[project @ 2003-02-17 11:26:43 by simonmar]

GHC is pre-supposed in order to build GHC.  We weren't making this
nearly as explicit as it should have been.

docs/building/building.sgml

@@ -1141,6 +1141,23 @@ $ cvs checkout nofib/spectral
 
     <variablelist>
 
+      <varlistentry>
+	<term>GHC</term>
+	<indexterm><primary>pre-supposed: GHC</primary></indexterm>
+	<indexterm><primary>GHC, pre-supposed</primary></indexterm>
+	<listitem>
+	  <para>GHC is required to build many of the tools, including
+	  GHC itself.  If you need to port GHC to your platform
+	  because there isn't a binary distribution of GHC available,
+	  then see <xref linkend="sec-porting-ghc">.</para>
+
+	  <para>Which version of GHC you need will depend on the
+	  packages you intend to build.  GHC itself will normally
+	  build using one of several older versions of itself - check
+	  the announcement or release notes for details.</para>
+	</listitem>
+      </varlistentry>
+
       <varlistentry>
 	<term>Perl</term>
 	<indexterm><primary>pre-supposed: Perl</primary></indexterm>