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 | |
dfe9444c AD |
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 | ||
d7418ba7 | 27 | alignbytes (alignbytes.U): |
28 | This variable holds the number of bytes required to align a | |
29 | double. Usual values are 2, 4 and 8. | |
30 | ||
c4f23d77 AD |
31 | ansi2knr (ansi2knr.U): |
32 | This variable is set if the user needs to run ansi2knr. | |
33 | Currently, this is not supported, so we just abort. | |
34 | ||
dfe9444c AD |
35 | aphostname (d_gethname.U): |
36 | Thie variable contains the command which can be used to compute the | |
37 | host name. The command is fully qualified by its absolute path, to make | |
38 | it safe when used by a process with super-user privileges. | |
d7418ba7 | 39 | |
bfb7748a AD |
40 | apiversion (patchlevel.U): |
41 | This is a number which identifies the lowest version of perl | |
42 | to have an API (for XS extensions) compatible with the present | |
43 | version. For example, for 5.005_01, the apiversion should be | |
44 | 5.005, since 5.005_01 should be binary compatible with 5.005. | |
45 | This should probably be incremented manually somehow, perhaps | |
46 | from patchlevel.h. For now, we'll guess maintenance subversions | |
47 | will retain binary compatibility. | |
48 | ||
3a6175e1 AD |
49 | ar (Loc.U): |
50 | This variable is be used internally by Configure to determine the | |
51 | full pathname (if any) of the ar program. After Configure runs, | |
52 | the value is reset to a plain "ar" and is not useful. | |
53 | ||
d7418ba7 | 54 | archlib (archlib.U): |
55 | This variable holds the name of the directory in which the user wants | |
56 | to put architecture-dependent public library files for $package. | |
57 | It is most often a local directory such as /usr/local/lib. | |
58 | Programs using this variable must be prepared to deal | |
59 | with filename expansion. | |
60 | ||
61 | archlibexp (archlib.U): | |
62 | This variable is the same as the archlib variable, but is | |
63 | filename expanded at configuration time, for convenient use. | |
64 | ||
921b2963 JH |
65 | archname64 (use64bits.U): |
66 | This variable is used for the 64-bitness part of $archname. | |
67 | ||
dfe9444c AD |
68 | archname (archname.U): |
69 | This variable is a short name to characterize the current | |
70 | architecture. It is used mainly to construct the default archlib. | |
71 | ||
d7418ba7 | 72 | archobjs (Unix.U): |
73 | This variable defines any additional objects that must be linked | |
74 | in with the program on this architecture. On unix, it is usually | |
75 | empty. It is typically used to include emulations of unix calls | |
76 | or other facilities. For perl on OS/2, for example, this would | |
77 | include os2/os2.obj. | |
78 | ||
3a6175e1 AD |
79 | awk (Loc.U): |
80 | This variable is be used internally by Configure to determine the | |
81 | full pathname (if any) of the awk program. After Configure runs, | |
82 | the value is reset to a plain "awk" and is not useful. | |
83 | ||
dfe9444c AD |
84 | baserev (baserev.U): |
85 | The base revision level of this package, from the .package file. | |
86 | ||
3a6175e1 AD |
87 | bash (Loc.U): |
88 | This variable is defined but not used by Configure. | |
89 | The value is a plain '' and is not useful. | |
90 | ||
d7418ba7 | 91 | bin (bin.U): |
92 | This variable holds the name of the directory in which the user wants | |
93 | to put publicly executable images for the package in question. It | |
94 | is most often a local directory such as /usr/local/bin. Programs using | |
95 | this variable must be prepared to deal with ~name substitution. | |
96 | ||
dfe9444c AD |
97 | binexp (bin.U): |
98 | This is the same as the bin variable, but is filename expanded at | |
99 | configuration time, for use in your makefiles. | |
100 | ||
3a6175e1 AD |
101 | bison (Loc.U): |
102 | This variable is defined but not used by Configure. | |
103 | The value is a plain '' and is not useful. | |
104 | ||
105 | byacc (Loc.U): | |
106 | This variable is be used internally by Configure to determine the | |
107 | full pathname (if any) of the byacc program. After Configure runs, | |
108 | the value is reset to a plain "byacc" and is not useful. | |
109 | ||
d7418ba7 | 110 | byteorder (byteorder.U): |
111 | This variable holds the byte order. In the following, larger digits | |
112 | indicate more significance. The variable byteorder is either 4321 | |
113 | on a big-endian machine, or 1234 on a little-endian, or 87654321 | |
114 | on a Cray ... or 3412 with weird order ! | |
115 | ||
116 | c (n.U): | |
117 | This variable contains the \c string if that is what causes the echo | |
118 | command to suppress newline. Otherwise it is null. Correct usage is | |
ccc7f9b3 | 119 | $echo $n "prompt for a question: $c". |
d7418ba7 | 120 | |
121 | castflags (d_castneg.U): | |
122 | This variable contains a flag that precise difficulties the | |
123 | compiler has casting odd floating values to unsigned long: | |
ccc7f9b3 KS |
124 | 0 = ok |
125 | 1 = couldn't cast < 0 | |
126 | 2 = couldn't cast >= 0x80000000 | |
127 | 4 = couldn't cast in argument expression list | |
d7418ba7 | 128 | |
3a6175e1 AD |
129 | cat (Loc.U): |
130 | This variable is be used internally by Configure to determine the | |
131 | full pathname (if any) of the cat program. After Configure runs, | |
132 | the value is reset to a plain "cat" and is not useful. | |
133 | ||
d7418ba7 | 134 | cc (cc.U): |
135 | This variable holds the name of a command to execute a C compiler which | |
136 | can resolve multiple global references that happen to have the same | |
fb87c415 | 137 | name. Usual values are 'cc', 'Mcc', 'cc -M', and 'gcc'. |
d7418ba7 | 138 | |
139 | cccdlflags (dlsrc.U): | |
140 | This variable contains any special flags that might need to be | |
fb87c415 | 141 | passed with 'cc -c' to compile modules to be used to create a shared |
3a6175e1 | 142 | library that will be used for dynamic loading. For hpux, this |
d7418ba7 | 143 | should be +z. It is up to the makefile to use it. |
144 | ||
145 | ccdlflags (dlsrc.U): | |
146 | This variable contains any special flags that might need to be | |
3a6175e1 | 147 | passed to cc to link with a shared library for dynamic loading. |
d7418ba7 | 148 | It is up to the makefile to use it. For sunos 4.1, it should |
149 | be empty. | |
150 | ||
151 | ccflags (ccflags.U): | |
152 | This variable contains any additional C compiler flags desired by | |
153 | the user. It is up to the Makefile to use this. | |
154 | ||
732c9516 JH |
155 | ccsymbols (Cppsym.U): |
156 | The variable contains the symbols defined by the C compiler alone. | |
157 | The symbols defined by cpp or by cc when it calls cpp are not in | |
158 | this list, see cppsymbols and cppccsymbols. | |
159 | The list is a space-separated list of symbol=value tokens. | |
160 | ||
d7418ba7 | 161 | cf_by (cf_who.U): |
162 | Login name of the person who ran the Configure script and answered the | |
163 | questions. This is used to tag both config.sh and config_h.SH. | |
164 | ||
dfe9444c AD |
165 | cf_email (cf_email.U): |
166 | Electronic mail address of the person who ran Configure. This can be | |
167 | used by units that require the user's e-mail, like MailList.U. | |
168 | ||
d7418ba7 | 169 | cf_time (cf_who.U): |
170 | Holds the output of the "date" command when the configuration file was | |
171 | produced. This is used to tag both config.sh and config_h.SH. | |
172 | ||
3a6175e1 AD |
173 | chgrp (Loc.U): |
174 | This variable is defined but not used by Configure. | |
175 | The value is a plain '' and is not useful. | |
176 | ||
177 | chmod (Loc.U): | |
178 | This variable is defined but not used by Configure. | |
179 | The value is a plain '' and is not useful. | |
180 | ||
181 | chown (Loc.U): | |
182 | This variable is defined but not used by Configure. | |
183 | The value is a plain '' and is not useful. | |
184 | ||
dfe9444c AD |
185 | clocktype (d_times.U): |
186 | This variable holds the type returned by times(). It can be long, | |
187 | or clock_t on BSD sites (in which case <sys/types.h> should be | |
188 | included). | |
189 | ||
3a6175e1 AD |
190 | comm (Loc.U): |
191 | This variable is be used internally by Configure to determine the | |
192 | full pathname (if any) of the comm program. After Configure runs, | |
193 | the value is reset to a plain "comm" and is not useful. | |
194 | ||
195 | compress (Loc.U): | |
196 | This variable is defined but not used by Configure. | |
197 | The value is a plain '' and is not useful. | |
198 | ||
dfe9444c AD |
199 | contains (contains.U): |
200 | This variable holds the command to do a grep with a proper return | |
201 | status. On most sane systems it is simply "grep". On insane systems | |
202 | it is a grep followed by a cat followed by a test. This variable | |
203 | is primarily for the use of other Configure units. | |
204 | ||
3a6175e1 AD |
205 | cp (Loc.U): |
206 | This variable is be used internally by Configure to determine the | |
207 | full pathname (if any) of the cp program. After Configure runs, | |
208 | the value is reset to a plain "cp" and is not useful. | |
209 | ||
210 | cpio (Loc.U): | |
211 | This variable is defined but not used by Configure. | |
212 | The value is a plain '' and is not useful. | |
213 | ||
214 | cpp (Loc.U): | |
215 | This variable is be used internally by Configure to determine the | |
216 | full pathname (if any) of the cpp program. After Configure runs, | |
217 | the value is reset to a plain "cpp" and is not useful. | |
218 | ||
d7418ba7 | 219 | cpp_stuff (cpp_stuff.U): |
220 | This variable contains an identification of the catenation mechanism | |
221 | used by the C preprocessor. | |
222 | ||
732c9516 JH |
223 | cppccsymbols (Cppsym.U): |
224 | The variable contains the symbols defined by the C compiler when | |
225 | when it calls cpp. The symbols defined by the cc alone or cpp | |
226 | alone are not in this list, see ccsymbols and cppsymbols. | |
227 | The list is a space-separated list of symbol=value tokens. | |
228 | ||
d7418ba7 | 229 | cppflags (ccflags.U): |
230 | This variable holds the flags that will be passed to the C pre- | |
231 | processor. It is up to the Makefile to use it. | |
232 | ||
dfe9444c | 233 | cpplast (cppstdin.U): |
921b2963 JH |
234 | This variable has the same functionality as cppminus, only it applies |
235 | to cpprun and not cppstdin. | |
dfe9444c | 236 | |
d7418ba7 | 237 | cppminus (cppstdin.U): |
238 | This variable contains the second part of the string which will invoke | |
239 | the C preprocessor on the standard input and produce to standard | |
921b2963 JH |
240 | output. This variable will have the value "-" if cppstdin needs |
241 | a minus to specify standard input, otherwise the value is "". | |
d7418ba7 | 242 | |
dfe9444c AD |
243 | cpprun (cppstdin.U): |
244 | This variable contains the command which will invoke a C preprocessor | |
245 | on standard input and put the output to stdout. It is guaranteed not | |
246 | to be a wrapper and may be a null string if no preprocessor can be | |
247 | made directly available. This preprocessor might be different from the | |
248 | one used by the C compiler. Don't forget to append cpplast after the | |
249 | preprocessor options. | |
250 | ||
d7418ba7 | 251 | cppstdin (cppstdin.U): |
252 | This variable contains the command which will invoke the C | |
253 | preprocessor on standard input and put the output to stdout. | |
254 | It is primarily used by other Configure units that ask about | |
255 | preprocessor symbols. | |
256 | ||
732c9516 JH |
257 | cppsymbols (Cppsym.U): |
258 | The variable contains the symbols defined by the C preprocessor | |
259 | alone. The symbols defined by cc or by cc when it calls cpp are | |
260 | not in this list, see ccsymbols and cppccsymbols. | |
261 | The list is a space-separated list of symbol=value tokens. | |
262 | ||
d7418ba7 | 263 | cryptlib (d_crypt.U): |
264 | This variable holds -lcrypt or the path to a libcrypt.a archive if | |
265 | the crypt() function is not defined in the standard C library. It is | |
266 | up to the Makefile to use this. | |
267 | ||
3a6175e1 AD |
268 | csh (Loc.U): |
269 | This variable is be used internally by Configure to determine the | |
270 | full pathname (if any) of the csh program. After Configure runs, | |
271 | the value is reset to a plain "csh" and is not useful. | |
272 | ||
d7418ba7 | 273 | d_access (d_access.U): |
274 | This variable conditionally defines HAS_ACCESS if the access() system | |
275 | call is available to check for access permissions using real IDs. | |
276 | ||
921b2963 JH |
277 | d_accessx (d_accessx.U): |
278 | This variable conditionally defines the HAS_ACCESSX symbol, which | |
279 | indicates to the C program that the accessx() routine is available. | |
280 | ||
d7418ba7 | 281 | d_alarm (d_alarm.U): |
282 | This variable conditionally defines the HAS_ALARM symbol, which | |
283 | indicates to the C program that the alarm() routine is available. | |
284 | ||
285 | d_archlib (archlib.U): | |
286 | This variable conditionally defines ARCHLIB to hold the pathname | |
287 | of architecture-dependent library files for $package. If | |
288 | $archlib is the same as $privlib, then this is set to undef. | |
289 | ||
dc45a647 MB |
290 | d_attribut (d_attribut.U): |
291 | This variable conditionally defines HASATTRIBUTE, which | |
292 | indicates the C compiler can check for function attributes, | |
293 | such as printf formats. | |
294 | ||
d7418ba7 | 295 | d_bcmp (d_bcmp.U): |
296 | This variable conditionally defines the HAS_BCMP symbol if | |
297 | the bcmp() routine is available to compare strings. | |
298 | ||
299 | d_bcopy (d_bcopy.U): | |
300 | This variable conditionally defines the HAS_BCOPY symbol if | |
301 | the bcopy() routine is available to copy strings. | |
302 | ||
dfe9444c AD |
303 | d_bsd (Guess.U): |
304 | This symbol conditionally defines the symbol BSD when running on a | |
305 | BSD system. | |
7e1af8bc | 306 | |
c43cd16b | 307 | d_bsdgetpgrp (d_getpgrp.U): |
308 | This variable conditionally defines USE_BSD_GETPGRP if | |
309 | getpgrp needs one arguments whereas USG one needs none. | |
310 | ||
dc45a647 MB |
311 | d_bsdsetpgrp (d_setpgrp.U): |
312 | This variable conditionally defines USE_BSD_SETPGRP if | |
313 | setpgrp needs two arguments whereas USG one needs none. | |
314 | See also d_setpgid for a POSIX interface. | |
315 | ||
d7418ba7 | 316 | d_bzero (d_bzero.U): |
317 | This variable conditionally defines the HAS_BZERO symbol if | |
318 | the bzero() routine is available to set memory to 0. | |
319 | ||
320 | d_casti32 (d_casti32.U): | |
321 | This variable conditionally defines CASTI32, which indicates | |
322 | whether the C compiler can cast large floats to 32-bit ints. | |
323 | ||
324 | d_castneg (d_castneg.U): | |
325 | This variable conditionally defines CASTNEG, which indicates | |
326 | wether the C compiler can cast negative float to unsigned. | |
327 | ||
328 | d_charvspr (d_vprintf.U): | |
329 | This variable conditionally defines CHARVSPRINTF if this system | |
330 | has vsprintf returning type (char*). The trend seems to be to | |
331 | declare it as "int vsprintf()". | |
332 | ||
333 | d_chown (d_chown.U): | |
334 | This variable conditionally defines the HAS_CHOWN symbol, which | |
335 | indicates to the C program that the chown() routine is available. | |
336 | ||
337 | d_chroot (d_chroot.U): | |
338 | This variable conditionally defines the HAS_CHROOT symbol, which | |
339 | indicates to the C program that the chroot() routine is available. | |
340 | ||
341 | d_chsize (d_chsize.U): | |
342 | This variable conditionally defines the CHSIZE symbol, which | |
343 | indicates to the C program that the chsize() routine is available | |
344 | to truncate files. You might need a -lx to get this routine. | |
345 | ||
dfe9444c AD |
346 | d_closedir (d_closedir.U): |
347 | This variable conditionally defines HAS_CLOSEDIR if closedir() is | |
348 | available. | |
349 | ||
de4597cb JH |
350 | d_cmsghdr_s (d_socket.U): |
351 | This variable conditionally defines the HAS_STRUCT_CMSGHDR symbol, | |
352 | which indicates that the the struct cmsghdr is supported. | |
353 | ||
d7418ba7 | 354 | d_const (d_const.U): |
355 | This variable conditionally defines the HASCONST symbol, which | |
356 | indicates to the C program that this C compiler knows about the | |
357 | const type. | |
358 | ||
359 | d_crypt (d_crypt.U): | |
360 | This variable conditionally defines the CRYPT symbol, which | |
361 | indicates to the C program that the crypt() routine is available | |
362 | to encrypt passwords and the like. | |
363 | ||
364 | d_csh (d_csh.U): | |
365 | This variable conditionally defines the CSH symbol, which | |
366 | indicates to the C program that the C-shell exists. | |
367 | ||
368 | d_cuserid (d_cuserid.U): | |
369 | This variable conditionally defines the HAS_CUSERID symbol, which | |
370 | indicates to the C program that the cuserid() routine is available | |
371 | to get character login names. | |
372 | ||
373 | d_dbl_dig (d_dbl_dig.U): | |
374 | This variable conditionally defines d_dbl_dig if this system's | |
375 | header files provide DBL_DIG, which is the number of significant | |
376 | digits in a double precision number. | |
377 | ||
921b2963 JH |
378 | d_dbmclose64 (dbm64.U): |
379 | This variable conditionally defines the HAS_DBMCLOSE64 symbol, which | |
380 | indicates to the C program that the dbmclose64() routine is available. | |
381 | ||
382 | d_dbminit64 (dbm64.U): | |
383 | This variable conditionally defines the HAS_DBMINIT64 symbol, which | |
384 | indicates to the C program that the dbminit64() routine is available. | |
385 | ||
386 | d_delete64 (dbm64.U): | |
387 | This variable conditionally defines the HAS_DELETE64 symbol, which | |
388 | indicates to the C program that the delete64() routine is available. | |
389 | ||
d7418ba7 | 390 | d_difftime (d_difftime.U): |
391 | This variable conditionally defines the HAS_DIFFTIME symbol, which | |
392 | indicates to the C program that the difftime() routine is available. | |
393 | ||
de4597cb | 394 | d_dirent64_s (io64.U): |
921b2963 JH |
395 | This symbol will be defined if the C compiler supports struct dirent64. |
396 | ||
d7418ba7 | 397 | d_dirnamlen (i_dirent.U): |
398 | This variable conditionally defines DIRNAMLEN, which indicates | |
