2 !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
3 This file is built by metaconfig.
5 This file contains a description of all the shell variables whose value is
6 determined by the Configure script. Variables intended for use in C
7 programs (e.g. I_UNISTD) are already described in config_h.SH. [`configpm'
8 generates pod documentation for Config.pm from this file--please try to keep
9 the formatting regular.]
12 This variable defines the extension used for ordinary library files.
13 For unix, it is '.a'. The '.' is included. Other possible
14 values include '.lib'.
17 This variable defines the extension used for executable files.
18 DJGPP, Cygwin and OS/2 use '.exe'. Stratus VOS uses '.pm'.
19 On operating systems which do not require a specific extension
20 for executable files, this variable is empty.
23 This variable defines the extension used for object files.
24 For unix, it is '.o'. The '.' is included. Other possible
25 values include '.obj'.
28 This variable is set to 'true' if AFS (Andrew File System) is used
29 on the system, 'false' otherwise. It is possible to override this
30 with a hint value or command line option, but you'd better know
34 This variable is by default set to '/afs'. In the unlikely case
35 this is not the correct root, it is possible to override this with
36 a hint value or command line option. This will be used in subsequent
37 tests for AFSness in the configure and test process.
39 alignbytes (alignbytes.U):
40 This variable holds the number of bytes required to align a
41 double-- or a long double when applicable. Usual values are
42 2, 4 and 8. The default is eight, for safety.
44 ansi2knr (ansi2knr.U):
45 This variable is set if the user needs to run ansi2knr.
46 Currently, this is not supported, so we just abort.
48 aphostname (d_gethname.U):
49 This variable contains the command which can be used to compute the
50 host name. The command is fully qualified by its absolute path, to make
51 it safe when used by a process with super-user privileges.
53 api_revision (patchlevel.U):
54 The three variables, api_revision, api_version, and
55 api_subversion, specify the version of the oldest perl binary
56 compatible with the present perl. In a full version string
57 such as '5.6.1', api_revision is the '5'.
58 Prior to 5.5.640, the format was a floating point number,
61 perl.c:incpush() and lib/lib.pm will automatically search in
62 $sitelib/.. for older directories back to the limit specified
63 by these api_ variables. This is only useful if you have a
64 perl library directory tree structured like the default one.
65 See INSTALL for how this works. The versioned site_perl
66 directory was introduced in 5.005, so that is the lowest
67 possible value. The version list appropriate for the current
68 system is determined in inc_version_list.U.
70 XXX To do: Since compatibility can depend on compile time
71 options (such as bincompat, longlong, etc.) it should
72 (perhaps) be set by Configure, but currently it isn't.
73 Currently, we read a hard-wired value from patchlevel.h.
74 Perhaps what we ought to do is take the hard-wired value from
75 patchlevel.h but then modify it if the current Configure
76 options warrant. patchlevel.h then would use an #ifdef guard.
78 api_subversion (patchlevel.U):
79 The three variables, api_revision, api_version, and
80 api_subversion, specify the version of the oldest perl binary
81 compatible with the present perl. In a full version string
82 such as '5.6.1', api_subversion is the '1'. See api_revision for
85 api_version (patchlevel.U):
86 The three variables, api_revision, api_version, and
87 api_subversion, specify the version of the oldest perl binary
88 compatible with the present perl. In a full version string
89 such as '5.6.1', api_version is the '6'. See api_revision for
90 full details. As a special case, 5.5.0 is rendered in the
91 old-style as 5.005. (In the 5.005_0x maintenance series,
92 this was the only versioned directory in $sitelib.)
94 api_versionstring (patchlevel.U):
95 This variable combines api_revision, api_version, and
96 api_subversion in a format such as 5.6.1 (or 5_6_1) suitable
97 for use as a directory name. This is filesystem dependent.
100 This variable is used internally by Configure to determine the
101 full pathname (if any) of the ar program. After Configure runs,
102 the value is reset to a plain "ar" and is not useful.
105 This variable holds the name of the directory in which the user wants
106 to put architecture-dependent public library files for $package.
107 It is most often a local directory such as /usr/local/lib.
108 Programs using this variable must be prepared to deal
109 with filename expansion.
111 archlibexp (archlib.U):
112 This variable is the same as the archlib variable, but is
113 filename expanded at configuration time, for convenient use.
115 archname (archname.U):
116 This variable is a short name to characterize the current
117 architecture. It is used mainly to construct the default archlib.
119 archname64 (use64bits.U):
120 This variable is used for the 64-bitness part of $archname.
123 This variable defines any additional objects that must be linked
124 in with the program on this architecture. On unix, it is usually
125 empty. It is typically used to include emulations of unix calls
126 or other facilities. For perl on OS/2, for example, this would
129 asctime_r_proto (d_asctime_r.U):
130 This variable encodes the prototype of asctime_r.
131 It is zero if d_asctime_r is undef, and one of the
132 REENTRANT_PROTO_T_ABC macros of reentr.h if d_asctime_r
136 This variable is used internally by Configure to determine the
137 full pathname (if any) of the awk program. After Configure runs,
138 the value is reset to a plain "awk" and is not useful.
141 The base revision level of this package, from the .package file.
144 This variable is defined but not used by Configure.
145 The value is the empty string and is not useful.
148 This variable holds the name of the directory in which the user wants
149 to put publicly executable images for the package in question. It
150 is most often a local directory such as /usr/local/bin. Programs using
151 this variable must be prepared to deal with ~name substitution.
154 This variable saves the result from configure if generated binaries
155 are in ELF format. Only set to defined when the test has actually
156 been performed, and the result was positive.
159 This is the same as the bin variable, but is filename expanded at
160 configuration time, for use in your makefiles.
163 This variable is used internally by Configure to determine the
164 full pathname (if any) of the bison program. After Configure runs,
165 the value is reset to a plain "bison" and is not useful.
168 This variable is used internally by Configure to determine the
169 full pathname (if any) of the byacc program. After Configure runs,
170 the value is reset to a plain "byacc" and is not useful.
172 byteorder (byteorder.U):
173 This variable holds the byte order in a UV. In the following,
174 larger digits indicate more significance. The variable byteorder
175 is either 4321 on a big-endian machine, or 1234 on a little-endian,
176 or 87654321 on a Cray ... or 3412 with weird order !
179 This variable contains the \c string if that is what causes the echo
180 command to suppress newline. Otherwise it is null. Correct usage is
181 $echo $n "prompt for a question: $c".
183 castflags (d_castneg.U):
184 This variable contains a flag that precise difficulties the
185 compiler has casting odd floating values to unsigned long:
187 1 = couldn't cast < 0
188 2 = couldn't cast >= 0x80000000
189 4 = couldn't cast in argument expression list
192 This variable is used internally by Configure to determine the
193 full pathname (if any) of the cat program. After Configure runs,
194 the value is reset to a plain "cat" and is not useful.
197 This variable holds the name of a command to execute a C compiler which
198 can resolve multiple global references that happen to have the same
199 name. Usual values are 'cc' and 'gcc'.
200 Fervent ANSI compilers may be called 'c89'. AIX has xlc.
202 cccdlflags (dlsrc.U):
203 This variable contains any special flags that might need to be
204 passed with 'cc -c' to compile modules to be used to create a shared
205 library that will be used for dynamic loading. For hpux, this
206 should be +z. It is up to the makefile to use it.
209 This variable contains any special flags that might need to be
210 passed to cc to link with a shared library for dynamic loading.
211 It is up to the makefile to use it. For sunos 4.1, it should
215 This variable contains any additional C compiler flags desired by
216 the user. It is up to the Makefile to use this.
218 ccflags_uselargefiles (uselfs.U):
219 This variable contains the compiler flags needed by large file builds
220 and added to ccflags by hints files.
223 This can set either by hints files or by Configure. If using
224 gcc, this is gcc, and if not, usually equal to cc, unimpressive, no?
225 Some platforms, however, make good use of this by storing the
226 flavor of the C compiler being used here. For example if using
227 the Sun WorkShop suite, ccname will be 'workshop'.
229 ccsymbols (Cppsym.U):
230 The variable contains the symbols defined by the C compiler alone.
231 The symbols defined by cpp or by cc when it calls cpp are not in
232 this list, see cppsymbols and cppccsymbols.
233 The list is a space-separated list of symbol=value tokens.
235 ccversion (Checkcc.U):
236 This can set either by hints files or by Configure. If using
237 a (non-gcc) vendor cc, this variable may contain a version for
241 Login name of the person who ran the Configure script and answered the
242 questions. This is used to tag both config.sh and config_h.SH.
244 cf_email (cf_email.U):
245 Electronic mail address of the person who ran Configure. This can be
246 used by units that require the user's e-mail, like MailList.U.
249 Holds the output of the "date" command when the configuration file was
250 produced. This is used to tag both config.sh and config_h.SH.
252 charbits (charsize.U):
253 This variable contains the value of the CHARBITS symbol, which
254 indicates to the C program how many bits there are in a character.
256 charsize (charsize.U):
257 This variable contains the value of the CHARSIZE symbol, which
258 indicates to the C program how many bytes there are in a character.
261 This variable is defined but not used by Configure.
262 The value is the empty string and is not useful.
265 This variable is used internally by Configure to determine the
266 full pathname (if any) of the chmod program. After Configure runs,
267 the value is reset to a plain "chmod" and is not useful.
270 This variable is defined but not used by Configure.
271 The value is the empty string and is not useful.
273 clocktype (d_times.U):
274 This variable holds the type returned by times(). It can be long,
275 or clock_t on BSD sites (in which case <sys/types.h> should be
279 This variable is used internally by Configure to determine the
280 full pathname (if any) of the comm program. After Configure runs,
281 the value is reset to a plain "comm" and is not useful.
284 This variable is defined but not used by Configure.
285 The value is the empty string and is not useful.
287 config_arg0 (Options.U):
288 This variable contains the string used to invoke the Configure
289 command, as reported by the shell in the $0 variable.
291 config_argc (Options.U):
292 This variable contains the number of command-line arguments
293 passed to Configure, as reported by the shell in the $# variable.
294 The individual arguments are stored as variables config_arg1,
297 config_args (Options.U):
298 This variable contains a single string giving the command-line
299 arguments passed to Configure. Spaces within arguments,
300 quotes, and escaped characters are not correctly preserved.
301 To reconstruct the command line, you must assemble the individual
302 command line pieces, given in config_arg[0-9]*.
304 contains (contains.U):
305 This variable holds the command to do a grep with a proper return
306 status. On most sane systems it is simply "grep". On insane systems
307 it is a grep followed by a cat followed by a test. This variable
308 is primarily for the use of other Configure units.
311 This variable is used internally by Configure to determine the
312 full pathname (if any) of the cp program. After Configure runs,
313 the value is reset to a plain "cp" and is not useful.
316 This variable is defined but not used by Configure.
317 The value is the empty string and is not useful.
320 This variable is used internally by Configure to determine the
321 full pathname (if any) of the cpp program. After Configure runs,
322 the value is reset to a plain "cpp" and is not useful.
324 cpp_stuff (cpp_stuff.U):
325 This variable contains an identification of the concatenation mechanism
326 used by the C preprocessor.
328 cppccsymbols (Cppsym.U):
329 The variable contains the symbols defined by the C compiler
330 when it calls cpp. The symbols defined by the cc alone or cpp
331 alone are not in this list, see ccsymbols and cppsymbols.
332 The list is a space-separated list of symbol=value tokens.
334 cppflags (ccflags.U):
335 This variable holds the flags that will be passed to the C pre-
336 processor. It is up to the Makefile to use it.
338 cpplast (cppstdin.U):
339 This variable has the same functionality as cppminus, only it applies
340 to cpprun and not cppstdin.
342 cppminus (cppstdin.U):
343 This variable contains the second part of the string which will invoke
344 the C preprocessor on the standard input and produce to standard
345 output. This variable will have the value "-" if cppstdin needs
346 a minus to specify standard input, otherwise the value is "".
349 This variable contains the command which will invoke a C preprocessor
350 on standard input and put the output to stdout. It is guaranteed not
351 to be a wrapper and may be a null string if no preprocessor can be
352 made directly available. This preprocessor might be different from the
353 one used by the C compiler. Don't forget to append cpplast after the
354 preprocessor options.
356 cppstdin (cppstdin.U):
357 This variable contains the command which will invoke the C
358 preprocessor on standard input and put the output to stdout.
359 It is primarily used by other Configure units that ask about
360 preprocessor symbols.
362 cppsymbols (Cppsym.U):
363 The variable contains the symbols defined by the C preprocessor
364 alone. The symbols defined by cc or by cc when it calls cpp are
365 not in this list, see ccsymbols and cppccsymbols.
366 The list is a space-separated list of symbol=value tokens.
368 crypt_r_proto (d_crypt_r.U):
369 This variable encodes the prototype of crypt_r.
370 It is zero if d_crypt_r is undef, and one of the
371 REENTRANT_PROTO_T_ABC macros of reentr.h if d_crypt_r
374 cryptlib (d_crypt.U):
375 This variable holds -lcrypt or the path to a libcrypt.a archive if
376 the crypt() function is not defined in the standard C library. It is
377 up to the Makefile to use this.
380 This variable is used internally by Configure to determine the
381 full pathname (if any) of the csh program. After Configure runs,
382 the value is reset to a plain "csh" and is not useful.
384 ctermid_r_proto (d_ctermid_r.U):
385 This variable encodes the prototype of ctermid_r.
386 It is zero if d_ctermid_r is undef, and one of the
387 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ctermid_r
390 ctime_r_proto (d_ctime_r.U):
391 This variable encodes the prototype of ctime_r.
392 It is zero if d_ctime_r is undef, and one of the
393 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ctime_r
396 d__fwalk (d__fwalk.U):
397 This variable conditionally defines HAS__FWALK if _fwalk() is
398 available to apply a function to all the file handles.
400 d_access (d_access.U):
401 This variable conditionally defines HAS_ACCESS if the access() system
402 call is available to check for access permissions using real IDs.
404 d_accessx (d_accessx.U):
405 This variable conditionally defines the HAS_ACCESSX symbol, which
406 indicates to the C program that the accessx() routine is available.
409 This variable conditionally defines the HAS_ACOSH symbol, which
410 indicates to the C program that the acosh() routine is available.
413 This variable conditionally defines the HAS_AINTL symbol, which
414 indicates to the C program that the aintl() routine is available.
415 If copysignl is also present we can emulate modfl.
418 This variable conditionally defines the HAS_ALARM symbol, which
419 indicates to the C program that the alarm() routine is available.
421 d_archlib (archlib.U):
422 This variable conditionally defines ARCHLIB to hold the pathname
423 of architecture-dependent library files for $package. If
424 $archlib is the same as $privlib, then this is set to undef.
426 d_asctime64 (d_timefuncs64.U):
427 This variable conditionally defines the HAS_ASCTIME64 symbol, which
428 indicates to the C program that the asctime64 () routine is available.
430 d_asctime_r (d_asctime_r.U):
431 This variable conditionally defines the HAS_ASCTIME_R symbol,
432 which indicates to the C program that the asctime_r()
433 routine is available.
436 This variable conditionally defines the HAS_ASINH symbol, which
437 indicates to the C program that the asinh() routine is available.
440 This variable conditionally defines the HAS_ATANH symbol, which
441 indicates to the C program that the atanh() routine is available.
444 This variable conditionally defines the HAS_ATOLF symbol, which
445 indicates to the C program that the atolf() routine is available.
448 This variable conditionally defines the HAS_ATOLL symbol, which
449 indicates to the C program that the atoll() routine is available.
451 d_attribute_deprecated (d_attribut.U):
452 This variable conditionally defines HASATTRIBUTE_DEPRECATED, which
453 indicates that GCC can handle the attribute for marking deprecated
456 d_attribute_format (d_attribut.U):
457 This variable conditionally defines HASATTRIBUTE_FORMAT, which
458 indicates the C compiler can check for printf-like formats.
460 d_attribute_malloc (d_attribut.U):
461 This variable conditionally defines HASATTRIBUTE_MALLOC, which
462 indicates the C compiler can understand functions as having
463 malloc-like semantics.
465 d_attribute_nonnull (d_attribut.U):
466 This variable conditionally defines HASATTRIBUTE_NONNULL, which
467 indicates that the C compiler can know that certain arguments
468 must not be NULL, and will check accordingly at compile time.
470 d_attribute_noreturn (d_attribut.U):
471 This variable conditionally defines HASATTRIBUTE_NORETURN, which
472 indicates that the C compiler can know that certain functions
473 are guaranteed never to return.
475 d_attribute_pure (d_attribut.U):
476 This variable conditionally defines HASATTRIBUTE_PURE, which
477 indicates that the C compiler can know that certain functions
478 are "pure" functions, meaning that they have no side effects, and
479 only rely on function input and/or global data for their results.
481 d_attribute_unused (d_attribut.U):
482 This variable conditionally defines HASATTRIBUTE_UNUSED, which
483 indicates that the C compiler can know that certain variables
484 and arguments may not always be used, and to not throw warnings
485 if they don't get used.
487 d_attribute_warn_unused_result (d_attribut.U):
488 This variable conditionally defines
489 HASATTRIBUTE_WARN_UNUSED_RESULT, which indicates that the C
490 compiler can know that certain functions have a return values
491 that must not be ignored, such as malloc() or open().
493 d_backtrace (d_backtrace.U):
494 This variable conditionally defines the HAS_BACKTRACE symbol, which
495 indicates to the C program that the backtrace() routine is available
496 to get a stack trace.
499 This variable conditionally defines the HAS_BCMP symbol if
500 the bcmp() routine is available to compare strings.
503 This variable conditionally defines the HAS_BCOPY symbol if
504 the bcopy() routine is available to copy strings.
507 This symbol conditionally defines the symbol BSD when running on a
510 d_bsdgetpgrp (d_getpgrp.U):
511 This variable conditionally defines USE_BSD_GETPGRP if
512 getpgrp needs one arguments whereas USG one needs none.
514 d_bsdsetpgrp (d_setpgrp.U):
515 This variable conditionally defines USE_BSD_SETPGRP if
516 setpgrp needs two arguments whereas USG one needs none.
517 See also d_setpgid for a POSIX interface.
519 d_builtin_choose_expr (d_builtin.U):
520 This conditionally defines HAS_BUILTIN_CHOOSE_EXPR, which
521 indicates that the compiler supports __builtin_choose_expr(x,y,z).
522 This built-in function is analogous to the "x?y:z" operator in C,
523 except that the expression returned has its type unaltered by
524 promotion rules. Also, the built-in function does not evaluate
525 the expression that was not chosen.
527 d_builtin_expect (d_builtin.U):
528 This conditionally defines HAS_BUILTIN_EXPECT, which indicates
529 that the compiler supports __builtin_expect(exp,c). You may use
530 __builtin_expect to provide the compiler with branch prediction
534 This variable conditionally defines the HAS_BZERO symbol if
535 the bzero() routine is available to set memory to 0.
537 d_c99_variadic_macros (d_c99_variadic.U):
538 This variable conditionally defines the HAS_C99_VARIADIC_MACROS
539 symbol, which indicates to the C program that C99 variadic macros
542 d_casti32 (d_casti32.U):
543 This variable conditionally defines CASTI32, which indicates
544 whether the C compiler can cast large floats to 32-bit ints.
546 d_castneg (d_castneg.U):
547 This variable conditionally defines CASTNEG, which indicates
548 whether the C compiler can cast negative float to unsigned.
551 This variable conditionally defines the HAS_CBRT symbol, which
552 indicates to the C program that the cbrt() (cube root) function
555 d_charvspr (d_vprintf.U):
556 This variable conditionally defines CHARVSPRINTF if this system
557 has vsprintf returning type (char*). The trend seems to be to
558 declare it as "int vsprintf()".
561 This variable conditionally defines the HAS_CHOWN symbol, which
562 indicates to the C program that the chown() routine is available.
564 d_chroot (d_chroot.U):
565 This variable conditionally defines the HAS_CHROOT symbol, which
566 indicates to the C program that the chroot() routine is available.
568 d_chsize (d_chsize.U):
569 This variable conditionally defines the CHSIZE symbol, which
570 indicates to the C program that the chsize() routine is available
571 to truncate files. You might need a -lx to get this routine.
574 This variable conditionally defines the HAS_CLASS symbol, which
575 indicates to the C program that the class() routine is available.
577 d_clearenv (d_clearenv.U):
578 This variable conditionally defines the HAS_CLEARENV symbol, which
579 indicates to the C program that the clearenv () routine is available.
581 d_closedir (d_closedir.U):
582 This variable conditionally defines HAS_CLOSEDIR if closedir() is
585 d_cmsghdr_s (d_cmsghdr_s.U):
586 This variable conditionally defines the HAS_STRUCT_CMSGHDR symbol,
587 which indicates that the struct cmsghdr is supported.
590 This variable conditionally defines the HASCONST symbol, which
591 indicates to the C program that this C compiler knows about the
594 d_copysign (d_copysign.U):
595 This variable conditionally defines the HAS_COPYSIGN symbol, which
596 indicates to the C program that the copysign() routine is available.
598 d_copysignl (d_copysignl.U):
599 This variable conditionally defines the HAS_COPYSIGNL symbol, which
600 indicates to the C program that the copysignl() routine is available.
601 If aintl is also present we can emulate modfl.
603 d_cplusplus (d_cplusplus.U):
604 This variable conditionally defines the USE_CPLUSPLUS symbol, which
605 indicates that a C++ compiler was used to compiled Perl and will be
606 used to compile extensions.
609 This variable conditionally defines the CRYPT symbol, which
610 indicates to the C program that the crypt() routine is available
611 to encrypt passwords and the like.
613 d_crypt_r (d_crypt_r.U):
614 This variable conditionally defines the HAS_CRYPT_R symbol,
615 which indicates to the C program that the crypt_r()
616 routine is available.
619 This variable conditionally defines the CSH symbol, which
620 indicates to the C program that the C-shell exists.
622 d_ctermid (d_ctermid.U):
623 This variable conditionally defines CTERMID if ctermid() is
624 available to generate filename for terminal.
626 d_ctermid_r (d_ctermid_r.U):
627 This variable conditionally defines the HAS_CTERMID_R symbol,
628 which indicates to the C program that the ctermid_r()
629 routine is available.
631 d_ctime64 (d_timefuncs64.U):
632 This variable conditionally defines the HAS_CTIME64 symbol, which
633 indicates to the C program that the ctime64 () routine is available.
635 d_ctime_r (d_ctime_r.U):
636 This variable conditionally defines the HAS_CTIME_R symbol,
637 which indicates to the C program that the ctime_r()
638 routine is available.
640 d_cuserid (d_cuserid.U):
641 This variable conditionally defines the HAS_CUSERID symbol, which
642 indicates to the C program that the cuserid() routine is available
643 to get character login names.
645 d_dbl_dig (d_dbl_dig.U):
646 This variable conditionally defines d_dbl_dig if this system's
647 header files provide DBL_DIG, which is the number of significant
648 digits in a double precision number.
650 d_dbminitproto (d_dbminitproto.U):
651 This variable conditionally defines the HAS_DBMINIT_PROTO symbol,
652 which indicates to the C program that the system provides
653 a prototype for the dbminit() function. Otherwise, it is
654 up to the program to supply one.
656 d_difftime (d_difftime.U):
657 This variable conditionally defines the HAS_DIFFTIME symbol, which
658 indicates to the C program that the difftime() routine is available.
660 d_difftime64 (d_timefuncs64.U):
661 This variable conditionally defines the HAS_DIFFTIME64 symbol, which
662 indicates to the C program that the difftime64 () routine is available.
664 d_dir_dd_fd (d_dir_dd_fd.U):
665 This variable conditionally defines the HAS_DIR_DD_FD symbol, which
666 indicates that the DIR directory stream type contains a member
667 variable called dd_fd.
670 This variable conditionally defines the HAS_DIRFD constant,
671 which indicates to the C program that dirfd() is available
672 to return the file descriptor of a directory stream.
674 d_dirnamlen (i_dirent.U):
675 This variable conditionally defines DIRNAMLEN, which indicates
676 to the C program that the length of directory entry names is
677 provided by a d_namelen field.
679 d_dladdr (d_dladdr.U):
680 This variable conditionally defines the HAS_DLADDR symbol, which
681 indicates to the C program that the dladdr() routine is available
682 to get a stack trace.
684 d_dlerror (d_dlerror.U):
685 This variable conditionally defines the HAS_DLERROR symbol, which
686 indicates to the C program that the dlerror() routine is available.
688 d_dlopen (d_dlopen.U):
689 This variable conditionally defines the HAS_DLOPEN symbol, which
690 indicates to the C program that the dlopen() routine is available.
692 d_dlsymun (d_dlsymun.U):
693 This variable conditionally defines DLSYM_NEEDS_UNDERSCORE, which
694 indicates that we need to prepend an underscore to the symbol
695 name before calling dlsym().
697 d_dosuid (d_dosuid.U):
698 This variable conditionally defines the symbol DOSUID, which
699 tells the C program that it should insert setuid emulation code
700 on hosts which have setuid #! scripts disabled.
702 d_drand48_r (d_drand48_r.U):
703 This variable conditionally defines the HAS_DRAND48_R symbol,
704 which indicates to the C program that the drand48_r()
705 routine is available.
707 d_drand48proto (d_drand48proto.U):
708 This variable conditionally defines the HAS_DRAND48_PROTO symbol,
709 which indicates to the C program that the system provides
710 a prototype for the drand48() function. Otherwise, it is
711 up to the program to supply one.
714 This variable conditionally defines HAS_DUP2 if dup2() is
715 available to duplicate file descriptors.
717 d_duplocale (d_newlocale.U):
718 This variable conditionally defines the HAS_DUPLOCALE symbol, which
719 indicates to the C program that the duplocale() routine is available
720 to duplicate a locale object.
722 d_eaccess (d_eaccess.U):
723 This variable conditionally defines the HAS_EACCESS symbol, which
724 indicates to the C program that the eaccess() routine is available.
726 d_endgrent (d_endgrent.U):
727 This variable conditionally defines the HAS_ENDGRENT symbol, which
728 indicates to the C program that the endgrent() routine is available
729 for sequential access of the group database.
731 d_endgrent_r (d_endgrent_r.U):
732 This variable conditionally defines the HAS_ENDGRENT_R symbol,
733 which indicates to the C program that the endgrent_r()
734 routine is available.
736 d_endhent (d_endhent.U):
737 This variable conditionally defines HAS_ENDHOSTENT if endhostent() is
738 available to close whatever was being used for host queries.
740 d_endhostent_r (d_endhostent_r.U):
741 This variable conditionally defines the HAS_ENDHOSTENT_R symbol,
742 which indicates to the C program that the endhostent_r()
743 routine is available.
745 d_endnent (d_endnent.U):
746 This variable conditionally defines HAS_ENDNETENT if endnetent() is
747 available to close whatever was being used for network queries.
749 d_endnetent_r (d_endnetent_r.U):
750 This variable conditionally defines the HAS_ENDNETENT_R symbol,
751 which indicates to the C program that the endnetent_r()
752 routine is available.
754 d_endpent (d_endpent.U):
755 This variable conditionally defines HAS_ENDPROTOENT if endprotoent() is
756 available to close whatever was being used for protocol queries.
758 d_endprotoent_r (d_endprotoent_r.U):
759 This variable conditionally defines the HAS_ENDPROTOENT_R symbol,
760 which indicates to the C program that the endprotoent_r()
761 routine is available.
763 d_endpwent (d_endpwent.U):
764 This variable conditionally defines the HAS_ENDPWENT symbol, which
765 indicates to the C program that the endpwent() routine is available
766 for sequential access of the passwd database.
768 d_endpwent_r (d_endpwent_r.U):
769 This variable conditionally defines the HAS_ENDPWENT_R symbol,
770 which indicates to the C program that the endpwent_r()
771 routine is available.
773 d_endsent (d_endsent.U):
774 This variable conditionally defines HAS_ENDSERVENT if endservent() is
775 available to close whatever was being used for service queries.
777 d_endservent_r (d_endservent_r.U):
778 This variable conditionally defines the HAS_ENDSERVENT_R symbol,
779 which indicates to the C program that the endservent_r()
780 routine is available.
782 d_eofnblk (nblock_io.U):
783 This variable conditionally defines EOF_NONBLOCK if EOF can be seen
784 when reading from a non-blocking I/O source.
