1 This file contains a description of all the shell variables whose value is
2 determined by the Configure script. Variables intended for use in C
3 programs (e.g. I_UNISTD) are already described in config_h.SH. [`configpm'
4 generates pod documentation for Config.pm from this file--please try to keep
5 the formatting regular.]
8 This variable defines the extension used for ordinary libraries.
9 For unix, it is '.a'. The '.' is included. Other possible
10 values include '.lib'.
13 This variable defines the extension used for executable files.
14 For unix it is empty. Other possible values include '.exe'.
17 This variable defines the extension used for object files.
18 For unix, it is '.o'. The '.' is included. Other possible
19 values include '.obj'.
22 This variable is set to 'true' if AFS (Andrew File System) is used
23 on the system, 'false' otherwise. It is possible to override this
24 with a hint value or command line option, but you'd better know
27 alignbytes (alignbytes.U):
28 This variable holds the number of bytes required to align a
29 double. Usual values are 2, 4 and 8.
31 ansi2knr (ansi2knr.U):
32 This variable is set if the user needs to run ansi2knr.
33 Currently, this is not supported, so we just abort.
35 aphostname (d_gethname.U):
36 This variable contains the command which can be used to compute the
37 host name. The command is fully qualified by its absolute path, to make
38 it safe when used by a process with super-user privileges.
40 api_revision (patchlevel.U):
41 The three variables, api_revision, api_version, and
42 api_subversion, specify the version of the oldest perl binary
43 compatible with the present perl. In a full version string
44 such as '5.6.1', api_revision is the '5'.
45 Prior to 5.5.640, the format was a floating point number,
47 perl.c:incpush() and lib/lib.pm will automatically search in
48 $sitelib/.. for older directories back to the limit specified
49 by these api_ variables. This is only useful if you have a
50 perl library directory tree structured like the default one.
51 See INSTALL for how this works. The versioned site_perl
52 directory was introduced in 5.005, so that is the lowest
53 possible value. The version list appropriate for the current
54 system is determined in inc_version_list.U.
55 XXX To do: Since compatibility can depend on compile time
56 options (such as bincompat, longlong, etc.) it should
57 (perhaps) be set by Configure, but currently it isn't.
58 Currently, we read a hard-wired value from patchlevel.h.
59 Perhaps what we ought to do is take the hard-wired value from
60 patchlevel.h but then modify it if the current Configure
61 options warrant. patchlevel.h then would use an #ifdef guard.
63 api_subversion (patchlevel.U):
64 The three variables, api_revision, api_version, and
65 api_subversion, specify the version of the oldest perl binary
66 compatible with the present perl. In a full version string
67 such as '5.6.1', api_subversion is the '1'. See api_revision for
70 api_version (patchlevel.U):
71 The three variables, api_revision, api_version, and
72 api_subversion, specify the version of the oldest perl binary
73 compatible with the present perl. In a full version string
74 such as '5.6.1', api_version is the '6'. See api_revision for
75 full details. As a special case, 5.5.0 is rendered in the
76 old-style as 5.005. (In the 5.005_0x maintenance series,
77 this was the only versioned directory in $sitelib.)
79 api_versionstring (patchlevel.U):
80 This variable combines api_revision, api_version, and
81 api_subversion in a format such as 5.6.1 (or 5_6_1) suitable
82 for use as a directory name. This is filesystem dependent.
85 This variable is used internally by Configure to determine the
86 full pathname (if any) of the ar program. After Configure runs,
87 the value is reset to a plain "ar" and is not useful.
90 This variable holds the name of the directory in which the user wants
91 to put architecture-dependent public library files for $package.
92 It is most often a local directory such as /usr/local/lib.
93 Programs using this variable must be prepared to deal
94 with filename expansion.
96 archlibexp (archlib.U):
97 This variable is the same as the archlib variable, but is
98 filename expanded at configuration time, for convenient use.
100 archname64 (use64bits.U):
101 This variable is used for the 64-bitness part of $archname.
103 archname (archname.U):
104 This variable is a short name to characterize the current
105 architecture. It is used mainly to construct the default archlib.
108 This variable defines any additional objects that must be linked
109 in with the program on this architecture. On unix, it is usually
110 empty. It is typically used to include emulations of unix calls
111 or other facilities. For perl on OS/2, for example, this would
115 This variable is used internally by Configure to determine the
116 full pathname (if any) of the awk program. After Configure runs,
117 the value is reset to a plain "awk" and is not useful.
120 The base revision level of this package, from the .package file.
123 This variable is defined but not used by Configure.
124 The value is a plain '' and is not useful.
127 This variable holds the name of the directory in which the user wants
128 to put publicly executable images for the package in question. It
129 is most often a local directory such as /usr/local/bin. Programs using
130 this variable must be prepared to deal with ~name substitution.
132 bincompat5005 (bincompat5005.U):
133 This variable contains y if Perl 5.006 should be binary-compatible
137 This is the same as the bin variable, but is filename expanded at
138 configuration time, for use in your makefiles.
141 This variable is defined but not used by Configure.
142 The value is a plain '' and is not useful.
145 This variable is used internally by Configure to determine the
146 full pathname (if any) of the byacc program. After Configure runs,
147 the value is reset to a plain "byacc" and is not useful.
149 byteorder (byteorder.U):
150 This variable holds the byte order. In the following, larger digits
151 indicate more significance. The variable byteorder is either 4321
152 on a big-endian machine, or 1234 on a little-endian, or 87654321
153 on a Cray ... or 3412 with weird order !
156 This variable contains the \c string if that is what causes the echo
157 command to suppress newline. Otherwise it is null. Correct usage is
158 $echo $n "prompt for a question: $c".
160 castflags (d_castneg.U):
161 This variable contains a flag that precise difficulties the
162 compiler has casting odd floating values to unsigned long:
164 1 = couldn't cast < 0
165 2 = couldn't cast >= 0x80000000
166 4 = couldn't cast in argument expression list
169 This variable is used internally by Configure to determine the
170 full pathname (if any) of the cat program. After Configure runs,
171 the value is reset to a plain "cat" and is not useful.
174 This variable holds the name of a command to execute a C compiler which
175 can resolve multiple global references that happen to have the same
176 name. Usual values are 'cc', 'Mcc', 'cc -M', and 'gcc'.
178 cccdlflags (dlsrc.U):
179 This variable contains any special flags that might need to be
180 passed with 'cc -c' to compile modules to be used to create a shared
181 library that will be used for dynamic loading. For hpux, this
182 should be +z. It is up to the makefile to use it.
185 This variable contains any special flags that might need to be
186 passed to cc to link with a shared library for dynamic loading.
187 It is up to the makefile to use it. For sunos 4.1, it should
191 This variable contains any additional C compiler flags desired by
192 the user. It is up to the Makefile to use this.
194 ccsymbols (Cppsym.U):
195 The variable contains the symbols defined by the C compiler alone.
196 The symbols defined by cpp or by cc when it calls cpp are not in
197 this list, see cppsymbols and cppccsymbols.
198 The list is a space-separated list of symbol=value tokens.
201 Login name of the person who ran the Configure script and answered the
202 questions. This is used to tag both config.sh and config_h.SH.
204 cf_email (cf_email.U):
205 Electronic mail address of the person who ran Configure. This can be
206 used by units that require the user's e-mail, like MailList.U.
209 Holds the output of the "date" command when the configuration file was
210 produced. This is used to tag both config.sh and config_h.SH.
212 charsize (charsize.U):
213 This variable contains the value of the CHARSIZE symbol, which
214 indicates to the C program how many bytes there are in a character.
217 This variable is defined but not used by Configure.
218 The value is a plain '' and is not useful.
221 This variable is defined but not used by Configure.
222 The value is a plain '' and is not useful.
225 This variable is defined but not used by Configure.
226 The value is a plain '' and is not useful.
228 clocktype (d_times.U):
229 This variable holds the type returned by times(). It can be long,
230 or clock_t on BSD sites (in which case <sys/types.h> should be
234 This variable is used internally by Configure to determine the
235 full pathname (if any) of the comm program. After Configure runs,
236 the value is reset to a plain "comm" and is not useful.
239 This variable is defined but not used by Configure.
240 The value is a plain '' and is not useful.
242 CONFIGDOTSH (Oldsyms.U):
243 This is set to 'true' in config.sh so that a shell script
244 sourcing config.sh can tell if it has been sourced already.
246 contains (contains.U):
247 This variable holds the command to do a grep with a proper return
248 status. On most sane systems it is simply "grep". On insane systems
249 it is a grep followed by a cat followed by a test. This variable
250 is primarily for the use of other Configure units.
253 This variable is used internally by Configure to determine the
254 full pathname (if any) of the cp program. After Configure runs,
255 the value is reset to a plain "cp" and is not useful.
258 This variable is defined but not used by Configure.
259 The value is a plain '' and is not useful.
262 This variable is used internally by Configure to determine the
263 full pathname (if any) of the cpp program. After Configure runs,
264 the value is reset to a plain "cpp" and is not useful.
266 cpp_stuff (cpp_stuff.U):
267 This variable contains an identification of the catenation mechanism
268 used by the C preprocessor.
270 cppccsymbols (Cppsym.U):
271 The variable contains the symbols defined by the C compiler
272 when it calls cpp. The symbols defined by the cc alone or cpp
273 alone are not in this list, see ccsymbols and cppsymbols.
274 The list is a space-separated list of symbol=value tokens.
276 cppflags (ccflags.U):
277 This variable holds the flags that will be passed to the C pre-
278 processor. It is up to the Makefile to use it.
280 cpplast (cppstdin.U):
281 This variable has the same functionality as cppminus, only it applies
282 to cpprun and not cppstdin.
284 cppminus (cppstdin.U):
285 This variable contains the second part of the string which will invoke
286 the C preprocessor on the standard input and produce to standard
287 output. This variable will have the value "-" if cppstdin needs
288 a minus to specify standard input, otherwise the value is "".
291 This variable contains the command which will invoke a C preprocessor
292 on standard input and put the output to stdout. It is guaranteed not
293 to be a wrapper and may be a null string if no preprocessor can be
294 made directly available. This preprocessor might be different from the
295 one used by the C compiler. Don't forget to append cpplast after the
296 preprocessor options.
298 cppstdin (cppstdin.U):
299 This variable contains the command which will invoke the C
300 preprocessor on standard input and put the output to stdout.
301 It is primarily used by other Configure units that ask about
302 preprocessor symbols.
304 cppsymbols (Cppsym.U):
305 The variable contains the symbols defined by the C preprocessor
306 alone. The symbols defined by cc or by cc when it calls cpp are
307 not in this list, see ccsymbols and cppccsymbols.
308 The list is a space-separated list of symbol=value tokens.
310 crosscompile (crosscompile.U):
311 This variable conditionally defines the CROSSCOMPILE symbol
312 which signifies that the build process is be a cross-compilation.
313 This is normally set by hints files or from Configure command line.
315 cryptlib (d_crypt.U):
316 This variable holds -lcrypt or the path to a libcrypt.a archive if
317 the crypt() function is not defined in the standard C library. It is
318 up to the Makefile to use this.
321 This variable is used internally by Configure to determine the
322 full pathname (if any) of the csh program. After Configure runs,
323 the value is reset to a plain "csh" and is not useful.
325 d_access (d_access.U):
326 This variable conditionally defines HAS_ACCESS if the access() system
327 call is available to check for access permissions using real IDs.
329 d_accessx (d_accessx.U):
330 This variable conditionally defines the HAS_ACCESSX symbol, which
331 indicates to the C program that the accessx() routine is available.
334 This variable conditionally defines the HAS_ALARM symbol, which
335 indicates to the C program that the alarm() routine is available.
337 d_archlib (archlib.U):
338 This variable conditionally defines ARCHLIB to hold the pathname
339 of architecture-dependent library files for $package. If
340 $archlib is the same as $privlib, then this is set to undef.
343 This variable conditionally defines the HAS_ATOLF symbol, which
344 indicates to the C program that the atolf() routine is available.
347 This variable conditionally defines the HAS_ATOLL symbol, which
348 indicates to the C program that the atoll() routine is available.
350 d_attribut (d_attribut.U):
351 This variable conditionally defines HASATTRIBUTE, which
352 indicates the C compiler can check for function attributes,
353 such as printf formats.
356 This variable conditionally defines the HAS_BCMP symbol if
357 the bcmp() routine is available to compare strings.
360 This variable conditionally defines the HAS_BCOPY symbol if
361 the bcopy() routine is available to copy strings.
363 d_bincompat5005 (bincompat5005.U):
364 This variable conditionally defines BINCOMPAT5005 so that embed.h
365 can take special action if Perl 5.006 should be binary-compatible
366 with Perl 5.005. This is impossible for builds that use features
367 like threads and multiplicity it is always $undef for those versions.
370 This symbol conditionally defines the symbol BSD when running on a
373 d_bsdgetpgrp (d_getpgrp.U):
374 This variable conditionally defines USE_BSD_GETPGRP if
375 getpgrp needs one arguments whereas USG one needs none.
377 d_bsdsetpgrp (d_setpgrp.U):
378 This variable conditionally defines USE_BSD_SETPGRP if
379 setpgrp needs two arguments whereas USG one needs none.
380 See also d_setpgid for a POSIX interface.
383 This variable conditionally defines the HAS_BZERO symbol if
384 the bzero() routine is available to set memory to 0.
386 d_casti32 (d_casti32.U):
387 This variable conditionally defines CASTI32, which indicates
388 whether the C compiler can cast large floats to 32-bit ints.
390 d_castneg (d_castneg.U):
391 This variable conditionally defines CASTNEG, which indicates
392 wether the C compiler can cast negative float to unsigned.
394 d_charvspr (d_vprintf.U):
395 This variable conditionally defines CHARVSPRINTF if this system
396 has vsprintf returning type (char*). The trend seems to be to
397 declare it as "int vsprintf()".
400 This variable conditionally defines the HAS_CHOWN symbol, which
401 indicates to the C program that the chown() routine is available.
403 d_chroot (d_chroot.U):
404 This variable conditionally defines the HAS_CHROOT symbol, which
405 indicates to the C program that the chroot() routine is available.
407 d_chsize (d_chsize.U):
408 This variable conditionally defines the CHSIZE symbol, which
409 indicates to the C program that the chsize() routine is available
410 to truncate files. You might need a -lx to get this routine.
412 d_closedir (d_closedir.U):
413 This variable conditionally defines HAS_CLOSEDIR if closedir() is
417 This variable conditionally defines the HASCONST symbol, which
418 indicates to the C program that this C compiler knows about the
422 This variable conditionally defines the CRYPT symbol, which
423 indicates to the C program that the crypt() routine is available
424 to encrypt passwords and the like.
427 This variable conditionally defines the CSH symbol, which
428 indicates to the C program that the C-shell exists.
430 d_cuserid (d_cuserid.U):
431 This variable conditionally defines the HAS_CUSERID symbol, which
432 indicates to the C program that the cuserid() routine is available
433 to get character login names.
435 d_dbl_dig (d_dbl_dig.U):
436 This variable conditionally defines d_dbl_dig if this system's
437 header files provide DBL_DIG, which is the number of significant
438 digits in a double precision number.
440 d_difftime (d_difftime.U):
441 This variable conditionally defines the HAS_DIFFTIME symbol, which
442 indicates to the C program that the difftime() routine is available.
444 d_dirnamlen (i_dirent.U):
445 This variable conditionally defines DIRNAMLEN, which indicates
446 to the C program that the length of directory entry names is
447 provided by a d_namelen field.
449 d_dlerror (d_dlerror.U):
450 This variable conditionally defines the HAS_DLERROR symbol, which
451 indicates to the C program that the dlerror() routine is available.
453 d_dlopen (d_dlopen.U):
454 This variable conditionally defines the HAS_DLOPEN symbol, which
455 indicates to the C program that the dlopen() routine is available.
