ceres-solver-1.12.0-2.el7 is failing on ppc64/ppc64le arches with a segfault on covariance_test. I suspected eigen3 to be the cause of the problem. eigen3 current version in epel7 is eigen3-3.2.5-2.el7 eigen3 have been updated on fedora to eigen3-3.3.4-1.fc26. When I build ceres-solver for epel7 with this last eigen3 version, ceres-solver builds successfully. Please, could you consider to update eigen3 version for epel7. koji build of eigen3-3.3.4-1.el7 is succesfull, see: https://koji.fedoraproject.org/koji/taskinfo?taskID=20075706
*** Bug 1289737 has been marked as a duplicate of this bug. ***
eigen3-3.3.4-6.el7 ceres-solver-1.12.0-2.el7 has been submitted as an update to Fedora EPEL 7. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2018-356e28b1f2
ceres-solver-1.12.0-2.el7, eigen3-3.3.4-6.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-2018-356e28b1f2
ceres-solver-1.12.0-2.el7, eigen3-3.3.4-6.el7 has been pushed to the Fedora EPEL 7 stable repository. If problems still persist, please make note of it in this bug report.