1PERLCYGWIN(1) Perl Programmers Reference Guide PERLCYGWIN(1)
2
6 perlcygwin - Perl for Cygwin
7
9 This document will help you configure, make, test and install Perl on
10 Cygwin. This document also describes features of Cygwin that will
11 affect how Perl behaves at runtime.
12 NOTE: There are pre-built Perl packages available for Cygwin and a
14 version of Perl is provided in the normal Cygwin install. If you do
15 not need to customize the configuration, consider using one of those
16 packages.
17
19 Cygwin = GNU+Cygnus+Windows (Don't leave UNIX without it)
20 The Cygwin tools are ports of the popular GNU development tools for
21 Win32 platforms. They run thanks to the Cygwin library which provides
22 the UNIX system calls and environment these programs expect. More
23 information about this project can be found at:
24 <https://www.cygwin.com/>
26 A recent net or commercial release of Cygwin is required.
28 At the time this document was last updated, Cygwin 1.7.16 was current.
30 Cygwin Configuration
32 While building Perl some changes may be necessary to your Cygwin setup
33 so that Perl builds cleanly. These changes are not required for normal
34 Perl usage.
35 NOTE: The binaries that are built will run on all Win32 versions. They
37 do not depend on your host system (WinXP/Win2K/Win7) or your Cygwin
38 configuration (binary/text mounts, cvgserver). The only dependencies
39 come from hard-coded pathnames like /usr/local. However, your host
40 system and Cygwin configuration will affect Perl's runtime behavior
41 (see "TEST").
42 • "PATH"
44 Set the "PATH" environment variable so that Configure finds the
46 Cygwin versions of programs. Any not-needed Windows directories
47 should be removed or moved to the end of your "PATH".
48 • nroff
50 If you do not have nroff (which is part of the groff package),
52 Configure will not prompt you to install man pages.
53
55 The default options gathered by Configure with the assistance of
56 hints/cygwin.sh will build a Perl that supports dynamic loading (which
57 requires a shared cygperl5_16.dll).
58 This will run Configure and keep a record:
60 ./Configure 2>&1 | tee log.configure
62 If you are willing to accept all the defaults run Configure with -de.
64 However, several useful customizations are available.
65 Stripping Perl Binaries on Cygwin
67 It is possible to strip the EXEs and DLLs created by the build process.
68 The resulting binaries will be significantly smaller. If you want the
69 binaries to be stripped, you can either add a -s option when Configure
70 prompts you,
71 Any additional ld flags (NOT including libraries)? [none] -s
73 Any special flags to pass to g++ to create a dynamically loaded
74 library?
75 [none] -s
76 Any special flags to pass to gcc to use dynamic linking? [none] -s
77 or you can edit hints/cygwin.sh and uncomment the relevant variables
79 near the end of the file.
80 Optional Libraries for Perl on Cygwin
82 Several Perl functions and modules depend on the existence of some
83 optional libraries. Configure will find them if they are installed in
84 one of the directories listed as being used for library searches. Pre-
85 built packages for most of these are available from the Cygwin
86 installer.
87 • "-lcrypt"
89 The crypt package distributed with Cygwin is a Linux compatible
91 56-bit DES crypt port by Corinna Vinschen.
92 Alternatively, the crypt libraries in GNU libc have been ported to
94 Cygwin.
95 As of libcrypt 1.3 (March 2016), you will need to install the
97 libcrypt-devel package for Configure to detect crypt().
98 • "-lgdbm_compat" ("use GDBM_File")
100 GDBM is available for Cygwin.
102 NOTE: The GDBM library only works on NTFS partitions.
104 • "-ldb" ("use DB_File")
106 BerkeleyDB is available for Cygwin.
108 NOTE: The BerkeleyDB library only completely works on NTFS
110 partitions.
111 • "cygserver" ("use IPC::SysV")
113 A port of SysV IPC is available for Cygwin.
115 NOTE: This has not been extensively tested. In particular,
117 "d_semctl_semun" is undefined because it fails a Configure test and
118 on Win9x the shm*() functions seem to hang. It also creates a
119 compile time dependency because perl.h includes <sys/ipc.h> and
120 <sys/sem.h> (which will be required in the future when compiling
121 CPAN modules). CURRENTLY NOT SUPPORTED!
122 • "-lutil"
124 Included with the standard Cygwin netrelease is the inetutils
126 package which includes libutil.a.