787 This variable conditionally defines the HAS_ERF symbol, which
788 indicates to the C program that the erf() routine is available.
791 This variable conditionally defines the HAS_ERFC symbol, which
792 indicates to the C program that the erfc() routine is available.
795 This variable conditionally defines the symbols EUNICE and VAX, which
796 alerts the C program that it must deal with idiosyncrasies of VMS.
799 This variable conditionally defines the HAS_EXP2 symbol, which
800 indicates to the C program that the exp2() routine is available.
803 This variable conditionally defines the HAS_EXPM1 symbol, which
804 indicates to the C program that the expm1() routine is available.
806 d_faststdio (d_faststdio.U):
807 This variable conditionally defines the HAS_FAST_STDIO symbol,
808 which indicates to the C program that the "fast stdio" is available
809 to manipulate the stdio buffers directly.
811 d_fchdir (d_fchdir.U):
812 This variable conditionally defines the HAS_FCHDIR symbol, which
813 indicates to the C program that the fchdir() routine is available.
815 d_fchmod (d_fchmod.U):
816 This variable conditionally defines the HAS_FCHMOD symbol, which
817 indicates to the C program that the fchmod() routine is available
818 to change mode of opened files.
820 d_fchown (d_fchown.U):
821 This variable conditionally defines the HAS_FCHOWN symbol, which
822 indicates to the C program that the fchown() routine is available
823 to change ownership of opened files.
826 This variable conditionally defines the HAS_FCNTL symbol, and indicates
827 whether the fcntl() function exists
829 d_fcntl_can_lock (d_fcntl_can_lock.U):
830 This variable conditionally defines the FCNTL_CAN_LOCK symbol
831 and indicates whether file locking with fcntl() works.
833 d_fd_macros (d_fd_set.U):
834 This variable contains the eventual value of the HAS_FD_MACROS symbol,
835 which indicates if your C compiler knows about the macros which
836 manipulate an fd_set.
838 d_fd_set (d_fd_set.U):
839 This variable contains the eventual value of the HAS_FD_SET symbol,
840 which indicates if your C compiler knows about the fd_set typedef.
842 d_fdclose (d_fdclose.U):
843 This variable conditionally defines the HAS_FDCLOSE symbol, which
844 indicates to the C program that the fdclose() routine is available.
847 This variable conditionally defines the HAS_FDIM symbol, which
848 indicates to the C program that the fdim() routine is available.
850 d_fds_bits (d_fd_set.U):
851 This variable contains the eventual value of the HAS_FDS_BITS symbol,
852 which indicates if your fd_set typedef contains the fds_bits member.
853 If you have an fd_set typedef, but the dweebs who installed it did
854 a half-fast job and neglected to provide the macros to manipulate
855 an fd_set, HAS_FDS_BITS will let us know how to fix the gaffe.
857 d_fegetround (d_fegetround.U):
858 This variable conditionally defines HAS_FEGETROUND if fegetround() is
859 available to get the floating point rounding mode.
861 d_fgetpos (d_fgetpos.U):
862 This variable conditionally defines HAS_FGETPOS if fgetpos() is
863 available to get the file position indicator.
865 d_finite (d_finite.U):
866 This variable conditionally defines the HAS_FINITE symbol, which
867 indicates to the C program that the finite() routine is available.
869 d_finitel (d_finitel.U):
870 This variable conditionally defines the HAS_FINITEL symbol, which
871 indicates to the C program that the finitel() routine is available.
873 d_flexfnam (d_flexfnam.U):
874 This variable conditionally defines the FLEXFILENAMES symbol, which
875 indicates that the system supports filenames longer than 14 characters.
878 This variable conditionally defines HAS_FLOCK if flock() is
879 available to do file locking.
881 d_flockproto (d_flockproto.U):
882 This variable conditionally defines the HAS_FLOCK_PROTO symbol,
883 which indicates to the C program that the system provides
884 a prototype for the flock() function. Otherwise, it is
885 up to the program to supply one.
888 This variable conditionally defines the HAS_FMA symbol, which
889 indicates to the C program that the fma() routine is available.
892 This variable conditionally defines the HAS_FMAX symbol, which
893 indicates to the C program that the fmax() routine is available.
896 This variable conditionally defines the HAS_FMIN symbol, which
897 indicates to the C program that the fmin() routine is available.
900 This variable conditionally defines the HAS_FORK symbol, which
901 indicates to the C program that the fork() routine is available.
903 d_fp_class (d_fp_class.U):
904 This variable conditionally defines the HAS_FP_CLASS symbol, which
905 indicates to the C program that the fp_class() routine is available.
907 d_fp_classify (d_fpclassify.U):
908 This variable conditionally defines the HAS_FP_CLASSIFY symbol, which
909 indicates to the C program that the fp_classify() routine is available.
911 d_fp_classl (d_fp_classl.U):
912 This variable conditionally defines the HAS_FP_CLASSL symbol, which
913 indicates to the C program that the fp_classl() routine is available.
915 d_fpathconf (d_pathconf.U):
916 This variable conditionally defines the HAS_FPATHCONF symbol, which
917 indicates to the C program that the pathconf() routine is available
918 to determine file-system related limits and options associated
919 with a given open file descriptor.
921 d_fpclass (d_fpclass.U):
922 This variable conditionally defines the HAS_FPCLASS symbol, which
923 indicates to the C program that the fpclass() routine is available.
925 d_fpclassify (d_fpclassify.U):
926 This variable conditionally defines the HAS_FPCLASSIFY symbol, which
927 indicates to the C program that the fpclassify() routine is available.
929 d_fpclassl (d_fpclassl.U):
930 This variable conditionally defines the HAS_FPCLASSL symbol, which
931 indicates to the C program that the fpclassl() routine is available.
933 d_fpgetround (d_fpgetround.U):
934 This variable conditionally defines HAS_FPGETROUND if fpgetround()
935 is available to get the floating point rounding mode.
937 d_fpos64_t (d_fpos64_t.U):
938 This symbol will be defined if the C compiler supports fpos64_t.
940 d_freelocale (d_newlocale.U):
941 This variable conditionally defines the HAS_FREELOCALE symbol, which
942 indicates to the C program that the freelocale() routine is available
943 to deallocates the resources associated with a locale object.
945 d_frexpl (d_frexpl.U):
946 This variable conditionally defines the HAS_FREXPL symbol, which
947 indicates to the C program that the frexpl() routine is available.
949 d_fs_data_s (d_fs_data_s.U):
950 This variable conditionally defines the HAS_STRUCT_FS_DATA symbol,
951 which indicates that the struct fs_data is supported.
953 d_fseeko (d_fseeko.U):
954 This variable conditionally defines the HAS_FSEEKO symbol, which
955 indicates to the C program that the fseeko() routine is available.
957 d_fsetpos (d_fsetpos.U):
958 This variable conditionally defines HAS_FSETPOS if fsetpos() is
959 available to set the file position indicator.
961 d_fstatfs (d_fstatfs.U):
962 This variable conditionally defines the HAS_FSTATFS symbol, which
963 indicates to the C program that the fstatfs() routine is available.
965 d_fstatvfs (d_statvfs.U):
966 This variable conditionally defines the HAS_FSTATVFS symbol, which
967 indicates to the C program that the fstatvfs() routine is available.
970 This variable conditionally defines the HAS_FSYNC symbol, which
971 indicates to the C program that the fsync() routine is available.
973 d_ftello (d_ftello.U):
974 This variable conditionally defines the HAS_FTELLO symbol, which
975 indicates to the C program that the ftello() routine is available.
978 This variable conditionally defines the HAS_FTIME symbol, which indicates
979 that the ftime() routine exists. The ftime() routine is basically
980 a sub-second accuracy clock.
982 d_futimes (d_futimes.U):
983 This variable conditionally defines the HAS_FUTIMES symbol, which
984 indicates to the C program that the futimes() routine is available.
986 d_gai_strerror (d_gai_strerror.U):
987 This variable conditionally defines the HAS_GAI_STRERROR symbol
988 if the gai_strerror() routine is available and can be used to
989 translate error codes returned by getaddrinfo() into human
992 d_Gconvert (d_gconvert.U):
993 This variable holds what Gconvert is defined as to convert
994 floating point numbers into strings. By default, Configure
995 sets this macro to use the first of gconvert, gcvt, or sprintf
996 that pass sprintf-%g-like behavior tests. If perl is using
997 long doubles, the macro uses the first of the following
998 functions that pass Configure's tests: qgcvt, sprintf (if
999 Configure knows how to make sprintf format long doubles--see
1000 sPRIgldbl), gconvert, gcvt, and sprintf (casting to double).
1001 The gconvert_preference and gconvert_ld_preference variables
1002 can be used to alter Configure's preferences, for doubles and
1003 long doubles, respectively. If present, they contain a
1004 space-separated list of one or more of the above function
1005 names in the order they should be tried.
1007 d_Gconvert may be set to override Configure with a platform-
1008 specific function. If this function expects a double, a
1009 different value may need to be set by the uselongdouble.cbu
1010 call-back unit so that long doubles can be formatted without
1013 d_gdbm_ndbm_h_uses_prototypes (i_ndbm.U):
1014 This variable conditionally defines the NDBM_H_USES_PROTOTYPES symbol,
1015 which indicates that the gdbm-ndbm.h include file uses real ANSI C
1016 prototypes instead of K&R style function declarations. K&R style
1017 declarations are unsupported in C++, so the include file requires
1018 special handling when using a C++ compiler and this variable is
1019 undefined. Consult the different d_*ndbm_h_uses_prototypes variables
1020 to get the same information for alternative ndbm.h include files.
1022 d_gdbmndbm_h_uses_prototypes (i_ndbm.U):
1023 This variable conditionally defines the NDBM_H_USES_PROTOTYPES symbol,
1024 which indicates that the gdbm/ndbm.h include file uses real ANSI C
1025 prototypes instead of K&R style function declarations. K&R style
1026 declarations are unsupported in C++, so the include file requires
1027 special handling when using a C++ compiler and this variable is
1028 undefined. Consult the different d_*ndbm_h_uses_prototypes variables
1029 to get the same information for alternative ndbm.h include files.
1031 d_getaddrinfo (d_getaddrinfo.U):
1032 This variable conditionally defines the HAS_GETADDRINFO symbol,
1033 which indicates to the C program that the getaddrinfo() function
1036 d_getcwd (d_getcwd.U):
1037 This variable conditionally defines the HAS_GETCWD symbol, which
1038 indicates to the C program that the getcwd() routine is available
1039 to get the current working directory.
1041 d_getespwnam (d_getespwnam.U):
1042 This variable conditionally defines HAS_GETESPWNAM if getespwnam() is
1043 available to retrieve enhanced (shadow) password entries by name.
1045 d_getfsstat (d_getfsstat.U):
1046 This variable conditionally defines the HAS_GETFSSTAT symbol, which
1047 indicates to the C program that the getfsstat() routine is available.
1049 d_getgrent (d_getgrent.U):
1050 This variable conditionally defines the HAS_GETGRENT symbol, which
1051 indicates to the C program that the getgrent() routine is available
1052 for sequential access of the group database.
1054 d_getgrent_r (d_getgrent_r.U):
1055 This variable conditionally defines the HAS_GETGRENT_R symbol,
1056 which indicates to the C program that the getgrent_r()
1057 routine is available.
1059 d_getgrgid_r (d_getgrgid_r.U):
1060 This variable conditionally defines the HAS_GETGRGID_R symbol,
1061 which indicates to the C program that the getgrgid_r()
1062 routine is available.
1064 d_getgrnam_r (d_getgrnam_r.U):
1065 This variable conditionally defines the HAS_GETGRNAM_R symbol,
1066 which indicates to the C program that the getgrnam_r()
1067 routine is available.
1069 d_getgrps (d_getgrps.U):
1070 This variable conditionally defines the HAS_GETGROUPS symbol, which
1071 indicates to the C program that the getgroups() routine is available
1072 to get the list of process groups.
1074 d_gethbyaddr (d_gethbyad.U):
1075 This variable conditionally defines the HAS_GETHOSTBYADDR symbol, which
1076 indicates to the C program that the gethostbyaddr() routine is available
1077 to look up hosts by their IP addresses.
1079 d_gethbyname (d_gethbynm.U):
1080 This variable conditionally defines the HAS_GETHOSTBYNAME symbol, which
1081 indicates to the C program that the gethostbyname() routine is available
1082 to look up host names in some data base or other.
1084 d_gethent (d_gethent.U):
1085 This variable conditionally defines HAS_GETHOSTENT if gethostent() is
1086 available to look up host names in some data base or another.
1088 d_gethname (d_gethname.U):
1089 This variable conditionally defines the HAS_GETHOSTNAME symbol, which
1090 indicates to the C program that the gethostname() routine may be
1091 used to derive the host name.
1093 d_gethostbyaddr_r (d_gethostbyaddr_r.U):
1094 This variable conditionally defines the HAS_GETHOSTBYADDR_R symbol,
1095 which indicates to the C program that the gethostbyaddr_r()
1096 routine is available.
1098 d_gethostbyname_r (d_gethostbyname_r.U):
1099 This variable conditionally defines the HAS_GETHOSTBYNAME_R symbol,
1100 which indicates to the C program that the gethostbyname_r()
1101 routine is available.
1103 d_gethostent_r (d_gethostent_r.U):
1104 This variable conditionally defines the HAS_GETHOSTENT_R symbol,
1105 which indicates to the C program that the gethostent_r()
1106 routine is available.
1108 d_gethostprotos (d_gethostprotos.U):
1109 This variable conditionally defines the HAS_GETHOST_PROTOS symbol,
1110 which indicates to the C program that <netdb.h> supplies
1111 prototypes for the various gethost*() functions.
1112 See also netdbtype.U for probing for various netdb types.
1114 d_getitimer (d_getitimer.U):
1115 This variable conditionally defines the HAS_GETITIMER symbol, which
1116 indicates to the C program that the getitimer() routine is available.
1118 d_getlogin (d_getlogin.U):
1119 This variable conditionally defines the HAS_GETLOGIN symbol, which
1120 indicates to the C program that the getlogin() routine is available
1121 to get the login name.
1123 d_getlogin_r (d_getlogin_r.U):
1124 This variable conditionally defines the HAS_GETLOGIN_R symbol,
1125 which indicates to the C program that the getlogin_r()
1126 routine is available.
1128 d_getmnt (d_getmnt.U):
1129 This variable conditionally defines the HAS_GETMNT symbol, which
1130 indicates to the C program that the getmnt() routine is available
1131 to retrieve one or more mount info blocks by filename.
1133 d_getmntent (d_getmntent.U):
1134 This variable conditionally defines the HAS_GETMNTENT symbol, which
1135 indicates to the C program that the getmntent() routine is available
1136 to iterate through mounted files to get their mount info.
1138 d_getnameinfo (d_getnameinfo.U):
1139 This variable conditionally defines the HAS_GETNAMEINFO symbol,
1140 which indicates to the C program that the getnameinfo() function
1143 d_getnbyaddr (d_getnbyad.U):
1144 This variable conditionally defines the HAS_GETNETBYADDR symbol, which
1145 indicates to the C program that the getnetbyaddr() routine is available
1146 to look up networks by their IP addresses.
1148 d_getnbyname (d_getnbynm.U):
1149 This variable conditionally defines the HAS_GETNETBYNAME symbol, which
1150 indicates to the C program that the getnetbyname() routine is available
1151 to look up networks by their names.
1153 d_getnent (d_getnent.U):
1154 This variable conditionally defines HAS_GETNETENT if getnetent() is
1155 available to look up network names in some data base or another.
1157 d_getnetbyaddr_r (d_getnetbyaddr_r.U):
1158 This variable conditionally defines the HAS_GETNETBYADDR_R symbol,
1159 which indicates to the C program that the getnetbyaddr_r()
1160 routine is available.
1162 d_getnetbyname_r (d_getnetbyname_r.U):
1163 This variable conditionally defines the HAS_GETNETBYNAME_R symbol,
1164 which indicates to the C program that the getnetbyname_r()
1165 routine is available.
1167 d_getnetent_r (d_getnetent_r.U):
1168 This variable conditionally defines the HAS_GETNETENT_R symbol,
1169 which indicates to the C program that the getnetent_r()
1170 routine is available.
1172 d_getnetprotos (d_getnetprotos.U):
1173 This variable conditionally defines the HAS_GETNET_PROTOS symbol,
1174 which indicates to the C program that <netdb.h> supplies
1175 prototypes for the various getnet*() functions.
1176 See also netdbtype.U for probing for various netdb types.
1178 d_getpagsz (d_getpagsz.U):
1179 This variable conditionally defines HAS_GETPAGESIZE if getpagesize()
1180 is available to get the system page size.
1182 d_getpbyname (d_getprotby.U):
1183 This variable conditionally defines the HAS_GETPROTOBYNAME
1184 symbol, which indicates to the C program that the
1185 getprotobyname() routine is available to look up protocols
1188 d_getpbynumber (d_getprotby.U):
1189 This variable conditionally defines the HAS_GETPROTOBYNUMBER
1190 symbol, which indicates to the C program that the
1191 getprotobynumber() routine is available to look up protocols
1194 d_getpent (d_getpent.U):
1195 This variable conditionally defines HAS_GETPROTOENT if getprotoent() is
1196 available to look up protocols in some data base or another.
1198 d_getpgid (d_getpgid.U):
1199 This variable conditionally defines the HAS_GETPGID symbol, which
1200 indicates to the C program that the getpgid(pid) function
1201 is available to get the process group id.
1203 d_getpgrp (d_getpgrp.U):
1204 This variable conditionally defines HAS_GETPGRP if getpgrp() is
1205 available to get the current process group.
1207 d_getpgrp2 (d_getpgrp2.U):
1208 This variable conditionally defines the HAS_GETPGRP2 symbol, which
1209 indicates to the C program that the getpgrp2() (as in DG/UX) routine
1210 is available to get the current process group.
1212 d_getppid (d_getppid.U):
1213 This variable conditionally defines the HAS_GETPPID symbol, which
1214 indicates to the C program that the getppid() routine is available
1215 to get the parent process ID.
1217 d_getprior (d_getprior.U):
1218 This variable conditionally defines HAS_GETPRIORITY if getpriority()
1219 is available to get a process's priority.
1221 d_getprotobyname_r (d_getprotobyname_r.U):
1222 This variable conditionally defines the HAS_GETPROTOBYNAME_R symbol,
1223 which indicates to the C program that the getprotobyname_r()
1224 routine is available.
1226 d_getprotobynumber_r (d_getprotobynumber_r.U):
1227 This variable conditionally defines the HAS_GETPROTOBYNUMBER_R symbol,
1228 which indicates to the C program that the getprotobynumber_r()
1229 routine is available.
1231 d_getprotoent_r (d_getprotoent_r.U):
1232 This variable conditionally defines the HAS_GETPROTOENT_R symbol,
1233 which indicates to the C program that the getprotoent_r()
1234 routine is available.
1236 d_getprotoprotos (d_getprotoprotos.U):
1237 This variable conditionally defines the HAS_GETPROTO_PROTOS symbol,
1238 which indicates to the C program that <netdb.h> supplies
1239 prototypes for the various getproto*() functions.
1240 See also netdbtype.U for probing for various netdb types.
1242 d_getprpwnam (d_getprpwnam.U):
1243 This variable conditionally defines HAS_GETPRPWNAM if getprpwnam() is
1244 available to retrieve protected (shadow) password entries by name.
1246 d_getpwent (d_getpwent.U):
1247 This variable conditionally defines the HAS_GETPWENT symbol, which
1248 indicates to the C program that the getpwent() routine is available
1249 for sequential access of the passwd database.
1251 d_getpwent_r (d_getpwent_r.U):
1252 This variable conditionally defines the HAS_GETPWENT_R symbol,
1253 which indicates to the C program that the getpwent_r()
1254 routine is available.
1256 d_getpwnam_r (d_getpwnam_r.U):
1257 This variable conditionally defines the HAS_GETPWNAM_R symbol,
1258 which indicates to the C program that the getpwnam_r()
1259 routine is available.
1261 d_getpwuid_r (d_getpwuid_r.U):
1262 This variable conditionally defines the HAS_GETPWUID_R symbol,
1263 which indicates to the C program that the getpwuid_r()
1264 routine is available.
1266 d_getsbyname (d_getsrvby.U):
1267 This variable conditionally defines the HAS_GETSERVBYNAME
1268 symbol, which indicates to the C program that the
1269 getservbyname() routine is available to look up services
1272 d_getsbyport (d_getsrvby.U):
1273 This variable conditionally defines the HAS_GETSERVBYPORT
1274 symbol, which indicates to the C program that the
1275 getservbyport() routine is available to look up services
1278 d_getsent (d_getsent.U):
1279 This variable conditionally defines HAS_GETSERVENT if getservent() is
1280 available to look up network services in some data base or another.
1282 d_getservbyname_r (d_getservbyname_r.U):
1283 This variable conditionally defines the HAS_GETSERVBYNAME_R symbol,
1284 which indicates to the C program that the getservbyname_r()
1285 routine is available.
1287 d_getservbyport_r (d_getservbyport_r.U):
1288 This variable conditionally defines the HAS_GETSERVBYPORT_R symbol,
1289 which indicates to the C program that the getservbyport_r()
1290 routine is available.
1292 d_getservent_r (d_getservent_r.U):
1293 This variable conditionally defines the HAS_GETSERVENT_R symbol,
1294 which indicates to the C program that the getservent_r()
1295 routine is available.
1297 d_getservprotos (d_getservprotos.U):
1298 This variable conditionally defines the HAS_GETSERV_PROTOS symbol,
1299 which indicates to the C program that <netdb.h> supplies
1300 prototypes for the various getserv*() functions.
1301 See also netdbtype.U for probing for various netdb types.
1303 d_getspnam (d_getspnam.U):
1304 This variable conditionally defines HAS_GETSPNAM if getspnam() is
1305 available to retrieve SysV shadow password entries by name.
1307 d_getspnam_r (d_getspnam_r.U):
1308 This variable conditionally defines the HAS_GETSPNAM_R symbol,
1309 which indicates to the C program that the getspnam_r()
1310 routine is available.
1312 d_gettimeod (d_ftime.U):
1313 This variable conditionally defines the HAS_GETTIMEOFDAY symbol, which
1314 indicates that the gettimeofday() system call exists (to obtain a
1315 sub-second accuracy clock). You should probably include <sys/resource.h>.
1317 d_gmtime64 (d_timefuncs64.U):
1318 This variable conditionally defines the HAS_GMTIME64 symbol, which
1319 indicates to the C program that the gmtime64 () routine is available.
1321 d_gmtime_r (d_gmtime_r.U):
1322 This variable conditionally defines the HAS_GMTIME_R symbol,
1323 which indicates to the C program that the gmtime_r()
1324 routine is available.
1326 d_gnulibc (d_gnulibc.U):
1327 Defined if we're dealing with the GNU C Library.
1329 d_grpasswd (i_grp.U):
1330 This variable conditionally defines GRPASSWD, which indicates
1331 that struct group in <grp.h> contains gr_passwd.
1333 d_hasmntopt (d_hasmntopt.U):
1334 This variable conditionally defines the HAS_HASMNTOPT symbol, which
1335 indicates to the C program that the hasmntopt() routine is available
1336 to query the mount options of file systems.
1338 d_htonl (d_htonl.U):
1339 This variable conditionally defines HAS_HTONL if htonl() and its
1340 friends are available to do network order byte swapping.
1342 d_hypot (d_hypot.U):
1343 This variable conditionally defines HAS_HYPOT if hypot is available
1344 for numerically stable hypotenuse function.
1346 d_ilogb (d_ilogb.U):
1347 This variable conditionally defines the HAS_ILOGB symbol, which
1348 indicates to the C program that the ilogb() routine is available
1349 for extracting the exponent of double x as a signed integer.
1351 d_ilogbl (d_ilogbl.U):
1352 This variable conditionally defines the HAS_ILOGBL symbol, which
1353 indicates to the C program that the ilogbl() routine is available
1354 for extracting the exponent of long double x as a signed integer.
1355 If scalbnl is also present we can emulate frexpl.
1357 d_inc_version_list (inc_version_list.U):
1358 This variable conditionally defines PERL_INC_VERSION_LIST.
1359 It is set to undef when PERL_INC_VERSION_LIST is empty.
1361 d_index (d_strchr.U):
1362 This variable conditionally defines HAS_INDEX if index() and
1363 rindex() are available for string searching.
1365 d_inetaton (d_inetaton.U):
1366 This variable conditionally defines the HAS_INET_ATON symbol, which
1367 indicates to the C program that the inet_aton() function is available
1368 to parse IP address "dotted-quad" strings.
1370 d_inetntop (d_inetntop.U):
1371 This variable conditionally defines the HAS_INETNTOP symbol,
1372 which indicates to the C program that the inet_ntop() function
1375 d_inetpton (d_inetpton.U):
1376 This variable conditionally defines the HAS_INETPTON symbol,
1377 which indicates to the C program that the inet_pton() function
1380 d_int64_t (d_int64_t.U):
1381 This symbol will be defined if the C compiler supports int64_t.
1383 d_ip_mreq (d_socket.U):
1384 This variable conditionally defines the HAS_IP_MREQ symbol, which
1385 indicates the availability of a struct ip_mreq.
1387 d_ip_mreq_source (d_socket.U):
1388 This variable conditionally defines the HAS_IP_MREQ_SOURCE symbol,
1389 which indicates the availability of a struct ip_mreq_source.
1391 d_ipv6_mreq (d_socket.U):
1392 This variable conditionally defines the HAS_IPV6_MREQ symbol, which
1393 indicates the availability of a struct ipv6_mreq.
1395 d_ipv6_mreq_source (d_socket.U):
1396 This variable conditionally defines the HAS_IPV6_MREQ_SOURCE symbol,
1397 which indicates the availability of a struct ipv6_mreq_source.
1399 d_isascii (d_isascii.U):
1400 This variable conditionally defines the HAS_ISASCII constant,
1401 which indicates to the C program that isascii() is available.
1403 d_isblank (d_isblank.U):
1404 This variable conditionally defines the HAS_ISBLANK constant,
1405 which indicates to the C program that isblank() is available.
1407 d_isfinite (d_isfinite.U):
1408 This variable conditionally defines the HAS_ISFINITE symbol, which
1409 indicates to the C program that the isfinite() routine is available.
1411 d_isfinitel (d_isfinitel.U):
1412 This variable conditionally defines the HAS_ISFINITEL symbol, which
1413 indicates to the C program that the isfinitel() routine is available.
1415 d_isinf (d_isinf.U):
1416 This variable conditionally defines the HAS_ISINF symbol, which
1417 indicates to the C program that the isinf() routine is available.
1419 d_isinfl (d_isinfl.U):
1420 This variable conditionally defines the HAS_ISINFL symbol, which
1421 indicates to the C program that the isinfl() routine is available.
1423 d_isless (d_isless.U):
1424 This variable conditionally defines the HAS_ISLESS symbol, which
1425 indicates to the C program that the isless() routine is available.
1427 d_isnan (d_isnan.U):
1428 This variable conditionally defines the HAS_ISNAN symbol, which
1429 indicates to the C program that the isnan() routine is available.
1431 d_isnanl (d_isnanl.U):
1432 This variable conditionally defines the HAS_ISNANL symbol, which
1433 indicates to the C program that the isnanl() routine is available.
1435 d_isnormal (d_isnormal.U):
1436 This variable conditionally defines the HAS_ISNORMAL symbol, which
1437 indicates to the C program that the isnormal() routine is available.
1440 This variable conditionally defines the HAS_J0 symbol, which
1441 indicates to the C program that the j0() routine is available.
1444 This variable conditionally defines the HAS_J0L symbol, which
1445 indicates to the C program that the j0l() routine is available.
1447 d_killpg (d_killpg.U):
1448 This variable conditionally defines the HAS_KILLPG symbol, which
1449 indicates to the C program that the killpg() routine is available
1450 to kill process groups.
1452 d_lc_monetary_2008 (d_lc_monetary_2008.U):
1453 This variable conditionally defines HAS_LC_MONETARY_2008 if libc
1454 has the international currency locale rules from POSIX
1457 d_lchown (d_lchown.U):
1458 This variable conditionally defines the HAS_LCHOWN symbol, which
1459 indicates to the C program that the lchown() routine is available
1460 to operate on a symbolic link (instead of following the link).
