Hi, I would suggest adding qt-sql-ibase driver to the Fedora repository. This driver provides the InterBase/FireBird plugin for Qt 4. The patch for the spec file:https://raw.github.com/Ignotus/spec-files/e35c5f95b72b63f7f51b7ae4cfc4e06fc3d62d97/sqlibase.patch Regards, -- Minh [ignotus] Ngo Kiev, Ukraine JID: ignotusp at jabber.kiev.ua