option('git_werror', type: 'feature', value: 'auto', description: 'use -Werror if building from GIT') option('rpath', type: 'feature', value: 'auto', description: 'whether to include rpath information in installed binaries and libraries') option('docs', type: 'feature', value: 'auto', description: 'whether to generate documentation') option('tests', type: 'feature', value: 'auto', description: 'whether to build tests') option('introspection', type: 'feature', value: 'auto', yield: true, description: 'Enable GObject Introspection') option('vapi', type: 'feature', value: 'auto', yield: true, description: 'Enable Vala bindings')