system calls and environment these programs expect. More information
about this project can be found at:
- http://www.cygwin.com/
+ F<http://www.cygwin.com/>
A recent net or commercial release of Cygwin is required.
-At the time this document was last updated, Cygwin 1.5.2 was current.
+At the time this document was last updated, Cygwin 1.5.24 was current.
=head2 Cygwin Configuration
On WinNT with either the I<ntea> or I<ntsec> C<CYGWIN> settings, directory
and file permissions may not be set correctly. Since the build process
-creates directories and files, to be safe you may want to run a `C<chmod
--R +w *>' on the entire Perl source tree.
+creates directories and files, to be safe you may want to run a
+C<chmod -R +w *> on the entire Perl source tree.
Also, it is a well known WinNT "feature" that files created by a login
that is a member of the I<Administrators> group will be owned by the
BerkeleyDB is available for Cygwin.
-NOTE: The BerkeleyDB library only completely works on NTFS partitions.
+NOTE: The BerkeleyDB library only completely works on NTFS partitions
+and db-4.3 is flawed.
-=item * C<-lcygipc> (C<use IPC::SysV>)
+=item * C<cygserver> (C<use IPC::SysV>)
A port of SysV IPC is available for Cygwin.
=item * I<dlsym()>
I<ld2> is needed to build dynamic libraries, but it does not exist
-when C<dlsym()> checking occurs (it is not created until `C<make>' runs).
+when C<dlsym()> checking occurs (it is not created until C<make> runs).
You will see the following message:
Checking whether your C<dlsym()> needs a leading underscore ...
=head2 ld2 on Cygwin
-During `C<make>', I<ld2> will be created and installed in your $installbin
+During C<make>, I<ld2> will be created and installed in your $installbin
directory (where you said to put public executables). It does not
-wait until the `C<make install>' process to install the I<ld2> script,
-this is because the remainder of the `C<make>' refers to I<ld2> without
+wait until the C<make install> process to install the I<ld2> script,
+this is because the remainder of the C<make> refers to I<ld2> without
fully specifying its path and does this from multiple subdirectories.
-The assumption is that $installbin is in your current C<PATH>. If this
-is not the case `C<make>' will fail at some point. If this happens,
+The assumption is that I<$installbin> is in your current C<PATH>. If this
+is not the case C<make> will fail at some point. If this happens,
just manually copy I<ld2> from the source directory to somewhere in
your C<PATH>.
make test 2>&1 | tee log.make-test
- cd t;./perl harness 2>&1 | tee ../log.harness
+ cd t; ./perl harness 2>&1 | tee ../log.harness
The same tests are run both times, but more information is provided when
-running as `C<./perl harness>'.
+running as C<./perl harness>.
Test results vary depending on your host system and your Cygwin
configuration. If a test can pass in some Cygwin setup, it is always
have a F<.{com,bat,exe}> extension or begin with C<#!>, directories are
always readable and executable). On WinNT with the I<ntea> C<CYGWIN>
setting, the additional mode bits are stored as extended file attributes.
-On WinNT with the I<ntsec> C<CYGWIN> setting, permissions use the standard
-WinNT security descriptors and access control lists. Without one of
+On WinNT with the default I<ntsec> C<CYGWIN> setting, permissions use the
+standard WinNT security descriptors and access control lists. Without one of
these options, these tests will fail (listing not updated yet):
Failed Test List of failed
run Configure with the -Ui_ndbm and -Ui_dbm options to prevent
NDBM_File and ODBM_File being built.
-With NTFS (and CYGWIN=ntsec), there should be no problems even if
+With NTFS (and no CYGWIN=nontsec), there should be no problems even if
perl was built on FAT.
=head2 C<fork()> failures in io_* tests
contains a backslash or drive letter is a Win32 pathname (and not subject
to the translations applied to POSIX style pathnames).
+For conversion we have C<Cygwin::win_to_posix_path()> and
+C<Cygwin::posix_to_win_path()>.
+
+Pathnames may not contain Unicode characters. C<Cygwin> still uses the
+ANSI API calls and no Unicode calls because of newlib deficiencies.
+There's an unofficial unicode patch for cygwin at
+F<http://www.okisoft.co.jp/esc/utf8-cygwin/>
+
=item * Text/Binary
When a file is opened it is in either text or binary mode. In text mode
a file is subject to CR/LF/Ctrl-Z translations. With Cygwin, the default
mode for an C<open()> is determined by the mode of the mount that underlies
-the file. Perl provides a C<binmode()> function to set binary mode on files
+the file. See C<Cygwin::is_binmount()> and C<Cygwin::is_textmount()>.
