使用CMake如何正确链接从源代码编译生成的zfs版本

1. Findzfs.cmake 配置（存放路径：项目根目录/cmake/modules/Findzfs.cmake） #

include(FindPackageHandleStandardArgs)

# 查找ZFS头文件路径
find_path(ZFS_INCLUDE_DIR
    NAMES libzfs.h
    PATHS /usr/include/libzfs /usr/local/include/libzfs /opt/zfs/include
    PATH_SUFFIXES libzfs
)

# 查找ZFS相关所有依赖库
find_library(ZFS_LIBRARY NAMES zfs PATHS /usr/lib /usr/local/lib /opt/zfs/lib)
find_library(ZPOOL_LIBRARY NAMES zpool PATHS /usr/lib /usr/local/lib /opt/zfs/lib)
find_library(NVPAIR_LIBRARY NAMES nvpair PATHS /usr/lib /usr/local/lib /opt/zfs/lib)
find_library(UUTIL_LIBRARY NAMES uutil PATHS /usr/lib /usr/local/lib /opt/zfs/lib)
find_library(M_LIBRARY NAMES m)

# 验证核心组件是否找到
find_package_handle_standard_args(zfs
    REQUIRED_VARS ZFS_INCLUDE_DIR ZFS_LIBRARY ZPOOL_LIBRARY NVPAIR_LIBRARY UUTIL_LIBRARY M_LIBRARY
)

if(zfs_FOUND)
    set(ZFS_INCLUDE_DIRS ${ZFS_INCLUDE_DIR})
    # 按链接顺序配置所有依赖库
    set(ZFS_LIBRARIES
        ${ZFS_LIBRARY}
        ${ZPOOL_LIBRARY}
        ${NVPAIR_LIBRARY}
        ${UUTIL_LIBRARY}
        ${M_LIBRARY}
    )

    # 导入目标，自动传导依赖
    if(NOT TARGET zfs::zfs)
        add_library(zfs::zfs INTERFACE IMPORTED)
        set_target_properties(zfs::zfs PROPERTIES
            INTERFACE_INCLUDE_DIRECTORIES "${ZFS_INCLUDE_DIRS}"
            INTERFACE_LINK_LIBRARIES "${ZFS_LIBRARIES};Threads::Threads;blkid;udev"
        )
    endif()
endif()

mark_as_advanced(ZFS_INCLUDE_DIR ZFS_LIBRARY ZPOOL_LIBRARY NVPAIR_LIBRARY UUTIL_LIBRARY M_LIBRARY)

2. 项目根目录CMakeLists.txt配置 #

cmake_minimum_required(VERSION 3.16)
project(your_project_name C)

# 指定自定义Find模块存放路径
set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules" ${CMAKE_MODULE_PATH})

# 查找依赖
find_package(Threads REQUIRED)
find_package(blkid REQUIRED)
find_package(udev REQUIRED)
find_package(zfs REQUIRED)

# 替换为你实际的源码文件和目标名称
add_executable(your_target main.c)

# 仅需链接zfs::zfs即可，所有依赖自动按正确顺序传导
target_link_libraries(your_target PRIVATE zfs::zfs)

生效说明 #

• 上述配置已经将uu_avl_walk_start所属的libuutil、pow所属的libm、以及pthread、libblkid、libudev等所有依赖按正确链接顺序配置到ZFS导入目标中，无需额外手动调整链接参数
• 在提供的复现容器中替换对应文件后，执行cmake . && make即可完成正常编译链接

内容的提问来源于stack exchange，提问作者FailureGod