PNG_USER_CHUNKS_SUPPORTED 1137 extra_lib/include/png/png.h #if defined(PNG_USER_CHUNKS_SUPPORTED)
PNG_USER_CHUNKS_SUPPORTED 1375 extra_lib/include/png/png.h #if defined(PNG_USER_CHUNKS_SUPPORTED)
PNG_USER_CHUNKS_SUPPORTED 2025 extra_lib/include/png/png.h #ifdef PNG_USER_CHUNKS_SUPPORTED