After recompile site down

[Squirrel <squirrel@xxxxxxxxxxxxx>]

I've made Apache 2.2.11 port yesterday:
  ...# make clean
  ...# make
  ...# make deinstall
  ...#make install

And all went well and all my normal websites come up without a problem.  But since then non of my Joomla 1.0.15 sites are coming up. The log shows:

PHP Warning: Wrong parameter count for chr() in ..../includes/phpInputFilter/class.inputfilter.php(457) : regexp code on line 1
PHP Parse error: syntax error, unexpected T_STRING in ..../includes/phpInputFilter/class.inputfilter.php(459) : regexp code on line 1
PHP Fatal error: preg_replace(): Failed evaluating code: \nchr(0x) in ..../includes/phpInputFilter/class.inputfilter.php on line 459

It seems all of sudden after recompiling Apache, it developed a problem with chr(\\1) and chr(0x\\1).   I didn't touch PHP or MySQL, just recompile of Apache, and it still has all same configurations and host info.

Below is the code that's causing it.

function decode($source)
        {
                // url decode
                $source = html_entity_decode($source, ENT_QUOTES, "ISO-8859-1");
                // convert decimal
                $source = preg_replace('/&#(\d+);/me', "chr(\\1)", $source); // decimal notation
                // convert hex
                $source = preg_replace('/&#x([a-f0-9]+);/mei', "chr(0x\\1)", $source); // hex notation
                return $source;
        }

I've googled and tried all suggestions but nothings helping. I'm using FreeBSD 6.2, Apache 2.2.11, PHP 5.1.6_3, MySQL 5.0.27.  Should I missed a something during remake of Apache?

 Please help!!!

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