cmake 显示选项

CMake配置：构建静态库与动态库的选择

最新推荐文章于 2025-05-18 21:30:18 发布

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这篇博客介绍了如何使用CMake配置项目，根据用户选项选择编译为静态库或动态库。通过`cmake_minimum_required`、`project`、`option`和`cmake_dependent_option`等命令，设置了编译选项，并根据选项添加对应的库和可执行文件。示例代码展示了如何根据用户输入决定构建静态库、动态库或直接编译成可执行文件。

代码在git

# set minimum cmake version
cmake_minimum_required(VERSION 3.5 FATAL_ERROR)

# project name and language
project(recipe-05 LANGUAGES CXX)

# expose options to the user
option(USE_LIBRARY "Compile sources into a library" ON)

message(STATUS "Compile sources into a library? ${USE_LIBRARY}")

include(CMakeDependentOption)

# second option depends on the value of the first
cmake_dependent_option(
	MAKE_STATIC_LIBRARY "Compile sources into a static library" OFF
  "USE_LIBRARY" ON
  )

# third option depends on the value of the first
cmake_dependent_option(
	MAKE_SHARED_LIBRARY "Compile sources into a shared library" ON
  "USE_LIBRARY" ON
  )

set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)

# list sources
list(APPEND _sources Message.hpp Message.cpp)

if(USE_LIBRARY)
  message(STATUS "Compile sources into a STATIC library? ${MAKE_STATIC_LIBRARY}")
  message(STATUS "Compile sources into a SHARED library? ${MAKE_SHARED_LIBRARY}")

  if(MAKE_SHARED_LIBRARY)
    add_library(message SHARED ${_sources})

    add_executable(hello-world hello-world.cpp)

    target_link_libraries(hello-world message)
  endif()

  if(MAKE_STATIC_LIBRARY)
    add_library(message STATIC ${_sources})

    add_executable(hello-world hello-world.cpp)

    target_link_libraries(hello-world message)
  endif()
else()
  add_executable(hello-world hello-world.cpp ${_sources})
endif()