fix bug 9788. Qt 4.6 now only generates on PKG file per project (using macros) so add PKG file to build configs accordingly.
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>com.nokia.carbide.cpp.uidesigner.doc.user</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
</buildSpec>
<natures>
</natures>
</projectDescription>