Replace lzma with xz. Tweaks to fix debug builds.

44 files changed, 3739 insertions, 7261 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index de8ca8b5..bb813a09 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -47,13 +47,15 @@ include_directories(${Qt5Widgets_INCLUDE_DIRS})
 add_subdirectory(depends/quazip)
 include_directories(depends/quazip)
 
-# Add lzma
-#add_subdirectory(depends/lzma)
-#include_directories(depends/lzma/include)
-
 # Add the java launcher
 add_subdirectory(depends/launcher)
 
+# Add xz decompression
+add_subdirectory(depends/xz-embedded)
+
+# Add pack200 decompression
+add_subdirectory(depends/pack200)
+
 ######## MultiMC Libs ########
 
 # Add the util library.
@@ -68,9 +70,6 @@ include_directories(${LIBSETTINGS_INCLUDE_DIR})
 add_subdirectory(depends/groupview)
 include_directories(${LIBGROUPVIEW_INCLUDE_DIR})
 
-#pack 200
-#add_subdirectory(depends/pack200)
-
 ################################ SET UP BUILD OPTIONS ################################
 
 ######## Check endianness ########
@@ -355,9 +354,8 @@ ADD_EXECUTABLE(MultiMC MACOSX_BUNDLE WIN32
 
 # Link
 QT5_USE_MODULES(MultiMC Widgets Network Xml)
-TARGET_LINK_LIBRARIES(MultiMC quazip lzma libUtil libSettings libGroupView 
-${MultiMC_LINK_ADDITIONAL_LIBS})
-#ADD_DEPENDENCIES(MultiMC MultiMCLauncher libUtil libSettings libGroupView)
+TARGET_LINK_LIBRARIES(MultiMC quazip libUtil libSettings libGroupView ${MultiMC_LINK_ADDITIONAL_LIBS})
+ADD_DEPENDENCIES(MultiMC MultiMCLauncher)
 
