libfreenect does not build against opencv 3.4.1. See https://github.com/OpenKinect/libfreenect/issues/553 and https://github.com/opencv/opencv/issues/10963 for more details. I am going to disable the opencv support and rebuild it for now, as several things depend on it and all those chains are broken by this. AFAICS, nothing in the distro actually uses the opencv integration.
PR submitted upstream to fix this issue: https://github.com/OpenKinect/libfreenect/pull/555 I'll backport the updates into the fedora package.
libfreenect-0.5.7-2.fc28 has been submitted as an update to Fedora 28. https://bodhi.fedoraproject.org/updates/FEDORA-2018-911c5d174b
libfreenect-0.5.7-2.fc27 has been submitted as an update to Fedora 27. https://bodhi.fedoraproject.org/updates/FEDORA-2018-e468115994
libfreenect-0.5.7-2.fc26 has been submitted as an update to Fedora 26. https://bodhi.fedoraproject.org/updates/FEDORA-2018-415107a05c
libfreenect-0.5.7-2.fc27 has been pushed to the Fedora 27 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-e468115994
libfreenect-0.5.7-2.fc26 has been pushed to the Fedora 26 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-2018-415107a05c
libfreenect-0.5.7-2.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-2018-911c5d174b
libfreenect-0.5.7-2.fc27 has been pushed to the Fedora 27 stable repository. If problems still persist, please make note of it in this bug report.
libfreenect-0.5.7-2.fc28 has been pushed to the Fedora 28 stable repository. If problems still persist, please make note of it in this bug report.