Worked on the google/oboe repository to introduce a build-time configurability feature that allows developers to disable the automatic definition of OpenSLES constants. This was achieved by adding a new CMake option, OBOE_DO_NOT_DEFINE_OPENSL_ES_CONSTANTS, to the main CMakeLists.txt file, which conditionally defines a preprocessor macro based on user selection. The approach focused on build system configuration using CMake, enabling safer and more flexible builds for projects with varied OpenSL ES requirements. This change addressed potential conflicts in downstream integrations and provided a straightforward mechanism for platform-specific customization without altering core source files or affecting existing workflows.