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