2 !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
3 This file is built by metaconfig.
5 This file contains a description of all the shell variables whose value is
6 determined by the Configure script. Variables intended for use in C
7 programs (e.g. I_UNISTD) are already described in config_h.SH. [`configpm'
8 generates pod documentation for Config.pm from this file--please try to keep
9 the formatting regular.]
12 This variable is used internally by Configure to determine the
13 full pathname (if any) of the Mcc program. After Configure runs,
14 the value is reset to a plain "Mcc" and is not useful.
16 PERL_REVISION (Oldsyms.U):
17 In a Perl version number such as 5.6.2, this is the 5.
18 This value is manually set in patchlevel.h
20 PERL_SUBVERSION (Oldsyms.U):
21 In a Perl version number such as 5.6.2, this is the 2.
22 Values greater than 50 represent potentially unstable
23 development subversions.
24 This value is manually set in patchlevel.h
26 PERL_VERSION (Oldsyms.U):
27 In a Perl version number such as 5.6.2, this is the 6.
28 This value is manually set in patchlevel.h
31 This variable defines the extension used for ordinary library files.
32 For unix, it is '.a'. The '.' is included. Other possible
33 values include '.lib'.
36 This variable defines the extension used for executable files.
37 DJGPP, Cygwin and OS/2 use '.exe'. Stratus VOS uses '.pm'.
38 On operating systems which do not require a specific extension
39 for executable files, this variable is empty.
42 This variable defines the extension used for object files.
43 For unix, it is '.o'. The '.' is included. Other possible
44 values include '.obj'.
47 This variable is set to 'true' if AFS (Andrew File System) is used
48 on the system, 'false' otherwise. It is possible to override this
49 with a hint value or command line option, but you'd better know
53 This variable is by default set to '/afs'. In the unlikely case
54 this is not the correct root, it is possible to override this with
55 a hint value or command line option. This will be used in subsequent
56 tests for AFSness in the Perl configure and test process.
58 alignbytes (alignbytes.U):
59 This variable holds the number of bytes required to align a
60 double-- or a long double when applicable. Usual values are
61 2, 4 and 8. The default is eight, for safety.
63 ansi2knr (ansi2knr.U):
64 This variable is set if the user needs to run ansi2knr.
65 Currently, this is not supported, so we just abort.
67 aphostname (d_gethname.U):
68 This variable contains the command which can be used to compute the
69 host name. The command is fully qualified by its absolute path, to make
70 it safe when used by a process with super-user privileges.
72 api_revision (patchlevel.U):
73 The three variables, api_revision, api_version, and
74 api_subversion, specify the version of the oldest perl binary
75 compatible with the present perl. In a full version string
76 such as '5.6.1', api_revision is the '5'.
77 Prior to 5.5.640, the format was a floating point number,
80 perl.c:incpush() and lib/lib.pm will automatically search in
81 $sitelib/.. for older directories back to the limit specified
82 by these api_ variables. This is only useful if you have a
83 perl library directory tree structured like the default one.
84 See INSTALL for how this works. The versioned site_perl
85 directory was introduced in 5.005, so that is the lowest
86 possible value. The version list appropriate for the current
87 system is determined in inc_version_list.U.
89 XXX To do: Since compatibility can depend on compile time
90 options (such as bincompat, longlong, etc.) it should
91 (perhaps) be set by Configure, but currently it isn't.
92 Currently, we read a hard-wired value from patchlevel.h.
93 Perhaps what we ought to do is take the hard-wired value from
94 patchlevel.h but then modify it if the current Configure
95 options warrant. patchlevel.h then would use an #ifdef guard.
97 api_subversion (patchlevel.U):
98 The three variables, api_revision, api_version, and
99 api_subversion, specify the version of the oldest perl binary
100 compatible with the present perl. In a full version string
101 such as '5.6.1', api_subversion is the '1'. See api_revision for
104 api_version (patchlevel.U):
105 The three variables, api_revision, api_version, and
106 api_subversion, specify the version of the oldest perl binary
107 compatible with the present perl. In a full version string
108 such as '5.6.1', api_version is the '6'. See api_revision for
109 full details. As a special case, 5.5.0 is rendered in the
110 old-style as 5.005. (In the 5.005_0x maintenance series,
111 this was the only versioned directory in $sitelib.)
113 api_versionstring (patchlevel.U):
114 This variable combines api_revision, api_version, and
115 api_subversion in a format such as 5.6.1 (or 5_6_1) suitable
116 for use as a directory name. This is filesystem dependent.
119 This variable is used internally by Configure to determine the
120 full pathname (if any) of the ar program. After Configure runs,
121 the value is reset to a plain "ar" and is not useful.
124 This variable holds the name of the directory in which the user wants
125 to put architecture-dependent public library files for $package.
126 It is most often a local directory such as /usr/local/lib.
127 Programs using this variable must be prepared to deal
128 with filename expansion.
130 archlibexp (archlib.U):
131 This variable is the same as the archlib variable, but is
132 filename expanded at configuration time, for convenient use.
134 archname64 (use64bits.U):
135 This variable is used for the 64-bitness part of $archname.
137 archname (archname.U):
138 This variable is a short name to characterize the current
139 architecture. It is used mainly to construct the default archlib.
142 This variable defines any additional objects that must be linked
143 in with the program on this architecture. On unix, it is usually
144 empty. It is typically used to include emulations of unix calls
145 or other facilities. For perl on OS/2, for example, this would
148 asctime_r_proto (d_asctime_r.U):
149 This variable encodes the prototype of asctime_r.
150 It is zero if d_asctime_r is undef, and one of the
151 REENTRANT_PROTO_T_ABC macros of reentr.h if d_asctime_r
155 This variable is used internally by Configure to determine the
156 full pathname (if any) of the awk program. After Configure runs,
157 the value is reset to a plain "awk" and is not useful.
160 The base revision level of this package, from the .package file.
163 This variable is defined but not used by Configure.
164 The value is a plain '' and is not useful.
167 This variable holds the name of the directory in which the user wants
168 to put publicly executable images for the package in question. It
169 is most often a local directory such as /usr/local/bin. Programs using
170 this variable must be prepared to deal with ~name substitution.
173 This is the same as the bin variable, but is filename expanded at
174 configuration time, for use in your makefiles.
177 This variable is used internally by Configure to determine the
178 full pathname (if any) of the bison program. After Configure runs,
179 the value is reset to a plain "bison" and is not useful.
182 This variable is used internally by Configure to determine the
183 full pathname (if any) of the byacc program. After Configure runs,
184 the value is reset to a plain "byacc" and is not useful.
186 byteorder (byteorder.U):
187 This variable holds the byte order in a UV. In the following,
188 larger digits indicate more significance. The variable byteorder
189 is either 4321 on a big-endian machine, or 1234 on a little-endian,
190 or 87654321 on a Cray ... or 3412 with weird order !
193 This variable contains the \c string if that is what causes the echo
194 command to suppress newline. Otherwise it is null. Correct usage is
195 $echo $n "prompt for a question: $c".
197 castflags (d_castneg.U):
198 This variable contains a flag that precise difficulties the
199 compiler has casting odd floating values to unsigned long:
201 1 = couldn't cast < 0
202 2 = couldn't cast >= 0x80000000
203 4 = couldn't cast in argument expression list
206 This variable is used internally by Configure to determine the
207 full pathname (if any) of the cat program. After Configure runs,
208 the value is reset to a plain "cat" and is not useful.
211 This variable holds the name of a command to execute a C compiler which
212 can resolve multiple global references that happen to have the same
213 name. Usual values are 'cc' and 'gcc'.
214 Fervent ANSI compilers may be called 'c89'. AIX has xlc.
216 cccdlflags (dlsrc.U):
217 This variable contains any special flags that might need to be
218 passed with 'cc -c' to compile modules to be used to create a shared
219 library that will be used for dynamic loading. For hpux, this
220 should be +z. It is up to the makefile to use it.
223 This variable contains any special flags that might need to be
224 passed to cc to link with a shared library for dynamic loading.
225 It is up to the makefile to use it. For sunos 4.1, it should
229 This variable contains any additional C compiler flags desired by
230 the user. It is up to the Makefile to use this.
232 ccflags_uselargefiles (uselfs.U):
233 This variable contains the compiler flags needed by large file builds
234 and added to ccflags by hints files.
237 This can set either by hints files or by Configure. If using
238 gcc, this is gcc, and if not, usually equal to cc, unimpressive, no?
239 Some platforms, however, make good use of this by storing the
240 flavor of the C compiler being used here. For example if using
241 the Sun WorkShop suite, ccname will be 'workshop'.
243 ccsymbols (Cppsym.U):
244 The variable contains the symbols defined by the C compiler alone.
245 The symbols defined by cpp or by cc when it calls cpp are not in
246 this list, see cppsymbols and cppccsymbols.
247 The list is a space-separated list of symbol=value tokens.
249 ccversion (Checkcc.U):
250 This can set either by hints files or by Configure. If using
251 a (non-gcc) vendor cc, this variable may contain a version for
255 Login name of the person who ran the Configure script and answered the
256 questions. This is used to tag both config.sh and config_h.SH.
258 cf_email (cf_email.U):
259 Electronic mail address of the person who ran Configure. This can be
260 used by units that require the user's e-mail, like MailList.U.
263 Holds the output of the "date" command when the configuration file was
264 produced. This is used to tag both config.sh and config_h.SH.
266 charsize (charsize.U):
267 This variable contains the value of the CHARSIZE symbol, which
268 indicates to the C program how many bytes there are in a character.
271 This variable is defined but not used by Configure.
272 The value is a plain '' and is not useful.
275 This variable is used internally by Configure to determine the
276 full pathname (if any) of the chmod program. After Configure runs,
277 the value is reset to a plain "chmod" and is not useful.
280 This variable is defined but not used by Configure.
281 The value is a plain '' and is not useful.
283 clocktype (d_times.U):
284 This variable holds the type returned by times(). It can be long,
285 or clock_t on BSD sites (in which case <sys/types.h> should be
289 This variable is used internally by Configure to determine the
290 full pathname (if any) of the comm program. After Configure runs,
291 the value is reset to a plain "comm" and is not useful.
294 This variable is defined but not used by Configure.
295 The value is a plain '' and is not useful.
297 contains (contains.U):
298 This variable holds the command to do a grep with a proper return
299 status. On most sane systems it is simply "grep". On insane systems
300 it is a grep followed by a cat followed by a test. This variable
301 is primarily for the use of other Configure units.
304 This variable is used internally by Configure to determine the
305 full pathname (if any) of the cp program. After Configure runs,
306 the value is reset to a plain "cp" and is not useful.
309 This variable is defined but not used by Configure.
310 The value is a plain '' and is not useful.
313 This variable is used internally by Configure to determine the
314 full pathname (if any) of the cpp program. After Configure runs,
315 the value is reset to a plain "cpp" and is not useful.
317 cpp_stuff (cpp_stuff.U):
318 This variable contains an identification of the catenation mechanism
319 used by the C preprocessor.
321 cppccsymbols (Cppsym.U):
322 The variable contains the symbols defined by the C compiler
323 when it calls cpp. The symbols defined by the cc alone or cpp
324 alone are not in this list, see ccsymbols and cppsymbols.
325 The list is a space-separated list of symbol=value tokens.
327 cppflags (ccflags.U):
328 This variable holds the flags that will be passed to the C pre-
329 processor. It is up to the Makefile to use it.
331 cpplast (cppstdin.U):
332 This variable has the same functionality as cppminus, only it applies
333 to cpprun and not cppstdin.
335 cppminus (cppstdin.U):
336 This variable contains the second part of the string which will invoke
337 the C preprocessor on the standard input and produce to standard
338 output. This variable will have the value "-" if cppstdin needs
339 a minus to specify standard input, otherwise the value is "".
342 This variable contains the command which will invoke a C preprocessor
343 on standard input and put the output to stdout. It is guaranteed not
344 to be a wrapper and may be a null string if no preprocessor can be
345 made directly available. This preprocessor might be different from the
346 one used by the C compiler. Don't forget to append cpplast after the
347 preprocessor options.
349 cppstdin (cppstdin.U):
350 This variable contains the command which will invoke the C
351 preprocessor on standard input and put the output to stdout.
352 It is primarily used by other Configure units that ask about
353 preprocessor symbols.
355 cppsymbols (Cppsym.U):
356 The variable contains the symbols defined by the C preprocessor
357 alone. The symbols defined by cc or by cc when it calls cpp are
358 not in this list, see ccsymbols and cppccsymbols.
359 The list is a space-separated list of symbol=value tokens.
361 crypt_r_proto (d_crypt_r.U):
362 This variable encodes the prototype of crypt_r.
363 It is zero if d_crypt_r is undef, and one of the
364 REENTRANT_PROTO_T_ABC macros of reentr.h if d_crypt_r
367 cryptlib (d_crypt.U):
368 This variable holds -lcrypt or the path to a libcrypt.a archive if
369 the crypt() function is not defined in the standard C library. It is
370 up to the Makefile to use this.
373 This variable is used internally by Configure to determine the
374 full pathname (if any) of the csh program. After Configure runs,
375 the value is reset to a plain "csh" and is not useful.
377 ctermid_r_proto (d_ctermid_r.U):
378 This variable encodes the prototype of ctermid_r.
379 It is zero if d_ctermid_r is undef, and one of the
380 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ctermid_r
383 ctime_r_proto (d_ctime_r.U):
384 This variable encodes the prototype of ctime_r.
385 It is zero if d_ctime_r is undef, and one of the
386 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ctime_r
389 d_Gconvert (d_gconvert.U):
390 This variable holds what Gconvert is defined as to convert
391 floating point numbers into strings. By default, Configure
392 sets this macro to use the first of gconvert, gcvt, or sprintf
393 that pass sprintf-%g-like behaviour tests. If perl is using
394 long doubles, the macro uses the first of the following
395 functions that pass Configure's tests: qgcvt, sprintf (if
396 Configure knows how to make sprintf format long doubles--see
397 sPRIgldbl), gconvert, gcvt, and sprintf (casting to double).
398 The gconvert_preference and gconvert_ld_preference variables
399 can be used to alter Configure's preferences, for doubles and
400 long doubles, respectively. If present, they contain a
401 space-separated list of one or more of the above function
402 names in the order they should be tried.
404 d_Gconvert may be set to override Configure with a platform-
405 specific function. If this function expects a double, a
406 different value may need to be set by the uselongdouble.cbu
407 call-back unit so that long doubles can be formatted without
410 d_PRIEUldbl (longdblfio.U):
411 This variable conditionally defines the PERL_PRIfldbl symbol, which
412 indiciates that stdio has a symbol to print long doubles.
413 The 'U' in the name is to separate this from d_PRIeldbl so that even
414 case-blind systems can see the difference.
416 d_PRIFUldbl (longdblfio.U):
417 This variable conditionally defines the PERL_PRIfldbl symbol, which
418 indiciates that stdio has a symbol to print long doubles.
419 The 'U' in the name is to separate this from d_PRIfldbl so that even
420 case-blind systems can see the difference.
422 d_PRIGUldbl (longdblfio.U):
423 This variable conditionally defines the PERL_PRIfldbl symbol, which
424 indiciates that stdio has a symbol to print long doubles.
425 The 'U' in the name is to separate this from d_PRIgldbl so that even
426 case-blind systems can see the difference.
428 d_PRIXU64 (quadfio.U):
429 This variable conditionally defines the PERL_PRIXU64 symbol, which
430 indiciates that stdio has a symbol to print 64-bit hExADECimAl numbers.
431 The 'U' in the name is to separate this from d_PRIx64 so that even
432 case-blind systems can see the difference.
434 d_PRId64 (quadfio.U):
435 This variable conditionally defines the PERL_PRId64 symbol, which
436 indiciates that stdio has a symbol to print 64-bit decimal numbers.
438 d_PRIeldbl (longdblfio.U):
439 This variable conditionally defines the PERL_PRIfldbl symbol, which
440 indiciates that stdio has a symbol to print long doubles.
442 d_PRIfldbl (longdblfio.U):
443 This variable conditionally defines the PERL_PRIfldbl symbol, which
444 indiciates that stdio has a symbol to print long doubles.
446 d_PRIgldbl (longdblfio.U):
447 This variable conditionally defines the PERL_PRIfldbl symbol, which
448 indiciates that stdio has a symbol to print long doubles.
450 d_PRIi64 (quadfio.U):
451 This variable conditionally defines the PERL_PRIi64 symbol, which
452 indiciates that stdio has a symbol to print 64-bit decimal numbers.
454 d_PRIo64 (quadfio.U):
455 This variable conditionally defines the PERL_PRIo64 symbol, which
456 indiciates that stdio has a symbol to print 64-bit octal numbers.
458 d_PRIu64 (quadfio.U):
459 This variable conditionally defines the PERL_PRIu64 symbol, which
460 indiciates that stdio has a symbol to print 64-bit unsigned decimal
463 d_PRIx64 (quadfio.U):
464 This variable conditionally defines the PERL_PRIx64 symbol, which
465 indiciates that stdio has a symbol to print 64-bit hexadecimal numbers.
467 d_SCNfldbl (longdblfio.U):
468 This variable conditionally defines the PERL_PRIfldbl symbol, which
469 indiciates that stdio has a symbol to scan long doubles.
471 d__fwalk (d__fwalk.U):
472 This variable conditionally defines HAS__FWALK if _fwalk() is
473 available to apply a function to all the file handles.
475 d_access (d_access.U):
476 This variable conditionally defines HAS_ACCESS if the access() system
477 call is available to check for access permissions using real IDs.
479 d_accessx (d_accessx.U):
480 This variable conditionally defines the HAS_ACCESSX symbol, which
481 indicates to the C program that the accessx() routine is available.
484 This variable conditionally defines the HAS_ALARM symbol, which
485 indicates to the C program that the alarm() routine is available.
487 d_archlib (archlib.U):
488 This variable conditionally defines ARCHLIB to hold the pathname
489 of architecture-dependent library files for $package. If
490 $archlib is the same as $privlib, then this is set to undef.
492 d_asctime_r (d_asctime_r.U):
493 This variable conditionally defines the HAS_ASCTIME_R symbol,
494 which indicates to the C program that the asctime_r()
495 routine is available.
498 This variable conditionally defines the HAS_ATOLF symbol, which
499 indicates to the C program that the atolf() routine is available.
502 This variable conditionally defines the HAS_ATOLL symbol, which
503 indicates to the C program that the atoll() routine is available.
505 d_attribut (d_attribut.U):
506 This variable conditionally defines HASATTRIBUTE, which
507 indicates the C compiler can check for function attributes,
508 such as printf formats.
511 This variable conditionally defines the HAS_BCMP symbol if
512 the bcmp() routine is available to compare strings.
515 This variable conditionally defines the HAS_BCOPY symbol if
516 the bcopy() routine is available to copy strings.
519 This symbol conditionally defines the symbol BSD when running on a
522 d_bsdgetpgrp (d_getpgrp.U):
523 This variable conditionally defines USE_BSD_GETPGRP if
524 getpgrp needs one arguments whereas USG one needs none.
526 d_bsdsetpgrp (d_setpgrp.U):
527 This variable conditionally defines USE_BSD_SETPGRP if
528 setpgrp needs two arguments whereas USG one needs none.
529 See also d_setpgid for a POSIX interface.
532 This variable conditionally defines the HAS_BZERO symbol if
533 the bzero() routine is available to set memory to 0.
535 d_casti32 (d_casti32.U):
536 This variable conditionally defines CASTI32, which indicates
537 whether the C compiler can cast large floats to 32-bit ints.
539 d_castneg (d_castneg.U):
540 This variable conditionally defines CASTNEG, which indicates
541 wether the C compiler can cast negative float to unsigned.
543 d_charvspr (d_vprintf.U):
544 This variable conditionally defines CHARVSPRINTF if this system
545 has vsprintf returning type (char*). The trend seems to be to
546 declare it as "int vsprintf()".
549 This variable conditionally defines the HAS_CHOWN symbol, which
550 indicates to the C program that the chown() routine is available.
552 d_chroot (d_chroot.U):
553 This variable conditionally defines the HAS_CHROOT symbol, which
554 indicates to the C program that the chroot() routine is available.
556 d_chsize (d_chsize.U):
557 This variable conditionally defines the CHSIZE symbol, which
558 indicates to the C program that the chsize() routine is available
559 to truncate files. You might need a -lx to get this routine.
562 This variable conditionally defines the HAS_CLASS symbol, which
563 indicates to the C program that the class() routine is available.
565 d_closedir (d_closedir.U):
566 This variable conditionally defines HAS_CLOSEDIR if closedir() is
569 d_cmsghdr_s (d_cmsghdr_s.U):
570 This variable conditionally defines the HAS_STRUCT_CMSGHDR symbol,
571 which indicates that the struct cmsghdr is supported.
574 This variable conditionally defines the HASCONST symbol, which
575 indicates to the C program that this C compiler knows about the
579 This variable conditionally defines the CRYPT symbol, which
580 indicates to the C program that the crypt() routine is available
581 to encrypt passwords and the like.
583 d_crypt_r (d_crypt_r.U):
584 This variable conditionally defines the HAS_CRYPT_R symbol,
585 which indicates to the C program that the crypt_r()
586 routine is available.
589 This variable conditionally defines the CSH symbol, which
590 indicates to the C program that the C-shell exists.
592 d_ctermid_r (d_ctermid_r.U):
593 This variable conditionally defines the HAS_CTERMID_R symbol,
594 which indicates to the C program that the ctermid_r()
595 routine is available.
597 d_ctime_r (d_ctime_r.U):
598 This variable conditionally defines the HAS_CTIME_R symbol,
599 which indicates to the C program that the ctime_r()
600 routine is available.
602 d_cuserid (d_cuserid.U):
603 This variable conditionally defines the HAS_CUSERID symbol, which
604 indicates to the C program that the cuserid() routine is available
605 to get character login names.
