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1f822b28 JH |
1 | |
2 | !!!!!!! DO NOT EDIT THIS FILE !!!!!!! | |
3 | This file is built by metaconfig. | |
4 | ||
d7418ba7 | 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 | |
ebc74a4b GS |
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 | |
24412007 | 9 | the formatting regular.] |
d7418ba7 | 10 | |
781b178c | 11 | _a (Unix.U): |
9285ede2 | 12 | This variable defines the extension used for ordinary library files. |
781b178c JH |
13 | For unix, it is '.a'. The '.' is included. Other possible |
14 | values include '.lib'. | |
15 | ||
16 | _exe (Unix.U): | |
17 | This variable defines the extension used for executable files. | |
24412007 JH |
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. | |
781b178c JH |
21 | |
22 | _o (Unix.U): | |
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'. | |
26 | ||
27 | afs (afs.U): | |
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 | |
31 | what you are doing. | |
32 | ||
a6d26a0d JH |
33 | afsroot (afs.U): |
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 | |
635aebb7 | 37 | tests for AFSness in the Perl configure and test process. |
a6d26a0d | 38 | |
781b178c JH |
39 | alignbytes (alignbytes.U): |
40 | This variable holds the number of bytes required to align a | |
87b71857 JH |
41 | double-- or a long double when applicable. Usual values are |
42 | 2, 4 and 8. The default is eight, for safety. | |
781b178c JH |
43 | |
44 | ansi2knr (ansi2knr.U): | |
635aebb7 | 45 | This variable is set if the user needs to run ansi2knr. |
781b178c JH |
46 | Currently, this is not supported, so we just abort. |
47 | ||
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. | |
52 | ||
ff935051 JH |
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, | |
59 | like 5.00563. | |
9c20e9bc JH |
60 | |
61 | perl.c:incpush() and lib/lib.pm will automatically search in | |
ff935051 JH |
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. | |
9c20e9bc JH |
69 | |
70 | XXX To do: Since compatibility can depend on compile time | |
08e5223a | 71 | options (such as bincompat, longlong, etc.) it should |
ff935051 JH |
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. | |
77 | ||
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 | |
83 | full details. | |
84 | ||
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.) | |
93 | ||
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. | |
781b178c JH |
98 | |
99 | ar (Loc.U): | |
5bf26616 | 100 | This variable is used internally by Configure to determine the |
781b178c JH |
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. | |
103 | ||
104 | archlib (archlib.U): | |
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. | |
110 | ||
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. | |
114 | ||
781b178c JH |
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. | |
118 | ||
df4c34dc MB |
119 | archname64 (use64bits.U): |
120 | This variable is used for the 64-bitness part of $archname. | |
121 | ||
781b178c JH |
122 | archobjs (Unix.U): |
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 | |
127 | include os2/os2.obj. | |
128 | ||
10bc17b6 JH |
129 | asctime_r_proto (d_asctime_r.U): |
130 | This variable encodes the prototype of asctime_r. | |
39183afa JH |
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 | |
133 | is defined. | |
10bc17b6 | 134 | |
781b178c | 135 | awk (Loc.U): |
5bf26616 | 136 | This variable is used internally by Configure to determine the |
781b178c JH |
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. | |
139 | ||
140 | baserev (baserev.U): | |
141 | The base revision level of this package, from the .package file. | |
142 | ||
143 | bash (Loc.U): | |
144 | This variable is defined but not used by Configure. | |
145 | The value is a plain '' and is not useful. | |
146 | ||
147 | bin (bin.U): | |
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. | |
152 | ||
153 | binexp (bin.U): | |
154 | This is the same as the bin variable, but is filename expanded at | |
155 | configuration time, for use in your makefiles. | |
156 | ||
157 | bison (Loc.U): | |
2d967e39 JH |
158 | This variable is used internally by Configure to determine the |
159 | full pathname (if any) of the bison program. After Configure runs, | |
160 | the value is reset to a plain "bison" and is not useful. | |
781b178c JH |
161 | |
162 | byacc (Loc.U): | |
5bf26616 | 163 | This variable is used internally by Configure to determine the |
781b178c JH |
164 | full pathname (if any) of the byacc program. After Configure runs, |
165 | the value is reset to a plain "byacc" and is not useful. | |
166 | ||
167 | byteorder (byteorder.U): | |
24412007 JH |
168 | This variable holds the byte order in a UV. In the following, |
169 | larger digits indicate more significance. The variable byteorder | |
170 | is either 4321 on a big-endian machine, or 1234 on a little-endian, | |
171 | or 87654321 on a Cray ... or 3412 with weird order ! | |
781b178c JH |
172 | |
173 | c (n.U): | |
174 | This variable contains the \c string if that is what causes the echo | |
175 | command to suppress newline. Otherwise it is null. Correct usage is | |
176 | $echo $n "prompt for a question: $c". | |
177 | ||
178 | castflags (d_castneg.U): | |
179 | This variable contains a flag that precise difficulties the | |
180 | compiler has casting odd floating values to unsigned long: | |
181 | 0 = ok | |
182 | 1 = couldn't cast < 0 | |
183 | 2 = couldn't cast >= 0x80000000 | |
184 | 4 = couldn't cast in argument expression list | |
185 | ||
186 | cat (Loc.U): | |
5bf26616 | 187 | This variable is used internally by Configure to determine the |
781b178c JH |
188 | full pathname (if any) of the cat program. After Configure runs, |
189 | the value is reset to a plain "cat" and is not useful. | |
190 | ||
191 | cc (cc.U): | |
192 | This variable holds the name of a command to execute a C compiler which | |
193 | can resolve multiple global references that happen to have the same | |
5869b1f1 JH |
194 | name. Usual values are 'cc' and 'gcc'. |
195 | Fervent ANSI compilers may be called 'c89'. AIX has xlc. | |
781b178c JH |
196 | |
197 | cccdlflags (dlsrc.U): | |
198 | This variable contains any special flags that might need to be | |
199 | passed with 'cc -c' to compile modules to be used to create a shared | |
200 | library that will be used for dynamic loading. For hpux, this | |
201 | should be +z. It is up to the makefile to use it. | |
202 | ||
203 | ccdlflags (dlsrc.U): | |
204 | This variable contains any special flags that might need to be | |
205 | passed to cc to link with a shared library for dynamic loading. | |
206 | It is up to the makefile to use it. For sunos 4.1, it should | |
207 | be empty. | |
208 | ||
209 | ccflags (ccflags.U): | |
210 | This variable contains any additional C compiler flags desired by | |
211 | the user. It is up to the Makefile to use this. | |
212 | ||
af960fef JH |
213 | ccflags_uselargefiles (uselfs.U): |
214 | This variable contains the compiler flags needed by large file builds | |
215 | and added to ccflags by hints files. | |
216 | ||
6b356c8e JH |
217 | ccname (Checkcc.U): |
218 | This can set either by hints files or by Configure. If using | |
219 | gcc, this is gcc, and if not, usually equal to cc, unimpressive, no? | |
220 | Some platforms, however, make good use of this by storing the | |
221 | flavor of the C compiler being used here. For example if using | |
222 | the Sun WorkShop suite, ccname will be 'workshop'. | |
223 | ||
781b178c JH |
224 | ccsymbols (Cppsym.U): |
225 | The variable contains the symbols defined by the C compiler alone. | |
52c7d5b6 JH |
226 | The symbols defined by cpp or by cc when it calls cpp are not in |
227 | this list, see cppsymbols and cppccsymbols. | |
781b178c JH |
228 | The list is a space-separated list of symbol=value tokens. |
229 | ||
6b356c8e JH |
230 | ccversion (Checkcc.U): |
231 | This can set either by hints files or by Configure. If using | |
232 | a (non-gcc) vendor cc, this variable may contain a version for | |
233 | the compiler. | |
234 | ||
781b178c JH |
235 | cf_by (cf_who.U): |
236 | Login name of the person who ran the Configure script and answered the | |
237 | questions. This is used to tag both config.sh and config_h.SH. | |
238 | ||
239 | cf_email (cf_email.U): | |
240 | Electronic mail address of the person who ran Configure. This can be | |
241 | used by units that require the user's e-mail, like MailList.U. | |
242 | ||
243 | cf_time (cf_who.U): | |
244 | Holds the output of the "date" command when the configuration file was | |
245 | produced. This is used to tag both config.sh and config_h.SH. | |
246 | ||
a22e52b9 JH |
247 | charsize (charsize.U): |
248 | This variable contains the value of the CHARSIZE symbol, which | |
249 | indicates to the C program how many bytes there are in a character. | |
250 | ||
781b178c JH |
251 | chgrp (Loc.U): |
252 | This variable is defined but not used by Configure. | |
253 | The value is a plain '' and is not useful. | |
254 | ||
255 | chmod (Loc.U): | |
2765b840 JH |
256 | This variable is used internally by Configure to determine the |
257 | full pathname (if any) of the chmod program. After Configure runs, | |
258 | the value is reset to a plain "chmod" and is not useful. | |
781b178c JH |
259 | |
260 | chown (Loc.U): | |
261 | This variable is defined but not used by Configure. | |
262 | The value is a plain '' and is not useful. | |
263 | ||
264 | clocktype (d_times.U): | |
265 | This variable holds the type returned by times(). It can be long, | |
266 | or clock_t on BSD sites (in which case <sys/types.h> should be | |
267 | included). | |
268 | ||
269 | comm (Loc.U): | |
5bf26616 | 270 | This variable is used internally by Configure to determine the |
781b178c JH |
271 | full pathname (if any) of the comm program. After Configure runs, |
272 | the value is reset to a plain "comm" and is not useful. | |
273 | ||
274 | compress (Loc.U): | |
275 | This variable is defined but not used by Configure. | |
276 | The value is a plain '' and is not useful. | |
277 | ||
278 | contains (contains.U): | |
279 | This variable holds the command to do a grep with a proper return | |
280 | status. On most sane systems it is simply "grep". On insane systems | |
281 | it is a grep followed by a cat followed by a test. This variable | |
282 | is primarily for the use of other Configure units. | |
283 | ||
284 | cp (Loc.U): | |
5bf26616 | 285 | This variable is used internally by Configure to determine the |
781b178c JH |
286 | full pathname (if any) of the cp program. After Configure runs, |
287 | the value is reset to a plain "cp" and is not useful. | |
288 | ||
289 | cpio (Loc.U): | |
290 | This variable is defined but not used by Configure. | |
291 | The value is a plain '' and is not useful. | |
292 | ||
293 | cpp (Loc.U): | |
5bf26616 | 294 | This variable is used internally by Configure to determine the |
781b178c JH |
295 | full pathname (if any) of the cpp program. After Configure runs, |
296 | the value is reset to a plain "cpp" and is not useful. | |
297 | ||
298 | cpp_stuff (cpp_stuff.U): | |
505656d3 | 299 | This variable contains an identification of the concatenation mechanism |
781b178c JH |
300 | used by the C preprocessor. |
301 | ||
302 | cppccsymbols (Cppsym.U): | |
52c7d5b6 JH |
303 | The variable contains the symbols defined by the C compiler |
304 | when it calls cpp. The symbols defined by the cc alone or cpp | |
305 | alone are not in this list, see ccsymbols and cppsymbols. | |
781b178c JH |
306 | The list is a space-separated list of symbol=value tokens. |
307 | ||
308 | cppflags (ccflags.U): | |
309 | This variable holds the flags that will be passed to the C pre- | |
310 | processor. It is up to the Makefile to use it. | |
311 | ||
312 | cpplast (cppstdin.U): | |
313 | This variable has the same functionality as cppminus, only it applies | |
314 | to cpprun and not cppstdin. | |
315 | ||
316 | cppminus (cppstdin.U): | |
317 | This variable contains the second part of the string which will invoke | |
318 | the C preprocessor on the standard input and produce to standard | |
319 | output. This variable will have the value "-" if cppstdin needs | |
320 | a minus to specify standard input, otherwise the value is "". | |
321 | ||
322 | cpprun (cppstdin.U): | |
323 | This variable contains the command which will invoke a C preprocessor | |
324 | on standard input and put the output to stdout. It is guaranteed not | |
325 | to be a wrapper and may be a null string if no preprocessor can be | |
326 | made directly available. This preprocessor might be different from the | |
327 | one used by the C compiler. Don't forget to append cpplast after the | |
328 | preprocessor options. | |
329 | ||
330 | cppstdin (cppstdin.U): | |
331 | This variable contains the command which will invoke the C | |
332 | preprocessor on standard input and put the output to stdout. | |
333 | It is primarily used by other Configure units that ask about | |
334 | preprocessor symbols. | |
335 | ||
336 | cppsymbols (Cppsym.U): | |
52c7d5b6 JH |
337 | The variable contains the symbols defined by the C preprocessor |
338 | alone. The symbols defined by cc or by cc when it calls cpp are | |
339 | not in this list, see ccsymbols and cppccsymbols. | |
781b178c JH |
340 | The list is a space-separated list of symbol=value tokens. |
341 | ||
10bc17b6 JH |
342 | crypt_r_proto (d_crypt_r.U): |
343 | This variable encodes the prototype of crypt_r. | |
39183afa JH |
344 | It is zero if d_crypt_r is undef, and one of the |
345 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_crypt_r | |
346 | is defined. | |
10bc17b6 | 347 | |
781b178c JH |
348 | cryptlib (d_crypt.U): |
349 | This variable holds -lcrypt or the path to a libcrypt.a archive if | |
350 | the crypt() function is not defined in the standard C library. It is | |
351 | up to the Makefile to use this. | |
352 | ||
353 | csh (Loc.U): | |
5bf26616 | 354 | This variable is used internally by Configure to determine the |
781b178c JH |
355 | full pathname (if any) of the csh program. After Configure runs, |
356 | the value is reset to a plain "csh" and is not useful. | |
357 | ||
10bc17b6 JH |
358 | ctermid_r_proto (d_ctermid_r.U): |
359 | This variable encodes the prototype of ctermid_r. | |
39183afa JH |
360 | It is zero if d_ctermid_r is undef, and one of the |
361 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_ctermid_r | |
362 | is defined. | |
10bc17b6 JH |
363 | |
364 | ctime_r_proto (d_ctime_r.U): | |
365 | This variable encodes the prototype of ctime_r. | |
39183afa JH |
366 | It is zero if d_ctime_r is undef, and one of the |
367 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_ctime_r | |
368 | is defined. | |
10bc17b6 | 369 | |
74cac757 JH |
370 | d__fwalk (d__fwalk.U): |
371 | This variable conditionally defines HAS__FWALK if _fwalk() is | |
372 | available to apply a function to all the file handles. | |
373 | ||
781b178c JH |
374 | d_access (d_access.U): |
375 | This variable conditionally defines HAS_ACCESS if the access() system | |
376 | call is available to check for access permissions using real IDs. | |
377 | ||
378 | d_accessx (d_accessx.U): | |
379 | This variable conditionally defines the HAS_ACCESSX symbol, which | |
380 | indicates to the C program that the accessx() routine is available. | |
381 | ||
5c567d7d JH |
382 | d_aintl (d_aintl.U): |
383 | This variable conditionally defines the HAS_AINTL symbol, which | |
384 | indicates to the C program that the aintl() routine is available. | |
385 | If copysignl is also present we can emulate modfl. | |
386 | ||
781b178c JH |
387 | d_alarm (d_alarm.U): |
388 | This variable conditionally defines the HAS_ALARM symbol, which | |
389 | indicates to the C program that the alarm() routine is available. | |
390 | ||
391 | d_archlib (archlib.U): | |
392 | This variable conditionally defines ARCHLIB to hold the pathname | |
393 | of architecture-dependent library files for $package. If | |
394 | $archlib is the same as $privlib, then this is set to undef. | |
395 | ||
10bc17b6 JH |
396 | d_asctime_r (d_asctime_r.U): |
397 | This variable conditionally defines the HAS_ASCTIME_R symbol, | |
398 | which indicates to the C program that the asctime_r() | |
399 | routine is available. | |
400 | ||
11dc3f68 JH |
401 | d_atolf (atolf.U): |
402 | This variable conditionally defines the HAS_ATOLF symbol, which | |
403 | indicates to the C program that the atolf() routine is available. | |
404 | ||
405 | d_atoll (atoll.U): | |
406 | This variable conditionally defines the HAS_ATOLL symbol, which | |
407 | indicates to the C program that the atoll() routine is available. | |
408 | ||
df4c34dc | 409 | d_attribute_format (d_attribut.U): |
0dbb1585 AL |
410 | This variable conditionally defines HASATTRIBUTE_FORMAT, which |
411 | indicates the C compiler can check for printf-like formats. | |
412 | ||
df4c34dc | 413 | d_attribute_malloc (d_attribut.U): |
0dbb1585 AL |
414 | This variable conditionally defines HASATTRIBUTE_MALLOC, which |
415 | indicates the C compiler can understand functions as having | |
416 | malloc-like semantics. | |
417 | ||
df4c34dc | 418 | d_attribute_nonnull (d_attribut.U): |
0dbb1585 AL |
419 | This variable conditionally defines HASATTRIBUTE_NONNULL, which |
420 | indicates that the C compiler can know that certain arguments | |
421 | must not be NULL, and will check accordingly at compile time. | |
422 | ||
df4c34dc | 423 | d_attribute_noreturn (d_attribut.U): |
0dbb1585 AL |
424 | This variable conditionally defines HASATTRIBUTE_NORETURN, which |
425 | indicates that the C compiler can know that certain functions | |
426 | are guaranteed never to return. | |
427 | ||
df4c34dc | 428 | d_attribute_pure (d_attribut.U): |
0dbb1585 AL |
429 | This variable conditionally defines HASATTRIBUTE_PURE, which |
430 | indicates that the C compiler can know that certain functions | |
431 | are "pure" functions, meaning that they have no side effects, and | |
432 | only rely on function input and/or global data for their results. | |
433 | ||
df4c34dc | 434 | d_attribute_unused (d_attribut.U): |
0dbb1585 AL |
435 | This variable conditionally defines HASATTRIBUTE_UNUSED, which |
436 | indicates that the C compiler can know that certain variables | |
437 | and arguments may not always be used, and to not throw warnings | |
438 | if they don't get used. | |
439 | ||
df4c34dc | 440 | d_attribute_warn_unused_result (d_attribut.U): |
0dbb1585 AL |
441 | This variable conditionally defines |
442 | HASATTRIBUTE_WARN_UNUSED_RESULT, which indicates that the C | |
443 | compiler can know that certain functions have a return values | |
444 | that must not be ignored, such as malloc() or open(). | |
781b178c JH |
445 | |
446 | d_bcmp (d_bcmp.U): | |
447 | This variable conditionally defines the HAS_BCMP symbol if | |
448 | the bcmp() routine is available to compare strings. | |
449 | ||
450 | d_bcopy (d_bcopy.U): | |
451 | This variable conditionally defines the HAS_BCOPY symbol if | |
452 | the bcopy() routine is available to copy strings. | |
453 | ||
454 | d_bsd (Guess.U): | |
455 | This symbol conditionally defines the symbol BSD when running on a | |
456 | BSD system. | |
457 | ||
458 | d_bsdgetpgrp (d_getpgrp.U): | |
459 | This variable conditionally defines USE_BSD_GETPGRP if | |
460 | getpgrp needs one arguments whereas USG one needs none. | |
461 | ||
462 | d_bsdsetpgrp (d_setpgrp.U): | |
463 | This variable conditionally defines USE_BSD_SETPGRP if | |
464 | setpgrp needs two arguments whereas USG one needs none. | |
465 | See also d_setpgid for a POSIX interface. | |
466 | ||
635aebb7 AL |
467 | d_builtin_choose_expr (d_builtin.U): |
468 | This conditionally defines HAS_BUILTIN_CHOOSE_EXPR, which | |
469 | indicates that the compiler supports __builtin_choose_expr(x,y,z). | |
470 | This built-in function is analogous to the "x?y:z" operator in C, | |
471 | except that the expression returned has its type unaltered by | |
472 | promotion rules. Also, the built-in function does not evaluate | |
473 | the expression that was not chosen. | |
474 | ||
475 | d_builtin_expect (d_builtin.U): | |
476 | This conditionally defines HAS_BUILTIN_EXPECT, which indicates | |
477 | that the compiler supports __builtin_expect(exp,c). You may use | |
478 | __builtin_expect to provide the compiler with branch prediction | |
479 | information. | |
480 | ||
781b178c JH |
481 | d_bzero (d_bzero.U): |
482 | This variable conditionally defines the HAS_BZERO symbol if | |
483 | the bzero() routine is available to set memory to 0. | |
484 | ||
a2d23ec2 MB |
485 | d_c99_variadic_macros (d_c99_variadic.U): |
486 | This variable conditionally defines the HAS_C99_VARIADIC_MACROS | |
487 | symbol, which indicates to the C program that C99 variadic macros | |
488 | are available. | |
489 | ||
781b178c JH |
490 | d_casti32 (d_casti32.U): |
491 | This variable conditionally defines CASTI32, which indicates | |
492 | whether the C compiler can cast large floats to 32-bit ints. | |
493 | ||
494 | d_castneg (d_castneg.U): | |
495 | This variable conditionally defines CASTNEG, which indicates | |
496 | wether the C compiler can cast negative float to unsigned. | |
497 | ||
498 | d_charvspr (d_vprintf.U): | |
499 | This variable conditionally defines CHARVSPRINTF if this system | |
500 | has vsprintf returning type (char*). The trend seems to be to | |
501 | declare it as "int vsprintf()". | |
502 | ||
503 | d_chown (d_chown.U): | |
504 | This variable conditionally defines the HAS_CHOWN symbol, which | |
505 | indicates to the C program that the chown() routine is available. | |
506 | ||
507 | d_chroot (d_chroot.U): | |
508 | This variable conditionally defines the HAS_CHROOT symbol, which | |
509 | indicates to the C program that the chroot() routine is available. | |
510 | ||
511 | d_chsize (d_chsize.U): | |
512 | This variable conditionally defines the CHSIZE symbol, which | |
513 | indicates to the C program that the chsize() routine is available | |
514 | to truncate files. You might need a -lx to get this routine. | |
515 | ||
758a5d79 JH |
516 | d_class (d_class.U): |
517 | This variable conditionally defines the HAS_CLASS symbol, which | |
518 | indicates to the C program that the class() routine is available. | |
519 | ||
b0a2e8e6 MB |
520 | d_clearenv (d_clearenv.U): |
521 | This variable conditionally defines the HAS_CLEARENV symbol, which | |
522 | indicates to the C program that the clearenv () routine is available. | |
523 | ||
781b178c JH |
524 | d_closedir (d_closedir.U): |
525 | This variable conditionally defines HAS_CLOSEDIR if closedir() is | |
526 | available. | |
527 | ||
4e0554ec JH |
528 | d_cmsghdr_s (d_cmsghdr_s.U): |
529 | This variable conditionally defines the HAS_STRUCT_CMSGHDR symbol, | |
530 | which indicates that the struct cmsghdr is supported. | |
531 | ||
781b178c JH |
532 | d_const (d_const.U): |
533 | This variable conditionally defines the HASCONST symbol, which | |
534 | indicates to the C program that this C compiler knows about the | |
535 | const type. | |
536 | ||
5c567d7d JH |
537 | d_copysignl (d_copysignl.U): |
538 | This variable conditionally defines the HAS_COPYSIGNL symbol, which | |
539 | indicates to the C program that the copysignl() routine is available. | |
540 | If aintl is also present we can emulate modfl. | |
541 | ||
f244a502 JH |
542 | d_cplusplus (d_cplusplus.U): |
543 | This variable conditionally defines the USE_CPLUSPLUS symbol, which | |
544 | indicates that a C++ compiler was used to compiled Perl and will be | |
545 | used to compile extensions. | |
546 | ||
781b178c JH |
547 | d_crypt (d_crypt.U): |
548 | This variable conditionally defines the CRYPT symbol, which | |
549 | indicates to the C program that the crypt() routine is available | |
550 | to encrypt passwords and the like. | |
551 | ||
10bc17b6 JH |
552 | d_crypt_r (d_crypt_r.U): |
553 | This variable conditionally defines the HAS_CRYPT_R symbol, | |
554 | which indicates to the C program that the crypt_r() | |
555 | routine is available. | |
556 | ||
781b178c JH |
557 | d_csh (d_csh.U): |
558 | This variable conditionally defines the CSH symbol, which | |
559 | indicates to the C program that the C-shell exists. | |
560 | ||
066e7355 MB |
561 | d_ctermid (d_ctermid.U): |
562 | This variable conditionally defines CTERMID if ctermid() is | |
563 | available to generate filename for terminal. | |
564 | ||
10bc17b6 JH |
565 | d_ctermid_r (d_ctermid_r.U): |
566 | This variable conditionally defines the HAS_CTERMID_R symbol, | |
567 | which indicates to the C program that the ctermid_r() | |
568 | routine is available. | |
569 | ||
570 | d_ctime_r (d_ctime_r.U): | |
571 | This variable conditionally defines the HAS_CTIME_R symbol, | |
572 | which indicates to the C program that the ctime_r() | |
573 | routine is available. | |
574 | ||
781b178c JH |
575 | d_cuserid (d_cuserid.U): |
576 | This variable conditionally defines the HAS_CUSERID symbol, which | |
577 | indicates to the C program that the cuserid() routine is available | |
578 | to get character login names. | |
579 | ||
580 | d_dbl_dig (d_dbl_dig.U): | |
581 | This variable conditionally defines d_dbl_dig if this system's | |
582 | header files provide DBL_DIG, which is the number of significant | |
583 | digits in a double precision number. | |
584 | ||
5af95cda JH |
585 | d_dbminitproto (d_dbminitproto.U): |
586 | This variable conditionally defines the HAS_DBMINIT_PROTO symbol, | |
587 | which indicates to the C program that the system provides | |
588 | a prototype for the dbminit() function. Otherwise, it is | |
589 | up to the program to supply one. | |
590 | ||
781b178c JH |
591 | d_difftime (d_difftime.U): |
592 | This variable conditionally defines the HAS_DIFFTIME symbol, which | |
593 | indicates to the C program that the difftime() routine is available. | |
594 | ||
066e7355 | 595 | d_dir_dd_fd (d_dir_dd_fd.U): |
de52168c SP |
596 | This variable conditionally defines the HAS_DIR_DD_FD symbol, which |
597 | indicates that the DIR directory stream type contains a member | |
598 | variable called dd_fd. | |
599 | ||
428dc699 JH |
600 | d_dirfd (d_dirfd.U): |
601 | This variable conditionally defines the HAS_DIRFD constant, | |
602 | which indicates to the C program that dirfd() is available | |
603 | to return the file descriptor of a directory stream. | |
604 | ||
781b178c JH |
605 | d_dirnamlen (i_dirent.U): |
606 | This variable conditionally defines DIRNAMLEN, which indicates | |
607 | to the C program that the length of directory entry names is | |
608 | provided by a d_namelen field. | |
609 | ||
610 | d_dlerror (d_dlerror.U): | |
611 | This variable conditionally defines the HAS_DLERROR symbol, which | |
612 | indicates to the C program that the dlerror() routine is available. | |
613 | ||
614 | d_dlopen (d_dlopen.U): | |
615 | This variable conditionally defines the HAS_DLOPEN symbol, which | |
616 | indicates to the C program that the dlopen() routine is available. | |
617 | ||
618 | d_dlsymun (d_dlsymun.U): | |
619 | This variable conditionally defines DLSYM_NEEDS_UNDERSCORE, which | |
620 | indicates that we need to prepend an underscore to the symbol | |
621 | name before calling dlsym(). | |
622 | ||
623 | d_dosuid (d_dosuid.U): | |
624 | This variable conditionally defines the symbol DOSUID, which | |
625 | tells the C program that it should insert setuid emulation code | |
626 | on hosts which have setuid #! scripts disabled. | |
627 | ||
10bc17b6 JH |
628 | d_drand48_r (d_drand48_r.U): |
629 | This variable conditionally defines the HAS_DRAND48_R symbol, | |
630 | which indicates to the C program that the drand48_r() | |
631 | routine is available. | |
632 | ||
781b178c JH |
633 | d_drand48proto (d_drand48proto.U): |
634 | This variable conditionally defines the HAS_DRAND48_PROTO symbol, | |
635 | which indicates to the C program that the system provides | |
636 | a prototype for the drand48() function. Otherwise, it is | |
637 | up to the program to supply one. | |
638 | ||
639 | d_dup2 (d_dup2.U): | |
640 | This variable conditionally defines HAS_DUP2 if dup2() is | |
641 | available to duplicate file descriptors. | |
642 | ||
643 | d_eaccess (d_eaccess.U): | |
644 | This variable conditionally defines the HAS_EACCESS symbol, which | |
645 | indicates to the C program that the eaccess() routine is available. | |
646 | ||
647 | d_endgrent (d_endgrent.U): | |
648 | This variable conditionally defines the HAS_ENDGRENT symbol, which | |
649 | indicates to the C program that the endgrent() routine is available | |
650 | for sequential access of the group database. | |
651 | ||
10bc17b6 JH |
652 | d_endgrent_r (d_endgrent_r.U): |
653 | This variable conditionally defines the HAS_ENDGRENT_R symbol, | |
654 | which indicates to the C program that the endgrent_r() | |
655 | routine is available. | |
656 | ||
781b178c JH |
657 | d_endhent (d_endhent.U): |
658 | This variable conditionally defines HAS_ENDHOSTENT if endhostent() is | |
659 | available to close whatever was being used for host queries. | |
660 | ||
10bc17b6 JH |
661 | d_endhostent_r (d_endhostent_r.U): |
662 | This variable conditionally defines the HAS_ENDHOSTENT_R symbol, | |
663 | which indicates to the C program that the endhostent_r() | |
664 | routine is available. | |
665 | ||
781b178c JH |
666 | d_endnent (d_endnent.U): |
667 | This variable conditionally defines HAS_ENDNETENT if endnetent() is | |
668 | available to close whatever was being used for network queries. | |
669 | ||
10bc17b6 JH |
670 | d_endnetent_r (d_endnetent_r.U): |
671 | This variable conditionally defines the HAS_ENDNETENT_R symbol, | |
672 | which indicates to the C program that the endnetent_r() | |
673 | routine is available. | |
674 | ||
781b178c JH |
675 | d_endpent (d_endpent.U): |
676 | This variable conditionally defines HAS_ENDPROTOENT if endprotoent() is | |
677 | available to close whatever was being used for protocol queries. | |
678 | ||
10bc17b6 JH |
679 | d_endprotoent_r (d_endprotoent_r.U): |
680 | This variable conditionally defines the HAS_ENDPROTOENT_R symbol, | |
681 | which indicates to the C program that the endprotoent_r() | |
682 | routine is available. | |
683 | ||
781b178c JH |
684 | d_endpwent (d_endpwent.U): |
685 | This variable conditionally defines the HAS_ENDPWENT symbol, which | |
686 | indicates to the C program that the endpwent() routine is available | |
687 | for sequential access of the passwd database. | |
688 | ||
10bc17b6 JH |
689 | d_endpwent_r (d_endpwent_r.U): |
690 | This variable conditionally defines the HAS_ENDPWENT_R symbol, | |
691 | which indicates to the C program that the endpwent_r() | |
692 | routine is available. | |
693 | ||
781b178c JH |
694 | d_endsent (d_endsent.U): |
695 | This variable conditionally defines HAS_ENDSERVENT if endservent() is | |
696 | available to close whatever was being used for service queries. | |
697 | ||
10bc17b6 JH |
698 | d_endservent_r (d_endservent_r.U): |
699 | This variable conditionally defines the HAS_ENDSERVENT_R symbol, | |
700 | which indicates to the C program that the endservent_r() | |
701 | routine is available. | |
702 | ||
781b178c JH |
703 | d_eofnblk (nblock_io.U): |
704 | This variable conditionally defines EOF_NONBLOCK if EOF can be seen | |
705 | when reading from a non-blocking I/O source. | |
706 | ||
707 | d_eunice (Guess.U): | |
708 | This variable conditionally defines the symbols EUNICE and VAX, which | |
709 | alerts the C program that it must deal with ideosyncracies of VMS. | |
710 | ||
4d54317a JH |
711 | d_faststdio (d_faststdio.U): |
