一个CMakeLists.txt的例子
参考:
https://www.hahack.com/codes/cmake/
https://blog.csdn.net/afei__/article/details/81201039
项目目录
-test
-include
-math.hpp
-src
-math.cpp
main.cpp
CMakeLists.txt
math.hpp:
1 double power(double base, int exponent);
math.cpp:
1 #include <math.hpp> 2 3 double power(double base, int exponent) 4 { 5 int result = base; 6 int i; 7 8 if (exponent == 0) { 9 return 1; 10 } 11 12 for(i = 1; i < exponent; ++i){ 13 result = result * base; 14 } 15 16 return result; 17 }
main.cpp:
1 #include <opencv2/opencv.hpp> 2 #include <opencv2/core/core.hpp> 3 #include <opencv2/highgui/highgui.hpp> 4 #include <iostream> 5 #include <math.hpp> 6 7 8 using namespace std; 9 using namespace cv; 10 11 int main(){ 12 cout<<CV_VERSION<<endl; 13 Mat im=imread("test.jpg"); 14 if(!im.empty()) 15 cout<<"读取图片成功"<<endl; 16 else 17 cout<<"读取图片失败"<<endl; 18 double res=power(2,3); 19 cout<<res<<endl; 20 return 0; 21 }
CMakeLists.txt:
#指定cmake 版本 CMAKE_MINIMUM_REQUIRED(VERSION 3.2) #指定项目名称，一般和项目的文件夹名称对应 PROJECT(test) SET(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/../bin) #设置可执行文件的输出目录 SET(LIBRARY_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/../lib) #上面的语句能设置库文件的输出目录 #头文件目录 INCLUDE_DIRECTORIES(include /usr/local/include/) #等价的设置方式 #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -I$/usr/local/include") #链接库路径 LINK_DIRECTORIES(/usr/local/lib/) #等价的设置方式 #set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -L$/usr/local/lib") #查找到指定的预编译库，并将它的路径存储在变量中 FIND_LIBRARY(OPENCV_LIB_PATH opencv_core) MESSAGE(${OPENCV_LIB_PATH})#/usr/local/lib/libopencv_core.so #源文件目录 AUX_SOURCE_DIRECTORY(. SRC_LIST) #也可以这样匹配 #FILE(GLOB SRC_LIST "*.cpp" "src/*.cpp") #添加子目录,子目录里有另一CMakeLists.txt待编译 #ADD_SUBDIRECTORY(src) #生成链接库，可以指定SHARED,STATIC参数 #ADD_LIBRARY(math STATIC math.cpp) ADD_LIBRARY(math SHARED src/math.cpp) #设置一些变量SET,LIST(APPEND/REMOVE_ITEM) #SET(SRC_LIST main.cpp) #LIST(APPEND SRC_LIST src/math.cpp) #LIST(REMOVE_ITEM SRC_LIST src/math.cpp) set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -g") SET(OPENCV_LIBS opencv_highgui opencv_imgcodecs opencv_core) #添加要编译的可执行文件 ADD_EXECUTABLE(main ${SRC_LIST}) #添加可执行文件所需要链接的库 TARGET_LINK_LIBRARIES(main ${OPENCV_LIBS} math)