The xfig package is missing a dependence on transfig. Trying to export figures to eps yields an error message about fig2dev not being found. Installing transfig fixes the problem.
Thank you for the bug-report. I've prepared an update to the new 3.2.7a release and added a fix for this.
xfig-3.2.7a-1.fc29 has been submitted as an update to Fedora 29. https://bodhi.fedoraproject.org/updates/FEDORA-2018-db3bd64475
xfig-3.2.7a-1.fc28 has been submitted as an update to Fedora 28. https://bodhi.fedoraproject.org/updates/FEDORA-2018-009f178c43
xfig-3.2.7a-1.fc28 has been pushed to the Fedora 28 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-009f178c43
xfig-3.2.7a-1.fc29 has been pushed to the Fedora 29 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-db3bd64475
xfig-3.2.7a-1.fc29 has been pushed to the Fedora 29 stable repository. If problems still persist, please make note of it in this bug report.
xfig-3.2.7a-1.fc28 has been pushed to the Fedora 28 stable repository. If problems still persist, please make note of it in this bug report.