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129 | .\" ======================================================================== | |
130 | .\" | |
131 | .IX Title "ExtUtils::MM_Any 3" | |
132 | .TH ExtUtils::MM_Any 3 "2003-08-18" "perl v5.8.0" "User Contributed Perl Documentation" | |
133 | .SH "NAME" | |
134 | ExtUtils::MM_Any \- Platform\-agnostic MM methods | |
135 | .SH "SYNOPSIS" | |
136 | .IX Header "SYNOPSIS" | |
137 | .Vb 1 | |
138 | \& FOR INTERNAL USE ONLY! | |
139 | .Ve | |
140 | .PP | |
141 | .Vb 1 | |
142 | \& package ExtUtils::MM_SomeOS; | |
143 | .Ve | |
144 | .PP | |
145 | .Vb 4 | |
146 | \& # Temporarily, you have to subclass both. Put MM_Any first. | |
147 | \& require ExtUtils::MM_Any; | |
148 | \& require ExtUtils::MM_Unix; | |
149 | \& @ISA = qw(ExtUtils::MM_Any ExtUtils::Unix); | |
150 | .Ve | |
151 | .SH "DESCRIPTION" | |
152 | .IX Header "DESCRIPTION" | |
153 | \&\fB\s-1FOR\s0 \s-1INTERNAL\s0 \s-1USE\s0 \s-1ONLY\s0!\fR | |
154 | .PP | |
155 | ExtUtils::MM_Any is a superclass for the ExtUtils::MM_* set of | |
156 | modules. It contains methods which are either inherently | |
157 | cross-platform or are written in a cross-platform manner. | |
158 | .PP | |
159 | Subclass off of ExtUtils::MM_Any \fIand\fR ExtUtils::MM_Unix. This is a | |
160 | temporary solution. | |
161 | .PP | |
162 | \&\fB\s-1THIS\s0 \s-1MAY\s0 \s-1BE\s0 \s-1TEMPORARY\s0!\fR | |
163 | .SH "Inherently Cross-Platform Methods" | |
164 | .IX Header "Inherently Cross-Platform Methods" | |
165 | These are methods which are by their nature cross-platform and should | |
166 | always be cross\-platform. | |
167 | .IP "installvars" 4 | |
168 | .IX Item "installvars" | |
169 | .Vb 1 | |
170 | \& my @installvars = $mm->installvars; | |
171 | .Ve | |
172 | .Sp | |
173 | A list of all the INSTALL* variables without the \s-1INSTALL\s0 prefix. Useful | |
174 | for iteration or building related variable sets. | |
175 | .IP "os_flavor_is" 4 | |
176 | .IX Item "os_flavor_is" | |
177 | .Vb 2 | |
178 | \& $mm->os_flavor_is($this_flavor); | |
179 | \& $mm->os_flavor_is(@one_of_these_flavors); | |
180 | .Ve | |
181 | .Sp | |
182 | Checks to see if the current operating system is one of the given flavors. | |
183 | .Sp | |
184 | This is useful for code like: | |
185 | .Sp | |
186 | .Vb 6 | |
187 | \& if( $mm->os_flavor_is('Unix') ) { | |
188 | \& $out = `foo 2>&1`; | |
189 | \& } | |
190 | \& else { | |
191 | \& $out = `foo`; | |
192 | \& } | |
193 | .Ve | |
194 | .IP "dir_targets \fB\s-1DEPRECATED\s0\fR" 4 | |
195 | .IX Item "dir_targets DEPRECATED" | |
196 | .Vb 1 | |
197 | \& my $make_frag = $mm->dir_target(@directories); | |
198 | .Ve | |
199 | .Sp | |
200 | \&\fIThis function is deprecated\fR its use is no longer necessary and is | |
201 | \&\fIonly provided for backwards compatibility\fR. It is now a no\-op. | |
202 | blibdirs_target provides a much simpler mechanism and \fIpm_to_blib()\fR can | |
203 | create its own directories anyway. | |
204 | .IP "blibdirs_target (o)" 4 | |
205 | .IX Item "blibdirs_target (o)" | |
206 | .Vb 1 | |
207 | \& my $make_frag = $mm->blibdirs_target; | |
208 | .Ve | |
209 | .Sp | |
210 | Creates the blibdirs.ts target which creates all the directories we use in | |
211 | blib/. | |
212 | .Sh "File::Spec wrappers" | |
213 | .IX Subsection "File::Spec wrappers" | |
