From c1adeee72749fed9704f26013275a9af9e327b82 Mon Sep 17 00:00:00 2001
From: Jed Wesley-Smith <jed.wesleysmith@gmail.com>
Date: Wed, 18 Feb 2015 14:31:24 +1100
Subject: [PATCH] Update README.md

added cross version support
---
 README.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/README.md b/README.md
index 66d638a..55a6799 100644
--- a/README.md
+++ b/README.md
@@ -63,6 +63,9 @@ addCompilerPlugin("org.spire-math" % "kind-projector_2.10" % "0.5.2")
 
 // for scala 2.9.3
 //addCompilerPlugin("org.spire-math" % "kind-projector_2.9.3" % "0.5.2)
+
+// for cross building (won't support 2.9.3, you'd need a manual version mapping)
+addCompilerPlugin("org.spire-math" % "kind-projector"      % "0.5.2" cross CrossVersion.binary)
 ```
 
 That's it!