 
 option(BUILD_KEYRING_TEST "Build the simple keyring test binary" OFF)
diff --git a/depends/lzma/CMakeLists.txt b/depends/lzma/CMakeLists.txt
deleted file mode 100644
index 4df2b762..00000000
--- a/depends/lzma/CMakeLists.txt
+++ /dev/null
@@ -1,54 +0,0 @@
-CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
-
-PROJECT(lzma)
-
-IF (WIN32)
-  ADD_DEFINITIONS(-DWIN32)
-ENDIF (WIN32)
-
-SET(SRCS
-# original code by Igor Pavlov
-# Lzma version 4.63
-# Minified ~_~
-pavlov/7zCrc.c
-pavlov/7zCrc.h
-pavlov/LzFind.c
-pavlov/LzFind.h
-pavlov/LzHash.h
-pavlov/LzmaDec.c
-pavlov/LzmaDec.h
-pavlov/LzmaEnc.c
-pavlov/LzmaEnc.h
-pavlov/LzmaLib.c
-pavlov/LzmaLib.h
-pavlov/Types.h
-
-# Public headers
-include/common.h
-include/compress.h
-include/decompress.h
-include/simple.h
-
-# Wrapper by Lloyd Hilaiel (lloyd@hilaiel.com)
-wrapper/common_internal.c
-wrapper/common_internal.h
-wrapper/compress.c
-wrapper/decompress.c
-wrapper/simple.c
-wrapper/lzip_header.c
-wrapper/lzip_header.h
-wrapper/lzma_header.c
-wrapper/lzma_header.h
-)
-
-# an include directory to allow easylzma implementation to find public
-# headers
-INCLUDE_DIRECTORIES(include)
-ADD_LIBRARY(lzma STATIC ${SRCS})
-
-# lzma compress/decompress tool
-ADD_EXECUTABLE(elzma elzma.c)
-TARGET_LINK_LIBRARIES(elzma lzma)
-# a simple test...
-ADD_EXECUTABLE(easylzma_test easylzma_test.c)
-TARGET_LINK_LIBRARIES(easylzma_test lzma)
diff --git a/depends/lzma/LICENSE.txt b/depends/lzma/LICENSE.txt
deleted file mode 100644
index a8a34e6a..00000000
--- a/depends/lzma/LICENSE.txt
+++ /dev/null
@@ -1,9 +0,0 @@
-# Written in 2009 by Lloyd Hilaiel
-# Butchered in 2013 by Petr Mrazek
-#
-# License
-# 
-# All the cruft you find here is public domain.  You don't have to credit
-# anyone to use this code, but my personal request is that you mention
-# Igor Pavlov for his hard, high quality work.
-# 
diff --git a/depends/lzma/easylzma_test.c b/depends/lzma/easylzma_test.c
deleted file mode 100644
index 69858728..00000000
--- a/depends/lzma/easylzma_test.c
+++ /dev/null
@@ -1,282 +0,0 @@
-/*
- * Written in 2009 by Lloyd Hilaiel
- *
- * License
- *
- * All the cruft you find here is public domain.  You don't have to credit
- * anyone to use this code, but my personal request is that you mention
- * Igor Pavlov for his hard, high quality work.
- *
- * Various compiled-in tests for the easylzma library which excercise
- * API correctness and handling of corrupt data.
- */
-
-#include "simple.h"
-
-#include <stdio.h>
-#include <string.h>
-
-static const char *sampleData =
-	"Overview\n"
-	"\n"
-	"Easylzma is a C library and command line tools for LZMA compression and \n"
-	"decompression.  It uses a Igor Pavlov's reference implementation and SDK\n"
-	"written in C.\n"
-	"\n"
-	"License\n"
-	"\n"
-	"All the cruft you find here is public domain.  You don't have to credit\n"
-	"anyone to use this code, but my personal request is that you mention\n"
-	"Igor Pavlov for his hard, high quality work.\n"
-	"\n"
-	"Project Goals\n"
-	"\n"
-	"1. A tiny C wrapper and portable build system around a subset of\n"
-	"   Igor Pavlov's public domain LZMA compression and decompression\n"
-	"   implementation.\n"
-	"2. A tiny and straighforward API\n"
-	"3. Support for multiple different prominent LZMA file formats (see section on\n"
-	"   file formats below)\n"
-	"4. easy to build and use everywhere (doze and nix alike)\n"
-	"5. public domain licensing through and through.  (hats off to Igor)\n"
-	"\n"
-	"Current State:\n"
-	"\n"
-	"THIS IS A WORK IN PROGRESS.  The code here should be considered pre-alpha,\n"
-	"and this should only be used by tinkerers or hackers at this point.  Once\n"
-	"feature completion is attained this message will be updated.  See the\n"
-	"TODO file distributed with the source for remaining work to be done.\n"
-	"\n"
-	"Platforms Supported\n"
-	"\n"
-	"0.0.2 has been successfully compiled and run basic round trip testing\n"
-	"on the following platforms & compilers:\n"
-	"\n"
-	"  * win32 - visual studio 2005\n"
-	"  * osx - 10.4 & 10.5 (intel)\n"
-	"  * netbsd ppc - 4.0.1 with gcc 4.1.2\n"
-	"    (NOTE: memory allocation errors when dict size is default)\n"
-	"  * freebsd 6.1 - amd64 gcc 3.4.4\n"
-	"\n"
-	"Features\n"
-	"\n"
-	"XXX: write me (and the code)\n"
-	"\n"
-	"Usage\n"
-	"\n"
-	"XXX: write me (and the code)\n"
-	"\n"
-	"The Saga of LZMA File Formats, and a couple cents.\n"
-	"\n"
-	"As far as I can tell, there are at least four different ways to put LZMA\n"
-	"compressed data in a stream:\n"
-	"\n"
-	"1. The LZMA-Alone format, which consists of a 13 byte header including\n"
-	"   compression properties, dictionary size, and the uncompressed size of\n"
-	"   the file, followed by compressed data.  This format has some support\n"
-	"   in Igor Pavlov's reference implementation and is in widespread use, as\n"
-	"   it's supported by lzmautils: http://tukaani.org/lzma/\n"
-	"\n"
-	"   The canonical (afaict) implementation of this format (lzmautis) is\n"
-	"   BSD licensed.\n"
-	"\n"
-	"2. The lzip format (http://www.nongnu.org/lzip/lzip.html) - which\n"
-	"   includes a CRC footer and leading \"magic number\".  The former\n"
-	"   affords data integrity gaurantees, while the latter simplifies\n"
-	"   heuristic determination of file format.  This format looks to have\n"
-	"   reasonably widespread usage, though not quite as significant as\n"
-	"   LZMA-Alone.\n"
-	"\n"
-	"   The only implementation of this format I can find (lzip) is GPL licensed.\n"
-	"\n"
-	"3. the xz format ( http://tukaani.org/xz/xz-file-format.txt ) which is\n"
-	"   a more complex representation that includes CRC support and a magic\n"
-	"   number.  This format is to be supported by the next iteration of\n"
-	"   XZ Utils which is currently in beta.  The source may be obtained\n"
-	"   here: git://ctrl.tukaani.org/xz.git\n"
-	"\n"
-	"   This format will address some criticisms to the LZMA-Alone format and\n"
-	"   was developed collaboratively by Lasse Collin (the current maintainer\n"
-	"   of XZ utils) and Igor Pavlov (the author of 7zip and the refrence\n"
-	"   implementation of LZMA).\n"
-	"\n"
-	"   The xz format will employ LZMA2 which consists of extensions on top\n"
-	"   of LZMA, in the xz utils maintainer's words:\n"
-	"\n"
-	"   \"The primary compression algorithm in .xz is currently LZMA2, which\n"
-	"    is an extension on top of the orignal LZMA to fix a few practical\n"
-	"    issues, like adding support for flushing the encoder (equivalent\n"
-	"    to zlib's Z_SYNC_FLUSH), which isn't possible with the original\n"
-	"    LZMA.\"\n"
-	"\n"
-	"   Again, maintainers words, regarding licensing:\n"
-	"\n"
-	"   \"XZ Utils currently contains a zlib-like compression library and a \n"
-	"    gzip-like command line tool. It's currently under LGPLv2.1+ but I will \n"
-	"    put it into the public domain before the first stable release.\"\n"
-	"\n"
-	"4. The 7zip disk format which can contain multiple files possibly stored in\n"
-	"   LZMA compressed format.\n"
-	"\n"
-	"Given the state of things, the goal of this project is to develop something\n"
-	"based on the existing formats, and quickly leverage code generated by the XZ\n"
-	"Utils project, or simply kill this thing if that project produces something\n"
-	"that's easy to embed and has a clean API at a similar level of abstraction\n"
-	"as easylzma.\n"
-	"\n"
-	"lloyd - sometime in oh nine.\n";
-
-/* a test that we can round trip compress/decompress data using LZMA or LZIP
- * formats */
-static int roundTripTest(elzma_file_format format)
-{
-	int rc;
-	unsigned char *compressed;
-	unsigned char *decompressed;
-	size_t sz;
-
-	rc = simpleCompress(format, (unsigned char *)sampleData, strlen(sampleData), &compressed,
-						&sz);
-
-	if (rc != ELZMA_E_OK)
-		return rc;
-
-	/* gross assurance that compression is actually compressing */
-	if (sz > strlen(sampleData))
-	{
-		free(compressed);
-		return 1;
-	}
-
-	rc = simpleDecompress(format, compressed, sz, &decompressed, &sz);
-
-	free(compressed);
-
-	if (rc != ELZMA_E_OK)
-		return rc;
-
-	if (sz != strlen(sampleData) || 0 != memcmp(decompressed, sampleData, sz))
-	{
-		free(decompressed);
-		return 1;
-	}
-
-	return ELZMA_E_OK;
-}
-
-/* "correct" lzip generated from the lzip program */
-/*|LZIP...3.?..????|*/
-/*|....?e2~........|*/
-static unsigned char correctLzip[] = {
-	0x4c, 0x5a, 0x49, 0x50, 0x01, 0x0c, 0x00, 0x33, 0x1b, 0xec, 0x15, 0x07, 0xff, 0xff,
-	0xff, 0xff, 0x80, 0x00, 0x00, 0x00, 0xa8, 0x65, 0x32, 0x7e, 0x04, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
-
-/* "correct" lzip generated from lzma utils */
-static unsigned char correctLzma[] = {0x5d, 0x00, 0x00, 0x80, 0x00, 0x04, 0x00,
-									  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-									  0x33, 0x1b, 0xec, 0x14, 0x00, 0x00, 0x00};
-
-/* lzip with a bad CRC */
-static unsigned char corruptCRC[] = {
-	0x4c, 0x5a, 0x49, 0x50, 0x01, 0x0c, 0x00, 0x33, 0x1b, 0xec, 0x15, 0x07, 0xff, 0xff,
-	0xff, 0xff, 0x80, 0x00, 0x00, 0x00, 0xa8, 0x65, 0x31, 0x7e, 0x04, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
-
-/* lzip with a bad uncompressed size */
-static unsigned char corruptSize[] = {
-	0x4c, 0x5a, 0x49, 0x50, 0x01, 0x0c, 0x00, 0x33, 0x1b, 0xec, 0x15, 0x07, 0xff, 0xff,
-	0xff, 0xff, 0x80, 0x00, 0x00, 0x00, 0xa8, 0x65, 0x32, 0x7e, 0x04, 0x01, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
-
-/* lzma with a bad uncompressed size */
-static unsigned char corruptSizeLzma[] = {0x5d, 0x00, 0x00, 0x80, 0x00, 0x04, 0x01,
-										  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-										  0x33, 0x1b, 0xec, 0x14, 0x00, 0x00, 0x00};
-
-/* lzma with a bad uncompressed size */
-static unsigned char corruptSizeLzma2[] = {0x5d, 0x00, 0x00, 0x80, 0x00, 0x03, 0x00,
-										   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-										   0x33, 0x1b, 0xec, 0x14, 0x00, 0x00, 0x00};
-
-/* tests */
-static struct
-{
-	const char *testName; /* the name of the test */
-	int expectedCode;	 /* the expected output of the test */
-	elzma_file_format format;
-	unsigned char *data; /* input data */
-	unsigned int dataSize;
-} tests[] = {
-	  {"correct lzip", ELZMA_E_OK, ELZMA_lzip, correctLzip, sizeof(correctLzip)},
-	  {"lzip as lzma", ELZMA_E_DECOMPRESS_ERROR, ELZMA_lzma, correctLzip, sizeof(correctLzip)},
-	  {"correct lzma", ELZMA_E_OK, ELZMA_lzma, correctLzma, sizeof(correctLzma)},
-	  {"lzma as lzip", ELZMA_E_CORRUPT_HEADER, ELZMA_lzip, correctLzma, sizeof(correctLzma)},
-	  {"corrupt crc", ELZMA_E_CRC32_MISMATCH, ELZMA_lzip, corruptCRC, sizeof(corruptCRC)},
-	  {"bad lzip size", ELZMA_E_SIZE_MISMATCH, ELZMA_lzip, corruptSize, sizeof(corruptSize)},
-	  {"bad lzma size", ELZMA_E_INSUFFICIENT_INPUT, ELZMA_lzma,
-	   corruptSizeLzma, sizeof(corruptSizeLzma)},
-	  {"bad lzma size 2", ELZMA_E_SIZE_MISMATCH,   ELZMA_lzma,
-	   corruptSizeLzma2,  sizeof(corruptSizeLzma2)}};
-
-int main(void)
-{
-	unsigned int i;
-	unsigned int testsPassed = 0;
-	unsigned int testsRun = 0;
-
-	int rc = 0;
-
-	printf("round trip lzma test:    ");
-	fflush(stdout);
-	testsRun++;
-	if (ELZMA_E_OK != (rc = roundTripTest(ELZMA_lzma)))
-	{
-		printf("fail! (%d)\n", rc);
-	}
-	else
-	{
-		testsPassed++;
-		printf("ok\n");
-	}
-
-	printf("round trip lzip test:    ");
-	fflush(stdout);
-	testsRun++;
-	if (ELZMA_E_OK != (rc = roundTripTest(ELZMA_lzip)))
-	{
-		printf("fail (%d)!\n", rc);
-	}
-	else
-	{
-		testsPassed++;
-		printf("ok\n");
-	}
-
-	/* now run through the tests table */
-	for (i = 0; i < sizeof(tests) / sizeof(tests[0]); i++)
-	{
-		unsigned char *decompressed = NULL;
-		size_t sz = 0;
-
-		printf("%s test:    ", tests[i].testName);
-		rc = simpleDecompress(tests[i].format, tests[i].data, tests[i].dataSize, &decompressed,
-							  &sz);
-
-		testsRun++;
-		if (rc != tests[i].expectedCode)
-		{
-			printf("fail - got %d - expected %d\n", rc, tests[i].expectedCode);
-		}
-		else
-		{
-			testsPassed++;
-			printf("ok\n");
-			free(decompressed);
-		}
-	}
-
-	printf("\n%d/%d tests passed\n", testsPassed, testsRun);
-
-	return (testsPassed == testsRun) ? 0 : 1;
-}
diff --git a/depends/lzma/elzma.c b/depends/lzma/elzma.c
deleted file mode 100644
index f715a7b2..00000000
--- a/depends/lzma/elzma.c
+++ /dev/null
@@ -1,557 +0,0 @@
-/*
- * Written in 2009 by Lloyd Hilaiel
- *
- * License
- *
- * All the cruft you find here is public domain.  You don't have to credit
- * anyone to use this code, but my personal request is that you mention
- * Igor Pavlov for his hard, high quality work.
- *
- * command line elzma tool for lzma compression
- *
- * At time of writing, the primary purpose of this tool is to test the
- * easylzma library.
- *
- * TODO:
- *  - stdin/stdout support
- *  - multiple file support
- *  - much more
- */
-
-#include "include/compress.h"
-#include "include/decompress.h"
-
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
-
-#ifdef WIN32
-#include <stdio.h>
-#define unlink _unlink
-#else
-#include <unistd.h>
-#endif
-
-int deleteFile(const char *path)
-{
-	return unlink(path);
-}
-
-/* a utility to open a pair of files */
-/* XXX: respect overwrite flag */
-static int openFiles(const char *ifname, FILE **inFile, const char *ofname, FILE **outFile,
-					 int overwrite)
-{
-	*inFile = fopen(ifname, "rb");
-	if (*inFile == NULL)
-	{
-		fprintf(stderr, "couldn't open '%s' for reading\n", ifname);
-		return 1;
-	}
-
-	*outFile = fopen(ofname, "wb");
-	if (*outFile == NULL)
-	{
-		fprintf(stderr, "couldn't open '%s' for writing\n", ofname);
-		return 1;
-	}
-
-	return 0;
-}
-
-#define ELZMA_COMPRESS_USAGE                                                                   \
-	"Compress files using the LZMA algorithm (in place by default).\n"                         \
-	"\n"                                                                                       \
-	"Usage: elzma [options] [file]\n"                                                          \
-	"  -1 .. -9          compression level, -1 is fast, -9 is best (default 5)\n"              \
-	"  -f, --force       overwrite output files if they exist\n"                               \
-	"  -h, --help        output this message and exit\n"                                       \
-	"  -k, --keep        don't delete input files\n"                                           \
-	"  --lzip            compress to lzip disk format (.lz extension)\n"                       \
-	"  --lzma            compress to LZMA-Alone disk format (.lzma extension)\n"               \
-	"  -v, --verbose     output verbose status information while compressing\n"                \
-	"  -z, --compress    compress files (default when invoking elzma program)\n"               \
-	"  -d, --decompress  decompress files (default when invoking unelzma program)\n"           \
-	"\n"                                                                                       \
-	"Advanced Options:\n"                                                                      \
-	"  -s --set-max-dict (advanced) specify maximum dictionary size in bytes\n"
-
-/* parse arguments populating output parameters, return nonzero on failure */
-static int parseCompressArgs(int argc, char **argv, unsigned char *level, char **fname,
-							 unsigned int *maxDictSize, unsigned int *verbose,
-							 unsigned int *keep, unsigned int *overwrite,
-							 elzma_file_format *format)
-{
-	int i;
-
-	if (argc < 2)
-		return 1;
-
-	for (i = 1; i < argc; i++)
-	{
-		if (argv[i][0] == '-')
-		{
-			char *val = NULL;
-			char *arg = &(argv[i][1]);
-			if (arg[0] == '-')
-				arg++;
-
-			/* now see what argument this is */
-			if (!strcmp(arg, "h") || !strcmp(arg, "help"))
-			{
-				return 1;
-			}
-			else if (!strcmp(arg, "s") || !strcmp(arg, "set-max-dict"))
-			{
-				unsigned int j = 0;
-				val = argv[++i];
-
-				/* validate argument is numeric */
-				for (j = 0; j < strlen(val); j++)
-				{
-					if (val[j] < '0' || val[j] > '9')
-						return 1;
-				}
-
-				*maxDictSize = strtoul(val, (char **)NULL, 10);
-
-				/* don't allow dictionary sizes less than 8k */
-				if (*maxDictSize < (1 < 13))
-					*maxDictSize = 1 < 13;
-				else
-				{
-					/* make sure dict size is compatible with lzip,
-					 * this will effectively collapse it to a close power
-					 * of 2 */
-					*maxDictSize = elzma_get_dict_size(*maxDictSize);
-				}
-			}
-			else if (!strcmp(arg, "v") || !strcmp(arg, "verbose"))
-			{
-				*verbose = 1;
-			}
-			else if (!strcmp(arg, "f") || !strcmp(arg, "force"))
-			{
-				*overwrite = 1;
-			}
-			else if (!strcmp(arg, "k") || !strcmp(arg, "keep"))
-			{
-				*keep = 1;
-			}
-			else if (strlen(arg) == 1 && arg[0] >= '1' && arg[0] <= '9')
-			{
-				*level = arg[0] - '0';
-			}
-			else if (!strcmp(arg, "lzma"))
-			{
-				*format = ELZMA_lzma;
-			}
-			else if (!strcmp(arg, "lzip"))
-			{
-				*format = ELZMA_lzip;
-			}
-			else if (!strcmp(arg, "z") || !strcmp(arg, "d") || !strcmp(arg, "compress") ||
-					 !strcmp(arg, "decompress"))
-			{
-				/* noop */
-			}
-			else
-			{
-				return 1;
-			}
-		}
-		else
-		{
-			*fname = argv[i];
-			break;
-		}
-	}
-
-	/* proper number of arguments? */
-	if (i != argc - 1 || *fname == NULL)
-		return 1;
-
-	return 0;
-}
-
-/* callbacks for streamed input and output */
-static size_t elzmaWriteFunc(void *ctx, const void *buf, size_t size)
-{
-	size_t wt;
-	FILE *f = (FILE *)ctx;
-	assert(f != NULL);
-
-	wt = fwrite(buf, 1, size, f);
-
-	return wt;
-}
-
-static int elzmaReadFunc(void *ctx, void *buf, size_t *size)
-{
-	FILE *f = (FILE *)ctx;
-	assert(f != NULL);
-	*size = fread(buf, 1, *size, f);
-
-	return 0;
-}
-
-static void printProgressHeader(void)
-{
-	printf("|0%%                            50%%                          100%%|\n");
-}
-
-static void endProgress(int pCtx)
-{
-	while (pCtx++ < 64)
-	{
-		printf(".");
-	}
-	printf("|\n");
-}
-
-static void elzmaProgressFunc(void *ctx, size_t complete, size_t total)
-{
-	int *dots = (int *)ctx;
-	int wantDots = (int)(64 * (double)complete / (double)total);
-	if (*dots == 0)
-	{
-		printf("|");
-		(*dots)++;
-	}
-	while (wantDots > *dots)
-	{
-		printf(".");
-		(*dots)++;
-	}
-	fflush(stdout);
-}
-
-static int doCompress(int argc, char **argv)
-{
-	/* default compression parameters, some of which may be overridded by
-	 * command line arguments */
-	unsigned char level = 5;
-	unsigned char lc = ELZMA_LC_DEFAULT;
-	unsigned char lp = ELZMA_LP_DEFAULT;
-	unsigned char pb = ELZMA_PB_DEFAULT;
-	unsigned int maxDictSize = ELZMA_DICT_SIZE_DEFAULT_MAX;
-	unsigned int dictSize = 0;
-	elzma_file_format format = ELZMA_lzma;
-	char *ext = ".lzma";
-	char *ifname = NULL;
-	char *ofname = NULL;
-	unsigned int verbose = 0;
-	FILE *inFile = NULL;
-	FILE *outFile = NULL;
-	elzma_compress_handle hand = NULL;
-	/* XXX: large file support */
-	unsigned int uncompressedSize = 0;
-	unsigned int keep = 0;
-	unsigned int overwrite = 0;
-
-	if (0 != parseCompressArgs(argc, argv, &level, &ifname, &maxDictSize, &verbose, &keep,
-							   &overwrite, &format))
-	{
-		fprintf(stderr, ELZMA_COMPRESS_USAGE);
-		return 1;
-	}
-
-	/* extension switching based on compression type*/
-	if (format == ELZMA_lzip)
-		ext = ".lz";
-
-	/* generate output file name */
-	{
-		ofname = malloc(strlen(ifname) + strlen(ext) + 1);
-		ofname[0] = 0;
-		strcat(ofname, ifname);
-		strcat(ofname, ext);
-	}
-
-	/* now attempt to open input and ouput files */
-	/* XXX: stdin/stdout support */
-	if (0 != openFiles(ifname, &inFile, ofname, &outFile, overwrite))
-	{
-		return 1;
-	}
-
-	/* set uncompressed size */
-	if (0 != fseek(inFile, 0, SEEK_END) || 0 == (uncompressedSize = ftell(inFile)) ||
-		0 != fseek(inFile, 0, SEEK_SET))
-	{
-		fprintf(stderr, "error seeking input file (%s) - zero length?\n", ifname);
-		deleteFile(ofname);
-		return 1;
-	}
-
-	/* determine a reasonable dictionary size given input size */
-	dictSize = elzma_get_dict_size(uncompressedSize);
-	if (dictSize > maxDictSize)
-		dictSize = maxDictSize;
-
-	if (verbose)
-	{
-		printf("compressing '%s' to '%s'\n", ifname, ofname);
-		printf("lc/lp/pb = %u/%u/%u | dictionary size = %u bytes\n", lc, lp, pb, dictSize);
-		printf("input file is %u bytes\n", uncompressedSize);
-	}
-
-	/* allocate a compression handle */
-	hand = elzma_compress_alloc();
-	if (hand == NULL)
-	{
-		fprintf(stderr, "couldn't allocate compression object\n");
-		deleteFile(ofname);
-		return 1;
-	}
-
-	if (ELZMA_E_OK !=
-		elzma_compress_config(hand, lc, lp, pb, level, dictSize, format, uncompressedSize))
-	{
-		fprintf(stderr, "couldn't configure compression with "
-						"provided parameters\n");
-		deleteFile(ofname);
-		return 1;
-	}
-
-	{
-		int rv;
-		int pCtx = 0;
-
-		if (verbose)
-			printProgressHeader();
-
-		rv = elzma_compress_run(hand, elzmaReadFunc, (void *)inFile, elzmaWriteFunc,
-								(void *)outFile, (verbose ? elzmaProgressFunc : NULL), &pCtx);
-
-		if (verbose)
-			endProgress(pCtx);
-
-		if (ELZMA_E_OK != rv)
-		{
-			fprintf(stderr, "error compressing\n");
-			deleteFile(ofname);
-			return 1;
-		}
-	}
-
-	/* clean up */
-	elzma_compress_free(&hand);
-	fclose(inFile);
-	fclose(outFile);
-	free(ofname);
-
-	if (!keep)
-		deleteFile(ifname);
-
-	return 0;
-}
-
-#define ELZMA_DECOMPRESS_USAGE                                                                 \
-	"Decompress files compressed using the LZMA algorithm (in place by default).\n"            \
-	"\n"                                                                                       \
-	"Usage: unelzma [options] [file]\n"                                                        \
-	"  -f, --force      overwrite output files if they exist\n"                                \
-	"  -h, --help       output this message and exit\n"                                        \
-	"  -k, --keep       don't delete input files\n"                                            \
-	"  -v, --verbose    output verbose status information while decompressing\n"               \
-	"  -z, --compress   compress files (default when invoking elzma program)\n"                \
-	"  -d, --decompress decompress files (default when invoking unelzma program)\n"            \
-	"\n"
-/* parse arguments populating output parameters, return nonzero on failure */
-static int parseDecompressArgs(int argc, char **argv, char **fname, unsigned int *verbose,
-							   unsigned int *keep, unsigned int *overwrite)
-{
-	int i;
-
-	if (argc < 2)
-		return 1;
-
-	for (i = 1; i < argc; i++)
-	{
-		if (argv[i][0] == '-')
-		{
-			char *arg = &(argv[i][1]);
-			if (arg[0] == '-')
-				arg++;
-
-			/* now see what argument this is */
-			if (!strcmp(arg, "h") || !strcmp(arg, "help"))
-			{
-				return 1;
-			}
-			else if (!strcmp(arg, "v") || !strcmp(arg, "verbose"))
-			{
-				*verbose = 1;
-			}
-			else if (!strcmp(arg, "k") || !strcmp(arg, "keep"))
-			{
-				*keep = 1;
-			}
-			else if (!strcmp(arg, "f") || !strcmp(arg, "force"))
-			{
-				*overwrite = 1;
-			}
-			else if (!strcmp(arg, "z") || !strcmp(arg, "d") || !strcmp(arg, "compress") ||
-					 !strcmp(arg, "decompress"))
-			{
-				/* noop */
-			}
-			else
-			{
-				return 1;
-			}
-		}
-		else
-		{
-			*fname = argv[i];
-			break;
-		}
-	}
-
-	/* proper number of arguments? */
-	if (i != argc - 1 || *fname == NULL)
-		return 1;
-
-	return 0;
-}
-
-static int doDecompress(int argc, char **argv)
-{
-	char *ifname = NULL;
-	char *ofname = NULL;
-	unsigned int verbose = 0;
-	FILE *inFile = NULL;
-	FILE *outFile = NULL;
-	elzma_decompress_handle hand = NULL;
-	unsigned int overwrite = 0;
-	unsigned int keep = 0;
-	elzma_file_format format;
-	const char *lzmaExt = ".lzma";
-	const char *lzipExt = ".lz";
-	const char *ext = ".lz";
-
-	if (0 != parseDecompressArgs(argc, argv, &ifname, &verbose, &keep, &overwrite))
-	{
-		fprintf(stderr, ELZMA_DECOMPRESS_USAGE);
-		return 1;
-	}
-
-	/* generate output file name */
-	if (strlen(ifname) > strlen(lzmaExt) &&
-		0 == strcmp(lzmaExt, ifname + strlen(ifname) - strlen(lzmaExt)))
-	{
-		format = ELZMA_lzma;
-		ext = lzmaExt;
-	}
-	else if (strlen(ifname) > strlen(lzipExt) &&
-			 0 == strcmp(lzipExt, ifname + strlen(ifname) - strlen(lzipExt)))
-	{
-		format = ELZMA_lzip;
-		ext = lzipExt;
-	}
-	else
-	{
-		fprintf(stderr, "input file extension not recognized (expected either "
-						"%s or %s)",
-				lzmaExt, lzipExt);
-		return 1;
-	}
-
-	ofname = malloc(strlen(ifname) - strlen(ext));
-	ofname[0] = 0;
-	strncat(ofname, ifname, strlen(ifname) - strlen(ext));
-
-	/* now attempt to open input and ouput files */
-	/* XXX: stdin/stdout support */
-	if (0 != openFiles(ifname, &inFile, ofname, &outFile, overwrite))
-	{
-		return 1;
-	}
-
-	hand = elzma_decompress_alloc();
-	if (hand == NULL)
-	{
-		fprintf(stderr, "couldn't allocate decompression object\n");
-		deleteFile(ofname);
-		return 1;
-	}
-
-	if (ELZMA_E_OK != elzma_decompress_run(hand, elzmaReadFunc, (void *)inFile, elzmaWriteFunc,
-										   (void *)outFile, format))
-	{
-		fprintf(stderr, "error decompressing\n");
-		deleteFile(ofname);
-		return 1;
-	}
-
-	elzma_decompress_free(&hand);
-
-	if (!keep)
-		deleteFile(ifname);
-
-	return 0;
-}
-
-int main(int argc, char **argv)
-{
-	const char *unelzma = "unelzma";
-	const char *unelzmaLose = "unelzma.exe";
-	const char *elzma = "elzma";
-	const char *elzmaLose = "elzma.exe";
-
-	enum
-	{
-		RM_NONE,
-		RM_COMPRESS,
-		RM_DECOMPRESS
-	} runmode = RM_NONE;
-
-	/* first we'll determine the mode we're running in, indicated by
-	 * the binary name (argv[0]) or by the presence of a flag:
-	 * one of -z, -d, -compress, --decompress */
-	if ((strlen(argv[0]) >= strlen(unelzma) &&
-		 !strcmp((argv[0] + strlen(argv[0]) - strlen(unelzma)), unelzma)) ||
-		(strlen(argv[0]) >= strlen(unelzmaLose) &&
-		 !strcmp((argv[0] + strlen(argv[0]) - strlen(unelzmaLose)), unelzmaLose)))
-	{
-		runmode = RM_DECOMPRESS;
-	}
-	else if ((strlen(argv[0]) >= strlen(elzma) &&
-			  !strcmp((argv[0] + strlen(argv[0]) - strlen(elzma)), elzma)) ||
-			 (strlen(argv[0]) >= strlen(elzmaLose) &&
-			  !strcmp((argv[0] + strlen(argv[0]) - strlen(elzmaLose)), elzmaLose)))
-	{
-		runmode = RM_COMPRESS;
-	}
-
-	/* allow runmode to be overridded by a command line flag, first flag
-	 * wins */
-	{
-		int i;
-		for (i = 1; i < argc; i++)
-		{
-			if (!strcmp(argv[i], "-d") || !strcmp(argv[i], "--decompress"))
-			{
-				runmode = RM_DECOMPRESS;
-				break;
-			}
-			else if (!strcmp(argv[i], "-z") || !strcmp(argv[i], "--compress"))
-			{
-				runmode = RM_COMPRESS;
-				break;
-			}
-		}
-	}
-
-	if (runmode != RM_COMPRESS && runmode != RM_DECOMPRESS)
-	{
-		fprintf(stderr, "couldn't determine whether "
-						"you want to compress or decompress\n");
-		return 1;
-	}
-
-	if (runmode == RM_COMPRESS)
-		return doCompress(argc, argv);
-	return doDecompress(argc, argv);
-}
diff --git a/depends/lzma/include/common.h b/depends/lzma/include/common.h
deleted file mode 100644
index f02bdb4d..00000000
--- a/depends/lzma/include/common.h
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * Written in 2009 by Lloyd Hilaiel
- *
- * License
- *
- * All the cruft you find here is public domain.  You don't have to credit
- * anyone to use this code, but my personal request is that you mention
- * Igor Pavlov for his hard, high quality work.
- *
- * easylzma/common.h - definitions common to both compression and
- *                     decompression
- */
-
-#pragma once
-
-#include <stdlib.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* msft dll export gunk.  To build a DLL on windows, you
- * must define WIN32, EASYLZMA_SHARED, and EASYLZMA_BUILD.  To use a
- * DLL, you must define EASYLZMA_SHARED and WIN32 */
-#if defined(WIN32) && defined(EASYLZMA_SHARED)
-#ifdef EASYLZMA_BUILD
-#define EASYLZMA_API __declspec(dllexport)
-#else
-#define EASYLZMA_API __declspec(dllimport)
-#endif
-#else
-#define EASYLZMA_API
-#endif
-
-/** error codes */
-
-/** no error */
-#define ELZMA_E_OK 0
-/** bad parameters passed to an ELZMA function */
-#define ELZMA_E_BAD_PARAMS 10
-/** could not initialize the encode with configured parameters. */
-#define ELZMA_E_ENCODING_PROPERTIES_ERROR 11
-/** an error occured during compression (XXX: be more specific) */
-#define ELZMA_E_COMPRESS_ERROR 12
-/** currently unsupported lzma file format was specified*/
-#define ELZMA_E_UNSUPPORTED_FORMAT 13
-/** an error occured when reading input */
-#define ELZMA_E_INPUT_ERROR 14
-/** an error occured when writing output */
-#define ELZMA_E_OUTPUT_ERROR 15
-/** LZMA header couldn't be parsed */
-#define ELZMA_E_CORRUPT_HEADER 16
-/** an error occured during decompression (XXX: be more specific) */
-#define ELZMA_E_DECOMPRESS_ERROR 17
-/** the input stream returns EOF before the decompression could complete */
-#define ELZMA_E_INSUFFICIENT_INPUT 18
-/** for formats which have an emebedded crc, this error would indicated that
- *  what came out was not what went in, i.e. data corruption */
-#define ELZMA_E_CRC32_MISMATCH 19
-/** for formats which have an emebedded uncompressed content length,
- *  this error indicates that the amount we read was not what we expected */
-#define ELZMA_E_SIZE_MISMATCH 20
-
-/** Supported file formats */
-typedef enum
-{
-	ELZMA_lzip, /**< the lzip format which includes a magic number and
-				 *   CRC check */
-	ELZMA_lzma /**< the LZMA-Alone format, originally designed by
-				*   Igor Pavlov and in widespread use due to lzmautils,
-				*   lacking both aforementioned features of lzip */
-	/* XXX: future, potentially   ,
-		ELZMA_xz
-	*/
-} elzma_file_format;
-
-/**
- * A callback invoked during elzma_[de]compress_run when the [de]compression
- * process has generated [de]compressed output.
- *
- * the size parameter indicates how much data is in buf to be written.
- * it is required that the write callback consume all data, and a return
- * value not equal to input size indicates and error.
- */
-typedef size_t (*elzma_write_callback)(void *ctx, const void *buf, size_t size);
-
-/**
- * A callback invoked during elzma_[de]compress_run when the [de]compression
- * process requires more [un]compressed input.
- *
- * the size parameter is an in/out argument.  on input it indicates
- * the buffer size.  on output it indicates the amount of data read into
- * buf.  when *size is zero on output it indicates EOF.
- *
- * \returns the read callback should return nonzero on failure.
- */
-typedef int (*elzma_read_callback)(void *ctx, void *buf, size_t *size);
-
-/**
- * A callback invoked during elzma_[de]compress_run to report progress
- * on the [de]compression.
- *
- * \returns the read callback should return nonzero on failure.
- */
-typedef void (*elzma_progress_callback)(void *ctx, size_t complete, size_t total);
-
-/** pointer to a malloc function, supporting client overriding memory
- *  allocation routines */
-typedef void *(*elzma_malloc)(void *ctx, unsigned int sz);
-
-/** pointer to a free function, supporting client overriding memory
- *  allocation routines */
-typedef void (*elzma_free)(void *ctx, void *ptr);
-
-#ifdef __cplusplus
-}
-;
-#endif
diff --git a/depends/lzma/include/compress.h b/depends/lzma/include/compress.h
deleted file mode 100644
index 46c81d75..00000000
--- a/depends/lzma/include/compress.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * Written in 2009 by Lloyd Hilaiel
- *
- * License
- *
- * All the cruft you find here is public domain.  You don't have to credit
- * anyone to use this code, but my personal request is that you mention
- * Igor Pavlov for his hard, high quality work.
- *
- * compress.h - the API for LZMA compression using easylzma
- */
-
-#pragma once
-
-#include "common.h"
-#include <stdlib.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/** suggested default values */
-#define ELZMA_LC_DEFAULT 3
-#define ELZMA_LP_DEFAULT 0
-#define ELZMA_PB_DEFAULT 2
-#define ELZMA_DICT_SIZE_DEFAULT_MAX (1 << 24)
-
-/** an opaque handle to an lzma compressor */
-typedef struct _elzma_compress_handle *elzma_compress_handle;
-
-/**
- * Allocate a handle to an LZMA compressor object.
- */
-elzma_compress_handle EASYLZMA_API elzma_compress_alloc();
-
-/**
- * set allocation routines (optional, if not called malloc & free will
- * be used)
- */
-void EASYLZMA_API
-elzma_compress_set_allocation_callbacks(elzma_compress_handle hand, elzma_malloc mallocFunc,
-										void *mallocFuncContext, elzma_free freeFunc,
-										void *freeFuncContext);
-
-/**
- * Free all data associated with an LZMA compressor object.
- */
-void EASYLZMA_API elzma_compress_free(elzma_compress_handle *hand);
-
-/**
- * Set configuration paramters for a compression run.  If not called,
- * reasonable defaults will be used.
- */
-int EASYLZMA_API elzma_compress_config(elzma_compress_handle hand, unsigned char lc,
-									   unsigned char lp, unsigned char pb, unsigned char level,
-									   unsigned int dictionarySize, elzma_file_format format,
-									   unsigned long long uncompressedSize);
-
-/**
- * Run compression
- */
-int EASYLZMA_API
-elzma_compress_run(elzma_compress_handle hand, elzma_read_callback inputStream,
-				   void *inputContext, elzma_write_callback outputStream, void *outputContext,
-				   elzma_progress_callback progressCallback, void *progressContext);
-
-/**
- * a heuristic utility routine to guess a dictionary size that gets near
- * optimal compression while reducing memory usage.
- * accepts a size in bytes, returns a proposed dictionary size
- */
-unsigned int EASYLZMA_API elzma_get_dict_size(unsigned long long size);
-
-#ifdef __cplusplus
-}
-;
-#endif
diff --git a/depends/lzma/include/decompress.h b/depends/lzma/include/decompress.h
deleted file mode 100644
index cb10b2ba..00000000
--- a/depends/lzma/include/decompress.h
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * Written in 2009 by Lloyd Hilaiel
- *
- * License
- *
- * All the cruft you find here is public domain.  You don't have to credit
- * anyone to use this code, but my personal request is that you mention
- * Igor Pavlov for his hard, high quality work.
- *
- * easylzma/decompress.h - The API for LZMA decompression using easylzma
- */
-
-#pragma once
-
-#include "include/common.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/** an opaque handle to an lzma decompressor */
-typedef struct _elzma_decompress_handle *elzma_decompress_handle;
-
-/**
- * Allocate a handle to an LZMA decompressor object.
- */
-elzma_decompress_handle EASYLZMA_API elzma_decompress_alloc();
-
-/**
- * set allocation routines (optional, if not called malloc & free will
- * be used)
- */
-void EASYLZMA_API
-elzma_decompress_set_allocation_callbacks(elzma_decompress_handle hand, elzma_malloc mallocFunc,
-										  void *mallocFuncContext, elzma_free freeFunc,
-										  void *freeFuncContext);
-
-/**
- * Free all data associated with an LZMA decompressor object.
- */
-void EASYLZMA_API elzma_decompress_free(elzma_decompress_handle *hand);
-
-/**
- * Perform decompression
- *
- * XXX: should the library automatically detect format by reading stream?
- *      currently it's based on data external to stream (such as extension
- *      or convention)
- */
-int EASYLZMA_API elzma_decompress_run(elzma_decompress_handle hand,
-									  elzma_read_callback inputStream, void *inputContext,
-									  elzma_write_callback outputStream, void *outputContext,
-									  elzma_file_format format);
-
-#ifdef __cplusplus
-}
-;
-#endif
diff --git a/depends/lzma/include/simple.h b/depends/lzma/include/simple.h
deleted file mode 100644
index 83f7b2d2..00000000
--- a/depends/lzma/include/simple.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Written in 2009 by Lloyd Hilaiel
- *
- * License
- *
- * All the cruft you find here is public domain.  You don't have to credit
- * anyone to use this code, but my personal request is that you mention
- * Igor Pavlov for his hard, high quality work.
- *
- * simple.h - a wrapper around easylzma to compress/decompress to memory
- */
-
-#pragma once
-
-#include "include/common.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include "include/compress.h"
-#include "include/decompress.h"
-
-/* compress a chunk of memory and return a dynamically allocated buffer
- * if successful.  return value is an easylzma error code */
-int EASYLZMA_API simpleCompress(elzma_file_format format, const unsigned char *inData,
-								size_t inLen, unsigned char **outData, size_t *outLen);
-
-/* decompress a chunk of memory and return a dynamically allocated buffer
- * if successful.  return value is an easylzma error code */
-int EASYLZMA_API simpleDecompress(elzma_file_format format, const unsigned char *inData,
-								  size_t inLen, unsigned char **outData, size_t *outLen);
-
-#ifdef __cplusplus
-}
-;
-#endif
\ No newline at end of file
diff --git a/depends/lzma/pavlov/7zCrc.c b/depends/lzma/pavlov/7zCrc.c
deleted file mode 100755
index c1598ce2..00000000
--- a/depends/lzma/pavlov/7zCrc.c
+++ /dev/null
@@ -1,35 +0,0 @@
-/* 7zCrc.c -- CRC32 calculation
-2008-08-05
-Igor Pavlov
-Public domain */
-
-#include "7zCrc.h"
-
-#define kCrcPoly 0xEDB88320
-uint32_t g_CrcTable[256];
-
-void MY_FAST_CALL CrcGenerateTable(void)
-{
-	uint32_t i;
-	for (i = 0; i < 256; i++)
-	{
-		uint32_t r = i;
-		int j;
-		for (j = 0; j < 8; j++)
-			r = (r >> 1) ^ (kCrcPoly & ~((r & 1) - 1));
-		g_CrcTable[i] = r;
-	}
-}
-
-uint32_t MY_FAST_CALL CrcUpdate(uint32_t v, const void *data, size_t size)
-{
-	const uint8_t *p = (const uint8_t *)data;
-	for (; size > 0; size--, p++)
-		v = CRC_UPDATE_BYTE(v, *p);
-	return v;
-}
-
-uint32_t MY_FAST_CALL CrcCalc(const void *data, size_t size)
-{
-	return CrcUpdate(CRC_INIT_VAL, data, size) ^ 0xFFFFFFFF;
-}
diff --git a/depends/lzma/pavlov/7zCrc.h b/depends/lzma/pavlov/7zCrc.h
deleted file mode 100755
index 0609cb87..00000000
--- a/depends/lzma/pavlov/7zCrc.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/* 7zCrc.h -- CRC32 calculation
-2008-03-13
-Igor Pavlov
-Public domain */
-
-#ifndef __7Z_CRC_H
-#define __7Z_CRC_H
-
-#include <stddef.h>
-
-#include "Types.h"
-
-extern uint32_t g_CrcTable[];
-
-void MY_FAST_CALL CrcGenerateTable(void);
-
-#define CRC_INIT_VAL 0xFFFFFFFF
-#define CRC_GET_DIGEST(crc) ((crc) ^ 0xFFFFFFFF)
-#define CRC_UPDATE_BYTE(crc, b) (g_CrcTable[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))
-
-uint32_t MY_FAST_CALL CrcUpdate(uint32_t crc, const void *data, size_t size);
-uint32_t MY_FAST_CALL CrcCalc(const void *data, size_t size);
-
-#endif
diff --git a/depends/lzma/pavlov/LzFind.c b/depends/lzma/pavlov/LzFind.c
deleted file mode 100755
index 75003ac1..00000000
--- a/depends/lzma/pavlov/LzFind.c
+++ /dev/null
@@ -1,779 +0,0 @@
-/* LzFind.c -- Match finder for LZ algorithms
-2008-10-04 : Igor Pavlov : Public domain */
-
-#include <string.h>
-#include <stdlib.h>
-
-#include "LzFind.h"
-#include "LzHash.h"
-
-#define kEmptyHashValue 0
-#define kMaxValForNormalize ((uint32_t)0xFFFFFFFF)
-#define kNormalizeStepMin (1 << 10) /* it must be power of 2 */
-#define kNormalizeMask (~(kNormalizeStepMin - 1))
-#define kMaxHistorySize ((uint32_t)3 << 30)
-
-#define kStartMaxLen 3
-
-static void LzInWindow_Free(CMatchFinder *p)
-{
-	if (!p->directInput)
-	{
-		free(p->bufferBase);
-		p->bufferBase = 0;
-	}
-}
-
-/* keepSizeBefore + keepSizeAfter + keepSizeReserv must be < 4G) */
-
-static int LzInWindow_Create(CMatchFinder *p, uint32_t keepSizeReserv)
-{
-	uint32_t blockSize = p->keepSizeBefore + p->keepSizeAfter + keepSizeReserv;
-	if (p->directInput)
-	{
-		p->blockSize = blockSize;
-		return 1;
-	}
-	if (p->bufferBase == 0 || p->blockSize != blockSize)
-	{
-		LzInWindow_Free(p);
-		p->blockSize = blockSize;
-		p->bufferBase = (uint8_t *)malloc((size_t)blockSize);
-	}
-	return (p->bufferBase != 0);
-}
-
-uint8_t *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p)
-{
-	return p->buffer;
-}
-uint8_t MatchFinder_GetIndexByte(CMatchFinder *p, int32_t index)
-{
-	return p->buffer[index];
-}
-
-uint32_t MatchFinder_GetNumAvailableBytes(CMatchFinder *p)
-{
-	return p->streamPos - p->pos;
-}
-
-void MatchFinder_ReduceOffsets(CMatchFinder *p, uint32_t subValue)
-{
-	p->posLimit -= subValue;
-	p->pos -= subValue;
-	p->streamPos -= subValue;
-}
-
-static void MatchFinder_ReadBlock(CMatchFinder *p)
-{
-	if (p->streamEndWasReached || p->result != SZ_OK)
-		return;
-	for (;;)
-	{
-		uint8_t *dest = p->buffer + (p->streamPos - p->pos);
-		size_t size = (p->bufferBase + p->blockSize - dest);
-		if (size == 0)
-			return;
-		p->result = p->stream->Read(p->stream, dest, &size);
-		if (p->result != SZ_OK)
-			return;
-		if (size == 0)
-		{
-			p->streamEndWasReached = 1;
-			return;
-		}
-		p->streamPos += (uint32_t)size;
-		if (p->streamPos - p->pos > p->keepSizeAfter)
-			return;
-	}
-}
-
-void MatchFinder_MoveBlock(CMatchFinder *p)
-{
-	memmove(p->bufferBase, p->buffer - p->keepSizeBefore,
-			(size_t)(p->streamPos - p->pos + p->keepSizeBefore));
-	p->buffer = p->bufferBase + p->keepSizeBefore;
-}
-
-int MatchFinder_NeedMove(CMatchFinder *p)
-{
-	/* if (p->streamEndWasReached) return 0; */
-	return ((size_t)(p->bufferBase + p->blockSize - p->buffer) <= p->keepSizeAfter);
-}
-
-void MatchFinder_ReadIfRequired(CMatchFinder *p)
-{
-	if (p->streamEndWasReached)
-		return;
-	if (p->keepSizeAfter >= p->streamPos - p->pos)
-		MatchFinder_ReadBlock(p);
-}
-
-static void MatchFinder_CheckAndMoveAndRead(CMatchFinder *p)
-{
-	if (MatchFinder_NeedMove(p))
-		MatchFinder_MoveBlock(p);
-	MatchFinder_ReadBlock(p);
-}
-
-static void MatchFinder_SetDefaultSettings(CMatchFinder *p)
-{
-	p->cutValue = 32;
-	p->btMode = 1;
-	p->numHashBytes = 4;
-	/* p->skipModeBits = 0; */
-	p->directInput = 0;
-	p->bigHash = 0;
-}
-
-#define kCrcPoly 0xEDB88320
-
-void MatchFinder_Construct(CMatchFinder *p)
-{
-	uint32_t i;
-	p->bufferBase = 0;
-	p->directInput = 0;
-	p->hash = 0;
-	MatchFinder_SetDefaultSettings(p);
-
-	for (i = 0; i < 256; i++)
-	{
-		uint32_t r = i;
-		int j;
-		for (j = 0; j < 8; j++)
-			r = (r >> 1) ^ (kCrcPoly & ~((r & 1) - 1));
-		p->crc[i] = r;
-	}
-}
-
-static void MatchFinder_FreeThisClassMemory(CMatchFinder *p)
-{
-	free(p->hash);
-	p->hash = 0;
-}
-
-void MatchFinder_Free(CMatchFinder *p)
-{
-	MatchFinder_FreeThisClassMemory(p);
-	LzInWindow_Free(p);
-}
-
-static CLzRef *AllocRefs(uint32_t num)
-{
-	size_t sizeInBytes = (size_t)num * sizeof(CLzRef);
-	if (sizeInBytes / sizeof(CLzRef) != num)
-		return 0;
-	return (CLzRef *)malloc(sizeInBytes);
-}
-
-int MatchFinder_Create(CMatchFinder *p, uint32_t historySize, uint32_t keepAddBufferBefore,
-					   uint32_t matchMaxLen, uint32_t keepAddBufferAfter)
-{
-	uint32_t sizeReserv;
-	if (historySize > kMaxHistorySize)
-	{
-		MatchFinder_Free(p);
-		return 0;
-	}
-	sizeReserv = historySize >> 1;
-	if (historySize > ((uint32_t)2 << 30))
-		sizeReserv = historySize >> 2;
-	sizeReserv += (keepAddBufferBefore + matchMaxLen + keepAddBufferAfter) / 2 + (1 << 19);
-
-	p->keepSizeBefore = historySize + keepAddBufferBefore + 1;
-	p->keepSizeAfter = matchMaxLen + keepAddBufferAfter;
-	/* we need one additional byte, since we use MoveBlock after pos++ and before dictionary
-	 * using */
-	if (LzInWindow_Create(p, sizeReserv))
-	{
-		uint32_t newCyclicBufferSize = (historySize /* >> p->skipModeBits */) + 1;
-		uint32_t hs;
-		p->matchMaxLen = matchMaxLen;
-		{
-			p->fixedHashSize = 0;
-			if (p->numHashBytes == 2)
-				hs = (1 << 16) - 1;
-			else
-			{
-				hs = historySize - 1;
-				hs |= (hs >> 1);
-				hs |= (hs >> 2);
-				hs |= (hs >> 4);
-				hs |= (hs >> 8);
-				hs >>= 1;
-				/* hs >>= p->skipModeBits; */
-				hs |= 0xFFFF; /* don't change it! It's required for Deflate */
-				if (hs > (1 << 24))
-				{
-					if (p->numHashBytes == 3)
-						hs = (1 << 24) - 1;
-					else
-						hs >>= 1;
-				}
-			}
-			p->hashMask = hs;
-			hs++;
-			if (p->numHashBytes > 2)
-				p->fixedHashSize += kHash2Size;
-			if (p->numHashBytes > 3)
-				p->fixedHashSize += kHash3Size;
-			if (p->numHashBytes > 4)
-				p->fixedHashSize += kHash4Size;
-			hs += p->fixedHashSize;
-		}
-
-		{
-			uint32_t prevSize = p->hashSizeSum + p->numSons;
-			uint32_t newSize;
-			p->historySize = historySize;
-			p->hashSizeSum = hs;
-			p->cyclicBufferSize = newCyclicBufferSize;
-			p->numSons = (p->btMode ? newCyclicBufferSize * 2 : newCyclicBufferSize);
-			newSize = p->hashSizeSum + p->numSons;
-			if (p->hash != 0 && prevSize == newSize)
-				return 1;
-			MatchFinder_FreeThisClassMemory(p);
-			p->hash = AllocRefs(newSize);
-			if (p->hash != 0)
-			{
-				p->son = p->hash + p->hashSizeSum;
-				return 1;
-			}
-		}
-	}
-	MatchFinder_Free(p);
-	return 0;
-}
-
-static void MatchFinder_SetLimits(CMatchFinder *p)
-{
-	uint32_t limit = kMaxValForNormalize - p->pos;
-	uint32_t limit2 = p->cyclicBufferSize - p->cyclicBufferPos;
-	if (limit2 < limit)
-		limit = limit2;
-	limit2 = p->streamPos - p->pos;
-	if (limit2 <= p->keepSizeAfter)
-	{
-		if (limit2 > 0)
-			limit2 = 1;
-	}
-	else
-		limit2 -= p->keepSizeAfter;
-	if (limit2 < limit)
-		limit = limit2;
-	{
-		uint32_t lenLimit = p->streamPos - p->pos;
-		if (lenLimit > p->matchMaxLen)
-			lenLimit = p->matchMaxLen;
-		p->lenLimit = lenLimit;
-	}
-	p->posLimit = p->pos + limit;
-}
-
-void MatchFinder_Init(CMatchFinder *p)
-{
-	uint32_t i;
-	for (i = 0; i < p->hashSizeSum; i++)
-		p->hash[i] = kEmptyHashValue;
-	p->cyclicBufferPos = 0;
-	p->buffer = p->bufferBase;
-	p->pos = p->streamPos = p->cyclicBufferSize;
-	p->result = SZ_OK;
-	p->streamEndWasReached = 0;
-	MatchFinder_ReadBlock(p);
-	MatchFinder_SetLimits(p);
-}
-
-static uint32_t MatchFinder_GetSubValue(CMatchFinder *p)
-{
-	return (p->pos - p->historySize - 1) & kNormalizeMask;
-}
-
-void MatchFinder_Normalize3(uint32_t subValue, CLzRef *items, uint32_t numItems)
-{
-	uint32_t i;
-	for (i = 0; i < numItems; i++)
-	{
-		uint32_t value = items[i];
-		if (value <= subValue)
-			value = kEmptyHashValue;
-		else
-			value -= subValue;
-		items[i] = value;
-	}
-}
-
-static void MatchFinder_Normalize(CMatchFinder *p)
-{
-	uint32_t subValue = MatchFinder_GetSubValue(p);
-	MatchFinder_Normalize3(subValue, p->hash, p->hashSizeSum + p->numSons);
-	MatchFinder_ReduceOffsets(p, subValue);
-}
-
-static void MatchFinder_CheckLimits(CMatchFinder *p)
-{
-	if (p->pos == kMaxValForNormalize)
-		MatchFinder_Normalize(p);
-	if (!p->streamEndWasReached && p->keepSizeAfter == p->streamPos - p->pos)
-		MatchFinder_CheckAndMoveAndRead(p);
-	if (p->cyclicBufferPos == p->cyclicBufferSize)
-		p->cyclicBufferPos = 0;
-	MatchFinder_SetLimits(p);
-}
-
-static uint32_t *Hc_GetMatchesSpec(uint32_t lenLimit, uint32_t curMatch, uint32_t pos,
-								   const uint8_t *cur, CLzRef *son, uint32_t _cyclicBufferPos,
-								   uint32_t _cyclicBufferSize, uint32_t cutValue,
-								   uint32_t *distances, uint32_t maxLen)
-{
-	son[_cyclicBufferPos] = curMatch;
-	for (;;)
-	{
-		uint32_t delta = pos - curMatch;
-		if (cutValue-- == 0 || delta >= _cyclicBufferSize)
-			return distances;
-		{
-			const uint8_t *pb = cur - delta;
-			curMatch = son[_cyclicBufferPos - delta +
-						   ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)];
-			if (pb[maxLen] == cur[maxLen] && *pb == *cur)
-			{
-				uint32_t len = 0;
-				while (++len != lenLimit)
-					if (pb[len] != cur[len])
-						break;
-				if (maxLen < len)
-				{
-					*distances++ = maxLen = len;
-					*distances++ = delta - 1;
-					if (len == lenLimit)
-						return distances;
-				}
-			}
-		}
-	}
-}
-
-uint32_t *GetMatchesSpec1(uint32_t lenLimit, uint32_t curMatch, uint32_t pos,
-						  const uint8_t *cur, CLzRef *son, uint32_t _cyclicBufferPos,
-						  uint32_t _cyclicBufferSize, uint32_t cutValue, uint32_t *distances,
-						  uint32_t maxLen)
-{
-	CLzRef *ptr0 = son + (_cyclicBufferPos << 1) + 1;
-	CLzRef *ptr1 = son + (_cyclicBufferPos << 1);
-	uint32_t len0 = 0, len1 = 0;
-	for (;;)
-	{
-		uint32_t delta = pos - curMatch;
-		if (cutValue-- == 0 || delta >= _cyclicBufferSize)
-		{
-			*ptr0 = *ptr1 = kEmptyHashValue;
-			return distances;
-		}
-		{
-			CLzRef *pair = son + ((_cyclicBufferPos - delta +
-								   ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0))
-								  << 1);
-			const uint8_t *pb = cur - delta;
-			uint32_t len = (len0 < len1 ? len0 : len1);
-			if (pb[len] == cur[len])
-			{
-				if (++len != lenLimit && pb[len] == cur[len])
-					while (++len != lenLimit)
-						if (pb[len] != cur[len])
-							break;
-				if (maxLen < len)
-				{
-					*distances++ = maxLen = len;
-					*distances++ = delta - 1;
-					if (len == lenLimit)
-					{
-						*ptr1 = pair[0];
-						*ptr0 = pair[1];
-						return distances;
-					}
-				}
-			}
-			if (pb[len] < cur[len])
-			{
-				*ptr1 = curMatch;
-				ptr1 = pair + 1;
-				curMatch = *ptr1;
-				len1 = len;
-			}
-			else
-			{
-				*ptr0 = curMatch;
-				ptr0 = pair;
-				curMatch = *ptr0;
-				len0 = len;
-			}
-		}
-	}
-}
-
-static void SkipMatchesSpec(uint32_t lenLimit, uint32_t curMatch, uint32_t pos,
-							const uint8_t *cur, CLzRef *son, uint32_t _cyclicBufferPos,
-							uint32_t _cyclicBufferSize, uint32_t cutValue)
-{
-	CLzRef *ptr0 = son + (_cyclicBufferPos << 1) + 1;
-	CLzRef *ptr1 = son + (_cyclicBufferPos << 1);
-	uint32_t len0 = 0, len1 = 0;
-	for (;;)
-	{
-		uint32_t delta = pos - curMatch;
-		if (cutValue-- == 0 || delta >= _cyclicBufferSize)
-		{
-			*ptr0 = *ptr1 = kEmptyHashValue;
-			return;
-		}
-		{
-			CLzRef *pair = son + ((_cyclicBufferPos - delta +
-								   ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0))
-								  << 1);
-			const uint8_t *pb = cur - delta;
-			uint32_t len = (len0 < len1 ? len0 : len1);
-			if (pb[len] == cur[len])
-			{
-				while (++len != lenLimit)
-					if (pb[len] != cur[len])
-						break;
-				{
-					if (len == lenLimit)
-					{
-						*ptr1 = pair[0];
-						*ptr0 = pair[1];
-						return;
-					}
-				}
-			}
-			if (pb[len] < cur[len])
-			{
-				*ptr1 = curMatch;
-				ptr1 = pair + 1;
-				curMatch = *ptr1;
-				len1 = len;
-			}
-			else
-			{
-				*ptr0 = curMatch;
-				ptr0 = pair;
-				curMatch = *ptr0;
-				len0 = len;
-			}
-		}
-	}
-}
-
-#define MOVE_POS                                                                               \
-	++p->cyclicBufferPos;                                                                      \
-	p->buffer++;                                                                               \
-	if (++p->pos == p->posLimit)                                                               \
-		MatchFinder_CheckLimits(p);
-
-#define MOVE_POS_RET MOVE_POS return offset;
-
-static void MatchFinder_MovePos(CMatchFinder *p)
-{
-	MOVE_POS;
-}
-
-#define GET_MATCHES_HEADER2(minLen, ret_op)                                                    \
-	uint32_t lenLimit;                                                                         \
-	uint32_t hashValue;                                                                        \
-	const uint8_t *cur;                                                                        \
-	uint32_t curMatch;                                                                         \
-	lenLimit = p->lenLimit;                                                                    \
-	{                                                                                          \
-		if (lenLimit < minLen)                                                                 \
-		{                                                                                      \
-			MatchFinder_MovePos(p);                                                            \
-			ret_op;                                                                            \
-		}                                                                                      \
-	}                                                                                          \
-	cur = p->buffer;
-
-#define GET_MATCHES_HEADER(minLen) GET_MATCHES_HEADER2(minLen, return 0)
-#define SKIP_HEADER(minLen) GET_MATCHES_HEADER2(minLen, continue)
-
-#define MF_PARAMS(p)                                                                           \
-	p->pos, p->buffer, p->son, p->cyclicBufferPos, p->cyclicBufferSize, p->cutValue
-
-#define GET_MATCHES_FOOTER(offset, maxLen)                                                     \
-	offset = (uint32_t)(                                                                       \
-		GetMatchesSpec1(lenLimit, curMatch, MF_PARAMS(p), distances + offset, maxLen) -        \
-		distances);                                                                            \
-	MOVE_POS_RET;
-
-#define SKIP_FOOTER                                                                            \
-	SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p));                                         \
-	MOVE_POS;
-
-static uint32_t Bt2_MatchFinder_GetMatches(CMatchFinder *p, uint32_t *distances)
-{
-	uint32_t offset;
-	GET_MATCHES_HEADER(2)
-	HASH2_CALC;
-	curMatch = p->hash[hashValue];
-	p->hash[hashValue] = p->pos;
-	offset = 0;
-	GET_MATCHES_FOOTER(offset, 1)
-}
-
-uint32_t Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, uint32_t *distances)
-{
-	uint32_t offset;
-	GET_MATCHES_HEADER(3)
-	HASH_ZIP_CALC;