214 | ExtUtils::MM_Any is a subclass of File::Spec. The methods noted here | |
215 | override File::Spec. | |
216 | .IP "catfile" 4 | |
217 | .IX Item "catfile" | |
218 | File::Spec <= 0.83 has a bug where the file part of catfile is not | |
219 | canonicalized. This override fixes that bug. | |
220 | .SH "Thought To Be Cross-Platform Methods" | |
221 | .IX Header "Thought To Be Cross-Platform Methods" | |
222 | These are methods which are thought to be cross-platform by virtue of | |
223 | having been written in a way to avoid incompatibilities. They may | |
224 | require partial overrides. | |
225 | .IP "\fBsplit_command\fR" 4 | |
226 | .IX Item "split_command" | |
227 | .Vb 1 | |
228 | \& my @cmds = $MM->split_command($cmd, @args); | |
229 | .Ve | |
230 | .Sp | |
231 | Most \s-1OS\s0 have a maximum command length they can execute at once. Large | |
232 | modules can easily generate commands well past that limit. Its | |
233 | necessary to split long commands up into a series of shorter commands. | |
234 | .Sp | |
235 | \&\fIsplit_command()\fR will return a series of \f(CW@cmds\fR each processing part of | |
236 | the args. Collectively they will process all the arguments. Each | |
237 | individual line in \f(CW@cmds\fR will not be longer than the | |
238 | \&\f(CW$self\fR\->max_exec_len being careful to take into account macro expansion. | |
239 | .Sp | |
240 | $cmd should include any switches and repeated initial arguments. | |
241 | .Sp | |
242 | If no \f(CW@args\fR are given, no \f(CW@cmds\fR will be returned. | |
243 | .Sp | |
244 | Pairs of arguments will always be preserved in a single command, this | |
245 | is a heuristic for things like pm_to_blib and pod2man which work on | |
246 | pairs of arguments. This makes things like this safe: | |
247 | .Sp | |
248 | .Vb 1 | |
249 | \& $self->split_command($cmd, %pod2man); | |
250 | .Ve | |
251 | .IP "\fBecho\fR" 4 | |
252 | .IX Item "echo" | |
253 | .Vb 3 | |
254 | \& my @commands = $MM->echo($text); | |
255 | \& my @commands = $MM->echo($text, $file); | |
256 | \& my @commands = $MM->echo($text, $file, $appending); | |
257 | .Ve | |
258 | .Sp | |
259 | Generates a set of \f(CW@commands\fR which print the \f(CW$text\fR to a \f(CW$file\fR. | |
260 | .Sp | |
261 | If \f(CW$file\fR is not given, output goes to \s-1STDOUT\s0. | |
262 | .Sp | |
263 | If \f(CW$appending\fR is true the \f(CW$file\fR will be appended to rather than | |
264 | overwritten. | |
265 | .IP "init_VERSION" 4 | |
266 | .IX Item "init_VERSION" | |
267 | .Vb 1 | |
268 | \& $mm->init_VERSION | |
269 | .Ve | |
270 | .Sp | |
271 | Initialize macros representing versions of MakeMaker and other tools | |
272 | .Sp | |
273 | \&\s-1MAKEMAKER:\s0 path to the MakeMaker module. | |
274 | .Sp | |
275 | \&\s-1MM_VERSION:\s0 ExtUtils::MakeMaker Version | |
276 | .Sp | |
277 | \&\s-1MM_REVISION:\s0 ExtUtils::MakeMaker version control revision (for backwards | |
278 | compat) | |
279 | .Sp | |
280 | \&\s-1VERSION:\s0 version of your module | |
281 | .Sp | |
282 | \&\s-1VERSION_MACRO:\s0 which macro represents the version (usually '\s-1VERSION\s0') | |
283 | .Sp | |
284 | \&\s-1VERSION_SYM:\s0 like version but safe for use as an \s-1RCS\s0 revision number | |
285 | .Sp | |
286 | \&\s-1DEFINE_VERSION:\s0 \-D line to set the module version when compiling | |
287 | .Sp | |
288 | \&\s-1XS_VERSION:\s0 version in your .xs file. Defaults to $(\s-1VERSION\s0) | |
