John Bowler b0076faf1f Backward compatibility with 1.6
1.6 did not define PNG_READ_PNG_SUPPORTED, ever; it doesn't matter there.

Signed-off-by: John Bowler <jbowler@acm.org>
2015-11-23 18:14:57 -08:00
..
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This "contrib" directory contains contributions which are not necessarily under
the libpng license, although all are open source.  They are not part of
libpng proper and are not used for building the library, although some are used
for testing the library via "make check".