1462 d_ldbl_dig (d_ldbl_dig.U):
1463 This variable conditionally defines d_ldbl_dig if this system's
1464 header files provide LDBL_DIG, which is the number of significant
1465 digits in a long double precision number.
1467 d_ldexpl (d_longdbl.U):
1468 This variable conditionally defines the HAS_LDEXPL symbol, which
1469 indicates to the C program that the ldexpl() routine is available.
1471 d_lgamma (d_lgamma.U):
1472 This variable conditionally defines the HAS_LGAMMA symbol, which
1473 indicates to the C program that the lgamma() routine is available
1474 for the log gamma function. See also d_tgamma and d_lgamma_r.
1476 d_lgamma_r (d_lgamma_r.U):
1477 This variable conditionally defines the HAS_LGAMMA_R symbol, which
1478 indicates to the C program that the lgamma_r() routine is available
1479 for the log gamma function, without using the global signgam variable.
1481 d_libm_lib_version (d_libm_lib_version.U):
1482 This variable conditionally defines the LIBM_LIB_VERSION symbol,
1483 which indicates to the C program that math.h defines _LIB_VERSION
1484 being available in libm
1486 d_libname_unique (so.U):
1487 This variable is defined if the target system insists on unique
1488 basenames for shared library files. This is currently true on Android,
1489 false everywhere else we know of.
1490 Defaults to 'undef'.
1493 This variable conditionally defines HAS_LINK if link() is
1494 available to create hard links.
1496 d_llrint (d_llrint.U):
1497 This variable conditionally defines the HAS_LLRINT symbol, which
1498 indicates to the C program that the llrint() routine is available
1499 to return the long long value closest to a double (according
1500 to the current rounding mode).
1502 d_llrintl (d_llrintl.U):
1503 This variable conditionally defines the HAS_LLRINTL symbol, which
1504 indicates to the C program that the llrintl() routine is available
1505 to return the long long value closest to a long double (according
1506 to the current rounding mode).
1508 d_llround (d_llround.U):
1509 This variable conditionally defines the HAS_LLROUND symbol, which
1510 indicates to the C program that the llround() routine is available
1511 to return the long long value nearest to x.
1513 d_llroundl (d_llroundl.U):
1514 This variable conditionally defines the HAS_LLROUNDL symbol, which
1515 indicates to the C program that the llroundl() routine is available
1516 to return the long long value nearest to x away from zero.
1518 d_localtime64 (d_timefuncs64.U):
1519 This variable conditionally defines the HAS_LOCALTIME64 symbol, which
1520 indicates to the C program that the localtime64 () routine is available.
1522 d_localtime_r (d_localtime_r.U):
1523 This variable conditionally defines the HAS_LOCALTIME_R symbol,
1524 which indicates to the C program that the localtime_r()
1525 routine is available.
1527 d_localtime_r_needs_tzset (d_localtime_r.U):
1528 This variable conditionally defines the LOCALTIME_R_NEEDS_TZSET
1529 symbol, which makes us call tzset before localtime_r()
1531 d_locconv (d_locconv.U):
1532 This variable conditionally defines HAS_LOCALECONV if localeconv() is
1533 available for numeric and monetary formatting conventions.
1535 d_lockf (d_lockf.U):
1536 This variable conditionally defines HAS_LOCKF if lockf() is
1537 available to do file locking.
1539 d_log1p (d_log1p.U):
1540 This variable conditionally defines the HAS_LOG1P symbol, which
1541 indicates to the C program that the logp1() routine is available
1542 to compute log(1 + x) for values of x close to zero.
1545 This variable conditionally defines the HAS_LOG2 symbol, which
1546 indicates to the C program that the log2() routine is available
1547 to compute log base two.
1550 This variable conditionally defines the HAS_LOGB symbol, which
1551 indicates to the C program that the logb() routine is available
1552 to extract the exponent of x.
1554 d_longdbl (d_longdbl.U):
1555 This variable conditionally defines HAS_LONG_DOUBLE if
1556 the long double type is supported.
1558 d_longlong (d_longlong.U):
1559 This variable conditionally defines HAS_LONG_LONG if
1560 the long long type is supported.
1562 d_lrint (d_lrint.U):
1563 This variable conditionally defines the HAS_LRINT symbol, which
1564 indicates to the C program that the lrint() routine is available
1565 to return the integral value closest to a double (according
1566 to the current rounding mode).
1568 d_lrintl (d_lrintl.U):
1569 This variable conditionally defines the HAS_LRINTL symbol, which
1570 indicates to the C program that the lrintl() routine is available
1571 to return the integral value closest to a long double (according
1572 to the current rounding mode).
1574 d_lround (d_lround.U):
1575 This variable conditionally defines the HAS_LROUND symbol, which
1576 indicates to the C program that the lround() routine is available
1577 to return the integral value nearest to x.
1579 d_lroundl (d_lroundl.U):
1580 This variable conditionally defines the HAS_LROUNDL symbol, which
1581 indicates to the C program that the lroundl() routine is available
1582 to return the integral value nearest to x away from zero.
1584 d_lseekproto (d_lseekproto.U):
1585 This variable conditionally defines the HAS_LSEEK_PROTO symbol,
1586 which indicates to the C program that the system provides
1587 a prototype for the lseek() function. Otherwise, it is
1588 up to the program to supply one.
1590 d_lstat (d_lstat.U):
1591 This variable conditionally defines HAS_LSTAT if lstat() is
1592 available to do file stats on symbolic links.
1594 d_madvise (d_madvise.U):
1595 This variable conditionally defines HAS_MADVISE if madvise() is
1596 available to map a file into memory.
1598 d_malloc_good_size (d_malloc_size.U):
1599 This symbol, if defined, indicates that the malloc_good_size
1600 routine is available for use.
1602 d_malloc_size (d_malloc_size.U):
1603 This symbol, if defined, indicates that the malloc_size
1604 routine is available for use.
1606 d_mblen (d_mblen.U):
1607 This variable conditionally defines the HAS_MBLEN symbol, which
1608 indicates to the C program that the mblen() routine is available
1609 to find the number of bytes in a multibye character.
1611 d_mbstowcs (d_mbstowcs.U):
1612 This variable conditionally defines the HAS_MBSTOWCS symbol, which
1613 indicates to the C program that the mbstowcs() routine is available
1614 to convert a multibyte string into a wide character string.
1616 d_mbtowc (d_mbtowc.U):
1617 This variable conditionally defines the HAS_MBTOWC symbol, which
1618 indicates to the C program that the mbtowc() routine is available
1619 to convert multibyte to a wide character.
1621 d_memchr (d_memchr.U):
1622 This variable conditionally defines the HAS_MEMCHR symbol, which
1623 indicates to the C program that the memchr() routine is available
1624 to locate characters within a C string.
1626 d_memcmp (d_memcmp.U):
1627 This variable conditionally defines the HAS_MEMCMP symbol, which
1628 indicates to the C program that the memcmp() routine is available
1629 to compare blocks of memory.
1631 d_memcpy (d_memcpy.U):
1632 This variable conditionally defines the HAS_MEMCPY symbol, which
1633 indicates to the C program that the memcpy() routine is available
1634 to copy blocks of memory.
1636 d_memmem (d_memmem.U):
1637 This variable conditionally defines the HAS_MEMMEM symbol, which
1638 indicates to the C program that the memmem() routine is available
1639 to return a pointer to the start of the first occurance of a
1640 substring in a memory area (or NULL if not found).
1642 d_memmove (d_memmove.U):
1643 This variable conditionally defines the HAS_MEMMOVE symbol, which
1644 indicates to the C program that the memmove() routine is available
1645 to copy potentially overlapping blocks of memory.
1647 d_memset (d_memset.U):
1648 This variable conditionally defines the HAS_MEMSET symbol, which
1649 indicates to the C program that the memset() routine is available
1650 to set blocks of memory.
1652 d_mkdir (d_mkdir.U):
1653 This variable conditionally defines the HAS_MKDIR symbol, which
1654 indicates to the C program that the mkdir() routine is available
1655 to create directories..
1657 d_mkdtemp (d_mkdtemp.U):
1658 This variable conditionally defines the HAS_MKDTEMP symbol, which
1659 indicates to the C program that the mkdtemp() routine is available
1660 to exclusively create a uniquely named temporary directory.
1662 d_mkfifo (d_mkfifo.U):
1663 This variable conditionally defines the HAS_MKFIFO symbol, which
1664 indicates to the C program that the mkfifo() routine is available.
1666 d_mkstemp (d_mkstemp.U):
1667 This variable conditionally defines the HAS_MKSTEMP symbol, which
1668 indicates to the C program that the mkstemp() routine is available
1669 to exclusively create and open a uniquely named temporary file.
1671 d_mkstemps (d_mkstemps.U):
1672 This variable conditionally defines the HAS_MKSTEMPS symbol, which
1673 indicates to the C program that the mkstemps() routine is available
1674 to exclusively create and open a uniquely named (with a suffix)
1677 d_mktime (d_mktime.U):
1678 This variable conditionally defines the HAS_MKTIME symbol, which
1679 indicates to the C program that the mktime() routine is available.
1681 d_mktime64 (d_timefuncs64.U):
1682 This variable conditionally defines the HAS_MKTIME64 symbol, which
1683 indicates to the C program that the mktime64 () routine is available.
1686 This variable conditionally defines HAS_MMAP if mmap() is
1687 available to map a file into memory.
1689 d_modfl (d_modfl.U):
1690 This variable conditionally defines the HAS_MODFL symbol, which
1691 indicates to the C program that the modfl() routine is available.
1693 d_modflproto (d_modfl.U):
1694 This symbol, if defined, indicates that the system provides
1695 a prototype for the modfl() function. Otherwise, it is up
1696 to the program to supply one. C99 says it should be
1697 long double modfl(long double, long double *);
1699 d_mprotect (d_mprotect.U):
1700 This variable conditionally defines HAS_MPROTECT if mprotect() is
1701 available to modify the access protection of a memory mapped file.
1704 This variable conditionally defines the HAS_MSG symbol, which
1705 indicates that the entire msg*(2) library is present.
1707 d_msg_ctrunc (d_socket.U):
1708 This variable conditionally defines the HAS_MSG_CTRUNC symbol,
1709 which indicates that the MSG_CTRUNC is available. #ifdef is
1710 not enough because it may be an enum, glibc has been known to do this.
1712 d_msg_dontroute (d_socket.U):
1713 This variable conditionally defines the HAS_MSG_DONTROUTE symbol,
1714 which indicates that the MSG_DONTROUTE is available. #ifdef is
1715 not enough because it may be an enum, glibc has been known to do this.
1717 d_msg_oob (d_socket.U):
1718 This variable conditionally defines the HAS_MSG_OOB symbol,
1719 which indicates that the MSG_OOB is available. #ifdef is
1720 not enough because it may be an enum, glibc has been known to do this.
1722 d_msg_peek (d_socket.U):
1723 This variable conditionally defines the HAS_MSG_PEEK symbol,
1724 which indicates that the MSG_PEEK is available. #ifdef is
1725 not enough because it may be an enum, glibc has been known to do this.
1727 d_msg_proxy (d_socket.U):
1728 This variable conditionally defines the HAS_MSG_PROXY symbol,
1729 which indicates that the MSG_PROXY is available. #ifdef is
1730 not enough because it may be an enum, glibc has been known to do this.
1732 d_msgctl (d_msgctl.U):
1733 This variable conditionally defines the HAS_MSGCTL symbol, which
1734 indicates to the C program that the msgctl() routine is available.
1736 d_msgget (d_msgget.U):
1737 This variable conditionally defines the HAS_MSGGET symbol, which
1738 indicates to the C program that the msgget() routine is available.
1740 d_msghdr_s (d_msghdr_s.U):
1741 This variable conditionally defines the HAS_STRUCT_MSGHDR symbol,
1742 which indicates that the struct msghdr is supported.
1744 d_msgrcv (d_msgrcv.U):
1745 This variable conditionally defines the HAS_MSGRCV symbol, which
1746 indicates to the C program that the msgrcv() routine is available.
1748 d_msgsnd (d_msgsnd.U):
1749 This variable conditionally defines the HAS_MSGSND symbol, which
1750 indicates to the C program that the msgsnd() routine is available.
1752 d_msync (d_msync.U):
1753 This variable conditionally defines HAS_MSYNC if msync() is
1754 available to synchronize a mapped file.
1756 d_munmap (d_munmap.U):
1757 This variable conditionally defines HAS_MUNMAP if munmap() is
1758 available to unmap a region mapped by mmap().
1760 d_mymalloc (mallocsrc.U):
1761 This variable conditionally defines MYMALLOC in case other parts
1762 of the source want to take special action if MYMALLOC is used.
1763 This may include different sorts of profiling or error detection.
1766 This variable conditionally defines HAS_NAN if nan() is
1767 available to generate NaN.
1770 This variable conditionally defines the HAS_NDBM symbol, which
1771 indicates that both the ndbm.h include file and an appropriate ndbm
1772 library exist. Consult the different i_*ndbm variables
1773 to find out the actual include location. Sometimes, a system has the
1774 header file but not the library. This variable will only be set if
1775 the system has both.
1777 d_ndbm_h_uses_prototypes (i_ndbm.U):
1778 This variable conditionally defines the NDBM_H_USES_PROTOTYPES symbol,
1779 which indicates that the ndbm.h include file uses real ANSI C
1780 prototypes instead of K&R style function declarations. K&R style
1781 declarations are unsupported in C++, so the include file requires
1782 special handling when using a C++ compiler and this variable is
1783 undefined. Consult the different d_*ndbm_h_uses_prototypes variables
1784 to get the same information for alternative ndbm.h include files.
1786 d_nearbyint (d_nearbyint.U):
1787 This variable conditionally defines HAS_NEARBYINT if nearbyint()
1788 is available to return the integral value closest to (according to
1789 the current rounding mode) to x.
1791 d_newlocale (d_newlocale.U):
1792 This variable conditionally defines the HAS_NEWLOCALE symbol, which
1793 indicates to the C program that the newlocale() routine is available
1794 to return a new locale object or modify an existing locale object.
1796 d_nextafter (d_nextafter.U):
1797 This variable conditionally defines HAS_NEXTAFTER if nextafter()
1798 is available to return the next machine representable double from
1801 d_nexttoward (d_nexttoward.U):
1802 This variable conditionally defines HAS_NEXTTOWARD if nexttoward()
1803 is available to return the next machine representable long double from
1807 This variable conditionally defines the HAS_NICE symbol, which
1808 indicates to the C program that the nice() routine is available.
1810 d_nl_langinfo (d_nl_langinfo.U):
1811 This variable conditionally defines the HAS_NL_LANGINFO symbol, which
1812 indicates to the C program that the nl_langinfo() routine is available.
1814 d_nv_preserves_uv (perlxv.U):
1815 This variable indicates whether a variable of type nvtype
1816 can preserve all the bits a variable of type uvtype.
1818 d_nv_zero_is_allbits_zero (perlxv.U):
1819 This variable indicates whether a variable of type nvtype
1820 stores 0.0 in memory as all bits zero.
1822 d_off64_t (d_off64_t.U):
1823 This symbol will be defined if the C compiler supports off64_t.
1825 d_old_pthread_create_joinable (d_pthrattrj.U):
1826 This variable conditionally defines pthread_create_joinable.
1827 undef if pthread.h defines PTHREAD_CREATE_JOINABLE.
1829 d_oldpthreads (usethreads.U):
1830 This variable conditionally defines the OLD_PTHREADS_API symbol,
1831 and indicates that Perl should be built to use the old
1832 draft POSIX threads API. This is only potentially meaningful if
1835 d_oldsock (d_socket.U):
1836 This variable conditionally defines the OLDSOCKET symbol, which
1837 indicates that the BSD socket interface is based on 4.1c and not 4.2.
1839 d_open3 (d_open3.U):
1840 This variable conditionally defines the HAS_OPEN3 manifest constant,
1841 which indicates to the C program that the 3 argument version of
1842 the open(2) function is available.
1844 d_pathconf (d_pathconf.U):
1845 This variable conditionally defines the HAS_PATHCONF symbol, which
1846 indicates to the C program that the pathconf() routine is available
1847 to determine file-system related limits and options associated
1848 with a given filename.
1850 d_pause (d_pause.U):
1851 This variable conditionally defines the HAS_PAUSE symbol, which
1852 indicates to the C program that the pause() routine is available
1853 to suspend a process until a signal is received.
1855 d_perl_otherlibdirs (otherlibdirs.U):
1856 This variable conditionally defines PERL_OTHERLIBDIRS, which
1857 contains a colon-separated set of paths for the perl binary to
1858 include in @INC. See also otherlibdirs.
1860 d_phostname (d_gethname.U):
1861 This variable conditionally defines the HAS_PHOSTNAME symbol, which
1862 contains the shell command which, when fed to popen(), may be
1863 used to derive the host name.
1866 This variable conditionally defines the HAS_PIPE symbol, which
1867 indicates to the C program that the pipe() routine is available
1868 to create an inter-process channel.
1871 This variable conditionally defines the HAS_POLL symbol, which
1872 indicates to the C program that the poll() routine is available
1873 to poll active file descriptors.
1875 d_portable (d_portable.U):
1876 This variable conditionally defines the PORTABLE symbol, which
1877 indicates to the C program that it should not assume that it is
1878 running on the machine it was compiled on.
1880 d_prctl (d_prctl.U):
1881 This variable conditionally defines the HAS_PRCTL symbol, which
1882 indicates to the C program that the prctl() routine is available.
1883 Note that there are at least two prctl variants: Linux and Irix.
1884 While they are somewhat similar, they are incompatible.
1886 d_prctl_set_name (d_prctl.U):
1887 This variable conditionally defines the HAS_PRCTL_SET_NAME symbol,
1888 which indicates to the C program that the prctl() routine supports
1889 the PR_SET_NAME option.
1891 d_PRId64 (quadfio.U):
1892 This variable conditionally defines the PERL_PRId64 symbol, which
1893 indicates that stdio has a symbol to print 64-bit decimal numbers.
1895 d_PRIeldbl (longdblfio.U):
1896 This variable conditionally defines the PERL_PRIfldbl symbol, which
1897 indicates that stdio has a symbol to print long doubles.
1899 d_PRIEUldbl (longdblfio.U):
1900 This variable conditionally defines the PERL_PRIfldbl symbol, which
1901 indicates that stdio has a symbol to print long doubles.
1902 The 'U' in the name is to separate this from d_PRIeldbl so that even
1903 case-blind systems can see the difference.
1905 d_PRIfldbl (longdblfio.U):
1906 This variable conditionally defines the PERL_PRIfldbl symbol, which
1907 indicates that stdio has a symbol to print long doubles.
1909 d_PRIFUldbl (longdblfio.U):
1910 This variable conditionally defines the PERL_PRIfldbl symbol, which
1911 indicates that stdio has a symbol to print long doubles.
1912 The 'U' in the name is to separate this from d_PRIfldbl so that even
1913 case-blind systems can see the difference.
1915 d_PRIgldbl (longdblfio.U):
1916 This variable conditionally defines the PERL_PRIfldbl symbol, which
1917 indicates that stdio has a symbol to print long doubles.
1919 d_PRIGUldbl (longdblfio.U):
1920 This variable conditionally defines the PERL_PRIfldbl symbol, which
1921 indicates that stdio has a symbol to print long doubles.
1922 The 'U' in the name is to separate this from d_PRIgldbl so that even
1923 case-blind systems can see the difference.
1925 d_PRIi64 (quadfio.U):
1926 This variable conditionally defines the PERL_PRIi64 symbol, which
1927 indicates that stdio has a symbol to print 64-bit decimal numbers.
1929 d_printf_format_null (d_attribut.U):
1930 This variable conditionally defines PRINTF_FORMAT_NULL_OK, which
1931 indicates the C compiler allows printf-like formats to be null.
1933 d_PRIo64 (quadfio.U):
1934 This variable conditionally defines the PERL_PRIo64 symbol, which
1935 indicates that stdio has a symbol to print 64-bit octal numbers.
1937 d_PRIu64 (quadfio.U):
1938 This variable conditionally defines the PERL_PRIu64 symbol, which
1939 indicates that stdio has a symbol to print 64-bit unsigned decimal
1942 d_PRIx64 (quadfio.U):
1943 This variable conditionally defines the PERL_PRIx64 symbol, which
1944 indicates that stdio has a symbol to print 64-bit hexadecimal numbers.
1946 d_PRIXU64 (quadfio.U):
1947 This variable conditionally defines the PERL_PRIXU64 symbol, which
1948 indicates that stdio has a symbol to print 64-bit hExADECimAl numbers.
1949 The 'U' in the name is to separate this from d_PRIx64 so that even
1950 case-blind systems can see the difference.
1952 d_procselfexe (d_procselfexe.U):
1953 Defined if $procselfexe is symlink to the absolute
1954 pathname of the executing program.
1956 d_pseudofork (d_vfork.U):
1957 This variable conditionally defines the HAS_PSEUDOFORK symbol,
1958 which indicates that an emulation of the fork routine is available.
1960 d_pthread_atfork (d_pthread_atfork.U):
1961 This variable conditionally defines the HAS_PTHREAD_ATFORK symbol,
1962 which indicates to the C program that the pthread_atfork()
1963 routine is available.
1965 d_pthread_attr_setscope (d_pthread_attr_ss.U):
1966 This variable conditionally defines HAS_PTHREAD_ATTR_SETSCOPE if
1967 pthread_attr_setscope() is available to set the contention scope
1968 attribute of a thread attribute object.
1970 d_pthread_yield (d_pthread_y.U):
1971 This variable conditionally defines the HAS_PTHREAD_YIELD
1972 symbol if the pthread_yield routine is available to yield
1973 the execution of the current thread.
1975 d_ptrdiff_t (d_ptrdiff_t.U):
1976 This symbol will be defined if the C compiler supports ptrdiff_t.
1979 This variable conditionally defines PWAGE, which indicates
1980 that struct passwd contains pw_age.
1982 d_pwchange (i_pwd.U):
1983 This variable conditionally defines PWCHANGE, which indicates
1984 that struct passwd contains pw_change.
1986 d_pwclass (i_pwd.U):
1987 This variable conditionally defines PWCLASS, which indicates
1988 that struct passwd contains pw_class.
1990 d_pwcomment (i_pwd.U):
1991 This variable conditionally defines PWCOMMENT, which indicates
1992 that struct passwd contains pw_comment.
1994 d_pwexpire (i_pwd.U):
1995 This variable conditionally defines PWEXPIRE, which indicates
1996 that struct passwd contains pw_expire.
1998 d_pwgecos (i_pwd.U):
1999 This variable conditionally defines PWGECOS, which indicates
2000 that struct passwd contains pw_gecos.
2002 d_pwpasswd (i_pwd.U):
2003 This variable conditionally defines PWPASSWD, which indicates
2004 that struct passwd contains pw_passwd.
2006 d_pwquota (i_pwd.U):
2007 This variable conditionally defines PWQUOTA, which indicates
2008 that struct passwd contains pw_quota.
2010 d_qgcvt (d_qgcvt.U):
2011 This variable conditionally defines the HAS_QGCVT symbol, which
2012 indicates to the C program that the qgcvt() routine is available.
2014 d_quad (quadtype.U):
2015 This variable, if defined, tells that there's a 64-bit integer type,
2018 d_querylocale (d_newlocale.U):
2019 This variable conditionally defines the HAS_QUERYLOCALE symbol, which
2020 indicates to the C program that the querylocale() routine is available
2021 to return the name of the locale for a category mask.
2023 d_random_r (d_random_r.U):
2024 This variable conditionally defines the HAS_RANDOM_R symbol,
2025 which indicates to the C program that the random_r()
2026 routine is available.
2028 d_re_comp (d_regcmp.U):
2029 This variable conditionally defines the HAS_RECOMP symbol, which
2030 indicates to the C program that the re_comp() routine is available
2031 for regular patern matching (usally on BSD). If so, it is likely that
2034 d_readdir (d_readdir.U):
2035 This variable conditionally defines HAS_READDIR if readdir() is
2036 available to read directory entries.
2038 d_readdir64_r (d_readdir64_r.U):
2039 This variable conditionally defines the HAS_READDIR64_R symbol,
2040 which indicates to the C program that the readdir64_r()
2041 routine is available.
2043 d_readdir_r (d_readdir_r.U):
2044 This variable conditionally defines the HAS_READDIR_R symbol,
2045 which indicates to the C program that the readdir_r()
2046 routine is available.
2048 d_readlink (d_readlink.U):
2049 This variable conditionally defines the HAS_READLINK symbol, which
2050 indicates to the C program that the readlink() routine is available
2051 to read the value of a symbolic link.
2053 d_readv (d_readv.U):
2054 This variable conditionally defines the HAS_READV symbol, which
2055 indicates to the C program that the readv() routine is available.
2057 d_recvmsg (d_recvmsg.U):
2058 This variable conditionally defines the HAS_RECVMSG symbol, which
2059 indicates to the C program that the recvmsg() routine is available.
2061 d_regcmp (d_regcmp.U):
2062 This variable conditionally defines the HAS_REGCMP symbol, which
2063 indicates to the C program that the regcmp() routine is available
2064 for regular patern matching (usally on System V).
2066 d_regcomp (d_regcmp.U):
2067 This variable conditionally defines the HAS_REGCOMP symbol, which
2068 indicates to the C program that the regcomp() routine is available
2069 for regular patern matching (usally on POSIX.2 conforming systems).
2071 d_remainder (d_remainder.U):
2072 This variable conditionally defines the HAS_REMAINDER symbol, which
2073 indicates to the C program that the remainder() routine is available.
2075 d_remquo (d_remquo.U):
2076 This variable conditionally defines the HAS_REMQUO symbol, which
2077 indicates to the C program that the remquo() routine is available.
2079 d_rename (d_rename.U):
2080 This variable conditionally defines the HAS_RENAME symbol, which
2081 indicates to the C program that the rename() routine is available
2084 d_rewinddir (d_readdir.U):
2085 This variable conditionally defines HAS_REWINDDIR if rewinddir() is
2089 This variable conditionally defines the HAS_RINT symbol, which
2090 indicates to the C program that the rint() routine is available.
2092 d_rmdir (d_rmdir.U):
2093 This variable conditionally defines HAS_RMDIR if rmdir() is
2094 available to remove directories.
2096 d_round (d_round.U):
2097 This variable conditionally defines the HAS_ROUND symbol, which
2098 indicates to the C program that the round() routine is available.
2100 d_safebcpy (d_safebcpy.U):
2101 This variable conditionally defines the HAS_SAFE_BCOPY symbol if
2102 the bcopy() routine can do overlapping copies. Normally, you
2103 should probably use memmove().
2105 d_safemcpy (d_safemcpy.U):
2106 This variable conditionally defines the HAS_SAFE_MEMCPY symbol if
2107 the memcpy() routine can do overlapping copies.
2108 For overlapping copies, memmove() should be used, if available.
2110 d_sanemcmp (d_sanemcmp.U):
2111 This variable conditionally defines the HAS_SANE_MEMCMP symbol if
2112 the memcpy() routine is available and can be used to compare relative
2113 magnitudes of chars with their high bits set.
2115 d_sbrkproto (d_sbrkproto.U):
2116 This variable conditionally defines the HAS_SBRK_PROTO symbol,
2117 which indicates to the C program that the system provides
2118 a prototype for the sbrk() function. Otherwise, it is
2119 up to the program to supply one.
2121 d_scalbn (d_scalbn.U):
2122 This variable conditionally defines the HAS_SCALBN symbol, which
2123 indicates to the C program that the scalbn() routine is available.
2125 d_scalbnl (d_scalbnl.U):
2126 This variable conditionally defines the HAS_SCALBNL symbol, which
2127 indicates to the C program that the scalbnl() routine is available.
2128 If ilogbl is also present we can emulate frexpl.
2130 d_sched_yield (d_pthread_y.U):
2131 This variable conditionally defines the HAS_SCHED_YIELD
2132 symbol if the sched_yield routine is available to yield
2133 the execution of the current thread.
2135 d_scm_rights (d_socket.U):
2136 This variable conditionally defines the HAS_SCM_RIGHTS symbol,
2137 which indicates that the SCM_RIGHTS is available. #ifdef is
2138 not enough because it may be an enum, glibc has been known to do this.
2140 d_SCNfldbl (longdblfio.U):
2141 This variable conditionally defines the PERL_PRIfldbl symbol, which
2142 indicates that stdio has a symbol to scan long doubles.
