1Config(3pm) Perl Programmers Reference Guide Config(3pm)
2
6 Config - access Perl configuration information
7
9 use Config;
10 if ($Config{usethreads}) {
11 print "has thread support\n"
12 }
13 use Config qw(myconfig config_sh config_vars config_re);
15 print myconfig();
17 print config_sh();
19 print config_re();
21 config_vars(qw(osname archname));
23
25 The Config module contains all the information that was available to
26 the "Configure" program at Perl build time (over 900 values).
27 Shell variables from the config.sh file (written by Configure) are
29 stored in the readonly-variable %Config, indexed by their names.
30 Values stored in config.sh as 'undef' are returned as undefined values.
32 The perl "exists" function can be used to check if a named variable
33 exists.
34 For a description of the variables, please have a look at the Glossary
36 file, as written in the Porting folder, or use the url:
37 https://github.com/Perl/perl5/blob/blead/Porting/Glossary
38 myconfig()
40 Returns a textual summary of the major perl configuration values.
41 See also "-V" in "Command Switches" in perlrun.
42 config_sh()
44 Returns the entire perl configuration information in the form of
45 the original config.sh shell variable assignment script.
46 config_re($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 "aphostname"
181 From d_gethname.U:
182 This variable contains the command which can be used to compute the
184 host name. The command is fully qualified by its absolute path, to
185 make it safe when used by a process with super-user privileges.
186 "api_revision"
188 From patchlevel.U:
189 The three variables, api_revision, api_version, and api_subversion,
191 specify the version of the oldest perl binary compatible with the
192 present perl. In a full version string such as 5.6.1, api_revision
193 is the 5. Prior to 5.5.640, the format was a floating point
194 number, like 5.00563.
195 perl.c:incpush() and lib/lib.pm will automatically search in
197 $sitelib/.. for older directories back to the limit specified by
198 these api_ variables. This is only useful if you have a perl
199 library directory tree structured like the default one. See
200 "INSTALL" for how this works. The versioned site_perl directory
201 was introduced in 5.005, so that is the lowest possible value. The
202 version list appropriate for the current system is determined in
203 inc_version_list.U.
204 "XXX" To do: Since compatibility can depend on compile time
206 options (such as bincompat, longlong, etc.) it should (perhaps) be
207 set by Configure, but currently it isn't. Currently, we read a
208 hard-wired value from patchlevel.h. Perhaps what we ought to do is
209 take the hard-wired value from patchlevel.h but then modify it if
210 the current Configure options warrant. patchlevel.h then would use
211 an #ifdef guard.
212 "api_subversion"
214 From patchlevel.U:
215 The three variables, api_revision, api_version, and api_subversion,
217 specify the version of the oldest perl binary compatible with the
218 present perl. In a full version string such as 5.6.1,
219 api_subversion is the 1. See api_revision for full details.
220 "api_version"
222 From patchlevel.U:
223 The three variables, api_revision, api_version, and api_subversion,
225 specify the version of the oldest perl binary compatible with the
226 present perl. In a full version string such as 5.6.1, api_version
227 is the 6. See api_revision for full details. As a special case,
228 5.5.0 is rendered in the old-style as 5.005. (In the 5.005_0x
229 maintenance series, this was the only versioned directory in
230 $sitelib.)
231 "api_versionstring"
233 From patchlevel.U:
234 This variable combines api_revision, api_version, and
236 api_subversion in a format such as 5.6.1 (or 5_6_1) suitable for
237 use as a directory name. This is filesystem dependent.
238 "ar"
240 From Loc.U:
241 This variable is used internally by Configure to determine the full
243 pathname (if any) of the ar program. After Configure runs, the
244 value is reset to a plain "ar" and is not useful.
245 "archlib"
247 From archlib.U:
248 This variable holds the name of the directory in which the user
250 wants to put architecture-dependent public library files for
251 $package. It is most often a local directory such as
252 /usr/local/lib. Programs using this variable must be prepared to
253 deal with filename expansion.
254 "archlibexp"
256 From archlib.U:
257 This variable is the same as the archlib variable, but is filename
259 expanded at configuration time, for convenient use.
260 "archname"
262 From archname.U:
263 This variable is a short name to characterize the current
265 architecture. It is used mainly to construct the default archlib.
266 "archname64"
268 From use64bits.U:
269 This variable is used for the 64-bitness part of $archname.
271 "archobjs"
273 From Unix.U:
274 This variable defines any additional objects that must be linked in
276 with the program on this architecture. On unix, it is usually
277 empty. It is typically used to include emulations of unix calls or
278 other facilities. For perl on OS/2, for example, this would
279 include os2/os2.obj.
280 "asctime_r_proto"
282 From d_asctime_r.U:
283 This variable encodes the prototype of asctime_r. It is zero if
285 d_asctime_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
286 of reentr.h if d_asctime_r is defined.
287 "awk"
289 From Loc.U:
290 This variable is used internally by Configure to determine the full
292 pathname (if any) of the awk program. After Configure runs, the
293 value is reset to a plain "awk" and is not useful.
294 b
296 "baserev"
297 From baserev.U:
298 The base revision level of this package, from the .package file.
300 "bash"
302 From Loc.U:
303 This variable is defined but not used by Configure. The value is
305 the empty string and is not useful.
306 "bin"
308 From bin.U:
309 This variable holds the name of the directory in which the user
311 wants to put publicly executable images for the package in
312 question. It is most often a local directory such as
313 /usr/local/bin. Programs using this variable must be prepared to
314 deal with ~name substitution.
315 "bin_ELF"
317 From dlsrc.U:
318 This variable saves the result from configure if generated binaries
320 are in "ELF" format. Only set to defined when the test has actually
321 been performed, and the result was positive.
322 "binexp"
324 From bin.U:
325 This is the same as the bin variable, but is filename expanded at
327 configuration time, for use in your makefiles.
328 "bison"
330 From Loc.U:
331 This variable is used internally by Configure to determine the full
333 pathname (if any) of the bison program. After Configure runs, the
334 value is reset to a plain "bison" and is not useful.
335 "byacc"
337 From Loc.U:
338 This variable is used internally by Configure to determine the full
340 pathname (if any) of the byacc program. After Configure runs, the
341 value is reset to a plain "byacc" and is not useful.
342 "byteorder"
344 From byteorder.U:
345 This variable holds the byte order in a "UV". In the following,
347 larger digits indicate more significance. The variable byteorder
348 is either 4321 on a big-endian machine, or 1234 on a little-endian,
349 or 87654321 on a Cray ... or 3412 with weird order !
350 c
352 "c" From n.U:
353 This variable contains the \c string if that is what causes the
355 echo command to suppress newline. Otherwise it is null. Correct
356 usage is $echo $n "prompt for a question: $c".
357 "castflags"
359 From d_castneg.U:
360 This variable contains a flag that precise difficulties the
362 compiler has casting odd floating values to unsigned long: 0 = ok 1
363 = couldn't cast < 0 2 = couldn't cast >= 0x80000000 4 = couldn't
364 cast in argument expression list
365 "cat"
367 From Loc.U:
368 This variable is used internally by Configure to determine the full
370 pathname (if any) of the cat program. After Configure runs, the
371 value is reset to a plain "cat" and is not useful.
372 "cc"
374 From cc.U:
375 This variable holds the name of a command to execute a C compiler
377 which can resolve multiple global references that happen to have
378 the same name. Usual values are "cc" and "gcc". Fervent "ANSI"
379 compilers may be called "c89". "AIX" has xlc.
380 "cccdlflags"
382 From dlsrc.U:
383 This variable contains any special flags that might need to be
385 passed with "cc -c" to compile modules to be used to create a
386 shared library that will be used for dynamic loading. For hpux,
387 this should be +z. It is up to the makefile to use it.
388 "ccdlflags"
390 From dlsrc.U:
391 This variable contains any special flags that might need to be
393 passed to cc to link with a shared library for dynamic loading. It
394 is up to the makefile to use it. For sunos 4.1, it should be
395 empty.
396 "ccflags"
398 From ccflags.U:
399 This variable contains any additional C compiler flags desired by
401 the user. It is up to the Makefile to use this.
402 "ccflags_uselargefiles"
404 From uselfs.U:
405 This variable contains the compiler flags needed by large file
407 builds and added to ccflags by hints files.
408 "ccname"
410 From Checkcc.U:
411 This can set either by hints files or by Configure. If using gcc,
413 this is gcc, and if not, usually equal to cc, unimpressive, no?
414 Some platforms, however, make good use of this by storing the
415 flavor of the C compiler being used here. For example if using the
416 Sun WorkShop suite, ccname will be "workshop".
417 "ccsymbols"
419 From Cppsym.U:
420 The variable contains the symbols defined by the C compiler alone.
422 The symbols defined by cpp or by cc when it calls cpp are not in
423 this list, see cppsymbols and cppccsymbols. The list is a space-
424 separated list of symbol=value tokens.
425 "ccversion"
427 From Checkcc.U:
428 This can set either by hints files or by Configure. If using a
430 (non-gcc) vendor cc, this variable may contain a version for the
431 compiler.
432 "cf_by"
434 From cf_who.U:
435 Login name of the person who ran the Configure script and answered
437 the questions. This is used to tag both config.sh and config_h.SH.
438 "cf_email"
440 From cf_email.U:
441 Electronic mail address of the person who ran Configure. This can
443 be used by units that require the user's e-mail, like MailList.U.
444 "cf_time"
446 From cf_who.U:
447 Holds the output of the "date" command when the configuration file
449 was produced. This is used to tag both config.sh and config_h.SH.
450 "charbits"
452 From charsize.U:
453 This variable contains the value of the "CHARBITS" symbol, which
455 indicates to the C program how many bits there are in a character.
456 "charsize"
458 From charsize.U:
459 This variable contains the value of the "CHARSIZE" symbol, which
461 indicates to the C program how many bytes there are in a character.
462 "chgrp"
464 From Loc.U:
465 This variable is defined but not used by Configure. The value is
467 the empty string and is not useful.
468 "chmod"
470 From Loc.U:
471 This variable is used internally by Configure to determine the full
473 pathname (if any) of the chmod program. After Configure runs, the
474 value is reset to a plain "chmod" and is not useful.
475 "chown"
477 From Loc.U:
478 This variable is defined but not used by Configure. The value is
480 the empty string and is not useful.
481 "clocktype"
483 From d_times.U:
484 This variable holds the type returned by times(). It can be long,
486 or clock_t on "BSD" sites (in which case <sys/types.h> should be
487 included).
488 "comm"
490 From Loc.U:
491 This variable is used internally by Configure to determine the full
493 pathname (if any) of the comm program. After Configure runs, the
494 value is reset to a plain "comm" and is not useful.
495 "compress"
497 From Loc.U:
498 This variable is defined but not used by Configure. The value is
500 the empty string and is not useful.
501 "config_arg0"
503 From Options.U:
504 This variable contains the string used to invoke the Configure
506 command, as reported by the shell in the $0 variable.
507 "config_argc"
509 From Options.U:
510 This variable contains the number of command-line arguments passed
512 to Configure, as reported by the shell in the $# variable. The
513 individual arguments are stored as variables config_arg1,
514 config_arg2, etc.
515 "config_args"
517 From Options.U:
518 This variable contains a single string giving the command-line
520 arguments passed to Configure. Spaces within arguments, quotes, and
521 escaped characters are not correctly preserved. To reconstruct the
522 command line, you must assemble the individual command line pieces,
523 given in config_arg[0-9]*.
524 "contains"
526 From contains.U:
527 This variable holds the command to do a grep with a proper return
529 status. On most sane systems it is simply "grep". On insane
530 systems it is a grep followed by a cat followed by a test. This
531 variable is primarily for the use of other Configure units.
532 "cp"
534 From Loc.U:
535 This variable is used internally by Configure to determine the full
537 pathname (if any) of the cp program. After Configure runs, the
538 value is reset to a plain "cp" and is not useful.
539 "cpio"
541 From Loc.U:
542 This variable is defined but not used by Configure. The value is
544 the empty string and is not useful.
545 "cpp"
547 From Loc.U:
548 This variable is used internally by Configure to determine the full
550 pathname (if any) of the cpp program. After Configure runs, the
551 value is reset to a plain "cpp" and is not useful.
552 "cpp_stuff"
554 From cpp_stuff.U:
555 This variable contains an identification of the concatenation
557 mechanism used by the C preprocessor.
558 "cppccsymbols"
560 From Cppsym.U:
561 The variable contains the symbols defined by the C compiler when it
563 calls cpp. The symbols defined by the cc alone or cpp alone are
564 not in this list, see ccsymbols and cppsymbols. The list is a
565 space-separated list of symbol=value tokens.
566 "cppflags"
568 From ccflags.U:
569 This variable holds the flags that will be passed to the C pre-
571 processor. It is up to the Makefile to use it.
572 "cpplast"
574 From cppstdin.U:
575 This variable has the same functionality as cppminus, only it
577 applies to cpprun and not cppstdin.
578 "cppminus"
580 From cppstdin.U:
581 This variable contains the second part of the string which will
583 invoke the C preprocessor on the standard input and produce to
584 standard output. This variable will have the value "-" if cppstdin
585 needs a minus to specify standard input, otherwise the value is "".
586 "cpprun"
588 From cppstdin.U:
589 This variable contains the command which will invoke a C
591 preprocessor on standard input and put the output to stdout. It is
592 guaranteed not to be a wrapper and may be a null string if no
593 preprocessor can be made directly available. This preprocessor
594 might be different from the one used by the C compiler. Don't
595 forget to append cpplast after the preprocessor options.
596 "cppstdin"
598 From cppstdin.U:
599 This variable contains the command which will invoke the C
601 preprocessor on standard input and put the output to stdout. It is
602 primarily used by other Configure units that ask about preprocessor
603 symbols.
604 "cppsymbols"
606 From Cppsym.U:
607 The variable contains the symbols defined by the C preprocessor
609 alone. The symbols defined by cc or by cc when it calls cpp are
610 not in this list, see ccsymbols and cppccsymbols. The list is a
611 space-separated list of symbol=value tokens.
612 "crypt_r_proto"
614 From d_crypt_r.U:
615 This variable encodes the prototype of crypt_r. It is zero if
617 d_crypt_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
618 of reentr.h if d_crypt_r is defined.
619 "cryptlib"
621 From d_crypt.U:
622 This variable holds -lcrypt or the path to a libcrypt.a archive if
624 the crypt() function is not defined in the standard C library. It
625 is up to the Makefile to use this.
626 "csh"
628 From Loc.U:
629 This variable is used internally by Configure to determine the full
631 pathname (if any) of the csh program. After Configure runs, the
632 value is reset to a plain "csh" and is not useful.
633 "ctermid_r_proto"
635 From d_ctermid_r.U:
636 This variable encodes the prototype of ctermid_r. It is zero if
638 d_ctermid_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
639 of reentr.h if d_ctermid_r is defined.
640 "ctime_r_proto"
642 From d_ctime_r.U:
643 This variable encodes the prototype of ctime_r. It is zero if
645 d_ctime_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
646 of reentr.h if d_ctime_r is defined.
647 d
649 "d__fwalk"
650 From d__fwalk.U:
651 This variable conditionally defines "HAS__FWALK" if _fwalk() is
653 available to apply a function to all the file handles.
654 "d_accept4"
656 From d_accept4.U:
657 This variable conditionally defines HAS_ACCEPT4 if accept4() is
659 available to accept socket connections.
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_bsd"
804 From Guess.U:
805 This symbol conditionally defines the symbol "BSD" when running on
807 a "BSD" system.
808 "d_bsdgetpgrp"
810 From d_getpgrp.U:
811 This variable conditionally defines "USE_BSD_GETPGRP" if getpgrp
813 needs one arguments whereas "USG" one needs none.
814 "d_bsdsetpgrp"
816 From d_setpgrp.U:
817 This variable conditionally defines "USE_BSD_SETPGRP" if setpgrp
819 needs two arguments whereas "USG" one needs none. See also
820 d_setpgid for a "POSIX" interface.
821 "d_builtin_add_overflow"
823 From d_builtin_overflow.U:
824 This variable conditionally defines "HAS_BUILTIN_ADD_OVERFLOW",
826 which indicates that the compiler supports
827 __builtin_add_overflow(x,y,&z) for safely adding x and y into z
828 while checking for overflow.
829 "d_builtin_choose_expr"
831 From d_builtin.U:
832 This conditionally defines "HAS_BUILTIN_CHOOSE_EXPR", which
834 indicates that the compiler supports __builtin_choose_expr(x,y,z).
835 This built-in function is analogous to the "x?y:z" operator in C,
836 except that the expression returned has its type unaltered by
837 promotion rules. Also, the built-in function does not evaluate the
838 expression that was not chosen.
839 "d_builtin_expect"
841 From d_builtin.U:
842 This conditionally defines "HAS_BUILTIN_EXPECT", which indicates
844 that the compiler supports __builtin_expect(exp,c). You may use
845 __builtin_expect to provide the compiler with branch prediction
846 information.
847 "d_builtin_mul_overflow"
849 From d_builtin_overflow.U:
850 This variable conditionally defines "HAS_BUILTIN_MUL_OVERFLOW",
852 which indicates that the compiler supports
853 __builtin_mul_overflow(x,y,&z) for safely multiplying x and y into
854 z while checking for overflow.
855 "d_builtin_sub_overflow"
857 From d_builtin_overflow.U:
858 This variable conditionally defines "HAS_BUILTIN_SUB_OVERFLOW",
860 which indicates that the compiler supports
861 __builtin_sub_overflow(x,y,&z) for safely subtracting y from x into
862 z while checking for overflow.
863 "d_c99_variadic_macros"
865 From d_c99_variadic.U:
866 This variable conditionally defines the HAS_C99_VARIADIC_MACROS
868 symbol, which indicates to the C program that C99 variadic macros
869 are available.
870 "d_casti32"
872 From d_casti32.U:
873 This variable conditionally defines CASTI32, which indicates
875 whether the C compiler can cast large floats to 32-bit ints.
876 "d_castneg"
878 From d_castneg.U:
879 This variable conditionally defines "CASTNEG", which indicates
881 whether the C compiler can cast negative float to unsigned.
882 "d_cbrt"
884 From d_cbrt.U:
885 This variable conditionally defines the "HAS_CBRT" symbol, which
887 indicates to the C program that the cbrt() (cube root) function is
888 available.
889 "d_chown"
891 From d_chown.U:
892 This variable conditionally defines the "HAS_CHOWN" symbol, which
894 indicates to the C program that the chown() routine is available.
895 "d_chroot"
897 From d_chroot.U:
898 This variable conditionally defines the "HAS_CHROOT" symbol, which
900 indicates to the C program that the chroot() routine is available.
901 "d_chsize"
903 From d_chsize.U:
904 This variable conditionally defines the "CHSIZE" symbol, which
906 indicates to the C program that the chsize() routine is available
907 to truncate files. You might need a -lx to get this routine.
908 "d_class"
910 From d_class.U:
911 This variable conditionally defines the "HAS_CLASS" symbol, which
913 indicates to the C program that the class() routine is available.
914 "d_clearenv"
916 From d_clearenv.U:
917 This variable conditionally defines the "HAS_CLEARENV" symbol,
919 which indicates to the C program that the clearenv () routine is
920 available.
921 "d_closedir"
923 From d_closedir.U:
924 This variable conditionally defines "HAS_CLOSEDIR" if closedir() is
926 available.
927 "d_cmsghdr_s"
929 From d_cmsghdr_s.U:
930 This variable conditionally defines the "HAS_STRUCT_CMSGHDR"
932 symbol, which indicates that the struct cmsghdr is supported.
933 "d_copysign"
935 From d_copysign.U:
936 This variable conditionally defines the "HAS_COPYSIGN" symbol,
938 which indicates to the C program that the copysign() routine is
939 available.
940 "d_copysignl"
942 From d_copysignl.U:
943 This variable conditionally defines the "HAS_COPYSIGNL" symbol,
945 which indicates to the C program that the copysignl() routine is
946 available. If aintl is also present we can emulate modfl.
947 "d_cplusplus"
949 From d_cplusplus.U:
950 This variable conditionally defines the "USE_CPLUSPLUS" symbol,
952 which indicates that a C++ compiler was used to compiled Perl and
953 will be used to compile extensions.
954 "d_crypt"
956 From d_crypt.U:
957 This variable conditionally defines the "CRYPT" symbol, which
959 indicates to the C program that the crypt() routine is available to
960 encrypt passwords and the like.
961 "d_crypt_r"
963 From d_crypt_r.U:
964 This variable conditionally defines the "HAS_CRYPT_R" symbol, which
966 indicates to the C program that the crypt_r() routine is available.
967 "d_csh"
969 From d_csh.U:
970 This variable conditionally defines the "CSH" symbol, which
972 indicates to the C program that the C-shell exists.
973 "d_ctermid"
975 From d_ctermid.U:
976 This variable conditionally defines "CTERMID" if ctermid() is
978 available to generate filename for terminal.
979 "d_ctermid_r"
981 From d_ctermid_r.U:
982 This variable conditionally defines the "HAS_CTERMID_R" symbol,
984 which indicates to the C program that the ctermid_r() routine is
985 available.
986 "d_ctime64"
988 From d_timefuncs64.U:
989 This variable conditionally defines the HAS_CTIME64 symbol, which
991 indicates to the C program that the ctime64 () routine is
992 available.
993 "d_ctime_r"
995 From d_ctime_r.U:
996 This variable conditionally defines the "HAS_CTIME_R" symbol, which
998 indicates to the C program that the ctime_r() routine is available.
999 "d_cuserid"
1001 From d_cuserid.U:
1002 This variable conditionally defines the "HAS_CUSERID" symbol, which
1004 indicates to the C program that the cuserid() routine is available
1005 to get character login names.
1006 "d_dbminitproto"
1008 From d_dbminitproto.U:
1009 This variable conditionally defines the "HAS_DBMINIT_PROTO" symbol,
1011 which indicates to the C program that the system provides a
1012 prototype for the dbminit() function. Otherwise, it is up to the
1013 program to supply one.
1014 "d_difftime"
1016 From d_difftime.U:
1017 This variable conditionally defines the "HAS_DIFFTIME" symbol,
1019 which indicates to the C program that the difftime() routine is
1020 available.
1021 "d_difftime64"
1023 From d_timefuncs64.U:
1024 This variable conditionally defines the HAS_DIFFTIME64 symbol,
1026 which indicates to the C program that the difftime64 () routine is
1027 available.
1028 "d_dir_dd_fd"
1030 From d_dir_dd_fd.U:
1031 This variable conditionally defines the "HAS_DIR_DD_FD" symbol,
1033 which indicates that the "DIR" directory stream type contains a
1034 member variable called dd_fd.
1035 "d_dirfd"
1037 From d_dirfd.U:
1038 This variable conditionally defines the "HAS_DIRFD" constant, which
1040 indicates to the C program that dirfd() is available to return the
1041 file descriptor of a directory stream.
1042 "d_dirnamlen"
1044 From i_dirent.U:
1045 This variable conditionally defines "DIRNAMLEN", which indicates to
1047 the C program that the length of directory entry names is provided
1048 by a d_namelen field.
1049 "d_dladdr"
1051 From d_dladdr.U:
1052 This variable conditionally defines the "HAS_DLADDR" symbol, which
1054 indicates to the C program that the dladdr() routine is available
1055 to get a stack trace.
1056 "d_dlerror"
1058 From d_dlerror.U:
1059 This variable conditionally defines the "HAS_DLERROR" symbol, which
1061 indicates to the C program that the dlerror() routine is available.
1062 "d_dlopen"
1064 From d_dlopen.U:
1065 This variable conditionally defines the "HAS_DLOPEN" symbol, which
1067 indicates to the C program that the dlopen() routine is available.
1068 "d_dlsymun"
1070 From d_dlsymun.U:
1071 This variable conditionally defines "DLSYM_NEEDS_UNDERSCORE", which
1073 indicates that we need to prepend an underscore to the symbol name
1074 before calling dlsym().
1075 "d_dosuid"
1077 From d_dosuid.U:
1078 This variable conditionally defines the symbol "DOSUID", which
1080 tells the C program that it should insert setuid emulation code on
1081 hosts which have setuid #! scripts disabled.
1082 "d_double_has_inf"
1084 From longdblfio.U:
1085 This variable conditionally defines the symbol "DOUBLE_HAS_INF"
1087 which indicates that the double type has an infinity.
1088 "d_double_has_nan"
1090 From longdblfio.U:
1091 This variable conditionally defines the symbol "DOUBLE_HAS_NAN"
1093 which indicates that the double type has a not-a-number.
1094 "d_double_has_negative_zero"
1096 From longdblfio.U:
1097 This variable conditionally defines the symbol
1099 "DOUBLE_HAS_NEGATIVE_ZERO" which indicates that the double type has
1100 a negative zero.
1101 "d_double_has_subnormals"
1103 From longdblfio.U:
1104 This variable conditionally defines the symbol
1106 "DOUBLE_HAS_SUBNORMALS" which indicates that the double type has
1107 subnormals (denormals).
1108 "d_double_style_cray"
1110 From longdblfio.U:
1111 This variable conditionally defines the symbol "DOUBLE_STYLE_CRAY"
1113 which indicates that the double is the 64-bit "CRAY" mainframe
1114 format.
1115 "d_double_style_ibm"
1117 From longdblfio.U:
1118 This variable conditionally defines the symbol "DOUBLE_STYLE_IBM",
1120 which indicates that the double is the 64-bit "IBM" mainframe
1121 format.
1122 "d_double_style_ieee"
1124 From longdblfio.U:
1125 This variable conditionally defines the symbol "DOUBLE_STYLE_IEEE",
1127 which indicates that the double is the 64-bit "IEEE" 754.
1128 "d_double_style_vax"
1130 From longdblfio.U:
1131 This variable conditionally defines the symbol "DOUBLE_STYLE_VAX",
1133 which indicates that the double is the 64-bit "VAX" format D or G.
1134 "d_drand48_r"
1136 From d_drand48_r.U:
1137 This variable conditionally defines the HAS_DRAND48_R symbol, which
1139 indicates to the C program that the drand48_r() routine is
1140 available.
1141 "d_drand48proto"
1143 From d_drand48proto.U:
1144 This variable conditionally defines the HAS_DRAND48_PROTO symbol,
1146 which indicates to the C program that the system provides a
1147 prototype for the drand48() function. Otherwise, it is up to the
1148 program to supply one.
1149 "d_dup2"
1151 From d_dup2.U:
1152 This variable conditionally defines HAS_DUP2 if dup2() is available
1154 to duplicate file descriptors.
1155 "d_dup3"
1157 From d_dup3.U:
1158 This variable conditionally defines HAS_DUP3 if dup3() is available
1160 to duplicate file descriptors.
1161 "d_duplocale"
1163 From d_newlocale.U:
1164 This variable conditionally defines the "HAS_DUPLOCALE" symbol,
1166 which indicates to the C program that the duplocale() routine is
1167 available to duplicate a locale object.
1168 "d_eaccess"
1170 From d_eaccess.U:
1171 This variable conditionally defines the "HAS_EACCESS" symbol, which
1173 indicates to the C program that the eaccess() routine is available.
1174 "d_endgrent"
1176 From d_endgrent.U:
1177 This variable conditionally defines the "HAS_ENDGRENT" symbol,
1179 which indicates to the C program that the endgrent() routine is
1180 available for sequential access of the group database.
1181 "d_endgrent_r"
1183 From d_endgrent_r.U:
1184 This variable conditionally defines the "HAS_ENDGRENT_R" symbol,
1186 which indicates to the C program that the endgrent_r() routine is
1187 available.
1188 "d_endhent"
1190 From d_endhent.U:
1191 This variable conditionally defines "HAS_ENDHOSTENT" if
1193 endhostent() is available to close whatever was being used for host
1194 queries.
1195 "d_endhostent_r"
1197 From d_endhostent_r.U:
1198 This variable conditionally defines the "HAS_ENDHOSTENT_R" symbol,
1200 which indicates to the C program that the endhostent_r() routine is
1201 available.
1202 "d_endnent"
1204 From d_endnent.U:
1205 This variable conditionally defines "HAS_ENDNETENT" if endnetent()
1207 is available to close whatever was being used for network queries.
1208 "d_endnetent_r"
1210 From d_endnetent_r.U:
1211 This variable conditionally defines the "HAS_ENDNETENT_R" symbol,
1213 which indicates to the C program that the endnetent_r() routine is
1214 available.
1215 "d_endpent"
1217 From d_endpent.U:
1218 This variable conditionally defines "HAS_ENDPROTOENT" if
1220 endprotoent() is available to close whatever was being used for
1221 protocol queries.
1222 "d_endprotoent_r"
1224 From d_endprotoent_r.U:
1225 This variable conditionally defines the "HAS_ENDPROTOENT_R" symbol,
1227 which indicates to the C program that the endprotoent_r() routine
1228 is available.
1229 "d_endpwent"
1231 From d_endpwent.U:
1232 This variable conditionally defines the "HAS_ENDPWENT" symbol,
1234 which indicates to the C program that the endpwent() routine is
1235 available for sequential access of the passwd database.
1236 "d_endpwent_r"
1238 From d_endpwent_r.U:
1239 This variable conditionally defines the "HAS_ENDPWENT_R" symbol,
1241 which indicates to the C program that the endpwent_r() routine is
1242 available.
1243 "d_endsent"
1245 From d_endsent.U:
1246 This variable conditionally defines "HAS_ENDSERVENT" if
1248 endservent() is available to close whatever was being used for
1249 service queries.
1250 "d_endservent_r"
1252 From d_endservent_r.U:
1253 This variable conditionally defines the "HAS_ENDSERVENT_R" symbol,
1255 which indicates to the C program that the endservent_r() routine is
1256 available.
1257 "d_eofnblk"
1259 From nblock_io.U:
1260 This variable conditionally defines "EOF_NONBLOCK" if "EOF" can be
1262 seen when reading from a non-blocking I/O source.
1263 "d_erf"
1265 From d_erf.U:
1266 This variable conditionally defines the "HAS_ERF" symbol, which
1268 indicates to the C program that the erf() routine is available.
1269 "d_erfc"
1271 From d_erfc.U:
1272 This variable conditionally defines the "HAS_ERFC" symbol, which
1274 indicates to the C program that the erfc() routine is available.
1275 "d_eunice"
1277 From Guess.U:
1278 This variable conditionally defines the symbols "EUNICE" and "VAX",
1280 which alerts the C program that it must deal with idiosyncrasies of
1281 "VMS".
1282 "d_exp2"
1284 From d_exp2.U:
1285 This variable conditionally defines the HAS_EXP2 symbol, which
1287 indicates to the C program that the exp2() routine is available.
1288 "d_expm1"
1290 From d_expm1.U:
1291 This variable conditionally defines the HAS_EXPM1 symbol, which
1293 indicates to the C program that the expm1() routine is available.
1294 "d_faststdio"
1296 From d_faststdio.U:
1297 This variable conditionally defines the "HAS_FAST_STDIO" symbol,
1299 which indicates to the C program that the "fast stdio" is available
1300 to manipulate the stdio buffers directly.
1301 "d_fchdir"
1303 From d_fchdir.U:
1304 This variable conditionally defines the "HAS_FCHDIR" symbol, which
1306 indicates to the C program that the fchdir() routine is available.
1307 "d_fchmod"
1309 From d_fchmod.U:
1310 This variable conditionally defines the "HAS_FCHMOD" symbol, which
1312 indicates to the C program that the fchmod() routine is available
1313 to change mode of opened files.
1314 "d_fchmodat"
1316 From d_fsat.U:
1317 This variable conditionally defines the "HAS_FCHMODAT" symbol,
1319 which indicates the "POSIX" fchmodat() function is available.
1320 "d_fchown"
1322 From d_fchown.U:
1323 This variable conditionally defines the "HAS_FCHOWN" symbol, which
1325 indicates to the C program that the fchown() routine is available
1326 to change ownership of opened files.
