The following classes of macros are defined:
.display
&` _HAVE_ `& build-time defines
-&` _DRVR_AUTH_ `& authehticator drivers
+&` _DRVR_AUTH_ `& authenticator drivers
&` _DRVR_RTR_ `& router drivers
&` _DRVR_TPT_ `& transport drivers
&` _OPT_ `& configuration option support