Commit | Line | Data |
---|---|---|
d7418ba7 | 1 | This file contains a description of all the shell variables whose value is |
2 | determined by the Configure script. Variables intended for use in C | |
ebc74a4b GS |
3 | programs (e.g. I_UNISTD) are already described in config_h.SH. [`configpm' |
4 | generates pod documentation for Config.pm from this file--please try to keep | |
5 | the formatting regular.] | |
d7418ba7 | 6 | |
781b178c JH |
7 | _a (Unix.U): |
8 | This variable defines the extension used for ordinary libraries. | |
9 | For unix, it is '.a'. The '.' is included. Other possible | |
10 | values include '.lib'. | |
11 | ||
12 | _exe (Unix.U): | |
13 | This variable defines the extension used for executable files. | |
14 | For unix it is empty. Other possible values include '.exe'. | |
15 | ||
16 | _o (Unix.U): | |
17 | This variable defines the extension used for object files. | |
18 | For unix, it is '.o'. The '.' is included. Other possible | |
19 | values include '.obj'. | |
20 | ||
21 | afs (afs.U): | |
22 | This variable is set to 'true' if AFS (Andrew File System) is used | |
23 | on the system, 'false' otherwise. It is possible to override this | |
24 | with a hint value or command line option, but you'd better know | |
25 | what you are doing. | |
26 | ||
27 | alignbytes (alignbytes.U): | |
28 | This variable holds the number of bytes required to align a | |
87b71857 JH |
29 | double-- or a long double when applicable. Usual values are |
30 | 2, 4 and 8. The default is eight, for safety. | |
781b178c JH |
31 | |
32 | ansi2knr (ansi2knr.U): | |
33 | This variable is set if the user needs to run ansi2knr. | |
34 | Currently, this is not supported, so we just abort. | |
35 | ||
36 | aphostname (d_gethname.U): | |
37 | This variable contains the command which can be used to compute the | |
38 | host name. The command is fully qualified by its absolute path, to make | |
39 | it safe when used by a process with super-user privileges. | |
40 | ||
ff935051 JH |
41 | api_revision (patchlevel.U): |
42 | The three variables, api_revision, api_version, and | |
43 | api_subversion, specify the version of the oldest perl binary | |
44 | compatible with the present perl. In a full version string | |
45 | such as '5.6.1', api_revision is the '5'. | |
46 | Prior to 5.5.640, the format was a floating point number, | |
47 | like 5.00563. | |
48 | perl.c:incpush() and lib/lib.pm will automatically search in | |
49 | $sitelib/.. for older directories back to the limit specified | |
50 | by these api_ variables. This is only useful if you have a | |
51 | perl library directory tree structured like the default one. | |
52 | See INSTALL for how this works. The versioned site_perl | |
53 | directory was introduced in 5.005, so that is the lowest | |
54 | possible value. The version list appropriate for the current | |
55 | system is determined in inc_version_list.U. | |
56 | XXX To do: Since compatibility can depend on compile time | |
57 | options (such as bincompat, longlong, etc.) it should | |
58 | (perhaps) be set by Configure, but currently it isn't. | |
59 | Currently, we read a hard-wired value from patchlevel.h. | |
60 | Perhaps what we ought to do is take the hard-wired value from | |
61 | patchlevel.h but then modify it if the current Configure | |
62 | options warrant. patchlevel.h then would use an #ifdef guard. | |
63 | ||
64 | api_subversion (patchlevel.U): | |
65 | The three variables, api_revision, api_version, and | |
66 | api_subversion, specify the version of the oldest perl binary | |
67 | compatible with the present perl. In a full version string | |
68 | such as '5.6.1', api_subversion is the '1'. See api_revision for | |
69 | full details. | |
70 | ||
71 | api_version (patchlevel.U): | |
72 | The three variables, api_revision, api_version, and | |
73 | api_subversion, specify the version of the oldest perl binary | |
74 | compatible with the present perl. In a full version string | |
75 | such as '5.6.1', api_version is the '6'. See api_revision for | |
76 | full details. As a special case, 5.5.0 is rendered in the | |
77 | old-style as 5.005. (In the 5.005_0x maintenance series, | |
78 | this was the only versioned directory in $sitelib.) | |
79 | ||
80 | api_versionstring (patchlevel.U): | |
81 | This variable combines api_revision, api_version, and | |
82 | api_subversion in a format such as 5.6.1 (or 5_6_1) suitable | |
83 | for use as a directory name. This is filesystem dependent. | |
781b178c JH |
84 | |
85 | ar (Loc.U): | |
5bf26616 | 86 | This variable is used internally by Configure to determine the |
781b178c JH |
87 | full pathname (if any) of the ar program. After Configure runs, |
88 | the value is reset to a plain "ar" and is not useful. | |
89 | ||
90 | archlib (archlib.U): | |
91 | This variable holds the name of the directory in which the user wants | |
92 | to put architecture-dependent public library files for $package. | |
93 | It is most often a local directory such as /usr/local/lib. | |
94 | Programs using this variable must be prepared to deal | |
95 | with filename expansion. | |
96 | ||
97 | archlibexp (archlib.U): | |
98 | This variable is the same as the archlib variable, but is | |
99 | filename expanded at configuration time, for convenient use. | |
100 | ||
101 | archname64 (use64bits.U): | |
102 | This variable is used for the 64-bitness part of $archname. | |
103 | ||
104 | archname (archname.U): | |
105 | This variable is a short name to characterize the current | |
106 | architecture. It is used mainly to construct the default archlib. | |
107 | ||
108 | archobjs (Unix.U): | |
109 | This variable defines any additional objects that must be linked | |
110 | in with the program on this architecture. On unix, it is usually | |
111 | empty. It is typically used to include emulations of unix calls | |
112 | or other facilities. For perl on OS/2, for example, this would | |
113 | include os2/os2.obj. | |
114 | ||
115 | awk (Loc.U): | |
5bf26616 | 116 | This variable is used internally by Configure to determine the |
781b178c JH |
117 | full pathname (if any) of the awk program. After Configure runs, |
118 | the value is reset to a plain "awk" and is not useful. | |
119 | ||
120 | baserev (baserev.U): | |
121 | The base revision level of this package, from the .package file. | |
122 | ||
123 | bash (Loc.U): | |
124 | This variable is defined but not used by Configure. | |
125 | The value is a plain '' and is not useful. | |
126 | ||
127 | bin (bin.U): | |
128 | This variable holds the name of the directory in which the user wants | |
129 | to put publicly executable images for the package in question. It | |
130 | is most often a local directory such as /usr/local/bin. Programs using | |
131 | this variable must be prepared to deal with ~name substitution. | |
132 | ||
d71b2b6b JH |
133 | bincompat5005 (bincompat5005.U): |
134 | This variable contains y if Perl 5.006 should be binary-compatible | |
135 | with Perl 5.005. | |
136 | ||
781b178c JH |
137 | binexp (bin.U): |
138 | This is the same as the bin variable, but is filename expanded at | |
139 | configuration time, for use in your makefiles. | |
140 | ||
141 | bison (Loc.U): | |
142 | This variable is defined but not used by Configure. | |
143 | The value is a plain '' and is not useful. | |
144 | ||
145 | byacc (Loc.U): | |
5bf26616 | 146 | This variable is used internally by Configure to determine the |
781b178c JH |
147 | full pathname (if any) of the byacc program. After Configure runs, |
148 | the value is reset to a plain "byacc" and is not useful. | |
149 | ||
150 | byteorder (byteorder.U): | |
151 | This variable holds the byte order. In the following, larger digits | |
152 | indicate more significance. The variable byteorder is either 4321 | |
153 | on a big-endian machine, or 1234 on a little-endian, or 87654321 | |
154 | on a Cray ... or 3412 with weird order ! | |
155 | ||
156 | c (n.U): | |
157 | This variable contains the \c string if that is what causes the echo | |
158 | command to suppress newline. Otherwise it is null. Correct usage is | |
159 | $echo $n "prompt for a question: $c". | |
160 | ||
161 | castflags (d_castneg.U): | |
162 | This variable contains a flag that precise difficulties the | |
163 | compiler has casting odd floating values to unsigned long: | |
164 | 0 = ok | |
165 | 1 = couldn't cast < 0 | |
166 | 2 = couldn't cast >= 0x80000000 | |
167 | 4 = couldn't cast in argument expression list | |
168 | ||
169 | cat (Loc.U): | |
5bf26616 | 170 | This variable is used internally by Configure to determine the |
781b178c JH |
171 | full pathname (if any) of the cat program. After Configure runs, |
172 | the value is reset to a plain "cat" and is not useful. | |
173 | ||
174 | cc (cc.U): | |
175 | This variable holds the name of a command to execute a C compiler which | |
176 | can resolve multiple global references that happen to have the same | |
177 | name. Usual values are 'cc', 'Mcc', 'cc -M', and 'gcc'. | |
178 | ||
179 | cccdlflags (dlsrc.U): | |
180 | This variable contains any special flags that might need to be | |
181 | passed with 'cc -c' to compile modules to be used to create a shared | |
182 | library that will be used for dynamic loading. For hpux, this | |
183 | should be +z. It is up to the makefile to use it. | |
184 | ||
185 | ccdlflags (dlsrc.U): | |
186 | This variable contains any special flags that might need to be | |
187 | passed to cc to link with a shared library for dynamic loading. | |
188 | It is up to the makefile to use it. For sunos 4.1, it should | |
189 | be empty. | |
190 | ||
191 | ccflags (ccflags.U): | |
192 | This variable contains any additional C compiler flags desired by | |
193 | the user. It is up to the Makefile to use this. | |
194 | ||
195 | ccsymbols (Cppsym.U): | |
196 | The variable contains the symbols defined by the C compiler alone. | |
781b178c JH |
197 | The list is a space-separated list of symbol=value tokens. |
198 | ||
199 | cf_by (cf_who.U): | |
200 | Login name of the person who ran the Configure script and answered the | |
201 | questions. This is used to tag both config.sh and config_h.SH. | |
202 | ||
203 | cf_email (cf_email.U): | |
204 | Electronic mail address of the person who ran Configure. This can be | |
205 | used by units that require the user's e-mail, like MailList.U. | |
206 | ||
207 | cf_time (cf_who.U): | |
208 | Holds the output of the "date" command when the configuration file was | |
209 | produced. This is used to tag both config.sh and config_h.SH. | |
210 | ||
a22e52b9 JH |
211 | charsize (charsize.U): |
212 | This variable contains the value of the CHARSIZE symbol, which | |
213 | indicates to the C program how many bytes there are in a character. | |
214 | ||
781b178c JH |
215 | chgrp (Loc.U): |
216 | This variable is defined but not used by Configure. | |
217 | The value is a plain '' and is not useful. | |
218 | ||
219 | chmod (Loc.U): | |
220 | This variable is defined but not used by Configure. | |
221 | The value is a plain '' and is not useful. | |
222 | ||
223 | chown (Loc.U): | |
224 | This variable is defined but not used by Configure. | |
225 | The value is a plain '' and is not useful. | |
226 | ||
227 | clocktype (d_times.U): | |
228 | This variable holds the type returned by times(). It can be long, | |
229 | or clock_t on BSD sites (in which case <sys/types.h> should be | |
230 | included). | |
231 | ||
232 | comm (Loc.U): | |
5bf26616 | 233 | This variable is used internally by Configure to determine the |
781b178c JH |
234 | full pathname (if any) of the comm program. After Configure runs, |
235 | the value is reset to a plain "comm" and is not useful. | |
236 | ||
237 | compress (Loc.U): | |
238 | This variable is defined but not used by Configure. | |
239 | The value is a plain '' and is not useful. | |
240 | ||
ff935051 JH |
241 | CONFIGDOTSH (Oldsyms.U): |
242 | This is set to 'true' in config.sh so that a shell script | |
243 | sourcing config.sh can tell if it has been sourced already. | |
244 | ||
781b178c JH |
245 | contains (contains.U): |
246 | This variable holds the command to do a grep with a proper return | |
247 | status. On most sane systems it is simply "grep". On insane systems | |
248 | it is a grep followed by a cat followed by a test. This variable | |
249 | is primarily for the use of other Configure units. | |
250 | ||
251 | cp (Loc.U): | |
5bf26616 | 252 | This variable is used internally by Configure to determine the |
781b178c JH |
253 | full pathname (if any) of the cp program. After Configure runs, |
254 | the value is reset to a plain "cp" and is not useful. | |
255 | ||
256 | cpio (Loc.U): | |
257 | This variable is defined but not used by Configure. | |
258 | The value is a plain '' and is not useful. | |
259 | ||
260 | cpp (Loc.U): | |
5bf26616 | 261 | This variable is used internally by Configure to determine the |
781b178c JH |
262 | full pathname (if any) of the cpp program. After Configure runs, |
263 | the value is reset to a plain "cpp" and is not useful. | |
264 | ||
265 | cpp_stuff (cpp_stuff.U): | |
266 | This variable contains an identification of the catenation mechanism | |
267 | used by the C preprocessor. | |
268 | ||
269 | cppccsymbols (Cppsym.U): | |
fe749a9f JH |
270 | The variable contains the symbols defined by both |
271 | the bare C compiler and during a compilation that | |
272 | includes stdio.h. | |
781b178c JH |
273 | The list is a space-separated list of symbol=value tokens. |
274 | ||
275 | cppflags (ccflags.U): | |
276 | This variable holds the flags that will be passed to the C pre- | |
277 | processor. It is up to the Makefile to use it. | |
278 | ||
279 | cpplast (cppstdin.U): | |
280 | This variable has the same functionality as cppminus, only it applies | |
281 | to cpprun and not cppstdin. | |
282 | ||
283 | cppminus (cppstdin.U): | |
284 | This variable contains the second part of the string which will invoke | |
285 | the C preprocessor on the standard input and produce to standard | |
286 | output. This variable will have the value "-" if cppstdin needs | |
287 | a minus to specify standard input, otherwise the value is "". | |
288 | ||
289 | cpprun (cppstdin.U): | |
290 | This variable contains the command which will invoke a C preprocessor | |
291 | on standard input and put the output to stdout. It is guaranteed not | |
292 | to be a wrapper and may be a null string if no preprocessor can be | |
293 | made directly available. This preprocessor might be different from the | |
294 | one used by the C compiler. Don't forget to append cpplast after the | |
295 | preprocessor options. | |
296 | ||
297 | cppstdin (cppstdin.U): | |
298 | This variable contains the command which will invoke the C | |
299 | preprocessor on standard input and put the output to stdout. | |
300 | It is primarily used by other Configure units that ask about | |
301 | preprocessor symbols. | |
302 | ||
303 | cppsymbols (Cppsym.U): | |
fe749a9f JH |
304 | The variable contains the symbols during a compilation |
305 | that includes stdio.h. | |
781b178c JH |
306 | The list is a space-separated list of symbol=value tokens. |
307 | ||
308 | crosscompile (crosscompile.U): | |
309 | This variable conditionally defines the CROSSCOMPILE symbol | |
310 | which signifies that the build process is be a cross-compilation. | |
311 | This is normally set by hints files or from Configure command line. | |
312 | ||
313 | cryptlib (d_crypt.U): | |
314 | This variable holds -lcrypt or the path to a libcrypt.a archive if | |
315 | the crypt() function is not defined in the standard C library. It is | |
316 | up to the Makefile to use this. | |
317 | ||
318 | csh (Loc.U): | |
5bf26616 | 319 | This variable is used internally by Configure to determine the |
781b178c JH |
320 | full pathname (if any) of the csh program. After Configure runs, |
321 | the value is reset to a plain "csh" and is not useful. | |
322 | ||
323 | d_access (d_access.U): | |
324 | This variable conditionally defines HAS_ACCESS if the access() system | |
325 | call is available to check for access permissions using real IDs. | |
326 | ||
327 | d_accessx (d_accessx.U): | |
328 | This variable conditionally defines the HAS_ACCESSX symbol, which | |
329 | indicates to the C program that the accessx() routine is available. | |
330 | ||
331 | d_alarm (d_alarm.U): | |
332 | This variable conditionally defines the HAS_ALARM symbol, which | |
333 | indicates to the C program that the alarm() routine is available. | |
334 | ||
335 | d_archlib (archlib.U): | |
336 | This variable conditionally defines ARCHLIB to hold the pathname | |
337 | of architecture-dependent library files for $package. If | |
338 | $archlib is the same as $privlib, then this is set to undef. | |
339 | ||
11dc3f68 JH |
340 | d_atolf (atolf.U): |
341 | This variable conditionally defines the HAS_ATOLF symbol, which | |
342 | indicates to the C program that the atolf() routine is available. | |
343 | ||
344 | d_atoll (atoll.U): | |
345 | This variable conditionally defines the HAS_ATOLL symbol, which | |
346 | indicates to the C program that the atoll() routine is available. | |
347 | ||
781b178c JH |
348 | d_attribut (d_attribut.U): |
349 | This variable conditionally defines HASATTRIBUTE, which | |
350 | indicates the C compiler can check for function attributes, | |
351 | such as printf formats. | |
352 | ||
353 | d_bcmp (d_bcmp.U): | |
354 | This variable conditionally defines the HAS_BCMP symbol if | |
355 | the bcmp() routine is available to compare strings. | |
356 | ||
357 | d_bcopy (d_bcopy.U): | |
358 | This variable conditionally defines the HAS_BCOPY symbol if | |
359 | the bcopy() routine is available to copy strings. | |
360 | ||
d71b2b6b JH |
361 | d_bincompat5005 (bincompat5005.U): |
362 | This variable conditionally defines BINCOMPAT5005 so that embed.h | |
363 | can take special action if Perl 5.006 should be binary-compatible | |
364 | with Perl 5.005. This is impossible for builds that use features | |
365 | like threads and multiplicity it is always $undef for those versions. | |
366 | ||
781b178c JH |
367 | d_bsd (Guess.U): |
368 | This symbol conditionally defines the symbol BSD when running on a | |
369 | BSD system. | |
370 | ||
371 | d_bsdgetpgrp (d_getpgrp.U): | |
372 | This variable conditionally defines USE_BSD_GETPGRP if | |
373 | getpgrp needs one arguments whereas USG one needs none. | |
374 | ||
375 | d_bsdsetpgrp (d_setpgrp.U): | |
376 | This variable conditionally defines USE_BSD_SETPGRP if | |
377 | setpgrp needs two arguments whereas USG one needs none. | |
378 | See also d_setpgid for a POSIX interface. | |
379 | ||
380 | d_bzero (d_bzero.U): | |
381 | This variable conditionally defines the HAS_BZERO symbol if | |
382 | the bzero() routine is available to set memory to 0. | |
383 | ||
384 | d_casti32 (d_casti32.U): | |
385 | This variable conditionally defines CASTI32, which indicates | |
386 | whether the C compiler can cast large floats to 32-bit ints. | |
387 | ||
388 | d_castneg (d_castneg.U): | |
389 | This variable conditionally defines CASTNEG, which indicates | |
390 | wether the C compiler can cast negative float to unsigned. | |
391 | ||
392 | d_charvspr (d_vprintf.U): | |
393 | This variable conditionally defines CHARVSPRINTF if this system | |
394 | has vsprintf returning type (char*). The trend seems to be to | |
395 | declare it as "int vsprintf()". | |
396 | ||
397 | d_chown (d_chown.U): | |
398 | This variable conditionally defines the HAS_CHOWN symbol, which | |
399 | indicates to the C program that the chown() routine is available. | |
400 | ||
401 | d_chroot (d_chroot.U): | |
402 | This variable conditionally defines the HAS_CHROOT symbol, which | |
403 | indicates to the C program that the chroot() routine is available. | |
404 | ||
405 | d_chsize (d_chsize.U): | |
406 | This variable conditionally defines the CHSIZE symbol, which | |
407 | indicates to the C program that the chsize() routine is available | |
408 | to truncate files. You might need a -lx to get this routine. | |
409 | ||
410 | d_closedir (d_closedir.U): | |
411 | This variable conditionally defines HAS_CLOSEDIR if closedir() is | |
412 | available. | |
413 | ||
781b178c JH |
414 | d_const (d_const.U): |
415 | This variable conditionally defines the HASCONST symbol, which | |
416 | indicates to the C program that this C compiler knows about the | |
417 | const type. | |
418 | ||
419 | d_crypt (d_crypt.U): | |
420 | This variable conditionally defines the CRYPT symbol, which | |
421 | indicates to the C program that the crypt() routine is available | |
422 | to encrypt passwords and the like. | |
423 | ||
424 | d_csh (d_csh.U): | |
425 | This variable conditionally defines the CSH symbol, which | |
426 | indicates to the C program that the C-shell exists. | |
427 | ||
428 | d_cuserid (d_cuserid.U): | |
429 | This variable conditionally defines the HAS_CUSERID symbol, which | |
430 | indicates to the C program that the cuserid() routine is available | |
431 | to get character login names. | |
432 | ||
433 | d_dbl_dig (d_dbl_dig.U): | |
434 | This variable conditionally defines d_dbl_dig if this system's | |
435 | header files provide DBL_DIG, which is the number of significant | |
436 | digits in a double precision number. | |
437 | ||
781b178c JH |
438 | d_difftime (d_difftime.U): |
439 | This variable conditionally defines the HAS_DIFFTIME symbol, which | |
440 | indicates to the C program that the difftime() routine is available. | |
441 | ||
781b178c JH |
442 | d_dirnamlen (i_dirent.U): |
443 | This variable conditionally defines DIRNAMLEN, which indicates | |
444 | to the C program that the length of directory entry names is | |
445 | provided by a d_namelen field. | |
446 | ||
447 | d_dlerror (d_dlerror.U): | |
448 | This variable conditionally defines the HAS_DLERROR symbol, which | |
449 | indicates to the C program that the dlerror() routine is available. | |
450 | ||
451 | d_dlopen (d_dlopen.U): | |
452 | This variable conditionally defines the HAS_DLOPEN symbol, which | |
