I have to put pdo_pgsql.the like an embedded device that is Energy PC.

Just how can a mix compile?

Additon :

I've an embedded device that has Apache running and PHP being an Apache module. A PostgreSQL database can also be running about this device. The unit is running some flavor of Linux on PowerPC. However , PHP/Apache doesn't have pgsql (php.pgsql.so module) support and that i aren't seeing a php.ini anywhere about this device.