[Paraview] xdmf.py install is scanning my /usr recursively and try to bytecompile anything in .py

[François Bissey]

> Hi Francois,
> 
> I am a little bit confused by your email. Just to be clear, is this the
> change you are proposing?
> 
>  SET( XdmfGzipSource
>    gzstream
> @@ -504,7 +504,7 @@ IF(XDMF_WRAP_PYTHON)
> 
>    # Compile Byte Code
>    INSTALL(CODE "EXECUTE_PROCESS(COMMAND ${PYTHON_EXECUTABLE}
> ${Xdmf_SOURCE_DIR}/CMake/CompileXdmfByteCode.py
> -    ${CMAKE_INSTALL_PREFIX}/${XDMF_WRAP_PYTHON_INSTALL_PY_DIR})")
> +    ${XDMF_WRAP_PYTHON_INSTALL_DIR})")
> 
>  ENDIF(XDMF_WRAP_PYTHON)
> 
> Let me know and I will gladly commit the fix.
> 
Hi Dave,

Sorry for the delay. I now believe there may be a better fix respecting
DESTDIR as the python modules of vtk don't exhibit this problem.
I have to look it up a little bit further.

Francois