127 Configure-time Options for Perl on Cygwin
129 The INSTALL document describes several Configure-time options. Some of
130 these will work with Cygwin, others are not yet possible. Also, some
131 of these are experimental. You can either select an option when
132 Configure prompts you or you can define (undefine) symbols on the
133 command line.
134 • "-Uusedl"
136 Undefining this symbol forces Perl to be compiled statically.
138 • "-Dusemymalloc"
140 By default Perl does not use the "malloc()" included with the Perl
142 source, because it was slower and not entirely thread-safe. If you
143 want to force Perl to build with the old -Dusemymalloc define this.
144 • "-Uuseperlio"
146 Undefining this symbol disables the PerlIO abstraction. PerlIO is
148 now the default; it is not recommended to disable PerlIO.
149 • "-Dusemultiplicity"
151 Multiplicity is required when embedding Perl in a C program and
153 using more than one interpreter instance. This is only required
154 when you build a not-threaded perl with "-Uuseithreads".
155 • "-Uuse64bitint"
157 By default Perl uses 64 bit integers. If you want to use smaller
159 32 bit integers, define this symbol.
160 • "-Duselongdouble"
162 gcc supports long doubles (12 bytes). However, several additional
164 long double math functions are necessary to use them within Perl
165 ({atan2, cos, exp, floor, fmod, frexp, isnan, log, modf, pow, sin,
166 sqrt}l, strtold). These are not yet available with newlib, the
167 Cygwin libc.
168 • "-Uuseithreads"
170 Define this symbol if you want not-threaded faster perl.
172 • "-Duselargefiles"
174 Cygwin uses 64-bit integers for internal size and position
176 calculations, this will be correctly detected and defined by
177 Configure.
178 • "-Dmksymlinks"
180 Use this to build perl outside of the source tree. Details can be
182 found in the INSTALL document. This is the recommended way to
183 build perl from sources.
184 Suspicious Warnings on Cygwin
186 You may see some messages during Configure that seem suspicious.
187 • Win9x and "d_eofnblk"
189 Win9x does not correctly report "EOF" with a non-blocking read on a
191 closed pipe. You will see the following messages:
192 But it also returns -1 to signal EOF, so be careful!
194 WARNING: you can't distinguish between EOF and no data!
195 *** WHOA THERE!!! ***
197 The recommended value for $d_eofnblk on this machine was
198 "define"!
199 Keep the recommended value? [y]
200 At least for consistency with WinNT, you should keep the
202 recommended value.
203 • Compiler/Preprocessor defines
205 The following error occurs because of the Cygwin "#define" of
207 "_LONG_DOUBLE":
208 Guessing which symbols your C compiler and preprocessor define...
210 try.c:<line#>: missing binary operator
211 This failure does not seem to cause any problems. With older gcc
213 versions, "parse error" is reported instead of "missing binary
214 operator".
215
217 Simply run make and wait:
218 make 2>&1 | tee log.make
220
222 There are two steps to running the test suite:
223 make test 2>&1 | tee log.make-test
225 cd t; ./perl harness 2>&1 | tee ../log.harness
227 The same tests are run both times, but more information is provided
229 when running as "./perl harness".
230 Test results vary depending on your host system and your Cygwin
232 configuration. If a test can pass in some Cygwin setup, it is always
233 attempted and explainable test failures are documented. It is possible
234 for Perl to pass all the tests, but it is more likely that some tests
235 will fail for one of the reasons listed below.
