John Bowler f5f1206778 [libpng16] Fixed undefined behavior in contrib/tools/pngfix.c and added new ...

strip option. pngfix relied on undefined behavior and even a simple change from
gcc to g++ caused it to fail.  The new strip option 'unsafe' has been
implemented and is the default if --max is given.  Option names have
been clarified, with --strip=transform now stripping the bKGD chunk,
which was stripped previously with --strip=unused.
Added all documented chunk types to pngpriv.h

2013-07-02 23:18:49 -05:00

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