From: simonpj@microsoft.com <unknown>
Date: Thu, 31 Aug 2006 13:55:11 +0000 (+0000)
Subject: Add a pointer to the fundeps paper
X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=commitdiff_plain;h=5e418599f051ecb88d9d2dbeea96563cf438b065

Add a pointer to the fundeps paper
---

diff --git a/docs/users_guide/glasgow_exts.xml b/docs/users_guide/glasgow_exts.xml
index 96c2ce9..fd6e322 100644
--- a/docs/users_guide/glasgow_exts.xml
+++ b/docs/users_guide/glasgow_exts.xml
@@ -2061,6 +2061,11 @@ something more specific does not:
     op = ... -- Default
 </programlisting>
 </para>
+<para>You can find lots of background material about the reason for these
+restrictions in the paper <ulink
+url="http://research.microsoft.com/%7Esimonpj/papers/fd%2Dchr/">
+Understanding functional dependencies via Constraint Handling Rules</ulink>.
+</para>
 </sect3>
 
 <sect3 id="undecidable-instances">