1Config(3pm) Perl Programmers Reference Guide Config(3pm)
2
6 Config - access Perl configuration information
7
9 use Config;
10 if ($Config{usethreads}) {
11 print "has thread support\n"
12 }
13 use Config qw(myconfig config_sh config_vars config_re);
15 print myconfig();
17 print config_sh();
19 print config_re();
21 config_vars(qw(osname archname));
23
25 The Config module contains all the information that was available to
26 the "Configure" program at Perl build time (over 900 values).
27 Shell variables from the config.sh file (written by Configure) are
29 stored in the readonly-variable %Config, indexed by their names.
30 Values stored in config.sh as 'undef' are returned as undefined values.
32 The perl "exists" function can be used to check if a named variable
33 exists.
34 For a description of the variables, please have a look at the Glossary
36 file, as written in the Porting folder, or use the url:
37 http://perl5.git.perl.org/perl.git/blob/HEAD:/Porting/Glossary
38 myconfig()
40 Returns a textual summary of the major perl configuration values.
41 See also "-V" in "Command Switches" in perlrun.
42 config_sh()
44 Returns the entire perl configuration information in the form of
45 the original config.sh shell variable assignment script.
46 config_re($regex)
48 Like config_sh() but returns, as a list, only the config entries
49 who's names match the $regex.
50 config_vars(@names)
52 Prints to STDOUT the values of the named configuration variable.
53 Each is printed on a separate line in the form:
54 name='value';
56 Names which are unknown are output as "name='UNKNOWN';". See also
58 "-V:name" in "Command Switches" in perlrun.
59 bincompat_options()
61 Returns a list of C pre-processor options used when compiling this
62 perl binary, which affect its binary compatibility with extensions.
63 "bincompat_options()" and "non_bincompat_options()" are shown
64 together in the output of "perl -V" as Compile-time options.
65 non_bincompat_options()
67 Returns a list of C pre-processor options used when compiling this
68 perl binary, which do not affect binary compatibility with
69 extensions.
70 compile_date()
72 Returns the compile date (as a string), equivalent to what is shown
73 by "perl -V"
74 local_patches()
76 Returns a list of the names of locally applied patches, equivalent
77 to what is shown by "perl -V".
78 header_files()
80 Returns a list of the header files that should be used as
81 dependencies for XS code, for this version of Perl on this
82 platform.
83
85 Here's a more sophisticated example of using %Config:
86 use Config;
88 use strict;
89 my %sig_num;
91 my @sig_name;
92 unless($Config{sig_name} && $Config{sig_num}) {
93 die "No sigs?";
94 } else {
95 my @names = split ' ', $Config{sig_name};
96 @sig_num{@names} = split ' ', $Config{sig_num};
97 foreach (@names) {
98 $sig_name[$sig_num{$_}] ||= $_;
99 }
100 }
101 print "signal #17 = $sig_name[17]\n";
103 if ($sig_num{ALRM}) {
104 print "SIGALRM is $sig_num{ALRM}\n";
105 }
106
108 Because this information is not stored within the perl executable
109 itself it is possible (but unlikely) that the information does not
110 relate to the actual perl binary which is being used to access it.
111 The Config module is installed into the architecture and version
113 specific library directory ($Config{installarchlib}) and it checks the
114 perl version number when loaded.
115 The values stored in config.sh may be either single-quoted or double-
117 quoted. Double-quoted strings are handy for those cases where you need
118 to include escape sequences in the strings. To avoid runtime variable
119 interpolation, any "$" and "@" characters are replaced by "\$" and
120 "\@", respectively. This isn't foolproof, of course, so don't embed
121 "\$" or "\@" in double-quoted strings unless you're willing to deal
122 with the consequences. (The slashes will end up escaped and the "$" or
123 "@" will trigger variable interpolation)
124
126 Most "Config" variables are determined by the "Configure" script on
127 platforms supported by it (which is most UNIX platforms). Some
128 platforms have custom-made "Config" variables, and may thus not have
129 some of the variables described below, or may have extraneous variables
130 specific to that particular port. See the port specific documentation
131 in such cases.
132 _
134 "_a"
135 From Unix.U:
136 This variable defines the extension used for ordinary library
138 files. For unix, it is .a. The . is included. Other possible
139 values include .lib.
140 "_exe"
142 From Unix.U:
143 This variable defines the extension used for executable files.
145 "DJGPP", Cygwin and OS/2 use .exe. Stratus "VOS" uses .pm. On
146 operating systems which do not require a specific extension for
147 executable files, this variable is empty.
148 "_o"
150 From Unix.U:
151 This variable defines the extension used for object files. For
153 unix, it is .o. The . is included. Other possible values include
154 .obj.
155 a
157 "afs"
158 From afs.U:
159 This variable is set to "true" if "AFS" (Andrew File System) is
161 used on the system, "false" otherwise. It is possible to override
162 this with a hint value or command line option, but you'd better
163 know what you are doing.
164 "afsroot"
166 From afs.U:
167 This variable is by default set to /afs. In the unlikely case this
169 is not the correct root, it is possible to override this with a
170 hint value or command line option. This will be used in subsequent
171 tests for AFSness in the configure and test process.
172 "alignbytes"
174 From alignbytes.U:
175 This variable holds the number of bytes required to align a
177 double-- or a long double when applicable. Usual values are 2, 4
178 and 8. The default is eight, for safety.
179 "ansi2knr"
181 From ansi2knr.U:
182 This variable is set if the user needs to run ansi2knr. Currently,
184 this is not supported, so we just abort.
185 "aphostname"
187 From d_gethname.U:
188 This variable contains the command which can be used to compute the
190 host name. The command is fully qualified by its absolute path, to
191 make it safe when used by a process with super-user privileges.
192 "api_revision"
194 From patchlevel.U:
195 The three variables, api_revision, api_version, and api_subversion,
197 specify the version of the oldest perl binary compatible with the
198 present perl. In a full version string such as 5.6.1, api_revision
199 is the 5. Prior to 5.5.640, the format was a floating point
200 number, like 5.00563.
201 perl.c:incpush() and lib/lib.pm will automatically search in
203 $sitelib/.. for older directories back to the limit specified by
204 these api_ variables. This is only useful if you have a perl
205 library directory tree structured like the default one. See
206 "INSTALL" for how this works. The versioned site_perl directory
207 was introduced in 5.005, so that is the lowest possible value. The
208 version list appropriate for the current system is determined in
209 inc_version_list.U.
210 "XXX" To do: Since compatibility can depend on compile time
212 options (such as bincompat, longlong, etc.) it should (perhaps) be
213 set by Configure, but currently it isn't. Currently, we read a
214 hard-wired value from patchlevel.h. Perhaps what we ought to do is
215 take the hard-wired value from patchlevel.h but then modify it if
216 the current Configure options warrant. patchlevel.h then would use
217 an #ifdef guard.
218 "api_subversion"
220 From patchlevel.U:
221 The three variables, api_revision, api_version, and api_subversion,
223 specify the version of the oldest perl binary compatible with the
224 present perl. In a full version string such as 5.6.1,
225 api_subversion is the 1. See api_revision for full details.
226 "api_version"
228 From patchlevel.U:
229 The three variables, api_revision, api_version, and api_subversion,
231 specify the version of the oldest perl binary compatible with the
232 present perl. In a full version string such as 5.6.1, api_version
233 is the 6. See api_revision for full details. As a special case,
234 5.5.0 is rendered in the old-style as 5.005. (In the 5.005_0x
235 maintenance series, this was the only versioned directory in
236 $sitelib.)
237 "api_versionstring"
239 From patchlevel.U:
240 This variable combines api_revision, api_version, and
242 api_subversion in a format such as 5.6.1 (or 5_6_1) suitable for
243 use as a directory name. This is filesystem dependent.
244 "ar"
246 From Loc.U:
247 This variable is used internally by Configure to determine the full
249 pathname (if any) of the ar program. After Configure runs, the
250 value is reset to a plain "ar" and is not useful.
251 "archlib"
253 From archlib.U:
254 This variable holds the name of the directory in which the user
256 wants to put architecture-dependent public library files for
257 $package. It is most often a local directory such as
258 /usr/local/lib. Programs using this variable must be prepared to
259 deal with filename expansion.
260 "archlibexp"
262 From archlib.U:
263 This variable is the same as the archlib variable, but is filename
265 expanded at configuration time, for convenient use.
266 "archname"
268 From archname.U:
269 This variable is a short name to characterize the current
271 architecture. It is used mainly to construct the default archlib.
272 "archname64"
274 From use64bits.U:
275 This variable is used for the 64-bitness part of $archname.
277 "archobjs"
279 From Unix.U:
280 This variable defines any additional objects that must be linked in
282 with the program on this architecture. On unix, it is usually
283 empty. It is typically used to include emulations of unix calls or
284 other facilities. For perl on OS/2, for example, this would
285 include os2/os2.obj.
286 "asctime_r_proto"
288 From d_asctime_r.U:
289 This variable encodes the prototype of asctime_r. It is zero if
291 d_asctime_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
292 of reentr.h if d_asctime_r is defined.
293 "awk"
295 From Loc.U:
296 This variable is used internally by Configure to determine the full
298 pathname (if any) of the awk program. After Configure runs, the
299 value is reset to a plain "awk" and is not useful.
300 b
302 "baserev"
303 From baserev.U:
304 The base revision level of this package, from the .package file.
306 "bash"
308 From Loc.U:
309 This variable is defined but not used by Configure. The value is
311 the empty string and is not useful.
312 "bin"
314 From bin.U:
315 This variable holds the name of the directory in which the user
317 wants to put publicly executable images for the package in
318 question. It is most often a local directory such as
319 /usr/local/bin. Programs using this variable must be prepared to
320 deal with ~name substitution.
321 "bin_ELF"
323 From dlsrc.U:
324 This variable saves the result from configure if generated binaries
326 are in "ELF" format. Only set to defined when the test has actually
327 been performed, and the result was positive.
328 "binexp"
330 From bin.U:
331 This is the same as the bin variable, but is filename expanded at
333 configuration time, for use in your makefiles.
334 "bison"
336 From Loc.U:
337 This variable is used internally by Configure to determine the full
339 pathname (if any) of the bison program. After Configure runs, the
340 value is reset to a plain "bison" and is not useful.
341 "byacc"
343 From Loc.U:
344 This variable is used internally by Configure to determine the full
346 pathname (if any) of the byacc program. After Configure runs, the
347 value is reset to a plain "byacc" and is not useful.
348 "byteorder"
350 From byteorder.U:
351 This variable holds the byte order in a "UV". In the following,
353 larger digits indicate more significance. The variable byteorder
354 is either 4321 on a big-endian machine, or 1234 on a little-endian,
355 or 87654321 on a Cray ... or 3412 with weird order !
356 c
358 "c" From n.U:
359 This variable contains the \c string if that is what causes the
361 echo command to suppress newline. Otherwise it is null. Correct
362 usage is $echo $n "prompt for a question: $c".
363 "castflags"
365 From d_castneg.U:
366 This variable contains a flag that precise difficulties the
368 compiler has casting odd floating values to unsigned long: 0 = ok 1
369 = couldn't cast < 0 2 = couldn't cast >= 0x80000000 4 = couldn't
370 cast in argument expression list
371 "cat"
373 From Loc.U:
374 This variable is used internally by Configure to determine the full
376 pathname (if any) of the cat program. After Configure runs, the
377 value is reset to a plain "cat" and is not useful.
378 "cc"
380 From cc.U:
381 This variable holds the name of a command to execute a C compiler
383 which can resolve multiple global references that happen to have
384 the same name. Usual values are "cc" and "gcc". Fervent "ANSI"
385 compilers may be called "c89". "AIX" has xlc.
386 "cccdlflags"
388 From dlsrc.U:
389 This variable contains any special flags that might need to be
391 passed with "cc -c" to compile modules to be used to create a
392 shared library that will be used for dynamic loading. For hpux,
393 this should be +z. It is up to the makefile to use it.
394 "ccdlflags"
396 From dlsrc.U:
397 This variable contains any special flags that might need to be
399 passed to cc to link with a shared library for dynamic loading. It
400 is up to the makefile to use it. For sunos 4.1, it should be
401 empty.
402 "ccflags"
404 From ccflags.U:
405 This variable contains any additional C compiler flags desired by
407 the user. It is up to the Makefile to use this.
408 "ccflags_uselargefiles"
410 From uselfs.U:
411 This variable contains the compiler flags needed by large file
413 builds and added to ccflags by hints files.
414 "ccname"
416 From Checkcc.U:
417 This can set either by hints files or by Configure. If using gcc,
419 this is gcc, and if not, usually equal to cc, unimpressive, no?
420 Some platforms, however, make good use of this by storing the
421 flavor of the C compiler being used here. For example if using the
422 Sun WorkShop suite, ccname will be "workshop".
423 "ccsymbols"
425 From Cppsym.U:
426 The variable contains the symbols defined by the C compiler alone.
428 The symbols defined by cpp or by cc when it calls cpp are not in
429 this list, see cppsymbols and cppccsymbols. The list is a space-
430 separated list of symbol=value tokens.
431 "ccversion"
433 From Checkcc.U:
434 This can set either by hints files or by Configure. If using a
436 (non-gcc) vendor cc, this variable may contain a version for the
437 compiler.
438 "cf_by"
440 From cf_who.U:
441 Login name of the person who ran the Configure script and answered
443 the questions. This is used to tag both config.sh and config_h.SH.
444 "cf_email"
446 From cf_email.U:
447 Electronic mail address of the person who ran Configure. This can
449 be used by units that require the user's e-mail, like MailList.U.
450 "cf_time"
452 From cf_who.U:
453 Holds the output of the "date" command when the configuration file
455 was produced. This is used to tag both config.sh and config_h.SH.
456 "charbits"
458 From charsize.U:
459 This variable contains the value of the "CHARBITS" symbol, which
461 indicates to the C program how many bits there are in a character.
462 "charsize"
464 From charsize.U:
465 This variable contains the value of the "CHARSIZE" symbol, which
467 indicates to the C program how many bytes there are in a character.
468 "chgrp"
470 From Loc.U:
471 This variable is defined but not used by Configure. The value is
473 the empty string and is not useful.
474 "chmod"
476 From Loc.U:
477 This variable is used internally by Configure to determine the full
479 pathname (if any) of the chmod program. After Configure runs, the
480 value is reset to a plain "chmod" and is not useful.
481 "chown"
483 From Loc.U:
484 This variable is defined but not used by Configure. The value is
486 the empty string and is not useful.
487 "clocktype"
489 From d_times.U:
490 This variable holds the type returned by times(). It can be long,
492 or clock_t on "BSD" sites (in which case <sys/types.h> should be
493 included).
494 "comm"
496 From Loc.U:
497 This variable is used internally by Configure to determine the full
499 pathname (if any) of the comm program. After Configure runs, the
500 value is reset to a plain "comm" and is not useful.
501 "compress"
503 From Loc.U:
504 This variable is defined but not used by Configure. The value is
506 the empty string and is not useful.
507 "config_arg0"
509 From Options.U:
510 This variable contains the string used to invoke the Configure
512 command, as reported by the shell in the $0 variable.
513 "config_argc"
515 From Options.U:
516 This variable contains the number of command-line arguments passed
518 to Configure, as reported by the shell in the $# variable. The
519 individual arguments are stored as variables config_arg1,
520 config_arg2, etc.
521 "config_args"
523 From Options.U:
524 This variable contains a single string giving the command-line
526 arguments passed to Configure. Spaces within arguments, quotes, and
527 escaped characters are not correctly preserved. To reconstruct the
528 command line, you must assemble the individual command line pieces,
529 given in config_arg[0-9]*.
530 "contains"
532 From contains.U:
533 This variable holds the command to do a grep with a proper return
535 status. On most sane systems it is simply "grep". On insane
536 systems it is a grep followed by a cat followed by a test. This
537 variable is primarily for the use of other Configure units.
538 "cp"
540 From Loc.U:
541 This variable is used internally by Configure to determine the full
543 pathname (if any) of the cp program. After Configure runs, the
544 value is reset to a plain "cp" and is not useful.
545 "cpio"
547 From Loc.U:
548 This variable is defined but not used by Configure. The value is
550 the empty string and is not useful.
551 "cpp"
553 From Loc.U:
554 This variable is used internally by Configure to determine the full
556 pathname (if any) of the cpp program. After Configure runs, the
557 value is reset to a plain "cpp" and is not useful.
558 "cpp_stuff"
560 From cpp_stuff.U:
561 This variable contains an identification of the concatenation
563 mechanism used by the C preprocessor.
564 "cppccsymbols"
566 From Cppsym.U:
567 The variable contains the symbols defined by the C compiler when it
569 calls cpp. The symbols defined by the cc alone or cpp alone are
570 not in this list, see ccsymbols and cppsymbols. The list is a
571 space-separated list of symbol=value tokens.
572 "cppflags"
574 From ccflags.U:
575 This variable holds the flags that will be passed to the C pre-
577 processor. It is up to the Makefile to use it.
578 "cpplast"
580 From cppstdin.U:
581 This variable has the same functionality as cppminus, only it
583 applies to cpprun and not cppstdin.
584 "cppminus"
586 From cppstdin.U:
587 This variable contains the second part of the string which will
589 invoke the C preprocessor on the standard input and produce to
590 standard output. This variable will have the value "-" if cppstdin
591 needs a minus to specify standard input, otherwise the value is "".
592 "cpprun"
594 From cppstdin.U:
595 This variable contains the command which will invoke a C
597 preprocessor on standard input and put the output to stdout. It is
598 guaranteed not to be a wrapper and may be a null string if no
599 preprocessor can be made directly available. This preprocessor
600 might be different from the one used by the C compiler. Don't
601 forget to append cpplast after the preprocessor options.
602 "cppstdin"
604 From cppstdin.U:
605 This variable contains the command which will invoke the C
607 preprocessor on standard input and put the output to stdout. It is
608 primarily used by other Configure units that ask about preprocessor
609 symbols.
610 "cppsymbols"
612 From Cppsym.U:
613 The variable contains the symbols defined by the C preprocessor
615 alone. The symbols defined by cc or by cc when it calls cpp are
616 not in this list, see ccsymbols and cppccsymbols. The list is a
617 space-separated list of symbol=value tokens.
618 "crypt_r_proto"
620 From d_crypt_r.U:
621 This variable encodes the prototype of crypt_r. It is zero if
623 d_crypt_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
624 of reentr.h if d_crypt_r is defined.
625 "cryptlib"
627 From d_crypt.U:
628 This variable holds -lcrypt or the path to a libcrypt.a archive if
630 the crypt() function is not defined in the standard C library. It
631 is up to the Makefile to use this.
632 "csh"
634 From Loc.U:
635 This variable is used internally by Configure to determine the full
637 pathname (if any) of the csh program. After Configure runs, the
638 value is reset to a plain "csh" and is not useful.
639 "ctermid_r_proto"
641 From d_ctermid_r.U:
642 This variable encodes the prototype of ctermid_r. It is zero if
644 d_ctermid_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
645 of reentr.h if d_ctermid_r is defined.
646 "ctime_r_proto"
648 From d_ctime_r.U:
649 This variable encodes the prototype of ctime_r. It is zero if
651 d_ctime_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
652 of reentr.h if d_ctime_r is defined.
653 d
655 "d__fwalk"
656 From d__fwalk.U:
657 This variable conditionally defines "HAS__FWALK" if _fwalk() is
659 available to apply a function to all the file handles.
660 "d_access"
662 From d_access.U:
663 This variable conditionally defines "HAS_ACCESS" if the access()
665 system call is available to check for access permissions using real
666 IDs.
667 "d_accessx"
669 From d_accessx.U:
670 This variable conditionally defines the "HAS_ACCESSX" symbol, which
672 indicates to the C program that the accessx() routine is available.
673 "d_acosh"
675 From d_acosh.U:
676 This variable conditionally defines the "HAS_ACOSH" symbol, which
678 indicates to the C program that the acosh() routine is available.
679 "d_aintl"
681 From d_aintl.U:
682 This variable conditionally defines the "HAS_AINTL" symbol, which
684 indicates to the C program that the aintl() routine is available.
685 If copysignl is also present we can emulate modfl.
686 "d_alarm"
688 From d_alarm.U:
689 This variable conditionally defines the "HAS_ALARM" symbol, which
691 indicates to the C program that the alarm() routine is available.
692 "d_archlib"
694 From archlib.U:
695 This variable conditionally defines "ARCHLIB" to hold the pathname
697 of architecture-dependent library files for $package. If $archlib
698 is the same as $privlib, then this is set to undef.
699 "d_asctime64"
701 From d_timefuncs64.U:
702 This variable conditionally defines the HAS_ASCTIME64 symbol, which
704 indicates to the C program that the asctime64 () routine is
705 available.
706 "d_asctime_r"
708 From d_asctime_r.U:
709 This variable conditionally defines the "HAS_ASCTIME_R" symbol,
711 which indicates to the C program that the asctime_r() routine is
712 available.
713 "d_asinh"
715 From d_asinh.U:
716 This variable conditionally defines the "HAS_ASINH" symbol, which
718 indicates to the C program that the asinh() routine is available.
719 "d_atanh"
721 From d_atanh.U:
722 This variable conditionally defines the "HAS_ATANH" symbol, which
724 indicates to the C program that the atanh() routine is available.
725 "d_atolf"
727 From atolf.U:
728 This variable conditionally defines the "HAS_ATOLF" symbol, which
730 indicates to the C program that the atolf() routine is available.
731 "d_atoll"
733 From atoll.U:
734 This variable conditionally defines the "HAS_ATOLL" symbol, which
736 indicates to the C program that the atoll() routine is available.
737 "d_attribute_deprecated"
739 From d_attribut.U:
740 This variable conditionally defines "HASATTRIBUTE_DEPRECATED",
742 which indicates that "GCC" can handle the attribute for marking
743 deprecated APIs
744 "d_attribute_format"
746 From d_attribut.U:
747 This variable conditionally defines "HASATTRIBUTE_FORMAT", which
749 indicates the C compiler can check for printf-like formats.
750 "d_attribute_malloc"
752 From d_attribut.U:
753 This variable conditionally defines "HASATTRIBUTE_MALLOC", which
755 indicates the C compiler can understand functions as having malloc-
756 like semantics.
757 "d_attribute_nonnull"
759 From d_attribut.U:
760 This variable conditionally defines "HASATTRIBUTE_NONNULL", which
762 indicates that the C compiler can know that certain arguments must
763 not be "NULL", and will check accordingly at compile time.
764 "d_attribute_noreturn"
766 From d_attribut.U:
767 This variable conditionally defines "HASATTRIBUTE_NORETURN", which
769 indicates that the C compiler can know that certain functions are
770 guaranteed never to return.
771 "d_attribute_pure"
773 From d_attribut.U:
774 This variable conditionally defines "HASATTRIBUTE_PURE", which
776 indicates that the C compiler can know that certain functions are
777 "pure" functions, meaning that they have no side effects, and only
778 rely on function input and/or global data for their results.
779 "d_attribute_unused"
781 From d_attribut.U:
782 This variable conditionally defines "HASATTRIBUTE_UNUSED", which
784 indicates that the C compiler can know that certain variables and
785 arguments may not always be used, and to not throw warnings if they
786 don't get used.
787 "d_attribute_warn_unused_result"
789 From d_attribut.U:
790 This variable conditionally defines
792 "HASATTRIBUTE_WARN_UNUSED_RESULT", which indicates that the C
793 compiler can know that certain functions have a return values that
794 must not be ignored, such as malloc() or open().
795 "d_backtrace"
797 From d_backtrace.U:
798 This variable conditionally defines the "HAS_BACKTRACE" symbol,
800 which indicates to the C program that the backtrace() routine is
801 available to get a stack trace.
802 "d_bcmp"
804 From d_bcmp.U:
805 This variable conditionally defines the "HAS_BCMP" symbol if the
807 bcmp() routine is available to compare strings.
808 "d_bcopy"
810 From d_bcopy.U:
811 This variable conditionally defines the "HAS_BCOPY" symbol if the
813 bcopy() routine is available to copy strings.
814 "d_bsd"
816 From Guess.U:
817 This symbol conditionally defines the symbol "BSD" when running on
819 a "BSD" system.
820 "d_bsdgetpgrp"
822 From d_getpgrp.U:
823 This variable conditionally defines "USE_BSD_GETPGRP" if getpgrp
825 needs one arguments whereas "USG" one needs none.
826 "d_bsdsetpgrp"
828 From d_setpgrp.U:
829 This variable conditionally defines "USE_BSD_SETPGRP" if setpgrp
831 needs two arguments whereas "USG" one needs none. See also
832 d_setpgid for a "POSIX" interface.
833 "d_builtin_choose_expr"
835 From d_builtin.U:
836 This conditionally defines "HAS_BUILTIN_CHOOSE_EXPR", which
838 indicates that the compiler supports __builtin_choose_expr(x,y,z).
839 This built-in function is analogous to the "x?y:z" operator in C,
840 except that the expression returned has its type unaltered by
841 promotion rules. Also, the built-in function does not evaluate the
842 expression that was not chosen.
843 "d_builtin_expect"
845 From d_builtin.U:
846 This conditionally defines "HAS_BUILTIN_EXPECT", which indicates
848 that the compiler supports __builtin_expect(exp,c). You may use
849 __builtin_expect to provide the compiler with branch prediction
850 information.
851 "d_bzero"
853 From d_bzero.U:
854 This variable conditionally defines the "HAS_BZERO" symbol if the
856 bzero() routine is available to set memory to 0.
857 "d_c99_variadic_macros"
859 From d_c99_variadic.U:
860 This variable conditionally defines the HAS_C99_VARIADIC_MACROS
862 symbol, which indicates to the C program that C99 variadic macros
863 are available.
864 "d_casti32"
866 From d_casti32.U:
867 This variable conditionally defines CASTI32, which indicates
869 whether the C compiler can cast large floats to 32-bit ints.
870 "d_castneg"
872 From d_castneg.U:
873 This variable conditionally defines "CASTNEG", which indicates
875 whether the C compiler can cast negative float to unsigned.
876 "d_cbrt"
878 From d_cbrt.U:
879 This variable conditionally defines the "HAS_CBRT" symbol, which
881 indicates to the C program that the cbrt() (cube root) function is
882 available.
883 "d_charvspr"
885 From d_vprintf.U:
886 This variable conditionally defines "CHARVSPRINTF" if this system
888 has vsprintf returning type (char*). The trend seems to be to
889 declare it as "int vsprintf()".
890 "d_chown"
892 From d_chown.U:
893 This variable conditionally defines the "HAS_CHOWN" symbol, which
895 indicates to the C program that the chown() routine is available.
896 "d_chroot"
898 From d_chroot.U:
899 This variable conditionally defines the "HAS_CHROOT" symbol, which
901 indicates to the C program that the chroot() routine is available.
902 "d_chsize"
904 From d_chsize.U:
905 This variable conditionally defines the "CHSIZE" symbol, which
907 indicates to the C program that the chsize() routine is available
908 to truncate files. You might need a -lx to get this routine.
909 "d_class"
911 From d_class.U:
912 This variable conditionally defines the "HAS_CLASS" symbol, which
914 indicates to the C program that the class() routine is available.
915 "d_clearenv"
917 From d_clearenv.U:
918 This variable conditionally defines the "HAS_CLEARENV" symbol,
920 which indicates to the C program that the clearenv () routine is
921 available.
922 "d_closedir"
924 From d_closedir.U:
925 This variable conditionally defines "HAS_CLOSEDIR" if closedir() is
927 available.
928 "d_cmsghdr_s"
930 From d_cmsghdr_s.U:
931 This variable conditionally defines the "HAS_STRUCT_CMSGHDR"
933 symbol, which indicates that the struct cmsghdr is supported.
934 "d_const"
936 From d_const.U:
937 This variable conditionally defines the "HASCONST" symbol, which
939 indicates to the C program that this C compiler knows about the
940 const type.
941 "d_copysign"
943 From d_copysign.U:
944 This variable conditionally defines the "HAS_COPYSIGN" symbol,
946 which indicates to the C program that the copysign() routine is
947 available.
948 "d_copysignl"
950 From d_copysignl.U:
951 This variable conditionally defines the "HAS_COPYSIGNL" symbol,
953 which indicates to the C program that the copysignl() routine is
954 available. If aintl is also present we can emulate modfl.
955 "d_cplusplus"
957 From d_cplusplus.U:
958 This variable conditionally defines the "USE_CPLUSPLUS" symbol,
960 which indicates that a C++ compiler was used to compiled Perl and
961 will be used to compile extensions.
962 "d_crypt"
964 From d_crypt.U:
965 This variable conditionally defines the "CRYPT" symbol, which
967 indicates to the C program that the crypt() routine is available to
968 encrypt passwords and the like.
969 "d_crypt_r"
971 From d_crypt_r.U:
972 This variable conditionally defines the "HAS_CRYPT_R" symbol, which
974 indicates to the C program that the crypt_r() routine is available.
975 "d_csh"
977 From d_csh.U:
978 This variable conditionally defines the "CSH" symbol, which
980 indicates to the C program that the C-shell exists.
981 "d_ctermid"
983 From d_ctermid.U:
984 This variable conditionally defines "CTERMID" if ctermid() is
986 available to generate filename for terminal.
987 "d_ctermid_r"
989 From d_ctermid_r.U:
990 This variable conditionally defines the "HAS_CTERMID_R" symbol,
992 which indicates to the C program that the ctermid_r() routine is
993 available.
994 "d_ctime64"
996 From d_timefuncs64.U:
997 This variable conditionally defines the HAS_CTIME64 symbol, which
999 indicates to the C program that the ctime64 () routine is
1000 available.
1001 "d_ctime_r"
1003 From d_ctime_r.U:
1004 This variable conditionally defines the "HAS_CTIME_R" symbol, which
1006 indicates to the C program that the ctime_r() routine is available.
1007 "d_cuserid"
1009 From d_cuserid.U:
1010 This variable conditionally defines the "HAS_CUSERID" symbol, which
1012 indicates to the C program that the cuserid() routine is available
1013 to get character login names.
1014 "d_dbl_dig"
1016 From d_dbl_dig.U:
1017 This variable conditionally defines d_dbl_dig if this system's
1019 header files provide "DBL_DIG", which is the number of significant
1020 digits in a double precision number.
1021 "d_dbminitproto"
1023 From d_dbminitproto.U:
1024 This variable conditionally defines the "HAS_DBMINIT_PROTO" symbol,
1026 which indicates to the C program that the system provides a
1027 prototype for the dbminit() function. Otherwise, it is up to the
1028 program to supply one.
1029 "d_difftime"
1031 From d_difftime.U:
1032 This variable conditionally defines the "HAS_DIFFTIME" symbol,
1034 which indicates to the C program that the difftime() routine is
1035 available.
1036 "d_difftime64"
1038 From d_timefuncs64.U:
1039 This variable conditionally defines the HAS_DIFFTIME64 symbol,
1041 which indicates to the C program that the difftime64 () routine is
1042 available.
1043 "d_dir_dd_fd"
1045 From d_dir_dd_fd.U:
1046 This variable conditionally defines the "HAS_DIR_DD_FD" symbol,
1048 which indicates that the "DIR" directory stream type contains a
1049 member variable called dd_fd.
1050 "d_dirfd"
1052 From d_dirfd.U:
1053 This variable conditionally defines the "HAS_DIRFD" constant, which
1055 indicates to the C program that dirfd() is available to return the
1056 file descriptor of a directory stream.
1057 "d_dirnamlen"
1059 From i_dirent.U:
1060 This variable conditionally defines "DIRNAMLEN", which indicates to
1062 the C program that the length of directory entry names is provided
1063 by a d_namelen field.
1064 "d_dladdr"
1066 From d_dladdr.U:
1067 This variable conditionally defines the "HAS_DLADDR" symbol, which
1069 indicates to the C program that the dladdr() routine is available
1070 to get a stack trace.
1071 "d_dlerror"
1073 From d_dlerror.U:
1074 This variable conditionally defines the "HAS_DLERROR" symbol, which
1076 indicates to the C program that the dlerror() routine is available.
1077 "d_dlopen"
1079 From d_dlopen.U:
1080 This variable conditionally defines the "HAS_DLOPEN" symbol, which
1082 indicates to the C program that the dlopen() routine is available.
1083 "d_dlsymun"
1085 From d_dlsymun.U:
1086 This variable conditionally defines "DLSYM_NEEDS_UNDERSCORE", which
1088 indicates that we need to prepend an underscore to the symbol name
1089 before calling dlsym().
1090 "d_double_has_inf"
1092 From infnan.U:
1093 This variable conditionally defines the symbol "DOUBLE_HAS_INF"
1095 which indicates that the double type has an infinity.
1096 "d_double_has_nan"
1098 From infnan.U:
1099 This variable conditionally defines the symbol "DOUBLE_HAS_INF"
1101 which indicates that the double type has a not-a-number.
1102 "d_double_has_negative_zero"
1104 From infnan.U:
1105 This variable conditionally defines the symbol
1107 "DOUBLE_HAS_NEGATIVE_ZERO" which indicates that the double type has
1108 a negative zero.
1109 "d_double_has_subnormals"
1111 From infnan.U:
1112 This variable conditionally defines the symbol
1114 "DOUBLE_HAS_SUBNORMALS" which indicates that the double type has
1115 subnormals (denormals).
