QT编译liblzma

liblzma库是xz utils的子集，这里先下载xz utils源码。

新建xz_lib文件夹。解压xz utils源码，取出extra,lib,src三个文件夹，并放入xz_lib文件夹中。

再将config.h.in重命名为config.h，放入xz_lib文件夹中，并修改成下面这样：


#ifndef CONFIG_H
#define CONFIG_H/* Prefix for symbols exported by tuklib_*.c files */
#define TUKLIB_SYMBOL_PREFIX lzma_/* How many MiB of RAM to assume if the real amount cannot be determined. */
#define ASSUME_RAM 128/* Define to 1 if crc32 integrity check is enabled. */
#define HAVE_CHECK_CRC32 1/* Define to 1 if crc64 integrity check is enabled. */
//#define HAVE_CHECK_CRC64 0
#undef HAVE_CHECK_CRC64/* Define to 1 if sha256 integrity check is enabled. */
#define HAVE_CHECK_SHA256 1/* Define to 1 if any of HAVE_DECODER_foo have been defined. */
#define HAVE_DECODERS 1/* Define to 1 if arm decoder is enabled. */
#undef HAVE_DECODER_ARM/* Define to 1 if armthumb decoder is enabled. */
#undef HAVE_DECODER_ARMTHUMB/* Define to 1 if delta decoder is enabled. */
#define HAVE_DECODER_DELTA 1/* Define to 1 if ia64 decoder is enabled. */
#undef HAVE_DECODER_IA64/* Define to 1 if lzma1 decoder is enabled. */
#define HAVE_DECODER_LZMA1 1/* Define to 1 if lzma2 decoder is enabled. */
#define HAVE_DECODER_LZMA2 1/* Define to 1 if powerpc decoder is enabled. */
#undef HAVE_DECODER_POWERPC/* Define to 1 if sparc decoder is enabled. */
#undef HAVE_DECODER_SPARC/* Define to 1 if x86 decoder is enabled. */
#define HAVE_DECODER_X86 1/* Define to 1 if any of HAVE_ENCODER_foo have been defined. */
#define HAVE_ENCODERS 1/* Define to 1 if arm encoder is enabled. */
#undef HAVE_ENCODER_ARM/* Define to 1 if armthumb encoder is enabled. */
#undef HAVE_ENCODER_ARMTHUMB/* Define to 1 if delta encoder is enabled. */
#define HAVE_ENCODER_DELTA 1/* Define to 1 if ia64 encoder is enabled. */
#undef HAVE_ENCODER_IA64/* Define to 1 if lzma1 encoder is enabled. */
#define HAVE_ENCODER_LZMA1 1/* Define to 1 if lzma2 encoder is enabled. */
#define HAVE_ENCODER_LZMA2 1/* Define to 1 if powerpc encoder is enabled. */
#undef HAVE_ENCODER_POWERPC/* Define to 1 if sparc encoder is enabled. */
#undef HAVE_ENCODER_SPARC/* Define to 1 if x86 encoder is enabled. */
#define HAVE_ENCODER_X86 1/* Define to 1 if you have the <inttypes.h> header file. */
#define HAVE_INTTYPES_H 1/* Define to 1 if you have the <limits.h> header file. */
#define HAVE_LIMITS_H 1/* Define to 1 to enable bt2 match finder. */
#define HAVE_MF_BT2 1/* Define to 1 to enable bt3 match finder. */
#define HAVE_MF_BT3 1/* Define to 1 to enable bt4 match finder. */
#define HAVE_MF_BT4 1/* Define to 1 to enable hc3 match finder. */
#define HAVE_MF_HC3 1/* Define to 1 to enable hc4 match finder. */
#define HAVE_MF_HC4 1/* Define to 1 if stdbool.h conforms to C99. */
#define HAVE_STDBOOL_H 1/* Define to 1 if you have the <stdint.h> header file. */
#define HAVE_STDINT_H 1/* Define to 1 if you have the <stdlib.h> header file. */
#define HAVE_STDLIB_H 1/* Define to 1 if you have the <string.h> header file. */