457 d_dlsymun (d_dlsymun.U):
458 This variable conditionally defines DLSYM_NEEDS_UNDERSCORE, which
459 indicates that we need to prepend an underscore to the symbol
460 name before calling dlsym().
462 d_dosuid (d_dosuid.U):
463 This variable conditionally defines the symbol DOSUID, which
464 tells the C program that it should insert setuid emulation code
465 on hosts which have setuid #! scripts disabled.
467 d_drand48proto (d_drand48proto.U):
468 This variable conditionally defines the HAS_DRAND48_PROTO symbol,
469 which indicates to the C program that the system provides
470 a prototype for the drand48() function. Otherwise, it is
471 up to the program to supply one.
474 This variable conditionally defines HAS_DUP2 if dup2() is
475 available to duplicate file descriptors.
477 d_eaccess (d_eaccess.U):
478 This variable conditionally defines the HAS_EACCESS symbol, which
479 indicates to the C program that the eaccess() routine is available.
481 d_endgrent (d_endgrent.U):
482 This variable conditionally defines the HAS_ENDGRENT symbol, which
483 indicates to the C program that the endgrent() routine is available
484 for sequential access of the group database.
486 d_endhent (d_endhent.U):
487 This variable conditionally defines HAS_ENDHOSTENT if endhostent() is
488 available to close whatever was being used for host queries.
490 d_endnent (d_endnent.U):
491 This variable conditionally defines HAS_ENDNETENT if endnetent() is
492 available to close whatever was being used for network queries.
494 d_endpent (d_endpent.U):
495 This variable conditionally defines HAS_ENDPROTOENT if endprotoent() is
496 available to close whatever was being used for protocol queries.
498 d_endpwent (d_endpwent.U):
499 This variable conditionally defines the HAS_ENDPWENT symbol, which
500 indicates to the C program that the endpwent() routine is available
501 for sequential access of the passwd database.
503 d_endsent (d_endsent.U):
504 This variable conditionally defines HAS_ENDSERVENT if endservent() is
505 available to close whatever was being used for service queries.
507 d_endspent (d_endspent.U):
508 This variable conditionally defines HAS_ENDSPENT if endspent() is
509 available to finalize the scan of SysV shadow password entries.
511 d_eofnblk (nblock_io.U):
512 This variable conditionally defines EOF_NONBLOCK if EOF can be seen
513 when reading from a non-blocking I/O source.
516 This variable conditionally defines the symbols EUNICE and VAX, which
517 alerts the C program that it must deal with ideosyncracies of VMS.
519 d_fchmod (d_fchmod.U):
520 This variable conditionally defines the HAS_FCHMOD symbol, which
521 indicates to the C program that the fchmod() routine is available
522 to change mode of opened files.
524 d_fchown (d_fchown.U):
525 This variable conditionally defines the HAS_FCHOWN symbol, which
526 indicates to the C program that the fchown() routine is available
527 to change ownership of opened files.
530 This variable conditionally defines the HAS_FCNTL symbol, and indicates
531 whether the fcntl() function exists
533 d_fd_macros (d_fd_set.U):
534 This variable contains the eventual value of the HAS_FD_MACROS symbol,
535 which indicates if your C compiler knows about the macros which
536 manipulate an fd_set.
538 d_fd_set (d_fd_set.U):
539 This variable contains the eventual value of the HAS_FD_SET symbol,
540 which indicates if your C compiler knows about the fd_set typedef.
542 d_fds_bits (d_fd_set.U):
543 This variable contains the eventual value of the HAS_FDS_BITS symbol,
544 which indicates if your fd_set typedef contains the fds_bits member.
545 If you have an fd_set typedef, but the dweebs who installed it did
546 a half-fast job and neglected to provide the macros to manipulate
547 an fd_set, HAS_FDS_BITS will let us know how to fix the gaffe.
549 d_fgetpos (d_fgetpos.U):
550 This variable conditionally defines HAS_FGETPOS if fgetpos() is
551 available to get the file position indicator.
553 d_flexfnam (d_flexfnam.U):
554 This variable conditionally defines the FLEXFILENAMES symbol, which
555 indicates that the system supports filenames longer than 14 characters.
558 This variable conditionally defines HAS_FLOCK if flock() is
559 available to do file locking.
562 This variable conditionally defines the HAS_FORK symbol, which
563 indicates to the C program that the fork() routine is available.
565 d_fpathconf (d_pathconf.U):
566 This variable conditionally defines the HAS_FPATHCONF symbol, which
567 indicates to the C program that the pathconf() routine is available
568 to determine file-system related limits and options associated
569 with a given open file descriptor.
572 This symbol will be defined if the C compiler supports fpos64_t.
574 d_fs_data_s (d_fs_data_s.U):
575 This variable conditionally defines the HAS_STRUCT_FS_DATA symbol,
576 which indicates that the struct fs_data is supported.
578 d_fseeko (d_fseeko.U):
579 This variable conditionally defines the HAS_FSEEKO symbol, which
580 indicates to the C program that the fseeko() routine is available.
582 d_fsetpos (d_fsetpos.U):
583 This variable conditionally defines HAS_FSETPOS if fsetpos() is
584 available to set the file position indicator.
586 d_fstatfs (d_fstatfs.U):
587 This variable conditionally defines the HAS_FSTATFS symbol, which
588 indicates to the C program that the fstatfs() routine is available.
590 d_fstatvfs (d_statvfs.U):
591 This variable conditionally defines the HAS_FSTATVFS symbol, which
592 indicates to the C program that the fstatvfs() routine is available.
594 d_ftello (d_ftello.U):
595 This variable conditionally defines the HAS_FTELLO symbol, which
596 indicates to the C program that the ftello() routine is available.
599 This variable conditionally defines the HAS_FTIME symbol, which indicates
600 that the ftime() routine exists. The ftime() routine is basically
601 a sub-second accuracy clock.
603 d_Gconvert (d_gconvert.U):
604 This variable holds what Gconvert is defined as to convert
605 floating point numbers into strings. It could be 'gconvert'
606 or a more complex macro emulating gconvert with gcvt() or sprintf.
608 d_Gconvert='gconvert((x),(n),(t),(b))'
609 d_Gconvert='gcvt((x),(n),(b))'
610 d_Gconvert='sprintf((b),"%.*g",(n),(x))'
612 d_getgrent (d_getgrent.U):
613 This variable conditionally defines the HAS_GETGRENT symbol, which
614 indicates to the C program that the getgrent() routine is available
615 for sequential access of the group database.
617 d_getgrps (d_getgrps.U):
618 This variable conditionally defines the HAS_GETGROUPS symbol, which
619 indicates to the C program that the getgroups() routine is available
620 to get the list of process groups.
622 d_gethbyaddr (d_gethbyad.U):
623 This variable conditionally defines the HAS_GETHOSTBYADDR symbol, which
624 indicates to the C program that the gethostbyaddr() routine is available
625 to look up hosts by their IP addresses.
627 d_gethbyname (d_gethbynm.U):
628 This variable conditionally defines the HAS_GETHOSTBYNAME symbol, which
629 indicates to the C program that the gethostbyname() routine is available
630 to look up host names in some data base or other.
632 d_gethent (d_gethent.U):
633 This variable conditionally defines HAS_GETHOSTENT if gethostent() is
634 available to look up host names in some data base or another.
636 d_gethname (d_gethname.U):
637 This variable conditionally defines the HAS_GETHOSTNAME symbol, which
638 indicates to the C program that the gethostname() routine may be
639 used to derive the host name.
641 d_gethostprotos (d_gethostprotos.U):
642 This variable conditionally defines the HAS_GETHOST_PROTOS symbol,
643 which indicates to the C program that <netdb.h> supplies
644 prototypes for the various gethost*() functions.
645 See also netdbtype.U for probing for various netdb types.
647 d_getlogin (d_getlogin.U):
648 This variable conditionally defines the HAS_GETLOGIN symbol, which
649 indicates to the C program that the getlogin() routine is available
650 to get the login name.
652 d_getmnt (d_getmnt.U):
653 This variable conditionally defines the HAS_GETMNT symbol, which
654 indicates to the C program that the getmnt() routine is available
655 to retrieve one or more mount info blocks by filename.
657 d_getmntent (d_getmntent.U):
658 This variable conditionally defines the HAS_GETMNTENT symbol, which
659 indicates to the C program that the getmntent() routine is available
660 to iterate through mounted files to get their mount info.
662 d_getnbyaddr (d_getnbyad.U):
663 This variable conditionally defines the HAS_GETNETBYADDR symbol, which
664 indicates to the C program that the getnetbyaddr() routine is available
665 to look up networks by their IP addresses.
667 d_getnbyname (d_getnbynm.U):
668 This variable conditionally defines the HAS_GETNETBYNAME symbol, which
669 indicates to the C program that the getnetbyname() routine is available
670 to look up networks by their names.
672 d_getnent (d_getnent.U):
673 This variable conditionally defines HAS_GETNETENT if getnetent() is
674 available to look up network names in some data base or another.
676 d_getnetprotos (d_getnetprotos.U):
677 This variable conditionally defines the HAS_GETNET_PROTOS symbol,
678 which indicates to the C program that <netdb.h> supplies
679 prototypes for the various getnet*() functions.
680 See also netdbtype.U for probing for various netdb types.
682 d_getpbyname (d_getprotby.U):
683 This variable conditionally defines the HAS_GETPROTOBYNAME
684 symbol, which indicates to the C program that the
685 getprotobyname() routine is available to look up protocols
688 d_getpbynumber (d_getprotby.U):
689 This variable conditionally defines the HAS_GETPROTOBYNUMBER
690 symbol, which indicates to the C program that the
691 getprotobynumber() routine is available to look up protocols
694 d_getpent (d_getpent.U):
695 This variable conditionally defines HAS_GETPROTOENT if getprotoent() is
696 available to look up protocols in some data base or another.
698 d_getpgid (d_getpgid.U):
699 This variable conditionally defines the HAS_GETPGID symbol, which
700 indicates to the C program that the getpgid(pid) function
701 is available to get the process group id.
703 d_getpgrp2 (d_getpgrp2.U):
704 This variable conditionally defines the HAS_GETPGRP2 symbol, which
705 indicates to the C program that the getpgrp2() (as in DG/UX) routine
706 is available to get the current process group.
708 d_getpgrp (d_getpgrp.U):
709 This variable conditionally defines HAS_GETPGRP if getpgrp() is
710 available to get the current process group.
712 d_getppid (d_getppid.U):
713 This variable conditionally defines the HAS_GETPPID symbol, which
714 indicates to the C program that the getppid() routine is available
715 to get the parent process ID.
717 d_getprior (d_getprior.U):
718 This variable conditionally defines HAS_GETPRIORITY if getpriority()
719 is available to get a process's priority.
721 d_getprotoprotos (d_getprotoprotos.U):
722 This variable conditionally defines the HAS_GETPROTO_PROTOS symbol,
723 which indicates to the C program that <netdb.h> supplies
724 prototypes for the various getproto*() functions.
725 See also netdbtype.U for probing for various netdb types.
727 d_getpwent (d_getpwent.U):
728 This variable conditionally defines the HAS_GETPWENT symbol, which
729 indicates to the C program that the getpwent() routine is available
730 for sequential access of the passwd database.
732 d_getsbyname (d_getsrvby.U):
733 This variable conditionally defines the HAS_GETSERVBYNAME
734 symbol, which indicates to the C program that the
735 getservbyname() routine is available to look up services
738 d_getsbyport (d_getsrvby.U):
739 This variable conditionally defines the HAS_GETSERVBYPORT
740 symbol, which indicates to the C program that the
741 getservbyport() routine is available to look up services
744 d_getsent (d_getsent.U):
745 This variable conditionally defines HAS_GETSERVENT if getservent() is
746 available to look up network services in some data base or another.
748 d_getservprotos (d_getservprotos.U):
749 This variable conditionally defines the HAS_GETSERV_PROTOS symbol,
750 which indicates to the C program that <netdb.h> supplies
751 prototypes for the various getserv*() functions.
752 See also netdbtype.U for probing for various netdb types.
754 d_getspent (d_getspent.U):
755 This variable conditionally defines HAS_GETSPENT if getspent() is
756 available to retrieve SysV shadow password entries sequentially.
758 d_getspnam (d_getspnam.U):
759 This variable conditionally defines HAS_GETSPNAM if getspnam() is
760 available to retrieve SysV shadow password entries by name.
762 d_gettimeod (d_ftime.U):
763 This variable conditionally defines the HAS_GETTIMEOFDAY symbol, which
764 indicates that the gettimeofday() system call exists (to obtain a
765 sub-second accuracy clock). You should probably include <sys/resource.h>.
767 d_gnulibc (d_gnulibc.U):
768 Defined if we're dealing with the GNU C Library.
770 d_grpasswd (i_grp.U):
771 This variable conditionally defines GRPASSWD, which indicates
772 that struct group in <grp.h> contains gr_passwd.
774 d_hasmntopt (d_hasmntopt.U):
775 This variable conditionally defines the HAS_HASMNTOPT symbol, which
776 indicates to the C program that the hasmntopt() routine is available
777 to query the mount options of file systems.
780 This variable conditionally defines HAS_HTONL if htonl() and its
781 friends are available to do network order byte swapping.
783 d_index (d_strchr.U):
784 This variable conditionally defines HAS_INDEX if index() and
785 rindex() are available for string searching.
787 d_inetaton (d_inetaton.U):
788 This variable conditionally defines the HAS_INET_ATON symbol, which
789 indicates to the C program that the inet_aton() function is available
790 to parse IP address "dotted-quad" strings.
792 d_int64t (d_int64t.U):
793 This symbol will be defined if the C compiler supports int64_t.
795 d_isascii (d_isascii.U):
796 This variable conditionally defines the HAS_ISASCII constant,
797 which indicates to the C program that isascii() is available.
799 d_killpg (d_killpg.U):
800 This variable conditionally defines the HAS_KILLPG symbol, which
801 indicates to the C program that the killpg() routine is available
802 to kill process groups.
804 d_lchown (d_lchown.U):
805 This variable conditionally defines the HAS_LCHOWN symbol, which
806 indicates to the C program that the lchown() routine is available
807 to operate on a symbolic link (instead of following the link).
809 d_ldbl_dig (d_ldbl_dig.U):
810 This variable conditionally defines d_ldbl_dig if this system's
811 header files provide LDBL_DIG, which is the number of significant
812 digits in a long double precision number.
815 This variable conditionally defines HAS_LINK if link() is
816 available to create hard links.
818 d_locconv (d_locconv.U):
819 This variable conditionally defines HAS_LOCALECONV if localeconv() is
820 available for numeric and monetary formatting conventions.
823 This variable conditionally defines HAS_LOCKF if lockf() is
824 available to do file locking.
826 d_longdbl (d_longdbl.U):
827 This variable conditionally defines HAS_LONG_DOUBLE if
828 the long double type is supported.
830 d_longlong (d_longlong.U):
831 This variable conditionally defines HAS_LONG_LONG if
832 the long long type is supported.
835 This variable conditionally defines HAS_LSTAT if lstat() is
836 available to do file stats on symbolic links.
839 This variable conditionally defines the HAS_MBLEN symbol, which
840 indicates to the C program that the mblen() routine is available
841 to find the number of bytes in a multibye character.
843 d_mbstowcs (d_mbstowcs.U):
844 This variable conditionally defines the HAS_MBSTOWCS symbol, which
845 indicates to the C program that the mbstowcs() routine is available
846 to convert a multibyte string into a wide character string.
848 d_mbtowc (d_mbtowc.U):
849 This variable conditionally defines the HAS_MBTOWC symbol, which
850 indicates to the C program that the mbtowc() routine is available
851 to convert multibyte to a wide character.
853 d_memchr (d_memchr.U):
854 This variable conditionally defines the HAS_MEMCHR symbol, which
855 indicates to the C program that the memchr() routine is available
856 to locate characters within a C string.
