1Config(3pm) Perl Programmers Reference Guide Config(3pm)
2
6 Config - access Perl configuration information
7
9 use Config;
10 if ($Config{usethreads}) {
11 print "has thread support\n"
12 }
13 use Config qw(myconfig config_sh config_vars config_re);
15 print myconfig();
17 print config_sh();
19 print config_re();
21 config_vars(qw(osname archname));
23
25 The Config module contains all the information that was available to
26 the "Configure" program at Perl build time (over 900 values).
27 Shell variables from the config.sh file (written by Configure) are
29 stored in the readonly-variable %Config, indexed by their names.
30 Values stored in config.sh as 'undef' are returned as undefined values.
32 The perl "exists" function can be used to check if a named variable
33 exists.
34 For a description of the variables, please have a look at the Glossary
36 file, as written in the Porting folder, or use the url:
37 http://perl5.git.perl.org/perl.git/blob/HEAD:/Porting/Glossary
38 myconfig()
40 Returns a textual summary of the major perl configuration values.
41 See also "-V" in "Switches" in perlrun.
42 config_sh()
44 Returns the entire perl configuration information in the form of
45 the original config.sh shell variable assignment script.
46 config_re($regex)
48 Like config_sh() but returns, as a list, only the config entries
49 who's names match the $regex.
50 config_vars(@names)
52 Prints to STDOUT the values of the named configuration variable.
53 Each is printed on a separate line in the form:
54 name='value';
56 Names which are unknown are output as "name='UNKNOWN';". See also
58 "-V:name" in "Switches" in perlrun.
59
61 Here's a more sophisticated example of using %Config:
62 use Config;
64 use strict;
65 my %sig_num;
67 my @sig_name;
68 unless($Config{sig_name} && $Config{sig_num}) {
69 die "No sigs?";
70 } else {
71 my @names = split ' ', $Config{sig_name};
72 @sig_num{@names} = split ' ', $Config{sig_num};
73 foreach (@names) {
74 $sig_name[$sig_num{$_}] ||= $_;
75 }
76 }
77 print "signal #17 = $sig_name[17]\n";
79 if ($sig_num{ALRM}) {
80 print "SIGALRM is $sig_num{ALRM}\n";
81 }
82
84 Because this information is not stored within the perl executable
85 itself it is possible (but unlikely) that the information does not
86 relate to the actual perl binary which is being used to access it.
87 The Config module is installed into the architecture and version
89 specific library directory ($Config{installarchlib}) and it checks the
90 perl version number when loaded.
91 The values stored in config.sh may be either single-quoted or double-
93 quoted. Double-quoted strings are handy for those cases where you need
94 to include escape sequences in the strings. To avoid runtime variable
95 interpolation, any "$" and "@" characters are replaced by "\$" and
96 "\@", respectively. This isn't foolproof, of course, so don't embed
97 "\$" or "\@" in double-quoted strings unless you're willing to deal
98 with the consequences. (The slashes will end up escaped and the "$" or
99 "@" will trigger variable interpolation)
100
102 Most "Config" variables are determined by the "Configure" script on
103 platforms supported by it (which is most UNIX platforms). Some
104 platforms have custom-made "Config" variables, and may thus not have
105 some of the variables described below, or may have extraneous variables
106 specific to that particular port. See the port specific documentation
107 in such cases.
108 _
110 "_a"
111 From Unix.U:
112 This variable defines the extension used for ordinary library
114 files. For unix, it is .a. The . is included. Other possible
115 values include .lib.
116 "_exe"
118 From Unix.U:
119 This variable defines the extension used for executable files.
121 "DJGPP", Cygwin and OS/2 use .exe. Stratus "VOS" uses .pm. On
122 operating systems which do not require a specific extension for
123 executable files, this variable is empty.
124 "_o"
126 From Unix.U:
127 This variable defines the extension used for object files. For
129 unix, it is .o. The . is included. Other possible values include
130 .obj.
131 a
133 "afs"
134 From afs.U:
135 This variable is set to "true" if "AFS" (Andrew File System) is
137 used on the system, "false" otherwise. It is possible to override
138 this with a hint value or command line option, but you'd better
139 know what you are doing.
140 "afsroot"
142 From afs.U:
143 This variable is by default set to /afs. In the unlikely case this
145 is not the correct root, it is possible to override this with a
146 hint value or command line option. This will be used in subsequent
147 tests for AFSness in the configure and test process.
148 "alignbytes"
150 From alignbytes.U:
151 This variable holds the number of bytes required to align a
153 double-- or a long double when applicable. Usual values are 2, 4
154 and 8. The default is eight, for safety.
155 "ansi2knr"
157 From ansi2knr.U:
158 This variable is set if the user needs to run ansi2knr. Currently,
160 this is not supported, so we just abort.
161 "aphostname"
163 From d_gethname.U:
164 This variable contains the command which can be used to compute the
166 host name. The command is fully qualified by its absolute path, to
167 make it safe when used by a process with super-user privileges.
168 "api_revision"
170 From patchlevel.U:
171 The three variables, api_revision, api_version, and api_subversion,
173 specify the version of the oldest perl binary compatible with the
174 present perl. In a full version string such as 5.6.1, api_revision
175 is the 5. Prior to 5.5.640, the format was a floating point
176 number, like 5.00563.
177 perl.c:incpush() and lib/lib.pm will automatically search in
179 $sitelib/.. for older directories back to the limit specified by
180 these api_ variables. This is only useful if you have a perl
181 library directory tree structured like the default one. See
182 "INSTALL" for how this works. The versioned site_perl directory
183 was introduced in 5.005, so that is the lowest possible value. The
184 version list appropriate for the current system is determined in
185 inc_version_list.U.
186 "XXX" To do: Since compatibility can depend on compile time
188 options (such as bincompat, longlong, etc.) it should (perhaps) be
189 set by Configure, but currently it isn't. Currently, we read a
190 hard-wired value from patchlevel.h. Perhaps what we ought to do is
191 take the hard-wired value from patchlevel.h but then modify it if
192 the current Configure options warrant. patchlevel.h then would use
193 an #ifdef guard.
194 "api_subversion"
196 From patchlevel.U:
197 The three variables, api_revision, api_version, and api_subversion,
199 specify the version of the oldest perl binary compatible with the
200 present perl. In a full version string such as 5.6.1,
201 api_subversion is the 1. See api_revision for full details.
202 "api_version"
204 From patchlevel.U:
205 The three variables, api_revision, api_version, and api_subversion,
207 specify the version of the oldest perl binary compatible with the
208 present perl. In a full version string such as 5.6.1, api_version
209 is the 6. See api_revision for full details. As a special case,
210 5.5.0 is rendered in the old-style as 5.005. (In the 5.005_0x
211 maintenance series, this was the only versioned directory in
212 $sitelib.)
213 "api_versionstring"
215 From patchlevel.U:
216 This variable combines api_revision, api_version, and
218 api_subversion in a format such as 5.6.1 (or 5_6_1) suitable for
219 use as a directory name. This is filesystem dependent.
220 "ar"
222 From Loc.U:
223 This variable is used internally by Configure to determine the full
225 pathname (if any) of the ar program. After Configure runs, the
226 value is reset to a plain "ar" and is not useful.
227 "archlib"
229 From archlib.U:
230 This variable holds the name of the directory in which the user
232 wants to put architecture-dependent public library files for
233 $package. It is most often a local directory such as
234 /usr/local/lib. Programs using this variable must be prepared to
235 deal with filename expansion.
236 "archlibexp"
238 From archlib.U:
239 This variable is the same as the archlib variable, but is filename
241 expanded at configuration time, for convenient use.
242 "archname"
244 From archname.U:
245 This variable is a short name to characterize the current
247 architecture. It is used mainly to construct the default archlib.
248 "archname64"
250 From use64bits.U:
251 This variable is used for the 64-bitness part of $archname.
253 "archobjs"
255 From Unix.U:
256 This variable defines any additional objects that must be linked in
258 with the program on this architecture. On unix, it is usually
259 empty. It is typically used to include emulations of unix calls or
260 other facilities. For perl on OS/2, for example, this would
261 include os2/os2.obj.
262 "asctime_r_proto"
264 From d_asctime_r.U:
265 This variable encodes the prototype of asctime_r. It is zero if
267 d_asctime_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
268 of reentr.h if d_asctime_r is defined.
269 "awk"
271 From Loc.U:
272 This variable is used internally by Configure to determine the full
274 pathname (if any) of the awk program. After Configure runs, the
275 value is reset to a plain "awk" and is not useful.
276 b
278 "baserev"
279 From baserev.U:
280 The base revision level of this package, from the .package file.
282 "bash"
284 From Loc.U:
285 This variable is defined but not used by Configure. The value is
287 the empty string and is not useful.
288 "bin"
290 From bin.U:
291 This variable holds the name of the directory in which the user
293 wants to put publicly executable images for the package in
294 question. It is most often a local directory such as
295 /usr/local/bin. Programs using this variable must be prepared to
296 deal with ~name substitution.
297 "binexp"
299 From bin.U:
300 This is the same as the bin variable, but is filename expanded at
302 configuration time, for use in your makefiles.
303 "bison"
305 From Loc.U:
306 This variable is used internally by Configure to determine the full
308 pathname (if any) of the bison program. After Configure runs, the
309 value is reset to a plain "bison" and is not useful.
310 "byacc"
312 From Loc.U:
313 This variable is used internally by Configure to determine the full
315 pathname (if any) of the byacc program. After Configure runs, the
316 value is reset to a plain "byacc" and is not useful.
317 "byteorder"
319 From byteorder.U:
320 This variable holds the byte order in a "UV". In the following,
322 larger digits indicate more significance. The variable byteorder
323 is either 4321 on a big-endian machine, or 1234 on a little-endian,
324 or 87654321 on a Cray ... or 3412 with weird order !
325 c
327 "c" From n.U:
328 This variable contains the \c string if that is what causes the
330 echo command to suppress newline. Otherwise it is null. Correct
331 usage is $echo $n "prompt for a question: $c".
332 "castflags"
334 From d_castneg.U:
335 This variable contains a flag that precise difficulties the
337 compiler has casting odd floating values to unsigned long: 0 = ok 1
338 = couldn't cast < 0 2 = couldn't cast >= 0x80000000 4 = couldn't
339 cast in argument expression list
340 "cat"
342 From Loc.U:
343 This variable is used internally by Configure to determine the full
345 pathname (if any) of the cat program. After Configure runs, the
346 value is reset to a plain "cat" and is not useful.
347 "cc"
349 From cc.U:
350 This variable holds the name of a command to execute a C compiler
352 which can resolve multiple global references that happen to have
353 the same name. Usual values are "cc" and "gcc". Fervent "ANSI"
354 compilers may be called "c89". "AIX" has xlc.
355 "cccdlflags"
357 From dlsrc.U:
358 This variable contains any special flags that might need to be
360 passed with "cc -c" to compile modules to be used to create a
361 shared library that will be used for dynamic loading. For hpux,
362 this should be +z. It is up to the makefile to use it.
363 "ccdlflags"
365 From dlsrc.U:
366 This variable contains any special flags that might need to be
368 passed to cc to link with a shared library for dynamic loading. It
369 is up to the makefile to use it. For sunos 4.1, it should be
370 empty.
371 "ccflags"
373 From ccflags.U:
374 This variable contains any additional C compiler flags desired by
376 the user. It is up to the Makefile to use this.
377 "ccflags_uselargefiles"
379 From uselfs.U:
380 This variable contains the compiler flags needed by large file
382 builds and added to ccflags by hints files.
383 "ccname"
385 From Checkcc.U:
386 This can set either by hints files or by Configure. If using gcc,
388 this is gcc, and if not, usually equal to cc, unimpressive, no?
389 Some platforms, however, make good use of this by storing the
390 flavor of the C compiler being used here. For example if using the
391 Sun WorkShop suite, ccname will be "workshop".
392 "ccsymbols"
394 From Cppsym.U:
395 The variable contains the symbols defined by the C compiler alone.
397 The symbols defined by cpp or by cc when it calls cpp are not in
398 this list, see cppsymbols and cppccsymbols. The list is a space-
399 separated list of symbol=value tokens.
400 "ccversion"
402 From Checkcc.U:
403 This can set either by hints files or by Configure. If using a
405 (non-gcc) vendor cc, this variable may contain a version for the
406 compiler.
407 "cf_by"
409 From cf_who.U:
410 Login name of the person who ran the Configure script and answered
412 the questions. This is used to tag both config.sh and config_h.SH.
413 "cf_email"
415 From cf_email.U:
416 Electronic mail address of the person who ran Configure. This can
418 be used by units that require the user's e-mail, like MailList.U.
419 "cf_time"
421 From cf_who.U:
422 Holds the output of the "date" command when the configuration file
424 was produced. This is used to tag both config.sh and config_h.SH.
425 "chgrp"
427 From Loc.U:
428 This variable is defined but not used by Configure. The value is
430 the empty string and is not useful.
431 "chmod"
433 From Loc.U:
434 This variable is used internally by Configure to determine the full
436 pathname (if any) of the chmod program. After Configure runs, the
437 value is reset to a plain "chmod" and is not useful.
438 "chown"
440 From Loc.U:
441 This variable is defined but not used by Configure. The value is
443 the empty string and is not useful.
444 "clocktype"
446 From d_times.U:
447 This variable holds the type returned by times(). It can be long,
449 or clock_t on "BSD" sites (in which case <sys/types.h> should be
450 included).
451 "comm"
453 From Loc.U:
454 This variable is used internally by Configure to determine the full
456 pathname (if any) of the comm program. After Configure runs, the
457 value is reset to a plain "comm" and is not useful.
458 "compress"
460 From Loc.U:
461 This variable is defined but not used by Configure. The value is
463 the empty string and is not useful.
464 "contains"
466 From contains.U:
467 This variable holds the command to do a grep with a proper return
469 status. On most sane systems it is simply "grep". On insane
470 systems it is a grep followed by a cat followed by a test. This
471 variable is primarily for the use of other Configure units.
472 "cp"
474 From Loc.U:
475 This variable is used internally by Configure to determine the full
477 pathname (if any) of the cp program. After Configure runs, the
478 value is reset to a plain "cp" and is not useful.
479 "cpio"
481 From Loc.U:
482 This variable is defined but not used by Configure. The value is
484 the empty string and is not useful.
485 "cpp"
487 From Loc.U:
488 This variable is used internally by Configure to determine the full
490 pathname (if any) of the cpp program. After Configure runs, the
491 value is reset to a plain "cpp" and is not useful.
492 "cpp_stuff"
494 From cpp_stuff.U:
495 This variable contains an identification of the concatenation
497 mechanism used by the C preprocessor.
498 "cppccsymbols"
500 From Cppsym.U:
501 The variable contains the symbols defined by the C compiler when it
503 calls cpp. The symbols defined by the cc alone or cpp alone are
504 not in this list, see ccsymbols and cppsymbols. The list is a
505 space-separated list of symbol=value tokens.
506 "cppflags"
508 From ccflags.U:
509 This variable holds the flags that will be passed to the C pre-
511 processor. It is up to the Makefile to use it.
512 "cpplast"
514 From cppstdin.U:
515 This variable has the same functionality as cppminus, only it
517 applies to cpprun and not cppstdin.
518 "cppminus"
520 From cppstdin.U:
521 This variable contains the second part of the string which will
523 invoke the C preprocessor on the standard input and produce to
524 standard output. This variable will have the value "-" if cppstdin
525 needs a minus to specify standard input, otherwise the value is "".
526 "cpprun"
528 From cppstdin.U:
529 This variable contains the command which will invoke a C
531 preprocessor on standard input and put the output to stdout. It is
532 guaranteed not to be a wrapper and may be a null string if no
533 preprocessor can be made directly available. This preprocessor
534 might be different from the one used by the C compiler. Don't
535 forget to append cpplast after the preprocessor options.
536 "cppstdin"
538 From cppstdin.U:
539 This variable contains the command which will invoke the C
541 preprocessor on standard input and put the output to stdout. It is
542 primarily used by other Configure units that ask about preprocessor
543 symbols.
544 "cppsymbols"
546 From Cppsym.U:
547 The variable contains the symbols defined by the C preprocessor
549 alone. The symbols defined by cc or by cc when it calls cpp are
550 not in this list, see ccsymbols and cppccsymbols. The list is a
551 space-separated list of symbol=value tokens.
552 "crypt_r_proto"
554 From d_crypt_r.U:
555 This variable encodes the prototype of crypt_r. It is zero if
557 d_crypt_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
558 of reentr.h if d_crypt_r is defined.
559 "cryptlib"
561 From d_crypt.U:
562 This variable holds -lcrypt or the path to a libcrypt.a archive if
564 the crypt() function is not defined in the standard C library. It
565 is up to the Makefile to use this.
566 "csh"
568 From Loc.U:
569 This variable is used internally by Configure to determine the full
571 pathname (if any) of the csh program. After Configure runs, the
572 value is reset to a plain "csh" and is not useful.
573 "ctermid_r_proto"
575 From d_ctermid_r.U:
576 This variable encodes the prototype of ctermid_r. It is zero if
578 d_ctermid_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
579 of reentr.h if d_ctermid_r is defined.
580 "ctime_r_proto"
582 From d_ctime_r.U:
583 This variable encodes the prototype of ctime_r. It is zero if
585 d_ctime_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
586 of reentr.h if d_ctime_r is defined.
587 d
589 "d__fwalk"
590 From d__fwalk.U:
591 This variable conditionally defines "HAS__FWALK" if _fwalk() is
593 available to apply a function to all the file handles.
594 "d_access"
596 From d_access.U:
597 This variable conditionally defines "HAS_ACCESS" if the access()
599 system call is available to check for access permissions using real
600 IDs.
601 "d_accessx"
603 From d_accessx.U:
604 This variable conditionally defines the "HAS_ACCESSX" symbol, which
606 indicates to the C program that the accessx() routine is available.
607 "d_aintl"
609 From d_aintl.U:
610 This variable conditionally defines the "HAS_AINTL" symbol, which
612 indicates to the C program that the aintl() routine is available.
613 If copysignl is also present we can emulate modfl.
614 "d_alarm"
616 From d_alarm.U:
617 This variable conditionally defines the "HAS_ALARM" symbol, which
619 indicates to the C program that the alarm() routine is available.
620 "d_archlib"
622 From archlib.U:
623 This variable conditionally defines "ARCHLIB" to hold the pathname
625 of architecture-dependent library files for $package. If $archlib
626 is the same as $privlib, then this is set to undef.
627 "d_asctime64"
629 From d_timefuncs64.U:
630 This variable conditionally defines the HAS_ASCTIME64 symbol, which
632 indicates to the C program that the asctime64 () routine is
633 available.
634 "d_asctime_r"
636 From d_asctime_r.U:
637 This variable conditionally defines the "HAS_ASCTIME_R" symbol,
639 which indicates to the C program that the asctime_r() routine is
640 available.
641 "d_atolf"
643 From atolf.U:
644 This variable conditionally defines the "HAS_ATOLF" symbol, which
646 indicates to the C program that the atolf() routine is available.
647 "d_atoll"
649 From atoll.U:
650 This variable conditionally defines the "HAS_ATOLL" symbol, which
652 indicates to the C program that the atoll() routine is available.
653 "d_attribute_deprecated"
655 From d_attribut.U:
656 This variable conditionally defines "HASATTRIBUTE_DEPRECATED",
658 which indicates that "GCC" can handle the attribute for marking
659 deprecated APIs
660 "d_attribute_format"
662 From d_attribut.U:
663 This variable conditionally defines "HASATTRIBUTE_FORMAT", which
665 indicates the C compiler can check for printf-like formats.
666 "d_attribute_malloc"
668 From d_attribut.U:
669 This variable conditionally defines "HASATTRIBUTE_MALLOC", which
671 indicates the C compiler can understand functions as having malloc-
672 like semantics.
673 "d_attribute_nonnull"
675 From d_attribut.U:
676 This variable conditionally defines "HASATTRIBUTE_NONNULL", which
678 indicates that the C compiler can know that certain arguments must
679 not be "NULL", and will check accordingly at compile time.
680 "d_attribute_noreturn"
682 From d_attribut.U:
683 This variable conditionally defines "HASATTRIBUTE_NORETURN", which
685 indicates that the C compiler can know that certain functions are
686 guaranteed never to return.
687 "d_attribute_pure"
689 From d_attribut.U:
690 This variable conditionally defines "HASATTRIBUTE_PURE", which
692 indicates that the C compiler can know that certain functions are
693 "pure" functions, meaning that they have no side effects, and only
694 rely on function input and/or global data for their results.
695 "d_attribute_unused"
697 From d_attribut.U:
698 This variable conditionally defines "HASATTRIBUTE_UNUSED", which
700 indicates that the C compiler can know that certain variables and
701 arguments may not always be used, and to not throw warnings if they
702 don't get used.
703 "d_attribute_warn_unused_result"
705 From d_attribut.U:
706 This variable conditionally defines
708 "HASATTRIBUTE_WARN_UNUSED_RESULT", which indicates that the C
709 compiler can know that certain functions have a return values that
710 must not be ignored, such as malloc() or open().
711 "d_bcmp"
713 From d_bcmp.U:
714 This variable conditionally defines the "HAS_BCMP" symbol if the
716 bcmp() routine is available to compare strings.
717 "d_bcopy"
719 From d_bcopy.U:
720 This variable conditionally defines the "HAS_BCOPY" symbol if the
722 bcopy() routine is available to copy strings.
723 "d_bsd"
725 From Guess.U:
726 This symbol conditionally defines the symbol "BSD" when running on
728 a "BSD" system.
729 "d_bsdgetpgrp"
731 From d_getpgrp.U:
732 This variable conditionally defines "USE_BSD_GETPGRP" if getpgrp
734 needs one arguments whereas "USG" one needs none.
735 "d_bsdsetpgrp"
737 From d_setpgrp.U:
738 This variable conditionally defines "USE_BSD_SETPGRP" if setpgrp
740 needs two arguments whereas "USG" one needs none. See also
741 d_setpgid for a "POSIX" interface.
742 "d_builtin_choose_expr"
744 From d_builtin.U:
745 This conditionally defines "HAS_BUILTIN_CHOOSE_EXPR", which
747 indicates that the compiler supports __builtin_choose_expr(x,y,z).
748 This built-in function is analogous to the "x?y:z" operator in C,
749 except that the expression returned has its type unaltered by
750 promotion rules. Also, the built-in function does not evaluate the
751 expression that was not chosen.
752 "d_builtin_expect"
754 From d_builtin.U:
755 This conditionally defines "HAS_BUILTIN_EXPECT", which indicates
757 that the compiler supports __builtin_expect(exp,c). You may use
758 __builtin_expect to provide the compiler with branch prediction
759 information.
760 "d_bzero"
762 From d_bzero.U:
763 This variable conditionally defines the "HAS_BZERO" symbol if the
765 bzero() routine is available to set memory to 0.
766 "d_c99_variadic_macros"
768 From d_c99_variadic.U:
769 This variable conditionally defines the HAS_C99_VARIADIC_MACROS
771 symbol, which indicates to the C program that C99 variadic macros
772 are available.
773 "d_casti32"
775 From d_casti32.U:
776 This variable conditionally defines CASTI32, which indicates
778 whether the C compiler can cast large floats to 32-bit ints.
779 "d_castneg"
781 From d_castneg.U:
782 This variable conditionally defines "CASTNEG", which indicates
784 wether the C compiler can cast negative float to unsigned.
785 "d_charvspr"
787 From d_vprintf.U:
788 This variable conditionally defines "CHARVSPRINTF" if this system
790 has vsprintf returning type (char*). The trend seems to be to
791 declare it as "int vsprintf()".
792 "d_chown"
794 From d_chown.U:
795 This variable conditionally defines the "HAS_CHOWN" symbol, which
797 indicates to the C program that the chown() routine is available.
798 "d_chroot"
800 From d_chroot.U:
801 This variable conditionally defines the "HAS_CHROOT" symbol, which
803 indicates to the C program that the chroot() routine is available.
804 "d_chsize"
806 From d_chsize.U:
807 This variable conditionally defines the "CHSIZE" symbol, which
809 indicates to the C program that the chsize() routine is available
810 to truncate files. You might need a -lx to get this routine.
811 "d_class"
813 From d_class.U:
814 This variable conditionally defines the "HAS_CLASS" symbol, which
816 indicates to the C program that the class() routine is available.
817 "d_clearenv"
819 From d_clearenv.U:
820 This variable conditionally defines the "HAS_CLEARENV" symbol,
822 which indicates to the C program that the clearenv () routine is
823 available.
824 "d_closedir"
826 From d_closedir.U:
827 This variable conditionally defines "HAS_CLOSEDIR" if closedir() is
829 available.
830 "d_cmsghdr_s"
832 From d_cmsghdr_s.U:
833 This variable conditionally defines the "HAS_STRUCT_CMSGHDR"
835 symbol, which indicates that the struct cmsghdr is supported.
836 "d_const"
838 From d_const.U:
839 This variable conditionally defines the "HASCONST" symbol, which
841 indicates to the C program that this C compiler knows about the
842 const type.
843 "d_copysignl"
845 From d_copysignl.U:
846 This variable conditionally defines the "HAS_COPYSIGNL" symbol,
848 which indicates to the C program that the copysignl() routine is
849 available. If aintl is also present we can emulate modfl.
850 "d_cplusplus"
852 From d_cplusplus.U:
853 This variable conditionally defines the "USE_CPLUSPLUS" symbol,
855 which indicates that a C++ compiler was used to compiled Perl and
856 will be used to compile extensions.
857 "d_crypt"
859 From d_crypt.U:
860 This variable conditionally defines the "CRYPT" symbol, which
862 indicates to the C program that the crypt() routine is available to
863 encrypt passwords and the like.
864 "d_crypt_r"
866 From d_crypt_r.U:
867 This variable conditionally defines the "HAS_CRYPT_R" symbol, which
869 indicates to the C program that the crypt_r() routine is available.
870 "d_csh"
872 From d_csh.U:
873 This variable conditionally defines the "CSH" symbol, which
875 indicates to the C program that the C-shell exists.
876 "d_ctermid"
878 From d_ctermid.U:
879 This variable conditionally defines "CTERMID" if ctermid() is
881 available to generate filename for terminal.
882 "d_ctermid_r"
884 From d_ctermid_r.U:
885 This variable conditionally defines the "HAS_CTERMID_R" symbol,
887 which indicates to the C program that the ctermid_r() routine is
888 available.
889 "d_ctime64"
891 From d_timefuncs64.U:
892 This variable conditionally defines the HAS_CTIME64 symbol, which
894 indicates to the C program that the ctime64 () routine is
895 available.
896 "d_ctime_r"
898 From d_ctime_r.U:
899 This variable conditionally defines the "HAS_CTIME_R" symbol, which
901 indicates to the C program that the ctime_r() routine is available.
902 "d_cuserid"
904 From d_cuserid.U:
905 This variable conditionally defines the "HAS_CUSERID" symbol, which
907 indicates to the C program that the cuserid() routine is available
908 to get character login names.
909 "d_dbl_dig"
911 From d_dbl_dig.U:
912 This variable conditionally defines d_dbl_dig if this system's
914 header files provide "DBL_DIG", which is the number of significant
915 digits in a double precision number.
916 "d_dbminitproto"
918 From d_dbminitproto.U:
919 This variable conditionally defines the "HAS_DBMINIT_PROTO" symbol,
921 which indicates to the C program that the system provides a
922 prototype for the dbminit() function. Otherwise, it is up to the
923 program to supply one.
924 "d_difftime"
926 From d_difftime.U:
927 This variable conditionally defines the "HAS_DIFFTIME" symbol,
929 which indicates to the C program that the difftime() routine is
930 available.
931 "d_difftime64"
933 From d_timefuncs64.U:
934 This variable conditionally defines the HAS_DIFFTIME64 symbol,
936 which indicates to the C program that the difftime64 () routine is
937 available.
938 "d_dir_dd_fd"
940 From d_dir_dd_fd.U:
941 This variable conditionally defines the "HAS_DIR_DD_FD" symbol,
943 which indicates that the "DIR" directory stream type contains a
944 member variable called dd_fd.
945 "d_dirfd"
947 From d_dirfd.U:
948 This variable conditionally defines the "HAS_DIRFD" constant, which
950 indicates to the C program that dirfd() is available to return the
951 file descriptor of a directory stream.
952 "d_dirnamlen"
954 From i_dirent.U:
955 This variable conditionally defines "DIRNAMLEN", which indicates to
957 the C program that the length of directory entry names is provided
958 by a d_namelen field.
959 "d_dlerror"
961 From d_dlerror.U:
962 This variable conditionally defines the "HAS_DLERROR" symbol, which
964 indicates to the C program that the dlerror() routine is available.
965 "d_dlopen"
967 From d_dlopen.U:
968 This variable conditionally defines the "HAS_DLOPEN" symbol, which
970 indicates to the C program that the dlopen() routine is available.
971 "d_dlsymun"
973 From d_dlsymun.U:
974 This variable conditionally defines "DLSYM_NEEDS_UNDERSCORE", which
976 indicates that we need to prepend an underscore to the symbol name
977 before calling dlsym().
978 "d_dosuid"
980 From d_dosuid.U:
981 This variable conditionally defines the symbol "DOSUID", which
983 tells the C program that it should insert setuid emulation code on
984 hosts which have setuid #! scripts disabled.
