The last version of gato available on Portage is 0.98i. The last version available is 0.98m. I tested renaming the ebuild and it worked. I also suggest a cosmetic change in the ebuild, I'm attaching a patch.
Created attachment 46093 [details, diff] patch to current 0.98i ebuild
Created attachment 51170 [details] gato-0.98n.ebuild Version bump to 0.98n. Tested both sample algorithms on the sample graph and it works. Please obsolete the other attachment. Thank you.
I've never heard of gato, looks like brandy put my name on the metadata instead of herself by mistake. The cvs comment was "adding brandy to metadata" ;) Reassigning to app-sci and removing my name from metadata.xml
I just bumped gato to the most recent version gato-0.98p.