From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 32675 invoked by alias); 27 Jun 2009 22:03:54 -0000 Received: (qmail 14787 invoked by uid 22791); 27 Jun 2009 17:23:06 -0000 X-SWARE-Spam-Status: No, hits=-2.6 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_LOW,SARE_SUB_OBFU_Z,SPF_PASS,URIBL_RHS_DOB X-Spam-Check-By: sourceware.org From: Charles Wilson Date: Sat, 27 Jun 2009 22:03:00 -0000 Subject: [1.7] Updated: {xz/liblzma-devel/liblzma1}-4.999.8betaCYG4-10 To: cygwin-announce@cygwin.com Message-Id: <20090627172258.180C12895D@heartbeat1.messagingengine.com> Mailing-List: contact cygwin-announce-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-announce-owner@cygwin.com Reply-To: The Cygwin Mailing List Mail-Followup-To: cygwin-announce@cygwin.com X-SW-Source: 2009-06/txt/msg00043.txt.bz2 The xz package is the successor to lzma. Its command-line tools support both .lzma files and the new .xz format, and it ships with compatibility links so you don't even need to retrain your fingers: 'lzma', 'lzcat', etc, are all still present. However, you probably should: .xz files are already being used by some upstream source distribution sites, including GNU FSF, and the new format includes features (such as internal integrity checks) that the old .lzma format lacks. The xz package provides a new runtime library: liblzma supports encoding as well as decoding, both .lzma and .xz streams. The older liblzmadec library supported decoding .lzma streams only. Notes about stability: ====================== >From the package README: This is a beta version. The .xz file format is now stable though, which means that files created with the beta version will be uncompressible with all future XZ Utils versions too (assuming that there are no catastrophical bugs). liblzma API is pretty stable now, although minor tweaks may still be done if really needed. The ABI is not stable yet. The major soname will be bumped right before the first stable release. Probably it will be bumped to something like .so.5.0.0 because some distributions using the alpha versions already had to use other versions than .so.0.0.0. For cygwin, this means that the current DLL number "1" will be changed to "5" (or whatever major soname upstream decides on) when xz-5.0 is released. This gives us plenty of room (2-4) for other DLL number changes between now and that release for any issues that pop up (esp. related to the gcc4 switch?) The final 5.0 release is expected relatively soon. However, I wanted cygwin to begin supporting the new (now stable) .xz file format immediately -- and "relatively soon" sounds dangerously close to the (laughable and always wrong) "Real Soon Now". This is a routine update. [[ compiled using gcc-3.4.4-999 ]] This package differs from the simultaneously-released xz-4.999.8betaCYG4-1 package for cygwin-1.5 in only trivial ways: the README references cygport-0.9.7 and cygwin-1.7.0-50, and the /usr/share/doc/ layout is influenced by the cygport changes between 0.4.x and 0.9.x. CHANGES (since xz-4.999beta8_20090605-1) ======================== o Some of the cygwin-specific patches were merged upstream, in heavily modified form. By updating to latest master and rebasing the cygwin changes, we remain more in sync with ongoing progress upstream. o DLL now only exports the symbols that are part of the public API, rather than --export-all. Technically, this is an ABI change, but I left the DLL number at 1, rather than bumping it again within a week. No-one should have been using the private symbols anyway. o Now also includes windows resources in the DLL and executables. o Upstream now better supports building a mingw version using the autotool-driven build process. o Other internal changes. Earlier changes ======================== o However, there has been an ABI change so the DLL number needs to be bumped (from 0 to 1). liblzma0 remains, but is now obsolete. -- Charles Wilson volunteer xz 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 answer all of the questions. *** CYGWIN-ANNOUNCE UNSUBSCRIBE INFO *** If you want to unsubscribe from the cygwin-announce mailing list, look at the "List-Unsubscribe: " tag in the email header of this message. Send email to the address specified there. It will be in the format: cygwin-announce-unsubscribe-you=yourdomain.com@cygwin.com If you need more information on unsubscribing, start reading here: http://sourceware.org/lists.html#unsubscribe-simple Please read *all* of the information on unsubscribing that is available starting at this URL.