PNG_READ_INVERT_SUPPORTED 1699 extra_lib/include/png/png.h #if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED) PNG_READ_INVERT_SUPPORTED 3331 extra_lib/include/png/png.h #if defined(PNG_READ_INVERT_SUPPORTED) || defined(PNG_WRITE_INVERT_SUPPORTED)