289 | .Sp | |
290 | \&\s-1XS_VERSION_MACRO:\s0 which macro represents the \s-1XS\s0 version. | |
291 | .Sp | |
292 | \&\s-1XS_DEFINE_VERSION:\s0 \-D line to set the xs version when compiling. | |
293 | .Sp | |
294 | Called by init_main. | |
295 | .IP "wraplist" 4 | |
296 | .IX Item "wraplist" | |
297 | Takes an array of items and turns them into a well-formatted list of | |
298 | arguments. In most cases this is simply something like: | |
299 | .Sp | |
300 | .Vb 3 | |
301 | \& FOO \e | |
302 | \& BAR \e | |
303 | \& BAZ | |
304 | .Ve | |
305 | .IP "manifypods" 4 | |
306 | .IX Item "manifypods" | |
307 | Defines targets and routines to translate the pods into manpages and | |
308 | put them into the INST_* directories. | |
309 | .IP "manifypods_target" 4 | |
310 | .IX Item "manifypods_target" | |
311 | .Vb 1 | |
312 | \& my $manifypods_target = $self->manifypods_target; | |
313 | .Ve | |
314 | .Sp | |
315 | Generates the manifypods target. This target generates man pages from | |
316 | all \s-1POD\s0 files in \s-1MAN1PODS\s0 and \s-1MAN3PODS\s0. | |
317 | .IP "makemakerdflt_target" 4 | |
318 | .IX Item "makemakerdflt_target" | |
319 | .Vb 1 | |
320 | \& my $make_frag = $mm->makemakerdflt_target | |
321 | .Ve | |
322 | .Sp | |
323 | Returns a make fragment with the makemakerdeflt_target specified. | |
324 | This target is the first target in the Makefile, is the default target | |
325 | and simply points off to 'all' just in case any make variant gets | |
326 | confused or something gets snuck in before the real 'all' target. | |
327 | .IP "special_targets" 4 | |
328 | .IX Item "special_targets" | |
329 | .Vb 1 | |
330 | \& my $make_frag = $mm->special_targets | |
331 | .Ve | |
332 | .Sp | |
333 | Returns a make fragment containing any targets which have special | |
334 | meaning to make. For example, .SUFFIXES and .PHONY. | |
335 | .IP "POD2MAN_macro" 4 | |
336 | .IX Item "POD2MAN_macro" | |
337 | .Vb 1 | |
338 | \& my $pod2man_macro = $self->POD2MAN_macro | |
339 | .Ve | |
340 | .Sp | |
341 | Returns a definition for the \s-1POD2MAN\s0 macro. This is a program | |
342 | which emulates the pod2man utility. You can add more switches to the | |
343 | command by simply appending them on the macro. | |
344 | .Sp | |
345 | Typical usage: | |
346 | .Sp | |
347 | .Vb 1 | |
348 | \& $(POD2MAN) --section=3 --perm_rw=$(PERM_RW) podfile1 man_page1 ... | |
349 | .Ve | |
350 | .IP "test_via_harness" 4 | |
351 | .IX Item "test_via_harness" | |
352 | .Vb 1 | |
353 | \& my $command = $mm->test_via_harness($perl, $tests); | |
354 | .Ve | |
355 | .Sp | |
356 | Returns a \f(CW$command\fR line which runs the given set of \f(CW$tests\fR with | |
357 | Test::Harness and the given \f(CW$perl\fR. | |
358 | .Sp | |
359 | Used on the t/*.t files. | |
360 | .IP "test_via_script" 4 | |
361 | .IX Item "test_via_script" | |
362 | .Vb 1 | |
363 | \& my $command = $mm->test_via_script($perl, $script); | |
364 | .Ve | |
365 | .Sp | |
366 | Returns a \f(CW$command\fR line which just runs a single test without | |
367 | Test::Harness. No checks are done on the results, they're just | |
368 | printed. | |
369 | .Sp | |
370 | Used for test.pl, since they don't always follow Test::Harness | |
371 | formatting. | |
372 | .IP "libscan" 4 | |
373 | .IX Item "libscan" | |
374 | .Vb 1 | |
375 | \& my $wanted = $self->libscan($path); | |