858 d_memcmp (d_memcmp.U):
859 This variable conditionally defines the HAS_MEMCMP symbol, which
860 indicates to the C program that the memcmp() routine is available
861 to compare blocks of memory.
863 d_memcpy (d_memcpy.U):
864 This variable conditionally defines the HAS_MEMCPY symbol, which
865 indicates to the C program that the memcpy() routine is available
866 to copy blocks of memory.
868 d_memmove (d_memmove.U):
869 This variable conditionally defines the HAS_MEMMOVE symbol, which
870 indicates to the C program that the memmove() routine is available
871 to copy potentatially overlapping blocks of memory.
873 d_memset (d_memset.U):
874 This variable conditionally defines the HAS_MEMSET symbol, which
875 indicates to the C program that the memset() routine is available
876 to set blocks of memory.
879 This variable conditionally defines the HAS_MKDIR symbol, which
880 indicates to the C program that the mkdir() routine is available
881 to create directories..
883 d_mkfifo (d_mkfifo.U):
884 This variable conditionally defines the HAS_MKFIFO symbol, which
885 indicates to the C program that the mkfifo() routine is available.
887 d_mktime (d_mktime.U):
888 This variable conditionally defines the HAS_MKTIME symbol, which
889 indicates to the C program that the mktime() routine is available.
892 This variable conditionally defines the HAS_MSG symbol, which
893 indicates that the entire msg*(2) library is present.
895 d_msg_ctrunc (d_socket.U):
896 This variable conditionally defines the HAS_MSG_CTRUNC symbol,
897 which indicates that the MSG_CTRUNC is available. #ifdef is
898 not enough because it may be an enum, glibc has been known to do this.
900 d_msg_dontroute (d_socket.U):
901 This variable conditionally defines the HAS_MSG_DONTROUTE symbol,
902 which indicates that the MSG_DONTROUTE is available. #ifdef is
903 not enough because it may be an enum, glibc has been known to do this.
905 d_msg_oob (d_socket.U):
906 This variable conditionally defines the HAS_MSG_OOB symbol,
907 which indicates that the MSG_OOB is available. #ifdef is
908 not enough because it may be an enum, glibc has been known to do this.
910 d_msg_peek (d_socket.U):
911 This variable conditionally defines the HAS_MSG_PEEK symbol,
912 which indicates that the MSG_PEEK is available. #ifdef is
913 not enough because it may be an enum, glibc has been known to do this.
915 d_msg_proxy (d_socket.U):
916 This variable conditionally defines the HAS_MSG_PROXY symbol,
917 which indicates that the MSG_PROXY is available. #ifdef is
918 not enough because it may be an enum, glibc has been known to do this.
920 d_msgctl (d_msgctl.U):
921 This variable conditionally defines the HAS_MSGCTL symbol, which
922 indicates to the C program that the msgctl() routine is available.
924 d_msgget (d_msgget.U):
925 This variable conditionally defines the HAS_MSGGET symbol, which
926 indicates to the C program that the msgget() routine is available.
928 d_msgrcv (d_msgrcv.U):
929 This variable conditionally defines the HAS_MSGRCV symbol, which
930 indicates to the C program that the msgrcv() routine is available.
932 d_msgsnd (d_msgsnd.U):
933 This variable conditionally defines the HAS_MSGSND symbol, which
934 indicates to the C program that the msgsnd() routine is available.
936 d_mymalloc (mallocsrc.U):
937 This variable conditionally defines MYMALLOC in case other parts
938 of the source want to take special action if MYMALLOC is used.
939 This may include different sorts of profiling or error detection.
942 This variable conditionally defines the HAS_NICE symbol, which
943 indicates to the C program that the nice() routine is available.
946 This symbol will be defined if the C compiler supports off64_t.
948 d_old_pthread_create_joinable (d_pthrattrj.U):
949 This variable conditionally defines pthread_create_joinable.
950 undef if pthread.h defines PTHREAD_CREATE_JOINABLE.
952 d_oldpthreads (usethreads.U):
953 This variable conditionally defines the OLD_PTHREADS_API symbol,
954 and indicates that Perl should be built to use the old
955 draft POSIX threads API. This is only potentially meaningful if
958 d_oldsock (d_socket.U):
959 This variable conditionally defines the OLDSOCKET symbol, which
960 indicates that the BSD socket interface is based on 4.1c and not 4.2.
963 This variable conditionally defines the HAS_OPEN3 manifest constant,
964 which indicates to the C program that the 3 argument version of
965 the open(2) function is available.
967 d_pathconf (d_pathconf.U):
968 This variable conditionally defines the HAS_PATHCONF symbol, which
969 indicates to the C program that the pathconf() routine is available
970 to determine file-system related limits and options associated
971 with a given filename.
974 This variable conditionally defines the HAS_PAUSE symbol, which
975 indicates to the C program that the pause() routine is available
976 to suspend a process until a signal is received.
978 d_phostname (d_gethname.U):
979 This variable conditionally defines the HAS_PHOSTNAME symbol, which
980 contains the shell command which, when fed to popen(), may be
981 used to derive the host name.
984 This variable conditionally defines the HAS_PIPE symbol, which
985 indicates to the C program that the pipe() routine is available
986 to create an inter-process channel.
989 This variable conditionally defines the HAS_POLL symbol, which
990 indicates to the C program that the poll() routine is available
991 to poll active file descriptors.
993 d_portable (d_portable.U):
994 This variable conditionally defines the PORTABLE symbol, which
995 indicates to the C program that it should not assume that it is
996 running on the machine it was compiled on.
998 d_PRId64 (quadfio.U):
999 This variable conditionally defines the PERL_PRId64 symbol, which
1000 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1002 d_PRIeldbl (longdblfio.U):
1003 This variable conditionally defines the PERL_PRIfldlbl symbol, which
1004 indiciates that stdio has a symbol to print long doubles.
1006 d_PRIEldbl (longdblfio.U):
1007 This variable conditionally defines the PERL_PRIfldlbl symbol, which
1008 indiciates that stdio has a symbol to print long doubles.
1010 d_PRIfldbl (longdblfio.U):
1011 This variable conditionally defines the PERL_PRIfldlbl symbol, which
1012 indiciates that stdio has a symbol to print long doubles.
1014 d_PRIFldbl (longdblfio.U):
1015 This variable conditionally defines the PERL_PRIfldlbl symbol, which
1016 indiciates that stdio has a symbol to print long doubles.
1018 d_PRIgldbl (longdblfio.U):
1019 This variable conditionally defines the PERL_PRIfldlbl symbol, which
1020 indiciates that stdio has a symbol to print long doubles.
1022 d_PRIGldbl (longdblfio.U):
1023 This variable conditionally defines the PERL_PRIfldlbl symbol, which
1024 indiciates that stdio has a symbol to print long doubles.
1026 d_PRIi64 (quadfio.U):
1027 This variable conditionally defines the PERL_PRIi64 symbol, which
1028 indiciates that stdio has a symbol to print 64-bit decimal numbers.
1030 d_PRIo64 (quadfio.U):
1031 This variable conditionally defines the PERL_PRIo64 symbol, which
1032 indiciates that stdio has a symbol to print 64-bit octal numbers.
1034 d_PRIu64 (quadfio.U):
1035 This variable conditionally defines the PERL_PRIu64 symbol, which
1036 indiciates that stdio has a symbol to print 64-bit unsigned decimal
1039 d_PRIx64 (quadfio.U):
1040 This variable conditionally defines the PERL_PRIx64 symbol, which
1041 indiciates that stdio has a symbol to print 64-bit hexadecimal numbers.
1043 d_PRIX64 (quadfio.U):
1044 This variable conditionally defines the PERL_PRIX64 symbol, which
1045 indiciates that stdio has a symbol to print 64-bit hExADECimAl numbers.
1047 d_pthread_yield (d_pthread_y.U):
1048 This variable conditionally defines the HAS_PTHREAD_YIELD
1049 symbol if the pthread_yield routine is available to yield
1050 the execution of the current thread.
1053 This variable conditionally defines PWAGE, which indicates
1054 that struct passwd contains pw_age.
1056 d_pwchange (i_pwd.U):
1057 This variable conditionally defines PWCHANGE, which indicates
1058 that struct passwd contains pw_change.
1060 d_pwclass (i_pwd.U):
1061 This variable conditionally defines PWCLASS, which indicates
1062 that struct passwd contains pw_class.
1064 d_pwcomment (i_pwd.U):
1065 This variable conditionally defines PWCOMMENT, which indicates
1066 that struct passwd contains pw_comment.
1068 d_pwexpire (i_pwd.U):
1069 This variable conditionally defines PWEXPIRE, which indicates
1070 that struct passwd contains pw_expire.
1072 d_pwgecos (i_pwd.U):
1073 This variable conditionally defines PWGECOS, which indicates
1074 that struct passwd contains pw_gecos.
1076 d_pwpasswd (i_pwd.U):
1077 This variable conditionally defines PWPASSWD, which indicates
1078 that struct passwd contains pw_passwd.
1080 d_pwquota (i_pwd.U):
1081 This variable conditionally defines PWQUOTA, which indicates
1082 that struct passwd contains pw_quota.
1084 d_qgcvt (d_qgcvt.U):
1085 This variable conditionally defines the HAS_QGCVT symbol, which
1086 indicates to the C program that the qgcvt() routine is available.
1088 d_quad (quadtype.U):
1089 This variable, if defined, tells that there's a 64-bit integer type,
1092 d_readdir (d_readdir.U):
1093 This variable conditionally defines HAS_READDIR if readdir() is
1094 available to read directory entries.
1096 d_readlink (d_readlink.U):
1097 This variable conditionally defines the HAS_READLINK symbol, which
1098 indicates to the C program that the readlink() routine is available
1099 to read the value of a symbolic link.
1101 d_rename (d_rename.U):
1102 This variable conditionally defines the HAS_RENAME symbol, which
1103 indicates to the C program that the rename() routine is available
1106 d_rewinddir (d_readdir.U):
1107 This variable conditionally defines HAS_REWINDDIR if rewinddir() is
1110 d_rmdir (d_rmdir.U):
1111 This variable conditionally defines HAS_RMDIR if rmdir() is
1112 available to remove directories.
1114 d_safebcpy (d_safebcpy.U):
1115 This variable conditionally defines the HAS_SAFE_BCOPY symbol if
1116 the bcopy() routine can do overlapping copies.
1118 d_safemcpy (d_safemcpy.U):
1119 This variable conditionally defines the HAS_SAFE_MEMCPY symbol if
1120 the memcpy() routine can do overlapping copies.
1122 d_sanemcmp (d_sanemcmp.U):
1123 This variable conditionally defines the HAS_SANE_MEMCMP symbol if
1124 the memcpy() routine is available and can be used to compare relative
1125 magnitudes of chars with their high bits set.
1127 d_sched_yield (d_pthread_y.U):
1128 This variable conditionally defines the HAS_SCHED_YIELD
1129 symbol if the sched_yield routine is available to yield
1130 the execution of the current thread.
1132 d_scm_rights (d_socket.U):
1133 This variable conditionally defines the HAS_SCM_RIGHTS symbol,
1134 which indicates that the SCM_RIGHTS is available. #ifdef is
1135 not enough because it may be an enum, glibc has been known to do this.
1137 d_seekdir (d_readdir.U):
1138 This variable conditionally defines HAS_SEEKDIR if seekdir() is
1141 d_select (d_select.U):
1142 This variable conditionally defines HAS_SELECT if select() is
1143 available to select active file descriptors. A <sys/time.h>
1144 inclusion may be necessary for the timeout field.
1147 This variable conditionally defines the HAS_SEM symbol, which
1148 indicates that the entire sem*(2) library is present.
1150 d_semctl (d_semctl.U):
1151 This variable conditionally defines the HAS_SEMCTL symbol, which
1152 indicates to the C program that the semctl() routine is available.
1154 d_semctl_semid_ds (d_union_semun.U):
1155 This variable conditionally defines USE_SEMCTL_SEMID_DS, which
1156 indicates that struct semid_ds * is to be used for semctl IPC_STAT.
1158 d_semctl_semun (d_union_semun.U):
1159 This variable conditionally defines USE_SEMCTL_SEMUN, which
1160 indicates that union semun is to be used for semctl IPC_STAT.
1162 d_semget (d_semget.U):
1163 This variable conditionally defines the HAS_SEMGET symbol, which
1164 indicates to the C program that the semget() routine is available.
1166 d_semop (d_semop.U):
1167 This variable conditionally defines the HAS_SEMOP symbol, which
1168 indicates to the C program that the semop() routine is available.
1170 d_setegid (d_setegid.U):
1171 This variable conditionally defines the HAS_SETEGID symbol, which
1172 indicates to the C program that the setegid() routine is available
1173 to change the effective gid of the current program.
1175 d_seteuid (d_seteuid.U):
1176 This variable conditionally defines the HAS_SETEUID symbol, which
1177 indicates to the C program that the seteuid() routine is available
1178 to change the effective uid of the current program.
1180 d_setgrent (d_setgrent.U):
1181 This variable conditionally defines the HAS_SETGRENT symbol, which
1182 indicates to the C program that the setgrent() routine is available
1183 for initializing sequential access to the group database.
1185 d_setgrps (d_setgrps.U):
1186 This variable conditionally defines the HAS_SETGROUPS symbol, which
1187 indicates to the C program that the setgroups() routine is available
1188 to set the list of process groups.
1190 d_sethent (d_sethent.U):
1191 This variable conditionally defines HAS_SETHOSTENT if sethostent() is
1194 d_setlinebuf (d_setlnbuf.U):
1195 This variable conditionally defines the HAS_SETLINEBUF symbol, which
1196 indicates to the C program that the setlinebuf() routine is available
1197 to change stderr or stdout from block-buffered or unbuffered to a
1200 d_setlocale (d_setlocale.U):
1201 This variable conditionally defines HAS_SETLOCALE if setlocale() is
1202 available to handle locale-specific ctype implementations.
1204 d_setnent (d_setnent.U):
1205 This variable conditionally defines HAS_SETNETENT if setnetent() is
1208 d_setpent (d_setpent.U):
1209 This variable conditionally defines HAS_SETPROTOENT if setprotoent() is
1212 d_setpgid (d_setpgid.U):
1213 This variable conditionally defines the HAS_SETPGID symbol if the
1214 setpgid(pid, gpid) function is available to set process group ID.
1216 d_setpgrp2 (d_setpgrp2.U):
1217 This variable conditionally defines the HAS_SETPGRP2 symbol, which
1218 indicates to the C program that the setpgrp2() (as in DG/UX) routine
1219 is available to set the current process group.
1221 d_setpgrp (d_setpgrp.U):
1222 This variable conditionally defines HAS_SETPGRP if setpgrp() is
1223 available to set the current process group.
1225 d_setprior (d_setprior.U):
1226 This variable conditionally defines HAS_SETPRIORITY if setpriority()
1227 is available to set a process's priority.
1229 d_setpwent (d_setpwent.U):
1230 This variable conditionally defines the HAS_SETPWENT symbol, which
1231 indicates to the C program that the setpwent() routine is available
1232 for initializing sequential access to the passwd database.
1234 d_setregid (d_setregid.U):
1235 This variable conditionally defines HAS_SETREGID if setregid() is
1236 available to change the real and effective gid of the current
1239 d_setresgid (d_setregid.U):
1240 This variable conditionally defines HAS_SETRESGID if setresgid() is
1241 available to change the real, effective and saved gid of the current
1244 d_setresuid (d_setreuid.U):
1245 This variable conditionally defines HAS_SETREUID if setresuid() is
1246 available to change the real, effective and saved uid of the current
1249 d_setreuid (d_setreuid.U):
1250 This variable conditionally defines HAS_SETREUID if setreuid() is
1251 available to change the real and effective uid of the current
1254 d_setrgid (d_setrgid.U):
1255 This variable conditionally defines the HAS_SETRGID symbol, which
1256 indicates to the C program that the setrgid() routine is available
1257 to change the real gid of the current program.