236 File Permissions on Cygwin
238 UNIX file permissions are based on sets of mode bits for
239 {read,write,execute} for each {user,group,other}. By default Cygwin
240 only tracks the Win32 read-only attribute represented as the UNIX file
241 user write bit (files are always readable, files are executable if they
242 have a .{com,bat,exe} extension or begin with "#!", directories are
243 always readable and executable). On WinNT with the ntea "CYGWIN"
244 setting, the additional mode bits are stored as extended file
245 attributes. On WinNT with the default ntsec "CYGWIN" setting,
246 permissions use the standard WinNT security descriptors and access
247 control lists. Without one of these options, these tests will fail
248 (listing not updated yet):
249 Failed Test List of failed
251 ------------------------------------
252 io/fs.t 5, 7, 9-10
253 lib/anydbm.t 2
254 lib/db-btree.t 20
255 lib/db-hash.t 16
256 lib/db-recno.t 18
257 lib/gdbm.t 2
258 lib/ndbm.t 2
259 lib/odbm.t 2
260 lib/sdbm.t 2
261 op/stat.t 9, 20 (.tmp not an executable extension)
262 NDBM_File and ODBM_File do not work on FAT filesystems
264 Do not use NDBM_File or ODBM_File on FAT filesystem. They can be built
265 on a FAT filesystem, but many tests will fail:
266 ../ext/NDBM_File/ndbm.t 13 3328 71 59 83.10% 1-2 4 16-71
268 ../ext/ODBM_File/odbm.t 255 65280 ?? ?? % ??
269 ../lib/AnyDBM_File.t 2 512 12 2 16.67% 1 4
270 ../lib/Memoize/t/errors.t 0 139 11 5 45.45% 7-11
271 ../lib/Memoize/t/tie_ndbm.t 13 3328 4 4 100.00% 1-4
272 run/fresh_perl.t 97 1 1.03% 91
273 If you intend to run only on FAT (or if using AnyDBM_File on FAT), run
275 Configure with the -Ui_ndbm and -Ui_dbm options to prevent NDBM_File
276 and ODBM_File being built.
277 With NTFS (and no CYGWIN=nontsec), there should be no problems even if
279 perl was built on FAT.
280 "fork()" failures in io_* tests
282 A "fork()" failure may result in the following tests failing:
283 ext/IO/lib/IO/t/io_multihomed.t
285 ext/IO/lib/IO/t/io_sock.t
286 ext/IO/lib/IO/t/io_unix.t
287 See comment on fork in "Miscellaneous" below.
289
291 Script Portability on Cygwin
292 Cygwin does an outstanding job of providing UNIX-like semantics on top
293 of Win32 systems. However, in addition to the items noted above, there
294 are some differences that you should know about. This is a very brief
295 guide to portability, more information can be found in the Cygwin
296 documentation.
297 • Pathnames
299 Cygwin pathnames are separated by forward (/) slashes, Universal
301 Naming Codes (//UNC) are also supported Since cygwin-1.7 non-POSIX
302 pathnames are discouraged. Names may contain all printable
303 characters.
304 File names are case insensitive, but case preserving. A pathname
306 that contains a backslash or drive letter is a Win32 pathname, and
307 not subject to the translations applied to POSIX style pathnames,
308 but cygwin will warn you, so better convert them to POSIX.
309 For conversion we have "Cygwin::win_to_posix_path()" and
311 "Cygwin::posix_to_win_path()".
312 Since cygwin-1.7 pathnames are UTF-8 encoded.
314 • Text/Binary
316 Since cygwin-1.7 textmounts are deprecated and strongly
318 discouraged.
319 When a file is opened it is in either text or binary mode. In text
321 mode a file is subject to CR/LF/Ctrl-Z translations. With Cygwin,
322 the default mode for an "open()" is determined by the mode of the
323 mount that underlies the file. See "Cygwin::is_binmount"(). Perl
324 provides a "binmode()" function to set binary mode on files that
325 otherwise would be treated as text. "sysopen()" with the "O_TEXT"
326 flag sets text mode on files that otherwise would be treated as
327 binary:
328 sysopen(FOO, "bar", O_WRONLY|O_CREAT|O_TEXT)
330 "lseek()", "tell()" and "sysseek()" only work with files opened in
332 binary mode.
333 The text/binary issue is covered at length in the Cygwin
335 documentation.
336 • PerlIO
338 PerlIO overrides the default Cygwin Text/Binary behaviour. A file
340 will always be treated as binary, regardless of the mode of the
341 mount it lives on, just like it is in UNIX. So CR/LF translation
342 needs to be requested in either the "open()" call like this:
343 open(FH, ">:crlf", "out.txt");
345 which will do conversion from LF to CR/LF on the output, or in the
347 environment settings (add this to your .bashrc):
348 export PERLIO=crlf
350 which will pull in the crlf PerlIO layer which does LF -> CRLF
352 conversion on every output generated by perl.
