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cmake学习笔记

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2019-12-25 / 0 评论 / 0 点赞 / 3847 阅读 / 3038 字

1.cmake相对路径

在android平台可以采用相对路径的方式
在windows平台相对路径不能生效,需要通过绝对路径获取。我采用的方法是获取当前目录工程根目录,然后获取上级目录的方法(比较笨),网友还提供了通过STRING方法,然后通过正则获取想要的目录

  • 获取CMAKE_SOURCE_DIR上级目录
get_filename_component(PARENT_DIR $\{CMAKE_SOURCE_DIR\} DIRECTORY)  
message(STATUS ${PARENT_DIR})  

2.cmake设置ios安装路径

set_target_properties(test PROPERTIES BUILD_WITH_INSTALL_RPATH 1 INSTALL_NAME_DIR "@rpath")  

3.cmake打印信息

message(STATUS "CMAKE_SOURCE_DIR:${CMAKE_SOURCE_DIR}!")-->打印正常信息  

4.cmake各种目录设置

  • 方法1:
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/Lib)  
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/Lib)  
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/Bin)    
  • 方法2:
set(EXECUTABLE_OUTPUT_PATH ${CMAKE_SOURCE_DIR}/Bin)  
set(LIBRARY_OUTPUT_PATH ${CMAKE_SOURCE_DIR}/Lib)  
  • 方法3:(分别设置debug和release目录)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY_DEBUG ${CMAKE_SOURCE_DIR}/Lib)  
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY_DEBUG ${CMAKE_SOURCE_DIR}/Lib)  
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_DEBUG ${CMAKE_SOURCE_DIR}/Bin)  
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY_RELEASE ${CMAKE_SOURCE_DIR}/Lib)  
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY_RELEASE ${CMAKE_SOURCE_DIR}/Lib)  
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELEASE ${CMAKE_SOURCE_DIR}/Bin)  

5.VS工程设置目录结构

  • cmake中用于设置目录的方法为:
source_group(<name> [FILES <src>...] [REGULAR_EXPRESSION <regex>])
source_group(TREE <root> [PREFIX <prefix>] [FILES <src>...])

可以使用宏定义,保持工程结构和工程目录相同

macro(source_group_by_dir source_files)
    if(MSVC)
        set(sgbd_cur_dir ${CMAKE_CURRENT_SOURCE_DIR})
        foreach(sgbd_file ${${source_files}})
            string(REGEX REPLACE ${sgbd_cur_dir}/\(.*\) \\1 sgbd_fpath ${sgbd_file})
            string(REGEX REPLACE "\(.*\)/.*" \\1 sgbd_group_name ${sgbd_fpath})
            string(COMPARE EQUAL ${sgbd_fpath} ${sgbd_group_name} sgbd_nogroup)
            string(REPLACE "/" "\\" sgbd_group_name ${sgbd_group_name})
            if(sgbd_nogroup)
                set(sgbd_group_name "\\")
            endif(sgbd_nogroup)
            source_group(${sgbd_group_name} FILES ${sgbd_file})
        endforeach(sgbd_file)
    endif(MSVC)
endmacro(source_group_by_dir)
  • 使用方法:
AUX_SOURCE_DIRECTORY(${CMAKE_SOURCE_DIR}/src SRCS_LIST)  	
source_group_by_dir(SRCS_LIST)  
ADD_LIBRARY (Test STATIC ${SRCS_LIST})
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