712 | This variable conditionally defines the HAS_FAST_STDIO symbol, | |
713 | which indicates to the C program that the "fast stdio" is available | |
714 | to manipulate the stdio buffers directly. | |
715 | ||
b363b713 JH |
716 | d_fchdir (d_fchdir.U): |
717 | This variable conditionally defines the HAS_FCHDIR symbol, which | |
718 | indicates to the C program that the fchdir() routine is available. | |
719 | ||
781b178c JH |
720 | d_fchmod (d_fchmod.U): |
721 | This variable conditionally defines the HAS_FCHMOD symbol, which | |
722 | indicates to the C program that the fchmod() routine is available | |
723 | to change mode of opened files. | |
724 | ||
725 | d_fchown (d_fchown.U): | |
726 | This variable conditionally defines the HAS_FCHOWN symbol, which | |
727 | indicates to the C program that the fchown() routine is available | |
728 | to change ownership of opened files. | |
729 | ||
730 | d_fcntl (d_fcntl.U): | |
731 | This variable conditionally defines the HAS_FCNTL symbol, and indicates | |
732 | whether the fcntl() function exists | |
733 | ||
9d9004a9 AD |
734 | d_fcntl_can_lock (d_fcntl_can_lock.U): |
735 | This variable conditionally defines the FCNTL_CAN_LOCK symbol | |
736 | and indicates whether file locking with fcntl() works. | |
737 | ||
781b178c JH |
738 | d_fd_macros (d_fd_set.U): |
739 | This variable contains the eventual value of the HAS_FD_MACROS symbol, | |
740 | which indicates if your C compiler knows about the macros which | |
741 | manipulate an fd_set. | |
742 | ||
743 | d_fd_set (d_fd_set.U): | |
744 | This variable contains the eventual value of the HAS_FD_SET symbol, | |
745 | which indicates if your C compiler knows about the fd_set typedef. | |
746 | ||
747 | d_fds_bits (d_fd_set.U): | |
748 | This variable contains the eventual value of the HAS_FDS_BITS symbol, | |
749 | which indicates if your fd_set typedef contains the fds_bits member. | |
750 | If you have an fd_set typedef, but the dweebs who installed it did | |
751 | a half-fast job and neglected to provide the macros to manipulate | |
752 | an fd_set, HAS_FDS_BITS will let us know how to fix the gaffe. | |
753 | ||
781b178c JH |
754 | d_fgetpos (d_fgetpos.U): |
755 | This variable conditionally defines HAS_FGETPOS if fgetpos() is | |
756 | available to get the file position indicator. | |
757 | ||
758a5d79 JH |
758 | d_finite (d_finite.U): |
759 | This variable conditionally defines the HAS_FINITE symbol, which | |
760 | indicates to the C program that the finite() routine is available. | |
761 | ||
762 | d_finitel (d_finitel.U): | |
763 | This variable conditionally defines the HAS_FINITEL symbol, which | |
764 | indicates to the C program that the finitel() routine is available. | |
765 | ||
781b178c JH |
766 | d_flexfnam (d_flexfnam.U): |
767 | This variable conditionally defines the FLEXFILENAMES symbol, which | |
768 | indicates that the system supports filenames longer than 14 characters. | |
769 | ||
781b178c JH |
770 | d_flock (d_flock.U): |
771 | This variable conditionally defines HAS_FLOCK if flock() is | |
772 | available to do file locking. | |
773 | ||
5af95cda JH |
774 | d_flockproto (d_flockproto.U): |
775 | This variable conditionally defines the HAS_FLOCK_PROTO symbol, | |
776 | which indicates to the C program that the system provides | |
777 | a prototype for the flock() function. Otherwise, it is | |
778 | up to the program to supply one. | |
779 | ||
781b178c JH |
780 | d_fork (d_fork.U): |
781 | This variable conditionally defines the HAS_FORK symbol, which | |
782 | indicates to the C program that the fork() routine is available. | |
783 | ||
758a5d79 JH |
784 | d_fp_class (d_fp_class.U): |
785 | This variable conditionally defines the HAS_FP_CLASS symbol, which | |
786 | indicates to the C program that the fp_class() routine is available. | |
787 | ||
781b178c JH |
788 | d_fpathconf (d_pathconf.U): |
789 | This variable conditionally defines the HAS_FPATHCONF symbol, which | |
790 | indicates to the C program that the pathconf() routine is available | |
791 | to determine file-system related limits and options associated | |
792 | with a given open file descriptor. | |
793 | ||
758a5d79 JH |
794 | d_fpclass (d_fpclass.U): |
795 | This variable conditionally defines the HAS_FPCLASS symbol, which | |
796 | indicates to the C program that the fpclass() routine is available. | |
797 | ||
798 | d_fpclassify (d_fpclassify.U): | |
799 | This variable conditionally defines the HAS_FPCLASSIFY symbol, which | |
800 | indicates to the C program that the fpclassify() routine is available. | |
801 | ||
802 | d_fpclassl (d_fpclassl.U): | |
803 | This variable conditionally defines the HAS_FPCLASSL symbol, which | |
804 | indicates to the C program that the fpclassl() routine is available. | |
805 | ||
c890dc6c | 806 | d_fpos64_t (d_fpos64_t.U): |
ca24dfc6 | 807 | This symbol will be defined if the C compiler supports fpos64_t. |
781b178c | 808 | |
a3540c92 JH |
809 | d_frexpl (d_frexpl.U): |
810 | This variable conditionally defines the HAS_FREXPL symbol, which | |
811 | indicates to the C program that the frexpl() routine is available. | |
812 | ||
ad27e871 | 813 | d_fs_data_s (d_fs_data_s.U): |
0545a864 JH |
814 | This variable conditionally defines the HAS_STRUCT_FS_DATA symbol, |
815 | which indicates that the struct fs_data is supported. | |
816 | ||
781b178c JH |
817 | d_fseeko (d_fseeko.U): |
818 | This variable conditionally defines the HAS_FSEEKO symbol, which | |
819 | indicates to the C program that the fseeko() routine is available. | |
820 | ||
781b178c JH |
821 | d_fsetpos (d_fsetpos.U): |
822 | This variable conditionally defines HAS_FSETPOS if fsetpos() is | |
823 | available to set the file position indicator. | |
824 | ||
0545a864 | 825 | d_fstatfs (d_fstatfs.U): |
781b178c JH |
826 | This variable conditionally defines the HAS_FSTATFS symbol, which |
827 | indicates to the C program that the fstatfs() routine is available. | |
828 | ||
829 | d_fstatvfs (d_statvfs.U): | |
830 | This variable conditionally defines the HAS_FSTATVFS symbol, which | |
831 | indicates to the C program that the fstatvfs() routine is available. | |
832 | ||
411ab01c JH |
833 | d_fsync (d_fsync.U): |
834 | This variable conditionally defines the HAS_FSYNC symbol, which | |
835 | indicates to the C program that the fsync() routine is available. | |
836 | ||
781b178c JH |
837 | d_ftello (d_ftello.U): |
838 | This variable conditionally defines the HAS_FTELLO symbol, which | |
839 | indicates to the C program that the ftello() routine is available. | |
840 | ||
841 | d_ftime (d_ftime.U): | |
842 | This variable conditionally defines the HAS_FTIME symbol, which indicates | |
843 | that the ftime() routine exists. The ftime() routine is basically | |
844 | a sub-second accuracy clock. | |
845 | ||
df4c34dc | 846 | d_futimes (d_futimes.U): |
dc814df1 MB |
847 | This variable conditionally defines the HAS_FUTIMES symbol, which |
848 | indicates to the C program that the futimes() routine is available. | |
849 | ||
4d54317a JH |
850 | d_Gconvert (d_gconvert.U): |
851 | This variable holds what Gconvert is defined as to convert | |
852 | floating point numbers into strings. By default, Configure | |
853 | sets this macro to use the first of gconvert, gcvt, or sprintf | |
854 | that pass sprintf-%g-like behaviour tests. If perl is using | |
855 | long doubles, the macro uses the first of the following | |
856 | functions that pass Configure's tests: qgcvt, sprintf (if | |
857 | Configure knows how to make sprintf format long doubles--see | |
635aebb7 AL |
858 | sPRIgldbl), gconvert, gcvt, and sprintf (casting to double). |
859 | The gconvert_preference and gconvert_ld_preference variables | |
4d54317a | 860 | can be used to alter Configure's preferences, for doubles and |
635aebb7 AL |
861 | long doubles, respectively. If present, they contain a |
862 | space-separated list of one or more of the above function | |
4d54317a JH |
863 | names in the order they should be tried. |
864 | ||
865 | d_Gconvert may be set to override Configure with a platform- | |
866 | specific function. If this function expects a double, a | |
867 | different value may need to be set by the uselongdouble.cbu | |
868 | call-back unit so that long doubles can be formatted without | |
869 | loss of precision. | |
870 | ||
49dabb45 JH |
871 | d_getcwd (d_getcwd.U): |
872 | This variable conditionally defines the HAS_GETCWD symbol, which | |
873 | indicates to the C program that the getcwd() routine is available | |
874 | to get the current working directory. | |
875 | ||
3813c136 JH |
876 | d_getespwnam (d_getespwnam.U): |
877 | This variable conditionally defines HAS_GETESPWNAM if getespwnam() is | |
878 | available to retrieve enchanced (shadow) password entries by name. | |
879 | ||
c890dc6c JH |
880 | d_getfsstat (d_getfsstat.U): |
881 | This variable conditionally defines the HAS_GETFSSTAT symbol, which | |
882 | indicates to the C program that the getfsstat() routine is available. | |
883 | ||
781b178c JH |
884 | d_getgrent (d_getgrent.U): |
885 | This variable conditionally defines the HAS_GETGRENT symbol, which | |
886 | indicates to the C program that the getgrent() routine is available | |
887 | for sequential access of the group database. | |
888 | ||
10bc17b6 JH |
889 | d_getgrent_r (d_getgrent_r.U): |
890 | This variable conditionally defines the HAS_GETGRENT_R symbol, | |
891 | which indicates to the C program that the getgrent_r() | |
892 | routine is available. | |
893 | ||
894 | d_getgrgid_r (d_getgrgid_r.U): | |
895 | This variable conditionally defines the HAS_GETGRGID_R symbol, | |
896 | which indicates to the C program that the getgrgid_r() | |
897 | routine is available. | |
898 | ||
899 | d_getgrnam_r (d_getgrnam_r.U): | |
900 | This variable conditionally defines the HAS_GETGRNAM_R symbol, | |
901 | which indicates to the C program that the getgrnam_r() | |
902 | routine is available. | |
903 | ||
781b178c JH |
904 | d_getgrps (d_getgrps.U): |
905 | This variable conditionally defines the HAS_GETGROUPS symbol, which | |
906 | indicates to the C program that the getgroups() routine is available | |
907 | to get the list of process groups. | |
908 | ||
909 | d_gethbyaddr (d_gethbyad.U): | |
910 | This variable conditionally defines the HAS_GETHOSTBYADDR symbol, which | |
911 | indicates to the C program that the gethostbyaddr() routine is available | |
912 | to look up hosts by their IP addresses. | |
913 | ||
914 | d_gethbyname (d_gethbynm.U): | |
915 | This variable conditionally defines the HAS_GETHOSTBYNAME symbol, which | |
916 | indicates to the C program that the gethostbyname() routine is available | |
917 | to look up host names in some data base or other. | |
918 | ||
919 | d_gethent (d_gethent.U): | |
920 | This variable conditionally defines HAS_GETHOSTENT if gethostent() is | |
921 | available to look up host names in some data base or another. | |
922 | ||
923 | d_gethname (d_gethname.U): | |
924 | This variable conditionally defines the HAS_GETHOSTNAME symbol, which | |
925 | indicates to the C program that the gethostname() routine may be | |
926 | used to derive the host name. | |
927 | ||
10bc17b6 JH |
928 | d_gethostbyaddr_r (d_gethostbyaddr_r.U): |
929 | This variable conditionally defines the HAS_GETHOSTBYADDR_R symbol, | |
930 | which indicates to the C program that the gethostbyaddr_r() | |
931 | routine is available. | |
932 | ||
933 | d_gethostbyname_r (d_gethostbyname_r.U): | |
934 | This variable conditionally defines the HAS_GETHOSTBYNAME_R symbol, | |
935 | which indicates to the C program that the gethostbyname_r() | |
936 | routine is available. | |
937 | ||
938 | d_gethostent_r (d_gethostent_r.U): | |
939 | This variable conditionally defines the HAS_GETHOSTENT_R symbol, | |
940 | which indicates to the C program that the gethostent_r() | |
941 | routine is available. | |
942 | ||
781b178c JH |
943 | d_gethostprotos (d_gethostprotos.U): |
944 | This variable conditionally defines the HAS_GETHOST_PROTOS symbol, | |
945 | which indicates to the C program that <netdb.h> supplies | |
635aebb7 | 946 | prototypes for the various gethost*() functions. |
781b178c JH |
947 | See also netdbtype.U for probing for various netdb types. |
948 | ||
4e0554ec JH |
949 | d_getitimer (d_getitimer.U): |
950 | This variable conditionally defines the HAS_GETITIMER symbol, which | |
951 | indicates to the C program that the getitimer() routine is available. | |
952 | ||
781b178c JH |
953 | d_getlogin (d_getlogin.U): |
954 | This variable conditionally defines the HAS_GETLOGIN symbol, which | |
955 | indicates to the C program that the getlogin() routine is available | |
956 | to get the login name. | |
957 | ||
10bc17b6 JH |
958 | d_getlogin_r (d_getlogin_r.U): |
959 | This variable conditionally defines the HAS_GETLOGIN_R symbol, | |
960 | which indicates to the C program that the getlogin_r() | |
961 | routine is available. | |
962 | ||
ad27e871 JH |
963 | d_getmnt (d_getmnt.U): |
964 | This variable conditionally defines the HAS_GETMNT symbol, which | |
965 | indicates to the C program that the getmnt() routine is available | |
966 | to retrieve one or more mount info blocks by filename. | |
967 | ||
781b178c JH |
968 | d_getmntent (d_getmntent.U): |
969 | This variable conditionally defines the HAS_GETMNTENT symbol, which | |
970 | indicates to the C program that the getmntent() routine is available | |
0617aed7 | 971 | to iterate through mounted files to get their mount info. |
781b178c JH |
972 | |
973 | d_getnbyaddr (d_getnbyad.U): | |
974 | This variable conditionally defines the HAS_GETNETBYADDR symbol, which | |
975 | indicates to the C program that the getnetbyaddr() routine is available | |
976 | to look up networks by their IP addresses. | |
977 | ||
978 | d_getnbyname (d_getnbynm.U): | |
979 | This variable conditionally defines the HAS_GETNETBYNAME symbol, which | |
980 | indicates to the C program that the getnetbyname() routine is available | |
981 | to look up networks by their names. | |
982 | ||
983 | d_getnent (d_getnent.U): | |
984 | This variable conditionally defines HAS_GETNETENT if getnetent() is | |
985 | available to look up network names in some data base or another. | |
986 | ||
10bc17b6 JH |
987 | d_getnetbyaddr_r (d_getnetbyaddr_r.U): |
988 | This variable conditionally defines the HAS_GETNETBYADDR_R symbol, | |
989 | which indicates to the C program that the getnetbyaddr_r() | |
990 | routine is available. | |
991 | ||
992 | d_getnetbyname_r (d_getnetbyname_r.U): | |
993 | This variable conditionally defines the HAS_GETNETBYNAME_R symbol, | |
994 | which indicates to the C program that the getnetbyname_r() | |
995 | routine is available. | |
996 | ||
997 | d_getnetent_r (d_getnetent_r.U): | |
998 | This variable conditionally defines the HAS_GETNETENT_R symbol, | |
999 | which indicates to the C program that the getnetent_r() | |
1000 | routine is available. | |
1001 | ||
781b178c JH |
1002 | d_getnetprotos (d_getnetprotos.U): |
1003 | This variable conditionally defines the HAS_GETNET_PROTOS symbol, | |
1004 | which indicates to the C program that <netdb.h> supplies | |
635aebb7 | 1005 | prototypes for the various getnet*() functions. |
781b178c JH |
1006 | See also netdbtype.U for probing for various netdb types. |
1007 | ||
0c0643d0 JH |
1008 | d_getpagsz (d_getpagsz.U): |
1009 | This variable conditionally defines HAS_GETPAGESIZE if getpagesize() | |
1010 | is available to get the system page size. | |
1011 | ||
781b178c | 1012 | d_getpbyname (d_getprotby.U): |
635aebb7 AL |
1013 | This variable conditionally defines the HAS_GETPROTOBYNAME |
1014 | symbol, which indicates to the C program that the | |
781b178c JH |
1015 | getprotobyname() routine is available to look up protocols |
1016 | by their name. | |
1017 | ||
1018 | d_getpbynumber (d_getprotby.U): | |
635aebb7 AL |
1019 | This variable conditionally defines the HAS_GETPROTOBYNUMBER |
1020 | symbol, which indicates to the C program that the | |
781b178c JH |
1021 | getprotobynumber() routine is available to look up protocols |
1022 | by their number. | |
1023 | ||
1024 | d_getpent (d_getpent.U): | |
1025 | This variable conditionally defines HAS_GETPROTOENT if getprotoent() is | |
1026 | available to look up protocols in some data base or another. | |
1027 | ||
1028 | d_getpgid (d_getpgid.U): | |
1029 | This variable conditionally defines the HAS_GETPGID symbol, which | |
1030 | indicates to the C program that the getpgid(pid) function | |
1031 | is available to get the process group id. | |
1032 | ||
df4c34dc MB |
1033 | d_getpgrp (d_getpgrp.U): |
1034 | This variable conditionally defines HAS_GETPGRP if getpgrp() is | |
1035 | available to get the current process group. | |
1036 | ||
781b178c JH |
1037 | d_getpgrp2 (d_getpgrp2.U): |
1038 | This variable conditionally defines the HAS_GETPGRP2 symbol, which | |
1039 | indicates to the C program that the getpgrp2() (as in DG/UX) routine | |
1040 | is available to get the current process group. | |
1041 | ||
781b178c JH |
1042 | d_getppid (d_getppid.U): |
1043 | This variable conditionally defines the HAS_GETPPID symbol, which | |
1044 | indicates to the C program that the getppid() routine is available | |
1045 | to get the parent process ID. | |
1046 | ||
1047 | d_getprior (d_getprior.U): | |
1048 | This variable conditionally defines HAS_GETPRIORITY if getpriority() | |
1049 | is available to get a process's priority. | |
1050 | ||
10bc17b6 JH |
1051 | d_getprotobyname_r (d_getprotobyname_r.U): |
1052 | This variable conditionally defines the HAS_GETPROTOBYNAME_R symbol, | |
1053 | which indicates to the C program that the getprotobyname_r() | |
1054 | routine is available. | |
1055 | ||
1056 | d_getprotobynumber_r (d_getprotobynumber_r.U): | |
1057 | This variable conditionally defines the HAS_GETPROTOBYNUMBER_R symbol, | |
1058 | which indicates to the C program that the getprotobynumber_r() | |
1059 | routine is available. | |
1060 | ||
1061 | d_getprotoent_r (d_getprotoent_r.U): | |
1062 | This variable conditionally defines the HAS_GETPROTOENT_R symbol, | |
1063 | which indicates to the C program that the getprotoent_r() | |
1064 | routine is available. | |
1065 | ||
781b178c JH |
1066 | d_getprotoprotos (d_getprotoprotos.U): |
1067 | This variable conditionally defines the HAS_GETPROTO_PROTOS symbol, | |
1068 | which indicates to the C program that <netdb.h> supplies | |
635aebb7 | 1069 | prototypes for the various getproto*() functions. |
781b178c JH |
1070 | See also netdbtype.U for probing for various netdb types. |
1071 | ||
3813c136 JH |
1072 | d_getprpwnam (d_getprpwnam.U): |
1073 | This variable conditionally defines HAS_GETPRPWNAM if getprpwnam() is | |
1074 | available to retrieve protected (shadow) password entries by name. | |
1075 | ||
781b178c JH |
1076 | d_getpwent (d_getpwent.U): |
1077 | This variable conditionally defines the HAS_GETPWENT symbol, which | |
1078 | indicates to the C program that the getpwent() routine is available | |
1079 | for sequential access of the passwd database. | |
1080 | ||
10bc17b6 JH |
1081 | d_getpwent_r (d_getpwent_r.U): |
1082 | This variable conditionally defines the HAS_GETPWENT_R symbol, | |
1083 | which indicates to the C program that the getpwent_r() | |
1084 | routine is available. | |
1085 | ||
1086 | d_getpwnam_r (d_getpwnam_r.U): | |
1087 | This variable conditionally defines the HAS_GETPWNAM_R symbol, | |
1088 | which indicates to the C program that the getpwnam_r() | |
1089 | routine is available. | |
1090 | ||
1091 | d_getpwuid_r (d_getpwuid_r.U): | |
1092 | This variable conditionally defines the HAS_GETPWUID_R symbol, | |
1093 | which indicates to the C program that the getpwuid_r() | |
1094 | routine is available. | |
1095 | ||
781b178c | 1096 | d_getsbyname (d_getsrvby.U): |
635aebb7 AL |
1097 | This variable conditionally defines the HAS_GETSERVBYNAME |
1098 | symbol, which indicates to the C program that the | |
781b178c JH |
1099 | getservbyname() routine is available to look up services |
1100 | by their name. | |
1101 | ||
1102 | d_getsbyport (d_getsrvby.U): | |
635aebb7 AL |
1103 | This variable conditionally defines the HAS_GETSERVBYPORT |
1104 | symbol, which indicates to the C program that the | |
781b178c JH |
1105 | getservbyport() routine is available to look up services |
1106 | by their port. | |
1107 | ||
1108 | d_getsent (d_getsent.U): | |
1109 | This variable conditionally defines HAS_GETSERVENT if getservent() is | |
1110 | available to look up network services in some data base or another. | |
1111 | ||
10bc17b6 JH |
1112 | d_getservbyname_r (d_getservbyname_r.U): |
1113 | This variable conditionally defines the HAS_GETSERVBYNAME_R symbol, | |
1114 | which indicates to the C program that the getservbyname_r() | |
1115 | routine is available. | |
1116 | ||
1117 | d_getservbyport_r (d_getservbyport_r.U): | |
1118 | This variable conditionally defines the HAS_GETSERVBYPORT_R symbol, | |
1119 | which indicates to the C program that the getservbyport_r() | |
1120 | routine is available. | |
1121 | ||
1122 | d_getservent_r (d_getservent_r.U): | |
1123 | This variable conditionally defines the HAS_GETSERVENT_R symbol, | |
1124 | which indicates to the C program that the getservent_r() | |
1125 | routine is available. | |
1126 | ||
781b178c JH |
1127 | d_getservprotos (d_getservprotos.U): |
1128 | This variable conditionally defines the HAS_GETSERV_PROTOS symbol, | |
1129 | which indicates to the C program that <netdb.h> supplies | |
635aebb7 | 1130 | prototypes for the various getserv*() functions. |
781b178c JH |
1131 | See also netdbtype.U for probing for various netdb types. |
1132 | ||
781b178c JH |
1133 | d_getspnam (d_getspnam.U): |
1134 | This variable conditionally defines HAS_GETSPNAM if getspnam() is | |
1135 | available to retrieve SysV shadow password entries by name. | |
1136 | ||
10bc17b6 JH |
1137 | d_getspnam_r (d_getspnam_r.U): |
1138 | This variable conditionally defines the HAS_GETSPNAM_R symbol, | |
1139 | which indicates to the C program that the getspnam_r() | |
1140 | routine is available. | |
1141 | ||
781b178c JH |
1142 | d_gettimeod (d_ftime.U): |
1143 | This variable conditionally defines the HAS_GETTIMEOFDAY symbol, which | |
1144 | indicates that the gettimeofday() system call exists (to obtain a | |
1145 | sub-second accuracy clock). You should probably include <sys/resource.h>. | |
1146 | ||
10bc17b6 JH |
1147 | d_gmtime_r (d_gmtime_r.U): |
1148 | This variable conditionally defines the HAS_GMTIME_R symbol, | |
1149 | which indicates to the C program that the gmtime_r() | |
1150 | routine is available. | |
1151 | ||
781b178c JH |
1152 | d_gnulibc (d_gnulibc.U): |
1153 | Defined if we're dealing with the GNU C Library. | |
1154 | ||
1155 | d_grpasswd (i_grp.U): | |
1156 | This variable conditionally defines GRPASSWD, which indicates | |
1157 | that struct group in <grp.h> contains gr_passwd. | |
1158 | ||
1159 | d_hasmntopt (d_hasmntopt.U): | |
1160 | This variable conditionally defines the HAS_HASMNTOPT symbol, which | |
1161 | indicates to the C program that the hasmntopt() routine is available | |
1162 | to query the mount options of file systems. | |
1163 | ||
1164 | d_htonl (d_htonl.U): | |
1165 | This variable conditionally defines HAS_HTONL if htonl() and its | |
1166 | friends are available to do network order byte swapping. | |
1167 | ||
5c567d7d JH |
1168 | d_ilogbl (d_ilogbl.U): |
1169 | This variable conditionally defines the HAS_ILOGBL symbol, which | |
1170 | indicates to the C program that the ilogbl() routine is available. | |
1171 | If scalbnl is also present we can emulate frexpl. | |
1172 | ||
c95d0e17 GA |
1173 | d_inc_version_list (inc_version_list.U): |
1174 | This variable conditionally defines PERL_INC_VERSION_LIST. | |
1175 | It is set to undef when PERL_INC_VERSION_LIST is empty. | |
1176 | ||
781b178c JH |
1177 | d_index (d_strchr.U): |
1178 | This variable conditionally defines HAS_INDEX if index() and | |
1179 | rindex() are available for string searching. | |
1180 | ||
1181 | d_inetaton (d_inetaton.U): | |
1182 | This variable conditionally defines the HAS_INET_ATON symbol, which | |
1183 | indicates to the C program that the inet_aton() function is available | |
1184 | to parse IP address "dotted-quad" strings. | |
1185 | ||
13b3f787 | 1186 | d_int64_t (d_int64_t.U): |
781b178c JH |
1187 | This symbol will be defined if the C compiler supports int64_t. |
1188 | ||
781b178c JH |
1189 | d_isascii (d_isascii.U): |
1190 | This variable conditionally defines the HAS_ISASCII constant, | |
1191 | which indicates to the C program that isascii() is available. | |
1192 | ||
758a5d79 JH |
1193 | d_isfinite (d_isfinite.U): |
1194 | This variable conditionally defines the HAS_ISFINITE symbol, which | |
1195 | indicates to the C program that the isfinite() routine is available. | |
1196 | ||
1197 | d_isinf (d_isinf.U): | |
1198 | This variable conditionally defines the HAS_ISINF symbol, which | |
1199 | indicates to the C program that the isinf() routine is available. | |
1200 | ||
a3540c92 JH |
1201 | d_isnan (d_isnan.U): |
1202 | This variable conditionally defines the HAS_ISNAN symbol, which | |
1203 | indicates to the C program that the isnan() routine is available. | |
1204 | ||
1205 | d_isnanl (d_isnanl.U): | |
1206 | This variable conditionally defines the HAS_ISNANL symbol, which | |
1207 | indicates to the C program that the isnanl() routine is available. | |
1208 | ||
781b178c JH |
1209 | d_killpg (d_killpg.U): |
1210 | This variable conditionally defines the HAS_KILLPG symbol, which | |
1211 | indicates to the C program that the killpg() routine is available | |
1212 | to kill process groups. | |
1213 | ||
1214 | d_lchown (d_lchown.U): | |
1215 | This variable conditionally defines the HAS_LCHOWN symbol, which | |
1216 | indicates to the C program that the lchown() routine is available | |
1217 | to operate on a symbolic link (instead of following the link). | |
1218 | ||
ca24dfc6 LV |
1219 | d_ldbl_dig (d_ldbl_dig.U): |
1220 | This variable conditionally defines d_ldbl_dig if this system's | |
1221 | header files provide LDBL_DIG, which is the number of significant | |
1222 | digits in a long double precision number. | |
1223 | ||
df4c34dc MB |
1224 | d_libm_lib_version (d_libm_lib_version.U): |
1225 | This variable conditionally defines the LIBM_LIB_VERSION symbol, | |
1226 | which indicates to the C program that math.h defines _LIB_VERSION | |
1227 | being available in libm | |
1228 | ||
781b178c JH |
1229 | d_link (d_link.U): |
1230 | This variable conditionally defines HAS_LINK if link() is | |
1231 | available to create hard links. | |
1232 | ||
10bc17b6 JH |
1233 | d_localtime_r (d_localtime_r.U): |
1234 | This variable conditionally defines the HAS_LOCALTIME_R symbol, | |
1235 | which indicates to the C program that the localtime_r() | |
1236 | routine is available. | |
1237 | ||
f025e94b MB |
1238 | d_localtime_r_needs_tzset (d_localtime_r.U): |
1239 | This variable conditionally defines the LOCALTIME_R_NEEDS_TZSET | |
1240 | symbol, which makes us call tzset before localtime_r() | |
1241 | ||
781b178c JH |
1242 | d_locconv (d_locconv.U): |
1243 | This variable conditionally defines HAS_LOCALECONV if localeconv() is | |
1244 | available for numeric and monetary formatting conventions. | |
1245 | ||
781b178c JH |
1246 | d_lockf (d_lockf.U): |
1247 | This variable conditionally defines HAS_LOCKF if lockf() is | |
1248 | available to do file locking. | |
1249 | ||
1250 | d_longdbl (d_longdbl.U): | |
635aebb7 | 1251 | This variable conditionally defines HAS_LONG_DOUBLE if |
781b178c JH |
1252 | the long double type is supported. |
1253 | ||
1254 | d_longlong (d_longlong.U): | |
635aebb7 | 1255 | This variable conditionally defines HAS_LONG_LONG if |
781b178c JH |
1256 | the long long type is supported. |
1257 | ||
c890dc6c JH |
1258 | d_lseekproto (d_lseekproto.U): |
1259 | This variable conditionally defines the HAS_LSEEK_PROTO symbol, | |
1260 | which indicates to the C program that the system provides | |
1261 | a prototype for the lseek() function. Otherwise, it is | |
1262 | up to the program to supply one. | |
1263 | ||
781b178c JH |
1264 | d_lstat (d_lstat.U): |
1265 | This variable conditionally defines HAS_LSTAT if lstat() is | |
1266 | available to do file stats on symbolic links. | |
1267 | ||
792d8dab JH |
1268 | d_madvise (d_madvise.U): |
1269 | This variable conditionally defines HAS_MADVISE if madvise() is | |
1270 | available to map a file into memory. | |
1271 | ||
df4c34dc MB |
1272 | d_malloc_good_size (d_malloc_size.U): |
1273 | This symbol, if defined, indicates that the malloc_good_size | |
7dd121ae MB |
1274 | routine is available for use. |
1275 | ||
df4c34dc MB |
1276 | d_malloc_size (d_malloc_size.U): |
1277 | This symbol, if defined, indicates that the malloc_size | |
7dd121ae MB |
1278 | routine is available for use. |
1279 | ||
781b178c JH |
1280 | d_mblen (d_mblen.U): |
1281 | This variable conditionally defines the HAS_MBLEN symbol, which | |
1282 | indicates to the C program that the mblen() routine is available | |
1283 | to find the number of bytes in a multibye character. | |
1284 | ||
1285 | d_mbstowcs (d_mbstowcs.U): | |
1286 | This variable conditionally defines the HAS_MBSTOWCS symbol, which | |
1287 | indicates to the C program that the mbstowcs() routine is available | |
1288 | to convert a multibyte string into a wide character string. | |
1289 | ||
1290 | d_mbtowc (d_mbtowc.U): | |
1291 | This variable conditionally defines the HAS_MBTOWC symbol, which | |
1292 | indicates to the C program that the mbtowc() routine is available | |
1293 | to convert multibyte to a wide character. | |
1294 | ||
1295 | d_memchr (d_memchr.U): | |
1296 | This variable conditionally defines the HAS_MEMCHR symbol, which | |
1297 | indicates to the C program that the memchr() routine is available | |
1298 | to locate characters within a C string. | |
1299 | ||
1300 | d_memcmp (d_memcmp.U): | |
1301 | This variable conditionally defines the HAS_MEMCMP symbol, which | |
1302 | indicates to the C program that the memcmp() routine is available | |
1303 | to compare blocks of memory. | |
1304 | ||
1305 | d_memcpy (d_memcpy.U): | |
1306 | This variable conditionally defines the HAS_MEMCPY symbol, which | |
1307 | indicates to the C program that the memcpy() routine is available | |
1308 | to copy blocks of memory. | |
1309 | ||
1310 | d_memmove (d_memmove.U): | |
1311 | This variable conditionally defines the HAS_MEMMOVE symbol, which | |
1312 | indicates to the C program that the memmove() routine is available | |
1313 | to copy potentatially overlapping blocks of memory. | |
1314 | ||
1315 | d_memset (d_memset.U): | |
1316 | This variable conditionally defines the HAS_MEMSET symbol, which | |
1317 | indicates to the C program that the memset() routine is available | |
1318 | to set blocks of memory. | |
1319 | ||
1320 | d_mkdir (d_mkdir.U): | |
1321 | This variable conditionally defines the HAS_MKDIR symbol, which | |
1322 | indicates to the C program that the mkdir() routine is available | |
209e5c0a | 1323 | to create directories.. |
781b178c | 1324 | |
fe749a9f JH |
1325 | d_mkdtemp (d_mkdtemp.U): |
1326 | This variable conditionally defines the HAS_MKDTEMP symbol, which | |
1327 | indicates to the C program that the mkdtemp() routine is available | |
1328 | to exclusively create a uniquely named temporary directory. | |
1329 | ||
781b178c JH |
1330 | d_mkfifo (d_mkfifo.U): |
1331 | This variable conditionally defines the HAS_MKFIFO symbol, which | |
1332 | indicates to the C program that the mkfifo() routine is available. | |
