The mythmusic-0.18.1 ebuild incorrectly inherits from mythtv-plugins. The correct inheritance would be of the "myth" eclass. This false inheritance causes a lot of errors while updating the portage cache. Patch to follow. Reproducible: Always Steps to Reproduce: 1. 2. 3.
Created attachment 59342 [details, diff] Patch to fix the mythmusic false inheritance
I just rebuilt my local portage cache without any problem. The ebuild itself uses functions from mythtv-plugins. I'm not sure why you are seeing these errors. Can you paste the exact error message you get?
Seems my RSYNC mirror updated in between the alteration of mythmusic to use mythtv-plugins and the introduction of the new eclass - resolving bug as invalid