1327 "d_fcntl"
1329 From d_fcntl.U:
1330 This variable conditionally defines the "HAS_FCNTL" symbol, and
1332 indicates whether the fcntl() function exists
1333 "d_fcntl_can_lock"
1335 From d_fcntl_can_lock.U:
1336 This variable conditionally defines the "FCNTL_CAN_LOCK" symbol and
1338 indicates whether file locking with fcntl() works.
1339 "d_fd_macros"
1341 From d_fd_set.U:
1342 This variable contains the eventual value of the "HAS_FD_MACROS"
1344 symbol, which indicates if your C compiler knows about the macros
1345 which manipulate an fd_set.
1346 "d_fd_set"
1348 From d_fd_set.U:
1349 This variable contains the eventual value of the "HAS_FD_SET"
1351 symbol, which indicates if your C compiler knows about the fd_set
1352 typedef.
1353 "d_fdclose"
1355 From d_fdclose.U:
1356 This variable conditionally defines the "HAS_FDCLOSE" symbol, which
1358 indicates to the C program that the fdclose() routine is available.
1359 "d_fdim"
1361 From d_fdim.U:
1362 This variable conditionally defines the "HAS_FDIM" symbol, which
1364 indicates to the C program that the fdim() routine is available.
1365 "d_fds_bits"
1367 From d_fd_set.U:
1368 This variable contains the eventual value of the "HAS_FDS_BITS"
1370 symbol, which indicates if your fd_set typedef contains the
1371 fds_bits member. If you have an fd_set typedef, but the dweebs who
1372 installed it did a half-fast job and neglected to provide the
1373 macros to manipulate an fd_set, "HAS_FDS_BITS" will let us know how
1374 to fix the gaffe.
1375 "d_fegetround"
1377 From d_fegetround.U:
1378 This variable conditionally defines "HAS_FEGETROUND" if
1380 fegetround() is available to get the floating point rounding mode.
1381 "d_fgetpos"
1383 From d_fgetpos.U:
1384 This variable conditionally defines "HAS_FGETPOS" if fgetpos() is
1386 available to get the file position indicator.
1387 "d_finite"
1389 From d_finite.U:
1390 This variable conditionally defines the "HAS_FINITE" symbol, which
1392 indicates to the C program that the finite() routine is available.
1393 "d_finitel"
1395 From d_finitel.U:
1396 This variable conditionally defines the "HAS_FINITEL" symbol, which
1398 indicates to the C program that the finitel() routine is available.
1399 "d_flexfnam"
1401 From d_flexfnam.U:
1402 This variable conditionally defines the "FLEXFILENAMES" symbol,
1404 which indicates that the system supports filenames longer than 14
1405 characters.
1406 "d_flock"
1408 From d_flock.U:
1409 This variable conditionally defines "HAS_FLOCK" if flock() is
1411 available to do file locking.
1412 "d_flockproto"
1414 From d_flockproto.U:
1415 This variable conditionally defines the "HAS_FLOCK_PROTO" symbol,
1417 which indicates to the C program that the system provides a
1418 prototype for the flock() function. Otherwise, it is up to the
1419 program to supply one.
1420 "d_fma"
1422 From d_fma.U:
1423 This variable conditionally defines the "HAS_FMA" symbol, which
1425 indicates to the C program that the fma() routine is available.
1426 "d_fmax"
1428 From d_fmax.U:
1429 This variable conditionally defines the "HAS_FMAX" symbol, which
1431 indicates to the C program that the fmax() routine is available.
1432 "d_fmin"
1434 From d_fmin.U:
1435 This variable conditionally defines the "HAS_FMIN" symbol, which
1437 indicates to the C program that the fmin() routine is available.
1438 "d_fork"
1440 From d_fork.U:
1441 This variable conditionally defines the "HAS_FORK" symbol, which
1443 indicates to the C program that the fork() routine is available.
1444 "d_fp_class"
1446 From d_fp_class.U:
1447 This variable conditionally defines the "HAS_FP_CLASS" symbol,
1449 which indicates to the C program that the fp_class() routine is
1450 available.
1451 "d_fp_classify"
1453 From d_fpclassify.U:
1454 This variable conditionally defines the "HAS_FP_CLASSIFY" symbol,
1456 which indicates to the C program that the fp_classify() routine is
1457 available.
1458 "d_fp_classl"
1460 From d_fp_classl.U:
1461 This variable conditionally defines the "HAS_FP_CLASSL" symbol,
1463 which indicates to the C program that the fp_classl() routine is
1464 available.
1465 "d_fpathconf"
1467 From d_pathconf.U:
1468 This variable conditionally defines the "HAS_FPATHCONF" symbol,
1470 which indicates to the C program that the pathconf() routine is
1471 available to determine file-system related limits and options
1472 associated with a given open file descriptor.
1473 "d_fpclass"
1475 From d_fpclass.U:
1476 This variable conditionally defines the "HAS_FPCLASS" symbol, which
1478 indicates to the C program that the fpclass() routine is available.
1479 "d_fpclassify"
1481 From d_fpclassify.U:
1482 This variable conditionally defines the "HAS_FPCLASSIFY" symbol,
1484 which indicates to the C program that the fpclassify() routine is
1485 available.
1486 "d_fpclassl"
1488 From d_fpclassl.U:
1489 This variable conditionally defines the "HAS_FPCLASSL" symbol,
1491 which indicates to the C program that the fpclassl() routine is
1492 available.
1493 "d_fpgetround"
1495 From d_fpgetround.U:
1496 This variable conditionally defines "HAS_FPGETROUND" if
1498 fpgetround() is available to get the floating point rounding mode.
1499 "d_fpos64_t"
1501 From d_fpos64_t.U:
1502 This symbol will be defined if the C compiler supports fpos64_t.
1504 "d_freelocale"
1506 From d_newlocale.U:
1507 This variable conditionally defines the "HAS_FREELOCALE" symbol,
1509 which indicates to the C program that the freelocale() routine is
1510 available to deallocates the resources associated with a locale
1511 object.
1512 "d_frexpl"
1514 From d_frexpl.U:
1515 This variable conditionally defines the "HAS_FREXPL" symbol, which
1517 indicates to the C program that the frexpl() routine is available.
1518 "d_fs_data_s"
1520 From d_fs_data_s.U:
1521 This variable conditionally defines the "HAS_STRUCT_FS_DATA"
1523 symbol, which indicates that the struct fs_data is supported.
1524 "d_fseeko"
1526 From d_fseeko.U:
1527 This variable conditionally defines the "HAS_FSEEKO" symbol, which
1529 indicates to the C program that the fseeko() routine is available.
1530 "d_fsetpos"
1532 From d_fsetpos.U:
1533 This variable conditionally defines "HAS_FSETPOS" if fsetpos() is
1535 available to set the file position indicator.
1536 "d_fstatfs"
1538 From d_fstatfs.U:
1539 This variable conditionally defines the "HAS_FSTATFS" symbol, which
1541 indicates to the C program that the fstatfs() routine is available.
1542 "d_fstatvfs"
1544 From d_statvfs.U:
1545 This variable conditionally defines the "HAS_FSTATVFS" symbol,
1547 which indicates to the C program that the fstatvfs() routine is
1548 available.
1549 "d_fsync"
1551 From d_fsync.U:
1552 This variable conditionally defines the "HAS_FSYNC" symbol, which
1554 indicates to the C program that the fsync() routine is available.
1555 "d_ftello"
1557 From d_ftello.U:
1558 This variable conditionally defines the "HAS_FTELLO" symbol, which
1560 indicates to the C program that the ftello() routine is available.
1561 "d_ftime"
1563 From d_ftime.U:
1564 This variable conditionally defines the "HAS_FTIME" symbol, which
1566 indicates that the ftime() routine exists. The ftime() routine is
1567 basically a sub-second accuracy clock.
1568 "d_futimes"
1570 From d_futimes.U:
1571 This variable conditionally defines the "HAS_FUTIMES" symbol, which
1573 indicates to the C program that the futimes() routine is available.
1574 "d_gai_strerror"
1576 From d_gai_strerror.U:
1577 This variable conditionally defines the "HAS_GAI_STRERROR" symbol
1579 if the gai_strerror() routine is available and can be used to
1580 translate error codes returned by getaddrinfo() into human readable
1581 strings.
1582 "d_Gconvert"
1584 From d_gconvert.U:
1585 This variable holds what Gconvert is defined as to convert floating
1587 point numbers into strings. By default, Configure sets "this"
1588 macro to use the first of gconvert, gcvt, or sprintf that pass
1589 sprintf-%g-like behavior tests. If perl is using long doubles, the
1590 macro uses the first of the following functions that pass
1591 Configure's tests: qgcvt, sprintf (if Configure knows how to make
1592 sprintf format long doubles--see sPRIgldbl), gconvert, gcvt, and
1593 sprintf (casting to double). The gconvert_preference and
1594 gconvert_ld_preference variables can be used to alter Configure's
1595 preferences, for doubles and long doubles, respectively. If
1596 present, they contain a space-separated list of one or more of the
1597 above function names in the order they should be tried.
1598 d_Gconvert may be set to override Configure with a platform-
1600 specific function. If this function expects a double, a different
1601 value may need to be set by the uselongdouble.cbu call-back unit so
1602 that long doubles can be formatted without loss of precision.
1603 "d_gdbm_ndbm_h_uses_prototypes"
1605 From i_ndbm.U:
1606 This variable conditionally defines the "NDBM_H_USES_PROTOTYPES"
1608 symbol, which indicates that the gdbm-ndbm.h include file uses real
1609 "ANSI" C prototypes instead of K&R style function declarations. K&R
1610 style declarations are unsupported in C++, so the include file
1611 requires special handling when using a C++ compiler and this
1612 variable is undefined. Consult the different
1613 d_*ndbm_h_uses_prototypes variables to get the same information for
1614 alternative ndbm.h include files.
1615 "d_gdbmndbm_h_uses_prototypes"
1617 From i_ndbm.U:
1618 This variable conditionally defines the "NDBM_H_USES_PROTOTYPES"
1620 symbol, which indicates that the gdbm/ndbm.h include file uses real
1621 "ANSI" C prototypes instead of K&R style function declarations. K&R
1622 style declarations are unsupported in C++, so the include file
1623 requires special handling when using a C++ compiler and this
1624 variable is undefined. Consult the different
1625 d_*ndbm_h_uses_prototypes variables to get the same information for
1626 alternative ndbm.h include files.
1627 "d_getaddrinfo"
1629 From d_getaddrinfo.U:
1630 This variable conditionally defines the "HAS_GETADDRINFO" symbol,
1632 which indicates to the C program that the getaddrinfo() function is
1633 available.
1634 "d_getcwd"
1636 From d_getcwd.U:
1637 This variable conditionally defines the "HAS_GETCWD" symbol, which
1639 indicates to the C program that the getcwd() routine is available
1640 to get the current working directory.
1641 "d_getespwnam"
1643 From d_getespwnam.U:
1644 This variable conditionally defines "HAS_GETESPWNAM" if
1646 getespwnam() is available to retrieve enhanced (shadow) password
1647 entries by name.
1648 "d_getfsstat"
1650 From d_getfsstat.U:
1651 This variable conditionally defines the "HAS_GETFSSTAT" symbol,
1653 which indicates to the C program that the getfsstat() routine is
1654 available.
1655 "d_getgrent"
1657 From d_getgrent.U:
1658 This variable conditionally defines the "HAS_GETGRENT" symbol,
1660 which indicates to the C program that the getgrent() routine is
1661 available for sequential access of the group database.
1662 "d_getgrent_r"
1664 From d_getgrent_r.U:
1665 This variable conditionally defines the "HAS_GETGRENT_R" symbol,
1667 which indicates to the C program that the getgrent_r() routine is
1668 available.
1669 "d_getgrgid_r"
1671 From d_getgrgid_r.U:
1672 This variable conditionally defines the "HAS_GETGRGID_R" symbol,
1674 which indicates to the C program that the getgrgid_r() routine is
1675 available.
1676 "d_getgrnam_r"
1678 From d_getgrnam_r.U:
1679 This variable conditionally defines the "HAS_GETGRNAM_R" symbol,
1681 which indicates to the C program that the getgrnam_r() routine is
1682 available.
1683 "d_getgrps"
1685 From d_getgrps.U:
1686 This variable conditionally defines the "HAS_GETGROUPS" symbol,
1688 which indicates to the C program that the getgroups() routine is
1689 available to get the list of process groups.
1690 "d_gethbyaddr"
1692 From d_gethbyad.U:
1693 This variable conditionally defines the "HAS_GETHOSTBYADDR" symbol,
1695 which indicates to the C program that the gethostbyaddr() routine
1696 is available to look up hosts by their "IP" addresses.
1697 "d_gethbyname"
1699 From d_gethbynm.U:
1700 This variable conditionally defines the "HAS_GETHOSTBYNAME" symbol,
1702 which indicates to the C program that the gethostbyname() routine
1703 is available to look up host names in some data base or other.
1704 "d_gethent"
1706 From d_gethent.U:
1707 This variable conditionally defines "HAS_GETHOSTENT" if
1709 gethostent() is available to look up host names in some data base
1710 or another.
1711 "d_gethname"
1713 From d_gethname.U:
1714 This variable conditionally defines the "HAS_GETHOSTNAME" symbol,
1716 which indicates to the C program that the gethostname() routine may
1717 be used to derive the host name.
1718 "d_gethostbyaddr_r"
1720 From d_gethostbyaddr_r.U:
1721 This variable conditionally defines the "HAS_GETHOSTBYADDR_R"
1723 symbol, which indicates to the C program that the gethostbyaddr_r()
1724 routine is available.
1725 "d_gethostbyname_r"
1727 From d_gethostbyname_r.U:
1728 This variable conditionally defines the "HAS_GETHOSTBYNAME_R"
1730 symbol, which indicates to the C program that the gethostbyname_r()
1731 routine is available.
1732 "d_gethostent_r"
1734 From d_gethostent_r.U:
1735 This variable conditionally defines the "HAS_GETHOSTENT_R" symbol,
1737 which indicates to the C program that the gethostent_r() routine is
1738 available.
1739 "d_gethostprotos"
1741 From d_gethostprotos.U:
1742 This variable conditionally defines the "HAS_GETHOST_PROTOS"
1744 symbol, which indicates to the C program that <netdb.h> supplies
1745 prototypes for the various gethost*() functions. See also
1746 netdbtype.U for probing for various netdb types.
1747 "d_getitimer"
1749 From d_getitimer.U:
1750 This variable conditionally defines the "HAS_GETITIMER" symbol,
1752 which indicates to the C program that the getitimer() routine is
1753 available.
1754 "d_getlogin"
1756 From d_getlogin.U:
1757 This variable conditionally defines the "HAS_GETLOGIN" symbol,
1759 which indicates to the C program that the getlogin() routine is
1760 available to get the login name.
1761 "d_getlogin_r"
1763 From d_getlogin_r.U:
1764 This variable conditionally defines the "HAS_GETLOGIN_R" symbol,
1766 which indicates to the C program that the getlogin_r() routine is
1767 available.
1768 "d_getmnt"
1770 From d_getmnt.U:
1771 This variable conditionally defines the "HAS_GETMNT" symbol, which
1773 indicates to the C program that the getmnt() routine is available
1774 to retrieve one or more mount info blocks by filename.
1775 "d_getmntent"
1777 From d_getmntent.U:
1778 This variable conditionally defines the "HAS_GETMNTENT" symbol,
1780 which indicates to the C program that the getmntent() routine is
1781 available to iterate through mounted files to get their mount info.
1782 "d_getnameinfo"
1784 From d_getnameinfo.U:
1785 This variable conditionally defines the "HAS_GETNAMEINFO" symbol,
1787 which indicates to the C program that the getnameinfo() function is
1788 available.
1789 "d_getnbyaddr"
1791 From d_getnbyad.U:
1792 This variable conditionally defines the "HAS_GETNETBYADDR" symbol,
1794 which indicates to the C program that the getnetbyaddr() routine is
1795 available to look up networks by their "IP" addresses.
1796 "d_getnbyname"
1798 From d_getnbynm.U:
1799 This variable conditionally defines the "HAS_GETNETBYNAME" symbol,
1801 which indicates to the C program that the getnetbyname() routine is
1802 available to look up networks by their names.
1803 "d_getnent"
1805 From d_getnent.U:
1806 This variable conditionally defines "HAS_GETNETENT" if getnetent()
1808 is available to look up network names in some data base or another.
1809 "d_getnetbyaddr_r"
1811 From d_getnetbyaddr_r.U:
1812 This variable conditionally defines the "HAS_GETNETBYADDR_R"
1814 symbol, which indicates to the C program that the getnetbyaddr_r()
1815 routine is available.
1816 "d_getnetbyname_r"
1818 From d_getnetbyname_r.U:
1819 This variable conditionally defines the "HAS_GETNETBYNAME_R"
1821 symbol, which indicates to the C program that the getnetbyname_r()
1822 routine is available.
1823 "d_getnetent_r"
1825 From d_getnetent_r.U:
1826 This variable conditionally defines the "HAS_GETNETENT_R" symbol,
1828 which indicates to the C program that the getnetent_r() routine is
1829 available.
1830 "d_getnetprotos"
1832 From d_getnetprotos.U:
1833 This variable conditionally defines the "HAS_GETNET_PROTOS" symbol,
1835 which indicates to the C program that <netdb.h> supplies prototypes
1836 for the various getnet*() functions. See also netdbtype.U for
1837 probing for various netdb types.
1838 "d_getpagsz"
1840 From d_getpagsz.U:
1841 This variable conditionally defines "HAS_GETPAGESIZE" if
1843 getpagesize() is available to get the system page size.
1844 "d_getpbyname"
1846 From d_getprotby.U:
1847 This variable conditionally defines the "HAS_GETPROTOBYNAME"
1849 symbol, which indicates to the C program that the getprotobyname()
1850 routine is available to look up protocols by their name.
1851 "d_getpbynumber"
1853 From d_getprotby.U:
1854 This variable conditionally defines the "HAS_GETPROTOBYNUMBER"
1856 symbol, which indicates to the C program that the
1857 getprotobynumber() routine is available to look up protocols by
1858 their number.
1859 "d_getpent"
1861 From d_getpent.U:
1862 This variable conditionally defines "HAS_GETPROTOENT" if
1864 getprotoent() is available to look up protocols in some data base
1865 or another.
1866 "d_getpgid"
1868 From d_getpgid.U:
1869 This variable conditionally defines the "HAS_GETPGID" symbol, which
1871 indicates to the C program that the getpgid(pid) function is
1872 available to get the process group id.
1873 "d_getpgrp"
1875 From d_getpgrp.U:
1876 This variable conditionally defines "HAS_GETPGRP" if getpgrp() is
1878 available to get the current process group.
1879 "d_getpgrp2"
1881 From d_getpgrp2.U:
1882 This variable conditionally defines the HAS_GETPGRP2 symbol, which
1884 indicates to the C program that the getpgrp2() (as in DG/"UX")
1885 routine is available to get the current process group.
1886 "d_getppid"
1888 From d_getppid.U:
1889 This variable conditionally defines the "HAS_GETPPID" symbol, which
1891 indicates to the C program that the getppid() routine is available
1892 to get the parent process "ID".
1893 "d_getprior"
1895 From d_getprior.U:
1896 This variable conditionally defines "HAS_GETPRIORITY" if
1898 getpriority() is available to get a process's priority.
1899 "d_getprotobyname_r"
1901 From d_getprotobyname_r.U:
1902 This variable conditionally defines the "HAS_GETPROTOBYNAME_R"
1904 symbol, which indicates to the C program that the
1905 getprotobyname_r() routine is available.
1906 "d_getprotobynumber_r"
1908 From d_getprotobynumber_r.U:
1909 This variable conditionally defines the "HAS_GETPROTOBYNUMBER_R"
1911 symbol, which indicates to the C program that the
1912 getprotobynumber_r() routine is available.
1913 "d_getprotoent_r"
1915 From d_getprotoent_r.U:
1916 This variable conditionally defines the "HAS_GETPROTOENT_R" symbol,
1918 which indicates to the C program that the getprotoent_r() routine
1919 is available.
1920 "d_getprotoprotos"
1922 From d_getprotoprotos.U:
1923 This variable conditionally defines the "HAS_GETPROTO_PROTOS"
1925 symbol, which indicates to the C program that <netdb.h> supplies
1926 prototypes for the various getproto*() functions. See also
1927 netdbtype.U for probing for various netdb types.
1928 "d_getprpwnam"
1930 From d_getprpwnam.U:
1931 This variable conditionally defines "HAS_GETPRPWNAM" if
1933 getprpwnam() is available to retrieve protected (shadow) password
1934 entries by name.
1935 "d_getpwent"
1937 From d_getpwent.U:
1938 This variable conditionally defines the "HAS_GETPWENT" symbol,
1940 which indicates to the C program that the getpwent() routine is
1941 available for sequential access of the passwd database.
1942 "d_getpwent_r"
1944 From d_getpwent_r.U:
1945 This variable conditionally defines the "HAS_GETPWENT_R" symbol,
1947 which indicates to the C program that the getpwent_r() routine is
1948 available.
1949 "d_getpwnam_r"
1951 From d_getpwnam_r.U:
1952 This variable conditionally defines the "HAS_GETPWNAM_R" symbol,
1954 which indicates to the C program that the getpwnam_r() routine is
1955 available.
1956 "d_getpwuid_r"
1958 From d_getpwuid_r.U:
1959 This variable conditionally defines the "HAS_GETPWUID_R" symbol,
1961 which indicates to the C program that the getpwuid_r() routine is
1962 available.
1963 "d_getsbyname"
1965 From d_getsrvby.U:
1966 This variable conditionally defines the "HAS_GETSERVBYNAME" symbol,
1968 which indicates to the C program that the getservbyname() routine
1969 is available to look up services by their name.
1970 "d_getsbyport"
1972 From d_getsrvby.U:
1973 This variable conditionally defines the "HAS_GETSERVBYPORT" symbol,
1975 which indicates to the C program that the getservbyport() routine
1976 is available to look up services by their port.
1977 "d_getsent"
1979 From d_getsent.U:
1980 This variable conditionally defines "HAS_GETSERVENT" if
1982 getservent() is available to look up network services in some data
1983 base or another.
1984 "d_getservbyname_r"
1986 From d_getservbyname_r.U:
1987 This variable conditionally defines the "HAS_GETSERVBYNAME_R"
1989 symbol, which indicates to the C program that the getservbyname_r()
1990 routine is available.
1991 "d_getservbyport_r"
1993 From d_getservbyport_r.U:
1994 This variable conditionally defines the "HAS_GETSERVBYPORT_R"
1996 symbol, which indicates to the C program that the getservbyport_r()
1997 routine is available.
1998 "d_getservent_r"
2000 From d_getservent_r.U:
2001 This variable conditionally defines the "HAS_GETSERVENT_R" symbol,
2003 which indicates to the C program that the getservent_r() routine is
2004 available.
2005 "d_getservprotos"
2007 From d_getservprotos.U:
2008 This variable conditionally defines the "HAS_GETSERV_PROTOS"
2010 symbol, which indicates to the C program that <netdb.h> supplies
2011 prototypes for the various getserv*() functions. See also
2012 netdbtype.U for probing for various netdb types.
2013 "d_getspnam"
2015 From d_getspnam.U:
2016 This variable conditionally defines "HAS_GETSPNAM" if getspnam() is
2018 available to retrieve SysV shadow password entries by name.
2019 "d_getspnam_r"
2021 From d_getspnam_r.U:
2022 This variable conditionally defines the "HAS_GETSPNAM_R" symbol,
2024 which indicates to the C program that the getspnam_r() routine is
2025 available.
2026 "d_gettimeod"
2028 From d_ftime.U:
2029 This variable conditionally defines the "HAS_GETTIMEOFDAY" symbol,
2031 which indicates that the gettimeofday() system call exists (to
2032 obtain a sub-second accuracy clock). You should probably include
2033 <sys/resource.h>.
2034 "d_gmtime64"
2036 From d_timefuncs64.U:
2037 This variable conditionally defines the HAS_GMTIME64 symbol, which
2039 indicates to the C program that the gmtime64 () routine is
2040 available.
2041 "d_gmtime_r"
2043 From d_gmtime_r.U:
2044 This variable conditionally defines the "HAS_GMTIME_R" symbol,
2046 which indicates to the C program that the gmtime_r() routine is
2047 available.
2048 "d_gnulibc"
2050 From d_gnulibc.U:
2051 Defined if we're dealing with the "GNU" C Library.
2053 "d_grpasswd"
2055 From i_grp.U:
2056 This variable conditionally defines "GRPASSWD", which indicates
2058 that struct group in <grp.h> contains gr_passwd.
2059 "d_has_C_UTF8"
2061 From d_setlocale.U:
2062 This variable is set to either "true" or "false" depending on
2064 whether the compilation system supports the C.UTF-8 locale.
2065 "d_hasmntopt"
2067 From d_hasmntopt.U:
2068 This variable conditionally defines the "HAS_HASMNTOPT" symbol,
2070 which indicates to the C program that the hasmntopt() routine is
2071 available to query the mount options of file systems.
2072 "d_htonl"
2074 From d_htonl.U:
2075 This variable conditionally defines "HAS_HTONL" if htonl() and its
2077 friends are available to do network order byte swapping.
2078 "d_hypot"
2080 From d_hypot.U:
2081 This variable conditionally defines "HAS_HYPOT" if hypot is
2083 available for numerically stable hypotenuse function.
2084 "d_ilogb"
2086 From d_ilogb.U:
2087 This variable conditionally defines the "HAS_ILOGB" symbol, which
2089 indicates to the C program that the ilogb() routine is available
2090 for extracting the exponent of double x as a signed integer.
2091 "d_ilogbl"
2093 From d_ilogbl.U:
2094 This variable conditionally defines the "HAS_ILOGBL" symbol, which
2096 indicates to the C program that the ilogbl() routine is available
2097 for extracting the exponent of long double x as a signed integer.
2098 If scalbnl is also present we can emulate frexpl.
2099 "d_inc_version_list"
2101 From inc_version_list.U:
2102 This variable conditionally defines "PERL_INC_VERSION_LIST". It is
2104 set to undef when "PERL_INC_VERSION_LIST" is empty.
2105 "d_inetaton"
2107 From d_inetaton.U:
2108 This variable conditionally defines the "HAS_INET_ATON" symbol,
2110 which indicates to the C program that the inet_aton() function is
2111 available to parse "IP" address "dotted-quad" strings.
2112 "d_inetntop"
2114 From d_inetntop.U:
2115 This variable conditionally defines the "HAS_INETNTOP" symbol,
2117 which indicates to the C program that the inet_ntop() function is
2118 available.
2119 "d_inetpton"
2121 From d_inetpton.U:
2122 This variable conditionally defines the "HAS_INETPTON" symbol,
2124 which indicates to the C program that the inet_pton() function is
2125 available.
2126 "d_int64_t"
2128 From d_int64_t.U:
2129 This symbol will be defined if the C compiler supports int64_t.
2131 "d_ip_mreq"
2133 From d_socket.U:
2134 This variable conditionally defines the "HAS_IP_MREQ" symbol, which
2136 indicates the availability of a struct ip_mreq.
2137 "d_ip_mreq_source"
2139 From d_socket.U:
2140 This variable conditionally defines the "HAS_IP_MREQ_SOURCE"
2142 symbol, which indicates the availability of a struct
2143 ip_mreq_source.
2144 "d_ipv6_mreq"
2146 From d_socket.U:
2147 This variable conditionally defines the HAS_IPV6_MREQ symbol, which
2149 indicates the availability of a struct ipv6_mreq.
2150 "d_ipv6_mreq_source"
2152 From d_socket.U:
2153 This variable conditionally defines the HAS_IPV6_MREQ_SOURCE
2155 symbol, which indicates the availability of a struct
2156 ipv6_mreq_source.
2157 "d_isascii"
2159 From d_isascii.U:
2160 This variable conditionally defines the "HAS_ISASCII" constant,
2162 which indicates to the C program that isascii() is available.
2163 "d_isblank"
2165 From d_isblank.U:
2166 This variable conditionally defines the "HAS_ISBLANK" constant,
2168 which indicates to the C program that isblank() is available.
2169 "d_isfinite"
2171 From d_isfinite.U:
2172 This variable conditionally defines the "HAS_ISFINITE" symbol,
2174 which indicates to the C program that the isfinite() routine is
2175 available.
2176 "d_isfinitel"
2178 From d_isfinitel.U:
2179 This variable conditionally defines the "HAS_ISFINITEL" symbol,
2181 which indicates to the C program that the isfinitel() routine is
2182 available.
2183 "d_isinf"
2185 From d_isinf.U:
2186 This variable conditionally defines the "HAS_ISINF" symbol, which
2188 indicates to the C program that the isinf() routine is available.
2189 "d_isinfl"
2191 From d_isinfl.U:
2192 This variable conditionally defines the "HAS_ISINFL" symbol, which
2194 indicates to the C program that the isinfl() routine is available.
2195 "d_isless"
2197 From d_isless.U:
2198 This variable conditionally defines the "HAS_ISLESS" symbol, which
2200 indicates to the C program that the isless() routine is available.
2201 "d_isnan"
2203 From d_isnan.U:
2204 This variable conditionally defines the "HAS_ISNAN" symbol, which
2206 indicates to the C program that the isnan() routine is available.
2207 "d_isnanl"
2209 From d_isnanl.U:
2210 This variable conditionally defines the "HAS_ISNANL" symbol, which
2212 indicates to the C program that the isnanl() routine is available.
2213 "d_isnormal"
2215 From d_isnormal.U:
2216 This variable conditionally defines the "HAS_ISNORMAL" symbol,
2218 which indicates to the C program that the isnormal() routine is
2219 available.
2220 "d_j0"
2222 From d_j0.U:
2223 This variable conditionally defines the HAS_J0 symbol, which
2225 indicates to the C program that the j0() routine is available.
2226 "d_j0l"
2228 From d_j0.U:
2229 This variable conditionally defines the HAS_J0L symbol, which
2231 indicates to the C program that the j0l() routine is available.
2232 "d_killpg"
2234 From d_killpg.U:
2235 This variable conditionally defines the "HAS_KILLPG" symbol, which
2237 indicates to the C program that the killpg() routine is available
2238 to kill process groups.
2239 "d_lc_monetary_2008"
2241 From d_lc_monetary_2008.U:
2242 This variable conditionally defines HAS_LC_MONETARY_2008 if libc
2244 has the international currency locale rules from "POSIX"
2245 1003.1-2008.
2246 "d_lchown"
2248 From d_lchown.U:
2249 This variable conditionally defines the "HAS_LCHOWN" symbol, which
2251 indicates to the C program that the lchown() routine is available
2252 to operate on a symbolic link (instead of following the link).
2253 "d_ldbl_dig"
2255 From d_ldbl_dig.U:
2256 This variable conditionally defines d_ldbl_dig if this system's
2258 header files provide "LDBL_DIG", which is the number of significant
2259 digits in a long double precision number.
2260 "d_ldexpl"
2262 From d_longdbl.U:
2263 This variable conditionally defines the "HAS_LDEXPL" symbol, which
2265 indicates to the C program that the ldexpl() routine is available.
2266 "d_lgamma"
2268 From d_lgamma.U:
2269 This variable conditionally defines the "HAS_LGAMMA" symbol, which
2271 indicates to the C program that the lgamma() routine is available
2272 for the log gamma function. See also d_tgamma and d_lgamma_r.
2273 "d_lgamma_r"
2275 From d_lgamma_r.U:
2276 This variable conditionally defines the "HAS_LGAMMA_R" symbol,
2278 which indicates to the C program that the lgamma_r() routine is
2279 available for the log gamma function, without using the global
2280 signgam variable.
2281 "d_libm_lib_version"
2283 From d_libm_lib_version.U:
2284 This variable conditionally defines the "LIBM_LIB_VERSION" symbol,
2286 which indicates to the C program that math.h defines "_LIB_VERSION"
2287 being available in libm
2288 "d_libname_unique"
2290 From so.U:
2291 This variable is defined if the target system insists on unique
2293 basenames for shared library files. This is currently true on
2294 Android, false everywhere else we know of. Defaults to "undef".
2295 "d_link"
2297 From d_link.U:
2298 This variable conditionally defines "HAS_LINK" if link() is
2300 available to create hard links.