-	curMatch = p->hash[hashValue];
-	p->hash[hashValue] = p->pos;
-	offset = 0;
-	GET_MATCHES_FOOTER(offset, 2)
-}
-
-static uint32_t Bt3_MatchFinder_GetMatches(CMatchFinder *p, uint32_t *distances)
-{
-	uint32_t hash2Value, delta2, maxLen, offset;
-	GET_MATCHES_HEADER(3)
-
-	HASH3_CALC;
-
-	delta2 = p->pos - p->hash[hash2Value];
-	curMatch = p->hash[kFix3HashSize + hashValue];
-
-	p->hash[hash2Value] = p->hash[kFix3HashSize + hashValue] = p->pos;
-
-	maxLen = 2;
-	offset = 0;
-	if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
-	{
-		for (; maxLen != lenLimit; maxLen++)
-			if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
-				break;
-		distances[0] = maxLen;
-		distances[1] = delta2 - 1;
-		offset = 2;
-		if (maxLen == lenLimit)
-		{
-			SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p));
-			MOVE_POS_RET;
-		}
-	}
-	GET_MATCHES_FOOTER(offset, maxLen)
-}
-
-static uint32_t Bt4_MatchFinder_GetMatches(CMatchFinder *p, uint32_t *distances)
-{
-	uint32_t hash2Value, hash3Value, delta2, delta3, maxLen, offset;
-	GET_MATCHES_HEADER(4)
-
-	HASH4_CALC;
-
-	delta2 = p->pos - p->hash[hash2Value];
-	delta3 = p->pos - p->hash[kFix3HashSize + hash3Value];
-	curMatch = p->hash[kFix4HashSize + hashValue];
-
-	p->hash[hash2Value] = p->hash[kFix3HashSize + hash3Value] =
-		p->hash[kFix4HashSize + hashValue] = p->pos;
-
-	maxLen = 1;
-	offset = 0;
-	if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
-	{
-		distances[0] = maxLen = 2;
-		distances[1] = delta2 - 1;
-		offset = 2;
-	}
-	if (delta2 != delta3 && delta3 < p->cyclicBufferSize && *(cur - delta3) == *cur)
-	{
-		maxLen = 3;
-		distances[offset + 1] = delta3 - 1;
-		offset += 2;
-		delta2 = delta3;
-	}
-	if (offset != 0)
-	{
-		for (; maxLen != lenLimit; maxLen++)
-			if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
-				break;
-		distances[offset - 2] = maxLen;
-		if (maxLen == lenLimit)
-		{
-			SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p));
-			MOVE_POS_RET;
-		}
-	}
-	if (maxLen < 3)
-		maxLen = 3;
-	GET_MATCHES_FOOTER(offset, maxLen)
-}
-
-static uint32_t Hc4_MatchFinder_GetMatches(CMatchFinder *p, uint32_t *distances)
-{
-	uint32_t hash2Value, hash3Value, delta2, delta3, maxLen, offset;
-	GET_MATCHES_HEADER(4)
-
-	HASH4_CALC;
-
-	delta2 = p->pos - p->hash[hash2Value];
-	delta3 = p->pos - p->hash[kFix3HashSize + hash3Value];
-	curMatch = p->hash[kFix4HashSize + hashValue];
-
-	p->hash[hash2Value] = p->hash[kFix3HashSize + hash3Value] =
-		p->hash[kFix4HashSize + hashValue] = p->pos;
-
-	maxLen = 1;
-	offset = 0;
-	if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
-	{
-		distances[0] = maxLen = 2;
-		distances[1] = delta2 - 1;
-		offset = 2;
-	}
-	if (delta2 != delta3 && delta3 < p->cyclicBufferSize && *(cur - delta3) == *cur)
-	{
-		maxLen = 3;
-		distances[offset + 1] = delta3 - 1;
-		offset += 2;
-		delta2 = delta3;
-	}
-	if (offset != 0)
-	{
-		for (; maxLen != lenLimit; maxLen++)
-			if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
-				break;
-		distances[offset - 2] = maxLen;
-		if (maxLen == lenLimit)
-		{
-			p->son[p->cyclicBufferPos] = curMatch;
-			MOVE_POS_RET;
-		}
-	}
-	if (maxLen < 3)
-		maxLen = 3;
-	offset = (uint32_t)(
-		Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p), distances + offset, maxLen) -
-		(distances));
-	MOVE_POS_RET
-}
-
-uint32_t Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, uint32_t *distances)
-{
-	uint32_t offset;
-	GET_MATCHES_HEADER(3)
-	HASH_ZIP_CALC;
-	curMatch = p->hash[hashValue];
-	p->hash[hashValue] = p->pos;
-	offset = (uint32_t)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p), distances, 2) -
-						(distances));
-	MOVE_POS_RET
-}
-
-static void Bt2_MatchFinder_Skip(CMatchFinder *p, uint32_t num)
-{
-	do
-	{
-		SKIP_HEADER(2)
-		HASH2_CALC;
-		curMatch = p->hash[hashValue];
-		p->hash[hashValue] = p->pos;
-		SKIP_FOOTER
-	} while (--num != 0);
-}
-
-void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, uint32_t num)
-{
-	do
-	{
-		SKIP_HEADER(3)
-		HASH_ZIP_CALC;
-		curMatch = p->hash[hashValue];
-		p->hash[hashValue] = p->pos;
-		SKIP_FOOTER
-	} while (--num != 0);
-}
-
-static void Bt3_MatchFinder_Skip(CMatchFinder *p, uint32_t num)
-{
-	do
-	{
-		uint32_t hash2Value;
-		SKIP_HEADER(3)
-		HASH3_CALC;
-		curMatch = p->hash[kFix3HashSize + hashValue];
-		p->hash[hash2Value] = p->hash[kFix3HashSize + hashValue] = p->pos;
-		SKIP_FOOTER
-	} while (--num != 0);
-}
-
-static void Bt4_MatchFinder_Skip(CMatchFinder *p, uint32_t num)
-{
-	do
-	{
-		uint32_t hash2Value, hash3Value;
-		SKIP_HEADER(4)
-		HASH4_CALC;
-		curMatch = p->hash[kFix4HashSize + hashValue];
-		p->hash[hash2Value] = p->hash[kFix3HashSize + hash3Value] = p->pos;
-		p->hash[kFix4HashSize + hashValue] = p->pos;
-		SKIP_FOOTER
-	} while (--num != 0);
-}
-
-static void Hc4_MatchFinder_Skip(CMatchFinder *p, uint32_t num)
-{
-	do
-	{
-		uint32_t hash2Value, hash3Value;
-		SKIP_HEADER(4)
-		HASH4_CALC;
-		curMatch = p->hash[kFix4HashSize + hashValue];
-		p->hash[hash2Value] = p->hash[kFix3HashSize + hash3Value] =
-			p->hash[kFix4HashSize + hashValue] = p->pos;
-		p->son[p->cyclicBufferPos] = curMatch;
-		MOVE_POS
-	} while (--num != 0);
-}
-
-void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, uint32_t num)
-{
-	do
-	{
-		SKIP_HEADER(3)
-		HASH_ZIP_CALC;
-		curMatch = p->hash[hashValue];
-		p->hash[hashValue] = p->pos;
-		p->son[p->cyclicBufferPos] = curMatch;
-		MOVE_POS
-	} while (--num != 0);
-}
-
-void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable)
-{
-	vTable->Init = (Mf_Init_Func)MatchFinder_Init;
-	vTable->GetIndexByte = (Mf_GetIndexByte_Func)MatchFinder_GetIndexByte;
-	vTable->GetNumAvailableBytes =
-		(Mf_GetNumAvailableBytes_Func)MatchFinder_GetNumAvailableBytes;
-	vTable->GetPointerToCurrentPos =
-		(Mf_GetPointerToCurrentPos_Func)MatchFinder_GetPointerToCurrentPos;
-	if (!p->btMode)
-	{
-		vTable->GetMatches = (Mf_GetMatches_Func)Hc4_MatchFinder_GetMatches;
-		vTable->Skip = (Mf_Skip_Func)Hc4_MatchFinder_Skip;
-	}
-	else if (p->numHashBytes == 2)
-	{
-		vTable->GetMatches = (Mf_GetMatches_Func)Bt2_MatchFinder_GetMatches;
-		vTable->Skip = (Mf_Skip_Func)Bt2_MatchFinder_Skip;
-	}
-	else if (p->numHashBytes == 3)
-	{
-		vTable->GetMatches = (Mf_GetMatches_Func)Bt3_MatchFinder_GetMatches;
-		vTable->Skip = (Mf_Skip_Func)Bt3_MatchFinder_Skip;
-	}
-	else
-	{
-		vTable->GetMatches = (Mf_GetMatches_Func)Bt4_MatchFinder_GetMatches;
-		vTable->Skip = (Mf_Skip_Func)Bt4_MatchFinder_Skip;
-	}
-}
diff --git a/depends/lzma/pavlov/LzFind.h b/depends/lzma/pavlov/LzFind.h
deleted file mode 100755
index 12d89aac..00000000
--- a/depends/lzma/pavlov/LzFind.h
+++ /dev/null
@@ -1,107 +0,0 @@
-/* LzFind.h -- Match finder for LZ algorithms
-2008-10-04 : Igor Pavlov : Public domain */
-
-#ifndef __LZFIND_H
-#define __LZFIND_H
-
-#include "Types.h"
-
-typedef uint32_t CLzRef;
-
-typedef struct _CMatchFinder
-{
-	uint8_t *buffer;
-	uint32_t pos;
-	uint32_t posLimit;
-	uint32_t streamPos;
-	uint32_t lenLimit;
-
-	uint32_t cyclicBufferPos;
-	uint32_t cyclicBufferSize; /* it must be = (historySize + 1) */
-
-	uint32_t matchMaxLen;
-	CLzRef *hash;
-	CLzRef *son;
-	uint32_t hashMask;
-	uint32_t cutValue;
-
-	uint8_t *bufferBase;
-	ISeqInStream *stream;
-	int streamEndWasReached;
-
-	uint32_t blockSize;
-	uint32_t keepSizeBefore;
-	uint32_t keepSizeAfter;
-
-	uint32_t numHashBytes;
-	int directInput;
-	int btMode;
-	/* int skipModeBits; */
-	int bigHash;
-	uint32_t historySize;
-	uint32_t fixedHashSize;
-	uint32_t hashSizeSum;
-	uint32_t numSons;
-	SRes result;
-	uint32_t crc[256];
-} CMatchFinder;
-
-#define Inline_MatchFinder_GetPointerToCurrentPos(p) ((p)->buffer)
-#define Inline_MatchFinder_GetIndexByte(p, index) ((p)->buffer[(Int32)(index)])
-
-#define Inline_MatchFinder_GetNumAvailableBytes(p) ((p)->streamPos - (p)->pos)
-
-int MatchFinder_NeedMove(CMatchFinder *p);
-uint8_t *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p);
-void MatchFinder_MoveBlock(CMatchFinder *p);
-void MatchFinder_ReadIfRequired(CMatchFinder *p);
-
-void MatchFinder_Construct(CMatchFinder *p);
-
-/* Conditions:
-	 historySize <= 3 GB
-	 keepAddBufferBefore + matchMaxLen + keepAddBufferAfter < 511MB
-*/
-int MatchFinder_Create(CMatchFinder *p, uint32_t historySize, uint32_t keepAddBufferBefore,
-					   uint32_t matchMaxLen, uint32_t keepAddBufferAfter);
-void MatchFinder_Free(CMatchFinder *p);
-void MatchFinder_Normalize3(uint32_t subValue, CLzRef *items, uint32_t numItems);
-void MatchFinder_ReduceOffsets(CMatchFinder *p, uint32_t subValue);
-
-uint32_t *GetMatchesSpec1(uint32_t lenLimit, uint32_t curMatch, uint32_t pos,
-						  const uint8_t *buffer, CLzRef *son, uint32_t _cyclicBufferPos,
-						  uint32_t _cyclicBufferSize, uint32_t _cutValue, uint32_t *distances,
-						  uint32_t maxLen);
-
-/*
-Conditions:
-  Mf_GetNumAvailableBytes_Func must be called before each Mf_GetMatchLen_Func.
-  Mf_GetPointerToCurrentPos_Func's result must be used only before any other function
-*/
-
-typedef void (*Mf_Init_Func)(void *object);
-typedef uint8_t (*Mf_GetIndexByte_Func)(void *object, int32_t index);
-typedef uint32_t (*Mf_GetNumAvailableBytes_Func)(void *object);
-typedef const uint8_t *(*Mf_GetPointerToCurrentPos_Func)(void *object);
-typedef uint32_t (*Mf_GetMatches_Func)(void *object, uint32_t *distances);
-typedef void (*Mf_Skip_Func)(void *object, uint32_t);
-
-typedef struct _IMatchFinder
-{
-	Mf_Init_Func Init;
-	Mf_GetIndexByte_Func GetIndexByte;
-	Mf_GetNumAvailableBytes_Func GetNumAvailableBytes;
-	Mf_GetPointerToCurrentPos_Func GetPointerToCurrentPos;
-	Mf_GetMatches_Func GetMatches;
-	Mf_Skip_Func Skip;
-} IMatchFinder;
-
-void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable);
-
-void MatchFinder_Init(CMatchFinder *p);
-uint32_t Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, uint32_t *distances);
-uint32_t Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, uint32_t *distances);
-void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, uint32_t num);
-void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, uint32_t num);
-
-#endif
diff --git a/depends/lzma/pavlov/LzHash.h b/depends/lzma/pavlov/LzHash.h
deleted file mode 100755
index 22cb0430..00000000
--- a/depends/lzma/pavlov/LzHash.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/* LzHash.h -- HASH functions for LZ algorithms
-2008-10-04 : Igor Pavlov : Public domain */
-
-#pragma once
-
-#define kHash2Size (1 << 10)
-#define kHash3Size (1 << 16)
-#define kHash4Size (1 << 20)
-
-#define kFix3HashSize (kHash2Size)
-#define kFix4HashSize (kHash2Size + kHash3Size)
-#define kFix5HashSize (kHash2Size + kHash3Size + kHash4Size)
-
-#define HASH2_CALC hashValue = cur[0] | ((uint32_t)cur[1] << 8);
-
-#define HASH3_CALC                                                                             \
-	{                                                                                          \
-		uint32_t temp = p->crc[cur[0]] ^ cur[1];                                               \
-		hash2Value = temp & (kHash2Size - 1);                                                  \
-		hashValue = (temp ^ ((uint32_t)cur[2] << 8)) & p->hashMask;                            \
-	}
-
-#define HASH4_CALC                                                                             \
-	{                                                                                          \
-		uint32_t temp = p->crc[cur[0]] ^ cur[1];                                               \
-		hash2Value = temp & (kHash2Size - 1);                                                  \
-		hash3Value = (temp ^ ((uint32_t)cur[2] << 8)) & (kHash3Size - 1);                      \
-		hashValue = (temp ^ ((uint32_t)cur[2] << 8) ^ (p->crc[cur[3]] << 5)) & p->hashMask;    \
-	}
-
-#define HASH5_CALC                                                                             \
-	{                                                                                          \
-		uint32_t temp = p->crc[cur[0]] ^ cur[1];                                               \
-		hash2Value = temp & (kHash2Size - 1);                                                  \
-		hash3Value = (temp ^ ((uint32_t)cur[2] << 8)) & (kHash3Size - 1);                      \
-		hash4Value = (temp ^ ((uint32_t)cur[2] << 8) ^ (p->crc[cur[3]] << 5));                 \
-		hashValue = (hash4Value ^ (p->crc[cur[4]] << 3)) & p->hashMask;                        \
-		hash4Value &= (kHash4Size - 1);                                                        \
-	}
-
-/* #define HASH_ZIP_CALC hashValue = ((cur[0] | ((uint32_t)cur[1] << 8)) ^ p->crc[cur[2]]) &
- * 0xFFFF; */
-#define HASH_ZIP_CALC                                                                          \
-	hashValue = ((cur[2] | ((uint32_t)cur[0] << 8)) ^ p->crc[cur[1]]) & 0xFFFF;
-
-#define MT_HASH2_CALC hash2Value = (p->crc[cur[0]] ^ cur[1]) & (kHash2Size - 1);
-
-#define MT_HASH3_CALC                                                                          \
-	{                                                                                          \
-		uint32_t temp = p->crc[cur[0]] ^ cur[1];                                               \
-		hash2Value = temp & (kHash2Size - 1);                                                  \
-		hash3Value = (temp ^ ((uint32_t)cur[2] << 8)) & (kHash3Size - 1);                      \
-	}
-
-#define MT_HASH4_CALC                                                                          \
-	{                                                                                          \
-		uint32_t temp = p->crc[cur[0]] ^ cur[1];                                               \
-		hash2Value = temp & (kHash2Size - 1);                                                  \
-		hash3Value = (temp ^ ((uint32_t)cur[2] << 8)) & (kHash3Size - 1);                      \
-		hash4Value =                                                                           \
-			(temp ^ ((uint32_t)cur[2] << 8) ^ (p->crc[cur[3]] << 5)) & (kHash4Size - 1);       \
-	}
diff --git a/depends/lzma/pavlov/LzmaDec.c b/depends/lzma/pavlov/LzmaDec.c
deleted file mode 100755
index 1a44dd00..00000000
--- a/depends/lzma/pavlov/LzmaDec.c
+++ /dev/null
@@ -1,1076 +0,0 @@
-/* LzmaDec.c -- LZMA Decoder
-2008-11-06 : Igor Pavlov : Public domain */
-
-#include "LzmaDec.h"
-
-#include <string.h>
-#include <stdlib.h>
-
-#define kNumTopBits 24
-#define kTopValue ((uint32_t)1 << kNumTopBits)
-
-#define kNumBitModelTotalBits 11
-#define kBitModelTotal (1 << kNumBitModelTotalBits)
-#define kNumMoveBits 5
-
-#define RC_INIT_SIZE 5
-
-#define NORMALIZE                                                                              \
-	if (range < kTopValue)                                                                     \
-	{                                                                                          \
-		range <<= 8;                                                                           \
-		code = (code << 8) | (*buf++);                                                         \
-	}
-
-#define IF_BIT_0(p)                                                                            \
-	ttt = *(p);                                                                                \
-	NORMALIZE;                                                                                 \
-	bound = (range >> kNumBitModelTotalBits) * ttt;                                            \
-	if (code < bound)
-#define UPDATE_0(p)                                                                            \
-	range = bound;                                                                             \
-	*(p) = (CLzmaProb)(ttt + ((kBitModelTotal - ttt) >> kNumMoveBits));
-#define UPDATE_1(p)                                                                            \
-	range -= bound;                                                                            \
-	code -= bound;                                                                             \
-	*(p) = (CLzmaProb)(ttt - (ttt >> kNumMoveBits));
-#define GET_BIT2(p, i, A0, A1)                                                                 \
-	IF_BIT_0(p)                                                                                \
-	{                                                                                          \
-		UPDATE_0(p);                                                                           \
-		i = (i + i);                                                                           \
-		A0;                                                                                    \
-	}                                                                                          \
-	else                                                                                       \
-	{                                                                                          \
-		UPDATE_1(p);                                                                           \
-		i = (i + i) + 1;                                                                       \
-		A1;                                                                                    \
-	}
-#define GET_BIT(p, i) GET_BIT2(p, i, ;, ;)
-
-#define TREE_GET_BIT(probs, i)                                                                 \
-	{                                                                                          \
-		GET_BIT((probs + i), i);                                                               \
-	}
-#define TREE_DECODE(probs, limit, i)                                                           \
-	{                                                                                          \
-		i = 1;                                                                                 \
-		do                                                                                     \
-		{                                                                                      \
-			TREE_GET_BIT(probs, i);                                                            \
-		} while (i < limit);                                                                   \
-		i -= limit;                                                                            \
-	}
-
-/* #define _LZMA_SIZE_OPT */
-
-#ifdef _LZMA_SIZE_OPT
-#define TREE_6_DECODE(probs, i) TREE_DECODE(probs, (1 << 6), i)
-#else
-#define TREE_6_DECODE(probs, i)                                                                \
-	{                                                                                          \
-		i = 1;                                                                                 \
-		TREE_GET_BIT(probs, i);                                                                \
-		TREE_GET_BIT(probs, i);                                                                \
-		TREE_GET_BIT(probs, i);                                                                \
-		TREE_GET_BIT(probs, i);                                                                \
-		TREE_GET_BIT(probs, i);                                                                \
-		TREE_GET_BIT(probs, i);                                                                \
-		i -= 0x40;                                                                             \
-	}
-#endif
-
-#define NORMALIZE_CHECK                                                                        \
-	if (range < kTopValue)                                                                     \
-	{                                                                                          \
-		if (buf >= bufLimit)                                                                   \
-			return DUMMY_ERROR;                                                                \
-		range <<= 8;                                                                           \
-		code = (code << 8) | (*buf++);                                                         \
-	}
-
-#define IF_BIT_0_CHECK(p)                                                                      \
-	ttt = *(p);                                                                                \
-	NORMALIZE_CHECK;                                                                           \
-	bound = (range >> kNumBitModelTotalBits) * ttt;                                            \
-	if (code < bound)
-#define UPDATE_0_CHECK range = bound;
-#define UPDATE_1_CHECK                                                                         \
-	range -= bound;                                                                            \
-	code -= bound;
-#define GET_BIT2_CHECK(p, i, A0, A1)                                                           \
-	IF_BIT_0_CHECK(p)                                                                          \
-	{                                                                                          \
-		UPDATE_0_CHECK;                                                                        \
-		i = (i + i);                                                                           \
-		A0;                                                                                    \
-	}                                                                                          \
-	else                                                                                       \
-	{                                                                                          \
-		UPDATE_1_CHECK;                                                                        \
-		i = (i + i) + 1;                                                                       \
-		A1;                                                                                    \
-	}
-#define GET_BIT_CHECK(p, i) GET_BIT2_CHECK(p, i, ;, ;)
-#define TREE_DECODE_CHECK(probs, limit, i)                                                     \
-	{                                                                                          \
-		i = 1;                                                                                 \
-		do                                                                                     \
-		{                                                                                      \
-			GET_BIT_CHECK(probs + i, i)                                                        \
-		} while (i < limit);                                                                   \
-		i -= limit;                                                                            \
-	}
-
-#define kNumPosBitsMax 4
-#define kNumPosStatesMax (1 << kNumPosBitsMax)
-
-#define kLenNumLowBits 3
-#define kLenNumLowSymbols (1 << kLenNumLowBits)
-#define kLenNumMidBits 3
-#define kLenNumMidSymbols (1 << kLenNumMidBits)
-#define kLenNumHighBits 8
-#define kLenNumHighSymbols (1 << kLenNumHighBits)
-
-#define LenChoice 0
-#define LenChoice2 (LenChoice + 1)
-#define LenLow (LenChoice2 + 1)
-#define LenMid (LenLow + (kNumPosStatesMax << kLenNumLowBits))
-#define LenHigh (LenMid + (kNumPosStatesMax << kLenNumMidBits))
-#define kNumLenProbs (LenHigh + kLenNumHighSymbols)
-
-#define kNumStates 12
-#define kNumLitStates 7
-
-#define kStartPosModelIndex 4
-#define kEndPosModelIndex 14
-#define kNumFullDistances (1 << (kEndPosModelIndex >> 1))
-
-#define kNumPosSlotBits 6
-#define kNumLenToPosStates 4
-
-#define kNumAlignBits 4
-#define kAlignTableSize (1 << kNumAlignBits)
-
-#define kMatchMinLen 2
-#define kMatchSpecLenStart                                                                     \
-	(kMatchMinLen + kLenNumLowSymbols + kLenNumMidSymbols + kLenNumHighSymbols)
-
-#define IsMatch 0
-#define IsRep (IsMatch + (kNumStates << kNumPosBitsMax))
-#define IsRepG0 (IsRep + kNumStates)
-#define IsRepG1 (IsRepG0 + kNumStates)
-#define IsRepG2 (IsRepG1 + kNumStates)
-#define IsRep0Long (IsRepG2 + kNumStates)
-#define PosSlot (IsRep0Long + (kNumStates << kNumPosBitsMax))
-#define SpecPos (PosSlot + (kNumLenToPosStates << kNumPosSlotBits))
-#define Align (SpecPos + kNumFullDistances - kEndPosModelIndex)
-#define LenCoder (Align + kAlignTableSize)
-#define RepLenCoder (LenCoder + kNumLenProbs)
-#define Literal (RepLenCoder + kNumLenProbs)
-
-#define LZMA_BASE_SIZE 1846
-#define LZMA_LIT_SIZE 768
-
-#define LzmaProps_GetNumProbs(p)                                                               \
-	((uint32_t)LZMA_BASE_SIZE + (LZMA_LIT_SIZE << ((p)->lc + (p)->lp)))
-
-#if Literal != LZMA_BASE_SIZE
-StopCompilingDueBUG
-#endif
-	static const uint8_t kLiteralNextStates[kNumStates * 2] = {
-		0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 4, 5, 7, 7, 7, 7, 7, 7, 7, 10, 10, 10, 10, 10};
-
-#define LZMA_DIC_MIN (1 << 12)
-
-/* First LZMA-symbol is always decoded.
-And it decodes new LZMA-symbols while (buf < bufLimit), but "buf" is without last normalization
-Out:
-  Result:
-	SZ_OK - OK
-	SZ_ERROR_DATA - Error
-  p->remainLen:
-	< kMatchSpecLenStart : normal remain
-	= kMatchSpecLenStart : finished
-	= kMatchSpecLenStart + 1 : Flush marker
-	= kMatchSpecLenStart + 2 : State Init Marker
-*/
-
-static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, size_t limit, const uint8_t *bufLimit)
-{
-	CLzmaProb *probs = p->probs;
-
-	unsigned state = p->state;
-	uint32_t rep0 = p->reps[0], rep1 = p->reps[1], rep2 = p->reps[2], rep3 = p->reps[3];
-	unsigned pbMask = ((unsigned)1 << (p->prop.pb)) - 1;
-	unsigned lpMask = ((unsigned)1 << (p->prop.lp)) - 1;
-	unsigned lc = p->prop.lc;
-
-	uint8_t *dic = p->dic;
-	size_t dicBufSize = p->dicBufSize;
-	size_t dicPos = p->dicPos;
-
-	uint32_t processedPos = p->processedPos;
-	uint32_t checkDicSize = p->checkDicSize;
-	unsigned len = 0;
-
-	const uint8_t *buf = p->buf;
-	uint32_t range = p->range;
-	uint32_t code = p->code;
-
-	do
-	{
-		CLzmaProb *prob;
-		uint32_t bound;
-		unsigned ttt;
-		unsigned posState = processedPos & pbMask;
-
-		prob = probs + IsMatch + (state << kNumPosBitsMax) + posState;
-		IF_BIT_0(prob)
-		{
-			unsigned symbol;
-			UPDATE_0(prob);
-			prob = probs + Literal;
-			if (checkDicSize != 0 || processedPos != 0)
-				prob += (LZMA_LIT_SIZE *
-						 (((processedPos & lpMask) << lc) +
-						  (dic[(dicPos == 0 ? dicBufSize : dicPos) - 1] >> (8 - lc))));
-
-			if (state < kNumLitStates)
-			{
-				symbol = 1;
-				do
-				{
-					GET_BIT(prob + symbol, symbol)
-				} while (symbol < 0x100);
-			}
-			else
-			{
-				unsigned matchByte =
-					p->dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)];
-				unsigned offs = 0x100;
-				symbol = 1;
-				do
-				{
-					unsigned bit;
-					CLzmaProb *probLit;
-					matchByte <<= 1;
-					bit = (matchByte & offs);
-					probLit = prob + offs + bit + symbol;
-					GET_BIT2(probLit, symbol, offs &= ~bit, offs &= bit)
-				} while (symbol < 0x100);
-			}
-			dic[dicPos++] = (uint8_t)symbol;
-			processedPos++;
-
-			state = kLiteralNextStates[state];
-			/* if (state < 4) state = 0; else if (state < 10) state -= 3; else state -= 6; */
-			continue;
-		}
-		else
-		{
-			UPDATE_1(prob);
-			prob = probs + IsRep + state;
-			IF_BIT_0(prob)
-			{
-				UPDATE_0(prob);
-				state += kNumStates;
-				prob = probs + LenCoder;
-			}
-			else
-			{
-				UPDATE_1(prob);
-				if (checkDicSize == 0 && processedPos == 0)
-					return SZ_ERROR_DATA;
-				prob = probs + IsRepG0 + state;
-				IF_BIT_0(prob)
-				{
-					UPDATE_0(prob);
-					prob = probs + IsRep0Long + (state << kNumPosBitsMax) + posState;
-					IF_BIT_0(prob)
-					{
-						UPDATE_0(prob);
-						dic[dicPos] = dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)];
-						dicPos++;
-						processedPos++;
-						state = state < kNumLitStates ? 9 : 11;
-						continue;
-					}
-					UPDATE_1(prob);
-				}
-				else
-				{
-					uint32_t distance;
-					UPDATE_1(prob);
-					prob = probs + IsRepG1 + state;
-					IF_BIT_0(prob)
-					{
-						UPDATE_0(prob);
-						distance = rep1;
-					}
-					else
-					{
-						UPDATE_1(prob);
-						prob = probs + IsRepG2 + state;
-						IF_BIT_0(prob)
-						{
-							UPDATE_0(prob);
-							distance = rep2;
-						}
-						else
-						{
-							UPDATE_1(prob);
-							distance = rep3;
-							rep3 = rep2;
-						}
-						rep2 = rep1;
-					}
-					rep1 = rep0;
-					rep0 = distance;
-				}
-				state = state < kNumLitStates ? 8 : 11;
-				prob = probs + RepLenCoder;
-			}
-			{
-				unsigned limit, offset;
-				CLzmaProb *probLen = prob + LenChoice;
-				IF_BIT_0(probLen)
-				{
-					UPDATE_0(probLen);
-					probLen = prob + LenLow + (posState << kLenNumLowBits);
-					offset = 0;
-					limit = (1 << kLenNumLowBits);
-				}
-				else
-				{
-					UPDATE_1(probLen);
-					probLen = prob + LenChoice2;
-					IF_BIT_0(probLen)
-					{
-						UPDATE_0(probLen);
-						probLen = prob + LenMid + (posState << kLenNumMidBits);
-						offset = kLenNumLowSymbols;
-						limit = (1 << kLenNumMidBits);
-					}
-					else
-					{
-						UPDATE_1(probLen);
-						probLen = prob + LenHigh;
-						offset = kLenNumLowSymbols + kLenNumMidSymbols;
-						limit = (1 << kLenNumHighBits);
-					}
-				}
-				TREE_DECODE(probLen, limit, len);
-				len += offset;
-			}
-
-			if (state >= kNumStates)
-			{
-				uint32_t distance;
-				prob =
-					probs + PosSlot + ((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1)
-									   << kNumPosSlotBits);
-				TREE_6_DECODE(prob, distance);
-				if (distance >= kStartPosModelIndex)
-				{
-					unsigned posSlot = (unsigned)distance;
-					int numDirectBits = (int)(((distance >> 1) - 1));
-					distance = (2 | (distance & 1));
-					if (posSlot < kEndPosModelIndex)
-					{
-						distance <<= numDirectBits;
-						prob = probs + SpecPos + distance - posSlot - 1;
-						{
-							uint32_t mask = 1;
-							unsigned i = 1;
-							do
-							{
-								GET_BIT2(prob + i, i, ;, distance |= mask);
-								mask <<= 1;
-							} while (--numDirectBits != 0);
-						}
-					}
-					else
-					{
-						numDirectBits -= kNumAlignBits;
-						do
-						{
-							NORMALIZE
-							range >>= 1;
-
-							{
-								uint32_t t;
-								code -= range;
-								t = (0 -
-									 ((uint32_t)code >> 31)); /* (UInt32)((Int32)code >> 31) */
-								distance = (distance << 1) + (t + 1);
-								code += range & t;
-							}
-							/*
-							distance <<= 1;
-							if (code >= range)
-							{
-							  code -= range;
-							  distance |= 1;
-							}
-							*/
-						} while (--numDirectBits != 0);
-						prob = probs + Align;
-						distance <<= kNumAlignBits;
-						{
-							unsigned i = 1;
-							GET_BIT2(prob + i, i, ;, distance |= 1);
-							GET_BIT2(prob + i, i, ;, distance |= 2);
-							GET_BIT2(prob + i, i, ;, distance |= 4);
-							GET_BIT2(prob + i, i, ;, distance |= 8);
-						}
-						if (distance == (uint32_t)0xFFFFFFFF)
-						{
-							len += kMatchSpecLenStart;
-							state -= kNumStates;
-							break;
-						}
-					}
-				}
-				rep3 = rep2;
-				rep2 = rep1;
-				rep1 = rep0;
-				rep0 = distance + 1;
-				if (checkDicSize == 0)
-				{
-					if (distance >= processedPos)
-						return SZ_ERROR_DATA;
-				}
-				else if (distance >= checkDicSize)
-					return SZ_ERROR_DATA;
-				state =
-					(state < kNumStates + kNumLitStates) ? kNumLitStates : kNumLitStates + 3;
-				/* state = kLiteralNextStates[state]; */
-			}
-
-			len += kMatchMinLen;
-
-			if (limit == dicPos)
-				return SZ_ERROR_DATA;
-			{
-				size_t rem = limit - dicPos;
-				unsigned curLen = ((rem < len) ? (unsigned)rem : len);
-				size_t pos = (dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0);
-
-				processedPos += curLen;
-
-				len -= curLen;
-				if (pos + curLen <= dicBufSize)
-				{
-					uint8_t *dest = dic + dicPos;
-					ptrdiff_t src = (ptrdiff_t)pos - (ptrdiff_t)dicPos;
-					const uint8_t *lim = dest + curLen;
-					dicPos += curLen;
-					do
-						*(dest) = (uint8_t) * (dest + src);
-					while (++dest != lim);
-				}
-				else
-				{
-					do
-					{
-						dic[dicPos++] = dic[pos];
-						if (++pos == dicBufSize)
-							pos = 0;
-					} while (--curLen != 0);
-				}
-			}
-		}
-	} while (dicPos < limit && buf < bufLimit);
-	NORMALIZE;
-	p->buf = buf;
-	p->range = range;
-	p->code = code;
-	p->remainLen = len;
-	p->dicPos = dicPos;
-	p->processedPos = processedPos;
-	p->reps[0] = rep0;
-	p->reps[1] = rep1;
-	p->reps[2] = rep2;
-	p->reps[3] = rep3;
-	p->state = state;
-
-	return SZ_OK;
-}
-
-static void MY_FAST_CALL LzmaDec_WriteRem(CLzmaDec *p, size_t limit)
-{
-	if (p->remainLen != 0 && p->remainLen < kMatchSpecLenStart)
-	{
-		uint8_t *dic = p->dic;
-		size_t dicPos = p->dicPos;
-		size_t dicBufSize = p->dicBufSize;
-		unsigned len = p->remainLen;
-		uint32_t rep0 = p->reps[0];
-		if (limit - dicPos < len)
-			len = (unsigned)(limit - dicPos);
-
-		if (p->checkDicSize == 0 && p->prop.dicSize - p->processedPos <= len)
-			p->checkDicSize = p->prop.dicSize;
-
-		p->processedPos += len;
-		p->remainLen -= len;
-		while (len-- != 0)
-		{
-			dic[dicPos] = dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)];
-			dicPos++;
-		}
-		p->dicPos = dicPos;
-	}
-}
-
-static int MY_FAST_CALL LzmaDec_DecodeReal2(CLzmaDec *p, size_t limit, const uint8_t *bufLimit)
-{
-	do
-	{
-		size_t limit2 = limit;
-		if (p->checkDicSize == 0)
-		{
-			uint32_t rem = p->prop.dicSize - p->processedPos;
-			if (limit - p->dicPos > rem)
-				limit2 = p->dicPos + rem;
-		}
-		RINOK(LzmaDec_DecodeReal(p, limit2, bufLimit));
-		if (p->processedPos >= p->prop.dicSize)
-			p->checkDicSize = p->prop.dicSize;
-		LzmaDec_WriteRem(p, limit);
-	} while (p->dicPos < limit && p->buf < bufLimit && p->remainLen < kMatchSpecLenStart);
-
-	if (p->remainLen > kMatchSpecLenStart)
-	{
-		p->remainLen = kMatchSpecLenStart;
-	}
-	return 0;
-}
-
-typedef enum
-{
-	DUMMY_ERROR, /* unexpected end of input stream */
-	DUMMY_LIT,
-	DUMMY_MATCH,
-	DUMMY_REP
-} ELzmaDummy;
-
-static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const uint8_t *buf, size_t inSize)
-{
-	uint32_t range = p->range;
-	uint32_t code = p->code;
-	const uint8_t *bufLimit = buf + inSize;
-	CLzmaProb *probs = p->probs;
-	unsigned state = p->state;
-	ELzmaDummy res;
-
-	{
-		CLzmaProb *prob;
-		uint32_t bound;
-		unsigned ttt;
-		unsigned posState = (p->processedPos) & ((1 << p->prop.pb) - 1);
-
-		prob = probs + IsMatch + (state << kNumPosBitsMax) + posState;
-		IF_BIT_0_CHECK(prob)
-		{
-			UPDATE_0_CHECK
-
-			/* if (bufLimit - buf >= 7) return DUMMY_LIT; */
-
-			prob = probs + Literal;
-			if (p->checkDicSize != 0 || p->processedPos != 0)
-				prob += (LZMA_LIT_SIZE *
-						 ((((p->processedPos) & ((1 << (p->prop.lp)) - 1)) << p->prop.lc) +
-						  (p->dic[(p->dicPos == 0 ? p->dicBufSize : p->dicPos) - 1] >>
-						   (8 - p->prop.lc))));
-
-			if (state < kNumLitStates)
-			{
-				unsigned symbol = 1;
-				do
-				{
-					GET_BIT_CHECK(prob + symbol, symbol)
-				} while (symbol < 0x100);
-			}
-			else
-			{
-				unsigned matchByte = p->dic[p->dicPos - p->reps[0] +
-											((p->dicPos < p->reps[0]) ? p->dicBufSize : 0)];
-				unsigned offs = 0x100;
-				unsigned symbol = 1;
-				do
-				{
-					unsigned bit;
-					CLzmaProb *probLit;
-					matchByte <<= 1;
-					bit = (matchByte & offs);
-					probLit = prob + offs + bit + symbol;
-					GET_BIT2_CHECK(probLit, symbol, offs &= ~bit, offs &= bit)
-				} while (symbol < 0x100);
-			}
-			res = DUMMY_LIT;
-		}
-		else
-		{
-			unsigned len;
-			UPDATE_1_CHECK;
-
-			prob = probs + IsRep + state;
-			IF_BIT_0_CHECK(prob)
-			{
-				UPDATE_0_CHECK;
-				state = 0;
-				prob = probs + LenCoder;
-				res = DUMMY_MATCH;
-			}
-			else
-			{
-				UPDATE_1_CHECK;
-				res = DUMMY_REP;
-				prob = probs + IsRepG0 + state;
-				IF_BIT_0_CHECK(prob)
-				{
-					UPDATE_0_CHECK;
-					prob = probs + IsRep0Long + (state << kNumPosBitsMax) + posState;
-					IF_BIT_0_CHECK(prob)
-					{
-						UPDATE_0_CHECK;
-						NORMALIZE_CHECK;
-						return DUMMY_REP;
-					}
-					else
-					{
-						UPDATE_1_CHECK;
-					}
-				}
-				else
-				{
-					UPDATE_1_CHECK;
-					prob = probs + IsRepG1 + state;
-					IF_BIT_0_CHECK(prob)
-					{
-						UPDATE_0_CHECK;
-					}
-					else
-					{
-						UPDATE_1_CHECK;
-						prob = probs + IsRepG2 + state;
-						IF_BIT_0_CHECK(prob)
-						{
-							UPDATE_0_CHECK;
-						}
-						else
-						{
-							UPDATE_1_CHECK;
-						}
-					}
-				}
-				state = kNumStates;
-				prob = probs + RepLenCoder;
-			}
-			{
-				unsigned limit, offset;
-				CLzmaProb *probLen = prob + LenChoice;
-				IF_BIT_0_CHECK(probLen)
-				{
-					UPDATE_0_CHECK;
-					probLen = prob + LenLow + (posState << kLenNumLowBits);
-					offset = 0;
-					limit = 1 << kLenNumLowBits;
-				}
-				else
-				{
-					UPDATE_1_CHECK;
-					probLen = prob + LenChoice2;
-					IF_BIT_0_CHECK(probLen)
-					{
-						UPDATE_0_CHECK;
-						probLen = prob + LenMid + (posState << kLenNumMidBits);
-						offset = kLenNumLowSymbols;
-						limit = 1 << kLenNumMidBits;
-					}
-					else
-					{
-						UPDATE_1_CHECK;
-						probLen = prob + LenHigh;
-						offset = kLenNumLowSymbols + kLenNumMidSymbols;
-						limit = 1 << kLenNumHighBits;
-					}
-				}
-				TREE_DECODE_CHECK(probLen, limit, len);
-				len += offset;
-			}
-
-			if (state < 4)
-			{
-				unsigned posSlot;
-				prob =
-					probs + PosSlot + ((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1)
-									   << kNumPosSlotBits);
-				TREE_DECODE_CHECK(prob, 1 << kNumPosSlotBits, posSlot);
-				if (posSlot >= kStartPosModelIndex)
-				{
-					int numDirectBits = ((posSlot >> 1) - 1);
-
-					/* if (bufLimit - buf >= 8) return DUMMY_MATCH; */
-
-					if (posSlot < kEndPosModelIndex)
-					{
-						prob = probs + SpecPos + ((2 | (posSlot & 1)) << numDirectBits) -
-							   posSlot - 1;
-					}
-					else
-					{
-						numDirectBits -= kNumAlignBits;
-						do
-						{
-							NORMALIZE_CHECK
-							range >>= 1;
-							code -= range & (((code - range) >> 31) - 1);
-							/* if (code >= range) code -= range; */
-						} while (--numDirectBits != 0);
-						prob = probs + Align;
-						numDirectBits = kNumAlignBits;
-					}
-					{
-						unsigned i = 1;
-						do
-						{
-							GET_BIT_CHECK(prob + i, i);
-						} while (--numDirectBits != 0);
-					}
-				}
-			}
-		}
-	}
-	NORMALIZE_CHECK;
-	return res;
-}
-
-static void LzmaDec_InitRc(CLzmaDec *p, const uint8_t *data)
-{
-	p->code = ((uint32_t)data[1] << 24) | ((uint32_t)data[2] << 16) | ((uint32_t)data[3] << 8) |
-			  ((uint32_t)data[4]);
-	p->range = 0xFFFFFFFF;
-	p->needFlush = 0;
-}
-
-void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState)
-{
-	p->needFlush = 1;
-	p->remainLen = 0;
-	p->tempBufSize = 0;
-
-	if (initDic)
-	{
-		p->processedPos = 0;
-		p->checkDicSize = 0;
-		p->needInitState = 1;
-	}
-	if (initState)
-		p->needInitState = 1;
-}
-
-void LzmaDec_Init(CLzmaDec *p)
-{
-	p->dicPos = 0;
-	LzmaDec_InitDicAndState(p, True, True);
-}
-
-static void LzmaDec_InitStateReal(CLzmaDec *p)
-{
-	uint32_t numProbs = Literal + ((uint32_t)LZMA_LIT_SIZE << (p->prop.lc + p->prop.lp));
-	uint32_t i;
-	CLzmaProb *probs = p->probs;
-	for (i = 0; i < numProbs; i++)
-		probs[i] = kBitModelTotal >> 1;
-	p->reps[0] = p->reps[1] = p->reps[2] = p->reps[3] = 1;
-	p->state = 0;
-	p->needInitState = 0;
-}
-
-SRes LzmaDec_DecodeToDic(CLzmaDec *p, size_t dicLimit, const uint8_t *src, size_t *srcLen,
-						 ELzmaFinishMode finishMode, ELzmaStatus *status)
-{
-	size_t inSize = *srcLen;
-	(*srcLen) = 0;
-	LzmaDec_WriteRem(p, dicLimit);
-
-	*status = LZMA_STATUS_NOT_SPECIFIED;
-
-	while (p->remainLen != kMatchSpecLenStart)
-	{
-		int checkEndMarkNow;
-
-		if (p->needFlush != 0)
-		{
-			for (; inSize > 0 && p->tempBufSize < RC_INIT_SIZE; (*srcLen)++, inSize--)
-				p->tempBuf[p->tempBufSize++] = *src++;
-			if (p->tempBufSize < RC_INIT_SIZE)
-			{
-				*status = LZMA_STATUS_NEEDS_MORE_INPUT;
-				return SZ_OK;
-			}
-			if (p->tempBuf[0] != 0)
-				return SZ_ERROR_DATA;
-
-			LzmaDec_InitRc(p, p->tempBuf);
-			p->tempBufSize = 0;
-		}
-
-		checkEndMarkNow = 0;
-		if (p->dicPos >= dicLimit)
-		{
-			if (p->remainLen == 0 && p->code == 0)
-			{
-				*status = LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK;
-				return SZ_OK;
-			}
-			if (finishMode == LZMA_FINISH_ANY)
-			{
-				*status = LZMA_STATUS_NOT_FINISHED;
-				return SZ_OK;
-			}
-			if (p->remainLen != 0)
-			{
-				*status = LZMA_STATUS_NOT_FINISHED;
-				return SZ_ERROR_DATA;
-			}
-			checkEndMarkNow = 1;
-		}
-
-		if (p->needInitState)
-			LzmaDec_InitStateReal(p);
-
-		if (p->tempBufSize == 0)
-		{
-			size_t processed;
-			const uint8_t *bufLimit;
-			if (inSize < LZMA_REQUIRED_INPUT_MAX || checkEndMarkNow)
-			{
-				int dummyRes = LzmaDec_TryDummy(p, src, inSize);
-				if (dummyRes == DUMMY_ERROR)
-				{
-					memcpy(p->tempBuf, src, inSize);
-					p->tempBufSize = (unsigned)inSize;
-					(*srcLen) += inSize;
-					*status = LZMA_STATUS_NEEDS_MORE_INPUT;
-					return SZ_OK;
-				}
-				if (checkEndMarkNow && dummyRes != DUMMY_MATCH)
-				{
-					*status = LZMA_STATUS_NOT_FINISHED;
-					return SZ_ERROR_DATA;
-				}
-				bufLimit = src;
-			}
-			else
-				bufLimit = src + inSize - LZMA_REQUIRED_INPUT_MAX;
-			p->buf = src;
-			if (LzmaDec_DecodeReal2(p, dicLimit, bufLimit) != 0)
-				return SZ_ERROR_DATA;
-			processed = (size_t)(p->buf - src);
-			(*srcLen) += processed;
-			src += processed;
-			inSize -= processed;
-		}
-		else
-		{
-			unsigned rem = p->tempBufSize, lookAhead = 0;
-			while (rem < LZMA_REQUIRED_INPUT_MAX && lookAhead < inSize)
-				p->tempBuf[rem++] = src[lookAhead++];
-			p->tempBufSize = rem;
-			if (rem < LZMA_REQUIRED_INPUT_MAX || checkEndMarkNow)
-			{
-				int dummyRes = LzmaDec_TryDummy(p, p->tempBuf, rem);
-				if (dummyRes == DUMMY_ERROR)
-				{
-					(*srcLen) += lookAhead;
-					*status = LZMA_STATUS_NEEDS_MORE_INPUT;
-					return SZ_OK;
-				}
-				if (checkEndMarkNow && dummyRes != DUMMY_MATCH)
-				{
-					*status = LZMA_STATUS_NOT_FINISHED;
-					return SZ_ERROR_DATA;
-				}
-			}
-			p->buf = p->tempBuf;
-			if (LzmaDec_DecodeReal2(p, dicLimit, p->buf) != 0)
-				return SZ_ERROR_DATA;
-			lookAhead -= (rem - (unsigned)(p->buf - p->tempBuf));
-			(*srcLen) += lookAhead;
-			src += lookAhead;
-			inSize -= lookAhead;
-			p->tempBufSize = 0;
-		}
-	}
-	if (p->code == 0)
-		*status = LZMA_STATUS_FINISHED_WITH_MARK;
-	return (p->code == 0) ? SZ_OK : SZ_ERROR_DATA;
-}
-
-SRes LzmaDec_DecodeToBuf(CLzmaDec *p, uint8_t *dest, size_t *destLen, const uint8_t *src,
-						 size_t *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status)
-{
-	size_t outSize = *destLen;
-	size_t inSize = *srcLen;
-	*srcLen = *destLen = 0;
-	for (;;)
-	{
-		size_t inSizeCur = inSize, outSizeCur, dicPos;
-		ELzmaFinishMode curFinishMode;
-		SRes res;
-		if (p->dicPos == p->dicBufSize)
-			p->dicPos = 0;
-		dicPos = p->dicPos;
-		if (outSize > p->dicBufSize - dicPos)
-		{
-			outSizeCur = p->dicBufSize;
-			curFinishMode = LZMA_FINISH_ANY;
-		}
-		else
-		{
-			outSizeCur = dicPos + outSize;
-			curFinishMode = finishMode;
-		}
-
-		res = LzmaDec_DecodeToDic(p, outSizeCur, src, &inSizeCur, curFinishMode, status);
-		src += inSizeCur;
-		inSize -= inSizeCur;
-		*srcLen += inSizeCur;
-		outSizeCur = p->dicPos - dicPos;
-		memcpy(dest, p->dic + dicPos, outSizeCur);
-		dest += outSizeCur;
-		outSize -= outSizeCur;
-		*destLen += outSizeCur;
-		if (res != 0)
-			return res;
-		if (outSizeCur == 0 || outSize == 0)
-			return SZ_OK;
-	}
-}
-
-void LzmaDec_FreeProbs(CLzmaDec *p)
-{
-	free(p->probs);
-	p->probs = 0;
-}
-
-static void LzmaDec_FreeDict(CLzmaDec *p)
-{
-	free(p->dic);
-	p->dic = 0;
-}
-
-void LzmaDec_Free(CLzmaDec *p)
-{
-	LzmaDec_FreeProbs(p);
-	LzmaDec_FreeDict(p);
-}
-
-SRes LzmaProps_Decode(CLzmaProps *p, const uint8_t *data, unsigned size)
-{
-	uint32_t dicSize;
-	uint8_t d;
-
-	if (size < LZMA_PROPS_SIZE)
-		return SZ_ERROR_UNSUPPORTED;
-	else
-		dicSize = data[1] | ((uint32_t)data[2] << 8) | ((uint32_t)data[3] << 16) |
-				  ((uint32_t)data[4] << 24);
-
-	if (dicSize < LZMA_DIC_MIN)
-		dicSize = LZMA_DIC_MIN;
-	p->dicSize = dicSize;
-
-	d = data[0];
-	if (d >= (9 * 5 * 5))
-		return SZ_ERROR_UNSUPPORTED;
-
-	p->lc = d % 9;
-	d /= 9;
-	p->pb = d / 5;
-	p->lp = d % 5;
-
-	return SZ_OK;
-}
-
-static SRes LzmaDec_AllocateProbs2(CLzmaDec *p, const CLzmaProps *propNew)
-{
-	uint32_t numProbs = LzmaProps_GetNumProbs(propNew);
-	if (p->probs == 0 || numProbs != p->numProbs)
-	{
-		LzmaDec_FreeProbs(p);
-		p->probs = (CLzmaProb *)malloc(numProbs * sizeof(CLzmaProb));
-		p->numProbs = numProbs;
-		if (p->probs == 0)
-			return SZ_ERROR_MEM;
-	}
-	return SZ_OK;
-}
-
-SRes LzmaDec_AllocateProbs(CLzmaDec *p, const uint8_t *props, unsigned propsSize)
-{
-	CLzmaProps propNew;
-	RINOK(LzmaProps_Decode(&propNew, props, propsSize));
-	RINOK(LzmaDec_AllocateProbs2(p, &propNew));
-	p->prop = propNew;
-	return SZ_OK;
-}
-
-SRes LzmaDec_Allocate(CLzmaDec *p, const uint8_t *props, unsigned propsSize)
-{
-	CLzmaProps propNew;
-	size_t dicBufSize;
-	RINOK(LzmaProps_Decode(&propNew, props, propsSize));
-	RINOK(LzmaDec_AllocateProbs2(p, &propNew));
-	dicBufSize = propNew.dicSize;
-	if (p->dic == 0 || dicBufSize != p->dicBufSize)
-	{
-		LzmaDec_FreeDict(p);
-		p->dic = (uint8_t *)malloc(dicBufSize);
-		if (p->dic == 0)
-		{
-			LzmaDec_FreeProbs(p);
-			return SZ_ERROR_MEM;
-		}
-	}
-	p->dicBufSize = dicBufSize;
-	p->prop = propNew;
-	return SZ_OK;
-}
-
-SRes LzmaDecode(uint8_t *dest, size_t *destLen, const uint8_t *src, size_t *srcLen,
-				const uint8_t *propData, unsigned propSize, ELzmaFinishMode finishMode,
-				ELzmaStatus *status)
-{
-	CLzmaDec p;
-	SRes res;
-	size_t inSize = *srcLen;
-	size_t outSize = *destLen;
-	*srcLen = *destLen = 0;
-	if (inSize < RC_INIT_SIZE)
-		return SZ_ERROR_INPUT_EOF;
-
-	LzmaDec_Construct(&p);
-	res = LzmaDec_AllocateProbs(&p, propData, propSize);
-	if (res != 0)
-		return res;
-	p.dic = dest;
-	p.dicBufSize = outSize;
-
-	LzmaDec_Init(&p);
-
-	*srcLen = inSize;
-	res = LzmaDec_DecodeToDic(&p, outSize, src, srcLen, finishMode, status);
-
-	if (res == SZ_OK && *status == LZMA_STATUS_NEEDS_MORE_INPUT)
-		res = SZ_ERROR_INPUT_EOF;
-
-	(*destLen) = p.dicPos;
-	LzmaDec_FreeProbs(&p);
-	return res;
-}
diff --git a/depends/lzma/pavlov/LzmaDec.h b/depends/lzma/pavlov/LzmaDec.h
deleted file mode 100755
index 25cb7e94..00000000
--- a/depends/lzma/pavlov/LzmaDec.h
+++ /dev/null
@@ -1,220 +0,0 @@
-/* LzmaDec.h -- LZMA Decoder
-2008-10-04 : Igor Pavlov : Public domain */
-
-#pragma once
-
-#include "Types.h"
-
-/* #define _LZMA_PROB32 */
-/* _LZMA_PROB32 can increase the speed on some CPUs,
-   but memory usage for CLzmaDec::probs will be doubled in that case */
-
-#ifdef _LZMA_PROB32
-#define CLzmaProb UInt32
-#else
-#define CLzmaProb uint16_t
-#endif
-
-/* ---------- LZMA Properties ---------- */
-
-#define LZMA_PROPS_SIZE 5
-
-typedef struct _CLzmaProps
-{
-	unsigned lc, lp, pb;
-	uint32_t dicSize;
-} CLzmaProps;
-
-/* LzmaProps_Decode - decodes properties
-Returns:
-  SZ_OK
-  SZ_ERROR_UNSUPPORTED - Unsupported properties
-*/
-
-SRes LzmaProps_Decode(CLzmaProps *p, const uint8_t *data, unsigned size);
-
-/* ---------- LZMA Decoder state ---------- */
-
-/* LZMA_REQUIRED_INPUT_MAX = number of required input bytes for worst case.
-   Num bits = log2((2^11 / 31) ^ 22) + 26 < 134 + 26 = 160; */
-
-#define LZMA_REQUIRED_INPUT_MAX 20
-
-typedef struct
-{
-	CLzmaProps prop;
-	CLzmaProb *probs;
-	uint8_t *dic;
-	const uint8_t *buf;
-	uint32_t range, code;
-	size_t dicPos;
-	size_t dicBufSize;
-	uint32_t processedPos;
-	uint32_t checkDicSize;
-	unsigned state;
-	uint32_t reps[4];
-	unsigned remainLen;
-	int needFlush;
-	int needInitState;
-	uint32_t numProbs;
-	unsigned tempBufSize;
-	uint8_t tempBuf[LZMA_REQUIRED_INPUT_MAX];
-} CLzmaDec;
-
-#define LzmaDec_Construct(p)                                                                   \
-	{                                                                                          \
-		(p)->dic = 0;                                                                          \
-		(p)->probs = 0;                                                                        \
-	}
-
-void LzmaDec_Init(CLzmaDec *p);
-
-/* There are two types of LZMA streams:
-	 0) Stream with end mark. That end mark adds about 6 bytes to compressed size.
-	 1) Stream without end mark. You must know exact uncompressed size to decompress such
-   stream. */
-
-typedef enum
-{
-	LZMA_FINISH_ANY, /* finish at any point */
-	LZMA_FINISH_END  /* block must be finished at the end */
-} ELzmaFinishMode;
-
-/* ELzmaFinishMode has meaning only if the decoding reaches output limit !!!
-
-   You must use LZMA_FINISH_END, when you know that current output buffer
-   covers last bytes of block. In other cases you must use LZMA_FINISH_ANY.
-
-   If LZMA decoder sees end marker before reaching output limit, it returns SZ_OK,
-   and output value of destLen will be less than output buffer size limit.
-   You can check status result also.
-
-   You can use multiple checks to test data integrity after full decompression:
-	 1) Check Result and "status" variable.
-	 2) Check that output(destLen) = uncompressedSize, if you know real uncompressedSize.
-	 3) Check that output(srcLen) = compressedSize, if you know real compressedSize.
-		You must use correct finish mode in that case. */
-
-typedef enum
-{
-	LZMA_STATUS_NOT_SPECIFIED,			  /* use main error code instead */
-	LZMA_STATUS_FINISHED_WITH_MARK,		 /* stream was finished with end mark. */
-	LZMA_STATUS_NOT_FINISHED,			   /* stream was not finished */
-	LZMA_STATUS_NEEDS_MORE_INPUT,		   /* you must provide more input bytes */
-	LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK /* there is probability that stream was finished
-											   without end mark */
-} ELzmaStatus;
-
-/* ELzmaStatus is used only as output value for function call */
-
-/* ---------- Interfaces ---------- */
-
-/* There are 3 levels of interfaces:
-	 1) Dictionary Interface
-	 2) Buffer Interface
-	 3) One Call Interface
-   You can select any of these interfaces, but don't mix functions from different
-   groups for same object. */
-
-/* There are two variants to allocate state for Dictionary Interface:
-	 1) LzmaDec_Allocate / LzmaDec_Free
-	 2) LzmaDec_AllocateProbs / LzmaDec_FreeProbs
-   You can use variant 2, if you set dictionary buffer manually.
-   For Buffer Interface you must always use variant 1.
-
-LzmaDec_Allocate* can return:
-  SZ_OK
-  SZ_ERROR_MEM         - Memory allocation error
-  SZ_ERROR_UNSUPPORTED - Unsupported properties
-*/
-
-SRes LzmaDec_AllocateProbs(CLzmaDec *p, const uint8_t *props, unsigned propsSize);
-void LzmaDec_FreeProbs(CLzmaDec *p);
-
-SRes LzmaDec_Allocate(CLzmaDec *state, const uint8_t *prop, unsigned propsSize);
-void LzmaDec_Free(CLzmaDec *state);
-
-/* ---------- Dictionary Interface ---------- */
-
-/* You can use it, if you want to eliminate the overhead for data copying from
-   dictionary to some other external buffer.
-   You must work with CLzmaDec variables directly in this interface.
-
-   STEPS:
-	 LzmaDec_Constr()
-	 LzmaDec_Allocate()
-	 for (each new stream)
-	 {
-	   LzmaDec_Init()
-	   while (it needs more decompression)
-	   {
-		 LzmaDec_DecodeToDic()
-		 use data from CLzmaDec::dic and update CLzmaDec::dicPos
-	   }
-	 }
-	 LzmaDec_Free()
-*/
-
-/* LzmaDec_DecodeToDic
-
-   The decoding to internal dictionary buffer (CLzmaDec::dic).
-   You must manually update CLzmaDec::dicPos, if it reaches CLzmaDec::dicBufSize !!!
-
-finishMode:
-  It has meaning only if the decoding reaches output limit (dicLimit).
-  LZMA_FINISH_ANY - Decode just dicLimit bytes.
-  LZMA_FINISH_END - Stream must be finished after dicLimit.
-
-Returns:
-  SZ_OK
-	status:
-	  LZMA_STATUS_FINISHED_WITH_MARK
-	  LZMA_STATUS_NOT_FINISHED
-	  LZMA_STATUS_NEEDS_MORE_INPUT
-	  LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK
-  SZ_ERROR_DATA - Data error
-*/
-
-SRes LzmaDec_DecodeToDic(CLzmaDec *p, size_t dicLimit, const uint8_t *src, size_t *srcLen,
-						 ELzmaFinishMode finishMode, ELzmaStatus *status);
-
-/* ---------- Buffer Interface ---------- */
-
-/* It's zlib-like interface.
-   See LzmaDec_DecodeToDic description for information about STEPS and return results,
-   but you must use LzmaDec_DecodeToBuf instead of LzmaDec_DecodeToDic and you don't need
-   to work with CLzmaDec variables manually.
-
-finishMode:
-  It has meaning only if the decoding reaches output limit (*destLen).
-  LZMA_FINISH_ANY - Decode just destLen bytes.
-  LZMA_FINISH_END - Stream must be finished after (*destLen).
-*/
-
-SRes LzmaDec_DecodeToBuf(CLzmaDec *p, uint8_t *dest, size_t *destLen, const uint8_t *src,
-						 size_t *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status);
-
-/* ---------- One Call Interface ---------- */
-
-/* LzmaDecode
-
-finishMode:
-  It has meaning only if the decoding reaches output limit (*destLen).
-  LZMA_FINISH_ANY - Decode just destLen bytes.
-  LZMA_FINISH_END - Stream must be finished after (*destLen).
-
-Returns:
-  SZ_OK
-	status:
-	  LZMA_STATUS_FINISHED_WITH_MARK
-	  LZMA_STATUS_NOT_FINISHED
-	  LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK
-  SZ_ERROR_DATA - Data error
-  SZ_ERROR_MEM  - Memory allocation error
-  SZ_ERROR_UNSUPPORTED - Unsupported properties
-  SZ_ERROR_INPUT_EOF - It needs more bytes in input buffer (src).
-*/
-
-SRes LzmaDecode(uint8_t *dest, size_t *destLen, const uint8_t *src, size_t *srcLen,
-				const uint8_t *propData, unsigned propSize, ELzmaFinishMode finishMode,
-				ELzmaStatus *status);
diff --git a/depends/lzma/pavlov/LzmaEnc.c b/depends/lzma/pavlov/LzmaEnc.c
deleted file mode 100755
index ac34eb45..00000000
--- a/depends/lzma/pavlov/LzmaEnc.c
+++ /dev/null
@@ -1,2349 +0,0 @@
-/* LzmaEnc.c -- LZMA Encoder
-2008-10-04 : Igor Pavlov : Public domain */
-
-#include <string.h>
-#include <stdlib.h>
-
-/* #define SHOW_STAT */
-/* #define SHOW_STAT2 */
-
-#if defined(SHOW_STAT) || defined(SHOW_STAT2)
-#include <stdio.h>
-#endif
-
-#include "LzmaEnc.h"
-
-#include "LzFind.h"
-#ifdef COMPRESS_MF_MT
-#include "LzFindMt.h"
-#endif
-
-#ifdef SHOW_STAT
-static int ttt = 0;
-#endif
-
-#define kBlockSizeMax ((1 << LZMA_NUM_BLOCK_SIZE_BITS) - 1)
-
-#define kBlockSize (9 << 10)
-#define kUnpackBlockSize (1 << 18)
-#define kMatchArraySize (1 << 21)
-#define kMatchRecordMaxSize ((LZMA_MATCH_LEN_MAX * 2 + 3) * LZMA_MATCH_LEN_MAX)
-
-#define kNumMaxDirectBits (31)
-
-#define kNumTopBits 24
-#define kTopValue ((uint32_t)1 << kNumTopBits)
-
-#define kNumBitModelTotalBits 11
-#define kBitModelTotal (1 << kNumBitModelTotalBits)
-#define kNumMoveBits 5
-#define kProbInitValue (kBitModelTotal >> 1)
-
-#define kNumMoveReducingBits 4
-#define kNumBitPriceShiftBits 4
-#define kBitPrice (1 << kNumBitPriceShiftBits)
-
-void LzmaEncProps_Init(CLzmaEncProps *p)
-{
-	p->level = 5;
-	p->dictSize = p->mc = 0;
-	p->lc = p->lp = p->pb = p->algo = p->fb = p->btMode = p->numHashBytes = p->numThreads = -1;
-	p->writeEndMark = 0;
-}
-
-void LzmaEncProps_Normalize(CLzmaEncProps *p)
-{
-	int level = p->level;
-	if (level < 0)
-		level = 5;
-	p->level = level;
-	if (p->dictSize == 0)
-		p->dictSize =
-			(level <= 5 ? (1 << (level * 2 + 14)) : (level == 6 ? (1 << 25) : (1 << 26)));
-	if (p->lc < 0)
-		p->lc = 3;
-	if (p->lp < 0)
-		p->lp = 0;
-	if (p->pb < 0)
-		p->pb = 2;
-	if (p->algo < 0)
-		p->algo = (level < 5 ? 0 : 1);
-	if (p->fb < 0)
-		p->fb = (level < 7 ? 32 : 64);
-	if (p->btMode < 0)
-		p->btMode = (p->algo == 0 ? 0 : 1);
-	if (p->numHashBytes < 0)
-		p->numHashBytes = 4;
-	if (p->mc == 0)
-		p->mc = (16 + (p->fb >> 1)) >> (p->btMode ? 0 : 1);
-	if (p->numThreads < 0)
-		p->numThreads = ((p->btMode && p->algo) ? 2 : 1);
-}
-
-uint32_t LzmaEncProps_GetDictSize(const CLzmaEncProps *props2)
-{
-	CLzmaEncProps props = *props2;
-	LzmaEncProps_Normalize(&props);
-	return props.dictSize;
-}
-
-/* #define LZMA_LOG_BSR */
-/* Define it for Intel's CPU */
-
-#ifdef LZMA_LOG_BSR
-
-#define kDicLogSizeMaxCompress 30
-
-#define BSR2_RET(pos, res)                                                                     \
-	{                                                                                          \
-		unsigned long i;                                                                       \
-		_BitScanReverse(&i, (pos));                                                            \
-		res = (i + i) + ((pos >> (i - 1)) & 1);                                                \
-	}
-
-uint32_t GetPosSlot1(uint32_t pos)
-{
-	uint32_t res;
-	BSR2_RET(pos, res);
-	return res;
-}
-#define GetPosSlot2(pos, res)                                                                  \
-	{                                                                                          \
-		BSR2_RET(pos, res);                                                                    \
-	}
-#define GetPosSlot(pos, res)                                                                   \
-	{                                                                                          \
-		if (pos < 2)                                                                           \
-			res = pos;                                                                         \
-		else                                                                                   \
-			BSR2_RET(pos, res);                                                                \
-	}
-
-#else
-
-#define kNumLogBits (9 + (int)sizeof(size_t) / 2)
-#define kDicLogSizeMaxCompress ((kNumLogBits - 1) * 2 + 7)
-
-void LzmaEnc_FastPosInit(uint8_t *g_FastPos)
-{
-	int c = 2, slotFast;
-	g_FastPos[0] = 0;
-	g_FastPos[1] = 1;
-
-	for (slotFast = 2; slotFast < kNumLogBits * 2; slotFast++)
-	{
-		uint32_t k = (1 << ((slotFast >> 1) - 1));
-		uint32_t j;
-		for (j = 0; j < k; j++, c++)
-			g_FastPos[c] = (uint8_t)slotFast;
-	}
-}
-
-#define BSR2_RET(pos, res)                                                                     \
-	{                                                                                          \
-		uint32_t i = 6 + ((kNumLogBits - 1) &                                                  \
-						  (0 - (((((uint32_t)1 << (kNumLogBits + 6)) - 1) - pos) >> 31)));     \
-		res = p->g_FastPos[pos >> i] + (i * 2);                                                \
-	}
-/*
-#define BSR2_RET(pos, res) { res = (pos < (1 << (kNumLogBits + 6))) ? \
-  p->g_FastPos[pos >> 6] + 12 : \
-  p->g_FastPos[pos >> (6 + kNumLogBits - 1)] + (6 + (kNumLogBits - 1)) * 2; }
-*/
-
-#define GetPosSlot1(pos) p->g_FastPos[pos]
-#define GetPosSlot2(pos, res)                                                                  \
-	{                                                                                          \
-		BSR2_RET(pos, res);                                                                    \
-	}
-#define GetPosSlot(pos, res)                                                                   \
-	{                                                                                          \
-		if (pos < kNumFullDistances)                                                           \
-			res = p->g_FastPos[pos];                                                           \
-		else                                                                                   \
-			BSR2_RET(pos, res);                                                                \
-	}
-
-#endif
-
-#define LZMA_NUM_REPS 4
-
-typedef unsigned CState;
-
-typedef struct _COptimal
-{
-	uint32_t price;
-
-	CState state;
-	int prev1IsChar;
-	int prev2;
-
-	uint32_t posPrev2;
-	uint32_t backPrev2;
-
-	uint32_t posPrev;
-	uint32_t backPrev;
-	uint32_t backs[LZMA_NUM_REPS];
-} COptimal;
-
-#define kNumOpts (1 << 12)
-
-#define kNumLenToPosStates 4
-#define kNumPosSlotBits 6
-#define kDicLogSizeMin 0
-#define kDicLogSizeMax 32
-#define kDistTableSizeMax (kDicLogSizeMax * 2)
-
-#define kNumAlignBits 4
-#define kAlignTableSize (1 << kNumAlignBits)
-#define kAlignMask (kAlignTableSize - 1)
-
-#define kStartPosModelIndex 4
-#define kEndPosModelIndex 14
-#define kNumPosModels (kEndPosModelIndex - kStartPosModelIndex)
-
-#define kNumFullDistances (1 << (kEndPosModelIndex / 2))
-
-#ifdef _LZMA_PROB32
-#define CLzmaProb uint32_t
-#else
-#define CLzmaProb uint16_t
-#endif
-
-#define LZMA_PB_MAX 4
-#define LZMA_LC_MAX 8
-#define LZMA_LP_MAX 4
-
-#define LZMA_NUM_PB_STATES_MAX (1 << LZMA_PB_MAX)
-
-#define kLenNumLowBits 3
-#define kLenNumLowSymbols (1 << kLenNumLowBits)
-#define kLenNumMidBits 3
-#define kLenNumMidSymbols (1 << kLenNumMidBits)
-#define kLenNumHighBits 8
-#define kLenNumHighSymbols (1 << kLenNumHighBits)
-
-#define kLenNumSymbolsTotal (kLenNumLowSymbols + kLenNumMidSymbols + kLenNumHighSymbols)
-
-#define LZMA_MATCH_LEN_MIN 2
-#define LZMA_MATCH_LEN_MAX (LZMA_MATCH_LEN_MIN + kLenNumSymbolsTotal - 1)
-
-#define kNumStates 12
-
-typedef struct
-{
-	CLzmaProb choice;
-	CLzmaProb choice2;
-	CLzmaProb low[LZMA_NUM_PB_STATES_MAX << kLenNumLowBits];
-	CLzmaProb mid[LZMA_NUM_PB_STATES_MAX << kLenNumMidBits];
-	CLzmaProb high[kLenNumHighSymbols];
-} CLenEnc;
-
-typedef struct
-{
-	CLenEnc p;
-	uint32_t prices[LZMA_NUM_PB_STATES_MAX][kLenNumSymbolsTotal];
-	uint32_t tableSize;
-	uint32_t counters[LZMA_NUM_PB_STATES_MAX];
-} CLenPriceEnc;
-
-typedef struct _CRangeEnc
-{
-	uint32_t range;
-	uint8_t cache;
-	uint64_t low;
-	uint64_t cacheSize;
-	uint8_t *buf;
-	uint8_t *bufLim;
-	uint8_t *bufBase;
-	ISeqOutStream *outStream;
-	uint64_t processed;
-	SRes res;
-} CRangeEnc;
-
-typedef struct _CSeqInStreamBuf
-{
-	ISeqInStream funcTable;
-	const uint8_t *data;
-	size_t rem;
-} CSeqInStreamBuf;
-
-static SRes MyRead(void *pp, void *data, size_t *size)
-{
-	size_t curSize = *size;
-	CSeqInStreamBuf *p = (CSeqInStreamBuf *)pp;
-	if (p->rem < curSize)
-		curSize = p->rem;
-	memcpy(data, p->data, curSize);
-	p->rem -= curSize;
-	p->data += curSize;
-	*size = curSize;
-	return SZ_OK;
-}
-
-typedef struct
-{
-	CLzmaProb *litProbs;
-
-	CLzmaProb isMatch[kNumStates][LZMA_NUM_PB_STATES_MAX];
-	CLzmaProb isRep[kNumStates];
-	CLzmaProb isRepG0[kNumStates];
-	CLzmaProb isRepG1[kNumStates];
-	CLzmaProb isRepG2[kNumStates];
-	CLzmaProb isRep0Long[kNumStates][LZMA_NUM_PB_STATES_MAX];
-
-	CLzmaProb posSlotEncoder[kNumLenToPosStates][1 << kNumPosSlotBits];
-	CLzmaProb posEncoders[kNumFullDistances - kEndPosModelIndex];
-	CLzmaProb posAlignEncoder[1 << kNumAlignBits];
-
-	CLenPriceEnc lenEnc;
-	CLenPriceEnc repLenEnc;
-
-	uint32_t reps[LZMA_NUM_REPS];
-	uint32_t state;
-} CSaveState;
-
-typedef struct _CLzmaEnc
-{
-	IMatchFinder matchFinder;
-	void *matchFinderObj;
-
-#ifdef COMPRESS_MF_MT
-	Bool mtMode;
-	CMatchFinderMt matchFinderMt;
-#endif
-
-	CMatchFinder matchFinderBase;
-
-#ifdef COMPRESS_MF_MT
-	Byte pad[128];
-#endif
-
-	uint32_t optimumEndIndex;
-	uint32_t optimumCurrentIndex;
-
-	uint32_t longestMatchLength;
-	uint32_t numPairs;
-	uint32_t numAvail;
-	COptimal opt[kNumOpts];
-
-#ifndef LZMA_LOG_BSR
-	uint8_t g_FastPos[1 << kNumLogBits];
-#endif
-
-	uint32_t ProbPrices[kBitModelTotal >> kNumMoveReducingBits];
-	uint32_t matches[LZMA_MATCH_LEN_MAX * 2 + 2 + 1];
-	uint32_t numFastBytes;
-	uint32_t additionalOffset;
-	uint32_t reps[LZMA_NUM_REPS];
-	uint32_t state;
-
-	uint32_t posSlotPrices[kNumLenToPosStates][kDistTableSizeMax];
-	uint32_t distancesPrices[kNumLenToPosStates][kNumFullDistances];
-	uint32_t alignPrices[kAlignTableSize];
-	uint32_t alignPriceCount;
-
-	uint32_t distTableSize;
-
-	unsigned lc, lp, pb;
-	unsigned lpMask, pbMask;
-
-	CLzmaProb *litProbs;
-
-	CLzmaProb isMatch[kNumStates][LZMA_NUM_PB_STATES_MAX];
-	CLzmaProb isRep[kNumStates];
-	CLzmaProb isRepG0[kNumStates];
-	CLzmaProb isRepG1[kNumStates];
-	CLzmaProb isRepG2[kNumStates];
-	CLzmaProb isRep0Long[kNumStates][LZMA_NUM_PB_STATES_MAX];
-
-	CLzmaProb posSlotEncoder[kNumLenToPosStates][1 << kNumPosSlotBits];
-	CLzmaProb posEncoders[kNumFullDistances - kEndPosModelIndex];
-	CLzmaProb posAlignEncoder[1 << kNumAlignBits];
-
-	CLenPriceEnc lenEnc;
-	CLenPriceEnc repLenEnc;
-
-	unsigned lclp;
-
-	Bool fastMode;
-
-	CRangeEnc rc;
-
-	Bool writeEndMark;
-	uint64_t nowPos64;
-	uint32_t matchPriceCount;
-	Bool finished;
-	Bool multiThread;
-
-	SRes result;
-	uint32_t dictSize;
-	uint32_t matchFinderCycles;
-
-	ISeqInStream *inStream;
-	CSeqInStreamBuf seqBufInStream;
-
-	CSaveState saveState;
-} CLzmaEnc;
-
-void LzmaEnc_SaveState(CLzmaEncHandle pp)
-{
-	CLzmaEnc *p = (CLzmaEnc *)pp;
-	CSaveState *dest = &p->saveState;
-	int i;
-	dest->lenEnc = p->lenEnc;
-	dest->repLenEnc = p->repLenEnc;
-	dest->state = p->state;
-
-	for (i = 0; i < kNumStates; i++)
-	{
-		memcpy(dest->isMatch[i], p->isMatch[i], sizeof(p->isMatch[i]));
-		memcpy(dest->isRep0Long[i], p->isRep0Long[i], sizeof(p->isRep0Long[i]));
-	}
-	for (i = 0; i < kNumLenToPosStates; i++)
-		memcpy(dest->posSlotEncoder[i], p->posSlotEncoder[i], sizeof(p->posSlotEncoder[i]));
-	memcpy(dest->isRep, p->isRep, sizeof(p->isRep));
-	memcpy(dest->isRepG0, p->isRepG0, sizeof(p->isRepG0));
-	memcpy(dest->isRepG1, p->isRepG1, sizeof(p->isRepG1));
-	memcpy(dest->isRepG2, p->isRepG2, sizeof(p->isRepG2));
-	memcpy(dest->posEncoders, p->posEncoders, sizeof(p->posEncoders));
-	memcpy(dest->posAlignEncoder, p->posAlignEncoder, sizeof(p->posAlignEncoder));
-	memcpy(dest->reps, p->reps, sizeof(p->reps));
-	memcpy(dest->litProbs, p->litProbs, (0x300 << p->lclp) * sizeof(CLzmaProb));
-}
-
-void LzmaEnc_RestoreState(CLzmaEncHandle pp)
-{
-	CLzmaEnc *dest = (CLzmaEnc *)pp;
-	const CSaveState *p = &dest->saveState;
-	int i;
-	dest->lenEnc = p->lenEnc;
-	dest->repLenEnc = p->repLenEnc;
-	dest->state = p->state;
-
-	for (i = 0; i < kNumStates; i++)
-	{
-		memcpy(dest->isMatch[i], p->isMatch[i], sizeof(p->isMatch[i]));
-		memcpy(dest->isRep0Long[i], p->isRep0Long[i], sizeof(p->isRep0Long[i]));
-	}
-	for (i = 0; i < kNumLenToPosStates; i++)
-		memcpy(dest->posSlotEncoder[i], p->posSlotEncoder[i], sizeof(p->posSlotEncoder[i]));
-	memcpy(dest->isRep, p->isRep, sizeof(p->isRep));
-	memcpy(dest->isRepG0, p->isRepG0, sizeof(p->isRepG0));
-	memcpy(dest->isRepG1, p->isRepG1, sizeof(p->isRepG1));
-	memcpy(dest->isRepG2, p->isRepG2, sizeof(p->isRepG2));
-	memcpy(dest->posEncoders, p->posEncoders, sizeof(p->posEncoders));
-	memcpy(dest->posAlignEncoder, p->posAlignEncoder, sizeof(p->posAlignEncoder));
-	memcpy(dest->reps, p->reps, sizeof(p->reps));
-	memcpy(dest->litProbs, p->litProbs, (0x300 << dest->lclp) * sizeof(CLzmaProb));
-}
-
-SRes LzmaEnc_SetProps(CLzmaEncHandle pp, const CLzmaEncProps *props2)
-{
-	CLzmaEnc *p = (CLzmaEnc *)pp;
-	CLzmaEncProps props = *props2;
-	LzmaEncProps_Normalize(&props);
-
-	if (props.lc > LZMA_LC_MAX || props.lp > LZMA_LP_MAX || props.pb > LZMA_PB_MAX ||
-		props.dictSize > (1 << kDicLogSizeMaxCompress) || props.dictSize > (1 << 30))
-		return SZ_ERROR_PARAM;
-	p->dictSize = props.dictSize;
-	p->matchFinderCycles = props.mc;
-	{
-		unsigned fb = props.fb;
-		if (fb < 5)
-			fb = 5;
-		if (fb > LZMA_MATCH_LEN_MAX)
-			fb = LZMA_MATCH_LEN_MAX;
-		p->numFastBytes = fb;
-	}
-	p->lc = props.lc;
-	p->lp = props.lp;
-	p->pb = props.pb;
-	p->fastMode = (props.algo == 0);
-	p->matchFinderBase.btMode = props.btMode;
-	{
-		uint32_t numHashBytes = 4;
-		if (props.btMode)
-		{
-			if (props.numHashBytes < 2)
-				numHashBytes = 2;
-			else if (props.numHashBytes < 4)
-				numHashBytes = props.numHashBytes;
-		}
-		p->matchFinderBase.numHashBytes = numHashBytes;
-	}
-
-	p->matchFinderBase.cutValue = props.mc;
-
-	p->writeEndMark = props.writeEndMark;
-
-#ifdef COMPRESS_MF_MT
-	/*
-	if (newMultiThread != _multiThread)
-	{
-	  ReleaseMatchFinder();
-	  _multiThread = newMultiThread;
-	}
-	*/
-	p->multiThread = (props.numThreads > 1);
-#endif
-
-	return SZ_OK;
-}
-
-static const int kLiteralNextStates[kNumStates] = {0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 4, 5};
-static const int kMatchNextStates[kNumStates] = {7, 7, 7, 7, 7, 7, 7, 10, 10, 10, 10, 10};
-static const int kRepNextStates[kNumStates] = {8, 8, 8, 8, 8, 8, 8, 11, 11, 11, 11, 11};
-static const int kShortRepNextStates[kNumStates] = {9, 9, 9, 9, 9, 9, 9, 11, 11, 11, 11, 11};
-
-#define IsCharState(s) ((s) < 7)
-
-#define GetLenToPosState(len)                                                                  \
-	(((len) < kNumLenToPosStates + 1) ? (len) - 2 : kNumLenToPosStates - 1)
-
-#define kInfinityPrice (1 << 30)
-
-static void RangeEnc_Construct(CRangeEnc *p)
-{
-	p->outStream = 0;
-	p->bufBase = 0;
-}
-
-#define RangeEnc_GetProcessed(p) ((p)->processed + ((p)->buf - (p)->bufBase) + (p)->cacheSize)
-
-#define RC_BUF_SIZE (1 << 16)
-static int RangeEnc_Alloc(CRangeEnc *p)
-{
-	if (p->bufBase == 0)
-	{
-		p->bufBase = malloc(RC_BUF_SIZE);
-		if (p->bufBase == 0)
-			return 0;
-		p->bufLim = p->bufBase + RC_BUF_SIZE;
-	}
-	return 1;
-}
-
-static void RangeEnc_Free(CRangeEnc *p)
-{
-	free(p->bufBase);
-	p->bufBase = 0;
-}
-
-static void RangeEnc_Init(CRangeEnc *p)
-{
-	/* Stream.Init(); */
-	p->low = 0;
-	p->range = 0xFFFFFFFF;
-	p->cacheSize = 1;
-	p->cache = 0;
-
-	p->buf = p->bufBase;
-
-	p->processed = 0;
-	p->res = SZ_OK;
-}
-
-static void RangeEnc_FlushStream(CRangeEnc *p)
-{
-	size_t num;
-	if (p->res != SZ_OK)
-		return;
-	num = p->buf - p->bufBase;
-	if (num != p->outStream->Write(p->outStream, p->bufBase, num))
-		p->res = SZ_ERROR_WRITE;
-	p->processed += num;
-	p->buf = p->bufBase;
-}
-
-static void MY_FAST_CALL RangeEnc_ShiftLow(CRangeEnc *p)
-{
-	if ((uint32_t)p->low < (uint32_t)0xFF000000 || (int)(p->low >> 32) != 0)
-	{
-		uint8_t temp = p->cache;
-		do
-		{
-			uint8_t *buf = p->buf;
-			*buf++ = (uint8_t)(temp + (uint8_t)(p->low >> 32));
-			p->buf = buf;
-			if (buf == p->bufLim)
-				RangeEnc_FlushStream(p);
-			temp = 0xFF;
-		} while (--p->cacheSize != 0);
-		p->cache = (uint8_t)((uint32_t)p->low >> 24);
-	}
-	p->cacheSize++;
-	p->low = (uint32_t)p->low << 8;
-}
-
-static void RangeEnc_FlushData(CRangeEnc *p)
-{
-	int i;
-	for (i = 0; i < 5; i++)
-		RangeEnc_ShiftLow(p);
-}
-
-static void RangeEnc_EncodeDirectBits(CRangeEnc *p, uint32_t value, int numBits)
-{
-	do
-	{
-		p->range >>= 1;
-		p->low += p->range & (0 - ((value >> --numBits) & 1));
-		if (p->range < kTopValue)
-		{
-			p->range <<= 8;
-			RangeEnc_ShiftLow(p);
-		}
-	} while (numBits != 0);
-}
-
-static void RangeEnc_EncodeBit(CRangeEnc *p, CLzmaProb *prob, uint32_t symbol)
-{
-	uint32_t ttt = *prob;
-	uint32_t newBound = (p->range >> kNumBitModelTotalBits) * ttt;
-	if (symbol == 0)
-	{
-		p->range = newBound;
-		ttt += (kBitModelTotal - ttt) >> kNumMoveBits;
-	}
-	else
-	{
-		p->low += newBound;
-		p->range -= newBound;
-		ttt -= ttt >> kNumMoveBits;
-	}
-	*prob = (CLzmaProb)ttt;
-	if (p->range < kTopValue)
-	{
-		p->range <<= 8;
-		RangeEnc_ShiftLow(p);
-	}
-}
-
-static void LitEnc_Encode(CRangeEnc *p, CLzmaProb *probs, uint32_t symbol)
-{
-	symbol |= 0x100;
-	do
-	{
-		RangeEnc_EncodeBit(p, probs + (symbol >> 8), (symbol >> 7) & 1);
-		symbol <<= 1;
-	} while (symbol < 0x10000);
-}
-
-static void LitEnc_EncodeMatched(CRangeEnc *p, CLzmaProb *probs, uint32_t symbol,
-								 uint32_t matchByte)
-{
-	uint32_t offs = 0x100;
-	symbol |= 0x100;
-	do
-	{
-		matchByte <<= 1;
-		RangeEnc_EncodeBit(p, probs + (offs + (matchByte & offs) + (symbol >> 8)),
-						   (symbol >> 7) & 1);
-		symbol <<= 1;
-		offs &= ~(matchByte ^ symbol);
-	} while (symbol < 0x10000);
-}
-
-void LzmaEnc_InitPriceTables(uint32_t *ProbPrices)
-{
-	uint32_t i;
-	for (i = (1 << kNumMoveReducingBits) / 2; i < kBitModelTotal;
-		 i += (1 << kNumMoveReducingBits))
-	{
-		const int kCyclesBits = kNumBitPriceShiftBits;
-		uint32_t w = i;
-		uint32_t bitCount = 0;
-		int j;
-		for (j = 0; j < kCyclesBits; j++)
-		{
-			w = w * w;
-			bitCount <<= 1;
-			while (w >= ((uint32_t)1 << 16))
-			{
-				w >>= 1;
-				bitCount++;
-			}
-		}
-		ProbPrices[i >> kNumMoveReducingBits] =
-			((kNumBitModelTotalBits << kCyclesBits) - 15 - bitCount);
-	}
-}
-
-#define GET_PRICE(prob, symbol)                                                                \
-	p->ProbPrices                                                                              \
-		[((prob) ^ (((-(int)(symbol))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits];
-
-#define GET_PRICEa(prob, symbol)                                                               \
-	ProbPrices[((prob) ^ ((-((int)(symbol))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits];
-
-#define GET_PRICE_0(prob) p->ProbPrices[(prob) >> kNumMoveReducingBits]
-#define GET_PRICE_1(prob) p->ProbPrices[((prob) ^ (kBitModelTotal - 1)) >> kNumMoveReducingBits]
-
-#define GET_PRICE_0a(prob) ProbPrices[(prob) >> kNumMoveReducingBits]
-#define GET_PRICE_1a(prob) ProbPrices[((prob) ^ (kBitModelTotal - 1)) >> kNumMoveReducingBits]
-
-static uint32_t LitEnc_GetPrice(const CLzmaProb *probs, uint32_t symbol, uint32_t *ProbPrices)
-{
-	uint32_t price = 0;
-	symbol |= 0x100;
-	do
-	{
-		price += GET_PRICEa(probs[symbol >> 8], (symbol >> 7) & 1);
-		symbol <<= 1;
-	} while (symbol < 0x10000);
-	return price;
-}
-
-static uint32_t LitEnc_GetPriceMatched(const CLzmaProb *probs, uint32_t symbol,
-									   uint32_t matchByte, uint32_t *ProbPrices)
-{
-	uint32_t price = 0;
-	uint32_t offs = 0x100;
-	symbol |= 0x100;
-	do
-	{
-		matchByte <<= 1;
-		price +=
-			GET_PRICEa(probs[offs + (matchByte & offs) + (symbol >> 8)], (symbol >> 7) & 1);
-		symbol <<= 1;
-		offs &= ~(matchByte ^ symbol);
-	} while (symbol < 0x10000);
-	return price;
-}
-
-static void RcTree_Encode(CRangeEnc *rc, CLzmaProb *probs, int numBitLevels, uint32_t symbol)
-{
-	uint32_t m = 1;
-	int i;
-	for (i = numBitLevels; i != 0;)
-	{
-		uint32_t bit;
-		i--;
-		bit = (symbol >> i) & 1;
-		RangeEnc_EncodeBit(rc, probs + m, bit);
-		m = (m << 1) | bit;
-	}
-}
-
-static void RcTree_ReverseEncode(CRangeEnc *rc, CLzmaProb *probs, int numBitLevels,
-								 uint32_t symbol)
-{
-	uint32_t m = 1;
-	int i;
-	for (i = 0; i < numBitLevels; i++)
-	{
-		uint32_t bit = symbol & 1;
-		RangeEnc_EncodeBit(rc, probs + m, bit);
-		m = (m << 1) | bit;
-		symbol >>= 1;
-	}
-}
-
-static uint32_t RcTree_GetPrice(const CLzmaProb *probs, int numBitLevels, uint32_t symbol,
-								uint32_t *ProbPrices)
-{
-	uint32_t price = 0;
-	symbol |= (1 << numBitLevels);
-	while (symbol != 1)
-	{
-		price += GET_PRICEa(probs[symbol >> 1], symbol & 1);
-		symbol >>= 1;
-	}
-	return price;
-}
-
-static uint32_t RcTree_ReverseGetPrice(const CLzmaProb *probs, int numBitLevels,
-									   uint32_t symbol, uint32_t *ProbPrices)
-{
-	uint32_t price = 0;
-	uint32_t m = 1;
-	int i;
-	for (i = numBitLevels; i != 0; i--)
-	{
-		uint32_t bit = symbol & 1;
-		symbol >>= 1;
-		price += GET_PRICEa(probs[m], bit);
-		m = (m << 1) | bit;
-	}
-	return price;
-}
-
-static void LenEnc_Init(CLenEnc *p)
-{
-	unsigned i;
-	p->choice = p->choice2 = kProbInitValue;
-	for (i = 0; i < (LZMA_NUM_PB_STATES_MAX << kLenNumLowBits); i++)
-		p->low[i] = kProbInitValue;
-	for (i = 0; i < (LZMA_NUM_PB_STATES_MAX << kLenNumMidBits); i++)
-		p->mid[i] = kProbInitValue;
-	for (i = 0; i < kLenNumHighSymbols; i++)
-		p->high[i] = kProbInitValue;
-}
-
-static void LenEnc_Encode(CLenEnc *p, CRangeEnc *rc, uint32_t symbol, uint32_t posState)
-{
-	if (symbol < kLenNumLowSymbols)
-	{
-		RangeEnc_EncodeBit(rc, &p->choice, 0);
-		RcTree_Encode(rc, p->low + (posState << kLenNumLowBits), kLenNumLowBits, symbol);
-	}
-	else
-	{
-		RangeEnc_EncodeBit(rc, &p->choice, 1);
-		if (symbol < kLenNumLowSymbols + kLenNumMidSymbols)
-		{
-			RangeEnc_EncodeBit(rc, &p->choice2, 0);
-			RcTree_Encode(rc, p->mid + (posState << kLenNumMidBits), kLenNumMidBits,
-						  symbol - kLenNumLowSymbols);
-		}
-		else
-		{
-			RangeEnc_EncodeBit(rc, &p->choice2, 1);
-			RcTree_Encode(rc, p->high, kLenNumHighBits,
-						  symbol - kLenNumLowSymbols - kLenNumMidSymbols);
-		}
-	}
-}
-
-static void LenEnc_SetPrices(CLenEnc *p, uint32_t posState, uint32_t numSymbols,
-							 uint32_t *prices, uint32_t *ProbPrices)
-{
-	uint32_t a0 = GET_PRICE_0a(p->choice);
-	uint32_t a1 = GET_PRICE_1a(p->choice);
-	uint32_t b0 = a1 + GET_PRICE_0a(p->choice2);
-	uint32_t b1 = a1 + GET_PRICE_1a(p->choice2);
-	uint32_t i = 0;
-	for (i = 0; i < kLenNumLowSymbols; i++)
-	{
-		if (i >= numSymbols)
-			return;
-		prices[i] = a0 + RcTree_GetPrice(p->low + (posState << kLenNumLowBits), kLenNumLowBits,
-										 i, ProbPrices);
-	}
-	for (; i < kLenNumLowSymbols + kLenNumMidSymbols; i++)
-	{
-		if (i >= numSymbols)
-			return;
-		prices[i] = b0 + RcTree_GetPrice(p->mid + (posState << kLenNumMidBits), kLenNumMidBits,
-										 i - kLenNumLowSymbols, ProbPrices);
-	}
-	for (; i < numSymbols; i++)
-		prices[i] = b1 + RcTree_GetPrice(p->high, kLenNumHighBits,
-										 i - kLenNumLowSymbols - kLenNumMidSymbols, ProbPrices);
-}
-
-static void MY_FAST_CALL
-LenPriceEnc_UpdateTable(CLenPriceEnc *p, uint32_t posState, uint32_t *ProbPrices)
-{
-	LenEnc_SetPrices(&p->p, posState, p->tableSize, p->prices[posState], ProbPrices);
-	p->counters[posState] = p->tableSize;
-}
-
-static void LenPriceEnc_UpdateTables(CLenPriceEnc *p, uint32_t numPosStates,
-									 uint32_t *ProbPrices)
-{
-	uint32_t posState;
-	for (posState = 0; posState < numPosStates; posState++)
-		LenPriceEnc_UpdateTable(p, posState, ProbPrices);
-}
-
-static void LenEnc_Encode2(CLenPriceEnc *p, CRangeEnc *rc, uint32_t symbol, uint32_t posState,
-						   Bool updatePrice, uint32_t *ProbPrices)
-{
-	LenEnc_Encode(&p->p, rc, symbol, posState);
-	if (updatePrice)
-		if (--p->counters[posState] == 0)
-			LenPriceEnc_UpdateTable(p, posState, ProbPrices);
-}
-
-static void MovePos(CLzmaEnc *p, uint32_t num)
-{
-#ifdef SHOW_STAT
-	ttt += num;
-	printf("\n MovePos %d", num);
-#endif
-	if (num != 0)
-	{
-		p->additionalOffset += num;
-		p->matchFinder.Skip(p->matchFinderObj, num);
-	}
-}
-
-static uint32_t ReadMatchDistances(CLzmaEnc *p, uint32_t *numDistancePairsRes)
-{
-	uint32_t lenRes = 0, numPairs;
-	p->numAvail = p->matchFinder.GetNumAvailableBytes(p->matchFinderObj);
-	numPairs = p->matchFinder.GetMatches(p->matchFinderObj, p->matches);
-#ifdef SHOW_STAT
-	printf("\n i = %d numPairs = %d    ", ttt, numPairs / 2);
-	ttt++;
-	{
-		uint32_t i;
-		for (i = 0; i < numPairs; i += 2)
-			printf("%2d %6d   | ", p->matches[i], p->matches[i + 1]);
-	}
-#endif
-	if (numPairs > 0)
-	{
-		lenRes = p->matches[numPairs - 2];
-		if (lenRes == p->numFastBytes)
-		{
-			const uint8_t *pby = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
-			uint32_t distance = p->matches[numPairs - 1] + 1;
-			uint32_t numAvail = p->numAvail;
-			if (numAvail > LZMA_MATCH_LEN_MAX)
-				numAvail = LZMA_MATCH_LEN_MAX;
-			{
-				const uint8_t *pby2 = pby - distance;
-				for (; lenRes < numAvail && pby[lenRes] == pby2[lenRes]; lenRes++)
-					;
-			}
-		}
-	}
-	p->additionalOffset++;
-	*numDistancePairsRes = numPairs;
-	return lenRes;
-}
-
-#define MakeAsChar(p)                                                                          \
-	(p)->backPrev = (uint32_t)(-1);                                                            \
-	(p)->prev1IsChar = False;
-#define MakeAsShortRep(p)                                                                      \
-	(p)->backPrev = 0;                                                                         \
-	(p)->prev1IsChar = False;
-#define IsShortRep(p) ((p)->backPrev == 0)
-
-static uint32_t GetRepLen1Price(CLzmaEnc *p, uint32_t state, uint32_t posState)
-{
-	return GET_PRICE_0(p->isRepG0[state]) + GET_PRICE_0(p->isRep0Long[state][posState]);
-}
-
-static uint32_t GetPureRepPrice(CLzmaEnc *p, uint32_t repIndex, uint32_t state,
-								uint32_t posState)
-{
-	uint32_t price;
-	if (repIndex == 0)
-	{
-		price = GET_PRICE_0(p->isRepG0[state]);
-		price += GET_PRICE_1(p->isRep0Long[state][posState]);
-	}
-	else
-	{
-		price = GET_PRICE_1(p->isRepG0[state]);
-		if (repIndex == 1)
-			price += GET_PRICE_0(p->isRepG1[state]);
-		else
-		{
-			price += GET_PRICE_1(p->isRepG1[state]);
-			price += GET_PRICE(p->isRepG2[state], repIndex - 2);
-		}
-	}
-	return price;
-}
-
-static uint32_t GetRepPrice(CLzmaEnc *p, uint32_t repIndex, uint32_t len, uint32_t state,
-							uint32_t posState)
-{
-	return p->repLenEnc.prices[posState][len - LZMA_MATCH_LEN_MIN] +
-		   GetPureRepPrice(p, repIndex, state, posState);
-}
-
-static uint32_t Backward(CLzmaEnc *p, uint32_t *backRes, uint32_t cur)
-{
-	uint32_t posMem = p->opt[cur].posPrev;
-	uint32_t backMem = p->opt[cur].backPrev;
-	p->optimumEndIndex = cur;
-	do
-	{
-		if (p->opt[cur].prev1IsChar)
-		{
-			MakeAsChar(&p->opt[posMem])
-			p->opt[posMem].posPrev = posMem - 1;
-			if (p->opt[cur].prev2)
-			{
-				p->opt[posMem - 1].prev1IsChar = False;
-				p->opt[posMem - 1].posPrev = p->opt[cur].posPrev2;
-				p->opt[posMem - 1].backPrev = p->opt[cur].backPrev2;
-			}
-		}
-		{
-			uint32_t posPrev = posMem;
-			uint32_t backCur = backMem;
-
-			backMem = p->opt[posPrev].backPrev;
-			posMem = p->opt[posPrev].posPrev;
-
-			p->opt[posPrev].backPrev = backCur;
-			p->opt[posPrev].posPrev = cur;
-			cur = posPrev;
-		}
-	} while (cur != 0);
-	*backRes = p->opt[0].backPrev;
-	p->optimumCurrentIndex = p->opt[0].posPrev;
-	return p->optimumCurrentIndex;
-}
-
-#define LIT_PROBS(pos, prevByte)                                                               \
-	(p->litProbs + ((((pos) & p->lpMask) << p->lc) + ((prevByte) >> (8 - p->lc))) * 0x300)
-
-static uint32_t GetOptimum(CLzmaEnc *p, uint32_t position, uint32_t *backRes)
-{
-	uint32_t numAvail, mainLen, numPairs, repMaxIndex, i, posState, lenEnd, len, cur;
-	uint32_t matchPrice, repMatchPrice, normalMatchPrice;
-	uint32_t reps[LZMA_NUM_REPS], repLens[LZMA_NUM_REPS];
-	uint32_t *matches;
-	const uint8_t *data;
-	uint8_t curByte, matchByte;
-	if (p->optimumEndIndex != p->optimumCurrentIndex)
-	{
-		const COptimal *opt = &p->opt[p->optimumCurrentIndex];
-		uint32_t lenRes = opt->posPrev - p->optimumCurrentIndex;
-		*backRes = opt->backPrev;
-		p->optimumCurrentIndex = opt->posPrev;
-		return lenRes;
-	}
-	p->optimumCurrentIndex = p->optimumEndIndex = 0;
-
-	if (p->additionalOffset == 0)
-		mainLen = ReadMatchDistances(p, &numPairs);
-	else
-	{
-		mainLen = p->longestMatchLength;
-		numPairs = p->numPairs;
-	}
-
-	numAvail = p->numAvail;
-	if (numAvail < 2)
-	{
-		*backRes = (uint32_t)(-1);
-		return 1;
-	}
-	if (numAvail > LZMA_MATCH_LEN_MAX)
-		numAvail = LZMA_MATCH_LEN_MAX;
-
-	data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
-	repMaxIndex = 0;
-	for (i = 0; i < LZMA_NUM_REPS; i++)
-	{
-		uint32_t lenTest;
-		const uint8_t *data2;
-		reps[i] = p->reps[i];
-		data2 = data - (reps[i] + 1);
-		if (data[0] != data2[0] || data[1] != data2[1])
-		{
-			repLens[i] = 0;
-			continue;
-		}
-		for (lenTest = 2; lenTest < numAvail && data[lenTest] == data2[lenTest]; lenTest++)
-			;
-		repLens[i] = lenTest;
-		if (lenTest > repLens[repMaxIndex])
-			repMaxIndex = i;
-	}
-	if (repLens[repMaxIndex] >= p->numFastBytes)
-	{
-		uint32_t lenRes;
-		*backRes = repMaxIndex;
-		lenRes = repLens[repMaxIndex];
-		MovePos(p, lenRes - 1);
-		return lenRes;
-	}
-
-	matches = p->matches;
-	if (mainLen >= p->numFastBytes)
-	{
-		*backRes = matches[numPairs - 1] + LZMA_NUM_REPS;
-		MovePos(p, mainLen - 1);
-		return mainLen;
-	}
-	curByte = *data;
-	matchByte = *(data - (reps[0] + 1));
-
-	if (mainLen < 2 && curByte != matchByte && repLens[repMaxIndex] < 2)
-	{
-		*backRes = (uint32_t) - 1;
-		return 1;
-	}
-
-	p->opt[0].state = (CState)p->state;
-
-	posState = (position & p->pbMask);
-
-	{
-		const CLzmaProb *probs = LIT_PROBS(position, *(data - 1));
-		p->opt[1].price =
-			GET_PRICE_0(p->isMatch[p->state][posState]) +
-			(!IsCharState(p->state)
-				 ? LitEnc_GetPriceMatched(probs, curByte, matchByte, p->ProbPrices)
-				 : LitEnc_GetPrice(probs, curByte, p->ProbPrices));
-	}
-
-	MakeAsChar(&p->opt[1]);
-
-	matchPrice = GET_PRICE_1(p->isMatch[p->state][posState]);
-	repMatchPrice = matchPrice + GET_PRICE_1(p->isRep[p->state]);
-
-	if (matchByte == curByte)
-	{
-		uint32_t shortRepPrice = repMatchPrice + GetRepLen1Price(p, p->state, posState);
-		if (shortRepPrice < p->opt[1].price)
-		{
-			p->opt[1].price = shortRepPrice;
-			MakeAsShortRep(&p->opt[1]);
-		}
-	}
-	lenEnd = ((mainLen >= repLens[repMaxIndex]) ? mainLen : repLens[repMaxIndex]);
-
-	if (lenEnd < 2)
-	{
-		*backRes = p->opt[1].backPrev;
-		return 1;
-	}
-
-	p->opt[1].posPrev = 0;
-	for (i = 0; i < LZMA_NUM_REPS; i++)
-		p->opt[0].backs[i] = reps[i];
-
-	len = lenEnd;
-	do
-		p->opt[len--].price = kInfinityPrice;
-	while (len >= 2);
-
-	for (i = 0; i < LZMA_NUM_REPS; i++)
-	{
-		uint32_t repLen = repLens[i];
-		uint32_t price;
-		if (repLen < 2)
-			continue;
-		price = repMatchPrice + GetPureRepPrice(p, i, p->state, posState);
-		do
-		{
-			uint32_t curAndLenPrice = price + p->repLenEnc.prices[posState][repLen - 2];
-			COptimal *opt = &p->opt[repLen];
-			if (curAndLenPrice < opt->price)
-			{
-				opt->price = curAndLenPrice;
-				opt->posPrev = 0;
-				opt->backPrev = i;
-				opt->prev1IsChar = False;
-			}
-		} while (--repLen >= 2);
-	}
-
-	normalMatchPrice = matchPrice + GET_PRICE_0(p->isRep[p->state]);
-
-	len = ((repLens[0] >= 2) ? repLens[0] + 1 : 2);
-	if (len <= mainLen)
-	{
-		uint32_t offs = 0;
-		while (len > matches[offs])
-			offs += 2;
-		for (;; len++)
-		{
-			COptimal *opt;
-			uint32_t distance = matches[offs + 1];
-
-			uint32_t curAndLenPrice =
-				normalMatchPrice + p->lenEnc.prices[posState][len - LZMA_MATCH_LEN_MIN];
-			uint32_t lenToPosState = GetLenToPosState(len);
-			if (distance < kNumFullDistances)
-				curAndLenPrice += p->distancesPrices[lenToPosState][distance];
-			else
-			{
-				uint32_t slot;
-				GetPosSlot2(distance, slot);
-				curAndLenPrice += p->alignPrices[distance & kAlignMask] +
-								  p->posSlotPrices[lenToPosState][slot];
-			}
-			opt = &p->opt[len];
-			if (curAndLenPrice < opt->price)
-			{
-				opt->price = curAndLenPrice;
-				opt->posPrev = 0;
-				opt->backPrev = distance + LZMA_NUM_REPS;
-				opt->prev1IsChar = False;
-			}
-			if (len == matches[offs])
-			{
-				offs += 2;
-				if (offs == numPairs)
-					break;
-			}
-		}
-	}
-
-	cur = 0;
-
-#ifdef SHOW_STAT2
-	if (position >= 0)
-	{
-		unsigned i;
-		printf("\n pos = %4X", position);
-		for (i = cur; i <= lenEnd; i++)
-			printf("\nprice[%4X] = %d", position - cur + i, p->opt[i].price);
-	}
-#endif
-
-	for (;;)
-	{
-		uint32_t numAvailFull, newLen, numPairs, posPrev, state, posState, startLen;
-		uint32_t curPrice, curAnd1Price, matchPrice, repMatchPrice;
-		Bool nextIsChar;
-		uint8_t curByte, matchByte;
-		const uint8_t *data;
-		COptimal *curOpt;
-		COptimal *nextOpt;
-
-		cur++;
-		if (cur == lenEnd)
-			return Backward(p, backRes, cur);
-
-		newLen = ReadMatchDistances(p, &numPairs);
-		if (newLen >= p->numFastBytes)
-		{
-			p->numPairs = numPairs;
-			p->longestMatchLength = newLen;
-			return Backward(p, backRes, cur);
-		}
-		position++;
-		curOpt = &p->opt[cur];
-		posPrev = curOpt->posPrev;
-		if (curOpt->prev1IsChar)
-		{
-			posPrev--;
-			if (curOpt->prev2)
-			{
-				state = p->opt[curOpt->posPrev2].state;
-				if (curOpt->backPrev2 < LZMA_NUM_REPS)
-					state = kRepNextStates[state];
-				else
-					state = kMatchNextStates[state];
-			}
-			else
-				state = p->opt[posPrev].state;
-			state = kLiteralNextStates[state];
-		}
-		else
-			state = p->opt[posPrev].state;
-		if (posPrev == cur - 1)
-		{
-			if (IsShortRep(curOpt))
-				state = kShortRepNextStates[state];
-			else
-				state = kLiteralNextStates[state];
-		}
-		else
-		{
-			uint32_t pos;
-			const COptimal *prevOpt;
-			if (curOpt->prev1IsChar && curOpt->prev2)
-			{
-				posPrev = curOpt->posPrev2;
-				pos = curOpt->backPrev2;
-				state = kRepNextStates[state];
-			}
-			else
-			{
-				pos = curOpt->backPrev;
-				if (pos < LZMA_NUM_REPS)
-					state = kRepNextStates[state];
-				else
-					state = kMatchNextStates[state];
-			}
-			prevOpt = &p->opt[posPrev];
-			if (pos < LZMA_NUM_REPS)
-			{
-				uint32_t i;
-				reps[0] = prevOpt->backs[pos];
-				for (i = 1; i <= pos; i++)
-					reps[i] = prevOpt->backs[i - 1];
-				for (; i < LZMA_NUM_REPS; i++)
-					reps[i] = prevOpt->backs[i];
-			}
-			else
-			{
-				uint32_t i;
-				reps[0] = (pos - LZMA_NUM_REPS);
-				for (i = 1; i < LZMA_NUM_REPS; i++)
-					reps[i] = prevOpt->backs[i - 1];
-			}
-		}
-		curOpt->state = (CState)state;
-
-		curOpt->backs[0] = reps[0];
-		curOpt->backs[1] = reps[1];
-		curOpt->backs[2] = reps[2];
-		curOpt->backs[3] = reps[3];
-
-		curPrice = curOpt->price;
-		nextIsChar = False;
-		data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
-		curByte = *data;
-		matchByte = *(data - (reps[0] + 1));
-
-		posState = (position & p->pbMask);
-
-		curAnd1Price = curPrice + GET_PRICE_0(p->isMatch[state][posState]);
-		{
-			const CLzmaProb *probs = LIT_PROBS(position, *(data - 1));
-			curAnd1Price +=
-				(!IsCharState(state)
-					 ? LitEnc_GetPriceMatched(probs, curByte, matchByte, p->ProbPrices)
-					 : LitEnc_GetPrice(probs, curByte, p->ProbPrices));
-		}
-
-		nextOpt = &p->opt[cur + 1];
-
-		if (curAnd1Price < nextOpt->price)
-		{
-			nextOpt->price = curAnd1Price;
-			nextOpt->posPrev = cur;
-			MakeAsChar(nextOpt);
-			nextIsChar = True;
-		}
-
-		matchPrice = curPrice + GET_PRICE_1(p->isMatch[state][posState]);
-		repMatchPrice = matchPrice + GET_PRICE_1(p->isRep[state]);
-
-		if (matchByte == curByte && !(nextOpt->posPrev < cur && nextOpt->backPrev == 0))
-		{
-			uint32_t shortRepPrice = repMatchPrice + GetRepLen1Price(p, state, posState);
-			if (shortRepPrice <= nextOpt->price)
-			{
-				nextOpt->price = shortRepPrice;
-				nextOpt->posPrev = cur;
-				MakeAsShortRep(nextOpt);
-				nextIsChar = True;
-			}
-		}
-		numAvailFull = p->numAvail;
-		{
-			uint32_t temp = kNumOpts - 1 - cur;
-			if (temp < numAvailFull)
-				numAvailFull = temp;
-		}
-
-		if (numAvailFull < 2)
-			continue;
-		numAvail = (numAvailFull <= p->numFastBytes ? numAvailFull : p->numFastBytes);
-
-		if (!nextIsChar && matchByte != curByte) /* speed optimization */
-		{
-			/* try Literal + rep0 */
-			uint32_t temp;
-			uint32_t lenTest2;
-			const uint8_t *data2 = data - (reps[0] + 1);
-			uint32_t limit = p->numFastBytes + 1;
-			if (limit > numAvailFull)
-				limit = numAvailFull;
-
-			for (temp = 1; temp < limit && data[temp] == data2[temp]; temp++)
-				;
-			lenTest2 = temp - 1;
-			if (lenTest2 >= 2)
-			{
-				uint32_t state2 = kLiteralNextStates[state];
-				uint32_t posStateNext = (position + 1) & p->pbMask;
-				uint32_t nextRepMatchPrice = curAnd1Price +
-											 GET_PRICE_1(p->isMatch[state2][posStateNext]) +
-											 GET_PRICE_1(p->isRep[state2]);
-				/* for (; lenTest2 >= 2; lenTest2--) */
-				{
-					uint32_t curAndLenPrice;
-					COptimal *opt;
-					uint32_t offset = cur + 1 + lenTest2;
-					while (lenEnd < offset)
-						p->opt[++lenEnd].price = kInfinityPrice;
-					curAndLenPrice =
-						nextRepMatchPrice + GetRepPrice(p, 0, lenTest2, state2, posStateNext);
-					opt = &p->opt[offset];
-					if (curAndLenPrice < opt->price)
-					{
-						opt->price = curAndLenPrice;
-						opt->posPrev = cur + 1;
-						opt->backPrev = 0;
-						opt->prev1IsChar = True;
-						opt->prev2 = False;
-					}
-				}
-			}
-		}
-
-		startLen = 2; /* speed optimization */
-		{
-			uint32_t repIndex;
-			for (repIndex = 0; repIndex < LZMA_NUM_REPS; repIndex++)
-			{
-				uint32_t lenTest;
-				uint32_t lenTestTemp;
-				uint32_t price;
-				const uint8_t *data2 = data - (reps[repIndex] + 1);
-				if (data[0] != data2[0] || data[1] != data2[1])
-					continue;
-				for (lenTest = 2; lenTest < numAvail && data[lenTest] == data2[lenTest];
-					 lenTest++)
-					;
-				while (lenEnd < cur + lenTest)
-					p->opt[++lenEnd].price = kInfinityPrice;
-				lenTestTemp = lenTest;
-				price = repMatchPrice + GetPureRepPrice(p, repIndex, state, posState);
-				do
-				{
-					uint32_t curAndLenPrice =
-						price + p->repLenEnc.prices[posState][lenTest - 2];
-					COptimal *opt = &p->opt[cur + lenTest];
-					if (curAndLenPrice < opt->price)
-					{
-						opt->price = curAndLenPrice;
-						opt->posPrev = cur;
-						opt->backPrev = repIndex;
-						opt->prev1IsChar = False;
-					}
-				} while (--lenTest >= 2);
-				lenTest = lenTestTemp;
-
-				if (repIndex == 0)
-					startLen = lenTest + 1;
-
-				/* if (_maxMode) */
-				{
-					uint32_t lenTest2 = lenTest + 1;
-					uint32_t limit = lenTest2 + p->numFastBytes;
-					uint32_t nextRepMatchPrice;
-					if (limit > numAvailFull)
-						limit = numAvailFull;
-					for (; lenTest2 < limit && data[lenTest2] == data2[lenTest2]; lenTest2++)
-						;
-					lenTest2 -= lenTest + 1;
-					if (lenTest2 >= 2)
-					{
-						uint32_t state2 = kRepNextStates[state];
-						uint32_t posStateNext = (position + lenTest) & p->pbMask;
-						uint32_t curAndLenCharPrice =
-							price + p->repLenEnc.prices[posState][lenTest - 2] +
-							GET_PRICE_0(p->isMatch[state2][posStateNext]) +
-							LitEnc_GetPriceMatched(
-								LIT_PROBS(position + lenTest, data[lenTest - 1]), data[lenTest],
-								data2[lenTest], p->ProbPrices);
-						state2 = kLiteralNextStates[state2];
-						posStateNext = (position + lenTest + 1) & p->pbMask;
-						nextRepMatchPrice = curAndLenCharPrice +
-											GET_PRICE_1(p->isMatch[state2][posStateNext]) +
-											GET_PRICE_1(p->isRep[state2]);
-
-						/* for (; lenTest2 >= 2; lenTest2--) */
-						{
-							uint32_t curAndLenPrice;
-							COptimal *opt;
-							uint32_t offset = cur + lenTest + 1 + lenTest2;
-							while (lenEnd < offset)
-								p->opt[++lenEnd].price = kInfinityPrice;
-							curAndLenPrice = nextRepMatchPrice +
-											 GetRepPrice(p, 0, lenTest2, state2, posStateNext);
-							opt = &p->opt[offset];
-							if (curAndLenPrice < opt->price)
-							{
-								opt->price = curAndLenPrice;
-								opt->posPrev = cur + lenTest + 1;
-								opt->backPrev = 0;
-								opt->prev1IsChar = True;
-								opt->prev2 = True;
-								opt->posPrev2 = cur;
-								opt->backPrev2 = repIndex;
-							}
-						}
-					}
-				}
-			}
-		}
-		/* for (uint32_t lenTest = 2; lenTest <= newLen; lenTest++) */
-		if (newLen > numAvail)
-		{
-			newLen = numAvail;
-			for (numPairs = 0; newLen > matches[numPairs]; numPairs += 2)
-				;
-			matches[numPairs] = newLen;
-			numPairs += 2;
-		}
-		if (newLen >= startLen)
-		{
-			uint32_t normalMatchPrice = matchPrice + GET_PRICE_0(p->isRep[state]);
-			uint32_t offs, curBack, posSlot;
-			uint32_t lenTest;
-			while (lenEnd < cur + newLen)
-				p->opt[++lenEnd].price = kInfinityPrice;
-
-			offs = 0;
-			while (startLen > matches[offs])
-				offs += 2;
-			curBack = matches[offs + 1];
-			GetPosSlot2(curBack, posSlot);
-			for (lenTest = /*2*/ startLen;; lenTest++)
-			{
-				uint32_t curAndLenPrice =
-					normalMatchPrice + p->lenEnc.prices[posState][lenTest - LZMA_MATCH_LEN_MIN];
-				uint32_t lenToPosState = GetLenToPosState(lenTest);
-				COptimal *opt;
-				if (curBack < kNumFullDistances)
-					curAndLenPrice += p->distancesPrices[lenToPosState][curBack];
-				else
-					curAndLenPrice += p->posSlotPrices[lenToPosState][posSlot] +
-									  p->alignPrices[curBack & kAlignMask];
-
-				opt = &p->opt[cur + lenTest];
-				if (curAndLenPrice < opt->price)
-				{
-					opt->price = curAndLenPrice;
-					opt->posPrev = cur;
-					opt->backPrev = curBack + LZMA_NUM_REPS;
-					opt->prev1IsChar = False;
-				}
-
-				if (/*_maxMode && */ lenTest == matches[offs])
-				{
-					/* Try Match + Literal + Rep0 */
-					const uint8_t *data2 = data - (curBack + 1);
-					uint32_t lenTest2 = lenTest + 1;
-					uint32_t limit = lenTest2 + p->numFastBytes;
-					uint32_t nextRepMatchPrice;
-					if (limit > numAvailFull)
-						limit = numAvailFull;
-					for (; lenTest2 < limit && data[lenTest2] == data2[lenTest2]; lenTest2++)
-						;
-					lenTest2 -= lenTest + 1;
-					if (lenTest2 >= 2)
-					{
-						uint32_t state2 = kMatchNextStates[state];
-						uint32_t posStateNext = (position + lenTest) & p->pbMask;
-						uint32_t curAndLenCharPrice =
-							curAndLenPrice + GET_PRICE_0(p->isMatch[state2][posStateNext]) +
-							LitEnc_GetPriceMatched(
-								LIT_PROBS(position + lenTest, data[lenTest - 1]), data[lenTest],
-								data2[lenTest], p->ProbPrices);
-						state2 = kLiteralNextStates[state2];
-						posStateNext = (posStateNext + 1) & p->pbMask;
-						nextRepMatchPrice = curAndLenCharPrice +
-											GET_PRICE_1(p->isMatch[state2][posStateNext]) +
-											GET_PRICE_1(p->isRep[state2]);
-
-						/* for (; lenTest2 >= 2; lenTest2--) */
-						{
-							uint32_t offset = cur + lenTest + 1 + lenTest2;
-							uint32_t curAndLenPrice;
-							COptimal *opt;
-							while (lenEnd < offset)
-								p->opt[++lenEnd].price = kInfinityPrice;
-							curAndLenPrice = nextRepMatchPrice +
-											 GetRepPrice(p, 0, lenTest2, state2, posStateNext);
-							opt = &p->opt[offset];
-							if (curAndLenPrice < opt->price)
-							{
-								opt->price = curAndLenPrice;
-								opt->posPrev = cur + lenTest + 1;
-								opt->backPrev = 0;
-								opt->prev1IsChar = True;
-								opt->prev2 = True;
-								opt->posPrev2 = cur;
-								opt->backPrev2 = curBack + LZMA_NUM_REPS;
-							}
-						}
-					}
-					offs += 2;
-					if (offs == numPairs)
-						break;
-					curBack = matches[offs + 1];
-					if (curBack >= kNumFullDistances)
-						GetPosSlot2(curBack, posSlot);
-				}
-			}
-		}
-	}
-}
-
-#define ChangePair(smallDist, bigDist) (((bigDist) >> 7) > (smallDist))
-
-static uint32_t GetOptimumFast(CLzmaEnc *p, uint32_t *backRes)
-{
-	uint32_t numAvail, mainLen, mainDist, numPairs, repIndex, repLen, i;
-	const uint8_t *data;
-	const uint32_t *matches;
-
-	if (p->additionalOffset == 0)
-		mainLen = ReadMatchDistances(p, &numPairs);
-	else
-	{
-		mainLen = p->longestMatchLength;
-		numPairs = p->numPairs;
-	}
-
-	numAvail = p->numAvail;
-	*backRes = (uint32_t) - 1;
-	if (numAvail < 2)
-		return 1;
-	if (numAvail > LZMA_MATCH_LEN_MAX)
-		numAvail = LZMA_MATCH_LEN_MAX;
-	data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
-
-	repLen = repIndex = 0;
-	for (i = 0; i < LZMA_NUM_REPS; i++)
-	{
-		uint32_t len;
-		const uint8_t *data2 = data - (p->reps[i] + 1);
-		if (data[0] != data2[0] || data[1] != data2[1])
-			continue;
-		for (len = 2; len < numAvail && data[len] == data2[len]; len++)
-			;
-		if (len >= p->numFastBytes)
-		{
-			*backRes = i;
-			MovePos(p, len - 1);
-			return len;
-		}
-		if (len > repLen)
-		{
-			repIndex = i;
-			repLen = len;
-		}
-	}
-
-	matches = p->matches;
-	if (mainLen >= p->numFastBytes)
-	{
-		*backRes = matches[numPairs - 1] + LZMA_NUM_REPS;
-		MovePos(p, mainLen - 1);
-		return mainLen;
-	}
-
-	mainDist = 0; /* for GCC */
-	if (mainLen >= 2)
-	{
-		mainDist = matches[numPairs - 1];
-		while (numPairs > 2 && mainLen == matches[numPairs - 4] + 1)
-		{
-			if (!ChangePair(matches[numPairs - 3], mainDist))
-				break;
-			numPairs -= 2;
-			mainLen = matches[numPairs - 2];
-			mainDist = matches[numPairs - 1];
-		}
-		if (mainLen == 2 && mainDist >= 0x80)
-			mainLen = 1;
-	}
-
-	if (repLen >= 2 &&
-		((repLen + 1 >= mainLen) || (repLen + 2 >= mainLen && mainDist >= (1 << 9)) ||
-		 (repLen + 3 >= mainLen && mainDist >= (1 << 15))))
-	{
-		*backRes = repIndex;
-		MovePos(p, repLen - 1);
-		return repLen;
-	}
-
-	if (mainLen < 2 || numAvail <= 2)
-		return 1;
-
-	p->longestMatchLength = ReadMatchDistances(p, &p->numPairs);
-	if (p->longestMatchLength >= 2)
-	{
-		uint32_t newDistance = matches[p->numPairs - 1];
-		if ((p->longestMatchLength >= mainLen && newDistance < mainDist) ||
-			(p->longestMatchLength == mainLen + 1 && !ChangePair(mainDist, newDistance)) ||
-			(p->longestMatchLength > mainLen + 1) ||
-			(p->longestMatchLength + 1 >= mainLen && mainLen >= 3 &&
-			 ChangePair(newDistance, mainDist)))
-			return 1;
-	}
-
-	data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
-	for (i = 0; i < LZMA_NUM_REPS; i++)
-	{
-		uint32_t len, limit;
-		const uint8_t *data2 = data - (p->reps[i] + 1);
-		if (data[0] != data2[0] || data[1] != data2[1])
-			continue;
-		limit = mainLen - 1;
-		for (len = 2; len < limit && data[len] == data2[len]; len++)
-			;
-		if (len >= limit)
-			return 1;
-	}
-	*backRes = mainDist + LZMA_NUM_REPS;
-	MovePos(p, mainLen - 2);
-	return mainLen;
-}
-
-static void WriteEndMarker(CLzmaEnc *p, uint32_t posState)
-{
-	uint32_t len;
-	RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][posState], 1);
-	RangeEnc_EncodeBit(&p->rc, &p->isRep[p->state], 0);
-	p->state = kMatchNextStates[p->state];
-	len = LZMA_MATCH_LEN_MIN;
-	LenEnc_Encode2(&p->lenEnc, &p->rc, len - LZMA_MATCH_LEN_MIN, posState, !p->fastMode,
-				   p->ProbPrices);
-	RcTree_Encode(&p->rc, p->posSlotEncoder[GetLenToPosState(len)], kNumPosSlotBits,
-				  (1 << kNumPosSlotBits) - 1);
-	RangeEnc_EncodeDirectBits(&p->rc, (((uint32_t)1 << 30) - 1) >> kNumAlignBits,
-							  30 - kNumAlignBits);
-	RcTree_ReverseEncode(&p->rc, p->posAlignEncoder, kNumAlignBits, kAlignMask);
-}
-
-static SRes CheckErrors(CLzmaEnc *p)
-{
-	if (p->result != SZ_OK)
-		return p->result;
-	if (p->rc.res != SZ_OK)
-		p->result = SZ_ERROR_WRITE;
-	if (p->matchFinderBase.result != SZ_OK)
-		p->result = SZ_ERROR_READ;
-	if (p->result != SZ_OK)
-		p->finished = True;
-	return p->result;
-}
-
-static SRes Flush(CLzmaEnc *p, uint32_t nowPos)
-{
-	/* ReleaseMFStream(); */
-	p->finished = True;
-	if (p->writeEndMark)
-		WriteEndMarker(p, nowPos & p->pbMask);
-	RangeEnc_FlushData(&p->rc);
-	RangeEnc_FlushStream(&p->rc);
-	return CheckErrors(p);
-}
-
-static void FillAlignPrices(CLzmaEnc *p)
-{
-	uint32_t i;
-	for (i = 0; i < kAlignTableSize; i++)
-		p->alignPrices[i] =
-			RcTree_ReverseGetPrice(p->posAlignEncoder, kNumAlignBits, i, p->ProbPrices);
-	p->alignPriceCount = 0;
-}
-
-static void FillDistancesPrices(CLzmaEnc *p)
-{
-	uint32_t tempPrices[kNumFullDistances];
-	uint32_t i, lenToPosState;
-	for (i = kStartPosModelIndex; i < kNumFullDistances; i++)
-	{
-		uint32_t posSlot = GetPosSlot1(i);
-		uint32_t footerBits = ((posSlot >> 1) - 1);
-		uint32_t base = ((2 | (posSlot & 1)) << footerBits);
-		tempPrices[i] = RcTree_ReverseGetPrice(p->posEncoders + base - posSlot - 1, footerBits,
-											   i - base, p->ProbPrices);
-	}
-
-	for (lenToPosState = 0; lenToPosState < kNumLenToPosStates; lenToPosState++)
-	{
-		uint32_t posSlot;
-		const CLzmaProb *encoder = p->posSlotEncoder[lenToPosState];
-		uint32_t *posSlotPrices = p->posSlotPrices[lenToPosState];
-		for (posSlot = 0; posSlot < p->distTableSize; posSlot++)
-			posSlotPrices[posSlot] =
-				RcTree_GetPrice(encoder, kNumPosSlotBits, posSlot, p->ProbPrices);
-		for (posSlot = kEndPosModelIndex; posSlot < p->distTableSize; posSlot++)
-			posSlotPrices[posSlot] +=
-				((((posSlot >> 1) - 1) - kNumAlignBits) << kNumBitPriceShiftBits);
-
-		{
-			uint32_t *distancesPrices = p->distancesPrices[lenToPosState];
-			uint32_t i;
-			for (i = 0; i < kStartPosModelIndex; i++)
-				distancesPrices[i] = posSlotPrices[i];
-			for (; i < kNumFullDistances; i++)
-				distancesPrices[i] = posSlotPrices[GetPosSlot1(i)] + tempPrices[i];
-		}
-	}
-	p->matchPriceCount = 0;
-}
-
-void LzmaEnc_Construct(CLzmaEnc *p)
-{
-	RangeEnc_Construct(&p->rc);
-	MatchFinder_Construct(&p->matchFinderBase);
-#ifdef COMPRESS_MF_MT
-	MatchFinderMt_Construct(&p->matchFinderMt);
-	p->matchFinderMt.MatchFinder = &p->matchFinderBase;
-#endif
-
-	{
-		CLzmaEncProps props;
-		LzmaEncProps_Init(&props);
-		LzmaEnc_SetProps(p, &props);
-	}
-
-#ifndef LZMA_LOG_BSR
-	LzmaEnc_FastPosInit(p->g_FastPos);
-#endif
-
-	LzmaEnc_InitPriceTables(p->ProbPrices);
-	p->litProbs = 0;
-	p->saveState.litProbs = 0;
-}
-
-CLzmaEncHandle LzmaEnc_Create()
-{
-	void *p;
-	p = malloc(sizeof(CLzmaEnc));
-	if (p != 0)
-		LzmaEnc_Construct((CLzmaEnc *)p);
-	return p;
-}
-
-void LzmaEnc_FreeLits(CLzmaEnc *p)
-{
-	free(p->litProbs);
-	free(p->saveState.litProbs);
-	p->litProbs = 0;
-	p->saveState.litProbs = 0;
-}
-
-void LzmaEnc_Destruct(CLzmaEnc *p)
-{
-#ifdef COMPRESS_MF_MT
-	MatchFinderMt_Destruct(&p->matchFinderMt, allocBig);
-#endif
-	MatchFinder_Free(&p->matchFinderBase);
-	LzmaEnc_FreeLits(p);
-	RangeEnc_Free(&p->rc);
-}
-
-void LzmaEnc_Destroy(CLzmaEncHandle p)
-{
-	LzmaEnc_Destruct((CLzmaEnc *)p);
-	free(p);
-}
-
-static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, Bool useLimits, uint32_t maxPackSize,
-								 uint32_t maxUnpackSize)
-{
-	uint32_t nowPos32, startPos32;
-	if (p->inStream != 0)
-	{
-		p->matchFinderBase.stream = p->inStream;
-		p->matchFinder.Init(p->matchFinderObj);
-		p->inStream = 0;
-	}
-
-	if (p->finished)
-		return p->result;
-	RINOK(CheckErrors(p));
-
-	nowPos32 = (uint32_t)p->nowPos64;
-	startPos32 = nowPos32;
-
-	if (p->nowPos64 == 0)
-	{
-		uint32_t numPairs;
-		uint8_t curByte;
-		if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) == 0)
-			return Flush(p, nowPos32);
-		ReadMatchDistances(p, &numPairs);
-		RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][0], 0);
-		p->state = kLiteralNextStates[p->state];
-		curByte = p->matchFinder.GetIndexByte(p->matchFinderObj, 0 - p->additionalOffset);
-		LitEnc_Encode(&p->rc, p->litProbs, curByte);
-		p->additionalOffset--;
-		nowPos32++;
-	}
-
-	if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) != 0)
-		for (;;)
-		{
-			uint32_t pos, len, posState;
-
-			if (p->fastMode)
-				len = GetOptimumFast(p, &pos);
-			else
-				len = GetOptimum(p, nowPos32, &pos);
-
-#ifdef SHOW_STAT2
-			printf("\n pos = %4X,   len = %d   pos = %d", nowPos32, len, pos);
-#endif
-
-			posState = nowPos32 & p->pbMask;
-			if (len == 1 && pos == (uint32_t) - 1)
-			{
-				uint8_t curByte;
-				CLzmaProb *probs;
-				const uint8_t *data;
-
-				RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][posState], 0);
-				data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) -
-					   p->additionalOffset;
-				curByte = *data;
-				probs = LIT_PROBS(nowPos32, *(data - 1));
-				if (IsCharState(p->state))
-					LitEnc_Encode(&p->rc, probs, curByte);
-				else
-					LitEnc_EncodeMatched(&p->rc, probs, curByte, *(data - p->reps[0] - 1));
-				p->state = kLiteralNextStates[p->state];
-			}
-			else
-			{
-				RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][posState], 1);
-				if (pos < LZMA_NUM_REPS)
-				{
-					RangeEnc_EncodeBit(&p->rc, &p->isRep[p->state], 1);
-					if (pos == 0)
-					{
