The _connect function errors with
PHP Warning: odbc_connect(): SQL error: [unixODBC][Driver Manager]Data source name not found, and no default driver specified, SQL state IM002 in SQLConnect in /var/www/wlee-moodle/lib/adodb/drivers/adodb-odbc.inc.php on line 64
when the the connect function passes a dsn and database name. Previous to version 5.17, this worked fine. It looks like the logic that tries to create a dsn less connection fails on my system because it doesn't know what driver to use. Sending the exact same call to pconnect works as it used to.
If I strip out the stuff around line 55 that tries to append the database name to the dsn, it works again.
PHP 5.3.3 on RedHat 6
We're using this inside of Moodle, but I could see how this might trip up other software that calls that function.