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Description of problem:
Requires: bind = %{epoch}:%{name}-%{version}-%{release}

%{name}- shouldn't be there, since the package name is already given
by bind = .  What you want is E:V-R, not E:N-V-R.

Version-Release number of selected component (if applicable):
bind-9.2.4rc7-8

How reproducible:
Always

Steps to Reproduce:
1.Try to install today's bind-devel.

Actual Results:  Unsatisfyable dependency.

Expected Results:  Well, given the mistaken Requires:, the error is
actually to be expected :-)

Additional info: