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 patern matching (usally on "BSD"). If so, it is likely
3139 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 patern matching (usally 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 patern matching (usally on POSIX.2 conforming systems).
3193 "d_remainder"
3195 From d_remainder.U:
3196 This variable conditionally defines the "HAS_REMAINDER" symbol,
3198 which indicates to the C program that the remainder() routine is
3199 available.
3200 "d_remquo"
3202 From d_remquo.U:
3203 This variable conditionally defines the "HAS_REMQUO" symbol, which
3205 indicates to the C program that the remquo() routine is available.
3206 "d_rename"
3208 From d_rename.U:
3209 This variable conditionally defines the "HAS_RENAME" symbol, which
3211 indicates to the C program that the rename() routine is available
3212 to rename files.
3213 "d_renameat"
3215 From d_fsat.U:
3216 This variable conditionally defines the "HAS_RENAMEAT" symbol,
3218 which indicates the "POSIX" renameat() function is available.
3219 "d_rewinddir"
3221 From d_readdir.U:
3222 This variable conditionally defines "HAS_REWINDDIR" if rewinddir()
3224 is available.
3225 "d_rint"
3227 From d_rint.U:
3228 This variable conditionally defines the "HAS_RINT" symbol, which
3230 indicates to the C program that the rint() routine is available.
3231 "d_rmdir"
3233 From d_rmdir.U:
3234 This variable conditionally defines "HAS_RMDIR" if rmdir() is
3236 available to remove directories.
3237 "d_round"
3239 From d_round.U:
3240 This variable conditionally defines the "HAS_ROUND" symbol, which
3242 indicates to the C program that the round() routine is available.
3243 "d_sbrkproto"
3245 From d_sbrkproto.U:
3246 This variable conditionally defines the "HAS_SBRK_PROTO" symbol,
3248 which indicates to the C program that the system provides a
3249 prototype for the sbrk() function. Otherwise, it is up to the
3250 program to supply one.
3251 "d_scalbn"
3253 From d_scalbn.U:
3254 This variable conditionally defines the "HAS_SCALBN" symbol, which
3256 indicates to the C program that the scalbn() routine is available.
3257 "d_scalbnl"
3259 From d_scalbnl.U:
3260 This variable conditionally defines the "HAS_SCALBNL" symbol, which
3262 indicates to the C program that the scalbnl() routine is available.
3263 If ilogbl is also present we can emulate frexpl.
3264 "d_sched_yield"
3266 From d_pthread_y.U:
3267 This variable conditionally defines the "HAS_SCHED_YIELD" symbol if
3269 the sched_yield routine is available to yield the execution of the
3270 current thread.
3271 "d_scm_rights"
3273 From d_socket.U:
3274 This variable conditionally defines the "HAS_SCM_RIGHTS" symbol,
3276 which indicates that the "SCM_RIGHTS" is available. #ifdef is not
3277 enough because it may be an enum, glibc has been known to do this.
3278 "d_SCNfldbl"
3280 From longdblfio.U:
3281 This variable conditionally defines the PERL_PRIfldbl symbol, which
3283 indicates that stdio has a symbol to scan long doubles.
3284 "d_seekdir"
3286 From d_readdir.U:
3287 This variable conditionally defines "HAS_SEEKDIR" if seekdir() is
3289 available.
3290 "d_select"
3292 From d_select.U:
3293 This variable conditionally defines "HAS_SELECT" if select() is
3295 available to select active file descriptors. A <sys/time.h>
3296 inclusion may be necessary for the timeout field.
3297 "d_sem"
3299 From d_sem.U:
3300 This variable conditionally defines the "HAS_SEM" symbol, which
3302 indicates that the entire sem*(2) library is present.
3303 "d_semctl"
3305 From d_semctl.U:
3306 This variable conditionally defines the "HAS_SEMCTL" symbol, which
3308 indicates to the C program that the semctl() routine is available.
3309 "d_semctl_semid_ds"
3311 From d_union_semun.U:
3312 This variable conditionally defines "USE_SEMCTL_SEMID_DS", which
3314 indicates that struct semid_ds * is to be used for semctl
3315 "IPC_STAT".
3316 "d_semctl_semun"
3318 From d_union_semun.U:
3319 This variable conditionally defines "USE_SEMCTL_SEMUN", which
3321 indicates that union semun is to be used for semctl "IPC_STAT".
3322 "d_semget"
3324 From d_semget.U:
3325 This variable conditionally defines the "HAS_SEMGET" symbol, which
3327 indicates to the C program that the semget() routine is available.
3328 "d_semop"
3330 From d_semop.U:
3331 This variable conditionally defines the "HAS_SEMOP" symbol, which
3333 indicates to the C program that the semop() routine is available.
3334 "d_sendmsg"
3336 From d_sendmsg.U:
3337 This variable conditionally defines the "HAS_SENDMSG" symbol, which
3339 indicates to the C program that the sendmsg() routine is available.
3340 "d_setegid"
3342 From d_setegid.U:
3343 This variable conditionally defines the "HAS_SETEGID" symbol, which
3345 indicates to the C program that the setegid() routine is available
3346 to change the effective gid of the current program.
3347 "d_seteuid"
3349 From d_seteuid.U:
3350 This variable conditionally defines the "HAS_SETEUID" symbol, which
3352 indicates to the C program that the seteuid() routine is available
3353 to change the effective uid of the current program.
3354 "d_setgrent"
3356 From d_setgrent.U:
3357 This variable conditionally defines the "HAS_SETGRENT" symbol,
3359 which indicates to the C program that the setgrent() routine is
3360 available for initializing sequential access to the group database.
3361 "d_setgrent_r"
3363 From d_setgrent_r.U:
3364 This variable conditionally defines the "HAS_SETGRENT_R" symbol,
3366 which indicates to the C program that the setgrent_r() routine is
3367 available.
3368 "d_setgrps"
3370 From d_setgrps.U:
3371 This variable conditionally defines the "HAS_SETGROUPS" symbol,
3373 which indicates to the C program that the setgroups() routine is
3374 available to set the list of process groups.
3375 "d_sethent"
3377 From d_sethent.U:
3378 This variable conditionally defines "HAS_SETHOSTENT" if
3380 sethostent() is available.
3381 "d_sethostent_r"
3383 From d_sethostent_r.U:
3384 This variable conditionally defines the "HAS_SETHOSTENT_R" symbol,
3386 which indicates to the C program that the sethostent_r() routine is
3387 available.
3388 "d_setitimer"
3390 From d_setitimer.U:
3391 This variable conditionally defines the "HAS_SETITIMER" symbol,
3393 which indicates to the C program that the setitimer() routine is
3394 available.
3395 "d_setlinebuf"
3397 From d_setlnbuf.U:
3398 This variable conditionally defines the "HAS_SETLINEBUF" symbol,
3400 which indicates to the C program that the setlinebuf() routine is
3401 available to change stderr or stdout from block-buffered or
3402 unbuffered to a line-buffered mode.
3403 "d_setlocale"
3405 From d_setlocale.U:
3406 This variable conditionally defines "HAS_SETLOCALE" if setlocale()
3408 is available to handle locale-specific ctype implementations.
3409 "d_setlocale_accepts_any_locale_name"
3411 From d_setlocale.U:
3412 This variable conditionally defines
3414 "SETLOCALE_ACCEPTS_ANY_LOCALE_NAME" if setlocale() accepts any
3415 locale name.
3416 "d_setlocale_r"
3418 From d_setlocale_r.U:
3419 This variable conditionally defines the "HAS_SETLOCALE_R" symbol,
3421 which indicates to the C program that the setlocale_r() routine is
3422 available.
3423 "d_setnent"
3425 From d_setnent.U:
3426 This variable conditionally defines "HAS_SETNETENT" if setnetent()
3428 is available.
3429 "d_setnetent_r"
3431 From d_setnetent_r.U:
3432 This variable conditionally defines the "HAS_SETNETENT_R" symbol,
3434 which indicates to the C program that the setnetent_r() routine is
3435 available.
3436 "d_setpent"
3438 From d_setpent.U:
3439 This variable conditionally defines "HAS_SETPROTOENT" if
3441 setprotoent() is available.
3442 "d_setpgid"
3444 From d_setpgid.U:
3445 This variable conditionally defines the "HAS_SETPGID" symbol if the
3447 setpgid(pid, gpid) function is available to set process group "ID".
3448 "d_setpgrp"
3450 From d_setpgrp.U:
3451 This variable conditionally defines "HAS_SETPGRP" if setpgrp() is
3453 available to set the current process group.
3454 "d_setpgrp2"
3456 From d_setpgrp2.U:
3457 This variable conditionally defines the HAS_SETPGRP2 symbol, which
3459 indicates to the C program that the setpgrp2() (as in DG/"UX")
3460 routine is available to set the current process group.
3461 "d_setprior"
3463 From d_setprior.U:
3464 This variable conditionally defines "HAS_SETPRIORITY" if
3466 setpriority() is available to set a process's priority.
3467 "d_setproctitle"
3469 From d_setproctitle.U:
3470 This variable conditionally defines the "HAS_SETPROCTITLE" symbol,
3472 which indicates to the C program that the setproctitle() routine is
3473 available.
3474 "d_setprotoent_r"
3476 From d_setprotoent_r.U:
3477 This variable conditionally defines the "HAS_SETPROTOENT_R" symbol,
3479 which indicates to the C program that the setprotoent_r() routine
3480 is available.
3481 "d_setpwent"
3483 From d_setpwent.U:
3484 This variable conditionally defines the "HAS_SETPWENT" symbol,
3486 which indicates to the C program that the setpwent() routine is
3487 available for initializing sequential access to the passwd
3488 database.
3489 "d_setpwent_r"
3491 From d_setpwent_r.U:
3492 This variable conditionally defines the "HAS_SETPWENT_R" symbol,
3494 which indicates to the C program that the setpwent_r() routine is
3495 available.
3496 "d_setregid"
3498 From d_setregid.U:
3499 This variable conditionally defines "HAS_SETREGID" if setregid() is
3501 available to change the real and effective gid of the current
3502 process.
3503 "d_setresgid"
3505 From d_setregid.U:
3506 This variable conditionally defines "HAS_SETRESGID" if setresgid()
3508 is available to change the real, effective and saved gid of the
3509 current process.
3510 "d_setresuid"
3512 From d_setreuid.U:
3513 This variable conditionally defines "HAS_SETREUID" if setresuid()
3515 is available to change the real, effective and saved uid of the
3516 current process.
3517 "d_setreuid"
3519 From d_setreuid.U:
3520 This variable conditionally defines "HAS_SETREUID" if setreuid() is
3522 available to change the real and effective uid of the current
3523 process.
3524 "d_setrgid"
3526 From d_setrgid.U:
3527 This variable conditionally defines the "HAS_SETRGID" symbol, which
3529 indicates to the C program that the setrgid() routine is available
3530 to change the real gid of the current program.
3531 "d_setruid"
3533 From d_setruid.U:
3534 This variable conditionally defines the "HAS_SETRUID" symbol, which
3536 indicates to the C program that the setruid() routine is available
3537 to change the real uid of the current program.
3538 "d_setsent"
3540 From d_setsent.U:
3541 This variable conditionally defines "HAS_SETSERVENT" if
3543 setservent() is available.
3544 "d_setservent_r"
3546 From d_setservent_r.U:
3547 This variable conditionally defines the "HAS_SETSERVENT_R" symbol,
3549 which indicates to the C program that the setservent_r() routine is
3550 available.
3551 "d_setsid"
3553 From d_setsid.U:
3554 This variable conditionally defines "HAS_SETSID" if setsid() is
3556 available to set the process group "ID".
3557 "d_setvbuf"
3559 From d_setvbuf.U:
3560 This variable conditionally defines the "HAS_SETVBUF" symbol, which
3562 indicates to the C program that the setvbuf() routine is available
3563 to change buffering on an open stdio stream.
3564 "d_shm"
3566 From d_shm.U:
3567 This variable conditionally defines the "HAS_SHM" symbol, which
3569 indicates that the entire shm*(2) library is present.
3570 "d_shmat"
3572 From d_shmat.U:
3573 This variable conditionally defines the "HAS_SHMAT" symbol, which
3575 indicates to the C program that the shmat() routine is available.
3576 "d_shmatprototype"
3578 From d_shmat.U:
3579 This variable conditionally defines the "HAS_SHMAT_PROTOTYPE"
3581 symbol, which indicates that sys/shm.h has a prototype for shmat.
3582 "d_shmctl"
3584 From d_shmctl.U:
3585 This variable conditionally defines the "HAS_SHMCTL" symbol, which
3587 indicates to the C program that the shmctl() routine is available.
3588 "d_shmdt"
3590 From d_shmdt.U:
3591 This variable conditionally defines the "HAS_SHMDT" symbol, which
3593 indicates to the C program that the shmdt() routine is available.
3594 "d_shmget"
3596 From d_shmget.U:
3597 This variable conditionally defines the "HAS_SHMGET" symbol, which
3599 indicates to the C program that the shmget() routine is available.
3600 "d_sigaction"
3602 From d_sigaction.U:
3603 This variable conditionally defines the "HAS_SIGACTION" symbol,
3605 which indicates that the Vr4 sigaction() routine is available.
3606 "d_siginfo_si_addr"
3608 From d_siginfo_si.U:
3609 This variable conditionally defines the "HAS_SIGINFO_SI_ADDR"
3611 symbol, which indicates that the siginfo_t struct has the si_addr
3612 member.
3613 "d_siginfo_si_band"
3615 From d_siginfo_si.U:
3616 This variable conditionally defines the "HAS_SIGINFO_SI_BAND"
3618 symbol, which indicates that the siginfo_t struct has the si_band
3619 member.
3620 "d_siginfo_si_errno"
3622 From d_siginfo_si.U:
3623 This variable conditionally defines the "HAS_SIGINFO_SI_ERRNO"
3625 symbol, which indicates that the siginfo_t struct has the si_errno
3626 member.
3627 "d_siginfo_si_fd"
3629 From d_siginfo_si.U:
3630 This variable conditionally defines the "HAS_SIGINFO_SI_FD" symbol,
3632 which indicates that the siginfo_t struct has the si_fd member.
3633 "d_siginfo_si_pid"
3635 From d_siginfo_si.U:
3636 This variable conditionally defines the "HAS_SIGINFO_SI_PID"
3638 symbol, which indicates that the siginfo_t struct has the si_pid
3639 member.
3640 "d_siginfo_si_status"
3642 From d_siginfo_si.U:
3643 This variable conditionally defines the "HAS_SIGINFO_SI_STATUS"
3645 symbol, which indicates that the siginfo_t struct has the si_status
3646 member.
3647 "d_siginfo_si_uid"
3649 From d_siginfo_si.U:
3650 This variable conditionally defines the "HAS_SIGINFO_SI_UID"
3652 symbol, which indicates that the siginfo_t struct has the si_uid
3653 member.
3654 "d_siginfo_si_value"
3656 From d_siginfo_si.U:
3657 This variable conditionally defines the "HAS_SIGINFO_SI_VALUE"
3659 symbol, which indicates that the siginfo_t struct has the si_value
3660 member.
3661 "d_signbit"
3663 From d_signbit.U:
3664 This variable conditionally defines the "HAS_SIGNBIT" symbol, which
3666 indicates to the C program that the signbit() routine is available
3667 and safe to use with perl's intern "NV" type.
3668 "d_sigprocmask"
3670 From d_sigprocmask.U:
3671 This variable conditionally defines "HAS_SIGPROCMASK" if
3673 sigprocmask() is available to examine or change the signal mask of
3674 the calling process.
3675 "d_sigsetjmp"
3677 From d_sigsetjmp.U:
3678 This variable conditionally defines the "HAS_SIGSETJMP" symbol,
3680 which indicates that the sigsetjmp() routine is available to call
3681 setjmp() and optionally save the process's signal mask.
3682 "d_sin6_scope_id"
3684 From d_socket.U:
3685 This variable conditionally defines the HAS_SIN6_SCOPE_ID symbol,
3687 which indicates that a struct sockaddr_in6 structure has the
3688 sin6_scope_id member.
3689 "d_sitearch"
3691 From sitearch.U:
3692 This variable conditionally defines "SITEARCH" to hold the pathname
3694 of architecture-dependent library files for $package. If $sitearch
3695 is the same as $archlib, then this is set to undef.
3696 "d_snprintf"
3698 From d_snprintf.U:
3699 This variable conditionally defines the "HAS_SNPRINTF" symbol,
3701 which indicates to the C program that the snprintf () library
3702 function is available.
3703 "d_sockaddr_in6"
3705 From d_socket.U:
3706 This variable conditionally defines the HAS_SOCKADDR_IN6 symbol,
3708 which indicates the availability of a struct sockaddr_in6.
3709 "d_sockaddr_sa_len"
3711 From d_socket.U:
3712 This variable conditionally defines the "HAS_SOCKADDR_SA_LEN"
3714 symbol, which indicates that a struct sockaddr structure has the
3715 sa_len member.
3716 "d_sockatmark"
3718 From d_sockatmark.U:
3719 This variable conditionally defines the "HAS_SOCKATMARK" symbol,
3721 which indicates to the C program that the sockatmark() routine is
3722 available.
3723 "d_sockatmarkproto"
3725 From d_sockatmarkproto.U:
3726 This variable conditionally defines the "HAS_SOCKATMARK_PROTO"
3728 symbol, which indicates to the C program that the system provides a
3729 prototype for the sockatmark() function. Otherwise, it is up to
3730 the program to supply one.
3731 "d_socket"
3733 From d_socket.U:
3734 This variable conditionally defines "HAS_SOCKET", which indicates
3736 that the "BSD" socket interface is supported.
3737 "d_socklen_t"
3739 From d_socklen_t.U:
3740 This symbol will be defined if the C compiler supports socklen_t.
3742 "d_sockpair"
3744 From d_socket.U:
3745 This variable conditionally defines the "HAS_SOCKETPAIR" symbol,
3747 which indicates that the "BSD" socketpair() is supported.
3748 "d_socks5_init"
3750 From d_socks5_init.U:
3751 This variable conditionally defines the HAS_SOCKS5_INIT symbol,
3753 which indicates to the C program that the socks5_init() routine is
3754 available.
3755 "d_sqrtl"
3757 From d_sqrtl.U:
3758 This variable conditionally defines the "HAS_SQRTL" symbol, which
3760 indicates to the C program that the sqrtl() routine is available.
3761 "d_srand48_r"
3763 From d_srand48_r.U:
3764 This variable conditionally defines the HAS_SRAND48_R symbol, which
3766 indicates to the C program that the srand48_r() routine is
3767 available.
3768 "d_srandom_r"
3770 From d_srandom_r.U:
3771 This variable conditionally defines the "HAS_SRANDOM_R" symbol,
3773 which indicates to the C program that the srandom_r() routine is
3774 available.
3775 "d_sresgproto"
3777 From d_sresgproto.U:
3778 This variable conditionally defines the "HAS_SETRESGID_PROTO"
3780 symbol, which indicates to the C program that the system provides a
3781 prototype for the setresgid() function. Otherwise, it is up to the
3782 program to supply one.
3783 "d_sresuproto"
3785 From d_sresuproto.U:
3786 This variable conditionally defines the "HAS_SETRESUID_PROTO"
3788 symbol, which indicates to the C program that the system provides a
3789 prototype for the setresuid() function. Otherwise, it is up to the
3790 program to supply one.
3791 "d_stat"
3793 From d_stat.U:
3794 This variable conditionally defines "HAS_STAT" if stat() is
3796 available to get file status.
3797 "d_statblks"
3799 From d_statblks.U:
3800 This variable conditionally defines "USE_STAT_BLOCKS" if this
3802 system has a stat structure declaring st_blksize and st_blocks.
3803 "d_statfs_f_flags"
3805 From d_statfs_f_flags.U:
3806 This variable conditionally defines the "HAS_STRUCT_STATFS_F_FLAGS"
3808 symbol, which indicates to struct statfs from has f_flags member.
3809 This kind of struct statfs is coming from sys/mount.h ("BSD"), not
3810 from sys/statfs.h ("SYSV").
3811 "d_statfs_s"
3813 From d_statfs_s.U:
3814 This variable conditionally defines the "HAS_STRUCT_STATFS" symbol,
3816 which indicates that the struct statfs is supported.
3817 "d_static_inline"
3819 From d_static_inline.U:
3820 This variable conditionally defines the "HAS_STATIC_INLINE" symbol,
3822 which indicates that the C compiler supports C99-style static
3823 inline. That is, the function can't be called from another
3824 translation unit.
