Comment 2 for bug 1180196

This comes from KDE upstream (http://quickgit.kde.org/?p=kde-workspace.git&a=blob&h=fde85473019d37a50d3d233dc45ad96ee76359d8&hb=07d3ac9d8c781755d19c71ccde6d182868a2bfb5&f=startkde.cmake#l19) which has forced PATH to have qt4 path as the first item, regardless of qtchooser, qt5-default and so on. It's obviously a workaround (for KDE's Qt4 qdbus usage) that should hopefully go away. You can use a different PATH when in an own terminal window so that qtchooser can do its job.

When it comes to qtbase-opensource-src at least, I don't think there's anything left to fix at this time regarding the problem, with the latest 5.0.2 work in 13.10 synced with Debian. The configuration placement changes in there together with newer qtchooser should help upstream to revert the PATH forcing, although a resync with Debian's Qt4 would also be needed still to have automatic fallback to Qt4.