Use Eigen3::Eigen target

Since version 3.3 Eigen provides Eigen3Config.cmake with the imported
target Eigen3::Eigen. [1]
Use this imported target as descibed in Eigen-Wiki [2]

In the CeresConfig file improve relocatability by removing absolute
paths to the compiled dependencies. Instead find the used Eigen3::Eigen.
Furthermore use the find_dependency() [4] CMake function instead of the
find_package() call in CeresConfig.

This commit relies on all targets to be explicitly linked private or
public as done in the the change [3]

[1] https://bitbucket.org/eigen/eigen/pull-requests/257/cmake-imported-target-take-2/diff
[2] https://eigen.tuxfamily.org/dox/TopicCMakeGuide.html
[3] https://ceres-solver-review.googlesource.com/c/ceres-solver/+/16220
[4] https://cmake.org/cmake/help/latest/module/CMakeFindDependencyMacro.html

Change-Id: I44f44a089083f7169bcf430b59775242e4eb72d1
4 files changed
tree: 2216c6e41f3f8804c998455f573eba1223dc2d63
  1. bazel/
  2. cmake/
  3. config/
  4. data/
  5. docs/
  6. examples/
  7. include/
  8. internal/
  9. scripts/
  10. travis/
  11. .clang-format
  12. .gitignore
  13. .travis.yml
  14. BUILD
  15. CMakeLists.txt
  16. CONTRIBUTING.md
  17. LICENSE
  18. package.xml
  19. README.md
  20. WORKSPACE
README.md

Build Status

Ceres Solver

Ceres Solver is an open source C++ library for modeling and solving large, complicated optimization problems. It is a feature rich, mature and performant library which has been used in production at Google since 2010. Ceres Solver can solve two kinds of problems.

  1. Non-linear Least Squares problems with bounds constraints.
  2. General unconstrained optimization problems.

Please see ceres-solver.org for more information.