Description given here
tried to emerge lucene and got a build failed error see attachment 1 [details]
Created attachment 341734 [details]
emerge lucene in terminal
Created attachment 341736 [details]
output of `emerge --info '=dev-java/lucene-3.5.0'
Created attachment 341738 [details]
output of `emerge -pqv '=dev-java/lucene-3.5.0'`
Created attachment 341742 [details]
The complete build log
Created attachment 341744 [details]
The ebuild environment file
I had the same problem. The manifest file was wrong because of a locale problem.
/etc/env.d/02locale was referring to a missing locale. I had it in /etc/locale.gen and I run locale-gen.
Then emerge lucene was working