453 | indicates to the C program that the dlopen() routine is available. | |
454 | ||
455 | d_dlsymun (d_dlsymun.U): | |
456 | This variable conditionally defines DLSYM_NEEDS_UNDERSCORE, which | |
457 | indicates that we need to prepend an underscore to the symbol | |
458 | name before calling dlsym(). | |
459 | ||
460 | d_dosuid (d_dosuid.U): | |
461 | This variable conditionally defines the symbol DOSUID, which | |
462 | tells the C program that it should insert setuid emulation code | |
463 | on hosts which have setuid #! scripts disabled. | |
464 | ||
465 | d_drand48proto (d_drand48proto.U): | |
466 | This variable conditionally defines the HAS_DRAND48_PROTO symbol, | |
467 | which indicates to the C program that the system provides | |
468 | a prototype for the drand48() function. Otherwise, it is | |
469 | up to the program to supply one. | |
470 | ||
471 | d_dup2 (d_dup2.U): | |
472 | This variable conditionally defines HAS_DUP2 if dup2() is | |
473 | available to duplicate file descriptors. | |
474 | ||
475 | d_eaccess (d_eaccess.U): | |
476 | This variable conditionally defines the HAS_EACCESS symbol, which | |
477 | indicates to the C program that the eaccess() routine is available. | |
478 | ||
479 | d_endgrent (d_endgrent.U): | |
480 | This variable conditionally defines the HAS_ENDGRENT symbol, which | |
481 | indicates to the C program that the endgrent() routine is available | |
482 | for sequential access of the group database. | |
483 | ||
484 | d_endhent (d_endhent.U): | |
485 | This variable conditionally defines HAS_ENDHOSTENT if endhostent() is | |
486 | available to close whatever was being used for host queries. | |
487 | ||
488 | d_endnent (d_endnent.U): | |
489 | This variable conditionally defines HAS_ENDNETENT if endnetent() is | |
490 | available to close whatever was being used for network queries. | |
491 | ||
492 | d_endpent (d_endpent.U): | |
493 | This variable conditionally defines HAS_ENDPROTOENT if endprotoent() is | |
494 | available to close whatever was being used for protocol queries. | |
495 | ||
496 | d_endpwent (d_endpwent.U): | |
497 | This variable conditionally defines the HAS_ENDPWENT symbol, which | |
498 | indicates to the C program that the endpwent() routine is available | |
499 | for sequential access of the passwd database. | |
500 | ||
501 | d_endsent (d_endsent.U): | |
502 | This variable conditionally defines HAS_ENDSERVENT if endservent() is | |
503 | available to close whatever was being used for service queries. | |
504 | ||
505 | d_endspent (d_endspent.U): | |
506 | This variable conditionally defines HAS_ENDSPENT if endspent() is | |
507 | available to finalize the scan of SysV shadow password entries. | |
508 | ||
509 | d_eofnblk (nblock_io.U): | |
510 | This variable conditionally defines EOF_NONBLOCK if EOF can be seen | |
511 | when reading from a non-blocking I/O source. | |
512 | ||
513 | d_eunice (Guess.U): | |
514 | This variable conditionally defines the symbols EUNICE and VAX, which | |
515 | alerts the C program that it must deal with ideosyncracies of VMS. | |
516 | ||
517 | d_fchmod (d_fchmod.U): | |
518 | This variable conditionally defines the HAS_FCHMOD symbol, which | |
519 | indicates to the C program that the fchmod() routine is available | |
520 | to change mode of opened files. | |
521 | ||
522 | d_fchown (d_fchown.U): | |
523 | This variable conditionally defines the HAS_FCHOWN symbol, which | |
524 | indicates to the C program that the fchown() routine is available | |
525 | to change ownership of opened files. | |
526 | ||
527 | d_fcntl (d_fcntl.U): | |
528 | This variable conditionally defines the HAS_FCNTL symbol, and indicates | |
529 | whether the fcntl() function exists | |
530 | ||
531 | d_fd_macros (d_fd_set.U): | |
532 | This variable contains the eventual value of the HAS_FD_MACROS symbol, | |
533 | which indicates if your C compiler knows about the macros which | |
534 | manipulate an fd_set. | |
535 | ||
536 | d_fd_set (d_fd_set.U): | |
537 | This variable contains the eventual value of the HAS_FD_SET symbol, | |
538 | which indicates if your C compiler knows about the fd_set typedef. | |
539 | ||
540 | d_fds_bits (d_fd_set.U): | |
541 | This variable contains the eventual value of the HAS_FDS_BITS symbol, | |
542 | which indicates if your fd_set typedef contains the fds_bits member. | |
543 | If you have an fd_set typedef, but the dweebs who installed it did | |
544 | a half-fast job and neglected to provide the macros to manipulate | |
545 | an fd_set, HAS_FDS_BITS will let us know how to fix the gaffe. | |
546 | ||
781b178c JH |
547 | d_fgetpos (d_fgetpos.U): |
548 | This variable conditionally defines HAS_FGETPOS if fgetpos() is | |
549 | available to get the file position indicator. | |
550 | ||
781b178c JH |
551 | d_flexfnam (d_flexfnam.U): |
552 | This variable conditionally defines the FLEXFILENAMES symbol, which | |
553 | indicates that the system supports filenames longer than 14 characters. | |
554 | ||
781b178c JH |
555 | d_flock (d_flock.U): |
556 | This variable conditionally defines HAS_FLOCK if flock() is | |
557 | available to do file locking. | |
558 | ||
781b178c JH |
559 | d_fork (d_fork.U): |
560 | This variable conditionally defines the HAS_FORK symbol, which | |
561 | indicates to the C program that the fork() routine is available. | |
562 | ||
563 | d_fpathconf (d_pathconf.U): | |
564 | This variable conditionally defines the HAS_FPATHCONF symbol, which | |
565 | indicates to the C program that the pathconf() routine is available | |
566 | to determine file-system related limits and options associated | |
567 | with a given open file descriptor. | |
568 | ||
c890dc6c | 569 | d_fpos64_t (d_fpos64_t.U): |
ca24dfc6 | 570 | This symbol will be defined if the C compiler supports fpos64_t. |
781b178c | 571 | |
ad27e871 | 572 | d_fs_data_s (d_fs_data_s.U): |
0545a864 JH |
573 | This variable conditionally defines the HAS_STRUCT_FS_DATA symbol, |
574 | which indicates that the struct fs_data is supported. | |
575 | ||
781b178c JH |
576 | d_fseeko (d_fseeko.U): |
577 | This variable conditionally defines the HAS_FSEEKO symbol, which | |
578 | indicates to the C program that the fseeko() routine is available. | |
579 | ||
781b178c JH |
580 | d_fsetpos (d_fsetpos.U): |
581 | This variable conditionally defines HAS_FSETPOS if fsetpos() is | |
582 | available to set the file position indicator. | |
583 | ||
0545a864 | 584 | d_fstatfs (d_fstatfs.U): |
781b178c JH |
585 | This variable conditionally defines the HAS_FSTATFS symbol, which |
586 | indicates to the C program that the fstatfs() routine is available. | |
587 | ||
588 | d_fstatvfs (d_statvfs.U): | |
589 | This variable conditionally defines the HAS_FSTATVFS symbol, which | |
590 | indicates to the C program that the fstatvfs() routine is available. | |
591 | ||
781b178c JH |
592 | d_ftello (d_ftello.U): |
593 | This variable conditionally defines the HAS_FTELLO symbol, which | |
594 | indicates to the C program that the ftello() routine is available. | |
595 | ||
596 | d_ftime (d_ftime.U): | |
597 | This variable conditionally defines the HAS_FTIME symbol, which indicates | |
598 | that the ftime() routine exists. The ftime() routine is basically | |
599 | a sub-second accuracy clock. | |
600 | ||
ff935051 JH |
601 | d_Gconvert (d_gconvert.U): |
602 | This variable holds what Gconvert is defined as to convert | |
603 | floating point numbers into strings. It could be 'gconvert' | |
604 | or a more complex macro emulating gconvert with gcvt() or sprintf. | |
605 | Possible values are: | |
606 | d_Gconvert='gconvert((x),(n),(t),(b))' | |
607 | d_Gconvert='gcvt((x),(n),(b))' | |
608 | d_Gconvert='sprintf((b),"%.*g",(n),(x))' | |
609 | ||
49dabb45 JH |
610 | d_getcwd (d_getcwd.U): |
611 | This variable conditionally defines the HAS_GETCWD symbol, which | |
612 | indicates to the C program that the getcwd() routine is available | |
613 | to get the current working directory. | |
614 | ||
c890dc6c JH |
615 | d_getfsstat (d_getfsstat.U): |
616 | This variable conditionally defines the HAS_GETFSSTAT symbol, which | |
617 | indicates to the C program that the getfsstat() routine is available. | |
618 | ||
781b178c JH |
619 | d_getgrent (d_getgrent.U): |
620 | This variable conditionally defines the HAS_GETGRENT symbol, which | |
621 | indicates to the C program that the getgrent() routine is available | |
622 | for sequential access of the group database. | |
623 | ||
624 | d_getgrps (d_getgrps.U): | |
625 | This variable conditionally defines the HAS_GETGROUPS symbol, which | |
626 | indicates to the C program that the getgroups() routine is available | |
627 | to get the list of process groups. | |
628 | ||
629 | d_gethbyaddr (d_gethbyad.U): | |
630 | This variable conditionally defines the HAS_GETHOSTBYADDR symbol, which | |
631 | indicates to the C program that the gethostbyaddr() routine is available | |
632 | to look up hosts by their IP addresses. | |
633 | ||
634 | d_gethbyname (d_gethbynm.U): | |
635 | This variable conditionally defines the HAS_GETHOSTBYNAME symbol, which | |
636 | indicates to the C program that the gethostbyname() routine is available | |
637 | to look up host names in some data base or other. | |
638 | ||
639 | d_gethent (d_gethent.U): | |
640 | This variable conditionally defines HAS_GETHOSTENT if gethostent() is | |
641 | available to look up host names in some data base or another. | |
642 | ||
643 | d_gethname (d_gethname.U): | |
644 | This variable conditionally defines the HAS_GETHOSTNAME symbol, which | |
645 | indicates to the C program that the gethostname() routine may be | |
646 | used to derive the host name. | |
647 | ||
648 | d_gethostprotos (d_gethostprotos.U): | |
649 | This variable conditionally defines the HAS_GETHOST_PROTOS symbol, | |
650 | which indicates to the C program that <netdb.h> supplies | |
651 | prototypes for the various gethost*() functions. | |
652 | See also netdbtype.U for probing for various netdb types. | |
653 | ||
654 | d_getlogin (d_getlogin.U): | |
655 | This variable conditionally defines the HAS_GETLOGIN symbol, which | |
656 | indicates to the C program that the getlogin() routine is available | |
657 | to get the login name. | |
658 | ||
ad27e871 JH |
659 | d_getmnt (d_getmnt.U): |
660 | This variable conditionally defines the HAS_GETMNT symbol, which | |
661 | indicates to the C program that the getmnt() routine is available | |
662 | to retrieve one or more mount info blocks by filename. | |
663 | ||
781b178c JH |
664 | d_getmntent (d_getmntent.U): |
665 | This variable conditionally defines the HAS_GETMNTENT symbol, which | |
666 | indicates to the C program that the getmntent() routine is available | |
0617aed7 | 667 | to iterate through mounted files to get their mount info. |
781b178c JH |
668 | |
669 | d_getnbyaddr (d_getnbyad.U): | |
670 | This variable conditionally defines the HAS_GETNETBYADDR symbol, which | |
671 | indicates to the C program that the getnetbyaddr() routine is available | |
672 | to look up networks by their IP addresses. | |
673 | ||
674 | d_getnbyname (d_getnbynm.U): | |
675 | This variable conditionally defines the HAS_GETNETBYNAME symbol, which | |
676 | indicates to the C program that the getnetbyname() routine is available | |
677 | to look up networks by their names. | |
678 | ||
679 | d_getnent (d_getnent.U): | |
680 | This variable conditionally defines HAS_GETNETENT if getnetent() is | |
681 | available to look up network names in some data base or another. | |
682 | ||
683 | d_getnetprotos (d_getnetprotos.U): | |
684 | This variable conditionally defines the HAS_GETNET_PROTOS symbol, | |
685 | which indicates to the C program that <netdb.h> supplies | |
686 | prototypes for the various getnet*() functions. | |
687 | See also netdbtype.U for probing for various netdb types. | |
688 | ||
689 | d_getpbyname (d_getprotby.U): | |
690 | This variable conditionally defines the HAS_GETPROTOBYNAME | |
691 | symbol, which indicates to the C program that the | |
692 | getprotobyname() routine is available to look up protocols | |
693 | by their name. | |
694 | ||
695 | d_getpbynumber (d_getprotby.U): | |
696 | This variable conditionally defines the HAS_GETPROTOBYNUMBER | |
697 | symbol, which indicates to the C program that the | |
698 | getprotobynumber() routine is available to look up protocols | |
699 | by their number. | |
700 | ||
701 | d_getpent (d_getpent.U): | |
702 | This variable conditionally defines HAS_GETPROTOENT if getprotoent() is | |
703 | available to look up protocols in some data base or another. | |
704 | ||
705 | d_getpgid (d_getpgid.U): | |
706 | This variable conditionally defines the HAS_GETPGID symbol, which | |
707 | indicates to the C program that the getpgid(pid) function | |
708 | is available to get the process group id. | |
709 | ||
710 | d_getpgrp2 (d_getpgrp2.U): | |
711 | This variable conditionally defines the HAS_GETPGRP2 symbol, which | |
712 | indicates to the C program that the getpgrp2() (as in DG/UX) routine | |
713 | is available to get the current process group. | |
714 | ||
715 | d_getpgrp (d_getpgrp.U): | |
716 | This variable conditionally defines HAS_GETPGRP if getpgrp() is | |
717 | available to get the current process group. | |
718 | ||
719 | d_getppid (d_getppid.U): | |
720 | This variable conditionally defines the HAS_GETPPID symbol, which | |
721 | indicates to the C program that the getppid() routine is available | |
722 | to get the parent process ID. | |
723 | ||
724 | d_getprior (d_getprior.U): | |
725 | This variable conditionally defines HAS_GETPRIORITY if getpriority() | |
726 | is available to get a process's priority. | |
727 | ||
728 | d_getprotoprotos (d_getprotoprotos.U): | |
729 | This variable conditionally defines the HAS_GETPROTO_PROTOS symbol, | |
730 | which indicates to the C program that <netdb.h> supplies | |
731 | prototypes for the various getproto*() functions. | |
732 | See also netdbtype.U for probing for various netdb types. | |
733 | ||
734 | d_getpwent (d_getpwent.U): | |
735 | This variable conditionally defines the HAS_GETPWENT symbol, which | |
736 | indicates to the C program that the getpwent() routine is available | |
737 | for sequential access of the passwd database. | |
738 | ||
739 | d_getsbyname (d_getsrvby.U): | |
740 | This variable conditionally defines the HAS_GETSERVBYNAME | |
741 | symbol, which indicates to the C program that the | |
742 | getservbyname() routine is available to look up services | |
743 | by their name. | |
744 | ||
745 | d_getsbyport (d_getsrvby.U): | |
746 | This variable conditionally defines the HAS_GETSERVBYPORT | |
747 | symbol, which indicates to the C program that the | |
748 | getservbyport() routine is available to look up services | |
749 | by their port. | |
750 | ||
751 | d_getsent (d_getsent.U): | |
752 | This variable conditionally defines HAS_GETSERVENT if getservent() is | |
753 | available to look up network services in some data base or another. | |
754 | ||
755 | d_getservprotos (d_getservprotos.U): | |
756 | This variable conditionally defines the HAS_GETSERV_PROTOS symbol, | |
757 | which indicates to the C program that <netdb.h> supplies | |
758 | prototypes for the various getserv*() functions. | |
759 | See also netdbtype.U for probing for various netdb types. | |
760 | ||
761 | d_getspent (d_getspent.U): | |
762 | This variable conditionally defines HAS_GETSPENT if getspent() is | |
763 | available to retrieve SysV shadow password entries sequentially. | |
764 | ||
765 | d_getspnam (d_getspnam.U): | |
766 | This variable conditionally defines HAS_GETSPNAM if getspnam() is | |
767 | available to retrieve SysV shadow password entries by name. | |
768 | ||
769 | d_gettimeod (d_ftime.U): | |
770 | This variable conditionally defines the HAS_GETTIMEOFDAY symbol, which | |
771 | indicates that the gettimeofday() system call exists (to obtain a | |
772 | sub-second accuracy clock). You should probably include <sys/resource.h>. | |
773 | ||
774 | d_gnulibc (d_gnulibc.U): | |
775 | Defined if we're dealing with the GNU C Library. | |
776 | ||
777 | d_grpasswd (i_grp.U): | |
778 | This variable conditionally defines GRPASSWD, which indicates | |
779 | that struct group in <grp.h> contains gr_passwd. | |
780 | ||
781 | d_hasmntopt (d_hasmntopt.U): | |
782 | This variable conditionally defines the HAS_HASMNTOPT symbol, which | |
783 | indicates to the C program that the hasmntopt() routine is available | |
784 | to query the mount options of file systems. | |
785 | ||
786 | d_htonl (d_htonl.U): | |
787 | This variable conditionally defines HAS_HTONL if htonl() and its | |
788 | friends are available to do network order byte swapping. | |
789 | ||
fe749a9f JH |
790 | d_iconv (d_iconv.U): |
791 | This variable conditionally defines the HAS_ICONV symbol, which | |
792 | indicates to the C program that the iconv() routine is available. | |
793 | ||
781b178c JH |
794 | d_index (d_strchr.U): |
795 | This variable conditionally defines HAS_INDEX if index() and | |
796 | rindex() are available for string searching. | |
797 | ||
798 | d_inetaton (d_inetaton.U): | |
799 | This variable conditionally defines the HAS_INET_ATON symbol, which | |
800 | indicates to the C program that the inet_aton() function is available | |
801 | to parse IP address "dotted-quad" strings. | |
802 | ||
13b3f787 | 803 | d_int64_t (d_int64_t.U): |
781b178c JH |
804 | This symbol will be defined if the C compiler supports int64_t. |
805 | ||
781b178c JH |
806 | d_isascii (d_isascii.U): |
807 | This variable conditionally defines the HAS_ISASCII constant, | |
808 | which indicates to the C program that isascii() is available. | |
809 | ||
810 | d_killpg (d_killpg.U): | |
811 | This variable conditionally defines the HAS_KILLPG symbol, which | |
812 | indicates to the C program that the killpg() routine is available | |
813 | to kill process groups. | |
814 | ||
815 | d_lchown (d_lchown.U): | |
816 | This variable conditionally defines the HAS_LCHOWN symbol, which | |
817 | indicates to the C program that the lchown() routine is available | |
818 | to operate on a symbolic link (instead of following the link). | |
819 | ||
ca24dfc6 LV |
820 | d_ldbl_dig (d_ldbl_dig.U): |
821 | This variable conditionally defines d_ldbl_dig if this system's | |
822 | header files provide LDBL_DIG, which is the number of significant | |
823 | digits in a long double precision number. | |
824 | ||
781b178c JH |
825 | d_link (d_link.U): |
826 | This variable conditionally defines HAS_LINK if link() is | |
827 | available to create hard links. | |
828 | ||
781b178c JH |
829 | d_locconv (d_locconv.U): |
830 | This variable conditionally defines HAS_LOCALECONV if localeconv() is | |
831 | available for numeric and monetary formatting conventions. | |
832 | ||
781b178c JH |
833 | d_lockf (d_lockf.U): |
834 | This variable conditionally defines HAS_LOCKF if lockf() is | |
835 | available to do file locking. | |
836 | ||
837 | d_longdbl (d_longdbl.U): | |
838 | This variable conditionally defines HAS_LONG_DOUBLE if | |
839 | the long double type is supported. | |
840 | ||
841 | d_longlong (d_longlong.U): | |
842 | This variable conditionally defines HAS_LONG_LONG if | |
843 | the long long type is supported. | |
844 | ||
c890dc6c JH |
845 | d_lseekproto (d_lseekproto.U): |
846 | This variable conditionally defines the HAS_LSEEK_PROTO symbol, | |
847 | which indicates to the C program that the system provides | |
848 | a prototype for the lseek() function. Otherwise, it is | |
849 | up to the program to supply one. | |
850 | ||
781b178c JH |
851 | d_lstat (d_lstat.U): |
852 | This variable conditionally defines HAS_LSTAT if lstat() is | |
853 | available to do file stats on symbolic links. | |
854 | ||
792d8dab JH |
855 | d_madvise (d_madvise.U): |
856 | This variable conditionally defines HAS_MADVISE if madvise() is | |
857 | available to map a file into memory. | |
858 | ||
781b178c JH |
859 | d_mblen (d_mblen.U): |
860 | This variable conditionally defines the HAS_MBLEN symbol, which | |
861 | indicates to the C program that the mblen() routine is available | |
862 | to find the number of bytes in a multibye character. | |
863 | ||
864 | d_mbstowcs (d_mbstowcs.U): | |
865 | This variable conditionally defines the HAS_MBSTOWCS symbol, which | |
866 | indicates to the C program that the mbstowcs() routine is available | |
867 | to convert a multibyte string into a wide character string. | |
868 | ||
869 | d_mbtowc (d_mbtowc.U): | |
870 | This variable conditionally defines the HAS_MBTOWC symbol, which | |
871 | indicates to the C program that the mbtowc() routine is available | |
872 | to convert multibyte to a wide character. | |
873 | ||
874 | d_memchr (d_memchr.U): | |
875 | This variable conditionally defines the HAS_MEMCHR symbol, which | |
876 | indicates to the C program that the memchr() routine is available | |
877 | to locate characters within a C string. | |
878 | ||
879 | d_memcmp (d_memcmp.U): | |
880 | This variable conditionally defines the HAS_MEMCMP symbol, which | |
881 | indicates to the C program that the memcmp() routine is available | |
882 | to compare blocks of memory. | |
883 | ||
884 | d_memcpy (d_memcpy.U): | |
885 | This variable conditionally defines the HAS_MEMCPY symbol, which | |
886 | indicates to the C program that the memcpy() routine is available | |
887 | to copy blocks of memory. | |
888 | ||
889 | d_memmove (d_memmove.U): | |
890 | This variable conditionally defines the HAS_MEMMOVE symbol, which | |
891 | indicates to the C program that the memmove() routine is available | |
892 | to copy potentatially overlapping blocks of memory. | |
893 | ||
894 | d_memset (d_memset.U): | |
895 | This variable conditionally defines the HAS_MEMSET symbol, which | |
896 | indicates to the C program that the memset() routine is available | |
897 | to set blocks of memory. | |
898 | ||
899 | d_mkdir (d_mkdir.U): | |
900 | This variable conditionally defines the HAS_MKDIR symbol, which | |
901 | indicates to the C program that the mkdir() routine is available | |
