History 1.1.0: 2015-01-12 * Compatible with libpng 1.2.x and newer (tested with 1.2.50, 1.4.12, 1.5.17 and 1.6.3) * Fix locating X color database on Mac OS X * Fix sCAL handling (converting sng to png incorrectly swapped width and height) * Fix several bugs in base64 handling, and clarify that it differs from RFC2045 * Fix dumping and validation of sRGB intent value. * Fix handling of iTXt when 'translated' contained non-latin-1 data (it can contain arbitrary UTF-8 data) * Fix support for long text blocks * Fix validation of iTXt blocks * Fix failure when multiple sng files where given on command line. 1.0.6: 2014-06-04 * Forward-ported to libpng 1.4. * Width and height fields were reversed in sCAL chunk. 1.0.5: 2010-11-22 * Finds newer locations of the rgb.txt file. * Adapted for altered extension handling in recent libpng versions. 1.0.4: 2005-06-21 * Minor bug fix to canonicalization code, by Antoine Mathys . 1.0.3: 2003-12-29 * RPM packaging fixes. 1.0.2: 2002-09-18 * Changed the signature function for libpng in Configure.in. * Fix for handling of private and gifx chunks. 1.0.1: 2002-07-30 * Lift documentation to XML-DocBook 1.0.0: 2001-07-07 * gcc -Wall cleanup for production release. * John Zaitseff's patch to fix bugs with decompilation of 8-bit chars. 0.9.4: 2001-02-28 * Fixed an off-by-one allocation error that caused occasional SEGVs. Thanks to Eduardo Santiago for reporting the bug and sending a patch. 0.9.3: 2000-12-28 * Forward port to 1.0.8/1.0.9. * Added -V option. 0.9.2: 2000-02-06 * Forward port to use 1.1.0 API if it's available. 0.9.1: 2000-01-10 * IMAGE chunk syntax changed; added write transformations. 0.9.0: 1999-12-28 * Public alpha release. See TODO for known problems. * Configuration now handled with automake/autoconf. * Syntax cleanup. String-pasting now supported. 0.2: 1999-12-23 * autoconf build * Fixes for obsciure chunks 0.1: 1999-12-22 * Pre-alpha private release; passes the regression test.