sys.props.get("plugin.version") match {
case Some(x) => addSbtPlugin("com.eed3si9n" % "sbt-projectmatrix" % x)
case _ => sys.error("""|The system property 'plugin.version' is not defined.
|Specify this property using the scriptedLaunchOpts -D.""".stripMargin)
}
addSbtPlugin("org.scala-native" % "sbt-scala-native" % "0.4.0-M2")
