Untested 'git am'able fix attached.
Created attachment 1133366 [details] Build with $RPM_OPT_FLAGS on %{ix86}
Applied in rawhide.
xdffileio-0.3-3.fc24 has been submitted as an update to Fedora 24. https://bodhi.fedoraproject.org/updates/FEDORA-2016-e949ad50d2
xdffileio-0.3-3.fc24 has been pushed to the Fedora 24 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-2016-e949ad50d2
xdffileio-0.3-3.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.