1333 | ||
fe749a9f JH |
1334 | d_mkstemp (d_mkstemp.U): |
1335 | This variable conditionally defines the HAS_MKSTEMP symbol, which | |
1336 | indicates to the C program that the mkstemp() routine is available | |
1337 | to exclusively create and open a uniquely named temporary file. | |
1338 | ||
1339 | d_mkstemps (d_mkstemps.U): | |
1340 | This variable conditionally defines the HAS_MKSTEMPS symbol, which | |
1341 | indicates to the C program that the mkstemps() routine is available | |
1342 | to exclusively create and open a uniquely named (with a suffix) | |
1343 | temporary file. | |
1344 | ||
781b178c JH |
1345 | d_mktime (d_mktime.U): |
1346 | This variable conditionally defines the HAS_MKTIME symbol, which | |
1347 | indicates to the C program that the mktime() routine is available. | |
1348 | ||
fe749a9f JH |
1349 | d_mmap (d_mmap.U): |
1350 | This variable conditionally defines HAS_MMAP if mmap() is | |
1351 | available to map a file into memory. | |
1352 | ||
a3540c92 JH |
1353 | d_modfl (d_modfl.U): |
1354 | This variable conditionally defines the HAS_MODFL symbol, which | |
1355 | indicates to the C program that the modfl() routine is available. | |
1356 | ||
e67aeab1 JH |
1357 | d_modfl_pow32_bug (d_modfl.U): |
1358 | This variable conditionally defines the HAS_MODFL_POW32_BUG symbol, | |
1359 | which indicates that modfl() is broken for long doubles >= pow(2, 32). | |
1360 | For example from 4294967303.150000 one would get 4294967302.000000 | |
1361 | and 1.150000. The bug has been seen in certain versions of glibc, | |
1362 | release 2.2.2 is known to be okay. | |
1363 | ||
44b94491 MB |
1364 | d_modflproto (d_modfl.U): |
1365 | This symbol, if defined, indicates that the system provides | |
1366 | a prototype for the modfl() function. Otherwise, it is up | |
1367 | to the program to supply one. C99 says it should be | |
1368 | long double modfl(long double, long double *); | |
1369 | ||
fe749a9f JH |
1370 | d_mprotect (d_mprotect.U): |
1371 | This variable conditionally defines HAS_MPROTECT if mprotect() is | |
1372 | available to modify the access protection of a memory mapped file. | |
1373 | ||
781b178c JH |
1374 | d_msg (d_msg.U): |
1375 | This variable conditionally defines the HAS_MSG symbol, which | |
1376 | indicates that the entire msg*(2) library is present. | |
1377 | ||
1378 | d_msg_ctrunc (d_socket.U): | |
1379 | This variable conditionally defines the HAS_MSG_CTRUNC symbol, | |
1380 | which indicates that the MSG_CTRUNC is available. #ifdef is | |
1381 | not enough because it may be an enum, glibc has been known to do this. | |
1382 | ||
1383 | d_msg_dontroute (d_socket.U): | |
1384 | This variable conditionally defines the HAS_MSG_DONTROUTE symbol, | |
1385 | which indicates that the MSG_DONTROUTE is available. #ifdef is | |
1386 | not enough because it may be an enum, glibc has been known to do this. | |
1387 | ||
1388 | d_msg_oob (d_socket.U): | |
1389 | This variable conditionally defines the HAS_MSG_OOB symbol, | |
1390 | which indicates that the MSG_OOB is available. #ifdef is | |
1391 | not enough because it may be an enum, glibc has been known to do this. | |
1392 | ||
1393 | d_msg_peek (d_socket.U): | |
1394 | This variable conditionally defines the HAS_MSG_PEEK symbol, | |
1395 | which indicates that the MSG_PEEK is available. #ifdef is | |
1396 | not enough because it may be an enum, glibc has been known to do this. | |
1397 | ||
1398 | d_msg_proxy (d_socket.U): | |
1399 | This variable conditionally defines the HAS_MSG_PROXY symbol, | |
1400 | which indicates that the MSG_PROXY is available. #ifdef is | |
1401 | not enough because it may be an enum, glibc has been known to do this. | |
1402 | ||
1403 | d_msgctl (d_msgctl.U): | |
1404 | This variable conditionally defines the HAS_MSGCTL symbol, which | |
1405 | indicates to the C program that the msgctl() routine is available. | |
1406 | ||
1407 | d_msgget (d_msgget.U): | |
1408 | This variable conditionally defines the HAS_MSGGET symbol, which | |
1409 | indicates to the C program that the msgget() routine is available. | |
1410 | ||
4e0554ec JH |
1411 | d_msghdr_s (d_msghdr_s.U): |
1412 | This variable conditionally defines the HAS_STRUCT_MSGHDR symbol, | |
1413 | which indicates that the struct msghdr is supported. | |
1414 | ||
781b178c JH |
1415 | d_msgrcv (d_msgrcv.U): |
1416 | This variable conditionally defines the HAS_MSGRCV symbol, which | |
1417 | indicates to the C program that the msgrcv() routine is available. | |
1418 | ||
1419 | d_msgsnd (d_msgsnd.U): | |
1420 | This variable conditionally defines the HAS_MSGSND symbol, which | |
1421 | indicates to the C program that the msgsnd() routine is available. | |
1422 | ||
fe749a9f JH |
1423 | d_msync (d_msync.U): |
1424 | This variable conditionally defines HAS_MSYNC if msync() is | |
1425 | available to synchronize a mapped file. | |
1426 | ||
1427 | d_munmap (d_munmap.U): | |
1428 | This variable conditionally defines HAS_MUNMAP if munmap() is | |
1429 | available to unmap a region mapped by mmap(). | |
1430 | ||
781b178c JH |
1431 | d_mymalloc (mallocsrc.U): |
1432 | This variable conditionally defines MYMALLOC in case other parts | |
1433 | of the source want to take special action if MYMALLOC is used. | |
1434 | This may include different sorts of profiling or error detection. | |
1435 | ||
781b178c JH |
1436 | d_nice (d_nice.U): |
1437 | This variable conditionally defines the HAS_NICE symbol, which | |
1438 | indicates to the C program that the nice() routine is available. | |
1439 | ||
2765b840 JH |
1440 | d_nl_langinfo (d_nl_langinfo.U): |
1441 | This variable conditionally defines the HAS_NL_LANGINFO symbol, which | |
1442 | indicates to the C program that the nl_langinfo() routine is available. | |
1443 | ||
78691af5 | 1444 | d_nv_preserves_uv (perlxv.U): |
cce08f5b JH |
1445 | This variable indicates whether a variable of type nvtype |
1446 | can preserve all the bits a variable of type uvtype. | |
1447 | ||
f607920a CB |
1448 | d_nv_zero_is_allbits_zero (perlxv.U): |
1449 | This variable indicates whether a variable of type nvtype | |
1450 | stores 0.0 in memory as all bits zero. | |
1451 | ||
c890dc6c | 1452 | d_off64_t (d_off64_t.U): |
781b178c JH |
1453 | This symbol will be defined if the C compiler supports off64_t. |
1454 | ||
781b178c JH |
1455 | d_old_pthread_create_joinable (d_pthrattrj.U): |
1456 | This variable conditionally defines pthread_create_joinable. | |
1457 | undef if pthread.h defines PTHREAD_CREATE_JOINABLE. | |
1458 | ||
1459 | d_oldpthreads (usethreads.U): | |
1460 | This variable conditionally defines the OLD_PTHREADS_API symbol, | |
1461 | and indicates that Perl should be built to use the old | |
8c09e4ca | 1462 | draft POSIX threads API. This is only potentially meaningful if |
781b178c JH |
1463 | usethreads is set. |
1464 | ||
1465 | d_oldsock (d_socket.U): | |
1466 | This variable conditionally defines the OLDSOCKET symbol, which | |
1467 | indicates that the BSD socket interface is based on 4.1c and not 4.2. | |
1468 | ||
1469 | d_open3 (d_open3.U): | |
1470 | This variable conditionally defines the HAS_OPEN3 manifest constant, | |
1471 | which indicates to the C program that the 3 argument version of | |
1472 | the open(2) function is available. | |
1473 | ||
781b178c JH |
1474 | d_pathconf (d_pathconf.U): |
1475 | This variable conditionally defines the HAS_PATHCONF symbol, which | |
1476 | indicates to the C program that the pathconf() routine is available | |
1477 | to determine file-system related limits and options associated | |
1478 | with a given filename. | |
1479 | ||
1480 | d_pause (d_pause.U): | |
1481 | This variable conditionally defines the HAS_PAUSE symbol, which | |
1482 | indicates to the C program that the pause() routine is available | |
1483 | to suspend a process until a signal is received. | |
1484 | ||
3b777bb4 GS |
1485 | d_perl_otherlibdirs (otherlibdirs.U): |
1486 | This variable conditionally defines PERL_OTHERLIBDIRS, which | |
1487 | contains a colon-separated set of paths for the perl binary to | |
1488 | include in @INC. See also otherlibdirs. | |
1489 | ||
781b178c JH |
1490 | d_phostname (d_gethname.U): |
1491 | This variable conditionally defines the HAS_PHOSTNAME symbol, which | |
1492 | contains the shell command which, when fed to popen(), may be | |
1493 | used to derive the host name. | |
1494 | ||
1495 | d_pipe (d_pipe.U): | |
1496 | This variable conditionally defines the HAS_PIPE symbol, which | |
1497 | indicates to the C program that the pipe() routine is available | |
1498 | to create an inter-process channel. | |
1499 | ||
1500 | d_poll (d_poll.U): | |
1501 | This variable conditionally defines the HAS_POLL symbol, which | |
1502 | indicates to the C program that the poll() routine is available | |
1503 | to poll active file descriptors. | |
1504 | ||
1505 | d_portable (d_portable.U): | |
1506 | This variable conditionally defines the PORTABLE symbol, which | |
1507 | indicates to the C program that it should not assume that it is | |
1508 | running on the machine it was compiled on. | |
1509 | ||
4d54317a JH |
1510 | d_PRId64 (quadfio.U): |
1511 | This variable conditionally defines the PERL_PRId64 symbol, which | |
1512 | indiciates that stdio has a symbol to print 64-bit decimal numbers. | |
1513 | ||
1514 | d_PRIeldbl (longdblfio.U): | |
1515 | This variable conditionally defines the PERL_PRIfldbl symbol, which | |
1516 | indiciates that stdio has a symbol to print long doubles. | |
1517 | ||
1518 | d_PRIEUldbl (longdblfio.U): | |
1519 | This variable conditionally defines the PERL_PRIfldbl symbol, which | |
1520 | indiciates that stdio has a symbol to print long doubles. | |
1521 | The 'U' in the name is to separate this from d_PRIeldbl so that even | |
1522 | case-blind systems can see the difference. | |
1523 | ||
1524 | d_PRIfldbl (longdblfio.U): | |
1525 | This variable conditionally defines the PERL_PRIfldbl symbol, which | |
1526 | indiciates that stdio has a symbol to print long doubles. | |
1527 | ||
1528 | d_PRIFUldbl (longdblfio.U): | |
1529 | This variable conditionally defines the PERL_PRIfldbl symbol, which | |
1530 | indiciates that stdio has a symbol to print long doubles. | |
1531 | The 'U' in the name is to separate this from d_PRIfldbl so that even | |
1532 | case-blind systems can see the difference. | |
1533 | ||
1534 | d_PRIgldbl (longdblfio.U): | |
1535 | This variable conditionally defines the PERL_PRIfldbl symbol, which | |
1536 | indiciates that stdio has a symbol to print long doubles. | |
1537 | ||
1538 | d_PRIGUldbl (longdblfio.U): | |
1539 | This variable conditionally defines the PERL_PRIfldbl symbol, which | |
1540 | indiciates that stdio has a symbol to print long doubles. | |
1541 | The 'U' in the name is to separate this from d_PRIgldbl so that even | |
1542 | case-blind systems can see the difference. | |
1543 | ||
1544 | d_PRIi64 (quadfio.U): | |
1545 | This variable conditionally defines the PERL_PRIi64 symbol, which | |
1546 | indiciates that stdio has a symbol to print 64-bit decimal numbers. | |
1547 | ||
066e7355 | 1548 | d_printf_format_null (d_attribut.U): |
dcb594bc MB |
1549 | This variable conditionally defines PRINTF_FORMAT_NULL_OK, which |
1550 | indicates the C compiler allows printf-like formats to be null. | |
1551 | ||
4d54317a JH |
1552 | d_PRIo64 (quadfio.U): |
1553 | This variable conditionally defines the PERL_PRIo64 symbol, which | |
1554 | indiciates that stdio has a symbol to print 64-bit octal numbers. | |
1555 | ||
1556 | d_PRIu64 (quadfio.U): | |
1557 | This variable conditionally defines the PERL_PRIu64 symbol, which | |
1558 | indiciates that stdio has a symbol to print 64-bit unsigned decimal | |
1559 | numbers. | |
1560 | ||
1561 | d_PRIx64 (quadfio.U): | |
1562 | This variable conditionally defines the PERL_PRIx64 symbol, which | |
1563 | indiciates that stdio has a symbol to print 64-bit hexadecimal numbers. | |
1564 | ||
1565 | d_PRIXU64 (quadfio.U): | |
1566 | This variable conditionally defines the PERL_PRIXU64 symbol, which | |
1567 | indiciates that stdio has a symbol to print 64-bit hExADECimAl numbers. | |
1568 | The 'U' in the name is to separate this from d_PRIx64 so that even | |
1569 | case-blind systems can see the difference. | |
1570 | ||
428dc699 JH |
1571 | d_procselfexe (d_procselfexe.U): |
1572 | Defined if $procselfexe is symlink to the absolute | |
1573 | pathname of the executing program. | |
1574 | ||
233e16ce MB |
1575 | d_pseudofork (d_vfork.U): |
1576 | This variable conditionally defines the HAS_PSEUDOFORK symbol, | |
1577 | which indicates that an emulation of the fork routine is available. | |
1578 | ||
d6483fcc JH |
1579 | d_pthread_atfork (d_pthread_atfork.U): |
1580 | This variable conditionally defines the HAS_PTHREAD_ATFORK symbol, | |
1581 | which indicates to the C program that the pthread_atfork() | |
1582 | routine is available. | |
1583 | ||
505656d3 JH |
1584 | d_pthread_attr_setscope (d_pthread_attr_ss.U): |
1585 | This variable conditionally defines HAS_PTHREAD_ATTR_SETSCOPE if | |
1586 | pthread_attr_setscope() is available to set the contention scope | |
1587 | attribute of a thread attribute object. | |
1588 | ||
781b178c JH |
1589 | d_pthread_yield (d_pthread_y.U): |
1590 | This variable conditionally defines the HAS_PTHREAD_YIELD | |
1591 | symbol if the pthread_yield routine is available to yield | |
1592 | the execution of the current thread. | |
1593 | ||
1594 | d_pwage (i_pwd.U): | |
1595 | This variable conditionally defines PWAGE, which indicates | |
1596 | that struct passwd contains pw_age. | |
1597 | ||
1598 | d_pwchange (i_pwd.U): | |
1599 | This variable conditionally defines PWCHANGE, which indicates | |
1600 | that struct passwd contains pw_change. | |
1601 | ||
1602 | d_pwclass (i_pwd.U): | |
1603 | This variable conditionally defines PWCLASS, which indicates | |
1604 | that struct passwd contains pw_class. | |
1605 | ||
1606 | d_pwcomment (i_pwd.U): | |
1607 | This variable conditionally defines PWCOMMENT, which indicates | |
1608 | that struct passwd contains pw_comment. | |
1609 | ||
1610 | d_pwexpire (i_pwd.U): | |
1611 | This variable conditionally defines PWEXPIRE, which indicates | |
1612 | that struct passwd contains pw_expire. | |
1613 | ||
1614 | d_pwgecos (i_pwd.U): | |
1615 | This variable conditionally defines PWGECOS, which indicates | |
1616 | that struct passwd contains pw_gecos. | |
1617 | ||
1618 | d_pwpasswd (i_pwd.U): | |
1619 | This variable conditionally defines PWPASSWD, which indicates | |
1620 | that struct passwd contains pw_passwd. | |
1621 | ||
1622 | d_pwquota (i_pwd.U): | |
1623 | This variable conditionally defines PWQUOTA, which indicates | |
1624 | that struct passwd contains pw_quota. | |
1625 | ||
792d8dab JH |
1626 | d_qgcvt (d_qgcvt.U): |
1627 | This variable conditionally defines the HAS_QGCVT symbol, which | |
1628 | indicates to the C program that the qgcvt() routine is available. | |
1629 | ||
de1c2614 JH |
1630 | d_quad (quadtype.U): |
1631 | This variable, if defined, tells that there's a 64-bit integer type, | |
1632 | quadtype. | |
1633 | ||
10bc17b6 JH |
1634 | d_random_r (d_random_r.U): |
1635 | This variable conditionally defines the HAS_RANDOM_R symbol, | |
1636 | which indicates to the C program that the random_r() | |
1637 | routine is available. | |
1638 | ||
df4c34dc MB |
1639 | d_readdir (d_readdir.U): |
1640 | This variable conditionally defines HAS_READDIR if readdir() is | |
1641 | available to read directory entries. | |
1642 | ||
10bc17b6 JH |
1643 | d_readdir64_r (d_readdir64_r.U): |
1644 | This variable conditionally defines the HAS_READDIR64_R symbol, | |
1645 | which indicates to the C program that the readdir64_r() | |
1646 | routine is available. | |
1647 | ||
10bc17b6 JH |
1648 | d_readdir_r (d_readdir_r.U): |
1649 | This variable conditionally defines the HAS_READDIR_R symbol, | |
1650 | which indicates to the C program that the readdir_r() | |
1651 | routine is available. | |
1652 | ||
781b178c JH |
1653 | d_readlink (d_readlink.U): |
1654 | This variable conditionally defines the HAS_READLINK symbol, which | |
1655 | indicates to the C program that the readlink() routine is available | |
1656 | to read the value of a symbolic link. | |
1657 | ||
4e0554ec JH |
1658 | d_readv (d_readv.U): |
1659 | This variable conditionally defines the HAS_READV symbol, which | |
1660 | indicates to the C program that the readv() routine is available. | |
1661 | ||
1662 | d_recvmsg (d_recvmsg.U): | |
1663 | This variable conditionally defines the HAS_RECVMSG symbol, which | |
1664 | indicates to the C program that the recvmsg() routine is available. | |
1665 | ||
781b178c JH |
1666 | d_rename (d_rename.U): |
1667 | This variable conditionally defines the HAS_RENAME symbol, which | |
1668 | indicates to the C program that the rename() routine is available | |
1669 | to rename files. | |
1670 | ||
1671 | d_rewinddir (d_readdir.U): | |
1672 | This variable conditionally defines HAS_REWINDDIR if rewinddir() is | |
1673 | available. | |
1674 | ||
1675 | d_rmdir (d_rmdir.U): | |
1676 | This variable conditionally defines HAS_RMDIR if rmdir() is | |
1677 | available to remove directories. | |
1678 | ||
1679 | d_safebcpy (d_safebcpy.U): | |
1680 | This variable conditionally defines the HAS_SAFE_BCOPY symbol if | |
b6cc3bc4 AD |
1681 | the bcopy() routine can do overlapping copies. Normally, you |
1682 | should probably use memmove(). | |
781b178c JH |
1683 | |
1684 | d_safemcpy (d_safemcpy.U): | |
1685 | This variable conditionally defines the HAS_SAFE_MEMCPY symbol if | |
1686 | the memcpy() routine can do overlapping copies. | |
b6cc3bc4 | 1687 | For overlapping copies, memmove() should be used, if available. |
781b178c JH |
1688 | |
1689 | d_sanemcmp (d_sanemcmp.U): | |
1690 | This variable conditionally defines the HAS_SANE_MEMCMP symbol if | |
1691 | the memcpy() routine is available and can be used to compare relative | |
1692 | magnitudes of chars with their high bits set. | |
1693 | ||
ef9f17be JH |
1694 | d_sbrkproto (d_sbrkproto.U): |
1695 | This variable conditionally defines the HAS_SBRK_PROTO symbol, | |
1696 | which indicates to the C program that the system provides | |
1697 | a prototype for the sbrk() function. Otherwise, it is | |
1698 | up to the program to supply one. | |
1699 | ||
5c567d7d JH |
1700 | d_scalbnl (d_scalbnl.U): |
1701 | This variable conditionally defines the HAS_SCALBNL symbol, which | |
1702 | indicates to the C program that the scalbnl() routine is available. | |
1703 | If ilogbl is also present we can emulate frexpl. | |
1704 | ||
781b178c JH |
1705 | d_sched_yield (d_pthread_y.U): |
1706 | This variable conditionally defines the HAS_SCHED_YIELD | |
1707 | symbol if the sched_yield routine is available to yield | |
1708 | the execution of the current thread. | |
1709 | ||
1710 | d_scm_rights (d_socket.U): | |
1711 | This variable conditionally defines the HAS_SCM_RIGHTS symbol, | |
1712 | which indicates that the SCM_RIGHTS is available. #ifdef is | |
1713 | not enough because it may be an enum, glibc has been known to do this. | |
1714 | ||
4d54317a JH |
1715 | d_SCNfldbl (longdblfio.U): |
1716 | This variable conditionally defines the PERL_PRIfldbl symbol, which | |
1717 | indiciates that stdio has a symbol to scan long doubles. | |
1718 | ||
781b178c JH |
1719 | d_seekdir (d_readdir.U): |
1720 | This variable conditionally defines HAS_SEEKDIR if seekdir() is | |
1721 | available. | |
1722 | ||
1723 | d_select (d_select.U): | |
1724 | This variable conditionally defines HAS_SELECT if select() is | |
1725 | available to select active file descriptors. A <sys/time.h> | |
1726 | inclusion may be necessary for the timeout field. | |
1727 | ||
1728 | d_sem (d_sem.U): | |
1729 | This variable conditionally defines the HAS_SEM symbol, which | |
1730 | indicates that the entire sem*(2) library is present. | |
1731 | ||
1732 | d_semctl (d_semctl.U): | |
1733 | This variable conditionally defines the HAS_SEMCTL symbol, which | |
1734 | indicates to the C program that the semctl() routine is available. | |
1735 | ||
1736 | d_semctl_semid_ds (d_union_semun.U): | |
1737 | This variable conditionally defines USE_SEMCTL_SEMID_DS, which | |
1738 | indicates that struct semid_ds * is to be used for semctl IPC_STAT. | |
1739 | ||
1740 | d_semctl_semun (d_union_semun.U): | |
1741 | This variable conditionally defines USE_SEMCTL_SEMUN, which | |
1742 | indicates that union semun is to be used for semctl IPC_STAT. | |
1743 | ||
1744 | d_semget (d_semget.U): | |
1745 | This variable conditionally defines the HAS_SEMGET symbol, which | |
1746 | indicates to the C program that the semget() routine is available. | |
1747 | ||
1748 | d_semop (d_semop.U): | |
1749 | This variable conditionally defines the HAS_SEMOP symbol, which | |
1750 | indicates to the C program that the semop() routine is available. | |
1751 | ||
4e0554ec JH |
1752 | d_sendmsg (d_sendmsg.U): |
1753 | This variable conditionally defines the HAS_SENDMSG symbol, which | |
1754 | indicates to the C program that the sendmsg() routine is available. | |
1755 | ||
781b178c JH |
1756 | d_setegid (d_setegid.U): |
1757 | This variable conditionally defines the HAS_SETEGID symbol, which | |
1758 | indicates to the C program that the setegid() routine is available | |
1759 | to change the effective gid of the current program. | |
1760 | ||
1761 | d_seteuid (d_seteuid.U): | |
1762 | This variable conditionally defines the HAS_SETEUID symbol, which | |
1763 | indicates to the C program that the seteuid() routine is available | |
1764 | to change the effective uid of the current program. | |
1765 | ||
1766 | d_setgrent (d_setgrent.U): | |
1767 | This variable conditionally defines the HAS_SETGRENT symbol, which | |
1768 | indicates to the C program that the setgrent() routine is available | |
1769 | for initializing sequential access to the group database. | |
1770 | ||
10bc17b6 JH |
1771 | d_setgrent_r (d_setgrent_r.U): |
1772 | This variable conditionally defines the HAS_SETGRENT_R symbol, | |
1773 | which indicates to the C program that the setgrent_r() | |
1774 | routine is available. | |
1775 | ||
781b178c JH |
1776 | d_setgrps (d_setgrps.U): |
1777 | This variable conditionally defines the HAS_SETGROUPS symbol, which | |
1778 | indicates to the C program that the setgroups() routine is available | |
1779 | to set the list of process groups. | |
1780 | ||
1781 | d_sethent (d_sethent.U): | |
1782 | This variable conditionally defines HAS_SETHOSTENT if sethostent() is | |
1783 | available. | |
1784 | ||
10bc17b6 JH |
1785 | d_sethostent_r (d_sethostent_r.U): |
1786 | This variable conditionally defines the HAS_SETHOSTENT_R symbol, | |
1787 | which indicates to the C program that the sethostent_r() | |
1788 | routine is available. | |
1789 | ||
4e0554ec JH |
1790 | d_setitimer (d_setitimer.U): |
1791 | This variable conditionally defines the HAS_SETITIMER symbol, which | |
1792 | indicates to the C program that the setitimer() routine is available. | |
1793 | ||
781b178c JH |
1794 | d_setlinebuf (d_setlnbuf.U): |
1795 | This variable conditionally defines the HAS_SETLINEBUF symbol, which | |
1796 | indicates to the C program that the setlinebuf() routine is available | |
1797 | to change stderr or stdout from block-buffered or unbuffered to a | |
1798 | line-buffered mode. | |
1799 | ||
1800 | d_setlocale (d_setlocale.U): | |
1801 | This variable conditionally defines HAS_SETLOCALE if setlocale() is | |
1802 | available to handle locale-specific ctype implementations. | |
1803 | ||
10bc17b6 JH |
1804 | d_setlocale_r (d_setlocale_r.U): |
1805 | This variable conditionally defines the HAS_SETLOCALE_R symbol, | |
1806 | which indicates to the C program that the setlocale_r() | |
1807 | routine is available. | |
1808 | ||
781b178c JH |
1809 | d_setnent (d_setnent.U): |
1810 | This variable conditionally defines HAS_SETNETENT if setnetent() is | |
1811 | available. | |
1812 | ||
10bc17b6 JH |
1813 | d_setnetent_r (d_setnetent_r.U): |
1814 | This variable conditionally defines the HAS_SETNETENT_R symbol, | |
1815 | which indicates to the C program that the setnetent_r() | |
1816 | routine is available. | |
1817 | ||
781b178c JH |
1818 | d_setpent (d_setpent.U): |
1819 | This variable conditionally defines HAS_SETPROTOENT if setprotoent() is | |
1820 | available. | |
1821 | ||
1822 | d_setpgid (d_setpgid.U): | |
1823 | This variable conditionally defines the HAS_SETPGID symbol if the | |
1824 | setpgid(pid, gpid) function is available to set process group ID. | |
1825 | ||
df4c34dc MB |
1826 | d_setpgrp (d_setpgrp.U): |
1827 | This variable conditionally defines HAS_SETPGRP if setpgrp() is | |
1828 | available to set the current process group. | |
1829 | ||
781b178c JH |
1830 | d_setpgrp2 (d_setpgrp2.U): |
1831 | This variable conditionally defines the HAS_SETPGRP2 symbol, which | |
1832 | indicates to the C program that the setpgrp2() (as in DG/UX) routine | |
1833 | is available to set the current process group. | |
1834 | ||
781b178c JH |
1835 | d_setprior (d_setprior.U): |
1836 | This variable conditionally defines HAS_SETPRIORITY if setpriority() | |
1837 | is available to set a process's priority. | |
1838 | ||
af960fef JH |
1839 | d_setproctitle (d_setproctitle.U): |
1840 | This variable conditionally defines the HAS_SETPROCTITLE symbol, | |
1841 | which indicates to the C program that the setproctitle() routine | |
1842 | is available. | |
1843 | ||
10bc17b6 JH |
1844 | d_setprotoent_r (d_setprotoent_r.U): |
1845 | This variable conditionally defines the HAS_SETPROTOENT_R symbol, | |
1846 | which indicates to the C program that the setprotoent_r() | |
1847 | routine is available. | |
1848 | ||
781b178c JH |
1849 | d_setpwent (d_setpwent.U): |
1850 | This variable conditionally defines the HAS_SETPWENT symbol, which | |
1851 | indicates to the C program that the setpwent() routine is available | |
1852 | for initializing sequential access to the passwd database. | |
1853 | ||
10bc17b6 JH |
1854 | d_setpwent_r (d_setpwent_r.U): |
1855 | This variable conditionally defines the HAS_SETPWENT_R symbol, | |
1856 | which indicates to the C program that the setpwent_r() | |
1857 | routine is available. | |
1858 | ||
781b178c JH |
1859 | d_setregid (d_setregid.U): |
1860 | This variable conditionally defines HAS_SETREGID if setregid() is | |
1861 | available to change the real and effective gid of the current | |
1862 | process. | |
1863 | ||
1864 | d_setresgid (d_setregid.U): | |
1865 | This variable conditionally defines HAS_SETRESGID if setresgid() is | |
1866 | available to change the real, effective and saved gid of the current | |
1867 | process. | |
1868 | ||
1869 | d_setresuid (d_setreuid.U): | |
1870 | This variable conditionally defines HAS_SETREUID if setresuid() is | |
1871 | available to change the real, effective and saved uid of the current | |
1872 | process. | |
1873 | ||
1874 | d_setreuid (d_setreuid.U): | |
1875 | This variable conditionally defines HAS_SETREUID if setreuid() is | |
1876 | available to change the real and effective uid of the current | |
1877 | process. | |
1878 | ||
1879 | d_setrgid (d_setrgid.U): | |
1880 | This variable conditionally defines the HAS_SETRGID symbol, which | |
1881 | indicates to the C program that the setrgid() routine is available | |
1882 | to change the real gid of the current program. | |
1883 | ||
1884 | d_setruid (d_setruid.U): | |
1885 | This variable conditionally defines the HAS_SETRUID symbol, which | |
1886 | indicates to the C program that the setruid() routine is available | |
1887 | to change the real uid of the current program. | |
1888 | ||
1889 | d_setsent (d_setsent.U): | |
1890 | This variable conditionally defines HAS_SETSERVENT if setservent() is | |
1891 | available. | |
1892 | ||
10bc17b6 JH |
1893 | d_setservent_r (d_setservent_r.U): |
1894 | This variable conditionally defines the HAS_SETSERVENT_R symbol, | |
1895 | which indicates to the C program that the setservent_r() | |
1896 | routine is available. | |
1897 | ||
781b178c JH |
1898 | d_setsid (d_setsid.U): |
1899 | This variable conditionally defines HAS_SETSID if setsid() is | |
1900 | available to set the process group ID. | |
1901 | ||
781b178c JH |
1902 | d_setvbuf (d_setvbuf.U): |
1903 | This variable conditionally defines the HAS_SETVBUF symbol, which | |
1904 | indicates to the C program that the setvbuf() routine is available | |
1905 | to change buffering on an open stdio stream. | |
1906 | ||
1907 | d_sfio (d_sfio.U): | |
1908 | This variable conditionally defines the USE_SFIO symbol, | |
1909 | and indicates whether sfio is available (and should be used). | |
1910 | ||
1911 | d_shm (d_shm.U): | |
1912 | This variable conditionally defines the HAS_SHM symbol, which | |
1913 | indicates that the entire shm*(2) library is present. | |
1914 | ||
1915 | d_shmat (d_shmat.U): | |
1916 | This variable conditionally defines the HAS_SHMAT symbol, which | |
1917 | indicates to the C program that the shmat() routine is available. | |
1918 | ||
1919 | d_shmatprototype (d_shmat.U): | |
635aebb7 | 1920 | This variable conditionally defines the HAS_SHMAT_PROTOTYPE |
781b178c JH |
1921 | symbol, which indicates that sys/shm.h has a prototype for |
1922 | shmat. | |
1923 | ||
1924 | d_shmctl (d_shmctl.U): | |
1925 | This variable conditionally defines the HAS_SHMCTL symbol, which | |
1926 | indicates to the C program that the shmctl() routine is available. | |
1927 | ||
1928 | d_shmdt (d_shmdt.U): | |
1929 | This variable conditionally defines the HAS_SHMDT symbol, which | |
1930 | indicates to the C program that the shmdt() routine is available. | |
1931 | ||
1932 | d_shmget (d_shmget.U): | |
1933 | This variable conditionally defines the HAS_SHMGET symbol, which | |
1934 | indicates to the C program that the shmget() routine is available. | |
1935 | ||
1936 | d_sigaction (d_sigaction.U): | |
1937 | This variable conditionally defines the HAS_SIGACTION symbol, which | |
1938 | indicates that the Vr4 sigaction() routine is available. | |
1939 | ||
ed140128 AD |
1940 | d_signbit (d_signbit.U): |
1941 | This variable conditionally defines the HAS_SIGNBIT symbol, which | |
1942 | indicates to the C program that the signbit() routine is available | |
1943 | and safe to use with perl's intern NV type. | |
1944 | ||
983dbef6 JH |
1945 | d_sigprocmask (d_sigprocmask.U): |
1946 | This variable conditionally defines HAS_SIGPROCMASK | |
1947 | if sigprocmask() is available to examine or change the signal mask | |
1948 | of the calling process. | |
1949 | ||
781b178c JH |
1950 | d_sigsetjmp (d_sigsetjmp.U): |
1951 | This variable conditionally defines the HAS_SIGSETJMP symbol, | |
1952 | which indicates that the sigsetjmp() routine is available to | |
1953 | call setjmp() and optionally save the process's signal mask. | |
1954 | ||
c95d0e17 GA |
1955 | d_sitearch (sitearch.U): |
1956 | This variable conditionally defines SITEARCH to hold the pathname | |
1957 | of architecture-dependent library files for $package. If | |
1958 | $sitearch is the same as $archlib, then this is set to undef. | |
1959 | ||
df4c34dc MB |
1960 | d_snprintf (d_snprintf.U): |
1961 | This variable conditionally defines the HAS_SNPRINTF symbol, which | |
1962 | indicates to the C program that the snprintf () library function | |
1963 | is available. | |
1964 | ||
49a78c82 JH |
1965 | d_sockatmark (d_sockatmark.U): |
1966 | This variable conditionally defines the HAS_SOCKATMARK symbol, which | |
1967 | indicates to the C program that the sockatmark() routine is available. | |
1968 | ||
5af95cda JH |
1969 | d_sockatmarkproto (d_sockatmarkproto.U): |
