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diff --git a/src/liblzma/api/lzma/simple.h b/src/liblzma/api/lzma/simple.h
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+/**
+ * \file        lzma/simple.h
+ * \brief       So called "simple" filters
+ *
+ * \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
+
+
+/* Filter IDs for lzma_options_filter.id */
+
+#define LZMA_FILTER_X86         LZMA_VLI_C(0x04)
+	/**<
+	 * BCJ (Branch, Call, Jump) filter for x86 binaries
+	 */
+
+#define LZMA_FILTER_POWERPC     LZMA_VLI_C(0x05)
+	/**<
+	 * Filter for Big endian PowerPC binaries
+	 */
+
+#define LZMA_FILTER_IA64        LZMA_VLI_C(0x06)
+	/**<
+	 * Filter for IA64 (Itanium) binaries.
+	 */
+
+#define LZMA_FILTER_ARM         LZMA_VLI_C(0x07)
+	/**<
+	 * Filter for ARM binaries.
+	 */
+
+#define LZMA_FILTER_ARMTHUMB    LZMA_VLI_C(0x08)
+	/**<
+	 * Filter for ARMThumb binaries.
+	 */
+
+#define LZMA_FILTER_SPARC       LZMA_VLI_C(0x09)
+	/**<
+	 * Filter for SPARC binaries.
+	 */
+
+
+/**
+ * \brief       Options for so called "simple" filters
+ *
+ * The simple filters never change the size of the data. Specifying options
+ * for them is optional: if pointer to options is NULL, default values are
+ * used. You probably never need to specify these options, so just set the
+ * options pointer to NULL and be happy.
+ *
+ * If options with non-default values have been specified when encoding,
+ * the same options must also be specified when decoding.
+ */
+typedef struct {
+	/**
+	 * \brief       Start offset for branch conversions
+	 *
+	 * This setting is useful only when the same filter is used
+	 * _separately_ for multiple sections of the same executable file,
+	 * and the sections contain cross-section branch/call/jump
+	 * instructions. In that case it is benefical to set the start
+	 * offset of the non-first sections so that the relative addresses
+	 * of the cross-section branch/call/jump instructions will use the
+	 * same absolute addresses as in the first section.
+	 *
+	 * When the pointer to options is NULL, the default value is used.
+	 * The default value is zero.
+	 */
+	uint32_t start_offset;
+
+} lzma_options_simple;