Updated: readline-6.1.2-3, libreadline7-6.1.2-3

Eric Blake (cygwin) eblake@redhat.com
Fri May 4 21:17:00 GMT 2012

A new release 6.1.2-3 for readline and libreadline7, is available for
download, replacing 6.1.2-2 as current.  6.0.3-2 remains as previous.

This is a minor rebuild, updating to take advantage of newer cygwin
features and dropping the dynamicbase flag from dlls now that
'rebaseall' is able to do a better job.  See also the upstream
documentation in /usr/share/doc/readline/.

Be aware that an issue with offering libreadline as both a static and
dynamic library has been identified - some functions, such as
rl_function_of_keyseq, cannot work correctly with both library styles
without some additional __declspec decoration in the dynamic case.  This
release caters to static compilation (and packages like bash that use
the problematic functions from dynamic readline have to add a minimal
workaround); it is possible that a future package will either be
dynamic-only, or that compiling against the static readline-6.0 will
require the declaration of a preprocessor macro, so that dynamic linking
works without requiring patches to every client.

The readline library will read a line from the terminal and return it,
allowing the user to edit the line with emacs or vi editing keys.  It
also allows a history feature, for editing previous entries, making
command line interfaces easier-to-use and more intuitive.

libreadline7 provides the .dlls needed for readline and history
expansion for dynamic linking in other programs, including bash and gdb;
it is required for a minimal cygwin installation.  The 7 in libreadline7
distinguishes incompatible API changes made to the prior libreadline5
and libreadline6 libraries still available on the mirrors. readline
provides the documentation and the static libraries required for static
linking; you should only need it if you plan on compiling an application
that links with -lreadline or -lhistory.

To update your installation, click on the "Install Cygwin now" link on
the http://cygwin.com/ web page.  This downloads setup.exe to your
system. Save it and run setup, answer the questions and pick up
'libreadline7' from the 'Base' category (it should already be selected),
or 'readline' in the 'Devel' category.  Since this is an experimental
release, you will need to use the 'Exp' radio button to get access to
this version.  Be sure that you do not have any cygwin programs running
during the upgrade.

Note that downloads from cygwin.com aren't allowed due to bandwidth
limitations.  This means that you will need to find a mirror which has
this update, please choose the one nearest to you:

If you want to make a point or ask a question the Cygwin mailing list is
the appropriate place.

Eric Blake
volunteer cygwin readline package maintainer

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