902 | to create directories.. | |
903 | ||
fe749a9f JH |
904 | d_mkdtemp (d_mkdtemp.U): |
905 | This variable conditionally defines the HAS_MKDTEMP symbol, which | |
906 | indicates to the C program that the mkdtemp() routine is available | |
907 | to exclusively create a uniquely named temporary directory. | |
908 | ||
781b178c JH |
909 | d_mkfifo (d_mkfifo.U): |
910 | This variable conditionally defines the HAS_MKFIFO symbol, which | |
911 | indicates to the C program that the mkfifo() routine is available. | |
912 | ||
fe749a9f JH |
913 | d_mkstemp (d_mkstemp.U): |
914 | This variable conditionally defines the HAS_MKSTEMP symbol, which | |
915 | indicates to the C program that the mkstemp() routine is available | |
916 | to exclusively create and open a uniquely named temporary file. | |
917 | ||
918 | d_mkstemps (d_mkstemps.U): | |
919 | This variable conditionally defines the HAS_MKSTEMPS symbol, which | |
920 | indicates to the C program that the mkstemps() routine is available | |
921 | to exclusively create and open a uniquely named (with a suffix) | |
922 | temporary file. | |
923 | ||
781b178c JH |
924 | d_mktime (d_mktime.U): |
925 | This variable conditionally defines the HAS_MKTIME symbol, which | |
926 | indicates to the C program that the mktime() routine is available. | |
927 | ||
fe749a9f JH |
928 | d_mmap (d_mmap.U): |
929 | This variable conditionally defines HAS_MMAP if mmap() is | |
930 | available to map a file into memory. | |
931 | ||
932 | d_mprotect (d_mprotect.U): | |
933 | This variable conditionally defines HAS_MPROTECT if mprotect() is | |
934 | available to modify the access protection of a memory mapped file. | |
935 | ||
781b178c JH |
936 | d_msg (d_msg.U): |
937 | This variable conditionally defines the HAS_MSG symbol, which | |
938 | indicates that the entire msg*(2) library is present. | |
939 | ||
940 | d_msg_ctrunc (d_socket.U): | |
941 | This variable conditionally defines the HAS_MSG_CTRUNC symbol, | |
942 | which indicates that the MSG_CTRUNC is available. #ifdef is | |
943 | not enough because it may be an enum, glibc has been known to do this. | |
944 | ||
945 | d_msg_dontroute (d_socket.U): | |
946 | This variable conditionally defines the HAS_MSG_DONTROUTE symbol, | |
947 | which indicates that the MSG_DONTROUTE is available. #ifdef is | |
948 | not enough because it may be an enum, glibc has been known to do this. | |
949 | ||
950 | d_msg_oob (d_socket.U): | |
951 | This variable conditionally defines the HAS_MSG_OOB symbol, | |
952 | which indicates that the MSG_OOB is available. #ifdef is | |
953 | not enough because it may be an enum, glibc has been known to do this. | |
954 | ||
955 | d_msg_peek (d_socket.U): | |
956 | This variable conditionally defines the HAS_MSG_PEEK symbol, | |
957 | which indicates that the MSG_PEEK is available. #ifdef is | |
958 | not enough because it may be an enum, glibc has been known to do this. | |
959 | ||
960 | d_msg_proxy (d_socket.U): | |
961 | This variable conditionally defines the HAS_MSG_PROXY symbol, | |
962 | which indicates that the MSG_PROXY is available. #ifdef is | |
963 | not enough because it may be an enum, glibc has been known to do this. | |
964 | ||
965 | d_msgctl (d_msgctl.U): | |
966 | This variable conditionally defines the HAS_MSGCTL symbol, which | |
967 | indicates to the C program that the msgctl() routine is available. | |
968 | ||
969 | d_msgget (d_msgget.U): | |
970 | This variable conditionally defines the HAS_MSGGET symbol, which | |
971 | indicates to the C program that the msgget() routine is available. | |
972 | ||
781b178c JH |
973 | d_msgrcv (d_msgrcv.U): |
974 | This variable conditionally defines the HAS_MSGRCV symbol, which | |
975 | indicates to the C program that the msgrcv() routine is available. | |
976 | ||
977 | d_msgsnd (d_msgsnd.U): | |
978 | This variable conditionally defines the HAS_MSGSND symbol, which | |
979 | indicates to the C program that the msgsnd() routine is available. | |
980 | ||
fe749a9f JH |
981 | d_msync (d_msync.U): |
982 | This variable conditionally defines HAS_MSYNC if msync() is | |
983 | available to synchronize a mapped file. | |
984 | ||
985 | d_munmap (d_munmap.U): | |
986 | This variable conditionally defines HAS_MUNMAP if munmap() is | |
987 | available to unmap a region mapped by mmap(). | |
988 | ||
781b178c JH |
989 | d_mymalloc (mallocsrc.U): |
990 | This variable conditionally defines MYMALLOC in case other parts | |
991 | of the source want to take special action if MYMALLOC is used. | |
992 | This may include different sorts of profiling or error detection. | |
993 | ||
781b178c JH |
994 | d_nice (d_nice.U): |
995 | This variable conditionally defines the HAS_NICE symbol, which | |
996 | indicates to the C program that the nice() routine is available. | |
997 | ||
78691af5 | 998 | d_nv_preserves_uv (perlxv.U): |
cce08f5b JH |
999 | This variable indicates whether a variable of type nvtype |
1000 | can preserve all the bits a variable of type uvtype. | |
1001 | ||
c890dc6c | 1002 | d_off64_t (d_off64_t.U): |
781b178c JH |
1003 | This symbol will be defined if the C compiler supports off64_t. |
1004 | ||
781b178c JH |
1005 | d_old_pthread_create_joinable (d_pthrattrj.U): |
1006 | This variable conditionally defines pthread_create_joinable. | |
1007 | undef if pthread.h defines PTHREAD_CREATE_JOINABLE. | |
1008 | ||
1009 | d_oldpthreads (usethreads.U): | |
1010 | This variable conditionally defines the OLD_PTHREADS_API symbol, | |
1011 | and indicates that Perl should be built to use the old | |
8c09e4ca | 1012 | draft POSIX threads API. This is only potentially meaningful if |
781b178c JH |
1013 | usethreads is set. |
1014 | ||
1015 | d_oldsock (d_socket.U): | |
1016 | This variable conditionally defines the OLDSOCKET symbol, which | |
1017 | indicates that the BSD socket interface is based on 4.1c and not 4.2. | |
1018 | ||
1019 | d_open3 (d_open3.U): | |
1020 | This variable conditionally defines the HAS_OPEN3 manifest constant, | |
1021 | which indicates to the C program that the 3 argument version of | |
1022 | the open(2) function is available. | |
1023 | ||
781b178c JH |
1024 | d_pathconf (d_pathconf.U): |
1025 | This variable conditionally defines the HAS_PATHCONF symbol, which | |
1026 | indicates to the C program that the pathconf() routine is available | |
1027 | to determine file-system related limits and options associated | |
1028 | with a given filename. | |
1029 | ||
1030 | d_pause (d_pause.U): | |
1031 | This variable conditionally defines the HAS_PAUSE symbol, which | |
1032 | indicates to the C program that the pause() routine is available | |
1033 | to suspend a process until a signal is received. | |
1034 | ||
1035 | d_phostname (d_gethname.U): | |
1036 | This variable conditionally defines the HAS_PHOSTNAME symbol, which | |
1037 | contains the shell command which, when fed to popen(), may be | |
1038 | used to derive the host name. | |
1039 | ||
1040 | d_pipe (d_pipe.U): | |
1041 | This variable conditionally defines the HAS_PIPE symbol, which | |
1042 | indicates to the C program that the pipe() routine is available | |
1043 | to create an inter-process channel. | |
1044 | ||
1045 | d_poll (d_poll.U): | |
1046 | This variable conditionally defines the HAS_POLL symbol, which | |
1047 | indicates to the C program that the poll() routine is available | |
1048 | to poll active file descriptors. | |
1049 | ||
1050 | d_portable (d_portable.U): | |
1051 | This variable conditionally defines the PORTABLE symbol, which | |
1052 | indicates to the C program that it should not assume that it is | |
1053 | running on the machine it was compiled on. | |
1054 | ||
ff935051 JH |
1055 | d_PRId64 (quadfio.U): |
1056 | This variable conditionally defines the PERL_PRId64 symbol, which | |
1057 | indiciates that stdio has a symbol to print 64-bit decimal numbers. | |
1058 | ||
1059 | d_PRIeldbl (longdblfio.U): | |
1060 | This variable conditionally defines the PERL_PRIfldlbl symbol, which | |
1061 | indiciates that stdio has a symbol to print long doubles. | |
1062 | ||
1063 | d_PRIEldbl (longdblfio.U): | |
1064 | This variable conditionally defines the PERL_PRIfldlbl symbol, which | |
1065 | indiciates that stdio has a symbol to print long doubles. | |
1066 | ||
1067 | d_PRIfldbl (longdblfio.U): | |
1068 | This variable conditionally defines the PERL_PRIfldlbl symbol, which | |
1069 | indiciates that stdio has a symbol to print long doubles. | |
1070 | ||
1071 | d_PRIFldbl (longdblfio.U): | |
1072 | This variable conditionally defines the PERL_PRIfldlbl symbol, which | |
1073 | indiciates that stdio has a symbol to print long doubles. | |
1074 | ||
1075 | d_PRIgldbl (longdblfio.U): | |
1076 | This variable conditionally defines the PERL_PRIfldlbl symbol, which | |
1077 | indiciates that stdio has a symbol to print long doubles. | |
1078 | ||
1079 | d_PRIGldbl (longdblfio.U): | |
1080 | This variable conditionally defines the PERL_PRIfldlbl symbol, which | |
1081 | indiciates that stdio has a symbol to print long doubles. | |
1082 | ||
1083 | d_PRIi64 (quadfio.U): | |
1084 | This variable conditionally defines the PERL_PRIi64 symbol, which | |
1085 | indiciates that stdio has a symbol to print 64-bit decimal numbers. | |
1086 | ||
1087 | d_PRIo64 (quadfio.U): | |
1088 | This variable conditionally defines the PERL_PRIo64 symbol, which | |
1089 | indiciates that stdio has a symbol to print 64-bit octal numbers. | |
1090 | ||
1091 | d_PRIu64 (quadfio.U): | |
1092 | This variable conditionally defines the PERL_PRIu64 symbol, which | |
1093 | indiciates that stdio has a symbol to print 64-bit unsigned decimal | |
1094 | numbers. | |
1095 | ||
1096 | d_PRIx64 (quadfio.U): | |
1097 | This variable conditionally defines the PERL_PRIx64 symbol, which | |
1098 | indiciates that stdio has a symbol to print 64-bit hexadecimal numbers. | |
1099 | ||
1100 | d_PRIX64 (quadfio.U): | |
1101 | This variable conditionally defines the PERL_PRIX64 symbol, which | |
1102 | indiciates that stdio has a symbol to print 64-bit hExADECimAl numbers. | |
1103 | ||
781b178c JH |
1104 | d_pthread_yield (d_pthread_y.U): |
1105 | This variable conditionally defines the HAS_PTHREAD_YIELD | |
1106 | symbol if the pthread_yield routine is available to yield | |
1107 | the execution of the current thread. | |
1108 | ||
1109 | d_pwage (i_pwd.U): | |
1110 | This variable conditionally defines PWAGE, which indicates | |
1111 | that struct passwd contains pw_age. | |
1112 | ||
1113 | d_pwchange (i_pwd.U): | |
1114 | This variable conditionally defines PWCHANGE, which indicates | |
1115 | that struct passwd contains pw_change. | |
1116 | ||
1117 | d_pwclass (i_pwd.U): | |
1118 | This variable conditionally defines PWCLASS, which indicates | |
1119 | that struct passwd contains pw_class. | |
1120 | ||
1121 | d_pwcomment (i_pwd.U): | |
1122 | This variable conditionally defines PWCOMMENT, which indicates | |
1123 | that struct passwd contains pw_comment. | |
1124 | ||
1125 | d_pwexpire (i_pwd.U): | |
1126 | This variable conditionally defines PWEXPIRE, which indicates | |
1127 | that struct passwd contains pw_expire. | |
1128 | ||
1129 | d_pwgecos (i_pwd.U): | |
1130 | This variable conditionally defines PWGECOS, which indicates | |
1131 | that struct passwd contains pw_gecos. | |
1132 | ||
1133 | d_pwpasswd (i_pwd.U): | |
1134 | This variable conditionally defines PWPASSWD, which indicates | |
1135 | that struct passwd contains pw_passwd. | |
1136 | ||
1137 | d_pwquota (i_pwd.U): | |
1138 | This variable conditionally defines PWQUOTA, which indicates | |
1139 | that struct passwd contains pw_quota. | |
1140 | ||
792d8dab JH |
1141 | d_qgcvt (d_qgcvt.U): |
1142 | This variable conditionally defines the HAS_QGCVT symbol, which | |
1143 | indicates to the C program that the qgcvt() routine is available. | |
1144 | ||
de1c2614 JH |
1145 | d_quad (quadtype.U): |
1146 | This variable, if defined, tells that there's a 64-bit integer type, | |
1147 | quadtype. | |
1148 | ||
781b178c JH |
1149 | d_readdir (d_readdir.U): |
1150 | This variable conditionally defines HAS_READDIR if readdir() is | |
1151 | available to read directory entries. | |
1152 | ||
1153 | d_readlink (d_readlink.U): | |
1154 | This variable conditionally defines the HAS_READLINK symbol, which | |
1155 | indicates to the C program that the readlink() routine is available | |
1156 | to read the value of a symbolic link. | |
1157 | ||
781b178c JH |
1158 | d_rename (d_rename.U): |
1159 | This variable conditionally defines the HAS_RENAME symbol, which | |
1160 | indicates to the C program that the rename() routine is available | |
1161 | to rename files. | |
1162 | ||
1163 | d_rewinddir (d_readdir.U): | |
1164 | This variable conditionally defines HAS_REWINDDIR if rewinddir() is | |
1165 | available. | |
1166 | ||
1167 | d_rmdir (d_rmdir.U): | |
1168 | This variable conditionally defines HAS_RMDIR if rmdir() is | |
1169 | available to remove directories. | |
1170 | ||
1171 | d_safebcpy (d_safebcpy.U): | |
1172 | This variable conditionally defines the HAS_SAFE_BCOPY symbol if | |
1173 | the bcopy() routine can do overlapping copies. | |
1174 | ||
1175 | d_safemcpy (d_safemcpy.U): | |
1176 | This variable conditionally defines the HAS_SAFE_MEMCPY symbol if | |
1177 | the memcpy() routine can do overlapping copies. | |
1178 | ||
1179 | d_sanemcmp (d_sanemcmp.U): | |
1180 | This variable conditionally defines the HAS_SANE_MEMCMP symbol if | |
1181 | the memcpy() routine is available and can be used to compare relative | |
1182 | magnitudes of chars with their high bits set. | |
1183 | ||
1184 | d_sched_yield (d_pthread_y.U): | |
1185 | This variable conditionally defines the HAS_SCHED_YIELD | |
1186 | symbol if the sched_yield routine is available to yield | |
1187 | the execution of the current thread. | |
1188 | ||
1189 | d_scm_rights (d_socket.U): | |
1190 | This variable conditionally defines the HAS_SCM_RIGHTS symbol, | |
1191 | which indicates that the SCM_RIGHTS is available. #ifdef is | |
1192 | not enough because it may be an enum, glibc has been known to do this. | |
1193 | ||
781b178c JH |
1194 | d_seekdir (d_readdir.U): |
1195 | This variable conditionally defines HAS_SEEKDIR if seekdir() is | |
1196 | available. | |
1197 | ||
1198 | d_select (d_select.U): | |
1199 | This variable conditionally defines HAS_SELECT if select() is | |
1200 | available to select active file descriptors. A <sys/time.h> | |
1201 | inclusion may be necessary for the timeout field. | |
1202 | ||
1203 | d_sem (d_sem.U): | |
1204 | This variable conditionally defines the HAS_SEM symbol, which | |
1205 | indicates that the entire sem*(2) library is present. | |
1206 | ||
1207 | d_semctl (d_semctl.U): | |
1208 | This variable conditionally defines the HAS_SEMCTL symbol, which | |
1209 | indicates to the C program that the semctl() routine is available. | |
1210 | ||
1211 | d_semctl_semid_ds (d_union_semun.U): | |
1212 | This variable conditionally defines USE_SEMCTL_SEMID_DS, which | |
1213 | indicates that struct semid_ds * is to be used for semctl IPC_STAT. | |
1214 | ||
1215 | d_semctl_semun (d_union_semun.U): | |
1216 | This variable conditionally defines USE_SEMCTL_SEMUN, which | |
1217 | indicates that union semun is to be used for semctl IPC_STAT. | |
1218 | ||
1219 | d_semget (d_semget.U): | |
1220 | This variable conditionally defines the HAS_SEMGET symbol, which | |
1221 | indicates to the C program that the semget() routine is available. | |
1222 | ||
1223 | d_semop (d_semop.U): | |
1224 | This variable conditionally defines the HAS_SEMOP symbol, which | |
1225 | indicates to the C program that the semop() routine is available. | |
1226 | ||
781b178c JH |
1227 | d_setegid (d_setegid.U): |
1228 | This variable conditionally defines the HAS_SETEGID symbol, which | |
1229 | indicates to the C program that the setegid() routine is available | |
1230 | to change the effective gid of the current program. | |
1231 | ||
1232 | d_seteuid (d_seteuid.U): | |
1233 | This variable conditionally defines the HAS_SETEUID symbol, which | |
1234 | indicates to the C program that the seteuid() routine is available | |
1235 | to change the effective uid of the current program. | |
1236 | ||
1237 | d_setgrent (d_setgrent.U): | |
1238 | This variable conditionally defines the HAS_SETGRENT symbol, which | |
1239 | indicates to the C program that the setgrent() routine is available | |
1240 | for initializing sequential access to the group database. | |
1241 | ||
1242 | d_setgrps (d_setgrps.U): | |
1243 | This variable conditionally defines the HAS_SETGROUPS symbol, which | |
1244 | indicates to the C program that the setgroups() routine is available | |
1245 | to set the list of process groups. | |
1246 | ||
1247 | d_sethent (d_sethent.U): | |
1248 | This variable conditionally defines HAS_SETHOSTENT if sethostent() is | |
1249 | available. | |
1250 | ||
1251 | d_setlinebuf (d_setlnbuf.U): | |
1252 | This variable conditionally defines the HAS_SETLINEBUF symbol, which | |
1253 | indicates to the C program that the setlinebuf() routine is available | |
1254 | to change stderr or stdout from block-buffered or unbuffered to a | |
1255 | line-buffered mode. | |
1256 | ||
1257 | d_setlocale (d_setlocale.U): | |
1258 | This variable conditionally defines HAS_SETLOCALE if setlocale() is | |
1259 | available to handle locale-specific ctype implementations. | |
1260 | ||
1261 | d_setnent (d_setnent.U): | |
1262 | This variable conditionally defines HAS_SETNETENT if setnetent() is | |
1263 | available. | |
1264 | ||
1265 | d_setpent (d_setpent.U): | |
1266 | This variable conditionally defines HAS_SETPROTOENT if setprotoent() is | |
1267 | available. | |
1268 | ||
1269 | d_setpgid (d_setpgid.U): | |
1270 | This variable conditionally defines the HAS_SETPGID symbol if the | |
1271 | setpgid(pid, gpid) function is available to set process group ID. | |
1272 | ||
1273 | d_setpgrp2 (d_setpgrp2.U): | |
1274 | This variable conditionally defines the HAS_SETPGRP2 symbol, which | |
1275 | indicates to the C program that the setpgrp2() (as in DG/UX) routine | |
1276 | is available to set the current process group. | |
1277 | ||
1278 | d_setpgrp (d_setpgrp.U): | |
1279 | This variable conditionally defines HAS_SETPGRP if setpgrp() is | |
1280 | available to set the current process group. | |
1281 | ||
1282 | d_setprior (d_setprior.U): | |
1283 | This variable conditionally defines HAS_SETPRIORITY if setpriority() | |
1284 | is available to set a process's priority. | |
1285 | ||
1286 | d_setpwent (d_setpwent.U): | |
1287 | This variable conditionally defines the HAS_SETPWENT symbol, which | |
1288 | indicates to the C program that the setpwent() routine is available | |
1289 | for initializing sequential access to the passwd database. | |
1290 | ||
1291 | d_setregid (d_setregid.U): | |
1292 | This variable conditionally defines HAS_SETREGID if setregid() is | |
1293 | available to change the real and effective gid of the current | |
1294 | process. | |
1295 | ||
1296 | d_setresgid (d_setregid.U): | |
1297 | This variable conditionally defines HAS_SETRESGID if setresgid() is | |
1298 | available to change the real, effective and saved gid of the current | |
1299 | process. | |
1300 | ||
1301 | d_setresuid (d_setreuid.U): | |
1302 | This variable conditionally defines HAS_SETREUID if setresuid() is | |
1303 | available to change the real, effective and saved uid of the current | |
1304 | process. | |
1305 | ||
1306 | d_setreuid (d_setreuid.U): | |
1307 | This variable conditionally defines HAS_SETREUID if setreuid() is | |
1308 | available to change the real and effective uid of the current | |
1309 | process. | |
1310 | ||
1311 | d_setrgid (d_setrgid.U): | |
1312 | This variable conditionally defines the HAS_SETRGID symbol, which | |
1313 | indicates to the C program that the setrgid() routine is available | |
1314 | to change the real gid of the current program. | |
1315 | ||
1316 | d_setruid (d_setruid.U): | |
1317 | This variable conditionally defines the HAS_SETRUID symbol, which | |
1318 | indicates to the C program that the setruid() routine is available | |
1319 | to change the real uid of the current program. | |
1320 | ||
1321 | d_setsent (d_setsent.U): | |
1322 | This variable conditionally defines HAS_SETSERVENT if setservent() is | |
1323 | available. | |
1324 | ||
1325 | d_setsid (d_setsid.U): | |
1326 | This variable conditionally defines HAS_SETSID if setsid() is | |
1327 | available to set the process group ID. | |
1328 | ||
1329 | d_setspent (d_setspent.U): | |
1330 | This variable conditionally defines HAS_SETSPENT if setspent() is | |
1331 | available to initialize the scan of SysV shadow password entries. | |
1332 | ||
1333 | d_setvbuf (d_setvbuf.U): | |
1334 | This variable conditionally defines the HAS_SETVBUF symbol, which | |
1335 | indicates to the C program that the setvbuf() routine is available | |
1336 | to change buffering on an open stdio stream. | |
1337 | ||
1338 | d_sfio (d_sfio.U): | |
1339 | This variable conditionally defines the USE_SFIO symbol, | |
1340 | and indicates whether sfio is available (and should be used). | |
1341 | ||
1342 | d_shm (d_shm.U): | |
1343 | This variable conditionally defines the HAS_SHM symbol, which | |
1344 | indicates that the entire shm*(2) library is present. | |
1345 | ||
1346 | d_shmat (d_shmat.U): | |
1347 | This variable conditionally defines the HAS_SHMAT symbol, which | |
1348 | indicates to the C program that the shmat() routine is available. | |
1349 | ||
1350 | d_shmatprototype (d_shmat.U): | |
1351 | This variable conditionally defines the HAS_SHMAT_PROTOTYPE | |
1352 | symbol, which indicates that sys/shm.h has a prototype for | |
1353 | shmat. | |
1354 | ||
1355 | d_shmctl (d_shmctl.U): | |
1356 | This variable conditionally defines the HAS_SHMCTL symbol, which | |
1357 | indicates to the C program that the shmctl() routine is available. | |
1358 | ||
1359 | d_shmdt (d_shmdt.U): | |
1360 | This variable conditionally defines the HAS_SHMDT symbol, which | |
