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[ANNOUNCEMENT] Updated: mingw-{zlib,zlib-devel}-1.2.5-6; NEW: mingw-zlib1-1.2.5-6

The mingw-zlib package has been updated to version 1.2.5-6. zlib is a
standard lossless compression library; mingw-zlib is a version built
using the standard windows runtime library and NOT cygwin; it is used by
setup.exe among other tools. 

[[ compiled using mingw-gcc-4.5.2 ]]

!!!! WARNING !!!!
IF you are attempting to update an existing cygwin installation, which
has the gcc-mingw 'add-on' packages installed (*), then you MUST
upgrade the gcc-mingw packages to version 20050522-3 or newer, before
installing this upgrade.  Do NOT attempt to upgrade BOTH gcc-mingw and
this package during the same setup.exe event. The reason for this
restriction is fairly complex, and is detailed here:

If you are reading this announcement AFTER having messed up your cygwin
installation, because you didn't follow these instructions or didn't
know about them, then see the section in this message
that begins with "HELP!!!" and follow the suggestions there to "fix" it.

(*) gcc-mingw packages are "add-ons" to the gcc-3 compiler suite, and
    provide the necessary files for the -mno-cygwin mode of that

*** NOTE 1 ***
If you have installed the "missing" mingw cross compiler packages from
then you need take no special action.  This package will simply upgrade
the one.

*** NOTE 2 ***
After upgrading all of the various mingw-packages (that is,
mingw-{runtime,zlib,bzip2,xz,gpg-error,gcrypt} etc.), the following
directories may be empty:
This is expected.  Those 'gcc-3 -mno-cygwin' users who wish to continue
rather than switching to the new MinGW cross compiler, may find it
necessary to add -I/usr/i686-pc-mingw32/sys-root/mingw/include when
compiling and -L/usr/i686-pc-mingw32/sys-root/mingw/lib when linking.
However, another workaround for gcc-3 users is to remove the now empty
/usr/{include,lib}/mingw directories and replace them with symbolic
  rmdir /usr/include/mingw
  ln -fs /usr/i686-pc-mingw32/sys-root/mingw/include /usr/include/mingw
  rmdir /usr/lib/mingw
  ln -fs /usr/i686-pc-mingw32/sys-root/mingw/lib /usr/lib/mingw

CHANGES since 1.2.3-10
o Update to latest upstream release.
o Recompiled by, and repackaged for use with, the i686-pc-mingw32
  cross compiler.
o Changed the name of the DLL from mgwz.dll to libz-1.dll, for
  compatibility with distribution.
o Internal: Reduce divergence from upstream; use --sharedlibdir rather
  than custom --bindir.

Charles Wilson
volunteer mingw-zlib maintainer for cygwin


To update your installation, click on the "Install Cygwin now" link
on the web page.  This downloads setup.exe to
your system.  Then, run setup and answer all of the questions.


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