 This variable is defined but not used by Configure.
3546 The value is a plain '' and is not useful.
3548 myarchname (archname.U):
3549 This variable holds the architecture name computed by Configure in
3550 a previous run. It is not intended to be perused by any user and
3551 should never be set in a hint file.
3553 mydomain (myhostname.U):
3554 This variable contains the eventual value of the MYDOMAIN symbol,
3555 which is the domain of the host the program is going to run on.
3556 The domain must be appended to myhostname to form a complete host name.
3557 The dot comes with mydomain, and need not be supplied by the program.
3559 myhostname (myhostname.U):
3560 This variable contains the eventual value of the MYHOSTNAME symbol,
3561 which is the name of the host the program is going to run on.
3562 The domain is not kept with hostname, but must be gotten from mydomain.
3563 The dot comes with mydomain, and need not be supplied by the program.
3565 myuname (Oldconfig.U):
3566 The output of 'uname -a' if available, otherwise the hostname. On Xenix,
3567 pseudo variables assignments in the output are stripped, thank you. The
3568 whole thing is then lower-cased.
3571 This variable contains the '-n' flag if that is what causes the echo
3572 command to suppress newline. Otherwise it is null. Correct usage is
3573 $echo $n "prompt for a question: $c".
3575 need_va_copy (need_va_copy.U):
3576 This symbol, if defined, indicates that the system stores
3577 the variable argument list datatype, va_list, in a format
3578 that cannot be copied by simple assignment, so that some
3579 other means must be used when copying is required.
3580 As such systems vary in their provision (or non-provision)
3581 of copying mechanisms, handy.h defines a platform-
3582 independent macro, Perl_va_copy(src, dst), to do the job.
3584 netdb_hlen_type (netdbtype.U):
3585 This variable holds the type used for the 2nd argument to
3586 gethostbyaddr(). Usually, this is int or size_t or unsigned.
3587 This is only useful if you have gethostbyaddr(), naturally.
3589 netdb_host_type (netdbtype.U):
3590 This variable holds the type used for the 1st argument to
3591 gethostbyaddr(). Usually, this is char * or void *, possibly
3592 with or without a const prefix.
3593 This is only useful if you have gethostbyaddr(), naturally.
3595 netdb_name_type (netdbtype.U):
3596 This variable holds the type used for the argument to
3597 gethostbyname(). Usually, this is char * or const char *.
3598 This is only useful if you have gethostbyname(), naturally.
3600 netdb_net_type (netdbtype.U):
3601 This variable holds the type used for the 1st argument to
3602 getnetbyaddr(). Usually, this is int or long.
3603 This is only useful if you have getnetbyaddr(), naturally.
3606 This variable is used internally by Configure to determine the
3607 full pathname (if any) of the nm program. After Configure runs,
3608 the value is reset to a plain "nm" and is not useful.
3611 This variable holds the options that may be necessary for nm.
3613 nm_so_opt (usenm.U):
3614 This variable holds the options that may be necessary for nm
3615 to work on a shared library but that can not be used on an
3616 archive library. Currently, this is only used by Linux, where
3617 nm --dynamic is *required* to get symbols from an ELF library which
3618 has been stripped, but nm --dynamic is *fatal* on an archive library.
3619 Maybe Linux should just always set usenm=false.
3621 nonxs_ext (Extensions.U):
3622 This variable holds a list of all non-xs extensions included
3623 in the package. All of them will be built.
3626 This variable is used internally by Configure to determine the
3627 full pathname (if any) of the nroff program. After Configure runs,
3628 the value is reset to a plain "nroff" and is not useful.
3630 nv_preserves_uv_bits (perlxv.U):
3631 This variable indicates how many of bits type uvtype
3632 a variable nvtype can preserve.
3634 nveformat (perlxvf.U):
3635 This variable contains the format string used for printing
3636 a Perl NV using %e-ish floating point format.
3638 nvEUformat (perlxvf.U):
3639 This variable contains the format string used for printing
3640 a Perl NV using %E-ish floating point format.
3642 nvfformat (perlxvf.U):
3643 This variable confains the format string used for printing
3644 a Perl NV using %f-ish floating point format.
3646 nvFUformat (perlxvf.U):
3647 This variable confains the format string used for printing
3648 a Perl NV using %F-ish floating point format.
3650 nvgformat (perlxvf.U):
3651 This variable contains the format string used for printing
3652 a Perl NV using %g-ish floating point format.
3654 nvGUformat (perlxvf.U):
3655 This variable contains the format string used for printing
3656 a Perl NV using %G-ish floating point format.
3659 This variable is the size of an NV in bytes.
3662 This variable contains the C type used for Perl's NV.
3664 o_nonblock (nblock_io.U):
3665 This variable bears the symbol value to be used during open() or fcntl()
3666 to turn on non-blocking I/O for a file descriptor. If you wish to switch
3667 between blocking and non-blocking, you may try ioctl(FIOSNBIO) instead,
3668 but that is only supported by some devices.
3671 This is an old synonym for _o.
3673 old_pthread_create_joinable (d_pthrattrj.U):
3674 This variable defines the constant to use for creating joinable
3675 (aka undetached) pthreads. Unused if pthread.h defines
3676 PTHREAD_CREATE_JOINABLE. If used, possible values are
3677 PTHREAD_CREATE_UNDETACHED and __UNDETACHED.
3679 optimize (ccflags.U):
3680 This variable contains any optimizer/debugger flag that should be used.
3681 It is up to the Makefile to use it.
3683 orderlib (orderlib.U):
3684 This variable is "true" if the components of libraries must be ordered
3685 (with `lorder $* | tsort`) before placing them in an archive. Set to
3686 "false" if ranlib or ar can generate random libraries.
3688 osname (Oldconfig.U):
3689 This variable contains the operating system name (e.g. sunos,
3690 solaris, hpux, etc.). It can be useful later on for setting
3691 defaults. Any spaces are replaced with underscores. It is set
3692 to a null string if we can't figure it out.
3694 osvers (Oldconfig.U):
3695 This variable contains the operating system version (e.g.
3696 4.1.3, 5.2, etc.). It is primarily used for helping select
3697 an appropriate hints file, but might be useful elsewhere for
3698 setting defaults. It is set to '' if we can't figure it out.
3699 We try to be flexible about how much of the version number
3700 to keep, e.g. if 4.1.1, 4.1.2, and 4.1.3 are essentially the
3701 same for this package, hints files might just be os_4.0 or
3702 os_4.1, etc., not keeping separate files for each little release.
3704 otherlibdirs (otherlibdirs.U):
3705 This variable contains a colon-separated set of paths for the perl
3706 binary to search for additional library files or modules.
