tree c58366cb636aa6e171ba5cad21ac5f404efafa35
parent 820cb7b14831aa03eca1e8186000cebfdf0a42f3
author Alex Stewart <alexs.mac@gmail.com> 1411139305 +0100
committer Alex Stewart <alexs.mac@gmail.com> 1411139305 +0100

Fix unused-function warning with Eigen < 3.2.2.

- CreateBlockJacobian() is only ever used when Eigen >= 3.2.2 is
  detected, but was previously defined whenever CERES_USE_EIGEN_SPARSE
  was defined with no check on the Eigen version.
- This resulted in an unused-function compile warning that became an
  error due to -Werror, preventing compilation when using Eigen < 3.2.2.

Change-Id: I24628ff329f14b087ece66bf2626bdc0de4ba224