1970 | This variable conditionally defines the HAS_SOCKATMARK_PROTO symbol, | |
1971 | which indicates to the C program that the system provides | |
1972 | a prototype for the sockatmark() function. Otherwise, it is | |
1973 | up to the program to supply one. | |
1974 | ||
781b178c JH |
1975 | d_socket (d_socket.U): |
1976 | This variable conditionally defines HAS_SOCKET, which indicates | |
1977 | that the BSD socket interface is supported. | |
1978 | ||
13b3f787 JH |
1979 | d_socklen_t (d_socklen_t.U): |
1980 | This symbol will be defined if the C compiler supports socklen_t. | |
1981 | ||
781b178c JH |
1982 | d_sockpair (d_socket.U): |
1983 | This variable conditionally defines the HAS_SOCKETPAIR symbol, which | |
1984 | indicates that the BSD socketpair() is supported. | |
1985 | ||
6b356c8e JH |
1986 | d_socks5_init (d_socks5_init.U): |
1987 | This variable conditionally defines the HAS_SOCKS5_INIT symbol, which | |
1988 | indicates to the C program that the socks5_init() routine is available. | |
1989 | ||
df4c34dc | 1990 | d_sprintf_returns_strlen (d_sprintf_len.U): |
78821a22 NC |
1991 | This variable defines whether sprintf returns the length of the string |
1992 | (as per the ANSI spec). Some C libraries retain compatibility with | |
1993 | pre-ANSI C and return a pointer to the passed in buffer; for these | |
1994 | this variable will be undef. | |
1995 | ||
68d4903c JH |
1996 | d_sqrtl (d_sqrtl.U): |
1997 | This variable conditionally defines the HAS_SQRTL symbol, which | |
1998 | indicates to the C program that the sqrtl() routine is available. | |
1999 | ||
10bc17b6 JH |
2000 | d_srand48_r (d_srand48_r.U): |
2001 | This variable conditionally defines the HAS_SRAND48_R symbol, | |
2002 | which indicates to the C program that the srand48_r() | |
2003 | routine is available. | |
2004 | ||
2005 | d_srandom_r (d_srandom_r.U): | |
2006 | This variable conditionally defines the HAS_SRANDOM_R symbol, | |
2007 | which indicates to the C program that the srandom_r() | |
2008 | routine is available. | |
2009 | ||
eef837ea JH |
2010 | d_sresgproto (d_sresgproto.U): |
2011 | This variable conditionally defines the HAS_SETRESGID_PROTO symbol, | |
2012 | which indicates to the C program that the system provides | |
2013 | a prototype for the setresgid() function. Otherwise, it is | |
2014 | up to the program to supply one. | |
2015 | ||
640374d0 JH |
2016 | d_sresuproto (d_sresuproto.U): |
2017 | This variable conditionally defines the HAS_SETRESUID_PROTO symbol, | |
2018 | which indicates to the C program that the system provides | |
2019 | a prototype for the setresuid() function. Otherwise, it is | |
2020 | up to the program to supply one. | |
2021 | ||
781b178c JH |
2022 | d_statblks (d_statblks.U): |
2023 | This variable conditionally defines USE_STAT_BLOCKS | |
2024 | if this system has a stat structure declaring | |
2025 | st_blksize and st_blocks. | |
2026 | ||
ad27e871 | 2027 | d_statfs_f_flags (d_statfs_f_flags.U): |
0545a864 | 2028 | This variable conditionally defines the HAS_STRUCT_STATFS_F_FLAGS |
781b178c JH |
2029 | symbol, which indicates to struct statfs from has f_flags member. |
2030 | This kind of struct statfs is coming from sys/mount.h (BSD), | |
2031 | not from sys/statfs.h (SYSV). | |
2032 | ||
ad27e871 | 2033 | d_statfs_s (d_statfs_s.U): |
0545a864 JH |
2034 | This variable conditionally defines the HAS_STRUCT_STATFS symbol, |
2035 | which indicates that the struct statfs is supported. | |
2036 | ||
781b178c JH |
2037 | d_statvfs (d_statvfs.U): |
2038 | This variable conditionally defines the HAS_STATVFS symbol, which | |
2039 | indicates to the C program that the statvfs() routine is available. | |
2040 | ||
2041 | d_stdio_cnt_lval (d_stdstdio.U): | |
2042 | This variable conditionally defines STDIO_CNT_LVALUE if the | |
2043 | FILE_cnt macro can be used as an lvalue. | |
2044 | ||
2045 | d_stdio_ptr_lval (d_stdstdio.U): | |
2046 | This variable conditionally defines STDIO_PTR_LVALUE if the | |
2047 | FILE_ptr macro can be used as an lvalue. | |
2048 | ||
a7ffa9b9 NC |
2049 | d_stdio_ptr_lval_nochange_cnt (d_stdstdio.U): |
2050 | This symbol is defined if using the FILE_ptr macro as an lvalue | |
2051 | to increase the pointer by n leaves File_cnt(fp) unchanged. | |
2052 | ||
2053 | d_stdio_ptr_lval_sets_cnt (d_stdstdio.U): | |
2054 | This symbol is defined if using the FILE_ptr macro as an lvalue | |
2055 | to increase the pointer by n has the side effect of decreasing the | |
2056 | value of File_cnt(fp) by n. | |
2057 | ||
781b178c JH |
2058 | d_stdio_stream_array (stdio_streams.U): |
2059 | This variable tells whether there is an array holding | |
2060 | the stdio streams. | |
2061 | ||
2062 | d_stdiobase (d_stdstdio.U): | |
2063 | This variable conditionally defines USE_STDIO_BASE if this system | |
2064 | has a FILE structure declaring a usable _base field (or equivalent) | |
2065 | in stdio.h. | |
2066 | ||
2067 | d_stdstdio (d_stdstdio.U): | |
2068 | This variable conditionally defines USE_STDIO_PTR if this system | |
2069 | has a FILE structure declaring usable _ptr and _cnt fields (or | |
2070 | equivalent) in stdio.h. | |
2071 | ||
781b178c JH |
2072 | d_strchr (d_strchr.U): |
2073 | This variable conditionally defines HAS_STRCHR if strchr() and | |
2074 | strrchr() are available for string searching. | |
2075 | ||
2076 | d_strcoll (d_strcoll.U): | |
2077 | This variable conditionally defines HAS_STRCOLL if strcoll() is | |
2078 | available to compare strings using collating information. | |
2079 | ||
2080 | d_strctcpy (d_strctcpy.U): | |
2081 | This variable conditionally defines the USE_STRUCT_COPY symbol, which | |
2082 | indicates to the C program that this C compiler knows how to copy | |
2083 | structures. | |
2084 | ||
2085 | d_strerrm (d_strerror.U): | |
2086 | This variable holds what Strerrr is defined as to translate an error | |
2087 | code condition into an error message string. It could be 'strerror' | |
2088 | or a more complex macro emulating strrror with sys_errlist[], or the | |
2089 | "unknown" string when both strerror and sys_errlist are missing. | |
2090 | ||
2091 | d_strerror (d_strerror.U): | |
2092 | This variable conditionally defines HAS_STRERROR if strerror() is | |
2093 | available to translate error numbers to strings. | |
2094 | ||
10bc17b6 JH |
2095 | d_strerror_r (d_strerror_r.U): |
2096 | This variable conditionally defines the HAS_STRERROR_R symbol, | |
2097 | which indicates to the C program that the strerror_r() | |
2098 | routine is available. | |
2099 | ||
b3c85772 JH |
2100 | d_strftime (d_strftime.U): |
2101 | This variable conditionally defines the HAS_STRFTIME symbol, which | |
2102 | indicates to the C program that the strftime() routine is available. | |
2103 | ||
fd550ca5 MB |
2104 | d_strlcat (d_strlcat.U): |
2105 | This variable conditionally defines the HAS_STRLCAT symbol, which | |
2106 | indicates to the C program that the strlcat () routine is available. | |
2107 | ||
2108 | d_strlcpy (d_strlcpy.U): | |
2109 | This variable conditionally defines the HAS_STRLCPY symbol, which | |
2110 | indicates to the C program that the strlcpy () routine is available. | |
2111 | ||
781b178c JH |
2112 | d_strtod (d_strtod.U): |
2113 | This variable conditionally defines the HAS_STRTOD symbol, which | |
2114 | indicates to the C program that the strtod() routine is available | |
2115 | to provide better numeric string conversion than atof(). | |
2116 | ||
2117 | d_strtol (d_strtol.U): | |
2118 | This variable conditionally defines the HAS_STRTOL symbol, which | |
2119 | indicates to the C program that the strtol() routine is available | |
2120 | to provide better numeric string conversion than atoi() and friends. | |
2121 | ||
ff935051 JH |
2122 | d_strtold (d_strtold.U): |
2123 | This variable conditionally defines the HAS_STRTOLD symbol, which | |
2124 | indicates to the C program that the strtold() routine is available. | |
2125 | ||
76d49b1c JH |
2126 | d_strtoll (d_strtoll.U): |
2127 | This variable conditionally defines the HAS_STRTOLL symbol, which | |
2128 | indicates to the C program that the strtoll() routine is available. | |
2129 | ||
d0e6d399 NC |
2130 | d_strtoq (d_strtoq.U): |
2131 | This variable conditionally defines the HAS_STRTOQ symbol, which | |
2132 | indicates to the C program that the strtoq() routine is available. | |
2133 | ||
781b178c JH |
2134 | d_strtoul (d_strtoul.U): |
2135 | This variable conditionally defines the HAS_STRTOUL symbol, which | |
2136 | indicates to the C program that the strtoul() routine is available | |
2137 | to provide conversion of strings to unsigned long. | |
2138 | ||
ff935051 | 2139 | d_strtoull (d_strtoull.U): |
11dc3f68 JH |
2140 | This variable conditionally defines the HAS_STRTOULL symbol, which |
2141 | indicates to the C program that the strtoull() routine is available. | |
2142 | ||
ff935051 JH |
2143 | d_strtouq (d_strtouq.U): |
2144 | This variable conditionally defines the HAS_STRTOUQ symbol, which | |
2145 | indicates to the C program that the strtouq() routine is available. | |
2146 | ||
781b178c JH |
2147 | d_strxfrm (d_strxfrm.U): |
2148 | This variable conditionally defines HAS_STRXFRM if strxfrm() is | |
2149 | available to transform strings. | |
2150 | ||
2151 | d_suidsafe (d_dosuid.U): | |
2152 | This variable conditionally defines SETUID_SCRIPTS_ARE_SECURE_NOW | |
2153 | if setuid scripts can be secure. This test looks in /dev/fd/. | |
2154 | ||
2155 | d_symlink (d_symlink.U): | |
2156 | This variable conditionally defines the HAS_SYMLINK symbol, which | |
2157 | indicates to the C program that the symlink() routine is available | |
2158 | to create symbolic links. | |
2159 | ||
2160 | d_syscall (d_syscall.U): | |
2161 | This variable conditionally defines HAS_SYSCALL if syscall() is | |
2162 | available call arbitrary system calls. | |
2163 | ||
5af95cda JH |
2164 | d_syscallproto (d_syscallproto.U): |
2165 | This variable conditionally defines the HAS_SYSCALL_PROTO symbol, | |
2166 | which indicates to the C program that the system provides | |
2167 | a prototype for the syscall() function. Otherwise, it is | |
2168 | up to the program to supply one. | |
2169 | ||
781b178c JH |
2170 | d_sysconf (d_sysconf.U): |
2171 | This variable conditionally defines the HAS_SYSCONF symbol, which | |
2172 | indicates to the C program that the sysconf() routine is available | |
2173 | to determine system related limits and options. | |
2174 | ||
2175 | d_sysernlst (d_strerror.U): | |
2176 | This variable conditionally defines HAS_SYS_ERRNOLIST if sys_errnolist[] | |
2177 | is available to translate error numbers to the symbolic name. | |
2178 | ||
2179 | d_syserrlst (d_strerror.U): | |
2180 | This variable conditionally defines HAS_SYS_ERRLIST if sys_errlist[] is | |
2181 | available to translate error numbers to strings. | |
2182 | ||
2183 | d_system (d_system.U): | |
2184 | This variable conditionally defines HAS_SYSTEM if system() is | |
2185 | available to issue a shell command. | |
2186 | ||
2187 | d_tcgetpgrp (d_tcgtpgrp.U): | |
2188 | This variable conditionally defines the HAS_TCGETPGRP symbol, which | |
2189 | indicates to the C program that the tcgetpgrp() routine is available. | |
2190 | to get foreground process group ID. | |
2191 | ||
2192 | d_tcsetpgrp (d_tcstpgrp.U): | |
2193 | This variable conditionally defines the HAS_TCSETPGRP symbol, which | |
2194 | indicates to the C program that the tcsetpgrp() routine is available | |
2195 | to set foreground process group ID. | |
2196 | ||
781b178c JH |
2197 | d_telldir (d_readdir.U): |
2198 | This variable conditionally defines HAS_TELLDIR if telldir() is | |
2199 | available. | |
2200 | ||
2201 | d_telldirproto (d_telldirproto.U): | |
2202 | This variable conditionally defines the HAS_TELLDIR_PROTO symbol, | |
2203 | which indicates to the C program that the system provides | |
2204 | a prototype for the telldir() function. Otherwise, it is | |
2205 | up to the program to supply one. | |
2206 | ||
2207 | d_time (d_time.U): | |
2208 | This variable conditionally defines the HAS_TIME symbol, which indicates | |
2209 | that the time() routine exists. The time() routine is normaly | |
2210 | provided on UNIX systems. | |
2211 | ||
2212 | d_times (d_times.U): | |
2213 | This variable conditionally defines the HAS_TIMES symbol, which indicates | |
2214 | that the times() routine exists. The times() routine is normaly | |
2215 | provided on UNIX systems. You may have to include <sys/times.h>. | |
2216 | ||
511116db JH |
2217 | d_tm_tm_gmtoff (i_time.U): |
2218 | This variable conditionally defines HAS_TM_TM_GMTOFF, which indicates | |
2219 | indicates to the C program that the struct tm has the tm_gmtoff field. | |
2220 | ||
2221 | d_tm_tm_zone (i_time.U): | |
2222 | This variable conditionally defines HAS_TM_TM_ZONE, which indicates | |
2223 | indicates to the C program that the struct tm has the tm_zone field. | |
2224 | ||
10bc17b6 JH |
2225 | d_tmpnam_r (d_tmpnam_r.U): |
2226 | This variable conditionally defines the HAS_TMPNAM_R symbol, | |
2227 | which indicates to the C program that the tmpnam_r() | |
2228 | routine is available. | |
2229 | ||
781b178c JH |
2230 | d_truncate (d_truncate.U): |
2231 | This variable conditionally defines HAS_TRUNCATE if truncate() is | |
2232 | available to truncate files. | |
2233 | ||
10bc17b6 JH |
2234 | d_ttyname_r (d_ttyname_r.U): |
2235 | This variable conditionally defines the HAS_TTYNAME_R symbol, | |
2236 | which indicates to the C program that the ttyname_r() | |
2237 | routine is available. | |
2238 | ||
781b178c JH |
2239 | d_tzname (d_tzname.U): |
2240 | This variable conditionally defines HAS_TZNAME if tzname[] is | |
2241 | available to access timezone names. | |
2242 | ||
4e0554ec JH |
2243 | d_u32align (d_u32align.U): |
2244 | This variable tells whether you must access character data | |
2245 | through U32-aligned pointers. | |
2246 | ||
2247 | d_ualarm (d_ualarm.U): | |
2248 | This variable conditionally defines the HAS_UALARM symbol, which | |
2249 | indicates to the C program that the ualarm() routine is available. | |
2250 | ||
781b178c JH |
2251 | d_umask (d_umask.U): |
2252 | This variable conditionally defines the HAS_UMASK symbol, which | |
2253 | indicates to the C program that the umask() routine is available. | |
2254 | to set and get the value of the file creation mask. | |
2255 | ||
2256 | d_uname (d_gethname.U): | |
2257 | This variable conditionally defines the HAS_UNAME symbol, which | |
2258 | indicates to the C program that the uname() routine may be | |
2259 | used to derive the host name. | |
2260 | ||
2261 | d_union_semun (d_union_semun.U): | |
2262 | This variable conditionally defines HAS_UNION_SEMUN if the | |
2263 | union semun is defined by including <sys/sem.h>. | |
2264 | ||
758a5d79 JH |
2265 | d_unordered (d_unordered.U): |
2266 | This variable conditionally defines the HAS_UNORDERED symbol, which | |
2267 | indicates to the C program that the unordered() routine is available. | |
2268 | ||
bdf33aa7 SP |
2269 | d_unsetenv (d_unsetenv.U): |
2270 | This variable conditionally defines the HAS_UNSETENV symbol, which | |
2271 | indicates to the C program that the unsetenv () routine is available. | |
2272 | ||
4e0554ec JH |
2273 | d_usleep (d_usleep.U): |
2274 | This variable conditionally defines HAS_USLEEP if usleep() is | |
2275 | available to do high granularity sleeps. | |
2276 | ||
5af95cda JH |
2277 | d_usleepproto (d_usleepproto.U): |
2278 | This variable conditionally defines the HAS_USLEEP_PROTO symbol, | |
2279 | which indicates to the C program that the system provides | |
2280 | a prototype for the usleep() function. Otherwise, it is | |
2281 | up to the program to supply one. | |
2282 | ||
0545a864 JH |
2283 | d_ustat (d_ustat.U): |
2284 | This variable conditionally defines HAS_USTAT if ustat() is | |
2285 | available to query file system statistics by dev_t. | |
2286 | ||
526fdc24 MS |
2287 | d_vendorarch (vendorarch.U): |
2288 | This variable conditionally defined PERL_VENDORARCH. | |
2289 | ||
0617aed7 JH |
2290 | d_vendorbin (vendorbin.U): |
2291 | This variable conditionally defines PERL_VENDORBIN. | |
2292 | ||
a3635516 JH |
2293 | d_vendorlib (vendorlib.U): |
2294 | This variable conditionally defines PERL_VENDORLIB. | |
2295 | ||
10305dfa JH |
2296 | d_vendorscript (vendorscript.U): |
2297 | This variable conditionally defines PERL_VENDORSCRIPT. | |
2298 | ||
781b178c JH |
2299 | d_vfork (d_vfork.U): |
2300 | This variable conditionally defines the HAS_VFORK symbol, which | |
2301 | indicates the vfork() routine is available. | |
2302 | ||
2303 | d_void_closedir (d_closedir.U): | |
2304 | This variable conditionally defines VOID_CLOSEDIR if closedir() | |
2305 | does not return a value. | |
2306 | ||
2307 | d_voidsig (d_voidsig.U): | |
2308 | This variable conditionally defines VOIDSIG if this system | |
2309 | declares "void (*signal(...))()" in signal.h. The old way was to | |
2310 | declare it as "int (*signal(...))()". | |
2311 | ||
2312 | d_voidtty (i_sysioctl.U): | |
2313 | This variable conditionally defines USE_IOCNOTTY to indicate that the | |
2314 | ioctl() call with TIOCNOTTY should be used to void tty association. | |
2315 | Otherwise (on USG probably), it is enough to close the standard file | |
2316 | decriptors and do a setpgrp(). | |
2317 | ||
2318 | d_volatile (d_volatile.U): | |
2319 | This variable conditionally defines the HASVOLATILE symbol, which | |
2320 | indicates to the C program that this C compiler knows about the | |
2321 | volatile declaration. | |
2322 | ||
2323 | d_vprintf (d_vprintf.U): | |
2324 | This variable conditionally defines the HAS_VPRINTF symbol, which | |
2325 | indicates to the C program that the vprintf() routine is available | |
2326 | to printf with a pointer to an argument list. | |
2327 | ||
df4c34dc MB |
2328 | d_vsnprintf (d_snprintf.U): |
2329 | This variable conditionally defines the HAS_VSNPRINTF symbol, which | |
2330 | indicates to the C program that the vsnprintf () library function | |
2331 | is available. | |
2332 | ||
781b178c JH |
2333 | d_wait4 (d_wait4.U): |
2334 | This variable conditionally defines the HAS_WAIT4 symbol, which | |
2335 | indicates the wait4() routine is available. | |
2336 | ||
2337 | d_waitpid (d_waitpid.U): | |
2338 | This variable conditionally defines HAS_WAITPID if waitpid() is | |
2339 | available to wait for child process. | |
2340 | ||
2341 | d_wcstombs (d_wcstombs.U): | |
2342 | This variable conditionally defines the HAS_WCSTOMBS symbol, which | |
2343 | indicates to the C program that the wcstombs() routine is available | |
2344 | to convert wide character strings to multibyte strings. | |
2345 | ||
2346 | d_wctomb (d_wctomb.U): | |
2347 | This variable conditionally defines the HAS_WCTOMB symbol, which | |
2348 | indicates to the C program that the wctomb() routine is available | |
2349 | to convert a wide character to a multibyte. | |
2350 | ||
4e0554ec JH |
2351 | d_writev (d_writev.U): |
2352 | This variable conditionally defines the HAS_WRITEV symbol, which | |
2353 | indicates to the C program that the writev() routine is available. | |
2354 | ||
781b178c JH |
2355 | d_xenix (Guess.U): |
2356 | This variable conditionally defines the symbol XENIX, which alerts | |
2357 | the C program that it runs under Xenix. | |
2358 | ||
2359 | date (Loc.U): | |
5bf26616 | 2360 | This variable is used internally by Configure to determine the |
781b178c JH |
2361 | full pathname (if any) of the date program. After Configure runs, |
2362 | the value is reset to a plain "date" and is not useful. | |
2363 | ||
2364 | db_hashtype (i_db.U): | |
2365 | This variable contains the type of the hash structure element | |
2366 | in the <db.h> header file. In older versions of DB, it was | |
2367 | int, while in newer ones it is u_int32_t. | |
2368 | ||
2369 | db_prefixtype (i_db.U): | |
2370 | This variable contains the type of the prefix structure element | |
2371 | in the <db.h> header file. In older versions of DB, it was | |
2372 | int, while in newer ones it is size_t. | |
2373 | ||
640374d0 JH |
2374 | db_version_major (i_db.U): |
2375 | This variable contains the major version number of | |
2376 | Berkeley DB found in the <db.h> header file. | |
2377 | ||
2378 | db_version_minor (i_db.U): | |
2379 | This variable contains the minor version number of | |
2380 | Berkeley DB found in the <db.h> header file. | |
2381 | For DB version 1 this is always 0. | |
2382 | ||
2383 | db_version_patch (i_db.U): | |
2384 | This variable contains the patch version number of | |
2385 | Berkeley DB found in the <db.h> header file. | |
2386 | For DB version 1 this is always 0. | |
2387 | ||
781b178c JH |
2388 | defvoidused (voidflags.U): |
2389 | This variable contains the default value of the VOIDUSED symbol (15). | |
2390 | ||
2391 | direntrytype (i_dirent.U): | |
2392 | This symbol is set to 'struct direct' or 'struct dirent' depending on | |
2393 | whether dirent is available or not. You should use this pseudo type to | |
2394 | portably declare your directory entries. | |
2395 | ||
2396 | dlext (dlext.U): | |
2397 | This variable contains the extension that is to be used for the | |
2398 | dynamically loaded modules that perl generaties. | |
2399 | ||
2400 | dlsrc (dlsrc.U): | |
2401 | This variable contains the name of the dynamic loading file that | |
2402 | will be used with the package. | |
2403 | ||
2404 | doublesize (doublesize.U): | |
2405 | This variable contains the value of the DOUBLESIZE symbol, which | |
2406 | indicates to the C program how many bytes there are in a double. | |
2407 | ||
2408 | drand01 (randfunc.U): | |
2409 | Indicates the macro to be used to generate normalized | |
2410 | random numbers. Uses randfunc, often divided by | |
2411 | (double) (((unsigned long) 1 << randbits)) in order to | |
2412 | normalize the result. | |
2413 | In C programs, the macro 'Drand01' is mapped to drand01. | |
2414 | ||
10bc17b6 JH |
2415 | drand48_r_proto (d_drand48_r.U): |
2416 | This variable encodes the prototype of drand48_r. | |
39183afa JH |
2417 | It is zero if d_drand48_r is undef, and one of the |
2418 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_drand48_r | |
2419 | is defined. | |
10bc17b6 | 2420 | |
781b178c JH |
2421 | dynamic_ext (Extensions.U): |
2422 | This variable holds a list of XS extension files we want to | |
2423 | link dynamically into the package. It is used by Makefile. | |
2424 | ||
2425 | eagain (nblock_io.U): | |
2426 | This variable bears the symbolic errno code set by read() when no | |
2427 | data is present on the file and non-blocking I/O was enabled (otherwise, | |
2428 | read() blocks naturally). | |
2429 | ||
2430 | ebcdic (ebcdic.U): | |
2431 | This variable conditionally defines EBCDIC if this | |
2432 | system uses EBCDIC encoding. Among other things, this | |
2433 | means that the character ranges are not contiguous. | |
2434 | See trnl.U | |
2435 | ||
2436 | echo (Loc.U): | |
5bf26616 | 2437 | This variable is used internally by Configure to determine the |
781b178c JH |
2438 | full pathname (if any) of the echo program. After Configure runs, |
2439 | the value is reset to a plain "echo" and is not useful. | |
2440 | ||
2441 | egrep (Loc.U): | |
5bf26616 | 2442 | This variable is used internally by Configure to determine the |
781b178c JH |
2443 | full pathname (if any) of the egrep program. After Configure runs, |
2444 | the value is reset to a plain "egrep" and is not useful. | |
2445 | ||
2446 | emacs (Loc.U): | |
2447 | This variable is defined but not used by Configure. | |
2448 | The value is a plain '' and is not useful. | |
2449 | ||
10bc17b6 JH |
2450 | endgrent_r_proto (d_endgrent_r.U): |
2451 | This variable encodes the prototype of endgrent_r. | |
39183afa JH |
2452 | It is zero if d_endgrent_r is undef, and one of the |
2453 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_endgrent_r | |
2454 | is defined. | |
10bc17b6 JH |
2455 | |
2456 | endhostent_r_proto (d_endhostent_r.U): | |
2457 | This variable encodes the prototype of endhostent_r. | |
39183afa JH |
2458 | It is zero if d_endhostent_r is undef, and one of the |
2459 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_endhostent_r | |
2460 | is defined. | |
10bc17b6 JH |
2461 | |
2462 | endnetent_r_proto (d_endnetent_r.U): | |
2463 | This variable encodes the prototype of endnetent_r. | |
39183afa JH |
2464 | It is zero if d_endnetent_r is undef, and one of the |
2465 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_endnetent_r | |
2466 | is defined. | |
10bc17b6 JH |
2467 | |
2468 | endprotoent_r_proto (d_endprotoent_r.U): | |
2469 | This variable encodes the prototype of endprotoent_r. | |
39183afa JH |
2470 | It is zero if d_endprotoent_r is undef, and one of the |
2471 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_endprotoent_r | |
2472 | is defined. | |
10bc17b6 JH |
2473 | |
2474 | endpwent_r_proto (d_endpwent_r.U): | |
2475 | This variable encodes the prototype of endpwent_r. | |
39183afa JH |
2476 | It is zero if d_endpwent_r is undef, and one of the |
2477 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_endpwent_r | |
2478 | is defined. | |
10bc17b6 JH |
2479 | |
2480 | endservent_r_proto (d_endservent_r.U): | |
2481 | This variable encodes the prototype of endservent_r. | |
39183afa JH |
2482 | It is zero if d_endservent_r is undef, and one of the |
2483 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_endservent_r | |
2484 | is defined. | |
10bc17b6 | 2485 | |
781b178c JH |
2486 | eunicefix (Init.U): |
2487 | When running under Eunice this variable contains a command which will | |
2488 | convert a shell script to the proper form of text file for it to be | |
2489 | executable by the shell. On other systems it is a no-op. | |
2490 | ||
2491 | exe_ext (Unix.U): | |
2492 | This is an old synonym for _exe. | |
2493 | ||
2494 | expr (Loc.U): | |
5bf26616 | 2495 | This variable is used internally by Configure to determine the |
781b178c JH |
2496 | full pathname (if any) of the expr program. After Configure runs, |
2497 | the value is reset to a plain "expr" and is not useful. | |
2498 | ||
2499 | extensions (Extensions.U): | |
2500 | This variable holds a list of all extension files (both XS and | |
2501 | non-xs linked into the package. It is propagated to Config.pm | |
635aebb7 | 2502 | and is typically used to test whether a particular extesion |
781b178c JH |
2503 | is available. |
2504 | ||
cb7ddd31 JH |
2505 | extras (Extras.U): |
2506 | This variable holds a list of extra modules to install. | |
2507 | ||
781b178c JH |
2508 | fflushall (fflushall.U): |
2509 | This symbol, if defined, tells that to flush | |
2510 | all pending stdio output one must loop through all | |
2511 | the stdio file handles stored in an array and fflush them. | |
2512 | Note that if fflushNULL is defined, fflushall will not | |
2513 | even be probed for and will be left undefined. | |
2514 | ||
4d54317a JH |
2515 | fflushNULL (fflushall.U): |
2516 | This symbol, if defined, tells that fflush(NULL) does flush | |
2517 | all pending stdio output. | |
2518 | ||
781b178c | 2519 | find (Loc.U): |
ff935051 JH |
2520 | This variable is defined but not used by Configure. |
2521 | The value is a plain '' and is not useful. | |
781b178c JH |
2522 | |
2523 | firstmakefile (Unix.U): | |
2524 | This variable defines the first file searched by make. On unix, | |
2525 | it is makefile (then Makefile). On case-insensitive systems, | |
2526 | it might be something else. This is only used to deal with | |
2527 | convoluted make depend tricks. | |
2528 | ||
2529 | flex (Loc.U): | |
2530 | This variable is defined but not used by Configure. | |
2531 | The value is a plain '' and is not useful. | |
2532 | ||
a22e52b9 JH |
2533 | fpossize (fpossize.U): |
2534 | This variable contains the size of a fpostype in bytes. | |
2535 | ||
781b178c | 2536 | fpostype (fpostype.U): |
635aebb7 | 2537 | This variable defines Fpos_t to be something like fpos_t, long, |
781b178c JH |
2538 | uint, or whatever type is used to declare file positions in libc. |
2539 | ||
2540 | freetype (mallocsrc.U): | |
2541 | This variable contains the return type of free(). It is usually | |
2542 | void, but occasionally int. | |
2543 | ||
5440bc8e JH |
2544 | from (Cross.U): |
2545 | This variable contains the command used by Configure | |
2546 | to copy files from the target host. Useful and available | |
2547 | only during Perl build. | |
2548 | The string ':' if not cross-compiling. | |
2549 | ||
781b178c JH |
2550 | full_ar (Loc_ar.U): |
2551 | This variable contains the full pathname to 'ar', whether or | |
2552 | not the user has specified 'portability'. This is only used | |
2553 | in the Makefile.SH. | |
2554 | ||
2555 | full_csh (d_csh.U): | |
2556 | This variable contains the full pathname to 'csh', whether or | |
2557 | not the user has specified 'portability'. This is only used | |
2558 | in the compiled C program, and we assume that all systems which | |
2559 | can share this executable will have the same full pathname to | |
2560 | 'csh.' | |
2561 | ||
2562 | full_sed (Loc_sed.U): | |
2563 | This variable contains the full pathname to 'sed', whether or | |
2564 | not the user has specified 'portability'. This is only used | |
2565 | in the compiled C program, and we assume that all systems which | |
2566 | can share this executable will have the same full pathname to | |
2567 | 'sed.' | |
2568 | ||
123f32c0 MB |
2569 | gccansipedantic (gccvers.U): |
2570 | If GNU cc (gcc) is used, this variable will enable (if set) the | |
2571 | -ansi and -pedantic ccflags for building core files (through | |
2572 | cflags script). (See Porting/pumpkin.pod for full description). | |
2573 | ||
af960fef | 2574 | gccosandvers (gccvers.U): |
123f32c0 MB |
2575 | If GNU cc (gcc) is used, this variable holds the operating system |
2576 | and version used to compile gcc. It is set to '' if not gcc, | |
af960fef JH |
2577 | or if nothing useful can be parsed as the os version. |
2578 | ||
2579 | gccversion (gccvers.U): | |
123f32c0 | 2580 | If GNU cc (gcc) is used, this variable holds '1' or '2' to |
781b178c JH |
2581 | indicate whether the compiler is version 1 or 2. This is used in |
2582 | setting some of the default cflags. It is set to '' if not gcc. | |
2583 | ||
10bc17b6 JH |
2584 | getgrent_r_proto (d_getgrent_r.U): |
2585 | This variable encodes the prototype of getgrent_r. | |
39183afa JH |
2586 | It is zero if d_getgrent_r is undef, and one of the |
2587 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrent_r | |
2588 | is defined. | |
10bc17b6 JH |
2589 | |
2590 | getgrgid_r_proto (d_getgrgid_r.U): | |
2591 | This variable encodes the prototype of getgrgid_r. | |
39183afa JH |
2592 | It is zero if d_getgrgid_r is undef, and one of the |
2593 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrgid_r | |
2594 | is defined. | |
10bc17b6 JH |
2595 | |
2596 | getgrnam_r_proto (d_getgrnam_r.U): | |
2597 | This variable encodes the prototype of getgrnam_r. | |
39183afa JH |
2598 | It is zero if d_getgrnam_r is undef, and one of the |
2599 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_getgrnam_r | |
2600 | is defined. | |
10bc17b6 JH |
2601 | |
2602 | gethostbyaddr_r_proto (d_gethostbyaddr_r.U): | |
2603 | This variable encodes the prototype of gethostbyaddr_r. | |
39183afa JH |
2604 | It is zero if d_gethostbyaddr_r is undef, and one of the |
2605 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyaddr_r | |
2606 | is defined. | |
10bc17b6 JH |
2607 | |
2608 | gethostbyname_r_proto (d_gethostbyname_r.U): | |
2609 | This variable encodes the prototype of gethostbyname_r. | |