-						RangeEnc_EncodeBit(&p->rc, &p->isRepG0[p->state], 0);
-						RangeEnc_EncodeBit(&p->rc, &p->isRep0Long[p->state][posState],
-										   ((len == 1) ? 0 : 1));
-					}
-					else
-					{
-						uint32_t distance = p->reps[pos];
-						RangeEnc_EncodeBit(&p->rc, &p->isRepG0[p->state], 1);
-						if (pos == 1)
-							RangeEnc_EncodeBit(&p->rc, &p->isRepG1[p->state], 0);
-						else
-						{
-							RangeEnc_EncodeBit(&p->rc, &p->isRepG1[p->state], 1);
-							RangeEnc_EncodeBit(&p->rc, &p->isRepG2[p->state], pos - 2);
-							if (pos == 3)
-								p->reps[3] = p->reps[2];
-							p->reps[2] = p->reps[1];
-						}
-						p->reps[1] = p->reps[0];
-						p->reps[0] = distance;
-					}
-					if (len == 1)
-						p->state = kShortRepNextStates[p->state];
-					else
-					{
-						LenEnc_Encode2(&p->repLenEnc, &p->rc, len - LZMA_MATCH_LEN_MIN,
-									   posState, !p->fastMode, p->ProbPrices);
-						p->state = kRepNextStates[p->state];
-					}
-				}
-				else
-				{
-					uint32_t posSlot;
-					RangeEnc_EncodeBit(&p->rc, &p->isRep[p->state], 0);
-					p->state = kMatchNextStates[p->state];
-					LenEnc_Encode2(&p->lenEnc, &p->rc, len - LZMA_MATCH_LEN_MIN, posState,
-								   !p->fastMode, p->ProbPrices);
-					pos -= LZMA_NUM_REPS;
-					GetPosSlot(pos, posSlot);
-					RcTree_Encode(&p->rc, p->posSlotEncoder[GetLenToPosState(len)],
-								  kNumPosSlotBits, posSlot);
-
-					if (posSlot >= kStartPosModelIndex)
-					{
-						uint32_t footerBits = ((posSlot >> 1) - 1);
-						uint32_t base = ((2 | (posSlot & 1)) << footerBits);
-						uint32_t posReduced = pos - base;
-
-						if (posSlot < kEndPosModelIndex)
-							RcTree_ReverseEncode(&p->rc, p->posEncoders + base - posSlot - 1,
-												 footerBits, posReduced);
-						else
-						{
-							RangeEnc_EncodeDirectBits(&p->rc, posReduced >> kNumAlignBits,
-													  footerBits - kNumAlignBits);
-							RcTree_ReverseEncode(&p->rc, p->posAlignEncoder, kNumAlignBits,
-												 posReduced & kAlignMask);
-							p->alignPriceCount++;
-						}
-					}
-					p->reps[3] = p->reps[2];
-					p->reps[2] = p->reps[1];
-					p->reps[1] = p->reps[0];
-					p->reps[0] = pos;
-					p->matchPriceCount++;
-				}
-			}
-			p->additionalOffset -= len;
-			nowPos32 += len;
-			if (p->additionalOffset == 0)
-			{
-				uint32_t processed;
-				if (!p->fastMode)
-				{
-					if (p->matchPriceCount >= (1 << 7))
-						FillDistancesPrices(p);
-					if (p->alignPriceCount >= kAlignTableSize)
-						FillAlignPrices(p);
-				}
-				if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) == 0)
-					break;
-				processed = nowPos32 - startPos32;
-				if (useLimits)
-				{
-					if (processed + kNumOpts + 300 >= maxUnpackSize ||
-						RangeEnc_GetProcessed(&p->rc) + kNumOpts * 2 >= maxPackSize)
-						break;
-				}
-				else if (processed >= (1 << 15))
-				{
-					p->nowPos64 += nowPos32 - startPos32;
-					return CheckErrors(p);
-				}
-			}
-		}
-	p->nowPos64 += nowPos32 - startPos32;
-	return Flush(p, nowPos32);
-}
-
-#define kBigHashDicLimit ((uint32_t)1 << 24)
-
-static SRes LzmaEnc_Alloc(CLzmaEnc *p, uint32_t keepWindowSize)
-{
-	uint32_t beforeSize = kNumOpts;
-	Bool btMode;
-	if (!RangeEnc_Alloc(&p->rc))
-		return SZ_ERROR_MEM;
-	btMode = (p->matchFinderBase.btMode != 0);
-#ifdef COMPRESS_MF_MT
-	p->mtMode = (p->multiThread && !p->fastMode && btMode);
-#endif
-
-	{
-		unsigned lclp = p->lc + p->lp;
-		if (p->litProbs == 0 || p->saveState.litProbs == 0 || p->lclp != lclp)
-		{
-			LzmaEnc_FreeLits(p);
-			p->litProbs = (CLzmaProb *)malloc((0x300 << lclp) * sizeof(CLzmaProb));
-			p->saveState.litProbs = (CLzmaProb *)malloc((0x300 << lclp) * sizeof(CLzmaProb));
-			if (p->litProbs == 0 || p->saveState.litProbs == 0)
-			{
-				LzmaEnc_FreeLits(p);
-				return SZ_ERROR_MEM;
-			}
-			p->lclp = lclp;
-		}
-	}
-
-	p->matchFinderBase.bigHash = (p->dictSize > kBigHashDicLimit);
-
-	if (beforeSize + p->dictSize < keepWindowSize)
-		beforeSize = keepWindowSize - p->dictSize;
-
-#ifdef COMPRESS_MF_MT
-	if (p->mtMode)
-	{
-		RINOK(MatchFinderMt_Create(&p->matchFinderMt, p->dictSize, beforeSize, p->numFastBytes,
-								   LZMA_MATCH_LEN_MAX));
-		p->matchFinderObj = &p->matchFinderMt;
-		MatchFinderMt_CreateVTable(&p->matchFinderMt, &p->matchFinder);
-	}
-	else
-#endif
-	{
-		if (!MatchFinder_Create(&p->matchFinderBase, p->dictSize, beforeSize, p->numFastBytes,
-								LZMA_MATCH_LEN_MAX))
-			return SZ_ERROR_MEM;
-		p->matchFinderObj = &p->matchFinderBase;
-		MatchFinder_CreateVTable(&p->matchFinderBase, &p->matchFinder);
-	}
-	return SZ_OK;
-}
-
-void LzmaEnc_Init(CLzmaEnc *p)
-{
-	uint32_t i;
-	p->state = 0;
-	for (i = 0; i < LZMA_NUM_REPS; i++)
-		p->reps[i] = 0;
-
-	RangeEnc_Init(&p->rc);
-
-	for (i = 0; i < kNumStates; i++)
-	{
-		uint32_t j;
-		for (j = 0; j < LZMA_NUM_PB_STATES_MAX; j++)
-		{
-			p->isMatch[i][j] = kProbInitValue;
-			p->isRep0Long[i][j] = kProbInitValue;
-		}
-		p->isRep[i] = kProbInitValue;
-		p->isRepG0[i] = kProbInitValue;
-		p->isRepG1[i] = kProbInitValue;
-		p->isRepG2[i] = kProbInitValue;
-	}
-
-	{
-		uint32_t num = 0x300 << (p->lp + p->lc);
-		for (i = 0; i < num; i++)
-			p->litProbs[i] = kProbInitValue;
-	}
-
-	{
-		for (i = 0; i < kNumLenToPosStates; i++)
-		{
-			CLzmaProb *probs = p->posSlotEncoder[i];
-			uint32_t j;
-			for (j = 0; j < (1 << kNumPosSlotBits); j++)
-				probs[j] = kProbInitValue;
-		}
-	}
-	{
-		for (i = 0; i < kNumFullDistances - kEndPosModelIndex; i++)
-			p->posEncoders[i] = kProbInitValue;
-	}
-
-	LenEnc_Init(&p->lenEnc.p);
-	LenEnc_Init(&p->repLenEnc.p);
-
-	for (i = 0; i < (1 << kNumAlignBits); i++)
-		p->posAlignEncoder[i] = kProbInitValue;
-
-	p->optimumEndIndex = 0;
-	p->optimumCurrentIndex = 0;
-	p->additionalOffset = 0;
-
-	p->pbMask = (1 << p->pb) - 1;
-	p->lpMask = (1 << p->lp) - 1;
-}
-
-void LzmaEnc_InitPrices(CLzmaEnc *p)
-{
-	if (!p->fastMode)
-	{
-		FillDistancesPrices(p);
-		FillAlignPrices(p);
-	}
-
-	p->lenEnc.tableSize = p->repLenEnc.tableSize = p->numFastBytes + 1 - LZMA_MATCH_LEN_MIN;
-	LenPriceEnc_UpdateTables(&p->lenEnc, 1 << p->pb, p->ProbPrices);
-	LenPriceEnc_UpdateTables(&p->repLenEnc, 1 << p->pb, p->ProbPrices);
-}
-
-static SRes LzmaEnc_AllocAndInit(CLzmaEnc *p, uint32_t keepWindowSize)
-{
-	uint32_t i;
-	for (i = 0; i < (uint32_t)kDicLogSizeMaxCompress; i++)
-		if (p->dictSize <= ((uint32_t)1 << i))
-			break;
-	p->distTableSize = i * 2;
-
-	p->finished = False;
-	p->result = SZ_OK;
-	RINOK(LzmaEnc_Alloc(p, keepWindowSize));
-	LzmaEnc_Init(p);
-	LzmaEnc_InitPrices(p);
-	p->nowPos64 = 0;
-	return SZ_OK;
-}
-
-static SRes LzmaEnc_Prepare(CLzmaEncHandle pp, ISeqInStream *inStream, ISeqOutStream *outStream)
-{
-	CLzmaEnc *p = (CLzmaEnc *)pp;
-	p->inStream = inStream;
-	p->rc.outStream = outStream;
-	return LzmaEnc_AllocAndInit(p, 0);
-}
-
-SRes LzmaEnc_PrepareForLzma2(CLzmaEncHandle pp, ISeqInStream *inStream, uint32_t keepWindowSize)
-{
-	CLzmaEnc *p = (CLzmaEnc *)pp;
-	p->inStream = inStream;
-	return LzmaEnc_AllocAndInit(p, keepWindowSize);
-}
-
-static void LzmaEnc_SetInputBuf(CLzmaEnc *p, const uint8_t *src, size_t srcLen)
-{
-	p->seqBufInStream.funcTable.Read = MyRead;
-	p->seqBufInStream.data = src;
-	p->seqBufInStream.rem = srcLen;
-}
-
-SRes LzmaEnc_MemPrepare(CLzmaEncHandle pp, const uint8_t *src, size_t srcLen,
-						uint32_t keepWindowSize)
-{
-	CLzmaEnc *p = (CLzmaEnc *)pp;
-	LzmaEnc_SetInputBuf(p, src, srcLen);
-	p->inStream = &p->seqBufInStream.funcTable;
-	return LzmaEnc_AllocAndInit(p, keepWindowSize);
-}
-
-void LzmaEnc_Finish(CLzmaEncHandle pp)
-{
-#ifdef COMPRESS_MF_MT
-	CLzmaEnc *p = (CLzmaEnc *)pp;
-	if (p->mtMode)
-		MatchFinderMt_ReleaseStream(&p->matchFinderMt);
-#else
-	pp = pp;
-#endif
-}
-
-typedef struct _CSeqOutStreamBuf
-{
-	ISeqOutStream funcTable;
-	uint8_t *data;
-	size_t rem;
-	Bool overflow;
-} CSeqOutStreamBuf;
-
-static size_t MyWrite(void *pp, const void *data, size_t size)
-{
-	CSeqOutStreamBuf *p = (CSeqOutStreamBuf *)pp;
-	if (p->rem < size)
-	{
-		size = p->rem;
-		p->overflow = True;
-	}
-	memcpy(p->data, data, size);
-	p->rem -= size;
-	p->data += size;
-	return size;
-}
-
-uint32_t LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle pp)
-{
-	const CLzmaEnc *p = (CLzmaEnc *)pp;
-	return p->matchFinder.GetNumAvailableBytes(p->matchFinderObj);
-}
-
-const uint8_t *LzmaEnc_GetCurBuf(CLzmaEncHandle pp)
-{
-	const CLzmaEnc *p = (CLzmaEnc *)pp;
-	return p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset;
-}
-
-SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit, uint8_t *dest, size_t *destLen,
-							 uint32_t desiredPackSize, uint32_t *unpackSize)
-{
-	CLzmaEnc *p = (CLzmaEnc *)pp;
-	uint64_t nowPos64;
-	SRes res;
-	CSeqOutStreamBuf outStream;
-
-	outStream.funcTable.Write = MyWrite;
-	outStream.data = dest;
-	outStream.rem = *destLen;
-	outStream.overflow = False;
-
-	p->writeEndMark = False;
-	p->finished = False;
-	p->result = SZ_OK;
-
-	if (reInit)
-		LzmaEnc_Init(p);
-	LzmaEnc_InitPrices(p);
-	nowPos64 = p->nowPos64;
-	RangeEnc_Init(&p->rc);
-	p->rc.outStream = &outStream.funcTable;
-
-	res = LzmaEnc_CodeOneBlock(p, True, desiredPackSize, *unpackSize);
-
-	*unpackSize = (uint32_t)(p->nowPos64 - nowPos64);
-	*destLen -= outStream.rem;
-	if (outStream.overflow)
-		return SZ_ERROR_OUTPUT_EOF;
-
-	return res;
-}
-
-SRes LzmaEnc_Encode(CLzmaEncHandle pp, ISeqOutStream *outStream, ISeqInStream *inStream,
-					ICompressProgress *progress)
-{
-	CLzmaEnc *p = (CLzmaEnc *)pp;
-	SRes res = SZ_OK;
-
-#ifdef COMPRESS_MF_MT
-	Byte allocaDummy[0x300];
-	int i = 0;
-	for (i = 0; i < 16; i++)
-		allocaDummy[i] = (Byte)i;
-#endif
-
-	RINOK(LzmaEnc_Prepare(pp, inStream, outStream));
-
-	for (;;)
-	{
-		res = LzmaEnc_CodeOneBlock(p, False, 0, 0);
-		if (res != SZ_OK || p->finished != 0)
-			break;
-		if (progress != 0)
-		{
-			res = progress->Progress(progress, p->nowPos64, RangeEnc_GetProcessed(&p->rc));
-			if (res != SZ_OK)
-			{
-				res = SZ_ERROR_PROGRESS;
-				break;
-			}
-		}
-	}
-	LzmaEnc_Finish(pp);
-	return res;
-}
-
-SRes LzmaEnc_WriteProperties(CLzmaEncHandle pp, uint8_t *props, size_t *size)
-{
-	CLzmaEnc *p = (CLzmaEnc *)pp;
-	int i;
-	uint32_t dictSize = p->dictSize;
-	if (*size < LZMA_PROPS_SIZE)
-		return SZ_ERROR_PARAM;
-	*size = LZMA_PROPS_SIZE;
-	props[0] = (uint8_t)((p->pb * 5 + p->lp) * 9 + p->lc);
-
-	for (i = 11; i <= 30; i++)
-	{
-		if (dictSize <= ((uint32_t)2 << i))
-		{
-			dictSize = (2 << i);
-			break;
-		}
-		if (dictSize <= ((uint32_t)3 << i))
-		{
-			dictSize = (3 << i);
-			break;
-		}
-	}
-
-	for (i = 0; i < 4; i++)
-		props[1 + i] = (uint8_t)(dictSize >> (8 * i));
-	return SZ_OK;
-}
-
-SRes LzmaEnc_MemEncode(CLzmaEncHandle pp, uint8_t *dest, size_t *destLen, const uint8_t *src,
-					   size_t srcLen, int writeEndMark, ICompressProgress *progress)
-{
-	SRes res;
-	CLzmaEnc *p = (CLzmaEnc *)pp;
-
-	CSeqOutStreamBuf outStream;
-
-	LzmaEnc_SetInputBuf(p, src, srcLen);
-
-	outStream.funcTable.Write = MyWrite;
-	outStream.data = dest;
-	outStream.rem = *destLen;
-	outStream.overflow = False;
-
-	p->writeEndMark = writeEndMark;
-	res = LzmaEnc_Encode(pp, &outStream.funcTable, &p->seqBufInStream.funcTable, progress);
-
-	*destLen -= outStream.rem;
-	if (outStream.overflow)
-		return SZ_ERROR_OUTPUT_EOF;
-	return res;
-}
-
-SRes LzmaEncode(uint8_t *dest, size_t *destLen, const uint8_t *src, size_t srcLen,
-				const CLzmaEncProps *props, uint8_t *propsEncoded, size_t *propsSize,
-				int writeEndMark, ICompressProgress *progress)
-{
-	CLzmaEnc *p = (CLzmaEnc *)LzmaEnc_Create();
-	SRes res;
-	if (p == 0)
-		return SZ_ERROR_MEM;
-
-	res = LzmaEnc_SetProps(p, props);
-	if (res == SZ_OK)
-	{
-		res = LzmaEnc_WriteProperties(p, propsEncoded, propsSize);
-		if (res == SZ_OK)
-			res = LzmaEnc_MemEncode(p, dest, destLen, src, srcLen, writeEndMark, progress);
-	}
-
-	LzmaEnc_Destroy(p);
-	return res;
-}
diff --git a/depends/lzma/pavlov/LzmaEnc.h b/depends/lzma/pavlov/LzmaEnc.h
deleted file mode 100755
index 961436e4..00000000
--- a/depends/lzma/pavlov/LzmaEnc.h
+++ /dev/null
@@ -1,71 +0,0 @@
-/*  LzmaEnc.h -- LZMA Encoder
-2008-10-04 : Igor Pavlov : Public domain */
-
-#ifndef __LZMAENC_H
-#define __LZMAENC_H
-
-#include "Types.h"
-
-#define LZMA_PROPS_SIZE 5
-
-typedef struct _CLzmaEncProps
-{
-	int level;		 /*  0 <= level <= 9 */
-	uint32_t dictSize; /* (1 << 12) <= dictSize <= (1 << 27) for 32-bit version
-						(1 << 12) <= dictSize <= (1 << 30) for 64-bit version
-						 default = (1 << 24) */
-	int lc;				/* 0 <= lc <= 8, default = 3 */
-	int lp;				/* 0 <= lp <= 4, default = 0 */
-	int pb;				/* 0 <= pb <= 4, default = 2 */
-	int algo;			  /* 0 - fast, 1 - normal, default = 1 */
-	int fb;				/* 5 <= fb <= 273, default = 32 */
-	int btMode;			/* 0 - hashChain Mode, 1 - binTree mode - normal, default = 1 */
-	int numHashBytes;	  /* 2, 3 or 4, default = 4 */
-	uint32_t mc;		   /* 1 <= mc <= (1 << 30), default = 32 */
-	unsigned writeEndMark; /* 0 - do not write EOPM, 1 - write EOPM, default = 0 */
-	int numThreads;		/* 1 or 2, default = 2 */
-} CLzmaEncProps;
-
-void LzmaEncProps_Init(CLzmaEncProps *p);
-void LzmaEncProps_Normalize(CLzmaEncProps *p);
-uint32_t LzmaEncProps_GetDictSize(const CLzmaEncProps *props2);
-
-/* ---------- CLzmaEncHandle Interface ---------- */
-
-/* LzmaEnc_* functions can return the following exit codes:
-Returns:
-  SZ_OK           - OK
-  SZ_ERROR_MEM    - Memory allocation error
-  SZ_ERROR_PARAM  - Incorrect paramater in props
-  SZ_ERROR_WRITE  - Write callback error.
-  SZ_ERROR_PROGRESS - some break from progress callback
-  SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version)
-*/
-
-typedef void *CLzmaEncHandle;
-
-CLzmaEncHandle LzmaEnc_Create();
-void LzmaEnc_Destroy(CLzmaEncHandle p);
-SRes LzmaEnc_SetProps(CLzmaEncHandle p, const CLzmaEncProps *props);
-SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, uint8_t *properties, size_t *size);
-SRes LzmaEnc_Encode(CLzmaEncHandle p, ISeqOutStream *outStream, ISeqInStream *inStream,
-					ICompressProgress *progress);
-SRes LzmaEnc_MemEncode(CLzmaEncHandle p, uint8_t *dest, size_t *destLen, const uint8_t *src,
-					   size_t srcLen, int writeEndMark, ICompressProgress *progress);
-
-/* ---------- One Call Interface ---------- */
-
-/* LzmaEncode
-Return code:
-  SZ_OK               - OK
-  SZ_ERROR_MEM        - Memory allocation error
-  SZ_ERROR_PARAM      - Incorrect paramater
-  SZ_ERROR_OUTPUT_EOF - output buffer overflow
-  SZ_ERROR_THREAD     - errors in multithreading functions (only for Mt version)
-*/
-
-SRes LzmaEncode(uint8_t *dest, size_t *destLen, const uint8_t *src, size_t srcLen,
-				const CLzmaEncProps *props, uint8_t *propsEncoded, size_t *propsSize,
-				int writeEndMark, ICompressProgress *progress);
-
-#endif
diff --git a/depends/lzma/pavlov/LzmaLib.c b/depends/lzma/pavlov/LzmaLib.c
deleted file mode 100755
index 6759d69b..00000000
--- a/depends/lzma/pavlov/LzmaLib.c
+++ /dev/null
@@ -1,41 +0,0 @@
-/* LzmaLib.c -- LZMA library wrapper
-2008-08-05
-Igor Pavlov
-Public domain */
-
-#include "LzmaEnc.h"
-#include "LzmaDec.h"
-#include "LzmaLib.h"
-
-MY_STDAPI
-LzmaCompress(unsigned char *dest, size_t *destLen, const unsigned char *src, size_t srcLen,
-			 unsigned char *outProps, size_t *outPropsSize,
-			 int level,		 /* 0 <= level <= 9, default = 5 */
-			 unsigned dictSize, /* use (1 << N) or (3 << N). 4 KB < dictSize <= 128 MB */
-			 int lc,			/* 0 <= lc <= 8, default = 3  */
-			 int lp,			/* 0 <= lp <= 4, default = 0  */
-			 int pb,			/* 0 <= pb <= 4, default = 2  */
-			 int fb,			/* 5 <= fb <= 273, default = 32 */
-			 int numThreads	 /* 1 or 2, default = 2 */
-			 )
-{
-	CLzmaEncProps props;
-	LzmaEncProps_Init(&props);
-	props.level = level;
-	props.dictSize = dictSize;
-	props.lc = lc;
-	props.lp = lp;
-	props.pb = pb;
-	props.fb = fb;
-	props.numThreads = numThreads;
-
-	return LzmaEncode(dest, destLen, src, srcLen, &props, outProps, outPropsSize, 0, NULL);
-}
-
-MY_STDAPI LzmaUncompress(unsigned char *dest, size_t *destLen, const unsigned char *src,
-						 size_t *srcLen, const unsigned char *props, size_t propsSize)
-{
-	ELzmaStatus status;
-	return LzmaDecode(dest, destLen, src, srcLen, props, (unsigned)propsSize, LZMA_FINISH_ANY,
-					  &status);
-}
diff --git a/depends/lzma/pavlov/LzmaLib.h b/depends/lzma/pavlov/LzmaLib.h
deleted file mode 100755
index 804329d1..00000000
--- a/depends/lzma/pavlov/LzmaLib.h
+++ /dev/null
@@ -1,137 +0,0 @@
-/* LzmaLib.h -- LZMA library interface
-2008-08-05
-Igor Pavlov
-Public domain */
-
-#ifndef __LZMALIB_H
-#define __LZMALIB_H
-
-#include "Types.h"
-
-#ifdef __cplusplus
-#define MY_EXTERN_C extern "C"
-#else
-#define MY_EXTERN_C extern
-#endif
-
-#define MY_STDAPI MY_EXTERN_C int MY_STD_CALL
-
-#define LZMA_PROPS_SIZE 5
-
-/*
-RAM requirements for LZMA:
-  for compression:   (dictSize * 11.5 + 6 MB) + state_size
-  for decompression: dictSize + state_size
-	state_size = (4 + (1.5 << (lc + lp))) KB
-	by default (lc=3, lp=0), state_size = 16 KB.
-
-LZMA properties (5 bytes) format
-	Offset Size  Description
-	  0     1    lc, lp and pb in encoded form.
-	  1     4    dictSize (little endian).
-*/
-
-/*
-LzmaCompress
-------------
-
-outPropsSize -
-	 In:  the pointer to the size of outProps buffer; *outPropsSize = LZMA_PROPS_SIZE = 5.
-	 Out: the pointer to the size of written properties in outProps buffer; *outPropsSize =
-LZMA_PROPS_SIZE = 5.
-
-  LZMA Encoder will use defult values for any parameter, if it is
-  -1  for any from: level, loc, lp, pb, fb, numThreads
-   0  for dictSize
-
-level - compression level: 0 <= level <= 9;
-
-  level dictSize algo  fb
-	0:    16 KB   0    32
-	1:    64 KB   0    32
-	2:   256 KB   0    32
-	3:     1 MB   0    32
-	4:     4 MB   0    32
-	5:    16 MB   1    32
-	6:    32 MB   1    32
-	7+:   64 MB   1    64
-
-  The default value for "level" is 5.
-
-  algo = 0 means fast method
-  algo = 1 means normal method
-
-dictSize - The dictionary size in bytes. The maximum value is
-		128 MB = (1 << 27) bytes for 32-bit version
-		  1 GB = (1 << 30) bytes for 64-bit version
-	 The default value is 16 MB = (1 << 24) bytes.
-	 It's recommended to use the dictionary that is larger than 4 KB and
-	 that can be calculated as (1 << N) or (3 << N) sizes.
-
-lc - The number of literal context bits (high bits of previous literal).
-	 It can be in the range from 0 to 8. The default value is 3.
-	 Sometimes lc=4 gives the gain for big files.
-
-lp - The number of literal pos bits (low bits of current position for literals).
-	 It can be in the range from 0 to 4. The default value is 0.
-	 The lp switch is intended for periodical data when the period is equal to 2^lp.
-	 For example, for 32-bit (4 bytes) periodical data you can use lp=2. Often it's
-	 better to set lc=0, if you change lp switch.
-
-pb - The number of pos bits (low bits of current position).
-	 It can be in the range from 0 to 4. The default value is 2.
-	 The pb switch is intended for periodical data when the period is equal 2^pb.
-
-fb - Word size (the number of fast bytes).
-	 It can be in the range from 5 to 273. The default value is 32.
-	 Usually, a big number gives a little bit better compression ratio and
-	 slower compression process.
-
-numThreads - The number of thereads. 1 or 2. The default value is 2.
-	 Fast mode (algo = 0) can use only 1 thread.
-
-Out:
-  destLen  - processed output size
-Returns:
-  SZ_OK               - OK
-  SZ_ERROR_MEM        - Memory allocation error
-  SZ_ERROR_PARAM      - Incorrect paramater
-  SZ_ERROR_OUTPUT_EOF - output buffer overflow
-  SZ_ERROR_THREAD     - errors in multithreading functions (only for Mt version)
-*/
-
-MY_STDAPI LzmaCompress(unsigned char *dest, size_t *destLen, const unsigned char *src,
-					   size_t srcLen, unsigned char *outProps,
-					   size_t *outPropsSize, /* *outPropsSize must be = 5 */
-					   int level,			/* 0 <= level <= 9, default = 5 */
-					   unsigned dictSize,	/* default = (1 << 24) */
-					   int lc,			   /* 0 <= lc <= 8, default = 3  */
-					   int lp,			   /* 0 <= lp <= 4, default = 0  */
-					   int pb,			   /* 0 <= pb <= 4, default = 2  */
-					   int fb,			   /* 5 <= fb <= 273, default = 32 */
-					   int numThreads		/* 1 or 2, default = 2 */
-					   );
-
-/*
-LzmaUncompress
---------------
-In:
-  dest     - output data
-  destLen  - output data size
-  src      - input data
-  srcLen   - input data size
-Out:
-  destLen  - processed output size
-  srcLen   - processed input size
-Returns:
-  SZ_OK                - OK
-  SZ_ERROR_DATA        - Data error
-  SZ_ERROR_MEM         - Memory allocation arror
-  SZ_ERROR_UNSUPPORTED - Unsupported properties
-  SZ_ERROR_INPUT_EOF   - it needs more bytes in input buffer (src)
-*/
-
-MY_STDAPI LzmaUncompress(unsigned char *dest, size_t *destLen, const unsigned char *src,
-						 size_t *srcLen, const unsigned char *props, size_t propsSize);
-
-#endif
diff --git a/depends/lzma/pavlov/Types.h b/depends/lzma/pavlov/Types.h
deleted file mode 100755
index e75bcb4a..00000000
--- a/depends/lzma/pavlov/Types.h
+++ /dev/null
@@ -1,87 +0,0 @@
-/* Types.h -- Basic types
-2008-11-23 : Igor Pavlov : Public domain */
-
-#pragma once
-
-#include <stddef.h>
-#include <stdint.h>
-
-#ifdef _WIN32
-#include <windows.h>
-#endif
-
-#define SZ_OK 0
-
-#define SZ_ERROR_DATA 1
-#define SZ_ERROR_MEM 2
-#define SZ_ERROR_CRC 3
-#define SZ_ERROR_UNSUPPORTED 4
-#define SZ_ERROR_PARAM 5
-#define SZ_ERROR_INPUT_EOF 6
-#define SZ_ERROR_OUTPUT_EOF 7
-#define SZ_ERROR_READ 8
-#define SZ_ERROR_WRITE 9
-#define SZ_ERROR_PROGRESS 10
-#define SZ_ERROR_FAIL 11
-#define SZ_ERROR_THREAD 12
-
-#define SZ_ERROR_ARCHIVE 16
-#define SZ_ERROR_NO_ARCHIVE 17
-
-typedef int SRes;
-
-#ifndef RINOK
-#define RINOK(x)                                                                               \
-	{                                                                                          \
-		int __result__ = (x);                                                                  \
-		if (__result__ != 0)                                                                   \
-			return __result__;                                                                 \
-	}
-#endif
-
-typedef int Bool;
-#define True 1
-#define False 0
-
-#ifdef _MSC_VER
-
-#if _MSC_VER >= 1300
-#define MY_NO_INLINE __declspec(noinline)
-#else
-#define MY_NO_INLINE
-#endif
-
-#define MY_CDECL __cdecl
-#define MY_STD_CALL __stdcall
-#define MY_FAST_CALL MY_NO_INLINE __fastcall
-
-#else
-
-#define MY_CDECL
-#define MY_STD_CALL
-#define MY_FAST_CALL
-
-#endif
-
-/* The following interfaces use first parameter as pointer to structure */
-
-typedef struct
-{
-	SRes (*Read)(void *p, void *buf, size_t *size);
-	/* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
-	   (output(*size) < input(*size)) is allowed */
-} ISeqInStream;
-
-typedef struct
-{
-	size_t (*Write)(void *p, const void *buf, size_t size);
-	/* Returns: result - the number of actually written bytes.
-	   (result < size) means error */
-} ISeqOutStream;
-
-typedef struct
-{
-	SRes (*Progress)(void *p, uint64_t inSize, uint64_t outSize);
-	/* Returns: result. (result != SZ_OK) means break.
-	   Value (uint64_t)(int64_t)-1 for size means unknown value. */
-} ICompressProgress;
diff --git a/depends/lzma/wrapper/common_internal.c b/depends/lzma/wrapper/common_internal.c
deleted file mode 100644
index c9213ef4..00000000
--- a/depends/lzma/wrapper/common_internal.c
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Written in 2009 by Lloyd Hilaiel
- *
- * License
- *
- * All the cruft you find here is public domain.  You don't have to credit
- * anyone to use this code, but my personal request is that you mention
- * Igor Pavlov for his hard, high quality work.
- */
-
-#include "common_internal.h"
-
-static void *elzmaAlloc(void *p, size_t size)
-{
-	struct elzma_alloc_struct *as = (struct elzma_alloc_struct *)p;
-	if (as->clientMallocFunc)
-	{
-		return as->clientMallocFunc(as->clientMallocContext, size);
-	}
-	return malloc(size);
-}
-
-static void elzmaFree(void *p, void *address)
-{
-	struct elzma_alloc_struct *as = (struct elzma_alloc_struct *)p;
-	if (as->clientFreeFunc)
-	{
-		as->clientFreeFunc(as->clientMallocContext, address);
-	}
-	else
-	{
-		free(address);
-	}
-}
-
-void init_alloc_struct(struct elzma_alloc_struct *as, elzma_malloc clientMallocFunc,
-					   void *clientMallocContext, elzma_free clientFreeFunc,
-					   void *clientFreeContext)
-{
-	as->Alloc = elzmaAlloc;
-	as->Free = elzmaFree;
-	as->clientMallocFunc = clientMallocFunc;
-	as->clientMallocContext = clientMallocContext;
-	as->clientFreeFunc = clientFreeFunc;
-	as->clientFreeContext = clientFreeContext;
-}
diff --git a/depends/lzma/wrapper/common_internal.h b/depends/lzma/wrapper/common_internal.h
deleted file mode 100644
index 2c46fadf..00000000
--- a/depends/lzma/wrapper/common_internal.h
+++ /dev/null
@@ -1,60 +0,0 @@
-#ifndef __ELZMA_COMMON_INTERNAL_H__
-#define __ELZMA_COMMON_INTERNAL_H__
-
-#include "common.h"
-
-/** a structure which may be cast and passed into Igor's allocate
- *  routines */
-struct elzma_alloc_struct
-{
-	void *(*Alloc)(void *p, size_t size);
-	void (*Free)(void *p, void *address); /* address can be 0 */
-
-	elzma_malloc clientMallocFunc;
-	void *clientMallocContext;
-
-	elzma_free clientFreeFunc;
-	void *clientFreeContext;
-};
-
-/* initialize an allocation structure, may be called safely multiple
- * times */
-void init_alloc_struct(struct elzma_alloc_struct *allocStruct, elzma_malloc clientMallocFunc,
-					   void *clientMallocContext, elzma_free clientFreeFunc,
-					   void *clientFreeContext);
-
-/** superset representation of a compressed file header */
-struct elzma_file_header
-{
-	unsigned char pb;
-	unsigned char lp;
-	unsigned char lc;
-	unsigned char isStreamed;
-	long long unsigned int uncompressedSize;
-	unsigned int dictSize;
-};
-
-/** superset representation of a compressed file footer */
-struct elzma_file_footer
-{
-	unsigned int crc32;
-	long long unsigned int uncompressedSize;
-};
-
-/** a structure which encapsulates information about the particular
- *  file header and footer in use (lzip vs lzma vs (eventually) xz.
- *  The intention of this structure is to simplify compression and
- *  decompression logic by abstracting the file format details a bit.  */
-struct elzma_format_handler
-{
-	unsigned int header_size;
-	void (*init_header)(struct elzma_file_header *hdr);
-	int (*parse_header)(const unsigned char *hdrBuf, struct elzma_file_header *hdr);
-	int (*serialize_header)(unsigned char *hdrBuf, const struct elzma_file_header *hdr);
-
-	unsigned int footer_size;
-	int (*serialize_footer)(struct elzma_file_footer *ftr, unsigned char *ftrBuf);
-	int (*parse_footer)(const unsigned char *ftrBuf, struct elzma_file_footer *ftr);
-};
-
-#endif
diff --git a/depends/lzma/wrapper/compress.c b/depends/lzma/wrapper/compress.c
deleted file mode 100644
index 38ca0a68..00000000
--- a/depends/lzma/wrapper/compress.c
+++ /dev/null
@@ -1,297 +0,0 @@
-/*
- * Written in 2009 by Lloyd Hilaiel
- *
- * License
- *
- * All the cruft you find here is public domain.  You don't have to credit
- * anyone to use this code, but my personal request is that you mention
- * Igor Pavlov for his hard, high quality work.
- */
-
-#include "compress.h"
-#include "lzma_header.h"
-#include "lzip_header.h"
-#include "common_internal.h"
-
-#include "pavlov/Types.h"
-#include "pavlov/LzmaEnc.h"
-#include "pavlov/7zCrc.h"
-
-#include <string.h>
-
-struct _elzma_compress_handle
-{
-	CLzmaEncProps props;
-	CLzmaEncHandle encHand;
-	unsigned long long uncompressedSize;
-	elzma_file_format format;
-	struct elzma_alloc_struct allocStruct;
-	struct elzma_format_handler formatHandler;
-};
-
-elzma_compress_handle elzma_compress_alloc()
-{
-	elzma_compress_handle hand = malloc(sizeof(struct _elzma_compress_handle));
-	memset((void *)hand, 0, sizeof(struct _elzma_compress_handle));
-
-	/* "reasonable" defaults for props */
-	LzmaEncProps_Init(&(hand->props));
-	hand->props.lc = 3;
-	hand->props.lp = 0;
-	hand->props.pb = 2;
-	hand->props.level = 5;
-	hand->props.algo = 1;
-	hand->props.fb = 32;
-	hand->props.dictSize = 1 << 24;
-	hand->props.btMode = 1;
-	hand->props.numHashBytes = 4;
-	hand->props.mc = 32;
-	hand->props.numThreads = 1;
-	hand->props.writeEndMark = 1;
-
-	init_alloc_struct(&(hand->allocStruct), NULL, NULL, NULL, NULL);
-
-	/* default format is LZMA-Alone */
-	initializeLZMAFormatHandler(&(hand->formatHandler));
-
-	return hand;
-}
-
-void elzma_compress_free(elzma_compress_handle *hand)
-{
-	if (hand && *hand)
-	{
-		if ((*hand)->encHand)
-		{
-			LzmaEnc_Destroy((*hand)->encHand);
-		}
-	}
-	*hand = NULL;
-}
-
-int elzma_compress_config(elzma_compress_handle hand, unsigned char lc, unsigned char lp,
-						  unsigned char pb, unsigned char level, unsigned int dictionarySize,
-						  elzma_file_format format, unsigned long long uncompressedSize)
-{
-	/* XXX: validate arguments are in valid ranges */
-
-	hand->props.lc = lc;
-	hand->props.lp = lp;
-	hand->props.pb = pb;
-	hand->props.level = level;
-	hand->props.dictSize = dictionarySize;
-	hand->uncompressedSize = uncompressedSize;
-	hand->format = format;
-
-	/* default of LZMA-Alone is set at alloc time, and there are only
-	 * two possible formats */
-	if (format == ELZMA_lzip)
-	{
-		initializeLZIPFormatHandler(&(hand->formatHandler));
-	}
-
-	return ELZMA_E_OK;
-}
-
-/* use Igor's stream hooks for compression. */
-struct elzmaInStream
-{
-	SRes (*ReadPtr)(void *p, void *buf, size_t *size);
-	elzma_read_callback inputStream;
-	void *inputContext;
-	unsigned int crc32;
-	unsigned int crc32a;
-	unsigned int crc32b;
-	unsigned int crc32c;
-	int calculateCRC;
-};
-
-static SRes elzmaReadFunc(void *p, void *buf, size_t *size)
-{
-	int rv;
-	struct elzmaInStream *is = (struct elzmaInStream *)p;
-	rv = is->inputStream(is->inputContext, buf, size);
-	if (rv == 0 && *size > 0 && is->calculateCRC)
-	{
-		is->crc32 = CrcUpdate(is->crc32, buf, *size);
-	}
-	return rv;
-}
-
-struct elzmaOutStream
-{
-	size_t (*WritePtr)(void *p, const void *buf, size_t size);
-	elzma_write_callback outputStream;
-	void *outputContext;
-};
-
-static size_t elzmaWriteFunc(void *p, const void *buf, size_t size)
-{
-	struct elzmaOutStream *os = (struct elzmaOutStream *)p;
-	return os->outputStream(os->outputContext, buf, size);
-}
-
-/* use Igor's stream hooks for compression. */
-struct elzmaProgressStruct
-{
-	SRes (*Progress)(void *p, uint64_t inSize, uint64_t outSize);
-	long long unsigned int uncompressedSize;
-	elzma_progress_callback progressCallback;
-	void *progressContext;
-};
-
-#include <stdio.h>
-static SRes elzmaProgress(void *p, uint64_t inSize, uint64_t outSize)
-{
-	struct elzmaProgressStruct *ps = (struct elzmaProgressStruct *)p;
-	if (ps->progressCallback)
-	{
-		ps->progressCallback(ps->progressContext, inSize, ps->uncompressedSize);
-	}
-	return SZ_OK;
-}
-
-void elzma_compress_set_allocation_callbacks(elzma_compress_handle hand,
-											 elzma_malloc mallocFunc, void *mallocFuncContext,
-											 elzma_free freeFunc, void *freeFuncContext)
-{
-	if (hand)
-	{
-		init_alloc_struct(&(hand->allocStruct), mallocFunc, mallocFuncContext, freeFunc,
-						  freeFuncContext);
-	}
-}
-
-int elzma_compress_run(elzma_compress_handle hand, elzma_read_callback inputStream,
-					   void *inputContext, elzma_write_callback outputStream,
-					   void *outputContext, elzma_progress_callback progressCallback,
-					   void *progressContext)
-{
-	struct elzmaInStream inStreamStruct;
-	struct elzmaOutStream outStreamStruct;
-	struct elzmaProgressStruct progressStruct;
-	SRes r;
-
-	CrcGenerateTable();
-
-	if (hand == NULL || inputStream == NULL)
-		return ELZMA_E_BAD_PARAMS;
-
-	/* initialize stream structrures */
-	inStreamStruct.ReadPtr = elzmaReadFunc;
-	inStreamStruct.inputStream = inputStream;
-	inStreamStruct.inputContext = inputContext;
-	inStreamStruct.crc32 = CRC_INIT_VAL;
-	inStreamStruct.calculateCRC = (hand->formatHandler.serialize_footer != NULL);
-
-	outStreamStruct.WritePtr = elzmaWriteFunc;
-	outStreamStruct.outputStream = outputStream;
-	outStreamStruct.outputContext = outputContext;
-
-	progressStruct.Progress = elzmaProgress;
-	progressStruct.uncompressedSize = hand->uncompressedSize;
-	progressStruct.progressCallback = progressCallback;
-	progressStruct.progressContext = progressContext;
-
-	/* create an encoding object */
-	hand->encHand = LzmaEnc_Create();
-
-	if (hand->encHand == NULL)
-	{
-		return ELZMA_E_COMPRESS_ERROR;
-	}
-
-	/* inintialize with compression parameters */
-	if (SZ_OK != LzmaEnc_SetProps(hand->encHand, &(hand->props)))
-	{
-		return ELZMA_E_BAD_PARAMS;
-	}
-
-	/* verify format is sane */
-	if (ELZMA_lzma != hand->format && ELZMA_lzip != hand->format)
-	{
-		return ELZMA_E_UNSUPPORTED_FORMAT;
-	}
-
-	/* now write the compression header header */
-	{
-		unsigned char *hdr =
-			hand->allocStruct.Alloc(&(hand->allocStruct), hand->formatHandler.header_size);
-
-		struct elzma_file_header h;
-		size_t wt;
-
-		hand->formatHandler.init_header(&h);
-		h.pb = (unsigned char)hand->props.pb;
-		h.lp = (unsigned char)hand->props.lp;
-		h.lc = (unsigned char)hand->props.lc;
-		h.dictSize = hand->props.dictSize;
-		h.isStreamed = (unsigned char)(hand->uncompressedSize == 0);
-		h.uncompressedSize = hand->uncompressedSize;
-
-		hand->formatHandler.serialize_header(hdr, &h);
-
-		wt = outputStream(outputContext, (void *)hdr, hand->formatHandler.header_size);
-
-		hand->allocStruct.Free(&(hand->allocStruct), hdr);
-
-		if (wt != hand->formatHandler.header_size)
-		{
-			return ELZMA_E_OUTPUT_ERROR;
-		}
-	}
-
-	/* begin LZMA encoding */
-	/* XXX: expose encoding progress */
-	r = LzmaEnc_Encode(hand->encHand, (ISeqOutStream *)&outStreamStruct,
-					   (ISeqInStream *)&inStreamStruct, (ICompressProgress *)&progressStruct);
-
-	if (r != SZ_OK)
-		return ELZMA_E_COMPRESS_ERROR;
-
-	/* support a footer! (lzip) */
-	if (hand->formatHandler.serialize_footer != NULL && hand->formatHandler.footer_size > 0)
-	{
-		size_t wt;
-		unsigned char *ftrBuf =
-			hand->allocStruct.Alloc(&(hand->allocStruct), hand->formatHandler.footer_size);
-		struct elzma_file_footer ftr;
-		ftr.crc32 = inStreamStruct.crc32 ^ 0xFFFFFFFF;
-		ftr.uncompressedSize = hand->uncompressedSize;
-
-		hand->formatHandler.serialize_footer(&ftr, ftrBuf);
-
-		wt = outputStream(outputContext, (void *)ftrBuf, hand->formatHandler.footer_size);
-
-		hand->allocStruct.Free(&(hand->allocStruct), ftrBuf);
-
-		if (wt != hand->formatHandler.footer_size)
-		{
-			return ELZMA_E_OUTPUT_ERROR;
-		}
-	}
-
-	return ELZMA_E_OK;
-}
-
-unsigned int elzma_get_dict_size(unsigned long long size)
-{
-	int i = 13; /* 16k dict is minimum */
-
-	/* now we'll find the closes power of two with a max at 16< *
-	 * if the size is greater than 8m, we'll divide by two, all of this
-	 * is based on a quick set of emperical tests on hopefully
-	 * representative sample data */
-	if (size > (1 << 23))
-		size >>= 1;
-
-	while (size >> i)
-		i++;
-
-	if (i > 23)
-		return 1 << 23;
-
-	/* now 1 << i is greater than size, let's return either 1<<i or 1<<(i-1),
-	 * whichever is closer to size */
-	return 1 << ((((1 << i) - size) > (size - (1 << (i - 1)))) ? i - 1 : i);
-}
diff --git a/depends/lzma/wrapper/decompress.c b/depends/lzma/wrapper/decompress.c
deleted file mode 100644
index 65ff9119..00000000
--- a/depends/lzma/wrapper/decompress.c
+++ /dev/null
@@ -1,263 +0,0 @@
-/*
- * Written in 2009 by Lloyd Hilaiel
- *
- * License
- *
- * All the cruft you find here is public domain.  You don't have to credit
- * anyone to use this code, but my personal request is that you mention
- * Igor Pavlov for his hard, high quality work.
- */
-
-#include "include/decompress.h"
-#include "pavlov/LzmaDec.h"
-#include "pavlov/7zCrc.h"
-#include "common_internal.h"
-#include "lzma_header.h"
-#include "lzip_header.h"
-
-#include <string.h>
-#include <assert.h>
-
-#define ELZMA_DECOMPRESS_INPUT_BUFSIZE (1024 * 64)
-#define ELZMA_DECOMPRESS_OUTPUT_BUFSIZE (1024 * 256)
-
-/** an opaque handle to an lzma decompressor */
-struct _elzma_decompress_handle
-{
-	char inbuf[ELZMA_DECOMPRESS_INPUT_BUFSIZE];
-	char outbuf[ELZMA_DECOMPRESS_OUTPUT_BUFSIZE];
-	struct elzma_alloc_struct allocStruct;
-};
-
-elzma_decompress_handle elzma_decompress_alloc()
-{
-	elzma_decompress_handle hand = malloc(sizeof(struct _elzma_decompress_handle));
-	memset((void *)hand, 0, sizeof(struct _elzma_decompress_handle));
-	init_alloc_struct(&(hand->allocStruct), NULL, NULL, NULL, NULL);
-	return hand;
-}
-
-void elzma_decompress_set_allocation_callbacks(elzma_decompress_handle hand,
-											   elzma_malloc mallocFunc, void *mallocFuncContext,
-											   elzma_free freeFunc, void *freeFuncContext)
-{
-	if (hand)
-	{
-		init_alloc_struct(&(hand->allocStruct), mallocFunc, mallocFuncContext, freeFunc,
-						  freeFuncContext);
-	}
-}
-
-void elzma_decompress_free(elzma_decompress_handle *hand)
-{
-	if (*hand)
-		free(*hand);
-	*hand = NULL;
-}
-
-int elzma_decompress_run(elzma_decompress_handle hand, elzma_read_callback inputStream,
-						 void *inputContext, elzma_write_callback outputStream,
-						 void *outputContext, elzma_file_format format)
-{
-	unsigned long long int totalRead = 0; /* total amount read from stream */
-	unsigned int crc32 = CRC_INIT_VAL;	/* running crc32 (lzip case) */
-	CLzmaDec dec;
-	unsigned int errorCode = ELZMA_E_OK;
-	struct elzma_format_handler formatHandler;
-	struct elzma_file_header h;
-	struct elzma_file_footer f;
-
-	/* switch between supported formats */
-	if (format == ELZMA_lzma)
-	{
-		initializeLZMAFormatHandler(&formatHandler);
-	}
-	else if (format == ELZMA_lzip)
-	{
-		CrcGenerateTable();
-		initializeLZIPFormatHandler(&formatHandler);
-	}
-	else
-	{
-		return ELZMA_E_BAD_PARAMS;
-	}
-
-	/* initialize footer */
-	f.crc32 = 0;
-	f.uncompressedSize = 0;
-
-	/* initialize decoder memory */
-	memset((void *)&dec, 0, sizeof(dec));
-	LzmaDec_Init(&dec);
-
-	/* decode the header. */
-	{
-		unsigned char *hdr =
-			hand->allocStruct.Alloc(&(hand->allocStruct), formatHandler.header_size);
-
-		size_t sz = formatHandler.header_size;
-
-		formatHandler.init_header(&h);
-
-		if (inputStream(inputContext, hdr, &sz) != 0 || sz != formatHandler.header_size)
-		{
-			hand->allocStruct.Free(&(hand->allocStruct), hdr);
-			return ELZMA_E_INPUT_ERROR;
-		}
-
-		if (0 != formatHandler.parse_header(hdr, &h))
-		{
-			hand->allocStruct.Free(&(hand->allocStruct), hdr);
-			return ELZMA_E_CORRUPT_HEADER;
-		}
-
-		/* the LzmaDec_Allocate call requires 5 bytes which have
-		 * compression properties encoded in them.  In the case of
-		 * lzip, the header format does not already contain what
-		 * LzmaDec_Allocate expects, so we must craft it, silly */
-		{
-			unsigned char propsBuf[13];
-			const unsigned char *propsPtr = hdr;
-
-			if (format == ELZMA_lzip)
-			{
-				struct elzma_format_handler lzmaHand;
-				initializeLZMAFormatHandler(&lzmaHand);
-				lzmaHand.serialize_header(propsBuf, &h);
-				propsPtr = propsBuf;
-			}
-
-			/* now we're ready to allocate the decoder */
-			LzmaDec_Allocate(&dec, propsPtr, 5);
-		}
-
-		hand->allocStruct.Free(&(hand->allocStruct), hdr);
-	}
-
-	/* perform the decoding */
-	for (;;)
-	{
-		size_t dstLen = ELZMA_DECOMPRESS_OUTPUT_BUFSIZE;
-		size_t srcLen = ELZMA_DECOMPRESS_INPUT_BUFSIZE;
-		size_t amt = 0;
-		size_t bufOff = 0;
-		ELzmaStatus stat;
-
-		if (0 != inputStream(inputContext, hand->inbuf, &srcLen))
-		{
-			errorCode = ELZMA_E_INPUT_ERROR;
-			goto decompressEnd;
-		}
-
-		/* handle the case where the input prematurely finishes */
-		if (srcLen == 0)
-		{
-			errorCode = ELZMA_E_INSUFFICIENT_INPUT;
-			goto decompressEnd;
-		}
-
-		amt = srcLen;
-
-		/* handle the case where a single read buffer of compressed bytes
-		 * will translate into multiple buffers of uncompressed bytes,
-		 * with this inner loop */
-		stat = LZMA_STATUS_NOT_SPECIFIED;
-
-		while (bufOff < srcLen)
-		{
-			SRes r = LzmaDec_DecodeToBuf(&dec, (uint8_t *)hand->outbuf, &dstLen,
-										 ((uint8_t *)hand->inbuf + bufOff), &amt,
-										 LZMA_FINISH_ANY, &stat);
-
-			/* XXX deal with result code more granularly*/
-			if (r != SZ_OK)
-			{
-				errorCode = ELZMA_E_DECOMPRESS_ERROR;
-				goto decompressEnd;
-			}
-
-			/* write what we've read */
-			{
-				size_t wt;
-
-				/* if decoding lzip, update our crc32 value */
-				if (format == ELZMA_lzip && dstLen > 0)
-				{
-					crc32 = CrcUpdate(crc32, hand->outbuf, dstLen);
-				}
-				totalRead += dstLen;
-
-				wt = outputStream(outputContext, hand->outbuf, dstLen);
-				if (wt != dstLen)
-				{
-					errorCode = ELZMA_E_OUTPUT_ERROR;
-					goto decompressEnd;
-				}
-			}
-
-			/* do we have more data on the input buffer? */
-			bufOff += amt;
-			assert(bufOff <= srcLen);
-			if (bufOff >= srcLen)
-				break;
-			amt = srcLen - bufOff;
-
-			/* with lzip, we will have the footer left on the buffer! */
-			if (stat == LZMA_STATUS_FINISHED_WITH_MARK)
-			{
-				break;
-			}
-		}
-
-		/* now check status */
-		if (stat == LZMA_STATUS_FINISHED_WITH_MARK)
-		{
-			/* read a footer if one is expected and
-			 * present */
-			if (formatHandler.footer_size > 0 && amt >= formatHandler.footer_size &&
-				formatHandler.parse_footer != NULL)
-			{
-				formatHandler.parse_footer((unsigned char *)hand->inbuf + bufOff, &f);
-			}
-
-			break;
-		}
-		/* for LZMA utils,  we don't always have a finished mark */
-		if (!h.isStreamed && totalRead >= h.uncompressedSize)
-		{
-			break;
-		}
-	}
-
-	/* finish the calculated crc32 */
-	crc32 ^= 0xFFFFFFFF;
-
-	/* if we have a footer, check that the calculated crc32 matches
-	 * the encoded crc32, and that the sizes match */
-	if (formatHandler.footer_size)
-	{
-		if (f.crc32 != crc32)
-		{
-			errorCode = ELZMA_E_CRC32_MISMATCH;
-		}
-		else if (f.uncompressedSize != totalRead)
-		{
-			errorCode = ELZMA_E_SIZE_MISMATCH;
-		}
-	}
-	else if (!h.isStreamed)
-	{
-		/* if the format does not support a footer and has an uncompressed
-		 * size in the header, let's compare that with how much we actually
-		 * read */
-		if (h.uncompressedSize != totalRead)
-		{
-			errorCode = ELZMA_E_SIZE_MISMATCH;
-		}
-	}
-
-decompressEnd:
-	LzmaDec_Free(&dec);
-
-	return errorCode;
-}
diff --git a/depends/lzma/wrapper/lzip_header.c b/depends/lzma/wrapper/lzip_header.c
deleted file mode 100644
index 39872813..00000000
--- a/depends/lzma/wrapper/lzip_header.c
+++ /dev/null
@@ -1,96 +0,0 @@
-#include "lzip_header.h"
-
-#include <string.h>
-
-#define ELZMA_LZIP_HEADER_SIZE 6
-#define ELZMA_LZIP_FOOTER_SIZE 12
-
-static void initLzipHeader(struct elzma_file_header *hdr)
-{
-	memset((void *)hdr, 0, sizeof(struct elzma_file_header));
-}
-
-static int parseLzipHeader(const unsigned char *hdrBuf, struct elzma_file_header *hdr)
-{
-	if (0 != strncmp("LZIP", (char *)hdrBuf, 4))
-		return 1;
-	/* XXX: ignore version for now */
-	hdr->pb = 2;
-	hdr->lp = 0;
-	hdr->lc = 3;
-	/* unknown at this point */
-	hdr->isStreamed = 1;
-	hdr->uncompressedSize = 0;
-	hdr->dictSize = 1 << (hdrBuf[5] & 0x1F);
-	return 0;
-}
-
-static int serializeLzipHeader(unsigned char *hdrBuf, const struct elzma_file_header *hdr)
-{
-	hdrBuf[0] = 'L';
-	hdrBuf[1] = 'Z';
-	hdrBuf[2] = 'I';
-	hdrBuf[3] = 'P';
-	hdrBuf[4] = 0;
-	{
-		int r = 0;
-		while ((hdr->dictSize >> r) != 0)
-			r++;
-		hdrBuf[5] = (unsigned char)(r - 1) & 0x1F;
-	}
-	return 0;
-}
-
-static int serializeLzipFooter(struct elzma_file_footer *ftr, unsigned char *ftrBuf)
-{
-	unsigned int i = 0;
-
-	/* first crc32 */
-	for (i = 0; i < 4; i++)
-	{
-		*(ftrBuf++) = (unsigned char)(ftr->crc32 >> (i * 8));
-	}
-
-	/* next data size */
-	for (i = 0; i < 8; i++)
-	{
-		*(ftrBuf++) = (unsigned char)(ftr->uncompressedSize >> (i * 8));
-	}
-
-	/* write version 0 files, omit member length for now*/
-
-	return 0;
-}
-
-static int parseLzipFooter(const unsigned char *ftrBuf, struct elzma_file_footer *ftr)
-{
-	unsigned int i = 0;
-	ftr->crc32 = 0;
-	ftr->uncompressedSize = 0;
-
-	/* first crc32 */
-	for (i = 0; i < 4; i++)
-	{
-		ftr->crc32 += ((unsigned int)*(ftrBuf++) << (i * 8));
-	}
-
-	/* next data size */
-	for (i = 0; i < 8; i++)
-	{
-		ftr->uncompressedSize += (unsigned long long)*(ftrBuf++) << (i * 8);
-	}
-	/* read version 0 files, omit member length for now*/
-
-	return 0;
-}
-
-void initializeLZIPFormatHandler(struct elzma_format_handler *hand)
-{
-	hand->header_size = ELZMA_LZIP_HEADER_SIZE;
-	hand->init_header = initLzipHeader;
-	hand->parse_header = parseLzipHeader;
-	hand->serialize_header = serializeLzipHeader;
-	hand->footer_size = ELZMA_LZIP_FOOTER_SIZE;
-	hand->serialize_footer = serializeLzipFooter;
-	hand->parse_footer = parseLzipFooter;
-}
diff --git a/depends/lzma/wrapper/lzip_header.h b/depends/lzma/wrapper/lzip_header.h
deleted file mode 100644
index 138afa60..00000000
--- a/depends/lzma/wrapper/lzip_header.h
+++ /dev/null
@@ -1,11 +0,0 @@
-#ifndef __EASYLZMA_LZIP_HEADER__
-#define __EASYLZMA_LZIP_HEADER__
-
-#include "common_internal.h"
-
-/* lzip file format documented here:
- * http://download.savannah.gnu.org/releases-noredirect/lzip/manual/ */
-
-void initializeLZIPFormatHandler(struct elzma_format_handler *hand);
-
-#endif
diff --git a/depends/lzma/wrapper/lzma_header.c b/depends/lzma/wrapper/lzma_header.c
deleted file mode 100644
index ab32549f..00000000
--- a/depends/lzma/wrapper/lzma_header.c
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- * Written in 2009 by Lloyd Hilaiel
- *
- * License
- *
- * All the cruft you find here is public domain.  You don't have to credit
- * anyone to use this code, but my personal request is that you mention
- * Igor Pavlov for his hard, high quality work.
- */
-
-/* XXX: clean this up, it's mostly lifted from pavel */
-
-#include "lzma_header.h"
-
-#include <string.h>
-#include <assert.h>
-
-#define ELZMA_LZMA_HEADER_SIZE 13
-#define ELZMA_LZMA_PROPSBUF_SIZE 5
-
-/****************
-  Header parsing
- ****************/
-
-#ifndef UINT64_MAX
-#define UINT64_MAX ((unsigned long long)-1)
-#endif
-
-/* Parse the properties byte */
-static char lzmadec_header_properties(unsigned char *pb, unsigned char *lp, unsigned char *lc,
-									  const unsigned char c)
-{
-	/*	 pb, lp and lc are encoded into a single byte.  */
-	if (c > (9 * 5 * 5))
-		return -1;
-	*pb = c / (9 * 5);	   /* 0 <= pb <= 4 */
-	*lp = (c % (9 * 5)) / 9; /* 0 <= lp <= 4 */
-	*lc = c % 9;			 /* 0 <= lc <= 8 */
-
-	assert(*pb < 5 && *lp < 5 && *lc < 9);
-	return 0;
-}
-
-/* Parse the dictionary size (4 bytes, little endian) */
-static char lzmadec_header_dictionary(unsigned int *size, const unsigned char *buffer)
-{
-	unsigned int i;
-	*size = 0;
-	for (i = 0; i < 4; i++)
-		*size += (unsigned int)(*buffer++) << (i * 8);
-	/* The dictionary size is limited to 256 MiB (checked from
-	 * LZMA SDK 4.30) */
-	if (*size > (1 << 28))
-		return -1;
-	return 0;
-}
-
-/* Parse the uncompressed size field (8 bytes, little endian) */
-static void lzmadec_header_uncompressed(unsigned long long *size, unsigned char *is_streamed,
-										const unsigned char *buffer)
-{
-	unsigned int i;
-
-	/* Streamed files have all 64 bits set in the size field.
-	 * We don't know the uncompressed size beforehand. */
-	*is_streamed = 1; /* Assume streamed. */
-	*size = 0;
-	for (i = 0; i < 8; i++)
-	{
-		*size += (unsigned long long)buffer[i] << (i * 8);
-		if (buffer[i] != 255)
-			*is_streamed = 0;
-	}
-	assert((*is_streamed == 1 && *size == UINT64_MAX) ||
-		   (*is_streamed == 0 && *size < UINT64_MAX));
-}
-
-static void initLzmaHeader(struct elzma_file_header *hdr)
-{
-	memset((void *)hdr, 0, sizeof(struct elzma_file_header));
-}
-
-static int parseLzmaHeader(const unsigned char *hdrBuf, struct elzma_file_header *hdr)
-{
-	if (lzmadec_header_properties(&(hdr->pb), &(hdr->lp), &(hdr->lc), *hdrBuf) ||
-		lzmadec_header_dictionary(&(hdr->dictSize), hdrBuf + 1))
-	{
-		return 1;
-	}
-	lzmadec_header_uncompressed(&(hdr->uncompressedSize), &(hdr->isStreamed), hdrBuf + 5);
-
-	return 0;
-}
-
-static int serializeLzmaHeader(unsigned char *hdrBuf, const struct elzma_file_header *hdr)
-{
-	unsigned int i;
-
-	memset((void *)hdrBuf, 0, ELZMA_LZMA_HEADER_SIZE);
-
-	/* encode lc, pb, and lp */
-	*hdrBuf++ = hdr->lc + (hdr->pb * 45) + (hdr->lp * 45 * 9);
-
-	/* encode dictionary size */
-	for (i = 0; i < 4; i++)
-	{
-		*(hdrBuf++) = (unsigned char)(hdr->dictSize >> (i * 8));
-	}
-
-	/* encode uncompressed size */
-	for (i = 0; i < 8; i++)
-	{
-		if (hdr->isStreamed)
-		{
-			*(hdrBuf++) = 0xff;
-		}
-		else
-		{
-			*(hdrBuf++) = (unsigned char)(hdr->uncompressedSize >> (i * 8));
-		}
-	}
-
-	return 0;
-}
-
-void initializeLZMAFormatHandler(struct elzma_format_handler *hand)
-{
-	hand->header_size = ELZMA_LZMA_HEADER_SIZE;
-	hand->init_header = initLzmaHeader;
-	hand->parse_header = parseLzmaHeader;
-	hand->serialize_header = serializeLzmaHeader;
-	hand->footer_size = 0;
-	hand->serialize_footer = NULL;
-}
diff --git a/depends/lzma/wrapper/lzma_header.h b/depends/lzma/wrapper/lzma_header.h
deleted file mode 100644
index 6a5d7a9c..00000000
--- a/depends/lzma/wrapper/lzma_header.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef __EASYLZMA_LZMA_HEADER__
-#define __EASYLZMA_LZMA_HEADER__
-
-#include "common_internal.h"
-
-/* LZMA-Alone header format gleaned from reading Igor's code */
-
-void initializeLZMAFormatHandler(struct elzma_format_handler *hand);
-
-#endif
diff --git a/depends/lzma/wrapper/simple.c b/depends/lzma/wrapper/simple.c
deleted file mode 100644
index 98d3c285..00000000
--- a/depends/lzma/wrapper/simple.c
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * Written in 2009 by Lloyd Hilaiel
- *
- * License
- *
- * All the cruft you find here is public domain.  You don't have to credit
- * anyone to use this code, but my personal request is that you mention
- * Igor Pavlov for his hard, high quality work.
- *
- * simple.c - a wrapper around easylzma to compress/decompress to memory
- */
-
-#include "simple.h"
-
-#include <string.h>
-#include <assert.h>
-
-struct dataStream
-{
-	const unsigned char *inData;
-	size_t inLen;
-
-	unsigned char *outData;
-	size_t outLen;
-};
-
-static int inputCallback(void *ctx, void *buf, size_t *size)
-{
-	size_t rd = 0;
-	struct dataStream *ds = (struct dataStream *)ctx;
-	assert(ds != NULL);
-
-	rd = (ds->inLen < *size) ? ds->inLen : *size;
-
-	if (rd > 0)
-	{
-		memcpy(buf, (void *)ds->inData, rd);
-		ds->inData += rd;
-		ds->inLen -= rd;
-	}
-
-	*size = rd;
-
-	return 0;
-}
-
-static size_t outputCallback(void *ctx, const void *buf, size_t size)
-{
-	struct dataStream *ds = (struct dataStream *)ctx;
-	assert(ds != NULL);
-
-	if (size > 0)
-	{
-		ds->outData = realloc(ds->outData, ds->outLen + size);
-		memcpy((void *)(ds->outData + ds->outLen), buf, size);
-		ds->outLen += size;
-	}
-
-	return size;
-}
-
-int simpleCompress(elzma_file_format format, const unsigned char *inData, size_t inLen,
-				   unsigned char **outData, size_t *outLen)
-{
-	int rc;
-	elzma_compress_handle hand;
-
-	/* allocate compression handle */
-	hand = elzma_compress_alloc();
-	assert(hand != NULL);
-
-	rc = elzma_compress_config(hand, ELZMA_LC_DEFAULT, ELZMA_LP_DEFAULT, ELZMA_PB_DEFAULT, 5,
-							   (1 << 20) /* 1mb */, format, inLen);
-
-	if (rc != ELZMA_E_OK)
-	{
-		elzma_compress_free(&hand);
-		return rc;
-	}
-
-	/* now run the compression */
-	{
-		struct dataStream ds;
-		ds.inData = inData;
-		ds.inLen = inLen;
-		ds.outData = NULL;
-		ds.outLen = 0;
-
-		rc = elzma_compress_run(hand, inputCallback, (void *)&ds, outputCallback, (void *)&ds,
-								NULL, NULL);
-
-		if (rc != ELZMA_E_OK)
-		{
-			if (ds.outData != NULL)
-				free(ds.outData);
-			elzma_compress_free(&hand);
-			return rc;
-		}
-
-		*outData = ds.outData;
-		*outLen = ds.outLen;
-	}
-
-	return rc;
-}
-
-int simpleDecompress(elzma_file_format format, const unsigned char *inData, size_t inLen,
-					 unsigned char **outData, size_t *outLen)
-{
-	int rc;
-	elzma_decompress_handle hand;
-
-	hand = elzma_decompress_alloc();
-
-	/* now run the compression */
-	{
-		struct dataStream ds;
-		ds.inData = inData;
-		ds.inLen = inLen;
-		ds.outData = NULL;
-		ds.outLen = 0;
-
-		rc = elzma_decompress_run(hand, inputCallback, (void *)&ds, outputCallback, (void *)&ds,
-								  format);
-
-		if (rc != ELZMA_E_OK)
-		{
-			if (ds.outData != NULL)
-				free(ds.outData);
-			elzma_decompress_free(&hand);
-			return rc;
-		}
-
-		*outData = ds.outData;
-		*outLen = ds.outLen;
-	}
-
-	return rc;
-}
diff --git a/depends/pack200/src/bands.cpp b/depends/pack200/src/bands.cpp
index 41547ad1..6b4e8971 100644
--- a/depends/pack200/src/bands.cpp
+++ b/depends/pack200/src/bands.cpp
@@ -93,13 +93,6 @@ void band::readData(int expectedLength)
 	{
 		// must be a variable-length coding
 		assert(defc->B() > 1 && defc->L() > 0);
-		// must have already read from previous band:
-		assert(bn >= BAND_LIMIT || bn <= 0 || bn == e_cp_Utf8_big_chars ||
-			   endsWith(name, "_lo") // preceded by _hi conditional band
-			   ||
-			   bn == e_file_options // preceded by conditional band
-			   ||
-			   u->rp == u->all_bands[bn - 1].maxRP() || u->all_bands[bn - 1].defc == nullptr);
 