3825 "d_statvfs"
3827 From d_statvfs.U:
3828 This variable conditionally defines the "HAS_STATVFS" symbol, which
3830 indicates to the C program that the statvfs() routine is available.
3831 "d_stdio_cnt_lval"
3833 From d_stdstdio.U:
3834 This variable conditionally defines "STDIO_CNT_LVALUE" if the
3836 "FILE_cnt" macro can be used as an lvalue.
3837 "d_stdio_ptr_lval"
3839 From d_stdstdio.U:
3840 This variable conditionally defines "STDIO_PTR_LVALUE" if the
3842 "FILE_ptr" macro can be used as an lvalue.
3843 "d_stdio_ptr_lval_nochange_cnt"
3845 From d_stdstdio.U:
3846 This symbol is defined if using the "FILE_ptr" macro as an lvalue
3848 to increase the pointer by n leaves File_cnt(fp) unchanged.
3849 "d_stdio_ptr_lval_sets_cnt"
3851 From d_stdstdio.U:
3852 This symbol is defined if using the "FILE_ptr" macro as an lvalue
3854 to increase the pointer by n has the side effect of decreasing the
3855 value of File_cnt(fp) by n.
3856 "d_stdio_stream_array"
3858 From stdio_streams.U:
3859 This variable tells whether there is an array holding the stdio
3861 streams.
3862 "d_stdiobase"
3864 From d_stdstdio.U:
3865 This variable conditionally defines "USE_STDIO_BASE" if this system
3867 has a "FILE" structure declaring a usable _base field (or
3868 equivalent) in stdio.h.
3869 "d_stdstdio"
3871 From d_stdstdio.U:
3872 This variable conditionally defines "USE_STDIO_PTR" if this system
3874 has a "FILE" structure declaring usable _ptr and _cnt fields (or
3875 equivalent) in stdio.h.
3876 "d_strcoll"
3878 From d_strcoll.U:
3879 This variable conditionally defines "HAS_STRCOLL" if strcoll() is
3881 available to compare strings using collating information.
3882 "d_strerror_l"
3884 From d_strerror_l.U:
3885 This variable conditionally defines the "HAS_STRERROR_L" symbol,
3887 which indicates to the C program that the strerror_l() routine is
3888 available to return the error message for a given errno value in a
3889 particular locale (identified by a locale_t object).
3890 "d_strerror_r"
3892 From d_strerror_r.U:
3893 This variable conditionally defines the "HAS_STRERROR_R" symbol,
3895 which indicates to the C program that the strerror_r() routine is
3896 available.
3897 "d_strftime"
3899 From d_strftime.U:
3900 This variable conditionally defines the "HAS_STRFTIME" symbol,
3902 which indicates to the C program that the strftime() routine is
3903 available.
3904 "d_strlcat"
3906 From d_strlcat.U:
3907 This variable conditionally defines the "HAS_STRLCAT" symbol, which
3909 indicates to the C program that the strlcat () routine is
3910 available.
3911 "d_strlcpy"
3913 From d_strlcpy.U:
3914 This variable conditionally defines the "HAS_STRLCPY" symbol, which
3916 indicates to the C program that the strlcpy () routine is
3917 available.
3918 "d_strnlen"
3920 From d_strnlen.U:
3921 This variable conditionally defines the "HAS_STRNLEN" symbol, which
3923 indicates to the C program that the strnlen () routine is
3924 available.
3925 "d_strtod"
3927 From d_strtod.U:
3928 This variable conditionally defines the "HAS_STRTOD" symbol, which
3930 indicates to the C program that the strtod() routine is available
3931 to provide better numeric string conversion than atof().
3932 "d_strtod_l"
3934 From d_strtod_l.U:
3935 This variable conditionally defines the "HAS_STRTOD_L" symbol,
3937 which indicates to the C program that the strtod_l() routine is
3938 available.
3939 "d_strtol"
3941 From d_strtol.U:
3942 This variable conditionally defines the "HAS_STRTOL" symbol, which
3944 indicates to the C program that the strtol() routine is available
3945 to provide better numeric string conversion than atoi() and
3946 friends.
3947 "d_strtold"
3949 From d_strtold.U:
3950 This variable conditionally defines the "HAS_STRTOLD" symbol, which
3952 indicates to the C program that the strtold() routine is available.
3953 "d_strtold_l"
3955 From d_strtold_l.U:
3956 This variable conditionally defines the "HAS_STRTOLD_L" symbol,
3958 which indicates to the C program that the strtold_l() routine is
3959 available.
3960 "d_strtoll"
3962 From d_strtoll.U:
3963 This variable conditionally defines the "HAS_STRTOLL" symbol, which
3965 indicates to the C program that the strtoll() routine is available.
3966 "d_strtoq"
3968 From d_strtoq.U:
3969 This variable conditionally defines the "HAS_STRTOQ" symbol, which
3971 indicates to the C program that the strtoq() routine is available.
3972 "d_strtoul"
3974 From d_strtoul.U:
3975 This variable conditionally defines the "HAS_STRTOUL" symbol, which
3977 indicates to the C program that the strtoul() routine is available
3978 to provide conversion of strings to unsigned long.
3979 "d_strtoull"
3981 From d_strtoull.U:
3982 This variable conditionally defines the "HAS_STRTOULL" symbol,
3984 which indicates to the C program that the strtoull() routine is
3985 available.
3986 "d_strtouq"
3988 From d_strtouq.U:
3989 This variable conditionally defines the "HAS_STRTOUQ" symbol, which
3991 indicates to the C program that the strtouq() routine is available.
3992 "d_strxfrm"
3994 From d_strxfrm.U:
3995 This variable conditionally defines "HAS_STRXFRM" if strxfrm() is
3997 available to transform strings.
3998 "d_suidsafe"
4000 From d_dosuid.U:
4001 This variable conditionally defines "SETUID_SCRIPTS_ARE_SECURE_NOW"
4003 if setuid scripts can be secure. This test looks in /dev/fd/.
4004 "d_symlink"
4006 From d_symlink.U:
4007 This variable conditionally defines the "HAS_SYMLINK" symbol, which
4009 indicates to the C program that the symlink() routine is available
4010 to create symbolic links.
4011 "d_syscall"
4013 From d_syscall.U:
4014 This variable conditionally defines "HAS_SYSCALL" if syscall() is
4016 available call arbitrary system calls.
4017 "d_syscallproto"
4019 From d_syscallproto.U:
4020 This variable conditionally defines the "HAS_SYSCALL_PROTO" symbol,
4022 which indicates to the C program that the system provides a
4023 prototype for the syscall() function. Otherwise, it is up to the
4024 program to supply one.
4025 "d_sysconf"
4027 From d_sysconf.U:
4028 This variable conditionally defines the "HAS_SYSCONF" symbol, which
4030 indicates to the C program that the sysconf() routine is available
4031 to determine system related limits and options.
4032 "d_sysernlst"
4034 From d_strerror.U:
4035 This variable conditionally defines "HAS_SYS_ERRNOLIST" if
4037 sys_errnolist[] is available to translate error numbers to the
4038 symbolic name.
4039 "d_syserrlst"
4041 From d_strerror.U:
4042 This variable conditionally defines "HAS_SYS_ERRLIST" if
4044 sys_errlist[] is available to translate error numbers to strings.
4045 "d_system"
4047 From d_system.U:
4048 This variable conditionally defines "HAS_SYSTEM" if system() is
4050 available to issue a shell command.
4051 "d_tcgetpgrp"
4053 From d_tcgtpgrp.U:
4054 This variable conditionally defines the "HAS_TCGETPGRP" symbol,
4056 which indicates to the C program that the tcgetpgrp() routine is
4057 available. to get foreground process group "ID".
4058 "d_tcsetpgrp"
4060 From d_tcstpgrp.U:
4061 This variable conditionally defines the "HAS_TCSETPGRP" symbol,
4063 which indicates to the C program that the tcsetpgrp() routine is
4064 available to set foreground process group "ID".
4065 "d_telldir"
4067 From d_readdir.U:
4068 This variable conditionally defines "HAS_TELLDIR" if telldir() is
4070 available.
4071 "d_telldirproto"
4073 From d_telldirproto.U:
4074 This variable conditionally defines the "HAS_TELLDIR_PROTO" symbol,
4076 which indicates to the C program that the system provides a
4077 prototype for the telldir() function. Otherwise, it is up to the
4078 program to supply one.
4079 "d_tgamma"
4081 From d_tgamma.U:
4082 This variable conditionally defines the "HAS_TGAMMA" symbol, which
4084 indicates to the C program that the tgamma() routine is available
4085 for the gamma function. See also d_lgamma.
4086 "d_thread_safe_nl_langinfo_l"
4088 From d_nl_langinfo_l.U:
4089 This variable contains the eventual value of the
4091 "HAS_THREAD_SAFE_NL_LANGINFO_L" symbol, which indicates if the
4092 nl_langinfo_l() function exists and is thread-safe.
4093 "d_time"
4095 From d_time.U:
4096 This variable conditionally defines the "HAS_TIME" symbol, which
4098 indicates that the time() routine exists. The time() routine is
4099 normally provided on "UNIX" systems.
4100 "d_timegm"
4102 From d_timegm.U:
4103 This variable conditionally defines the "HAS_TIMEGM" symbol, which
4105 indicates to the C program that the timegm () routine is available.
4106 "d_times"
4108 From d_times.U:
4109 This variable conditionally defines the "HAS_TIMES" symbol, which
4111 indicates that the times() routine exists. The times() routine is
4112 normally provided on "UNIX" systems. You may have to include
4113 <sys/times.h>.
4114 "d_tm_tm_gmtoff"
4116 From i_time.U:
4117 This variable conditionally defines "HAS_TM_TM_GMTOFF", which
4119 indicates indicates to the C program that the struct tm has the
4120 tm_gmtoff field.
4121 "d_tm_tm_zone"
4123 From i_time.U:
4124 This variable conditionally defines "HAS_TM_TM_ZONE", which
4126 indicates indicates to the C program that the struct tm has the
4127 tm_zone field.
4128 "d_tmpnam_r"
4130 From d_tmpnam_r.U:
4131 This variable conditionally defines the "HAS_TMPNAM_R" symbol,
4133 which indicates to the C program that the tmpnam_r() routine is
4134 available.
4135 "d_towlower"
4137 From d_towlower.U:
4138 This variable conditionally defines the "HAS_TOWLOWER" symbol,
4140 which indicates to the C program that the towlower() routine is
4141 available.
4142 "d_towupper"
4144 From d_towupper.U:
4145 This variable conditionally defines the "HAS_TOWUPPER" symbol,
4147 which indicates to the C program that the towupper() routine is
4148 available.
4149 "d_trunc"
4151 From d_trunc.U:
4152 This variable conditionally defines the "HAS_TRUNC" symbol, which
4154 indicates to the C program that the trunc() routine is available to
4155 round doubles towards zero.
4156 "d_truncate"
4158 From d_truncate.U:
4159 This variable conditionally defines "HAS_TRUNCATE" if truncate() is
4161 available to truncate files.
4162 "d_truncl"
4164 From d_truncl.U:
4165 This variable conditionally defines the "HAS_TRUNCL" symbol, which
4167 indicates to the C program that the truncl() routine is available
4168 to round long doubles towards zero. If copysignl is also present,
4169 we can emulate modfl.
4170 "d_ttyname_r"
4172 From d_ttyname_r.U:
4173 This variable conditionally defines the "HAS_TTYNAME_R" symbol,
4175 which indicates to the C program that the ttyname_r() routine is
4176 available.
4177 "d_tzname"
4179 From d_tzname.U:
4180 This variable conditionally defines "HAS_TZNAME" if tzname[] is
4182 available to access timezone names.
4183 "d_u32align"
4185 From d_u32align.U:
4186 This variable tells whether you must access character data through
4188 U32-aligned pointers.
4189 "d_ualarm"
4191 From d_ualarm.U:
4192 This variable conditionally defines the "HAS_UALARM" symbol, which
4194 indicates to the C program that the ualarm() routine is available.
4195 "d_umask"
4197 From d_umask.U:
4198 This variable conditionally defines the "HAS_UMASK" symbol, which
4200 indicates to the C program that the umask() routine is available.
4201 to set and get the value of the file creation mask.
4202 "d_uname"
4204 From d_gethname.U:
4205 This variable conditionally defines the "HAS_UNAME" symbol, which
4207 indicates to the C program that the uname() routine may be used to
4208 derive the host name.
4209 "d_union_semun"
4211 From d_union_semun.U:
4212 This variable conditionally defines "HAS_UNION_SEMUN" if the union
4214 semun is defined by including <sys/sem.h>.
4215 "d_unlinkat"
4217 From d_fsat.U:
4218 This variable conditionally defines the "HAS_UNLINKAT" symbol,
4220 which indicates the "POSIX" unlinkat() function isavailable.
4221 "d_unordered"
4223 From d_unordered.U:
4224 This variable conditionally defines the "HAS_UNORDERED" symbol,
4226 which indicates to the C program that the unordered() routine is
4227 available.
4228 "d_unsetenv"
4230 From d_unsetenv.U:
4231 This variable conditionally defines the "HAS_UNSETENV" symbol,
4233 which indicates to the C program that the unsetenv () routine is
4234 available.
4235 "d_uselocale"
4237 From d_newlocale.U:
4238 This variable conditionally defines the "HAS_USELOCALE" symbol,
4240 which indicates to the C program that the uselocale() routine is
4241 available to set the current locale for the calling thread.
4242 "d_usleep"
4244 From d_usleep.U:
4245 This variable conditionally defines "HAS_USLEEP" if usleep() is
4247 available to do high granularity sleeps.
4248 "d_usleepproto"
4250 From d_usleepproto.U:
4251 This variable conditionally defines the "HAS_USLEEP_PROTO" symbol,
4253 which indicates to the C program that the system provides a
4254 prototype for the usleep() function. Otherwise, it is up to the
4255 program to supply one.
4256 "d_ustat"
4258 From d_ustat.U:
4259 This variable conditionally defines "HAS_USTAT" if ustat() is
4261 available to query file system statistics by dev_t.
4262 "d_vendorarch"
4264 From vendorarch.U:
4265 This variable conditionally defined "PERL_VENDORARCH".
4267 "d_vendorbin"
4269 From vendorbin.U:
4270 This variable conditionally defines "PERL_VENDORBIN".
4272 "d_vendorlib"
4274 From vendorlib.U:
4275 This variable conditionally defines "PERL_VENDORLIB".
4277 "d_vendorscript"
4279 From vendorscript.U:
4280 This variable conditionally defines "PERL_VENDORSCRIPT".
4282 "d_vfork"
4284 From d_vfork.U:
4285 This variable conditionally defines the "HAS_VFORK" symbol, which
4287 indicates the vfork() routine is available.
4288 "d_void_closedir"
4290 From d_closedir.U:
4291 This variable conditionally defines "VOID_CLOSEDIR" if closedir()
4293 does not return a value.
4294 "d_voidsig"
4296 From d_voidsig.U:
4297 This variable conditionally defines "VOIDSIG" if this system
4299 declares "void (*signal(...))()" in signal.h. The old way was to
4300 declare it as "int (*signal(...))()".
4301 "d_voidtty"
4303 From i_sysioctl.U:
4304 This variable conditionally defines "USE_IOCNOTTY" to indicate that
4306 the ioctl() call with "TIOCNOTTY" should be used to void tty
4307 association. Otherwise (on "USG" probably), it is enough to close
4308 the standard file descriptors and do a setpgrp().
4309 "d_vsnprintf"
4311 From d_snprintf.U:
4312 This variable conditionally defines the "HAS_VSNPRINTF" symbol,
4314 which indicates to the C program that the vsnprintf () library
4315 function is available.
4316 "d_wait4"
4318 From d_wait4.U:
4319 This variable conditionally defines the HAS_WAIT4 symbol, which
4321 indicates the wait4() routine is available.
4322 "d_waitpid"
4324 From d_waitpid.U:
4325 This variable conditionally defines "HAS_WAITPID" if waitpid() is
4327 available to wait for child process.
4328 "d_wcscmp"
4330 From d_wcscmp.U:
4331 This variable conditionally defines the "HAS_WCSCMP" symbol if the
4333 wcscmp() routine is available and can be used to compare wide
4334 character strings.
4335 "d_wcstombs"
4337 From d_wcstombs.U:
4338 This variable conditionally defines the "HAS_WCSTOMBS" symbol,
4340 which indicates to the C program that the wcstombs() routine is
4341 available to convert wide character strings to multibyte strings.
4342 "d_wcsxfrm"
4344 From d_wcsxfrm.U:
4345 This variable conditionally defines the "HAS_WCSXFRM" symbol if the
4347 wcsxfrm() routine is available and can be used to compare wide
4348 character strings.
4349 "d_wctomb"
4351 From d_wctomb.U:
4352 This variable conditionally defines the "HAS_WCTOMB" symbol, which
4354 indicates to the C program that the wctomb() routine is available
4355 to convert a wide character to a multibyte.
4356 "d_writev"
4358 From d_writev.U:
4359 This variable conditionally defines the "HAS_WRITEV" symbol, which
4361 indicates to the C program that the writev() routine is available.
4362 "d_xenix"
4364 From Guess.U:
4365 This variable conditionally defines the symbol "XENIX", which
4367 alerts the C program that it runs under Xenix.
4368 "date"
4370 From Loc.U:
4371 This variable is used internally by Configure to determine the full
4373 pathname (if any) of the date program. After Configure runs, the
4374 value is reset to a plain "date" and is not useful.
4375 "db_hashtype"
4377 From i_db.U:
4378 This variable contains the type of the hash structure element in
4380 the <db.h> header file. In older versions of "DB", it was int,
4381 while in newer ones it is u_int32_t.
4382 "db_prefixtype"
4384 From i_db.U:
4385 This variable contains the type of the prefix structure element in
4387 the <db.h> header file. In older versions of "DB", it was int,
4388 while in newer ones it is size_t.
4389 "db_version_major"
4391 From i_db.U:
4392 This variable contains the major version number of Berkeley "DB"
4394 found in the <db.h> header file.
4395 "db_version_minor"
4397 From i_db.U:
4398 This variable contains the minor version number of Berkeley "DB"
4400 found in the <db.h> header file. For "DB" version 1 this is always
4401 0.
4402 "db_version_patch"
4404 From i_db.U:
4405 This variable contains the patch version number of Berkeley "DB"
4407 found in the <db.h> header file. For "DB" version 1 this is always
4408 0.
4409 "default_inc_excludes_dot"
4411 From defaultincdot.U:
4412 When defined, remove the legacy . from @"INC"
4414 "direntrytype"
4416 From i_dirent.U:
4417 This symbol is set to "struct direct" or "struct dirent" depending
4419 on whether dirent is available or not. You should use this pseudo
4420 type to portably declare your directory entries.
4421 "dlext"
4423 From dlext.U:
4424 This variable contains the extension that is to be used for the
4426 dynamically loaded modules that perl generates.
4427 "dlsrc"
4429 From dlsrc.U:
4430 This variable contains the name of the dynamic loading file that
4432 will be used with the package.
4433 "doubleinfbytes"
4435 From infnan.U:
4436 This variable contains comma-separated list of hexadecimal bytes
4438 for the double precision infinity.
4439 "doublekind"
4441 From longdblfio.U:
4442 This variable, if defined, encodes the type of a double: 1 = "IEEE"
4444 754 32-bit little endian, 2 = "IEEE" 754 32-bit big endian, 3 =
4445 "IEEE" 754 64-bit little endian, 4 = "IEEE" 754 64-bit big endian,
4446 5 = "IEEE" 754 128-bit little endian, 6 = "IEEE" 754 128-bit big
4447 endian, 7 = "IEEE" 754 64-bit mixed endian le-be, 8 = "IEEE" 754
4448 64-bit mixed endian be-le, 9 = "VAX" 32bit little endian F float
4449 format 10 = "VAX" 64bit little endian D float format 11 = "VAX"
4450 64bit little endian G float format 12 = "IBM" 32bit format 13 =
4451 "IBM" 64bit format 14 = Cray 64bit format -1 = unknown format.
4452 "doublemantbits"
4454 From mantbits.U:
4455 This symbol, if defined, tells how many mantissa bits there are in
4457 double precision floating point format. Note that this is usually
4458 "DBL_MANT_DIG" minus one, since with the standard "IEEE" 754
4459 formats "DBL_MANT_DIG" includes the implicit bit which doesn't
4460 really exist.
4461 "doublenanbytes"
4463 From infnan.U:
4464 This variable contains comma-separated list of hexadecimal bytes
4466 for the double precision not-a-number.
