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<https://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 As of libcrypt 1.3 (March 2016), you will need to install the
112 libcrypt-devel package for Configure to detect crypt().
114 =item * C<-lgdbm_compat> (C<use GDBM_File>)
116 GDBM is available for Cygwin.
118 NOTE: The GDBM library only works on NTFS partitions.
120 =item * C<-ldb> (C<use DB_File>)
122 BerkeleyDB is available for Cygwin.
124 NOTE: The BerkeleyDB library only completely works on NTFS partitions.
126 =item * C<cygserver> (C<use IPC::SysV>)
128 A port of SysV IPC is available for Cygwin.
130 NOTE: This has B<not> been extensively tested. In particular,
131 C<d_semctl_semun> is undefined because it fails a Configure test
132 and on Win9x the I<shm*()> functions seem to hang. It also creates
133 a compile time dependency because F<perl.h> includes F<<sys/ipc.h>>
134 and F<<sys/sem.h>> (which will be required in the future when compiling
135 CPAN modules). CURRENTLY NOT SUPPORTED!
139 Included with the standard Cygwin netrelease is the inetutils package
140 which includes libutil.a.
144 =head2 Configure-time Options for Perl on Cygwin
146 The F<INSTALL> document describes several Configure-time options. Some of
147 these will work with Cygwin, others are not yet possible. Also, some of
148 these are experimental. You can either select an option when Configure
149 prompts you or you can define (undefine) symbols on the command line.
155 Undefining this symbol forces Perl to be compiled statically.
157 =item * C<-Dusemymalloc>
159 By default Perl does not use the C<malloc()> included with the Perl source,
160 because it was slower and not entirely thread-safe. If you want to force
161 Perl to build with the old -Dusemymalloc define this.
163 =item * C<-Uuseperlio>
165 Undefining this symbol disables the PerlIO abstraction. PerlIO is now the
166 default; it is not recommended to disable PerlIO.
168 =item * C<-Dusemultiplicity>
170 Multiplicity is required when embedding Perl in a C program and using
171 more than one interpreter instance. This is only required when you build
172 a not-threaded perl with C<-Uuseithreads>.
174 =item * C<-Uuse64bitint>
176 By default Perl uses 64 bit integers. If you want to use smaller 32 bit
177 integers, define this symbol.
179 =item * C<-Duselongdouble>
181 I<gcc> supports long doubles (12 bytes). However, several additional
182 long double math functions are necessary to use them within Perl
183 (I<{atan2, cos, exp, floor, fmod, frexp, isnan, log, modf, pow, sin, sqrt}l,
185 These are B<not> yet available with newlib, the Cygwin libc.
187 =item * C<-Uuseithreads>
189 Define this symbol if you want not-threaded faster perl.
191 =item * C<-Duselargefiles>
193 Cygwin uses 64-bit integers for internal size and position calculations,
194 this will be correctly detected and defined by Configure.
196 =item * C<-Dmksymlinks>
198 Use this to build perl outside of the source tree. Details can be
199 found in the F<INSTALL> document. This is the recommended way to
200 build perl from sources.
204 =head2 Suspicious Warnings on Cygwin
206 You may see some messages during Configure that seem suspicious.
210 =item * Win9x and C<d_eofnblk>
212 Win9x does not correctly report C<EOF> with a non-blocking read on a
213 closed pipe. You will see the following messages:
215 But it also returns -1 to signal EOF, so be careful!
216 WARNING: you can't distinguish between EOF and no data!
218 *** WHOA THERE!!! ***
219 The recommended value for $d_eofnblk on this machine was
221 Keep the recommended value? [y]
223 At least for consistency with WinNT, you should keep the recommended
226 =item * Compiler/Preprocessor defines
228 The following error occurs because of the Cygwin C<#define> of
231 Guessing which symbols your C compiler and preprocessor define...
232 try.c:<line#>: missing binary operator
234 This failure does not seem to cause any problems. With older gcc
235 versions, "parse error" is reported instead of "missing binary
240 =head1 MAKE ON CYGWIN
242 Simply run I<make> and wait:
244 make 2>&1 | tee log.make
246 =head1 TEST ON CYGWIN
248 There are two steps to running the test suite:
250 make test 2>&1 | tee log.make-test
252 cd t; ./perl harness 2>&1 | tee ../log.harness
254 The same tests are run both times, but more information is provided when
255 running as C<./perl harness>.
