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Learn OpenCV 4 by Building Projects - Second Edition by Prateek Joshi, Vinicius G. Mendonca, David Millan Escriva

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Making the script more complex

In this section, we are showing a more complex script that includes subfolders, libraries, and executables; all told, just two files and a few lines, as demonstrated in this script. It's not mandatory to create multiple CMakeLists.txt files, because we can specify everything in the main CMakeLists.txt file. However, it is more common to use different CMakeLists.txt files for each project subfolder, thereby making it more flexible and portable.

This example has a code structure folder, which contains one folder for a utils library and the root folder, which contains the main executable:

CMakeLists.txt 
main.cpp 
utils/ 
   CMakeLists.txt 
   computeTime.cpp 
   computeTime.h 
   logger.cpp 
   logger.h 
   plotting.cpp 
   plotting.h 

Then, ...

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