cmake HAVE_OPENCV_CONTRIB examples

luigifreda/slamplay CMakeLists.txt :195 

check_include_file_cxx(opencv2/xfeatures2d.hpp HAVE_OPENCV_CONTRIB)

luigifreda/slamplay CMakeLists.txt :198 

add_definitions(-DHAVE_OPENCV_CONTRIB)

lixiny/Handeye-Calibration-ROS src/handeye_calib_marker/CMakeLists.txt :56 

check_include_file_cxx(opencv2/face/facerec.hpp HAVE_OPENCV_CONTRIB)

lixiny/Handeye-Calibration-ROS src/handeye_calib_marker/CMakeLists.txt :58 

add_definitions(-DHAVE_OPENCV_CONTRIB)