257 Test results vary depending on your host system and your Cygwin
258 configuration. If a test can pass in some Cygwin setup, it is always
259 attempted and explainable test failures are documented. It is possible
260 for Perl to pass all the tests, but it is more likely that some tests
261 will fail for one of the reasons listed below.
263 =head2 File Permissions on Cygwin
265 UNIX file permissions are based on sets of mode bits for
266 {read,write,execute} for each {user,group,other}. By default Cygwin
267 only tracks the Win32 read-only attribute represented as the UNIX file
268 user write bit (files are always readable, files are executable if they
269 have a F<.{com,bat,exe}> extension or begin with C<#!>, directories are
270 always readable and executable). On WinNT with the I<ntea> C<CYGWIN>
271 setting, the additional mode bits are stored as extended file attributes.
272 On WinNT with the default I<ntsec> C<CYGWIN> setting, permissions use the
273 standard WinNT security descriptors and access control lists. Without one of
274 these options, these tests will fail (listing not updated yet):
276 Failed Test List of failed
277 ------------------------------------
287 op/stat.t 9, 20 (.tmp not an executable extension)
289 =head2 NDBM_File and ODBM_File do not work on FAT filesystems
291 Do not use NDBM_File or ODBM_File on FAT filesystem. They can be
292 built on a FAT filesystem, but many tests will fail:
294 ../ext/NDBM_File/ndbm.t 13 3328 71 59 83.10% 1-2 4 16-71
295 ../ext/ODBM_File/odbm.t 255 65280 ?? ?? % ??
296 ../lib/AnyDBM_File.t 2 512 12 2 16.67% 1 4
297 ../lib/Memoize/t/errors.t 0 139 11 5 45.45% 7-11
298 ../lib/Memoize/t/tie_ndbm.t 13 3328 4 4 100.00% 1-4
299 run/fresh_perl.t 97 1 1.03% 91
301 If you intend to run only on FAT (or if using AnyDBM_File on FAT),
302 run Configure with the -Ui_ndbm and -Ui_dbm options to prevent
303 NDBM_File and ODBM_File being built.
305 With NTFS (and no CYGWIN=nontsec), there should be no problems even if
306 perl was built on FAT.
308 =head2 C<fork()> failures in io_* tests
310 A C<fork()> failure may result in the following tests failing:
312 ext/IO/lib/IO/t/io_multihomed.t
313 ext/IO/lib/IO/t/io_sock.t
314 ext/IO/lib/IO/t/io_unix.t
316 See comment on fork in L</Miscellaneous> below.
318 =head1 Specific features of the Cygwin port
320 =head2 Script Portability on Cygwin
322 Cygwin does an outstanding job of providing UNIX-like semantics on top of
323 Win32 systems. However, in addition to the items noted above, there are
324 some differences that you should know about. This is a very brief guide
325 to portability, more information can be found in the Cygwin documentation.
331 Cygwin pathnames are separated by forward (F</>) slashes, Universal
332 Naming Codes (F<//UNC>) are also supported Since cygwin-1.7 non-POSIX
333 pathnames are discouraged. Names may contain all printable
336 File names are case insensitive, but case preserving. A pathname that
337 contains a backslash or drive letter is a Win32 pathname, and not
338 subject to the translations applied to POSIX style pathnames, but
339 cygwin will warn you, so better convert them to POSIX.
341 For conversion we have C<Cygwin::win_to_posix_path()> and
342 C<Cygwin::posix_to_win_path()>.
344 Since cygwin-1.7 pathnames are UTF-8 encoded.
348 Since cygwin-1.7 textmounts are deprecated and strongly discouraged.
350 When a file is opened it is in either text or binary mode. In text mode
351 a file is subject to CR/LF/Ctrl-Z translations. With Cygwin, the default
352 mode for an C<open()> is determined by the mode of the mount that underlies
353 the file. See L</Cygwin::is_binmount>(). Perl provides a C<binmode()> function
354 to set binary mode on files that otherwise would be treated as text.
