[cmake-developers] target_include_directories branch in stage

[Peter Kümmel]

Maybe this is a bit late, but wouldn't it be much
simpler to get this feature with a namespace
inspired approach:
http://public.kitware.com/Bug/view.php?id=11793

All within a namespace has the same scope as an
add_subdirectory added target. This way we get more
than the 'target_include_directories' without adding
multiple target_* functions (which maybe will come).

Peter