#define HAVE_STRING_H 1/* Define to 1 or 0, depending whether the compiler supports simple visibilitydeclarations. */
#define HAVE_VISIBILITY 0/* Define to 1 if the system has the type `_Bool'. */
#define HAVE__BOOL 1#ifdef _M_IX86
/* Define to 1 when using Windows 95 (and thus XP) compatible threads. Thisavoids use of features that were added in Windows Vista.This is used for 32-bit x86 builds for compatibility reasons since itmakes no measurable difference in performance compared to Vista threads. */
#define MYTHREAD_WIN95 1
#else
/* Define to 1 when using Windows Vista compatible threads. This uses featuresthat are not available on Windows XP. */
#define MYTHREAD_VISTA 1
#endif/* Define to 1 to disable debugging code. */
#define NDEBUG 1/* Define to the full name of this package. */
#define PACKAGE_NAME "XZ Utils"/* Define to the home page for this package. */
#define PACKAGE_URL "https://tukaani.org/xz/"#define PACKAGE_BUGREPORT "https://tukaani.org/xz/"/* The size of `size_t', as computed by sizeof. */
#ifdef _WIN64
#define SIZEOF_SIZE_T 8
#else
#define SIZEOF_SIZE_T 4
#endif/* Define to 1 if the number of available CPU cores can be detected withcpuset(2). */
#undef TUKLIB_CPUCORES_CPUSET/* Define to 1 if the number of available CPU cores can be detected withpstat_getdynamic(). */
#undef TUKLIB_CPUCORES_PSTAT_GETDYNAMIC/* Define to 1 if the number of available CPU cores can be detected withsched_getaffinity() */
#undef TUKLIB_CPUCORES_SCHED_GETAFFINITY/* Define to 1 if the number of available CPU cores can be detected withsysconf(_SC_NPROCESSORS_ONLN) or sysconf(_SC_NPROC_ONLN). */
#undef TUKLIB_CPUCORES_SYSCONF/* Define to 1 if the number of available CPU cores can be detected withsysctl(). */
#undef TUKLIB_CPUCORES_SYSCTL/* Define to 1 if the system supports fast unaligned access to 16-bit and32-bit integers. */
#undef TUKLIB_FAST_UNALIGNED_ACCESS/* Define to 1 if the amount of physical memory can be detected with_system_configuration.physmem. */
#undef TUKLIB_PHYSMEM_AIX/* Define to 1 if the amount of physical memory can be detected withgetinvent_r(). */
#undef TUKLIB_PHYSMEM_GETINVENT_R/* Define to 1 if the amount of physical memory can be detected withgetsysinfo(). */
#undef TUKLIB_PHYSMEM_GETSYSINFO/* Define to 1 if the amount of physical memory can be detected withpstat_getstatic(). */
#undef TUKLIB_PHYSMEM_PSTAT_GETSTATIC/* Define to 1 if the amount of physical memory can be detected withsysconf(_SC_PAGESIZE) and sysconf(_SC_PHYS_PAGES). */
#undef TUKLIB_PHYSMEM_SYSCONF/* Define to 1 if the amount of physical memory can be detected with sysctl().*/
#undef TUKLIB_PHYSMEM_SYSCTL/* Define to 1 if the amount of physical memory can be detected with Linuxsysinfo(). */
#undef TUKLIB_PHYSMEM_SYSINFO/* Define to 1 to use unsafe type punning, e.g. char *x = ...; *(int *)x =123; which violates strict aliasing rules and thus is undefined behaviorand might result in broken code. */
#undef TUKLIB_USE_UNSAFE_TYPE_PUNNING#endif

