need  to set XXX_CM24 since ~/Xdmf/CMakeLists.txt does not seem to be the same as PV/Utils/Xdmf2/CMakeLists.txt
need  to set XXX_CM24 since ~/Xdmf/CMakeLists.txt does not seem
to be the same as PV/Utils/Xdmf2/CMakeLists.txt

cjh1/Xdmf2,cjh1/Xdmf2,cjh1/Xdmf2