We have multiple installations of GNU and Intel compilers. The version of the libstdc++ that comes on the system does not have support for std::chrono::steady_clock. We are able to use -gxx-name to link to a new g++ version and it works correctly. However, this is not suitable option for our users. Aside from the PATH environment variable, is there some way we can set what g++ version to use for libstdc++?