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
89 Any special flags to pass to gcc to use dynamic linking? [none] -s
91 or you can edit F<hints/cygwin.sh> and uncomment the relevant variables
92 near the end of the file.
94 =head2 Optional Libraries for Perl on Cygwin
96 Several Perl functions and modules depend on the existence of
97 some optional libraries. Configure will find them if they are
98 installed in one of the directories listed as being used for library
99 searches. Pre-built packages for most of these are available from
100 the Cygwin installer.
106 The crypt package distributed with Cygwin is a Linux compatible 56-bit
107 DES crypt port by Corinna Vinschen.
109 Alternatively, the crypt libraries in GNU libc have been ported to Cygwin.
111 =item * C<-lgdbm_compat> (C<use GDBM_File>)
113 GDBM is available for Cygwin.
115 NOTE: The GDBM library only works on NTFS partitions.
117 =item * C<-ldb> (C<use DB_File>)
119 BerkeleyDB is available for Cygwin.
121 NOTE: The BerkeleyDB library only completely works on NTFS partitions.
123 =item * C<cygserver> (C<use IPC::SysV>)
125 A port of SysV IPC is available for Cygwin.
127 NOTE: This has B<not> been extensively tested. In particular,
128 C<d_semctl_semun> is undefined because it fails a Configure test
129 and on Win9x the I<shm*()> functions seem to hang. It also creates
130 a compile time dependency because F<perl.h> includes F<<sys/ipc.h>>
131 and F<<sys/sem.h>> (which will be required in the future when compiling
132 CPAN modules). CURRENTLY NOT SUPPORTED!
136 Included with the standard Cygwin netrelease is the inetutils package
137 which includes libutil.a.
141 =head2 Configure-time Options for Perl on Cygwin
143 The F<INSTALL> document describes several Configure-time options. Some of
144 these will work with Cygwin, others are not yet possible. Also, some of
145 these are experimental. You can either select an option when Configure
146 prompts you or you can define (undefine) symbols on the command line.
152 Undefining this symbol forces Perl to be compiled statically.
154 =item * C<-Dusemymalloc>
156 By default Perl does not use the C<malloc()> included with the Perl source,
157 because it was slower and not entirely thread-safe. If you want to force
158 Perl to build with the old -Dusemymalloc define this.
160 =item * C<-Uuseperlio>
162 Undefining this symbol disables the PerlIO abstraction. PerlIO is now the
163 default; it is not recommended to disable PerlIO.
165 =item * C<-Dusemultiplicity>
167 Multiplicity is required when embedding Perl in a C program and using
168 more than one interpreter instance. This is only required when you build
169 a not-threaded perl with C<-Uuseithreads>.
171 =item * C<-Uuse64bitint>
173 By default Perl uses 64 bit integers. If you want to use smaller 32 bit
174 integers, define this symbol.
176 =item * C<-Duselongdouble>
178 I<gcc> supports long doubles (12 bytes). However, several additional
179 long double math functions are necessary to use them within Perl
180 (I<{atan2, cos, exp, floor, fmod, frexp, isnan, log, modf, pow, sin, sqrt}l,
182 These are B<not> yet available with newlib, the Cygwin libc.
184 =item * C<-Uuseithreads>
186 Define this symbol if you want not-threaded faster perl.
188 =item * C<-Duselargefiles>
190 Cygwin uses 64-bit integers for internal size and position calculations,
191 this will be correctly detected and defined by Configure.
193 =item * C<-Dmksymlinks>
195 Use this to build perl outside of the source tree. Details can be
196 found in the F<INSTALL> document. This is the recommended way to
197 build perl from sources.
201 =head2 Suspicious Warnings on Cygwin
203 You may see some messages during Configure that seem suspicious.
207 =item * Win9x and C<d_eofnblk>
209 Win9x does not correctly report C<EOF> with a non-blocking read on a
210 closed pipe. You will see the following messages:
212 But it also returns -1 to signal EOF, so be careful!
213 WARNING: you can't distinguish between EOF and no data!
215 *** WHOA THERE!!! ***
216 The recommended value for $d_eofnblk on this machine was
218 Keep the recommended value? [y]
220 At least for consistency with WinNT, you should keep the recommended
223 =item * Compiler/Preprocessor defines
225 The following error occurs because of the Cygwin C<#define> of
228 Guessing which symbols your C compiler and preprocessor define...
229 try.c:<line#>: missing binary operator
231 This failure does not seem to cause any problems. With older gcc
232 versions, "parse error" is reported instead of "missing binary
237 =head1 MAKE ON CYGWIN
239 Simply run I<make> and wait:
241 make 2>&1 | tee log.make
243 =head1 TEST ON CYGWIN
245 There are two steps to running the test suite:
247 make test 2>&1 | tee log.make-test
249 cd t; ./perl harness 2>&1 | tee ../log.harness
251 The same tests are run both times, but more information is provided when
252 running as C<./perl harness>.
