[CMake] global variable passing up via INTERNAL cache variable

[James Bigler]

Erik Johansson wrote:
> 2007/11/27, James Bigler <bigler at cs.utah.edu>:
>> I got a hint that I could do this to set values that could be read by
>> the CMakeLists.txt file above:
> 
> You can also use get_directory_property. See for example how we use it
> in Licq [1]  to get a the list of files from a subdirectory (to
> implement convenience libs).
> 
> // Erik
> 
> [1] - http://trac.licq.org/browser/branches/newapi/licq/src/CMakeLists.txt

Thanks.  I did know about this, but it didn't fit the requirements I needed.

This only helps if you have knowledge of all the directories where you happen to 
change the global variable.  I wanted something that would work without knowing 
this bit of information.  I'm dealing with dozens of directories, and I wanted 
this to be more automatic.

James