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# From http://sourceforge.net/projects/libpng/files/libpng16/1.6.23/ md5 9b320a05ed4db1f3f0865c8a951fd9aa libpng-1.6.23.tar.xz sha1 4857fb8dbd5ca7ddacc40c183e340b9ffa34a097 libpng-1.6.23.tar.xz