39183afa JH |
2610 | It is zero if d_gethostbyname_r is undef, and one of the |
2611 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostbyname_r | |
2612 | is defined. | |
10bc17b6 JH |
2613 | |
2614 | gethostent_r_proto (d_gethostent_r.U): | |
2615 | This variable encodes the prototype of gethostent_r. | |
39183afa JH |
2616 | It is zero if d_gethostent_r is undef, and one of the |
2617 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_gethostent_r | |
2618 | is defined. | |
10bc17b6 JH |
2619 | |
2620 | getlogin_r_proto (d_getlogin_r.U): | |
2621 | This variable encodes the prototype of getlogin_r. | |
39183afa JH |
2622 | It is zero if d_getlogin_r is undef, and one of the |
2623 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_getlogin_r | |
2624 | is defined. | |
10bc17b6 JH |
2625 | |
2626 | getnetbyaddr_r_proto (d_getnetbyaddr_r.U): | |
2627 | This variable encodes the prototype of getnetbyaddr_r. | |
39183afa JH |
2628 | It is zero if d_getnetbyaddr_r is undef, and one of the |
2629 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyaddr_r | |
2630 | is defined. | |
10bc17b6 JH |
2631 | |
2632 | getnetbyname_r_proto (d_getnetbyname_r.U): | |
2633 | This variable encodes the prototype of getnetbyname_r. | |
39183afa JH |
2634 | It is zero if d_getnetbyname_r is undef, and one of the |
2635 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetbyname_r | |
2636 | is defined. | |
10bc17b6 JH |
2637 | |
2638 | getnetent_r_proto (d_getnetent_r.U): | |
2639 | This variable encodes the prototype of getnetent_r. | |
39183afa JH |
2640 | It is zero if d_getnetent_r is undef, and one of the |
2641 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_getnetent_r | |
2642 | is defined. | |
10bc17b6 JH |
2643 | |
2644 | getprotobyname_r_proto (d_getprotobyname_r.U): | |
2645 | This variable encodes the prototype of getprotobyname_r. | |
39183afa JH |
2646 | It is zero if d_getprotobyname_r is undef, and one of the |
2647 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobyname_r | |
2648 | is defined. | |
10bc17b6 JH |
2649 | |
2650 | getprotobynumber_r_proto (d_getprotobynumber_r.U): | |
2651 | This variable encodes the prototype of getprotobynumber_r. | |
39183afa JH |
2652 | It is zero if d_getprotobynumber_r is undef, and one of the |
2653 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotobynumber_r | |
2654 | is defined. | |
10bc17b6 JH |
2655 | |
2656 | getprotoent_r_proto (d_getprotoent_r.U): | |
2657 | This variable encodes the prototype of getprotoent_r. | |
39183afa JH |
2658 | It is zero if d_getprotoent_r is undef, and one of the |
2659 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_getprotoent_r | |
2660 | is defined. | |
10bc17b6 JH |
2661 | |
2662 | getpwent_r_proto (d_getpwent_r.U): | |
2663 | This variable encodes the prototype of getpwent_r. | |
39183afa JH |
2664 | It is zero if d_getpwent_r is undef, and one of the |
2665 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwent_r | |
2666 | is defined. | |
10bc17b6 JH |
2667 | |
2668 | getpwnam_r_proto (d_getpwnam_r.U): | |
2669 | This variable encodes the prototype of getpwnam_r. | |
39183afa JH |
2670 | It is zero if d_getpwnam_r is undef, and one of the |
2671 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwnam_r | |
2672 | is defined. | |
10bc17b6 JH |
2673 | |
2674 | getpwuid_r_proto (d_getpwuid_r.U): | |
2675 | This variable encodes the prototype of getpwuid_r. | |
39183afa JH |
2676 | It is zero if d_getpwuid_r is undef, and one of the |
2677 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_getpwuid_r | |
2678 | is defined. | |
10bc17b6 JH |
2679 | |
2680 | getservbyname_r_proto (d_getservbyname_r.U): | |
2681 | This variable encodes the prototype of getservbyname_r. | |
39183afa JH |
2682 | It is zero if d_getservbyname_r is undef, and one of the |
2683 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyname_r | |
2684 | is defined. | |
10bc17b6 JH |
2685 | |
2686 | getservbyport_r_proto (d_getservbyport_r.U): | |
2687 | This variable encodes the prototype of getservbyport_r. | |
39183afa JH |
2688 | It is zero if d_getservbyport_r is undef, and one of the |
2689 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservbyport_r | |
2690 | is defined. | |
10bc17b6 JH |
2691 | |
2692 | getservent_r_proto (d_getservent_r.U): | |
2693 | This variable encodes the prototype of getservent_r. | |
39183afa JH |
2694 | It is zero if d_getservent_r is undef, and one of the |
2695 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_getservent_r | |
2696 | is defined. | |
10bc17b6 JH |
2697 | |
2698 | getspnam_r_proto (d_getspnam_r.U): | |
2699 | This variable encodes the prototype of getspnam_r. | |
39183afa JH |
2700 | It is zero if d_getspnam_r is undef, and one of the |
2701 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_getspnam_r | |
2702 | is defined. | |
10bc17b6 | 2703 | |
a22e52b9 JH |
2704 | gidformat (gidf.U): |
2705 | This variable contains the format string used for printing a Gid_t. | |
2706 | ||
785fb66b JH |
2707 | gidsign (gidsign.U): |
2708 | This variable contains the signedness of a gidtype. | |
2709 | 1 for unsigned, -1 for signed. | |
2710 | ||
2711 | gidsize (gidsize.U): | |
2712 | This variable contains the size of a gidtype in bytes. | |
2713 | ||
781b178c JH |
2714 | gidtype (gidtype.U): |
2715 | This variable defines Gid_t to be something like gid_t, int, | |
2716 | ushort, or whatever type is used to declare the return type | |
2717 | of getgid(). Typically, it is the type of group ids in the kernel. | |
2718 | ||
2719 | glibpth (libpth.U): | |
2720 | This variable holds the general path (space-separated) used to | |
2721 | find libraries. It may contain directories that do not exist on | |
2722 | this platform, libpth is the cleaned-up version. | |
2723 | ||
c68a00c0 JH |
2724 | gmake (Loc.U): |
2725 | This variable is used internally by Configure to determine the | |
2726 | full pathname (if any) of the gmake program. After Configure runs, | |
2727 | the value is reset to a plain "gmake" and is not useful. | |
2728 | ||
10bc17b6 JH |
2729 | gmtime_r_proto (d_gmtime_r.U): |
2730 | This variable encodes the prototype of gmtime_r. | |
39183afa JH |
2731 | It is zero if d_gmtime_r is undef, and one of the |
2732 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_gmtime_r | |
2733 | is defined. | |
10bc17b6 | 2734 | |
00fac743 JH |
2735 | gnulibc_version (d_gnulibc.U): |
2736 | This variable contains the version number of the GNU C library. | |
2737 | It is usually something like '2.2.5'. It is a plain '' if this | |
2738 | is not the GNU C library, or if the version is unknown. | |
2739 | ||
781b178c | 2740 | grep (Loc.U): |
5bf26616 | 2741 | This variable is used internally by Configure to determine the |
781b178c JH |
2742 | full pathname (if any) of the grep program. After Configure runs, |
2743 | the value is reset to a plain "grep" and is not useful. | |
2744 | ||
2745 | groupcat (nis.U): | |
2746 | This variable contains a command that produces the text of the | |
2747 | /etc/group file. This is normally "cat /etc/group", but can be | |
2748 | "ypcat group" when NIS is used. | |
aaacdc8b GS |
2749 | On some systems, such as os390, there may be no equivalent |
2750 | command, in which case this variable is unset. | |
781b178c JH |
2751 | |
2752 | groupstype (groupstype.U): | |
635aebb7 | 2753 | This variable defines Groups_t to be something like gid_t, int, |
781b178c JH |
2754 | ushort, or whatever type is used for the second argument to |
2755 | getgroups() and setgroups(). Usually, this is the same as | |
2756 | gidtype (gid_t), but sometimes it isn't. | |
2757 | ||
2758 | gzip (Loc.U): | |
5bf26616 | 2759 | This variable is used internally by Configure to determine the |
781b178c JH |
2760 | full pathname (if any) of the gzip program. After Configure runs, |
2761 | the value is reset to a plain "gzip" and is not useful. | |
2762 | ||
2763 | h_fcntl (h_fcntl.U): | |
2764 | This is variable gets set in various places to tell i_fcntl that | |
2765 | <fcntl.h> should be included. | |
2766 | ||
2767 | h_sysfile (h_sysfile.U): | |
2768 | This is variable gets set in various places to tell i_sys_file that | |
2769 | <sys/file.h> should be included. | |
2770 | ||
2771 | hint (Oldconfig.U): | |
2772 | Gives the type of hints used for previous answers. May be one of | |
2773 | "default", "recommended" or "previous". | |
2774 | ||
2775 | hostcat (nis.U): | |
2776 | This variable contains a command that produces the text of the | |
2777 | /etc/hosts file. This is normally "cat /etc/hosts", but can be | |
2778 | "ypcat hosts" when NIS is used. | |
aaacdc8b GS |
2779 | On some systems, such as os390, there may be no equivalent |
2780 | command, in which case this variable is unset. | |
781b178c | 2781 | |
10305dfa JH |
2782 | html1dir (html1dir.U): |
2783 | This variable contains the name of the directory in which html | |
2784 | source pages are to be put. This directory is for pages | |
2785 | that describe whole programs, not libraries or modules. It | |
2786 | is intended to correspond roughly to section 1 of the Unix | |
2787 | manuals. | |
2788 | ||
2789 | html1direxp (html1dir.U): | |
2790 | This variable is the same as the html1dir variable, but is filename | |
2791 | expanded at configuration time, for convenient use in makefiles. | |
2792 | ||
2793 | html3dir (html3dir.U): | |
2794 | This variable contains the name of the directory in which html | |
2795 | source pages are to be put. This directory is for pages | |
2796 | that describe libraries or modules. It is intended to | |
2797 | correspond roughly to section 3 of the Unix manuals. | |
2798 | ||
2799 | html3direxp (html3dir.U): | |
2800 | This variable is the same as the html3dir variable, but is filename | |
2801 | expanded at configuration time, for convenient use in makefiles. | |
2802 | ||
a22e52b9 JH |
2803 | i16size (perlxv.U): |
2804 | This variable is the size of an I16 in bytes. | |
2805 | ||
2806 | i16type (perlxv.U): | |
2807 | This variable contains the C type used for Perl's I16. | |
2808 | ||
2809 | i32size (perlxv.U): | |
2810 | This variable is the size of an I32 in bytes. | |
2811 | ||
2812 | i32type (perlxv.U): | |
2813 | This variable contains the C type used for Perl's I32. | |
2814 | ||
2815 | i64size (perlxv.U): | |
2816 | This variable is the size of an I64 in bytes. | |
2817 | ||
2818 | i64type (perlxv.U): | |
2819 | This variable contains the C type used for Perl's I64. | |
2820 | ||
2821 | i8size (perlxv.U): | |
2822 | This variable is the size of an I8 in bytes. | |
2823 | ||
2824 | i8type (perlxv.U): | |
2825 | This variable contains the C type used for Perl's I8. | |
2826 | ||
781b178c JH |
2827 | i_arpainet (i_arpainet.U): |
2828 | This variable conditionally defines the I_ARPA_INET symbol, | |
2829 | and indicates whether a C program should include <arpa/inet.h>. | |
2830 | ||
2831 | i_bsdioctl (i_sysioctl.U): | |
2832 | This variable conditionally defines the I_SYS_BSDIOCTL symbol, which | |
2833 | indicates to the C program that <sys/bsdioctl.h> exists and should | |
2834 | be included. | |
2835 | ||
10bc17b6 JH |
2836 | i_crypt (i_crypt.U): |
2837 | This variable conditionally defines the I_CRYPT symbol, and indicates | |
2838 | whether a C program should include <crypt.h>. | |
2839 | ||
781b178c JH |
2840 | i_db (i_db.U): |
2841 | This variable conditionally defines the I_DB symbol, and indicates | |
2842 | whether a C program may include Berkeley's DB include file <db.h>. | |
2843 | ||
2844 | i_dbm (i_dbm.U): | |
2845 | This variable conditionally defines the I_DBM symbol, which | |
2846 | indicates to the C program that <dbm.h> exists and should | |
2847 | be included. | |
2848 | ||
2849 | i_dirent (i_dirent.U): | |
2850 | This variable conditionally defines I_DIRENT, which indicates | |
2851 | to the C program that it should include <dirent.h>. | |
2852 | ||
2853 | i_dld (i_dld.U): | |
2854 | This variable conditionally defines the I_DLD symbol, which | |
2855 | indicates to the C program that <dld.h> (GNU dynamic loading) | |
2856 | exists and should be included. | |
2857 | ||
2858 | i_dlfcn (i_dlfcn.U): | |
2859 | This variable conditionally defines the I_DLFCN symbol, which | |
2860 | indicates to the C program that <dlfcn.h> exists and should | |
2861 | be included. | |
2862 | ||
2863 | i_fcntl (i_fcntl.U): | |
2864 | This variable controls the value of I_FCNTL (which tells | |
2865 | the C program to include <fcntl.h>). | |
2866 | ||
2867 | i_float (i_float.U): | |
2868 | This variable conditionally defines the I_FLOAT symbol, and indicates | |
2869 | whether a C program may include <float.h> to get symbols like DBL_MAX | |
2870 | or DBL_MIN, i.e. machine dependent floating point values. | |
2871 | ||
758a5d79 JH |
2872 | i_fp (i_fp.U): |
2873 | This variable conditionally defines the I_FP symbol, and indicates | |
2874 | whether a C program should include <fp.h>. | |
2875 | ||
2876 | i_fp_class (i_fp_class.U): | |
2877 | This variable conditionally defines the I_FP_CLASS symbol, and indicates | |
2878 | whether a C program should include <fp_class.h>. | |
2879 | ||
781b178c JH |
2880 | i_gdbm (i_gdbm.U): |
2881 | This variable conditionally defines the I_GDBM symbol, which | |
2882 | indicates to the C program that <gdbm.h> exists and should | |
2883 | be included. | |
2884 | ||
2885 | i_grp (i_grp.U): | |
2886 | This variable conditionally defines the I_GRP symbol, and indicates | |
2887 | whether a C program should include <grp.h>. | |
2888 | ||
792d8dab JH |
2889 | i_ieeefp (i_ieeefp.U): |
2890 | This variable conditionally defines the I_IEEEFP symbol, and indicates | |
2891 | whether a C program should include <ieeefp.h>. | |
2892 | ||
781b178c JH |
2893 | i_inttypes (i_inttypes.U): |
2894 | This variable conditionally defines the I_INTTYPES symbol, | |
2895 | and indicates whether a C program should include <inttypes.h>. | |
2896 | ||
2765b840 JH |
2897 | i_langinfo (i_langinfo.U): |
2898 | This variable conditionally defines the I_LANGINFO symbol, | |
2899 | and indicates whether a C program should include <langinfo.h>. | |
2900 | ||
af960fef JH |
2901 | i_libutil (i_libutil.U): |
2902 | This variable conditionally defines the I_LIBUTIL symbol, and indicates | |
2903 | whether a C program should include <libutil.h>. | |
2904 | ||
781b178c JH |
2905 | i_limits (i_limits.U): |
2906 | This variable conditionally defines the I_LIMITS symbol, and indicates | |
2907 | whether a C program may include <limits.h> to get symbols like WORD_BIT | |
2908 | and friends. | |
2909 | ||
2910 | i_locale (i_locale.U): | |
2911 | This variable conditionally defines the I_LOCALE symbol, | |
2912 | and indicates whether a C program should include <locale.h>. | |
2913 | ||
2914 | i_machcthr (i_machcthr.U): | |
2915 | This variable conditionally defines the I_MACH_CTHREADS symbol, | |
2916 | and indicates whether a C program should include <mach/cthreads.h>. | |
2917 | ||
2918 | i_malloc (i_malloc.U): | |
2919 | This variable conditionally defines the I_MALLOC symbol, and indicates | |
2920 | whether a C program should include <malloc.h>. | |
2921 | ||
2922 | i_math (i_math.U): | |
2923 | This variable conditionally defines the I_MATH symbol, and indicates | |
2924 | whether a C program may include <math.h>. | |
2925 | ||
2926 | i_memory (i_memory.U): | |
2927 | This variable conditionally defines the I_MEMORY symbol, and indicates | |
2928 | whether a C program should include <memory.h>. | |
2929 | ||
2930 | i_mntent (i_mntent.U): | |
2931 | This variable conditionally defines the I_MNTENT symbol, and indicates | |
2932 | whether a C program should include <mntent.h>. | |
2933 | ||
2934 | i_ndbm (i_ndbm.U): | |
2935 | This variable conditionally defines the I_NDBM symbol, which | |
2936 | indicates to the C program that <ndbm.h> exists and should | |
2937 | be included. | |
2938 | ||
2939 | i_netdb (i_netdb.U): | |
2940 | This variable conditionally defines the I_NETDB symbol, and indicates | |
2941 | whether a C program should include <netdb.h>. | |
2942 | ||
2943 | i_neterrno (i_neterrno.U): | |
2944 | This variable conditionally defines the I_NET_ERRNO symbol, which | |
2945 | indicates to the C program that <net/errno.h> exists and should | |
2946 | be included. | |
2947 | ||
2948 | i_netinettcp (i_netinettcp.U): | |
2949 | This variable conditionally defines the I_NETINET_TCP symbol, | |
2950 | and indicates whether a C program should include <netinet/tcp.h>. | |
2951 | ||
2952 | i_niin (i_niin.U): | |
2953 | This variable conditionally defines I_NETINET_IN, which indicates | |
2954 | to the C program that it should include <netinet/in.h>. Otherwise, | |
2955 | you may try <sys/in.h>. | |
2956 | ||
2957 | i_poll (i_poll.U): | |
2958 | This variable conditionally defines the I_POLL symbol, and indicates | |
2959 | whether a C program should include <poll.h>. | |
2960 | ||
3813c136 JH |
2961 | i_prot (i_prot.U): |
2962 | This variable conditionally defines the I_PROT symbol, and indicates | |
2963 | whether a C program should include <prot.h>. | |
2964 | ||
781b178c | 2965 | i_pthread (i_pthread.U): |
190b66db | 2966 | This variable conditionally defines the I_PTHREAD symbol, |
781b178c JH |
2967 | and indicates whether a C program should include <pthread.h>. |
2968 | ||
2969 | i_pwd (i_pwd.U): | |
2970 | This variable conditionally defines I_PWD, which indicates | |
2971 | to the C program that it should include <pwd.h>. | |
2972 | ||
2973 | i_rpcsvcdbm (i_dbm.U): | |
2974 | This variable conditionally defines the I_RPCSVC_DBM symbol, which | |
2975 | indicates to the C program that <rpcsvc/dbm.h> exists and should | |
2976 | be included. Some System V systems might need this instead of <dbm.h>. | |
2977 | ||
2978 | i_sfio (i_sfio.U): | |
2979 | This variable conditionally defines the I_SFIO symbol, | |
2980 | and indicates whether a C program should include <sfio.h>. | |
2981 | ||
2982 | i_sgtty (i_termio.U): | |
2983 | This variable conditionally defines the I_SGTTY symbol, which | |
2984 | indicates to the C program that it should include <sgtty.h> rather | |
2985 | than <termio.h>. | |
2986 | ||
2987 | i_shadow (i_shadow.U): | |
2988 | This variable conditionally defines the I_SHADOW symbol, and indicates | |
2989 | whether a C program should include <shadow.h>. | |
2990 | ||
2991 | i_socks (i_socks.U): | |
2992 | This variable conditionally defines the I_SOCKS symbol, and indicates | |
2993 | whether a C program should include <socks.h>. | |
2994 | ||
2995 | i_stdarg (i_varhdr.U): | |
2996 | This variable conditionally defines the I_STDARG symbol, which | |
2997 | indicates to the C program that <stdarg.h> exists and should | |
2998 | be included. | |
2999 | ||
3000 | i_stddef (i_stddef.U): | |
3001 | This variable conditionally defines the I_STDDEF symbol, which | |
3002 | indicates to the C program that <stddef.h> exists and should | |
3003 | be included. | |
3004 | ||
3005 | i_stdlib (i_stdlib.U): | |
3006 | This variable conditionally defines the I_STDLIB symbol, which | |
3007 | indicates to the C program that <stdlib.h> exists and should | |
3008 | be included. | |
3009 | ||
3010 | i_string (i_string.U): | |
3011 | This variable conditionally defines the I_STRING symbol, which | |
3012 | indicates that <string.h> should be included rather than <strings.h>. | |
3013 | ||
792d8dab JH |
3014 | i_sunmath (i_sunmath.U): |
3015 | This variable conditionally defines the I_SUNMATH symbol, and indicates | |
3016 | whether a C program should include <sunmath.h>. | |
3017 | ||
781b178c JH |
3018 | i_sysaccess (i_sysaccess.U): |
3019 | This variable conditionally defines the I_SYS_ACCESS symbol, | |
3020 | and indicates whether a C program should include <sys/access.h>. | |
3021 | ||
3022 | i_sysdir (i_sysdir.U): | |
3023 | This variable conditionally defines the I_SYS_DIR symbol, and indicates | |
3024 | whether a C program should include <sys/dir.h>. | |
3025 | ||
3026 | i_sysfile (i_sysfile.U): | |
3027 | This variable conditionally defines the I_SYS_FILE symbol, and indicates | |
3028 | whether a C program should include <sys/file.h> to get R_OK and friends. | |
3029 | ||
3030 | i_sysfilio (i_sysioctl.U): | |
3031 | This variable conditionally defines the I_SYS_FILIO symbol, which | |
3032 | indicates to the C program that <sys/filio.h> exists and should | |
3033 | be included in preference to <sys/ioctl.h>. | |
3034 | ||
3035 | i_sysin (i_niin.U): | |
3036 | This variable conditionally defines I_SYS_IN, which indicates | |
3037 | to the C program that it should include <sys/in.h> instead of | |
3038 | <netinet/in.h>. | |
3039 | ||
3040 | i_sysioctl (i_sysioctl.U): | |
3041 | This variable conditionally defines the I_SYS_IOCTL symbol, which | |
3042 | indicates to the C program that <sys/ioctl.h> exists and should | |
3043 | be included. | |
3044 | ||
ca52efda JH |
3045 | i_syslog (i_syslog.U): |
3046 | This variable conditionally defines the I_SYSLOG symbol, | |
3047 | and indicates whether a C program should include <syslog.h>. | |
3048 | ||
fe749a9f JH |
3049 | i_sysmman (i_sysmman.U): |
3050 | This variable conditionally defines the I_SYS_MMAN symbol, and | |
3051 | indicates whether a C program should include <sys/mman.h>. | |
3052 | ||
87b71857 JH |
3053 | i_sysmode (i_sysmode.U): |
3054 | This variable conditionally defines the I_SYSMODE symbol, | |
3055 | and indicates whether a C program should include <sys/mode.h>. | |
3056 | ||
781b178c JH |
3057 | i_sysmount (i_sysmount.U): |
3058 | This variable conditionally defines the I_SYSMOUNT symbol, | |
3059 | and indicates whether a C program should include <sys/mount.h>. | |
3060 | ||
3061 | i_sysndir (i_sysndir.U): | |
3062 | This variable conditionally defines the I_SYS_NDIR symbol, and indicates | |
3063 | whether a C program should include <sys/ndir.h>. | |
3064 | ||
3065 | i_sysparam (i_sysparam.U): | |
3066 | This variable conditionally defines the I_SYS_PARAM symbol, and indicates | |
3067 | whether a C program should include <sys/param.h>. | |
3068 | ||
3069 | i_sysresrc (i_sysresrc.U): | |
3070 | This variable conditionally defines the I_SYS_RESOURCE symbol, | |
3071 | and indicates whether a C program should include <sys/resource.h>. | |
3072 | ||
3073 | i_syssecrt (i_syssecrt.U): | |
3074 | This variable conditionally defines the I_SYS_SECURITY symbol, | |
3075 | and indicates whether a C program should include <sys/security.h>. | |
3076 | ||
3077 | i_sysselct (i_sysselct.U): | |
3078 | This variable conditionally defines I_SYS_SELECT, which indicates | |
3079 | to the C program that it should include <sys/select.h> in order to | |
3080 | get the definition of struct timeval. | |
3081 | ||
3082 | i_syssockio (i_sysioctl.U): | |
3083 | This variable conditionally defines I_SYS_SOCKIO to indicate to the | |
3084 | C program that socket ioctl codes may be found in <sys/sockio.h> | |
3085 | instead of <sys/ioctl.h>. | |
3086 | ||
3087 | i_sysstat (i_sysstat.U): | |
3088 | This variable conditionally defines the I_SYS_STAT symbol, | |
3089 | and indicates whether a C program should include <sys/stat.h>. | |
3090 | ||
0545a864 JH |
3091 | i_sysstatfs (i_sysstatfs.U): |
3092 | This variable conditionally defines the I_SYSSTATFS symbol, | |
3093 | and indicates whether a C program should include <sys/statfs.h>. | |
3094 | ||
781b178c JH |
3095 | i_sysstatvfs (i_sysstatvfs.U): |
3096 | This variable conditionally defines the I_SYSSTATVFS symbol, | |
3097 | and indicates whether a C program should include <sys/statvfs.h>. | |
3098 | ||
3099 | i_systime (i_time.U): | |
3100 | This variable conditionally defines I_SYS_TIME, which indicates | |
3101 | to the C program that it should include <sys/time.h>. | |
3102 | ||
3103 | i_systimek (i_time.U): | |
3104 | This variable conditionally defines I_SYS_TIME_KERNEL, which | |
3105 | indicates to the C program that it should include <sys/time.h> | |
3106 | with KERNEL defined. | |
3107 | ||
3108 | i_systimes (i_systimes.U): | |
3109 | This variable conditionally defines the I_SYS_TIMES symbol, and indicates | |
3110 | whether a C program should include <sys/times.h>. | |
3111 | ||
3112 | i_systypes (i_systypes.U): | |
3113 | This variable conditionally defines the I_SYS_TYPES symbol, | |
3114 | and indicates whether a C program should include <sys/types.h>. | |
3115 | ||
3116 | i_sysuio (i_sysuio.U): | |
3117 | This variable conditionally defines the I_SYSUIO symbol, and indicates | |
3118 | whether a C program should include <sys/uio.h>. | |
3119 | ||
3120 | i_sysun (i_sysun.U): | |
3121 | This variable conditionally defines I_SYS_UN, which indicates | |
3122 | to the C program that it should include <sys/un.h> to get UNIX | |
3123 | domain socket definitions. | |
3124 | ||
d4935d7f JH |
3125 | i_sysutsname (i_sysutsname.U): |
3126 | This variable conditionally defines the I_SYSUTSNAME symbol, | |
3127 | and indicates whether a C program should include <sys/utsname.h>. | |
3128 | ||
0545a864 JH |
3129 | i_sysvfs (i_sysvfs.U): |
3130 | This variable conditionally defines the I_SYSVFS symbol, | |
3131 | and indicates whether a C program should include <sys/vfs.h>. | |
3132 | ||
781b178c JH |
3133 | i_syswait (i_syswait.U): |
3134 | This variable conditionally defines I_SYS_WAIT, which indicates | |
3135 | to the C program that it should include <sys/wait.h>. | |
3136 | ||
3137 | i_termio (i_termio.U): | |
3138 | This variable conditionally defines the I_TERMIO symbol, which | |
3139 | indicates to the C program that it should include <termio.h> rather | |
3140 | than <sgtty.h>. | |
3141 | ||
3142 | i_termios (i_termio.U): | |
3143 | This variable conditionally defines the I_TERMIOS symbol, which | |
3144 | indicates to the C program that the POSIX <termios.h> file is | |
3145 | to be included. | |
3146 | ||
3147 | i_time (i_time.U): | |
3148 | This variable conditionally defines I_TIME, which indicates | |
3149 | to the C program that it should include <time.h>. | |
3150 | ||
3151 | i_unistd (i_unistd.U): | |
3152 | This variable conditionally defines the I_UNISTD symbol, and indicates | |
3153 | whether a C program should include <unistd.h>. | |
3154 | ||
0545a864 JH |
3155 | i_ustat (i_ustat.U): |
3156 | This variable conditionally defines the I_USTAT symbol, and indicates | |
3157 | whether a C program should include <ustat.h>. | |
3158 | ||
781b178c JH |
3159 | i_utime (i_utime.U): |
3160 | This variable conditionally defines the I_UTIME symbol, and indicates | |
3161 | whether a C program should include <utime.h>. | |
3162 | ||
3163 | i_values (i_values.U): | |
3164 | This variable conditionally defines the I_VALUES symbol, and indicates | |
3165 | whether a C program may include <values.h> to get symbols like MAXLONG | |
3166 | and friends. | |
3167 | ||
3168 | i_varargs (i_varhdr.U): | |
3169 | This variable conditionally defines I_VARARGS, which indicates | |
3170 | to the C program that it should include <varargs.h>. | |
3171 | ||
3172 | i_varhdr (i_varhdr.U): | |
3173 | Contains the name of the header to be included to get va_dcl definition. | |
3174 | Typically one of varargs.h or stdarg.h. | |
3175 | ||
3176 | i_vfork (i_vfork.U): | |
3177 | This variable conditionally defines the I_VFORK symbol, and indicates | |
3178 | whether a C program should include vfork.h. | |
3179 | ||
3180 | ignore_versioned_solibs (libs.U): | |
3181 | This variable should be non-empty if non-versioned shared | |
3182 | libraries (libfoo.so.x.y) are to be ignored (because they | |
3183 | cannot be linked against). | |
3184 | ||
ff935051 JH |
3185 | inc_version_list (inc_version_list.U): |
3186 | This variable specifies the list of subdirectories in over | |
3187 | which perl.c:incpush() and lib/lib.pm will automatically | |
3a096bf3 JH |
3188 | search when adding directories to @INC. The elements in |
3189 | the list are separated by spaces. This is only useful | |
ff935051 JH |
3190 | if you have a perl library directory tree structured like the |
3191 | default one. See INSTALL for how this works. The versioned | |
3192 | site_perl directory was introduced in 5.005, so that is the | |
3193 | lowest possible value. | |
3194 | ||
df4c34dc MB |
3195 | This list includes architecture-dependent directories back to |
3196 | version $api_versionstring (e.g. 5.5.640) and | |
3197 | architecture-independent directories all the way back to | |
3198 | 5.005. | |
3199 | ||
3a096bf3 JH |
3200 | inc_version_list_init (inc_version_list.U): |
3201 | This variable holds the same list as inc_version_list, but | |
635aebb7 | 3202 | each item is enclosed in double quotes and separated by commas, |
3a096bf3 JH |
3203 | suitable for use in the PERL_INC_VERSION_LIST initialization. |
3204 | ||
781b178c | 3205 | incpath (usrinc.U): |
209e5c0a JH |
3206 | This variable must preceed the normal include path to get hte |
3207 | right one, as in "$incpath/usr/include" or "$incpath/usr/lib". | |
781b178c JH |
3208 | Value can be "" or "/bsd43" on mips. |
3209 | ||
3210 | inews (Loc.U): | |
3211 | This variable is defined but not used by Configure. | |
3212 | The value is a plain '' and is not useful. | |
3213 | ||
df4c34dc MB |
3214 | initialinstalllocation (bin.U): |
3215 | When userelocatableinc is true, this variable holds the location | |
3216 | that make install should copy the perl binary to, with all the | |
3217 | run-time relocatable paths calculated from this at install time. | |
3218 | When used, it is initialised to the original value of binexp, and | |
3219 | then binexp is set to '.../', as the other binaries are found | |
3220 | relative to the perl binary. | |
3221 | ||
781b178c JH |
3222 | installarchlib (archlib.U): |
3223 | This variable is really the same as archlibexp but may differ on | |
3224 | those systems using AFS. For extra portability, only this variable | |
3225 | should be used in makefiles. | |
3226 | ||
3227 | installbin (bin.U): | |
3228 | This variable is the same as binexp unless AFS is running in which case | |
3229 | the user is explicitely prompted for it. This variable should always | |
3230 | be used in your makefiles for maximum portability. | |
3231 | ||
10305dfa | 3232 | installhtml1dir (html1dir.U): |
635aebb7 AL |
3233 | This variable is really the same as html1direxp, unless you are |
3234 | using a different installprefix. For extra portability, you | |
10305dfa JH |
3235 | should only use this variable within your makefiles. |
3236 | ||
3237 | installhtml3dir (html3dir.U): | |
635aebb7 AL |
3238 | This variable is really the same as html3direxp, unless you are |
3239 | using a different installprefix. For extra portability, you | |
10305dfa JH |
3240 | should only use this variable within your makefiles. |
3241 | ||
781b178c JH |
3242 | installman1dir (man1dir.U): |
3243 | This variable is really the same as man1direxp, unless you are using | |
3244 | AFS in which case it points to the read/write location whereas | |
3245 | man1direxp only points to the read-only access location. For extra | |
3246 | portability, you should only use this variable within your makefiles. | |
3247 | ||
3248 | installman3dir (man3dir.U): | |
3249 | This variable is really the same as man3direxp, unless you are using | |
3250 | AFS in which case it points to the read/write location whereas | |
3251 | man3direxp only points to the read-only access location. For extra | |
3252 | portability, you should only use this variable within your makefiles. | |
3253 | ||
3254 | installprefix (installprefix.U): | |
635aebb7 | 3255 | This variable holds the name of the directory below which |
781b178c JH |
3256 | "make install" will install the package. For most users, this |
3257 | is the same as prefix. However, it is useful for | |
