Undefined symbol: vtable error with 3.2.2/3.3 on AIX 5.1

[Albert Chin]

I'm trying to build the Qt 3.1.2 toolkit on AIX 5.1 with GCC 3.2.2 and
3.3. I'm getting the following error after attempting to link an
executable:
  ...
  ld: 0711-317 ERROR: Undefined symbol: vtable for QCString
  ld: 0711-317 ERROR: Undefined symbol: typeinfo for QPtrCollection
  ld: 0711-317 ERROR: Undefined symbol: typeinfo for QTextStream
  ld: 0711-317 ERROR: Undefined symbol: typeinfo for QGDict
  ld: 0711-317 ERROR: Undefined symbol: typeinfo for QGArray

What's odd is that I don't have this error on AIX 4.3.2. What does the
above mean and how do I go about fixing it?

$ lslpp -L bos.rte.bind_cmds
 bos.rte.bind_cmds         5.1.0.50    C     F    Binder and Loader Commands

-- 
albert chin (china@thewrittenword.com)