399 | to the C program that the length of directory entry names is | |
400 | provided by a d_namelen field. | |
401 | ||
402 | d_dlerror (d_dlerror.U): | |
403 | This variable conditionally defines the HAS_DLERROR symbol, which | |
404 | indicates to the C program that the dlerror() routine is available. | |
405 | ||
dfe9444c AD |
406 | d_dlopen (d_dlopen.U): |
407 | This variable conditionally defines the HAS_DLOPEN symbol, which | |
408 | indicates to the C program that the dlopen() routine is available. | |
409 | ||
d7418ba7 | 410 | d_dlsymun (d_dlsymun.U): |
411 | This variable conditionally defines DLSYM_NEEDS_UNDERSCORE, which | |
412 | indicates that we need to prepend an underscore to the symbol | |
413 | name before calling dlsym(). | |
414 | ||
415 | d_dosuid (d_dosuid.U): | |
416 | This variable conditionally defines the symbol DOSUID, which | |
417 | tells the C program that it should insert setuid emulation code | |
418 | on hosts which have setuid #! scripts disabled. | |
419 | ||
921b2963 JH |
420 | d_drand48proto (d_drand48proto.U): |
421 | This variable conditionally defines the HAS_DRAND48_PROTO symbol, | |
422 | which indicates to the C program that the system provides | |
423 | a prototype for the drand48() function. Otherwise, it is | |
424 | up to the program to supply one. | |
425 | ||
d7418ba7 | 426 | d_dup2 (d_dup2.U): |
427 | This variable conditionally defines HAS_DUP2 if dup2() is | |
428 | available to duplicate file descriptors. | |
429 | ||
921b2963 JH |
430 | d_eaccess (d_eaccess.U): |
431 | This variable conditionally defines the HAS_EACCESS symbol, which | |
432 | indicates to the C program that the eaccess() routine is available. | |
433 | ||
93341792 AD |
434 | d_endgrent (d_endgrent.U): |
435 | This variable conditionally defines the HAS_ENDGRENT symbol, which | |
436 | indicates to the C program that the endgrent() routine is available | |
437 | for sequential access of the group database. | |
438 | ||
e5c9fcd0 AD |
439 | d_endhent (d_endhent.U): |
440 | This variable conditionally defines HAS_ENDHOSTENT if endhostent() is | |
441 | available to close whatever was being used for host queries. | |
442 | ||
443 | d_endnent (d_endnent.U): | |
444 | This variable conditionally defines HAS_ENDNETENT if endnetent() is | |
445 | available to close whatever was being used for network queries. | |
446 | ||
447 | d_endpent (d_endpent.U): | |
448 | This variable conditionally defines HAS_ENDPROTOENT if endprotoent() is | |
449 | available to close whatever was being used for protocol queries. | |
450 | ||
93341792 AD |
451 | d_endpwent (d_endpwent.U): |
452 | This variable conditionally defines the HAS_ENDPWENT symbol, which | |
453 | indicates to the C program that the endpwent() routine is available | |
454 | for sequential access of the passwd database. | |
455 | ||
e5c9fcd0 AD |
456 | d_endsent (d_endsent.U): |
457 | This variable conditionally defines HAS_ENDSERVENT if endservent() is | |
458 | available to close whatever was being used for service queries. | |
459 | ||
d7418ba7 | 460 | d_eofnblk (nblock_io.U): |
461 | This variable conditionally defines EOF_NONBLOCK if EOF can be seen | |
462 | when reading from a non-blocking I/O source. | |
463 | ||
dfe9444c AD |
464 | d_eunice (Guess.U): |
465 | This variable conditionally defines the symbols EUNICE and VAX, which | |
466 | alerts the C program that it must deal with ideosyncracies of VMS. | |
467 | ||
d7418ba7 | 468 | d_fchmod (d_fchmod.U): |
469 | This variable conditionally defines the HAS_FCHMOD symbol, which | |
470 | indicates to the C program that the fchmod() routine is available | |
471 | to change mode of opened files. | |
472 | ||
473 | d_fchown (d_fchown.U): | |
474 | This variable conditionally defines the HAS_FCHOWN symbol, which | |
475 | indicates to the C program that the fchown() routine is available | |
476 | to change ownership of opened files. | |
477 | ||
478 | d_fcntl (d_fcntl.U): | |
479 | This variable conditionally defines the HAS_FCNTL symbol, and indicates | |
480 | whether the fcntl() function exists | |
481 | ||
dfe9444c AD |
482 | d_fd_macros (d_fd_set.U): |
483 | This variable contains the eventual value of the HAS_FD_MACROS symbol, | |
484 | which indicates if your C compiler knows about the macros which | |
485 | manipulate an fd_set. | |
486 | ||
487 | d_fd_set (d_fd_set.U): | |
488 | This variable contains the eventual value of the HAS_FD_SET symbol, | |
489 | which indicates if your C compiler knows about the fd_set typedef. | |
490 | ||
491 | d_fds_bits (d_fd_set.U): | |
492 | This variable contains the eventual value of the HAS_FDS_BITS symbol, | |
493 | which indicates if your fd_set typedef contains the fds_bits member. | |
494 | If you have an fd_set typedef, but the dweebs who installed it did | |
495 | a half-fast job and neglected to provide the macros to manipulate | |
496 | an fd_set, HAS_FDS_BITS will let us know how to fix the gaffe. | |
497 | ||
921b2963 JH |
498 | d_fetch64 (dbm64.U): |
499 | This variable conditionally defines the HAS_FETCH64 symbol, which | |
500 | indicates to the C program that the fetch64() routine is available. | |
501 | ||
502 | d_fgetpos64 (stdio64.U): | |
503 | This variable conditionally defines the HAS_FGETPOS64 symbol, which | |
504 | indicates to the C program that the fgetpos64() routine is available. | |
505 | ||
d7418ba7 | 506 | d_fgetpos (d_fgetpos.U): |
507 | This variable conditionally defines HAS_FGETPOS if fgetpos() is | |
508 | available to get the file position indicator. | |
509 | ||
921b2963 JH |
510 | d_firstkey64 (dbm64.U): |
511 | This variable conditionally defines the HAS_FIRSTKEY64 symbol, which | |
512 | indicates to the C program that the firstkey64() routine is available. | |
513 | ||
d7418ba7 | 514 | d_flexfnam (d_flexfnam.U): |
515 | This variable conditionally defines the FLEXFILENAMES symbol, which | |
516 | indicates that the system supports filenames longer than 14 characters. | |
517 | ||
de4597cb | 518 | d_flock64_s (io64.U): |
921b2963 JH |
519 | This symbol will be defined if the C compiler supports struct flock64. |
520 | ||
d7418ba7 | 521 | d_flock (d_flock.U): |
522 | This variable conditionally defines HAS_FLOCK if flock() is | |
523 | available to do file locking. | |
524 | ||
921b2963 JH |
525 | d_fopen64 (stdio64.U): |
526 | This variable conditionally defines the HAS_FOPEN64 symbol, which | |
527 | indicates to the C program that the fopen64() routine is available. | |
528 | ||
d7418ba7 | 529 | d_fork (d_fork.U): |
530 | This variable conditionally defines the HAS_FORK symbol, which | |
531 | indicates to the C program that the fork() routine is available. | |
532 | ||
533 | d_fpathconf (d_pathconf.U): | |
534 | This variable conditionally defines the HAS_FPATHCONF symbol, which | |
535 | indicates to the C program that the pathconf() routine is available | |
536 | to determine file-system related limits and options associated | |
537 | with a given open file descriptor. | |
538 | ||
921b2963 JH |
539 | d_freopen64 (stdio64.U): |
540 | This variable conditionally defines the HAS_FREOPEN64 symbol, which | |
541 | indicates to the C program that the freopen64() routine is available. | |
542 | ||
543 | d_fseek64 (stdio64.U): | |
544 | This variable conditionally defines the HAS_FSEEK64 symbol, which | |
545 | indicates to the C program that the fseek64() routine is available. | |
546 | ||
547 | d_fseeko64 (stdio64.U): | |
548 | This variable conditionally defines the HAS_FSEEKO64 symbol, which | |
549 | indicates to the C program that the fseeko64() routine is available. | |
550 | ||
551 | d_fseeko (d_fseeko.U): | |
552 | This variable conditionally defines the HAS_FSEEKO symbol, which | |
553 | indicates to the C program that the fseeko() routine is available. | |
554 | ||
555 | d_fsetpos64 (stdio64.U): | |
556 | This variable conditionally defines the HAS_FSETPOS64 symbol, which | |
557 | indicates to the C program that the fsetpos64() routine is available. | |
558 | ||
d7418ba7 | 559 | d_fsetpos (d_fsetpos.U): |
560 | This variable conditionally defines HAS_FSETPOS if fsetpos() is | |
561 | available to set the file position indicator. | |
562 | ||
921b2963 JH |
563 | d_fstat64 (io64.U): |
564 | This variable conditionally defines the HAS_FSTAT64 symbol, which | |
565 | indicates to the C program that the fstat64() routine is available. | |
566 | ||
732c9516 JH |
567 | d_fstatfs (d_statfs.U): |
568 | This variable conditionally defines the HAS_FSTATFS symbol, which | |
569 | indicates to the C program that the fstatfs() routine is available. | |
570 | ||
571 | d_fstatvfs (d_statvfs.U): | |
572 | This variable conditionally defines the HAS_FSTATVFS symbol, which | |
573 | indicates to the C program that the fstatvfs() routine is available. | |
574 | ||
921b2963 JH |
575 | d_ftell64 (stdio64.U): |
576 | This variable conditionally defines the HAS_FTELL64 symbol, which | |
577 | indicates to the C program that the ftell64() routine is available. | |
578 | ||
579 | d_ftello64 (stdio64.U): | |
580 | This variable conditionally defines the HAS_FTELLO64 symbol, which | |
581 | indicates to the C program that the ftello64() routine is available. | |
582 | ||
583 | d_ftello (d_ftello.U): | |
584 | This variable conditionally defines the HAS_FTELLO symbol, which | |
585 | indicates to the C program that the ftello() routine is available. | |
586 | ||
7e1af8bc | 587 | d_ftime (d_ftime.U): |
dfe9444c AD |
588 | This variable conditionally defines the HAS_FTIME symbol, which indicates |
589 | that the ftime() routine exists. The ftime() routine is basically | |
590 | a sub-second accuracy clock. | |
591 | ||
921b2963 JH |
592 | d_ftruncate64 (io64.U): |
593 | This variable conditionally defines the HAS_FTRUNCATE64 symbol, which | |
594 | indicates to the C program that the ftruncate64() routine is available. | |
595 | ||
ef4af2be JH |
596 | d_Gconvert (d_gconvert.U): |
597 | This variable holds what Gconvert is defined as to convert | |
598 | floating point numbers into strings. It could be 'gconvert' | |
599 | or a more complex macro emulating gconvert with gcvt() or sprintf. | |
600 | Possible values are: | |
ccc7f9b3 KS |
601 | d_Gconvert='gconvert((x),(n),(t),(b))' |
602 | d_Gconvert='gcvt((x),(n),(b))' | |
603 | d_Gconvert='sprintf((b),"%.*g",(n),(x))' | |
ef4af2be | 604 | |
93341792 AD |
605 | d_getgrent (d_getgrent.U): |
606 | This variable conditionally defines the HAS_GETGRENT symbol, which | |
607 | indicates to the C program that the getgrent() routine is available | |
608 | for sequential access of the group database. | |
609 | ||
dfe9444c AD |
610 | d_getgrps (d_getgrps.U): |
611 | This variable conditionally defines the HAS_GETGROUPS symbol, which | |
612 | indicates to the C program that the getgroups() routine is available | |
613 | to get the list of process groups. | |
614 | ||
615 | d_gethbyaddr (d_gethbyad.U): | |
616 | This variable conditionally defines the HAS_GETHOSTBYADDR symbol, which | |
617 | indicates to the C program that the gethostbyaddr() routine is available | |
618 | to look up hosts by their IP addresses. | |
7e1af8bc | 619 | |
dc45a647 MB |
620 | d_gethbyname (d_gethbynm.U): |
621 | This variable conditionally defines the HAS_GETHOSTBYNAME symbol, which | |
622 | indicates to the C program that the gethostbyname() routine is available | |
623 | to look up host names in some data base or other. | |
624 | ||
d7418ba7 | 625 | d_gethent (d_gethent.U): |
626 | This variable conditionally defines HAS_GETHOSTENT if gethostent() is | |
693762b4 | 627 | available to look up host names in some data base or another. |
d7418ba7 | 628 | |
dfe9444c AD |
629 | d_gethname (d_gethname.U): |
630 | This variable conditionally defines the HAS_GETHOSTNAME symbol, which | |
631 | indicates to the C program that the gethostname() routine may be | |
632 | used to derive the host name. | |
7e1af8bc | 633 | |
dc45a647 MB |
634 | d_gethostprotos (d_gethostprotos.U): |
635 | This variable conditionally defines the HAS_GETHOST_PROTOS symbol, | |
636 | which indicates to the C program that <netdb.h> supplies | |
637 | prototypes for the various gethost*() functions. | |
638 | See also netdbtype.U for probing for various netdb types. | |
639 | ||
d7418ba7 | 640 | d_getlogin (d_getlogin.U): |
641 | This variable conditionally defines the HAS_GETLOGIN symbol, which | |
642 | indicates to the C program that the getlogin() routine is available | |
643 | to get the login name. | |
644 | ||
732c9516 JH |
645 | d_getmntent (d_getmntent.U): |
646 | This variable conditionally defines the HAS_GETMNTENT symbol, which | |
647 | indicates to the C program that the getmntent() routine is available | |
648 | to iterate through mounted files. | |
649 | ||
dfe9444c AD |
650 | d_getnbyaddr (d_getnbyad.U): |
651 | This variable conditionally defines the HAS_GETNETBYADDR symbol, which | |
652 | indicates to the C program that the getnetbyaddr() routine is available | |
653 | to look up networks by their IP addresses. | |
654 | ||
693762b4 AD |
655 | d_getnbyname (d_getnbynm.U): |
656 | This variable conditionally defines the HAS_GETNETBYNAME symbol, which | |
657 | indicates to the C program that the getnetbyname() routine is available | |
658 | to look up networks by their names. | |
659 | ||
e5c9fcd0 AD |
660 | d_getnent (d_getnent.U): |
661 | This variable conditionally defines HAS_GETNETENT if getnetent() is | |
662 | available to look up network names in some data base or another. | |
663 | ||
dc45a647 MB |
664 | d_getnetprotos (d_getnetprotos.U): |
665 | This variable conditionally defines the HAS_GETNET_PROTOS symbol, | |
666 | which indicates to the C program that <netdb.h> supplies | |
667 | prototypes for the various getnet*() functions. | |
668 | See also netdbtype.U for probing for various netdb types. | |
669 | ||
693762b4 AD |
670 | d_getpbyname (d_getprotby.U): |
671 | This variable conditionally defines the HAS_GETPROTOBYNAME | |
672 | symbol, which indicates to the C program that the | |
673 | getprotobyname() routine is available to look up protocols | |
674 | by their name. | |
675 | ||
676 | d_getpbynumber (d_getprotby.U): | |
677 | This variable conditionally defines the HAS_GETPROTOBYNUMBER | |
678 | symbol, which indicates to the C program that the | |
679 | getprotobynumber() routine is available to look up protocols | |
680 | by their number. | |
681 | ||
e5c9fcd0 AD |
682 | d_getpent (d_getpent.U): |
683 | This variable conditionally defines HAS_GETPROTOENT if getprotoent() is | |
684 | available to look up protocols in some data base or another. | |
685 | ||
c43cd16b | 686 | d_getpgid (d_getpgid.U): |
687 | This variable conditionally defines the HAS_GETPGID symbol, which | |
688 | indicates to the C program that the getpgid(pid) function | |
689 | is available to get the process group id. | |
690 | ||
d7418ba7 | 691 | d_getpgrp2 (d_getpgrp2.U): |
692 | This variable conditionally defines the HAS_GETPGRP2 symbol, which | |
693 | indicates to the C program that the getpgrp2() (as in DG/UX) routine | |
694 | is available to get the current process group. | |
695 | ||
dfe9444c AD |
696 | d_getpgrp (d_getpgrp.U): |
697 | This variable conditionally defines HAS_GETPGRP if getpgrp() is | |
698 | available to get the current process group. | |
699 | ||
d7418ba7 | 700 | d_getppid (d_getppid.U): |
701 | This variable conditionally defines the HAS_GETPPID symbol, which | |
702 | indicates to the C program that the getppid() routine is available | |
703 | to get the parent process ID. | |
704 | ||
705 | d_getprior (d_getprior.U): | |
706 | This variable conditionally defines HAS_GETPRIORITY if getpriority() | |
707 | is available to get a process's priority. | |
708 | ||
dc45a647 MB |
709 | d_getprotoprotos (d_getprotoprotos.U): |
710 | This variable conditionally defines the HAS_GETPROTO_PROTOS symbol, | |
711 | which indicates to the C program that <netdb.h> supplies | |
712 | prototypes for the various getproto*() functions. | |
713 | See also netdbtype.U for probing for various netdb types. | |
714 | ||
93341792 AD |
715 | d_getpwent (d_getpwent.U): |
716 | This variable conditionally defines the HAS_GETPWENT symbol, which | |
717 | indicates to the C program that the getpwent() routine is available | |
718 | for sequential access of the passwd database. | |
719 | ||
693762b4 AD |
720 | d_getsbyname (d_getsrvby.U): |
721 | This variable conditionally defines the HAS_GETSERVBYNAME | |
722 | symbol, which indicates to the C program that the | |
723 | getservbyname() routine is available to look up services | |
724 | by their name. | |
725 | ||
726 | d_getsbyport (d_getsrvby.U): | |
727 | This variable conditionally defines the HAS_GETSERVBYPORT | |
728 | symbol, which indicates to the C program that the | |
729 | getservbyport() routine is available to look up services | |
730 | by their port. | |
731 | ||
e5c9fcd0 AD |
732 | d_getsent (d_getsent.U): |
733 | This variable conditionally defines HAS_GETSERVENT if getservent() is | |
734 | available to look up network services in some data base or another. | |
735 | ||
dc45a647 MB |
736 | d_getservprotos (d_getservprotos.U): |
737 | This variable conditionally defines the HAS_GETSERV_PROTOS symbol, | |
738 | which indicates to the C program that <netdb.h> supplies | |
739 | prototypes for the various getserv*() functions. | |
740 | See also netdbtype.U for probing for various netdb types. | |
741 | ||
dfe9444c AD |
742 | d_gettimeod (d_ftime.U): |
743 | This variable conditionally defines the HAS_GETTIMEOFDAY symbol, which | |
744 | indicates that the gettimeofday() system call exists (to obtain a | |
745 | sub-second accuracy clock). You should probably include <sys/resource.h>. | |
746 | ||
747 | d_gnulibc (d_gnulibc.U): | |
748 | Defined if we're dealing with the GNU C Library. | |
749 | ||
93341792 AD |
750 | d_grpasswd (i_grp.U): |
751 | This variable conditionally defines GRPASSWD, which indicates | |
752 | that struct group in <grp.h> contains gr_passwd. | |
753 | ||
732c9516 JH |
754 | d_hasmntopt (d_hasmntopt.U): |
755 | This variable conditionally defines the HAS_HASMNTOPT symbol, which | |
756 | indicates to the C program that the hasmntopt() routine is available | |
757 | to query the mount options of file systems. | |
758 | ||
d7418ba7 | 759 | d_htonl (d_htonl.U): |
760 | This variable conditionally defines HAS_HTONL if htonl() and its | |
761 | friends are available to do network order byte swapping. | |