1116 "d_double_style_cray"
1118 From longdblfio.U:
1119 This variable conditionally defines the symbol "DOUBLE_STYLE_CRAY"
1121 which indicates that the double is the 64-bit "CRAY" mainframe
1122 format.
1123 "d_double_style_ibm"
1125 From longdblfio.U:
1126 This variable conditionally defines the symbol "DOUBLE_STYLE_IBM",
1128 which indicates that the double is the 64-bit "IBM" mainframe
1129 format.
1130 "d_double_style_ieee"
1132 From longdblfio.U:
1133 This variable conditionally defines the symbol "DOUBLE_STYLE_IEEE",
1135 which indicates that the double is the 64-bit "IEEE" 754.
1136 "d_double_style_vax"
1138 From longdblfio.U:
1139 This variable conditionally defines the symbol "DOUBLE_STYLE_VAX",
1141 which indicates that the double is the 64-bit "VAX" format D or G.
1142 "d_dosuid"
1144 From d_dosuid.U:
1145 This variable conditionally defines the symbol "DOSUID", which
1147 tells the C program that it should insert setuid emulation code on
1148 hosts which have setuid #! scripts disabled.
1149 "d_drand48_r"
1151 From d_drand48_r.U:
1152 This variable conditionally defines the HAS_DRAND48_R symbol, which
1154 indicates to the C program that the drand48_r() routine is
1155 available.
1156 "d_drand48proto"
1158 From d_drand48proto.U:
1159 This variable conditionally defines the HAS_DRAND48_PROTO symbol,
1161 which indicates to the C program that the system provides a
1162 prototype for the drand48() function. Otherwise, it is up to the
1163 program to supply one.
1164 "d_dup2"
1166 From d_dup2.U:
1167 This variable conditionally defines HAS_DUP2 if dup2() is available
1169 to duplicate file descriptors.
1170 "d_duplocale"
1172 From d_newlocale.U:
1173 This variable conditionally defines the "HAS_DUPLOCALE" symbol,
1175 which indicates to the C program that the duplocale() routine is
1176 available to duplicate a locale object.
1177 "d_eaccess"
1179 From d_eaccess.U:
1180 This variable conditionally defines the "HAS_EACCESS" symbol, which
1182 indicates to the C program that the eaccess() routine is available.
1183 "d_endgrent"
1185 From d_endgrent.U:
1186 This variable conditionally defines the "HAS_ENDGRENT" symbol,
1188 which indicates to the C program that the endgrent() routine is
1189 available for sequential access of the group database.
1190 "d_endgrent_r"
1192 From d_endgrent_r.U:
1193 This variable conditionally defines the "HAS_ENDGRENT_R" symbol,
1195 which indicates to the C program that the endgrent_r() routine is
1196 available.
1197 "d_endhent"
1199 From d_endhent.U:
1200 This variable conditionally defines "HAS_ENDHOSTENT" if
1202 endhostent() is available to close whatever was being used for host
1203 queries.
1204 "d_endhostent_r"
1206 From d_endhostent_r.U:
1207 This variable conditionally defines the "HAS_ENDHOSTENT_R" symbol,
1209 which indicates to the C program that the endhostent_r() routine is
1210 available.
1211 "d_endnent"
1213 From d_endnent.U:
1214 This variable conditionally defines "HAS_ENDNETENT" if endnetent()
1216 is available to close whatever was being used for network queries.
1217 "d_endnetent_r"
1219 From d_endnetent_r.U:
1220 This variable conditionally defines the "HAS_ENDNETENT_R" symbol,
1222 which indicates to the C program that the endnetent_r() routine is
1223 available.
1224 "d_endpent"
1226 From d_endpent.U:
1227 This variable conditionally defines "HAS_ENDPROTOENT" if
1229 endprotoent() is available to close whatever was being used for
1230 protocol queries.
1231 "d_endprotoent_r"
1233 From d_endprotoent_r.U:
1234 This variable conditionally defines the "HAS_ENDPROTOENT_R" symbol,
1236 which indicates to the C program that the endprotoent_r() routine
1237 is available.
1238 "d_endpwent"
1240 From d_endpwent.U:
1241 This variable conditionally defines the "HAS_ENDPWENT" symbol,
1243 which indicates to the C program that the endpwent() routine is
1244 available for sequential access of the passwd database.
1245 "d_endpwent_r"
1247 From d_endpwent_r.U:
1248 This variable conditionally defines the "HAS_ENDPWENT_R" symbol,
1250 which indicates to the C program that the endpwent_r() routine is
1251 available.
1252 "d_endsent"
1254 From d_endsent.U:
1255 This variable conditionally defines "HAS_ENDSERVENT" if
1257 endservent() is available to close whatever was being used for
1258 service queries.
1259 "d_endservent_r"
1261 From d_endservent_r.U:
1262 This variable conditionally defines the "HAS_ENDSERVENT_R" symbol,
1264 which indicates to the C program that the endservent_r() routine is
1265 available.
1266 "d_eofnblk"
1268 From nblock_io.U:
1269 This variable conditionally defines "EOF_NONBLOCK" if "EOF" can be
1271 seen when reading from a non-blocking I/O source.
1272 "d_erf"
1274 From d_erf.U:
1275 This variable conditionally defines the "HAS_ERF" symbol, which
1277 indicates to the C program that the erf() routine is available.
1278 "d_erfc"
1280 From d_erfc.U:
1281 This variable conditionally defines the "HAS_ERFC" symbol, which
1283 indicates to the C program that the erfc() routine is available.
1284 "d_eunice"
1286 From Guess.U:
1287 This variable conditionally defines the symbols "EUNICE" and "VAX",
1289 which alerts the C program that it must deal with idiosyncrasies of
1290 "VMS".
1291 "d_exp2"
1293 From d_exp2.U:
1294 This variable conditionally defines the HAS_EXP2 symbol, which
1296 indicates to the C program that the exp2() routine is available.
1297 "d_expm1"
1299 From d_expm1.U:
1300 This variable conditionally defines the HAS_EXPM1 symbol, which
1302 indicates to the C program that the expm1() routine is available.
1303 "d_faststdio"
1305 From d_faststdio.U:
1306 This variable conditionally defines the "HAS_FAST_STDIO" symbol,
1308 which indicates to the C program that the "fast stdio" is available
1309 to manipulate the stdio buffers directly.
1310 "d_fchdir"
1312 From d_fchdir.U:
1313 This variable conditionally defines the "HAS_FCHDIR" symbol, which
1315 indicates to the C program that the fchdir() routine is available.
1316 "d_fchmod"
1318 From d_fchmod.U:
1319 This variable conditionally defines the "HAS_FCHMOD" symbol, which
1321 indicates to the C program that the fchmod() routine is available
1322 to change mode of opened files.
1323 "d_fchown"
1325 From d_fchown.U:
1326 This variable conditionally defines the "HAS_FCHOWN" symbol, which
1328 indicates to the C program that the fchown() routine is available
1329 to change ownership of opened files.
1330 "d_fcntl"
1332 From d_fcntl.U:
1333 This variable conditionally defines the "HAS_FCNTL" symbol, and
1335 indicates whether the fcntl() function exists
1336 "d_fcntl_can_lock"
1338 From d_fcntl_can_lock.U:
1339 This variable conditionally defines the "FCNTL_CAN_LOCK" symbol and
1341 indicates whether file locking with fcntl() works.
1342 "d_fd_macros"
1344 From d_fd_set.U:
1345 This variable contains the eventual value of the "HAS_FD_MACROS"
1347 symbol, which indicates if your C compiler knows about the macros
1348 which manipulate an fd_set.
1349 "d_fd_set"
1351 From d_fd_set.U:
1352 This variable contains the eventual value of the "HAS_FD_SET"
1354 symbol, which indicates if your C compiler knows about the fd_set
1355 typedef.
1356 "d_fdclose"
1358 From d_fdclose.U:
1359 This variable conditionally defines the "HAS_FDCLOSE" symbol, which
1361 indicates to the C program that the fdclose() routine is available.
1362 "d_fdim"
1364 From d_fdim.U:
1365 This variable conditionally defines the "HAS_FDIM" symbol, which
1367 indicates to the C program that the fdim() routine is available.
1368 "d_fds_bits"
1370 From d_fd_set.U:
1371 This variable contains the eventual value of the "HAS_FDS_BITS"
1373 symbol, which indicates if your fd_set typedef contains the
1374 fds_bits member. If you have an fd_set typedef, but the dweebs who
1375 installed it did a half-fast job and neglected to provide the
1376 macros to manipulate an fd_set, "HAS_FDS_BITS" will let us know how
1377 to fix the gaffe.
1378 "d_fegetround"
1380 From d_fegetround.U:
1381 This variable conditionally defines "HAS_FEGETROUND" if
1383 fegetround() is available to get the floating point rounding mode.
1384 "d_fgetpos"
1386 From d_fgetpos.U:
1387 This variable conditionally defines "HAS_FGETPOS" if fgetpos() is
1389 available to get the file position indicator.
1390 "d_finite"
1392 From d_finite.U:
1393 This variable conditionally defines the "HAS_FINITE" symbol, which
1395 indicates to the C program that the finite() routine is available.
1396 "d_finitel"
1398 From d_finitel.U:
1399 This variable conditionally defines the "HAS_FINITEL" symbol, which
1401 indicates to the C program that the finitel() routine is available.
1402 "d_flexfnam"
1404 From d_flexfnam.U:
1405 This variable conditionally defines the "FLEXFILENAMES" symbol,
1407 which indicates that the system supports filenames longer than 14
1408 characters.
1409 "d_flock"
1411 From d_flock.U:
1412 This variable conditionally defines "HAS_FLOCK" if flock() is
1414 available to do file locking.
1415 "d_flockproto"
1417 From d_flockproto.U:
1418 This variable conditionally defines the "HAS_FLOCK_PROTO" symbol,
1420 which indicates to the C program that the system provides a
1421 prototype for the flock() function. Otherwise, it is up to the
1422 program to supply one.
1423 "d_fma"
1425 From d_fma.U:
1426 This variable conditionally defines the "HAS_FMA" symbol, which
1428 indicates to the C program that the fma() routine is available.
1429 "d_fmax"
1431 From d_fmax.U:
1432 This variable conditionally defines the "HAS_FMAX" symbol, which
1434 indicates to the C program that the fmax() routine is available.
1435 "d_fmin"
1437 From d_fmin.U:
1438 This variable conditionally defines the "HAS_FMIN" symbol, which
1440 indicates to the C program that the fmin() routine is available.
1441 "d_fork"
1443 From d_fork.U:
1444 This variable conditionally defines the "HAS_FORK" symbol, which
1446 indicates to the C program that the fork() routine is available.
1447 "d_fp_class"
1449 From d_fp_class.U:
1450 This variable conditionally defines the "HAS_FP_CLASS" symbol,
1452 which indicates to the C program that the fp_class() routine is
1453 available.
1454 "d_fp_classify"
1456 From d_fpclassify.U:
1457 This variable conditionally defines the "HAS_FP_CLASSIFY" symbol,
1459 which indicates to the C program that the fp_classify() routine is
1460 available.
1461 "d_fp_classl"
1463 From d_fp_classl.U:
1464 This variable conditionally defines the "HAS_FP_CLASSL" symbol,
1466 which indicates to the C program that the fp_classl() routine is
1467 available.
1468 "d_fpathconf"
1470 From d_pathconf.U:
1471 This variable conditionally defines the "HAS_FPATHCONF" symbol,
1473 which indicates to the C program that the pathconf() routine is
1474 available to determine file-system related limits and options
1475 associated with a given open file descriptor.
1476 "d_fpclass"
1478 From d_fpclass.U:
1479 This variable conditionally defines the "HAS_FPCLASS" symbol, which
1481 indicates to the C program that the fpclass() routine is available.
1482 "d_fpclassify"
1484 From d_fpclassify.U:
1485 This variable conditionally defines the "HAS_FPCLASSIFY" symbol,
1487 which indicates to the C program that the fpclassify() routine is
1488 available.
1489 "d_fpclassl"
1491 From d_fpclassl.U:
1492 This variable conditionally defines the "HAS_FPCLASSL" symbol,
1494 which indicates to the C program that the fpclassl() routine is
1495 available.
1496 "d_fpgetround"
1498 From d_fpgetround.U:
1499 This variable conditionally defines "HAS_FPGETROUND" if
1501 fpgetround() is available to get the floating point rounding mode.
1502 "d_fpos64_t"
1504 From d_fpos64_t.U:
1505 This symbol will be defined if the C compiler supports fpos64_t.
1507 "d_freelocale"
1509 From d_newlocale.U:
1510 This variable conditionally defines the "HAS_FREELOCALE" symbol,
1512 which indicates to the C program that the freelocale() routine is
1513 available to deallocates the resources associated with a locale
1514 object.
1515 "d_frexpl"
1517 From d_frexpl.U:
1518 This variable conditionally defines the "HAS_FREXPL" symbol, which
1520 indicates to the C program that the frexpl() routine is available.
1521 "d_fs_data_s"
1523 From d_fs_data_s.U:
1524 This variable conditionally defines the "HAS_STRUCT_FS_DATA"
1526 symbol, which indicates that the struct fs_data is supported.
1527 "d_fseeko"
1529 From d_fseeko.U:
1530 This variable conditionally defines the "HAS_FSEEKO" symbol, which
1532 indicates to the C program that the fseeko() routine is available.
1533 "d_fsetpos"
1535 From d_fsetpos.U:
1536 This variable conditionally defines "HAS_FSETPOS" if fsetpos() is
1538 available to set the file position indicator.
1539 "d_fstatfs"
1541 From d_fstatfs.U:
1542 This variable conditionally defines the "HAS_FSTATFS" symbol, which
1544 indicates to the C program that the fstatfs() routine is available.
1545 "d_fstatvfs"
1547 From d_statvfs.U:
1548 This variable conditionally defines the "HAS_FSTATVFS" symbol,
1550 which indicates to the C program that the fstatvfs() routine is
1551 available.
1552 "d_fsync"
1554 From d_fsync.U:
1555 This variable conditionally defines the "HAS_FSYNC" symbol, which
1557 indicates to the C program that the fsync() routine is available.
1558 "d_ftello"
1560 From d_ftello.U:
1561 This variable conditionally defines the "HAS_FTELLO" symbol, which
1563 indicates to the C program that the ftello() routine is available.
1564 "d_ftime"
1566 From d_ftime.U:
1567 This variable conditionally defines the "HAS_FTIME" symbol, which
1569 indicates that the ftime() routine exists. The ftime() routine is
1570 basically a sub-second accuracy clock.
1571 "d_futimes"
1573 From d_futimes.U:
1574 This variable conditionally defines the "HAS_FUTIMES" symbol, which
1576 indicates to the C program that the futimes() routine is available.
1577 "d_gai_strerror"
1579 From d_gai_strerror.U:
1580 This variable conditionally defines the "HAS_GAI_STRERROR" symbol
1582 if the gai_strerror() routine is available and can be used to
1583 translate error codes returned by getaddrinfo() into human readable
1584 strings.
1585 "d_Gconvert"
1587 From d_gconvert.U:
1588 This variable holds what Gconvert is defined as to convert floating
1590 point numbers into strings. By default, Configure sets "this"
1591 macro to use the first of gconvert, gcvt, or sprintf that pass
1592 sprintf-%g-like behavior tests. If perl is using long doubles, the
1593 macro uses the first of the following functions that pass
1594 Configure's tests: qgcvt, sprintf (if Configure knows how to make
1595 sprintf format long doubles--see sPRIgldbl), gconvert, gcvt, and
1596 sprintf (casting to double). The gconvert_preference and
1597 gconvert_ld_preference variables can be used to alter Configure's
1598 preferences, for doubles and long doubles, respectively. If
1599 present, they contain a space-separated list of one or more of the
1600 above function names in the order they should be tried.
1601 d_Gconvert may be set to override Configure with a platform-
1603 specific function. If this function expects a double, a different
1604 value may need to be set by the uselongdouble.cbu call-back unit so
1605 that long doubles can be formatted without loss of precision.
1606 "d_gdbm_ndbm_h_uses_prototypes"
1608 From i_ndbm.U:
1609 This variable conditionally defines the "NDBM_H_USES_PROTOTYPES"
1611 symbol, which indicates that the gdbm-ndbm.h include file uses real
1612 "ANSI" C prototypes instead of K&R style function declarations. K&R
1613 style declarations are unsupported in C++, so the include file
1614 requires special handling when using a C++ compiler and this
1615 variable is undefined. Consult the different
1616 d_*ndbm_h_uses_prototypes variables to get the same information for
1617 alternative ndbm.h include files.
1618 "d_gdbmndbm_h_uses_prototypes"
1620 From i_ndbm.U:
1621 This variable conditionally defines the "NDBM_H_USES_PROTOTYPES"
1623 symbol, which indicates that the gdbm/ndbm.h include file uses real
1624 "ANSI" C prototypes instead of K&R style function declarations. K&R
1625 style declarations are unsupported in C++, so the include file
1626 requires special handling when using a C++ compiler and this
1627 variable is undefined. Consult the different
1628 d_*ndbm_h_uses_prototypes variables to get the same information for
1629 alternative ndbm.h include files.
1630 "d_getaddrinfo"
1632 From d_getaddrinfo.U:
1633 This variable conditionally defines the "HAS_GETADDRINFO" symbol,
1635 which indicates to the C program that the getaddrinfo() function is
1636 available.
1637 "d_getcwd"
1639 From d_getcwd.U:
1640 This variable conditionally defines the "HAS_GETCWD" symbol, which
1642 indicates to the C program that the getcwd() routine is available
1643 to get the current working directory.
1644 "d_getespwnam"
1646 From d_getespwnam.U:
1647 This variable conditionally defines "HAS_GETESPWNAM" if
1649 getespwnam() is available to retrieve enhanced (shadow) password
1650 entries by name.
1651 "d_getfsstat"
1653 From d_getfsstat.U:
1654 This variable conditionally defines the "HAS_GETFSSTAT" symbol,
1656 which indicates to the C program that the getfsstat() routine is
1657 available.
1658 "d_getgrent"
1660 From d_getgrent.U:
1661 This variable conditionally defines the "HAS_GETGRENT" symbol,
1663 which indicates to the C program that the getgrent() routine is
1664 available for sequential access of the group database.
1665 "d_getgrent_r"
1667 From d_getgrent_r.U:
1668 This variable conditionally defines the "HAS_GETGRENT_R" symbol,
1670 which indicates to the C program that the getgrent_r() routine is
1671 available.
1672 "d_getgrgid_r"
1674 From d_getgrgid_r.U:
1675 This variable conditionally defines the "HAS_GETGRGID_R" symbol,
1677 which indicates to the C program that the getgrgid_r() routine is
1678 available.
1679 "d_getgrnam_r"
1681 From d_getgrnam_r.U:
1682 This variable conditionally defines the "HAS_GETGRNAM_R" symbol,
1684 which indicates to the C program that the getgrnam_r() routine is
1685 available.
1686 "d_getgrps"
1688 From d_getgrps.U:
1689 This variable conditionally defines the "HAS_GETGROUPS" symbol,
1691 which indicates to the C program that the getgroups() routine is
1692 available to get the list of process groups.
1693 "d_gethbyaddr"
1695 From d_gethbyad.U:
1696 This variable conditionally defines the "HAS_GETHOSTBYADDR" symbol,
1698 which indicates to the C program that the gethostbyaddr() routine
1699 is available to look up hosts by their "IP" addresses.
1700 "d_gethbyname"
1702 From d_gethbynm.U:
1703 This variable conditionally defines the "HAS_GETHOSTBYNAME" symbol,
1705 which indicates to the C program that the gethostbyname() routine
1706 is available to look up host names in some data base or other.
1707 "d_gethent"
1709 From d_gethent.U:
1710 This variable conditionally defines "HAS_GETHOSTENT" if
1712 gethostent() is available to look up host names in some data base
1713 or another.
1714 "d_gethname"
1716 From d_gethname.U:
1717 This variable conditionally defines the "HAS_GETHOSTNAME" symbol,
1719 which indicates to the C program that the gethostname() routine may
1720 be used to derive the host name.
1721 "d_gethostbyaddr_r"
1723 From d_gethostbyaddr_r.U:
1724 This variable conditionally defines the "HAS_GETHOSTBYADDR_R"
1726 symbol, which indicates to the C program that the gethostbyaddr_r()
1727 routine is available.
1728 "d_gethostbyname_r"
1730 From d_gethostbyname_r.U:
1731 This variable conditionally defines the "HAS_GETHOSTBYNAME_R"
1733 symbol, which indicates to the C program that the gethostbyname_r()
1734 routine is available.
1735 "d_gethostent_r"
1737 From d_gethostent_r.U:
1738 This variable conditionally defines the "HAS_GETHOSTENT_R" symbol,
1740 which indicates to the C program that the gethostent_r() routine is
1741 available.
1742 "d_gethostprotos"
1744 From d_gethostprotos.U:
1745 This variable conditionally defines the "HAS_GETHOST_PROTOS"
1747 symbol, which indicates to the C program that <netdb.h> supplies
1748 prototypes for the various gethost*() functions. See also
1749 netdbtype.U for probing for various netdb types.
1750 "d_getitimer"
1752 From d_getitimer.U:
1753 This variable conditionally defines the "HAS_GETITIMER" symbol,
1755 which indicates to the C program that the getitimer() routine is
1756 available.
1757 "d_getlogin"
1759 From d_getlogin.U:
1760 This variable conditionally defines the "HAS_GETLOGIN" symbol,
1762 which indicates to the C program that the getlogin() routine is
1763 available to get the login name.
1764 "d_getlogin_r"
1766 From d_getlogin_r.U:
1767 This variable conditionally defines the "HAS_GETLOGIN_R" symbol,
1769 which indicates to the C program that the getlogin_r() routine is
1770 available.
1771 "d_getmnt"
1773 From d_getmnt.U:
1774 This variable conditionally defines the "HAS_GETMNT" symbol, which
1776 indicates to the C program that the getmnt() routine is available
1777 to retrieve one or more mount info blocks by filename.
1778 "d_getmntent"
1780 From d_getmntent.U:
1781 This variable conditionally defines the "HAS_GETMNTENT" symbol,
1783 which indicates to the C program that the getmntent() routine is
1784 available to iterate through mounted files to get their mount info.
1785 "d_getnameinfo"
1787 From d_getnameinfo.U:
1788 This variable conditionally defines the "HAS_GETNAMEINFO" symbol,
1790 which indicates to the C program that the getnameinfo() function is
1791 available.
1792 "d_getnbyaddr"
1794 From d_getnbyad.U:
1795 This variable conditionally defines the "HAS_GETNETBYADDR" symbol,
1797 which indicates to the C program that the getnetbyaddr() routine is
1798 available to look up networks by their "IP" addresses.
1799 "d_getnbyname"
1801 From d_getnbynm.U:
1802 This variable conditionally defines the "HAS_GETNETBYNAME" symbol,
1804 which indicates to the C program that the getnetbyname() routine is
1805 available to look up networks by their names.
1806 "d_getnent"
1808 From d_getnent.U:
1809 This variable conditionally defines "HAS_GETNETENT" if getnetent()
1811 is available to look up network names in some data base or another.
1812 "d_getnetbyaddr_r"
1814 From d_getnetbyaddr_r.U:
1815 This variable conditionally defines the "HAS_GETNETBYADDR_R"
1817 symbol, which indicates to the C program that the getnetbyaddr_r()
1818 routine is available.
1819 "d_getnetbyname_r"
1821 From d_getnetbyname_r.U:
1822 This variable conditionally defines the "HAS_GETNETBYNAME_R"
1824 symbol, which indicates to the C program that the getnetbyname_r()
1825 routine is available.
1826 "d_getnetent_r"
1828 From d_getnetent_r.U:
1829 This variable conditionally defines the "HAS_GETNETENT_R" symbol,
1831 which indicates to the C program that the getnetent_r() routine is
1832 available.
1833 "d_getnetprotos"
1835 From d_getnetprotos.U:
1836 This variable conditionally defines the "HAS_GETNET_PROTOS" symbol,
1838 which indicates to the C program that <netdb.h> supplies prototypes
1839 for the various getnet*() functions. See also netdbtype.U for
1840 probing for various netdb types.
1841 "d_getpagsz"
1843 From d_getpagsz.U:
1844 This variable conditionally defines "HAS_GETPAGESIZE" if
1846 getpagesize() is available to get the system page size.
1847 "d_getpbyname"
1849 From d_getprotby.U:
1850 This variable conditionally defines the "HAS_GETPROTOBYNAME"
1852 symbol, which indicates to the C program that the getprotobyname()
1853 routine is available to look up protocols by their name.
1854 "d_getpbynumber"
1856 From d_getprotby.U:
1857 This variable conditionally defines the "HAS_GETPROTOBYNUMBER"
1859 symbol, which indicates to the C program that the
1860 getprotobynumber() routine is available to look up protocols by
1861 their number.
1862 "d_getpent"
1864 From d_getpent.U:
1865 This variable conditionally defines "HAS_GETPROTOENT" if
1867 getprotoent() is available to look up protocols in some data base
1868 or another.
1869 "d_getpgid"
1871 From d_getpgid.U:
1872 This variable conditionally defines the "HAS_GETPGID" symbol, which
1874 indicates to the C program that the getpgid(pid) function is
1875 available to get the process group id.
1876 "d_getpgrp"
1878 From d_getpgrp.U:
1879 This variable conditionally defines "HAS_GETPGRP" if getpgrp() is
1881 available to get the current process group.
1882 "d_getpgrp2"
1884 From d_getpgrp2.U:
1885 This variable conditionally defines the HAS_GETPGRP2 symbol, which
1887 indicates to the C program that the getpgrp2() (as in DG/"UX")
1888 routine is available to get the current process group.
1889 "d_getppid"
1891 From d_getppid.U:
1892 This variable conditionally defines the "HAS_GETPPID" symbol, which
1894 indicates to the C program that the getppid() routine is available
1895 to get the parent process "ID".
1896 "d_getprior"
1898 From d_getprior.U:
1899 This variable conditionally defines "HAS_GETPRIORITY" if
1901 getpriority() is available to get a process's priority.
1902 "d_getprotobyname_r"
1904 From d_getprotobyname_r.U:
1905 This variable conditionally defines the "HAS_GETPROTOBYNAME_R"
1907 symbol, which indicates to the C program that the
1908 getprotobyname_r() routine is available.
1909 "d_getprotobynumber_r"
1911 From d_getprotobynumber_r.U:
1912 This variable conditionally defines the "HAS_GETPROTOBYNUMBER_R"
1914 symbol, which indicates to the C program that the
1915 getprotobynumber_r() routine is available.
1916 "d_getprotoent_r"
1918 From d_getprotoent_r.U:
1919 This variable conditionally defines the "HAS_GETPROTOENT_R" symbol,
1921 which indicates to the C program that the getprotoent_r() routine
1922 is available.
1923 "d_getprotoprotos"
1925 From d_getprotoprotos.U:
1926 This variable conditionally defines the "HAS_GETPROTO_PROTOS"
1928 symbol, which indicates to the C program that <netdb.h> supplies
1929 prototypes for the various getproto*() functions. See also
1930 netdbtype.U for probing for various netdb types.
1931 "d_getprpwnam"
1933 From d_getprpwnam.U:
1934 This variable conditionally defines "HAS_GETPRPWNAM" if
1936 getprpwnam() is available to retrieve protected (shadow) password
1937 entries by name.
1938 "d_getpwent"
1940 From d_getpwent.U:
1941 This variable conditionally defines the "HAS_GETPWENT" symbol,
1943 which indicates to the C program that the getpwent() routine is
1944 available for sequential access of the passwd database.
1945 "d_getpwent_r"
1947 From d_getpwent_r.U:
1948 This variable conditionally defines the "HAS_GETPWENT_R" symbol,
1950 which indicates to the C program that the getpwent_r() routine is
1951 available.
1952 "d_getpwnam_r"
1954 From d_getpwnam_r.U:
1955 This variable conditionally defines the "HAS_GETPWNAM_R" symbol,
1957 which indicates to the C program that the getpwnam_r() routine is
1958 available.
1959 "d_getpwuid_r"
1961 From d_getpwuid_r.U:
1962 This variable conditionally defines the "HAS_GETPWUID_R" symbol,
1964 which indicates to the C program that the getpwuid_r() routine is
1965 available.
1966 "d_getsbyname"
1968 From d_getsrvby.U:
1969 This variable conditionally defines the "HAS_GETSERVBYNAME" symbol,
1971 which indicates to the C program that the getservbyname() routine
1972 is available to look up services by their name.
1973 "d_getsbyport"
1975 From d_getsrvby.U:
1976 This variable conditionally defines the "HAS_GETSERVBYPORT" symbol,
1978 which indicates to the C program that the getservbyport() routine
1979 is available to look up services by their port.
1980 "d_getsent"
1982 From d_getsent.U:
1983 This variable conditionally defines "HAS_GETSERVENT" if
1985 getservent() is available to look up network services in some data
1986 base or another.
1987 "d_getservbyname_r"
1989 From d_getservbyname_r.U:
1990 This variable conditionally defines the "HAS_GETSERVBYNAME_R"
1992 symbol, which indicates to the C program that the getservbyname_r()
1993 routine is available.
1994 "d_getservbyport_r"
1996 From d_getservbyport_r.U:
1997 This variable conditionally defines the "HAS_GETSERVBYPORT_R"
1999 symbol, which indicates to the C program that the getservbyport_r()
2000 routine is available.
2001 "d_getservent_r"
2003 From d_getservent_r.U:
2004 This variable conditionally defines the "HAS_GETSERVENT_R" symbol,
2006 which indicates to the C program that the getservent_r() routine is
2007 available.
2008 "d_getservprotos"
2010 From d_getservprotos.U:
2011 This variable conditionally defines the "HAS_GETSERV_PROTOS"
2013 symbol, which indicates to the C program that <netdb.h> supplies
2014 prototypes for the various getserv*() functions. See also
2015 netdbtype.U for probing for various netdb types.
2016 "d_getspnam"
2018 From d_getspnam.U:
2019 This variable conditionally defines "HAS_GETSPNAM" if getspnam() is
2021 available to retrieve SysV shadow password entries by name.
2022 "d_getspnam_r"
2024 From d_getspnam_r.U:
2025 This variable conditionally defines the "HAS_GETSPNAM_R" symbol,
2027 which indicates to the C program that the getspnam_r() routine is
2028 available.
2029 "d_gettimeod"
2031 From d_ftime.U:
2032 This variable conditionally defines the "HAS_GETTIMEOFDAY" symbol,
2034 which indicates that the gettimeofday() system call exists (to
2035 obtain a sub-second accuracy clock). You should probably include
2036 <sys/resource.h>.
2037 "d_gmtime64"
2039 From d_timefuncs64.U:
2040 This variable conditionally defines the HAS_GMTIME64 symbol, which
2042 indicates to the C program that the gmtime64 () routine is
2043 available.
2044 "d_gmtime_r"
2046 From d_gmtime_r.U:
2047 This variable conditionally defines the "HAS_GMTIME_R" symbol,
2049 which indicates to the C program that the gmtime_r() routine is
2050 available.
2051 "d_gnulibc"
2053 From d_gnulibc.U:
2054 Defined if we're dealing with the "GNU" C Library.
2056 "d_grpasswd"
2058 From i_grp.U:
2059 This variable conditionally defines "GRPASSWD", which indicates
2061 that struct group in <grp.h> contains gr_passwd.
2062 "d_hasmntopt"
2064 From d_hasmntopt.U:
2065 This variable conditionally defines the "HAS_HASMNTOPT" symbol,
2067 which indicates to the C program that the hasmntopt() routine is
2068 available to query the mount options of file systems.
2069 "d_htonl"
2071 From d_htonl.U:
2072 This variable conditionally defines "HAS_HTONL" if htonl() and its
2074 friends are available to do network order byte swapping.
2075 "d_hypot"
2077 From d_hypot.U:
2078 This variable conditionally defines "HAS_HYPOT" if hypot is
2080 available for numerically stable hypotenuse function.
2081 "d_ilogb"
2083 From d_ilogb.U:
2084 This variable conditionally defines the "HAS_ILOGB" symbol, which
2086 indicates to the C program that the ilogb() routine is available
2087 for extracting the exponent of double x as a signed integer.
2088 "d_ilogbl"
2090 From d_ilogbl.U:
2091 This variable conditionally defines the "HAS_ILOGBL" symbol, which
2093 indicates to the C program that the ilogbl() routine is available
2094 for extracting the exponent of long double x as a signed integer.
2095 If scalbnl is also present we can emulate frexpl.
2096 "d_inc_version_list"
2098 From inc_version_list.U:
2099 This variable conditionally defines "PERL_INC_VERSION_LIST". It is
2101 set to undef when "PERL_INC_VERSION_LIST" is empty.
2102 "d_index"
2104 From d_strchr.U:
2105 This variable conditionally defines "HAS_INDEX" if index() and
2107 rindex() are available for string searching.
2108 "d_inetaton"
2110 From d_inetaton.U:
2111 This variable conditionally defines the "HAS_INET_ATON" symbol,
2113 which indicates to the C program that the inet_aton() function is
2114 available to parse "IP" address "dotted-quad" strings.
2115 "d_inetntop"
2117 From d_inetntop.U:
2118 This variable conditionally defines the "HAS_INETNTOP" symbol,
2120 which indicates to the C program that the inet_ntop() function is
2121 available.