355 C<sysopen()> with the C<O_TEXT> flag sets text mode on files that otherwise
356 would be treated as binary:
358 sysopen(FOO, "bar", O_WRONLY|O_CREAT|O_TEXT)
360 C<lseek()>, C<tell()> and C<sysseek()> only work with files opened in binary
363 The text/binary issue is covered at length in the Cygwin documentation.
367 PerlIO overrides the default Cygwin Text/Binary behaviour. A file will
368 always be treated as binary, regardless of the mode of the mount it lives
369 on, just like it is in UNIX. So CR/LF translation needs to be requested in
370 either the C<open()> call like this:
372 open(FH, ">:crlf", "out.txt");
374 which will do conversion from LF to CR/LF on the output, or in the
375 environment settings (add this to your .bashrc):
379 which will pull in the crlf PerlIO layer which does LF -> CRLF conversion
380 on every output generated by perl.
384 The Cygwin C<stat()>, C<lstat()> and C<readlink()> functions make the F<.exe>
385 extension transparent by looking for F<foo.exe> when you ask for F<foo>
386 (unless a F<foo> also exists). Cygwin does not require a F<.exe>
387 extension, but I<gcc> adds it automatically when building a program.
388 However, when accessing an executable as a normal file (e.g., I<cp>
389 in a makefile) the F<.exe> is not transparent. The I<install> program
390 included with Cygwin automatically appends a F<.exe> when necessary.
392 =item * Cygwin vs. Windows process ids
394 Cygwin processes have their own pid, which is different from the
395 underlying windows pid. Most posix compliant Proc functions expect
396 the cygwin pid, but several Win32::Process functions expect the
397 winpid. E.g. C<$$> is the cygwin pid of F</usr/bin/perl>, which is not
398 the winpid. Use C<Cygwin::pid_to_winpid()> and C<Cygwin::winpid_to_pid()>
399 to translate between them.
401 =item * Cygwin vs. Windows errors
403 Under Cygwin, $^E is the same as $!. When using L<Win32 API Functions|Win32>,
404 use C<Win32::GetLastError()> to get the last Windows error.
406 =item * rebase errors on fork or system
408 Using C<fork()> or C<system()> out to another perl after loading multiple dlls
409 may result on a DLL baseaddress conflict. The internal cygwin error
410 looks like like the following:
412 0 [main] perl 8916 child_info_fork::abort: data segment start:
413 parent (0xC1A000) != child(0xA6A000)
417 183 [main] perl 3588 C:\cygwin\bin\perl.exe: *** fatal error -
418 unable to remap C:\cygwin\bin\cygsvn_subr-1-0.dll to same address
419 as parent(0x6FB30000) != 0x6FE60000 46 [main] perl 3488 fork: child
420 3588 - died waiting for dll loading, errno11
422 See L<https://cygwin.com/faq/faq-nochunks.html#faq.using.fixing-fork-failures>
423 It helps if not too many DLLs are loaded in memory so the available address space is larger,
424 e.g. stopping the MS Internet Explorer might help.
426 Use the perlrebase or rebase utilities to resolve the conflicting dll addresses.
427 The rebase package is included in the Cygwin setup. Use F<setup.exe>
428 from L<https://cygwin.com/install.html> to install it.
430 1. kill all perl processes and run C<perlrebase> or
432 2. kill all cygwin processes and services, start dash from cmd.exe and run C<rebaseall>.
436 On WinNT C<chown()> can change a file's user and group IDs. On Win9x C<chown()>
437 is a no-op, although this is appropriate since there is no security model.
439 =item * Miscellaneous
441 File locking using the C<F_GETLK> command to C<fcntl()> is a stub that
444 Win9x can not C<rename()> an open file (although WinNT can).
446 The Cygwin C<chroot()> implementation has holes (it can not restrict file
447 access by native Win32 programs).
449 Inplace editing C<perl -i> of files doesn't work without doing a backup
450 of the file being edited C<perl -i.bak> because of windowish restrictions,
451 therefore Perl adds the suffix C<.bak> automatically if you use C<perl -i>
452 without specifying a backup extension.
456 =head2 Prebuilt methods:
462 Returns the current working directory.
464 =item C<Cygwin::pid_to_winpid>
466 Translates a cygwin pid to the corresponding Windows pid (which may or
467 may not be the same).
