add_project_arguments('-fvisibility=hidden', language: 'c')
add_project_arguments('-fvisibility=hidden', language: 'cpp')
if have_objc
add_project_arguments('-fvisibility=hidden', language: 'objc')
endif
add_project_arguments('-fvisibility=hidden', language: 'c')
add_project_arguments('-fvisibility=hidden', language: 'cpp')
if have_objc
add_project_arguments('-fvisibility=hidden', language: 'objc')
endif