3707 These directories will be tacked to the end of @INC.
3708 Perl will automatically search below each path for version-
3709 and architecture-specific directories. See inc_version_list
3711 A value of ' ' means 'none' and is used to preserve this value
3712 for the next run through Configure.
3714 package (package.U):
3715 This variable contains the name of the package being constructed.
3716 It is primarily intended for the use of later Configure units.
3719 This variable contains the name of the preferred pager on the system.
3720 Usual values are (the full pathnames of) more, less, pg, or cat.
3723 This variable contains a command that produces the text of the
3724 /etc/passwd file. This is normally "cat /etc/passwd", but can be
3725 "ypcat passwd" when NIS is used.
3726 On some systems, such as os390, there may be no equivalent
3727 command, in which case this variable is unset.
3729 patchlevel (patchlevel.U):
3730 The patchlevel level of this package.
3731 The value of patchlevel comes from the patchlevel.h file.
3732 In a version number such as 5.6.1, this is the "6".
3733 In patchlevel.h, this is referred to as "PERL_VERSION".
3736 This is an old synonym for p_ in Head.U, the character
3737 used to separate elements in the command shell search PATH.
3740 This variable contains the full path (if any) to a previously
3741 installed perl5.005 or later suitable for running the script
3742 to determine inc_version_list.
3745 This variable is defined but not used by Configure.
3746 The value is a plain '' and is not useful.
3748 perl_patchlevel (patchlevel.U):
3749 This is the Perl patch level, a numeric change identifier,
3750 as defined by whichever source code maintenance system
3751 is used to maintain the patches; currently Perforce.
3752 It does not correlate with the Perl version numbers or
3753 the maintenance versus development dichotomy except
3754 by also being increasing.
3756 PERL_REVISION (Oldsyms.U):
3757 In a Perl version number such as 5.6.2, this is the 5.
3758 This value is manually set in patchlevel.h
3760 PERL_SUBVERSION (Oldsyms.U):
3761 In a Perl version number such as 5.6.2, this is the 2.
3762 Values greater than 50 represent potentially unstable
3763 development subversions.
3764 This value is manually set in patchlevel.h
3766 PERL_VERSION (Oldsyms.U):
3767 In a Perl version number such as 5.6.2, this is the 6.
3768 This value is manually set in patchlevel.h
3770 perladmin (perladmin.U):
3771 Electronic mail address of the perl5 administrator.
3774 The list of libraries needed by Perl only (any libraries needed
3775 by extensions only will by dropped, if using dynamic loading).
3777 perlpath (perlpath.U):
3778 This variable contains the eventual value of the PERLPATH symbol,
3779 which contains the name of the perl interpreter to be used in
3780 shell scripts and in the "eval 'exec'" idiom. This variable is
3781 not necessarily the pathname of the file containing the perl
3782 interpreter; you must append the executable extension (_exe) if
3783 it is not already present. Note that Perl code that runs during
3784 the Perl build process cannot reference this variable, as Perl
3785 may not have been installed, or even if installed, may be a
3786 different version of Perl.
3789 This variable is used internally by Configure to determine the
3790 full pathname (if any) of the pg program. After Configure runs,
3791 the value is reset to a plain "pg" and is not useful.
3793 phostname (myhostname.U):
3794 This variable contains the eventual value of the PHOSTNAME symbol,
3795 which is a command that can be fed to popen() to get the host name.
3796 The program should probably not presume that the domain is or isn't
3799 pidtype (pidtype.U):
3800 This variable defines PIDTYPE to be something like pid_t, int,
3801 ushort, or whatever type is used to declare process ids in the kernel.
3804 Holds the private path used by Configure to find out the libraries.
3805 Its value is prepend to libpth. This variable takes care of special
3806 machines, like the mips. Usually, it should be empty.
3808 pm_apiversion (xs_apiversion.U):
3809 This variable contains the version of the oldest perl
3810 compatible with the present perl. (That is, pure perl modules
3811 written for $pm_apiversion will still work for the current
3812 version). perl.c:incpush() and lib/lib.pm will automatically
3813 search in $sitelib for older directories across major versions
3814 back to pm_apiversion. This is only useful if you have a perl
3815 library directory tree structured like the default one. The
3816 versioned site_perl library was introduced in 5.005, so that's
3817 the default setting for this variable. It's hard to imagine
3818 it changing before Perl6. It is included here for symmetry
3819 with xs_apiveprsion -- the searching algorithms will
3820 (presumably) be similar.
3821 See the INSTALL file for how this works.
3824 This variable is defined but not used by Configure.
3825 The value is a plain '' and is not useful.
3828 This variable is defined but not used by Configure.
3829 The value is a plain '' and is not useful.
3832 This variable holds the name of the directory below which the
3833 user will install the package. Usually, this is /usr/local, and
3834 executables go in /usr/local/bin, library stuff in /usr/local/lib,
3835 man pages in /usr/local/man, etc. It is only used to set defaults
3836 for things in bin.U, mansrc.U, privlib.U, or scriptdir.U.
3838 prefixexp (prefix.U):
3839 This variable holds the full absolute path of the directory below
3840 which the user will install the package. Derived from prefix.
3842 privlib (privlib.U):
3843 This variable contains the eventual value of the PRIVLIB symbol,
3844 which is the name of the private library for this package. It may
3845 have a ~ on the front. It is up to the makefile to eventually create
3846 this directory while performing installation (with ~ substitution).
3848 privlibexp (privlib.U):
3849 This variable is the ~name expanded version of privlib, so that you
3850 may use it directly in Makefiles or shell scripts.
3852 procselfexe (d_procselfexe.U):
3853 If d_procselfexe is defined, $procselfexe is the filename
3854 of the symbolic link pointing to the absolute pathname of
3855 the executing program.
3857 prototype (prototype.U):
3858 This variable holds the eventual value of CAN_PROTOTYPE, which
3859 indicates the C compiler can handle funciton prototypes.
3861 ptrsize (ptrsize.U):
3862 This variable contains the value of the PTRSIZE symbol, which
3863 indicates to the C program how many bytes there are in a pointer.
3865 quadkind (quadtype.U):
3866 This variable, if defined, encodes the type of a quad:
3867 1 = int, 2 = long, 3 = long long, 4 = int64_t.
3869 quadtype (quadtype.U):
3870 This variable defines Quad_t to be something like long, int,
3871 long long, int64_t, or whatever type is used for 64-bit integers.
3873 randbits (randfunc.U):
3874 Indicates how many bits are produced by the function used to
3875 generate normalized random numbers.
3877 randfunc (randfunc.U):
3878 Indicates the name of the random number function to use.
3879 Values include drand48, random, and rand. In C programs,
3880 the 'Drand01' macro is defined to generate uniformly distributed
3881 random numbers over the range [0., 1.[ (see drand01 and nrand).
