用库创建Makefile

Question

用库创建Makefile

如何使用下面的命令创建一个简单的makefile？

 g++ -Wall -I/usr/include/opencv -I/usr/include/opencv2 -L/usr/lib/ -g -o exe sourc1.cpp sourc2.cpp sourc3.cpp -lopencv_core
  -lopencv_imgproc -lopencv_highgui -lopencv_ml -lopencv_video -lopencv_features2d -lopencv_calib3d -lopencv_objdetect -lopencv_contrib 
  -lopencv_legacy -lv4l1 -lv4l2 -lv4lconvert -pthread

我引用了这个链接但我现在很困惑。