The latest version of PostgreSQL binary for QNX 6.2.1 is available for download at http://andy.qnx.org.ru/packages/PostgreSQL-7.3.4-bld6.2.1-all.qpr . It has support for Unix domain socket, plpgsql and plpython. The QNX package also includes the documentation, FAQ ... Detailed information about this QNX port can be found at http://andy.qnx.org.ru/pgsql.html with English translation here.