https://bugzilla.redhat.com/show_bug.cgi?id=1282063
--- Comment #16 from Francesco Frassinelli (frafra) fraph24@gmail.com --- Ahahah ok sorry :D I thought it could be some strange operator :D
rpmbuild fails: /usr/bin/ld: cannot find -lxxhash I compiled libxxhash first (moving the code upward and adding "make xxhash" in the subprocess) and now it seems to build correctly.
https://copr.fedoraproject.org/coprs/frafra/duperemove/build/154105/