From 78df5ef4293937504ff9d237fd3ac41c4528d997 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Eric=20Meadows-J=C3=B6nsson?=
 <eric.meadows.jonsson@gmail.com>
Date: Fri, 25 Sep 2015 17:02:56 +0200
Subject: [PATCH] Only use MapSet on Elixir 1.2+

---
 .travis.yml         | 1 +
 lib/hex/resolver.ex | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 38c7c011d..68c7c4e6e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,6 +17,7 @@ script:
 env:
   matrix:
     - ELIXIRVERSION=v1.0.5
+    - ELIXIRVERSION=v1.1.0
     - ELIXIRVERSION=master
 notifications:
   recipients:
diff --git a/lib/hex/resolver.ex b/lib/hex/resolver.ex
index b776552b8..fda3fc55f 100644
--- a/lib/hex/resolver.ex
+++ b/lib/hex/resolver.ex
@@ -280,7 +280,7 @@ defmodule Hex.Resolver do
   defp requirement(nil), do: ">= 0.0.0"
   defp requirement(req), do: req.source
 
-  if Version.compare("1.1.0", System.version) == :gt do
+  if Version.compare("1.2.0", System.version) == :gt do
     defp new_set(enum), do: Enum.into(enum, HashSet.new)
   else
     defp new_set(enum), do: Enum.into(enum, MapSet.new)