2144 d_seekdir (d_readdir.U):
2145 This variable conditionally defines HAS_SEEKDIR if seekdir() is
2148 d_select (d_select.U):
2149 This variable conditionally defines HAS_SELECT if select() is
2150 available to select active file descriptors. A <sys/time.h>
2151 inclusion may be necessary for the timeout field.
2154 This variable conditionally defines the HAS_SEM symbol, which
2155 indicates that the entire sem*(2) library is present.
2157 d_semctl (d_semctl.U):
2158 This variable conditionally defines the HAS_SEMCTL symbol, which
2159 indicates to the C program that the semctl() routine is available.
2161 d_semctl_semid_ds (d_union_semun.U):
2162 This variable conditionally defines USE_SEMCTL_SEMID_DS, which
2163 indicates that struct semid_ds * is to be used for semctl IPC_STAT.
2165 d_semctl_semun (d_union_semun.U):
2166 This variable conditionally defines USE_SEMCTL_SEMUN, which
2167 indicates that union semun is to be used for semctl IPC_STAT.
2169 d_semget (d_semget.U):
2170 This variable conditionally defines the HAS_SEMGET symbol, which
2171 indicates to the C program that the semget() routine is available.
2173 d_semop (d_semop.U):
2174 This variable conditionally defines the HAS_SEMOP symbol, which
2175 indicates to the C program that the semop() routine is available.
2177 d_sendmsg (d_sendmsg.U):
2178 This variable conditionally defines the HAS_SENDMSG symbol, which
2179 indicates to the C program that the sendmsg() routine is available.
2181 d_setegid (d_setegid.U):
2182 This variable conditionally defines the HAS_SETEGID symbol, which
2183 indicates to the C program that the setegid() routine is available
2184 to change the effective gid of the current program.
2186 d_seteuid (d_seteuid.U):
2187 This variable conditionally defines the HAS_SETEUID symbol, which
2188 indicates to the C program that the seteuid() routine is available
2189 to change the effective uid of the current program.
2191 d_setgrent (d_setgrent.U):
2192 This variable conditionally defines the HAS_SETGRENT symbol, which
2193 indicates to the C program that the setgrent() routine is available
2194 for initializing sequential access to the group database.
2196 d_setgrent_r (d_setgrent_r.U):
2197 This variable conditionally defines the HAS_SETGRENT_R symbol,
2198 which indicates to the C program that the setgrent_r()
2199 routine is available.
2201 d_setgrps (d_setgrps.U):
2202 This variable conditionally defines the HAS_SETGROUPS symbol, which
2203 indicates to the C program that the setgroups() routine is available
2204 to set the list of process groups.
2206 d_sethent (d_sethent.U):
2207 This variable conditionally defines HAS_SETHOSTENT if sethostent() is
2210 d_sethostent_r (d_sethostent_r.U):
2211 This variable conditionally defines the HAS_SETHOSTENT_R symbol,
2212 which indicates to the C program that the sethostent_r()
2213 routine is available.
2215 d_setitimer (d_setitimer.U):
2216 This variable conditionally defines the HAS_SETITIMER symbol, which
2217 indicates to the C program that the setitimer() routine is available.
2219 d_setlinebuf (d_setlnbuf.U):
2220 This variable conditionally defines the HAS_SETLINEBUF symbol, which
2221 indicates to the C program that the setlinebuf() routine is available
2222 to change stderr or stdout from block-buffered or unbuffered to a
2225 d_setlocale (d_setlocale.U):
2226 This variable conditionally defines HAS_SETLOCALE if setlocale() is
2227 available to handle locale-specific ctype implementations.
2229 d_setlocale_r (d_setlocale_r.U):
2230 This variable conditionally defines the HAS_SETLOCALE_R symbol,
2231 which indicates to the C program that the setlocale_r()
2232 routine is available.
2234 d_setnent (d_setnent.U):
2235 This variable conditionally defines HAS_SETNETENT if setnetent() is
2238 d_setnetent_r (d_setnetent_r.U):
2239 This variable conditionally defines the HAS_SETNETENT_R symbol,
2240 which indicates to the C program that the setnetent_r()
2241 routine is available.
2243 d_setpent (d_setpent.U):
2244 This variable conditionally defines HAS_SETPROTOENT if setprotoent() is
2247 d_setpgid (d_setpgid.U):
2248 This variable conditionally defines the HAS_SETPGID symbol if the
2249 setpgid(pid, gpid) function is available to set process group ID.
2251 d_setpgrp (d_setpgrp.U):
2252 This variable conditionally defines HAS_SETPGRP if setpgrp() is
2253 available to set the current process group.
2255 d_setpgrp2 (d_setpgrp2.U):
2256 This variable conditionally defines the HAS_SETPGRP2 symbol, which
2257 indicates to the C program that the setpgrp2() (as in DG/UX) routine
2258 is available to set the current process group.
2260 d_setprior (d_setprior.U):
2261 This variable conditionally defines HAS_SETPRIORITY if setpriority()
2262 is available to set a process's priority.
2264 d_setproctitle (d_setproctitle.U):
2265 This variable conditionally defines the HAS_SETPROCTITLE symbol,
2266 which indicates to the C program that the setproctitle() routine
2269 d_setprotoent_r (d_setprotoent_r.U):
2270 This variable conditionally defines the HAS_SETPROTOENT_R symbol,
2271 which indicates to the C program that the setprotoent_r()
2272 routine is available.
2274 d_setpwent (d_setpwent.U):
2275 This variable conditionally defines the HAS_SETPWENT symbol, which
2276 indicates to the C program that the setpwent() routine is available
2277 for initializing sequential access to the passwd database.
2279 d_setpwent_r (d_setpwent_r.U):
2280 This variable conditionally defines the HAS_SETPWENT_R symbol,
2281 which indicates to the C program that the setpwent_r()
2282 routine is available.
2284 d_setregid (d_setregid.U):
2285 This variable conditionally defines HAS_SETREGID if setregid() is
2286 available to change the real and effective gid of the current
2289 d_setresgid (d_setregid.U):
2290 This variable conditionally defines HAS_SETRESGID if setresgid() is
2291 available to change the real, effective and saved gid of the current
2294 d_setresuid (d_setreuid.U):
2295 This variable conditionally defines HAS_SETREUID if setresuid() is
2296 available to change the real, effective and saved uid of the current
2299 d_setreuid (d_setreuid.U):
2300 This variable conditionally defines HAS_SETREUID if setreuid() is
2301 available to change the real and effective uid of the current
2304 d_setrgid (d_setrgid.U):
2305 This variable conditionally defines the HAS_SETRGID symbol, which
2306 indicates to the C program that the setrgid() routine is available
2307 to change the real gid of the current program.
2309 d_setruid (d_setruid.U):
2310 This variable conditionally defines the HAS_SETRUID symbol, which
2311 indicates to the C program that the setruid() routine is available
2312 to change the real uid of the current program.
2314 d_setsent (d_setsent.U):
2315 This variable conditionally defines HAS_SETSERVENT if setservent() is
2318 d_setservent_r (d_setservent_r.U):
2319 This variable conditionally defines the HAS_SETSERVENT_R symbol,
2320 which indicates to the C program that the setservent_r()
2321 routine is available.
2323 d_setsid (d_setsid.U):
2324 This variable conditionally defines HAS_SETSID if setsid() is
2325 available to set the process group ID.
2327 d_setvbuf (d_setvbuf.U):
2328 This variable conditionally defines the HAS_SETVBUF symbol, which
2329 indicates to the C program that the setvbuf() routine is available
2330 to change buffering on an open stdio stream.
2333 This variable conditionally defines the HAS_SHM symbol, which
2334 indicates that the entire shm*(2) library is present.
2336 d_shmat (d_shmat.U):
2337 This variable conditionally defines the HAS_SHMAT symbol, which
2338 indicates to the C program that the shmat() routine is available.
2340 d_shmatprototype (d_shmat.U):
2341 This variable conditionally defines the HAS_SHMAT_PROTOTYPE
2342 symbol, which indicates that sys/shm.h has a prototype for
2345 d_shmctl (d_shmctl.U):
2346 This variable conditionally defines the HAS_SHMCTL symbol, which
2347 indicates to the C program that the shmctl() routine is available.
2349 d_shmdt (d_shmdt.U):
2350 This variable conditionally defines the HAS_SHMDT symbol, which
2351 indicates to the C program that the shmdt() routine is available.
2353 d_shmget (d_shmget.U):
2354 This variable conditionally defines the HAS_SHMGET symbol, which
2355 indicates to the C program that the shmget() routine is available.
2357 d_sigaction (d_sigaction.U):
2358 This variable conditionally defines the HAS_SIGACTION symbol, which
2359 indicates that the Vr4 sigaction() routine is available.
2361 d_siginfo_si_addr (d_siginfo_si.U):
2362 This variable conditionally defines the HAS_SIGINFO_SI_ADDR symbol,
2363 which indicates that the siginfo_t struct has the si_addr member.
2365 d_siginfo_si_band (d_siginfo_si.U):
2366 This variable conditionally defines the HAS_SIGINFO_SI_BAND symbol,
2367 which indicates that the siginfo_t struct has the si_band member.
2369 d_siginfo_si_errno (d_siginfo_si.U):
2370 This variable conditionally defines the HAS_SIGINFO_SI_ERRNO symbol,
2371 which indicates that the siginfo_t struct has the si_errno member.
2373 d_siginfo_si_fd (d_siginfo_si.U):
2374 This variable conditionally defines the HAS_SIGINFO_SI_FD symbol,
2375 which indicates that the siginfo_t struct has the si_fd member.
2377 d_siginfo_si_pid (d_siginfo_si.U):
2378 This variable conditionally defines the HAS_SIGINFO_SI_PID symbol,
2379 which indicates that the siginfo_t struct has the si_pid member.
2381 d_siginfo_si_status (d_siginfo_si.U):
2382 This variable conditionally defines the HAS_SIGINFO_SI_STATUS symbol,
2383 which indicates that the siginfo_t struct has the si_status member.
2385 d_siginfo_si_uid (d_siginfo_si.U):
2386 This variable conditionally defines the HAS_SIGINFO_SI_UID symbol,
2387 which indicates that the siginfo_t struct has the si_uid member.
2389 d_siginfo_si_value (d_siginfo_si.U):
2390 This variable conditionally defines the HAS_SIGINFO_SI_VALUE symbol,
2391 which indicates that the siginfo_t struct has the si_value member.
2393 d_signbit (d_signbit.U):
2394 This variable conditionally defines the HAS_SIGNBIT symbol, which
2395 indicates to the C program that the signbit() routine is available
2396 and safe to use with perl's intern NV type.
2398 d_sigprocmask (d_sigprocmask.U):
2399 This variable conditionally defines HAS_SIGPROCMASK
2400 if sigprocmask() is available to examine or change the signal mask
2401 of the calling process.
2403 d_sigsetjmp (d_sigsetjmp.U):
2404 This variable conditionally defines the HAS_SIGSETJMP symbol,
2405 which indicates that the sigsetjmp() routine is available to
2406 call setjmp() and optionally save the process's signal mask.
2408 d_sin6_scope_id (d_socket.U):
2409 This variable conditionally defines the HAS_SIN6_SCOPE_ID symbol, which
2410 indicates that a struct sockaddr_in6 structure has the sin6_scope_id
2413 d_sitearch (sitearch.U):
2414 This variable conditionally defines SITEARCH to hold the pathname
2415 of architecture-dependent library files for $package. If
2416 $sitearch is the same as $archlib, then this is set to undef.
2418 d_snprintf (d_snprintf.U):
2419 This variable conditionally defines the HAS_SNPRINTF symbol, which
2420 indicates to the C program that the snprintf () library function
2423 d_sockaddr_in6 (d_socket.U):
2424 This variable conditionally defines the HAS_SOCKADDR_IN6 symbol, which
2425 indicates the availability of a struct sockaddr_in6.
2427 d_sockaddr_sa_len (d_socket.U):
2428 This variable conditionally defines the HAS_SOCKADDR_SA_LEN symbol,
2429 which indicates that a struct sockaddr structure has the sa_len
2432 d_sockatmark (d_sockatmark.U):
2433 This variable conditionally defines the HAS_SOCKATMARK symbol, which
2434 indicates to the C program that the sockatmark() routine is available.
2436 d_sockatmarkproto (d_sockatmarkproto.U):
2437 This variable conditionally defines the HAS_SOCKATMARK_PROTO symbol,
2438 which indicates to the C program that the system provides
2439 a prototype for the sockatmark() function. Otherwise, it is
2440 up to the program to supply one.
2442 d_socket (d_socket.U):
2443 This variable conditionally defines HAS_SOCKET, which indicates
2444 that the BSD socket interface is supported.
2446 d_socklen_t (d_socklen_t.U):
2447 This symbol will be defined if the C compiler supports socklen_t.
2449 d_sockpair (d_socket.U):
2450 This variable conditionally defines the HAS_SOCKETPAIR symbol, which
2451 indicates that the BSD socketpair() is supported.
2453 d_socks5_init (d_socks5_init.U):
2454 This variable conditionally defines the HAS_SOCKS5_INIT symbol, which
2455 indicates to the C program that the socks5_init() routine is available.
2457 d_sprintf_returns_strlen (d_sprintf_len.U):
2458 This variable defines whether sprintf returns the length of the string
2459 (as per the ANSI spec). Some C libraries retain compatibility with
2460 pre-ANSI C and return a pointer to the passed in buffer; for these
2461 this variable will be undef.
2463 d_sqrtl (d_sqrtl.U):
2464 This variable conditionally defines the HAS_SQRTL symbol, which
2465 indicates to the C program that the sqrtl() routine is available.
2467 d_srand48_r (d_srand48_r.U):
2468 This variable conditionally defines the HAS_SRAND48_R symbol,
2469 which indicates to the C program that the srand48_r()
2470 routine is available.
2472 d_srandom_r (d_srandom_r.U):
2473 This variable conditionally defines the HAS_SRANDOM_R symbol,
2474 which indicates to the C program that the srandom_r()
2475 routine is available.
2477 d_sresgproto (d_sresgproto.U):
2478 This variable conditionally defines the HAS_SETRESGID_PROTO symbol,
2479 which indicates to the C program that the system provides
2480 a prototype for the setresgid() function. Otherwise, it is
2481 up to the program to supply one.
2483 d_sresuproto (d_sresuproto.U):
2484 This variable conditionally defines the HAS_SETRESUID_PROTO symbol,
2485 which indicates to the C program that the system provides
2486 a prototype for the setresuid() function. Otherwise, it is
2487 up to the program to supply one.
2490 This variable conditionally defines HAS_STAT if stat() is
2491 available to get file status.
2493 d_statblks (d_statblks.U):
2494 This variable conditionally defines USE_STAT_BLOCKS
2495 if this system has a stat structure declaring
2496 st_blksize and st_blocks.
2498 d_statfs_f_flags (d_statfs_f_flags.U):
2499 This variable conditionally defines the HAS_STRUCT_STATFS_F_FLAGS
2500 symbol, which indicates to struct statfs from has f_flags member.
2501 This kind of struct statfs is coming from sys/mount.h (BSD),
2502 not from sys/statfs.h (SYSV).
2504 d_statfs_s (d_statfs_s.U):
2505 This variable conditionally defines the HAS_STRUCT_STATFS symbol,
2506 which indicates that the struct statfs is supported.
2508 d_static_inline (d_static_inline.U):
2509 This variable conditionally defines the HAS_STATIC_INLINE symbol,
2510 which indicates that the C compiler supports C99-style static
2511 inline. That is, the function can't be called from another
2514 d_statvfs (d_statvfs.U):
2515 This variable conditionally defines the HAS_STATVFS symbol, which
2516 indicates to the C program that the statvfs() routine is available.
2518 d_stdio_cnt_lval (d_stdstdio.U):
2519 This variable conditionally defines STDIO_CNT_LVALUE if the
2520 FILE_cnt macro can be used as an lvalue.
2522 d_stdio_ptr_lval (d_stdstdio.U):
2523 This variable conditionally defines STDIO_PTR_LVALUE if the
2524 FILE_ptr macro can be used as an lvalue.
2526 d_stdio_ptr_lval_nochange_cnt (d_stdstdio.U):
2527 This symbol is defined if using the FILE_ptr macro as an lvalue
2528 to increase the pointer by n leaves File_cnt(fp) unchanged.
2530 d_stdio_ptr_lval_sets_cnt (d_stdstdio.U):
2531 This symbol is defined if using the FILE_ptr macro as an lvalue
2532 to increase the pointer by n has the side effect of decreasing the
2533 value of File_cnt(fp) by n.
2535 d_stdio_stream_array (stdio_streams.U):
2536 This variable tells whether there is an array holding
2539 d_stdiobase (d_stdstdio.U):
2540 This variable conditionally defines USE_STDIO_BASE if this system
2541 has a FILE structure declaring a usable _base field (or equivalent)
2544 d_stdstdio (d_stdstdio.U):
2545 This variable conditionally defines USE_STDIO_PTR if this system
2546 has a FILE structure declaring usable _ptr and _cnt fields (or
2547 equivalent) in stdio.h.
2549 d_strchr (d_strchr.U):
2550 This variable conditionally defines HAS_STRCHR if strchr() and
2551 strrchr() are available for string searching.
2553 d_strcoll (d_strcoll.U):
2554 This variable conditionally defines HAS_STRCOLL if strcoll() is
2555 available to compare strings using collating information.
2557 d_strctcpy (d_strctcpy.U):
2558 This variable conditionally defines the USE_STRUCT_COPY symbol, which
2559 indicates to the C program that this C compiler knows how to copy
2562 d_strerrm (d_strerror.U):
2563 This variable holds what Strerror is defined as to translate an error
2564 code condition into an error message string. It could be 'strerror'
2565 or a more complex macro emulating strerror with sys_errlist[], or the
2566 "unknown" string when both strerror and sys_errlist are missing.
2568 d_strerror (d_strerror.U):
2569 This variable conditionally defines HAS_STRERROR if strerror() is
2570 available to translate error numbers to strings.
2572 d_strerror_l (d_strerror_l.U):
2573 This variable conditionally defines the HAS_STRERROR_L symbol, which
2574 indicates to the C program that the strerror_l() routine is available
2575 to return the error message for a given errno value in a particular
2576 locale (identified by a locale_t object).
2578 d_strerror_r (d_strerror_r.U):
2579 This variable conditionally defines the HAS_STRERROR_R symbol,
2580 which indicates to the C program that the strerror_r()
2581 routine is available.
2583 d_strftime (d_strftime.U):
2584 This variable conditionally defines the HAS_STRFTIME symbol, which
2585 indicates to the C program that the strftime() routine is available.
2587 d_strlcat (d_strlcat.U):
2588 This variable conditionally defines the HAS_STRLCAT symbol, which
2589 indicates to the C program that the strlcat () routine is available.
2591 d_strlcpy (d_strlcpy.U):
2592 This variable conditionally defines the HAS_STRLCPY symbol, which
2593 indicates to the C program that the strlcpy () routine is available.
2595 d_strtod (d_strtod.U):
2596 This variable conditionally defines the HAS_STRTOD symbol, which
2597 indicates to the C program that the strtod() routine is available
2598 to provide better numeric string conversion than atof().
2600 d_strtol (d_strtol.U):
2601 This variable conditionally defines the HAS_STRTOL symbol, which
2602 indicates to the C program that the strtol() routine is available
2603 to provide better numeric string conversion than atoi() and friends.
2605 d_strtold (d_strtold.U):
2606 This variable conditionally defines the HAS_STRTOLD symbol, which
2607 indicates to the C program that the strtold() routine is available.
2609 d_strtoll (d_strtoll.U):
2610 This variable conditionally defines the HAS_STRTOLL symbol, which
2611 indicates to the C program that the strtoll() routine is available.
2613 d_strtoq (d_strtoq.U):
2614 This variable conditionally defines the HAS_STRTOQ symbol, which
2615 indicates to the C program that the strtoq() routine is available.
2617 d_strtoul (d_strtoul.U):
2618 This variable conditionally defines the HAS_STRTOUL symbol, which
2619 indicates to the C program that the strtoul() routine is available
2620 to provide conversion of strings to unsigned long.
2622 d_strtoull (d_strtoull.U):
2623 This variable conditionally defines the HAS_STRTOULL symbol, which
2624 indicates to the C program that the strtoull() routine is available.
2626 d_strtouq (d_strtouq.U):
2627 This variable conditionally defines the HAS_STRTOUQ symbol, which
2628 indicates to the C program that the strtouq() routine is available.
2630 d_strxfrm (d_strxfrm.U):
2631 This variable conditionally defines HAS_STRXFRM if strxfrm() is
2632 available to transform strings.
2634 d_suidsafe (d_dosuid.U):
2635 This variable conditionally defines SETUID_SCRIPTS_ARE_SECURE_NOW
2636 if setuid scripts can be secure. This test looks in /dev/fd/.
2638 d_symlink (d_symlink.U):
2639 This variable conditionally defines the HAS_SYMLINK symbol, which
2640 indicates to the C program that the symlink() routine is available
2641 to create symbolic links.
2643 d_syscall (d_syscall.U):
2644 This variable conditionally defines HAS_SYSCALL if syscall() is
2645 available call arbitrary system calls.
2647 d_syscallproto (d_syscallproto.U):
2648 This variable conditionally defines the HAS_SYSCALL_PROTO symbol,
2649 which indicates to the C program that the system provides
2650 a prototype for the syscall() function. Otherwise, it is
2651 up to the program to supply one.
2653 d_sysconf (d_sysconf.U):
2654 This variable conditionally defines the HAS_SYSCONF symbol, which
2655 indicates to the C program that the sysconf() routine is available
2656 to determine system related limits and options.
2658 d_sysernlst (d_strerror.U):
2659 This variable conditionally defines HAS_SYS_ERRNOLIST if sys_errnolist[]
2660 is available to translate error numbers to the symbolic name.
2662 d_syserrlst (d_strerror.U):
2663 This variable conditionally defines HAS_SYS_ERRLIST if sys_errlist[] is
2664 available to translate error numbers to strings.
2666 d_system (d_system.U):
2667 This variable conditionally defines HAS_SYSTEM if system() is
2668 available to issue a shell command.
2670 d_tcgetpgrp (d_tcgtpgrp.U):
2671 This variable conditionally defines the HAS_TCGETPGRP symbol, which
2672 indicates to the C program that the tcgetpgrp() routine is available.
2673 to get foreground process group ID.
2675 d_tcsetpgrp (d_tcstpgrp.U):
2676 This variable conditionally defines the HAS_TCSETPGRP symbol, which
2677 indicates to the C program that the tcsetpgrp() routine is available
2678 to set foreground process group ID.
2680 d_telldir (d_readdir.U):
2681 This variable conditionally defines HAS_TELLDIR if telldir() is
2684 d_telldirproto (d_telldirproto.U):
2685 This variable conditionally defines the HAS_TELLDIR_PROTO symbol,
2686 which indicates to the C program that the system provides
2687 a prototype for the telldir() function. Otherwise, it is
2688 up to the program to supply one.
2690 d_tgamma (d_tgamma.U):
2691 This variable conditionally defines the HAS_TGAMMA symbol, which
2692 indicates to the C program that the tgamma() routine is available
2693 for the gamma function. See also d_lgamma.
2696 This variable conditionally defines the HAS_TIME symbol, which indicates
2697 that the time() routine exists. The time() routine is normally
2698 provided on UNIX systems.
2700 d_timegm (d_timegm.U):
2701 This variable conditionally defines the HAS_TIMEGM symbol, which
2702 indicates to the C program that the timegm () routine is available.
2704 d_times (d_times.U):
2705 This variable conditionally defines the HAS_TIMES symbol, which indicates
2706 that the times() routine exists. The times() routine is normally
2707 provided on UNIX systems. You may have to include <sys/times.h>.
2709 d_tm_tm_gmtoff (i_time.U):
2710 This variable conditionally defines HAS_TM_TM_GMTOFF, which indicates
2711 indicates to the C program that the struct tm has the tm_gmtoff field.
2713 d_tm_tm_zone (i_time.U):
2714 This variable conditionally defines HAS_TM_TM_ZONE, which indicates
2715 indicates to the C program that the struct tm has the tm_zone field.
2717 d_tmpnam_r (d_tmpnam_r.U):
2718 This variable conditionally defines the HAS_TMPNAM_R symbol,
2719 which indicates to the C program that the tmpnam_r()
2720 routine is available.
2722 d_trunc (d_trunc.U):
2723 This variable conditionally defines the HAS_TRUNC symbol, which
2724 indicates to the C program that the trunc() routine is available
2725 to round doubles towards zero.
2727 d_truncate (d_truncate.U):
2728 This variable conditionally defines HAS_TRUNCATE if truncate() is
2729 available to truncate files.
2731 d_truncl (d_truncl.U):
2732 This variable conditionally defines the HAS_TRUNCL symbol, which
2733 indicates to the C program that the truncl() routine is available
2734 to round long doubles towards zero. If copysignl is also present,
2735 we can emulate modfl.
2737 d_ttyname_r (d_ttyname_r.U):
2738 This variable conditionally defines the HAS_TTYNAME_R symbol,
2739 which indicates to the C program that the ttyname_r()
2740 routine is available.
2742 d_tzname (d_tzname.U):
2743 This variable conditionally defines HAS_TZNAME if tzname[] is
2744 available to access timezone names.
2746 d_u32align (d_u32align.U):
2747 This variable tells whether you must access character data
2748 through U32-aligned pointers.
2750 d_ualarm (d_ualarm.U):
2751 This variable conditionally defines the HAS_UALARM symbol, which
2752 indicates to the C program that the ualarm() routine is available.
2754 d_umask (d_umask.U):
2755 This variable conditionally defines the HAS_UMASK symbol, which
2756 indicates to the C program that the umask() routine is available.
2757 to set and get the value of the file creation mask.
2759 d_uname (d_gethname.U):
2760 This variable conditionally defines the HAS_UNAME symbol, which
2761 indicates to the C program that the uname() routine may be
2762 used to derive the host name.
2764 d_union_semun (d_union_semun.U):
2765 This variable conditionally defines HAS_UNION_SEMUN if the
2766 union semun is defined by including <sys/sem.h>.
2768 d_unordered (d_unordered.U):
2769 This variable conditionally defines the HAS_UNORDERED symbol, which
2770 indicates to the C program that the unordered() routine is available.
2772 d_unsetenv (d_unsetenv.U):
2773 This variable conditionally defines the HAS_UNSETENV symbol, which
2774 indicates to the C program that the unsetenv () routine is available.
2776 d_uselocale (d_newlocale.U):
2777 This variable conditionally defines the HAS_USELOCALE symbol, which
2778 indicates to the C program that the uselocale() routine is available
2779 to set the current locale for the calling thread.
2781 d_usleep (d_usleep.U):
2782 This variable conditionally defines HAS_USLEEP if usleep() is
2783 available to do high granularity sleeps.
2785 d_usleepproto (d_usleepproto.U):
2786 This variable conditionally defines the HAS_USLEEP_PROTO symbol,
2787 which indicates to the C program that the system provides
2788 a prototype for the usleep() function. Otherwise, it is
2789 up to the program to supply one.
2791 d_ustat (d_ustat.U):
2792 This variable conditionally defines HAS_USTAT if ustat() is
2793 available to query file system statistics by dev_t.
2795 d_vendorarch (vendorarch.U):
2796 This variable conditionally defined PERL_VENDORARCH.
2798 d_vendorbin (vendorbin.U):
2799 This variable conditionally defines PERL_VENDORBIN.
2801 d_vendorlib (vendorlib.U):
2802 This variable conditionally defines PERL_VENDORLIB.
2804 d_vendorscript (vendorscript.U):
2805 This variable conditionally defines PERL_VENDORSCRIPT.
2807 d_vfork (d_vfork.U):
2808 This variable conditionally defines the HAS_VFORK symbol, which
2809 indicates the vfork() routine is available.
2811 d_void_closedir (d_closedir.U):
2812 This variable conditionally defines VOID_CLOSEDIR if closedir()
2813 does not return a value.
2815 d_voidsig (d_voidsig.U):
2816 This variable conditionally defines VOIDSIG if this system
2817 declares "void (*signal(...))()" in signal.h. The old way was to
2818 declare it as "int (*signal(...))()".