985 "d_drand48_r"
987 From d_drand48_r.U:
988 This variable conditionally defines the HAS_DRAND48_R symbol, which
990 indicates to the C program that the drand48_r() routine is
991 available.
992 "d_drand48proto"
994 From d_drand48proto.U:
995 This variable conditionally defines the HAS_DRAND48_PROTO symbol,
997 which indicates to the C program that the system provides a
998 prototype for the drand48() function. Otherwise, it is up to the
999 program to supply one.
1000 "d_dup2"
1002 From d_dup2.U:
1003 This variable conditionally defines HAS_DUP2 if dup2() is available
1005 to duplicate file descriptors.
1006 "d_eaccess"
1008 From d_eaccess.U:
1009 This variable conditionally defines the "HAS_EACCESS" symbol, which
1011 indicates to the C program that the eaccess() routine is available.
1012 "d_endgrent"
1014 From d_endgrent.U:
1015 This variable conditionally defines the "HAS_ENDGRENT" symbol,
1017 which indicates to the C program that the endgrent() routine is
1018 available for sequential access of the group database.
1019 "d_endgrent_r"
1021 From d_endgrent_r.U:
1022 This variable conditionally defines the "HAS_ENDGRENT_R" symbol,
1024 which indicates to the C program that the endgrent_r() routine is
1025 available.
1026 "d_endhent"
1028 From d_endhent.U:
1029 This variable conditionally defines "HAS_ENDHOSTENT" if
1031 endhostent() is available to close whatever was being used for host
1032 queries.
1033 "d_endhostent_r"
1035 From d_endhostent_r.U:
1036 This variable conditionally defines the "HAS_ENDHOSTENT_R" symbol,
1038 which indicates to the C program that the endhostent_r() routine is
1039 available.
1040 "d_endnent"
1042 From d_endnent.U:
1043 This variable conditionally defines "HAS_ENDNETENT" if endnetent()
1045 is available to close whatever was being used for network queries.
1046 "d_endnetent_r"
1048 From d_endnetent_r.U:
1049 This variable conditionally defines the "HAS_ENDNETENT_R" symbol,
1051 which indicates to the C program that the endnetent_r() routine is
1052 available.
1053 "d_endpent"
1055 From d_endpent.U:
1056 This variable conditionally defines "HAS_ENDPROTOENT" if
1058 endprotoent() is available to close whatever was being used for
1059 protocol queries.
1060 "d_endprotoent_r"
1062 From d_endprotoent_r.U:
1063 This variable conditionally defines the "HAS_ENDPROTOENT_R" symbol,
1065 which indicates to the C program that the endprotoent_r() routine
1066 is available.
1067 "d_endpwent"
1069 From d_endpwent.U:
1070 This variable conditionally defines the "HAS_ENDPWENT" symbol,
1072 which indicates to the C program that the endpwent() routine is
1073 available for sequential access of the passwd database.
1074 "d_endpwent_r"
1076 From d_endpwent_r.U:
1077 This variable conditionally defines the "HAS_ENDPWENT_R" symbol,
1079 which indicates to the C program that the endpwent_r() routine is
1080 available.
1081 "d_endsent"
1083 From d_endsent.U:
1084 This variable conditionally defines "HAS_ENDSERVENT" if
1086 endservent() is available to close whatever was being used for
1087 service queries.
1088 "d_endservent_r"
1090 From d_endservent_r.U:
1091 This variable conditionally defines the "HAS_ENDSERVENT_R" symbol,
1093 which indicates to the C program that the endservent_r() routine is
1094 available.
1095 "d_eofnblk"
1097 From nblock_io.U:
1098 This variable conditionally defines "EOF_NONBLOCK" if "EOF" can be
1100 seen when reading from a non-blocking I/O source.
1101 "d_eunice"
1103 From Guess.U:
1104 This variable conditionally defines the symbols "EUNICE" and "VAX",
1106 which alerts the C program that it must deal with ideosyncracies of
1107 "VMS".
1108 "d_faststdio"
1110 From d_faststdio.U:
1111 This variable conditionally defines the "HAS_FAST_STDIO" symbol,
1113 which indicates to the C program that the "fast stdio" is available
1114 to manipulate the stdio buffers directly.
1115 "d_fchdir"
1117 From d_fchdir.U:
1118 This variable conditionally defines the "HAS_FCHDIR" symbol, which
1120 indicates to the C program that the fchdir() routine is available.
1121 "d_fchmod"
1123 From d_fchmod.U:
1124 This variable conditionally defines the "HAS_FCHMOD" symbol, which
1126 indicates to the C program that the fchmod() routine is available
1127 to change mode of opened files.
1128 "d_fchown"
1130 From d_fchown.U:
1131 This variable conditionally defines the "HAS_FCHOWN" symbol, which
1133 indicates to the C program that the fchown() routine is available
1134 to change ownership of opened files.
1135 "d_fcntl"
1137 From d_fcntl.U:
1138 This variable conditionally defines the "HAS_FCNTL" symbol, and
1140 indicates whether the fcntl() function exists
1141 "d_fcntl_can_lock"
1143 From d_fcntl_can_lock.U:
1144 This variable conditionally defines the "FCNTL_CAN_LOCK" symbol and
1146 indicates whether file locking with fcntl() works.
1147 "d_fd_macros"
1149 From d_fd_set.U:
1150 This variable contains the eventual value of the "HAS_FD_MACROS"
1152 symbol, which indicates if your C compiler knows about the macros
1153 which manipulate an fd_set.
1154 "d_fd_set"
1156 From d_fd_set.U:
1157 This variable contains the eventual value of the "HAS_FD_SET"
1159 symbol, which indicates if your C compiler knows about the fd_set
1160 typedef.
1161 "d_fds_bits"
1163 From d_fd_set.U:
1164 This variable contains the eventual value of the "HAS_FDS_BITS"
1166 symbol, which indicates if your fd_set typedef contains the
1167 fds_bits member. If you have an fd_set typedef, but the dweebs who
1168 installed it did a half-fast job and neglected to provide the
1169 macros to manipulate an fd_set, "HAS_FDS_BITS" will let us know how
1170 to fix the gaffe.
1171 "d_fgetpos"
1173 From d_fgetpos.U:
1174 This variable conditionally defines "HAS_FGETPOS" if fgetpos() is
1176 available to get the file position indicator.
1177 "d_finite"
1179 From d_finite.U:
1180 This variable conditionally defines the "HAS_FINITE" symbol, which
1182 indicates to the C program that the finite() routine is available.
1183 "d_finitel"
1185 From d_finitel.U:
1186 This variable conditionally defines the "HAS_FINITEL" symbol, which
1188 indicates to the C program that the finitel() routine is available.
1189 "d_flexfnam"
1191 From d_flexfnam.U:
1192 This variable conditionally defines the "FLEXFILENAMES" symbol,
1194 which indicates that the system supports filenames longer than 14
1195 characters.
1196 "d_flock"
1198 From d_flock.U:
1199 This variable conditionally defines "HAS_FLOCK" if flock() is
1201 available to do file locking.
1202 "d_flockproto"
1204 From d_flockproto.U:
1205 This variable conditionally defines the "HAS_FLOCK_PROTO" symbol,
1207 which indicates to the C program that the system provides a
1208 prototype for the flock() function. Otherwise, it is up to the
1209 program to supply one.
1210 "d_fork"
1212 From d_fork.U:
1213 This variable conditionally defines the "HAS_FORK" symbol, which
1215 indicates to the C program that the fork() routine is available.
1216 "d_fp_class"
1218 From d_fp_class.U:
1219 This variable conditionally defines the "HAS_FP_CLASS" symbol,
1221 which indicates to the C program that the fp_class() routine is
1222 available.
1223 "d_fpathconf"
1225 From d_pathconf.U:
1226 This variable conditionally defines the "HAS_FPATHCONF" symbol,
1228 which indicates to the C program that the pathconf() routine is
1229 available to determine file-system related limits and options
1230 associated with a given open file descriptor.
1231 "d_fpclass"
1233 From d_fpclass.U:
1234 This variable conditionally defines the "HAS_FPCLASS" symbol, which
1236 indicates to the C program that the fpclass() routine is available.
1237 "d_fpclassify"
1239 From d_fpclassify.U:
1240 This variable conditionally defines the "HAS_FPCLASSIFY" symbol,
1242 which indicates to the C program that the fpclassify() routine is
1243 available.
1244 "d_fpclassl"
1246 From d_fpclassl.U:
1247 This variable conditionally defines the "HAS_FPCLASSL" symbol,
1249 which indicates to the C program that the fpclassl() routine is
1250 available.
1251 "d_fpos64_t"
1253 From d_fpos64_t.U:
1254 This symbol will be defined if the C compiler supports fpos64_t.
1256 "d_frexpl"
1258 From d_frexpl.U:
1259 This variable conditionally defines the "HAS_FREXPL" symbol, which
1261 indicates to the C program that the frexpl() routine is available.
1262 "d_fs_data_s"
1264 From d_fs_data_s.U:
1265 This variable conditionally defines the "HAS_STRUCT_FS_DATA"
1267 symbol, which indicates that the struct fs_data is supported.
1268 "d_fseeko"
1270 From d_fseeko.U:
1271 This variable conditionally defines the "HAS_FSEEKO" symbol, which
1273 indicates to the C program that the fseeko() routine is available.
1274 "d_fsetpos"
1276 From d_fsetpos.U:
1277 This variable conditionally defines "HAS_FSETPOS" if fsetpos() is
1279 available to set the file position indicator.
1280 "d_fstatfs"
1282 From d_fstatfs.U:
1283 This variable conditionally defines the "HAS_FSTATFS" symbol, which
1285 indicates to the C program that the fstatfs() routine is available.
1286 "d_fstatvfs"
1288 From d_statvfs.U:
1289 This variable conditionally defines the "HAS_FSTATVFS" symbol,
1291 which indicates to the C program that the fstatvfs() routine is
1292 available.
1293 "d_fsync"
1295 From d_fsync.U:
1296 This variable conditionally defines the "HAS_FSYNC" symbol, which
1298 indicates to the C program that the fsync() routine is available.
1299 "d_ftello"
1301 From d_ftello.U:
1302 This variable conditionally defines the "HAS_FTELLO" symbol, which
1304 indicates to the C program that the ftello() routine is available.
1305 "d_ftime"
1307 From d_ftime.U:
1308 This variable conditionally defines the "HAS_FTIME" symbol, which
1310 indicates that the ftime() routine exists. The ftime() routine is
1311 basically a sub-second accuracy clock.
1312 "d_futimes"
1314 From d_futimes.U:
1315 This variable conditionally defines the "HAS_FUTIMES" symbol, which
1317 indicates to the C program that the futimes() routine is available.
1318 "d_Gconvert"
1320 From d_gconvert.U:
1321 This variable holds what Gconvert is defined as to convert floating
1323 point numbers into strings. By default, Configure sets "this"
1324 macro to use the first of gconvert, gcvt, or sprintf that pass
1325 sprintf-%g-like behaviour tests. If perl is using long doubles,
1326 the macro uses the first of the following functions that pass
1327 Configure's tests: qgcvt, sprintf (if Configure knows how to make
1328 sprintf format long doubles--see sPRIgldbl), gconvert, gcvt, and
1329 sprintf (casting to double). The gconvert_preference and
1330 gconvert_ld_preference variables can be used to alter Configure's
1331 preferences, for doubles and long doubles, respectively. If
1332 present, they contain a space-separated list of one or more of the
1333 above function names in the order they should be tried.
1334 d_Gconvert may be set to override Configure with a platform-
1336 specific function. If this function expects a double, a different
1337 value may need to be set by the uselongdouble.cbu call-back unit so
1338 that long doubles can be formatted without loss of precision.
1339 "d_gdbm_ndbm_h_uses_prototypes"
1341 From i_ndbm.U:
1342 This variable conditionally defines the "NDBM_H_USES_PROTOTYPES"
1344 symbol, which indicates that the gdbm-ndbm.h include file uses real
1345 "ANSI" C prototypes instead of K&R style function declarations. K&R
1346 style declarations are unsupported in C++, so the include file
1347 requires special handling when using a C++ compiler and this
1348 variable is undefined. Consult the different
1349 d_*ndbm_h_uses_prototypes variables to get the same information for
1350 alternative ndbm.h include files.
1351 "d_gdbmndbm_h_uses_prototypes"
1353 From i_ndbm.U:
1354 This variable conditionally defines the "NDBM_H_USES_PROTOTYPES"
1356 symbol, which indicates that the gdbm/ndbm.h include file uses real
1357 "ANSI" C prototypes instead of K&R style function declarations. K&R
1358 style declarations are unsupported in C++, so the include file
1359 requires special handling when using a C++ compiler and this
1360 variable is undefined. Consult the different
1361 d_*ndbm_h_uses_prototypes variables to get the same information for
1362 alternative ndbm.h include files.
1363 "d_getaddrinfo"
1365 From d_getaddrinfo.U:
1366 This variable conditionally defines the "HAS_GETADDRINFO" symbol,
1368 which indicates to the C program that the getaddrinfo() function is
1369 available.
1370 "d_getcwd"
1372 From d_getcwd.U:
1373 This variable conditionally defines the "HAS_GETCWD" symbol, which
1375 indicates to the C program that the getcwd() routine is available
1376 to get the current working directory.
1377 "d_getespwnam"
1379 From d_getespwnam.U:
1380 This variable conditionally defines "HAS_GETESPWNAM" if
1382 getespwnam() is available to retrieve enchanced (shadow) password
1383 entries by name.
1384 "d_getfsstat"
1386 From d_getfsstat.U:
1387 This variable conditionally defines the "HAS_GETFSSTAT" symbol,
1389 which indicates to the C program that the getfsstat() routine is
1390 available.
1391 "d_getgrent"
1393 From d_getgrent.U:
1394 This variable conditionally defines the "HAS_GETGRENT" symbol,
1396 which indicates to the C program that the getgrent() routine is
1397 available for sequential access of the group database.
1398 "d_getgrent_r"
1400 From d_getgrent_r.U:
1401 This variable conditionally defines the "HAS_GETGRENT_R" symbol,
1403 which indicates to the C program that the getgrent_r() routine is
1404 available.
1405 "d_getgrgid_r"
1407 From d_getgrgid_r.U:
1408 This variable conditionally defines the "HAS_GETGRGID_R" symbol,
1410 which indicates to the C program that the getgrgid_r() routine is
1411 available.
1412 "d_getgrnam_r"
1414 From d_getgrnam_r.U:
1415 This variable conditionally defines the "HAS_GETGRNAM_R" symbol,
1417 which indicates to the C program that the getgrnam_r() routine is
1418 available.
1419 "d_getgrps"
1421 From d_getgrps.U:
1422 This variable conditionally defines the "HAS_GETGROUPS" symbol,
1424 which indicates to the C program that the getgroups() routine is
1425 available to get the list of process groups.
1426 "d_gethbyaddr"
1428 From d_gethbyad.U:
1429 This variable conditionally defines the "HAS_GETHOSTBYADDR" symbol,
1431 which indicates to the C program that the gethostbyaddr() routine
1432 is available to look up hosts by their "IP" addresses.
1433 "d_gethbyname"
1435 From d_gethbynm.U:
1436 This variable conditionally defines the "HAS_GETHOSTBYNAME" symbol,
1438 which indicates to the C program that the gethostbyname() routine
1439 is available to look up host names in some data base or other.
1440 "d_gethent"
1442 From d_gethent.U:
1443 This variable conditionally defines "HAS_GETHOSTENT" if
1445 gethostent() is available to look up host names in some data base
1446 or another.
1447 "d_gethname"
1449 From d_gethname.U:
1450 This variable conditionally defines the "HAS_GETHOSTNAME" symbol,
1452 which indicates to the C program that the gethostname() routine may
1453 be used to derive the host name.
1454 "d_gethostbyaddr_r"
1456 From d_gethostbyaddr_r.U:
1457 This variable conditionally defines the "HAS_GETHOSTBYADDR_R"
1459 symbol, which indicates to the C program that the gethostbyaddr_r()
1460 routine is available.
1461 "d_gethostbyname_r"
1463 From d_gethostbyname_r.U:
1464 This variable conditionally defines the "HAS_GETHOSTBYNAME_R"
1466 symbol, which indicates to the C program that the gethostbyname_r()
1467 routine is available.
1468 "d_gethostent_r"
1470 From d_gethostent_r.U:
1471 This variable conditionally defines the "HAS_GETHOSTENT_R" symbol,
1473 which indicates to the C program that the gethostent_r() routine is
1474 available.
1475 "d_gethostprotos"
1477 From d_gethostprotos.U:
1478 This variable conditionally defines the "HAS_GETHOST_PROTOS"
1480 symbol, which indicates to the C program that <netdb.h> supplies
1481 prototypes for the various gethost*() functions. See also
1482 netdbtype.U for probing for various netdb types.
1483 "d_getitimer"
1485 From d_getitimer.U:
1486 This variable conditionally defines the "HAS_GETITIMER" symbol,
1488 which indicates to the C program that the getitimer() routine is
1489 available.
1490 "d_getlogin"
1492 From d_getlogin.U:
1493 This variable conditionally defines the "HAS_GETLOGIN" symbol,
1495 which indicates to the C program that the getlogin() routine is
1496 available to get the login name.
1497 "d_getlogin_r"
1499 From d_getlogin_r.U:
1500 This variable conditionally defines the "HAS_GETLOGIN_R" symbol,
1502 which indicates to the C program that the getlogin_r() routine is
1503 available.
1504 "d_getmnt"
1506 From d_getmnt.U:
1507 This variable conditionally defines the "HAS_GETMNT" symbol, which
1509 indicates to the C program that the getmnt() routine is available
1510 to retrieve one or more mount info blocks by filename.
1511 "d_getmntent"
1513 From d_getmntent.U:
1514 This variable conditionally defines the "HAS_GETMNTENT" symbol,
1516 which indicates to the C program that the getmntent() routine is
1517 available to iterate through mounted files to get their mount info.
1518 "d_getnameinfo"
1520 From d_getnameinfo.U:
1521 This variable conditionally defines the "HAS_GETNAMEINFO" symbol,
1523 which indicates to the C program that the getnameinfo() function is
1524 available.
1525 "d_getnbyaddr"
1527 From d_getnbyad.U:
1528 This variable conditionally defines the "HAS_GETNETBYADDR" symbol,
1530 which indicates to the C program that the getnetbyaddr() routine is
1531 available to look up networks by their "IP" addresses.
1532 "d_getnbyname"
1534 From d_getnbynm.U:
1535 This variable conditionally defines the "HAS_GETNETBYNAME" symbol,
1537 which indicates to the C program that the getnetbyname() routine is
1538 available to look up networks by their names.
1539 "d_getnent"
1541 From d_getnent.U:
1542 This variable conditionally defines "HAS_GETNETENT" if getnetent()
1544 is available to look up network names in some data base or another.
1545 "d_getnetbyaddr_r"
1547 From d_getnetbyaddr_r.U:
1548 This variable conditionally defines the "HAS_GETNETBYADDR_R"
1550 symbol, which indicates to the C program that the getnetbyaddr_r()
1551 routine is available.
1552 "d_getnetbyname_r"
1554 From d_getnetbyname_r.U:
1555 This variable conditionally defines the "HAS_GETNETBYNAME_R"
1557 symbol, which indicates to the C program that the getnetbyname_r()
1558 routine is available.
1559 "d_getnetent_r"
1561 From d_getnetent_r.U:
1562 This variable conditionally defines the "HAS_GETNETENT_R" symbol,
1564 which indicates to the C program that the getnetent_r() routine is
1565 available.
1566 "d_getnetprotos"
1568 From d_getnetprotos.U:
1569 This variable conditionally defines the "HAS_GETNET_PROTOS" symbol,
1571 which indicates to the C program that <netdb.h> supplies prototypes
1572 for the various getnet*() functions. See also netdbtype.U for
1573 probing for various netdb types.
1574 "d_getpagsz"
1576 From d_getpagsz.U:
1577 This variable conditionally defines "HAS_GETPAGESIZE" if
1579 getpagesize() is available to get the system page size.
1580 "d_getpbyname"
1582 From d_getprotby.U:
1583 This variable conditionally defines the "HAS_GETPROTOBYNAME"
1585 symbol, which indicates to the C program that the getprotobyname()
1586 routine is available to look up protocols by their name.
1587 "d_getpbynumber"
1589 From d_getprotby.U:
1590 This variable conditionally defines the "HAS_GETPROTOBYNUMBER"
1592 symbol, which indicates to the C program that the
1593 getprotobynumber() routine is available to look up protocols by
1594 their number.
1595 "d_getpent"
1597 From d_getpent.U:
1598 This variable conditionally defines "HAS_GETPROTOENT" if
1600 getprotoent() is available to look up protocols in some data base
1601 or another.
1602 "d_getpgid"
1604 From d_getpgid.U:
1605 This variable conditionally defines the "HAS_GETPGID" symbol, which
1607 indicates to the C program that the getpgid(pid) function is
1608 available to get the process group id.
1609 "d_getpgrp"
1611 From d_getpgrp.U:
1612 This variable conditionally defines "HAS_GETPGRP" if getpgrp() is
1614 available to get the current process group.
1615 "d_getpgrp2"
1617 From d_getpgrp2.U:
1618 This variable conditionally defines the HAS_GETPGRP2 symbol, which
1620 indicates to the C program that the getpgrp2() (as in DG/"UX")
1621 routine is available to get the current process group.
1622 "d_getppid"
1624 From d_getppid.U:
1625 This variable conditionally defines the "HAS_GETPPID" symbol, which
1627 indicates to the C program that the getppid() routine is available
1628 to get the parent process "ID".
1629 "d_getprior"
1631 From d_getprior.U:
1632 This variable conditionally defines "HAS_GETPRIORITY" if
1634 getpriority() is available to get a process's priority.
1635 "d_getprotobyname_r"
1637 From d_getprotobyname_r.U:
1638 This variable conditionally defines the "HAS_GETPROTOBYNAME_R"
1640 symbol, which indicates to the C program that the
1641 getprotobyname_r() routine is available.
1642 "d_getprotobynumber_r"
1644 From d_getprotobynumber_r.U:
1645 This variable conditionally defines the "HAS_GETPROTOBYNUMBER_R"
1647 symbol, which indicates to the C program that the
1648 getprotobynumber_r() routine is available.
1649 "d_getprotoent_r"
1651 From d_getprotoent_r.U:
1652 This variable conditionally defines the "HAS_GETPROTOENT_R" symbol,
1654 which indicates to the C program that the getprotoent_r() routine
1655 is available.
1656 "d_getprotoprotos"
1658 From d_getprotoprotos.U:
1659 This variable conditionally defines the "HAS_GETPROTO_PROTOS"
1661 symbol, which indicates to the C program that <netdb.h> supplies
1662 prototypes for the various getproto*() functions. See also
1663 netdbtype.U for probing for various netdb types.
1664 "d_getprpwnam"
1666 From d_getprpwnam.U:
1667 This variable conditionally defines "HAS_GETPRPWNAM" if
1669 getprpwnam() is available to retrieve protected (shadow) password
1670 entries by name.
1671 "d_getpwent"
1673 From d_getpwent.U:
1674 This variable conditionally defines the "HAS_GETPWENT" symbol,
1676 which indicates to the C program that the getpwent() routine is
1677 available for sequential access of the passwd database.
1678 "d_getpwent_r"
1680 From d_getpwent_r.U:
1681 This variable conditionally defines the "HAS_GETPWENT_R" symbol,
1683 which indicates to the C program that the getpwent_r() routine is
1684 available.
1685 "d_getpwnam_r"
1687 From d_getpwnam_r.U:
1688 This variable conditionally defines the "HAS_GETPWNAM_R" symbol,
1690 which indicates to the C program that the getpwnam_r() routine is
1691 available.
1692 "d_getpwuid_r"
1694 From d_getpwuid_r.U:
1695 This variable conditionally defines the "HAS_GETPWUID_R" symbol,
1697 which indicates to the C program that the getpwuid_r() routine is
1698 available.
1699 "d_getsbyname"
1701 From d_getsrvby.U:
1702 This variable conditionally defines the "HAS_GETSERVBYNAME" symbol,
1704 which indicates to the C program that the getservbyname() routine
1705 is available to look up services by their name.
1706 "d_getsbyport"
1708 From d_getsrvby.U:
1709 This variable conditionally defines the "HAS_GETSERVBYPORT" symbol,
1711 which indicates to the C program that the getservbyport() routine
1712 is available to look up services by their port.
1713 "d_getsent"
1715 From d_getsent.U:
1716 This variable conditionally defines "HAS_GETSERVENT" if
1718 getservent() is available to look up network services in some data
1719 base or another.
1720 "d_getservbyname_r"
1722 From d_getservbyname_r.U:
1723 This variable conditionally defines the "HAS_GETSERVBYNAME_R"
1725 symbol, which indicates to the C program that the getservbyname_r()
1726 routine is available.
1727 "d_getservbyport_r"
1729 From d_getservbyport_r.U:
1730 This variable conditionally defines the "HAS_GETSERVBYPORT_R"
1732 symbol, which indicates to the C program that the getservbyport_r()
1733 routine is available.
1734 "d_getservent_r"
1736 From d_getservent_r.U:
1737 This variable conditionally defines the "HAS_GETSERVENT_R" symbol,
1739 which indicates to the C program that the getservent_r() routine is
1740 available.
1741 "d_getservprotos"
1743 From d_getservprotos.U:
1744 This variable conditionally defines the "HAS_GETSERV_PROTOS"
1746 symbol, which indicates to the C program that <netdb.h> supplies
1747 prototypes for the various getserv*() functions. See also
1748 netdbtype.U for probing for various netdb types.
1749 "d_getspnam"
1751 From d_getspnam.U:
1752 This variable conditionally defines "HAS_GETSPNAM" if getspnam() is
1754 available to retrieve SysV shadow password entries by name.
1755 "d_getspnam_r"
1757 From d_getspnam_r.U:
1758 This variable conditionally defines the "HAS_GETSPNAM_R" symbol,
1760 which indicates to the C program that the getspnam_r() routine is
1761 available.
1762 "d_gettimeod"
1764 From d_ftime.U:
1765 This variable conditionally defines the "HAS_GETTIMEOFDAY" symbol,
1767 which indicates that the gettimeofday() system call exists (to
1768 obtain a sub-second accuracy clock). You should probably include
1769 <sys/resource.h>.
1770 "d_gmtime64"
1772 From d_timefuncs64.U:
1773 This variable conditionally defines the HAS_GMTIME64 symbol, which
1775 indicates to the C program that the gmtime64 () routine is
1776 available.
1777 "d_gmtime_r"
1779 From d_gmtime_r.U:
1780 This variable conditionally defines the "HAS_GMTIME_R" symbol,
1782 which indicates to the C program that the gmtime_r() routine is
1783 available.
1784 "d_gnulibc"
1786 From d_gnulibc.U:
1787 Defined if we're dealing with the "GNU" C Library.
1789 "d_grpasswd"
1791 From i_grp.U:
1792 This variable conditionally defines "GRPASSWD", which indicates
1794 that struct group in <grp.h> contains gr_passwd.
1795 "d_hasmntopt"
1797 From d_hasmntopt.U:
1798 This variable conditionally defines the "HAS_HASMNTOPT" symbol,
1800 which indicates to the C program that the hasmntopt() routine is
1801 available to query the mount options of file systems.
1802 "d_htonl"
1804 From d_htonl.U:
1805 This variable conditionally defines "HAS_HTONL" if htonl() and its
1807 friends are available to do network order byte swapping.
1808 "d_ilogbl"
1810 From d_ilogbl.U:
1811 This variable conditionally defines the "HAS_ILOGBL" symbol, which
1813 indicates to the C program that the ilogbl() routine is available.
1814 If scalbnl is also present we can emulate frexpl.
1815 "d_inc_version_list"
1817 From inc_version_list.U:
1818 This variable conditionally defines "PERL_INC_VERSION_LIST". It is
1820 set to undef when "PERL_INC_VERSION_LIST" is empty.
1821 "d_index"
1823 From d_strchr.U:
1824 This variable conditionally defines "HAS_INDEX" if index() and
1826 rindex() are available for string searching.
1827 "d_inetaton"
1829 From d_inetaton.U:
1830 This variable conditionally defines the "HAS_INET_ATON" symbol,
1832 which indicates to the C program that the inet_aton() function is
1833 available to parse "IP" address "dotted-quad" strings.
1834 "d_inetntop"
1836 From d_inetntop.U:
1837 This variable conditionally defines the "HAS_INETNTOP" symbol,
1839 which indicates to the C program that the inet_ntop() function is
1840 available.
1841 "d_inetpton"
1843 From d_inetpton.U:
1844 This variable conditionally defines the "HAS_INETPTON" symbol,
1846 which indicates to the C program that the inet_pton() function is
1847 available.
1848 "d_int64_t"
1850 From d_int64_t.U:
1851 This symbol will be defined if the C compiler supports int64_t.
1853 "d_isascii"
1855 From d_isascii.U:
1856 This variable conditionally defines the "HAS_ISASCII" constant,
1858 which indicates to the C program that isascii() is available.
1859 "d_isfinite"
1861 From d_isfinite.U:
1862 This variable conditionally defines the "HAS_ISFINITE" symbol,
1864 which indicates to the C program that the isfinite() routine is
1865 available.
