ceres-solver-devel should depend on suitesparse-devel
because its cmake configuration file depends on the suitesparse headers,

if you use "find_package (Ceres CONFIG)" without suitesparse-devel being installed you get the following error:


""
-- Failed to find CXSparse - Could not find CXSparse include directory, set CXSparse_INCLUDE_DIR to directory containing cs.h
CMake Warning at CMakeLists.txt:361 (find_package):                                                                                                                                                                                         
  Found package configuration file:                                                                                                                                                                                                         

    /usr/lib64/cmake/Ceres/CeresConfig.cmake                                                                                                                                                                                                

  but it set Ceres_FOUND to FALSE so package "Ceres" is considered to be NOT                                                                                                                                                                
  FOUND.  Reason given by package:                                                                                                                                                                                                          

  Ceres could not be found because dependency CXSparse could not be found.
"""