ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange |
1 | initial version |
Modifying the roboearth package is definitely legal, because it is an open source project.
@Mac explains that you will need to download the source and build it. Test that version first, before making your changes (to make sure the build was successful). Then modify the header, rebuild and test.
You may want to contribute your changes back to the roboearth developers. If they apply them to their source repository, then future versions will work for you without additional effort. Contact the developers directly so they can tell you the preferred way to request enhancements and submit patches.