1 If you read this file _as_is_, just ignore the funny characters you
2 see. It is written in the POD format (see F<pod/perlpod.pod>) which is
3 specially designed to be readable as is.
7 perlcygwin - Perl for Cygwin
11 This document will help you configure, make, test and install Perl
12 on Cygwin. This document also describes features of Cygwin that will
13 affect how Perl behaves at runtime.
15 B<NOTE:> There are pre-built Perl packages available for Cygwin and a
16 version of Perl is provided in the normal Cygwin install. If you do
17 not need to customize the configuration, consider using one of those
21 =head1 PREREQUISITES FOR COMPILING PERL ON CYGWIN
23 =head2 Cygwin = GNU+Cygnus+Windows (Don't leave UNIX without it)
25 The Cygwin tools are ports of the popular GNU development tools for Win32
26 platforms. They run thanks to the Cygwin library which provides the UNIX
27 system calls and environment these programs expect. More information
28 about this project can be found at:
30 L<http://www.cygwin.com/>
32 A recent net or commercial release of Cygwin is required.
34 At the time this document was last updated, Cygwin 1.7.16 was current.
37 =head2 Cygwin Configuration
39 While building Perl some changes may be necessary to your Cygwin setup so
40 that Perl builds cleanly. These changes are B<not> required for normal
43 B<NOTE:> The binaries that are built will run on all Win32 versions.
44 They do not depend on your host system (WinXP/Win2K/Win7) or your
45 Cygwin configuration (binary/text mounts, cvgserver).
46 The only dependencies come from hard-coded pathnames like F</usr/local>.
47 However, your host system and Cygwin configuration will affect Perl's
48 runtime behavior (see L</"TEST">).
54 Set the C<PATH> environment variable so that Configure finds the Cygwin
55 versions of programs. Any not-needed Windows directories should be removed or
56 moved to the end of your C<PATH>.
60 If you do not have I<nroff> (which is part of the I<groff> package),
61 Configure will B<not> prompt you to install I<man> pages.
65 =head1 CONFIGURE PERL ON CYGWIN
67 The default options gathered by Configure with the assistance of
68 F<hints/cygwin.sh> will build a Perl that supports dynamic loading
69 (which requires a shared F<cygperl5_16.dll>).
71 This will run Configure and keep a record:
73 ./Configure 2>&1 | tee log.configure
75 If you are willing to accept all the defaults run Configure with B<-de>.
76 However, several useful customizations are available.
78 =head2 Stripping Perl Binaries on Cygwin
80 It is possible to strip the EXEs and DLLs created by the build process.
81 The resulting binaries will be significantly smaller. If you want the
82 binaries to be stripped, you can either add a B<-s> option when Configure
85 Any additional ld flags (NOT including libraries)? [none] -s
86 Any special flags to pass to g++ to create a dynamically loaded library?
88 Any special flags to pass to gcc to use dynamic linking? [none] -s
90 or you can edit F<hints/cygwin.sh> and uncomment the relevant variables
91 near the end of the file.
93 =head2 Optional Libraries for Perl on Cygwin
95 Several Perl functions and modules depend on the existence of
96 some optional libraries. Configure will find them if they are
97 installed in one of the directories listed as being used for library
98 searches. Pre-built packages for most of these are available from
105 The crypt package distributed with Cygwin is a Linux compatible 56-bit
106 DES crypt port by Corinna Vinschen.
108 Alternatively, the crypt libraries in GNU libc have been ported to Cygwin.
110 =item * C<-lgdbm_compat> (C<use GDBM_File>)
112 GDBM is available for Cygwin.
114 NOTE: The GDBM library only works on NTFS partitions.
116 =item * C<-ldb> (C<use DB_File>)
118 BerkeleyDB is available for Cygwin.
120 NOTE: The BerkeleyDB library only completely works on NTFS partitions.
122 =item * C<cygserver> (C<use IPC::SysV>)
124 A port of SysV IPC is available for Cygwin.
126 NOTE: This has B<not> been extensively tested. In particular,
127 C<d_semctl_semun> is undefined because it fails a Configure test
128 and on Win9x the I<shm*()> functions seem to hang. It also creates
129 a compile time dependency because F<perl.h> includes F<<sys/ipc.h>>
130 and F<<sys/sem.h>> (which will be required in the future when compiling
131 CPAN modules). CURRENTLY NOT SUPPORTED!
135 Included with the standard Cygwin netrelease is the inetutils package
136 which includes libutil.a.
