Worked on stabilizing the test infrastructure for the KhronosGroup/Vulkan-ValidationLayers repository, focusing on build reliability under modern compilers. Addressed a critical issue by adding missing cmath includes to the test framework, which resolved build failures encountered with GCC 11.0. This fix ensured that the test suite compiled successfully across different environments, preserving test coverage and maintaining continuous integration feedback loops. The work demonstrated careful attention to header management, cross-compiler compatibility, and code hygiene in C++ projects. Emphasized robust build systems and testing practices, delivering targeted improvements without altering public APIs or introducing new features during the development period.