607 d_dbl_dig (d_dbl_dig.U):
608 This variable conditionally defines d_dbl_dig if this system's
609 header files provide DBL_DIG, which is the number of significant
610 digits in a double precision number.
612 d_dbminitproto (d_dbminitproto.U):
613 This variable conditionally defines the HAS_DBMINIT_PROTO symbol,
614 which indicates to the C program that the system provides
615 a prototype for the dbminit() function. Otherwise, it is
616 up to the program to supply one.
618 d_difftime (d_difftime.U):
619 This variable conditionally defines the HAS_DIFFTIME symbol, which
620 indicates to the C program that the difftime() routine is available.
623 This variable conditionally defines the HAS_DIRFD constant,
624 which indicates to the C program that dirfd() is available
625 to return the file descriptor of a directory stream.
627 d_dirnamlen (i_dirent.U):
628 This variable conditionally defines DIRNAMLEN, which indicates
629 to the C program that the length of directory entry names is
630 provided by a d_namelen field.
632 d_dlerror (d_dlerror.U):
633 This variable conditionally defines the HAS_DLERROR symbol, which
634 indicates to the C program that the dlerror() routine is available.
636 d_dlopen (d_dlopen.U):
637 This variable conditionally defines the HAS_DLOPEN symbol, which
638 indicates to the C program that the dlopen() routine is available.
640 d_dlsymun (d_dlsymun.U):
641 This variable conditionally defines DLSYM_NEEDS_UNDERSCORE, which
642 indicates that we need to prepend an underscore to the symbol
643 name before calling dlsym().
645 d_dosuid (d_dosuid.U):
646 This variable conditionally defines the symbol DOSUID, which
647 tells the C program that it should insert setuid emulation code
648 on hosts which have setuid #! scripts disabled.
650 d_drand48_r (d_drand48_r.U):
651 This variable conditionally defines the HAS_DRAND48_R symbol,
652 which indicates to the C program that the drand48_r()
653 routine is available.
655 d_drand48proto (d_drand48proto.U):
656 This variable conditionally defines the HAS_DRAND48_PROTO symbol,
657 which indicates to the C program that the system provides
658 a prototype for the drand48() function. Otherwise, it is
659 up to the program to supply one.
662 This variable conditionally defines HAS_DUP2 if dup2() is
663 available to duplicate file descriptors.
665 d_eaccess (d_eaccess.U):
666 This variable conditionally defines the HAS_EACCESS symbol, which
667 indicates to the C program that the eaccess() routine is available.
669 d_endgrent (d_endgrent.U):
670 This variable conditionally defines the HAS_ENDGRENT symbol, which
671 indicates to the C program that the endgrent() routine is available
672 for sequential access of the group database.
674 d_endgrent_r (d_endgrent_r.U):
675 This variable conditionally defines the HAS_ENDGRENT_R symbol,
676 which indicates to the C program that the endgrent_r()
677 routine is available.
679 d_endhent (d_endhent.U):
680 This variable conditionally defines HAS_ENDHOSTENT if endhostent() is
681 available to close whatever was being used for host queries.
683 d_endhostent_r (d_endhostent_r.U):
684 This variable conditionally defines the HAS_ENDHOSTENT_R symbol,
685 which indicates to the C program that the endhostent_r()
686 routine is available.
688 d_endnent (d_endnent.U):
689 This variable conditionally defines HAS_ENDNETENT if endnetent() is
690 available to close whatever was being used for network queries.
692 d_endnetent_r (d_endnetent_r.U):
693 This variable conditionally defines the HAS_ENDNETENT_R symbol,
694 which indicates to the C program that the endnetent_r()
695 routine is available.
697 d_endpent (d_endpent.U):
698 This variable conditionally defines HAS_ENDPROTOENT if endprotoent() is
699 available to close whatever was being used for protocol queries.
701 d_endprotoent_r (d_endprotoent_r.U):
702 This variable conditionally defines the HAS_ENDPROTOENT_R symbol,
703 which indicates to the C program that the endprotoent_r()
704 routine is available.
706 d_endpwent (d_endpwent.U):
707 This variable conditionally defines the HAS_ENDPWENT symbol, which
708 indicates to the C program that the endpwent() routine is available
709 for sequential access of the passwd database.
711 d_endpwent_r (d_endpwent_r.U):
712 This variable conditionally defines the HAS_ENDPWENT_R symbol,
713 which indicates to the C program that the endpwent_r()
714 routine is available.
716 d_endsent (d_endsent.U):
717 This variable conditionally defines HAS_ENDSERVENT if endservent() is
718 available to close whatever was being used for service queries.
720 d_endservent_r (d_endservent_r.U):
721 This variable conditionally defines the HAS_ENDSERVENT_R symbol,
722 which indicates to the C program that the endservent_r()
723 routine is available.
725 d_eofnblk (nblock_io.U):
726 This variable conditionally defines EOF_NONBLOCK if EOF can be seen
727 when reading from a non-blocking I/O source.
730 This variable conditionally defines the symbols EUNICE and VAX, which
731 alerts the C program that it must deal with ideosyncracies of VMS.
733 d_fchdir (d_fchdir.U):
734 This variable conditionally defines the HAS_FCHDIR symbol, which
735 indicates to the C program that the fchdir() routine is available.
737 d_fchmod (d_fchmod.U):
738 This variable conditionally defines the HAS_FCHMOD symbol, which
739 indicates to the C program that the fchmod() routine is available
740 to change mode of opened files.
742 d_fchown (d_fchown.U):
743 This variable conditionally defines the HAS_FCHOWN symbol, which
744 indicates to the C program that the fchown() routine is available
745 to change ownership of opened files.
748 This variable conditionally defines the HAS_FCNTL symbol, and indicates
749 whether the fcntl() function exists
751 d_fcntl_can_lock (d_fcntl_can_lock.U):
752 This variable conditionally defines the FCNTL_CAN_LOCK symbol
753 and indicates whether file locking with fcntl() works.
755 d_fd_macros (d_fd_set.U):
756 This variable contains the eventual value of the HAS_FD_MACROS symbol,
757 which indicates if your C compiler knows about the macros which
758 manipulate an fd_set.
760 d_fd_set (d_fd_set.U):
761 This variable contains the eventual value of the HAS_FD_SET symbol,
762 which indicates if your C compiler knows about the fd_set typedef.
764 d_fds_bits (d_fd_set.U):
765 This variable contains the eventual value of the HAS_FDS_BITS symbol,
766 which indicates if your fd_set typedef contains the fds_bits member.
767 If you have an fd_set typedef, but the dweebs who installed it did
768 a half-fast job and neglected to provide the macros to manipulate
769 an fd_set, HAS_FDS_BITS will let us know how to fix the gaffe.
771 d_fgetpos (d_fgetpos.U):
772 This variable conditionally defines HAS_FGETPOS if fgetpos() is
773 available to get the file position indicator.
775 d_finite (d_finite.U):
776 This variable conditionally defines the HAS_FINITE symbol, which
777 indicates to the C program that the finite() routine is available.
779 d_finitel (d_finitel.U):
780 This variable conditionally defines the HAS_FINITEL symbol, which
781 indicates to the C program that the finitel() routine is available.
783 d_flexfnam (d_flexfnam.U):
784 This variable conditionally defines the FLEXFILENAMES symbol, which
785 indicates that the system supports filenames longer than 14 characters.
788 This variable conditionally defines HAS_FLOCK if flock() is
789 available to do file locking.
791 d_flockproto (d_flockproto.U):
792 This variable conditionally defines the HAS_FLOCK_PROTO symbol,
793 which indicates to the C program that the system provides
794 a prototype for the flock() function. Otherwise, it is
795 up to the program to supply one.
798 This variable conditionally defines the HAS_FORK symbol, which
799 indicates to the C program that the fork() routine is available.
801 d_fp_class (d_fp_class.U):
802 This variable conditionally defines the HAS_FP_CLASS symbol, which
803 indicates to the C program that the fp_class() routine is available.
805 d_fpathconf (d_pathconf.U):
806 This variable conditionally defines the HAS_FPATHCONF symbol, which
807 indicates to the C program that the pathconf() routine is available
808 to determine file-system related limits and options associated
809 with a given open file descriptor.
811 d_fpclass (d_fpclass.U):
812 This variable conditionally defines the HAS_FPCLASS symbol, which
813 indicates to the C program that the fpclass() routine is available.
815 d_fpclassify (d_fpclassify.U):
816 This variable conditionally defines the HAS_FPCLASSIFY symbol, which
817 indicates to the C program that the fpclassify() routine is available.
819 d_fpclassl (d_fpclassl.U):
820 This variable conditionally defines the HAS_FPCLASSL symbol, which
821 indicates to the C program that the fpclassl() routine is available.
823 d_fpos64_t (d_fpos64_t.U):
824 This symbol will be defined if the C compiler supports fpos64_t.
826 d_frexpl (d_frexpl.U):
827 This variable conditionally defines the HAS_FREXPL symbol, which
828 indicates to the C program that the frexpl() routine is available.
830 d_fs_data_s (d_fs_data_s.U):
831 This variable conditionally defines the HAS_STRUCT_FS_DATA symbol,
832 which indicates that the struct fs_data is supported.
834 d_fseeko (d_fseeko.U):
835 This variable conditionally defines the HAS_FSEEKO symbol, which
836 indicates to the C program that the fseeko() routine is available.
838 d_fsetpos (d_fsetpos.U):
839 This variable conditionally defines HAS_FSETPOS if fsetpos() is
840 available to set the file position indicator.
842 d_fstatfs (d_fstatfs.U):
843 This variable conditionally defines the HAS_FSTATFS symbol, which
844 indicates to the C program that the fstatfs() routine is available.
846 d_fstatvfs (d_statvfs.U):
847 This variable conditionally defines the HAS_FSTATVFS symbol, which
848 indicates to the C program that the fstatvfs() routine is available.
851 This variable conditionally defines the HAS_FSYNC symbol, which
852 indicates to the C program that the fsync() routine is available.
854 d_ftello (d_ftello.U):
855 This variable conditionally defines the HAS_FTELLO symbol, which
856 indicates to the C program that the ftello() routine is available.
859 This variable conditionally defines the HAS_FTIME symbol, which indicates
860 that the ftime() routine exists. The ftime() routine is basically
861 a sub-second accuracy clock.
863 d_getcwd (d_getcwd.U):
864 This variable conditionally defines the HAS_GETCWD symbol, which
865 indicates to the C program that the getcwd() routine is available
866 to get the current working directory.
868 d_getespwnam (d_getespwnam.U):
869 This variable conditionally defines HAS_GETESPWNAM if getespwnam() is
870 available to retrieve enchanced (shadow) password entries by name.
872 d_getfsstat (d_getfsstat.U):
873 This variable conditionally defines the HAS_GETFSSTAT symbol, which
874 indicates to the C program that the getfsstat() routine is available.
876 d_getgrent (d_getgrent.U):
877 This variable conditionally defines the HAS_GETGRENT symbol, which
878 indicates to the C program that the getgrent() routine is available
879 for sequential access of the group database.
881 d_getgrent_r (d_getgrent_r.U):
882 This variable conditionally defines the HAS_GETGRENT_R symbol,
883 which indicates to the C program that the getgrent_r()
884 routine is available.
886 d_getgrgid_r (d_getgrgid_r.U):
887 This variable conditionally defines the HAS_GETGRGID_R symbol,
888 which indicates to the C program that the getgrgid_r()
889 routine is available.
891 d_getgrnam_r (d_getgrnam_r.U):
892 This variable conditionally defines the HAS_GETGRNAM_R symbol,
893 which indicates to the C program that the getgrnam_r()
894 routine is available.
896 d_getgrps (d_getgrps.U):
897 This variable conditionally defines the HAS_GETGROUPS symbol, which
898 indicates to the C program that the getgroups() routine is available
899 to get the list of process groups.
901 d_gethbyaddr (d_gethbyad.U):
902 This variable conditionally defines the HAS_GETHOSTBYADDR symbol, which
903 indicates to the C program that the gethostbyaddr() routine is available
904 to look up hosts by their IP addresses.
906 d_gethbyname (d_gethbynm.U):
907 This variable conditionally defines the HAS_GETHOSTBYNAME symbol, which
908 indicates to the C program that the gethostbyname() routine is available
909 to look up host names in some data base or other.
911 d_gethent (d_gethent.U):
912 This variable conditionally defines HAS_GETHOSTENT if gethostent() is
913 available to look up host names in some data base or another.
915 d_gethname (d_gethname.U):
916 This variable conditionally defines the HAS_GETHOSTNAME symbol, which
917 indicates to the C program that the gethostname() routine may be
918 used to derive the host name.
920 d_gethostbyaddr_r (d_gethostbyaddr_r.U):
921 This variable conditionally defines the HAS_GETHOSTBYADDR_R symbol,
922 which indicates to the C program that the gethostbyaddr_r()
923 routine is available.
925 d_gethostbyname_r (d_gethostbyname_r.U):
926 This variable conditionally defines the HAS_GETHOSTBYNAME_R symbol,
927 which indicates to the C program that the gethostbyname_r()
928 routine is available.
930 d_gethostent_r (d_gethostent_r.U):
931 This variable conditionally defines the HAS_GETHOSTENT_R symbol,
932 which indicates to the C program that the gethostent_r()
933 routine is available.
935 d_gethostprotos (d_gethostprotos.U):
936 This variable conditionally defines the HAS_GETHOST_PROTOS symbol,
937 which indicates to the C program that <netdb.h> supplies
938 prototypes for the various gethost*() functions.
939 See also netdbtype.U for probing for various netdb types.
941 d_getitimer (d_getitimer.U):
942 This variable conditionally defines the HAS_GETITIMER symbol, which
943 indicates to the C program that the getitimer() routine is available.
945 d_getlogin (d_getlogin.U):
946 This variable conditionally defines the HAS_GETLOGIN symbol, which
947 indicates to the C program that the getlogin() routine is available
948 to get the login name.
950 d_getlogin_r (d_getlogin_r.U):
951 This variable conditionally defines the HAS_GETLOGIN_R symbol,
952 which indicates to the C program that the getlogin_r()
953 routine is available.
955 d_getmnt (d_getmnt.U):
956 This variable conditionally defines the HAS_GETMNT symbol, which
957 indicates to the C program that the getmnt() routine is available
958 to retrieve one or more mount info blocks by filename.
960 d_getmntent (d_getmntent.U):
961 This variable conditionally defines the HAS_GETMNTENT symbol, which
962 indicates to the C program that the getmntent() routine is available
963 to iterate through mounted files to get their mount info.
965 d_getnbyaddr (d_getnbyad.U):
966 This variable conditionally defines the HAS_GETNETBYADDR symbol, which
967 indicates to the C program that the getnetbyaddr() routine is available
968 to look up networks by their IP addresses.
970 d_getnbyname (d_getnbynm.U):
971 This variable conditionally defines the HAS_GETNETBYNAME symbol, which
972 indicates to the C program that the getnetbyname() routine is available
973 to look up networks by their names.
975 d_getnent (d_getnent.U):
976 This variable conditionally defines HAS_GETNETENT if getnetent() is
977 available to look up network names in some data base or another.
979 d_getnetbyaddr_r (d_getnetbyaddr_r.U):
980 This variable conditionally defines the HAS_GETNETBYADDR_R symbol,
981 which indicates to the C program that the getnetbyaddr_r()
982 routine is available.
984 d_getnetbyname_r (d_getnetbyname_r.U):
985 This variable conditionally defines the HAS_GETNETBYNAME_R symbol,
986 which indicates to the C program that the getnetbyname_r()
987 routine is available.
989 d_getnetent_r (d_getnetent_r.U):
990 This variable conditionally defines the HAS_GETNETENT_R symbol,
991 which indicates to the C program that the getnetent_r()
992 routine is available.
994 d_getnetprotos (d_getnetprotos.U):
995 This variable conditionally defines the HAS_GETNET_PROTOS symbol,
996 which indicates to the C program that <netdb.h> supplies
997 prototypes for the various getnet*() functions.
998 See also netdbtype.U for probing for various netdb types.
1000 d_getpagsz (d_getpagsz.U):
1001 This variable conditionally defines HAS_GETPAGESIZE if getpagesize()
1002 is available to get the system page size.
1004 d_getpbyname (d_getprotby.U):
1005 This variable conditionally defines the HAS_GETPROTOBYNAME
1006 symbol, which indicates to the C program that the
1007 getprotobyname() routine is available to look up protocols
1010 d_getpbynumber (d_getprotby.U):
1011 This variable conditionally defines the HAS_GETPROTOBYNUMBER
1012 symbol, which indicates to the C program that the
1013 getprotobynumber() routine is available to look up protocols
1016 d_getpent (d_getpent.U):
1017 This variable conditionally defines HAS_GETPROTOENT if getprotoent() is
1018 available to look up protocols in some data base or another.
1020 d_getpgid (d_getpgid.U):
1021 This variable conditionally defines the HAS_GETPGID symbol, which
1022 indicates to the C program that the getpgid(pid) function
1023 is available to get the process group id.
1025 d_getpgrp2 (d_getpgrp2.U):
1026 This variable conditionally defines the HAS_GETPGRP2 symbol, which
1027 indicates to the C program that the getpgrp2() (as in DG/UX) routine
1028 is available to get the current process group.
1030 d_getpgrp (d_getpgrp.U):
1031 This variable conditionally defines HAS_GETPGRP if getpgrp() is
1032 available to get the current process group.
1034 d_getppid (d_getppid.U):
1035 This variable conditionally defines the HAS_GETPPID symbol, which
1036 indicates to the C program that the getppid() routine is available
1037 to get the parent process ID.
1039 d_getprior (d_getprior.U):
1040 This variable conditionally defines HAS_GETPRIORITY if getpriority()
1041 is available to get a process's priority.
1043 d_getprotobyname_r (d_getprotobyname_r.U):
1044 This variable conditionally defines the HAS_GETPROTOBYNAME_R symbol,
1045 which indicates to the C program that the getprotobyname_r()
1046 routine is available.
1048 d_getprotobynumber_r (d_getprotobynumber_r.U):
1049 This variable conditionally defines the HAS_GETPROTOBYNUMBER_R symbol,
1050 which indicates to the C program that the getprotobynumber_r()
1051 routine is available.
1053 d_getprotoent_r (d_getprotoent_r.U):
1054 This variable conditionally defines the HAS_GETPROTOENT_R symbol,
1055 which indicates to the C program that the getprotoent_r()
1056 routine is available.
1058 d_getprotoprotos (d_getprotoprotos.U):
1059 This variable conditionally defines the HAS_GETPROTO_PROTOS symbol,
1060 which indicates to the C program that <netdb.h> supplies
1061 prototypes for the various getproto*() functions.
1062 See also netdbtype.U for probing for various netdb types.
1064 d_getprpwnam (d_getprpwnam.U):
1065 This variable conditionally defines HAS_GETPRPWNAM if getprpwnam() is
1066 available to retrieve protected (shadow) password entries by name.
1068 d_getpwent (d_getpwent.U):
1069 This variable conditionally defines the HAS_GETPWENT symbol, which
1070 indicates to the C program that the getpwent() routine is available
1071 for sequential access of the passwd database.
1073 d_getpwent_r (d_getpwent_r.U):
1074 This variable conditionally defines the HAS_GETPWENT_R symbol,
1075 which indicates to the C program that the getpwent_r()
1076 routine is available.
1078 d_getpwnam_r (d_getpwnam_r.U):
1079 This variable conditionally defines the HAS_GETPWNAM_R symbol,
1080 which indicates to the C program that the getpwnam_r()
1081 routine is available.
1083 d_getpwuid_r (d_getpwuid_r.U):
1084 This variable conditionally defines the HAS_GETPWUID_R symbol,
1085 which indicates to the C program that the getpwuid_r()
1086 routine is available.
1088 d_getsbyname (d_getsrvby.U):
1089 This variable conditionally defines the HAS_GETSERVBYNAME
1090 symbol, which indicates to the C program that the
1091 getservbyname() routine is available to look up services
1094 d_getsbyport (d_getsrvby.U):
1095 This variable conditionally defines the HAS_GETSERVBYPORT
1096 symbol, which indicates to the C program that the
1097 getservbyport() routine is available to look up services
1100 d_getsent (d_getsent.U):
1101 This variable conditionally defines HAS_GETSERVENT if getservent() is
1102 available to look up network services in some data base or another.
1104 d_getservbyname_r (d_getservbyname_r.U):
1105 This variable conditionally defines the HAS_GETSERVBYNAME_R symbol,
1106 which indicates to the C program that the getservbyname_r()
1107 routine is available.
1109 d_getservbyport_r (d_getservbyport_r.U):
1110 This variable conditionally defines the HAS_GETSERVBYPORT_R symbol,
1111 which indicates to the C program that the getservbyport_r()
1112 routine is available.
1114 d_getservent_r (d_getservent_r.U):
1115 This variable conditionally defines the HAS_GETSERVENT_R symbol,
1116 which indicates to the C program that the getservent_r()
1117 routine is available.
1119 d_getservprotos (d_getservprotos.U):
1120 This variable conditionally defines the HAS_GETSERV_PROTOS symbol,
1121 which indicates to the C program that <netdb.h> supplies
1122 prototypes for the various getserv*() functions.
1123 See also netdbtype.U for probing for various netdb types.
1125 d_getspnam (d_getspnam.U):
1126 This variable conditionally defines HAS_GETSPNAM if getspnam() is
1127 available to retrieve SysV shadow password entries by name.
1129 d_getspnam_r (d_getspnam_r.U):
1130 This variable conditionally defines the HAS_GETSPNAM_R symbol,
1131 which indicates to the C program that the getspnam_r()
1132 routine is available.
1134 d_gettimeod (d_ftime.U):
1135 This variable conditionally defines the HAS_GETTIMEOFDAY symbol, which
1136 indicates that the gettimeofday() system call exists (to obtain a
1137 sub-second accuracy clock). You should probably include <sys/resource.h>.