+Perl provides a C<binmode()> function to set binary mode on files
that otherwise would be treated as text. C<sysopen()> with the C<O_TEXT>
flag sets text mode on files that otherwise would be treated as binary:
=item C<Cwd::cwd>
-Returns current working directory.
+Returns the current working directory.
=item C<Cygwin::pid_to_winpid>
Translates a Windows pid to the corresponding cygwin pid (if any).
+=item C<Cygwin::win_to_posix_path>
+
+Translates a Windows path to the corresponding cygwin path respecting
+the current mount points. With a second non-null argument returns an
+absolute path. Double-byte characters will not be translated.
+
+=item C<Cygwin::posix_to_win_path>
+
+Translates a cygwin path to the corresponding cygwin path respecting
+the current mount points. With a second non-null argument returns an
+absolute path. Double-byte characters will not be translated.
+
+=item C<Cygwin::mount_table()>
+
+Returns an array of [mnt_dir, mnt_fsname, mnt_type, mnt_opts].
+
+ perl -e 'for $i (Cygwin::mount_table) {print join(" ",@$i),"\n";}'
+ /bin c:\cygwin\bin system binmode,cygexec
+ /usr/bin c:\cygwin\bin system binmode
+ /usr/lib c:\cygwin\lib system binmode
+ / c:\cygwin system binmode
+ /cygdrive/c c: system binmode,noumount
+ /cygdrive/d d: system binmode,noumount
+ /cygdrive/e e: system binmode,noumount
+
+=item C<Cygwin::mount_flags>
+
+Returns the mount type and flags for a specified mount point.
+A comma-seperated string of mntent->mnt_type (always
+"system" or "user"), then the mntent->mnt_opts, where
+the first is always "binmode" or "textmode".
+
+ system|user,binmode|textmode,exec,cygexec,cygdrive,mixed,
+ notexec,managed,nosuid,devfs,proc,noumount
+
+If the argument is "/cygdrive", just the volume mount settings are returned.
+
+User mounts override system mounts.
+
+ $ perl -e 'print Cygwin::mount_flags "/usr/bin"'
+ system,binmode,cygexec
+ $ perl -e 'print Cygwin::mount_flags "/cygdrive"'
+ binmode,cygdrive
+
+=item C<Cygwin::is_binmount>
+
+Returns true if the given cygwin path is binary mounted, false if the
+path is mounted in textmode.
+
+=item C<Cygwin::is_textmount>
+
+Returns true if the given cygwin path is mounted in textmode (C<"\r\n"> C<lt>=C<gt> C<"\n">),
+false if the path is mounted binary. The result is complementary to C<Cygwin::is_binmount()>.
+
=back
=head1 INSTALL PERL ON CYGWIN
make install 2>&1 | tee log.make-install
-NOTE: If C<STDERR> is redirected `C<make install>' will B<not> prompt
+NOTE: If C<STDERR> is redirected C<make install> will B<not> prompt
you to install I<perl> into F</usr/bin>.
-You may need to be I<Administrator> to run `C<make install>'. If you
+You may need to be I<Administrator> to run C<make install>. If you
are not, you must have write access to the directories in question.
Information on installing the Perl documentation in HTML format can be
EXTERN.h - __declspec(dllimport)
XSUB.h - __declspec(dllexport)
- cygwin/cygwin.c - os_extras (getcwd, spawn, Cygwin::winpid_to_pid,
- Cygwin::pid_to_winpid)
+ cygwin/cygwin.c - os_extras (getcwd, spawn, and several Cygwin:: functions)
perl.c - os_extras
perl.h - binmode
doio.c - win9x can not rename a file when it is open
lib/ExtUtils/MM_Cygwin.pm
- canonpath, cflags, manifypods, perl_archive
lib/File/Find.pm - on remote drives stat() always sets st_nlink to 1
+ lib/File/Spec/Cygwin.pm - case_tolerant
lib/File/Spec/Unix.pm - preserve //unc
lib/File/Temp.pm - no directory sticky bit
lib/perl5db.pl - use stdin not /dev/tty
Steven Morlock <newspost@morlock.net>,
Sebastien Barre <Sebastien.Barre@utc.fr>,
Teun Burgers <burgers@ecn.nl>,
-Gerrit P. Haase <gp@familiehaase.de>.
+Gerrit P. Haase <gp@familiehaase.de>,
+Reini Urban <rurban@cpan.org>,
+Jan Dubois <jand@activestate.com>.
=head1 HISTORY
-Last updated: 2005-02-11
+Last updated: 2007-08-12
https://perl5.git.perl.org / perl5.git / blobdiff