Clean install of Qt 4.6.3.
Opened the spectrum view demo in QtCreator, and built.
The build fails at the end when it is trying to copy the launch script (looks like the patch was wrong).

I was able to complete the build and launch the app by commenting out the following lines from spectrum/app/app.pro

1. On unices other than Mac OSX, we copy a shell script into the bin directory.
2. This script takes care of correctly setting the LD_LIBRARY_PATH so that
3. the dynamic library can be located.
   #copy_launch_script.target = copy_launch_script
   #copy_launch_script.commands = \
   #install -m 0555 $$QT_SOURCE_TREE/demos/spectrum/app/spectrum.sh ../bin/spectrum
   #QMAKE_EXTRA_TARGETS += copy_launch_script
   #POST_TARGETDEPS += copy_launch_script