Hello! The anthy is still a developmental stage, therefore, the new version of anthy is released every few days. So, I think that we may have a development version of anthy in Portage. Sory for my English. Thank you. Reproducible: Always Steps to Reproduce:
Created attachment 17443 [details] anthy-4507.ebuild
I added it as an unstable version of app-i18n/anthy (I didn't make separate package for it because as I looked inside it they look like normal CVS snapshot as other packages are). Also I added auxiliarly Canna dictionaries support, so please report back if you find any problem with the ebuild. Thanks for the report.