rosmake parallel jobs, int option, if defined overrides ROS_PARALLEL_JOBS, if no arg or env set ROS_PARALLEL_JOBS to num cpus detected #2189
rosmake parallel jobs, int option, if defined overrides ROS_PARALLEL_JOBS, if no arg or env set ROS_PARALLEL_JOBS to num cpus detected #2189

ros/ros,ros/ros,ros/ros