From 16f546834892cecd5b598ac7db2c86d60fabe233 Mon Sep 17 00:00:00 2001
From: "simonpj@microsoft.com" <unknown>
Date: Mon, 12 Nov 2007 15:41:09 +0000
Subject: [PATCH] Comment re Trac #1220

---
 compiler/typecheck/TcDeriv.lhs |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/compiler/typecheck/TcDeriv.lhs b/compiler/typecheck/TcDeriv.lhs
index d414c6f..774bbe9 100644
--- a/compiler/typecheck/TcDeriv.lhs
+++ b/compiler/typecheck/TcDeriv.lhs
@@ -222,6 +222,9 @@ And then translate it to:
 	
 Note [Newtype deriving superclasses]
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+(See also Trac #1220 for an interesting exchange on newtype
+deriving and superclasses.)
+
 The 'tys' here come from the partial application in the deriving
 clause. The last arg is the new instance type.
 
-- 
1.7.10.4