Note that autoconf 2.52 is required.
CVS sources, it is <emphasis>not</emphasis> needed if you
just intend to build a standard source distribution.</para>
+ <para>Version 2.52 or later of autoconf is required.
+ NB. vesrion 2.13 will no longer work, as of GHC version
+ 6.1.</para>
+
<para>Autoconf builds the <command>configure</command>
script from <filename>configure.in</filename> and
<filename>aclocal.m4</filename>. If you modify either of