1866 "d_isinf"
1868 From d_isinf.U:
1869 This variable conditionally defines the "HAS_ISINF" symbol, which
1871 indicates to the C program that the isinf() routine is available.
1872 "d_isnan"
1874 From d_isnan.U:
1875 This variable conditionally defines the "HAS_ISNAN" symbol, which
1877 indicates to the C program that the isnan() routine is available.
1878 "d_isnanl"
1880 From d_isnanl.U:
1881 This variable conditionally defines the "HAS_ISNANL" symbol, which
1883 indicates to the C program that the isnanl() routine is available.
1884 "d_killpg"
1886 From d_killpg.U:
1887 This variable conditionally defines the "HAS_KILLPG" symbol, which
1889 indicates to the C program that the killpg() routine is available
1890 to kill process groups.
1891 "d_lchown"
1893 From d_lchown.U:
1894 This variable conditionally defines the "HAS_LCHOWN" symbol, which
1896 indicates to the C program that the lchown() routine is available
1897 to operate on a symbolic link (instead of following the link).
1898 "d_ldbl_dig"
1900 From d_ldbl_dig.U:
1901 This variable conditionally defines d_ldbl_dig if this system's
1903 header files provide "LDBL_DIG", which is the number of significant
1904 digits in a long double precision number.
1905 "d_libm_lib_version"
1907 From d_libm_lib_version.U:
1908 This variable conditionally defines the "LIBM_LIB_VERSION" symbol,
1910 which indicates to the C program that math.h defines "_LIB_VERSION"
1911 being available in libm
1912 "d_link"
1914 From d_link.U:
1915 This variable conditionally defines "HAS_LINK" if link() is
1917 available to create hard links.
1918 "d_localtime64"
1920 From d_timefuncs64.U:
1921 This variable conditionally defines the HAS_LOCALTIME64 symbol,
1923 which indicates to the C program that the localtime64 () routine is
1924 available.
1925 "d_localtime_r"
1927 From d_localtime_r.U:
1928 This variable conditionally defines the "HAS_LOCALTIME_R" symbol,
1930 which indicates to the C program that the localtime_r() routine is
1931 available.
1932 "d_localtime_r_needs_tzset"
1934 From d_localtime_r.U:
1935 This variable conditionally defines the "LOCALTIME_R_NEEDS_TZSET"
1937 symbol, which makes us call tzset before localtime_r()
1938 "d_locconv"
1940 From d_locconv.U:
1941 This variable conditionally defines "HAS_LOCALECONV" if
1943 localeconv() is available for numeric and monetary formatting
1944 conventions.
1945 "d_lockf"
1947 From d_lockf.U:
1948 This variable conditionally defines "HAS_LOCKF" if lockf() is
1950 available to do file locking.
1951 "d_longdbl"
1953 From d_longdbl.U:
1954 This variable conditionally defines "HAS_LONG_DOUBLE" if the long
1956 double type is supported.
1957 "d_longlong"
1959 From d_longlong.U:
1960 This variable conditionally defines "HAS_LONG_LONG" if the long
1962 long type is supported.
1963 "d_lseekproto"
1965 From d_lseekproto.U:
1966 This variable conditionally defines the "HAS_LSEEK_PROTO" symbol,
1968 which indicates to the C program that the system provides a
1969 prototype for the lseek() function. Otherwise, it is up to the
1970 program to supply one.
1971 "d_lstat"
1973 From d_lstat.U:
1974 This variable conditionally defines "HAS_LSTAT" if lstat() is
1976 available to do file stats on symbolic links.
1977 "d_madvise"
1979 From d_madvise.U:
1980 This variable conditionally defines "HAS_MADVISE" if madvise() is
1982 available to map a file into memory.
1983 "d_malloc_good_size"
1985 From d_malloc_size.U:
1986 This symbol, if defined, indicates that the malloc_good_size
1988 routine is available for use.
1989 "d_malloc_size"
1991 From d_malloc_size.U:
1992 This symbol, if defined, indicates that the malloc_size routine is
1994 available for use.
1995 "d_mblen"
1997 From d_mblen.U:
1998 This variable conditionally defines the "HAS_MBLEN" symbol, which
2000 indicates to the C program that the mblen() routine is available to
2001 find the number of bytes in a multibye character.
2002 "d_mbstowcs"
2004 From d_mbstowcs.U:
2005 This variable conditionally defines the "HAS_MBSTOWCS" symbol,
2007 which indicates to the C program that the mbstowcs() routine is
2008 available to convert a multibyte string into a wide character
2009 string.
2010 "d_mbtowc"
2012 From d_mbtowc.U:
2013 This variable conditionally defines the "HAS_MBTOWC" symbol, which
2015 indicates to the C program that the mbtowc() routine is available
2016 to convert multibyte to a wide character.
2017 "d_memchr"
2019 From d_memchr.U:
2020 This variable conditionally defines the "HAS_MEMCHR" symbol, which
2022 indicates to the C program that the memchr() routine is available
2023 to locate characters within a C string.
2024 "d_memcmp"
2026 From d_memcmp.U:
2027 This variable conditionally defines the "HAS_MEMCMP" symbol, which
2029 indicates to the C program that the memcmp() routine is available
2030 to compare blocks of memory.
2031 "d_memcpy"
2033 From d_memcpy.U:
2034 This variable conditionally defines the "HAS_MEMCPY" symbol, which
2036 indicates to the C program that the memcpy() routine is available
2037 to copy blocks of memory.
2038 "d_memmove"
2040 From d_memmove.U:
2041 This variable conditionally defines the "HAS_MEMMOVE" symbol, which
2043 indicates to the C program that the memmove() routine is available
2044 to copy potentatially overlapping blocks of memory.
2045 "d_memset"
2047 From d_memset.U:
2048 This variable conditionally defines the "HAS_MEMSET" symbol, which
2050 indicates to the C program that the memset() routine is available
2051 to set blocks of memory.
2052 "d_mkdir"
2054 From d_mkdir.U:
2055 This variable conditionally defines the "HAS_MKDIR" symbol, which
2057 indicates to the C program that the mkdir() routine is available to
2058 create directories..
2059 "d_mkdtemp"
2061 From d_mkdtemp.U:
2062 This variable conditionally defines the "HAS_MKDTEMP" symbol, which
2064 indicates to the C program that the mkdtemp() routine is available
2065 to exclusively create a uniquely named temporary directory.
2066 "d_mkfifo"
2068 From d_mkfifo.U:
2069 This variable conditionally defines the "HAS_MKFIFO" symbol, which
2071 indicates to the C program that the mkfifo() routine is available.
2072 "d_mkstemp"
2074 From d_mkstemp.U:
2075 This variable conditionally defines the "HAS_MKSTEMP" symbol, which
2077 indicates to the C program that the mkstemp() routine is available
2078 to exclusively create and open a uniquely named temporary file.
2079 "d_mkstemps"
2081 From d_mkstemps.U:
2082 This variable conditionally defines the "HAS_MKSTEMPS" symbol,
2084 which indicates to the C program that the mkstemps() routine is
2085 available to exclusively create and open a uniquely named (with a
2086 suffix) temporary file.
2087 "d_mktime"
2089 From d_mktime.U:
2090 This variable conditionally defines the "HAS_MKTIME" symbol, which
2092 indicates to the C program that the mktime() routine is available.
2093 "d_mktime64"
2095 From d_timefuncs64.U:
2096 This variable conditionally defines the HAS_MKTIME64 symbol, which
2098 indicates to the C program that the mktime64 () routine is
2099 available.
2100 "d_mmap"
2102 From d_mmap.U:
2103 This variable conditionally defines "HAS_MMAP" if mmap() is
2105 available to map a file into memory.
2106 "d_modfl"
2108 From d_modfl.U:
2109 This variable conditionally defines the "HAS_MODFL" symbol, which
2111 indicates to the C program that the modfl() routine is available.
2112 "d_modfl_pow32_bug"
2114 From d_modfl.U:
2115 This variable conditionally defines the HAS_MODFL_POW32_BUG symbol,
2117 which indicates that modfl() is broken for long doubles >= pow(2,
2118 32). For example from 4294967303.150000 one would get
2119 4294967302.000000 and 1.150000. The bug has been seen in certain
2120 versions of glibc, release 2.2.2 is known to be okay.
2121 "d_modflproto"
2123 From d_modfl.U:
2124 This symbol, if defined, indicates that the system provides a
2126 prototype for the modfl() function. Otherwise, it is up to the
2127 program to supply one. C99 says it should be long double
2128 modfl(long double, long double *);
2129 "d_mprotect"
2131 From d_mprotect.U:
2132 This variable conditionally defines "HAS_MPROTECT" if mprotect() is
2134 available to modify the access protection of a memory mapped file.
2135 "d_msg"
2137 From d_msg.U:
2138 This variable conditionally defines the "HAS_MSG" symbol, which
2140 indicates that the entire msg*(2) library is present.
2141 "d_msg_ctrunc"
2143 From d_socket.U:
2144 This variable conditionally defines the "HAS_MSG_CTRUNC" symbol,
2146 which indicates that the "MSG_CTRUNC" is available. #ifdef is not
2147 enough because it may be an enum, glibc has been known to do this.
2148 "d_msg_dontroute"
2150 From d_socket.U:
2151 This variable conditionally defines the "HAS_MSG_DONTROUTE" symbol,
2153 which indicates that the "MSG_DONTROUTE" is available. #ifdef is
2154 not enough because it may be an enum, glibc has been known to do
2155 this.
2156 "d_msg_oob"
2158 From d_socket.U:
2159 This variable conditionally defines the "HAS_MSG_OOB" symbol, which
2161 indicates that the "MSG_OOB" is available. #ifdef is not enough
2162 because it may be an enum, glibc has been known to do this.
2163 "d_msg_peek"
2165 From d_socket.U:
2166 This variable conditionally defines the "HAS_MSG_PEEK" symbol,
2168 which indicates that the "MSG_PEEK" is available. #ifdef is not
2169 enough because it may be an enum, glibc has been known to do this.
2170 "d_msg_proxy"
2172 From d_socket.U:
2173 This variable conditionally defines the "HAS_MSG_PROXY" symbol,
2175 which indicates that the "MSG_PROXY" is available. #ifdef is not
2176 enough because it may be an enum, glibc has been known to do this.
2177 "d_msgctl"
2179 From d_msgctl.U:
2180 This variable conditionally defines the "HAS_MSGCTL" symbol, which
2182 indicates to the C program that the msgctl() routine is available.
2183 "d_msgget"
2185 From d_msgget.U:
2186 This variable conditionally defines the "HAS_MSGGET" symbol, which
2188 indicates to the C program that the msgget() routine is available.
2189 "d_msghdr_s"
2191 From d_msghdr_s.U:
2192 This variable conditionally defines the "HAS_STRUCT_MSGHDR" symbol,
2194 which indicates that the struct msghdr is supported.
2195 "d_msgrcv"
2197 From d_msgrcv.U:
2198 This variable conditionally defines the "HAS_MSGRCV" symbol, which
2200 indicates to the C program that the msgrcv() routine is available.
2201 "d_msgsnd"
2203 From d_msgsnd.U:
2204 This variable conditionally defines the "HAS_MSGSND" symbol, which
2206 indicates to the C program that the msgsnd() routine is available.
2207 "d_msync"
2209 From d_msync.U:
2210 This variable conditionally defines "HAS_MSYNC" if msync() is
2212 available to synchronize a mapped file.
2213 "d_munmap"
2215 From d_munmap.U:
2216 This variable conditionally defines "HAS_MUNMAP" if munmap() is
2218 available to unmap a region mapped by mmap().
2219 "d_mymalloc"
2221 From mallocsrc.U:
2222 This variable conditionally defines "MYMALLOC" in case other parts
2224 of the source want to take special action if "MYMALLOC" is used.
2225 This may include different sorts of profiling or error detection.
2226 "d_ndbm"
2228 From i_ndbm.U:
2229 This variable conditionally defines the "HAS_NDBM" symbol, which
2231 indicates that both the ndbm.h include file and an appropriate ndbm
2232 library exist. Consult the different i_*ndbm variables to find out
2233 the actual include location. Sometimes, a system has the header
2234 file but not the library. This variable will only be set if the
2235 system has both.
2236 "d_ndbm_h_uses_prototypes"
2238 From i_ndbm.U:
2239 This variable conditionally defines the "NDBM_H_USES_PROTOTYPES"
2241 symbol, which indicates that the ndbm.h include file uses real
2242 "ANSI" C prototypes instead of K&R style function declarations. K&R
2243 style declarations are unsupported in C++, so the include file
2244 requires special handling when using a C++ compiler and this
2245 variable is undefined. Consult the different
2246 d_*ndbm_h_uses_prototypes variables to get the same information for
2247 alternative ndbm.h include files.
2248 "d_nice"
2250 From d_nice.U:
2251 This variable conditionally defines the "HAS_NICE" symbol, which
2253 indicates to the C program that the nice() routine is available.
2254 "d_nl_langinfo"
2256 From d_nl_langinfo.U:
2257 This variable conditionally defines the "HAS_NL_LANGINFO" symbol,
2259 which indicates to the C program that the nl_langinfo() routine is
2260 available.
2261 "d_nv_preserves_uv"
2263 From perlxv.U:
2264 This variable indicates whether a variable of type nvtype can
2266 preserve all the bits a variable of type uvtype.
2267 "d_nv_zero_is_allbits_zero"
2269 From perlxv.U:
2270 This variable indicates whether a variable of type nvtype stores
2272 0.0 in memory as all bits zero.
2273 "d_off64_t"
2275 From d_off64_t.U:
2276 This symbol will be defined if the C compiler supports off64_t.
2278 "d_old_pthread_create_joinable"
2280 From d_pthrattrj.U:
2281 This variable conditionally defines pthread_create_joinable. undef
2283 if pthread.h defines "PTHREAD_CREATE_JOINABLE".
2284 "d_oldpthreads"
2286 From usethreads.U:
2287 This variable conditionally defines the "OLD_PTHREADS_API" symbol,
2289 and indicates that Perl should be built to use the old draft
2290 "POSIX" threads "API". This is only potentially meaningful if
2291 usethreads is set.
2292 "d_oldsock"
2294 From d_socket.U:
2295 This variable conditionally defines the "OLDSOCKET" symbol, which
2297 indicates that the "BSD" socket interface is based on 4.1c and not
2298 4.2.
2299 "d_open3"
2301 From d_open3.U:
2302 This variable conditionally defines the HAS_OPEN3 manifest
2304 constant, which indicates to the C program that the 3 argument
2305 version of the open(2) function is available.
2306 "d_pathconf"
2308 From d_pathconf.U:
2309 This variable conditionally defines the "HAS_PATHCONF" symbol,
2311 which indicates to the C program that the pathconf() routine is
2312 available to determine file-system related limits and options
2313 associated with a given filename.
2314 "d_pause"
2316 From d_pause.U:
2317 This variable conditionally defines the "HAS_PAUSE" symbol, which
2319 indicates to the C program that the pause() routine is available to
2320 suspend a process until a signal is received.
2321 "d_perl_otherlibdirs"
2323 From otherlibdirs.U:
2324 This variable conditionally defines "PERL_OTHERLIBDIRS", which
2326 contains a colon-separated set of paths for the perl binary to
2327 include in @"INC". See also otherlibdirs.
2328 "d_phostname"
2330 From d_gethname.U:
2331 This variable conditionally defines the "HAS_PHOSTNAME" symbol,
2333 which contains the shell command which, when fed to popen(), may be
2334 used to derive the host name.
2335 "d_pipe"
2337 From d_pipe.U:
2338 This variable conditionally defines the "HAS_PIPE" symbol, which
2340 indicates to the C program that the pipe() routine is available to
2341 create an inter-process channel.
2342 "d_poll"
2344 From d_poll.U:
2345 This variable conditionally defines the "HAS_POLL" symbol, which
2347 indicates to the C program that the poll() routine is available to
2348 poll active file descriptors.
2349 "d_portable"
2351 From d_portable.U:
2352 This variable conditionally defines the "PORTABLE" symbol, which
2354 indicates to the C program that it should not assume that it is
2355 running on the machine it was compiled on.
2356 "d_PRId64"
2358 From quadfio.U:
2359 This variable conditionally defines the PERL_PRId64 symbol, which
2361 indiciates that stdio has a symbol to print 64-bit decimal numbers.
2362 "d_PRIeldbl"
2364 From longdblfio.U:
2365 This variable conditionally defines the PERL_PRIfldbl symbol, which
2367 indiciates that stdio has a symbol to print long doubles.
2368 "d_PRIEUldbl"
2370 From longdblfio.U:
2371 This variable conditionally defines the PERL_PRIfldbl symbol, which
2373 indiciates that stdio has a symbol to print long doubles. The "U"
2374 in the name is to separate this from d_PRIeldbl so that even case-
2375 blind systems can see the difference.
2376 "d_PRIfldbl"
2378 From longdblfio.U:
2379 This variable conditionally defines the PERL_PRIfldbl symbol, which
2381 indiciates that stdio has a symbol to print long doubles.
2382 "d_PRIFUldbl"
2384 From longdblfio.U:
2385 This variable conditionally defines the PERL_PRIfldbl symbol, which
2387 indiciates that stdio has a symbol to print long doubles. The "U"
2388 in the name is to separate this from d_PRIfldbl so that even case-
2389 blind systems can see the difference.
2390 "d_PRIgldbl"
2392 From longdblfio.U:
2393 This variable conditionally defines the PERL_PRIfldbl symbol, which
2395 indiciates that stdio has a symbol to print long doubles.
2396 "d_PRIGUldbl"
2398 From longdblfio.U:
2399 This variable conditionally defines the PERL_PRIfldbl symbol, which
2401 indiciates that stdio has a symbol to print long doubles. The "U"
2402 in the name is to separate this from d_PRIgldbl so that even case-
2403 blind systems can see the difference.
2404 "d_PRIi64"
2406 From quadfio.U:
2407 This variable conditionally defines the PERL_PRIi64 symbol, which
2409 indiciates that stdio has a symbol to print 64-bit decimal numbers.
2410 "d_printf_format_null"
2412 From d_attribut.U:
2413 This variable conditionally defines "PRINTF_FORMAT_NULL_OK", which
2415 indicates the C compiler allows printf-like formats to be null.
2416 "d_PRIo64"
2418 From quadfio.U:
2419 This variable conditionally defines the PERL_PRIo64 symbol, which
2421 indiciates that stdio has a symbol to print 64-bit octal numbers.
2422 "d_PRIu64"
2424 From quadfio.U:
2425 This variable conditionally defines the PERL_PRIu64 symbol, which
2427 indiciates that stdio has a symbol to print 64-bit unsigned decimal
2428 numbers.
2429 "d_PRIx64"
2431 From quadfio.U:
2432 This variable conditionally defines the PERL_PRIx64 symbol, which
2434 indiciates that stdio has a symbol to print 64-bit hexadecimal
2435 numbers.
2436 "d_PRIXU64"
2438 From quadfio.U:
2439 This variable conditionally defines the PERL_PRIXU64 symbol, which
2441 indiciates that stdio has a symbol to print 64-bit hExADECimAl
2442 numbers. The "U" in the name is to separate this from d_PRIx64 so
2443 that even case-blind systems can see the difference.
2444 "d_procselfexe"
2446 From d_procselfexe.U:
2447 Defined if $procselfexe is symlink to the absolute pathname of the
2449 executing program.
2450 "d_pseudofork"
2452 From d_vfork.U:
2453 This variable conditionally defines the "HAS_PSEUDOFORK" symbol,
2455 which indicates that an emulation of the fork routine is available.
2456 "d_pthread_atfork"
2458 From d_pthread_atfork.U:
2459 This variable conditionally defines the "HAS_PTHREAD_ATFORK"
2461 symbol, which indicates to the C program that the pthread_atfork()
2462 routine is available.
2463 "d_pthread_attr_setscope"
2465 From d_pthread_attr_ss.U:
2466 This variable conditionally defines "HAS_PTHREAD_ATTR_SETSCOPE" if
2468 pthread_attr_setscope() is available to set the contention scope
2469 attribute of a thread attribute object.
2470 "d_pthread_yield"
2472 From d_pthread_y.U:
2473 This variable conditionally defines the "HAS_PTHREAD_YIELD" symbol
2475 if the pthread_yield routine is available to yield the execution of
2476 the current thread.
2477 "d_pwage"
2479 From i_pwd.U:
2480 This variable conditionally defines "PWAGE", which indicates that
2482 struct passwd contains pw_age.
2483 "d_pwchange"
2485 From i_pwd.U:
2486 This variable conditionally defines "PWCHANGE", which indicates
2488 that struct passwd contains pw_change.
2489 "d_pwclass"
2491 From i_pwd.U:
2492 This variable conditionally defines "PWCLASS", which indicates that
2494 struct passwd contains pw_class.
2495 "d_pwcomment"
2497 From i_pwd.U:
2498 This variable conditionally defines "PWCOMMENT", which indicates
2500 that struct passwd contains pw_comment.
2501 "d_pwexpire"
2503 From i_pwd.U:
2504 This variable conditionally defines "PWEXPIRE", which indicates
2506 that struct passwd contains pw_expire.
2507 "d_pwgecos"
2509 From i_pwd.U:
2510 This variable conditionally defines "PWGECOS", which indicates that
2512 struct passwd contains pw_gecos.
2513 "d_pwpasswd"
2515 From i_pwd.U:
2516 This variable conditionally defines "PWPASSWD", which indicates
2518 that struct passwd contains pw_passwd.
2519 "d_pwquota"
2521 From i_pwd.U:
2522 This variable conditionally defines "PWQUOTA", which indicates that
2524 struct passwd contains pw_quota.
2525 "d_qgcvt"
2527 From d_qgcvt.U:
2528 This variable conditionally defines the "HAS_QGCVT" symbol, which
2530 indicates to the C program that the qgcvt() routine is available.
2531 "d_quad"
2533 From quadtype.U:
2534 This variable, if defined, tells that there's a 64-bit integer
2536 type, quadtype.
2537 "d_random_r"
2539 From d_random_r.U:
2540 This variable conditionally defines the "HAS_RANDOM_R" symbol,
2542 which indicates to the C program that the random_r() routine is
2543 available.
2544 "d_readdir"
2546 From d_readdir.U:
2547 This variable conditionally defines "HAS_READDIR" if readdir() is
2549 available to read directory entries.
2550 "d_readdir64_r"
2552 From d_readdir64_r.U:
2553 This variable conditionally defines the HAS_READDIR64_R symbol,
2555 which indicates to the C program that the readdir64_r() routine is
2556 available.
2557 "d_readdir_r"
2559 From d_readdir_r.U:
2560 This variable conditionally defines the "HAS_READDIR_R" symbol,
2562 which indicates to the C program that the readdir_r() routine is
2563 available.
2564 "d_readlink"
2566 From d_readlink.U:
2567 This variable conditionally defines the "HAS_READLINK" symbol,
2569 which indicates to the C program that the readlink() routine is
2570 available to read the value of a symbolic link.
2571 "d_readv"
2573 From d_readv.U:
2574 This variable conditionally defines the "HAS_READV" symbol, which
2576 indicates to the C program that the readv() routine is available.
2577 "d_recvmsg"
2579 From d_recvmsg.U:
2580 This variable conditionally defines the "HAS_RECVMSG" symbol, which
2582 indicates to the C program that the recvmsg() routine is available.
2583 "d_rename"
2585 From d_rename.U:
2586 This variable conditionally defines the "HAS_RENAME" symbol, which
2588 indicates to the C program that the rename() routine is available
2589 to rename files.
2590 "d_rewinddir"
2592 From d_readdir.U:
2593 This variable conditionally defines "HAS_REWINDDIR" if rewinddir()
2595 is available.
2596 "d_rmdir"
2598 From d_rmdir.U:
2599 This variable conditionally defines "HAS_RMDIR" if rmdir() is
2601 available to remove directories.
2602 "d_safebcpy"
2604 From d_safebcpy.U:
2605 This variable conditionally defines the "HAS_SAFE_BCOPY" symbol if
2607 the bcopy() routine can do overlapping copies. Normally, you
2608 should probably use memmove().
2609 "d_safemcpy"
2611 From d_safemcpy.U:
2612 This variable conditionally defines the "HAS_SAFE_MEMCPY" symbol if
2614 the memcpy() routine can do overlapping copies. For overlapping
2615 copies, memmove() should be used, if available.
2616 "d_sanemcmp"
2618 From d_sanemcmp.U:
2619 This variable conditionally defines the "HAS_SANE_MEMCMP" symbol if
2621 the memcpy() routine is available and can be used to compare
2622 relative magnitudes of chars with their high bits set.
2623 "d_sbrkproto"
2625 From d_sbrkproto.U:
2626 This variable conditionally defines the "HAS_SBRK_PROTO" symbol,
2628 which indicates to the C program that the system provides a
2629 prototype for the sbrk() function. Otherwise, it is up to the
2630 program to supply one.
2631 "d_scalbnl"
2633 From d_scalbnl.U:
2634 This variable conditionally defines the "HAS_SCALBNL" symbol, which
2636 indicates to the C program that the scalbnl() routine is available.
2637 If ilogbl is also present we can emulate frexpl.
2638 "d_sched_yield"
2640 From d_pthread_y.U:
2641 This variable conditionally defines the "HAS_SCHED_YIELD" symbol if
2643 the sched_yield routine is available to yield the execution of the
2644 current thread.
2645 "d_scm_rights"
2647 From d_socket.U:
2648 This variable conditionally defines the "HAS_SCM_RIGHTS" symbol,
2650 which indicates that the "SCM_RIGHTS" is available. #ifdef is not
2651 enough because it may be an enum, glibc has been known to do this.
2652 "d_SCNfldbl"
2654 From longdblfio.U:
2655 This variable conditionally defines the PERL_PRIfldbl symbol, which
2657 indiciates that stdio has a symbol to scan long doubles.
2658 "d_seekdir"
2660 From d_readdir.U:
2661 This variable conditionally defines "HAS_SEEKDIR" if seekdir() is
2663 available.
2664 "d_select"
2666 From d_select.U:
2667 This variable conditionally defines "HAS_SELECT" if select() is
2669 available to select active file descriptors. A <sys/time.h>
2670 inclusion may be necessary for the timeout field.
2671 "d_sem"
2673 From d_sem.U:
2674 This variable conditionally defines the "HAS_SEM" symbol, which
2676 indicates that the entire sem*(2) library is present.
2677 "d_semctl"
2679 From d_semctl.U:
2680 This variable conditionally defines the "HAS_SEMCTL" symbol, which
2682 indicates to the C program that the semctl() routine is available.
2683 "d_semctl_semid_ds"
2685 From d_union_semun.U:
2686 This variable conditionally defines "USE_SEMCTL_SEMID_DS", which
2688 indicates that struct semid_ds * is to be used for semctl
2689 "IPC_STAT".
2690 "d_semctl_semun"
2692 From d_union_semun.U:
2693 This variable conditionally defines "USE_SEMCTL_SEMUN", which
2695 indicates that union semun is to be used for semctl "IPC_STAT".
2696 "d_semget"
2698 From d_semget.U:
2699 This variable conditionally defines the "HAS_SEMGET" symbol, which
2701 indicates to the C program that the semget() routine is available.
2702 "d_semop"
2704 From d_semop.U:
2705 This variable conditionally defines the "HAS_SEMOP" symbol, which
2707 indicates to the C program that the semop() routine is available.
2708 "d_sendmsg"
2710 From d_sendmsg.U:
2711 This variable conditionally defines the "HAS_SENDMSG" symbol, which
2713 indicates to the C program that the sendmsg() routine is available.
2714 "d_setegid"
2716 From d_setegid.U:
2717 This variable conditionally defines the "HAS_SETEGID" symbol, which
2719 indicates to the C program that the setegid() routine is available
2720 to change the effective gid of the current program.
2721 "d_seteuid"
2723 From d_seteuid.U:
2724 This variable conditionally defines the "HAS_SETEUID" symbol, which
2726 indicates to the C program that the seteuid() routine is available
2727 to change the effective uid of the current program.
2728 "d_setgrent"
2730 From d_setgrent.U:
2731 This variable conditionally defines the "HAS_SETGRENT" symbol,
2733 which indicates to the C program that the setgrent() routine is
2734 available for initializing sequential access to the group database.
2735 "d_setgrent_r"
2737 From d_setgrent_r.U:
2738 This variable conditionally defines the "HAS_SETGRENT_R" symbol,
2740 which indicates to the C program that the setgrent_r() routine is
2741 available.
2742 "d_setgrps"
2744 From d_setgrps.U:
2745 This variable conditionally defines the "HAS_SETGROUPS" symbol,
2747 which indicates to the C program that the setgroups() routine is
2748 available to set the list of process groups.
2749 "d_sethent"
2751 From d_sethent.U:
2752 This variable conditionally defines "HAS_SETHOSTENT" if
2754 sethostent() is available.
2755 "d_sethostent_r"
2757 From d_sethostent_r.U:
2758 This variable conditionally defines the "HAS_SETHOSTENT_R" symbol,
2760 which indicates to the C program that the sethostent_r() routine is
2761 available.
2762 "d_setitimer"
2764 From d_setitimer.U:
2765 This variable conditionally defines the "HAS_SETITIMER" symbol,
2767 which indicates to the C program that the setitimer() routine is
2768 available.