469 =item C<Cygwin::winpid_to_pid>
471 Translates a Windows pid to the corresponding cygwin pid (if any).
473 =item C<Cygwin::win_to_posix_path>
475 Translates a Windows 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::posix_to_win_path>
481 Translates a cygwin path to the corresponding cygwin path respecting
482 the current mount points. With a second non-null argument returns an
483 absolute path. Double-byte characters will not be translated.
485 =item C<Cygwin::mount_table()>
487 Returns an array of [mnt_dir, mnt_fsname, mnt_type, mnt_opts].
489 perl -e 'for $i (Cygwin::mount_table) {print join(" ",@$i),"\n";}'
490 /bin c:\cygwin\bin system binmode,cygexec
491 /usr/bin c:\cygwin\bin system binmode
492 /usr/lib c:\cygwin\lib system binmode
493 / c:\cygwin system binmode
494 /cygdrive/c c: system binmode,noumount
495 /cygdrive/d d: system binmode,noumount
496 /cygdrive/e e: system binmode,noumount
498 =item C<Cygwin::mount_flags>
500 Returns the mount type and flags for a specified mount point.
501 A comma-separated string of mntent->mnt_type (always
502 "system" or "user"), then the mntent->mnt_opts, where
503 the first is always "binmode" or "textmode".
505 system|user,binmode|textmode,exec,cygexec,cygdrive,mixed,
506 notexec,managed,nosuid,devfs,proc,noumount
508 If the argument is "/cygdrive", then just the volume mount settings,
509 and the cygdrive mount prefix are returned.
511 User mounts override system mounts.
513 $ perl -e 'print Cygwin::mount_flags "/usr/bin"'
514 system,binmode,cygexec
515 $ perl -e 'print Cygwin::mount_flags "/cygdrive"'
516 binmode,cygdrive,/cygdrive
518 =item C<Cygwin::is_binmount>
520 Returns true if the given cygwin path is binary mounted, false if the
521 path is mounted in textmode.
523 =item C<Cygwin::sync_winenv>
525 Cygwin does not initialize all original Win32 environment variables.
526 See the bottom of this page L<https://cygwin.com/cygwin-ug-net/setup-env.html>
527 for "Restricted Win32 environment".
529 Certain Win32 programs called from cygwin programs might need some environment
530 variable, such as e.g. ADODB needs %COMMONPROGRAMFILES%.
531 Call Cygwin::sync_winenv() to copy all Win32 environment variables to your
532 process and note that cygwin will warn on every encounter of non-POSIX paths.
536 =head1 INSTALL PERL ON CYGWIN
538 This will install Perl, including I<man> pages.
540 make install 2>&1 | tee log.make-install
542 NOTE: If C<STDERR> is redirected C<make install> will B<not> prompt
543 you to install I<perl> into F</usr/bin>.
545 You may need to be I<Administrator> to run C<make install>. If you
546 are not, you must have write access to the directories in question.
548 Information on installing the Perl documentation in HTML format can be
549 found in the F<INSTALL> document.
551 =head1 MANIFEST ON CYGWIN
553 These are the files in the Perl release that contain references to Cygwin.
554 These very brief notes attempt to explain the reason for all conditional
555 code. Hopefully, keeping this up to date will allow the Cygwin port to
556 be kept as clean as possible.
562 INSTALL README.cygwin README.win32 MANIFEST
563 pod/perl.pod pod/perlport.pod pod/perlfaq3.pod
564 pod/perldelta.pod pod/perl5004delta.pod pod/perl56delta.pod
565 pod/perl561delta.pod pod/perl570delta.pod pod/perl572delta.pod
566 pod/perl573delta.pod pod/perl58delta.pod pod/perl581delta.pod
567 pod/perl590delta.pod pod/perlhist.pod pod/perlmodlib.pod
568 pod/perltoc.pod Porting/Glossary pod/perlgit.pod
569 Porting/checkAUTHORS.pl
570 dist/Cwd/Changes ext/Compress-Raw-Zlib/Changes
571 dist/Time-HiRes/Changes
572 ext/Compress-Raw-Zlib/README ext/Compress-Zlib/Changes
573 ext/DB_File/Changes ext/Encode/Changes ext/Sys-Syslog/Changes
574 ext/Win32API-File/Changes
575 lib/ExtUtils/CBuilder/Changes lib/ExtUtils/Changes
576 lib/ExtUtils/NOTES lib/ExtUtils/PATCHING lib/ExtUtils/README
577 lib/Net/Ping/Changes lib/Test/Harness/Changes
578 lib/Term/ANSIColor/ChangeLog lib/Term/ANSIColor/README
580 =item Build, Configure, Make, Install
583 ext/IPC/SysV/hints/cygwin.pl
584 ext/NDBM_File/hints/cygwin.pl
585 ext/ODBM_File/hints/cygwin.pl
587 Configure - help finding hints from uname,
588 shared libperl required for dynamic loading
589 Makefile.SH Cross/Makefile-cross-SH
591 Porting/patchls - cygwin in port list
592 installman - man pages with :: translated to .