2820 d_voidtty (i_sysioctl.U):
2821 This variable conditionally defines USE_IOCNOTTY to indicate that the
2822 ioctl() call with TIOCNOTTY should be used to void tty association.
2823 Otherwise (on USG probably), it is enough to close the standard file
2824 descriptors and do a setpgrp().
2826 d_volatile (d_volatile.U):
2827 This variable conditionally defines the HASVOLATILE symbol, which
2828 indicates to the C program that this C compiler knows about the
2829 volatile declaration.
2831 d_vprintf (d_vprintf.U):
2832 This variable conditionally defines the HAS_VPRINTF symbol, which
2833 indicates to the C program that the vprintf() routine is available
2834 to printf with a pointer to an argument list.
2836 d_vsnprintf (d_snprintf.U):
2837 This variable conditionally defines the HAS_VSNPRINTF symbol, which
2838 indicates to the C program that the vsnprintf () library function
2841 d_wait4 (d_wait4.U):
2842 This variable conditionally defines the HAS_WAIT4 symbol, which
2843 indicates the wait4() routine is available.
2845 d_waitpid (d_waitpid.U):
2846 This variable conditionally defines HAS_WAITPID if waitpid() is
2847 available to wait for child process.
2849 d_wcscmp (d_wcscmp.U):
2850 This variable conditionally defines the HAS_WCSCMP symbol if the
2851 wcscmp() routine is available and can be used to compare wide
2854 d_wcstombs (d_wcstombs.U):
2855 This variable conditionally defines the HAS_WCSTOMBS symbol, which
2856 indicates to the C program that the wcstombs() routine is available
2857 to convert wide character strings to multibyte strings.
2859 d_wcsxfrm (d_wcsxfrm.U):
2860 This variable conditionally defines the HAS_WCSXFRM symbol if the
2861 wcsxfrm() routine is available and can be used to compare wide
2864 d_wctomb (d_wctomb.U):
2865 This variable conditionally defines the HAS_WCTOMB symbol, which
2866 indicates to the C program that the wctomb() routine is available
2867 to convert a wide character to a multibyte.
2869 d_writev (d_writev.U):
2870 This variable conditionally defines the HAS_WRITEV symbol, which
2871 indicates to the C program that the writev() routine is available.
2874 This variable conditionally defines the symbol XENIX, which alerts
2875 the C program that it runs under Xenix.
2878 This variable is used internally by Configure to determine the
2879 full pathname (if any) of the date program. After Configure runs,
2880 the value is reset to a plain "date" and is not useful.
2882 db_hashtype (i_db.U):
2883 This variable contains the type of the hash structure element
2884 in the <db.h> header file. In older versions of DB, it was
2885 int, while in newer ones it is u_int32_t.
2887 db_prefixtype (i_db.U):
2888 This variable contains the type of the prefix structure element
2889 in the <db.h> header file. In older versions of DB, it was
2890 int, while in newer ones it is size_t.
2892 db_version_major (i_db.U):
2893 This variable contains the major version number of
2894 Berkeley DB found in the <db.h> header file.
2896 db_version_minor (i_db.U):
2897 This variable contains the minor version number of
2898 Berkeley DB found in the <db.h> header file.
2899 For DB version 1 this is always 0.
2901 db_version_patch (i_db.U):
2902 This variable contains the patch version number of
2903 Berkeley DB found in the <db.h> header file.
2904 For DB version 1 this is always 0.
2906 direntrytype (i_dirent.U):
2907 This symbol is set to 'struct direct' or 'struct dirent' depending on
2908 whether dirent is available or not. You should use this pseudo type to
2909 portably declare your directory entries.
2912 This variable contains the extension that is to be used for the
2913 dynamically loaded modules that perl generates.
2916 This variable contains the name of the dynamic loading file that
2917 will be used with the package.
2919 doubleinfbytes (infnan.U):
2920 This variable contains comma-separated list of hexadecimal bytes
2921 for the double precision infinity.
2923 doublekind (longdblfio.U):
2924 This variable, if defined, encodes the type of a double:
2925 1 = IEEE 754 32-bit little endian,
2926 2 = IEEE 754 32-bit big endian,
2927 3 = IEEE 754 64-bit little endian,
2928 4 = IEEE 754 64-bit big endian,
2929 5 = IEEE 754 128-bit little endian,
2930 6 = IEEE 754 128-bit big endian,
2931 7 = IEEE 754 64-bit mixed endian le-be,
2932 8 = IEEE 754 64-bit mixed endian be-le,
2933 9 = VAX 32bit little endian F float format
2934 10 = VAX 64bit little endian D float format
2935 11 = VAX 64bit little endian G float format
2936 -1 = unknown format.
2938 doublemantbits (mantbits.U):
2939 This symbol, if defined, tells how many mantissa bits
2940 there are in double precision floating point format.
2941 Note that this is usually DBL_MANT_DIG minus one, since
2942 with the standard IEEE 754 formats DBL_MANT_DIG includes
2943 the implicit bit which doesn't really exist.
2945 doublenanbytes (infnan.U):
2946 This variable contains comma-separated list of hexadecimal bytes
2947 for the double precision not-a-number.
2949 doublesize (doublesize.U):
2950 This variable contains the value of the DOUBLESIZE symbol, which
2951 indicates to the C program how many bytes there are in a double.
2953 drand01 (randfunc.U):
2954 Indicates the macro to be used to generate normalized
2955 random numbers. Uses randfunc, often divided by
2956 (double) (((unsigned long) 1 << randbits)) in order to
2957 normalize the result.
2958 In C programs, the macro 'Drand01' is mapped to drand01.
2960 drand48_r_proto (d_drand48_r.U):
2961 This variable encodes the prototype of drand48_r.
2962 It is zero if d_drand48_r is undef, and one of the
2963 REENTRANT_PROTO_T_ABC macros of reentr.h if d_drand48_r
2966 dtrace (usedtrace.U):
2967 This variable holds the location of the dtrace executable.
2969 dtraceobject (dtraceobject.U):
2970 Whether we need to build an object file with the dtrace tool.
2972 dynamic_ext (Extensions.U):
2973 This variable holds a list of XS extension files we want to
2974 link dynamically into the package. It is used by Makefile.
2976 eagain (nblock_io.U):
2977 This variable bears the symbolic errno code set by read() when no
2978 data is present on the file and non-blocking I/O was enabled (otherwise,
2979 read() blocks naturally).
2982 This variable conditionally defines EBCDIC if this
2983 system uses EBCDIC encoding.
2986 This variable is used internally by Configure to determine the
2987 full pathname (if any) of the echo program. After Configure runs,
2988 the value is reset to a plain "echo" and is not useful.
2991 This variable is used internally by Configure to determine the
2992 full pathname (if any) of the egrep program. After Configure runs,
2993 the value is reset to a plain "egrep" and is not useful.
2996 This variable is defined but not used by Configure.
2997 The value is the empty string and is not useful.
2999 endgrent_r_proto (d_endgrent_r.U):
3000 This variable encodes the prototype of endgrent_r.
3001 It is zero if d_endgrent_r is undef, and one of the
3002 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endgrent_r
3005 endhostent_r_proto (d_endhostent_r.U):
3006 This variable encodes the prototype of endhostent_r.
3007 It is zero if d_endhostent_r is undef, and one of the
3008 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endhostent_r
3011 endnetent_r_proto (d_endnetent_r.U):
3012 This variable encodes the prototype of endnetent_r.
3013 It is zero if d_endnetent_r is undef, and one of the
3014 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endnetent_r
3017 endprotoent_r_proto (d_endprotoent_r.U):
3018 This variable encodes the prototype of endprotoent_r.
3019 It is zero if d_endprotoent_r is undef, and one of the
3020 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endprotoent_r
3023 endpwent_r_proto (d_endpwent_r.U):
3024 This variable encodes the prototype of endpwent_r.
3025 It is zero if d_endpwent_r is undef, and one of the
3026 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endpwent_r
3029 endservent_r_proto (d_endservent_r.U):
3030 This variable encodes the prototype of endservent_r.
3031 It is zero if d_endservent_r is undef, and one of the
3032 REENTRANT_PROTO_T_ABC macros of reentr.h if d_endservent_r
3036 When running under Eunice this variable contains a command which will
3037 convert a shell script to the proper form of text file for it to be
3038 executable by the shell. On other systems it is a no-op.
3041 This is an old synonym for _exe.
3044 This variable is used internally by Configure to determine the
3045 full pathname (if any) of the expr program. After Configure runs,
3046 the value is reset to a plain "expr" and is not useful.
3048 extensions (Extensions.U):
3049 This variable holds a list of all extension files (both XS and
3050 non-xs) installed with the package. It is propagated to Config.pm
3051 and is typically used to test whether a particular extension
3055 ANSI C requires 'extern' where C++ requires 'extern "C"'. This
3056 variable can be used in Configure to do the right thing.
3059 This variable holds a list of extra modules to install.
3061 fflushall (fflushall.U):
3062 This symbol, if defined, tells that to flush
3063 all pending stdio output one must loop through all
3064 the stdio file handles stored in an array and fflush them.
3065 Note that if fflushNULL is defined, fflushall will not
3066 even be probed for and will be left undefined.
3068 fflushNULL (fflushall.U):
3069 This symbol, if defined, tells that fflush(NULL) correctly
3070 flushes all pending stdio output without side effects. In
3071 particular, on some platforms calling fflush(NULL) *still*
3072 corrupts STDIN if it is a pipe.
3075 This variable is defined but not used by Configure.
3076 The value is the empty string and is not useful.
3078 firstmakefile (Unix.U):
3079 This variable defines the first file searched by make. On unix,
3080 it is makefile (then Makefile). On case-insensitive systems,
3081 it might be something else. This is only used to deal with
3082 convoluted make depend tricks.
3085 This variable is defined but not used by Configure.
3086 The value is the empty string and is not useful.
3088 fpossize (fpossize.U):
3089 This variable contains the size of a fpostype in bytes.
3091 fpostype (fpostype.U):
3092 This variable defines Fpos_t to be something like fpos_t, long,
3093 uint, or whatever type is used to declare file positions in libc.
3095 freetype (mallocsrc.U):
3096 This variable contains the return type of free(). It is usually
3097 void, but occasionally int.
3100 This variable contains the command used by Configure
3101 to copy files from the target host. Useful and available
3102 only during Perl build.
3103 The string ':' if not cross-compiling.
3106 This variable contains the full pathname to 'ar', whether or
3107 not the user has specified 'portability'. This is only used
3111 This variable contains the full pathname to 'csh', whether or
3112 not the user has specified 'portability'. This is only used
3113 in the compiled C program, and we assume that all systems which
3114 can share this executable will have the same full pathname to
3117 full_sed (Loc_sed.U):
3118 This variable contains the full pathname to 'sed', whether or
3119 not the user has specified 'portability'. This is only used
3120 in the compiled C program, and we assume that all systems which
3121 can share this executable will have the same full pathname to
3124 gccansipedantic (gccvers.U):
3125 If GNU cc (gcc) is used, this variable will enable (if set) the
3126 -ansi and -pedantic ccflags for building core files (through
3127 cflags script). (See Porting/pumpkin.pod for full description).
3129 gccosandvers (gccvers.U):
3130 If GNU cc (gcc) is used, this variable holds the operating system
3131 and version used to compile gcc. It is set to '' if not gcc,
3132 or if nothing useful can be parsed as the os version.
3134 gccversion (gccvers.U):
3135 If GNU cc (gcc) is used, this variable holds '1' or '2' to
3136 indicate whether the compiler is version 1 or 2. This is used in
3137 setting some of the default cflags. It is set to '' if not gcc.
3139 getgrent_r_proto (d_getgrent_r.U):
3140 This variable encodes the prototype of getgrent_r.
3141 It is zero if d_getgrent_r is undef, and one of the
3142 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrent_r
3145 getgrgid_r_proto (d_getgrgid_r.U):
3146 This variable encodes the prototype of getgrgid_r.
3147 It is zero if d_getgrgid_r is undef, and one of the
3148 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrgid_r
3151 getgrnam_r_proto (d_getgrnam_r.U):
3152 This variable encodes the prototype of getgrnam_r.
3153 It is zero if d_getgrnam_r is undef, and one of the
3154 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrnam_r
3157 gethostbyaddr_r_proto (d_gethostbyaddr_r.U):
3158 This variable encodes the prototype of gethostbyaddr_r.
3159 It is zero if d_gethostbyaddr_r is undef, and one of the
3160 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyaddr_r
3163 gethostbyname_r_proto (d_gethostbyname_r.U):
3164 This variable encodes the prototype of gethostbyname_r.
3165 It is zero if d_gethostbyname_r is undef, and one of the
3166 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyname_r
3169 gethostent_r_proto (d_gethostent_r.U):
3170 This variable encodes the prototype of gethostent_r.
3171 It is zero if d_gethostent_r is undef, and one of the
3172 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostent_r
3175 getlogin_r_proto (d_getlogin_r.U):
3176 This variable encodes the prototype of getlogin_r.
3177 It is zero if d_getlogin_r is undef, and one of the
3178 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getlogin_r
3181 getnetbyaddr_r_proto (d_getnetbyaddr_r.U):
3182 This variable encodes the prototype of getnetbyaddr_r.
3183 It is zero if d_getnetbyaddr_r is undef, and one of the
3184 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyaddr_r
3187 getnetbyname_r_proto (d_getnetbyname_r.U):
3188 This variable encodes the prototype of getnetbyname_r.
3189 It is zero if d_getnetbyname_r is undef, and one of the
3190 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyname_r
3193 getnetent_r_proto (d_getnetent_r.U):
3194 This variable encodes the prototype of getnetent_r.
3195 It is zero if d_getnetent_r is undef, and one of the
3196 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetent_r
3199 getprotobyname_r_proto (d_getprotobyname_r.U):
3200 This variable encodes the prototype of getprotobyname_r.
3201 It is zero if d_getprotobyname_r is undef, and one of the
3202 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobyname_r
3205 getprotobynumber_r_proto (d_getprotobynumber_r.U):
3206 This variable encodes the prototype of getprotobynumber_r.
3207 It is zero if d_getprotobynumber_r is undef, and one of the
3208 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobynumber_r
3211 getprotoent_r_proto (d_getprotoent_r.U):
3212 This variable encodes the prototype of getprotoent_r.
3213 It is zero if d_getprotoent_r is undef, and one of the
3214 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotoent_r
3217 getpwent_r_proto (d_getpwent_r.U):
3218 This variable encodes the prototype of getpwent_r.
3219 It is zero if d_getpwent_r is undef, and one of the
3220 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwent_r
3223 getpwnam_r_proto (d_getpwnam_r.U):
3224 This variable encodes the prototype of getpwnam_r.
3225 It is zero if d_getpwnam_r is undef, and one of the
3226 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwnam_r
3229 getpwuid_r_proto (d_getpwuid_r.U):
3230 This variable encodes the prototype of getpwuid_r.
3231 It is zero if d_getpwuid_r is undef, and one of the
3232 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwuid_r
3235 getservbyname_r_proto (d_getservbyname_r.U):
3236 This variable encodes the prototype of getservbyname_r.
3237 It is zero if d_getservbyname_r is undef, and one of the
3238 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyname_r
3241 getservbyport_r_proto (d_getservbyport_r.U):
3242 This variable encodes the prototype of getservbyport_r.
3243 It is zero if d_getservbyport_r is undef, and one of the
3244 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyport_r
3247 getservent_r_proto (d_getservent_r.U):
3248 This variable encodes the prototype of getservent_r.
3249 It is zero if d_getservent_r is undef, and one of the
3250 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservent_r
3253 getspnam_r_proto (d_getspnam_r.U):
3254 This variable encodes the prototype of getspnam_r.
3255 It is zero if d_getspnam_r is undef, and one of the
3256 REENTRANT_PROTO_T_ABC macros of reentr.h if d_getspnam_r
3260 This variable contains the format string used for printing a Gid_t.
3262 gidsign (gidsign.U):
3263 This variable contains the signedness of a gidtype.
3264 1 for unsigned, -1 for signed.
3266 gidsize (gidsize.U):
3267 This variable contains the size of a gidtype in bytes.
3269 gidtype (gidtype.U):
3270 This variable defines Gid_t to be something like gid_t, int,
3271 ushort, or whatever type is used to declare the return type
3272 of getgid(). Typically, it is the type of group ids in the kernel.
3275 This variable holds the general path (space-separated) used to
3276 find libraries. It may contain directories that do not exist on
3277 this platform, libpth is the cleaned-up version.
3280 This variable is used internally by Configure to determine the
3281 full pathname (if any) of the gmake program. After Configure runs,
3282 the value is reset to a plain "gmake" and is not useful.
3284 gmtime_r_proto (d_gmtime_r.U):
3285 This variable encodes the prototype of gmtime_r.
3286 It is zero if d_gmtime_r is undef, and one of the
3287 REENTRANT_PROTO_T_ABC macros of reentr.h if d_gmtime_r
3290 gnulibc_version (d_gnulibc.U):
3291 This variable contains the version number of the GNU C library.
3292 It is usually something like '2.2.5'. It is a plain '' if this
3293 is not the GNU C library, or if the version is unknown.
3296 This variable is used internally by Configure to determine the
3297 full pathname (if any) of the grep program. After Configure runs,
3298 the value is reset to a plain "grep" and is not useful.
3301 This variable contains a command that produces the text of the
3302 /etc/group file. This is normally "cat /etc/group", but can be
3303 "ypcat group" when NIS is used.
3304 On some systems, such as os390, there may be no equivalent
3305 command, in which case this variable is unset.
3307 groupstype (groupstype.U):
3308 This variable defines Groups_t to be something like gid_t, int,
3309 ushort, or whatever type is used for the second argument to
3310 getgroups() and setgroups(). Usually, this is the same as
3311 gidtype (gid_t), but sometimes it isn't.
3314 This variable is used internally by Configure to determine the
3315 full pathname (if any) of the gzip program. After Configure runs,
3316 the value is reset to a plain "gzip" and is not useful.
3318 h_fcntl (h_fcntl.U):
3319 This is variable gets set in various places to tell i_fcntl that
3320 <fcntl.h> should be included.
3322 h_sysfile (h_sysfile.U):
3323 This is variable gets set in various places to tell i_sys_file that
3324 <sys/file.h> should be included.
3327 Gives the type of hints used for previous answers. May be one of
3328 "default", "recommended" or "previous".
3331 This variable contains a command that produces the text of the
3332 /etc/hosts file. This is normally "cat /etc/hosts", but can be
3333 "ypcat hosts" when NIS is used.
3334 On some systems, such as os390, there may be no equivalent
3335 command, in which case this variable is unset.
3337 hostgenerate (Cross.U):
3338 This variable contains the path to a generate_uudmap binary that
3339 can be run on the host OS when cross-compiling. Useful and
3340 available only during Perl build.
3341 Empty string '' if not cross-compiling.
3343 hostosname (Cross.U):
3344 This variable contains the original value of '$^O' for hostperl
3345 when cross-compiling. This is useful to pick the proper tools
3346 when running build code in the host.
3347 Empty string '' if not cross-compiling.
3350 This variable contains the path to a miniperl binary that can be
3351 run on the host OS when cross-compiling. Useful and available only
3353 Empty string '' if not cross-compiling.
3355 html1dir (html1dir.U):
3356 This variable contains the name of the directory in which html
3357 source pages are to be put. This directory is for pages
3358 that describe whole programs, not libraries or modules. It
3359 is intended to correspond roughly to section 1 of the Unix
3362 html1direxp (html1dir.U):
3363 This variable is the same as the html1dir variable, but is filename
3364 expanded at configuration time, for convenient use in makefiles.
3366 html3dir (html3dir.U):
3367 This variable contains the name of the directory in which html
3368 source pages are to be put. This directory is for pages
3369 that describe libraries or modules. It is intended to
3370 correspond roughly to section 3 of the Unix manuals.
3372 html3direxp (html3dir.U):
3373 This variable is the same as the html3dir variable, but is filename
3374 expanded at configuration time, for convenient use in makefiles.
3377 This variable is the size of an I16 in bytes.
3380 This variable contains the C type used for Perl's I16.
3383 This variable is the size of an I32 in bytes.
3386 This variable contains the C type used for Perl's I32.
3389 This variable is the size of an I64 in bytes.
3392 This variable contains the C type used for Perl's I64.
3395 This variable is the size of an I8 in bytes.
3398 This variable contains the C type used for Perl's I8.
3400 i_arpainet (i_arpainet.U):
3401 This variable conditionally defines the I_ARPA_INET symbol,
3402 and indicates whether a C program should include <arpa/inet.h>.
3404 i_assert (i_assert.U):
3405 This variable conditionally defines the I_ASSERT symbol, which
3406 indicates to the C program that <assert.h> exists and could be
3410 This variable conditionally defines the I_BFD symbol, and
3411 indicates whether a C program can include <bfd.h>.
3413 i_bsdioctl (i_sysioctl.U):
3414 This variable conditionally defines the I_SYS_BSDIOCTL symbol, which
3415 indicates to the C program that <sys/bsdioctl.h> exists and should
3418 i_crypt (i_crypt.U):
3419 This variable conditionally defines the I_CRYPT symbol, and indicates
3420 whether a C program should include <crypt.h>.
3423 This variable conditionally defines the I_DB symbol, and indicates
3424 whether a C program may include Berkeley's DB include file <db.h>.
3427 This variable conditionally defines the I_DBM symbol, which
3428 indicates to the C program that <dbm.h> exists and should
3431 i_dirent (i_dirent.U):
3432 This variable conditionally defines I_DIRENT, which indicates
3433 to the C program that it should include <dirent.h>.
3435 i_dlfcn (i_dlfcn.U):
3436 This variable conditionally defines the I_DLFCN symbol, which
3437 indicates to the C program that <dlfcn.h> exists and should
3440 i_execinfo (i_execinfo.U):
3441 This variable conditionally defines the I_EXECINFO symbol, and indicates
3442 whether a C program may include <execinfo.h>, for backtrace() support.
3444 i_fcntl (i_fcntl.U):
3445 This variable controls the value of I_FCNTL (which tells
3446 the C program to include <fcntl.h>).
3449 This variable conditionally defines the I_FENV symbol, which
3450 indicates to the C program that <fenv.h> exists and should
3453 i_float (i_float.U):
3454 This variable conditionally defines the I_FLOAT symbol, and indicates
3455 whether a C program may include <float.h> to get symbols like DBL_MAX
3456 or DBL_MIN, i.e. machine dependent floating point values.
3459 This variable conditionally defines the I_FP symbol, and indicates
3460 whether a C program should include <fp.h>.
3462 i_fp_class (i_fp_class.U):
3463 This variable conditionally defines the I_FP_CLASS symbol, and indicates
3464 whether a C program should include <fp_class.h>.
3467 This variable conditionally defines the I_GDBM symbol, which
3468 indicates to the C program that <gdbm.h> exists and should
3471 i_gdbm_ndbm (i_ndbm.U):
3472 This variable conditionally defines the I_GDBM_NDBM symbol, which
3473 indicates to the C program that <gdbm-ndbm.h> exists and should
3474 be included. This is the location of the ndbm.h compatibility file
3477 i_gdbmndbm (i_ndbm.U):
3478 This variable conditionally defines the I_GDBMNDBM symbol, which
3479 indicates to the C program that <gdbm/ndbm.h> exists and should
3480 be included. This was the location of the ndbm.h compatibility file
3484 This variable conditionally defines the I_GRP symbol, and indicates
3485 whether a C program should include <grp.h>.
3487 i_ieeefp (i_ieeefp.U):
3488 This variable conditionally defines the I_IEEEFP symbol, and indicates
3489 whether a C program should include <ieeefp.h>.
3491 i_inttypes (i_inttypes.U):
3492 This variable conditionally defines the I_INTTYPES symbol,
3493 and indicates whether a C program should include <inttypes.h>.
3495 i_langinfo (i_langinfo.U):
3496 This variable conditionally defines the I_LANGINFO symbol,
3497 and indicates whether a C program should include <langinfo.h>.
3499 i_libutil (i_libutil.U):
3500 This variable conditionally defines the I_LIBUTIL symbol, and indicates
3501 whether a C program should include <libutil.h>.
3503 i_limits (i_limits.U):
3504 This variable conditionally defines the I_LIMITS symbol, and indicates
3505 whether a C program may include <limits.h> to get symbols like WORD_BIT
3508 i_locale (i_locale.U):
3509 This variable conditionally defines the I_LOCALE symbol,
3510 and indicates whether a C program should include <locale.h>.
3512 i_machcthr (i_machcthr.U):
3513 This variable conditionally defines the I_MACH_CTHREADS symbol,
3514 and indicates whether a C program should include <mach/cthreads.h>.
3516 i_malloc (i_malloc.U):
3517 This variable conditionally defines the I_MALLOC symbol, and indicates
3518 whether a C program should include <malloc.h>.
3520 i_mallocmalloc (i_mallocmalloc.U):
3521 This variable conditionally defines the I_MALLOCMALLOC symbol,
3522 and indicates whether a C program should include <malloc/malloc.h>.
3525 This variable conditionally defines the I_MATH symbol, and indicates
3526 whether a C program may include <math.h>.
3528 i_memory (i_memory.U):
3529 This variable conditionally defines the I_MEMORY symbol, and indicates
3530 whether a C program should include <memory.h>.
3532 i_mntent (i_mntent.U):
3533 This variable conditionally defines the I_MNTENT symbol, and indicates
3534 whether a C program should include <mntent.h>.
3537 This variable conditionally defines the I_NDBM symbol, which
3538 indicates to the C program that <ndbm.h> exists and should
3541 i_netdb (i_netdb.U):
3542 This variable conditionally defines the I_NETDB symbol, and indicates
3543 whether a C program should include <netdb.h>.
3545 i_neterrno (i_neterrno.U):
3546 This variable conditionally defines the I_NET_ERRNO symbol, which
3547 indicates to the C program that <net/errno.h> exists and should
3550 i_netinettcp (i_netinettcp.U):
3551 This variable conditionally defines the I_NETINET_TCP symbol,
3552 and indicates whether a C program should include <netinet/tcp.h>.
3555 This variable conditionally defines I_NETINET_IN, which indicates
3556 to the C program that it should include <netinet/in.h>. Otherwise,
3557 you may try <sys/in.h>.
3560 This variable conditionally defines the I_POLL symbol, and indicates
3561 whether a C program should include <poll.h>.
3564 This variable conditionally defines the I_PROT symbol, and indicates
3565 whether a C program should include <prot.h>.
3567 i_pthread (i_pthread.U):
3568 This variable conditionally defines the I_PTHREAD symbol,
3569 and indicates whether a C program should include <pthread.h>.
3572 This variable conditionally defines I_PWD, which indicates
3573 to the C program that it should include <pwd.h>.
3575 i_quadmath (i_quadmath.U):
3576 This variable conditionally defines I_QUADMATH, which indicates
3577 to the C program that it should include <quadmath.h>.
3579 i_rpcsvcdbm (i_dbm.U):
3580 This variable conditionally defines the I_RPCSVC_DBM symbol, which
3581 indicates to the C program that <rpcsvc/dbm.h> exists and should
3582 be included. Some System V systems might need this instead of <dbm.h>.
3584 i_sgtty (i_termio.U):
3585 This variable conditionally defines the I_SGTTY symbol, which
3586 indicates to the C program that it should include <sgtty.h> rather
3589 i_shadow (i_shadow.U):
3590 This variable conditionally defines the I_SHADOW symbol, and indicates
3591 whether a C program should include <shadow.h>.
3593 i_socks (i_socks.U):
3594 This variable conditionally defines the I_SOCKS symbol, and indicates
3595 whether a C program should include <socks.h>.
3597 i_stdarg (i_varhdr.U):
3598 This variable conditionally defines the I_STDARG symbol, which
3599 indicates to the C program that <stdarg.h> exists and should
3602 i_stdbool (i_stdbool.U):
3603 This variable conditionally defines the I_STDBOOL symbol, which
3604 indicates to the C program that <stdbool.h> exists and should
3607 i_stddef (i_stddef.U):
3608 This variable conditionally defines the I_STDDEF symbol, which
3609 indicates to the C program that <stddef.h> exists and should
3612 i_stdint (i_stdint.U):
3613 This variable conditionally defines the I_STDINT symbol, which
3614 indicates to the C program that <stdint.h> exists and should
3617 i_stdlib (i_stdlib.U):
3618 This variable conditionally defines the I_STDLIB symbol, which
3619 indicates to the C program that <stdlib.h> exists and should
3622 i_string (i_string.U):
3623 This variable conditionally defines the I_STRING symbol, which
3624 indicates that <string.h> should be included rather than <strings.h>.