762 | ||
763 | d_index (d_strchr.U): | |
764 | This variable conditionally defines HAS_INDEX if index() and | |
765 | rindex() are available for string searching. | |
766 | ||
7e1af8bc | 767 | d_inetaton (d_inetaton.U): |
768 | This variable conditionally defines the HAS_INET_ATON symbol, which | |
769 | indicates to the C program that the inet_aton() function is available | |
770 | to parse IP address "dotted-quad" strings. | |
771 | ||
921b2963 JH |
772 | d_ino64t (io64.U): |
773 | This symbol will be defined if the C compiler supports ino64_t. | |
774 | ||
775 | d_int64t (i_inttypes.U): | |
ccc7f9b3 | 776 | This symbol will be defined if the C compiler supports int64_t. |
921b2963 | 777 | |
de4597cb JH |
778 | d_iovec_s (i_sysuio.U): |
779 | This variable conditionally defines the HAS_STRUCT_IOVEC symbol, | |
780 | which indicates that the struct iovec is supported. | |
781 | ||
d7418ba7 | 782 | d_isascii (d_isascii.U): |
783 | This variable conditionally defines the HAS_ISASCII constant, | |
784 | which indicates to the C program that isascii() is available. | |
785 | ||
786 | d_killpg (d_killpg.U): | |
787 | This variable conditionally defines the HAS_KILLPG symbol, which | |
788 | indicates to the C program that the killpg() routine is available | |
789 | to kill process groups. | |
790 | ||
dd64f1c3 AD |
791 | d_lchown (d_lchown.U): |
792 | This variable conditionally defines the HAS_LCHOWN symbol, which | |
793 | indicates to the C program that the lchown() routine is available | |
794 | to operate on a symbolic link (instead of following the link). | |
795 | ||
d7418ba7 | 796 | d_link (d_link.U): |
797 | This variable conditionally defines HAS_LINK if link() is | |
798 | available to create hard links. | |
799 | ||
800 | d_locconv (d_locconv.U): | |
801 | This variable conditionally defines HAS_LOCALECONV if localeconv() is | |
802 | available for numeric and monetary formatting conventions. | |
803 | ||
921b2963 JH |
804 | d_lockf64 (io64.U): |
805 | This variable conditionally defines the HAS_LOCKF64 symbol, which | |
806 | indicates to the C program that the lockf64() routine is available. | |
807 | ||
d7418ba7 | 808 | d_lockf (d_lockf.U): |
809 | This variable conditionally defines HAS_LOCKF if lockf() is | |
810 | available to do file locking. | |
811 | ||
e5c9fcd0 AD |
812 | d_longdbl (d_longdbl.U): |
813 | This variable conditionally defines HAS_LONG_DOUBLE if | |
814 | the long double type is supported. | |
815 | ||
dc45a647 MB |
816 | d_longlong (d_longlong.U): |
817 | This variable conditionally defines HAS_LONG_LONG if | |
818 | the long long type is supported. | |
819 | ||
921b2963 JH |
820 | d_lseek64 (io64.U): |
821 | This variable conditionally defines the HAS_LSEEK64 symbol, which | |
822 | indicates to the C program that the lseek64() routine is available. | |
823 | ||
824 | d_lstat64 (io64.U): | |
825 | This variable conditionally defines the HAS_LSTAT64 symbol, which | |
826 | indicates to the C program that the lstat64() routine is available. | |
827 | ||
d7418ba7 | 828 | d_lstat (d_lstat.U): |
829 | This variable conditionally defines HAS_LSTAT if lstat() is | |
830 | available to do file stats on symbolic links. | |
831 | ||
732c9516 JH |
832 | d_madvise (d_madvise.U): |
833 | This variable conditionally defines HAS_MADVISE if madvise() is | |
834 | available to map a file into memory. | |
835 | ||
d7418ba7 | 836 | d_mblen (d_mblen.U): |
837 | This variable conditionally defines the HAS_MBLEN symbol, which | |
838 | indicates to the C program that the mblen() routine is available | |
839 | to find the number of bytes in a multibye character. | |
840 | ||
841 | d_mbstowcs (d_mbstowcs.U): | |
842 | This variable conditionally defines the HAS_MBSTOWCS symbol, which | |
843 | indicates to the C program that the mbstowcs() routine is available | |
844 | to convert a multibyte string into a wide character string. | |
845 | ||
846 | d_mbtowc (d_mbtowc.U): | |
847 | This variable conditionally defines the HAS_MBTOWC symbol, which | |
848 | indicates to the C program that the mbtowc() routine is available | |
849 | to convert multibyte to a wide character. | |
850 | ||
851 | d_memcmp (d_memcmp.U): | |
852 | This variable conditionally defines the HAS_MEMCMP symbol, which | |
853 | indicates to the C program that the memcmp() routine is available | |
854 | to compare blocks of memory. | |
855 | ||
856 | d_memcpy (d_memcpy.U): | |
857 | This variable conditionally defines the HAS_MEMCPY symbol, which | |
858 | indicates to the C program that the memcpy() routine is available | |
859 | to copy blocks of memory. | |
860 | ||
861 | d_memmove (d_memmove.U): | |
862 | This variable conditionally defines the HAS_MEMMOVE symbol, which | |
863 | indicates to the C program that the memmove() routine is available | |
864 | to copy potentatially overlapping blocks of memory. | |
865 | ||
866 | d_memset (d_memset.U): | |
867 | This variable conditionally defines the HAS_MEMSET symbol, which | |
868 | indicates to the C program that the memset() routine is available | |
869 | to set blocks of memory. | |
870 | ||
871 | d_mkdir (d_mkdir.U): | |
872 | This variable conditionally defines the HAS_MKDIR symbol, which | |
873 | indicates to the C program that the mkdir() routine is available | |
874 | to create directories.. | |
875 | ||
876 | d_mkfifo (d_mkfifo.U): | |
877 | This variable conditionally defines the HAS_MKFIFO symbol, which | |
878 | indicates to the C program that the mkfifo() routine is available. | |
879 | ||
880 | d_mktime (d_mktime.U): | |
881 | This variable conditionally defines the HAS_MKTIME symbol, which | |
882 | indicates to the C program that the mktime() routine is available. | |
883 | ||
732c9516 JH |
884 | d_mmap (d_mmap.U): |
885 | This variable conditionally defines HAS_MMAP if mmap() is | |
886 | available to map a file into memory. | |
887 | ||
888 | d_mprotect (d_mprotect.U): | |
889 | This variable conditionally defines HAS_MPROTECT if mprotect() is | |
890 | available to modify the access protection of a memory mapped file. | |
891 | ||
d7418ba7 | 892 | d_msg (d_msg.U): |
893 | This variable conditionally defines the HAS_MSG symbol, which | |
894 | indicates that the entire msg*(2) library is present. | |
895 | ||
de4597cb JH |
896 | d_msg_ctrunc (d_socket.U): |
897 | This variable conditionally defines the HAS_MSG_CTRUNC symbol, | |
898 | which indicates that the MSG_CTRUNC is available. #ifdef is | |
899 | not enough because it may be an enum, glibc has been known to do this. | |
900 | ||
901 | d_msg_dontroute (d_socket.U): | |
902 | This variable conditionally defines the HAS_MSG_DONTROUTE symbol, | |
903 | which indicates that the MSG_DONTROUTE is available. #ifdef is | |
904 | not enough because it may be an enum, glibc has been known to do this. | |
905 | ||
906 | d_msg_oob (d_socket.U): | |
907 | This variable conditionally defines the HAS_MSG_OOB symbol, | |
908 | which indicates that the MSG_OOB is available. #ifdef is | |
909 | not enough because it may be an enum, glibc has been known to do this. | |
910 | ||
911 | d_msg_peek (d_socket.U): | |
912 | This variable conditionally defines the HAS_MSG_PEEK symbol, | |
913 | which indicates that the MSG_PEEK is available. #ifdef is | |
914 | not enough because it may be an enum, glibc has been known to do this. | |
915 | ||
916 | d_msg_proxy (d_socket.U): | |
917 | This variable conditionally defines the HAS_MSG_PROXY symbol, | |
918 | which indicates that the MSG_PROXY is available. #ifdef is | |
919 | not enough because it may be an enum, glibc has been known to do this. | |
920 | ||
dfe9444c AD |
921 | d_msgctl (d_msgctl.U): |
922 | This variable conditionally defines the HAS_MSGCTL symbol, which | |
923 | indicates to the C program that the msgctl() routine is available. | |
924 | ||
925 | d_msgget (d_msgget.U): | |
926 | This variable conditionally defines the HAS_MSGGET symbol, which | |
927 | indicates to the C program that the msgget() routine is available. | |
928 | ||
de4597cb JH |
929 | d_msghdr_s (d_socket.U): |
930 | This variable conditionally defines the HAS_STRUCT_MSGHDR symbol, | |
931 | which indicates that the struct msghdr is supported. | |
932 | ||
dfe9444c AD |
933 | d_msgrcv (d_msgrcv.U): |
934 | This variable conditionally defines the HAS_MSGRCV symbol, which | |
935 | indicates to the C program that the msgrcv() routine is available. | |
936 | ||
937 | d_msgsnd (d_msgsnd.U): | |
938 | This variable conditionally defines the HAS_MSGSND symbol, which | |
939 | indicates to the C program that the msgsnd() routine is available. | |
940 | ||
732c9516 JH |
941 | d_msync (d_msync.U): |
942 | This variable conditionally defines HAS_MSYNC if msync() is | |
943 | available to synchronize a mapped file. | |
944 | ||
945 | d_munmap (d_munmap.U): | |
946 | This variable conditionally defines HAS_MUNMAP if munmap() is | |
947 | available to unmap a region mapped by mmap(). | |
948 | ||
d7418ba7 | 949 | d_mymalloc (mallocsrc.U): |
950 | This variable conditionally defines MYMALLOC in case other parts | |
951 | of the source want to take special action if MYMALLOC is used. | |
952 | This may include different sorts of profiling or error detection. | |
953 | ||
921b2963 JH |
954 | d_nextkey64 (dbm64.U): |
955 | This variable conditionally defines the HAS_NEXTKEY64 symbol, which | |
956 | indicates to the C program that the nextkey64() routine is available. | |
957 | ||
d7418ba7 | 958 | d_nice (d_nice.U): |
959 | This variable conditionally defines the HAS_NICE symbol, which | |
960 | indicates to the C program that the nice() routine is available. | |
961 | ||
921b2963 JH |
962 | d_off64t (io64.U): |
963 | This symbol will be defined if the C compiler supports off64_t. | |
964 | ||
ef4af2be JH |
965 | d_old_pthread_create_joinable (d_pthrattrj.U): |
966 | This variable conditionally defines pthread_create_joinable. | |
967 | undef if pthread.h defines PTHREAD_CREATE_JOINABLE. | |
968 | ||
693762b4 AD |
969 | d_oldpthreads (usethreads.U): |
970 | This variable conditionally defines the OLD_PTHREADS_API symbol, | |
971 | and indicates that Perl should be built to use the old | |
972 | draft POSIX threads API. This is only potneially meaningful if | |
973 | usethreads is set. | |
974 | ||
dfe9444c AD |
975 | d_oldsock (d_socket.U): |
976 | This variable conditionally defines the OLDSOCKET symbol, which | |
977 | indicates that the BSD socket interface is based on 4.1c and not 4.2. | |
d7418ba7 | 978 | |
979 | d_open3 (d_open3.U): | |
980 | This variable conditionally defines the HAS_OPEN3 manifest constant, | |
981 | which indicates to the C program that the 3 argument version of | |
982 | the open(2) function is available. | |
983 | ||
921b2963 JH |
984 | d_open64 (io64.U): |
985 | This variable conditionally defines the HAS_OPEN64 symbol, which | |
986 | indicates to the C program that the open64() routine is available. | |
987 | ||
988 | d_opendir64 (io64.U): | |
989 | This variable conditionally defines the HAS_OPENDIR64 symbol, which | |
990 | indicates to the C program that the opendir64() routine is available. | |
991 | ||
d7418ba7 | 992 | d_pathconf (d_pathconf.U): |
993 | This variable conditionally defines the HAS_PATHCONF symbol, which | |
994 | indicates to the C program that the pathconf() routine is available | |
995 | to determine file-system related limits and options associated | |
996 | with a given filename. | |
997 | ||
998 | d_pause (d_pause.U): | |
999 | This variable conditionally defines the HAS_PAUSE symbol, which | |
1000 | indicates to the C program that the pause() routine is available | |
1001 | to suspend a process until a signal is received. | |
1002 | ||
dfe9444c AD |
1003 | d_phostname (d_gethname.U): |
1004 | This variable conditionally defines the PHOSTNAME symbol, which | |
1005 | contains the shell command which, when fed to popen(), may be | |
1006 | used to derive the host name. | |
1007 | ||
d7418ba7 | 1008 | d_pipe (d_pipe.U): |
1009 | This variable conditionally defines the HAS_PIPE symbol, which | |
1010 | indicates to the C program that the pipe() routine is available | |
1011 | to create an inter-process channel. | |
1012 | ||
1013 | d_poll (d_poll.U): | |
1014 | This variable conditionally defines the HAS_POLL symbol, which | |
1015 | indicates to the C program that the poll() routine is available | |
1016 | to poll active file descriptors. | |
1017 | ||
dfe9444c AD |
1018 | d_portable (d_portable.U): |
1019 | This variable conditionally defines the PORTABLE symbol, which | |
1020 | indicates to the C program that it should not assume that it is | |
1021 | running on the machine it was compiled on. | |
1022 | ||
1023 | d_pthread_yield (d_pthread_y.U): | |
1024 | This variable conditionally defines the HAS_PTHREAD_YIELD | |
1025 | symbol if the pthread_yield routine is available to yield | |
1026 | the execution of the current thread. | |
1027 | ||
d7418ba7 | 1028 | d_pwage (i_pwd.U): |
c4f23d77 | 1029 | This variable conditionally defines PWAGE, which indicates |
d7418ba7 | 1030 | that struct passwd contains pw_age. |
1031 | ||
1032 | d_pwchange (i_pwd.U): | |
c4f23d77 | 1033 | This variable conditionally defines PWCHANGE, which indicates |
d7418ba7 | 1034 | that struct passwd contains pw_change. |
1035 | ||
1036 | d_pwclass (i_pwd.U): | |
c4f23d77 | 1037 | This variable conditionally defines PWCLASS, which indicates |
d7418ba7 | 1038 | that struct passwd contains pw_class. |
1039 | ||
1040 | d_pwcomment (i_pwd.U): | |
c4f23d77 | 1041 | This variable conditionally defines PWCOMMENT, which indicates |
d7418ba7 | 1042 | that struct passwd contains pw_comment. |
1043 | ||
1044 | d_pwexpire (i_pwd.U): | |
c4f23d77 | 1045 | This variable conditionally defines PWEXPIRE, which indicates |
d7418ba7 | 1046 | that struct passwd contains pw_expire. |
1047 | ||
c4f23d77 AD |
1048 | d_pwgecos (i_pwd.U): |
1049 | This variable conditionally defines PWGECOS, which indicates | |
1050 | that struct passwd contains pw_gecos. | |
1051 | ||
93341792 AD |
1052 | d_pwpasswd (i_pwd.U): |
1053 | This variable conditionally defines PWPASSWD, which indicates | |
1054 | that struct passwd contains pw_passwd. | |
1055 | ||
d7418ba7 | 1056 | d_pwquota (i_pwd.U): |
c4f23d77 | 1057 | This variable conditionally defines PWQUOTA, which indicates |
d7418ba7 | 1058 | that struct passwd contains pw_quota. |
1059 | ||
921b2963 JH |
1060 | d_readdir64 (io64.U): |
1061 | This variable conditionally defines the HAS_READDIR64 symbol, which | |
1062 | indicates to the C program that the readdir64() routine is available. | |
1063 | ||
d7418ba7 | 1064 | d_readdir (d_readdir.U): |
1065 | This variable conditionally defines HAS_READDIR if readdir() is | |
1066 | available to read directory entries. | |
1067 | ||
1068 | d_readlink (d_readlink.U): | |
1069 | This variable conditionally defines the HAS_READLINK symbol, which | |
1070 | indicates to the C program that the readlink() routine is available | |
1071 | to read the value of a symbolic link. | |
1072 | ||
de4597cb JH |
1073 | d_readv (d_readv.U): |
1074 | This variable conditionally defines the HAS_READV symbol, which | |
1075 | indicates to the C program that the readv() routine is available. | |
1076 | ||
1077 | d_recvmsg (d_socket.U): | |
1078 | This variable conditionally defines the HAS_RECVMSG symbol, | |
1079 | which indicates that the recvmsg is supported. | |
1080 | ||
d7418ba7 | 1081 | d_rename (d_rename.U): |
1082 | This variable conditionally defines the HAS_RENAME symbol, which | |
1083 | indicates to the C program that the rename() routine is available | |
1084 | to rename files. | |
1085 | ||
1086 | d_rewinddir (d_readdir.U): | |
1087 | This variable conditionally defines HAS_REWINDDIR if rewinddir() is | |
1088 | available. | |
1089 | ||
1090 | d_rmdir (d_rmdir.U): | |
1091 | This variable conditionally defines HAS_RMDIR if rmdir() is | |
1092 | available to remove directories. | |
1093 | ||
1094 | d_safebcpy (d_safebcpy.U): | |
1095 | This variable conditionally defines the HAS_SAFE_BCOPY symbol if | |
1096 | the bcopy() routine can do overlapping copies. | |
1097 | ||
1098 | d_safemcpy (d_safemcpy.U): | |
1099 | This variable conditionally defines the HAS_SAFE_MEMCPY symbol if | |
1100 | the memcpy() routine can do overlapping copies. | |
1101 | ||
7e1af8bc | 1102 | d_sanemcmp (d_sanemcmp.U): |
1103 | This variable conditionally defines the HAS_SANE_MEMCMP symbol if | |
1104 | the memcpy() routine is available and can be used to compare relative | |
1105 | magnitudes of chars with their high bits set. | |
1106 | ||
dfe9444c AD |
1107 | d_sched_yield (d_pthread_y.U): |
1108 | This variable conditionally defines the HAS_SCHED_YIELD | |
1109 | symbol if the sched_yield routine is available to yield | |
1110 | the execution of the current thread. | |
1111 | ||
de4597cb JH |
1112 | d_scm_rights (d_socket.U): |
1113 | This variable conditionally defines the HAS_SCM_RIGHTS symbol, | |
1114 | which indicates that the SCM_RIGHTS is available. #ifdef is | |
1115 | not enough because it may be an enum, glibc has been known to do this. | |
1116 | ||
921b2963 JH |
1117 | d_seekdir64 (io64.U): |
1118 | This variable conditionally defines the HAS_SEEKDIR64 symbol, which | |
1119 | indicates to the C program that the seekdir64() routine is available. | |
1120 | ||
d7418ba7 | 1121 | d_seekdir (d_readdir.U): |
1122 | This variable conditionally defines HAS_SEEKDIR if seekdir() is | |
1123 | available. | |
1124 | ||
1125 | d_select (d_select.U): | |
1126 | This variable conditionally defines HAS_SELECT if select() is | |
1127 | available to select active file descriptors. A <sys/time.h> | |
1128 | inclusion may be necessary for the timeout field. | |
1129 | ||
1130 | d_sem (d_sem.U): | |
1131 | This variable conditionally defines the HAS_SEM symbol, which | |
1132 | indicates that the entire sem*(2) library is present. | |
1133 | ||
dfe9444c AD |
1134 | d_semctl (d_semctl.U): |
1135 | This variable conditionally defines the HAS_SEMCTL symbol, which | |
1136 | indicates to the C program that the semctl() routine is available. | |
1137 | ||
bd89102f AD |
1138 | d_semctl_semid_ds (d_union_senum.U): |
1139 | This variable conditionally defines USE_SEMCTL_SEMID_DS, which | |
1140 | indicates that struct semid_ds * is to be used for semctl IPC_STAT. | |
1141 | ||
1142 | d_semctl_semun (d_union_senum.U): | |
1143 | This variable conditionally defines USE_SEMCTL_SEMUN, which | |
