X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=docs%2Fusers_guide%2Fbugs.xml;h=4d79d24268e5e587434f157e41e8559d1ece1dd4;hb=41b9dfa595948df05e3f1370861ec9869ec852bb;hp=c0c4bdbd50aae3980e12339b207054e003886c42;hpb=eb01cea35de6994db497e002a32ea263ab290a60;p=ghc-hetmet.git

diff --git a/docs/users_guide/bugs.xml b/docs/users_guide/bugs.xml
index c0c4bdb..4d79d24 100644
--- a/docs/users_guide/bugs.xml
+++ b/docs/users_guide/bugs.xml
@@ -98,14 +98,28 @@ main = do args <- getArgs
 
       <para>GHC's typechecker makes all pattern bindings monomorphic
       by default; this behaviour can be disabled with
-      <option>-fno-mono-pat-binds</option>.  See <xref
+      <option>-XNoMonoPatBinds</option>.  See <xref
       linkend="options-language" />.</para>
     </sect3>
       
       <sect3 id="infelicities-Modules">
 	<title>Module system and interface files</title>
 	
-	<para>None known.</para>
+	<para>GHC requires the use of <literal>hs-boot</literal>
+	  files to cut the recursive loops among mutually recursive modules
+	  as described in <xref linkend="mutual-recursion"/>.  This more of an infelicity
+	    than a bug: the Haskell Report says 
+	  (<ulink url="http://haskell.org/onlinereport/modules.html#sect5.7">Section 5.7</ulink>) "Depending on the Haskell
+	implementation used, separate compilation of mutually
+	recursive modules may require that imported modules contain
+	additional information so that they may be referenced before
+	they are compiled. Explicit type signatures for all exported
+	values may be necessary to deal with mutual recursion. The
+	precise details of separate compilation are not defined by
+	this Report."
+
+	</para>
+
     </sect3>
 
     <sect3 id="infelicities-numbers">
@@ -344,7 +358,7 @@ checking for duplicates.  The reason for this is efficiency, pure and simple.
         the problem would impose an extra overhead on every
         compilation.  So the bug remains un-fixed.  There is more
         background in <ulink
-        url="http://research.microsoft.com/~simonpj/Papers/inlining">
+        url="http://research.microsoft.com/~simonpj/Papers/inlining/">
         Secrets of the GHC inliner</ulink>.</para>
       </listitem>