1361 | indicates to the C program that the shmdt() routine is available. | |
1362 | ||
1363 | d_shmget (d_shmget.U): | |
1364 | This variable conditionally defines the HAS_SHMGET symbol, which | |
1365 | indicates to the C program that the shmget() routine is available. | |
1366 | ||
1367 | d_sigaction (d_sigaction.U): | |
1368 | This variable conditionally defines the HAS_SIGACTION symbol, which | |
1369 | indicates that the Vr4 sigaction() routine is available. | |
1370 | ||
1371 | d_sigsetjmp (d_sigsetjmp.U): | |
1372 | This variable conditionally defines the HAS_SIGSETJMP symbol, | |
1373 | which indicates that the sigsetjmp() routine is available to | |
1374 | call setjmp() and optionally save the process's signal mask. | |
1375 | ||
1376 | d_socket (d_socket.U): | |
1377 | This variable conditionally defines HAS_SOCKET, which indicates | |
1378 | that the BSD socket interface is supported. | |
1379 | ||
13b3f787 JH |
1380 | d_socklen_t (d_socklen_t.U): |
1381 | This symbol will be defined if the C compiler supports socklen_t. | |
1382 | ||
781b178c JH |
1383 | d_sockpair (d_socket.U): |
1384 | This variable conditionally defines the HAS_SOCKETPAIR symbol, which | |
1385 | indicates that the BSD socketpair() is supported. | |
1386 | ||
68d4903c JH |
1387 | d_sqrtl (d_sqrtl.U): |
1388 | This variable conditionally defines the HAS_SQRTL symbol, which | |
1389 | indicates to the C program that the sqrtl() routine is available. | |
1390 | ||
781b178c JH |
1391 | d_statblks (d_statblks.U): |
1392 | This variable conditionally defines USE_STAT_BLOCKS | |
1393 | if this system has a stat structure declaring | |
1394 | st_blksize and st_blocks. | |
1395 | ||
ad27e871 | 1396 | d_statfs_f_flags (d_statfs_f_flags.U): |
0545a864 | 1397 | This variable conditionally defines the HAS_STRUCT_STATFS_F_FLAGS |
781b178c JH |
1398 | symbol, which indicates to struct statfs from has f_flags member. |
1399 | This kind of struct statfs is coming from sys/mount.h (BSD), | |
1400 | not from sys/statfs.h (SYSV). | |
1401 | ||
ad27e871 | 1402 | d_statfs_s (d_statfs_s.U): |
0545a864 JH |
1403 | This variable conditionally defines the HAS_STRUCT_STATFS symbol, |
1404 | which indicates that the struct statfs is supported. | |
1405 | ||
781b178c JH |
1406 | d_statvfs (d_statvfs.U): |
1407 | This variable conditionally defines the HAS_STATVFS symbol, which | |
1408 | indicates to the C program that the statvfs() routine is available. | |
1409 | ||
1410 | d_stdio_cnt_lval (d_stdstdio.U): | |
1411 | This variable conditionally defines STDIO_CNT_LVALUE if the | |
1412 | FILE_cnt macro can be used as an lvalue. | |
1413 | ||
1414 | d_stdio_ptr_lval (d_stdstdio.U): | |
1415 | This variable conditionally defines STDIO_PTR_LVALUE if the | |
1416 | FILE_ptr macro can be used as an lvalue. | |
1417 | ||
1418 | d_stdio_stream_array (stdio_streams.U): | |
1419 | This variable tells whether there is an array holding | |
1420 | the stdio streams. | |
1421 | ||
1422 | d_stdiobase (d_stdstdio.U): | |
1423 | This variable conditionally defines USE_STDIO_BASE if this system | |
1424 | has a FILE structure declaring a usable _base field (or equivalent) | |
1425 | in stdio.h. | |
1426 | ||
1427 | d_stdstdio (d_stdstdio.U): | |
1428 | This variable conditionally defines USE_STDIO_PTR if this system | |
1429 | has a FILE structure declaring usable _ptr and _cnt fields (or | |
1430 | equivalent) in stdio.h. | |
1431 | ||
781b178c JH |
1432 | d_strchr (d_strchr.U): |
1433 | This variable conditionally defines HAS_STRCHR if strchr() and | |
1434 | strrchr() are available for string searching. | |
1435 | ||
1436 | d_strcoll (d_strcoll.U): | |
1437 | This variable conditionally defines HAS_STRCOLL if strcoll() is | |
1438 | available to compare strings using collating information. | |
1439 | ||
1440 | d_strctcpy (d_strctcpy.U): | |
1441 | This variable conditionally defines the USE_STRUCT_COPY symbol, which | |
1442 | indicates to the C program that this C compiler knows how to copy | |
1443 | structures. | |
1444 | ||
1445 | d_strerrm (d_strerror.U): | |
1446 | This variable holds what Strerrr is defined as to translate an error | |
1447 | code condition into an error message string. It could be 'strerror' | |
1448 | or a more complex macro emulating strrror with sys_errlist[], or the | |
1449 | "unknown" string when both strerror and sys_errlist are missing. | |
1450 | ||
1451 | d_strerror (d_strerror.U): | |
1452 | This variable conditionally defines HAS_STRERROR if strerror() is | |
1453 | available to translate error numbers to strings. | |
1454 | ||
1455 | d_strtod (d_strtod.U): | |
1456 | This variable conditionally defines the HAS_STRTOD symbol, which | |
1457 | indicates to the C program that the strtod() routine is available | |
1458 | to provide better numeric string conversion than atof(). | |
1459 | ||
1460 | d_strtol (d_strtol.U): | |
1461 | This variable conditionally defines the HAS_STRTOL symbol, which | |
1462 | indicates to the C program that the strtol() routine is available | |
1463 | to provide better numeric string conversion than atoi() and friends. | |
1464 | ||
ff935051 JH |
1465 | d_strtold (d_strtold.U): |
1466 | This variable conditionally defines the HAS_STRTOLD symbol, which | |
1467 | indicates to the C program that the strtold() routine is available. | |
1468 | ||
76d49b1c JH |
1469 | d_strtoll (d_strtoll.U): |
1470 | This variable conditionally defines the HAS_STRTOLL symbol, which | |
1471 | indicates to the C program that the strtoll() routine is available. | |
1472 | ||
781b178c JH |
1473 | d_strtoul (d_strtoul.U): |
1474 | This variable conditionally defines the HAS_STRTOUL symbol, which | |
1475 | indicates to the C program that the strtoul() routine is available | |
1476 | to provide conversion of strings to unsigned long. | |
1477 | ||
ff935051 | 1478 | d_strtoull (d_strtoull.U): |
11dc3f68 JH |
1479 | This variable conditionally defines the HAS_STRTOULL symbol, which |
1480 | indicates to the C program that the strtoull() routine is available. | |
1481 | ||
ff935051 JH |
1482 | d_strtouq (d_strtouq.U): |
1483 | This variable conditionally defines the HAS_STRTOUQ symbol, which | |
1484 | indicates to the C program that the strtouq() routine is available. | |
1485 | ||
781b178c JH |
1486 | d_strxfrm (d_strxfrm.U): |
1487 | This variable conditionally defines HAS_STRXFRM if strxfrm() is | |
1488 | available to transform strings. | |
1489 | ||
1490 | d_suidsafe (d_dosuid.U): | |
1491 | This variable conditionally defines SETUID_SCRIPTS_ARE_SECURE_NOW | |
1492 | if setuid scripts can be secure. This test looks in /dev/fd/. | |
1493 | ||
1494 | d_symlink (d_symlink.U): | |
1495 | This variable conditionally defines the HAS_SYMLINK symbol, which | |
1496 | indicates to the C program that the symlink() routine is available | |
1497 | to create symbolic links. | |
1498 | ||
1499 | d_syscall (d_syscall.U): | |
1500 | This variable conditionally defines HAS_SYSCALL if syscall() is | |
1501 | available call arbitrary system calls. | |
1502 | ||
1503 | d_sysconf (d_sysconf.U): | |
1504 | This variable conditionally defines the HAS_SYSCONF symbol, which | |
1505 | indicates to the C program that the sysconf() routine is available | |
1506 | to determine system related limits and options. | |
1507 | ||
1508 | d_sysernlst (d_strerror.U): | |
1509 | This variable conditionally defines HAS_SYS_ERRNOLIST if sys_errnolist[] | |
1510 | is available to translate error numbers to the symbolic name. | |
1511 | ||
1512 | d_syserrlst (d_strerror.U): | |
1513 | This variable conditionally defines HAS_SYS_ERRLIST if sys_errlist[] is | |
1514 | available to translate error numbers to strings. | |
1515 | ||
1516 | d_system (d_system.U): | |
1517 | This variable conditionally defines HAS_SYSTEM if system() is | |
1518 | available to issue a shell command. | |
1519 | ||
1520 | d_tcgetpgrp (d_tcgtpgrp.U): | |
1521 | This variable conditionally defines the HAS_TCGETPGRP symbol, which | |
1522 | indicates to the C program that the tcgetpgrp() routine is available. | |
1523 | to get foreground process group ID. | |
1524 | ||
1525 | d_tcsetpgrp (d_tcstpgrp.U): | |
1526 | This variable conditionally defines the HAS_TCSETPGRP symbol, which | |
1527 | indicates to the C program that the tcsetpgrp() routine is available | |
1528 | to set foreground process group ID. | |
1529 | ||
781b178c JH |
1530 | d_telldir (d_readdir.U): |
1531 | This variable conditionally defines HAS_TELLDIR if telldir() is | |
1532 | available. | |
1533 | ||
1534 | d_telldirproto (d_telldirproto.U): | |
1535 | This variable conditionally defines the HAS_TELLDIR_PROTO symbol, | |
1536 | which indicates to the C program that the system provides | |
1537 | a prototype for the telldir() function. Otherwise, it is | |
1538 | up to the program to supply one. | |
1539 | ||
1540 | d_time (d_time.U): | |
1541 | This variable conditionally defines the HAS_TIME symbol, which indicates | |
1542 | that the time() routine exists. The time() routine is normaly | |
1543 | provided on UNIX systems. | |
1544 | ||
1545 | d_times (d_times.U): | |
1546 | This variable conditionally defines the HAS_TIMES symbol, which indicates | |
1547 | that the times() routine exists. The times() routine is normaly | |
1548 | provided on UNIX systems. You may have to include <sys/times.h>. | |
1549 | ||
781b178c JH |
1550 | d_truncate (d_truncate.U): |
1551 | This variable conditionally defines HAS_TRUNCATE if truncate() is | |
1552 | available to truncate files. | |
1553 | ||
1554 | d_tzname (d_tzname.U): | |
1555 | This variable conditionally defines HAS_TZNAME if tzname[] is | |
1556 | available to access timezone names. | |
1557 | ||
1558 | d_umask (d_umask.U): | |
1559 | This variable conditionally defines the HAS_UMASK symbol, which | |
1560 | indicates to the C program that the umask() routine is available. | |
1561 | to set and get the value of the file creation mask. | |
1562 | ||
1563 | d_uname (d_gethname.U): | |
1564 | This variable conditionally defines the HAS_UNAME symbol, which | |
1565 | indicates to the C program that the uname() routine may be | |
1566 | used to derive the host name. | |
1567 | ||
1568 | d_union_semun (d_union_semun.U): | |
1569 | This variable conditionally defines HAS_UNION_SEMUN if the | |
1570 | union semun is defined by including <sys/sem.h>. | |
1571 | ||
0545a864 JH |
1572 | d_ustat (d_ustat.U): |
1573 | This variable conditionally defines HAS_USTAT if ustat() is | |
1574 | available to query file system statistics by dev_t. | |
1575 | ||
65f19062 GS |
1576 | d_vendorarch (vendorarch.U): |
1577 | This variable conditionally defined PERL_VENDORARCH. | |
1578 | ||
0617aed7 JH |
1579 | d_vendorbin (vendorbin.U): |
1580 | This variable conditionally defines PERL_VENDORBIN. | |
1581 | ||
a3635516 JH |
1582 | d_vendorlib (vendorlib.U): |
1583 | This variable conditionally defines PERL_VENDORLIB. | |
1584 | ||
781b178c JH |
1585 | d_vfork (d_vfork.U): |
1586 | This variable conditionally defines the HAS_VFORK symbol, which | |
1587 | indicates the vfork() routine is available. | |
1588 | ||
1589 | d_void_closedir (d_closedir.U): | |
1590 | This variable conditionally defines VOID_CLOSEDIR if closedir() | |
1591 | does not return a value. | |
1592 | ||
1593 | d_voidsig (d_voidsig.U): | |
1594 | This variable conditionally defines VOIDSIG if this system | |
1595 | declares "void (*signal(...))()" in signal.h. The old way was to | |
1596 | declare it as "int (*signal(...))()". | |
1597 | ||
1598 | d_voidtty (i_sysioctl.U): | |
1599 | This variable conditionally defines USE_IOCNOTTY to indicate that the | |
1600 | ioctl() call with TIOCNOTTY should be used to void tty association. | |
1601 | Otherwise (on USG probably), it is enough to close the standard file | |
1602 | decriptors and do a setpgrp(). | |
1603 | ||
1604 | d_volatile (d_volatile.U): | |
1605 | This variable conditionally defines the HASVOLATILE symbol, which | |
1606 | indicates to the C program that this C compiler knows about the | |
1607 | volatile declaration. | |
1608 | ||
1609 | d_vprintf (d_vprintf.U): | |
1610 | This variable conditionally defines the HAS_VPRINTF symbol, which | |
1611 | indicates to the C program that the vprintf() routine is available | |
1612 | to printf with a pointer to an argument list. | |
1613 | ||
1614 | d_wait4 (d_wait4.U): | |
1615 | This variable conditionally defines the HAS_WAIT4 symbol, which | |
1616 | indicates the wait4() routine is available. | |
1617 | ||
1618 | d_waitpid (d_waitpid.U): | |
1619 | This variable conditionally defines HAS_WAITPID if waitpid() is | |
1620 | available to wait for child process. | |
1621 | ||
1622 | d_wcstombs (d_wcstombs.U): | |
1623 | This variable conditionally defines the HAS_WCSTOMBS symbol, which | |
1624 | indicates to the C program that the wcstombs() routine is available | |
1625 | to convert wide character strings to multibyte strings. | |
1626 | ||
1627 | d_wctomb (d_wctomb.U): | |
1628 | This variable conditionally defines the HAS_WCTOMB symbol, which | |
1629 | indicates to the C program that the wctomb() routine is available | |
1630 | to convert a wide character to a multibyte. | |
1631 | ||
781b178c JH |
1632 | d_xenix (Guess.U): |
1633 | This variable conditionally defines the symbol XENIX, which alerts | |
1634 | the C program that it runs under Xenix. | |
1635 | ||
1636 | date (Loc.U): | |
5bf26616 | 1637 | This variable is used internally by Configure to determine the |
781b178c JH |
1638 | full pathname (if any) of the date program. After Configure runs, |
1639 | the value is reset to a plain "date" and is not useful. | |
1640 | ||
1641 | db_hashtype (i_db.U): | |
1642 | This variable contains the type of the hash structure element | |
1643 | in the <db.h> header file. In older versions of DB, it was | |
1644 | int, while in newer ones it is u_int32_t. | |
1645 | ||
1646 | db_prefixtype (i_db.U): | |
1647 | This variable contains the type of the prefix structure element | |
1648 | in the <db.h> header file. In older versions of DB, it was | |
1649 | int, while in newer ones it is size_t. | |
1650 | ||
1651 | defvoidused (voidflags.U): | |
1652 | This variable contains the default value of the VOIDUSED symbol (15). | |
1653 | ||
1654 | direntrytype (i_dirent.U): | |
1655 | This symbol is set to 'struct direct' or 'struct dirent' depending on | |
1656 | whether dirent is available or not. You should use this pseudo type to | |
1657 | portably declare your directory entries. | |
1658 | ||
1659 | dlext (dlext.U): | |
1660 | This variable contains the extension that is to be used for the | |
1661 | dynamically loaded modules that perl generaties. | |
1662 | ||
1663 | dlsrc (dlsrc.U): | |
1664 | This variable contains the name of the dynamic loading file that | |
1665 | will be used with the package. | |
1666 | ||
1667 | doublesize (doublesize.U): | |
1668 | This variable contains the value of the DOUBLESIZE symbol, which | |
1669 | indicates to the C program how many bytes there are in a double. | |
1670 | ||
1671 | drand01 (randfunc.U): | |
1672 | Indicates the macro to be used to generate normalized | |
1673 | random numbers. Uses randfunc, often divided by | |
1674 | (double) (((unsigned long) 1 << randbits)) in order to | |
1675 | normalize the result. | |
1676 | In C programs, the macro 'Drand01' is mapped to drand01. | |
1677 | ||
1678 | dynamic_ext (Extensions.U): | |
1679 | This variable holds a list of XS extension files we want to | |
1680 | link dynamically into the package. It is used by Makefile. | |
1681 | ||
1682 | eagain (nblock_io.U): | |
1683 | This variable bears the symbolic errno code set by read() when no | |
1684 | data is present on the file and non-blocking I/O was enabled (otherwise, | |
1685 | read() blocks naturally). | |
1686 | ||
1687 | ebcdic (ebcdic.U): | |
1688 | This variable conditionally defines EBCDIC if this | |
1689 | system uses EBCDIC encoding. Among other things, this | |
1690 | means that the character ranges are not contiguous. | |
1691 | See trnl.U | |
1692 | ||
1693 | echo (Loc.U): | |
5bf26616 | 1694 | This variable is used internally by Configure to determine the |
781b178c JH |
1695 | full pathname (if any) of the echo program. After Configure runs, |
1696 | the value is reset to a plain "echo" and is not useful. | |
1697 | ||
1698 | egrep (Loc.U): | |
5bf26616 | 1699 | This variable is used internally by Configure to determine the |
781b178c JH |
1700 | full pathname (if any) of the egrep program. After Configure runs, |
1701 | the value is reset to a plain "egrep" and is not useful. | |
1702 | ||
1703 | emacs (Loc.U): | |
1704 | This variable is defined but not used by Configure. | |
1705 | The value is a plain '' and is not useful. | |
1706 | ||
1707 | eunicefix (Init.U): | |
1708 | When running under Eunice this variable contains a command which will | |
1709 | convert a shell script to the proper form of text file for it to be | |
1710 | executable by the shell. On other systems it is a no-op. | |
1711 | ||
1712 | exe_ext (Unix.U): | |
1713 | This is an old synonym for _exe. | |
1714 | ||
1715 | expr (Loc.U): | |
5bf26616 | 1716 | This variable is used internally by Configure to determine the |
781b178c JH |
1717 | full pathname (if any) of the expr program. After Configure runs, |
1718 | the value is reset to a plain "expr" and is not useful. | |
1719 | ||
1720 | extensions (Extensions.U): | |
1721 | This variable holds a list of all extension files (both XS and | |
1722 | non-xs linked into the package. It is propagated to Config.pm | |
1723 | and is typically used to test whether a particular extesion | |
1724 | is available. | |
1725 | ||
1726 | fflushall (fflushall.U): | |
1727 | This symbol, if defined, tells that to flush | |
1728 | all pending stdio output one must loop through all | |
1729 | the stdio file handles stored in an array and fflush them. | |
1730 | Note that if fflushNULL is defined, fflushall will not | |
1731 | even be probed for and will be left undefined. | |
1732 | ||
ff935051 JH |
1733 | fflushNULL (fflushall.U): |
1734 | This symbol, if defined, tells that fflush(NULL) does flush | |
1735 | all pending stdio output. | |
1736 | ||
781b178c | 1737 | find (Loc.U): |
ff935051 JH |
1738 | This variable is defined but not used by Configure. |
1739 | The value is a plain '' and is not useful. | |
781b178c JH |
1740 | |
1741 | firstmakefile (Unix.U): | |
1742 | This variable defines the first file searched by make. On unix, | |
1743 | it is makefile (then Makefile). On case-insensitive systems, | |
1744 | it might be something else. This is only used to deal with | |
1745 | convoluted make depend tricks. | |
1746 | ||
1747 | flex (Loc.U): | |
1748 | This variable is defined but not used by Configure. | |
1749 | The value is a plain '' and is not useful. | |
1750 | ||
a22e52b9 JH |
1751 | fpossize (fpossize.U): |
1752 | This variable contains the size of a fpostype in bytes. | |
1753 | ||
781b178c | 1754 | fpostype (fpostype.U): |
a22e52b9 | 1755 | This variable defines Fpos_t to be something like fpos_t, long, |
781b178c JH |
1756 | uint, or whatever type is used to declare file positions in libc. |
1757 | ||
1758 | freetype (mallocsrc.U): | |
1759 | This variable contains the return type of free(). It is usually | |
1760 | void, but occasionally int. | |
1761 | ||
1762 | full_ar (Loc_ar.U): | |
1763 | This variable contains the full pathname to 'ar', whether or | |
1764 | not the user has specified 'portability'. This is only used | |
1765 | in the Makefile.SH. | |
1766 | ||
1767 | full_csh (d_csh.U): | |
1768 | This variable contains the full pathname to 'csh', whether or | |
1769 | not the user has specified 'portability'. This is only used | |
1770 | in the compiled C program, and we assume that all systems which | |
1771 | can share this executable will have the same full pathname to | |
1772 | 'csh.' | |
1773 | ||
1774 | full_sed (Loc_sed.U): | |
1775 | This variable contains the full pathname to 'sed', whether or | |
1776 | not the user has specified 'portability'. This is only used | |
1777 | in the compiled C program, and we assume that all systems which | |
1778 | can share this executable will have the same full pathname to | |
1779 | 'sed.' | |
1780 | ||
1781 | gccversion (cc.U): | |
1782 | If GNU cc (gcc) is used, this variable holds '1' or '2' to | |
1783 | indicate whether the compiler is version 1 or 2. This is used in | |
1784 | setting some of the default cflags. It is set to '' if not gcc. | |
1785 | ||
a22e52b9 JH |
1786 | gidformat (gidf.U): |
1787 | This variable contains the format string used for printing a Gid_t. | |
1788 | ||
785fb66b JH |
1789 | gidsign (gidsign.U): |
1790 | This variable contains the signedness of a gidtype. | |
1791 | 1 for unsigned, -1 for signed. | |
1792 | ||
1793 | gidsize (gidsize.U): | |
1794 | This variable contains the size of a gidtype in bytes. | |
1795 | ||
781b178c JH |
1796 | gidtype (gidtype.U): |
1797 | This variable defines Gid_t to be something like gid_t, int, | |
1798 | ushort, or whatever type is used to declare the return type | |
1799 | of getgid(). Typically, it is the type of group ids in the kernel. | |
1800 | ||
1801 | glibpth (libpth.U): | |
1802 | This variable holds the general path (space-separated) used to | |
1803 | find libraries. It may contain directories that do not exist on | |
1804 | this platform, libpth is the cleaned-up version. | |
1805 | ||
1806 | grep (Loc.U): | |
5bf26616 | 1807 | This variable is used internally by Configure to determine the |
781b178c JH |
1808 | full pathname (if any) of the grep program. After Configure runs, |
1809 | the value is reset to a plain "grep" and is not useful. | |
1810 | ||
1811 | groupcat (nis.U): | |
1812 | This variable contains a command that produces the text of the | |
1813 | /etc/group file. This is normally "cat /etc/group", but can be | |
1814 | "ypcat group" when NIS is used. | |
aaacdc8b GS |
1815 | On some systems, such as os390, there may be no equivalent |
1816 | command, in which case this variable is unset. | |