1144 | indicates that union semun is to be used for semctl IPC_STAT. | |
1145 | ||
dfe9444c AD |
1146 | d_semget (d_semget.U): |
1147 | This variable conditionally defines the HAS_SEMGET symbol, which | |
1148 | indicates to the C program that the semget() routine is available. | |
1149 | ||
1150 | d_semop (d_semop.U): | |
1151 | This variable conditionally defines the HAS_SEMOP symbol, which | |
1152 | indicates to the C program that the semop() routine is available. | |
1153 | ||
de4597cb JH |
1154 | d_sendmsg (d_socket.U): |
1155 | This variable conditionally defines the HAS_SENDMSG symbol, | |
1156 | which indicates that the sendmsg is supported. | |
1157 | ||
d7418ba7 | 1158 | d_setegid (d_setegid.U): |
1159 | This variable conditionally defines the HAS_SETEGID symbol, which | |
1160 | indicates to the C program that the setegid() routine is available | |
1161 | to change the effective gid of the current program. | |
1162 | ||
1163 | d_seteuid (d_seteuid.U): | |
1164 | This variable conditionally defines the HAS_SETEUID symbol, which | |
1165 | indicates to the C program that the seteuid() routine is available | |
1166 | to change the effective uid of the current program. | |
1167 | ||
93341792 AD |
1168 | d_setgrent (d_setgrent.U): |
1169 | This variable conditionally defines the HAS_SETGRENT symbol, which | |
1170 | indicates to the C program that the setgrent() routine is available | |
1171 | for initializing sequential access to the group database. | |
1172 | ||
dfe9444c AD |
1173 | d_setgrps (d_setgrps.U): |
1174 | This variable conditionally defines the HAS_SETGROUPS symbol, which | |
1175 | indicates to the C program that the setgroups() routine is available | |
1176 | to set the list of process groups. | |
1177 | ||
693762b4 AD |
1178 | d_sethent (d_sethent.U): |
1179 | This variable conditionally defines HAS_SETHOSTENT if sethostent() is | |
1180 | available. | |
1181 | ||
d7418ba7 | 1182 | d_setlinebuf (d_setlnbuf.U): |
1183 | This variable conditionally defines the HAS_SETLINEBUF symbol, which | |
1184 | indicates to the C program that the setlinebuf() routine is available | |
1185 | to change stderr or stdout from block-buffered or unbuffered to a | |
1186 | line-buffered mode. | |
1187 | ||
1188 | d_setlocale (d_setlocale.U): | |
1189 | This variable conditionally defines HAS_SETLOCALE if setlocale() is | |
1190 | available to handle locale-specific ctype implementations. | |
1191 | ||
e5c9fcd0 AD |
1192 | d_setnent (d_setnent.U): |
1193 | This variable conditionally defines HAS_SETNETENT if setnetent() is | |
1194 | available. | |
1195 | ||
1196 | d_setpent (d_setpent.U): | |
1197 | This variable conditionally defines HAS_SETPROTOENT if setprotoent() is | |
1198 | available. | |
1199 | ||
d7418ba7 | 1200 | d_setpgid (d_setpgid.U): |
dfe9444c AD |
1201 | This variable conditionally defines the HAS_SETPGID symbol if the |
1202 | setpgid(pid, gpid) function is available to set process group ID. | |
d7418ba7 | 1203 | |
1204 | d_setpgrp2 (d_setpgrp2.U): | |
1205 | This variable conditionally defines the HAS_SETPGRP2 symbol, which | |
1206 | indicates to the C program that the setpgrp2() (as in DG/UX) routine | |
1207 | is available to set the current process group. | |
1208 | ||
dfe9444c AD |
1209 | d_setpgrp (d_setpgrp.U): |
1210 | This variable conditionally defines HAS_SETPGRP if setpgrp() is | |
1211 | available to set the current process group. | |
1212 | ||
d7418ba7 | 1213 | d_setprior (d_setprior.U): |
1214 | This variable conditionally defines HAS_SETPRIORITY if setpriority() | |
1215 | is available to set a process's priority. | |
1216 | ||
93341792 AD |
1217 | d_setpwent (d_setpwent.U): |
1218 | This variable conditionally defines the HAS_SETPWENT symbol, which | |
1219 | indicates to the C program that the setpwent() routine is available | |
1220 | for initializing sequential access to the passwd database. | |
1221 | ||
d7418ba7 | 1222 | d_setregid (d_setregid.U): |
1223 | This variable conditionally defines HAS_SETREGID if setregid() is | |
1224 | available to change the real and effective gid of the current | |
1225 | process. | |
1226 | ||
1227 | d_setresgid (d_setregid.U): | |
1228 | This variable conditionally defines HAS_SETRESGID if setresgid() is | |
1229 | available to change the real, effective and saved gid of the current | |
1230 | process. | |
1231 | ||
1232 | d_setresuid (d_setreuid.U): | |
1233 | This variable conditionally defines HAS_SETREUID if setresuid() is | |
1234 | available to change the real, effective and saved uid of the current | |
1235 | process. | |
1236 | ||
1237 | d_setreuid (d_setreuid.U): | |
1238 | This variable conditionally defines HAS_SETREUID if setreuid() is | |
1239 | available to change the real and effective uid of the current | |
1240 | process. | |
1241 | ||
1242 | d_setrgid (d_setrgid.U): | |
1243 | This variable conditionally defines the HAS_SETRGID symbol, which | |
1244 | indicates to the C program that the setrgid() routine is available | |
1245 | to change the real gid of the current program. | |
1246 | ||
1247 | d_setruid (d_setruid.U): | |
1248 | This variable conditionally defines the HAS_SETRUID symbol, which | |
1249 | indicates to the C program that the setruid() routine is available | |
1250 | to change the real uid of the current program. | |
1251 | ||
e5c9fcd0 AD |
1252 | d_setsent (d_setsent.U): |
1253 | This variable conditionally defines HAS_SETSERVENT if setservent() is | |
1254 | available. | |
1255 | ||
d7418ba7 | 1256 | d_setsid (d_setsid.U): |
1257 | This variable conditionally defines HAS_SETSID if setsid() is | |
1258 | available to set the process group ID. | |
1259 | ||
e5c9fcd0 AD |
1260 | d_setvbuf (d_setvbuf.U): |
1261 | This variable conditionally defines the HAS_SETVBUF symbol, which | |
1262 | indicates to the C program that the setvbuf() routine is available | |
1263 | to change buffering on an open stdio stream. | |
1264 | ||
d7418ba7 | 1265 | d_sfio (d_sfio.U): |
1266 | This variable conditionally defines the USE_SFIO symbol, | |
1267 | and indicates whether sfio is available (and should be used). | |
1268 | ||
1269 | d_shm (d_shm.U): | |
1270 | This variable conditionally defines the HAS_SHM symbol, which | |
1271 | indicates that the entire shm*(2) library is present. | |
1272 | ||
dfe9444c AD |
1273 | d_shmat (d_shmat.U): |
1274 | This variable conditionally defines the HAS_SHMAT symbol, which | |
1275 | indicates to the C program that the shmat() routine is available. | |
1276 | ||
d7418ba7 | 1277 | d_shmatprototype (d_shmat.U): |
1278 | This variable conditionally defines the HAS_SHMAT_PROTOTYPE | |
1279 | symbol, which indicates that sys/shm.h has a prototype for | |
1280 | shmat. | |
1281 | ||
dfe9444c AD |
1282 | d_shmctl (d_shmctl.U): |
1283 | This variable conditionally defines the HAS_SHMCTL symbol, which | |
1284 | indicates to the C program that the shmctl() routine is available. | |
1285 | ||
1286 | d_shmdt (d_shmdt.U): | |
1287 | This variable conditionally defines the HAS_SHMDT symbol, which | |
1288 | indicates to the C program that the shmdt() routine is available. | |
1289 | ||
1290 | d_shmget (d_shmget.U): | |
1291 | This variable conditionally defines the HAS_SHMGET symbol, which | |
1292 | indicates to the C program that the shmget() routine is available. | |
1293 | ||
d7418ba7 | 1294 | d_sigaction (d_sigaction.U): |
1295 | This variable conditionally defines the HAS_SIGACTION symbol, which | |
1296 | indicates that the Vr4 sigaction() routine is available. | |
1297 | ||
1298 | d_sigsetjmp (d_sigsetjmp.U): | |
1299 | This variable conditionally defines the HAS_SIGSETJMP symbol, | |
1300 | which indicates that the sigsetjmp() routine is available to | |
1301 | call setjmp() and optionally save the process's signal mask. | |
1302 | ||
1303 | d_socket (d_socket.U): | |
1304 | This variable conditionally defines HAS_SOCKET, which indicates | |
1305 | that the BSD socket interface is supported. | |
1306 | ||
1307 | d_sockpair (d_socket.U): | |
1308 | This variable conditionally defines the HAS_SOCKETPAIR symbol, which | |
1309 | indicates that the BSD socketpair() is supported. | |
1310 | ||
921b2963 JH |
1311 | d_stat64 (io64.U): |
1312 | This variable conditionally defines the HAS_STAT64 symbol, which | |
1313 | indicates to the C program that the stat64() routine is available. | |
1314 | ||
d7418ba7 | 1315 | d_statblks (d_statblks.U): |
921b2963 JH |
1316 | This variable conditionally defines USE_STAT_BLOCKS |
1317 | if this system has a stat structure declaring | |
1318 | st_blksize and st_blocks. | |
d7418ba7 | 1319 | |
732c9516 JH |
1320 | d_statfs (d_statfs.U): |
1321 | This variable conditionally defines the HAS_STATFS symbol, which | |
1322 | indicates to the C program that the statfs() routine is available. | |
1323 | ||
1324 | d_statfsflags (d_statfs.U): | |
1325 | This variable conditionally defines the HAS_STRUCT_STATFS_FLAGS | |
1326 | symbol, which indicates to struct statfs from has f_flags member. | |
1327 | This kind of struct statfs is coming from sys/mount.h (BSD), | |
1328 | not from sys/statfs.h (SYSV). | |
1329 | ||
1330 | d_statvfs (d_statvfs.U): | |
1331 | This variable conditionally defines the HAS_STATVFS symbol, which | |
1332 | indicates to the C program that the statvfs() routine is available. | |
1333 | ||
d7418ba7 | 1334 | d_stdio_cnt_lval (d_stdstdio.U): |
1335 | This variable conditionally defines STDIO_CNT_LVALUE if the | |
1336 | FILE_cnt macro can be used as an lvalue. | |
1337 | ||
1338 | d_stdio_ptr_lval (d_stdstdio.U): | |
1339 | This variable conditionally defines STDIO_PTR_LVALUE if the | |
1340 | FILE_ptr macro can be used as an lvalue. | |
1341 | ||
1342 | d_stdiobase (d_stdstdio.U): | |
1343 | This variable conditionally defines USE_STDIO_BASE if this system | |
1344 | has a FILE structure declaring a usable _base field (or equivalent) | |
1345 | in stdio.h. | |
1346 | ||
1347 | d_stdstdio (d_stdstdio.U): | |
1348 | This variable conditionally defines USE_STDIO_PTR if this system | |
1349 | has a FILE structure declaring usable _ptr and _cnt fields (or | |
1350 | equivalent) in stdio.h. | |
1351 | ||
921b2963 JH |
1352 | d_store64 (dbm64.U): |
1353 | This variable conditionally defines the HAS_STORE64 symbol, which | |
1354 | indicates to the C program that the store64() routine is available. | |
1355 | ||
d7418ba7 | 1356 | d_strchr (d_strchr.U): |
1357 | This variable conditionally defines HAS_STRCHR if strchr() and | |
1358 | strrchr() are available for string searching. | |
1359 | ||
1360 | d_strcoll (d_strcoll.U): | |
1361 | This variable conditionally defines HAS_STRCOLL if strcoll() is | |
1362 | available to compare strings using collating information. | |
1363 | ||
1364 | d_strctcpy (d_strctcpy.U): | |
1365 | This variable conditionally defines the USE_STRUCT_COPY symbol, which | |
1366 | indicates to the C program that this C compiler knows how to copy | |
1367 | structures. | |
1368 | ||
1369 | d_strerrm (d_strerror.U): | |
1370 | This variable holds what Strerrr is defined as to translate an error | |
1371 | code condition into an error message string. It could be 'strerror' | |
1372 | or a more complex macro emulating strrror with sys_errlist[], or the | |
1373 | "unknown" string when both strerror and sys_errlist are missing. | |
1374 | ||
1375 | d_strerror (d_strerror.U): | |
1376 | This variable conditionally defines HAS_STRERROR if strerror() is | |
1377 | available to translate error numbers to strings. | |
1378 | ||
7e1af8bc | 1379 | d_strtod (d_strtod.U): |
1380 | This variable conditionally defines the HAS_STRTOD symbol, which | |
1381 | indicates to the C program that the strtod() routine is available | |
1382 | to provide better numeric string conversion than atof(). | |
1383 | ||
1384 | d_strtol (d_strtol.U): | |
1385 | This variable conditionally defines the HAS_STRTOL symbol, which | |
1386 | indicates to the C program that the strtol() routine is available | |
1387 | to provide better numeric string conversion than atoi() and friends. | |
1388 | ||
1389 | d_strtoul (d_strtoul.U): | |
1390 | This variable conditionally defines the HAS_STRTOUL symbol, which | |
1391 | indicates to the C program that the strtoul() routine is available | |
1392 | to provide conversion of strings to unsigned long. | |
1393 | ||
d7418ba7 | 1394 | d_strxfrm (d_strxfrm.U): |
1395 | This variable conditionally defines HAS_STRXFRM if strxfrm() is | |
1396 | available to transform strings. | |
1397 | ||
1398 | d_suidsafe (d_dosuid.U): | |
1399 | This variable conditionally defines SETUID_SCRIPTS_ARE_SECURE_NOW | |
1400 | if setuid scripts can be secure. This test looks in /dev/fd/. | |
1401 | ||
1402 | d_symlink (d_symlink.U): | |
1403 | This variable conditionally defines the HAS_SYMLINK symbol, which | |
1404 | indicates to the C program that the symlink() routine is available | |
1405 | to create symbolic links. | |
1406 | ||
1407 | d_syscall (d_syscall.U): | |
1408 | This variable conditionally defines HAS_SYSCALL if syscall() is | |
1409 | available call arbitrary system calls. | |
1410 | ||
1411 | d_sysconf (d_sysconf.U): | |
1412 | This variable conditionally defines the HAS_SYSCONF symbol, which | |
1413 | indicates to the C program that the sysconf() routine is available | |
1414 | to determine system related limits and options. | |
1415 | ||
dfe9444c AD |
1416 | d_sysernlst (d_strerror.U): |
1417 | This variable conditionally defines HAS_SYS_ERRNOLIST if sys_errnolist[] | |
1418 | is available to translate error numbers to the symbolic name. | |
1419 | ||
d7418ba7 | 1420 | d_syserrlst (d_strerror.U): |
1421 | This variable conditionally defines HAS_SYS_ERRLIST if sys_errlist[] is | |
1422 | available to translate error numbers to strings. | |
1423 | ||
1424 | d_system (d_system.U): | |
1425 | This variable conditionally defines HAS_SYSTEM if system() is | |
1426 | available to issue a shell command. | |
1427 | ||
1428 | d_tcgetpgrp (d_tcgtpgrp.U): | |
1429 | This variable conditionally defines the HAS_TCGETPGRP symbol, which | |
1430 | indicates to the C program that the tcgetpgrp() routine is available. | |
1431 | to get foreground process group ID. | |
1432 | ||
1433 | d_tcsetpgrp (d_tcstpgrp.U): | |
1434 | This variable conditionally defines the HAS_TCSETPGRP symbol, which | |
1435 | indicates to the C program that the tcsetpgrp() routine is available | |
1436 | to set foreground process group ID. | |
1437 | ||
921b2963 JH |
1438 | d_telldir64 (io64.U): |
1439 | This variable conditionally defines the HAS_TELLDIR64 symbol, which | |
1440 | indicates to the C program that the telldir64() routine is available. | |
1441 | ||
d7418ba7 | 1442 | d_telldir (d_readdir.U): |
1443 | This variable conditionally defines HAS_TELLDIR if telldir() is | |
1444 | available. | |
1445 | ||
732c9516 JH |
1446 | d_telldirproto (d_telldirproto.U): |
1447 | This variable conditionally defines the HAS_TELLDIR_PROTO symbol, | |
1448 | which indicates to the C program that the system provides | |
1449 | a prototype for the telldir() function. Otherwise, it is | |
1450 | up to the program to supply one. | |
1451 | ||
dfe9444c AD |
1452 | d_time (d_time.U): |
1453 | This variable conditionally defines the HAS_TIME symbol, which indicates | |
1454 | that the time() routine exists. The time() routine is normaly | |
1455 | provided on UNIX systems. | |
1456 | ||
d7418ba7 | 1457 | d_times (d_times.U): |
1458 | This variable conditionally defines the HAS_TIMES symbol, which indicates | |
1459 | that the times() routine exists. The times() routine is normaly | |
1460 | provided on UNIX systems. You may have to include <sys/times.h>. | |
1461 | ||
921b2963 JH |
1462 | d_tmpfile64 (stdio64.U): |
1463 | This variable conditionally defines the HAS_TMPFILE64 symbol, which | |
1464 | indicates to the C program that the tmpfile64() routine is available. | |
1465 | ||
1466 | d_truncate64 (io64.U): | |
1467 | This variable conditionally defines the HAS_TRUNCATE64 symbol, which | |
1468 | indicates to the C program that the truncate64() routine is available. | |
1469 | ||
d7418ba7 | 1470 | d_truncate (d_truncate.U): |
1471 | This variable conditionally defines HAS_TRUNCATE if truncate() is | |
1472 | available to truncate files. | |
1473 | ||
1474 | d_tzname (d_tzname.U): | |
1475 | This variable conditionally defines HAS_TZNAME if tzname[] is | |
1476 | available to access timezone names. | |
1477 | ||
1478 | d_umask (d_umask.U): | |
1479 | This variable conditionally defines the HAS_UMASK symbol, which | |
1480 | indicates to the C program that the umask() routine is available. | |
1481 | to set and get the value of the file creation mask. | |
1482 | ||
1483 | d_uname (d_gethname.U): | |
1484 | This variable conditionally defines the HAS_UNAME symbol, which | |
1485 | indicates to the C program that the uname() routine may be | |
1486 | used to derive the host name. | |
1487 | ||
bd89102f AD |
1488 | d_union_semun (d_union_senum.U): |
1489 | This variable conditionally defines HAS_UNION_SEMUN if the | |
1490 | union semun is defined by including <sys/sem.h>. | |
1491 | ||
d7418ba7 | 1492 | d_vfork (d_vfork.U): |
1493 | This variable conditionally defines the HAS_VFORK symbol, which | |
1494 | indicates the vfork() routine is available. | |
1495 | ||
1496 | d_void_closedir (d_closedir.U): | |
1497 | This variable conditionally defines VOID_CLOSEDIR if closedir() | |
1498 | does not return a value. | |
1499 | ||
dfe9444c AD |
1500 | d_voidsig (d_voidsig.U): |
1501 | This variable conditionally defines VOIDSIG if this system | |
1502 | declares "void (*signal(...))()" in signal.h. The old way was to | |
1503 | declare it as "int (*signal(...))()". | |
1504 | ||
1505 | d_voidtty (i_sysioctl.U): | |
1506 | This variable conditionally defines USE_IOCNOTTY to indicate that the | |
1507 | ioctl() call with TIOCNOTTY should be used to void tty association. | |
1508 | Otherwise (on USG probably), it is enough to close the standard file | |
1509 | decriptors and do a setpgrp(). | |
1510 | ||
d7418ba7 | 1511 | d_volatile (d_volatile.U): |
1512 | This variable conditionally defines the HASVOLATILE symbol, which | |
1513 | indicates to the C program that this C compiler knows about the | |
1514 | volatile declaration. | |
1515 | ||
1516 | d_vprintf (d_vprintf.U): | |
1517 | This variable conditionally defines the HAS_VPRINTF symbol, which | |