 		value_stream xvs;
 		coding *valc = defc;
@@ -425,7 +418,6 @@ band *band::makeBands(unpacker *u)
 		coding *defc = coding::findBySpec(bi.defc);
 		assert((defc == nullptr) == (bi.defc == -1)); // no garbage, please
 		assert(defc == nullptr || !defc->isMalloc);
-		assert(bi.bn == i); // band array consistent w/ band enum
 		b.init(u, i, defc);
 		if (bi.index > 0)
 		{
diff --git a/depends/pack200/src/unpack.cpp b/depends/pack200/src/unpack.cpp
index 722d67b5..a562d442 100644
--- a/depends/pack200/src/unpack.cpp
+++ b/depends/pack200/src/unpack.cpp
@@ -2369,13 +2369,11 @@ void unpacker::read_attrs(int attrc, int obj_count)
 	bool haveLongFlags = ad.haveLongFlags();
 
 	band &xxx_flags_hi = ad.xxx_flags_hi();
-	assert(endsWith(xxx_flags_hi.name, "_flags_hi"));
 	if (haveLongFlags)
 		xxx_flags_hi.readData(obj_count);
 	CHECK;
 
 	band &xxx_flags_lo = ad.xxx_flags_lo();
-	assert(endsWith(xxx_flags_lo.name, "_flags_lo"));
 	xxx_flags_lo.readData(obj_count);
 	CHECK;
 