254 Test results vary depending on your host system and your Cygwin
255 configuration. If a test can pass in some Cygwin setup, it is always
256 attempted and explainable test failures are documented. It is possible
257 for Perl to pass all the tests, but it is more likely that some tests
258 will fail for one of the reasons listed below.
260 =head2 File Permissions on Cygwin
262 UNIX file permissions are based on sets of mode bits for
263 {read,write,execute} for each {user,group,other}. By default Cygwin
264 only tracks the Win32 read-only attribute represented as the UNIX file
265 user write bit (files are always readable, files are executable if they
266 have a F<.{com,bat,exe}> extension or begin with C<#!>, directories are
267 always readable and executable). On WinNT with the I<ntea> C<CYGWIN>
268 setting, the additional mode bits are stored as extended file attributes.
269 On WinNT with the default I<ntsec> C<CYGWIN> setting, permissions use the
270 standard WinNT security descriptors and access control lists. Without one of
271 these options, these tests will fail (listing not updated yet):
273 Failed Test List of failed
274 ------------------------------------
284 op/stat.t 9, 20 (.tmp not an executable extension)
286 =head2 NDBM_File and ODBM_File do not work on FAT filesystems
288 Do not use NDBM_File or ODBM_File on FAT filesystem. They can be
289 built on a FAT filesystem, but many tests will fail:
291 ../ext/NDBM_File/ndbm.t 13 3328 71 59 83.10% 1-2 4 16-71
292 ../ext/ODBM_File/odbm.t 255 65280 ?? ?? % ??
293 ../lib/AnyDBM_File.t 2 512 12 2 16.67% 1 4
294 ../lib/Memoize/t/errors.t 0 139 11 5 45.45% 7-11
295 ../lib/Memoize/t/tie_ndbm.t 13 3328 4 4 100.00% 1-4
296 run/fresh_perl.t 97 1 1.03% 91
298 If you intend to run only on FAT (or if using AnyDBM_File on FAT),
299 run Configure with the -Ui_ndbm and -Ui_dbm options to prevent
300 NDBM_File and ODBM_File being built.
302 With NTFS (and no CYGWIN=nontsec), there should be no problems even if
303 perl was built on FAT.
305 =head2 C<fork()> failures in io_* tests
307 A C<fork()> failure may result in the following tests failing:
309 ext/IO/lib/IO/t/io_multihomed.t
310 ext/IO/lib/IO/t/io_sock.t
311 ext/IO/lib/IO/t/io_unix.t
313 See comment on fork in L</Miscellaneous> below.
315 =head1 Specific features of the Cygwin port
317 =head2 Script Portability on Cygwin
319 Cygwin does an outstanding job of providing UNIX-like semantics on top of
320 Win32 systems. However, in addition to the items noted above, there are
321 some differences that you should know about. This is a very brief guide
322 to portability, more information can be found in the Cygwin documentation.
328 Cygwin pathnames are separated by forward (F</>) slashes, Universal
329 Naming Codes (F<//UNC>) are also supported Since cygwin-1.7 non-POSIX
330 pathnames are discouraged. Names may contain all printable
333 File names are case insensitive, but case preserving. A pathname that
334 contains a backslash or drive letter is a Win32 pathname, and not
335 subject to the translations applied to POSIX style pathnames, but
336 cygwin will warn you, so better convert them to POSIX.
338 For conversion we have C<Cygwin::win_to_posix_path()> and
339 C<Cygwin::posix_to_win_path()>.
341 Since cygwin-1.7 pathnames are UTF-8 encoded.
345 Since cygwin-1.7 textmounts are deprecated and strongly discouraged.
347 When a file is opened it is in either text or binary mode. In text mode
348 a file is subject to CR/LF/Ctrl-Z translations. With Cygwin, the default
349 mode for an C<open()> is determined by the mode of the mount that underlies
350 the file. See L</Cygwin::is_binmount>(). Perl provides a C<binmode()> function
351 to set binary mode on files that otherwise would be treated as text.