3883 random_r_proto (d_random_r.U):
3884 This variable encodes the prototype of random_r.
3885 It is zero if d_random_r is undef, and one of the
3886 REENTRANT_PROTO_T_ABC macros of reentr.h if d_random_r
3889 randseedtype (randfunc.U):
3890 Indicates the type of the argument of the seedfunc.
3892 ranlib (orderlib.U):
3893 This variable is set to the pathname of the ranlib program, if it is
3894 needed to generate random libraries. Set to ":" if ar can generate
3895 random libraries or if random libraries are not supported
3897 rd_nodata (nblock_io.U):
3898 This variable holds the return code from read() when no data is
3899 present. It should be -1, but some systems return 0 when O_NDELAY is
3900 used, which is a shame because you cannot make the difference between
3901 no data and an EOF.. Sigh!
3903 readdir64_r_proto (d_readdir64_r.U):
3904 This variable encodes the prototype of readdir64_r.
3905 It is zero if d_readdir64_r is undef, and one of the
3906 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir64_r
3909 readdir_r_proto (d_readdir_r.U):
3910 This variable encodes the prototype of readdir_r.
3911 It is zero if d_readdir_r is undef, and one of the
3912 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir_r
3915 revision (patchlevel.U):
3916 The value of revision comes from the patchlevel.h file.
3917 In a version number such as 5.6.1, this is the "5".
3918 In patchlevel.h, this is referred to as "PERL_REVISION".
3921 This variable is used internally by Configure to determine the
3922 full pathname (if any) of the rm program. After Configure runs,
3923 the value is reset to a plain "rm" and is not useful.
3926 This variable is defined but not used by Configure.
3927 The value is a plain '' and is not useful.
3930 This variable contains the command used by Configure
3931 to copy and execute a cross-compiled executable in the
3932 target host. Useful and available only during Perl build.
3933 Empty string '' if not cross-compiling.
3936 This variable contains 'true' or 'false' depending whether the
3937 nm extraction should be performed or not, according to the value
3938 of usenm and the flags on the Configure command line.
3940 sched_yield (d_pthread_y.U):
3941 This variable defines the way to yield the execution
3942 of the current thread.
3944 scriptdir (scriptdir.U):
3945 This variable holds the name of the directory in which the user wants
3946 to put publicly scripts for the package in question. It is either
3947 the same directory as for binaries, or a special one that can be
3948 mounted across different architectures, like /usr/share. Programs
3949 must be prepared to deal with ~name expansion.
3951 scriptdirexp (scriptdir.U):
3952 This variable is the same as scriptdir, but is filename expanded
3953 at configuration time, for programs not wanting to bother with it.
3956 This variable is used internally by Configure to determine the
3957 full pathname (if any) of the sed program. After Configure runs,
3958 the value is reset to a plain "sed" and is not useful.
3960 seedfunc (randfunc.U):
3961 Indicates the random number generating seed function.
3962 Values include srand48, srandom, and srand.
3964 selectminbits (selectminbits.U):
3965 This variable holds the minimum number of bits operated by select.
3966 That is, if you do select(n, ...), how many bits at least will be
3967 cleared in the masks if some activity is detected. Usually this
3968 is either n or 32*ceil(n/32), especially many little-endians do
3969 the latter. This is only useful if you have select(), naturally.
3971 selecttype (selecttype.U):
3972 This variable holds the type used for the 2nd, 3rd, and 4th
3973 arguments to select. Usually, this is 'fd_set *', if HAS_FD_SET
3974 is defined, and 'int *' otherwise. This is only useful if you
3975 have select(), naturally.
3978 This variable is defined but not used by Configure.
3979 The value is a plain '' and is not useful.
3981 setgrent_r_proto (d_setgrent_r.U):
3982 This variable encodes the prototype of setgrent_r.
3983 It is zero if d_setgrent_r is undef, and one of the
3984 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setgrent_r
3987 sethostent_r_proto (d_sethostent_r.U):
3988 This variable encodes the prototype of sethostent_r.
3989 It is zero if d_sethostent_r is undef, and one of the
3990 REENTRANT_PROTO_T_ABC macros of reentr.h if d_sethostent_r
3993 setlocale_r_proto (d_setlocale_r.U):
3994 This variable encodes the prototype of setlocale_r.
3995 It is zero if d_setlocale_r is undef, and one of the
3996 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setlocale_r
3999 setnetent_r_proto (d_setnetent_r.U):
4000 This variable encodes the prototype of setnetent_r.
4001 It is zero if d_setnetent_r is undef, and one of the
4002 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setnetent_r
4005 setprotoent_r_proto (d_setprotoent_r.U):
4006 This variable encodes the prototype of setprotoent_r.
4007 It is zero if d_setprotoent_r is undef, and one of the
4008 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setprotoent_r
4011 setpwent_r_proto (d_setpwent_r.U):
4012 This variable encodes the prototype of setpwent_r.
4013 It is zero if d_setpwent_r is undef, and one of the
4014 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setpwent_r
4017 setservent_r_proto (d_setservent_r.U):
4018 This variable encodes the prototype of setservent_r.
4019 It is zero if d_setservent_r is undef, and one of the
4020 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setservent_r
4024 This variable contains the full pathname of the shell used
4025 on this system to execute Bourne shell scripts. Usually, this will be
4026 /bin/sh, though it's possible that some systems will have /bin/ksh,
4027 /bin/pdksh, /bin/ash, /bin/bash, or even something such as
4029 This unit comes before Options.U, so you can't set sh with a '-D'
4030 option, though you can override this (and startsh)
4031 with '-O -Dsh=/bin/whatever -Dstartsh=whatever'
4034 This variable is defined but not used by Configure.
4035 The value is a plain '' and is not useful.
4037 sharpbang (spitshell.U):
4038 This variable contains the string #! if this system supports that
4041 shmattype (d_shmat.U):
4042 This symbol contains the type of pointer returned by shmat().
4043 It can be 'void *' or 'char *'.
4045 shortsize (intsize.U):
4046 This variable contains the value of the SHORTSIZE symbol which
4047 indicates to the C program how many bytes there are in a short.
4049 shrpenv (libperl.U):
4050 If the user builds a shared libperl.so, then we need to tell the
4051 'perl' executable where it will be able to find the installed libperl.so.
4052 One way to do this on some systems is to set the environment variable
4053 LD_RUN_PATH to the directory that will be the final location of the
4054 shared libperl.so. The makefile can use this with something like
4055 $shrpenv $(CC) -o perl perlmain.o $libperl $libs
4057 shrpenv="env LD_RUN_PATH=$archlibexp/CORE"
4060 See the main perl Makefile.SH for actual working usage.
4061 Alternatively, we might be able to use a command line option such
4062 as -R $archlibexp/CORE (Solaris) or -Wl,-rpath
4063 $archlibexp/CORE (Linux).
