Description:
------------
Note - php version is actually 4.39 (wasnt an option above)
OS FedoreCore1
mbstring IS listed and working in extensions

Installation seemed to go as expected, however when I executed a script to check the existance of mailparse (or load it if it wasnt already) I received this error
dl(): Unable to load dynamic library '/usr/lib/php4/mailparse.so' - /usr/lib/php4/mailparse.so: undefined symbol: mbfl_convert_filter_new

Mailparse does not appear in the list of installed modules vie extension=mailparse.so
The .so is in /usr/lib/php4/ with the other extensions

manual installation does not resolve this problem

ie 
1. download mailparse package
2. phpize configure make make install reports sucessful installation

still the same error

Reproduce code:
---------------
echo "testing for mailparse<br>";
if(extension_loaded("mailparse")) {
        echo "mailparse is detected by extension_loaded<br>";
} else {
        echo "mailparse is ***NOT** detected by extension_loaded - it has to be loaded via dl function<br>";
                dl("mailparse.so");
}

if (function_exists('mailparse_rfc822_parse_addresses'))
    		echo "mailparse exists<br>";


Expected result:
----------------
"mailparse exists"

Actual result:
--------------
testing for mailparse
mailparse is ***NOT** detected by extension_loaded - it has to be loaded via dl function
Error of type E_WARNING: dl(): Unable to load dynamic library '/usr/lib/php4/mailparse.so' - /usr/lib/php4/mailparse.so: undefined symbol: mbfl_convert_filter_new