Worked on the chapel-lang/chapel repository to address GCC 15 compatibility and enhance code quality. Focused on compiler warning cleanup by removing a suppression flag and introducing explicit type casts in the AM handler table initialization within comm-gasnet-ex.c. This targeted fix ensured that GCC 15 warnings are properly emitted throughout the codebase, improving maintainability and reducing the risk of future regressions. Utilized C and Makefile expertise to maintain build stability across updated toolchains. The work emphasized careful risk reduction and code consistency, supporting smoother future upgrades and reinforcing best practices in build systems and compiler warning management.