1139 d_gmtime_r (d_gmtime_r.U):
1140 This variable conditionally defines the HAS_GMTIME_R symbol,
1141 which indicates to the C program that the gmtime_r()
1142 routine is available.
1144 d_gnulibc (d_gnulibc.U):
1145 Defined if we're dealing with the GNU C Library.
1147 d_grpasswd (i_grp.U):
1148 This variable conditionally defines GRPASSWD, which indicates
1149 that struct group in <grp.h> contains gr_passwd.
1151 d_hasmntopt (d_hasmntopt.U):
1152 This variable conditionally defines the HAS_HASMNTOPT symbol, which
1153 indicates to the C program that the hasmntopt() routine is available
1154 to query the mount options of file systems.
1156 d_htonl (d_htonl.U):
1157 This variable conditionally defines HAS_HTONL if htonl() and its
1158 friends are available to do network order byte swapping.
1160 d_index (d_strchr.U):
1161 This variable conditionally defines HAS_INDEX if index() and
1162 rindex() are available for string searching.
1164 d_inetaton (d_inetaton.U):
1165 This variable conditionally defines the HAS_INET_ATON symbol, which
1166 indicates to the C program that the inet_aton() function is available
1167 to parse IP address "dotted-quad" strings.
1169 d_int64_t (d_int64_t.U):
1170 This symbol will be defined if the C compiler supports int64_t.
1172 d_isascii (d_isascii.U):
1173 This variable conditionally defines the HAS_ISASCII constant,
1174 which indicates to the C program that isascii() is available.
1176 d_isfinite (d_isfinite.U):
1177 This variable conditionally defines the HAS_ISFINITE symbol, which
1178 indicates to the C program that the isfinite() routine is available.
1180 d_isinf (d_isinf.U):
1181 This variable conditionally defines the HAS_ISINF symbol, which
1182 indicates to the C program that the isinf() routine is available.
1184 d_isnan (d_isnan.U):
1185 This variable conditionally defines the HAS_ISNAN symbol, which
1186 indicates to the C program that the isnan() routine is available.
1188 d_isnanl (d_isnanl.U):
1189 This variable conditionally defines the HAS_ISNANL symbol, which
1190 indicates to the C program that the isnanl() routine is available.
1192 d_killpg (d_killpg.U):
1193 This variable conditionally defines the HAS_KILLPG symbol, which
1194 indicates to the C program that the killpg() routine is available
1195 to kill process groups.
1197 d_lchown (d_lchown.U):
1198 This variable conditionally defines the HAS_LCHOWN symbol, which
1199 indicates to the C program that the lchown() routine is available
1200 to operate on a symbolic link (instead of following the link).
1202 d_ldbl_dig (d_ldbl_dig.U):
1203 This variable conditionally defines d_ldbl_dig if this system's
1204 header files provide LDBL_DIG, which is the number of significant
1205 digits in a long double precision number.
1208 This variable conditionally defines HAS_LINK if link() is
1209 available to create hard links.
1211 d_localtime_r (d_localtime_r.U):
1212 This variable conditionally defines the HAS_LOCALTIME_R symbol,
1213 which indicates to the C program that the localtime_r()
1214 routine is available.
1216 d_locconv (d_locconv.U):
1217 This variable conditionally defines HAS_LOCALECONV if localeconv() is
1218 available for numeric and monetary formatting conventions.
1220 d_lockf (d_lockf.U):
1221 This variable conditionally defines HAS_LOCKF if lockf() is
1222 available to do file locking.
1224 d_longdbl (d_longdbl.U):
1225 This variable conditionally defines HAS_LONG_DOUBLE if
1226 the long double type is supported.
1228 d_longlong (d_longlong.U):
1229 This variable conditionally defines HAS_LONG_LONG if
1230 the long long type is supported.
1232 d_lseekproto (d_lseekproto.U):
1233 This variable conditionally defines the HAS_LSEEK_PROTO symbol,
1234 which indicates to the C program that the system provides
1235 a prototype for the lseek() function. Otherwise, it is
1236 up to the program to supply one.
1238 d_lstat (d_lstat.U):
1239 This variable conditionally defines HAS_LSTAT if lstat() is
1240 available to do file stats on symbolic links.
1242 d_madvise (d_madvise.U):
1243 This variable conditionally defines HAS_MADVISE if madvise() is
1244 available to map a file into memory.
1246 d_mblen (d_mblen.U):
1247 This variable conditionally defines the HAS_MBLEN symbol, which
1248 indicates to the C program that the mblen() routine is available
1249 to find the number of bytes in a multibye character.
1251 d_mbstowcs (d_mbstowcs.U):
1252 This variable conditionally defines the HAS_MBSTOWCS symbol, which
1253 indicates to the C program that the mbstowcs() routine is available
1254 to convert a multibyte string into a wide character string.
1256 d_mbtowc (d_mbtowc.U):
1257 This variable conditionally defines the HAS_MBTOWC symbol, which
1258 indicates to the C program that the mbtowc() routine is available
1259 to convert multibyte to a wide character.
1261 d_memchr (d_memchr.U):
1262 This variable conditionally defines the HAS_MEMCHR symbol, which
1263 indicates to the C program that the memchr() routine is available
1264 to locate characters within a C string.
1266 d_memcmp (d_memcmp.U):
1267 This variable conditionally defines the HAS_MEMCMP symbol, which
1268 indicates to the C program that the memcmp() routine is available
1269 to compare blocks of memory.
1271 d_memcpy (d_memcpy.U):
1272 This variable conditionally defines the HAS_MEMCPY symbol, which
1273 indicates to the C program that the memcpy() routine is available
1274 to copy blocks of memory.
1276 d_memmove (d_memmove.U):
1277 This variable conditionally defines the HAS_MEMMOVE symbol, which
1278 indicates to the C program that the memmove() routine is available
1279 to copy potentatially overlapping blocks of memory.
1281 d_memset (d_memset.U):
1282 This variable conditionally defines the HAS_MEMSET symbol, which
1283 indicates to the C program that the memset() routine is available
1284 to set blocks of memory.
1286 d_mkdir (d_mkdir.U):
1287 This variable conditionally defines the HAS_MKDIR symbol, which
1288 indicates to the C program that the mkdir() routine is available
1289 to create directories..
1291 d_mkdtemp (d_mkdtemp.U):
1292 This variable conditionally defines the HAS_MKDTEMP symbol, which
1293 indicates to the C program that the mkdtemp() routine is available
1294 to exclusively create a uniquely named temporary directory.
1296 d_mkfifo (d_mkfifo.U):
1297 This variable conditionally defines the HAS_MKFIFO symbol, which
1298 indicates to the C program that the mkfifo() routine is available.
1300 d_mkstemp (d_mkstemp.U):
1301 This variable conditionally defines the HAS_MKSTEMP symbol, which
1302 indicates to the C program that the mkstemp() routine is available
1303 to exclusively create and open a uniquely named temporary file.
1305 d_mkstemps (d_mkstemps.U):
1306 This variable conditionally defines the HAS_MKSTEMPS symbol, which
1307 indicates to the C program that the mkstemps() routine is available
1308 to exclusively create and open a uniquely named (with a suffix)
1311 d_mktime (d_mktime.U):
1312 This variable conditionally defines the HAS_MKTIME symbol, which
1313 indicates to the C program that the mktime() routine is available.
1316 This variable conditionally defines HAS_MMAP if mmap() is
1317 available to map a file into memory.
1319 d_modfl (d_modfl.U):
1320 This variable conditionally defines the HAS_MODFL symbol, which
1321 indicates to the C program that the modfl() routine is available.
1323 d_modfl_pow32_bug (d_modfl.U):
1324 This variable conditionally defines the HAS_MODFL_POW32_BUG symbol,
1325 which indicates that modfl() is broken for long doubles >= pow(2, 32).
1326 For example from 4294967303.150000 one would get 4294967302.000000
1327 and 1.150000. The bug has been seen in certain versions of glibc,
1328 release 2.2.2 is known to be okay.
1330 d_modflproto (d_modfl.U):
1331 This symbol, if defined, indicates that the system provides
1332 a prototype for the modfl() function. Otherwise, it is up
1333 to the program to supply one. C99 says it should be
1334 long double modfl(long double, long double *);
1336 d_mprotect (d_mprotect.U):
1337 This variable conditionally defines HAS_MPROTECT if mprotect() is
1338 available to modify the access protection of a memory mapped file.
1341 This variable conditionally defines the HAS_MSG symbol, which
1342 indicates that the entire msg*(2) library is present.
1344 d_msg_ctrunc (d_socket.U):
1345 This variable conditionally defines the HAS_MSG_CTRUNC symbol,
1346 which indicates that the MSG_CTRUNC is available. #ifdef is
1347 not enough because it may be an enum, glibc has been known to do this.
1349 d_msg_dontroute (d_socket.U):
1350 This variable conditionally defines the HAS_MSG_DONTROUTE symbol,
1351 which indicates that the MSG_DONTROUTE is available. #ifdef is
1352 not enough because it may be an enum, glibc has been known to do this.
1354 d_msg_oob (d_socket.U):
1355 This variable conditionally defines the HAS_MSG_OOB symbol,
1356 which indicates that the MSG_OOB is available. #ifdef is
1357 not enough because it may be an enum, glibc has been known to do this.
1359 d_msg_peek (d_socket.U):
1360 This variable conditionally defines the HAS_MSG_PEEK symbol,
1361 which indicates that the MSG_PEEK is available. #ifdef is
1362 not enough because it may be an enum, glibc has been known to do this.
1364 d_msg_proxy (d_socket.U):
1365 This variable conditionally defines the HAS_MSG_PROXY symbol,
1366 which indicates that the MSG_PROXY is available. #ifdef is
1367 not enough because it may be an enum, glibc has been known to do this.
1369 d_msgctl (d_msgctl.U):
1370 This variable conditionally defines the HAS_MSGCTL symbol, which
1371 indicates to the C program that the msgctl() routine is available.
1373 d_msgget (d_msgget.U):
1374 This variable conditionally defines the HAS_MSGGET symbol, which
1375 indicates to the C program that the msgget() routine is available.
1377 d_msghdr_s (d_msghdr_s.U):
1378 This variable conditionally defines the HAS_STRUCT_MSGHDR symbol,
1379 which indicates that the struct msghdr is supported.
1381 d_msgrcv (d_msgrcv.U):
1382 This variable conditionally defines the HAS_MSGRCV symbol, which
1383 indicates to the C program that the msgrcv() routine is available.
1385 d_msgsnd (d_msgsnd.U):
1386 This variable conditionally defines the HAS_MSGSND symbol, which
1387 indicates to the C program that the msgsnd() routine is available.
1389 d_msync (d_msync.U):
1390 This variable conditionally defines HAS_MSYNC if msync() is
1391 available to synchronize a mapped file.
1393 d_munmap (d_munmap.U):
1394 This variable conditionally defines HAS_MUNMAP if munmap() is
1395 available to unmap a region mapped by mmap().
1397 d_mymalloc (mallocsrc.U):
1398 This variable conditionally defines MYMALLOC in case other parts
1399 of the source want to take special action if MYMALLOC is used.
1400 This may include different sorts of profiling or error detection.
1403 This variable conditionally defines the HAS_NICE symbol, which
1404 indicates to the C program that the nice() routine is available.
1406 d_nl_langinfo (d_nl_langinfo.U):
1407 This variable conditionally defines the HAS_NL_LANGINFO symbol, which
1408 indicates to the C program that the nl_langinfo() routine is available.
1410 d_nv_preserves_uv (perlxv.U):
1411 This variable indicates whether a variable of type nvtype
1412 can preserve all the bits a variable of type uvtype.
1414 d_off64_t (d_off64_t.U):
1415 This symbol will be defined if the C compiler supports off64_t.
1417 d_old_pthread_create_joinable (d_pthrattrj.U):
1418 This variable conditionally defines pthread_create_joinable.
1419 undef if pthread.h defines PTHREAD_CREATE_JOINABLE.
1421 d_oldpthreads (usethreads.U):
1422 This variable conditionally defines the OLD_PTHREADS_API symbol,
1423 and indicates that Perl should be built to use the old
1424 draft POSIX threads API. This is only potentially meaningful if
1427 d_oldsock (d_socket.U):
1428 This variable conditionally defines the OLDSOCKET symbol, which
1429 indicates that the BSD socket interface is based on 4.1c and not 4.2.
1431 d_open3 (d_open3.U):
1432 This variable conditionally defines the HAS_OPEN3 manifest constant,
1433 which indicates to the C program that the 3 argument version of
1434 the open(2) function is available.
1436 d_pathconf (d_pathconf.U):
1437 This variable conditionally defines the HAS_PATHCONF symbol, which
1438 indicates to the C program that the pathconf() routine is available
1439 to determine file-system related limits and options associated
1440 with a given filename.
1442 d_pause (d_pause.U):
1443 This variable conditionally defines the HAS_PAUSE symbol, which
1444 indicates to the C program that the pause() routine is available
1445 to suspend a process until a signal is received.
1447 d_perl_otherlibdirs (otherlibdirs.U):
1448 This variable conditionally defines PERL_OTHERLIBDIRS, which
1449 contains a colon-separated set of paths for the perl binary to
1450 include in @INC. See also otherlibdirs.
1452 d_phostname (d_gethname.U):
1453 This variable conditionally defines the HAS_PHOSTNAME symbol, which
1454 contains the shell command which, when fed to popen(), may be
1455 used to derive the host name.
1458 This variable conditionally defines the HAS_PIPE symbol, which
1459 indicates to the C program that the pipe() routine is available
1460 to create an inter-process channel.
1463 This variable conditionally defines the HAS_POLL symbol, which
1464 indicates to the C program that the poll() routine is available
1465 to poll active file descriptors.
1467 d_portable (d_portable.U):
1468 This variable conditionally defines the PORTABLE symbol, which
1469 indicates to the C program that it should not assume that it is
1470 running on the machine it was compiled on.
1472 d_procselfexe (d_procselfexe.U):
1473 Defined if $procselfexe is symlink to the absolute
1474 pathname of the executing program.
1476 d_pthread_atfork (d_pthread_atfork.U):
1477 This variable conditionally defines the HAS_PTHREAD_ATFORK symbol,
1478 which indicates to the C program that the pthread_atfork()
1479 routine is available.
1481 d_pthread_yield (d_pthread_y.U):
1482 This variable conditionally defines the HAS_PTHREAD_YIELD
1483 symbol if the pthread_yield routine is available to yield
1484 the execution of the current thread.
1487 This variable conditionally defines PWAGE, which indicates
1488 that struct passwd contains pw_age.
1490 d_pwchange (i_pwd.U):
1491 This variable conditionally defines PWCHANGE, which indicates
1492 that struct passwd contains pw_change.
1494 d_pwclass (i_pwd.U):
1495 This variable conditionally defines PWCLASS, which indicates
1496 that struct passwd contains pw_class.
1498 d_pwcomment (i_pwd.U):
1499 This variable conditionally defines PWCOMMENT, which indicates
1500 that struct passwd contains pw_comment.
1502 d_pwexpire (i_pwd.U):
1503 This variable conditionally defines PWEXPIRE, which indicates
1504 that struct passwd contains pw_expire.
1506 d_pwgecos (i_pwd.U):
1507 This variable conditionally defines PWGECOS, which indicates
1508 that struct passwd contains pw_gecos.
1510 d_pwpasswd (i_pwd.U):
1511 This variable conditionally defines PWPASSWD, which indicates
1512 that struct passwd contains pw_passwd.
1514 d_pwquota (i_pwd.U):
1515 This variable conditionally defines PWQUOTA, which indicates
1516 that struct passwd contains pw_quota.
1518 d_qgcvt (d_qgcvt.U):
1519 This variable conditionally defines the HAS_QGCVT symbol, which
1520 indicates to the C program that the qgcvt() routine is available.
1522 d_quad (quadtype.U):
1523 This variable, if defined, tells that there's a 64-bit integer type,
1526 d_random_r (d_random_r.U):
1527 This variable conditionally defines the HAS_RANDOM_R symbol,
1528 which indicates to the C program that the random_r()
1529 routine is available.
1531 d_readdir64_r (d_readdir64_r.U):
1532 This variable conditionally defines the HAS_READDIR64_R symbol,
1533 which indicates to the C program that the readdir64_r()
1534 routine is available.
1536 d_readdir (d_readdir.U):
1537 This variable conditionally defines HAS_READDIR if readdir() is
1538 available to read directory entries.
1540 d_readdir_r (d_readdir_r.U):
1541 This variable conditionally defines the HAS_READDIR_R symbol,
1542 which indicates to the C program that the readdir_r()
1543 routine is available.
1545 d_readlink (d_readlink.U):
1546 This variable conditionally defines the HAS_READLINK symbol, which
1547 indicates to the C program that the readlink() routine is available
1548 to read the value of a symbolic link.
1550 d_readv (d_readv.U):
1551 This variable conditionally defines the HAS_READV symbol, which
1552 indicates to the C program that the readv() routine is available.
1554 d_recvmsg (d_recvmsg.U):
1555 This variable conditionally defines the HAS_RECVMSG symbol, which
1556 indicates to the C program that the recvmsg() routine is available.
1558 d_rename (d_rename.U):
1559 This variable conditionally defines the HAS_RENAME symbol, which
1560 indicates to the C program that the rename() routine is available
1563 d_rewinddir (d_readdir.U):
1564 This variable conditionally defines HAS_REWINDDIR if rewinddir() is
1567 d_rmdir (d_rmdir.U):
1568 This variable conditionally defines HAS_RMDIR if rmdir() is
1569 available to remove directories.
1571 d_safebcpy (d_safebcpy.U):
1572 This variable conditionally defines the HAS_SAFE_BCOPY symbol if
1573 the bcopy() routine can do overlapping copies. Normally, you
1574 should probably use memmove().
1576 d_safemcpy (d_safemcpy.U):
1577 This variable conditionally defines the HAS_SAFE_MEMCPY symbol if
1578 the memcpy() routine can do overlapping copies.
1579 For overlapping copies, memmove() should be used, if available.
1581 d_sanemcmp (d_sanemcmp.U):
1582 This variable conditionally defines the HAS_SANE_MEMCMP symbol if
1583 the memcpy() routine is available and can be used to compare relative
1584 magnitudes of chars with their high bits set.
1586 d_sbrkproto (d_sbrkproto.U):
1587 This variable conditionally defines the HAS_SBRK_PROTO symbol,
1588 which indicates to the C program that the system provides
1589 a prototype for the sbrk() function. Otherwise, it is
1590 up to the program to supply one.
1592 d_sched_yield (d_pthread_y.U):
1593 This variable conditionally defines the HAS_SCHED_YIELD
1594 symbol if the sched_yield routine is available to yield
1595 the execution of the current thread.
1597 d_scm_rights (d_socket.U):
1598 This variable conditionally defines the HAS_SCM_RIGHTS symbol,
1599 which indicates that the SCM_RIGHTS is available. #ifdef is
1600 not enough because it may be an enum, glibc has been known to do this.
1602 d_seekdir (d_readdir.U):
1603 This variable conditionally defines HAS_SEEKDIR if seekdir() is
1606 d_select (d_select.U):
1607 This variable conditionally defines HAS_SELECT if select() is
1608 available to select active file descriptors. A <sys/time.h>
1609 inclusion may be necessary for the timeout field.
1612 This variable conditionally defines the HAS_SEM symbol, which
1613 indicates that the entire sem*(2) library is present.
1615 d_semctl (d_semctl.U):
1616 This variable conditionally defines the HAS_SEMCTL symbol, which
1617 indicates to the C program that the semctl() routine is available.
1619 d_semctl_semid_ds (d_union_semun.U):
1620 This variable conditionally defines USE_SEMCTL_SEMID_DS, which
1621 indicates that struct semid_ds * is to be used for semctl IPC_STAT.
1623 d_semctl_semun (d_union_semun.U):
1624 This variable conditionally defines USE_SEMCTL_SEMUN, which
1625 indicates that union semun is to be used for semctl IPC_STAT.
1627 d_semget (d_semget.U):
1628 This variable conditionally defines the HAS_SEMGET symbol, which
1629 indicates to the C program that the semget() routine is available.
1631 d_semop (d_semop.U):
1632 This variable conditionally defines the HAS_SEMOP symbol, which
1633 indicates to the C program that the semop() routine is available.
1635 d_sendmsg (d_sendmsg.U):
1636 This variable conditionally defines the HAS_SENDMSG symbol, which
1637 indicates to the C program that the sendmsg() routine is available.
1639 d_setegid (d_setegid.U):
1640 This variable conditionally defines the HAS_SETEGID symbol, which
1641 indicates to the C program that the setegid() routine is available
1642 to change the effective gid of the current program.
1644 d_seteuid (d_seteuid.U):
1645 This variable conditionally defines the HAS_SETEUID symbol, which
1646 indicates to the C program that the seteuid() routine is available
1647 to change the effective uid of the current program.
1649 d_setgrent (d_setgrent.U):
1650 This variable conditionally defines the HAS_SETGRENT symbol, which
1651 indicates to the C program that the setgrent() routine is available
1652 for initializing sequential access to the group database.
1654 d_setgrent_r (d_setgrent_r.U):
1655 This variable conditionally defines the HAS_SETGRENT_R symbol,
1656 which indicates to the C program that the setgrent_r()
1657 routine is available.
1659 d_setgrps (d_setgrps.U):
1660 This variable conditionally defines the HAS_SETGROUPS symbol, which
1661 indicates to the C program that the setgroups() routine is available
1662 to set the list of process groups.
1664 d_sethent (d_sethent.U):
1665 This variable conditionally defines HAS_SETHOSTENT if sethostent() is
1668 d_sethostent_r (d_sethostent_r.U):
1669 This variable conditionally defines the HAS_SETHOSTENT_R symbol,
1670 which indicates to the C program that the sethostent_r()
1671 routine is available.
1673 d_setitimer (d_setitimer.U):
1674 This variable conditionally defines the HAS_SETITIMER symbol, which
1675 indicates to the C program that the setitimer() routine is available.
