Build Configuration Enhancement

[kissisnecessary]

While exploring the project's configuration setup, I noticed a potential area for improvement in the CMakeLists.txt and related build scripts. Specifically, the handling of LLVM and Clang dependencies could be enhanced to ensure a more flexible and robust build process. This is crucial for accommodating various development environments and LLVM versions.

Suggested Improvements ----

1. LLVM and Clang Version Compatibility: The project currently seems to target a specific version of LLVM/Clang. It would be beneficial to include checks or compatibility layers to support a range of versions, enhancing the project's usability across different environments.
2. Finding LLVM/Clang Packages: The script could leverage find_package more effectively to locate LLVM and Clang installations. This approach allows for more flexibility, especially when LLVM/Clang is installed in non-standard locations.
3. Documentation on Dependencies: While the README.md provides some information on dependencies, a more detailed guide on installing and configuring LLVM/Clang for this project would be helpful. This guide could cover different operating systems and common pitfalls.
4. Automated Dependency Checks: Incorporating automated checks for required dependencies within the CMake configuration can prevent common build errors. For example, checking if the correct version of LLVM/Clang is installed before proceeding with the build process.
5. Enhanced Support for LLVM's llvm-config: Utilizing llvm-config to set up compiler and linker flags can simplify the build process. This tool provides a reliable method to configure projects based on the installed LLVM/Clang version.
6. Build Directory Configuration: The script sets a custom build directory within the source tree. Adopting a more conventional out-of-source build directory approach can help avoid potential issues with source tree pollution and make cleanup easier.

Implementing these suggestions could significantly improve the project's build system, making it more accessible and easier to use across various development setups. I look forward to seeing these enhancements in future updates.

Thank you for your hard work on this project! Great work!