781b178c JH |
1817 | |
1818 | groupstype (groupstype.U): | |
1819 | This variable defines Groups_t to be something like gid_t, int, | |
1820 | ushort, or whatever type is used for the second argument to | |
1821 | getgroups() and setgroups(). Usually, this is the same as | |
1822 | gidtype (gid_t), but sometimes it isn't. | |
1823 | ||
1824 | gzip (Loc.U): | |
5bf26616 | 1825 | This variable is used internally by Configure to determine the |
781b178c JH |
1826 | full pathname (if any) of the gzip program. After Configure runs, |
1827 | the value is reset to a plain "gzip" and is not useful. | |
1828 | ||
1829 | h_fcntl (h_fcntl.U): | |
1830 | This is variable gets set in various places to tell i_fcntl that | |
1831 | <fcntl.h> should be included. | |
1832 | ||
1833 | h_sysfile (h_sysfile.U): | |
1834 | This is variable gets set in various places to tell i_sys_file that | |
1835 | <sys/file.h> should be included. | |
1836 | ||
1837 | hint (Oldconfig.U): | |
1838 | Gives the type of hints used for previous answers. May be one of | |
1839 | "default", "recommended" or "previous". | |
1840 | ||
1841 | hostcat (nis.U): | |
1842 | This variable contains a command that produces the text of the | |
1843 | /etc/hosts file. This is normally "cat /etc/hosts", but can be | |
1844 | "ypcat hosts" when NIS is used. | |
aaacdc8b GS |
1845 | On some systems, such as os390, there may be no equivalent |
1846 | command, in which case this variable is unset. | |
781b178c JH |
1847 | |
1848 | huge (models.U): | |
1849 | This variable contains a flag which will tell the C compiler and loader | |
1850 | to produce a program running with a huge memory model. If the | |
1851 | huge model is not supported, contains the flag to produce large | |
1852 | model programs. It is up to the Makefile to use this. | |
1853 | ||
a22e52b9 JH |
1854 | i16size (perlxv.U): |
1855 | This variable is the size of an I16 in bytes. | |
1856 | ||
1857 | i16type (perlxv.U): | |
1858 | This variable contains the C type used for Perl's I16. | |
1859 | ||
1860 | i32size (perlxv.U): | |
1861 | This variable is the size of an I32 in bytes. | |
1862 | ||
1863 | i32type (perlxv.U): | |
1864 | This variable contains the C type used for Perl's I32. | |
1865 | ||
1866 | i64size (perlxv.U): | |
1867 | This variable is the size of an I64 in bytes. | |
1868 | ||
1869 | i64type (perlxv.U): | |
1870 | This variable contains the C type used for Perl's I64. | |
1871 | ||
1872 | i8size (perlxv.U): | |
1873 | This variable is the size of an I8 in bytes. | |
1874 | ||
1875 | i8type (perlxv.U): | |
1876 | This variable contains the C type used for Perl's I8. | |
1877 | ||
781b178c JH |
1878 | i_arpainet (i_arpainet.U): |
1879 | This variable conditionally defines the I_ARPA_INET symbol, | |
1880 | and indicates whether a C program should include <arpa/inet.h>. | |
1881 | ||
1882 | i_bsdioctl (i_sysioctl.U): | |
1883 | This variable conditionally defines the I_SYS_BSDIOCTL symbol, which | |
1884 | indicates to the C program that <sys/bsdioctl.h> exists and should | |
1885 | be included. | |
1886 | ||
1887 | i_db (i_db.U): | |
1888 | This variable conditionally defines the I_DB symbol, and indicates | |
1889 | whether a C program may include Berkeley's DB include file <db.h>. | |
1890 | ||
1891 | i_dbm (i_dbm.U): | |
1892 | This variable conditionally defines the I_DBM symbol, which | |
1893 | indicates to the C program that <dbm.h> exists and should | |
1894 | be included. | |
1895 | ||
1896 | i_dirent (i_dirent.U): | |
1897 | This variable conditionally defines I_DIRENT, which indicates | |
1898 | to the C program that it should include <dirent.h>. | |
1899 | ||
1900 | i_dld (i_dld.U): | |
1901 | This variable conditionally defines the I_DLD symbol, which | |
1902 | indicates to the C program that <dld.h> (GNU dynamic loading) | |
1903 | exists and should be included. | |
1904 | ||
1905 | i_dlfcn (i_dlfcn.U): | |
1906 | This variable conditionally defines the I_DLFCN symbol, which | |
1907 | indicates to the C program that <dlfcn.h> exists and should | |
1908 | be included. | |
1909 | ||
1910 | i_fcntl (i_fcntl.U): | |
1911 | This variable controls the value of I_FCNTL (which tells | |
1912 | the C program to include <fcntl.h>). | |
1913 | ||
1914 | i_float (i_float.U): | |
1915 | This variable conditionally defines the I_FLOAT symbol, and indicates | |
1916 | whether a C program may include <float.h> to get symbols like DBL_MAX | |
1917 | or DBL_MIN, i.e. machine dependent floating point values. | |
1918 | ||
1919 | i_gdbm (i_gdbm.U): | |
1920 | This variable conditionally defines the I_GDBM symbol, which | |
1921 | indicates to the C program that <gdbm.h> exists and should | |
1922 | be included. | |
1923 | ||
1924 | i_grp (i_grp.U): | |
1925 | This variable conditionally defines the I_GRP symbol, and indicates | |
1926 | whether a C program should include <grp.h>. | |
1927 | ||
fe749a9f JH |
1928 | i_iconv (i_iconv.U): |
1929 | This variable conditionally defines the I_ICONV symbol, and indicates | |
1930 | whether a C program should include <iconv.h>. | |
1931 | ||
792d8dab JH |
1932 | i_ieeefp (i_ieeefp.U): |
1933 | This variable conditionally defines the I_IEEEFP symbol, and indicates | |
1934 | whether a C program should include <ieeefp.h>. | |
1935 | ||
781b178c JH |
1936 | i_inttypes (i_inttypes.U): |
1937 | This variable conditionally defines the I_INTTYPES symbol, | |
1938 | and indicates whether a C program should include <inttypes.h>. | |
1939 | ||
1940 | i_limits (i_limits.U): | |
1941 | This variable conditionally defines the I_LIMITS symbol, and indicates | |
1942 | whether a C program may include <limits.h> to get symbols like WORD_BIT | |
1943 | and friends. | |
1944 | ||
1945 | i_locale (i_locale.U): | |
1946 | This variable conditionally defines the I_LOCALE symbol, | |
1947 | and indicates whether a C program should include <locale.h>. | |
1948 | ||
1949 | i_machcthr (i_machcthr.U): | |
1950 | This variable conditionally defines the I_MACH_CTHREADS symbol, | |
1951 | and indicates whether a C program should include <mach/cthreads.h>. | |
1952 | ||
1953 | i_malloc (i_malloc.U): | |
1954 | This variable conditionally defines the I_MALLOC symbol, and indicates | |
1955 | whether a C program should include <malloc.h>. | |
1956 | ||
1957 | i_math (i_math.U): | |
1958 | This variable conditionally defines the I_MATH symbol, and indicates | |
1959 | whether a C program may include <math.h>. | |
1960 | ||
1961 | i_memory (i_memory.U): | |
1962 | This variable conditionally defines the I_MEMORY symbol, and indicates | |
1963 | whether a C program should include <memory.h>. | |
1964 | ||
1965 | i_mntent (i_mntent.U): | |
1966 | This variable conditionally defines the I_MNTENT symbol, and indicates | |
1967 | whether a C program should include <mntent.h>. | |
1968 | ||
1969 | i_ndbm (i_ndbm.U): | |
1970 | This variable conditionally defines the I_NDBM symbol, which | |
1971 | indicates to the C program that <ndbm.h> exists and should | |
1972 | be included. | |
1973 | ||
1974 | i_netdb (i_netdb.U): | |
1975 | This variable conditionally defines the I_NETDB symbol, and indicates | |
1976 | whether a C program should include <netdb.h>. | |
1977 | ||
1978 | i_neterrno (i_neterrno.U): | |
1979 | This variable conditionally defines the I_NET_ERRNO symbol, which | |
1980 | indicates to the C program that <net/errno.h> exists and should | |
1981 | be included. | |
1982 | ||
1983 | i_netinettcp (i_netinettcp.U): | |
1984 | This variable conditionally defines the I_NETINET_TCP symbol, | |
1985 | and indicates whether a C program should include <netinet/tcp.h>. | |
1986 | ||
1987 | i_niin (i_niin.U): | |
1988 | This variable conditionally defines I_NETINET_IN, which indicates | |
1989 | to the C program that it should include <netinet/in.h>. Otherwise, | |
1990 | you may try <sys/in.h>. | |
1991 | ||
1992 | i_poll (i_poll.U): | |
1993 | This variable conditionally defines the I_POLL symbol, and indicates | |
1994 | whether a C program should include <poll.h>. | |
1995 | ||
1996 | i_pthread (i_pthread.U): | |
190b66db | 1997 | This variable conditionally defines the I_PTHREAD symbol, |
781b178c JH |
1998 | and indicates whether a C program should include <pthread.h>. |
1999 | ||
2000 | i_pwd (i_pwd.U): | |
2001 | This variable conditionally defines I_PWD, which indicates | |
2002 | to the C program that it should include <pwd.h>. | |
2003 | ||
2004 | i_rpcsvcdbm (i_dbm.U): | |
2005 | This variable conditionally defines the I_RPCSVC_DBM symbol, which | |
2006 | indicates to the C program that <rpcsvc/dbm.h> exists and should | |
2007 | be included. Some System V systems might need this instead of <dbm.h>. | |
2008 | ||
2009 | i_sfio (i_sfio.U): | |
2010 | This variable conditionally defines the I_SFIO symbol, | |
2011 | and indicates whether a C program should include <sfio.h>. | |
2012 | ||
2013 | i_sgtty (i_termio.U): | |
2014 | This variable conditionally defines the I_SGTTY symbol, which | |
2015 | indicates to the C program that it should include <sgtty.h> rather | |
2016 | than <termio.h>. | |
2017 | ||
2018 | i_shadow (i_shadow.U): | |
2019 | This variable conditionally defines the I_SHADOW symbol, and indicates | |
2020 | whether a C program should include <shadow.h>. | |
2021 | ||
2022 | i_socks (i_socks.U): | |
2023 | This variable conditionally defines the I_SOCKS symbol, and indicates | |
2024 | whether a C program should include <socks.h>. | |
2025 | ||
2026 | i_stdarg (i_varhdr.U): | |
2027 | This variable conditionally defines the I_STDARG symbol, which | |
2028 | indicates to the C program that <stdarg.h> exists and should | |
2029 | be included. | |
2030 | ||
2031 | i_stddef (i_stddef.U): | |
2032 | This variable conditionally defines the I_STDDEF symbol, which | |
2033 | indicates to the C program that <stddef.h> exists and should | |
2034 | be included. | |
2035 | ||
2036 | i_stdlib (i_stdlib.U): | |
2037 | This variable conditionally defines the I_STDLIB symbol, which | |
2038 | indicates to the C program that <stdlib.h> exists and should | |
2039 | be included. | |
2040 | ||
2041 | i_string (i_string.U): | |
2042 | This variable conditionally defines the I_STRING symbol, which | |
2043 | indicates that <string.h> should be included rather than <strings.h>. | |
2044 | ||
792d8dab JH |
2045 | i_sunmath (i_sunmath.U): |
2046 | This variable conditionally defines the I_SUNMATH symbol, and indicates | |
2047 | whether a C program should include <sunmath.h>. | |
2048 | ||
781b178c JH |
2049 | i_sysaccess (i_sysaccess.U): |
2050 | This variable conditionally defines the I_SYS_ACCESS symbol, | |
2051 | and indicates whether a C program should include <sys/access.h>. | |
2052 | ||
2053 | i_sysdir (i_sysdir.U): | |
2054 | This variable conditionally defines the I_SYS_DIR symbol, and indicates | |
2055 | whether a C program should include <sys/dir.h>. | |
2056 | ||
2057 | i_sysfile (i_sysfile.U): | |
2058 | This variable conditionally defines the I_SYS_FILE symbol, and indicates | |
2059 | whether a C program should include <sys/file.h> to get R_OK and friends. | |
2060 | ||
2061 | i_sysfilio (i_sysioctl.U): | |
2062 | This variable conditionally defines the I_SYS_FILIO symbol, which | |
2063 | indicates to the C program that <sys/filio.h> exists and should | |
2064 | be included in preference to <sys/ioctl.h>. | |
2065 | ||
2066 | i_sysin (i_niin.U): | |
2067 | This variable conditionally defines I_SYS_IN, which indicates | |
2068 | to the C program that it should include <sys/in.h> instead of | |
2069 | <netinet/in.h>. | |
2070 | ||
2071 | i_sysioctl (i_sysioctl.U): | |
2072 | This variable conditionally defines the I_SYS_IOCTL symbol, which | |
2073 | indicates to the C program that <sys/ioctl.h> exists and should | |
2074 | be included. | |
2075 | ||
ca52efda JH |
2076 | i_syslog (i_syslog.U): |
2077 | This variable conditionally defines the I_SYSLOG symbol, | |
2078 | and indicates whether a C program should include <syslog.h>. | |
2079 | ||
fe749a9f JH |
2080 | i_sysmman (i_sysmman.U): |
2081 | This variable conditionally defines the I_SYS_MMAN symbol, and | |
2082 | indicates whether a C program should include <sys/mman.h>. | |
2083 | ||
87b71857 JH |
2084 | i_sysmode (i_sysmode.U): |
2085 | This variable conditionally defines the I_SYSMODE symbol, | |
2086 | and indicates whether a C program should include <sys/mode.h>. | |
2087 | ||
781b178c JH |
2088 | i_sysmount (i_sysmount.U): |
2089 | This variable conditionally defines the I_SYSMOUNT symbol, | |
2090 | and indicates whether a C program should include <sys/mount.h>. | |
2091 | ||
2092 | i_sysndir (i_sysndir.U): | |
2093 | This variable conditionally defines the I_SYS_NDIR symbol, and indicates | |
2094 | whether a C program should include <sys/ndir.h>. | |
2095 | ||
2096 | i_sysparam (i_sysparam.U): | |
2097 | This variable conditionally defines the I_SYS_PARAM symbol, and indicates | |
2098 | whether a C program should include <sys/param.h>. | |
2099 | ||
2100 | i_sysresrc (i_sysresrc.U): | |
2101 | This variable conditionally defines the I_SYS_RESOURCE symbol, | |
2102 | and indicates whether a C program should include <sys/resource.h>. | |
2103 | ||
2104 | i_syssecrt (i_syssecrt.U): | |
2105 | This variable conditionally defines the I_SYS_SECURITY symbol, | |
2106 | and indicates whether a C program should include <sys/security.h>. | |
2107 | ||
2108 | i_sysselct (i_sysselct.U): | |
2109 | This variable conditionally defines I_SYS_SELECT, which indicates | |
2110 | to the C program that it should include <sys/select.h> in order to | |
2111 | get the definition of struct timeval. | |
2112 | ||
2113 | i_syssockio (i_sysioctl.U): | |
2114 | This variable conditionally defines I_SYS_SOCKIO to indicate to the | |
2115 | C program that socket ioctl codes may be found in <sys/sockio.h> | |
2116 | instead of <sys/ioctl.h>. | |
2117 | ||
2118 | i_sysstat (i_sysstat.U): | |
2119 | This variable conditionally defines the I_SYS_STAT symbol, | |
2120 | and indicates whether a C program should include <sys/stat.h>. | |
2121 | ||
0545a864 JH |
2122 | i_sysstatfs (i_sysstatfs.U): |
2123 | This variable conditionally defines the I_SYSSTATFS symbol, | |
2124 | and indicates whether a C program should include <sys/statfs.h>. | |
2125 | ||
781b178c JH |
2126 | i_sysstatvfs (i_sysstatvfs.U): |
2127 | This variable conditionally defines the I_SYSSTATVFS symbol, | |
2128 | and indicates whether a C program should include <sys/statvfs.h>. | |
2129 | ||
2130 | i_systime (i_time.U): | |
2131 | This variable conditionally defines I_SYS_TIME, which indicates | |
2132 | to the C program that it should include <sys/time.h>. | |
2133 | ||
2134 | i_systimek (i_time.U): | |
2135 | This variable conditionally defines I_SYS_TIME_KERNEL, which | |
2136 | indicates to the C program that it should include <sys/time.h> | |
2137 | with KERNEL defined. | |
2138 | ||
2139 | i_systimes (i_systimes.U): | |
2140 | This variable conditionally defines the I_SYS_TIMES symbol, and indicates | |
2141 | whether a C program should include <sys/times.h>. | |
2142 | ||
2143 | i_systypes (i_systypes.U): | |
2144 | This variable conditionally defines the I_SYS_TYPES symbol, | |
2145 | and indicates whether a C program should include <sys/types.h>. | |
2146 | ||
2147 | i_sysuio (i_sysuio.U): | |
2148 | This variable conditionally defines the I_SYSUIO symbol, and indicates | |
2149 | whether a C program should include <sys/uio.h>. | |
2150 | ||
2151 | i_sysun (i_sysun.U): | |
2152 | This variable conditionally defines I_SYS_UN, which indicates | |
2153 | to the C program that it should include <sys/un.h> to get UNIX | |
2154 | domain socket definitions. | |
2155 | ||
d4935d7f JH |
2156 | i_sysutsname (i_sysutsname.U): |
2157 | This variable conditionally defines the I_SYSUTSNAME symbol, | |
2158 | and indicates whether a C program should include <sys/utsname.h>. | |
2159 | ||
0545a864 JH |
2160 | i_sysvfs (i_sysvfs.U): |
2161 | This variable conditionally defines the I_SYSVFS symbol, | |
2162 | and indicates whether a C program should include <sys/vfs.h>. | |
2163 | ||
781b178c JH |
2164 | i_syswait (i_syswait.U): |
2165 | This variable conditionally defines I_SYS_WAIT, which indicates | |
2166 | to the C program that it should include <sys/wait.h>. | |
2167 | ||
2168 | i_termio (i_termio.U): | |
2169 | This variable conditionally defines the I_TERMIO symbol, which | |
2170 | indicates to the C program that it should include <termio.h> rather | |
2171 | than <sgtty.h>. | |
2172 | ||
2173 | i_termios (i_termio.U): | |
2174 | This variable conditionally defines the I_TERMIOS symbol, which | |
2175 | indicates to the C program that the POSIX <termios.h> file is | |
2176 | to be included. | |
2177 | ||
2178 | i_time (i_time.U): | |
2179 | This variable conditionally defines I_TIME, which indicates | |
2180 | to the C program that it should include <time.h>. | |
2181 | ||
2182 | i_unistd (i_unistd.U): | |
2183 | This variable conditionally defines the I_UNISTD symbol, and indicates | |
2184 | whether a C program should include <unistd.h>. | |
2185 | ||
0545a864 JH |
2186 | i_ustat (i_ustat.U): |
2187 | This variable conditionally defines the I_USTAT symbol, and indicates | |
2188 | whether a C program should include <ustat.h>. | |
2189 | ||
781b178c JH |
2190 | i_utime (i_utime.U): |
2191 | This variable conditionally defines the I_UTIME symbol, and indicates | |
2192 | whether a C program should include <utime.h>. | |
2193 | ||
2194 | i_values (i_values.U): | |
2195 | This variable conditionally defines the I_VALUES symbol, and indicates | |
2196 | whether a C program may include <values.h> to get symbols like MAXLONG | |
2197 | and friends. | |
2198 | ||
2199 | i_varargs (i_varhdr.U): | |
2200 | This variable conditionally defines I_VARARGS, which indicates | |
2201 | to the C program that it should include <varargs.h>. | |
2202 | ||
2203 | i_varhdr (i_varhdr.U): | |
2204 | Contains the name of the header to be included to get va_dcl definition. | |
2205 | Typically one of varargs.h or stdarg.h. | |
2206 | ||
2207 | i_vfork (i_vfork.U): | |
2208 | This variable conditionally defines the I_VFORK symbol, and indicates | |
2209 | whether a C program should include vfork.h. | |
2210 | ||
2211 | ignore_versioned_solibs (libs.U): | |
2212 | This variable should be non-empty if non-versioned shared | |
2213 | libraries (libfoo.so.x.y) are to be ignored (because they | |
2214 | cannot be linked against). | |
2215 | ||
ff935051 JH |
2216 | inc_version_list (inc_version_list.U): |
2217 | This variable specifies the list of subdirectories in over | |
2218 | which perl.c:incpush() and lib/lib.pm will automatically | |
3a096bf3 JH |
2219 | search when adding directories to @INC. The elements in |
2220 | the list are separated by spaces. This is only useful | |
ff935051 JH |
2221 | if you have a perl library directory tree structured like the |
2222 | default one. See INSTALL for how this works. The versioned | |
2223 | site_perl directory was introduced in 5.005, so that is the | |
2224 | lowest possible value. | |
2225 | ||
3a096bf3 JH |
2226 | inc_version_list_init (inc_version_list.U): |
2227 | This variable holds the same list as inc_version_list, but | |
2228 | each item is enclosed in double quotes and separated by commas, | |
2229 | suitable for use in the PERL_INC_VERSION_LIST initialization. | |
2230 | ||
781b178c JH |
2231 | incpath (usrinc.U): |
2232 | This variable must preceed the normal include path to get hte | |
2233 | right one, as in "$incpath/usr/include" or "$incpath/usr/lib". | |
2234 | Value can be "" or "/bsd43" on mips. | |
2235 | ||
2236 | inews (Loc.U): | |
2237 | This variable is defined but not used by Configure. | |
2238 | The value is a plain '' and is not useful. | |
2239 | ||
2240 | installarchlib (archlib.U): | |
2241 | This variable is really the same as archlibexp but may differ on | |
2242 | those systems using AFS. For extra portability, only this variable | |
2243 | should be used in makefiles. | |
2244 | ||
2245 | installbin (bin.U): | |
2246 | This variable is the same as binexp unless AFS is running in which case | |
2247 | the user is explicitely prompted for it. This variable should always | |
2248 | be used in your makefiles for maximum portability. | |
2249 | ||
2250 | installman1dir (man1dir.U): | |
2251 | This variable is really the same as man1direxp, unless you are using | |
2252 | AFS in which case it points to the read/write location whereas | |
2253 | man1direxp only points to the read-only access location. For extra | |
2254 | portability, you should only use this variable within your makefiles. | |
2255 | ||
2256 | installman3dir (man3dir.U): | |
2257 | This variable is really the same as man3direxp, unless you are using | |
2258 | AFS in which case it points to the read/write location whereas | |
2259 | man3direxp only points to the read-only access location. For extra | |
2260 | portability, you should only use this variable within your makefiles. | |
2261 | ||
2262 | installprefix (installprefix.U): | |
2263 | This variable holds the name of the directory below which | |
2264 | "make install" will install the package. For most users, this | |
2265 | is the same as prefix. However, it is useful for | |
2266 | installing the software into a different (usually temporary) | |
2267 | location after which it can be bundled up and moved somehow | |
2268 | to the final location specified by prefix. | |
2269 | ||
2270 | installprefixexp (installprefix.U): | |
2271 | This variable holds the full absolute path of installprefix | |
2272 | with all ~-expansion done. | |
2273 | ||
2274 | installprivlib (privlib.U): | |
2275 | This variable is really the same as privlibexp but may differ on | |
2276 | those systems using AFS. For extra portability, only this variable | |
2277 | should be used in makefiles. | |
2278 | ||
2279 | installscript (scriptdir.U): | |
2280 | This variable is usually the same as scriptdirexp, unless you are on | |
2281 | a system running AFS, in which case they may differ slightly. You | |
