help_vars.Add(EnumVariable('TARGET_ARCH', 'Target architecture', default_arch, os_arch_map[target_os]))
help_vars.Add(EnumVariable('SECURED', 'Build with DTLS', '0', allowed_values=('0', '1')))
+help_vars.Add(EnumVariable('MULTIPLE_OWNER', 'Enable multiple owner', '0', allowed_values=('0', '1')))
help_vars.Add(EnumVariable('TEST', 'Run unit tests', '0', allowed_values=('0', '1')))
help_vars.Add(BoolVariable('LOGGING', 'Enable stack logging', logging_default))
help_vars.Add(BoolVariable('UPLOAD', 'Upload binary ? (For Arduino)', require_upload))