Upstream dropped its dependency on libgnomeprint* prior to 0.4.5, yet xournal.spec still BRs it. As libgnomeprint* have since been retired, please remove the BR from both rawhide and epel7.
Fixed in rawhide and epel7.
xournal-0.4.8-5.el7 has been submitted as an update to Fedora EPEL 7. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2015-03b222f090
xournal-0.4.8-5.el7 has been pushed to the Fedora EPEL 7 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with $ su -c 'yum --enablerepo=epel-testing update xournal' You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2015-03b222f090
xournal-0.4.8-5.el7 has been pushed to the Fedora EPEL 7 stable repository. If problems still persist, please make note of it in this bug report.