352 C<sysopen()> with the C<O_TEXT> flag sets text mode on files that otherwise
353 would be treated as binary:
355 sysopen(FOO, "bar", O_WRONLY|O_CREAT|O_TEXT)
357 C<lseek()>, C<tell()> and C<sysseek()> only work with files opened in binary
360 The text/binary issue is covered at length in the Cygwin documentation.
364 PerlIO overrides the default Cygwin Text/Binary behaviour. A file will
365 always be treated as binary, regardless of the mode of the mount it lives
366 on, just like it is in UNIX. So CR/LF translation needs to be requested in
367 either the C<open()> call like this:
369 open(FH, ">:crlf", "out.txt");
371 which will do conversion from LF to CR/LF on the output, or in the
372 environment settings (add this to your .bashrc):
376 which will pull in the crlf PerlIO layer which does LF -> CRLF conversion
377 on every output generated by perl.
381 The Cygwin C<stat()>, C<lstat()> and C<readlink()> functions make the F<.exe>
382 extension transparent by looking for F<foo.exe> when you ask for F<foo>
383 (unless a F<foo> also exists). Cygwin does not require a F<.exe>
384 extension, but I<gcc> adds it automatically when building a program.
385 However, when accessing an executable as a normal file (e.g., I<cp>
386 in a makefile) the F<.exe> is not transparent. The I<install> program
387 included with Cygwin automatically appends a F<.exe> when necessary.
389 =item * Cygwin vs. Windows process ids
391 Cygwin processes have their own pid, which is different from the
392 underlying windows pid. Most posix compliant Proc functions expect
393 the cygwin pid, but several Win32::Process functions expect the
394 winpid. E.g. C<$$> is the cygwin pid of F</usr/bin/perl>, which is not
395 the winpid. Use C<Cygwin::pid_to_winpid()> and C<Cygwin::winpid_to_pid()>
396 to translate between them.
398 =item * Cygwin vs. Windows errors
400 Under Cygwin, $^E is the same as $!. When using L<Win32 API Functions|Win32>,
401 use C<Win32::GetLastError()> to get the last Windows error.
403 =item * rebase errors on fork or system
405 Using C<fork()> or C<system()> out to another perl after loading multiple dlls
406 may result on a DLL baseaddress conflict. The internal cygwin error
407 looks like like the following:
409 0 [main] perl 8916 child_info_fork::abort: data segment start:
410 parent (0xC1A000) != child(0xA6A000)
414 183 [main] perl 3588 C:\cygwin\bin\perl.exe: *** fatal error -
415 unable to remap C:\cygwin\bin\cygsvn_subr-1-0.dll to same address
416 as parent(0x6FB30000) != 0x6FE60000 46 [main] perl 3488 fork: child
417 3588 - died waiting for dll loading, errno11
419 See L<http://cygwin.com/faq/faq-nochunks.html#faq.using.fixing-fork-failures>
420 It helps if not too many DLLs are loaded in memory so the available address space is larger,
421 e.g. stopping the MS Internet Explorer might help.
423 Use the perlrebase or rebase utilities to resolve the conflicting dll addresses.
424 The rebase package is included in the Cygwin setup. Use F<setup.exe>
425 from L<http://www.cygwin.com/setup.exe> to install it.
427 1. kill all perl processes and run C<perlrebase> or
429 2. kill all cygwin processes and services, start dash from cmd.exe and run C<rebaseall>.
433 On WinNT C<chown()> can change a file's user and group IDs. On Win9x C<chown()>
434 is a no-op, although this is appropriate since there is no security model.
436 =item * Miscellaneous
438 File locking using the C<F_GETLK> command to C<fcntl()> is a stub that
441 Win9x can not C<rename()> an open file (although WinNT can).
443 The Cygwin C<chroot()> implementation has holes (it can not restrict file
444 access by native Win32 programs).
446 Inplace editing C<perl -i> of files doesn't work without doing a backup
447 of the file being edited C<perl -i.bak> because of windowish restrictions,
448 therefore Perl adds the suffix C<.bak> automatically if you use C<perl -i>
449 without specifying a backup extension.
453 =head2 Prebuilt methods:
459 Returns the current working directory.
461 =item C<Cygwin::pid_to_winpid>
463 Translates a cygwin pid to the corresponding Windows pid (which may or
464 may not be the same).