新建QT控制台工程，删除main.cpp，再将xz_lib文件夹放到工程目录中。

修改.pro为下面这样：

QT -= guiCONFIG += c++11 console
CONFIG -= app_bundle# The following define makes your compiler emit warnings if you use
# any Qt feature that has been marked deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS# You can also make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0SOURCES += \xz_lib/extra/scanlzma/scanlzma.c \xz_lib/lib/getopt.c \xz_lib/lib/getopt1.c \xz_lib/src/common/tuklib_cpucores.c \xz_lib/src/common/tuklib_exit.c \xz_lib/src/common/tuklib_mbstr_fw.c \xz_lib/src/common/tuklib_mbstr_width.c \xz_lib/src/common/tuklib_open_stdxxx.c \xz_lib/src/common/tuklib_physmem.c \xz_lib/src/common/tuklib_progname.c \xz_lib/src/liblzma/check/check.c \xz_lib/src/liblzma/check/crc32_fast.c \xz_lib/src/liblzma/check/crc32_small.c \xz_lib/src/liblzma/check/crc32_table.c \xz_lib/src/liblzma/check/crc64_fast.c \xz_lib/src/liblzma/check/crc64_small.c \xz_lib/src/liblzma/check/crc64_table.c \xz_lib/src/liblzma/check/sha256.c \xz_lib/src/liblzma/common/alone_decoder.c \xz_lib/src/liblzma/common/alone_encoder.c \xz_lib/src/liblzma/common/auto_decoder.c \xz_lib/src/liblzma/common/block_buffer_decoder.c \xz_lib/src/liblzma/common/block_buffer_encoder.c \xz_lib/src/liblzma/common/block_decoder.c \xz_lib/src/liblzma/common/block_encoder.c \xz_lib/src/liblzma/common/block_header_decoder.c \xz_lib/src/liblzma/common/block_header_encoder.c \xz_lib/src/liblzma/common/block_util.c \xz_lib/src/liblzma/common/common.c \xz_lib/src/liblzma/common/easy_buffer_encoder.c \xz_lib/src/liblzma/common/easy_decoder_memusage.c \xz_lib/src/liblzma/common/easy_encoder.c \xz_lib/src/liblzma/common/easy_encoder_memusage.c \xz_lib/src/liblzma/common/easy_preset.c \xz_lib/src/liblzma/common/filter_buffer_decoder.c \xz_lib/src/liblzma/common/filter_buffer_encoder.c \xz_lib/src/liblzma/common/filter_common.c \xz_lib/src/liblzma/common/filter_decoder.c \xz_lib/src/liblzma/common/filter_encoder.c \xz_lib/src/liblzma/common/filter_flags_decoder.c \xz_lib/src/liblzma/common/filter_flags_encoder.c \xz_lib/src/liblzma/common/index.c \xz_lib/src/liblzma/common/index_decoder.c \xz_lib/src/liblzma/common/index_encoder.c \xz_lib/src/liblzma/common/index_hash.c \xz_lib/src/liblzma/common/outqueue.c \xz_lib/src/liblzma/common/stream_buffer_decoder.c \xz_lib/src/liblzma/common/stream_buffer_encoder.c \xz_lib/src/liblzma/common/stream_decoder.c \xz_lib/src/liblzma/common/stream_encoder.c \xz_lib/src/liblzma/common/stream_encoder_mt.c \xz_lib/src/liblzma/common/stream_flags_common.c \xz_lib/src/liblzma/common/stream_flags_decoder.c \xz_lib/src/liblzma/common/stream_flags_encoder.c \xz_lib/src/liblzma/common/vli_decoder.c \xz_lib/src/liblzma/common/vli_encoder.c \xz_lib/src/liblzma/common/vli_size.c \xz_lib/src/liblzma/delta/delta_common.c \xz_lib/src/liblzma/delta/delta_decoder.c \xz_lib/src/liblzma/delta/delta_encoder.c \xz_lib/src/liblzma/lz/lz_decoder.c \xz_lib/src/liblzma/lz/lz_encoder.c \xz_lib/src/liblzma/lz/lz_encoder_mf.c \xz_lib/src/liblzma/lzma/fastpos_table.c \xz_lib/src/liblzma/lzma/lzma2_decoder.c \xz_lib/src/liblzma/lzma/lzma2_encoder.c \xz_lib/src/liblzma/lzma/lzma_decoder.c \xz_lib/src/liblzma/lzma/lzma_encoder.c \xz_lib/src/liblzma/lzma/lzma_encoder_optimum_fast.c \xz_lib/src/liblzma/lzma/lzma_encoder_optimum_normal.c \xz_lib/src/liblzma/lzma/lzma_encoder_presets.c \xz_lib/src/liblzma/rangecoder/price_table.c \xz_lib/src/liblzma/simple/simple_coder.c \xz_lib/src/liblzma/simple/simple_decoder.c \xz_lib/src/liblzma/simple/simple_encoder.c \xz_lib/src/liblzma/simple/x86.c \# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += targetHEADERS += \xz_lib/config.h \xz_lib/lib/getopt.h \xz_lib/lib/getopt_int.h \xz_lib/src/common/mythread.h \xz_lib/src/common/sysdefs.h \xz_lib/src/common/tuklib_common.h \xz_lib/src/common/tuklib_config.h \xz_lib/src/common/tuklib_cpucores.h \xz_lib/src/common/tuklib_exit.h \xz_lib/src/common/tuklib_gettext.h \xz_lib/src/common/tuklib_integer.h \xz_lib/src/common/tuklib_mbstr.h \xz_lib/src/common/tuklib_open_stdxxx.h \xz_lib/src/common/tuklib_physmem.h \xz_lib/src/common/tuklib_progname.h \xz_lib/src/liblzma/api/lzma.h \xz_lib/src/liblzma/check/check.h \xz_lib/src/liblzma/check/crc32_table_be.h \xz_lib/src/liblzma/check/crc32_table_le.h \xz_lib/src/liblzma/check/crc64_table_be.h \xz_lib/src/liblzma/check/crc64_table_le.h \xz_lib/src/liblzma/check/crc_macros.h \xz_lib/src/liblzma/common/alone_decoder.h \xz_lib/src/liblzma/common/block_buffer_encoder.h \xz_lib/src/liblzma/common/block_decoder.h \xz_lib/src/liblzma/common/block_encoder.h \xz_lib/src/liblzma/common/common.h \xz_lib/src/liblzma/common/easy_preset.h \xz_lib/src/liblzma/common/filter_common.h \xz_lib/src/liblzma/common/filter_decoder.h \xz_lib/src/liblzma/common/filter_encoder.h \xz_lib/src/liblzma/common/index.h \xz_lib/src/liblzma/common/index_encoder.h \xz_lib/src/liblzma/common/memcmplen.h \xz_lib/src/liblzma/common/outqueue.h \xz_lib/src/liblzma/common/stream_decoder.h \xz_lib/src/liblzma/common/stream_flags_common.h \xz_lib/src/liblzma/delta/delta_common.h \xz_lib/src/liblzma/delta/delta_decoder.h \xz_lib/src/liblzma/delta/delta_encoder.h \xz_lib/src/liblzma/delta/delta_private.h \xz_lib/src/liblzma/lz/lz_decoder.h \xz_lib/src/liblzma/lz/lz_encoder.h \xz_lib/src/liblzma/lz/lz_encoder_hash.h \xz_lib/src/liblzma/lz/lz_encoder_hash_table.h \xz_lib/src/liblzma/lzma/fastpos.h \xz_lib/src/liblzma/lzma/lzma2_decoder.h \xz_lib/src/liblzma/lzma/lzma2_encoder.h \xz_lib/src/liblzma/lzma/lzma_common.h \xz_lib/src/liblzma/lzma/lzma_decoder.h \xz_lib/src/liblzma/lzma/lzma_encoder.h \xz_lib/src/liblzma/lzma/lzma_encoder_private.h \xz_lib/src/liblzma/rangecoder/price.h \xz_lib/src/liblzma/rangecoder/range_common.h \xz_lib/src/liblzma/rangecoder/range_decoder.h \xz_lib/src/liblzma/rangecoder/range_encoder.h \xz_lib/src/liblzma/simple/simple_coder.h \xz_lib/src/liblzma/simple/simple_decoder.h \xz_lib/src/liblzma/simple/simple_encoder.h \xz_lib/src/liblzma/simple/simple_private.h \INCLUDEPATH += \
xz_lib \
xz_lib/lib \
xz_lib/src \
xz_lib/src/common \
xz_lib/src/liblzma \
xz_lib/src/liblzma/api \
xz_lib/src/liblzma/lzma \
xz_lib/src/liblzma/rangecoder \
xz_lib/src/liblzma/common \
xz_lib/src/liblzma/simple \
xz_lib/src/liblzma/lz \
xz_lib/src/liblzma/delta \
xz_lib/src/liblzma/check \

最终运行结果如下图所示：

其中main函数在extra\scanlzma文件夹中。

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