It's the same. (QTDIR is /usr/lib64/qt-3.3) scons: *** Path does not exist for option build_dir: File "SConstruct", line 300, in ?
Sorry, I just notice that this is a build_dir, not a qt_dir problem. What is your line 257 of of development/scons/Sconstruct ? If you have ... ',') at the end, you may want to try None). Also, you might want to apply the latest patch I send to this list today. Bo