option('BUILD_TESTS', 			type : 'feature', value : 'auto',	description : 'Whether to build tests (default: auto - only if not a subproject)')
option('BUILD_EXAMPLES',		type : 'feature', value : 'auto',	description : 'Whether to build examples (default: auto - only if not a subproject)')
option('GENERATE_CMAKE_CONFIG',	type : 'feature', value : 'auto',	description : 'Whether to generate a cmake package config file (default: auto - only if not a subproject)')