140 =head2 Configure-time Options for Perl on Cygwin
142 The F<INSTALL> document describes several Configure-time options. Some of
143 these will work with Cygwin, others are not yet possible. Also, some of
144 these are experimental. You can either select an option when Configure
145 prompts you or you can define (undefine) symbols on the command line.
151 Undefining this symbol forces Perl to be compiled statically.
153 =item * C<-Dusemymalloc>
155 By default Perl does not use the C<malloc()> included with the Perl source,
156 because it was slower and not entirely thread-safe. If you want to force
157 Perl to build with the old -Dusemymalloc define this.
159 =item * C<-Uuseperlio>
161 Undefining this symbol disables the PerlIO abstraction. PerlIO is now the
162 default; it is not recommended to disable PerlIO.
164 =item * C<-Dusemultiplicity>
166 Multiplicity is required when embedding Perl in a C program and using
167 more than one interpreter instance. This is only required when you build
168 a not-threaded perl with C<-Uuseithreads>.
170 =item * C<-Uuse64bitint>
172 By default Perl uses 64 bit integers. If you want to use smaller 32 bit
173 integers, define this symbol.
175 =item * C<-Duselongdouble>
177 I<gcc> supports long doubles (12 bytes). However, several additional
178 long double math functions are necessary to use them within Perl
179 (I<{atan2, cos, exp, floor, fmod, frexp, isnan, log, modf, pow, sin, sqrt}l,
181 These are B<not> yet available with newlib, the Cygwin libc.
183 =item * C<-Uuseithreads>
185 Define this symbol if you want not-threaded faster perl.
187 =item * C<-Duselargefiles>
189 Cygwin uses 64-bit integers for internal size and position calculations,
190 this will be correctly detected and defined by Configure.
192 =item * C<-Dmksymlinks>
194 Use this to build perl outside of the source tree. Details can be
195 found in the F<INSTALL> document. This is the recommended way to
196 build perl from sources.
200 =head2 Suspicious Warnings on Cygwin
202 You may see some messages during Configure that seem suspicious.
206 =item * Win9x and C<d_eofnblk>
208 Win9x does not correctly report C<EOF> with a non-blocking read on a
209 closed pipe. You will see the following messages:
211 But it also returns -1 to signal EOF, so be careful!
212 WARNING: you can't distinguish between EOF and no data!
214 *** WHOA THERE!!! ***
215 The recommended value for $d_eofnblk on this machine was "define"!
216 Keep the recommended value? [y]
218 At least for consistency with WinNT, you should keep the recommended
221 =item * Compiler/Preprocessor defines
223 The following error occurs because of the Cygwin C<#define> of
226 Guessing which symbols your C compiler and preprocessor define...
227 try.c:<line#>: missing binary operator
229 This failure does not seem to cause any problems. With older gcc
230 versions, "parse error" is reported instead of "missing binary
235 =head1 MAKE ON CYGWIN
237 Simply run I<make> and wait:
239 make 2>&1 | tee log.make
241 =head1 TEST ON CYGWIN
243 There are two steps to running the test suite:
245 make test 2>&1 | tee log.make-test
247 cd t; ./perl harness 2>&1 | tee ../log.harness
249 The same tests are run both times, but more information is provided when
250 running as C<./perl harness>.
252 Test results vary depending on your host system and your Cygwin
253 configuration. If a test can pass in some Cygwin setup, it is always
254 attempted and explainable test failures are documented. It is possible
255 for Perl to pass all the tests, but it is more likely that some tests
256 will fail for one of the reasons listed below.
258 =head2 File Permissions on Cygwin
260 UNIX file permissions are based on sets of mode bits for
261 {read,write,execute} for each {user,group,other}. By default Cygwin
262 only tracks the Win32 read-only attribute represented as the UNIX file
263 user write bit (files are always readable, files are executable if they
264 have a F<.{com,bat,exe}> extension or begin with C<#!>, directories are
265 always readable and executable). On WinNT with the I<ntea> C<CYGWIN>
266 setting, the additional mode bits are stored as extended file attributes.