2282 | should always use this variable within your makefiles for portability. | |
2283 | ||
2284 | installsitearch (sitearch.U): | |
2285 | This variable is really the same as sitearchexp but may differ on | |
2286 | those systems using AFS. For extra portability, only this variable | |
2287 | should be used in makefiles. | |
2288 | ||
0617aed7 JH |
2289 | installsitebin (sitebin.U): |
2290 | This variable is usually the same as sitebinexp, unless you are on | |
2291 | a system running AFS, in which case they may differ slightly. You | |
2292 | should always use this variable within your makefiles for portability. | |
2293 | ||
781b178c JH |
2294 | installsitelib (sitelib.U): |
2295 | This variable is really the same as sitelibexp but may differ on | |
2296 | those systems using AFS. For extra portability, only this variable | |
2297 | should be used in makefiles. | |
2298 | ||
2299 | installstyle (installstyle.U): | |
2300 | This variable describes the "style" of the perl installation. | |
2301 | This is intended to be useful for tools that need to | |
2302 | manipulate entire perl distributions. Perl itself doesn't use | |
2303 | this to find its libraries -- the library directories are | |
2304 | stored directly in Config.pm. Currently, there are only two | |
2305 | styles: "lib" and "lib/perl5". The default library locations | |
2306 | (e.g. privlib, sitelib) are either $prefix/lib or | |
2307 | $prefix/lib/perl5. The former is useful if $prefix is a | |
2308 | directory dedicated to perl (e.g. /opt/perl), while the latter | |
2309 | is useful if $prefix is shared by many packages, e.g. if | |
2310 | $prefix=/usr/local. | |
2311 | This may later be extended to include other information, so | |
2312 | be careful with pattern-matching on the results. | |
2313 | For compatibility with perl5.005 and earlier, the default | |
2314 | setting is based on whether or not $prefix contains the string | |
2315 | "perl". | |
2316 | ||
2317 | installusrbinperl (instubperl.U): | |
2318 | This variable tells whether Perl should be installed also as | |
2319 | /usr/bin/perl in addition to | |
2320 | $installbin/perl | |
2321 | ||
65f19062 GS |
2322 | installvendorarch (vendorarch.U): |
2323 | This variable is really the same as vendorarchexp but may differ on | |
2324 | those systems using AFS. For extra portability, only this variable | |
2325 | should be used in makefiles. | |
2326 | ||
0617aed7 JH |
2327 | installvendorbin (vendorbin.U): |
2328 | This variable is really the same as vendorbinexp but may differ on | |
2329 | those systems using AFS. For extra portability, only this variable | |
2330 | should be used in makefiles. | |
2331 | ||
a3635516 JH |
2332 | installvendorlib (vendorlib.U): |
2333 | This variable is really the same as vendorlibexp but may differ on | |
2334 | those systems using AFS. For extra portability, only this variable | |
2335 | should be used in makefiles. | |
2336 | ||
781b178c JH |
2337 | intsize (intsize.U): |
2338 | This variable contains the value of the INTSIZE symbol, which | |
2339 | indicates to the C program how many bytes there are in an int. | |
2340 | ||
a22e52b9 JH |
2341 | ivdformat (perlxvf.U): |
2342 | This variable contains the format string used for printing | |
2343 | a Perl IV as a signed decimal integer. | |
2344 | ||
2345 | ivsize (perlxv.U): | |
2346 | This variable is the size of an IV in bytes. | |
2347 | ||
2348 | ivtype (perlxv.U): | |
2349 | This variable contains the C type used for Perl's IV. | |
2350 | ||
781b178c JH |
2351 | known_extensions (Extensions.U): |
2352 | This variable holds a list of all XS extensions included in | |
2353 | the package. | |
2354 | ||
2355 | ksh (Loc.U): | |
2356 | This variable is defined but not used by Configure. | |
2357 | The value is a plain '' and is not useful. | |
2358 | ||
2359 | large (models.U): | |
2360 | This variable contains a flag which will tell the C compiler and loader | |
2361 | to produce a program running with a large memory model. It is up to | |
2362 | the Makefile to use this. | |
2363 | ||
2364 | ld (dlsrc.U): | |
2365 | This variable indicates the program to be used to link | |
2366 | libraries for dynamic loading. On some systems, it is 'ld'. | |
2367 | On ELF systems, it should be $cc. Mostly, we'll try to respect | |
2368 | the hint file setting. | |
2369 | ||
2370 | lddlflags (dlsrc.U): | |
2371 | This variable contains any special flags that might need to be | |
2372 | passed to $ld to create a shared library suitable for dynamic | |
2373 | loading. It is up to the makefile to use it. For hpux, it | |
2374 | should be '-b'. For sunos 4.1, it is empty. | |
2375 | ||
2376 | ldflags (ccflags.U): | |
2377 | This variable contains any additional C loader flags desired by | |
2378 | the user. It is up to the Makefile to use this. | |
2379 | ||
2380 | ldlibpthname (libperl.U): | |
2381 | This variable holds the name of the shared library | |
2382 | search path, often LD_LIBRARY_PATH. To get an empty | |
2383 | string, the hints file must set this to 'none'. | |
2384 | ||
2385 | less (Loc.U): | |
5bf26616 | 2386 | This variable is used internally by Configure to determine the |
781b178c JH |
2387 | full pathname (if any) of the less program. After Configure runs, |
2388 | the value is reset to a plain "less" and is not useful. | |
2389 | ||
2390 | lib_ext (Unix.U): | |
2391 | This is an old synonym for _a. | |
2392 | ||
2393 | libc (libc.U): | |
2394 | This variable contains the location of the C library. | |
2395 | ||
2396 | libperl (libperl.U): | |
2397 | The perl executable is obtained by linking perlmain.c with | |
2398 | libperl, any static extensions (usually just DynaLoader), | |
2399 | and any other libraries needed on this system. libperl | |
2400 | is usually libperl.a, but can also be libperl.so.xxx if | |
2401 | the user wishes to build a perl executable with a shared | |
2402 | library. | |
2403 | ||
2404 | libpth (libpth.U): | |
2405 | This variable holds the general path (space-separated) used to find | |
2406 | libraries. It is intended to be used by other units. | |
2407 | ||
2408 | libs (libs.U): | |
2409 | This variable holds the additional libraries we want to use. | |
2410 | It is up to the Makefile to deal with it. | |
2411 | ||
fe749a9f JH |
2412 | libsdirs (libs.U): |
2413 | This variable holds the directory names aka dirnames of the libraries | |
2414 | we found and accepted, duplicates are removed. | |
2415 | ||
2416 | libsfiles (libs.U): | |
2417 | This variable holds the filenames aka basenames of the libraries | |
2418 | we found and accepted. | |
2419 | ||
2420 | libsfound (libs.U): | |
2421 | This variable holds the full pathnames of the libraries | |
2422 | we found and accepted. | |
2423 | ||
13b3f787 JH |
2424 | libspath (libs.U): |
2425 | This variable holds the directory names probed for libraries. | |
2426 | ||
781b178c JH |
2427 | libswanted (Myinit.U): |
2428 | This variable holds a list of all the libraries we want to | |
2429 | search. The order is chosen to pick up the c library | |
2430 | ahead of ucb or bsd libraries for SVR4. | |
2431 | ||
2432 | line (Loc.U): | |
ff935051 JH |
2433 | This variable is defined but not used by Configure. |
2434 | The value is a plain '' and is not useful. | |
781b178c JH |
2435 | |
2436 | lint (Loc.U): | |
2437 | This variable is defined but not used by Configure. | |
2438 | The value is a plain '' and is not useful. | |
2439 | ||
2440 | lkflags (ccflags.U): | |
2441 | This variable contains any additional C partial linker flags desired by | |
2442 | the user. It is up to the Makefile to use this. | |
2443 | ||
2444 | ln (Loc.U): | |
5bf26616 | 2445 | This variable is used internally by Configure to determine the |
781b178c JH |
2446 | full pathname (if any) of the ln program. After Configure runs, |
2447 | the value is reset to a plain "ln" and is not useful. | |
2448 | ||
2449 | lns (lns.U): | |
2450 | This variable holds the name of the command to make | |
2451 | symbolic links (if they are supported). It can be used | |
2452 | in the Makefile. It is either 'ln -s' or 'ln' | |
2453 | ||
2454 | locincpth (ccflags.U): | |
2455 | This variable contains a list of additional directories to be | |
2456 | searched by the compiler. The appropriate '-I' directives will | |
2457 | be added to ccflags. This is intended to simplify setting | |
2458 | local directories from the Configure command line. | |
2459 | It's not much, but it parallels the loclibpth stuff in libpth.U. | |
2460 | ||
2461 | loclibpth (libpth.U): | |
2462 | This variable holds the paths (space-separated) used to find local | |
2463 | libraries. It is prepended to libpth, and is intended to be easily | |
2464 | set from the command line. | |
2465 | ||
2466 | longdblsize (d_longdbl.U): | |
2467 | This variable contains the value of the LONG_DOUBLESIZE symbol, which | |
2468 | indicates to the C program how many bytes there are in a long double, | |
2469 | if this system supports long doubles. | |
2470 | ||
2471 | longlongsize (d_longlong.U): | |
2472 | This variable contains the value of the LONGLONGSIZE symbol, which | |
2473 | indicates to the C program how many bytes there are in a long long, | |
2474 | if this system supports long long. | |
2475 | ||
2476 | longsize (intsize.U): | |
2477 | This variable contains the value of the LONGSIZE symbol, which | |
2478 | indicates to the C program how many bytes there are in a long. | |
2479 | ||
2480 | lp (Loc.U): | |
2481 | This variable is defined but not used by Configure. | |
2482 | The value is a plain '' and is not useful. | |
2483 | ||
2484 | lpr (Loc.U): | |
2485 | This variable is defined but not used by Configure. | |
2486 | The value is a plain '' and is not useful. | |
2487 | ||
2488 | ls (Loc.U): | |
5bf26616 | 2489 | This variable is used internally by Configure to determine the |
781b178c JH |
2490 | full pathname (if any) of the ls program. After Configure runs, |
2491 | the value is reset to a plain "ls" and is not useful. | |
2492 | ||
2493 | lseeksize (lseektype.U): | |
2494 | This variable defines lseektype to be something like off_t, long, | |
2495 | or whatever type is used to declare lseek offset's type in the | |
2496 | kernel (which also appears to be lseek's return type). | |
2497 | ||
2498 | lseektype (lseektype.U): | |
2499 | This variable defines lseektype to be something like off_t, long, | |
2500 | or whatever type is used to declare lseek offset's type in the | |
2501 | kernel (which also appears to be lseek's return type). | |
2502 | ||
2503 | mail (Loc.U): | |
2504 | This variable is defined but not used by Configure. | |
2505 | The value is a plain '' and is not useful. | |
2506 | ||
2507 | mailx (Loc.U): | |
2508 | This variable is defined but not used by Configure. | |
2509 | The value is a plain '' and is not useful. | |
2510 | ||
2511 | make (Loc.U): | |
5bf26616 | 2512 | This variable is used internally by Configure to determine the |
781b178c JH |
2513 | full pathname (if any) of the make program. After Configure runs, |
2514 | the value is reset to a plain "make" and is not useful. | |
2515 | ||
2516 | make_set_make (make.U): | |
2517 | Some versions of 'make' set the variable MAKE. Others do not. | |
2518 | This variable contains the string to be included in Makefile.SH | |
2519 | so that MAKE is set if needed, and not if not needed. | |
2520 | Possible values are: | |
2521 | make_set_make='#' # If your make program handles this for you, | |
2522 | make_set_make="MAKE=$make" # if it doesn't. | |
2523 | I used a comment character so that we can distinguish a | |
2524 | 'set' value (from a previous config.sh or Configure '-D' option) | |
2525 | from an uncomputed value. | |
2526 | ||
2527 | mallocobj (mallocsrc.U): | |
2528 | This variable contains the name of the malloc.o that this package | |
2529 | generates, if that malloc.o is preferred over the system malloc. | |
2530 | Otherwise the value is null. This variable is intended for generating | |
2531 | Makefiles. See mallocsrc. | |
2532 | ||
2533 | mallocsrc (mallocsrc.U): | |
2534 | This variable contains the name of the malloc.c that comes with | |
2535 | the package, if that malloc.c is preferred over the system malloc. | |
2536 | Otherwise the value is null. This variable is intended for generating | |
2537 | Makefiles. | |
2538 | ||
2539 | malloctype (mallocsrc.U): | |
2540 | This variable contains the kind of ptr returned by malloc and realloc. | |
2541 | ||
2542 | man1dir (man1dir.U): | |
2543 | This variable contains the name of the directory in which manual | |
2544 | source pages are to be put. It is the responsibility of the | |
2545 | Makefile.SH to get the value of this into the proper command. | |
2546 | You must be prepared to do the ~name expansion yourself. | |
2547 | ||
2548 | man1direxp (man1dir.U): | |
2549 | This variable is the same as the man1dir variable, but is filename | |
2550 | expanded at configuration time, for convenient use in makefiles. | |
2551 | ||
2552 | man1ext (man1dir.U): | |
2553 | This variable contains the extension that the manual page should | |
2554 | have: one of 'n', 'l', or '1'. The Makefile must supply the '.'. | |
2555 | See man1dir. | |
2556 | ||
2557 | man3dir (man3dir.U): | |
2558 | This variable contains the name of the directory in which manual | |
2559 | source pages are to be put. It is the responsibility of the | |
2560 | Makefile.SH to get the value of this into the proper command. | |
2561 | You must be prepared to do the ~name expansion yourself. | |
2562 | ||
2563 | man3direxp (man3dir.U): | |
2564 | This variable is the same as the man3dir variable, but is filename | |
2565 | expanded at configuration time, for convenient use in makefiles. | |
2566 | ||
2567 | man3ext (man3dir.U): | |
2568 | This variable contains the extension that the manual page should | |
2569 | have: one of 'n', 'l', or '3'. The Makefile must supply the '.'. | |
2570 | See man3dir. | |
2571 | ||
ff935051 JH |
2572 | Mcc (Loc.U): |
2573 | This variable is used internally by Configure to determine the | |
2574 | full pathname (if any) of the Mcc program. After Configure runs, | |
2575 | the value is reset to a plain "Mcc" and is not useful. | |
2576 | ||
781b178c JH |
2577 | medium (models.U): |
2578 | This variable contains a flag which will tell the C compiler and loader | |
2579 | to produce a program running with a medium memory model. If the | |
2580 | medium model is not supported, contains the flag to produce large | |
2581 | model programs. It is up to the Makefile to use this. | |
2582 | ||
2583 | mips_type (usrinc.U): | |
2584 | This variable holds the environment type for the mips system. | |
2585 | Possible values are "BSD 4.3" and "System V". | |
2586 | ||
2587 | mkdir (Loc.U): | |
5bf26616 | 2588 | This variable is used internally by Configure to determine the |
781b178c JH |
2589 | full pathname (if any) of the mkdir program. After Configure runs, |
2590 | the value is reset to a plain "mkdir" and is not useful. | |
2591 | ||
fe749a9f JH |
2592 | mmaptype (d_mmap.U): |
2593 | This symbol contains the type of pointer returned by mmap() | |
2594 | (and simultaneously the type of the first argument). | |
2595 | It can be 'void *' or 'caddr_t'. | |
2596 | ||
781b178c JH |
2597 | models (models.U): |
2598 | This variable contains the list of memory models supported by this | |
2599 | system. Possible component values are none, split, unsplit, small, | |
2600 | medium, large, and huge. The component values are space separated. | |
2601 | ||
2602 | modetype (modetype.U): | |
2603 | This variable defines modetype to be something like mode_t, | |
2604 | int, unsigned short, or whatever type is used to declare file | |
2605 | modes for system calls. | |
2606 | ||
2607 | more (Loc.U): | |
5bf26616 | 2608 | This variable is used internally by Configure to determine the |
781b178c JH |
2609 | full pathname (if any) of the more program. After Configure runs, |
2610 | the value is reset to a plain "more" and is not useful. | |
2611 | ||
2612 | multiarch (multiarch.U): | |
2613 | This variable conditionally defines the MULTIARCH symbol | |
2614 | which signifies the presence of multiplatform files. | |
2615 | This is normally set by hints files. | |
2616 | ||
2617 | mv (Loc.U): | |
2618 | This variable is defined but not used by Configure. | |
2619 | The value is a plain '' and is not useful. | |
2620 | ||
2621 | myarchname (archname.U): | |
2622 | This variable holds the architecture name computed by Configure in | |
2623 | a previous run. It is not intended to be perused by any user and | |
2624 | should never be set in a hint file. | |
2625 | ||
2626 | mydomain (myhostname.U): | |
2627 | This variable contains the eventual value of the MYDOMAIN symbol, | |
2628 | which is the domain of the host the program is going to run on. | |
2629 | The domain must be appended to myhostname to form a complete host name. | |
2630 | The dot comes with mydomain, and need not be supplied by the program. | |
2631 | ||
2632 | myhostname (myhostname.U): | |
2633 | This variable contains the eventual value of the MYHOSTNAME symbol, | |
2634 | which is the name of the host the program is going to run on. | |
2635 | The domain is not kept with hostname, but must be gotten from mydomain. | |
2636 | The dot comes with mydomain, and need not be supplied by the program. | |
2637 | ||
2638 | myuname (Oldconfig.U): | |
2639 | The output of 'uname -a' if available, otherwise the hostname. On Xenix, | |
2640 | pseudo variables assignments in the output are stripped, thank you. The | |
2641 | whole thing is then lower-cased. | |
2642 | ||
2643 | n (n.U): | |
2644 | This variable contains the '-n' flag if that is what causes the echo | |
2645 | command to suppress newline. Otherwise it is null. Correct usage is | |
2646 | $echo $n "prompt for a question: $c". | |
2647 | ||
2648 | netdb_hlen_type (netdbtype.U): | |
2649 | This variable holds the type used for the 2nd argument to | |
2650 | gethostbyaddr(). Usually, this is int or size_t or unsigned. | |
2651 | This is only useful if you have gethostbyaddr(), naturally. | |
2652 | ||
2653 | netdb_host_type (netdbtype.U): | |
2654 | This variable holds the type used for the 1st argument to | |
2655 | gethostbyaddr(). Usually, this is char * or void *, possibly | |
2656 | with or without a const prefix. | |
2657 | This is only useful if you have gethostbyaddr(), naturally. | |
2658 | ||
2659 | netdb_name_type (netdbtype.U): | |
2660 | This variable holds the type used for the argument to | |
2661 | gethostbyname(). Usually, this is char * or const char *. | |
2662 | This is only useful if you have gethostbyname(), naturally. | |
2663 | ||
2664 | netdb_net_type (netdbtype.U): | |
2665 | This variable holds the type used for the 1st argument to | |
2666 | getnetbyaddr(). Usually, this is int or long. | |
2667 | This is only useful if you have getnetbyaddr(), naturally. | |
2668 | ||
2669 | nm (Loc.U): | |
5bf26616 | 2670 | This variable is used internally by Configure to determine the |
781b178c JH |
2671 | full pathname (if any) of the nm program. After Configure runs, |
2672 | the value is reset to a plain "nm" and is not useful. | |
2673 | ||
2674 | nm_opt (usenm.U): | |
2675 | This variable holds the options that may be necessary for nm. | |
2676 | ||
2677 | nm_so_opt (usenm.U): | |
2678 | This variable holds the options that may be necessary for nm | |
2679 | to work on a shared library but that can not be used on an | |
2680 | archive library. Currently, this is only used by Linux, where | |
2681 | nm --dynamic is *required* to get symbols from an ELF library which | |
2682 | has been stripped, but nm --dynamic is *fatal* on an archive library. | |
2683 | Maybe Linux should just always set usenm=false. | |
2684 | ||
2685 | nonxs_ext (Extensions.U): | |
2686 | This variable holds a list of all non-xs extensions included | |
2687 | in the package. All of them will be built. | |
2688 | ||
2689 | nroff (Loc.U): | |
5bf26616 | 2690 | This variable is used internally by Configure to determine the |
781b178c JH |
2691 | full pathname (if any) of the nroff program. After Configure runs, |
2692 | the value is reset to a plain "nroff" and is not useful. | |
2693 | ||
a22e52b9 JH |
2694 | nvsize (perlxv.U): |
2695 | This variable is the size of an NV in bytes. | |
2696 | ||
2697 | nvtype (perlxv.U): | |
2698 | This variable contains the C type used for Perl's NV. | |
2699 | ||
781b178c JH |
2700 | o_nonblock (nblock_io.U): |
2701 | This variable bears the symbol value to be used during open() or fcntl() | |
2702 | to turn on non-blocking I/O for a file descriptor. If you wish to switch | |
2703 | between blocking and non-blocking, you may try ioctl(FIOSNBIO) instead, | |
2704 | but that is only supported by some devices. | |
2705 | ||
2706 | obj_ext (Unix.U): | |
2707 | This is an old synonym for _o. | |
2708 | ||
2709 | old_pthread_create_joinable (d_pthrattrj.U): | |
2710 | This variable defines the constant to use for creating joinable | |
2711 | (aka undetached) pthreads. Unused if pthread.h defines | |
2712 | PTHREAD_CREATE_JOINABLE. If used, possible values are | |
2713 | PTHREAD_CREATE_UNDETACHED and __UNDETACHED. | |
2714 | ||
2715 | optimize (ccflags.U): | |
2716 | This variable contains any optimizer/debugger flag that should be used. | |
2717 | It is up to the Makefile to use it. | |
2718 | ||
2719 | orderlib (orderlib.U): | |
2720 | This variable is "true" if the components of libraries must be ordered | |
2721 | (with `lorder $* | tsort`) before placing them in an archive. Set to | |
2722 | "false" if ranlib or ar can generate random libraries. | |
2723 | ||
2724 | osname (Oldconfig.U): | |
2725 | This variable contains the operating system name (e.g. sunos, | |
2726 | solaris, hpux, etc.). It can be useful later on for setting | |
2727 | defaults. Any spaces are replaced with underscores. It is set | |
2728 | to a null string if we can't figure it out. | |
2729 | ||
2730 | osvers (Oldconfig.U): | |
2731 | This variable contains the operating system version (e.g. | |
