[CMake] ExternalProject() Question

[Michael Jackson]

I am intrigued by the "ExternalProject" feature of CMake 2.8. One  
question that I have after reading through the Oct 09 "Kitware Source"  
is this. If I do a "make clean" or "rebuild" are all the  
"ExternalProjects" also cleaned/rebuilt? I could make an argument both  
ways but I was curious what the default was?

   One of my projects depends on HDF5, Tiff, Expat and Boost (And Qt  
Eventually). Writing directions to get everything downloaded and built  
is getting to be a pain. Would be simpler to have all that done for  
the user.

Thanks for any comments
_________________________________________________________
Mike Jackson                  mike.jackson at bluequartz.net
BlueQuartz Software                    www.bluequartz.net
Principal Software Engineer                  Dayton, Ohio