help_vars.Add(EnumVariable('SECURED', 'Build with DTLS', '0', allowed_values=('0', '1')))
help_vars.Add(EnumVariable('ROUTING', 'Enable routing', 'EP', allowed_values=('GW', 'EP')))
help_vars.Add(BoolVariable('WITH_PROXY', 'CoAP-HTTP Proxy', False)) # set to 'no', 'false' or 0 for debug
help_vars.Add(EnumVariable('SECURED', 'Build with DTLS', '0', allowed_values=('0', '1')))
help_vars.Add(EnumVariable('ROUTING', 'Enable routing', 'EP', allowed_values=('GW', 'EP')))
help_vars.Add(BoolVariable('WITH_PROXY', 'CoAP-HTTP Proxy', False)) # set to 'no', 'false' or 0 for debug