On 4. Mar, 2009, at 7:11, Robert Dailey wrote:
On Wed, Mar 4, 2009 at 12:02 AM, Michael Wild <[email protected]>
wrote:
If you add a subdirectory, it inherits all variables and macros
from the
parent directories. This is actually what one expects, otherwise
you would
have to repeat the whole system detection (find_pacakge,
find_library,
find_path etc.) in every subdirectory. The reverse, however is not
true. By
default, variables (I'm not sure about macros) don't propagate into
the
parent scope, unless one uses the PARENT_SCOPE option or adds the
variable
to the cache which makes it global.
That makes perfect sense and works as I would expect. However, I'm
seeing
the behavior you state should not happen. That is, the macros
defined in the
child directory are somehow propagating up to the parent.
Sorry, must have missed the bar/baz difference... Well, I figure it
also makes some sense that macros and functions are global. Otherwise
one would have very confusing things going on, like a macro by the
same name doing completely unrelated things in different directories.
Michael
_______________________________________________
Powered by www.kitware.com
Visit other Kitware open-source projects at
http://www.kitware.com/opensource/opensource.html
Please keep messages on-topic and check the CMake FAQ at:
http://www.cmake.org/Wiki/CMake_FAQ
Follow this link to subscribe/unsubscribe:
http://www.cmake.org/mailman/listinfo/cmake