2732 | 4.1.3, 5.2, etc.). It is primarily used for helping select | |
2733 | an appropriate hints file, but might be useful elsewhere for | |
2734 | setting defaults. It is set to '' if we can't figure it out. | |
2735 | We try to be flexible about how much of the version number | |
2736 | to keep, e.g. if 4.1.1, 4.1.2, and 4.1.3 are essentially the | |
2737 | same for this package, hints files might just be os_4.0 or | |
2738 | os_4.1, etc., not keeping separate files for each little release. | |
2739 | ||
2740 | package (package.U): | |
2741 | This variable contains the name of the package being constructed. | |
2742 | It is primarily intended for the use of later Configure units. | |
2743 | ||
2744 | pager (pager.U): | |
2745 | This variable contains the name of the preferred pager on the system. | |
2746 | Usual values are (the full pathnames of) more, less, pg, or cat. | |
2747 | ||
2748 | passcat (nis.U): | |
2749 | This variable contains a command that produces the text of the | |
2750 | /etc/passwd file. This is normally "cat /etc/passwd", but can be | |
2751 | "ypcat passwd" when NIS is used. | |
aaacdc8b GS |
2752 | On some systems, such as os390, there may be no equivalent |
2753 | command, in which case this variable is unset. | |
781b178c JH |
2754 | |
2755 | patchlevel (patchlevel.U): | |
2756 | The patchlevel level of this package. | |
2757 | The value of patchlevel comes from the patchlevel.h file. | |
ff935051 | 2758 | In a version number such as 5.6.1, this is the "6". |
c890dc6c | 2759 | In patchlevel.h, this is referred to as "PERL_VERSION". |
781b178c JH |
2760 | |
2761 | path_sep (Unix.U): | |
2762 | This is an old synonym for p_ in Head.U, the character | |
2763 | used to separate elements in the command shell search PATH. | |
2764 | ||
c890dc6c JH |
2765 | perl5 (perl5.U): |
2766 | This variable contains the full path (if any) to a previously | |
2767 | installed perl5.005 or later suitable for running the script | |
2768 | to determine inc_version_list. | |
2769 | ||
781b178c | 2770 | perl (Loc.U): |
c890dc6c JH |
2771 | This variable is defined but not used by Configure. |
2772 | The value is a plain '' and is not useful. | |
781b178c | 2773 | |
ff935051 JH |
2774 | PERL_REVISION (Oldsyms.U): |
2775 | In a Perl version number such as 5.6.2, this is the 5. | |
2776 | This value is manually set in patchlevel.h | |
2777 | ||
2778 | PERL_SUBVERSION (Oldsyms.U): | |
2779 | In a Perl version number such as 5.6.2, this is the 2. | |
2780 | Values greater than 50 represent potentially unstable | |
2781 | development subversions. | |
2782 | This value is manually set in patchlevel.h | |
2783 | ||
2784 | PERL_VERSION (Oldsyms.U): | |
2785 | In a Perl version number such as 5.6.2, this is the 6. | |
2786 | This value is manually set in patchlevel.h | |
2787 | ||
781b178c JH |
2788 | perladmin (perladmin.U): |
2789 | Electronic mail address of the perl5 administrator. | |
2790 | ||
2791 | perlpath (perlpath.U): | |
2792 | This variable contains the eventual value of the PERLPATH symbol, | |
2793 | which contains the name of the perl interpreter to be used in | |
2794 | shell scripts and in the "eval 'exec'" idiom. | |
2795 | ||
2796 | pg (Loc.U): | |
5bf26616 | 2797 | This variable is used internally by Configure to determine the |
781b178c JH |
2798 | full pathname (if any) of the pg program. After Configure runs, |
2799 | the value is reset to a plain "pg" and is not useful. | |
2800 | ||
2801 | phostname (myhostname.U): | |
2802 | This variable contains the eventual value of the PHOSTNAME symbol, | |
2803 | which is a command that can be fed to popen() to get the host name. | |
2804 | The program should probably not presume that the domain is or isn't | |
2805 | there already. | |
2806 | ||
2807 | pidtype (pidtype.U): | |
2808 | This variable defines PIDTYPE to be something like pid_t, int, | |
2809 | ushort, or whatever type is used to declare process ids in the kernel. | |
2810 | ||
2811 | plibpth (libpth.U): | |
2812 | Holds the private path used by Configure to find out the libraries. | |
2813 | Its value is prepend to libpth. This variable takes care of special | |
2814 | machines, like the mips. Usually, it should be empty. | |
2815 | ||
fe749a9f JH |
2816 | pm_apiversion (xs_apiversion.U): |
2817 | This variable contains the version of the oldest perl | |
2818 | compatible with the present perl. (That is, pure perl modules | |
2819 | written for $pm_apiversion will still work for the current | |
2820 | version). perl.c:incpush() and lib/lib.pm will automatically | |
2821 | search in $sitelib for older directories across major versions | |
2822 | back to pm_apiversion. This is only useful if you have a perl | |
2823 | library directory tree structured like the default one. The | |
2824 | versioned site_perl library was introduced in 5.005, so that's | |
2825 | the default setting for this variable. It's hard to imagine | |
2826 | it changing before Perl6. It is included here for symmetry | |
2827 | with xs_apiveprsion -- the searching algorithms will | |
2828 | (presumably) be similar. | |
2829 | See the INSTALL file for how this works. | |
2830 | ||
781b178c JH |
2831 | pmake (Loc.U): |
2832 | This variable is defined but not used by Configure. | |
2833 | The value is a plain '' and is not useful. | |
2834 | ||
2835 | pr (Loc.U): | |
2836 | This variable is defined but not used by Configure. | |
2837 | The value is a plain '' and is not useful. | |
2838 | ||
2839 | prefix (prefix.U): | |
2840 | This variable holds the name of the directory below which the | |
2841 | user will install the package. Usually, this is /usr/local, and | |
2842 | executables go in /usr/local/bin, library stuff in /usr/local/lib, | |
2843 | man pages in /usr/local/man, etc. It is only used to set defaults | |
2844 | for things in bin.U, mansrc.U, privlib.U, or scriptdir.U. | |
2845 | ||
2846 | prefixexp (prefix.U): | |
2847 | This variable holds the full absolute path of the directory below | |
2848 | which the user will install the package. Derived from prefix. | |
2849 | ||
2850 | privlib (privlib.U): | |
2851 | This variable contains the eventual value of the PRIVLIB symbol, | |
2852 | which is the name of the private library for this package. It may | |
2853 | have a ~ on the front. It is up to the makefile to eventually create | |
2854 | this directory while performing installation (with ~ substitution). | |
2855 | ||
2856 | privlibexp (privlib.U): | |
2857 | This variable is the ~name expanded version of privlib, so that you | |
2858 | may use it directly in Makefiles or shell scripts. | |
2859 | ||
2860 | prototype (prototype.U): | |
2861 | This variable holds the eventual value of CAN_PROTOTYPE, which | |
2862 | indicates the C compiler can handle funciton prototypes. | |
2863 | ||
2864 | ptrsize (ptrsize.U): | |
2865 | This variable contains the value of the PTRSIZE symbol, which | |
2866 | indicates to the C program how many bytes there are in a pointer. | |
2867 | ||
e0a10278 | 2868 | quadkind (quadtype.U): |
0befd8de JH |
2869 | This variable, if defined, encodes the type of a quad: |
2870 | 1 = int, 2 = long, 3 = long long, 4 = int64_t. | |
2871 | ||
2872 | quadtype (quadtype.U): | |
2873 | This variable defines Quad_t to be something like long, int, | |
2874 | long long, int64_t, or whatever type is used for 64-bit integers. | |
2875 | ||
781b178c JH |
2876 | randbits (randfunc.U): |
2877 | Indicates how many bits are produced by the function used to | |
2878 | generate normalized random numbers. | |
2879 | ||
2880 | randfunc (randfunc.U): | |
2881 | Indicates the name of the random number function to use. | |
2882 | Values include drand48, random, and rand. In C programs, | |
2883 | the 'Drand01' macro is defined to generate uniformly distributed | |
2884 | random numbers over the range [0., 1.[ (see drand01 and nrand). | |
2885 | ||
2886 | randseedtype (randfunc.U): | |
2887 | Indicates the type of the argument of the seedfunc. | |
2888 | ||
2889 | ranlib (orderlib.U): | |
2890 | This variable is set to the pathname of the ranlib program, if it is | |
2891 | needed to generate random libraries. Set to ":" if ar can generate | |
2892 | random libraries or if random libraries are not supported | |
2893 | ||
2894 | rd_nodata (nblock_io.U): | |
2895 | This variable holds the return code from read() when no data is | |
2896 | present. It should be -1, but some systems return 0 when O_NDELAY is | |
2897 | used, which is a shame because you cannot make the difference between | |
2898 | no data and an EOF.. Sigh! | |
2899 | ||
c890dc6c JH |
2900 | revision (patchlevel.U): |
2901 | The value of revision comes from the patchlevel.h file. | |
2902 | In a version number such as 5.6.1, this is the "5". | |
2903 | In patchlevel.h, this is referred to as "PERL_REVISION". | |
2904 | ||
781b178c | 2905 | rm (Loc.U): |
5bf26616 | 2906 | This variable is used internally by Configure to determine the |
781b178c JH |
2907 | full pathname (if any) of the rm program. After Configure runs, |
2908 | the value is reset to a plain "rm" and is not useful. | |
2909 | ||
2910 | rmail (Loc.U): | |
2911 | This variable is defined but not used by Configure. | |
2912 | The value is a plain '' and is not useful. | |
2913 | ||
2914 | runnm (usenm.U): | |
2915 | This variable contains 'true' or 'false' depending whether the | |
2916 | nm extraction should be performed or not, according to the value | |
2917 | of usenm and the flags on the Configure command line. | |
2918 | ||
2919 | sched_yield (d_pthread_y.U): | |
2920 | This variable defines the way to yield the execution | |
2921 | of the current thread. | |
2922 | ||
2923 | scriptdir (scriptdir.U): | |
2924 | This variable holds the name of the directory in which the user wants | |
2925 | to put publicly scripts for the package in question. It is either | |
2926 | the same directory as for binaries, or a special one that can be | |
2927 | mounted across different architectures, like /usr/share. Programs | |
2928 | must be prepared to deal with ~name expansion. | |
2929 | ||
2930 | scriptdirexp (scriptdir.U): | |
2931 | This variable is the same as scriptdir, but is filename expanded | |
2932 | at configuration time, for programs not wanting to bother with it. | |
2933 | ||
2934 | sed (Loc.U): | |
5bf26616 | 2935 | This variable is used internally by Configure to determine the |
781b178c JH |
2936 | full pathname (if any) of the sed program. After Configure runs, |
2937 | the value is reset to a plain "sed" and is not useful. | |
2938 | ||
2939 | seedfunc (randfunc.U): | |
2940 | Indicates the random number generating seed function. | |
2941 | Values include srand48, srandom, and srand. | |
2942 | ||
2943 | selectminbits (selectminbits.U): | |
2944 | This variable holds the minimum number of bits operated by select. | |
2945 | That is, if you do select(n, ...), how many bits at least will be | |
2946 | cleared in the masks if some activity is detected. Usually this | |
2947 | is either n or 32*ceil(n/32), especially many little-endians do | |
2948 | the latter. This is only useful if you have select(), naturally. | |
2949 | ||
2950 | selecttype (selecttype.U): | |
2951 | This variable holds the type used for the 2nd, 3rd, and 4th | |
2952 | arguments to select. Usually, this is 'fd_set *', if HAS_FD_SET | |
2953 | is defined, and 'int *' otherwise. This is only useful if you | |
2954 | have select(), naturally. | |
2955 | ||
2956 | sendmail (Loc.U): | |
ff935051 JH |
2957 | This variable is defined but not used by Configure. |
2958 | The value is a plain '' and is not useful. | |
781b178c JH |
2959 | |
2960 | sh (sh.U): | |
2961 | This variable contains the full pathname of the shell used | |
2962 | on this system to execute Bourne shell scripts. Usually, this will be | |
2963 | /bin/sh, though it's possible that some systems will have /bin/ksh, | |
2964 | /bin/pdksh, /bin/ash, /bin/bash, or even something such as | |
2965 | D:/bin/sh.exe. | |
2966 | This unit comes before Options.U, so you can't set sh with a '-D' | |
2967 | option, though you can override this (and startsh) | |
2968 | with '-O -Dsh=/bin/whatever -Dstartsh=whatever' | |
2969 | ||
2970 | shar (Loc.U): | |
2971 | This variable is defined but not used by Configure. | |
2972 | The value is a plain '' and is not useful. | |
2973 | ||
2974 | sharpbang (spitshell.U): | |
2975 | This variable contains the string #! if this system supports that | |
2976 | construct. | |
2977 | ||
2978 | shmattype (d_shmat.U): | |
2979 | This symbol contains the type of pointer returned by shmat(). | |
2980 | It can be 'void *' or 'char *'. | |
2981 | ||
2982 | shortsize (intsize.U): | |
2983 | This variable contains the value of the SHORTSIZE symbol which | |
2984 | indicates to the C program how many bytes there are in a short. | |
2985 | ||
2986 | shrpenv (libperl.U): | |
2987 | If the user builds a shared libperl.so, then we need to tell the | |
2988 | 'perl' executable where it will be able to find the installed libperl.so. | |
2989 | One way to do this on some systems is to set the environment variable | |
2990 | LD_RUN_PATH to the directory that will be the final location of the | |
2991 | shared libperl.so. The makefile can use this with something like | |
2992 | $shrpenv $(CC) -o perl perlmain.o $libperl $libs | |
2993 | Typical values are | |
2994 | shrpenv="env LD_RUN_PATH=$archlibexp/CORE" | |
2995 | or | |
2996 | shrpenv='' | |
2997 | See the main perl Makefile.SH for actual working usage. | |
2998 | Alternatively, we might be able to use a command line option such | |
2999 | as -R $archlibexp/CORE (Solaris, NetBSD) or -Wl,-rpath | |
3000 | $archlibexp/CORE (Linux). | |
3001 | ||
3002 | shsharp (spitshell.U): | |
3003 | This variable tells further Configure units whether your sh can | |
3004 | handle # comments. | |
3005 | ||
3006 | sig_count (sig_name.U): | |
3007 | This variable holds a number larger than the largest valid | |
3008 | signal number. This is usually the same as the NSIG macro. | |
3009 | ||
3010 | sig_name (sig_name.U): | |
3011 | This variable holds the signal names, space separated. The leading | |
3012 | SIG in signal name is removed. A ZERO is prepended to the | |
3013 | list. This is currently not used. | |
3014 | ||
3015 | sig_name_init (sig_name.U): | |
3016 | This variable holds the signal names, enclosed in double quotes and | |
3017 | separated by commas, suitable for use in the SIG_NAME definition | |
3018 | below. A "ZERO" is prepended to the list, and the list is | |
3019 | terminated with a plain 0. The leading SIG in signal names | |
3020 | is removed. See sig_num. | |
3021 | ||
3022 | sig_num (sig_name.U): | |
3023 | This variable holds the signal numbers, space separated. A ZERO is | |
3024 | prepended to the list (corresponding to the fake SIGZERO), and | |
3025 | the list is terminated with a 0. Those numbers correspond to | |
3026 | the value of the signal listed in the same place within the | |
3027 | sig_name list. | |
3028 | ||
3029 | sig_num_init (sig_name.U): | |
3030 | This variable holds the signal numbers, enclosed in double quotes and | |
3031 | separated by commas, suitable for use in the SIG_NUM definition | |
3032 | below. A "ZERO" is prepended to the list, and the list is | |
3033 | terminated with a plain 0. | |
3034 | ||
3035 | signal_t (d_voidsig.U): | |
3036 | This variable holds the type of the signal handler (void or int). | |
3037 | ||
3038 | sitearch (sitearch.U): | |
3039 | This variable contains the eventual value of the SITEARCH symbol, | |
3040 | which is the name of the private library for this package. It may | |
3041 | have a ~ on the front. It is up to the makefile to eventually create | |
3042 | this directory while performing installation (with ~ substitution). | |
f868067f JH |
3043 | The standard distribution will put nothing in this directory. |
3044 | After perl has been installed, users may install their own local | |
3045 | architecture-dependent modules in this directory with | |
3046 | MakeMaker Makefile.PL | |
3047 | or equivalent. See INSTALL for details. | |
781b178c JH |
3048 | |
3049 | sitearchexp (sitearch.U): | |
3050 | This variable is the ~name expanded version of sitearch, so that you | |
3051 | may use it directly in Makefiles or shell scripts. | |
3052 | ||
0617aed7 JH |
3053 | sitebin (sitebin.U): |
3054 | This variable holds the name of the directory in which the user wants | |
3055 | to put add-on publicly executable files for the package in question. It | |
3056 | is most often a local directory such as /usr/local/bin. Programs using | |
3057 | this variable must be prepared to deal with ~name substitution. | |
f868067f JH |
3058 | The standard distribution will put nothing in this directory. |
3059 | After perl has been installed, users may install their own local | |
3060 | executables in this directory with | |
3061 | MakeMaker Makefile.PL | |
3062 | or equivalent. See INSTALL for details. | |
0617aed7 JH |
3063 | |
3064 | sitebinexp (sitebin.U): | |
3065 | This is the same as the sitebin variable, but is filename expanded at | |
3066 | configuration time, for use in your makefiles. | |
3067 | ||
781b178c JH |
3068 | sitelib (sitelib.U): |
3069 | This variable contains the eventual value of the SITELIB symbol, | |
3070 | which is the name of the private library for this package. It may | |
3071 | have a ~ on the front. It is up to the makefile to eventually create | |
3072 | this directory while performing installation (with ~ substitution). | |
f868067f JH |
3073 | The standard distribution will put nothing in this directory. |
3074 | After perl has been installed, users may install their own local | |
3075 | architecture-independent modules in this directory with | |
3076 | MakeMaker Makefile.PL | |
3077 | or equivalent. See INSTALL for details. | |
781b178c | 3078 | |
65f19062 GS |
3079 | sitelib_stem (sitelib.U): |
3080 | This variable is $sitelibexp with any trailing version-specific component | |
3081 | removed. The elements in inc_version_list (inc_version_list.U) can | |
3082 | be tacked onto this variable to generate a list of directories to search. | |
3083 | ||
781b178c JH |
3084 | sitelibexp (sitelib.U): |
3085 | This variable is the ~name expanded version of sitelib, so that you | |
3086 | may use it directly in Makefiles or shell scripts. | |
3087 | ||
3088 | siteprefix (siteprefix.U): | |
3089 | This variable holds the full absolute path of the directory below | |
3090 | which the user will install add-on packages. | |
f868067f | 3091 | See INSTALL for usage and examples. |
781b178c JH |
3092 | |
3093 | siteprefixexp (siteprefix.U): | |
3094 | This variable holds the full absolute path of the directory below | |
3095 | which the user will install add-on packages. Derived from siteprefix. | |
3096 | ||
3097 | sizetype (sizetype.U): | |
3098 | This variable defines sizetype to be something like size_t, | |
3099 | unsigned long, or whatever type is used to declare length | |
3100 | parameters for string functions. | |
3101 | ||
3102 | sleep (Loc.U): | |
3103 | This variable is defined but not used by Configure. | |
3104 | The value is a plain '' and is not useful. | |
3105 | ||
3106 | smail (Loc.U): | |
3107 | This variable is defined but not used by Configure. | |
3108 | The value is a plain '' and is not useful. | |
3109 | ||
3110 | small (models.U): | |
3111 | This variable contains a flag which will tell the C compiler and loader | |
3112 | to produce a program running with a small memory model. It is up to | |
3113 | the Makefile to use this. | |
3114 | ||
3115 | so (so.U): | |
3116 | This variable holds the extension used to identify shared libraries | |
3117 | (also known as shared objects) on the system. Usually set to 'so'. | |
3118 | ||
3119 | sockethdr (d_socket.U): | |
3120 | This variable has any cpp '-I' flags needed for socket support. | |
3121 | ||
3122 | socketlib (d_socket.U): | |
3123 | This variable has the names of any libraries needed for socket support. | |
3124 | ||
c890dc6c JH |
3125 | socksizetype (socksizetype.U): |
3126 | This variable holds the type used for the size argument | |
3127 | for various socket calls like accept. Usual values include | |
3128 | socklen_t, size_t, and int. | |
3129 | ||
781b178c | 3130 | sort (Loc.U): |
5bf26616 | 3131 | This variable is used internally by Configure to determine the |
781b178c JH |
3132 | full pathname (if any) of the sort program. After Configure runs, |
3133 | the value is reset to a plain "sort" and is not useful. | |
3134 | ||
3135 | spackage (package.U): | |
3136 | This variable contains the name of the package being constructed, | |
3137 | with the first letter uppercased, i.e. suitable for starting | |
3138 | sentences. | |
3139 | ||
3140 | spitshell (spitshell.U): | |
3141 | This variable contains the command necessary to spit out a runnable | |
3142 | shell on this system. It is either cat or a grep '-v' for # comments. | |
3143 | ||
3144 | split (models.U): | |
3145 | This variable contains a flag which will tell the C compiler and loader | |
3146 | to produce a program that will run in separate I and D space, for those | |
3147 | machines that support separation of instruction and data space. It is | |
3148 | up to the Makefile to use this. | |
3149 | ||
ff935051 JH |
3150 | sPRId64 (quadfio.U): |
3151 | This variable, if defined, contains the string used by stdio to | |
3152 | format 64-bit decimal numbers (format 'd') for output. | |
3153 | ||
3154 | sPRIeldbl (longdblfio.U): | |
3155 | This variable, if defined, contains the string used by stdio to | |
3156 | format long doubles (format 'e') for output. | |
3157 | ||
3158 | sPRIEldbl (longdblfio.U): | |
3159 | This variable, if defined, contains the string used by stdio to | |
3160 | format long doubles (format 'E') for output. | |
3161 | ||
3162 | sPRIfldbl (longdblfio.U): | |
3163 | This variable, if defined, contains the string used by stdio to | |
3164 | format long doubles (format 'f') for output. | |
3165 | ||
3166 | sPRIFldbl (longdblfio.U): | |