3258 | installing the software into a different (usually temporary) | |
3259 | location after which it can be bundled up and moved somehow | |
3260 | to the final location specified by prefix. | |
3261 | ||
3262 | installprefixexp (installprefix.U): | |
3263 | This variable holds the full absolute path of installprefix | |
3264 | with all ~-expansion done. | |
3265 | ||
3266 | installprivlib (privlib.U): | |
3267 | This variable is really the same as privlibexp but may differ on | |
3268 | those systems using AFS. For extra portability, only this variable | |
3269 | should be used in makefiles. | |
3270 | ||
3271 | installscript (scriptdir.U): | |
3272 | This variable is usually the same as scriptdirexp, unless you are on | |
3273 | a system running AFS, in which case they may differ slightly. You | |
3274 | should always use this variable within your makefiles for portability. | |
3275 | ||
3276 | installsitearch (sitearch.U): | |
3277 | This variable is really the same as sitearchexp but may differ on | |
3278 | those systems using AFS. For extra portability, only this variable | |
3279 | should be used in makefiles. | |
3280 | ||
0617aed7 JH |
3281 | installsitebin (sitebin.U): |
3282 | This variable is usually the same as sitebinexp, unless you are on | |
3283 | a system running AFS, in which case they may differ slightly. You | |
3284 | should always use this variable within your makefiles for portability. | |
3285 | ||
e755722e JH |
3286 | installsitehtml1dir (sitehtml1dir.U): |
3287 | This variable is really the same as sitehtml1direxp, unless you are using | |
10305dfa JH |
3288 | AFS in which case it points to the read/write location whereas |
3289 | html1direxp only points to the read-only access location. For extra | |
3290 | portability, you should only use this variable within your makefiles. | |
3291 | ||
e755722e JH |
3292 | installsitehtml3dir (sitehtml3dir.U): |
3293 | This variable is really the same as sitehtml3direxp, unless you are using | |
10305dfa JH |
3294 | AFS in which case it points to the read/write location whereas |
3295 | html3direxp only points to the read-only access location. For extra | |
3296 | portability, you should only use this variable within your makefiles. | |
3297 | ||
781b178c JH |
3298 | installsitelib (sitelib.U): |
3299 | This variable is really the same as sitelibexp but may differ on | |
3300 | those systems using AFS. For extra portability, only this variable | |
3301 | should be used in makefiles. | |
3302 | ||
e755722e JH |
3303 | installsiteman1dir (siteman1dir.U): |
3304 | This variable is really the same as siteman1direxp, unless you are using | |
10305dfa JH |
3305 | AFS in which case it points to the read/write location whereas |
3306 | man1direxp only points to the read-only access location. For extra | |
3307 | portability, you should only use this variable within your makefiles. | |
3308 | ||
e755722e JH |
3309 | installsiteman3dir (siteman3dir.U): |
3310 | This variable is really the same as siteman3direxp, unless you are using | |
10305dfa JH |
3311 | AFS in which case it points to the read/write location whereas |
3312 | man3direxp only points to the read-only access location. For extra | |
3313 | portability, you should only use this variable within your makefiles. | |
3314 | ||
3315 | installsitescript (sitescript.U): | |
3316 | This variable is usually the same as sitescriptexp, unless you are on | |
3317 | a system running AFS, in which case they may differ slightly. You | |
3318 | should always use this variable within your makefiles for portability. | |
3319 | ||
781b178c JH |
3320 | installstyle (installstyle.U): |
3321 | This variable describes the "style" of the perl installation. | |
3322 | This is intended to be useful for tools that need to | |
3323 | manipulate entire perl distributions. Perl itself doesn't use | |
3324 | this to find its libraries -- the library directories are | |
3325 | stored directly in Config.pm. Currently, there are only two | |
3326 | styles: "lib" and "lib/perl5". The default library locations | |
3327 | (e.g. privlib, sitelib) are either $prefix/lib or | |
3328 | $prefix/lib/perl5. The former is useful if $prefix is a | |
3329 | directory dedicated to perl (e.g. /opt/perl), while the latter | |
3330 | is useful if $prefix is shared by many packages, e.g. if | |
3331 | $prefix=/usr/local. | |
9c20e9bc | 3332 | |
123f32c0 MB |
3333 | Unfortunately, while this "style" variable is used to set |
3334 | defaults for all three directory hierarchies (core, vendor, and | |
3335 | site), there is no guarantee that the same style is actually | |
3336 | appropriate for all those directories. For example, $prefix | |
3337 | might be /opt/perl, but $siteprefix might be /usr/local. | |
3338 | (Perhaps, in retrospect, the "lib" style should never have been | |
3339 | supported, but it did seem like a nice idea at the time.) | |
3340 | ||
3341 | The situation is even less clear for tools such as MakeMaker | |
3342 | that can be used to install additional modules into | |
3343 | non-standard places. For example, if a user intends to install | |
3344 | a module into a private directory (perhaps by setting PREFIX on | |
3345 | the Makefile.PL command line), then there is no reason to | |
3346 | assume that the Configure-time $installstyle setting will be | |
3347 | relevant for that PREFIX. | |
3348 | ||
9c20e9bc | 3349 | This may later be extended to include other information, so |
781b178c | 3350 | be careful with pattern-matching on the results. |
9c20e9bc JH |
3351 | |
3352 | For compatibility with perl5.005 and earlier, the default | |
781b178c JH |
3353 | setting is based on whether or not $prefix contains the string |
3354 | "perl". | |
3355 | ||
3356 | installusrbinperl (instubperl.U): | |
3357 | This variable tells whether Perl should be installed also as | |
3358 | /usr/bin/perl in addition to | |
3359 | $installbin/perl | |
3360 | ||
526fdc24 MS |
3361 | installvendorarch (vendorarch.U): |
3362 | This variable is really the same as vendorarchexp but may differ on | |
3363 | those systems using AFS. For extra portability, only this variable | |
3364 | should be used in makefiles. | |
3365 | ||
0617aed7 JH |
3366 | installvendorbin (vendorbin.U): |
3367 | This variable is really the same as vendorbinexp but may differ on | |
3368 | those systems using AFS. For extra portability, only this variable | |
3369 | should be used in makefiles. | |
3370 | ||
e755722e JH |
3371 | installvendorhtml1dir (vendorhtml1dir.U): |
3372 | This variable is really the same as vendorhtml1direxp but may differ on | |
10305dfa JH |
3373 | those systems using AFS. For extra portability, only this variable |
3374 | should be used in makefiles. | |
3375 | ||
e755722e JH |
3376 | installvendorhtml3dir (vendorhtml3dir.U): |
3377 | This variable is really the same as vendorhtml3direxp but may differ on | |
10305dfa JH |
3378 | those systems using AFS. For extra portability, only this variable |
3379 | should be used in makefiles. | |
3380 | ||
a3635516 JH |
3381 | installvendorlib (vendorlib.U): |
3382 | This variable is really the same as vendorlibexp but may differ on | |
3383 | those systems using AFS. For extra portability, only this variable | |
3384 | should be used in makefiles. | |
3385 | ||
e755722e JH |
3386 | installvendorman1dir (vendorman1dir.U): |
3387 | This variable is really the same as vendorman1direxp but may differ on | |
10305dfa JH |
3388 | those systems using AFS. For extra portability, only this variable |
3389 | should be used in makefiles. | |
3390 | ||
e755722e JH |
3391 | installvendorman3dir (vendorman3dir.U): |
3392 | This variable is really the same as vendorman3direxp but may differ on | |
10305dfa JH |
3393 | those systems using AFS. For extra portability, only this variable |
3394 | should be used in makefiles. | |
3395 | ||
3396 | installvendorscript (vendorscript.U): | |
3397 | This variable is really the same as vendorscriptexp but may differ on | |
3398 | those systems using AFS. For extra portability, only this variable | |
3399 | should be used in makefiles. | |
3400 | ||
781b178c JH |
3401 | intsize (intsize.U): |
3402 | This variable contains the value of the INTSIZE symbol, which | |
3403 | indicates to the C program how many bytes there are in an int. | |
3404 | ||
4b661809 | 3405 | issymlink (issymlink.U): |
983dbef6 JH |
3406 | This variable holds the test command to test for a symbolic link |
3407 | (if they are supported). Typical values include 'test -h' and | |
3408 | 'test -L'. | |
4b661809 | 3409 | |
a22e52b9 JH |
3410 | ivdformat (perlxvf.U): |
3411 | This variable contains the format string used for printing | |
635aebb7 | 3412 | a Perl IV as a signed decimal integer. |
a22e52b9 JH |
3413 | |
3414 | ivsize (perlxv.U): | |
3415 | This variable is the size of an IV in bytes. | |
3416 | ||
3417 | ivtype (perlxv.U): | |
3418 | This variable contains the C type used for Perl's IV. | |
3419 | ||
781b178c | 3420 | known_extensions (Extensions.U): |
635aebb7 | 3421 | This variable holds a list of all XS extensions included in |
781b178c JH |
3422 | the package. |
3423 | ||
3424 | ksh (Loc.U): | |
3425 | This variable is defined but not used by Configure. | |
3426 | The value is a plain '' and is not useful. | |
3427 | ||
781b178c JH |
3428 | ld (dlsrc.U): |
3429 | This variable indicates the program to be used to link | |
3430 | libraries for dynamic loading. On some systems, it is 'ld'. | |
3431 | On ELF systems, it should be $cc. Mostly, we'll try to respect | |
3432 | the hint file setting. | |
3433 | ||
3434 | lddlflags (dlsrc.U): | |
3435 | This variable contains any special flags that might need to be | |
3436 | passed to $ld to create a shared library suitable for dynamic | |
3437 | loading. It is up to the makefile to use it. For hpux, it | |
3438 | should be '-b'. For sunos 4.1, it is empty. | |
3439 | ||
3440 | ldflags (ccflags.U): | |
3441 | This variable contains any additional C loader flags desired by | |
3442 | the user. It is up to the Makefile to use this. | |
3443 | ||
af960fef JH |
3444 | ldflags_uselargefiles (uselfs.U): |
3445 | This variable contains the loader flags needed by large file builds | |
3446 | and added to ldflags by hints files. | |
3447 | ||
781b178c JH |
3448 | ldlibpthname (libperl.U): |
3449 | This variable holds the name of the shared library | |
3450 | search path, often LD_LIBRARY_PATH. To get an empty | |
3451 | string, the hints file must set this to 'none'. | |
3452 | ||
3453 | less (Loc.U): | |
5bf26616 | 3454 | This variable is used internally by Configure to determine the |
781b178c JH |
3455 | full pathname (if any) of the less program. After Configure runs, |
3456 | the value is reset to a plain "less" and is not useful. | |
3457 | ||
3458 | lib_ext (Unix.U): | |
3459 | This is an old synonym for _a. | |
3460 | ||
3461 | libc (libc.U): | |
3462 | This variable contains the location of the C library. | |
3463 | ||
3464 | libperl (libperl.U): | |
3465 | The perl executable is obtained by linking perlmain.c with | |
3466 | libperl, any static extensions (usually just DynaLoader), | |
3467 | and any other libraries needed on this system. libperl | |
3468 | is usually libperl.a, but can also be libperl.so.xxx if | |
3469 | the user wishes to build a perl executable with a shared | |
3470 | library. | |
3471 | ||
3472 | libpth (libpth.U): | |
3473 | This variable holds the general path (space-separated) used to find | |
3474 | libraries. It is intended to be used by other units. | |
3475 | ||
3476 | libs (libs.U): | |
3477 | This variable holds the additional libraries we want to use. | |
9285ede2 | 3478 | It is up to the Makefile to deal with it. The list can be empty. |
781b178c | 3479 | |
fe749a9f JH |
3480 | libsdirs (libs.U): |
3481 | This variable holds the directory names aka dirnames of the libraries | |
3482 | we found and accepted, duplicates are removed. | |
3483 | ||
3484 | libsfiles (libs.U): | |
3485 | This variable holds the filenames aka basenames of the libraries | |
3486 | we found and accepted. | |
3487 | ||
3488 | libsfound (libs.U): | |
3489 | This variable holds the full pathnames of the libraries | |
3490 | we found and accepted. | |
3491 | ||
13b3f787 JH |
3492 | libspath (libs.U): |
3493 | This variable holds the directory names probed for libraries. | |
3494 | ||
781b178c JH |
3495 | libswanted (Myinit.U): |
3496 | This variable holds a list of all the libraries we want to | |
3497 | search. The order is chosen to pick up the c library | |
3498 | ahead of ucb or bsd libraries for SVR4. | |
3499 | ||
af960fef JH |
3500 | libswanted_uselargefiles (uselfs.U): |
3501 | This variable contains the libraries needed by large file builds | |
3502 | and added to ldflags by hints files. It is a space separated list | |
3503 | of the library names without the "lib" prefix or any suffix, just | |
209e5c0a | 3504 | like libswanted.. |
af960fef | 3505 | |
781b178c | 3506 | line (Loc.U): |
ff935051 JH |
3507 | This variable is defined but not used by Configure. |
3508 | The value is a plain '' and is not useful. | |
781b178c JH |
3509 | |
3510 | lint (Loc.U): | |
3511 | This variable is defined but not used by Configure. | |
3512 | The value is a plain '' and is not useful. | |
3513 | ||
3514 | lkflags (ccflags.U): | |
3515 | This variable contains any additional C partial linker flags desired by | |
3516 | the user. It is up to the Makefile to use this. | |
3517 | ||
3518 | ln (Loc.U): | |
5bf26616 | 3519 | This variable is used internally by Configure to determine the |
781b178c JH |
3520 | full pathname (if any) of the ln program. After Configure runs, |
3521 | the value is reset to a plain "ln" and is not useful. | |
3522 | ||
3523 | lns (lns.U): | |
635aebb7 | 3524 | This variable holds the name of the command to make |
781b178c JH |
3525 | symbolic links (if they are supported). It can be used |
3526 | in the Makefile. It is either 'ln -s' or 'ln' | |
3527 | ||
10bc17b6 JH |
3528 | localtime_r_proto (d_localtime_r.U): |
3529 | This variable encodes the prototype of localtime_r. | |
39183afa JH |
3530 | It is zero if d_localtime_r is undef, and one of the |
3531 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_localtime_r | |
3532 | is defined. | |
10bc17b6 | 3533 | |
781b178c JH |
3534 | locincpth (ccflags.U): |
3535 | This variable contains a list of additional directories to be | |
3536 | searched by the compiler. The appropriate '-I' directives will | |
3537 | be added to ccflags. This is intended to simplify setting | |
3538 | local directories from the Configure command line. | |
3539 | It's not much, but it parallels the loclibpth stuff in libpth.U. | |
3540 | ||
3541 | loclibpth (libpth.U): | |
3542 | This variable holds the paths (space-separated) used to find local | |
3543 | libraries. It is prepended to libpth, and is intended to be easily | |
3544 | set from the command line. | |
3545 | ||
3546 | longdblsize (d_longdbl.U): | |
3547 | This variable contains the value of the LONG_DOUBLESIZE symbol, which | |
3548 | indicates to the C program how many bytes there are in a long double, | |
3549 | if this system supports long doubles. | |
3550 | ||
3551 | longlongsize (d_longlong.U): | |
3552 | This variable contains the value of the LONGLONGSIZE symbol, which | |
3553 | indicates to the C program how many bytes there are in a long long, | |
3554 | if this system supports long long. | |
3555 | ||
3556 | longsize (intsize.U): | |
3557 | This variable contains the value of the LONGSIZE symbol, which | |
3558 | indicates to the C program how many bytes there are in a long. | |
3559 | ||
3560 | lp (Loc.U): | |
3561 | This variable is defined but not used by Configure. | |
3562 | The value is a plain '' and is not useful. | |
3563 | ||
3564 | lpr (Loc.U): | |
3565 | This variable is defined but not used by Configure. | |
3566 | The value is a plain '' and is not useful. | |
3567 | ||
3568 | ls (Loc.U): | |
5bf26616 | 3569 | This variable is used internally by Configure to determine the |
781b178c JH |
3570 | full pathname (if any) of the ls program. After Configure runs, |
3571 | the value is reset to a plain "ls" and is not useful. | |
3572 | ||
3573 | lseeksize (lseektype.U): | |
635aebb7 | 3574 | This variable defines lseektype to be something like off_t, long, |
781b178c JH |
3575 | or whatever type is used to declare lseek offset's type in the |
3576 | kernel (which also appears to be lseek's return type). | |
3577 | ||
3578 | lseektype (lseektype.U): | |
635aebb7 | 3579 | This variable defines lseektype to be something like off_t, long, |
781b178c JH |
3580 | or whatever type is used to declare lseek offset's type in the |
3581 | kernel (which also appears to be lseek's return type). | |
3582 | ||
d620c7b3 | 3583 | mad (mad.U): |
a724edfe NC |
3584 | This variable indicates that the Misc Attribute Definition code is to |
3585 | be compiled. | |
3586 | ||
52ca670a MB |
3587 | madlyh (mad.U): |
3588 | If the Misc Attribute Decoration is to be compiled, this variable is | |
3589 | set to the name of the extra header files to be used, else it is '' | |
3590 | ||
3591 | madlyobj (mad.U): | |
3592 | If the Misc Attribute Decoration is to be compiled, this variable is | |
3593 | set to the name of the extra object files to be used, else it is '' | |
3594 | ||
3595 | madlysrc (mad.U): | |
3596 | If the Misc Attribute Decoration is to be compiled, this variable is | |
3597 | set to the name of the extra C source files to be used, else it is '' | |
3598 | ||
781b178c JH |
3599 | mail (Loc.U): |
3600 | This variable is defined but not used by Configure. | |
3601 | The value is a plain '' and is not useful. | |
3602 | ||
3603 | mailx (Loc.U): | |
3604 | This variable is defined but not used by Configure. | |
3605 | The value is a plain '' and is not useful. | |
3606 | ||
3607 | make (Loc.U): | |
5bf26616 | 3608 | This variable is used internally by Configure to determine the |
c532c9d1 JH |
3609 | full pathname (if any) of the make program. After Configure runs, |
3610 | the value is reset to a plain "make" and is not useful. | |
3611 | ||
781b178c JH |
3612 | make_set_make (make.U): |
3613 | Some versions of 'make' set the variable MAKE. Others do not. | |
3614 | This variable contains the string to be included in Makefile.SH | |
3615 | so that MAKE is set if needed, and not if not needed. | |
3616 | Possible values are: | |
44b94491 | 3617 | |
781b178c | 3618 | make_set_make='#' # If your make program handles this for you, |
44b94491 | 3619 | |
781b178c | 3620 | make_set_make="MAKE=$make" # if it doesn't. |
44b94491 MB |
3621 | |
3622 | This uses a comment character to distinguish a | |
1d896104 | 3623 | 'set' value (from a previous config.sh or Configure '-D' option) |
781b178c JH |
3624 | from an uncomputed value. |
3625 | ||
3626 | mallocobj (mallocsrc.U): | |
3627 | This variable contains the name of the malloc.o that this package | |
3628 | generates, if that malloc.o is preferred over the system malloc. | |
3629 | Otherwise the value is null. This variable is intended for generating | |
3630 | Makefiles. See mallocsrc. | |
3631 | ||
3632 | mallocsrc (mallocsrc.U): | |
3633 | This variable contains the name of the malloc.c that comes with | |
3634 | the package, if that malloc.c is preferred over the system malloc. | |
3635 | Otherwise the value is null. This variable is intended for generating | |
3636 | Makefiles. | |
3637 | ||
3638 | malloctype (mallocsrc.U): | |
3639 | This variable contains the kind of ptr returned by malloc and realloc. | |
3640 | ||
3641 | man1dir (man1dir.U): | |
3642 | This variable contains the name of the directory in which manual | |
3643 | source pages are to be put. It is the responsibility of the | |
3644 | Makefile.SH to get the value of this into the proper command. | |
3645 | You must be prepared to do the ~name expansion yourself. | |
3646 | ||
3647 | man1direxp (man1dir.U): | |
3648 | This variable is the same as the man1dir variable, but is filename | |
3649 | expanded at configuration time, for convenient use in makefiles. | |
3650 | ||
3651 | man1ext (man1dir.U): | |
3652 | This variable contains the extension that the manual page should | |
3653 | have: one of 'n', 'l', or '1'. The Makefile must supply the '.'. | |
3654 | See man1dir. | |
3655 | ||
3656 | man3dir (man3dir.U): | |
3657 | This variable contains the name of the directory in which manual | |
3658 | source pages are to be put. It is the responsibility of the | |
3659 | Makefile.SH to get the value of this into the proper command. | |
3660 | You must be prepared to do the ~name expansion yourself. | |
3661 | ||
3662 | man3direxp (man3dir.U): | |
3663 | This variable is the same as the man3dir variable, but is filename | |
3664 | expanded at configuration time, for convenient use in makefiles. | |
3665 | ||
3666 | man3ext (man3dir.U): | |
3667 | This variable contains the extension that the manual page should | |
3668 | have: one of 'n', 'l', or '3'. The Makefile must supply the '.'. | |
3669 | See man3dir. | |
3670 | ||
4d54317a JH |
3671 | Mcc (Loc.U): |
3672 | This variable is used internally by Configure to determine the | |
3673 | full pathname (if any) of the Mcc program. After Configure runs, | |
3674 | the value is reset to a plain "Mcc" and is not useful. | |
3675 | ||
781b178c JH |
3676 | mips_type (usrinc.U): |
3677 | This variable holds the environment type for the mips system. | |
3678 | Possible values are "BSD 4.3" and "System V". | |
3679 | ||
65d1576c | 3680 | mistrustnm (Csym.U): |
5129fff4 JH |
3681 | This variable can be used to establish a fallthrough for the cases |
3682 | where nm fails to find a symbol. If usenm is false or usenm is true | |
3683 | and mistrustnm is false, this variable has no effect. If usenm is true | |
3684 | and mistrustnm is "compile", a test program will be compiled to try to | |
3685 | find any symbol that can't be located via nm lookup. If mistrustnm is | |
3686 | "run", the test program will be run as well as being compiled. | |
3687 | ||
781b178c | 3688 | mkdir (Loc.U): |
5bf26616 | 3689 | This variable is used internally by Configure to determine the |
781b178c JH |
3690 | full pathname (if any) of the mkdir program. After Configure runs, |
3691 | the value is reset to a plain "mkdir" and is not useful. | |
3692 | ||
fe749a9f JH |
3693 | mmaptype (d_mmap.U): |
3694 | This symbol contains the type of pointer returned by mmap() | |
3695 | (and simultaneously the type of the first argument). | |
3696 | It can be 'void *' or 'caddr_t'. | |
3697 | ||
781b178c | 3698 | modetype (modetype.U): |
635aebb7 AL |
3699 | This variable defines modetype to be something like mode_t, |
3700 | int, unsigned short, or whatever type is used to declare file | |
781b178c JH |
3701 | modes for system calls. |
3702 | ||
3703 | more (Loc.U): | |
5bf26616 | 3704 | This variable is used internally by Configure to determine the |
781b178c JH |
3705 | full pathname (if any) of the more program. After Configure runs, |
3706 | the value is reset to a plain "more" and is not useful. | |
3707 | ||
3708 | multiarch (multiarch.U): | |
3709 | This variable conditionally defines the MULTIARCH symbol | |
3710 | which signifies the presence of multiplatform files. | |
3711 | This is normally set by hints files. | |
3712 | ||
3713 | mv (Loc.U): | |
3714 | This variable is defined but not used by Configure. | |
3715 | The value is a plain '' and is not useful. | |
3716 | ||
3717 | myarchname (archname.U): | |
3718 | This variable holds the architecture name computed by Configure in | |
3719 | a previous run. It is not intended to be perused by any user and | |
3720 | should never be set in a hint file. | |
3721 | ||
3722 | mydomain (myhostname.U): | |
3723 | This variable contains the eventual value of the MYDOMAIN symbol, | |
3724 | which is the domain of the host the program is going to run on. | |
3725 | The domain must be appended to myhostname to form a complete host name. | |
3726 | The dot comes with mydomain, and need not be supplied by the program. | |
3727 | ||
3728 | myhostname (myhostname.U): | |
3729 | This variable contains the eventual value of the MYHOSTNAME symbol, | |
3730 | which is the name of the host the program is going to run on. | |
3731 | The domain is not kept with hostname, but must be gotten from mydomain. | |
3732 | The dot comes with mydomain, and need not be supplied by the program. | |
3733 | ||
3734 | myuname (Oldconfig.U): | |
3735 | The output of 'uname -a' if available, otherwise the hostname. On Xenix, | |
3736 | pseudo variables assignments in the output are stripped, thank you. The | |
3737 | whole thing is then lower-cased. | |
3738 | ||
3739 | n (n.U): | |
1d896104 | 3740 | This variable contains the '-n' flag if that is what causes the echo |
781b178c JH |
3741 | command to suppress newline. Otherwise it is null. Correct usage is |
3742 | $echo $n "prompt for a question: $c". | |
3743 | ||
2cc61e15 DD |
3744 | need_va_copy (need_va_copy.U): |
3745 | This symbol, if defined, indicates that the system stores | |
3746 | the variable argument list datatype, va_list, in a format | |
3747 | that cannot be copied by simple assignment, so that some | |
3748 | other means must be used when copying is required. | |
3749 | As such systems vary in their provision (or non-provision) | |
3750 | of copying mechanisms, handy.h defines a platform- | |
3751 | independent macro, Perl_va_copy(src, dst), to do the job. | |
3752 | ||
781b178c JH |
3753 | netdb_hlen_type (netdbtype.U): |
3754 | This variable holds the type used for the 2nd argument to | |
3755 | gethostbyaddr(). Usually, this is int or size_t or unsigned. | |
3756 | This is only useful if you have gethostbyaddr(), naturally. | |
3757 | ||
3758 | netdb_host_type (netdbtype.U): | |
3759 | This variable holds the type used for the 1st argument to | |
3760 | gethostbyaddr(). Usually, this is char * or void *, possibly | |
3761 | with or without a const prefix. | |
3762 | This is only useful if you have gethostbyaddr(), naturally. | |
3763 | ||
3764 | netdb_name_type (netdbtype.U): | |
3765 | This variable holds the type used for the argument to | |
3766 | gethostbyname(). Usually, this is char * or const char *. | |
3767 | This is only useful if you have gethostbyname(), naturally. | |
3768 | ||
3769 | netdb_net_type (netdbtype.U): | |
3770 | This variable holds the type used for the 1st argument to | |
3771 | getnetbyaddr(). Usually, this is int or long. | |
3772 | This is only useful if you have getnetbyaddr(), naturally. | |
3773 | ||
3774 | nm (Loc.U): | |
5bf26616 | 3775 | This variable is used internally by Configure to determine the |
781b178c JH |
3776 | full pathname (if any) of the nm program. After Configure runs, |
3777 | the value is reset to a plain "nm" and is not useful. | |
3778 | ||
3779 | nm_opt (usenm.U): | |
3780 | This variable holds the options that may be necessary for nm. | |
3781 | ||
3782 | nm_so_opt (usenm.U): | |
3783 | This variable holds the options that may be necessary for nm | |
3784 | to work on a shared library but that can not be used on an | |
3785 | archive library. Currently, this is only used by Linux, where | |
3786 | nm --dynamic is *required* to get symbols from an ELF library which | |
3787 | has been stripped, but nm --dynamic is *fatal* on an archive library. | |
3788 | Maybe Linux should just always set usenm=false. | |
3789 | ||
3790 | nonxs_ext (Extensions.U): | |
3791 | This variable holds a list of all non-xs extensions included | |
3792 | in the package. All of them will be built. | |
3793 | ||
3794 | nroff (Loc.U): | |
5bf26616 | 3795 | This variable is used internally by Configure to determine the |
781b178c JH |
3796 | full pathname (if any) of the nroff program. After Configure runs, |
3797 | the value is reset to a plain "nroff" and is not useful. | |
3798 | ||
2f12987e JH |
3799 | nv_preserves_uv_bits (perlxv.U): |
3800 | This variable indicates how many of bits type uvtype | |
3801 | a variable nvtype can preserve. | |
3802 | ||
6b4667fc A |
3803 | nveformat (perlxvf.U): |
3804 | This variable contains the format string used for printing | |
3805 | a Perl NV using %e-ish floating point format. | |
3806 | ||
4d54317a JH |
3807 | nvEUformat (perlxvf.U): |
3808 | This variable contains the format string used for printing | |
3809 | a Perl NV using %E-ish floating point format. | |
3810 | ||
6b4667fc A |
3811 | nvfformat (perlxvf.U): |
3812 | This variable confains the format string used for printing | |
3813 | a Perl NV using %f-ish floating point format. | |
3814 | ||
4d54317a JH |
3815 | nvFUformat (perlxvf.U): |
3816 | This variable confains the format string used for printing | |
3817 | a Perl NV using %F-ish floating point format. | |
3818 | ||
6b4667fc A |
3819 | nvgformat (perlxvf.U): |
3820 | This variable contains the format string used for printing | |
3821 | a Perl NV using %g-ish floating point format. | |
3822 | ||
4d54317a JH |
3823 | nvGUformat (perlxvf.U): |
3824 | This variable contains the format string used for printing | |
3825 | a Perl NV using %G-ish floating point format. | |
3826 | ||
a22e52b9 JH |
3827 | nvsize (perlxv.U): |
3828 | This variable is the size of an NV in bytes. | |
3829 | ||
3830 | nvtype (perlxv.U): | |
3831 | This variable contains the C type used for Perl's NV. | |
3832 | ||
781b178c JH |
3833 | o_nonblock (nblock_io.U): |
3834 | This variable bears the symbol value to be used during open() or fcntl() | |
3835 | to turn on non-blocking I/O for a file descriptor. If you wish to switch | |
3836 | between blocking and non-blocking, you may try ioctl(FIOSNBIO) instead, | |
3837 | but that is only supported by some devices. | |
3838 | ||
3839 | obj_ext (Unix.U): | |
3840 | This is an old synonym for _o. | |
3841 | ||
3842 | old_pthread_create_joinable (d_pthrattrj.U): | |
3843 | This variable defines the constant to use for creating joinable | |
3844 | (aka undetached) pthreads. Unused if pthread.h defines | |
3845 | PTHREAD_CREATE_JOINABLE. If used, possible values are | |
3846 | PTHREAD_CREATE_UNDETACHED and __UNDETACHED. | |
3847 | ||
3848 | optimize (ccflags.U): | |
3849 | This variable contains any optimizer/debugger flag that should be used. | |
3850 | It is up to the Makefile to use it. | |
3851 | ||
3852 | orderlib (orderlib.U): | |
3853 | This variable is "true" if the components of libraries must be ordered | |
3854 | (with `lorder $* | tsort`) before placing them in an archive. Set to | |
3855 | "false" if ranlib or ar can generate random libraries. | |
3856 | ||
3857 | osname (Oldconfig.U): | |
3858 | This variable contains the operating system name (e.g. sunos, | |
3859 | solaris, hpux, etc.). It can be useful later on for setting | |
3860 | defaults. Any spaces are replaced with underscores. It is set | |
3861 | to a null string if we can't figure it out. | |
3862 | ||
3863 | osvers (Oldconfig.U): | |
3864 | This variable contains the operating system version (e.g. | |
3865 | 4.1.3, 5.2, etc.). It is primarily used for helping select | |
3866 | an appropriate hints file, but might be useful elsewhere for | |
3867 | setting defaults. It is set to '' if we can't figure it out. | |
3868 | We try to be flexible about how much of the version number | |
3869 | to keep, e.g. if 4.1.1, 4.1.2, and 4.1.3 are essentially the | |
3870 | same for this package, hints files might just be os_4.0 or | |
3871 | os_4.1, etc., not keeping separate files for each little release. | |
3872 | ||
3b777bb4 GS |
3873 | otherlibdirs (otherlibdirs.U): |
3874 | This variable contains a colon-separated set of paths for the perl | |