1518 | indicates to the C program that the vprintf() routine is available | |
1519 | to printf with a pointer to an argument list. | |
1520 | ||
1521 | d_wait4 (d_wait4.U): | |
1522 | This variable conditionally defines the HAS_WAIT4 symbol, which | |
1523 | indicates the wait4() routine is available. | |
1524 | ||
1525 | d_waitpid (d_waitpid.U): | |
1526 | This variable conditionally defines HAS_WAITPID if waitpid() is | |
1527 | available to wait for child process. | |
1528 | ||
1529 | d_wcstombs (d_wcstombs.U): | |
1530 | This variable conditionally defines the HAS_WCSTOMBS symbol, which | |
1531 | indicates to the C program that the wcstombs() routine is available | |
1532 | to convert wide character strings to multibyte strings. | |
1533 | ||
1534 | d_wctomb (d_wctomb.U): | |
1535 | This variable conditionally defines the HAS_WCTOMB symbol, which | |
1536 | indicates to the C program that the wctomb() routine is available | |
1537 | to convert a wide character to a multibyte. | |
1538 | ||
de4597cb JH |
1539 | d_writev (d_writev.U): |
1540 | This variable conditionally defines the HAS_WRITEV symbol, which | |
1541 | indicates to the C program that the writev() routine is available. | |
1542 | ||
dfe9444c AD |
1543 | d_xenix (Guess.U): |
1544 | This variable conditionally defines the symbol XENIX, which alerts | |
1545 | the C program that it runs under Xenix. | |
1546 | ||
3a6175e1 AD |
1547 | date (Loc.U): |
1548 | This variable is be used internally by Configure to determine the | |
1549 | full pathname (if any) of the date program. After Configure runs, | |
1550 | the value is reset to a plain "date" and is not useful. | |
1551 | ||
d7418ba7 | 1552 | db_hashtype (i_db.U): |
1553 | This variable contains the type of the hash structure element | |
1554 | in the <db.h> header file. In older versions of DB, it was | |
1555 | int, while in newer ones it is u_int32_t. | |
1556 | ||
1557 | db_prefixtype (i_db.U): | |
1558 | This variable contains the type of the prefix structure element | |
1559 | in the <db.h> header file. In older versions of DB, it was | |
1560 | int, while in newer ones it is size_t. | |
1561 | ||
732c9516 JH |
1562 | defvoidused (voidflags.U): |
1563 | This variable contains the default value of the VOIDUSED symbol (15). | |
1564 | ||
d7418ba7 | 1565 | direntrytype (i_dirent.U): |
1566 | This symbol is set to 'struct direct' or 'struct dirent' depending on | |
1567 | whether dirent is available or not. You should use this pseudo type to | |
1568 | portably declare your directory entries. | |
1569 | ||
1570 | dlext (dlext.U): | |
1571 | This variable contains the extension that is to be used for the | |
1572 | dynamically loaded modules that perl generaties. | |
1573 | ||
1574 | dlsrc (dlsrc.U): | |
1575 | This variable contains the name of the dynamic loading file that | |
1576 | will be used with the package. | |
1577 | ||
693762b4 AD |
1578 | doublesize (doublesize.U): |
1579 | This variable contains the value of the DOUBLESIZE symbol, which | |
1580 | indicates to the C program how many bytes there are in a double. | |
1581 | ||
921b2963 JH |
1582 | drand01 (randfunc.U): |
1583 | Indicates the macro to be used to generate normalized | |
1584 | random numbers. Uses randfunc, often divided by | |
1585 | (double) (((unsigned long) 1 << randbits)) in order to | |
1586 | normalize the result. | |
1587 | In C programs, the macro 'Drand01' is mapped to drand01. | |
1588 | ||
d7418ba7 | 1589 | dynamic_ext (Extensions.U): |
bfb7748a | 1590 | This variable holds a list of XS extension files we want to |
d7418ba7 | 1591 | link dynamically into the package. It is used by Makefile. |
1592 | ||
1593 | eagain (nblock_io.U): | |
1594 | This variable bears the symbolic errno code set by read() when no | |
1595 | data is present on the file and non-blocking I/O was enabled (otherwise, | |
1596 | read() blocks naturally). | |
1597 | ||
93341792 AD |
1598 | ebcdic (ebcdic.U): |
1599 | This variable conditionally defines EBCDIC if this | |
1600 | system uses EBCDIC encoding. Among other things, this | |
1601 | means that the character ranges are not contiguous. | |
1602 | See trnl.U | |
1603 | ||
3a6175e1 AD |
1604 | echo (Loc.U): |
1605 | This variable is be used internally by Configure to determine the | |
1606 | full pathname (if any) of the echo program. After Configure runs, | |
1607 | the value is reset to a plain "echo" and is not useful. | |
1608 | ||
1609 | egrep (Loc.U): | |
1610 | This variable is be used internally by Configure to determine the | |
1611 | full pathname (if any) of the egrep program. After Configure runs, | |
1612 | the value is reset to a plain "egrep" and is not useful. | |
1613 | ||
1614 | emacs (Loc.U): | |
1615 | This variable is defined but not used by Configure. | |
1616 | The value is a plain '' and is not useful. | |
1617 | ||
d7418ba7 | 1618 | eunicefix (Init.U): |
1619 | When running under Eunice this variable contains a command which will | |
1620 | convert a shell script to the proper form of text file for it to be | |
1621 | executable by the shell. On other systems it is a no-op. | |
1622 | ||
1623 | exe_ext (Unix.U): | |
dfe9444c AD |
1624 | This is an old synonym for _exe. |
1625 | ||
3a6175e1 AD |
1626 | expr (Loc.U): |
1627 | This variable is be used internally by Configure to determine the | |
1628 | full pathname (if any) of the expr program. After Configure runs, | |
1629 | the value is reset to a plain "expr" and is not useful. | |
1630 | ||
dfe9444c | 1631 | extensions (Extensions.U): |
bfb7748a AD |
1632 | This variable holds a list of all extension files (both XS and |
1633 | non-xs linked into the package. It is propagated to Config.pm | |
dfe9444c AD |
1634 | and is typically used to test whether a particular extesion |
1635 | is available. | |
d7418ba7 | 1636 | |
3a6175e1 | 1637 | find (Loc.U): |
921b2963 JH |
1638 | This variable is defined but not used by Configure. |
1639 | The value is a plain '' and is not useful. | |
3a6175e1 | 1640 | |
d7418ba7 | 1641 | firstmakefile (Unix.U): |
1642 | This variable defines the first file searched by make. On unix, | |
1643 | it is makefile (then Makefile). On case-insensitive systems, | |
1644 | it might be something else. This is only used to deal with | |
1645 | convoluted make depend tricks. | |
1646 | ||
3a6175e1 AD |
1647 | flex (Loc.U): |
1648 | This variable is defined but not used by Configure. | |
1649 | The value is a plain '' and is not useful. | |
1650 | ||
d7418ba7 | 1651 | fpostype (fpostype.U): |
1652 | This variable defines Fpos_t to be something like fpost_t, long, | |
1653 | uint, or whatever type is used to declare file positions in libc. | |
1654 | ||
1655 | freetype (mallocsrc.U): | |
1656 | This variable contains the return type of free(). It is usually | |
1657 | void, but occasionally int. | |
1658 | ||
732c9516 JH |
1659 | full_ar (Loc_ar.U): |
1660 | This variable contains the full pathname to 'ar', whether or | |
1661 | not the user has specified 'portability'. This is only used | |
1662 | in the Makefile.SH. | |
1663 | ||
d7418ba7 | 1664 | full_csh (d_csh.U): |
1665 | This variable contains the full pathname to 'csh', whether or | |
1666 | not the user has specified 'portability'. This is only used | |
1667 | in the compiled C program, and we assume that all systems which | |
1668 | can share this executable will have the same full pathname to | |
1669 | 'csh.' | |
1670 | ||
1671 | full_sed (Loc_sed.U): | |
1672 | This variable contains the full pathname to 'sed', whether or | |
1673 | not the user has specified 'portability'. This is only used | |
1674 | in the compiled C program, and we assume that all systems which | |
1675 | can share this executable will have the same full pathname to | |
1676 | 'sed.' | |
1677 | ||
dfe9444c AD |
1678 | gccversion (cc.U): |
1679 | If GNU cc (gcc) is used, this variable holds '1' or '2' to | |
1680 | indicate whether the compiler is version 1 or 2. This is used in | |
1681 | setting some of the default cflags. It is set to '' if not gcc. | |
1682 | ||
d7418ba7 | 1683 | gidtype (gidtype.U): |
1684 | This variable defines Gid_t to be something like gid_t, int, | |
1685 | ushort, or whatever type is used to declare the return type | |
1686 | of getgid(). Typically, it is the type of group ids in the kernel. | |
1687 | ||
732c9516 JH |
1688 | glibpth (libpth.U): |
1689 | This variable holds the general path (space-separated) used to | |
1690 | find libraries. It may contain directories that do not exist on | |
1691 | this platform, libpth is the cleaned-up version. | |
1692 | ||
3a6175e1 AD |
1693 | grep (Loc.U): |
1694 | This variable is be used internally by Configure to determine the | |
1695 | full pathname (if any) of the grep program. After Configure runs, | |
1696 | the value is reset to a plain "grep" and is not useful. | |
1697 | ||
dfe9444c AD |
1698 | groupcat (nis.U): |
1699 | This variable contains a command that produces the text of the | |
1700 | /etc/group file. This is normally "cat /etc/group", but can be | |
1701 | "ypcat group" when NIS is used. | |
1702 | ||
d7418ba7 | 1703 | groupstype (groupstype.U): |
1704 | This variable defines Groups_t to be something like gid_t, int, | |
1705 | ushort, or whatever type is used for the second argument to | |
dfe9444c AD |
1706 | getgroups() and setgroups(). Usually, this is the same as |
1707 | gidtype (gid_t), but sometimes it isn't. | |
1708 | ||
3a6175e1 AD |
1709 | gzip (Loc.U): |
1710 | This variable is be used internally by Configure to determine the | |
1711 | full pathname (if any) of the gzip program. After Configure runs, | |
1712 | the value is reset to a plain "gzip" and is not useful. | |
1713 | ||
dfe9444c AD |
1714 | h_fcntl (h_fcntl.U): |
1715 | This is variable gets set in various places to tell i_fcntl that | |
1716 | <fcntl.h> should be included. | |
1717 | ||
1718 | h_sysfile (h_sysfile.U): | |
1719 | This is variable gets set in various places to tell i_sys_file that | |
1720 | <sys/file.h> should be included. | |
1721 | ||
1722 | hint (Oldconfig.U): | |
1723 | Gives the type of hints used for previous answers. May be one of | |
1724 | "default", "recommended" or "previous". | |
1725 | ||
1726 | hostcat (nis.U): | |
1727 | This variable contains a command that produces the text of the | |
1728 | /etc/hosts file. This is normally "cat /etc/hosts", but can be | |
1729 | "ypcat hosts" when NIS is used. | |
1730 | ||
1731 | huge (models.U): | |
1732 | This variable contains a flag which will tell the C compiler and loader | |
1733 | to produce a program running with a huge memory model. If the | |
1734 | huge model is not supported, contains the flag to produce large | |
1735 | model programs. It is up to the Makefile to use this. | |
1736 | ||
93341792 AD |
1737 | i_arpainet (i_arpainet.U): |
1738 | This variable conditionally defines the I_ARPA_INET symbol, | |
1739 | and indicates whether a C program should include <arpa/inet.h>. | |
1740 | ||
dfe9444c AD |
1741 | i_bsdioctl (i_sysioctl.U): |
1742 | This variable conditionally defines the I_SYS_BSDIOCTL symbol, which | |
1743 | indicates to the C program that <sys/bsdioctl.h> exists and should | |
1744 | be included. | |
1745 | ||
1746 | i_db (i_db.U): | |
1747 | This variable conditionally defines the I_DB symbol, and indicates | |
1748 | whether a C program may include Berkeley's DB include file <db.h>. | |
d7418ba7 | 1749 | |
dc45a647 MB |
1750 | i_dbm (i_dbm.U): |
1751 | This variable conditionally defines the I_DBM symbol, which | |
1752 | indicates to the C program that <dbm.h> exists and should | |
1753 | be included. | |
1754 | ||
d7418ba7 | 1755 | i_dirent (i_dirent.U): |
1756 | This variable conditionally defines I_DIRENT, which indicates | |
1757 | to the C program that it should include <dirent.h>. | |
1758 | ||
dfe9444c AD |
1759 | i_dld (i_dld.U): |
1760 | This variable conditionally defines the I_DLD symbol, which | |
1761 | indicates to the C program that <dld.h> (GNU dynamic loading) | |
1762 | exists and should be included. | |
1763 | ||
d7418ba7 | 1764 | i_dlfcn (i_dlfcn.U): |
1765 | This variable conditionally defines the I_DLFCN symbol, which | |
1766 | indicates to the C program that <dlfcn.h> exists and should | |
1767 | be included. | |
1768 | ||
1769 | i_fcntl (i_fcntl.U): | |
1770 | This variable controls the value of I_FCNTL (which tells | |
1771 | the C program to include <fcntl.h>). | |
1772 | ||
1773 | i_float (i_float.U): | |
1774 | This variable conditionally defines the I_FLOAT symbol, and indicates | |
1775 | whether a C program may include <float.h> to get symbols like DBL_MAX | |
1776 | or DBL_MIN, i.e. machine dependent floating point values. | |
1777 | ||
dc45a647 MB |
1778 | i_gdbm (i_gdbm.U): |
1779 | This variable conditionally defines the I_GDBM symbol, which | |
1780 | indicates to the C program that <gdbm.h> exists and should | |
1781 | be included. | |
1782 | ||
d7418ba7 | 1783 | i_grp (i_grp.U): |
1784 | This variable conditionally defines the I_GRP symbol, and indicates | |
1785 | whether a C program should include <grp.h>. | |
1786 | ||
921b2963 | 1787 | i_inttypes (i_inttypes.U): |
ccc7f9b3 KS |
1788 | This variable conditionally defines the I_INTTYPES symbol, |
1789 | and indicates whether a C program should include <inttypes.h>. | |
921b2963 | 1790 | |
d7418ba7 | 1791 | i_limits (i_limits.U): |
1792 | This variable conditionally defines the I_LIMITS symbol, and indicates | |
1793 | whether a C program may include <limits.h> to get symbols like WORD_BIT | |
1794 | and friends. | |
1795 | ||
1796 | i_locale (i_locale.U): | |
1797 | This variable conditionally defines the I_LOCALE symbol, | |
1798 | and indicates whether a C program should include <locale.h>. | |
1799 | ||
921b2963 | 1800 | i_machcthr (i_machcthr.U): |
ccc7f9b3 KS |
1801 | This variable conditionally defines the I_MACH_CTHREADS symbol, |
1802 | and indicates whether a C program should include <mach/cthreads.h>. | |
921b2963 | 1803 | |
dfe9444c AD |
1804 | i_malloc (i_malloc.U): |
1805 | This variable conditionally defines the I_MALLOC symbol, and indicates | |
1806 | whether a C program should include <malloc.h>. | |
1807 | ||
d7418ba7 | 1808 | i_math (i_math.U): |
1809 | This variable conditionally defines the I_MATH symbol, and indicates | |
1810 | whether a C program may include <math.h>. | |
1811 | ||
1812 | i_memory (i_memory.U): | |
1813 | This variable conditionally defines the I_MEMORY symbol, and indicates | |
1814 | whether a C program should include <memory.h>. | |
1815 | ||
732c9516 JH |
1816 | i_mntent (i_mntent.U): |
1817 | This variable conditionally defines the I_MNTENT symbol, and indicates | |
1818 | whether a C program should include <mntent.h>. | |
1819 | ||
dc45a647 MB |
1820 | i_ndbm (i_ndbm.U): |
1821 | This variable conditionally defines the I_NDBM symbol, which | |
1822 | indicates to the C program that <ndbm.h> exists and should | |
1823 | be included. | |
1824 | ||
dfe9444c AD |
1825 | i_netdb (i_netdb.U): |
1826 | This variable conditionally defines the I_NETDB symbol, and indicates | |
1827 | whether a C program should include <netdb.h>. | |
1828 | ||
d7418ba7 | 1829 | i_neterrno (i_neterrno.U): |
1830 | This variable conditionally defines the I_NET_ERRNO symbol, which | |
1831 | indicates to the C program that <net/errno.h> exists and should | |
1832 | be included. | |
1833 | ||
1834 | i_niin (i_niin.U): | |
1835 | This variable conditionally defines I_NETINET_IN, which indicates | |
1836 | to the C program that it should include <netinet/in.h>. Otherwise, | |
1837 | you may try <sys/in.h>. | |
1838 | ||
5b34fd99 JH |
1839 | i_poll (i_poll.U): |
1840 | This variable conditionally defines the I_POLL symbol, and indicates | |
1841 | whether a C program should include <poll.h>. | |
1842 | ||
d7418ba7 | 1843 | i_pwd (i_pwd.U): |
1844 | This variable conditionally defines I_PWD, which indicates | |
1845 | to the C program that it should include <pwd.h>. | |
1846 | ||
1847 | i_rpcsvcdbm (i_dbm.U): | |
1848 | This variable conditionally defines the I_RPCSVC_DBM symbol, which | |
1849 | indicates to the C program that <rpcsvc/dbm.h> exists and should | |
1850 | be included. Some System V systems might need this instead of <dbm.h>. | |
1851 | ||
1852 | i_sfio (i_sfio.U): | |
1853 | This variable conditionally defines the I_SFIO symbol, | |
1854 | and indicates whether a C program should include <sfio.h>. | |
1855 | ||
1856 | i_sgtty (i_termio.U): | |
1857 | This variable conditionally defines the I_SGTTY symbol, which | |
1858 | indicates to the C program that it should include <sgtty.h> rather | |
1859 | than <termio.h>. | |
1860 | ||
1861 | i_stdarg (i_varhdr.U): | |
1862 | This variable conditionally defines the I_STDARG symbol, which | |
1863 | indicates to the C program that <stdarg.h> exists and should | |
1864 | be included. | |
1865 | ||
1866 | i_stddef (i_stddef.U): | |
1867 | This variable conditionally defines the I_STDDEF symbol, which | |
1868 | indicates to the C program that <stddef.h> exists and should | |
1869 | be included. | |
1870 | ||
1871 | i_stdlib (i_stdlib.U): | |
1872 | This variable conditionally defines the I_STDLIB symbol, which | |
1873 | indicates to the C program that <stdlib.h> exists and should | |
1874 | be included. | |
1875 | ||
1876 | i_string (i_string.U): | |
1877 | This variable conditionally defines the I_STRING symbol, which | |
1878 | indicates that <string.h> should be included rather than <strings.h>. | |
1879 | ||
921b2963 | 1880 | i_sysaccess (i_sysaccess.U): |
ccc7f9b3 KS |
1881 | This variable conditionally defines the I_SYS_ACCESS symbol, |
1882 | and indicates whether a C program should include <sys/access.h>. | |
921b2963 | 1883 | |
d7418ba7 | 1884 | i_sysdir (i_sysdir.U): |
1885 | This variable conditionally defines the I_SYS_DIR symbol, and indicates | |
1886 | whether a C program should include <sys/dir.h>. | |
1887 | ||
1888 | i_sysfile (i_sysfile.U): | |
1889 | This variable conditionally defines the I_SYS_FILE symbol, and indicates | |
1890 | whether a C program should include <sys/file.h> to get R_OK and friends. | |
1891 | ||
dfe9444c AD |
1892 | i_sysfilio (i_sysioctl.U): |
1893 | This variable conditionally defines the I_SYS_FILIO symbol, which | |
1894 | indicates to the C program that <sys/filio.h> exists and should | |
1895 | be included in preference to <sys/ioctl.h>. | |
1896 | ||
1897 | i_sysin (i_niin.U): | |
