Add macos support
Add macos support


Former-commit-id: 3e9ff35746d24cf4bd9479cc3ace160c292b3ae5 [formerly 3caa647c3825287c4e9b913f694886929695cc2d]
Former-commit-id: 5341f2a7a3104c8e9d6817f609ce73abbbcfc852
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine