Learn OpenCV 4 by Building Projects - Second Edition

Basic CMake configuration file

To configure and check all the requisite dependencies for our project, we are going to use CMake, but it is not the only way that this can be done; we can configure our project in any other tool or IDE, such as Makefiles or Visual Studio, but CMake is a more portable way to configure multiplatform C++ projects.

CMake uses configuration files called CMakeLists.txt, where the compilation and dependencies process is defined. For a basic project based on an executable built from a single source code file, a CMakeLists.txt file comprising three lines is all that is required. The file looks as follows:

cmake_minimum_required (VERSION 3.0) 
project (CMakeTest) 
add_executable(${PROJECT_NAME} main.cpp) 

The first line ...