4065 shsharp (spitshell.U):
4066 This variable tells further Configure units whether your sh can
4069 sig_count (sig_name.U):
4070 This variable holds a number larger than the largest valid
4071 signal number. This is usually the same as the NSIG macro.
4073 sig_name (sig_name.U):
4074 This variable holds the signal names, space separated. The leading
4075 SIG in signal name is removed. A ZERO is prepended to the list.
4076 This is currently not used, sig_name_init is used instead.
4078 sig_name_init (sig_name.U):
4079 This variable holds the signal names, enclosed in double quotes and
4080 separated by commas, suitable for use in the SIG_NAME definition
4081 below. A "ZERO" is prepended to the list, and the list is
4082 terminated with a plain 0. The leading SIG in signal names
4083 is removed. See sig_num.
4085 sig_num (sig_name.U):
4086 This variable holds the signal numbers, space separated. A ZERO is
4087 prepended to the list (corresponding to the fake SIGZERO).
4088 Those numbers correspond to the value of the signal listed
4089 in the same place within the sig_name list.
4090 This is currently not used, sig_num_init is used instead.
4092 sig_num_init (sig_name.U):
4093 This variable holds the signal numbers, enclosed in double quotes and
4094 separated by commas, suitable for use in the SIG_NUM definition
4095 below. A "ZERO" is prepended to the list, and the list is
4096 terminated with a plain 0.
4098 sig_size (sig_name.U):
4099 This variable contains the number of elements of the sig_name
4102 signal_t (d_voidsig.U):
4103 This variable holds the type of the signal handler (void or int).
4105 sitearch (sitearch.U):
4106 This variable contains the eventual value of the SITEARCH symbol,
4107 which is the name of the private library for this package. It may
4108 have a ~ on the front. It is up to the makefile to eventually create
4109 this directory while performing installation (with ~ substitution).
4110 The standard distribution will put nothing in this directory.
4111 After perl has been installed, users may install their own local
4112 architecture-dependent modules in this directory with
4113 MakeMaker Makefile.PL
4114 or equivalent. See INSTALL for details.
4116 sitearchexp (sitearch.U):
4117 This variable is the ~name expanded version of sitearch, so that you
4118 may use it directly in Makefiles or shell scripts.
4120 sitebin (sitebin.U):
4121 This variable holds the name of the directory in which the user wants
4122 to put add-on publicly executable files for the package in question. It
4123 is most often a local directory such as /usr/local/bin. Programs using
4124 this variable must be prepared to deal with ~name substitution.
4125 The standard distribution will put nothing in this directory.
4126 After perl has been installed, users may install their own local
4127 executables in this directory with
4128 MakeMaker Makefile.PL
4129 or equivalent. See INSTALL for details.
4131 sitebinexp (sitebin.U):
4132 This is the same as the sitebin variable, but is filename expanded at
4133 configuration time, for use in your makefiles.
4135 sitehtml1 (sitehtml1.U):
4136 This variable contains the name of the directory in which site-specific
4137 html source pages are to be put. It is the responsibility of the
4138 Makefile.SH to get the value of this into the proper command.
4139 You must be prepared to do the ~name expansion yourself.
4140 The standard distribution will put nothing in this directory.
4141 After perl has been installed, users may install their own local
4142 html pages in this directory with
4143 MakeMaker Makefile.PL
4144 or equivalent. See INSTALL for details.
4146 sitehtml1exp (sitehtml1.U):
4147 This variable is the same as the sitehtml1 variable, but is filename
4148 expanded at configuration time, for convenient use in makefiles.
4150 sitehtml3 (sitehtml3.U):
4151 This variable contains the name of the directory in which site-specific
4152 library html source pages are to be put. It is the responsibility of the
4153 Makefile.SH to get the value of this into the proper command.
4154 You must be prepared to do the ~name expansion yourself.
4155 The standard distribution will put nothing in this directory.
4156 After perl has been installed, users may install their own local
4157 library html pages in this directory with
4158 MakeMaker Makefile.PL
4159 or equivalent. See INSTALL for details.
4161 sitehtml3exp (sitehtml3.U):
4162 This variable is the same as the sitehtml3 variable, but is filename
4163 expanded at configuration time, for convenient use in makefiles.
4165 sitelib (sitelib.U):
4166 This variable contains the eventual value of the SITELIB symbol,
4167 which is the name of the private library for this package. It may
4168 have a ~ on the front. It is up to the makefile to eventually create
4169 this directory while performing installation (with ~ substitution).
4170 The standard distribution will put nothing in this directory.
4171 After perl has been installed, users may install their own local
4172 architecture-independent modules in this directory with
4173 MakeMaker Makefile.PL
4174 or equivalent. See INSTALL for details.
4176 sitelib_stem (sitelib.U):
4177 This variable is $sitelibexp with any trailing version-specific component
4178 removed. The elements in inc_version_list (inc_version_list.U) can
4179 be tacked onto this variable to generate a list of directories to search.
4181 sitelibexp (sitelib.U):
4182 This variable is the ~name expanded version of sitelib, so that you
4183 may use it directly in Makefiles or shell scripts.
4185 siteman1 (siteman1.U):
4186 This variable contains the name of the directory in which site-specific
4187 manual source pages are to be put. It is the responsibility of the
4188 Makefile.SH to get the value of this into the proper command.
4189 You must be prepared to do the ~name expansion yourself.
4190 The standard distribution will put nothing in this directory.
4191 After perl has been installed, users may install their own local
4192 man1 pages in this directory with
4193 MakeMaker Makefile.PL
4194 or equivalent. See INSTALL for details.
4196 siteman1exp (siteman1.U):
4197 This variable is the same as the siteman1 variable, but is filename
4198 expanded at configuration time, for convenient use in makefiles.
4200 siteman3 (siteman3.U):
4201 This variable contains the name of the directory in which site-specific
4202 library man source pages are to be put. It is the responsibility of the
4203 Makefile.SH to get the value of this into the proper command.
4204 You must be prepared to do the ~name expansion yourself.
4205 The standard distribution will put nothing in this directory.
4206 After perl has been installed, users may install their own local
4207 man3 pages in this directory with
4208 MakeMaker Makefile.PL
4209 or equivalent. See INSTALL for details.
4211 siteman3exp (siteman3.U):
4212 This variable is the same as the siteman3 variable, but is filename
4213 expanded at configuration time, for convenient use in makefiles.
