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This is Gerben Wierda's binary distribution of libpng for Mac OS X. Libpng is a library with operation to manipulate the PNG Portable Network Graphics format. This library is used by many other applications.

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libpng i-Package release notes

2008/05/30:
• All i-Packages updated to require at least i-Installer 2.89
2008/05/29:
• Version 1.2.29
2006/10/29:
• i-Packages running the remove phase as part of the prepare phase need the remove script as dependency for the prepare script in the TOC
2006/10/11:
• Requires i-Installer 2.83 as we want to force people to update to that version as earlier versions contain a potentially harmful bug.
2006/09/23:
• Requires i-Installer 2.79 as we want to force people to update to that version as earlier versions contain a potentially harmful bug.
• Version 1.2.12
• You can keep the shared libraries when you set II2DYLIBS to Keep in the Envrironment table in i-Installer Preferences
2006/04/06:
• Completely removed the dynamic libraries. I have had one serious report about Apple software like Finder and Safari going haywire in Mac OS X 10.4.6 when there are standard open source libpng dylibs available in /usr/local/lib. The error turned out to be the result of the user fiddling with environment.plist, but I decided to remove the dylibs anyway.
2006/02/06:
• Added conditional removal of dylibs. When II2DYLIBS is set to Remove in i-Installer preferences, the dylibs are removed during configuration. This is mainly for me to prevent too many i-Package dependencies. 
2006/01/24:
• First fat (i386 + ppc) release
2006/01/12:
• Rebuilt as ppc-only but with dynamic libraries
2005/08/20:
• Rebuilt as universal binaries
2005/01/28:
• Version 1.2.8
2004/01/29:
• Version 1.2.8beta4
2004/01/29:
• Rebuilt and released to all repositories
• Version 1.2.5
2004/01/20:
• Rebuilt by i-installer 2.41.0. This package still needs i-Installer 2.27.0 or later to install.
2004/01/14:
• This package needs i-Installer 2.27.0 or later to install.
2003/03/18:
• The archive has been recreated to prevent as much as possible the directory ownership problem that still exists with i-Installer due to gnutar behaviour.
2003/03/13:
• This package needs i-Installer 2.12.0 or later to install.
2002/05/15:
	• First i-Installer release. 1.0.10
2002/09/24:
• First i-Installer v2 release