376 | .Ve | |
377 | .Sp | |
378 | Takes a path to a file or dir and returns an empty string if we don't | |
379 | want to include this file in the library. Otherwise it returns the | |
380 | the \f(CW$path\fR unchanged. | |
381 | .Sp | |
382 | Mainly used to exclude \s-1RCS\s0, \s-1CVS\s0, and \s-1SCCS\s0 directories from | |
383 | installation. | |
384 | .IP "tool_autosplit" 4 | |
385 | .IX Item "tool_autosplit" | |
386 | Defines a simple perl call that runs autosplit. May be deprecated by | |
387 | pm_to_blib soon. | |
388 | .IP "all_target" 4 | |
389 | .IX Item "all_target" | |
390 | Generate the default target 'all'. | |
391 | .IP "metafile_target" 4 | |
392 | .IX Item "metafile_target" | |
393 | .Vb 1 | |
394 | \& my $target = $mm->metafile_target; | |
395 | .Ve | |
396 | .Sp | |
397 | Generate the metafile target. | |
398 | .Sp | |
399 | Writes the file \s-1META\s0.yml, \s-1YAML\s0 encoded meta-data about the module. The | |
400 | format follows Module::Build's as closely as possible. Additionally, we | |
401 | include: | |
402 | .Sp | |
403 | .Vb 2 | |
404 | \& version_from | |
405 | \& installdirs | |
406 | .Ve | |
407 | .IP "signature_target" 4 | |
408 | .IX Item "signature_target" | |
409 | .Vb 1 | |
410 | \& my $target = $mm->signature_target; | |
411 | .Ve | |
412 | .Sp | |
413 | Generate the signature target. | |
414 | .Sp | |
415 | Writes the file \s-1SIGNATURE\s0 with \*(L"cpansign \-s\*(R". | |
416 | .IP "metafile_addtomanifest_target" 4 | |
417 | .IX Item "metafile_addtomanifest_target" | |
418 | .Vb 1 | |
419 | \& my $target = $mm->metafile_addtomanifest_target | |
420 | .Ve | |
421 | .Sp | |
422 | Adds the \s-1META\s0.yml file to the \s-1MANIFEST\s0. | |
423 | .IP "signature_addtomanifest_target" 4 | |
424 | .IX Item "signature_addtomanifest_target" | |
425 | .Vb 1 | |
426 | \& my $target = $mm->signature_addtomanifest_target | |
427 | .Ve | |
428 | .Sp | |
429 | Adds the \s-1META\s0.yml file to the \s-1MANIFEST\s0. | |
430 | .Sh "Abstract methods" | |
431 | .IX Subsection "Abstract methods" | |
432 | Methods which cannot be made cross-platform and each subclass will | |
433 | have to do their own implementation. | |
434 | .IP "oneliner" 4 | |
435 | .IX Item "oneliner" | |
436 | .Vb 2 | |
437 | \& my $oneliner = $MM->oneliner($perl_code); | |
438 | \& my $oneliner = $MM->oneliner($perl_code, \e@switches); | |
439 | .Ve | |
440 | .Sp | |
441 | This will generate a perl one-liner safe for the particular platform | |
442 | you're on based on the given \f(CW$perl_code\fR and \f(CW@switches\fR (a \-e is | |
443 | assumed) suitable for using in a make target. It will use the proper | |
444 | shell quoting and escapes. | |
445 | .Sp | |
446 | $(\s-1PERLRUN\s0) will be used as perl. | |
447 | .Sp | |
448 | Any newlines in \f(CW$perl_code\fR will be escaped. Leading and trailing | |
449 | newlines will be stripped. Makes this idiom much easier: | |
450 | .Sp | |
451 | .Vb 4 | |
452 | \& my $code = $MM->oneliner(<<'CODE', [...switches...]); | |
453 | \&some code here | |
454 | \&another line here | |
455 | \&CODE | |
456 | .Ve | |
457 | .Sp | |
458 | Usage might be something like: | |
459 | .Sp | |
460 | .Vb 3 | |
461 | \& # an echo emulation | |
462 | \& $oneliner = $MM->oneliner('print "Foo\en"'); | |
463 | \& $make = '$oneliner > somefile'; | |
464 | .Ve | |
465 | .Sp | |