4215 siteprefix (siteprefix.U):
4216 This variable holds the full absolute path of the directory below
4217 which the user will install add-on packages.
4218 See INSTALL for usage and examples.
4220 siteprefixexp (siteprefix.U):
4221 This variable holds the full absolute path of the directory below
4222 which the user will install add-on packages. Derived from siteprefix.
4224 sitescript (sitescript.U):
4225 This variable holds the name of the directory in which the user wants
4226 to put add-on publicly executable files for the package in question. It
4227 is most often a local directory such as /usr/local/bin. Programs using
4228 this variable must be prepared to deal with ~name substitution.
4229 The standard distribution will put nothing in this directory.
4230 After perl has been installed, users may install their own local
4231 scripts in this directory with
4232 MakeMaker Makefile.PL
4233 or equivalent. See INSTALL for details.
4235 sitescriptexp (sitescript.U):
4236 This is the same as the sitescript variable, but is filename expanded at
4237 configuration time, for use in your makefiles.
4239 sizesize (sizesize.U):
4240 This variable contains the size of a sizetype in bytes.
4242 sizetype (sizetype.U):
4243 This variable defines sizetype to be something like size_t,
4244 unsigned long, or whatever type is used to declare length
4245 parameters for string functions.
4248 This variable is defined but not used by Configure.
4249 The value is a plain '' and is not useful.
4252 This variable is defined but not used by Configure.
4253 The value is a plain '' and is not useful.
4256 This variable holds the extension used to identify shared libraries
4257 (also known as shared objects) on the system. Usually set to 'so'.
4259 sockethdr (d_socket.U):
4260 This variable has any cpp '-I' flags needed for socket support.
4262 socketlib (d_socket.U):
4263 This variable has the names of any libraries needed for socket support.
4265 socksizetype (socksizetype.U):
4266 This variable holds the type used for the size argument
4267 for various socket calls like accept. Usual values include
4268 socklen_t, size_t, and int.
4271 This variable is used internally by Configure to determine the
4272 full pathname (if any) of the sort program. After Configure runs,
4273 the value is reset to a plain "sort" and is not useful.
4275 spackage (package.U):
4276 This variable contains the name of the package being constructed,
4277 with the first letter uppercased, i.e. suitable for starting
4280 spitshell (spitshell.U):
4281 This variable contains the command necessary to spit out a runnable
4282 shell on this system. It is either cat or a grep '-v' for # comments.
4284 sPRId64 (quadfio.U):
4285 This variable, if defined, contains the string used by stdio to
4286 format 64-bit decimal numbers (format 'd') for output.
4288 sPRIeldbl (longdblfio.U):
4289 This variable, if defined, contains the string used by stdio to
4290 format long doubles (format 'e') for output.
4292 sPRIEUldbl (longdblfio.U):
4293 This variable, if defined, contains the string used by stdio to
4294 format long doubles (format 'E') for output.
4295 The 'U' in the name is to separate this from sPRIeldbl so that even
4296 case-blind systems can see the difference.
4298 sPRIfldbl (longdblfio.U):
4299 This variable, if defined, contains the string used by stdio to
4300 format long doubles (format 'f') for output.
4302 sPRIFUldbl (longdblfio.U):
4303 This variable, if defined, contains the string used by stdio to
4304 format long doubles (format 'F') for output.
4305 The 'U' in the name is to separate this from sPRIfldbl so that even
4306 case-blind systems can see the difference.
4308 sPRIgldbl (longdblfio.U):
4309 This variable, if defined, contains the string used by stdio to
4310 format long doubles (format 'g') for output.
4312 sPRIGUldbl (longdblfio.U):
4313 This variable, if defined, contains the string used by stdio to
4314 format long doubles (format 'G') for output.
4315 The 'U' in the name is to separate this from sPRIgldbl so that even
4316 case-blind systems can see the difference.
4318 sPRIi64 (quadfio.U):
4319 This variable, if defined, contains the string used by stdio to
4320 format 64-bit decimal numbers (format 'i') for output.
4322 sPRIo64 (quadfio.U):
4323 This variable, if defined, contains the string used by stdio to
4324 format 64-bit octal numbers (format 'o') for output.
4326 sPRIu64 (quadfio.U):
4327 This variable, if defined, contains the string used by stdio to
4328 format 64-bit unsigned decimal numbers (format 'u') for output.
4330 sPRIx64 (quadfio.U):
4331 This variable, if defined, contains the string used by stdio to
4332 format 64-bit hexadecimal numbers (format 'x') for output.
4334 sPRIXU64 (quadfio.U):
4335 This variable, if defined, contains the string used by stdio to
4336 format 64-bit hExADECimAl numbers (format 'X') for output.
4337 The 'U' in the name is to separate this from sPRIx64 so that even
4338 case-blind systems can see the difference.
4340 srand48_r_proto (d_srand48_r.U):
4341 This variable encodes the prototype of srand48_r.
4342 It is zero if d_srand48_r is undef, and one of the
4343 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srand48_r
4346 srandom_r_proto (d_srandom_r.U):
4347 This variable encodes the prototype of srandom_r.
4348 It is zero if d_srandom_r is undef, and one of the
4349 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srandom_r
4353 This variable holds the path to the package source. It is up to
4354 the Makefile to use this variable and set VPATH accordingly to
4355 find the sources remotely.
4357 sSCNfldbl (longdblfio.U):
4358 This variable, if defined, contains the string used by stdio to
4359 format long doubles (format 'f') for input.
4361 ssizetype (ssizetype.U):
4362 This variable defines ssizetype to be something like ssize_t,
4363 long or int. It is used by functions that return a count
4364 of bytes or an error condition. It must be a signed type.
4365 We will pick a type such that sizeof(SSize_t) == sizeof(Size_t).
4367 startperl (startperl.U):
4368 This variable contains the string to put on the front of a perl
4369 script to make sure (hopefully) that it runs with perl and not some
4370 shell. Of course, that leading line must be followed by the classical
4372 eval 'exec perl -S $0 ${1+"$@"}'
4373 if $running_under_some_shell;
4374 to guarantee perl startup should the shell execute the script. Note
4375 that this magic incatation is not understood by csh.
4377 startsh (startsh.U):
4378 This variable contains the string to put on the front of a shell
4379 script to make sure (hopefully) that it runs with sh and not some
4382 static_ext (Extensions.U):
4383 This variable holds a list of XS extension files we want to
4384 link statically into the package. It is used by Makefile.
4386 stdchar (stdchar.U):
4387 This variable conditionally defines STDCHAR to be the type of char
4388 used in stdio.h. It has the values "unsigned char" or "char".
4390 stdio_base (d_stdstdio.U):
4391 This variable defines how, given a FILE pointer, fp, to access the
4392 _base field (or equivalent) of stdio.h's FILE structure. This will
4393 be used to define the macro FILE_base(fp).
