option( 'MultipleHeaders', type: 'boolean', value: true, description: 'Use non-amalgamated version of the library', ) option( 'GlobalUDLs', type: 'boolean', value: true, description: 'Place user-defined string literals in the global namespace', ) option( 'ImplicitConversions', type: 'boolean', value: true, description: 'Enable implicit conversions', )