.BR doSCO ,
.BR doAtari ,
.BR doBlitDamage ,
+.BR doSparcLinux ,
and
-.BR doSparcLinux .
+.BR doSSolaris .
Each of these is a Boolean resource, they all default to true, except for
doSparcLinux and doAtari, which are turned off by default, because they're
really not all that interesting looking unless you're a fan of those systems.