1259 d_setruid (d_setruid.U):
1260 This variable conditionally defines the HAS_SETRUID symbol, which
1261 indicates to the C program that the setruid() routine is available
1262 to change the real uid of the current program.
1264 d_setsent (d_setsent.U):
1265 This variable conditionally defines HAS_SETSERVENT if setservent() is
1268 d_setsid (d_setsid.U):
1269 This variable conditionally defines HAS_SETSID if setsid() is
1270 available to set the process group ID.
1272 d_setspent (d_setspent.U):
1273 This variable conditionally defines HAS_SETSPENT if setspent() is
1274 available to initialize the scan of SysV shadow password entries.
1276 d_setvbuf (d_setvbuf.U):
1277 This variable conditionally defines the HAS_SETVBUF symbol, which
1278 indicates to the C program that the setvbuf() routine is available
1279 to change buffering on an open stdio stream.
1282 This variable conditionally defines the USE_SFIO symbol,
1283 and indicates whether sfio is available (and should be used).
1286 This variable conditionally defines the HAS_SHM symbol, which
1287 indicates that the entire shm*(2) library is present.
1289 d_shmat (d_shmat.U):
1290 This variable conditionally defines the HAS_SHMAT symbol, which
1291 indicates to the C program that the shmat() routine is available.
1293 d_shmatprototype (d_shmat.U):
1294 This variable conditionally defines the HAS_SHMAT_PROTOTYPE
1295 symbol, which indicates that sys/shm.h has a prototype for
1298 d_shmctl (d_shmctl.U):
1299 This variable conditionally defines the HAS_SHMCTL symbol, which
1300 indicates to the C program that the shmctl() routine is available.
1302 d_shmdt (d_shmdt.U):
1303 This variable conditionally defines the HAS_SHMDT symbol, which
1304 indicates to the C program that the shmdt() routine is available.
1306 d_shmget (d_shmget.U):
1307 This variable conditionally defines the HAS_SHMGET symbol, which
1308 indicates to the C program that the shmget() routine is available.
1310 d_sigaction (d_sigaction.U):
1311 This variable conditionally defines the HAS_SIGACTION symbol, which
1312 indicates that the Vr4 sigaction() routine is available.
1314 d_sigsetjmp (d_sigsetjmp.U):
1315 This variable conditionally defines the HAS_SIGSETJMP symbol,
1316 which indicates that the sigsetjmp() routine is available to
1317 call setjmp() and optionally save the process's signal mask.
1319 d_socket (d_socket.U):
1320 This variable conditionally defines HAS_SOCKET, which indicates
1321 that the BSD socket interface is supported.
1323 d_sockpair (d_socket.U):
1324 This variable conditionally defines the HAS_SOCKETPAIR symbol, which
1325 indicates that the BSD socketpair() is supported.
1327 d_sqrtl (d_sqrtl.U):
1328 This variable conditionally defines the HAS_SQRTL symbol, which
1329 indicates to the C program that the sqrtl() routine is available.
1331 d_statblks (d_statblks.U):
1332 This variable conditionally defines USE_STAT_BLOCKS
1333 if this system has a stat structure declaring
1334 st_blksize and st_blocks.
1336 d_statfs_f_flags (d_statfs_f_flags.U):
1337 This variable conditionally defines the HAS_STRUCT_STATFS_F_FLAGS
1338 symbol, which indicates to struct statfs from has f_flags member.
1339 This kind of struct statfs is coming from sys/mount.h (BSD),
1340 not from sys/statfs.h (SYSV).
1342 d_statfs_s (d_statfs_s.U):
1343 This variable conditionally defines the HAS_STRUCT_STATFS symbol,
1344 which indicates that the struct statfs is supported.
1346 d_statvfs (d_statvfs.U):
1347 This variable conditionally defines the HAS_STATVFS symbol, which
1348 indicates to the C program that the statvfs() routine is available.
1350 d_stdio_cnt_lval (d_stdstdio.U):
1351 This variable conditionally defines STDIO_CNT_LVALUE if the
1352 FILE_cnt macro can be used as an lvalue.
1354 d_stdio_ptr_lval (d_stdstdio.U):
1355 This variable conditionally defines STDIO_PTR_LVALUE if the
1356 FILE_ptr macro can be used as an lvalue.
1358 d_stdio_stream_array (stdio_streams.U):
1359 This variable tells whether there is an array holding
1362 d_stdiobase (d_stdstdio.U):
1363 This variable conditionally defines USE_STDIO_BASE if this system
1364 has a FILE structure declaring a usable _base field (or equivalent)
1367 d_stdstdio (d_stdstdio.U):
1368 This variable conditionally defines USE_STDIO_PTR if this system
1369 has a FILE structure declaring usable _ptr and _cnt fields (or
1370 equivalent) in stdio.h.
1372 d_strchr (d_strchr.U):
1373 This variable conditionally defines HAS_STRCHR if strchr() and
1374 strrchr() are available for string searching.
1376 d_strcoll (d_strcoll.U):
1377 This variable conditionally defines HAS_STRCOLL if strcoll() is
1378 available to compare strings using collating information.
1380 d_strctcpy (d_strctcpy.U):
1381 This variable conditionally defines the USE_STRUCT_COPY symbol, which
1382 indicates to the C program that this C compiler knows how to copy
1385 d_strerrm (d_strerror.U):
1386 This variable holds what Strerrr is defined as to translate an error
1387 code condition into an error message string. It could be 'strerror'
1388 or a more complex macro emulating strrror with sys_errlist[], or the
1389 "unknown" string when both strerror and sys_errlist are missing.
1391 d_strerror (d_strerror.U):
1392 This variable conditionally defines HAS_STRERROR if strerror() is
1393 available to translate error numbers to strings.
1395 d_strtod (d_strtod.U):
1396 This variable conditionally defines the HAS_STRTOD symbol, which
1397 indicates to the C program that the strtod() routine is available
1398 to provide better numeric string conversion than atof().
1400 d_strtol (d_strtol.U):
1401 This variable conditionally defines the HAS_STRTOL symbol, which
1402 indicates to the C program that the strtol() routine is available
1403 to provide better numeric string conversion than atoi() and friends.
1405 d_strtold (d_strtold.U):
1406 This variable conditionally defines the HAS_STRTOLD symbol, which
1407 indicates to the C program that the strtold() routine is available.
1409 d_strtoul (d_strtoul.U):
1410 This variable conditionally defines the HAS_STRTOUL symbol, which
1411 indicates to the C program that the strtoul() routine is available
1412 to provide conversion of strings to unsigned long.
1414 d_strtoull (d_strtoull.U):
1415 This variable conditionally defines the HAS_STRTOULL symbol, which
1416 indicates to the C program that the strtoull() routine is available.
1418 d_strtouq (d_strtouq.U):
1419 This variable conditionally defines the HAS_STRTOUQ symbol, which
1420 indicates to the C program that the strtouq() routine is available.
1422 d_strxfrm (d_strxfrm.U):
1423 This variable conditionally defines HAS_STRXFRM if strxfrm() is
1424 available to transform strings.
1426 d_suidsafe (d_dosuid.U):
1427 This variable conditionally defines SETUID_SCRIPTS_ARE_SECURE_NOW
1428 if setuid scripts can be secure. This test looks in /dev/fd/.
1430 d_symlink (d_symlink.U):
1431 This variable conditionally defines the HAS_SYMLINK symbol, which
1432 indicates to the C program that the symlink() routine is available
1433 to create symbolic links.
1435 d_syscall (d_syscall.U):
1436 This variable conditionally defines HAS_SYSCALL if syscall() is
1437 available call arbitrary system calls.
1439 d_sysconf (d_sysconf.U):
1440 This variable conditionally defines the HAS_SYSCONF symbol, which
1441 indicates to the C program that the sysconf() routine is available
1442 to determine system related limits and options.
1444 d_sysernlst (d_strerror.U):
1445 This variable conditionally defines HAS_SYS_ERRNOLIST if sys_errnolist[]
1446 is available to translate error numbers to the symbolic name.
1448 d_syserrlst (d_strerror.U):
1449 This variable conditionally defines HAS_SYS_ERRLIST if sys_errlist[] is
1450 available to translate error numbers to strings.
1452 d_system (d_system.U):
1453 This variable conditionally defines HAS_SYSTEM if system() is
1454 available to issue a shell command.
1456 d_tcgetpgrp (d_tcgtpgrp.U):
1457 This variable conditionally defines the HAS_TCGETPGRP symbol, which
1458 indicates to the C program that the tcgetpgrp() routine is available.
1459 to get foreground process group ID.
1461 d_tcsetpgrp (d_tcstpgrp.U):
1462 This variable conditionally defines the HAS_TCSETPGRP symbol, which
1463 indicates to the C program that the tcsetpgrp() routine is available
1464 to set foreground process group ID.
1466 d_telldir (d_readdir.U):
1467 This variable conditionally defines HAS_TELLDIR if telldir() is
1470 d_telldirproto (d_telldirproto.U):
1471 This variable conditionally defines the HAS_TELLDIR_PROTO symbol,
1472 which indicates to the C program that the system provides
1473 a prototype for the telldir() function. Otherwise, it is
1474 up to the program to supply one.
1477 This variable conditionally defines the HAS_TIME symbol, which indicates
1478 that the time() routine exists. The time() routine is normaly
1479 provided on UNIX systems.
1481 d_times (d_times.U):
1482 This variable conditionally defines the HAS_TIMES symbol, which indicates
1483 that the times() routine exists. The times() routine is normaly
1484 provided on UNIX systems. You may have to include <sys/times.h>.
1486 d_truncate (d_truncate.U):
1487 This variable conditionally defines HAS_TRUNCATE if truncate() is
1488 available to truncate files.
1490 d_tzname (d_tzname.U):
1491 This variable conditionally defines HAS_TZNAME if tzname[] is
1492 available to access timezone names.
1494 d_umask (d_umask.U):
1495 This variable conditionally defines the HAS_UMASK symbol, which
1496 indicates to the C program that the umask() routine is available.
1497 to set and get the value of the file creation mask.
1499 d_uname (d_gethname.U):
1500 This variable conditionally defines the HAS_UNAME symbol, which
1501 indicates to the C program that the uname() routine may be
1502 used to derive the host name.
1504 d_union_semun (d_union_semun.U):
1505 This variable conditionally defines HAS_UNION_SEMUN if the
1506 union semun is defined by including <sys/sem.h>.
1508 d_ustat (d_ustat.U):
1509 This variable conditionally defines HAS_USTAT if ustat() is
1510 available to query file system statistics by dev_t.
1512 d_vendorbin (vendorbin.U):
1513 This variable conditionally defines PERL_VENDORBIN.
1515 d_vendorlib (vendorlib.U):
1516 This variable conditionally defines PERL_VENDORLIB.
1518 d_vfork (d_vfork.U):
1519 This variable conditionally defines the HAS_VFORK symbol, which
1520 indicates the vfork() routine is available.
1522 d_void_closedir (d_closedir.U):
1523 This variable conditionally defines VOID_CLOSEDIR if closedir()
1524 does not return a value.
1526 d_voidsig (d_voidsig.U):
1527 This variable conditionally defines VOIDSIG if this system
1528 declares "void (*signal(...))()" in signal.h. The old way was to
1529 declare it as "int (*signal(...))()".
1531 d_voidtty (i_sysioctl.U):
1532 This variable conditionally defines USE_IOCNOTTY to indicate that the
1533 ioctl() call with TIOCNOTTY should be used to void tty association.
1534 Otherwise (on USG probably), it is enough to close the standard file
1535 decriptors and do a setpgrp().
1537 d_volatile (d_volatile.U):
1538 This variable conditionally defines the HASVOLATILE symbol, which
1539 indicates to the C program that this C compiler knows about the
1540 volatile declaration.
1542 d_vprintf (d_vprintf.U):
1543 This variable conditionally defines the HAS_VPRINTF symbol, which
1544 indicates to the C program that the vprintf() routine is available
1545 to printf with a pointer to an argument list.
1547 d_wait4 (d_wait4.U):
1548 This variable conditionally defines the HAS_WAIT4 symbol, which
1549 indicates the wait4() routine is available.
1551 d_waitpid (d_waitpid.U):
1552 This variable conditionally defines HAS_WAITPID if waitpid() is
1553 available to wait for child process.
1555 d_wcstombs (d_wcstombs.U):
1556 This variable conditionally defines the HAS_WCSTOMBS symbol, which
1557 indicates to the C program that the wcstombs() routine is available
1558 to convert wide character strings to multibyte strings.
1560 d_wctomb (d_wctomb.U):
1561 This variable conditionally defines the HAS_WCTOMB symbol, which
1562 indicates to the C program that the wctomb() routine is available
1563 to convert a wide character to a multibyte.
1566 This variable conditionally defines the symbol XENIX, which alerts
1567 the C program that it runs under Xenix.
1570 This variable is used internally by Configure to determine the
1571 full pathname (if any) of the date program. After Configure runs,
1572 the value is reset to a plain "date" and is not useful.
1574 db_hashtype (i_db.U):
1575 This variable contains the type of the hash structure element
1576 in the <db.h> header file. In older versions of DB, it was
1577 int, while in newer ones it is u_int32_t.
1579 db_prefixtype (i_db.U):
1580 This variable contains the type of the prefix structure element
1581 in the <db.h> header file. In older versions of DB, it was
1582 int, while in newer ones it is size_t.
1584 defvoidused (voidflags.U):
1585 This variable contains the default value of the VOIDUSED symbol (15).
1587 direntrytype (i_dirent.U):
1588 This symbol is set to 'struct direct' or 'struct dirent' depending on
1589 whether dirent is available or not. You should use this pseudo type to
1590 portably declare your directory entries.
1593 This variable contains the extension that is to be used for the
1594 dynamically loaded modules that perl generaties.
1597 This variable contains the name of the dynamic loading file that
1598 will be used with the package.
1600 doublesize (doublesize.U):
1601 This variable contains the value of the DOUBLESIZE symbol, which
1602 indicates to the C program how many bytes there are in a double.
1604 drand01 (randfunc.U):
1605 Indicates the macro to be used to generate normalized
1606 random numbers. Uses randfunc, often divided by
1607 (double) (((unsigned long) 1 << randbits)) in order to
1608 normalize the result.
1609 In C programs, the macro 'Drand01' is mapped to drand01.
1611 dynamic_ext (Extensions.U):
1612 This variable holds a list of XS extension files we want to
1613 link dynamically into the package. It is used by Makefile.
1615 eagain (nblock_io.U):
1616 This variable bears the symbolic errno code set by read() when no
1617 data is present on the file and non-blocking I/O was enabled (otherwise,
1618 read() blocks naturally).
1621 This variable conditionally defines EBCDIC if this
1622 system uses EBCDIC encoding. Among other things, this
1623 means that the character ranges are not contiguous.
1627 This variable is used internally by Configure to determine the
1628 full pathname (if any) of the echo program. After Configure runs,
1629 the value is reset to a plain "echo" and is not useful.
1632 This variable is used internally by Configure to determine the
1633 full pathname (if any) of the egrep program. After Configure runs,
1634 the value is reset to a plain "egrep" and is not useful.
1637 This variable is defined but not used by Configure.
1638 The value is a plain '' and is not useful.
1641 When running under Eunice this variable contains a command which will
1642 convert a shell script to the proper form of text file for it to be
1643 executable by the shell. On other systems it is a no-op.
1646 This is an old synonym for _exe.
1649 This variable is used internally by Configure to determine the
1650 full pathname (if any) of the expr program. After Configure runs,
1651 the value is reset to a plain "expr" and is not useful.
1653 extensions (Extensions.U):
1654 This variable holds a list of all extension files (both XS and
1655 non-xs linked into the package. It is propagated to Config.pm
1656 and is typically used to test whether a particular extesion
1659 fflushall (fflushall.U):
1660 This symbol, if defined, tells that to flush
1661 all pending stdio output one must loop through all
1662 the stdio file handles stored in an array and fflush them.