4467 "doublesize"
4469 From doublesize.U:
4470 This variable contains the value of the "DOUBLESIZE" symbol, which
4472 indicates to the C program how many bytes there are in a double.
4473 "drand01"
4475 From randfunc.U:
4476 Indicates the macro to be used to generate normalized random
4478 numbers. Uses randfunc, often divided by (double) (((unsigned
4479 long) 1 << randbits)) in order to normalize the result. In C
4480 programs, the macro "Drand01" is mapped to drand01.
4481 "drand48_r_proto"
4483 From d_drand48_r.U:
4484 This variable encodes the prototype of drand48_r. It is zero if
4486 d_drand48_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
4487 of reentr.h if d_drand48_r is defined.
4488 "dtrace"
4490 From usedtrace.U:
4491 This variable holds the location of the dtrace executable.
4493 "dtraceobject"
4495 From dtraceobject.U:
4496 Whether we need to build an object file with the dtrace tool.
4498 "dtracexnolibs"
4500 From dtraceobject.U:
4501 Whether dtrace accepts -xnolibs. If available we call dtrace -h
4503 and dtrace -G with -xnolibs to allow dtrace to run in a jail on
4504 FreeBSD.
4505 "dynamic_ext"
4507 From Extensions.U:
4508 This variable holds a list of "XS" extension files we want to link
4510 dynamically into the package. It is used by Makefile.
4511 e
4513 "eagain"
4514 From nblock_io.U:
4515 This variable bears the symbolic errno code set by read() when no
4517 data is present on the file and non-blocking I/O was enabled
4518 (otherwise, read() blocks naturally).
4519 "ebcdic"
4521 From ebcdic.U:
4522 This variable conditionally defines "EBCDIC" if this system uses
4524 "EBCDIC" encoding.
4525 "echo"
4527 From Loc.U:
4528 This variable is used internally by Configure to determine the full
4530 pathname (if any) of the echo program. After Configure runs, the
4531 value is reset to a plain "echo" and is not useful.
4532 "egrep"
4534 From Loc.U:
4535 This variable is used internally by Configure to determine the full
4537 pathname (if any) of the egrep program. After Configure runs, the
4538 value is reset to a plain "egrep" and is not useful.
4539 "emacs"
4541 From Loc.U:
4542 This variable is defined but not used by Configure. The value is
4544 the empty string and is not useful.
4545 "endgrent_r_proto"
4547 From d_endgrent_r.U:
4548 This variable encodes the prototype of endgrent_r. It is zero if
4550 d_endgrent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4551 macros of reentr.h if d_endgrent_r is defined.
4552 "endhostent_r_proto"
4554 From d_endhostent_r.U:
4555 This variable encodes the prototype of endhostent_r. It is zero if
4557 d_endhostent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4558 macros of reentr.h if d_endhostent_r is defined.
4559 "endnetent_r_proto"
4561 From d_endnetent_r.U:
4562 This variable encodes the prototype of endnetent_r. It is zero if
4564 d_endnetent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4565 macros of reentr.h if d_endnetent_r is defined.
4566 "endprotoent_r_proto"
4568 From d_endprotoent_r.U:
4569 This variable encodes the prototype of endprotoent_r. It is zero
4571 if d_endprotoent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4572 macros of reentr.h if d_endprotoent_r is defined.
4573 "endpwent_r_proto"
4575 From d_endpwent_r.U:
4576 This variable encodes the prototype of endpwent_r. It is zero if
4578 d_endpwent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4579 macros of reentr.h if d_endpwent_r is defined.
4580 "endservent_r_proto"
4582 From d_endservent_r.U:
4583 This variable encodes the prototype of endservent_r. It is zero if
4585 d_endservent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4586 macros of reentr.h if d_endservent_r is defined.
4587 "eunicefix"
4589 From Init.U:
4590 When running under Eunice this variable contains a command which
4592 will convert a shell script to the proper form of text file for it
4593 to be executable by the shell. On other systems it is a no-op.
4594 "exe_ext"
4596 From Unix.U:
4597 This is an old synonym for _exe.
4599 "expr"
4601 From Loc.U:
4602 This variable is used internally by Configure to determine the full
4604 pathname (if any) of the expr program. After Configure runs, the
4605 value is reset to a plain "expr" and is not useful.
4606 "extensions"
4608 From Extensions.U:
4609 This variable holds a list of all extension files (both "XS" and
4611 non-xs) installed with the package. It is propagated to Config.pm
4612 and is typically used to test whether a particular extension is
4613 available.
4614 "extern_C"
4616 From Csym.U:
4617 "ANSI" C requires "extern" where C++ requires 'extern "C"'. This
4619 variable can be used in Configure to do the right thing.
4620 "extras"
4622 From Extras.U:
4623 This variable holds a list of extra modules to install.
4625 f
4627 "fflushall"
4628 From fflushall.U:
4629 This symbol, if defined, tells that to flush all pending stdio
4631 output one must loop through all the stdio file handles stored in
4632 an array and fflush them. Note that if fflushNULL is defined,
4633 fflushall will not even be probed for and will be left undefined.
4634 "fflushNULL"
4636 From fflushall.U:
4637 This symbol, if defined, tells that fflush("NULL") correctly
4639 flushes all pending stdio output without side effects. In
4640 particular, on some platforms calling fflush("NULL") *still*
4641 corrupts "STDIN" if it is a pipe.
4642 "find"
4644 From Loc.U:
4645 This variable is defined but not used by Configure. The value is
4647 the empty string and is not useful.
4648 "firstmakefile"
4650 From Unix.U:
4651 This variable defines the first file searched by make. On unix, it
4653 is makefile (then Makefile). On case-insensitive systems, it might
4654 be something else. This is only used to deal with convoluted make
4655 depend tricks.
4656 "flex"
4658 From Loc.U:
4659 This variable is defined but not used by Configure. The value is
4661 the empty string and is not useful.
4662 "fpossize"
4664 From fpossize.U:
4665 This variable contains the size of a fpostype in bytes.
4667 "fpostype"
4669 From fpostype.U:
4670 This variable defines Fpos_t to be something like fpos_t, long,
4672 uint, or whatever type is used to declare file positions in libc.
4673 "freetype"
4675 From mallocsrc.U:
4676 This variable contains the return type of free(). It is usually
4678 void, but occasionally int.
4679 "from"
4681 From Cross.U:
4682 This variable contains the command used by Configure to copy files
4684 from the target host. Useful and available only during Perl build.
4685 The string ":" if not cross-compiling.
4686 "full_ar"
4688 From Loc_ar.U:
4689 This variable contains the full pathname to "ar", whether or not
4691 the user has specified "portability". This is only used in the
4692 Makefile.SH.
4693 "full_csh"
4695 From d_csh.U:
4696 This variable contains the full pathname to "csh", whether or not
4698 the user has specified "portability". This is only used in the
4699 compiled C program, and we assume that all systems which can share
4700 this executable will have the same full pathname to csh.
4701 "full_sed"
4703 From Loc_sed.U:
4704 This variable contains the full pathname to "sed", whether or not
4706 the user has specified "portability". This is only used in the
4707 compiled C program, and we assume that all systems which can share
4708 this executable will have the same full pathname to sed.
4709 g
4711 "gccansipedantic"
4712 From gccvers.U:
4713 If "GNU" cc (gcc) is used, this variable will enable (if set) the
4715 -ansi and -pedantic ccflags for building core files (through cflags
4716 script). (See Porting/pumpkin.pod for full description).
4717 "gccosandvers"
4719 From gccvers.U:
4720 If "GNU" cc (gcc) is used, this variable holds the operating system
4722 and version used to compile gcc. It is set to '' if not gcc, or if
4723 nothing useful can be parsed as the os version.
4724 "gccversion"
4726 From gccvers.U:
4727 If "GNU" cc (gcc) is used, this variable holds 1 or 2 to indicate
4729 whether the compiler is version 1 or 2. This is used in setting
4730 some of the default cflags. It is set to '' if not gcc.
4731 "getgrent_r_proto"
4733 From d_getgrent_r.U:
4734 This variable encodes the prototype of getgrent_r. It is zero if
4736 d_getgrent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4737 macros of reentr.h if d_getgrent_r is defined.
4738 "getgrgid_r_proto"
4740 From d_getgrgid_r.U:
4741 This variable encodes the prototype of getgrgid_r. It is zero if
4743 d_getgrgid_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4744 macros of reentr.h if d_getgrgid_r is defined.
4745 "getgrnam_r_proto"
4747 From d_getgrnam_r.U:
4748 This variable encodes the prototype of getgrnam_r. It is zero if
4750 d_getgrnam_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4751 macros of reentr.h if d_getgrnam_r is defined.
4752 "gethostbyaddr_r_proto"
4754 From d_gethostbyaddr_r.U:
4755 This variable encodes the prototype of gethostbyaddr_r. It is zero
4757 if d_gethostbyaddr_r is undef, and one of the
4758 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_gethostbyaddr_r is
4759 defined.
4760 "gethostbyname_r_proto"
4762 From d_gethostbyname_r.U:
4763 This variable encodes the prototype of gethostbyname_r. It is zero
4765 if d_gethostbyname_r is undef, and one of the
4766 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_gethostbyname_r is
4767 defined.
4768 "gethostent_r_proto"
4770 From d_gethostent_r.U:
4771 This variable encodes the prototype of gethostent_r. It is zero if
4773 d_gethostent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4774 macros of reentr.h if d_gethostent_r is defined.
4775 "getlogin_r_proto"
4777 From d_getlogin_r.U:
4778 This variable encodes the prototype of getlogin_r. It is zero if
4780 d_getlogin_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4781 macros of reentr.h if d_getlogin_r is defined.
4782 "getnetbyaddr_r_proto"
4784 From d_getnetbyaddr_r.U:
4785 This variable encodes the prototype of getnetbyaddr_r. It is zero
4787 if d_getnetbyaddr_r is undef, and one of the
4788 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getnetbyaddr_r is
4789 defined.
4790 "getnetbyname_r_proto"
4792 From d_getnetbyname_r.U:
4793 This variable encodes the prototype of getnetbyname_r. It is zero
4795 if d_getnetbyname_r is undef, and one of the
4796 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getnetbyname_r is
4797 defined.
4798 "getnetent_r_proto"
4800 From d_getnetent_r.U:
4801 This variable encodes the prototype of getnetent_r. It is zero if
4803 d_getnetent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4804 macros of reentr.h if d_getnetent_r is defined.
4805 "getprotobyname_r_proto"
4807 From d_getprotobyname_r.U:
4808 This variable encodes the prototype of getprotobyname_r. It is
4810 zero if d_getprotobyname_r is undef, and one of the
4811 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getprotobyname_r is
4812 defined.
4813 "getprotobynumber_r_proto"
4815 From d_getprotobynumber_r.U:
4816 This variable encodes the prototype of getprotobynumber_r. It is
4818 zero if d_getprotobynumber_r is undef, and one of the
4819 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getprotobynumber_r
4820 is defined.
4821 "getprotoent_r_proto"
4823 From d_getprotoent_r.U:
4824 This variable encodes the prototype of getprotoent_r. It is zero
4826 if d_getprotoent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4827 macros of reentr.h if d_getprotoent_r is defined.
4828 "getpwent_r_proto"
4830 From d_getpwent_r.U:
4831 This variable encodes the prototype of getpwent_r. It is zero if
4833 d_getpwent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4834 macros of reentr.h if d_getpwent_r is defined.
4835 "getpwnam_r_proto"
4837 From d_getpwnam_r.U:
4838 This variable encodes the prototype of getpwnam_r. It is zero if
4840 d_getpwnam_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4841 macros of reentr.h if d_getpwnam_r is defined.
4842 "getpwuid_r_proto"
4844 From d_getpwuid_r.U:
4845 This variable encodes the prototype of getpwuid_r. It is zero if
4847 d_getpwuid_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4848 macros of reentr.h if d_getpwuid_r is defined.
4849 "getservbyname_r_proto"
4851 From d_getservbyname_r.U:
4852 This variable encodes the prototype of getservbyname_r. It is zero
4854 if d_getservbyname_r is undef, and one of the
4855 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getservbyname_r is
4856 defined.
4857 "getservbyport_r_proto"
4859 From d_getservbyport_r.U:
4860 This variable encodes the prototype of getservbyport_r. It is zero
4862 if d_getservbyport_r is undef, and one of the
4863 "REENTRANT_PROTO_T_ABC" macros of reentr.h if d_getservbyport_r is
4864 defined.
4865 "getservent_r_proto"
4867 From d_getservent_r.U:
4868 This variable encodes the prototype of getservent_r. It is zero if
4870 d_getservent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4871 macros of reentr.h if d_getservent_r is defined.
4872 "getspnam_r_proto"
4874 From d_getspnam_r.U:
4875 This variable encodes the prototype of getspnam_r. It is zero if
4877 d_getspnam_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
4878 macros of reentr.h if d_getspnam_r is defined.
4879 "gidformat"
4881 From gidf.U:
4882 This variable contains the format string used for printing a Gid_t.
4884 "gidsign"
4886 From gidsign.U:
4887 This variable contains the signedness of a gidtype. 1 for
4889 unsigned, -1 for signed.
4890 "gidsize"
4892 From gidsize.U:
4893 This variable contains the size of a gidtype in bytes.
4895 "gidtype"
4897 From gidtype.U:
4898 This variable defines Gid_t to be something like gid_t, int,
4900 ushort, or whatever type is used to declare the return type of
4901 getgid(). Typically, it is the type of group ids in the kernel.
4902 "glibpth"
4904 From libpth.U:
4905 This variable holds the general path (space-separated) used to find
4907 libraries. It may contain directories that do not exist on this
4908 platform, libpth is the cleaned-up version.
4909 "gmake"
4911 From Loc.U:
4912 This variable is used internally by Configure to determine the full
4914 pathname (if any) of the gmake program. After Configure runs, the
4915 value is reset to a plain "gmake" and is not useful.
4916 "gmtime_r_proto"
4918 From d_gmtime_r.U:
4919 This variable encodes the prototype of gmtime_r. It is zero if
4921 d_gmtime_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
4922 of reentr.h if d_gmtime_r is defined.
4923 "gnulibc_version"
4925 From d_gnulibc.U:
4926 This variable contains the version number of the "GNU" C library.
4928 It is usually something like 2.2.5. It is a plain '' if this is
4929 not the "GNU" C library, or if the version is unknown.
4930 "grep"
4932 From Loc.U:
4933 This variable is used internally by Configure to determine the full
4935 pathname (if any) of the grep program. After Configure runs, the
4936 value is reset to a plain "grep" and is not useful.
4937 "groupcat"
4939 From nis.U:
4940 This variable contains a command that produces the text of the
4942 /etc/group file. This is normally "cat /etc/group", but can be
4943 "ypcat group" when "NIS" is used. On some systems, such as os390,
4944 there may be no equivalent command, in which case this variable is
4945 unset.
4946 "groupstype"
4948 From groupstype.U:
4949 This variable defines Groups_t to be something like gid_t, int,
4951 ushort, or whatever type is used for the second argument to
4952 getgroups() and setgroups(). Usually, this is the same as gidtype
4953 (gid_t), but sometimes it isn't.
4954 "gzip"
4956 From Loc.U:
4957 This variable is used internally by Configure to determine the full
4959 pathname (if any) of the gzip program. After Configure runs, the
4960 value is reset to a plain "gzip" and is not useful.
4961 h
4963 "h_fcntl"
4964 From h_fcntl.U:
4965 This is variable gets set in various places to tell i_fcntl that
4967 <fcntl.h> should be included.
4968 "h_sysfile"
4970 From h_sysfile.U:
4971 This is variable gets set in various places to tell i_sys_file that
4973 <sys/file.h> should be included.
4974 "hint"
4976 From Oldconfig.U:
4977 Gives the type of hints used for previous answers. May be one of
4979 "default", "recommended" or "previous".
4980 "hostcat"
4982 From nis.U:
4983 This variable contains a command that produces the text of the
4985 /etc/hosts file. This is normally "cat /etc/hosts", but can be
4986 "ypcat hosts" when "NIS" is used. On some systems, such as os390,
4987 there may be no equivalent command, in which case this variable is
4988 unset.
4989 "hostgenerate"
4991 From Cross.U:
4992 This variable contains the path to a generate_uudmap binary that
4994 can be run on the host "OS" when cross-compiling. Useful and
4995 available only during Perl build. Empty string '' if not cross-
4996 compiling.
4997 "hostosname"
4999 From Cross.U:
5000 This variable contains the original value of $^O for hostperl when
5002 cross-compiling. This is useful to pick the proper tools when
5003 running build code in the host. Empty string '' if not cross-
5004 compiling.
5005 "hostperl"
5007 From Cross.U:
5008 This variable contains the path to a miniperl binary that can be
5010 run on the host "OS" when cross-compiling. Useful and available
5011 only during Perl build. Empty string '' if not cross-compiling.
5012 "html1dir"
5014 From html1dir.U:
5015 This variable contains the name of the directory in which html
5017 source pages are to be put. This directory is for pages that
5018 describe whole programs, not libraries or modules. It is intended
5019 to correspond roughly to section 1 of the Unix manuals.
5020 "html1direxp"
5022 From html1dir.U:
5023 This variable is the same as the html1dir variable, but is filename
5025 expanded at configuration time, for convenient use in makefiles.
5026 "html3dir"
5028 From html3dir.U:
5029 This variable contains the name of the directory in which html
5031 source pages are to be put. This directory is for pages that
5032 describe libraries or modules. It is intended to correspond
5033 roughly to section 3 of the Unix manuals.
5034 "html3direxp"
5036 From html3dir.U:
5037 This variable is the same as the html3dir variable, but is filename
5039 expanded at configuration time, for convenient use in makefiles.
5040 i
5042 "i16size"
5043 From perlxv.U:
5044 This variable is the size of an I16 in bytes.
5046 "i16type"
5048 From perlxv.U:
5049 This variable contains the C type used for Perl's I16.
5051 "i32size"
5053 From perlxv.U:
5054 This variable is the size of an I32 in bytes.
5056 "i32type"
5058 From perlxv.U:
5059 This variable contains the C type used for Perl's I32.
5061 "i64size"
5063 From perlxv.U:
5064 This variable is the size of an I64 in bytes.
5066 "i64type"
5068 From perlxv.U:
5069 This variable contains the C type used for Perl's I64.
5071 "i8size"
5073 From perlxv.U:
5074 This variable is the size of an I8 in bytes.
5076 "i8type"
5078 From perlxv.U:
5079 This variable contains the C type used for Perl's I8.
5081 "i_arpainet"
5083 From i_arpainet.U:
5084 This variable conditionally defines the "I_ARPA_INET" symbol, and
5086 indicates whether a C program should include <arpa/inet.h>.
5087 "i_bfd"
5089 From i_bfd.U:
5090 This variable conditionally defines the "I_BFD" symbol, and
5092 indicates whether a C program can include <bfd.h>.
5093 "i_bsdioctl"
5095 From i_sysioctl.U:
5096 This variable conditionally defines the "I_SYS_BSDIOCTL" symbol,
5098 which indicates to the C program that <sys/bsdioctl.h> exists and
5099 should be included.
5100 "i_crypt"
5102 From i_crypt.U:
5103 This variable conditionally defines the "I_CRYPT" symbol, and
5105 indicates whether a C program should include <crypt.h>.
5106 "i_db"
5108 From i_db.U:
5109 This variable conditionally defines the "I_DB" symbol, and
5111 indicates whether a C program may include Berkeley's "DB" include
5112 file <db.h>.
5113 "i_dbm"
5115 From i_dbm.U:
5116 This variable conditionally defines the "I_DBM" symbol, which
5118 indicates to the C program that <dbm.h> exists and should be
5119 included.
5120 "i_dirent"
5122 From i_dirent.U:
5123 This variable conditionally defines "I_DIRENT", which indicates to
5125 the C program that it should include <dirent.h>.
5126 "i_dlfcn"
5128 From i_dlfcn.U:
5129 This variable conditionally defines the "I_DLFCN" symbol, which
5131 indicates to the C program that <dlfcn.h> exists and should be
5132 included.
5133 "i_execinfo"
5135 From i_execinfo.U:
5136 This variable conditionally defines the "I_EXECINFO" symbol, and
5138 indicates whether a C program may include <execinfo.h>, for
5139 backtrace() support.
5140 "i_fcntl"
5142 From i_fcntl.U:
5143 This variable controls the value of "I_FCNTL" (which tells the C
5145 program to include <fcntl.h>).
5146 "i_fenv"
5148 From i_fenv.U:
5149 This variable conditionally defines the "I_FENV" symbol, which
5151 indicates to the C program that <fenv.h> exists and should be
5152 included.
