Tue Dec 31 07:35:00 GMT 2002
The zlib package has been updated to version 1.1.3-7. zlib is a
standard lossless compression library. This release is now built
using the new auto-import features of binutils, and eliminates
the need for the -DZLIB_STATIC flag when linking statically.
- internal reorg to support scripted compilation
- uses auto-import so that -DZLIB_STATIC and -DALL_STATIC are no longer
zlib volunteer maintainer for cygwin
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. Then, run setup and update the zlib package.
Note that we have recently stopped downloads from sources.redhat.com
(aka cygwin.com) due to bandwidth limitations. This means that you
will need to find a mirror which has this update.
In the US,
is a reliable high bandwidth connection.
In the UK,
is usually up-to-date within 48 hours.
If one of the above doesn't have the latest version of this package
then you can either wait for the site to be updated or find another
If you have questions or comments, please send them to the Cygwin
mailing list at: firstname.lastname@example.org . I would appreciate if you would
use this mailing list rather than emailing me directly. This includes
ideas and comments about the setup utility or Cygwin in general.
If you want to make a point or ask a question, the Cygwin mailing list
is the appropriate place.
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o Now uses the auto-import functionality of newer binutils, and doesn't
use __declspec(dllimport). This means you no longer need -DZLIB_STATIC
when compiling objects intended for static linking. Just compile as
normal. HOWEVER, you need to use a special flag when linking statically:
'gcc -static'. For dynamic linking, you need no special link-time flags
(assuming you're using binutils newer than 20010930, when
--enable-auto-import was made the default).
-- PRO: no compile time flags needed when building
client programs; ONLY need a link-time flag
linking to static libraries. NO special flags
at compile-time nor link-time when linking to
-- CON: (partial): if using binutils older than 20010930,
you now need a special linktime flag for dynamic
linking (-Wl,--enable-auto-import). However,
with an up-to-date binutils, you don't need this.
o The following packages have been converted from old style
"-DFOO_STATIC" to the new autoimport style of DLL structure:
ncurses readline gettext zlib libpng xpm-nox
The following have not (yet) and still need -DFOO_STATIC for
jpeg tiff bzip2 jbig gdbm
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