3626 i_sunmath (i_sunmath.U):
3627 This variable conditionally defines the I_SUNMATH symbol, and indicates
3628 whether a C program should include <sunmath.h>.
3630 i_sysaccess (i_sysaccess.U):
3631 This variable conditionally defines the I_SYS_ACCESS symbol,
3632 and indicates whether a C program should include <sys/access.h>.
3634 i_sysdir (i_sysdir.U):
3635 This variable conditionally defines the I_SYS_DIR symbol, and indicates
3636 whether a C program should include <sys/dir.h>.
3638 i_sysfile (i_sysfile.U):
3639 This variable conditionally defines the I_SYS_FILE symbol, and indicates
3640 whether a C program should include <sys/file.h> to get R_OK and friends.
3642 i_sysfilio (i_sysioctl.U):
3643 This variable conditionally defines the I_SYS_FILIO symbol, which
3644 indicates to the C program that <sys/filio.h> exists and should
3645 be included in preference to <sys/ioctl.h>.
3648 This variable conditionally defines I_SYS_IN, which indicates
3649 to the C program that it should include <sys/in.h> instead of
3652 i_sysioctl (i_sysioctl.U):
3653 This variable conditionally defines the I_SYS_IOCTL symbol, which
3654 indicates to the C program that <sys/ioctl.h> exists and should
3657 i_syslog (i_syslog.U):
3658 This variable conditionally defines the I_SYSLOG symbol,
3659 and indicates whether a C program should include <syslog.h>.
3661 i_sysmman (i_sysmman.U):
3662 This variable conditionally defines the I_SYS_MMAN symbol, and
3663 indicates whether a C program should include <sys/mman.h>.
3665 i_sysmode (i_sysmode.U):
3666 This variable conditionally defines the I_SYSMODE symbol,
3667 and indicates whether a C program should include <sys/mode.h>.
3669 i_sysmount (i_sysmount.U):
3670 This variable conditionally defines the I_SYSMOUNT symbol,
3671 and indicates whether a C program should include <sys/mount.h>.
3673 i_sysndir (i_sysndir.U):
3674 This variable conditionally defines the I_SYS_NDIR symbol, and indicates
3675 whether a C program should include <sys/ndir.h>.
3677 i_sysparam (i_sysparam.U):
3678 This variable conditionally defines the I_SYS_PARAM symbol, and indicates
3679 whether a C program should include <sys/param.h>.
3681 i_syspoll (i_syspoll.U):
3682 This variable conditionally defines the I_SYS_POLL symbol, which
3683 indicates to the C program that it should include <sys/poll.h>.
3685 i_sysresrc (i_sysresrc.U):
3686 This variable conditionally defines the I_SYS_RESOURCE symbol,
3687 and indicates whether a C program should include <sys/resource.h>.
3689 i_syssecrt (i_syssecrt.U):
3690 This variable conditionally defines the I_SYS_SECURITY symbol,
3691 and indicates whether a C program should include <sys/security.h>.
3693 i_sysselct (i_sysselct.U):
3694 This variable conditionally defines I_SYS_SELECT, which indicates
3695 to the C program that it should include <sys/select.h> in order to
3696 get the definition of struct timeval.
3698 i_syssockio (i_sysioctl.U):
3699 This variable conditionally defines I_SYS_SOCKIO to indicate to the
3700 C program that socket ioctl codes may be found in <sys/sockio.h>
3701 instead of <sys/ioctl.h>.
3703 i_sysstat (i_sysstat.U):
3704 This variable conditionally defines the I_SYS_STAT symbol,
3705 and indicates whether a C program should include <sys/stat.h>.
3707 i_sysstatfs (i_sysstatfs.U):
3708 This variable conditionally defines the I_SYSSTATFS symbol,
3709 and indicates whether a C program should include <sys/statfs.h>.
3711 i_sysstatvfs (i_sysstatvfs.U):
3712 This variable conditionally defines the I_SYSSTATVFS symbol,
3713 and indicates whether a C program should include <sys/statvfs.h>.
3715 i_systime (i_time.U):
3716 This variable conditionally defines I_SYS_TIME, which indicates
3717 to the C program that it should include <sys/time.h>.
3719 i_systimek (i_time.U):
3720 This variable conditionally defines I_SYS_TIME_KERNEL, which
3721 indicates to the C program that it should include <sys/time.h>
3722 with KERNEL defined.
3724 i_systimes (i_systimes.U):
3725 This variable conditionally defines the I_SYS_TIMES symbol, and indicates
3726 whether a C program should include <sys/times.h>.
3728 i_systypes (i_systypes.U):
3729 This variable conditionally defines the I_SYS_TYPES symbol,
3730 and indicates whether a C program should include <sys/types.h>.
3732 i_sysuio (i_sysuio.U):
3733 This variable conditionally defines the I_SYSUIO symbol, and indicates
3734 whether a C program should include <sys/uio.h>.
3736 i_sysun (i_sysun.U):
3737 This variable conditionally defines I_SYS_UN, which indicates
3738 to the C program that it should include <sys/un.h> to get UNIX
3739 domain socket definitions.
3741 i_sysutsname (i_sysutsname.U):
3742 This variable conditionally defines the I_SYSUTSNAME symbol,
3743 and indicates whether a C program should include <sys/utsname.h>.
3745 i_sysvfs (i_sysvfs.U):
3746 This variable conditionally defines the I_SYSVFS symbol,
3747 and indicates whether a C program should include <sys/vfs.h>.
3749 i_syswait (i_syswait.U):
3750 This variable conditionally defines I_SYS_WAIT, which indicates
3751 to the C program that it should include <sys/wait.h>.
3753 i_termio (i_termio.U):
3754 This variable conditionally defines the I_TERMIO symbol, which
3755 indicates to the C program that it should include <termio.h> rather
3758 i_termios (i_termio.U):
3759 This variable conditionally defines the I_TERMIOS symbol, which
3760 indicates to the C program that the POSIX <termios.h> file is
3764 This variable conditionally defines I_TIME, which indicates
3765 to the C program that it should include <time.h>.
3767 i_unistd (i_unistd.U):
3768 This variable conditionally defines the I_UNISTD symbol, and indicates
3769 whether a C program should include <unistd.h>.
3771 i_ustat (i_ustat.U):
3772 This variable conditionally defines the I_USTAT symbol, and indicates
3773 whether a C program should include <ustat.h>.
3775 i_utime (i_utime.U):
3776 This variable conditionally defines the I_UTIME symbol, and indicates
3777 whether a C program should include <utime.h>.
3779 i_values (i_values.U):
3780 This variable conditionally defines the I_VALUES symbol, and indicates
3781 whether a C program may include <values.h> to get symbols like MAXLONG
3784 i_varargs (i_varhdr.U):
3785 This variable conditionally defines I_VARARGS, which indicates
3786 to the C program that it should include <varargs.h>.
3788 i_varhdr (i_varhdr.U):
3789 Contains the name of the header to be included to get va_dcl definition.
3790 Typically one of varargs.h or stdarg.h.
3792 i_vfork (i_vfork.U):
3793 This variable conditionally defines the I_VFORK symbol, and indicates
3794 whether a C program should include vfork.h.
3796 i_xlocale (d_newlocale.U):
3797 This symbol, if defined, indicates to the C program that it should
3798 include <xlocale.h> to get uselocale() and its friends
3800 ignore_versioned_solibs (libs.U):
3801 This variable should be non-empty if non-versioned shared
3802 libraries (libfoo.so.x.y) are to be ignored (because they
3803 cannot be linked against).
3805 inc_version_list (inc_version_list.U):
3806 This variable specifies the list of subdirectories in over
3807 which perl.c:incpush() and lib/lib.pm will automatically
3808 search when adding directories to @INC. The elements in
3809 the list are separated by spaces. This is only useful
3810 if you have a perl library directory tree structured like the
3811 default one. See INSTALL for how this works. The versioned
3812 site_perl directory was introduced in 5.005, so that is the
3813 lowest possible value.
3815 This list includes architecture-dependent directories back to
3816 version $api_versionstring (e.g. 5.5.640) and
3817 architecture-independent directories all the way back to
3820 inc_version_list_init (inc_version_list.U):
3821 This variable holds the same list as inc_version_list, but
3822 each item is enclosed in double quotes and separated by commas,
3823 suitable for use in the PERL_INC_VERSION_LIST initialization.
3826 This variable must precede the normal include path to get the
3827 right one, as in "$incpath/usr/include" or "$incpath/usr/lib".
3828 Value can be "" or "/bsd43" on mips.
3831 This variable must precede the normal include path to get the
3832 right one, as in "$incpath/usr/include" or "$incpath/usr/lib".
3833 Value can be "" or "/bsd43" on mips.
3836 This variable is defined but not used by Configure.
3837 The value is the empty string and is not useful.
3839 initialinstalllocation (bin.U):
3840 When userelocatableinc is true, this variable holds the location
3841 that make install should copy the perl binary to, with all the
3842 run-time relocatable paths calculated from this at install time.
3843 When used, it is initialized to the original value of binexp, and
3844 then binexp is set to '.../', as the other binaries are found
3845 relative to the perl binary.
3847 installarchlib (archlib.U):
3848 This variable is really the same as archlibexp but may differ on
3849 those systems using AFS. For extra portability, only this variable
3850 should be used in makefiles.
3853 This variable is the same as binexp unless AFS is running in which case
3854 the user is explicitly prompted for it. This variable should always
3855 be used in your makefiles for maximum portability.
3857 installhtml1dir (html1dir.U):
3858 This variable is really the same as html1direxp, unless you are
3859 using a different installprefix. For extra portability, you
3860 should only use this variable within your makefiles.
3862 installhtml3dir (html3dir.U):
3863 This variable is really the same as html3direxp, unless you are
3864 using a different installprefix. For extra portability, you
3865 should only use this variable within your makefiles.
3867 installman1dir (man1dir.U):
3868 This variable is really the same as man1direxp, unless you are using
3869 AFS in which case it points to the read/write location whereas
3870 man1direxp only points to the read-only access location. For extra
3871 portability, you should only use this variable within your makefiles.
3873 installman3dir (man3dir.U):
3874 This variable is really the same as man3direxp, unless you are using
3875 AFS in which case it points to the read/write location whereas
3876 man3direxp only points to the read-only access location. For extra
3877 portability, you should only use this variable within your makefiles.
3879 installprefix (installprefix.U):
3880 This variable holds the name of the directory below which
3881 "make install" will install the package. For most users, this
3882 is the same as prefix. However, it is useful for
3883 installing the software into a different (usually temporary)
3884 location after which it can be bundled up and moved somehow
3885 to the final location specified by prefix.
3887 installprefixexp (installprefix.U):
3888 This variable holds the full absolute path of installprefix
3889 with all ~-expansion done.
3891 installprivlib (privlib.U):
3892 This variable is really the same as privlibexp but may differ on
3893 those systems using AFS. For extra portability, only this variable
3894 should be used in makefiles.
3896 installscript (scriptdir.U):
3897 This variable is usually the same as scriptdirexp, unless you are on
3898 a system running AFS, in which case they may differ slightly. You
3899 should always use this variable within your makefiles for portability.
3901 installsitearch (sitearch.U):
3902 This variable is really the same as sitearchexp but may differ on
3903 those systems using AFS. For extra portability, only this variable
3904 should be used in makefiles.
3906 installsitebin (sitebin.U):
3907 This variable is usually the same as sitebinexp, unless you are on
3908 a system running AFS, in which case they may differ slightly. You
3909 should always use this variable within your makefiles for portability.
3911 installsitehtml1dir (sitehtml1dir.U):
3912 This variable is really the same as sitehtml1direxp, unless you are using
3913 AFS in which case it points to the read/write location whereas
3914 html1direxp only points to the read-only access location. For extra
3915 portability, you should only use this variable within your makefiles.
3917 installsitehtml3dir (sitehtml3dir.U):
3918 This variable is really the same as sitehtml3direxp, unless you are using
3919 AFS in which case it points to the read/write location whereas
3920 html3direxp only points to the read-only access location. For extra
3921 portability, you should only use this variable within your makefiles.
3923 installsitelib (sitelib.U):
3924 This variable is really the same as sitelibexp but may differ on
3925 those systems using AFS. For extra portability, only this variable
3926 should be used in makefiles.
3928 installsiteman1dir (siteman1dir.U):
3929 This variable is really the same as siteman1direxp, unless you are using
3930 AFS in which case it points to the read/write location whereas
3931 man1direxp only points to the read-only access location. For extra
3932 portability, you should only use this variable within your makefiles.
3934 installsiteman3dir (siteman3dir.U):
3935 This variable is really the same as siteman3direxp, unless you are using
3936 AFS in which case it points to the read/write location whereas
3937 man3direxp only points to the read-only access location. For extra
3938 portability, you should only use this variable within your makefiles.
3940 installsitescript (sitescript.U):
3941 This variable is usually the same as sitescriptexp, unless you are on
3942 a system running AFS, in which case they may differ slightly. You
3943 should always use this variable within your makefiles for portability.
3945 installstyle (installstyle.U):
3946 This variable describes the "style" of the perl installation.
3947 This is intended to be useful for tools that need to
3948 manipulate entire perl distributions. Perl itself doesn't use
3949 this to find its libraries -- the library directories are
3950 stored directly in Config.pm. Currently, there are only two
3951 styles: "lib" and "lib/perl5". The default library locations
3952 (e.g. privlib, sitelib) are either $prefix/lib or
3953 $prefix/lib/perl5. The former is useful if $prefix is a
3954 directory dedicated to perl (e.g. /opt/perl), while the latter
3955 is useful if $prefix is shared by many packages, e.g. if
3958 Unfortunately, while this "style" variable is used to set
3959 defaults for all three directory hierarchies (core, vendor, and
3960 site), there is no guarantee that the same style is actually
3961 appropriate for all those directories. For example, $prefix
3962 might be /opt/perl, but $siteprefix might be /usr/local.
3963 (Perhaps, in retrospect, the "lib" style should never have been
3964 supported, but it did seem like a nice idea at the time.)
3966 The situation is even less clear for tools such as MakeMaker
3967 that can be used to install additional modules into
3968 non-standard places. For example, if a user intends to install
3969 a module into a private directory (perhaps by setting PREFIX on
3970 the Makefile.PL command line), then there is no reason to
3971 assume that the Configure-time $installstyle setting will be
3972 relevant for that PREFIX.
3974 This may later be extended to include other information, so
3975 be careful with pattern-matching on the results.
3977 For compatibility with perl5.005 and earlier, the default
3978 setting is based on whether or not $prefix contains the string
3981 installusrbinperl (instubperl.U):
3982 This variable tells whether Perl should be installed also as
3983 /usr/bin/perl in addition to
3986 installvendorarch (vendorarch.U):
3987 This variable is really the same as vendorarchexp but may differ on
3988 those systems using AFS. For extra portability, only this variable
3989 should be used in makefiles.
3991 installvendorbin (vendorbin.U):
3992 This variable is really the same as vendorbinexp but may differ on
3993 those systems using AFS. For extra portability, only this variable
3994 should be used in makefiles.
3996 installvendorhtml1dir (vendorhtml1dir.U):
3997 This variable is really the same as vendorhtml1direxp but may differ on
3998 those systems using AFS. For extra portability, only this variable
3999 should be used in makefiles.
4001 installvendorhtml3dir (vendorhtml3dir.U):
4002 This variable is really the same as vendorhtml3direxp but may differ on
4003 those systems using AFS. For extra portability, only this variable
4004 should be used in makefiles.
4006 installvendorlib (vendorlib.U):
4007 This variable is really the same as vendorlibexp but may differ on
4008 those systems using AFS. For extra portability, only this variable
4009 should be used in makefiles.
4011 installvendorman1dir (vendorman1dir.U):
4012 This variable is really the same as vendorman1direxp but may differ on
4013 those systems using AFS. For extra portability, only this variable
4014 should be used in makefiles.
4016 installvendorman3dir (vendorman3dir.U):
4017 This variable is really the same as vendorman3direxp but may differ on
4018 those systems using AFS. For extra portability, only this variable
4019 should be used in makefiles.
4021 installvendorscript (vendorscript.U):
4022 This variable is really the same as vendorscriptexp but may differ on
4023 those systems using AFS. For extra portability, only this variable
4024 should be used in makefiles.
4026 intsize (intsize.U):
4027 This variable contains the value of the INTSIZE symbol, which
4028 indicates to the C program how many bytes there are in an int.
4030 issymlink (issymlink.U):
4031 This variable holds the test command to test for a symbolic link
4032 (if they are supported). Typical values include 'test -h' and
4035 ivdformat (perlxvf.U):
4036 This variable contains the format string used for printing
4037 a Perl IV as a signed decimal integer.
4040 This variable is the size of an IV in bytes.
4043 This variable contains the C type used for Perl's IV.
4045 known_extensions (Extensions.U):
4046 This variable holds a list of all extensions (both XS and non-xs)
4047 included in the package source distribution. This information is
4048 only really of use during the Perl build, as the list makes no
4049 distinction between extensions which were build and installed, and
4050 those which where not. See "extensions" for the list of extensions
4051 actually built and available.
4054 This variable is defined but not used by Configure.
4055 The value is the empty string and is not useful.
4058 This variable indicates the program to be used to link
4059 libraries for dynamic loading. On some systems, it is 'ld'.
4060 On ELF systems, it should be $cc. Mostly, we'll try to respect
4061 the hint file setting.
4063 ld_can_script (dlsrc.U):
4064 This variable shows if the loader accepts scripts in the form of
4065 -Wl,--version-script=ld.script. This is currently only supported
4066 for GNU ld on ELF in dynamic loading builds.
4068 lddlflags (dlsrc.U):
4069 This variable contains any special flags that might need to be
4070 passed to $ld to create a shared library suitable for dynamic
4071 loading. It is up to the makefile to use it. For hpux, it
4072 should be '-b'. For sunos 4.1, it is empty.
4074 ldflags (ccflags.U):
4075 This variable contains any additional C loader flags desired by
4076 the user. It is up to the Makefile to use this.
4078 ldflags_uselargefiles (uselfs.U):
4079 This variable contains the loader flags needed by large file builds
4080 and added to ldflags by hints files.
4082 ldlibpthname (libperl.U):
4083 This variable holds the name of the shared library
4084 search path, often LD_LIBRARY_PATH. To get an empty
4085 string, the hints file must set this to 'none'.
4088 This variable is used internally by Configure to determine the
4089 full pathname (if any) of the less program. After Configure runs,
4090 the value is reset to a plain "less" and is not useful.
4093 This is an old synonym for _a.
4096 This variable contains the location of the C library.
4098 libperl (libperl.U):
4099 The perl executable is obtained by linking perlmain.c with
4100 libperl, any static extensions (usually just DynaLoader),
4101 and any other libraries needed on this system. libperl
4102 is usually libperl.a, but can also be libperl.so.xxx if
4103 the user wishes to build a perl executable with a shared
4107 This variable holds the general path (space-separated) used to find
4108 libraries. It is intended to be used by other units.
4111 This variable holds the additional libraries we want to use.
4112 It is up to the Makefile to deal with it. The list can be empty.
4115 This variable holds the directory names aka dirnames of the libraries
4116 we found and accepted, duplicates are removed.
4119 This variable holds the filenames aka basenames of the libraries
4120 we found and accepted.
4123 This variable holds the full pathnames of the libraries
4124 we found and accepted.
4127 This variable holds the directory names probed for libraries.
4129 libswanted (Myinit.U):
4130 This variable holds a list of all the libraries we want to
4131 search. The order is chosen to pick up the c library
4132 ahead of ucb or bsd libraries for SVR4.
4134 libswanted_uselargefiles (uselfs.U):
4135 This variable contains the libraries needed by large file builds
4136 and added to ldflags by hints files. It is a space separated list
4137 of the library names without the "lib" prefix or any suffix, just
4141 This variable is defined but not used by Configure.
4142 The value is the empty string and is not useful.
4145 This variable is defined but not used by Configure.
4146 The value is the empty string and is not useful.
4148 lkflags (ccflags.U):
4149 This variable contains any additional C partial linker flags desired by
4150 the user. It is up to the Makefile to use this.
4153 This variable is used internally by Configure to determine the
4154 full pathname (if any) of the ln program. After Configure runs,
4155 the value is reset to a plain "ln" and is not useful.
4158 This variable holds the name of the command to make
4159 symbolic links (if they are supported). It can be used
4160 in the Makefile. It is either 'ln -s' or 'ln'
4162 localtime_r_proto (d_localtime_r.U):
4163 This variable encodes the prototype of localtime_r.
4164 It is zero if d_localtime_r is undef, and one of the
4165 REENTRANT_PROTO_T_ABC macros of reentr.h if d_localtime_r
4168 locincpth (ccflags.U):
4169 This variable contains a list of additional directories to be
4170 searched by the compiler. The appropriate '-I' directives will
4171 be added to ccflags. This is intended to simplify setting
4172 local directories from the Configure command line.
4173 It's not much, but it parallels the loclibpth stuff in libpth.U.
4175 loclibpth (libpth.U):
4176 This variable holds the paths (space-separated) used to find local
4177 libraries. It is prepended to libpth, and is intended to be easily
4178 set from the command line.
4180 longdblinfbytes (infnan.U):
4181 This variable contains comma-separated list of hexadecimal bytes
4182 for the long double precision infinity.
4184 longdblkind (d_longdbl.U):
4185 This variable, if defined, encodes the type of a long double:
4187 1 = IEEE 754 128-bit little endian,
4188 2 = IEEE 754 128-bit big endian,
4189 3 = x86 80-bit little endian,
4190 4 = x86 80-bit big endian,
4191 5 = double-double 128-bit little endian,
4192 6 = double-double 128-bit big endian,
4193 7 = 128-bit mixed-endian double-double (64-bit LEs in BE),
4194 8 = 128-bit mixed-endian double-double (64-bit BEs in LE),
4195 9 = 128-bit PDP-style mixed-endian long doubles,
4196 -1 = unknown format.
4198 longdblmantbits (mantbits.U):
4199 This symbol, if defined, tells how many mantissa bits
4200 there are in long double precision floating point format.
4201 Note that this can be LDBL_MANT_DIG minus one,
4202 since LDBL_MANT_DIG can include the IEEE 754 implicit bit.
4203 The common x86-style 80-bit long double does not have
4206 longdblnanbytes (infnan.U):
4207 This variable contains comma-separated list of hexadecimal bytes
4208 for the long double precision not-a-number.
4210 longdblsize (d_longdbl.U):
4211 This variable contains the value of the LONG_DOUBLESIZE symbol, which
4212 indicates to the C program how many bytes there are in a long double,
4213 if this system supports long doubles. Note that this is
4214 sizeof(long double), which may include unused bytes.
4216 longlongsize (d_longlong.U):
4217 This variable contains the value of the LONGLONGSIZE symbol, which
4218 indicates to the C program how many bytes there are in a long long,
4219 if this system supports long long.
4221 longsize (intsize.U):
4222 This variable contains the value of the LONGSIZE symbol, which
4223 indicates to the C program how many bytes there are in a long.
4226 This variable is defined but not used by Configure.
4227 The value is the empty string and is not useful.
4230 This variable is defined but not used by Configure.
4231 The value is the empty string and is not useful.
4234 This variable is used internally by Configure to determine the
4235 full pathname (if any) of the ls program. After Configure runs,
4236 the value is reset to a plain "ls" and is not useful.
4238 lseeksize (lseektype.U):
4239 This variable defines lseektype to be something like off_t, long,
4240 or whatever type is used to declare lseek offset's type in the
4241 kernel (which also appears to be lseek's return type).
4243 lseektype (lseektype.U):
4244 This variable defines lseektype to be something like off_t, long,
4245 or whatever type is used to declare lseek offset's type in the
4246 kernel (which also appears to be lseek's return type).
4249 This variable is defined but not used by Configure.
4250 The value is the empty string and is not useful.
4253 This variable is defined but not used by Configure.
4254 The value is the empty string and is not useful.
4257 This variable is used internally by Configure to determine the
4258 full pathname (if any) of the make program. After Configure runs,
4259 the value is reset to a plain "make" and is not useful.
4261 make_set_make (make.U):
4262 Some versions of 'make' set the variable MAKE. Others do not.
4263 This variable contains the string to be included in Makefile.SH
4264 so that MAKE is set if needed, and not if not needed.
4265 Possible values are:
4267 make_set_make='#' # If your make program handles this for you,
4269 make_set_make="MAKE=$make" # if it doesn't.
4271 This uses a comment character so that we can distinguish a
4272 'set' value (from a previous config.sh or Configure '-D' option)
4273 from an uncomputed value.
4275 mallocobj (mallocsrc.U):
4276 This variable contains the name of the malloc.o that this package
4277 generates, if that malloc.o is preferred over the system malloc.
4278 Otherwise the value is null. This variable is intended for generating
4279 Makefiles. See mallocsrc.
4281 mallocsrc (mallocsrc.U):
4282 This variable contains the name of the malloc.c that comes with
4283 the package, if that malloc.c is preferred over the system malloc.
4284 Otherwise the value is null. This variable is intended for generating
4287 malloctype (mallocsrc.U):
4288 This variable contains the kind of ptr returned by malloc and realloc.
4290 man1dir (man1dir.U):
4291 This variable contains the name of the directory in which manual
4292 source pages are to be put. It is the responsibility of the
4293 Makefile.SH to get the value of this into the proper command.
4294 You must be prepared to do the ~name expansion yourself.
4296 man1direxp (man1dir.U):
4297 This variable is the same as the man1dir variable, but is filename
4298 expanded at configuration time, for convenient use in makefiles.
4300 man1ext (man1dir.U):
4301 This variable contains the extension that the manual page should
4302 have: one of 'n', 'l', or '1'. The Makefile must supply the '.'.
4305 man3dir (man3dir.U):
4306 This variable contains the name of the directory in which manual
4307 source pages are to be put. It is the responsibility of the
4308 Makefile.SH to get the value of this into the proper command.
4309 You must be prepared to do the ~name expansion yourself.
4311 man3direxp (man3dir.U):
4312 This variable is the same as the man3dir variable, but is filename
4313 expanded at configuration time, for convenient use in makefiles.
4315 man3ext (man3dir.U):
4316 This variable contains the extension that the manual page should
4317 have: one of 'n', 'l', or '3'. The Makefile must supply the '.'.
4320 mips_type (usrinc.U):
4321 This variable holds the environment type for the mips system.
4322 Possible values are "BSD 4.3" and "System V".
4324 mistrustnm (Csym.U):
4325 This variable can be used to establish a fallthrough for the cases
4326 where nm fails to find a symbol. If usenm is false or usenm is true
4327 and mistrustnm is false, this variable has no effect. If usenm is true
4328 and mistrustnm is "compile", a test program will be compiled to try to
4329 find any symbol that can't be located via nm lookup. If mistrustnm is
4330 "run", the test program will be run as well as being compiled.
4333 This variable is used internally by Configure to determine the
4334 full pathname (if any) of the mkdir program. After Configure runs,
4335 the value is reset to a plain "mkdir" and is not useful.
4337 mmaptype (d_mmap.U):
4338 This symbol contains the type of pointer returned by mmap()
4339 (and simultaneously the type of the first argument).
4340 It can be 'void *' or 'caddr_t'.
4342 modetype (modetype.U):
4343 This variable defines modetype to be something like mode_t,
4344 int, unsigned short, or whatever type is used to declare file
4345 modes for system calls.
4348 This variable is used internally by Configure to determine the
4349 full pathname (if any) of the more program. After Configure runs,
4350 the value is reset to a plain "more" and is not useful.
4352 multiarch (multiarch.U):
4353 This variable conditionally defines the MULTIARCH symbol
4354 which signifies the presence of multiplatform files.
4355 This is normally set by hints files.
4358 This variable is defined but not used by Configure.
4359 The value is the empty string and is not useful.
4361 myarchname (archname.U):
4362 This variable holds the architecture name computed by Configure in
4363 a previous run. It is not intended to be perused by any user and
4364 should never be set in a hint file.
4366 mydomain (myhostname.U):
4367 This variable contains the eventual value of the MYDOMAIN symbol,
4368 which is the domain of the host the program is going to run on.
