[CMake] ADD_SUBDIRECTORY and EXCLUDE_FROM_ALL

[Stephan Tolksdorf]

Hi

If a subdirectory is included with EXCLUDE_FROM_ALL, targets in the 
subdirectory are listed in the generated Visual Studio solution, but 
targets recursively included in subdirectories of the subdirectory are 
not. Is this a bug or a feature? (I'm using CMake from CVS and VS8.)

Regards,
   Stephan