3167 | This variable, if defined, contains the string used by stdio to | |
3168 | format long doubles (format 'F') for output. | |
3169 | ||
3170 | sPRIgldbl (longdblfio.U): | |
3171 | This variable, if defined, contains the string used by stdio to | |
3172 | format long doubles (format 'g') for output. | |
3173 | ||
3174 | sPRIGldbl (longdblfio.U): | |
3175 | This variable, if defined, contains the string used by stdio to | |
3176 | format long doubles (format 'G') for output. | |
3177 | ||
3178 | sPRIi64 (quadfio.U): | |
3179 | This variable, if defined, contains the string used by stdio to | |
3180 | format 64-bit decimal numbers (format 'i') for output. | |
3181 | ||
3182 | sPRIo64 (quadfio.U): | |
3183 | This variable, if defined, contains the string used by stdio to | |
3184 | format 64-bit octal numbers (format 'o') for output. | |
3185 | ||
3186 | sPRIu64 (quadfio.U): | |
3187 | This variable, if defined, contains the string used by stdio to | |
3188 | format 64-bit unsigned decimal numbers (format 'u') for output. | |
3189 | ||
3190 | sPRIx64 (quadfio.U): | |
3191 | This variable, if defined, contains the string used by stdio to | |
3192 | format 64-bit hexadecimal numbers (format 'x') for output. | |
3193 | ||
3194 | sPRIX64 (quadfio.U): | |
3195 | This variable, if defined, contains the string used by stdio to | |
3196 | format 64-bit hExADECimAl numbers (format 'X') for output. | |
3197 | ||
781b178c JH |
3198 | src (src.U): |
3199 | This variable holds the path to the package source. It is up to | |
3200 | the Makefile to use this variable and set VPATH accordingly to | |
3201 | find the sources remotely. | |
3202 | ||
3203 | ssizetype (ssizetype.U): | |
3204 | This variable defines ssizetype to be something like ssize_t, | |
3205 | long or int. It is used by functions that return a count | |
3206 | of bytes or an error condition. It must be a signed type. | |
3207 | We will pick a type such that sizeof(SSize_t) == sizeof(Size_t). | |
3208 | ||
3209 | startperl (startperl.U): | |
3210 | This variable contains the string to put on the front of a perl | |
3211 | script to make sure (hopefully) that it runs with perl and not some | |
3212 | shell. Of course, that leading line must be followed by the classical | |
3213 | perl idiom: | |
3214 | eval 'exec perl -S $0 ${1+"$@"}' | |
3215 | if $running_under_some_shell; | |
3216 | to guarantee perl startup should the shell execute the script. Note | |
3217 | that this magic incatation is not understood by csh. | |
3218 | ||
3219 | startsh (startsh.U): | |
3220 | This variable contains the string to put on the front of a shell | |
3221 | script to make sure (hopefully) that it runs with sh and not some | |
3222 | other shell. | |
3223 | ||
3224 | static_ext (Extensions.U): | |
3225 | This variable holds a list of XS extension files we want to | |
3226 | link statically into the package. It is used by Makefile. | |
3227 | ||
3228 | stdchar (stdchar.U): | |
3229 | This variable conditionally defines STDCHAR to be the type of char | |
3230 | used in stdio.h. It has the values "unsigned char" or "char". | |
3231 | ||
3232 | stdio_base (d_stdstdio.U): | |
3233 | This variable defines how, given a FILE pointer, fp, to access the | |
3234 | _base field (or equivalent) of stdio.h's FILE structure. This will | |
3235 | be used to define the macro FILE_base(fp). | |
3236 | ||
3237 | stdio_bufsiz (d_stdstdio.U): | |
3238 | This variable defines how, given a FILE pointer, fp, to determine | |
3239 | the number of bytes store in the I/O buffer pointer to by the | |
3240 | _base field (or equivalent) of stdio.h's FILE structure. This will | |
3241 | be used to define the macro FILE_bufsiz(fp). | |
3242 | ||
3243 | stdio_cnt (d_stdstdio.U): | |
3244 | This variable defines how, given a FILE pointer, fp, to access the | |
3245 | _cnt field (or equivalent) of stdio.h's FILE structure. This will | |
3246 | be used to define the macro FILE_cnt(fp). | |
3247 | ||
3248 | stdio_filbuf (d_stdstdio.U): | |
3249 | This variable defines how, given a FILE pointer, fp, to tell | |
3250 | stdio to refill it's internal buffers (?). This will | |
3251 | be used to define the macro FILE_filbuf(fp). | |
3252 | ||
3253 | stdio_ptr (d_stdstdio.U): | |
3254 | This variable defines how, given a FILE pointer, fp, to access the | |
3255 | _ptr field (or equivalent) of stdio.h's FILE structure. This will | |
3256 | be used to define the macro FILE_ptr(fp). | |
3257 | ||
3258 | stdio_stream_array (stdio_streams.U): | |
3259 | This variable tells the name of the array holding the stdio streams. | |
3260 | Usual values include _iob, __iob, and __sF. | |
3261 | ||
3262 | strings (i_string.U): | |
3263 | This variable holds the full path of the string header that will be | |
3264 | used. Typically /usr/include/string.h or /usr/include/strings.h. | |
3265 | ||
3266 | submit (Loc.U): | |
3267 | This variable is defined but not used by Configure. | |
3268 | The value is a plain '' and is not useful. | |
3269 | ||
3270 | subversion (patchlevel.U): | |
3271 | The subversion level of this package. | |
3272 | The value of subversion comes from the patchlevel.h file. | |
ff935051 | 3273 | In a version number such as 5.6.1, this is the "1". |
c890dc6c | 3274 | In patchlevel.h, this is referred to as "PERL_SUBVERSION". |
781b178c JH |
3275 | This is unique to perl. |
3276 | ||
3277 | sysman (sysman.U): | |
3278 | This variable holds the place where the manual is located on this | |
3279 | system. It is not the place where the user wants to put his manual | |
3280 | pages. Rather it is the place where Configure may look to find manual | |
3281 | for unix commands (section 1 of the manual usually). See mansrc. | |
3282 | ||
3283 | tail (Loc.U): | |
3284 | This variable is defined but not used by Configure. | |
3285 | The value is a plain '' and is not useful. | |
3286 | ||
3287 | tar (Loc.U): | |
3288 | This variable is defined but not used by Configure. | |
3289 | The value is a plain '' and is not useful. | |
3290 | ||
3291 | tbl (Loc.U): | |
3292 | This variable is defined but not used by Configure. | |
3293 | The value is a plain '' and is not useful. | |
3294 | ||
3295 | tee (Loc.U): | |
3296 | This variable is defined but not used by Configure. | |
3297 | The value is a plain '' and is not useful. | |
3298 | ||
3299 | test (Loc.U): | |
5bf26616 | 3300 | This variable is used internally by Configure to determine the |
781b178c JH |
3301 | full pathname (if any) of the test program. After Configure runs, |
3302 | the value is reset to a plain "test" and is not useful. | |
3303 | ||
3304 | timeincl (i_time.U): | |
3305 | This variable holds the full path of the included time header(s). | |
3306 | ||
3307 | timetype (d_time.U): | |
3308 | This variable holds the type returned by time(). It can be long, | |
3309 | or time_t on BSD sites (in which case <sys/types.h> should be | |
3310 | included). Anyway, the type Time_t should be used. | |
3311 | ||
3312 | touch (Loc.U): | |
5bf26616 | 3313 | This variable is used internally by Configure to determine the |
781b178c JH |
3314 | full pathname (if any) of the touch program. After Configure runs, |
3315 | the value is reset to a plain "touch" and is not useful. | |
3316 | ||
3317 | tr (Loc.U): | |
5bf26616 | 3318 | This variable is used internally by Configure to determine the |
781b178c JH |
3319 | full pathname (if any) of the tr program. After Configure runs, |
3320 | the value is reset to a plain "tr" and is not useful. | |
3321 | ||
3322 | trnl (trnl.U): | |
3323 | This variable contains the value to be passed to the tr(1) | |
3324 | command to transliterate a newline. Typical values are | |
3325 | '\012' and '\n'. This is needed for EBCDIC systems where | |
3326 | newline is not necessarily '\012'. | |
3327 | ||
3328 | troff (Loc.U): | |
3329 | This variable is defined but not used by Configure. | |
3330 | The value is a plain '' and is not useful. | |
3331 | ||
a22e52b9 JH |
3332 | u16size (perlxv.U): |
3333 | This variable is the size of an U16 in bytes. | |
3334 | ||
3335 | u16type (perlxv.U): | |
3336 | This variable contains the C type used for Perl's U16. | |
3337 | ||
3338 | u32size (perlxv.U): | |
3339 | This variable is the size of an U32 in bytes. | |
3340 | ||
3341 | u32type (perlxv.U): | |
3342 | This variable contains the C type used for Perl's U32. | |
3343 | ||
3344 | u64size (perlxv.U): | |
3345 | This variable is the size of an U64 in bytes. | |
3346 | ||
3347 | u64type (perlxv.U): | |
3348 | This variable contains the C type used for Perl's U64. | |
3349 | ||
3350 | u8size (perlxv.U): | |
3351 | This variable is the size of an U8 in bytes. | |
3352 | ||
3353 | u8type (perlxv.U): | |
3354 | This variable contains the C type used for Perl's U8. | |
3355 | ||
3356 | uidformat (uidf.U): | |
3357 | This variable contains the format string used for printing a Uid_t. | |
3358 | ||
2d228ff3 JH |
3359 | uidsign (uidsign.U): |
3360 | This variable contains the signedness of a uidtype. | |
3361 | 1 for unsigned, -1 for signed. | |
3362 | ||
785fb66b JH |
3363 | uidsize (uidsize.U): |
3364 | This variable contains the size of a uidtype in bytes. | |
3365 | ||
781b178c JH |
3366 | uidtype (uidtype.U): |
3367 | This variable defines Uid_t to be something like uid_t, int, | |
3368 | ushort, or whatever type is used to declare user ids in the kernel. | |
3369 | ||
3370 | uname (Loc.U): | |
5bf26616 | 3371 | This variable is used internally by Configure to determine the |
781b178c JH |
3372 | full pathname (if any) of the uname program. After Configure runs, |
3373 | the value is reset to a plain "uname" and is not useful. | |
3374 | ||
3375 | uniq (Loc.U): | |
5bf26616 | 3376 | This variable is used internally by Configure to determine the |
781b178c JH |
3377 | full pathname (if any) of the uniq program. After Configure runs, |
3378 | the value is reset to a plain "uniq" and is not useful. | |
3379 | ||
0befd8de JH |
3380 | uquadtype (quadtype.U): |
3381 | This variable defines Uquad_t to be something like unsigned long, | |
3382 | unsigned int, unsigned long long, uint64_t, or whatever type is | |
3383 | used for 64-bit integers. | |
3384 | ||
aaacdc8b GS |
3385 | use5005threads (usethreads.U): |
3386 | This variable conditionally defines the USE_5005THREADS symbol, | |
3387 | and indicates that Perl should be built to use the 5.005-based | |
3388 | threading implementation. | |
3389 | ||
10cc9d2a JH |
3390 | use64bitall (use64bits.U): |
3391 | This variable conditionally defines the USE_64_BIT_ALL symbol, | |
3392 | and indicates that 64-bit integer types should be used | |
3393 | when available. The maximal possible | |
3394 | 64-bitness is employed: LP64 or ILP64, meaning that you will | |
3395 | be able to use more than 2 gigabytes of memory. This mode is | |
3396 | even more binary incompatible than USE_64_BIT_INT. You may not | |
3397 | be able to run the resulting executable in a 32-bit CPU at all or | |
3398 | you may need at least to reboot your OS to 64-bit mode. | |
3399 | ||
3400 | use64bitint (use64bits.U): | |
3401 | This variable conditionally defines the USE_64_BIT_INT symbol, | |
aaacdc8b | 3402 | and indicates that 64-bit integer types should be used |
c890dc6c JH |
3403 | when available. The minimal possible 64-bitness |
3404 | is employed, just enough to get 64-bit integers into Perl. | |
3405 | This may mean using for example "long longs", while your memory | |
3406 | may still be limited to 2 gigabytes. | |
781b178c JH |
3407 | |
3408 | usedl (dlsrc.U): | |
ff935051 | 3409 | This variable indicates if the system supports dynamic |
781b178c JH |
3410 | loading of some sort. See also dlsrc and dlobj. |
3411 | ||
aaacdc8b GS |
3412 | useithreads (usethreads.U): |
3413 | This variable conditionally defines the USE_ITHREADS symbol, | |
3414 | and indicates that Perl should be built to use the interpreter-based | |
3415 | threading implementation. | |
3416 | ||
5bf26616 | 3417 | uselargefiles (uselfs.U): |
1baac590 JH |
3418 | This variable conditionally defines the USE_LARGE_FILES symbol, |
3419 | and indicates that large file interfaces should be used when | |
c890dc6c | 3420 | available. |
1baac590 | 3421 | |
ca24dfc6 LV |
3422 | uselongdouble (uselongdbl.U): |
3423 | This variable conditionally defines the USE_LONG_DOUBLE symbol, | |
3424 | and indicates that long doubles should be used when available. | |
3425 | ||
1baac590 JH |
3426 | usemorebits (usemorebits.U): |
3427 | This variable conditionally defines the USE_MORE_BITS symbol, | |
3428 | and indicates that explicit 64-bit interfaces and long doubles | |
3429 | should be used when available. | |
3430 | ||
781b178c JH |
3431 | usemultiplicity (usemultiplicity.U): |
3432 | This variable conditionally defines the MULTIPLICITY symbol, | |
3433 | and indicates that Perl should be built to use multiplicity. | |
3434 | ||
3435 | usemymalloc (mallocsrc.U): | |
3436 | This variable contains y if the malloc that comes with this package | |
3437 | is desired over the system's version of malloc. People often include | |
3438 | special versions of malloc for effiency, but such versions are often | |
3439 | less portable. See also mallocsrc and mallocobj. | |
3440 | If this is 'y', then -lmalloc is removed from $libs. | |
3441 | ||
3442 | usenm (usenm.U): | |
3443 | This variable contains 'true' or 'false' depending whether the | |
3444 | nm extraction is wanted or not. | |
3445 | ||
3446 | useopcode (Extensions.U): | |
3447 | This variable holds either 'true' or 'false' to indicate | |
3448 | whether the Opcode extension should be used. The sole | |
3449 | use for this currently is to allow an easy mechanism | |
3450 | for users to skip the Opcode extension from the Configure | |
3451 | command line. | |
3452 | ||
3453 | useperlio (useperlio.U): | |
3454 | This variable conditionally defines the USE_PERLIO symbol, | |
3455 | and indicates that the PerlIO abstraction should be | |
3456 | used throughout. | |
3457 | ||
3458 | useposix (Extensions.U): | |
3459 | This variable holds either 'true' or 'false' to indicate | |
3460 | whether the POSIX extension should be used. The sole | |
3461 | use for this currently is to allow an easy mechanism | |
3462 | for hints files to indicate that POSIX will not compile | |
3463 | on a particular system. | |
3464 | ||
3465 | usesfio (d_sfio.U): | |
3466 | This variable is set to true when the user agrees to use sfio. | |
3467 | It is set to false when sfio is not available or when the user | |
3468 | explicitely requests not to use sfio. It is here primarily so | |
3469 | that command-line settings can override the auto-detection of | |
3470 | d_sfio without running into a "WHOA THERE". | |
3471 | ||
3472 | useshrplib (libperl.U): | |
3473 | This variable is set to 'yes' if the user wishes | |
3474 | to build a shared libperl, and 'no' otherwise. | |
3475 | ||
3476 | usesocks (usesocks.U): | |
3477 | This variable conditionally defines the USE_SOCKS symbol, | |
3478 | and indicates that Perl should be built to use SOCKS. | |
3479 | ||
3480 | usethreads (usethreads.U): | |
3481 | This variable conditionally defines the USE_THREADS symbol, | |
3482 | and indicates that Perl should be built to use threads. | |
3483 | ||
9f50e519 NA |
3484 | usevendorprefix (vendorprefix.U): |
3485 | This variable tells whether the vendorprefix | |
3486 | and consequently other vendor* paths are in use. | |
3487 | ||
781b178c JH |
3488 | usevfork (d_vfork.U): |
3489 | This variable is set to true when the user accepts to use vfork. | |
3490 | It is set to false when no vfork is available or when the user | |
3491 | explicitely requests not to use vfork. | |
3492 | ||
3493 | usrinc (usrinc.U): | |
3494 | This variable holds the path of the include files, which is | |
3495 | usually /usr/include. It is mainly used by other Configure units. | |
3496 | ||
3497 | uuname (Loc.U): | |
3498 | This variable is defined but not used by Configure. | |
3499 | The value is a plain '' and is not useful. | |
3500 | ||
a22e52b9 JH |
3501 | uvoformat (perlxvf.U): |
3502 | This variable contains the format string used for printing | |
3503 | a Perl UV as an unsigned octal integer. | |
3504 | ||
3505 | uvsize (perlxv.U): | |
3506 | This variable is the size of a UV in bytes. | |
3507 | ||
3508 | uvtype (perlxv.U): | |
3509 | This variable contains the C type used for Perl's UV. | |
3510 | ||
3511 | uvuformat (perlxvf.U): | |
3512 | This variable contains the format string used for printing | |
3513 | a Perl UV as an unsigned decimal integer. | |
3514 | ||
3515 | uvxformat (perlxvf.U): | |
3516 | This variable contains the format string used for printing | |
3517 | a Perl UV as an unsigned hexadecimal integer. | |
3518 | ||
65f19062 GS |
3519 | vendorarch (vendorarch.U): |
3520 | This variable contains the value of the PERL_VENDORARCH symbol. | |
3521 | It may have a ~ on the front. | |
3522 | The standard distribution will put nothing in this directory. | |
3523 | Vendors who distribute perl may wish to place their own | |
3524 | architecture-dependent modules and extensions in this directory with | |
3525 | MakeMaker Makefile.PL INSTALLDIRS=vendor | |
3526 | or equivalent. See INSTALL for details. | |
3527 | ||
3528 | vendorarchexp (vendorarch.U): | |
3529 | This variable is the ~name expanded version of vendorarch, so that you | |
3530 | may use it directly in Makefiles or shell scripts. | |
3531 | ||
0617aed7 | 3532 | vendorbin (vendorbin.U): |
f868067f JH |
3533 | This variable contains the eventual value of the VENDORBIN symbol. |
3534 | It may have a ~ on the front. | |
3535 | The standard distribution will put nothing in this directory. | |
3536 | Vendors who distribute perl may wish to place additional | |
3537 | binaries in this directory with | |
3538 | MakeMaker Makefile.PL INSTALLDIRS=vendor | |
3539 | or equivalent. See INSTALL for details. | |
0617aed7 JH |
3540 | |
3541 | vendorbinexp (vendorbin.U): | |
3542 | This variable is the ~name expanded version of vendorbin, so that you | |
3543 | may use it directly in Makefiles or shell scripts. | |
3544 | ||
a3635516 JH |
3545 | vendorlib (vendorlib.U): |
3546 | This variable contains the eventual value of the VENDORLIB symbol, | |
f868067f JH |
3547 | which is the name of the private library for this package. |
3548 | The standard distribution will put nothing in this directory. | |
3549 | Vendors who distribute perl may wish to place their own | |
3550 | modules in this directory with | |
3551 | MakeMaker Makefile.PL INSTALLDIRS=vendor | |
3552 | or equivalent. See INSTALL for details. | |
a3635516 | 3553 | |
65f19062 GS |
3554 | vendorlib_stem (vendorlib.U): |
3555 | This variable is $vendorlibexp with any trailing version-specific component | |
3556 | removed. The elements in inc_version_list (inc_version_list.U) can | |
3557 | be tacked onto this variable to generate a list of directories to search. | |
3558 | ||
a3635516 JH |
3559 | vendorlibexp (vendorlib.U): |
3560 | This variable is the ~name expanded version of vendorlib, so that you | |
3561 | may use it directly in Makefiles or shell scripts. | |
3562 | ||
3563 | vendorprefix (vendorprefix.U): | |
3564 | This variable holds the full absolute path of the directory below | |
3565 | which the vendor will install add-on packages. | |
f868067f | 3566 | See INSTALL for usage and examples. |
a3635516 JH |
3567 | |
3568 | vendorprefixexp (vendorprefix.U): | |
3569 | This variable holds the full absolute path of the directory below | |
3570 | which the vendor will install add-on packages. Derived from vendorprefix. | |
3571 | ||
781b178c | 3572 | version (patchlevel.U): |
ff935051 | 3573 | The full version number of this package, such as 5.6.1 (or 5_6_1). |
c890dc6c | 3574 | This combines revision, patchlevel, and subversion to get the |
ff935051 JH |
3575 | full version number, including any possible subversions. |
3576 | This is suitable for use as a directory name, and hence is | |
3577 | filesystem dependent. | |
781b178c JH |
3578 | |
3579 | vi (Loc.U): | |
3580 | This variable is defined but not used by Configure. | |
3581 | The value is a plain '' and is not useful. | |
3582 | ||
3583 | voidflags (voidflags.U): | |
3584 | This variable contains the eventual value of the VOIDFLAGS symbol, | |
3585 | which indicates how much support of the void type is given by this | |
3586 | compiler. See VOIDFLAGS for more info. | |
3587 | ||
3588 | xlibpth (libpth.U): | |
3589 | This variable holds extra path (space-separated) used to find | |
3590 | libraries on this platform, for example CPU-specific libraries | |
3591 | (on multi-CPU platforms) may be listed here. | |
3592 | ||
fe749a9f JH |
3593 | xs_apiversion (xs_apiversion.U): |
3594 | This variable contains the version of the oldest perl binary | |
3595 | compatible with the present perl. perl.c:incpush() and | |
3596 | lib/lib.pm will automatically search in $sitearch for older | |
3597 | directories across major versions back to xs_apiversion. | |
3598 | This is only useful if you have a perl library directory tree | |
3599 | structured like the default one. | |
3600 | See INSTALL for how this works. | |
3601 | The versioned site_perl directory was introduced in 5.005, | |
3602 | so that is the lowest possible value. | |
3603 | Since this can depend on compile time options (such as | |
3604 | bincompat) it is set by Configure. Other non-default sources | |
3605 | of potential incompatibility, such as multiplicity, threads, | |
3606 | debugging, 64bits, sfio, etc., are not checked for currently, | |
3607 | though in principle we could go snooping around in old | |
3608 | Config.pm files. | |
3609 | ||
781b178c JH |
3610 | zcat (Loc.U): |
3611 | This variable is defined but not used by Configure. | |
3612 | The value is a plain '' and is not useful. | |
3613 | ||
3614 | zip (Loc.U): | |
5bf26616 | 3615 | This variable is used internally by Configure to determine the |
781b178c JH |
3616 | full pathname (if any) of the zip program. After Configure runs, |
3617 | the value is reset to a plain "zip" and is not useful. | |
3618 |