option('manpage', type: 'boolean', value: true, description: 'Build man pages')
option('crypto', type: 'combo', choices: ['libgcrypt', 'gnutls', 'disabled'], value: 'libgcrypt', description: 'Backend library to implement transport encryption')
option('debugging', type: 'boolean', value: false, description: 'Turn debugging on/off')
option('vapi', type: 'boolean', value: true, description: 'Create VAPI file.')
option('gtk_doc', type: 'boolean', value: true, description: 'Build reference documentation using gi-docgen')
option('introspection', type: 'boolean', value: true, description: 'Create GIR file.')
option('bashcompdir', type: 'string', value: '', description: 'Override default location for bash completion files')
option('bash_completion', type: 'feature', value: 'auto', description: 'Install bash completion files')
option('tpm2', type: 'boolean', value: false, description: 'With TPM2 Software Stack')
option('pam', type: 'boolean', value: false, description: 'Build PAM module')