1898 | This variable conditionally defines I_SYS_IN, which indicates | |
1899 | to the C program that it should include <sys/in.h> instead of | |
1900 | <netinet/in.h>. | |
1901 | ||
d7418ba7 | 1902 | i_sysioctl (i_sysioctl.U): |
1903 | This variable conditionally defines the I_SYS_IOCTL symbol, which | |
1904 | indicates to the C program that <sys/ioctl.h> exists and should | |
1905 | be included. | |
1906 | ||
732c9516 JH |
1907 | i_sysmman (i_sysmman.U): |
1908 | This variable conditionally defines the I_SYS_MMAN symbol, and | |
1909 | indicates whether a C program should include <sys/mman.h>. | |
1910 | ||
1911 | i_sysmount (i_sysmount.U): | |
1912 | This variable conditionally defines the I_SYSMOUNT symbol, | |
1913 | and indicates whether a C program should include <sys/mount.h>. | |
1914 | ||
d7418ba7 | 1915 | i_sysndir (i_sysndir.U): |
1916 | This variable conditionally defines the I_SYS_NDIR symbol, and indicates | |
1917 | whether a C program should include <sys/ndir.h>. | |
1918 | ||
1919 | i_sysparam (i_sysparam.U): | |
1920 | This variable conditionally defines the I_SYS_PARAM symbol, and indicates | |
1921 | whether a C program should include <sys/param.h>. | |
1922 | ||
1923 | i_sysresrc (i_sysresrc.U): | |
1924 | This variable conditionally defines the I_SYS_RESOURCE symbol, | |
1925 | and indicates whether a C program should include <sys/resource.h>. | |
1926 | ||
921b2963 | 1927 | i_syssecrt (i_syssecrt.U): |
ccc7f9b3 KS |
1928 | This variable conditionally defines the I_SYS_SECURITY symbol, |
1929 | and indicates whether a C program should include <sys/security.h>. | |
921b2963 | 1930 | |
d7418ba7 | 1931 | i_sysselct (i_sysselct.U): |
1932 | This variable conditionally defines I_SYS_SELECT, which indicates | |
1933 | to the C program that it should include <sys/select.h> in order to | |
1934 | get the definition of struct timeval. | |
1935 | ||
dfe9444c AD |
1936 | i_syssockio (i_sysioctl.U): |
1937 | This variable conditionally defines I_SYS_SOCKIO to indicate to the | |
1938 | C program that socket ioctl codes may be found in <sys/sockio.h> | |
1939 | instead of <sys/ioctl.h>. | |
1940 | ||
d7418ba7 | 1941 | i_sysstat (i_sysstat.U): |
1942 | This variable conditionally defines the I_SYS_STAT symbol, | |
1943 | and indicates whether a C program should include <sys/stat.h>. | |
1944 | ||
732c9516 JH |
1945 | i_sysstatvfs (i_sysstatvfs.U): |
1946 | This variable conditionally defines the I_SYSSTATVFS symbol, | |
1947 | and indicates whether a C program should include <sys/statvfs.h>. | |
1948 | ||
d7418ba7 | 1949 | i_systime (i_time.U): |
1950 | This variable conditionally defines I_SYS_TIME, which indicates | |
1951 | to the C program that it should include <sys/time.h>. | |
1952 | ||
1953 | i_systimek (i_time.U): | |
1954 | This variable conditionally defines I_SYS_TIME_KERNEL, which | |
1955 | indicates to the C program that it should include <sys/time.h> | |
1956 | with KERNEL defined. | |
1957 | ||
1958 | i_systimes (i_systimes.U): | |
1959 | This variable conditionally defines the I_SYS_TIMES symbol, and indicates | |
1960 | whether a C program should include <sys/times.h>. | |
1961 | ||
1962 | i_systypes (i_systypes.U): | |
1963 | This variable conditionally defines the I_SYS_TYPES symbol, | |
1964 | and indicates whether a C program should include <sys/types.h>. | |
1965 | ||
de4597cb JH |
1966 | i_sysuio (i_sysuio.U): |
1967 | This variable conditionally defines the I_SYSUIO symbol, and indicates | |
1968 | whether a C program should include <sys/uio.h>. | |
1969 | ||
d7418ba7 | 1970 | i_sysun (i_sysun.U): |
1971 | This variable conditionally defines I_SYS_UN, which indicates | |
1972 | to the C program that it should include <sys/un.h> to get UNIX | |
1973 | domain socket definitions. | |
1974 | ||
1975 | i_syswait (i_syswait.U): | |
1976 | This variable conditionally defines I_SYS_WAIT, which indicates | |
1977 | to the C program that it should include <sys/wait.h>. | |
1978 | ||
1979 | i_termio (i_termio.U): | |
1980 | This variable conditionally defines the I_TERMIO symbol, which | |
1981 | indicates to the C program that it should include <termio.h> rather | |
1982 | than <sgtty.h>. | |
1983 | ||
1984 | i_termios (i_termio.U): | |
1985 | This variable conditionally defines the I_TERMIOS symbol, which | |
1986 | indicates to the C program that the POSIX <termios.h> file is | |
1987 | to be included. | |
1988 | ||
1989 | i_time (i_time.U): | |
1990 | This variable conditionally defines I_TIME, which indicates | |
1991 | to the C program that it should include <time.h>. | |
1992 | ||
1993 | i_unistd (i_unistd.U): | |
1994 | This variable conditionally defines the I_UNISTD symbol, and indicates | |
1995 | whether a C program should include <unistd.h>. | |
1996 | ||
1997 | i_utime (i_utime.U): | |
1998 | This variable conditionally defines the I_UTIME symbol, and indicates | |
1999 | whether a C program should include <utime.h>. | |
2000 | ||
2001 | i_values (i_values.U): | |
2002 | This variable conditionally defines the I_VALUES symbol, and indicates | |
2003 | whether a C program may include <values.h> to get symbols like MAXLONG | |
2004 | and friends. | |
2005 | ||
2006 | i_varargs (i_varhdr.U): | |
2007 | This variable conditionally defines I_VARARGS, which indicates | |
2008 | to the C program that it should include <varargs.h>. | |
2009 | ||
2010 | i_varhdr (i_varhdr.U): | |
2011 | Contains the name of the header to be included to get va_dcl definition. | |
2012 | Typically one of varargs.h or stdarg.h. | |
2013 | ||
2014 | i_vfork (i_vfork.U): | |
2015 | This variable conditionally defines the I_VFORK symbol, and indicates | |
2016 | whether a C program should include vfork.h. | |
2017 | ||
921b2963 JH |
2018 | ignore_versioned_solibs (libs.U): |
2019 | This variable should be non-empty if non-versioned shared | |
2020 | libraries (libfoo.so.x.y) are to be ignored (because they | |
2021 | cannot be linked against). | |
2022 | ||
dfe9444c AD |
2023 | incpath (usrinc.U): |
2024 | This variable must preceed the normal include path to get hte | |
2025 | right one, as in "$incpath/usr/include" or "$incpath/usr/lib". | |
2026 | Value can be "" or "/bsd43" on mips. | |
2027 | ||
3a6175e1 AD |
2028 | inews (Loc.U): |
2029 | This variable is defined but not used by Configure. | |
2030 | The value is a plain '' and is not useful. | |
2031 | ||
dfe9444c AD |
2032 | installarchlib (archlib.U): |
2033 | This variable is really the same as archlibexp but may differ on | |
2034 | those systems using AFS. For extra portability, only this variable | |
2035 | should be used in makefiles. | |
2036 | ||
d7418ba7 | 2037 | installbin (bin.U): |
2038 | This variable is the same as binexp unless AFS is running in which case | |
2039 | the user is explicitely prompted for it. This variable should always | |
2040 | be used in your makefiles for maximum portability. | |
2041 | ||
dfe9444c AD |
2042 | installman1dir (man1dir.U): |
2043 | This variable is really the same as man1direxp, unless you are using | |
2044 | AFS in which case it points to the read/write location whereas | |
2045 | man1direxp only points to the read-only access location. For extra | |
2046 | portability, you should only use this variable within your makefiles. | |
2047 | ||
2048 | installman3dir (man3dir.U): | |
2049 | This variable is really the same as man3direxp, unless you are using | |
2050 | AFS in which case it points to the read/write location whereas | |
2051 | man3direxp only points to the read-only access location. For extra | |
2052 | portability, you should only use this variable within your makefiles. | |
2053 | ||
d7418ba7 | 2054 | installprivlib (privlib.U): |
2055 | This variable is really the same as privlibexp but may differ on | |
2056 | those systems using AFS. For extra portability, only this variable | |
2057 | should be used in makefiles. | |
2058 | ||
dfe9444c AD |
2059 | installscript (scriptdir.U): |
2060 | This variable is usually the same as scriptdirexp, unless you are on | |
2061 | a system running AFS, in which case they may differ slightly. You | |
2062 | should always use this variable within your makefiles for portability. | |
2063 | ||
2064 | installsitearch (sitearch.U): | |
2065 | This variable is really the same as sitearchexp but may differ on | |
2066 | those systems using AFS. For extra portability, only this variable | |
2067 | should be used in makefiles. | |
2068 | ||
2069 | installsitelib (sitelib.U): | |
2070 | This variable is really the same as sitelibexp but may differ on | |
2071 | those systems using AFS. For extra portability, only this variable | |
2072 | should be used in makefiles. | |
2073 | ||
732c9516 JH |
2074 | installusrbinperl (instubperl.U): |
2075 | This variable tells whether Perl should be installed also as | |
2076 | /usr/bin/perl in addition to | |
2077 | $installbin/perl | |
2078 | ||
d7418ba7 | 2079 | intsize (intsize.U): |
dfe9444c AD |
2080 | This variable contains the value of the INTSIZE symbol, which |
2081 | indicates to the C program how many bytes there are in an int. | |
2082 | ||
2083 | known_extensions (Extensions.U): | |
bfb7748a | 2084 | This variable holds a list of all XS extensions included in |
dfe9444c | 2085 | the package. |
d7418ba7 | 2086 | |
3a6175e1 AD |
2087 | ksh (Loc.U): |
2088 | This variable is defined but not used by Configure. | |
2089 | The value is a plain '' and is not useful. | |
2090 | ||
d7418ba7 | 2091 | large (models.U): |
2092 | This variable contains a flag which will tell the C compiler and loader | |
2093 | to produce a program running with a large memory model. It is up to | |
2094 | the Makefile to use this. | |
2095 | ||
2096 | ld (dlsrc.U): | |
2097 | This variable indicates the program to be used to link | |
2098 | libraries for dynamic loading. On some systems, it is 'ld'. | |
2099 | On ELF systems, it should be $cc. Mostly, we'll try to respect | |
2100 | the hint file setting. | |
2101 | ||
2102 | lddlflags (dlsrc.U): | |
2103 | This variable contains any special flags that might need to be | |
2104 | passed to $ld to create a shared library suitable for dynamic | |
2105 | loading. It is up to the makefile to use it. For hpux, it | |
fb87c415 | 2106 | should be '-b'. For sunos 4.1, it is empty. |
d7418ba7 | 2107 | |
2108 | ldflags (ccflags.U): | |
2109 | This variable contains any additional C loader flags desired by | |
2110 | the user. It is up to the Makefile to use this. | |
2111 | ||
3a6175e1 AD |
2112 | less (Loc.U): |
2113 | This variable is be used internally by Configure to determine the | |
2114 | full pathname (if any) of the less program. After Configure runs, | |
2115 | the value is reset to a plain "less" and is not useful. | |
2116 | ||
d7418ba7 | 2117 | lib_ext (Unix.U): |
dfe9444c AD |
2118 | This is an old synonym for _a. |
2119 | ||
2120 | libc (libc.U): | |
2121 | This variable contains the location of the C library. | |
d7418ba7 | 2122 | |
2123 | libperl (libperl.U): | |
2124 | The perl executable is obtained by linking perlmain.c with | |
2125 | libperl, any static extensions (usually just DynaLoader), | |
2126 | and any other libraries needed on this system. libperl | |
2127 | is usually libperl.a, but can also be libperl.so.xxx if | |
2128 | the user wishes to build a perl executable with a shared | |
2129 | library. | |
2130 | ||
dfe9444c | 2131 | libpth (libpth.U): |
732c9516 JH |
2132 | This variable holds the general path (space-separated) used to find |
2133 | libraries. It is intended to be used by other units. | |
dfe9444c | 2134 | |
d7418ba7 | 2135 | libs (libs.U): |
2136 | This variable holds the additional libraries we want to use. | |
2137 | It is up to the Makefile to deal with it. | |
2138 | ||
dfe9444c AD |
2139 | libswanted (Myinit.U): |
2140 | This variable holds a list of all the libraries we want to | |
2141 | search. The order is chosen to pick up the c library | |
2142 | ahead of ucb or bsd libraries for SVR4. | |
2143 | ||
3a6175e1 | 2144 | line (Loc.U): |
921b2963 JH |
2145 | This variable is defined but not used by Configure. |
2146 | The value is a plain '' and is not useful. | |
3a6175e1 AD |
2147 | |
2148 | lint (Loc.U): | |
2149 | This variable is defined but not used by Configure. | |
2150 | The value is a plain '' and is not useful. | |
2151 | ||
dfe9444c AD |
2152 | lkflags (ccflags.U): |
2153 | This variable contains any additional C partial linker flags desired by | |
2154 | the user. It is up to the Makefile to use this. | |
2155 | ||
3a6175e1 AD |
2156 | ln (Loc.U): |
2157 | This variable is be used internally by Configure to determine the | |
2158 | full pathname (if any) of the ln program. After Configure runs, | |
2159 | the value is reset to a plain "ln" and is not useful. | |
2160 | ||
d7418ba7 | 2161 | lns (lns.U): |
2162 | This variable holds the name of the command to make | |
2163 | symbolic links (if they are supported). It can be used | |
2164 | in the Makefile. It is either 'ln -s' or 'ln' | |
2165 | ||
dfe9444c AD |
2166 | locincpth (ccflags.U): |
2167 | This variable contains a list of additional directories to be | |
fb87c415 | 2168 | searched by the compiler. The appropriate '-I' directives will |
dfe9444c AD |
2169 | be added to ccflags. This is intended to simplify setting |
2170 | local directories from the Configure command line. | |
2171 | It's not much, but it parallels the loclibpth stuff in libpth.U. | |
2172 | ||
2173 | loclibpth (libpth.U): | |
732c9516 JH |
2174 | This variable holds the paths (space-separated) used to find local |
2175 | libraries. It is prepended to libpth, and is intended to be easily | |
2176 | set from the command line. | |
dfe9444c | 2177 | |
e5c9fcd0 AD |
2178 | longdblsize (d_longdbl.U): |
2179 | This variable contains the value of the LONG_DOUBLESIZE symbol, which | |
2180 | indicates to the C program how many bytes there are in a long double, | |
2181 | if this system supports long doubles. | |
2182 | ||
dc45a647 MB |
2183 | longlongsize (d_longlong.U): |
2184 | This variable contains the value of the LONGLONGSIZE symbol, which | |
2185 | indicates to the C program how many bytes there are in a long long, | |
2186 | if this system supports long long. | |
2187 | ||
4fdae800 | 2188 | longsize (intsize.U): |
dfe9444c AD |
2189 | This variable contains the value of the LONGSIZE symbol, which |
2190 | indicates to the C program how many bytes there are in a long. | |
4fdae800 | 2191 | |
3a6175e1 AD |
2192 | lp (Loc.U): |
2193 | This variable is defined but not used by Configure. | |
2194 | The value is a plain '' and is not useful. | |
2195 | ||
2196 | lpr (Loc.U): | |
2197 | This variable is defined but not used by Configure. | |
2198 | The value is a plain '' and is not useful. | |
2199 | ||
2200 | ls (Loc.U): | |
2201 | This variable is be used internally by Configure to determine the | |
2202 | full pathname (if any) of the ls program. After Configure runs, | |
2203 | the value is reset to a plain "ls" and is not useful. | |
2204 | ||
921b2963 JH |
2205 | lseeksize (lseektype.U): |
2206 | This variable defines lseektype to be something like off_t, long, | |
2207 | or whatever type is used to declare lseek offset's type in the | |
2208 | kernel (which also appears to be lseek's return type). | |
2209 | ||
d7418ba7 | 2210 | lseektype (lseektype.U): |
2211 | This variable defines lseektype to be something like off_t, long, | |
2212 | or whatever type is used to declare lseek offset's type in the | |
2213 | kernel (which also appears to be lseek's return type). | |
2214 | ||
3a6175e1 AD |
2215 | mail (Loc.U): |
2216 | This variable is defined but not used by Configure. | |
2217 | The value is a plain '' and is not useful. | |
2218 | ||
2219 | mailx (Loc.U): | |
2220 | This variable is defined but not used by Configure. | |
2221 | The value is a plain '' and is not useful. | |
2222 | ||
2223 | make (Loc.U): | |
2224 | This variable is be used internally by Configure to determine the | |
2225 | full pathname (if any) of the make program. After Configure runs, | |
2226 | the value is reset to a plain "make" and is not useful. | |
2227 | ||
d7418ba7 | 2228 | make_set_make (make.U): |
2229 | Some versions of 'make' set the variable MAKE. Others do not. | |
2230 | This variable contains the string to be included in Makefile.SH | |
2231 | so that MAKE is set if needed, and not if not needed. | |
2232 | Possible values are: | |
dfe9444c AD |
2233 | make_set_make='#' # If your make program handles this for you, |
2234 | make_set_make="MAKE=$make" # if it doesn't. | |
d7418ba7 | 2235 | I used a comment character so that we can distinguish a |
732c9516 | 2236 | 'set' value (from a previous config.sh or Configure -D option) |
d7418ba7 | 2237 | from an uncomputed value. |
2238 | ||
2239 | mallocobj (mallocsrc.U): | |
2240 | This variable contains the name of the malloc.o that this package | |
2241 | generates, if that malloc.o is preferred over the system malloc. | |
2242 | Otherwise the value is null. This variable is intended for generating | |
2243 | Makefiles. See mallocsrc. | |
2244 | ||
2245 | mallocsrc (mallocsrc.U): | |
2246 | This variable contains the name of the malloc.c that comes with | |
2247 | the package, if that malloc.c is preferred over the system malloc. | |
2248 | Otherwise the value is null. This variable is intended for generating | |
2249 | Makefiles. | |
2250 | ||
2251 | malloctype (mallocsrc.U): | |
2252 | This variable contains the kind of ptr returned by malloc and realloc. | |
2253 | ||
2254 | man1dir (man1dir.U): | |
2255 | This variable contains the name of the directory in which manual | |
2256 | source pages are to be put. It is the responsibility of the | |
2257 | Makefile.SH to get the value of this into the proper command. | |
2258 | You must be prepared to do the ~name expansion yourself. | |
2259 | ||
dfe9444c AD |
2260 | man1direxp (man1dir.U): |
2261 | This variable is the same as the man1dir variable, but is filename | |
2262 | expanded at configuration time, for convenient use in makefiles. | |
2263 | ||
d7418ba7 | 2264 | man1ext (man1dir.U): |
2265 | This variable contains the extension that the manual page should | |
2266 | have: one of 'n', 'l', or '1'. The Makefile must supply the '.'. | |
2267 | See man1dir. | |
2268 | ||
2269 | man3dir (man3dir.U): | |
2270 | This variable contains the name of the directory in which manual | |
2271 | source pages are to be put. It is the responsibility of the | |
