This no longer has a configuration option and is not listed in the upstream dependencies. I believe it's no longer required. This should also be relevant to the 13.0 ebuild. Reproducible: Always
Created attachment 376392 [details, diff] Proposed patch
should be all set now in the tree; thanks for the report! Commit message: Drop USE=neon now that upstream has dropped it http://sources.gentoo.org/media-tv/xbmc/xbmc-9999.ebuild?r1=1.152&r2=1.153