链接静态库时,Cmake链接路径错误

问题描述 投票:2回答:1

我有一个cmake项目,其中包含我自己的静态库和可执行文件。简化的项目结构为:

顶级cmake:

cmake_minimum_required(VERSION 3.16)

project(mainproject 
    VERSION 0.0.1 
    DESCRIPTION ""
    LANGUAGES CXX
)

list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake")

#include libs
include(LibsPath)

add_subdirectory(teststaticlib)
add_subdirectory(testexe)

cmake / LibsPath.cmake:

        set(CMAKE_PREFIX_PATH
            "C:/tesseract41_x64-static/leptonica_x64-windows-static"
            "C:/tesseract41_x64-static/tiff_x64-windows-static"
            "C:/tesseract41_x64-static/tesseract_x64-windows-static"
            "C:/tesseract41_x64-static/libpng_x64-windows-static"
            "C:/tesseract41_x64-static/libjpeg-turbo_x64-windows-static"
            "C:/tesseract41_x64-static/giflib_x64-windows-static"
            "C:/tesseract41_x64-static/libwebp_x64-windows-static"
            "C:/opencv4_x64-windows-static"
            "C:/protobuf_x64-windows-static"
            "C:/hdf5_x64-windows-static"
            "C:/szip_x64-windows-static"
    )

基本上是项目直接依赖项的路径-tesseractopencv及其依赖项。

静态库的Cmake文件(teststaticlib / CMakeLists.txt):

cmake_minimum_required(VERSION 3.16)

project(teststaticlib)

set(CMAKE_GENERATOR "Ninja")
set_property(GLOBAL PROPERTY USE_FOLDERS ON)
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake")

#enable unicode
add_definitions(-DUNICODE -D_UNICODE)

set(SOURCE_FILES
    #...source files
)
set(PRIVATE_HEADER_FILES 
    #... header files
)
set(PUBLIC_HEADER_FILES
    #... header files
)
add_library(teststaticlib STATIC ${SOURCE_FILES} ${PRIVATE_HEADER_FILES} ${PUBLIC_HEADER_FILES})
add_library(teststaticlib::teststaticlib ALIAS teststaticlib)
set_target_properties(teststaticlib PROPERTIES OUTPUT_NAME teststaticlib)
target_include_directories(teststaticlib 
    PRIVATE 
        ${CMAKE_CURRENT_SOURCE_DIR}/src
    PUBLIC
        ${CMAKE_CURRENT_SOURCE_DIR}/include
)

#precompiled headers
target_precompile_headers(teststaticlib PRIVATE src/pch.h)

#link libs
find_package(tesseract CONFIG REQUIRED)
find_package(opencv CONFIG REQUIRED core imgproc highgui)

include_directories(${Tesseract_INCLUDE_DIRS})
include_directories(${OpenCV_INCLUDE_DIRS})
target_link_libraries(teststaticlib 
    PRIVATE 
        ${Tesseract_LIBRARIES}
        ${OpenCV_LIBS}
)

到目前为止,一切正常。 teststaticlib.lib正常运行,没有任何错误。但是,一旦我将任何可执行文件添加到项目中,并将teststaticlib链接到它:

testexe / CMakeLists.txt

cmake_minimum_required(VERSION 3.16)

project(testexe)

set(SOURCE_FILES
    main.cpp
)
add_executable(testexe ${SOURCE_FILES})

target_link_libraries(testexe 
    PRIVATE 
        teststaticlib::teststaticlib
)

构建时出现此错误:

忍者:错误:'C:/tesseract41_x64-static/leptonica_x64-windows-static/debug/lib/gif.lib','debug / mainproject / testexe.exe'所需,缺少它,并且没有已知规则可以使它运行] >

为什么会出现此错误,以及如何解决?当您从gif中看到路径不同时,为什么cmake在leptonica文件夹内寻找我直接依赖的子依赖(在这种情况下,tesseractleptonicaLibsPath.cmake的依赖)?我知道这不是tessleptonica特定的问题,因为如果我将这些库更改为其他任何库,则模式仍然存在,并且其他库仍会出现相同的错误。因此,我的cmake文件中肯定有问题,但是我无法弄清楚错误在哪里。

编辑:试图更改我的库链接到PUBLIC,并向exe添加相同的依赖项。即使尝试将子依赖项gif链接到exe-仍然会收到相同的错误。

teststaticlib / CMakeLists.txt:

target_link_libraries(teststaticlib 
PUBLIC 
    ${Tesseract_LIBRARIES}
    ${OpenCV_LIBS}
)

testexe / CMakeLists.txt

    cmake_minimum_required(VERSION 3.16) 
project(testexe)

set(SOURCE_FILES
    main.cpp
)
add_executable(testexe ${SOURCE_FILES})

    find_package(tesseract CONFIG REQUIRED)
    find_package(opencv CONFIG REQUIRED core imgproc highgui)
    find_package(gif REQUIRED)
    include_directories(${Tesseract_INCLUDE_DIRS})
    include_directories(${OpenCV_INCLUDE_DIRS})
    include_directories(${GIF_INCLUDE_DIRS})

target_link_libraries(testexe 
    PRIVATE 
        ${GIF_LIBRARIES}
        ${Tesseract_LIBRARIES}
        ${OpenCV_LIBS}
        basicemul::basicemul
)
    

我有一个cmake项目,其中包含我自己的静态库和可执行文件。简化的项目结构为:顶级cmake:cmake_minimum_required(VERSION 3.16)project(mainproject ...

c++ cmake static lib
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3
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