2122 "d_inetpton"
2124 From d_inetpton.U:
2125 This variable conditionally defines the "HAS_INETPTON" symbol,
2127 which indicates to the C program that the inet_pton() function is
2128 available.
2129 "d_int64_t"
2131 From d_int64_t.U:
2132 This symbol will be defined if the C compiler supports int64_t.
2134 "d_ip_mreq"
2136 From d_socket.U:
2137 This variable conditionally defines the "HAS_IP_MREQ" symbol, which
2139 indicates the availability of a struct ip_mreq.
2140 "d_ip_mreq_source"
2142 From d_socket.U:
2143 This variable conditionally defines the "HAS_IP_MREQ_SOURCE"
2145 symbol, which indicates the availability of a struct
2146 ip_mreq_source.
2147 "d_ipv6_mreq"
2149 From d_socket.U:
2150 This variable conditionally defines the HAS_IPV6_MREQ symbol, which
2152 indicates the availability of a struct ipv6_mreq.
2153 "d_ipv6_mreq_source"
2155 From d_socket.U:
2156 This variable conditionally defines the HAS_IPV6_MREQ_SOURCE
2158 symbol, which indicates the availability of a struct
2159 ipv6_mreq_source.
2160 "d_isascii"
2162 From d_isascii.U:
2163 This variable conditionally defines the "HAS_ISASCII" constant,
2165 which indicates to the C program that isascii() is available.
2166 "d_isblank"
2168 From d_isblank.U:
2169 This variable conditionally defines the "HAS_ISBLANK" constant,
2171 which indicates to the C program that isblank() is available.
2172 "d_isfinite"
2174 From d_isfinite.U:
2175 This variable conditionally defines the "HAS_ISFINITE" symbol,
2177 which indicates to the C program that the isfinite() routine is
2178 available.
2179 "d_isfinitel"
2181 From d_isfinitel.U:
2182 This variable conditionally defines the "HAS_ISFINITEL" symbol,
2184 which indicates to the C program that the isfinitel() routine is
2185 available.
2186 "d_isinf"
2188 From d_isinf.U:
2189 This variable conditionally defines the "HAS_ISINF" symbol, which
2191 indicates to the C program that the isinf() routine is available.
2192 "d_isinfl"
2194 From d_isinfl.U:
2195 This variable conditionally defines the "HAS_ISINFL" symbol, which
2197 indicates to the C program that the isinfl() routine is available.
2198 "d_isless"
2200 From d_isless.U:
2201 This variable conditionally defines the "HAS_ISLESS" symbol, which
2203 indicates to the C program that the isless() routine is available.
2204 "d_isnan"
2206 From d_isnan.U:
2207 This variable conditionally defines the "HAS_ISNAN" symbol, which
2209 indicates to the C program that the isnan() routine is available.
2210 "d_isnanl"
2212 From d_isnanl.U:
2213 This variable conditionally defines the "HAS_ISNANL" symbol, which
2215 indicates to the C program that the isnanl() routine is available.
2216 "d_isnormal"
2218 From d_isnormal.U:
2219 This variable conditionally defines the "HAS_ISNORMAL" symbol,
2221 which indicates to the C program that the isnormal() routine is
2222 available.
2223 "d_j0"
2225 From d_j0.U:
2226 This variable conditionally defines the HAS_J0 symbol, which
2228 indicates to the C program that the j0() routine is available.
2229 "d_j0l"
2231 From d_j0.U:
2232 This variable conditionally defines the HAS_J0L symbol, which
2234 indicates to the C program that the j0l() routine is available.
2235 "d_killpg"
2237 From d_killpg.U:
2238 This variable conditionally defines the "HAS_KILLPG" symbol, which
2240 indicates to the C program that the killpg() routine is available
2241 to kill process groups.
2242 "d_lc_monetary_2008"
2244 From d_lc_monetary_2008.U:
2245 This variable conditionally defines HAS_LC_MONETARY_2008 if libc
2247 has the international currency locale rules from "POSIX"
2248 1003.1-2008.
2249 "d_lchown"
2251 From d_lchown.U:
2252 This variable conditionally defines the "HAS_LCHOWN" symbol, which
2254 indicates to the C program that the lchown() routine is available
2255 to operate on a symbolic link (instead of following the link).
2256 "d_ldbl_dig"
2258 From d_ldbl_dig.U:
2259 This variable conditionally defines d_ldbl_dig if this system's
2261 header files provide "LDBL_DIG", which is the number of significant
2262 digits in a long double precision number.
2263 "d_ldexpl"
2265 From d_longdbl.U:
2266 This variable conditionally defines the "HAS_LDEXPL" symbol, which
2268 indicates to the C program that the ldexpl() routine is available.
2269 "d_lgamma"
2271 From d_lgamma.U:
2272 This variable conditionally defines the "HAS_LGAMMA" symbol, which
2274 indicates to the C program that the lgamma() routine is available
2275 for the log gamma function. See also d_tgamma and d_lgamma_r.
2276 "d_lgamma_r"
2278 From d_lgamma_r.U:
2279 This variable conditionally defines the "HAS_LGAMMA_R" symbol,
2281 which indicates to the C program that the lgamma_r() routine is
2282 available for the log gamma function, without using the global
2283 signgam variable.
2284 "d_libm_lib_version"
2286 From d_libm_lib_version.U:
2287 This variable conditionally defines the "LIBM_LIB_VERSION" symbol,
2289 which indicates to the C program that math.h defines "_LIB_VERSION"
2290 being available in libm
2291 "d_libname_unique"
2293 From so.U:
2294 This variable is defined if the target system insists on unique
2296 basenames for shared library files. This is currently true on
2297 Android, false everywhere else we know of. Defaults to "undef".
2298 "d_link"
2300 From d_link.U:
2301 This variable conditionally defines "HAS_LINK" if link() is
2303 available to create hard links.
2304 "d_llrint"
2306 From d_llrint.U:
2307 This variable conditionally defines the "HAS_LLRINT" symbol, which
2309 indicates to the C program that the llrint() routine is available
2310 to return the long long value closest to a double (according to the
2311 current rounding mode).
2312 "d_llrintl"
2314 From d_llrintl.U:
2315 This variable conditionally defines the "HAS_LLRINTL" symbol, which
2317 indicates to the C program that the llrintl() routine is available
2318 to return the long long value closest to a long double (according
2319 to the current rounding mode).
2320 "d_llround"
2322 From d_llround.U:
2323 This variable conditionally defines the "HAS_LLROUND" symbol, which
2325 indicates to the C program that the llround() routine is available
2326 to return the long long value nearest to x.
2327 "d_llroundl"
2329 From d_llroundl.U:
2330 This variable conditionally defines the "HAS_LLROUNDL" symbol,
2332 which indicates to the C program that the llroundl() routine is
2333 available to return the long long value nearest to x away from
2334 zero.
2335 "d_localtime64"
2337 From d_timefuncs64.U:
2338 This variable conditionally defines the HAS_LOCALTIME64 symbol,
2340 which indicates to the C program that the localtime64 () routine is
2341 available.
2342 "d_localtime_r"
2344 From d_localtime_r.U:
2345 This variable conditionally defines the "HAS_LOCALTIME_R" symbol,
2347 which indicates to the C program that the localtime_r() routine is
2348 available.
2349 "d_localtime_r_needs_tzset"
2351 From d_localtime_r.U:
2352 This variable conditionally defines the "LOCALTIME_R_NEEDS_TZSET"
2354 symbol, which makes us call tzset before localtime_r()
2355 "d_locconv"
2357 From d_locconv.U:
2358 This variable conditionally defines "HAS_LOCALECONV" if
2360 localeconv() is available for numeric and monetary formatting
2361 conventions.
2362 "d_lockf"
2364 From d_lockf.U:
2365 This variable conditionally defines "HAS_LOCKF" if lockf() is
2367 available to do file locking.
2368 "d_log1p"
2370 From d_log1p.U:
2371 This variable conditionally defines the HAS_LOG1P symbol, which
2373 indicates to the C program that the logp1() routine is available to
2374 compute log(1 + x) for values of x close to zero.
2375 "d_log2"
2377 From d_log2.U:
2378 This variable conditionally defines the HAS_LOG2 symbol, which
2380 indicates to the C program that the log2() routine is available to
2381 compute log base two.
2382 "d_logb"
2384 From d_logb.U:
2385 This variable conditionally defines the "HAS_LOGB" symbol, which
2387 indicates to the C program that the logb() routine is available to
2388 extract the exponent of x.
2389 "d_longdbl"
2391 From d_longdbl.U:
2392 This variable conditionally defines "HAS_LONG_DOUBLE" if the long
2394 double type is supported.
2395 "d_long_double_style_ieee"
2397 From d_longdbl.U:
2398 This variable conditionally defines "LONG_DOUBLE_STYLE_IEEE" if the
2400 long double is any of the "IEEE" 754 style long doubles:
2401 "LONG_DOUBLE_STYLE_IEEE_STD", "LONG_DOUBLE_STYLE_IEEE_EXTENDED",
2402 "LONG_DOUBLE_STYLE_IEEE_DOUBLEDOUBLE".
2403 "d_long_double_style_ieee_doubledouble"
2405 From d_longdbl.U:
2406 This variable conditionally defines
2408 "LONG_DOUBLE_STYLE_IEEE_DOUBLEDOUBLE" if the long double is the
2409 128-bit "IEEE" 754 double-double.
2410 "d_long_double_style_ieee_extended"
2412 From d_longdbl.U:
2413 This variable conditionally defines
2415 "LONG_DOUBLE_STYLE_IEEE_EXTENDED" if the long double is the 80-bit
2416 "IEEE" 754 extended precision. Note that despite the "extended"
2417 this is less than the "std", since thisis an extension of the
2418 double precision.
2419 "d_long_double_style_ieee_std"
2421 From d_longdbl.U:
2422 This variable conditionally defines "LONG_DOUBLE_STYLE_IEEE_STD" if
2424 the long double is the 128-bit "IEEE" 754.
2425 "d_long_double_style_vax"
2427 From d_longdbl.U:
2428 This variable conditionally defines "LONG_DOUBLE_STYLE_VAX" if the
2430 long double is the 128-bit "VAX" format H.
2431 "d_longlong"
2433 From d_longlong.U:
2434 This variable conditionally defines "HAS_LONG_LONG" if the long
2436 long type is supported.
2437 "d_lrint"
2439 From d_lrint.U:
2440 This variable conditionally defines the "HAS_LRINT" symbol, which
2442 indicates to the C program that the lrint() routine is available to
2443 return the integral value closest to a double (according to the
2444 current rounding mode).
2445 "d_lrintl"
2447 From d_lrintl.U:
2448 This variable conditionally defines the "HAS_LRINTL" symbol, which
2450 indicates to the C program that the lrintl() routine is available
2451 to return the integral value closest to a long double (according to
2452 the current rounding mode).
2453 "d_lround"
2455 From d_lround.U:
2456 This variable conditionally defines the "HAS_LROUND" symbol, which
2458 indicates to the C program that the lround() routine is available
2459 to return the integral value nearest to x.
2460 "d_lroundl"
2462 From d_lroundl.U:
2463 This variable conditionally defines the "HAS_LROUNDL" symbol, which
2465 indicates to the C program that the lroundl() routine is available
2466 to return the integral value nearest to x away from zero.
2467 "d_lseekproto"
2469 From d_lseekproto.U:
2470 This variable conditionally defines the "HAS_LSEEK_PROTO" symbol,
2472 which indicates to the C program that the system provides a
2473 prototype for the lseek() function. Otherwise, it is up to the
2474 program to supply one.
2475 "d_lstat"
2477 From d_lstat.U:
2478 This variable conditionally defines "HAS_LSTAT" if lstat() is
2480 available to do file stats on symbolic links.
2481 "d_madvise"
2483 From d_madvise.U:
2484 This variable conditionally defines "HAS_MADVISE" if madvise() is
2486 available to map a file into memory.
2487 "d_malloc_good_size"
2489 From d_malloc_size.U:
2490 This symbol, if defined, indicates that the malloc_good_size
2492 routine is available for use.
2493 "d_malloc_size"
2495 From d_malloc_size.U:
2496 This symbol, if defined, indicates that the malloc_size routine is
2498 available for use.
2499 "d_mblen"
2501 From d_mblen.U:
2502 This variable conditionally defines the "HAS_MBLEN" symbol, which
2504 indicates to the C program that the mblen() routine is available to
2505 find the number of bytes in a multibye character.
2506 "d_mbstowcs"
2508 From d_mbstowcs.U:
2509 This variable conditionally defines the "HAS_MBSTOWCS" symbol,
2511 which indicates to the C program that the mbstowcs() routine is
2512 available to convert a multibyte string into a wide character
2513 string.
2514 "d_mbtowc"
2516 From d_mbtowc.U:
2517 This variable conditionally defines the "HAS_MBTOWC" symbol, which
2519 indicates to the C program that the mbtowc() routine is available
2520 to convert multibyte to a wide character.
2521 "d_memchr"
2523 From d_memchr.U:
2524 This variable conditionally defines the "HAS_MEMCHR" symbol, which
2526 indicates to the C program that the memchr() routine is available
2527 to locate characters within a C string.
2528 "d_memcmp"
2530 From d_memcmp.U:
2531 This variable conditionally defines the "HAS_MEMCMP" symbol, which
2533 indicates to the C program that the memcmp() routine is available
2534 to compare blocks of memory.
2535 "d_memcpy"
2537 From d_memcpy.U:
2538 This variable conditionally defines the "HAS_MEMCPY" symbol, which
2540 indicates to the C program that the memcpy() routine is available
2541 to copy blocks of memory.
2542 "d_memmem"
2544 From d_memmem.U:
2545 This variable conditionally defines the "HAS_MEMMEM" symbol, which
2547 indicates to the C program that the memmem() routine is available
2548 to return a pointer to the start of the first occurance of a
2549 substring in a memory area (or "NULL" if not found).
2550 "d_memmove"
2552 From d_memmove.U:
2553 This variable conditionally defines the "HAS_MEMMOVE" symbol, which
2555 indicates to the C program that the memmove() routine is available
2556 to copy potentially overlapping blocks of memory.
2557 "d_memset"
2559 From d_memset.U:
2560 This variable conditionally defines the "HAS_MEMSET" symbol, which
2562 indicates to the C program that the memset() routine is available
2563 to set blocks of memory.
2564 "d_mkdir"
2566 From d_mkdir.U:
2567 This variable conditionally defines the "HAS_MKDIR" symbol, which
2569 indicates to the C program that the mkdir() routine is available to
2570 create directories..
2571 "d_mkdtemp"
2573 From d_mkdtemp.U:
2574 This variable conditionally defines the "HAS_MKDTEMP" symbol, which
2576 indicates to the C program that the mkdtemp() routine is available
2577 to exclusively create a uniquely named temporary directory.
2578 "d_mkfifo"
2580 From d_mkfifo.U:
2581 This variable conditionally defines the "HAS_MKFIFO" symbol, which
2583 indicates to the C program that the mkfifo() routine is available.
2584 "d_mkstemp"
2586 From d_mkstemp.U:
2587 This variable conditionally defines the "HAS_MKSTEMP" symbol, which
2589 indicates to the C program that the mkstemp() routine is available
2590 to exclusively create and open a uniquely named temporary file.
2591 "d_mkstemps"
2593 From d_mkstemps.U:
2594 This variable conditionally defines the "HAS_MKSTEMPS" symbol,
2596 which indicates to the C program that the mkstemps() routine is
2597 available to exclusively create and open a uniquely named (with a
2598 suffix) temporary file.
2599 "d_mktime"
2601 From d_mktime.U:
2602 This variable conditionally defines the "HAS_MKTIME" symbol, which
2604 indicates to the C program that the mktime() routine is available.
2605 "d_mktime64"
2607 From d_timefuncs64.U:
2608 This variable conditionally defines the HAS_MKTIME64 symbol, which
2610 indicates to the C program that the mktime64 () routine is
2611 available.
2612 "d_mmap"
2614 From d_mmap.U:
2615 This variable conditionally defines "HAS_MMAP" if mmap() is
2617 available to map a file into memory.
2618 "d_modfl"
2620 From d_modfl.U:
2621 This variable conditionally defines the "HAS_MODFL" symbol, which
2623 indicates to the C program that the modfl() routine is available.
2624 "d_modflproto"
2626 From d_modfl.U:
2627 This symbol, if defined, indicates that the system provides a
2629 prototype for the modfl() function. Otherwise, it is up to the
2630 program to supply one. C99 says it should be long double
2631 modfl(long double, long double *);
2632 "d_mprotect"
2634 From d_mprotect.U:
2635 This variable conditionally defines "HAS_MPROTECT" if mprotect() is
2637 available to modify the access protection of a memory mapped file.
2638 "d_msg"
2640 From d_msg.U:
2641 This variable conditionally defines the "HAS_MSG" symbol, which
2643 indicates that the entire msg*(2) library is present.
2644 "d_msg_ctrunc"
2646 From d_socket.U:
2647 This variable conditionally defines the "HAS_MSG_CTRUNC" symbol,
2649 which indicates that the "MSG_CTRUNC" is available. #ifdef is not
2650 enough because it may be an enum, glibc has been known to do this.
2651 "d_msg_dontroute"
2653 From d_socket.U:
2654 This variable conditionally defines the "HAS_MSG_DONTROUTE" symbol,
2656 which indicates that the "MSG_DONTROUTE" is available. #ifdef is
2657 not enough because it may be an enum, glibc has been known to do
2658 this.
2659 "d_msg_oob"
2661 From d_socket.U:
2662 This variable conditionally defines the "HAS_MSG_OOB" symbol, which
2664 indicates that the "MSG_OOB" is available. #ifdef is not enough
2665 because it may be an enum, glibc has been known to do this.
2666 "d_msg_peek"
2668 From d_socket.U:
2669 This variable conditionally defines the "HAS_MSG_PEEK" symbol,
2671 which indicates that the "MSG_PEEK" is available. #ifdef is not
2672 enough because it may be an enum, glibc has been known to do this.
2673 "d_msg_proxy"
2675 From d_socket.U:
2676 This variable conditionally defines the "HAS_MSG_PROXY" symbol,
2678 which indicates that the "MSG_PROXY" is available. #ifdef is not
2679 enough because it may be an enum, glibc has been known to do this.
2680 "d_msgctl"
2682 From d_msgctl.U:
2683 This variable conditionally defines the "HAS_MSGCTL" symbol, which
2685 indicates to the C program that the msgctl() routine is available.
2686 "d_msgget"
2688 From d_msgget.U:
2689 This variable conditionally defines the "HAS_MSGGET" symbol, which
2691 indicates to the C program that the msgget() routine is available.
2692 "d_msghdr_s"
2694 From d_msghdr_s.U:
2695 This variable conditionally defines the "HAS_STRUCT_MSGHDR" symbol,
2697 which indicates that the struct msghdr is supported.
2698 "d_msgrcv"
2700 From d_msgrcv.U:
2701 This variable conditionally defines the "HAS_MSGRCV" symbol, which
2703 indicates to the C program that the msgrcv() routine is available.
2704 "d_msgsnd"
2706 From d_msgsnd.U:
2707 This variable conditionally defines the "HAS_MSGSND" symbol, which
2709 indicates to the C program that the msgsnd() routine is available.
2710 "d_msync"
2712 From d_msync.U:
2713 This variable conditionally defines "HAS_MSYNC" if msync() is
2715 available to synchronize a mapped file.
2716 "d_munmap"
2718 From d_munmap.U:
2719 This variable conditionally defines "HAS_MUNMAP" if munmap() is
2721 available to unmap a region mapped by mmap().
2722 "d_mymalloc"
2724 From mallocsrc.U:
2725 This variable conditionally defines "MYMALLOC" in case other parts
2727 of the source want to take special action if "MYMALLOC" is used.
2728 This may include different sorts of profiling or error detection.
2729 "d_nan"
2731 From d_nan.U:
2732 This variable conditionally defines "HAS_NAN" if nan() is available
2734 to generate NaN.
2735 "d_ndbm"
2737 From i_ndbm.U:
2738 This variable conditionally defines the "HAS_NDBM" symbol, which
2740 indicates that both the ndbm.h include file and an appropriate ndbm
2741 library exist. Consult the different i_*ndbm variables to find out
2742 the actual include location. Sometimes, a system has the header
2743 file but not the library. This variable will only be set if the
2744 system has both.
2745 "d_ndbm_h_uses_prototypes"
2747 From i_ndbm.U:
2748 This variable conditionally defines the "NDBM_H_USES_PROTOTYPES"
2750 symbol, which indicates that the ndbm.h include file uses real
2751 "ANSI" C prototypes instead of K&R style function declarations. K&R
2752 style declarations are unsupported in C++, so the include file
2753 requires special handling when using a C++ compiler and this
2754 variable is undefined. Consult the different
2755 d_*ndbm_h_uses_prototypes variables to get the same information for
2756 alternative ndbm.h include files.
2757 "d_nearbyint"
2759 From d_nearbyint.U:
2760 This variable conditionally defines "HAS_NEARBYINT" if nearbyint()
2762 is available to return the integral value closest to (according to
2763 the current rounding mode) to x.
2764 "d_newlocale"
2766 From d_newlocale.U:
2767 This variable conditionally defines the "HAS_NEWLOCALE" symbol,
2769 which indicates to the C program that the newlocale() routine is
2770 available to return a new locale object or modify an existing
2771 locale object.
2772 "d_nextafter"
2774 From d_nextafter.U:
2775 This variable conditionally defines "HAS_NEXTAFTER" if nextafter()
2777 is available to return the next machine representable double from x
2778 in direction y.
2779 "d_nexttoward"
2781 From d_nexttoward.U:
2782 This variable conditionally defines "HAS_NEXTTOWARD" if
2784 nexttoward() is available to return the next machine representable
2785 long double from x in direction y.
2786 "d_nice"
2788 From d_nice.U:
2789 This variable conditionally defines the "HAS_NICE" symbol, which
2791 indicates to the C program that the nice() routine is available.
2792 "d_nl_langinfo"
2794 From d_nl_langinfo.U:
2795 This variable conditionally defines the "HAS_NL_LANGINFO" symbol,
2797 which indicates to the C program that the nl_langinfo() routine is
2798 available.
2799 "d_nv_preserves_uv"
2801 From perlxv.U:
2802 This variable indicates whether a variable of type nvtype can
2804 preserve all the bits a variable of type uvtype.
2805 "d_nv_zero_is_allbits_zero"
2807 From perlxv.U:
2808 This variable indicates whether a variable of type nvtype stores
2810 0.0 in memory as all bits zero.
2811 "d_off64_t"
2813 From d_off64_t.U:
2814 This symbol will be defined if the C compiler supports off64_t.
2816 "d_old_pthread_create_joinable"
2818 From d_pthrattrj.U:
2819 This variable conditionally defines pthread_create_joinable. undef
2821 if pthread.h defines "PTHREAD_CREATE_JOINABLE".
2822 "d_oldpthreads"
2824 From usethreads.U:
2825 This variable conditionally defines the "OLD_PTHREADS_API" symbol,
2827 and indicates that Perl should be built to use the old draft
2828 "POSIX" threads "API". This is only potentially meaningful if
2829 usethreads is set.
2830 "d_oldsock"
2832 From d_socket.U:
2833 This variable conditionally defines the "OLDSOCKET" symbol, which
2835 indicates that the "BSD" socket interface is based on 4.1c and not
2836 4.2.
2837 "d_open3"
2839 From d_open3.U:
2840 This variable conditionally defines the HAS_OPEN3 manifest
2842 constant, which indicates to the C program that the 3 argument
2843 version of the open(2) function is available.
2844 "d_pathconf"
2846 From d_pathconf.U:
2847 This variable conditionally defines the "HAS_PATHCONF" symbol,
2849 which indicates to the C program that the pathconf() routine is
2850 available to determine file-system related limits and options
2851 associated with a given filename.
2852 "d_pause"
2854 From d_pause.U:
2855 This variable conditionally defines the "HAS_PAUSE" symbol, which
2857 indicates to the C program that the pause() routine is available to
2858 suspend a process until a signal is received.
2859 "d_perl_otherlibdirs"
2861 From otherlibdirs.U:
2862 This variable conditionally defines "PERL_OTHERLIBDIRS", which
2864 contains a colon-separated set of paths for the perl binary to
2865 include in @"INC". See also otherlibdirs.
2866 "d_phostname"
2868 From d_gethname.U:
2869 This variable conditionally defines the "HAS_PHOSTNAME" symbol,
2871 which contains the shell command which, when fed to popen(), may be
2872 used to derive the host name.
2873 "d_pipe"
2875 From d_pipe.U:
2876 This variable conditionally defines the "HAS_PIPE" symbol, which
2878 indicates to the C program that the pipe() routine is available to
2879 create an inter-process channel.
2880 "d_poll"
2882 From d_poll.U:
2883 This variable conditionally defines the "HAS_POLL" symbol, which
2885 indicates to the C program that the poll() routine is available to
2886 poll active file descriptors.
2887 "d_portable"
2889 From d_portable.U:
2890 This variable conditionally defines the "PORTABLE" symbol, which
2892 indicates to the C program that it should not assume that it is
2893 running on the machine it was compiled on.
2894 "d_prctl"
2896 From d_prctl.U:
2897 This variable conditionally defines the "HAS_PRCTL" symbol, which
2899 indicates to the C program that the prctl() routine is available.
2900 Note that there are at least two prctl variants: Linux and Irix.
2901 While they are somewhat similar, they are incompatible.
2902 "d_prctl_set_name"
2904 From d_prctl.U:
2905 This variable conditionally defines the "HAS_PRCTL_SET_NAME"
2907 symbol, which indicates to the C program that the prctl() routine
2908 supports the "PR_SET_NAME" option.
2909 "d_PRId64"
2911 From quadfio.U:
2912 This variable conditionally defines the PERL_PRId64 symbol, which
2914 indicates that stdio has a symbol to print 64-bit decimal numbers.
2915 "d_PRIeldbl"
2917 From longdblfio.U:
2918 This variable conditionally defines the PERL_PRIfldbl symbol, which
2920 indicates that stdio has a symbol to print long doubles.
2921 "d_PRIEUldbl"
2923 From longdblfio.U:
2924 This variable conditionally defines the PERL_PRIfldbl symbol, which
2926 indicates that stdio has a symbol to print long doubles. The "U"
2927 in the name is to separate this from d_PRIeldbl so that even case-
2928 blind systems can see the difference.
2929 "d_PRIfldbl"
2931 From longdblfio.U:
2932 This variable conditionally defines the PERL_PRIfldbl symbol, which
2934 indicates that stdio has a symbol to print long doubles.
2935 "d_PRIFUldbl"
2937 From longdblfio.U:
2938 This variable conditionally defines the PERL_PRIfldbl symbol, which
2940 indicates that stdio has a symbol to print long doubles. The "U"
2941 in the name is to separate this from d_PRIfldbl so that even case-
2942 blind systems can see the difference.
2943 "d_PRIgldbl"
2945 From longdblfio.U:
2946 This variable conditionally defines the PERL_PRIfldbl symbol, which
2948 indicates that stdio has a symbol to print long doubles.
2949 "d_PRIGUldbl"
2951 From longdblfio.U:
2952 This variable conditionally defines the PERL_PRIfldbl symbol, which
2954 indicates that stdio has a symbol to print long doubles. The "U"
2955 in the name is to separate this from d_PRIgldbl so that even case-
2956 blind systems can see the difference.
2957 "d_PRIi64"
2959 From quadfio.U:
2960 This variable conditionally defines the PERL_PRIi64 symbol, which
2962 indicates that stdio has a symbol to print 64-bit decimal numbers.
2963 "d_printf_format_null"
2965 From d_attribut.U:
2966 This variable conditionally defines "PRINTF_FORMAT_NULL_OK", which
2968 indicates the C compiler allows printf-like formats to be null.
2969 "d_PRIo64"
2971 From quadfio.U:
2972 This variable conditionally defines the PERL_PRIo64 symbol, which
2974 indicates that stdio has a symbol to print 64-bit octal numbers.
2975 "d_PRIu64"
2977 From quadfio.U:
2978 This variable conditionally defines the PERL_PRIu64 symbol, which
2980 indicates that stdio has a symbol to print 64-bit unsigned decimal
2981 numbers.
2982 "d_PRIx64"
2984 From quadfio.U:
2985 This variable conditionally defines the PERL_PRIx64 symbol, which
2987 indicates that stdio has a symbol to print 64-bit hexadecimal
2988 numbers.
2989 "d_PRIXU64"
2991 From quadfio.U:
2992 This variable conditionally defines the PERL_PRIXU64 symbol, which
2994 indicates that stdio has a symbol to print 64-bit hExADECimAl
2995 numbers. The "U" in the name is to separate this from d_PRIx64 so
2996 that even case-blind systems can see the difference.
2997 "d_procselfexe"
2999 From d_procselfexe.U:
3000 Defined if $procselfexe is symlink to the absolute pathname of the
3002 executing program.
3003 "d_pseudofork"
3005 From d_vfork.U:
3006 This variable conditionally defines the "HAS_PSEUDOFORK" symbol,
3008 which indicates that an emulation of the fork routine is available.
3009 "d_pthread_atfork"
3011 From d_pthread_atfork.U:
3012 This variable conditionally defines the "HAS_PTHREAD_ATFORK"
3014 symbol, which indicates to the C program that the pthread_atfork()
3015 routine is available.
3016 "d_pthread_attr_setscope"
3018 From d_pthread_attr_ss.U:
3019 This variable conditionally defines "HAS_PTHREAD_ATTR_SETSCOPE" if
3021 pthread_attr_setscope() is available to set the contention scope
3022 attribute of a thread attribute object.
3023 "d_pthread_yield"
3025 From d_pthread_y.U:
3026 This variable conditionally defines the "HAS_PTHREAD_YIELD" symbol
3028 if the pthread_yield routine is available to yield the execution of
3029 the current thread.
3030 "d_ptrdiff_t"
3032 From d_ptrdiff_t.U:
3033 This symbol will be defined if the C compiler supports ptrdiff_t.
3035 "d_pwage"
3037 From i_pwd.U:
3038 This variable conditionally defines "PWAGE", which indicates that
3040 struct passwd contains pw_age.
3041 "d_pwchange"
3043 From i_pwd.U:
3044 This variable conditionally defines "PWCHANGE", which indicates
3046 that struct passwd contains pw_change.
3047 "d_pwclass"
3049 From i_pwd.U:
3050 This variable conditionally defines "PWCLASS", which indicates that
3052 struct passwd contains pw_class.
3053 "d_pwcomment"
3055 From i_pwd.U:
3056 This variable conditionally defines "PWCOMMENT", which indicates
3058 that struct passwd contains pw_comment.
3059 "d_pwexpire"
3061 From i_pwd.U:
3062 This variable conditionally defines "PWEXPIRE", which indicates
3064 that struct passwd contains pw_expire.
3065 "d_pwgecos"
3067 From i_pwd.U:
3068 This variable conditionally defines "PWGECOS", which indicates that
3070 struct passwd contains pw_gecos.
3071 "d_pwpasswd"
3073 From i_pwd.U:
3074 This variable conditionally defines "PWPASSWD", which indicates
3076 that struct passwd contains pw_passwd.
3077 "d_pwquota"
3079 From i_pwd.U:
3080 This variable conditionally defines "PWQUOTA", which indicates that
3082 struct passwd contains pw_quota.
3083 "d_qgcvt"
3085 From d_qgcvt.U:
3086 This variable conditionally defines the "HAS_QGCVT" symbol, which
3088 indicates to the C program that the qgcvt() routine is available.
3089 "d_quad"
3091 From quadtype.U:
3092 This variable, if defined, tells that there's a 64-bit integer
3094 type, quadtype.
3095 "d_querylocale"
3097 From d_newlocale.U:
3098 This variable conditionally defines the "HAS_QUERYLOCALE" symbol,
3100 which indicates to the C program that the querylocale() routine is
3101 available to return the name of the locale for a category mask.
3102 "d_random_r"
3104 From d_random_r.U:
3105 This variable conditionally defines the "HAS_RANDOM_R" symbol,
3107 which indicates to the C program that the random_r() routine is
3108 available.
3109 "d_re_comp"
3111 From d_regcmp.U:
3112 This variable conditionally defines the "HAS_RECOMP" symbol, which
3114 indicates to the C program that the re_comp() routine is available
3115 for regular patern matching (usally on "BSD"). If so, it is likely
3116 that re_exec() exists.
3117 "d_readdir"
3119 From d_readdir.U:
3120 This variable conditionally defines "HAS_READDIR" if readdir() is
3122 available to read directory entries.
3123 "d_readdir64_r"
3125 From d_readdir64_r.U:
3126 This variable conditionally defines the HAS_READDIR64_R symbol,
3128 which indicates to the C program that the readdir64_r() routine is
3129 available.
3130 "d_readdir_r"
3132 From d_readdir_r.U:
3133 This variable conditionally defines the "HAS_READDIR_R" symbol,
3135 which indicates to the C program that the readdir_r() routine is
3136 available.
3137 "d_readlink"
3139 From d_readlink.U:
3140 This variable conditionally defines the "HAS_READLINK" symbol,
3142 which indicates to the C program that the readlink() routine is
3143 available to read the value of a symbolic link.
3144 "d_readv"
3146 From d_readv.U:
3147 This variable conditionally defines the "HAS_READV" symbol, which
3149 indicates to the C program that the readv() routine is available.