5153 "i_fp"
5155 From i_fp.U:
5156 This variable conditionally defines the "I_FP" symbol, and
5158 indicates whether a C program should include <fp.h>.
5159 "i_fp_class"
5161 From i_fp_class.U:
5162 This variable conditionally defines the "I_FP_CLASS" symbol, and
5164 indicates whether a C program should include <fp_class.h>.
5165 "i_gdbm"
5167 From i_gdbm.U:
5168 This variable conditionally defines the "I_GDBM" symbol, which
5170 indicates to the C program that <gdbm.h> exists and should be
5171 included.
5172 "i_gdbm_ndbm"
5174 From i_ndbm.U:
5175 This variable conditionally defines the "I_GDBM_NDBM" symbol, which
5177 indicates to the C program that <gdbm-ndbm.h> exists and should be
5178 included. This is the location of the ndbm.h compatibility file in
5179 Debian 4.0.
5180 "i_gdbmndbm"
5182 From i_ndbm.U:
5183 This variable conditionally defines the "I_GDBMNDBM" symbol, which
5185 indicates to the C program that <gdbm/ndbm.h> exists and should be
5186 included. This was the location of the ndbm.h compatibility file
5187 in RedHat 7.1.
5188 "i_grp"
5190 From i_grp.U:
5191 This variable conditionally defines the "I_GRP" symbol, and
5193 indicates whether a C program should include <grp.h>.
5194 "i_ieeefp"
5196 From i_ieeefp.U:
5197 This variable conditionally defines the "I_IEEEFP" symbol, and
5199 indicates whether a C program should include <ieeefp.h>.
5200 "i_inttypes"
5202 From i_inttypes.U:
5203 This variable conditionally defines the "I_INTTYPES" symbol, and
5205 indicates whether a C program should include <inttypes.h>.
5206 "i_langinfo"
5208 From i_langinfo.U:
5209 This variable conditionally defines the "I_LANGINFO" symbol, and
5211 indicates whether a C program should include <langinfo.h>.
5212 "i_libutil"
5214 From i_libutil.U:
5215 This variable conditionally defines the "I_LIBUTIL" symbol, and
5217 indicates whether a C program should include <libutil.h>.
5218 "i_locale"
5220 From i_locale.U:
5221 This variable conditionally defines the "I_LOCALE" symbol, and
5223 indicates whether a C program should include <locale.h>.
5224 "i_machcthr"
5226 From i_machcthr.U:
5227 This variable conditionally defines the "I_MACH_CTHREADS" symbol,
5229 and indicates whether a C program should include <mach/cthreads.h>.
5230 "i_malloc"
5232 From i_malloc.U:
5233 This variable conditionally defines the "I_MALLOC" symbol, and
5235 indicates whether a C program should include <malloc.h>.
5236 "i_mallocmalloc"
5238 From i_mallocmalloc.U:
5239 This variable conditionally defines the "I_MALLOCMALLOC" symbol,
5241 and indicates whether a C program should include <malloc/malloc.h>.
5242 "i_mntent"
5244 From i_mntent.U:
5245 This variable conditionally defines the "I_MNTENT" symbol, and
5247 indicates whether a C program should include <mntent.h>.
5248 "i_ndbm"
5250 From i_ndbm.U:
5251 This variable conditionally defines the "I_NDBM" symbol, which
5253 indicates to the C program that <ndbm.h> exists and should be
5254 included.
5255 "i_netdb"
5257 From i_netdb.U:
5258 This variable conditionally defines the "I_NETDB" symbol, and
5260 indicates whether a C program should include <netdb.h>.
5261 "i_neterrno"
5263 From i_neterrno.U:
5264 This variable conditionally defines the "I_NET_ERRNO" symbol, which
5266 indicates to the C program that <net/errno.h> exists and should be
5267 included.
5268 "i_netinettcp"
5270 From i_netinettcp.U:
5271 This variable conditionally defines the "I_NETINET_TCP" symbol, and
5273 indicates whether a C program should include <netinet/tcp.h>.
5274 "i_niin"
5276 From i_niin.U:
5277 This variable conditionally defines "I_NETINET_IN", which indicates
5279 to the C program that it should include <netinet/in.h>. Otherwise,
5280 you may try <sys/in.h>.
5281 "i_poll"
5283 From i_poll.U:
5284 This variable conditionally defines the "I_POLL" symbol, and
5286 indicates whether a C program should include <poll.h>.
5287 "i_prot"
5289 From i_prot.U:
5290 This variable conditionally defines the "I_PROT" symbol, and
5292 indicates whether a C program should include <prot.h>.
5293 "i_pthread"
5295 From i_pthread.U:
5296 This variable conditionally defines the "I_PTHREAD" symbol, and
5298 indicates whether a C program should include <pthread.h>.
5299 "i_pwd"
5301 From i_pwd.U:
5302 This variable conditionally defines "I_PWD", which indicates to the
5304 C program that it should include <pwd.h>.
5305 "i_quadmath"
5307 From i_quadmath.U:
5308 This variable conditionally defines "I_QUADMATH", which indicates
5310 to the C program that it should include <quadmath.h>.
5311 "i_rpcsvcdbm"
5313 From i_dbm.U:
5314 This variable conditionally defines the "I_RPCSVC_DBM" symbol,
5316 which indicates to the C program that <rpcsvc/dbm.h> exists and
5317 should be included. Some System V systems might need this instead
5318 of <dbm.h>.
5319 "i_sgtty"
5321 From i_termio.U:
5322 This variable conditionally defines the "I_SGTTY" symbol, which
5324 indicates to the C program that it should include <sgtty.h> rather
5325 than <termio.h>.
5326 "i_shadow"
5328 From i_shadow.U:
5329 This variable conditionally defines the "I_SHADOW" symbol, and
5331 indicates whether a C program should include <shadow.h>.
5332 "i_socks"
5334 From i_socks.U:
5335 This variable conditionally defines the "I_SOCKS" symbol, and
5337 indicates whether a C program should include <socks.h>.
5338 "i_stdbool"
5340 From i_stdbool.U:
5341 This variable conditionally defines the "I_STDBOOL" symbol, which
5343 indicates to the C program that <stdbool.h> exists and should be
5344 included.
5345 "i_stdint"
5347 From i_stdint.U:
5348 This variable conditionally defines the "I_STDINT" symbol, which
5350 indicates to the C program that <stdint.h> exists and should be
5351 included.
5352 "i_stdlib"
5354 From i_stdlib.U:
5355 This variable unconditionally defines the "I_STDLIB" symbol.
5357 "i_sunmath"
5359 From i_sunmath.U:
5360 This variable conditionally defines the "I_SUNMATH" symbol, and
5362 indicates whether a C program should include <sunmath.h>.
5363 "i_sysaccess"
5365 From i_sysaccess.U:
5366 This variable conditionally defines the "I_SYS_ACCESS" symbol, and
5368 indicates whether a C program should include <sys/access.h>.
5369 "i_sysdir"
5371 From i_sysdir.U:
5372 This variable conditionally defines the "I_SYS_DIR" symbol, and
5374 indicates whether a C program should include <sys/dir.h>.
5375 "i_sysfile"
5377 From i_sysfile.U:
5378 This variable conditionally defines the "I_SYS_FILE" symbol, and
5380 indicates whether a C program should include <sys/file.h> to get
5381 "R_OK" and friends.
5382 "i_sysfilio"
5384 From i_sysioctl.U:
5385 This variable conditionally defines the "I_SYS_FILIO" symbol, which
5387 indicates to the C program that <sys/filio.h> exists and should be
5388 included in preference to <sys/ioctl.h>.
5389 "i_sysin"
5391 From i_niin.U:
5392 This variable conditionally defines "I_SYS_IN", which indicates to
5394 the C program that it should include <sys/in.h> instead of
5395 <netinet/in.h>.
5396 "i_sysioctl"
5398 From i_sysioctl.U:
5399 This variable conditionally defines the "I_SYS_IOCTL" symbol, which
5401 indicates to the C program that <sys/ioctl.h> exists and should be
5402 included.
5403 "i_syslog"
5405 From i_syslog.U:
5406 This variable conditionally defines the "I_SYSLOG" symbol, and
5408 indicates whether a C program should include <syslog.h>.
5409 "i_sysmman"
5411 From i_sysmman.U:
5412 This variable conditionally defines the "I_SYS_MMAN" symbol, and
5414 indicates whether a C program should include <sys/mman.h>.
5415 "i_sysmode"
5417 From i_sysmode.U:
5418 This variable conditionally defines the "I_SYSMODE" symbol, and
5420 indicates whether a C program should include <sys/mode.h>.
5421 "i_sysmount"
5423 From i_sysmount.U:
5424 This variable conditionally defines the "I_SYSMOUNT" symbol, and
5426 indicates whether a C program should include <sys/mount.h>.
5427 "i_sysndir"
5429 From i_sysndir.U:
5430 This variable conditionally defines the "I_SYS_NDIR" symbol, and
5432 indicates whether a C program should include <sys/ndir.h>.
5433 "i_sysparam"
5435 From i_sysparam.U:
5436 This variable conditionally defines the "I_SYS_PARAM" symbol, and
5438 indicates whether a C program should include <sys/param.h>.
5439 "i_syspoll"
5441 From i_syspoll.U:
5442 This variable conditionally defines the "I_SYS_POLL" symbol, which
5444 indicates to the C program that it should include <sys/poll.h>.
5445 "i_sysresrc"
5447 From i_sysresrc.U:
5448 This variable conditionally defines the "I_SYS_RESOURCE" symbol,
5450 and indicates whether a C program should include <sys/resource.h>.
5451 "i_syssecrt"
5453 From i_syssecrt.U:
5454 This variable conditionally defines the "I_SYS_SECURITY" symbol,
5456 and indicates whether a C program should include <sys/security.h>.
5457 "i_sysselct"
5459 From i_sysselct.U:
5460 This variable conditionally defines "I_SYS_SELECT", which indicates
5462 to the C program that it should include <sys/select.h> in order to
5463 get the definition of struct timeval.
5464 "i_syssockio"
5466 From i_sysioctl.U:
5467 This variable conditionally defines "I_SYS_SOCKIO" to indicate to
5469 the C program that socket ioctl codes may be found in
5470 <sys/sockio.h> instead of <sys/ioctl.h>.
5471 "i_sysstat"
5473 From i_sysstat.U:
5474 This variable conditionally defines the "I_SYS_STAT" symbol, and
5476 indicates whether a C program should include <sys/stat.h>.
5477 "i_sysstatfs"
5479 From i_sysstatfs.U:
5480 This variable conditionally defines the "I_SYSSTATFS" symbol, and
5482 indicates whether a C program should include <sys/statfs.h>.
5483 "i_sysstatvfs"
5485 From i_sysstatvfs.U:
5486 This variable conditionally defines the "I_SYSSTATVFS" symbol, and
5488 indicates whether a C program should include <sys/statvfs.h>.
5489 "i_systime"
5491 From i_time.U:
5492 This variable conditionally defines "I_SYS_TIME", which indicates
5494 to the C program that it should include <sys/time.h>.
5495 "i_systimek"
5497 From i_time.U:
5498 This variable conditionally defines "I_SYS_TIME_KERNEL", which
5500 indicates to the C program that it should include <sys/time.h> with
5501 "KERNEL" defined.
5502 "i_systimes"
5504 From i_systimes.U:
5505 This variable conditionally defines the "I_SYS_TIMES" symbol, and
5507 indicates whether a C program should include <sys/times.h>.
5508 "i_systypes"
5510 From i_systypes.U:
5511 This variable conditionally defines the "I_SYS_TYPES" symbol, and
5513 indicates whether a C program should include <sys/types.h>.
5514 "i_sysuio"
5516 From i_sysuio.U:
5517 This variable conditionally defines the "I_SYSUIO" symbol, and
5519 indicates whether a C program should include <sys/uio.h>.
5520 "i_sysun"
5522 From i_sysun.U:
5523 This variable conditionally defines "I_SYS_UN", which indicates to
5525 the C program that it should include <sys/un.h> to get "UNIX"
5526 domain socket definitions.
5527 "i_sysutsname"
5529 From i_sysutsname.U:
5530 This variable conditionally defines the "I_SYSUTSNAME" symbol, and
5532 indicates whether a C program should include <sys/utsname.h>.
5533 "i_sysvfs"
5535 From i_sysvfs.U:
5536 This variable conditionally defines the "I_SYSVFS" symbol, and
5538 indicates whether a C program should include <sys/vfs.h>.
5539 "i_syswait"
5541 From i_syswait.U:
5542 This variable conditionally defines "I_SYS_WAIT", which indicates
5544 to the C program that it should include <sys/wait.h>.
5545 "i_termio"
5547 From i_termio.U:
5548 This variable conditionally defines the "I_TERMIO" symbol, which
5550 indicates to the C program that it should include <termio.h> rather
5551 than <sgtty.h>.
5552 "i_termios"
5554 From i_termio.U:
5555 This variable conditionally defines the "I_TERMIOS" symbol, which
5557 indicates to the C program that the "POSIX" <termios.h> file is to
5558 be included.
5559 "i_time"
5561 From i_time.U:
5562 This variable unconditionally defines "I_TIME", which indicates to
5564 the C program that it should include <time.h>.
5565 "i_unistd"
5567 From i_unistd.U:
5568 This variable conditionally defines the "I_UNISTD" symbol, and
5570 indicates whether a C program should include <unistd.h>.
5571 "i_ustat"
5573 From i_ustat.U:
5574 This variable conditionally defines the "I_USTAT" symbol, and
5576 indicates whether a C program should include <ustat.h>.
5577 "i_utime"
5579 From i_utime.U:
5580 This variable conditionally defines the "I_UTIME" symbol, and
5582 indicates whether a C program should include <utime.h>.
5583 "i_vfork"
5585 From i_vfork.U:
5586 This variable conditionally defines the "I_VFORK" symbol, and
5588 indicates whether a C program should include vfork.h.
5589 "i_wchar"
5591 From i_wchar.U:
5592 This variable conditionally defines the "I_WCHAR" symbol, that
5594 indicates whether a C program may include <wchar.h>.
5595 "i_wctype"
5597 From i_wctype.U:
5598 This variable conditionally defines the "I_WCTYPE" symbol, that
5600 indicates whether a C program may include <wctype.h>.
5601 "i_xlocale"
5603 From d_newlocale.U:
5604 This symbol, if defined, indicates to the C program that it should
5606 include <xlocale.h> to get uselocale() and its friends
5607 "ignore_versioned_solibs"
5609 From libs.U:
5610 This variable should be non-empty if non-versioned shared libraries
5612 (libfoo.so.x.y) are to be ignored (because they cannot be linked
5613 against).
5614 "inc_version_list"
5616 From inc_version_list.U:
5617 This variable specifies the list of subdirectories in over which
5619 perl.c:incpush() and lib/lib.pm will automatically search when
5620 adding directories to @"INC". The elements in the list are
5621 separated by spaces. This is only useful if you have a perl
5622 library directory tree structured like the default one. See
5623 "INSTALL" for how this works. The versioned site_perl directory
5624 was introduced in 5.005, so that is the lowest possible value.
5625 This list includes architecture-dependent directories back to
5627 version $api_versionstring (e.g. 5.5.640) and architecture-
5628 independent directories all the way back to 5.005.
5629 "inc_version_list_init"
5631 From inc_version_list.U:
5632 This variable holds the same list as inc_version_list, but each
5634 item is enclosed in double quotes and separated by commas, suitable
5635 for use in the "PERL_INC_VERSION_LIST" initialization.
5636 "incpath"
5638 From usrinc.U:
5639 This variable must precede the normal include path to get the right
5641 one, as in $incpath/usr/include or $incpath/usr/lib. Value can be
5642 "" or /bsd43 on mips.
5643 "incpth"
5645 From libpth.U:
5646 This variable must precede the normal include path to get the right
5648 one, as in $incpath/usr/include or $incpath/usr/lib. Value can be
5649 "" or /bsd43 on mips.
5650 "inews"
5652 From Loc.U:
5653 This variable is defined but not used by Configure. The value is
5655 the empty string and is not useful.
5656 "initialinstalllocation"
5658 From bin.U:
5659 When userelocatableinc is true, this variable holds the location
5661 that make install should copy the perl binary to, with all the run-
5662 time relocatable paths calculated from this at install time. When
5663 used, it is initialized to the original value of binexp, and then
5664 binexp is set to .../, as the other binaries are found relative to
5665 the perl binary.
5666 "installarchlib"
5668 From archlib.U:
5669 This variable is really the same as archlibexp but may differ on
5671 those systems using "AFS". For extra portability, only this
5672 variable should be used in makefiles.
5673 "installbin"
5675 From bin.U:
5676 This variable is the same as binexp unless "AFS" is running in
5678 which case the user is explicitly prompted for it. This variable
5679 should always be used in your makefiles for maximum portability.
5680 "installhtml1dir"
5682 From html1dir.U:
5683 This variable is really the same as html1direxp, unless you are
5685 using a different installprefix. For extra portability, you should
5686 only use this variable within your makefiles.
5687 "installhtml3dir"
5689 From html3dir.U:
5690 This variable is really the same as html3direxp, unless you are
5692 using a different installprefix. For extra portability, you should
5693 only use this variable within your makefiles.
5694 "installman1dir"
5696 From man1dir.U:
5697 This variable is really the same as man1direxp, unless you are
5699 using "AFS" in which case it points to the read/write location
5700 whereas man1direxp only points to the read-only access location.
5701 For extra portability, you should only use this variable within
5702 your makefiles.
5703 "installman3dir"
5705 From man3dir.U:
5706 This variable is really the same as man3direxp, unless you are
5708 using "AFS" in which case it points to the read/write location
5709 whereas man3direxp only points to the read-only access location.
5710 For extra portability, you should only use this variable within
5711 your makefiles.
5712 "installprefix"
5714 From installprefix.U:
5715 This variable holds the name of the directory below which "make
5717 install" will install the package. For most users, this is the
5718 same as prefix. However, it is useful for installing the software
5719 into a different (usually temporary) location after which it can be
5720 bundled up and moved somehow to the final location specified by
5721 prefix.
5722 "installprefixexp"
5724 From installprefix.U:
5725 This variable holds the full absolute path of installprefix with
5727 all ~-expansion done.
5728 "installprivlib"
5730 From privlib.U:
5731 This variable is really the same as privlibexp but may differ on
5733 those systems using "AFS". For extra portability, only this
5734 variable should be used in makefiles.
5735 "installscript"
5737 From scriptdir.U:
5738 This variable is usually the same as scriptdirexp, unless you are
5740 on a system running "AFS", in which case they may differ slightly.
5741 You should always use this variable within your makefiles for
5742 portability.
5743 "installsitearch"
5745 From sitearch.U:
5746 This variable is really the same as sitearchexp but may differ on
5748 those systems using "AFS". For extra portability, only this
5749 variable should be used in makefiles.
5750 "installsitebin"
5752 From sitebin.U:
5753 This variable is usually the same as sitebinexp, unless you are on
5755 a system running "AFS", in which case they may differ slightly. You
5756 should always use this variable within your makefiles for
5757 portability.
5758 "installsitehtml1dir"
5760 From sitehtml1dir.U:
5761 This variable is really the same as sitehtml1direxp, unless you are
5763 using "AFS" in which case it points to the read/write location
5764 whereas html1direxp only points to the read-only access location.
5765 For extra portability, you should only use this variable within
5766 your makefiles.
5767 "installsitehtml3dir"
5769 From sitehtml3dir.U:
5770 This variable is really the same as sitehtml3direxp, unless you are
5772 using "AFS" in which case it points to the read/write location
5773 whereas html3direxp only points to the read-only access location.
5774 For extra portability, you should only use this variable within
5775 your makefiles.
5776 "installsitelib"
5778 From sitelib.U:
5779 This variable is really the same as sitelibexp but may differ on
5781 those systems using "AFS". For extra portability, only this
5782 variable should be used in makefiles.
5783 "installsiteman1dir"
5785 From siteman1dir.U:
5786 This variable is really the same as siteman1direxp, unless you are
5788 using "AFS" in which case it points to the read/write location
5789 whereas man1direxp only points to the read-only access location.
5790 For extra portability, you should only use this variable within
5791 your makefiles.
5792 "installsiteman3dir"
5794 From siteman3dir.U:
5795 This variable is really the same as siteman3direxp, unless you are
5797 using "AFS" in which case it points to the read/write location
5798 whereas man3direxp only points to the read-only access location.
5799 For extra portability, you should only use this variable within
5800 your makefiles.
