Two binaries into two subpackages, but with same name

Hi,

Is there some trick to make it possible to have a single spec file
take two binaries, say /sbin/app.static and /sbin/app.dynamic, and
then have these installed into two separate sub-packages as just
/sbin/app (obviously both sub-packages can't be installed together)?
Or is the only solution two separate spec files and a rebuild?

Thanks,

-i