3150 "d_recvmsg"
3152 From d_recvmsg.U:
3153 This variable conditionally defines the "HAS_RECVMSG" symbol, which
3155 indicates to the C program that the recvmsg() routine is available.
3156 "d_regcmp"
3158 From d_regcmp.U:
3159 This variable conditionally defines the "HAS_REGCMP" symbol, which
3161 indicates to the C program that the regcmp() routine is available
3162 for regular patern matching (usally on System V).
3163 "d_regcomp"
3165 From d_regcmp.U:
3166 This variable conditionally defines the "HAS_REGCOMP" symbol, which
3168 indicates to the C program that the regcomp() routine is available
3169 for regular patern matching (usally on POSIX.2 conforming systems).
3170 "d_remainder"
3172 From d_remainder.U:
3173 This variable conditionally defines the "HAS_REMAINDER" symbol,
3175 which indicates to the C program that the remainder() routine is
3176 available.
3177 "d_remquo"
3179 From d_remquo.U:
3180 This variable conditionally defines the "HAS_REMQUO" symbol, which
3182 indicates to the C program that the remquo() routine is available.
3183 "d_rename"
3185 From d_rename.U:
3186 This variable conditionally defines the "HAS_RENAME" symbol, which
3188 indicates to the C program that the rename() routine is available
3189 to rename files.
3190 "d_rewinddir"
3192 From d_readdir.U:
3193 This variable conditionally defines "HAS_REWINDDIR" if rewinddir()
3195 is available.
3196 "d_rint"
3198 From d_rint.U:
3199 This variable conditionally defines the "HAS_RINT" symbol, which
3201 indicates to the C program that the rint() routine is available.
3202 "d_rmdir"
3204 From d_rmdir.U:
3205 This variable conditionally defines "HAS_RMDIR" if rmdir() is
3207 available to remove directories.
3208 "d_round"
3210 From d_round.U:
3211 This variable conditionally defines the "HAS_ROUND" symbol, which
3213 indicates to the C program that the round() routine is available.
3214 "d_safebcpy"
3216 From d_safebcpy.U:
3217 This variable conditionally defines the "HAS_SAFE_BCOPY" symbol if
3219 the bcopy() routine can do overlapping copies. Normally, you
3220 should probably use memmove().
3221 "d_safemcpy"
3223 From d_safemcpy.U:
3224 This variable conditionally defines the "HAS_SAFE_MEMCPY" symbol if
3226 the memcpy() routine can do overlapping copies. For overlapping
3227 copies, memmove() should be used, if available.
3228 "d_sanemcmp"
3230 From d_sanemcmp.U:
3231 This variable conditionally defines the "HAS_SANE_MEMCMP" symbol if
3233 the memcpy() routine is available and can be used to compare
3234 relative magnitudes of chars with their high bits set.
3235 "d_sbrkproto"
3237 From d_sbrkproto.U:
3238 This variable conditionally defines the "HAS_SBRK_PROTO" symbol,
3240 which indicates to the C program that the system provides a
3241 prototype for the sbrk() function. Otherwise, it is up to the
3242 program to supply one.
3243 "d_scalbn"
3245 From d_scalbn.U:
3246 This variable conditionally defines the "HAS_SCALBN" symbol, which
3248 indicates to the C program that the scalbn() routine is available.
3249 "d_scalbnl"
3251 From d_scalbnl.U:
3252 This variable conditionally defines the "HAS_SCALBNL" symbol, which
3254 indicates to the C program that the scalbnl() routine is available.
3255 If ilogbl is also present we can emulate frexpl.
3256 "d_sched_yield"
3258 From d_pthread_y.U:
3259 This variable conditionally defines the "HAS_SCHED_YIELD" symbol if
3261 the sched_yield routine is available to yield the execution of the
3262 current thread.
3263 "d_scm_rights"
3265 From d_socket.U:
3266 This variable conditionally defines the "HAS_SCM_RIGHTS" symbol,
3268 which indicates that the "SCM_RIGHTS" is available. #ifdef is not
3269 enough because it may be an enum, glibc has been known to do this.
3270 "d_SCNfldbl"
3272 From longdblfio.U:
3273 This variable conditionally defines the PERL_PRIfldbl symbol, which
3275 indicates that stdio has a symbol to scan long doubles.
3276 "d_seekdir"
3278 From d_readdir.U:
3279 This variable conditionally defines "HAS_SEEKDIR" if seekdir() is
3281 available.
3282 "d_select"
3284 From d_select.U:
3285 This variable conditionally defines "HAS_SELECT" if select() is
3287 available to select active file descriptors. A <sys/time.h>
3288 inclusion may be necessary for the timeout field.
3289 "d_sem"
3291 From d_sem.U:
3292 This variable conditionally defines the "HAS_SEM" symbol, which
3294 indicates that the entire sem*(2) library is present.
3295 "d_semctl"
3297 From d_semctl.U:
3298 This variable conditionally defines the "HAS_SEMCTL" symbol, which
3300 indicates to the C program that the semctl() routine is available.
3301 "d_semctl_semid_ds"
3303 From d_union_semun.U:
3304 This variable conditionally defines "USE_SEMCTL_SEMID_DS", which
3306 indicates that struct semid_ds * is to be used for semctl
3307 "IPC_STAT".
3308 "d_semctl_semun"
3310 From d_union_semun.U:
3311 This variable conditionally defines "USE_SEMCTL_SEMUN", which
3313 indicates that union semun is to be used for semctl "IPC_STAT".
3314 "d_semget"
3316 From d_semget.U:
3317 This variable conditionally defines the "HAS_SEMGET" symbol, which
3319 indicates to the C program that the semget() routine is available.
3320 "d_semop"
3322 From d_semop.U:
3323 This variable conditionally defines the "HAS_SEMOP" symbol, which
3325 indicates to the C program that the semop() routine is available.
3326 "d_sendmsg"
3328 From d_sendmsg.U:
3329 This variable conditionally defines the "HAS_SENDMSG" symbol, which
3331 indicates to the C program that the sendmsg() routine is available.
3332 "d_setegid"
3334 From d_setegid.U:
3335 This variable conditionally defines the "HAS_SETEGID" symbol, which
3337 indicates to the C program that the setegid() routine is available
3338 to change the effective gid of the current program.
3339 "d_seteuid"
3341 From d_seteuid.U:
3342 This variable conditionally defines the "HAS_SETEUID" symbol, which
3344 indicates to the C program that the seteuid() routine is available
3345 to change the effective uid of the current program.
3346 "d_setgrent"
3348 From d_setgrent.U:
3349 This variable conditionally defines the "HAS_SETGRENT" symbol,
3351 which indicates to the C program that the setgrent() routine is
3352 available for initializing sequential access to the group database.
3353 "d_setgrent_r"
3355 From d_setgrent_r.U:
3356 This variable conditionally defines the "HAS_SETGRENT_R" symbol,
3358 which indicates to the C program that the setgrent_r() routine is
3359 available.
3360 "d_setgrps"
3362 From d_setgrps.U:
3363 This variable conditionally defines the "HAS_SETGROUPS" symbol,
3365 which indicates to the C program that the setgroups() routine is
3366 available to set the list of process groups.
3367 "d_sethent"
3369 From d_sethent.U:
3370 This variable conditionally defines "HAS_SETHOSTENT" if
3372 sethostent() is available.
3373 "d_sethostent_r"
3375 From d_sethostent_r.U:
3376 This variable conditionally defines the "HAS_SETHOSTENT_R" symbol,
3378 which indicates to the C program that the sethostent_r() routine is
3379 available.
3380 "d_setitimer"
3382 From d_setitimer.U:
3383 This variable conditionally defines the "HAS_SETITIMER" symbol,
3385 which indicates to the C program that the setitimer() routine is
3386 available.
3387 "d_setlinebuf"
3389 From d_setlnbuf.U:
3390 This variable conditionally defines the "HAS_SETLINEBUF" symbol,
3392 which indicates to the C program that the setlinebuf() routine is
3393 available to change stderr or stdout from block-buffered or
3394 unbuffered to a line-buffered mode.
3395 "d_setlocale"
3397 From d_setlocale.U:
3398 This variable conditionally defines "HAS_SETLOCALE" if setlocale()
3400 is available to handle locale-specific ctype implementations.
3401 "d_setlocale_r"
3403 From d_setlocale_r.U:
3404 This variable conditionally defines the "HAS_SETLOCALE_R" symbol,
3406 which indicates to the C program that the setlocale_r() routine is
3407 available.
3408 "d_setnent"
3410 From d_setnent.U:
3411 This variable conditionally defines "HAS_SETNETENT" if setnetent()
3413 is available.
3414 "d_setnetent_r"
3416 From d_setnetent_r.U:
3417 This variable conditionally defines the "HAS_SETNETENT_R" symbol,
3419 which indicates to the C program that the setnetent_r() routine is
3420 available.
3421 "d_setpent"
3423 From d_setpent.U:
3424 This variable conditionally defines "HAS_SETPROTOENT" if
3426 setprotoent() is available.
3427 "d_setpgid"
3429 From d_setpgid.U:
3430 This variable conditionally defines the "HAS_SETPGID" symbol if the
3432 setpgid(pid, gpid) function is available to set process group "ID".
3433 "d_setpgrp"
3435 From d_setpgrp.U:
3436 This variable conditionally defines "HAS_SETPGRP" if setpgrp() is
3438 available to set the current process group.
3439 "d_setpgrp2"
3441 From d_setpgrp2.U:
3442 This variable conditionally defines the HAS_SETPGRP2 symbol, which
3444 indicates to the C program that the setpgrp2() (as in DG/"UX")
3445 routine is available to set the current process group.
3446 "d_setprior"
3448 From d_setprior.U:
3449 This variable conditionally defines "HAS_SETPRIORITY" if
3451 setpriority() is available to set a process's priority.
3452 "d_setproctitle"
3454 From d_setproctitle.U:
3455 This variable conditionally defines the "HAS_SETPROCTITLE" symbol,
3457 which indicates to the C program that the setproctitle() routine is
3458 available.
3459 "d_setprotoent_r"
3461 From d_setprotoent_r.U:
3462 This variable conditionally defines the "HAS_SETPROTOENT_R" symbol,
3464 which indicates to the C program that the setprotoent_r() routine
3465 is available.
3466 "d_setpwent"
3468 From d_setpwent.U:
3469 This variable conditionally defines the "HAS_SETPWENT" symbol,
3471 which indicates to the C program that the setpwent() routine is
3472 available for initializing sequential access to the passwd
3473 database.
3474 "d_setpwent_r"
3476 From d_setpwent_r.U:
3477 This variable conditionally defines the "HAS_SETPWENT_R" symbol,
3479 which indicates to the C program that the setpwent_r() routine is
3480 available.
3481 "d_setregid"
3483 From d_setregid.U:
3484 This variable conditionally defines "HAS_SETREGID" if setregid() is
3486 available to change the real and effective gid of the current
3487 process.
3488 "d_setresgid"
3490 From d_setregid.U:
3491 This variable conditionally defines "HAS_SETRESGID" if setresgid()
3493 is available to change the real, effective and saved gid of the
3494 current process.
3495 "d_setresuid"
3497 From d_setreuid.U:
3498 This variable conditionally defines "HAS_SETREUID" if setresuid()
3500 is available to change the real, effective and saved uid of the
3501 current process.
3502 "d_setreuid"
3504 From d_setreuid.U:
3505 This variable conditionally defines "HAS_SETREUID" if setreuid() is
3507 available to change the real and effective uid of the current
3508 process.
3509 "d_setrgid"
3511 From d_setrgid.U:
3512 This variable conditionally defines the "HAS_SETRGID" symbol, which
3514 indicates to the C program that the setrgid() routine is available
3515 to change the real gid of the current program.
3516 "d_setruid"
3518 From d_setruid.U:
3519 This variable conditionally defines the "HAS_SETRUID" symbol, which
3521 indicates to the C program that the setruid() routine is available
3522 to change the real uid of the current program.
3523 "d_setsent"
3525 From d_setsent.U:
3526 This variable conditionally defines "HAS_SETSERVENT" if
3528 setservent() is available.
3529 "d_setservent_r"
3531 From d_setservent_r.U:
3532 This variable conditionally defines the "HAS_SETSERVENT_R" symbol,
3534 which indicates to the C program that the setservent_r() routine is
3535 available.
3536 "d_setsid"
3538 From d_setsid.U:
3539 This variable conditionally defines "HAS_SETSID" if setsid() is
3541 available to set the process group "ID".
3542 "d_setvbuf"
3544 From d_setvbuf.U:
3545 This variable conditionally defines the "HAS_SETVBUF" symbol, which
3547 indicates to the C program that the setvbuf() routine is available
3548 to change buffering on an open stdio stream.
3549 "d_shm"
3551 From d_shm.U:
3552 This variable conditionally defines the "HAS_SHM" symbol, which
3554 indicates that the entire shm*(2) library is present.
3555 "d_shmat"
3557 From d_shmat.U:
3558 This variable conditionally defines the "HAS_SHMAT" symbol, which
3560 indicates to the C program that the shmat() routine is available.
3561 "d_shmatprototype"
3563 From d_shmat.U:
3564 This variable conditionally defines the "HAS_SHMAT_PROTOTYPE"
3566 symbol, which indicates that sys/shm.h has a prototype for shmat.
3567 "d_shmctl"
3569 From d_shmctl.U:
3570 This variable conditionally defines the "HAS_SHMCTL" symbol, which
3572 indicates to the C program that the shmctl() routine is available.
3573 "d_shmdt"
3575 From d_shmdt.U:
3576 This variable conditionally defines the "HAS_SHMDT" symbol, which
3578 indicates to the C program that the shmdt() routine is available.
3579 "d_shmget"
3581 From d_shmget.U:
3582 This variable conditionally defines the "HAS_SHMGET" symbol, which
3584 indicates to the C program that the shmget() routine is available.
3585 "d_sigaction"
3587 From d_sigaction.U:
3588 This variable conditionally defines the "HAS_SIGACTION" symbol,
3590 which indicates that the Vr4 sigaction() routine is available.
3591 "d_siginfo_si_addr"
3593 From d_siginfo_si.U:
3594 This variable conditionally defines the "HAS_SIGINFO_SI_ADDR"
3596 symbol, which indicates that the siginfo_t struct has the si_addr
3597 member.
3598 "d_siginfo_si_band"
3600 From d_siginfo_si.U:
3601 This variable conditionally defines the "HAS_SIGINFO_SI_BAND"
3603 symbol, which indicates that the siginfo_t struct has the si_band
3604 member.
3605 "d_siginfo_si_errno"
3607 From d_siginfo_si.U:
3608 This variable conditionally defines the "HAS_SIGINFO_SI_ERRNO"
3610 symbol, which indicates that the siginfo_t struct has the si_errno
3611 member.
3612 "d_siginfo_si_fd"
3614 From d_siginfo_si.U:
3615 This variable conditionally defines the "HAS_SIGINFO_SI_FD" symbol,
3617 which indicates that the siginfo_t struct has the si_fd member.
3618 "d_siginfo_si_pid"
3620 From d_siginfo_si.U:
3621 This variable conditionally defines the "HAS_SIGINFO_SI_PID"
3623 symbol, which indicates that the siginfo_t struct has the si_pid
3624 member.
3625 "d_siginfo_si_status"
3627 From d_siginfo_si.U:
3628 This variable conditionally defines the "HAS_SIGINFO_SI_STATUS"
3630 symbol, which indicates that the siginfo_t struct has the si_status
3631 member.
3632 "d_siginfo_si_uid"
3634 From d_siginfo_si.U:
3635 This variable conditionally defines the "HAS_SIGINFO_SI_UID"
3637 symbol, which indicates that the siginfo_t struct has the si_uid
3638 member.
3639 "d_siginfo_si_value"
3641 From d_siginfo_si.U:
3642 This variable conditionally defines the "HAS_SIGINFO_SI_VALUE"
3644 symbol, which indicates that the siginfo_t struct has the si_value
3645 member.
3646 "d_signbit"
3648 From d_signbit.U:
3649 This variable conditionally defines the "HAS_SIGNBIT" symbol, which
3651 indicates to the C program that the signbit() routine is available
3652 and safe to use with perl's intern "NV" type.
3653 "d_sigprocmask"
3655 From d_sigprocmask.U:
3656 This variable conditionally defines "HAS_SIGPROCMASK" if
3658 sigprocmask() is available to examine or change the signal mask of
3659 the calling process.
3660 "d_sigsetjmp"
3662 From d_sigsetjmp.U:
3663 This variable conditionally defines the "HAS_SIGSETJMP" symbol,
3665 which indicates that the sigsetjmp() routine is available to call
3666 setjmp() and optionally save the process's signal mask.
3667 "d_sin6_scope_id"
3669 From d_socket.U:
3670 This variable conditionally defines the HAS_SIN6_SCOPE_ID symbol,
3672 which indicates that a struct sockaddr_in6 structure has the
3673 sin6_scope_id member.
3674 "d_sitearch"
3676 From sitearch.U:
3677 This variable conditionally defines "SITEARCH" to hold the pathname
3679 of architecture-dependent library files for $package. If $sitearch
3680 is the same as $archlib, then this is set to undef.
3681 "d_snprintf"
3683 From d_snprintf.U:
3684 This variable conditionally defines the "HAS_SNPRINTF" symbol,
3686 which indicates to the C program that the snprintf () library
3687 function is available.
3688 "d_sockaddr_in6"
3690 From d_socket.U:
3691 This variable conditionally defines the HAS_SOCKADDR_IN6 symbol,
3693 which indicates the availability of a struct sockaddr_in6.
3694 "d_sockaddr_sa_len"
3696 From d_socket.U:
3697 This variable conditionally defines the "HAS_SOCKADDR_SA_LEN"
3699 symbol, which indicates that a struct sockaddr structure has the
3700 sa_len member.
3701 "d_sockatmark"
3703 From d_sockatmark.U:
3704 This variable conditionally defines the "HAS_SOCKATMARK" symbol,
3706 which indicates to the C program that the sockatmark() routine is
3707 available.
3708 "d_sockatmarkproto"
3710 From d_sockatmarkproto.U:
3711 This variable conditionally defines the "HAS_SOCKATMARK_PROTO"
3713 symbol, which indicates to the C program that the system provides a
3714 prototype for the sockatmark() function. Otherwise, it is up to
3715 the program to supply one.
3716 "d_socket"
3718 From d_socket.U:
3719 This variable conditionally defines "HAS_SOCKET", which indicates
3721 that the "BSD" socket interface is supported.
3722 "d_socklen_t"
3724 From d_socklen_t.U:
3725 This symbol will be defined if the C compiler supports socklen_t.
3727 "d_sockpair"
3729 From d_socket.U:
3730 This variable conditionally defines the "HAS_SOCKETPAIR" symbol,
3732 which indicates that the "BSD" socketpair() is supported.
3733 "d_socks5_init"
3735 From d_socks5_init.U:
3736 This variable conditionally defines the HAS_SOCKS5_INIT symbol,
3738 which indicates to the C program that the socks5_init() routine is
3739 available.
3740 "d_sprintf_returns_strlen"
3742 From d_sprintf_len.U:
3743 This variable defines whether sprintf returns the length of the
3745 string (as per the "ANSI" spec). Some C libraries retain
3746 compatibility with pre-"ANSI" C and return a pointer to the passed
3747 in buffer; for these this variable will be undef.
3748 "d_sqrtl"
3750 From d_sqrtl.U:
3751 This variable conditionally defines the "HAS_SQRTL" symbol, which
3753 indicates to the C program that the sqrtl() routine is available.
3754 "d_srand48_r"
3756 From d_srand48_r.U:
3757 This variable conditionally defines the HAS_SRAND48_R symbol, which
3759 indicates to the C program that the srand48_r() routine is
3760 available.
3761 "d_srandom_r"
3763 From d_srandom_r.U:
3764 This variable conditionally defines the "HAS_SRANDOM_R" symbol,
3766 which indicates to the C program that the srandom_r() routine is
3767 available.
3768 "d_sresgproto"
3770 From d_sresgproto.U:
3771 This variable conditionally defines the "HAS_SETRESGID_PROTO"
3773 symbol, which indicates to the C program that the system provides a
3774 prototype for the setresgid() function. Otherwise, it is up to the
3775 program to supply one.
3776 "d_sresuproto"
3778 From d_sresuproto.U:
3779 This variable conditionally defines the "HAS_SETRESUID_PROTO"
3781 symbol, which indicates to the C program that the system provides a
3782 prototype for the setresuid() function. Otherwise, it is up to the
3783 program to supply one.
3784 "d_stat"
3786 From d_stat.U:
3787 This variable conditionally defines "HAS_STAT" if stat() is
3789 available to get file status.
3790 "d_statblks"
3792 From d_statblks.U:
3793 This variable conditionally defines "USE_STAT_BLOCKS" if this
3795 system has a stat structure declaring st_blksize and st_blocks.
3796 "d_statfs_f_flags"
3798 From d_statfs_f_flags.U:
3799 This variable conditionally defines the "HAS_STRUCT_STATFS_F_FLAGS"
3801 symbol, which indicates to struct statfs from has f_flags member.
3802 This kind of struct statfs is coming from sys/mount.h ("BSD"), not
3803 from sys/statfs.h ("SYSV").
3804 "d_statfs_s"
3806 From d_statfs_s.U:
3807 This variable conditionally defines the "HAS_STRUCT_STATFS" symbol,
3809 which indicates that the struct statfs is supported.
3810 "d_static_inline"
3812 From d_static_inline.U:
3813 This variable conditionally defines the "HAS_STATIC_INLINE" symbol,
3815 which indicates that the C compiler supports C99-style static
3816 inline. That is, the function can't be called from another
3817 translation unit.
3818 "d_statvfs"
3820 From d_statvfs.U:
3821 This variable conditionally defines the "HAS_STATVFS" symbol, which
3823 indicates to the C program that the statvfs() routine is available.
3824 "d_stdio_cnt_lval"
3826 From d_stdstdio.U:
3827 This variable conditionally defines "STDIO_CNT_LVALUE" if the
3829 "FILE_cnt" macro can be used as an lvalue.
3830 "d_stdio_ptr_lval"
3832 From d_stdstdio.U:
3833 This variable conditionally defines "STDIO_PTR_LVALUE" if the
3835 "FILE_ptr" macro can be used as an lvalue.
3836 "d_stdio_ptr_lval_nochange_cnt"
3838 From d_stdstdio.U:
3839 This symbol is defined if using the "FILE_ptr" macro as an lvalue
3841 to increase the pointer by n leaves File_cnt(fp) unchanged.
3842 "d_stdio_ptr_lval_sets_cnt"
3844 From d_stdstdio.U:
3845 This symbol is defined if using the "FILE_ptr" macro as an lvalue
3847 to increase the pointer by n has the side effect of decreasing the
3848 value of File_cnt(fp) by n.
3849 "d_stdio_stream_array"
3851 From stdio_streams.U:
3852 This variable tells whether there is an array holding the stdio
3854 streams.
3855 "d_stdiobase"
3857 From d_stdstdio.U:
3858 This variable conditionally defines "USE_STDIO_BASE" if this system
3860 has a "FILE" structure declaring a usable _base field (or
3861 equivalent) in stdio.h.
3862 "d_stdstdio"
3864 From d_stdstdio.U:
3865 This variable conditionally defines "USE_STDIO_PTR" if this system
3867 has a "FILE" structure declaring usable _ptr and _cnt fields (or
3868 equivalent) in stdio.h.
3869 "d_strchr"
3871 From d_strchr.U:
3872 This variable conditionally defines "HAS_STRCHR" if strchr() and
3874 strrchr() are available for string searching.
3875 "d_strcoll"
3877 From d_strcoll.U:
3878 This variable conditionally defines "HAS_STRCOLL" if strcoll() is
3880 available to compare strings using collating information.
3881 "d_strctcpy"
3883 From d_strctcpy.U:
3884 This variable conditionally defines the "USE_STRUCT_COPY" symbol,
3886 which indicates to the C program that this C compiler knows how to
3887 copy structures.
3888 "d_strerrm"
3890 From d_strerror.U:
3891 This variable holds what Strerror is defined as to translate an
3893 error code condition into an error message string. It could be
3894 "strerror" or a more "complex" macro emulating strerror with
3895 sys_errlist[], or the "unknown" string when both strerror and
3896 sys_errlist are missing.
3897 "d_strerror"
3899 From d_strerror.U:
3900 This variable conditionally defines "HAS_STRERROR" if strerror() is
3902 available to translate error numbers to strings.
3903 "d_strerror_l"
3905 From d_strerror_l.U:
3906 This variable conditionally defines the "HAS_STRERROR_L" symbol,
3908 which indicates to the C program that the strerror_l() routine is
3909 available to return the error message for a given errno value in a
3910 particular locale (identified by a locale_t object).
3911 "d_strerror_r"
3913 From d_strerror_r.U:
3914 This variable conditionally defines the "HAS_STRERROR_R" symbol,
3916 which indicates to the C program that the strerror_r() routine is
3917 available.
3918 "d_strftime"
3920 From d_strftime.U:
3921 This variable conditionally defines the "HAS_STRFTIME" symbol,
3923 which indicates to the C program that the strftime() routine is
3924 available.
3925 "d_strlcat"
3927 From d_strlcat.U:
3928 This variable conditionally defines the "HAS_STRLCAT" symbol, which
3930 indicates to the C program that the strlcat () routine is
3931 available.
3932 "d_strlcpy"
3934 From d_strlcpy.U:
3935 This variable conditionally defines the "HAS_STRLCPY" symbol, which
3937 indicates to the C program that the strlcpy () routine is
3938 available.
3939 "d_strtod"
3941 From d_strtod.U:
3942 This variable conditionally defines the "HAS_STRTOD" symbol, which
3944 indicates to the C program that the strtod() routine is available
3945 to provide better numeric string conversion than atof().
3946 "d_strtol"
3948 From d_strtol.U:
3949 This variable conditionally defines the "HAS_STRTOL" symbol, which
3951 indicates to the C program that the strtol() routine is available
3952 to provide better numeric string conversion than atoi() and
3953 friends.
3954 "d_strtold"
3956 From d_strtold.U:
3957 This variable conditionally defines the "HAS_STRTOLD" symbol, which
3959 indicates to the C program that the strtold() routine is available.
3960 "d_strtoll"
3962 From d_strtoll.U:
3963 This variable conditionally defines the "HAS_STRTOLL" symbol, which
3965 indicates to the C program that the strtoll() routine is available.
3966 "d_strtoq"
3968 From d_strtoq.U:
3969 This variable conditionally defines the "HAS_STRTOQ" symbol, which
3971 indicates to the C program that the strtoq() routine is available.
3972 "d_strtoul"
3974 From d_strtoul.U:
3975 This variable conditionally defines the "HAS_STRTOUL" symbol, which
3977 indicates to the C program that the strtoul() routine is available
3978 to provide conversion of strings to unsigned long.
3979 "d_strtoull"
3981 From d_strtoull.U:
3982 This variable conditionally defines the "HAS_STRTOULL" symbol,
3984 which indicates to the C program that the strtoull() routine is
3985 available.
3986 "d_strtouq"
3988 From d_strtouq.U:
3989 This variable conditionally defines the "HAS_STRTOUQ" symbol, which
3991 indicates to the C program that the strtouq() routine is available.
3992 "d_strxfrm"
3994 From d_strxfrm.U:
3995 This variable conditionally defines "HAS_STRXFRM" if strxfrm() is
3997 available to transform strings.
3998 "d_suidsafe"
4000 From d_dosuid.U:
4001 This variable conditionally defines "SETUID_SCRIPTS_ARE_SECURE_NOW"
4003 if setuid scripts can be secure. This test looks in /dev/fd/.
4004 "d_symlink"
4006 From d_symlink.U:
4007 This variable conditionally defines the "HAS_SYMLINK" symbol, which
4009 indicates to the C program that the symlink() routine is available
4010 to create symbolic links.
4011 "d_syscall"
4013 From d_syscall.U:
4014 This variable conditionally defines "HAS_SYSCALL" if syscall() is
4016 available call arbitrary system calls.
4017 "d_syscallproto"
4019 From d_syscallproto.U:
4020 This variable conditionally defines the "HAS_SYSCALL_PROTO" symbol,
4022 which indicates to the C program that the system provides a
4023 prototype for the syscall() function. Otherwise, it is up to the
4024 program to supply one.
4025 "d_sysconf"
4027 From d_sysconf.U:
4028 This variable conditionally defines the "HAS_SYSCONF" symbol, which
4030 indicates to the C program that the sysconf() routine is available
4031 to determine system related limits and options.
4032 "d_sysernlst"
4034 From d_strerror.U:
4035 This variable conditionally defines "HAS_SYS_ERRNOLIST" if
4037 sys_errnolist[] is available to translate error numbers to the
4038 symbolic name.
4039 "d_syserrlst"
4041 From d_strerror.U:
4042 This variable conditionally defines "HAS_SYS_ERRLIST" if
4044 sys_errlist[] is available to translate error numbers to strings.
4045 "d_system"
4047 From d_system.U:
4048 This variable conditionally defines "HAS_SYSTEM" if system() is
4050 available to issue a shell command.
4051 "d_tcgetpgrp"
4053 From d_tcgtpgrp.U:
4054 This variable conditionally defines the "HAS_TCGETPGRP" symbol,
4056 which indicates to the C program that the tcgetpgrp() routine is
4057 available. to get foreground process group "ID".
4058 "d_tcsetpgrp"
4060 From d_tcstpgrp.U:
4061 This variable conditionally defines the "HAS_TCSETPGRP" symbol,
4063 which indicates to the C program that the tcsetpgrp() routine is
4064 available to set foreground process group "ID".
4065 "d_telldir"
4067 From d_readdir.U:
4068 This variable conditionally defines "HAS_TELLDIR" if telldir() is
4070 available.
4071 "d_telldirproto"
4073 From d_telldirproto.U:
4074 This variable conditionally defines the "HAS_TELLDIR_PROTO" symbol,
4076 which indicates to the C program that the system provides a
4077 prototype for the telldir() function. Otherwise, it is up to the
4078 program to supply one.
4079 "d_tgamma"
4081 From d_tgamma.U:
4082 This variable conditionally defines the "HAS_TGAMMA" symbol, which
4084 indicates to the C program that the tgamma() routine is available
4085 for the gamma function. See also d_lgamma.
4086 "d_time"
4088 From d_time.U:
4089 This variable conditionally defines the "HAS_TIME" symbol, which
4091 indicates that the time() routine exists. The time() routine is
4092 normally provided on "UNIX" systems.
4093 "d_timegm"
4095 From d_timegm.U:
4096 This variable conditionally defines the "HAS_TIMEGM" symbol, which
4098 indicates to the C program that the timegm () routine is available.
4099 "d_times"
4101 From d_times.U:
4102 This variable conditionally defines the "HAS_TIMES" symbol, which
4104 indicates that the times() routine exists. The times() routine is
4105 normally provided on "UNIX" systems. You may have to include
4106 <sys/times.h>.
4107 "d_tm_tm_gmtoff"
4109 From i_time.U:
4110 This variable conditionally defines "HAS_TM_TM_GMTOFF", which
4112 indicates indicates to the C program that the struct tm has the
4113 tm_gmtoff field.
4114 "d_tm_tm_zone"
4116 From i_time.U:
4117 This variable conditionally defines "HAS_TM_TM_ZONE", which
4119 indicates indicates to the C program that the struct tm has the
4120 tm_zone field.
4121 "d_tmpnam_r"
4123 From d_tmpnam_r.U:
4124 This variable conditionally defines the "HAS_TMPNAM_R" symbol,
4126 which indicates to the C program that the tmpnam_r() routine is
4127 available.
4128 "d_trunc"
4130 From d_trunc.U:
4131 This variable conditionally defines the "HAS_TRUNC" symbol, which
4133 indicates to the C program that the trunc() routine is available to
4134 round doubles towards zero.
4135 "d_truncate"
4137 From d_truncate.U:
4138 This variable conditionally defines "HAS_TRUNCATE" if truncate() is
4140 available to truncate files.
4141 "d_truncl"
4143 From d_truncl.U:
4144 This variable conditionally defines the "HAS_TRUNCL" symbol, which
4146 indicates to the C program that the truncl() routine is available
4147 to round long doubles towards zero. If copysignl is also present,
4148 we can emulate modfl.
4149 "d_ttyname_r"
4151 From d_ttyname_r.U:
4152 This variable conditionally defines the "HAS_TTYNAME_R" symbol,
4154 which indicates to the C program that the ttyname_r() routine is
4155 available.
4156 "d_tzname"
4158 From d_tzname.U:
4159 This variable conditionally defines "HAS_TZNAME" if tzname[] is
4161 available to access timezone names.
4162 "d_u32align"
4164 From d_u32align.U:
4165 This variable tells whether you must access character data through
4167 U32-aligned pointers.
4168 "d_ualarm"
4170 From d_ualarm.U:
4171 This variable conditionally defines the "HAS_UALARM" symbol, which
4173 indicates to the C program that the ualarm() routine is available.
4174 "d_umask"
4176 From d_umask.U:
4177 This variable conditionally defines the "HAS_UMASK" symbol, which
4179 indicates to the C program that the umask() routine is available.
4180 to set and get the value of the file creation mask.