1663 Note that if fflushNULL is defined, fflushall will not
1664 even be probed for and will be left undefined.
1666 fflushNULL (fflushall.U):
1667 This symbol, if defined, tells that fflush(NULL) does flush
1668 all pending stdio output.
1671 This variable is defined but not used by Configure.
1672 The value is a plain '' and is not useful.
1674 firstmakefile (Unix.U):
1675 This variable defines the first file searched by make. On unix,
1676 it is makefile (then Makefile). On case-insensitive systems,
1677 it might be something else. This is only used to deal with
1678 convoluted make depend tricks.
1681 This variable is defined but not used by Configure.
1682 The value is a plain '' and is not useful.
1684 fpossize (fpossize.U):
1685 This variable contains the size of a fpostype in bytes.
1687 fpostype (fpostype.U):
1688 This variable defines Fpos_t to be something like fpos_t, long,
1689 uint, or whatever type is used to declare file positions in libc.
1691 freetype (mallocsrc.U):
1692 This variable contains the return type of free(). It is usually
1693 void, but occasionally int.
1696 This variable contains the full pathname to 'ar', whether or
1697 not the user has specified 'portability'. This is only used
1701 This variable contains the full pathname to 'csh', whether or
1702 not the user has specified 'portability'. This is only used
1703 in the compiled C program, and we assume that all systems which
1704 can share this executable will have the same full pathname to
1707 full_sed (Loc_sed.U):
1708 This variable contains the full pathname to 'sed', whether or
1709 not the user has specified 'portability'. This is only used
1710 in the compiled C program, and we assume that all systems which
1711 can share this executable will have the same full pathname to
1715 If GNU cc (gcc) is used, this variable holds '1' or '2' to
1716 indicate whether the compiler is version 1 or 2. This is used in
1717 setting some of the default cflags. It is set to '' if not gcc.
1720 This variable contains the format string used for printing a Gid_t.
1722 gidsign (gidsign.U):
1723 This variable contains the signedness of a gidtype.
1724 1 for unsigned, -1 for signed.
1726 gidsize (gidsize.U):
1727 This variable contains the size of a gidtype in bytes.
1729 gidtype (gidtype.U):
1730 This variable defines Gid_t to be something like gid_t, int,
1731 ushort, or whatever type is used to declare the return type
1732 of getgid(). Typically, it is the type of group ids in the kernel.
1735 This variable holds the general path (space-separated) used to
1736 find libraries. It may contain directories that do not exist on
1737 this platform, libpth is the cleaned-up version.
1740 This variable is used internally by Configure to determine the
1741 full pathname (if any) of the grep program. After Configure runs,
1742 the value is reset to a plain "grep" and is not useful.
1745 This variable contains a command that produces the text of the
1746 /etc/group file. This is normally "cat /etc/group", but can be
1747 "ypcat group" when NIS is used.
1748 On some systems, such as os390, there may be no equivalent
1749 command, in which case this variable is unset.
1751 groupstype (groupstype.U):
1752 This variable defines Groups_t to be something like gid_t, int,
1753 ushort, or whatever type is used for the second argument to
1754 getgroups() and setgroups(). Usually, this is the same as
1755 gidtype (gid_t), but sometimes it isn't.
1758 This variable is used internally by Configure to determine the
1759 full pathname (if any) of the gzip program. After Configure runs,
1760 the value is reset to a plain "gzip" and is not useful.
1762 h_fcntl (h_fcntl.U):
1763 This is variable gets set in various places to tell i_fcntl that
1764 <fcntl.h> should be included.
1766 h_sysfile (h_sysfile.U):
1767 This is variable gets set in various places to tell i_sys_file that
1768 <sys/file.h> should be included.
1771 Gives the type of hints used for previous answers. May be one of
1772 "default", "recommended" or "previous".
1775 This variable contains a command that produces the text of the
1776 /etc/hosts file. This is normally "cat /etc/hosts", but can be
1777 "ypcat hosts" when NIS is used.
1778 On some systems, such as os390, there may be no equivalent
1779 command, in which case this variable is unset.
1782 This variable contains a flag which will tell the C compiler and loader
1783 to produce a program running with a huge memory model. If the
1784 huge model is not supported, contains the flag to produce large
1785 model programs. It is up to the Makefile to use this.
1788 This variable is the size of an I16 in bytes.
1791 This variable contains the C type used for Perl's I16.
1794 This variable is the size of an I32 in bytes.
1797 This variable contains the C type used for Perl's I32.
1800 This variable is the size of an I64 in bytes.
1803 This variable contains the C type used for Perl's I64.
1806 This variable is the size of an I8 in bytes.
1809 This variable contains the C type used for Perl's I8.
1811 i_arpainet (i_arpainet.U):
1812 This variable conditionally defines the I_ARPA_INET symbol,
1813 and indicates whether a C program should include <arpa/inet.h>.
1815 i_bsdioctl (i_sysioctl.U):
1816 This variable conditionally defines the I_SYS_BSDIOCTL symbol, which
1817 indicates to the C program that <sys/bsdioctl.h> exists and should
1821 This variable conditionally defines the I_DB symbol, and indicates
1822 whether a C program may include Berkeley's DB include file <db.h>.
1825 This variable conditionally defines the I_DBM symbol, which
1826 indicates to the C program that <dbm.h> exists and should
1829 i_dirent (i_dirent.U):
1830 This variable conditionally defines I_DIRENT, which indicates
1831 to the C program that it should include <dirent.h>.
1834 This variable conditionally defines the I_DLD symbol, which
1835 indicates to the C program that <dld.h> (GNU dynamic loading)
1836 exists and should be included.
1838 i_dlfcn (i_dlfcn.U):
1839 This variable conditionally defines the I_DLFCN symbol, which
1840 indicates to the C program that <dlfcn.h> exists and should
1843 i_fcntl (i_fcntl.U):
1844 This variable controls the value of I_FCNTL (which tells
1845 the C program to include <fcntl.h>).
1847 i_float (i_float.U):
1848 This variable conditionally defines the I_FLOAT symbol, and indicates
1849 whether a C program may include <float.h> to get symbols like DBL_MAX
1850 or DBL_MIN, i.e. machine dependent floating point values.
1853 This variable conditionally defines the I_GDBM symbol, which
1854 indicates to the C program that <gdbm.h> exists and should
1858 This variable conditionally defines the I_GRP symbol, and indicates
1859 whether a C program should include <grp.h>.
1861 i_inttypes (i_inttypes.U):
1862 This variable conditionally defines the I_INTTYPES symbol,
1863 and indicates whether a C program should include <inttypes.h>.
1865 i_limits (i_limits.U):
1866 This variable conditionally defines the I_LIMITS symbol, and indicates
1867 whether a C program may include <limits.h> to get symbols like WORD_BIT
1870 i_locale (i_locale.U):
1871 This variable conditionally defines the I_LOCALE symbol,
1872 and indicates whether a C program should include <locale.h>.
1874 i_machcthr (i_machcthr.U):
1875 This variable conditionally defines the I_MACH_CTHREADS symbol,
1876 and indicates whether a C program should include <mach/cthreads.h>.
1878 i_malloc (i_malloc.U):
1879 This variable conditionally defines the I_MALLOC symbol, and indicates
1880 whether a C program should include <malloc.h>.
1883 This variable conditionally defines the I_MATH symbol, and indicates
1884 whether a C program may include <math.h>.
1886 i_memory (i_memory.U):
1887 This variable conditionally defines the I_MEMORY symbol, and indicates
1888 whether a C program should include <memory.h>.
1890 i_mntent (i_mntent.U):
1891 This variable conditionally defines the I_MNTENT symbol, and indicates
1892 whether a C program should include <mntent.h>.
1895 This variable conditionally defines the I_NDBM symbol, which
1896 indicates to the C program that <ndbm.h> exists and should
1899 i_netdb (i_netdb.U):
1900 This variable conditionally defines the I_NETDB symbol, and indicates
1901 whether a C program should include <netdb.h>.
1903 i_neterrno (i_neterrno.U):
1904 This variable conditionally defines the I_NET_ERRNO symbol, which
1905 indicates to the C program that <net/errno.h> exists and should
1908 i_netinettcp (i_netinettcp.U):
1909 This variable conditionally defines the I_NETINET_TCP symbol,
1910 and indicates whether a C program should include <netinet/tcp.h>.
1913 This variable conditionally defines I_NETINET_IN, which indicates
1914 to the C program that it should include <netinet/in.h>. Otherwise,
1915 you may try <sys/in.h>.
1918 This variable conditionally defines the I_POLL symbol, and indicates
1919 whether a C program should include <poll.h>.
1921 i_pthread (i_pthread.U):
1922 This variable conditionally defines the I_PTHREAD symbol,
1923 and indicates whether a C program should include <pthread.h>.
1926 This variable conditionally defines I_PWD, which indicates
1927 to the C program that it should include <pwd.h>.
1929 i_rpcsvcdbm (i_dbm.U):
1930 This variable conditionally defines the I_RPCSVC_DBM symbol, which
1931 indicates to the C program that <rpcsvc/dbm.h> exists and should
1932 be included. Some System V systems might need this instead of <dbm.h>.
1935 This variable conditionally defines the I_SFIO symbol,
1936 and indicates whether a C program should include <sfio.h>.
1938 i_sgtty (i_termio.U):
1939 This variable conditionally defines the I_SGTTY symbol, which
1940 indicates to the C program that it should include <sgtty.h> rather
1943 i_shadow (i_shadow.U):
1944 This variable conditionally defines the I_SHADOW symbol, and indicates
1945 whether a C program should include <shadow.h>.
1947 i_socks (i_socks.U):
1948 This variable conditionally defines the I_SOCKS symbol, and indicates
1949 whether a C program should include <socks.h>.
1951 i_stdarg (i_varhdr.U):
1952 This variable conditionally defines the I_STDARG symbol, which
1953 indicates to the C program that <stdarg.h> exists and should
1956 i_stddef (i_stddef.U):
1957 This variable conditionally defines the I_STDDEF symbol, which
1958 indicates to the C program that <stddef.h> exists and should
1961 i_stdlib (i_stdlib.U):
1962 This variable conditionally defines the I_STDLIB symbol, which
1963 indicates to the C program that <stdlib.h> exists and should
1966 i_string (i_string.U):
1967 This variable conditionally defines the I_STRING symbol, which
1968 indicates that <string.h> should be included rather than <strings.h>.
1970 i_sysaccess (i_sysaccess.U):
1971 This variable conditionally defines the I_SYS_ACCESS symbol,
1972 and indicates whether a C program should include <sys/access.h>.
1974 i_sysdir (i_sysdir.U):
1975 This variable conditionally defines the I_SYS_DIR symbol, and indicates
1976 whether a C program should include <sys/dir.h>.
1978 i_sysfile (i_sysfile.U):
1979 This variable conditionally defines the I_SYS_FILE symbol, and indicates
1980 whether a C program should include <sys/file.h> to get R_OK and friends.
1982 i_sysfilio (i_sysioctl.U):
1983 This variable conditionally defines the I_SYS_FILIO symbol, which
1984 indicates to the C program that <sys/filio.h> exists and should
1985 be included in preference to <sys/ioctl.h>.
1988 This variable conditionally defines I_SYS_IN, which indicates
1989 to the C program that it should include <sys/in.h> instead of
1992 i_sysioctl (i_sysioctl.U):
1993 This variable conditionally defines the I_SYS_IOCTL symbol, which
1994 indicates to the C program that <sys/ioctl.h> exists and should
1997 i_sysmount (i_sysmount.U):
1998 This variable conditionally defines the I_SYSMOUNT symbol,
1999 and indicates whether a C program should include <sys/mount.h>.
2001 i_sysndir (i_sysndir.U):
2002 This variable conditionally defines the I_SYS_NDIR symbol, and indicates
2003 whether a C program should include <sys/ndir.h>.
2005 i_sysparam (i_sysparam.U):
2006 This variable conditionally defines the I_SYS_PARAM symbol, and indicates
2007 whether a C program should include <sys/param.h>.
2009 i_sysresrc (i_sysresrc.U):
2010 This variable conditionally defines the I_SYS_RESOURCE symbol,
2011 and indicates whether a C program should include <sys/resource.h>.
2013 i_syssecrt (i_syssecrt.U):
2014 This variable conditionally defines the I_SYS_SECURITY symbol,
2015 and indicates whether a C program should include <sys/security.h>.
2017 i_sysselct (i_sysselct.U):
2018 This variable conditionally defines I_SYS_SELECT, which indicates
2019 to the C program that it should include <sys/select.h> in order to
2020 get the definition of struct timeval.
2022 i_syssockio (i_sysioctl.U):
2023 This variable conditionally defines I_SYS_SOCKIO to indicate to the
2024 C program that socket ioctl codes may be found in <sys/sockio.h>
2025 instead of <sys/ioctl.h>.
2027 i_sysstat (i_sysstat.U):
2028 This variable conditionally defines the I_SYS_STAT symbol,
2029 and indicates whether a C program should include <sys/stat.h>.
2031 i_sysstatfs (i_sysstatfs.U):
2032 This variable conditionally defines the I_SYSSTATFS symbol,
2033 and indicates whether a C program should include <sys/statfs.h>.
2035 i_sysstatvfs (i_sysstatvfs.U):
2036 This variable conditionally defines the I_SYSSTATVFS symbol,
2037 and indicates whether a C program should include <sys/statvfs.h>.
2039 i_systime (i_time.U):
2040 This variable conditionally defines I_SYS_TIME, which indicates
2041 to the C program that it should include <sys/time.h>.
2043 i_systimek (i_time.U):
2044 This variable conditionally defines I_SYS_TIME_KERNEL, which
2045 indicates to the C program that it should include <sys/time.h>
2046 with KERNEL defined.
2048 i_systimes (i_systimes.U):
2049 This variable conditionally defines the I_SYS_TIMES symbol, and indicates
2050 whether a C program should include <sys/times.h>.
2052 i_systypes (i_systypes.U):
2053 This variable conditionally defines the I_SYS_TYPES symbol,
2054 and indicates whether a C program should include <sys/types.h>.
2056 i_sysuio (i_sysuio.U):
2057 This variable conditionally defines the I_SYSUIO symbol, and indicates
2058 whether a C program should include <sys/uio.h>.
2060 i_sysun (i_sysun.U):
2061 This variable conditionally defines I_SYS_UN, which indicates
2062 to the C program that it should include <sys/un.h> to get UNIX
2063 domain socket definitions.
2065 i_sysvfs (i_sysvfs.U):
2066 This variable conditionally defines the I_SYSVFS symbol,
2067 and indicates whether a C program should include <sys/vfs.h>.
2069 i_syswait (i_syswait.U):
2070 This variable conditionally defines I_SYS_WAIT, which indicates
2071 to the C program that it should include <sys/wait.h>.
2073 i_termio (i_termio.U):
2074 This variable conditionally defines the I_TERMIO symbol, which
2075 indicates to the C program that it should include <termio.h> rather
2078 i_termios (i_termio.U):
2079 This variable conditionally defines the I_TERMIOS symbol, which
2080 indicates to the C program that the POSIX <termios.h> file is
2084 This variable conditionally defines I_TIME, which indicates
2085 to the C program that it should include <time.h>.
2087 i_unistd (i_unistd.U):
2088 This variable conditionally defines the I_UNISTD symbol, and indicates
2089 whether a C program should include <unistd.h>.
2091 i_ustat (i_ustat.U):
2092 This variable conditionally defines the I_USTAT symbol, and indicates
2093 whether a C program should include <ustat.h>.
2095 i_utime (i_utime.U):
2096 This variable conditionally defines the I_UTIME symbol, and indicates
2097 whether a C program should include <utime.h>.
2099 i_values (i_values.U):
2100 This variable conditionally defines the I_VALUES symbol, and indicates
2101 whether a C program may include <values.h> to get symbols like MAXLONG
2104 i_varargs (i_varhdr.U):
2105 This variable conditionally defines I_VARARGS, which indicates
2106 to the C program that it should include <varargs.h>.