4369 The domain must be appended to myhostname to form a complete host name.
4370 The dot comes with mydomain, and need not be supplied by the program.
4372 myhostname (myhostname.U):
4373 This variable contains the eventual value of the MYHOSTNAME symbol,
4374 which is the name of the host the program is going to run on.
4375 The domain is not kept with hostname, but must be gotten from mydomain.
4376 The dot comes with mydomain, and need not be supplied by the program.
4378 myuname (Oldconfig.U):
4379 The output of 'uname -a' if available, otherwise the hostname.
4380 The whole thing is then lower-cased and slashes and single quotes are
4384 This variable contains the '-n' flag if that is what causes the echo
4385 command to suppress newline. Otherwise it is null. Correct usage is
4386 $echo $n "prompt for a question: $c".
4388 need_va_copy (need_va_copy.U):
4389 This symbol, if defined, indicates that the system stores
4390 the variable argument list datatype, va_list, in a format
4391 that cannot be copied by simple assignment, so that some
4392 other means must be used when copying is required.
4393 As such systems vary in their provision (or non-provision)
4394 of copying mechanisms, handy.h defines a platform-
4395 independent macro, Perl_va_copy(src, dst), to do the job.
4397 netdb_hlen_type (netdbtype.U):
4398 This variable holds the type used for the 2nd argument to
4399 gethostbyaddr(). Usually, this is int or size_t or unsigned.
4400 This is only useful if you have gethostbyaddr(), naturally.
4402 netdb_host_type (netdbtype.U):
4403 This variable holds the type used for the 1st argument to
4404 gethostbyaddr(). Usually, this is char * or void *, possibly
4405 with or without a const prefix.
4406 This is only useful if you have gethostbyaddr(), naturally.
4408 netdb_name_type (netdbtype.U):
4409 This variable holds the type used for the argument to
4410 gethostbyname(). Usually, this is char * or const char *.
4411 This is only useful if you have gethostbyname(), naturally.
4413 netdb_net_type (netdbtype.U):
4414 This variable holds the type used for the 1st argument to
4415 getnetbyaddr(). Usually, this is int or long.
4416 This is only useful if you have getnetbyaddr(), naturally.
4419 This variable is used internally by Configure to determine the
4420 full pathname (if any) of the nm program. After Configure runs,
4421 the value is reset to a plain "nm" and is not useful.
4424 This variable holds the options that may be necessary for nm.
4426 nm_so_opt (usenm.U):
4427 This variable holds the options that may be necessary for nm
4428 to work on a shared library but that can not be used on an
4429 archive library. Currently, this is only used by Linux, where
4430 nm --dynamic is *required* to get symbols from an ELF library which
4431 has been stripped, but nm --dynamic is *fatal* on an archive library.
4432 Maybe Linux should just always set usenm=false.
4434 nonxs_ext (Extensions.U):
4435 This variable holds a list of all non-xs extensions built and
4436 installed by the package. By default, all non-xs extensions
4437 distributed will be built, with the exception of platform-specific
4438 extensions (currently only one VMS specific extension).
4441 This variable is used internally by Configure to determine the
4442 full pathname (if any) of the nroff program. After Configure runs,
4443 the value is reset to a plain "nroff" and is not useful.
4445 nv_overflows_integers_at (perlxv.U):
4446 This variable gives the largest integer value that NVs can hold
4447 as a constant floating point expression.
4448 If it could not be determined, it holds the value 0.
4450 nv_preserves_uv_bits (perlxv.U):
4451 This variable indicates how many of bits type uvtype
4452 a variable nvtype can preserve.
4454 nveformat (perlxvf.U):
4455 This variable contains the format string used for printing
4456 a Perl NV using %e-ish floating point format.
4458 nvEUformat (perlxvf.U):
4459 This variable contains the format string used for printing
4460 a Perl NV using %E-ish floating point format.
4462 nvfformat (perlxvf.U):
4463 This variable contains the format string used for printing
4464 a Perl NV using %f-ish floating point format.
4466 nvFUformat (perlxvf.U):
4467 This variable contains the format string used for printing
4468 a Perl NV using %F-ish floating point format.
4470 nvgformat (perlxvf.U):
4471 This variable contains the format string used for printing
4472 a Perl NV using %g-ish floating point format.
4474 nvGUformat (perlxvf.U):
4475 This variable contains the format string used for printing
4476 a Perl NV using %G-ish floating point format.
4478 nvmantbits (mantbits.U):
4479 This variable tells how many bits the mantissa of a Perl NV has,
4480 not including the possible implicit bit.
4483 This variable is the size of a Perl NV in bytes.
4484 Note that some floating point formats have unused bytes.
4487 This variable contains the C type used for Perl's NV.
4489 o_nonblock (nblock_io.U):
4490 This variable bears the symbol value to be used during open() or fcntl()
4491 to turn on non-blocking I/O for a file descriptor. If you wish to switch
4492 between blocking and non-blocking, you may try ioctl(FIOSNBIO) instead,
4493 but that is only supported by some devices.
4496 This is an old synonym for _o.
4498 old_pthread_create_joinable (d_pthrattrj.U):
4499 This variable defines the constant to use for creating joinable
4500 (aka undetached) pthreads. Unused if pthread.h defines
4501 PTHREAD_CREATE_JOINABLE. If used, possible values are
4502 PTHREAD_CREATE_UNDETACHED and __UNDETACHED.
4504 optimize (ccflags.U):
4505 This variable contains any optimizer/debugger flag that should be used.
4506 It is up to the Makefile to use it.
4508 orderlib (orderlib.U):
4509 This variable is "true" if the components of libraries must be ordered
4510 (with `lorder $* | tsort`) before placing them in an archive. Set to
4511 "false" if ranlib or ar can generate random libraries.
4513 osname (Oldconfig.U):
4514 This variable contains the operating system name (e.g. sunos,
4515 solaris, hpux, etc.). It can be useful later on for setting
4516 defaults. Any spaces are replaced with underscores. It is set
4517 to a null string if we can't figure it out.
4519 osvers (Oldconfig.U):
4520 This variable contains the operating system version (e.g.
4521 4.1.3, 5.2, etc.). It is primarily used for helping select
4522 an appropriate hints file, but might be useful elsewhere for
4523 setting defaults. It is set to '' if we can't figure it out.
4524 We try to be flexible about how much of the version number
4525 to keep, e.g. if 4.1.1, 4.1.2, and 4.1.3 are essentially the
4526 same for this package, hints files might just be os_4.0 or
4527 os_4.1, etc., not keeping separate files for each little release.
4529 otherlibdirs (otherlibdirs.U):
4530 This variable contains a colon-separated set of paths for the perl
4531 binary to search for additional library files or modules.
4532 These directories will be tacked to the end of @INC.
4533 Perl will automatically search below each path for version-
4534 and architecture-specific directories. See inc_version_list
4536 A value of ' ' means 'none' and is used to preserve this value
4537 for the next run through Configure.
4539 package (package.U):
4540 This variable contains the name of the package being constructed.
4541 It is primarily intended for the use of later Configure units.
4544 This variable contains the name of the preferred pager on the system.
4545 Usual values are (the full pathnames of) more, less, pg, or cat.
4548 This variable contains a command that produces the text of the
4549 /etc/passwd file. This is normally "cat /etc/passwd", but can be
4550 "ypcat passwd" when NIS is used.
4551 On some systems, such as os390, there may be no equivalent
4552 command, in which case this variable is unset.
4554 patchlevel (patchlevel.U):
4555 The patchlevel level of this package.
4556 The value of patchlevel comes from the patchlevel.h file.
4557 In a version number such as 5.6.1, this is the "6".
4558 In patchlevel.h, this is referred to as "PERL_VERSION".
4561 This is an old synonym for p_ in Head.U, the character
4562 used to separate elements in the command shell search PATH.
4565 This variable is used internally by Configure to determine the
4566 full pathname (if any) of the perl program. After Configure runs,
4567 the value is reset to a plain "perl" and is not useful.
4570 This variable contains the full path (if any) to a previously
4571 installed perl5.005 or later suitable for running the script
4572 to determine inc_version_list.
4574 PERL_API_REVISION (patchlevel.h):
4575 This number describes the earliest compatible PERL_REVISION of
4576 Perl ("compatibility" here being defined as sufficient binary/API
4577 compatibility to run XS code built with the older version).
4578 Normally this does not change across maintenance releases.
4579 Please read the comment in patchlevel.h.
4581 PERL_API_SUBVERSION (patchlevel.h):
4582 This number describes the earliest compatible PERL_SUBVERSION of
4583 Perl ("compatibility" here being defined as sufficient binary/API
4584 compatibility to run XS code built with the older version).
4585 Normally this does not change across maintenance releases.
4586 Please read the comment in patchlevel.h.
4588 PERL_API_VERSION (patchlevel.h):
4589 This number describes the earliest compatible PERL_VERSION of
4590 Perl ("compatibility" here being defined as sufficient binary/API
4591 compatibility to run XS code built with the older version).
4592 Normally this does not change across maintenance releases.
4593 Please read the comment in patchlevel.h.
4595 PERL_CONFIG_SH (Oldsyms.U):
4596 This is set to 'true' in config.sh so that a shell script
4597 sourcing config.sh can tell if it has been sourced already.
4599 PERL_PATCHLEVEL (Oldsyms.U):
4600 This symbol reflects the patchlevel, if available. Will usually
4601 come from the .patch file, which is available when the perl
4602 source tree was fetched with rsync.
4604 perl_patchlevel (patchlevel.U):
4605 This is the Perl patch level, a numeric change identifier,
4606 as defined by whichever source code maintenance system
4607 is used to maintain the patches; currently Perforce.
4608 It does not correlate with the Perl version numbers or
4609 the maintenance versus development dichotomy except
4610 by also being increasing.
4612 PERL_REVISION (Oldsyms.U):
4613 In a Perl version number such as 5.6.2, this is the 5.
4614 This value is manually set in patchlevel.h
4616 perl_static_inline (d_static_inline.U):
4617 This variable defines the PERL_STATIC_INLINE symbol to
4618 the best-guess incantation to use for static inline functions.
4619 Possibilities include
4621 static __inline__ (gcc -ansi)
4622 static __inline (MSVC)
4623 static _inline (older MSVC)
4624 static (c89 compilers)
4626 PERL_SUBVERSION (Oldsyms.U):
4627 In a Perl version number such as 5.6.2, this is the 2.
4628 Values greater than 50 represent potentially unstable
4629 development subversions.
4630 This value is manually set in patchlevel.h
4632 PERL_VERSION (Oldsyms.U):
4633 In a Perl version number such as 5.6.2, this is the 6.
4634 This value is manually set in patchlevel.h
4636 perladmin (perladmin.U):
4637 Electronic mail address of the perl5 administrator.
4640 The list of libraries needed by Perl only (any libraries needed
4641 by extensions only will by dropped, if using dynamic loading).
4643 perlpath (perlpath.U):
4644 This variable contains the eventual value of the PERLPATH symbol,
4645 which contains the name of the perl interpreter to be used in
4646 shell scripts and in the "eval 'exec'" idiom. This variable is
4647 not necessarily the pathname of the file containing the perl
4648 interpreter; you must append the executable extension (_exe) if
4649 it is not already present. Note that Perl code that runs during
4650 the Perl build process cannot reference this variable, as Perl
4651 may not have been installed, or even if installed, may be a
4652 different version of Perl.
4655 This variable is used internally by Configure to determine the
4656 full pathname (if any) of the pg program. After Configure runs,
4657 the value is reset to a plain "pg" and is not useful.
4659 phostname (myhostname.U):
4660 This variable contains the eventual value of the PHOSTNAME symbol,
4661 which is a command that can be fed to popen() to get the host name.
4662 The program should probably not presume that the domain is or isn't
4665 pidtype (pidtype.U):
4666 This variable defines PIDTYPE to be something like pid_t, int,
4667 ushort, or whatever type is used to declare process ids in the kernel.
4670 Holds the private path used by Configure to find out the libraries.
4671 Its value is prepend to libpth. This variable takes care of special
4672 machines, like the mips. Usually, it should be empty.
4675 This variable is defined but not used by Configure.
4676 The value is the empty string and is not useful.
4679 This variable is defined but not used by Configure.
4680 The value is the empty string and is not useful.
4683 This variable holds the name of the directory below which the
4684 user will install the package. Usually, this is /usr/local, and
4685 executables go in /usr/local/bin, library stuff in /usr/local/lib,
4686 man pages in /usr/local/man, etc. It is only used to set defaults
4687 for things in bin.U, mansrc.U, privlib.U, or scriptdir.U.
4689 prefixexp (prefix.U):
4690 This variable holds the full absolute path of the directory below
4691 which the user will install the package. Derived from prefix.
4693 privlib (privlib.U):
4694 This variable contains the eventual value of the PRIVLIB symbol,
4695 which is the name of the private library for this package. It may
4696 have a ~ on the front. It is up to the makefile to eventually create
4697 this directory while performing installation (with ~ substitution).
4699 privlibexp (privlib.U):
4700 This variable is the ~name expanded version of privlib, so that you
4701 may use it directly in Makefiles or shell scripts.
4703 procselfexe (d_procselfexe.U):
4704 If d_procselfexe is defined, $procselfexe is the filename
4705 of the symbolic link pointing to the absolute pathname of
4706 the executing program.
4708 prototype (prototype.U):
4709 This variable holds the eventual value of CAN_PROTOTYPE, which
4710 indicates the C compiler can handle function prototypes.
4712 ptrsize (ptrsize.U):
4713 This variable contains the value of the PTRSIZE symbol, which
4714 indicates to the C program how many bytes there are in a pointer.
4716 quadkind (quadtype.U):
4717 This variable, if defined, encodes the type of a quad:
4718 1 = int, 2 = long, 3 = long long, 4 = int64_t.
4720 quadtype (quadtype.U):
4721 This variable defines Quad_t to be something like long, int,
4722 long long, int64_t, or whatever type is used for 64-bit integers.
4724 randbits (randfunc.U):
4725 Indicates how many bits are produced by the function used to
4726 generate normalized random numbers.
4728 randfunc (randfunc.U):
4729 Indicates the name of the random number function to use.
4730 Values include drand48, random, and rand. In C programs,
4731 the 'Drand01' macro is defined to generate uniformly distributed
4732 random numbers over the range [0., 1.[ (see drand01 and nrand).
4734 random_r_proto (d_random_r.U):
4735 This variable encodes the prototype of random_r.
4736 It is zero if d_random_r is undef, and one of the
4737 REENTRANT_PROTO_T_ABC macros of reentr.h if d_random_r
4740 randseedtype (randfunc.U):
4741 Indicates the type of the argument of the seedfunc.
4743 ranlib (orderlib.U):
4744 This variable is set to the pathname of the ranlib program, if it is
4745 needed to generate random libraries. Set to ":" if ar can generate
4746 random libraries or if random libraries are not supported
4748 rd_nodata (nblock_io.U):
4749 This variable holds the return code from read() when no data is
4750 present. It should be -1, but some systems return 0 when O_NDELAY is
4751 used, which is a shame because you cannot make the difference between
4752 no data and an EOF.. Sigh!
4754 readdir64_r_proto (d_readdir64_r.U):
4755 This variable encodes the prototype of readdir64_r.
4756 It is zero if d_readdir64_r is undef, and one of the
4757 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir64_r
4760 readdir_r_proto (d_readdir_r.U):
4761 This variable encodes the prototype of readdir_r.
4762 It is zero if d_readdir_r is undef, and one of the
4763 REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir_r
4766 revision (patchlevel.U):
4767 The value of revision comes from the patchlevel.h file.
4768 In a version number such as 5.6.1, this is the "5".
4769 In patchlevel.h, this is referred to as "PERL_REVISION".
4772 This variable is used internally by Configure to determine the
4773 full pathname (if any) of the rm program. After Configure runs,
4774 the value is reset to a plain "rm" and is not useful.
4777 This is a cleanup variable for try test programs.
4778 Internal Configure use only.
4781 This variable is defined but not used by Configure.
4782 The value is the empty string and is not useful.
4785 This variable contains the command used by Configure
4786 to copy and execute a cross-compiled executable in the
4787 target host. Useful and available only during Perl build.
4788 Empty string '' if not cross-compiling.
4791 This variable contains 'true' or 'false' depending whether the
4792 nm extraction should be performed or not, according to the value
4793 of usenm and the flags on the Configure command line.
4795 sched_yield (d_pthread_y.U):
4796 This variable defines the way to yield the execution
4797 of the current thread.
4799 scriptdir (scriptdir.U):
4800 This variable holds the name of the directory in which the user wants
4801 to put publicly scripts for the package in question. It is either
4802 the same directory as for binaries, or a special one that can be
4803 mounted across different architectures, like /usr/share. Programs
4804 must be prepared to deal with ~name expansion.
4806 scriptdirexp (scriptdir.U):
4807 This variable is the same as scriptdir, but is filename expanded
4808 at configuration time, for programs not wanting to bother with it.
4811 This variable is used internally by Configure to determine the
4812 full pathname (if any) of the sed program. After Configure runs,
4813 the value is reset to a plain "sed" and is not useful.
4815 seedfunc (randfunc.U):
4816 Indicates the random number generating seed function.
4817 Values include srand48, srandom, and srand.
4819 selectminbits (selectminbits.U):
4820 This variable holds the minimum number of bits operated by select.
4821 That is, if you do select(n, ...), how many bits at least will be
4822 cleared in the masks if some activity is detected. Usually this
4823 is either n or 32*ceil(n/32), especially many little-endians do
4824 the latter. This is only useful if you have select(), naturally.
4826 selecttype (selecttype.U):
4827 This variable holds the type used for the 2nd, 3rd, and 4th
4828 arguments to select. Usually, this is 'fd_set *', if HAS_FD_SET
4829 is defined, and 'int *' otherwise. This is only useful if you
4830 have select(), naturally.
4833 This variable is defined but not used by Configure.
4834 The value is the empty string and is not useful.
4836 setgrent_r_proto (d_setgrent_r.U):
4837 This variable encodes the prototype of setgrent_r.
4838 It is zero if d_setgrent_r is undef, and one of the
4839 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setgrent_r
4842 sethostent_r_proto (d_sethostent_r.U):
4843 This variable encodes the prototype of sethostent_r.
4844 It is zero if d_sethostent_r is undef, and one of the
4845 REENTRANT_PROTO_T_ABC macros of reentr.h if d_sethostent_r
4848 setlocale_r_proto (d_setlocale_r.U):
4849 This variable encodes the prototype of setlocale_r.
4850 It is zero if d_setlocale_r is undef, and one of the
4851 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setlocale_r
4854 setnetent_r_proto (d_setnetent_r.U):
4855 This variable encodes the prototype of setnetent_r.
4856 It is zero if d_setnetent_r is undef, and one of the
4857 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setnetent_r
4860 setprotoent_r_proto (d_setprotoent_r.U):
4861 This variable encodes the prototype of setprotoent_r.
4862 It is zero if d_setprotoent_r is undef, and one of the
4863 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setprotoent_r
4866 setpwent_r_proto (d_setpwent_r.U):
4867 This variable encodes the prototype of setpwent_r.
4868 It is zero if d_setpwent_r is undef, and one of the
4869 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setpwent_r
4872 setservent_r_proto (d_setservent_r.U):
4873 This variable encodes the prototype of setservent_r.
4874 It is zero if d_setservent_r is undef, and one of the
4875 REENTRANT_PROTO_T_ABC macros of reentr.h if d_setservent_r
4878 sGMTIME_max (time_size.U):
4879 This variable defines the maximum value of the time_t offset that
4880 the system function gmtime () accepts
4882 sGMTIME_min (time_size.U):
4883 This variable defines the minimum value of the time_t offset that
4884 the system function gmtime () accepts
4887 This variable contains the full pathname of the shell used
4888 on this system to execute Bourne shell scripts. Usually, this will be
4889 /bin/sh, though it's possible that some systems will have /bin/ksh,
4890 /bin/pdksh, /bin/ash, /bin/bash, or even something such as
4892 This unit comes before Options.U, so you can't set sh with a '-D'
4893 option, though you can override this (and startsh)
4894 with '-O -Dsh=/bin/whatever -Dstartsh=whatever'
4897 This variable is defined but not used by Configure.
4898 The value is the empty string and is not useful.
4900 sharpbang (spitshell.U):
4901 This variable contains the string #! if this system supports that
4904 shmattype (d_shmat.U):
4905 This symbol contains the type of pointer returned by shmat().
4906 It can be 'void *' or 'char *'.
4908 shortsize (intsize.U):
4909 This variable contains the value of the SHORTSIZE symbol which
4910 indicates to the C program how many bytes there are in a short.
4912 shrpenv (libperl.U):
4913 If the user builds a shared libperl.so, then we need to tell the
4914 'perl' executable where it will be able to find the installed libperl.so.
4915 One way to do this on some systems is to set the environment variable
4916 LD_RUN_PATH to the directory that will be the final location of the
4917 shared libperl.so. The makefile can use this with something like
4918 $shrpenv $(CC) -o perl perlmain.o $libperl $libs
4920 shrpenv="env LD_RUN_PATH=$archlibexp/CORE"
4923 See the main perl Makefile.SH for actual working usage.
4924 Alternatively, we might be able to use a command line option such
4925 as -R $archlibexp/CORE (Solaris) or -Wl,-rpath
4926 $archlibexp/CORE (Linux).
4928 shsharp (spitshell.U):
4929 This variable tells further Configure units whether your sh can
4932 sig_count (sig_name.U):
4933 This variable holds a number larger than the largest valid
4934 signal number. This is usually the same as the NSIG macro.
4936 sig_name (sig_name.U):
4937 This variable holds the signal names, space separated. The leading
4938 SIG in signal name is removed. A ZERO is prepended to the list.
4939 This is currently not used, sig_name_init is used instead.
4941 sig_name_init (sig_name.U):
4942 This variable holds the signal names, enclosed in double quotes and
4943 separated by commas, suitable for use in the SIG_NAME definition
4944 below. A "ZERO" is prepended to the list, and the list is
4945 terminated with a plain 0. The leading SIG in signal names
4946 is removed. See sig_num.
4948 sig_num (sig_name.U):
4949 This variable holds the signal numbers, space separated. A ZERO is
4950 prepended to the list (corresponding to the fake SIGZERO).
4951 Those numbers correspond to the value of the signal listed
4952 in the same place within the sig_name list.
4953 This is currently not used, sig_num_init is used instead.
4955 sig_num_init (sig_name.U):
4956 This variable holds the signal numbers, enclosed in double quotes and
4957 separated by commas, suitable for use in the SIG_NUM definition
4958 below. A "ZERO" is prepended to the list, and the list is
4959 terminated with a plain 0.
4961 sig_size (sig_name.U):
4962 This variable contains the number of elements of the sig_name
4965 signal_t (d_voidsig.U):
4966 This variable holds the type of the signal handler (void or int).
4968 sitearch (sitearch.U):
4969 This variable contains the eventual value of the SITEARCH symbol,
4970 which is the name of the private library for this package. It may
4971 have a ~ on the front. It is up to the makefile to eventually create
4972 this directory while performing installation (with ~ substitution).
4973 The standard distribution will put nothing in this directory.
4974 After perl has been installed, users may install their own local
4975 architecture-dependent modules in this directory with
4976 MakeMaker Makefile.PL
4977 or equivalent. See INSTALL for details.
4979 sitearchexp (sitearch.U):
4980 This variable is the ~name expanded version of sitearch, so that you
4981 may use it directly in Makefiles or shell scripts.
4983 sitebin (sitebin.U):
4984 This variable holds the name of the directory in which the user wants
4985 to put add-on publicly executable files for the package in question. It
4986 is most often a local directory such as /usr/local/bin. Programs using
4987 this variable must be prepared to deal with ~name substitution.
4988 The standard distribution will put nothing in this directory.
4989 After perl has been installed, users may install their own local
4990 executables in this directory with
4991 MakeMaker Makefile.PL
4992 or equivalent. See INSTALL for details.
4994 sitebinexp (sitebin.U):
4995 This is the same as the sitebin variable, but is filename expanded at
4996 configuration time, for use in your makefiles.
4998 sitehtml1dir (sitehtml1dir.U):
4999 This variable contains the name of the directory in which site-specific
5000 html source pages are to be put. It is the responsibility of the
5001 Makefile.SH to get the value of this into the proper command.
5002 You must be prepared to do the ~name expansion yourself.
5003 The standard distribution will put nothing in this directory.
5004 After perl has been installed, users may install their own local
5005 html pages in this directory with
5006 MakeMaker Makefile.PL
5007 or equivalent. See INSTALL for details.
5009 sitehtml1direxp (sitehtml1dir.U):
5010 This variable is the same as the sitehtml1dir variable, but is filename
5011 expanded at configuration time, for convenient use in makefiles.
5013 sitehtml3dir (sitehtml3dir.U):
5014 This variable contains the name of the directory in which site-specific
5015 library html source pages are to be put. It is the responsibility of the
5016 Makefile.SH to get the value of this into the proper command.
5017 You must be prepared to do the ~name expansion yourself.
5018 The standard distribution will put nothing in this directory.
5019 After perl has been installed, users may install their own local
5020 library html pages in this directory with
5021 MakeMaker Makefile.PL
5022 or equivalent. See INSTALL for details.
5024 sitehtml3direxp (sitehtml3dir.U):
5025 This variable is the same as the sitehtml3dir variable, but is filename
5026 expanded at configuration time, for convenient use in makefiles.
5028 sitelib (sitelib.U):
5029 This variable contains the eventual value of the SITELIB symbol,
5030 which is the name of the private library for this package. It may
5031 have a ~ on the front. It is up to the makefile to eventually create
5032 this directory while performing installation (with ~ substitution).
5033 The standard distribution will put nothing in this directory.
5034 After perl has been installed, users may install their own local
5035 architecture-independent modules in this directory with
5036 MakeMaker Makefile.PL
5037 or equivalent. See INSTALL for details.
5039 sitelib_stem (sitelib.U):
5040 This variable is $sitelibexp with any trailing version-specific component
5041 removed. The elements in inc_version_list (inc_version_list.U) can
5042 be tacked onto this variable to generate a list of directories to search.
5044 sitelibexp (sitelib.U):
5045 This variable is the ~name expanded version of sitelib, so that you
5046 may use it directly in Makefiles or shell scripts.
5048 siteman1dir (siteman1dir.U):
5049 This variable contains the name of the directory in which site-specific
5050 manual source pages are to be put. It is the responsibility of the
5051 Makefile.SH to get the value of this into the proper command.
5052 You must be prepared to do the ~name expansion yourself.
5053 The standard distribution will put nothing in this directory.
5054 After perl has been installed, users may install their own local
5055 man1 pages in this directory with
5056 MakeMaker Makefile.PL
5057 or equivalent. See INSTALL for details.
5059 siteman1direxp (siteman1dir.U):
5060 This variable is the same as the siteman1dir variable, but is filename
5061 expanded at configuration time, for convenient use in makefiles.
5063 siteman3dir (siteman3dir.U):
5064 This variable contains the name of the directory in which site-specific
5065 library man source pages are to be put. It is the responsibility of the
5066 Makefile.SH to get the value of this into the proper command.
5067 You must be prepared to do the ~name expansion yourself.
5068 The standard distribution will put nothing in this directory.
5069 After perl has been installed, users may install their own local
5070 man3 pages in this directory with
5071 MakeMaker Makefile.PL
5072 or equivalent. See INSTALL for details.
5074 siteman3direxp (siteman3dir.U):
5075 This variable is the same as the siteman3dir variable, but is filename
5076 expanded at configuration time, for convenient use in makefiles.
5078 siteprefix (siteprefix.U):
5079 This variable holds the full absolute path of the directory below
5080 which the user will install add-on packages.
5081 See INSTALL for usage and examples.
5083 siteprefixexp (siteprefix.U):
5084 This variable holds the full absolute path of the directory below
5085 which the user will install add-on packages. Derived from siteprefix.
5087 sitescript (sitescript.U):
5088 This variable holds the name of the directory in which the user wants
5089 to put add-on publicly executable files for the package in question. It
5090 is most often a local directory such as /usr/local/bin. Programs using
5091 this variable must be prepared to deal with ~name substitution.
5092 The standard distribution will put nothing in this directory.
5093 After perl has been installed, users may install their own local
5094 scripts in this directory with
5095 MakeMaker Makefile.PL
5096 or equivalent. See INSTALL for details.