3875 | binary to search for additional library files or modules. | |
3876 | These directories will be tacked to the end of @INC. | |
3877 | Perl will automatically search below each path for version- | |
3878 | and architecture-specific directories. See inc_version_list | |
3879 | for more details. | |
3880 | A value of ' ' means 'none' and is used to preserve this value | |
3881 | for the next run through Configure. | |
3882 | ||
781b178c JH |
3883 | package (package.U): |
3884 | This variable contains the name of the package being constructed. | |
3885 | It is primarily intended for the use of later Configure units. | |
3886 | ||
3887 | pager (pager.U): | |
3888 | This variable contains the name of the preferred pager on the system. | |
3889 | Usual values are (the full pathnames of) more, less, pg, or cat. | |
3890 | ||
3891 | passcat (nis.U): | |
3892 | This variable contains a command that produces the text of the | |
3893 | /etc/passwd file. This is normally "cat /etc/passwd", but can be | |
3894 | "ypcat passwd" when NIS is used. | |
aaacdc8b GS |
3895 | On some systems, such as os390, there may be no equivalent |
3896 | command, in which case this variable is unset. | |
781b178c JH |
3897 | |
3898 | patchlevel (patchlevel.U): | |
3899 | The patchlevel level of this package. | |
3900 | The value of patchlevel comes from the patchlevel.h file. | |
ff935051 | 3901 | In a version number such as 5.6.1, this is the "6". |
c890dc6c | 3902 | In patchlevel.h, this is referred to as "PERL_VERSION". |
781b178c JH |
3903 | |
3904 | path_sep (Unix.U): | |
3905 | This is an old synonym for p_ in Head.U, the character | |
3906 | used to separate elements in the command shell search PATH. | |
3907 | ||
df4c34dc MB |
3908 | perl (Loc.U): |
3909 | This variable is defined but not used by Configure. | |
3910 | The value is a plain '' and is not useful. | |
3911 | ||
c890dc6c JH |
3912 | perl5 (perl5.U): |
3913 | This variable contains the full path (if any) to a previously | |
3914 | installed perl5.005 or later suitable for running the script | |
3915 | to determine inc_version_list. | |
3916 | ||
1d896104 MB |
3917 | PERL_API_REVISION (patchlevel.h): |
3918 | This number describes the earliest compatible PERL_REVISION of | |
3919 | Perl ("compatibility" here being defined as sufficient binary/API | |
3920 | compatibility to run XS code built with the older version). | |
3921 | Normally this does not change across maintenance releases. | |
3922 | Please read the comment in patchlevel.h. | |
3923 | ||
3924 | PERL_API_SUBVERSION (patchlevel.h): | |
3925 | This number describes the earliest compatible PERL_SUBVERSION of | |
3926 | Perl ("compatibility" here being defined as sufficient binary/API | |
3927 | compatibility to run XS code built with the older version). | |
3928 | Normally this does not change across maintenance releases. | |
3929 | Please read the comment in patchlevel.h. | |
3930 | ||
3931 | PERL_API_VERSION (patchlevel.h): | |
3932 | This number describes the earliest compatible PERL_VERSION of | |
3933 | Perl ("compatibility" here being defined as sufficient binary/API | |
3934 | compatibility to run XS code built with the older version). | |
3935 | Normally this does not change across maintenance releases. | |
3936 | Please read the comment in patchlevel.h. | |
3937 | ||
3938 | PERL_CONFIG_SH (Oldsyms.U): | |
3939 | This is set to 'true' in config.sh so that a shell script | |
3940 | sourcing config.sh can tell if it has been sourced already. | |
3941 | ||
3942 | PERL_PATCHLEVEL (Oldsyms.U): | |
3943 | This symbol reflects the patchlevel, if available. Will usually | |
3944 | come from the .patch file, which is available when the perl | |
3945 | source tree was fetched with rsync. | |
3946 | ||
a6d26a0d JH |
3947 | perl_patchlevel (patchlevel.U): |
3948 | This is the Perl patch level, a numeric change identifier, | |
3949 | as defined by whichever source code maintenance system | |
3950 | is used to maintain the patches; currently Perforce. | |
3951 | It does not correlate with the Perl version numbers or | |
3952 | the maintenance versus development dichotomy except | |
3953 | by also being increasing. | |
3954 | ||
4d54317a JH |
3955 | PERL_REVISION (Oldsyms.U): |
3956 | In a Perl version number such as 5.6.2, this is the 5. | |
3957 | This value is manually set in patchlevel.h | |
3958 | ||
3959 | PERL_SUBVERSION (Oldsyms.U): | |
3960 | In a Perl version number such as 5.6.2, this is the 2. | |
3961 | Values greater than 50 represent potentially unstable | |
3962 | development subversions. | |
3963 | This value is manually set in patchlevel.h | |
3964 | ||
3965 | PERL_VERSION (Oldsyms.U): | |
3966 | In a Perl version number such as 5.6.2, this is the 6. | |
3967 | This value is manually set in patchlevel.h | |
3968 | ||
781b178c JH |
3969 | perladmin (perladmin.U): |
3970 | Electronic mail address of the perl5 administrator. | |
3971 | ||
b7a73309 JH |
3972 | perllibs (End.U): |
3973 | The list of libraries needed by Perl only (any libraries needed | |
3974 | by extensions only will by dropped, if using dynamic loading). | |
3975 | ||
781b178c JH |
3976 | perlpath (perlpath.U): |
3977 | This variable contains the eventual value of the PERLPATH symbol, | |
3978 | which contains the name of the perl interpreter to be used in | |
a10d74f3 PG |
3979 | shell scripts and in the "eval 'exec'" idiom. This variable is |
3980 | not necessarily the pathname of the file containing the perl | |
3981 | interpreter; you must append the executable extension (_exe) if | |
3982 | it is not already present. Note that Perl code that runs during | |
3983 | the Perl build process cannot reference this variable, as Perl | |
3984 | may not have been installed, or even if installed, may be a | |
3985 | different version of Perl. | |
781b178c JH |
3986 | |
3987 | pg (Loc.U): | |
5bf26616 | 3988 | This variable is used internally by Configure to determine the |
781b178c JH |
3989 | full pathname (if any) of the pg program. After Configure runs, |
3990 | the value is reset to a plain "pg" and is not useful. | |
3991 | ||
3992 | phostname (myhostname.U): | |
3993 | This variable contains the eventual value of the PHOSTNAME symbol, | |
3994 | which is a command that can be fed to popen() to get the host name. | |
3995 | The program should probably not presume that the domain is or isn't | |
3996 | there already. | |
3997 | ||
3998 | pidtype (pidtype.U): | |
635aebb7 | 3999 | This variable defines PIDTYPE to be something like pid_t, int, |
781b178c JH |
4000 | ushort, or whatever type is used to declare process ids in the kernel. |
4001 | ||
4002 | plibpth (libpth.U): | |
4003 | Holds the private path used by Configure to find out the libraries. | |
4004 | Its value is prepend to libpth. This variable takes care of special | |
4005 | machines, like the mips. Usually, it should be empty. | |
4006 | ||
4007 | pmake (Loc.U): | |
4008 | This variable is defined but not used by Configure. | |
4009 | The value is a plain '' and is not useful. | |
4010 | ||
4011 | pr (Loc.U): | |
4012 | This variable is defined but not used by Configure. | |
4013 | The value is a plain '' and is not useful. | |
4014 | ||
4015 | prefix (prefix.U): | |
4016 | This variable holds the name of the directory below which the | |
4017 | user will install the package. Usually, this is /usr/local, and | |
4018 | executables go in /usr/local/bin, library stuff in /usr/local/lib, | |
4019 | man pages in /usr/local/man, etc. It is only used to set defaults | |
4020 | for things in bin.U, mansrc.U, privlib.U, or scriptdir.U. | |
4021 | ||
4022 | prefixexp (prefix.U): | |
4023 | This variable holds the full absolute path of the directory below | |
4024 | which the user will install the package. Derived from prefix. | |
4025 | ||
4026 | privlib (privlib.U): | |
4027 | This variable contains the eventual value of the PRIVLIB symbol, | |
4028 | which is the name of the private library for this package. It may | |
4029 | have a ~ on the front. It is up to the makefile to eventually create | |
4030 | this directory while performing installation (with ~ substitution). | |
4031 | ||
4032 | privlibexp (privlib.U): | |
4033 | This variable is the ~name expanded version of privlib, so that you | |
4034 | may use it directly in Makefiles or shell scripts. | |
4035 | ||
428dc699 JH |
4036 | procselfexe (d_procselfexe.U): |
4037 | If d_procselfexe is defined, $procselfexe is the filename | |
4038 | of the symbolic link pointing to the absolute pathname of | |
4039 | the executing program. | |
4040 | ||
781b178c JH |
4041 | prototype (prototype.U): |
4042 | This variable holds the eventual value of CAN_PROTOTYPE, which | |
4043 | indicates the C compiler can handle funciton prototypes. | |
4044 | ||
4045 | ptrsize (ptrsize.U): | |
4046 | This variable contains the value of the PTRSIZE symbol, which | |
4047 | indicates to the C program how many bytes there are in a pointer. | |
4048 | ||
e0a10278 | 4049 | quadkind (quadtype.U): |
0befd8de JH |
4050 | This variable, if defined, encodes the type of a quad: |
4051 | 1 = int, 2 = long, 3 = long long, 4 = int64_t. | |
4052 | ||
4053 | quadtype (quadtype.U): | |
635aebb7 | 4054 | This variable defines Quad_t to be something like long, int, |
0befd8de JH |
4055 | long long, int64_t, or whatever type is used for 64-bit integers. |
4056 | ||
781b178c JH |
4057 | randbits (randfunc.U): |
4058 | Indicates how many bits are produced by the function used to | |
4059 | generate normalized random numbers. | |
4060 | ||
4061 | randfunc (randfunc.U): | |
4062 | Indicates the name of the random number function to use. | |
4063 | Values include drand48, random, and rand. In C programs, | |
4064 | the 'Drand01' macro is defined to generate uniformly distributed | |
4065 | random numbers over the range [0., 1.[ (see drand01 and nrand). | |
4066 | ||
10bc17b6 JH |
4067 | random_r_proto (d_random_r.U): |
4068 | This variable encodes the prototype of random_r. | |
39183afa JH |
4069 | It is zero if d_random_r is undef, and one of the |
4070 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_random_r | |
4071 | is defined. | |
10bc17b6 | 4072 | |
781b178c JH |
4073 | randseedtype (randfunc.U): |
4074 | Indicates the type of the argument of the seedfunc. | |
4075 | ||
4076 | ranlib (orderlib.U): | |
4077 | This variable is set to the pathname of the ranlib program, if it is | |
4078 | needed to generate random libraries. Set to ":" if ar can generate | |
4079 | random libraries or if random libraries are not supported | |
4080 | ||
4081 | rd_nodata (nblock_io.U): | |
4082 | This variable holds the return code from read() when no data is | |
4083 | present. It should be -1, but some systems return 0 when O_NDELAY is | |
4084 | used, which is a shame because you cannot make the difference between | |
209e5c0a | 4085 | no data and an EOF.. Sigh! |
781b178c | 4086 | |
10bc17b6 JH |
4087 | readdir64_r_proto (d_readdir64_r.U): |
4088 | This variable encodes the prototype of readdir64_r. | |
39183afa JH |
4089 | It is zero if d_readdir64_r is undef, and one of the |
4090 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir64_r | |
4091 | is defined. | |
10bc17b6 JH |
4092 | |
4093 | readdir_r_proto (d_readdir_r.U): | |
4094 | This variable encodes the prototype of readdir_r. | |
39183afa JH |
4095 | It is zero if d_readdir_r is undef, and one of the |
4096 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_readdir_r | |
4097 | is defined. | |
10bc17b6 | 4098 | |
c890dc6c JH |
4099 | revision (patchlevel.U): |
4100 | The value of revision comes from the patchlevel.h file. | |
4101 | In a version number such as 5.6.1, this is the "5". | |
4102 | In patchlevel.h, this is referred to as "PERL_REVISION". | |
4103 | ||
781b178c | 4104 | rm (Loc.U): |
5bf26616 | 4105 | This variable is used internally by Configure to determine the |
781b178c JH |
4106 | full pathname (if any) of the rm program. After Configure runs, |
4107 | the value is reset to a plain "rm" and is not useful. | |
4108 | ||
4109 | rmail (Loc.U): | |
4110 | This variable is defined but not used by Configure. | |
4111 | The value is a plain '' and is not useful. | |
4112 | ||
5440bc8e JH |
4113 | run (Cross.U): |
4114 | This variable contains the command used by Configure | |
4115 | to copy and execute a cross-compiled executable in the | |
4116 | target host. Useful and available only during Perl build. | |
4117 | Empty string '' if not cross-compiling. | |
4118 | ||
781b178c JH |
4119 | runnm (usenm.U): |
4120 | This variable contains 'true' or 'false' depending whether the | |
4121 | nm extraction should be performed or not, according to the value | |
4122 | of usenm and the flags on the Configure command line. | |
4123 | ||
4124 | sched_yield (d_pthread_y.U): | |
4125 | This variable defines the way to yield the execution | |
4126 | of the current thread. | |
4127 | ||
4128 | scriptdir (scriptdir.U): | |
4129 | This variable holds the name of the directory in which the user wants | |
4130 | to put publicly scripts for the package in question. It is either | |
4131 | the same directory as for binaries, or a special one that can be | |
4132 | mounted across different architectures, like /usr/share. Programs | |
4133 | must be prepared to deal with ~name expansion. | |
4134 | ||
4135 | scriptdirexp (scriptdir.U): | |
4136 | This variable is the same as scriptdir, but is filename expanded | |
4137 | at configuration time, for programs not wanting to bother with it. | |
4138 | ||
4139 | sed (Loc.U): | |
5bf26616 | 4140 | This variable is used internally by Configure to determine the |
781b178c JH |
4141 | full pathname (if any) of the sed program. After Configure runs, |
4142 | the value is reset to a plain "sed" and is not useful. | |
4143 | ||
4144 | seedfunc (randfunc.U): | |
4145 | Indicates the random number generating seed function. | |
4146 | Values include srand48, srandom, and srand. | |
4147 | ||
4148 | selectminbits (selectminbits.U): | |
4149 | This variable holds the minimum number of bits operated by select. | |
4150 | That is, if you do select(n, ...), how many bits at least will be | |
4151 | cleared in the masks if some activity is detected. Usually this | |
4152 | is either n or 32*ceil(n/32), especially many little-endians do | |
4153 | the latter. This is only useful if you have select(), naturally. | |
4154 | ||
4155 | selecttype (selecttype.U): | |
4156 | This variable holds the type used for the 2nd, 3rd, and 4th | |
4157 | arguments to select. Usually, this is 'fd_set *', if HAS_FD_SET | |
635aebb7 | 4158 | is defined, and 'int *' otherwise. This is only useful if you |
781b178c JH |
4159 | have select(), naturally. |
4160 | ||
4161 | sendmail (Loc.U): | |
ff935051 JH |
4162 | This variable is defined but not used by Configure. |
4163 | The value is a plain '' and is not useful. | |
781b178c | 4164 | |
10bc17b6 JH |
4165 | setgrent_r_proto (d_setgrent_r.U): |
4166 | This variable encodes the prototype of setgrent_r. | |
39183afa JH |
4167 | It is zero if d_setgrent_r is undef, and one of the |
4168 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_setgrent_r | |
4169 | is defined. | |
10bc17b6 JH |
4170 | |
4171 | sethostent_r_proto (d_sethostent_r.U): | |
4172 | This variable encodes the prototype of sethostent_r. | |
39183afa JH |
4173 | It is zero if d_sethostent_r is undef, and one of the |
4174 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_sethostent_r | |
4175 | is defined. | |
10bc17b6 JH |
4176 | |
4177 | setlocale_r_proto (d_setlocale_r.U): | |
4178 | This variable encodes the prototype of setlocale_r. | |
39183afa JH |
4179 | It is zero if d_setlocale_r is undef, and one of the |
4180 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_setlocale_r | |
4181 | is defined. | |
10bc17b6 JH |
4182 | |
4183 | setnetent_r_proto (d_setnetent_r.U): | |
4184 | This variable encodes the prototype of setnetent_r. | |
39183afa JH |
4185 | It is zero if d_setnetent_r is undef, and one of the |
4186 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_setnetent_r | |
4187 | is defined. | |
10bc17b6 JH |
4188 | |
4189 | setprotoent_r_proto (d_setprotoent_r.U): | |
4190 | This variable encodes the prototype of setprotoent_r. | |
39183afa JH |
4191 | It is zero if d_setprotoent_r is undef, and one of the |
4192 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_setprotoent_r | |
4193 | is defined. | |
10bc17b6 JH |
4194 | |
4195 | setpwent_r_proto (d_setpwent_r.U): | |
4196 | This variable encodes the prototype of setpwent_r. | |
39183afa JH |
4197 | It is zero if d_setpwent_r is undef, and one of the |
4198 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_setpwent_r | |
4199 | is defined. | |
10bc17b6 JH |
4200 | |
4201 | setservent_r_proto (d_setservent_r.U): | |
4202 | This variable encodes the prototype of setservent_r. | |
39183afa JH |
4203 | It is zero if d_setservent_r is undef, and one of the |
4204 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_setservent_r | |
4205 | is defined. | |
10bc17b6 | 4206 | |
781b178c JH |
4207 | sh (sh.U): |
4208 | This variable contains the full pathname of the shell used | |
4209 | on this system to execute Bourne shell scripts. Usually, this will be | |
4210 | /bin/sh, though it's possible that some systems will have /bin/ksh, | |
4211 | /bin/pdksh, /bin/ash, /bin/bash, or even something such as | |
4212 | D:/bin/sh.exe. | |
1d896104 | 4213 | This unit comes before Options.U, so you can't set sh with a '-D' |
781b178c | 4214 | option, though you can override this (and startsh) |
1d896104 | 4215 | with '-O -Dsh=/bin/whatever -Dstartsh=whatever' |
781b178c JH |
4216 | |
4217 | shar (Loc.U): | |
4218 | This variable is defined but not used by Configure. | |
4219 | The value is a plain '' and is not useful. | |
4220 | ||
4221 | sharpbang (spitshell.U): | |
4222 | This variable contains the string #! if this system supports that | |
4223 | construct. | |
4224 | ||
4225 | shmattype (d_shmat.U): | |
4226 | This symbol contains the type of pointer returned by shmat(). | |
4227 | It can be 'void *' or 'char *'. | |
4228 | ||
4229 | shortsize (intsize.U): | |
4230 | This variable contains the value of the SHORTSIZE symbol which | |
4231 | indicates to the C program how many bytes there are in a short. | |
4232 | ||
4233 | shrpenv (libperl.U): | |
4234 | If the user builds a shared libperl.so, then we need to tell the | |
635aebb7 | 4235 | 'perl' executable where it will be able to find the installed libperl.so. |
781b178c JH |
4236 | One way to do this on some systems is to set the environment variable |
4237 | LD_RUN_PATH to the directory that will be the final location of the | |
4238 | shared libperl.so. The makefile can use this with something like | |
4239 | $shrpenv $(CC) -o perl perlmain.o $libperl $libs | |
4240 | Typical values are | |
4241 | shrpenv="env LD_RUN_PATH=$archlibexp/CORE" | |
4242 | or | |
4243 | shrpenv='' | |
4244 | See the main perl Makefile.SH for actual working usage. | |
4245 | Alternatively, we might be able to use a command line option such | |
c68a00c0 | 4246 | as -R $archlibexp/CORE (Solaris) or -Wl,-rpath |
781b178c JH |
4247 | $archlibexp/CORE (Linux). |
4248 | ||
4249 | shsharp (spitshell.U): | |
4250 | This variable tells further Configure units whether your sh can | |
4251 | handle # comments. | |
4252 | ||
4253 | sig_count (sig_name.U): | |
4254 | This variable holds a number larger than the largest valid | |
4255 | signal number. This is usually the same as the NSIG macro. | |
4256 | ||
4257 | sig_name (sig_name.U): | |
4258 | This variable holds the signal names, space separated. The leading | |
10305dfa JH |
4259 | SIG in signal name is removed. A ZERO is prepended to the list. |
4260 | This is currently not used, sig_name_init is used instead. | |
781b178c JH |
4261 | |
4262 | sig_name_init (sig_name.U): | |
4263 | This variable holds the signal names, enclosed in double quotes and | |
635aebb7 AL |
4264 | separated by commas, suitable for use in the SIG_NAME definition |
4265 | below. A "ZERO" is prepended to the list, and the list is | |
781b178c JH |
4266 | terminated with a plain 0. The leading SIG in signal names |
4267 | is removed. See sig_num. | |
4268 | ||
4269 | sig_num (sig_name.U): | |
4270 | This variable holds the signal numbers, space separated. A ZERO is | |
10305dfa JH |
4271 | prepended to the list (corresponding to the fake SIGZERO). |
4272 | Those numbers correspond to the value of the signal listed | |
4273 | in the same place within the sig_name list. | |
4274 | This is currently not used, sig_num_init is used instead. | |
781b178c JH |
4275 | |
4276 | sig_num_init (sig_name.U): | |
4277 | This variable holds the signal numbers, enclosed in double quotes and | |
635aebb7 AL |
4278 | separated by commas, suitable for use in the SIG_NUM definition |
4279 | below. A "ZERO" is prepended to the list, and the list is | |
781b178c JH |
4280 | terminated with a plain 0. |
4281 | ||
76d3c696 JH |
4282 | sig_size (sig_name.U): |
4283 | This variable contains the number of elements of the sig_name | |
f05fc11d | 4284 | and sig_num arrays. |
76d3c696 | 4285 | |
781b178c JH |
4286 | signal_t (d_voidsig.U): |
4287 | This variable holds the type of the signal handler (void or int). | |
4288 | ||
4289 | sitearch (sitearch.U): | |
4290 | This variable contains the eventual value of the SITEARCH symbol, | |
4291 | which is the name of the private library for this package. It may | |
4292 | have a ~ on the front. It is up to the makefile to eventually create | |
4293 | this directory while performing installation (with ~ substitution). | |
f868067f JH |
4294 | The standard distribution will put nothing in this directory. |
4295 | After perl has been installed, users may install their own local | |
4296 | architecture-dependent modules in this directory with | |
4297 | MakeMaker Makefile.PL | |
4298 | or equivalent. See INSTALL for details. | |
781b178c JH |
4299 | |
4300 | sitearchexp (sitearch.U): | |
4301 | This variable is the ~name expanded version of sitearch, so that you | |
4302 | may use it directly in Makefiles or shell scripts. | |
4303 | ||
0617aed7 JH |
4304 | sitebin (sitebin.U): |
4305 | This variable holds the name of the directory in which the user wants | |
4306 | to put add-on publicly executable files for the package in question. It | |
4307 | is most often a local directory such as /usr/local/bin. Programs using | |
4308 | this variable must be prepared to deal with ~name substitution. | |
f868067f JH |
4309 | The standard distribution will put nothing in this directory. |
4310 | After perl has been installed, users may install their own local | |
4311 | executables in this directory with | |
4312 | MakeMaker Makefile.PL | |
4313 | or equivalent. See INSTALL for details. | |
0617aed7 JH |
4314 | |
4315 | sitebinexp (sitebin.U): | |
4316 | This is the same as the sitebin variable, but is filename expanded at | |
4317 | configuration time, for use in your makefiles. | |
4318 | ||
e755722e | 4319 | sitehtml1dir (sitehtml1dir.U): |
10305dfa JH |
4320 | This variable contains the name of the directory in which site-specific |
4321 | html source pages are to be put. It is the responsibility of the | |
4322 | Makefile.SH to get the value of this into the proper command. | |
4323 | You must be prepared to do the ~name expansion yourself. | |
4324 | The standard distribution will put nothing in this directory. | |
4325 | After perl has been installed, users may install their own local | |
4326 | html pages in this directory with | |
4327 | MakeMaker Makefile.PL | |
4328 | or equivalent. See INSTALL for details. | |
4329 | ||
e755722e JH |
4330 | sitehtml1direxp (sitehtml1dir.U): |
4331 | This variable is the same as the sitehtml1dir variable, but is filename | |
10305dfa JH |
4332 | expanded at configuration time, for convenient use in makefiles. |
4333 | ||
e755722e | 4334 | sitehtml3dir (sitehtml3dir.U): |
10305dfa JH |
4335 | This variable contains the name of the directory in which site-specific |
4336 | library html source pages are to be put. It is the responsibility of the | |
4337 | Makefile.SH to get the value of this into the proper command. | |
4338 | You must be prepared to do the ~name expansion yourself. | |
4339 | The standard distribution will put nothing in this directory. | |
4340 | After perl has been installed, users may install their own local | |
4341 | library html pages in this directory with | |
4342 | MakeMaker Makefile.PL | |
4343 | or equivalent. See INSTALL for details. | |
4344 | ||
e755722e JH |
4345 | sitehtml3direxp (sitehtml3dir.U): |
4346 | This variable is the same as the sitehtml3dir variable, but is filename | |
10305dfa JH |
4347 | expanded at configuration time, for convenient use in makefiles. |
4348 | ||
781b178c JH |
4349 | sitelib (sitelib.U): |
4350 | This variable contains the eventual value of the SITELIB symbol, | |
4351 | which is the name of the private library for this package. It may | |
4352 | have a ~ on the front. It is up to the makefile to eventually create | |
4353 | this directory while performing installation (with ~ substitution). | |
f868067f JH |
4354 | The standard distribution will put nothing in this directory. |
4355 | After perl has been installed, users may install their own local | |
4356 | architecture-independent modules in this directory with | |
4357 | MakeMaker Makefile.PL | |
4358 | or equivalent. See INSTALL for details. | |
781b178c | 4359 | |
526fdc24 MS |
4360 | sitelib_stem (sitelib.U): |
4361 | This variable is $sitelibexp with any trailing version-specific component | |
4362 | removed. The elements in inc_version_list (inc_version_list.U) can | |
4363 | be tacked onto this variable to generate a list of directories to search. | |
4364 | ||
781b178c JH |
4365 | sitelibexp (sitelib.U): |
4366 | This variable is the ~name expanded version of sitelib, so that you | |
4367 | may use it directly in Makefiles or shell scripts. | |
4368 | ||
e755722e | 4369 | siteman1dir (siteman1dir.U): |
10305dfa JH |
4370 | This variable contains the name of the directory in which site-specific |
4371 | manual source pages are to be put. It is the responsibility of the | |
4372 | Makefile.SH to get the value of this into the proper command. | |
4373 | You must be prepared to do the ~name expansion yourself. | |
4374 | The standard distribution will put nothing in this directory. | |
4375 | After perl has been installed, users may install their own local | |
4376 | man1 pages in this directory with | |
4377 | MakeMaker Makefile.PL | |
4378 | or equivalent. See INSTALL for details. | |
4379 | ||
e755722e JH |
4380 | siteman1direxp (siteman1dir.U): |
4381 | This variable is the same as the siteman1dir variable, but is filename | |
10305dfa JH |
4382 | expanded at configuration time, for convenient use in makefiles. |
4383 | ||
e755722e | 4384 | siteman3dir (siteman3dir.U): |
10305dfa JH |
4385 | This variable contains the name of the directory in which site-specific |
4386 | library man source pages are to be put. It is the responsibility of the | |
4387 | Makefile.SH to get the value of this into the proper command. | |
4388 | You must be prepared to do the ~name expansion yourself. | |
4389 | The standard distribution will put nothing in this directory. | |
4390 | After perl has been installed, users may install their own local | |
4391 | man3 pages in this directory with | |
4392 | MakeMaker Makefile.PL | |
4393 | or equivalent. See INSTALL for details. | |
4394 | ||
e755722e JH |
4395 | siteman3direxp (siteman3dir.U): |
4396 | This variable is the same as the siteman3dir variable, but is filename | |
10305dfa JH |
4397 | expanded at configuration time, for convenient use in makefiles. |
4398 | ||
781b178c JH |
4399 | siteprefix (siteprefix.U): |
4400 | This variable holds the full absolute path of the directory below | |
4401 | which the user will install add-on packages. | |
f868067f | 4402 | See INSTALL for usage and examples. |
781b178c JH |
4403 | |
4404 | siteprefixexp (siteprefix.U): | |
4405 | This variable holds the full absolute path of the directory below | |
4406 | which the user will install add-on packages. Derived from siteprefix. | |
4407 | ||
10305dfa JH |
4408 | sitescript (sitescript.U): |
4409 | This variable holds the name of the directory in which the user wants | |
4410 | to put add-on publicly executable files for the package in question. It | |
4411 | is most often a local directory such as /usr/local/bin. Programs using | |
4412 | this variable must be prepared to deal with ~name substitution. | |
4413 | The standard distribution will put nothing in this directory. | |
4414 | After perl has been installed, users may install their own local | |
4415 | scripts in this directory with | |
4416 | MakeMaker Makefile.PL | |
4417 | or equivalent. See INSTALL for details. | |
4418 | ||
4419 | sitescriptexp (sitescript.U): | |
4420 | This is the same as the sitescript variable, but is filename expanded at | |
4421 | configuration time, for use in your makefiles. | |
4422 | ||
a13ea748 JH |
4423 | sizesize (sizesize.U): |
4424 | This variable contains the size of a sizetype in bytes. | |
4425 | ||
781b178c | 4426 | sizetype (sizetype.U): |
635aebb7 AL |
4427 | This variable defines sizetype to be something like size_t, |
4428 | unsigned long, or whatever type is used to declare length | |
781b178c JH |
4429 | parameters for string functions. |
4430 | ||
4431 | sleep (Loc.U): | |
4432 | This variable is defined but not used by Configure. | |
4433 | The value is a plain '' and is not useful. | |
4434 | ||
4435 | smail (Loc.U): | |
4436 | This variable is defined but not used by Configure. | |
4437 | The value is a plain '' and is not useful. | |
4438 | ||
781b178c JH |
4439 | so (so.U): |
4440 | This variable holds the extension used to identify shared libraries | |
4441 | (also known as shared objects) on the system. Usually set to 'so'. | |
4442 | ||
4443 | sockethdr (d_socket.U): | |
4444 | This variable has any cpp '-I' flags needed for socket support. | |
4445 | ||
4446 | socketlib (d_socket.U): | |
4447 | This variable has the names of any libraries needed for socket support. | |
4448 | ||
c890dc6c JH |
4449 | socksizetype (socksizetype.U): |
4450 | This variable holds the type used for the size argument | |
4451 | for various socket calls like accept. Usual values include | |
4452 | socklen_t, size_t, and int. | |
4453 | ||
781b178c | 4454 | sort (Loc.U): |
5bf26616 | 4455 | This variable is used internally by Configure to determine the |
781b178c JH |
4456 | full pathname (if any) of the sort program. After Configure runs, |
4457 | the value is reset to a plain "sort" and is not useful. | |
4458 | ||
4459 | spackage (package.U): | |
4460 | This variable contains the name of the package being constructed, | |
4461 | with the first letter uppercased, i.e. suitable for starting | |
4462 | sentences. | |
4463 | ||
4464 | spitshell (spitshell.U): | |
4465 | This variable contains the command necessary to spit out a runnable | |
1d896104 | 4466 | shell on this system. It is either cat or a grep '-v' for # comments. |
40814d06 | 4467 | |
4d54317a JH |
4468 | sPRId64 (quadfio.U): |
4469 | This variable, if defined, contains the string used by stdio to | |
4470 | format 64-bit decimal numbers (format 'd') for output. | |
4471 | ||
4472 | sPRIeldbl (longdblfio.U): | |
4473 | This variable, if defined, contains the string used by stdio to | |
4474 | format long doubles (format 'e') for output. | |
4475 | ||
4476 | sPRIEUldbl (longdblfio.U): | |
4477 | This variable, if defined, contains the string used by stdio to | |
