libhello 上。 5，为 target 添加共享库 我们现在需要完成的任务是将目标文件链接到 libhello，这里我们需要引入两个新的指令 LINK_DIRECTORIES 和 TARGET_LINK_LIBRARIES LINK_DIRECTORIES 的全部语法是： LINK_DIRECTORIES(directory1 directory2 ...) 这个指令非常简单，添加非标准的共享 这个指令非常简单，添加非标准的共享库搜索路径，比如，在工程内部同时存在共享库和可 执行二进制，在编译时就需要指定一下这些共享库的路径。这个例子中我们没有用到这个指 令。 TARGET_LINK_LIBRARIES 的全部语法是: TARGET_LINK_LIBRARIES(target library1 library2 为了解决我们前面遇到的 HelloFunc 未定义错误，我们需要作的是向 src/CMakeLists.txt 中添加如下指令： TARGET_LINK_LIBRARIES(main hello) 也可以写成 TARGET_LINK_LIBRARIES(main libhello.so) 这里的 hello 指的是我们上一节构建的共享库 libhello. 进入 build 目录重新进行构建。

include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake) conan_basic_setup() add_executable(timer timer.cpp) target_link_libraries(timer ${CONAN_LIBS}) 4.2 Installing dependencies If you have a terminal with light colors 4.5 (continued from previous page) if(ENABLE_TESTING) add_executable(example test.cpp) target_link_libraries(example ${CONAN_LIBS}) enable_testing() add_test(NAME example WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/bin include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake) conan_basic_setup() add_executable(timer timer.cpp) target_link_libraries(timer ${CONAN_LIBS}) 121 conan Documentation, Release 1.4.5 The conan_basic_setup() is

include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake) conan_basic_setup() add_executable(timer timer.cpp) target_link_libraries(timer ${CONAN_LIBS}) 4.2 Installing dependencies If you have a terminal with light colors 5.2 (continued from previous page) if(ENABLE_TESTING) add_executable(example test.cpp) target_link_libraries(example ${CONAN_LIBS}) enable_testing() add_test(NAME example WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/bin include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake) conan_basic_setup() add_executable(timer timer.cpp) target_link_libraries(timer ${CONAN_LIBS}) The conan_basic_setup() is split in smaller macros, that should be self

include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake) conan_basic_setup() add_executable(timer timer.cpp) target_link_libraries(timer ${CONAN_LIBS}) 3.2 Installing dependencies If you have a terminal with light colors 6.1 (continued from previous page) if(ENABLE_TESTING) add_executable(example test.cpp) target_link_libraries(example ${CONAN_LIBS}) enable_testing() add_test(NAME example WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/bin include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake) conan_basic_setup() add_executable(timer timer.cpp) target_link_libraries(timer ${CONAN_LIBS}) The conan_basic_setup() is split in smaller macros, that should be self

include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake) conan_basic_setup() add_executable(timer timer.cpp) target_link_libraries(timer ${CONAN_LIBS}) 3.2 Installing Dependencies To improve visibility, if you have a terminal 7.4 (continued from previous page) if(ENABLE_TESTING) add_executable(example test.cpp) target_link_libraries(example ${CONAN_LIBS}) enable_testing() add_test(NAME example WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/bin include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake) conan_basic_setup() add_executable(timer timer.cpp) target_link_libraries(timer ${CONAN_LIBS}) The conan_basic_setup() is split in smaller macros, that should be self

add_library(SqrtLibrary STATIC mysqrt.cxx) target_link_libraries(MathFunctions PUBLIC SqrtLibrary) add_executable(Tutorial tutorial.cxx) target_link_libraries(Tutorial PUBLIC MathFunctions) % ninja -v part of the build find_package(bar REQUIRED) # external to the build add_executable(foo) target_link_libraries(foo bar) # makes no difference which bar # bar could be in this build or could be from find_package "Link to default component(s)." ON) if (USE_DEFAULT_COMPONENTS) target_link_libraries(demo spdlog) else() target_link_libraries(demo spdlog::spdlog) endif() 69Configure [0/1] Running CMake to regenerate

include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake) conan_basic_setup() add_executable(md5 md5.cpp) target_link_libraries(md5 ${CONAN_LIBS}) 8. Now we are ready to build and run our Encrypter app: (win) $ cmake 8.4 (continued from previous page) if(ENABLE_TESTING) add_executable(example test.cpp) target_link_libraries(example ${CONAN_LIBS}) enable_testing() add_test(NAME example WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/bin include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake) conan_basic_setup() add_executable(timer timer.cpp) target_link_libraries(timer ${CONAN_LIBS}) The conan_basic_setup() is split in smaller macros, that should be self

include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake) conan_basic_setup() add_executable(md5 md5.cpp) target_link_libraries(md5 ${CONAN_LIBS}) 8. Now we are ready to build and run our Encrypter app: (win) $ cmake 9.2 (continued from previous page) if(ENABLE_TESTING) add_executable(example test.cpp) target_link_libraries(example ${CONAN_LIBS}) enable_testing() add_test(NAME example WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/bin include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake) conan_basic_setup() add_executable(timer timer.cpp) target_link_libraries(timer ${CONAN_LIBS}) The conan_basic_setup() is split in smaller macros, that should be self

These days this is handled by build system abstractions and is hidden away from developers target_link_libraries(hello_world PRIVATE fmt::fmt)A typical library package “fmt” package ├── include │ └── set(CMAKE_CXX_EXTENSIONS OFF) find_package(fmt REQUIRED) add_executable(hello hello_world.cpp) target_link_libraries(hello PRIVATE fmt::fmt) CMakeLists.txt import fmt; int main() { fmt::print("Hello, world FetchContent_MakeAvailable(fmt) find_package(fmt REQUIRED) add_executable(hello hello_world.cpp) target_link_libraries(hello PRIVATE fmt::fmt) target_compile_options(hello PRIVATE "-std=c++23") [7/8] Building

include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake) conan_basic_setup() add_executable(md5 md5.cpp) target_link_libraries(md5 ${CONAN_LIBS}) 8. Now we are ready to build and run our Encrypter app: (win) $ cmake 10.2 (continued from previous page) if(ENABLE_TESTING) add_executable(example test.cpp) target_link_libraries(example ${CONAN_LIBS}) enable_testing() add_test(NAME example WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/bin include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake) conan_basic_setup() add_executable(timer timer.cpp) target_link_libraries(timer ${CONAN_LIBS}) The conan_basic_setup() is split in smaller macros, that should be self