clamav rebuilding for FC1

  I need to rebuild myself package clamav-0.88-1.1.fc1.rf.i386.rpm. 
My system is Fedora Core 1 linux, with some libraries updated for my own 
application, like libcurl.so.3. Origginaly binary package from
repository for FC1 is linked with libcurl.so.2, so I download source
package clamav-0.88-1.rf.src.rpm, and build for my own system.
 All goes fine, but package which I get was named
clamav-0.88-1.rf.i386.rpm. When I install it, my daily "yum
check-update" reports, that in repository is "newest" version
clamav-0.88-1.1.fc1.rf.i386.rpm. 
 So, I try to look, like Dag builds these packages in repository. In his
log, build command was called with '--define "distflag 1.fc1"' option.
So do I. No effect. In specfile, distflag macro is ignored at all.
In fact I must edited specfile. 
 My question is: How one of you build package which is put to
repositories ? Is this builded from other specs, than in src.rpm ?

            regards 

-- 
       Seweryn Walentynowicz
       [email protected]