466 =item C<Cygwin::winpid_to_pid>
468 Translates a Windows pid to the corresponding cygwin pid (if any).
470 =item C<Cygwin::win_to_posix_path>
472 Translates a Windows path to the corresponding cygwin path respecting
473 the current mount points. With a second non-null argument returns an
474 absolute path. Double-byte characters will not be translated.
476 =item C<Cygwin::posix_to_win_path>
478 Translates a cygwin path to the corresponding cygwin path respecting
479 the current mount points. With a second non-null argument returns an
480 absolute path. Double-byte characters will not be translated.
482 =item C<Cygwin::mount_table()>
484 Returns an array of [mnt_dir, mnt_fsname, mnt_type, mnt_opts].
486 perl -e 'for $i (Cygwin::mount_table) {print join(" ",@$i),"\n";}'
487 /bin c:\cygwin\bin system binmode,cygexec
488 /usr/bin c:\cygwin\bin system binmode
489 /usr/lib c:\cygwin\lib system binmode
490 / c:\cygwin system binmode
491 /cygdrive/c c: system binmode,noumount
492 /cygdrive/d d: system binmode,noumount
493 /cygdrive/e e: system binmode,noumount
495 =item C<Cygwin::mount_flags>
497 Returns the mount type and flags for a specified mount point.
498 A comma-separated string of mntent->mnt_type (always
499 "system" or "user"), then the mntent->mnt_opts, where
500 the first is always "binmode" or "textmode".
502 system|user,binmode|textmode,exec,cygexec,cygdrive,mixed,
503 notexec,managed,nosuid,devfs,proc,noumount
505 If the argument is "/cygdrive", then just the volume mount settings,
506 and the cygdrive mount prefix are returned.
508 User mounts override system mounts.
510 $ perl -e 'print Cygwin::mount_flags "/usr/bin"'
511 system,binmode,cygexec
512 $ perl -e 'print Cygwin::mount_flags "/cygdrive"'
513 binmode,cygdrive,/cygdrive
515 =item C<Cygwin::is_binmount>
517 Returns true if the given cygwin path is binary mounted, false if the
518 path is mounted in textmode.
520 =item C<Cygwin::sync_winenv>
522 Cygwin does not initialize all original Win32 environment variables.
523 See the bottom of this page L<http://cygwin.com/cygwin-ug-net/setup-env.html>
524 for "Restricted Win32 environment".
526 Certain Win32 programs called from cygwin programs might need some environment
527 variable, such as e.g. ADODB needs %COMMONPROGRAMFILES%.
528 Call Cygwin::sync_winenv() to copy all Win32 environment variables to your
529 process and note that cygwin will warn on every encounter of non-POSIX paths.
533 =head1 INSTALL PERL ON CYGWIN
535 This will install Perl, including I<man> pages.
537 make install 2>&1 | tee log.make-install
539 NOTE: If C<STDERR> is redirected C<make install> will B<not> prompt
540 you to install I<perl> into F</usr/bin>.
542 You may need to be I<Administrator> to run C<make install>. If you
543 are not, you must have write access to the directories in question.
545 Information on installing the Perl documentation in HTML format can be
546 found in the F<INSTALL> document.
548 =head1 MANIFEST ON CYGWIN
550 These are the files in the Perl release that contain references to Cygwin.
551 These very brief notes attempt to explain the reason for all conditional
552 code. Hopefully, keeping this up to date will allow the Cygwin port to
553 be kept as clean as possible.
559 INSTALL README.cygwin README.win32 MANIFEST
560 pod/perl.pod pod/perlport.pod pod/perlfaq3.pod
561 pod/perldelta.pod pod/perl5004delta.pod pod/perl56delta.pod
562 pod/perl561delta.pod pod/perl570delta.pod pod/perl572delta.pod
563 pod/perl573delta.pod pod/perl58delta.pod pod/perl581delta.pod
564 pod/perl590delta.pod pod/perlhist.pod pod/perlmodlib.pod
565 pod/perltoc.pod Porting/Glossary pod/perlgit.pod
566 Porting/checkAUTHORS.pl
567 dist/Cwd/Changes ext/Compress-Raw-Zlib/Changes
568 dist/Time-HiRes/Changes
569 ext/Compress-Raw-Zlib/README ext/Compress-Zlib/Changes
570 ext/DB_File/Changes ext/Encode/Changes ext/Sys-Syslog/Changes
571 ext/Win32API-File/Changes
572 lib/ExtUtils/CBuilder/Changes lib/ExtUtils/Changes
573 lib/ExtUtils/NOTES lib/ExtUtils/PATCHING lib/ExtUtils/README
574 lib/Net/Ping/Changes lib/Test/Harness/Changes
575 lib/Term/ANSIColor/ChangeLog lib/Term/ANSIColor/README
576 README.symbian symbian/TODO
578 =item Build, Configure, Make, Install
581 ext/IPC/SysV/hints/cygwin.pl
582 ext/NDBM_File/hints/cygwin.pl
583 ext/ODBM_File/hints/cygwin.pl
585 Configure - help finding hints from uname,
586 shared libperl required for dynamic loading
587 Makefile.SH Cross/Makefile-cross-SH
589 Porting/patchls - cygwin in port list
590 installman - man pages with :: translated to .
