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由 Glenn Randers-Pehrson 提交于
to PNG_HANDLE_AS_UNKNOWN to make it possible to build a libpng that can use the png_set_keep_unknown_chunks() mechanism to ignore unused chunks without having to save unknown chunks.
bbe589da
to PNG_HANDLE_AS_UNKNOWN to make it possible to build a libpng that can use the png_set_keep_unknown_chunks() mechanism to ignore unused chunks without having to save unknown chunks.