Add missing includes for config.h covariance.h was using SUITE_SPARSE even when SUITESPARSE was disabled because it did not have config.h included in it so it did not see that CERES_NO_SUITESPARSE was defined. Add more config.h includes to files that are using these configuration macros. Change-Id: I6b1d2c2bd9e559de40a6332cd6be85ad4da3377b
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.
Please see ceres-solver.org for more information.