1677 d_setlinebuf (d_setlnbuf.U):
1678 This variable conditionally defines the HAS_SETLINEBUF symbol, which
1679 indicates to the C program that the setlinebuf() routine is available
1680 to change stderr or stdout from block-buffered or unbuffered to a
1683 d_setlocale (d_setlocale.U):
1684 This variable conditionally defines HAS_SETLOCALE if setlocale() is
1685 available to handle locale-specific ctype implementations.
1687 d_setlocale_r (d_setlocale_r.U):
1688 This variable conditionally defines the HAS_SETLOCALE_R symbol,
1689 which indicates to the C program that the setlocale_r()
1690 routine is available.
1692 d_setnent (d_setnent.U):
1693 This variable conditionally defines HAS_SETNETENT if setnetent() is
1696 d_setnetent_r (d_setnetent_r.U):
1697 This variable conditionally defines the HAS_SETNETENT_R symbol,
1698 which indicates to the C program that the setnetent_r()
1699 routine is available.
1701 d_setpent (d_setpent.U):
1702 This variable conditionally defines HAS_SETPROTOENT if setprotoent() is
1705 d_setpgid (d_setpgid.U):
1706 This variable conditionally defines the HAS_SETPGID symbol if the
1707 setpgid(pid, gpid) function is available to set process group ID.
1709 d_setpgrp2 (d_setpgrp2.U):
1710 This variable conditionally defines the HAS_SETPGRP2 symbol, which
1711 indicates to the C program that the setpgrp2() (as in DG/UX) routine
1712 is available to set the current process group.
1714 d_setpgrp (d_setpgrp.U):
1715 This variable conditionally defines HAS_SETPGRP if setpgrp() is
1716 available to set the current process group.
1718 d_setprior (d_setprior.U):
1719 This variable conditionally defines HAS_SETPRIORITY if setpriority()
1720 is available to set a process's priority.
1722 d_setproctitle (d_setproctitle.U):
1723 This variable conditionally defines the HAS_SETPROCTITLE symbol,
1724 which indicates to the C program that the setproctitle() routine
1727 d_setprotoent_r (d_setprotoent_r.U):
1728 This variable conditionally defines the HAS_SETPROTOENT_R symbol,
1729 which indicates to the C program that the setprotoent_r()
1730 routine is available.
1732 d_setpwent (d_setpwent.U):
1733 This variable conditionally defines the HAS_SETPWENT symbol, which
1734 indicates to the C program that the setpwent() routine is available
1735 for initializing sequential access to the passwd database.
1737 d_setpwent_r (d_setpwent_r.U):
1738 This variable conditionally defines the HAS_SETPWENT_R symbol,
1739 which indicates to the C program that the setpwent_r()
1740 routine is available.
1742 d_setregid (d_setregid.U):
1743 This variable conditionally defines HAS_SETREGID if setregid() is
1744 available to change the real and effective gid of the current
1747 d_setresgid (d_setregid.U):
1748 This variable conditionally defines HAS_SETRESGID if setresgid() is
1749 available to change the real, effective and saved gid of the current
1752 d_setresuid (d_setreuid.U):
1753 This variable conditionally defines HAS_SETREUID if setresuid() is
1754 available to change the real, effective and saved uid of the current
1757 d_setreuid (d_setreuid.U):
1758 This variable conditionally defines HAS_SETREUID if setreuid() is
1759 available to change the real and effective uid of the current
1762 d_setrgid (d_setrgid.U):
1763 This variable conditionally defines the HAS_SETRGID symbol, which
1764 indicates to the C program that the setrgid() routine is available
1765 to change the real gid of the current program.
1767 d_setruid (d_setruid.U):
1768 This variable conditionally defines the HAS_SETRUID symbol, which
1769 indicates to the C program that the setruid() routine is available
1770 to change the real uid of the current program.
1772 d_setsent (d_setsent.U):
1773 This variable conditionally defines HAS_SETSERVENT if setservent() is
1776 d_setservent_r (d_setservent_r.U):
1777 This variable conditionally defines the HAS_SETSERVENT_R symbol,
1778 which indicates to the C program that the setservent_r()
1779 routine is available.
1781 d_setsid (d_setsid.U):
1782 This variable conditionally defines HAS_SETSID if setsid() is
1783 available to set the process group ID.
1785 d_setvbuf (d_setvbuf.U):
1786 This variable conditionally defines the HAS_SETVBUF symbol, which
1787 indicates to the C program that the setvbuf() routine is available
1788 to change buffering on an open stdio stream.
1791 This variable conditionally defines the USE_SFIO symbol,
1792 and indicates whether sfio is available (and should be used).
1795 This variable conditionally defines the HAS_SHM symbol, which
1796 indicates that the entire shm*(2) library is present.
1798 d_shmat (d_shmat.U):
1799 This variable conditionally defines the HAS_SHMAT symbol, which
1800 indicates to the C program that the shmat() routine is available.
1802 d_shmatprototype (d_shmat.U):
1803 This variable conditionally defines the HAS_SHMAT_PROTOTYPE
1804 symbol, which indicates that sys/shm.h has a prototype for
1807 d_shmctl (d_shmctl.U):
1808 This variable conditionally defines the HAS_SHMCTL symbol, which
1809 indicates to the C program that the shmctl() routine is available.
1811 d_shmdt (d_shmdt.U):
1812 This variable conditionally defines the HAS_SHMDT symbol, which
1813 indicates to the C program that the shmdt() routine is available.
1815 d_shmget (d_shmget.U):
1816 This variable conditionally defines the HAS_SHMGET symbol, which
1817 indicates to the C program that the shmget() routine is available.
1819 d_sigaction (d_sigaction.U):
1820 This variable conditionally defines the HAS_SIGACTION symbol, which
1821 indicates that the Vr4 sigaction() routine is available.
1823 d_sigprocmask (d_sigprocmask.U):
1824 This variable conditionally defines HAS_SIGPROCMASK
1825 if sigprocmask() is available to examine or change the signal mask
1826 of the calling process.
1828 d_sigsetjmp (d_sigsetjmp.U):
1829 This variable conditionally defines the HAS_SIGSETJMP symbol,
1830 which indicates that the sigsetjmp() routine is available to
1831 call setjmp() and optionally save the process's signal mask.
1833 d_sockatmark (d_sockatmark.U):
1834 This variable conditionally defines the HAS_SOCKATMARK symbol, which
1835 indicates to the C program that the sockatmark() routine is available.
1837 d_sockatmarkproto (d_sockatmarkproto.U):
1838 This variable conditionally defines the HAS_SOCKATMARK_PROTO symbol,
1839 which indicates to the C program that the system provides
1840 a prototype for the sockatmark() function. Otherwise, it is
1841 up to the program to supply one.
1843 d_socket (d_socket.U):
1844 This variable conditionally defines HAS_SOCKET, which indicates
1845 that the BSD socket interface is supported.
1847 d_socklen_t (d_socklen_t.U):
1848 This symbol will be defined if the C compiler supports socklen_t.
1850 d_sockpair (d_socket.U):
1851 This variable conditionally defines the HAS_SOCKETPAIR symbol, which
1852 indicates that the BSD socketpair() is supported.
1854 d_socks5_init (d_socks5_init.U):
1855 This variable conditionally defines the HAS_SOCKS5_INIT symbol, which
1856 indicates to the C program that the socks5_init() routine is available.
1858 d_sqrtl (d_sqrtl.U):
1859 This variable conditionally defines the HAS_SQRTL symbol, which
1860 indicates to the C program that the sqrtl() routine is available.
1862 d_srand48_r (d_srand48_r.U):
1863 This variable conditionally defines the HAS_SRAND48_R symbol,
1864 which indicates to the C program that the srand48_r()
1865 routine is available.
1867 d_srandom_r (d_srandom_r.U):
1868 This variable conditionally defines the HAS_SRANDOM_R symbol,
1869 which indicates to the C program that the srandom_r()
1870 routine is available.
1872 d_sresgproto (d_sresgproto.U):
1873 This variable conditionally defines the HAS_SETRESGID_PROTO symbol,
1874 which indicates to the C program that the system provides
1875 a prototype for the setresgid() function. Otherwise, it is
1876 up to the program to supply one.
1878 d_sresuproto (d_sresuproto.U):
1879 This variable conditionally defines the HAS_SETRESUID_PROTO symbol,
1880 which indicates to the C program that the system provides
1881 a prototype for the setresuid() function. Otherwise, it is
1882 up to the program to supply one.
1884 d_statblks (d_statblks.U):
1885 This variable conditionally defines USE_STAT_BLOCKS
1886 if this system has a stat structure declaring
1887 st_blksize and st_blocks.
1889 d_statfs_f_flags (d_statfs_f_flags.U):
1890 This variable conditionally defines the HAS_STRUCT_STATFS_F_FLAGS
1891 symbol, which indicates to struct statfs from has f_flags member.
1892 This kind of struct statfs is coming from sys/mount.h (BSD),
1893 not from sys/statfs.h (SYSV).
1895 d_statfs_s (d_statfs_s.U):
1896 This variable conditionally defines the HAS_STRUCT_STATFS symbol,
1897 which indicates that the struct statfs is supported.
1899 d_statvfs (d_statvfs.U):
1900 This variable conditionally defines the HAS_STATVFS symbol, which
1901 indicates to the C program that the statvfs() routine is available.
1903 d_stdio_cnt_lval (d_stdstdio.U):
1904 This variable conditionally defines STDIO_CNT_LVALUE if the
1905 FILE_cnt macro can be used as an lvalue.
1907 d_stdio_ptr_lval (d_stdstdio.U):
1908 This variable conditionally defines STDIO_PTR_LVALUE if the
1909 FILE_ptr macro can be used as an lvalue.
1911 d_stdio_ptr_lval_nochange_cnt (d_stdstdio.U):
1912 This symbol is defined if using the FILE_ptr macro as an lvalue
1913 to increase the pointer by n leaves File_cnt(fp) unchanged.
1915 d_stdio_ptr_lval_sets_cnt (d_stdstdio.U):
1916 This symbol is defined if using the FILE_ptr macro as an lvalue
1917 to increase the pointer by n has the side effect of decreasing the
1918 value of File_cnt(fp) by n.
1920 d_stdio_stream_array (stdio_streams.U):
1921 This variable tells whether there is an array holding
1924 d_stdiobase (d_stdstdio.U):
1925 This variable conditionally defines USE_STDIO_BASE if this system
1926 has a FILE structure declaring a usable _base field (or equivalent)
1929 d_stdstdio (d_stdstdio.U):
1930 This variable conditionally defines USE_STDIO_PTR if this system
1931 has a FILE structure declaring usable _ptr and _cnt fields (or
1932 equivalent) in stdio.h.
1934 d_strchr (d_strchr.U):
1935 This variable conditionally defines HAS_STRCHR if strchr() and
1936 strrchr() are available for string searching.
1938 d_strcoll (d_strcoll.U):
1939 This variable conditionally defines HAS_STRCOLL if strcoll() is
1940 available to compare strings using collating information.
1942 d_strctcpy (d_strctcpy.U):
1943 This variable conditionally defines the USE_STRUCT_COPY symbol, which
1944 indicates to the C program that this C compiler knows how to copy
1947 d_strerrm (d_strerror.U):
1948 This variable holds what Strerrr is defined as to translate an error
1949 code condition into an error message string. It could be 'strerror'
1950 or a more complex macro emulating strrror with sys_errlist[], or the
1951 "unknown" string when both strerror and sys_errlist are missing.
1953 d_strerror (d_strerror.U):
1954 This variable conditionally defines HAS_STRERROR if strerror() is
1955 available to translate error numbers to strings.
1957 d_strerror_r (d_strerror_r.U):
1958 This variable conditionally defines the HAS_STRERROR_R symbol,
1959 which indicates to the C program that the strerror_r()
1960 routine is available.
1962 d_strftime (d_strftime.U):
1963 This variable conditionally defines the HAS_STRFTIME symbol, which
1964 indicates to the C program that the strftime() routine is available.
1966 d_strtod (d_strtod.U):
1967 This variable conditionally defines the HAS_STRTOD symbol, which
1968 indicates to the C program that the strtod() routine is available
1969 to provide better numeric string conversion than atof().
1971 d_strtol (d_strtol.U):
1972 This variable conditionally defines the HAS_STRTOL symbol, which
1973 indicates to the C program that the strtol() routine is available
1974 to provide better numeric string conversion than atoi() and friends.
1976 d_strtold (d_strtold.U):
1977 This variable conditionally defines the HAS_STRTOLD symbol, which
1978 indicates to the C program that the strtold() routine is available.
1980 d_strtoll (d_strtoll.U):
1981 This variable conditionally defines the HAS_STRTOLL symbol, which
1982 indicates to the C program that the strtoll() routine is available.
1984 d_strtoq (d_strtoq.U):
1985 This variable conditionally defines the HAS_STRTOQ symbol, which
1986 indicates to the C program that the strtoq() routine is available.
1988 d_strtoul (d_strtoul.U):
1989 This variable conditionally defines the HAS_STRTOUL symbol, which
1990 indicates to the C program that the strtoul() routine is available
1991 to provide conversion of strings to unsigned long.
1993 d_strtoull (d_strtoull.U):
1994 This variable conditionally defines the HAS_STRTOULL symbol, which
1995 indicates to the C program that the strtoull() routine is available.
1997 d_strtouq (d_strtouq.U):
1998 This variable conditionally defines the HAS_STRTOUQ symbol, which
1999 indicates to the C program that the strtouq() routine is available.
2001 d_strxfrm (d_strxfrm.U):
2002 This variable conditionally defines HAS_STRXFRM if strxfrm() is
2003 available to transform strings.
2005 d_suidsafe (d_dosuid.U):
2006 This variable conditionally defines SETUID_SCRIPTS_ARE_SECURE_NOW
2007 if setuid scripts can be secure. This test looks in /dev/fd/.
2009 d_symlink (d_symlink.U):
2010 This variable conditionally defines the HAS_SYMLINK symbol, which
2011 indicates to the C program that the symlink() routine is available
2012 to create symbolic links.
2014 d_syscall (d_syscall.U):
2015 This variable conditionally defines HAS_SYSCALL if syscall() is
2016 available call arbitrary system calls.
2018 d_syscallproto (d_syscallproto.U):
2019 This variable conditionally defines the HAS_SYSCALL_PROTO symbol,
2020 which indicates to the C program that the system provides
2021 a prototype for the syscall() function. Otherwise, it is
2022 up to the program to supply one.
2024 d_sysconf (d_sysconf.U):
2025 This variable conditionally defines the HAS_SYSCONF symbol, which
2026 indicates to the C program that the sysconf() routine is available
2027 to determine system related limits and options.
2029 d_sysernlst (d_strerror.U):
2030 This variable conditionally defines HAS_SYS_ERRNOLIST if sys_errnolist[]
2031 is available to translate error numbers to the symbolic name.
2033 d_syserrlst (d_strerror.U):
2034 This variable conditionally defines HAS_SYS_ERRLIST if sys_errlist[] is
2035 available to translate error numbers to strings.
2037 d_system (d_system.U):
2038 This variable conditionally defines HAS_SYSTEM if system() is
2039 available to issue a shell command.
2041 d_tcgetpgrp (d_tcgtpgrp.U):
2042 This variable conditionally defines the HAS_TCGETPGRP symbol, which
2043 indicates to the C program that the tcgetpgrp() routine is available.
2044 to get foreground process group ID.
2046 d_tcsetpgrp (d_tcstpgrp.U):
2047 This variable conditionally defines the HAS_TCSETPGRP symbol, which
2048 indicates to the C program that the tcsetpgrp() routine is available
2049 to set foreground process group ID.
2051 d_telldir (d_readdir.U):
2052 This variable conditionally defines HAS_TELLDIR if telldir() is
2055 d_telldirproto (d_telldirproto.U):
2056 This variable conditionally defines the HAS_TELLDIR_PROTO symbol,
2057 which indicates to the C program that the system provides
2058 a prototype for the telldir() function. Otherwise, it is
2059 up to the program to supply one.
2062 This variable conditionally defines the HAS_TIME symbol, which indicates
2063 that the time() routine exists. The time() routine is normaly
2064 provided on UNIX systems.
2066 d_times (d_times.U):
2067 This variable conditionally defines the HAS_TIMES symbol, which indicates
2068 that the times() routine exists. The times() routine is normaly
2069 provided on UNIX systems. You may have to include <sys/times.h>.
2071 d_tm_tm_gmtoff (i_time.U):
2072 This variable conditionally defines HAS_TM_TM_GMTOFF, which indicates
2073 indicates to the C program that the struct tm has the tm_gmtoff field.
2075 d_tm_tm_zone (i_time.U):
2076 This variable conditionally defines HAS_TM_TM_ZONE, which indicates
2077 indicates to the C program that the struct tm has the tm_zone field.
2079 d_tmpnam_r (d_tmpnam_r.U):
2080 This variable conditionally defines the HAS_TMPNAM_R symbol,
2081 which indicates to the C program that the tmpnam_r()
2082 routine is available.
2084 d_truncate (d_truncate.U):
2085 This variable conditionally defines HAS_TRUNCATE if truncate() is
2086 available to truncate files.
2088 d_ttyname_r (d_ttyname_r.U):
2089 This variable conditionally defines the HAS_TTYNAME_R symbol,
2090 which indicates to the C program that the ttyname_r()
2091 routine is available.
2093 d_tzname (d_tzname.U):
2094 This variable conditionally defines HAS_TZNAME if tzname[] is
2095 available to access timezone names.
2097 d_u32align (d_u32align.U):
2098 This variable tells whether you must access character data
2099 through U32-aligned pointers.
2101 d_ualarm (d_ualarm.U):
2102 This variable conditionally defines the HAS_UALARM symbol, which
2103 indicates to the C program that the ualarm() routine is available.
2105 d_umask (d_umask.U):
2106 This variable conditionally defines the HAS_UMASK symbol, which
2107 indicates to the C program that the umask() routine is available.
2108 to set and get the value of the file creation mask.
2110 d_uname (d_gethname.U):
2111 This variable conditionally defines the HAS_UNAME symbol, which
2112 indicates to the C program that the uname() routine may be
2113 used to derive the host name.
2115 d_union_semun (d_union_semun.U):
2116 This variable conditionally defines HAS_UNION_SEMUN if the
2117 union semun is defined by including <sys/sem.h>.
2119 d_unordered (d_unordered.U):
2120 This variable conditionally defines the HAS_UNORDERED symbol, which
2121 indicates to the C program that the unordered() routine is available.
2123 d_usleep (d_usleep.U):
2124 This variable conditionally defines HAS_USLEEP if usleep() is
2125 available to do high granularity sleeps.
2127 d_usleepproto (d_usleepproto.U):
2128 This variable conditionally defines the HAS_USLEEP_PROTO symbol,
2129 which indicates to the C program that the system provides
2130 a prototype for the usleep() function. Otherwise, it is
2131 up to the program to supply one.
2133 d_ustat (d_ustat.U):
2134 This variable conditionally defines HAS_USTAT if ustat() is
2135 available to query file system statistics by dev_t.
2137 d_vendorarch (vendorarch.U):
2138 This variable conditionally defined PERL_VENDORARCH.
2140 d_vendorbin (vendorbin.U):
2141 This variable conditionally defines PERL_VENDORBIN.
2143 d_vendorlib (vendorlib.U):
2144 This variable conditionally defines PERL_VENDORLIB.
2146 d_vfork (d_vfork.U):
2147 This variable conditionally defines the HAS_VFORK symbol, which
2148 indicates the vfork() routine is available.
2150 d_void_closedir (d_closedir.U):
2151 This variable conditionally defines VOID_CLOSEDIR if closedir()
2152 does not return a value.
2154 d_voidsig (d_voidsig.U):
2155 This variable conditionally defines VOIDSIG if this system
2156 declares "void (*signal(...))()" in signal.h. The old way was to
2157 declare it as "int (*signal(...))()".
2159 d_voidtty (i_sysioctl.U):
2160 This variable conditionally defines USE_IOCNOTTY to indicate that the
2161 ioctl() call with TIOCNOTTY should be used to void tty association.
2162 Otherwise (on USG probably), it is enough to close the standard file
2163 decriptors and do a setpgrp().
2165 d_volatile (d_volatile.U):
2166 This variable conditionally defines the HASVOLATILE symbol, which
2167 indicates to the C program that this C compiler knows about the
2168 volatile declaration.
2170 d_vprintf (d_vprintf.U):
2171 This variable conditionally defines the HAS_VPRINTF symbol, which
2172 indicates to the C program that the vprintf() routine is available
2173 to printf with a pointer to an argument list.
2175 d_wait4 (d_wait4.U):
2176 This variable conditionally defines the HAS_WAIT4 symbol, which
2177 indicates the wait4() routine is available.
2179 d_waitpid (d_waitpid.U):
2180 This variable conditionally defines HAS_WAITPID if waitpid() is
2181 available to wait for child process.
2183 d_wcstombs (d_wcstombs.U):
2184 This variable conditionally defines the HAS_WCSTOMBS symbol, which
2185 indicates to the C program that the wcstombs() routine is available
2186 to convert wide character strings to multibyte strings.
2188 d_wctomb (d_wctomb.U):
2189 This variable conditionally defines the HAS_WCTOMB symbol, which
2190 indicates to the C program that the wctomb() routine is available
2191 to convert a wide character to a multibyte.
2193 d_writev (d_writev.U):
2194 This variable conditionally defines the HAS_WRITEV symbol, which
2195 indicates to the C program that the writev() routine is available.
2198 This variable conditionally defines the symbol XENIX, which alerts
2199 the C program that it runs under Xenix.
2202 This variable is used internally by Configure to determine the
2203 full pathname (if any) of the date program. After Configure runs,
2204 the value is reset to a plain "date" and is not useful.
2206 db_hashtype (i_db.U):
2207 This variable contains the type of the hash structure element
2208 in the <db.h> header file. In older versions of DB, it was
2209 int, while in newer ones it is u_int32_t.
