From 2e6e061fe1a1b00dbaf1851340587d1a2d782039 Mon Sep 17 00:00:00 2001
From: Alexandre Archambault <alexandre.archambault@gmail.com>
Date: Wed, 30 Dec 2015 01:34:47 +0100
Subject: [PATCH] Better minimization of dependencies with fallback configs

---
 .../shared/src/main/scala/coursier/core/Orders.scala | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/core/shared/src/main/scala/coursier/core/Orders.scala b/core/shared/src/main/scala/coursier/core/Orders.scala
index d2bd8cdb7..15af6bfe2 100644
--- a/core/shared/src/main/scala/coursier/core/Orders.scala
+++ b/core/shared/src/main/scala/coursier/core/Orders.scala
@@ -122,8 +122,16 @@ object Orders {
 
   private def fallbackConfigIfNecessary(dep: Dependency, configs: Set[String]): Dependency =
     Parse.withFallbackConfig(dep.configuration) match {
-      case Some((main, fallback)) if !configs(main) && configs(fallback) =>
-        dep.copy(configuration = fallback)
+      case Some((main, fallback)) =>
+        val config0 =
+          if (configs(main))
+            main
+          else if (configs(fallback))
+            fallback
+          else
+            dep.configuration
+
+        dep.copy(configuration = config0)
       case _ =>
         dep
     }