2769 "d_setlinebuf"
2771 From d_setlnbuf.U:
2772 This variable conditionally defines the "HAS_SETLINEBUF" symbol,
2774 which indicates to the C program that the setlinebuf() routine is
2775 available to change stderr or stdout from block-buffered or
2776 unbuffered to a line-buffered mode.
2777 "d_setlocale"
2779 From d_setlocale.U:
2780 This variable conditionally defines "HAS_SETLOCALE" if setlocale()
2782 is available to handle locale-specific ctype implementations.
2783 "d_setlocale_r"
2785 From d_setlocale_r.U:
2786 This variable conditionally defines the "HAS_SETLOCALE_R" symbol,
2788 which indicates to the C program that the setlocale_r() routine is
2789 available.
2790 "d_setnent"
2792 From d_setnent.U:
2793 This variable conditionally defines "HAS_SETNETENT" if setnetent()
2795 is available.
2796 "d_setnetent_r"
2798 From d_setnetent_r.U:
2799 This variable conditionally defines the "HAS_SETNETENT_R" symbol,
2801 which indicates to the C program that the setnetent_r() routine is
2802 available.
2803 "d_setpent"
2805 From d_setpent.U:
2806 This variable conditionally defines "HAS_SETPROTOENT" if
2808 setprotoent() is available.
2809 "d_setpgid"
2811 From d_setpgid.U:
2812 This variable conditionally defines the "HAS_SETPGID" symbol if the
2814 setpgid(pid, gpid) function is available to set process group "ID".
2815 "d_setpgrp"
2817 From d_setpgrp.U:
2818 This variable conditionally defines "HAS_SETPGRP" if setpgrp() is
2820 available to set the current process group.
2821 "d_setpgrp2"
2823 From d_setpgrp2.U:
2824 This variable conditionally defines the HAS_SETPGRP2 symbol, which
2826 indicates to the C program that the setpgrp2() (as in DG/"UX")
2827 routine is available to set the current process group.
2828 "d_setprior"
2830 From d_setprior.U:
2831 This variable conditionally defines "HAS_SETPRIORITY" if
2833 setpriority() is available to set a process's priority.
2834 "d_setproctitle"
2836 From d_setproctitle.U:
2837 This variable conditionally defines the "HAS_SETPROCTITLE" symbol,
2839 which indicates to the C program that the setproctitle() routine is
2840 available.
2841 "d_setprotoent_r"
2843 From d_setprotoent_r.U:
2844 This variable conditionally defines the "HAS_SETPROTOENT_R" symbol,
2846 which indicates to the C program that the setprotoent_r() routine
2847 is available.
2848 "d_setpwent"
2850 From d_setpwent.U:
2851 This variable conditionally defines the "HAS_SETPWENT" symbol,
2853 which indicates to the C program that the setpwent() routine is
2854 available for initializing sequential access to the passwd
2855 database.
2856 "d_setpwent_r"
2858 From d_setpwent_r.U:
2859 This variable conditionally defines the "HAS_SETPWENT_R" symbol,
2861 which indicates to the C program that the setpwent_r() routine is
2862 available.
2863 "d_setregid"
2865 From d_setregid.U:
2866 This variable conditionally defines "HAS_SETREGID" if setregid() is
2868 available to change the real and effective gid of the current
2869 process.
2870 "d_setresgid"
2872 From d_setregid.U:
2873 This variable conditionally defines "HAS_SETRESGID" if setresgid()
2875 is available to change the real, effective and saved gid of the
2876 current process.
2877 "d_setresuid"
2879 From d_setreuid.U:
2880 This variable conditionally defines "HAS_SETREUID" if setresuid()
2882 is available to change the real, effective and saved uid of the
2883 current process.
2884 "d_setreuid"
2886 From d_setreuid.U:
2887 This variable conditionally defines "HAS_SETREUID" if setreuid() is
2889 available to change the real and effective uid of the current
2890 process.
2891 "d_setrgid"
2893 From d_setrgid.U:
2894 This variable conditionally defines the "HAS_SETRGID" symbol, which
2896 indicates to the C program that the setrgid() routine is available
2897 to change the real gid of the current program.
2898 "d_setruid"
2900 From d_setruid.U:
2901 This variable conditionally defines the "HAS_SETRUID" symbol, which
2903 indicates to the C program that the setruid() routine is available
2904 to change the real uid of the current program.
2905 "d_setsent"
2907 From d_setsent.U:
2908 This variable conditionally defines "HAS_SETSERVENT" if
2910 setservent() is available.
2911 "d_setservent_r"
2913 From d_setservent_r.U:
2914 This variable conditionally defines the "HAS_SETSERVENT_R" symbol,
2916 which indicates to the C program that the setservent_r() routine is
2917 available.
2918 "d_setsid"
2920 From d_setsid.U:
2921 This variable conditionally defines "HAS_SETSID" if setsid() is
2923 available to set the process group "ID".
2924 "d_setvbuf"
2926 From d_setvbuf.U:
2927 This variable conditionally defines the "HAS_SETVBUF" symbol, which
2929 indicates to the C program that the setvbuf() routine is available
2930 to change buffering on an open stdio stream.
2931 "d_sfio"
2933 From d_sfio.U:
2934 This variable conditionally defines the "USE_SFIO" symbol, and
2936 indicates whether sfio is available (and should be used).
2937 "d_shm"
2939 From d_shm.U:
2940 This variable conditionally defines the "HAS_SHM" symbol, which
2942 indicates that the entire shm*(2) library is present.
2943 "d_shmat"
2945 From d_shmat.U:
2946 This variable conditionally defines the "HAS_SHMAT" symbol, which
2948 indicates to the C program that the shmat() routine is available.
2949 "d_shmatprototype"
2951 From d_shmat.U:
2952 This variable conditionally defines the "HAS_SHMAT_PROTOTYPE"
2954 symbol, which indicates that sys/shm.h has a prototype for shmat.
2955 "d_shmctl"
2957 From d_shmctl.U:
2958 This variable conditionally defines the "HAS_SHMCTL" symbol, which
2960 indicates to the C program that the shmctl() routine is available.
2961 "d_shmdt"
2963 From d_shmdt.U:
2964 This variable conditionally defines the "HAS_SHMDT" symbol, which
2966 indicates to the C program that the shmdt() routine is available.
2967 "d_shmget"
2969 From d_shmget.U:
2970 This variable conditionally defines the "HAS_SHMGET" symbol, which
2972 indicates to the C program that the shmget() routine is available.
2973 "d_sigaction"
2975 From d_sigaction.U:
2976 This variable conditionally defines the "HAS_SIGACTION" symbol,
2978 which indicates that the Vr4 sigaction() routine is available.
2979 "d_signbit"
2981 From d_signbit.U:
2982 This variable conditionally defines the "HAS_SIGNBIT" symbol, which
2984 indicates to the C program that the signbit() routine is available
2985 and safe to use with perl's intern "NV" type.
2986 "d_sigprocmask"
2988 From d_sigprocmask.U:
2989 This variable conditionally defines "HAS_SIGPROCMASK" if
2991 sigprocmask() is available to examine or change the signal mask of
2992 the calling process.
2993 "d_sigsetjmp"
2995 From d_sigsetjmp.U:
2996 This variable conditionally defines the "HAS_SIGSETJMP" symbol,
2998 which indicates that the sigsetjmp() routine is available to call
2999 setjmp() and optionally save the process's signal mask.
3000 "d_sitearch"
3002 From sitearch.U:
3003 This variable conditionally defines "SITEARCH" to hold the pathname
3005 of architecture-dependent library files for $package. If $sitearch
3006 is the same as $archlib, then this is set to undef.
3007 "d_snprintf"
3009 From d_snprintf.U:
3010 This variable conditionally defines the "HAS_SNPRINTF" symbol,
3012 which indicates to the C program that the snprintf () library
3013 function is available.
3014 "d_sockatmark"
3016 From d_sockatmark.U:
3017 This variable conditionally defines the "HAS_SOCKATMARK" symbol,
3019 which indicates to the C program that the sockatmark() routine is
3020 available.
3021 "d_sockatmarkproto"
3023 From d_sockatmarkproto.U:
3024 This variable conditionally defines the "HAS_SOCKATMARK_PROTO"
3026 symbol, which indicates to the C program that the system provides a
3027 prototype for the sockatmark() function. Otherwise, it is up to
3028 the program to supply one.
3029 "d_socket"
3031 From d_socket.U:
3032 This variable conditionally defines "HAS_SOCKET", which indicates
3034 that the "BSD" socket interface is supported.
3035 "d_socklen_t"
3037 From d_socklen_t.U:
3038 This symbol will be defined if the C compiler supports socklen_t.
3040 "d_sockpair"
3042 From d_socket.U:
3043 This variable conditionally defines the "HAS_SOCKETPAIR" symbol,
3045 which indicates that the "BSD" socketpair() is supported.
3046 "d_socks5_init"
3048 From d_socks5_init.U:
3049 This variable conditionally defines the HAS_SOCKS5_INIT symbol,
3051 which indicates to the C program that the socks5_init() routine is
3052 available.
3053 "d_sprintf_returns_strlen"
3055 From d_sprintf_len.U:
3056 This variable defines whether sprintf returns the length of the
3058 string (as per the "ANSI" spec). Some C libraries retain
3059 compatibility with pre-"ANSI" C and return a pointer to the passed
3060 in buffer; for these this variable will be undef.
3061 "d_sqrtl"
3063 From d_sqrtl.U:
3064 This variable conditionally defines the "HAS_SQRTL" symbol, which
3066 indicates to the C program that the sqrtl() routine is available.
3067 "d_srand48_r"
3069 From d_srand48_r.U:
3070 This variable conditionally defines the HAS_SRAND48_R symbol, which
3072 indicates to the C program that the srand48_r() routine is
3073 available.
3074 "d_srandom_r"
3076 From d_srandom_r.U:
3077 This variable conditionally defines the "HAS_SRANDOM_R" symbol,
3079 which indicates to the C program that the srandom_r() routine is
3080 available.
3081 "d_sresgproto"
3083 From d_sresgproto.U:
3084 This variable conditionally defines the "HAS_SETRESGID_PROTO"
3086 symbol, which indicates to the C program that the system provides a
3087 prototype for the setresgid() function. Otherwise, it is up to the
3088 program to supply one.
3089 "d_sresuproto"
3091 From d_sresuproto.U:
3092 This variable conditionally defines the "HAS_SETRESUID_PROTO"
3094 symbol, which indicates to the C program that the system provides a
3095 prototype for the setresuid() function. Otherwise, it is up to the
3096 program to supply one.
3097 "d_statblks"
3099 From d_statblks.U:
3100 This variable conditionally defines "USE_STAT_BLOCKS" if this
3102 system has a stat structure declaring st_blksize and st_blocks.
3103 "d_statfs_f_flags"
3105 From d_statfs_f_flags.U:
3106 This variable conditionally defines the "HAS_STRUCT_STATFS_F_FLAGS"
3108 symbol, which indicates to struct statfs from has f_flags member.
3109 This kind of struct statfs is coming from sys/mount.h ("BSD"), not
3110 from sys/statfs.h ("SYSV").
3111 "d_statfs_s"
3113 From d_statfs_s.U:
3114 This variable conditionally defines the "HAS_STRUCT_STATFS" symbol,
3116 which indicates that the struct statfs is supported.
3117 "d_statvfs"
3119 From d_statvfs.U:
3120 This variable conditionally defines the "HAS_STATVFS" symbol, which
3122 indicates to the C program that the statvfs() routine is available.
3123 "d_stdio_cnt_lval"
3125 From d_stdstdio.U:
3126 This variable conditionally defines "STDIO_CNT_LVALUE" if the
3128 "FILE_cnt" macro can be used as an lvalue.
3129 "d_stdio_ptr_lval"
3131 From d_stdstdio.U:
3132 This variable conditionally defines "STDIO_PTR_LVALUE" if the
3134 "FILE_ptr" macro can be used as an lvalue.
3135 "d_stdio_ptr_lval_nochange_cnt"
3137 From d_stdstdio.U:
3138 This symbol is defined if using the "FILE_ptr" macro as an lvalue
3140 to increase the pointer by n leaves File_cnt(fp) unchanged.
3141 "d_stdio_ptr_lval_sets_cnt"
3143 From d_stdstdio.U:
3144 This symbol is defined if using the "FILE_ptr" macro as an lvalue
3146 to increase the pointer by n has the side effect of decreasing the
3147 value of File_cnt(fp) by n.
3148 "d_stdio_stream_array"
3150 From stdio_streams.U:
3151 This variable tells whether there is an array holding the stdio
3153 streams.
3154 "d_stdiobase"
3156 From d_stdstdio.U:
3157 This variable conditionally defines "USE_STDIO_BASE" if this system
3159 has a "FILE" structure declaring a usable _base field (or
3160 equivalent) in stdio.h.
3161 "d_stdstdio"
3163 From d_stdstdio.U:
3164 This variable conditionally defines "USE_STDIO_PTR" if this system
3166 has a "FILE" structure declaring usable _ptr and _cnt fields (or
3167 equivalent) in stdio.h.
3168 "d_strchr"
3170 From d_strchr.U:
3171 This variable conditionally defines "HAS_STRCHR" if strchr() and
3173 strrchr() are available for string searching.
3174 "d_strcoll"
3176 From d_strcoll.U:
3177 This variable conditionally defines "HAS_STRCOLL" if strcoll() is
3179 available to compare strings using collating information.
3180 "d_strctcpy"
3182 From d_strctcpy.U:
3183 This variable conditionally defines the "USE_STRUCT_COPY" symbol,
3185 which indicates to the C program that this C compiler knows how to
3186 copy structures.
3187 "d_strerrm"
3189 From d_strerror.U:
3190 This variable holds what Strerrr is defined as to translate an
3192 error code condition into an error message string. It could be
3193 "strerror" or a more "complex" macro emulating strrror with
3194 sys_errlist[], or the "unknown" string when both strerror and
3195 sys_errlist are missing.
3196 "d_strerror"
3198 From d_strerror.U:
3199 This variable conditionally defines "HAS_STRERROR" if strerror() is
3201 available to translate error numbers to strings.
3202 "d_strerror_r"
3204 From d_strerror_r.U:
3205 This variable conditionally defines the "HAS_STRERROR_R" symbol,
3207 which indicates to the C program that the strerror_r() routine is
3208 available.
3209 "d_strftime"
3211 From d_strftime.U:
3212 This variable conditionally defines the "HAS_STRFTIME" symbol,
3214 which indicates to the C program that the strftime() routine is
3215 available.
3216 "d_strlcat"
3218 From d_strlcat.U:
3219 This variable conditionally defines the "HAS_STRLCAT" symbol, which
3221 indicates to the C program that the strlcat () routine is
3222 available.
3223 "d_strlcpy"
3225 From d_strlcpy.U:
3226 This variable conditionally defines the "HAS_STRLCPY" symbol, which
3228 indicates to the C program that the strlcpy () routine is
3229 available.
3230 "d_strtod"
3232 From d_strtod.U:
3233 This variable conditionally defines the "HAS_STRTOD" symbol, which
3235 indicates to the C program that the strtod() routine is available
3236 to provide better numeric string conversion than atof().
3237 "d_strtol"
3239 From d_strtol.U:
3240 This variable conditionally defines the "HAS_STRTOL" symbol, which
3242 indicates to the C program that the strtol() routine is available
3243 to provide better numeric string conversion than atoi() and
3244 friends.
3245 "d_strtold"
3247 From d_strtold.U:
3248 This variable conditionally defines the "HAS_STRTOLD" symbol, which
3250 indicates to the C program that the strtold() routine is available.
3251 "d_strtoll"
3253 From d_strtoll.U:
3254 This variable conditionally defines the "HAS_STRTOLL" symbol, which
3256 indicates to the C program that the strtoll() routine is available.
3257 "d_strtoq"
3259 From d_strtoq.U:
3260 This variable conditionally defines the "HAS_STRTOQ" symbol, which
3262 indicates to the C program that the strtoq() routine is available.
3263 "d_strtoul"
3265 From d_strtoul.U:
3266 This variable conditionally defines the "HAS_STRTOUL" symbol, which
3268 indicates to the C program that the strtoul() routine is available
3269 to provide conversion of strings to unsigned long.
3270 "d_strtoull"
3272 From d_strtoull.U:
3273 This variable conditionally defines the "HAS_STRTOULL" symbol,
3275 which indicates to the C program that the strtoull() routine is
3276 available.
3277 "d_strtouq"
3279 From d_strtouq.U:
3280 This variable conditionally defines the "HAS_STRTOUQ" symbol, which
3282 indicates to the C program that the strtouq() routine is available.
3283 "d_strxfrm"
3285 From d_strxfrm.U:
3286 This variable conditionally defines "HAS_STRXFRM" if strxfrm() is
3288 available to transform strings.
3289 "d_suidsafe"
3291 From d_dosuid.U:
3292 This variable conditionally defines "SETUID_SCRIPTS_ARE_SECURE_NOW"
3294 if setuid scripts can be secure. This test looks in /dev/fd/.
3295 "d_symlink"
3297 From d_symlink.U:
3298 This variable conditionally defines the "HAS_SYMLINK" symbol, which
3300 indicates to the C program that the symlink() routine is available
3301 to create symbolic links.
3302 "d_syscall"
3304 From d_syscall.U:
3305 This variable conditionally defines "HAS_SYSCALL" if syscall() is
3307 available call arbitrary system calls.
3308 "d_syscallproto"
3310 From d_syscallproto.U:
3311 This variable conditionally defines the "HAS_SYSCALL_PROTO" symbol,
3313 which indicates to the C program that the system provides a
3314 prototype for the syscall() function. Otherwise, it is up to the
3315 program to supply one.
3316 "d_sysconf"
3318 From d_sysconf.U:
3319 This variable conditionally defines the "HAS_SYSCONF" symbol, which
3321 indicates to the C program that the sysconf() routine is available
3322 to determine system related limits and options.
3323 "d_sysernlst"
3325 From d_strerror.U:
3326 This variable conditionally defines "HAS_SYS_ERRNOLIST" if
3328 sys_errnolist[] is available to translate error numbers to the
3329 symbolic name.
3330 "d_syserrlst"
3332 From d_strerror.U:
3333 This variable conditionally defines "HAS_SYS_ERRLIST" if
3335 sys_errlist[] is available to translate error numbers to strings.
3336 "d_system"
3338 From d_system.U:
3339 This variable conditionally defines "HAS_SYSTEM" if system() is
3341 available to issue a shell command.
3342 "d_tcgetpgrp"
3344 From d_tcgtpgrp.U:
3345 This variable conditionally defines the "HAS_TCGETPGRP" symbol,
3347 which indicates to the C program that the tcgetpgrp() routine is
3348 available. to get foreground process group "ID".
3349 "d_tcsetpgrp"
3351 From d_tcstpgrp.U:
3352 This variable conditionally defines the "HAS_TCSETPGRP" symbol,
3354 which indicates to the C program that the tcsetpgrp() routine is
3355 available to set foreground process group "ID".
3356 "d_telldir"
3358 From d_readdir.U:
3359 This variable conditionally defines "HAS_TELLDIR" if telldir() is
3361 available.
3362 "d_telldirproto"
3364 From d_telldirproto.U:
3365 This variable conditionally defines the "HAS_TELLDIR_PROTO" symbol,
3367 which indicates to the C program that the system provides a
3368 prototype for the telldir() function. Otherwise, it is up to the
3369 program to supply one.
3370 "d_time"
3372 From d_time.U:
3373 This variable conditionally defines the "HAS_TIME" symbol, which
3375 indicates that the time() routine exists. The time() routine is
3376 normaly provided on "UNIX" systems.
3377 "d_timegm"
3379 From d_timegm.U:
3380 This variable conditionally defines the "HAS_TIMEGM" symbol, which
3382 indicates to the C program that the timegm () routine is available.
3383 "d_times"
3385 From d_times.U:
3386 This variable conditionally defines the "HAS_TIMES" symbol, which
3388 indicates that the times() routine exists. The times() routine is
3389 normaly provided on "UNIX" systems. You may have to include
3390 <sys/times.h>.
3391 "d_tm_tm_gmtoff"
3393 From i_time.U:
3394 This variable conditionally defines "HAS_TM_TM_GMTOFF", which
3396 indicates indicates to the C program that the struct tm has the
3397 tm_gmtoff field.
3398 "d_tm_tm_zone"
3400 From i_time.U:
3401 This variable conditionally defines "HAS_TM_TM_ZONE", which
3403 indicates indicates to the C program that the struct tm has the
3404 tm_zone field.
3405 "d_tmpnam_r"
3407 From d_tmpnam_r.U:
3408 This variable conditionally defines the "HAS_TMPNAM_R" symbol,
3410 which indicates to the C program that the tmpnam_r() routine is
3411 available.
3412 "d_truncate"
3414 From d_truncate.U:
3415 This variable conditionally defines "HAS_TRUNCATE" if truncate() is
3417 available to truncate files.
3418 "d_ttyname_r"
3420 From d_ttyname_r.U:
3421 This variable conditionally defines the "HAS_TTYNAME_R" symbol,
3423 which indicates to the C program that the ttyname_r() routine is
3424 available.
3425 "d_tzname"
3427 From d_tzname.U:
3428 This variable conditionally defines "HAS_TZNAME" if tzname[] is
3430 available to access timezone names.
3431 "d_u32align"
3433 From d_u32align.U:
3434 This variable tells whether you must access character data through
3436 U32-aligned pointers.
3437 "d_ualarm"
3439 From d_ualarm.U:
3440 This variable conditionally defines the "HAS_UALARM" symbol, which
3442 indicates to the C program that the ualarm() routine is available.
3443 "d_umask"
3445 From d_umask.U:
3446 This variable conditionally defines the "HAS_UMASK" symbol, which
3448 indicates to the C program that the umask() routine is available.
3449 to set and get the value of the file creation mask.
3450 "d_uname"
3452 From d_gethname.U:
3453 This variable conditionally defines the "HAS_UNAME" symbol, which
3455 indicates to the C program that the uname() routine may be used to
3456 derive the host name.
3457 "d_union_semun"
3459 From d_union_semun.U:
3460 This variable conditionally defines "HAS_UNION_SEMUN" if the union
3462 semun is defined by including <sys/sem.h>.
3463 "d_unordered"
3465 From d_unordered.U:
3466 This variable conditionally defines the "HAS_UNORDERED" symbol,
3468 which indicates to the C program that the unordered() routine is
3469 available.
3470 "d_unsetenv"
3472 From d_unsetenv.U:
3473 This variable conditionally defines the "HAS_UNSETENV" symbol,
3475 which indicates to the C program that the unsetenv () routine is
3476 available.
3477 "d_usleep"
3479 From d_usleep.U:
3480 This variable conditionally defines "HAS_USLEEP" if usleep() is
3482 available to do high granularity sleeps.
3483 "d_usleepproto"
3485 From d_usleepproto.U:
3486 This variable conditionally defines the "HAS_USLEEP_PROTO" symbol,
3488 which indicates to the C program that the system provides a
3489 prototype for the usleep() function. Otherwise, it is up to the
3490 program to supply one.
3491 "d_ustat"
3493 From d_ustat.U:
3494 This variable conditionally defines "HAS_USTAT" if ustat() is
3496 available to query file system statistics by dev_t.
3497 "d_vendorarch"
3499 From vendorarch.U:
3500 This variable conditionally defined "PERL_VENDORARCH".
3502 "d_vendorbin"
3504 From vendorbin.U:
3505 This variable conditionally defines "PERL_VENDORBIN".
3507 "d_vendorlib"
3509 From vendorlib.U:
3510 This variable conditionally defines "PERL_VENDORLIB".
3512 "d_vendorscript"
3514 From vendorscript.U:
3515 This variable conditionally defines "PERL_VENDORSCRIPT".
3517 "d_vfork"
3519 From d_vfork.U:
3520 This variable conditionally defines the "HAS_VFORK" symbol, which
3522 indicates the vfork() routine is available.
3523 "d_void_closedir"
3525 From d_closedir.U:
3526 This variable conditionally defines "VOID_CLOSEDIR" if closedir()
3528 does not return a value.
3529 "d_voidsig"
3531 From d_voidsig.U:
3532 This variable conditionally defines "VOIDSIG" if this system
3534 declares "void (*signal(...))()" in signal.h. The old way was to
3535 declare it as "int (*signal(...))()".
3536 "d_voidtty"
3538 From i_sysioctl.U:
3539 This variable conditionally defines "USE_IOCNOTTY" to indicate that
3541 the ioctl() call with "TIOCNOTTY" should be used to void tty
3542 association. Otherwise (on "USG" probably), it is enough to close
3543 the standard file decriptors and do a setpgrp().
3544 "d_volatile"
3546 From d_volatile.U:
3547 This variable conditionally defines the "HASVOLATILE" symbol, which
3549 indicates to the C program that this C compiler knows about the
3550 volatile declaration.
3551 "d_vprintf"
3553 From d_vprintf.U:
3554 This variable conditionally defines the "HAS_VPRINTF" symbol, which
3556 indicates to the C program that the vprintf() routine is available
3557 to printf with a pointer to an argument list.
3558 "d_vsnprintf"
3560 From d_snprintf.U:
3561 This variable conditionally defines the "HAS_VSNPRINTF" symbol,
3563 which indicates to the C program that the vsnprintf () library
3564 function is available.
3565 "d_wait4"
3567 From d_wait4.U:
3568 This variable conditionally defines the HAS_WAIT4 symbol, which
3570 indicates the wait4() routine is available.
3571 "d_waitpid"
3573 From d_waitpid.U:
3574 This variable conditionally defines "HAS_WAITPID" if waitpid() is
3576 available to wait for child process.
3577 "d_wcstombs"
3579 From d_wcstombs.U:
3580 This variable conditionally defines the "HAS_WCSTOMBS" symbol,
3582 which indicates to the C program that the wcstombs() routine is
3583 available to convert wide character strings to multibyte strings.
3584 "d_wctomb"
3586 From d_wctomb.U:
3587 This variable conditionally defines the "HAS_WCTOMB" symbol, which
3589 indicates to the C program that the wctomb() routine is available
3590 to convert a wide character to a multibyte.
3591 "d_writev"
3593 From d_writev.U:
3594 This variable conditionally defines the "HAS_WRITEV" symbol, which
3596 indicates to the C program that the writev() routine is available.
3597 "d_xenix"
3599 From Guess.U:
3600 This variable conditionally defines the symbol "XENIX", which
3602 alerts the C program that it runs under Xenix.
3603 "date"
3605 From Loc.U:
3606 This variable is used internally by Configure to determine the full
3608 pathname (if any) of the date program. After Configure runs, the
3609 value is reset to a plain "date" and is not useful.
3610 "db_hashtype"
3612 From i_db.U:
3613 This variable contains the type of the hash structure element in
3615 the <db.h> header file. In older versions of "DB", it was int,
3616 while in newer ones it is u_int32_t.
3617 "db_prefixtype"
3619 From i_db.U:
3620 This variable contains the type of the prefix structure element in
3622 the <db.h> header file. In older versions of "DB", it was int,
3623 while in newer ones it is size_t.
3624 "db_version_major"
3626 From i_db.U:
3627 This variable contains the major version number of Berkeley "DB"
3629 found in the <db.h> header file.
3630 "db_version_minor"
3632 From i_db.U:
3633 This variable contains the minor version number of Berkeley "DB"
3635 found in the <db.h> header file. For "DB" version 1 this is always
3636 0.
3637 "db_version_patch"
3639 From i_db.U:
3640 This variable contains the patch version number of Berkeley "DB"
3642 found in the <db.h> header file. For "DB" version 1 this is always
3643 0.
3644 "defvoidused"
3646 From voidflags.U:
3647 This variable contains the default value of the "VOIDUSED" symbol
3649 (15).
3650 "direntrytype"
3652 From i_dirent.U:
3653 This symbol is set to "struct direct" or "struct dirent" depending
3655 on whether dirent is available or not. You should use this pseudo
3656 type to portably declare your directory entries.
3657 "dlext"
3659 From dlext.U:
3660 This variable contains the extension that is to be used for the
3662 dynamically loaded modules that perl generaties.
3663 "dlsrc"
3665 From dlsrc.U:
3666 This variable contains the name of the dynamic loading file that
3668 will be used with the package.
3669 "doublesize"
3671 From doublesize.U:
3672 This variable contains the value of the "DOUBLESIZE" symbol, which
3674 indicates to the C program how many bytes there are in a double.
3675 "drand01"
3677 From randfunc.U:
3678 Indicates the macro to be used to generate normalized random
3680 numbers. Uses randfunc, often divided by (double) (((unsigned
3681 long) 1 << randbits)) in order to normalize the result. In C
3682 programs, the macro "Drand01" is mapped to drand01.
3683 "drand48_r_proto"
3685 From d_drand48_r.U:
3686 This variable encodes the prototype of drand48_r. It is zero if
3688 d_drand48_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
3689 of reentr.h if d_drand48_r is defined.
3690 "dtrace"
3692 From usedtrace.U:
3693 This variable holds the location of the dtrace executable.
3695 "dynamic_ext"
3697 From Extensions.U:
3698 This variable holds a list of "XS" extension files we want to link
3700 dynamically into the package. It is used by Makefile.
3701 e
3703 "eagain"
3704 From nblock_io.U:
3705 This variable bears the symbolic errno code set by read() when no
3707 data is present on the file and non-blocking I/O was enabled
3708 (otherwise, read() blocks naturally).
