Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Date: Sun, 20 Jan 2002 22:42:29 -0500 Message-Id: <200201210342.g0L3gTX09783@cgf.cipe.redhat.com> From: Charles Wilson To: cygwin AT cygwin DOT com Subject: [ANNOUNCEMENT] Updated: libpng-1.0.12-1 Reply-To: cygwin AT cygwin DOT com The libpng package has been updated to version 1.0.12-1. libpng is a library that provides routines to access and manipulate Portable Network Graphics (PNG) images. PNG is a lossless, patent- unencumbered image format intended to replace GIF. Since the png-developers group released version 1.0.12 and our previous cygwin version was based on 1.0.11, I updated our package. Also, since CHANGES: - internal reorg to support scripted compilation - split out the DLL into a separate package, in preparation for the new libpng-2.x package. - uses auto-import so that -DPNG_STATIC and -DALL_STATIC are no longer needed. -- Charles Wilson libpng volunteer maintainer for cygwin INSTALLATION: 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 libpng package -- and also install the new libpng2 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, ftp://mirrors.rcn.net/mirrors/sources.redhat.com/cygwin/ is a reliable high bandwidth connection. In the UK, http://programming.ccp14.ac.uk/ftp-mirror/programming/cygwin/pub/cygwin/ 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 mirror. If you have questions or comments, please send them to the Cygwin mailing list at: cygwin AT cygwin DOT com . 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. *** 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 DOT com AT cygwin DOT com NOTES: o Now uses the auto-import functionality of newer binutils, and doesn' t use __declspec(dllimport). This means you no longer need -DPNG_STATIC when compiling objects intended for static linking. Just compile as normal. HOWEVER, you need to use a special flags 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 dynamic links. -- 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 static builds: jpeg tiff bzip2 jbig gdbm -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/