5801 "installsitescript"
5803 From sitescript.U:
5804 This variable is usually the same as sitescriptexp, unless you are
5806 on a system running "AFS", in which case they may differ slightly.
5807 You should always use this variable within your makefiles for
5808 portability.
5809 "installstyle"
5811 From installstyle.U:
5812 This variable describes the "style" of the perl installation. This
5814 is intended to be useful for tools that need to manipulate entire
5815 perl distributions. Perl itself doesn't use this to find its
5816 libraries -- the library directories are stored directly in
5817 Config.pm. Currently, there are only two styles: "lib" and
5818 lib/perl5. The default library locations (e.g. privlib, sitelib)
5819 are either $prefix/lib or $prefix/lib/perl5. The former is useful
5820 if $prefix is a directory dedicated to perl (e.g. /opt/perl), while
5821 the latter is useful if $prefix is shared by many packages, e.g. if
5822 $prefix=/usr/local.
5823 Unfortunately, while this "style" variable is used to set defaults
5825 for all three directory hierarchies (core, vendor, and site), there
5826 is no guarantee that the same style is actually appropriate for all
5827 those directories. For example, $prefix might be /opt/perl, but
5828 $siteprefix might be /usr/local. (Perhaps, in retrospect, the
5829 "lib" style should never have been supported, but it did seem like
5830 a nice idea at the time.)
5831 The situation is even less clear for tools such as MakeMaker that
5833 can be used to install additional modules into non-standard places.
5834 For example, if a user intends to install a module into a private
5835 directory (perhaps by setting "PREFIX" on the Makefile.PL command
5836 line), then there is no reason to assume that the Configure-time
5837 $installstyle setting will be relevant for that "PREFIX".
5838 This may later be extended to include other information, so be
5840 careful with pattern-matching on the results.
5841 For compatibility with perl5.005 and earlier, the default setting
5843 is based on whether or not $prefix contains the string "perl".
5844 "installusrbinperl"
5846 From instubperl.U:
5847 This variable tells whether Perl should be installed also as
5849 /usr/bin/perl in addition to $installbin/perl
5850 "installvendorarch"
5852 From vendorarch.U:
5853 This variable is really the same as vendorarchexp but may differ on
5855 those systems using "AFS". For extra portability, only this
5856 variable should be used in makefiles.
5857 "installvendorbin"
5859 From vendorbin.U:
5860 This variable is really the same as vendorbinexp but may differ on
5862 those systems using "AFS". For extra portability, only this
5863 variable should be used in makefiles.
5864 "installvendorhtml1dir"
5866 From vendorhtml1dir.U:
5867 This variable is really the same as vendorhtml1direxp but may
5869 differ on those systems using "AFS". For extra portability, only
5870 this variable should be used in makefiles.
5871 "installvendorhtml3dir"
5873 From vendorhtml3dir.U:
5874 This variable is really the same as vendorhtml3direxp but may
5876 differ on those systems using "AFS". For extra portability, only
5877 this variable should be used in makefiles.
5878 "installvendorlib"
5880 From vendorlib.U:
5881 This variable is really the same as vendorlibexp but may differ on
5883 those systems using "AFS". For extra portability, only this
5884 variable should be used in makefiles.
5885 "installvendorman1dir"
5887 From vendorman1dir.U:
5888 This variable is really the same as vendorman1direxp but may differ
5890 on those systems using "AFS". For extra portability, only this
5891 variable should be used in makefiles.
5892 "installvendorman3dir"
5894 From vendorman3dir.U:
5895 This variable is really the same as vendorman3direxp but may differ
5897 on those systems using "AFS". For extra portability, only this
5898 variable should be used in makefiles.
5899 "installvendorscript"
5901 From vendorscript.U:
5902 This variable is really the same as vendorscriptexp but may differ
5904 on those systems using "AFS". For extra portability, only this
5905 variable should be used in makefiles.
5906 "intsize"
5908 From intsize.U:
5909 This variable contains the value of the "INTSIZE" symbol, which
5911 indicates to the C program how many bytes there are in an int.
5912 "issymlink"
5914 From issymlink.U:
5915 This variable holds the test command to test for a symbolic link
5917 (if they are supported). Typical values include "test -h" and
5918 "test -L".
5919 "ivdformat"
5921 From perlxvf.U:
5922 This variable contains the format string used for printing a Perl
5924 "IV" as a signed decimal integer.
5925 "ivsize"
5927 From perlxv.U:
5928 This variable is the size of an "IV" in bytes.
5930 "ivtype"
5932 From perlxv.U:
5933 This variable contains the C type used for Perl's "IV".
5935 k
5937 "known_extensions"
5938 From Extensions.U:
5939 This variable holds a list of all extensions (both "XS" and non-xs)
5941 included in the package source distribution. This information is
5942 only really of use during the Perl build, as the list makes no
5943 distinction between extensions which were build and installed, and
5944 those which where not. See "extensions" for the list of extensions
5945 actually built and available.
5946 "ksh"
5948 From Loc.U:
5949 This variable is defined but not used by Configure. The value is
5951 the empty string and is not useful.
5952 l
5954 "ld"
5955 From dlsrc.U:
5956 This variable indicates the program to be used to link libraries
5958 for dynamic loading. On some systems, it is "ld". On "ELF"
5959 systems, it should be $cc. Mostly, we'll try to respect the hint
5960 file setting.
5961 "ld_can_script"
5963 From dlsrc.U:
5964 This variable shows if the loader accepts scripts in the form of
5966 -Wl,--version-script=ld.script. This is currently only supported
5967 for "GNU" ld on "ELF" in dynamic loading builds.
5968 "lddlflags"
5970 From dlsrc.U:
5971 This variable contains any special flags that might need to be
5973 passed to $ld to create a shared library suitable for dynamic
5974 loading. It is up to the makefile to use it. For hpux, it should
5975 be "-b". For sunos 4.1, it is empty.
5976 "ldflags"
5978 From ccflags.U:
5979 This variable contains any additional C loader flags desired by the
5981 user. It is up to the Makefile to use this.
5982 "ldflags_uselargefiles"
5984 From uselfs.U:
5985 This variable contains the loader flags needed by large file builds
5987 and added to ldflags by hints files.
5988 "ldlibpthname"
5990 From libperl.U:
5991 This variable holds the name of the shared library search path,
5993 often "LD_LIBRARY_PATH". To get an empty string, the hints file
5994 must set this to "none".
5995 "less"
5997 From Loc.U:
5998 This variable is used internally by Configure to determine the full
6000 pathname (if any) of the less program. After Configure runs, the
6001 value is reset to a plain "less" and is not useful.
6002 "lib_ext"
6004 From Unix.U:
6005 This is an old synonym for _a.
6007 "libc"
6009 From libc.U:
6010 This variable contains the location of the C library.
6012 "libperl"
6014 From libperl.U:
6015 The perl executable is obtained by linking perlmain.c with libperl,
6017 any static extensions (usually just DynaLoader), and any other
6018 libraries needed on this system. libperl is usually libperl.a, but
6019 can also be libperl.so.xxx if the user wishes to build a perl
6020 executable with a shared library.
6021 "libpth"
6023 From libpth.U:
6024 This variable holds the general path (space-separated) used to find
6026 libraries. It is intended to be used by other units.
6027 "libs"
6029 From libs.U:
6030 This variable holds the additional libraries we want to use. It is
6032 up to the Makefile to deal with it. The list can be empty.
6033 "libsdirs"
6035 From libs.U:
6036 This variable holds the directory names aka dirnames of the
6038 libraries we found and accepted, duplicates are removed.
6039 "libsfiles"
6041 From libs.U:
6042 This variable holds the filenames aka basenames of the libraries we
6044 found and accepted.
6045 "libsfound"
6047 From libs.U:
6048 This variable holds the full pathnames of the libraries we found
6050 and accepted.
6051 "libspath"
6053 From libs.U:
6054 This variable holds the directory names probed for libraries.
6056 "libswanted"
6058 From Myinit.U:
6059 This variable holds a list of all the libraries we want to search.
6061 The order is chosen to pick up the c library ahead of ucb or bsd
6062 libraries for SVR4.
6063 "libswanted_uselargefiles"
6065 From uselfs.U:
6066 This variable contains the libraries needed by large file builds
6068 and added to ldflags by hints files. It is a space separated list
6069 of the library names without the "lib" prefix or any suffix, just
6070 like libswanted..
6071 "line"
6073 From Loc.U:
6074 This variable is defined but not used by Configure. The value is
6076 the empty string and is not useful.
6077 "lint"
6079 From Loc.U:
6080 This variable is defined but not used by Configure. The value is
6082 the empty string and is not useful.
6083 "lkflags"
6085 From ccflags.U:
6086 This variable contains any additional C partial linker flags
6088 desired by the user. It is up to the Makefile to use this.
6089 "ln"
6091 From Loc.U:
6092 This variable is used internally by Configure to determine the full
6094 pathname (if any) of the ln program. After Configure runs, the
6095 value is reset to a plain "ln" and is not useful.
6096 "lns"
6098 From lns.U:
6099 This variable holds the name of the command to make symbolic links
6101 (if they are supported). It can be used in the Makefile. It is
6102 either "ln -s" or "ln"
6103 "localtime_r_proto"
6105 From d_localtime_r.U:
6106 This variable encodes the prototype of localtime_r. It is zero if
6108 d_localtime_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
6109 macros of reentr.h if d_localtime_r is defined.
6110 "locincpth"
6112 From ccflags.U:
6113 This variable contains a list of additional directories to be
6115 searched by the compiler. The appropriate "-I" directives will be
6116 added to ccflags. This is intended to simplify setting local
6117 directories from the Configure command line. It's not much, but it
6118 parallels the loclibpth stuff in libpth.U.
6119 "loclibpth"
6121 From libpth.U:
6122 This variable holds the paths (space-separated) used to find local
6124 libraries. It is prepended to libpth, and is intended to be easily
6125 set from the command line.
6126 "longdblinfbytes"
6128 From infnan.U:
6129 This variable contains comma-separated list of hexadecimal bytes
6131 for the long double precision infinity.
6132 "longdblkind"
6134 From d_longdbl.U:
6135 This variable, if defined, encodes the type of a long double: 0 =
6137 double, 1 = "IEEE" 754 128-bit little endian, 2 = "IEEE" 754
6138 128-bit big endian, 3 = x86 80-bit little endian, 4 = x86 80-bit
6139 big endian, 5 = double-double 128-bit little endian, 6 = double-
6140 double 128-bit big endian, 7 = 128-bit mixed-endian double-double
6141 (64-bit LEs in "BE"), 8 = 128-bit mixed-endian double-double
6142 (64-bit BEs in "LE"), 9 = 128-bit "PDP"-style mixed-endian long
6143 doubles, -1 = unknown format.
6144 "longdblmantbits"
6146 From mantbits.U:
6147 This symbol, if defined, tells how many mantissa bits there are in
6149 long double precision floating point format. Note that this can be
6150 "LDBL_MANT_DIG" minus one, since "LDBL_MANT_DIG" can include the
6151 "IEEE" 754 implicit bit. The common x86-style 80-bit long double
6152 does not have an implicit bit.
6153 "longdblnanbytes"
6155 From infnan.U:
6156 This variable contains comma-separated list of hexadecimal bytes
6158 for the long double precision not-a-number.
6159 "longdblsize"
6161 From d_longdbl.U:
6162 This variable contains the value of the "LONG_DOUBLESIZE" symbol,
6164 which indicates to the C program how many bytes there are in a long
6165 double, if this system supports long doubles. Note that this is
6166 sizeof(long double), which may include unused bytes.
6167 "longlongsize"
6169 From d_longlong.U:
6170 This variable contains the value of the "LONGLONGSIZE" symbol,
6172 which indicates to the C program how many bytes there are in a long
6173 long, if this system supports long long.
6174 "longsize"
6176 From intsize.U:
6177 This variable contains the value of the "LONGSIZE" symbol, which
6179 indicates to the C program how many bytes there are in a long.
6180 "lp"
6182 From Loc.U:
6183 This variable is defined but not used by Configure. The value is
6185 the empty string and is not useful.
6186 "lpr"
6188 From Loc.U:
6189 This variable is defined but not used by Configure. The value is
6191 the empty string and is not useful.
6192 "ls"
6194 From Loc.U:
6195 This variable is used internally by Configure to determine the full
6197 pathname (if any) of the ls program. After Configure runs, the
6198 value is reset to a plain "ls" and is not useful.
6199 "lseeksize"
6201 From lseektype.U:
6202 This variable defines lseektype to be something like off_t, long,
6204 or whatever type is used to declare lseek offset's type in the
6205 kernel (which also appears to be lseek's return type).
6206 "lseektype"
6208 From lseektype.U:
6209 This variable defines lseektype to be something like off_t, long,
6211 or whatever type is used to declare lseek offset's type in the
6212 kernel (which also appears to be lseek's return type).
6213 m
6215 "mail"
6216 From Loc.U:
6217 This variable is defined but not used by Configure. The value is
6219 the empty string and is not useful.
6220 "mailx"
6222 From Loc.U:
6223 This variable is defined but not used by Configure. The value is
6225 the empty string and is not useful.
6226 "make"
6228 From Loc.U:
6229 This variable is used internally by Configure to determine the full
6231 pathname (if any) of the make program. After Configure runs, the
6232 value is reset to a plain "make" and is not useful.
6233 "make_set_make"
6235 From make.U:
6236 Some versions of "make" set the variable "MAKE". Others do not.
6238 This variable contains the string to be included in Makefile.SH so
6239 that "MAKE" is set if needed, and not if not needed. Possible
6240 values are:
6241 make_set_make="#" # If your make program handles this for
6243 you,
6244 make_set_make="MAKE=$make" # if it doesn't.
6246 This uses a comment character so that we can distinguish a "set"
6248 value (from a previous config.sh or Configure "-D" option) from an
6249 uncomputed value.
6250 "mallocobj"
6252 From mallocsrc.U:
6253 This variable contains the name of the malloc.o that this package
6255 generates, if that malloc.o is preferred over the system malloc.
6256 Otherwise the value is null. This variable is intended for
6257 generating Makefiles. See mallocsrc.
6258 "mallocsrc"
6260 From mallocsrc.U:
6261 This variable contains the name of the malloc.c that comes with the
6263 package, if that malloc.c is preferred over the system malloc.
6264 Otherwise the value is null. This variable is intended for
6265 generating Makefiles.
6266 "malloctype"
6268 From mallocsrc.U:
6269 This variable contains the kind of ptr returned by malloc and
6271 realloc.
6272 "man1dir"
6274 From man1dir.U:
6275 This variable contains the name of the directory in which manual
6277 source pages are to be put. It is the responsibility of the
6278 Makefile.SH to get the value of this into the proper command. You
6279 must be prepared to do the ~name expansion yourself.
6280 "man1direxp"
6282 From man1dir.U:
6283 This variable is the same as the man1dir variable, but is filename
6285 expanded at configuration time, for convenient use in makefiles.
6286 "man1ext"
6288 From man1dir.U:
6289 This variable contains the extension that the manual page should
6291 have: one of "n", "l", or 1. The Makefile must supply the .. See
6292 man1dir.
6293 "man3dir"
6295 From man3dir.U:
6296 This variable contains the name of the directory in which manual
6298 source pages are to be put. It is the responsibility of the
6299 Makefile.SH to get the value of this into the proper command. You
6300 must be prepared to do the ~name expansion yourself.
6301 "man3direxp"
6303 From man3dir.U:
6304 This variable is the same as the man3dir variable, but is filename
6306 expanded at configuration time, for convenient use in makefiles.
6307 "man3ext"
6309 From man3dir.U:
6310 This variable contains the extension that the manual page should
6312 have: one of "n", "l", or 3. The Makefile must supply the .. See
6313 man3dir.
6314 "mips_type"
6316 From usrinc.U:
6317 This variable holds the environment type for the mips system.
6319 Possible values are "BSD 4.3" and "System V".
6320 "mistrustnm"
6322 From Csym.U:
6323 This variable can be used to establish a fallthrough for the cases
6325 where nm fails to find a symbol. If usenm is false or usenm is
6326 true and mistrustnm is false, this variable has no effect. If
6327 usenm is true and mistrustnm is "compile", a test program will be
6328 compiled to try to find any symbol that can't be located via nm
6329 lookup. If mistrustnm is "run", the test program will be run as
6330 well as being compiled.
6331 "mkdir"
6333 From Loc.U:
6334 This variable is used internally by Configure to determine the full
6336 pathname (if any) of the mkdir program. After Configure runs, the
6337 value is reset to a plain "mkdir" and is not useful.
6338 "mmaptype"
6340 From d_mmap.U:
6341 This symbol contains the type of pointer returned by mmap() (and
6343 simultaneously the type of the first argument). It can be "void *"
6344 or "caddr_t".
6345 "modetype"
6347 From modetype.U:
6348 This variable defines modetype to be something like mode_t, int,
6350 unsigned short, or whatever type is used to declare file modes for
6351 system calls.
6352 "more"
6354 From Loc.U:
6355 This variable is used internally by Configure to determine the full
6357 pathname (if any) of the more program. After Configure runs, the
6358 value is reset to a plain "more" and is not useful.
6359 "multiarch"
6361 From multiarch.U:
6362 This variable conditionally defines the "MULTIARCH" symbol which
6364 signifies the presence of multiplatform files. This is normally
6365 set by hints files.
6366 "mv"
6368 From Loc.U:
6369 This variable is defined but not used by Configure. The value is
6371 the empty string and is not useful.
6372 "myarchname"
6374 From archname.U:
6375 This variable holds the architecture name computed by Configure in
6377 a previous run. It is not intended to be perused by any user and
6378 should never be set in a hint file.
6379 "mydomain"
6381 From myhostname.U:
6382 This variable contains the eventual value of the "MYDOMAIN" symbol,
6384 which is the domain of the host the program is going to run on.
6385 The domain must be appended to myhostname to form a complete host
6386 name. The dot comes with mydomain, and need not be supplied by the
6387 program.
6388 "myhostname"
6390 From myhostname.U:
6391 This variable contains the eventual value of the "MYHOSTNAME"
6393 symbol, which is the name of the host the program is going to run
6394 on. The domain is not kept with hostname, but must be gotten from
6395 mydomain. The dot comes with mydomain, and need not be supplied by
6396 the program.
6397 "myuname"
6399 From Oldconfig.U:
6400 The output of "uname -a" if available, otherwise the hostname. The
6402 whole thing is then lower-cased and slashes and single quotes are
6403 removed.
6404 n
6406 "n" From n.U:
6407 This variable contains the "-n" flag if that is what causes the
6409 echo command to suppress newline. Otherwise it is null. Correct
6410 usage is $echo $n "prompt for a question: $c".
6411 "need_va_copy"
6413 From need_va_copy.U:
6414 This symbol, if defined, indicates that the system stores the
6416 variable argument list datatype, va_list, in a format that cannot
6417 be copied by simple assignment, so that some other means must be
6418 used when copying is required. As such systems vary in their
6419 provision (or non-provision) of copying mechanisms, handy.h defines
6420 a platform- "independent" macro, Perl_va_copy(src, dst), to do the
6421 job.
6422 "netdb_hlen_type"
6424 From netdbtype.U:
6425 This variable holds the type used for the 2nd argument to
6427 gethostbyaddr(). Usually, this is int or size_t or unsigned. This
6428 is only useful if you have gethostbyaddr(), naturally.
6429 "netdb_host_type"
6431 From netdbtype.U:
6432 This variable holds the type used for the 1st argument to
6434 gethostbyaddr(). Usually, this is char * or void *, possibly with
6435 or without a const prefix. This is only useful if you have
6436 gethostbyaddr(), naturally.
6437 "netdb_name_type"
6439 From netdbtype.U:
6440 This variable holds the type used for the argument to
6442 gethostbyname(). Usually, this is char * or const char *. This is
6443 only useful if you have gethostbyname(), naturally.
6444 "netdb_net_type"
6446 From netdbtype.U:
6447 This variable holds the type used for the 1st argument to
6449 getnetbyaddr(). Usually, this is int or long. This is only useful
6450 if you have getnetbyaddr(), naturally.
6451 "nm"
6453 From Loc.U:
6454 This variable is used internally by Configure to determine the full
6456 pathname (if any) of the nm program. After Configure runs, the
6457 value is reset to a plain "nm" and is not useful.
