【每天一个cmake技巧】简单的cmake demo

简单的cmake demo

一个简单的cmake 工程，包括生成动态库和链接动态库的demo工程和test工程。
demo下载链接： https://download.csdn.net/download/sinat_35178307/87243966

目录结构

该工程可以生成一个dll，一个调用dll的demo，一个test dll接口的工程。

• build ：cmake生成目录，过程文件保存在该目录下，output保存在build/build目录下
• include：包含dll需要 头文件
• src： 包含生成dll的源码文件
• test： 包含测试dll的main.cpp和cmake文件
• demo：包含调用dll的main.cpp和cmake文件

最顶层cmake

# CMakeLists.txt
cmake_minimum_required(VERSION 3.7.0)

# project name
project(cmakeDemo)

message(STATUS "----------------------------------------------------------")
message(STATUS "PROJECT_SOURCE_DIR          =    " ${PROJECT_SOURCE_DIR})

set(BINARY_DIR ${PROJECT_SOURCE_DIR}/build/build/bin/)
set(LIBRARY_DIR ${PROJECT_SOURCE_DIR}/build/build/lib)

# set bin dir
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_DEBUG ${BINARY_DIR})
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELEASE ${BINARY_DIR})

#set lib dir
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY_DEBUG ${LIBRARY_DIR})
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY_RELEASE ${LIBRARY_DIR}) 

message(STATUS "BINARY_DIR                  =    " ${BINARY_DIR})
message(STATUS "LIBRARY_DIR                 =    " ${LIBRARY_DIR})

set(INCLUDE_DIRS ${PROJECT_SOURCE_DIR}/include)
message(STATUS "INCLUDE_DIRS                =    " ${INCLUDE_DIRS})

add_subdirectory(demo)
add_subdirectory(src/dll_src)
add_subdirectory(test/test_dll)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29

include 文件夹

该目录下存放生成动态库的头文件

src文件夹

该目录下存放生成动态库的源码文件和cmake文件，该cmake文件会最终生成hello.dll

add_definitions(-DLICENSEVERIFY_EXPORTS)
set(HEADERS ${INCLUDE_DIRS}/hello.h )
add_library (hello SHARED ${HEADERS} hello.cpp )
target_compile_definitions(hello PRIVATE WIN_EXPORTS)
target_include_directories(hello PRIVATE ${INCLUDE_DIRS})
1
2
3
4
5

test文件夹

该目录下存放生成test_dll工程的源码文件和cmake文件，该cmake文件中会链接hello.dll文件

add_executable(test_dll test_dll.cpp)
target_include_directories(test_dll PRIVATE ${INCLUDE_DIRS})
target_link_libraries(test_dll  hello)
add_dependencies(test_dll  hello)
1
2
3
4

demo

和test目录下的文件类似，生成helloDemo.exe

#./demo/CMakeLists.txt
add_executable(HelloDemo  main.cpp )
target_include_directories(HelloDemo PRIVATE ${INCLUDE_DIRS})
target_link_libraries(HelloDemo LicenseVerify)
add_dependencies(HelloDemo LicenseVerify )
1
2
3
4
5