I'm trying to build a client program to access a database using the libpq interface on MacOS X 10.3.3 using CodeWarrior 9. PostgreSQL is at version 7.4.2. It compiles ok, but I get a link error. I have linked to libpq.a, because I got different errors before I did that. Here is the error I'm getting right now: Link Error: undefined: '@_1' (code) Referenced from 'pqSetenvPoll' in libpq.a Referenced from 'pqSetenvPoll' in libpq.a Referenced from 'pqSetenvPoll' in libpq.a Referenced from 'pqSetenvPoll' in libpq.a Referenced from 'pqSetenvPoll' in libpq.a Referenced from 'pqSetenvPoll' in libpq.a Referenced from 'pqSetenvPoll' in libpq.a ---------------------------(end of broadcast)--------------------------- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match