visibility_flag.cmake
9c102ac65486chloride

visibility_flag.cmake
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			# -fvisibility=hidden
			# ---------------------
			# change the default visibility of symbols

			# check if the compiler supports it
			check_cxx_compiler_flag( "-fvisibility=hidden" HAS_VISIBILITY_HIDDEN )
			# define a set of files to be compiled with the -fvisibility=hidden flag
			function( set_visibility_flag )
			if ( HAS_VISIBILITY_HIDDEN )
			set_property( SOURCE ${ARGN} APPEND PROPERTY
			COMPILE_FLAGS "-fvisibility=hidden -fvisibility-inlines-hidden" )
			endif()
			endfunction( set_visibility_flag )