2108 i_varhdr (i_varhdr.U):
2109 Contains the name of the header to be included to get va_dcl definition.
2110 Typically one of varargs.h or stdarg.h.
2112 i_vfork (i_vfork.U):
2113 This variable conditionally defines the I_VFORK symbol, and indicates
2114 whether a C program should include vfork.h.
2116 ignore_versioned_solibs (libs.U):
2117 This variable should be non-empty if non-versioned shared
2118 libraries (libfoo.so.x.y) are to be ignored (because they
2119 cannot be linked against).
2121 inc_version_list (inc_version_list.U):
2122 This variable specifies the list of subdirectories in over
2123 which perl.c:incpush() and lib/lib.pm will automatically
2124 search when adding directories to @INC. This is only useful
2125 if you have a perl library directory tree structured like the
2126 default one. See INSTALL for how this works. The versioned
2127 site_perl directory was introduced in 5.005, so that is the
2128 lowest possible value.
2131 This variable must preceed the normal include path to get hte
2132 right one, as in "$incpath/usr/include" or "$incpath/usr/lib".
2133 Value can be "" or "/bsd43" on mips.
2136 This variable is defined but not used by Configure.
2137 The value is a plain '' and is not useful.
2139 installarchlib (archlib.U):
2140 This variable is really the same as archlibexp but may differ on
2141 those systems using AFS. For extra portability, only this variable
2142 should be used in makefiles.
2145 This variable is the same as binexp unless AFS is running in which case
2146 the user is explicitely prompted for it. This variable should always
2147 be used in your makefiles for maximum portability.
2149 installman1dir (man1dir.U):
2150 This variable is really the same as man1direxp, unless you are using
2151 AFS in which case it points to the read/write location whereas
2152 man1direxp only points to the read-only access location. For extra
2153 portability, you should only use this variable within your makefiles.
2155 installman3dir (man3dir.U):
2156 This variable is really the same as man3direxp, unless you are using
2157 AFS in which case it points to the read/write location whereas
2158 man3direxp only points to the read-only access location. For extra
2159 portability, you should only use this variable within your makefiles.
2161 installprefix (installprefix.U):
2162 This variable holds the name of the directory below which
2163 "make install" will install the package. For most users, this
2164 is the same as prefix. However, it is useful for
2165 installing the software into a different (usually temporary)
2166 location after which it can be bundled up and moved somehow
2167 to the final location specified by prefix.
2169 installprefixexp (installprefix.U):
2170 This variable holds the full absolute path of installprefix
2171 with all ~-expansion done.
2173 installprivlib (privlib.U):
2174 This variable is really the same as privlibexp but may differ on
2175 those systems using AFS. For extra portability, only this variable
2176 should be used in makefiles.
2178 installscript (scriptdir.U):
2179 This variable is usually the same as scriptdirexp, unless you are on
2180 a system running AFS, in which case they may differ slightly. You
2181 should always use this variable within your makefiles for portability.
2183 installsitearch (sitearch.U):
2184 This variable is really the same as sitearchexp but may differ on
2185 those systems using AFS. For extra portability, only this variable
2186 should be used in makefiles.
2188 installsitebin (sitebin.U):
2189 This variable is usually the same as sitebinexp, unless you are on
2190 a system running AFS, in which case they may differ slightly. You
2191 should always use this variable within your makefiles for portability.
2193 installsitelib (sitelib.U):
2194 This variable is really the same as sitelibexp but may differ on
2195 those systems using AFS. For extra portability, only this variable
2196 should be used in makefiles.
2198 installstyle (installstyle.U):
2199 This variable describes the "style" of the perl installation.
2200 This is intended to be useful for tools that need to
2201 manipulate entire perl distributions. Perl itself doesn't use
2202 this to find its libraries -- the library directories are
2203 stored directly in Config.pm. Currently, there are only two
2204 styles: "lib" and "lib/perl5". The default library locations
2205 (e.g. privlib, sitelib) are either $prefix/lib or
2206 $prefix/lib/perl5. The former is useful if $prefix is a
2207 directory dedicated to perl (e.g. /opt/perl), while the latter
2208 is useful if $prefix is shared by many packages, e.g. if
2210 This may later be extended to include other information, so
2211 be careful with pattern-matching on the results.
2212 For compatibility with perl5.005 and earlier, the default
2213 setting is based on whether or not $prefix contains the string
2216 installusrbinperl (instubperl.U):
2217 This variable tells whether Perl should be installed also as
2218 /usr/bin/perl in addition to
2221 installvendorbin (vendorbin.U):
2222 This variable is really the same as vendorbinexp but may differ on
2223 those systems using AFS. For extra portability, only this variable
2224 should be used in makefiles.
2226 installvendorlib (vendorlib.U):
2227 This variable is really the same as vendorlibexp but may differ on
2228 those systems using AFS. For extra portability, only this variable
2229 should be used in makefiles.
2231 intsize (intsize.U):
2232 This variable contains the value of the INTSIZE symbol, which
2233 indicates to the C program how many bytes there are in an int.
2235 ivdformat (perlxvf.U):
2236 This variable contains the format string used for printing
2237 a Perl IV as a signed decimal integer.
2240 This variable is the size of an IV in bytes.
2243 This variable contains the C type used for Perl's IV.
2245 known_extensions (Extensions.U):
2246 This variable holds a list of all XS extensions included in
2250 This variable is defined but not used by Configure.
2251 The value is a plain '' and is not useful.
2254 This variable contains a flag which will tell the C compiler and loader
2255 to produce a program running with a large memory model. It is up to
2256 the Makefile to use this.
2259 This variable indicates the program to be used to link
2260 libraries for dynamic loading. On some systems, it is 'ld'.
2261 On ELF systems, it should be $cc. Mostly, we'll try to respect
2262 the hint file setting.
2264 lddlflags (dlsrc.U):
2265 This variable contains any special flags that might need to be
2266 passed to $ld to create a shared library suitable for dynamic
2267 loading. It is up to the makefile to use it. For hpux, it
2268 should be '-b'. For sunos 4.1, it is empty.
2270 ldflags (ccflags.U):
2271 This variable contains any additional C loader flags desired by
2272 the user. It is up to the Makefile to use this.
2274 ldlibpthname (libperl.U):
2275 This variable holds the name of the shared library
2276 search path, often LD_LIBRARY_PATH. To get an empty
2277 string, the hints file must set this to 'none'.
2280 This variable is used internally by Configure to determine the
2281 full pathname (if any) of the less program. After Configure runs,
2282 the value is reset to a plain "less" and is not useful.
2285 This is an old synonym for _a.
2288 This variable contains the location of the C library.
2290 libperl (libperl.U):
2291 The perl executable is obtained by linking perlmain.c with
2292 libperl, any static extensions (usually just DynaLoader),
2293 and any other libraries needed on this system. libperl
2294 is usually libperl.a, but can also be libperl.so.xxx if
2295 the user wishes to build a perl executable with a shared
2299 This variable holds the general path (space-separated) used to find
2300 libraries. It is intended to be used by other units.
2303 This variable holds the additional libraries we want to use.
2304 It is up to the Makefile to deal with it.
2306 libswanted (Myinit.U):
2307 This variable holds a list of all the libraries we want to
2308 search. The order is chosen to pick up the c library
2309 ahead of ucb or bsd libraries for SVR4.
2312 This variable is defined but not used by Configure.
2313 The value is a plain '' and is not useful.
2316 This variable is defined but not used by Configure.
2317 The value is a plain '' and is not useful.
2319 lkflags (ccflags.U):
2320 This variable contains any additional C partial linker flags desired by
2321 the user. It is up to the Makefile to use this.
2324 This variable is used internally by Configure to determine the
2325 full pathname (if any) of the ln program. After Configure runs,
2326 the value is reset to a plain "ln" and is not useful.
2329 This variable holds the name of the command to make
2330 symbolic links (if they are supported). It can be used
2331 in the Makefile. It is either 'ln -s' or 'ln'
2333 locincpth (ccflags.U):
2334 This variable contains a list of additional directories to be
2335 searched by the compiler. The appropriate '-I' directives will
2336 be added to ccflags. This is intended to simplify setting
2337 local directories from the Configure command line.
2338 It's not much, but it parallels the loclibpth stuff in libpth.U.
2340 loclibpth (libpth.U):
2341 This variable holds the paths (space-separated) used to find local
2342 libraries. It is prepended to libpth, and is intended to be easily
2343 set from the command line.
2345 longdblsize (d_longdbl.U):
2346 This variable contains the value of the LONG_DOUBLESIZE symbol, which
2347 indicates to the C program how many bytes there are in a long double,
2348 if this system supports long doubles.
2350 longlongsize (d_longlong.U):
2351 This variable contains the value of the LONGLONGSIZE symbol, which
2352 indicates to the C program how many bytes there are in a long long,
2353 if this system supports long long.
2355 longsize (intsize.U):
2356 This variable contains the value of the LONGSIZE symbol, which
2357 indicates to the C program how many bytes there are in a long.
2360 This variable is defined but not used by Configure.
2361 The value is a plain '' and is not useful.
2364 This variable is defined but not used by Configure.
2365 The value is a plain '' and is not useful.
2368 This variable is used internally by Configure to determine the
2369 full pathname (if any) of the ls program. After Configure runs,
2370 the value is reset to a plain "ls" and is not useful.
2372 lseeksize (lseektype.U):
2373 This variable defines lseektype to be something like off_t, long,
2374 or whatever type is used to declare lseek offset's type in the
2375 kernel (which also appears to be lseek's return type).
2377 lseektype (lseektype.U):
2378 This variable defines lseektype to be something like off_t, long,
2379 or whatever type is used to declare lseek offset's type in the
2380 kernel (which also appears to be lseek's return type).
2383 This variable is defined but not used by Configure.
2384 The value is a plain '' and is not useful.
2387 This variable is defined but not used by Configure.
2388 The value is a plain '' and is not useful.
2391 This variable is used internally by Configure to determine the
2392 full pathname (if any) of the make program. After Configure runs,
2393 the value is reset to a plain "make" and is not useful.
2395 make_set_make (make.U):
2396 Some versions of 'make' set the variable MAKE. Others do not.
2397 This variable contains the string to be included in Makefile.SH
2398 so that MAKE is set if needed, and not if not needed.
2399 Possible values are:
2400 make_set_make='#' # If your make program handles this for you,
2401 make_set_make="MAKE=$make" # if it doesn't.
2402 I used a comment character so that we can distinguish a
2403 'set' value (from a previous config.sh or Configure '-D' option)
2404 from an uncomputed value.
2406 mallocobj (mallocsrc.U):
2407 This variable contains the name of the malloc.o that this package
2408 generates, if that malloc.o is preferred over the system malloc.
2409 Otherwise the value is null. This variable is intended for generating
2410 Makefiles. See mallocsrc.
2412 mallocsrc (mallocsrc.U):
2413 This variable contains the name of the malloc.c that comes with
2414 the package, if that malloc.c is preferred over the system malloc.
2415 Otherwise the value is null. This variable is intended for generating
2418 malloctype (mallocsrc.U):
2419 This variable contains the kind of ptr returned by malloc and realloc.
2421 man1dir (man1dir.U):
2422 This variable contains the name of the directory in which manual
2423 source pages are to be put. It is the responsibility of the
2424 Makefile.SH to get the value of this into the proper command.
2425 You must be prepared to do the ~name expansion yourself.
2427 man1direxp (man1dir.U):
2428 This variable is the same as the man1dir variable, but is filename
2429 expanded at configuration time, for convenient use in makefiles.
2431 man1ext (man1dir.U):
2432 This variable contains the extension that the manual page should
2433 have: one of 'n', 'l', or '1'. The Makefile must supply the '.'.
2436 man3dir (man3dir.U):
2437 This variable contains the name of the directory in which manual
2438 source pages are to be put. It is the responsibility of the
2439 Makefile.SH to get the value of this into the proper command.
2440 You must be prepared to do the ~name expansion yourself.
2442 man3direxp (man3dir.U):
2443 This variable is the same as the man3dir variable, but is filename
2444 expanded at configuration time, for convenient use in makefiles.
2446 man3ext (man3dir.U):
2447 This variable contains the extension that the manual page should
2448 have: one of 'n', 'l', or '3'. The Makefile must supply the '.'.
2452 This variable is used internally by Configure to determine the
2453 full pathname (if any) of the Mcc program. After Configure runs,
2454 the value is reset to a plain "Mcc" and is not useful.
2457 This variable contains a flag which will tell the C compiler and loader
2458 to produce a program running with a medium memory model. If the
2459 medium model is not supported, contains the flag to produce large
2460 model programs. It is up to the Makefile to use this.
2462 mips_type (usrinc.U):
2463 This variable holds the environment type for the mips system.
2464 Possible values are "BSD 4.3" and "System V".
2467 This variable is used internally by Configure to determine the
2468 full pathname (if any) of the mkdir program. After Configure runs,
2469 the value is reset to a plain "mkdir" and is not useful.
2472 This variable contains the list of memory models supported by this
2473 system. Possible component values are none, split, unsplit, small,
2474 medium, large, and huge. The component values are space separated.
2476 modetype (modetype.U):
2477 This variable defines modetype to be something like mode_t,
2478 int, unsigned short, or whatever type is used to declare file
2479 modes for system calls.
2482 This variable is used internally by Configure to determine the
2483 full pathname (if any) of the more program. After Configure runs,
2484 the value is reset to a plain "more" and is not useful.
2486 multiarch (multiarch.U):
2487 This variable conditionally defines the MULTIARCH symbol
2488 which signifies the presence of multiplatform files.
2489 This is normally set by hints files.
2492 This variable is defined but not used by Configure.
2493 The value is a plain '' and is not useful.
2495 myarchname (archname.U):
2496 This variable holds the architecture name computed by Configure in
2497 a previous run. It is not intended to be perused by any user and
2498 should never be set in a hint file.
2500 mydomain (myhostname.U):
2501 This variable contains the eventual value of the MYDOMAIN symbol,
2502 which is the domain of the host the program is going to run on.
2503 The domain must be appended to myhostname to form a complete host name.
2504 The dot comes with mydomain, and need not be supplied by the program.
2506 myhostname (myhostname.U):
2507 This variable contains the eventual value of the MYHOSTNAME symbol,
2508 which is the name of the host the program is going to run on.
2509 The domain is not kept with hostname, but must be gotten from mydomain.
2510 The dot comes with mydomain, and need not be supplied by the program.
2512 myuname (Oldconfig.U):
2513 The output of 'uname -a' if available, otherwise the hostname. On Xenix,
2514 pseudo variables assignments in the output are stripped, thank you. The
2515 whole thing is then lower-cased.
2518 This variable contains the '-n' flag if that is what causes the echo
2519 command to suppress newline. Otherwise it is null. Correct usage is
2520 $echo $n "prompt for a question: $c".
2522 netdb_hlen_type (netdbtype.U):
2523 This variable holds the type used for the 2nd argument to
2524 gethostbyaddr(). Usually, this is int or size_t or unsigned.
2525 This is only useful if you have gethostbyaddr(), naturally.
2527 netdb_host_type (netdbtype.U):
2528 This variable holds the type used for the 1st argument to
2529 gethostbyaddr(). Usually, this is char * or void *, possibly
2530 with or without a const prefix.
2531 This is only useful if you have gethostbyaddr(), naturally.
2533 netdb_name_type (netdbtype.U):
2534 This variable holds the type used for the argument to
2535 gethostbyname(). Usually, this is char * or const char *.
2536 This is only useful if you have gethostbyname(), naturally.
2538 netdb_net_type (netdbtype.U):
2539 This variable holds the type used for the 1st argument to
2540 getnetbyaddr(). Usually, this is int or long.
2541 This is only useful if you have getnetbyaddr(), naturally.
2544 This variable is used internally by Configure to determine the
2545 full pathname (if any) of the nm program. After Configure runs,
2546 the value is reset to a plain "nm" and is not useful.
2549 This variable holds the options that may be necessary for nm.
2551 nm_so_opt (usenm.U):
2552 This variable holds the options that may be necessary for nm
2553 to work on a shared library but that can not be used on an
2554 archive library. Currently, this is only used by Linux, where
2555 nm --dynamic is *required* to get symbols from an ELF library which
2556 has been stripped, but nm --dynamic is *fatal* on an archive library.
2557 Maybe Linux should just always set usenm=false.
2559 nonxs_ext (Extensions.U):
2560 This variable holds a list of all non-xs extensions included
2561 in the package. All of them will be built.
2564 This variable is used internally by Configure to determine the
2565 full pathname (if any) of the nroff program. After Configure runs,
2566 the value is reset to a plain "nroff" and is not useful.
2569 This variable is the size of an NV in bytes.
2572 This variable contains the C type used for Perl's NV.
2574 o_nonblock (nblock_io.U):
2575 This variable bears the symbol value to be used during open() or fcntl()
2576 to turn on non-blocking I/O for a file descriptor. If you wish to switch
2577 between blocking and non-blocking, you may try ioctl(FIOSNBIO) instead,
2578 but that is only supported by some devices.
2581 This is an old synonym for _o.
2583 old_pthread_create_joinable (d_pthrattrj.U):
2584 This variable defines the constant to use for creating joinable
2585 (aka undetached) pthreads. Unused if pthread.h defines
2586 PTHREAD_CREATE_JOINABLE. If used, possible values are
2587 PTHREAD_CREATE_UNDETACHED and __UNDETACHED.
2589 optimize (ccflags.U):
2590 This variable contains any optimizer/debugger flag that should be used.
2591 It is up to the Makefile to use it.
2593 orderlib (orderlib.U):
2594 This variable is "true" if the components of libraries must be ordered
2595 (with `lorder $* | tsort`) before placing them in an archive. Set to
2596 "false" if ranlib or ar can generate random libraries.
2598 osname (Oldconfig.U):
2599 This variable contains the operating system name (e.g. sunos,
2600 solaris, hpux, etc.). It can be useful later on for setting
2601 defaults. Any spaces are replaced with underscores. It is set
2602 to a null string if we can't figure it out.
2604 osvers (Oldconfig.U):
2605 This variable contains the operating system version (e.g.
2606 4.1.3, 5.2, etc.). It is primarily used for helping select
2607 an appropriate hints file, but might be useful elsewhere for
2608 setting defaults. It is set to '' if we can't figure it out.
2609 We try to be flexible about how much of the version number
2610 to keep, e.g. if 4.1.1, 4.1.2, and 4.1.3 are essentially the
2611 same for this package, hints files might just be os_4.0 or
2612 os_4.1, etc., not keeping separate files for each little release.
2614 package (package.U):
2615 This variable contains the name of the package being constructed.
2616 It is primarily intended for the use of later Configure units.
2619 This variable contains the name of the preferred pager on the system.
2620 Usual values are (the full pathnames of) more, less, pg, or cat.
2623 This variable contains a command that produces the text of the
2624 /etc/passwd file. This is normally "cat /etc/passwd", but can be
2625 "ypcat passwd" when NIS is used.
2626 On some systems, such as os390, there may be no equivalent
2627 command, in which case this variable is unset.
2629 patchlevel (patchlevel.U):
2630 The patchlevel level of this package.
2631 The value of patchlevel comes from the patchlevel.h file.
2632 In a version number such as 5.6.1, this is the "6".
2633 In patchlevel.h, this is referred to as the "PERL_VERSION".
2636 This is an old synonym for p_ in Head.U, the character
2637 used to separate elements in the command shell search PATH.
2640 This variable is used internally by Configure to determine the
2641 full pathname (if any) of the perl program. After Configure runs,
2642 the value is reset to a plain "perl" and is not useful.
2644 PERL_REVISION (Oldsyms.U):
2645 In a Perl version number such as 5.6.2, this is the 5.
2646 This value is manually set in patchlevel.h
2648 PERL_SUBVERSION (Oldsyms.U):
2649 In a Perl version number such as 5.6.2, this is the 2.
2650 Values greater than 50 represent potentially unstable
2651 development subversions.
2652 This value is manually set in patchlevel.h
2654 PERL_VERSION (Oldsyms.U):
2655 In a Perl version number such as 5.6.2, this is the 6.
2656 This value is manually set in patchlevel.h
2658 perladmin (perladmin.U):
2659 Electronic mail address of the perl5 administrator.
2661 perlpath (perlpath.U):
2662 This variable contains the eventual value of the PERLPATH symbol,
2663 which contains the name of the perl interpreter to be used in
2664 shell scripts and in the "eval 'exec'" idiom.
2667 This variable is used internally by Configure to determine the
2668 full pathname (if any) of the pg program. After Configure runs,
2669 the value is reset to a plain "pg" and is not useful.
2671 phostname (myhostname.U):
2672 This variable contains the eventual value of the PHOSTNAME symbol,
2673 which is a command that can be fed to popen() to get the host name.
2674 The program should probably not presume that the domain is or isn't
2677 pidtype (pidtype.U):
2678 This variable defines PIDTYPE to be something like pid_t, int,
2679 ushort, or whatever type is used to declare process ids in the kernel.
2682 Holds the private path used by Configure to find out the libraries.
2683 Its value is prepend to libpth. This variable takes care of special
2684 machines, like the mips. Usually, it should be empty.
2687 This variable is defined but not used by Configure.
2688 The value is a plain '' and is not useful.
2691 This variable is defined but not used by Configure.
2692 The value is a plain '' and is not useful.
2695 This variable holds the name of the directory below which the
2696 user will install the package. Usually, this is /usr/local, and
2697 executables go in /usr/local/bin, library stuff in /usr/local/lib,
2698 man pages in /usr/local/man, etc. It is only used to set defaults
2699 for things in bin.U, mansrc.U, privlib.U, or scriptdir.U.
2701 prefixexp (prefix.U):
2702 This variable holds the full absolute path of the directory below
2703 which the user will install the package. Derived from prefix.
2705 privlib (privlib.U):
2706 This variable contains the eventual value of the PRIVLIB symbol,
2707 which is the name of the private library for this package. It may
2708 have a ~ on the front. It is up to the makefile to eventually create
2709 this directory while performing installation (with ~ substitution).
2711 privlibexp (privlib.U):
2712 This variable is the ~name expanded version of privlib, so that you
2713 may use it directly in Makefiles or shell scripts.
2715 prototype (prototype.U):
2716 This variable holds the eventual value of CAN_PROTOTYPE, which
2717 indicates the C compiler can handle funciton prototypes.
2719 ptrsize (ptrsize.U):
2720 This variable contains the value of the PTRSIZE symbol, which
2721 indicates to the C program how many bytes there are in a pointer.
2723 quadkind (quadtype.U):
2724 This variable, if defined, encodes the type of a quad:
2725 1 = int, 2 = long, 3 = long long, 4 = int64_t.
2727 quadtype (quadtype.U):
2728 This variable defines Quad_t to be something like long, int,
2729 long long, int64_t, or whatever type is used for 64-bit integers.
2731 randbits (randfunc.U):
2732 Indicates how many bits are produced by the function used to
2733 generate normalized random numbers.
2735 randfunc (randfunc.U):
2736 Indicates the name of the random number function to use.
2737 Values include drand48, random, and rand. In C programs,
2738 the 'Drand01' macro is defined to generate uniformly distributed
2739 random numbers over the range [0., 1.[ (see drand01 and nrand).
2741 randseedtype (randfunc.U):
2742 Indicates the type of the argument of the seedfunc.
2744 ranlib (orderlib.U):
2745 This variable is set to the pathname of the ranlib program, if it is
2746 needed to generate random libraries. Set to ":" if ar can generate
2747 random libraries or if random libraries are not supported
2749 rd_nodata (nblock_io.U):
2750 This variable holds the return code from read() when no data is
2751 present. It should be -1, but some systems return 0 when O_NDELAY is
2752 used, which is a shame because you cannot make the difference between
2753 no data and an EOF.. Sigh!
2756 This variable is used internally by Configure to determine the
2757 full pathname (if any) of the rm program. After Configure runs,
2758 the value is reset to a plain "rm" and is not useful.
2761 This variable is defined but not used by Configure.
2762 The value is a plain '' and is not useful.
2765 This variable contains 'true' or 'false' depending whether the
2766 nm extraction should be performed or not, according to the value
2767 of usenm and the flags on the Configure command line.
2769 sched_yield (d_pthread_y.U):
2770 This variable defines the way to yield the execution
2771 of the current thread.
2773 scriptdir (scriptdir.U):
2774 This variable holds the name of the directory in which the user wants
2775 to put publicly scripts for the package in question. It is either
2776 the same directory as for binaries, or a special one that can be
2777 mounted across different architectures, like /usr/share. Programs
2778 must be prepared to deal with ~name expansion.
2780 scriptdirexp (scriptdir.U):
2781 This variable is the same as scriptdir, but is filename expanded
2782 at configuration time, for programs not wanting to bother with it.
2785 This variable is used internally by Configure to determine the
2786 full pathname (if any) of the sed program. After Configure runs,
2787 the value is reset to a plain "sed" and is not useful.
2789 seedfunc (randfunc.U):
2790 Indicates the random number generating seed function.
2791 Values include srand48, srandom, and srand.
2793 selectminbits (selectminbits.U):
2794 This variable holds the minimum number of bits operated by select.
2795 That is, if you do select(n, ...), how many bits at least will be
2796 cleared in the masks if some activity is detected. Usually this
2797 is either n or 32*ceil(n/32), especially many little-endians do
2798 the latter. This is only useful if you have select(), naturally.
2800 selecttype (selecttype.U):
2801 This variable holds the type used for the 2nd, 3rd, and 4th
2802 arguments to select. Usually, this is 'fd_set *', if HAS_FD_SET
2803 is defined, and 'int *' otherwise. This is only useful if you
2804 have select(), naturally.
2807 This variable is defined but not used by Configure.
2808 The value is a plain '' and is not useful.
2811 This variable contains the full pathname of the shell used
2812 on this system to execute Bourne shell scripts. Usually, this will be
2813 /bin/sh, though it's possible that some systems will have /bin/ksh,
2814 /bin/pdksh, /bin/ash, /bin/bash, or even something such as
2816 This unit comes before Options.U, so you can't set sh with a '-D'
2817 option, though you can override this (and startsh)
2818 with '-O -Dsh=/bin/whatever -Dstartsh=whatever'
2821 This variable is defined but not used by Configure.
2822 The value is a plain '' and is not useful.
2824 sharpbang (spitshell.U):
2825 This variable contains the string #! if this system supports that
2828 shmattype (d_shmat.U):
2829 This symbol contains the type of pointer returned by shmat().
2830 It can be 'void *' or 'char *'.
2832 shortsize (intsize.U):
2833 This variable contains the value of the SHORTSIZE symbol which
2834 indicates to the C program how many bytes there are in a short.
2836 shrpenv (libperl.U):
2837 If the user builds a shared libperl.so, then we need to tell the
2838 'perl' executable where it will be able to find the installed libperl.so.
2839 One way to do this on some systems is to set the environment variable
2840 LD_RUN_PATH to the directory that will be the final location of the
2841 shared libperl.so. The makefile can use this with something like
2842 $shrpenv $(CC) -o perl perlmain.o $libperl $libs
2844 shrpenv="env LD_RUN_PATH=$archlibexp/CORE"
2847 See the main perl Makefile.SH for actual working usage.
2848 Alternatively, we might be able to use a command line option such
2849 as -R $archlibexp/CORE (Solaris, NetBSD) or -Wl,-rpath
2850 $archlibexp/CORE (Linux).
2852 shsharp (spitshell.U):
2853 This variable tells further Configure units whether your sh can
2856 sig_count (sig_name.U):
2857 This variable holds a number larger than the largest valid
2858 signal number. This is usually the same as the NSIG macro.
2860 sig_name (sig_name.U):
2861 This variable holds the signal names, space separated. The leading
2862 SIG in signal name is removed. A ZERO is prepended to the
2863 list. This is currently not used.
2865 sig_name_init (sig_name.U):
2866 This variable holds the signal names, enclosed in double quotes and
2867 separated by commas, suitable for use in the SIG_NAME definition
2868 below. A "ZERO" is prepended to the list, and the list is
2869 terminated with a plain 0. The leading SIG in signal names
2870 is removed. See sig_num.
2872 sig_num (sig_name.U):
2873 This variable holds the signal numbers, space separated. A ZERO is
2874 prepended to the list (corresponding to the fake SIGZERO), and
2875 the list is terminated with a 0. Those numbers correspond to
2876 the value of the signal listed in the same place within the
2879 sig_num_init (sig_name.U):
2880 This variable holds the signal numbers, enclosed in double quotes and
2881 separated by commas, suitable for use in the SIG_NUM definition
2882 below. A "ZERO" is prepended to the list, and the list is
2883 terminated with a plain 0.
2885 signal_t (d_voidsig.U):
2886 This variable holds the type of the signal handler (void or int).
2888 sitearch (sitearch.U):
2889 This variable contains the eventual value of the SITEARCH symbol,
2890 which is the name of the private library for this package. It may
2891 have a ~ on the front. It is up to the makefile to eventually create
2892 this directory while performing installation (with ~ substitution).
2893 The standard distribution will put nothing in this directory.
2894 After perl has been installed, users may install their own local
2895 architecture-dependent modules in this directory with
2896 MakeMaker Makefile.PL
2897 or equivalent. See INSTALL for details.
2899 sitearchexp (sitearch.U):
2900 This variable is the ~name expanded version of sitearch, so that you
2901 may use it directly in Makefiles or shell scripts.
2903 sitebin (sitebin.U):
2904 This variable holds the name of the directory in which the user wants
2905 to put add-on publicly executable files for the package in question. It
2906 is most often a local directory such as /usr/local/bin. Programs using
2907 this variable must be prepared to deal with ~name substitution.
2908 The standard distribution will put nothing in this directory.
2909 After perl has been installed, users may install their own local
2910 executables in this directory with
2911 MakeMaker Makefile.PL
2912 or equivalent. See INSTALL for details.
2914 sitebinexp (sitebin.U):
2915 This is the same as the sitebin variable, but is filename expanded at
2916 configuration time, for use in your makefiles.
2918 sitelib (sitelib.U):
2919 This variable contains the eventual value of the SITELIB symbol,
2920 which is the name of the private library for this package. It may
2921 have a ~ on the front. It is up to the makefile to eventually create
2922 this directory while performing installation (with ~ substitution).
2923 The standard distribution will put nothing in this directory.
2924 After perl has been installed, users may install their own local
2925 architecture-independent modules in this directory with
2926 MakeMaker Makefile.PL
2927 or equivalent. See INSTALL for details.
2929 sitelibexp (sitelib.U):
2930 This variable is the ~name expanded version of sitelib, so that you
2931 may use it directly in Makefiles or shell scripts.
2933 siteprefix (siteprefix.U):
2934 This variable holds the full absolute path of the directory below
2935 which the user will install add-on packages.
2936 See INSTALL for usage and examples.
2938 siteprefixexp (siteprefix.U):
2939 This variable holds the full absolute path of the directory below
2940 which the user will install add-on packages. Derived from siteprefix.
2942 sizetype (sizetype.U):
2943 This variable defines sizetype to be something like size_t,
2944 unsigned long, or whatever type is used to declare length
2945 parameters for string functions.
2948 This variable is defined but not used by Configure.
2949 The value is a plain '' and is not useful.
2952 This variable is defined but not used by Configure.
2953 The value is a plain '' and is not useful.
2956 This variable contains a flag which will tell the C compiler and loader
2957 to produce a program running with a small memory model. It is up to
2958 the Makefile to use this.
