[project @ 2003-09-08 13:20:29 by simonmar]

Add Alex as a pre-supposed tool, and mention it in a few places.

diff --git a/docs/building/building.sgml b/docs/building/building.sgml
index f0adddd..9a0fa52 100644 (file)
--- a/docs/building/building.sgml
+++ b/docs/building/building.sgml
@@ -434,8 +434,8 @@ setsockopt IPTOS_THROUGHPUT: Invalid argument
           <xref linkend="projects">).</para>
 
          <para>Remember that if you do not have
-          <literal>happy</literal> installed, you need to check it out
-          as well.</para>
+          <literal>happy</literal> and/or <literal>Alex</literal>
+          installed, you need to check them out as well.</para>
        </listitem>
       </itemizedlist>
     </sect2>
@@ -1262,6 +1262,19 @@ $ cvs checkout nofib/spectral
       </varlistentry>
 
       <varlistentry>
+       <term>Alex</term>
+       <indexterm><primary>Alex</primary></indexterm>
+       <listitem>
+         <para>Alex is a lexical-analyser generator for Haskell,
+         which GHC uses to generate its lexer.  Like Happy, Alex is
+         written in Haskell and is a project in the CVS repository.
+         Alex distributions are available from <ulink
+         url="http://www.haskell.org/alex/">Alex's Web
+         Page</ulink>.</para>
+       </listitem>
+      </varlistentry>
+
+      <varlistentry>
        <term>Autoconf</term>
        <indexterm><primary>pre-supposed: Autoconf</primary></indexterm>
        <indexterm><primary>Autoconf, pre-supposed</primary></indexterm>
@@ -2238,7 +2251,8 @@ Foo.o : Baz.hi
       build tree.</para>
 
       <para>Happy can similarly be run from the build tree, using
-      <filename>happy/src/happy-inplace</filename>.</para>
+      <filename>happy/src/happy-inplace</filename>, and similarly for
+      Alex and Haddock.</para>
     </sect2>
 
     <sect2>
@@ -4592,6 +4606,12 @@ Happy is a parser generator used to compile the Haskell grammar.  Add it in your
 </para>
 </listitem>
 
+         <listitem>
+           <para>Install Alex.  This can be done by building from the
+           source distribution in the usual way.  Sources are
+           available from <ulink
+           url="http://www.haskell.org/alex">http://www.haskell.org/alex</ulink>.</para>
+         </listitem>
 
 <listitem>
 <para>GHC uses the <emphasis>mingw</emphasis> C compiler to