During October 2025, Paul Simmons focused on improving runtime stability and correctness in the ROCm/llvm-project repository. He addressed a complex libstdc++ linkage and undefined symbol issue affecting the GCC 15.1 Fortran Runtime, particularly in Clang -O0 build configurations. By redefining the _GLIBCXX_THROW_OR_ABORT macro, Paul eliminated unwanted dependencies on libstdc++ and resolved symbol conflicts between mixed C++ and Fortran toolchains. His work, using C++, CMake, and expertise in build systems and compiler flags, resulted in more reliable and reproducible binaries. The depth of his solution demonstrated a strong understanding of runtime library interactions and build configuration challenges.