2211 db_prefixtype (i_db.U):
2212 This variable contains the type of the prefix structure element
2213 in the <db.h> header file. In older versions of DB, it was
2214 int, while in newer ones it is size_t.
2216 db_version_major (i_db.U):
2217 This variable contains the major version number of
2218 Berkeley DB found in the <db.h> header file.
2220 db_version_minor (i_db.U):
2221 This variable contains the minor version number of
2222 Berkeley DB found in the <db.h> header file.
2223 For DB version 1 this is always 0.
2225 db_version_patch (i_db.U):
2226 This variable contains the patch version number of
2227 Berkeley DB found in the <db.h> header file.
2228 For DB version 1 this is always 0.
2230 defvoidused (voidflags.U):
2231 This variable contains the default value of the VOIDUSED symbol (15).
2233 direntrytype (i_dirent.U):
2234 This symbol is set to 'struct direct' or 'struct dirent' depending on
2235 whether dirent is available or not. You should use this pseudo type to
2236 portably declare your directory entries.
2239 This variable contains the extension that is to be used for the
2240 dynamically loaded modules that perl generaties.
2243 This variable contains the name of the dynamic loading file that
2244 will be used with the package.
2246 doublesize (doublesize.U):
2247 This variable contains the value of the DOUBLESIZE symbol, which
2248 indicates to the C program how many bytes there are in a double.
2250 drand01 (randfunc.U):
2251 Indicates the macro to be used to generate normalized
2252 random numbers. Uses randfunc, often divided by
2253 (double) (((unsigned long) 1 << randbits)) in order to
2254 normalize the result.
2255 In C programs, the macro 'Drand01' is mapped to drand01.
2257 drand48_r_proto (d_drand48_r.U):
2258 This variable encodes the prototype of drand48_r.
2259 It is zero if d_drand48_r is undef, and one of the
2260 REENTRANT_PROTO_T_ABC macros of reentr.h if d_drand48_r
2263 dynamic_ext (Extensions.U):
2264 This variable holds a list of XS extension files we want to
2265 link dynamically into the package. It is used by Makefile.
2267 eagain (nblock_io.U):
2268 This variable bears the symbolic errno code set by read() when no
2269 data is present on the file and non-blocking I/O was enabled (otherwise,
2270 read() blocks naturally).
2273 This variable conditionally defines EBCDIC if this
2274 system uses EBCDIC encoding. Among other things, this
2275 means that the character ranges are not contiguous.
2279 This variable is used internally by Configure to determine the
2280 full pathname (if any) of the echo program. After Configure runs,
2281 the value is reset to a plain "echo" and is not useful.
2284 This variable is used internally by Configure to determine the
2285 full pathname (if any) of the egrep program. After Configure runs,
2286 the value is reset to a plain "egrep" and is not useful.
2289 This variable is defined but not used by Configure.
2290 The value is a plain '' and is not useful.
2292 endgrent_r_proto (d_endgrent_r.U):
2293 This variable encodes the prototype of endgrent_r.
2294 It is zero if d_endgrent_r is undef, and one of the
2295 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endgrent_r
2298 endhostent_r_proto (d_endhostent_r.U):
2299 This variable encodes the prototype of endhostent_r.
2300 It is zero if d_endhostent_r is undef, and one of the
2301 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endhostent_r
2304 endnetent_r_proto (d_endnetent_r.U):
2305 This variable encodes the prototype of endnetent_r.
2306 It is zero if d_endnetent_r is undef, and one of the
2307 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endnetent_r
2310 endprotoent_r_proto (d_endprotoent_r.U):
2311 This variable encodes the prototype of endprotoent_r.
2312 It is zero if d_endprotoent_r is undef, and one of the
2313 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endprotoent_r
2316 endpwent_r_proto (d_endpwent_r.U):
2317 This variable encodes the prototype of endpwent_r.
2318 It is zero if d_endpwent_r is undef, and one of the
2319 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endpwent_r
2322 endservent_r_proto (d_endservent_r.U):
2323 This variable encodes the prototype of endservent_r.
2324 It is zero if d_endservent_r is undef, and one of the
2325 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endservent_r
2329 When running under Eunice this variable contains a command which will
2330 convert a shell script to the proper form of text file for it to be
2331 executable by the shell. On other systems it is a no-op.
2334 This is an old synonym for _exe.
2337 This variable is used internally by Configure to determine the
2338 full pathname (if any) of the expr program. After Configure runs,
2339 the value is reset to a plain "expr" and is not useful.
2341 extensions (Extensions.U):
2342 This variable holds a list of all extension files (both XS and
2343 non-xs linked into the package. It is propagated to Config.pm
2344 and is typically used to test whether a particular extesion
2348 This variable holds a list of extra modules to install.
2350 fflushNULL (fflushall.U):
2351 This symbol, if defined, tells that fflush(NULL) does flush
2352 all pending stdio output.
2354 fflushall (fflushall.U):
2355 This symbol, if defined, tells that to flush
2356 all pending stdio output one must loop through all
2357 the stdio file handles stored in an array and fflush them.
2358 Note that if fflushNULL is defined, fflushall will not
2359 even be probed for and will be left undefined.
2362 This variable is defined but not used by Configure.
2363 The value is a plain '' and is not useful.
2365 firstmakefile (Unix.U):
2366 This variable defines the first file searched by make. On unix,
2367 it is makefile (then Makefile). On case-insensitive systems,
2368 it might be something else. This is only used to deal with
2369 convoluted make depend tricks.
2372 This variable is defined but not used by Configure.
2373 The value is a plain '' and is not useful.
2375 fpossize (fpossize.U):
2376 This variable contains the size of a fpostype in bytes.
2378 fpostype (fpostype.U):
2379 This variable defines Fpos_t to be something like fpos_t, long,
2380 uint, or whatever type is used to declare file positions in libc.
2382 freetype (mallocsrc.U):
2383 This variable contains the return type of free(). It is usually
2384 void, but occasionally int.
2387 This variable contains the command used by Configure
2388 to copy files from the target host. Useful and available
2389 only during Perl build.
2390 The string ':' if not cross-compiling.
2393 This variable contains the full pathname to 'ar', whether or
2394 not the user has specified 'portability'. This is only used
2398 This variable contains the full pathname to 'csh', whether or
2399 not the user has specified 'portability'. This is only used
2400 in the compiled C program, and we assume that all systems which
2401 can share this executable will have the same full pathname to
2404 full_sed (Loc_sed.U):
2405 This variable contains the full pathname to 'sed', whether or
2406 not the user has specified 'portability'. This is only used
2407 in the compiled C program, and we assume that all systems which
2408 can share this executable will have the same full pathname to
2411 gccosandvers (gccvers.U):
2412 If GNU cc (gcc) is used, this variable the operating system and
2413 version used to compile the gcc. It is set to '' if not gcc,
2414 or if nothing useful can be parsed as the os version.
2416 gccversion (gccvers.U):
2417 If GNU cc (gcc) is used, this variable holds '1' or '2' to
2418 indicate whether the compiler is version 1 or 2. This is used in
2419 setting some of the default cflags. It is set to '' if not gcc.
2421 getgrent_r_proto (d_getgrent_r.U):
2422 This variable encodes the prototype of getgrent_r.
2423 It is zero if d_getgrent_r is undef, and one of the
2424 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrent_r
2427 getgrgid_r_proto (d_getgrgid_r.U):
2428 This variable encodes the prototype of getgrgid_r.
2429 It is zero if d_getgrgid_r is undef, and one of the
2430 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrgid_r
2433 getgrnam_r_proto (d_getgrnam_r.U):
2434 This variable encodes the prototype of getgrnam_r.
2435 It is zero if d_getgrnam_r is undef, and one of the
2436 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrnam_r
2439 gethostbyaddr_r_proto (d_gethostbyaddr_r.U):
2440 This variable encodes the prototype of gethostbyaddr_r.
2441 It is zero if d_gethostbyaddr_r is undef, and one of the
2442 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyaddr_r
2445 gethostbyname_r_proto (d_gethostbyname_r.U):
2446 This variable encodes the prototype of gethostbyname_r.
2447 It is zero if d_gethostbyname_r is undef, and one of the
2448 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyname_r
2451 gethostent_r_proto (d_gethostent_r.U):
2452 This variable encodes the prototype of gethostent_r.
2453 It is zero if d_gethostent_r is undef, and one of the
2454 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostent_r
2457 getlogin_r_proto (d_getlogin_r.U):
2458 This variable encodes the prototype of getlogin_r.
2459 It is zero if d_getlogin_r is undef, and one of the
2460 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getlogin_r
2463 getnetbyaddr_r_proto (d_getnetbyaddr_r.U):
2464 This variable encodes the prototype of getnetbyaddr_r.
2465 It is zero if d_getnetbyaddr_r is undef, and one of the
2466 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyaddr_r
2469 getnetbyname_r_proto (d_getnetbyname_r.U):
2470 This variable encodes the prototype of getnetbyname_r.
2471 It is zero if d_getnetbyname_r is undef, and one of the
2472 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyname_r
2475 getnetent_r_proto (d_getnetent_r.U):
2476 This variable encodes the prototype of getnetent_r.
2477 It is zero if d_getnetent_r is undef, and one of the
2478 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetent_r
2481 getprotobyname_r_proto (d_getprotobyname_r.U):
2482 This variable encodes the prototype of getprotobyname_r.
2483 It is zero if d_getprotobyname_r is undef, and one of the
2484 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobyname_r
2487 getprotobynumber_r_proto (d_getprotobynumber_r.U):
2488 This variable encodes the prototype of getprotobynumber_r.
2489 It is zero if d_getprotobynumber_r is undef, and one of the
2490 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobynumber_r
2493 getprotoent_r_proto (d_getprotoent_r.U):
2494 This variable encodes the prototype of getprotoent_r.
2495 It is zero if d_getprotoent_r is undef, and one of the
2496 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotoent_r
2499 getpwent_r_proto (d_getpwent_r.U):
2500 This variable encodes the prototype of getpwent_r.
2501 It is zero if d_getpwent_r is undef, and one of the
2502 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwent_r
2505 getpwnam_r_proto (d_getpwnam_r.U):
2506 This variable encodes the prototype of getpwnam_r.
2507 It is zero if d_getpwnam_r is undef, and one of the
2508 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwnam_r
2511 getpwuid_r_proto (d_getpwuid_r.U):
2512 This variable encodes the prototype of getpwuid_r.
2513 It is zero if d_getpwuid_r is undef, and one of the
2514 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwuid_r
2517 getservbyname_r_proto (d_getservbyname_r.U):
2518 This variable encodes the prototype of getservbyname_r.
2519 It is zero if d_getservbyname_r is undef, and one of the
2520 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyname_r
2523 getservbyport_r_proto (d_getservbyport_r.U):
2524 This variable encodes the prototype of getservbyport_r.
2525 It is zero if d_getservbyport_r is undef, and one of the
2526 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyport_r
2529 getservent_r_proto (d_getservent_r.U):
2530 This variable encodes the prototype of getservent_r.
2531 It is zero if d_getservent_r is undef, and one of the
2532 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservent_r
2535 getspnam_r_proto (d_getspnam_r.U):
2536 This variable encodes the prototype of getspnam_r.
2537 It is zero if d_getspnam_r is undef, and one of the
2538 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getspnam_r
2542 This variable contains the format string used for printing a Gid_t.
2544 gidsign (gidsign.U):
2545 This variable contains the signedness of a gidtype.
2546 1 for unsigned, -1 for signed.
2548 gidsize (gidsize.U):
2549 This variable contains the size of a gidtype in bytes.
2551 gidtype (gidtype.U):
2552 This variable defines Gid_t to be something like gid_t, int,
2553 ushort, or whatever type is used to declare the return type
2554 of getgid(). Typically, it is the type of group ids in the kernel.
2557 This variable holds the general path (space-separated) used to
2558 find libraries. It may contain directories that do not exist on
2559 this platform, libpth is the cleaned-up version.
2562 This variable is used internally by Configure to determine the
2563 full pathname (if any) of the gmake program. After Configure runs,
2564 the value is reset to a plain "gmake" and is not useful.
2566 gmtime_r_proto (d_gmtime_r.U):
2567 This variable encodes the prototype of gmtime_r.
2568 It is zero if d_gmtime_r is undef, and one of the
2569 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gmtime_r
2572 gnulibc_version (d_gnulibc.U):
2573 This variable contains the version number of the GNU C library.
2574 It is usually something like '2.2.5'. It is a plain '' if this
2575 is not the GNU C library, or if the version is unknown.
2578 This variable is used internally by Configure to determine the
2579 full pathname (if any) of the grep program. After Configure runs,
2580 the value is reset to a plain "grep" and is not useful.
2583 This variable contains a command that produces the text of the
2584 /etc/group file. This is normally "cat /etc/group", but can be
2585 "ypcat group" when NIS is used.
2586 On some systems, such as os390, there may be no equivalent
2587 command, in which case this variable is unset.
2589 groupstype (groupstype.U):
2590 This variable defines Groups_t to be something like gid_t, int,
2591 ushort, or whatever type is used for the second argument to
2592 getgroups() and setgroups(). Usually, this is the same as
2593 gidtype (gid_t), but sometimes it isn't.
2596 This variable is used internally by Configure to determine the
2597 full pathname (if any) of the gzip program. After Configure runs,
2598 the value is reset to a plain "gzip" and is not useful.
2600 h_fcntl (h_fcntl.U):
2601 This is variable gets set in various places to tell i_fcntl that
2602 <fcntl.h> should be included.
2604 h_sysfile (h_sysfile.U):
2605 This is variable gets set in various places to tell i_sys_file that
2606 <sys/file.h> should be included.
2609 Gives the type of hints used for previous answers. May be one of
2610 "default", "recommended" or "previous".
2613 This variable contains a command that produces the text of the
2614 /etc/hosts file. This is normally "cat /etc/hosts", but can be
2615 "ypcat hosts" when NIS is used.
2616 On some systems, such as os390, there may be no equivalent
2617 command, in which case this variable is unset.
2620 This variable is the size of an I16 in bytes.
2623 This variable contains the C type used for Perl's I16.
2626 This variable is the size of an I32 in bytes.
2629 This variable contains the C type used for Perl's I32.
2632 This variable is the size of an I64 in bytes.
2635 This variable contains the C type used for Perl's I64.
2638 This variable is the size of an I8 in bytes.
2641 This variable contains the C type used for Perl's I8.
2643 i_arpainet (i_arpainet.U):
2644 This variable conditionally defines the I_ARPA_INET symbol,
2645 and indicates whether a C program should include <arpa/inet.h>.
2647 i_bsdioctl (i_sysioctl.U):
2648 This variable conditionally defines the I_SYS_BSDIOCTL symbol, which
2649 indicates to the C program that <sys/bsdioctl.h> exists and should
2652 i_crypt (i_crypt.U):
2653 This variable conditionally defines the I_CRYPT symbol, and indicates
2654 whether a C program should include <crypt.h>.
2657 This variable conditionally defines the I_DB symbol, and indicates
2658 whether a C program may include Berkeley's DB include file <db.h>.
2661 This variable conditionally defines the I_DBM symbol, which
2662 indicates to the C program that <dbm.h> exists and should
2665 i_dirent (i_dirent.U):
2666 This variable conditionally defines I_DIRENT, which indicates
2667 to the C program that it should include <dirent.h>.
2670 This variable conditionally defines the I_DLD symbol, which
2671 indicates to the C program that <dld.h> (GNU dynamic loading)
2672 exists and should be included.
2674 i_dlfcn (i_dlfcn.U):
2675 This variable conditionally defines the I_DLFCN symbol, which
2676 indicates to the C program that <dlfcn.h> exists and should
2679 i_fcntl (i_fcntl.U):
2680 This variable controls the value of I_FCNTL (which tells
2681 the C program to include <fcntl.h>).
2683 i_float (i_float.U):
2684 This variable conditionally defines the I_FLOAT symbol, and indicates
2685 whether a C program may include <float.h> to get symbols like DBL_MAX
2686 or DBL_MIN, i.e. machine dependent floating point values.
2689 This variable conditionally defines the I_FP symbol, and indicates
2690 whether a C program should include <fp.h>.
2692 i_fp_class (i_fp_class.U):
2693 This variable conditionally defines the I_FP_CLASS symbol, and indicates
2694 whether a C program should include <fp_class.h>.
2697 This variable conditionally defines the I_GDBM symbol, which
2698 indicates to the C program that <gdbm.h> exists and should
2702 This variable conditionally defines the I_GRP symbol, and indicates
2703 whether a C program should include <grp.h>.
2705 i_ieeefp (i_ieeefp.U):
2706 This variable conditionally defines the I_IEEEFP symbol, and indicates
2707 whether a C program should include <ieeefp.h>.
2709 i_inttypes (i_inttypes.U):
2710 This variable conditionally defines the I_INTTYPES symbol,
2711 and indicates whether a C program should include <inttypes.h>.
2713 i_langinfo (i_langinfo.U):
2714 This variable conditionally defines the I_LANGINFO symbol,
2715 and indicates whether a C program should include <langinfo.h>.
2717 i_libutil (i_libutil.U):
2718 This variable conditionally defines the I_LIBUTIL symbol, and indicates
2719 whether a C program should include <libutil.h>.
2721 i_limits (i_limits.U):
2722 This variable conditionally defines the I_LIMITS symbol, and indicates
2723 whether a C program may include <limits.h> to get symbols like WORD_BIT
2726 i_locale (i_locale.U):
2727 This variable conditionally defines the I_LOCALE symbol,
2728 and indicates whether a C program should include <locale.h>.
2730 i_machcthr (i_machcthr.U):
2731 This variable conditionally defines the I_MACH_CTHREADS symbol,
2732 and indicates whether a C program should include <mach/cthreads.h>.
2734 i_malloc (i_malloc.U):
2735 This variable conditionally defines the I_MALLOC symbol, and indicates
2736 whether a C program should include <malloc.h>.
2739 This variable conditionally defines the I_MATH symbol, and indicates
2740 whether a C program may include <math.h>.
2742 i_memory (i_memory.U):
2743 This variable conditionally defines the I_MEMORY symbol, and indicates
2744 whether a C program should include <memory.h>.
2746 i_mntent (i_mntent.U):
2747 This variable conditionally defines the I_MNTENT symbol, and indicates
2748 whether a C program should include <mntent.h>.
2751 This variable conditionally defines the I_NDBM symbol, which
2752 indicates to the C program that <ndbm.h> exists and should
2755 i_netdb (i_netdb.U):
2756 This variable conditionally defines the I_NETDB symbol, and indicates
2757 whether a C program should include <netdb.h>.
2759 i_neterrno (i_neterrno.U):
2760 This variable conditionally defines the I_NET_ERRNO symbol, which
2761 indicates to the C program that <net/errno.h> exists and should
2764 i_netinettcp (i_netinettcp.U):
2765 This variable conditionally defines the I_NETINET_TCP symbol,
2766 and indicates whether a C program should include <netinet/tcp.h>.
2769 This variable conditionally defines I_NETINET_IN, which indicates
2770 to the C program that it should include <netinet/in.h>. Otherwise,
2771 you may try <sys/in.h>.
2774 This variable conditionally defines the I_POLL symbol, and indicates
2775 whether a C program should include <poll.h>.
2778 This variable conditionally defines the I_PROT symbol, and indicates
2779 whether a C program should include <prot.h>.
2781 i_pthread (i_pthread.U):
2782 This variable conditionally defines the I_PTHREAD symbol,
2783 and indicates whether a C program should include <pthread.h>.
2786 This variable conditionally defines I_PWD, which indicates
2787 to the C program that it should include <pwd.h>.
2789 i_rpcsvcdbm (i_dbm.U):
2790 This variable conditionally defines the I_RPCSVC_DBM symbol, which
2791 indicates to the C program that <rpcsvc/dbm.h> exists and should
2792 be included. Some System V systems might need this instead of <dbm.h>.
2795 This variable conditionally defines the I_SFIO symbol,
2796 and indicates whether a C program should include <sfio.h>.
2798 i_sgtty (i_termio.U):
2799 This variable conditionally defines the I_SGTTY symbol, which
2800 indicates to the C program that it should include <sgtty.h> rather
2803 i_shadow (i_shadow.U):
2804 This variable conditionally defines the I_SHADOW symbol, and indicates
2805 whether a C program should include <shadow.h>.
2807 i_socks (i_socks.U):
2808 This variable conditionally defines the I_SOCKS symbol, and indicates
2809 whether a C program should include <socks.h>.
2811 i_stdarg (i_varhdr.U):
2812 This variable conditionally defines the I_STDARG symbol, which
2813 indicates to the C program that <stdarg.h> exists and should
2816 i_stddef (i_stddef.U):
2817 This variable conditionally defines the I_STDDEF symbol, which
2818 indicates to the C program that <stddef.h> exists and should
2821 i_stdlib (i_stdlib.U):
2822 This variable conditionally defines the I_STDLIB symbol, which
2823 indicates to the C program that <stdlib.h> exists and should
2826 i_string (i_string.U):
2827 This variable conditionally defines the I_STRING symbol, which
2828 indicates that <string.h> should be included rather than <strings.h>.
2830 i_sunmath (i_sunmath.U):
2831 This variable conditionally defines the I_SUNMATH symbol, and indicates
2832 whether a C program should include <sunmath.h>.
2834 i_sysaccess (i_sysaccess.U):
2835 This variable conditionally defines the I_SYS_ACCESS symbol,
2836 and indicates whether a C program should include <sys/access.h>.
2838 i_sysdir (i_sysdir.U):
2839 This variable conditionally defines the I_SYS_DIR symbol, and indicates
2840 whether a C program should include <sys/dir.h>.
2842 i_sysfile (i_sysfile.U):
2843 This variable conditionally defines the I_SYS_FILE symbol, and indicates
2844 whether a C program should include <sys/file.h> to get R_OK and friends.