5098 sitescriptexp (sitescript.U):
5099 This is the same as the sitescript variable, but is filename expanded at
5100 configuration time, for use in your makefiles.
5102 sizesize (sizesize.U):
5103 This variable contains the size of a sizetype in bytes.
5105 sizetype (sizetype.U):
5106 This variable defines sizetype to be something like size_t,
5107 unsigned long, or whatever type is used to declare length
5108 parameters for string functions.
5111 This variable is defined but not used by Configure.
5112 The value is the empty string and is not useful.
5114 sLOCALTIME_max (time_size.U):
5115 This variable defines the maximum value of the time_t offset that
5116 the system function localtime () accepts
5118 sLOCALTIME_min (time_size.U):
5119 This variable defines the minimum value of the time_t offset that
5120 the system function localtime () accepts
5123 This variable is defined but not used by Configure.
5124 The value is the empty string and is not useful.
5127 This variable holds the extension used to identify shared libraries
5128 (also known as shared objects) on the system. Usually set to 'so'.
5130 sockethdr (d_socket.U):
5131 This variable has any cpp '-I' flags needed for socket support.
5133 socketlib (d_socket.U):
5134 This variable has the names of any libraries needed for socket support.
5136 socksizetype (socksizetype.U):
5137 This variable holds the type used for the size argument
5138 for various socket calls like accept. Usual values include
5139 socklen_t, size_t, and int.
5142 This variable is used internally by Configure to determine the
5143 full pathname (if any) of the sort program. After Configure runs,
5144 the value is reset to a plain "sort" and is not useful.
5146 spackage (package.U):
5147 This variable contains the name of the package being constructed,
5148 with the first letter uppercased, i.e. suitable for starting
5151 spitshell (spitshell.U):
5152 This variable contains the command necessary to spit out a runnable
5153 shell on this system. It is either cat or a grep '-v' for # comments.
5155 sPRId64 (quadfio.U):
5156 This variable, if defined, contains the string used by stdio to
5157 format 64-bit decimal numbers (format 'd') for output.
5159 sPRIeldbl (longdblfio.U):
5160 This variable, if defined, contains the string used by stdio to
5161 format long doubles (format 'e') for output.
5163 sPRIEUldbl (longdblfio.U):
5164 This variable, if defined, contains the string used by stdio to
5165 format long doubles (format 'E') for output.
5166 The 'U' in the name is to separate this from sPRIeldbl so that even
5167 case-blind systems can see the difference.
5169 sPRIfldbl (longdblfio.U):
5170 This variable, if defined, contains the string used by stdio to
5171 format long doubles (format 'f') for output.
5173 sPRIFUldbl (longdblfio.U):
5174 This variable, if defined, contains the string used by stdio to
5175 format long doubles (format 'F') for output.
5176 The 'U' in the name is to separate this from sPRIfldbl so that even
5177 case-blind systems can see the difference.
5179 sPRIgldbl (longdblfio.U):
5180 This variable, if defined, contains the string used by stdio to
5181 format long doubles (format 'g') for output.
5183 sPRIGUldbl (longdblfio.U):
5184 This variable, if defined, contains the string used by stdio to
5185 format long doubles (format 'G') for output.
5186 The 'U' in the name is to separate this from sPRIgldbl so that even
5187 case-blind systems can see the difference.
5189 sPRIi64 (quadfio.U):
5190 This variable, if defined, contains the string used by stdio to
5191 format 64-bit decimal numbers (format 'i') for output.
5193 sPRIo64 (quadfio.U):
5194 This variable, if defined, contains the string used by stdio to
5195 format 64-bit octal numbers (format 'o') for output.
5197 sPRIu64 (quadfio.U):
5198 This variable, if defined, contains the string used by stdio to
5199 format 64-bit unsigned decimal numbers (format 'u') for output.
5201 sPRIx64 (quadfio.U):
5202 This variable, if defined, contains the string used by stdio to
5203 format 64-bit hexadecimal numbers (format 'x') for output.
5205 sPRIXU64 (quadfio.U):
5206 This variable, if defined, contains the string used by stdio to
5207 format 64-bit hExADECimAl numbers (format 'X') for output.
5208 The 'U' in the name is to separate this from sPRIx64 so that even
5209 case-blind systems can see the difference.
5211 srand48_r_proto (d_srand48_r.U):
5212 This variable encodes the prototype of srand48_r.
5213 It is zero if d_srand48_r is undef, and one of the
5214 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srand48_r
5217 srandom_r_proto (d_srandom_r.U):
5218 This variable encodes the prototype of srandom_r.
5219 It is zero if d_srandom_r is undef, and one of the
5220 REENTRANT_PROTO_T_ABC macros of reentr.h if d_srandom_r
5224 This variable holds the (possibly relative) path of the package source.
5225 It is up to the Makefile to use this variable and set VPATH accordingly
5226 to find the sources remotely. Use $pkgsrc to have an absolute path.
5228 sSCNfldbl (longdblfio.U):
5229 This variable, if defined, contains the string used by stdio to
5230 format long doubles (format 'f') for input.
5232 ssizetype (ssizetype.U):
5233 This variable defines ssizetype to be something like ssize_t,
5234 long or int. It is used by functions that return a count
5235 of bytes or an error condition. It must be a signed type.
5236 We will pick a type such that sizeof(SSize_t) == sizeof(Size_t).
5238 st_ino_sign (st_ino_def.U):
5239 This variable contains the signedness of struct stat's st_ino.
5240 1 for unsigned, -1 for signed.
5242 st_ino_size (st_ino_def.U):
5243 This variable contains the size of struct stat's st_ino in bytes.
5245 startperl (startperl.U):
5246 This variable contains the string to put on the front of a perl
5247 script to make sure (hopefully) that it runs with perl and not some
5248 shell. Of course, that leading line must be followed by the classical
5250 eval 'exec perl -S $0 ${1+"$@"}'
5251 if $running_under_some_shell;
5252 to guarantee perl startup should the shell execute the script. Note
5253 that this magic incantation is not understood by csh.
5255 startsh (startsh.U):
5256 This variable contains the string to put on the front of a shell
5257 script to make sure (hopefully) that it runs with sh and not some
5260 static_ext (Extensions.U):
5261 This variable holds a list of XS extension files we want to
5262 link statically into the package. It is used by Makefile.
5264 stdchar (stdchar.U):
5265 This variable conditionally defines STDCHAR to be the type of char
5266 used in stdio.h. It has the values "unsigned char" or "char".
5268 stdio_base (d_stdstdio.U):
5269 This variable defines how, given a FILE pointer, fp, to access the
5270 _base field (or equivalent) of stdio.h's FILE structure. This will
5271 be used to define the macro FILE_base(fp).
5273 stdio_bufsiz (d_stdstdio.U):
5274 This variable defines how, given a FILE pointer, fp, to determine
5275 the number of bytes store in the I/O buffer pointer to by the
5276 _base field (or equivalent) of stdio.h's FILE structure. This will
5277 be used to define the macro FILE_bufsiz(fp).
5279 stdio_cnt (d_stdstdio.U):
5280 This variable defines how, given a FILE pointer, fp, to access the
5281 _cnt field (or equivalent) of stdio.h's FILE structure. This will
5282 be used to define the macro FILE_cnt(fp).
5284 stdio_filbuf (d_stdstdio.U):
5285 This variable defines how, given a FILE pointer, fp, to tell
5286 stdio to refill its internal buffers (?). This will
5287 be used to define the macro FILE_filbuf(fp).
5289 stdio_ptr (d_stdstdio.U):
5290 This variable defines how, given a FILE pointer, fp, to access the
5291 _ptr field (or equivalent) of stdio.h's FILE structure. This will
5292 be used to define the macro FILE_ptr(fp).
5294 stdio_stream_array (stdio_streams.U):
5295 This variable tells the name of the array holding the stdio streams.
5296 Usual values include _iob, __iob, and __sF.
5298 strerror_r_proto (d_strerror_r.U):
5299 This variable encodes the prototype of strerror_r.
5300 It is zero if d_strerror_r is undef, and one of the
5301 REENTRANT_PROTO_T_ABC macros of reentr.h if d_strerror_r
5304 strings (i_string.U):
5305 This variable holds the full path of the string header that will be
5306 used. Typically /usr/include/string.h or /usr/include/strings.h.
5309 This variable is defined but not used by Configure.
5310 The value is the empty string and is not useful.
5312 subversion (patchlevel.U):
5313 The subversion level of this package.
5314 The value of subversion comes from the patchlevel.h file.
5315 In a version number such as 5.6.1, this is the "1".
5316 In patchlevel.h, this is referred to as "PERL_SUBVERSION".
5317 This is unique to perl.
5320 This variable holds the place where the manual is located on this
5321 system. It is not the place where the user wants to put his manual
5322 pages. Rather it is the place where Configure may look to find manual
5323 for unix commands (section 1 of the manual usually). See mansrc.
5325 sysroot (Sysroot.U):
5326 This variable is empty unless supplied by the Configure user.
5327 It can contain a path to an alternative root directory, under which
5328 headers and libraries for the compilation target can be found. This
5329 is generally used when cross-compiling using a gcc-like compiler.
5332 This variable is defined but not used by Configure.
5333 The value is the empty string and is not useful.
5336 This variable is defined but not used by Configure.
5337 The value is the empty string and is not useful.
5339 targetarch (Cross.U):
5340 If cross-compiling, this variable contains the target architecture.
5341 If not, this will be empty.
5343 targetdir (Cross.U):
5344 This variable contains a path that will be created on the target
5345 host using targetmkdir, and then used to copy the cross-compiled
5346 executables to. Defaults to '/tmp' if not set.
5348 targetenv (Cross.U):
5349 If cross-compiling, this variable can be used to modify the
5350 environment on the target system.
5351 However, how and where it's used, and even if it's used at all, is
5352 entirely dependent on both the transport mechanism (targetrun) and
5353 what the target system is. Unless the relevant documentation says
5354 otherwise, it is genereally not useful.
5356 targethost (Cross.U):
5357 This variable contains the name of a separate host machine that
5358 can be used to run compiled test programs and perl tests on.
5359 Set to empty string if not in use.
5361 targetmkdir (Cross.U):
5362 This variable contains the command used by Configure to create a
5363 new directory on the target host.
5365 targetport (Cross.U):
5366 This variable contains the number of a network port to be used to
5367 connect to the host in targethost, if unset defaults to 22 for ssh.
5370 If cross-compiling, this variable contains the location of sh on the
5372 If not, this will be the same as $sh.
5375 This variable is defined but not used by Configure.
5376 The value is the empty string and is not useful.
5379 This variable is defined but not used by Configure.
5380 The value is the empty string and is not useful.
5383 This variable is used internally by Configure to determine the
5384 full pathname (if any) of the test program. After Configure runs,
5385 the value is reset to a plain "test" and is not useful.
5387 timeincl (i_time.U):
5388 This variable holds the full path of the included time header(s).
5390 timetype (d_time.U):
5391 This variable holds the type returned by time(). It can be long,
5392 or time_t on BSD sites (in which case <sys/types.h> should be
5393 included). Anyway, the type Time_t should be used.
5395 tmpnam_r_proto (d_tmpnam_r.U):
5396 This variable encodes the prototype of tmpnam_r.
5397 It is zero if d_tmpnam_r is undef, and one of the
5398 REENTRANT_PROTO_T_ABC macros of reentr.h if d_tmpnam_r
5402 This variable contains the command used by Configure
5403 to copy to from the target host. Useful and available
5404 only during Perl build.
5405 The string ':' if not cross-compiling.
5408 This variable is used internally by Configure to determine the
5409 full pathname (if any) of the touch program. After Configure runs,
5410 the value is reset to a plain "touch" and is not useful.
5413 This variable is used internally by Configure to determine the
5414 full pathname (if any) of the tr program. After Configure runs,
5415 the value is reset to a plain "tr" and is not useful.
5418 This variable contains the value to be passed to the tr(1)
5419 command to transliterate a newline. Typical values are
5420 '\012' and '\n'. This is needed for EBCDIC systems where
5421 newline is not necessarily '\012'.
5424 This variable is defined but not used by Configure.
5425 The value is the empty string and is not useful.
5427 ttyname_r_proto (d_ttyname_r.U):
5428 This variable encodes the prototype of ttyname_r.
5429 It is zero if d_ttyname_r is undef, and one of the
5430 REENTRANT_PROTO_T_ABC macros of reentr.h if d_ttyname_r
5434 This variable is the size of an U16 in bytes.
5437 This variable contains the C type used for Perl's U16.
5440 This variable is the size of an U32 in bytes.
5443 This variable contains the C type used for Perl's U32.
5446 This variable is the size of an U64 in bytes.
5449 This variable contains the C type used for Perl's U64.
5452 This variable is the size of an U8 in bytes.
5455 This variable contains the C type used for Perl's U8.
5458 This variable contains the format string used for printing a Uid_t.
5460 uidsign (uidsign.U):
5461 This variable contains the signedness of a uidtype.
5462 1 for unsigned, -1 for signed.
5464 uidsize (uidsize.U):
5465 This variable contains the size of a uidtype in bytes.
5467 uidtype (uidtype.U):
5468 This variable defines Uid_t to be something like uid_t, int,
5469 ushort, or whatever type is used to declare user ids in the kernel.
5472 This variable is used internally by Configure to determine the
5473 full pathname (if any) of the uname program. After Configure runs,
5474 the value is reset to a plain "uname" and is not useful.
5477 This variable is used internally by Configure to determine the
5478 full pathname (if any) of the uniq program. After Configure runs,
5479 the value is reset to a plain "uniq" and is not useful.
5481 uquadtype (quadtype.U):
5482 This variable defines Uquad_t to be something like unsigned long,
5483 unsigned int, unsigned long long, uint64_t, or whatever type is
5484 used for 64-bit integers.
5486 use5005threads (usethreads.U):
5487 This variable conditionally defines the USE_5005THREADS symbol,
5488 and indicates that Perl should be built to use the 5.005-based
5489 threading implementation. Only valid up to 5.8.x.
5491 use64bitall (use64bits.U):
5492 This variable conditionally defines the USE_64_BIT_ALL symbol,
5493 and indicates that 64-bit integer types should be used
5494 when available. The maximal possible
5495 64-bitness is employed: LP64 or ILP64, meaning that you will
5496 be able to use more than 2 gigabytes of memory. This mode is
5497 even more binary incompatible than USE_64_BIT_INT. You may not
5498 be able to run the resulting executable in a 32-bit CPU at all or
5499 you may need at least to reboot your OS to 64-bit mode.
5501 use64bitint (use64bits.U):
5502 This variable conditionally defines the USE_64_BIT_INT symbol,
5503 and indicates that 64-bit integer types should be used
5504 when available. The minimal possible 64-bitness
5505 is employed, just enough to get 64-bit integers into Perl.
5506 This may mean using for example "long longs", while your memory
5507 may still be limited to 2 gigabytes.
5509 usecbacktrace (usebacktrace.U):
5510 This variable indicates whether we are compiling with backtrace
5513 usecrosscompile (Cross.U):
5514 This variable conditionally defines the USE_CROSS_COMPILE symbol,
5515 and indicates that Perl has been cross-compiled.
5518 This variable indicates that Perl was configured with development
5519 features enabled. This should not be done for production builds.
5522 This variable indicates if the system supports dynamic
5523 loading of some sort. See also dlsrc and dlobj.
5525 usedtrace (usedtrace.U):
5526 This variable indicates whether we are compiling with dtrace
5527 support. See also dtrace.
5529 usefaststdio (usefaststdio.U):
5530 This variable conditionally defines the USE_FAST_STDIO symbol,
5531 and indicates that Perl should be built to use 'fast stdio'.
5532 Defaults to define in Perls 5.8 and earlier, to undef later.
5534 useithreads (usethreads.U):
5535 This variable conditionally defines the USE_ITHREADS symbol,
5536 and indicates that Perl should be built to use the interpreter-based
5537 threading implementation.
5539 usekernprocpathname (usekernprocpathname.U):
5540 This variable, indicates that we can use sysctl with
5541 KERN_PROC_PATHNAME to get a full path for the executable, and hence
5542 convert $^X to an absolute path.
5544 uselargefiles (uselfs.U):
5545 This variable conditionally defines the USE_LARGE_FILES symbol,
5546 and indicates that large file interfaces should be used when
5549 uselongdouble (uselongdbl.U):
5550 This variable conditionally defines the USE_LONG_DOUBLE symbol,
5551 and indicates that long doubles should be used when available.
5553 usemallocwrap (mallocsrc.U):
5554 This variable contains y if we are wrapping malloc to prevent
5555 integer overflow during size calculations.
5557 usemorebits (usemorebits.U):
5558 This variable conditionally defines the USE_MORE_BITS symbol,
5559 and indicates that explicit 64-bit interfaces and long doubles
5560 should be used when available.
5562 usemultiplicity (usemultiplicity.U):
5563 This variable conditionally defines the MULTIPLICITY symbol,
5564 and indicates that Perl should be built to use multiplicity.
5566 usemymalloc (mallocsrc.U):
5567 This variable contains y if the malloc that comes with this package
5568 is desired over the system's version of malloc. People often include
5569 special versions of malloc for efficiency, but such versions are often
5570 less portable. See also mallocsrc and mallocobj.
5571 If this is 'y', then -lmalloc is removed from $libs.
5574 This variable contains 'true' or 'false' depending whether the
5575 nm extraction is wanted or not.
5577 usensgetexecutablepath (usensgetexecutablepath.U):
5578 This symbol, if defined, indicates that we can use _NSGetExecutablePath
5579 and realpath to get a full path for the executable, and hence convert
5580 $^X to an absolute path.
5582 useopcode (Extensions.U):
5583 This variable holds either 'true' or 'false' to indicate
5584 whether the Opcode extension should be used. The sole
5585 use for this currently is to allow an easy mechanism
5586 for users to skip the Opcode extension from the Configure
5589 useperlio (useperlio.U):
5590 This variable conditionally defines the USE_PERLIO symbol,
5591 and indicates that the PerlIO abstraction should be
5594 useposix (Extensions.U):
5595 This variable holds either 'true' or 'false' to indicate
5596 whether the POSIX extension should be used. The sole
5597 use for this currently is to allow an easy mechanism
5598 for hints files to indicate that POSIX will not compile
5599 on a particular system.
5601 usequadmath (usequadmath.U):
5602 This variable conditionally defines the USE_QUADMATH symbol,
5603 and indicates that the quadmath library __float128 long doubles
5604 should be used when available.
5606 usereentrant (usethreads.U):
5607 This variable conditionally defines the USE_REENTRANT_API symbol,
5608 which indicates that the thread code may try to use the various
5609 _r versions of library functions. This is only potentially
5610 meaningful if usethreads is set and is very experimental, it is
5611 not even prompted for.
5613 userelocatableinc (bin.U):
5614 This variable is set to true to indicate that perl should relocate
5615 @INC entries at runtime based on the path to the perl binary.
5616 Any @INC paths starting ".../" are relocated relative to the directory
5617 containing the perl binary, and a logical cleanup of the path is then
5618 made around the join point (removing "dir/../" pairs)
5620 useshrplib (libperl.U):
5621 This variable is set to 'true' if the user wishes
5622 to build a shared libperl, and 'false' otherwise.
5624 usesitecustomize (d_sitecustomize.U):
5625 This variable is set to true when the user requires a mechanism that
5626 allows the sysadmin to add entries to @INC at runtime. This variable
5627 being set, makes perl run '$sitelib/sitecustomize.pl' at startup.
5629 usesocks (usesocks.U):
5630 This variable conditionally defines the USE_SOCKS symbol,
5631 and indicates that Perl should be built to use SOCKS.
5633 usethreads (usethreads.U):
5634 This variable conditionally defines the USE_THREADS symbol,
5635 and indicates that Perl should be built to use threads.
5637 usevendorprefix (vendorprefix.U):
5638 This variable tells whether the vendorprefix
5639 and consequently other vendor* paths are in use.
5641 useversionedarchname (archname.U):
5642 This variable indicates whether to include the $api_versionstring
5643 as a component of the $archname.
5645 usevfork (d_vfork.U):
5646 This variable is set to true when the user accepts to use vfork.
5647 It is set to false when no vfork is available or when the user
5648 explicitly requests not to use vfork.
5651 This variable holds the path of the include files, which is
5652 usually /usr/include. It is mainly used by other Configure units.
5655 This variable is defined but not used by Configure.
5656 The value is the empty string and is not useful.
5658 uvoformat (perlxvf.U):
5659 This variable contains the format string used for printing
5660 a Perl UV as an unsigned octal integer.
5663 This variable is the size of a UV in bytes.
5666 This variable contains the C type used for Perl's UV.
5668 uvuformat (perlxvf.U):
5669 This variable contains the format string used for printing
5670 a Perl UV as an unsigned decimal integer.
5672 uvxformat (perlxvf.U):
5673 This variable contains the format string used for printing
5674 a Perl UV as an unsigned hexadecimal integer in lowercase abcdef.
5676 uvXUformat (perlxvf.U):
5677 This variable contains the format string used for printing
5678 a Perl UV as an unsigned hexadecimal integer in uppercase ABCDEF.
5680 vaproto (vaproto.U):
5681 This variable conditionally defines CAN_VAPROTO on systems supporting
5682 prototype declaration of functions with a variable number of
5683 arguments. See also prototype.
5685 vendorarch (vendorarch.U):
5686 This variable contains the value of the PERL_VENDORARCH symbol.
5687 It may have a ~ on the front.
5688 The standard distribution will put nothing in this directory.
5689 Vendors who distribute perl may wish to place their own
5690 architecture-dependent modules and extensions in this directory with
5691 MakeMaker Makefile.PL INSTALLDIRS=vendor
5692 or equivalent. See INSTALL for details.
5694 vendorarchexp (vendorarch.U):
5695 This variable is the ~name expanded version of vendorarch, so that you
5696 may use it directly in Makefiles or shell scripts.
5698 vendorbin (vendorbin.U):
5699 This variable contains the eventual value of the VENDORBIN symbol.
5700 It may have a ~ on the front.
5701 The standard distribution will put nothing in this directory.
5702 Vendors who distribute perl may wish to place additional
5703 binaries in this directory with
5704 MakeMaker Makefile.PL INSTALLDIRS=vendor
5705 or equivalent. See INSTALL for details.
5707 vendorbinexp (vendorbin.U):
5708 This variable is the ~name expanded version of vendorbin, so that you
5709 may use it directly in Makefiles or shell scripts.
5711 vendorhtml1dir (vendorhtml1dir.U):
5712 This variable contains the name of the directory for html
5713 pages. It may have a ~ on the front.
5714 The standard distribution will put nothing in this directory.
5715 Vendors who distribute perl may wish to place their own
5716 html pages in this directory with
5717 MakeMaker Makefile.PL INSTALLDIRS=vendor
5718 or equivalent. See INSTALL for details.
5720 vendorhtml1direxp (vendorhtml1dir.U):
5721 This variable is the ~name expanded version of vendorhtml1dir, so that you
5722 may use it directly in Makefiles or shell scripts.
5724 vendorhtml3dir (vendorhtml3dir.U):
5725 This variable contains the name of the directory for html
5726 library pages. It may have a ~ on the front.
5727 The standard distribution will put nothing in this directory.
5728 Vendors who distribute perl may wish to place their own
5729 html pages for modules and extensions in this directory with
5730 MakeMaker Makefile.PL INSTALLDIRS=vendor
5731 or equivalent. See INSTALL for details.
5733 vendorhtml3direxp (vendorhtml3dir.U):
5734 This variable is the ~name expanded version of vendorhtml3dir, so that you
5735 may use it directly in Makefiles or shell scripts.
5737 vendorlib (vendorlib.U):
5738 This variable contains the eventual value of the VENDORLIB symbol,
5739 which is the name of the private library for this package.
5740 The standard distribution will put nothing in this directory.
5741 Vendors who distribute perl may wish to place their own
5742 modules in this directory with
5743 MakeMaker Makefile.PL INSTALLDIRS=vendor
5744 or equivalent. See INSTALL for details.
5746 vendorlib_stem (vendorlib.U):
5747 This variable is $vendorlibexp with any trailing version-specific component
5748 removed. The elements in inc_version_list (inc_version_list.U) can
5749 be tacked onto this variable to generate a list of directories to search.
5751 vendorlibexp (vendorlib.U):
5752 This variable is the ~name expanded version of vendorlib, so that you
5753 may use it directly in Makefiles or shell scripts.
5755 vendorman1dir (vendorman1dir.U):
5756 This variable contains the name of the directory for man1
5757 pages. It may have a ~ on the front.
5758 The standard distribution will put nothing in this directory.
5759 Vendors who distribute perl may wish to place their own
5760 man1 pages in this directory with
5761 MakeMaker Makefile.PL INSTALLDIRS=vendor
5762 or equivalent. See INSTALL for details.
5764 vendorman1direxp (vendorman1dir.U):
5765 This variable is the ~name expanded version of vendorman1dir, so that you
5766 may use it directly in Makefiles or shell scripts.
5768 vendorman3dir (vendorman3dir.U):
5769 This variable contains the name of the directory for man3
5770 pages. It may have a ~ on the front.
5771 The standard distribution will put nothing in this directory.
5772 Vendors who distribute perl may wish to place their own
5773 man3 pages in this directory with
5774 MakeMaker Makefile.PL INSTALLDIRS=vendor
5775 or equivalent. See INSTALL for details.
5777 vendorman3direxp (vendorman3dir.U):
5778 This variable is the ~name expanded version of vendorman3dir, so that you
5779 may use it directly in Makefiles or shell scripts.
5781 vendorprefix (vendorprefix.U):
5782 This variable holds the full absolute path of the directory below
5783 which the vendor will install add-on packages.
5784 See INSTALL for usage and examples.
5786 vendorprefixexp (vendorprefix.U):
5787 This variable holds the full absolute path of the directory below
5788 which the vendor will install add-on packages. Derived from vendorprefix.
5790 vendorscript (vendorscript.U):
5791 This variable contains the eventual value of the VENDORSCRIPT symbol.
5792 It may have a ~ on the front.
5793 The standard distribution will put nothing in this directory.
5794 Vendors who distribute perl may wish to place additional
5795 executable scripts in this directory with
5796 MakeMaker Makefile.PL INSTALLDIRS=vendor
5797 or equivalent. See INSTALL for details.
5799 vendorscriptexp (vendorscript.U):
5800 This variable is the ~name expanded version of vendorscript, so that you
5801 may use it directly in Makefiles or shell scripts.
5803 version (patchlevel.U):
5804 The full version number of this package, such as 5.6.1 (or 5_6_1).
5805 This combines revision, patchlevel, and subversion to get the
5806 full version number, including any possible subversions.
5807 This is suitable for use as a directory name, and hence is
5808 filesystem dependent.
5810 version_patchlevel_string (patchlevel.U):
5811 This is a string combining version, subversion and
5812 perl_patchlevel (if perl_patchlevel is non-zero).
5813 It is typically something like
5814 'version 7 subversion 1' or
5815 'version 7 subversion 1 patchlevel 11224'
5816 It is computed here to avoid duplication of code in myconfig.SH
5819 versiononly (versiononly.U):
5820 If set, this symbol indicates that only the version-specific
5821 components of a perl installation should be installed.
5822 This may be useful for making a test installation of a new
5823 version without disturbing the existing installation.
5824 Setting versiononly is equivalent to setting installperl's -v option.
5825 In particular, the non-versioned scripts and programs such as
5826 a2p, c2ph, h2xs, pod2*, and perldoc are not installed
5827 (see INSTALL for a more complete list). Nor are the man
5829 Usually, this is undef.
5832 This variable is defined but not used by Configure.
5833 The value is the empty string and is not useful.
5836 This variable holds extra path (space-separated) used to find
5837 libraries on this platform, for example CPU-specific libraries
5838 (on multi-CPU platforms) may be listed here.
5841 This variable holds the name of the compiler compiler we
5842 want to use in the Makefile. It can be yacc, byacc, or bison -y.
5845 This variable contains any additional yacc flags desired by the
5846 user. It is up to the Makefile to use this.
5849 This variable is defined but not used by Configure.
5850 The value is the empty string and is not useful.
5853 This variable is used internally by Configure to determine the
5854 full pathname (if any) of the zip program. After Configure runs,
5855 the value is reset to a plain "zip" and is not useful.