specfile questions

[Quentin Spencer]

I'm preparing a package for octave-forge, which I asked about a couple 
of days ago, and I have a question about spec files. Octave-forge is 
closely tied to the version of octave that is installed on the system, 
so the Requires: part of the spec file should list a specific version. 
It would be nice to have a single SRPM that could build on multiple 
versions of Fedora, which may have different versions of octave 
installed. Is there a way to do "Requires: octave = <whatever is 
installed right now>"?

Quentin