2846 i_sysfilio (i_sysioctl.U):
2847 This variable conditionally defines the I_SYS_FILIO symbol, which
2848 indicates to the C program that <sys/filio.h> exists and should
2849 be included in preference to <sys/ioctl.h>.
2852 This variable conditionally defines I_SYS_IN, which indicates
2853 to the C program that it should include <sys/in.h> instead of
2856 i_sysioctl (i_sysioctl.U):
2857 This variable conditionally defines the I_SYS_IOCTL symbol, which
2858 indicates to the C program that <sys/ioctl.h> exists and should
2861 i_syslog (i_syslog.U):
2862 This variable conditionally defines the I_SYSLOG symbol,
2863 and indicates whether a C program should include <syslog.h>.
2865 i_sysmman (i_sysmman.U):
2866 This variable conditionally defines the I_SYS_MMAN symbol, and
2867 indicates whether a C program should include <sys/mman.h>.
2869 i_sysmode (i_sysmode.U):
2870 This variable conditionally defines the I_SYSMODE symbol,
2871 and indicates whether a C program should include <sys/mode.h>.
2873 i_sysmount (i_sysmount.U):
2874 This variable conditionally defines the I_SYSMOUNT symbol,
2875 and indicates whether a C program should include <sys/mount.h>.
2877 i_sysndir (i_sysndir.U):
2878 This variable conditionally defines the I_SYS_NDIR symbol, and indicates
2879 whether a C program should include <sys/ndir.h>.
2881 i_sysparam (i_sysparam.U):
2882 This variable conditionally defines the I_SYS_PARAM symbol, and indicates
2883 whether a C program should include <sys/param.h>.
2885 i_sysresrc (i_sysresrc.U):
2886 This variable conditionally defines the I_SYS_RESOURCE symbol,
2887 and indicates whether a C program should include <sys/resource.h>.
2889 i_syssecrt (i_syssecrt.U):
2890 This variable conditionally defines the I_SYS_SECURITY symbol,
2891 and indicates whether a C program should include <sys/security.h>.
2893 i_sysselct (i_sysselct.U):
2894 This variable conditionally defines I_SYS_SELECT, which indicates
2895 to the C program that it should include <sys/select.h> in order to
2896 get the definition of struct timeval.
2898 i_syssockio (i_sysioctl.U):
2899 This variable conditionally defines I_SYS_SOCKIO to indicate to the
2900 C program that socket ioctl codes may be found in <sys/sockio.h>
2901 instead of <sys/ioctl.h>.
2903 i_sysstat (i_sysstat.U):
2904 This variable conditionally defines the I_SYS_STAT symbol,
2905 and indicates whether a C program should include <sys/stat.h>.
2907 i_sysstatfs (i_sysstatfs.U):
2908 This variable conditionally defines the I_SYSSTATFS symbol,
2909 and indicates whether a C program should include <sys/statfs.h>.
2911 i_sysstatvfs (i_sysstatvfs.U):
2912 This variable conditionally defines the I_SYSSTATVFS symbol,
2913 and indicates whether a C program should include <sys/statvfs.h>.
2915 i_systime (i_time.U):
2916 This variable conditionally defines I_SYS_TIME, which indicates
2917 to the C program that it should include <sys/time.h>.
2919 i_systimek (i_time.U):
2920 This variable conditionally defines I_SYS_TIME_KERNEL, which
2921 indicates to the C program that it should include <sys/time.h>
2922 with KERNEL defined.
2924 i_systimes (i_systimes.U):
2925 This variable conditionally defines the I_SYS_TIMES symbol, and indicates
2926 whether a C program should include <sys/times.h>.
2928 i_systypes (i_systypes.U):
2929 This variable conditionally defines the I_SYS_TYPES symbol,
2930 and indicates whether a C program should include <sys/types.h>.
2932 i_sysuio (i_sysuio.U):
2933 This variable conditionally defines the I_SYSUIO symbol, and indicates
2934 whether a C program should include <sys/uio.h>.
2936 i_sysun (i_sysun.U):
2937 This variable conditionally defines I_SYS_UN, which indicates
2938 to the C program that it should include <sys/un.h> to get UNIX
2939 domain socket definitions.
2941 i_sysutsname (i_sysutsname.U):
2942 This variable conditionally defines the I_SYSUTSNAME symbol,
2943 and indicates whether a C program should include <sys/utsname.h>.
2945 i_sysvfs (i_sysvfs.U):
2946 This variable conditionally defines the I_SYSVFS symbol,
2947 and indicates whether a C program should include <sys/vfs.h>.
2949 i_syswait (i_syswait.U):
2950 This variable conditionally defines I_SYS_WAIT, which indicates
2951 to the C program that it should include <sys/wait.h>.
2953 i_termio (i_termio.U):
2954 This variable conditionally defines the I_TERMIO symbol, which
2955 indicates to the C program that it should include <termio.h> rather
2958 i_termios (i_termio.U):
2959 This variable conditionally defines the I_TERMIOS symbol, which
2960 indicates to the C program that the POSIX <termios.h> file is
2964 This variable conditionally defines I_TIME, which indicates
2965 to the C program that it should include <time.h>.
2967 i_unistd (i_unistd.U):
2968 This variable conditionally defines the I_UNISTD symbol, and indicates
2969 whether a C program should include <unistd.h>.
2971 i_ustat (i_ustat.U):
2972 This variable conditionally defines the I_USTAT symbol, and indicates
2973 whether a C program should include <ustat.h>.
2975 i_utime (i_utime.U):
2976 This variable conditionally defines the I_UTIME symbol, and indicates
2977 whether a C program should include <utime.h>.
2979 i_values (i_values.U):
2980 This variable conditionally defines the I_VALUES symbol, and indicates
2981 whether a C program may include <values.h> to get symbols like MAXLONG
2984 i_varargs (i_varhdr.U):
2985 This variable conditionally defines I_VARARGS, which indicates
2986 to the C program that it should include <varargs.h>.
2988 i_varhdr (i_varhdr.U):
2989 Contains the name of the header to be included to get va_dcl definition.
2990 Typically one of varargs.h or stdarg.h.
2992 i_vfork (i_vfork.U):
2993 This variable conditionally defines the I_VFORK symbol, and indicates
2994 whether a C program should include vfork.h.
2996 ignore_versioned_solibs (libs.U):
2997 This variable should be non-empty if non-versioned shared
2998 libraries (libfoo.so.x.y) are to be ignored (because they
2999 cannot be linked against).
3001 inc_version_list (inc_version_list.U):
3002 This variable specifies the list of subdirectories in over
3003 which perl.c:incpush() and lib/lib.pm will automatically
3004 search when adding directories to @INC. The elements in
3005 the list are separated by spaces. This is only useful
3006 if you have a perl library directory tree structured like the
3007 default one. See INSTALL for how this works. The versioned
3008 site_perl directory was introduced in 5.005, so that is the
3009 lowest possible value.
3011 inc_version_list_init (inc_version_list.U):
3012 This variable holds the same list as inc_version_list, but
3013 each item is enclosed in double quotes and separated by commas,
3014 suitable for use in the PERL_INC_VERSION_LIST initialization.
3017 This variable must preceed the normal include path to get hte
3018 right one, as in "$incpath/usr/include" or "$incpath/usr/lib".
3019 Value can be "" or "/bsd43" on mips.
3022 This variable is defined but not used by Configure.
3023 The value is a plain '' and is not useful.
3025 installarchlib (archlib.U):
3026 This variable is really the same as archlibexp but may differ on
3027 those systems using AFS. For extra portability, only this variable
3028 should be used in makefiles.
3031 This variable is the same as binexp unless AFS is running in which case
3032 the user is explicitely prompted for it. This variable should always
3033 be used in your makefiles for maximum portability.
3035 installman1dir (man1dir.U):
3036 This variable is really the same as man1direxp, unless you are using
3037 AFS in which case it points to the read/write location whereas
3038 man1direxp only points to the read-only access location. For extra
3039 portability, you should only use this variable within your makefiles.
3041 installman3dir (man3dir.U):
3042 This variable is really the same as man3direxp, unless you are using
3043 AFS in which case it points to the read/write location whereas
3044 man3direxp only points to the read-only access location. For extra
3045 portability, you should only use this variable within your makefiles.
3047 installprefix (installprefix.U):
3048 This variable holds the name of the directory below which
3049 "make install" will install the package. For most users, this
3050 is the same as prefix. However, it is useful for
3051 installing the software into a different (usually temporary)
3052 location after which it can be bundled up and moved somehow
3053 to the final location specified by prefix.
3055 installprefixexp (installprefix.U):
3056 This variable holds the full absolute path of installprefix
3057 with all ~-expansion done.
3059 installprivlib (privlib.U):
3060 This variable is really the same as privlibexp but may differ on
3061 those systems using AFS. For extra portability, only this variable
3062 should be used in makefiles.
3064 installscript (scriptdir.U):
3065 This variable is usually the same as scriptdirexp, unless you are on
3066 a system running AFS, in which case they may differ slightly. You
3067 should always use this variable within your makefiles for portability.
3069 installsitearch (sitearch.U):
3070 This variable is really the same as sitearchexp but may differ on
3071 those systems using AFS. For extra portability, only this variable
3072 should be used in makefiles.
3074 installsitebin (sitebin.U):
3075 This variable is usually the same as sitebinexp, unless you are on
3076 a system running AFS, in which case they may differ slightly. You
3077 should always use this variable within your makefiles for portability.
3079 installsitelib (sitelib.U):
3080 This variable is really the same as sitelibexp but may differ on
3081 those systems using AFS. For extra portability, only this variable
3082 should be used in makefiles.
3084 installstyle (installstyle.U):
3085 This variable describes the "style" of the perl installation.
3086 This is intended to be useful for tools that need to
3087 manipulate entire perl distributions. Perl itself doesn't use
3088 this to find its libraries -- the library directories are
3089 stored directly in Config.pm. Currently, there are only two
3090 styles: "lib" and "lib/perl5". The default library locations
3091 (e.g. privlib, sitelib) are either $prefix/lib or
3092 $prefix/lib/perl5. The former is useful if $prefix is a
3093 directory dedicated to perl (e.g. /opt/perl), while the latter
3094 is useful if $prefix is shared by many packages, e.g. if
3097 This may later be extended to include other information, so
3098 be careful with pattern-matching on the results.
3100 For compatibility with perl5.005 and earlier, the default
3101 setting is based on whether or not $prefix contains the string
3104 installusrbinperl (instubperl.U):
3105 This variable tells whether Perl should be installed also as
3106 /usr/bin/perl in addition to
3109 installvendorarch (vendorarch.U):
3110 This variable is really the same as vendorarchexp but may differ on
3111 those systems using AFS. For extra portability, only this variable
3112 should be used in makefiles.
3114 installvendorbin (vendorbin.U):
3115 This variable is really the same as vendorbinexp but may differ on
3116 those systems using AFS. For extra portability, only this variable
3117 should be used in makefiles.
3119 installvendorlib (vendorlib.U):
3120 This variable is really the same as vendorlibexp but may differ on
3121 those systems using AFS. For extra portability, only this variable
3122 should be used in makefiles.
3124 intsize (intsize.U):
3125 This variable contains the value of the INTSIZE symbol, which
3126 indicates to the C program how many bytes there are in an int.
3128 issymlink (issymlink.U):
3129 This variable holds the test command to test for a symbolic link
3130 (if they are supported). Typical values include 'test -h' and
3133 ivdformat (perlxvf.U):
3134 This variable contains the format string used for printing
3135 a Perl IV as a signed decimal integer.
3138 This variable is the size of an IV in bytes.
3141 This variable contains the C type used for Perl's IV.
3143 known_extensions (Extensions.U):
3144 This variable holds a list of all XS extensions included in
3148 This variable is defined but not used by Configure.
3149 The value is a plain '' and is not useful.
3152 This variable indicates the program to be used to link
3153 libraries for dynamic loading. On some systems, it is 'ld'.
3154 On ELF systems, it should be $cc. Mostly, we'll try to respect
3155 the hint file setting.
3157 lddlflags (dlsrc.U):
3158 This variable contains any special flags that might need to be
3159 passed to $ld to create a shared library suitable for dynamic
3160 loading. It is up to the makefile to use it. For hpux, it
3161 should be '-b'. For sunos 4.1, it is empty.
3163 ldflags (ccflags.U):
3164 This variable contains any additional C loader flags desired by
3165 the user. It is up to the Makefile to use this.
3167 ldflags_uselargefiles (uselfs.U):
3168 This variable contains the loader flags needed by large file builds
3169 and added to ldflags by hints files.
3171 ldlibpthname (libperl.U):
3172 This variable holds the name of the shared library
3173 search path, often LD_LIBRARY_PATH. To get an empty
3174 string, the hints file must set this to 'none'.
3177 This variable is used internally by Configure to determine the
3178 full pathname (if any) of the less program. After Configure runs,
3179 the value is reset to a plain "less" and is not useful.
3182 This is an old synonym for _a.
3185 This variable contains the location of the C library.
3187 libperl (libperl.U):
3188 The perl executable is obtained by linking perlmain.c with
3189 libperl, any static extensions (usually just DynaLoader),
3190 and any other libraries needed on this system. libperl
3191 is usually libperl.a, but can also be libperl.so.xxx if
3192 the user wishes to build a perl executable with a shared
3196 This variable holds the general path (space-separated) used to find
3197 libraries. It is intended to be used by other units.
3200 This variable holds the additional libraries we want to use.
3201 It is up to the Makefile to deal with it. The list can be empty.
3204 This variable holds the directory names aka dirnames of the libraries
3205 we found and accepted, duplicates are removed.
3208 This variable holds the filenames aka basenames of the libraries
3209 we found and accepted.
3212 This variable holds the full pathnames of the libraries
3213 we found and accepted.
3216 This variable holds the directory names probed for libraries.
3218 libswanted (Myinit.U):
3219 This variable holds a list of all the libraries we want to
3220 search. The order is chosen to pick up the c library
3221 ahead of ucb or bsd libraries for SVR4.
3223 libswanted_uselargefiles (uselfs.U):
3224 This variable contains the libraries needed by large file builds
3225 and added to ldflags by hints files. It is a space separated list
3226 of the library names without the "lib" prefix or any suffix, just
3230 This variable is defined but not used by Configure.
3231 The value is a plain '' and is not useful.
3234 This variable is defined but not used by Configure.
3235 The value is a plain '' and is not useful.
3237 lkflags (ccflags.U):
3238 This variable contains any additional C partial linker flags desired by
3239 the user. It is up to the Makefile to use this.
3242 This variable is used internally by Configure to determine the
3243 full pathname (if any) of the ln program. After Configure runs,
3244 the value is reset to a plain "ln" and is not useful.
3247 This variable holds the name of the command to make
3248 symbolic links (if they are supported). It can be used
3249 in the Makefile. It is either 'ln -s' or 'ln'
3251 localtime_r_proto (d_localtime_r.U):
3252 This variable encodes the prototype of localtime_r.
3253 It is zero if d_localtime_r is undef, and one of the
3254 REENTRANT_PROTO_T_ABC macros of reentr.h if d_localtime_r
3257 locincpth (ccflags.U):
3258 This variable contains a list of additional directories to be
3259 searched by the compiler. The appropriate '-I' directives will
3260 be added to ccflags. This is intended to simplify setting
3261 local directories from the Configure command line.
3262 It's not much, but it parallels the loclibpth stuff in libpth.U.
3264 loclibpth (libpth.U):
3265 This variable holds the paths (space-separated) used to find local
3266 libraries. It is prepended to libpth, and is intended to be easily
3267 set from the command line.
3269 longdblsize (d_longdbl.U):
3270 This variable contains the value of the LONG_DOUBLESIZE symbol, which
3271 indicates to the C program how many bytes there are in a long double,
3272 if this system supports long doubles.
3274 longlongsize (d_longlong.U):
3275 This variable contains the value of the LONGLONGSIZE symbol, which
3276 indicates to the C program how many bytes there are in a long long,
3277 if this system supports long long.
3279 longsize (intsize.U):
3280 This variable contains the value of the LONGSIZE symbol, which
3281 indicates to the C program how many bytes there are in a long.
3284 This variable is defined but not used by Configure.
3285 The value is a plain '' and is not useful.
3288 This variable is defined but not used by Configure.
3289 The value is a plain '' and is not useful.
3292 This variable is used internally by Configure to determine the
3293 full pathname (if any) of the ls program. After Configure runs,
3294 the value is reset to a plain "ls" and is not useful.
3296 lseeksize (lseektype.U):
3297 This variable defines lseektype to be something like off_t, long,
3298 or whatever type is used to declare lseek offset's type in the
3299 kernel (which also appears to be lseek's return type).
3301 lseektype (lseektype.U):
3302 This variable defines lseektype to be something like off_t, long,
3303 or whatever type is used to declare lseek offset's type in the
3304 kernel (which also appears to be lseek's return type).
3307 This variable is defined but not used by Configure.
3308 The value is a plain '' and is not useful.
3311 This variable is defined but not used by Configure.
3312 The value is a plain '' and is not useful.
3315 This variable is used internally by Configure to determine the
3316 full pathname (if any) of the make program. After Configure runs,
3317 the value is reset to a plain "make" and is not useful.
3319 make_set_make (make.U):
3320 Some versions of 'make' set the variable MAKE. Others do not.
3321 This variable contains the string to be included in Makefile.SH
3322 so that MAKE is set if needed, and not if not needed.
3323 Possible values are:
3325 make_set_make='#' # If your make program handles this for you,
3327 make_set_make="MAKE=$make" # if it doesn't.
3329 This uses a comment character to distinguish a
3330 'set' value (from a previous config.sh or Configure '-D' option)
3331 from an uncomputed value.
3333 mallocobj (mallocsrc.U):
3334 This variable contains the name of the malloc.o that this package
3335 generates, if that malloc.o is preferred over the system malloc.
3336 Otherwise the value is null. This variable is intended for generating
3337 Makefiles. See mallocsrc.
3339 mallocsrc (mallocsrc.U):
3340 This variable contains the name of the malloc.c that comes with
3341 the package, if that malloc.c is preferred over the system malloc.
3342 Otherwise the value is null. This variable is intended for generating
3345 malloctype (mallocsrc.U):
3346 This variable contains the kind of ptr returned by malloc and realloc.
3348 man1dir (man1dir.U):
3349 This variable contains the name of the directory in which manual
3350 source pages are to be put. It is the responsibility of the
3351 Makefile.SH to get the value of this into the proper command.
3352 You must be prepared to do the ~name expansion yourself.
3354 man1direxp (man1dir.U):
3355 This variable is the same as the man1dir variable, but is filename
3356 expanded at configuration time, for convenient use in makefiles.
3358 man1ext (man1dir.U):
3359 This variable contains the extension that the manual page should
3360 have: one of 'n', 'l', or '1'. The Makefile must supply the '.'.
3363 man3dir (man3dir.U):
3364 This variable contains the name of the directory in which manual
3365 source pages are to be put. It is the responsibility of the
3366 Makefile.SH to get the value of this into the proper command.
3367 You must be prepared to do the ~name expansion yourself.
3369 man3direxp (man3dir.U):
3370 This variable is the same as the man3dir variable, but is filename
3371 expanded at configuration time, for convenient use in makefiles.
3373 man3ext (man3dir.U):
3374 This variable contains the extension that the manual page should
3375 have: one of 'n', 'l', or '3'. The Makefile must supply the '.'.
3378 mips_type (usrinc.U):
3379 This variable holds the environment type for the mips system.
3380 Possible values are "BSD 4.3" and "System V".
3383 This variable is used internally by Configure to determine the
3384 full pathname (if any) of the mkdir program. After Configure runs,
3385 the value is reset to a plain "mkdir" and is not useful.
3387 mmaptype (d_mmap.U):
3388 This symbol contains the type of pointer returned by mmap()
3389 (and simultaneously the type of the first argument).
3390 It can be 'void *' or 'caddr_t'.
3392 modetype (modetype.U):
3393 This variable defines modetype to be something like mode_t,
3394 int, unsigned short, or whatever type is used to declare file
3395 modes for system calls.
3398 This variable is used internally by Configure to determine the
3399 full pathname (if any) of the more program. After Configure runs,
3400 the value is reset to a plain "more" and is not useful.
3402 multiarch (multiarch.U):
3403 This variable conditionally defines the MULTIARCH symbol
3404 which signifies the presence of multiplatform files.
3405 This is normally set by hints files.
3408 This variable is defined but not used by Configure.
3409 The value is a plain '' and is not useful.
3411 myarchname (archname.U):
3412 This variable holds the architecture name computed by Configure in
3413 a previous run. It is not intended to be perused by any user and
3414 should never be set in a hint file.
3416 mydomain (myhostname.U):
3417 This variable contains the eventual value of the MYDOMAIN symbol,
3418 which is the domain of the host the program is going to run on.
3419 The domain must be appended to myhostname to form a complete host name.
3420 The dot comes with mydomain, and need not be supplied by the program.
3422 myhostname (myhostname.U):
3423 This variable contains the eventual value of the MYHOSTNAME symbol,
3424 which is the name of the host the program is going to run on.
3425 The domain is not kept with hostname, but must be gotten from mydomain.
3426 The dot comes with mydomain, and need not be supplied by the program.
3428 myuname (Oldconfig.U):
3429 The output of 'uname -a' if available, otherwise the hostname. On Xenix,
3430 pseudo variables assignments in the output are stripped, thank you. The
3431 whole thing is then lower-cased.
3434 This variable contains the '-n' flag if that is what causes the echo
3435 command to suppress newline. Otherwise it is null. Correct usage is
3436 $echo $n "prompt for a question: $c".
3438 need_va_copy (need_va_copy.U):
3439 This symbol, if defined, indicates that the system stores
3440 the variable argument list datatype, va_list, in a format
3441 that cannot be copied by simple assignment, so that some
3442 other means must be used when copying is required.
3443 As such systems vary in their provision (or non-provision)
3444 of copying mechanisms, handy.h defines a platform-
3445 independent macro, Perl_va_copy(src, dst), to do the job.