2301 "d_linkat"
2303 From d_fsat.U:
2304 This variable conditionally defines the "HAS_LINKAT" symbol, which
2306 indicates the "POSIX" linkat() function is available.
2307 "d_llrint"
2309 From d_llrint.U:
2310 This variable conditionally defines the "HAS_LLRINT" symbol, which
2312 indicates to the C program that the llrint() routine is available
2313 to return the long long value closest to a double (according to the
2314 current rounding mode).
2315 "d_llrintl"
2317 From d_llrintl.U:
2318 This variable conditionally defines the "HAS_LLRINTL" symbol, which
2320 indicates to the C program that the llrintl() routine is available
2321 to return the long long value closest to a long double (according
2322 to the current rounding mode).
2323 "d_llround"
2325 From d_llround.U:
2326 This variable conditionally defines the "HAS_LLROUND" symbol, which
2328 indicates to the C program that the llround() routine is available
2329 to return the long long value nearest to x.
2330 "d_llroundl"
2332 From d_llroundl.U:
2333 This variable conditionally defines the "HAS_LLROUNDL" symbol,
2335 which indicates to the C program that the llroundl() routine is
2336 available to return the long long value nearest to x away from
2337 zero.
2338 "d_localeconv_l"
2340 From d_localeconv_l.U:
2341 This variable conditionally defines the "HAS_LOCALECONV_L" symbol,
2343 which indicates to the C program that the localeconv_l() routine is
2344 available.
2345 "d_localtime64"
2347 From d_timefuncs64.U:
2348 This variable conditionally defines the HAS_LOCALTIME64 symbol,
2350 which indicates to the C program that the localtime64 () routine is
2351 available.
2352 "d_localtime_r"
2354 From d_localtime_r.U:
2355 This variable conditionally defines the "HAS_LOCALTIME_R" symbol,
2357 which indicates to the C program that the localtime_r() routine is
2358 available.
2359 "d_localtime_r_needs_tzset"
2361 From d_localtime_r.U:
2362 This variable conditionally defines the "LOCALTIME_R_NEEDS_TZSET"
2364 symbol, which makes us call tzset before localtime_r()
2365 "d_locconv"
2367 From d_locconv.U:
2368 This variable conditionally defines "HAS_LOCALECONV" if
2370 localeconv() is available for numeric and monetary formatting
2371 conventions.
2372 "d_lockf"
2374 From d_lockf.U:
2375 This variable conditionally defines "HAS_LOCKF" if lockf() is
2377 available to do file locking.
2378 "d_log1p"
2380 From d_log1p.U:
2381 This variable conditionally defines the HAS_LOG1P symbol, which
2383 indicates to the C program that the logp1() routine is available to
2384 compute log(1 + x) for values of x close to zero.
2385 "d_log2"
2387 From d_log2.U:
2388 This variable conditionally defines the HAS_LOG2 symbol, which
2390 indicates to the C program that the log2() routine is available to
2391 compute log base two.
2392 "d_logb"
2394 From d_logb.U:
2395 This variable conditionally defines the "HAS_LOGB" symbol, which
2397 indicates to the C program that the logb() routine is available to
2398 extract the exponent of x.
2399 "d_long_double_style_ieee"
2401 From d_longdbl.U:
2402 This variable conditionally defines "LONG_DOUBLE_STYLE_IEEE" if the
2404 long double is any of the "IEEE" 754 style long doubles:
2405 "LONG_DOUBLE_STYLE_IEEE_STD", "LONG_DOUBLE_STYLE_IEEE_EXTENDED",
2406 "LONG_DOUBLE_STYLE_IEEE_DOUBLEDOUBLE".
2407 "d_long_double_style_ieee_doubledouble"
2409 From d_longdbl.U:
2410 This variable conditionally defines
2412 "LONG_DOUBLE_STYLE_IEEE_DOUBLEDOUBLE" if the long double is the
2413 128-bit "IEEE" 754 double-double.
2414 "d_long_double_style_ieee_extended"
2416 From d_longdbl.U:
2417 This variable conditionally defines
2419 "LONG_DOUBLE_STYLE_IEEE_EXTENDED" if the long double is the 80-bit
2420 "IEEE" 754 extended precision. Note that despite the "extended"
2421 this is less than the "std", since thisis an extension of the
2422 double precision.
2423 "d_long_double_style_ieee_std"
2425 From d_longdbl.U:
2426 This variable conditionally defines "LONG_DOUBLE_STYLE_IEEE_STD" if
2428 the long double is the 128-bit "IEEE" 754.
2429 "d_long_double_style_vax"
2431 From d_longdbl.U:
2432 This variable conditionally defines "LONG_DOUBLE_STYLE_VAX" if the
2434 long double is the 128-bit "VAX" format H.
2435 "d_longdbl"
2437 From d_longdbl.U:
2438 This variable conditionally defines "HAS_LONG_DOUBLE" if the long
2440 double type is supported.
2441 "d_longlong"
2443 From d_longlong.U:
2444 This variable conditionally defines "HAS_LONG_LONG" if the long
2446 long type is supported.
2447 "d_lrint"
2449 From d_lrint.U:
2450 This variable conditionally defines the "HAS_LRINT" symbol, which
2452 indicates to the C program that the lrint() routine is available to
2453 return the integral value closest to a double (according to the
2454 current rounding mode).
2455 "d_lrintl"
2457 From d_lrintl.U:
2458 This variable conditionally defines the "HAS_LRINTL" symbol, which
2460 indicates to the C program that the lrintl() routine is available
2461 to return the integral value closest to a long double (according to
2462 the current rounding mode).
2463 "d_lround"
2465 From d_lround.U:
2466 This variable conditionally defines the "HAS_LROUND" symbol, which
2468 indicates to the C program that the lround() routine is available
2469 to return the integral value nearest to x.
2470 "d_lroundl"
2472 From d_lroundl.U:
2473 This variable conditionally defines the "HAS_LROUNDL" symbol, which
2475 indicates to the C program that the lroundl() routine is available
2476 to return the integral value nearest to x away from zero.
2477 "d_lseekproto"
2479 From d_lseekproto.U:
2480 This variable conditionally defines the "HAS_LSEEK_PROTO" symbol,
2482 which indicates to the C program that the system provides a
2483 prototype for the lseek() function. Otherwise, it is up to the
2484 program to supply one.
2485 "d_lstat"
2487 From d_lstat.U:
2488 This variable conditionally defines "HAS_LSTAT" if lstat() is
2490 available to do file stats on symbolic links.
2491 "d_madvise"
2493 From d_madvise.U:
2494 This variable conditionally defines "HAS_MADVISE" if madvise() is
2496 available to map a file into memory.
2497 "d_malloc_good_size"
2499 From d_malloc_size.U:
2500 This symbol, if defined, indicates that the malloc_good_size
2502 routine is available for use.
2503 "d_malloc_size"
2505 From d_malloc_size.U:
2506 This symbol, if defined, indicates that the malloc_size routine is
2508 available for use.
2509 "d_mblen"
2511 From d_mblen.U:
2512 This variable conditionally defines the "HAS_MBLEN" symbol, which
2514 indicates to the C program that the mblen() routine is available to
2515 find the number of bytes in a multibye character.
2516 "d_mbrlen"
2518 From d_mbrlen.U:
2519 This variable conditionally defines the "HAS_MBRLEN" symbol if the
2521 mbrlen() routine is available to be used to get the length of
2522 multi-byte character strings.
2523 "d_mbrtowc"
2525 From d_mbrtowc.U:
2526 This variable conditionally defines the "HAS_MBRTOWC" symbol if the
2528 mbrtowc() routine is available to be used to convert a multi-byte
2529 character into a wide character.
2530 "d_mbstowcs"
2532 From d_mbstowcs.U:
2533 This variable conditionally defines the "HAS_MBSTOWCS" symbol,
2535 which indicates to the C program that the mbstowcs() routine is
2536 available to convert a multibyte string into a wide character
2537 string.
2538 "d_mbtowc"
2540 From d_mbtowc.U:
2541 This variable conditionally defines the "HAS_MBTOWC" symbol, which
2543 indicates to the C program that the mbtowc() routine is available
2544 to convert multibyte to a wide character.
2545 "d_memmem"
2547 From d_memmem.U:
2548 This variable conditionally defines the "HAS_MEMMEM" symbol, which
2550 indicates to the C program that the memmem() routine is available
2551 to return a pointer to the start of the first occurance of a
2552 substring in a memory area (or "NULL" if not found).
2553 "d_memrchr"
2555 From d_memrchr.U:
2556 This variable conditionally defines the "HAS_MEMRCHR" symbol, which
2558 indicates to the C program that the memrchr() routine is available
2559 to return a pointer to the last occurrence of a byte in a memory
2560 area (or "NULL" if not found).
2561 "d_mkdir"
2563 From d_mkdir.U:
2564 This variable conditionally defines the "HAS_MKDIR" symbol, which
2566 indicates to the C program that the mkdir() routine is available to
2567 create directories..
2568 "d_mkdtemp"
2570 From d_mkdtemp.U:
2571 This variable conditionally defines the "HAS_MKDTEMP" symbol, which
2573 indicates to the C program that the mkdtemp() routine is available
2574 to exclusively create a uniquely named temporary directory.
2575 "d_mkfifo"
2577 From d_mkfifo.U:
2578 This variable conditionally defines the "HAS_MKFIFO" symbol, which
2580 indicates to the C program that the mkfifo() routine is available.
2581 "d_mkostemp"
2583 From d_mkostemp.U:
2584 This variable conditionally defines "HAS_MKOSTEMP" if mkostemp() is
2586 available to exclusively create and open a uniquely named (with a
2587 suffix) temporary file.
2588 "d_mkstemp"
2590 From d_mkstemp.U:
2591 This variable conditionally defines the "HAS_MKSTEMP" symbol, which
2593 indicates to the C program that the mkstemp() routine is available
2594 to exclusively create and open a uniquely named temporary file.
2595 "d_mkstemps"
2597 From d_mkstemps.U:
2598 This variable conditionally defines the "HAS_MKSTEMPS" symbol,
2600 which indicates to the C program that the mkstemps() routine is
2601 available to exclusively create and open a uniquely named (with a
2602 suffix) temporary file.
2603 "d_mktime"
2605 From d_mktime.U:
2606 This variable conditionally defines the "HAS_MKTIME" symbol, which
2608 indicates to the C program that the mktime() routine is available.
2609 "d_mktime64"
2611 From d_timefuncs64.U:
2612 This variable conditionally defines the HAS_MKTIME64 symbol, which
2614 indicates to the C program that the mktime64 () routine is
2615 available.
2616 "d_mmap"
2618 From d_mmap.U:
2619 This variable conditionally defines "HAS_MMAP" if mmap() is
2621 available to map a file into memory.
2622 "d_modfl"
2624 From d_modfl.U:
2625 This variable conditionally defines the "HAS_MODFL" symbol, which
2627 indicates to the C program that the modfl() routine is available.
2628 "d_modflproto"
2630 From d_modfl.U:
2631 This symbol, if defined, indicates that the system provides a
2633 prototype for the modfl() function. Otherwise, it is up to the
2634 program to supply one. C99 says it should be long double
2635 modfl(long double, long double *);
2636 "d_mprotect"
2638 From d_mprotect.U:
2639 This variable conditionally defines "HAS_MPROTECT" if mprotect() is
2641 available to modify the access protection of a memory mapped file.
2642 "d_msg"
2644 From d_msg.U:
2645 This variable conditionally defines the "HAS_MSG" symbol, which
2647 indicates that the entire msg*(2) library is present.
2648 "d_msg_ctrunc"
2650 From d_socket.U:
2651 This variable conditionally defines the "HAS_MSG_CTRUNC" symbol,
2653 which indicates that the "MSG_CTRUNC" is available. #ifdef is not
2654 enough because it may be an enum, glibc has been known to do this.
2655 "d_msg_dontroute"
2657 From d_socket.U:
2658 This variable conditionally defines the "HAS_MSG_DONTROUTE" symbol,
2660 which indicates that the "MSG_DONTROUTE" is available. #ifdef is
2661 not enough because it may be an enum, glibc has been known to do
2662 this.
2663 "d_msg_oob"
2665 From d_socket.U:
2666 This variable conditionally defines the "HAS_MSG_OOB" symbol, which
2668 indicates that the "MSG_OOB" is available. #ifdef is not enough
2669 because it may be an enum, glibc has been known to do this.
2670 "d_msg_peek"
2672 From d_socket.U:
2673 This variable conditionally defines the "HAS_MSG_PEEK" symbol,
2675 which indicates that the "MSG_PEEK" is available. #ifdef is not
2676 enough because it may be an enum, glibc has been known to do this.
2677 "d_msg_proxy"
2679 From d_socket.U:
2680 This variable conditionally defines the "HAS_MSG_PROXY" symbol,
2682 which indicates that the "MSG_PROXY" is available. #ifdef is not
2683 enough because it may be an enum, glibc has been known to do this.
2684 "d_msgctl"
2686 From d_msgctl.U:
2687 This variable conditionally defines the "HAS_MSGCTL" symbol, which
2689 indicates to the C program that the msgctl() routine is available.
2690 "d_msgget"
2692 From d_msgget.U:
2693 This variable conditionally defines the "HAS_MSGGET" symbol, which
2695 indicates to the C program that the msgget() routine is available.
2696 "d_msghdr_s"
2698 From d_msghdr_s.U:
2699 This variable conditionally defines the "HAS_STRUCT_MSGHDR" symbol,
2701 which indicates that the struct msghdr is supported.
2702 "d_msgrcv"
2704 From d_msgrcv.U:
2705 This variable conditionally defines the "HAS_MSGRCV" symbol, which
2707 indicates to the C program that the msgrcv() routine is available.
2708 "d_msgsnd"
2710 From d_msgsnd.U:
2711 This variable conditionally defines the "HAS_MSGSND" symbol, which
2713 indicates to the C program that the msgsnd() routine is available.
2714 "d_msync"
2716 From d_msync.U:
2717 This variable conditionally defines "HAS_MSYNC" if msync() is
2719 available to synchronize a mapped file.
2720 "d_munmap"
2722 From d_munmap.U:
2723 This variable conditionally defines "HAS_MUNMAP" if munmap() is
2725 available to unmap a region mapped by mmap().
2726 "d_mymalloc"
2728 From mallocsrc.U:
2729 This variable conditionally defines "MYMALLOC" in case other parts
2731 of the source want to take special action if "MYMALLOC" is used.
2732 This may include different sorts of profiling or error detection.
2733 "d_nan"
2735 From d_nan.U:
2736 This variable conditionally defines "HAS_NAN" if nan() is available
2738 to generate NaN.
2739 "d_nanosleep"
2741 From d_nanosleep.U:
2742 This variable conditionally defines "HAS_NANOSLEEP" if nanosleep()
2744 is available to sleep with 1E-9 sec accuracy.
2745 "d_ndbm"
2747 From i_ndbm.U:
2748 This variable conditionally defines the "HAS_NDBM" symbol, which
2750 indicates that both the ndbm.h include file and an appropriate ndbm
2751 library exist. Consult the different i_*ndbm variables to find out
2752 the actual include location. Sometimes, a system has the header
2753 file but not the library. This variable will only be set if the
2754 system has both.
2755 "d_ndbm_h_uses_prototypes"
2757 From i_ndbm.U:
2758 This variable conditionally defines the "NDBM_H_USES_PROTOTYPES"
2760 symbol, which indicates that the ndbm.h include file uses real
2761 "ANSI" C prototypes instead of K&R style function declarations. K&R
2762 style declarations are unsupported in C++, so the include file
2763 requires special handling when using a C++ compiler and this
2764 variable is undefined. Consult the different
2765 d_*ndbm_h_uses_prototypes variables to get the same information for
2766 alternative ndbm.h include files.
2767 "d_nearbyint"
2769 From d_nearbyint.U:
2770 This variable conditionally defines "HAS_NEARBYINT" if nearbyint()
2772 is available to return the integral value closest to (according to
2773 the current rounding mode) to x.
2774 "d_newlocale"
2776 From d_newlocale.U:
2777 This variable conditionally defines the "HAS_NEWLOCALE" symbol,
2779 which indicates to the C program that the newlocale() routine is
2780 available to return a new locale object or modify an existing
2781 locale object.
2782 "d_nextafter"
2784 From d_nextafter.U:
2785 This variable conditionally defines "HAS_NEXTAFTER" if nextafter()
2787 is available to return the next machine representable double from x
2788 in direction y.
2789 "d_nexttoward"
2791 From d_nexttoward.U:
2792 This variable conditionally defines "HAS_NEXTTOWARD" if
2794 nexttoward() is available to return the next machine representable
2795 long double from x in direction y.
2796 "d_nice"
2798 From d_nice.U:
2799 This variable conditionally defines the "HAS_NICE" symbol, which
2801 indicates to the C program that the nice() routine is available.
2802 "d_nl_langinfo"
2804 From d_nl_langinfo.U:
2805 This variable conditionally defines the "HAS_NL_LANGINFO" symbol,
2807 which indicates to the C program that the nl_langinfo() routine is
2808 available.
2809 "d_nv_preserves_uv"
2811 From perlxv.U:
2812 This variable indicates whether a variable of type nvtype can
2814 preserve all the bits a variable of type uvtype.
2815 "d_nv_zero_is_allbits_zero"
2817 From perlxv.U:
2818 This variable indicates whether a variable of type nvtype stores
2820 0.0 in memory as all bits zero.
2821 "d_off64_t"
2823 From d_off64_t.U:
2824 This symbol will be defined if the C compiler supports off64_t.
2826 "d_old_pthread_create_joinable"
2828 From d_pthrattrj.U:
2829 This variable conditionally defines pthread_create_joinable. undef
2831 if pthread.h defines "PTHREAD_CREATE_JOINABLE".
2832 "d_oldpthreads"
2834 From usethreads.U:
2835 This variable conditionally defines the "OLD_PTHREADS_API" symbol,
2837 and indicates that Perl should be built to use the old draft
2838 "POSIX" threads "API". This is only potentially meaningful if
2839 usethreads is set.
2840 "d_oldsock"
2842 From d_socket.U:
2843 This variable conditionally defines the "OLDSOCKET" symbol, which
2845 indicates that the "BSD" socket interface is based on 4.1c and not
2846 4.2.
2847 "d_open3"
2849 From d_open3.U:
2850 This variable conditionally defines the HAS_OPEN3 manifest
2852 constant, which indicates to the C program that the 3 argument
2853 version of the open(2) function is available.
2854 "d_openat"
2856 From d_fsat.U:
2857 This variable conditionally defines the "HAS_OPENAT" symbol, which
2859 indicates the "POSIX" openat() function is available.
2860 "d_pathconf"
2862 From d_pathconf.U:
2863 This variable conditionally defines the "HAS_PATHCONF" symbol,
2865 which indicates to the C program that the pathconf() routine is
2866 available to determine file-system related limits and options
2867 associated with a given filename.
2868 "d_pause"
2870 From d_pause.U:
2871 This variable conditionally defines the "HAS_PAUSE" symbol, which
2873 indicates to the C program that the pause() routine is available to
2874 suspend a process until a signal is received.
2875 "d_perl_otherlibdirs"
2877 From otherlibdirs.U:
2878 This variable conditionally defines "PERL_OTHERLIBDIRS", which
2880 contains a colon-separated set of paths for the perl binary to
2881 include in @"INC". See also otherlibdirs.
2882 "d_phostname"
2884 From d_gethname.U:
2885 This variable conditionally defines the "HAS_PHOSTNAME" symbol,
2887 which contains the shell command which, when fed to popen(), may be
2888 used to derive the host name.
2889 "d_pipe"
2891 From d_pipe.U:
2892 This variable conditionally defines the "HAS_PIPE" symbol, which
2894 indicates to the C program that the pipe() routine is available to
2895 create an inter-process channel.
2896 "d_pipe2"
2898 From d_pipe2.U:
2899 This variable conditionally defines the HAS_PIPE2 symbol, which
2901 indicates to the C program that the pipe2() routine is available to
2902 create an inter-process channel.
2903 "d_poll"
2905 From d_poll.U:
2906 This variable conditionally defines the "HAS_POLL" symbol, which
2908 indicates to the C program that the poll() routine is available to
2909 poll active file descriptors.
2910 "d_portable"
2912 From d_portable.U:
2913 This variable conditionally defines the "PORTABLE" symbol, which
2915 indicates to the C program that it should not assume that it is
2916 running on the machine it was compiled on.
2917 "d_prctl"
2919 From d_prctl.U:
2920 This variable conditionally defines the "HAS_PRCTL" symbol, which
2922 indicates to the C program that the prctl() routine is available.
2923 Note that there are at least two prctl variants: Linux and Irix.
2924 While they are somewhat similar, they are incompatible.
2925 "d_prctl_set_name"
2927 From d_prctl.U:
2928 This variable conditionally defines the "HAS_PRCTL_SET_NAME"
2930 symbol, which indicates to the C program that the prctl() routine
2931 supports the "PR_SET_NAME" option.
2932 "d_PRId64"
2934 From quadfio.U:
2935 This variable conditionally defines the PERL_PRId64 symbol, which
2937 indicates that stdio has a symbol to print 64-bit decimal numbers.
2938 "d_PRIeldbl"
2940 From longdblfio.U:
2941 This variable conditionally defines the PERL_PRIfldbl symbol, which
2943 indicates that stdio has a symbol to print long doubles.
2944 "d_PRIEUldbl"
2946 From longdblfio.U:
2947 This variable conditionally defines the PERL_PRIfldbl symbol, which
2949 indicates that stdio has a symbol to print long doubles. The "U"
2950 in the name is to separate this from d_PRIeldbl so that even case-
2951 blind systems can see the difference.
2952 "d_PRIfldbl"
2954 From longdblfio.U:
2955 This variable conditionally defines the PERL_PRIfldbl symbol, which
2957 indicates that stdio has a symbol to print long doubles.
2958 "d_PRIFUldbl"
2960 From longdblfio.U:
2961 This variable conditionally defines the PERL_PRIfldbl symbol, which
2963 indicates that stdio has a symbol to print long doubles. The "U"
2964 in the name is to separate this from d_PRIfldbl so that even case-
2965 blind systems can see the difference.
2966 "d_PRIgldbl"
2968 From longdblfio.U:
2969 This variable conditionally defines the PERL_PRIfldbl symbol, which
2971 indicates that stdio has a symbol to print long doubles.
2972 "d_PRIGUldbl"
2974 From longdblfio.U:
2975 This variable conditionally defines the PERL_PRIfldbl symbol, which
2977 indicates that stdio has a symbol to print long doubles. The "U"
2978 in the name is to separate this from d_PRIgldbl so that even case-
2979 blind systems can see the difference.
2980 "d_PRIi64"
2982 From quadfio.U:
2983 This variable conditionally defines the PERL_PRIi64 symbol, which
2985 indicates that stdio has a symbol to print 64-bit decimal numbers.
2986 "d_printf_format_null"
2988 From d_attribut.U:
2989 This variable conditionally defines "PRINTF_FORMAT_NULL_OK", which
2991 indicates the C compiler allows printf-like formats to be null.
2992 "d_PRIo64"
2994 From quadfio.U:
2995 This variable conditionally defines the PERL_PRIo64 symbol, which
2997 indicates that stdio has a symbol to print 64-bit octal numbers.
2998 "d_PRIu64"
3000 From quadfio.U:
3001 This variable conditionally defines the PERL_PRIu64 symbol, which
3003 indicates that stdio has a symbol to print 64-bit unsigned decimal
3004 numbers.
3005 "d_PRIx64"
3007 From quadfio.U:
3008 This variable conditionally defines the PERL_PRIx64 symbol, which
3010 indicates that stdio has a symbol to print 64-bit hexadecimal
3011 numbers.
3012 "d_PRIXU64"
3014 From quadfio.U:
3015 This variable conditionally defines the PERL_PRIXU64 symbol, which
3017 indicates that stdio has a symbol to print 64-bit hExADECimAl
3018 numbers. The "U" in the name is to separate this from d_PRIx64 so
3019 that even case-blind systems can see the difference.
3020 "d_procselfexe"
3022 From d_procselfexe.U:
3023 Defined if $procselfexe is symlink to the absolute pathname of the
3025 executing program.
3026 "d_pseudofork"
3028 From d_vfork.U:
3029 This variable conditionally defines the "HAS_PSEUDOFORK" symbol,
3031 which indicates that an emulation of the fork routine is available.
3032 "d_pthread_atfork"
3034 From d_pthread_atfork.U:
3035 This variable conditionally defines the "HAS_PTHREAD_ATFORK"
3037 symbol, which indicates to the C program that the pthread_atfork()
3038 routine is available.
3039 "d_pthread_attr_setscope"
3041 From d_pthread_attr_ss.U:
3042 This variable conditionally defines "HAS_PTHREAD_ATTR_SETSCOPE" if
3044 pthread_attr_setscope() is available to set the contention scope
3045 attribute of a thread attribute object.
3046 "d_pthread_yield"
3048 From d_pthread_y.U:
3049 This variable conditionally defines the "HAS_PTHREAD_YIELD" symbol
3051 if the pthread_yield routine is available to yield the execution of
3052 the current thread.
3053 "d_ptrdiff_t"
3055 From d_ptrdiff_t.U:
3056 This symbol will be defined if the C compiler supports ptrdiff_t.
3058 "d_pwage"
3060 From i_pwd.U:
3061 This variable conditionally defines "PWAGE", which indicates that
3063 struct passwd contains pw_age.
3064 "d_pwchange"
3066 From i_pwd.U:
3067 This variable conditionally defines "PWCHANGE", which indicates
3069 that struct passwd contains pw_change.
3070 "d_pwclass"
3072 From i_pwd.U:
3073 This variable conditionally defines "PWCLASS", which indicates that
3075 struct passwd contains pw_class.
3076 "d_pwcomment"
3078 From i_pwd.U:
3079 This variable conditionally defines "PWCOMMENT", which indicates
3081 that struct passwd contains pw_comment.
3082 "d_pwexpire"
3084 From i_pwd.U:
3085 This variable conditionally defines "PWEXPIRE", which indicates
3087 that struct passwd contains pw_expire.
3088 "d_pwgecos"
3090 From i_pwd.U:
3091 This variable conditionally defines "PWGECOS", which indicates that
3093 struct passwd contains pw_gecos.
3094 "d_pwpasswd"
3096 From i_pwd.U:
3097 This variable conditionally defines "PWPASSWD", which indicates
3099 that struct passwd contains pw_passwd.
3100 "d_pwquota"
3102 From i_pwd.U:
3103 This variable conditionally defines "PWQUOTA", which indicates that
3105 struct passwd contains pw_quota.
3106 "d_qgcvt"
3108 From d_qgcvt.U:
3109 This variable conditionally defines the "HAS_QGCVT" symbol, which
3111 indicates to the C program that the qgcvt() routine is available.
3112 "d_quad"
3114 From quadtype.U:
3115 This variable, if defined, tells that there's a 64-bit integer
3117 type, quadtype.
3118 "d_querylocale"
3120 From d_newlocale.U:
3121 This variable conditionally defines the "HAS_QUERYLOCALE" symbol,
3123 which indicates to the C program that the querylocale() routine is
3124 available to return the name of the locale for a category mask.
3125 "d_random_r"
3127 From d_random_r.U:
3128 This variable conditionally defines the "HAS_RANDOM_R" symbol,
3130 which indicates to the C program that the random_r() routine is
3131 available.
3132 "d_re_comp"
3134 From d_regcmp.U:
3135 This variable conditionally defines the "HAS_RECOMP" symbol, which
3137 indicates to the C program that the re_comp() routine is available
3138 for regular pattern matching (usually on "BSD"). If so, it is
3139 likely that re_exec() exists.
3140 "d_readdir"
3142 From d_readdir.U:
3143 This variable conditionally defines "HAS_READDIR" if readdir() is
3145 available to read directory entries.
3146 "d_readdir64_r"
3148 From d_readdir64_r.U:
3149 This variable conditionally defines the HAS_READDIR64_R symbol,
3151 which indicates to the C program that the readdir64_r() routine is
3152 available.
3153 "d_readdir_r"
3155 From d_readdir_r.U:
3156 This variable conditionally defines the "HAS_READDIR_R" symbol,
3158 which indicates to the C program that the readdir_r() routine is
3159 available.
3160 "d_readlink"
3162 From d_readlink.U:
3163 This variable conditionally defines the "HAS_READLINK" symbol,
3165 which indicates to the C program that the readlink() routine is
3166 available to read the value of a symbolic link.
3167 "d_readv"
3169 From d_readv.U:
3170 This variable conditionally defines the "HAS_READV" symbol, which
3172 indicates to the C program that the readv() routine is available.
3173 "d_recvmsg"
3175 From d_recvmsg.U:
3176 This variable conditionally defines the "HAS_RECVMSG" symbol, which
3178 indicates to the C program that the recvmsg() routine is available.
3179 "d_regcmp"
3181 From d_regcmp.U:
3182 This variable conditionally defines the "HAS_REGCMP" symbol, which
3184 indicates to the C program that the regcmp() routine is available
3185 for regular pattern matching (usually on System V).
3186 "d_regcomp"
3188 From d_regcmp.U:
3189 This variable conditionally defines the "HAS_REGCOMP" symbol, which
3191 indicates to the C program that the regcomp() routine is available
3192 for regular pattern matching (usually on POSIX.2 conforming
3193 systems).
3194 "d_remainder"
3196 From d_remainder.U:
3197 This variable conditionally defines the "HAS_REMAINDER" symbol,
3199 which indicates to the C program that the remainder() routine is
3200 available.
3201 "d_remquo"
3203 From d_remquo.U:
3204 This variable conditionally defines the "HAS_REMQUO" symbol, which
3206 indicates to the C program that the remquo() routine is available.
3207 "d_rename"
3209 From d_rename.U:
3210 This variable conditionally defines the "HAS_RENAME" symbol, which
3212 indicates to the C program that the rename() routine is available
3213 to rename files.
3214 "d_renameat"
3216 From d_fsat.U:
3217 This variable conditionally defines the "HAS_RENAMEAT" symbol,
3219 which indicates the "POSIX" renameat() function is available.
3220 "d_rewinddir"
3222 From d_readdir.U:
3223 This variable conditionally defines "HAS_REWINDDIR" if rewinddir()
3225 is available.
3226 "d_rint"
3228 From d_rint.U:
3229 This variable conditionally defines the "HAS_RINT" symbol, which
3231 indicates to the C program that the rint() routine is available.
3232 "d_rmdir"
3234 From d_rmdir.U:
3235 This variable conditionally defines "HAS_RMDIR" if rmdir() is
3237 available to remove directories.
3238 "d_round"
3240 From d_round.U:
3241 This variable conditionally defines the "HAS_ROUND" symbol, which
3243 indicates to the C program that the round() routine is available.
3244 "d_sbrkproto"
3246 From d_sbrkproto.U:
3247 This variable conditionally defines the "HAS_SBRK_PROTO" symbol,
3249 which indicates to the C program that the system provides a
3250 prototype for the sbrk() function. Otherwise, it is up to the
3251 program to supply one.
3252 "d_scalbn"
3254 From d_scalbn.U:
3255 This variable conditionally defines the "HAS_SCALBN" symbol, which
3257 indicates to the C program that the scalbn() routine is available.
3258 "d_scalbnl"
3260 From d_scalbnl.U:
3261 This variable conditionally defines the "HAS_SCALBNL" symbol, which
3263 indicates to the C program that the scalbnl() routine is available.
3264 If ilogbl is also present we can emulate frexpl.
3265 "d_sched_yield"
3267 From d_pthread_y.U:
3268 This variable conditionally defines the "HAS_SCHED_YIELD" symbol if
3270 the sched_yield routine is available to yield the execution of the
3271 current thread.
3272 "d_scm_rights"
3274 From d_socket.U:
3275 This variable conditionally defines the "HAS_SCM_RIGHTS" symbol,
3277 which indicates that the "SCM_RIGHTS" is available. #ifdef is not
3278 enough because it may be an enum, glibc has been known to do this.
