[Mediawiki-l] Warning with Captcha Extensions

[Emufarmers Sangly]

I'm getting this warning after saving an edit, when the system prompts me
for the captcha.  This seems to occur whether I'm using the default
SimpleMath, or ReCAPTCHA.  It still works fine, but this warning appears at
the top of the screen every time:

Warning: preg_match() [function.preg-match]: Unknown modifier 'd' in
/home/[snip]/includes/EditPage.php on line 634


Lines 632-639:

        # Check for spam
        $matches = array();
        if ( $wgSpamRegex && preg_match( $wgSpamRegex, $this->textbox1,
$matches ) ) {
            $this->spamPage ( $matches[0] );
            wfProfileOut( "$fname-checks" );
            wfProfileOut( $fname );
            return false;
        }