Fix compilation error

CMakeLists.txt

@@ -34,6 +34,7 @@ add_executable       (papillon src/papillon.cpp)
 add_executable       (control src/control.cpp)
 add_dependencies( papillon ${PROJECT_NAME}_generate_messages_cpp )
 target_link_libraries(papillon ${catkin_LIBRARIES})
+target_link_libraries(control ${catkin_LIBRARIES})
 set_property         (TARGET papillon APPEND PROPERTY INCLUDE_DIRECTORIES ${OpenCV_INCLUDE_DIRS})
 set_property         (TARGET papillon APPEND PROPERTY INCLUDE_DIRECTORIES ${catkin_INCLUDE_DIRS})
 set_property         (TARGET papillon APPEND PROPERTY LINK_LIBRARIES      ${OpenCV_LIBRARIES})

src/control.cpp

@@ -21,6 +21,7 @@ class Drone_control {
 		Drone_control() : n("~") {
 			pub_cmd = n.advertise<geometry_msgs::Twist>("/bebop/cmd_vel", 1);
 			sub_box = n.subscribe<papillon::BoundingBox>("/papillon/bbox", 1, &Drone_control::on_msg, this);
+			ROS_INFO("Built !");
 		}