2961 This variable holds the extension used to identify shared libraries
2962 (also known as shared objects) on the system. Usually set to 'so'.
2964 sockethdr (d_socket.U):
2965 This variable has any cpp '-I' flags needed for socket support.
2967 socketlib (d_socket.U):
2968 This variable has the names of any libraries needed for socket support.
2971 This variable is used internally by Configure to determine the
2972 full pathname (if any) of the sort program. After Configure runs,
2973 the value is reset to a plain "sort" and is not useful.
2975 spackage (package.U):
2976 This variable contains the name of the package being constructed,
2977 with the first letter uppercased, i.e. suitable for starting
2980 spitshell (spitshell.U):
2981 This variable contains the command necessary to spit out a runnable
2982 shell on this system. It is either cat or a grep '-v' for # comments.
2985 This variable contains a flag which will tell the C compiler and loader
2986 to produce a program that will run in separate I and D space, for those
2987 machines that support separation of instruction and data space. It is
2988 up to the Makefile to use this.
2990 sPRId64 (quadfio.U):
2991 This variable, if defined, contains the string used by stdio to
2992 format 64-bit decimal numbers (format 'd') for output.
2994 sPRIeldbl (longdblfio.U):
2995 This variable, if defined, contains the string used by stdio to
2996 format long doubles (format 'e') for output.
2998 sPRIEldbl (longdblfio.U):
2999 This variable, if defined, contains the string used by stdio to
3000 format long doubles (format 'E') for output.
3002 sPRIfldbl (longdblfio.U):
3003 This variable, if defined, contains the string used by stdio to
3004 format long doubles (format 'f') for output.
3006 sPRIFldbl (longdblfio.U):
3007 This variable, if defined, contains the string used by stdio to
3008 format long doubles (format 'F') for output.
3010 sPRIgldbl (longdblfio.U):
3011 This variable, if defined, contains the string used by stdio to
3012 format long doubles (format 'g') for output.
3014 sPRIGldbl (longdblfio.U):
3015 This variable, if defined, contains the string used by stdio to
3016 format long doubles (format 'G') for output.
3018 sPRIi64 (quadfio.U):
3019 This variable, if defined, contains the string used by stdio to
3020 format 64-bit decimal numbers (format 'i') for output.
3022 sPRIo64 (quadfio.U):
3023 This variable, if defined, contains the string used by stdio to
3024 format 64-bit octal numbers (format 'o') for output.
3026 sPRIu64 (quadfio.U):
3027 This variable, if defined, contains the string used by stdio to
3028 format 64-bit unsigned decimal numbers (format 'u') for output.
3030 sPRIx64 (quadfio.U):
3031 This variable, if defined, contains the string used by stdio to
3032 format 64-bit hexadecimal numbers (format 'x') for output.
3034 sPRIX64 (quadfio.U):
3035 This variable, if defined, contains the string used by stdio to
3036 format 64-bit hExADECimAl numbers (format 'X') for output.
3039 This variable holds the path to the package source. It is up to
3040 the Makefile to use this variable and set VPATH accordingly to
3041 find the sources remotely.
3043 ssizetype (ssizetype.U):
3044 This variable defines ssizetype to be something like ssize_t,
3045 long or int. It is used by functions that return a count
3046 of bytes or an error condition. It must be a signed type.
3047 We will pick a type such that sizeof(SSize_t) == sizeof(Size_t).
3049 startperl (startperl.U):
3050 This variable contains the string to put on the front of a perl
3051 script to make sure (hopefully) that it runs with perl and not some
3052 shell. Of course, that leading line must be followed by the classical
3054 eval 'exec perl -S $0 ${1+"$@"}'
3055 if $running_under_some_shell;
3056 to guarantee perl startup should the shell execute the script. Note
3057 that this magic incatation is not understood by csh.
3059 startsh (startsh.U):
3060 This variable contains the string to put on the front of a shell
3061 script to make sure (hopefully) that it runs with sh and not some
3064 static_ext (Extensions.U):
3065 This variable holds a list of XS extension files we want to
3066 link statically into the package. It is used by Makefile.
3068 stdchar (stdchar.U):
3069 This variable conditionally defines STDCHAR to be the type of char
3070 used in stdio.h. It has the values "unsigned char" or "char".
3072 stdio_base (d_stdstdio.U):
3073 This variable defines how, given a FILE pointer, fp, to access the
3074 _base field (or equivalent) of stdio.h's FILE structure. This will
3075 be used to define the macro FILE_base(fp).
3077 stdio_bufsiz (d_stdstdio.U):
3078 This variable defines how, given a FILE pointer, fp, to determine
3079 the number of bytes store in the I/O buffer pointer to by the
3080 _base field (or equivalent) of stdio.h's FILE structure. This will
3081 be used to define the macro FILE_bufsiz(fp).
3083 stdio_cnt (d_stdstdio.U):
3084 This variable defines how, given a FILE pointer, fp, to access the
3085 _cnt field (or equivalent) of stdio.h's FILE structure. This will
3086 be used to define the macro FILE_cnt(fp).
3088 stdio_filbuf (d_stdstdio.U):
3089 This variable defines how, given a FILE pointer, fp, to tell
3090 stdio to refill it's internal buffers (?). This will
3091 be used to define the macro FILE_filbuf(fp).
3093 stdio_ptr (d_stdstdio.U):
3094 This variable defines how, given a FILE pointer, fp, to access the
3095 _ptr field (or equivalent) of stdio.h's FILE structure. This will
3096 be used to define the macro FILE_ptr(fp).
3098 stdio_stream_array (stdio_streams.U):
3099 This variable tells the name of the array holding the stdio streams.
3100 Usual values include _iob, __iob, and __sF.
3102 strings (i_string.U):
3103 This variable holds the full path of the string header that will be
3104 used. Typically /usr/include/string.h or /usr/include/strings.h.
3107 This variable is defined but not used by Configure.
3108 The value is a plain '' and is not useful.
3110 subversion (patchlevel.U):
3111 The subversion level of this package.
3112 The value of subversion comes from the patchlevel.h file.
3113 In a version number such as 5.6.1, this is the "1".
3114 This is unique to perl.
3117 This variable holds the place where the manual is located on this
3118 system. It is not the place where the user wants to put his manual
3119 pages. Rather it is the place where Configure may look to find manual
3120 for unix commands (section 1 of the manual usually). See mansrc.
3123 This variable is defined but not used by Configure.
3124 The value is a plain '' and is not useful.
3127 This variable is defined but not used by Configure.
3128 The value is a plain '' and is not useful.
3131 This variable is defined but not used by Configure.
3132 The value is a plain '' and is not useful.
3135 This variable is defined but not used by Configure.
3136 The value is a plain '' and is not useful.
3139 This variable is used internally by Configure to determine the
3140 full pathname (if any) of the test program. After Configure runs,
3141 the value is reset to a plain "test" and is not useful.
3143 timeincl (i_time.U):
3144 This variable holds the full path of the included time header(s).
3146 timetype (d_time.U):
3147 This variable holds the type returned by time(). It can be long,
3148 or time_t on BSD sites (in which case <sys/types.h> should be
3149 included). Anyway, the type Time_t should be used.
3152 This variable is used internally by Configure to determine the
3153 full pathname (if any) of the touch program. After Configure runs,
3154 the value is reset to a plain "touch" and is not useful.
3157 This variable is used internally by Configure to determine the
3158 full pathname (if any) of the tr program. After Configure runs,
3159 the value is reset to a plain "tr" and is not useful.
3162 This variable contains the value to be passed to the tr(1)
3163 command to transliterate a newline. Typical values are
3164 '\012' and '\n'. This is needed for EBCDIC systems where
3165 newline is not necessarily '\012'.
3168 This variable is defined but not used by Configure.
3169 The value is a plain '' and is not useful.
3172 This variable is the size of an U16 in bytes.
3175 This variable contains the C type used for Perl's U16.
3178 This variable is the size of an U32 in bytes.
3181 This variable contains the C type used for Perl's U32.
3184 This variable is the size of an U64 in bytes.
3187 This variable contains the C type used for Perl's U64.
3190 This variable is the size of an U8 in bytes.
3193 This variable contains the C type used for Perl's U8.
3196 This variable contains the format string used for printing a Uid_t.
3198 uidsign (uidsign.U):
3199 This variable contains the signedness of a uidtype.
3200 1 for unsigned, -1 for signed.
3202 uidsize (uidsize.U):
3203 This variable contains the size of a uidtype in bytes.
3205 uidtype (uidtype.U):
3206 This variable defines Uid_t to be something like uid_t, int,
3207 ushort, or whatever type is used to declare user ids in the kernel.
3210 This variable is used internally by Configure to determine the
3211 full pathname (if any) of the uname program. After Configure runs,
3212 the value is reset to a plain "uname" and is not useful.
3215 This variable is used internally by Configure to determine the
3216 full pathname (if any) of the uniq program. After Configure runs,
3217 the value is reset to a plain "uniq" and is not useful.
3219 uquadtype (quadtype.U):
3220 This variable defines Uquad_t to be something like unsigned long,
3221 unsigned int, unsigned long long, uint64_t, or whatever type is
3222 used for 64-bit integers.
3224 use5005threads (usethreads.U):
3225 This variable conditionally defines the USE_5005THREADS symbol,
3226 and indicates that Perl should be built to use the 5.005-based
3227 threading implementation.
3229 use64bits (use64bits.U):
3230 This variable conditionally defines the USE_64_BITS symbol,
3231 and indicates that 64-bit integer types should be used
3235 This variable indicates if the system supports dynamic
3236 loading of some sort. See also dlsrc and dlobj.
3238 useithreads (usethreads.U):
3239 This variable conditionally defines the USE_ITHREADS symbol,
3240 and indicates that Perl should be built to use the interpreter-based
3241 threading implementation.
3243 uselargefiles (uselfs.U):
3244 This variable conditionally defines the USE_LARGE_FILES symbol,
3245 and indicates that large file interfaces should be used when
3246 available. The use64bits symbol will also be turned on if necessary.
3248 uselongdouble (uselongdbl.U):
3249 This variable conditionally defines the USE_LONG_DOUBLE symbol,
3250 and indicates that long doubles should be used when available.
3252 uselonglong (uselonglong.U):
3253 This variable conditionally defines the USE_LONG_LONG symbol,
3254 and indicates that long longs should be used when available.
3256 usemorebits (usemorebits.U):
3257 This variable conditionally defines the USE_MORE_BITS symbol,
3258 and indicates that explicit 64-bit interfaces and long doubles
3259 should be used when available.
3261 usemultiplicity (usemultiplicity.U):
3262 This variable conditionally defines the MULTIPLICITY symbol,
3263 and indicates that Perl should be built to use multiplicity.
3265 usemymalloc (mallocsrc.U):
3266 This variable contains y if the malloc that comes with this package
3267 is desired over the system's version of malloc. People often include
3268 special versions of malloc for effiency, but such versions are often
3269 less portable. See also mallocsrc and mallocobj.
3270 If this is 'y', then -lmalloc is removed from $libs.
3273 This variable contains 'true' or 'false' depending whether the
3274 nm extraction is wanted or not.
3276 useopcode (Extensions.U):
3277 This variable holds either 'true' or 'false' to indicate
3278 whether the Opcode extension should be used. The sole
3279 use for this currently is to allow an easy mechanism
3280 for users to skip the Opcode extension from the Configure
3283 useperlio (useperlio.U):
3284 This variable conditionally defines the USE_PERLIO symbol,
3285 and indicates that the PerlIO abstraction should be
3288 useposix (Extensions.U):
3289 This variable holds either 'true' or 'false' to indicate
3290 whether the POSIX extension should be used. The sole
3291 use for this currently is to allow an easy mechanism
3292 for hints files to indicate that POSIX will not compile
3293 on a particular system.
3296 This variable is set to true when the user agrees to use sfio.
3297 It is set to false when sfio is not available or when the user
3298 explicitely requests not to use sfio. It is here primarily so
3299 that command-line settings can override the auto-detection of
3300 d_sfio without running into a "WHOA THERE".
3302 useshrplib (libperl.U):
3303 This variable is set to 'yes' if the user wishes
3304 to build a shared libperl, and 'no' otherwise.
3306 usesocks (usesocks.U):
3307 This variable conditionally defines the USE_SOCKS symbol,
3308 and indicates that Perl should be built to use SOCKS.
3310 usethreads (usethreads.U):
3311 This variable conditionally defines the USE_THREADS symbol,
3312 and indicates that Perl should be built to use threads.
3314 usevendorprefix (vendorprefix.U):
3315 This variable tells whether the vendorprefix
3316 and consequently other vendor* paths are in use.
3318 usevfork (d_vfork.U):
3319 This variable is set to true when the user accepts to use vfork.
3320 It is set to false when no vfork is available or when the user
3321 explicitely requests not to use vfork.
3324 This variable holds the path of the include files, which is
3325 usually /usr/include. It is mainly used by other Configure units.
3328 This variable is defined but not used by Configure.
3329 The value is a plain '' and is not useful.
3331 uvoformat (perlxvf.U):
3332 This variable contains the format string used for printing
3333 a Perl UV as an unsigned octal integer.
3336 This variable is the size of a UV in bytes.
3339 This variable contains the C type used for Perl's UV.
3341 uvuformat (perlxvf.U):
3342 This variable contains the format string used for printing
3343 a Perl UV as an unsigned decimal integer.
3345 uvxformat (perlxvf.U):
3346 This variable contains the format string used for printing
3347 a Perl UV as an unsigned hexadecimal integer.
3349 vendorbin (vendorbin.U):
3350 This variable contains the eventual value of the VENDORBIN symbol.
3351 It may have a ~ on the front.
3352 The standard distribution will put nothing in this directory.
3353 Vendors who distribute perl may wish to place additional
3354 binaries in this directory with
3355 MakeMaker Makefile.PL INSTALLDIRS=vendor
3356 or equivalent. See INSTALL for details.
3358 vendorbinexp (vendorbin.U):
3359 This variable is the ~name expanded version of vendorbin, so that you
3360 may use it directly in Makefiles or shell scripts.
3362 vendorlib (vendorlib.U):
3363 This variable contains the eventual value of the VENDORLIB symbol,
3364 which is the name of the private library for this package.
3365 The standard distribution will put nothing in this directory.
3366 Vendors who distribute perl may wish to place their own
3367 modules in this directory with
3368 MakeMaker Makefile.PL INSTALLDIRS=vendor
3369 or equivalent. See INSTALL for details.
3371 vendorlibexp (vendorlib.U):
3372 This variable is the ~name expanded version of vendorlib, so that you
3373 may use it directly in Makefiles or shell scripts.
3375 vendorprefix (vendorprefix.U):
3376 This variable holds the full absolute path of the directory below
3377 which the vendor will install add-on packages.
3378 See INSTALL for usage and examples.
3380 vendorprefixexp (vendorprefix.U):
3381 This variable holds the full absolute path of the directory below
3382 which the vendor will install add-on packages. Derived from vendorprefix.
3384 version (patchlevel.U):
3385 The full version number of this package, such as 5.6.1 (or 5_6_1).
3386 This combines baserev, patchlevel, and subversion to get the
3387 full version number, including any possible subversions.
3388 This is suitable for use as a directory name, and hence is
3389 filesystem dependent.
3392 This variable is defined but not used by Configure.
3393 The value is a plain '' and is not useful.
3395 voidflags (voidflags.U):
3396 This variable contains the eventual value of the VOIDFLAGS symbol,
3397 which indicates how much support of the void type is given by this
3398 compiler. See VOIDFLAGS for more info.
3401 This variable holds extra path (space-separated) used to find
3402 libraries on this platform, for example CPU-specific libraries
3403 (on multi-CPU platforms) may be listed here.
3406 This variable is defined but not used by Configure.
3407 The value is a plain '' and is not useful.
3410 This variable is used internally by Configure to determine the
3411 full pathname (if any) of the zip program. After Configure runs,
3412 the value is reset to a plain "zip" and is not useful.