353 • .exe
355 The Cygwin "stat()", "lstat()" and "readlink()" functions make the
357 .exe extension transparent by looking for foo.exe when you ask for
358 foo (unless a foo also exists). Cygwin does not require a .exe
359 extension, but gcc adds it automatically when building a program.
360 However, when accessing an executable as a normal file (e.g., cp in
361 a makefile) the .exe is not transparent. The install program
362 included with Cygwin automatically appends a .exe when necessary.
363 • Cygwin vs. Windows process ids
365 Cygwin processes have their own pid, which is different from the
367 underlying windows pid. Most posix compliant Proc functions expect
368 the cygwin pid, but several Win32::Process functions expect the
369 winpid. E.g. $$ is the cygwin pid of /usr/bin/perl, which is not
370 the winpid. Use "Cygwin::pid_to_winpid()" and
371 "Cygwin::winpid_to_pid()" to translate between them.
372 • Cygwin vs. Windows errors
374 Under Cygwin, $^E is the same as $!. When using Win32 API
376 Functions, use "Win32::GetLastError()" to get the last Windows
377 error.
378 • rebase errors on fork or system
380 Using "fork()" or "system()" out to another perl after loading
382 multiple dlls may result on a DLL baseaddress conflict. The
383 internal cygwin error looks like like the following:
384 0 [main] perl 8916 child_info_fork::abort: data segment start:
386 parent (0xC1A000) != child(0xA6A000)
387 or:
389 183 [main] perl 3588 C:\cygwin\bin\perl.exe: *** fatal error -
391 unable to remap C:\cygwin\bin\cygsvn_subr-1-0.dll to same address
392 as parent(0x6FB30000) != 0x6FE60000 46 [main] perl 3488 fork: child
393 3588 - died waiting for dll loading, errno11
394 See
396 <https://cygwin.com/faq/faq-nochunks.html#faq.using.fixing-fork-failures>
397 It helps if not too many DLLs are loaded in memory so the available
398 address space is larger, e.g. stopping the MS Internet Explorer
399 might help.
400 Use the perlrebase or rebase utilities to resolve the conflicting
402 dll addresses. The rebase package is included in the Cygwin setup.
403 Use setup.exe from <https://cygwin.com/install.html> to install it.
404 1. kill all perl processes and run "perlrebase" or
406 2. kill all cygwin processes and services, start dash from cmd.exe
408 and run "rebaseall".
409 • "chown()"
411 On WinNT "chown()" can change a file's user and group IDs. On
413 Win9x "chown()" is a no-op, although this is appropriate since
414 there is no security model.
415 • Miscellaneous
417 File locking using the "F_GETLK" command to "fcntl()" is a stub
419 that returns "ENOSYS".
420 Win9x can not "rename()" an open file (although WinNT can).
422 The Cygwin "chroot()" implementation has holes (it can not restrict
424 file access by native Win32 programs).
425 Inplace editing "perl -i" of files doesn't work without doing a
427 backup of the file being edited "perl -i.bak" because of windowish
428 restrictions, therefore Perl adds the suffix ".bak" automatically
429 if you use "perl -i" without specifying a backup extension.
430 Prebuilt methods:
432 "Cwd::cwd"
433 Returns the current working directory.
434 "Cygwin::pid_to_winpid"
436 Translates a cygwin pid to the corresponding Windows pid (which may
437 or may not be the same).
438 "Cygwin::winpid_to_pid"
440 Translates a Windows pid to the corresponding cygwin pid (if any).
441 "Cygwin::win_to_posix_path"
443 Translates a Windows path to the corresponding cygwin path
444 respecting the current mount points. With a second non-null
445 argument returns an absolute path. Double-byte characters will not
446 be translated.
447 "Cygwin::posix_to_win_path"
449 Translates a cygwin path to the corresponding cygwin path
450 respecting the current mount points. With a second non-null
451 argument returns an absolute path. Double-byte characters will not
452 be translated.
