PNG_WRITE_SUPPORTED 1519 extra_lib/include/png/png.h #ifdef PNG_WRITE_SUPPORTED PNG_WRITE_SUPPORTED 1524 extra_lib/include/png/png.h #ifdef PNG_WRITE_SUPPORTED PNG_WRITE_SUPPORTED 631 extra_lib/include/png/pngconf.h #if defined(PNG_WRITE_SUPPORTED) PNG_WRITE_SUPPORTED 843 extra_lib/include/png/pngconf.h #if defined(PNG_WRITE_SUPPORTED) && \