babeltrace is not currently available for EPEL 7. Would you mind branching and building it for EPEL 7? If not, please let me know and I can co-maintain the package (and the EPEL 7 branch)
Here's the patch to get the package to build for EPEL7: https://fedorapeople.org/cgit/ktdreyer/public_git/babeltrace.git/commit/?h=epel7&id=e5f05b9c42e41ce72cc439aa8a7e95d33737a5c2 This allows us to use the same .spec for EL7 and Rawhide.
babeltrace-1.2.4-3.el7 has been submitted as an update to Fedora EPEL 7. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2016-8c74b0b27f
babeltrace-1.2.4-3.el7 has been pushed to the Fedora EPEL 7 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-EPEL-2016-8c74b0b27f
babeltrace-1.2.4-3.el7 has been pushed to the Fedora EPEL 7 stable repository. If problems still persist, please make note of it in this bug report.