3709 "ebcdic"
3711 From ebcdic.U:
3712 This variable conditionally defines "EBCDIC" if this system uses
3714 "EBCDIC" encoding. Among other things, this means that the
3715 character ranges are not contiguous. See trnl.U
3716 "echo"
3718 From Loc.U:
3719 This variable is used internally by Configure to determine the full
3721 pathname (if any) of the echo program. After Configure runs, the
3722 value is reset to a plain "echo" and is not useful.
3723 "egrep"
3725 From Loc.U:
3726 This variable is used internally by Configure to determine the full
3728 pathname (if any) of the egrep program. After Configure runs, the
3729 value is reset to a plain "egrep" and is not useful.
3730 "emacs"
3732 From Loc.U:
3733 This variable is defined but not used by Configure. The value is
3735 the empty string and is not useful.
3736 "endgrent_r_proto"
3738 From d_endgrent_r.U:
3739 This variable encodes the prototype of endgrent_r. It is zero if
3741 d_endgrent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
3742 macros of reentr.h if d_endgrent_r is defined.
3743 "endhostent_r_proto"
3745 From d_endhostent_r.U:
3746 This variable encodes the prototype of endhostent_r. It is zero if
3748 d_endhostent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
3749 macros of reentr.h if d_endhostent_r is defined.
3750 "endnetent_r_proto"
3752 From d_endnetent_r.U:
3753 This variable encodes the prototype of endnetent_r. It is zero if
3755 d_endnetent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
3756 macros of reentr.h if d_endnetent_r is defined.
3757 "endprotoent_r_proto"
3759 From d_endprotoent_r.U:
3760 This variable encodes the prototype of endprotoent_r. It is zero
3762 if d_endprotoent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
3763 macros of reentr.h if d_endprotoent_r is defined.
3764 "endpwent_r_proto"
3766 From d_endpwent_r.U:
3767 This variable encodes the prototype of endpwent_r. It is zero if
3769 d_endpwent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
3770 macros of reentr.h if d_endpwent_r is defined.
3771 "endservent_r_proto"
3773 From d_endservent_r.U:
3774 This variable encodes the prototype of endservent_r. It is zero if
3776 d_endservent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
3777 macros of reentr.h if d_endservent_r is defined.
3778 "eunicefix"
3780 From Init.U:
3781 When running under Eunice this variable contains a command which
3783 will convert a shell script to the proper form of text file for it
3784 to be executable by the shell. On other systems it is a no-op.
3785 "exe_ext"
3787 From Unix.U:
3788 This is an old synonym for _exe.
3790 "expr"
3792 From Loc.U:
3793 This variable is used internally by Configure to determine the full
3795 pathname (if any) of the expr program. After Configure runs, the
3796 value is reset to a plain "expr" and is not useful.
3797 "extensions"
3799 From Extensions.U:
3800 This variable holds a list of all extension files (both "XS" and
3802 non-xs linked into the package. It is propagated to Config.pm and
3803 is typically used to test whether a particular extesion is
3804 available.
3805 "extern_C"
3807 From Csym.U:
3808 "ANSI" C requires "extern" where C++ requires 'extern "C"'. This
3810 variable can be used in Configure to do the right thing.
3811 "extras"
3813 From Extras.U:
3814 This variable holds a list of extra modules to install.
3816 f
3818 "fflushall"
3819 From fflushall.U:
3820 This symbol, if defined, tells that to flush all pending stdio
3822 output one must loop through all the stdio file handles stored in
3823 an array and fflush them. Note that if fflushNULL is defined,
3824 fflushall will not even be probed for and will be left undefined.
3825 "fflushNULL"
3827 From fflushall.U:
3828 This symbol, if defined, tells that fflush("NULL") does flush all
3830 pending stdio output.
3831 "find"
3833 From Loc.U:
3834 This variable is defined but not used by Configure. The value is
3836 the empty string and is not useful.
3837 "firstmakefile"
3839 From Unix.U:
3840 This variable defines the first file searched by make. On unix, it
3842 is makefile (then Makefile). On case-insensitive systems, it might
3843 be something else. This is only used to deal with convoluted make
3844 depend tricks.
3845 "flex"
3847 From Loc.U:
3848 This variable is defined but not used by Configure. The value is
3850 the empty string and is not useful.
3851 "fpossize"
3853 From fpossize.U:
3854 This variable contains the size of a fpostype in bytes.
3856 "fpostype"
3858 From fpostype.U:
3859 This variable defines Fpos_t to be something like fpos_t, long,
3861 uint, or whatever type is used to declare file positions in libc.
3862 "freetype"
3864 From mallocsrc.U:
3865 This variable contains the return type of free(). It is usually
3867 void, but occasionally int.
3868 "from"
3870 From Cross.U:
3871 This variable contains the command used by Configure to copy files
3873 from the target host. Useful and available only during Perl build.
3874 The string ":" if not cross-compiling.
3875 "full_ar"
3877 From Loc_ar.U:
3878 This variable contains the full pathname to "ar", whether or not
3880 the user has specified "portability". This is only used in the
3881 Makefile.SH.
3882 "full_csh"
3884 From d_csh.U:
3885 This variable contains the full pathname to "csh", whether or not
3887 the user has specified "portability". This is only used in the
3888 compiled C program, and we assume that all systems which can share
3889 this executable will have the same full pathname to csh.
3890 "full_sed"
3892 From Loc_sed.U:
3893 This variable contains the full pathname to "sed", whether or not
3895 the user has specified "portability". This is only used in the
3896 compiled C program, and we assume that all systems which can share
3897 this executable will have the same full pathname to sed.
3898 g
3900 "gccansipedantic"
3901 From gccvers.U:
3902 If "GNU" cc (gcc) is used, this variable will enable (if set) the
3904 -ansi and -pedantic ccflags for building core files (through cflags
3905 script). (See Porting/pumpkin.pod for full description).
3906 "gccosandvers"
3908 From gccvers.U:
3909 If "GNU" cc (gcc) is used, this variable holds the operating system
3911 and version used to compile gcc. It is set to '' if not gcc, or if
3912 nothing useful can be parsed as the os version.
3913 "gccversion"
3915 From gccvers.U:
3916 If "GNU" cc (gcc) is used, this variable holds 1 or 2 to indicate
3918 whether the compiler is version 1 or 2. This is used in setting
3919 some of the default cflags. It is set to '' if not gcc.
3920 "getgrent_r_proto"
3922 From d_getgrent_r.U:
3923 This variable encodes the prototype of getgrent_r. It is zero if
3925 d_getgrent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
3926 macros of reentr.h if d_getgrent_r is defined.
3927 "getgrgid_r_proto"
3929 From d_getgrgid_r.U:
3930 This variable encodes the prototype of getgrgid_r. It is zero if
3932 d_getgrgid_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
3933 macros of reentr.h if d_getgrgid_r is defined.
3934 "getgrnam_r_proto"
3936 From d_getgrnam_r.U:
3937 This variable encodes the prototype of getgrnam_r. It is zero if
3939 d_getgrnam_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
3940 macros of reentr.h if d_getgrnam_r is defined.
3941 "gethostbyaddr_r_proto"
3943 From d_gethostbyaddr_r.U:
3944 This variable encodes the prototype of gethostbyaddr_r. It is zero
3946 if d_gethostbyaddr_r is undef, and one of the
3947 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_gethostbyaddr_r is
3948 defined.
3949 "gethostbyname_r_proto"
3951 From d_gethostbyname_r.U:
3952 This variable encodes the prototype of gethostbyname_r. It is zero
3954 if d_gethostbyname_r is undef, and one of the
3955 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_gethostbyname_r is
3956 defined.
3957 "gethostent_r_proto"
3959 From d_gethostent_r.U:
3960 This variable encodes the prototype of gethostent_r. It is zero if
3962 d_gethostent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
3963 macros of reentr.h if d_gethostent_r is defined.
3964 "getlogin_r_proto"
3966 From d_getlogin_r.U:
3967 This variable encodes the prototype of getlogin_r. It is zero if
3969 d_getlogin_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
3970 macros of reentr.h if d_getlogin_r is defined.
3971 "getnetbyaddr_r_proto"
3973 From d_getnetbyaddr_r.U:
3974 This variable encodes the prototype of getnetbyaddr_r. It is zero
3976 if d_getnetbyaddr_r is undef, and one of the
3977 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getnetbyaddr_r is
3978 defined.
3979 "getnetbyname_r_proto"
3981 From d_getnetbyname_r.U:
3982 This variable encodes the prototype of getnetbyname_r. It is zero
3984 if d_getnetbyname_r is undef, and one of the
3985 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getnetbyname_r is
3986 defined.
3987 "getnetent_r_proto"
3989 From d_getnetent_r.U:
3990 This variable encodes the prototype of getnetent_r. It is zero if
3992 d_getnetent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
3993 macros of reentr.h if d_getnetent_r is defined.
3994 "getprotobyname_r_proto"
3996 From d_getprotobyname_r.U:
3997 This variable encodes the prototype of getprotobyname_r. It is
3999 zero if d_getprotobyname_r is undef, and one of the
4000 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getprotobyname_r is
4001 defined.
4002 "getprotobynumber_r_proto"
4004 From d_getprotobynumber_r.U:
4005 This variable encodes the prototype of getprotobynumber_r. It is
4007 zero if d_getprotobynumber_r is undef, and one of the
4008 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getprotobynumber_r
4009 is defined.
4010 "getprotoent_r_proto"
4012 From d_getprotoent_r.U:
4013 This variable encodes the prototype of getprotoent_r. It is zero
4015 if d_getprotoent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4016 macros of reentr.h if d_getprotoent_r is defined.
4017 "getpwent_r_proto"
4019 From d_getpwent_r.U:
4020 This variable encodes the prototype of getpwent_r. It is zero if
4022 d_getpwent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4023 macros of reentr.h if d_getpwent_r is defined.
4024 "getpwnam_r_proto"
4026 From d_getpwnam_r.U:
4027 This variable encodes the prototype of getpwnam_r. It is zero if
4029 d_getpwnam_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4030 macros of reentr.h if d_getpwnam_r is defined.
4031 "getpwuid_r_proto"
4033 From d_getpwuid_r.U:
4034 This variable encodes the prototype of getpwuid_r. It is zero if
4036 d_getpwuid_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4037 macros of reentr.h if d_getpwuid_r is defined.
4038 "getservbyname_r_proto"
4040 From d_getservbyname_r.U:
4041 This variable encodes the prototype of getservbyname_r. It is zero
4043 if d_getservbyname_r is undef, and one of the
4044 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getservbyname_r is
4045 defined.
4046 "getservbyport_r_proto"
4048 From d_getservbyport_r.U:
4049 This variable encodes the prototype of getservbyport_r. It is zero
4051 if d_getservbyport_r is undef, and one of the
4052 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getservbyport_r is
4053 defined.
4054 "getservent_r_proto"
4056 From d_getservent_r.U:
4057 This variable encodes the prototype of getservent_r. It is zero if
4059 d_getservent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4060 macros of reentr.h if d_getservent_r is defined.
4061 "getspnam_r_proto"
4063 From d_getspnam_r.U:
4064 This variable encodes the prototype of getspnam_r. It is zero if
4066 d_getspnam_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4067 macros of reentr.h if d_getspnam_r is defined.
4068 "gidformat"
4070 From gidf.U:
4071 This variable contains the format string used for printing a Gid_t.
4073 "gidsign"
4075 From gidsign.U:
4076 This variable contains the signedness of a gidtype. 1 for
4078 unsigned, -1 for signed.
4079 "gidsize"
4081 From gidsize.U:
4082 This variable contains the size of a gidtype in bytes.
4084 "gidtype"
4086 From gidtype.U:
4087 This variable defines Gid_t to be something like gid_t, int,
4089 ushort, or whatever type is used to declare the return type of
4090 getgid(). Typically, it is the type of group ids in the kernel.
4091 "glibpth"
4093 From libpth.U:
4094 This variable holds the general path (space-separated) used to find
4096 libraries. It may contain directories that do not exist on this
4097 platform, libpth is the cleaned-up version.
4098 "gmake"
4100 From Loc.U:
4101 This variable is used internally by Configure to determine the full
4103 pathname (if any) of the gmake program. After Configure runs, the
4104 value is reset to a plain "gmake" and is not useful.
4105 "gmtime_r_proto"
4107 From d_gmtime_r.U:
4108 This variable encodes the prototype of gmtime_r. It is zero if
4110 d_gmtime_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
4111 of reentr.h if d_gmtime_r is defined.
4112 "gnulibc_version"
4114 From d_gnulibc.U:
4115 This variable contains the version number of the "GNU" C library.
4117 It is usually something like 2.2.5. It is a plain '' if this is
4118 not the "GNU" C library, or if the version is unknown.
4119 "grep"
4121 From Loc.U:
4122 This variable is used internally by Configure to determine the full
4124 pathname (if any) of the grep program. After Configure runs, the
4125 value is reset to a plain "grep" and is not useful.
4126 "groupcat"
4128 From nis.U:
4129 This variable contains a command that produces the text of the
4131 /etc/group file. This is normally "cat /etc/group", but can be
4132 "ypcat group" when "NIS" is used. On some systems, such as os390,
4133 there may be no equivalent command, in which case this variable is
4134 unset.
4135 "groupstype"
4137 From groupstype.U:
4138 This variable defines Groups_t to be something like gid_t, int,
4140 ushort, or whatever type is used for the second argument to
4141 getgroups() and setgroups(). Usually, this is the same as gidtype
4142 (gid_t), but sometimes it isn't.
4143 "gzip"
4145 From Loc.U:
4146 This variable is used internally by Configure to determine the full
4148 pathname (if any) of the gzip program. After Configure runs, the
4149 value is reset to a plain "gzip" and is not useful.
4150 h
4152 "h_fcntl"
4153 From h_fcntl.U:
4154 This is variable gets set in various places to tell i_fcntl that
4156 <fcntl.h> should be included.
4157 "h_sysfile"
4159 From h_sysfile.U:
4160 This is variable gets set in various places to tell i_sys_file that
4162 <sys/file.h> should be included.
4163 "hint"
4165 From Oldconfig.U:
4166 Gives the type of hints used for previous answers. May be one of
4168 "default", "recommended" or "previous".
4169 "hostcat"
4171 From nis.U:
4172 This variable contains a command that produces the text of the
4174 /etc/hosts file. This is normally "cat /etc/hosts", but can be
4175 "ypcat hosts" when "NIS" is used. On some systems, such as os390,
4176 there may be no equivalent command, in which case this variable is
4177 unset.
4178 "html1dir"
4180 From html1dir.U:
4181 This variable contains the name of the directory in which html
4183 source pages are to be put. This directory is for pages that
4184 describe whole programs, not libraries or modules. It is intended
4185 to correspond roughly to section 1 of the Unix manuals.
4186 "html1direxp"
4188 From html1dir.U:
4189 This variable is the same as the html1dir variable, but is filename
4191 expanded at configuration time, for convenient use in makefiles.
4192 "html3dir"
4194 From html3dir.U:
4195 This variable contains the name of the directory in which html
4197 source pages are to be put. This directory is for pages that
4198 describe libraries or modules. It is intended to correspond
4199 roughly to section 3 of the Unix manuals.
4200 "html3direxp"
4202 From html3dir.U:
4203 This variable is the same as the html3dir variable, but is filename
4205 expanded at configuration time, for convenient use in makefiles.
4206 i
4208 "i16size"
4209 From perlxv.U:
4210 This variable is the size of an I16 in bytes.
4212 "i16type"
4214 From perlxv.U:
4215 This variable contains the C type used for Perl's I16.
4217 "i32size"
4219 From perlxv.U:
4220 This variable is the size of an I32 in bytes.
4222 "i32type"
4224 From perlxv.U:
4225 This variable contains the C type used for Perl's I32.
4227 "i64size"
4229 From perlxv.U:
4230 This variable is the size of an I64 in bytes.
4232 "i64type"
4234 From perlxv.U:
4235 This variable contains the C type used for Perl's I64.
4237 "i8size"
4239 From perlxv.U:
4240 This variable is the size of an I8 in bytes.
4242 "i8type"
4244 From perlxv.U:
4245 This variable contains the C type used for Perl's I8.
4247 "i_arpainet"
4249 From i_arpainet.U:
4250 This variable conditionally defines the "I_ARPA_INET" symbol, and
4252 indicates whether a C program should include <arpa/inet.h>.
4253 "i_assert"
4255 From i_assert.U:
4256 This variable conditionally defines the "I_ASSERT" symbol, which
4258 indicates to the C program that <assert.h> exists and could be
4259 included.
4260 "i_bsdioctl"
4262 From i_sysioctl.U:
4263 This variable conditionally defines the "I_SYS_BSDIOCTL" symbol,
4265 which indicates to the C program that <sys/bsdioctl.h> exists and
4266 should be included.
4267 "i_crypt"
4269 From i_crypt.U:
4270 This variable conditionally defines the "I_CRYPT" symbol, and
4272 indicates whether a C program should include <crypt.h>.
4273 "i_db"
4275 From i_db.U:
4276 This variable conditionally defines the "I_DB" symbol, and
4278 indicates whether a C program may include Berkeley's "DB" include
4279 file <db.h>.
4280 "i_dbm"
4282 From i_dbm.U:
4283 This variable conditionally defines the "I_DBM" symbol, which
4285 indicates to the C program that <dbm.h> exists and should be
4286 included.
4287 "i_dirent"
4289 From i_dirent.U:
4290 This variable conditionally defines "I_DIRENT", which indicates to
4292 the C program that it should include <dirent.h>.
4293 "i_dld"
4295 From i_dld.U:
4296 This variable conditionally defines the "I_DLD" symbol, which
4298 indicates to the C program that <dld.h> ("GNU" dynamic loading)
4299 exists and should be included.
4300 "i_dlfcn"
4302 From i_dlfcn.U:
4303 This variable conditionally defines the "I_DLFCN" symbol, which
4305 indicates to the C program that <dlfcn.h> exists and should be
4306 included.
4307 "i_fcntl"
4309 From i_fcntl.U:
4310 This variable controls the value of "I_FCNTL" (which tells the C
4312 program to include <fcntl.h>).
4313 "i_float"
4315 From i_float.U:
4316 This variable conditionally defines the "I_FLOAT" symbol, and
4318 indicates whether a C program may include <float.h> to get symbols
4319 like "DBL_MAX" or "DBL_MIN", i.e. machine dependent floating point
4320 values.
4321 "i_fp"
4323 From i_fp.U:
4324 This variable conditionally defines the "I_FP" symbol, and
4326 indicates whether a C program should include <fp.h>.
4327 "i_fp_class"
4329 From i_fp_class.U:
4330 This variable conditionally defines the "I_FP_CLASS" symbol, and
4332 indicates whether a C program should include <fp_class.h>.
4333 "i_gdbm"
4335 From i_gdbm.U:
4336 This variable conditionally defines the "I_GDBM" symbol, which
4338 indicates to the C program that <gdbm.h> exists and should be
4339 included.
4340 "i_gdbm_ndbm"
4342 From i_ndbm.U:
4343 This variable conditionally defines the "I_GDBM_NDBM" symbol, which
4345 indicates to the C program that <gdbm-ndbm.h> exists and should be
4346 included. This is the location of the ndbm.h compatibility file in
4347 Debian 4.0.
4348 "i_gdbmndbm"
4350 From i_ndbm.U:
4351 This variable conditionally defines the "I_GDBMNDBM" symbol, which
4353 indicates to the C program that <gdbm/ndbm.h> exists and should be
4354 included. This was the location of the ndbm.h compatibility file
4355 in RedHat 7.1.
4356 "i_grp"
4358 From i_grp.U:
4359 This variable conditionally defines the "I_GRP" symbol, and
4361 indicates whether a C program should include <grp.h>.
4362 "i_ieeefp"
4364 From i_ieeefp.U:
4365 This variable conditionally defines the "I_IEEEFP" symbol, and
4367 indicates whether a C program should include <ieeefp.h>.
4368 "i_inttypes"
4370 From i_inttypes.U:
4371 This variable conditionally defines the "I_INTTYPES" symbol, and
4373 indicates whether a C program should include <inttypes.h>.
4374 "i_langinfo"
4376 From i_langinfo.U:
4377 This variable conditionally defines the "I_LANGINFO" symbol, and
4379 indicates whether a C program should include <langinfo.h>.
4380 "i_libutil"
4382 From i_libutil.U:
4383 This variable conditionally defines the "I_LIBUTIL" symbol, and
4385 indicates whether a C program should include <libutil.h>.
4386 "i_limits"
4388 From i_limits.U:
4389 This variable conditionally defines the "I_LIMITS" symbol, and
4391 indicates whether a C program may include <limits.h> to get symbols
4392 like "WORD_BIT" and friends.
4393 "i_locale"
4395 From i_locale.U:
4396 This variable conditionally defines the "I_LOCALE" symbol, and
4398 indicates whether a C program should include <locale.h>.
4399 "i_machcthr"
4401 From i_machcthr.U:
4402 This variable conditionally defines the "I_MACH_CTHREADS" symbol,
4404 and indicates whether a C program should include <mach/cthreads.h>.
4405 "i_malloc"
4407 From i_malloc.U:
4408 This variable conditionally defines the "I_MALLOC" symbol, and
4410 indicates whether a C program should include <malloc.h>.
4411 "i_mallocmalloc"
4413 From i_mallocmalloc.U:
4414 This variable conditionally defines the "I_MALLOCMALLOC" symbol,
4416 and indicates whether a C program should include <malloc/malloc.h>.
4417 "i_math"
4419 From i_math.U:
4420 This variable conditionally defines the "I_MATH" symbol, and
4422 indicates whether a C program may include <math.h>.
4423 "i_memory"
4425 From i_memory.U:
4426 This variable conditionally defines the "I_MEMORY" symbol, and
4428 indicates whether a C program should include <memory.h>.
4429 "i_mntent"
4431 From i_mntent.U:
4432 This variable conditionally defines the "I_MNTENT" symbol, and
4434 indicates whether a C program should include <mntent.h>.
4435 "i_ndbm"
4437 From i_ndbm.U:
4438 This variable conditionally defines the "I_NDBM" symbol, which
4440 indicates to the C program that <ndbm.h> exists and should be
4441 included.
4442 "i_netdb"
4444 From i_netdb.U:
4445 This variable conditionally defines the "I_NETDB" symbol, and
4447 indicates whether a C program should include <netdb.h>.
4448 "i_neterrno"
4450 From i_neterrno.U:
4451 This variable conditionally defines the "I_NET_ERRNO" symbol, which
4453 indicates to the C program that <net/errno.h> exists and should be
4454 included.
4455 "i_netinettcp"
4457 From i_netinettcp.U:
4458 This variable conditionally defines the "I_NETINET_TCP" symbol, and
4460 indicates whether a C program should include <netinet/tcp.h>.
4461 "i_niin"
4463 From i_niin.U:
4464 This variable conditionally defines "I_NETINET_IN", which indicates
4466 to the C program that it should include <netinet/in.h>. Otherwise,
4467 you may try <sys/in.h>.
4468 "i_poll"
4470 From i_poll.U:
4471 This variable conditionally defines the "I_POLL" symbol, and
4473 indicates whether a C program should include <poll.h>.
4474 "i_prot"
4476 From i_prot.U:
4477 This variable conditionally defines the "I_PROT" symbol, and
4479 indicates whether a C program should include <prot.h>.
4480 "i_pthread"
4482 From i_pthread.U:
4483 This variable conditionally defines the "I_PTHREAD" symbol, and
4485 indicates whether a C program should include <pthread.h>.
4486 "i_pwd"
4488 From i_pwd.U:
4489 This variable conditionally defines "I_PWD", which indicates to the
4491 C program that it should include <pwd.h>.
4492 "i_rpcsvcdbm"
4494 From i_dbm.U:
4495 This variable conditionally defines the "I_RPCSVC_DBM" symbol,
4497 which indicates to the C program that <rpcsvc/dbm.h> exists and
4498 should be included. Some System V systems might need this instead
4499 of <dbm.h>.
4500 "i_sfio"
4502 From i_sfio.U:
4503 This variable conditionally defines the "I_SFIO" symbol, and
4505 indicates whether a C program should include <sfio.h>.
4506 "i_sgtty"
4508 From i_termio.U:
4509 This variable conditionally defines the "I_SGTTY" symbol, which
4511 indicates to the C program that it should include <sgtty.h> rather
4512 than <termio.h>.
4513 "i_shadow"
4515 From i_shadow.U:
4516 This variable conditionally defines the "I_SHADOW" symbol, and
4518 indicates whether a C program should include <shadow.h>.
4519 "i_socks"
4521 From i_socks.U:
4522 This variable conditionally defines the "I_SOCKS" symbol, and
4524 indicates whether a C program should include <socks.h>.
4525 "i_stdarg"
4527 From i_varhdr.U:
4528 This variable conditionally defines the "I_STDARG" symbol, which
4530 indicates to the C program that <stdarg.h> exists and should be
4531 included.
4532 "i_stddef"
4534 From i_stddef.U:
4535 This variable conditionally defines the "I_STDDEF" symbol, which
4537 indicates to the C program that <stddef.h> exists and should be
4538 included.
4539 "i_stdlib"
4541 From i_stdlib.U:
4542 This variable conditionally defines the "I_STDLIB" symbol, which
4544 indicates to the C program that <stdlib.h> exists and should be
4545 included.
4546 "i_string"
4548 From i_string.U:
4549 This variable conditionally defines the "I_STRING" symbol, which
4551 indicates that <string.h> should be included rather than
4552 <strings.h>.
4553 "i_sunmath"
4555 From i_sunmath.U:
4556 This variable conditionally defines the "I_SUNMATH" symbol, and
4558 indicates whether a C program should include <sunmath.h>.
4559 "i_sysaccess"
4561 From i_sysaccess.U:
4562 This variable conditionally defines the "I_SYS_ACCESS" symbol, and
4564 indicates whether a C program should include <sys/access.h>.
4565 "i_sysdir"
4567 From i_sysdir.U:
4568 This variable conditionally defines the "I_SYS_DIR" symbol, and
4570 indicates whether a C program should include <sys/dir.h>.
4571 "i_sysfile"
4573 From i_sysfile.U:
4574 This variable conditionally defines the "I_SYS_FILE" symbol, and
4576 indicates whether a C program should include <sys/file.h> to get
4577 "R_OK" and friends.
4578 "i_sysfilio"
4580 From i_sysioctl.U:
4581 This variable conditionally defines the "I_SYS_FILIO" symbol, which
4583 indicates to the C program that <sys/filio.h> exists and should be
4584 included in preference to <sys/ioctl.h>.
4585 "i_sysin"
4587 From i_niin.U:
4588 This variable conditionally defines "I_SYS_IN", which indicates to
4590 the C program that it should include <sys/in.h> instead of
4591 <netinet/in.h>.
4592 "i_sysioctl"
4594 From i_sysioctl.U:
4595 This variable conditionally defines the "I_SYS_IOCTL" symbol, which
4597 indicates to the C program that <sys/ioctl.h> exists and should be
4598 included.
4599 "i_syslog"
4601 From i_syslog.U:
4602 This variable conditionally defines the "I_SYSLOG" symbol, and
4604 indicates whether a C program should include <syslog.h>.
4605 "i_sysmman"
4607 From i_sysmman.U:
4608 This variable conditionally defines the "I_SYS_MMAN" symbol, and
4610 indicates whether a C program should include <sys/mman.h>.
4611 "i_sysmode"
4613 From i_sysmode.U:
4614 This variable conditionally defines the "I_SYSMODE" symbol, and
4616 indicates whether a C program should include <sys/mode.h>.
4617 "i_sysmount"
4619 From i_sysmount.U:
4620 This variable conditionally defines the "I_SYSMOUNT" symbol, and
4622 indicates whether a C program should include <sys/mount.h>.
4623 "i_sysndir"
4625 From i_sysndir.U:
4626 This variable conditionally defines the "I_SYS_NDIR" symbol, and
4628 indicates whether a C program should include <sys/ndir.h>.
4629 "i_sysparam"
4631 From i_sysparam.U:
4632 This variable conditionally defines the "I_SYS_PARAM" symbol, and
4634 indicates whether a C program should include <sys/param.h>.
4635 "i_syspoll"
4637 From i_syspoll.U:
4638 This variable conditionally defines the "I_SYS_POLL" symbol, which
4640 indicates to the C program that it should include <sys/poll.h>.
4641 "i_sysresrc"
4643 From i_sysresrc.U:
4644 This variable conditionally defines the "I_SYS_RESOURCE" symbol,
4646 and indicates whether a C program should include <sys/resource.h>.
4647 "i_syssecrt"
4649 From i_syssecrt.U:
4650 This variable conditionally defines the "I_SYS_SECURITY" symbol,
4652 and indicates whether a C program should include <sys/security.h>.
4653 "i_sysselct"
4655 From i_sysselct.U:
4656 This variable conditionally defines "I_SYS_SELECT", which indicates
4658 to the C program that it should include <sys/select.h> in order to
4659 get the definition of struct timeval.
4660 "i_syssockio"
4662 From i_sysioctl.U:
4663 This variable conditionally defines "I_SYS_SOCKIO" to indicate to
4665 the C program that socket ioctl codes may be found in
4666 <sys/sockio.h> instead of <sys/ioctl.h>.
