BoostBuild is a part of the Boost project, which is a set of libraries aimed at enhancing and facilitating the software development process in C++. BoostBuild itself is a system designed to make the building and compiling of C++ programs simpler and more efficient. Specifically, it focuses on automatically managing and configuring the build process based on minimal input from developers, handling dependencies, and ensuring that only necessary recompilations are performed.BoostBuild supports multiple platforms and compilers, ensuring that C++ projects can be portable across different systems. It is known for its robustness and flexibility, allowing for complex build configurations with ease.