Improve documentation for LANGUAGE pragma (esp wrt cpp)

[ghc-hetmet.git] / docs / users_guide / flags.xml

diff --git a/docs/users_guide/flags.xml b/docs/users_guide/flags.xml
index 05794df..8356a28 100644 (file)
--- a/docs/users_guide/flags.xml
+++ b/docs/users_guide/flags.xml
@@ -607,7 +607,9 @@
     <sect2>
       <title>Language options</title>
 
-      <para><xref linkend="options-language"/></para>
+      <para>Language options can be enabled either by a command-line option 
+      <option>-Xblah</option>, or by a <literal>{-# LANGUAGE blah #-}</literal>
+      pragma in the file itself.  See <xref linkend="options-language"/></para>
 
       <informaltable>
        <tgroup cols="4" align="left" colsep="1" rowsep="1">
@@ -932,7 +934,7 @@
            </row>
            <row>
              <entry><option>-XTypeSynonymInstances</option></entry>
-             <entry>Enable <link linkend="type-synonym-instances">type synonyms</link>.</entry>
+             <entry>Enable <link linkend="flexible-instance-head">type synonyms in instance heads</link>.</entry>
              <entry>dynamic</entry>
              <entry><option>-XNoTypeSynonymInstances</option></entry>
            </row>