# A.scala needs B.scala, it won't be in source list
> ++2.11.4
-> compile

# A.scala needs B.scala, it would be in source list
> ++2.10.4
> compile

# A.scala needs B.scala, it would be in source list
> ++2.9.3
> compile

# Injecting the wrong B.scala in source list
$ copy-file src/main/scala-2.10/B.scala src/main/scala-2.9.3/B.scala
> ++2.9.3
-> compile