593 installperl - install dll, install to 'pods'
594 makedepend.SH - uwinfix
595 regen_lib.pl - file permissions
600 vms/descrip_mms.template
601 win32/Makefile win32/makefile.mk
605 t/io/fs.t - no file mode checks if not ntsec
606 skip rename() check when not
608 t/io/tell.t - binmode
609 t/lib/cygwin.t - builtin cygwin function tests
610 t/op/groups.t - basegroup has ID = 0
611 t/op/magic.t - $^X/symlink WORKAROUND, s/.exe//
612 t/op/stat.t - no /dev, skip Win32 ftCreationTime quirk
613 (cache manager sometimes preserves ctime of
614 file previously created and deleted), no -u
616 t/op/taint.t - can't use empty path under Cygwin Perl
617 t/op/time.t - no tzset()
619 =item Compiled Perl Source
621 EXTERN.h - __declspec(dllimport)
622 XSUB.h - __declspec(dllexport)
623 cygwin/cygwin.c - os_extras (getcwd, spawn, and several
625 perl.c - os_extras, -i.bak
627 doio.c - win9x can not rename a file when it is open
628 pp_sys.c - do not define h_errno, init
629 _pwent_struct.pw_comment
631 util.h - PERL_FILE_IS_ABSOLUTE macro
632 pp.c - Comment about Posix vs IEEE math under
634 perlio.c - CR/LF mode
635 perliol.c - Comment about EXTCONST under Cygwin
637 =item Compiled Module Source
639 ext/Compress-Raw-Zlib/Makefile.PL
640 - Can't install via CPAN shell under Cygwin
641 ext/Compress-Raw-Zlib/zlib-src/zutil.h
642 - Cygwin is Unix-like and has vsnprintf
643 ext/Errno/Errno_pm.PL - Special handling for Win32 Perl under
645 ext/POSIX/POSIX.xs - tzname defined externally
646 ext/SDBM_File/sdbm/pair.c
647 - EXTCONST needs to be redefined from
649 ext/SDBM_File/sdbm/sdbm.c
651 ext/Sys/Syslog/Syslog.xs
652 - Cygwin has syslog.h
653 ext/Sys/Syslog/win32/compile.pl
654 - Convert paths to Windows paths
655 ext/Time-HiRes/HiRes.xs
656 - Various timers not available
657 ext/Time-HiRes/Makefile.PL
658 - Find w32api/windows.h
659 ext/Win32/Makefile.PL - Use various libraries under Cygwin
660 ext/Win32/Win32.xs - Child dir and child env under Cygwin
661 ext/Win32API-File/File.xs
662 - _open_osfhandle not implemented under
664 ext/Win32CORE/Win32CORE.c
665 - __declspec(dllexport)
667 =item Perl Modules/Scripts
669 ext/B/t/OptreeCheck.pm - Comment about stderr/stdout order under
671 ext/Digest-SHA/bin/shasum
672 - Use binary mode under Cygwin
673 ext/Sys/Syslog/win32/Win32.pm
674 - Convert paths to Windows paths
675 ext/Time-HiRes/HiRes.pm
676 - Comment about various timers not available
677 ext/Win32API-File/File.pm
678 - _open_osfhandle not implemented under
680 ext/Win32CORE/Win32CORE.pm
681 - History of Win32CORE under Cygwin
682 lib/Cwd.pm - hook to internal Cwd::cwd
683 lib/ExtUtils/CBuilder/Platform/cygwin.pm
684 - use gcc for ld, and link to libperl.dll.a
685 lib/ExtUtils/CBuilder.pm
686 - Cygwin is Unix-like
687 lib/ExtUtils/Install.pm - Install and rename issues under Cygwin
