Can't start apache after installing RT 2.0.13

RT Users
1

Each time I try to start apache with

apachectl start

I get an error :

Variable "$m" is not imported at /usr/local/rt2/bin/webmux.pl line 94.
[Mon Apr 22 15:37:27 2002] [error] Global symbol "$m" requires

explicit package name at /usr/local/rt2/bin/webmux.pl line 94.
Compilation failed in require at (eval 1) line 1.

Syntax error on line 587 of /usr/local/apache/conf/httpd.conf:
Global symbol "$m" requires explicit package name at

/usr/local/rt2/bin/webmux.pl line 94.
Compilation failed in require at (eval 1) line 1.

/usr/local/apache/bin/apachectl start : httpd could not be started

Here is the part of my httpd.conf I changed :

Alias /rt2 "/usr/local/rt2/WebRT/html"
PerlRequire /Usr/local/rt2/bin/webmux.pl

<Location /rt2>
    SetHandler perl-script
    PerlHandler RT::Mason
</Location>

And here is the relevant part of my webmux.pl

use Apache::Session::File;

#...
sub SetContentType {
    my $type = shift;
    $RT::Mason::r->content_type($type);
}

sub CGIObject {
    $m->cgi_object();
}

}

The line with the $m is the line 94 and the only one with $m …

Whats wrong ?