zephyr/cmake/usage/CMakeLists.txt

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CMake

# SPDX-License-Identifier: Apache-2.0
include (${ZEPHYR_BASE}/cmake/shields.cmake)
include (${ZEPHYR_BASE}/cmake/boards.cmake)
# shields.cmake and boards.cmake can be run with cmake -P for printing
# help output on user error when settings BOARD or SHIELD, and
# add_custom_target() is not available in script mode, so we place
# them in here.
add_custom_target(shields ${sorted_shield_cmds} USES_TERMINAL)
add_custom_target(boards ${list_boards_commands} USES_TERMINAL)
add_custom_target(
usage
${CMAKE_COMMAND}
-DZEPHYR_BASE=${ZEPHYR_BASE}
-DCMAKE_MAKE_PROGRAM=${CMAKE_MAKE_PROGRAM}
-P ${CMAKE_CURRENT_SOURCE_DIR}/usage.cmake
)
# NB: The reason it is 'usage' and not help is that CMake already
# defines a target 'help'