3279 "d_SCNfldbl"
3281 From longdblfio.U:
3282 This variable conditionally defines the PERL_PRIfldbl symbol, which
3284 indicates that stdio has a symbol to scan long doubles.
3285 "d_seekdir"
3287 From d_readdir.U:
3288 This variable conditionally defines "HAS_SEEKDIR" if seekdir() is
3290 available.
3291 "d_select"
3293 From d_select.U:
3294 This variable conditionally defines "HAS_SELECT" if select() is
3296 available to select active file descriptors. A <sys/time.h>
3297 inclusion may be necessary for the timeout field.
3298 "d_sem"
3300 From d_sem.U:
3301 This variable conditionally defines the "HAS_SEM" symbol, which
3303 indicates that the entire sem*(2) library is present.
3304 "d_semctl"
3306 From d_semctl.U:
3307 This variable conditionally defines the "HAS_SEMCTL" symbol, which
3309 indicates to the C program that the semctl() routine is available.
3310 "d_semctl_semid_ds"
3312 From d_union_semun.U:
3313 This variable conditionally defines "USE_SEMCTL_SEMID_DS", which
3315 indicates that struct semid_ds * is to be used for semctl
3316 "IPC_STAT".
3317 "d_semctl_semun"
3319 From d_union_semun.U:
3320 This variable conditionally defines "USE_SEMCTL_SEMUN", which
3322 indicates that union semun is to be used for semctl "IPC_STAT".
3323 "d_semget"
3325 From d_semget.U:
3326 This variable conditionally defines the "HAS_SEMGET" symbol, which
3328 indicates to the C program that the semget() routine is available.
3329 "d_semop"
3331 From d_semop.U:
3332 This variable conditionally defines the "HAS_SEMOP" symbol, which
3334 indicates to the C program that the semop() routine is available.
3335 "d_sendmsg"
3337 From d_sendmsg.U:
3338 This variable conditionally defines the "HAS_SENDMSG" symbol, which
3340 indicates to the C program that the sendmsg() routine is available.
3341 "d_setegid"
3343 From d_setegid.U:
3344 This variable conditionally defines the "HAS_SETEGID" symbol, which
3346 indicates to the C program that the setegid() routine is available
3347 to change the effective gid of the current program.
3348 "d_seteuid"
3350 From d_seteuid.U:
3351 This variable conditionally defines the "HAS_SETEUID" symbol, which
3353 indicates to the C program that the seteuid() routine is available
3354 to change the effective uid of the current program.
3355 "d_setgrent"
3357 From d_setgrent.U:
3358 This variable conditionally defines the "HAS_SETGRENT" symbol,
3360 which indicates to the C program that the setgrent() routine is
3361 available for initializing sequential access to the group database.
3362 "d_setgrent_r"
3364 From d_setgrent_r.U:
3365 This variable conditionally defines the "HAS_SETGRENT_R" symbol,
3367 which indicates to the C program that the setgrent_r() routine is
3368 available.
3369 "d_setgrps"
3371 From d_setgrps.U:
3372 This variable conditionally defines the "HAS_SETGROUPS" symbol,
3374 which indicates to the C program that the setgroups() routine is
3375 available to set the list of process groups.
3376 "d_sethent"
3378 From d_sethent.U:
3379 This variable conditionally defines "HAS_SETHOSTENT" if
3381 sethostent() is available.
3382 "d_sethostent_r"
3384 From d_sethostent_r.U:
3385 This variable conditionally defines the "HAS_SETHOSTENT_R" symbol,
3387 which indicates to the C program that the sethostent_r() routine is
3388 available.
3389 "d_setitimer"
3391 From d_setitimer.U:
3392 This variable conditionally defines the "HAS_SETITIMER" symbol,
3394 which indicates to the C program that the setitimer() routine is
3395 available.
3396 "d_setlinebuf"
3398 From d_setlnbuf.U:
3399 This variable conditionally defines the "HAS_SETLINEBUF" symbol,
3401 which indicates to the C program that the setlinebuf() routine is
3402 available to change stderr or stdout from block-buffered or
3403 unbuffered to a line-buffered mode.
3404 "d_setlocale"
3406 From d_setlocale.U:
3407 This variable conditionally defines "HAS_SETLOCALE" if setlocale()
3409 is available to handle locale-specific ctype implementations.
3410 "d_setlocale_accepts_any_locale_name"
3412 From d_setlocale.U:
3413 This variable conditionally defines
3415 "SETLOCALE_ACCEPTS_ANY_LOCALE_NAME" if setlocale() accepts any
3416 locale name.
3417 "d_setlocale_r"
3419 From d_setlocale_r.U:
3420 This variable conditionally defines the "HAS_SETLOCALE_R" symbol,
3422 which indicates to the C program that the setlocale_r() routine is
3423 available.
3424 "d_setnent"
3426 From d_setnent.U:
3427 This variable conditionally defines "HAS_SETNETENT" if setnetent()
3429 is available.
3430 "d_setnetent_r"
3432 From d_setnetent_r.U:
3433 This variable conditionally defines the "HAS_SETNETENT_R" symbol,
3435 which indicates to the C program that the setnetent_r() routine is
3436 available.
3437 "d_setpent"
3439 From d_setpent.U:
3440 This variable conditionally defines "HAS_SETPROTOENT" if
3442 setprotoent() is available.
3443 "d_setpgid"
3445 From d_setpgid.U:
3446 This variable conditionally defines the "HAS_SETPGID" symbol if the
3448 setpgid(pid, gpid) function is available to set process group "ID".
3449 "d_setpgrp"
3451 From d_setpgrp.U:
3452 This variable conditionally defines "HAS_SETPGRP" if setpgrp() is
3454 available to set the current process group.
3455 "d_setpgrp2"
3457 From d_setpgrp2.U:
3458 This variable conditionally defines the HAS_SETPGRP2 symbol, which
3460 indicates to the C program that the setpgrp2() (as in DG/"UX")
3461 routine is available to set the current process group.
3462 "d_setprior"
3464 From d_setprior.U:
3465 This variable conditionally defines "HAS_SETPRIORITY" if
3467 setpriority() is available to set a process's priority.
3468 "d_setproctitle"
3470 From d_setproctitle.U:
3471 This variable conditionally defines the "HAS_SETPROCTITLE" symbol,
3473 which indicates to the C program that the setproctitle() routine is
3474 available.
3475 "d_setprotoent_r"
3477 From d_setprotoent_r.U:
3478 This variable conditionally defines the "HAS_SETPROTOENT_R" symbol,
3480 which indicates to the C program that the setprotoent_r() routine
3481 is available.
3482 "d_setpwent"
3484 From d_setpwent.U:
3485 This variable conditionally defines the "HAS_SETPWENT" symbol,
3487 which indicates to the C program that the setpwent() routine is
3488 available for initializing sequential access to the passwd
3489 database.
3490 "d_setpwent_r"
3492 From d_setpwent_r.U:
3493 This variable conditionally defines the "HAS_SETPWENT_R" symbol,
3495 which indicates to the C program that the setpwent_r() routine is
3496 available.
3497 "d_setregid"
3499 From d_setregid.U:
3500 This variable conditionally defines "HAS_SETREGID" if setregid() is
3502 available to change the real and effective gid of the current
3503 process.
3504 "d_setresgid"
3506 From d_setregid.U:
3507 This variable conditionally defines "HAS_SETRESGID" if setresgid()
3509 is available to change the real, effective and saved gid of the
3510 current process.
3511 "d_setresuid"
3513 From d_setreuid.U:
3514 This variable conditionally defines "HAS_SETREUID" if setresuid()
3516 is available to change the real, effective and saved uid of the
3517 current process.
3518 "d_setreuid"
3520 From d_setreuid.U:
3521 This variable conditionally defines "HAS_SETREUID" if setreuid() is
3523 available to change the real and effective uid of the current
3524 process.
3525 "d_setrgid"
3527 From d_setrgid.U:
3528 This variable conditionally defines the "HAS_SETRGID" symbol, which
3530 indicates to the C program that the setrgid() routine is available
3531 to change the real gid of the current program.
3532 "d_setruid"
3534 From d_setruid.U:
3535 This variable conditionally defines the "HAS_SETRUID" symbol, which
3537 indicates to the C program that the setruid() routine is available
3538 to change the real uid of the current program.
3539 "d_setsent"
3541 From d_setsent.U:
3542 This variable conditionally defines "HAS_SETSERVENT" if
3544 setservent() is available.
3545 "d_setservent_r"
3547 From d_setservent_r.U:
3548 This variable conditionally defines the "HAS_SETSERVENT_R" symbol,
3550 which indicates to the C program that the setservent_r() routine is
3551 available.
3552 "d_setsid"
3554 From d_setsid.U:
3555 This variable conditionally defines "HAS_SETSID" if setsid() is
3557 available to set the process group "ID".
3558 "d_setvbuf"
3560 From d_setvbuf.U:
3561 This variable conditionally defines the "HAS_SETVBUF" symbol, which
3563 indicates to the C program that the setvbuf() routine is available
3564 to change buffering on an open stdio stream.
3565 "d_shm"
3567 From d_shm.U:
3568 This variable conditionally defines the "HAS_SHM" symbol, which
3570 indicates that the entire shm*(2) library is present.
3571 "d_shmat"
3573 From d_shmat.U:
3574 This variable conditionally defines the "HAS_SHMAT" symbol, which
3576 indicates to the C program that the shmat() routine is available.
3577 "d_shmatprototype"
3579 From d_shmat.U:
3580 This variable conditionally defines the "HAS_SHMAT_PROTOTYPE"
3582 symbol, which indicates that sys/shm.h has a prototype for shmat.
3583 "d_shmctl"
3585 From d_shmctl.U:
3586 This variable conditionally defines the "HAS_SHMCTL" symbol, which
3588 indicates to the C program that the shmctl() routine is available.
3589 "d_shmdt"
3591 From d_shmdt.U:
3592 This variable conditionally defines the "HAS_SHMDT" symbol, which
3594 indicates to the C program that the shmdt() routine is available.
3595 "d_shmget"
3597 From d_shmget.U:
3598 This variable conditionally defines the "HAS_SHMGET" symbol, which
3600 indicates to the C program that the shmget() routine is available.
3601 "d_sigaction"
3603 From d_sigaction.U:
3604 This variable conditionally defines the "HAS_SIGACTION" symbol,
3606 which indicates that the Vr4 sigaction() routine is available.
3607 "d_siginfo_si_addr"
3609 From d_siginfo_si.U:
3610 This variable conditionally defines the "HAS_SIGINFO_SI_ADDR"
3612 symbol, which indicates that the siginfo_t struct has the si_addr
3613 member.
3614 "d_siginfo_si_band"
3616 From d_siginfo_si.U:
3617 This variable conditionally defines the "HAS_SIGINFO_SI_BAND"
3619 symbol, which indicates that the siginfo_t struct has the si_band
3620 member.
3621 "d_siginfo_si_errno"
3623 From d_siginfo_si.U:
3624 This variable conditionally defines the "HAS_SIGINFO_SI_ERRNO"
3626 symbol, which indicates that the siginfo_t struct has the si_errno
3627 member.
3628 "d_siginfo_si_fd"
3630 From d_siginfo_si.U:
3631 This variable conditionally defines the "HAS_SIGINFO_SI_FD" symbol,
3633 which indicates that the siginfo_t struct has the si_fd member.
3634 "d_siginfo_si_pid"
3636 From d_siginfo_si.U:
3637 This variable conditionally defines the "HAS_SIGINFO_SI_PID"
3639 symbol, which indicates that the siginfo_t struct has the si_pid
3640 member.
3641 "d_siginfo_si_status"
3643 From d_siginfo_si.U:
3644 This variable conditionally defines the "HAS_SIGINFO_SI_STATUS"
3646 symbol, which indicates that the siginfo_t struct has the si_status
3647 member.
3648 "d_siginfo_si_uid"
3650 From d_siginfo_si.U:
3651 This variable conditionally defines the "HAS_SIGINFO_SI_UID"
3653 symbol, which indicates that the siginfo_t struct has the si_uid
3654 member.
3655 "d_siginfo_si_value"
3657 From d_siginfo_si.U:
3658 This variable conditionally defines the "HAS_SIGINFO_SI_VALUE"
3660 symbol, which indicates that the siginfo_t struct has the si_value
3661 member.
3662 "d_signbit"
3664 From d_signbit.U:
3665 This variable conditionally defines the "HAS_SIGNBIT" symbol, which
3667 indicates to the C program that the signbit() routine is available
3668 and safe to use with perl's intern "NV" type.
3669 "d_sigprocmask"
3671 From d_sigprocmask.U:
3672 This variable conditionally defines "HAS_SIGPROCMASK" if
3674 sigprocmask() is available to examine or change the signal mask of
3675 the calling process.
3676 "d_sigsetjmp"
3678 From d_sigsetjmp.U:
3679 This variable conditionally defines the "HAS_SIGSETJMP" symbol,
3681 which indicates that the sigsetjmp() routine is available to call
3682 setjmp() and optionally save the process's signal mask.
3683 "d_sin6_scope_id"
3685 From d_socket.U:
3686 This variable conditionally defines the HAS_SIN6_SCOPE_ID symbol,
3688 which indicates that a struct sockaddr_in6 structure has the
3689 sin6_scope_id member.
3690 "d_sitearch"
3692 From sitearch.U:
3693 This variable conditionally defines "SITEARCH" to hold the pathname
3695 of architecture-dependent library files for $package. If $sitearch
3696 is the same as $archlib, then this is set to undef.
3697 "d_snprintf"
3699 From d_snprintf.U:
3700 This variable conditionally defines the "HAS_SNPRINTF" symbol,
3702 which indicates to the C program that the snprintf () library
3703 function is available.
3704 "d_sockaddr_in6"
3706 From d_socket.U:
3707 This variable conditionally defines the HAS_SOCKADDR_IN6 symbol,
3709 which indicates the availability of a struct sockaddr_in6.
3710 "d_sockaddr_sa_len"
3712 From d_socket.U:
3713 This variable conditionally defines the "HAS_SOCKADDR_SA_LEN"
3715 symbol, which indicates that a struct sockaddr structure has the
3716 sa_len member.
3717 "d_sockatmark"
3719 From d_sockatmark.U:
3720 This variable conditionally defines the "HAS_SOCKATMARK" symbol,
3722 which indicates to the C program that the sockatmark() routine is
3723 available.
3724 "d_sockatmarkproto"
3726 From d_sockatmarkproto.U:
3727 This variable conditionally defines the "HAS_SOCKATMARK_PROTO"
3729 symbol, which indicates to the C program that the system provides a
3730 prototype for the sockatmark() function. Otherwise, it is up to
3731 the program to supply one.
3732 "d_socket"
3734 From d_socket.U:
3735 This variable conditionally defines "HAS_SOCKET", which indicates
3737 that the "BSD" socket interface is supported.
3738 "d_socklen_t"
3740 From d_socklen_t.U:
3741 This symbol will be defined if the C compiler supports socklen_t.
3743 "d_sockpair"
3745 From d_socket.U:
3746 This variable conditionally defines the "HAS_SOCKETPAIR" symbol,
3748 which indicates that the "BSD" socketpair() is supported.
3749 "d_socks5_init"
3751 From d_socks5_init.U:
3752 This variable conditionally defines the HAS_SOCKS5_INIT symbol,
3754 which indicates to the C program that the socks5_init() routine is
3755 available.
3756 "d_sqrtl"
3758 From d_sqrtl.U:
3759 This variable conditionally defines the "HAS_SQRTL" symbol, which
3761 indicates to the C program that the sqrtl() routine is available.
3762 "d_srand48_r"
3764 From d_srand48_r.U:
3765 This variable conditionally defines the HAS_SRAND48_R symbol, which
3767 indicates to the C program that the srand48_r() routine is
3768 available.
3769 "d_srandom_r"
3771 From d_srandom_r.U:
3772 This variable conditionally defines the "HAS_SRANDOM_R" symbol,
3774 which indicates to the C program that the srandom_r() routine is
3775 available.
3776 "d_sresgproto"
3778 From d_sresgproto.U:
3779 This variable conditionally defines the "HAS_SETRESGID_PROTO"
3781 symbol, which indicates to the C program that the system provides a
3782 prototype for the setresgid() function. Otherwise, it is up to the
3783 program to supply one.
3784 "d_sresuproto"
3786 From d_sresuproto.U:
3787 This variable conditionally defines the "HAS_SETRESUID_PROTO"
3789 symbol, which indicates to the C program that the system provides a
3790 prototype for the setresuid() function. Otherwise, it is up to the
3791 program to supply one.
3792 "d_stat"
3794 From d_stat.U:
3795 This variable conditionally defines "HAS_STAT" if stat() is
3797 available to get file status.
3798 "d_statblks"
3800 From d_statblks.U:
3801 This variable conditionally defines "USE_STAT_BLOCKS" if this
3803 system has a stat structure declaring st_blksize and st_blocks.
3804 "d_statfs_f_flags"
3806 From d_statfs_f_flags.U:
3807 This variable conditionally defines the "HAS_STRUCT_STATFS_F_FLAGS"
3809 symbol, which indicates to struct statfs from has f_flags member.
3810 This kind of struct statfs is coming from sys/mount.h ("BSD"), not
3811 from sys/statfs.h ("SYSV").
3812 "d_statfs_s"
3814 From d_statfs_s.U:
3815 This variable conditionally defines the "HAS_STRUCT_STATFS" symbol,
3817 which indicates that the struct statfs is supported.
3818 "d_static_inline"
3820 From d_static_inline.U:
3821 This variable conditionally defines the "HAS_STATIC_INLINE" symbol,
3823 which indicates that the C compiler supports C99-style static
3824 inline. That is, the function can't be called from another
3825 translation unit.
3826 "d_statvfs"
3828 From d_statvfs.U:
3829 This variable conditionally defines the "HAS_STATVFS" symbol, which
3831 indicates to the C program that the statvfs() routine is available.
3832 "d_stdio_cnt_lval"
3834 From d_stdstdio.U:
3835 This variable conditionally defines "STDIO_CNT_LVALUE" if the
3837 "FILE_cnt" macro can be used as an lvalue.
3838 "d_stdio_ptr_lval"
3840 From d_stdstdio.U:
3841 This variable conditionally defines "STDIO_PTR_LVALUE" if the
3843 "FILE_ptr" macro can be used as an lvalue.
3844 "d_stdio_ptr_lval_nochange_cnt"
3846 From d_stdstdio.U:
3847 This symbol is defined if using the "FILE_ptr" macro as an lvalue
3849 to increase the pointer by n leaves File_cnt(fp) unchanged.
3850 "d_stdio_ptr_lval_sets_cnt"
3852 From d_stdstdio.U:
3853 This symbol is defined if using the "FILE_ptr" macro as an lvalue
3855 to increase the pointer by n has the side effect of decreasing the
3856 value of File_cnt(fp) by n.
3857 "d_stdio_stream_array"
3859 From stdio_streams.U:
3860 This variable tells whether there is an array holding the stdio
3862 streams.
3863 "d_stdiobase"
3865 From d_stdstdio.U:
3866 This variable conditionally defines "USE_STDIO_BASE" if this system
3868 has a "FILE" structure declaring a usable _base field (or
3869 equivalent) in stdio.h.
3870 "d_stdstdio"
3872 From d_stdstdio.U:
3873 This variable conditionally defines "USE_STDIO_PTR" if this system
3875 has a "FILE" structure declaring usable _ptr and _cnt fields (or
3876 equivalent) in stdio.h.
3877 "d_strcoll"
3879 From d_strcoll.U:
3880 This variable conditionally defines "HAS_STRCOLL" if strcoll() is
3882 available to compare strings using collating information.
3883 "d_strerror_l"
3885 From d_strerror_l.U:
3886 This variable conditionally defines the "HAS_STRERROR_L" symbol,
3888 which indicates to the C program that the strerror_l() routine is
3889 available to return the error message for a given errno value in a
3890 particular locale (identified by a locale_t object).
3891 "d_strerror_r"
3893 From d_strerror_r.U:
3894 This variable conditionally defines the "HAS_STRERROR_R" symbol,
3896 which indicates to the C program that the strerror_r() routine is
3897 available.
3898 "d_strftime"
3900 From d_strftime.U:
3901 This variable conditionally defines the "HAS_STRFTIME" symbol,
3903 which indicates to the C program that the strftime() routine is
3904 available.
3905 "d_strlcat"
3907 From d_strlcat.U:
3908 This variable conditionally defines the "HAS_STRLCAT" symbol, which
3910 indicates to the C program that the strlcat () routine is
3911 available.
3912 "d_strlcpy"
3914 From d_strlcpy.U:
3915 This variable conditionally defines the "HAS_STRLCPY" symbol, which
3917 indicates to the C program that the strlcpy () routine is
3918 available.
3919 "d_strnlen"
3921 From d_strnlen.U:
3922 This variable conditionally defines the "HAS_STRNLEN" symbol, which
3924 indicates to the C program that the strnlen () routine is
3925 available.
3926 "d_strtod"
3928 From d_strtod.U:
3929 This variable conditionally defines the "HAS_STRTOD" symbol, which
3931 indicates to the C program that the strtod() routine is available
3932 to provide better numeric string conversion than atof().
3933 "d_strtod_l"
3935 From d_strtod_l.U:
3936 This variable conditionally defines the "HAS_STRTOD_L" symbol,
3938 which indicates to the C program that the strtod_l() routine is
3939 available.
3940 "d_strtol"
3942 From d_strtol.U:
3943 This variable conditionally defines the "HAS_STRTOL" symbol, which
3945 indicates to the C program that the strtol() routine is available
3946 to provide better numeric string conversion than atoi() and
3947 friends.
3948 "d_strtold"
3950 From d_strtold.U:
3951 This variable conditionally defines the "HAS_STRTOLD" symbol, which
3953 indicates to the C program that the strtold() routine is available.
3954 "d_strtold_l"
3956 From d_strtold_l.U:
3957 This variable conditionally defines the "HAS_STRTOLD_L" symbol,
3959 which indicates to the C program that the strtold_l() routine is
3960 available.
3961 "d_strtoll"
3963 From d_strtoll.U:
3964 This variable conditionally defines the "HAS_STRTOLL" symbol, which
3966 indicates to the C program that the strtoll() routine is available.
3967 "d_strtoq"
3969 From d_strtoq.U:
3970 This variable conditionally defines the "HAS_STRTOQ" symbol, which
3972 indicates to the C program that the strtoq() routine is available.
3973 "d_strtoul"
3975 From d_strtoul.U:
3976 This variable conditionally defines the "HAS_STRTOUL" symbol, which
3978 indicates to the C program that the strtoul() routine is available
3979 to provide conversion of strings to unsigned long.
3980 "d_strtoull"
3982 From d_strtoull.U:
3983 This variable conditionally defines the "HAS_STRTOULL" symbol,
3985 which indicates to the C program that the strtoull() routine is
3986 available.
3987 "d_strtouq"
3989 From d_strtouq.U:
3990 This variable conditionally defines the "HAS_STRTOUQ" symbol, which
3992 indicates to the C program that the strtouq() routine is available.
3993 "d_strxfrm"
3995 From d_strxfrm.U:
3996 This variable conditionally defines "HAS_STRXFRM" if strxfrm() is
3998 available to transform strings.
3999 "d_suidsafe"
4001 From d_dosuid.U:
4002 This variable conditionally defines "SETUID_SCRIPTS_ARE_SECURE_NOW"
4004 if setuid scripts can be secure. This test looks in /dev/fd/.
4005 "d_symlink"
4007 From d_symlink.U:
4008 This variable conditionally defines the "HAS_SYMLINK" symbol, which
4010 indicates to the C program that the symlink() routine is available
4011 to create symbolic links.
4012 "d_syscall"
4014 From d_syscall.U:
4015 This variable conditionally defines "HAS_SYSCALL" if syscall() is
4017 available call arbitrary system calls.
4018 "d_syscallproto"
4020 From d_syscallproto.U:
4021 This variable conditionally defines the "HAS_SYSCALL_PROTO" symbol,
4023 which indicates to the C program that the system provides a
4024 prototype for the syscall() function. Otherwise, it is up to the
4025 program to supply one.
4026 "d_sysconf"
4028 From d_sysconf.U:
4029 This variable conditionally defines the "HAS_SYSCONF" symbol, which
4031 indicates to the C program that the sysconf() routine is available
4032 to determine system related limits and options.
4033 "d_sysernlst"
4035 From d_strerror.U:
4036 This variable conditionally defines "HAS_SYS_ERRNOLIST" if
4038 sys_errnolist[] is available to translate error numbers to the
4039 symbolic name.
4040 "d_syserrlst"
4042 From d_strerror.U:
4043 This variable conditionally defines "HAS_SYS_ERRLIST" if
4045 sys_errlist[] is available to translate error numbers to strings.
4046 "d_system"
4048 From d_system.U:
4049 This variable conditionally defines "HAS_SYSTEM" if system() is
4051 available to issue a shell command.
4052 "d_tcgetpgrp"
4054 From d_tcgtpgrp.U:
4055 This variable conditionally defines the "HAS_TCGETPGRP" symbol,
4057 which indicates to the C program that the tcgetpgrp() routine is
4058 available. to get foreground process group "ID".
4059 "d_tcsetpgrp"
4061 From d_tcstpgrp.U:
4062 This variable conditionally defines the "HAS_TCSETPGRP" symbol,
4064 which indicates to the C program that the tcsetpgrp() routine is
4065 available to set foreground process group "ID".
4066 "d_telldir"
4068 From d_readdir.U:
4069 This variable conditionally defines "HAS_TELLDIR" if telldir() is
4071 available.
4072 "d_telldirproto"
4074 From d_telldirproto.U:
4075 This variable conditionally defines the "HAS_TELLDIR_PROTO" symbol,
4077 which indicates to the C program that the system provides a
4078 prototype for the telldir() function. Otherwise, it is up to the
4079 program to supply one.
4080 "d_tgamma"
4082 From d_tgamma.U:
4083 This variable conditionally defines the "HAS_TGAMMA" symbol, which
4085 indicates to the C program that the tgamma() routine is available
4086 for the gamma function. See also d_lgamma.
4087 "d_thread_safe_nl_langinfo_l"
4089 From d_nl_langinfo_l.U:
4090 This variable contains the eventual value of the
4092 "HAS_THREAD_SAFE_NL_LANGINFO_L" symbol, which indicates if the
4093 nl_langinfo_l() function exists and is thread-safe.
4094 "d_time"
4096 From d_time.U:
4097 This variable conditionally defines the "HAS_TIME" symbol, which
4099 indicates that the time() routine exists. The time() routine is
4100 normally provided on "UNIX" systems.
4101 "d_timegm"
4103 From d_timegm.U:
4104 This variable conditionally defines the "HAS_TIMEGM" symbol, which
4106 indicates to the C program that the timegm () routine is available.
4107 "d_times"
4109 From d_times.U:
4110 This variable conditionally defines the "HAS_TIMES" symbol, which
4112 indicates that the times() routine exists. The times() routine is
4113 normally provided on "UNIX" systems. You may have to include
4114 <sys/times.h>.
4115 "d_tm_tm_gmtoff"
4117 From i_time.U:
4118 This variable conditionally defines "HAS_TM_TM_GMTOFF", which
4120 indicates to the C program that the struct tm has the tm_gmtoff
4121 field.
4122 "d_tm_tm_zone"
4124 From i_time.U:
4125 This variable conditionally defines "HAS_TM_TM_ZONE", which
4127 indicates to the C program that the struct tm has the tm_zone
4128 field.
4129 "d_tmpnam_r"
4131 From d_tmpnam_r.U:
4132 This variable conditionally defines the "HAS_TMPNAM_R" symbol,
4134 which indicates to the C program that the tmpnam_r() routine is
4135 available.
4136 "d_towlower"
4138 From d_towlower.U:
4139 This variable conditionally defines the "HAS_TOWLOWER" symbol,
4141 which indicates to the C program that the towlower() routine is
4142 available.
4143 "d_towupper"
4145 From d_towupper.U:
4146 This variable conditionally defines the "HAS_TOWUPPER" symbol,
4148 which indicates to the C program that the towupper() routine is
4149 available.
4150 "d_trunc"
4152 From d_trunc.U:
4153 This variable conditionally defines the "HAS_TRUNC" symbol, which
4155 indicates to the C program that the trunc() routine is available to
4156 round doubles towards zero.
4157 "d_truncate"
4159 From d_truncate.U:
4160 This variable conditionally defines "HAS_TRUNCATE" if truncate() is
4162 available to truncate files.
4163 "d_truncl"
4165 From d_truncl.U:
4166 This variable conditionally defines the "HAS_TRUNCL" symbol, which
4168 indicates to the C program that the truncl() routine is available
4169 to round long doubles towards zero. If copysignl is also present,
4170 we can emulate modfl.
4171 "d_ttyname_r"
4173 From d_ttyname_r.U:
4174 This variable conditionally defines the "HAS_TTYNAME_R" symbol,
4176 which indicates to the C program that the ttyname_r() routine is
4177 available.
4178 "d_tzname"
4180 From d_tzname.U:
4181 This variable conditionally defines "HAS_TZNAME" if tzname[] is
4183 available to access timezone names.
4184 "d_u32align"
4186 From d_u32align.U:
4187 This variable tells whether you must access character data through
4189 U32-aligned pointers.
4190 "d_ualarm"
4192 From d_ualarm.U:
4193 This variable conditionally defines the "HAS_UALARM" symbol, which
4195 indicates to the C program that the ualarm() routine is available.
4196 "d_umask"
4198 From d_umask.U:
4199 This variable conditionally defines the "HAS_UMASK" symbol, which
4201 indicates to the C program that the umask() routine is available.
4202 to set and get the value of the file creation mask.
4203 "d_uname"
4205 From d_gethname.U:
4206 This variable conditionally defines the "HAS_UNAME" symbol, which
4208 indicates to the C program that the uname() routine may be used to
4209 derive the host name.
4210 "d_union_semun"
4212 From d_union_semun.U:
4213 This variable conditionally defines "HAS_UNION_SEMUN" if the union
4215 semun is defined by including <sys/sem.h>.
4216 "d_unlinkat"
4218 From d_fsat.U:
4219 This variable conditionally defines the "HAS_UNLINKAT" symbol,
4221 which indicates the "POSIX" unlinkat() function isavailable.
4222 "d_unordered"
4224 From d_unordered.U:
4225 This variable conditionally defines the "HAS_UNORDERED" symbol,
4227 which indicates to the C program that the unordered() routine is
4228 available.
4229 "d_unsetenv"
4231 From d_unsetenv.U:
4232 This variable conditionally defines the "HAS_UNSETENV" symbol,
4234 which indicates to the C program that the unsetenv () routine is
4235 available.
4236 "d_uselocale"
4238 From d_newlocale.U:
4239 This variable conditionally defines the "HAS_USELOCALE" symbol,
4241 which indicates to the C program that the uselocale() routine is
4242 available to set the current locale for the calling thread.
4243 "d_usleep"
4245 From d_usleep.U:
4246 This variable conditionally defines "HAS_USLEEP" if usleep() is
4248 available to do high granularity sleeps.
4249 "d_usleepproto"
4251 From d_usleepproto.U:
4252 This variable conditionally defines the "HAS_USLEEP_PROTO" symbol,
4254 which indicates to the C program that the system provides a
4255 prototype for the usleep() function. Otherwise, it is up to the
4256 program to supply one.
4257 "d_ustat"
4259 From d_ustat.U:
4260 This variable conditionally defines "HAS_USTAT" if ustat() is
4262 available to query file system statistics by dev_t.
4263 "d_vendorarch"
4265 From vendorarch.U:
4266 This variable conditionally defined "PERL_VENDORARCH".
4268 "d_vendorbin"
4270 From vendorbin.U:
4271 This variable conditionally defines "PERL_VENDORBIN".
4273 "d_vendorlib"
4275 From vendorlib.U:
4276 This variable conditionally defines "PERL_VENDORLIB".
4278 "d_vendorscript"
4280 From vendorscript.U:
4281 This variable conditionally defines "PERL_VENDORSCRIPT".
4283 "d_vfork"
4285 From d_vfork.U:
4286 This variable conditionally defines the "HAS_VFORK" symbol, which
4288 indicates the vfork() routine is available.