4667 "i_sysstat"
4669 From i_sysstat.U:
4670 This variable conditionally defines the "I_SYS_STAT" symbol, and
4672 indicates whether a C program should include <sys/stat.h>.
4673 "i_sysstatfs"
4675 From i_sysstatfs.U:
4676 This variable conditionally defines the "I_SYSSTATFS" symbol, and
4678 indicates whether a C program should include <sys/statfs.h>.
4679 "i_sysstatvfs"
4681 From i_sysstatvfs.U:
4682 This variable conditionally defines the "I_SYSSTATVFS" symbol, and
4684 indicates whether a C program should include <sys/statvfs.h>.
4685 "i_systime"
4687 From i_time.U:
4688 This variable conditionally defines "I_SYS_TIME", which indicates
4690 to the C program that it should include <sys/time.h>.
4691 "i_systimek"
4693 From i_time.U:
4694 This variable conditionally defines "I_SYS_TIME_KERNEL", which
4696 indicates to the C program that it should include <sys/time.h> with
4697 "KERNEL" defined.
4698 "i_systimes"
4700 From i_systimes.U:
4701 This variable conditionally defines the "I_SYS_TIMES" symbol, and
4703 indicates whether a C program should include <sys/times.h>.
4704 "i_systypes"
4706 From i_systypes.U:
4707 This variable conditionally defines the "I_SYS_TYPES" symbol, and
4709 indicates whether a C program should include <sys/types.h>.
4710 "i_sysuio"
4712 From i_sysuio.U:
4713 This variable conditionally defines the "I_SYSUIO" symbol, and
4715 indicates whether a C program should include <sys/uio.h>.
4716 "i_sysun"
4718 From i_sysun.U:
4719 This variable conditionally defines "I_SYS_UN", which indicates to
4721 the C program that it should include <sys/un.h> to get "UNIX"
4722 domain socket definitions.
4723 "i_sysutsname"
4725 From i_sysutsname.U:
4726 This variable conditionally defines the "I_SYSUTSNAME" symbol, and
4728 indicates whether a C program should include <sys/utsname.h>.
4729 "i_sysvfs"
4731 From i_sysvfs.U:
4732 This variable conditionally defines the "I_SYSVFS" symbol, and
4734 indicates whether a C program should include <sys/vfs.h>.
4735 "i_syswait"
4737 From i_syswait.U:
4738 This variable conditionally defines "I_SYS_WAIT", which indicates
4740 to the C program that it should include <sys/wait.h>.
4741 "i_termio"
4743 From i_termio.U:
4744 This variable conditionally defines the "I_TERMIO" symbol, which
4746 indicates to the C program that it should include <termio.h> rather
4747 than <sgtty.h>.
4748 "i_termios"
4750 From i_termio.U:
4751 This variable conditionally defines the "I_TERMIOS" symbol, which
4753 indicates to the C program that the "POSIX" <termios.h> file is to
4754 be included.
4755 "i_time"
4757 From i_time.U:
4758 This variable conditionally defines "I_TIME", which indicates to
4760 the C program that it should include <time.h>.
4761 "i_unistd"
4763 From i_unistd.U:
4764 This variable conditionally defines the "I_UNISTD" symbol, and
4766 indicates whether a C program should include <unistd.h>.
4767 "i_ustat"
4769 From i_ustat.U:
4770 This variable conditionally defines the "I_USTAT" symbol, and
4772 indicates whether a C program should include <ustat.h>.
4773 "i_utime"
4775 From i_utime.U:
4776 This variable conditionally defines the "I_UTIME" symbol, and
4778 indicates whether a C program should include <utime.h>.
4779 "i_values"
4781 From i_values.U:
4782 This variable conditionally defines the "I_VALUES" symbol, and
4784 indicates whether a C program may include <values.h> to get symbols
4785 like "MAXLONG" and friends.
4786 "i_varargs"
4788 From i_varhdr.U:
4789 This variable conditionally defines "I_VARARGS", which indicates to
4791 the C program that it should include <varargs.h>.
4792 "i_varhdr"
4794 From i_varhdr.U:
4795 Contains the name of the header to be included to get va_dcl
4797 definition. Typically one of varargs.h or stdarg.h.
4798 "i_vfork"
4800 From i_vfork.U:
4801 This variable conditionally defines the "I_VFORK" symbol, and
4803 indicates whether a C program should include vfork.h.
4804 "ignore_versioned_solibs"
4806 From libs.U:
4807 This variable should be non-empty if non-versioned shared libraries
4809 (libfoo.so.x.y) are to be ignored (because they cannot be linked
4810 against).
4811 "inc_version_list"
4813 From inc_version_list.U:
4814 This variable specifies the list of subdirectories in over which
4816 perl.c:incpush() and lib/lib.pm will automatically search when
4817 adding directories to @"INC". The elements in the list are
4818 separated by spaces. This is only useful if you have a perl
4819 library directory tree structured like the default one. See
4820 "INSTALL" for how this works. The versioned site_perl directory
4821 was introduced in 5.005, so that is the lowest possible value.
4822 This list includes architecture-dependent directories back to
4824 version $api_versionstring (e.g. 5.5.640) and architecture-
4825 independent directories all the way back to 5.005.
4826 "inc_version_list_init"
4828 From inc_version_list.U:
4829 This variable holds the same list as inc_version_list, but each
4831 item is enclosed in double quotes and separated by commas, suitable
4832 for use in the "PERL_INC_VERSION_LIST" initialization.
4833 "incpath"
4835 From usrinc.U:
4836 This variable must preceed the normal include path to get hte right
4838 one, as in $incpath/usr/include or $incpath/usr/lib. Value can be
4839 "" or /bsd43 on mips.
4840 "inews"
4842 From Loc.U:
4843 This variable is defined but not used by Configure. The value is
4845 the empty string and is not useful.
4846 "initialinstalllocation"
4848 From bin.U:
4849 When userelocatableinc is true, this variable holds the location
4851 that make install should copy the perl binary to, with all the run-
4852 time relocatable paths calculated from this at install time. When
4853 used, it is initialised to the original value of binexp, and then
4854 binexp is set to .../, as the other binaries are found relative to
4855 the perl binary.
4856 "installarchlib"
4858 From archlib.U:
4859 This variable is really the same as archlibexp but may differ on
4861 those systems using "AFS". For extra portability, only this
4862 variable should be used in makefiles.
4863 "installbin"
4865 From bin.U:
4866 This variable is the same as binexp unless "AFS" is running in
4868 which case the user is explicitely prompted for it. This variable
4869 should always be used in your makefiles for maximum portability.
4870 "installhtml1dir"
4872 From html1dir.U:
4873 This variable is really the same as html1direxp, unless you are
4875 using a different installprefix. For extra portability, you should
4876 only use this variable within your makefiles.
4877 "installhtml3dir"
4879 From html3dir.U:
4880 This variable is really the same as html3direxp, unless you are
4882 using a different installprefix. For extra portability, you should
4883 only use this variable within your makefiles.
4884 "installman1dir"
4886 From man1dir.U:
4887 This variable is really the same as man1direxp, unless you are
4889 using "AFS" in which case it points to the read/write location
4890 whereas man1direxp only points to the read-only access location.
4891 For extra portability, you should only use this variable within
4892 your makefiles.
4893 "installman3dir"
4895 From man3dir.U:
4896 This variable is really the same as man3direxp, unless you are
4898 using "AFS" in which case it points to the read/write location
4899 whereas man3direxp only points to the read-only access location.
4900 For extra portability, you should only use this variable within
4901 your makefiles.
4902 "installprefix"
4904 From installprefix.U:
4905 This variable holds the name of the directory below which "make
4907 install" will install the package. For most users, this is the
4908 same as prefix. However, it is useful for installing the software
4909 into a different (usually temporary) location after which it can be
4910 bundled up and moved somehow to the final location specified by
4911 prefix.
4912 "installprefixexp"
4914 From installprefix.U:
4915 This variable holds the full absolute path of installprefix with
4917 all ~-expansion done.
4918 "installprivlib"
4920 From privlib.U:
4921 This variable is really the same as privlibexp but may differ on
4923 those systems using "AFS". For extra portability, only this
4924 variable should be used in makefiles.
4925 "installscript"
4927 From scriptdir.U:
4928 This variable is usually the same as scriptdirexp, unless you are
4930 on a system running "AFS", in which case they may differ slightly.
4931 You should always use this variable within your makefiles for
4932 portability.
4933 "installsitearch"
4935 From sitearch.U:
4936 This variable is really the same as sitearchexp but may differ on
4938 those systems using "AFS". For extra portability, only this
4939 variable should be used in makefiles.
4940 "installsitebin"
4942 From sitebin.U:
4943 This variable is usually the same as sitebinexp, unless you are on
4945 a system running "AFS", in which case they may differ slightly. You
4946 should always use this variable within your makefiles for
4947 portability.
4948 "installsitehtml1dir"
4950 From sitehtml1dir.U:
4951 This variable is really the same as sitehtml1direxp, unless you are
4953 using "AFS" in which case it points to the read/write location
4954 whereas html1direxp only points to the read-only access location.
4955 For extra portability, you should only use this variable within
4956 your makefiles.
4957 "installsitehtml3dir"
4959 From sitehtml3dir.U:
4960 This variable is really the same as sitehtml3direxp, unless you are
4962 using "AFS" in which case it points to the read/write location
4963 whereas html3direxp only points to the read-only access location.
4964 For extra portability, you should only use this variable within
4965 your makefiles.
4966 "installsitelib"
4968 From sitelib.U:
4969 This variable is really the same as sitelibexp but may differ on
4971 those systems using "AFS". For extra portability, only this
4972 variable should be used in makefiles.
4973 "installsiteman1dir"
4975 From siteman1dir.U:
4976 This variable is really the same as siteman1direxp, unless you are
4978 using "AFS" in which case it points to the read/write location
4979 whereas man1direxp only points to the read-only access location.
4980 For extra portability, you should only use this variable within
4981 your makefiles.
4982 "installsiteman3dir"
4984 From siteman3dir.U:
4985 This variable is really the same as siteman3direxp, unless you are
4987 using "AFS" in which case it points to the read/write location
4988 whereas man3direxp only points to the read-only access location.
4989 For extra portability, you should only use this variable within
4990 your makefiles.
4991 "installsitescript"
4993 From sitescript.U:
4994 This variable is usually the same as sitescriptexp, unless you are
4996 on a system running "AFS", in which case they may differ slightly.
4997 You should always use this variable within your makefiles for
4998 portability.
4999 "installstyle"
5001 From installstyle.U:
5002 This variable describes the "style" of the perl installation. This
5004 is intended to be useful for tools that need to manipulate entire
5005 perl distributions. Perl itself doesn't use this to find its
5006 libraries -- the library directories are stored directly in
5007 Config.pm. Currently, there are only two styles: "lib" and
5008 lib/perl5. The default library locations (e.g. privlib, sitelib)
5009 are either $prefix/lib or $prefix/lib/perl5. The former is useful
5010 if $prefix is a directory dedicated to perl (e.g. /opt/perl), while
5011 the latter is useful if $prefix is shared by many packages, e.g. if
5012 $prefix=/usr/local.
5013 Unfortunately, while this "style" variable is used to set defaults
5015 for all three directory hierarchies (core, vendor, and site), there
5016 is no guarantee that the same style is actually appropriate for all
5017 those directories. For example, $prefix might be /opt/perl, but
5018 $siteprefix might be /usr/local. (Perhaps, in retrospect, the
5019 "lib" style should never have been supported, but it did seem like
5020 a nice idea at the time.)
5021 The situation is even less clear for tools such as MakeMaker that
5023 can be used to install additional modules into non-standard places.
5024 For example, if a user intends to install a module into a private
5025 directory (perhaps by setting "PREFIX" on the Makefile.PL command
5026 line), then there is no reason to assume that the Configure-time
5027 $installstyle setting will be relevant for that "PREFIX".
5028 This may later be extended to include other information, so be
5030 careful with pattern-matching on the results.
5031 For compatibility with perl5.005 and earlier, the default setting
5033 is based on whether or not $prefix contains the string "perl".
5034 "installusrbinperl"
5036 From instubperl.U:
5037 This variable tells whether Perl should be installed also as
5039 /usr/bin/perl in addition to $installbin/perl
5040 "installvendorarch"
5042 From vendorarch.U:
5043 This variable is really the same as vendorarchexp but may differ on
5045 those systems using "AFS". For extra portability, only this
5046 variable should be used in makefiles.
5047 "installvendorbin"
5049 From vendorbin.U:
5050 This variable is really the same as vendorbinexp but may differ on
5052 those systems using "AFS". For extra portability, only this
5053 variable should be used in makefiles.
5054 "installvendorhtml1dir"
5056 From vendorhtml1dir.U:
5057 This variable is really the same as vendorhtml1direxp but may
5059 differ on those systems using "AFS". For extra portability, only
5060 this variable should be used in makefiles.
5061 "installvendorhtml3dir"
5063 From vendorhtml3dir.U:
5064 This variable is really the same as vendorhtml3direxp but may
5066 differ on those systems using "AFS". For extra portability, only
5067 this variable should be used in makefiles.
5068 "installvendorlib"
5070 From vendorlib.U:
5071 This variable is really the same as vendorlibexp but may differ on
5073 those systems using "AFS". For extra portability, only this
5074 variable should be used in makefiles.
5075 "installvendorman1dir"
5077 From vendorman1dir.U:
5078 This variable is really the same as vendorman1direxp but may differ
5080 on those systems using "AFS". For extra portability, only this
5081 variable should be used in makefiles.
5082 "installvendorman3dir"
5084 From vendorman3dir.U:
5085 This variable is really the same as vendorman3direxp but may differ
5087 on those systems using "AFS". For extra portability, only this
5088 variable should be used in makefiles.
5089 "installvendorscript"
5091 From vendorscript.U:
5092 This variable is really the same as vendorscriptexp but may differ
5094 on those systems using "AFS". For extra portability, only this
5095 variable should be used in makefiles.
5096 "intsize"
5098 From intsize.U:
5099 This variable contains the value of the "INTSIZE" symbol, which
5101 indicates to the C program how many bytes there are in an int.
5102 "issymlink"
5104 From issymlink.U:
5105 This variable holds the test command to test for a symbolic link
5107 (if they are supported). Typical values include "test -h" and
5108 "test -L".
5109 "ivdformat"
5111 From perlxvf.U:
5112 This variable contains the format string used for printing a Perl
5114 "IV" as a signed decimal integer.
5115 "ivsize"
5117 From perlxv.U:
5118 This variable is the size of an "IV" in bytes.
5120 "ivtype"
5122 From perlxv.U:
5123 This variable contains the C type used for Perl's "IV".
5125 k
5127 "known_extensions"
5128 From Extensions.U:
5129 This variable holds a list of all "XS" extensions included in the
5131 package.
5132 "ksh"
5134 From Loc.U:
5135 This variable is defined but not used by Configure. The value is
5137 the empty string and is not useful.
5138 l
5140 "ld"
5141 From dlsrc.U:
5142 This variable indicates the program to be used to link libraries
5144 for dynamic loading. On some systems, it is "ld". On "ELF"
5145 systems, it should be $cc. Mostly, we'll try to respect the hint
5146 file setting.
5147 "lddlflags"
5149 From dlsrc.U:
5150 This variable contains any special flags that might need to be
5152 passed to $ld to create a shared library suitable for dynamic
5153 loading. It is up to the makefile to use it. For hpux, it should
5154 be "-b". For sunos 4.1, it is empty.
5155 "ldflags"
5157 From ccflags.U:
5158 This variable contains any additional C loader flags desired by the
5160 user. It is up to the Makefile to use this.
5161 "ldflags_uselargefiles"
5163 From uselfs.U:
5164 This variable contains the loader flags needed by large file builds
5166 and added to ldflags by hints files.
5167 "ldlibpthname"
5169 From libperl.U:
5170 This variable holds the name of the shared library search path,
5172 often "LD_LIBRARY_PATH". To get an empty string, the hints file
5173 must set this to "none".
5174 "less"
5176 From Loc.U:
5177 This variable is used internally by Configure to determine the full
5179 pathname (if any) of the less program. After Configure runs, the
5180 value is reset to a plain "less" and is not useful.
5181 "lib_ext"
5183 From Unix.U:
5184 This is an old synonym for _a.
5186 "libc"
5188 From libc.U:
5189 This variable contains the location of the C library.
5191 "libperl"
5193 From libperl.U:
5194 The perl executable is obtained by linking perlmain.c with libperl,
5196 any static extensions (usually just DynaLoader), and any other
5197 libraries needed on this system. libperl is usually libperl.a, but
5198 can also be libperl.so.xxx if the user wishes to build a perl
5199 executable with a shared library.
5200 "libpth"
5202 From libpth.U:
5203 This variable holds the general path (space-separated) used to find
5205 libraries. It is intended to be used by other units.
5206 "libs"
5208 From libs.U:
5209 This variable holds the additional libraries we want to use. It is
5211 up to the Makefile to deal with it. The list can be empty.
5212 "libsdirs"
5214 From libs.U:
5215 This variable holds the directory names aka dirnames of the
5217 libraries we found and accepted, duplicates are removed.
5218 "libsfiles"
5220 From libs.U:
5221 This variable holds the filenames aka basenames of the libraries we
5223 found and accepted.
5224 "libsfound"
5226 From libs.U:
5227 This variable holds the full pathnames of the libraries we found
5229 and accepted.
5230 "libspath"
5232 From libs.U:
5233 This variable holds the directory names probed for libraries.
5235 "libswanted"
5237 From Myinit.U:
5238 This variable holds a list of all the libraries we want to search.
5240 The order is chosen to pick up the c library ahead of ucb or bsd
5241 libraries for SVR4.
5242 "libswanted_uselargefiles"
5244 From uselfs.U:
5245 This variable contains the libraries needed by large file builds
5247 and added to ldflags by hints files. It is a space separated list
5248 of the library names without the "lib" prefix or any suffix, just
5249 like libswanted..
5250 "line"
5252 From Loc.U:
5253 This variable is defined but not used by Configure. The value is
5255 the empty string and is not useful.
5256 "lint"
5258 From Loc.U:
5259 This variable is defined but not used by Configure. The value is
5261 the empty string and is not useful.
5262 "lkflags"
5264 From ccflags.U:
5265 This variable contains any additional C partial linker flags
5267 desired by the user. It is up to the Makefile to use this.
5268 "ln"
5270 From Loc.U:
5271 This variable is used internally by Configure to determine the full
5273 pathname (if any) of the ln program. After Configure runs, the
5274 value is reset to a plain "ln" and is not useful.
5275 "lns"
5277 From lns.U:
5278 This variable holds the name of the command to make symbolic links
5280 (if they are supported). It can be used in the Makefile. It is
5281 either "ln -s" or "ln"
5282 "localtime_r_proto"
5284 From d_localtime_r.U:
5285 This variable encodes the prototype of localtime_r. It is zero if
5287 d_localtime_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
5288 macros of reentr.h if d_localtime_r is defined.
5289 "locincpth"
5291 From ccflags.U:
5292 This variable contains a list of additional directories to be
5294 searched by the compiler. The appropriate "-I" directives will be
5295 added to ccflags. This is intended to simplify setting local
5296 directories from the Configure command line. It's not much, but it
5297 parallels the loclibpth stuff in libpth.U.
5298 "loclibpth"
5300 From libpth.U:
5301 This variable holds the paths (space-separated) used to find local
5303 libraries. It is prepended to libpth, and is intended to be easily
5304 set from the command line.
5305 "longdblsize"
5307 From d_longdbl.U:
5308 This variable contains the value of the "LONG_DOUBLESIZE" symbol,
5310 which indicates to the C program how many bytes there are in a long
5311 double, if this system supports long doubles.
5312 "longlongsize"
5314 From d_longlong.U:
5315 This variable contains the value of the "LONGLONGSIZE" symbol,
5317 which indicates to the C program how many bytes there are in a long
5318 long, if this system supports long long.
5319 "longsize"
5321 From intsize.U:
5322 This variable contains the value of the "LONGSIZE" symbol, which
5324 indicates to the C program how many bytes there are in a long.
5325 "lp"
5327 From Loc.U:
5328 This variable is defined but not used by Configure. The value is
5330 the empty string and is not useful.
5331 "lpr"
5333 From Loc.U:
5334 This variable is defined but not used by Configure. The value is
5336 the empty string and is not useful.
5337 "ls"
5339 From Loc.U:
5340 This variable is used internally by Configure to determine the full
5342 pathname (if any) of the ls program. After Configure runs, the
5343 value is reset to a plain "ls" and is not useful.
5344 "lseeksize"
5346 From lseektype.U:
5347 This variable defines lseektype to be something like off_t, long,
5349 or whatever type is used to declare lseek offset's type in the
5350 kernel (which also appears to be lseek's return type).
5351 "lseektype"
5353 From lseektype.U:
5354 This variable defines lseektype to be something like off_t, long,
5356 or whatever type is used to declare lseek offset's type in the
5357 kernel (which also appears to be lseek's return type).
5358 m
5360 "mad"
5361 From mad.U:
5362 This variable indicates that the Misc Attribute Definition code is
5364 to be compiled.
5365 "madlyh"
5367 From mad.U:
5368 If the Misc Attribute Decoration is to be compiled, this variable
5370 is set to the name of the extra header files to be used, else it is
5371 ''
5372 "madlyobj"
5374 From mad.U:
5375 If the Misc Attribute Decoration is to be compiled, this variable
5377 is set to the name of the extra object files to be used, else it is
5378 ''
5379 "madlysrc"
5381 From mad.U:
5382 If the Misc Attribute Decoration is to be compiled, this variable
5384 is set to the name of the extra C source files to be used, else it
5385 is ''
5386 "mail"
5388 From Loc.U:
5389 This variable is defined but not used by Configure. The value is
5391 the empty string and is not useful.
5392 "mailx"
5394 From Loc.U:
5395 This variable is defined but not used by Configure. The value is
5397 the empty string and is not useful.
5398 "make"
5400 From Loc.U:
5401 This variable is used internally by Configure to determine the full
5403 pathname (if any) of the make program. After Configure runs, the
5404 value is reset to a plain "make" and is not useful.
5405 "make_set_make"
5407 From make.U:
5408 Some versions of "make" set the variable "MAKE". Others do not.
5410 This variable contains the string to be included in Makefile.SH so
5411 that "MAKE" is set if needed, and not if not needed. Possible
5412 values are:
5413 make_set_make="#" # If your make program handles this for
5415 you,
5416 make_set_make="MAKE=$make" # if it doesn't.
5418 This uses a comment character so that we can distinguish a "set"
5420 value (from a previous config.sh or Configure "-D" option) from an
5421 uncomputed value.
5422 "mallocobj"
5424 From mallocsrc.U:
5425 This variable contains the name of the malloc.o that this package
5427 generates, if that malloc.o is preferred over the system malloc.
5428 Otherwise the value is null. This variable is intended for
5429 generating Makefiles. See mallocsrc.
5430 "mallocsrc"
5432 From mallocsrc.U:
5433 This variable contains the name of the malloc.c that comes with the
5435 package, if that malloc.c is preferred over the system malloc.
5436 Otherwise the value is null. This variable is intended for
5437 generating Makefiles.
5438 "malloctype"
5440 From mallocsrc.U:
5441 This variable contains the kind of ptr returned by malloc and
5443 realloc.
5444 "man1dir"
5446 From man1dir.U:
5447 This variable contains the name of the directory in which manual
5449 source pages are to be put. It is the responsibility of the
5450 Makefile.SH to get the value of this into the proper command. You
5451 must be prepared to do the ~name expansion yourself.
5452 "man1direxp"
5454 From man1dir.U:
5455 This variable is the same as the man1dir variable, but is filename
5457 expanded at configuration time, for convenient use in makefiles.
5458 "man1ext"
5460 From man1dir.U:
5461 This variable contains the extension that the manual page should
5463 have: one of "n", "l", or 1. The Makefile must supply the .. See
5464 man1dir.
5465 "man3dir"
5467 From man3dir.U:
5468 This variable contains the name of the directory in which manual
5470 source pages are to be put. It is the responsibility of the
5471 Makefile.SH to get the value of this into the proper command. You
5472 must be prepared to do the ~name expansion yourself.
5473 "man3direxp"
5475 From man3dir.U:
5476 This variable is the same as the man3dir variable, but is filename
5478 expanded at configuration time, for convenient use in makefiles.
5479 "man3ext"
5481 From man3dir.U:
5482 This variable contains the extension that the manual page should
5484 have: one of "n", "l", or 3. The Makefile must supply the .. See
5485 man3dir.
5486 "mips_type"
5488 From usrinc.U:
5489 This variable holds the environment type for the mips system.
5491 Possible values are "BSD 4.3" and "System V".
5492 "mistrustnm"
5494 From Csym.U:
5495 This variable can be used to establish a fallthrough for the cases
5497 where nm fails to find a symbol. If usenm is false or usenm is
5498 true and mistrustnm is false, this variable has no effect. If
5499 usenm is true and mistrustnm is "compile", a test program will be
5500 compiled to try to find any symbol that can't be located via nm
5501 lookup. If mistrustnm is "run", the test program will be run as
5502 well as being compiled.
5503 "mkdir"
5505 From Loc.U:
5506 This variable is used internally by Configure to determine the full
5508 pathname (if any) of the mkdir program. After Configure runs, the
5509 value is reset to a plain "mkdir" and is not useful.
5510 "mmaptype"
5512 From d_mmap.U:
5513 This symbol contains the type of pointer returned by mmap() (and
5515 simultaneously the type of the first argument). It can be "void *"
5516 or "caddr_t".
5517 "modetype"
5519 From modetype.U:
5520 This variable defines modetype to be something like mode_t, int,
5522 unsigned short, or whatever type is used to declare file modes for
5523 system calls.
5524 "more"
5526 From Loc.U:
5527 This variable is used internally by Configure to determine the full
5529 pathname (if any) of the more program. After Configure runs, the
5530 value is reset to a plain "more" and is not useful.
5531 "multiarch"
5533 From multiarch.U:
5534 This variable conditionally defines the "MULTIARCH" symbol which
5536 signifies the presence of multiplatform files. This is normally
5537 set by hints files.
5538 "mv"
5540 From Loc.U:
5541 This variable is defined but not used by Configure. The value is
5543 the empty string and is not useful.
5544 "myarchname"
5546 From archname.U:
5547 This variable holds the architecture name computed by Configure in
5549 a previous run. It is not intended to be perused by any user and
5550 should never be set in a hint file.
5551 "mydomain"
5553 From myhostname.U:
5554 This variable contains the eventual value of the "MYDOMAIN" symbol,
5556 which is the domain of the host the program is going to run on.
5557 The domain must be appended to myhostname to form a complete host
5558 name. The dot comes with mydomain, and need not be supplied by the
5559 program.
5560 "myhostname"
5562 From myhostname.U:
5563 This variable contains the eventual value of the "MYHOSTNAME"
5565 symbol, which is the name of the host the program is going to run
5566 on. The domain is not kept with hostname, but must be gotten from
5567 mydomain. The dot comes with mydomain, and need not be supplied by
5568 the program.
5569 "myuname"
5571 From Oldconfig.U:
5572 The output of "uname -a" if available, otherwise the hostname. On
5574 Xenix, pseudo variables assignments in the output are stripped,
5575 thank you. The whole thing is then lower-cased.
5576 n
5578 "n" From n.U:
5579 This variable contains the "-n" flag if that is what causes the
5581 echo command to suppress newline. Otherwise it is null. Correct
5582 usage is $echo $n "prompt for a question: $c".
5583 "need_va_copy"
5585 From need_va_copy.U:
5586 This symbol, if defined, indicates that the system stores the
5588 variable argument list datatype, va_list, in a format that cannot
5589 be copied by simple assignment, so that some other means must be
5590 used when copying is required. As such systems vary in their
5591 provision (or non-provision) of copying mechanisms, handy.h defines
5592 a platform- "independent" macro, Perl_va_copy(src, dst), to do the
5593 job.
5594 "netdb_hlen_type"
5596 From netdbtype.U:
5597 This variable holds the type used for the 2nd argument to
5599 gethostbyaddr(). Usually, this is int or size_t or unsigned. This
5600 is only useful if you have gethostbyaddr(), naturally.
5601 "netdb_host_type"
5603 From netdbtype.U:
5604 This variable holds the type used for the 1st argument to
5606 gethostbyaddr(). Usually, this is char * or void *, possibly with
5607 or without a const prefix. This is only useful if you have
5608 gethostbyaddr(), naturally.
5609 "netdb_name_type"
5611 From netdbtype.U:
5612 This variable holds the type used for the argument to
5614 gethostbyname(). Usually, this is char * or const char *. This is
5615 only useful if you have gethostbyname(), naturally.
5616 "netdb_net_type"
5618 From netdbtype.U:
5619 This variable holds the type used for the 1st argument to
5621 getnetbyaddr(). Usually, this is int or long. This is only useful
5622 if you have getnetbyaddr(), naturally.
5623 "nm"
5625 From Loc.U:
5626 This variable is used internally by Configure to determine the full
5628 pathname (if any) of the nm program. After Configure runs, the
5629 value is reset to a plain "nm" and is not useful.
