RIOT/tests/build_system/external_board_native

Example with an external board

This tests an external board implementation. The goal is to show using an external board that still needs to use the 'RIOT/boards' directory.

To allow automated testing by murdock this board is named 'native'.

As it wants to extend native, which is not a common board, some hacks must be done as the 'board' module is implemented directly by the 'RIOT/boards/native'.

If you are running an 'ubuntu-bionic' you could even compile the example in docker and run the test.

Note: This test uses still the deprecated BOARDSDIR variable instead of the new EXTERNAL_BOARD_DIRS variable. This is by intent so that the CI can verify backward compatibility is still working as intended.