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diff --git a/src/liblzma/api/lzma/extra.h b/src/liblzma/api/lzma/extra.h
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-/**
- * \file lzma/extra.h
- * \brief Handling of Extra Records in Metadata
- *
- * \author Copyright (C) 1999-2006 Igor Pavlov
- * \author Copyright (C) 2007 Lasse Collin
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- */
-
-#ifndef LZMA_H_INTERNAL
-# error Never include this file directly. Use <lzma.h> instead.
-#endif
-
-
-/*
- * Extra Record IDs
- *
- * See the .lzma file format specification for description what each
- * Extra Record type exactly means.
- *
- * If you ever need to update .lzma files with Extra Records, note that
- * the Record IDs are divided in two categories:
- * - Safe-to-Copy Records may be preserved as is when the
- * Stream is modified in ways that don't change the actual
- * uncompressed data. Examples of such operatings include
- * recompressing and adding, modifying, or deleting unrelated
- * Extra Records.
- * - Unsafe-to-Copy Records should be removed (and possibly
- * recreated) when any kind of changes are made to the Stream.
- */
-
-#define LZMA_EXTRA_PADDING 0x00
-#define LZMA_EXTRA_OPENPGP 0x01
-#define LZMA_EXTRA_FILTERS 0x02
-#define LZMA_EXTRA_COMMENT 0x03
-#define LZMA_EXTRA_CHECKS 0x04
-#define LZMA_EXTRA_FILENAME 0x05
-#define LZMA_EXTRA_MTIME 0x07
-#define LZMA_EXTRA_MTIME_HR 0x09
-#define LZMA_EXTRA_MIME_TYPE 0x0B
-#define LZMA_EXTRA_HOMEPAGE 0x0D
-
-
-/**
- * \brief Extra Records
- *
- * The .lzma format provides a way to store custom information along
- * the actual compressed content. Information about these Records
- * are passed to and from liblzma via this linked list.
- */
-typedef struct lzma_extra_s lzma_extra;
-struct lzma_extra_s {
- /**
- * \brief Pointer to the next Extra Record
- *
- * This is NULL on the last Extra Record.
- */
- lzma_extra *next;
-
- /**
- * \brief Record ID
- *
- * Extra Record IDs are divided in three categories:
- * - Zero is a special case used for padding. It doesn't have
- * Size of Data fields.
- * - Odd IDs (1, 3, 5, ...) are Safe-to-Copy IDs.
- * These can be preserved as is if the Stream is
- * modified in a way that doesn't alter the actual
- * uncompressed content.
- * - Even IDs (2, 4, 6, ...) are Unsafe-to-Copy IDs.
- * If the .lzma Stream is modified in any way,
- * the Extra Records having a sensitive ID should
- * be removed or updated accordingly.
- *
- * Refer to the .lzma file format specification for
- * the up to date list of Extra Record IDs.
- */
- lzma_vli id;
-
- /**
- * \brief Size of the Record data
- *
- * In case of strings, this should not include the
- * trailing '\0'.
- */
- size_t size;
-
- /**
- * \brief Record data
- *
- * Record data is often a string in UTF-8 encoding,
- * but it can be arbitrary binary data. In case of
- * strings, the trailing '\0' is usually not stored
- * in the .lzma file.
- *
- * To ease working with Extra Records containing strings,
- * liblzma always adds '\0' to the end of data even when
- * it wasn't present in the .lzma file. This '\0' is not
- * counted in the size of the data.
- */
- uint8_t *data;
-};
-
-
-extern void lzma_extra_free(lzma_extra *extra, lzma_allocator *allocator);