453 "Cygwin::mount_table()"
455 Returns an array of [mnt_dir, mnt_fsname, mnt_type, mnt_opts].
456 perl -e 'for $i (Cygwin::mount_table) {print join(" ",@$i),"\n";}'
458 /bin c:\cygwin\bin system binmode,cygexec
459 /usr/bin c:\cygwin\bin system binmode
460 /usr/lib c:\cygwin\lib system binmode
461 / c:\cygwin system binmode
462 /cygdrive/c c: system binmode,noumount
463 /cygdrive/d d: system binmode,noumount
464 /cygdrive/e e: system binmode,noumount
465 "Cygwin::mount_flags"
467 Returns the mount type and flags for a specified mount point. A
468 comma-separated string of mntent->mnt_type (always "system" or
469 "user"), then the mntent->mnt_opts, where the first is always
470 "binmode" or "textmode".
471 system|user,binmode|textmode,exec,cygexec,cygdrive,mixed,
473 notexec,managed,nosuid,devfs,proc,noumount
474 If the argument is "/cygdrive", then just the volume mount
476 settings, and the cygdrive mount prefix are returned.
477 User mounts override system mounts.
479 $ perl -e 'print Cygwin::mount_flags "/usr/bin"'
481 system,binmode,cygexec
482 $ perl -e 'print Cygwin::mount_flags "/cygdrive"'
483 binmode,cygdrive,/cygdrive
484 "Cygwin::is_binmount"
486 Returns true if the given cygwin path is binary mounted, false if
487 the path is mounted in textmode.
488 "Cygwin::sync_winenv"
490 Cygwin does not initialize all original Win32 environment
491 variables. See the bottom of this page
492 <https://cygwin.com/cygwin-ug-net/setup-env.html> for "Restricted
493 Win32 environment".
494 Certain Win32 programs called from cygwin programs might need some
496 environment variable, such as e.g. ADODB needs
497 %COMMONPROGRAMFILES%. Call Cygwin::sync_winenv() to copy all Win32
498 environment variables to your process and note that cygwin will
499 warn on every encounter of non-POSIX paths.
500
502 This will install Perl, including man pages.
503 make install 2>&1 | tee log.make-install
505 NOTE: If "STDERR" is redirected "make install" will not prompt you to
507 install perl into /usr/bin.
508 You may need to be Administrator to run "make install". If you are
510 not, you must have write access to the directories in question.
511 Information on installing the Perl documentation in HTML format can be
513 found in the INSTALL document.
514
516 These are the files in the Perl release that contain references to
517 Cygwin. These very brief notes attempt to explain the reason for all
518 conditional code. Hopefully, keeping this up to date will allow the
519 Cygwin port to be kept as clean as possible.
520 Documentation
522 INSTALL README.cygwin README.win32 MANIFEST
523 pod/perl.pod pod/perlport.pod pod/perlfaq3.pod
524 pod/perldelta.pod pod/perl5004delta.pod pod/perl56delta.pod
525 pod/perl561delta.pod pod/perl570delta.pod pod/perl572delta.pod
526 pod/perl573delta.pod pod/perl58delta.pod pod/perl581delta.pod
527 pod/perl590delta.pod pod/perlhist.pod pod/perlmodlib.pod
528 pod/perltoc.pod Porting/Glossary pod/perlgit.pod
529 Porting/checkAUTHORS.pl
530 dist/Cwd/Changes ext/Compress-Raw-Zlib/Changes
531 dist/Time-HiRes/Changes
532 ext/Compress-Raw-Zlib/README ext/Compress-Zlib/Changes
533 ext/DB_File/Changes ext/Encode/Changes ext/Sys-Syslog/Changes
534 ext/Win32API-File/Changes
535 lib/ExtUtils/CBuilder/Changes lib/ExtUtils/Changes
536 lib/ExtUtils/NOTES lib/ExtUtils/PATCHING lib/ExtUtils/README
537 lib/Net/Ping/Changes lib/Test/Harness/Changes
538 lib/Term/ANSIColor/ChangeLog lib/Term/ANSIColor/README
539 Build, Configure, Make, Install
541 cygwin/Makefile.SHs
542 ext/IPC/SysV/hints/cygwin.pl
543 ext/NDBM_File/hints/cygwin.pl
544 ext/ODBM_File/hints/cygwin.pl
545 hints/cygwin.sh
546 Configure - help finding hints from uname,
547 shared libperl required for dynamic loading
548 Makefile.SH Cross/Makefile-cross-SH
549 - linklibperl
550 Porting/patchls - cygwin in port list
551 installman - man pages with :: translated to .
