That's the latest RPM I could find too. It's old and I got the same errors you did. Here's what I did to create a working (and current) version:
Download the latest DEB file that matches your architecture here: http://apt.flirc.tv/arch. For example, for 64 bit at this time that's http://apt.flirc.tv/arch/x64/binary/flirc_1.3.2-1_amd64.deb.
Convert it to an RPM with alien: sudo alien -r flirc_1.3.2-1_amd64.deb
Remove the unnecessary and conflicting entries: rpmrebuild -p --change-spec-files="grep -i flirc" flirc-1.3.2-2.x86_64.rpm
That command will create a new rpm that should install cleanly and seems to work fine for me. I'm on Fedora 21 64-bit.
