You should be able to find out by looking on RPMfind.net or one of its mirrors.

> Could someone who is using Red Hat 8.0 check and tell
> me what versions of libXm.so and libguile.so are
> included by default?
> 
> I'm interested in installing an application that
> requires libguile.so.14 and libXm.so.3, and I'd rather
> not mess around having to upgrade the system with newer
> libraries than what Red Hat supplies.
> 
> Thank you.