4395 stdio_bufsiz (d_stdstdio.U):
4396 This variable defines how, given a FILE pointer, fp, to determine
4397 the number of bytes store in the I/O buffer pointer to by the
4398 _base field (or equivalent) of stdio.h's FILE structure. This will
4399 be used to define the macro FILE_bufsiz(fp).
4401 stdio_cnt (d_stdstdio.U):
4402 This variable defines how, given a FILE pointer, fp, to access the
4403 _cnt field (or equivalent) of stdio.h's FILE structure. This will
4404 be used to define the macro FILE_cnt(fp).
4406 stdio_filbuf (d_stdstdio.U):
4407 This variable defines how, given a FILE pointer, fp, to tell
4408 stdio to refill its internal buffers (?). This will
4409 be used to define the macro FILE_filbuf(fp).
4411 stdio_ptr (d_stdstdio.U):
4412 This variable defines how, given a FILE pointer, fp, to access the
4413 _ptr field (or equivalent) of stdio.h's FILE structure. This will
4414 be used to define the macro FILE_ptr(fp).
4416 stdio_stream_array (stdio_streams.U):
4417 This variable tells the name of the array holding the stdio streams.
4418 Usual values include _iob, __iob, and __sF.
4420 strerror_r_proto (d_strerror_r.U):
4421 This variable encodes the prototype of strerror_r.
4422 It is zero if d_strerror_r is undef, and one of the
4423 REENTRANT_PROTO_T_ABC macros of reentr.h if d_strerror_r
4426 strings (i_string.U):
4427 This variable holds the full path of the string header that will be
4428 used. Typically /usr/include/string.h or /usr/include/strings.h.
4431 This variable is defined but not used by Configure.
4432 The value is a plain '' and is not useful.
4434 subversion (patchlevel.U):
4435 The subversion level of this package.
4436 The value of subversion comes from the patchlevel.h file.
4437 In a version number such as 5.6.1, this is the "1".
4438 In patchlevel.h, this is referred to as "PERL_SUBVERSION".
4439 This is unique to perl.
4442 This variable holds the place where the manual is located on this
4443 system. It is not the place where the user wants to put his manual
4444 pages. Rather it is the place where Configure may look to find manual
4445 for unix commands (section 1 of the manual usually). See mansrc.
4448 This variable is defined but not used by Configure.
4449 The value is a plain '' and is not useful.
4452 This variable is defined but not used by Configure.
4453 The value is a plain '' and is not useful.
4455 targetarch (Cross.U):
4456 If cross-compiling, this variable contains the target architecture.
4457 If not, this will be empty.
4460 This variable is defined but not used by Configure.
4461 The value is a plain '' and is not useful.
4464 This variable is defined but not used by Configure.
4465 The value is a plain '' and is not useful.
4468 This variable is used internally by Configure to determine the
4469 full pathname (if any) of the test program. After Configure runs,
4470 the value is reset to a plain "test" and is not useful.
4472 timeincl (i_time.U):
4473 This variable holds the full path of the included time header(s).
4475 timetype (d_time.U):
4476 This variable holds the type returned by time(). It can be long,
4477 or time_t on BSD sites (in which case <sys/types.h> should be
4478 included). Anyway, the type Time_t should be used.
4480 tmpnam_r_proto (d_tmpnam_r.U):
4481 This variable encodes the prototype of tmpnam_r.
4482 It is zero if d_tmpnam_r is undef, and one of the
4483 REENTRANT_PROTO_T_ABC macros of reentr.h if d_tmpnam_r
4487 This variable contains the command used by Configure
4488 to copy to from the target host. Useful and available
4489 only during Perl build.
4490 The string ':' if not cross-compiling.
4493 This variable is used internally by Configure to determine the
4494 full pathname (if any) of the touch program. After Configure runs,
4495 the value is reset to a plain "touch" and is not useful.
4498 This variable is used internally by Configure to determine the
4499 full pathname (if any) of the tr program. After Configure runs,
4500 the value is reset to a plain "tr" and is not useful.
4503 This variable contains the value to be passed to the tr(1)
4504 command to transliterate a newline. Typical values are
4505 '\012' and '\n'. This is needed for EBCDIC systems where
4506 newline is not necessarily '\012'.
4509 This variable is defined but not used by Configure.
4510 The value is a plain '' and is not useful.
4512 ttyname_r_proto (d_ttyname_r.U):
4513 This variable encodes the prototype of ttyname_r.
4514 It is zero if d_ttyname_r is undef, and one of the
4515 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ttyname_r
4519 This variable is the size of an U16 in bytes.
4522 This variable contains the C type used for Perl's U16.
4525 This variable is the size of an U32 in bytes.
4528 This variable contains the C type used for Perl's U32.
4531 This variable is the size of an U64 in bytes.
4534 This variable contains the C type used for Perl's U64.
4537 This variable is the size of an U8 in bytes.
4540 This variable contains the C type used for Perl's U8.
4543 This variable contains the format string used for printing a Uid_t.
4545 uidsign (uidsign.U):
4546 This variable contains the signedness of a uidtype.
4547 1 for unsigned, -1 for signed.
4549 uidsize (uidsize.U):
4550 This variable contains the size of a uidtype in bytes.
4552 uidtype (uidtype.U):
4553 This variable defines Uid_t to be something like uid_t, int,
4554 ushort, or whatever type is used to declare user ids in the kernel.
4557 This variable is used internally by Configure to determine the
4558 full pathname (if any) of the uname program. After Configure runs,
4559 the value is reset to a plain "uname" and is not useful.
4562 This variable is used internally by Configure to determine the
4563 full pathname (if any) of the uniq program. After Configure runs,
4564 the value is reset to a plain "uniq" and is not useful.
4566 uquadtype (quadtype.U):
4567 This variable defines Uquad_t to be something like unsigned long,
4568 unsigned int, unsigned long long, uint64_t, or whatever type is
4569 used for 64-bit integers.
4571 use5005threads (usethreads.U):
4572 This variable conditionally defines the USE_5005THREADS symbol,
4573 and indicates that Perl should be built to use the 5.005-based
4574 threading implementation.
4576 use64bitall (use64bits.U):
4577 This variable conditionally defines the USE_64_BIT_ALL symbol,
4578 and indicates that 64-bit integer types should be used
4579 when available. The maximal possible
4580 64-bitness is employed: LP64 or ILP64, meaning that you will
4581 be able to use more than 2 gigabytes of memory. This mode is
4582 even more binary incompatible than USE_64_BIT_INT. You may not
4583 be able to run the resulting executable in a 32-bit CPU at all or
4584 you may need at least to reboot your OS to 64-bit mode.
4586 use64bitint (use64bits.U):
4587 This variable conditionally defines the USE_64_BIT_INT symbol,
4588 and indicates that 64-bit integer types should be used
4589 when available. The minimal possible 64-bitness
4590 is employed, just enough to get 64-bit integers into Perl.
4591 This may mean using for example "long longs", while your memory
4592 may still be limited to 2 gigabytes.
4594 usecrosscompile (Cross.U):
4595 This variable conditionally defines the USE_CROSS_COMPILE symbol,
4596 and indicates that Perl has been cross-compiled.
4599 This variable indicates if the system supports dynamic
4600 loading of some sort. See also dlsrc and dlobj.
4602 usefaststdio (usefaststdio.U):
4603 This variable conditionally defines the USE_FAST_STDIO symbol,
4604 and indicates that Perl should be built to use 'fast stdio'.
4605 Defaults to define in Perls 5.8 and earlier, to undef later.
4607 useithreads (usethreads.U):
4608 This variable conditionally defines the USE_ITHREADS symbol,
4609 and indicates that Perl should be built to use the interpreter-based
4610 threading implementation.
4612 uselargefiles (uselfs.U):
4613 This variable conditionally defines the USE_LARGE_FILES symbol,
4614 and indicates that large file interfaces should be used when
4617 uselongdouble (uselongdbl.U):
4618 This variable conditionally defines the USE_LONG_DOUBLE symbol,
4619 and indicates that long doubles should be used when available.
4621 usemorebits (usemorebits.U):
4622 This variable conditionally defines the USE_MORE_BITS symbol,
4623 and indicates that explicit 64-bit interfaces and long doubles
4624 should be used when available.
4626 usemultiplicity (usemultiplicity.U):
4627 This variable conditionally defines the MULTIPLICITY symbol,
4628 and indicates that Perl should be built to use multiplicity.
4630 usemymalloc (mallocsrc.U):
4631 This variable contains y if the malloc that comes with this package
4632 is desired over the system's version of malloc. People often include
4633 special versions of malloc for effiency, but such versions are often
4634 less portable. See also mallocsrc and mallocobj.
4635 If this is 'y', then -lmalloc is removed from $libs.
4638 This variable contains 'true' or 'false' depending whether the
4639 nm extraction is wanted or not.
4641 useopcode (Extensions.U):
4642 This variable holds either 'true' or 'false' to indicate
4643 whether the Opcode extension should be used. The sole
4644 use for this currently is to allow an easy mechanism
4645 for users to skip the Opcode extension from the Configure
4648 useperlio (useperlio.U):
4649 This variable conditionally defines the USE_PERLIO symbol,
4650 and indicates that the PerlIO abstraction should be
4653 useposix (Extensions.U):
4654 This variable holds either 'true' or 'false' to indicate
4655 whether the POSIX extension should be used. The sole
4656 use for this currently is to allow an easy mechanism
4657 for hints files to indicate that POSIX will not compile
4658 on a particular system.
4660 usereentrant (usethreads.U):
4661 This variable conditionally defines the USE_REENTRANT_API symbol,
4662 which indicates that the thread code may try to use the various
4663 _r versions of library functions. This is only potentially
4664 meaningful if usethreads is set and is very experimental, it is
4665 not even prompted for.
4668 This variable is set to true when the user agrees to use sfio.
4669 It is set to false when sfio is not available or when the user
4670 explicitely requests not to use sfio. It is here primarily so
4671 that command-line settings can override the auto-detection of
4672 d_sfio without running into a "WHOA THERE".
4674 useshrplib (libperl.U):
4675 This variable is set to 'true' if the user wishes
4676 to build a shared libperl, and 'false' otherwise.
4678 usesocks (usesocks.U):
4679 This variable conditionally defines the USE_SOCKS symbol,
4680 and indicates that Perl should be built to use SOCKS.
4682 usethreads (usethreads.U):
4683 This variable conditionally defines the USE_THREADS symbol,
4684 and indicates that Perl should be built to use threads.
4686 usevendorprefix (vendorprefix.U):
4687 This variable tells whether the vendorprefix
4688 and consequently other vendor* paths are in use.
4690 usevfork (d_vfork.U):
4691 This variable is set to true when the user accepts to use vfork.
4692 It is set to false when no vfork is available or when the user
4693 explicitely requests not to use vfork.
4696 This variable holds the path of the include files, which is
4697 usually /usr/include. It is mainly used by other Configure units.
4700 This variable is defined but not used by Configure.
4701 The value is a plain '' and is not useful.
4703 uvoformat (perlxvf.U):
4704 This variable contains the format string used for printing
4705 a Perl UV as an unsigned octal integer.
4708 This variable is the size of a UV in bytes.
4711 This variable contains the C type used for Perl's UV.
4713 uvuformat (perlxvf.U):
4714 This variable contains the format string used for printing
4715 a Perl UV as an unsigned decimal integer.
4717 uvxformat (perlxvf.U):
4718 This variable contains the format string used for printing
4719 a Perl UV as an unsigned hexadecimal integer in lowercase abcdef.
4721 uvXUformat (perlxvf.U):
4722 This variable contains the format string used for printing
4723 a Perl UV as an unsigned hexadecimal integer in uppercase ABCDEF.
4725 vendorarch (vendorarch.U):
4726 This variable contains the value of the PERL_VENDORARCH symbol.
4727 It may have a ~ on the front.
4728 The standard distribution will put nothing in this directory.
4729 Vendors who distribute perl may wish to place their own
4730 architecture-dependent modules and extensions in this directory with
4731 MakeMaker Makefile.PL INSTALLDIRS=vendor
4732 or equivalent. See INSTALL for details.
4734 vendorarchexp (vendorarch.U):
4735 This variable is the ~name expanded version of vendorarch, so that you
4736 may use it directly in Makefiles or shell scripts.
4738 vendorbin (vendorbin.U):
4739 This variable contains the eventual value of the VENDORBIN symbol.
4740 It may have a ~ on the front.
4741 The standard distribution will put nothing in this directory.
4742 Vendors who distribute perl may wish to place additional
4743 binaries in this directory with
4744 MakeMaker Makefile.PL INSTALLDIRS=vendor
4745 or equivalent. See INSTALL for details.
4747 vendorbinexp (vendorbin.U):
4748 This variable is the ~name expanded version of vendorbin, so that you
4749 may use it directly in Makefiles or shell scripts.
4751 vendorhtml1 (vendorhtml1.U):
4752 This variable contains the name of the directory for html
4753 pages. It may have a ~ on the front.
