GHC 5.x is required for bootstrapping GHC these days.
the parser specifications. If you don't want to alter the
parser then this saves you having to find and install
<command>happy</command>. You will still need a working
- version of GHC (preferably version 4.08+) on your machine in
+ version of GHC (version 5.x or later) on your machine in
order to compile (most of) the sources, however.</para>
</listitem>
</varlistentry>