5630 "nm_opt"
5632 From usenm.U:
5633 This variable holds the options that may be necessary for nm.
5635 "nm_so_opt"
5637 From usenm.U:
5638 This variable holds the options that may be necessary for nm to
5640 work on a shared library but that can not be used on an archive
5641 library. Currently, this is only used by Linux, where nm --dynamic
5642 is *required* to get symbols from an "ELF" library which has been
5643 stripped, but nm --dynamic is *fatal* on an archive library. Maybe
5644 Linux should just always set usenm=false.
5645 "nonxs_ext"
5647 From Extensions.U:
5648 This variable holds a list of all non-xs extensions included in the
5650 package. All of them will be built.
5651 "nroff"
5653 From Loc.U:
5654 This variable is used internally by Configure to determine the full
5656 pathname (if any) of the nroff program. After Configure runs, the
5657 value is reset to a plain "nroff" and is not useful.
5658 "nv_overflows_integers_at"
5660 From perlxv.U:
5661 This variable gives the largest integer value that NVs can hold as
5663 a constant floating point expression. If it could not be
5664 determined, it holds the value 0.
5665 "nv_preserves_uv_bits"
5667 From perlxv.U:
5668 This variable indicates how many of bits type uvtype a variable
5670 nvtype can preserve.
5671 "nveformat"
5673 From perlxvf.U:
5674 This variable contains the format string used for printing a Perl
5676 "NV" using %e-ish floating point format.
5677 "nvEUformat"
5679 From perlxvf.U:
5680 This variable contains the format string used for printing a Perl
5682 "NV" using %E-ish floating point format.
5683 "nvfformat"
5685 From perlxvf.U:
5686 This variable confains the format string used for printing a Perl
5688 "NV" using %f-ish floating point format.
5689 "nvFUformat"
5691 From perlxvf.U:
5692 This variable confains the format string used for printing a Perl
5694 "NV" using %F-ish floating point format.
5695 "nvgformat"
5697 From perlxvf.U:
5698 This variable contains the format string used for printing a Perl
5700 "NV" using %g-ish floating point format.
5701 "nvGUformat"
5703 From perlxvf.U:
5704 This variable contains the format string used for printing a Perl
5706 "NV" using %G-ish floating point format.
5707 "nvsize"
5709 From perlxv.U:
5710 This variable is the size of an "NV" in bytes.
5712 "nvtype"
5714 From perlxv.U:
5715 This variable contains the C type used for Perl's "NV".
5717 o
5719 "o_nonblock"
5720 From nblock_io.U:
5721 This variable bears the symbol value to be used during open() or
5723 fcntl() to turn on non-blocking I/O for a file descriptor. If you
5724 wish to switch between blocking and non-blocking, you may try
5725 ioctl("FIOSNBIO") instead, but that is only supported by some
5726 devices.
5727 "obj_ext"
5729 From Unix.U:
5730 This is an old synonym for _o.
5732 "old_pthread_create_joinable"
5734 From d_pthrattrj.U:
5735 This variable defines the constant to use for creating joinable
5737 (aka undetached) pthreads. Unused if pthread.h defines
5738 "PTHREAD_CREATE_JOINABLE". If used, possible values are
5739 "PTHREAD_CREATE_UNDETACHED" and "__UNDETACHED".
5740 "optimize"
5742 From ccflags.U:
5743 This variable contains any optimizer/debugger flag that should be
5745 used. It is up to the Makefile to use it.
5746 "orderlib"
5748 From orderlib.U:
5749 This variable is "true" if the components of libraries must be
5751 ordered (with `lorder $* | tsort`) before placing them in an
5752 archive. Set to "false" if ranlib or ar can generate random
5753 libraries.
5754 "osname"
5756 From Oldconfig.U:
5757 This variable contains the operating system name (e.g. sunos,
5759 solaris, hpux, etc.). It can be useful later on for setting
5760 defaults. Any spaces are replaced with underscores. It is set to
5761 a null string if we can't figure it out.
5762 "osvers"
5764 From Oldconfig.U:
5765 This variable contains the operating system version (e.g. 4.1.3,
5767 5.2, etc.). It is primarily used for helping select an appropriate
5768 hints file, but might be useful elsewhere for setting defaults. It
5769 is set to '' if we can't figure it out. We try to be flexible
5770 about how much of the version number to keep, e.g. if 4.1.1, 4.1.2,
5771 and 4.1.3 are essentially the same for this package, hints files
5772 might just be os_4.0 or os_4.1, etc., not keeping separate files
5773 for each little release.
5774 "otherlibdirs"
5776 From otherlibdirs.U:
5777 This variable contains a colon-separated set of paths for the perl
5779 binary to search for additional library files or modules. These
5780 directories will be tacked to the end of @"INC". Perl will
5781 automatically search below each path for version- and architecture-
5782 specific directories. See inc_version_list for more details. A
5783 value of " " means "none" and is used to preserve this value for
5784 the next run through Configure.
5785 p
5787 "package"
5788 From package.U:
5789 This variable contains the name of the package being constructed.
5791 It is primarily intended for the use of later Configure units.
5792 "pager"
5794 From pager.U:
5795 This variable contains the name of the preferred pager on the
5797 system. Usual values are (the full pathnames of) more, less, pg,
5798 or cat.
5799 "passcat"
5801 From nis.U:
5802 This variable contains a command that produces the text of the
5804 /etc/passwd file. This is normally "cat /etc/passwd", but can be
5805 "ypcat passwd" when "NIS" is used. On some systems, such as os390,
5806 there may be no equivalent command, in which case this variable is
5807 unset.
5808 "patchlevel"
5810 From patchlevel.U:
5811 The patchlevel level of this package. The value of patchlevel
5813 comes from the patchlevel.h file. In a version number such as
5814 5.6.1, this is the 6. In patchlevel.h, this is referred to as
5815 "PERL_VERSION".
5816 "path_sep"
5818 From Unix.U:
5819 This is an old synonym for p_ in Head.U, the character used to
5821 separate elements in the command shell search "PATH".
5822 "perl"
5824 From Loc.U:
5825 This variable is defined but not used by Configure. The value is
5827 the empty string and is not useful.
5828 "perl5"
5830 From perl5.U:
5831 This variable contains the full path (if any) to a previously
5833 installed perl5.005 or later suitable for running the script to
5834 determine inc_version_list.
5835 P
5837 "PERL_API_REVISION"
5838 From patchlevel.h:
5839 This number describes the earliest compatible "PERL_REVISION" of
5841 Perl ("compatibility" here being defined as sufficient binary/"API"
5842 compatibility to run "XS" code built with the older version).
5843 Normally this does not change across maintenance releases. Please
5844 read the comment in patchlevel.h.
5845 "PERL_API_SUBVERSION"
5847 From patchlevel.h:
5848 This number describes the earliest compatible "PERL_SUBVERSION" of
5850 Perl ("compatibility" here being defined as sufficient binary/"API"
5851 compatibility to run "XS" code built with the older version).
5852 Normally this does not change across maintenance releases. Please
5853 read the comment in patchlevel.h.
5854 "PERL_API_VERSION"
5856 From patchlevel.h:
5857 This number describes the earliest compatible "PERL_VERSION" of
5859 Perl ("compatibility" here being defined as sufficient binary/"API"
5860 compatibility to run "XS" code built with the older version).
5861 Normally this does not change across maintenance releases. Please
5862 read the comment in patchlevel.h.
5863 "PERL_CONFIG_SH"
5865 From Oldsyms.U:
5866 This is set to "true" in config.sh so that a shell script sourcing
5868 config.sh can tell if it has been sourced already.
5869 "PERL_PATCHLEVEL"
5871 From Oldsyms.U:
5872 This symbol reflects the patchlevel, if available. Will usually
5874 come from the .patch file, which is available when the perl source
5875 tree was fetched with rsync.
5876 "perl_patchlevel"
5878 From patchlevel.U:
5879 This is the Perl patch level, a numeric change identifier, as
5881 defined by whichever source code maintenance system is used to
5882 maintain the patches; currently Perforce. It does not correlate
5883 with the Perl version numbers or the maintenance versus development
5884 dichotomy except by also being increasing.
5885 "PERL_REVISION"
5887 From Oldsyms.U:
5888 In a Perl version number such as 5.6.2, this is the 5. This value
5890 is manually set in patchlevel.h
5891 "PERL_SUBVERSION"
5893 From Oldsyms.U:
5894 In a Perl version number such as 5.6.2, this is the 2. Values
5896 greater than 50 represent potentially unstable development
5897 subversions. This value is manually set in patchlevel.h
5898 "PERL_VERSION"
5900 From Oldsyms.U:
5901 In a Perl version number such as 5.6.2, this is the 6. This value
5903 is manually set in patchlevel.h
5904 "perladmin"
5906 From perladmin.U:
5907 Electronic mail address of the perl5 administrator.
5909 "perllibs"
5911 From End.U:
5912 The list of libraries needed by Perl only (any libraries needed by
5914 extensions only will by dropped, if using dynamic loading).
5915 "perlpath"
5917 From perlpath.U:
5918 This variable contains the eventual value of the "PERLPATH" symbol,
5920 which contains the name of the perl interpreter to be used in shell
5921 scripts and in the "eval "exec"" idiom. This variable is not
5922 necessarily the pathname of the file containing the perl
5923 interpreter; you must append the executable extension (_exe) if it
5924 is not already present. Note that Perl code that runs during the
5925 Perl build process cannot reference this variable, as Perl may not
5926 have been installed, or even if installed, may be a different
5927 version of Perl.
5928 "pg"
5930 From Loc.U:
5931 This variable is used internally by Configure to determine the full
5933 pathname (if any) of the pg program. After Configure runs, the
5934 value is reset to a plain "pg" and is not useful.
5935 "phostname"
5937 From myhostname.U:
5938 This variable contains the eventual value of the "PHOSTNAME"
5940 symbol, which is a command that can be fed to popen() to get the
5941 host name. The program should probably not presume that the domain
5942 is or isn't there already.
5943 "pidtype"
5945 From pidtype.U:
5946 This variable defines "PIDTYPE" to be something like pid_t, int,
5948 ushort, or whatever type is used to declare process ids in the
5949 kernel.
5950 "plibpth"
5952 From libpth.U:
5953 Holds the private path used by Configure to find out the libraries.
5955 Its value is prepend to libpth. This variable takes care of special
5956 machines, like the mips. Usually, it should be empty.
5957 "pmake"
5959 From Loc.U:
5960 This variable is defined but not used by Configure. The value is
5962 the empty string and is not useful.
5963 "pr"
5965 From Loc.U:
5966 This variable is defined but not used by Configure. The value is
5968 the empty string and is not useful.
5969 "prefix"
5971 From prefix.U:
5972 This variable holds the name of the directory below which the user
5974 will install the package. Usually, this is /usr/local, and
5975 executables go in /usr/local/bin, library stuff in /usr/local/lib,
5976 man pages in /usr/local/man, etc. It is only used to set defaults
5977 for things in bin.U, mansrc.U, privlib.U, or scriptdir.U.
5978 "prefixexp"
5980 From prefix.U:
5981 This variable holds the full absolute path of the directory below
5983 which the user will install the package. Derived from prefix.
5984 "privlib"
5986 From privlib.U:
5987 This variable contains the eventual value of the "PRIVLIB" symbol,
5989 which is the name of the private library for this package. It may
5990 have a ~ on the front. It is up to the makefile to eventually
5991 create this directory while performing installation (with ~
5992 substitution).
5993 "privlibexp"
5995 From privlib.U:
5996 This variable is the ~name expanded version of privlib, so that you
5998 may use it directly in Makefiles or shell scripts.
5999 "procselfexe"
6001 From d_procselfexe.U:
6002 If d_procselfexe is defined, $procselfexe is the filename of the
6004 symbolic link pointing to the absolute pathname of the executing
6005 program.
6006 "prototype"
6008 From prototype.U:
6009 This variable holds the eventual value of "CAN_PROTOTYPE", which
6011 indicates the C compiler can handle funciton prototypes.
6012 "ptrsize"
6014 From ptrsize.U:
6015 This variable contains the value of the "PTRSIZE" symbol, which
6017 indicates to the C program how many bytes there are in a pointer.
6018 q
6020 "quadkind"
6021 From quadtype.U:
6022 This variable, if defined, encodes the type of a quad: 1 = int, 2 =
6024 long, 3 = long long, 4 = int64_t.
6025 "quadtype"
6027 From quadtype.U:
6028 This variable defines Quad_t to be something like long, int, long
6030 long, int64_t, or whatever type is used for 64-bit integers.
6031 r
6033 "randbits"
6034 From randfunc.U:
6035 Indicates how many bits are produced by the function used to
6037 generate normalized random numbers.
6038 "randfunc"
6040 From randfunc.U:
6041 Indicates the name of the random number function to use. Values
6043 include drand48, random, and rand. In C programs, the "Drand01"
6044 macro is defined to generate uniformly distributed random numbers
6045 over the range [0., 1.[ (see drand01 and nrand).
6046 "random_r_proto"
6048 From d_random_r.U:
6049 This variable encodes the prototype of random_r. It is zero if
6051 d_random_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
6052 of reentr.h if d_random_r is defined.
6053 "randseedtype"
6055 From randfunc.U:
6056 Indicates the type of the argument of the seedfunc.
6058 "ranlib"
6060 From orderlib.U:
6061 This variable is set to the pathname of the ranlib program, if it
6063 is needed to generate random libraries. Set to ":" if ar can
6064 generate random libraries or if random libraries are not supported
6065 "rd_nodata"
6067 From nblock_io.U:
6068 This variable holds the return code from read() when no data is
6070 present. It should be -1, but some systems return 0 when "O_NDELAY"
6071 is used, which is a shame because you cannot make the difference
6072 between no data and an EOF.. Sigh!
6073 "readdir64_r_proto"
6075 From d_readdir64_r.U:
6076 This variable encodes the prototype of readdir64_r. It is zero if
6078 d_readdir64_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
6079 macros of reentr.h if d_readdir64_r is defined.
6080 "readdir_r_proto"
6082 From d_readdir_r.U:
6083 This variable encodes the prototype of readdir_r. It is zero if
6085 d_readdir_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
6086 of reentr.h if d_readdir_r is defined.
6087 "revision"
6089 From patchlevel.U:
6090 The value of revision comes from the patchlevel.h file. In a
6092 version number such as 5.6.1, this is the 5. In patchlevel.h, this
6093 is referred to as "PERL_REVISION".
6094 "rm"
6096 From Loc.U:
6097 This variable is used internally by Configure to determine the full
6099 pathname (if any) of the rm program. After Configure runs, the
6100 value is reset to a plain "rm" and is not useful.
6101 "rm_try"
6103 From Unix.U:
6104 This is a cleanup variable for try test programs. Internal
6106 Configure use only.
6107 "rmail"
6109 From Loc.U:
6110 This variable is defined but not used by Configure. The value is
6112 the empty string and is not useful.
6113 "run"
6115 From Cross.U:
6116 This variable contains the command used by Configure to copy and
6118 execute a cross-compiled executable in the target host. Useful and
6119 available only during Perl build. Empty string '' if not cross-
6120 compiling.
6121 "runnm"
6123 From usenm.U:
6124 This variable contains "true" or "false" depending whether the nm
6126 extraction should be performed or not, according to the value of
6127 usenm and the flags on the Configure command line.
6128 s
6130 "sched_yield"
6131 From d_pthread_y.U:
6132 This variable defines the way to yield the execution of the current
6134 thread.
6135 "scriptdir"
6137 From scriptdir.U:
6138 This variable holds the name of the directory in which the user
6140 wants to put publicly scripts for the package in question. It is
6141 either the same directory as for binaries, or a special one that
6142 can be mounted across different architectures, like /usr/share.
6143 Programs must be prepared to deal with ~name expansion.
6144 "scriptdirexp"
6146 From scriptdir.U:
6147 This variable is the same as scriptdir, but is filename expanded at
6149 configuration time, for programs not wanting to bother with it.
6150 "sed"
6152 From Loc.U:
6153 This variable is used internally by Configure to determine the full
6155 pathname (if any) of the sed program. After Configure runs, the
6156 value is reset to a plain "sed" and is not useful.
6157 "seedfunc"
6159 From randfunc.U:
6160 Indicates the random number generating seed function. Values
6162 include srand48, srandom, and srand.
6163 "selectminbits"
6165 From selectminbits.U:
6166 This variable holds the minimum number of bits operated by select.
6168 That is, if you do select(n, ...), how many bits at least will be
6169 cleared in the masks if some activity is detected. Usually this is
6170 either n or 32*ceil(n/32), especially many little-endians do the
6171 latter. This is only useful if you have select(), naturally.
6172 "selecttype"
6174 From selecttype.U:
6175 This variable holds the type used for the 2nd, 3rd, and 4th
6177 arguments to select. Usually, this is "fd_set *", if "HAS_FD_SET"
6178 is defined, and "int *" otherwise. This is only useful if you have
6179 select(), naturally.
6180 "sendmail"
6182 From Loc.U:
6183 This variable is defined but not used by Configure. The value is
6185 the empty string and is not useful.
6186 "setgrent_r_proto"
6188 From d_setgrent_r.U:
6189 This variable encodes the prototype of setgrent_r. It is zero if
6191 d_setgrent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
6192 macros of reentr.h if d_setgrent_r is defined.
6193 "sethostent_r_proto"
6195 From d_sethostent_r.U:
6196 This variable encodes the prototype of sethostent_r. It is zero if
6198 d_sethostent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
6199 macros of reentr.h if d_sethostent_r is defined.
6200 "setlocale_r_proto"
6202 From d_setlocale_r.U:
6203 This variable encodes the prototype of setlocale_r. It is zero if
6205 d_setlocale_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
6206 macros of reentr.h if d_setlocale_r is defined.
6207 "setnetent_r_proto"
6209 From d_setnetent_r.U:
6210 This variable encodes the prototype of setnetent_r. It is zero if
6212 d_setnetent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
6213 macros of reentr.h if d_setnetent_r is defined.
6214 "setprotoent_r_proto"
6216 From d_setprotoent_r.U:
6217 This variable encodes the prototype of setprotoent_r. It is zero
6219 if d_setprotoent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
6220 macros of reentr.h if d_setprotoent_r is defined.
6221 "setpwent_r_proto"
6223 From d_setpwent_r.U:
6224 This variable encodes the prototype of setpwent_r. It is zero if
6226 d_setpwent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
6227 macros of reentr.h if d_setpwent_r is defined.
6228 "setservent_r_proto"
6230 From d_setservent_r.U:
6231 This variable encodes the prototype of setservent_r. It is zero if
6233 d_setservent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
6234 macros of reentr.h if d_setservent_r is defined.
6235 "sGMTIME_max"
6237 From time_size.U:
6238 This variable defines the maximum value of the time_t offset that
6240 the system function gmtime () accepts
6241 "sGMTIME_min"
6243 From time_size.U:
6244 This variable defines the minimum value of the time_t offset that
6246 the system function gmtime () accepts
6247 "sh"
6249 From sh.U:
6250 This variable contains the full pathname of the shell used on this
6252 system to execute Bourne shell scripts. Usually, this will be
6253 /bin/sh, though it's possible that some systems will have /bin/ksh,
6254 /bin/pdksh, /bin/ash, /bin/bash, or even something such as
6255 D:/bin/sh.exe. This unit comes before Options.U, so you can't set
6256 sh with a "-D" option, though you can override this (and startsh)
6257 with "-O -Dsh=/bin/whatever -Dstartsh=whatever"
6258 "shar"
6260 From Loc.U:
6261 This variable is defined but not used by Configure. The value is
6263 the empty string and is not useful.
6264 "sharpbang"
6266 From spitshell.U:
6267 This variable contains the string #! if this system supports that
6269 construct.
6270 "shmattype"
6272 From d_shmat.U:
6273 This symbol contains the type of pointer returned by shmat(). It
6275 can be "void *" or "char *".
6276 "shortsize"
6278 From intsize.U:
6279 This variable contains the value of the "SHORTSIZE" symbol which
6281 indicates to the C program how many bytes there are in a short.
6282 "shrpenv"
6284 From libperl.U:
6285 If the user builds a shared libperl.so, then we need to tell the
6287 "perl" executable where it will be able to find the installed
6288 libperl.so. One way to do this on some systems is to set the
6289 environment variable "LD_RUN_PATH" to the directory that will be
6290 the final location of the shared libperl.so. The makefile can use
6291 this with something like $shrpenv $("CC") -o perl perlmain.o
6292 $libperl $libs Typical values are shrpenv="env
6293 "LD_RUN_PATH"=$archlibexp/"CORE"" or shrpenv='' See the main perl
6294 Makefile.SH for actual working usage. Alternatively, we might be
6295 able to use a command line option such as -R $archlibexp/"CORE"
6296 (Solaris) or -Wl,-rpath $archlibexp/"CORE" (Linux).
6297 "shsharp"
6299 From spitshell.U:
6300 This variable tells further Configure units whether your sh can
6302 handle # comments.
6303 "sig_count"
6305 From sig_name.U:
6306 This variable holds a number larger than the largest valid signal
6308 number. This is usually the same as the "NSIG" macro.
6309 "sig_name"
6311 From sig_name.U:
6312 This variable holds the signal names, space separated. The leading
6314 "SIG" in signal name is removed. A "ZERO" is prepended to the
6315 list. This is currently not used, sig_name_init is used instead.
6316 "sig_name_init"
6318 From sig_name.U:
6319 This variable holds the signal names, enclosed in double quotes and
6321 separated by commas, suitable for use in the "SIG_NAME" definition
6322 below. A "ZERO" is prepended to the list, and the list is
6323 terminated with a plain 0. The leading "SIG" in signal names is
6324 removed. See sig_num.
6325 "sig_num"
6327 From sig_name.U:
6328 This variable holds the signal numbers, space separated. A "ZERO"
6330 is prepended to the list (corresponding to the fake "SIGZERO").
6331 Those numbers correspond to the value of the signal listed in the
6332 same place within the sig_name list. This is currently not used,
6333 sig_num_init is used instead.
6334 "sig_num_init"
6336 From sig_name.U:
6337 This variable holds the signal numbers, enclosed in double quotes
6339 and separated by commas, suitable for use in the "SIG_NUM"
6340 definition below. A "ZERO" is prepended to the list, and the list
6341 is terminated with a plain 0.
6342 "sig_size"
6344 From sig_name.U:
6345 This variable contains the number of elements of the sig_name and
6347 sig_num arrays.
6348 "signal_t"
6350 From d_voidsig.U:
6351 This variable holds the type of the signal handler (void or int).
6353 "sitearch"
6355 From sitearch.U:
6356 This variable contains the eventual value of the "SITEARCH" symbol,
6358 which is the name of the private library for this package. It may
6359 have a ~ on the front. It is up to the makefile to eventually
6360 create this directory while performing installation (with ~
6361 substitution). The standard distribution will put nothing in this
6362 directory. After perl has been installed, users may install their
6363 own local architecture-dependent modules in this directory with
6364 MakeMaker Makefile.PL or equivalent. See "INSTALL" for details.
6365 "sitearchexp"
6367 From sitearch.U:
6368 This variable is the ~name expanded version of sitearch, so that
6370 you may use it directly in Makefiles or shell scripts.
6371 "sitebin"
6373 From sitebin.U:
6374 This variable holds the name of the directory in which the user
6376 wants to put add-on publicly executable files for the package in
6377 question. It is most often a local directory such as
6378 /usr/local/bin. Programs using this variable must be prepared to
6379 deal with ~name substitution. The standard distribution will put
6380 nothing in this directory. After perl has been installed, users
6381 may install their own local executables in this directory with
6382 MakeMaker Makefile.PL or equivalent. See "INSTALL" for details.
6383 "sitebinexp"
6385 From sitebin.U:
6386 This is the same as the sitebin variable, but is filename expanded
6388 at configuration time, for use in your makefiles.
6389 "sitehtml1dir"
6391 From sitehtml1dir.U:
6392 This variable contains the name of the directory in which site-
6394 specific html source pages are to be put. It is the responsibility
6395 of the Makefile.SH to get the value of this into the proper
6396 command. You must be prepared to do the ~name expansion yourself.
6397 The standard distribution will put nothing in this directory.
6398 After perl has been installed, users may install their own local
6399 html pages in this directory with MakeMaker Makefile.PL or
6400 equivalent. See "INSTALL" for details.
6401 "sitehtml1direxp"
6403 From sitehtml1dir.U:
6404 This variable is the same as the sitehtml1dir variable, but is
6406 filename expanded at configuration time, for convenient use in
6407 makefiles.
6408 "sitehtml3dir"
6410 From sitehtml3dir.U:
6411 This variable contains the name of the directory in which site-
6413 specific library html source pages are to be put. It is the
6414 responsibility of the Makefile.SH to get the value of this into the
6415 proper command. You must be prepared to do the ~name expansion
6416 yourself. The standard distribution will put nothing in this
6417 directory. After perl has been installed, users may install their
6418 own local library html pages in this directory with MakeMaker
6419 Makefile.PL or equivalent. See "INSTALL" for details.
6420 "sitehtml3direxp"
6422 From sitehtml3dir.U:
6423 This variable is the same as the sitehtml3dir variable, but is
6425 filename expanded at configuration time, for convenient use in
6426 makefiles.
6427 "sitelib"
6429 From sitelib.U:
6430 This variable contains the eventual value of the "SITELIB" symbol,
6432 which is the name of the private library for this package. It may
6433 have a ~ on the front. It is up to the makefile to eventually
6434 create this directory while performing installation (with ~
6435 substitution). The standard distribution will put nothing in this
6436 directory. After perl has been installed, users may install their
6437 own local architecture-independent modules in this directory with
6438 MakeMaker Makefile.PL or equivalent. See "INSTALL" for details.
6439 "sitelib_stem"
6441 From sitelib.U:
6442 This variable is $sitelibexp with any trailing version-specific
6444 component removed. The elements in inc_version_list
6445 (inc_version_list.U) can be tacked onto this variable to generate a
6446 list of directories to search.
6447 "sitelibexp"
6449 From sitelib.U:
6450 This variable is the ~name expanded version of sitelib, so that you
6452 may use it directly in Makefiles or shell scripts.
6453 "siteman1dir"
6455 From siteman1dir.U:
6456 This variable contains the name of the directory in which site-
6458 specific manual source pages are to be put. It is the
6459 responsibility of the Makefile.SH to get the value of this into the
6460 proper command. You must be prepared to do the ~name expansion
6461 yourself. The standard distribution will put nothing in this
6462 directory. After perl has been installed, users may install their
6463 own local man1 pages in this directory with MakeMaker Makefile.PL
6464 or equivalent. See "INSTALL" for details.
6465 "siteman1direxp"
6467 From siteman1dir.U:
6468 This variable is the same as the siteman1dir variable, but is
6470 filename expanded at configuration time, for convenient use in
6471 makefiles.
6472 "siteman3dir"
6474 From siteman3dir.U:
6475 This variable contains the name of the directory in which site-
6477 specific library man source pages are to be put. It is the
6478 responsibility of the Makefile.SH to get the value of this into the
6479 proper command. You must be prepared to do the ~name expansion
6480 yourself. The standard distribution will put nothing in this
6481 directory. After perl has been installed, users may install their
6482 own local man3 pages in this directory with MakeMaker Makefile.PL
6483 or equivalent. See "INSTALL" for details.
6484 "siteman3direxp"
6486 From siteman3dir.U:
6487 This variable is the same as the siteman3dir variable, but is
6489 filename expanded at configuration time, for convenient use in
6490 makefiles.
6491 "siteprefix"
6493 From siteprefix.U:
6494 This variable holds the full absolute path of the directory below
6496 which the user will install add-on packages. See "INSTALL" for
6497 usage and examples.
6498 "siteprefixexp"
6500 From siteprefix.U:
6501 This variable holds the full absolute path of the directory below
6503 which the user will install add-on packages. Derived from
6504 siteprefix.
6505 "sitescript"
6507 From sitescript.U:
6508 This variable holds the name of the directory in which the user
6510 wants to put add-on publicly executable files for the package in
6511 question. It is most often a local directory such as
6512 /usr/local/bin. Programs using this variable must be prepared to
6513 deal with ~name substitution. The standard distribution will put
6514 nothing in this directory. After perl has been installed, users
6515 may install their own local scripts in this directory with
6516 MakeMaker Makefile.PL or equivalent. See "INSTALL" for details.
6517 "sitescriptexp"
6519 From sitescript.U:
6520 This is the same as the sitescript variable, but is filename
6522 expanded at configuration time, for use in your makefiles.
6523 "sizesize"
6525 From sizesize.U:
6526 This variable contains the size of a sizetype in bytes.
6528 "sizetype"
6530 From sizetype.U:
6531 This variable defines sizetype to be something like size_t,
6533 unsigned long, or whatever type is used to declare length
6534 parameters for string functions.
6535 "sleep"
6537 From Loc.U:
6538 This variable is defined but not used by Configure. The value is
6540 the empty string and is not useful.
6541 "sLOCALTIME_max"
6543 From time_size.U:
6544 This variable defines the maximum value of the time_t offset that
6546 the system function localtime () accepts
6547 "sLOCALTIME_min"
6549 From time_size.U:
6550 This variable defines the minimum value of the time_t offset that
6552 the system function localtime () accepts
6553 "smail"
6555 From Loc.U:
6556 This variable is defined but not used by Configure. The value is
6558 the empty string and is not useful.
6559 "so"
6561 From so.U:
6562 This variable holds the extension used to identify shared libraries
6564 (also known as shared objects) on the system. Usually set to "so".