@@ -2400,13 +2398,11 @@ void unpacker::read_attrs(int attrc, int obj_count)
 	xxx_flags_hi.rewind();
 
 	band &xxx_attr_count = ad.xxx_attr_count();
-	assert(endsWith(xxx_attr_count.name, "_attr_count"));
 	// There is one count element for each 1<<16 bit set in flags:
 	xxx_attr_count.readData(ad.predefCount(X_ATTR_OVERFLOW));
 	CHECK;
 
 	band &xxx_attr_indexes = ad.xxx_attr_indexes();
-	assert(endsWith(xxx_attr_indexes.name, "_attr_indexes"));
 	int overflowIndexCount = xxx_attr_count.getIntTotal();
 	xxx_attr_indexes.readData(overflowIndexCount);
 	CHECK;
@@ -4637,9 +4633,6 @@ void unpacker::write_members(int num, int attrc)
 	band &member_flags_hi = ad.xxx_flags_hi();
 	band &member_flags_lo = ad.xxx_flags_lo();
 	band &member_descr = (&member_flags_hi)[e_field_descr - e_field_flags_hi];
-	assert(endsWith(member_descr.name, "_descr"));
-	assert(endsWith(member_flags_lo.name, "_flags_lo"));
-	assert(endsWith(member_flags_lo.name, "_flags_lo"));
 	bool haveLongFlags = ad.haveLongFlags();
 