6458 "nm_opt"
6460 From usenm.U:
6461 This variable holds the options that may be necessary for nm.
6463 "nm_so_opt"
6465 From usenm.U:
6466 This variable holds the options that may be necessary for nm to
6468 work on a shared library but that can not be used on an archive
6469 library. Currently, this is only used by Linux, where nm --dynamic
6470 is *required* to get symbols from an "ELF" library which has been
6471 stripped, but nm --dynamic is *fatal* on an archive library. Maybe
6472 Linux should just always set usenm=false.
6473 "nonxs_ext"
6475 From Extensions.U:
6476 This variable holds a list of all non-xs extensions built and
6478 installed by the package. By default, all non-xs extensions
6479 distributed will be built, with the exception of platform-specific
6480 extensions (currently only one "VMS" specific extension).
6481 "nroff"
6483 From Loc.U:
6484 This variable is used internally by Configure to determine the full
6486 pathname (if any) of the nroff program. After Configure runs, the
6487 value is reset to a plain "nroff" and is not useful.
6488 "nv_overflows_integers_at"
6490 From perlxv.U:
6491 This variable gives the largest integer value that NVs can hold as
6493 a constant floating point expression. If it could not be
6494 determined, it holds the value 0.
6495 "nv_preserves_uv_bits"
6497 From perlxv.U:
6498 This variable indicates how many of bits type uvtype a variable
6500 nvtype can preserve.
6501 "nveformat"
6503 From perlxvf.U:
6504 This variable contains the format string used for printing a Perl
6506 "NV" using %e-ish floating point format.
6507 "nvEUformat"
6509 From perlxvf.U:
6510 This variable contains the format string used for printing a Perl
6512 "NV" using %E-ish floating point format.
6513 "nvfformat"
6515 From perlxvf.U:
6516 This variable contains the format string used for printing a Perl
6518 "NV" using %f-ish floating point format.
6519 "nvFUformat"
6521 From perlxvf.U:
6522 This variable contains the format string used for printing a Perl
6524 "NV" using %F-ish floating point format.
6525 "nvgformat"
6527 From perlxvf.U:
6528 This variable contains the format string used for printing a Perl
6530 "NV" using %g-ish floating point format.
6531 "nvGUformat"
6533 From perlxvf.U:
6534 This variable contains the format string used for printing a Perl
6536 "NV" using %G-ish floating point format.
6537 "nvmantbits"
6539 From mantbits.U:
6540 This variable tells how many bits the mantissa of a Perl "NV" has,
6542 not including the possible implicit bit.
6543 "nvsize"
6545 From perlxv.U:
6546 This variable is the size of a Perl "NV" in bytes. Note that some
6548 floating point formats have unused bytes.
6549 "nvtype"
6551 From perlxv.U:
6552 This variable contains the C type used for Perl's "NV".
6554 o
6556 "o_nonblock"
6557 From nblock_io.U:
6558 This variable bears the symbol value to be used during open() or
6560 fcntl() to turn on non-blocking I/O for a file descriptor. If you
6561 wish to switch between blocking and non-blocking, you may try
6562 ioctl("FIOSNBIO") instead, but that is only supported by some
6563 devices.
6564 "obj_ext"
6566 From Unix.U:
6567 This is an old synonym for _o.
6569 "old_pthread_create_joinable"
6571 From d_pthrattrj.U:
6572 This variable defines the constant to use for creating joinable
6574 (aka undetached) pthreads. Unused if pthread.h defines
6575 "PTHREAD_CREATE_JOINABLE". If used, possible values are
6576 "PTHREAD_CREATE_UNDETACHED" and "__UNDETACHED".
6577 "optimize"
6579 From ccflags.U:
6580 This variable contains any optimizer/debugger flag that should be
6582 used. It is up to the Makefile to use it.
6583 "orderlib"
6585 From orderlib.U:
6586 This variable is "true" if the components of libraries must be
6588 ordered (with `lorder $* | tsort`) before placing them in an
6589 archive. Set to "false" if ranlib or ar can generate random
6590 libraries.
6591 "osname"
6593 From Oldconfig.U:
6594 This variable contains the operating system name (e.g. sunos,
6596 solaris, hpux, etc.). It can be useful later on for setting
6597 defaults. Any spaces are replaced with underscores. It is set to
6598 a null string if we can't figure it out.
6599 "osvers"
6601 From Oldconfig.U:
6602 This variable contains the operating system version (e.g. 4.1.3,
6604 5.2, etc.). It is primarily used for helping select an appropriate
6605 hints file, but might be useful elsewhere for setting defaults. It
6606 is set to '' if we can't figure it out. We try to be flexible
6607 about how much of the version number to keep, e.g. if 4.1.1, 4.1.2,
6608 and 4.1.3 are essentially the same for this package, hints files
6609 might just be os_4.0 or os_4.1, etc., not keeping separate files
6610 for each little release.
6611 "otherlibdirs"
6613 From otherlibdirs.U:
6614 This variable contains a colon-separated set of paths for the perl
6616 binary to search for additional library files or modules. These
6617 directories will be tacked to the end of @"INC". Perl will
6618 automatically search below each path for version- and architecture-
6619 specific directories. See inc_version_list for more details. A
6620 value of " " means "none" and is used to preserve this value for
6621 the next run through Configure.
6622 p
6624 "package"
6625 From package.U:
6626 This variable contains the name of the package being constructed.
6628 It is primarily intended for the use of later Configure units.
6629 "pager"
6631 From pager.U:
6632 This variable contains the name of the preferred pager on the
6634 system. Usual values are (the full pathnames of) more, less, pg,
6635 or cat.
6636 "passcat"
6638 From nis.U:
6639 This variable contains a command that produces the text of the
6641 /etc/passwd file. This is normally "cat /etc/passwd", but can be
6642 "ypcat passwd" when "NIS" is used. On some systems, such as os390,
6643 there may be no equivalent command, in which case this variable is
6644 unset.
6645 "patchlevel"
6647 From patchlevel.U:
6648 The patchlevel level of this package. The value of patchlevel
6650 comes from the patchlevel.h file. In a version number such as
6651 5.6.1, this is the 6. In patchlevel.h, this is referred to as
6652 "PERL_VERSION".
6653 "path_sep"
6655 From Unix.U:
6656 This is an old synonym for p_ in Head.U, the character used to
6658 separate elements in the command shell search "PATH".
6659 "perl"
6661 From Loc.U:
6662 This variable is used internally by Configure to determine the full
6664 pathname (if any) of the perl program. After Configure runs, the
6665 value is reset to a plain "perl" and is not useful.
6666 "perl5"
6668 From perl5.U:
6669 This variable contains the full path (if any) to a previously
6671 installed perl5.005 or later suitable for running the script to
6672 determine inc_version_list.
6673 P
6675 "PERL_API_REVISION"
6676 From patchlevel.h:
6677 This number describes the earliest compatible "PERL_REVISION" of
6679 Perl ("compatibility" here being defined as sufficient binary/"API"
6680 compatibility to run "XS" code built with the older version).
6681 Normally this does not change across maintenance releases. Please
6682 read the comment in patchlevel.h.
6683 "PERL_API_SUBVERSION"
6685 From patchlevel.h:
6686 This number describes the earliest compatible "PERL_SUBVERSION" of
6688 Perl ("compatibility" here being defined as sufficient binary/"API"
6689 compatibility to run "XS" code built with the older version).
6690 Normally this does not change across maintenance releases. Please
6691 read the comment in patchlevel.h.
6692 "PERL_API_VERSION"
6694 From patchlevel.h:
6695 This number describes the earliest compatible "PERL_VERSION" of
6697 Perl ("compatibility" here being defined as sufficient binary/"API"
6698 compatibility to run "XS" code built with the older version).
6699 Normally this does not change across maintenance releases. Please
6700 read the comment in patchlevel.h.
6701 "PERL_CONFIG_SH"
6703 From Oldsyms.U:
6704 This is set to "true" in config.sh so that a shell script sourcing
6706 config.sh can tell if it has been sourced already.
6707 "PERL_PATCHLEVEL"
6709 From Oldsyms.U:
6710 This symbol reflects the patchlevel, if available. Will usually
6712 come from the .patch file, which is available when the perl source
6713 tree was fetched with rsync.
6714 "perl_patchlevel"
6716 From patchlevel.U:
6717 This is the Perl patch level, a numeric change identifier, as
6719 defined by whichever source code maintenance system is used to
6720 maintain the patches; currently Perforce. It does not correlate
6721 with the Perl version numbers or the maintenance versus development
6722 dichotomy except by also being increasing.
6723 "PERL_REVISION"
6725 From Oldsyms.U:
6726 In a Perl version number such as 5.6.2, this is the 5. This value
6728 is manually set in patchlevel.h
6729 "perl_static_inline"
6731 From d_static_inline.U:
6732 This variable defines the "PERL_STATIC_INLINE" symbol to the best-
6734 guess incantation to use for static inline functions.
6735 Possibilities include static inline (c99) static __inline__
6736 (gcc -ansi) static __inline ("MSVC") static _inline (older
6737 "MSVC") static (c89 compilers)
6738 "PERL_SUBVERSION"
6740 From Oldsyms.U:
6741 In a Perl version number such as 5.6.2, this is the 2. Values
6743 greater than 50 represent potentially unstable development
6744 subversions. This value is manually set in patchlevel.h
6745 "PERL_VERSION"
6747 From Oldsyms.U:
6748 In a Perl version number such as 5.6.2, this is the 6. This value
6750 is manually set in patchlevel.h
6751 "perladmin"
6753 From perladmin.U:
6754 Electronic mail address of the perl5 administrator.
6756 "perllibs"
6758 From End.U:
6759 The list of libraries needed by Perl only (any libraries needed by
6761 extensions only will by dropped, if using dynamic loading).
6762 "perlpath"
6764 From perlpath.U:
6765 This variable contains the eventual value of the "PERLPATH" symbol,
6767 which contains the name of the perl interpreter to be used in shell
6768 scripts and in the "eval "exec"" idiom. This variable is not
6769 necessarily the pathname of the file containing the perl
6770 interpreter; you must append the executable extension (_exe) if it
6771 is not already present. Note that Perl code that runs during the
6772 Perl build process cannot reference this variable, as Perl may not
6773 have been installed, or even if installed, may be a different
6774 version of Perl.
6775 "pg"
6777 From Loc.U:
6778 This variable is used internally by Configure to determine the full
6780 pathname (if any) of the pg program. After Configure runs, the
6781 value is reset to a plain "pg" and is not useful.
6782 "phostname"
6784 From myhostname.U:
6785 This variable contains the eventual value of the "PHOSTNAME"
6787 symbol, which is a command that can be fed to popen() to get the
6788 host name. The program should probably not presume that the domain
6789 is or isn't there already.
6790 "pidtype"
6792 From pidtype.U:
6793 This variable defines "PIDTYPE" to be something like pid_t, int,
6795 ushort, or whatever type is used to declare process ids in the
6796 kernel.
6797 "plibpth"
6799 From libpth.U:
6800 Holds the private path used by Configure to find out the libraries.
6802 Its value is prepend to libpth. This variable takes care of special
6803 machines, like the mips. Usually, it should be empty.
6804 "pmake"
6806 From Loc.U:
6807 This variable is defined but not used by Configure. The value is
6809 the empty string and is not useful.
6810 "pr"
6812 From Loc.U:
6813 This variable is defined but not used by Configure. The value is
6815 the empty string and is not useful.
6816 "prefix"
6818 From prefix.U:
6819 This variable holds the name of the directory below which the user
6821 will install the package. Usually, this is /usr/local, and
6822 executables go in /usr/local/bin, library stuff in /usr/local/lib,
6823 man pages in /usr/local/man, etc. It is only used to set defaults
6824 for things in bin.U, mansrc.U, privlib.U, or scriptdir.U.
6825 "prefixexp"
6827 From prefix.U:
6828 This variable holds the full absolute path of the directory below
6830 which the user will install the package. Derived from prefix.
6831 "privlib"
6833 From privlib.U:
6834 This variable contains the eventual value of the "PRIVLIB" symbol,
6836 which is the name of the private library for this package. It may
6837 have a ~ on the front. It is up to the makefile to eventually
6838 create this directory while performing installation (with ~
6839 substitution).
6840 "privlibexp"
6842 From privlib.U:
6843 This variable is the ~name expanded version of privlib, so that you
6845 may use it directly in Makefiles or shell scripts.
6846 "procselfexe"
6848 From d_procselfexe.U:
6849 If d_procselfexe is defined, $procselfexe is the filename of the
6851 symbolic link pointing to the absolute pathname of the executing
6852 program.
6853 "ptrsize"
6855 From ptrsize.U:
6856 This variable contains the value of the "PTRSIZE" symbol, which
6858 indicates to the C program how many bytes there are in a pointer.
6859 q
6861 "quadkind"
6862 From quadtype.U:
6863 This variable, if defined, encodes the type of a quad: 1 = int, 2 =
6865 long, 3 = long long, 4 = int64_t.
6866 "quadtype"
6868 From quadtype.U:
6869 This variable defines Quad_t to be something like long, int, long
6871 long, int64_t, or whatever type is used for 64-bit integers.
6872 r
6874 "randbits"
6875 From randfunc.U:
6876 Indicates how many bits are produced by the function used to
6878 generate normalized random numbers.
6879 "randfunc"
6881 From randfunc.U:
6882 Indicates the name of the random number function to use. Values
6884 include drand48, random, and rand. In C programs, the "Drand01"
6885 macro is defined to generate uniformly distributed random numbers
6886 over the range [0., 1.[ (see drand01 and nrand).
6887 "random_r_proto"
6889 From d_random_r.U:
6890 This variable encodes the prototype of random_r. It is zero if
6892 d_random_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
6893 of reentr.h if d_random_r is defined.
6894 "randseedtype"
6896 From randfunc.U:
6897 Indicates the type of the argument of the seedfunc.
6899 "ranlib"
6901 From orderlib.U:
6902 This variable is set to the pathname of the ranlib program, if it
6904 is needed to generate random libraries. Set to ":" if ar can
6905 generate random libraries or if random libraries are not supported
6906 "rd_nodata"
6908 From nblock_io.U:
6909 This variable holds the return code from read() when no data is
6911 present. It should be -1, but some systems return 0 when "O_NDELAY"
6912 is used, which is a shame because you cannot make the difference
6913 between no data and an EOF.. Sigh!
6914 "readdir64_r_proto"
6916 From d_readdir64_r.U:
6917 This variable encodes the prototype of readdir64_r. It is zero if
6919 d_readdir64_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
6920 macros of reentr.h if d_readdir64_r is defined.
6921 "readdir_r_proto"
6923 From d_readdir_r.U:
6924 This variable encodes the prototype of readdir_r. It is zero if
6926 d_readdir_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
6927 of reentr.h if d_readdir_r is defined.
6928 "revision"
6930 From patchlevel.U:
6931 The value of revision comes from the patchlevel.h file. In a
6933 version number such as 5.6.1, this is the 5. In patchlevel.h, this
6934 is referred to as "PERL_REVISION".
6935 "rm"
6937 From Loc.U:
6938 This variable is used internally by Configure to determine the full
6940 pathname (if any) of the rm program. After Configure runs, the
6941 value is reset to a plain "rm" and is not useful.
6942 "rm_try"
6944 From Unix.U:
6945 This is a cleanup variable for try test programs. Internal
6947 Configure use only.
6948 "rmail"
6950 From Loc.U:
6951 This variable is defined but not used by Configure. The value is
6953 the empty string and is not useful.
6954 "run"
6956 From Cross.U:
6957 This variable contains the command used by Configure to copy and
6959 execute a cross-compiled executable in the target host. Useful and
6960 available only during Perl build. Empty string '' if not cross-
6961 compiling.
6962 "runnm"
6964 From usenm.U:
6965 This variable contains "true" or "false" depending whether the nm
6967 extraction should be performed or not, according to the value of
6968 usenm and the flags on the Configure command line.
6969 s
6971 "sched_yield"
6972 From d_pthread_y.U:
6973 This variable defines the way to yield the execution of the current
6975 thread.
6976 "scriptdir"
6978 From scriptdir.U:
6979 This variable holds the name of the directory in which the user
6981 wants to put publicly scripts for the package in question. It is
6982 either the same directory as for binaries, or a special one that
6983 can be mounted across different architectures, like /usr/share.
6984 Programs must be prepared to deal with ~name expansion.
6985 "scriptdirexp"
6987 From scriptdir.U:
6988 This variable is the same as scriptdir, but is filename expanded at
6990 configuration time, for programs not wanting to bother with it.
6991 "sed"
6993 From Loc.U:
6994 This variable is used internally by Configure to determine the full
6996 pathname (if any) of the sed program. After Configure runs, the
6997 value is reset to a plain "sed" and is not useful.
6998 "seedfunc"
7000 From randfunc.U:
7001 Indicates the random number generating seed function. Values
7003 include srand48, srandom, and srand.
7004 "selectminbits"
7006 From selectminbits.U:
7007 This variable holds the minimum number of bits operated by select.
7009 That is, if you do select(n, ...), how many bits at least will be
7010 cleared in the masks if some activity is detected. Usually this is
7011 either n or 32*ceil(n/32), especially many little-endians do the
7012 latter. This is only useful if you have select(), naturally.
7013 "selecttype"
7015 From selecttype.U:
7016 This variable holds the type used for the 2nd, 3rd, and 4th
7018 arguments to select. Usually, this is "fd_set *", if "HAS_FD_SET"
7019 is defined, and "int *" otherwise. This is only useful if you have
7020 select(), naturally.
7021 "sendmail"
7023 From Loc.U:
7024 This variable is defined but not used by Configure. The value is
7026 the empty string and is not useful.
7027 "setgrent_r_proto"
7029 From d_setgrent_r.U:
7030 This variable encodes the prototype of setgrent_r. It is zero if
7032 d_setgrent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7033 macros of reentr.h if d_setgrent_r is defined.
7034 "sethostent_r_proto"
7036 From d_sethostent_r.U:
7037 This variable encodes the prototype of sethostent_r. It is zero if
7039 d_sethostent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7040 macros of reentr.h if d_sethostent_r is defined.
7041 "setlocale_r_proto"
7043 From d_setlocale_r.U:
7044 This variable encodes the prototype of setlocale_r. It is zero if
7046 d_setlocale_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7047 macros of reentr.h if d_setlocale_r is defined.
7048 "setnetent_r_proto"
7050 From d_setnetent_r.U:
7051 This variable encodes the prototype of setnetent_r. It is zero if
7053 d_setnetent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7054 macros of reentr.h if d_setnetent_r is defined.
7055 "setprotoent_r_proto"
7057 From d_setprotoent_r.U:
7058 This variable encodes the prototype of setprotoent_r. It is zero
7060 if d_setprotoent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7061 macros of reentr.h if d_setprotoent_r is defined.
7062 "setpwent_r_proto"
7064 From d_setpwent_r.U:
7065 This variable encodes the prototype of setpwent_r. It is zero if
7067 d_setpwent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7068 macros of reentr.h if d_setpwent_r is defined.
7069 "setservent_r_proto"
7071 From d_setservent_r.U:
7072 This variable encodes the prototype of setservent_r. It is zero if
7074 d_setservent_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7075 macros of reentr.h if d_setservent_r is defined.
7076 "sGMTIME_max"
7078 From time_size.U:
7079 This variable defines the maximum value of the time_t offset that
7081 the system function gmtime () accepts
7082 "sGMTIME_min"
7084 From time_size.U:
7085 This variable defines the minimum value of the time_t offset that
7087 the system function gmtime () accepts
7088 "sh"
7090 From sh.U:
7091 This variable contains the full pathname of the shell used on this
7093 system to execute Bourne shell scripts. Usually, this will be
7094 /bin/sh, though it's possible that some systems will have /bin/ksh,
7095 /bin/pdksh, /bin/ash, /bin/bash, or even something such as
7096 D:/bin/sh.exe. This unit comes before Options.U, so you can't set
7097 sh with a "-D" option, though you can override this (and startsh)
7098 with "-O -Dsh=/bin/whatever -Dstartsh=whatever"
7099 "shar"
7101 From Loc.U:
7102 This variable is defined but not used by Configure. The value is
7104 the empty string and is not useful.
7105 "sharpbang"
7107 From spitshell.U:
7108 This variable contains the string #! if this system supports that
7110 construct.
7111 "shmattype"
7113 From d_shmat.U:
7114 This symbol contains the type of pointer returned by shmat(). It
7116 can be "void *" or "char *".
7117 "shortsize"
7119 From intsize.U:
7120 This variable contains the value of the "SHORTSIZE" symbol which
7122 indicates to the C program how many bytes there are in a short.
