From 77898b67bc123fe30c57d5139b19a02d1d2c3372 Mon Sep 17 00:00:00 2001
From: Dale Wijnand <dale.wijnand@gmail.com>
Date: Wed, 4 Mar 2015 07:45:00 +0000
Subject: [PATCH] Exempt scala-actors-migration from version checks.

Fixes #1818.
---
 ivy/src/main/scala/sbt/IvyScala.scala | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/ivy/src/main/scala/sbt/IvyScala.scala b/ivy/src/main/scala/sbt/IvyScala.scala
index b4299906f..061eddeb7 100644
--- a/ivy/src/main/scala/sbt/IvyScala.scala
+++ b/ivy/src/main/scala/sbt/IvyScala.scala
@@ -66,7 +66,11 @@ private object IvyScala {
       {
         val id = dep.getDependencyRevisionId
         val depBinaryVersion = CrossVersion.binaryScalaVersion(id.getRevision)
-        val mismatched = id.getOrganisation == Organization && depBinaryVersion != scalaBinaryVersion && dep.getModuleConfigurations.exists(configSet)
+        def isScalaLangOrg = id.getOrganisation == Organization
+        def isNotScalaActorsMigration = !(id.getName startsWith "scala-actors-migration") // Exception to the rule: sbt/sbt#1818
+        def hasBinVerMismatch = depBinaryVersion != scalaBinaryVersion
+        def matchesOneOfTheConfigs = dep.getModuleConfigurations.exists(configSet)
+        val mismatched = isScalaLangOrg && isNotScalaActorsMigration && hasBinVerMismatch && matchesOneOfTheConfigs
         if (mismatched)
           Some("Binary version (" + depBinaryVersion + ") for dependency " + id +
             "\n\tin " + module.getModuleRevisionId +
@@ -111,4 +115,4 @@ private object IvyScala {
       configurationNames.foreach(rule.addConfiguration)
       rule
     }
-}
\ No newline at end of file
+}