6565 "sockethdr"
6567 From d_socket.U:
6568 This variable has any cpp "-I" flags needed for socket support.
6570 "socketlib"
6572 From d_socket.U:
6573 This variable has the names of any libraries needed for socket
6575 support.
6576 "socksizetype"
6578 From socksizetype.U:
6579 This variable holds the type used for the size argument for various
6581 socket calls like accept. Usual values include socklen_t, size_t,
6582 and int.
6583 "sort"
6585 From Loc.U:
6586 This variable is used internally by Configure to determine the full
6588 pathname (if any) of the sort program. After Configure runs, the
6589 value is reset to a plain "sort" and is not useful.
6590 "spackage"
6592 From package.U:
6593 This variable contains the name of the package being constructed,
6595 with the first letter uppercased, i.e. suitable for starting
6596 sentences.
6597 "spitshell"
6599 From spitshell.U:
6600 This variable contains the command necessary to spit out a runnable
6602 shell on this system. It is either cat or a grep "-v" for #
6603 comments.
6604 "sPRId64"
6606 From quadfio.U:
6607 This variable, if defined, contains the string used by stdio to
6609 format 64-bit decimal numbers (format "d") for output.
6610 "sPRIeldbl"
6612 From longdblfio.U:
6613 This variable, if defined, contains the string used by stdio to
6615 format long doubles (format "e") for output.
6616 "sPRIEUldbl"
6618 From longdblfio.U:
6619 This variable, if defined, contains the string used by stdio to
6621 format long doubles (format "E") for output. The "U" in the name
6622 is to separate this from sPRIeldbl so that even case-blind systems
6623 can see the difference.
6624 "sPRIfldbl"
6626 From longdblfio.U:
6627 This variable, if defined, contains the string used by stdio to
6629 format long doubles (format "f") for output.
6630 "sPRIFUldbl"
6632 From longdblfio.U:
6633 This variable, if defined, contains the string used by stdio to
6635 format long doubles (format "F") for output. The "U" in the name
6636 is to separate this from sPRIfldbl so that even case-blind systems
6637 can see the difference.
6638 "sPRIgldbl"
6640 From longdblfio.U:
6641 This variable, if defined, contains the string used by stdio to
6643 format long doubles (format "g") for output.
6644 "sPRIGUldbl"
6646 From longdblfio.U:
6647 This variable, if defined, contains the string used by stdio to
6649 format long doubles (format "G") for output. The "U" in the name
6650 is to separate this from sPRIgldbl so that even case-blind systems
6651 can see the difference.
6652 "sPRIi64"
6654 From quadfio.U:
6655 This variable, if defined, contains the string used by stdio to
6657 format 64-bit decimal numbers (format "i") for output.
6658 "sPRIo64"
6660 From quadfio.U:
6661 This variable, if defined, contains the string used by stdio to
6663 format 64-bit octal numbers (format "o") for output.
6664 "sPRIu64"
6666 From quadfio.U:
6667 This variable, if defined, contains the string used by stdio to
6669 format 64-bit unsigned decimal numbers (format "u") for output.
6670 "sPRIx64"
6672 From quadfio.U:
6673 This variable, if defined, contains the string used by stdio to
6675 format 64-bit hexadecimal numbers (format "x") for output.
6676 "sPRIXU64"
6678 From quadfio.U:
6679 This variable, if defined, contains the string used by stdio to
6681 format 64-bit hExADECimAl numbers (format "X") for output. The "U"
6682 in the name is to separate this from sPRIx64 so that even case-
6683 blind systems can see the difference.
6684 "srand48_r_proto"
6686 From d_srand48_r.U:
6687 This variable encodes the prototype of srand48_r. It is zero if
6689 d_srand48_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
6690 of reentr.h if d_srand48_r is defined.
6691 "srandom_r_proto"
6693 From d_srandom_r.U:
6694 This variable encodes the prototype of srandom_r. It is zero if
6696 d_srandom_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
6697 of reentr.h if d_srandom_r is defined.
6698 "src"
6700 From src.U:
6701 This variable holds the (possibly relative) path of the package
6703 source. It is up to the Makefile to use this variable and set
6704 "VPATH" accordingly to find the sources remotely. Use $pkgsrc to
6705 have an absolute path.
6706 "sSCNfldbl"
6708 From longdblfio.U:
6709 This variable, if defined, contains the string used by stdio to
6711 format long doubles (format "f") for input.
6712 "ssizetype"
6714 From ssizetype.U:
6715 This variable defines ssizetype to be something like ssize_t, long
6717 or int. It is used by functions that return a count of bytes or an
6718 error condition. It must be a signed type. We will pick a type
6719 such that sizeof(SSize_t) == sizeof(Size_t).
6720 "startperl"
6722 From startperl.U:
6723 This variable contains the string to put on the front of a perl
6725 script to make sure (hopefully) that it runs with perl and not some
6726 shell. Of course, that leading line must be followed by the
6727 classical perl idiom: eval 'exec perl -S $0 ${1+$@}' if
6728 $running_under_some_shell; to guarantee perl startup should the
6729 shell execute the script. Note that this magic incatation is not
6730 understood by csh.
6731 "startsh"
6733 From startsh.U:
6734 This variable contains the string to put on the front of a shell
6736 script to make sure (hopefully) that it runs with sh and not some
6737 other shell.
6738 "static_ext"
6740 From Extensions.U:
6741 This variable holds a list of "XS" extension files we want to link
6743 statically into the package. It is used by Makefile.
6744 "stdchar"
6746 From stdchar.U:
6747 This variable conditionally defines "STDCHAR" to be the type of
6749 char used in stdio.h. It has the values "unsigned char" or "char".
6750 "stdio_base"
6752 From d_stdstdio.U:
6753 This variable defines how, given a "FILE" pointer, fp, to access
6755 the _base field (or equivalent) of stdio.h's "FILE" structure.
6756 This will be used to define the macro FILE_base(fp).
6757 "stdio_bufsiz"
6759 From d_stdstdio.U:
6760 This variable defines how, given a "FILE" pointer, fp, to determine
6762 the number of bytes store in the I/O buffer pointer to by the _base
6763 field (or equivalent) of stdio.h's "FILE" structure. This will be
6764 used to define the macro FILE_bufsiz(fp).
6765 "stdio_cnt"
6767 From d_stdstdio.U:
6768 This variable defines how, given a "FILE" pointer, fp, to access
6770 the _cnt field (or equivalent) of stdio.h's "FILE" structure. This
6771 will be used to define the macro FILE_cnt(fp).
6772 "stdio_filbuf"
6774 From d_stdstdio.U:
6775 This variable defines how, given a "FILE" pointer, fp, to tell
6777 stdio to refill its internal buffers (?). This will be used to
6778 define the macro FILE_filbuf(fp).
6779 "stdio_ptr"
6781 From d_stdstdio.U:
6782 This variable defines how, given a "FILE" pointer, fp, to access
6784 the _ptr field (or equivalent) of stdio.h's "FILE" structure. This
6785 will be used to define the macro FILE_ptr(fp).
6786 "stdio_stream_array"
6788 From stdio_streams.U:
6789 This variable tells the name of the array holding the stdio
6791 streams. Usual values include _iob, __iob, and __sF.
6792 "strerror_r_proto"
6794 From d_strerror_r.U:
6795 This variable encodes the prototype of strerror_r. It is zero if
6797 d_strerror_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
6798 macros of reentr.h if d_strerror_r is defined.
6799 "strings"
6801 From i_string.U:
6802 This variable holds the full path of the string header that will be
6804 used. Typically /usr/include/string.h or /usr/include/strings.h.
6805 "submit"
6807 From Loc.U:
6808 This variable is defined but not used by Configure. The value is
6810 the empty string and is not useful.
6811 "subversion"
6813 From patchlevel.U:
6814 The subversion level of this package. The value of subversion
6816 comes from the patchlevel.h file. In a version number such as
6817 5.6.1, this is the 1. In patchlevel.h, this is referred to as
6818 "PERL_SUBVERSION". This is unique to perl.
6819 "sysman"
6821 From sysman.U:
6822 This variable holds the place where the manual is located on this
6824 system. It is not the place where the user wants to put his manual
6825 pages. Rather it is the place where Configure may look to find
6826 manual for unix commands (section 1 of the manual usually). See
6827 mansrc.
6828 t
6830 "tail"
6831 From Loc.U:
6832 This variable is defined but not used by Configure. The value is
6834 the empty string and is not useful.
6835 "tar"
6837 From Loc.U:
6838 This variable is defined but not used by Configure. The value is
6840 the empty string and is not useful.
6841 "targetarch"
6843 From Cross.U:
6844 If cross-compiling, this variable contains the target architecture.
6846 If not, this will be empty.
6847 "tbl"
6849 From Loc.U:
6850 This variable is defined but not used by Configure. The value is
6852 the empty string and is not useful.
6853 "tee"
6855 From Loc.U:
6856 This variable is defined but not used by Configure. The value is
6858 the empty string and is not useful.
6859 "test"
6861 From Loc.U:
6862 This variable is used internally by Configure to determine the full
6864 pathname (if any) of the test program. After Configure runs, the
6865 value is reset to a plain "test" and is not useful.
6866 "timeincl"
6868 From i_time.U:
6869 This variable holds the full path of the included time header(s).
6871 "timetype"
6873 From d_time.U:
6874 This variable holds the type returned by time(). It can be long, or
6876 time_t on "BSD" sites (in which case <sys/types.h> should be
6877 included). Anyway, the type Time_t should be used.
6878 "tmpnam_r_proto"
6880 From d_tmpnam_r.U:
6881 This variable encodes the prototype of tmpnam_r. It is zero if
6883 d_tmpnam_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
6884 of reentr.h if d_tmpnam_r is defined.
6885 "to"
6887 From Cross.U:
6888 This variable contains the command used by Configure to copy to
6890 from the target host. Useful and available only during Perl build.
6891 The string ":" if not cross-compiling.
6892 "touch"
6894 From Loc.U:
6895 This variable is used internally by Configure to determine the full
6897 pathname (if any) of the touch program. After Configure runs, the
6898 value is reset to a plain "touch" and is not useful.
6899 "tr"
6901 From Loc.U:
6902 This variable is used internally by Configure to determine the full
6904 pathname (if any) of the tr program. After Configure runs, the
6905 value is reset to a plain "tr" and is not useful.
6906 "trnl"
6908 From trnl.U:
6909 This variable contains the value to be passed to the tr(1) command
6911 to transliterate a newline. Typical values are "\012" and "\n".
6912 This is needed for "EBCDIC" systems where newline is not
6913 necessarily "\012".
6914 "troff"
6916 From Loc.U:
6917 This variable is defined but not used by Configure. The value is
6919 the empty string and is not useful.
6920 "ttyname_r_proto"
6922 From d_ttyname_r.U:
6923 This variable encodes the prototype of ttyname_r. It is zero if
6925 d_ttyname_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
6926 of reentr.h if d_ttyname_r is defined.
6927 u
6929 "u16size"
6930 From perlxv.U:
6931 This variable is the size of an U16 in bytes.
6933 "u16type"
6935 From perlxv.U:
6936 This variable contains the C type used for Perl's U16.
6938 "u32size"
6940 From perlxv.U:
6941 This variable is the size of an U32 in bytes.
6943 "u32type"
6945 From perlxv.U:
6946 This variable contains the C type used for Perl's U32.
6948 "u64size"
6950 From perlxv.U:
6951 This variable is the size of an U64 in bytes.
6953 "u64type"
6955 From perlxv.U:
6956 This variable contains the C type used for Perl's U64.
6958 "u8size"
6960 From perlxv.U:
6961 This variable is the size of an U8 in bytes.
6963 "u8type"
6965 From perlxv.U:
6966 This variable contains the C type used for Perl's U8.
6968 "uidformat"
6970 From uidf.U:
6971 This variable contains the format string used for printing a Uid_t.
6973 "uidsign"
6975 From uidsign.U:
6976 This variable contains the signedness of a uidtype. 1 for
6978 unsigned, -1 for signed.
6979 "uidsize"
6981 From uidsize.U:
6982 This variable contains the size of a uidtype in bytes.
6984 "uidtype"
6986 From uidtype.U:
6987 This variable defines Uid_t to be something like uid_t, int,
6989 ushort, or whatever type is used to declare user ids in the kernel.
6990 "uname"
6992 From Loc.U:
6993 This variable is used internally by Configure to determine the full
6995 pathname (if any) of the uname program. After Configure runs, the
6996 value is reset to a plain "uname" and is not useful.
6997 "uniq"
6999 From Loc.U:
7000 This variable is used internally by Configure to determine the full
7002 pathname (if any) of the uniq program. After Configure runs, the
7003 value is reset to a plain "uniq" and is not useful.
7004 "uquadtype"
7006 From quadtype.U:
7007 This variable defines Uquad_t to be something like unsigned long,
7009 unsigned int, unsigned long long, uint64_t, or whatever type is
7010 used for 64-bit integers.
7011 "use5005threads"
7013 From usethreads.U:
7014 This variable conditionally defines the USE_5005THREADS symbol, and
7016 indicates that Perl should be built to use the 5.005-based
7017 threading implementation. Only valid up to 5.8.x.
7018 "use64bitall"
7020 From use64bits.U:
7021 This variable conditionally defines the USE_64_BIT_ALL symbol, and
7023 indicates that 64-bit integer types should be used when available.
7024 The maximal possible 64-bitness is employed: LP64 or ILP64, meaning
7025 that you will be able to use more than 2 gigabytes of memory. This
7026 mode is even more binary incompatible than USE_64_BIT_INT. You may
7027 not be able to run the resulting executable in a 32-bit "CPU" at
7028 all or you may need at least to reboot your "OS" to 64-bit mode.
7029 "use64bitint"
7031 From use64bits.U:
7032 This variable conditionally defines the USE_64_BIT_INT symbol, and
7034 indicates that 64-bit integer types should be used when available.
7035 The minimal possible 64-bitness is employed, just enough to get
7036 64-bit integers into Perl. This may mean using for example "long
7037 longs", while your memory may still be limited to 2 gigabytes.
7038 "usecrosscompile"
7040 From Cross.U:
7041 This variable conditionally defines the "USE_CROSS_COMPILE" symbol,
7043 and indicates that Perl has been cross-compiled.
7044 "usedevel"
7046 From Devel.U:
7047 This variable indicates that Perl was configured with development
7049 features enabled. This should not be done for production builds.
7050 "usedl"
7052 From dlsrc.U:
7053 This variable indicates if the system supports dynamic loading of
7055 some sort. See also dlsrc and dlobj.
7056 "usedtrace"
7058 From usedtrace.U:
7059 This variable indicates whether we are compiling with dtrace
7061 support. See also dtrace.
7062 "usefaststdio"
7064 From usefaststdio.U:
7065 This variable conditionally defines the "USE_FAST_STDIO" symbol,
7067 and indicates that Perl should be built to use "fast stdio".
7068 Defaults to define in Perls 5.8 and earlier, to undef later.
7069 "useithreads"
7071 From usethreads.U:
7072 This variable conditionally defines the "USE_ITHREADS" symbol, and
7074 indicates that Perl should be built to use the interpreter-based
7075 threading implementation.
7076 "uselargefiles"
7078 From uselfs.U:
7079 This variable conditionally defines the "USE_LARGE_FILES" symbol,
7081 and indicates that large file interfaces should be used when
7082 available.
7083 "uselongdouble"
7085 From uselongdbl.U:
7086 This variable conditionally defines the "USE_LONG_DOUBLE" symbol,
7088 and indicates that long doubles should be used when available.
7089 "usemallocwrap"
7091 From mallocsrc.U:
7092 This variable contains y if we are wrapping malloc to prevent
7094 integer overflow during size calculations.
7095 "usemorebits"
7097 From usemorebits.U:
7098 This variable conditionally defines the "USE_MORE_BITS" symbol, and
7100 indicates that explicit 64-bit interfaces and long doubles should
7101 be used when available.
7102 "usemultiplicity"
7104 From usemultiplicity.U:
7105 This variable conditionally defines the "MULTIPLICITY" symbol, and
7107 indicates that Perl should be built to use multiplicity.
7108 "usemymalloc"
7110 From mallocsrc.U:
7111 This variable contains y if the malloc that comes with this package
7113 is desired over the system's version of malloc. People often
7114 include special versions of malloc for effiency, but such versions
7115 are often less portable. See also mallocsrc and mallocobj. If
7116 this is "y", then -lmalloc is removed from $libs.
7117 "usenm"
7119 From usenm.U:
7120 This variable contains "true" or "false" depending whether the nm
7122 extraction is wanted or not.
7123 "useopcode"
7125 From Extensions.U:
7126 This variable holds either "true" or "false" to indicate whether
7128 the Opcode extension should be used. The sole use for this
7129 currently is to allow an easy mechanism for users to skip the
7130 Opcode extension from the Configure command line.
7131 "useperlio"
7133 From useperlio.U:
7134 This variable conditionally defines the "USE_PERLIO" symbol, and
7136 indicates that the PerlIO abstraction should be used throughout.
7137 "useposix"
7139 From Extensions.U:
7140 This variable holds either "true" or "false" to indicate whether
7142 the "POSIX" extension should be used. The sole use for this
7143 currently is to allow an easy mechanism for hints files to indicate
7144 that "POSIX" will not compile on a particular system.
7145 "usereentrant"
7147 From usethreads.U:
7148 This variable conditionally defines the "USE_REENTRANT_API" symbol,
7150 which indicates that the thread code may try to use the various _r
7151 versions of library functions. This is only potentially meaningful
7152 if usethreads is set and is very experimental, it is not even
7153 prompted for.
7154 "userelocatableinc"
7156 From bin.U:
7157 This variable is set to true to indicate that perl should relocate
7159 @"INC" entries at runtime based on the path to the perl binary.
7160 Any @"INC" paths starting .../ are relocated relative to the
7161 directory containing the perl binary, and a logical cleanup of the
7162 path is then made around the join point (removing dir/../ pairs)
7163 "usesfio"
7165 From d_sfio.U:
7166 This variable is set to true when the user agrees to use sfio. It
7168 is set to false when sfio is not available or when the user
7169 explicitely requests not to use sfio. It is here primarily so that
7170 command-line settings can override the auto-detection of d_sfio
7171 without running into a "WHOA THERE".
7172 "useshrplib"
7174 From libperl.U:
7175 This variable is set to "true" if the user wishes to build a shared
7177 libperl, and "false" otherwise.
7178 "usesitecustomize"
7180 From d_sitecustomize.U:
7181 This variable is set to true when the user requires a mechanism
7183 that allows the sysadmin to add entries to @"INC" at runtime. This
7184 variable being set, makes perl run $sitelib/sitecustomize.pl at
7185 startup.
7186 "usesocks"
7188 From usesocks.U:
7189 This variable conditionally defines the "USE_SOCKS" symbol, and
7191 indicates that Perl should be built to use "SOCKS".
7192 "usethreads"
7194 From usethreads.U:
7195 This variable conditionally defines the "USE_THREADS" symbol, and
7197 indicates that Perl should be built to use threads.
7198 "usevendorprefix"
7200 From vendorprefix.U:
7201 This variable tells whether the vendorprefix and consequently other
7203 vendor* paths are in use.
7204 "usevfork"
7206 From d_vfork.U:
7207 This variable is set to true when the user accepts to use vfork.
7209 It is set to false when no vfork is available or when the user
7210 explicitely requests not to use vfork.
7211 "usrinc"
7213 From usrinc.U:
7214 This variable holds the path of the include files, which is usually
7216 /usr/include. It is mainly used by other Configure units.
7217 "uuname"
7219 From Loc.U:
7220 This variable is defined but not used by Configure. The value is
7222 the empty string and is not useful.
7223 "uvoformat"
7225 From perlxvf.U:
7226 This variable contains the format string used for printing a Perl
7228 "UV" as an unsigned octal integer.
7229 "uvsize"
7231 From perlxv.U:
7232 This variable is the size of a "UV" in bytes.
7234 "uvtype"
7236 From perlxv.U:
7237 This variable contains the C type used for Perl's "UV".
7239 "uvuformat"
7241 From perlxvf.U:
7242 This variable contains the format string used for printing a Perl
7244 "UV" as an unsigned decimal integer.
7245 "uvxformat"
7247 From perlxvf.U:
7248 This variable contains the format string used for printing a Perl
7250 "UV" as an unsigned hexadecimal integer in lowercase abcdef.
7251 "uvXUformat"
7253 From perlxvf.U:
7254 This variable contains the format string used for printing a Perl
7256 "UV" as an unsigned hexadecimal integer in uppercase "ABCDEF".
7257 v
7259 "vendorarch"
7260 From vendorarch.U:
7261 This variable contains the value of the "PERL_VENDORARCH" symbol.
7263 It may have a ~ on the front. The standard distribution will put
7264 nothing in this directory. Vendors who distribute perl may wish to
7265 place their own architecture-dependent modules and extensions in
7266 this directory with MakeMaker Makefile.PL "INSTALLDIRS"=vendor or
7267 equivalent. See "INSTALL" for details.
7268 "vendorarchexp"
7270 From vendorarch.U:
7271 This variable is the ~name expanded version of vendorarch, so that
7273 you may use it directly in Makefiles or shell scripts.
7274 "vendorbin"
7276 From vendorbin.U:
7277 This variable contains the eventual value of the "VENDORBIN"
7279 symbol. It may have a ~ on the front. The standard distribution
7280 will put nothing in this directory. Vendors who distribute perl
7281 may wish to place additional binaries in this directory with
7282 MakeMaker Makefile.PL "INSTALLDIRS"=vendor or equivalent. See
7283 "INSTALL" for details.
7284 "vendorbinexp"
7286 From vendorbin.U:
7287 This variable is the ~name expanded version of vendorbin, so that
7289 you may use it directly in Makefiles or shell scripts.
7290 "vendorhtml1dir"
7292 From vendorhtml1dir.U:
7293 This variable contains the name of the directory for html pages.
7295 It may have a ~ on the front. The standard distribution will put
7296 nothing in this directory. Vendors who distribute perl may wish to
7297 place their own html pages in this directory with MakeMaker
7298 Makefile.PL "INSTALLDIRS"=vendor or equivalent. See "INSTALL" for
7299 details.
7300 "vendorhtml1direxp"
7302 From vendorhtml1dir.U:
7303 This variable is the ~name expanded version of vendorhtml1dir, so
7305 that you may use it directly in Makefiles or shell scripts.
7306 "vendorhtml3dir"
7308 From vendorhtml3dir.U:
7309 This variable contains the name of the directory for html library
7311 pages. It may have a ~ on the front. The standard distribution
7312 will put nothing in this directory. Vendors who distribute perl
7313 may wish to place their own html pages for modules and extensions
7314 in this directory with MakeMaker Makefile.PL "INSTALLDIRS"=vendor
7315 or equivalent. See "INSTALL" for details.
7316 "vendorhtml3direxp"
7318 From vendorhtml3dir.U:
7319 This variable is the ~name expanded version of vendorhtml3dir, so
7321 that you may use it directly in Makefiles or shell scripts.
7322 "vendorlib"
7324 From vendorlib.U:
7325 This variable contains the eventual value of the "VENDORLIB"
7327 symbol, which is the name of the private library for this package.
7328 The standard distribution will put nothing in this directory.
7329 Vendors who distribute perl may wish to place their own modules in
7330 this directory with MakeMaker Makefile.PL "INSTALLDIRS"=vendor or
7331 equivalent. See "INSTALL" for details.
7332 "vendorlib_stem"
7334 From vendorlib.U:
7335 This variable is $vendorlibexp with any trailing version-specific
7337 component removed. The elements in inc_version_list
7338 (inc_version_list.U) can be tacked onto this variable to generate a
7339 list of directories to search.
7340 "vendorlibexp"
7342 From vendorlib.U:
7343 This variable is the ~name expanded version of vendorlib, so that
7345 you may use it directly in Makefiles or shell scripts.
7346 "vendorman1dir"
7348 From vendorman1dir.U:
7349 This variable contains the name of the directory for man1 pages.
7351 It may have a ~ on the front. The standard distribution will put
7352 nothing in this directory. Vendors who distribute perl may wish to
7353 place their own man1 pages in this directory with MakeMaker
7354 Makefile.PL "INSTALLDIRS"=vendor or equivalent. See "INSTALL" for
7355 details.
7356 "vendorman1direxp"
7358 From vendorman1dir.U:
7359 This variable is the ~name expanded version of vendorman1dir, so
7361 that you may use it directly in Makefiles or shell scripts.
7362 "vendorman3dir"
7364 From vendorman3dir.U:
7365 This variable contains the name of the directory for man3 pages.
7367 It may have a ~ on the front. The standard distribution will put
7368 nothing in this directory. Vendors who distribute perl may wish to
7369 place their own man3 pages in this directory with MakeMaker
7370 Makefile.PL "INSTALLDIRS"=vendor or equivalent. See "INSTALL" for
7371 details.
7372 "vendorman3direxp"
7374 From vendorman3dir.U:
7375 This variable is the ~name expanded version of vendorman3dir, so
7377 that you may use it directly in Makefiles or shell scripts.
7378 "vendorprefix"
7380 From vendorprefix.U:
7381 This variable holds the full absolute path of the directory below
7383 which the vendor will install add-on packages. See "INSTALL" for
7384 usage and examples.
7385 "vendorprefixexp"
7387 From vendorprefix.U:
7388 This variable holds the full absolute path of the directory below
7390 which the vendor will install add-on packages. Derived from
7391 vendorprefix.
7392 "vendorscript"
7394 From vendorscript.U:
7395 This variable contains the eventual value of the "VENDORSCRIPT"
7397 symbol. It may have a ~ on the front. The standard distribution
7398 will put nothing in this directory. Vendors who distribute perl
7399 may wish to place additional executable scripts in this directory
7400 with MakeMaker Makefile.PL "INSTALLDIRS"=vendor or equivalent. See
7401 "INSTALL" for details.
7402 "vendorscriptexp"
7404 From vendorscript.U:
7405 This variable is the ~name expanded version of vendorscript, so
7407 that you may use it directly in Makefiles or shell scripts.
7408 "version"
7410 From patchlevel.U:
7411 The full version number of this package, such as 5.6.1 (or 5_6_1).
7413 This combines revision, patchlevel, and subversion to get the full
7414 version number, including any possible subversions. This is
7415 suitable for use as a directory name, and hence is filesystem
7416 dependent.
7417 "version_patchlevel_string"
7419 From patchlevel.U:
7420 This is a string combining version, subversion and perl_patchlevel
7422 (if perl_patchlevel is non-zero). It is typically something like
7423 'version 7 subversion 1' or 'version 7 subversion 1 patchlevel
7424 11224' It is computed here to avoid duplication of code in
7425 myconfig.SH and lib/Config.pm.
7426 "versiononly"
7428 From versiononly.U:
7429 If set, this symbol indicates that only the version-specific
7431 components of a perl installation should be installed. This may be
7432 useful for making a test installation of a new version without
7433 disturbing the existing installation. Setting versiononly is
7434 equivalent to setting installperl's -v option. In particular, the
7435 non-versioned scripts and programs such as a2p, c2ph, h2xs, pod2*,
7436 and perldoc are not installed (see "INSTALL" for a more complete
7437 list). Nor are the man pages installed. Usually, this is undef.
7438 "vi"
7440 From Loc.U:
7441 This variable is defined but not used by Configure. The value is
7443 the empty string and is not useful.
7444 "voidflags"
7446 From voidflags.U:
7447 This variable contains the eventual value of the "VOIDFLAGS"
7449 symbol, which indicates how much support of the void type is given
7450 by this compiler. See "VOIDFLAGS" for more info.
7451 x
7453 "xlibpth"
7454 From libpth.U:
7455 This variable holds extra path (space-separated) used to find
7457 libraries on this platform, for example "CPU"-specific libraries
7458 (on multi-"CPU" platforms) may be listed here.
7459 y
7461 "yacc"
7462 From yacc.U:
7463 This variable holds the name of the compiler compiler we want to
7465 use in the Makefile. It can be yacc, byacc, or bison -y.
7466 "yaccflags"
7468 From yacc.U:
7469 This variable contains any additional yacc flags desired by the
7471 user. It is up to the Makefile to use this.
7472 z
7474 "zcat"
7475 From Loc.U:
7476 This variable is defined but not used by Configure. The value is
7478 the empty string and is not useful.
7479 "zip"
7481 From Loc.U:
7482 This variable is used internally by Configure to determine the full
7484 pathname (if any) of the zip program. After Configure runs, the
7485 value is reset to a plain "zip" and is not useful.
7486
7488 Information on the git commit from which the current perl binary was
7489 compiled can be found in the variable $Config::Git_Data. The variable
7490 is a structured string that looks something like this:
7491 git_commit_id='ea0c2dbd5f5ac6845ecc7ec6696415bf8e27bd52'
7493 git_describe='GitLive-blead-1076-gea0c2db'
7494 git_branch='smartmatch'
7495 git_uncommitted_changes=''
7496 git_commit_id_title='Commit id:'
7497 git_commit_date='2009-05-09 17:47:31 +0200'
7498 Its format is not guaranteed not to change over time.
7500
7502 This module contains a good example of how to use tie to implement a
7503 cache and an example of how to make a tied variable readonly to those
7504 outside of it.
7505perl v5.10.1 2017-03-22 Config(3pm)