Red Hat Bugzilla – Bug 1479023
Ceres 1.12.0 has CMake fatal error (fixed in 1.13)
Last modified: 2017-08-20 14:25:24 EDT
Description of problem:
After installing ceres-solver-devel, the CMake config script has a fatal error (duplicate else statement on line 89). This has been fixed in 1.13, but prevents any CMake-based project from using Ceres on 1.12.
Version-Release number of selected component (if applicable):
Fedora 26, ceres-solver-devel 1.12.0
Steps to Reproduce:
1. sudo dnf install ceres-solver-devel
2. Try to use find_package(Ceres) in another CMake project
-- Failed to find Ceres - Found Eigen dependency, but the version of Eigen found (3.3.4) does not exactly match the version of Eigen Ceres was compiled with (3.3.3). This can cause subtle bugs by triggering violations of the One Definition Rule. See the Wikipedia article http://en.wikipedia.org/wiki/One_Definition_Rule for more details
CMake Error at /usr/lib64/cmake/Ceres/CeresConfig.cmake:89 (else):
A duplicate ELSE command was found inside an IF block.
Call Stack (most recent call first):
This CMake bug has been fixed in 1.13.0, so upgrading the RPM to 1.13.0 should resolve this issue. The Eigen version mismatch warning is also concerning, so possibly the upgrade will fix that as well.
Thanks for the report. It looks like 1.13.0 has some backwards incompatible changes, so I'd prefer not to update it in a released fedora. I will port the cmake patch to 1.12.0 and rebuild so that the correct version of eigen3 is detected.
ceres-solver-1.12.0-6.fc26 has been submitted as an update to Fedora 26. https://bodhi.fedoraproject.org/updates/FEDORA-2017-d196b09c83
ceres-solver-1.12.0-6.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-2017-d196b09c83
ceres-solver-1.12.0-6.fc26 has been pushed to the Fedora 26 stable repository. If problems still persist, please make note of it in this bug report.