688 lib/ExtUtils/MM.pm - OS classifications
689 lib/ExtUtils/MM_Any.pm - Example for Cygwin
690 lib/ExtUtils/MakeMaker.pm
691 - require MM_Cygwin.pm
692 lib/ExtUtils/MM_Cygwin.pm
693 - canonpath, cflags, manifypods, perl_archive
694 lib/File/Fetch.pm - Comment about quotes using a Cygwin example
695 lib/File/Find.pm - on remote drives stat() always sets
697 lib/File/Spec/Cygwin.pm - case_tolerant
698 lib/File/Spec/Unix.pm - preserve //unc
699 lib/File/Spec/Win32.pm - References a message on cygwin.com
700 lib/File/Spec.pm - Pulls in lib/File/Spec/Cygwin.pm
701 lib/File/Temp.pm - no directory sticky bit
702 lib/Module/CoreList.pm - List of all module files and versions
703 lib/Net/Domain.pm - No domainname command under Cygwin
704 lib/Net/Netrc.pm - Bypass using stat() under Cygwin
705 lib/Net/Ping.pm - ECONREFUSED is EAGAIN under Cygwin
706 lib/Pod/Find.pm - Set 'pods' dir
707 lib/Pod/Perldoc/ToMan.pm - '-c' switch for pod2man
708 lib/Pod/Perldoc.pm - Use 'less' pager, and use .exe extension
709 lib/Term/ANSIColor.pm - Cygwin terminal info
710 lib/perl5db.pl - use stdin not /dev/tty
711 utils/perlbug.PL - Add CYGWIN environment variable to report
713 =item Perl Module Tests
716 ext/Compress-Zlib/t/14gzopen.t
717 ext/DB_File/t/db-btree.t
718 ext/DB_File/t/db-hash.t
719 ext/DB_File/t/db-recno.t
720 ext/DynaLoader/t/DynaLoader.t
721 ext/File-Glob/t/basic.t
722 ext/GDBM_File/t/gdbm.t
723 ext/POSIX/t/sysconf.t
725 ext/SDBM_File/t/sdbm.t
726 ext/Sys/Syslog/t/syslog.t
727 ext/Time-HiRes/t/HiRes.t
728 ext/Win32/t/Unicode.t
729 ext/Win32API-File/t/file.t
730 ext/Win32CORE/t/win32core.t
732 lib/Archive/Extract/t/01_Archive-Extract.t
733 lib/Archive/Tar/t/02_methods.t
734 lib/ExtUtils/t/Embed.t
735 lib/ExtUtils/t/eu_command.t
736 lib/ExtUtils/t/MM_Cygwin.t
737 lib/ExtUtils/t/MM_Unix.t
740 lib/File/Find/t/find.t
742 lib/File/Spec/t/crossplatform.t
743 lib/File/Spec/t/Spec.t
745 lib/Net/Ping/t/110_icmp_inst.t
746 lib/Net/Ping/t/500_ping_icmp.t
748 lib/Pod/Simple/t/perlcyg.pod
749 lib/Pod/Simple/t/perlcygo.txt
750 lib/Pod/Simple/t/perlfaq.pod
751 lib/Pod/Simple/t/perlfaqo.txt
757 =head1 BUGS ON CYGWIN
759 Support for swapping real and effective user and group IDs is incomplete.
760 On WinNT Cygwin provides C<setuid()>, C<seteuid()>, C<setgid()> and C<setegid()>.
761 However, additional Cygwin calls for manipulating WinNT access tokens
762 and security contexts are required.
766 Charles Wilson <cwilson@ece.gatech.edu>,
767 Eric Fifer <egf7@columbia.edu>,
768 alexander smishlajev <als@turnhere.com>,
769 Steven Morlock <newspost@morlock.net>,
770 Sebastien Barre <Sebastien.Barre@utc.fr>,
771 Teun Burgers <burgers@ecn.nl>,
772 Gerrit P. Haase <gp@familiehaase.de>,
773 Reini Urban <rurban@cpan.org>,
774 Jan Dubois <jand@activestate.com>,
775 Jerry D. Hedden <jdhedden@cpan.org>.
779 Last updated: 2012-02-08