The discussion focuses on tips for using a Windows-based free C compiler, specifically Code::Blocks, which is recommended over Dev-C++ due to its active development and user-friendly interface. Users can compile single files or multiple files by creating projects and accessing the appropriate menu options. The compiler supports various compilers, including GCC, and is available for both Windows and Linux. For those still required to use Dev-C++, a dedicated forum is available for assistance. A user encountered issues with compiling multiple files, where only the current file was being compiled, leading to undefined structure errors. They sought guidance on how to compile all files together, referencing a Unix command example for clarity. Additionally, there was a query about whether a Makefile in the project would interfere with the compilation process.