4181 "d_uname"
4183 From d_gethname.U:
4184 This variable conditionally defines the "HAS_UNAME" symbol, which
4186 indicates to the C program that the uname() routine may be used to
4187 derive the host name.
4188 "d_union_semun"
4190 From d_union_semun.U:
4191 This variable conditionally defines "HAS_UNION_SEMUN" if the union
4193 semun is defined by including <sys/sem.h>.
4194 "d_unordered"
4196 From d_unordered.U:
4197 This variable conditionally defines the "HAS_UNORDERED" symbol,
4199 which indicates to the C program that the unordered() routine is
4200 available.
4201 "d_unsetenv"
4203 From d_unsetenv.U:
4204 This variable conditionally defines the "HAS_UNSETENV" symbol,
4206 which indicates to the C program that the unsetenv () routine is
4207 available.
4208 "d_uselocale"
4210 From d_newlocale.U:
4211 This variable conditionally defines the "HAS_USELOCALE" symbol,
4213 which indicates to the C program that the uselocale() routine is
4214 available to set the current locale for the calling thread.
4215 "d_usleep"
4217 From d_usleep.U:
4218 This variable conditionally defines "HAS_USLEEP" if usleep() is
4220 available to do high granularity sleeps.
4221 "d_usleepproto"
4223 From d_usleepproto.U:
4224 This variable conditionally defines the "HAS_USLEEP_PROTO" symbol,
4226 which indicates to the C program that the system provides a
4227 prototype for the usleep() function. Otherwise, it is up to the
4228 program to supply one.
4229 "d_ustat"
4231 From d_ustat.U:
4232 This variable conditionally defines "HAS_USTAT" if ustat() is
4234 available to query file system statistics by dev_t.
4235 "d_vendorarch"
4237 From vendorarch.U:
4238 This variable conditionally defined "PERL_VENDORARCH".
4240 "d_vendorbin"
4242 From vendorbin.U:
4243 This variable conditionally defines "PERL_VENDORBIN".
4245 "d_vendorlib"
4247 From vendorlib.U:
4248 This variable conditionally defines "PERL_VENDORLIB".
4250 "d_vendorscript"
4252 From vendorscript.U:
4253 This variable conditionally defines "PERL_VENDORSCRIPT".
4255 "d_vfork"
4257 From d_vfork.U:
4258 This variable conditionally defines the "HAS_VFORK" symbol, which
4260 indicates the vfork() routine is available.
4261 "d_void_closedir"
4263 From d_closedir.U:
4264 This variable conditionally defines "VOID_CLOSEDIR" if closedir()
4266 does not return a value.
4267 "d_voidsig"
4269 From d_voidsig.U:
4270 This variable conditionally defines "VOIDSIG" if this system
4272 declares "void (*signal(...))()" in signal.h. The old way was to
4273 declare it as "int (*signal(...))()".
4274 "d_voidtty"
4276 From i_sysioctl.U:
4277 This variable conditionally defines "USE_IOCNOTTY" to indicate that
4279 the ioctl() call with "TIOCNOTTY" should be used to void tty
4280 association. Otherwise (on "USG" probably), it is enough to close
4281 the standard file descriptors and do a setpgrp().
4282 "d_volatile"
4284 From d_volatile.U:
4285 This variable conditionally defines the "HASVOLATILE" symbol, which
4287 indicates to the C program that this C compiler knows about the
4288 volatile declaration.
4289 "d_vprintf"
4291 From d_vprintf.U:
4292 This variable conditionally defines the "HAS_VPRINTF" symbol, which
4294 indicates to the C program that the vprintf() routine is available
4295 to printf with a pointer to an argument list.
4296 "d_vsnprintf"
4298 From d_snprintf.U:
4299 This variable conditionally defines the "HAS_VSNPRINTF" symbol,
4301 which indicates to the C program that the vsnprintf () library
4302 function is available.
4303 "d_wait4"
4305 From d_wait4.U:
4306 This variable conditionally defines the HAS_WAIT4 symbol, which
4308 indicates the wait4() routine is available.
4309 "d_waitpid"
4311 From d_waitpid.U:
4312 This variable conditionally defines "HAS_WAITPID" if waitpid() is
4314 available to wait for child process.
4315 "d_wcscmp"
4317 From d_wcscmp.U:
4318 This variable conditionally defines the "HAS_WCSCMP" symbol if the
4320 wcscmp() routine is available and can be used to compare wide
4321 character strings.
4322 "d_wcstombs"
4324 From d_wcstombs.U:
4325 This variable conditionally defines the "HAS_WCSTOMBS" symbol,
4327 which indicates to the C program that the wcstombs() routine is
4328 available to convert wide character strings to multibyte strings.
4329 "d_wcsxfrm"
4331 From d_wcsxfrm.U:
4332 This variable conditionally defines the "HAS_WCSXFRM" symbol if the
4334 wcsxfrm() routine is available and can be used to compare wide
4335 character strings.
4336 "d_wctomb"
4338 From d_wctomb.U:
4339 This variable conditionally defines the "HAS_WCTOMB" symbol, which
4341 indicates to the C program that the wctomb() routine is available
4342 to convert a wide character to a multibyte.
4343 "d_writev"
4345 From d_writev.U:
4346 This variable conditionally defines the "HAS_WRITEV" symbol, which
4348 indicates to the C program that the writev() routine is available.
4349 "d_xenix"
4351 From Guess.U:
4352 This variable conditionally defines the symbol "XENIX", which
4354 alerts the C program that it runs under Xenix.
4355 "date"
4357 From Loc.U:
4358 This variable is used internally by Configure to determine the full
4360 pathname (if any) of the date program. After Configure runs, the
4361 value is reset to a plain "date" and is not useful.
4362 "db_hashtype"
4364 From i_db.U:
4365 This variable contains the type of the hash structure element in
4367 the <db.h> header file. In older versions of "DB", it was int,
4368 while in newer ones it is u_int32_t.
4369 "db_prefixtype"
4371 From i_db.U:
4372 This variable contains the type of the prefix structure element in
4374 the <db.h> header file. In older versions of "DB", it was int,
4375 while in newer ones it is size_t.
4376 "db_version_major"
4378 From i_db.U:
4379 This variable contains the major version number of Berkeley "DB"
4381 found in the <db.h> header file.
4382 "db_version_minor"
4384 From i_db.U:
4385 This variable contains the minor version number of Berkeley "DB"
4387 found in the <db.h> header file. For "DB" version 1 this is always
4388 0.
4389 "db_version_patch"
4391 From i_db.U:
4392 This variable contains the patch version number of Berkeley "DB"
4394 found in the <db.h> header file. For "DB" version 1 this is always
4395 0.
4396 "default_inc_excludes_dot"
4398 From defaultincdot.U:
4399 When defined, remove the legacy . from @"INC"
4401 "direntrytype"
4403 From i_dirent.U:
4404 This symbol is set to "struct direct" or "struct dirent" depending
4406 on whether dirent is available or not. You should use this pseudo
4407 type to portably declare your directory entries.
4408 "dlext"
4410 From dlext.U:
4411 This variable contains the extension that is to be used for the
4413 dynamically loaded modules that perl generates.
4414 "dlsrc"
4416 From dlsrc.U:
4417 This variable contains the name of the dynamic loading file that
4419 will be used with the package.
4420 "doubleinfbytes"
4422 From infnan.U:
4423 This variable contains comma-separated list of hexadecimal bytes
4425 for the double precision infinity.
4426 "doublekind"
4428 From longdblfio.U:
4429 This variable, if defined, encodes the type of a double: 1 = "IEEE"
4431 754 32-bit little endian, 2 = "IEEE" 754 32-bit big endian, 3 =
4432 "IEEE" 754 64-bit little endian, 4 = "IEEE" 754 64-bit big endian,
4433 5 = "IEEE" 754 128-bit little endian, 6 = "IEEE" 754 128-bit big
4434 endian, 7 = "IEEE" 754 64-bit mixed endian le-be, 8 = "IEEE" 754
4435 64-bit mixed endian be-le, 9 = "VAX" 32bit little endian F float
4436 format 10 = "VAX" 64bit little endian D float format 11 = "VAX"
4437 64bit little endian G float format 12 = "IBM" 32bit format 13 =
4438 "IBM" 64bit format 14 = Cray 64bit format -1 = unknown format.
4439 "doublemantbits"
4441 From mantbits.U:
4442 This symbol, if defined, tells how many mantissa bits there are in
4444 double precision floating point format. Note that this is usually
4445 "DBL_MANT_DIG" minus one, since with the standard "IEEE" 754
4446 formats "DBL_MANT_DIG" includes the implicit bit which doesn't
4447 really exist.
4448 "doublenanbytes"
4450 From infnan.U:
4451 This variable contains comma-separated list of hexadecimal bytes
4453 for the double precision not-a-number.
4454 "doublesize"
4456 From doublesize.U:
4457 This variable contains the value of the "DOUBLESIZE" symbol, which
4459 indicates to the C program how many bytes there are in a double.
4460 "drand01"
4462 From randfunc.U:
4463 Indicates the macro to be used to generate normalized random
4465 numbers. Uses randfunc, often divided by (double) (((unsigned
4466 long) 1 << randbits)) in order to normalize the result. In C
4467 programs, the macro "Drand01" is mapped to drand01.
4468 "drand48_r_proto"
4470 From d_drand48_r.U:
4471 This variable encodes the prototype of drand48_r. It is zero if
4473 d_drand48_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
4474 of reentr.h if d_drand48_r is defined.
4475 "dtrace"
4477 From usedtrace.U:
4478 This variable holds the location of the dtrace executable.
4480 "dtraceobject"
4482 From dtraceobject.U:
4483 Whether we need to build an object file with the dtrace tool.
4485 "dtracexnolibs"
4487 From dtraceobject.U:
4488 Whether dtrace accepts -xnolibs. If available we call dtrace -h
4490 and dtrace -G with -xnolibs to allow dtrace to run in a jail on
4491 FreeBSD.
4492 "dynamic_ext"
4494 From Extensions.U:
4495 This variable holds a list of "XS" extension files we want to link
4497 dynamically into the package. It is used by Makefile.
4498 e
4500 "eagain"
4501 From nblock_io.U:
4502 This variable bears the symbolic errno code set by read() when no
4504 data is present on the file and non-blocking I/O was enabled
4505 (otherwise, read() blocks naturally).
4506 "ebcdic"
4508 From ebcdic.U:
4509 This variable conditionally defines "EBCDIC" if this system uses
4511 "EBCDIC" encoding.
4512 "echo"
4514 From Loc.U:
4515 This variable is used internally by Configure to determine the full
4517 pathname (if any) of the echo program. After Configure runs, the
4518 value is reset to a plain "echo" and is not useful.
4519 "egrep"
4521 From Loc.U:
4522 This variable is used internally by Configure to determine the full
4524 pathname (if any) of the egrep program. After Configure runs, the
4525 value is reset to a plain "egrep" and is not useful.
4526 "emacs"
4528 From Loc.U:
4529 This variable is defined but not used by Configure. The value is
4531 the empty string and is not useful.
4532 "endgrent_r_proto"
4534 From d_endgrent_r.U:
4535 This variable encodes the prototype of endgrent_r. It is zero if
4537 d_endgrent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4538 macros of reentr.h if d_endgrent_r is defined.
4539 "endhostent_r_proto"
4541 From d_endhostent_r.U:
4542 This variable encodes the prototype of endhostent_r. It is zero if
4544 d_endhostent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4545 macros of reentr.h if d_endhostent_r is defined.
4546 "endnetent_r_proto"
4548 From d_endnetent_r.U:
4549 This variable encodes the prototype of endnetent_r. It is zero if
4551 d_endnetent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4552 macros of reentr.h if d_endnetent_r is defined.
4553 "endprotoent_r_proto"
4555 From d_endprotoent_r.U:
4556 This variable encodes the prototype of endprotoent_r. It is zero
4558 if d_endprotoent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4559 macros of reentr.h if d_endprotoent_r is defined.
4560 "endpwent_r_proto"
4562 From d_endpwent_r.U:
4563 This variable encodes the prototype of endpwent_r. It is zero if
4565 d_endpwent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4566 macros of reentr.h if d_endpwent_r is defined.
4567 "endservent_r_proto"
4569 From d_endservent_r.U:
4570 This variable encodes the prototype of endservent_r. It is zero if
4572 d_endservent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4573 macros of reentr.h if d_endservent_r is defined.
4574 "eunicefix"
4576 From Init.U:
4577 When running under Eunice this variable contains a command which
4579 will convert a shell script to the proper form of text file for it
4580 to be executable by the shell. On other systems it is a no-op.
4581 "exe_ext"
4583 From Unix.U:
4584 This is an old synonym for _exe.
4586 "expr"
4588 From Loc.U:
4589 This variable is used internally by Configure to determine the full
4591 pathname (if any) of the expr program. After Configure runs, the
4592 value is reset to a plain "expr" and is not useful.
4593 "extensions"
4595 From Extensions.U:
4596 This variable holds a list of all extension files (both "XS" and
4598 non-xs) installed with the package. It is propagated to Config.pm
4599 and is typically used to test whether a particular extension is
4600 available.
4601 "extern_C"
4603 From Csym.U:
4604 "ANSI" C requires "extern" where C++ requires 'extern "C"'. This
4606 variable can be used in Configure to do the right thing.
4607 "extras"
4609 From Extras.U:
4610 This variable holds a list of extra modules to install.
4612 f
4614 "fflushall"
4615 From fflushall.U:
4616 This symbol, if defined, tells that to flush all pending stdio
4618 output one must loop through all the stdio file handles stored in
4619 an array and fflush them. Note that if fflushNULL is defined,
4620 fflushall will not even be probed for and will be left undefined.
4621 "fflushNULL"
4623 From fflushall.U:
4624 This symbol, if defined, tells that fflush("NULL") correctly
4626 flushes all pending stdio output without side effects. In
4627 particular, on some platforms calling fflush("NULL") *still*
4628 corrupts "STDIN" if it is a pipe.
4629 "find"
4631 From Loc.U:
4632 This variable is defined but not used by Configure. The value is
4634 the empty string and is not useful.
4635 "firstmakefile"
4637 From Unix.U:
4638 This variable defines the first file searched by make. On unix, it
4640 is makefile (then Makefile). On case-insensitive systems, it might
4641 be something else. This is only used to deal with convoluted make
4642 depend tricks.
4643 "flex"
4645 From Loc.U:
4646 This variable is defined but not used by Configure. The value is
4648 the empty string and is not useful.
4649 "fpossize"
4651 From fpossize.U:
4652 This variable contains the size of a fpostype in bytes.
4654 "fpostype"
4656 From fpostype.U:
4657 This variable defines Fpos_t to be something like fpos_t, long,
4659 uint, or whatever type is used to declare file positions in libc.
4660 "freetype"
4662 From mallocsrc.U:
4663 This variable contains the return type of free(). It is usually
4665 void, but occasionally int.
4666 "from"
4668 From Cross.U:
4669 This variable contains the command used by Configure to copy files
4671 from the target host. Useful and available only during Perl build.
4672 The string ":" if not cross-compiling.
4673 "full_ar"
4675 From Loc_ar.U:
4676 This variable contains the full pathname to "ar", whether or not
4678 the user has specified "portability". This is only used in the
4679 Makefile.SH.
4680 "full_csh"
4682 From d_csh.U:
4683 This variable contains the full pathname to "csh", whether or not
4685 the user has specified "portability". This is only used in the
4686 compiled C program, and we assume that all systems which can share
4687 this executable will have the same full pathname to csh.
4688 "full_sed"
4690 From Loc_sed.U:
4691 This variable contains the full pathname to "sed", whether or not
4693 the user has specified "portability". This is only used in the
4694 compiled C program, and we assume that all systems which can share
4695 this executable will have the same full pathname to sed.
4696 g
4698 "gccansipedantic"
4699 From gccvers.U:
4700 If "GNU" cc (gcc) is used, this variable will enable (if set) the
4702 -ansi and -pedantic ccflags for building core files (through cflags
4703 script). (See Porting/pumpkin.pod for full description).
4704 "gccosandvers"
4706 From gccvers.U:
4707 If "GNU" cc (gcc) is used, this variable holds the operating system
4709 and version used to compile gcc. It is set to '' if not gcc, or if
4710 nothing useful can be parsed as the os version.
4711 "gccversion"
4713 From gccvers.U:
4714 If "GNU" cc (gcc) is used, this variable holds 1 or 2 to indicate
4716 whether the compiler is version 1 or 2. This is used in setting
4717 some of the default cflags. It is set to '' if not gcc.
4718 "getgrent_r_proto"
4720 From d_getgrent_r.U:
4721 This variable encodes the prototype of getgrent_r. It is zero if
4723 d_getgrent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4724 macros of reentr.h if d_getgrent_r is defined.
4725 "getgrgid_r_proto"
4727 From d_getgrgid_r.U:
4728 This variable encodes the prototype of getgrgid_r. It is zero if
4730 d_getgrgid_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4731 macros of reentr.h if d_getgrgid_r is defined.
4732 "getgrnam_r_proto"
4734 From d_getgrnam_r.U:
4735 This variable encodes the prototype of getgrnam_r. It is zero if
4737 d_getgrnam_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4738 macros of reentr.h if d_getgrnam_r is defined.
4739 "gethostbyaddr_r_proto"
4741 From d_gethostbyaddr_r.U:
4742 This variable encodes the prototype of gethostbyaddr_r. It is zero
4744 if d_gethostbyaddr_r is undef, and one of the
4745 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_gethostbyaddr_r is
4746 defined.
4747 "gethostbyname_r_proto"
4749 From d_gethostbyname_r.U:
4750 This variable encodes the prototype of gethostbyname_r. It is zero
4752 if d_gethostbyname_r is undef, and one of the
4753 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_gethostbyname_r is
4754 defined.
4755 "gethostent_r_proto"
4757 From d_gethostent_r.U:
4758 This variable encodes the prototype of gethostent_r. It is zero if
4760 d_gethostent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4761 macros of reentr.h if d_gethostent_r is defined.
4762 "getlogin_r_proto"
4764 From d_getlogin_r.U:
4765 This variable encodes the prototype of getlogin_r. It is zero if
4767 d_getlogin_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4768 macros of reentr.h if d_getlogin_r is defined.
4769 "getnetbyaddr_r_proto"
4771 From d_getnetbyaddr_r.U:
4772 This variable encodes the prototype of getnetbyaddr_r. It is zero
4774 if d_getnetbyaddr_r is undef, and one of the
4775 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getnetbyaddr_r is
4776 defined.
4777 "getnetbyname_r_proto"
4779 From d_getnetbyname_r.U:
4780 This variable encodes the prototype of getnetbyname_r. It is zero
4782 if d_getnetbyname_r is undef, and one of the
4783 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getnetbyname_r is
4784 defined.
4785 "getnetent_r_proto"
4787 From d_getnetent_r.U:
4788 This variable encodes the prototype of getnetent_r. It is zero if
4790 d_getnetent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4791 macros of reentr.h if d_getnetent_r is defined.
4792 "getprotobyname_r_proto"
4794 From d_getprotobyname_r.U:
4795 This variable encodes the prototype of getprotobyname_r. It is
4797 zero if d_getprotobyname_r is undef, and one of the
4798 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getprotobyname_r is
4799 defined.
4800 "getprotobynumber_r_proto"
4802 From d_getprotobynumber_r.U:
4803 This variable encodes the prototype of getprotobynumber_r. It is
4805 zero if d_getprotobynumber_r is undef, and one of the
4806 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getprotobynumber_r
4807 is defined.
4808 "getprotoent_r_proto"
4810 From d_getprotoent_r.U:
4811 This variable encodes the prototype of getprotoent_r. It is zero
4813 if d_getprotoent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4814 macros of reentr.h if d_getprotoent_r is defined.
4815 "getpwent_r_proto"
4817 From d_getpwent_r.U:
4818 This variable encodes the prototype of getpwent_r. It is zero if
4820 d_getpwent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4821 macros of reentr.h if d_getpwent_r is defined.
4822 "getpwnam_r_proto"
4824 From d_getpwnam_r.U:
4825 This variable encodes the prototype of getpwnam_r. It is zero if
4827 d_getpwnam_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4828 macros of reentr.h if d_getpwnam_r is defined.
4829 "getpwuid_r_proto"
4831 From d_getpwuid_r.U:
4832 This variable encodes the prototype of getpwuid_r. It is zero if
4834 d_getpwuid_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4835 macros of reentr.h if d_getpwuid_r is defined.
4836 "getservbyname_r_proto"
4838 From d_getservbyname_r.U:
4839 This variable encodes the prototype of getservbyname_r. It is zero
4841 if d_getservbyname_r is undef, and one of the
4842 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getservbyname_r is
4843 defined.
4844 "getservbyport_r_proto"
4846 From d_getservbyport_r.U:
4847 This variable encodes the prototype of getservbyport_r. It is zero
4849 if d_getservbyport_r is undef, and one of the
4850 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getservbyport_r is
4851 defined.
4852 "getservent_r_proto"
4854 From d_getservent_r.U:
4855 This variable encodes the prototype of getservent_r. It is zero if
4857 d_getservent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4858 macros of reentr.h if d_getservent_r is defined.
4859 "getspnam_r_proto"
4861 From d_getspnam_r.U:
4862 This variable encodes the prototype of getspnam_r. It is zero if
4864 d_getspnam_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4865 macros of reentr.h if d_getspnam_r is defined.
4866 "gidformat"
4868 From gidf.U:
4869 This variable contains the format string used for printing a Gid_t.
4871 "gidsign"
4873 From gidsign.U:
4874 This variable contains the signedness of a gidtype. 1 for
4876 unsigned, -1 for signed.
4877 "gidsize"
4879 From gidsize.U:
4880 This variable contains the size of a gidtype in bytes.
4882 "gidtype"
4884 From gidtype.U:
4885 This variable defines Gid_t to be something like gid_t, int,
4887 ushort, or whatever type is used to declare the return type of
4888 getgid(). Typically, it is the type of group ids in the kernel.
4889 "glibpth"
4891 From libpth.U:
4892 This variable holds the general path (space-separated) used to find
4894 libraries. It may contain directories that do not exist on this
4895 platform, libpth is the cleaned-up version.
4896 "gmake"
4898 From Loc.U:
4899 This variable is used internally by Configure to determine the full
4901 pathname (if any) of the gmake program. After Configure runs, the
4902 value is reset to a plain "gmake" and is not useful.
4903 "gmtime_r_proto"
4905 From d_gmtime_r.U:
4906 This variable encodes the prototype of gmtime_r. It is zero if
4908 d_gmtime_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
4909 of reentr.h if d_gmtime_r is defined.
4910 "gnulibc_version"
4912 From d_gnulibc.U:
4913 This variable contains the version number of the "GNU" C library.
4915 It is usually something like 2.2.5. It is a plain '' if this is
4916 not the "GNU" C library, or if the version is unknown.
4917 "grep"
4919 From Loc.U:
4920 This variable is used internally by Configure to determine the full
4922 pathname (if any) of the grep program. After Configure runs, the
4923 value is reset to a plain "grep" and is not useful.
4924 "groupcat"
4926 From nis.U:
4927 This variable contains a command that produces the text of the
4929 /etc/group file. This is normally "cat /etc/group", but can be
4930 "ypcat group" when "NIS" is used. On some systems, such as os390,
4931 there may be no equivalent command, in which case this variable is
4932 unset.
4933 "groupstype"
4935 From groupstype.U:
4936 This variable defines Groups_t to be something like gid_t, int,
4938 ushort, or whatever type is used for the second argument to
4939 getgroups() and setgroups(). Usually, this is the same as gidtype
4940 (gid_t), but sometimes it isn't.
4941 "gzip"
4943 From Loc.U:
4944 This variable is used internally by Configure to determine the full
4946 pathname (if any) of the gzip program. After Configure runs, the
4947 value is reset to a plain "gzip" and is not useful.
4948 h
4950 "h_fcntl"
4951 From h_fcntl.U:
4952 This is variable gets set in various places to tell i_fcntl that
4954 <fcntl.h> should be included.
4955 "h_sysfile"
4957 From h_sysfile.U:
4958 This is variable gets set in various places to tell i_sys_file that
4960 <sys/file.h> should be included.
4961 "hint"
4963 From Oldconfig.U:
4964 Gives the type of hints used for previous answers. May be one of
4966 "default", "recommended" or "previous".
4967 "hostcat"
4969 From nis.U:
4970 This variable contains a command that produces the text of the
4972 /etc/hosts file. This is normally "cat /etc/hosts", but can be
4973 "ypcat hosts" when "NIS" is used. On some systems, such as os390,
4974 there may be no equivalent command, in which case this variable is
4975 unset.
4976 "hostgenerate"
4978 From Cross.U:
4979 This variable contains the path to a generate_uudmap binary that
4981 can be run on the host "OS" when cross-compiling. Useful and
4982 available only during Perl build. Empty string '' if not cross-
4983 compiling.
4984 "hostosname"
4986 From Cross.U:
4987 This variable contains the original value of $^O for hostperl when
4989 cross-compiling. This is useful to pick the proper tools when
4990 running build code in the host. Empty string '' if not cross-
4991 compiling.
4992 "hostperl"
4994 From Cross.U:
4995 This variable contains the path to a miniperl binary that can be
4997 run on the host "OS" when cross-compiling. Useful and available
4998 only during Perl build. Empty string '' if not cross-compiling.
4999 "html1dir"
5001 From html1dir.U:
5002 This variable contains the name of the directory in which html
5004 source pages are to be put. This directory is for pages that
5005 describe whole programs, not libraries or modules. It is intended
5006 to correspond roughly to section 1 of the Unix manuals.
5007 "html1direxp"
5009 From html1dir.U:
5010 This variable is the same as the html1dir variable, but is filename
5012 expanded at configuration time, for convenient use in makefiles.
5013 "html3dir"
5015 From html3dir.U:
5016 This variable contains the name of the directory in which html
5018 source pages are to be put. This directory is for pages that
5019 describe libraries or modules. It is intended to correspond
5020 roughly to section 3 of the Unix manuals.
5021 "html3direxp"
5023 From html3dir.U:
5024 This variable is the same as the html3dir variable, but is filename
5026 expanded at configuration time, for convenient use in makefiles.
5027 i
5029 "i16size"
5030 From perlxv.U:
5031 This variable is the size of an I16 in bytes.
5033 "i16type"
5035 From perlxv.U:
5036 This variable contains the C type used for Perl's I16.
5038 "i32size"
5040 From perlxv.U:
5041 This variable is the size of an I32 in bytes.
5043 "i32type"
5045 From perlxv.U:
5046 This variable contains the C type used for Perl's I32.
5048 "i64size"
5050 From perlxv.U:
5051 This variable is the size of an I64 in bytes.
5053 "i64type"
5055 From perlxv.U:
5056 This variable contains the C type used for Perl's I64.
5058 "i8size"
5060 From perlxv.U:
5061 This variable is the size of an I8 in bytes.
5063 "i8type"
5065 From perlxv.U:
5066 This variable contains the C type used for Perl's I8.
5068 "i_arpainet"
5070 From i_arpainet.U:
5071 This variable conditionally defines the "I_ARPA_INET" symbol, and
5073 indicates whether a C program should include <arpa/inet.h>.
5074 "i_assert"
5076 From i_assert.U:
5077 This variable conditionally defines the "I_ASSERT" symbol, which
5079 indicates to the C program that <assert.h> exists and could be
5080 included.
5081 "i_bfd"
5083 From i_bfd.U:
5084 This variable conditionally defines the "I_BFD" symbol, and
5086 indicates whether a C program can include <bfd.h>.
5087 "i_bsdioctl"
5089 From i_sysioctl.U:
5090 This variable conditionally defines the "I_SYS_BSDIOCTL" symbol,
5092 which indicates to the C program that <sys/bsdioctl.h> exists and
5093 should be included.
5094 "i_crypt"
5096 From i_crypt.U:
5097 This variable conditionally defines the "I_CRYPT" symbol, and
5099 indicates whether a C program should include <crypt.h>.
5100 "i_db"
5102 From i_db.U:
5103 This variable conditionally defines the "I_DB" symbol, and
5105 indicates whether a C program may include Berkeley's "DB" include
5106 file <db.h>.
5107 "i_dbm"
5109 From i_dbm.U:
5110 This variable conditionally defines the "I_DBM" symbol, which
5112 indicates to the C program that <dbm.h> exists and should be
5113 included.
5114 "i_dirent"
5116 From i_dirent.U:
5117 This variable conditionally defines "I_DIRENT", which indicates to
5119 the C program that it should include <dirent.h>.
5120 "i_dlfcn"
5122 From i_dlfcn.U:
5123 This variable conditionally defines the "I_DLFCN" symbol, which
5125 indicates to the C program that <dlfcn.h> exists and should be
5126 included.
5127 "i_execinfo"
5129 From i_execinfo.U:
5130 This variable conditionally defines the "I_EXECINFO" symbol, and
5132 indicates whether a C program may include <execinfo.h>, for
5133 backtrace() support.
5134 "i_fcntl"
5136 From i_fcntl.U:
5137 This variable controls the value of "I_FCNTL" (which tells the C
5139 program to include <fcntl.h>).
5140 "i_fenv"
5142 From i_fenv.U:
5143 This variable conditionally defines the "I_FENV" symbol, which
5145 indicates to the C program that <fenv.h> exists and should be
5146 included.
5147 "i_float"
5149 From i_float.U:
5150 This variable conditionally defines the "I_FLOAT" symbol, and
5152 indicates whether a C program may include <float.h> to get symbols
5153 like "DBL_MAX" or "DBL_MIN", i.e. machine dependent floating point
5154 values.
5155 "i_fp"
5157 From i_fp.U:
5158 This variable conditionally defines the "I_FP" symbol, and
5160 indicates whether a C program should include <fp.h>.
5161 "i_fp_class"
5163 From i_fp_class.U:
5164 This variable conditionally defines the "I_FP_CLASS" symbol, and
5166 indicates whether a C program should include <fp_class.h>.
5167 "i_gdbm"
5169 From i_gdbm.U:
5170 This variable conditionally defines the "I_GDBM" symbol, which
5172 indicates to the C program that <gdbm.h> exists and should be
5173 included.
5174 "i_gdbm_ndbm"
5176 From i_ndbm.U:
5177 This variable conditionally defines the "I_GDBM_NDBM" symbol, which
5179 indicates to the C program that <gdbm-ndbm.h> exists and should be
5180 included. This is the location of the ndbm.h compatibility file in
5181 Debian 4.0.
5182 "i_gdbmndbm"
5184 From i_ndbm.U:
5185 This variable conditionally defines the "I_GDBMNDBM" symbol, which
5187 indicates to the C program that <gdbm/ndbm.h> exists and should be
5188 included. This was the location of the ndbm.h compatibility file
5189 in RedHat 7.1.
5190 "i_grp"
5192 From i_grp.U:
5193 This variable conditionally defines the "I_GRP" symbol, and
5195 indicates whether a C program should include <grp.h>.
5196 "i_ieeefp"
5198 From i_ieeefp.U:
5199 This variable conditionally defines the "I_IEEEFP" symbol, and
5201 indicates whether a C program should include <ieeefp.h>.
5202 "i_inttypes"
5204 From i_inttypes.U:
5205 This variable conditionally defines the "I_INTTYPES" symbol, and
5207 indicates whether a C program should include <inttypes.h>.
5208 "i_langinfo"
5210 From i_langinfo.U:
5211 This variable conditionally defines the "I_LANGINFO" symbol, and
5213 indicates whether a C program should include <langinfo.h>.
5214 "i_libutil"
5216 From i_libutil.U:
5217 This variable conditionally defines the "I_LIBUTIL" symbol, and
5219 indicates whether a C program should include <libutil.h>.
5220 "i_limits"
5222 From i_limits.U:
5223 This variable conditionally defines the "I_LIMITS" symbol, and
5225 indicates whether a C program may include <limits.h> to get symbols
5226 like "WORD_BIT" and friends.
5227 "i_locale"
5229 From i_locale.U:
5230 This variable conditionally defines the "I_LOCALE" symbol, and
5232 indicates whether a C program should include <locale.h>.
5233 "i_machcthr"
5235 From i_machcthr.U:
5236 This variable conditionally defines the "I_MACH_CTHREADS" symbol,
5238 and indicates whether a C program should include <mach/cthreads.h>.
5239 "i_malloc"
5241 From i_malloc.U:
5242 This variable conditionally defines the "I_MALLOC" symbol, and
5244 indicates whether a C program should include <malloc.h>.
5245 "i_mallocmalloc"
5247 From i_mallocmalloc.U:
5248 This variable conditionally defines the "I_MALLOCMALLOC" symbol,
5250 and indicates whether a C program should include <malloc/malloc.h>.
5251 "i_math"
5253 From i_math.U:
5254 This variable conditionally defines the "I_MATH" symbol, and
5256 indicates whether a C program may include <math.h>.
5257 "i_memory"
5259 From i_memory.U:
5260 This variable conditionally defines the "I_MEMORY" symbol, and
5262 indicates whether a C program should include <memory.h>.
5263 "i_mntent"
5265 From i_mntent.U:
5266 This variable conditionally defines the "I_MNTENT" symbol, and
5268 indicates whether a C program should include <mntent.h>.
5269 "i_ndbm"
5271 From i_ndbm.U:
5272 This variable conditionally defines the "I_NDBM" symbol, which
5274 indicates to the C program that <ndbm.h> exists and should be
5275 included.
5276 "i_netdb"
5278 From i_netdb.U:
5279 This variable conditionally defines the "I_NETDB" symbol, and
5281 indicates whether a C program should include <netdb.h>.
5282 "i_neterrno"
5284 From i_neterrno.U:
5285 This variable conditionally defines the "I_NET_ERRNO" symbol, which
5287 indicates to the C program that <net/errno.h> exists and should be
5288 included.
5289 "i_netinettcp"
5291 From i_netinettcp.U:
5292 This variable conditionally defines the "I_NETINET_TCP" symbol, and
5294 indicates whether a C program should include <netinet/tcp.h>.
5295 "i_niin"
5297 From i_niin.U:
5298 This variable conditionally defines "I_NETINET_IN", which indicates
5300 to the C program that it should include <netinet/in.h>. Otherwise,
5301 you may try <sys/in.h>.
5302 "i_poll"
5304 From i_poll.U:
5305 This variable conditionally defines the "I_POLL" symbol, and
5307 indicates whether a C program should include <poll.h>.
5308 "i_prot"
5310 From i_prot.U:
5311 This variable conditionally defines the "I_PROT" symbol, and
5313 indicates whether a C program should include <prot.h>.
5314 "i_pthread"
5316 From i_pthread.U:
5317 This variable conditionally defines the "I_PTHREAD" symbol, and
5319 indicates whether a C program should include <pthread.h>.
5320 "i_pwd"
5322 From i_pwd.U:
5323 This variable conditionally defines "I_PWD", which indicates to the
5325 C program that it should include <pwd.h>.
5326 "i_quadmath"
5328 From i_quadmath.U:
5329 This variable conditionally defines "I_QUADMATH", which indicates
5331 to the C program that it should include <quadmath.h>.
5332 "i_rpcsvcdbm"
5334 From i_dbm.U:
5335 This variable conditionally defines the "I_RPCSVC_DBM" symbol,
5337 which indicates to the C program that <rpcsvc/dbm.h> exists and
5338 should be included. Some System V systems might need this instead
5339 of <dbm.h>.
5340 "i_sgtty"
5342 From i_termio.U:
5343 This variable conditionally defines the "I_SGTTY" symbol, which
5345 indicates to the C program that it should include <sgtty.h> rather
5346 than <termio.h>.
5347 "i_shadow"
5349 From i_shadow.U:
5350 This variable conditionally defines the "I_SHADOW" symbol, and
5352 indicates whether a C program should include <shadow.h>.
5353 "i_socks"
5355 From i_socks.U:
5356 This variable conditionally defines the "I_SOCKS" symbol, and
5358 indicates whether a C program should include <socks.h>.
5359 "i_stdarg"
5361 From i_varhdr.U:
5362 This variable conditionally defines the "I_STDARG" symbol, which
5364 indicates to the C program that <stdarg.h> exists and should be
5365 included.
5366 "i_stdbool"
5368 From i_stdbool.U:
5369 This variable conditionally defines the "I_STDBOOL" symbol, which
5371 indicates to the C program that <stdbool.h> exists and should be
5372 included.
5373 "i_stddef"
5375 From i_stddef.U:
5376 This variable conditionally defines the "I_STDDEF" symbol, which
5378 indicates to the C program that <stddef.h> exists and should be
5379 included.
5380 "i_stdint"
5382 From i_stdint.U:
5383 This variable conditionally defines the "I_STDINT" symbol, which
5385 indicates to the C program that <stdint.h> exists and should be
5386 included.
5387 "i_stdlib"
5389 From i_stdlib.U:
5390 This variable conditionally defines the "I_STDLIB" symbol, which
5392 indicates to the C program that <stdlib.h> exists and should be
5393 included.
5394 "i_string"
5396 From i_string.U:
5397 This variable conditionally defines the "I_STRING" symbol, which
5399 indicates that <string.h> should be included rather than
5400 <strings.h>.
5401 "i_sunmath"
5403 From i_sunmath.U:
5404 This variable conditionally defines the "I_SUNMATH" symbol, and
5406 indicates whether a C program should include <sunmath.h>.
5407 "i_sysaccess"
5409 From i_sysaccess.U:
5410 This variable conditionally defines the "I_SYS_ACCESS" symbol, and
5412 indicates whether a C program should include <sys/access.h>.
5413 "i_sysdir"
5415 From i_sysdir.U:
5416 This variable conditionally defines the "I_SYS_DIR" symbol, and
5418 indicates whether a C program should include <sys/dir.h>.
5419 "i_sysfile"
5421 From i_sysfile.U:
5422 This variable conditionally defines the "I_SYS_FILE" symbol, and
5424 indicates whether a C program should include <sys/file.h> to get
5425 "R_OK" and friends.
5426 "i_sysfilio"
5428 From i_sysioctl.U:
5429 This variable conditionally defines the "I_SYS_FILIO" symbol, which
5431 indicates to the C program that <sys/filio.h> exists and should be
5432 included in preference to <sys/ioctl.h>.
5433 "i_sysin"
5435 From i_niin.U:
5436 This variable conditionally defines "I_SYS_IN", which indicates to
5438 the C program that it should include <sys/in.h> instead of
5439 <netinet/in.h>.
5440 "i_sysioctl"
5442 From i_sysioctl.U:
5443 This variable conditionally defines the "I_SYS_IOCTL" symbol, which
5445 indicates to the C program that <sys/ioctl.h> exists and should be
5446 included.
5447 "i_syslog"
5449 From i_syslog.U:
5450 This variable conditionally defines the "I_SYSLOG" symbol, and
5452 indicates whether a C program should include <syslog.h>.
5453 "i_sysmman"
5455 From i_sysmman.U:
5456 This variable conditionally defines the "I_SYS_MMAN" symbol, and
5458 indicates whether a C program should include <sys/mman.h>.
5459 "i_sysmode"
5461 From i_sysmode.U:
5462 This variable conditionally defines the "I_SYSMODE" symbol, and
5464 indicates whether a C program should include <sys/mode.h>.
5465 "i_sysmount"
5467 From i_sysmount.U:
5468 This variable conditionally defines the "I_SYSMOUNT" symbol, and
5470 indicates whether a C program should include <sys/mount.h>.
5471 "i_sysndir"
5473 From i_sysndir.U:
5474 This variable conditionally defines the "I_SYS_NDIR" symbol, and
5476 indicates whether a C program should include <sys/ndir.h>.
5477 "i_sysparam"
5479 From i_sysparam.U:
5480 This variable conditionally defines the "I_SYS_PARAM" symbol, and
5482 indicates whether a C program should include <sys/param.h>.
5483 "i_syspoll"
5485 From i_syspoll.U:
5486 This variable conditionally defines the "I_SYS_POLL" symbol, which
5488 indicates to the C program that it should include <sys/poll.h>.
5489 "i_sysresrc"
5491 From i_sysresrc.U:
5492 This variable conditionally defines the "I_SYS_RESOURCE" symbol,
5494 and indicates whether a C program should include <sys/resource.h>.
5495 "i_syssecrt"
5497 From i_syssecrt.U:
5498 This variable conditionally defines the "I_SYS_SECURITY" symbol,
5500 and indicates whether a C program should include <sys/security.h>.
5501 "i_sysselct"
5503 From i_sysselct.U:
5504 This variable conditionally defines "I_SYS_SELECT", which indicates
5506 to the C program that it should include <sys/select.h> in order to
5507 get the definition of struct timeval.
5508 "i_syssockio"
5510 From i_sysioctl.U:
5511 This variable conditionally defines "I_SYS_SOCKIO" to indicate to
5513 the C program that socket ioctl codes may be found in
5514 <sys/sockio.h> instead of <sys/ioctl.h>.
5515 "i_sysstat"
5517 From i_sysstat.U:
5518 This variable conditionally defines the "I_SYS_STAT" symbol, and
5520 indicates whether a C program should include <sys/stat.h>.
5521 "i_sysstatfs"
5523 From i_sysstatfs.U:
5524 This variable conditionally defines the "I_SYSSTATFS" symbol, and
5526 indicates whether a C program should include <sys/statfs.h>.
5527 "i_sysstatvfs"
5529 From i_sysstatvfs.U:
5530 This variable conditionally defines the "I_SYSSTATVFS" symbol, and
5532 indicates whether a C program should include <sys/statvfs.h>.
5533 "i_systime"
5535 From i_time.U:
5536 This variable conditionally defines "I_SYS_TIME", which indicates
5538 to the C program that it should include <sys/time.h>.
5539 "i_systimek"
5541 From i_time.U:
5542 This variable conditionally defines "I_SYS_TIME_KERNEL", which
5544 indicates to the C program that it should include <sys/time.h> with
5545 "KERNEL" defined.
5546 "i_systimes"
5548 From i_systimes.U:
5549 This variable conditionally defines the "I_SYS_TIMES" symbol, and
5551 indicates whether a C program should include <sys/times.h>.
5552 "i_systypes"
5554 From i_systypes.U:
5555 This variable conditionally defines the "I_SYS_TYPES" symbol, and
5557 indicates whether a C program should include <sys/types.h>.
5558 "i_sysuio"
5560 From i_sysuio.U:
5561 This variable conditionally defines the "I_SYSUIO" symbol, and
5563 indicates whether a C program should include <sys/uio.h>.
5564 "i_sysun"
5566 From i_sysun.U:
5567 This variable conditionally defines "I_SYS_UN", which indicates to
5569 the C program that it should include <sys/un.h> to get "UNIX"
5570 domain socket definitions.
5571 "i_sysutsname"
5573 From i_sysutsname.U:
5574 This variable conditionally defines the "I_SYSUTSNAME" symbol, and
5576 indicates whether a C program should include <sys/utsname.h>.
5577 "i_sysvfs"
5579 From i_sysvfs.U:
5580 This variable conditionally defines the "I_SYSVFS" symbol, and
5582 indicates whether a C program should include <sys/vfs.h>.
5583 "i_syswait"
5585 From i_syswait.U:
5586 This variable conditionally defines "I_SYS_WAIT", which indicates
5588 to the C program that it should include <sys/wait.h>.
5589 "i_termio"
5591 From i_termio.U:
5592 This variable conditionally defines the "I_TERMIO" symbol, which
5594 indicates to the C program that it should include <termio.h> rather
5595 than <sgtty.h>.
5596 "i_termios"
5598 From i_termio.U:
5599 This variable conditionally defines the "I_TERMIOS" symbol, which
5601 indicates to the C program that the "POSIX" <termios.h> file is to
5602 be included.
5603 "i_time"
5605 From i_time.U:
5606 This variable conditionally defines "I_TIME", which indicates to
5608 the C program that it should include <time.h>.
5609 "i_unistd"
5611 From i_unistd.U:
5612 This variable conditionally defines the "I_UNISTD" symbol, and
5614 indicates whether a C program should include <unistd.h>.
5615 "i_ustat"
5617 From i_ustat.U:
5618 This variable conditionally defines the "I_USTAT" symbol, and
5620 indicates whether a C program should include <ustat.h>.
5621 "i_utime"
5623 From i_utime.U:
5624 This variable conditionally defines the "I_UTIME" symbol, and
5626 indicates whether a C program should include <utime.h>.
5627 "i_values"
5629 From i_values.U:
5630 This variable conditionally defines the "I_VALUES" symbol, and
5632 indicates whether a C program may include <values.h> to get symbols
5633 like "MAXLONG" and friends.
5634 "i_varargs"
5636 From i_varhdr.U:
5637 This variable conditionally defines "I_VARARGS", which indicates to
5639 the C program that it should include <varargs.h>.
5640 "i_varhdr"
5642 From i_varhdr.U:
5643 Contains the name of the header to be included to get va_dcl
5645 definition. Typically one of varargs.h or stdarg.h.
5646 "i_vfork"
5648 From i_vfork.U:
5649 This variable conditionally defines the "I_VFORK" symbol, and
5651 indicates whether a C program should include vfork.h.
5652 "i_xlocale"
5654 From d_newlocale.U:
5655 This symbol, if defined, indicates to the C program that it should
5657 include <xlocale.h> to get uselocale() and its friends
5658 "ignore_versioned_solibs"
5660 From libs.U:
5661 This variable should be non-empty if non-versioned shared libraries
5663 (libfoo.so.x.y) are to be ignored (because they cannot be linked
5664 against).
5665 "inc_version_list"
5667 From inc_version_list.U:
5668 This variable specifies the list of subdirectories in over which
5670 perl.c:incpush() and lib/lib.pm will automatically search when
5671 adding directories to @"INC". The elements in the list are
5672 separated by spaces. This is only useful if you have a perl
5673 library directory tree structured like the default one. See
5674 "INSTALL" for how this works. The versioned site_perl directory
5675 was introduced in 5.005, so that is the lowest possible value.
5676 This list includes architecture-dependent directories back to
5678 version $api_versionstring (e.g. 5.5.640) and architecture-
5679 independent directories all the way back to 5.005.
5680 "inc_version_list_init"
5682 From inc_version_list.U:
5683 This variable holds the same list as inc_version_list, but each
5685 item is enclosed in double quotes and separated by commas, suitable
5686 for use in the "PERL_INC_VERSION_LIST" initialization.
5687 "incpath"
5689 From usrinc.U:
5690 This variable must precede the normal include path to get the right
5692 one, as in $incpath/usr/include or $incpath/usr/lib. Value can be
5693 "" or /bsd43 on mips.
5694 "incpth"
5696 From libpth.U:
5697 This variable must precede the normal include path to get the right
5699 one, as in $incpath/usr/include or $incpath/usr/lib. Value can be
5700 "" or /bsd43 on mips.
5701 "inews"
5703 From Loc.U:
5704 This variable is defined but not used by Configure. The value is
5706 the empty string and is not useful.
5707 "initialinstalllocation"
5709 From bin.U:
5710 When userelocatableinc is true, this variable holds the location
5712 that make install should copy the perl binary to, with all the run-
5713 time relocatable paths calculated from this at install time. When
5714 used, it is initialized to the original value of binexp, and then
5715 binexp is set to .../, as the other binaries are found relative to
5716 the perl binary.
5717 "installarchlib"
5719 From archlib.U:
5720 This variable is really the same as archlibexp but may differ on
5722 those systems using "AFS". For extra portability, only this
5723 variable should be used in makefiles.
5724 "installbin"
5726 From bin.U:
5727 This variable is the same as binexp unless "AFS" is running in
5729 which case the user is explicitly prompted for it. This variable
5730 should always be used in your makefiles for maximum portability.
5731 "installhtml1dir"
5733 From html1dir.U:
5734 This variable is really the same as html1direxp, unless you are
5736 using a different installprefix. For extra portability, you should
5737 only use this variable within your makefiles.
5738 "installhtml3dir"
5740 From html3dir.U:
5741 This variable is really the same as html3direxp, unless you are
5743 using a different installprefix. For extra portability, you should
5744 only use this variable within your makefiles.
5745 "installman1dir"
5747 From man1dir.U:
5748 This variable is really the same as man1direxp, unless you are
5750 using "AFS" in which case it points to the read/write location
5751 whereas man1direxp only points to the read-only access location.
5752 For extra portability, you should only use this variable within
5753 your makefiles.
5754 "installman3dir"
5756 From man3dir.U:
5757 This variable is really the same as man3direxp, unless you are
5759 using "AFS" in which case it points to the read/write location
5760 whereas man3direxp only points to the read-only access location.
5761 For extra portability, you should only use this variable within
5762 your makefiles.
5763 "installprefix"
5765 From installprefix.U:
5766 This variable holds the name of the directory below which "make
5768 install" will install the package. For most users, this is the
5769 same as prefix. However, it is useful for installing the software
5770 into a different (usually temporary) location after which it can be
5771 bundled up and moved somehow to the final location specified by
5772 prefix.
5773 "installprefixexp"
5775 From installprefix.U:
5776 This variable holds the full absolute path of installprefix with
5778 all ~-expansion done.
5779 "installprivlib"
5781 From privlib.U:
5782 This variable is really the same as privlibexp but may differ on
5784 those systems using "AFS". For extra portability, only this
5785 variable should be used in makefiles.
5786 "installscript"
5788 From scriptdir.U:
5789 This variable is usually the same as scriptdirexp, unless you are
5791 on a system running "AFS", in which case they may differ slightly.
5792 You should always use this variable within your makefiles for
5793 portability.
5794 "installsitearch"
5796 From sitearch.U:
5797 This variable is really the same as sitearchexp but may differ on
5799 those systems using "AFS". For extra portability, only this
5800 variable should be used in makefiles.
5801 "installsitebin"
5803 From sitebin.U:
5804 This variable is usually the same as sitebinexp, unless you are on
5806 a system running "AFS", in which case they may differ slightly. You
5807 should always use this variable within your makefiles for
5808 portability.
5809 "installsitehtml1dir"
5811 From sitehtml1dir.U:
5812 This variable is really the same as sitehtml1direxp, unless you are
5814 using "AFS" in which case it points to the read/write location
5815 whereas html1direxp only points to the read-only access location.
5816 For extra portability, you should only use this variable within
5817 your makefiles.
5818 "installsitehtml3dir"
5820 From sitehtml3dir.U:
5821 This variable is really the same as sitehtml3direxp, unless you are
5823 using "AFS" in which case it points to the read/write location
5824 whereas html3direxp only points to the read-only access location.
5825 For extra portability, you should only use this variable within
5826 your makefiles.
5827 "installsitelib"
5829 From sitelib.U:
5830 This variable is really the same as sitelibexp but may differ on
5832 those systems using "AFS". For extra portability, only this
5833 variable should be used in makefiles.
5834 "installsiteman1dir"
5836 From siteman1dir.U:
5837 This variable is really the same as siteman1direxp, unless you are
5839 using "AFS" in which case it points to the read/write location
5840 whereas man1direxp only points to the read-only access location.
5841 For extra portability, you should only use this variable within
5842 your makefiles.
5843 "installsiteman3dir"
5845 From siteman3dir.U:
5846 This variable is really the same as siteman3direxp, unless you are
5848 using "AFS" in which case it points to the read/write location
5849 whereas man3direxp only points to the read-only access location.
5850 For extra portability, you should only use this variable within
5851 your makefiles.
5852 "installsitescript"
5854 From sitescript.U:
5855 This variable is usually the same as sitescriptexp, unless you are
5857 on a system running "AFS", in which case they may differ slightly.
5858 You should always use this variable within your makefiles for
5859 portability.
5860 "installstyle"
5862 From installstyle.U:
5863 This variable describes the "style" of the perl installation. This
5865 is intended to be useful for tools that need to manipulate entire
5866 perl distributions. Perl itself doesn't use this to find its
5867 libraries -- the library directories are stored directly in
5868 Config.pm. Currently, there are only two styles: "lib" and
5869 lib/perl5. The default library locations (e.g. privlib, sitelib)
5870 are either $prefix/lib or $prefix/lib/perl5. The former is useful
5871 if $prefix is a directory dedicated to perl (e.g. /opt/perl), while
5872 the latter is useful if $prefix is shared by many packages, e.g. if
5873 $prefix=/usr/local.
5874 Unfortunately, while this "style" variable is used to set defaults
5876 for all three directory hierarchies (core, vendor, and site), there
5877 is no guarantee that the same style is actually appropriate for all
5878 those directories. For example, $prefix might be /opt/perl, but
5879 $siteprefix might be /usr/local. (Perhaps, in retrospect, the
5880 "lib" style should never have been supported, but it did seem like
5881 a nice idea at the time.)
5882 The situation is even less clear for tools such as MakeMaker that
5884 can be used to install additional modules into non-standard places.
5885 For example, if a user intends to install a module into a private
5886 directory (perhaps by setting "PREFIX" on the Makefile.PL command
5887 line), then there is no reason to assume that the Configure-time
5888 $installstyle setting will be relevant for that "PREFIX".
5889 This may later be extended to include other information, so be
5891 careful with pattern-matching on the results.
5892 For compatibility with perl5.005 and earlier, the default setting
5894 is based on whether or not $prefix contains the string "perl".
5895 "installusrbinperl"
5897 From instubperl.U:
5898 This variable tells whether Perl should be installed also as
5900 /usr/bin/perl in addition to $installbin/perl
5901 "installvendorarch"
5903 From vendorarch.U:
5904 This variable is really the same as vendorarchexp but may differ on
5906 those systems using "AFS". For extra portability, only this
5907 variable should be used in makefiles.
5908 "installvendorbin"
5910 From vendorbin.U:
5911 This variable is really the same as vendorbinexp but may differ on
5913 those systems using "AFS". For extra portability, only this
5914 variable should be used in makefiles.
5915 "installvendorhtml1dir"
5917 From vendorhtml1dir.U:
5918 This variable is really the same as vendorhtml1direxp but may
5920 differ on those systems using "AFS". For extra portability, only
5921 this variable should be used in makefiles.
5922 "installvendorhtml3dir"
5924 From vendorhtml3dir.U:
5925 This variable is really the same as vendorhtml3direxp but may
5927 differ on those systems using "AFS". For extra portability, only
5928 this variable should be used in makefiles.
5929 "installvendorlib"
5931 From vendorlib.U:
5932 This variable is really the same as vendorlibexp but may differ on
5934 those systems using "AFS". For extra portability, only this
5935 variable should be used in makefiles.
5936 "installvendorman1dir"
5938 From vendorman1dir.U:
5939 This variable is really the same as vendorman1direxp but may differ
5941 on those systems using "AFS". For extra portability, only this
5942 variable should be used in makefiles.
5943 "installvendorman3dir"
5945 From vendorman3dir.U:
5946 This variable is really the same as vendorman3direxp but may differ
5948 on those systems using "AFS". For extra portability, only this
5949 variable should be used in makefiles.
5950 "installvendorscript"
5952 From vendorscript.U:
5953 This variable is really the same as vendorscriptexp but may differ
5955 on those systems using "AFS". For extra portability, only this
5956 variable should be used in makefiles.
5957 "intsize"
5959 From intsize.U:
5960 This variable contains the value of the "INTSIZE" symbol, which
5962 indicates to the C program how many bytes there are in an int.
5963 "issymlink"
5965 From issymlink.U:
5966 This variable holds the test command to test for a symbolic link
5968 (if they are supported). Typical values include "test -h" and
5969 "test -L".
5970 "ivdformat"
5972 From perlxvf.U:
5973 This variable contains the format string used for printing a Perl
5975 "IV" as a signed decimal integer.
5976 "ivsize"
5978 From perlxv.U:
5979 This variable is the size of an "IV" in bytes.
5981 "ivtype"
5983 From perlxv.U:
5984 This variable contains the C type used for Perl's "IV".
5986 k
5988 "known_extensions"
5989 From Extensions.U:
5990 This variable holds a list of all extensions (both "XS" and non-xs)
5992 included in the package source distribution. This information is
5993 only really of use during the Perl build, as the list makes no
5994 distinction between extensions which were build and installed, and
5995 those which where not. See "extensions" for the list of extensions
5996 actually built and available.
5997 "ksh"
5999 From Loc.U:
6000 This variable is defined but not used by Configure. The value is
6002 the empty string and is not useful.
6003 l
6005 "ld"
6006 From dlsrc.U:
6007 This variable indicates the program to be used to link libraries
6009 for dynamic loading. On some systems, it is "ld". On "ELF"
6010 systems, it should be $cc. Mostly, we'll try to respect the hint
6011 file setting.
6012 "ld_can_script"
6014 From dlsrc.U:
6015 This variable shows if the loader accepts scripts in the form of
6017 -Wl,--version-script=ld.script. This is currently only supported
6018 for "GNU" ld on "ELF" in dynamic loading builds.
6019 "lddlflags"
6021 From dlsrc.U:
6022 This variable contains any special flags that might need to be
6024 passed to $ld to create a shared library suitable for dynamic
6025 loading. It is up to the makefile to use it. For hpux, it should
6026 be "-b". For sunos 4.1, it is empty.
6027 "ldflags"
6029 From ccflags.U:
6030 This variable contains any additional C loader flags desired by the
6032 user. It is up to the Makefile to use this.
6033 "ldflags_uselargefiles"
6035 From uselfs.U:
6036 This variable contains the loader flags needed by large file builds
6038 and added to ldflags by hints files.
6039 "ldlibpthname"
6041 From libperl.U:
6042 This variable holds the name of the shared library search path,
6044 often "LD_LIBRARY_PATH". To get an empty string, the hints file
6045 must set this to "none".
6046 "less"
6048 From Loc.U:
6049 This variable is used internally by Configure to determine the full
6051 pathname (if any) of the less program. After Configure runs, the
6052 value is reset to a plain "less" and is not useful.
6053 "lib_ext"
6055 From Unix.U:
6056 This is an old synonym for _a.
6058 "libc"
6060 From libc.U:
6061 This variable contains the location of the C library.
6063 "libperl"
6065 From libperl.U:
6066 The perl executable is obtained by linking perlmain.c with libperl,
6068 any static extensions (usually just DynaLoader), and any other
6069 libraries needed on this system. libperl is usually libperl.a, but
6070 can also be libperl.so.xxx if the user wishes to build a perl
6071 executable with a shared library.
6072 "libpth"
6074 From libpth.U:
6075 This variable holds the general path (space-separated) used to find
6077 libraries. It is intended to be used by other units.
6078 "libs"
6080 From libs.U:
6081 This variable holds the additional libraries we want to use. It is
6083 up to the Makefile to deal with it. The list can be empty.
6084 "libsdirs"
6086 From libs.U:
6087 This variable holds the directory names aka dirnames of the
6089 libraries we found and accepted, duplicates are removed.
6090 "libsfiles"
6092 From libs.U:
6093 This variable holds the filenames aka basenames of the libraries we
6095 found and accepted.
6096 "libsfound"
6098 From libs.U:
6099 This variable holds the full pathnames of the libraries we found
6101 and accepted.
6102 "libspath"
6104 From libs.U:
6105 This variable holds the directory names probed for libraries.
6107 "libswanted"
6109 From Myinit.U:
6110 This variable holds a list of all the libraries we want to search.
6112 The order is chosen to pick up the c library ahead of ucb or bsd
6113 libraries for SVR4.
6114 "libswanted_uselargefiles"
6116 From uselfs.U:
6117 This variable contains the libraries needed by large file builds
6119 and added to ldflags by hints files. It is a space separated list
6120 of the library names without the "lib" prefix or any suffix, just
6121 like libswanted..
6122 "line"
6124 From Loc.U:
6125 This variable is defined but not used by Configure. The value is
6127 the empty string and is not useful.
6128 "lint"
6130 From Loc.U:
6131 This variable is defined but not used by Configure. The value is
6133 the empty string and is not useful.
6134 "lkflags"
6136 From ccflags.U:
6137 This variable contains any additional C partial linker flags
6139 desired by the user. It is up to the Makefile to use this.
6140 "ln"
6142 From Loc.U:
6143 This variable is used internally by Configure to determine the full
6145 pathname (if any) of the ln program. After Configure runs, the
6146 value is reset to a plain "ln" and is not useful.
6147 "lns"
6149 From lns.U:
6150 This variable holds the name of the command to make symbolic links
6152 (if they are supported). It can be used in the Makefile. It is
6153 either "ln -s" or "ln"
6154 "localtime_r_proto"
6156 From d_localtime_r.U:
6157 This variable encodes the prototype of localtime_r. It is zero if
6159 d_localtime_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
6160 macros of reentr.h if d_localtime_r is defined.
6161 "locincpth"
6163 From ccflags.U:
6164 This variable contains a list of additional directories to be
6166 searched by the compiler. The appropriate "-I" directives will be
6167 added to ccflags. This is intended to simplify setting local
6168 directories from the Configure command line. It's not much, but it
6169 parallels the loclibpth stuff in libpth.U.
6170 "loclibpth"
6172 From libpth.U:
6173 This variable holds the paths (space-separated) used to find local
6175 libraries. It is prepended to libpth, and is intended to be easily
6176 set from the command line.
6177 "longdblinfbytes"
6179 From infnan.U:
6180 This variable contains comma-separated list of hexadecimal bytes
6182 for the long double precision infinity.
6183 "longdblkind"
6185 From d_longdbl.U:
6186 This variable, if defined, encodes the type of a long double: 0 =
6188 double, 1 = "IEEE" 754 128-bit little endian, 2 = "IEEE" 754
6189 128-bit big endian, 3 = x86 80-bit little endian, 4 = x86 80-bit
6190 big endian, 5 = double-double 128-bit little endian, 6 = double-
6191 double 128-bit big endian, 7 = 128-bit mixed-endian double-double
6192 (64-bit LEs in "BE"), 8 = 128-bit mixed-endian double-double
6193 (64-bit BEs in "LE"), 9 = 128-bit "PDP"-style mixed-endian long
6194 doubles, -1 = unknown format.
6195 "longdblmantbits"
6197 From mantbits.U:
6198 This symbol, if defined, tells how many mantissa bits there are in
6200 long double precision floating point format. Note that this can be
6201 "LDBL_MANT_DIG" minus one, since "LDBL_MANT_DIG" can include the
6202 "IEEE" 754 implicit bit. The common x86-style 80-bit long double
6203 does not have an implicit bit.
6204 "longdblnanbytes"
6206 From infnan.U:
6207 This variable contains comma-separated list of hexadecimal bytes
6209 for the long double precision not-a-number.
6210 "longdblsize"
6212 From d_longdbl.U:
6213 This variable contains the value of the "LONG_DOUBLESIZE" symbol,
6215 which indicates to the C program how many bytes there are in a long
6216 double, if this system supports long doubles. Note that this is
6217 sizeof(long double), which may include unused bytes.
6218 "longlongsize"
6220 From d_longlong.U:
6221 This variable contains the value of the "LONGLONGSIZE" symbol,
6223 which indicates to the C program how many bytes there are in a long
6224 long, if this system supports long long.
6225 "longsize"
6227 From intsize.U:
6228 This variable contains the value of the "LONGSIZE" symbol, which
6230 indicates to the C program how many bytes there are in a long.
6231 "lp"
6233 From Loc.U:
6234 This variable is defined but not used by Configure. The value is
6236 the empty string and is not useful.
6237 "lpr"
6239 From Loc.U:
6240 This variable is defined but not used by Configure. The value is
6242 the empty string and is not useful.
6243 "ls"
6245 From Loc.U:
6246 This variable is used internally by Configure to determine the full
6248 pathname (if any) of the ls program. After Configure runs, the
6249 value is reset to a plain "ls" and is not useful.
6250 "lseeksize"
6252 From lseektype.U:
6253 This variable defines lseektype to be something like off_t, long,
6255 or whatever type is used to declare lseek offset's type in the
6256 kernel (which also appears to be lseek's return type).
6257 "lseektype"
6259 From lseektype.U:
6260 This variable defines lseektype to be something like off_t, long,
6262 or whatever type is used to declare lseek offset's type in the
6263 kernel (which also appears to be lseek's return type).
6264 m
6266 "mail"
6267 From Loc.U:
6268 This variable is defined but not used by Configure. The value is
6270 the empty string and is not useful.
6271 "mailx"
6273 From Loc.U:
6274 This variable is defined but not used by Configure. The value is
6276 the empty string and is not useful.
6277 "make"
6279 From Loc.U:
6280 This variable is used internally by Configure to determine the full
6282 pathname (if any) of the make program. After Configure runs, the
6283 value is reset to a plain "make" and is not useful.
6284 "make_set_make"
6286 From make.U:
6287 Some versions of "make" set the variable "MAKE". Others do not.
6289 This variable contains the string to be included in Makefile.SH so
6290 that "MAKE" is set if needed, and not if not needed. Possible
6291 values are:
6292 make_set_make="#" # If your make program handles this for
6294 you,
6295 make_set_make="MAKE=$make" # if it doesn't.
6297 This uses a comment character so that we can distinguish a "set"
6299 value (from a previous config.sh or Configure "-D" option) from an
6300 uncomputed value.
6301 "mallocobj"
6303 From mallocsrc.U:
6304 This variable contains the name of the malloc.o that this package
6306 generates, if that malloc.o is preferred over the system malloc.
6307 Otherwise the value is null. This variable is intended for
6308 generating Makefiles. See mallocsrc.
6309 "mallocsrc"
6311 From mallocsrc.U:
6312 This variable contains the name of the malloc.c that comes with the
6314 package, if that malloc.c is preferred over the system malloc.
6315 Otherwise the value is null. This variable is intended for
6316 generating Makefiles.
6317 "malloctype"
6319 From mallocsrc.U:
6320 This variable contains the kind of ptr returned by malloc and
6322 realloc.
6323 "man1dir"
6325 From man1dir.U:
6326 This variable contains the name of the directory in which manual
6328 source pages are to be put. It is the responsibility of the
6329 Makefile.SH to get the value of this into the proper command. You
6330 must be prepared to do the ~name expansion yourself.
6331 "man1direxp"
6333 From man1dir.U:
6334 This variable is the same as the man1dir variable, but is filename
6336 expanded at configuration time, for convenient use in makefiles.
6337 "man1ext"
6339 From man1dir.U:
6340 This variable contains the extension that the manual page should
6342 have: one of "n", "l", or 1. The Makefile must supply the .. See
6343 man1dir.
6344 "man3dir"
6346 From man3dir.U:
6347 This variable contains the name of the directory in which manual
6349 source pages are to be put. It is the responsibility of the
6350 Makefile.SH to get the value of this into the proper command. You
6351 must be prepared to do the ~name expansion yourself.
6352 "man3direxp"
6354 From man3dir.U:
6355 This variable is the same as the man3dir variable, but is filename
6357 expanded at configuration time, for convenient use in makefiles.