4478 | format long doubles (format 'E') for output. | |
4479 | The 'U' in the name is to separate this from sPRIeldbl so that even | |
4480 | case-blind systems can see the difference. | |
4481 | ||
4482 | sPRIfldbl (longdblfio.U): | |
4483 | This variable, if defined, contains the string used by stdio to | |
4484 | format long doubles (format 'f') for output. | |
4485 | ||
4486 | sPRIFUldbl (longdblfio.U): | |
4487 | This variable, if defined, contains the string used by stdio to | |
4488 | format long doubles (format 'F') for output. | |
4489 | The 'U' in the name is to separate this from sPRIfldbl so that even | |
4490 | case-blind systems can see the difference. | |
4491 | ||
4492 | sPRIgldbl (longdblfio.U): | |
4493 | This variable, if defined, contains the string used by stdio to | |
4494 | format long doubles (format 'g') for output. | |
4495 | ||
4496 | sPRIGUldbl (longdblfio.U): | |
4497 | This variable, if defined, contains the string used by stdio to | |
4498 | format long doubles (format 'G') for output. | |
4499 | The 'U' in the name is to separate this from sPRIgldbl so that even | |
4500 | case-blind systems can see the difference. | |
4501 | ||
4502 | sPRIi64 (quadfio.U): | |
4503 | This variable, if defined, contains the string used by stdio to | |
4504 | format 64-bit decimal numbers (format 'i') for output. | |
4505 | ||
4506 | sPRIo64 (quadfio.U): | |
4507 | This variable, if defined, contains the string used by stdio to | |
4508 | format 64-bit octal numbers (format 'o') for output. | |
4509 | ||
4510 | sPRIu64 (quadfio.U): | |
4511 | This variable, if defined, contains the string used by stdio to | |
4512 | format 64-bit unsigned decimal numbers (format 'u') for output. | |
4513 | ||
4514 | sPRIx64 (quadfio.U): | |
4515 | This variable, if defined, contains the string used by stdio to | |
4516 | format 64-bit hexadecimal numbers (format 'x') for output. | |
4517 | ||
4518 | sPRIXU64 (quadfio.U): | |
4519 | This variable, if defined, contains the string used by stdio to | |
4520 | format 64-bit hExADECimAl numbers (format 'X') for output. | |
4521 | The 'U' in the name is to separate this from sPRIx64 so that even | |
4522 | case-blind systems can see the difference. | |
4523 | ||
40814d06 | 4524 | srand48_r_proto (d_srand48_r.U): |
10bc17b6 | 4525 | This variable encodes the prototype of srand48_r. |
39183afa JH |
4526 | It is zero if d_srand48_r is undef, and one of the |
4527 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_srand48_r | |
4528 | is defined. | |
10bc17b6 JH |
4529 | |
4530 | srandom_r_proto (d_srandom_r.U): | |
4531 | This variable encodes the prototype of srandom_r. | |
39183afa JH |
4532 | It is zero if d_srandom_r is undef, and one of the |
4533 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_srandom_r | |
4534 | is defined. | |
10bc17b6 | 4535 | |
781b178c JH |
4536 | src (src.U): |
4537 | This variable holds the path to the package source. It is up to | |
4538 | the Makefile to use this variable and set VPATH accordingly to | |
4539 | find the sources remotely. | |
4540 | ||
4d54317a JH |
4541 | sSCNfldbl (longdblfio.U): |
4542 | This variable, if defined, contains the string used by stdio to | |
4543 | format long doubles (format 'f') for input. | |
4544 | ||
781b178c | 4545 | ssizetype (ssizetype.U): |
635aebb7 AL |
4546 | This variable defines ssizetype to be something like ssize_t, |
4547 | long or int. It is used by functions that return a count | |
781b178c JH |
4548 | of bytes or an error condition. It must be a signed type. |
4549 | We will pick a type such that sizeof(SSize_t) == sizeof(Size_t). | |
4550 | ||
4551 | startperl (startperl.U): | |
4552 | This variable contains the string to put on the front of a perl | |
4553 | script to make sure (hopefully) that it runs with perl and not some | |
4554 | shell. Of course, that leading line must be followed by the classical | |
4555 | perl idiom: | |
4556 | eval 'exec perl -S $0 ${1+"$@"}' | |
4557 | if $running_under_some_shell; | |
4558 | to guarantee perl startup should the shell execute the script. Note | |
4559 | that this magic incatation is not understood by csh. | |
4560 | ||
4561 | startsh (startsh.U): | |
4562 | This variable contains the string to put on the front of a shell | |
4563 | script to make sure (hopefully) that it runs with sh and not some | |
4564 | other shell. | |
4565 | ||
4566 | static_ext (Extensions.U): | |
4567 | This variable holds a list of XS extension files we want to | |
4568 | link statically into the package. It is used by Makefile. | |
4569 | ||
4570 | stdchar (stdchar.U): | |
4571 | This variable conditionally defines STDCHAR to be the type of char | |
4572 | used in stdio.h. It has the values "unsigned char" or "char". | |
4573 | ||
4574 | stdio_base (d_stdstdio.U): | |
4575 | This variable defines how, given a FILE pointer, fp, to access the | |
4576 | _base field (or equivalent) of stdio.h's FILE structure. This will | |
4577 | be used to define the macro FILE_base(fp). | |
4578 | ||
4579 | stdio_bufsiz (d_stdstdio.U): | |
4580 | This variable defines how, given a FILE pointer, fp, to determine | |
4581 | the number of bytes store in the I/O buffer pointer to by the | |
4582 | _base field (or equivalent) of stdio.h's FILE structure. This will | |
4583 | be used to define the macro FILE_bufsiz(fp). | |
4584 | ||
4585 | stdio_cnt (d_stdstdio.U): | |
4586 | This variable defines how, given a FILE pointer, fp, to access the | |
4587 | _cnt field (or equivalent) of stdio.h's FILE structure. This will | |
4588 | be used to define the macro FILE_cnt(fp). | |
4589 | ||
4590 | stdio_filbuf (d_stdstdio.U): | |
4591 | This variable defines how, given a FILE pointer, fp, to tell | |
022735b4 | 4592 | stdio to refill its internal buffers (?). This will |
781b178c JH |
4593 | be used to define the macro FILE_filbuf(fp). |
4594 | ||
4595 | stdio_ptr (d_stdstdio.U): | |
4596 | This variable defines how, given a FILE pointer, fp, to access the | |
4597 | _ptr field (or equivalent) of stdio.h's FILE structure. This will | |
4598 | be used to define the macro FILE_ptr(fp). | |
4599 | ||
4600 | stdio_stream_array (stdio_streams.U): | |
4601 | This variable tells the name of the array holding the stdio streams. | |
4602 | Usual values include _iob, __iob, and __sF. | |
4603 | ||
10bc17b6 JH |
4604 | strerror_r_proto (d_strerror_r.U): |
4605 | This variable encodes the prototype of strerror_r. | |
39183afa JH |
4606 | It is zero if d_strerror_r is undef, and one of the |
4607 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_strerror_r | |
4608 | is defined. | |
10bc17b6 | 4609 | |
781b178c JH |
4610 | strings (i_string.U): |
4611 | This variable holds the full path of the string header that will be | |
4612 | used. Typically /usr/include/string.h or /usr/include/strings.h. | |
4613 | ||
4614 | submit (Loc.U): | |
4615 | This variable is defined but not used by Configure. | |
4616 | The value is a plain '' and is not useful. | |
4617 | ||
4618 | subversion (patchlevel.U): | |
4619 | The subversion level of this package. | |
4620 | The value of subversion comes from the patchlevel.h file. | |
ff935051 | 4621 | In a version number such as 5.6.1, this is the "1". |
c890dc6c | 4622 | In patchlevel.h, this is referred to as "PERL_SUBVERSION". |
781b178c JH |
4623 | This is unique to perl. |
4624 | ||
4625 | sysman (sysman.U): | |
4626 | This variable holds the place where the manual is located on this | |
4627 | system. It is not the place where the user wants to put his manual | |
4628 | pages. Rather it is the place where Configure may look to find manual | |
4629 | for unix commands (section 1 of the manual usually). See mansrc. | |
4630 | ||
4631 | tail (Loc.U): | |
4632 | This variable is defined but not used by Configure. | |
4633 | The value is a plain '' and is not useful. | |
4634 | ||
4635 | tar (Loc.U): | |
4636 | This variable is defined but not used by Configure. | |
4637 | The value is a plain '' and is not useful. | |
4638 | ||
5440bc8e JH |
4639 | targetarch (Cross.U): |
4640 | If cross-compiling, this variable contains the target architecture. | |
4641 | If not, this will be empty. | |
4642 | ||
781b178c JH |
4643 | tbl (Loc.U): |
4644 | This variable is defined but not used by Configure. | |
4645 | The value is a plain '' and is not useful. | |
4646 | ||
4647 | tee (Loc.U): | |
4648 | This variable is defined but not used by Configure. | |
4649 | The value is a plain '' and is not useful. | |
4650 | ||
4651 | test (Loc.U): | |
5bf26616 | 4652 | This variable is used internally by Configure to determine the |
781b178c JH |
4653 | full pathname (if any) of the test program. After Configure runs, |
4654 | the value is reset to a plain "test" and is not useful. | |
4655 | ||
4656 | timeincl (i_time.U): | |
4657 | This variable holds the full path of the included time header(s). | |
4658 | ||
4659 | timetype (d_time.U): | |
4660 | This variable holds the type returned by time(). It can be long, | |
4661 | or time_t on BSD sites (in which case <sys/types.h> should be | |
4662 | included). Anyway, the type Time_t should be used. | |
4663 | ||
10bc17b6 JH |
4664 | tmpnam_r_proto (d_tmpnam_r.U): |
4665 | This variable encodes the prototype of tmpnam_r. | |
39183afa JH |
4666 | It is zero if d_tmpnam_r is undef, and one of the |
4667 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_tmpnam_r | |
4668 | is defined. | |
10bc17b6 | 4669 | |
5440bc8e JH |
4670 | to (Cross.U): |
4671 | This variable contains the command used by Configure | |
4672 | to copy to from the target host. Useful and available | |
4673 | only during Perl build. | |
4674 | The string ':' if not cross-compiling. | |
4675 | ||
781b178c | 4676 | touch (Loc.U): |
5bf26616 | 4677 | This variable is used internally by Configure to determine the |
781b178c JH |
4678 | full pathname (if any) of the touch program. After Configure runs, |
4679 | the value is reset to a plain "touch" and is not useful. | |
4680 | ||
4681 | tr (Loc.U): | |
5bf26616 | 4682 | This variable is used internally by Configure to determine the |
781b178c JH |
4683 | full pathname (if any) of the tr program. After Configure runs, |
4684 | the value is reset to a plain "tr" and is not useful. | |
4685 | ||
4686 | trnl (trnl.U): | |
4687 | This variable contains the value to be passed to the tr(1) | |
4688 | command to transliterate a newline. Typical values are | |
4689 | '\012' and '\n'. This is needed for EBCDIC systems where | |
4690 | newline is not necessarily '\012'. | |
4691 | ||
4692 | troff (Loc.U): | |
4693 | This variable is defined but not used by Configure. | |
4694 | The value is a plain '' and is not useful. | |
4695 | ||
10bc17b6 JH |
4696 | ttyname_r_proto (d_ttyname_r.U): |
4697 | This variable encodes the prototype of ttyname_r. | |
39183afa JH |
4698 | It is zero if d_ttyname_r is undef, and one of the |
4699 | REENTRANT_PROTO_T_ABC macros of reentr.h if d_ttyname_r | |
4700 | is defined. | |
10bc17b6 | 4701 | |
a22e52b9 JH |
4702 | u16size (perlxv.U): |
4703 | This variable is the size of an U16 in bytes. | |
4704 | ||
4705 | u16type (perlxv.U): | |
4706 | This variable contains the C type used for Perl's U16. | |
4707 | ||
4708 | u32size (perlxv.U): | |
4709 | This variable is the size of an U32 in bytes. | |
4710 | ||
4711 | u32type (perlxv.U): | |
4712 | This variable contains the C type used for Perl's U32. | |
4713 | ||
4714 | u64size (perlxv.U): | |
4715 | This variable is the size of an U64 in bytes. | |
4716 | ||
4717 | u64type (perlxv.U): | |
4718 | This variable contains the C type used for Perl's U64. | |
4719 | ||
4720 | u8size (perlxv.U): | |
4721 | This variable is the size of an U8 in bytes. | |
4722 | ||
4723 | u8type (perlxv.U): | |
4724 | This variable contains the C type used for Perl's U8. | |
4725 | ||
4726 | uidformat (uidf.U): | |
4727 | This variable contains the format string used for printing a Uid_t. | |
4728 | ||
2d228ff3 JH |
4729 | uidsign (uidsign.U): |
4730 | This variable contains the signedness of a uidtype. | |
4731 | 1 for unsigned, -1 for signed. | |
4732 | ||
785fb66b JH |
4733 | uidsize (uidsize.U): |
4734 | This variable contains the size of a uidtype in bytes. | |
4735 | ||
781b178c | 4736 | uidtype (uidtype.U): |
635aebb7 | 4737 | This variable defines Uid_t to be something like uid_t, int, |
781b178c JH |
4738 | ushort, or whatever type is used to declare user ids in the kernel. |
4739 | ||
4740 | uname (Loc.U): | |
5bf26616 | 4741 | This variable is used internally by Configure to determine the |
781b178c JH |
4742 | full pathname (if any) of the uname program. After Configure runs, |
4743 | the value is reset to a plain "uname" and is not useful. | |
4744 | ||
4745 | uniq (Loc.U): | |
5bf26616 | 4746 | This variable is used internally by Configure to determine the |
781b178c JH |
4747 | full pathname (if any) of the uniq program. After Configure runs, |
4748 | the value is reset to a plain "uniq" and is not useful. | |
4749 | ||
0befd8de JH |
4750 | uquadtype (quadtype.U): |
4751 | This variable defines Uquad_t to be something like unsigned long, | |
4752 | unsigned int, unsigned long long, uint64_t, or whatever type is | |
4753 | used for 64-bit integers. | |
4754 | ||
10305dfa JH |
4755 | use5005threads (usethreads.U): |
4756 | This variable conditionally defines the USE_5005THREADS symbol, | |
4757 | and indicates that Perl should be built to use the 5.005-based | |
5c40187f | 4758 | threading implementation. Only valid up to 5.8.x. |
10305dfa | 4759 | |
10cc9d2a JH |
4760 | use64bitall (use64bits.U): |
4761 | This variable conditionally defines the USE_64_BIT_ALL symbol, | |
4762 | and indicates that 64-bit integer types should be used | |
4763 | when available. The maximal possible | |
4764 | 64-bitness is employed: LP64 or ILP64, meaning that you will | |
4765 | be able to use more than 2 gigabytes of memory. This mode is | |
4766 | even more binary incompatible than USE_64_BIT_INT. You may not | |
4767 | be able to run the resulting executable in a 32-bit CPU at all or | |
4768 | you may need at least to reboot your OS to 64-bit mode. | |
4769 | ||
4770 | use64bitint (use64bits.U): | |
4771 | This variable conditionally defines the USE_64_BIT_INT symbol, | |
aaacdc8b | 4772 | and indicates that 64-bit integer types should be used |
c890dc6c JH |
4773 | when available. The minimal possible 64-bitness |
4774 | is employed, just enough to get 64-bit integers into Perl. | |
4775 | This may mean using for example "long longs", while your memory | |
4776 | may still be limited to 2 gigabytes. | |
781b178c | 4777 | |
5440bc8e JH |
4778 | usecrosscompile (Cross.U): |
4779 | This variable conditionally defines the USE_CROSS_COMPILE symbol, | |
4780 | and indicates that Perl has been cross-compiled. | |
4781 | ||
781b178c | 4782 | usedl (dlsrc.U): |
ff935051 | 4783 | This variable indicates if the system supports dynamic |
781b178c JH |
4784 | loading of some sort. See also dlsrc and dlobj. |
4785 | ||
4d54317a JH |
4786 | usefaststdio (usefaststdio.U): |
4787 | This variable conditionally defines the USE_FAST_STDIO symbol, | |
4788 | and indicates that Perl should be built to use 'fast stdio'. | |
4789 | Defaults to define in Perls 5.8 and earlier, to undef later. | |
4790 | ||
aaacdc8b GS |
4791 | useithreads (usethreads.U): |
4792 | This variable conditionally defines the USE_ITHREADS symbol, | |
4793 | and indicates that Perl should be built to use the interpreter-based | |
4794 | threading implementation. | |
4795 | ||
5bf26616 | 4796 | uselargefiles (uselfs.U): |
1baac590 JH |
4797 | This variable conditionally defines the USE_LARGE_FILES symbol, |
4798 | and indicates that large file interfaces should be used when | |
c890dc6c | 4799 | available. |
1baac590 | 4800 | |
ca24dfc6 LV |
4801 | uselongdouble (uselongdbl.U): |
4802 | This variable conditionally defines the USE_LONG_DOUBLE symbol, | |
4803 | and indicates that long doubles should be used when available. | |
4804 | ||
fd550ca5 MB |
4805 | usemallocwrap (mallocsrc.U): |
4806 | This variable contains y if we are wrapping malloc to prevent | |
4807 | integer overflow during size calculations. | |
4808 | ||
1baac590 JH |
4809 | usemorebits (usemorebits.U): |
4810 | This variable conditionally defines the USE_MORE_BITS symbol, | |
4811 | and indicates that explicit 64-bit interfaces and long doubles | |
4812 | should be used when available. | |
4813 | ||
781b178c JH |
4814 | usemultiplicity (usemultiplicity.U): |
4815 | This variable conditionally defines the MULTIPLICITY symbol, | |
4816 | and indicates that Perl should be built to use multiplicity. | |
4817 | ||
4818 | usemymalloc (mallocsrc.U): | |
4819 | This variable contains y if the malloc that comes with this package | |
4820 | is desired over the system's version of malloc. People often include | |
4821 | special versions of malloc for effiency, but such versions are often | |
4822 | less portable. See also mallocsrc and mallocobj. | |
4823 | If this is 'y', then -lmalloc is removed from $libs. | |
4824 | ||
4825 | usenm (usenm.U): | |
4826 | This variable contains 'true' or 'false' depending whether the | |
4827 | nm extraction is wanted or not. | |
4828 | ||
4829 | useopcode (Extensions.U): | |
4830 | This variable holds either 'true' or 'false' to indicate | |
4831 | whether the Opcode extension should be used. The sole | |
4832 | use for this currently is to allow an easy mechanism | |
4833 | for users to skip the Opcode extension from the Configure | |
4834 | command line. | |
4835 | ||
4836 | useperlio (useperlio.U): | |
4837 | This variable conditionally defines the USE_PERLIO symbol, | |
4838 | and indicates that the PerlIO abstraction should be | |
4839 | used throughout. | |
4840 | ||
4841 | useposix (Extensions.U): | |
4842 | This variable holds either 'true' or 'false' to indicate | |
4843 | whether the POSIX extension should be used. The sole | |
4844 | use for this currently is to allow an easy mechanism | |
4845 | for hints files to indicate that POSIX will not compile | |
4846 | on a particular system. | |
4847 | ||
9514c62b JH |
4848 | usereentrant (usethreads.U): |
4849 | This variable conditionally defines the USE_REENTRANT_API symbol, | |
4850 | which indicates that the thread code may try to use the various | |
4851 | _r versions of library functions. This is only potentially | |
4852 | meaningful if usethreads is set and is very experimental, it is | |
4853 | not even prompted for. | |
4854 | ||
df4c34dc | 4855 | userelocatableinc (bin.U): |
88fe16b2 NC |
4856 | This variable is set to true to indicate that perl should relocate |
4857 | @INC entries at runtime based on the path to the perl binary. | |
4858 | Any @INC paths starting ".../" are relocated relative to the directory | |
4859 | containing the perl binary, and a logical cleanup of the path is then | |
4860 | made around the join point (removing "dir/../" pairs) | |
4861 | ||
781b178c JH |
4862 | usesfio (d_sfio.U): |
4863 | This variable is set to true when the user agrees to use sfio. | |
4864 | It is set to false when sfio is not available or when the user | |
4865 | explicitely requests not to use sfio. It is here primarily so | |
4866 | that command-line settings can override the auto-detection of | |
4867 | d_sfio without running into a "WHOA THERE". | |
4868 | ||
4869 | useshrplib (libperl.U): | |
40814d06 MB |
4870 | This variable is set to 'true' if the user wishes |
4871 | to build a shared libperl, and 'false' otherwise. | |
781b178c | 4872 | |
df4c34dc MB |
4873 | usesitecustomize (d_sitecustomize.U): |
4874 | This variable is set to true when the user requires a mechanism that | |
4875 | allows the sysadmin to add entries to @INC at runtime. This variable | |
4876 | being set, makes perl run '$sitelib/sitecustomize.pl' at startup. | |
4877 | ||
781b178c JH |
4878 | usesocks (usesocks.U): |
4879 | This variable conditionally defines the USE_SOCKS symbol, | |
4880 | and indicates that Perl should be built to use SOCKS. | |
4881 | ||
4882 | usethreads (usethreads.U): | |
b99a9337 | 4883 | This variable conditionally defines the USE_THREADS symbol, |
781b178c JH |
4884 | and indicates that Perl should be built to use threads. |
4885 | ||
9f50e519 NA |
4886 | usevendorprefix (vendorprefix.U): |
4887 | This variable tells whether the vendorprefix | |
4888 | and consequently other vendor* paths are in use. | |
4889 | ||
781b178c JH |
4890 | usevfork (d_vfork.U): |
4891 | This variable is set to true when the user accepts to use vfork. | |
4892 | It is set to false when no vfork is available or when the user | |
4893 | explicitely requests not to use vfork. | |
4894 | ||
4895 | usrinc (usrinc.U): | |
4896 | This variable holds the path of the include files, which is | |
4897 | usually /usr/include. It is mainly used by other Configure units. | |
4898 | ||
4899 | uuname (Loc.U): | |
4900 | This variable is defined but not used by Configure. | |
4901 | The value is a plain '' and is not useful. | |
4902 | ||
a22e52b9 JH |
4903 | uvoformat (perlxvf.U): |
4904 | This variable contains the format string used for printing | |
635aebb7 | 4905 | a Perl UV as an unsigned octal integer. |
a22e52b9 JH |
4906 | |
4907 | uvsize (perlxv.U): | |
4908 | This variable is the size of a UV in bytes. | |
4909 | ||
4910 | uvtype (perlxv.U): | |
4911 | This variable contains the C type used for Perl's UV. | |
4912 | ||
4913 | uvuformat (perlxvf.U): | |
4914 | This variable contains the format string used for printing | |
635aebb7 | 4915 | a Perl UV as an unsigned decimal integer. |
a22e52b9 JH |
4916 | |
4917 | uvxformat (perlxvf.U): | |
4918 | This variable contains the format string used for printing | |
6b4667fc A |
4919 | a Perl UV as an unsigned hexadecimal integer in lowercase abcdef. |
4920 | ||
4d54317a JH |
4921 | uvXUformat (perlxvf.U): |
4922 | This variable contains the format string used for printing | |
4923 | a Perl UV as an unsigned hexadecimal integer in uppercase ABCDEF. | |
4924 | ||
526fdc24 MS |
4925 | vendorarch (vendorarch.U): |
4926 | This variable contains the value of the PERL_VENDORARCH symbol. | |
635aebb7 | 4927 | It may have a ~ on the front. |
526fdc24 MS |
4928 | The standard distribution will put nothing in this directory. |
4929 | Vendors who distribute perl may wish to place their own | |
4930 | architecture-dependent modules and extensions in this directory with | |
635aebb7 | 4931 | MakeMaker Makefile.PL INSTALLDIRS=vendor |
526fdc24 MS |
4932 | or equivalent. See INSTALL for details. |
4933 | ||
4934 | vendorarchexp (vendorarch.U): | |
4935 | This variable is the ~name expanded version of vendorarch, so that you | |
4936 | may use it directly in Makefiles or shell scripts. | |
4937 | ||
0617aed7 | 4938 | vendorbin (vendorbin.U): |
f868067f JH |
4939 | This variable contains the eventual value of the VENDORBIN symbol. |
4940 | It may have a ~ on the front. | |
4941 | The standard distribution will put nothing in this directory. | |
4942 | Vendors who distribute perl may wish to place additional | |
4943 | binaries in this directory with | |
635aebb7 | 4944 | MakeMaker Makefile.PL INSTALLDIRS=vendor |
f868067f | 4945 | or equivalent. See INSTALL for details. |
0617aed7 JH |
4946 | |
4947 | vendorbinexp (vendorbin.U): | |
4948 | This variable is the ~name expanded version of vendorbin, so that you | |
4949 | may use it directly in Makefiles or shell scripts. | |
4950 | ||
e755722e | 4951 | vendorhtml1dir (vendorhtml1dir.U): |
635aebb7 | 4952 | This variable contains the name of the directory for html |
10305dfa JH |
4953 | pages. It may have a ~ on the front. |
4954 | The standard distribution will put nothing in this directory. | |
4955 | Vendors who distribute perl may wish to place their own | |
4956 | html pages in this directory with | |
635aebb7 | 4957 | MakeMaker Makefile.PL INSTALLDIRS=vendor |
10305dfa JH |
4958 | or equivalent. See INSTALL for details. |
4959 | ||
e755722e JH |
4960 | vendorhtml1direxp (vendorhtml1dir.U): |
4961 | This variable is the ~name expanded version of vendorhtml1dir, so that you | |
10305dfa JH |
4962 | may use it directly in Makefiles or shell scripts. |
4963 | ||
e755722e | 4964 | vendorhtml3dir (vendorhtml3dir.U): |
635aebb7 | 4965 | This variable contains the name of the directory for html |
10305dfa JH |
4966 | library pages. It may have a ~ on the front. |
4967 | The standard distribution will put nothing in this directory. | |
4968 | Vendors who distribute perl may wish to place their own | |
4969 | html pages for modules and extensions in this directory with | |
635aebb7 | 4970 | MakeMaker Makefile.PL INSTALLDIRS=vendor |
10305dfa JH |
4971 | or equivalent. See INSTALL for details. |
4972 | ||
e755722e JH |
4973 | vendorhtml3direxp (vendorhtml3dir.U): |
4974 | This variable is the ~name expanded version of vendorhtml3dir, so that you | |
10305dfa JH |
4975 | may use it directly in Makefiles or shell scripts. |
4976 | ||
a3635516 JH |
4977 | vendorlib (vendorlib.U): |
4978 | This variable contains the eventual value of the VENDORLIB symbol, | |
f868067f JH |
4979 | which is the name of the private library for this package. |
4980 | The standard distribution will put nothing in this directory. | |
4981 | Vendors who distribute perl may wish to place their own | |
4982 | modules in this directory with | |
635aebb7 | 4983 | MakeMaker Makefile.PL INSTALLDIRS=vendor |
f868067f | 4984 | or equivalent. See INSTALL for details. |
a3635516 | 4985 | |
526fdc24 MS |
4986 | vendorlib_stem (vendorlib.U): |
4987 | This variable is $vendorlibexp with any trailing version-specific component | |
4988 | removed. The elements in inc_version_list (inc_version_list.U) can | |
4989 | be tacked onto this variable to generate a list of directories to search. | |
4990 | ||
a3635516 JH |
4991 | vendorlibexp (vendorlib.U): |
4992 | This variable is the ~name expanded version of vendorlib, so that you | |
4993 | may use it directly in Makefiles or shell scripts. | |
4994 | ||
e755722e | 4995 | vendorman1dir (vendorman1dir.U): |
635aebb7 | 4996 | This variable contains the name of the directory for man1 |
10305dfa JH |
4997 | pages. It may have a ~ on the front. |
4998 | The standard distribution will put nothing in this directory. | |
4999 | Vendors who distribute perl may wish to place their own | |
5000 | man1 pages in this directory with | |
635aebb7 | 5001 | MakeMaker Makefile.PL INSTALLDIRS=vendor |
10305dfa JH |
5002 | or equivalent. See INSTALL for details. |
5003 | ||
e755722e JH |
5004 | vendorman1direxp (vendorman1dir.U): |
5005 | This variable is the ~name expanded version of vendorman1dir, so that you | |
10305dfa JH |
5006 | may use it directly in Makefiles or shell scripts. |
5007 | ||
e755722e | 5008 | vendorman3dir (vendorman3dir.U): |
635aebb7 | 5009 | This variable contains the name of the directory for man3 |
10305dfa JH |
5010 | pages. It may have a ~ on the front. |
5011 | The standard distribution will put nothing in this directory. | |
5012 | Vendors who distribute perl may wish to place their own | |
5013 | man3 pages in this directory with | |
635aebb7 | 5014 | MakeMaker Makefile.PL INSTALLDIRS=vendor |
10305dfa JH |
5015 | or equivalent. See INSTALL for details. |
5016 | ||
e755722e JH |
5017 | vendorman3direxp (vendorman3dir.U): |
5018 | This variable is the ~name expanded version of vendorman3dir, so that you | |
10305dfa JH |
5019 | may use it directly in Makefiles or shell scripts. |
5020 | ||
a3635516 JH |
5021 | vendorprefix (vendorprefix.U): |
5022 | This variable holds the full absolute path of the directory below | |
5023 | which the vendor will install add-on packages. | |
f868067f | 5024 | See INSTALL for usage and examples. |
a3635516 JH |
5025 | |
5026 | vendorprefixexp (vendorprefix.U): | |
5027 | This variable holds the full absolute path of the directory below | |
5028 | which the vendor will install add-on packages. Derived from vendorprefix. | |
5029 | ||
10305dfa JH |
5030 | vendorscript (vendorscript.U): |
5031 | This variable contains the eventual value of the VENDORSCRIPT symbol. | |
5032 | It may have a ~ on the front. | |
5033 | The standard distribution will put nothing in this directory. | |
5034 | Vendors who distribute perl may wish to place additional | |
5035 | executable scripts in this directory with | |
635aebb7 | 5036 | MakeMaker Makefile.PL INSTALLDIRS=vendor |
10305dfa JH |
5037 | or equivalent. See INSTALL for details. |
5038 | ||
5039 | vendorscriptexp (vendorscript.U): | |
5040 | This variable is the ~name expanded version of vendorscript, so that you | |
5041 | may use it directly in Makefiles or shell scripts. | |
5042 | ||
781b178c | 5043 | version (patchlevel.U): |
ff935051 | 5044 | The full version number of this package, such as 5.6.1 (or 5_6_1). |
c890dc6c | 5045 | This combines revision, patchlevel, and subversion to get the |
ff935051 JH |
5046 | full version number, including any possible subversions. |
5047 | This is suitable for use as a directory name, and hence is | |
5048 | filesystem dependent. | |
781b178c | 5049 | |
27713a04 JH |
5050 | version_patchlevel_string (patchlevel.U): |
5051 | This is a string combining version, subversion and | |
635aebb7 AL |
5052 | perl_patchlevel (if perl_patchlevel is non-zero). |
5053 | It is typically something like | |
27713a04 JH |
5054 | 'version 7 subversion 1' or |
5055 | 'version 7 subversion 1 patchlevel 11224' | |
5056 | It is computed here to avoid duplication of code in myconfig.SH | |
635aebb7 | 5057 | and lib/Config.pm. |
27713a04 | 5058 | |
d56c5707 JH |
5059 | versiononly (versiononly.U): |
5060 | If set, this symbol indicates that only the version-specific | |
5061 | components of a perl installation should be installed. | |
5062 | This may be useful for making a test installation of a new | |
5063 | version without disturbing the existing installation. | |
5064 | Setting versiononly is equivalent to setting installperl's -v option. | |
5065 | In particular, the non-versioned scripts and programs such as | |
5066 | a2p, c2ph, h2xs, pod2*, and perldoc are not installed | |
5067 | (see INSTALL for a more complete list). Nor are the man | |
5068 | pages installed. | |
5069 | Usually, this is undef. | |
5070 | ||
781b178c JH |
5071 | vi (Loc.U): |
5072 | This variable is defined but not used by Configure. | |
5073 | The value is a plain '' and is not useful. | |
5074 | ||
5075 | voidflags (voidflags.U): | |
5076 | This variable contains the eventual value of the VOIDFLAGS symbol, | |
5077 | which indicates how much support of the void type is given by this | |
5078 | compiler. See VOIDFLAGS for more info. | |
5079 | ||
5080 | xlibpth (libpth.U): | |
5081 | This variable holds extra path (space-separated) used to find | |
5082 | libraries on this platform, for example CPU-specific libraries | |
5083 | (on multi-CPU platforms) may be listed here. | |
5084 | ||
4492b098 JH |
5085 | yacc (yacc.U): |
5086 | This variable holds the name of the compiler compiler we | |
5087 | want to use in the Makefile. It can be yacc, byacc, or bison -y. | |
5088 | ||
2d967e39 JH |
5089 | yaccflags (yacc.U): |
5090 | This variable contains any additional yacc flags desired by the | |
5091 | user. It is up to the Makefile to use this. | |
5092 | ||
781b178c JH |
5093 | zcat (Loc.U): |
5094 | This variable is defined but not used by Configure. | |
5095 | The value is a plain '' and is not useful. | |
5096 | ||
5097 | zip (Loc.U): | |
5bf26616 | 5098 | This variable is used internally by Configure to determine the |
781b178c JH |
5099 | full pathname (if any) of the zip program. After Configure runs, |
5100 | the value is reset to a plain "zip" and is not useful. | |
5101 |