At this time Fedora Legacy doesn't have an interest in introducing
the %{?dist} tag to packages that didn't already have it. This
means no RHL
packages. In fact, RHL is hopefully going to be phased out of
Legacy support
in about 6 months.
Our current build system does not support dist tags, however when
we move to
the Fedora infrastructure instead of our own we will gain that
ability, and
we will use the same dist tag that was appropriate for said
releases during
the time they were active. FC3 .fc3, FC4 .fc4, etc...