PNG_WRITE_INTERLACING_SUPPORTED 1694 extra_lib/include/png/png.h     defined(PNG_WRITE_INTERLACING_SUPPORTED)
PNG_WRITE_INTERLACING_SUPPORTED 3246 extra_lib/include/png/png.h #if defined(PNG_WRITE_INTERLACING_SUPPORTED)
PNG_WRITE_INTERLACING_SUPPORTED  672 extra_lib/include/png/pngconf.h     !defined(PNG_WRITE_INTERLACING_SUPPORTED)