4289 "d_void_closedir"
4291 From d_closedir.U:
4292 This variable conditionally defines "VOID_CLOSEDIR" if closedir()
4294 does not return a value.
4295 "d_voidsig"
4297 From d_voidsig.U:
4298 This variable conditionally defines "VOIDSIG" if this system
4300 declares "void (*signal(...))()" in signal.h. The old way was to
4301 declare it as "int (*signal(...))()".
4302 "d_voidtty"
4304 From i_sysioctl.U:
4305 This variable conditionally defines "USE_IOCNOTTY" to indicate that
4307 the ioctl() call with "TIOCNOTTY" should be used to void tty
4308 association. Otherwise (on "USG" probably), it is enough to close
4309 the standard file descriptors and do a setpgrp().
4310 "d_vsnprintf"
4312 From d_snprintf.U:
4313 This variable conditionally defines the "HAS_VSNPRINTF" symbol,
4315 which indicates to the C program that the vsnprintf () library
4316 function is available.
4317 "d_wait4"
4319 From d_wait4.U:
4320 This variable conditionally defines the HAS_WAIT4 symbol, which
4322 indicates the wait4() routine is available.
4323 "d_waitpid"
4325 From d_waitpid.U:
4326 This variable conditionally defines "HAS_WAITPID" if waitpid() is
4328 available to wait for child process.
4329 "d_wcscmp"
4331 From d_wcscmp.U:
4332 This variable conditionally defines the "HAS_WCSCMP" symbol if the
4334 wcscmp() routine is available and can be used to compare wide
4335 character strings.
4336 "d_wcstombs"
4338 From d_wcstombs.U:
4339 This variable conditionally defines the "HAS_WCSTOMBS" symbol,
4341 which indicates to the C program that the wcstombs() routine is
4342 available to convert wide character strings to multibyte strings.
4343 "d_wcsxfrm"
4345 From d_wcsxfrm.U:
4346 This variable conditionally defines the "HAS_WCSXFRM" symbol if the
4348 wcsxfrm() routine is available and can be used to compare wide
4349 character strings.
4350 "d_wctomb"
4352 From d_wctomb.U:
4353 This variable conditionally defines the "HAS_WCTOMB" symbol, which
4355 indicates to the C program that the wctomb() routine is available
4356 to convert a wide character to a multibyte.
4357 "d_writev"
4359 From d_writev.U:
4360 This variable conditionally defines the "HAS_WRITEV" symbol, which
4362 indicates to the C program that the writev() routine is available.
4363 "d_xenix"
4365 From Guess.U:
4366 This variable conditionally defines the symbol "XENIX", which
4368 alerts the C program that it runs under Xenix.
4369 "date"
4371 From Loc.U:
4372 This variable is used internally by Configure to determine the full
4374 pathname (if any) of the date program. After Configure runs, the
4375 value is reset to a plain "date" and is not useful.
4376 "db_hashtype"
4378 From i_db.U:
4379 This variable contains the type of the hash structure element in
4381 the <db.h> header file. In older versions of "DB", it was int,
4382 while in newer ones it is u_int32_t.
4383 "db_prefixtype"
4385 From i_db.U:
4386 This variable contains the type of the prefix structure element in
4388 the <db.h> header file. In older versions of "DB", it was int,
4389 while in newer ones it is size_t.
4390 "db_version_major"
4392 From i_db.U:
4393 This variable contains the major version number of Berkeley "DB"
4395 found in the <db.h> header file.
4396 "db_version_minor"
4398 From i_db.U:
4399 This variable contains the minor version number of Berkeley "DB"
4401 found in the <db.h> header file. For "DB" version 1 this is always
4402 0.
4403 "db_version_patch"
4405 From i_db.U:
4406 This variable contains the patch version number of Berkeley "DB"
4408 found in the <db.h> header file. For "DB" version 1 this is always
4409 0.
4410 "default_inc_excludes_dot"
4412 From defaultincdot.U:
4413 When defined, remove the legacy . from @"INC"
4415 "direntrytype"
4417 From i_dirent.U:
4418 This symbol is set to "struct direct" or "struct dirent" depending
4420 on whether dirent is available or not. You should use this pseudo
4421 type to portably declare your directory entries.
4422 "dlext"
4424 From dlext.U:
4425 This variable contains the extension that is to be used for the
4427 dynamically loaded modules that perl generates.
4428 "dlsrc"
4430 From dlsrc.U:
4431 This variable contains the name of the dynamic loading file that
4433 will be used with the package.
4434 "doubleinfbytes"
4436 From infnan.U:
4437 This variable contains comma-separated list of hexadecimal bytes
4439 for the double precision infinity.
4440 "doublekind"
4442 From longdblfio.U:
4443 This variable, if defined, encodes the type of a double: 1 = "IEEE"
4445 754 32-bit little endian, 2 = "IEEE" 754 32-bit big endian, 3 =
4446 "IEEE" 754 64-bit little endian, 4 = "IEEE" 754 64-bit big endian,
4447 5 = "IEEE" 754 128-bit little endian, 6 = "IEEE" 754 128-bit big
4448 endian, 7 = "IEEE" 754 64-bit mixed endian le-be, 8 = "IEEE" 754
4449 64-bit mixed endian be-le, 9 = "VAX" 32bit little endian F float
4450 format 10 = "VAX" 64bit little endian D float format 11 = "VAX"
4451 64bit little endian G float format 12 = "IBM" 32bit format 13 =
4452 "IBM" 64bit format 14 = Cray 64bit format -1 = unknown format.
4453 "doublemantbits"
4455 From mantbits.U:
4456 This symbol, if defined, tells how many mantissa bits there are in
4458 double precision floating point format. Note that this is usually
4459 "DBL_MANT_DIG" minus one, since with the standard "IEEE" 754
4460 formats "DBL_MANT_DIG" includes the implicit bit which doesn't
4461 really exist.
4462 "doublenanbytes"
4464 From infnan.U:
4465 This variable contains comma-separated list of hexadecimal bytes
4467 for the double precision not-a-number.
4468 "doublesize"
4470 From doublesize.U:
4471 This variable contains the value of the "DOUBLESIZE" symbol, which
4473 indicates to the C program how many bytes there are in a double.
4474 "drand01"
4476 From randfunc.U:
4477 Indicates the macro to be used to generate normalized random
4479 numbers. Uses randfunc, often divided by (double) (((unsigned
4480 long) 1 << randbits)) in order to normalize the result. In C
4481 programs, the macro "Drand01" is mapped to drand01.
4482 "drand48_r_proto"
4484 From d_drand48_r.U:
4485 This variable encodes the prototype of drand48_r. It is zero if
4487 d_drand48_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
4488 of reentr.h if d_drand48_r is defined.
4489 "dtrace"
4491 From usedtrace.U:
4492 This variable holds the location of the dtrace executable.
4494 "dtraceobject"
4496 From dtraceobject.U:
4497 Whether we need to build an object file with the dtrace tool.
4499 "dtracexnolibs"
4501 From dtraceobject.U:
4502 Whether dtrace accepts -xnolibs. If available we call dtrace -h
4504 and dtrace -G with -xnolibs to allow dtrace to run in a jail on
4505 FreeBSD.
4506 "dynamic_ext"
4508 From Extensions.U:
4509 This variable holds a list of "XS" extension files we want to link
4511 dynamically into the package. It is used by Makefile.
4512 e
4514 "eagain"
4515 From nblock_io.U:
4516 This variable bears the symbolic errno code set by read() when no
4518 data is present on the file and non-blocking I/O was enabled
4519 (otherwise, read() blocks naturally).
4520 "ebcdic"
4522 From ebcdic.U:
4523 This variable conditionally defines "EBCDIC" if this system uses
4525 "EBCDIC" encoding.
4526 "echo"
4528 From Loc.U:
4529 This variable is used internally by Configure to determine the full
4531 pathname (if any) of the echo program. After Configure runs, the
4532 value is reset to a plain "echo" and is not useful.
4533 "egrep"
4535 From Loc.U:
4536 This variable is used internally by Configure to determine the full
4538 pathname (if any) of the egrep program. After Configure runs, the
4539 value is reset to a plain "egrep" and is not useful.
4540 "emacs"
4542 From Loc.U:
4543 This variable is defined but not used by Configure. The value is
4545 the empty string and is not useful.
4546 "endgrent_r_proto"
4548 From d_endgrent_r.U:
4549 This variable encodes the prototype of endgrent_r. It is zero if
4551 d_endgrent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4552 macros of reentr.h if d_endgrent_r is defined.
4553 "endhostent_r_proto"
4555 From d_endhostent_r.U:
4556 This variable encodes the prototype of endhostent_r. It is zero if
4558 d_endhostent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4559 macros of reentr.h if d_endhostent_r is defined.
4560 "endnetent_r_proto"
4562 From d_endnetent_r.U:
4563 This variable encodes the prototype of endnetent_r. It is zero if
4565 d_endnetent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4566 macros of reentr.h if d_endnetent_r is defined.
4567 "endprotoent_r_proto"
4569 From d_endprotoent_r.U:
4570 This variable encodes the prototype of endprotoent_r. It is zero
4572 if d_endprotoent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4573 macros of reentr.h if d_endprotoent_r is defined.
4574 "endpwent_r_proto"
4576 From d_endpwent_r.U:
4577 This variable encodes the prototype of endpwent_r. It is zero if
4579 d_endpwent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4580 macros of reentr.h if d_endpwent_r is defined.
4581 "endservent_r_proto"
4583 From d_endservent_r.U:
4584 This variable encodes the prototype of endservent_r. It is zero if
4586 d_endservent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4587 macros of reentr.h if d_endservent_r is defined.
4588 "eunicefix"
4590 From Init.U:
4591 When running under Eunice this variable contains a command which
4593 will convert a shell script to the proper form of text file for it
4594 to be executable by the shell. On other systems it is a no-op.
4595 "exe_ext"
4597 From Unix.U:
4598 This is an old synonym for _exe.
4600 "expr"
4602 From Loc.U:
4603 This variable is used internally by Configure to determine the full
4605 pathname (if any) of the expr program. After Configure runs, the
4606 value is reset to a plain "expr" and is not useful.
4607 "extensions"
4609 From Extensions.U:
4610 This variable holds a list of all extension files (both "XS" and
4612 non-xs) installed with the package. It is propagated to Config.pm
4613 and is typically used to test whether a particular extension is
4614 available.
4615 "extern_C"
4617 From Csym.U:
4618 "ANSI" C requires "extern" where C++ requires 'extern "C"'. This
4620 variable can be used in Configure to do the right thing.
4621 "extras"
4623 From Extras.U:
4624 This variable holds a list of extra modules to install.
4626 f
4628 "fflushall"
4629 From fflushall.U:
4630 This symbol, if defined, tells that to flush all pending stdio
4632 output one must loop through all the stdio file handles stored in
4633 an array and fflush them. Note that if fflushNULL is defined,
4634 fflushall will not even be probed for and will be left undefined.
4635 "fflushNULL"
4637 From fflushall.U:
4638 This symbol, if defined, tells that fflush("NULL") correctly
4640 flushes all pending stdio output without side effects. In
4641 particular, on some platforms calling fflush("NULL") *still*
4642 corrupts "STDIN" if it is a pipe.
4643 "find"
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 "firstmakefile"
4651 From Unix.U:
4652 This variable defines the first file searched by make. On unix, it
4654 is makefile (then Makefile). On case-insensitive systems, it might
4655 be something else. This is only used to deal with convoluted make
4656 depend tricks.
4657 "flex"
4659 From Loc.U:
4660 This variable is defined but not used by Configure. The value is
4662 the empty string and is not useful.
4663 "fpossize"
4665 From fpossize.U:
4666 This variable contains the size of a fpostype in bytes.
4668 "fpostype"
4670 From fpostype.U:
4671 This variable defines Fpos_t to be something like fpos_t, long,
4673 uint, or whatever type is used to declare file positions in libc.
4674 "freetype"
4676 From mallocsrc.U:
4677 This variable contains the return type of free(). It is usually
4679 void, but occasionally int.
4680 "from"
4682 From Cross.U:
4683 This variable contains the command used by Configure to copy files
4685 from the target host. Useful and available only during Perl build.
4686 The string ":" if not cross-compiling.
4687 "full_ar"
4689 From Loc_ar.U:
4690 This variable contains the full pathname to "ar", whether or not
4692 the user has specified "portability". This is only used in the
4693 Makefile.SH.
4694 "full_csh"
4696 From d_csh.U:
4697 This variable contains the full pathname to "csh", whether or not
4699 the user has specified "portability". This is only used in the
4700 compiled C program, and we assume that all systems which can share
4701 this executable will have the same full pathname to csh.
4702 "full_sed"
4704 From Loc_sed.U:
4705 This variable contains the full pathname to "sed", whether or not
4707 the user has specified "portability". This is only used in the
4708 compiled C program, and we assume that all systems which can share
4709 this executable will have the same full pathname to sed.
4710 g
4712 "gccansipedantic"
4713 From gccvers.U:
4714 If "GNU" cc (gcc) is used, this variable will enable (if set) the
4716 -ansi and -pedantic ccflags for building core files (through cflags
4717 script). (See Porting/pumpkin.pod for full description).
4718 "gccosandvers"
4720 From gccvers.U:
4721 If "GNU" cc (gcc) is used, this variable holds the operating system
4723 and version used to compile gcc. It is set to '' if not gcc, or if
4724 nothing useful can be parsed as the os version.
4725 "gccversion"
4727 From gccvers.U:
4728 If "GNU" cc (gcc) is used, this variable holds 1 or 2 to indicate
4730 whether the compiler is version 1 or 2. This is used in setting
4731 some of the default cflags. It is set to '' if not gcc.
4732 "getgrent_r_proto"
4734 From d_getgrent_r.U:
4735 This variable encodes the prototype of getgrent_r. It is zero if
4737 d_getgrent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4738 macros of reentr.h if d_getgrent_r is defined.
4739 "getgrgid_r_proto"
4741 From d_getgrgid_r.U:
4742 This variable encodes the prototype of getgrgid_r. It is zero if
4744 d_getgrgid_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4745 macros of reentr.h if d_getgrgid_r is defined.
4746 "getgrnam_r_proto"
4748 From d_getgrnam_r.U:
4749 This variable encodes the prototype of getgrnam_r. It is zero if
4751 d_getgrnam_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4752 macros of reentr.h if d_getgrnam_r is defined.
4753 "gethostbyaddr_r_proto"
4755 From d_gethostbyaddr_r.U:
4756 This variable encodes the prototype of gethostbyaddr_r. It is zero
4758 if d_gethostbyaddr_r is undef, and one of the
4759 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_gethostbyaddr_r is
4760 defined.
4761 "gethostbyname_r_proto"
4763 From d_gethostbyname_r.U:
4764 This variable encodes the prototype of gethostbyname_r. It is zero
4766 if d_gethostbyname_r is undef, and one of the
4767 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_gethostbyname_r is
4768 defined.
4769 "gethostent_r_proto"
4771 From d_gethostent_r.U:
4772 This variable encodes the prototype of gethostent_r. It is zero if
4774 d_gethostent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4775 macros of reentr.h if d_gethostent_r is defined.
4776 "getlogin_r_proto"
4778 From d_getlogin_r.U:
4779 This variable encodes the prototype of getlogin_r. It is zero if
4781 d_getlogin_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4782 macros of reentr.h if d_getlogin_r is defined.
4783 "getnetbyaddr_r_proto"
4785 From d_getnetbyaddr_r.U:
4786 This variable encodes the prototype of getnetbyaddr_r. It is zero
4788 if d_getnetbyaddr_r is undef, and one of the
4789 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getnetbyaddr_r is
4790 defined.
4791 "getnetbyname_r_proto"
4793 From d_getnetbyname_r.U:
4794 This variable encodes the prototype of getnetbyname_r. It is zero
4796 if d_getnetbyname_r is undef, and one of the
4797 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getnetbyname_r is
4798 defined.
4799 "getnetent_r_proto"
4801 From d_getnetent_r.U:
4802 This variable encodes the prototype of getnetent_r. It is zero if
4804 d_getnetent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4805 macros of reentr.h if d_getnetent_r is defined.
4806 "getprotobyname_r_proto"
4808 From d_getprotobyname_r.U:
4809 This variable encodes the prototype of getprotobyname_r. It is
4811 zero if d_getprotobyname_r is undef, and one of the
4812 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getprotobyname_r is
4813 defined.
4814 "getprotobynumber_r_proto"
4816 From d_getprotobynumber_r.U:
4817 This variable encodes the prototype of getprotobynumber_r. It is
4819 zero if d_getprotobynumber_r is undef, and one of the
4820 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getprotobynumber_r
4821 is defined.
4822 "getprotoent_r_proto"
4824 From d_getprotoent_r.U:
4825 This variable encodes the prototype of getprotoent_r. It is zero
4827 if d_getprotoent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4828 macros of reentr.h if d_getprotoent_r is defined.
4829 "getpwent_r_proto"
4831 From d_getpwent_r.U:
4832 This variable encodes the prototype of getpwent_r. It is zero if
4834 d_getpwent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4835 macros of reentr.h if d_getpwent_r is defined.
4836 "getpwnam_r_proto"
4838 From d_getpwnam_r.U:
4839 This variable encodes the prototype of getpwnam_r. It is zero if
4841 d_getpwnam_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4842 macros of reentr.h if d_getpwnam_r is defined.
4843 "getpwuid_r_proto"
4845 From d_getpwuid_r.U:
4846 This variable encodes the prototype of getpwuid_r. It is zero if
4848 d_getpwuid_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4849 macros of reentr.h if d_getpwuid_r is defined.
4850 "getservbyname_r_proto"
4852 From d_getservbyname_r.U:
4853 This variable encodes the prototype of getservbyname_r. It is zero
4855 if d_getservbyname_r is undef, and one of the
4856 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getservbyname_r is
4857 defined.
4858 "getservbyport_r_proto"
4860 From d_getservbyport_r.U:
4861 This variable encodes the prototype of getservbyport_r. It is zero
4863 if d_getservbyport_r is undef, and one of the
4864 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getservbyport_r is
4865 defined.
4866 "getservent_r_proto"
4868 From d_getservent_r.U:
4869 This variable encodes the prototype of getservent_r. It is zero if
4871 d_getservent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4872 macros of reentr.h if d_getservent_r is defined.
4873 "getspnam_r_proto"
4875 From d_getspnam_r.U:
4876 This variable encodes the prototype of getspnam_r. It is zero if
4878 d_getspnam_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4879 macros of reentr.h if d_getspnam_r is defined.
4880 "gidformat"
4882 From gidf.U:
4883 This variable contains the format string used for printing a Gid_t.
4885 "gidsign"
4887 From gidsign.U:
4888 This variable contains the signedness of a gidtype. 1 for
4890 unsigned, -1 for signed.
4891 "gidsize"
4893 From gidsize.U:
4894 This variable contains the size of a gidtype in bytes.
4896 "gidtype"
4898 From gidtype.U:
4899 This variable defines Gid_t to be something like gid_t, int,
4901 ushort, or whatever type is used to declare the return type of
4902 getgid(). Typically, it is the type of group ids in the kernel.
4903 "glibpth"
4905 From libpth.U:
4906 This variable holds the general path (space-separated) used to find
4908 libraries. It may contain directories that do not exist on this
4909 platform, libpth is the cleaned-up version.
4910 "gmake"
4912 From Loc.U:
4913 This variable is used internally by Configure to determine the full
4915 pathname (if any) of the gmake program. After Configure runs, the
4916 value is reset to a plain "gmake" and is not useful.
4917 "gmtime_r_proto"
4919 From d_gmtime_r.U:
4920 This variable encodes the prototype of gmtime_r. It is zero if
4922 d_gmtime_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
4923 of reentr.h if d_gmtime_r is defined.
4924 "gnulibc_version"
4926 From d_gnulibc.U:
4927 This variable contains the version number of the "GNU" C library.
4929 It is usually something like 2.2.5. It is a plain '' if this is
4930 not the "GNU" C library, or if the version is unknown.
4931 "grep"
4933 From Loc.U:
4934 This variable is used internally by Configure to determine the full
4936 pathname (if any) of the grep program. After Configure runs, the
4937 value is reset to a plain "grep" and is not useful.
4938 "groupcat"
4940 From nis.U:
4941 This variable contains a command that produces the text of the
4943 /etc/group file. This is normally "cat /etc/group", but can be
4944 "ypcat group" when "NIS" is used. On some systems, such as os390,
4945 there may be no equivalent command, in which case this variable is
4946 unset.
4947 "groupstype"
4949 From groupstype.U:
4950 This variable defines Groups_t to be something like gid_t, int,
4952 ushort, or whatever type is used for the second argument to
4953 getgroups() and setgroups(). Usually, this is the same as gidtype
4954 (gid_t), but sometimes it isn't.
4955 "gzip"
4957 From Loc.U:
4958 This variable is used internally by Configure to determine the full
4960 pathname (if any) of the gzip program. After Configure runs, the
4961 value is reset to a plain "gzip" and is not useful.
4962 h
4964 "h_fcntl"
4965 From h_fcntl.U:
4966 This is variable gets set in various places to tell i_fcntl that
4968 <fcntl.h> should be included.
4969 "h_sysfile"
4971 From h_sysfile.U:
4972 This is variable gets set in various places to tell i_sys_file that
4974 <sys/file.h> should be included.
4975 "hint"
4977 From Oldconfig.U:
4978 Gives the type of hints used for previous answers. May be one of
4980 "default", "recommended" or "previous".
4981 "hostcat"
4983 From nis.U:
4984 This variable contains a command that produces the text of the
4986 /etc/hosts file. This is normally "cat /etc/hosts", but can be
4987 "ypcat hosts" when "NIS" is used. On some systems, such as os390,
4988 there may be no equivalent command, in which case this variable is
4989 unset.
4990 "hostgenerate"
4992 From Cross.U:
4993 This variable contains the path to a generate_uudmap binary that
4995 can be run on the host "OS" when cross-compiling. Useful and
4996 available only during Perl build. Empty string '' if not cross-
4997 compiling.
4998 "hostosname"
5000 From Cross.U:
5001 This variable contains the original value of $^O for hostperl when
5003 cross-compiling. This is useful to pick the proper tools when
5004 running build code in the host. Empty string '' if not cross-
5005 compiling.
5006 "hostperl"
5008 From Cross.U:
5009 This variable contains the path to a miniperl binary that can be
5011 run on the host "OS" when cross-compiling. Useful and available
5012 only during Perl build. Empty string '' if not cross-compiling.
5013 "html1dir"
5015 From html1dir.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 whole programs, not libraries or modules. It is intended
5020 to correspond roughly to section 1 of the Unix manuals.
5021 "html1direxp"
5023 From html1dir.U:
5024 This variable is the same as the html1dir variable, but is filename
5026 expanded at configuration time, for convenient use in makefiles.
5027 "html3dir"
5029 From html3dir.U:
5030 This variable contains the name of the directory in which html
5032 source pages are to be put. This directory is for pages that
5033 describe libraries or modules. It is intended to correspond
5034 roughly to section 3 of the Unix manuals.
5035 "html3direxp"
5037 From html3dir.U:
5038 This variable is the same as the html3dir variable, but is filename
5040 expanded at configuration time, for convenient use in makefiles.
5041 i
5043 "i16size"
5044 From perlxv.U:
5045 This variable is the size of an I16 in bytes.
5047 "i16type"
5049 From perlxv.U:
5050 This variable contains the C type used for Perl's I16.
5052 "i32size"
5054 From perlxv.U:
5055 This variable is the size of an I32 in bytes.
5057 "i32type"
5059 From perlxv.U:
5060 This variable contains the C type used for Perl's I32.
5062 "i64size"
5064 From perlxv.U:
5065 This variable is the size of an I64 in bytes.
5067 "i64type"
5069 From perlxv.U:
5070 This variable contains the C type used for Perl's I64.
5072 "i8size"
5074 From perlxv.U:
5075 This variable is the size of an I8 in bytes.
5077 "i8type"
5079 From perlxv.U:
5080 This variable contains the C type used for Perl's I8.
5082 "i_arpainet"
5084 From i_arpainet.U:
5085 This variable conditionally defines the "I_ARPA_INET" symbol, and
5087 indicates whether a C program should include <arpa/inet.h>.
5088 "i_bfd"
5090 From i_bfd.U:
5091 This variable conditionally defines the "I_BFD" symbol, and
5093 indicates whether a C program can include <bfd.h>.
5094 "i_bsdioctl"
5096 From i_sysioctl.U:
5097 This variable conditionally defines the "I_SYS_BSDIOCTL" symbol,
5099 which indicates to the C program that <sys/bsdioctl.h> exists and
5100 should be included.
5101 "i_crypt"
5103 From i_crypt.U:
5104 This variable conditionally defines the "I_CRYPT" symbol, and
5106 indicates whether a C program should include <crypt.h>.
5107 "i_db"
5109 From i_db.U:
5110 This variable conditionally defines the "I_DB" symbol, and
5112 indicates whether a C program may include Berkeley's "DB" include
5113 file <db.h>.
5114 "i_dbm"
5116 From i_dbm.U:
5117 This variable conditionally defines the "I_DBM" symbol, which
5119 indicates to the C program that <dbm.h> exists and should be
5120 included.
5121 "i_dirent"
5123 From i_dirent.U:
5124 This variable conditionally defines "I_DIRENT", which indicates to
5126 the C program that it should include <dirent.h>.
5127 "i_dlfcn"
5129 From i_dlfcn.U:
5130 This variable conditionally defines the "I_DLFCN" symbol, which
5132 indicates to the C program that <dlfcn.h> exists and should be
5133 included.
5134 "i_execinfo"
5136 From i_execinfo.U:
5137 This variable conditionally defines the "I_EXECINFO" symbol, and
5139 indicates whether a C program may include <execinfo.h>, for
5140 backtrace() support.
5141 "i_fcntl"
5143 From i_fcntl.U:
5144 This variable controls the value of "I_FCNTL" (which tells the C
5146 program to include <fcntl.h>).
5147 "i_fenv"
5149 From i_fenv.U:
5150 This variable conditionally defines the "I_FENV" symbol, which
5152 indicates to the C program that <fenv.h> exists and should be
5153 included.
5154 "i_fp"
5156 From i_fp.U:
5157 This variable conditionally defines the "I_FP" symbol, and
5159 indicates whether a C program should include <fp.h>.
5160 "i_fp_class"
5162 From i_fp_class.U:
5163 This variable conditionally defines the "I_FP_CLASS" symbol, and
5165 indicates whether a C program should include <fp_class.h>.
5166 "i_gdbm"
5168 From i_gdbm.U:
5169 This variable conditionally defines the "I_GDBM" symbol, which
5171 indicates to the C program that <gdbm.h> exists and should be
5172 included.
5173 "i_gdbm_ndbm"
5175 From i_ndbm.U:
5176 This variable conditionally defines the "I_GDBM_NDBM" symbol, which
5178 indicates to the C program that <gdbm-ndbm.h> exists and should be
5179 included. This is the location of the ndbm.h compatibility file in
5180 Debian 4.0.
5181 "i_gdbmndbm"
5183 From i_ndbm.U:
5184 This variable conditionally defines the "I_GDBMNDBM" symbol, which
5186 indicates to the C program that <gdbm/ndbm.h> exists and should be
5187 included. This was the location of the ndbm.h compatibility file
5188 in RedHat 7.1.
5189 "i_grp"
5191 From i_grp.U:
5192 This variable conditionally defines the "I_GRP" symbol, and
5194 indicates whether a C program should include <grp.h>.
5195 "i_ieeefp"
5197 From i_ieeefp.U:
5198 This variable conditionally defines the "I_IEEEFP" symbol, and
5200 indicates whether a C program should include <ieeefp.h>.
5201 "i_inttypes"
5203 From i_inttypes.U:
5204 This variable conditionally defines the "I_INTTYPES" symbol, and
5206 indicates whether a C program should include <inttypes.h>.
5207 "i_langinfo"
5209 From i_langinfo.U:
5210 This variable conditionally defines the "I_LANGINFO" symbol, and
5212 indicates whether a C program should include <langinfo.h>.
5213 "i_libutil"
5215 From i_libutil.U:
5216 This variable conditionally defines the "I_LIBUTIL" symbol, and
5218 indicates whether a C program should include <libutil.h>.
5219 "i_locale"
5221 From i_locale.U:
5222 This variable conditionally defines the "I_LOCALE" symbol, and
5224 indicates whether a C program should include <locale.h>.
5225 "i_machcthr"
5227 From i_machcthr.U:
5228 This variable conditionally defines the "I_MACH_CTHREADS" symbol,
5230 and indicates whether a C program should include <mach/cthreads.h>.
5231 "i_malloc"
5233 From i_malloc.U:
5234 This variable conditionally defines the "I_MALLOC" symbol, and
5236 indicates whether a C program should include <malloc.h>.
5237 "i_mallocmalloc"
5239 From i_mallocmalloc.U:
5240 This variable conditionally defines the "I_MALLOCMALLOC" symbol,
5242 and indicates whether a C program should include <malloc/malloc.h>.
5243 "i_mntent"
5245 From i_mntent.U:
5246 This variable conditionally defines the "I_MNTENT" symbol, and
5248 indicates whether a C program should include <mntent.h>.
5249 "i_ndbm"
5251 From i_ndbm.U:
5252 This variable conditionally defines the "I_NDBM" symbol, which
5254 indicates to the C program that <ndbm.h> exists and should be
5255 included.
5256 "i_netdb"
5258 From i_netdb.U:
5259 This variable conditionally defines the "I_NETDB" symbol, and
5261 indicates whether a C program should include <netdb.h>.
5262 "i_neterrno"
5264 From i_neterrno.U:
5265 This variable conditionally defines the "I_NET_ERRNO" symbol, which
5267 indicates to the C program that <net/errno.h> exists and should be
5268 included.
5269 "i_netinettcp"
5271 From i_netinettcp.U:
5272 This variable conditionally defines the "I_NETINET_TCP" symbol, and
5274 indicates whether a C program should include <netinet/tcp.h>.
5275 "i_niin"
5277 From i_niin.U:
5278 This variable conditionally defines "I_NETINET_IN", which indicates
5280 to the C program that it should include <netinet/in.h>. Otherwise,
5281 you may try <sys/in.h>.
5282 "i_poll"
5284 From i_poll.U:
5285 This variable conditionally defines the "I_POLL" symbol, and
5287 indicates whether a C program should include <poll.h>.
5288 "i_prot"
5290 From i_prot.U:
5291 This variable conditionally defines the "I_PROT" symbol, and
5293 indicates whether a C program should include <prot.h>.
5294 "i_pthread"
5296 From i_pthread.U:
5297 This variable conditionally defines the "I_PTHREAD" symbol, and
5299 indicates whether a C program should include <pthread.h>.
5300 "i_pwd"
5302 From i_pwd.U:
5303 This variable conditionally defines "I_PWD", which indicates to the
5305 C program that it should include <pwd.h>.
5306 "i_quadmath"
5308 From i_quadmath.U:
5309 This variable conditionally defines "I_QUADMATH", which indicates
5311 to the C program that it should include <quadmath.h>.
5312 "i_rpcsvcdbm"
5314 From i_dbm.U:
5315 This variable conditionally defines the "I_RPCSVC_DBM" symbol,
5317 which indicates to the C program that <rpcsvc/dbm.h> exists and
5318 should be included. Some System V systems might need this instead
5319 of <dbm.h>.
5320 "i_sgtty"
5322 From i_termio.U:
5323 This variable conditionally defines the "I_SGTTY" symbol, which
5325 indicates to the C program that it should include <sgtty.h> rather
5326 than <termio.h>.
5327 "i_shadow"
5329 From i_shadow.U:
5330 This variable conditionally defines the "I_SHADOW" symbol, and
5332 indicates whether a C program should include <shadow.h>.
5333 "i_socks"
5335 From i_socks.U:
5336 This variable conditionally defines the "I_SOCKS" symbol, and
5338 indicates whether a C program should include <socks.h>.
