comment-out this block, it uses an installed version of XML::SAX to write out
an ini file. this is provided by ${FILESDIR}/ParserDetails.ini instead.

Index: Makefile.PL
--- Makefile.PL.orig
+++ Makefile.PL
@@ -31,6 +31,7 @@ sub MY::install {
 
     my $write_ini_ok = 0;
 
+=pod
     eval { require XML::SAX };
     if ($@) {
         $write_ini_ok = 1;
@@ -48,6 +49,7 @@ sub MY::install {
         }
     }
     
+=cut
     if ($write_ini_ok) {
         $script =~ s/install :: (.*)$/install :: $1 install_sax_pureperl/m;
         $script .= <<"INSTALL";