4754 The standard distribution will put nothing in this directory.
4755 Vendors who distribute perl may wish to place their own
4756 html pages in this directory with
4757 MakeMaker Makefile.PL INSTALLDIRS=vendor
4758 or equivalent. See INSTALL for details.
4760 vendorhtml1exp (vendorhtml1.U):
4761 This variable is the ~name expanded version of vendorhtml1, so that you
4762 may use it directly in Makefiles or shell scripts.
4764 vendorhtml3 (vendorhtml3.U):
4765 This variable contains the name of the directory for html
4766 library pages. It may have a ~ on the front.
4767 The standard distribution will put nothing in this directory.
4768 Vendors who distribute perl may wish to place their own
4769 html pages for modules and extensions in this directory with
4770 MakeMaker Makefile.PL INSTALLDIRS=vendor
4771 or equivalent. See INSTALL for details.
4773 vendorhtml3exp (vendorhtml3.U):
4774 This variable is the ~name expanded version of vendorhtml3, so that you
4775 may use it directly in Makefiles or shell scripts.
4777 vendorlib (vendorlib.U):
4778 This variable contains the eventual value of the VENDORLIB symbol,
4779 which is the name of the private library for this package.
4780 The standard distribution will put nothing in this directory.
4781 Vendors who distribute perl may wish to place their own
4782 modules in this directory with
4783 MakeMaker Makefile.PL INSTALLDIRS=vendor
4784 or equivalent. See INSTALL for details.
4786 vendorlib_stem (vendorlib.U):
4787 This variable is $vendorlibexp with any trailing version-specific component
4788 removed. The elements in inc_version_list (inc_version_list.U) can
4789 be tacked onto this variable to generate a list of directories to search.
4791 vendorlibexp (vendorlib.U):
4792 This variable is the ~name expanded version of vendorlib, so that you
4793 may use it directly in Makefiles or shell scripts.
4795 vendorman1 (vendorman1.U):
4796 This variable contains the name of the directory for man1
4797 pages. It may have a ~ on the front.
4798 The standard distribution will put nothing in this directory.
4799 Vendors who distribute perl may wish to place their own
4800 man1 pages in this directory with
4801 MakeMaker Makefile.PL INSTALLDIRS=vendor
4802 or equivalent. See INSTALL for details.
4804 vendorman1exp (vendorman1.U):
4805 This variable is the ~name expanded version of vendorman1, so that you
4806 may use it directly in Makefiles or shell scripts.
4808 vendorman3 (vendorman3.U):
4809 This variable contains the name of the directory for man3
4810 pages. It may have a ~ on the front.
4811 The standard distribution will put nothing in this directory.
4812 Vendors who distribute perl may wish to place their own
4813 man3 pages in this directory with
4814 MakeMaker Makefile.PL INSTALLDIRS=vendor
4815 or equivalent. See INSTALL for details.
4817 vendorman3exp (vendorman3.U):
4818 This variable is the ~name expanded version of vendorman3, so that you
4819 may use it directly in Makefiles or shell scripts.
4821 vendorprefix (vendorprefix.U):
4822 This variable holds the full absolute path of the directory below
4823 which the vendor will install add-on packages.
4824 See INSTALL for usage and examples.
4826 vendorprefixexp (vendorprefix.U):
4827 This variable holds the full absolute path of the directory below
4828 which the vendor will install add-on packages. Derived from vendorprefix.
4830 vendorscript (vendorscript.U):
4831 This variable contains the eventual value of the VENDORSCRIPT symbol.
4832 It may have a ~ on the front.
4833 The standard distribution will put nothing in this directory.
4834 Vendors who distribute perl may wish to place additional
4835 executable scripts in this directory with
4836 MakeMaker Makefile.PL INSTALLDIRS=vendor
4837 or equivalent. See INSTALL for details.
4839 vendorscriptexp (vendorscript.U):
4840 This variable is the ~name expanded version of vendorscript, so that you
4841 may use it directly in Makefiles or shell scripts.
4843 version (patchlevel.U):
4844 The full version number of this package, such as 5.6.1 (or 5_6_1).
4845 This combines revision, patchlevel, and subversion to get the
4846 full version number, including any possible subversions.
4847 This is suitable for use as a directory name, and hence is
4848 filesystem dependent.
4850 version_patchlevel_string (patchlevel.U):
4851 This is a string combining version, subversion and
4852 perl_patchlevel (if perl_patchlevel is non-zero).
4853 It is typically something like
4854 'version 7 subversion 1' or
4855 'version 7 subversion 1 patchlevel 11224'
4856 It is computed here to avoid duplication of code in myconfig.SH
4859 versiononly (versiononly.U):
4860 If set, this symbol indicates that only the version-specific
4861 components of a perl installation should be installed.
4862 This may be useful for making a test installation of a new
4863 version without disturbing the existing installation.
4864 Setting versiononly is equivalent to setting installperl's -v option.
4865 In particular, the non-versioned scripts and programs such as
4866 a2p, c2ph, h2xs, pod2*, and perldoc are not installed
4867 (see INSTALL for a more complete list). Nor are the man
4869 Usually, this is undef.
4872 This variable is defined but not used by Configure.
4873 The value is a plain '' and is not useful.
4875 voidflags (voidflags.U):
4876 This variable contains the eventual value of the VOIDFLAGS symbol,
4877 which indicates how much support of the void type is given by this
4878 compiler. See VOIDFLAGS for more info.
4881 This variable holds extra path (space-separated) used to find
4882 libraries on this platform, for example CPU-specific libraries
4883 (on multi-CPU platforms) may be listed here.
4885 xs_apiversion (xs_apiversion.U):
4886 This variable contains the version of the oldest perl binary
4887 compatible with the present perl. perl.c:incpush() and
4888 lib/lib.pm will automatically search in $sitearch for older
4889 directories across major versions back to xs_apiversion.
4890 This is only useful if you have a perl library directory tree
4891 structured like the default one.
4892 See INSTALL for how this works.
4893 The versioned site_perl directory was introduced in 5.005,
4894 so that is the lowest possible value.
4895 Since this can depend on compile time options
4896 it is set by Configure. Other non-default sources
4897 of potential incompatibility, such as multiplicity, threads,
4898 debugging, 64bits, sfio, etc., are not checked for currently,
4899 though in principle we could go snooping around in old
4903 This variable holds the name of the compiler compiler we
4904 want to use in the Makefile. It can be yacc, byacc, or bison -y.
4907 This variable contains any additional yacc flags desired by the
4908 user. It is up to the Makefile to use this.
4911 This variable is defined but not used by Configure.
4912 The value is a plain '' and is not useful.
4915 This variable is used internally by Configure to determine the
4916 full pathname (if any) of the zip program. After Configure runs,
4917 the value is reset to a plain "zip" and is not useful.