crazyflie_cpp | C++ Library to communicate with Bitcraze Crazyflie

I'm trying to modify an already existing package of ROS, adding and removing some stuff in the crazyflie_driver folder. I'm compiling with catkin_make and I have ROS Kinetic 16.04. The part that I'm actually modifying of the crazyflie_server C++ script is this: private: struct logImu { float acc_x; float acc_y; float acc_z; float gyro_x; float gyro_y; float gyro_z; } attribute((packed));