Must be root to create RPM???

Howdy -

I am trying to create a DCC RPM for Fedora Core 3.  I notice that if I
try to create the package as a user it fails.  It seems that the
installer changes ownership of some of the files to root:bin or bin:bin.

Anyone have any pointers as to how to build an RPM as non-root?  It is
considered a Bad Thing(TM) to build packages as root.

Thanks
Thomas