3447 netdb_hlen_type (netdbtype.U):
3448 This variable holds the type used for the 2nd argument to
3449 gethostbyaddr(). Usually, this is int or size_t or unsigned.
3450 This is only useful if you have gethostbyaddr(), naturally.
3452 netdb_host_type (netdbtype.U):
3453 This variable holds the type used for the 1st argument to
3454 gethostbyaddr(). Usually, this is char * or void *, possibly
3455 with or without a const prefix.
3456 This is only useful if you have gethostbyaddr(), naturally.
3458 netdb_name_type (netdbtype.U):
3459 This variable holds the type used for the argument to
3460 gethostbyname(). Usually, this is char * or const char *.
3461 This is only useful if you have gethostbyname(), naturally.
3463 netdb_net_type (netdbtype.U):
3464 This variable holds the type used for the 1st argument to
3465 getnetbyaddr(). Usually, this is int or long.
3466 This is only useful if you have getnetbyaddr(), naturally.
3469 This variable is used internally by Configure to determine the
3470 full pathname (if any) of the nm program. After Configure runs,
3471 the value is reset to a plain "nm" and is not useful.
3474 This variable holds the options that may be necessary for nm.
3476 nm_so_opt (usenm.U):
3477 This variable holds the options that may be necessary for nm
3478 to work on a shared library but that can not be used on an
3479 archive library. Currently, this is only used by Linux, where
3480 nm --dynamic is *required* to get symbols from an ELF library which
3481 has been stripped, but nm --dynamic is *fatal* on an archive library.
3482 Maybe Linux should just always set usenm=false.
3484 nonxs_ext (Extensions.U):
3485 This variable holds a list of all non-xs extensions included
3486 in the package. All of them will be built.
3489 This variable is used internally by Configure to determine the
3490 full pathname (if any) of the nroff program. After Configure runs,
3491 the value is reset to a plain "nroff" and is not useful.
3493 nvEUformat (perlxvf.U):
3494 This variable contains the format string used for printing
3495 a Perl NV using %E-ish floating point format.
3497 nvFUformat (perlxvf.U):
3498 This variable confains the format string used for printing
3499 a Perl NV using %F-ish floating point format.
3501 nvGUformat (perlxvf.U):
3502 This variable contains the format string used for printing
3503 a Perl NV using %G-ish floating point format.
3505 nv_preserves_uv_bits (perlxv.U):
3506 This variable indicates how many of bits type uvtype
3507 a variable nvtype can preserve.
3509 nveformat (perlxvf.U):
3510 This variable contains the format string used for printing
3511 a Perl NV using %e-ish floating point format.
3513 nvfformat (perlxvf.U):
3514 This variable confains the format string used for printing
3515 a Perl NV using %f-ish floating point format.
3517 nvgformat (perlxvf.U):
3518 This variable contains the format string used for printing
3519 a Perl NV using %g-ish floating point format.
3522 This variable is the size of an NV in bytes.
3525 This variable contains the C type used for Perl's NV.
3527 o_nonblock (nblock_io.U):
3528 This variable bears the symbol value to be used during open() or fcntl()
3529 to turn on non-blocking I/O for a file descriptor. If you wish to switch
3530 between blocking and non-blocking, you may try ioctl(FIOSNBIO) instead,
3531 but that is only supported by some devices.
3534 This is an old synonym for _o.
3536 old_pthread_create_joinable (d_pthrattrj.U):
3537 This variable defines the constant to use for creating joinable
3538 (aka undetached) pthreads. Unused if pthread.h defines
3539 PTHREAD_CREATE_JOINABLE. If used, possible values are
3540 PTHREAD_CREATE_UNDETACHED and __UNDETACHED.
3542 optimize (ccflags.U):
3543 This variable contains any optimizer/debugger flag that should be used.
3544 It is up to the Makefile to use it.
3546 orderlib (orderlib.U):
3547 This variable is "true" if the components of libraries must be ordered
3548 (with `lorder $* | tsort`) before placing them in an archive. Set to
3549 "false" if ranlib or ar can generate random libraries.
3551 osname (Oldconfig.U):
3552 This variable contains the operating system name (e.g. sunos,
3553 solaris, hpux, etc.). It can be useful later on for setting
3554 defaults. Any spaces are replaced with underscores. It is set
3555 to a null string if we can't figure it out.
3557 osvers (Oldconfig.U):
3558 This variable contains the operating system version (e.g.
3559 4.1.3, 5.2, etc.). It is primarily used for helping select
3560 an appropriate hints file, but might be useful elsewhere for
3561 setting defaults. It is set to '' if we can't figure it out.
3562 We try to be flexible about how much of the version number
3563 to keep, e.g. if 4.1.1, 4.1.2, and 4.1.3 are essentially the
3564 same for this package, hints files might just be os_4.0 or
3565 os_4.1, etc., not keeping separate files for each little release.
3567 otherlibdirs (otherlibdirs.U):
3568 This variable contains a colon-separated set of paths for the perl
3569 binary to search for additional library files or modules.
3570 These directories will be tacked to the end of @INC.
3571 Perl will automatically search below each path for version-
3572 and architecture-specific directories. See inc_version_list
3574 A value of ' ' means 'none' and is used to preserve this value
3575 for the next run through Configure.
3577 package (package.U):
3578 This variable contains the name of the package being constructed.
3579 It is primarily intended for the use of later Configure units.
3582 This variable contains the name of the preferred pager on the system.
3583 Usual values are (the full pathnames of) more, less, pg, or cat.
3586 This variable contains a command that produces the text of the
3587 /etc/passwd file. This is normally "cat /etc/passwd", but can be
3588 "ypcat passwd" when NIS is used.
3589 On some systems, such as os390, there may be no equivalent
3590 command, in which case this variable is unset.
3592 patchlevel (patchlevel.U):
3593 The patchlevel level of this package.
3594 The value of patchlevel comes from the patchlevel.h file.
3595 In a version number such as 5.6.1, this is the "6".
3596 In patchlevel.h, this is referred to as "PERL_VERSION".
3599 This is an old synonym for p_ in Head.U, the character
3600 used to separate elements in the command shell search PATH.
3603 This variable contains the full path (if any) to a previously
3604 installed perl5.005 or later suitable for running the script
3605 to determine inc_version_list.
3608 This variable is defined but not used by Configure.
3609 The value is a plain '' and is not useful.
3611 perl_patchlevel (patchlevel.U):
3612 This is the Perl patch level, a numeric change identifier,
3613 as defined by whichever source code maintenance system
3614 is used to maintain the patches; currently Perforce.
3615 It does not correlate with the Perl version numbers or
3616 the maintenance versus development dichotomy except
3617 by also being increasing.
3619 perladmin (perladmin.U):
3620 Electronic mail address of the perl5 administrator.
3623 The list of libraries needed by Perl only (any libraries needed
3624 by extensions only will by dropped, if using dynamic loading).
3626 perlpath (perlpath.U):
3627 This variable contains the eventual value of the PERLPATH symbol,
3628 which contains the name of the perl interpreter to be used in
3629 shell scripts and in the "eval 'exec'" idiom. This variable is
3630 not necessarily the pathname of the file containing the perl
3631 interpreter; you must append the executable extension (_exe) if
3632 it is not already present. Note that Perl code that runs during
3633 the Perl build process cannot reference this variable, as Perl
3634 may not have been installed, or even if installed, may be a
3635 different version of Perl.
3638 This variable is used internally by Configure to determine the
3639 full pathname (if any) of the pg program. After Configure runs,
3640 the value is reset to a plain "pg" and is not useful.
3642 phostname (myhostname.U):
3643 This variable contains the eventual value of the PHOSTNAME symbol,
3644 which is a command that can be fed to popen() to get the host name.
3645 The program should probably not presume that the domain is or isn't
3648 pidtype (pidtype.U):
3649 This variable defines PIDTYPE to be something like pid_t, int,
3650 ushort, or whatever type is used to declare process ids in the kernel.
3653 Holds the private path used by Configure to find out the libraries.
3654 Its value is prepend to libpth. This variable takes care of special
3655 machines, like the mips. Usually, it should be empty.
3657 pm_apiversion (xs_apiversion.U):
3658 This variable contains the version of the oldest perl
3659 compatible with the present perl. (That is, pure perl modules
3660 written for $pm_apiversion will still work for the current
3661 version). perl.c:incpush() and lib/lib.pm will automatically
3662 search in $sitelib for older directories across major versions
3663 back to pm_apiversion. This is only useful if you have a perl
3664 library directory tree structured like the default one. The
3665 versioned site_perl library was introduced in 5.005, so that's
3666 the default setting for this variable. It's hard to imagine
3667 it changing before Perl6. It is included here for symmetry
3668 with xs_apiveprsion -- the searching algorithms will
3669 (presumably) be similar.
3670 See the INSTALL file for how this works.
3673 This variable is defined but not used by Configure.
3674 The value is a plain '' and is not useful.
3677 This variable is defined but not used by Configure.
3678 The value is a plain '' and is not useful.
3681 This variable holds the name of the directory below which the
3682 user will install the package. Usually, this is /usr/local, and
3683 executables go in /usr/local/bin, library stuff in /usr/local/lib,
3684 man pages in /usr/local/man, etc. It is only used to set defaults
3685 for things in bin.U, mansrc.U, privlib.U, or scriptdir.U.
3687 prefixexp (prefix.U):
3688 This variable holds the full absolute path of the directory below
3689 which the user will install the package. Derived from prefix.
3691 privlib (privlib.U):
3692 This variable contains the eventual value of the PRIVLIB symbol,
3693 which is the name of the private library for this package. It may
3694 have a ~ on the front. It is up to the makefile to eventually create
3695 this directory while performing installation (with ~ substitution).
3697 privlibexp (privlib.U):
3698 This variable is the ~name expanded version of privlib, so that you
3699 may use it directly in Makefiles or shell scripts.
3701 procselfexe (d_procselfexe.U):
3702 If d_procselfexe is defined, $procselfexe is the filename
3703 of the symbolic link pointing to the absolute pathname of
3704 the executing program.
3706 prototype (prototype.U):
3707 This variable holds the eventual value of CAN_PROTOTYPE, which
3708 indicates the C compiler can handle funciton prototypes.
3710 ptrsize (ptrsize.U):
3711 This variable contains the value of the PTRSIZE symbol, which
3712 indicates to the C program how many bytes there are in a pointer.
3714 quadkind (quadtype.U):
3715 This variable, if defined, encodes the type of a quad:
3716 1 = int, 2 = long, 3 = long long, 4 = int64_t.
3718 quadtype (quadtype.U):
3719 This variable defines Quad_t to be something like long, int,
3720 long long, int64_t, or whatever type is used for 64-bit integers.
3722 randbits (randfunc.U):
3723 Indicates how many bits are produced by the function used to
3724 generate normalized random numbers.
3726 randfunc (randfunc.U):
3727 Indicates the name of the random number function to use.
3728 Values include drand48, random, and rand. In C programs,
3729 the 'Drand01' macro is defined to generate uniformly distributed
3730 random numbers over the range [0., 1.[ (see drand01 and nrand).
3732 random_r_proto (d_random_r.U):
3733 This variable encodes the prototype of random_r.
3734 It is zero if d_random_r is undef, and one of the
3735 REENTRANT_PROTO_T_ABC macros of reentr.h if d_random_r
3738 randseedtype (randfunc.U):
3739 Indicates the type of the argument of the seedfunc.
3741 ranlib (orderlib.U):
3742 This variable is set to the pathname of the ranlib program, if it is
3743 needed to generate random libraries. Set to ":" if ar can generate
3744 random libraries or if random libraries are not supported
3746 rd_nodata (nblock_io.U):
3747 This variable holds the return code from read() when no data is
3748 present. It should be -1, but some systems return 0 when O_NDELAY is
3749 used, which is a shame because you cannot make the difference between
3750 no data and an EOF.. Sigh!
3752 readdir64_r_proto (d_readdir64_r.U):
3753 This variable encodes the prototype of readdir64_r.
3754 It is zero if d_readdir64_r is undef, and one of the
3755 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir64_r
3758 readdir_r_proto (d_readdir_r.U):
3759 This variable encodes the prototype of readdir_r.
3760 It is zero if d_readdir_r is undef, and one of the
3761 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir_r
3764 revision (patchlevel.U):
3765 The value of revision comes from the patchlevel.h file.
3766 In a version number such as 5.6.1, this is the "5".
3767 In patchlevel.h, this is referred to as "PERL_REVISION".
3770 This variable is used internally by Configure to determine the
3771 full pathname (if any) of the rm program. After Configure runs,
3772 the value is reset to a plain "rm" and is not useful.
3775 This variable is defined but not used by Configure.
3776 The value is a plain '' and is not useful.
3779 This variable contains the command used by Configure
3780 to copy and execute a cross-compiled executable in the
3781 target host. Useful and available only during Perl build.
3782 Empty string '' if not cross-compiling.
3785 This variable contains 'true' or 'false' depending whether the
3786 nm extraction should be performed or not, according to the value
3787 of usenm and the flags on the Configure command line.
3789 sPRIEUldbl (longdblfio.U):
3790 This variable, if defined, contains the string used by stdio to
3791 format long doubles (format 'E') for output.
3792 The 'U' in the name is to separate this from sPRIeldbl so that even
3793 case-blind systems can see the difference.
3795 sPRIFUldbl (longdblfio.U):
3796 This variable, if defined, contains the string used by stdio to
3797 format long doubles (format 'F') for output.
3798 The 'U' in the name is to separate this from sPRIfldbl so that even
3799 case-blind systems can see the difference.
3801 sPRIGUldbl (longdblfio.U):
3802 This variable, if defined, contains the string used by stdio to
3803 format long doubles (format 'G') for output.
3804 The 'U' in the name is to separate this from sPRIgldbl so that even
3805 case-blind systems can see the difference.
3807 sPRIXU64 (quadfio.U):
3808 This variable, if defined, contains the string used by stdio to
3809 format 64-bit hExADECimAl numbers (format 'X') for output.
3810 The 'U' in the name is to separate this from sPRIx64 so that even
3811 case-blind systems can see the difference.
3813 sPRId64 (quadfio.U):
3814 This variable, if defined, contains the string used by stdio to
3815 format 64-bit decimal numbers (format 'd') for output.
3817 sPRIeldbl (longdblfio.U):
3818 This variable, if defined, contains the string used by stdio to
3819 format long doubles (format 'e') for output.
3821 sPRIfldbl (longdblfio.U):
3822 This variable, if defined, contains the string used by stdio to
3823 format long doubles (format 'f') for output.
3825 sPRIgldbl (longdblfio.U):
3826 This variable, if defined, contains the string used by stdio to
3827 format long doubles (format 'g') for output.
3829 sPRIi64 (quadfio.U):
3830 This variable, if defined, contains the string used by stdio to
3831 format 64-bit decimal numbers (format 'i') for output.
3833 sPRIo64 (quadfio.U):
3834 This variable, if defined, contains the string used by stdio to
3835 format 64-bit octal numbers (format 'o') for output.
3837 sPRIu64 (quadfio.U):
3838 This variable, if defined, contains the string used by stdio to
3839 format 64-bit unsigned decimal numbers (format 'u') for output.
3841 sPRIx64 (quadfio.U):
3842 This variable, if defined, contains the string used by stdio to
3843 format 64-bit hexadecimal numbers (format 'x') for output.
3845 sSCNfldbl (longdblfio.U):
3846 This variable, if defined, contains the string used by stdio to
3847 format long doubles (format 'f') for input.
3849 sched_yield (d_pthread_y.U):
3850 This variable defines the way to yield the execution
3851 of the current thread.
3853 scriptdir (scriptdir.U):
3854 This variable holds the name of the directory in which the user wants
3855 to put publicly scripts for the package in question. It is either
3856 the same directory as for binaries, or a special one that can be
3857 mounted across different architectures, like /usr/share. Programs
3858 must be prepared to deal with ~name expansion.
3860 scriptdirexp (scriptdir.U):
3861 This variable is the same as scriptdir, but is filename expanded
3862 at configuration time, for programs not wanting to bother with it.
3865 This variable is used internally by Configure to determine the
3866 full pathname (if any) of the sed program. After Configure runs,
3867 the value is reset to a plain "sed" and is not useful.
3869 seedfunc (randfunc.U):
3870 Indicates the random number generating seed function.
3871 Values include srand48, srandom, and srand.
3873 selectminbits (selectminbits.U):
3874 This variable holds the minimum number of bits operated by select.
3875 That is, if you do select(n, ...), how many bits at least will be
3876 cleared in the masks if some activity is detected. Usually this
3877 is either n or 32*ceil(n/32), especially many little-endians do
3878 the latter. This is only useful if you have select(), naturally.
3880 selecttype (selecttype.U):
3881 This variable holds the type used for the 2nd, 3rd, and 4th
3882 arguments to select. Usually, this is 'fd_set *', if HAS_FD_SET
3883 is defined, and 'int *' otherwise. This is only useful if you
3884 have select(), naturally.
3887 This variable is defined but not used by Configure.
3888 The value is a plain '' and is not useful.
3890 setgrent_r_proto (d_setgrent_r.U):
3891 This variable encodes the prototype of setgrent_r.
3892 It is zero if d_setgrent_r is undef, and one of the
3893 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setgrent_r
3896 sethostent_r_proto (d_sethostent_r.U):
3897 This variable encodes the prototype of sethostent_r.
3898 It is zero if d_sethostent_r is undef, and one of the
3899 REENTRANT_PROTO_T_ABC macros of reentr.h if d_sethostent_r
3902 setlocale_r_proto (d_setlocale_r.U):
3903 This variable encodes the prototype of setlocale_r.
3904 It is zero if d_setlocale_r is undef, and one of the
3905 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setlocale_r
3908 setnetent_r_proto (d_setnetent_r.U):
3909 This variable encodes the prototype of setnetent_r.
3910 It is zero if d_setnetent_r is undef, and one of the
3911 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setnetent_r
3914 setprotoent_r_proto (d_setprotoent_r.U):
3915 This variable encodes the prototype of setprotoent_r.
3916 It is zero if d_setprotoent_r is undef, and one of the
3917 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setprotoent_r
3920 setpwent_r_proto (d_setpwent_r.U):
3921 This variable encodes the prototype of setpwent_r.
3922 It is zero if d_setpwent_r is undef, and one of the
3923 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setpwent_r
3926 setservent_r_proto (d_setservent_r.U):
3927 This variable encodes the prototype of setservent_r.
3928 It is zero if d_setservent_r is undef, and one of the
3929 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setservent_r
3933 This variable contains the full pathname of the shell used
3934 on this system to execute Bourne shell scripts. Usually, this will be
3935 /bin/sh, though it's possible that some systems will have /bin/ksh,
3936 /bin/pdksh, /bin/ash, /bin/bash, or even something such as
3938 This unit comes before Options.U, so you can't set sh with a '-D'
3939 option, though you can override this (and startsh)
3940 with '-O -Dsh=/bin/whatever -Dstartsh=whatever'
3943 This variable is defined but not used by Configure.
3944 The value is a plain '' and is not useful.
3946 sharpbang (spitshell.U):
3947 This variable contains the string #! if this system supports that
3950 shmattype (d_shmat.U):
3951 This symbol contains the type of pointer returned by shmat().
3952 It can be 'void *' or 'char *'.
3954 shortsize (intsize.U):
3955 This variable contains the value of the SHORTSIZE symbol which
3956 indicates to the C program how many bytes there are in a short.
3958 shrpenv (libperl.U):
3959 If the user builds a shared libperl.so, then we need to tell the
3960 'perl' executable where it will be able to find the installed libperl.so.
3961 One way to do this on some systems is to set the environment variable
3962 LD_RUN_PATH to the directory that will be the final location of the
3963 shared libperl.so. The makefile can use this with something like
3964 $shrpenv $(CC) -o perl perlmain.o $libperl $libs
3966 shrpenv="env LD_RUN_PATH=$archlibexp/CORE"
3969 See the main perl Makefile.SH for actual working usage.
3970 Alternatively, we might be able to use a command line option such
3971 as -R $archlibexp/CORE (Solaris) or -Wl,-rpath
3972 $archlibexp/CORE (Linux).
3974 shsharp (spitshell.U):
3975 This variable tells further Configure units whether your sh can
3978 sig_count (sig_name.U):
3979 This variable holds a number larger than the largest valid
3980 signal number. This is usually the same as the NSIG macro.
3982 sig_name (sig_name.U):
3983 This variable holds the signal names, space separated. The leading
3984 SIG in signal name is removed. A ZERO is prepended to the
3985 list. This is currently not used.
3987 sig_name_init (sig_name.U):
3988 This variable holds the signal names, enclosed in double quotes and
3989 separated by commas, suitable for use in the SIG_NAME definition
3990 below. A "ZERO" is prepended to the list, and the list is
3991 terminated with a plain 0. The leading SIG in signal names
3992 is removed. See sig_num.
3994 sig_num (sig_name.U):
3995 This variable holds the signal numbers, space separated. A ZERO is
3996 prepended to the list (corresponding to the fake SIGZERO), and
3997 the list is terminated with a 0. Those numbers correspond to
3998 the value of the signal listed in the same place within the
4001 sig_num_init (sig_name.U):
4002 This variable holds the signal numbers, enclosed in double quotes and
4003 separated by commas, suitable for use in the SIG_NUM definition
4004 below. A "ZERO" is prepended to the list, and the list is
4005 terminated with a plain 0.
4007 sig_size (sig_name.U):
4008 This variable contains the number of elements of the sig_name
4009 and sig_num arrays, excluding the final NULL entry.
4011 signal_t (d_voidsig.U):
4012 This variable holds the type of the signal handler (void or int).
4014 sitearch (sitearch.U):
4015 This variable contains the eventual value of the SITEARCH symbol,
4016 which is the name of the private library for this package. It may
4017 have a ~ on the front. It is up to the makefile to eventually create
4018 this directory while performing installation (with ~ substitution).
4019 The standard distribution will put nothing in this directory.
4020 After perl has been installed, users may install their own local
4021 architecture-dependent modules in this directory with
4022 MakeMaker Makefile.PL
4023 or equivalent. See INSTALL for details.
4025 sitearchexp (sitearch.U):
4026 This variable is the ~name expanded version of sitearch, so that you
4027 may use it directly in Makefiles or shell scripts.
4029 sitebin (sitebin.U):
4030 This variable holds the name of the directory in which the user wants
4031 to put add-on publicly executable files for the package in question. It
4032 is most often a local directory such as /usr/local/bin. Programs using
4033 this variable must be prepared to deal with ~name substitution.
4034 The standard distribution will put nothing in this directory.
4035 After perl has been installed, users may install their own local
4036 executables in this directory with
4037 MakeMaker Makefile.PL
4038 or equivalent. See INSTALL for details.
4040 sitebinexp (sitebin.U):
4041 This is the same as the sitebin variable, but is filename expanded at
4042 configuration time, for use in your makefiles.
4044 sitelib (sitelib.U):
4045 This variable contains the eventual value of the SITELIB symbol,
4046 which is the name of the private library for this package. It may
4047 have a ~ on the front. It is up to the makefile to eventually create
4048 this directory while performing installation (with ~ substitution).
4049 The standard distribution will put nothing in this directory.
4050 After perl has been installed, users may install their own local
4051 architecture-independent modules in this directory with
4052 MakeMaker Makefile.PL
4053 or equivalent. See INSTALL for details.
4055 sitelib_stem (sitelib.U):
4056 This variable is $sitelibexp with any trailing version-specific component
4057 removed. The elements in inc_version_list (inc_version_list.U) can
4058 be tacked onto this variable to generate a list of directories to search.
4060 sitelibexp (sitelib.U):
4061 This variable is the ~name expanded version of sitelib, so that you
4062 may use it directly in Makefiles or shell scripts.
4064 siteprefix (siteprefix.U):
4065 This variable holds the full absolute path of the directory below
4066 which the user will install add-on packages.
4067 See INSTALL for usage and examples.
4069 siteprefixexp (siteprefix.U):
4070 This variable holds the full absolute path of the directory below
4071 which the user will install add-on packages. Derived from siteprefix.
4073 sizesize (sizesize.U):
4074 This variable contains the size of a sizetype in bytes.
4076 sizetype (sizetype.U):
4077 This variable defines sizetype to be something like size_t,
4078 unsigned long, or whatever type is used to declare length
4079 parameters for string functions.
4082 This variable is defined but not used by Configure.
4083 The value is a plain '' and is not useful.
4086 This variable is defined but not used by Configure.
4087 The value is a plain '' and is not useful.
4090 This variable holds the extension used to identify shared libraries
4091 (also known as shared objects) on the system. Usually set to 'so'.
4093 sockethdr (d_socket.U):
4094 This variable has any cpp '-I' flags needed for socket support.
4096 socketlib (d_socket.U):
4097 This variable has the names of any libraries needed for socket support.
4099 socksizetype (socksizetype.U):
4100 This variable holds the type used for the size argument
4101 for various socket calls like accept. Usual values include
4102 socklen_t, size_t, and int.
4105 This variable is used internally by Configure to determine the
4106 full pathname (if any) of the sort program. After Configure runs,
4107 the value is reset to a plain "sort" and is not useful.
4109 spackage (package.U):
4110 This variable contains the name of the package being constructed,
4111 with the first letter uppercased, i.e. suitable for starting
4114 spitshell (spitshell.U):
4115 This variable contains the command necessary to spit out a runnable
4116 shell on this system. It is either cat or a grep '-v' for # comments.
4118 srand48_r_proto (d_srand48_r.U):
4119 This variable encodes the prototype of srand48_r.
4120 It is zero if d_srand48_r is undef, and one of the
4121 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srand48_r
4124 srandom_r_proto (d_srandom_r.U):
4125 This variable encodes the prototype of srandom_r.
4126 It is zero if d_srandom_r is undef, and one of the
4127 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srandom_r
4131 This variable holds the path to the package source. It is up to
4132 the Makefile to use this variable and set VPATH accordingly to
4133 find the sources remotely.
4135 ssizetype (ssizetype.U):
4136 This variable defines ssizetype to be something like ssize_t,
4137 long or int. It is used by functions that return a count
4138 of bytes or an error condition. It must be a signed type.
4139 We will pick a type such that sizeof(SSize_t) == sizeof(Size_t).
4141 startperl (startperl.U):
4142 This variable contains the string to put on the front of a perl
4143 script to make sure (hopefully) that it runs with perl and not some
4144 shell. Of course, that leading line must be followed by the classical
4146 eval 'exec perl -S $0 ${1+"$@"}'
4147 if $running_under_some_shell;
4148 to guarantee perl startup should the shell execute the script. Note
4149 that this magic incatation is not understood by csh.
4151 startsh (startsh.U):
4152 This variable contains the string to put on the front of a shell
4153 script to make sure (hopefully) that it runs with sh and not some
4156 static_ext (Extensions.U):
4157 This variable holds a list of XS extension files we want to
4158 link statically into the package. It is used by Makefile.
4160 stdchar (stdchar.U):
4161 This variable conditionally defines STDCHAR to be the type of char
4162 used in stdio.h. It has the values "unsigned char" or "char".
4164 stdio_base (d_stdstdio.U):
4165 This variable defines how, given a FILE pointer, fp, to access the
4166 _base field (or equivalent) of stdio.h's FILE structure. This will
4167 be used to define the macro FILE_base(fp).
4169 stdio_bufsiz (d_stdstdio.U):
4170 This variable defines how, given a FILE pointer, fp, to determine
4171 the number of bytes store in the I/O buffer pointer to by the
4172 _base field (or equivalent) of stdio.h's FILE structure. This will
4173 be used to define the macro FILE_bufsiz(fp).
4175 stdio_cnt (d_stdstdio.U):
4176 This variable defines how, given a FILE pointer, fp, to access the
4177 _cnt field (or equivalent) of stdio.h's FILE structure. This will
4178 be used to define the macro FILE_cnt(fp).
4180 stdio_filbuf (d_stdstdio.U):
4181 This variable defines how, given a FILE pointer, fp, to tell
4182 stdio to refill its internal buffers (?). This will
4183 be used to define the macro FILE_filbuf(fp).
4185 stdio_ptr (d_stdstdio.U):
4186 This variable defines how, given a FILE pointer, fp, to access the
4187 _ptr field (or equivalent) of stdio.h's FILE structure. This will
4188 be used to define the macro FILE_ptr(fp).
4190 stdio_stream_array (stdio_streams.U):
4191 This variable tells the name of the array holding the stdio streams.
4192 Usual values include _iob, __iob, and __sF.
4194 strerror_r_proto (d_strerror_r.U):
4195 This variable encodes the prototype of strerror_r.
4196 It is zero if d_strerror_r is undef, and one of the
4197 REENTRANT_PROTO_T_ABC macros of reentr.h if d_strerror_r
4200 strings (i_string.U):
4201 This variable holds the full path of the string header that will be
4202 used. Typically /usr/include/string.h or /usr/include/strings.h.
4205 This variable is defined but not used by Configure.
4206 The value is a plain '' and is not useful.
4208 subversion (patchlevel.U):
4209 The subversion level of this package.
4210 The value of subversion comes from the patchlevel.h file.
4211 In a version number such as 5.6.1, this is the "1".
4212 In patchlevel.h, this is referred to as "PERL_SUBVERSION".
4213 This is unique to perl.
4216 This variable holds the place where the manual is located on this
4217 system. It is not the place where the user wants to put his manual
4218 pages. Rather it is the place where Configure may look to find manual
4219 for unix commands (section 1 of the manual usually). See mansrc.
4222 This variable is defined but not used by Configure.
4223 The value is a plain '' and is not useful.
4226 This variable is defined but not used by Configure.
4227 The value is a plain '' and is not useful.
4229 targetarch (Cross.U):
4230 If cross-compiling, this variable contains the target architecture.
4231 If not, this will be empty.
4234 This variable is defined but not used by Configure.
4235 The value is a plain '' and is not useful.
4238 This variable is defined but not used by Configure.
4239 The value is a plain '' and is not useful.
4242 This variable is used internally by Configure to determine the
4243 full pathname (if any) of the test program. After Configure runs,
4244 the value is reset to a plain "test" and is not useful.
4246 timeincl (i_time.U):
4247 This variable holds the full path of the included time header(s).
4249 timetype (d_time.U):
4250 This variable holds the type returned by time(). It can be long,
4251 or time_t on BSD sites (in which case <sys/types.h> should be
4252 included). Anyway, the type Time_t should be used.
4254 tmpnam_r_proto (d_tmpnam_r.U):
4255 This variable encodes the prototype of tmpnam_r.
4256 It is zero if d_tmpnam_r is undef, and one of the
4257 REENTRANT_PROTO_T_ABC macros of reentr.h if d_tmpnam_r
4261 This variable contains the command used by Configure
4262 to copy to from the target host. Useful and available
4263 only during Perl build.
4264 The string ':' if not cross-compiling.
4267 This variable is used internally by Configure to determine the
4268 full pathname (if any) of the touch program. After Configure runs,
4269 the value is reset to a plain "touch" and is not useful.
4272 This variable is used internally by Configure to determine the
4273 full pathname (if any) of the tr program. After Configure runs,
4274 the value is reset to a plain "tr" and is not useful.
4277 This variable contains the value to be passed to the tr(1)
4278 command to transliterate a newline. Typical values are
4279 '\012' and '\n'. This is needed for EBCDIC systems where
4280 newline is not necessarily '\012'.
4283 This variable is defined but not used by Configure.
4284 The value is a plain '' and is not useful.
4286 ttyname_r_proto (d_ttyname_r.U):
4287 This variable encodes the prototype of ttyname_r.
4288 It is zero if d_ttyname_r is undef, and one of the
4289 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ttyname_r
4293 This variable is the size of an U16 in bytes.
4296 This variable contains the C type used for Perl's U16.
4299 This variable is the size of an U32 in bytes.
4302 This variable contains the C type used for Perl's U32.
4305 This variable is the size of an U64 in bytes.
4308 This variable contains the C type used for Perl's U64.
4311 This variable is the size of an U8 in bytes.
4314 This variable contains the C type used for Perl's U8.
4317 This variable contains the format string used for printing a Uid_t.
4319 uidsign (uidsign.U):
4320 This variable contains the signedness of a uidtype.
4321 1 for unsigned, -1 for signed.
4323 uidsize (uidsize.U):
4324 This variable contains the size of a uidtype in bytes.
4326 uidtype (uidtype.U):
4327 This variable defines Uid_t to be something like uid_t, int,
4328 ushort, or whatever type is used to declare user ids in the kernel.
4331 This variable is used internally by Configure to determine the
4332 full pathname (if any) of the uname program. After Configure runs,
4333 the value is reset to a plain "uname" and is not useful.
4336 This variable is used internally by Configure to determine the
4337 full pathname (if any) of the uniq program. After Configure runs,
4338 the value is reset to a plain "uniq" and is not useful.
4340 uquadtype (quadtype.U):
4341 This variable defines Uquad_t to be something like unsigned long,
4342 unsigned int, unsigned long long, uint64_t, or whatever type is
4343 used for 64-bit integers.
4345 use5005threads (usethreads.U):
4346 This variable conditionally defines the USE_5005THREADS symbol,
4347 and indicates that Perl should be built to use the 5.005-based
4348 threading implementation.
4350 use64bitall (use64bits.U):
4351 This variable conditionally defines the USE_64_BIT_ALL symbol,
4352 and indicates that 64-bit integer types should be used
4353 when available. The maximal possible
4354 64-bitness is employed: LP64 or ILP64, meaning that you will
4355 be able to use more than 2 gigabytes of memory. This mode is
4356 even more binary incompatible than USE_64_BIT_INT. You may not
4357 be able to run the resulting executable in a 32-bit CPU at all or
4358 you may need at least to reboot your OS to 64-bit mode.
4360 use64bitint (use64bits.U):
4361 This variable conditionally defines the USE_64_BIT_INT symbol,
4362 and indicates that 64-bit integer types should be used
4363 when available. The minimal possible 64-bitness
4364 is employed, just enough to get 64-bit integers into Perl.
4365 This may mean using for example "long longs", while your memory
4366 may still be limited to 2 gigabytes.
4368 usecrosscompile (Cross.U):
4369 This variable conditionally defines the USE_CROSS_COMPILE symbol,
4370 and indicates that Perl has been cross-compiled.
4373 This variable indicates if the system supports dynamic
4374 loading of some sort. See also dlsrc and dlobj.
4376 useithreads (usethreads.U):
4377 This variable conditionally defines the USE_ITHREADS symbol,
4378 and indicates that Perl should be built to use the interpreter-based
4379 threading implementation.
4381 uselargefiles (uselfs.U):
4382 This variable conditionally defines the USE_LARGE_FILES symbol,
4383 and indicates that large file interfaces should be used when
4386 uselongdouble (uselongdbl.U):
4387 This variable conditionally defines the USE_LONG_DOUBLE symbol,
4388 and indicates that long doubles should be used when available.
4390 usemorebits (usemorebits.U):
4391 This variable conditionally defines the USE_MORE_BITS symbol,
4392 and indicates that explicit 64-bit interfaces and long doubles
4393 should be used when available.
4395 usemultiplicity (usemultiplicity.U):
4396 This variable conditionally defines the MULTIPLICITY symbol,
4397 and indicates that Perl should be built to use multiplicity.
4399 usemymalloc (mallocsrc.U):
4400 This variable contains y if the malloc that comes with this package
4401 is desired over the system's version of malloc. People often include
4402 special versions of malloc for effiency, but such versions are often
4403 less portable. See also mallocsrc and mallocobj.
4404 If this is 'y', then -lmalloc is removed from $libs.
4407 This variable contains 'true' or 'false' depending whether the
4408 nm extraction is wanted or not.
4410 useopcode (Extensions.U):
4411 This variable holds either 'true' or 'false' to indicate
4412 whether the Opcode extension should be used. The sole
4413 use for this currently is to allow an easy mechanism
4414 for users to skip the Opcode extension from the Configure
4417 useperlio (useperlio.U):
4418 This variable conditionally defines the USE_PERLIO symbol,
4419 and indicates that the PerlIO abstraction should be
4422 useposix (Extensions.U):
4423 This variable holds either 'true' or 'false' to indicate
4424 whether the POSIX extension should be used. The sole
4425 use for this currently is to allow an easy mechanism
4426 for hints files to indicate that POSIX will not compile
4427 on a particular system.
4429 usereentrant (usethreads.U):
4430 This variable conditionally defines the USE_REENTRANT_API symbol,
4431 which indicates that the thread code may try to use the various
4432 _r versions of library functions. This is only potentially
4433 meaningful if usethreads is set and is very experimental, it is
4434 not even prompted for.
4437 This variable is set to true when the user agrees to use sfio.
4438 It is set to false when sfio is not available or when the user
4439 explicitely requests not to use sfio. It is here primarily so
4440 that command-line settings can override the auto-detection of
4441 d_sfio without running into a "WHOA THERE".
4443 useshrplib (libperl.U):
4444 This variable is set to 'true' if the user wishes
4445 to build a shared libperl, and 'false' otherwise.
4447 usesocks (usesocks.U):
4448 This variable conditionally defines the USE_SOCKS symbol,
4449 and indicates that Perl should be built to use SOCKS.
4451 usethreads (usethreads.U):
4452 This variable conditionally defines the USE_THREADS symbol,
4453 and indicates that Perl should be built to use threads.
4455 usevendorprefix (vendorprefix.U):
4456 This variable tells whether the vendorprefix
4457 and consequently other vendor* paths are in use.
4459 usevfork (d_vfork.U):
4460 This variable is set to true when the user accepts to use vfork.
4461 It is set to false when no vfork is available or when the user
4462 explicitely requests not to use vfork.
4465 This variable holds the path of the include files, which is
4466 usually /usr/include. It is mainly used by other Configure units.
4469 This variable is defined but not used by Configure.
4470 The value is a plain '' and is not useful.
4472 uvXUformat (perlxvf.U):
4473 This variable contains the format string used for printing
4474 a Perl UV as an unsigned hexadecimal integer in uppercase ABCDEF.
4476 uvoformat (perlxvf.U):
4477 This variable contains the format string used for printing
4478 a Perl UV as an unsigned octal integer.
4481 This variable is the size of a UV in bytes.
4484 This variable contains the C type used for Perl's UV.
4486 uvuformat (perlxvf.U):
4487 This variable contains the format string used for printing
4488 a Perl UV as an unsigned decimal integer.
4490 uvxformat (perlxvf.U):
4491 This variable contains the format string used for printing
4492 a Perl UV as an unsigned hexadecimal integer in lowercase abcdef.
4494 vendorarch (vendorarch.U):
4495 This variable contains the value of the PERL_VENDORARCH symbol.
4496 It may have a ~ on the front.
4497 The standard distribution will put nothing in this directory.
4498 Vendors who distribute perl may wish to place their own
4499 architecture-dependent modules and extensions in this directory with
4500 MakeMaker Makefile.PL INSTALLDIRS=vendor
4501 or equivalent. See INSTALL for details.
4503 vendorarchexp (vendorarch.U):
4504 This variable is the ~name expanded version of vendorarch, so that you
4505 may use it directly in Makefiles or shell scripts.
4507 vendorbin (vendorbin.U):
4508 This variable contains the eventual value of the VENDORBIN symbol.
4509 It may have a ~ on the front.
4510 The standard distribution will put nothing in this directory.
4511 Vendors who distribute perl may wish to place additional
4512 binaries in this directory with
4513 MakeMaker Makefile.PL INSTALLDIRS=vendor
4514 or equivalent. See INSTALL for details.
4516 vendorbinexp (vendorbin.U):
4517 This variable is the ~name expanded version of vendorbin, so that you
4518 may use it directly in Makefiles or shell scripts.
4520 vendorlib (vendorlib.U):
4521 This variable contains the eventual value of the VENDORLIB symbol,
4522 which is the name of the private library for this package.
4523 The standard distribution will put nothing in this directory.
4524 Vendors who distribute perl may wish to place their own
4525 modules in this directory with
4526 MakeMaker Makefile.PL INSTALLDIRS=vendor
4527 or equivalent. See INSTALL for details.
4529 vendorlib_stem (vendorlib.U):
4530 This variable is $vendorlibexp with any trailing version-specific component
4531 removed. The elements in inc_version_list (inc_version_list.U) can
4532 be tacked onto this variable to generate a list of directories to search.
4534 vendorlibexp (vendorlib.U):
4535 This variable is the ~name expanded version of vendorlib, so that you
4536 may use it directly in Makefiles or shell scripts.
4538 vendorprefix (vendorprefix.U):
4539 This variable holds the full absolute path of the directory below
4540 which the vendor will install add-on packages.
4541 See INSTALL for usage and examples.
4543 vendorprefixexp (vendorprefix.U):
4544 This variable holds the full absolute path of the directory below
4545 which the vendor will install add-on packages. Derived from vendorprefix.
4547 version (patchlevel.U):
4548 The full version number of this package, such as 5.6.1 (or 5_6_1).
4549 This combines revision, patchlevel, and subversion to get the
4550 full version number, including any possible subversions.
4551 This is suitable for use as a directory name, and hence is
4552 filesystem dependent.
4554 version_patchlevel_string (patchlevel.U):
4555 This is a string combining version, subversion and
4556 perl_patchlevel (if perl_patchlevel is non-zero).
4557 It is typically something like
4558 'version 7 subversion 1' or
4559 'version 7 subversion 1 patchlevel 11224'
4560 It is computed here to avoid duplication of code in myconfig.SH
4563 versiononly (versiononly.U):
4564 If set, this symbol indicates that only the version-specific
4565 components of a perl installation should be installed.
4566 This may be useful for making a test installation of a new
4567 version without disturbing the existing installation.
4568 Setting versiononly is equivalent to setting installperl's -v option.
4569 In particular, the non-versioned scripts and programs such as
4570 a2p, c2ph, h2xs, pod2*, and perldoc are not installed
4571 (see INSTALL for a more complete list). Nor are the man
4573 Usually, this is undef.
4576 This variable is defined but not used by Configure.
4577 The value is a plain '' and is not useful.
4579 voidflags (voidflags.U):
4580 This variable contains the eventual value of the VOIDFLAGS symbol,
4581 which indicates how much support of the void type is given by this
4582 compiler. See VOIDFLAGS for more info.
4585 This variable holds extra path (space-separated) used to find
4586 libraries on this platform, for example CPU-specific libraries
4587 (on multi-CPU platforms) may be listed here.
4589 xs_apiversion (xs_apiversion.U):
4590 This variable contains the version of the oldest perl binary
4591 compatible with the present perl. perl.c:incpush() and
4592 lib/lib.pm will automatically search in $sitearch for older
4593 directories across major versions back to xs_apiversion.
4594 This is only useful if you have a perl library directory tree
4595 structured like the default one.
4596 See INSTALL for how this works.
4597 The versioned site_perl directory was introduced in 5.005,
4598 so that is the lowest possible value.
4599 Since this can depend on compile time options
4600 it is set by Configure. Other non-default sources
4601 of potential incompatibility, such as multiplicity, threads,
4602 debugging, 64bits, sfio, etc., are not checked for currently,
4603 though in principle we could go snooping around in old
4607 This variable holds the name of the compiler compiler we
4608 want to use in the Makefile. It can be yacc, byacc, or bison -y.
4611 This variable contains any additional yacc flags desired by the
4612 user. It is up to the Makefile to use this.
4615 This variable is defined but not used by Configure.
4616 The value is a plain '' and is not useful.
4619 This variable is used internally by Configure to determine the
4620 full pathname (if any) of the zip program. After Configure runs,
4621 the value is reset to a plain "zip" and is not useful.