7123 "shrpenv"
7125 From libperl.U:
7126 If the user builds a shared libperl.so, then we need to tell the
7128 "perl" executable where it will be able to find the installed
7129 libperl.so. One way to do this on some systems is to set the
7130 environment variable "LD_RUN_PATH" to the directory that will be
7131 the final location of the shared libperl.so. The makefile can use
7132 this with something like $shrpenv $("CC") -o perl perlmain.o
7133 $libperl $libs Typical values are shrpenv="env
7134 "LD_RUN_PATH"=$archlibexp/"CORE"" or shrpenv='' See the main perl
7135 Makefile.SH for actual working usage.
7136 Alternatively, we might be able to use a command line option such
7138 as -R $archlibexp/"CORE" (Solaris) or -Wl,-rpath $archlibexp/"CORE"
7139 (Linux).
7140 "shsharp"
7142 From spitshell.U:
7143 This variable tells further Configure units whether your sh can
7145 handle # comments.
7146 "sig_count"
7148 From sig_name.U:
7149 This variable holds a number larger than the largest valid signal
7151 number. This is usually the same as the "NSIG" macro.
7152 "sig_name"
7154 From sig_name.U:
7155 This variable holds the signal names, space separated. The leading
7157 "SIG" in signal name is removed. A "ZERO" is prepended to the
7158 list. This is currently not used, sig_name_init is used instead.
7159 "sig_name_init"
7161 From sig_name.U:
7162 This variable holds the signal names, enclosed in double quotes and
7164 separated by commas, suitable for use in the "SIG_NAME" definition
7165 below. A "ZERO" is prepended to the list, and the list is
7166 terminated with a plain 0. The leading "SIG" in signal names is
7167 removed. See sig_num.
7168 "sig_num"
7170 From sig_name.U:
7171 This variable holds the signal numbers, space separated. A "ZERO"
7173 is prepended to the list (corresponding to the fake "SIGZERO").
7174 Those numbers correspond to the value of the signal listed in the
7175 same place within the sig_name list. This is currently not used,
7176 sig_num_init is used instead.
7177 "sig_num_init"
7179 From sig_name.U:
7180 This variable holds the signal numbers, enclosed in double quotes
7182 and separated by commas, suitable for use in the "SIG_NUM"
7183 definition below. A "ZERO" is prepended to the list, and the list
7184 is terminated with a plain 0.
7185 "sig_size"
7187 From sig_name.U:
7188 This variable contains the number of elements of the sig_name and
7190 sig_num arrays.
7191 "signal_t"
7193 From d_voidsig.U:
7194 This variable holds the type of the signal handler (void or int).
7196 "sitearch"
7198 From sitearch.U:
7199 This variable contains the eventual value of the "SITEARCH" symbol,
7201 which is the name of the private library for this package. It may
7202 have a ~ on the front. It is up to the makefile to eventually
7203 create this directory while performing installation (with ~
7204 substitution). The standard distribution will put nothing in this
7205 directory. After perl has been installed, users may install their
7206 own local architecture-dependent modules in this directory with
7207 MakeMaker Makefile.PL or equivalent. See "INSTALL" for details.
7208 "sitearchexp"
7210 From sitearch.U:
7211 This variable is the ~name expanded version of sitearch, so that
7213 you may use it directly in Makefiles or shell scripts.
7214 "sitebin"
7216 From sitebin.U:
7217 This variable holds the name of the directory in which the user
7219 wants to put add-on publicly executable files for the package in
7220 question. It is most often a local directory such as
7221 /usr/local/bin. Programs using this variable must be prepared to
7222 deal with ~name substitution. The standard distribution will put
7223 nothing in this directory. After perl has been installed, users
7224 may install their own local executables in this directory with
7225 MakeMaker Makefile.PL or equivalent. See "INSTALL" for details.
7226 "sitebinexp"
7228 From sitebin.U:
7229 This is the same as the sitebin variable, but is filename expanded
7231 at configuration time, for use in your makefiles.
7232 "sitehtml1dir"
7234 From sitehtml1dir.U:
7235 This variable contains the name of the directory in which site-
7237 specific html source pages are to be put. It is the responsibility
7238 of the Makefile.SH to get the value of this into the proper
7239 command. You must be prepared to do the ~name expansion yourself.
7240 The standard distribution will put nothing in this directory.
7241 After perl has been installed, users may install their own local
7242 html pages in this directory with MakeMaker Makefile.PL or
7243 equivalent. See "INSTALL" for details.
7244 "sitehtml1direxp"
7246 From sitehtml1dir.U:
7247 This variable is the same as the sitehtml1dir variable, but is
7249 filename expanded at configuration time, for convenient use in
7250 makefiles.
7251 "sitehtml3dir"
7253 From sitehtml3dir.U:
7254 This variable contains the name of the directory in which site-
7256 specific library html source pages are to be put. It is the
7257 responsibility of the Makefile.SH to get the value of this into the
7258 proper command. You must be prepared to do the ~name expansion
7259 yourself. The standard distribution will put nothing in this
7260 directory. After perl has been installed, users may install their
7261 own local library html pages in this directory with MakeMaker
7262 Makefile.PL or equivalent. See "INSTALL" for details.
7263 "sitehtml3direxp"
7265 From sitehtml3dir.U:
7266 This variable is the same as the sitehtml3dir variable, but is
7268 filename expanded at configuration time, for convenient use in
7269 makefiles.
7270 "sitelib"
7272 From sitelib.U:
7273 This variable contains the eventual value of the "SITELIB" symbol,
7275 which is the name of the private library for this package. It may
7276 have a ~ on the front. It is up to the makefile to eventually
7277 create this directory while performing installation (with ~
7278 substitution). The standard distribution will put nothing in this
7279 directory. After perl has been installed, users may install their
7280 own local architecture-independent modules in this directory with
7281 MakeMaker Makefile.PL or equivalent. See "INSTALL" for details.
7282 "sitelib_stem"
7284 From sitelib.U:
7285 This variable is $sitelibexp with any trailing version-specific
7287 component removed. The elements in inc_version_list
7288 (inc_version_list.U) can be tacked onto this variable to generate a
7289 list of directories to search.
7290 "sitelibexp"
7292 From sitelib.U:
7293 This variable is the ~name expanded version of sitelib, so that you
7295 may use it directly in Makefiles or shell scripts.
7296 "siteman1dir"
7298 From siteman1dir.U:
7299 This variable contains the name of the directory in which site-
7301 specific manual source pages are to be put. It is the
7302 responsibility of the Makefile.SH to get the value of this into the
7303 proper command. You must be prepared to do the ~name expansion
7304 yourself. The standard distribution will put nothing in this
7305 directory. After perl has been installed, users may install their
7306 own local man1 pages in this directory with MakeMaker Makefile.PL
7307 or equivalent. See "INSTALL" for details.
7308 "siteman1direxp"
7310 From siteman1dir.U:
7311 This variable is the same as the siteman1dir variable, but is
7313 filename expanded at configuration time, for convenient use in
7314 makefiles.
7315 "siteman3dir"
7317 From siteman3dir.U:
7318 This variable contains the name of the directory in which site-
7320 specific library man source pages are to be put. It is the
7321 responsibility of the Makefile.SH to get the value of this into the
7322 proper command. You must be prepared to do the ~name expansion
7323 yourself. The standard distribution will put nothing in this
7324 directory. After perl has been installed, users may install their
7325 own local man3 pages in this directory with MakeMaker Makefile.PL
7326 or equivalent. See "INSTALL" for details.
7327 "siteman3direxp"
7329 From siteman3dir.U:
7330 This variable is the same as the siteman3dir variable, but is
7332 filename expanded at configuration time, for convenient use in
7333 makefiles.
7334 "siteprefix"
7336 From siteprefix.U:
7337 This variable holds the full absolute path of the directory below
7339 which the user will install add-on packages. See "INSTALL" for
7340 usage and examples.
7341 "siteprefixexp"
7343 From siteprefix.U:
7344 This variable holds the full absolute path of the directory below
7346 which the user will install add-on packages. Derived from
7347 siteprefix.
7348 "sitescript"
7350 From sitescript.U:
7351 This variable holds the name of the directory in which the user
7353 wants to put add-on publicly executable files for the package in
7354 question. It is most often a local directory such as
7355 /usr/local/bin. Programs using this variable must be prepared to
7356 deal with ~name substitution. The standard distribution will put
7357 nothing in this directory. After perl has been installed, users
7358 may install their own local scripts in this directory with
7359 MakeMaker Makefile.PL or equivalent. See "INSTALL" for details.
7360 "sitescriptexp"
7362 From sitescript.U:
7363 This is the same as the sitescript variable, but is filename
7365 expanded at configuration time, for use in your makefiles.
7366 "sizesize"
7368 From sizesize.U:
7369 This variable contains the size of a sizetype in bytes.
7371 "sizetype"
7373 From sizetype.U:
7374 This variable defines sizetype to be something like size_t,
7376 unsigned long, or whatever type is used to declare length
7377 parameters for string functions.
7378 "sleep"
7380 From Loc.U:
7381 This variable is defined but not used by Configure. The value is
7383 the empty string and is not useful.
7384 "sLOCALTIME_max"
7386 From time_size.U:
7387 This variable defines the maximum value of the time_t offset that
7389 the system function localtime () accepts
7390 "sLOCALTIME_min"
7392 From time_size.U:
7393 This variable defines the minimum value of the time_t offset that
7395 the system function localtime () accepts
7396 "smail"
7398 From Loc.U:
7399 This variable is defined but not used by Configure. The value is
7401 the empty string and is not useful.
7402 "so"
7404 From so.U:
7405 This variable holds the extension used to identify shared libraries
7407 (also known as shared objects) on the system. Usually set to "so".
7408 "sockethdr"
7410 From d_socket.U:
7411 This variable has any cpp "-I" flags needed for socket support.
7413 "socketlib"
7415 From d_socket.U:
7416 This variable has the names of any libraries needed for socket
7418 support.
7419 "socksizetype"
7421 From socksizetype.U:
7422 This variable holds the type used for the size argument for various
7424 socket calls like accept. Usual values include socklen_t, size_t,
7425 and int.
7426 "sort"
7428 From Loc.U:
7429 This variable is used internally by Configure to determine the full
7431 pathname (if any) of the sort program. After Configure runs, the
7432 value is reset to a plain "sort" and is not useful.
7433 "spackage"
7435 From package.U:
7436 This variable contains the name of the package being constructed,
7438 with the first letter uppercased, i.e. suitable for starting
7439 sentences.
7440 "spitshell"
7442 From spitshell.U:
7443 This variable contains the command necessary to spit out a runnable
7445 shell on this system. It is either cat or a grep "-v" for #
7446 comments.
7447 "sPRId64"
7449 From quadfio.U:
7450 This variable, if defined, contains the string used by stdio to
7452 format 64-bit decimal numbers (format "d") for output.
7453 "sPRIeldbl"
7455 From longdblfio.U:
7456 This variable, if defined, contains the string used by stdio to
7458 format long doubles (format "e") for output.
7459 "sPRIEUldbl"
7461 From longdblfio.U:
7462 This variable, if defined, contains the string used by stdio to
7464 format long doubles (format "E") for output. The "U" in the name
7465 is to separate this from sPRIeldbl so that even case-blind systems
7466 can see the difference.
7467 "sPRIfldbl"
7469 From longdblfio.U:
7470 This variable, if defined, contains the string used by stdio to
7472 format long doubles (format "f") for output.
7473 "sPRIFUldbl"
7475 From longdblfio.U:
7476 This variable, if defined, contains the string used by stdio to
7478 format long doubles (format "F") for output. The "U" in the name
7479 is to separate this from sPRIfldbl so that even case-blind systems
7480 can see the difference.
7481 "sPRIgldbl"
7483 From longdblfio.U:
7484 This variable, if defined, contains the string used by stdio to
7486 format long doubles (format "g") for output.
7487 "sPRIGUldbl"
7489 From longdblfio.U:
7490 This variable, if defined, contains the string used by stdio to
7492 format long doubles (format "G") for output. The "U" in the name
7493 is to separate this from sPRIgldbl so that even case-blind systems
7494 can see the difference.
7495 "sPRIi64"
7497 From quadfio.U:
7498 This variable, if defined, contains the string used by stdio to
7500 format 64-bit decimal numbers (format "i") for output.
7501 "sPRIo64"
7503 From quadfio.U:
7504 This variable, if defined, contains the string used by stdio to
7506 format 64-bit octal numbers (format "o") for output.
7507 "sPRIu64"
7509 From quadfio.U:
7510 This variable, if defined, contains the string used by stdio to
7512 format 64-bit unsigned decimal numbers (format "u") for output.
7513 "sPRIx64"
7515 From quadfio.U:
7516 This variable, if defined, contains the string used by stdio to
7518 format 64-bit hexadecimal numbers (format "x") for output.
7519 "sPRIXU64"
7521 From quadfio.U:
7522 This variable, if defined, contains the string used by stdio to
7524 format 64-bit hExADECimAl numbers (format "X") for output. The "U"
7525 in the name is to separate this from sPRIx64 so that even case-
7526 blind systems can see the difference.
7527 "srand48_r_proto"
7529 From d_srand48_r.U:
7530 This variable encodes the prototype of srand48_r. It is zero if
7532 d_srand48_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
7533 of reentr.h if d_srand48_r is defined.
7534 "srandom_r_proto"
7536 From d_srandom_r.U:
7537 This variable encodes the prototype of srandom_r. It is zero if
7539 d_srandom_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
7540 of reentr.h if d_srandom_r is defined.
7541 "src"
7543 From src.U:
7544 This variable holds the (possibly relative) path of the package
7546 source. It is up to the Makefile to use this variable and set
7547 "VPATH" accordingly to find the sources remotely. Use $pkgsrc to
7548 have an absolute path.
7549 "sSCNfldbl"
7551 From longdblfio.U:
7552 This variable, if defined, contains the string used by stdio to
7554 format long doubles (format "f") for input.
7555 "ssizetype"
7557 From ssizetype.U:
7558 This variable defines ssizetype to be something like ssize_t, long
7560 or int. It is used by functions that return a count of bytes or an
7561 error condition. It must be a signed type. We will pick a type
7562 such that sizeof(SSize_t) == sizeof(Size_t).
7563 "st_ino_sign"
7565 From st_ino_def.U:
7566 This variable contains the signedness of struct stat's st_ino. 1
7568 for unsigned, -1 for signed.
7569 "st_ino_size"
7571 From st_ino_def.U:
7572 This variable contains the size of struct stat's st_ino in bytes.
7574 "startperl"
7576 From startperl.U:
7577 This variable contains the string to put on the front of a perl
7579 script to make sure (hopefully) that it runs with perl and not some
7580 shell. Of course, that leading line must be followed by the
7581 classical perl idiom: eval 'exec perl -S $0 ${1+$@}' if
7582 $running_under_some_shell; to guarantee perl startup should the
7583 shell execute the script. Note that this magic incantation is not
7584 understood by csh.
7585 "startsh"
7587 From startsh.U:
7588 This variable contains the string to put on the front of a shell
7590 script to make sure (hopefully) that it runs with sh and not some
7591 other shell.
7592 "static_ext"
7594 From Extensions.U:
7595 This variable holds a list of "XS" extension files we want to link
7597 statically into the package. It is used by Makefile.
7598 "stdchar"
7600 From stdchar.U:
7601 This variable conditionally defines "STDCHAR" to be the type of
7603 char used in stdio.h. It has the values "unsigned char" or "char".
7604 "stdio_base"
7606 From d_stdstdio.U:
7607 This variable defines how, given a "FILE" pointer, fp, to access
7609 the _base field (or equivalent) of stdio.h's "FILE" structure.
7610 This will be used to define the macro FILE_base(fp).
7611 "stdio_bufsiz"
7613 From d_stdstdio.U:
7614 This variable defines how, given a "FILE" pointer, fp, to determine
7616 the number of bytes store in the I/O buffer pointer to by the _base
7617 field (or equivalent) of stdio.h's "FILE" structure. This will be
7618 used to define the macro FILE_bufsiz(fp).
7619 "stdio_cnt"
7621 From d_stdstdio.U:
7622 This variable defines how, given a "FILE" pointer, fp, to access
7624 the _cnt field (or equivalent) of stdio.h's "FILE" structure. This
7625 will be used to define the macro FILE_cnt(fp).
7626 "stdio_filbuf"
7628 From d_stdstdio.U:
7629 This variable defines how, given a "FILE" pointer, fp, to tell
7631 stdio to refill its internal buffers (?). This will be used to
7632 define the macro FILE_filbuf(fp).
7633 "stdio_ptr"
7635 From d_stdstdio.U:
7636 This variable defines how, given a "FILE" pointer, fp, to access
7638 the _ptr field (or equivalent) of stdio.h's "FILE" structure. This
7639 will be used to define the macro FILE_ptr(fp).
7640 "stdio_stream_array"
7642 From stdio_streams.U:
7643 This variable tells the name of the array holding the stdio
7645 streams. Usual values include _iob, __iob, and __sF.
7646 "strerror_r_proto"
7648 From d_strerror_r.U:
7649 This variable encodes the prototype of strerror_r. It is zero if
7651 d_strerror_r is undef, and one of the "REENTRANT_PROTO_T_ABC"
7652 macros of reentr.h if d_strerror_r is defined.
7653 "submit"
7655 From Loc.U:
7656 This variable is defined but not used by Configure. The value is
7658 the empty string and is not useful.
7659 "subversion"
7661 From patchlevel.U:
7662 The subversion level of this package. The value of subversion
7664 comes from the patchlevel.h file. In a version number such as
7665 5.6.1, this is the 1. In patchlevel.h, this is referred to as
7666 "PERL_SUBVERSION". This is unique to perl.
7667 "sysman"
7669 From sysman.U:
7670 This variable holds the place where the manual is located on this
7672 system. It is not the place where the user wants to put his manual
7673 pages. Rather it is the place where Configure may look to find
7674 manual for unix commands (section 1 of the manual usually). See
7675 mansrc.
7676 "sysroot"
7678 From Sysroot.U:
7679 This variable is empty unless supplied by the Configure user. It
7681 can contain a path to an alternative root directory, under which
7682 headers and libraries for the compilation target can be found. This
7683 is generally used when cross-compiling using a gcc-like compiler.
7684 t
7686 "tail"
7687 From Loc.U:
7688 This variable is defined but not used by Configure. The value is
7690 the empty string and is not useful.
7691 "tar"
7693 From Loc.U:
7694 This variable is defined but not used by Configure. The value is
7696 the empty string and is not useful.
7697 "targetarch"
7699 From Cross.U:
7700 If cross-compiling, this variable contains the target architecture.
7702 If not, this will be empty.
7703 "targetdir"
7705 From Cross.U:
7706 This variable contains a path that will be created on the target
7708 host using targetmkdir, and then used to copy the cross-compiled
7709 executables to. Defaults to /tmp if not set.
7710 "targetenv"
7712 From Cross.U:
7713 If cross-compiling, this variable can be used to modify the
7715 environment on the target system. However, how and where it's
7716 used, and even if it's used at all, is entirely dependent on both
7717 the transport mechanism (targetrun) and what the target system is.
7718 Unless the relevant documentation says otherwise, it is genereally
7719 not useful.
7720 "targethost"
7722 From Cross.U:
7723 This variable contains the name of a separate host machine that can
7725 be used to run compiled test programs and perl tests on. Set to
7726 empty string if not in use.
7727 "targetmkdir"
7729 From Cross.U:
7730 This variable contains the command used by Configure to create a
7732 new directory on the target host.
7733 "targetport"
7735 From Cross.U:
7736 This variable contains the number of a network port to be used to
7738 connect to the host in targethost, if unset defaults to 22 for ssh.
7739 "targetsh"
7741 From sh.U:
7742 If cross-compiling, this variable contains the location of sh on
7744 the target system. If not, this will be the same as $sh.
7745 "tbl"
7747 From Loc.U:
7748 This variable is defined but not used by Configure. The value is
7750 the empty string and is not useful.
7751 "tee"
7753 From Loc.U:
7754 This variable is defined but not used by Configure. The value is
7756 the empty string and is not useful.
7757 "test"
7759 From Loc.U:
7760 This variable is used internally by Configure to determine the full
7762 pathname (if any) of the test program. After Configure runs, the
7763 value is reset to a plain "test" and is not useful.
7764 "timeincl"
7766 From i_time.U:
7767 This variable holds the full path of the included time header(s).
7769 "timetype"
7771 From d_time.U:
7772 This variable holds the type returned by time(). It can be long, or
7774 time_t on "BSD" sites (in which case <sys/types.h> should be
7775 included). Anyway, the type Time_t should be used.
7776 "tmpnam_r_proto"
7778 From d_tmpnam_r.U:
7779 This variable encodes the prototype of tmpnam_r. It is zero if
7781 d_tmpnam_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
7782 of reentr.h if d_tmpnam_r is defined.