5339 "i_stdbool"
5341 From i_stdbool.U:
5342 This variable conditionally defines the "I_STDBOOL" symbol, which
5344 indicates to the C program that <stdbool.h> exists and should be
5345 included.
5346 "i_stdint"
5348 From i_stdint.U:
5349 This variable conditionally defines the "I_STDINT" symbol, which
5351 indicates to the C program that <stdint.h> exists and should be
5352 included.
5353 "i_stdlib"
5355 From i_stdlib.U:
5356 This variable unconditionally defines the "I_STDLIB" symbol.
5358 "i_sunmath"
5360 From i_sunmath.U:
5361 This variable conditionally defines the "I_SUNMATH" symbol, and
5363 indicates whether a C program should include <sunmath.h>.
5364 "i_sysaccess"
5366 From i_sysaccess.U:
5367 This variable conditionally defines the "I_SYS_ACCESS" symbol, and
5369 indicates whether a C program should include <sys/access.h>.
5370 "i_sysdir"
5372 From i_sysdir.U:
5373 This variable conditionally defines the "I_SYS_DIR" symbol, and
5375 indicates whether a C program should include <sys/dir.h>.
5376 "i_sysfile"
5378 From i_sysfile.U:
5379 This variable conditionally defines the "I_SYS_FILE" symbol, and
5381 indicates whether a C program should include <sys/file.h> to get
5382 "R_OK" and friends.
5383 "i_sysfilio"
5385 From i_sysioctl.U:
5386 This variable conditionally defines the "I_SYS_FILIO" symbol, which
5388 indicates to the C program that <sys/filio.h> exists and should be
5389 included in preference to <sys/ioctl.h>.
5390 "i_sysin"
5392 From i_niin.U:
5393 This variable conditionally defines "I_SYS_IN", which indicates to
5395 the C program that it should include <sys/in.h> instead of
5396 <netinet/in.h>.
5397 "i_sysioctl"
5399 From i_sysioctl.U:
5400 This variable conditionally defines the "I_SYS_IOCTL" symbol, which
5402 indicates to the C program that <sys/ioctl.h> exists and should be
5403 included.
5404 "i_syslog"
5406 From i_syslog.U:
5407 This variable conditionally defines the "I_SYSLOG" symbol, and
5409 indicates whether a C program should include <syslog.h>.
5410 "i_sysmman"
5412 From i_sysmman.U:
5413 This variable conditionally defines the "I_SYS_MMAN" symbol, and
5415 indicates whether a C program should include <sys/mman.h>.
5416 "i_sysmode"
5418 From i_sysmode.U:
5419 This variable conditionally defines the "I_SYSMODE" symbol, and
5421 indicates whether a C program should include <sys/mode.h>.
5422 "i_sysmount"
5424 From i_sysmount.U:
5425 This variable conditionally defines the "I_SYSMOUNT" symbol, and
5427 indicates whether a C program should include <sys/mount.h>.
5428 "i_sysndir"
5430 From i_sysndir.U:
5431 This variable conditionally defines the "I_SYS_NDIR" symbol, and
5433 indicates whether a C program should include <sys/ndir.h>.
5434 "i_sysparam"
5436 From i_sysparam.U:
5437 This variable conditionally defines the "I_SYS_PARAM" symbol, and
5439 indicates whether a C program should include <sys/param.h>.
5440 "i_syspoll"
5442 From i_syspoll.U:
5443 This variable conditionally defines the "I_SYS_POLL" symbol, which
5445 indicates to the C program that it should include <sys/poll.h>.
5446 "i_sysresrc"
5448 From i_sysresrc.U:
5449 This variable conditionally defines the "I_SYS_RESOURCE" symbol,
5451 and indicates whether a C program should include <sys/resource.h>.
5452 "i_syssecrt"
5454 From i_syssecrt.U:
5455 This variable conditionally defines the "I_SYS_SECURITY" symbol,
5457 and indicates whether a C program should include <sys/security.h>.
5458 "i_sysselct"
5460 From i_sysselct.U:
5461 This variable conditionally defines "I_SYS_SELECT", which indicates
5463 to the C program that it should include <sys/select.h> in order to
5464 get the definition of struct timeval.
5465 "i_syssockio"
5467 From i_sysioctl.U:
5468 This variable conditionally defines "I_SYS_SOCKIO" to indicate to
5470 the C program that socket ioctl codes may be found in
5471 <sys/sockio.h> instead of <sys/ioctl.h>.
5472 "i_sysstat"
5474 From i_sysstat.U:
5475 This variable conditionally defines the "I_SYS_STAT" symbol, and
5477 indicates whether a C program should include <sys/stat.h>.
5478 "i_sysstatfs"
5480 From i_sysstatfs.U:
5481 This variable conditionally defines the "I_SYSSTATFS" symbol, and
5483 indicates whether a C program should include <sys/statfs.h>.
5484 "i_sysstatvfs"
5486 From i_sysstatvfs.U:
5487 This variable conditionally defines the "I_SYSSTATVFS" symbol, and
5489 indicates whether a C program should include <sys/statvfs.h>.
5490 "i_systime"
5492 From i_time.U:
5493 This variable conditionally defines "I_SYS_TIME", which indicates
5495 to the C program that it should include <sys/time.h>.
5496 "i_systimek"
5498 From i_time.U:
5499 This variable conditionally defines "I_SYS_TIME_KERNEL", which
5501 indicates to the C program that it should include <sys/time.h> with
5502 "KERNEL" defined.
5503 "i_systimes"
5505 From i_systimes.U:
5506 This variable conditionally defines the "I_SYS_TIMES" symbol, and
5508 indicates whether a C program should include <sys/times.h>.
5509 "i_systypes"
5511 From i_systypes.U:
5512 This variable conditionally defines the "I_SYS_TYPES" symbol, and
5514 indicates whether a C program should include <sys/types.h>.
5515 "i_sysuio"
5517 From i_sysuio.U:
5518 This variable conditionally defines the "I_SYSUIO" symbol, and
5520 indicates whether a C program should include <sys/uio.h>.
5521 "i_sysun"
5523 From i_sysun.U:
5524 This variable conditionally defines "I_SYS_UN", which indicates to
5526 the C program that it should include <sys/un.h> to get "UNIX"
5527 domain socket definitions.
5528 "i_sysutsname"
5530 From i_sysutsname.U:
5531 This variable conditionally defines the "I_SYSUTSNAME" symbol, and
5533 indicates whether a C program should include <sys/utsname.h>.
5534 "i_sysvfs"
5536 From i_sysvfs.U:
5537 This variable conditionally defines the "I_SYSVFS" symbol, and
5539 indicates whether a C program should include <sys/vfs.h>.
5540 "i_syswait"
5542 From i_syswait.U:
5543 This variable conditionally defines "I_SYS_WAIT", which indicates
5545 to the C program that it should include <sys/wait.h>.
5546 "i_termio"
5548 From i_termio.U:
5549 This variable conditionally defines the "I_TERMIO" symbol, which
5551 indicates to the C program that it should include <termio.h> rather
5552 than <sgtty.h>.
5553 "i_termios"
5555 From i_termio.U:
5556 This variable conditionally defines the "I_TERMIOS" symbol, which
5558 indicates to the C program that the "POSIX" <termios.h> file is to
5559 be included.
5560 "i_time"
5562 From i_time.U:
5563 This variable unconditionally defines "I_TIME", which indicates to
5565 the C program that it should include <time.h>.
5566 "i_unistd"
5568 From i_unistd.U:
5569 This variable conditionally defines the "I_UNISTD" symbol, and
5571 indicates whether a C program should include <unistd.h>.
5572 "i_ustat"
5574 From i_ustat.U:
5575 This variable conditionally defines the "I_USTAT" symbol, and
5577 indicates whether a C program should include <ustat.h>.
5578 "i_utime"
5580 From i_utime.U:
5581 This variable conditionally defines the "I_UTIME" symbol, and
5583 indicates whether a C program should include <utime.h>.
5584 "i_vfork"
5586 From i_vfork.U:
5587 This variable conditionally defines the "I_VFORK" symbol, and
5589 indicates whether a C program should include vfork.h.
5590 "i_wchar"
5592 From i_wchar.U:
5593 This variable conditionally defines the "I_WCHAR" symbol, that
5595 indicates whether a C program may include <wchar.h>.
5596 "i_wctype"
5598 From i_wctype.U:
5599 This variable conditionally defines the "I_WCTYPE" symbol, that
5601 indicates whether a C program may include <wctype.h>.
5602 "i_xlocale"
5604 From d_newlocale.U:
5605 This symbol, if defined, indicates to the C program that it should
5607 include <xlocale.h> to get uselocale() and its friends
5608 "ignore_versioned_solibs"
5610 From libs.U:
5611 This variable should be non-empty if non-versioned shared libraries
5613 (libfoo.so.x.y) are to be ignored (because they cannot be linked
5614 against).
5615 "inc_version_list"
5617 From inc_version_list.U:
5618 This variable specifies the list of subdirectories in over which
5620 perl.c:incpush() and lib/lib.pm will automatically search when
5621 adding directories to @"INC". The elements in the list are
5622 separated by spaces. This is only useful if you have a perl
5623 library directory tree structured like the default one. See
5624 "INSTALL" for how this works. The versioned site_perl directory
5625 was introduced in 5.005, so that is the lowest possible value.
5626 This list includes architecture-dependent directories back to
5628 version $api_versionstring (e.g. 5.5.640) and architecture-
5629 independent directories all the way back to 5.005.
5630 "inc_version_list_init"
5632 From inc_version_list.U:
5633 This variable holds the same list as inc_version_list, but each
5635 item is enclosed in double quotes and separated by commas, suitable
5636 for use in the "PERL_INC_VERSION_LIST" initialization.
5637 "incpath"
5639 From usrinc.U:
5640 This variable must precede the normal include path to get the right
5642 one, as in $incpath/usr/include or $incpath/usr/lib. Value can be
5643 "" or /bsd43 on mips.
5644 "incpth"
5646 From libpth.U:
5647 This variable must precede the normal include path to get the right
5649 one, as in $incpath/usr/include or $incpath/usr/lib. Value can be
5650 "" or /bsd43 on mips.
5651 "inews"
5653 From Loc.U:
5654 This variable is defined but not used by Configure. The value is
5656 the empty string and is not useful.
5657 "initialinstalllocation"
5659 From bin.U:
5660 When userelocatableinc is true, this variable holds the location
5662 that make install should copy the perl binary to, with all the run-
5663 time relocatable paths calculated from this at install time. When
5664 used, it is initialized to the original value of binexp, and then
5665 binexp is set to .../, as the other binaries are found relative to
5666 the perl binary.
5667 "installarchlib"
5669 From archlib.U:
5670 This variable is really the same as archlibexp but may differ on
5672 those systems using "AFS". For extra portability, only this
5673 variable should be used in makefiles.
5674 "installbin"
5676 From bin.U:
5677 This variable is the same as binexp unless "AFS" is running in
5679 which case the user is explicitly prompted for it. This variable
5680 should always be used in your makefiles for maximum portability.
5681 "installhtml1dir"
5683 From html1dir.U:
5684 This variable is really the same as html1direxp, unless you are
5686 using a different installprefix. For extra portability, you should
5687 only use this variable within your makefiles.
5688 "installhtml3dir"
5690 From html3dir.U:
5691 This variable is really the same as html3direxp, unless you are
5693 using a different installprefix. For extra portability, you should
5694 only use this variable within your makefiles.
5695 "installman1dir"
5697 From man1dir.U:
5698 This variable is really the same as man1direxp, unless you are
5700 using "AFS" in which case it points to the read/write location
5701 whereas man1direxp only points to the read-only access location.
5702 For extra portability, you should only use this variable within
5703 your makefiles.
5704 "installman3dir"
5706 From man3dir.U:
5707 This variable is really the same as man3direxp, unless you are
5709 using "AFS" in which case it points to the read/write location
5710 whereas man3direxp only points to the read-only access location.
5711 For extra portability, you should only use this variable within
5712 your makefiles.
5713 "installprefix"
5715 From installprefix.U:
5716 This variable holds the name of the directory below which "make
5718 install" will install the package. For most users, this is the
5719 same as prefix. However, it is useful for installing the software
5720 into a different (usually temporary) location after which it can be
5721 bundled up and moved somehow to the final location specified by
5722 prefix.
5723 "installprefixexp"
5725 From installprefix.U:
5726 This variable holds the full absolute path of installprefix with
5728 all ~-expansion done.
5729 "installprivlib"
5731 From privlib.U:
5732 This variable is really the same as privlibexp but may differ on
5734 those systems using "AFS". For extra portability, only this
5735 variable should be used in makefiles.
5736 "installscript"
5738 From scriptdir.U:
5739 This variable is usually the same as scriptdirexp, unless you are
5741 on a system running "AFS", in which case they may differ slightly.
5742 You should always use this variable within your makefiles for
5743 portability.
5744 "installsitearch"
5746 From sitearch.U:
5747 This variable is really the same as sitearchexp but may differ on
5749 those systems using "AFS". For extra portability, only this
5750 variable should be used in makefiles.
5751 "installsitebin"
5753 From sitebin.U:
5754 This variable is usually the same as sitebinexp, unless you are on
5756 a system running "AFS", in which case they may differ slightly. You
5757 should always use this variable within your makefiles for
5758 portability.
5759 "installsitehtml1dir"
5761 From sitehtml1dir.U:
5762 This variable is really the same as sitehtml1direxp, unless you are
5764 using "AFS" in which case it points to the read/write location
5765 whereas html1direxp only points to the read-only access location.
5766 For extra portability, you should only use this variable within
5767 your makefiles.
5768 "installsitehtml3dir"
5770 From sitehtml3dir.U:
5771 This variable is really the same as sitehtml3direxp, unless you are
5773 using "AFS" in which case it points to the read/write location
5774 whereas html3direxp only points to the read-only access location.
5775 For extra portability, you should only use this variable within
5776 your makefiles.
5777 "installsitelib"
5779 From sitelib.U:
5780 This variable is really the same as sitelibexp but may differ on
5782 those systems using "AFS". For extra portability, only this
5783 variable should be used in makefiles.
5784 "installsiteman1dir"
5786 From siteman1dir.U:
5787 This variable is really the same as siteman1direxp, unless you are
5789 using "AFS" in which case it points to the read/write location
5790 whereas man1direxp only points to the read-only access location.
5791 For extra portability, you should only use this variable within
5792 your makefiles.
5793 "installsiteman3dir"
5795 From siteman3dir.U:
5796 This variable is really the same as siteman3direxp, unless you are
5798 using "AFS" in which case it points to the read/write location
5799 whereas man3direxp only points to the read-only access location.
5800 For extra portability, you should only use this variable within
5801 your makefiles.
5802 "installsitescript"
5804 From sitescript.U:
5805 This variable is usually the same as sitescriptexp, unless you are
5807 on a system running "AFS", in which case they may differ slightly.
5808 You should always use this variable within your makefiles for
5809 portability.
5810 "installstyle"
5812 From installstyle.U:
5813 This variable describes the "style" of the perl installation. This
5815 is intended to be useful for tools that need to manipulate entire
5816 perl distributions. Perl itself doesn't use this to find its
5817 libraries -- the library directories are stored directly in
5818 Config.pm. Currently, there are only two styles: "lib" and
5819 lib/perl5. The default library locations (e.g. privlib, sitelib)
5820 are either $prefix/lib or $prefix/lib/perl5. The former is useful
5821 if $prefix is a directory dedicated to perl (e.g. /opt/perl), while
5822 the latter is useful if $prefix is shared by many packages, e.g. if
5823 $prefix=/usr/local.
5824 Unfortunately, while this "style" variable is used to set defaults
5826 for all three directory hierarchies (core, vendor, and site), there
5827 is no guarantee that the same style is actually appropriate for all
5828 those directories. For example, $prefix might be /opt/perl, but
5829 $siteprefix might be /usr/local. (Perhaps, in retrospect, the
5830 "lib" style should never have been supported, but it did seem like
5831 a nice idea at the time.)
5832 The situation is even less clear for tools such as MakeMaker that
5834 can be used to install additional modules into non-standard places.
5835 For example, if a user intends to install a module into a private
5836 directory (perhaps by setting "PREFIX" on the Makefile.PL command
5837 line), then there is no reason to assume that the Configure-time
5838 $installstyle setting will be relevant for that "PREFIX".
5839 This may later be extended to include other information, so be
5841 careful with pattern-matching on the results.
5842 For compatibility with perl5.005 and earlier, the default setting
5844 is based on whether or not $prefix contains the string "perl".
5845 "installusrbinperl"
5847 From instubperl.U:
5848 This variable tells whether Perl should be installed also as
5850 /usr/bin/perl in addition to $installbin/perl
5851 "installvendorarch"
5853 From vendorarch.U:
5854 This variable is really the same as vendorarchexp but may differ on
5856 those systems using "AFS". For extra portability, only this
5857 variable should be used in makefiles.
5858 "installvendorbin"
5860 From vendorbin.U:
5861 This variable is really the same as vendorbinexp but may differ on
5863 those systems using "AFS". For extra portability, only this
5864 variable should be used in makefiles.
5865 "installvendorhtml1dir"
5867 From vendorhtml1dir.U:
5868 This variable is really the same as vendorhtml1direxp but may
5870 differ on those systems using "AFS". For extra portability, only
5871 this variable should be used in makefiles.
5872 "installvendorhtml3dir"
5874 From vendorhtml3dir.U:
5875 This variable is really the same as vendorhtml3direxp but may
5877 differ on those systems using "AFS". For extra portability, only
5878 this variable should be used in makefiles.
5879 "installvendorlib"
5881 From vendorlib.U:
5882 This variable is really the same as vendorlibexp but may differ on
5884 those systems using "AFS". For extra portability, only this
5885 variable should be used in makefiles.
5886 "installvendorman1dir"
5888 From vendorman1dir.U:
5889 This variable is really the same as vendorman1direxp but may differ
5891 on those systems using "AFS". For extra portability, only this
5892 variable should be used in makefiles.
5893 "installvendorman3dir"
5895 From vendorman3dir.U:
5896 This variable is really the same as vendorman3direxp but may differ
5898 on those systems using "AFS". For extra portability, only this
5899 variable should be used in makefiles.
5900 "installvendorscript"
5902 From vendorscript.U:
5903 This variable is really the same as vendorscriptexp but may differ
5905 on those systems using "AFS". For extra portability, only this
5906 variable should be used in makefiles.
5907 "intsize"
5909 From intsize.U:
5910 This variable contains the value of the "INTSIZE" symbol, which
5912 indicates to the C program how many bytes there are in an int.
5913 "issymlink"
5915 From issymlink.U:
5916 This variable holds the test command to test for a symbolic link
5918 (if they are supported). Typical values include "test -h" and
5919 "test -L".
5920 "ivdformat"
5922 From perlxvf.U:
5923 This variable contains the format string used for printing a Perl
5925 "IV" as a signed decimal integer.
5926 "ivsize"
5928 From perlxv.U:
5929 This variable is the size of an "IV" in bytes.
5931 "ivtype"
5933 From perlxv.U:
5934 This variable contains the C type used for Perl's "IV".
5936 k
5938 "known_extensions"
5939 From Extensions.U:
5940 This variable holds a list of all extensions (both "XS" and non-xs)
5942 included in the package source distribution. This information is
5943 only really of use during the Perl build, as the list makes no
5944 distinction between extensions which were build and installed, and
5945 those which where not. See "extensions" for the list of extensions
5946 actually built and available.
5947 "ksh"
5949 From Loc.U:
5950 This variable is defined but not used by Configure. The value is
5952 the empty string and is not useful.
5953 l
5955 "ld"
5956 From dlsrc.U:
5957 This variable indicates the program to be used to link libraries
5959 for dynamic loading. On some systems, it is "ld". On "ELF"
5960 systems, it should be $cc. Mostly, we'll try to respect the hint
5961 file setting.
5962 "ld_can_script"
5964 From dlsrc.U:
5965 This variable shows if the loader accepts scripts in the form of
5967 -Wl,--version-script=ld.script. This is currently only supported
5968 for "GNU" ld on "ELF" in dynamic loading builds.
5969 "lddlflags"
5971 From dlsrc.U:
5972 This variable contains any special flags that might need to be
5974 passed to $ld to create a shared library suitable for dynamic
5975 loading. It is up to the makefile to use it. For hpux, it should
5976 be "-b". For sunos 4.1, it is empty.
5977 "ldflags"
5979 From ccflags.U:
5980 This variable contains any additional C loader flags desired by the
5982 user. It is up to the Makefile to use this.
5983 "ldflags_uselargefiles"
5985 From uselfs.U:
5986 This variable contains the loader flags needed by large file builds
5988 and added to ldflags by hints files.
5989 "ldlibpthname"
5991 From libperl.U:
5992 This variable holds the name of the shared library search path,
5994 often "LD_LIBRARY_PATH". To get an empty string, the hints file
5995 must set this to "none".
5996 "less"
5998 From Loc.U:
5999 This variable is used internally by Configure to determine the full
6001 pathname (if any) of the less program. After Configure runs, the
6002 value is reset to a plain "less" and is not useful.
6003 "lib_ext"
6005 From Unix.U:
6006 This is an old synonym for _a.
6008 "libc"
6010 From libc.U:
6011 This variable contains the location of the C library.
6013 "libperl"
6015 From libperl.U:
6016 The perl executable is obtained by linking perlmain.c with libperl,
6018 any static extensions (usually just DynaLoader), and any other
6019 libraries needed on this system. libperl is usually libperl.a, but
6020 can also be libperl.so.xxx if the user wishes to build a perl
6021 executable with a shared library.
6022 "libpth"
6024 From libpth.U:
6025 This variable holds the general path (space-separated) used to find
6027 libraries. It is intended to be used by other units.
6028 "libs"
6030 From libs.U:
6031 This variable holds the additional libraries we want to use. It is
6033 up to the Makefile to deal with it. The list can be empty.
6034 "libsdirs"
6036 From libs.U:
6037 This variable holds the directory names aka dirnames of the
6039 libraries we found and accepted, duplicates are removed.
6040 "libsfiles"
6042 From libs.U:
6043 This variable holds the filenames aka basenames of the libraries we
6045 found and accepted.
6046 "libsfound"
6048 From libs.U:
6049 This variable holds the full pathnames of the libraries we found
6051 and accepted.
6052 "libspath"
6054 From libs.U:
6055 This variable holds the directory names probed for libraries.
6057 "libswanted"
6059 From Myinit.U:
6060 This variable holds a list of all the libraries we want to search.
6062 The order is chosen to pick up the c library ahead of ucb or bsd
6063 libraries for SVR4.
6064 "libswanted_uselargefiles"
6066 From uselfs.U:
6067 This variable contains the libraries needed by large file builds
6069 and added to ldflags by hints files. It is a space separated list
6070 of the library names without the "lib" prefix or any suffix, just
6071 like libswanted..
6072 "line"
6074 From Loc.U:
6075 This variable is defined but not used by Configure. The value is
6077 the empty string and is not useful.
6078 "lint"
6080 From Loc.U:
6081 This variable is defined but not used by Configure. The value is
6083 the empty string and is not useful.
6084 "lkflags"
6086 From ccflags.U:
6087 This variable contains any additional C partial linker flags
6089 desired by the user. It is up to the Makefile to use this.
6090 "ln"
6092 From Loc.U:
6093 This variable is used internally by Configure to determine the full
6095 pathname (if any) of the ln program. After Configure runs, the
6096 value is reset to a plain "ln" and is not useful.
6097 "lns"
6099 From lns.U:
6100 This variable holds the name of the command to make symbolic links
6102 (if they are supported). It can be used in the Makefile. It is
6103 either "ln -s" or "ln"
6104 "localtime_r_proto"
6106 From d_localtime_r.U:
6107 This variable encodes the prototype of localtime_r. It is zero if
6109 d_localtime_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
6110 macros of reentr.h if d_localtime_r is defined.
6111 "locincpth"
6113 From ccflags.U:
6114 This variable contains a list of additional directories to be
6116 searched by the compiler. The appropriate "-I" directives will be
6117 added to ccflags. This is intended to simplify setting local
6118 directories from the Configure command line. It's not much, but it
6119 parallels the loclibpth stuff in libpth.U.
6120 "loclibpth"
6122 From libpth.U:
6123 This variable holds the paths (space-separated) used to find local
6125 libraries. It is prepended to libpth, and is intended to be easily
6126 set from the command line.
6127 "longdblinfbytes"
6129 From infnan.U:
6130 This variable contains comma-separated list of hexadecimal bytes
6132 for the long double precision infinity.
6133 "longdblkind"
6135 From d_longdbl.U:
6136 This variable, if defined, encodes the type of a long double: 0 =
6138 double, 1 = "IEEE" 754 128-bit little endian, 2 = "IEEE" 754
6139 128-bit big endian, 3 = x86 80-bit little endian, 4 = x86 80-bit
6140 big endian, 5 = double-double 128-bit little endian, 6 = double-
6141 double 128-bit big endian, 7 = 128-bit mixed-endian double-double
6142 (64-bit LEs in "BE"), 8 = 128-bit mixed-endian double-double
6143 (64-bit BEs in "LE"), 9 = 128-bit "PDP"-style mixed-endian long
6144 doubles, -1 = unknown format.
6145 "longdblmantbits"
6147 From mantbits.U:
6148 This symbol, if defined, tells how many mantissa bits there are in
6150 long double precision floating point format. Note that this can be
6151 "LDBL_MANT_DIG" minus one, since "LDBL_MANT_DIG" can include the
6152 "IEEE" 754 implicit bit. The common x86-style 80-bit long double
6153 does not have an implicit bit.
6154 "longdblnanbytes"
6156 From infnan.U:
6157 This variable contains comma-separated list of hexadecimal bytes
6159 for the long double precision not-a-number.
6160 "longdblsize"
6162 From d_longdbl.U:
6163 This variable contains the value of the "LONG_DOUBLESIZE" symbol,
6165 which indicates to the C program how many bytes there are in a long
6166 double, if this system supports long doubles. Note that this is
6167 sizeof(long double), which may include unused bytes.
6168 "longlongsize"
6170 From d_longlong.U:
6171 This variable contains the value of the "LONGLONGSIZE" symbol,
6173 which indicates to the C program how many bytes there are in a long
6174 long, if this system supports long long.
6175 "longsize"
6177 From intsize.U:
6178 This variable contains the value of the "LONGSIZE" symbol, which
6180 indicates to the C program how many bytes there are in a long.
6181 "lp"
6183 From Loc.U:
6184 This variable is defined but not used by Configure. The value is
6186 the empty string and is not useful.
6187 "lpr"
6189 From Loc.U:
6190 This variable is defined but not used by Configure. The value is
6192 the empty string and is not useful.
6193 "ls"
6195 From Loc.U:
6196 This variable is used internally by Configure to determine the full
6198 pathname (if any) of the ls program. After Configure runs, the
6199 value is reset to a plain "ls" and is not useful.
6200 "lseeksize"
6202 From lseektype.U:
6203 This variable defines lseektype to be something like off_t, long,
6205 or whatever type is used to declare lseek offset's type in the
6206 kernel (which also appears to be lseek's return type).
6207 "lseektype"
6209 From lseektype.U:
6210 This variable defines lseektype to be something like off_t, long,
6212 or whatever type is used to declare lseek offset's type in the
6213 kernel (which also appears to be lseek's return type).
6214 m
6216 "mail"
6217 From Loc.U:
6218 This variable is defined but not used by Configure. The value is
6220 the empty string and is not useful.
6221 "mailx"
6223 From Loc.U:
6224 This variable is defined but not used by Configure. The value is
6226 the empty string and is not useful.
6227 "make"
6229 From Loc.U:
6230 This variable is used internally by Configure to determine the full
6232 pathname (if any) of the make program. After Configure runs, the
6233 value is reset to a plain "make" and is not useful.
6234 "make_set_make"
6236 From make.U:
6237 Some versions of "make" set the variable "MAKE". Others do not.
6239 This variable contains the string to be included in Makefile.SH so
6240 that "MAKE" is set if needed, and not if not needed. Possible
6241 values are:
6242 make_set_make="#" # If your make program handles this for
6244 you,
6245 make_set_make="MAKE=$make" # if it doesn't.
6247 This uses a comment character so that we can distinguish a "set"
6249 value (from a previous config.sh or Configure "-D" option) from an
6250 uncomputed value.
6251 "mallocobj"
6253 From mallocsrc.U:
6254 This variable contains the name of the malloc.o that this package
6256 generates, if that malloc.o is preferred over the system malloc.
6257 Otherwise the value is null. This variable is intended for
6258 generating Makefiles. See mallocsrc.
6259 "mallocsrc"
6261 From mallocsrc.U:
6262 This variable contains the name of the malloc.c that comes with the
6264 package, if that malloc.c is preferred over the system malloc.
6265 Otherwise the value is null. This variable is intended for
6266 generating Makefiles.
6267 "malloctype"
6269 From mallocsrc.U:
6270 This variable contains the kind of ptr returned by malloc and
6272 realloc.
6273 "man1dir"
6275 From man1dir.U:
6276 This variable contains the name of the directory in which manual
6278 source pages are to be put. It is the responsibility of the
6279 Makefile.SH to get the value of this into the proper command. You
6280 must be prepared to do the ~name expansion yourself.
6281 "man1direxp"
6283 From man1dir.U:
6284 This variable is the same as the man1dir variable, but is filename
6286 expanded at configuration time, for convenient use in makefiles.
6287 "man1ext"
6289 From man1dir.U:
6290 This variable contains the extension that the manual page should
6292 have: one of "n", "l", or 1. The Makefile must supply the .. See
6293 man1dir.
6294 "man3dir"
6296 From man3dir.U:
6297 This variable contains the name of the directory in which manual
6299 source pages are to be put. It is the responsibility of the
6300 Makefile.SH to get the value of this into the proper command. You
6301 must be prepared to do the ~name expansion yourself.
6302 "man3direxp"
6304 From man3dir.U:
6305 This variable is the same as the man3dir variable, but is filename
6307 expanded at configuration time, for convenient use in makefiles.
6308 "man3ext"
6310 From man3dir.U:
6311 This variable contains the extension that the manual page should
6313 have: one of "n", "l", or 3. The Makefile must supply the .. See
6314 man3dir.
6315 "mips_type"
6317 From usrinc.U:
6318 This variable holds the environment type for the mips system.
6320 Possible values are "BSD 4.3" and "System V".
6321 "mistrustnm"
6323 From Csym.U:
6324 This variable can be used to establish a fallthrough for the cases
6326 where nm fails to find a symbol. If usenm is false or usenm is
6327 true and mistrustnm is false, this variable has no effect. If
6328 usenm is true and mistrustnm is "compile", a test program will be
6329 compiled to try to find any symbol that can't be located via nm
6330 lookup. If mistrustnm is "run", the test program will be run as
6331 well as being compiled.
6332 "mkdir"
6334 From Loc.U:
6335 This variable is used internally by Configure to determine the full
6337 pathname (if any) of the mkdir program. After Configure runs, the
6338 value is reset to a plain "mkdir" and is not useful.
6339 "mmaptype"
6341 From d_mmap.U:
6342 This symbol contains the type of pointer returned by mmap() (and
6344 simultaneously the type of the first argument). It can be "void *"
6345 or "caddr_t".
6346 "modetype"
6348 From modetype.U:
6349 This variable defines modetype to be something like mode_t, int,
6351 unsigned short, or whatever type is used to declare file modes for
6352 system calls.
6353 "more"
6355 From Loc.U:
6356 This variable is used internally by Configure to determine the full
6358 pathname (if any) of the more program. After Configure runs, the
6359 value is reset to a plain "more" and is not useful.
6360 "multiarch"
6362 From multiarch.U:
6363 This variable conditionally defines the "MULTIARCH" symbol which
6365 signifies the presence of multiplatform files. This is normally
6366 set by hints files.
6367 "mv"
6369 From Loc.U:
6370 This variable is defined but not used by Configure. The value is
6372 the empty string and is not useful.
6373 "myarchname"
6375 From archname.U:
6376 This variable holds the architecture name computed by Configure in
6378 a previous run. It is not intended to be perused by any user and
6379 should never be set in a hint file.