552 installperl - install dll, install to 'pods'
553 makedepend.SH - uwinfix
554 regen_lib.pl - file permissions
555 NetWare/Makefile
557 plan9/mkfile
558 hints/uwin.sh
559 vms/descrip_mms.template
560 win32/Makefile
561 Tests
563 t/io/fs.t - no file mode checks if not ntsec
564 skip rename() check when not
565 check_case:relaxed
566 t/io/tell.t - binmode
567 t/lib/cygwin.t - builtin cygwin function tests
568 t/op/groups.t - basegroup has ID = 0
569 t/op/magic.t - $^X/symlink WORKAROUND, s/.exe//
570 t/op/stat.t - no /dev, skip Win32 ftCreationTime quirk
571 (cache manager sometimes preserves ctime of
572 file previously created and deleted), no -u
573 (setuid)
574 t/op/taint.t - can't use empty path under Cygwin Perl
575 t/op/time.t - no tzset()
576 Compiled Perl Source
578 EXTERN.h - __declspec(dllimport)
579 XSUB.h - __declspec(dllexport)
580 cygwin/cygwin.c - os_extras (getcwd, spawn, and several
581 Cygwin:: functions)
582 perl.c - os_extras, -i.bak
583 perl.h - binmode
584 doio.c - win9x can not rename a file when it is open
585 pp_sys.c - do not define h_errno, init
586 _pwent_struct.pw_comment
587 util.c - use setenv
588 util.h - PERL_FILE_IS_ABSOLUTE macro
589 pp.c - Comment about Posix vs IEEE math under
590 Cygwin
591 perlio.c - CR/LF mode
592 perliol.c - Comment about EXTCONST under Cygwin
593 Compiled Module Source
595 ext/Compress-Raw-Zlib/Makefile.PL
596 - Can't install via CPAN shell under Cygwin
597 ext/Compress-Raw-Zlib/zlib-src/zutil.h
598 - Cygwin is Unix-like and has vsnprintf
599 ext/Errno/Errno_pm.PL - Special handling for Win32 Perl under
600 Cygwin
601 ext/POSIX/POSIX.xs - tzname defined externally
602 ext/SDBM_File/sdbm/pair.c
603 - EXTCONST needs to be redefined from
604 EXTERN.h
605 ext/SDBM_File/sdbm/sdbm.c
606 - binary open
607 ext/Sys/Syslog/Syslog.xs
608 - Cygwin has syslog.h
609 ext/Sys/Syslog/win32/compile.pl
610 - Convert paths to Windows paths
611 ext/Time-HiRes/HiRes.xs
612 - Various timers not available
613 ext/Time-HiRes/Makefile.PL
614 - Find w32api/windows.h
615 ext/Win32/Makefile.PL - Use various libraries under Cygwin
616 ext/Win32/Win32.xs - Child dir and child env under Cygwin
617 ext/Win32API-File/File.xs
618 - _open_osfhandle not implemented under
619 Cygwin
620 ext/Win32CORE/Win32CORE.c
621 - __declspec(dllexport)
622 Perl Modules/Scripts
624 ext/B/t/OptreeCheck.pm - Comment about stderr/stdout order under
625 Cygwin
626 ext/Digest-SHA/bin/shasum
627 - Use binary mode under Cygwin
628 ext/Sys/Syslog/win32/Win32.pm
629 - Convert paths to Windows paths
630 ext/Time-HiRes/HiRes.pm
631 - Comment about various timers not available
632 ext/Win32API-File/File.pm
633 - _open_osfhandle not implemented under
634 Cygwin
635 ext/Win32CORE/Win32CORE.pm
636 - History of Win32CORE under Cygwin
637 lib/Cwd.pm - hook to internal Cwd::cwd
638 lib/ExtUtils/CBuilder/Platform/cygwin.pm
639 - use gcc for ld, and link to libperl.dll.a
640 lib/ExtUtils/CBuilder.pm
641 - Cygwin is Unix-like
642 lib/ExtUtils/Install.pm - Install and rename issues under Cygwin
