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doc: application: Correct note about external modules 

A note in the Modules (External projects) section indicated
that in the future it would be possible to do something that
can be already done.
So, let's clarify the note with how it can be done.

Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com>
This commit is contained in:
Alberto Escolar Piedras 2019-03-16 18:50:23 +01:00 committed by Kumar Gala
parent d915fa0c35
commit 7f3431da0e
1 changed files with 4 additions and 4 deletions
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8
doc/application/index.rst
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@ -676,11 +676,11 @@ if the project contains the metadata required in a module. If the project is
identified to be a module then CMake will include it in the build.
.. note::
Although the build system currently uses :ref:`west` to list the available
Although the build system normally uses :ref:`west` to list the available
external projects for potential inclusion in the build, it is perfectly
possible to use any other script or tool instead by modifying the CMake
script. A future addition will make this possible even without any
modifications to the build scripts.
possible to use any other script or tool. By calling cmake as
``cmake --DZEPHYR_MODULES=<oot-path-to-module>[;<additional-oot-module(s)>]``
, it will search in those paths instead of invoking ``west list``
The code in :file:`CMakeLists.txt` retrieves the following information for
each project using ``west list``: