Plotutils are the Raspberry Pi repository, as well as the Debian repository, so they must compile. I've already copied over the binary and the required libraries to the TinyCore image that I'm working on, it works. I think there were four libraries missing plus graph, the utility that I need. I'm new enough to Tiny Core that I don't know if should package up plotutils or just use filetool to make sure the required files are in place.