 	putu2(num);
diff --git a/depends/xz-embedded/CMakeLists.txt b/depends/xz-embedded/CMakeLists.txt
new file mode 100644
index 00000000..a71002fb
--- /dev/null
+++ b/depends/xz-embedded/CMakeLists.txt
@@ -0,0 +1,45 @@
+cmake_minimum_required(VERSION 2.6)
+project(xz-embedded)
+
+option(XZ_BUILD_BCJ "Build xz-embedded with BCJ support (native binary optimization)" OFF)
+option(XZ_BUILD_CRC64 "Build xz-embedded with CRC64 checksum support" ON)
+option(XZ_BUILD_MINIDEC "Build a tiny utility that decompresses xz streams" ON)
+
+set(CMAKE_C_FLAGS "-std=c99")
+
+include_directories(include)
+
+set(XZ_SOURCES
+include/xz.h
+src/xz_config.h
+src/xz_crc32.c
+src/xz_dec_lzma2.c
+src/xz_dec_stream.c
+src/xz_lzma2.h
+src/xz_private.h
+src/xz_stream.h
+)
+
+# checksum checks
+add_definitions(-DXZ_DEC_ANY_CHECK)
+if(XZ_BUILD_CRC64)
+	add_definitions(-DXZ_USE_CRC64)
+	LIST(APPEND XZ_SOURCES src/xz_crc64.c)
+endif()
+# TODO: add SHA256
+
+# uncomment these,  if required.
+if(XZ_BUILD_BCJ)
+	add_definitions(-DXZ_DEC_X86 -DXZ_DEC_POWERPC -DXZ_DEC_IA64)
+	add_definitions(-DXZ_DEC_ARM -DXZ_DEC_ARMTHUMB -DXZ_DEC_SPARC)
+	LIST(APPEND XZ_SOURCES src/xz_dec_bcj.c)
+endif()
+
+# Static link!
+ADD_DEFINITIONS(-DXZ_STATIC)
+
+add_definitions(-DXZ_LIBRARY)
+
+add_library(xz-embedded SHARED ${XZ_SOURCES})
+add_executable(xzminidec xzminidec.c)
+target_link_libraries(xzminidec xz-embedded)
diff --git a/depends/xz-embedded/include/xz.h b/depends/xz-embedded/include/xz.h
new file mode 100644
index 00000000..0a4b38d3
--- /dev/null
+++ b/depends/xz-embedded/include/xz.h
@@ -0,0 +1,304 @@
+/*
+ * XZ decompressor
+ *
+ * Authors: Lasse Collin <lasse.collin@tukaani.org>
+ *          Igor Pavlov <http://7-zip.org/>
+ *
+ * This file has been put into the public domain.
+ * You can do whatever you want with this file.
+ */
+
+#ifndef XZ_H
+#define XZ_H
+
+#ifdef __KERNEL__
+#	include <linux/stddef.h>
+#	include <linux/types.h>
+#else
+#	include <stddef.h>
+#	include <stdint.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* In Linux, this is used to make extern functions static when needed. */
+#ifndef XZ_EXTERN
+#	define XZ_EXTERN extern
+#endif
+
+/**
+ * enum xz_mode - Operation mode
+ *
+ * @XZ_SINGLE:              Single-call mode. This uses less RAM than
+ *                          than multi-call modes, because the LZMA2
+ *                          dictionary doesn't need to be allocated as
+ *                          part of the decoder state. All required data
+ *                          structures are allocated at initialization,
+ *                          so xz_dec_run() cannot return XZ_MEM_ERROR.
+ * @XZ_PREALLOC:            Multi-call mode with preallocated LZMA2
+ *                          dictionary buffer. All data structures are
+ *                          allocated at initialization, so xz_dec_run()
+ *                          cannot return XZ_MEM_ERROR.
+ * @XZ_DYNALLOC:            Multi-call mode. The LZMA2 dictionary is
+ *                          allocated once the required size has been
+ *                          parsed from the stream headers. If the
+ *                          allocation fails, xz_dec_run() will return
+ *                          XZ_MEM_ERROR.
+ *
+ * It is possible to enable support only for a subset of the above
+ * modes at compile time by defining XZ_DEC_SINGLE, XZ_DEC_PREALLOC,
+ * or XZ_DEC_DYNALLOC. The xz_dec kernel module is always compiled
+ * with support for all operation modes, but the preboot code may
+ * be built with fewer features to minimize code size.
+ */
+enum xz_mode {
+	XZ_SINGLE,
+	XZ_PREALLOC,
+	XZ_DYNALLOC
+};
+
+/**
+ * enum xz_ret - Return codes
+ * @XZ_OK:                  Everything is OK so far. More input or more
+ *                          output space is required to continue. This
+ *                          return code is possible only in multi-call mode
+ *                          (XZ_PREALLOC or XZ_DYNALLOC).
+ * @XZ_STREAM_END:          Operation finished successfully.
+ * @XZ_UNSUPPORTED_CHECK:   Integrity check type is not supported. Decoding
+ *                          is still possible in multi-call mode by simply
+ *                          calling xz_dec_run() again.
+ *                          Note that this return value is used only if
+ *                          XZ_DEC_ANY_CHECK was defined at build time,
+ *                          which is not used in the kernel. Unsupported
+ *                          check types return XZ_OPTIONS_ERROR if
+ *                          XZ_DEC_ANY_CHECK was not defined at build time.
+ * @XZ_MEM_ERROR:           Allocating memory failed. This return code is
+ *                          possible only if the decoder was initialized
+ *                          with XZ_DYNALLOC. The amount of memory that was
+ *                          tried to be allocated was no more than the
+ *                          dict_max argument given to xz_dec_init().
+ * @XZ_MEMLIMIT_ERROR:      A bigger LZMA2 dictionary would be needed than
+ *                          allowed by the dict_max argument given to
+ *                          xz_dec_init(). This return value is possible
+ *                          only in multi-call mode (XZ_PREALLOC or
+ *                          XZ_DYNALLOC); the single-call mode (XZ_SINGLE)
+ *                          ignores the dict_max argument.
+ * @XZ_FORMAT_ERROR:        File format was not recognized (wrong magic
+ *                          bytes).
+ * @XZ_OPTIONS_ERROR:       This implementation doesn't support the requested
+ *                          compression options. In the decoder this means
+ *                          that the header CRC32 matches, but the header
+ *                          itself specifies something that we don't support.
+ * @XZ_DATA_ERROR:          Compressed data is corrupt.
+ * @XZ_BUF_ERROR:           Cannot make any progress. Details are slightly
+ *                          different between multi-call and single-call
+ *                          mode; more information below.
+ *
+ * In multi-call mode, XZ_BUF_ERROR is returned when two consecutive calls
+ * to XZ code cannot consume any input and cannot produce any new output.
+ * This happens when there is no new input available, or the output buffer
+ * is full while at least one output byte is still pending. Assuming your
+ * code is not buggy, you can get this error only when decoding a compressed
+ * stream that is truncated or otherwise corrupt.
+ *
+ * In single-call mode, XZ_BUF_ERROR is returned only when the output buffer
+ * is too small or the compressed input is corrupt in a way that makes the
+ * decoder produce more output than the caller expected. When it is
+ * (relatively) clear that the compressed input is truncated, XZ_DATA_ERROR
+ * is used instead of XZ_BUF_ERROR.
+ */
+enum xz_ret {
+	XZ_OK,
+	XZ_STREAM_END,
+	XZ_UNSUPPORTED_CHECK,
+	XZ_MEM_ERROR,
+	XZ_MEMLIMIT_ERROR,
+	XZ_FORMAT_ERROR,
+	XZ_OPTIONS_ERROR,
+	XZ_DATA_ERROR,
+	XZ_BUF_ERROR
+};
+
+/**
+ * struct xz_buf - Passing input and output buffers to XZ code
+ * @in:         Beginning of the input buffer. This may be NULL if and only
+ *              if in_pos is equal to in_size.
+ * @in_pos:     Current position in the input buffer. This must not exceed
+ *              in_size.
+ * @in_size:    Size of the input buffer
+ * @out:        Beginning of the output buffer. This may be NULL if and only
+ *              if out_pos is equal to out_size.
+ * @out_pos:    Current position in the output buffer. This must not exceed
+ *              out_size.
+ * @out_size:   Size of the output buffer
+ *
+ * Only the contents of the output buffer from out[out_pos] onward, and
+ * the variables in_pos and out_pos are modified by the XZ code.
+ */
+struct xz_buf {
+	const uint8_t *in;
+	size_t in_pos;
+	size_t in_size;
+
+	uint8_t *out;
+	size_t out_pos;
+	size_t out_size;
+};
+
+/**
+ * struct xz_dec - Opaque type to hold the XZ decoder state
+ */
+struct xz_dec;
+
+/**
+ * xz_dec_init() - Allocate and initialize a XZ decoder state
+ * @mode:       Operation mode
+ * @dict_max:   Maximum size of the LZMA2 dictionary (history buffer) for
+ *              multi-call decoding. This is ignored in single-call mode
+ *              (mode == XZ_SINGLE). LZMA2 dictionary is always 2^n bytes
+ *              or 2^n + 2^(n-1) bytes (the latter sizes are less common
+ *              in practice), so other values for dict_max don't make sense.
+ *              In the kernel, dictionary sizes of 64 KiB, 128 KiB, 256 KiB,
+ *              512 KiB, and 1 MiB are probably the only reasonable values,
+ *              except for kernel and initramfs images where a bigger
+ *              dictionary can be fine and useful.
+ *
+ * Single-call mode (XZ_SINGLE): xz_dec_run() decodes the whole stream at
+ * once. The caller must provide enough output space or the decoding will
+ * fail. The output space is used as the dictionary buffer, which is why
+ * there is no need to allocate the dictionary as part of the decoder's
+ * internal state.
+ *
+ * Because the output buffer is used as the workspace, streams encoded using
+ * a big dictionary are not a problem in single-call mode. It is enough that
+ * the output buffer is big enough to hold the actual uncompressed data; it
+ * can be smaller than the dictionary size stored in the stream headers.
+ *
+ * Multi-call mode with preallocated dictionary (XZ_PREALLOC): dict_max bytes
+ * of memory is preallocated for the LZMA2 dictionary. This way there is no
+ * risk that xz_dec_run() could run out of memory, since xz_dec_run() will
+ * never allocate any memory. Instead, if the preallocated dictionary is too
+ * small for decoding the given input stream, xz_dec_run() will return
+ * XZ_MEMLIMIT_ERROR. Thus, it is important to know what kind of data will be
+ * decoded to avoid allocating excessive amount of memory for the dictionary.
+ *
+ * Multi-call mode with dynamically allocated dictionary (XZ_DYNALLOC):
+ * dict_max specifies the maximum allowed dictionary size that xz_dec_run()
+ * may allocate once it has parsed the dictionary size from the stream
+ * headers. This way excessive allocations can be avoided while still
+ * limiting the maximum memory usage to a sane value to prevent running the
+ * system out of memory when decompressing streams from untrusted sources.
+ *
+ * On success, xz_dec_init() returns a pointer to struct xz_dec, which is
+ * ready to be used with xz_dec_run(). If memory allocation fails,
+ * xz_dec_init() returns NULL.
+ */
+XZ_EXTERN struct xz_dec *xz_dec_init(enum xz_mode mode, uint32_t dict_max);
+
+/**
+ * xz_dec_run() - Run the XZ decoder
+ * @s:          Decoder state allocated using xz_dec_init()
+ * @b:          Input and output buffers
+ *
+ * The possible return values depend on build options and operation mode.
+ * See enum xz_ret for details.
+ *
+ * Note that if an error occurs in single-call mode (return value is not
+ * XZ_STREAM_END), b->in_pos and b->out_pos are not modified and the
+ * contents of the output buffer from b->out[b->out_pos] onward are
+ * undefined. This is true even after XZ_BUF_ERROR, because with some filter
+ * chains, there may be a second pass over the output buffer, and this pass
+ * cannot be properly done if the output buffer is truncated. Thus, you
+ * cannot give the single-call decoder a too small buffer and then expect to
+ * get that amount valid data from the beginning of the stream. You must use
+ * the multi-call decoder if you don't want to uncompress the whole stream.
+ */
+XZ_EXTERN enum xz_ret xz_dec_run(struct xz_dec *s, struct xz_buf *b);
+
+/**
+ * xz_dec_reset() - Reset an already allocated decoder state
+ * @s:          Decoder state allocated using xz_dec_init()
+ *
+ * This function can be used to reset the multi-call decoder state without
+ * freeing and reallocating memory with xz_dec_end() and xz_dec_init().
+ *
+ * In single-call mode, xz_dec_reset() is always called in the beginning of
+ * xz_dec_run(). Thus, explicit call to xz_dec_reset() is useful only in
+ * multi-call mode.
+ */
+XZ_EXTERN void xz_dec_reset(struct xz_dec *s);
+
+/**
+ * xz_dec_end() - Free the memory allocated for the decoder state
+ * @s:          Decoder state allocated using xz_dec_init(). If s is NULL,
+ *              this function does nothing.
+ */
+XZ_EXTERN void xz_dec_end(struct xz_dec *s);
+
+/*
+ * Standalone build (userspace build or in-kernel build for boot time use)
+ * needs a CRC32 implementation. For normal in-kernel use, kernel's own
+ * CRC32 module is used instead, and users of this module don't need to
+ * care about the functions below.
+ */
+#ifndef XZ_INTERNAL_CRC32
+#	ifdef __KERNEL__
+#		define XZ_INTERNAL_CRC32 0
+#	else
+#		define XZ_INTERNAL_CRC32 1
+#	endif
+#endif
+
+/*
+ * If CRC64 support has been enabled with XZ_USE_CRC64, a CRC64
+ * implementation is needed too.
+ */
+#ifndef XZ_USE_CRC64
+#	undef XZ_INTERNAL_CRC64
+#	define XZ_INTERNAL_CRC64 0
+#endif
+#ifndef XZ_INTERNAL_CRC64
+#	ifdef __KERNEL__
+#		error Using CRC64 in the kernel has not been implemented.
+#	else
+#		define XZ_INTERNAL_CRC64 1
+#	endif
+#endif
+
+#if XZ_INTERNAL_CRC32
+/*
+ * This must be called before any other xz_* function to initialize
+ * the CRC32 lookup table.
+ */
+XZ_EXTERN void xz_crc32_init(void);
+
+/*
+ * Update CRC32 value using the polynomial from IEEE-802.3. To start a new
+ * calculation, the third argument must be zero. To continue the calculation,
+ * the previously returned value is passed as the third argument.
+ */
+XZ_EXTERN uint32_t xz_crc32(const uint8_t *buf, size_t size, uint32_t crc);
+#endif
+
+#if XZ_INTERNAL_CRC64
+/*
+ * This must be called before any other xz_* function (except xz_crc32_init())
+ * to initialize the CRC64 lookup table.
+ */
+XZ_EXTERN void xz_crc64_init(void);
+
+/*
+ * Update CRC64 value using the polynomial from ECMA-182. To start a new
+ * calculation, the third argument must be zero. To continue the calculation,
+ * the previously returned value is passed as the third argument.
+ */
+XZ_EXTERN uint64_t xz_crc64(const uint8_t *buf, size_t size, uint64_t crc);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/depends/xz-embedded/src/xz_config.h b/depends/xz-embedded/src/xz_config.h
new file mode 100644
index 00000000..eb9dac1a
--- /dev/null
+++ b/depends/xz-embedded/src/xz_config.h
@@ -0,0 +1,124 @@
+/*
+ * Private includes and definitions for userspace use of XZ Embedded
+ *
+ * Author: Lasse Collin <lasse.collin@tukaani.org>
+ *
+ * This file has been put into the public domain.
+ * You can do whatever you want with this file.
+ */
+
+#ifndef XZ_CONFIG_H
+#define XZ_CONFIG_H
+
+/* Uncomment to enable CRC64 support. */
+/* #define XZ_USE_CRC64 */
+
+/* Uncomment as needed to enable BCJ filter decoders. */
+/* #define XZ_DEC_X86 */
+/* #define XZ_DEC_POWERPC */
+/* #define XZ_DEC_IA64 */
+/* #define XZ_DEC_ARM */
+/* #define XZ_DEC_ARMTHUMB */
+/* #define XZ_DEC_SPARC */
+
+/*
+ * MSVC doesn't support modern C but XZ Embedded is mostly C89
+ * so these are enough.
+ */
+#ifdef _MSC_VER
+typedef unsigned char bool;
+#	define true 1
+#	define false 0
+#	define inline __inline
+#else
+#	include <stdbool.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "xz.h"
+
+#define kmalloc(size, flags) malloc(size)
+#define kfree(ptr) free(ptr)
+#define vmalloc(size) malloc(size)
+#define vfree(ptr) free(ptr)
+
+#define memeq(a, b, size) (memcmp(a, b, size) == 0)
+#define memzero(buf, size) memset(buf, 0, size)
+
+#ifndef min
+#	define min(x, y) ((x) < (y) ? (x) : (y))
+#endif
+#define min_t(type, x, y) min(x, y)
+
+/*
+ * Some functions have been marked with __always_inline to keep the
+ * performance reasonable even when the compiler is optimizing for
+ * small code size. You may be able to save a few bytes by #defining
+ * __always_inline to plain inline, but don't complain if the code
+ * becomes slow.
+ *
+ * NOTE: System headers on GNU/Linux may #define this macro already,
+ * so if you want to change it, you need to #undef it first.
+ */
+#ifndef __always_inline
+#	ifdef __GNUC__
+#		define __always_inline \
+			inline __attribute__((__always_inline__))
+#	else
+#		define __always_inline inline
+#	endif
+#endif
+
+/* Inline functions to access unaligned unsigned 32-bit integers */
+#ifndef get_unaligned_le32
+static inline uint32_t get_unaligned_le32(const uint8_t *buf)
+{
+	return (uint32_t)buf[0]
+			| ((uint32_t)buf[1] << 8)
+			| ((uint32_t)buf[2] << 16)
+			| ((uint32_t)buf[3] << 24);
+}
+#endif
+
+#ifndef get_unaligned_be32
+static inline uint32_t get_unaligned_be32(const uint8_t *buf)
+{
+	return (uint32_t)(buf[0] << 24)
+			| ((uint32_t)buf[1] << 16)
+			| ((uint32_t)buf[2] << 8)
+			| (uint32_t)buf[3];
+}
+#endif
+
+#ifndef put_unaligned_le32
+static inline void put_unaligned_le32(uint32_t val, uint8_t *buf)
+{
+	buf[0] = (uint8_t)val;
+	buf[1] = (uint8_t)(val >> 8);
+	buf[2] = (uint8_t)(val >> 16);
+	buf[3] = (uint8_t)(val >> 24);
+}
+#endif
+
+#ifndef put_unaligned_be32
+static inline void put_unaligned_be32(uint32_t val, uint8_t *buf)
+{
+	buf[0] = (uint8_t)(val >> 24);
+	buf[1] = (uint8_t)(val >> 16);
+	buf[2] = (uint8_t)(val >> 8);
+	buf[3] = (uint8_t)val;
+}
+#endif
+
+/*
+ * Use get_unaligned_le32() also for aligned access for simplicity. On
+ * little endian systems, #define get_le32(ptr) (*(const uint32_t *)(ptr))
+ * could save a few bytes in code size.
+ */
+#ifndef get_le32
+#	define get_le32 get_unaligned_le32
+#endif
+
+#endif
diff --git a/depends/xz-embedded/src/xz_crc32.c b/depends/xz-embedded/src/xz_crc32.c
new file mode 100644
index 00000000..34532d14
--- /dev/null
+++ b/depends/xz-embedded/src/xz_crc32.c
@@ -0,0 +1,59 @@
+/*
+ * CRC32 using the polynomial from IEEE-802.3
+ *
+ * Authors: Lasse Collin <lasse.collin@tukaani.org>
+ *          Igor Pavlov <http://7-zip.org/>
+ *
+ * This file has been put into the public domain.
+ * You can do whatever you want with this file.
+ */
+
+/*
+ * This is not the fastest implementation, but it is pretty compact.
+ * The fastest versions of xz_crc32() on modern CPUs without hardware
+ * accelerated CRC instruction are 3-5 times as fast as this version,
+ * but they are bigger and use more memory for the lookup table.
+ */
+
+#include "xz_private.h"
+
+/*
+ * STATIC_RW_DATA is used in the pre-boot environment on some architectures.
+ * See <linux/decompress/mm.h> for details.
+ */
+#ifndef STATIC_RW_DATA
+#	define STATIC_RW_DATA static
+#endif
+
+STATIC_RW_DATA uint32_t xz_crc32_table[256];
+
+XZ_EXTERN void xz_crc32_init(void)
+{
+	const uint32_t poly = 0xEDB88320;
+
+	uint32_t i;
+	uint32_t j;
+	uint32_t r;
+
+	for (i = 0; i < 256; ++i) {
+		r = i;
+		for (j = 0; j < 8; ++j)
+			r = (r >> 1) ^ (poly & ~((r & 1) - 1));
+
+		xz_crc32_table[i] = r;
+	}
+
+	return;
+}
+
+XZ_EXTERN uint32_t xz_crc32(const uint8_t *buf, size_t size, uint32_t crc)
+{
+	crc = ~crc;
+
+	while (size != 0) {
+		crc = xz_crc32_table[*buf++ ^ (crc & 0xFF)] ^ (crc >> 8);
+		--size;
+	}
+
+	return ~crc;
+}
diff --git a/depends/xz-embedded/src/xz_crc64.c b/depends/xz-embedded/src/xz_crc64.c
new file mode 100644
index 00000000..ca1caee8
--- /dev/null
+++ b/depends/xz-embedded/src/xz_crc64.c
@@ -0,0 +1,50 @@
+/*
+ * CRC64 using the polynomial from ECMA-182
+ *
+ * This file is similar to xz_crc32.c. See the comments there.
+ *
+ * Authors: Lasse Collin <lasse.collin@tukaani.org>
+ *          Igor Pavlov <http://7-zip.org/>
+ *
+ * This file has been put into the public domain.
+ * You can do whatever you want with this file.
+ */
+
+#include "xz_private.h"
+
+#ifndef STATIC_RW_DATA
+#	define STATIC_RW_DATA static
+#endif
+
+STATIC_RW_DATA uint64_t xz_crc64_table[256];
+
+XZ_EXTERN void xz_crc64_init(void)
+{
+	const uint64_t poly = 0xC96C5795D7870F42;
+
+	uint32_t i;
+	uint32_t j;
+	uint64_t r;
+
+	for (i = 0; i < 256; ++i) {
+		r = i;
+		for (j = 0; j < 8; ++j)
+			r = (r >> 1) ^ (poly & ~((r & 1) - 1));
+
+		xz_crc64_table[i] = r;
+	}
+
+	return;
+}
+
+XZ_EXTERN uint64_t xz_crc64(const uint8_t *buf, size_t size, uint64_t crc)
+{
+	crc = ~crc;
+
+	while (size != 0) {
+		crc = xz_crc64_table[*buf++ ^ (crc & 0xFF)] ^ (crc >> 8);
+		--size;
+	}
+
+	return ~crc;
+}
diff --git a/depends/xz-embedded/src/xz_dec_bcj.c b/depends/xz-embedded/src/xz_dec_bcj.c
new file mode 100644
index 00000000..a768e6d2
--- /dev/null
+++ b/depends/xz-embedded/src/xz_dec_bcj.c
@@ -0,0 +1,574 @@
+/*
+ * Branch/Call/Jump (BCJ) filter decoders
+ *
+ * Authors: Lasse Collin <lasse.collin@tukaani.org>
+ *          Igor Pavlov <http://7-zip.org/>
+ *
+ * This file has been put into the public domain.
+ * You can do whatever you want with this file.
+ */
+
+#include "xz_private.h"
+
+/*
+ * The rest of the file is inside this ifdef. It makes things a little more
+ * convenient when building without support for any BCJ filters.
+ */
+#ifdef XZ_DEC_BCJ
+
+struct xz_dec_bcj {
+	/* Type of the BCJ filter being used */
+	enum {
+		BCJ_X86 = 4,        /* x86 or x86-64 */
+		BCJ_POWERPC = 5,    /* Big endian only */
+		BCJ_IA64 = 6,       /* Big or little endian */
+		BCJ_ARM = 7,        /* Little endian only */
+		BCJ_ARMTHUMB = 8,   /* Little endian only */
+		BCJ_SPARC = 9       /* Big or little endian */
+	} type;
+
+	/*
+	 * Return value of the next filter in the chain. We need to preserve
+	 * this information across calls, because we must not call the next
+	 * filter anymore once it has returned XZ_STREAM_END.
+	 */
+	enum xz_ret ret;
+
+	/* True if we are operating in single-call mode. */
+	bool single_call;
+
+	/*
+	 * Absolute position relative to the beginning of the uncompressed
+	 * data (in a single .xz Block). We care only about the lowest 32
+	 * bits so this doesn't need to be uint64_t even with big files.
+	 */
+	uint32_t pos;
+
+	/* x86 filter state */
+	uint32_t x86_prev_mask;
+
+	/* Temporary space to hold the variables from struct xz_buf */
+	uint8_t *out;
+	size_t out_pos;
+	size_t out_size;
+
+	struct {
+		/* Amount of already filtered data in the beginning of buf */
+		size_t filtered;
+
+		/* Total amount of data currently stored in buf  */
+		size_t size;
+
+		/*
+		 * Buffer to hold a mix of filtered and unfiltered data. This
+		 * needs to be big enough to hold Alignment + 2 * Look-ahead:
+		 *
+		 * Type         Alignment   Look-ahead
+		 * x86              1           4
+		 * PowerPC          4           0
+		 * IA-64           16           0
+		 * ARM              4           0
+		 * ARM-Thumb        2           2
+		 * SPARC            4           0
+		 */
+		uint8_t buf[16];
+	} temp;
+};
+
+#ifdef XZ_DEC_X86
+/*
+ * This is used to test the most significant byte of a memory address
+ * in an x86 instruction.
+ */
+static inline int bcj_x86_test_msbyte(uint8_t b)
+{
+	return b == 0x00 || b == 0xFF;
+}
+
+static size_t bcj_x86(struct xz_dec_bcj *s, uint8_t *buf, size_t size)
+{
+	static const bool mask_to_allowed_status[8]
+		= { true, true, true, false, true, false, false, false };
+
+	static const uint8_t mask_to_bit_num[8] = { 0, 1, 2, 2, 3, 3, 3, 3 };
+
+	size_t i;
+	size_t prev_pos = (size_t)-1;
+	uint32_t prev_mask = s->x86_prev_mask;
+	uint32_t src;
+	uint32_t dest;
+	uint32_t j;
+	uint8_t b;
+
+	if (size <= 4)
+		return 0;
+
+	size -= 4;
+	for (i = 0; i < size; ++i) {
+		if ((buf[i] & 0xFE) != 0xE8)
+			continue;
+
+		prev_pos = i - prev_pos;
+		if (prev_pos > 3) {
+			prev_mask = 0;
+		} else {
+			prev_mask = (prev_mask << (prev_pos - 1)) & 7;
+			if (prev_mask != 0) {
+				b = buf[i + 4 - mask_to_bit_num[prev_mask]];
+				if (!mask_to_allowed_status[prev_mask]
+						|| bcj_x86_test_msbyte(b)) {
+					prev_pos = i;
+					prev_mask = (prev_mask << 1) | 1;
+					continue;
+				}
+			}
+		}
+
+		prev_pos = i;
+
+		if (bcj_x86_test_msbyte(buf[i + 4])) {
+			src = get_unaligned_le32(buf + i + 1);
+			while (true) {
+				dest = src - (s->pos + (uint32_t)i + 5);
+				if (prev_mask == 0)
+					break;
+
+				j = mask_to_bit_num[prev_mask] * 8;
+				b = (uint8_t)(dest >> (24 - j));
+				if (!bcj_x86_test_msbyte(b))
+					break;
+
+				src = dest ^ (((uint32_t)1 << (32 - j)) - 1);
+			}
+
+			dest &= 0x01FFFFFF;
+			dest |= (uint32_t)0 - (dest & 0x01000000);
+			put_unaligned_le32(dest, buf + i + 1);
+			i += 4;
+		} else {
+			prev_mask = (prev_mask << 1) | 1;
+		}
+	}
+
+	prev_pos = i - prev_pos;
+	s->x86_prev_mask = prev_pos > 3 ? 0 : prev_mask << (prev_pos - 1);
+	return i;
+}
+#endif
+
+#ifdef XZ_DEC_POWERPC
+static size_t bcj_powerpc(struct xz_dec_bcj *s, uint8_t *buf, size_t size)
+{
+	size_t i;
+	uint32_t instr;
+
+	for (i = 0; i + 4 <= size; i += 4) {
+		instr = get_unaligned_be32(buf + i);
+		if ((instr & 0xFC000003) == 0x48000001) {
+			instr &= 0x03FFFFFC;
+			instr -= s->pos + (uint32_t)i;
+			instr &= 0x03FFFFFC;
+			instr |= 0x48000001;
+			put_unaligned_be32(instr, buf + i);
+		}
+	}
+
+	return i;
+}
+#endif
+
+#ifdef XZ_DEC_IA64
+static size_t bcj_ia64(struct xz_dec_bcj *s, uint8_t *buf, size_t size)
+{
+	static const uint8_t branch_table[32] = {
+		0, 0, 0, 0, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 0,
+		4, 4, 6, 6, 0, 0, 7, 7,
+		4, 4, 0, 0, 4, 4, 0, 0
+	};
+
+	/*
+	 * The local variables take a little bit stack space, but it's less
+	 * than what LZMA2 decoder takes, so it doesn't make sense to reduce
+	 * stack usage here without doing that for the LZMA2 decoder too.
+	 */
+
+	/* Loop counters */
+	size_t i;
+	size_t j;
+
+	/* Instruction slot (0, 1, or 2) in the 128-bit instruction word */
+	uint32_t slot;
+
+	/* Bitwise offset of the instruction indicated by slot */
+	uint32_t bit_pos;
+
+	/* bit_pos split into byte and bit parts */
+	uint32_t byte_pos;
+	uint32_t bit_res;
+
+	/* Address part of an instruction */
+	uint32_t addr;
+
+	/* Mask used to detect which instructions to convert */
+	uint32_t mask;
+
+	/* 41-bit instruction stored somewhere in the lowest 48 bits */
+	uint64_t instr;
+
+	/* Instruction normalized with bit_res for easier manipulation */
+	uint64_t norm;
+
+	for (i = 0; i + 16 <= size; i += 16) {
+		mask = branch_table[buf[i] & 0x1F];
+		for (slot = 0, bit_pos = 5; slot < 3; ++slot, bit_pos += 41) {
+			if (((mask >> slot) & 1) == 0)
+				continue;
+
+			byte_pos = bit_pos >> 3;
+			bit_res = bit_pos & 7;
+			instr = 0;
+			for (j = 0; j < 6; ++j)
+				instr |= (uint64_t)(buf[i + j + byte_pos])
+						<< (8 * j);
+
+			norm = instr >> bit_res;
+
+			if (((norm >> 37) & 0x0F) == 0x05
+					&& ((norm >> 9) & 0x07) == 0) {
+				addr = (norm >> 13) & 0x0FFFFF;
+				addr |= ((uint32_t)(norm >> 36) & 1) << 20;
+				addr <<= 4;
+				addr -= s->pos + (uint32_t)i;
+				addr >>= 4;
+
+				norm &= ~((uint64_t)0x8FFFFF << 13);
+				norm |= (uint64_t)(addr & 0x0FFFFF) << 13;
+				norm |= (uint64_t)(addr & 0x100000)
+						<< (36 - 20);
+
+				instr &= (1 << bit_res) - 1;
+				instr |= norm << bit_res;
+
+				for (j = 0; j < 6; j++)
+					buf[i + j + byte_pos]
+						= (uint8_t)(instr >> (8 * j));
+			}
+		}
+	}
+
+	return i;
+}
+#endif
+
+#ifdef XZ_DEC_ARM
+static size_t bcj_arm(struct xz_dec_bcj *s, uint8_t *buf, size_t size)
+{
+	size_t i;
+	uint32_t addr;
+
+	for (i = 0; i + 4 <= size; i += 4) {
+		if (buf[i + 3] == 0xEB) {
+			addr = (uint32_t)buf[i] | ((uint32_t)buf[i + 1] << 8)
+					| ((uint32_t)buf[i + 2] << 16);
+			addr <<= 2;
+			addr -= s->pos + (uint32_t)i + 8;
+			addr >>= 2;
+			buf[i] = (uint8_t)addr;
+			buf[i + 1] = (uint8_t)(addr >> 8);
+			buf[i + 2] = (uint8_t)(addr >> 16);
+		}
+	}
+
+	return i;
+}
+#endif
+
+#ifdef XZ_DEC_ARMTHUMB
+static size_t bcj_armthumb(struct xz_dec_bcj *s, uint8_t *buf, size_t size)
+{
+	size_t i;
+	uint32_t addr;
+
+	for (i = 0; i + 4 <= size; i += 2) {
+		if ((buf[i + 1] & 0xF8) == 0xF0
+				&& (buf[i + 3] & 0xF8) == 0xF8) {
+			addr = (((uint32_t)buf[i + 1] & 0x07) << 19)
+					| ((uint32_t)buf[i] << 11)
+					| (((uint32_t)buf[i + 3] & 0x07) << 8)
+					| (uint32_t)buf[i + 2];
+			addr <<= 1;
+			addr -= s->pos + (uint32_t)i + 4;
+			addr >>= 1;
+			buf[i + 1] = (uint8_t)(0xF0 | ((addr >> 19) & 0x07));
+			buf[i] = (uint8_t)(addr >> 11);
+			buf[i + 3] = (uint8_t)(0xF8 | ((addr >> 8) & 0x07));
+			buf[i + 2] = (uint8_t)addr;
+			i += 2;
+		}
+	}
+
+	return i;
+}
+#endif
+
+#ifdef XZ_DEC_SPARC
+static size_t bcj_sparc(struct xz_dec_bcj *s, uint8_t *buf, size_t size)
+{
+	size_t i;
+	uint32_t instr;
+
+	for (i = 0; i + 4 <= size; i += 4) {
+		instr = get_unaligned_be32(buf + i);
+		if ((instr >> 22) == 0x100 || (instr >> 22) == 0x1FF) {
+			instr <<= 2;
+			instr -= s->pos + (uint32_t)i;
+			instr >>= 2;
+			instr = ((uint32_t)0x40000000 - (instr & 0x400000))
+					| 0x40000000 | (instr & 0x3FFFFF);
+			put_unaligned_be32(instr, buf + i);
+		}
+	}
+
+	return i;
+}
+#endif
+
+/*
+ * Apply the selected BCJ filter. Update *pos and s->pos to match the amount
+ * of data that got filtered.
+ *
+ * NOTE: This is implemented as a switch statement to avoid using function
+ * pointers, which could be problematic in the kernel boot code, which must
+ * avoid pointers to static data (at least on x86).
+ */
+static void bcj_apply(struct xz_dec_bcj *s,
+		      uint8_t *buf, size_t *pos, size_t size)
+{
+	size_t filtered;
+
+	buf += *pos;
+	size -= *pos;
+
+	switch (s->type) {
+#ifdef XZ_DEC_X86
+	case BCJ_X86:
+		filtered = bcj_x86(s, buf, size);
+		break;
+#endif
+#ifdef XZ_DEC_POWERPC
+	case BCJ_POWERPC:
+		filtered = bcj_powerpc(s, buf, size);
+		break;
+#endif
+#ifdef XZ_DEC_IA64
+	case BCJ_IA64:
+		filtered = bcj_ia64(s, buf, size);
+		break;
+#endif
+#ifdef XZ_DEC_ARM
+	case BCJ_ARM:
+		filtered = bcj_arm(s, buf, size);
+		break;
+#endif
+#ifdef XZ_DEC_ARMTHUMB
+	case BCJ_ARMTHUMB:
+		filtered = bcj_armthumb(s, buf, size);
+		break;
+#endif
+#ifdef XZ_DEC_SPARC
+	case BCJ_SPARC:
+		filtered = bcj_sparc(s, buf, size);
+		break;
+#endif
+	default:
+		/* Never reached but silence compiler warnings. */
+		filtered = 0;
+		break;
+	}
+
+	*pos += filtered;
+	s->pos += filtered;
+}
+
+/*
+ * Flush pending filtered data from temp to the output buffer.
+ * Move the remaining mixture of possibly filtered and unfiltered
+ * data to the beginning of temp.
+ */
+static void bcj_flush(struct xz_dec_bcj *s, struct xz_buf *b)
+{
+	size_t copy_size;
+
+	copy_size = min_t(size_t, s->temp.filtered, b->out_size - b->out_pos);
+	memcpy(b->out + b->out_pos, s->temp.buf, copy_size);
+	b->out_pos += copy_size;
+
+	s->temp.filtered -= copy_size;
+	s->temp.size -= copy_size;
+	memmove(s->temp.buf, s->temp.buf + copy_size, s->temp.size);
+}
+
+/*
+ * The BCJ filter functions are primitive in sense that they process the
+ * data in chunks of 1-16 bytes. To hide this issue, this function does
+ * some buffering.
+ */
+XZ_EXTERN enum xz_ret xz_dec_bcj_run(struct xz_dec_bcj *s,
+				     struct xz_dec_lzma2 *lzma2,
+				     struct xz_buf *b)
+{
+	size_t out_start;
+
+	/*
+	 * Flush pending already filtered data to the output buffer. Return
+	 * immediatelly if we couldn't flush everything, or if the next
+	 * filter in the chain had already returned XZ_STREAM_END.
+	 */
+	if (s->temp.filtered > 0) {
+		bcj_flush(s, b);
+		if (s->temp.filtered > 0)
+			return XZ_OK;
+
+		if (s->ret == XZ_STREAM_END)
+			return XZ_STREAM_END;
+	}
+
+	/*
+	 * If we have more output space than what is currently pending in
+	 * temp, copy the unfiltered data from temp to the output buffer
+	 * and try to fill the output buffer by decoding more data from the
+	 * next filter in the chain. Apply the BCJ filter on the new data
+	 * in the output buffer. If everything cannot be filtered, copy it
+	 * to temp and rewind the output buffer position accordingly.
+	 *
+	 * This needs to be always run when temp.size == 0 to handle a special
+	 * case where the output buffer is full and the next filter has no
+	 * more output coming but hasn't returned XZ_STREAM_END yet.
+	 */
+	if (s->temp.size < b->out_size - b->out_pos || s->temp.size == 0) {
+		out_start = b->out_pos;
+		memcpy(b->out + b->out_pos, s->temp.buf, s->temp.size);
+		b->out_pos += s->temp.size;
+
+		s->ret = xz_dec_lzma2_run(lzma2, b);
+		if (s->ret != XZ_STREAM_END
+				&& (s->ret != XZ_OK || s->single_call))
+			return s->ret;
+
+		bcj_apply(s, b->out, &out_start, b->out_pos);
+
+		/*
+		 * As an exception, if the next filter returned XZ_STREAM_END,
+		 * we can do that too, since the last few bytes that remain
+		 * unfiltered are meant to remain unfiltered.
+		 */
+		if (s->ret == XZ_STREAM_END)
+			return XZ_STREAM_END;
+
+		s->temp.size = b->out_pos - out_start;
+		b->out_pos -= s->temp.size;
+		memcpy(s->temp.buf, b->out + b->out_pos, s->temp.size);
+
+		/*
+		 * If there wasn't enough input to the next filter to fill
+		 * the output buffer with unfiltered data, there's no point
+		 * to try decoding more data to temp.
+		 */
+		if (b->out_pos + s->temp.size < b->out_size)
+			return XZ_OK;
+	}
+
+	/*
+	 * We have unfiltered data in temp. If the output buffer isn't full
+	 * yet, try to fill the temp buffer by decoding more data from the
+	 * next filter. Apply the BCJ filter on temp. Then we hopefully can
+	 * fill the actual output buffer by copying filtered data from temp.
+	 * A mix of filtered and unfiltered data may be left in temp; it will
+	 * be taken care on the next call to this function.
+	 */
+	if (b->out_pos < b->out_size) {
+		/* Make b->out{,_pos,_size} temporarily point to s->temp. */
+		s->out = b->out;
+		s->out_pos = b->out_pos;
+		s->out_size = b->out_size;
+		b->out = s->temp.buf;
+		b->out_pos = s->temp.size;
+		b->out_size = sizeof(s->temp.buf);
+
+		s->ret = xz_dec_lzma2_run(lzma2, b);
+
+		s->temp.size = b->out_pos;
+		b->out = s->out;
+		b->out_pos = s->out_pos;
+		b->out_size = s->out_size;
+
+		if (s->ret != XZ_OK && s->ret != XZ_STREAM_END)
+			return s->ret;
+
+		bcj_apply(s, s->temp.buf, &s->temp.filtered, s->temp.size);
+
+		/*
+		 * If the next filter returned XZ_STREAM_END, we mark that
+		 * everything is filtered, since the last unfiltered bytes
+		 * of the stream are meant to be left as is.
+		 */
+		if (s->ret == XZ_STREAM_END)
+			s->temp.filtered = s->temp.size;
+
+		bcj_flush(s, b);
+		if (s->temp.filtered > 0)
+			return XZ_OK;
+	}
+
+	return s->ret;
+}
+
+XZ_EXTERN struct xz_dec_bcj *xz_dec_bcj_create(bool single_call)
+{
+	struct xz_dec_bcj *s = kmalloc(sizeof(*s), GFP_KERNEL);
+	if (s != NULL)
+		s->single_call = single_call;
+
+	return s;
+}
+
+XZ_EXTERN enum xz_ret xz_dec_bcj_reset(struct xz_dec_bcj *s, uint8_t id)
+{
+	switch (id) {
+#ifdef XZ_DEC_X86
+	case BCJ_X86:
+#endif
+#ifdef XZ_DEC_POWERPC
+	case BCJ_POWERPC:
+#endif
+#ifdef XZ_DEC_IA64
+	case BCJ_IA64:
+#endif
+#ifdef XZ_DEC_ARM
+	case BCJ_ARM:
+#endif
+#ifdef XZ_DEC_ARMTHUMB
+	case BCJ_ARMTHUMB:
+#endif
+#ifdef XZ_DEC_SPARC
+	case BCJ_SPARC:
+#endif
+		break;
+
+	default:
+		/* Unsupported Filter ID */
+		return XZ_OPTIONS_ERROR;
+	}
+
+	s->type = id;
+	s->ret = XZ_OK;
+	s->pos = 0;
+	s->x86_prev_mask = 0;
+	s->temp.filtered = 0;
+	s->temp.size = 0;
+
+	return XZ_OK;
+}
+
+#endif
diff --git a/depends/xz-embedded/src/xz_dec_lzma2.c b/depends/xz-embedded/src/xz_dec_lzma2.c
new file mode 100644
index 00000000..a6cdc969
--- /dev/null
+++ b/depends/xz-embedded/src/xz_dec_lzma2.c
@@ -0,0 +1,1171 @@
+/*
+ * LZMA2 decoder
+ *
+ * Authors: Lasse Collin <lasse.collin@tukaani.org>
+ *          Igor Pavlov <http://7-zip.org/>
+ *
+ * This file has been put into the public domain.
+ * You can do whatever you want with this file.
+ */
+
+#include "xz_private.h"
+#include "xz_lzma2.h"
+
+/*
+ * Range decoder initialization eats the first five bytes of each LZMA chunk.
+ */
+#define RC_INIT_BYTES 5
+
+/*
+ * Minimum number of usable input buffer to safely decode one LZMA symbol.
+ * The worst case is that we decode 22 bits using probabilities and 26
+ * direct bits. This may decode at maximum of 20 bytes of input. However,
+ * lzma_main() does an extra normalization before returning, thus we
+ * need to put 21 here.
+ */
+#define LZMA_IN_REQUIRED 21
+
+/*
+ * Dictionary (history buffer)
+ *
+ * These are always true:
+ *    start <= pos <= full <= end
+ *    pos <= limit <= end
+ *
+ * In multi-call mode, also these are true:
+ *    end == size
+ *    size <= size_max
+ *    allocated <= size
+ *
+ * Most of these variables are size_t to support single-call mode,
+ * in which the dictionary variables address the actual output
+ * buffer directly.
+ */
+struct dictionary {
+	/* Beginning of the history buffer */
+	uint8_t *buf;
+
+	/* Old position in buf (before decoding more data) */
+	size_t start;
+
+	/* Position in buf */
+	size_t pos;
+
+	/*
+	 * How full dictionary is. This is used to detect corrupt input that
+	 * would read beyond the beginning of the uncompressed stream.
+	 */
+	size_t full;
+
+	/* Write limit; we don't write to buf[limit] or later bytes. */
+	size_t limit;
+
+	/*
+	 * End of the dictionary buffer. In multi-call mode, this is
+	 * the same as the dictionary size. In single-call mode, this
+	 * indicates the size of the output buffer.
+	 */
+	size_t end;
+
+	/*
+	 * Size of the dictionary as specified in Block Header. This is used
+	 * together with "full" to detect corrupt input that would make us
+	 * read beyond the beginning of the uncompressed stream.
+	 */
+	uint32_t size;
+
+	/*
+	 * Maximum allowed dictionary size in multi-call mode.
+	 * This is ignored in single-call mode.
+	 */
+	uint32_t size_max;
+
+	/*
+	 * Amount of memory currently allocated for the dictionary.
+	 * This is used only with XZ_DYNALLOC. (With XZ_PREALLOC,
+	 * size_max is always the same as the allocated size.)
+	 */
+	uint32_t allocated;
+
+	/* Operation mode */
+	enum xz_mode mode;
+};
+
+/* Range decoder */
+struct rc_dec {
+	uint32_t range;
+	uint32_t code;
+
+	/*
+	 * Number of initializing bytes remaining to be read
+	 * by rc_read_init().
+	 */
+	uint32_t init_bytes_left;
+
+	/*
+	 * Buffer from which we read our input. It can be either
+	 * temp.buf or the caller-provided input buffer.
+	 */
+	const uint8_t *in;
+	size_t in_pos;
+	size_t in_limit;
+};
+
+/* Probabilities for a length decoder. */
+struct lzma_len_dec {
+	/* Probability of match length being at least 10 */
+	uint16_t choice;
+
+	/* Probability of match length being at least 18 */
+	uint16_t choice2;
+
+	/* Probabilities for match lengths 2-9 */
+	uint16_t low[POS_STATES_MAX][LEN_LOW_SYMBOLS];
+
+	/* Probabilities for match lengths 10-17 */
+	uint16_t mid[POS_STATES_MAX][LEN_MID_SYMBOLS];
+
+	/* Probabilities for match lengths 18-273 */
+	uint16_t high[LEN_HIGH_SYMBOLS];
+};
+
+struct lzma_dec {
+	/* Distances of latest four matches */
+	uint32_t rep0;
+	uint32_t rep1;
+	uint32_t rep2;
+	uint32_t rep3;
+
+	/* Types of the most recently seen LZMA symbols */
+	enum lzma_state state;
+
+	/*
+	 * Length of a match. This is updated so that dict_repeat can
+	 * be called again to finish repeating the whole match.
+	 */
+	uint32_t len;
+
+	/*
+	 * LZMA properties or related bit masks (number of literal
+	 * context bits, a mask dervied from the number of literal
+	 * position bits, and a mask dervied from the number
+	 * position bits)
+	 */
+	uint32_t lc;
+	uint32_t literal_pos_mask; /* (1 << lp) - 1 */
+	uint32_t pos_mask;         /* (1 << pb) - 1 */
+
+	/* If 1, it's a match. Otherwise it's a single 8-bit literal. */
+	uint16_t is_match[STATES][POS_STATES_MAX];
+
+	/* If 1, it's a repeated match. The distance is one of rep0 .. rep3. */
+	uint16_t is_rep[STATES];
+
+	/*
+	 * If 0, distance of a repeated match is rep0.
+	 * Otherwise check is_rep1.
+	 */
+	uint16_t is_rep0[STATES];
+
+	/*
+	 * If 0, distance of a repeated match is rep1.
+	 * Otherwise check is_rep2.
+	 */
+	uint16_t is_rep1[STATES];
+
+	/* If 0, distance of a repeated match is rep2. Otherwise it is rep3. */
+	uint16_t is_rep2[STATES];
+
+	/*
+	 * If 1, the repeated match has length of one byte. Otherwise
+	 * the length is decoded from rep_len_decoder.
+	 */
+	uint16_t is_rep0_long[STATES][POS_STATES_MAX];
+
+	/*
+	 * Probability tree for the highest two bits of the match
+	 * distance. There is a separate probability tree for match
+	 * lengths of 2 (i.e. MATCH_LEN_MIN), 3, 4, and [5, 273].
+	 */
+	uint16_t dist_slot[DIST_STATES][DIST_SLOTS];
+
+	/*
+	 * Probility trees for additional bits for match distance
+	 * when the distance is in the range [4, 127].
+	 */
+	uint16_t dist_special[FULL_DISTANCES - DIST_MODEL_END];
+
+	/*
+	 * Probability tree for the lowest four bits of a match
+	 * distance that is equal to or greater than 128.
+	 */
+	uint16_t dist_align[ALIGN_SIZE];
+
+	/* Length of a normal match */
+	struct lzma_len_dec match_len_dec;
+
+	/* Length of a repeated match */
+	struct lzma_len_dec rep_len_dec;
+
+	/* Probabilities of literals */
+	uint16_t literal[LITERAL_CODERS_MAX][LITERAL_CODER_SIZE];
+};
+
+struct lzma2_dec {
+	/* Position in xz_dec_lzma2_run(). */
+	enum lzma2_seq {
+		SEQ_CONTROL,
+		SEQ_UNCOMPRESSED_1,
+		SEQ_UNCOMPRESSED_2,
+		SEQ_COMPRESSED_0,
+		SEQ_COMPRESSED_1,
+		SEQ_PROPERTIES,
+		SEQ_LZMA_PREPARE,
+		SEQ_LZMA_RUN,
+		SEQ_COPY
+	} sequence;
+
+	/* Next position after decoding the compressed size of the chunk. */
+	enum lzma2_seq next_sequence;
+
+	/* Uncompressed size of LZMA chunk (2 MiB at maximum) */
+	uint32_t uncompressed;
+
+	/*
+	 * Compressed size of LZMA chunk or compressed/uncompressed
+	 * size of uncompressed chunk (64 KiB at maximum)
+	 */
+	uint32_t compressed;
+
+	/*
+	 * True if dictionary reset is needed. This is false before
+	 * the first chunk (LZMA or uncompressed).
+	 */
+	bool need_dict_reset;
+
+	/*
+	 * True if new LZMA properties are needed. This is false
+	 * before the first LZMA chunk.
+	 */
+	bool need_props;
+};
+
+struct xz_dec_lzma2 {
+	/*
+	 * The order below is important on x86 to reduce code size and
+	 * it shouldn't hurt on other platforms. Everything up to and
+	 * including lzma.pos_mask are in the first 128 bytes on x86-32,
+	 * which allows using smaller instructions to access those
+	 * variables. On x86-64, fewer variables fit into the first 128
+	 * bytes, but this is still the best order without sacrificing
+	 * the readability by splitting the structures.
+	 */
+	struct rc_dec rc;
+	struct dictionary dict;
+	struct lzma2_dec lzma2;
+	struct lzma_dec lzma;
+
+	/*
+	 * Temporary buffer which holds small number of input bytes between
+	 * decoder calls. See lzma2_lzma() for details.
+	 */
+	struct {
+		uint32_t size;
+		uint8_t buf[3 * LZMA_IN_REQUIRED];
+	} temp;
+};
+
+/**************
+ * Dictionary *
+ **************/
+
+/*
+ * Reset the dictionary state. When in single-call mode, set up the beginning
+ * of the dictionary to point to the actual output buffer.
+ */
+static void dict_reset(struct dictionary *dict, struct xz_buf *b)
+{
+	if (DEC_IS_SINGLE(dict->mode)) {
+		dict->buf = b->out + b->out_pos;
+		dict->end = b->out_size - b->out_pos;
+	}
+
+	dict->start = 0;
+	dict->pos = 0;
+	dict->limit = 0;
+	dict->full = 0;
+}
+
+/* Set dictionary write limit */
+static void dict_limit(struct dictionary *dict, size_t out_max)
+{
+	if (dict->end - dict->pos <= out_max)
+		dict->limit = dict->end;
+	else
+		dict->limit = dict->pos + out_max;
+}
+
+/* Return true if at least one byte can be written into the dictionary. */
+static inline bool dict_has_space(const struct dictionary *dict)
+{
+	return dict->pos < dict->limit;
+}
+
+/*
+ * Get a byte from the dictionary at the given distance. The distance is
+ * assumed to valid, or as a special case, zero when the dictionary is
+ * still empty. This special case is needed for single-call decoding to
+ * avoid writing a '\0' to the end of the destination buffer.
+ */
+static inline uint32_t dict_get(const struct dictionary *dict, uint32_t dist)
+{
+	size_t offset = dict->pos - dist - 1;
+
+	if (dist >= dict->pos)
+		offset += dict->end;
+
+	return dict->full > 0 ? dict->buf[offset] : 0;
+}
+
+/*
+ * Put one byte into the dictionary. It is assumed that there is space for it.
+ */
+static inline void dict_put(struct dictionary *dict, uint8_t byte)
+{
+	dict->buf[dict->pos++] = byte;
+
+	if (dict->full < dict->pos)
+		dict->full = dict->pos;
+}
+
+/*
+ * Repeat given number of bytes from the given distance. If the distance is
+ * invalid, false is returned. On success, true is returned and *len is
+ * updated to indicate how many bytes were left to be repeated.
+ */
+static bool dict_repeat(struct dictionary *dict, uint32_t *len, uint32_t dist)
+{
+	size_t back;
+	uint32_t left;
+
+	if (dist >= dict->full || dist >= dict->size)
+		return false;
+
+	left = min_t(size_t, dict->limit - dict->pos, *len);
+	*len -= left;
+
+	back = dict->pos - dist - 1;
+	if (dist >= dict->pos)
+		back += dict->end;
+
+	do {
+		dict->buf[dict->pos++] = dict->buf[back++];
+		if (back == dict->end)
+			back = 0;
+	} while (--left > 0);
+
+	if (dict->full < dict->pos)
+		dict->full = dict->pos;
+
+	return true;
+}
+
+/* Copy uncompressed data as is from input to dictionary and output buffers. */
+static void dict_uncompressed(struct dictionary *dict, struct xz_buf *b,
+			      uint32_t *left)
+{
+	size_t copy_size;
+
+	while (*left > 0 && b->in_pos < b->in_size
+			&& b->out_pos < b->out_size) {
+		copy_size = min(b->in_size - b->in_pos,
+				b->out_size - b->out_pos);
+		if (copy_size > dict->end - dict->pos)
+			copy_size = dict->end - dict->pos;
+		if (copy_size > *left)
+			copy_size = *left;
+
+		*left -= copy_size;
+
+		memcpy(dict->buf + dict->pos, b->in + b->in_pos, copy_size);
+		dict->pos += copy_size;
+
+		if (dict->full < dict->pos)
+			dict->full = dict->pos;
+
+		if (DEC_IS_MULTI(dict->mode)) {
+			if (dict->pos == dict->end)
+				dict->pos = 0;
+
+			memcpy(b->out + b->out_pos, b->in + b->in_pos,
+					copy_size);
+		}
+
+		dict->start = dict->pos;
+
+		b->out_pos += copy_size;
+		b->in_pos += copy_size;
+	}
+}
+
+/*
+ * Flush pending data from dictionary to b->out. It is assumed that there is
+ * enough space in b->out. This is guaranteed because caller uses dict_limit()
+ * before decoding data into the dictionary.
+ */
+static uint32_t dict_flush(struct dictionary *dict, struct xz_buf *b)
+{
+	size_t copy_size = dict->pos - dict->start;
+
+	if (DEC_IS_MULTI(dict->mode)) {
+		if (dict->pos == dict->end)
+			dict->pos = 0;
+
+		memcpy(b->out + b->out_pos, dict->buf + dict->start,
+				copy_size);
+	}
+
+	dict->start = dict->pos;
+	b->out_pos += copy_size;
+	return copy_size;
+}
+
+/*****************
+ * Range decoder *
+ *****************/
+
+/* Reset the range decoder. */
+static void rc_reset(struct rc_dec *rc)
+{
+	rc->range = (uint32_t)-1;
+	rc->code = 0;
+	rc->init_bytes_left = RC_INIT_BYTES;
+}
+
+/*
+ * Read the first five initial bytes into rc->code if they haven't been
+ * read already. (Yes, the first byte gets completely ignored.)
+ */
+static bool rc_read_init(struct rc_dec *rc, struct xz_buf *b)
+{
+	while (rc->init_bytes_left > 0) {
+		if (b->in_pos == b->in_size)
+			return false;
+
+		rc->code = (rc->code << 8) + b->in[b->in_pos++];
+		--rc->init_bytes_left;
+	}
+
+	return true;
+}
+
+/* Return true if there may not be enough input for the next decoding loop. */
+static inline bool rc_limit_exceeded(const struct rc_dec *rc)
+{
+	return rc->in_pos > rc->in_limit;
+}
+
+/*
+ * Return true if it is possible (from point of view of range decoder) that
+ * we have reached the end of the LZMA chunk.
+ */
+static inline bool rc_is_finished(const struct rc_dec *rc)
+{
+	return rc->code == 0;
+}
+
+/* Read the next input byte if needed. */
+static __always_inline void rc_normalize(struct rc_dec *rc)
+{
+	if (rc->range < RC_TOP_VALUE) {
+		rc->range <<= RC_SHIFT_BITS;
+		rc->code = (rc->code << RC_SHIFT_BITS) + rc->in[rc->in_pos++];
+	}
+}
+
+/*
+ * Decode one bit. In some versions, this function has been splitted in three
+ * functions so that the compiler is supposed to be able to more easily avoid
+ * an extra branch. In this particular version of the LZMA decoder, this
+ * doesn't seem to be a good idea (tested with GCC 3.3.6, 3.4.6, and 4.3.3
+ * on x86). Using a non-splitted version results in nicer looking code too.
+ *
+ * NOTE: This must return an int. Do not make it return a bool or the speed
+ * of the code generated by GCC 3.x decreases 10-15 %. (GCC 4.3 doesn't care,
+ * and it generates 10-20 % faster code than GCC 3.x from this file anyway.)
+ */
+static __always_inline int rc_bit(struct rc_dec *rc, uint16_t *prob)
+{
+	uint32_t bound;
+	int bit;
+
+	rc_normalize(rc);
+	bound = (rc->range >> RC_BIT_MODEL_TOTAL_BITS) * *prob;
+	if (rc->code < bound) {
+		rc->range = bound;
+		*prob += (RC_BIT_MODEL_TOTAL - *prob) >> RC_MOVE_BITS;
+		bit = 0;
+	} else {
+		rc->range -= bound;
+		rc->code -= bound;
+		*prob -= *prob >> RC_MOVE_BITS;
+		bit = 1;
+	}
+
+	return bit;
+}
+
+/* Decode a bittree starting from the most significant bit. */
+static __always_inline uint32_t rc_bittree(struct rc_dec *rc,
+					   uint16_t *probs, uint32_t limit)
+{
+	uint32_t symbol = 1;
+
+	do {
+		if (rc_bit(rc, &probs[symbol]))
+			symbol = (symbol << 1) + 1;
+		else
+			symbol <<= 1;
+	} while (symbol < limit);
+
+	return symbol;
+}
+
+/* Decode a bittree starting from the least significant bit. */
+static __always_inline void rc_bittree_reverse(struct rc_dec *rc,
+					       uint16_t *probs,
+					       uint32_t *dest, uint32_t limit)
+{
+	uint32_t symbol = 1;
+	uint32_t i = 0;
+
+	do {
+		if (rc_bit(rc, &probs[symbol])) {
+			symbol = (symbol << 1) + 1;
+			*dest += 1 << i;
+		} else {
+			symbol <<= 1;
+		}
+	} while (++i < limit);
+}
+
+/* Decode direct bits (fixed fifty-fifty probability) */
+static inline void rc_direct(struct rc_dec *rc, uint32_t *dest, uint32_t limit)
+{
+	uint32_t mask;
+
+	do {
+		rc_normalize(rc);
+		rc->range >>= 1;
+		rc->code -= rc->range;
+		mask = (uint32_t)0 - (rc->code >> 31);
+		rc->code += rc->range & mask;
+		*dest = (*dest << 1) + (mask + 1);
+	} while (--limit > 0);
+}
+
+/********
+ * LZMA *
+ ********/
+
+/* Get pointer to literal coder probability array. */
+static uint16_t *lzma_literal_probs(struct xz_dec_lzma2 *s)
+{
+	uint32_t prev_byte = dict_get(&s->dict, 0);
+	uint32_t low = prev_byte >> (8 - s->lzma.lc);
+	uint32_t high = (s->dict.pos & s->lzma.literal_pos_mask) << s->lzma.lc;
+	return s->lzma.literal[low + high];
+}
+
+/* Decode a literal (one 8-bit byte) */
+static void lzma_literal(struct xz_dec_lzma2 *s)
+{
+	uint16_t *probs;
+	uint32_t symbol;
+	uint32_t match_byte;
+	uint32_t match_bit;
+	uint32_t offset;
+	uint32_t i;
+
+	probs = lzma_literal_probs(s);
+
+	if (lzma_state_is_literal(s->lzma.state)) {
+		symbol = rc_bittree(&s->rc, probs, 0x100);
+	} else {
+		symbol = 1;
+		match_byte = dict_get(&s->dict, s->lzma.rep0) << 1;
+		offset = 0x100;
+
+		do {
+			match_bit = match_byte & offset;
+			match_byte <<= 1;
+			i = offset + match_bit + symbol;
+
+			if (rc_bit(&s->rc, &probs[i])) {
+				symbol = (symbol << 1) + 1;
+				offset &= match_bit;
+			} else {
+				symbol <<= 1;
+				offset &= ~match_bit;
+			}
+		} while (symbol < 0x100);
+	}
+
+	dict_put(&s->dict, (uint8_t)symbol);
+	lzma_state_literal(&s->lzma.state);
+}
+
+/* Decode the length of the match into s->lzma.len. */
+static void lzma_len(struct xz_dec_lzma2 *s, struct lzma_len_dec *l,
+		     uint32_t pos_state)
+{
+	uint16_t *probs;
+	uint32_t limit;
+
+	if (!rc_bit(&s->rc, &l->choice)) {
+		probs = l->low[pos_state];
+		limit = LEN_LOW_SYMBOLS;
+		s->lzma.len = MATCH_LEN_MIN;
+	} else {
+		if (!rc_bit(&s->rc, &l->choice2)) {
+			probs = l->mid[pos_state];
+			limit = LEN_MID_SYMBOLS;
+			s->lzma.len = MATCH_LEN_MIN + LEN_LOW_SYMBOLS;
+		} else {
+			probs = l->high;
+			limit = LEN_HIGH_SYMBOLS;
+			s->lzma.len = MATCH_LEN_MIN + LEN_LOW_SYMBOLS
+					+ LEN_MID_SYMBOLS;
+		}
+	}
+
+	s->lzma.len += rc_bittree(&s->rc, probs, limit) - limit;
+}
+
+/* Decode a match. The distance will be stored in s->lzma.rep0. */
+static void lzma_match(struct xz_dec_lzma2 *s, uint32_t pos_state)
+{
+	uint16_t *probs;
+	uint32_t dist_slot;
+	uint32_t limit;
+
+	lzma_state_match(&s->lzma.state);
+
+	s->lzma.rep3 = s->lzma.rep2;
+	s->lzma.rep2 = s->lzma.rep1;
+	s->lzma.rep1 = s->lzma.rep0;
+
+	lzma_len(s, &s->lzma.match_len_dec, pos_state);
+
+	probs = s->lzma.dist_slot[lzma_get_dist_state(s->lzma.len)];
+	dist_slot = rc_bittree(&s->rc, probs, DIST_SLOTS) - DIST_SLOTS;
+
+	if (dist_slot < DIST_MODEL_START) {
+		s->lzma.rep0 = dist_slot;
+	} else {
+		limit = (dist_slot >> 1) - 1;
+		s->lzma.rep0 = 2 + (dist_slot & 1);
+
+		if (dist_slot < DIST_MODEL_END) {
+			s->lzma.rep0 <<= limit;
+			probs = s->lzma.dist_special + s->lzma.rep0
+					- dist_slot - 1;
+			rc_bittree_reverse(&s->rc, probs,
+					&s->lzma.rep0, limit);
+		} else {
+			rc_direct(&s->rc, &s->lzma.rep0, limit - ALIGN_BITS);
+			s->lzma.rep0 <<= ALIGN_BITS;
+			rc_bittree_reverse(&s->rc, s->lzma.dist_align,
+					&s->lzma.rep0, ALIGN_BITS);
+		}
+	}
+}
+
+/*
+ * Decode a repeated match. The distance is one of the four most recently
+ * seen matches. The distance will be stored in s->lzma.rep0.
+ */
+static void lzma_rep_match(struct xz_dec_lzma2 *s, uint32_t pos_state)
+{
+	uint32_t tmp;
+
+	if (!rc_bit(&s->rc, &s->lzma.is_rep0[s->lzma.state])) {
+		if (!rc_bit(&s->rc, &s->lzma.is_rep0_long[
+				s->lzma.state][pos_state])) {
+			lzma_state_short_rep(&s->lzma.state);
+			s->lzma.len = 1;
+			return;
+		}
+	} else {
+		if (!rc_bit(&s->rc, &s->lzma.is_rep1[s->lzma.state])) {
+			tmp = s->lzma.rep1;
+		} else {
+			if (!rc_bit(&s->rc, &s->lzma.is_rep2[s->lzma.state])) {
+				tmp = s->lzma.rep2;
+			} else {
+				tmp = s->lzma.rep3;
+				s->lzma.rep3 = s->lzma.rep2;
+			}
+
+			s->lzma.rep2 = s->lzma.rep1;
+		}
+
+		s->lzma.rep1 = s->lzma.rep0;
+		s->lzma.rep0 = tmp;
+	}
+
+	lzma_state_long_rep(&s->lzma.state);
+	lzma_len(s, &s->lzma.rep_len_dec, pos_state);
+}
+
+/* LZMA decoder core */
+static bool lzma_main(struct xz_dec_lzma2 *s)
+{
+	uint32_t pos_state;
+
+	/*
+	 * If the dictionary was reached during the previous call, try to
+	 * finish the possibly pending repeat in the dictionary.
+	 */
+	if (dict_has_space(&s->dict) && s->lzma.len > 0)
+		dict_repeat(&s->dict, &s->lzma.len, s->lzma.rep0);
+
+	/*
+	 * Decode more LZMA symbols. One iteration may consume up to
+	 * LZMA_IN_REQUIRED - 1 bytes.
+	 */
+	while (dict_has_space(&s->dict) && !rc_limit_exceeded(&s->rc)) {
+		pos_state = s->dict.pos & s->lzma.pos_mask;
+
+		if (!rc_bit(&s->rc, &s->lzma.is_match[
+				s->lzma.state][pos_state])) {
+			lzma_literal(s);
+		} else {
+			if (rc_bit(&s->rc, &s->lzma.is_rep[s->lzma.state]))
+				lzma_rep_match(s, pos_state);
+			else
+				lzma_match(s, pos_state);
+
+			if (!dict_repeat(&s->dict, &s->lzma.len, s->lzma.rep0))
+				return false;
+		}
+	}
+
+	/*
+	 * Having the range decoder always normalized when we are outside
+	 * this function makes it easier to correctly handle end of the chunk.
+	 */
+	rc_normalize(&s->rc);
+
+	return true;
+}
+
+/*
+ * Reset the LZMA decoder and range decoder state. Dictionary is nore reset
+ * here, because LZMA state may be reset without resetting the dictionary.
+ */
+static void lzma_reset(struct xz_dec_lzma2 *s)
+{
+	uint16_t *probs;
+	size_t i;
+
+	s->lzma.state = STATE_LIT_LIT;
+	s->lzma.rep0 = 0;
+	s->lzma.rep1 = 0;
+	s->lzma.rep2 = 0;
+	s->lzma.rep3 = 0;
+
+	/*
+	 * All probabilities are initialized to the same value. This hack
+	 * makes the code smaller by avoiding a separate loop for each
+	 * probability array.
+	 *
+	 * This could be optimized so that only that part of literal
+	 * probabilities that are actually required. In the common case
+	 * we would write 12 KiB less.
+	 */
+	probs = s->lzma.is_match[0];
+	for (i = 0; i < PROBS_TOTAL; ++i)
+		probs[i] = RC_BIT_MODEL_TOTAL / 2;
+
+	rc_reset(&s->rc);
+}
+
+/*
+ * Decode and validate LZMA properties (lc/lp/pb) and calculate the bit masks
+ * from the decoded lp and pb values. On success, the LZMA decoder state is
+ * reset and true is returned.
+ */
+static bool lzma_props(struct xz_dec_lzma2 *s, uint8_t props)
+{
+	if (props > (4 * 5 + 4) * 9 + 8)
+		return false;
+
+	s->lzma.pos_mask = 0;
+	while (props >= 9 * 5) {
+		props -= 9 * 5;
+		++s->lzma.pos_mask;
+	}
+
+	s->lzma.pos_mask = (1 << s->lzma.pos_mask) - 1;
+
+	s->lzma.literal_pos_mask = 0;
+	while (props >= 9) {
+		props -= 9;
+		++s->lzma.literal_pos_mask;
+	}
+
+	s->lzma.lc = props;
+
+	if (s->lzma.lc + s->lzma.literal_pos_mask > 4)
+		return false;
+
+	s->lzma.literal_pos_mask = (1 << s->lzma.literal_pos_mask) - 1;
+
+	lzma_reset(s);
+
+	return true;
+}
+
+/*********
+ * LZMA2 *
+ *********/
+
+/*
+ * The LZMA decoder assumes that if the input limit (s->rc.in_limit) hasn't
+ * been exceeded, it is safe to read up to LZMA_IN_REQUIRED bytes. This
+ * wrapper function takes care of making the LZMA decoder's assumption safe.
+ *
+ * As long as there is plenty of input left to be decoded in the current LZMA
+ * chunk, we decode directly from the caller-supplied input buffer until
+ * there's LZMA_IN_REQUIRED bytes left. Those remaining bytes are copied into
+ * s->temp.buf, which (hopefully) gets filled on the next call to this
+ * function. We decode a few bytes from the temporary buffer so that we can
+ * continue decoding from the caller-supplied input buffer again.
+ */
+static bool lzma2_lzma(struct xz_dec_lzma2 *s, struct xz_buf *b)
+{
+	size_t in_avail;
+	uint32_t tmp;
+
+	in_avail = b->in_size - b->in_pos;
+	if (s->temp.size > 0 || s->lzma2.compressed == 0) {
+		tmp = 2 * LZMA_IN_REQUIRED - s->temp.size;
+		if (tmp > s->lzma2.compressed - s->temp.size)
+			tmp = s->lzma2.compressed - s->temp.size;
+		if (tmp > in_avail)
+			tmp = in_avail;
+
+		memcpy(s->temp.buf + s->temp.size, b->in + b->in_pos, tmp);
+
+		if (s->temp.size + tmp == s->lzma2.compressed) {
+			memzero(s->temp.buf + s->temp.size + tmp,
+					sizeof(s->temp.buf)
+						- s->temp.size - tmp);
+			s->rc.in_limit = s->temp.size + tmp;
+		} else if (s->temp.size + tmp < LZMA_IN_REQUIRED) {
+			s->temp.size += tmp;
+			b->in_pos += tmp;
+			return true;
+		} else {
+			s->rc.in_limit = s->temp.size + tmp - LZMA_IN_REQUIRED;
+		}
+
+		s->rc.in = s->temp.buf;
+		s->rc.in_pos = 0;
+
+		if (!lzma_main(s) || s->rc.in_pos > s->temp.size + tmp)
+			return false;
+
+		s->lzma2.compressed -= s->rc.in_pos;
+
+		if (s->rc.in_pos < s->temp.size) {
+			s->temp.size -= s->rc.in_pos;
+			memmove(s->temp.buf, s->temp.buf + s->rc.in_pos,
+					s->temp.size);
+			return true;
+		}
+
+		b->in_pos += s->rc.in_pos - s->temp.size;
+		s->temp.size = 0;
+	}
+
+	in_avail = b->in_size - b->in_pos;
+	if (in_avail >= LZMA_IN_REQUIRED) {
+		s->rc.in = b->in;
+		s->rc.in_pos = b->in_pos;
+
+		if (in_avail >= s->lzma2.compressed + LZMA_IN_REQUIRED)
+			s->rc.in_limit = b->in_pos + s->lzma2.compressed;
+		else
+			s->rc.in_limit = b->in_size - LZMA_IN_REQUIRED;
+
+		if (!lzma_main(s))
+			return false;
+
+		in_avail = s->rc.in_pos - b->in_pos;
+		if (in_avail > s->lzma2.compressed)
+			return false;
+
+		s->lzma2.compressed -= in_avail;
+		b->in_pos = s->rc.in_pos;
+	}
+
+	in_avail = b->in_size - b->in_pos;
+	if (in_avail < LZMA_IN_REQUIRED) {
+		if (in_avail > s->lzma2.compressed)
+			in_avail = s->lzma2.compressed;
+
+		memcpy(s->temp.buf, b->in + b->in_pos, in_avail);
+		s->temp.size = in_avail;
+		b->in_pos += in_avail;
+	}
+
+	return true;
+}
+
+/*
+ * Take care of the LZMA2 control layer, and forward the job of actual LZMA
+ * decoding or copying of uncompressed chunks to other functions.
+ */
+XZ_EXTERN enum xz_ret xz_dec_lzma2_run(struct xz_dec_lzma2 *s,
+				       struct xz_buf *b)
+{
+	uint32_t tmp;
+
+	while (b->in_pos < b->in_size || s->lzma2.sequence == SEQ_LZMA_RUN) {
+		switch (s->lzma2.sequence) {
+		case SEQ_CONTROL:
+			/*
+			 * LZMA2 control byte
+			 *
+			 * Exact values:
+			 *   0x00   End marker
+			 *   0x01   Dictionary reset followed by
+			 *          an uncompressed chunk
+			 *   0x02   Uncompressed chunk (no dictionary reset)
+			 *
+			 * Highest three bits (s->control & 0xE0):
+			 *   0xE0   Dictionary reset, new properties and state
+			 *          reset, followed by LZMA compressed chunk
+			 *   0xC0   New properties and state reset, followed
+			 *          by LZMA compressed chunk (no dictionary
+			 *          reset)
+			 *   0xA0   State reset using old properties,
+			 *          followed by LZMA compressed chunk (no
+			 *          dictionary reset)
+			 *   0x80   LZMA chunk (no dictionary or state reset)
+			 *
+			 * For LZMA compressed chunks, the lowest five bits
+			 * (s->control & 1F) are the highest bits of the
+			 * uncompressed size (bits 16-20).
+			 *
+			 * A new LZMA2 stream must begin with a dictionary
+			 * reset. The first LZMA chunk must set new
+			 * properties and reset the LZMA state.
+			 *
+			 * Values that don't match anything described above
+			 * are invalid and we return XZ_DATA_ERROR.
+			 */
+			tmp = b->in[b->in_pos++];
+
+			if (tmp == 0x00)
+				return XZ_STREAM_END;
+
+			if (tmp >= 0xE0 || tmp == 0x01) {
+				s->lzma2.need_props = true;
+				s->lzma2.need_dict_reset = false;
+				dict_reset(&s->dict, b);
+			} else if (s->lzma2.need_dict_reset) {
+				return XZ_DATA_ERROR;
+			}
+
+			if (tmp >= 0x80) {
+				s->lzma2.uncompressed = (tmp & 0x1F) << 16;
+				s->lzma2.sequence = SEQ_UNCOMPRESSED_1;
+
+				if (tmp >= 0xC0) {
+					/*
+					 * When there are new properties,
+					 * state reset is done at
+					 * SEQ_PROPERTIES.
+					 */
+					s->lzma2.need_props = false;
+					s->lzma2.next_sequence
+							= SEQ_PROPERTIES;
+
+				} else if (s->lzma2.need_props) {
+					return XZ_DATA_ERROR;
+
+				} else {
+					s->lzma2.next_sequence
+							= SEQ_LZMA_PREPARE;
+					if (tmp >= 0xA0)
+						lzma_reset(s);
+				}
+			} else {
+				if (tmp > 0x02)
+					return XZ_DATA_ERROR;
+
+				s->lzma2.sequence = SEQ_COMPRESSED_0;
+				s->lzma2.next_sequence = SEQ_COPY;
+			}
+
+			break;
+
+		case SEQ_UNCOMPRESSED_1:
+			s->lzma2.uncompressed
+					+= (uint32_t)b->in[b->in_pos++] << 8;
+			s->lzma2.sequence = SEQ_UNCOMPRESSED_2;
+			break;
+
+		case SEQ_UNCOMPRESSED_2:
+			s->lzma2.uncompressed
+					+= (uint32_t)b->in[b->in_pos++] + 1;
+			s->lzma2.sequence = SEQ_COMPRESSED_0;
+			break;
+
+		case SEQ_COMPRESSED_0:
+			s->lzma2.compressed
+					= (uint32_t)b->in[b->in_pos++] << 8;
+			s->lzma2.sequence = SEQ_COMPRESSED_1;
+			break;
+
+		case SEQ_COMPRESSED_1:
+			s->lzma2.compressed
+					+= (uint32_t)b->in[b->in_pos++] + 1;
+			s->lzma2.sequence = s->lzma2.next_sequence;
+			break;
+
+		case SEQ_PROPERTIES:
+			if (!lzma_props(s, b->in[b->in_pos++]))
+				return XZ_DATA_ERROR;
+
+			s->lzma2.sequence = SEQ_LZMA_PREPARE;
+
+		case SEQ_LZMA_PREPARE:
+			if (s->lzma2.compressed < RC_INIT_BYTES)
+				return XZ_DATA_ERROR;
+
+			if (!rc_read_init(&s->rc, b))
+				return XZ_OK;
+
+			s->lzma2.compressed -= RC_INIT_BYTES;
+			s->lzma2.sequence = SEQ_LZMA_RUN;
+
+		case SEQ_LZMA_RUN:
+			/*
+			 * Set dictionary limit to indicate how much we want
+			 * to be encoded at maximum. Decode new data into the
+			 * dictionary. Flush the new data from dictionary to
+			 * b->out. Check if we finished decoding this chunk.
+			 * In case the dictionary got full but we didn't fill
+			 * the output buffer yet, we may run this loop
+			 * multiple times without changing s->lzma2.sequence.
+			 */
+			dict_limit(&s->dict, min_t(size_t,
+					b->out_size - b->out_pos,
+					s->lzma2.uncompressed));
+			if (!lzma2_lzma(s, b))
+				return XZ_DATA_ERROR;
+
+			s->lzma2.uncompressed -= dict_flush(&s->dict, b);
+
+			if (s->lzma2.uncompressed == 0) {
+				if (s->lzma2.compressed > 0 || s->lzma.len > 0
+						|| !rc_is_finished(&s->rc))
+					return XZ_DATA_ERROR;
+
+				rc_reset(&s->rc);
+				s->lzma2.sequence = SEQ_CONTROL;
+
+			} else if (b->out_pos == b->out_size
+					|| (b->in_pos == b->in_size
+						&& s->temp.size
+						< s->lzma2.compressed)) {
+				return XZ_OK;
+			}
+
+			break;
+
+		case SEQ_COPY:
+			dict_uncompressed(&s->dict, b, &s->lzma2.compressed);
+			if (s->lzma2.compressed > 0)
+				return XZ_OK;
+
+			s->lzma2.sequence = SEQ_CONTROL;
+			break;
+		}
+	}
+
+	return XZ_OK;
+}
+
+XZ_EXTERN struct xz_dec_lzma2 *xz_dec_lzma2_create(enum xz_mode mode,
+						   uint32_t dict_max)
+{
+	struct xz_dec_lzma2 *s = kmalloc(sizeof(*s), GFP_KERNEL);
+	if (s == NULL)
+		return NULL;
+
+	s->dict.mode = mode;
+	s->dict.size_max = dict_max;
+
+	if (DEC_IS_PREALLOC(mode)) {
+		s->dict.buf = vmalloc(dict_max);
+		if (s->dict.buf == NULL) {
+			kfree(s);
+			return NULL;
+		}
+	} else if (DEC_IS_DYNALLOC(mode)) {
+		s->dict.buf = NULL;
+		s->dict.allocated = 0;
+	}
+
+	return s;
+}
+
+XZ_EXTERN enum xz_ret xz_dec_lzma2_reset(struct xz_dec_lzma2 *s, uint8_t props)
+{
+	/* This limits dictionary size to 3 GiB to keep parsing simpler. */
+	if (props > 39)
+		return XZ_OPTIONS_ERROR;
+
+	s->dict.size = 2 + (props & 1);
+	s->dict.size <<= (props >> 1) + 11;
+
+	if (DEC_IS_MULTI(s->dict.mode)) {
+		if (s->dict.size > s->dict.size_max)
+			return XZ_MEMLIMIT_ERROR;
+
+		s->dict.end = s->dict.size;
+
+		if (DEC_IS_DYNALLOC(s->dict.mode)) {
+			if (s->dict.allocated < s->dict.size) {
+				vfree(s->dict.buf);
+				s->dict.buf = vmalloc(s->dict.size);
+				if (s->dict.buf == NULL) {
+					s->dict.allocated = 0;
+					return XZ_MEM_ERROR;
+				}
+			}
+		}
+	}
+
+	s->lzma.len = 0;
+
+	s->lzma2.sequence = SEQ_CONTROL;
+	s->lzma2.need_dict_reset = true;
+
+	s->temp.size = 0;
+
+	return XZ_OK;
+}
+
+XZ_EXTERN void xz_dec_lzma2_end(struct xz_dec_lzma2 *s)
+{
+	if (DEC_IS_MULTI(s->dict.mode))
+		vfree(s->dict.buf);
+
+	kfree(s);
+}
diff --git a/depends/xz-embedded/src/xz_dec_stream.c b/depends/xz-embedded/src/xz_dec_stream.c
new file mode 100644
index 00000000..d6525506
--- /dev/null
+++ b/depends/xz-embedded/src/xz_dec_stream.c
@@ -0,0 +1,847 @@
+/*
+ * .xz Stream decoder
+ *
+ * Author: Lasse Collin <lasse.collin@tukaani.org>
+ *
+ * This file has been put into the public domain.
+ * You can do whatever you want with this file.
+ */
+
+#include "xz_private.h"
+#include "xz_stream.h"
+
+#ifdef XZ_USE_CRC64
+#	define IS_CRC64(check_type) ((check_type) == XZ_CHECK_CRC64)
+#else
+#	define IS_CRC64(check_type) false
+#endif
+
+/* Hash used to validate the Index field */
+struct xz_dec_hash {
+	vli_type unpadded;
+	vli_type uncompressed;
+	uint32_t crc32;
+};
+
+struct xz_dec {
+	/* Position in dec_main() */
+	enum {
+		SEQ_STREAM_HEADER,
+		SEQ_BLOCK_START,
+		SEQ_BLOCK_HEADER,
+		SEQ_BLOCK_UNCOMPRESS,
+		SEQ_BLOCK_PADDING,
+		SEQ_BLOCK_CHECK,
+		SEQ_INDEX,
+		SEQ_INDEX_PADDING,
+		SEQ_INDEX_CRC32,
+		SEQ_STREAM_FOOTER
+	} sequence;
+
+	/* Position in variable-length integers and Check fields */
+	uint32_t pos;
+
+	/* Variable-length integer decoded by dec_vli() */
+	vli_type vli;
+
+	/* Saved in_pos and out_pos */
+	size_t in_start;
+	size_t out_start;
+
+#ifdef XZ_USE_CRC64
+	/* CRC32 or CRC64 value in Block or CRC32 value in Index */
+	uint64_t crc;
+#else
+	/* CRC32 value in Block or Index */
+	uint32_t crc;
+#endif
+
+	/* Type of the integrity check calculated from uncompressed data */
+	enum xz_check check_type;
+
+	/* Operation mode */
+	enum xz_mode mode;
+
+	/*
+	 * True if the next call to xz_dec_run() is allowed to return
+	 * XZ_BUF_ERROR.
+	 */
+	bool allow_buf_error;
+
+	/* Information stored in Block Header */
+	struct {
+		/*
+		 * Value stored in the Compressed Size field, or
+		 * VLI_UNKNOWN if Compressed Size is not present.
+		 */
+		vli_type compressed;
+
+		/*
+		 * Value stored in the Uncompressed Size field, or
+		 * VLI_UNKNOWN if Uncompressed Size is not present.
+		 */
+		vli_type uncompressed;
+
+		/* Size of the Block Header field */
+		uint32_t size;
+	} block_header;
+
+	/* Information collected when decoding Blocks */
+	struct {
+		/* Observed compressed size of the current Block */
+		vli_type compressed;
+
+		/* Observed uncompressed size of the current Block */
+		vli_type uncompressed;
+
+		/* Number of Blocks decoded so far */
+		vli_type count;
+
+		/*
+		 * Hash calculated from the Block sizes. This is used to
+		 * validate the Index field.
+		 */
+		struct xz_dec_hash hash;
+	} block;
+
+	/* Variables needed when verifying the Index field */
+	struct {
+		/* Position in dec_index() */
+		enum {
+			SEQ_INDEX_COUNT,
+			SEQ_INDEX_UNPADDED,
+			SEQ_INDEX_UNCOMPRESSED
+		} sequence;
+
+		/* Size of the Index in bytes */
+		vli_type size;
+
+		/* Number of Records (matches block.count in valid files) */
+		vli_type count;
+
+		/*
+		 * Hash calculated from the Records (matches block.hash in
+		 * valid files).
+		 */
+		struct xz_dec_hash hash;
+	} index;
+
+	/*
+	 * Temporary buffer needed to hold Stream Header, Block Header,
+	 * and Stream Footer. The Block Header is the biggest (1 KiB)
+	 * so we reserve space according to that. buf[] has to be aligned
+	 * to a multiple of four bytes; the size_t variables before it
+	 * should guarantee this.
+	 */
+	struct {
+		size_t pos;
+		size_t size;
+		uint8_t buf[1024];
+	} temp;
+
+	struct xz_dec_lzma2 *lzma2;
+
+#ifdef XZ_DEC_BCJ
+	struct xz_dec_bcj *bcj;
+	bool bcj_active;
+#endif
+};
+
+#ifdef XZ_DEC_ANY_CHECK
+/* Sizes of the Check field with different Check IDs */
+static const uint8_t check_sizes[16] = {
+	0,
+	4, 4, 4,
+	8, 8, 8,
+	16, 16, 16,
+	32, 32, 32,
+	64, 64, 64
+};
+#endif
+
+/*
+ * Fill s->temp by copying data starting from b->in[b->in_pos]. Caller
+ * must have set s->temp.pos to indicate how much data we are supposed
+ * to copy into s->temp.buf. Return true once s->temp.pos has reached
+ * s->temp.size.
+ */
+static bool fill_temp(struct xz_dec *s, struct xz_buf *b)
+{
+	size_t copy_size = min_t(size_t,
+			b->in_size - b->in_pos, s->temp.size - s->temp.pos);
+
+	memcpy(s->temp.buf + s->temp.pos, b->in + b->in_pos, copy_size);
+	b->in_pos += copy_size;
+	s->temp.pos += copy_size;
+
+	if (s->temp.pos == s->temp.size) {
+		s->temp.pos = 0;
+		return true;
+	}
+
+	return false;
+}
+
+/* Decode a variable-length integer (little-endian base-128 encoding) */
+static enum xz_ret dec_vli(struct xz_dec *s, const uint8_t *in,
+			   size_t *in_pos, size_t in_size)
+{
+	uint8_t byte;
+
+	if (s->pos == 0)
+		s->vli = 0;
+
+	while (*in_pos < in_size) {
+		byte = in[*in_pos];
+		++*in_pos;
+
+		s->vli |= (vli_type)(byte & 0x7F) << s->pos;
+
+		if ((byte & 0x80) == 0) {
+			/* Don't allow non-minimal encodings. */
+			if (byte == 0 && s->pos != 0)
+				return XZ_DATA_ERROR;
+
+			s->pos = 0;
+			return XZ_STREAM_END;
+		}
+
+		s->pos += 7;
+		if (s->pos == 7 * VLI_BYTES_MAX)
+			return XZ_DATA_ERROR;
+	}
+
+	return XZ_OK;
+}
+
+/*
+ * Decode the Compressed Data field from a Block. Update and validate
+ * the observed compressed and uncompressed sizes of the Block so that
+ * they don't exceed the values possibly stored in the Block Header
+ * (validation assumes that no integer overflow occurs, since vli_type
+ * is normally uint64_t). Update the CRC32 or CRC64 value if presence of
+ * the CRC32 or CRC64 field was indicated in Stream Header.
+ *
+ * Once the decoding is finished, validate that the observed sizes match
+ * the sizes possibly stored in the Block Header. Update the hash and
+ * Block count, which are later used to validate the Index field.
+ */
+static enum xz_ret dec_block(struct xz_dec *s, struct xz_buf *b)
+{
+	enum xz_ret ret;
+
+	s->in_start = b->in_pos;
+	s->out_start = b->out_pos;
+
+#ifdef XZ_DEC_BCJ
+	if (s->bcj_active)
+		ret = xz_dec_bcj_run(s->bcj, s->lzma2, b);
+	else
+#endif
+		ret = xz_dec_lzma2_run(s->lzma2, b);
+
+	s->block.compressed += b->in_pos - s->in_start;
+	s->block.uncompressed += b->out_pos - s->out_start;
+
+	/*
+	 * There is no need to separately check for VLI_UNKNOWN, since
+	 * the observed sizes are always smaller than VLI_UNKNOWN.
+	 */
+	if (s->block.compressed > s->block_header.compressed
+			|| s->block.uncompressed
+				> s->block_header.uncompressed)
+		return XZ_DATA_ERROR;
+
+	if (s->check_type == XZ_CHECK_CRC32)
+		s->crc = xz_crc32(b->out + s->out_start,
+				b->out_pos - s->out_start, s->crc);
+#ifdef XZ_USE_CRC64
+	else if (s->check_type == XZ_CHECK_CRC64)
+		s->crc = xz_crc64(b->out + s->out_start,
+				b->out_pos - s->out_start, s->crc);
+#endif
+
+	if (ret == XZ_STREAM_END) {
+		if (s->block_header.compressed != VLI_UNKNOWN
+				&& s->block_header.compressed
+					!= s->block.compressed)
+			return XZ_DATA_ERROR;
+
+		if (s->block_header.uncompressed != VLI_UNKNOWN
+				&& s->block_header.uncompressed
+					!= s->block.uncompressed)
+			return XZ_DATA_ERROR;
+
+		s->block.hash.unpadded += s->block_header.size
+				+ s->block.compressed;
+
+#ifdef XZ_DEC_ANY_CHECK
+		s->block.hash.unpadded += check_sizes[s->check_type];
+#else
+		if (s->check_type == XZ_CHECK_CRC32)
+			s->block.hash.unpadded += 4;
+		else if (IS_CRC64(s->check_type))
+			s->block.hash.unpadded += 8;
+#endif
+
+		s->block.hash.uncompressed += s->block.uncompressed;
+		s->block.hash.crc32 = xz_crc32(
+				(const uint8_t *)&s->block.hash,
+				sizeof(s->block.hash), s->block.hash.crc32);
+
+		++s->block.count;
+	}
+
+	return ret;
+}
+
+/* Update the Index size and the CRC32 value. */
+static void index_update(struct xz_dec *s, const struct xz_buf *b)
+{
+	size_t in_used = b->in_pos - s->in_start;
+	s->index.size += in_used;
+	s->crc = xz_crc32(b->in + s->in_start, in_used, s->crc);
+}
+
+/*
+ * Decode the Number of Records, Unpadded Size, and Uncompressed Size
+ * fields from the Index field. That is, Index Padding and CRC32 are not
+ * decoded by this function.
+ *
+ * This can return XZ_OK (more input needed), XZ_STREAM_END (everything
+ * successfully decoded), or XZ_DATA_ERROR (input is corrupt).
+ */
+static enum xz_ret dec_index(struct xz_dec *s, struct xz_buf *b)
+{
+	enum xz_ret ret;
+
+	do {
+		ret = dec_vli(s, b->in, &b->in_pos, b->in_size);
+		if (ret != XZ_STREAM_END) {
+			index_update(s, b);
+			return ret;
+		}
+
+		switch (s->index.sequence) {
+		case SEQ_INDEX_COUNT:
+			s->index.count = s->vli;
+
+			/*
+			 * Validate that the Number of Records field
+			 * indicates the same number of Records as
+			 * there were Blocks in the Stream.
+			 */
+			if (s->index.count != s->block.count)
+				return XZ_DATA_ERROR;
+
+			s->index.sequence = SEQ_INDEX_UNPADDED;
+			break;
+
+		case SEQ_INDEX_UNPADDED:
+			s->index.hash.unpadded += s->vli;
+			s->index.sequence = SEQ_INDEX_UNCOMPRESSED;
+			break;
+
+		case SEQ_INDEX_UNCOMPRESSED:
+			s->index.hash.uncompressed += s->vli;
+			s->index.hash.crc32 = xz_crc32(
+					(const uint8_t *)&s->index.hash,
+					sizeof(s->index.hash),
+					s->index.hash.crc32);
+			--s->index.count;
+			s->index.sequence = SEQ_INDEX_UNPADDED;
+			break;
+		}
+	} while (s->index.count > 0);
+
+	return XZ_STREAM_END;
+}
+
+/*
+ * Validate that the next four or eight input bytes match the value
+ * of s->crc. s->pos must be zero when starting to validate the first byte.
+ * The "bits" argument allows using the same code for both CRC32 and CRC64.
+ */
+static enum xz_ret crc_validate(struct xz_dec *s, struct xz_buf *b,
+				uint32_t bits)
+{
+	do {
+		if (b->in_pos == b->in_size)
+			return XZ_OK;
+
+		if (((s->crc >> s->pos) & 0xFF) != b->in[b->in_pos++])
+			return XZ_DATA_ERROR;
+
+		s->pos += 8;
+
+	} while (s->pos < bits);
+
+	s->crc = 0;
+	s->pos = 0;
+
+	return XZ_STREAM_END;
+}
+
+#ifdef XZ_DEC_ANY_CHECK
+/*
+ * Skip over the Check field when the Check ID is not supported.
+ * Returns true once the whole Check field has been skipped over.
+ */
+static bool check_skip(struct xz_dec *s, struct xz_buf *b)
+{
+	while (s->pos < check_sizes[s->check_type]) {
+		if (b->in_pos == b->in_size)
+			return false;
+
+		++b->in_pos;
+		++s->pos;
+	}
+
+	s->pos = 0;
+
+	return true;
+}
+#endif
+
+/* Decode the Stream Header field (the first 12 bytes of the .xz Stream). */
+static enum xz_ret dec_stream_header(struct xz_dec *s)
+{
+	if (!memeq(s->temp.buf, HEADER_MAGIC, HEADER_MAGIC_SIZE))
+		return XZ_FORMAT_ERROR;
+
+	if (xz_crc32(s->temp.buf + HEADER_MAGIC_SIZE, 2, 0)
+			!= get_le32(s->temp.buf + HEADER_MAGIC_SIZE + 2))
+		return XZ_DATA_ERROR;
+
+	if (s->temp.buf[HEADER_MAGIC_SIZE] != 0)
+		return XZ_OPTIONS_ERROR;
+
+	/*
+	 * Of integrity checks, we support none (Check ID = 0),
+	 * CRC32 (Check ID = 1), and optionally CRC64 (Check ID = 4).
+	 * However, if XZ_DEC_ANY_CHECK is defined, we will accept other
+	 * check types too, but then the check won't be verified and
+	 * a warning (XZ_UNSUPPORTED_CHECK) will be given.
+	 */
+	s->check_type = s->temp.buf[HEADER_MAGIC_SIZE + 1];
+
+#ifdef XZ_DEC_ANY_CHECK
+	if (s->check_type > XZ_CHECK_MAX)
+		return XZ_OPTIONS_ERROR;
+
+	if (s->check_type > XZ_CHECK_CRC32 && !IS_CRC64(s->check_type))
+		return XZ_UNSUPPORTED_CHECK;
+#else
+	if (s->check_type > XZ_CHECK_CRC32 && !IS_CRC64(s->check_type))
+		return XZ_OPTIONS_ERROR;
+#endif
+
+	return XZ_OK;
+}
+
+/* Decode the Stream Footer field (the last 12 bytes of the .xz Stream) */
+static enum xz_ret dec_stream_footer(struct xz_dec *s)
+{
+	if (!memeq(s->temp.buf + 10, FOOTER_MAGIC, FOOTER_MAGIC_SIZE))
+		return XZ_DATA_ERROR;
+
+	if (xz_crc32(s->temp.buf + 4, 6, 0) != get_le32(s->temp.buf))
+		return XZ_DATA_ERROR;
+
+	/*
+	 * Validate Backward Size. Note that we never added the size of the
+	 * Index CRC32 field to s->index.size, thus we use s->index.size / 4
+	 * instead of s->index.size / 4 - 1.
+	 */
+	if ((s->index.size >> 2) != get_le32(s->temp.buf + 4))
+		return XZ_DATA_ERROR;
+
+	if (s->temp.buf[8] != 0 || s->temp.buf[9] != s->check_type)
+		return XZ_DATA_ERROR;
+
+	/*
+	 * Use XZ_STREAM_END instead of XZ_OK to be more convenient
+	 * for the caller.
+	 */
+	return XZ_STREAM_END;
+}
+
+/* Decode the Block Header and initialize the filter chain. */
+static enum xz_ret dec_block_header(struct xz_dec *s)
+{
+	enum xz_ret ret;
+
+	/*
+	 * Validate the CRC32. We know that the temp buffer is at least
+	 * eight bytes so this is safe.
+	 */
+	s->temp.size -= 4;
+	if (xz_crc32(s->temp.buf, s->temp.size, 0)
+			!= get_le32(s->temp.buf + s->temp.size))
+		return XZ_DATA_ERROR;
+
+	s->temp.pos = 2;
+
+	/*
+	 * Catch unsupported Block Flags. We support only one or two filters
+	 * in the chain, so we catch that with the same test.
+	 */
+#ifdef XZ_DEC_BCJ
+	if (s->temp.buf[1] & 0x3E)
+#else
+	if (s->temp.buf[1] & 0x3F)
+#endif
+		return XZ_OPTIONS_ERROR;
+
+	/* Compressed Size */
+	if (s->temp.buf[1] & 0x40) {
+		if (dec_vli(s, s->temp.buf, &s->temp.pos, s->temp.size)
+					!= XZ_STREAM_END)
+			return XZ_DATA_ERROR;
+
+		s->block_header.compressed = s->vli;
+	} else {
+		s->block_header.compressed = VLI_UNKNOWN;
+	}
+
+	/* Uncompressed Size */
+	if (s->temp.buf[1] & 0x80) {
+		if (dec_vli(s, s->temp.buf, &s->temp.pos, s->temp.size)
+				!= XZ_STREAM_END)
+			return XZ_DATA_ERROR;
+
+		s->block_header.uncompressed = s->vli;
+	} else {
+		s->block_header.uncompressed = VLI_UNKNOWN;
+	}
+
+#ifdef XZ_DEC_BCJ
+	/* If there are two filters, the first one must be a BCJ filter. */
+	s->bcj_active = s->temp.buf[1] & 0x01;
+	if (s->bcj_active) {
+		if (s->temp.size - s->temp.pos < 2)
+			return XZ_OPTIONS_ERROR;
+
+		ret = xz_dec_bcj_reset(s->bcj, s->temp.buf[s->temp.pos++]);
+		if (ret != XZ_OK)
+			return ret;
+
+		/*
+		 * We don't support custom start offset,
+		 * so Size of Properties must be zero.
+		 */
+		if (s->temp.buf[s->temp.pos++] != 0x00)
+			return XZ_OPTIONS_ERROR;
+	}
+#endif
+
+	/* Valid Filter Flags always take at least two bytes. */
+	if (s->temp.size - s->temp.pos < 2)
+		return XZ_DATA_ERROR;
+
+	/* Filter ID = LZMA2 */
+	if (s->temp.buf[s->temp.pos++] != 0x21)
+		return XZ_OPTIONS_ERROR;
+
+	/* Size of Properties = 1-byte Filter Properties */
+	if (s->temp.buf[s->temp.pos++] != 0x01)
+		return XZ_OPTIONS_ERROR;
+
+	/* Filter Properties contains LZMA2 dictionary size. */
+	if (s->temp.size - s->temp.pos < 1)
+		return XZ_DATA_ERROR;
+
+	ret = xz_dec_lzma2_reset(s->lzma2, s->temp.buf[s->temp.pos++]);
+	if (ret != XZ_OK)
+		return ret;
+
+	/* The rest must be Header Padding. */
+	while (s->temp.pos < s->temp.size)
+		if (s->temp.buf[s->temp.pos++] != 0x00)
+			return XZ_OPTIONS_ERROR;
+
+	s->temp.pos = 0;
+	s->block.compressed = 0;
+	s->block.uncompressed = 0;
+
+	return XZ_OK;
+}
+
+static enum xz_ret dec_main(struct xz_dec *s, struct xz_buf *b)
+{
+	enum xz_ret ret;
+
+	/*
+	 * Store the start position for the case when we are in the middle
+	 * of the Index field.
+	 */
+	s->in_start = b->in_pos;
+
+	while (true) {
+		switch (s->sequence) {
+		case SEQ_STREAM_HEADER:
+			/*
+			 * Stream Header is copied to s->temp, and then
+			 * decoded from there. This way if the caller
+			 * gives us only little input at a time, we can
+			 * still keep the Stream Header decoding code
+			 * simple. Similar approach is used in many places
+			 * in this file.
+			 */
+			if (!fill_temp(s, b))
+				return XZ_OK;
+
+			/*
+			 * If dec_stream_header() returns
+			 * XZ_UNSUPPORTED_CHECK, it is still possible
+			 * to continue decoding if working in multi-call
+			 * mode. Thus, update s->sequence before calling
+			 * dec_stream_header().
+			 */
+			s->sequence = SEQ_BLOCK_START;
+
+			ret = dec_stream_header(s);
+			if (ret != XZ_OK)
+				return ret;
+
+		case SEQ_BLOCK_START:
+			/* We need one byte of input to continue. */
+			if (b->in_pos == b->in_size)
+				return XZ_OK;
+
+			/* See if this is the beginning of the Index field. */
+			if (b->in[b->in_pos] == 0) {
+				s->in_start = b->in_pos++;
+				s->sequence = SEQ_INDEX;
+				break;
+			}
+
+			/*
+			 * Calculate the size of the Block Header and
+			 * prepare to decode it.
+			 */
+			s->block_header.size
+				= ((uint32_t)b->in[b->in_pos] + 1) * 4;
+
+			s->temp.size = s->block_header.size;
+			s->temp.pos = 0;
+			s->sequence = SEQ_BLOCK_HEADER;
+
+		case SEQ_BLOCK_HEADER:
+			if (!fill_temp(s, b))
+				return XZ_OK;
+
+			ret = dec_block_header(s);
+			if (ret != XZ_OK)
+				return ret;
+
+			s->sequence = SEQ_BLOCK_UNCOMPRESS;
+
+		case SEQ_BLOCK_UNCOMPRESS:
+			ret = dec_block(s, b);
+			if (ret != XZ_STREAM_END)
+				return ret;
+
+			s->sequence = SEQ_BLOCK_PADDING;
+
+		case SEQ_BLOCK_PADDING:
+			/*
+			 * Size of Compressed Data + Block Padding
+			 * must be a multiple of four. We don't need
+			 * s->block.compressed for anything else
+			 * anymore, so we use it here to test the size
+			 * of the Block Padding field.
+			 */
+			while (s->block.compressed & 3) {
+				if (b->in_pos == b->in_size)
+					return XZ_OK;
+
+				if (b->in[b->in_pos++] != 0)
+					return XZ_DATA_ERROR;
+
+				++s->block.compressed;
+			}
+
+			s->sequence = SEQ_BLOCK_CHECK;
+
+		case SEQ_BLOCK_CHECK:
+			if (s->check_type == XZ_CHECK_CRC32) {
+				ret = crc_validate(s, b, 32);
+				if (ret != XZ_STREAM_END)
+					return ret;
+			}
+			else if (IS_CRC64(s->check_type)) {
+				ret = crc_validate(s, b, 64);
+				if (ret != XZ_STREAM_END)
+					return ret;
+			}
+#ifdef XZ_DEC_ANY_CHECK
+			else if (!check_skip(s, b)) {
+				return XZ_OK;
+			}
+#endif
+
+			s->sequence = SEQ_BLOCK_START;
+			break;
+
+		case SEQ_INDEX:
+			ret = dec_index(s, b);
+			if (ret != XZ_STREAM_END)
+				return ret;
+
+			s->sequence = SEQ_INDEX_PADDING;
+
+		case SEQ_INDEX_PADDING:
+			while ((s->index.size + (b->in_pos - s->in_start))
+					& 3) {
+				if (b->in_pos == b->in_size) {
+					index_update(s, b);
+					return XZ_OK;
+				}
+
+				if (b->in[b->in_pos++] != 0)
+					return XZ_DATA_ERROR;
+			}
+
+			/* Finish the CRC32 value and Index size. */
+			index_update(s, b);
+
+			/* Compare the hashes to validate the Index field. */
+			if (!memeq(&s->block.hash, &s->index.hash,
+					sizeof(s->block.hash)))
+				return XZ_DATA_ERROR;
+
+			s->sequence = SEQ_INDEX_CRC32;
+
+		case SEQ_INDEX_CRC32:
+			ret = crc_validate(s, b, 32);
+			if (ret != XZ_STREAM_END)
+				return ret;
+
+			s->temp.size = STREAM_HEADER_SIZE;
+			s->sequence = SEQ_STREAM_FOOTER;
+
+		case SEQ_STREAM_FOOTER:
+			if (!fill_temp(s, b))
+				return XZ_OK;
+
+			return dec_stream_footer(s);
+		}
+	}
+
+	/* Never reached */
+}
+
+/*
+ * xz_dec_run() is a wrapper for dec_main() to handle some special cases in
+ * multi-call and single-call decoding.
+ *
+ * In multi-call mode, we must return XZ_BUF_ERROR when it seems clear that we
+ * are not going to make any progress anymore. This is to prevent the caller
+ * from calling us infinitely when the input file is truncated or otherwise
+ * corrupt. Since zlib-style API allows that the caller fills the input buffer
+ * only when the decoder doesn't produce any new output, we have to be careful
+ * to avoid returning XZ_BUF_ERROR too easily: XZ_BUF_ERROR is returned only
+ * after the second consecutive call to xz_dec_run() that makes no progress.
+ *
+ * In single-call mode, if we couldn't decode everything and no error
+ * occurred, either the input is truncated or the output buffer is too small.
+ * Since we know that the last input byte never produces any output, we know
+ * that if all the input was consumed and decoding wasn't finished, the file
+ * must be corrupt. Otherwise the output buffer has to be too small or the
+ * file is corrupt in a way that decoding it produces too big output.
+ *
+ * If single-call decoding fails, we reset b->in_pos and b->out_pos back to
+ * their original values. This is because with some filter chains there won't
+ * be any valid uncompressed data in the output buffer unless the decoding
+ * actually succeeds (that's the price to pay of using the output buffer as
+ * the workspace).
+ */
+XZ_EXTERN enum xz_ret xz_dec_run(struct xz_dec *s, struct xz_buf *b)
+{
+	size_t in_start;
+	size_t out_start;
+	enum xz_ret ret;
+
+	if (DEC_IS_SINGLE(s->mode))
+		xz_dec_reset(s);
+
+	in_start = b->in_pos;
+	out_start = b->out_pos;
+	ret = dec_main(s, b);
+
+	if (DEC_IS_SINGLE(s->mode)) {
+		if (ret == XZ_OK)
+			ret = b->in_pos == b->in_size
+					? XZ_DATA_ERROR : XZ_BUF_ERROR;
+
+		if (ret != XZ_STREAM_END) {
+			b->in_pos = in_start;
+			b->out_pos = out_start;
+		}
+
+	} else if (ret == XZ_OK && in_start == b->in_pos
+			&& out_start == b->out_pos) {
+		if (s->allow_buf_error)
+			ret = XZ_BUF_ERROR;
+
+		s->allow_buf_error = true;
+	} else {
+		s->allow_buf_error = false;
+	}
+
+	return ret;
+}
+
+XZ_EXTERN struct xz_dec *xz_dec_init(enum xz_mode mode, uint32_t dict_max)
+{
+	struct xz_dec *s = kmalloc(sizeof(*s), GFP_KERNEL);
+	if (s == NULL)
+		return NULL;
+
+	s->mode = mode;
+
+#ifdef XZ_DEC_BCJ
+	s->bcj = xz_dec_bcj_create(DEC_IS_SINGLE(mode));
+	if (s->bcj == NULL)
+		goto error_bcj;
+#endif
+
+	s->lzma2 = xz_dec_lzma2_create(mode, dict_max);
+	if (s->lzma2 == NULL)
+		goto error_lzma2;
+
+	xz_dec_reset(s);
+	return s;
+
+error_lzma2:
+#ifdef XZ_DEC_BCJ
+	xz_dec_bcj_end(s->bcj);
+error_bcj:
+#endif
+	kfree(s);
+	return NULL;
+}
+
+XZ_EXTERN void xz_dec_reset(struct xz_dec *s)
+{
+	s->sequence = SEQ_STREAM_HEADER;
+	s->allow_buf_error = false;
+	s->pos = 0;
+	s->crc = 0;
+	memzero(&s->block, sizeof(s->block));
+	memzero(&s->index, sizeof(s->index));
+	s->temp.pos = 0;
+	s->temp.size = STREAM_HEADER_SIZE;
+}
+
+XZ_EXTERN void xz_dec_end(struct xz_dec *s)
+{
+	if (s != NULL) {
+		xz_dec_lzma2_end(s->lzma2);
+#ifdef XZ_DEC_BCJ
+		xz_dec_bcj_end(s->bcj);
+#endif
+		kfree(s);
+	}
+}
diff --git a/depends/xz-embedded/src/xz_lzma2.h b/depends/xz-embedded/src/xz_lzma2.h
new file mode 100644
index 00000000..071d67be
--- /dev/null
+++ b/depends/xz-embedded/src/xz_lzma2.h
@@ -0,0 +1,204 @@
+/*
+ * LZMA2 definitions
+ *
+ * Authors: Lasse Collin <lasse.collin@tukaani.org>
+ *          Igor Pavlov <http://7-zip.org/>
+ *
+ * This file has been put into the public domain.
+ * You can do whatever you want with this file.
+ */
+
+#ifndef XZ_LZMA2_H
+#define XZ_LZMA2_H
+
+/* Range coder constants */
+#define RC_SHIFT_BITS 8
+#define RC_TOP_BITS 24
+#define RC_TOP_VALUE (1 << RC_TOP_BITS)
+#define RC_BIT_MODEL_TOTAL_BITS 11
+#define RC_BIT_MODEL_TOTAL (1 << RC_BIT_MODEL_TOTAL_BITS)
+#define RC_MOVE_BITS 5
+
+/*
+ * Maximum number of position states. A position state is the lowest pb
+ * number of bits of the current uncompressed offset. In some places there
+ * are different sets of probabilities for different position states.
+ */
+#define POS_STATES_MAX (1 << 4)
+
+/*
+ * This enum is used to track which LZMA symbols have occurred most recently
+ * and in which order. This information is used to predict the next symbol.
+ *
+ * Symbols:
+ *  - Literal: One 8-bit byte
+ *  - Match: Repeat a chunk of data at some distance
+ *  - Long repeat: Multi-byte match at a recently seen distance
+ *  - Short repeat: One-byte repeat at a recently seen distance
+ *
+ * The symbol names are in from STATE_oldest_older_previous. REP means
+ * either short or long repeated match, and NONLIT means any non-literal.
+ */
+enum lzma_state {
+	STATE_LIT_LIT,
+	STATE_MATCH_LIT_LIT,
+	STATE_REP_LIT_LIT,
+	STATE_SHORTREP_LIT_LIT,
+	STATE_MATCH_LIT,
+	STATE_REP_LIT,
+	STATE_SHORTREP_LIT,
+	STATE_LIT_MATCH,
+	STATE_LIT_LONGREP,
+	STATE_LIT_SHORTREP,
+	STATE_NONLIT_MATCH,
+	STATE_NONLIT_REP
+};
+
+/* Total number of states */
+#define STATES 12
+
+/* The lowest 7 states indicate that the previous state was a literal. */
+#define LIT_STATES 7
+
+/* Indicate that the latest symbol was a literal. */
+static inline void lzma_state_literal(enum lzma_state *state)
+{
+	if (*state <= STATE_SHORTREP_LIT_LIT)
+		*state = STATE_LIT_LIT;
+	else if (*state <= STATE_LIT_SHORTREP)
+		*state -= 3;
+	else
+		*state -= 6;
+}
+
+/* Indicate that the latest symbol was a match. */
+static inline void lzma_state_match(enum lzma_state *state)
+{
+	*state = *state < LIT_STATES ? STATE_LIT_MATCH : STATE_NONLIT_MATCH;
+}
+
+/* Indicate that the latest state was a long repeated match. */
+static inline void lzma_state_long_rep(enum lzma_state *state)
+{
+	*state = *state < LIT_STATES ? STATE_LIT_LONGREP : STATE_NONLIT_REP;
+}
+
+/* Indicate that the latest symbol was a short match. */
+static inline void lzma_state_short_rep(enum lzma_state *state)
+{
+	*state = *state < LIT_STATES ? STATE_LIT_SHORTREP : STATE_NONLIT_REP;
+}
+
+/* Test if the previous symbol was a literal. */
+static inline bool lzma_state_is_literal(enum lzma_state state)
+{
+	return state < LIT_STATES;
+}
+
+/* Each literal coder is divided in three sections:
+ *   - 0x001-0x0FF: Without match byte
+ *   - 0x101-0x1FF: With match byte; match bit is 0
+ *   - 0x201-0x2FF: With match byte; match bit is 1
+ *
+ * Match byte is used when the previous LZMA symbol was something else than
+ * a literal (that is, it was some kind of match).
+ */
+#define LITERAL_CODER_SIZE 0x300
+
+/* Maximum number of literal coders */
+#define LITERAL_CODERS_MAX (1 << 4)
+
+/* Minimum length of a match is two bytes. */
+#define MATCH_LEN_MIN 2
+
+/* Match length is encoded with 4, 5, or 10 bits.
+ *
+ * Length   Bits
+ *  2-9      4 = Choice=0 + 3 bits
+ * 10-17     5 = Choice=1 + Choice2=0 + 3 bits
+ * 18-273   10 = Choice=1 + Choice2=1 + 8 bits
+ */
+#define LEN_LOW_BITS 3
+#define LEN_LOW_SYMBOLS (1 << LEN_LOW_BITS)
+#define LEN_MID_BITS 3
+#define LEN_MID_SYMBOLS (1 << LEN_MID_BITS)
+#define LEN_HIGH_BITS 8
+#define LEN_HIGH_SYMBOLS (1 << LEN_HIGH_BITS)
+#define LEN_SYMBOLS (LEN_LOW_SYMBOLS + LEN_MID_SYMBOLS + LEN_HIGH_SYMBOLS)
+
+/*
+ * Maximum length of a match is 273 which is a result of the encoding
+ * described above.
+ */
+#define MATCH_LEN_MAX (MATCH_LEN_MIN + LEN_SYMBOLS - 1)
+
+/*
+ * Different sets of probabilities are used for match distances that have
+ * very short match length: Lengths of 2, 3, and 4 bytes have a separate
+ * set of probabilities for each length. The matches with longer length
+ * use a shared set of probabilities.
+ */
+#define DIST_STATES 4
+
+/*
+ * Get the index of the appropriate probability array for decoding
+ * the distance slot.
+ */
+static inline uint32_t lzma_get_dist_state(uint32_t len)
+{
+	return len < DIST_STATES + MATCH_LEN_MIN
+			? len - MATCH_LEN_MIN : DIST_STATES - 1;
+}
+
+/*
+ * The highest two bits of a 32-bit match distance are encoded using six bits.
+ * This six-bit value is called a distance slot. This way encoding a 32-bit
+ * value takes 6-36 bits, larger values taking more bits.
+ */
+#define DIST_SLOT_BITS 6
+#define DIST_SLOTS (1 << DIST_SLOT_BITS)
+
+/* Match distances up to 127 are fully encoded using probabilities. Since
+ * the highest two bits (distance slot) are always encoded using six bits,
+ * the distances 0-3 don't need any additional bits to encode, since the
+ * distance slot itself is the same as the actual distance. DIST_MODEL_START
+ * indicates the first distance slot where at least one additional bit is
+ * needed.
+ */
+#define DIST_MODEL_START 4
+
+/*
+ * Match distances greater than 127 are encoded in three pieces:
+ *   - distance slot: the highest two bits
+ *   - direct bits: 2-26 bits below the highest two bits
+ *   - alignment bits: four lowest bits
+ *
+ * Direct bits don't use any probabilities.
+ *
+ * The distance slot value of 14 is for distances 128-191.
+ */
+#define DIST_MODEL_END 14
+
+/* Distance slots that indicate a distance <= 127. */
+#define FULL_DISTANCES_BITS (DIST_MODEL_END / 2)
+#define FULL_DISTANCES (1 << FULL_DISTANCES_BITS)
+
+/*
+ * For match distances greater than 127, only the highest two bits and the
+ * lowest four bits (alignment) is encoded using probabilities.
+ */
+#define ALIGN_BITS 4
+#define ALIGN_SIZE (1 << ALIGN_BITS)
+#define ALIGN_MASK (ALIGN_SIZE - 1)
+
+/* Total number of all probability variables */
+#define PROBS_TOTAL (1846 + LITERAL_CODERS_MAX * LITERAL_CODER_SIZE)
+
+/*
+ * LZMA remembers the four most recent match distances. Reusing these
+ * distances tends to take less space than re-encoding the actual
+ * distance value.
+ */
+#define REPS 4
+
+#endif
diff --git a/depends/xz-embedded/src/xz_private.h b/depends/xz-embedded/src/xz_private.h
new file mode 100644
index 00000000..482b90f3
--- /dev/null
+++ b/depends/xz-embedded/src/xz_private.h
@@ -0,0 +1,156 @@
+/*
+ * Private includes and definitions
+ *
+ * Author: Lasse Collin <lasse.collin@tukaani.org>
+ *
+ * This file has been put into the public domain.
+ * You can do whatever you want with this file.
+ */
+
+#ifndef XZ_PRIVATE_H
+#define XZ_PRIVATE_H
+
+#ifdef __KERNEL__
+#	include <linux/xz.h>
+#	include <linux/kernel.h>
+#	include <asm/unaligned.h>
+	/* XZ_PREBOOT may be defined only via decompress_unxz.c. */
+#	ifndef XZ_PREBOOT
+#		include <linux/slab.h>
+#		include <linux/vmalloc.h>
+#		include <linux/string.h>
+#		ifdef CONFIG_XZ_DEC_X86
+#			define XZ_DEC_X86
+#		endif
+#		ifdef CONFIG_XZ_DEC_POWERPC
+#			define XZ_DEC_POWERPC
+#		endif
+#		ifdef CONFIG_XZ_DEC_IA64
+#			define XZ_DEC_IA64
+#		endif
+#		ifdef CONFIG_XZ_DEC_ARM
+#			define XZ_DEC_ARM
+#		endif
+#		ifdef CONFIG_XZ_DEC_ARMTHUMB
+#			define XZ_DEC_ARMTHUMB
+#		endif
+#		ifdef CONFIG_XZ_DEC_SPARC
+#			define XZ_DEC_SPARC
+#		endif
+#		define memeq(a, b, size) (memcmp(a, b, size) == 0)
+#		define memzero(buf, size) memset(buf, 0, size)
+#	endif
+#	define get_le32(p) le32_to_cpup((const uint32_t *)(p))
+#else
+	/*
+	 * For userspace builds, use a separate header to define the required
+	 * macros and functions. This makes it easier to adapt the code into
+	 * different environments and avoids clutter in the Linux kernel tree.
+	 */
+#	include "xz_config.h"
+#endif
+
+/* If no specific decoding mode is requested, enable support for all modes. */
+#if !defined(XZ_DEC_SINGLE) && !defined(XZ_DEC_PREALLOC) \
+		&& !defined(XZ_DEC_DYNALLOC)
+#	define XZ_DEC_SINGLE
+#	define XZ_DEC_PREALLOC
+#	define XZ_DEC_DYNALLOC
+#endif
+
+/*
+ * The DEC_IS_foo(mode) macros are used in "if" statements. If only some
+ * of the supported modes are enabled, these macros will evaluate to true or
+ * false at compile time and thus allow the compiler to omit unneeded code.
+ */
+#ifdef XZ_DEC_SINGLE
+#	define DEC_IS_SINGLE(mode) ((mode) == XZ_SINGLE)
+#else
+#	define DEC_IS_SINGLE(mode) (false)
+#endif
+
+#ifdef XZ_DEC_PREALLOC
+#	define DEC_IS_PREALLOC(mode) ((mode) == XZ_PREALLOC)
+#else
+#	define DEC_IS_PREALLOC(mode) (false)
+#endif
+
+#ifdef XZ_DEC_DYNALLOC
+#	define DEC_IS_DYNALLOC(mode) ((mode) == XZ_DYNALLOC)
+#else
+#	define DEC_IS_DYNALLOC(mode) (false)
+#endif
+
+#if !defined(XZ_DEC_SINGLE)
+#	define DEC_IS_MULTI(mode) (true)
+#elif defined(XZ_DEC_PREALLOC) || defined(XZ_DEC_DYNALLOC)
+#	define DEC_IS_MULTI(mode) ((mode) != XZ_SINGLE)
+#else
+#	define DEC_IS_MULTI(mode) (false)
+#endif
+
+/*
+ * If any of the BCJ filter decoders are wanted, define XZ_DEC_BCJ.
+ * XZ_DEC_BCJ is used to enable generic support for BCJ decoders.
+ */
+#ifndef XZ_DEC_BCJ
+#	if defined(XZ_DEC_X86) || defined(XZ_DEC_POWERPC) \
+			|| defined(XZ_DEC_IA64) || defined(XZ_DEC_ARM) \
+			|| defined(XZ_DEC_ARM) || defined(XZ_DEC_ARMTHUMB) \
+			|| defined(XZ_DEC_SPARC)
+#		define XZ_DEC_BCJ
+#	endif
+#endif
+
+/*
+ * Allocate memory for LZMA2 decoder. xz_dec_lzma2_reset() must be used
+ * before calling xz_dec_lzma2_run().
+ */
+XZ_EXTERN struct xz_dec_lzma2 *xz_dec_lzma2_create(enum xz_mode mode,
+						   uint32_t dict_max);
+
+/*
+ * Decode the LZMA2 properties (one byte) and reset the decoder. Return
+ * XZ_OK on success, XZ_MEMLIMIT_ERROR if the preallocated dictionary is not
+ * big enough, and XZ_OPTIONS_ERROR if props indicates something that this
+ * decoder doesn't support.
+ */
+XZ_EXTERN enum xz_ret xz_dec_lzma2_reset(struct xz_dec_lzma2 *s,
+					 uint8_t props);
+
+/* Decode raw LZMA2 stream from b->in to b->out. */
+XZ_EXTERN enum xz_ret xz_dec_lzma2_run(struct xz_dec_lzma2 *s,
+				       struct xz_buf *b);
+
+/* Free the memory allocated for the LZMA2 decoder. */
+XZ_EXTERN void xz_dec_lzma2_end(struct xz_dec_lzma2 *s);
+
+#ifdef XZ_DEC_BCJ
+/*
+ * Allocate memory for BCJ decoders. xz_dec_bcj_reset() must be used before
+ * calling xz_dec_bcj_run().
+ */
+XZ_EXTERN struct xz_dec_bcj *xz_dec_bcj_create(bool single_call);
+
+/*
+ * Decode the Filter ID of a BCJ filter. This implementation doesn't
+ * support custom start offsets, so no decoding of Filter Properties
+ * is needed. Returns XZ_OK if the given Filter ID is supported.
+ * Otherwise XZ_OPTIONS_ERROR is returned.
+ */
+XZ_EXTERN enum xz_ret xz_dec_bcj_reset(struct xz_dec_bcj *s, uint8_t id);
+
+/*
+ * Decode raw BCJ + LZMA2 stream. This must be used only if there actually is
+ * a BCJ filter in the chain. If the chain has only LZMA2, xz_dec_lzma2_run()
+ * must be called directly.
+ */
+XZ_EXTERN enum xz_ret xz_dec_bcj_run(struct xz_dec_bcj *s,
+				     struct xz_dec_lzma2 *lzma2,
+				     struct xz_buf *b);
+
+/* Free the memory allocated for the BCJ filters. */
+#define xz_dec_bcj_end(s) kfree(s)
+#endif
+
+#endif
diff --git a/depends/xz-embedded/src/xz_stream.h b/depends/xz-embedded/src/xz_stream.h
new file mode 100644
index 00000000..66cb5a70
--- /dev/null
+++ b/depends/xz-embedded/src/xz_stream.h
@@ -0,0 +1,62 @@
+/*
+ * Definitions for handling the .xz file format
+ *
+ * Author: Lasse Collin <lasse.collin@tukaani.org>
+ *
+ * This file has been put into the public domain.
+ * You can do whatever you want with this file.
+ */
+
+#ifndef XZ_STREAM_H
+#define XZ_STREAM_H
+
+#if defined(__KERNEL__) && !XZ_INTERNAL_CRC32
+#	include <linux/crc32.h>
+#	undef crc32
+#	define xz_crc32(buf, size, crc) \
+		(~crc32_le(~(uint32_t)(crc), buf, size))
+#endif
+
+/*
+ * See the .xz file format specification at
+ * http://tukaani.org/xz/xz-file-format.txt
+ * to understand the container format.
+ */
+
+#define STREAM_HEADER_SIZE 12
+
+#define HEADER_MAGIC "\3757zXZ"
+#define HEADER_MAGIC_SIZE 6
+
+#define FOOTER_MAGIC "YZ"
+#define FOOTER_MAGIC_SIZE 2
+
+/*
+ * Variable-length integer can hold a 63-bit unsigned integer or a special
+ * value indicating that the value is unknown.
+ *
+ * Experimental: vli_type can be defined to uint32_t to save a few bytes
+ * in code size (no effect on speed). Doing so limits the uncompressed and
+ * compressed size of the file to less than 256 MiB and may also weaken
+ * error detection slightly.
+ */
+typedef uint64_t vli_type;
+
+#define VLI_MAX ((vli_type)-1 / 2)
+#define VLI_UNKNOWN ((vli_type)-1)
+
+/* Maximum encoded size of a VLI */
+#define VLI_BYTES_MAX (sizeof(vli_type) * 8 / 7)
+
+/* Integrity Check types */
+enum xz_check {
+	XZ_CHECK_NONE = 0,
+	XZ_CHECK_CRC32 = 1,
+	XZ_CHECK_CRC64 = 4,
+	XZ_CHECK_SHA256 = 10
+};
+
+/* Maximum possible Check ID */
+#define XZ_CHECK_MAX 15
+
+#endif
diff --git a/depends/xz-embedded/xzminidec.c b/depends/xz-embedded/xzminidec.c
new file mode 100644
index 00000000..ba074131
--- /dev/null
+++ b/depends/xz-embedded/xzminidec.c
@@ -0,0 +1,135 @@
+/*
+ * Simple XZ decoder command line tool
+ *
+ * Author: Lasse Collin <lasse.collin@tukaani.org>
+ *
+ * This file has been put into the public domain.
+ * You can do whatever you want with this file.
+ */
+
+/*
+ * This is really limited: Not all filters from .xz format are supported,
+ * only CRC32 is supported as the integrity check, and decoding of
+ * concatenated .xz streams is not supported. Thus, you may want to look
+ * at xzdec from XZ Utils if a few KiB bigger tool is not a problem.
+ */
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+#include "xz.h"
+
+static uint8_t in[BUFSIZ];
+static uint8_t out[BUFSIZ];
+
+int main(int argc, char **argv)
+{
+	struct xz_buf b;
+	struct xz_dec *s;
+	enum xz_ret ret;
+	const char *msg;
+
+	if (argc >= 2 && strcmp(argv[1], "--help") == 0) {
+		fputs("Uncompress a .xz file from stdin to stdout.\n"
+				"Arguments other than `--help' are ignored.\n",
+				stdout);
+		return 0;
+	}
+
+	xz_crc32_init();
+#ifdef XZ_USE_CRC64
+	xz_crc64_init();
+#endif
+
+	/*
+	 * Support up to 64 MiB dictionary. The actually needed memory
+	 * is allocated once the headers have been parsed.
+	 */
+	s = xz_dec_init(XZ_DYNALLOC, 1 << 26);
+	if (s == NULL) {
+		msg = "Memory allocation failed\n";
+		goto error;
+	}
+
+	b.in = in;
+	b.in_pos = 0;
+	b.in_size = 0;
+	b.out = out;
+	b.out_pos = 0;
+	b.out_size = BUFSIZ;
+
+	while (true) {
+		if (b.in_pos == b.in_size) {
+			b.in_size = fread(in, 1, sizeof(in), stdin);
+			b.in_pos = 0;
+		}
+
+		ret = xz_dec_run(s, &b);
+
+		if (b.out_pos == sizeof(out)) {
+			if (fwrite(out, 1, b.out_pos, stdout) != b.out_pos) {
+				msg = "Write error\n";
+				goto error;
+			}
+
+			b.out_pos = 0;
+		}
+
+		if (ret == XZ_OK)
+			continue;
+
+#ifdef XZ_DEC_ANY_CHECK
+		if (ret == XZ_UNSUPPORTED_CHECK) {
+			fputs(argv[0], stderr);
+			fputs(": ", stderr);
+			fputs("Unsupported check; not verifying "
+					"file integrity\n", stderr);
+			continue;
+		}
+#endif
+
+		if (fwrite(out, 1, b.out_pos, stdout) != b.out_pos
+				|| fclose(stdout)) {
+			msg = "Write error\n";
+			goto error;
+		}
+
+		switch (ret) {
+		case XZ_STREAM_END:
+			xz_dec_end(s);
+			return 0;
+
+		case XZ_MEM_ERROR:
+			msg = "Memory allocation failed\n";
+			goto error;
+
+		case XZ_MEMLIMIT_ERROR:
+			msg = "Memory usage limit reached\n";
+			goto error;
+
+		case XZ_FORMAT_ERROR:
+			msg = "Not a .xz file\n";
+			goto error;
+
+		case XZ_OPTIONS_ERROR:
+			msg = "Unsupported options in the .xz headers\n";
+			goto error;
+
+		case XZ_DATA_ERROR:
+		case XZ_BUF_ERROR:
+			msg = "File is corrupt\n";
+			goto error;
+
+		default:
+			msg = "Bug!\n";
+			goto error;
+		}
+	}
+
+error:
+	xz_dec_end(s);
+	fputs(argv[0], stderr);
+	fputs(": ", stderr);
+	fputs(msg, stderr);
+	return 1;
+}