466 | All dollar signs must be doubled in the \f(CW$perl_code\fR if you expect them | |
467 | to be interpreted normally, otherwise it will be considered a make | |
468 | macro. Also remember to quote make macros else it might be used as a | |
469 | bareword. For example: | |
470 | .Sp | |
471 | .Vb 2 | |
472 | \& # Assign the value of the $(VERSION_FROM) make macro to $vf. | |
473 | \& $oneliner = $MM->oneliner('$$vf = "$(VERSION_FROM)"'); | |
474 | .Ve | |
475 | .Sp | |
476 | Its currently very simple and may be expanded sometime in the figure | |
477 | to include more flexible code and switches. | |
478 | .IP "\fBquote_literal\fR" 4 | |
479 | .IX Item "quote_literal" | |
480 | .Vb 1 | |
481 | \& my $safe_text = $MM->quote_literal($text); | |
482 | .Ve | |
483 | .Sp | |
484 | This will quote \f(CW$text\fR so it is interpreted literally in the shell. | |
485 | .Sp | |
486 | For example, on Unix this would escape any single-quotes in \f(CW$text\fR and | |
487 | put single-quotes around the whole thing. | |
488 | .IP "\fBescape_newlines\fR" 4 | |
489 | .IX Item "escape_newlines" | |
490 | .Vb 1 | |
491 | \& my $escaped_text = $MM->escape_newlines($text); | |
492 | .Ve | |
493 | .Sp | |
494 | Shell escapes newlines in \f(CW$text\fR. | |
495 | .IP "max_exec_len" 4 | |
496 | .IX Item "max_exec_len" | |
497 | .Vb 1 | |
498 | \& my $max_exec_len = $MM->max_exec_len; | |
499 | .Ve | |
500 | .Sp | |
501 | Calculates the maximum command size the \s-1OS\s0 can exec. Effectively, | |
502 | this is the max size of a shell command line. | |
503 | .IP "\fBinit_others\fR" 4 | |
504 | .IX Item "init_others" | |
505 | .Vb 1 | |
506 | \& $MM->init_others(); | |
507 | .Ve | |
508 | .Sp | |
509 | Initializes the macro definitions used by \fItools_other()\fR and places them | |
510 | in the \f(CW$MM\fR object. | |
511 | .Sp | |
512 | If there is no description, its the same as the parameter to | |
513 | \&\fIWriteMakefile()\fR documented in ExtUtils::MakeMaker. | |
514 | .Sp | |
515 | Defines at least these macros. | |
516 | .Sp | |
517 | .Vb 1 | |
518 | \& Macro Description | |
519 | .Ve | |
520 | .Sp | |
521 | .Vb 2 | |
522 | \& NOOP Do nothing | |
523 | \& NOECHO Tell make not to display the command itself | |
524 | .Ve | |
525 | .Sp | |
526 | .Vb 4 | |
527 | \& MAKEFILE | |
528 | \& FIRST_MAKEFILE | |
529 | \& MAKEFILE_OLD | |
530 | \& MAKE_APERL_FILE File used by MAKE_APERL | |
531 | .Ve | |
532 | .Sp | |
533 | .Vb 2 | |
534 | \& SHELL Program used to run | |
535 | \& shell commands | |
536 | .Ve | |
537 | .Sp | |
538 | .Vb 9 | |
539 | \& ECHO Print text adding a newline on the end | |
540 | \& RM_F Remove a file | |
541 | \& RM_RF Remove a directory | |
542 | \& TOUCH Update a file's timestamp | |
543 | \& TEST_F Test for a file's existence | |
544 | \& CP Copy a file | |
545 | \& MV Move a file | |
546 | \& CHMOD Change permissions on a | |
547 | \& file | |
548 | .Ve | |
549 | .Sp | |
550 | .Vb 2 | |
551 | \& UMASK_NULL Nullify umask | |
552 | \& DEV_NULL Supress all command output | |
553 | .Ve | |
554 | .IP "init_DIRFILESEP" 4 | |
555 | .IX Item "init_DIRFILESEP" | |
556 | .Vb 2 | |
557 | \& $MM->init_DIRFILESEP; | |
558 | \& my $dirfilesep = $MM->{DIRFILESEP}; | |
559 | .Ve | |
560 | .Sp | |
561 | Initializes the \s-1DIRFILESEP\s0 macro which is the seperator between the | |