267 On WinNT with the default I<ntsec> C<CYGWIN> setting, permissions use the
268 standard WinNT security descriptors and access control lists. Without one of
269 these options, these tests will fail (listing not updated yet):
271 Failed Test List of failed
272 ------------------------------------
282 op/stat.t 9, 20 (.tmp not an executable extension)
284 =head2 NDBM_File and ODBM_File do not work on FAT filesystems
286 Do not use NDBM_File or ODBM_File on FAT filesystem. They can be
287 built on a FAT filesystem, but many tests will fail:
289 ../ext/NDBM_File/ndbm.t 13 3328 71 59 83.10% 1-2 4 16-71
290 ../ext/ODBM_File/odbm.t 255 65280 ?? ?? % ??
291 ../lib/AnyDBM_File.t 2 512 12 2 16.67% 1 4
292 ../lib/Memoize/t/errors.t 0 139 11 5 45.45% 7-11
293 ../lib/Memoize/t/tie_ndbm.t 13 3328 4 4 100.00% 1-4
294 run/fresh_perl.t 97 1 1.03% 91
296 If you intend to run only on FAT (or if using AnyDBM_File on FAT),
297 run Configure with the -Ui_ndbm and -Ui_dbm options to prevent
298 NDBM_File and ODBM_File being built.
300 With NTFS (and no CYGWIN=nontsec), there should be no problems even if
301 perl was built on FAT.
303 =head2 C<fork()> failures in io_* tests
305 A C<fork()> failure may result in the following tests failing:
307 ext/IO/lib/IO/t/io_multihomed.t
308 ext/IO/lib/IO/t/io_sock.t
309 ext/IO/lib/IO/t/io_unix.t
311 See comment on fork in L</Miscellaneous> below.
313 =head1 Specific features of the Cygwin port
315 =head2 Script Portability on Cygwin
317 Cygwin does an outstanding job of providing UNIX-like semantics on top of
318 Win32 systems. However, in addition to the items noted above, there are
319 some differences that you should know about. This is a very brief guide
320 to portability, more information can be found in the Cygwin documentation.
326 Cygwin pathnames are separated by forward (F</>) slashes, Universal
327 Naming Codes (F<//UNC>) are also supported Since cygwin-1.7 non-POSIX
328 pathnames are discouraged. Names may contain all printable
331 File names are case insensitive, but case preserving. A pathname that
332 contains a backslash or drive letter is a Win32 pathname, and not
333 subject to the translations applied to POSIX style pathnames, but
334 cygwin will warn you, so better convert them to POSIX.
336 For conversion we have C<Cygwin::win_to_posix_path()> and
337 C<Cygwin::posix_to_win_path()>.
339 Since cygwin-1.7 pathnames are UTF-8 encoded.
343 Since cygwin-1.7 textmounts are deprecated and strongly discouraged.
345 When a file is opened it is in either text or binary mode. In text mode
346 a file is subject to CR/LF/Ctrl-Z translations. With Cygwin, the default
347 mode for an C<open()> is determined by the mode of the mount that underlies
348 the file. See L</Cygwin::is_binmount>(). Perl provides a C<binmode()> function
349 to set binary mode on files that otherwise would be treated as text.
350 C<sysopen()> with the C<O_TEXT> flag sets text mode on files that otherwise
351 would be treated as binary:
353 sysopen(FOO, "bar", O_WRONLY|O_CREAT|O_TEXT)
355 C<lseek()>, C<tell()> and C<sysseek()> only work with files opened in binary
358 The text/binary issue is covered at length in the Cygwin documentation.
362 PerlIO overrides the default Cygwin Text/Binary behaviour. A file will
363 always be treated as binary, regardless of the mode of the mount it lives
364 on, just like it is in UNIX. So CR/LF translation needs to be requested in
365 either the C<open()> call like this:
367 open(FH, ">:crlf", "out.txt");
369 which will do conversion from LF to CR/LF on the output, or in the
370 environment settings (add this to your .bashrc):
374 which will pull in the crlf PerlIO layer which does LF -> CRLF conversion
375 on every output generated by perl.
