cmake CSparse examples

luigifreda/slamplay CMakeLists.txt :131 

find_package(CSparse REQUIRED)

RainerKuemmerle/g2o CMakeLists.txt :140 

find_package(CSparse)

ucla-vision/xivo thirdparty/g2o/CMakeLists.txt :122 

find_package(CSparse)

PaoPaoRobot/ygz-slam CMakeLists.txt :55 

find_package( CSparse REQUIRED )