643 lib/ExtUtils/MM.pm - OS classifications
644 lib/ExtUtils/MM_Any.pm - Example for Cygwin
645 lib/ExtUtils/MakeMaker.pm
646 - require MM_Cygwin.pm
647 lib/ExtUtils/MM_Cygwin.pm
648 - canonpath, cflags, manifypods, perl_archive
649 lib/File/Fetch.pm - Comment about quotes using a Cygwin example
650 lib/File/Find.pm - on remote drives stat() always sets
651 st_nlink to 1
652 lib/File/Spec/Cygwin.pm - case_tolerant
653 lib/File/Spec/Unix.pm - preserve //unc
654 lib/File/Spec/Win32.pm - References a message on cygwin.com
655 lib/File/Spec.pm - Pulls in lib/File/Spec/Cygwin.pm
656 lib/File/Temp.pm - no directory sticky bit
657 lib/Module/CoreList.pm - List of all module files and versions
658 lib/Net/Domain.pm - No domainname command under Cygwin
659 lib/Net/Netrc.pm - Bypass using stat() under Cygwin
660 lib/Net/Ping.pm - ECONREFUSED is EAGAIN under Cygwin
661 lib/Pod/Find.pm - Set 'pods' dir
662 lib/Pod/Perldoc/ToMan.pm - '-c' switch for pod2man
663 lib/Pod/Perldoc.pm - Use 'less' pager, and use .exe extension
664 lib/Term/ANSIColor.pm - Cygwin terminal info
665 lib/perl5db.pl - use stdin not /dev/tty
666 utils/perlbug.PL - Add CYGWIN environment variable to report
667 Perl Module Tests
669 dist/Cwd/t/cwd.t
670 ext/Compress-Zlib/t/14gzopen.t
671 ext/DB_File/t/db-btree.t
672 ext/DB_File/t/db-hash.t
673 ext/DB_File/t/db-recno.t
674 ext/DynaLoader/t/DynaLoader.t
675 ext/File-Glob/t/basic.t
676 ext/GDBM_File/t/gdbm.t
677 ext/POSIX/t/sysconf.t
678 ext/POSIX/t/time.t
679 ext/SDBM_File/t/sdbm.t
680 ext/Sys/Syslog/t/syslog.t
681 ext/Time-HiRes/t/HiRes.t
682 ext/Win32/t/Unicode.t
683 ext/Win32API-File/t/file.t
684 ext/Win32CORE/t/win32core.t
685 lib/AnyDBM_File.t
686 lib/Archive/Extract/t/01_Archive-Extract.t
687 lib/Archive/Tar/t/02_methods.t
688 lib/ExtUtils/t/Embed.t
689 lib/ExtUtils/t/eu_command.t
690 lib/ExtUtils/t/MM_Cygwin.t
691 lib/ExtUtils/t/MM_Unix.t
692 lib/File/Compare.t
693 lib/File/Copy.t
694 lib/File/Find/t/find.t
695 lib/File/Path.t
696 lib/File/Spec/t/crossplatform.t
697 lib/File/Spec/t/Spec.t
698 lib/Net/hostent.t
699 lib/Net/Ping/t/110_icmp_inst.t
700 lib/Net/Ping/t/500_ping_icmp.t
701 lib/Net/t/netrc.t
702 lib/Pod/Simple/t/perlcyg.pod
703 lib/Pod/Simple/t/perlcygo.txt
704 lib/Pod/Simple/t/perlfaq.pod
705 lib/Pod/Simple/t/perlfaqo.txt
706 lib/User/grent.t
707 lib/User/pwent.t
708
710 Support for swapping real and effective user and group IDs is
711 incomplete. On WinNT Cygwin provides "setuid()", "seteuid()",
712 "setgid()" and "setegid()". However, additional Cygwin calls for
713 manipulating WinNT access tokens and security contexts are required.
714
716 Charles Wilson <cwilson@ece.gatech.edu>, Eric Fifer
717 <egf7@columbia.edu>, alexander smishlajev <als@turnhere.com>, Steven
718 Morlock <newspost@morlock.net>, Sebastien Barre
719 <Sebastien.Barre@utc.fr>, Teun Burgers <burgers@ecn.nl>, Gerrit P.
720 Haase <gp@familiehaase.de>, Reini Urban <rurban@cpan.org>, Jan Dubois
721 <jand@activestate.com>, Jerry D. Hedden <jdhedden@cpan.org>.
722
724 Last updated: 2012-02-08
725perl v5.34.1 2022-03-15 PERLCYGWIN(1)