379 The Cygwin C<stat()>, C<lstat()> and C<readlink()> functions make the F<.exe>
380 extension transparent by looking for F<foo.exe> when you ask for F<foo>
381 (unless a F<foo> also exists). Cygwin does not require a F<.exe>
382 extension, but I<gcc> adds it automatically when building a program.
383 However, when accessing an executable as a normal file (e.g., I<cp>
384 in a makefile) the F<.exe> is not transparent. The I<install> program
385 included with Cygwin automatically appends a F<.exe> when necessary.
387 =item * Cygwin vs. Windows process ids
389 Cygwin processes have their own pid, which is different from the
390 underlying windows pid. Most posix compliant Proc functions expect
391 the cygwin pid, but several Win32::Process functions expect the
392 winpid. E.g. C<$$> is the cygwin pid of F</usr/bin/perl>, which is not
393 the winpid. Use C<Cygwin::pid_to_winpid()> and C<Cygwin::winpid_to_pid()>
394 to translate between them.
396 =item * Cygwin vs. Windows errors
398 Under Cygwin, $^E is the same as $!. When using L<Win32 API Functions|Win32>,
399 use C<Win32::GetLastError()> to get the last Windows error.
401 =item * rebase errors on fork or system
403 Using C<fork()> or C<system()> out to another perl after loading multiple dlls
404 may result on a DLL baseaddress conflict. The internal cygwin error
405 looks like like the following:
407 0 [main] perl 8916 child_info_fork::abort: data segment start: parent
408 (0xC1A000) != child(0xA6A000)
412 183 [main] perl 3588 C:\cygwin\bin\perl.exe: *** fatal error - unable to remap
413 C:\cygwin\bin\cygsvn_subr-1-0.dll to same address as parent(0x6FB30000) != 0x6FE60000
414 46 [main] perl 3488 fork: child 3588 - died waiting for dll loading, errno11
416 See L<http://cygwin.com/faq/faq-nochunks.html#faq.using.fixing-fork-failures>
417 It helps if not too many DLLs are loaded in memory so the available address space is larger,
418 e.g. stopping the MS Internet Explorer might help.
420 Use the perlrebase or rebase utilities to resolve the conflicting dll addresses.
421 The rebase package is included in the Cygwin setup. Use F<setup.exe>
422 from L<http://www.cygwin.com/setup.exe> to install it.
424 1. kill all perl processes and run C<perlrebase> or
426 2. kill all cygwin processes and services, start dash from cmd.exe and run C<rebaseall>.
430 On WinNT C<chown()> can change a file's user and group IDs. On Win9x C<chown()>
431 is a no-op, although this is appropriate since there is no security model.
433 =item * Miscellaneous
435 File locking using the C<F_GETLK> command to C<fcntl()> is a stub that
438 Win9x can not C<rename()> an open file (although WinNT can).
440 The Cygwin C<chroot()> implementation has holes (it can not restrict file
441 access by native Win32 programs).
443 Inplace editing C<perl -i> of files doesn't work without doing a backup
444 of the file being edited C<perl -i.bak> because of windowish restrictions,
445 therefore Perl adds the suffix C<.bak> automatically if you use C<perl -i>
446 without specifying a backup extension.
450 =head2 Prebuilt methods:
456 Returns the current working directory.
458 =item C<Cygwin::pid_to_winpid>
460 Translates a cygwin pid to the corresponding Windows pid (which may or
461 may not be the same).
463 =item C<Cygwin::winpid_to_pid>
465 Translates a Windows pid to the corresponding cygwin pid (if any).
467 =item C<Cygwin::win_to_posix_path>
469 Translates a Windows path to the corresponding cygwin path respecting
470 the current mount points. With a second non-null argument returns an
471 absolute path. Double-byte characters will not be translated.
473 =item C<Cygwin::posix_to_win_path>
475 Translates a cygwin path to the corresponding cygwin path respecting
476 the current mount points. With a second non-null argument returns an
477 absolute path. Double-byte characters will not be translated.