6380 "mydomain"
6382 From myhostname.U:
6383 This variable contains the eventual value of the "MYDOMAIN" symbol,
6385 which is the domain of the host the program is going to run on.
6386 The domain must be appended to myhostname to form a complete host
6387 name. The dot comes with mydomain, and need not be supplied by the
6388 program.
6389 "myhostname"
6391 From myhostname.U:
6392 This variable contains the eventual value of the "MYHOSTNAME"
6394 symbol, which is the name of the host the program is going to run
6395 on. The domain is not kept with hostname, but must be gotten from
6396 mydomain. The dot comes with mydomain, and need not be supplied by
6397 the program.
6398 "myuname"
6400 From Oldconfig.U:
6401 The output of "uname -a" if available, otherwise the hostname. The
6403 whole thing is then lower-cased and slashes and single quotes are
6404 removed.
6405 n
6407 "n" From n.U:
6408 This variable contains the "-n" flag if that is what causes the
6410 echo command to suppress newline. Otherwise it is null. Correct
6411 usage is $echo $n "prompt for a question: $c".
6412 "need_va_copy"
6414 From need_va_copy.U:
6415 This symbol, if defined, indicates that the system stores the
6417 variable argument list datatype, va_list, in a format that cannot
6418 be copied by simple assignment, so that some other means must be
6419 used when copying is required. As such systems vary in their
6420 provision (or non-provision) of copying mechanisms, handy.h defines
6421 a platform- "independent" macro, Perl_va_copy(src, dst), to do the
6422 job.
6423 "netdb_hlen_type"
6425 From netdbtype.U:
6426 This variable holds the type used for the 2nd argument to
6428 gethostbyaddr(). Usually, this is int or size_t or unsigned. This
6429 is only useful if you have gethostbyaddr(), naturally.
6430 "netdb_host_type"
6432 From netdbtype.U:
6433 This variable holds the type used for the 1st argument to
6435 gethostbyaddr(). Usually, this is char * or void *, possibly with
6436 or without a const prefix. This is only useful if you have
6437 gethostbyaddr(), naturally.
6438 "netdb_name_type"
6440 From netdbtype.U:
6441 This variable holds the type used for the argument to
6443 gethostbyname(). Usually, this is char * or const char *. This is
6444 only useful if you have gethostbyname(), naturally.
6445 "netdb_net_type"
6447 From netdbtype.U:
6448 This variable holds the type used for the 1st argument to
6450 getnetbyaddr(). Usually, this is int or long. This is only useful
6451 if you have getnetbyaddr(), naturally.
6452 "nm"
6454 From Loc.U:
6455 This variable is used internally by Configure to determine the full
6457 pathname (if any) of the nm program. After Configure runs, the
6458 value is reset to a plain "nm" and is not useful.
6459 "nm_opt"
6461 From usenm.U:
6462 This variable holds the options that may be necessary for nm.
6464 "nm_so_opt"
6466 From usenm.U:
6467 This variable holds the options that may be necessary for nm to
6469 work on a shared library but that can not be used on an archive
6470 library. Currently, this is only used by Linux, where nm --dynamic
6471 is *required* to get symbols from an "ELF" library which has been
6472 stripped, but nm --dynamic is *fatal* on an archive library. Maybe
6473 Linux should just always set usenm=false.
6474 "nonxs_ext"
6476 From Extensions.U:
6477 This variable holds a list of all non-xs extensions built and
6479 installed by the package. By default, all non-xs extensions
6480 distributed will be built, with the exception of platform-specific
6481 extensions (currently only one "VMS" specific extension).
6482 "nroff"
6484 From Loc.U:
6485 This variable is used internally by Configure to determine the full
6487 pathname (if any) of the nroff program. After Configure runs, the
6488 value is reset to a plain "nroff" and is not useful.
6489 "nv_overflows_integers_at"
6491 From perlxv.U:
6492 This variable gives the largest integer value that NVs can hold as
6494 a constant floating point expression. If it could not be
6495 determined, it holds the value 0.
6496 "nv_preserves_uv_bits"
6498 From perlxv.U:
6499 This variable indicates how many of bits type uvtype a variable
6501 nvtype can preserve.
6502 "nveformat"
6504 From perlxvf.U:
6505 This variable contains the format string used for printing a Perl
6507 "NV" using %e-ish floating point format.
6508 "nvEUformat"
6510 From perlxvf.U:
6511 This variable contains the format string used for printing a Perl
6513 "NV" using %E-ish floating point format.
6514 "nvfformat"
6516 From perlxvf.U:
6517 This variable contains the format string used for printing a Perl
6519 "NV" using %f-ish floating point format.
6520 "nvFUformat"
6522 From perlxvf.U:
6523 This variable contains the format string used for printing a Perl
6525 "NV" using %F-ish floating point format.
6526 "nvgformat"
6528 From perlxvf.U:
6529 This variable contains the format string used for printing a Perl
6531 "NV" using %g-ish floating point format.
6532 "nvGUformat"
6534 From perlxvf.U:
6535 This variable contains the format string used for printing a Perl
6537 "NV" using %G-ish floating point format.
6538 "nvmantbits"
6540 From mantbits.U:
6541 This variable tells how many bits the mantissa of a Perl "NV" has,
6543 not including the possible implicit bit.
6544 "nvsize"
6546 From perlxv.U:
6547 This variable is the size of a Perl "NV" in bytes. Note that some
6549 floating point formats have unused bytes.
6550 "nvtype"
6552 From perlxv.U:
6553 This variable contains the C type used for Perl's "NV".
6555 o
6557 "o_nonblock"
6558 From nblock_io.U:
6559 This variable bears the symbol value to be used during open() or
6561 fcntl() to turn on non-blocking I/O for a file descriptor. If you
6562 wish to switch between blocking and non-blocking, you may try
6563 ioctl("FIOSNBIO") instead, but that is only supported by some
6564 devices.
6565 "obj_ext"
6567 From Unix.U:
6568 This is an old synonym for _o.
6570 "old_pthread_create_joinable"
6572 From d_pthrattrj.U:
6573 This variable defines the constant to use for creating joinable
6575 (aka undetached) pthreads. Unused if pthread.h defines
6576 "PTHREAD_CREATE_JOINABLE". If used, possible values are
6577 "PTHREAD_CREATE_UNDETACHED" and "__UNDETACHED".
6578 "optimize"
6580 From ccflags.U:
6581 This variable contains any optimizer/debugger flag that should be
6583 used. It is up to the Makefile to use it.
6584 "orderlib"
6586 From orderlib.U:
6587 This variable is "true" if the components of libraries must be
6589 ordered (with `lorder $* | tsort`) before placing them in an
6590 archive. Set to "false" if ranlib or ar can generate random
6591 libraries.
6592 "osname"
6594 From Oldconfig.U:
6595 This variable contains the operating system name (e.g. sunos,
6597 solaris, hpux, etc.). It can be useful later on for setting
6598 defaults. Any spaces are replaced with underscores. It is set to
6599 a null string if we can't figure it out.
6600 "osvers"
6602 From Oldconfig.U:
6603 This variable contains the operating system version (e.g. 4.1.3,
6605 5.2, etc.). It is primarily used for helping select an appropriate
6606 hints file, but might be useful elsewhere for setting defaults. It
6607 is set to '' if we can't figure it out. We try to be flexible
6608 about how much of the version number to keep, e.g. if 4.1.1, 4.1.2,
6609 and 4.1.3 are essentially the same for this package, hints files
6610 might just be os_4.0 or os_4.1, etc., not keeping separate files
6611 for each little release.
6612 "otherlibdirs"
6614 From otherlibdirs.U:
6615 This variable contains a colon-separated set of paths for the perl
6617 binary to search for additional library files or modules. These
6618 directories will be tacked to the end of @"INC". Perl will
6619 automatically search below each path for version- and architecture-
6620 specific directories. See inc_version_list for more details. A
6621 value of " " means "none" and is used to preserve this value for
6622 the next run through Configure.
6623 p
6625 "package"
6626 From package.U:
6627 This variable contains the name of the package being constructed.
6629 It is primarily intended for the use of later Configure units.
6630 "pager"
6632 From pager.U:
6633 This variable contains the name of the preferred pager on the
6635 system. Usual values are (the full pathnames of) more, less, pg,
6636 or cat.
6637 "passcat"
6639 From nis.U:
6640 This variable contains a command that produces the text of the
6642 /etc/passwd file. This is normally "cat /etc/passwd", but can be
6643 "ypcat passwd" when "NIS" is used. On some systems, such as os390,
6644 there may be no equivalent command, in which case this variable is
6645 unset.
6646 "patchlevel"
6648 From patchlevel.U:
6649 The patchlevel level of this package. The value of patchlevel
6651 comes from the patchlevel.h file. In a version number such as
6652 5.6.1, this is the 6. In patchlevel.h, this is referred to as
6653 "PERL_VERSION".
6654 "path_sep"
6656 From Unix.U:
6657 This is an old synonym for p_ in Head.U, the character used to
6659 separate elements in the command shell search "PATH".
6660 "perl"
6662 From Loc.U:
6663 This variable is used internally by Configure to determine the full
6665 pathname (if any) of the perl program. After Configure runs, the
6666 value is reset to a plain "perl" and is not useful.
6667 "perl5"
6669 From perl5.U:
6670 This variable contains the full path (if any) to a previously
6672 installed perl5.005 or later suitable for running the script to
6673 determine inc_version_list.
6674 P
6676 "PERL_API_REVISION"
6677 From patchlevel.h:
6678 This number describes the earliest compatible "PERL_REVISION" of
6680 Perl ("compatibility" here being defined as sufficient binary/"API"
6681 compatibility to run "XS" code built with the older version).
6682 Normally this does not change across maintenance releases. Please
6683 read the comment in patchlevel.h.
6684 "PERL_API_SUBVERSION"
6686 From patchlevel.h:
6687 This number describes the earliest compatible "PERL_SUBVERSION" of
6689 Perl ("compatibility" here being defined as sufficient binary/"API"
6690 compatibility to run "XS" code built with the older version).
6691 Normally this does not change across maintenance releases. Please
6692 read the comment in patchlevel.h.
6693 "PERL_API_VERSION"
6695 From patchlevel.h:
6696 This number describes the earliest compatible "PERL_VERSION" of
6698 Perl ("compatibility" here being defined as sufficient binary/"API"
6699 compatibility to run "XS" code built with the older version).
6700 Normally this does not change across maintenance releases. Please
6701 read the comment in patchlevel.h.
6702 "PERL_CONFIG_SH"
6704 From Oldsyms.U:
6705 This is set to "true" in config.sh so that a shell script sourcing
6707 config.sh can tell if it has been sourced already.
6708 "PERL_PATCHLEVEL"
6710 From Oldsyms.U:
6711 This symbol reflects the patchlevel, if available. Will usually
6713 come from the .patch file, which is available when the perl source
6714 tree was fetched with rsync.
6715 "perl_patchlevel"
6717 From patchlevel.U:
6718 This is the Perl patch level, a numeric change identifier, as
6720 defined by whichever source code maintenance system is used to
6721 maintain the patches; currently Perforce. It does not correlate
6722 with the Perl version numbers or the maintenance versus development
6723 dichotomy except by also being increasing.
6724 "PERL_REVISION"
6726 From Oldsyms.U:
6727 In a Perl version number such as 5.6.2, this is the 5. This value
6729 is manually set in patchlevel.h
6730 "perl_static_inline"
6732 From d_static_inline.U:
6733 This variable defines the "PERL_STATIC_INLINE" symbol to the best-
6735 guess incantation to use for static inline functions.
6736 Possibilities include static inline (c99) static __inline__
6737 (gcc -ansi) static __inline ("MSVC") static _inline (older
6738 "MSVC") static (c89 compilers)
6739 "PERL_SUBVERSION"
6741 From Oldsyms.U:
6742 In a Perl version number such as 5.6.2, this is the 2. Values
6744 greater than 50 represent potentially unstable development
6745 subversions. This value is manually set in patchlevel.h
6746 "PERL_VERSION"
6748 From Oldsyms.U:
6749 In a Perl version number such as 5.6.2, this is the 6. This value
6751 is manually set in patchlevel.h
6752 "perladmin"
6754 From perladmin.U:
6755 Electronic mail address of the perl5 administrator.
6757 "perllibs"
6759 From End.U:
6760 The list of libraries needed by Perl only (any libraries needed by
6762 extensions only will by dropped, if using dynamic loading).
6763 "perlpath"
6765 From perlpath.U:
6766 This variable contains the eventual value of the "PERLPATH" symbol,
6768 which contains the name of the perl interpreter to be used in shell
6769 scripts and in the "eval "exec"" idiom. This variable is not
6770 necessarily the pathname of the file containing the perl
6771 interpreter; you must append the executable extension (_exe) if it
6772 is not already present. Note that Perl code that runs during the
6773 Perl build process cannot reference this variable, as Perl may not
6774 have been installed, or even if installed, may be a different
6775 version of Perl.
6776 "pg"
6778 From Loc.U:
6779 This variable is used internally by Configure to determine the full
6781 pathname (if any) of the pg program. After Configure runs, the
6782 value is reset to a plain "pg" and is not useful.
6783 "phostname"
6785 From myhostname.U:
6786 This variable contains the eventual value of the "PHOSTNAME"
6788 symbol, which is a command that can be fed to popen() to get the
6789 host name. The program should probably not presume that the domain
6790 is or isn't there already.
6791 "pidtype"
6793 From pidtype.U:
6794 This variable defines "PIDTYPE" to be something like pid_t, int,
6796 ushort, or whatever type is used to declare process ids in the
6797 kernel.
6798 "plibpth"
6800 From libpth.U:
6801 Holds the private path used by Configure to find out the libraries.
6803 Its value is prepend to libpth. This variable takes care of special
6804 machines, like the mips. Usually, it should be empty.
6805 "pmake"
6807 From Loc.U:
6808 This variable is defined but not used by Configure. The value is
6810 the empty string and is not useful.
6811 "pr"
6813 From Loc.U:
6814 This variable is defined but not used by Configure. The value is
6816 the empty string and is not useful.
6817 "prefix"
6819 From prefix.U:
6820 This variable holds the name of the directory below which the user
6822 will install the package. Usually, this is /usr/local, and
6823 executables go in /usr/local/bin, library stuff in /usr/local/lib,
6824 man pages in /usr/local/man, etc. It is only used to set defaults
6825 for things in bin.U, mansrc.U, privlib.U, or scriptdir.U.
6826 "prefixexp"
6828 From prefix.U:
6829 This variable holds the full absolute path of the directory below
6831 which the user will install the package. Derived from prefix.
6832 "privlib"
6834 From privlib.U:
6835 This variable contains the eventual value of the "PRIVLIB" symbol,
6837 which is the name of the private library for this package. It may
6838 have a ~ on the front. It is up to the makefile to eventually
6839 create this directory while performing installation (with ~
6840 substitution).
6841 "privlibexp"
6843 From privlib.U:
6844 This variable is the ~name expanded version of privlib, so that you
6846 may use it directly in Makefiles or shell scripts.
6847 "procselfexe"
6849 From d_procselfexe.U:
6850 If d_procselfexe is defined, $procselfexe is the filename of the
6852 symbolic link pointing to the absolute pathname of the executing
6853 program.
6854 "ptrsize"
6856 From ptrsize.U:
6857 This variable contains the value of the "PTRSIZE" symbol, which
6859 indicates to the C program how many bytes there are in a pointer.
6860 q
6862 "quadkind"
6863 From quadtype.U:
6864 This variable, if defined, encodes the type of a quad: 1 = int, 2 =
6866 long, 3 = long long, 4 = int64_t.
6867 "quadtype"
6869 From quadtype.U:
6870 This variable defines Quad_t to be something like long, int, long
6872 long, int64_t, or whatever type is used for 64-bit integers.
6873 r
6875 "randbits"
6876 From randfunc.U:
6877 Indicates how many bits are produced by the function used to
6879 generate normalized random numbers.
6880 "randfunc"
6882 From randfunc.U:
6883 Indicates the name of the random number function to use. Values
6885 include drand48, random, and rand. In C programs, the "Drand01"
6886 macro is defined to generate uniformly distributed random numbers
6887 over the range [0., 1.[ (see drand01 and nrand).
6888 "random_r_proto"
6890 From d_random_r.U:
6891 This variable encodes the prototype of random_r. It is zero if
6893 d_random_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
6894 of reentr.h if d_random_r is defined.
6895 "randseedtype"
6897 From randfunc.U:
6898 Indicates the type of the argument of the seedfunc.
6900 "ranlib"
6902 From orderlib.U:
6903 This variable is set to the pathname of the ranlib program, if it
6905 is needed to generate random libraries. Set to ":" if ar can
6906 generate random libraries or if random libraries are not supported
6907 "rd_nodata"
6909 From nblock_io.U:
6910 This variable holds the return code from read() when no data is
6912 present. It should be -1, but some systems return 0 when "O_NDELAY"
6913 is used, which is a shame because you cannot make the difference
6914 between no data and an EOF.. Sigh!
6915 "readdir64_r_proto"
6917 From d_readdir64_r.U:
6918 This variable encodes the prototype of readdir64_r. It is zero if
6920 d_readdir64_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
6921 macros of reentr.h if d_readdir64_r is defined.
6922 "readdir_r_proto"
6924 From d_readdir_r.U:
6925 This variable encodes the prototype of readdir_r. It is zero if
6927 d_readdir_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
6928 of reentr.h if d_readdir_r is defined.
6929 "revision"
6931 From patchlevel.U:
6932 The value of revision comes from the patchlevel.h file. In a
6934 version number such as 5.6.1, this is the 5. In patchlevel.h, this
6935 is referred to as "PERL_REVISION".
6936 "rm"
6938 From Loc.U:
6939 This variable is used internally by Configure to determine the full
6941 pathname (if any) of the rm program. After Configure runs, the
6942 value is reset to a plain "rm" and is not useful.
6943 "rm_try"
6945 From Unix.U:
6946 This is a cleanup variable for try test programs. Internal
6948 Configure use only.
6949 "rmail"
6951 From Loc.U:
6952 This variable is defined but not used by Configure. The value is
6954 the empty string and is not useful.
6955 "run"
6957 From Cross.U:
6958 This variable contains the command used by Configure to copy and
6960 execute a cross-compiled executable in the target host. Useful and
6961 available only during Perl build. Empty string '' if not cross-
6962 compiling.
6963 "runnm"
6965 From usenm.U:
6966 This variable contains "true" or "false" depending whether the nm
6968 extraction should be performed or not, according to the value of
6969 usenm and the flags on the Configure command line.
6970 s
6972 "sched_yield"
6973 From d_pthread_y.U:
6974 This variable defines the way to yield the execution of the current
6976 thread.
6977 "scriptdir"
6979 From scriptdir.U:
6980 This variable holds the name of the directory in which the user
6982 wants to put publicly scripts for the package in question. It is
6983 either the same directory as for binaries, or a special one that
6984 can be mounted across different architectures, like /usr/share.
6985 Programs must be prepared to deal with ~name expansion.
6986 "scriptdirexp"
6988 From scriptdir.U:
6989 This variable is the same as scriptdir, but is filename expanded at
6991 configuration time, for programs not wanting to bother with it.
6992 "sed"
6994 From Loc.U:
6995 This variable is used internally by Configure to determine the full
6997 pathname (if any) of the sed program. After Configure runs, the
6998 value is reset to a plain "sed" and is not useful.
6999 "seedfunc"
7001 From randfunc.U:
7002 Indicates the random number generating seed function. Values
7004 include srand48, srandom, and srand.
7005 "selectminbits"
7007 From selectminbits.U:
7008 This variable holds the minimum number of bits operated by select.
7010 That is, if you do select(n, ...), how many bits at least will be
7011 cleared in the masks if some activity is detected. Usually this is
7012 either n or 32*ceil(n/32), especially many little-endians do the
7013 latter. This is only useful if you have select(), naturally.
7014 "selecttype"
7016 From selecttype.U:
7017 This variable holds the type used for the 2nd, 3rd, and 4th
7019 arguments to select. Usually, this is "fd_set *", if "HAS_FD_SET"
7020 is defined, and "int *" otherwise. This is only useful if you have
7021 select(), naturally.
7022 "sendmail"
7024 From Loc.U:
7025 This variable is defined but not used by Configure. The value is
7027 the empty string and is not useful.
7028 "setgrent_r_proto"
7030 From d_setgrent_r.U:
7031 This variable encodes the prototype of setgrent_r. It is zero if
7033 d_setgrent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7034 macros of reentr.h if d_setgrent_r is defined.
7035 "sethostent_r_proto"
7037 From d_sethostent_r.U:
7038 This variable encodes the prototype of sethostent_r. It is zero if
7040 d_sethostent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7041 macros of reentr.h if d_sethostent_r is defined.
7042 "setlocale_r_proto"
7044 From d_setlocale_r.U:
7045 This variable encodes the prototype of setlocale_r. It is zero if
7047 d_setlocale_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7048 macros of reentr.h if d_setlocale_r is defined.
7049 "setnetent_r_proto"
7051 From d_setnetent_r.U:
7052 This variable encodes the prototype of setnetent_r. It is zero if
7054 d_setnetent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7055 macros of reentr.h if d_setnetent_r is defined.
7056 "setprotoent_r_proto"
7058 From d_setprotoent_r.U:
7059 This variable encodes the prototype of setprotoent_r. It is zero
7061 if d_setprotoent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7062 macros of reentr.h if d_setprotoent_r is defined.
7063 "setpwent_r_proto"
7065 From d_setpwent_r.U:
7066 This variable encodes the prototype of setpwent_r. It is zero if
7068 d_setpwent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7069 macros of reentr.h if d_setpwent_r is defined.
7070 "setservent_r_proto"
7072 From d_setservent_r.U:
7073 This variable encodes the prototype of setservent_r. It is zero if
7075 d_setservent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7076 macros of reentr.h if d_setservent_r is defined.
7077 "sGMTIME_max"
7079 From time_size.U:
7080 This variable defines the maximum value of the time_t offset that
7082 the system function gmtime () accepts
7083 "sGMTIME_min"
7085 From time_size.U:
7086 This variable defines the minimum value of the time_t offset that
7088 the system function gmtime () accepts
7089 "sh"
7091 From sh.U:
7092 This variable contains the full pathname of the shell used on this
7094 system to execute Bourne shell scripts. Usually, this will be
7095 /bin/sh, though it's possible that some systems will have /bin/ksh,
7096 /bin/pdksh, /bin/ash, /bin/bash, or even something such as
7097 D:/bin/sh.exe. This unit comes before Options.U, so you can't set
7098 sh with a "-D" option, though you can override this (and startsh)
7099 with "-O -Dsh=/bin/whatever -Dstartsh=whatever"
7100 "shar"
7102 From Loc.U:
7103 This variable is defined but not used by Configure. The value is
7105 the empty string and is not useful.
7106 "sharpbang"
7108 From spitshell.U:
7109 This variable contains the string #! if this system supports that
7111 construct.
7112 "shmattype"
7114 From d_shmat.U:
7115 This symbol contains the type of pointer returned by shmat(). It
7117 can be "void *" or "char *".
7118 "shortsize"
7120 From intsize.U:
7121 This variable contains the value of the "SHORTSIZE" symbol which
7123 indicates to the C program how many bytes there are in a short.
7124 "shrpenv"
7126 From libperl.U:
7127 If the user builds a shared libperl.so, then we need to tell the
7129 "perl" executable where it will be able to find the installed
7130 libperl.so. One way to do this on some systems is to set the
7131 environment variable "LD_RUN_PATH" to the directory that will be
7132 the final location of the shared libperl.so. The makefile can use
7133 this with something like $shrpenv $("CC") -o perl perlmain.o
7134 $libperl $libs Typical values are shrpenv="env
7135 "LD_RUN_PATH"=$archlibexp/"CORE"" or shrpenv='' See the main perl
7136 Makefile.SH for actual working usage.
7137 Alternatively, we might be able to use a command line option such
7139 as -R $archlibexp/"CORE" (Solaris) or -Wl,-rpath $archlibexp/"CORE"
7140 (Linux).
7141 "shsharp"
7143 From spitshell.U:
7144 This variable tells further Configure units whether your sh can
7146 handle # comments.
7147 "sig_count"
7149 From sig_name.U:
7150 This variable holds a number larger than the largest valid signal
7152 number. This is usually the same as the "NSIG" macro.
7153 "sig_name"
7155 From sig_name.U:
7156 This variable holds the signal names, space separated. The leading
7158 "SIG" in signal name is removed. A "ZERO" is prepended to the
7159 list. This is currently not used, sig_name_init is used instead.
7160 "sig_name_init"
7162 From sig_name.U:
7163 This variable holds the signal names, enclosed in double quotes and
7165 separated by commas, suitable for use in the "SIG_NAME" definition
7166 below. A "ZERO" is prepended to the list, and the list is
7167 terminated with a plain 0. The leading "SIG" in signal names is
7168 removed. See sig_num.
7169 "sig_num"
7171 From sig_name.U:
7172 This variable holds the signal numbers, space separated. A "ZERO"
7174 is prepended to the list (corresponding to the fake "SIGZERO").
7175 Those numbers correspond to the value of the signal listed in the
7176 same place within the sig_name list. This is currently not used,
7177 sig_num_init is used instead.
7178 "sig_num_init"
7180 From sig_name.U:
7181 This variable holds the signal numbers, enclosed in double quotes
7183 and separated by commas, suitable for use in the "SIG_NUM"
7184 definition below. A "ZERO" is prepended to the list, and the list
7185 is terminated with a plain 0.
7186 "sig_size"
7188 From sig_name.U:
7189 This variable contains the number of elements of the sig_name and
7191 sig_num arrays.
7192 "signal_t"
7194 From d_voidsig.U:
7195 This variable holds the type of the signal handler (void or int).
7197 "sitearch"
7199 From sitearch.U:
7200 This variable contains the eventual value of the "SITEARCH" symbol,
7202 which is the name of the private library for this package. It may
7203 have a ~ on the front. It is up to the makefile to eventually
7204 create this directory while performing installation (with ~
7205 substitution). The standard distribution will put nothing in this
7206 directory. After perl has been installed, users may install their
7207 own local architecture-dependent modules in this directory with
7208 MakeMaker Makefile.PL or equivalent. See "INSTALL" for details.
7209 "sitearchexp"
7211 From sitearch.U:
7212 This variable is the ~name expanded version of sitearch, so that
7214 you may use it directly in Makefiles or shell scripts.
7215 "sitebin"
7217 From sitebin.U:
7218 This variable holds the name of the directory in which the user
7220 wants to put add-on publicly executable files for the package in
7221 question. It is most often a local directory such as
7222 /usr/local/bin. Programs using this variable must be prepared to
7223 deal with ~name substitution. The standard distribution will put
7224 nothing in this directory. After perl has been installed, users
7225 may install their own local executables in this directory with
7226 MakeMaker Makefile.PL or equivalent. See "INSTALL" for details.
7227 "sitebinexp"
7229 From sitebin.U:
7230 This is the same as the sitebin variable, but is filename expanded
7232 at configuration time, for use in your makefiles.
7233 "sitehtml1dir"
7235 From sitehtml1dir.U:
7236 This variable contains the name of the directory in which site-
7238 specific html source pages are to be put. It is the responsibility
7239 of the Makefile.SH to get the value of this into the proper
7240 command. You must be prepared to do the ~name expansion yourself.
7241 The standard distribution will put nothing in this directory.
7242 After perl has been installed, users may install their own local
7243 html pages in this directory with MakeMaker Makefile.PL or
7244 equivalent. See "INSTALL" for details.
7245 "sitehtml1direxp"
7247 From sitehtml1dir.U:
7248 This variable is the same as the sitehtml1dir variable, but is
7250 filename expanded at configuration time, for convenient use in
7251 makefiles.
7252 "sitehtml3dir"
7254 From sitehtml3dir.U:
7255 This variable contains the name of the directory in which site-
7257 specific library html source pages are to be put. It is the
7258 responsibility of the Makefile.SH to get the value of this into the
7259 proper command. You must be prepared to do the ~name expansion
7260 yourself. The standard distribution will put nothing in this
7261 directory. After perl has been installed, users may install their
7262 own local library html pages in this directory with MakeMaker
7263 Makefile.PL or equivalent. See "INSTALL" for details.
7264 "sitehtml3direxp"
7266 From sitehtml3dir.U:
7267 This variable is the same as the sitehtml3dir variable, but is
7269 filename expanded at configuration time, for convenient use in
7270 makefiles.
7271 "sitelib"
7273 From sitelib.U:
7274 This variable contains the eventual value of the "SITELIB" symbol,
7276 which is the name of the private library for this package. It may
7277 have a ~ on the front. It is up to the makefile to eventually
7278 create this directory while performing installation (with ~
7279 substitution). The standard distribution will put nothing in this
7280 directory. After perl has been installed, users may install their
7281 own local architecture-independent modules in this directory with
7282 MakeMaker Makefile.PL or equivalent. See "INSTALL" for details.
7283 "sitelib_stem"
7285 From sitelib.U:
7286 This variable is $sitelibexp with any trailing version-specific
7288 component removed. The elements in inc_version_list
7289 (inc_version_list.U) can be tacked onto this variable to generate a
7290 list of directories to search.
7291 "sitelibexp"
7293 From sitelib.U:
7294 This variable is the ~name expanded version of sitelib, so that you
7296 may use it directly in Makefiles or shell scripts.
7297 "siteman1dir"
7299 From siteman1dir.U:
7300 This variable contains the name of the directory in which site-
7302 specific manual source pages are to be put. It is the
7303 responsibility of the Makefile.SH to get the value of this into the
7304 proper command. You must be prepared to do the ~name expansion
7305 yourself. The standard distribution will put nothing in this
7306 directory. After perl has been installed, users may install their
7307 own local man1 pages in this directory with MakeMaker Makefile.PL
7308 or equivalent. See "INSTALL" for details.
7309 "siteman1direxp"
7311 From siteman1dir.U:
7312 This variable is the same as the siteman1dir variable, but is
7314 filename expanded at configuration time, for convenient use in
7315 makefiles.
7316 "siteman3dir"
7318 From siteman3dir.U:
7319 This variable contains the name of the directory in which site-
7321 specific library man source pages are to be put. It is the
7322 responsibility of the Makefile.SH to get the value of this into the
7323 proper command. You must be prepared to do the ~name expansion
7324 yourself. The standard distribution will put nothing in this
7325 directory. After perl has been installed, users may install their
7326 own local man3 pages in this directory with MakeMaker Makefile.PL
7327 or equivalent. See "INSTALL" for details.
7328 "siteman3direxp"
7330 From siteman3dir.U:
7331 This variable is the same as the siteman3dir variable, but is
7333 filename expanded at configuration time, for convenient use in
7334 makefiles.
7335 "siteprefix"
7337 From siteprefix.U:
7338 This variable holds the full absolute path of the directory below
7340 which the user will install add-on packages. See "INSTALL" for
7341 usage and examples.
7342 "siteprefixexp"
7344 From siteprefix.U:
7345 This variable holds the full absolute path of the directory below
7347 which the user will install add-on packages. Derived from
7348 siteprefix.
7349 "sitescript"
7351 From sitescript.U:
7352 This variable holds the name of the directory in which the user
7354 wants to put add-on publicly executable files for the package in
7355 question. It is most often a local directory such as
7356 /usr/local/bin. Programs using this variable must be prepared to
7357 deal with ~name substitution. The standard distribution will put
7358 nothing in this directory. After perl has been installed, users
7359 may install their own local scripts in this directory with
7360 MakeMaker Makefile.PL or equivalent. See "INSTALL" for details.
7361 "sitescriptexp"
7363 From sitescript.U:
7364 This is the same as the sitescript variable, but is filename
7366 expanded at configuration time, for use in your makefiles.
7367 "sizesize"
7369 From sizesize.U:
7370 This variable contains the size of a sizetype in bytes.
7372 "sizetype"
7374 From sizetype.U:
7375 This variable defines sizetype to be something like size_t,
7377 unsigned long, or whatever type is used to declare length
7378 parameters for string functions.
7379 "sleep"
7381 From Loc.U:
7382 This variable is defined but not used by Configure. The value is
7384 the empty string and is not useful.
7385 "sLOCALTIME_max"
7387 From time_size.U:
7388 This variable defines the maximum value of the time_t offset that
7390 the system function localtime () accepts
7391 "sLOCALTIME_min"
7393 From time_size.U:
7394 This variable defines the minimum value of the time_t offset that
7396 the system function localtime () accepts
7397 "smail"
7399 From Loc.U:
7400 This variable is defined but not used by Configure. The value is
7402 the empty string and is not useful.
7403 "so"
7405 From so.U:
7406 This variable holds the extension used to identify shared libraries
7408 (also known as shared objects) on the system. Usually set to "so".
7409 "sockethdr"
7411 From d_socket.U:
7412 This variable has any cpp "-I" flags needed for socket support.
7414 "socketlib"
7416 From d_socket.U:
7417 This variable has the names of any libraries needed for socket
7419 support.
7420 "socksizetype"
7422 From socksizetype.U:
7423 This variable holds the type used for the size argument for various
7425 socket calls like accept. Usual values include socklen_t, size_t,
7426 and int.
7427 "sort"
7429 From Loc.U:
7430 This variable is used internally by Configure to determine the full
7432 pathname (if any) of the sort program. After Configure runs, the
7433 value is reset to a plain "sort" and is not useful.
7434 "spackage"
7436 From package.U:
7437 This variable contains the name of the package being constructed,
7439 with the first letter uppercased, i.e. suitable for starting
7440 sentences.
7441 "spitshell"
7443 From spitshell.U:
7444 This variable contains the command necessary to spit out a runnable
7446 shell on this system. It is either cat or a grep "-v" for #
7447 comments.
7448 "sPRId64"
7450 From quadfio.U:
7451 This variable, if defined, contains the string used by stdio to
7453 format 64-bit decimal numbers (format "d") for output.
7454 "sPRIeldbl"
7456 From longdblfio.U:
7457 This variable, if defined, contains the string used by stdio to
7459 format long doubles (format "e") for output.
7460 "sPRIEUldbl"
7462 From longdblfio.U:
7463 This variable, if defined, contains the string used by stdio to
7465 format long doubles (format "E") for output. The "U" in the name
7466 is to separate this from sPRIeldbl so that even case-blind systems
7467 can see the difference.
7468 "sPRIfldbl"
7470 From longdblfio.U:
7471 This variable, if defined, contains the string used by stdio to
7473 format long doubles (format "f") for output.
7474 "sPRIFUldbl"
7476 From longdblfio.U:
7477 This variable, if defined, contains the string used by stdio to
7479 format long doubles (format "F") for output. The "U" in the name
7480 is to separate this from sPRIfldbl so that even case-blind systems
7481 can see the difference.
7482 "sPRIgldbl"
7484 From longdblfio.U:
7485 This variable, if defined, contains the string used by stdio to
7487 format long doubles (format "g") for output.
7488 "sPRIGUldbl"
7490 From longdblfio.U:
7491 This variable, if defined, contains the string used by stdio to
7493 format long doubles (format "G") for output. The "U" in the name
7494 is to separate this from sPRIgldbl so that even case-blind systems
7495 can see the difference.
7496 "sPRIi64"
7498 From quadfio.U:
7499 This variable, if defined, contains the string used by stdio to
7501 format 64-bit decimal numbers (format "i") for output.
7502 "sPRIo64"
7504 From quadfio.U:
7505 This variable, if defined, contains the string used by stdio to
7507 format 64-bit octal numbers (format "o") for output.
7508 "sPRIu64"
7510 From quadfio.U:
7511 This variable, if defined, contains the string used by stdio to
7513 format 64-bit unsigned decimal numbers (format "u") for output.
7514 "sPRIx64"
7516 From quadfio.U:
7517 This variable, if defined, contains the string used by stdio to
7519 format 64-bit hexadecimal numbers (format "x") for output.
7520 "sPRIXU64"
7522 From quadfio.U:
7523 This variable, if defined, contains the string used by stdio to
7525 format 64-bit hExADECimAl numbers (format "X") for output. The "U"
7526 in the name is to separate this from sPRIx64 so that even case-
7527 blind systems can see the difference.
7528 "srand48_r_proto"
7530 From d_srand48_r.U:
7531 This variable encodes the prototype of srand48_r. It is zero if
7533 d_srand48_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
7534 of reentr.h if d_srand48_r is defined.
7535 "srandom_r_proto"
7537 From d_srandom_r.U:
7538 This variable encodes the prototype of srandom_r. It is zero if
7540 d_srandom_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
7541 of reentr.h if d_srandom_r is defined.
7542 "src"
7544 From src.U:
7545 This variable holds the (possibly relative) path of the package
7547 source. It is up to the Makefile to use this variable and set
7548 "VPATH" accordingly to find the sources remotely. Use $pkgsrc to
7549 have an absolute path.
7550 "sSCNfldbl"
7552 From longdblfio.U:
7553 This variable, if defined, contains the string used by stdio to
7555 format long doubles (format "f") for input.
7556 "ssizetype"
7558 From ssizetype.U:
7559 This variable defines ssizetype to be something like ssize_t, long
7561 or int. It is used by functions that return a count of bytes or an
7562 error condition. It must be a signed type. We will pick a type
7563 such that sizeof(SSize_t) == sizeof(Size_t).
7564 "st_ino_sign"
7566 From st_ino_def.U:
7567 This variable contains the signedness of struct stat's st_ino. 1
7569 for unsigned, -1 for signed.
7570 "st_ino_size"
7572 From st_ino_def.U:
7573 This variable contains the size of struct stat's st_ino in bytes.
7575 "startperl"
7577 From startperl.U:
7578 This variable contains the string to put on the front of a perl
7580 script to make sure (hopefully) that it runs with perl and not some
7581 shell. Of course, that leading line must be followed by the
7582 classical perl idiom: eval 'exec perl -S $0 ${1+$@}' if
7583 $running_under_some_shell; to guarantee perl startup should the
7584 shell execute the script. Note that this magic incantation is not
7585 understood by csh.
7586 "startsh"
7588 From startsh.U:
7589 This variable contains the string to put on the front of a shell
7591 script to make sure (hopefully) that it runs with sh and not some
7592 other shell.
7593 "static_ext"
7595 From Extensions.U:
7596 This variable holds a list of "XS" extension files we want to link
7598 statically into the package. It is used by Makefile.
7599 "stdchar"
7601 From stdchar.U:
7602 This variable conditionally defines "STDCHAR" to be the type of
7604 char used in stdio.h. It has the values "unsigned char" or "char".
7605 "stdio_base"
7607 From d_stdstdio.U:
7608 This variable defines how, given a "FILE" pointer, fp, to access
7610 the _base field (or equivalent) of stdio.h's "FILE" structure.
7611 This will be used to define the macro FILE_base(fp).
7612 "stdio_bufsiz"
7614 From d_stdstdio.U:
7615 This variable defines how, given a "FILE" pointer, fp, to determine
7617 the number of bytes store in the I/O buffer pointer to by the _base
7618 field (or equivalent) of stdio.h's "FILE" structure. This will be
7619 used to define the macro FILE_bufsiz(fp).
7620 "stdio_cnt"
7622 From d_stdstdio.U:
7623 This variable defines how, given a "FILE" pointer, fp, to access
7625 the _cnt field (or equivalent) of stdio.h's "FILE" structure. This
7626 will be used to define the macro FILE_cnt(fp).
7627 "stdio_filbuf"
7629 From d_stdstdio.U:
7630 This variable defines how, given a "FILE" pointer, fp, to tell
7632 stdio to refill its internal buffers (?). This will be used to
7633 define the macro FILE_filbuf(fp).
7634 "stdio_ptr"
7636 From d_stdstdio.U:
7637 This variable defines how, given a "FILE" pointer, fp, to access
7639 the _ptr field (or equivalent) of stdio.h's "FILE" structure. This
7640 will be used to define the macro FILE_ptr(fp).
7641 "stdio_stream_array"
7643 From stdio_streams.U:
7644 This variable tells the name of the array holding the stdio
7646 streams. Usual values include _iob, __iob, and __sF.
7647 "strerror_r_proto"
7649 From d_strerror_r.U:
7650 This variable encodes the prototype of strerror_r. It is zero if
7652 d_strerror_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7653 macros of reentr.h if d_strerror_r is defined.
7654 "submit"
7656 From Loc.U:
7657 This variable is defined but not used by Configure. The value is
7659 the empty string and is not useful.
7660 "subversion"
7662 From patchlevel.U:
7663 The subversion level of this package. The value of subversion
7665 comes from the patchlevel.h file. In a version number such as
7666 5.6.1, this is the 1. In patchlevel.h, this is referred to as
7667 "PERL_SUBVERSION". This is unique to perl.
7668 "sysman"
7670 From sysman.U:
7671 This variable holds the place where the manual is located on this
7673 system. It is not the place where the user wants to put his manual
7674 pages. Rather it is the place where Configure may look to find
7675 manual for unix commands (section 1 of the manual usually). See
7676 mansrc.
7677 "sysroot"
7679 From Sysroot.U:
7680 This variable is empty unless supplied by the Configure user. It
7682 can contain a path to an alternative root directory, under which
7683 headers and libraries for the compilation target can be found. This
7684 is generally used when cross-compiling using a gcc-like compiler.
7685 t
7687 "tail"
7688 From Loc.U:
7689 This variable is defined but not used by Configure. The value is
7691 the empty string and is not useful.
7692 "tar"
7694 From Loc.U:
7695 This variable is defined but not used by Configure. The value is
7697 the empty string and is not useful.
7698 "targetarch"
7700 From Cross.U:
7701 If cross-compiling, this variable contains the target architecture.
7703 If not, this will be empty.
7704 "targetdir"
7706 From Cross.U:
7707 This variable contains a path that will be created on the target
7709 host using targetmkdir, and then used to copy the cross-compiled
7710 executables to. Defaults to /tmp if not set.
7711 "targetenv"
7713 From Cross.U:
7714 If cross-compiling, this variable can be used to modify the
7716 environment on the target system. However, how and where it's
7717 used, and even if it's used at all, is entirely dependent on both
7718 the transport mechanism (targetrun) and what the target system is.
7719 Unless the relevant documentation says otherwise, it is genereally
7720 not useful.
7721 "targethost"
7723 From Cross.U:
7724 This variable contains the name of a separate host machine that can
7726 be used to run compiled test programs and perl tests on. Set to
7727 empty string if not in use.
7728 "targetmkdir"
7730 From Cross.U:
7731 This variable contains the command used by Configure to create a
7733 new directory on the target host.
7734 "targetport"
7736 From Cross.U:
7737 This variable contains the number of a network port to be used to
7739 connect to the host in targethost, if unset defaults to 22 for ssh.
7740 "targetsh"
7742 From sh.U:
7743 If cross-compiling, this variable contains the location of sh on
7745 the target system. If not, this will be the same as $sh.
7746 "tbl"
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 "tee"
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 "test"
7760 From Loc.U:
7761 This variable is used internally by Configure to determine the full
7763 pathname (if any) of the test program. After Configure runs, the
7764 value is reset to a plain "test" and is not useful.
7765 "timeincl"
7767 From i_time.U:
7768 This variable holds the full path of the included time header(s).
7770 "timetype"
7772 From d_time.U:
7773 This variable holds the type returned by time(). It can be long, or
7775 time_t on "BSD" sites (in which case <sys/types.h> should be
7776 included). Anyway, the type Time_t should be used.
7777 "tmpnam_r_proto"
7779 From d_tmpnam_r.U:
7780 This variable encodes the prototype of tmpnam_r. It is zero if
7782 d_tmpnam_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
7783 of reentr.h if d_tmpnam_r is defined.
7784 "to"
7786 From Cross.U:
7787 This variable contains the command used by Configure to copy to
7789 from the target host. Useful and available only during Perl build.
7790 The string ":" if not cross-compiling.
7791 "touch"
7793 From Loc.U:
7794 This variable is used internally by Configure to determine the full
7796 pathname (if any) of the touch program. After Configure runs, the
7797 value is reset to a plain "touch" and is not useful.
7798 "tr"
7800 From Loc.U:
7801 This variable is used internally by Configure to determine the full
7803 pathname (if any) of the tr program. After Configure runs, the
7804 value is reset to a plain "tr" and is not useful.
7805 "trnl"
7807 From trnl.U:
7808 This variable contains the value to be passed to the tr(1) command
7810 to transliterate a newline. Typical values are "\012" and "\n".
7811 This is needed for "EBCDIC" systems where newline is not
7812 necessarily "\012".
7813 "troff"
7815 From Loc.U:
7816 This variable is defined but not used by Configure. The value is
7818 the empty string and is not useful.
7819 "ttyname_r_proto"
7821 From d_ttyname_r.U:
7822 This variable encodes the prototype of ttyname_r. It is zero if
7824 d_ttyname_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
7825 of reentr.h if d_ttyname_r is defined.
7826 u
7828 "u16size"
7829 From perlxv.U:
7830 This variable is the size of an U16 in bytes.
7832 "u16type"
7834 From perlxv.U:
7835 This variable contains the C type used for Perl's U16.
7837 "u32size"
7839 From perlxv.U:
7840 This variable is the size of an U32 in bytes.
7842 "u32type"
7844 From perlxv.U:
7845 This variable contains the C type used for Perl's U32.
7847 "u64size"
7849 From perlxv.U:
7850 This variable is the size of an U64 in bytes.
7852 "u64type"
7854 From perlxv.U:
7855 This variable contains the C type used for Perl's U64.
7857 "u8size"
7859 From perlxv.U:
7860 This variable is the size of an U8 in bytes.
7862 "u8type"
7864 From perlxv.U:
7865 This variable contains the C type used for Perl's U8.
7867 "uidformat"
7869 From uidf.U:
7870 This variable contains the format string used for printing a Uid_t.
7872 "uidsign"
7874 From uidsign.U:
7875 This variable contains the signedness of a uidtype. 1 for
7877 unsigned, -1 for signed.
7878 "uidsize"
7880 From uidsize.U:
7881 This variable contains the size of a uidtype in bytes.
7883 "uidtype"
7885 From uidtype.U:
7886 This variable defines Uid_t to be something like uid_t, int,
7888 ushort, or whatever type is used to declare user ids in the kernel.
7889 "uname"
7891 From Loc.U:
7892 This variable is used internally by Configure to determine the full
7894 pathname (if any) of the uname program. After Configure runs, the
7895 value is reset to a plain "uname" and is not useful.
7896 "uniq"
7898 From Loc.U:
7899 This variable is used internally by Configure to determine the full
7901 pathname (if any) of the uniq program. After Configure runs, the
7902 value is reset to a plain "uniq" and is not useful.
7903 "uquadtype"
7905 From quadtype.U:
7906 This variable defines Uquad_t to be something like unsigned long,
7908 unsigned int, unsigned long long, uint64_t, or whatever type is
7909 used for 64-bit integers.
7910 "use5005threads"
7912 From usethreads.U:
7913 This variable conditionally defines the USE_5005THREADS symbol, and
7915 indicates that Perl should be built to use the 5.005-based
7916 threading implementation. Only valid up to 5.8.x.
7917 "use64bitall"
7919 From use64bits.U:
7920 This variable conditionally defines the USE_64_BIT_ALL symbol, and
7922 indicates that 64-bit integer types should be used when available.
7923 The maximal possible 64-bitness is employed: LP64 or ILP64, meaning
7924 that you will be able to use more than 2 gigabytes of memory. This
7925 mode is even more binary incompatible than USE_64_BIT_INT. You may
7926 not be able to run the resulting executable in a 32-bit "CPU" at
7927 all or you may need at least to reboot your "OS" to 64-bit mode.
7928 "use64bitint"
7930 From use64bits.U:
7931 This variable conditionally defines the USE_64_BIT_INT symbol, and
7933 indicates that 64-bit integer types should be used when available.
7934 The minimal possible 64-bitness is employed, just enough to get
7935 64-bit integers into Perl. This may mean using for example "long
7936 longs", while your memory may still be limited to 2 gigabytes.
7937 "usecbacktrace"
7939 From usebacktrace.U:
7940 This variable indicates whether we are compiling with backtrace
7942 support.
7943 "usecrosscompile"
7945 From Cross.U:
7946 This variable conditionally defines the "USE_CROSS_COMPILE" symbol,
7948 and indicates that Perl has been cross-compiled.
7949 "usedevel"
7951 From Devel.U:
7952 This variable indicates that Perl was configured with development
7954 features enabled. This should not be done for production builds.
7955 "usedl"
7957 From dlsrc.U:
7958 This variable indicates if the system supports dynamic loading of
7960 some sort. See also dlsrc and dlobj.
7961 "usedtrace"
7963 From usedtrace.U:
7964 This variable indicates whether we are compiling with dtrace
7966 support. See also dtrace.
7967 "usefaststdio"
7969 From usefaststdio.U:
7970 This variable conditionally defines the "USE_FAST_STDIO" symbol,
7972 and indicates that Perl should be built to use "fast stdio".
7973 Defaults to define in Perls 5.8 and earlier, to undef later.
7974 "useithreads"
7976 From usethreads.U:
7977 This variable conditionally defines the "USE_ITHREADS" symbol, and
7979 indicates that Perl should be built to use the interpreter-based
7980 threading implementation.
7981 "usekernprocpathname"
7983 From usekernprocpathname.U:
7984 This variable, indicates that we can use sysctl with
7986 "KERN_PROC_PATHNAME" to get a full path for the executable, and
7987 hence convert $^X to an absolute path.
7988 "uselanginfo"
7990 From Extensions.U:
7991 This variable holds either "true" or "false" to indicate whether
7993 the I18N::Langinfo extension should be used. The sole use for this
7994 currently is to allow an easy mechanism for users to skip this
7995 extension from the Configure command line.
7996 "uselargefiles"
7998 From uselfs.U:
7999 This variable conditionally defines the "USE_LARGE_FILES" symbol,
8001 and indicates that large file interfaces should be used when
8002 available.
8003 "uselongdouble"
8005 From uselongdbl.U:
8006 This variable conditionally defines the "USE_LONG_DOUBLE" symbol,
8008 and indicates that long doubles should be used when available.
8009 "usemallocwrap"
8011 From mallocsrc.U:
8012 This variable contains y if we are wrapping malloc to prevent
8014 integer overflow during size calculations.
8015 "usemorebits"
8017 From usemorebits.U:
8018 This variable conditionally defines the "USE_MORE_BITS" symbol, and
8020 indicates that explicit 64-bit interfaces and long doubles should
8021 be used when available.
8022 "usemultiplicity"
8024 From usemultiplicity.U:
8025 This variable conditionally defines the "MULTIPLICITY" symbol, and
8027 indicates that Perl should be built to use multiplicity.
8028 "usemymalloc"
8030 From mallocsrc.U:
8031 This variable contains y if the malloc that comes with this package
8033 is desired over the system's version of malloc. People often
8034 include special versions of malloc for efficiency, but such
8035 versions are often less portable. See also mallocsrc and
8036 mallocobj. If this is "y", then -lmalloc is removed from $libs.
8037 "usenm"
8039 From usenm.U:
8040 This variable contains "true" or "false" depending whether the nm
8042 extraction is wanted or not.
8043 "usensgetexecutablepath"
8045 From usensgetexecutablepath.U:
8046 This symbol, if defined, indicates that we can use
8048 _NSGetExecutablePath and realpath to get a full path for the
8049 executable, and hence convert $^X to an absolute path.
8050 "useopcode"
8052 From Extensions.U:
8053 This variable holds either "true" or "false" to indicate whether
8055 the Opcode extension should be used. The sole use for this
8056 currently is to allow an easy mechanism for users to skip the
8057 Opcode extension from the Configure command line.
8058 "useperlio"
8060 From useperlio.U:
8061 This variable conditionally defines the "USE_PERLIO" symbol, and
8063 indicates that the PerlIO abstraction should be used throughout.
8064 "useposix"
8066 From Extensions.U:
8067 This variable holds either "true" or "false" to indicate whether
8069 the "POSIX" extension should be used. The sole use for this
8070 currently is to allow an easy mechanism for hints files to indicate
8071 that "POSIX" will not compile on a particular system.
8072 "usequadmath"
8074 From usequadmath.U:
8075 This variable conditionally defines the "USE_QUADMATH" symbol, and
8077 indicates that the quadmath library __float128 long doubles should
8078 be used when available.
8079 "usereentrant"
8081 From usethreads.U:
8082 This variable conditionally defines the "USE_REENTRANT_API" symbol,
8084 which indicates that the thread code may try to use the various _r
8085 versions of library functions. This is only potentially meaningful
8086 if usethreads is set and is very experimental, it is not even
8087 prompted for.
8088 "userelocatableinc"
8090 From bin.U:
8091 This variable is set to true to indicate that perl should relocate
8093 @"INC" entries at runtime based on the path to the perl binary.
8094 Any @"INC" paths starting .../ are relocated relative to the
8095 directory containing the perl binary, and a logical cleanup of the
8096 path is then made around the join point (removing dir/../ pairs)
8097 "useshrplib"
8099 From libperl.U:
8100 This variable is set to "true" if the user wishes to build a shared
8102 libperl, and "false" otherwise.
8103 "usesitecustomize"
8105 From d_sitecustomize.U:
8106 This variable is set to true when the user requires a mechanism
8108 that allows the sysadmin to add entries to @"INC" at runtime. This
8109 variable being set, makes perl run $sitelib/sitecustomize.pl at
8110 startup.
8111 "usesocks"
8113 From usesocks.U:
8114 This variable conditionally defines the "USE_SOCKS" symbol, and
8116 indicates that Perl should be built to use "SOCKS".
8117 "usethreads"
8119 From usethreads.U:
8120 This variable conditionally defines the "USE_THREADS" symbol, and
8122 indicates that Perl should be built to use threads.
8123 "usevendorprefix"
8125 From vendorprefix.U:
8126 This variable tells whether the vendorprefix and consequently other
8128 vendor* paths are in use.
8129 "useversionedarchname"
8131 From archname.U:
8132 This variable indicates whether to include the $api_versionstring
8134 as a component of the $archname.
8135 "usevfork"
8137 From d_vfork.U:
8138 This variable is set to true when the user accepts to use vfork.
8140 It is set to false when no vfork is available or when the user
8141 explicitly requests not to use vfork.
8142 "usrinc"
8144 From usrinc.U:
8145 This variable holds the path of the include files, which is usually
8147 /usr/include. It is mainly used by other Configure units.
8148 "uuname"
8150 From Loc.U:
8151 This variable is defined but not used by Configure. The value is
8153 the empty string and is not useful.
8154 "uvoformat"
8156 From perlxvf.U:
8157 This variable contains the format string used for printing a Perl
8159 "UV" as an unsigned octal integer.
8160 "uvsize"
8162 From perlxv.U:
8163 This variable is the size of a "UV" in bytes.
8165 "uvtype"
8167 From perlxv.U:
8168 This variable contains the C type used for Perl's "UV".
8170 "uvuformat"
8172 From perlxvf.U:
8173 This variable contains the format string used for printing a Perl
8175 "UV" as an unsigned decimal integer.
8176 "uvxformat"
8178 From perlxvf.U:
8179 This variable contains the format string used for printing a Perl
8181 "UV" as an unsigned hexadecimal integer in lowercase abcdef.
8182 "uvXUformat"
8184 From perlxvf.U:
8185 This variable contains the format string used for printing a Perl
8187 "UV" as an unsigned hexadecimal integer in uppercase "ABCDEF".
8188 v
8190 "vendorarch"
8191 From vendorarch.U:
8192 This variable contains the value of the "PERL_VENDORARCH" symbol.
8194 It may have a ~ on the front. The standard distribution will put
8195 nothing in this directory. Vendors who distribute perl may wish to
8196 place their own architecture-dependent modules and extensions in
8197 this directory with MakeMaker Makefile.PL "INSTALLDIRS"=vendor or
8198 equivalent. See "INSTALL" for details.
8199 "vendorarchexp"
8201 From vendorarch.U:
8202 This variable is the ~name expanded version of vendorarch, so that
8204 you may use it directly in Makefiles or shell scripts.
8205 "vendorbin"
8207 From vendorbin.U:
8208 This variable contains the eventual value of the "VENDORBIN"
8210 symbol. It may have a ~ on the front. The standard distribution
8211 will put nothing in this directory. Vendors who distribute perl
8212 may wish to place additional binaries in this directory with
8213 MakeMaker Makefile.PL "INSTALLDIRS"=vendor or equivalent. See
8214 "INSTALL" for details.
8215 "vendorbinexp"
8217 From vendorbin.U:
8218 This variable is the ~name expanded version of vendorbin, so that
8220 you may use it directly in Makefiles or shell scripts.
8221 "vendorhtml1dir"
8223 From vendorhtml1dir.U:
8224 This variable contains the name of the directory for html pages.
8226 It may have a ~ on the front. The standard distribution will put
8227 nothing in this directory. Vendors who distribute perl may wish to
8228 place their own html pages in this directory with MakeMaker
8229 Makefile.PL "INSTALLDIRS"=vendor or equivalent. See "INSTALL" for
8230 details.
8231 "vendorhtml1direxp"
8233 From vendorhtml1dir.U:
8234 This variable is the ~name expanded version of vendorhtml1dir, so
8236 that you may use it directly in Makefiles or shell scripts.
8237 "vendorhtml3dir"
8239 From vendorhtml3dir.U:
8240 This variable contains the name of the directory for html library
8242 pages. It may have a ~ on the front. The standard distribution
8243 will put nothing in this directory. Vendors who distribute perl
8244 may wish to place their own html pages for modules and extensions
8245 in this directory with MakeMaker Makefile.PL "INSTALLDIRS"=vendor
8246 or equivalent. See "INSTALL" for details.
8247 "vendorhtml3direxp"
8249 From vendorhtml3dir.U:
8250 This variable is the ~name expanded version of vendorhtml3dir, so
8252 that you may use it directly in Makefiles or shell scripts.
8253 "vendorlib"
8255 From vendorlib.U:
8256 This variable contains the eventual value of the "VENDORLIB"
8258 symbol, which is the name of the private library for this package.
8259 The standard distribution will put nothing in this directory.
8260 Vendors who distribute perl may wish to place their own modules in
8261 this directory with MakeMaker Makefile.PL "INSTALLDIRS"=vendor or
8262 equivalent. See "INSTALL" for details.
8263 "vendorlib_stem"
8265 From vendorlib.U:
8266 This variable is $vendorlibexp with any trailing version-specific
8268 component removed. The elements in inc_version_list
8269 (inc_version_list.U) can be tacked onto this variable to generate a
8270 list of directories to search.
8271 "vendorlibexp"
8273 From vendorlib.U:
8274 This variable is the ~name expanded version of vendorlib, so that
8276 you may use it directly in Makefiles or shell scripts.
8277 "vendorman1dir"
8279 From vendorman1dir.U:
8280 This variable contains the name of the directory for man1 pages.
8282 It may have a ~ on the front. The standard distribution will put
8283 nothing in this directory. Vendors who distribute perl may wish to
8284 place their own man1 pages in this directory with MakeMaker
8285 Makefile.PL "INSTALLDIRS"=vendor or equivalent. See "INSTALL" for
8286 details.
8287 "vendorman1direxp"
8289 From vendorman1dir.U:
8290 This variable is the ~name expanded version of vendorman1dir, so
8292 that you may use it directly in Makefiles or shell scripts.
8293 "vendorman3dir"
8295 From vendorman3dir.U:
8296 This variable contains the name of the directory for man3 pages.
8298 It may have a ~ on the front. The standard distribution will put
8299 nothing in this directory. Vendors who distribute perl may wish to
8300 place their own man3 pages in this directory with MakeMaker
8301 Makefile.PL "INSTALLDIRS"=vendor or equivalent. See "INSTALL" for
8302 details.
8303 "vendorman3direxp"
8305 From vendorman3dir.U:
8306 This variable is the ~name expanded version of vendorman3dir, so
8308 that you may use it directly in Makefiles or shell scripts.
8309 "vendorprefix"
8311 From vendorprefix.U:
8312 This variable holds the full absolute path of the directory below
8314 which the vendor will install add-on packages. See "INSTALL" for
8315 usage and examples.
8316 "vendorprefixexp"
8318 From vendorprefix.U:
8319 This variable holds the full absolute path of the directory below
8321 which the vendor will install add-on packages. Derived from
8322 vendorprefix.
8323 "vendorscript"
8325 From vendorscript.U:
8326 This variable contains the eventual value of the "VENDORSCRIPT"
8328 symbol. It may have a ~ on the front. The standard distribution
8329 will put nothing in this directory. Vendors who distribute perl
8330 may wish to place additional executable scripts in this directory
8331 with MakeMaker Makefile.PL "INSTALLDIRS"=vendor or equivalent. See
8332 "INSTALL" for details.
8333 "vendorscriptexp"
8335 From vendorscript.U:
8336 This variable is the ~name expanded version of vendorscript, so
8338 that you may use it directly in Makefiles or shell scripts.
8339 "version"
8341 From patchlevel.U:
8342 The full version number of this package, such as 5.6.1 (or 5_6_1).
8344 This combines revision, patchlevel, and subversion to get the full
8345 version number, including any possible subversions. This is
8346 suitable for use as a directory name, and hence is filesystem
8347 dependent.
8348 "version_patchlevel_string"
8350 From patchlevel.U:
8351 This is a string combining version, subversion and perl_patchlevel
8353 (if perl_patchlevel is non-zero). It is typically something like
8354 'version 7 subversion 1' or 'version 7 subversion 1 patchlevel
8355 11224' It is computed here to avoid duplication of code in
8356 myconfig.SH and lib/Config.pm.
8357 "versiononly"
8359 From versiononly.U:
8360 If set, this symbol indicates that only the version-specific
8362 components of a perl installation should be installed. This may be
8363 useful for making a test installation of a new version without
8364 disturbing the existing installation. Setting versiononly is
8365 equivalent to setting installperl's -v option. In particular, the
8366 non-versioned scripts and programs such as a2p, c2ph, h2xs, pod2*,
8367 and perldoc are not installed (see "INSTALL" for a more complete
8368 list). Nor are the man pages installed. Usually, this is undef.
8369 "vi"
8371 From Loc.U:
8372 This variable is defined but not used by Configure. The value is
8374 the empty string and is not useful.
8375 x
8377 "xlibpth"
8378 From libpth.U:
8379 This variable holds extra path (space-separated) used to find
8381 libraries on this platform, for example "CPU"-specific libraries
8382 (on multi-"CPU" platforms) may be listed here.
8383 y
8385 "yacc"
8386 From yacc.U:
8387 This variable holds the name of the compiler compiler we want to
8389 use in the Makefile. It can be yacc, byacc, or bison -y.
8390 "yaccflags"
8392 From yacc.U:
8393 This variable contains any additional yacc flags desired by the
8395 user. It is up to the Makefile to use this.
8396 z
8398 "zcat"
8399 From Loc.U:
8400 This variable is defined but not used by Configure. The value is
8402 the empty string and is not useful.
8403 "zip"
8405 From Loc.U:
8406 This variable is used internally by Configure to determine the full
8408 pathname (if any) of the zip program. After Configure runs, the
8409 value is reset to a plain "zip" and is not useful.
8410
8412 Information on the git commit from which the current perl binary was
8413 compiled can be found in the variable $Config::Git_Data. The variable
8414 is a structured string that looks something like this:
8415 git_commit_id='ea0c2dbd5f5ac6845ecc7ec6696415bf8e27bd52'
8417 git_describe='GitLive-blead-1076-gea0c2db'
8418 git_branch='smartmatch'
8419 git_uncommitted_changes=''
8420 git_commit_id_title='Commit id:'
8421 git_commit_date='2009-05-09 17:47:31 +0200'
8422 Its format is not guaranteed not to change over time.
8424
8426 This module contains a good example of how to use tie to implement a
8427 cache and an example of how to make a tied variable readonly to those
8428 outside of it.
8429perl v5.32.1 2021-05-31 Config(3pm)