6358 "man3ext"
6360 From man3dir.U:
6361 This variable contains the extension that the manual page should
6363 have: one of "n", "l", or 3. The Makefile must supply the .. See
6364 man3dir.
6365 "mips_type"
6367 From usrinc.U:
6368 This variable holds the environment type for the mips system.
6370 Possible values are "BSD 4.3" and "System V".
6371 "mistrustnm"
6373 From Csym.U:
6374 This variable can be used to establish a fallthrough for the cases
6376 where nm fails to find a symbol. If usenm is false or usenm is
6377 true and mistrustnm is false, this variable has no effect. If
6378 usenm is true and mistrustnm is "compile", a test program will be
6379 compiled to try to find any symbol that can't be located via nm
6380 lookup. If mistrustnm is "run", the test program will be run as
6381 well as being compiled.
6382 "mkdir"
6384 From Loc.U:
6385 This variable is used internally by Configure to determine the full
6387 pathname (if any) of the mkdir program. After Configure runs, the
6388 value is reset to a plain "mkdir" and is not useful.
6389 "mmaptype"
6391 From d_mmap.U:
6392 This symbol contains the type of pointer returned by mmap() (and
6394 simultaneously the type of the first argument). It can be "void *"
6395 or "caddr_t".
6396 "modetype"
6398 From modetype.U:
6399 This variable defines modetype to be something like mode_t, int,
6401 unsigned short, or whatever type is used to declare file modes for
6402 system calls.
6403 "more"
6405 From Loc.U:
6406 This variable is used internally by Configure to determine the full
6408 pathname (if any) of the more program. After Configure runs, the
6409 value is reset to a plain "more" and is not useful.
6410 "multiarch"
6412 From multiarch.U:
6413 This variable conditionally defines the "MULTIARCH" symbol which
6415 signifies the presence of multiplatform files. This is normally
6416 set by hints files.
6417 "mv"
6419 From Loc.U:
6420 This variable is defined but not used by Configure. The value is
6422 the empty string and is not useful.
6423 "myarchname"
6425 From archname.U:
6426 This variable holds the architecture name computed by Configure in
6428 a previous run. It is not intended to be perused by any user and
6429 should never be set in a hint file.
6430 "mydomain"
6432 From myhostname.U:
6433 This variable contains the eventual value of the "MYDOMAIN" symbol,
6435 which is the domain of the host the program is going to run on.
6436 The domain must be appended to myhostname to form a complete host
6437 name. The dot comes with mydomain, and need not be supplied by the
6438 program.
6439 "myhostname"
6441 From myhostname.U:
6442 This variable contains the eventual value of the "MYHOSTNAME"
6444 symbol, which is the name of the host the program is going to run
6445 on. The domain is not kept with hostname, but must be gotten from
6446 mydomain. The dot comes with mydomain, and need not be supplied by
6447 the program.
6448 "myuname"
6450 From Oldconfig.U:
6451 The output of "uname -a" if available, otherwise the hostname. The
6453 whole thing is then lower-cased and slashes and single quotes are
6454 removed.
6455 n
6457 "n" From n.U:
6458 This variable contains the "-n" flag if that is what causes the
6460 echo command to suppress newline. Otherwise it is null. Correct
6461 usage is $echo $n "prompt for a question: $c".
6462 "need_va_copy"
6464 From need_va_copy.U:
6465 This symbol, if defined, indicates that the system stores the
6467 variable argument list datatype, va_list, in a format that cannot
6468 be copied by simple assignment, so that some other means must be
6469 used when copying is required. As such systems vary in their
6470 provision (or non-provision) of copying mechanisms, handy.h defines
6471 a platform- "independent" macro, Perl_va_copy(src, dst), to do the
6472 job.
6473 "netdb_hlen_type"
6475 From netdbtype.U:
6476 This variable holds the type used for the 2nd argument to
6478 gethostbyaddr(). Usually, this is int or size_t or unsigned. This
6479 is only useful if you have gethostbyaddr(), naturally.
6480 "netdb_host_type"
6482 From netdbtype.U:
6483 This variable holds the type used for the 1st argument to
6485 gethostbyaddr(). Usually, this is char * or void *, possibly with
6486 or without a const prefix. This is only useful if you have
6487 gethostbyaddr(), naturally.
6488 "netdb_name_type"
6490 From netdbtype.U:
6491 This variable holds the type used for the argument to
6493 gethostbyname(). Usually, this is char * or const char *. This is
6494 only useful if you have gethostbyname(), naturally.
6495 "netdb_net_type"
6497 From netdbtype.U:
6498 This variable holds the type used for the 1st argument to
6500 getnetbyaddr(). Usually, this is int or long. This is only useful
6501 if you have getnetbyaddr(), naturally.
6502 "nm"
6504 From Loc.U:
6505 This variable is used internally by Configure to determine the full
6507 pathname (if any) of the nm program. After Configure runs, the
6508 value is reset to a plain "nm" and is not useful.
6509 "nm_opt"
6511 From usenm.U:
6512 This variable holds the options that may be necessary for nm.
6514 "nm_so_opt"
6516 From usenm.U:
6517 This variable holds the options that may be necessary for nm to
6519 work on a shared library but that can not be used on an archive
6520 library. Currently, this is only used by Linux, where nm --dynamic
6521 is *required* to get symbols from an "ELF" library which has been
6522 stripped, but nm --dynamic is *fatal* on an archive library. Maybe
6523 Linux should just always set usenm=false.
6524 "nonxs_ext"
6526 From Extensions.U:
6527 This variable holds a list of all non-xs extensions built and
6529 installed by the package. By default, all non-xs extensions
6530 distributed will be built, with the exception of platform-specific
6531 extensions (currently only one "VMS" specific extension).
6532 "nroff"
6534 From Loc.U:
6535 This variable is used internally by Configure to determine the full
6537 pathname (if any) of the nroff program. After Configure runs, the
6538 value is reset to a plain "nroff" and is not useful.
6539 "nv_overflows_integers_at"
6541 From perlxv.U:
6542 This variable gives the largest integer value that NVs can hold as
6544 a constant floating point expression. If it could not be
6545 determined, it holds the value 0.
6546 "nv_preserves_uv_bits"
6548 From perlxv.U:
6549 This variable indicates how many of bits type uvtype a variable
6551 nvtype can preserve.
6552 "nveformat"
6554 From perlxvf.U:
6555 This variable contains the format string used for printing a Perl
6557 "NV" using %e-ish floating point format.
6558 "nvEUformat"
6560 From perlxvf.U:
6561 This variable contains the format string used for printing a Perl
6563 "NV" using %E-ish floating point format.
6564 "nvfformat"
6566 From perlxvf.U:
6567 This variable contains the format string used for printing a Perl
6569 "NV" using %f-ish floating point format.
6570 "nvFUformat"
6572 From perlxvf.U:
6573 This variable contains the format string used for printing a Perl
6575 "NV" using %F-ish floating point format.
6576 "nvgformat"
6578 From perlxvf.U:
6579 This variable contains the format string used for printing a Perl
6581 "NV" using %g-ish floating point format.
6582 "nvGUformat"
6584 From perlxvf.U:
6585 This variable contains the format string used for printing a Perl
6587 "NV" using %G-ish floating point format.
6588 "nvmantbits"
6590 From mantbits.U:
6591 This variable tells how many bits the mantissa of a Perl "NV" has,
6593 not including the possible implicit bit.
6594 "nvsize"
6596 From perlxv.U:
6597 This variable is the size of a Perl "NV" in bytes. Note that some
6599 floating point formats have unused bytes.
6600 "nvtype"
6602 From perlxv.U:
6603 This variable contains the C type used for Perl's "NV".
6605 o
6607 "o_nonblock"
6608 From nblock_io.U:
6609 This variable bears the symbol value to be used during open() or
6611 fcntl() to turn on non-blocking I/O for a file descriptor. If you
6612 wish to switch between blocking and non-blocking, you may try
6613 ioctl("FIOSNBIO") instead, but that is only supported by some
6614 devices.
6615 "obj_ext"
6617 From Unix.U:
6618 This is an old synonym for _o.
6620 "old_pthread_create_joinable"
6622 From d_pthrattrj.U:
6623 This variable defines the constant to use for creating joinable
6625 (aka undetached) pthreads. Unused if pthread.h defines
6626 "PTHREAD_CREATE_JOINABLE". If used, possible values are
6627 "PTHREAD_CREATE_UNDETACHED" and "__UNDETACHED".
6628 "optimize"
6630 From ccflags.U:
6631 This variable contains any optimizer/debugger flag that should be
6633 used. It is up to the Makefile to use it.
6634 "orderlib"
6636 From orderlib.U:
6637 This variable is "true" if the components of libraries must be
6639 ordered (with `lorder $* | tsort`) before placing them in an
6640 archive. Set to "false" if ranlib or ar can generate random
6641 libraries.
6642 "osname"
6644 From Oldconfig.U:
6645 This variable contains the operating system name (e.g. sunos,
6647 solaris, hpux, etc.). It can be useful later on for setting
6648 defaults. Any spaces are replaced with underscores. It is set to
6649 a null string if we can't figure it out.
6650 "osvers"
6652 From Oldconfig.U:
6653 This variable contains the operating system version (e.g. 4.1.3,
6655 5.2, etc.). It is primarily used for helping select an appropriate
6656 hints file, but might be useful elsewhere for setting defaults. It
6657 is set to '' if we can't figure it out. We try to be flexible
6658 about how much of the version number to keep, e.g. if 4.1.1, 4.1.2,
6659 and 4.1.3 are essentially the same for this package, hints files
6660 might just be os_4.0 or os_4.1, etc., not keeping separate files
6661 for each little release.
6662 "otherlibdirs"
6664 From otherlibdirs.U:
6665 This variable contains a colon-separated set of paths for the perl
6667 binary to search for additional library files or modules. These
6668 directories will be tacked to the end of @"INC". Perl will
6669 automatically search below each path for version- and architecture-
6670 specific directories. See inc_version_list for more details. A
6671 value of " " means "none" and is used to preserve this value for
6672 the next run through Configure.
6673 p
6675 "package"
6676 From package.U:
6677 This variable contains the name of the package being constructed.
6679 It is primarily intended for the use of later Configure units.
6680 "pager"
6682 From pager.U:
6683 This variable contains the name of the preferred pager on the
6685 system. Usual values are (the full pathnames of) more, less, pg,
6686 or cat.
6687 "passcat"
6689 From nis.U:
6690 This variable contains a command that produces the text of the
6692 /etc/passwd file. This is normally "cat /etc/passwd", but can be
6693 "ypcat passwd" when "NIS" is used. On some systems, such as os390,
6694 there may be no equivalent command, in which case this variable is
6695 unset.
6696 "patchlevel"
6698 From patchlevel.U:
6699 The patchlevel level of this package. The value of patchlevel
6701 comes from the patchlevel.h file. In a version number such as
6702 5.6.1, this is the 6. In patchlevel.h, this is referred to as
6703 "PERL_VERSION".
6704 "path_sep"
6706 From Unix.U:
6707 This is an old synonym for p_ in Head.U, the character used to
6709 separate elements in the command shell search "PATH".
6710 "perl"
6712 From Loc.U:
6713 This variable is used internally by Configure to determine the full
6715 pathname (if any) of the perl program. After Configure runs, the
6716 value is reset to a plain "perl" and is not useful.
6717 "perl5"
6719 From perl5.U:
6720 This variable contains the full path (if any) to a previously
6722 installed perl5.005 or later suitable for running the script to
6723 determine inc_version_list.
6724 P
6726 "PERL_API_REVISION"
6727 From patchlevel.h:
6728 This number describes the earliest compatible "PERL_REVISION" of
6730 Perl ("compatibility" here being defined as sufficient binary/"API"
6731 compatibility to run "XS" code built with the older version).
6732 Normally this does not change across maintenance releases. Please
6733 read the comment in patchlevel.h.
6734 "PERL_API_SUBVERSION"
6736 From patchlevel.h:
6737 This number describes the earliest compatible "PERL_SUBVERSION" of
6739 Perl ("compatibility" here being defined as sufficient binary/"API"
6740 compatibility to run "XS" code built with the older version).
6741 Normally this does not change across maintenance releases. Please
6742 read the comment in patchlevel.h.
6743 "PERL_API_VERSION"
6745 From patchlevel.h:
6746 This number describes the earliest compatible "PERL_VERSION" of
6748 Perl ("compatibility" here being defined as sufficient binary/"API"
6749 compatibility to run "XS" code built with the older version).
6750 Normally this does not change across maintenance releases. Please
6751 read the comment in patchlevel.h.
6752 "PERL_CONFIG_SH"
6754 From Oldsyms.U:
6755 This is set to "true" in config.sh so that a shell script sourcing
6757 config.sh can tell if it has been sourced already.
6758 "PERL_PATCHLEVEL"
6760 From Oldsyms.U:
6761 This symbol reflects the patchlevel, if available. Will usually
6763 come from the .patch file, which is available when the perl source
6764 tree was fetched with rsync.
6765 "perl_patchlevel"
6767 From patchlevel.U:
6768 This is the Perl patch level, a numeric change identifier, as
6770 defined by whichever source code maintenance system is used to
6771 maintain the patches; currently Perforce. It does not correlate
6772 with the Perl version numbers or the maintenance versus development
6773 dichotomy except by also being increasing.
6774 "PERL_REVISION"
6776 From Oldsyms.U:
6777 In a Perl version number such as 5.6.2, this is the 5. This value
6779 is manually set in patchlevel.h
6780 "perl_static_inline"
6782 From d_static_inline.U:
6783 This variable defines the "PERL_STATIC_INLINE" symbol to the best-
6785 guess incantation to use for static inline functions.
6786 Possibilities include static inline (c99) static __inline__
6787 (gcc -ansi) static __inline ("MSVC") static _inline (older
6788 "MSVC") static (c89 compilers)
6789 "PERL_SUBVERSION"
6791 From Oldsyms.U:
6792 In a Perl version number such as 5.6.2, this is the 2. Values
6794 greater than 50 represent potentially unstable development
6795 subversions. This value is manually set in patchlevel.h
6796 "PERL_VERSION"
6798 From Oldsyms.U:
6799 In a Perl version number such as 5.6.2, this is the 6. This value
6801 is manually set in patchlevel.h
6802 "perladmin"
6804 From perladmin.U:
6805 Electronic mail address of the perl5 administrator.
6807 "perllibs"
6809 From End.U:
6810 The list of libraries needed by Perl only (any libraries needed by
6812 extensions only will by dropped, if using dynamic loading).
6813 "perlpath"
6815 From perlpath.U:
6816 This variable contains the eventual value of the "PERLPATH" symbol,
6818 which contains the name of the perl interpreter to be used in shell
6819 scripts and in the "eval "exec"" idiom. This variable is not
6820 necessarily the pathname of the file containing the perl
6821 interpreter; you must append the executable extension (_exe) if it
6822 is not already present. Note that Perl code that runs during the
6823 Perl build process cannot reference this variable, as Perl may not
6824 have been installed, or even if installed, may be a different
6825 version of Perl.
6826 "pg"
6828 From Loc.U:
6829 This variable is used internally by Configure to determine the full
6831 pathname (if any) of the pg program. After Configure runs, the
6832 value is reset to a plain "pg" and is not useful.
6833 "phostname"
6835 From myhostname.U:
6836 This variable contains the eventual value of the "PHOSTNAME"
6838 symbol, which is a command that can be fed to popen() to get the
6839 host name. The program should probably not presume that the domain
6840 is or isn't there already.
6841 "pidtype"
6843 From pidtype.U:
6844 This variable defines "PIDTYPE" to be something like pid_t, int,
6846 ushort, or whatever type is used to declare process ids in the
6847 kernel.
6848 "plibpth"
6850 From libpth.U:
6851 Holds the private path used by Configure to find out the libraries.
6853 Its value is prepend to libpth. This variable takes care of special
6854 machines, like the mips. Usually, it should be empty.
6855 "pmake"
6857 From Loc.U:
6858 This variable is defined but not used by Configure. The value is
6860 the empty string and is not useful.
6861 "pr"
6863 From Loc.U:
6864 This variable is defined but not used by Configure. The value is
6866 the empty string and is not useful.
6867 "prefix"
6869 From prefix.U:
6870 This variable holds the name of the directory below which the user
6872 will install the package. Usually, this is /usr/local, and
6873 executables go in /usr/local/bin, library stuff in /usr/local/lib,
6874 man pages in /usr/local/man, etc. It is only used to set defaults
6875 for things in bin.U, mansrc.U, privlib.U, or scriptdir.U.
6876 "prefixexp"
6878 From prefix.U:
6879 This variable holds the full absolute path of the directory below
6881 which the user will install the package. Derived from prefix.
6882 "privlib"
6884 From privlib.U:
6885 This variable contains the eventual value of the "PRIVLIB" symbol,
6887 which is the name of the private library for this package. It may
6888 have a ~ on the front. It is up to the makefile to eventually
6889 create this directory while performing installation (with ~
6890 substitution).
6891 "privlibexp"
6893 From privlib.U:
6894 This variable is the ~name expanded version of privlib, so that you
6896 may use it directly in Makefiles or shell scripts.
6897 "procselfexe"
6899 From d_procselfexe.U:
6900 If d_procselfexe is defined, $procselfexe is the filename of the
6902 symbolic link pointing to the absolute pathname of the executing
6903 program.
6904 "prototype"
6906 From prototype.U:
6907 This variable holds the eventual value of "CAN_PROTOTYPE", which
6909 indicates the C compiler can handle function prototypes.
6910 "ptrsize"
6912 From ptrsize.U:
6913 This variable contains the value of the "PTRSIZE" symbol, which
6915 indicates to the C program how many bytes there are in a pointer.
6916 q
6918 "quadkind"
6919 From quadtype.U:
6920 This variable, if defined, encodes the type of a quad: 1 = int, 2 =
6922 long, 3 = long long, 4 = int64_t.
6923 "quadtype"
6925 From quadtype.U:
6926 This variable defines Quad_t to be something like long, int, long
6928 long, int64_t, or whatever type is used for 64-bit integers.
6929 r
6931 "randbits"
6932 From randfunc.U:
6933 Indicates how many bits are produced by the function used to
6935 generate normalized random numbers.
6936 "randfunc"
6938 From randfunc.U:
6939 Indicates the name of the random number function to use. Values
6941 include drand48, random, and rand. In C programs, the "Drand01"
6942 macro is defined to generate uniformly distributed random numbers
6943 over the range [0., 1.[ (see drand01 and nrand).
6944 "random_r_proto"
6946 From d_random_r.U:
6947 This variable encodes the prototype of random_r. It is zero if
6949 d_random_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
6950 of reentr.h if d_random_r is defined.
6951 "randseedtype"
6953 From randfunc.U:
6954 Indicates the type of the argument of the seedfunc.
6956 "ranlib"
6958 From orderlib.U:
6959 This variable is set to the pathname of the ranlib program, if it
6961 is needed to generate random libraries. Set to ":" if ar can
6962 generate random libraries or if random libraries are not supported
6963 "rd_nodata"
6965 From nblock_io.U:
6966 This variable holds the return code from read() when no data is
6968 present. It should be -1, but some systems return 0 when "O_NDELAY"
6969 is used, which is a shame because you cannot make the difference
6970 between no data and an EOF.. Sigh!
6971 "readdir64_r_proto"
6973 From d_readdir64_r.U:
6974 This variable encodes the prototype of readdir64_r. It is zero if
6976 d_readdir64_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
6977 macros of reentr.h if d_readdir64_r is defined.
6978 "readdir_r_proto"
6980 From d_readdir_r.U:
6981 This variable encodes the prototype of readdir_r. It is zero if
6983 d_readdir_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
6984 of reentr.h if d_readdir_r is defined.
6985 "revision"
6987 From patchlevel.U:
6988 The value of revision comes from the patchlevel.h file. In a
6990 version number such as 5.6.1, this is the 5. In patchlevel.h, this
6991 is referred to as "PERL_REVISION".
6992 "rm"
6994 From Loc.U:
6995 This variable is used internally by Configure to determine the full
6997 pathname (if any) of the rm program. After Configure runs, the
6998 value is reset to a plain "rm" and is not useful.
6999 "rm_try"
7001 From Unix.U:
7002 This is a cleanup variable for try test programs. Internal
7004 Configure use only.
7005 "rmail"
7007 From Loc.U:
7008 This variable is defined but not used by Configure. The value is
7010 the empty string and is not useful.
7011 "run"
7013 From Cross.U:
7014 This variable contains the command used by Configure to copy and
7016 execute a cross-compiled executable in the target host. Useful and
7017 available only during Perl build. Empty string '' if not cross-
7018 compiling.
7019 "runnm"
7021 From usenm.U:
7022 This variable contains "true" or "false" depending whether the nm
7024 extraction should be performed or not, according to the value of
7025 usenm and the flags on the Configure command line.
7026 s
7028 "sched_yield"
7029 From d_pthread_y.U:
7030 This variable defines the way to yield the execution of the current
7032 thread.
7033 "scriptdir"
7035 From scriptdir.U:
7036 This variable holds the name of the directory in which the user
7038 wants to put publicly scripts for the package in question. It is
7039 either the same directory as for binaries, or a special one that
7040 can be mounted across different architectures, like /usr/share.
7041 Programs must be prepared to deal with ~name expansion.
7042 "scriptdirexp"
7044 From scriptdir.U:
7045 This variable is the same as scriptdir, but is filename expanded at
7047 configuration time, for programs not wanting to bother with it.
7048 "sed"
7050 From Loc.U:
7051 This variable is used internally by Configure to determine the full
7053 pathname (if any) of the sed program. After Configure runs, the
7054 value is reset to a plain "sed" and is not useful.
7055 "seedfunc"
7057 From randfunc.U:
7058 Indicates the random number generating seed function. Values
7060 include srand48, srandom, and srand.
7061 "selectminbits"
7063 From selectminbits.U:
7064 This variable holds the minimum number of bits operated by select.
7066 That is, if you do select(n, ...), how many bits at least will be
7067 cleared in the masks if some activity is detected. Usually this is
7068 either n or 32*ceil(n/32), especially many little-endians do the
7069 latter. This is only useful if you have select(), naturally.
7070 "selecttype"
7072 From selecttype.U:
7073 This variable holds the type used for the 2nd, 3rd, and 4th
7075 arguments to select. Usually, this is "fd_set *", if "HAS_FD_SET"
7076 is defined, and "int *" otherwise. This is only useful if you have
7077 select(), naturally.
7078 "sendmail"
7080 From Loc.U:
7081 This variable is defined but not used by Configure. The value is
7083 the empty string and is not useful.
7084 "setgrent_r_proto"
7086 From d_setgrent_r.U:
7087 This variable encodes the prototype of setgrent_r. It is zero if
7089 d_setgrent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7090 macros of reentr.h if d_setgrent_r is defined.
7091 "sethostent_r_proto"
7093 From d_sethostent_r.U:
7094 This variable encodes the prototype of sethostent_r. It is zero if
7096 d_sethostent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7097 macros of reentr.h if d_sethostent_r is defined.
7098 "setlocale_r_proto"
7100 From d_setlocale_r.U:
7101 This variable encodes the prototype of setlocale_r. It is zero if
7103 d_setlocale_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7104 macros of reentr.h if d_setlocale_r is defined.
7105 "setnetent_r_proto"
7107 From d_setnetent_r.U:
7108 This variable encodes the prototype of setnetent_r. It is zero if
7110 d_setnetent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7111 macros of reentr.h if d_setnetent_r is defined.
7112 "setprotoent_r_proto"
7114 From d_setprotoent_r.U:
7115 This variable encodes the prototype of setprotoent_r. It is zero
7117 if d_setprotoent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7118 macros of reentr.h if d_setprotoent_r is defined.
7119 "setpwent_r_proto"
7121 From d_setpwent_r.U:
7122 This variable encodes the prototype of setpwent_r. It is zero if
7124 d_setpwent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7125 macros of reentr.h if d_setpwent_r is defined.
7126 "setservent_r_proto"
7128 From d_setservent_r.U:
7129 This variable encodes the prototype of setservent_r. It is zero if
7131 d_setservent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7132 macros of reentr.h if d_setservent_r is defined.
7133 "sGMTIME_max"
7135 From time_size.U:
7136 This variable defines the maximum value of the time_t offset that
7138 the system function gmtime () accepts
7139 "sGMTIME_min"
7141 From time_size.U:
7142 This variable defines the minimum value of the time_t offset that
7144 the system function gmtime () accepts
7145 "sh"
7147 From sh.U:
7148 This variable contains the full pathname of the shell used on this
7150 system to execute Bourne shell scripts. Usually, this will be
7151 /bin/sh, though it's possible that some systems will have /bin/ksh,
7152 /bin/pdksh, /bin/ash, /bin/bash, or even something such as
7153 D:/bin/sh.exe. This unit comes before Options.U, so you can't set
7154 sh with a "-D" option, though you can override this (and startsh)
7155 with "-O -Dsh=/bin/whatever -Dstartsh=whatever"
7156 "shar"
7158 From Loc.U:
7159 This variable is defined but not used by Configure. The value is
7161 the empty string and is not useful.
7162 "sharpbang"
7164 From spitshell.U:
7165 This variable contains the string #! if this system supports that
7167 construct.
7168 "shmattype"
7170 From d_shmat.U:
7171 This symbol contains the type of pointer returned by shmat(). It
7173 can be "void *" or "char *".
7174 "shortsize"
7176 From intsize.U:
7177 This variable contains the value of the "SHORTSIZE" symbol which
7179 indicates to the C program how many bytes there are in a short.
7180 "shrpenv"
7182 From libperl.U:
7183 If the user builds a shared libperl.so, then we need to tell the
7185 "perl" executable where it will be able to find the installed
7186 libperl.so. One way to do this on some systems is to set the
7187 environment variable "LD_RUN_PATH" to the directory that will be
7188 the final location of the shared libperl.so. The makefile can use
7189 this with something like $shrpenv $("CC") -o perl perlmain.o
7190 $libperl $libs Typical values are shrpenv="env
7191 "LD_RUN_PATH"=$archlibexp/"CORE"" or shrpenv='' See the main perl
7192 Makefile.SH for actual working usage. Alternatively, we might be
7193 able to use a command line option such as -R $archlibexp/"CORE"
7194 (Solaris) or -Wl,-rpath $archlibexp/"CORE" (Linux).
7195 "shsharp"
7197 From spitshell.U:
7198 This variable tells further Configure units whether your sh can
7200 handle # comments.
7201 "sig_count"
7203 From sig_name.U:
7204 This variable holds a number larger than the largest valid signal
7206 number. This is usually the same as the "NSIG" macro.
7207 "sig_name"
7209 From sig_name.U:
7210 This variable holds the signal names, space separated. The leading
7212 "SIG" in signal name is removed. A "ZERO" is prepended to the
7213 list. This is currently not used, sig_name_init is used instead.
7214 "sig_name_init"
7216 From sig_name.U:
7217 This variable holds the signal names, enclosed in double quotes and
7219 separated by commas, suitable for use in the "SIG_NAME" definition
7220 below. A "ZERO" is prepended to the list, and the list is
7221 terminated with a plain 0. The leading "SIG" in signal names is
7222 removed. See sig_num.
7223 "sig_num"
7225 From sig_name.U:
7226 This variable holds the signal numbers, space separated. A "ZERO"
7228 is prepended to the list (corresponding to the fake "SIGZERO").
7229 Those numbers correspond to the value of the signal listed in the
7230 same place within the sig_name list. This is currently not used,
7231 sig_num_init is used instead.
7232 "sig_num_init"
7234 From sig_name.U:
7235 This variable holds the signal numbers, enclosed in double quotes
7237 and separated by commas, suitable for use in the "SIG_NUM"
7238 definition below. A "ZERO" is prepended to the list, and the list
7239 is terminated with a plain 0.
7240 "sig_size"
7242 From sig_name.U:
7243 This variable contains the number of elements of the sig_name and
7245 sig_num arrays.
7246 "signal_t"
7248 From d_voidsig.U:
7249 This variable holds the type of the signal handler (void or int).
7251 "sitearch"
7253 From sitearch.U:
7254 This variable contains the eventual value of the "SITEARCH" symbol,
7256 which is the name of the private library for this package. It may
7257 have a ~ on the front. It is up to the makefile to eventually
7258 create this directory while performing installation (with ~
7259 substitution). The standard distribution will put nothing in this
7260 directory. After perl has been installed, users may install their
7261 own local architecture-dependent modules in this directory with
7262 MakeMaker Makefile.PL or equivalent. See "INSTALL" for details.
7263 "sitearchexp"
7265 From sitearch.U:
7266 This variable is the ~name expanded version of sitearch, so that
7268 you may use it directly in Makefiles or shell scripts.
7269 "sitebin"
7271 From sitebin.U:
7272 This variable holds the name of the directory in which the user
7274 wants to put add-on publicly executable files for the package in
7275 question. It is most often a local directory such as
7276 /usr/local/bin. Programs using this variable must be prepared to
7277 deal with ~name substitution. The standard distribution will put
7278 nothing in this directory. After perl has been installed, users
7279 may install their own local executables in this directory with
7280 MakeMaker Makefile.PL or equivalent. See "INSTALL" for details.
7281 "sitebinexp"
7283 From sitebin.U:
7284 This is the same as the sitebin variable, but is filename expanded
7286 at configuration time, for use in your makefiles.
7287 "sitehtml1dir"
7289 From sitehtml1dir.U:
7290 This variable contains the name of the directory in which site-
7292 specific html source pages are to be put. It is the responsibility
7293 of the Makefile.SH to get the value of this into the proper
7294 command. You must be prepared to do the ~name expansion yourself.
7295 The standard distribution will put nothing in this directory.
7296 After perl has been installed, users may install their own local
7297 html pages in this directory with MakeMaker Makefile.PL or
7298 equivalent. See "INSTALL" for details.
7299 "sitehtml1direxp"
7301 From sitehtml1dir.U:
7302 This variable is the same as the sitehtml1dir variable, but is
7304 filename expanded at configuration time, for convenient use in
7305 makefiles.
7306 "sitehtml3dir"
7308 From sitehtml3dir.U:
7309 This variable contains the name of the directory in which site-
7311 specific library html source pages are to be put. It is the
7312 responsibility of the Makefile.SH to get the value of this into the
7313 proper command. You must be prepared to do the ~name expansion
7314 yourself. The standard distribution will put nothing in this
7315 directory. After perl has been installed, users may install their
7316 own local library html pages in this directory with MakeMaker
7317 Makefile.PL or equivalent. See "INSTALL" for details.
7318 "sitehtml3direxp"
7320 From sitehtml3dir.U:
7321 This variable is the same as the sitehtml3dir variable, but is
7323 filename expanded at configuration time, for convenient use in
7324 makefiles.
7325 "sitelib"
7327 From sitelib.U:
7328 This variable contains the eventual value of the "SITELIB" symbol,
7330 which is the name of the private library for this package. It may
7331 have a ~ on the front. It is up to the makefile to eventually
7332 create this directory while performing installation (with ~
7333 substitution). The standard distribution will put nothing in this
7334 directory. After perl has been installed, users may install their
7335 own local architecture-independent modules in this directory with
7336 MakeMaker Makefile.PL or equivalent. See "INSTALL" for details.
7337 "sitelib_stem"
7339 From sitelib.U:
7340 This variable is $sitelibexp with any trailing version-specific
7342 component removed. The elements in inc_version_list
7343 (inc_version_list.U) can be tacked onto this variable to generate a
7344 list of directories to search.
7345 "sitelibexp"
7347 From sitelib.U:
7348 This variable is the ~name expanded version of sitelib, so that you
7350 may use it directly in Makefiles or shell scripts.
7351 "siteman1dir"
7353 From siteman1dir.U:
7354 This variable contains the name of the directory in which site-
7356 specific manual source pages are to be put. It is the
7357 responsibility of the Makefile.SH to get the value of this into the
7358 proper command. You must be prepared to do the ~name expansion
7359 yourself. The standard distribution will put nothing in this
7360 directory. After perl has been installed, users may install their
7361 own local man1 pages in this directory with MakeMaker Makefile.PL
7362 or equivalent. See "INSTALL" for details.
7363 "siteman1direxp"
7365 From siteman1dir.U:
7366 This variable is the same as the siteman1dir variable, but is
7368 filename expanded at configuration time, for convenient use in
7369 makefiles.
7370 "siteman3dir"
7372 From siteman3dir.U:
7373 This variable contains the name of the directory in which site-
7375 specific library man source pages are to be put. It is the
7376 responsibility of the Makefile.SH to get the value of this into the
7377 proper command. You must be prepared to do the ~name expansion
7378 yourself. The standard distribution will put nothing in this
7379 directory. After perl has been installed, users may install their
7380 own local man3 pages in this directory with MakeMaker Makefile.PL
7381 or equivalent. See "INSTALL" for details.
7382 "siteman3direxp"
7384 From siteman3dir.U:
7385 This variable is the same as the siteman3dir variable, but is
7387 filename expanded at configuration time, for convenient use in
7388 makefiles.
7389 "siteprefix"
7391 From siteprefix.U:
7392 This variable holds the full absolute path of the directory below
7394 which the user will install add-on packages. See "INSTALL" for
7395 usage and examples.
7396 "siteprefixexp"
7398 From siteprefix.U:
7399 This variable holds the full absolute path of the directory below
7401 which the user will install add-on packages. Derived from
7402 siteprefix.
