Line 69 is in the middle of GDBM_File.pm's AUTOLOAD routine:

sub AUTOLOAD {
    my($constname);
    ($constname = $AUTOLOAD) =~ s/.*:://;
    my $val = constant($constname, @_ ? $_[0] : 0);
    if ($! != 0) {
        if ($! =~ /Invalid/ || $!{EINVAL}) {
            $AutoLoader::AUTOLOAD = $AUTOLOAD;
            goto &AutoLoader::AUTOLOAD;
        }
        else {
            Carp::croak("Your vendor has not defined GDBM_File macro $
+constname, used");
        }
    }
    eval "sub $AUTOLOAD { $val }";
    goto &$AUTOLOAD;
}
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Line 69 is the one beginning with my $val. I'm familiar with 'use strict' and do indeed use it on my big projects, but this is not my code -- it's an excerpt from the wreq work request system.