Worked on the rust-lang/libc repository to address a cross-platform compatibility issue by aligning the newlib stat struct with official header definitions. Using Rust and system programming expertise, implemented a targeted bug fix that improves correctness and reliability for downstream users across multiple platforms. The solution referenced upstream header sources directly, ensuring traceability and maintainability for future development. Documented a clear approach for handling potential per-target struct definitions, which minimizes regression risk as new platforms are added. This work demonstrates a careful, standards-driven approach to cross-platform development, focusing on long-term maintainability and correctness within the Rust ecosystem without introducing new features.