591 installperl - install dll, install to 'pods'
592 makedepend.SH - uwinfix
593 regen_lib.pl - file permissions
597 symbian/sanity.pl symbian/sisify.pl
599 vms/descrip_mms.template
600 win32/Makefile win32/makefile.mk
604 t/io/fs.t - no file mode checks if not ntsec
605 skip rename() check when not
607 t/io/tell.t - binmode
608 t/lib/cygwin.t - builtin cygwin function tests
609 t/op/groups.t - basegroup has ID = 0
610 t/op/magic.t - $^X/symlink WORKAROUND, s/.exe//
611 t/op/stat.t - no /dev, skip Win32 ftCreationTime quirk
612 (cache manager sometimes preserves ctime of
613 file previously created and deleted), no -u
615 t/op/taint.t - can't use empty path under Cygwin Perl
616 t/op/time.t - no tzset()
618 =item Compiled Perl Source
620 EXTERN.h - __declspec(dllimport)
621 XSUB.h - __declspec(dllexport)
622 cygwin/cygwin.c - os_extras (getcwd, spawn, and several
624 perl.c - os_extras, -i.bak
626 doio.c - win9x can not rename a file when it is open
627 pp_sys.c - do not define h_errno, init
628 _pwent_struct.pw_comment
630 util.h - PERL_FILE_IS_ABSOLUTE macro
631 pp.c - Comment about Posix vs IEEE math under
633 perlio.c - CR/LF mode
634 perliol.c - Comment about EXTCONST under Cygwin
636 =item Compiled Module Source
638 ext/Compress-Raw-Zlib/Makefile.PL
639 - Can't install via CPAN shell under Cygwin
640 ext/Compress-Raw-Zlib/zlib-src/zutil.h
641 - Cygwin is Unix-like and has vsnprintf
642 ext/Errno/Errno_pm.PL - Special handling for Win32 Perl under
644 ext/POSIX/POSIX.xs - tzname defined externally
645 ext/SDBM_File/sdbm/pair.c
646 - EXTCONST needs to be redefined from
648 ext/SDBM_File/sdbm/sdbm.c
650 ext/Sys/Syslog/Syslog.xs
651 - Cygwin has syslog.h
652 ext/Sys/Syslog/win32/compile.pl
653 - Convert paths to Windows paths
654 ext/Time-HiRes/HiRes.xs
655 - Various timers not available
656 ext/Time-HiRes/Makefile.PL
657 - Find w32api/windows.h
658 ext/Win32/Makefile.PL - Use various libraries under Cygwin
659 ext/Win32/Win32.xs - Child dir and child env under Cygwin
660 ext/Win32API-File/File.xs
661 - _open_osfhandle not implemented under
663 ext/Win32CORE/Win32CORE.c
664 - __declspec(dllexport)
666 =item Perl Modules/Scripts
668 ext/B/t/OptreeCheck.pm - Comment about stderr/stdout order under
670 ext/Digest-SHA/bin/shasum
671 - Use binary mode under Cygwin
672 ext/Sys/Syslog/win32/Win32.pm
673 - Convert paths to Windows paths
674 ext/Time-HiRes/HiRes.pm
675 - Comment about various timers not available
676 ext/Win32API-File/File.pm
677 - _open_osfhandle not implemented under
679 ext/Win32CORE/Win32CORE.pm
680 - History of Win32CORE under Cygwin
681 lib/Cwd.pm - hook to internal Cwd::cwd
682 lib/ExtUtils/CBuilder/Platform/cygwin.pm
683 - use gcc for ld, and link to libperl.dll.a
684 lib/ExtUtils/CBuilder.pm
685 - Cygwin is Unix-like
686 lib/ExtUtils/Install.pm - Install and rename issues under Cygwin