2272 | Makefile.SH to get the value of this into the proper command. | |
2273 | You must be prepared to do the ~name expansion yourself. | |
2274 | ||
dfe9444c AD |
2275 | man3direxp (man3dir.U): |
2276 | This variable is the same as the man3dir variable, but is filename | |
2277 | expanded at configuration time, for convenient use in makefiles. | |
2278 | ||
d7418ba7 | 2279 | man3ext (man3dir.U): |
2280 | This variable contains the extension that the manual page should | |
2281 | have: one of 'n', 'l', or '3'. The Makefile must supply the '.'. | |
2282 | See man3dir. | |
2283 | ||
ef4af2be JH |
2284 | Mcc (Loc.U): |
2285 | This variable is be used internally by Configure to determine the | |
2286 | full pathname (if any) of the Mcc program. After Configure runs, | |
2287 | the value is reset to a plain "Mcc" and is not useful. | |
2288 | ||
dfe9444c AD |
2289 | medium (models.U): |
2290 | This variable contains a flag which will tell the C compiler and loader | |
2291 | to produce a program running with a medium memory model. If the | |
2292 | medium model is not supported, contains the flag to produce large | |
2293 | model programs. It is up to the Makefile to use this. | |
2294 | ||
2295 | mips_type (usrinc.U): | |
2296 | This variable holds the environment type for the mips system. | |
2297 | Possible values are "BSD 4.3" and "System V". | |
2298 | ||
3a6175e1 AD |
2299 | mkdir (Loc.U): |
2300 | This variable is be used internally by Configure to determine the | |
2301 | full pathname (if any) of the mkdir program. After Configure runs, | |
2302 | the value is reset to a plain "mkdir" and is not useful. | |
2303 | ||
732c9516 JH |
2304 | mmaptype (d_mmap.U): |
2305 | This symbol contains the type of pointer returned by mmap() | |
2306 | (and simultaneously the type of the first argument). | |
2307 | It can be 'void *' or 'caddr_t'. | |
2308 | ||
dfe9444c AD |
2309 | models (models.U): |
2310 | This variable contains the list of memory models supported by this | |
2311 | system. Possible component values are none, split, unsplit, small, | |
2312 | medium, large, and huge. The component values are space separated. | |
2313 | ||
d7418ba7 | 2314 | modetype (modetype.U): |
2315 | This variable defines modetype to be something like mode_t, | |
2316 | int, unsigned short, or whatever type is used to declare file | |
2317 | modes for system calls. | |
2318 | ||
3a6175e1 AD |
2319 | more (Loc.U): |
2320 | This variable is be used internally by Configure to determine the | |
2321 | full pathname (if any) of the more program. After Configure runs, | |
2322 | the value is reset to a plain "more" and is not useful. | |
2323 | ||
2324 | mv (Loc.U): | |
2325 | This variable is defined but not used by Configure. | |
2326 | The value is a plain '' and is not useful. | |
2327 | ||
dfe9444c AD |
2328 | myarchname (archname.U): |
2329 | This variable holds the architecture name computed by Configure in | |
2330 | a previous run. It is not intended to be perused by any user and | |
2331 | should never be set in a hint file. | |
2332 | ||
2333 | mydomain (myhostname.U): | |
2334 | This variable contains the eventual value of the MYDOMAIN symbol, | |
2335 | which is the domain of the host the program is going to run on. | |
2336 | The domain must be appended to myhostname to form a complete host name. | |
2337 | The dot comes with mydomain, and need not be supplied by the program. | |
2338 | ||
dc45a647 MB |
2339 | myhostname (myhostname.U): |
2340 | This variable contains the eventual value of the MYHOSTNAME symbol, | |
2341 | which is the name of the host the program is going to run on. | |
2342 | The domain is not kept with hostname, but must be gotten from mydomain. | |
2343 | The dot comes with mydomain, and need not be supplied by the program. | |
2344 | ||
dfe9444c AD |
2345 | myuname (Oldconfig.U): |
2346 | The output of 'uname -a' if available, otherwise the hostname. On Xenix, | |
2347 | pseudo variables assignments in the output are stripped, thank you. The | |
2348 | whole thing is then lower-cased. | |
2349 | ||
d7418ba7 | 2350 | n (n.U): |
732c9516 | 2351 | This variable contains the -n flag if that is what causes the echo |
d7418ba7 | 2352 | command to suppress newline. Otherwise it is null. Correct usage is |
ccc7f9b3 | 2353 | $echo $n "prompt for a question: $c". |
d7418ba7 | 2354 | |
dfe9444c AD |
2355 | netdb_hlen_type (netdbtype.U): |
2356 | This variable holds the type used for the 2nd argument to | |
2357 | gethostbyaddr(). Usually, this is int or size_t or unsigned. | |
2358 | This is only useful if you have gethostbyaddr(), naturally. | |
2359 | ||
2360 | netdb_host_type (netdbtype.U): | |
2361 | This variable holds the type used for the 1st argument to | |
2362 | gethostbyaddr(). Usually, this is char * or void *, possibly | |
2363 | with or without a const prefix. | |
2364 | This is only useful if you have gethostbyaddr(), naturally. | |
2365 | ||
2366 | netdb_name_type (netdbtype.U): | |
2367 | This variable holds the type used for the argument to | |
2368 | gethostbyname(). Usually, this is char * or const char *. | |
2369 | This is only useful if you have gethostbyname(), naturally. | |
2370 | ||
2371 | netdb_net_type (netdbtype.U): | |
2372 | This variable holds the type used for the 1st argument to | |
2373 | getnetbyaddr(). Usually, this is int or long. | |
2374 | This is only useful if you have getnetbyaddr(), naturally. | |
2375 | ||
732c9516 JH |
2376 | nm (Loc.U): |
2377 | This variable is be used internally by Configure to determine the | |
2378 | full pathname (if any) of the nm program. After Configure runs, | |
2379 | the value is reset to a plain "nm" and is not useful. | |
2380 | ||
dfe9444c AD |
2381 | nm_opt (usenm.U): |
2382 | This variable holds the options that may be necessary for nm. | |
2383 | ||
2384 | nm_so_opt (usenm.U): | |
2385 | This variable holds the options that may be necessary for nm | |
2386 | to work on a shared library but that can not be used on an | |
2387 | archive library. Currently, this is only used by Linux, where | |
2388 | nm --dynamic is *required* to get symbols from an ELF library which | |
2389 | has been stripped, but nm --dynamic is *fatal* on an archive library. | |
2390 | Maybe Linux should just always set usenm=false. | |
2391 | ||
bfb7748a AD |
2392 | nonxs_ext (Extensions.U): |
2393 | This variable holds a list of all non-xs extensions included | |
2394 | in the package. All of them will be built. | |
2395 | ||
3a6175e1 AD |
2396 | nroff (Loc.U): |
2397 | This variable is be used internally by Configure to determine the | |
2398 | full pathname (if any) of the nroff program. After Configure runs, | |
2399 | the value is reset to a plain "nroff" and is not useful. | |
2400 | ||
d7418ba7 | 2401 | o_nonblock (nblock_io.U): |
2402 | This variable bears the symbol value to be used during open() or fcntl() | |
2403 | to turn on non-blocking I/O for a file descriptor. If you wish to switch | |
2404 | between blocking and non-blocking, you may try ioctl(FIOSNBIO) instead, | |
2405 | but that is only supported by some devices. | |
2406 | ||
dfe9444c AD |
2407 | obj_ext (Unix.U): |
2408 | This is an old synonym for _o. | |
d7418ba7 | 2409 | |
ef4af2be JH |
2410 | old_pthread_create_joinable (d_pthrattrj.U): |
2411 | This variable defines the constant to use for creating joinable | |
2412 | (aka undetached) pthreads. Unused if pthread.h defines | |
2413 | PTHREAD_CREATE_JOINABLE. If used, possible values are | |
2414 | PTHREAD_CREATE_UNDETACHED and __UNDETACHED. | |
2415 | ||
d7418ba7 | 2416 | optimize (ccflags.U): |
2417 | This variable contains any optimizer/debugger flag that should be used. | |
2418 | It is up to the Makefile to use it. | |
2419 | ||
dfe9444c AD |
2420 | orderlib (orderlib.U): |
2421 | This variable is "true" if the components of libraries must be ordered | |
2422 | (with `lorder $* | tsort`) before placing them in an archive. Set to | |
2423 | "false" if ranlib or ar can generate random libraries. | |
2424 | ||
d7418ba7 | 2425 | osname (Oldconfig.U): |
2426 | This variable contains the operating system name (e.g. sunos, | |
2427 | solaris, hpux, etc.). It can be useful later on for setting | |
2428 | defaults. Any spaces are replaced with underscores. It is set | |
2429 | to a null string if we can't figure it out. | |
2430 | ||
dfe9444c AD |
2431 | osvers (Oldconfig.U): |
2432 | This variable contains the operating system version (e.g. | |
2433 | 4.1.3, 5.2, etc.). It is primarily used for helping select | |
2434 | an appropriate hints file, but might be useful elsewhere for | |
2435 | setting defaults. It is set to '' if we can't figure it out. | |
2436 | We try to be flexible about how much of the version number | |
2437 | to keep, e.g. if 4.1.1, 4.1.2, and 4.1.3 are essentially the | |
2438 | same for this package, hints files might just be os_4.0 or | |
2439 | os_4.1, etc., not keeping separate files for each little release. | |
2440 | ||
2441 | package (package.U): | |
2442 | This variable contains the name of the package being constructed. | |
2443 | It is primarily intended for the use of later Configure units. | |
2444 | ||
d7418ba7 | 2445 | pager (pager.U): |
2446 | This variable contains the name of the preferred pager on the system. | |
2447 | Usual values are (the full pathnames of) more, less, pg, or cat. | |
2448 | ||
dfe9444c AD |
2449 | passcat (nis.U): |
2450 | This variable contains a command that produces the text of the | |
2451 | /etc/passwd file. This is normally "cat /etc/passwd", but can be | |
2452 | "ypcat passwd" when NIS is used. | |
2453 | ||
2454 | patchlevel (patchlevel.U): | |
2455 | The patchlevel level of this package. | |
2456 | The value of patchlevel comes from the patchlevel.h file. | |
2457 | ||
d7418ba7 | 2458 | path_sep (Unix.U): |
dfe9444c AD |
2459 | This is an old synonym for p_ in Head.U, the character |
2460 | used to separate elements in the command shell search PATH. | |
d7418ba7 | 2461 | |
3a6175e1 | 2462 | perl (Loc.U): |
921b2963 JH |
2463 | This variable is defined but not used by Configure. |
2464 | The value is a plain '' and is not useful. | |
3a6175e1 | 2465 | |
d7418ba7 | 2466 | perladmin (perladmin.U): |
2467 | Electronic mail address of the perl5 administrator. | |
2468 | ||
7e1af8bc | 2469 | perlpath (perlpath.U): |
2470 | This variable contains the eventual value of the PERLPATH symbol, | |
2471 | which contains the name of the perl interpreter to be used in | |
2472 | shell scripts and in the "eval 'exec'" idiom. | |
2473 | ||
3a6175e1 AD |
2474 | pg (Loc.U): |
2475 | This variable is be used internally by Configure to determine the | |
2476 | full pathname (if any) of the pg program. After Configure runs, | |
2477 | the value is reset to a plain "pg" and is not useful. | |
2478 | ||
dfe9444c AD |
2479 | phostname (myhostname.U): |
2480 | This variable contains the eventual value of the PHOSTNAME symbol, | |
2481 | which is a command that can be fed to popen() to get the host name. | |
2482 | The program should probably not presume that the domain is or isn't | |
2483 | there already. | |
2484 | ||
2485 | pidtype (pidtype.U): | |
2486 | This variable defines PIDTYPE to be something like pid_t, int, | |
2487 | ushort, or whatever type is used to declare process ids in the kernel. | |
2488 | ||
2489 | plibpth (libpth.U): | |
2490 | Holds the private path used by Configure to find out the libraries. | |
2491 | Its value is prepend to libpth. This variable takes care of special | |
2492 | machines, like the mips. Usually, it should be empty. | |
2493 | ||
3a6175e1 AD |
2494 | pmake (Loc.U): |
2495 | This variable is defined but not used by Configure. | |
2496 | The value is a plain '' and is not useful. | |
2497 | ||
2498 | pr (Loc.U): | |
2499 | This variable is defined but not used by Configure. | |
2500 | The value is a plain '' and is not useful. | |
2501 | ||
d7418ba7 | 2502 | prefix (prefix.U): |
2503 | This variable holds the name of the directory below which the | |
2504 | user will install the package. Usually, this is /usr/local, and | |
2505 | executables go in /usr/local/bin, library stuff in /usr/local/lib, | |
2506 | man pages in /usr/local/man, etc. It is only used to set defaults | |
2507 | for things in bin.U, mansrc.U, privlib.U, or scriptdir.U. | |
2508 | ||
dfe9444c AD |
2509 | prefixexp (prefix.U): |
2510 | This variable holds the full absolute path of the directory below | |
2511 | which the user will install the package. Derived from prefix. | |
2512 | ||
d7418ba7 | 2513 | privlib (privlib.U): |
2514 | This variable contains the eventual value of the PRIVLIB symbol, | |
2515 | which is the name of the private library for this package. It may | |
2516 | have a ~ on the front. It is up to the makefile to eventually create | |
2517 | this directory while performing installation (with ~ substitution). | |
2518 | ||
2519 | privlibexp (privlib.U): | |
2520 | This variable is the ~name expanded version of privlib, so that you | |
2521 | may use it directly in Makefiles or shell scripts. | |
2522 | ||
2523 | prototype (prototype.U): | |
2524 | This variable holds the eventual value of CAN_PROTOTYPE, which | |
2525 | indicates the C compiler can handle funciton prototypes. | |
2526 | ||
693762b4 AD |
2527 | ptrsize (ptrsize.U): |
2528 | This variable contains the value of the PTRSIZE symbol, which | |
2529 | indicates to the C program how many bytes there are in a pointer. | |
2530 | ||
921b2963 JH |
2531 | randbits (randfunc.U): |
2532 | Indicates how many bits are produced by the function used to | |
2533 | generate normalized random numbers. | |
2534 | ||
2535 | randfunc (randfunc.U): | |
2536 | Indicates the name of the random number function to use. | |
2537 | Values include drand48, random, and rand. In C programs, | |
2538 | the 'Drand01' macro is defined to generate uniformly distributed | |
2539 | random numbers over the range [0., 1.[ (see drand01 and nrand). | |
2540 | ||
2541 | randseedtype (randfunc.U): | |
2542 | Indicates the type of the argument of the seedfunc. | |
d7418ba7 | 2543 | |
2544 | ranlib (orderlib.U): | |
2545 | This variable is set to the pathname of the ranlib program, if it is | |
2546 | needed to generate random libraries. Set to ":" if ar can generate | |
2547 | random libraries or if random libraries are not supported | |
2548 | ||
2549 | rd_nodata (nblock_io.U): | |
2550 | This variable holds the return code from read() when no data is | |
2551 | present. It should be -1, but some systems return 0 when O_NDELAY is | |
2552 | used, which is a shame because you cannot make the difference between | |
2553 | no data and an EOF.. Sigh! | |
2554 | ||
3a6175e1 AD |
2555 | rm (Loc.U): |
2556 | This variable is be used internally by Configure to determine the | |
2557 | full pathname (if any) of the rm program. After Configure runs, | |
2558 | the value is reset to a plain "rm" and is not useful. | |
2559 | ||
2560 | rmail (Loc.U): | |
2561 | This variable is defined but not used by Configure. | |
2562 | The value is a plain '' and is not useful. | |
2563 | ||
dfe9444c AD |
2564 | runnm (usenm.U): |
2565 | This variable contains 'true' or 'false' depending whether the | |
2566 | nm extraction should be performed or not, according to the value | |
2567 | of usenm and the flags on the Configure command line. | |
2568 | ||
921b2963 JH |
2569 | sched_yield (d_pthread_y.U): |
2570 | This variable defines the way to yield the execution | |
2571 | of the current thread. | |
2572 | ||
d7418ba7 | 2573 | scriptdir (scriptdir.U): |
2574 | This variable holds the name of the directory in which the user wants | |
2575 | to put publicly scripts for the package in question. It is either | |
2576 | the same directory as for binaries, or a special one that can be | |
2577 | mounted across different architectures, like /usr/share. Programs | |
2578 | must be prepared to deal with ~name expansion. | |
2579 | ||
dfe9444c AD |
2580 | scriptdirexp (scriptdir.U): |
2581 | This variable is the same as scriptdir, but is filename expanded | |
2582 | at configuration time, for programs not wanting to bother with it. | |
2583 | ||
3a6175e1 AD |
2584 | sed (Loc.U): |
2585 | This variable is be used internally by Configure to determine the | |
2586 | full pathname (if any) of the sed program. After Configure runs, | |
2587 | the value is reset to a plain "sed" and is not useful. | |
2588 | ||
921b2963 JH |
2589 | seedfunc (randfunc.U): |
2590 | Indicates the random number generating seed function. | |
2591 | Values include srand48, srandom, and srand. | |
2592 | ||
2593 | selectminbits (selectminbits.U): | |
2594 | This variable holds the minimum number of bits operated by select. | |
2595 | That is, if you do select(n, ...), how many bits at least will be | |
2596 | cleared in the masks if some activity is detected. Usually this | |
2597 | is either n or 32*ceil(n/32), especially many little-endians do | |
2598 | the latter. This is only useful if you have select(), naturally. | |
2599 | ||
d7418ba7 | 2600 | selecttype (selecttype.U): |
2601 | This variable holds the type used for the 2nd, 3rd, and 4th | |
2602 | arguments to select. Usually, this is 'fd_set *', if HAS_FD_SET | |
2603 | is defined, and 'int *' otherwise. This is only useful if you | |
2604 | have select(), naturally. | |
2605 | ||
3a6175e1 | 2606 | sendmail (Loc.U): |
921b2963 JH |
2607 | This variable is defined but not used by Configure. |
2608 | The value is a plain '' and is not useful. | |
3a6175e1 | 2609 | |
d7418ba7 | 2610 | sh (sh.U): |
2611 | This variable contains the full pathname of the shell used | |
2612 | on this system to execute Bourne shell scripts. Usually, this will be | |
2613 | /bin/sh, though it's possible that some systems will have /bin/ksh, | |
bb14ff96 | 2614 | /bin/pdksh, /bin/ash, /bin/bash, or even something such as |
2615 | D:/bin/sh.exe. | |
732c9516 | 2616 | This unit comes before Options.U, so you can't set sh with a -D |
d7418ba7 | 2617 | option, though you can override this (and startsh) |
732c9516 | 2618 | with -O -Dsh=/bin/whatever -Dstartsh=whatever |
d7418ba7 | 2619 | |
3a6175e1 AD |
2620 | shar (Loc.U): |
2621 | This variable is defined but not used by Configure. | |
2622 | The value is a plain '' and is not useful. | |
2623 | ||
dfe9444c AD |
2624 | sharpbang (spitshell.U): |
2625 | This variable contains the string #! if this system supports that | |
2626 | construct. | |
