QT_THREAD_SUPPORT -> TQT_THREAD_SUPPORT conversion to align to updated admin module

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>

SConstruct

@@ -157,7 +157,7 @@ for dir in dirs:
 env.Append( CPPFLAGS = ['-DQT_NO_TRANSLATION'] )
 
 ## Add this define if you want to use qthreads
-#env.Append( CPPFLAGS = ['-DQT_THREAD_SUPPORT', '-D_REENTRANT'] )
+#env.Append( CPPFLAGS = ['-DTQT_THREAD_SUPPORT', '-D_REENTRANT'] )
 
 ## To use kdDebug(intvalue)<<"some trace"<<endl; you need to define -DDEBUG - it is done
 ## in generic.py automatically when you do scons configure debug=1