479 =item C<Cygwin::mount_table()>
481 Returns an array of [mnt_dir, mnt_fsname, mnt_type, mnt_opts].
483 perl -e 'for $i (Cygwin::mount_table) {print join(" ",@$i),"\n";}'
484 /bin c:\cygwin\bin system binmode,cygexec
485 /usr/bin c:\cygwin\bin system binmode
486 /usr/lib c:\cygwin\lib system binmode
487 / c:\cygwin system binmode
488 /cygdrive/c c: system binmode,noumount
489 /cygdrive/d d: system binmode,noumount
490 /cygdrive/e e: system binmode,noumount
492 =item C<Cygwin::mount_flags>
494 Returns the mount type and flags for a specified mount point.
495 A comma-separated string of mntent->mnt_type (always
496 "system" or "user"), then the mntent->mnt_opts, where
497 the first is always "binmode" or "textmode".
499 system|user,binmode|textmode,exec,cygexec,cygdrive,mixed,
500 notexec,managed,nosuid,devfs,proc,noumount
502 If the argument is "/cygdrive", then just the volume mount settings,
503 and the cygdrive mount prefix are returned.
505 User mounts override system mounts.
507 $ perl -e 'print Cygwin::mount_flags "/usr/bin"'
508 system,binmode,cygexec
509 $ perl -e 'print Cygwin::mount_flags "/cygdrive"'
510 binmode,cygdrive,/cygdrive
512 =item C<Cygwin::is_binmount>
514 Returns true if the given cygwin path is binary mounted, false if the
515 path is mounted in textmode.
517 =item C<Cygwin::sync_winenv>
519 Cygwin does not initialize all original Win32 environment variables.
520 See the bottom of this page L<http://cygwin.com/cygwin-ug-net/setup-env.html>
521 for "Restricted Win32 environment".
523 Certain Win32 programs called from cygwin programs might need some environment
524 variable, such as e.g. ADODB needs %COMMONPROGRAMFILES%.
525 Call Cygwin::sync_winenv() to copy all Win32 environment variables to your
526 process and note that cygwin will warn on every encounter of non-POSIX paths.
530 =head1 INSTALL PERL ON CYGWIN
532 This will install Perl, including I<man> pages.
534 make install 2>&1 | tee log.make-install
536 NOTE: If C<STDERR> is redirected C<make install> will B<not> prompt
537 you to install I<perl> into F</usr/bin>.
539 You may need to be I<Administrator> to run C<make install>. If you
540 are not, you must have write access to the directories in question.
542 Information on installing the Perl documentation in HTML format can be
543 found in the F<INSTALL> document.
545 =head1 MANIFEST ON CYGWIN
547 These are the files in the Perl release that contain references to Cygwin.
548 These very brief notes attempt to explain the reason for all conditional
549 code. Hopefully, keeping this up to date will allow the Cygwin port to
550 be kept as clean as possible.
556 INSTALL README.cygwin README.win32 MANIFEST
557 pod/perl.pod pod/perlport.pod pod/perlfaq3.pod
558 pod/perldelta.pod pod/perl5004delta.pod pod/perl56delta.pod
559 pod/perl561delta.pod pod/perl570delta.pod pod/perl572delta.pod
560 pod/perl573delta.pod pod/perl58delta.pod pod/perl581delta.pod
561 pod/perl590delta.pod pod/perlhist.pod pod/perlmodlib.pod
562 pod/perltoc.pod Porting/Glossary pod/perlgit.pod
563 Porting/checkAUTHORS.pl
564 dist/Cwd/Changes ext/Compress-Raw-Zlib/Changes
565 ext/Compress-Raw-Zlib/README ext/Compress-Zlib/Changes
566 ext/DB_File/Changes ext/Encode/Changes ext/Sys-Syslog/Changes
567 ext/Time-HiRes/Changes ext/Win32API-File/Changes
568 lib/ExtUtils/CBuilder/Changes lib/ExtUtils/Changes lib/ExtUtils/NOTES
569 lib/ExtUtils/PATCHING lib/ExtUtils/README
570 lib/Net/Ping/Changes lib/Test/Harness/Changes
571 lib/Term/ANSIColor/ChangeLog lib/Term/ANSIColor/README README.symbian
574 =item Build, Configure, Make, Install
577 ext/IPC/SysV/hints/cygwin.pl
578 ext/NDBM_File/hints/cygwin.pl
579 ext/ODBM_File/hints/cygwin.pl
581 Configure - help finding hints from uname,
582 shared libperl required for dynamic loading
583 Makefile.SH Cross/Makefile-cross-SH
585 Porting/patchls - cygwin in port list
586 installman - man pages with :: translated to .
587 installperl - install dll, install to 'pods'
588 makedepend.SH - uwinfix
589 regen_lib.pl - file permissions
593 symbian/sanity.pl symbian/sisify.pl
595 vms/descrip_mms.template
596 win32/Makefile win32/makefile.mk
600 t/io/fs.t - no file mode checks if not ntsec
601 skip rename() check when not check_case:relaxed
602 t/io/tell.t - binmode
603 t/lib/cygwin.t - builtin cygwin function tests
604 t/op/groups.t - basegroup has ID = 0
605 t/op/magic.t - $^X/symlink WORKAROUND, s/.exe//
606 t/op/stat.t - no /dev, skip Win32 ftCreationTime quirk
607 (cache manager sometimes preserves ctime of file
608 previously created and deleted), no -u (setuid)
609 t/op/taint.t - can't use empty path under Cygwin Perl
610 t/op/time.t - no tzset()
612 =item Compiled Perl Source
614 EXTERN.h - __declspec(dllimport)
615 XSUB.h - __declspec(dllexport)
616 cygwin/cygwin.c - os_extras (getcwd, spawn, and several Cygwin:: functions)
617 perl.c - os_extras, -i.bak
619 doio.c - win9x can not rename a file when it is open
620 pp_sys.c - do not define h_errno, init _pwent_struct.pw_comment
622 util.h - PERL_FILE_IS_ABSOLUTE macro
623 pp.c - Comment about Posix vs IEEE math under Cygwin
624 perlio.c - CR/LF mode
625 perliol.c - Comment about EXTCONST under Cygwin
627 =item Compiled Module Source
629 ext/Compress-Raw-Zlib/Makefile.PL
630 - Can't install via CPAN shell under Cygwin
631 ext/Compress-Raw-Zlib/zlib-src/zutil.h
632 - Cygwin is Unix-like and has vsnprintf
633 ext/Errno/Errno_pm.PL - Special handling for Win32 Perl under Cygwin
634 ext/POSIX/POSIX.xs - tzname defined externally
635 ext/SDBM_File/sdbm/pair.c
636 - EXTCONST needs to be redefined from EXTERN.h
637 ext/SDBM_File/sdbm/sdbm.c
639 ext/Sys/Syslog/Syslog.xs
640 - Cygwin has syslog.h
641 ext/Sys/Syslog/win32/compile.pl
642 - Convert paths to Windows paths
643 ext/Time-HiRes/HiRes.xs
644 - Various timers not available
645 ext/Time-HiRes/Makefile.PL
646 - Find w32api/windows.h
647 ext/Win32/Makefile.PL - Use various libraries under Cygwin
648 ext/Win32/Win32.xs - Child dir and child env under Cygwin
649 ext/Win32API-File/File.xs
650 - _open_osfhandle not implemented under Cygwin
651 ext/Win32CORE/Win32CORE.c
652 - __declspec(dllexport)
654 =item Perl Modules/Scripts
656 ext/B/t/OptreeCheck.pm - Comment about stderr/stdout order under Cygwin
657 ext/Digest-SHA/bin/shasum
658 - Use binary mode under Cygwin
659 ext/Sys/Syslog/win32/Win32.pm
660 - Convert paths to Windows paths
661 ext/Time-HiRes/HiRes.pm
662 - Comment about various timers not available
663 ext/Win32API-File/File.pm
664 - _open_osfhandle not implemented under Cygwin
665 ext/Win32CORE/Win32CORE.pm
666 - History of Win32CORE under Cygwin
667 lib/Cwd.pm - hook to internal Cwd::cwd
668 lib/ExtUtils/CBuilder/Platform/cygwin.pm
669 - use gcc for ld, and link to libperl.dll.a
670 lib/ExtUtils/CBuilder.pm
671 - Cygwin is Unix-like
