What's the effect of CMakeLists.txt file?

The CMakeLists.txt file is used by the CMake build system to generate makefiles or project files for building a C++ project. This file contains instructions on how to build the project, including the source files, dependencies, compiler flags, linker flags, and any other build options.

The CMakeLists.txt file is essential for building complex C++ projects that have multiple directories, libraries, and executables. It provides a simple and consistent way to build the project across multiple platforms and IDEs. By using CMake, developers can write the build configuration once and generate makefiles or project files for different platforms and IDEs without having to maintain separate build scripts.

Overall, the CMakeLists.txt file is a powerful tool for managing the build process of a C++ project, making it easier to build, test, and deploy software across multiple platforms and environments.