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t/perlcyg.pod  view on Meta::CPAN

=item * F<.exe>

The Cygwin stat(), lstat() and readlink() functions make the F<.exe>
extension transparent by looking for F<foo.exe> when you ask for F<foo>
(unless a F<foo> also exists).  Cygwin does not require a F<.exe>
extension, but I<gcc> adds it automatically when building a program.
However, when accessing an executable as a normal file (e.g., I<cp>
in a makefile) the F<.exe> is not transparent.  The I<install> included
with Cygwin automatically appends a F<.exe> when necessary.

=item * chown()

On WinNT chown() can change a file's user and group IDs.  On Win9x chown()
is a no-op, although this is appropriate since there is no security model.

=item * Miscellaneous

File locking using the C<F_GETLK> command to fcntl() is a stub that
returns C<ENOSYS>.

Win9x can not rename() an open file (although WinNT can).

The Cygwin chroot() implementation has holes (it can not restrict file

t/perlcygo.txt  view on Meta::CPAN

Cygwin pathnames can be separated by forward (/) or backward (\) slashes. They may also begin with drive letters (C:) or Universal Naming Codes (//UNC). DOS device names (aux, con, prn, com*, lpt?, nul) are invalid as base filenames. However, they ca...
  : * ? " < > |
File names are case insensitive, but case preserving. A pathname that contains a backslash or drive letter is a Win32 pathname (and not subject to the translations applied to POSIX style pathnames).
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 open() is determined by the mode of the mount that underlies the file. Perl provides a binmod...
    sysopen(FOO, "bar", O_WRONLY|O_CREAT|O_TEXT)
lseek(), tell() and sysseek() only work with files opened in binary mode.
The text/binary issue is covered at length in the Cygwin documentation.
.exe
The Cygwin stat(), lstat() and readlink() functions make the .exe extension transparent by looking for foo.exe when you ask for foo (unless a foo also exists). Cygwin does not require a .exe extension, but gcc adds it automatically when building a pr...
chown()
On WinNT chown() can change a file's user and group IDs. On Win9x chown() is a no-op, although this is appropriate since there is no security model.
Miscellaneous
File locking using the F_GETLK command to fcntl() is a stub that returns ENOSYS.
Win9x can not rename() an open file (although WinNT can).
The Cygwin chroot() implementation has holes (it can not restrict file access by native Win32 programs).
INSTALL
This will install Perl, including man pages.
  make install | tee log.make-install
NOTE: If STDERR is redirected `make install' will not prompt you to install perl into /usr/bin.
You may need to be Administrator to run `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 found in the INSTALL document.