562 | directory and filename in a filepath. ie. / on Unix, \e on Win32 and | |
563 | nothing on \s-1VMS\s0. | |
564 | .Sp | |
565 | For example: | |
566 | .Sp | |
567 | .Vb 2 | |
568 | \& # instead of $(INST_ARCHAUTODIR)/extralibs.ld | |
569 | \& $(INST_ARCHAUTODIR)$(DIRFILESEP)extralibs.ld | |
570 | .Ve | |
571 | .Sp | |
572 | Something of a hack but it prevents a lot of code duplication between | |
573 | MM_* variants. | |
574 | .Sp | |
575 | Do not use this as a seperator between directories. Some operating | |
576 | systems use different seperators between subdirectories as between | |
577 | directories and filenames (for example: VOLUME:[dir1.dir2]file on \s-1VMS\s0). | |
578 | .IP "init_linker" 4 | |
579 | .IX Item "init_linker" | |
580 | .Vb 1 | |
581 | \& $mm->init_linker; | |
582 | .Ve | |
583 | .Sp | |
584 | Initialize macros which have to do with linking. | |
585 | .Sp | |
586 | \&\s-1PERL_ARCHIVE:\s0 path to libperl.a equivalent to be linked to dynamic | |
587 | extensions. | |
588 | .Sp | |
589 | \&\s-1PERL_ARCHIVE_AFTER:\s0 path to a library which should be put on the | |
590 | linker command line \fIafter\fR the external libraries to be linked to | |
591 | dynamic extensions. This may be needed if the linker is one\-pass, and | |
592 | Perl includes some overrides for C \s-1RTL\s0 functions, such as \fImalloc()\fR. | |
593 | .Sp | |
594 | \&\s-1EXPORT_LIST:\s0 name of a file that is passed to linker to define symbols | |
595 | to be exported. | |
596 | .Sp | |
597 | Some OSes do not need these in which case leave it blank. | |
598 | .IP "init_platform" 4 | |
599 | .IX Item "init_platform" | |
600 | .Vb 1 | |
601 | \& $mm->init_platform | |
602 | .Ve | |
603 | .Sp | |
604 | Initialize any macros which are for platform specific use only. | |
605 | .Sp | |
606 | A typical one is the version number of your \s-1OS\s0 specific mocule. | |
607 | (ie. MM_Unix_VERSION or \s-1MM_VMS_VERSION\s0). | |
608 | .IP "platform_constants" 4 | |
609 | .IX Item "platform_constants" | |
610 | .Vb 1 | |
611 | \& my $make_frag = $mm->platform_constants | |
612 | .Ve | |
613 | .Sp | |
614 | Returns a make fragment defining all the macros initialized in | |
615 | \&\fIinit_platform()\fR rather than put them in \fIconstants()\fR. | |
616 | .IP "os_flavor" 4 | |
617 | .IX Item "os_flavor" | |
618 | .Vb 1 | |
619 | \& my @os_flavor = $mm->os_flavor; | |
620 | .Ve | |
621 | .Sp | |
622 | @os_flavor is the style of operating system this is, usually | |
623 | corresponding to the MM_*.pm file we're using. | |
624 | .Sp | |
625 | The first element of \f(CW@os_flavor\fR is the major family (ie. Unix, | |
626 | Windows, \s-1VMS\s0, \s-1OS/2\s0, etc...) and the rest are sub families. | |
627 | .Sp | |
628 | Some examples: | |
629 | .Sp | |
630 | .Vb 6 | |
631 | \& Cygwin98 ('Unix', 'Cygwin', 'Cygwin9x') | |
632 | \& Windows NT ('Win32', 'WinNT') | |
633 | \& Win98 ('Win32', 'Win9x') | |
634 | \& Linux ('Unix', 'Linux') | |
635 | \& MacOS X ('Unix', 'Darwin', 'MacOS', 'MacOS X') | |
636 | \& OS/2 ('OS/2') | |
637 | .Ve | |
638 | .Sp | |
639 | This is used to write code for styles of operating system. | |
640 | See \fIos_flavor_is()\fR for use. | |
641 | .SH "AUTHOR" | |
642 | .IX Header "AUTHOR" | |
643 | Michael G Schwern <schwern@pobox.com> and the denizens of | |
644 | makemaker@perl.org with code from ExtUtils::MM_Unix and | |
645 | ExtUtils::MM_Win32. |