7403 "sitescript"
7405 From sitescript.U:
7406 This variable holds the name of the directory in which the user
7408 wants to put add-on publicly executable files for the package in
7409 question. It is most often a local directory such as
7410 /usr/local/bin. Programs using this variable must be prepared to
7411 deal with ~name substitution. The standard distribution will put
7412 nothing in this directory. After perl has been installed, users
7413 may install their own local scripts in this directory with
7414 MakeMaker Makefile.PL or equivalent. See "INSTALL" for details.
7415 "sitescriptexp"
7417 From sitescript.U:
7418 This is the same as the sitescript variable, but is filename
7420 expanded at configuration time, for use in your makefiles.
7421 "sizesize"
7423 From sizesize.U:
7424 This variable contains the size of a sizetype in bytes.
7426 "sizetype"
7428 From sizetype.U:
7429 This variable defines sizetype to be something like size_t,
7431 unsigned long, or whatever type is used to declare length
7432 parameters for string functions.
7433 "sleep"
7435 From Loc.U:
7436 This variable is defined but not used by Configure. The value is
7438 the empty string and is not useful.
7439 "sLOCALTIME_max"
7441 From time_size.U:
7442 This variable defines the maximum value of the time_t offset that
7444 the system function localtime () accepts
7445 "sLOCALTIME_min"
7447 From time_size.U:
7448 This variable defines the minimum value of the time_t offset that
7450 the system function localtime () accepts
7451 "smail"
7453 From Loc.U:
7454 This variable is defined but not used by Configure. The value is
7456 the empty string and is not useful.
7457 "so"
7459 From so.U:
7460 This variable holds the extension used to identify shared libraries
7462 (also known as shared objects) on the system. Usually set to "so".
7463 "sockethdr"
7465 From d_socket.U:
7466 This variable has any cpp "-I" flags needed for socket support.
7468 "socketlib"
7470 From d_socket.U:
7471 This variable has the names of any libraries needed for socket
7473 support.
7474 "socksizetype"
7476 From socksizetype.U:
7477 This variable holds the type used for the size argument for various
7479 socket calls like accept. Usual values include socklen_t, size_t,
7480 and int.
7481 "sort"
7483 From Loc.U:
7484 This variable is used internally by Configure to determine the full
7486 pathname (if any) of the sort program. After Configure runs, the
7487 value is reset to a plain "sort" and is not useful.
7488 "spackage"
7490 From package.U:
7491 This variable contains the name of the package being constructed,
7493 with the first letter uppercased, i.e. suitable for starting
7494 sentences.
7495 "spitshell"
7497 From spitshell.U:
7498 This variable contains the command necessary to spit out a runnable
7500 shell on this system. It is either cat or a grep "-v" for #
7501 comments.
7502 "sPRId64"
7504 From quadfio.U:
7505 This variable, if defined, contains the string used by stdio to
7507 format 64-bit decimal numbers (format "d") for output.
7508 "sPRIeldbl"
7510 From longdblfio.U:
7511 This variable, if defined, contains the string used by stdio to
7513 format long doubles (format "e") for output.
7514 "sPRIEUldbl"
7516 From longdblfio.U:
7517 This variable, if defined, contains the string used by stdio to
7519 format long doubles (format "E") for output. The "U" in the name
7520 is to separate this from sPRIeldbl so that even case-blind systems
7521 can see the difference.
7522 "sPRIfldbl"
7524 From longdblfio.U:
7525 This variable, if defined, contains the string used by stdio to
7527 format long doubles (format "f") for output.
7528 "sPRIFUldbl"
7530 From longdblfio.U:
7531 This variable, if defined, contains the string used by stdio to
7533 format long doubles (format "F") for output. The "U" in the name
7534 is to separate this from sPRIfldbl so that even case-blind systems
7535 can see the difference.
7536 "sPRIgldbl"
7538 From longdblfio.U:
7539 This variable, if defined, contains the string used by stdio to
7541 format long doubles (format "g") for output.
7542 "sPRIGUldbl"
7544 From longdblfio.U:
7545 This variable, if defined, contains the string used by stdio to
7547 format long doubles (format "G") for output. The "U" in the name
7548 is to separate this from sPRIgldbl so that even case-blind systems
7549 can see the difference.
7550 "sPRIi64"
7552 From quadfio.U:
7553 This variable, if defined, contains the string used by stdio to
7555 format 64-bit decimal numbers (format "i") for output.
7556 "sPRIo64"
7558 From quadfio.U:
7559 This variable, if defined, contains the string used by stdio to
7561 format 64-bit octal numbers (format "o") for output.
7562 "sPRIu64"
7564 From quadfio.U:
7565 This variable, if defined, contains the string used by stdio to
7567 format 64-bit unsigned decimal numbers (format "u") for output.
7568 "sPRIx64"
7570 From quadfio.U:
7571 This variable, if defined, contains the string used by stdio to
7573 format 64-bit hexadecimal numbers (format "x") for output.
7574 "sPRIXU64"
7576 From quadfio.U:
7577 This variable, if defined, contains the string used by stdio to
7579 format 64-bit hExADECimAl numbers (format "X") for output. The "U"
7580 in the name is to separate this from sPRIx64 so that even case-
7581 blind systems can see the difference.
7582 "srand48_r_proto"
7584 From d_srand48_r.U:
7585 This variable encodes the prototype of srand48_r. It is zero if
7587 d_srand48_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
7588 of reentr.h if d_srand48_r is defined.
7589 "srandom_r_proto"
7591 From d_srandom_r.U:
7592 This variable encodes the prototype of srandom_r. It is zero if
7594 d_srandom_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
7595 of reentr.h if d_srandom_r is defined.
7596 "src"
7598 From src.U:
7599 This variable holds the (possibly relative) path of the package
7601 source. It is up to the Makefile to use this variable and set
7602 "VPATH" accordingly to find the sources remotely. Use $pkgsrc to
7603 have an absolute path.
7604 "sSCNfldbl"
7606 From longdblfio.U:
7607 This variable, if defined, contains the string used by stdio to
7609 format long doubles (format "f") for input.
7610 "ssizetype"
7612 From ssizetype.U:
7613 This variable defines ssizetype to be something like ssize_t, long
7615 or int. It is used by functions that return a count of bytes or an
7616 error condition. It must be a signed type. We will pick a type
7617 such that sizeof(SSize_t) == sizeof(Size_t).
7618 "st_ino_sign"
7620 From st_ino_def.U:
7621 This variable contains the signedness of struct stat's st_ino. 1
7623 for unsigned, -1 for signed.
7624 "st_ino_size"
7626 From st_ino_def.U:
7627 This variable contains the size of struct stat's st_ino in bytes.
7629 "startperl"
7631 From startperl.U:
7632 This variable contains the string to put on the front of a perl
7634 script to make sure (hopefully) that it runs with perl and not some
7635 shell. Of course, that leading line must be followed by the
7636 classical perl idiom: eval 'exec perl -S $0 ${1+$@}' if
7637 $running_under_some_shell; to guarantee perl startup should the
7638 shell execute the script. Note that this magic incantation is not
7639 understood by csh.
7640 "startsh"
7642 From startsh.U:
7643 This variable contains the string to put on the front of a shell
7645 script to make sure (hopefully) that it runs with sh and not some
7646 other shell.
7647 "static_ext"
7649 From Extensions.U:
7650 This variable holds a list of "XS" extension files we want to link
7652 statically into the package. It is used by Makefile.
7653 "stdchar"
7655 From stdchar.U:
7656 This variable conditionally defines "STDCHAR" to be the type of
7658 char used in stdio.h. It has the values "unsigned char" or "char".
7659 "stdio_base"
7661 From d_stdstdio.U:
7662 This variable defines how, given a "FILE" pointer, fp, to access
7664 the _base field (or equivalent) of stdio.h's "FILE" structure.
7665 This will be used to define the macro FILE_base(fp).
7666 "stdio_bufsiz"
7668 From d_stdstdio.U:
7669 This variable defines how, given a "FILE" pointer, fp, to determine
7671 the number of bytes store in the I/O buffer pointer to by the _base
7672 field (or equivalent) of stdio.h's "FILE" structure. This will be
7673 used to define the macro FILE_bufsiz(fp).
7674 "stdio_cnt"
7676 From d_stdstdio.U:
7677 This variable defines how, given a "FILE" pointer, fp, to access
7679 the _cnt field (or equivalent) of stdio.h's "FILE" structure. This
7680 will be used to define the macro FILE_cnt(fp).
7681 "stdio_filbuf"
7683 From d_stdstdio.U:
7684 This variable defines how, given a "FILE" pointer, fp, to tell
7686 stdio to refill its internal buffers (?). This will be used to
7687 define the macro FILE_filbuf(fp).
7688 "stdio_ptr"
7690 From d_stdstdio.U:
7691 This variable defines how, given a "FILE" pointer, fp, to access
7693 the _ptr field (or equivalent) of stdio.h's "FILE" structure. This
7694 will be used to define the macro FILE_ptr(fp).
7695 "stdio_stream_array"
7697 From stdio_streams.U:
7698 This variable tells the name of the array holding the stdio
7700 streams. Usual values include _iob, __iob, and __sF.
7701 "strerror_r_proto"
7703 From d_strerror_r.U:
7704 This variable encodes the prototype of strerror_r. It is zero if
7706 d_strerror_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7707 macros of reentr.h if d_strerror_r is defined.
7708 "strings"
7710 From i_string.U:
7711 This variable holds the full path of the string header that will be
7713 used. Typically /usr/include/string.h or /usr/include/strings.h.
7714 "submit"
7716 From Loc.U:
7717 This variable is defined but not used by Configure. The value is
7719 the empty string and is not useful.
7720 "subversion"
7722 From patchlevel.U:
7723 The subversion level of this package. The value of subversion
7725 comes from the patchlevel.h file. In a version number such as
7726 5.6.1, this is the 1. In patchlevel.h, this is referred to as
7727 "PERL_SUBVERSION". This is unique to perl.
7728 "sysman"
7730 From sysman.U:
7731 This variable holds the place where the manual is located on this
7733 system. It is not the place where the user wants to put his manual
7734 pages. Rather it is the place where Configure may look to find
7735 manual for unix commands (section 1 of the manual usually). See
7736 mansrc.
7737 "sysroot"
7739 From Sysroot.U:
7740 This variable is empty unless supplied by the Configure user. It
7742 can contain a path to an alternative root directory, under which
7743 headers and libraries for the compilation target can be found. This
7744 is generally used when cross-compiling using a gcc-like compiler.
7745 t
7747 "tail"
7748 From Loc.U:
7749 This variable is defined but not used by Configure. The value is
7751 the empty string and is not useful.
7752 "tar"
7754 From Loc.U:
7755 This variable is defined but not used by Configure. The value is
7757 the empty string and is not useful.
7758 "targetarch"
7760 From Cross.U:
7761 If cross-compiling, this variable contains the target architecture.
7763 If not, this will be empty.
7764 "targetdir"
7766 From Cross.U:
7767 This variable contains a path that will be created on the target
7769 host using targetmkdir, and then used to copy the cross-compiled
7770 executables to. Defaults to /tmp if not set.
7771 "targetenv"
7773 From Cross.U:
7774 If cross-compiling, this variable can be used to modify the
7776 environment on the target system. However, how and where it's
7777 used, and even if it's used at all, is entirely dependent on both
7778 the transport mechanism (targetrun) and what the target system is.
7779 Unless the relevant documentation says otherwise, it is genereally
7780 not useful.
7781 "targethost"
7783 From Cross.U:
7784 This variable contains the name of a separate host machine that can
7786 be used to run compiled test programs and perl tests on. Set to
7787 empty string if not in use.
7788 "targetmkdir"
7790 From Cross.U:
7791 This variable contains the command used by Configure to create a
7793 new directory on the target host.
7794 "targetport"
7796 From Cross.U:
7797 This variable contains the number of a network port to be used to
7799 connect to the host in targethost, if unset defaults to 22 for ssh.
7800 "targetsh"
7802 From sh.U:
7803 If cross-compiling, this variable contains the location of sh on
7805 the target system. If not, this will be the same as $sh.
7806 "tbl"
7808 From Loc.U:
7809 This variable is defined but not used by Configure. The value is
7811 the empty string and is not useful.
7812 "tee"
7814 From Loc.U:
7815 This variable is defined but not used by Configure. The value is
7817 the empty string and is not useful.
7818 "test"
7820 From Loc.U:
7821 This variable is used internally by Configure to determine the full
7823 pathname (if any) of the test program. After Configure runs, the
7824 value is reset to a plain "test" and is not useful.
7825 "timeincl"
7827 From i_time.U:
7828 This variable holds the full path of the included time header(s).
7830 "timetype"
7832 From d_time.U:
7833 This variable holds the type returned by time(). It can be long, or
7835 time_t on "BSD" sites (in which case <sys/types.h> should be
7836 included). Anyway, the type Time_t should be used.
7837 "tmpnam_r_proto"
7839 From d_tmpnam_r.U:
7840 This variable encodes the prototype of tmpnam_r. It is zero if
7842 d_tmpnam_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
7843 of reentr.h if d_tmpnam_r is defined.
7844 "to"
7846 From Cross.U:
7847 This variable contains the command used by Configure to copy to
7849 from the target host. Useful and available only during Perl build.
7850 The string ":" if not cross-compiling.
7851 "touch"
7853 From Loc.U:
7854 This variable is used internally by Configure to determine the full
7856 pathname (if any) of the touch program. After Configure runs, the
7857 value is reset to a plain "touch" and is not useful.
7858 "tr"
7860 From Loc.U:
7861 This variable is used internally by Configure to determine the full
7863 pathname (if any) of the tr program. After Configure runs, the
7864 value is reset to a plain "tr" and is not useful.
7865 "trnl"
7867 From trnl.U:
7868 This variable contains the value to be passed to the tr(1) command
7870 to transliterate a newline. Typical values are "\012" and "\n".
7871 This is needed for "EBCDIC" systems where newline is not
7872 necessarily "\012".
7873 "troff"
7875 From Loc.U:
7876 This variable is defined but not used by Configure. The value is
7878 the empty string and is not useful.
7879 "ttyname_r_proto"
7881 From d_ttyname_r.U:
7882 This variable encodes the prototype of ttyname_r. It is zero if
7884 d_ttyname_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
7885 of reentr.h if d_ttyname_r is defined.
7886 u
7888 "u16size"
7889 From perlxv.U:
7890 This variable is the size of an U16 in bytes.
7892 "u16type"
7894 From perlxv.U:
7895 This variable contains the C type used for Perl's U16.
7897 "u32size"
7899 From perlxv.U:
7900 This variable is the size of an U32 in bytes.
7902 "u32type"
7904 From perlxv.U:
7905 This variable contains the C type used for Perl's U32.
7907 "u64size"
7909 From perlxv.U:
7910 This variable is the size of an U64 in bytes.
7912 "u64type"
7914 From perlxv.U:
7915 This variable contains the C type used for Perl's U64.
7917 "u8size"
7919 From perlxv.U:
7920 This variable is the size of an U8 in bytes.
7922 "u8type"
7924 From perlxv.U:
7925 This variable contains the C type used for Perl's U8.
7927 "uidformat"
7929 From uidf.U:
7930 This variable contains the format string used for printing a Uid_t.
7932 "uidsign"
7934 From uidsign.U:
7935 This variable contains the signedness of a uidtype. 1 for
7937 unsigned, -1 for signed.
7938 "uidsize"
7940 From uidsize.U:
7941 This variable contains the size of a uidtype in bytes.
7943 "uidtype"
7945 From uidtype.U:
7946 This variable defines Uid_t to be something like uid_t, int,
7948 ushort, or whatever type is used to declare user ids in the kernel.
7949 "uname"
7951 From Loc.U:
7952 This variable is used internally by Configure to determine the full
7954 pathname (if any) of the uname program. After Configure runs, the
7955 value is reset to a plain "uname" and is not useful.
7956 "uniq"
7958 From Loc.U:
7959 This variable is used internally by Configure to determine the full
7961 pathname (if any) of the uniq program. After Configure runs, the
7962 value is reset to a plain "uniq" and is not useful.
7963 "uquadtype"
7965 From quadtype.U:
7966 This variable defines Uquad_t to be something like unsigned long,
7968 unsigned int, unsigned long long, uint64_t, or whatever type is
7969 used for 64-bit integers.
7970 "use5005threads"
7972 From usethreads.U:
7973 This variable conditionally defines the USE_5005THREADS symbol, and
7975 indicates that Perl should be built to use the 5.005-based
7976 threading implementation. Only valid up to 5.8.x.
7977 "use64bitall"
7979 From use64bits.U:
7980 This variable conditionally defines the USE_64_BIT_ALL symbol, and
7982 indicates that 64-bit integer types should be used when available.
7983 The maximal possible 64-bitness is employed: LP64 or ILP64, meaning
7984 that you will be able to use more than 2 gigabytes of memory. This
7985 mode is even more binary incompatible than USE_64_BIT_INT. You may
7986 not be able to run the resulting executable in a 32-bit "CPU" at
7987 all or you may need at least to reboot your "OS" to 64-bit mode.
7988 "use64bitint"
7990 From use64bits.U:
7991 This variable conditionally defines the USE_64_BIT_INT symbol, and
7993 indicates that 64-bit integer types should be used when available.
7994 The minimal possible 64-bitness is employed, just enough to get
7995 64-bit integers into Perl. This may mean using for example "long
7996 longs", while your memory may still be limited to 2 gigabytes.
7997 "usecbacktrace"
7999 From usebacktrace.U:
8000 This variable indicates whether we are compiling with backtrace
8002 support.
8003 "usecrosscompile"
8005 From Cross.U:
8006 This variable conditionally defines the "USE_CROSS_COMPILE" symbol,
8008 and indicates that Perl has been cross-compiled.
8009 "usedevel"
8011 From Devel.U:
8012 This variable indicates that Perl was configured with development
8014 features enabled. This should not be done for production builds.
8015 "usedl"
8017 From dlsrc.U:
8018 This variable indicates if the system supports dynamic loading of
8020 some sort. See also dlsrc and dlobj.
8021 "usedtrace"
8023 From usedtrace.U:
8024 This variable indicates whether we are compiling with dtrace
8026 support. See also dtrace.
8027 "usefaststdio"
8029 From usefaststdio.U:
8030 This variable conditionally defines the "USE_FAST_STDIO" symbol,
8032 and indicates that Perl should be built to use "fast stdio".
8033 Defaults to define in Perls 5.8 and earlier, to undef later.
8034 "useithreads"
8036 From usethreads.U:
8037 This variable conditionally defines the "USE_ITHREADS" symbol, and
8039 indicates that Perl should be built to use the interpreter-based
8040 threading implementation.
8041 "usekernprocpathname"
8043 From usekernprocpathname.U:
8044 This variable, indicates that we can use sysctl with
8046 "KERN_PROC_PATHNAME" to get a full path for the executable, and
8047 hence convert $^X to an absolute path.
8048 "uselargefiles"
8050 From uselfs.U:
8051 This variable conditionally defines the "USE_LARGE_FILES" symbol,
8053 and indicates that large file interfaces should be used when
8054 available.
8055 "uselongdouble"
8057 From uselongdbl.U:
8058 This variable conditionally defines the "USE_LONG_DOUBLE" symbol,
8060 and indicates that long doubles should be used when available.
8061 "usemallocwrap"
8063 From mallocsrc.U:
8064 This variable contains y if we are wrapping malloc to prevent
8066 integer overflow during size calculations.
8067 "usemorebits"
8069 From usemorebits.U:
8070 This variable conditionally defines the "USE_MORE_BITS" symbol, and
8072 indicates that explicit 64-bit interfaces and long doubles should
8073 be used when available.
8074 "usemultiplicity"
8076 From usemultiplicity.U:
8077 This variable conditionally defines the "MULTIPLICITY" symbol, and
8079 indicates that Perl should be built to use multiplicity.
8080 "usemymalloc"
8082 From mallocsrc.U:
8083 This variable contains y if the malloc that comes with this package
8085 is desired over the system's version of malloc. People often
8086 include special versions of malloc for efficiency, but such
8087 versions are often less portable. See also mallocsrc and
8088 mallocobj. If this is "y", then -lmalloc is removed from $libs.
8089 "usenm"
8091 From usenm.U:
8092 This variable contains "true" or "false" depending whether the nm
8094 extraction is wanted or not.
8095 "usensgetexecutablepath"
8097 From usensgetexecutablepath.U:
8098 This symbol, if defined, indicates that we can use
8100 _NSGetExecutablePath and realpath to get a full path for the
8101 executable, and hence convert $^X to an absolute path.
8102 "useopcode"
8104 From Extensions.U:
8105 This variable holds either "true" or "false" to indicate whether
8107 the Opcode extension should be used. The sole use for this
8108 currently is to allow an easy mechanism for users to skip the
8109 Opcode extension from the Configure command line.
8110 "useperlio"
8112 From useperlio.U:
8113 This variable conditionally defines the "USE_PERLIO" symbol, and
8115 indicates that the PerlIO abstraction should be used throughout.
8116 "useposix"
8118 From Extensions.U:
8119 This variable holds either "true" or "false" to indicate whether
8121 the "POSIX" extension should be used. The sole use for this
8122 currently is to allow an easy mechanism for hints files to indicate
8123 that "POSIX" will not compile on a particular system.
8124 "usequadmath"
8126 From usequadmath.U:
8127 This variable conditionally defines the "USE_QUADMATH" symbol, and
8129 indicates that the quadmath library __float128 long doubles should
8130 be used when available.
8131 "usereentrant"
8133 From usethreads.U:
8134 This variable conditionally defines the "USE_REENTRANT_API" symbol,
8136 which indicates that the thread code may try to use the various _r
8137 versions of library functions. This is only potentially meaningful
8138 if usethreads is set and is very experimental, it is not even
8139 prompted for.
8140 "userelocatableinc"
8142 From bin.U:
8143 This variable is set to true to indicate that perl should relocate
8145 @"INC" entries at runtime based on the path to the perl binary.
8146 Any @"INC" paths starting .../ are relocated relative to the
8147 directory containing the perl binary, and a logical cleanup of the
8148 path is then made around the join point (removing dir/../ pairs)
8149 "useshrplib"
8151 From libperl.U:
8152 This variable is set to "true" if the user wishes to build a shared
8154 libperl, and "false" otherwise.
8155 "usesitecustomize"
8157 From d_sitecustomize.U:
8158 This variable is set to true when the user requires a mechanism
8160 that allows the sysadmin to add entries to @"INC" at runtime. This
8161 variable being set, makes perl run $sitelib/sitecustomize.pl at
8162 startup.
8163 "usesocks"
8165 From usesocks.U:
8166 This variable conditionally defines the "USE_SOCKS" symbol, and
8168 indicates that Perl should be built to use "SOCKS".
8169 "usethreads"
8171 From usethreads.U:
8172 This variable conditionally defines the "USE_THREADS" symbol, and
8174 indicates that Perl should be built to use threads.
8175 "usevendorprefix"
8177 From vendorprefix.U:
8178 This variable tells whether the vendorprefix and consequently other
8180 vendor* paths are in use.
8181 "useversionedarchname"
8183 From archname.U:
8184 This variable indicates whether to include the $api_versionstring
8186 as a component of the $archname.
8187 "usevfork"
8189 From d_vfork.U:
8190 This variable is set to true when the user accepts to use vfork.
8192 It is set to false when no vfork is available or when the user
8193 explicitly requests not to use vfork.
8194 "usrinc"
8196 From usrinc.U:
8197 This variable holds the path of the include files, which is usually
8199 /usr/include. It is mainly used by other Configure units.
8200 "uuname"
8202 From Loc.U:
8203 This variable is defined but not used by Configure. The value is
8205 the empty string and is not useful.
8206 "uvoformat"
8208 From perlxvf.U:
8209 This variable contains the format string used for printing a Perl
8211 "UV" as an unsigned octal integer.
8212 "uvsize"
8214 From perlxv.U:
8215 This variable is the size of a "UV" in bytes.
8217 "uvtype"
8219 From perlxv.U:
8220 This variable contains the C type used for Perl's "UV".
8222 "uvuformat"
8224 From perlxvf.U:
8225 This variable contains the format string used for printing a Perl
8227 "UV" as an unsigned decimal integer.
8228 "uvxformat"
8230 From perlxvf.U:
8231 This variable contains the format string used for printing a Perl
8233 "UV" as an unsigned hexadecimal integer in lowercase abcdef.
8234 "uvXUformat"
8236 From perlxvf.U:
8237 This variable contains the format string used for printing a Perl
8239 "UV" as an unsigned hexadecimal integer in uppercase "ABCDEF".
8240 v
8242 "vaproto"
8243 From vaproto.U:
8244 This variable conditionally defines "CAN_VAPROTO" on systems
8246 supporting prototype declaration of functions with a variable
8247 number of arguments. See also prototype.
8248 "vendorarch"
8250 From vendorarch.U:
8251 This variable contains the value of the "PERL_VENDORARCH" symbol.
8253 It may have a ~ on the front. The standard distribution will put
8254 nothing in this directory. Vendors who distribute perl may wish to
8255 place their own architecture-dependent modules and extensions in
8256 this directory with MakeMaker Makefile.PL "INSTALLDIRS"=vendor or
8257 equivalent. See "INSTALL" for details.
8258 "vendorarchexp"
8260 From vendorarch.U:
8261 This variable is the ~name expanded version of vendorarch, so that
8263 you may use it directly in Makefiles or shell scripts.
8264 "vendorbin"
8266 From vendorbin.U:
8267 This variable contains the eventual value of the "VENDORBIN"
8269 symbol. It may have a ~ on the front. The standard distribution
8270 will put nothing in this directory. Vendors who distribute perl
8271 may wish to place additional binaries in this directory with
8272 MakeMaker Makefile.PL "INSTALLDIRS"=vendor or equivalent. See
8273 "INSTALL" for details.
8274 "vendorbinexp"
8276 From vendorbin.U:
8277 This variable is the ~name expanded version of vendorbin, so that
8279 you may use it directly in Makefiles or shell scripts.
8280 "vendorhtml1dir"
8282 From vendorhtml1dir.U:
8283 This variable contains the name of the directory for html pages.
8285 It may have a ~ on the front. The standard distribution will put
8286 nothing in this directory. Vendors who distribute perl may wish to
8287 place their own html pages in this directory with MakeMaker
8288 Makefile.PL "INSTALLDIRS"=vendor or equivalent. See "INSTALL" for
8289 details.
8290 "vendorhtml1direxp"
8292 From vendorhtml1dir.U:
8293 This variable is the ~name expanded version of vendorhtml1dir, so
8295 that you may use it directly in Makefiles or shell scripts.
8296 "vendorhtml3dir"
8298 From vendorhtml3dir.U:
8299 This variable contains the name of the directory for html library
8301 pages. It may have a ~ on the front. The standard distribution
8302 will put nothing in this directory. Vendors who distribute perl
8303 may wish to place their own html pages for modules and extensions
8304 in this directory with MakeMaker Makefile.PL "INSTALLDIRS"=vendor
8305 or equivalent. See "INSTALL" for details.
8306 "vendorhtml3direxp"
8308 From vendorhtml3dir.U:
8309 This variable is the ~name expanded version of vendorhtml3dir, so
8311 that you may use it directly in Makefiles or shell scripts.
8312 "vendorlib"
8314 From vendorlib.U:
8315 This variable contains the eventual value of the "VENDORLIB"
8317 symbol, which is the name of the private library for this package.
8318 The standard distribution will put nothing in this directory.
8319 Vendors who distribute perl may wish to place their own modules in
8320 this directory with MakeMaker Makefile.PL "INSTALLDIRS"=vendor or
8321 equivalent. See "INSTALL" for details.
8322 "vendorlib_stem"
8324 From vendorlib.U:
8325 This variable is $vendorlibexp with any trailing version-specific
8327 component removed. The elements in inc_version_list
8328 (inc_version_list.U) can be tacked onto this variable to generate a
8329 list of directories to search.
8330 "vendorlibexp"
8332 From vendorlib.U:
8333 This variable is the ~name expanded version of vendorlib, so that
8335 you may use it directly in Makefiles or shell scripts.
8336 "vendorman1dir"
8338 From vendorman1dir.U:
8339 This variable contains the name of the directory for man1 pages.
8341 It may have a ~ on the front. The standard distribution will put
8342 nothing in this directory. Vendors who distribute perl may wish to
8343 place their own man1 pages in this directory with MakeMaker
8344 Makefile.PL "INSTALLDIRS"=vendor or equivalent. See "INSTALL" for
8345 details.
8346 "vendorman1direxp"
8348 From vendorman1dir.U:
8349 This variable is the ~name expanded version of vendorman1dir, so
8351 that you may use it directly in Makefiles or shell scripts.
8352 "vendorman3dir"
8354 From vendorman3dir.U:
8355 This variable contains the name of the directory for man3 pages.
8357 It may have a ~ on the front. The standard distribution will put
8358 nothing in this directory. Vendors who distribute perl may wish to
8359 place their own man3 pages in this directory with MakeMaker
8360 Makefile.PL "INSTALLDIRS"=vendor or equivalent. See "INSTALL" for
8361 details.
8362 "vendorman3direxp"
8364 From vendorman3dir.U:
8365 This variable is the ~name expanded version of vendorman3dir, so
8367 that you may use it directly in Makefiles or shell scripts.
8368 "vendorprefix"
8370 From vendorprefix.U:
8371 This variable holds the full absolute path of the directory below
8373 which the vendor will install add-on packages. See "INSTALL" for
8374 usage and examples.
8375 "vendorprefixexp"
8377 From vendorprefix.U:
8378 This variable holds the full absolute path of the directory below
8380 which the vendor will install add-on packages. Derived from
8381 vendorprefix.
8382 "vendorscript"
8384 From vendorscript.U:
8385 This variable contains the eventual value of the "VENDORSCRIPT"
8387 symbol. It may have a ~ on the front. The standard distribution
8388 will put nothing in this directory. Vendors who distribute perl
8389 may wish to place additional executable scripts in this directory
8390 with MakeMaker Makefile.PL "INSTALLDIRS"=vendor or equivalent. See
8391 "INSTALL" for details.
8392 "vendorscriptexp"
8394 From vendorscript.U:
8395 This variable is the ~name expanded version of vendorscript, so
8397 that you may use it directly in Makefiles or shell scripts.
8398 "version"
8400 From patchlevel.U:
8401 The full version number of this package, such as 5.6.1 (or 5_6_1).
8403 This combines revision, patchlevel, and subversion to get the full
8404 version number, including any possible subversions. This is
8405 suitable for use as a directory name, and hence is filesystem
8406 dependent.
8407 "version_patchlevel_string"
8409 From patchlevel.U:
8410 This is a string combining version, subversion and perl_patchlevel
8412 (if perl_patchlevel is non-zero). It is typically something like
8413 'version 7 subversion 1' or 'version 7 subversion 1 patchlevel
8414 11224' It is computed here to avoid duplication of code in
8415 myconfig.SH and lib/Config.pm.
8416 "versiononly"
8418 From versiononly.U:
8419 If set, this symbol indicates that only the version-specific
8421 components of a perl installation should be installed. This may be
8422 useful for making a test installation of a new version without
8423 disturbing the existing installation. Setting versiononly is
8424 equivalent to setting installperl's -v option. In particular, the
8425 non-versioned scripts and programs such as a2p, c2ph, h2xs, pod2*,
8426 and perldoc are not installed (see "INSTALL" for a more complete
8427 list). Nor are the man pages installed. Usually, this is undef.
8428 "vi"
8430 From Loc.U:
8431 This variable is defined but not used by Configure. The value is
8433 the empty string and is not useful.
8434 x
8436 "xlibpth"
8437 From libpth.U:
8438 This variable holds extra path (space-separated) used to find
8440 libraries on this platform, for example "CPU"-specific libraries
8441 (on multi-"CPU" platforms) may be listed here.
8442 y
8444 "yacc"
8445 From yacc.U:
8446 This variable holds the name of the compiler compiler we want to
8448 use in the Makefile. It can be yacc, byacc, or bison -y.
8449 "yaccflags"
8451 From yacc.U:
8452 This variable contains any additional yacc flags desired by the
8454 user. It is up to the Makefile to use this.
8455 z
8457 "zcat"
8458 From Loc.U:
8459 This variable is defined but not used by Configure. The value is
8461 the empty string and is not useful.
8462 "zip"
8464 From Loc.U:
8465 This variable is used internally by Configure to determine the full
8467 pathname (if any) of the zip program. After Configure runs, the
8468 value is reset to a plain "zip" and is not useful.
8469
8471 Information on the git commit from which the current perl binary was
8472 compiled can be found in the variable $Config::Git_Data. The variable
8473 is a structured string that looks something like this:
8474 git_commit_id='ea0c2dbd5f5ac6845ecc7ec6696415bf8e27bd52'
8476 git_describe='GitLive-blead-1076-gea0c2db'
8477 git_branch='smartmatch'
8478 git_uncommitted_changes=''
8479 git_commit_id_title='Commit id:'
8480 git_commit_date='2009-05-09 17:47:31 +0200'
8481 Its format is not guaranteed not to change over time.
8483
8485 This module contains a good example of how to use tie to implement a
8486 cache and an example of how to make a tied variable readonly to those
8487 outside of it.
8488perl v5.26.3 2019-05-11 Config(3pm)