enable_language(CXX)

# Ensure CMake warns even if toolchain does not really have these flags.
set(CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN "-fvisibility-inlines-hidden")
set(CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY "-fvisibility=")

set(CMAKE_VISIBILITY_INLINES_HIDDEN 1)
set(CMAKE_CXX_VISIBILITY_PRESET hidden)

add_executable(myexe lib.cpp)