672 lib/ExtUtils/Install.pm - Install and rename issues under Cygwin
673 lib/ExtUtils/MM.pm - OS classifications
674 lib/ExtUtils/MM_Any.pm - Example for Cygwin
675 lib/ExtUtils/MakeMaker.pm
676 - require MM_Cygwin.pm
677 lib/ExtUtils/MM_Cygwin.pm
678 - canonpath, cflags, manifypods, perl_archive
679 lib/File/Fetch.pm - Comment about quotes using a Cygwin example
680 lib/File/Find.pm - on remote drives stat() always sets st_nlink to 1
681 lib/File/Spec/Cygwin.pm - case_tolerant
682 lib/File/Spec/Unix.pm - preserve //unc
683 lib/File/Spec/Win32.pm - References a message on cygwin.com
684 lib/File/Spec.pm - Pulls in lib/File/Spec/Cygwin.pm
685 lib/File/Temp.pm - no directory sticky bit
686 lib/Module/CoreList.pm - List of all module files and versions
687 lib/Net/Domain.pm - No domainname command under Cygwin
688 lib/Net/Netrc.pm - Bypass using stat() under Cygwin
689 lib/Net/Ping.pm - ECONREFUSED is EAGAIN under Cygwin
690 lib/Pod/Find.pm - Set 'pods' dir
691 lib/Pod/Perldoc/ToMan.pm - '-c' switch for pod2man
692 lib/Pod/Perldoc.pm - Use 'less' pager, and use .exe extension
693 lib/Term/ANSIColor.pm - Cygwin terminal info
694 lib/perl5db.pl - use stdin not /dev/tty
695 utils/perlbug.PL - Add CYGWIN environment variable to report
697 =item Perl Module Tests
700 ext/Compress-Zlib/t/14gzopen.t
701 ext/DB_File/t/db-btree.t
702 ext/DB_File/t/db-hash.t
703 ext/DB_File/t/db-recno.t
704 ext/DynaLoader/t/DynaLoader.t
705 ext/File-Glob/t/basic.t
706 ext/GDBM_File/t/gdbm.t
707 ext/POSIX/t/sysconf.t
709 ext/SDBM_File/t/sdbm.t
710 ext/Sys/Syslog/t/syslog.t
711 ext/Time-HiRes/t/HiRes.t
712 ext/Win32/t/Unicode.t
713 ext/Win32API-File/t/file.t
714 ext/Win32CORE/t/win32core.t
716 lib/Archive/Extract/t/01_Archive-Extract.t
717 lib/Archive/Tar/t/02_methods.t
718 lib/ExtUtils/t/Embed.t
719 lib/ExtUtils/t/eu_command.t
720 lib/ExtUtils/t/MM_Cygwin.t
721 lib/ExtUtils/t/MM_Unix.t
724 lib/File/Find/t/find.t
726 lib/File/Spec/t/crossplatform.t
727 lib/File/Spec/t/Spec.t
729 lib/Net/Ping/t/110_icmp_inst.t
730 lib/Net/Ping/t/500_ping_icmp.t
732 lib/Pod/Simple/t/perlcyg.pod
733 lib/Pod/Simple/t/perlcygo.txt
734 lib/Pod/Simple/t/perlfaq.pod
735 lib/Pod/Simple/t/perlfaqo.txt
741 =head1 BUGS ON CYGWIN
743 Support for swapping real and effective user and group IDs is incomplete.
744 On WinNT Cygwin provides C<setuid()>, C<seteuid()>, C<setgid()> and C<setegid()>.
745 However, additional Cygwin calls for manipulating WinNT access tokens
746 and security contexts are required.
750 Charles Wilson <cwilson@ece.gatech.edu>,
751 Eric Fifer <egf7@columbia.edu>,
752 alexander smishlajev <als@turnhere.com>,
753 Steven Morlock <newspost@morlock.net>,
754 Sebastien Barre <Sebastien.Barre@utc.fr>,
755 Teun Burgers <burgers@ecn.nl>,
756 Gerrit P. Haase <gp@familiehaase.de>,
757 Reini Urban <rurban@cpan.org>,
758 Jan Dubois <jand@activestate.com>,
759 Jerry D. Hedden <jdhedden@cpan.org>.
763 Last updated: 2012-02-08