7783 "to"
7785 From Cross.U:
7786 This variable contains the command used by Configure to copy to
7788 from the target host. Useful and available only during Perl build.
7789 The string ":" if not cross-compiling.
7790 "touch"
7792 From Loc.U:
7793 This variable is used internally by Configure to determine the full
7795 pathname (if any) of the touch program. After Configure runs, the
7796 value is reset to a plain "touch" and is not useful.
7797 "tr"
7799 From Loc.U:
7800 This variable is used internally by Configure to determine the full
7802 pathname (if any) of the tr program. After Configure runs, the
7803 value is reset to a plain "tr" and is not useful.
7804 "trnl"
7806 From trnl.U:
7807 This variable contains the value to be passed to the tr(1) command
7809 to transliterate a newline. Typical values are "\012" and "\n".
7810 This is needed for "EBCDIC" systems where newline is not
7811 necessarily "\012".
7812 "troff"
7814 From Loc.U:
7815 This variable is defined but not used by Configure. The value is
7817 the empty string and is not useful.
7818 "ttyname_r_proto"
7820 From d_ttyname_r.U:
7821 This variable encodes the prototype of ttyname_r. It is zero if
7823 d_ttyname_r is undef, and one of the "REENTRANT_PROTO_T_ABC" macros
7824 of reentr.h if d_ttyname_r is defined.
7825 u
7827 "u16size"
7828 From perlxv.U:
7829 This variable is the size of an U16 in bytes.
7831 "u16type"
7833 From perlxv.U:
7834 This variable contains the C type used for Perl's U16.
7836 "u32size"
7838 From perlxv.U:
7839 This variable is the size of an U32 in bytes.
7841 "u32type"
7843 From perlxv.U:
7844 This variable contains the C type used for Perl's U32.
7846 "u64size"
7848 From perlxv.U:
7849 This variable is the size of an U64 in bytes.
7851 "u64type"
7853 From perlxv.U:
7854 This variable contains the C type used for Perl's U64.
7856 "u8size"
7858 From perlxv.U:
7859 This variable is the size of an U8 in bytes.
7861 "u8type"
7863 From perlxv.U:
7864 This variable contains the C type used for Perl's U8.
7866 "uidformat"
7868 From uidf.U:
7869 This variable contains the format string used for printing a Uid_t.
7871 "uidsign"
7873 From uidsign.U:
7874 This variable contains the signedness of a uidtype. 1 for
7876 unsigned, -1 for signed.
7877 "uidsize"
7879 From uidsize.U:
7880 This variable contains the size of a uidtype in bytes.
7882 "uidtype"
7884 From uidtype.U:
7885 This variable defines Uid_t to be something like uid_t, int,
7887 ushort, or whatever type is used to declare user ids in the kernel.
7888 "uname"
7890 From Loc.U:
7891 This variable is used internally by Configure to determine the full
7893 pathname (if any) of the uname program. After Configure runs, the
7894 value is reset to a plain "uname" and is not useful.
7895 "uniq"
7897 From Loc.U:
7898 This variable is used internally by Configure to determine the full
7900 pathname (if any) of the uniq program. After Configure runs, the
7901 value is reset to a plain "uniq" and is not useful.
7902 "uquadtype"
7904 From quadtype.U:
7905 This variable defines Uquad_t to be something like unsigned long,
7907 unsigned int, unsigned long long, uint64_t, or whatever type is
7908 used for 64-bit integers.
7909 "use5005threads"
7911 From usethreads.U:
7912 This variable conditionally defines the USE_5005THREADS symbol, and
7914 indicates that Perl should be built to use the 5.005-based
7915 threading implementation. Only valid up to 5.8.x.
7916 "use64bitall"
7918 From use64bits.U:
7919 This variable conditionally defines the USE_64_BIT_ALL symbol, and
7921 indicates that 64-bit integer types should be used when available.
7922 The maximal possible 64-bitness is employed: LP64 or ILP64, meaning
7923 that you will be able to use more than 2 gigabytes of memory. This
7924 mode is even more binary incompatible than USE_64_BIT_INT. You may
7925 not be able to run the resulting executable in a 32-bit "CPU" at
7926 all or you may need at least to reboot your "OS" to 64-bit mode.
7927 "use64bitint"
7929 From use64bits.U:
7930 This variable conditionally defines the USE_64_BIT_INT symbol, and
7932 indicates that 64-bit integer types should be used when available.
7933 The minimal possible 64-bitness is employed, just enough to get
7934 64-bit integers into Perl. This may mean using for example "long
7935 longs", while your memory may still be limited to 2 gigabytes.
7936 "usecbacktrace"
7938 From usebacktrace.U:
7939 This variable indicates whether we are compiling with backtrace
7941 support.
7942 "usecrosscompile"
7944 From Cross.U:
7945 This variable conditionally defines the "USE_CROSS_COMPILE" symbol,
7947 and indicates that Perl has been cross-compiled.
7948 "usedevel"
7950 From Devel.U:
7951 This variable indicates that Perl was configured with development
7953 features enabled. This should not be done for production builds.
7954 "usedl"
7956 From dlsrc.U:
7957 This variable indicates if the system supports dynamic loading of
7959 some sort. See also dlsrc and dlobj.
7960 "usedtrace"
7962 From usedtrace.U:
7963 This variable indicates whether we are compiling with dtrace
7965 support. See also dtrace.
7966 "usefaststdio"
7968 From usefaststdio.U:
7969 This variable conditionally defines the "USE_FAST_STDIO" symbol,
7971 and indicates that Perl should be built to use "fast stdio".
7972 Defaults to define in Perls 5.8 and earlier, to undef later.
7973 "useithreads"
7975 From usethreads.U:
7976 This variable conditionally defines the "USE_ITHREADS" symbol, and
7978 indicates that Perl should be built to use the interpreter-based
7979 threading implementation.
7980 "usekernprocpathname"
7982 From usekernprocpathname.U:
7983 This variable, indicates that we can use sysctl with
7985 "KERN_PROC_PATHNAME" to get a full path for the executable, and
7986 hence convert $^X to an absolute path.
7987 "uselanginfo"
7989 From Extensions.U:
7990 This variable holds either "true" or "false" to indicate whether
7992 the I18N::Langinfo extension should be used. The sole use for this
7993 currently is to allow an easy mechanism for users to skip this
7994 extension from the Configure command line.
7995 "uselargefiles"
7997 From uselfs.U:
7998 This variable conditionally defines the "USE_LARGE_FILES" symbol,
8000 and indicates that large file interfaces should be used when
8001 available.
8002 "uselongdouble"
8004 From uselongdbl.U:
8005 This variable conditionally defines the "USE_LONG_DOUBLE" symbol,
8007 and indicates that long doubles should be used when available.
8008 "usemallocwrap"
8010 From mallocsrc.U:
8011 This variable contains y if we are wrapping malloc to prevent
8013 integer overflow during size calculations.
8014 "usemorebits"
8016 From usemorebits.U:
8017 This variable conditionally defines the "USE_MORE_BITS" symbol, and
8019 indicates that explicit 64-bit interfaces and long doubles should
8020 be used when available.
8021 "usemultiplicity"
8023 From usemultiplicity.U:
8024 This variable conditionally defines the "MULTIPLICITY" symbol, and
8026 indicates that Perl should be built to use multiplicity.
8027 "usemymalloc"
8029 From mallocsrc.U:
8030 This variable contains y if the malloc that comes with this package
8032 is desired over the system's version of malloc. People often
8033 include special versions of malloc for efficiency, but such
8034 versions are often less portable. See also mallocsrc and
8035 mallocobj. If this is "y", then -lmalloc is removed from $libs.
8036 "usenm"
8038 From usenm.U:
8039 This variable contains "true" or "false" depending whether the nm
8041 extraction is wanted or not.
8042 "usensgetexecutablepath"
8044 From usensgetexecutablepath.U:
8045 This symbol, if defined, indicates that we can use
8047 _NSGetExecutablePath and realpath to get a full path for the
8048 executable, and hence convert $^X to an absolute path.
8049 "useopcode"
8051 From Extensions.U:
8052 This variable holds either "true" or "false" to indicate whether
8054 the Opcode extension should be used. The sole use for this
8055 currently is to allow an easy mechanism for users to skip the
8056 Opcode extension from the Configure command line.
8057 "useperlio"
8059 From useperlio.U:
8060 This variable conditionally defines the "USE_PERLIO" symbol, and
8062 indicates that the PerlIO abstraction should be used throughout.
8063 "useposix"
8065 From Extensions.U:
8066 This variable holds either "true" or "false" to indicate whether
8068 the "POSIX" extension should be used. The sole use for this
8069 currently is to allow an easy mechanism for hints files to indicate
8070 that "POSIX" will not compile on a particular system.
8071 "usequadmath"
8073 From usequadmath.U:
8074 This variable conditionally defines the "USE_QUADMATH" symbol, and
8076 indicates that the quadmath library __float128 long doubles should
8077 be used when available.
8078 "usereentrant"
8080 From usethreads.U:
8081 This variable conditionally defines the "USE_REENTRANT_API" symbol,
8083 which indicates that the thread code may try to use the various _r
8084 versions of library functions. This is only potentially meaningful
8085 if usethreads is set and is very experimental, it is not even
8086 prompted for.
8087 "userelocatableinc"
8089 From bin.U:
8090 This variable is set to true to indicate that perl should relocate
8092 @"INC" entries at runtime based on the path to the perl binary.
8093 Any @"INC" paths starting .../ are relocated relative to the
8094 directory containing the perl binary, and a logical cleanup of the
8095 path is then made around the join point (removing dir/../ pairs)
8096 "useshrplib"
8098 From libperl.U:
8099 This variable is set to "true" if the user wishes to build a shared
8101 libperl, and "false" otherwise.
8102 "usesitecustomize"
8104 From d_sitecustomize.U:
8105 This variable is set to true when the user requires a mechanism
8107 that allows the sysadmin to add entries to @"INC" at runtime. This
8108 variable being set, makes perl run $sitelib/sitecustomize.pl at
8109 startup.
8110 "usesocks"
8112 From usesocks.U:
8113 This variable conditionally defines the "USE_SOCKS" symbol, and
8115 indicates that Perl should be built to use "SOCKS".
8116 "usethreads"
8118 From usethreads.U:
8119 This variable conditionally defines the "USE_THREADS" symbol, and
8121 indicates that Perl should be built to use threads.
8122 "usevendorprefix"
8124 From vendorprefix.U:
8125 This variable tells whether the vendorprefix and consequently other
8127 vendor* paths are in use.
8128 "useversionedarchname"
8130 From archname.U:
8131 This variable indicates whether to include the $api_versionstring
8133 as a component of the $archname.
8134 "usevfork"
8136 From d_vfork.U:
8137 This variable is set to true when the user accepts to use vfork.
8139 It is set to false when no vfork is available or when the user
8140 explicitly requests not to use vfork.
8141 "usrinc"
8143 From usrinc.U:
8144 This variable holds the path of the include files, which is usually
8146 /usr/include. It is mainly used by other Configure units.
8147 "uuname"
8149 From Loc.U:
8150 This variable is defined but not used by Configure. The value is
8152 the empty string and is not useful.
8153 "uvoformat"
8155 From perlxvf.U:
8156 This variable contains the format string used for printing a Perl
8158 "UV" as an unsigned octal integer.
8159 "uvsize"
8161 From perlxv.U:
8162 This variable is the size of a "UV" in bytes.
8164 "uvtype"
8166 From perlxv.U:
8167 This variable contains the C type used for Perl's "UV".
8169 "uvuformat"
8171 From perlxvf.U:
8172 This variable contains the format string used for printing a Perl
8174 "UV" as an unsigned decimal integer.
8175 "uvxformat"
8177 From perlxvf.U:
8178 This variable contains the format string used for printing a Perl
8180 "UV" as an unsigned hexadecimal integer in lowercase abcdef.
8181 "uvXUformat"
8183 From perlxvf.U:
8184 This variable contains the format string used for printing a Perl
8186 "UV" as an unsigned hexadecimal integer in uppercase "ABCDEF".
8187 v
8189 "vendorarch"
8190 From vendorarch.U:
8191 This variable contains the value of the "PERL_VENDORARCH" symbol.
8193 It may have a ~ on the front. The standard distribution will put
8194 nothing in this directory. Vendors who distribute perl may wish to
8195 place their own architecture-dependent modules and extensions in
8196 this directory with MakeMaker Makefile.PL "INSTALLDIRS"=vendor or
8197 equivalent. See "INSTALL" for details.
8198 "vendorarchexp"
8200 From vendorarch.U:
8201 This variable is the ~name expanded version of vendorarch, so that
8203 you may use it directly in Makefiles or shell scripts.
8204 "vendorbin"
8206 From vendorbin.U:
8207 This variable contains the eventual value of the "VENDORBIN"
8209 symbol. It may have a ~ on the front. The standard distribution
8210 will put nothing in this directory. Vendors who distribute perl
8211 may wish to place additional binaries in this directory with
8212 MakeMaker Makefile.PL "INSTALLDIRS"=vendor or equivalent. See
8213 "INSTALL" for details.
8214 "vendorbinexp"
8216 From vendorbin.U:
8217 This variable is the ~name expanded version of vendorbin, so that
8219 you may use it directly in Makefiles or shell scripts.
8220 "vendorhtml1dir"
8222 From vendorhtml1dir.U:
8223 This variable contains the name of the directory for html pages.
8225 It may have a ~ on the front. The standard distribution will put
8226 nothing in this directory. Vendors who distribute perl may wish to
8227 place their own html pages in this directory with MakeMaker
8228 Makefile.PL "INSTALLDIRS"=vendor or equivalent. See "INSTALL" for
8229 details.
8230 "vendorhtml1direxp"
8232 From vendorhtml1dir.U:
8233 This variable is the ~name expanded version of vendorhtml1dir, so
8235 that you may use it directly in Makefiles or shell scripts.
8236 "vendorhtml3dir"
8238 From vendorhtml3dir.U:
8239 This variable contains the name of the directory for html library
8241 pages. It may have a ~ on the front. The standard distribution
8242 will put nothing in this directory. Vendors who distribute perl
8243 may wish to place their own html pages for modules and extensions
8244 in this directory with MakeMaker Makefile.PL "INSTALLDIRS"=vendor
8245 or equivalent. See "INSTALL" for details.
8246 "vendorhtml3direxp"
8248 From vendorhtml3dir.U:
8249 This variable is the ~name expanded version of vendorhtml3dir, so
8251 that you may use it directly in Makefiles or shell scripts.
8252 "vendorlib"
8254 From vendorlib.U:
8255 This variable contains the eventual value of the "VENDORLIB"
8257 symbol, which is the name of the private library for this package.
8258 The standard distribution will put nothing in this directory.
8259 Vendors who distribute perl may wish to place their own modules in
8260 this directory with MakeMaker Makefile.PL "INSTALLDIRS"=vendor or
8261 equivalent. See "INSTALL" for details.
8262 "vendorlib_stem"
8264 From vendorlib.U:
8265 This variable is $vendorlibexp with any trailing version-specific
8267 component removed. The elements in inc_version_list
8268 (inc_version_list.U) can be tacked onto this variable to generate a
8269 list of directories to search.
8270 "vendorlibexp"
8272 From vendorlib.U:
8273 This variable is the ~name expanded version of vendorlib, so that
8275 you may use it directly in Makefiles or shell scripts.
8276 "vendorman1dir"
8278 From vendorman1dir.U:
8279 This variable contains the name of the directory for man1 pages.
8281 It may have a ~ on the front. The standard distribution will put
8282 nothing in this directory. Vendors who distribute perl may wish to
8283 place their own man1 pages in this directory with MakeMaker
8284 Makefile.PL "INSTALLDIRS"=vendor or equivalent. See "INSTALL" for
8285 details.
8286 "vendorman1direxp"
8288 From vendorman1dir.U:
8289 This variable is the ~name expanded version of vendorman1dir, so
8291 that you may use it directly in Makefiles or shell scripts.
8292 "vendorman3dir"
8294 From vendorman3dir.U:
8295 This variable contains the name of the directory for man3 pages.
8297 It may have a ~ on the front. The standard distribution will put
8298 nothing in this directory. Vendors who distribute perl may wish to
8299 place their own man3 pages in this directory with MakeMaker
8300 Makefile.PL "INSTALLDIRS"=vendor or equivalent. See "INSTALL" for
8301 details.
8302 "vendorman3direxp"
8304 From vendorman3dir.U:
8305 This variable is the ~name expanded version of vendorman3dir, so
8307 that you may use it directly in Makefiles or shell scripts.
8308 "vendorprefix"
8310 From vendorprefix.U:
8311 This variable holds the full absolute path of the directory below
8313 which the vendor will install add-on packages. See "INSTALL" for
8314 usage and examples.
8315 "vendorprefixexp"
8317 From vendorprefix.U:
8318 This variable holds the full absolute path of the directory below
8320 which the vendor will install add-on packages. Derived from
8321 vendorprefix.
8322 "vendorscript"
8324 From vendorscript.U:
8325 This variable contains the eventual value of the "VENDORSCRIPT"
8327 symbol. It may have a ~ on the front. The standard distribution
8328 will put nothing in this directory. Vendors who distribute perl
8329 may wish to place additional executable scripts in this directory
8330 with MakeMaker Makefile.PL "INSTALLDIRS"=vendor or equivalent. See
8331 "INSTALL" for details.
8332 "vendorscriptexp"
8334 From vendorscript.U:
8335 This variable is the ~name expanded version of vendorscript, so
8337 that you may use it directly in Makefiles or shell scripts.
8338 "version"
8340 From patchlevel.U:
8341 The full version number of this package, such as 5.6.1 (or 5_6_1).
8343 This combines revision, patchlevel, and subversion to get the full
8344 version number, including any possible subversions. This is
8345 suitable for use as a directory name, and hence is filesystem
8346 dependent.
8347 "version_patchlevel_string"
8349 From patchlevel.U:
8350 This is a string combining version, subversion and perl_patchlevel
8352 (if perl_patchlevel is non-zero). It is typically something like
8353 'version 7 subversion 1' or 'version 7 subversion 1 patchlevel
8354 11224' It is computed here to avoid duplication of code in
8355 myconfig.SH and lib/Config.pm.
8356 "versiononly"
8358 From versiononly.U:
8359 If set, this symbol indicates that only the version-specific
8361 components of a perl installation should be installed. This may be
8362 useful for making a test installation of a new version without
8363 disturbing the existing installation. Setting versiononly is
8364 equivalent to setting installperl's -v option. In particular, the
8365 non-versioned scripts and programs such as a2p, c2ph, h2xs, pod2*,
8366 and perldoc are not installed (see "INSTALL" for a more complete
8367 list). Nor are the man pages installed. Usually, this is undef.
8368 "vi"
8370 From Loc.U:
8371 This variable is defined but not used by Configure. The value is
8373 the empty string and is not useful.
8374 x
8376 "xlibpth"
8377 From libpth.U:
8378 This variable holds extra path (space-separated) used to find
8380 libraries on this platform, for example "CPU"-specific libraries
8381 (on multi-"CPU" platforms) may be listed here.
8382 y
8384 "yacc"
8385 From yacc.U:
8386 This variable holds the name of the compiler compiler we want to
8388 use in the Makefile. It can be yacc, byacc, or bison -y.
8389 "yaccflags"
8391 From yacc.U:
8392 This variable contains any additional yacc flags desired by the
8394 user. It is up to the Makefile to use this.
8395 z
8397 "zcat"
8398 From Loc.U:
8399 This variable is defined but not used by Configure. The value is
8401 the empty string and is not useful.
8402 "zip"
8404 From Loc.U:
8405 This variable is used internally by Configure to determine the full
8407 pathname (if any) of the zip program. After Configure runs, the
8408 value is reset to a plain "zip" and is not useful.
8409
8411 Information on the git commit from which the current perl binary was
8412 compiled can be found in the variable $Config::Git_Data. The variable
8413 is a structured string that looks something like this:
8414 git_commit_id='ea0c2dbd5f5ac6845ecc7ec6696415bf8e27bd52'
8416 git_describe='GitLive-blead-1076-gea0c2db'
8417 git_branch='smartmatch'
8418 git_uncommitted_changes=''
8419 git_commit_id_title='Commit id:'
8420 git_commit_date='2009-05-09 17:47:31 +0200'
8421 Its format is not guaranteed not to change over time.
8423
8425 This module contains a good example of how to use tie to implement a
8426 cache and an example of how to make a tied variable readonly to those
8427 outside of it.
8428perl v5.30.1 2019-11-29 Config(3pm)