2627 | ||
d7418ba7 | 2628 | shmattype (d_shmat.U): |
2629 | This symbol contains the type of pointer returned by shmat(). | |
2630 | It can be 'void *' or 'char *'. | |
2631 | ||
4fdae800 | 2632 | shortsize (intsize.U): |
dfe9444c AD |
2633 | This variable contains the value of the SHORTSIZE symbol which |
2634 | indicates to the C program how many bytes there are in a short. | |
4fdae800 | 2635 | |
c43cd16b | 2636 | shrpenv (libperl.U): |
2637 | If the user builds a shared libperl.so, then we need to tell the | |
2638 | 'perl' executable where it will be able to find the installed libperl.so. | |
2639 | One way to do this on some systems is to set the environment variable | |
2640 | LD_RUN_PATH to the directory that will be the final location of the | |
2641 | shared libperl.so. The makefile can use this with something like | |
ccc7f9b3 | 2642 | $shrpenv $(CC) -o perl perlmain.o $libperl $libs |
c43cd16b | 2643 | Typical values are |
ccc7f9b3 | 2644 | shrpenv="env LD_RUN_PATH=$archlibexp/CORE" |
c43cd16b | 2645 | or |
ccc7f9b3 | 2646 | shrpenv='' |
c43cd16b | 2647 | See the main perl Makefile.SH for actual working usage. |
2648 | Alternatively, we might be able to use a command line option such | |
2649 | as -R $archlibexp/CORE (Solaris, NetBSD) or -Wl,-rpath | |
2650 | $archlibexp/CORE (Linux). | |
2651 | ||
dfe9444c AD |
2652 | shsharp (spitshell.U): |
2653 | This variable tells further Configure units whether your sh can | |
2654 | handle # comments. | |
2655 | ||
d7418ba7 | 2656 | sig_name (sig_name.U): |
2657 | This variable holds the signal names, space separated. The leading | |
dfe9444c AD |
2658 | SIG in signal name is removed. A ZERO is prepended to the |
2659 | list. This is currently not used. | |
2660 | ||
2661 | sig_name_init (sig_name.U): | |
2662 | This variable holds the signal names, enclosed in double quotes and | |
2663 | separated by commas, suitable for use in the SIG_NAME definition | |
2664 | below. A "ZERO" is prepended to the list, and the list is | |
2665 | terminated with a plain 0. The leading SIG in signal names | |
2666 | is removed. See sig_num. | |
d7418ba7 | 2667 | |
2668 | sig_num (sig_name.U): | |
921b2963 | 2669 | This variable holds the signal numbers, space separated. A ZERO is |
dfe9444c AD |
2670 | prepended to the list (corresponding to the fake SIGZERO), and |
2671 | the list is terminated with a 0. Those numbers correspond to | |
2672 | the value of the signal listed in the same place within the | |
2673 | sig_name list. | |
d7418ba7 | 2674 | |
921b2963 JH |
2675 | sig_num_init (sig_name.U): |
2676 | This variable holds the signal numbers, enclosed in double quotes and | |
2677 | separated by commas, suitable for use in the SIG_NUM definition | |
2678 | below. A "ZERO" is prepended to the list, and the list is | |
2679 | terminated with a plain 0. | |
2680 | ||
d7418ba7 | 2681 | signal_t (d_voidsig.U): |
2682 | This variable holds the type of the signal handler (void or int). | |
2683 | ||
2684 | sitearch (sitearch.U): | |
2685 | This variable contains the eventual value of the SITEARCH symbol, | |
2686 | which is the name of the private library for this package. It may | |
2687 | have a ~ on the front. It is up to the makefile to eventually create | |
2688 | this directory while performing installation (with ~ substitution). | |
2689 | ||
2690 | sitearchexp (sitearch.U): | |
2691 | This variable is the ~name expanded version of sitearch, so that you | |
2692 | may use it directly in Makefiles or shell scripts. | |
2693 | ||
2694 | sitelib (sitelib.U): | |
2695 | This variable contains the eventual value of the SITELIB symbol, | |
2696 | which is the name of the private library for this package. It may | |
2697 | have a ~ on the front. It is up to the makefile to eventually create | |
2698 | this directory while performing installation (with ~ substitution). | |
2699 | ||
2700 | sitelibexp (sitelib.U): | |
2701 | This variable is the ~name expanded version of sitelib, so that you | |
2702 | may use it directly in Makefiles or shell scripts. | |
2703 | ||
2704 | sizetype (sizetype.U): | |
2705 | This variable defines sizetype to be something like size_t, | |
2706 | unsigned long, or whatever type is used to declare length | |
2707 | parameters for string functions. | |
2708 | ||
3a6175e1 AD |
2709 | sleep (Loc.U): |
2710 | This variable is defined but not used by Configure. | |
2711 | The value is a plain '' and is not useful. | |
2712 | ||
2713 | smail (Loc.U): | |
2714 | This variable is defined but not used by Configure. | |
2715 | The value is a plain '' and is not useful. | |
2716 | ||
d7418ba7 | 2717 | small (models.U): |
2718 | This variable contains a flag which will tell the C compiler and loader | |
2719 | to produce a program running with a small memory model. It is up to | |
2720 | the Makefile to use this. | |
2721 | ||
dfe9444c AD |
2722 | so (so.U): |
2723 | This variable holds the extension used to identify shared libraries | |
2724 | (also known as shared objects) on the system. Usually set to 'so'. | |
2725 | ||
2726 | sockethdr (d_socket.U): | |
fb87c415 | 2727 | This variable has any cpp '-I' flags needed for socket support. |
dfe9444c AD |
2728 | |
2729 | socketlib (d_socket.U): | |
2730 | This variable has the names of any libraries needed for socket support. | |
2731 | ||
3a6175e1 AD |
2732 | sort (Loc.U): |
2733 | This variable is be used internally by Configure to determine the | |
2734 | full pathname (if any) of the sort program. After Configure runs, | |
2735 | the value is reset to a plain "sort" and is not useful. | |
2736 | ||
dfe9444c AD |
2737 | spackage (package.U): |
2738 | This variable contains the name of the package being constructed, | |
2739 | with the first letter uppercased, i.e. suitable for starting | |
2740 | sentences. | |
2741 | ||
d7418ba7 | 2742 | spitshell (spitshell.U): |
2743 | This variable contains the command necessary to spit out a runnable | |
732c9516 | 2744 | shell on this system. It is either cat or a grep -v for # comments. |
d7418ba7 | 2745 | |
2746 | split (models.U): | |
2747 | This variable contains a flag which will tell the C compiler and loader | |
2748 | to produce a program that will run in separate I and D space, for those | |
2749 | machines that support separation of instruction and data space. It is | |
2750 | up to the Makefile to use this. | |
2751 | ||
dc45a647 MB |
2752 | src (src.U): |
2753 | This variable holds the path to the package source. It is up to | |
2754 | the Makefile to use this variable and set VPATH accordingly to | |
2755 | find the sources remotely. | |
2756 | ||
d7418ba7 | 2757 | ssizetype (ssizetype.U): |
2758 | This variable defines ssizetype to be something like ssize_t, | |
2759 | long or int. It is used by functions that return a count | |
2760 | of bytes or an error condition. It must be a signed type. | |
2761 | We will pick a type such that sizeof(SSize_t) == sizeof(Size_t). | |
2762 | ||
2763 | startperl (startperl.U): | |
2764 | This variable contains the string to put on the front of a perl | |
2765 | script to make sure (hopefully) that it runs with perl and not some | |
2766 | shell. Of course, that leading line must be followed by the classical | |
2767 | perl idiom: | |
ccc7f9b3 KS |
2768 | eval 'exec perl -S $0 ${1+"$@"}' |
2769 | if $running_under_some_shell; | |
d7418ba7 | 2770 | to guarantee perl startup should the shell execute the script. Note |
2771 | that this magic incatation is not understood by csh. | |
2772 | ||
2773 | startsh (startsh.U): | |
2774 | This variable contains the string to put on the front of a shell | |
2775 | script to make sure (hopefully) that it runs with sh and not some | |
2776 | other shell. | |
2777 | ||
2778 | static_ext (Extensions.U): | |
bfb7748a | 2779 | This variable holds a list of XS extension files we want to |
d7418ba7 | 2780 | link statically into the package. It is used by Makefile. |
2781 | ||
2782 | stdchar (stdchar.U): | |
2783 | This variable conditionally defines STDCHAR to be the type of char | |
2784 | used in stdio.h. It has the values "unsigned char" or "char". | |
2785 | ||
dfe9444c AD |
2786 | stdio_base (d_stdstdio.U): |
2787 | This variable defines how, given a FILE pointer, fp, to access the | |
2788 | _base field (or equivalent) of stdio.h's FILE structure. This will | |
2789 | be used to define the macro FILE_base(fp). | |
2790 | ||
2791 | stdio_bufsiz (d_stdstdio.U): | |
2792 | This variable defines how, given a FILE pointer, fp, to determine | |
2793 | the number of bytes store in the I/O buffer pointer to by the | |
2794 | _base field (or equivalent) of stdio.h's FILE structure. This will | |
2795 | be used to define the macro FILE_bufsiz(fp). | |
2796 | ||
2797 | stdio_cnt (d_stdstdio.U): | |
2798 | This variable defines how, given a FILE pointer, fp, to access the | |
2799 | _cnt field (or equivalent) of stdio.h's FILE structure. This will | |
2800 | be used to define the macro FILE_cnt(fp). | |
2801 | ||
2802 | stdio_filbuf (d_stdstdio.U): | |
2803 | This variable defines how, given a FILE pointer, fp, to tell | |
2804 | stdio to refill it's internal buffers (?). This will | |
2805 | be used to define the macro FILE_filbuf(fp). | |
2806 | ||
2807 | stdio_ptr (d_stdstdio.U): | |
2808 | This variable defines how, given a FILE pointer, fp, to access the | |
2809 | _ptr field (or equivalent) of stdio.h's FILE structure. This will | |
2810 | be used to define the macro FILE_ptr(fp). | |
2811 | ||
2812 | strings (i_string.U): | |
2813 | This variable holds the full path of the string header that will be | |
2814 | used. Typically /usr/include/string.h or /usr/include/strings.h. | |
2815 | ||
3a6175e1 AD |
2816 | submit (Loc.U): |
2817 | This variable is defined but not used by Configure. | |
2818 | The value is a plain '' and is not useful. | |
2819 | ||
dfe9444c AD |
2820 | subversion (patchlevel.U): |
2821 | The subversion level of this package. | |
2822 | The value of subversion comes from the patchlevel.h file. | |
2823 | This is unique to perl. | |
2824 | ||
2825 | sysman (sysman.U): | |
2826 | This variable holds the place where the manual is located on this | |
2827 | system. It is not the place where the user wants to put his manual | |
2828 | pages. Rather it is the place where Configure may look to find manual | |
2829 | for unix commands (section 1 of the manual usually). See mansrc. | |
2830 | ||
3a6175e1 AD |
2831 | tail (Loc.U): |
2832 | This variable is defined but not used by Configure. | |
2833 | The value is a plain '' and is not useful. | |
2834 | ||
2835 | tar (Loc.U): | |
2836 | This variable is defined but not used by Configure. | |
2837 | The value is a plain '' and is not useful. | |
2838 | ||
2839 | tbl (Loc.U): | |
2840 | This variable is defined but not used by Configure. | |
2841 | The value is a plain '' and is not useful. | |
2842 | ||
732c9516 JH |
2843 | tee (Loc.U): |
2844 | This variable is be used internally by Configure to determine the | |
2845 | full pathname (if any) of the tee program. After Configure runs, | |
2846 | the value is reset to a plain "tee" and is not useful. | |
2847 | ||
3a6175e1 AD |
2848 | test (Loc.U): |
2849 | This variable is be used internally by Configure to determine the | |
2850 | full pathname (if any) of the test program. After Configure runs, | |
2851 | the value is reset to a plain "test" and is not useful. | |
2852 | ||
dfe9444c AD |
2853 | timeincl (i_time.U): |
2854 | This variable holds the full path of the included time header(s). | |
2855 | ||
d7418ba7 | 2856 | timetype (d_time.U): |
2857 | This variable holds the type returned by time(). It can be long, | |
2858 | or time_t on BSD sites (in which case <sys/types.h> should be | |
2859 | included). Anyway, the type Time_t should be used. | |
2860 | ||
3a6175e1 AD |
2861 | touch (Loc.U): |
2862 | This variable is be used internally by Configure to determine the | |
2863 | full pathname (if any) of the touch program. After Configure runs, | |
2864 | the value is reset to a plain "touch" and is not useful. | |
2865 | ||
2866 | tr (Loc.U): | |
2867 | This variable is be used internally by Configure to determine the | |
2868 | full pathname (if any) of the tr program. After Configure runs, | |
2869 | the value is reset to a plain "tr" and is not useful. | |
2870 | ||
93341792 AD |
2871 | trnl (trnl.U): |
2872 | This variable contains the value to be passed to the tr(1) | |
2873 | command to transliterate a newline. Typical values are | |
2874 | '\012' and '\n'. This is needed for EBCDIC systems where | |
2875 | newline is not necessarily '\012'. | |
2876 | ||
3a6175e1 AD |
2877 | troff (Loc.U): |
2878 | This variable is defined but not used by Configure. | |
2879 | The value is a plain '' and is not useful. | |
2880 | ||
d7418ba7 | 2881 | uidtype (uidtype.U): |
2882 | This variable defines Uid_t to be something like uid_t, int, | |
2883 | ushort, or whatever type is used to declare user ids in the kernel. | |
2884 | ||
3a6175e1 AD |
2885 | uname (Loc.U): |
2886 | This variable is be used internally by Configure to determine the | |
2887 | full pathname (if any) of the uname program. After Configure runs, | |
2888 | the value is reset to a plain "uname" and is not useful. | |
2889 | ||
2890 | uniq (Loc.U): | |
2891 | This variable is be used internally by Configure to determine the | |
2892 | full pathname (if any) of the uniq program. After Configure runs, | |
2893 | the value is reset to a plain "uniq" and is not useful. | |
2894 | ||
921b2963 JH |
2895 | use64bits (use64bits.U): |
2896 | This variable conditionally defines the USE_64_BITS symbol, | |
2897 | and indicates that explicit 64-bit interfaces should be used | |
2898 | when available. | |
2899 | ||
dfe9444c AD |
2900 | usedl (dlsrc.U): |
2901 | This variable indicates if the the system supports dynamic | |
2902 | loading of some sort. See also dlsrc and dlobj. | |
2903 | ||
921b2963 JH |
2904 | usemultiplicity (usemultiplicity.U): |
2905 | This variable conditionally defines the MULTIPLICITY symbol, | |
2906 | and indicates that Perl should be built to use multiplicity. | |
2907 | ||
dfe9444c AD |
2908 | usemymalloc (mallocsrc.U): |
2909 | This variable contains y if the malloc that comes with this package | |
2910 | is desired over the system's version of malloc. People often include | |
2911 | special versions of malloc for effiency, but such versions are often | |
2912 | less portable. See also mallocsrc and mallocobj. | |
2913 | If this is 'y', then -lmalloc is removed from $libs. | |
2914 | ||
2915 | usenm (usenm.U): | |
2916 | This variable contains 'true' or 'false' depending whether the | |
2917 | nm extraction is wanted or not. | |
2918 | ||
2919 | useopcode (Extensions.U): | |
2920 | This variable holds either 'true' or 'false' to indicate | |
2921 | whether the Opcode extension should be used. The sole | |
2922 | use for this currently is to allow an easy mechanism | |
2923 | for users to skip the Opcode extension from the Configure | |
2924 | command line. | |
2925 | ||
d7418ba7 | 2926 | useperlio (useperlio.U): |
2927 | This variable conditionally defines the USE_PERLIO symbol, | |
2928 | and indicates that the PerlIO abstraction should be | |
2929 | used throughout. | |
2930 | ||
dfe9444c AD |
2931 | useposix (Extensions.U): |
2932 | This variable holds either 'true' or 'false' to indicate | |
2933 | whether the POSIX extension should be used. The sole | |
2934 | use for this currently is to allow an easy mechanism | |
2935 | for hints files to indicate that POSIX will not compile | |
2936 | on a particular system. | |
2937 | ||
2938 | usesfio (d_sfio.U): | |
2939 | This variable is set to true when the user agrees to use sfio. | |
2940 | It is set to false when sfio is not available or when the user | |
2941 | explicitely requests not to use sfio. It is here primarily so | |
2942 | that command-line settings can override the auto-detection of | |
2943 | d_sfio without running into a "WHOA THERE". | |
2944 | ||
d7418ba7 | 2945 | useshrplib (libperl.U): |
2946 | This variable is set to 'yes' if the user wishes | |
2947 | to build a shared libperl, and 'no' otherwise. | |
2948 | ||
dfe9444c AD |
2949 | usethreads (usethreads.U): |
2950 | This variable conditionally defines the USE_THREADS symbol, | |
2951 | and indicates that Perl should be built to use threads. | |
2952 | ||
2953 | usevfork (d_vfork.U): | |
2954 | This variable is set to true when the user accepts to use vfork. | |
2955 | It is set to false when no vfork is available or when the user | |
2956 | explicitely requests not to use vfork. | |
2957 | ||
2958 | usrinc (usrinc.U): | |
2959 | This variable holds the path of the include files, which is | |
2960 | usually /usr/include. It is mainly used by other Configure units. | |
2961 | ||
3a6175e1 AD |
2962 | uuname (Loc.U): |
2963 | This variable is defined but not used by Configure. | |
2964 | The value is a plain '' and is not useful. | |
2965 | ||
bfb7748a AD |
2966 | version (patchlevel.U): |
2967 | The full version number of this package. This combines | |
2968 | baserev, patchlevel, and subversion to get the full | |
2969 | version number, including any possible subversions. Care | |
2970 | is taken to use the C locale in order to get something | |
2971 | like 5.004 instead of 5,004. This is unique to perl. | |
2972 | ||
3a6175e1 AD |
2973 | vi (Loc.U): |
2974 | This variable is defined but not used by Configure. | |
2975 | The value is a plain '' and is not useful. | |
2976 | ||
d7418ba7 | 2977 | voidflags (voidflags.U): |
2978 | This variable contains the eventual value of the VOIDFLAGS symbol, | |
2979 | which indicates how much support of the void type is given by this | |
2980 | compiler. See VOIDFLAGS for more info. | |
2981 | ||
732c9516 JH |
2982 | xlibpth (libpth.U): |
2983 | This variable holds extra path (space-separated) used to find | |
2984 | libraries on this platform, for example CPU-specific libraries | |
2985 | (on multi-CPU platforms) may be listed here. | |
2986 | ||
3a6175e1 AD |
2987 | zcat (Loc.U): |
2988 | This variable is defined but not used by Configure. | |
2989 | The value is a plain '' and is not useful. | |
2990 | ||
2991 | zip (Loc.U): | |
2992 | This variable is be used internally by Configure to determine the | |
2993 | full pathname (if any) of the zip program. After Configure runs, | |
2994 | the value is reset to a plain "zip" and is not useful. | |
2995 |