687 lib/ExtUtils/MM.pm - OS classifications
688 lib/ExtUtils/MM_Any.pm - Example for Cygwin
689 lib/ExtUtils/MakeMaker.pm
690 - require MM_Cygwin.pm
691 lib/ExtUtils/MM_Cygwin.pm
692 - canonpath, cflags, manifypods, perl_archive
693 lib/File/Fetch.pm - Comment about quotes using a Cygwin example
694 lib/File/Find.pm - on remote drives stat() always sets
696 lib/File/Spec/Cygwin.pm - case_tolerant
697 lib/File/Spec/Unix.pm - preserve //unc
698 lib/File/Spec/Win32.pm - References a message on cygwin.com
699 lib/File/Spec.pm - Pulls in lib/File/Spec/Cygwin.pm
700 lib/File/Temp.pm - no directory sticky bit
701 lib/Module/CoreList.pm - List of all module files and versions
702 lib/Net/Domain.pm - No domainname command under Cygwin
703 lib/Net/Netrc.pm - Bypass using stat() under Cygwin
704 lib/Net/Ping.pm - ECONREFUSED is EAGAIN under Cygwin
705 lib/Pod/Find.pm - Set 'pods' dir
706 lib/Pod/Perldoc/ToMan.pm - '-c' switch for pod2man
707 lib/Pod/Perldoc.pm - Use 'less' pager, and use .exe extension
708 lib/Term/ANSIColor.pm - Cygwin terminal info
709 lib/perl5db.pl - use stdin not /dev/tty
710 utils/perlbug.PL - Add CYGWIN environment variable to report
712 =item Perl Module Tests
715 ext/Compress-Zlib/t/14gzopen.t
716 ext/DB_File/t/db-btree.t
717 ext/DB_File/t/db-hash.t
718 ext/DB_File/t/db-recno.t
719 ext/DynaLoader/t/DynaLoader.t
720 ext/File-Glob/t/basic.t
721 ext/GDBM_File/t/gdbm.t
722 ext/POSIX/t/sysconf.t
724 ext/SDBM_File/t/sdbm.t
725 ext/Sys/Syslog/t/syslog.t
726 ext/Time-HiRes/t/HiRes.t
727 ext/Win32/t/Unicode.t
728 ext/Win32API-File/t/file.t
729 ext/Win32CORE/t/win32core.t
731 lib/Archive/Extract/t/01_Archive-Extract.t
732 lib/Archive/Tar/t/02_methods.t
733 lib/ExtUtils/t/Embed.t
734 lib/ExtUtils/t/eu_command.t
735 lib/ExtUtils/t/MM_Cygwin.t
736 lib/ExtUtils/t/MM_Unix.t
739 lib/File/Find/t/find.t
741 lib/File/Spec/t/crossplatform.t
742 lib/File/Spec/t/Spec.t
744 lib/Net/Ping/t/110_icmp_inst.t
745 lib/Net/Ping/t/500_ping_icmp.t
747 lib/Pod/Simple/t/perlcyg.pod
748 lib/Pod/Simple/t/perlcygo.txt
749 lib/Pod/Simple/t/perlfaq.pod
750 lib/Pod/Simple/t/perlfaqo.txt
756 =head1 BUGS ON CYGWIN
758 Support for swapping real and effective user and group IDs is incomplete.
759 On WinNT Cygwin provides C<setuid()>, C<seteuid()>, C<setgid()> and C<setegid()>.
760 However, additional Cygwin calls for manipulating WinNT access tokens
761 and security contexts are required.
765 Charles Wilson <cwilson@ece.gatech.edu>,
766 Eric Fifer <egf7@columbia.edu>,
767 alexander smishlajev <als@turnhere.com>,
768 Steven Morlock <newspost@morlock.net>,
769 Sebastien Barre <Sebastien.Barre@utc.fr>,
770 Teun Burgers <burgers@ecn.nl>,
771 Gerrit P. Haase <gp@familiehaase.de>,
772 Reini Urban <rurban@cpan.org>,
773 Jan Dubois <jand@activestate.com>,
774 Jerry D. Hedden <jdhedden@cpan.org>.
778 Last updated: 2012-02-08